projects / thirdparty / openssl.git / blame
| Commit | Line | Data |
|---|---|---|
| 31b59078 | 1 | #! /usr/bin/env perl |
| 33388b44 | 2 | # Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved. |
| 31b59078 FF |
3 | # |
| 4 | # Licensed under the Apache License 2.0 (the "License"). You may not use | |
| 5 | # this file except in compliance with the License. You can obtain a copy | |
| 6 | # in the file LICENSE in the source distribution or at | |
| 7 | # https://www.openssl.org/source/license.html | |
| 8 | ||
| 9 | # | |
| 10 | #======================================================================== | |
| 11 | # Written by Fangming Fang <fangming.fang@arm.com> for the OpenSSL project, | |
| 12 | # derived from https://github.com/ARM-software/AArch64cryptolib, original | |
| 13 | # author Samuel Lee <Samuel.Lee@arm.com>. The module is, however, dual | |
| 14 | # licensed under OpenSSL and CRYPTOGAMS licenses depending on where you | |
| 15 | # obtain it. For further details see http://www.openssl.org/~appro/cryptogams/. | |
| 16 | #======================================================================== | |
| 17 | # | |
| 18 | # Approach - assume we don't want to reload constants, so reserve ~half of vector register file for constants | |
| 19 | # | |
| 20 | # main loop to act on 4 16B blocks per iteration, and then do modulo of the accumulated intermediate hashes from the 4 blocks | |
| 21 | # | |
| 22 | # ____________________________________________________ | |
| 23 | # | | | |
| 24 | # | PRE | | |
| 25 | # |____________________________________________________| | |
| 26 | # | | | | | |
| 27 | # | CTR block 4k+8 | AES block 4k+4 | GHASH block 4k+0 | | |
| 28 | # |________________|________________|__________________| | |
| 29 | # | | | | | |
| 30 | # | CTR block 4k+9 | AES block 4k+5 | GHASH block 4k+1 | | |
| 31 | # |________________|________________|__________________| | |
| 32 | # | | | | | |
| 33 | # | CTR block 4k+10| AES block 4k+6 | GHASH block 4k+2 | | |
| 34 | # |________________|________________|__________________| | |
| 35 | # | | | | | |
| 36 | # | CTR block 4k+11| AES block 4k+7 | GHASH block 4k+3 | | |
| 37 | # |________________|____(mostly)____|__________________| | |
| 38 | # | | | |
| 39 | # | MODULO | | |
| 40 | # |____________________________________________________| | |
| 41 | # | |
| 42 | # PRE: | |
| 43 | # Ensure previous generated intermediate hash is aligned and merged with result for GHASH 4k+0 | |
| 44 | # EXT low_acc, low_acc, low_acc, #8 | |
| 45 | # EOR res_curr (4k+0), res_curr (4k+0), low_acc | |
| 46 | # | |
| 47 | # CTR block: | |
| 48 | # Increment and byte reverse counter in scalar registers and transfer to SIMD registers | |
| 49 | # REV ctr32, rev_ctr32 | |
| 50 | # ORR ctr64, constctr96_top32, ctr32, LSL #32 | |
| 51 | # INS ctr_next.d[0], constctr96_bottom64 // Keeping this in scalar registers to free up space in SIMD RF | |
| 52 | # INS ctr_next.d[1], ctr64X | |
| 53 | # ADD rev_ctr32, #1 | |
| 54 | # | |
| 55 | # AES block: | |
| 56 | # Do AES encryption/decryption on CTR block X and EOR it with input block X. Take 256 bytes key below for example. | |
| 57 | # Doing small trick here of loading input in scalar registers, EORing with last key and then transferring | |
| 58 | # Given we are very constrained in our ASIMD registers this is quite important | |
| 59 | # | |
| 60 | # Encrypt: | |
| 61 | # LDR input_low, [ input_ptr ], #8 | |
| 62 | # LDR input_high, [ input_ptr ], #8 | |
| 63 | # EOR input_low, k14_low | |
| 64 | # EOR input_high, k14_high | |
| 65 | # INS res_curr.d[0], input_low | |
| 66 | # INS res_curr.d[1], input_high | |
| 67 | # AESE ctr_curr, k0; AESMC ctr_curr, ctr_curr | |
| 68 | # AESE ctr_curr, k1; AESMC ctr_curr, ctr_curr | |
| 69 | # AESE ctr_curr, k2; AESMC ctr_curr, ctr_curr | |
| 70 | # AESE ctr_curr, k3; AESMC ctr_curr, ctr_curr | |
| 71 | # AESE ctr_curr, k4; AESMC ctr_curr, ctr_curr | |
| 72 | # AESE ctr_curr, k5; AESMC ctr_curr, ctr_curr | |
| 73 | # AESE ctr_curr, k6; AESMC ctr_curr, ctr_curr | |
| 74 | # AESE ctr_curr, k7; AESMC ctr_curr, ctr_curr | |
| 75 | # AESE ctr_curr, k8; AESMC ctr_curr, ctr_curr | |
| 76 | # AESE ctr_curr, k9; AESMC ctr_curr, ctr_curr | |
| 77 | # AESE ctr_curr, k10; AESMC ctr_curr, ctr_curr | |
| 78 | # AESE ctr_curr, k11; AESMC ctr_curr, ctr_curr | |
| 79 | # AESE ctr_curr, k12; AESMC ctr_curr, ctr_curr | |
| 80 | # AESE ctr_curr, k13 | |
| 81 | # EOR res_curr, res_curr, ctr_curr | |
| 82 | # ST1 { res_curr.16b }, [ output_ptr ], #16 | |
| 83 | # | |
| 84 | # Decrypt: | |
| 85 | # AESE ctr_curr, k0; AESMC ctr_curr, ctr_curr | |
| 86 | # AESE ctr_curr, k1; AESMC ctr_curr, ctr_curr | |
| 87 | # AESE ctr_curr, k2; AESMC ctr_curr, ctr_curr | |
| 88 | # AESE ctr_curr, k3; AESMC ctr_curr, ctr_curr | |
| 89 | # AESE ctr_curr, k4; AESMC ctr_curr, ctr_curr | |
| 90 | # AESE ctr_curr, k5; AESMC ctr_curr, ctr_curr | |
| 91 | # AESE ctr_curr, k6; AESMC ctr_curr, ctr_curr | |
| 92 | # AESE ctr_curr, k7; AESMC ctr_curr, ctr_curr | |
| 93 | # AESE ctr_curr, k8; AESMC ctr_curr, ctr_curr | |
| 94 | # AESE ctr_curr, k9; AESMC ctr_curr, ctr_curr | |
| 95 | # AESE ctr_curr, k10; AESMC ctr_curr, ctr_curr | |
| 96 | # AESE ctr_curr, k11; AESMC ctr_curr, ctr_curr | |
| 97 | # AESE ctr_curr, k12; AESMC ctr_curr, ctr_curr | |
| 98 | # AESE ctr_curr, k13 | |
| 99 | # LDR res_curr, [ input_ptr ], #16 | |
| 100 | # EOR res_curr, res_curr, ctr_curr | |
| 101 | # MOV output_low, res_curr.d[0] | |
| 102 | # MOV output_high, res_curr.d[1] | |
| 103 | # EOR output_low, k14_low | |
| 104 | # EOR output_high, k14_high | |
| 105 | # STP output_low, output_high, [ output_ptr ], #16 | |
| 106 | # | |
| 107 | # GHASH block X: | |
| 108 | # do 128b karatsuba polynomial multiplication on block | |
| 109 | # We only have 64b->128b polynomial multipliers, naively that means we need to do 4 64b multiplies to generate a 128b | |
| 110 | # | |
| 111 | # multiplication: | |
| 112 | # Pmull(A,B) == (Pmull(Ah,Bh)<<128 | Pmull(Al,Bl)) ^ (Pmull(Ah,Bl) ^ Pmull(Al,Bh))<<64 | |
| 113 | # | |
| 114 | # The idea behind Karatsuba multiplication is that we can do just 3 64b multiplies: | |
| 115 | # Pmull(A,B) == (Pmull(Ah,Bh)<<128 | Pmull(Al,Bl)) ^ (Pmull(Ah^Al,Bh^Bl) ^ Pmull(Ah,Bh) ^ Pmull(Al,Bl))<<64 | |
| 116 | # | |
| 117 | # There is some complication here because the bit order of GHASH's PMULL is reversed compared to elsewhere, so we are | |
| 118 | # multiplying with "twisted" powers of H | |
| 119 | # | |
| 120 | # Note: We can PMULL directly into the acc_x in first GHASH of the loop | |
| 121 | # Note: For scheduling big cores we want to split the processing to happen over two loop iterations - otherwise the critical | |
| 122 | # path latency dominates the performance | |
| 123 | # | |
| 124 | # This has a knock on effect on register pressure, so we have to be a bit more clever with our temporary registers | |
| 125 | # than indicated here | |
| 126 | # REV64 res_curr, res_curr | |
| 127 | # INS t_m.d[0], res_curr.d[1] | |
| 128 | # EOR t_m.8B, t_m.8B, res_curr.8B | |
| 129 | # PMULL2 t_h, res_curr, HX | |
| 130 | # PMULL t_l, res_curr, HX | |
| 131 | # PMULL t_m, t_m, HX_k | |
| 132 | # EOR acc_h, acc_h, t_h | |
| 133 | # EOR acc_l, acc_l, t_l | |
| 134 | # EOR acc_m, acc_m, t_m | |
| 135 | # | |
| 136 | # MODULO: take the partial accumulators (~representing sum of 256b multiplication results), from GHASH and do modulo reduction on them | |
| 137 | # There is some complication here because the bit order of GHASH's PMULL is reversed compared to elsewhere, so we are doing modulo | |
| 138 | # with a reversed constant | |
| 139 | # EOR acc_m, acc_m, acc_h | |
| 140 | # EOR acc_m, acc_m, acc_l // Finish off karatsuba processing | |
| 141 | # PMULL t_mod, acc_h, mod_constant | |
| 142 | # EXT acc_h, acc_h, acc_h, #8 | |
| 143 | # EOR acc_m, acc_m, acc_h | |
| 144 | # EOR acc_m, acc_m, t_mod | |
| 145 | # PMULL acc_h, acc_m, mod_constant | |
| 146 | # EXT acc_m, acc_m, acc_m, #8 | |
| 147 | # EOR acc_l, acc_l, acc_h | |
| 148 | # EOR acc_l, acc_l, acc_m | |
| 149 | ||
| 150 | $output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef; | |
| 151 | $flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef; | |
| 152 | ||
| 153 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 154 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or | |
| 155 | ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate ) or | |
| 156 | die "can't locate arm-xlate.pl"; | |
| 157 | ||
| 158 | open OUT,"| \"$^X\" $xlate $flavour $output"; | |
| 159 | *STDOUT=*OUT; | |
| 160 | ||
| 161 | $input_ptr="x0"; #argument block | |
| 162 | $bit_length="x1"; | |
| 163 | $output_ptr="x2"; | |
| 164 | $current_tag="x3"; | |
| 165 | $counter="x16"; | |
| 166 | $cc="x8"; | |
| 167 | ||
| 168 | { | |
| 169 | my ($end_input_ptr,$main_end_input_ptr,$input_l0,$input_h0)=map("x$_",(4..7)); | |
| 170 | my ($input_l1,$input_h1,$input_l2,$input_h2,$input_l3,$input_h3)=map("x$_",(19..24)); | |
| 171 | my ($output_l1,$output_h1,$output_l2,$output_h2,$output_l3,$output_h3)=map("x$_",(19..24)); | |
| 172 | my ($output_l0,$output_h0)=map("x$_",(6..7)); | |
| 173 | ||
| 174 | my $ctr32w="w9"; | |
| 175 | my ($ctr32x,$ctr96_b64x,$ctr96_t32x,$rctr32x,$rk10_l,$rk10_h,$len)=map("x$_",(9..15)); | |
| 176 | my ($ctr96_t32w,$rctr32w)=map("w$_",(11..12)); | |
| 177 | ||
| 178 | my ($ctr0b,$ctr1b,$ctr2b,$ctr3b,$res0b,$res1b,$res2b,$res3b)=map("v$_.16b",(0..7)); | |
| 179 | my ($ctr0,$ctr1,$ctr2,$ctr3,$res0,$res1,$res2,$res3)=map("v$_",(0..7)); | |
| 180 | my ($ctr0d,$ctr1d,$ctr2d,$ctr3d,$res0d,$res1d,$res2d,$res3d)=map("d$_",(0..7)); | |
| 181 | my ($res0q,$res1q,$res2q,$res3q)=map("q$_",(4..7)); | |
| 182 | ||
| 183 | my ($acc_hb,$acc_mb,$acc_lb)=map("v$_.16b",(9..11)); | |
| 184 | my ($acc_h,$acc_m,$acc_l)=map("v$_",(9..11)); | |
| 185 | my ($acc_hd,$acc_md,$acc_ld)=map("d$_",(9..11)); | |
| 186 | ||
| 187 | my ($h1,$h2,$h3,$h4,$h12k,$h34k)=map("v$_",(12..17)); | |
| 188 | my ($h1q,$h2q,$h3q,$h4q)=map("q$_",(12..15)); | |
| 189 | my ($h1b,$h2b,$h3b,$h4b)=map("v$_.16b",(12..15)); | |
| 190 | ||
| 191 | my $t0="v8"; | |
| 192 | my $t0d="d8"; | |
| 193 | ||
| 194 | my ($t1,$t2,$t3)=map("v$_",(28..30)); | |
| 195 | my ($t1d,$t2d,$t3d)=map("d$_",(28..30)); | |
| 196 | ||
| 197 | my $t4="v8"; | |
| 198 | my $t4d="d8"; | |
| 199 | my $t5="v28"; | |
| 200 | my $t5d="d28"; | |
| 201 | my $t6="v31"; | |
| 202 | my $t6d="d31"; | |
| 203 | ||
| 204 | my $t7="v4"; | |
| 205 | my $t7d="d4"; | |
| 206 | my $t8="v29"; | |
| 207 | my $t8d="d29"; | |
| 208 | my $t9="v30"; | |
| 209 | my $t9d="d30"; | |
| 210 | ||
| 211 | my ($ctr_t0,$ctr_t1,$ctr_t2,$ctr_t3)=map("v$_",(4..7)); | |
| 212 | my ($ctr_t0d,$ctr_t1d,$ctr_t2d,$ctr_t3d)=map("d$_",(4..7)); | |
| 213 | my ($ctr_t0b,$ctr_t1b,$ctr_t2b,$ctr_t3b)=map("v$_.16b",(4..7)); | |
| 214 | ||
| 215 | my $mod_constantd="d8"; | |
| 216 | my $mod_constant="v8"; | |
| 217 | my $mod_t="v31"; | |
| 218 | ||
| 219 | my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7,$rk8,$rk9)=map("v$_.16b",(18..27)); | |
| 220 | my ($rk0q,$rk1q,$rk2q,$rk3q,$rk4q,$rk5q,$rk6q,$rk7q,$rk8q,$rk9q)=map("q$_",(18..27)); | |
| 221 | my $rk2q1="v20.1q"; | |
| 222 | my $rk3q1="v21.1q"; | |
| 223 | my $rk4v="v22"; | |
| 224 | my $rk4d="d22"; | |
| 225 | ||
| 226 | $code=<<___; | |
| 227 | #include "arm_arch.h" | |
| 228 | ||
| 229 | #if __ARM_MAX_ARCH__>=8 | |
| 230 | ___ | |
| 231 | $code.=".arch armv8-a+crypto\n.text\n" if ($flavour =~ /64/); | |
| 232 | $code.=<<___ if ($flavour !~ /64/); | |
| 233 | .fpu neon | |
| 234 | #ifdef __thumb2__ | |
| 235 | .syntax unified | |
| 236 | .thumb | |
| 237 | # define INST(a,b,c,d) $_byte c,0xef,a,b | |
| 238 | #else | |
| 239 | .code 32 | |
| 240 | # define INST(a,b,c,d) $_byte a,b,c,0xf2 | |
| 241 | #endif | |
| 242 | ||
| 243 | .text | |
| 244 | ___ | |
| 245 | ||
| 246 | ######################################################################################### | |
| 247 | # size_t aes_gcm_enc_128_kernel(const unsigned char *in, | |
| 248 | # size_t len, | |
| 249 | # unsigned char *out, | |
| 250 | # const void *key, | |
| 251 | # unsigned char ivec[16], | |
| 252 | # u64 *Xi); | |
| 253 | # | |
| 254 | $code.=<<___; | |
| 255 | .global aes_gcm_enc_128_kernel | |
| 256 | .type aes_gcm_enc_128_kernel,%function | |
| 257 | .align 4 | |
| 258 | aes_gcm_enc_128_kernel: | |
| 259 | cbz x1, .L128_enc_ret | |
| 260 | stp x19, x20, [sp, #-112]! | |
| 261 | mov x16, x4 | |
| 262 | mov x8, x5 | |
| 263 | stp x21, x22, [sp, #16] | |
| 264 | stp x23, x24, [sp, #32] | |
| 265 | stp d8, d9, [sp, #48] | |
| 266 | stp d10, d11, [sp, #64] | |
| 267 | stp d12, d13, [sp, #80] | |
| 268 | stp d14, d15, [sp, #96] | |
| 269 | ||
| 270 | ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 | |
| 271 | ldp $rk10_l, $rk10_h, [$cc, #160] @ load rk10 | |
| 272 | ||
| 273 | ld1 {$acc_lb}, [$current_tag] | |
| 274 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 275 | rev64 $acc_lb, $acc_lb | |
| 276 | lsr $main_end_input_ptr, $bit_length, #3 @ byte_len | |
| 277 | mov $len, $main_end_input_ptr | |
| 278 | ||
| 279 | ldr $rk9q, [$cc, #144] @ load rk9 | |
| 280 | add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr | |
| 281 | sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 | |
| 282 | ||
| 283 | lsr $rctr32x, $ctr96_t32x, #32 | |
| 284 | ldr $h4q, [$current_tag, #112] @ load h4l | h4h | |
| 285 | ext $h4b, $h4b, $h4b, #8 | |
| 286 | ||
| 287 | fmov $ctr1d, $ctr96_b64x @ CTR block 1 | |
| 288 | rev $rctr32w, $rctr32w @ rev_ctr32 | |
| 289 | ||
| 290 | add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 | |
| 291 | orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w | |
| 292 | ldr $rk0q, [$cc, #0] @ load rk0 | |
| 293 | ||
| 294 | rev $ctr32w, $rctr32w @ CTR block 1 | |
| 295 | add $rctr32w, $rctr32w, #1 @ CTR block 1 | |
| 296 | fmov $ctr3d, $ctr96_b64x @ CTR block 3 | |
| 297 | ||
| 298 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 | |
| 299 | ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible | |
| 300 | ||
| 301 | fmov $ctr1.d[1], $ctr32x @ CTR block 1 | |
| 302 | rev $ctr32w, $rctr32w @ CTR block 2 | |
| 303 | ||
| 304 | fmov $ctr2d, $ctr96_b64x @ CTR block 2 | |
| 305 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 | |
| 306 | add $rctr32w, $rctr32w, #1 @ CTR block 2 | |
| 307 | ||
| 308 | fmov $ctr2.d[1], $ctr32x @ CTR block 2 | |
| 309 | rev $ctr32w, $rctr32w @ CTR block 3 | |
| 310 | ||
| 311 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 | |
| 312 | ldr $rk1q, [$cc, #16] @ load rk1 | |
| 313 | ||
| 314 | add $rctr32w, $rctr32w, #1 @ CTR block 3 | |
| 315 | fmov $ctr3.d[1], $ctr32x @ CTR block 3 | |
| 316 | ||
| 317 | ldr $h3q, [$current_tag, #80] @ load h3l | h3h | |
| 318 | ext $h3b, $h3b, $h3b, #8 | |
| 319 | ||
| 320 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 | |
| 321 | ldr $rk2q, [$cc, #32] @ load rk2 | |
| 322 | ||
| 323 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 | |
| 324 | ldr $h1q, [$current_tag, #32] @ load h1l | h1h | |
| 325 | ext $h1b, $h1b, $h1b, #8 | |
| 326 | ||
| 327 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 | |
| 328 | ldr $rk8q, [$cc, #128] @ load rk8 | |
| 329 | ||
| 330 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 | |
| 331 | ldr $rk3q, [$cc, #48] @ load rk3 | |
| 332 | ||
| 333 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 | |
| 334 | trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l | |
| 335 | ||
| 336 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 | |
| 337 | ldr $rk6q, [$cc, #96] @ load rk6 | |
| 338 | ||
| 339 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 | |
| 340 | ldr $rk7q, [$cc, #112] @ load rk7 | |
| 341 | ||
| 342 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 | |
| 343 | trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h | |
| 344 | ||
| 345 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 | |
| 346 | ldr $rk5q, [$cc, #80] @ load rk5 | |
| 347 | ||
| 348 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 | |
| 349 | ldr $h2q, [$current_tag, #64] @ load h2l | h2h | |
| 350 | ext $h2b, $h2b, $h2b, #8 | |
| 351 | ||
| 352 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 | |
| 353 | ||
| 354 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 | |
| 355 | eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k | |
| 356 | ||
| 357 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 | |
| 358 | ||
| 359 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 | |
| 360 | ||
| 361 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 | |
| 362 | ldr $rk4q, [$cc, #64] @ load rk4 | |
| 363 | ||
| 364 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 | |
| 365 | ||
| 366 | and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) | |
| 367 | trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l | |
| 368 | ||
| 369 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 | |
| 370 | add $main_end_input_ptr, $main_end_input_ptr, $input_ptr | |
| 371 | ||
| 372 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 | |
| 373 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks | |
| 374 | ||
| 375 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 | |
| 376 | ||
| 377 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 | |
| 378 | ||
| 379 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 | |
| 380 | ||
| 381 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 | |
| 382 | ||
| 383 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 | |
| 384 | ||
| 385 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 | |
| 386 | ||
| 387 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 | |
| 388 | trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h | |
| 389 | ||
| 390 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 | |
| 391 | ||
| 392 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 | |
| 393 | ||
| 394 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 | |
| 395 | ||
| 396 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 | |
| 397 | ||
| 398 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 | |
| 399 | ||
| 400 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 | |
| 401 | ||
| 402 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 | |
| 403 | ||
| 404 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 | |
| 405 | ||
| 406 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 | |
| 407 | ||
| 408 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 | |
| 409 | ||
| 410 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 | |
| 411 | ||
| 412 | aese $ctr2b, $rk9 @ AES block 2 - round 9 | |
| 413 | ||
| 414 | aese $ctr0b, $rk9 @ AES block 0 - round 9 | |
| 415 | ||
| 416 | eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k | |
| 417 | ||
| 418 | aese $ctr1b, $rk9 @ AES block 1 - round 9 | |
| 419 | ||
| 420 | aese $ctr3b, $rk9 @ AES block 3 - round 9 | |
| 421 | b.ge .L128_enc_tail @ handle tail | |
| 422 | ||
| 423 | ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 0 - load plaintext | |
| 424 | ||
| 425 | ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 2 - load plaintext | |
| 426 | ||
| 427 | ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 1 - load plaintext | |
| 428 | ||
| 429 | ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 3 - load plaintext | |
| 430 | ||
| 431 | eor $input_l0, $input_l0, $rk10_l @ AES block 0 - round 10 low | |
| 432 | eor $input_h0, $input_h0, $rk10_h @ AES block 0 - round 10 high | |
| 433 | ||
| 434 | eor $input_l2, $input_l2, $rk10_l @ AES block 2 - round 10 low | |
| 435 | fmov $ctr_t0d, $input_l0 @ AES block 0 - mov low | |
| 436 | ||
| 437 | eor $input_l1, $input_l1, $rk10_l @ AES block 1 - round 10 low | |
| 438 | eor $input_h2, $input_h2, $rk10_h @ AES block 2 - round 10 high | |
| 439 | fmov $ctr_t0.d[1], $input_h0 @ AES block 0 - mov high | |
| 440 | ||
| 441 | fmov $ctr_t1d, $input_l1 @ AES block 1 - mov low | |
| 442 | eor $input_h1, $input_h1, $rk10_h @ AES block 1 - round 10 high | |
| 443 | ||
| 444 | eor $input_l3, $input_l3, $rk10_l @ AES block 3 - round 10 low | |
| 445 | fmov $ctr_t1.d[1], $input_h1 @ AES block 1 - mov high | |
| 446 | ||
| 447 | fmov $ctr_t2d, $input_l2 @ AES block 2 - mov low | |
| 448 | eor $input_h3, $input_h3, $rk10_h @ AES block 3 - round 10 high | |
| 449 | rev $ctr32w, $rctr32w @ CTR block 4 | |
| 450 | ||
| 451 | fmov $ctr_t2.d[1], $input_h2 @ AES block 2 - mov high | |
| 452 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 | |
| 453 | ||
| 454 | eor $res0b, $ctr_t0b, $ctr0b @ AES block 0 - result | |
| 455 | fmov $ctr0d, $ctr96_b64x @ CTR block 4 | |
| 456 | add $rctr32w, $rctr32w, #1 @ CTR block 4 | |
| 457 | ||
| 458 | fmov $ctr0.d[1], $ctr32x @ CTR block 4 | |
| 459 | rev $ctr32w, $rctr32w @ CTR block 5 | |
| 460 | ||
| 461 | eor $res1b, $ctr_t1b, $ctr1b @ AES block 1 - result | |
| 462 | fmov $ctr1d, $ctr96_b64x @ CTR block 5 | |
| 463 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 | |
| 464 | ||
| 465 | add $rctr32w, $rctr32w, #1 @ CTR block 5 | |
| 466 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 467 | fmov $ctr1.d[1], $ctr32x @ CTR block 5 | |
| 468 | ||
| 469 | fmov $ctr_t3d, $input_l3 @ AES block 3 - mov low | |
| 470 | rev $ctr32w, $rctr32w @ CTR block 6 | |
| 471 | st1 { $res0b}, [$output_ptr], #16 @ AES block 0 - store result | |
| 472 | ||
| 473 | fmov $ctr_t3.d[1], $input_h3 @ AES block 3 - mov high | |
| 474 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 | |
| 475 | ||
| 476 | add $rctr32w, $rctr32w, #1 @ CTR block 6 | |
| 477 | eor $res2b, $ctr_t2b, $ctr2b @ AES block 2 - result | |
| 478 | st1 { $res1b}, [$output_ptr], #16 @ AES block 1 - store result | |
| 479 | ||
| 480 | fmov $ctr2d, $ctr96_b64x @ CTR block 6 | |
| 481 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks | |
| 482 | ||
| 483 | fmov $ctr2.d[1], $ctr32x @ CTR block 6 | |
| 484 | rev $ctr32w, $rctr32w @ CTR block 7 | |
| 485 | st1 { $res2b}, [$output_ptr], #16 @ AES block 2 - store result | |
| 486 | ||
| 487 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 7 | |
| 488 | ||
| 489 | eor $res3b, $ctr_t3b, $ctr3b @ AES block 3 - result | |
| 490 | st1 { $res3b}, [$output_ptr], #16 @ AES block 3 - store result | |
| 491 | b.ge .L128_enc_prepretail @ do prepretail | |
| 492 | ||
| 493 | .L128_enc_main_loop: @ main loop start | |
| 494 | ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 4k+3 - load plaintext | |
| 495 | rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) | |
| 496 | rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) | |
| 497 | ||
| 498 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 499 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 | |
| 500 | ||
| 501 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 502 | rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) | |
| 503 | ||
| 504 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 505 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 | |
| 506 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 | |
| 507 | ||
| 508 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 509 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 510 | ||
| 511 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 512 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 513 | ||
| 514 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 515 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 516 | ||
| 517 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 518 | eor $input_h3, $input_h3, $rk10_h @ AES block 4k+3 - round 10 high | |
| 519 | ||
| 520 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 521 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 522 | ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 4k+4 - load plaintext | |
| 523 | ||
| 524 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 525 | rev $ctr32w, $rctr32w @ CTR block 4k+8 | |
| 526 | ||
| 527 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 528 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 529 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 | |
| 530 | ||
| 531 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 532 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 | |
| 533 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 534 | ||
| 535 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 536 | ||
| 537 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 538 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 539 | ||
| 540 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 541 | ||
| 542 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 543 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 544 | ||
| 545 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 546 | ||
| 547 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 548 | rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) | |
| 549 | ||
| 550 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 551 | ||
| 552 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 553 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 554 | ||
| 555 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 556 | eor $input_h0, $input_h0, $rk10_h @ AES block 4k+4 - round 10 high | |
| 557 | ||
| 558 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 559 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 560 | ||
| 561 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 562 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 563 | ||
| 564 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 565 | eor $input_l0, $input_l0, $rk10_l @ AES block 4k+4 - round 10 low | |
| 566 | ||
| 567 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 568 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 569 | ||
| 570 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 571 | ||
| 572 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 573 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 574 | ||
| 575 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 576 | ||
| 577 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 578 | movi $mod_constant.8b, #0xc2 | |
| 579 | ||
| 580 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 581 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 582 | ||
| 583 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 584 | ||
| 585 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 586 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 587 | ||
| 588 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 589 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 590 | ||
| 591 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 592 | ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 4k+5 - load plaintext | |
| 593 | ||
| 594 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 595 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 596 | ||
| 597 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 598 | ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 4k+6 - load plaintext | |
| 599 | ||
| 600 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 601 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 602 | ||
| 603 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 604 | eor $input_l1, $input_l1, $rk10_l @ AES block 4k+5 - round 10 low | |
| 605 | ||
| 606 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 607 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 608 | ||
| 609 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 610 | eor $input_l3, $input_l3, $rk10_l @ AES block 4k+3 - round 10 low | |
| 611 | ||
| 612 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 613 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 614 | ||
| 615 | fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low | |
| 616 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 617 | fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high | |
| 618 | ||
| 619 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 620 | fmov $ctr_t3d, $input_l3 @ AES block 4k+3 - mov low | |
| 621 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 622 | ||
| 623 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 624 | fmov $ctr_t1d, $input_l1 @ AES block 4k+5 - mov low | |
| 625 | ||
| 626 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 627 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 628 | ||
| 629 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 630 | eor $input_h1, $input_h1, $rk10_h @ AES block 4k+5 - round 10 high | |
| 631 | ||
| 632 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 633 | fmov $ctr_t1.d[1], $input_h1 @ AES block 4k+5 - mov high | |
| 634 | ||
| 635 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 636 | fmov $ctr_t3.d[1], $input_h3 @ AES block 4k+3 - mov high | |
| 637 | ||
| 638 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 639 | cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL | |
| 640 | ||
| 641 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 642 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 643 | ||
| 644 | aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 | |
| 645 | eor $input_l2, $input_l2, $rk10_l @ AES block 4k+6 - round 10 low | |
| 646 | eor $input_h2, $input_h2, $rk10_h @ AES block 4k+6 - round 10 high | |
| 647 | ||
| 648 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 649 | fmov $ctr_t2d, $input_l2 @ AES block 4k+6 - mov low | |
| 650 | ||
| 651 | aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 | |
| 652 | fmov $ctr_t2.d[1], $input_h2 @ AES block 4k+6 - mov high | |
| 653 | ||
| 654 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 655 | eor $res0b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result | |
| 656 | ||
| 657 | fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 | |
| 658 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 659 | ||
| 660 | fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 | |
| 661 | rev $ctr32w, $rctr32w @ CTR block 4k+9 | |
| 662 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 663 | ||
| 664 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 665 | eor $res1b, $ctr_t1b, $ctr1b @ AES block 4k+5 - result | |
| 666 | ||
| 667 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 | |
| 668 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 | |
| 669 | fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 | |
| 670 | ||
| 671 | pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 672 | fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 | |
| 673 | rev $ctr32w, $rctr32w @ CTR block 4k+10 | |
| 674 | ||
| 675 | aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 | |
| 676 | st1 { $res0b}, [$output_ptr], #16 @ AES block 4k+4 - store result | |
| 677 | eor $res2b, $ctr_t2b, $ctr2b @ AES block 4k+6 - result | |
| 678 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 | |
| 679 | ||
| 680 | aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 | |
| 681 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 | |
| 682 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 683 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+10 | |
| 684 | ||
| 685 | eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low | |
| 686 | st1 { $res1b}, [$output_ptr], #16 @ AES block 4k+5 - store result | |
| 687 | ||
| 688 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+10 | |
| 689 | st1 { $res2b}, [$output_ptr], #16 @ AES block 4k+6 - store result | |
| 690 | rev $ctr32w, $rctr32w @ CTR block 4k+11 | |
| 691 | ||
| 692 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+11 | |
| 693 | eor $res3b, $ctr_t3b, $ctr3b @ AES block 4k+3 - result | |
| 694 | ||
| 695 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 696 | st1 { $res3b}, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 697 | b.lt .L128_enc_main_loop | |
| 698 | ||
| 699 | .L128_enc_prepretail: @ PREPRETAIL | |
| 700 | rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) | |
| 701 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 | |
| 702 | rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) | |
| 703 | ||
| 704 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 705 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 | |
| 706 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 | |
| 707 | ||
| 708 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 709 | rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) | |
| 710 | ||
| 711 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 712 | ||
| 713 | rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) | |
| 714 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 715 | ||
| 716 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 717 | ||
| 718 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 719 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 720 | ||
| 721 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 722 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 723 | ||
| 724 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 725 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 726 | ||
| 727 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 728 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 729 | ||
| 730 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 731 | ||
| 732 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 733 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 734 | ||
| 735 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 736 | ||
| 737 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 738 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 739 | ||
| 740 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 741 | ||
| 742 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 743 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 744 | ||
| 745 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 746 | ||
| 747 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 748 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 749 | ||
| 750 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 751 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 752 | ||
| 753 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 754 | ||
| 755 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 756 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 757 | ||
| 758 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 759 | ||
| 760 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 761 | ||
| 762 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 763 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 764 | ||
| 765 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 766 | ||
| 767 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 768 | movi $mod_constant.8b, #0xc2 | |
| 769 | ||
| 770 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 771 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 772 | ||
| 773 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 774 | ||
| 775 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 776 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 777 | ||
| 778 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 779 | ||
| 780 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 781 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 782 | ||
| 783 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 784 | ||
| 785 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 786 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 787 | ||
| 788 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 789 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 790 | ||
| 791 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 792 | ||
| 793 | pmull $t1.1q, $acc_h.1d, $mod_constant.1d | |
| 794 | eor $acc_mb, $acc_mb, $acc_hb @ karatsuba tidy up | |
| 795 | ||
| 796 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 797 | ||
| 798 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 799 | ext $acc_hb, $acc_hb, $acc_hb, #8 | |
| 800 | ||
| 801 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 802 | ||
| 803 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 804 | eor $acc_mb, $acc_mb, $acc_lb | |
| 805 | ||
| 806 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 807 | ||
| 808 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 809 | ||
| 810 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 811 | ||
| 812 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 813 | eor $acc_mb, $acc_mb, $t1.16b | |
| 814 | ||
| 815 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 816 | ||
| 817 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 818 | ||
| 819 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 820 | ||
| 821 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 822 | eor $acc_mb, $acc_mb, $acc_hb | |
| 823 | ||
| 824 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 825 | ||
| 826 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 827 | ||
| 828 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 829 | ||
| 830 | pmull $t1.1q, $acc_m.1d, $mod_constant.1d | |
| 831 | ||
| 832 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 833 | ext $acc_mb, $acc_mb, $acc_mb, #8 | |
| 834 | ||
| 835 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 836 | ||
| 837 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 838 | eor $acc_lb, $acc_lb, $t1.16b | |
| 839 | ||
| 840 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 841 | ||
| 842 | aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 | |
| 843 | ||
| 844 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 845 | ||
| 846 | aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 | |
| 847 | ||
| 848 | aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 | |
| 849 | eor $acc_lb, $acc_lb, $acc_mb | |
| 850 | ||
| 851 | aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 | |
| 852 | .L128_enc_tail: @ TAIL | |
| 853 | ||
| 854 | sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process | |
| 855 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES block 4k+4 - load plaintext | |
| 856 | ||
| 857 | cmp $main_end_input_ptr, #48 | |
| 858 | ||
| 859 | ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag | |
| 860 | eor $input_l0, $input_l0, $rk10_l @ AES block 4k+4 - round 10 low | |
| 861 | eor $input_h0, $input_h0, $rk10_h @ AES block 4k+4 - round 10 high | |
| 862 | ||
| 863 | fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low | |
| 864 | ||
| 865 | fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high | |
| 866 | ||
| 867 | eor $res1b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result | |
| 868 | ||
| 869 | b.gt .L128_enc_blocks_more_than_3 | |
| 870 | ||
| 871 | sub $rctr32w, $rctr32w, #1 | |
| 872 | movi $acc_l.8b, #0 | |
| 873 | mov $ctr3b, $ctr2b | |
| 874 | ||
| 875 | cmp $main_end_input_ptr, #32 | |
| 876 | mov $ctr2b, $ctr1b | |
| 877 | movi $acc_h.8b, #0 | |
| 878 | ||
| 879 | movi $acc_m.8b, #0 | |
| 880 | b.gt .L128_enc_blocks_more_than_2 | |
| 881 | ||
| 882 | mov $ctr3b, $ctr1b | |
| 883 | cmp $main_end_input_ptr, #16 | |
| 884 | ||
| 885 | sub $rctr32w, $rctr32w, #1 | |
| 886 | b.gt .L128_enc_blocks_more_than_1 | |
| 887 | ||
| 888 | sub $rctr32w, $rctr32w, #1 | |
| 889 | b .L128_enc_blocks_less_than_1 | |
| 890 | .L128_enc_blocks_more_than_3: @ blocks left > 3 | |
| 891 | st1 { $res1b}, [$output_ptr], #16 @ AES final-3 block - store result | |
| 892 | ||
| 893 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-2 block - load input low & high | |
| 894 | ||
| 895 | rev64 $res0b, $res1b @ GHASH final-3 block | |
| 896 | ||
| 897 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 898 | eor $input_h0, $input_h0, $rk10_h @ AES final-2 block - round 10 high | |
| 899 | eor $input_l0, $input_l0, $rk10_l @ AES final-2 block - round 10 low | |
| 900 | ||
| 901 | fmov $res1d, $input_l0 @ AES final-2 block - mov low | |
| 902 | ||
| 903 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 904 | fmov $res1.d[1], $input_h0 @ AES final-2 block - mov high | |
| 905 | ||
| 906 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low | |
| 907 | mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid | |
| 908 | ||
| 909 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high | |
| 910 | ||
| 911 | mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid | |
| 912 | ||
| 913 | eor $res1b, $res1b, $ctr1b @ AES final-2 block - result | |
| 914 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid | |
| 915 | ||
| 916 | pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid | |
| 917 | .L128_enc_blocks_more_than_2: @ blocks left > 2 | |
| 918 | ||
| 919 | st1 { $res1b}, [$output_ptr], #16 @ AES final-2 block - store result | |
| 920 | ||
| 921 | rev64 $res0b, $res1b @ GHASH final-2 block | |
| 922 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-1 block - load input low & high | |
| 923 | ||
| 924 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 925 | ||
| 926 | eor $input_l0, $input_l0, $rk10_l @ AES final-1 block - round 10 low | |
| 927 | ||
| 928 | fmov $res1d, $input_l0 @ AES final-1 block - mov low | |
| 929 | eor $input_h0, $input_h0, $rk10_h @ AES final-1 block - round 10 high | |
| 930 | ||
| 931 | pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high | |
| 932 | fmov $res1.d[1], $input_h0 @ AES final-1 block - mov high | |
| 933 | ||
| 934 | mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid | |
| 935 | ||
| 936 | pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low | |
| 937 | ||
| 938 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high | |
| 939 | ||
| 940 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid | |
| 941 | ||
| 942 | eor $res1b, $res1b, $ctr2b @ AES final-1 block - result | |
| 943 | ||
| 944 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low | |
| 945 | ||
| 946 | pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid | |
| 947 | ||
| 948 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 949 | ||
| 950 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid | |
| 951 | .L128_enc_blocks_more_than_1: @ blocks left > 1 | |
| 952 | ||
| 953 | st1 { $res1b}, [$output_ptr], #16 @ AES final-1 block - store result | |
| 954 | ||
| 955 | rev64 $res0b, $res1b @ GHASH final-1 block | |
| 956 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final block - load input low & high | |
| 957 | ||
| 958 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 959 | ||
| 960 | eor $input_h0, $input_h0, $rk10_h @ AES final block - round 10 high | |
| 961 | eor $input_l0, $input_l0, $rk10_l @ AES final block - round 10 low | |
| 962 | ||
| 963 | fmov $res1d, $input_l0 @ AES final block - mov low | |
| 964 | ||
| 965 | pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high | |
| 966 | fmov $res1.d[1], $input_h0 @ AES final block - mov high | |
| 967 | ||
| 968 | mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid | |
| 969 | ||
| 970 | pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low | |
| 971 | ||
| 972 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid | |
| 973 | ||
| 974 | eor $res1b, $res1b, $ctr3b @ AES final block - result | |
| 975 | ||
| 976 | ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid | |
| 977 | ||
| 978 | pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid | |
| 979 | ||
| 980 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low | |
| 981 | ||
| 982 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high | |
| 983 | ||
| 984 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid | |
| 985 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 986 | .L128_enc_blocks_less_than_1: @ blocks left <= 1 | |
| 987 | ||
| 988 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 989 | mvn $rk10_l, xzr @ rk10_l = 0xffffffffffffffff | |
| 990 | ||
| 991 | mvn $rk10_h, xzr @ rk10_h = 0xffffffffffffffff | |
| 992 | sub $bit_length, $bit_length, #128 @ bit_length -= 128 | |
| 993 | ||
| 994 | neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) | |
| 995 | ||
| 996 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 997 | ||
| 998 | lsr $rk10_h, $rk10_h, $bit_length @ rk10_h is mask for top 64b of last block | |
| 999 | cmp $bit_length, #64 | |
| 1000 | ||
| 1001 | csel $input_l0, $rk10_l, $rk10_h, lt | |
| 1002 | csel $input_h0, $rk10_h, xzr, lt | |
| 1003 | ||
| 1004 | fmov $ctr0d, $input_l0 @ ctr0b is mask for last block | |
| 1005 | ||
| 1006 | fmov $ctr0.d[1], $input_h0 | |
| 1007 | ||
| 1008 | and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits | |
| 1009 | ||
| 1010 | rev64 $res0b, $res1b @ GHASH final block | |
| 1011 | ||
| 1012 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 1013 | ||
| 1014 | mov $t0d, $res0.d[1] @ GHASH final block - mid | |
| 1015 | ||
| 1016 | pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low | |
| 1017 | ld1 { $rk0}, [$output_ptr] @ load existing bytes where the possibly partial last block is to be stored | |
| 1018 | ||
| 1019 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid | |
| 1020 | ||
| 1021 | rev $ctr32w, $rctr32w | |
| 1022 | ||
| 1023 | pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high | |
| 1024 | ||
| 1025 | pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid | |
| 1026 | ||
| 1027 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low | |
| 1028 | ||
| 1029 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high | |
| 1030 | ||
| 1031 | eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid | |
| 1032 | movi $mod_constant.8b, #0xc2 | |
| 1033 | ||
| 1034 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 1035 | ||
| 1036 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 1037 | ||
| 1038 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 1039 | ||
| 1040 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 1041 | ||
| 1042 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 1043 | ||
| 1044 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 1045 | ||
| 1046 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 1047 | ||
| 1048 | pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 1049 | ||
| 1050 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 1051 | ||
| 1052 | bif $res1b, $rk0, $ctr0b @ insert existing bytes in top end of result before storing | |
| 1053 | ||
| 1054 | eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low | |
| 1055 | st1 { $res1b}, [$output_ptr] @ store all 16B | |
| 1056 | ||
| 1057 | str $ctr32w, [$counter, #12] @ store the updated counter | |
| 1058 | ||
| 1059 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 1060 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 1061 | rev64 $acc_lb, $acc_lb | |
| 1062 | mov x0, $len | |
| 1063 | st1 { $acc_l.16b }, [$current_tag] | |
| 1064 | ldp x21, x22, [sp, #16] | |
| 1065 | ldp x23, x24, [sp, #32] | |
| 1066 | ldp d8, d9, [sp, #48] | |
| 1067 | ldp d10, d11, [sp, #64] | |
| 1068 | ldp d12, d13, [sp, #80] | |
| 1069 | ldp d14, d15, [sp, #96] | |
| 1070 | ldp x19, x20, [sp], #112 | |
| 1071 | ret | |
| 1072 | ||
| 1073 | .L128_enc_ret: | |
| 1074 | mov w0, #0x0 | |
| 1075 | ret | |
| 1076 | .size aes_gcm_enc_128_kernel,.-aes_gcm_enc_128_kernel | |
| 1077 | ___ | |
| 1078 | ||
| 1079 | ######################################################################################### | |
| 1080 | # size_t aes_gcm_dec_128_kernel(const unsigned char *in, | |
| 1081 | # size_t len, | |
| 1082 | # unsigned char *out, | |
| 1083 | # const void *key, | |
| 1084 | # unsigned char ivec[16], | |
| 1085 | # u64 *Xi); | |
| 1086 | # | |
| 1087 | $code.=<<___; | |
| 1088 | .global aes_gcm_dec_128_kernel | |
| 1089 | .type aes_gcm_dec_128_kernel,%function | |
| 1090 | .align 4 | |
| 1091 | aes_gcm_dec_128_kernel: | |
| 1092 | cbz x1, .L128_dec_ret | |
| 1093 | stp x19, x20, [sp, #-112]! | |
| 1094 | mov x16, x4 | |
| 1095 | mov x8, x5 | |
| 1096 | stp x21, x22, [sp, #16] | |
| 1097 | stp x23, x24, [sp, #32] | |
| 1098 | stp d8, d9, [sp, #48] | |
| 1099 | stp d10, d11, [sp, #64] | |
| 1100 | stp d12, d13, [sp, #80] | |
| 1101 | stp d14, d15, [sp, #96] | |
| 1102 | ||
| 1103 | lsr $main_end_input_ptr, $bit_length, #3 @ byte_len | |
| 1104 | mov $len, $main_end_input_ptr | |
| 1105 | ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 | |
| 1106 | ||
| 1107 | sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 | |
| 1108 | ldr $rk0q, [$cc, #0] @ load rk0 | |
| 1109 | ||
| 1110 | and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) | |
| 1111 | ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible | |
| 1112 | ||
| 1113 | ldr $h2q, [$current_tag, #64] @ load h2l | h2h | |
| 1114 | ext $h2b, $h2b, $h2b, #8 | |
| 1115 | ||
| 1116 | lsr $rctr32x, $ctr96_t32x, #32 | |
| 1117 | fmov $ctr2d, $ctr96_b64x @ CTR block 2 | |
| 1118 | ||
| 1119 | ldr $rk1q, [$cc, #16] @ load rk1 | |
| 1120 | orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w | |
| 1121 | rev $rctr32w, $rctr32w @ rev_ctr32 | |
| 1122 | ||
| 1123 | fmov $ctr1d, $ctr96_b64x @ CTR block 1 | |
| 1124 | add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 | |
| 1125 | ||
| 1126 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 | |
| 1127 | rev $ctr32w, $rctr32w @ CTR block 1 | |
| 1128 | ||
| 1129 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 | |
| 1130 | ldr $rk2q, [$cc, #32] @ load rk2 | |
| 1131 | add $rctr32w, $rctr32w, #1 @ CTR block 1 | |
| 1132 | ||
| 1133 | fmov $ctr1.d[1], $ctr32x @ CTR block 1 | |
| 1134 | rev $ctr32w, $rctr32w @ CTR block 2 | |
| 1135 | add $rctr32w, $rctr32w, #1 @ CTR block 2 | |
| 1136 | ||
| 1137 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 | |
| 1138 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 | |
| 1139 | ||
| 1140 | fmov $ctr2.d[1], $ctr32x @ CTR block 2 | |
| 1141 | rev $ctr32w, $rctr32w @ CTR block 3 | |
| 1142 | ||
| 1143 | fmov $ctr3d, $ctr96_b64x @ CTR block 3 | |
| 1144 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 | |
| 1145 | add $rctr32w, $rctr32w, #1 @ CTR block 3 | |
| 1146 | ||
| 1147 | fmov $ctr3.d[1], $ctr32x @ CTR block 3 | |
| 1148 | add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr | |
| 1149 | ||
| 1150 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 | |
| 1151 | ldr $rk3q, [$cc, #48] @ load rk3 | |
| 1152 | ||
| 1153 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 | |
| 1154 | ldr $rk6q, [$cc, #96] @ load rk6 | |
| 1155 | ||
| 1156 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 | |
| 1157 | ldr $rk7q, [$cc, #112] @ load rk7 | |
| 1158 | ||
| 1159 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 | |
| 1160 | ldr $rk4q, [$cc, #64] @ load rk4 | |
| 1161 | ||
| 1162 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 | |
| 1163 | ||
| 1164 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 | |
| 1165 | ||
| 1166 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 | |
| 1167 | ldp $rk10_l, $rk10_h, [$cc, #160] @ load rk10 | |
| 1168 | ||
| 1169 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 | |
| 1170 | ld1 { $acc_lb}, [$current_tag] | |
| 1171 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 1172 | rev64 $acc_lb, $acc_lb | |
| 1173 | ||
| 1174 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 | |
| 1175 | ldr $rk5q, [$cc, #80] @ load rk5 | |
| 1176 | ||
| 1177 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 | |
| 1178 | ||
| 1179 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 | |
| 1180 | ||
| 1181 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 | |
| 1182 | ldr $rk9q, [$cc, #144] @ load rk9 | |
| 1183 | ||
| 1184 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 | |
| 1185 | ||
| 1186 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 | |
| 1187 | ||
| 1188 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 | |
| 1189 | ldr $h3q, [$current_tag, #80] @ load h3l | h3h | |
| 1190 | ext $h3b, $h3b, $h3b, #8 | |
| 1191 | ||
| 1192 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 | |
| 1193 | ldr $rk8q, [$cc, #128] @ load rk8 | |
| 1194 | ||
| 1195 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 | |
| 1196 | ||
| 1197 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 | |
| 1198 | ||
| 1199 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 | |
| 1200 | ||
| 1201 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 | |
| 1202 | ||
| 1203 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 | |
| 1204 | ldr $h1q, [$current_tag, #32] @ load h1l | h1h | |
| 1205 | ext $h1b, $h1b, $h1b, #8 | |
| 1206 | ||
| 1207 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 | |
| 1208 | ||
| 1209 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 | |
| 1210 | ||
| 1211 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 | |
| 1212 | ||
| 1213 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 | |
| 1214 | ||
| 1215 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 | |
| 1216 | trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h | |
| 1217 | ||
| 1218 | ldr $h4q, [$current_tag, #112] @ load h4l | h4h | |
| 1219 | ext $h4b, $h4b, $h4b, #8 | |
| 1220 | trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l | |
| 1221 | add $main_end_input_ptr, $main_end_input_ptr, $input_ptr | |
| 1222 | ||
| 1223 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 | |
| 1224 | ||
| 1225 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 | |
| 1226 | ||
| 1227 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 | |
| 1228 | eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k | |
| 1229 | ||
| 1230 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 | |
| 1231 | ||
| 1232 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 | |
| 1233 | trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l | |
| 1234 | ||
| 1235 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 | |
| 1236 | ||
| 1237 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 | |
| 1238 | ||
| 1239 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 | |
| 1240 | trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h | |
| 1241 | ||
| 1242 | aese $ctr2b, $rk9 @ AES block 2 - round 9 | |
| 1243 | ||
| 1244 | aese $ctr3b, $rk9 @ AES block 3 - round 9 | |
| 1245 | ||
| 1246 | aese $ctr0b, $rk9 @ AES block 0 - round 9 | |
| 1247 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks | |
| 1248 | ||
| 1249 | aese $ctr1b, $rk9 @ AES block 1 - round 9 | |
| 1250 | eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k | |
| 1251 | b.ge .L128_dec_tail @ handle tail | |
| 1252 | ||
| 1253 | ldr $res1q, [$input_ptr, #16] @ AES block 1 - load ciphertext | |
| 1254 | ||
| 1255 | ldr $res0q, [$input_ptr, #0] @ AES block 0 - load ciphertext | |
| 1256 | ||
| 1257 | eor $ctr1b, $res1b, $ctr1b @ AES block 1 - result | |
| 1258 | ldr $res2q, [$input_ptr, #32] @ AES block 2 - load ciphertext | |
| 1259 | ||
| 1260 | eor $ctr0b, $res0b, $ctr0b @ AES block 0 - result | |
| 1261 | rev64 $res0b, $res0b @ GHASH block 0 | |
| 1262 | rev $ctr32w, $rctr32w @ CTR block 4 | |
| 1263 | ||
| 1264 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 | |
| 1265 | add $rctr32w, $rctr32w, #1 @ CTR block 4 | |
| 1266 | ldr $res3q, [$input_ptr, #48] @ AES block 3 - load ciphertext | |
| 1267 | ||
| 1268 | rev64 $res1b, $res1b @ GHASH block 1 | |
| 1269 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 1270 | mov $output_l1, $ctr1.d[0] @ AES block 1 - mov low | |
| 1271 | ||
| 1272 | mov $output_h1, $ctr1.d[1] @ AES block 1 - mov high | |
| 1273 | ||
| 1274 | mov $output_l0, $ctr0.d[0] @ AES block 0 - mov low | |
| 1275 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks | |
| 1276 | ||
| 1277 | mov $output_h0, $ctr0.d[1] @ AES block 0 - mov high | |
| 1278 | ||
| 1279 | fmov $ctr0d, $ctr96_b64x @ CTR block 4 | |
| 1280 | ||
| 1281 | fmov $ctr0.d[1], $ctr32x @ CTR block 4 | |
| 1282 | rev $ctr32w, $rctr32w @ CTR block 5 | |
| 1283 | eor $output_l1, $output_l1, $rk10_l @ AES block 1 - round 10 low | |
| 1284 | ||
| 1285 | fmov $ctr1d, $ctr96_b64x @ CTR block 5 | |
| 1286 | add $rctr32w, $rctr32w, #1 @ CTR block 5 | |
| 1287 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 | |
| 1288 | ||
| 1289 | fmov $ctr1.d[1], $ctr32x @ CTR block 5 | |
| 1290 | rev $ctr32w, $rctr32w @ CTR block 6 | |
| 1291 | add $rctr32w, $rctr32w, #1 @ CTR block 6 | |
| 1292 | ||
| 1293 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 | |
| 1294 | ||
| 1295 | eor $output_h1, $output_h1, $rk10_h @ AES block 1 - round 10 high | |
| 1296 | eor $output_l0, $output_l0, $rk10_l @ AES block 0 - round 10 low | |
| 1297 | eor $ctr2b, $res2b, $ctr2b @ AES block 2 - result | |
| 1298 | ||
| 1299 | eor $output_h0, $output_h0, $rk10_h @ AES block 0 - round 10 high | |
| 1300 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 0 - store result | |
| 1301 | ||
| 1302 | stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 1 - store result | |
| 1303 | b.ge .L128_dec_prepretail @ do prepretail | |
| 1304 | ||
| 1305 | .L128_dec_main_loop: @ main loop start | |
| 1306 | eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result | |
| 1307 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 1308 | mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low | |
| 1309 | ||
| 1310 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 1311 | mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high | |
| 1312 | ||
| 1313 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 1314 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 | |
| 1315 | ||
| 1316 | rev64 $res2b, $res2b @ GHASH block 4k+2 | |
| 1317 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 | |
| 1318 | rev $ctr32w, $rctr32w @ CTR block 4k+7 | |
| 1319 | ||
| 1320 | mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low | |
| 1321 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 1322 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 1323 | ||
| 1324 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 1325 | rev64 $res3b, $res3b @ GHASH block 4k+3 | |
| 1326 | ||
| 1327 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 1328 | mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high | |
| 1329 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 | |
| 1330 | ||
| 1331 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 1332 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 | |
| 1333 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 1334 | ||
| 1335 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 1336 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 | |
| 1337 | ||
| 1338 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 1339 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 1340 | ||
| 1341 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 1342 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 1343 | ||
| 1344 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 1345 | ||
| 1346 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 1347 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 1348 | ||
| 1349 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 1350 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 1351 | ||
| 1352 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 1353 | ||
| 1354 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 1355 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 1356 | ||
| 1357 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 1358 | eor $output_l3, $output_l3, $rk10_l @ AES block 4k+3 - round 10 low | |
| 1359 | ||
| 1360 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 1361 | eor $output_h2, $output_h2, $rk10_h @ AES block 4k+2 - round 10 high | |
| 1362 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 1363 | ||
| 1364 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 1365 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 1366 | ||
| 1367 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 1368 | ||
| 1369 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 1370 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 1371 | ||
| 1372 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 1373 | ||
| 1374 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 1375 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 1376 | ||
| 1377 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 1378 | ||
| 1379 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 1380 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 1381 | ||
| 1382 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 1383 | ||
| 1384 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 1385 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 1386 | ||
| 1387 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 1388 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 1389 | ||
| 1390 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 1391 | eor $output_h3, $output_h3, $rk10_h @ AES block 4k+3 - round 10 high | |
| 1392 | ||
| 1393 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 1394 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 1395 | ||
| 1396 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 1397 | eor $output_l2, $output_l2, $rk10_l @ AES block 4k+2 - round 10 low | |
| 1398 | ||
| 1399 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 1400 | movi $mod_constant.8b, #0xc2 | |
| 1401 | ||
| 1402 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 1403 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 1404 | ||
| 1405 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 1406 | ||
| 1407 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 1408 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 1409 | ||
| 1410 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 1411 | stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result | |
| 1412 | ||
| 1413 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 1414 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 1415 | ldr $res0q, [$input_ptr, #0] @ AES block 4k+4 - load ciphertext | |
| 1416 | ||
| 1417 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 1418 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 | |
| 1419 | ||
| 1420 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 1421 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 1422 | ||
| 1423 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 1424 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 1425 | ||
| 1426 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 1427 | stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 1428 | ||
| 1429 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 1430 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 1431 | ||
| 1432 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 1433 | rev $ctr32w, $rctr32w @ CTR block 4k+8 | |
| 1434 | ||
| 1435 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 1436 | ldr $res1q, [$input_ptr, #16] @ AES block 4k+5 - load ciphertext | |
| 1437 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 1438 | ||
| 1439 | aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 | |
| 1440 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 | |
| 1441 | ||
| 1442 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 1443 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 1444 | ||
| 1445 | aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 | |
| 1446 | ||
| 1447 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 1448 | eor $ctr0b, $res0b, $ctr0b @ AES block 4k+4 - result | |
| 1449 | ||
| 1450 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 1451 | ldr $res2q, [$input_ptr, #32] @ AES block 4k+6 - load ciphertext | |
| 1452 | ||
| 1453 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 | |
| 1454 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 1455 | eor $ctr1b, $res1b, $ctr1b @ AES block 4k+5 - result | |
| 1456 | ||
| 1457 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 1458 | ldr $res3q, [$input_ptr, #48] @ AES block 4k+3 - load ciphertext | |
| 1459 | ||
| 1460 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 1461 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 1462 | ||
| 1463 | rev64 $res1b, $res1b @ GHASH block 4k+5 | |
| 1464 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 1465 | mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high | |
| 1466 | ||
| 1467 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 1468 | mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low | |
| 1469 | ||
| 1470 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 1471 | fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 | |
| 1472 | ||
| 1473 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 1474 | fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 | |
| 1475 | rev $ctr32w, $rctr32w @ CTR block 4k+9 | |
| 1476 | ||
| 1477 | aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 | |
| 1478 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 | |
| 1479 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 1480 | ||
| 1481 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 1482 | eor $output_h0, $output_h0, $rk10_h @ AES block 4k+4 - round 10 high | |
| 1483 | ||
| 1484 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 1485 | mov $output_h1, $ctr1.d[1] @ AES block 4k+5 - mov high | |
| 1486 | eor $output_l0, $output_l0, $rk10_l @ AES block 4k+4 - round 10 low | |
| 1487 | ||
| 1488 | eor $ctr2b, $res2b, $ctr2b @ AES block 4k+6 - result | |
| 1489 | mov $output_l1, $ctr1.d[0] @ AES block 4k+5 - mov low | |
| 1490 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 | |
| 1491 | ||
| 1492 | aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 | |
| 1493 | fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 | |
| 1494 | cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL | |
| 1495 | ||
| 1496 | rev64 $res0b, $res0b @ GHASH block 4k+4 | |
| 1497 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 1498 | fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 | |
| 1499 | ||
| 1500 | rev $ctr32w, $rctr32w @ CTR block 4k+10 | |
| 1501 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 | |
| 1502 | ||
| 1503 | eor $output_h1, $output_h1, $rk10_h @ AES block 4k+5 - round 10 high | |
| 1504 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 4k+4 - store result | |
| 1505 | ||
| 1506 | eor $output_l1, $output_l1, $rk10_l @ AES block 4k+5 - round 10 low | |
| 1507 | stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 4k+5 - store result | |
| 1508 | ||
| 1509 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 | |
| 1510 | b.lt L128_dec_main_loop | |
| 1511 | ||
| 1512 | .L128_dec_prepretail: @ PREPRETAIL | |
| 1513 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 1514 | mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low | |
| 1515 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 1516 | ||
| 1517 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 1518 | eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result | |
| 1519 | ||
| 1520 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 1521 | mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high | |
| 1522 | ||
| 1523 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 1524 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 | |
| 1525 | rev64 $res2b, $res2b @ GHASH block 4k+2 | |
| 1526 | ||
| 1527 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 1528 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 | |
| 1529 | ||
| 1530 | rev $ctr32w, $rctr32w @ CTR block 4k+7 | |
| 1531 | mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low | |
| 1532 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 1533 | ||
| 1534 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 1535 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 1536 | mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high | |
| 1537 | ||
| 1538 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 1539 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 1540 | ||
| 1541 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 1542 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 | |
| 1543 | ||
| 1544 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 1545 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 1546 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 | |
| 1547 | ||
| 1548 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 1549 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 | |
| 1550 | ||
| 1551 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 1552 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 1553 | ||
| 1554 | rev64 $res3b, $res3b @ GHASH block 4k+3 | |
| 1555 | ||
| 1556 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 1557 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 1558 | ||
| 1559 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 1560 | ||
| 1561 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 1562 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 1563 | ||
| 1564 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 1565 | ||
| 1566 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 1567 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 1568 | ||
| 1569 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 1570 | ||
| 1571 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 1572 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 1573 | ||
| 1574 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 1575 | ||
| 1576 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 1577 | ||
| 1578 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 1579 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 1580 | ||
| 1581 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 1582 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 1583 | ||
| 1584 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 1585 | ||
| 1586 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 1587 | movi $mod_constant.8b, #0xc2 | |
| 1588 | ||
| 1589 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 1590 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 1591 | ||
| 1592 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 1593 | ||
| 1594 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 1595 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 1596 | ||
| 1597 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 1598 | eor $output_l3, $output_l3, $rk10_l @ AES block 4k+3 - round 10 low | |
| 1599 | ||
| 1600 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 1601 | eor $output_l2, $output_l2, $rk10_l @ AES block 4k+2 - round 10 low | |
| 1602 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 1603 | ||
| 1604 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 1605 | ||
| 1606 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 1607 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 1608 | ||
| 1609 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 1610 | ||
| 1611 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 1612 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 1613 | ||
| 1614 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 1615 | ||
| 1616 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 1617 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 1618 | ||
| 1619 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 1620 | ||
| 1621 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 1622 | ||
| 1623 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 1624 | ||
| 1625 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 1626 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 1627 | ||
| 1628 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 1629 | ||
| 1630 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 1631 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 1632 | ||
| 1633 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 1634 | ||
| 1635 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 1636 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 1637 | ||
| 1638 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 1639 | ||
| 1640 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 1641 | ||
| 1642 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 1643 | ||
| 1644 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 1645 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 1646 | ||
| 1647 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 1648 | ||
| 1649 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 1650 | ||
| 1651 | aese $ctr1b, $rk9 @ AES block 4k+5 - round 9 | |
| 1652 | ||
| 1653 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 1654 | eor $output_h3, $output_h3, $rk10_h @ AES block 4k+3 - round 10 high | |
| 1655 | ||
| 1656 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 1657 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 1658 | ||
| 1659 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 1660 | ||
| 1661 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 1662 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 1663 | ||
| 1664 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 1665 | ||
| 1666 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 1667 | eor $output_h2, $output_h2, $rk10_h @ AES block 4k+2 - round 10 high | |
| 1668 | ||
| 1669 | aese $ctr0b, $rk9 @ AES block 4k+4 - round 9 | |
| 1670 | stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result | |
| 1671 | ||
| 1672 | aese $ctr2b, $rk9 @ AES block 4k+6 - round 9 | |
| 1673 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 | |
| 1674 | stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 1675 | ||
| 1676 | aese $ctr3b, $rk9 @ AES block 4k+7 - round 9 | |
| 1677 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 1678 | .L128_dec_tail: @ TAIL | |
| 1679 | ||
| 1680 | sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process | |
| 1681 | ld1 { $res1b}, [$input_ptr], #16 @ AES block 4k+4 - load ciphertext | |
| 1682 | ||
| 1683 | eor $ctr0b, $res1b, $ctr0b @ AES block 4k+4 - result | |
| 1684 | ||
| 1685 | mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high | |
| 1686 | ||
| 1687 | mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low | |
| 1688 | ||
| 1689 | cmp $main_end_input_ptr, #48 | |
| 1690 | ||
| 1691 | eor $output_h0, $output_h0, $rk10_h @ AES block 4k+4 - round 10 high | |
| 1692 | ||
| 1693 | ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag | |
| 1694 | eor $output_l0, $output_l0, $rk10_l @ AES block 4k+4 - round 10 low | |
| 1695 | b.gt .L128_dec_blocks_more_than_3 | |
| 1696 | ||
| 1697 | mov $ctr3b, $ctr2b | |
| 1698 | sub $rctr32w, $rctr32w, #1 | |
| 1699 | movi $acc_l.8b, #0 | |
| 1700 | ||
| 1701 | movi $acc_h.8b, #0 | |
| 1702 | mov $ctr2b, $ctr1b | |
| 1703 | ||
| 1704 | movi $acc_m.8b, #0 | |
| 1705 | cmp $main_end_input_ptr, #32 | |
| 1706 | b.gt .L128_dec_blocks_more_than_2 | |
| 1707 | ||
| 1708 | cmp $main_end_input_ptr, #16 | |
| 1709 | ||
| 1710 | mov $ctr3b, $ctr1b | |
| 1711 | sub $rctr32w, $rctr32w, #1 | |
| 1712 | b.gt .L128_dec_blocks_more_than_1 | |
| 1713 | ||
| 1714 | sub $rctr32w, $rctr32w, #1 | |
| 1715 | b .L128_dec_blocks_less_than_1 | |
| 1716 | .L128_dec_blocks_more_than_3: @ blocks left > 3 | |
| 1717 | rev64 $res0b, $res1b @ GHASH final-3 block | |
| 1718 | ld1 { $res1b}, [$input_ptr], #16 @ AES final-2 block - load ciphertext | |
| 1719 | ||
| 1720 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 1721 | ||
| 1722 | mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid | |
| 1723 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-3 block - store result | |
| 1724 | eor $ctr0b, $res1b, $ctr1b @ AES final-2 block - result | |
| 1725 | ||
| 1726 | mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid | |
| 1727 | mov $output_h0, $ctr0.d[1] @ AES final-2 block - mov high | |
| 1728 | ||
| 1729 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low | |
| 1730 | mov $output_l0, $ctr0.d[0] @ AES final-2 block - mov low | |
| 1731 | ||
| 1732 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high | |
| 1733 | ||
| 1734 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid | |
| 1735 | ||
| 1736 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 1737 | eor $output_h0, $output_h0, $rk10_h @ AES final-2 block - round 10 high | |
| 1738 | ||
| 1739 | pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid | |
| 1740 | eor $output_l0, $output_l0, $rk10_l @ AES final-2 block - round 10 low | |
| 1741 | .L128_dec_blocks_more_than_2: @ blocks left > 2 | |
| 1742 | ||
| 1743 | rev64 $res0b, $res1b @ GHASH final-2 block | |
| 1744 | ld1 { $res1b}, [$input_ptr], #16 @ AES final-1 block - load ciphertext | |
| 1745 | ||
| 1746 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 1747 | ||
| 1748 | eor $ctr0b, $res1b, $ctr2b @ AES final-1 block - result | |
| 1749 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-2 block - store result | |
| 1750 | ||
| 1751 | mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid | |
| 1752 | ||
| 1753 | pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low | |
| 1754 | ||
| 1755 | pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high | |
| 1756 | mov $output_l0, $ctr0.d[0] @ AES final-1 block - mov low | |
| 1757 | ||
| 1758 | mov $output_h0, $ctr0.d[1] @ AES final-1 block - mov high | |
| 1759 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid | |
| 1760 | ||
| 1761 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 1762 | ||
| 1763 | pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid | |
| 1764 | ||
| 1765 | eor $output_l0, $output_l0, $rk10_l @ AES final-1 block - round 10 low | |
| 1766 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low | |
| 1767 | ||
| 1768 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high | |
| 1769 | ||
| 1770 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid | |
| 1771 | eor $output_h0, $output_h0, $rk10_h @ AES final-1 block - round 10 high | |
| 1772 | .L128_dec_blocks_more_than_1: @ blocks left > 1 | |
| 1773 | ||
| 1774 | rev64 $res0b, $res1b @ GHASH final-1 block | |
| 1775 | ||
| 1776 | ld1 { $res1b}, [$input_ptr], #16 @ AES final block - load ciphertext | |
| 1777 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 1778 | ||
| 1779 | mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid | |
| 1780 | ||
| 1781 | eor $ctr0b, $res1b, $ctr3b @ AES final block - result | |
| 1782 | ||
| 1783 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid | |
| 1784 | ||
| 1785 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-1 block - store result | |
| 1786 | mov $output_l0, $ctr0.d[0] @ AES final block - mov low | |
| 1787 | ||
| 1788 | mov $output_h0, $ctr0.d[1] @ AES final block - mov high | |
| 1789 | ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid | |
| 1790 | ||
| 1791 | pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low | |
| 1792 | ||
| 1793 | pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high | |
| 1794 | ||
| 1795 | pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid | |
| 1796 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 1797 | ||
| 1798 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low | |
| 1799 | ||
| 1800 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high | |
| 1801 | eor $output_h0, $output_h0, $rk10_h @ AES final block - round 10 high | |
| 1802 | ||
| 1803 | eor $output_l0, $output_l0, $rk10_l @ AES final block - round 10 low | |
| 1804 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid | |
| 1805 | .L128_dec_blocks_less_than_1: @ blocks left <= 1 | |
| 1806 | ||
| 1807 | mvn $rk10_h, xzr @ rk10_h = 0xffffffffffffffff | |
| 1808 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 1809 | ||
| 1810 | mvn $rk10_l, xzr @ rk10_l = 0xffffffffffffffff | |
| 1811 | sub $bit_length, $bit_length, #128 @ bit_length -= 128 | |
| 1812 | ||
| 1813 | neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) | |
| 1814 | ||
| 1815 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 1816 | ||
| 1817 | lsr $rk10_h, $rk10_h, $bit_length @ rk10_h is mask for top 64b of last block | |
| 1818 | cmp $bit_length, #64 | |
| 1819 | ||
| 1820 | csel $ctr96_b64x, $rk10_h, xzr, lt | |
| 1821 | csel $ctr32x, $rk10_l, $rk10_h, lt | |
| 1822 | ||
| 1823 | fmov $ctr0d, $ctr32x @ ctr0b is mask for last block | |
| 1824 | ||
| 1825 | mov $ctr0.d[1], $ctr96_b64x | |
| 1826 | ||
| 1827 | and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits | |
| 1828 | ||
| 1829 | rev64 $res0b, $res1b @ GHASH final block | |
| 1830 | ||
| 1831 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 1832 | ||
| 1833 | ldp $end_input_ptr, $main_end_input_ptr, [$output_ptr] @ load existing bytes we need to not overwrite | |
| 1834 | ||
| 1835 | and $output_h0, $output_h0, $ctr96_b64x | |
| 1836 | ||
| 1837 | pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high | |
| 1838 | mov $t0d, $res0.d[1] @ GHASH final block - mid | |
| 1839 | ||
| 1840 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid | |
| 1841 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high | |
| 1842 | ||
| 1843 | pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid | |
| 1844 | ||
| 1845 | pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low | |
| 1846 | bic $end_input_ptr, $end_input_ptr, $ctr32x @ mask out low existing bytes | |
| 1847 | and $output_l0, $output_l0, $ctr32x | |
| 1848 | ||
| 1849 | rev $ctr32w, $rctr32w | |
| 1850 | ||
| 1851 | eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid | |
| 1852 | movi $mod_constant.8b, #0xc2 | |
| 1853 | ||
| 1854 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low | |
| 1855 | ||
| 1856 | bic $main_end_input_ptr, $main_end_input_ptr, $ctr96_b64x @ mask out high existing bytes | |
| 1857 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 1858 | ||
| 1859 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 1860 | ||
| 1861 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 1862 | ||
| 1863 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 1864 | ||
| 1865 | orr $output_l0, $output_l0, $end_input_ptr | |
| 1866 | str $ctr32w, [$counter, #12] @ store the updated counter | |
| 1867 | ||
| 1868 | orr $output_h0, $output_h0, $main_end_input_ptr | |
| 1869 | stp $output_l0, $output_h0, [$output_ptr] | |
| 1870 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 1871 | ||
| 1872 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 1873 | ||
| 1874 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 1875 | ||
| 1876 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 1877 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 1878 | ||
| 1879 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 1880 | ||
| 1881 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 1882 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 1883 | rev64 $acc_lb, $acc_lb | |
| 1884 | mov x0, $len | |
| 1885 | st1 { $acc_l.16b }, [$current_tag] | |
| 1886 | ||
| 1887 | ldp x21, x22, [sp, #16] | |
| 1888 | ldp x23, x24, [sp, #32] | |
| 1889 | ldp d8, d9, [sp, #48] | |
| 1890 | ldp d10, d11, [sp, #64] | |
| 1891 | ldp d12, d13, [sp, #80] | |
| 1892 | ldp d14, d15, [sp, #96] | |
| 1893 | ldp x19, x20, [sp], #112 | |
| 1894 | ret | |
| 1895 | ||
| 1896 | .L128_dec_ret: | |
| 1897 | mov w0, #0x0 | |
| 1898 | ret | |
| 1899 | .size aes_gcm_dec_128_kernel,.-aes_gcm_dec_128_kernel | |
| 1900 | ___ | |
| 1901 | } | |
| 1902 | ||
| 1903 | { | |
| 1904 | my ($end_input_ptr,$main_end_input_ptr,$input_l0,$input_h0)=map("x$_",(4..7)); | |
| 1905 | my ($input_l1,$input_h1,$input_l2,$input_h2,$input_l3,$input_h3)=map("x$_",(19..24)); | |
| 1906 | my ($output_l1,$output_h1,$output_l2,$output_h2,$output_l3,$output_h3)=map("x$_",(19..24)); | |
| 1907 | my ($output_l0,$output_h0)=map("x$_",(6..7)); | |
| 1908 | ||
| 1909 | my $ctr32w="w9"; | |
| 1910 | my ($ctr32x,$ctr96_b64x,$ctr96_t32x,$rctr32x,$rk12_l,$rk12_h,$len)=map("x$_",(9..15)); | |
| 1911 | my ($ctr96_t32w,$rctr32w)=map("w$_",(11..12)); | |
| 1912 | ||
| 1913 | my ($ctr0b,$ctr1b,$ctr2b,$ctr3b,$res0b,$res1b,$res2b,$res3b)=map("v$_.16b",(0..7)); | |
| 1914 | my ($ctr0,$ctr1,$ctr2,$ctr3,$res0,$res1,$res2,$res3)=map("v$_",(0..7)); | |
| 1915 | my ($ctr0d,$ctr1d,$ctr2d,$ctr3d,$res0d,$res1d,$res2d,$res3d)=map("d$_",(0..7)); | |
| 1916 | my ($res0q,$res1q,$res2q,$res3q)=map("q$_",(4..7)); | |
| 1917 | ||
| 1918 | my ($acc_hb,$acc_mb,$acc_lb)=map("v$_.16b",(9..11)); | |
| 1919 | my ($acc_h,$acc_m,$acc_l)=map("v$_",(9..11)); | |
| 1920 | my ($acc_hd,$acc_md,$acc_ld)=map("d$_",(9..11)); | |
| 1921 | ||
| 1922 | my ($h1,$h2,$h3,$h4,$h12k,$h34k)=map("v$_",(12..17)); | |
| 1923 | my ($h1q,$h2q,$h3q,$h4q)=map("q$_",(12..15)); | |
| 1924 | my ($h1b,$h2b,$h3b,$h4b)=map("v$_.16b",(12..15)); | |
| 1925 | ||
| 1926 | my $t0="v8"; | |
| 1927 | my $t0d="d8"; | |
| 1928 | my $t3="v4"; | |
| 1929 | my $t3d="d4"; | |
| 1930 | ||
| 1931 | my ($t1,$t2)=map("v$_",(30..31)); | |
| 1932 | my ($t1d,$t2d)=map("d$_",(30..31)); | |
| 1933 | ||
| 1934 | my $t4="v30"; | |
| 1935 | my $t4d="d30"; | |
| 1936 | my $t5="v8"; | |
| 1937 | my $t5d="d8"; | |
| 1938 | my $t6="v31"; | |
| 1939 | my $t6d="d31"; | |
| 1940 | ||
| 1941 | my $t7="v5"; | |
| 1942 | my $t7d="d5"; | |
| 1943 | my $t8="v6"; | |
| 1944 | my $t8d="d6"; | |
| 1945 | my $t9="v30"; | |
| 1946 | my $t9d="d30"; | |
| 1947 | ||
| 1948 | my ($ctr_t0,$ctr_t1,$ctr_t2,$ctr_t3)=map("v$_",(4..7)); | |
| 1949 | my ($ctr_t0d,$ctr_t1d,$ctr_t2d,$ctr_t3d)=map("d$_",(4..7)); | |
| 1950 | my ($ctr_t0b,$ctr_t1b,$ctr_t2b,$ctr_t3b)=map("v$_.16b",(4..7)); | |
| 1951 | ||
| 1952 | my $mod_constantd="d8"; | |
| 1953 | my $mod_constant="v8"; | |
| 1954 | my $mod_t="v31"; | |
| 1955 | ||
| 1956 | my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7,$rk8,$rk9,$rk10,$rk11)=map("v$_.16b",(18..29)); | |
| 1957 | my ($rk0q,$rk1q,$rk2q,$rk3q,$rk4q,$rk5q,$rk6q,$rk7q,$rk8q,$rk9q,$rk10q,$rk11q)=map("q$_",(18..29)); | |
| 1958 | my $rk2q1="v20.1q"; | |
| 1959 | my $rk3q1="v21.1q"; | |
| 1960 | my $rk4v="v22"; | |
| 1961 | my $rk4d="d22"; | |
| 1962 | ||
| 1963 | ######################################################################################### | |
| 1964 | # size_t aes_gcm_enc_192_kernel(const unsigned char *in, | |
| 1965 | # size_t len, | |
| 1966 | # unsigned char *out, | |
| 1967 | # const void *key, | |
| 1968 | # unsigned char ivec[16], | |
| 1969 | # u64 *Xi); | |
| 1970 | # | |
| 1971 | $code.=<<___; | |
| 1972 | .global aes_gcm_enc_192_kernel | |
| 1973 | .type aes_gcm_enc_192_kernel,%function | |
| 1974 | .align 4 | |
| 1975 | aes_gcm_enc_192_kernel: | |
| 1976 | cbz x1, .L192_enc_ret | |
| 1977 | stp x19, x20, [sp, #-112]! | |
| 1978 | mov x16, x4 | |
| 1979 | mov x8, x5 | |
| 1980 | stp x21, x22, [sp, #16] | |
| 1981 | stp x23, x24, [sp, #32] | |
| 1982 | stp d8, d9, [sp, #48] | |
| 1983 | stp d10, d11, [sp, #64] | |
| 1984 | stp d12, d13, [sp, #80] | |
| 1985 | stp d14, d15, [sp, #96] | |
| 1986 | ||
| 1987 | ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 | |
| 1988 | ||
| 1989 | ldr $rk5q, [$cc, #80] @ load rk5 | |
| 1990 | ||
| 1991 | ldr $rk4q, [$cc, #64] @ load rk4 | |
| 1992 | ||
| 1993 | ldr $rk8q, [$cc, #128] @ load rk8 | |
| 1994 | ||
| 1995 | lsr $rctr32x, $ctr96_t32x, #32 | |
| 1996 | ldr $rk6q, [$cc, #96] @ load rk6 | |
| 1997 | orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w | |
| 1998 | ||
| 1999 | ldr $rk7q, [$cc, #112] @ load rk7 | |
| 2000 | rev $rctr32w, $rctr32w @ rev_ctr32 | |
| 2001 | ||
| 2002 | add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 | |
| 2003 | fmov $ctr3d, $ctr96_b64x @ CTR block 3 | |
| 2004 | ||
| 2005 | rev $ctr32w, $rctr32w @ CTR block 1 | |
| 2006 | add $rctr32w, $rctr32w, #1 @ CTR block 1 | |
| 2007 | fmov $ctr1d, $ctr96_b64x @ CTR block 1 | |
| 2008 | ||
| 2009 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 | |
| 2010 | ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible | |
| 2011 | ||
| 2012 | fmov $ctr1.d[1], $ctr32x @ CTR block 1 | |
| 2013 | rev $ctr32w, $rctr32w @ CTR block 2 | |
| 2014 | add $rctr32w, $rctr32w, #1 @ CTR block 2 | |
| 2015 | ||
| 2016 | fmov $ctr2d, $ctr96_b64x @ CTR block 2 | |
| 2017 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 | |
| 2018 | ||
| 2019 | fmov $ctr2.d[1], $ctr32x @ CTR block 2 | |
| 2020 | rev $ctr32w, $rctr32w @ CTR block 3 | |
| 2021 | ||
| 2022 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 | |
| 2023 | ldr $rk0q, [$cc, #0] @ load rk0 | |
| 2024 | ||
| 2025 | fmov $ctr3.d[1], $ctr32x @ CTR block 3 | |
| 2026 | ||
| 2027 | ldr $rk3q, [$cc, #48] @ load rk3 | |
| 2028 | ||
| 2029 | ldp $rk12_l, $rk12_h, [$cc, #192] @ load rk12 | |
| 2030 | ||
| 2031 | ldr $rk1q, [$cc, #16] @ load rk1 | |
| 2032 | ||
| 2033 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 | |
| 2034 | ld1 { $acc_lb}, [$current_tag] | |
| 2035 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 2036 | rev64 $acc_lb, $acc_lb | |
| 2037 | ||
| 2038 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 | |
| 2039 | ldr $rk11q, [$cc, #176] @ load rk11 | |
| 2040 | ||
| 2041 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 | |
| 2042 | ldr $h4q, [$current_tag, #112] @ load h4l | h4h | |
| 2043 | ext $h4b, $h4b, $h4b, #8 | |
| 2044 | ||
| 2045 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 | |
| 2046 | ldr $rk2q, [$cc, #32] @ load rk2 | |
| 2047 | ||
| 2048 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 | |
| 2049 | ldr $rk10q, [$cc, #160] @ load rk10 | |
| 2050 | ||
| 2051 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 | |
| 2052 | ldr $h1q, [$current_tag, #32] @ load h1l | h1h | |
| 2053 | ext $h1b, $h1b, $h1b, #8 | |
| 2054 | ||
| 2055 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 | |
| 2056 | ldr $rk9q, [$cc, #144] @ load rk9 | |
| 2057 | ||
| 2058 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 | |
| 2059 | ldr $h3q, [$current_tag, #80] @ load h3l | h3h | |
| 2060 | ext $h3b, $h3b, $h3b, #8 | |
| 2061 | ||
| 2062 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 | |
| 2063 | ||
| 2064 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 | |
| 2065 | ||
| 2066 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 | |
| 2067 | ||
| 2068 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 | |
| 2069 | trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h | |
| 2070 | ||
| 2071 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 | |
| 2072 | ||
| 2073 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 | |
| 2074 | trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l | |
| 2075 | ||
| 2076 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 | |
| 2077 | ||
| 2078 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 | |
| 2079 | ||
| 2080 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 | |
| 2081 | ||
| 2082 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 | |
| 2083 | ||
| 2084 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 | |
| 2085 | ||
| 2086 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 | |
| 2087 | ||
| 2088 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 | |
| 2089 | ||
| 2090 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 | |
| 2091 | ||
| 2092 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 | |
| 2093 | ||
| 2094 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 | |
| 2095 | ||
| 2096 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 | |
| 2097 | ||
| 2098 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 | |
| 2099 | ldr $h2q, [$current_tag, #64] @ load h2l | h2h | |
| 2100 | ext $h2b, $h2b, $h2b, #8 | |
| 2101 | ||
| 2102 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 | |
| 2103 | ||
| 2104 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 | |
| 2105 | ||
| 2106 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 | |
| 2107 | ||
| 2108 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 | |
| 2109 | trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l | |
| 2110 | ||
| 2111 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 | |
| 2112 | ||
| 2113 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 | |
| 2114 | ||
| 2115 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 | |
| 2116 | trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h | |
| 2117 | ||
| 2118 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 | |
| 2119 | ||
| 2120 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 | |
| 2121 | ||
| 2122 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 | |
| 2123 | ||
| 2124 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 | |
| 2125 | ||
| 2126 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 | |
| 2127 | ||
| 2128 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 | |
| 2129 | ||
| 2130 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 | |
| 2131 | ||
| 2132 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 | |
| 2133 | ||
| 2134 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 | |
| 2135 | ||
| 2136 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 | |
| 2137 | lsr $main_end_input_ptr, $bit_length, #3 @ byte_len | |
| 2138 | mov $len, $main_end_input_ptr | |
| 2139 | ||
| 2140 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 | |
| 2141 | sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 | |
| 2142 | ||
| 2143 | eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k | |
| 2144 | and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) | |
| 2145 | ||
| 2146 | eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k | |
| 2147 | ||
| 2148 | aese $ctr2b, $rk11 @ AES block 2 - round 11 | |
| 2149 | add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr | |
| 2150 | add $main_end_input_ptr, $main_end_input_ptr, $input_ptr | |
| 2151 | ||
| 2152 | aese $ctr1b, $rk11 @ AES block 1 - round 11 | |
| 2153 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks | |
| 2154 | ||
| 2155 | aese $ctr0b, $rk11 @ AES block 0 - round 11 | |
| 2156 | add $rctr32w, $rctr32w, #1 @ CTR block 3 | |
| 2157 | ||
| 2158 | aese $ctr3b, $rk11 @ AES block 3 - round 11 | |
| 2159 | b.ge .L192_enc_tail @ handle tail | |
| 2160 | ||
| 2161 | rev $ctr32w, $rctr32w @ CTR block 4 | |
| 2162 | ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 0 - load plaintext | |
| 2163 | ||
| 2164 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 | |
| 2165 | ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 2 - load plaintext | |
| 2166 | ||
| 2167 | ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 3 - load plaintext | |
| 2168 | ||
| 2169 | ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 1 - load plaintext | |
| 2170 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 2171 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks | |
| 2172 | ||
| 2173 | eor $input_l0, $input_l0, $rk12_l @ AES block 0 - round 12 low | |
| 2174 | ||
| 2175 | eor $input_h0, $input_h0, $rk12_h @ AES block 0 - round 12 high | |
| 2176 | eor $input_h2, $input_h2, $rk12_h @ AES block 2 - round 12 high | |
| 2177 | fmov $ctr_t0d, $input_l0 @ AES block 0 - mov low | |
| 2178 | ||
| 2179 | eor $input_h3, $input_h3, $rk12_h @ AES block 3 - round 12 high | |
| 2180 | fmov $ctr_t0.d[1], $input_h0 @ AES block 0 - mov high | |
| 2181 | ||
| 2182 | eor $input_l2, $input_l2, $rk12_l @ AES block 2 - round 12 low | |
| 2183 | eor $input_l1, $input_l1, $rk12_l @ AES block 1 - round 12 low | |
| 2184 | ||
| 2185 | fmov $ctr_t1d, $input_l1 @ AES block 1 - mov low | |
| 2186 | eor $input_h1, $input_h1, $rk12_h @ AES block 1 - round 12 high | |
| 2187 | ||
| 2188 | fmov $ctr_t1.d[1], $input_h1 @ AES block 1 - mov high | |
| 2189 | ||
| 2190 | eor $input_l3, $input_l3, $rk12_l @ AES block 3 - round 12 low | |
| 2191 | fmov $ctr_t2d, $input_l2 @ AES block 2 - mov low | |
| 2192 | ||
| 2193 | add $rctr32w, $rctr32w, #1 @ CTR block 4 | |
| 2194 | eor $res0b, $ctr_t0b, $ctr0b @ AES block 0 - result | |
| 2195 | fmov $ctr0d, $ctr96_b64x @ CTR block 4 | |
| 2196 | ||
| 2197 | fmov $ctr0.d[1], $ctr32x @ CTR block 4 | |
| 2198 | rev $ctr32w, $rctr32w @ CTR block 5 | |
| 2199 | ||
| 2200 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 | |
| 2201 | add $rctr32w, $rctr32w, #1 @ CTR block 5 | |
| 2202 | ||
| 2203 | fmov $ctr_t3d, $input_l3 @ AES block 3 - mov low | |
| 2204 | st1 { $res0b}, [$output_ptr], #16 @ AES block 0 - store result | |
| 2205 | ||
| 2206 | fmov $ctr_t2.d[1], $input_h2 @ AES block 2 - mov high | |
| 2207 | ||
| 2208 | eor $res1b, $ctr_t1b, $ctr1b @ AES block 1 - result | |
| 2209 | fmov $ctr1d, $ctr96_b64x @ CTR block 5 | |
| 2210 | st1 { $res1b}, [$output_ptr], #16 @ AES block 1 - store result | |
| 2211 | ||
| 2212 | fmov $ctr_t3.d[1], $input_h3 @ AES block 3 - mov high | |
| 2213 | ||
| 2214 | fmov $ctr1.d[1], $ctr32x @ CTR block 5 | |
| 2215 | rev $ctr32w, $rctr32w @ CTR block 6 | |
| 2216 | ||
| 2217 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 | |
| 2218 | ||
| 2219 | add $rctr32w, $rctr32w, #1 @ CTR block 6 | |
| 2220 | eor $res2b, $ctr_t2b, $ctr2b @ AES block 2 - result | |
| 2221 | fmov $ctr2d, $ctr96_b64x @ CTR block 6 | |
| 2222 | ||
| 2223 | fmov $ctr2.d[1], $ctr32x @ CTR block 6 | |
| 2224 | rev $ctr32w, $rctr32w @ CTR block 7 | |
| 2225 | ||
| 2226 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 7 | |
| 2227 | st1 { $res2b}, [$output_ptr], #16 @ AES block 2 - store result | |
| 2228 | ||
| 2229 | eor $res3b, $ctr_t3b, $ctr3b @ AES block 3 - result | |
| 2230 | st1 { $res3b}, [$output_ptr], #16 @ AES block 3 - store result | |
| 2231 | b.ge .L192_enc_prepretail @ do prepretail | |
| 2232 | ||
| 2233 | .L192_enc_main_loop: @ main loop start | |
| 2234 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 2235 | rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) | |
| 2236 | ||
| 2237 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 2238 | ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 4k+5 - load plaintext | |
| 2239 | ||
| 2240 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 2241 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 | |
| 2242 | rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) | |
| 2243 | ||
| 2244 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 2245 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 | |
| 2246 | ||
| 2247 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 2248 | rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) | |
| 2249 | ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 4k+6 - load plaintext | |
| 2250 | ||
| 2251 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 2252 | ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 4k+3 - load plaintext | |
| 2253 | ||
| 2254 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 2255 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 2256 | ||
| 2257 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 2258 | ||
| 2259 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 2260 | rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) | |
| 2261 | ||
| 2262 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 2263 | eor $input_h3, $input_h3, $rk12_h @ AES block 4k+3 - round 12 high | |
| 2264 | ||
| 2265 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 2266 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 2267 | ||
| 2268 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 2269 | ||
| 2270 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 2271 | eor $input_l2, $input_l2, $rk12_l @ AES block 4k+6 - round 12 low | |
| 2272 | ||
| 2273 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 2274 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 2275 | ||
| 2276 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 2277 | eor $input_l1, $input_l1, $rk12_l @ AES block 4k+5 - round 12 low | |
| 2278 | ||
| 2279 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 2280 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 2281 | ||
| 2282 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 2283 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 2284 | ||
| 2285 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 2286 | ||
| 2287 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 2288 | ||
| 2289 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 2290 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 2291 | ||
| 2292 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 2293 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 2294 | ||
| 2295 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 2296 | ||
| 2297 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 2298 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 2299 | ||
| 2300 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 2301 | ||
| 2302 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 2303 | eor $input_h1, $input_h1, $rk12_h @ AES block 4k+5 - round 12 high | |
| 2304 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 2305 | ||
| 2306 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 2307 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 | |
| 2308 | ||
| 2309 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 2310 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 2311 | ||
| 2312 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 2313 | eor $input_h2, $input_h2, $rk12_h @ AES block 4k+6 - round 12 high | |
| 2314 | ||
| 2315 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 2316 | eor $input_l3, $input_l3, $rk12_l @ AES block 4k+3 - round 12 low | |
| 2317 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 2318 | ||
| 2319 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 2320 | rev $ctr32w, $rctr32w @ CTR block 4k+8 | |
| 2321 | ||
| 2322 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 2323 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 | |
| 2324 | ||
| 2325 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 2326 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 2327 | ||
| 2328 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 2329 | ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 4k+4 - load plaintext | |
| 2330 | ||
| 2331 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 2332 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 2333 | ||
| 2334 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 2335 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 2336 | ||
| 2337 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 2338 | movi $mod_constant.8b, #0xc2 | |
| 2339 | ||
| 2340 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 2341 | eor $input_h0, $input_h0, $rk12_h @ AES block 4k+4 - round 12 high | |
| 2342 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 2343 | ||
| 2344 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 2345 | eor $input_l0, $input_l0, $rk12_l @ AES block 4k+4 - round 12 low | |
| 2346 | ||
| 2347 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 2348 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 2349 | ||
| 2350 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 2351 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 2352 | ||
| 2353 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 2354 | fmov $ctr_t1d, $input_l1 @ AES block 4k+5 - mov low | |
| 2355 | ||
| 2356 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 2357 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 2358 | ||
| 2359 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 2360 | fmov $ctr_t1.d[1], $input_h1 @ AES block 4k+5 - mov high | |
| 2361 | ||
| 2362 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 2363 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 2364 | ||
| 2365 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 2366 | cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL | |
| 2367 | fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low | |
| 2368 | ||
| 2369 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 2370 | fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high | |
| 2371 | ||
| 2372 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 2373 | fmov $ctr_t3d, $input_l3 @ AES block 4k+3 - mov low | |
| 2374 | ||
| 2375 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 2376 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 2377 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 | |
| 2378 | ||
| 2379 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 2380 | fmov $ctr_t3.d[1], $input_h3 @ AES block 4k+3 - mov high | |
| 2381 | ||
| 2382 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 2383 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 2384 | fmov $ctr_t2d, $input_l2 @ AES block 4k+6 - mov low | |
| 2385 | ||
| 2386 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 2387 | ||
| 2388 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 2389 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 2390 | ||
| 2391 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 2392 | ||
| 2393 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 2394 | ||
| 2395 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 2396 | ||
| 2397 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 2398 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 2399 | ||
| 2400 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 2401 | ||
| 2402 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 2403 | ||
| 2404 | aese $ctr0b, $rk11 @ AES block 4k+4 - round 11 | |
| 2405 | ||
| 2406 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 2407 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 2408 | ||
| 2409 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 2410 | ||
| 2411 | eor $res0b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result | |
| 2412 | fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 | |
| 2413 | ||
| 2414 | aese $ctr1b, $rk11 @ AES block 4k+5 - round 11 | |
| 2415 | fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 | |
| 2416 | rev $ctr32w, $rctr32w @ CTR block 4k+9 | |
| 2417 | ||
| 2418 | pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 2419 | fmov $ctr_t2.d[1], $input_h2 @ AES block 4k+6 - mov high | |
| 2420 | st1 { $res0b}, [$output_ptr], #16 @ AES block 4k+4 - store result | |
| 2421 | ||
| 2422 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 2423 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 | |
| 2424 | ||
| 2425 | eor $res1b, $ctr_t1b, $ctr1b @ AES block 4k+5 - result | |
| 2426 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 | |
| 2427 | fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 | |
| 2428 | ||
| 2429 | aese $ctr2b, $rk11 @ AES block 4k+6 - round 11 | |
| 2430 | fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 | |
| 2431 | rev $ctr32w, $rctr32w @ CTR block 4k+10 | |
| 2432 | ||
| 2433 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 | |
| 2434 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 2435 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 | |
| 2436 | ||
| 2437 | st1 { $res1b}, [$output_ptr], #16 @ AES block 4k+5 - store result | |
| 2438 | eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low | |
| 2439 | ||
| 2440 | aese $ctr3b, $rk11 @ AES block 4k+7 - round 11 | |
| 2441 | eor $res2b, $ctr_t2b, $ctr2b @ AES block 4k+6 - result | |
| 2442 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+10 | |
| 2443 | ||
| 2444 | st1 { $res2b}, [$output_ptr], #16 @ AES block 4k+6 - store result | |
| 2445 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+10 | |
| 2446 | rev $ctr32w, $rctr32w @ CTR block 4k+11 | |
| 2447 | ||
| 2448 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 2449 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+11 | |
| 2450 | ||
| 2451 | eor $res3b, $ctr_t3b, $ctr3b @ AES block 4k+3 - result | |
| 2452 | st1 { $res3b}, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 2453 | b.lt .L192_enc_main_loop | |
| 2454 | ||
| 2455 | .L192_enc_prepretail: @ PREPRETAIL | |
| 2456 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 2457 | rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) | |
| 2458 | ||
| 2459 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 | |
| 2460 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 2461 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 | |
| 2462 | ||
| 2463 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 2464 | rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) | |
| 2465 | ||
| 2466 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 2467 | ||
| 2468 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 | |
| 2469 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 2470 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 2471 | ||
| 2472 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 2473 | rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) | |
| 2474 | ||
| 2475 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 2476 | ||
| 2477 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 2478 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 2479 | ||
| 2480 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 2481 | rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) | |
| 2482 | ||
| 2483 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 2484 | ||
| 2485 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 2486 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 2487 | ||
| 2488 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 2489 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 2490 | ||
| 2491 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 2492 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 2493 | ||
| 2494 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 2495 | ||
| 2496 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 2497 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 2498 | ||
| 2499 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 2500 | ||
| 2501 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 2502 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 2503 | ||
| 2504 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 2505 | ||
| 2506 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 2507 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 2508 | ||
| 2509 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 2510 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 2511 | ||
| 2512 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 2513 | ||
| 2514 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 2515 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 2516 | ||
| 2517 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 2518 | ||
| 2519 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 2520 | ||
| 2521 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 2522 | ||
| 2523 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 2524 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 2525 | ||
| 2526 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 2527 | ||
| 2528 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 2529 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 2530 | ||
| 2531 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 2532 | ||
| 2533 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 2534 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 2535 | ||
| 2536 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 2537 | ||
| 2538 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 2539 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 2540 | ||
| 2541 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 2542 | ||
| 2543 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 2544 | movi $mod_constant.8b, #0xc2 | |
| 2545 | ||
| 2546 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 2547 | ||
| 2548 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 2549 | ||
| 2550 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 2551 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 2552 | ||
| 2553 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 2554 | ||
| 2555 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 2556 | ||
| 2557 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 2558 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 2559 | ||
| 2560 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 2561 | ||
| 2562 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 2563 | eor $acc_mb, $acc_mb, $acc_hb @ karatsuba tidy up | |
| 2564 | ||
| 2565 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 2566 | ||
| 2567 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 2568 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 2569 | ||
| 2570 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 2571 | ||
| 2572 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 2573 | eor $acc_mb, $acc_mb, $acc_lb | |
| 2574 | ||
| 2575 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 2576 | ||
| 2577 | pmull $t1.1q, $acc_h.1d, $mod_constant.1d | |
| 2578 | ||
| 2579 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 2580 | ext $acc_hb, $acc_hb, $acc_hb, #8 | |
| 2581 | ||
| 2582 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 2583 | ||
| 2584 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 2585 | eor $acc_mb, $acc_mb, $t1.16b | |
| 2586 | ||
| 2587 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 2588 | ||
| 2589 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 2590 | ||
| 2591 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 2592 | ||
| 2593 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 2594 | eor $acc_mb, $acc_mb, $acc_hb | |
| 2595 | ||
| 2596 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 2597 | ||
| 2598 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 2599 | ||
| 2600 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 2601 | ||
| 2602 | pmull $t1.1q, $acc_m.1d, $mod_constant.1d | |
| 2603 | ||
| 2604 | ext $acc_mb, $acc_mb, $acc_mb, #8 | |
| 2605 | ||
| 2606 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 2607 | ||
| 2608 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 2609 | ||
| 2610 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 2611 | ||
| 2612 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 2613 | eor $acc_lb, $acc_lb, $t1.16b | |
| 2614 | ||
| 2615 | aese $ctr0b, $rk11 @ AES block 4k+4 - round 11 | |
| 2616 | ||
| 2617 | aese $ctr3b, $rk11 @ AES block 4k+7 - round 11 | |
| 2618 | ||
| 2619 | aese $ctr2b, $rk11 @ AES block 4k+6 - round 11 | |
| 2620 | ||
| 2621 | aese $ctr1b, $rk11 @ AES block 4k+5 - round 11 | |
| 2622 | eor $acc_lb, $acc_lb, $acc_mb | |
| 2623 | .L192_enc_tail: @ TAIL | |
| 2624 | ||
| 2625 | sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process | |
| 2626 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES block 4k+4 - load plaintext | |
| 2627 | ||
| 2628 | eor $input_l0, $input_l0, $rk12_l @ AES block 4k+4 - round 12 low | |
| 2629 | eor $input_h0, $input_h0, $rk12_h @ AES block 4k+4 - round 12 high | |
| 2630 | ||
| 2631 | fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low | |
| 2632 | ||
| 2633 | fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high | |
| 2634 | cmp $main_end_input_ptr, #48 | |
| 2635 | ||
| 2636 | eor $res1b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result | |
| 2637 | ||
| 2638 | ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag | |
| 2639 | b.gt .L192_enc_blocks_more_than_3 | |
| 2640 | ||
| 2641 | sub $rctr32w, $rctr32w, #1 | |
| 2642 | movi $acc_m.8b, #0 | |
| 2643 | ||
| 2644 | mov $ctr3b, $ctr2b | |
| 2645 | movi $acc_h.8b, #0 | |
| 2646 | cmp $main_end_input_ptr, #32 | |
| 2647 | ||
| 2648 | mov $ctr2b, $ctr1b | |
| 2649 | movi $acc_l.8b, #0 | |
| 2650 | b.gt .L192_enc_blocks_more_than_2 | |
| 2651 | ||
| 2652 | sub $rctr32w, $rctr32w, #1 | |
| 2653 | ||
| 2654 | mov $ctr3b, $ctr1b | |
| 2655 | cmp $main_end_input_ptr, #16 | |
| 2656 | b.gt .L192_enc_blocks_more_than_1 | |
| 2657 | ||
| 2658 | sub $rctr32w, $rctr32w, #1 | |
| 2659 | b .L192_enc_blocks_less_than_1 | |
| 2660 | .L192_enc_blocks_more_than_3: @ blocks left > 3 | |
| 2661 | st1 { $res1b}, [$output_ptr], #16 @ AES final-3 block - store result | |
| 2662 | ||
| 2663 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-2 block - load input low & high | |
| 2664 | ||
| 2665 | rev64 $res0b, $res1b @ GHASH final-3 block | |
| 2666 | ||
| 2667 | eor $input_l0, $input_l0, $rk12_l @ AES final-2 block - round 12 low | |
| 2668 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 2669 | ||
| 2670 | eor $input_h0, $input_h0, $rk12_h @ AES final-2 block - round 12 high | |
| 2671 | fmov $res1d, $input_l0 @ AES final-2 block - mov low | |
| 2672 | ||
| 2673 | fmov $res1.d[1], $input_h0 @ AES final-2 block - mov high | |
| 2674 | ||
| 2675 | mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid | |
| 2676 | ||
| 2677 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low | |
| 2678 | ||
| 2679 | mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid | |
| 2680 | ||
| 2681 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid | |
| 2682 | ||
| 2683 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 2684 | ||
| 2685 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high | |
| 2686 | ||
| 2687 | pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid | |
| 2688 | eor $res1b, $res1b, $ctr1b @ AES final-2 block - result | |
| 2689 | .L192_enc_blocks_more_than_2: @ blocks left > 2 | |
| 2690 | ||
| 2691 | st1 { $res1b}, [$output_ptr], #16 @ AES final-2 block - store result | |
| 2692 | ||
| 2693 | rev64 $res0b, $res1b @ GHASH final-2 block | |
| 2694 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-1 block - load input low & high | |
| 2695 | ||
| 2696 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 2697 | ||
| 2698 | eor $input_h0, $input_h0, $rk12_h @ AES final-1 block - round 12 high | |
| 2699 | ||
| 2700 | pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high | |
| 2701 | mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid | |
| 2702 | ||
| 2703 | pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low | |
| 2704 | eor $input_l0, $input_l0, $rk12_l @ AES final-1 block - round 12 low | |
| 2705 | ||
| 2706 | fmov $res1d, $input_l0 @ AES final-1 block - mov low | |
| 2707 | ||
| 2708 | fmov $res1.d[1], $input_h0 @ AES final-1 block - mov high | |
| 2709 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high | |
| 2710 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid | |
| 2711 | ||
| 2712 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low | |
| 2713 | ||
| 2714 | pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid | |
| 2715 | ||
| 2716 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 2717 | ||
| 2718 | eor $res1b, $res1b, $ctr2b @ AES final-1 block - result | |
| 2719 | ||
| 2720 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid | |
| 2721 | .L192_enc_blocks_more_than_1: @ blocks left > 1 | |
| 2722 | ||
| 2723 | st1 { $res1b}, [$output_ptr], #16 @ AES final-1 block - store result | |
| 2724 | ||
| 2725 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final block - load input low & high | |
| 2726 | ||
| 2727 | rev64 $res0b, $res1b @ GHASH final-1 block | |
| 2728 | ||
| 2729 | eor $input_l0, $input_l0, $rk12_l @ AES final block - round 12 low | |
| 2730 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 2731 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 2732 | ||
| 2733 | mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid | |
| 2734 | ||
| 2735 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid | |
| 2736 | eor $input_h0, $input_h0, $rk12_h @ AES final block - round 12 high | |
| 2737 | fmov $res1d, $input_l0 @ AES final block - mov low | |
| 2738 | ||
| 2739 | pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high | |
| 2740 | fmov $res1.d[1], $input_h0 @ AES final block - mov high | |
| 2741 | ||
| 2742 | ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid | |
| 2743 | ||
| 2744 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high | |
| 2745 | ||
| 2746 | pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low | |
| 2747 | ||
| 2748 | pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid | |
| 2749 | ||
| 2750 | eor $res1b, $res1b, $ctr3b @ AES final block - result | |
| 2751 | ||
| 2752 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low | |
| 2753 | ||
| 2754 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid | |
| 2755 | .L192_enc_blocks_less_than_1: @ blocks left <= 1 | |
| 2756 | ||
| 2757 | ld1 { $rk0}, [$output_ptr] @ load existing bytes where the possibly partial last block is to be stored | |
| 2758 | rev $ctr32w, $rctr32w | |
| 2759 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 2760 | ||
| 2761 | sub $bit_length, $bit_length, #128 @ bit_length -= 128 | |
| 2762 | mvn $rk12_h, xzr @ rk12_h = 0xffffffffffffffff | |
| 2763 | ||
| 2764 | neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) | |
| 2765 | mvn $rk12_l, xzr @ rk12_l = 0xffffffffffffffff | |
| 2766 | ||
| 2767 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 2768 | ||
| 2769 | lsr $rk12_h, $rk12_h, $bit_length @ rk12_h is mask for top 64b of last block | |
| 2770 | cmp $bit_length, #64 | |
| 2771 | ||
| 2772 | csel $input_l0, $rk12_l, $rk12_h, lt | |
| 2773 | csel $input_h0, $rk12_h, xzr, lt | |
| 2774 | ||
| 2775 | fmov $ctr0d, $input_l0 @ ctr0b is mask for last block | |
| 2776 | ||
| 2777 | fmov $ctr0.d[1], $input_h0 | |
| 2778 | ||
| 2779 | and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits | |
| 2780 | ||
| 2781 | rev64 $res0b, $res1b @ GHASH final block | |
| 2782 | ||
| 2783 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 2784 | ||
| 2785 | mov $t0d, $res0.d[1] @ GHASH final block - mid | |
| 2786 | ||
| 2787 | pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low | |
| 2788 | ||
| 2789 | pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high | |
| 2790 | ||
| 2791 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid | |
| 2792 | ||
| 2793 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low | |
| 2794 | ||
| 2795 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high | |
| 2796 | ||
| 2797 | pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid | |
| 2798 | ||
| 2799 | eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid | |
| 2800 | movi $mod_constant.8b, #0xc2 | |
| 2801 | ||
| 2802 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 2803 | ||
| 2804 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 2805 | ||
| 2806 | bif $res1b, $rk0, $ctr0b @ insert existing bytes in top end of result before storing | |
| 2807 | ||
| 2808 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 2809 | ||
| 2810 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 2811 | ||
| 2812 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 2813 | ||
| 2814 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 2815 | ||
| 2816 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 2817 | ||
| 2818 | pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 2819 | ||
| 2820 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 2821 | ||
| 2822 | eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low | |
| 2823 | str $ctr32w, [$counter, #12] @ store the updated counter | |
| 2824 | ||
| 2825 | st1 { $res1b}, [$output_ptr] @ store all 16B | |
| 2826 | ||
| 2827 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 2828 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 2829 | rev64 $acc_lb, $acc_lb | |
| 2830 | mov x0, $len | |
| 2831 | st1 { $acc_l.16b }, [$current_tag] | |
| 2832 | ||
| 2833 | ldp x21, x22, [sp, #16] | |
| 2834 | ldp x23, x24, [sp, #32] | |
| 2835 | ldp d8, d9, [sp, #48] | |
| 2836 | ldp d10, d11, [sp, #64] | |
| 2837 | ldp d12, d13, [sp, #80] | |
| 2838 | ldp d14, d15, [sp, #96] | |
| 2839 | ldp x19, x20, [sp], #112 | |
| 2840 | ret | |
| 2841 | ||
| 2842 | .L192_enc_ret: | |
| 2843 | mov w0, #0x0 | |
| 2844 | ret | |
| 2845 | .size aes_gcm_enc_192_kernel,.-aes_gcm_enc_192_kernel | |
| 2846 | ___ | |
| 2847 | ||
| 2848 | ######################################################################################### | |
| 2849 | # size_t aes_gcm_dec_192_kernel(const unsigned char *in, | |
| 2850 | # size_t len, | |
| 2851 | # unsigned char *out, | |
| 2852 | # const void *key, | |
| 2853 | # unsigned char ivec[16], | |
| 2854 | # u64 *Xi); | |
| 2855 | # | |
| 2856 | $code.=<<___; | |
| 2857 | .global aes_gcm_dec_192_kernel | |
| 2858 | .type aes_gcm_dec_192_kernel,%function | |
| 2859 | .align 4 | |
| 2860 | aes_gcm_dec_192_kernel: | |
| 2861 | cbz x1, .L192_dec_ret | |
| 2862 | stp x19, x20, [sp, #-112]! | |
| 2863 | mov x16, x4 | |
| 2864 | mov x8, x5 | |
| 2865 | stp x21, x22, [sp, #16] | |
| 2866 | stp x23, x24, [sp, #32] | |
| 2867 | stp d8, d9, [sp, #48] | |
| 2868 | stp d10, d11, [sp, #64] | |
| 2869 | stp d12, d13, [sp, #80] | |
| 2870 | stp d14, d15, [sp, #96] | |
| 2871 | ||
| 2872 | add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr | |
| 2873 | ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 | |
| 2874 | ||
| 2875 | ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible | |
| 2876 | ||
| 2877 | ldr $rk0q, [$cc, #0] @ load rk0 | |
| 2878 | ||
| 2879 | lsr $main_end_input_ptr, $bit_length, #3 @ byte_len | |
| 2880 | mov $len, $main_end_input_ptr | |
| 2881 | ldr $rk2q, [$cc, #32] @ load rk2 | |
| 2882 | ||
| 2883 | lsr $rctr32x, $ctr96_t32x, #32 | |
| 2884 | orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w | |
| 2885 | fmov $ctr3d, $ctr96_b64x @ CTR block 3 | |
| 2886 | ||
| 2887 | rev $rctr32w, $rctr32w @ rev_ctr32 | |
| 2888 | fmov $ctr1d, $ctr96_b64x @ CTR block 1 | |
| 2889 | ||
| 2890 | add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 | |
| 2891 | ldr $rk1q, [$cc, #16] @ load rk1 | |
| 2892 | ||
| 2893 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 | |
| 2894 | rev $ctr32w, $rctr32w @ CTR block 1 | |
| 2895 | ||
| 2896 | add $rctr32w, $rctr32w, #1 @ CTR block 1 | |
| 2897 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 | |
| 2898 | ldr $rk3q, [$cc, #48] @ load rk3 | |
| 2899 | ||
| 2900 | fmov $ctr1.d[1], $ctr32x @ CTR block 1 | |
| 2901 | rev $ctr32w, $rctr32w @ CTR block 2 | |
| 2902 | add $rctr32w, $rctr32w, #1 @ CTR block 2 | |
| 2903 | ||
| 2904 | fmov $ctr2d, $ctr96_b64x @ CTR block 2 | |
| 2905 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 | |
| 2906 | ||
| 2907 | fmov $ctr2.d[1], $ctr32x @ CTR block 2 | |
| 2908 | rev $ctr32w, $rctr32w @ CTR block 3 | |
| 2909 | ||
| 2910 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 | |
| 2911 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 | |
| 2912 | ||
| 2913 | fmov $ctr3.d[1], $ctr32x @ CTR block 3 | |
| 2914 | ||
| 2915 | ldr $rk8q, [$cc, #128] @ load rk8 | |
| 2916 | ||
| 2917 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 | |
| 2918 | ||
| 2919 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 | |
| 2920 | ldr $rk11q, [$cc, #176] @ load rk11 | |
| 2921 | ||
| 2922 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 | |
| 2923 | ldr $h4q, [$current_tag, #112] @ load h4l | h4h | |
| 2924 | ext $h4b, $h4b, $h4b, #8 | |
| 2925 | ||
| 2926 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 | |
| 2927 | ldr $h2q, [$current_tag, #64] @ load h2l | h2h | |
| 2928 | ext $h2b, $h2b, $h2b, #8 | |
| 2929 | ||
| 2930 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 | |
| 2931 | ldr $h3q, [$current_tag, #80] @ load h3l | h3h | |
| 2932 | ext $h3b, $h3b, $h3b, #8 | |
| 2933 | ||
| 2934 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 | |
| 2935 | ldp $rk12_l, $rk12_h, [$cc, #192] @ load rk12 | |
| 2936 | ||
| 2937 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 | |
| 2938 | ldr $h1q, [$current_tag, #32] @ load h1l | h1h | |
| 2939 | ext $h1b, $h1b, $h1b, #8 | |
| 2940 | ||
| 2941 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 | |
| 2942 | ldr $rk10q, [$cc, #160] @ load rk10 | |
| 2943 | ||
| 2944 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 | |
| 2945 | ldr $rk9q, [$cc, #144] @ load rk9 | |
| 2946 | ||
| 2947 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 | |
| 2948 | ldr $rk7q, [$cc, #112] @ load rk7 | |
| 2949 | ||
| 2950 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 | |
| 2951 | ldr $rk4q, [$cc, #64] @ load rk4 | |
| 2952 | ||
| 2953 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 | |
| 2954 | ld1 { $acc_lb}, [$current_tag] | |
| 2955 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 2956 | rev64 $acc_lb, $acc_lb | |
| 2957 | ||
| 2958 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 | |
| 2959 | add $rctr32w, $rctr32w, #1 @ CTR block 3 | |
| 2960 | ||
| 2961 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 | |
| 2962 | trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h | |
| 2963 | ||
| 2964 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 | |
| 2965 | ldr $rk5q, [$cc, #80] @ load rk5 | |
| 2966 | ||
| 2967 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 | |
| 2968 | trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l | |
| 2969 | ||
| 2970 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 | |
| 2971 | ||
| 2972 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 | |
| 2973 | trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l | |
| 2974 | ||
| 2975 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 | |
| 2976 | ldr $rk6q, [$cc, #96] @ load rk6 | |
| 2977 | ||
| 2978 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 | |
| 2979 | ||
| 2980 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 | |
| 2981 | ||
| 2982 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 | |
| 2983 | ||
| 2984 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 | |
| 2985 | ||
| 2986 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 | |
| 2987 | ||
| 2988 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 | |
| 2989 | ||
| 2990 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 | |
| 2991 | ||
| 2992 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 | |
| 2993 | ||
| 2994 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 | |
| 2995 | ||
| 2996 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 | |
| 2997 | ||
| 2998 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 | |
| 2999 | ||
| 3000 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 | |
| 3001 | ||
| 3002 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 | |
| 3003 | ||
| 3004 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 | |
| 3005 | ||
| 3006 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 | |
| 3007 | ||
| 3008 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 | |
| 3009 | sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 | |
| 3010 | ||
| 3011 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 | |
| 3012 | and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) | |
| 3013 | ||
| 3014 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 | |
| 3015 | add $main_end_input_ptr, $main_end_input_ptr, $input_ptr | |
| 3016 | ||
| 3017 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 | |
| 3018 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks | |
| 3019 | ||
| 3020 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 | |
| 3021 | trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h | |
| 3022 | ||
| 3023 | aese $ctr3b, $rk11 @ AES block 3 - round 11 | |
| 3024 | ||
| 3025 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 | |
| 3026 | ||
| 3027 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 | |
| 3028 | ||
| 3029 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 | |
| 3030 | eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k | |
| 3031 | ||
| 3032 | aese $ctr2b, $rk11 @ AES block 2 - round 11 | |
| 3033 | ||
| 3034 | aese $ctr1b, $rk11 @ AES block 1 - round 11 | |
| 3035 | eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k | |
| 3036 | ||
| 3037 | aese $ctr0b, $rk11 @ AES block 0 - round 11 | |
| 3038 | b.ge .L192_dec_tail @ handle tail | |
| 3039 | ||
| 3040 | ldr $res1q, [$input_ptr, #16] @ AES block 1 - load ciphertext | |
| 3041 | ||
| 3042 | ldr $res0q, [$input_ptr, #0] @ AES block 0 - load ciphertext | |
| 3043 | ||
| 3044 | eor $ctr1b, $res1b, $ctr1b @ AES block 1 - result | |
| 3045 | ||
| 3046 | eor $ctr0b, $res0b, $ctr0b @ AES block 0 - result | |
| 3047 | rev $ctr32w, $rctr32w @ CTR block 4 | |
| 3048 | ldr $res3q, [$input_ptr, #48] @ AES block 3 - load ciphertext | |
| 3049 | ||
| 3050 | ldr $res2q, [$input_ptr, #32] @ AES block 2 - load ciphertext | |
| 3051 | ||
| 3052 | mov $output_l1, $ctr1.d[0] @ AES block 1 - mov low | |
| 3053 | ||
| 3054 | mov $output_h1, $ctr1.d[1] @ AES block 1 - mov high | |
| 3055 | ||
| 3056 | mov $output_l0, $ctr0.d[0] @ AES block 0 - mov low | |
| 3057 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 | |
| 3058 | add $rctr32w, $rctr32w, #1 @ CTR block 4 | |
| 3059 | ||
| 3060 | mov $output_h0, $ctr0.d[1] @ AES block 0 - mov high | |
| 3061 | rev64 $res0b, $res0b @ GHASH block 0 | |
| 3062 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 3063 | ||
| 3064 | fmov $ctr0d, $ctr96_b64x @ CTR block 4 | |
| 3065 | rev64 $res1b, $res1b @ GHASH block 1 | |
| 3066 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks | |
| 3067 | ||
| 3068 | eor $output_l1, $output_l1, $rk12_l @ AES block 1 - round 12 low | |
| 3069 | fmov $ctr0.d[1], $ctr32x @ CTR block 4 | |
| 3070 | rev $ctr32w, $rctr32w @ CTR block 5 | |
| 3071 | ||
| 3072 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 | |
| 3073 | fmov $ctr1d, $ctr96_b64x @ CTR block 5 | |
| 3074 | eor $output_h1, $output_h1, $rk12_h @ AES block 1 - round 12 high | |
| 3075 | ||
| 3076 | add $rctr32w, $rctr32w, #1 @ CTR block 5 | |
| 3077 | fmov $ctr1.d[1], $ctr32x @ CTR block 5 | |
| 3078 | eor $output_l0, $output_l0, $rk12_l @ AES block 0 - round 12 low | |
| 3079 | ||
| 3080 | rev $ctr32w, $rctr32w @ CTR block 6 | |
| 3081 | eor $output_h0, $output_h0, $rk12_h @ AES block 0 - round 12 high | |
| 3082 | ||
| 3083 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 0 - store result | |
| 3084 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 | |
| 3085 | ||
| 3086 | stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 1 - store result | |
| 3087 | ||
| 3088 | add $rctr32w, $rctr32w, #1 @ CTR block 6 | |
| 3089 | eor $ctr2b, $res2b, $ctr2b @ AES block 2 - result | |
| 3090 | b.ge .L192_dec_prepretail @ do prepretail | |
| 3091 | ||
| 3092 | .L192_dec_main_loop: @ main loop start | |
| 3093 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 3094 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 3095 | ||
| 3096 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 3097 | mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low | |
| 3098 | ||
| 3099 | mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high | |
| 3100 | eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result | |
| 3101 | rev64 $res3b, $res3b @ GHASH block 4k+3 | |
| 3102 | ||
| 3103 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 3104 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 | |
| 3105 | ||
| 3106 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 3107 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 3108 | ||
| 3109 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 3110 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 | |
| 3111 | ||
| 3112 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 3113 | mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high | |
| 3114 | ||
| 3115 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 3116 | mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low | |
| 3117 | ||
| 3118 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 3119 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 | |
| 3120 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 3121 | ||
| 3122 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 3123 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 3124 | rev $ctr32w, $rctr32w @ CTR block 4k+7 | |
| 3125 | ||
| 3126 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 3127 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 | |
| 3128 | ||
| 3129 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 | |
| 3130 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 3131 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 3132 | ||
| 3133 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 3134 | ||
| 3135 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 3136 | eor $output_h2, $output_h2, $rk12_h @ AES block 4k+2 - round 12 high | |
| 3137 | ||
| 3138 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 3139 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 3140 | ||
| 3141 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 3142 | ||
| 3143 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 3144 | rev64 $res2b, $res2b @ GHASH block 4k+2 | |
| 3145 | ||
| 3146 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 3147 | ||
| 3148 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 3149 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 3150 | eor $output_l2, $output_l2, $rk12_l @ AES block 4k+2 - round 12 low | |
| 3151 | ||
| 3152 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 3153 | ||
| 3154 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 3155 | ||
| 3156 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 3157 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 3158 | ||
| 3159 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 3160 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 3161 | ||
| 3162 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 3163 | ||
| 3164 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 3165 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 3166 | ||
| 3167 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 3168 | ||
| 3169 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 3170 | ||
| 3171 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 3172 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 3173 | ||
| 3174 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 3175 | ||
| 3176 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 3177 | ||
| 3178 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 3179 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 3180 | ||
| 3181 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 3182 | ||
| 3183 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 3184 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 3185 | ||
| 3186 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 3187 | ||
| 3188 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 3189 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 3190 | ||
| 3191 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 3192 | ||
| 3193 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 3194 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 3195 | ||
| 3196 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 3197 | ||
| 3198 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 3199 | movi $mod_constant.8b, #0xc2 | |
| 3200 | ||
| 3201 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 3202 | ||
| 3203 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 3204 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 3205 | ||
| 3206 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 3207 | ||
| 3208 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 3209 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 3210 | ||
| 3211 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 3212 | ||
| 3213 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 3214 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 3215 | ||
| 3216 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 3217 | ||
| 3218 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 3219 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 3220 | ||
| 3221 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 3222 | ||
| 3223 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 3224 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 3225 | ||
| 3226 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 3227 | ||
| 3228 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 3229 | ldr $res2q, [$input_ptr, #32] @ AES block 4k+6 - load ciphertext | |
| 3230 | ||
| 3231 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 3232 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 3233 | ||
| 3234 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 3235 | ldr $res3q, [$input_ptr, #48] @ AES block 4k+7 - load ciphertext | |
| 3236 | eor $output_l3, $output_l3, $rk12_l @ AES block 4k+3 - round 12 low | |
| 3237 | ||
| 3238 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 3239 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 3240 | ||
| 3241 | aese $ctr0b, $rk11 @ AES block 4k+4 - round 11 | |
| 3242 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 | |
| 3243 | ||
| 3244 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 3245 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 3246 | ||
| 3247 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 3248 | ldr $res0q, [$input_ptr, #0] @ AES block 4k+4 - load ciphertext | |
| 3249 | ||
| 3250 | aese $ctr1b, $rk11 @ AES block 4k+5 - round 11 | |
| 3251 | ldr $res1q, [$input_ptr, #16] @ AES block 4k+5 - load ciphertext | |
| 3252 | rev $ctr32w, $rctr32w @ CTR block 4k+8 | |
| 3253 | ||
| 3254 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 3255 | stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result | |
| 3256 | ||
| 3257 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 3258 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 3259 | ||
| 3260 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 3261 | cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL | |
| 3262 | ||
| 3263 | eor $ctr0b, $res0b, $ctr0b @ AES block 4k+4 - result | |
| 3264 | eor $output_h3, $output_h3, $rk12_h @ AES block 4k+3 - round 12 high | |
| 3265 | eor $ctr1b, $res1b, $ctr1b @ AES block 4k+5 - result | |
| 3266 | ||
| 3267 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 3268 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 | |
| 3269 | ||
| 3270 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 3271 | ||
| 3272 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 3273 | mov $output_l1, $ctr1.d[0] @ AES block 4k+5 - mov low | |
| 3274 | ||
| 3275 | mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low | |
| 3276 | stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 3277 | rev64 $res1b, $res1b @ GHASH block 4k+5 | |
| 3278 | ||
| 3279 | aese $ctr2b, $rk11 @ AES block 4k+6 - round 11 | |
| 3280 | mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high | |
| 3281 | ||
| 3282 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 3283 | mov $output_h1, $ctr1.d[1] @ AES block 4k+5 - mov high | |
| 3284 | ||
| 3285 | fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 | |
| 3286 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 | |
| 3287 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 3288 | ||
| 3289 | eor $ctr2b, $res2b, $ctr2b @ AES block 4k+6 - result | |
| 3290 | fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 | |
| 3291 | rev $ctr32w, $rctr32w @ CTR block 4k+9 | |
| 3292 | ||
| 3293 | eor $output_l0, $output_l0, $rk12_l @ AES block 4k+4 - round 12 low | |
| 3294 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 | |
| 3295 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 3296 | ||
| 3297 | fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 | |
| 3298 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 | |
| 3299 | eor $output_l1, $output_l1, $rk12_l @ AES block 4k+5 - round 12 low | |
| 3300 | ||
| 3301 | fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 | |
| 3302 | rev $ctr32w, $rctr32w @ CTR block 4k+10 | |
| 3303 | eor $output_h1, $output_h1, $rk12_h @ AES block 4k+5 - round 12 high | |
| 3304 | ||
| 3305 | eor $output_h0, $output_h0, $rk12_h @ AES block 4k+4 - round 12 high | |
| 3306 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 4k+4 - store result | |
| 3307 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 3308 | ||
| 3309 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 | |
| 3310 | rev64 $res0b, $res0b @ GHASH block 4k+4 | |
| 3311 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 | |
| 3312 | ||
| 3313 | aese $ctr3b, $rk11 @ AES block 4k+7 - round 11 | |
| 3314 | stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 4k+5 - store result | |
| 3315 | b.lt .L192_dec_main_loop | |
| 3316 | ||
| 3317 | .L192_dec_prepretail: @ PREPRETAIL | |
| 3318 | mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high | |
| 3319 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 3320 | eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result | |
| 3321 | ||
| 3322 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 3323 | mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low | |
| 3324 | ||
| 3325 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 3326 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 3327 | ||
| 3328 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 3329 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 | |
| 3330 | ||
| 3331 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 3332 | mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low | |
| 3333 | ||
| 3334 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 3335 | mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high | |
| 3336 | ||
| 3337 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 3338 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 3339 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 | |
| 3340 | ||
| 3341 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 3342 | rev64 $res2b, $res2b @ GHASH block 4k+2 | |
| 3343 | ||
| 3344 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 3345 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 | |
| 3346 | rev $ctr32w, $rctr32w @ CTR block 4k+7 | |
| 3347 | ||
| 3348 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 | |
| 3349 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 3350 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 3351 | ||
| 3352 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 3353 | eor $output_h3, $output_h3, $rk12_h @ AES block 4k+3 - round 12 high | |
| 3354 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 | |
| 3355 | ||
| 3356 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 3357 | eor $output_l2, $output_l2, $rk12_l @ AES block 4k+2 - round 12 low | |
| 3358 | ||
| 3359 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 3360 | eor $output_h2, $output_h2, $rk12_h @ AES block 4k+2 - round 12 high | |
| 3361 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 3362 | ||
| 3363 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 3364 | eor $output_l3, $output_l3, $rk12_l @ AES block 4k+3 - round 12 low | |
| 3365 | stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result | |
| 3366 | ||
| 3367 | rev64 $res3b, $res3b @ GHASH block 4k+3 | |
| 3368 | stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 3369 | ||
| 3370 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 3371 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 3372 | ||
| 3373 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 3374 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 | |
| 3375 | ||
| 3376 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 3377 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 3378 | ||
| 3379 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 3380 | ||
| 3381 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 3382 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 3383 | ||
| 3384 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 3385 | ||
| 3386 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 3387 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 3388 | ||
| 3389 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 3390 | ||
| 3391 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 3392 | ||
| 3393 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 3394 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 3395 | ||
| 3396 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 3397 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 3398 | ||
| 3399 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 3400 | ||
| 3401 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 3402 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 3403 | ||
| 3404 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 3405 | ||
| 3406 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 3407 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 3408 | ||
| 3409 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 3410 | ||
| 3411 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 3412 | movi $mod_constant.8b, #0xc2 | |
| 3413 | ||
| 3414 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 3415 | ||
| 3416 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 3417 | ||
| 3418 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 3419 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 3420 | ||
| 3421 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 3422 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 3423 | ||
| 3424 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 3425 | ||
| 3426 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 3427 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 3428 | ||
| 3429 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 3430 | ||
| 3431 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 3432 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 3433 | ||
| 3434 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 3435 | ||
| 3436 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 3437 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 3438 | ||
| 3439 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 3440 | ||
| 3441 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 3442 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 3443 | ||
| 3444 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 3445 | ||
| 3446 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 3447 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 3448 | ||
| 3449 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 3450 | ||
| 3451 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 3452 | ||
| 3453 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 3454 | ||
| 3455 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 3456 | ||
| 3457 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 3458 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 3459 | ||
| 3460 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 3461 | ||
| 3462 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 3463 | ||
| 3464 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 3465 | ||
| 3466 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 3467 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 3468 | ||
| 3469 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 3470 | ||
| 3471 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 3472 | ||
| 3473 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 3474 | ||
| 3475 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 3476 | ||
| 3477 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 3478 | ||
| 3479 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 3480 | ||
| 3481 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 3482 | ||
| 3483 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 3484 | ||
| 3485 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 3486 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 3487 | ||
| 3488 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 3489 | ||
| 3490 | aese $ctr0b, $rk11 | |
| 3491 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 3492 | ||
| 3493 | aese $ctr2b, $rk11 | |
| 3494 | ||
| 3495 | aese $ctr1b, $rk11 | |
| 3496 | ||
| 3497 | aese $ctr3b, $rk11 | |
| 3498 | ||
| 3499 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 3500 | .L192_dec_tail: @ TAIL | |
| 3501 | ||
| 3502 | sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process | |
| 3503 | ld1 { $res1b}, [$input_ptr], #16 @ AES block 4k+4 - load ciphertext | |
| 3504 | ||
| 3505 | eor $ctr0b, $res1b, $ctr0b @ AES block 4k+4 - result | |
| 3506 | ||
| 3507 | mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high | |
| 3508 | ||
| 3509 | mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low | |
| 3510 | ||
| 3511 | ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag | |
| 3512 | ||
| 3513 | cmp $main_end_input_ptr, #48 | |
| 3514 | ||
| 3515 | eor $output_h0, $output_h0, $rk12_h @ AES block 4k+4 - round 12 high | |
| 3516 | ||
| 3517 | eor $output_l0, $output_l0, $rk12_l @ AES block 4k+4 - round 12 low | |
| 3518 | b.gt .L192_dec_blocks_more_than_3 | |
| 3519 | ||
| 3520 | movi $acc_l.8b, #0 | |
| 3521 | movi $acc_h.8b, #0 | |
| 3522 | ||
| 3523 | mov $ctr3b, $ctr2b | |
| 3524 | mov $ctr2b, $ctr1b | |
| 3525 | sub $rctr32w, $rctr32w, #1 | |
| 3526 | ||
| 3527 | movi $acc_m.8b, #0 | |
| 3528 | cmp $main_end_input_ptr, #32 | |
| 3529 | b.gt .L192_dec_blocks_more_than_2 | |
| 3530 | ||
| 3531 | mov $ctr3b, $ctr1b | |
| 3532 | cmp $main_end_input_ptr, #16 | |
| 3533 | sub $rctr32w, $rctr32w, #1 | |
| 3534 | ||
| 3535 | b.gt .L192_dec_blocks_more_than_1 | |
| 3536 | ||
| 3537 | sub $rctr32w, $rctr32w, #1 | |
| 3538 | b .L192_dec_blocks_less_than_1 | |
| 3539 | .L192_dec_blocks_more_than_3: @ blocks left > 3 | |
| 3540 | rev64 $res0b, $res1b @ GHASH final-3 block | |
| 3541 | ld1 { $res1b}, [$input_ptr], #16 @ AES final-2 block - load ciphertext | |
| 3542 | ||
| 3543 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-3 block - store result | |
| 3544 | ||
| 3545 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 3546 | ||
| 3547 | eor $ctr0b, $res1b, $ctr1b @ AES final-2 block - result | |
| 3548 | ||
| 3549 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low | |
| 3550 | mov $output_l0, $ctr0.d[0] @ AES final-2 block - mov low | |
| 3551 | mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid | |
| 3552 | ||
| 3553 | mov $output_h0, $ctr0.d[1] @ AES final-2 block - mov high | |
| 3554 | ||
| 3555 | mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid | |
| 3556 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid | |
| 3557 | ||
| 3558 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high | |
| 3559 | ||
| 3560 | eor $output_l0, $output_l0, $rk12_l @ AES final-2 block - round 12 low | |
| 3561 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 3562 | ||
| 3563 | pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid | |
| 3564 | eor $output_h0, $output_h0, $rk12_h @ AES final-2 block - round 12 high | |
| 3565 | .L192_dec_blocks_more_than_2: @ blocks left > 2 | |
| 3566 | ||
| 3567 | rev64 $res0b, $res1b @ GHASH final-2 block | |
| 3568 | ld1 { $res1b}, [$input_ptr], #16 @ AES final-1 block - load ciphertext | |
| 3569 | ||
| 3570 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 3571 | ||
| 3572 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 3573 | ||
| 3574 | eor $ctr0b, $res1b, $ctr2b @ AES final-1 block - result | |
| 3575 | ||
| 3576 | mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid | |
| 3577 | ||
| 3578 | pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low | |
| 3579 | ||
| 3580 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-2 block - store result | |
| 3581 | ||
| 3582 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid | |
| 3583 | mov $output_h0, $ctr0.d[1] @ AES final-1 block - mov high | |
| 3584 | ||
| 3585 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low | |
| 3586 | mov $output_l0, $ctr0.d[0] @ AES final-1 block - mov low | |
| 3587 | ||
| 3588 | pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high | |
| 3589 | ||
| 3590 | pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid | |
| 3591 | ||
| 3592 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high | |
| 3593 | eor $output_h0, $output_h0, $rk12_h @ AES final-1 block - round 12 high | |
| 3594 | ||
| 3595 | eor $output_l0, $output_l0, $rk12_l @ AES final-1 block - round 12 low | |
| 3596 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid | |
| 3597 | .L192_dec_blocks_more_than_1: @ blocks left > 1 | |
| 3598 | ||
| 3599 | rev64 $res0b, $res1b @ GHASH final-1 block | |
| 3600 | ||
| 3601 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 3602 | ld1 { $res1b}, [$input_ptr], #16 @ AES final block - load ciphertext | |
| 3603 | ||
| 3604 | mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid | |
| 3605 | ||
| 3606 | pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high | |
| 3607 | ||
| 3608 | eor $ctr0b, $res1b, $ctr3b @ AES final block - result | |
| 3609 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-1 block - store result | |
| 3610 | ||
| 3611 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid | |
| 3612 | ||
| 3613 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high | |
| 3614 | ||
| 3615 | pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low | |
| 3616 | mov $output_h0, $ctr0.d[1] @ AES final block - mov high | |
| 3617 | ||
| 3618 | ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid | |
| 3619 | mov $output_l0, $ctr0.d[0] @ AES final block - mov low | |
| 3620 | ||
| 3621 | pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid | |
| 3622 | ||
| 3623 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 3624 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low | |
| 3625 | eor $output_h0, $output_h0, $rk12_h @ AES final block - round 12 high | |
| 3626 | ||
| 3627 | eor $output_l0, $output_l0, $rk12_l @ AES final block - round 12 low | |
| 3628 | ||
| 3629 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid | |
| 3630 | .L192_dec_blocks_less_than_1: @ blocks left <= 1 | |
| 3631 | ||
| 3632 | mvn $rk12_l, xzr @ rk12_l = 0xffffffffffffffff | |
| 3633 | ldp $end_input_ptr, $main_end_input_ptr, [$output_ptr] @ load existing bytes we need to not overwrite | |
| 3634 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 3635 | ||
| 3636 | sub $bit_length, $bit_length, #128 @ bit_length -= 128 | |
| 3637 | ||
| 3638 | neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) | |
| 3639 | ||
| 3640 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 3641 | mvn $rk12_h, xzr @ rk12_h = 0xffffffffffffffff | |
| 3642 | ||
| 3643 | lsr $rk12_h, $rk12_h, $bit_length @ rk12_h is mask for top 64b of last block | |
| 3644 | cmp $bit_length, #64 | |
| 3645 | ||
| 3646 | csel $ctr32x, $rk12_l, $rk12_h, lt | |
| 3647 | csel $ctr96_b64x, $rk12_h, xzr, lt | |
| 3648 | ||
| 3649 | fmov $ctr0d, $ctr32x @ ctr0b is mask for last block | |
| 3650 | and $output_l0, $output_l0, $ctr32x | |
| 3651 | bic $end_input_ptr, $end_input_ptr, $ctr32x @ mask out low existing bytes | |
| 3652 | ||
| 3653 | orr $output_l0, $output_l0, $end_input_ptr | |
| 3654 | mov $ctr0.d[1], $ctr96_b64x | |
| 3655 | ||
| 3656 | rev $ctr32w, $rctr32w | |
| 3657 | ||
| 3658 | and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits | |
| 3659 | str $ctr32w, [$counter, #12] @ store the updated counter | |
| 3660 | ||
| 3661 | rev64 $res0b, $res1b @ GHASH final block | |
| 3662 | ||
| 3663 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 3664 | bic $main_end_input_ptr, $main_end_input_ptr, $ctr96_b64x @ mask out high existing bytes | |
| 3665 | ||
| 3666 | and $output_h0, $output_h0, $ctr96_b64x | |
| 3667 | ||
| 3668 | pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high | |
| 3669 | mov $t0d, $res0.d[1] @ GHASH final block - mid | |
| 3670 | ||
| 3671 | pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low | |
| 3672 | ||
| 3673 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid | |
| 3674 | ||
| 3675 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high | |
| 3676 | ||
| 3677 | pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid | |
| 3678 | ||
| 3679 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low | |
| 3680 | ||
| 3681 | eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid | |
| 3682 | movi $mod_constant.8b, #0xc2 | |
| 3683 | ||
| 3684 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 3685 | ||
| 3686 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 3687 | ||
| 3688 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 3689 | ||
| 3690 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 3691 | orr $output_h0, $output_h0, $main_end_input_ptr | |
| 3692 | stp $output_l0, $output_h0, [$output_ptr] | |
| 3693 | ||
| 3694 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 3695 | ||
| 3696 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 3697 | ||
| 3698 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 3699 | ||
| 3700 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 3701 | ||
| 3702 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 3703 | ||
| 3704 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 3705 | ||
| 3706 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 3707 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 3708 | rev64 $acc_lb, $acc_lb | |
| 3709 | mov x0, $len | |
| 3710 | st1 { $acc_l.16b }, [$current_tag] | |
| 3711 | ||
| 3712 | ldp x21, x22, [sp, #16] | |
| 3713 | ldp x23, x24, [sp, #32] | |
| 3714 | ldp d8, d9, [sp, #48] | |
| 3715 | ldp d10, d11, [sp, #64] | |
| 3716 | ldp d12, d13, [sp, #80] | |
| 3717 | ldp d14, d15, [sp, #96] | |
| 3718 | ldp x19, x20, [sp], #112 | |
| 3719 | ret | |
| 3720 | ||
| 3721 | .L192_dec_ret: | |
| 3722 | mov w0, #0x0 | |
| 3723 | ret | |
| 3724 | .size aes_gcm_dec_192_kernel,.-aes_gcm_dec_192_kernel | |
| 3725 | ___ | |
| 3726 | } | |
| 3727 | ||
| 3728 | { | |
| 3729 | my ($end_input_ptr,$main_end_input_ptr,$input_l0,$input_h0)=map("x$_",(4..7)); | |
| 3730 | my ($input_l1,$input_h1,$input_l2,$input_h2,$input_l3,$input_h3)=map("x$_",(19..24)); | |
| 3731 | my ($output_l1,$output_h1,$output_l2,$output_h2,$output_l3,$output_h3)=map("x$_",(19..24)); | |
| 3732 | my ($output_l0,$output_h0)=map("x$_",(6..7)); | |
| 3733 | ||
| 3734 | my $ctr32w="w9"; | |
| 3735 | my ($ctr32x,$ctr96_b64x,$ctr96_t32x,$rctr32x,$rk14_l,$rk14_h,$len)=map("x$_",(9..15)); | |
| 3736 | my ($ctr96_t32w,$rctr32w)=map("w$_",(11..12)); | |
| 3737 | ||
| 3738 | my ($ctr0b,$ctr1b,$ctr2b,$ctr3b,$res0b,$res1b,$res2b,$res3b)=map("v$_.16b",(0..7)); | |
| 3739 | my ($ctr0,$ctr1,$ctr2,$ctr3,$res0,$res1,$res2,$res3)=map("v$_",(0..7)); | |
| 3740 | my ($ctr0d,$ctr1d,$ctr2d,$ctr3d,$res0d,$res1d,$res2d,$res3d)=map("d$_",(0..7)); | |
| 3741 | my ($res0q,$res1q,$res2q,$res3q)=map("q$_",(4..7)); | |
| 3742 | ||
| 3743 | my ($acc_hb,$acc_mb,$acc_lb)=map("v$_.16b",(9..11)); | |
| 3744 | my ($acc_h,$acc_m,$acc_l)=map("v$_",(9..11)); | |
| 3745 | my ($acc_hd,$acc_md,$acc_ld)=map("d$_",(9..11)); | |
| 3746 | ||
| 3747 | my ($h1,$h2,$h3,$h4,$h12k,$h34k)=map("v$_",(12..17)); | |
| 3748 | my ($h1q,$h2q,$h3q,$h4q)=map("q$_",(12..15)); | |
| 3749 | my ($h1b,$h2b,$h3b,$h4b)=map("v$_.16b",(12..15)); | |
| 3750 | ||
| 3751 | my $t0="v8"; | |
| 3752 | my $t0d="d8"; | |
| 3753 | my $t1="v4"; | |
| 3754 | my $t1d="d4"; | |
| 3755 | my $t2="v8"; | |
| 3756 | my $t2d="d8"; | |
| 3757 | my $t3="v4"; | |
| 3758 | my $t3d="d4"; | |
| 3759 | my $t4="v4"; | |
| 3760 | my $t4d="d4"; | |
| 3761 | my $t5="v5"; | |
| 3762 | my $t5d="d5"; | |
| 3763 | my $t6="v8"; | |
| 3764 | my $t6d="d8"; | |
| 3765 | my $t7="v5"; | |
| 3766 | my $t7d="d5"; | |
| 3767 | my $t8="v6"; | |
| 3768 | my $t8d="d6"; | |
| 3769 | my $t9="v4"; | |
| 3770 | my $t9d="d4"; | |
| 3771 | ||
| 3772 | my ($ctr_t0,$ctr_t1,$ctr_t2,$ctr_t3)=map("v$_",(4..7)); | |
| 3773 | my ($ctr_t0d,$ctr_t1d,$ctr_t2d,$ctr_t3d)=map("d$_",(4..7)); | |
| 3774 | my ($ctr_t0b,$ctr_t1b,$ctr_t2b,$ctr_t3b)=map("v$_.16b",(4..7)); | |
| 3775 | ||
| 3776 | my $mod_constantd="d8"; | |
| 3777 | my $mod_constant="v8"; | |
| 3778 | my $mod_t="v7"; | |
| 3779 | ||
| 3780 | my ($rk0,$rk1,$rk2,$rk3,$rk4,$rk5,$rk6,$rk7,$rk8,$rk9,$rk10,$rk11,$rk12,$rk13)=map("v$_.16b",(18..31)); | |
| 3781 | my ($rk0q,$rk1q,$rk2q,$rk3q,$rk4q,$rk5q,$rk6q,$rk7q,$rk8q,$rk9q,$rk10q,$rk11q,$rk12q,$rk13q)=map("q$_",(18..31)); | |
| 3782 | my $rk2q1="v20.1q"; | |
| 3783 | my $rk3q1="v21.1q"; | |
| 3784 | my $rk4v="v22"; | |
| 3785 | my $rk4d="d22"; | |
| 3786 | ||
| 3787 | ######################################################################################### | |
| 3788 | # size_t aes_gcm_enc_256_kernel(const unsigned char *in, | |
| 3789 | # size_t len, | |
| 3790 | # unsigned char *out, | |
| 3791 | # const void *key, | |
| 3792 | # unsigned char ivec[16], | |
| 3793 | # u64 *Xi); | |
| 3794 | # | |
| 3795 | $code.=<<___; | |
| 3796 | .global aes_gcm_enc_256_kernel | |
| 3797 | .type aes_gcm_enc_256_kernel,%function | |
| 3798 | .align 4 | |
| 3799 | aes_gcm_enc_256_kernel: | |
| 3800 | cbz x1, .L256_enc_ret | |
| 3801 | stp x19, x20, [sp, #-112]! | |
| 3802 | mov x16, x4 | |
| 3803 | mov x8, x5 | |
| 3804 | stp x21, x22, [sp, #16] | |
| 3805 | stp x23, x24, [sp, #32] | |
| 3806 | stp d8, d9, [sp, #48] | |
| 3807 | stp d10, d11, [sp, #64] | |
| 3808 | stp d12, d13, [sp, #80] | |
| 3809 | stp d14, d15, [sp, #96] | |
| 3810 | ||
| 3811 | add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr | |
| 3812 | lsr $main_end_input_ptr, $bit_length, #3 @ byte_len | |
| 3813 | mov $len, $main_end_input_ptr | |
| 3814 | ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 | |
| 3815 | ||
| 3816 | ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible | |
| 3817 | sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 | |
| 3818 | ||
| 3819 | ldr $rk0q, [$cc, #0] @ load rk0 | |
| 3820 | and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) | |
| 3821 | ||
| 3822 | ldr $rk7q, [$cc, #112] @ load rk7 | |
| 3823 | add $main_end_input_ptr, $main_end_input_ptr, $input_ptr | |
| 3824 | ||
| 3825 | lsr $rctr32x, $ctr96_t32x, #32 | |
| 3826 | fmov $ctr2d, $ctr96_b64x @ CTR block 2 | |
| 3827 | orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w | |
| 3828 | ||
| 3829 | rev $rctr32w, $rctr32w @ rev_ctr32 | |
| 3830 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks | |
| 3831 | fmov $ctr1d, $ctr96_b64x @ CTR block 1 | |
| 3832 | ||
| 3833 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 | |
| 3834 | add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 | |
| 3835 | ||
| 3836 | rev $ctr32w, $rctr32w @ CTR block 1 | |
| 3837 | fmov $ctr3d, $ctr96_b64x @ CTR block 3 | |
| 3838 | ||
| 3839 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 | |
| 3840 | add $rctr32w, $rctr32w, #1 @ CTR block 1 | |
| 3841 | ldr $rk1q, [$cc, #16] @ load rk1 | |
| 3842 | ||
| 3843 | fmov $ctr1.d[1], $ctr32x @ CTR block 1 | |
| 3844 | rev $ctr32w, $rctr32w @ CTR block 2 | |
| 3845 | add $rctr32w, $rctr32w, #1 @ CTR block 2 | |
| 3846 | ||
| 3847 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 | |
| 3848 | ldr $rk2q, [$cc, #32] @ load rk2 | |
| 3849 | ||
| 3850 | fmov $ctr2.d[1], $ctr32x @ CTR block 2 | |
| 3851 | rev $ctr32w, $rctr32w @ CTR block 3 | |
| 3852 | ||
| 3853 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 | |
| 3854 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 | |
| 3855 | ||
| 3856 | fmov $ctr3.d[1], $ctr32x @ CTR block 3 | |
| 3857 | ||
| 3858 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 | |
| 3859 | ldr $rk3q, [$cc, #48] @ load rk3 | |
| 3860 | ||
| 3861 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 | |
| 3862 | ldr $rk6q, [$cc, #96] @ load rk6 | |
| 3863 | ||
| 3864 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 | |
| 3865 | ldr $rk5q, [$cc, #80] @ load rk5 | |
| 3866 | ||
| 3867 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 | |
| 3868 | ldr $h3q, [$current_tag, #80] @ load h3l | h3h | |
| 3869 | ext $h3b, $h3b, $h3b, #8 | |
| 3870 | ||
| 3871 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 | |
| 3872 | ldr $rk13q, [$cc, #208] @ load rk13 | |
| 3873 | ||
| 3874 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 | |
| 3875 | ldr $rk4q, [$cc, #64] @ load rk4 | |
| 3876 | ||
| 3877 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 | |
| 3878 | ldr $h2q, [$current_tag, #64] @ load h2l | h2h | |
| 3879 | ext $h2b, $h2b, $h2b, #8 | |
| 3880 | ||
| 3881 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 | |
| 3882 | ldr $rk12q, [$cc, #192] @ load rk12 | |
| 3883 | ||
| 3884 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 | |
| 3885 | ldr $h4q, [$current_tag, #112] @ load h4l | h4h | |
| 3886 | ext $h4b, $h4b, $h4b, #8 | |
| 3887 | ||
| 3888 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 | |
| 3889 | ldr $rk11q, [$cc, #176] @ load rk11 | |
| 3890 | ||
| 3891 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 | |
| 3892 | ldr $rk8q, [$cc, #128] @ load rk8 | |
| 3893 | ||
| 3894 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 | |
| 3895 | add $rctr32w, $rctr32w, #1 @ CTR block 3 | |
| 3896 | ||
| 3897 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 | |
| 3898 | ldp $rk14_l, $rk14_h, [$cc, #224] @ load rk14 | |
| 3899 | ||
| 3900 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 | |
| 3901 | ld1 { $acc_lb}, [$current_tag] | |
| 3902 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 3903 | rev64 $acc_lb, $acc_lb | |
| 3904 | ||
| 3905 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 | |
| 3906 | ||
| 3907 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 | |
| 3908 | ||
| 3909 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 | |
| 3910 | ||
| 3911 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 | |
| 3912 | ||
| 3913 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 | |
| 3914 | ||
| 3915 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 | |
| 3916 | ||
| 3917 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 | |
| 3918 | ||
| 3919 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 | |
| 3920 | ||
| 3921 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 | |
| 3922 | trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l | |
| 3923 | ||
| 3924 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 | |
| 3925 | ldr $rk9q, [$cc, #144] @ load rk9 | |
| 3926 | ||
| 3927 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 | |
| 3928 | ldr $h1q, [$current_tag, #32] @ load h1l | h1h | |
| 3929 | ext $h1b, $h1b, $h1b, #8 | |
| 3930 | ||
| 3931 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 | |
| 3932 | ldr $rk10q, [$cc, #160] @ load rk10 | |
| 3933 | ||
| 3934 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 | |
| 3935 | trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h | |
| 3936 | ||
| 3937 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 | |
| 3938 | ||
| 3939 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 | |
| 3940 | ||
| 3941 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 | |
| 3942 | trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l | |
| 3943 | ||
| 3944 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 | |
| 3945 | ||
| 3946 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 | |
| 3947 | ||
| 3948 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 | |
| 3949 | ||
| 3950 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 | |
| 3951 | ||
| 3952 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 | |
| 3953 | ||
| 3954 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 | |
| 3955 | ||
| 3956 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 | |
| 3957 | ||
| 3958 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 | |
| 3959 | ||
| 3960 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 | |
| 3961 | ||
| 3962 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 | |
| 3963 | ||
| 3964 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 | |
| 3965 | ||
| 3966 | aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 11 | |
| 3967 | ||
| 3968 | aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 11 | |
| 3969 | ||
| 3970 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 | |
| 3971 | ||
| 3972 | aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 12 | |
| 3973 | ||
| 3974 | aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 12 | |
| 3975 | ||
| 3976 | aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 11 | |
| 3977 | eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k | |
| 3978 | ||
| 3979 | aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 11 | |
| 3980 | ||
| 3981 | aese $ctr2b, $rk13 @ AES block 2 - round 13 | |
| 3982 | trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h | |
| 3983 | ||
| 3984 | aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 12 | |
| 3985 | ||
| 3986 | aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 12 | |
| 3987 | ||
| 3988 | aese $ctr1b, $rk13 @ AES block 1 - round 13 | |
| 3989 | ||
| 3990 | aese $ctr0b, $rk13 @ AES block 0 - round 13 | |
| 3991 | ||
| 3992 | aese $ctr3b, $rk13 @ AES block 3 - round 13 | |
| 3993 | eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k | |
| 3994 | b.ge .L256_enc_tail @ handle tail | |
| 3995 | ||
| 3996 | ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 1 - load plaintext | |
| 3997 | ||
| 3998 | rev $ctr32w, $rctr32w @ CTR block 4 | |
| 3999 | ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 0 - load plaintext | |
| 4000 | ||
| 4001 | ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 3 - load plaintext | |
| 4002 | ||
| 4003 | ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 2 - load plaintext | |
| 4004 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 4005 | ||
| 4006 | eor $input_l1, $input_l1, $rk14_l @ AES block 1 - round 14 low | |
| 4007 | eor $input_h1, $input_h1, $rk14_h @ AES block 1 - round 14 high | |
| 4008 | ||
| 4009 | fmov $ctr_t1d, $input_l1 @ AES block 1 - mov low | |
| 4010 | eor $input_l0, $input_l0, $rk14_l @ AES block 0 - round 14 low | |
| 4011 | ||
| 4012 | eor $input_h0, $input_h0, $rk14_h @ AES block 0 - round 14 high | |
| 4013 | eor $input_h3, $input_h3, $rk14_h @ AES block 3 - round 14 high | |
| 4014 | fmov $ctr_t0d, $input_l0 @ AES block 0 - mov low | |
| 4015 | ||
| 4016 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks | |
| 4017 | fmov $ctr_t0.d[1], $input_h0 @ AES block 0 - mov high | |
| 4018 | eor $input_l3, $input_l3, $rk14_l @ AES block 3 - round 14 low | |
| 4019 | ||
| 4020 | eor $input_l2, $input_l2, $rk14_l @ AES block 2 - round 14 low | |
| 4021 | fmov $ctr_t1.d[1], $input_h1 @ AES block 1 - mov high | |
| 4022 | ||
| 4023 | fmov $ctr_t2d, $input_l2 @ AES block 2 - mov low | |
| 4024 | add $rctr32w, $rctr32w, #1 @ CTR block 4 | |
| 4025 | ||
| 4026 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 | |
| 4027 | fmov $ctr_t3d, $input_l3 @ AES block 3 - mov low | |
| 4028 | eor $input_h2, $input_h2, $rk14_h @ AES block 2 - round 14 high | |
| 4029 | ||
| 4030 | fmov $ctr_t2.d[1], $input_h2 @ AES block 2 - mov high | |
| 4031 | ||
| 4032 | eor $res0b, $ctr_t0b, $ctr0b @ AES block 0 - result | |
| 4033 | fmov $ctr0d, $ctr96_b64x @ CTR block 4 | |
| 4034 | ||
| 4035 | fmov $ctr0.d[1], $ctr32x @ CTR block 4 | |
| 4036 | rev $ctr32w, $rctr32w @ CTR block 5 | |
| 4037 | add $rctr32w, $rctr32w, #1 @ CTR block 5 | |
| 4038 | ||
| 4039 | eor $res1b, $ctr_t1b, $ctr1b @ AES block 1 - result | |
| 4040 | fmov $ctr1d, $ctr96_b64x @ CTR block 5 | |
| 4041 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 | |
| 4042 | ||
| 4043 | fmov $ctr1.d[1], $ctr32x @ CTR block 5 | |
| 4044 | rev $ctr32w, $rctr32w @ CTR block 6 | |
| 4045 | st1 { $res0b}, [$output_ptr], #16 @ AES block 0 - store result | |
| 4046 | ||
| 4047 | fmov $ctr_t3.d[1], $input_h3 @ AES block 3 - mov high | |
| 4048 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 | |
| 4049 | eor $res2b, $ctr_t2b, $ctr2b @ AES block 2 - result | |
| 4050 | ||
| 4051 | st1 { $res1b}, [$output_ptr], #16 @ AES block 1 - store result | |
| 4052 | ||
| 4053 | add $rctr32w, $rctr32w, #1 @ CTR block 6 | |
| 4054 | fmov $ctr2d, $ctr96_b64x @ CTR block 6 | |
| 4055 | ||
| 4056 | fmov $ctr2.d[1], $ctr32x @ CTR block 6 | |
| 4057 | st1 { $res2b}, [$output_ptr], #16 @ AES block 2 - store result | |
| 4058 | rev $ctr32w, $rctr32w @ CTR block 7 | |
| 4059 | ||
| 4060 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 7 | |
| 4061 | ||
| 4062 | eor $res3b, $ctr_t3b, $ctr3b @ AES block 3 - result | |
| 4063 | st1 { $res3b}, [$output_ptr], #16 @ AES block 3 - store result | |
| 4064 | b.ge L256_enc_prepretail @ do prepretail | |
| 4065 | ||
| 4066 | .L256_enc_main_loop: @ main loop start | |
| 4067 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 4068 | rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) | |
| 4069 | ||
| 4070 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 4071 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 | |
| 4072 | ||
| 4073 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 4074 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 4075 | ||
| 4076 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 4077 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 | |
| 4078 | ||
| 4079 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 4080 | ldp $input_l3, $input_h3, [$input_ptr, #48] @ AES block 4k+7 - load plaintext | |
| 4081 | ||
| 4082 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 4083 | ldp $input_l2, $input_h2, [$input_ptr, #32] @ AES block 4k+6 - load plaintext | |
| 4084 | ||
| 4085 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 4086 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 4087 | ||
| 4088 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 4089 | ||
| 4090 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 4091 | eor $input_l3, $input_l3, $rk14_l @ AES block 4k+7 - round 14 low | |
| 4092 | ||
| 4093 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 4094 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 4095 | ||
| 4096 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 4097 | eor $input_h2, $input_h2, $rk14_h @ AES block 4k+6 - round 14 high | |
| 4098 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 4099 | ||
| 4100 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 4101 | rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) | |
| 4102 | ||
| 4103 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 4104 | ||
| 4105 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 4106 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 4107 | ||
| 4108 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 4109 | ||
| 4110 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 4111 | rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) | |
| 4112 | ||
| 4113 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 4114 | ||
| 4115 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 4116 | rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) | |
| 4117 | ||
| 4118 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 4119 | ||
| 4120 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 4121 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 4122 | ||
| 4123 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 4124 | ||
| 4125 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 4126 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 4127 | ||
| 4128 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 4129 | ||
| 4130 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 4131 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 4132 | ||
| 4133 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 4134 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 4135 | ||
| 4136 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 4137 | ||
| 4138 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 4139 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 4140 | ||
| 4141 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 4142 | ||
| 4143 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 4144 | ||
| 4145 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 4146 | ||
| 4147 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 4148 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 4149 | ||
| 4150 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 4151 | ||
| 4152 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 4153 | ||
| 4154 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 4155 | ||
| 4156 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 4157 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 4158 | ||
| 4159 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 4160 | ||
| 4161 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 4162 | ||
| 4163 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 4164 | ||
| 4165 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 4166 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 4167 | ||
| 4168 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 4169 | ldp $input_l1, $input_h1, [$input_ptr, #16] @ AES block 4k+5 - load plaintext | |
| 4170 | ||
| 4171 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 4172 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 4173 | ||
| 4174 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 4175 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 4176 | ||
| 4177 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 4178 | ||
| 4179 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 4180 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 4181 | ||
| 4182 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 4183 | eor $input_l1, $input_l1, $rk14_l @ AES block 4k+5 - round 14 low | |
| 4184 | ||
| 4185 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 4186 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 4187 | ||
| 4188 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 4189 | eor $input_l2, $input_l2, $rk14_l @ AES block 4k+6 - round 14 low | |
| 4190 | ||
| 4191 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 4192 | movi $mod_constant.8b, #0xc2 | |
| 4193 | ||
| 4194 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 4195 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 4196 | fmov $ctr_t1d, $input_l1 @ AES block 4k+5 - mov low | |
| 4197 | ||
| 4198 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 4199 | ldp $input_l0, $input_h0, [$input_ptr, #0] @ AES block 4k+4 - load plaintext | |
| 4200 | ||
| 4201 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 4202 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 4203 | ||
| 4204 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 4205 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 4206 | ||
| 4207 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 4208 | ||
| 4209 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 4210 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 4211 | ||
| 4212 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 4213 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 | |
| 4214 | ||
| 4215 | aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 | |
| 4216 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 4217 | ||
| 4218 | aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 | |
| 4219 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 4220 | ||
| 4221 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 4222 | rev $ctr32w, $rctr32w @ CTR block 4k+8 | |
| 4223 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 4224 | ||
| 4225 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 4226 | eor $input_l0, $input_l0, $rk14_l @ AES block 4k+4 - round 14 low | |
| 4227 | ||
| 4228 | aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 | |
| 4229 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 4230 | ||
| 4231 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 4232 | eor $input_h0, $input_h0, $rk14_h @ AES block 4k+4 - round 14 high | |
| 4233 | ||
| 4234 | fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low | |
| 4235 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 | |
| 4236 | eor $mod_t.16b, $acc_hb, $mod_t.16b @ MODULO - fold into mid | |
| 4237 | ||
| 4238 | aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 | |
| 4239 | eor $input_h1, $input_h1, $rk14_h @ AES block 4k+5 - round 14 high | |
| 4240 | ||
| 4241 | aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 | |
| 4242 | eor $input_h3, $input_h3, $rk14_h @ AES block 4k+7 - round 14 high | |
| 4243 | ||
| 4244 | aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 | |
| 4245 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 | |
| 4246 | ||
| 4247 | aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 | |
| 4248 | fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high | |
| 4249 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 4250 | ||
| 4251 | aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 | |
| 4252 | fmov $ctr_t3d, $input_l3 @ AES block 4k+7 - mov low | |
| 4253 | ||
| 4254 | aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 | |
| 4255 | fmov $ctr_t1.d[1], $input_h1 @ AES block 4k+5 - mov high | |
| 4256 | ||
| 4257 | fmov $ctr_t2d, $input_l2 @ AES block 4k+6 - mov low | |
| 4258 | cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL | |
| 4259 | ||
| 4260 | fmov $ctr_t2.d[1], $input_h2 @ AES block 4k+6 - mov high | |
| 4261 | ||
| 4262 | pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 4263 | eor $res0b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result | |
| 4264 | fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 | |
| 4265 | ||
| 4266 | fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 | |
| 4267 | rev $ctr32w, $rctr32w @ CTR block 4k+9 | |
| 4268 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 | |
| 4269 | ||
| 4270 | eor $res1b, $ctr_t1b, $ctr1b @ AES block 4k+5 - result | |
| 4271 | fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 | |
| 4272 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 | |
| 4273 | ||
| 4274 | aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 | |
| 4275 | fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 | |
| 4276 | ||
| 4277 | aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 | |
| 4278 | rev $ctr32w, $rctr32w @ CTR block 4k+10 | |
| 4279 | st1 { $res0b}, [$output_ptr], #16 @ AES block 4k+4 - store result | |
| 4280 | ||
| 4281 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 | |
| 4282 | eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low | |
| 4283 | fmov $ctr_t3.d[1], $input_h3 @ AES block 4k+7 - mov high | |
| 4284 | ||
| 4285 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 4286 | st1 { $res1b}, [$output_ptr], #16 @ AES block 4k+5 - store result | |
| 4287 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 | |
| 4288 | ||
| 4289 | aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 | |
| 4290 | eor $res2b, $ctr_t2b, $ctr2b @ AES block 4k+6 - result | |
| 4291 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+10 | |
| 4292 | ||
| 4293 | st1 { $res2b}, [$output_ptr], #16 @ AES block 4k+6 - store result | |
| 4294 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+10 | |
| 4295 | rev $ctr32w, $rctr32w @ CTR block 4k+11 | |
| 4296 | ||
| 4297 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 4298 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+11 | |
| 4299 | ||
| 4300 | eor $res3b, $ctr_t3b, $ctr3b @ AES block 4k+7 - result | |
| 4301 | st1 { $res3b}, [$output_ptr], #16 @ AES block 4k+7 - store result | |
| 4302 | b.lt L256_enc_main_loop | |
| 4303 | ||
| 4304 | .L256_enc_prepretail: @ PREPRETAIL | |
| 4305 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 4306 | rev64 $res2b, $res2b @ GHASH block 4k+2 (t0, t1, and t2 free) | |
| 4307 | ||
| 4308 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 4309 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+3 | |
| 4310 | ||
| 4311 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 4312 | rev64 $res0b, $res0b @ GHASH block 4k (only t0 is free) | |
| 4313 | ||
| 4314 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+3 | |
| 4315 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 4316 | ||
| 4317 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 4318 | ||
| 4319 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 4320 | ||
| 4321 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 4322 | rev64 $res1b, $res1b @ GHASH block 4k+1 (t0 and t1 free) | |
| 4323 | ||
| 4324 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 4325 | ||
| 4326 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 4327 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 4328 | ||
| 4329 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 4330 | ||
| 4331 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 4332 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 4333 | ||
| 4334 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 4335 | ||
| 4336 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 4337 | ||
| 4338 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 4339 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 4340 | ||
| 4341 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 4342 | ||
| 4343 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 4344 | ||
| 4345 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 4346 | ||
| 4347 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 4348 | ||
| 4349 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 4350 | ||
| 4351 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 4352 | ||
| 4353 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 4354 | ||
| 4355 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 4356 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 4357 | ||
| 4358 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 4359 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 4360 | ||
| 4361 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 4362 | ||
| 4363 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 4364 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 4365 | ||
| 4366 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 4367 | rev64 $res3b, $res3b @ GHASH block 4k+3 (t0, t1, t2 and t3 free) | |
| 4368 | ||
| 4369 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 4370 | ||
| 4371 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 4372 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 4373 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+3 | |
| 4374 | ||
| 4375 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 4376 | ||
| 4377 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 4378 | ||
| 4379 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 4380 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 4381 | ||
| 4382 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 4383 | ||
| 4384 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 4385 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 4386 | ||
| 4387 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 4388 | ||
| 4389 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 4390 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 4391 | ||
| 4392 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 4393 | ||
| 4394 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 4395 | ||
| 4396 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 4397 | ||
| 4398 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 4399 | ||
| 4400 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 4401 | ||
| 4402 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 4403 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 4404 | ||
| 4405 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 4406 | ||
| 4407 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 4408 | ||
| 4409 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 4410 | ||
| 4411 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 4412 | movi $mod_constant.8b, #0xc2 | |
| 4413 | ||
| 4414 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 4415 | ||
| 4416 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 4417 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 4418 | ||
| 4419 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 4420 | ||
| 4421 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 4422 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 4423 | ||
| 4424 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 4425 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 4426 | ||
| 4427 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 4428 | ||
| 4429 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 4430 | ||
| 4431 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 4432 | ||
| 4433 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 4434 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 4435 | ||
| 4436 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 4437 | ||
| 4438 | eor $acc_mb, $acc_mb, $acc_hb @ karatsuba tidy up | |
| 4439 | ||
| 4440 | pmull $t1.1q, $acc_h.1d, $mod_constant.1d | |
| 4441 | ext $acc_hb, $acc_hb, $acc_hb, #8 | |
| 4442 | ||
| 4443 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 4444 | ||
| 4445 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 4446 | eor $acc_mb, $acc_mb, $acc_lb | |
| 4447 | ||
| 4448 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 4449 | ||
| 4450 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 4451 | ||
| 4452 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 4453 | ||
| 4454 | aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 | |
| 4455 | eor $acc_mb, $acc_mb, $t1.16b | |
| 4456 | ||
| 4457 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 4458 | ||
| 4459 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 4460 | ||
| 4461 | aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 | |
| 4462 | ||
| 4463 | aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 | |
| 4464 | eor $acc_mb, $acc_mb, $acc_hb | |
| 4465 | ||
| 4466 | aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 | |
| 4467 | ||
| 4468 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 4469 | ||
| 4470 | aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 | |
| 4471 | ||
| 4472 | pmull $t1.1q, $acc_m.1d, $mod_constant.1d | |
| 4473 | ||
| 4474 | aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 | |
| 4475 | ext $acc_mb, $acc_mb, $acc_mb, #8 | |
| 4476 | ||
| 4477 | aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 | |
| 4478 | ||
| 4479 | aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 | |
| 4480 | eor $acc_lb, $acc_lb, $t1.16b | |
| 4481 | ||
| 4482 | aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 | |
| 4483 | ||
| 4484 | aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 | |
| 4485 | ||
| 4486 | aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 | |
| 4487 | ||
| 4488 | aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 | |
| 4489 | eor $acc_lb, $acc_lb, $acc_mb | |
| 4490 | .L256_enc_tail: @ TAIL | |
| 4491 | ||
| 4492 | ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag | |
| 4493 | sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process | |
| 4494 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES block 4k+4 - load plaintext | |
| 4495 | ||
| 4496 | eor $input_l0, $input_l0, $rk14_l @ AES block 4k+4 - round 14 low | |
| 4497 | eor $input_h0, $input_h0, $rk14_h @ AES block 4k+4 - round 14 high | |
| 4498 | ||
| 4499 | cmp $main_end_input_ptr, #48 | |
| 4500 | fmov $ctr_t0d, $input_l0 @ AES block 4k+4 - mov low | |
| 4501 | ||
| 4502 | fmov $ctr_t0.d[1], $input_h0 @ AES block 4k+4 - mov high | |
| 4503 | ||
| 4504 | eor $res1b, $ctr_t0b, $ctr0b @ AES block 4k+4 - result | |
| 4505 | b.gt .L256_enc_blocks_more_than_3 | |
| 4506 | ||
| 4507 | cmp $main_end_input_ptr, #32 | |
| 4508 | mov $ctr3b, $ctr2b | |
| 4509 | movi $acc_l.8b, #0 | |
| 4510 | ||
| 4511 | movi $acc_h.8b, #0 | |
| 4512 | sub $rctr32w, $rctr32w, #1 | |
| 4513 | ||
| 4514 | mov $ctr2b, $ctr1b | |
| 4515 | movi $acc_m.8b, #0 | |
| 4516 | b.gt .L256_enc_blocks_more_than_2 | |
| 4517 | ||
| 4518 | mov $ctr3b, $ctr1b | |
| 4519 | sub $rctr32w, $rctr32w, #1 | |
| 4520 | cmp $main_end_input_ptr, #16 | |
| 4521 | ||
| 4522 | b.gt .L256_enc_blocks_more_than_1 | |
| 4523 | ||
| 4524 | sub $rctr32w, $rctr32w, #1 | |
| 4525 | b .L256_enc_blocks_less_than_1 | |
| 4526 | .L256_enc_blocks_more_than_3: @ blocks left > 3 | |
| 4527 | st1 { $res1b}, [$output_ptr], #16 @ AES final-3 block - store result | |
| 4528 | ||
| 4529 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-2 block - load input low & high | |
| 4530 | ||
| 4531 | rev64 $res0b, $res1b @ GHASH final-3 block | |
| 4532 | ||
| 4533 | eor $input_l0, $input_l0, $rk14_l @ AES final-2 block - round 14 low | |
| 4534 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 4535 | ||
| 4536 | eor $input_h0, $input_h0, $rk14_h @ AES final-2 block - round 14 high | |
| 4537 | ||
| 4538 | mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid | |
| 4539 | fmov $res1d, $input_l0 @ AES final-2 block - mov low | |
| 4540 | ||
| 4541 | fmov $res1.d[1], $input_h0 @ AES final-2 block - mov high | |
| 4542 | ||
| 4543 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid | |
| 4544 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 4545 | ||
| 4546 | mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid | |
| 4547 | ||
| 4548 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low | |
| 4549 | ||
| 4550 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high | |
| 4551 | ||
| 4552 | pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid | |
| 4553 | eor $res1b, $res1b, $ctr1b @ AES final-2 block - result | |
| 4554 | .L256_enc_blocks_more_than_2: @ blocks left > 2 | |
| 4555 | ||
| 4556 | st1 { $res1b}, [$output_ptr], #16 @ AES final-2 block - store result | |
| 4557 | ||
| 4558 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final-1 block - load input low & high | |
| 4559 | ||
| 4560 | rev64 $res0b, $res1b @ GHASH final-2 block | |
| 4561 | ||
| 4562 | eor $input_l0, $input_l0, $rk14_l @ AES final-1 block - round 14 low | |
| 4563 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 4564 | ||
| 4565 | fmov $res1d, $input_l0 @ AES final-1 block - mov low | |
| 4566 | eor $input_h0, $input_h0, $rk14_h @ AES final-1 block - round 14 high | |
| 4567 | ||
| 4568 | fmov $res1.d[1], $input_h0 @ AES final-1 block - mov high | |
| 4569 | ||
| 4570 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 4571 | ||
| 4572 | pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high | |
| 4573 | mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid | |
| 4574 | ||
| 4575 | pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low | |
| 4576 | ||
| 4577 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid | |
| 4578 | ||
| 4579 | eor $res1b, $res1b, $ctr2b @ AES final-1 block - result | |
| 4580 | ||
| 4581 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high | |
| 4582 | ||
| 4583 | pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid | |
| 4584 | ||
| 4585 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low | |
| 4586 | ||
| 4587 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid | |
| 4588 | .L256_enc_blocks_more_than_1: @ blocks left > 1 | |
| 4589 | ||
| 4590 | st1 { $res1b}, [$output_ptr], #16 @ AES final-1 block - store result | |
| 4591 | ||
| 4592 | rev64 $res0b, $res1b @ GHASH final-1 block | |
| 4593 | ||
| 4594 | ldp $input_l0, $input_h0, [$input_ptr], #16 @ AES final block - load input low & high | |
| 4595 | ||
| 4596 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 4597 | ||
| 4598 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 4599 | ||
| 4600 | eor $input_l0, $input_l0, $rk14_l @ AES final block - round 14 low | |
| 4601 | mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid | |
| 4602 | ||
| 4603 | pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high | |
| 4604 | eor $input_h0, $input_h0, $rk14_h @ AES final block - round 14 high | |
| 4605 | ||
| 4606 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid | |
| 4607 | ||
| 4608 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high | |
| 4609 | ||
| 4610 | ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid | |
| 4611 | fmov $res1d, $input_l0 @ AES final block - mov low | |
| 4612 | ||
| 4613 | fmov $res1.d[1], $input_h0 @ AES final block - mov high | |
| 4614 | ||
| 4615 | pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid | |
| 4616 | ||
| 4617 | pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low | |
| 4618 | ||
| 4619 | eor $res1b, $res1b, $ctr3b @ AES final block - result | |
| 4620 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid | |
| 4621 | ||
| 4622 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low | |
| 4623 | .L256_enc_blocks_less_than_1: @ blocks left <= 1 | |
| 4624 | ||
| 4625 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 4626 | ||
| 4627 | mvn $rk14_l, xzr @ rk14_l = 0xffffffffffffffff | |
| 4628 | sub $bit_length, $bit_length, #128 @ bit_length -= 128 | |
| 4629 | ||
| 4630 | neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) | |
| 4631 | ld1 { $rk0}, [$output_ptr] @ load existing bytes where the possibly partial last block is to be stored | |
| 4632 | ||
| 4633 | mvn $rk14_h, xzr @ rk14_h = 0xffffffffffffffff | |
| 4634 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 4635 | ||
| 4636 | lsr $rk14_h, $rk14_h, $bit_length @ rk14_h is mask for top 64b of last block | |
| 4637 | cmp $bit_length, #64 | |
| 4638 | ||
| 4639 | csel $input_l0, $rk14_l, $rk14_h, lt | |
| 4640 | csel $input_h0, $rk14_h, xzr, lt | |
| 4641 | ||
| 4642 | fmov $ctr0d, $input_l0 @ ctr0b is mask for last block | |
| 4643 | ||
| 4644 | fmov $ctr0.d[1], $input_h0 | |
| 4645 | ||
| 4646 | and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits | |
| 4647 | ||
| 4648 | rev64 $res0b, $res1b @ GHASH final block | |
| 4649 | ||
| 4650 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 4651 | ||
| 4652 | bif $res1b, $rk0, $ctr0b @ insert existing bytes in top end of result before storing | |
| 4653 | ||
| 4654 | pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high | |
| 4655 | mov $t0d, $res0.d[1] @ GHASH final block - mid | |
| 4656 | rev $ctr32w, $rctr32w | |
| 4657 | ||
| 4658 | pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low | |
| 4659 | ||
| 4660 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high | |
| 4661 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid | |
| 4662 | ||
| 4663 | pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid | |
| 4664 | ||
| 4665 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low | |
| 4666 | ||
| 4667 | eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid | |
| 4668 | movi $mod_constant.8b, #0xc2 | |
| 4669 | ||
| 4670 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 4671 | ||
| 4672 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 4673 | ||
| 4674 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 4675 | ||
| 4676 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 4677 | ||
| 4678 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 4679 | ||
| 4680 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 4681 | ||
| 4682 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 4683 | ||
| 4684 | pmull $acc_h.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 4685 | ||
| 4686 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 4687 | ||
| 4688 | str $ctr32w, [$counter, #12] @ store the updated counter | |
| 4689 | ||
| 4690 | st1 { $res1b}, [$output_ptr] @ store all 16B | |
| 4691 | eor $acc_lb, $acc_lb, $acc_hb @ MODULO - fold into low | |
| 4692 | ||
| 4693 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 4694 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 4695 | rev64 $acc_lb, $acc_lb | |
| 4696 | mov x0, $len | |
| 4697 | st1 { $acc_l.16b }, [$current_tag] | |
| 4698 | ||
| 4699 | ldp x21, x22, [sp, #16] | |
| 4700 | ldp x23, x24, [sp, #32] | |
| 4701 | ldp d8, d9, [sp, #48] | |
| 4702 | ldp d10, d11, [sp, #64] | |
| 4703 | ldp d12, d13, [sp, #80] | |
| 4704 | ldp d14, d15, [sp, #96] | |
| 4705 | ldp x19, x20, [sp], #112 | |
| 4706 | ret | |
| 4707 | ||
| 4708 | .L256_enc_ret: | |
| 4709 | mov w0, #0x0 | |
| 4710 | ret | |
| 4711 | .size aes_gcm_enc_256_kernel,.-aes_gcm_enc_256_kernel | |
| 4712 | ___ | |
| 4713 | ||
| 4714 | { | |
| 4715 | my $t8="v4"; | |
| 4716 | my $t8d="d4"; | |
| 4717 | my $t9="v6"; | |
| 4718 | my $t9d="d6"; | |
| 4719 | ######################################################################################### | |
| 4720 | # size_t aes_gcm_dec_256_kernel(const unsigned char *in, | |
| 4721 | # size_t len, | |
| 4722 | # unsigned char *out, | |
| 4723 | # const void *key, | |
| 4724 | # unsigned char ivec[16], | |
| 4725 | # u64 *Xi); | |
| 4726 | # | |
| 4727 | $code.=<<___; | |
| 4728 | .global aes_gcm_dec_256_kernel | |
| 4729 | .type aes_gcm_dec_256_kernel,%function | |
| 4730 | .align 4 | |
| 4731 | aes_gcm_dec_256_kernel: | |
| 4732 | cbz x1, .L256_dec_ret | |
| 4733 | stp x19, x20, [sp, #-112]! | |
| 4734 | mov x16, x4 | |
| 4735 | mov x8, x5 | |
| 4736 | stp x21, x22, [sp, #16] | |
| 4737 | stp x23, x24, [sp, #32] | |
| 4738 | stp d8, d9, [sp, #48] | |
| 4739 | stp d10, d11, [sp, #64] | |
| 4740 | stp d12, d13, [sp, #80] | |
| 4741 | stp d14, d15, [sp, #96] | |
| 4742 | ||
| 4743 | lsr $main_end_input_ptr, $bit_length, #3 @ byte_len | |
| 4744 | mov $len, $main_end_input_ptr | |
| 4745 | ldp $ctr96_b64x, $ctr96_t32x, [$counter] @ ctr96_b64, ctr96_t32 | |
| 4746 | ||
| 4747 | ldr $rk8q, [$cc, #128] @ load rk8 | |
| 4748 | sub $main_end_input_ptr, $main_end_input_ptr, #1 @ byte_len - 1 | |
| 4749 | ||
| 4750 | ldr $rk7q, [$cc, #112] @ load rk7 | |
| 4751 | and $main_end_input_ptr, $main_end_input_ptr, #0xffffffffffffffc0 @ number of bytes to be processed in main loop (at least 1 byte must be handled by tail) | |
| 4752 | ||
| 4753 | add $end_input_ptr, $input_ptr, $bit_length, lsr #3 @ end_input_ptr | |
| 4754 | ldr $rk6q, [$cc, #96] @ load rk6 | |
| 4755 | ||
| 4756 | lsr $rctr32x, $ctr96_t32x, #32 | |
| 4757 | ldr $rk5q, [$cc, #80] @ load rk5 | |
| 4758 | orr $ctr96_t32w, $ctr96_t32w, $ctr96_t32w | |
| 4759 | ||
| 4760 | ldr $rk3q, [$cc, #48] @ load rk3 | |
| 4761 | add $main_end_input_ptr, $main_end_input_ptr, $input_ptr | |
| 4762 | rev $rctr32w, $rctr32w @ rev_ctr32 | |
| 4763 | ||
| 4764 | add $rctr32w, $rctr32w, #1 @ increment rev_ctr32 | |
| 4765 | fmov $ctr3d, $ctr96_b64x @ CTR block 3 | |
| 4766 | ||
| 4767 | rev $ctr32w, $rctr32w @ CTR block 1 | |
| 4768 | add $rctr32w, $rctr32w, #1 @ CTR block 1 | |
| 4769 | fmov $ctr1d, $ctr96_b64x @ CTR block 1 | |
| 4770 | ||
| 4771 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 1 | |
| 4772 | ld1 { $ctr0b}, [$counter] @ special case vector load initial counter so we can start first AES block as quickly as possible | |
| 4773 | ||
| 4774 | fmov $ctr1.d[1], $ctr32x @ CTR block 1 | |
| 4775 | rev $ctr32w, $rctr32w @ CTR block 2 | |
| 4776 | add $rctr32w, $rctr32w, #1 @ CTR block 2 | |
| 4777 | ||
| 4778 | fmov $ctr2d, $ctr96_b64x @ CTR block 2 | |
| 4779 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 2 | |
| 4780 | ||
| 4781 | fmov $ctr2.d[1], $ctr32x @ CTR block 2 | |
| 4782 | rev $ctr32w, $rctr32w @ CTR block 3 | |
| 4783 | ||
| 4784 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 3 | |
| 4785 | ldr $rk0q, [$cc, #0] @ load rk0 | |
| 4786 | ||
| 4787 | fmov $ctr3.d[1], $ctr32x @ CTR block 3 | |
| 4788 | add $rctr32w, $rctr32w, #1 @ CTR block 3 | |
| 4789 | ||
| 4790 | ldr $rk4q, [$cc, #64] @ load rk4 | |
| 4791 | ||
| 4792 | ldr $rk13q, [$cc, #208] @ load rk13 | |
| 4793 | ||
| 4794 | ldr $rk1q, [$cc, #16] @ load rk1 | |
| 4795 | ||
| 4796 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 0 | |
| 4797 | ldr $h3q, [$current_tag, #80] @ load h3l | h3h | |
| 4798 | ext $h3b, $h3b, $h3b, #8 | |
| 4799 | ||
| 4800 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 0 | |
| 4801 | ldr $h4q, [$current_tag, #112] @ load h4l | h4h | |
| 4802 | ext $h4b, $h4b, $h4b, #8 | |
| 4803 | ||
| 4804 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 0 | |
| 4805 | ldr $h2q, [$current_tag, #64] @ load h2l | h2h | |
| 4806 | ext $h2b, $h2b, $h2b, #8 | |
| 4807 | ||
| 4808 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 0 | |
| 4809 | ldr $rk2q, [$cc, #32] @ load rk2 | |
| 4810 | ||
| 4811 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 1 | |
| 4812 | ldp $rk14_l, $rk14_h, [$cc, #224] @ load rk14 | |
| 4813 | ||
| 4814 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 1 | |
| 4815 | ld1 { $acc_lb}, [$current_tag] | |
| 4816 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 4817 | rev64 $acc_lb, $acc_lb | |
| 4818 | ||
| 4819 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 1 | |
| 4820 | ldr $rk9q, [$cc, #144] @ load rk9 | |
| 4821 | ||
| 4822 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 1 | |
| 4823 | ldr $rk12q, [$cc, #192] @ load rk12 | |
| 4824 | ||
| 4825 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 2 | |
| 4826 | ldr $h1q, [$current_tag, #32] @ load h1l | h1h | |
| 4827 | ext $h1b, $h1b, $h1b, #8 | |
| 4828 | ||
| 4829 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 2 | |
| 4830 | ldr $rk10q, [$cc, #160] @ load rk10 | |
| 4831 | ||
| 4832 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 2 | |
| 4833 | ||
| 4834 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 3 | |
| 4835 | ||
| 4836 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 2 | |
| 4837 | ||
| 4838 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 3 | |
| 4839 | ||
| 4840 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 4 | |
| 4841 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 4 blocks | |
| 4842 | ||
| 4843 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 3 | |
| 4844 | ||
| 4845 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 3 | |
| 4846 | ||
| 4847 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 4 | |
| 4848 | ||
| 4849 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 4 | |
| 4850 | ||
| 4851 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 4 | |
| 4852 | ||
| 4853 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 5 | |
| 4854 | ||
| 4855 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 5 | |
| 4856 | ||
| 4857 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 5 | |
| 4858 | ||
| 4859 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 5 | |
| 4860 | ||
| 4861 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 6 | |
| 4862 | ||
| 4863 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 6 | |
| 4864 | ||
| 4865 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 6 | |
| 4866 | ||
| 4867 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 6 | |
| 4868 | ||
| 4869 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 7 | |
| 4870 | ||
| 4871 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 7 | |
| 4872 | ||
| 4873 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 7 | |
| 4874 | ||
| 4875 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 8 | |
| 4876 | ||
| 4877 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 7 | |
| 4878 | ||
| 4879 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 8 | |
| 4880 | ||
| 4881 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 8 | |
| 4882 | ||
| 4883 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 9 | |
| 4884 | ||
| 4885 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 8 | |
| 4886 | ldr $rk11q, [$cc, #176] @ load rk11 | |
| 4887 | ||
| 4888 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 9 | |
| 4889 | ||
| 4890 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 10 | |
| 4891 | ||
| 4892 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 9 | |
| 4893 | ||
| 4894 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 10 | |
| 4895 | ||
| 4896 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 9 | |
| 4897 | ||
| 4898 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 10 | |
| 4899 | ||
| 4900 | aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 11 | |
| 4901 | ||
| 4902 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 10 | |
| 4903 | ||
| 4904 | aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 11 | |
| 4905 | ||
| 4906 | aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 11 | |
| 4907 | ||
| 4908 | aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 11 | |
| 4909 | ||
| 4910 | trn1 $acc_h.2d, $h3.2d, $h4.2d @ h4h | h3h | |
| 4911 | ||
| 4912 | trn2 $h34k.2d, $h3.2d, $h4.2d @ h4l | h3l | |
| 4913 | ||
| 4914 | trn1 $t0.2d, $h1.2d, $h2.2d @ h2h | h1h | |
| 4915 | trn2 $h12k.2d, $h1.2d, $h2.2d @ h2l | h1l | |
| 4916 | ||
| 4917 | aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 1 - round 12 | |
| 4918 | ||
| 4919 | aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 0 - round 12 | |
| 4920 | ||
| 4921 | aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 2 - round 12 | |
| 4922 | ||
| 4923 | aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 3 - round 12 | |
| 4924 | eor $h34k.16b, $h34k.16b, $acc_h.16b @ h4k | h3k | |
| 4925 | ||
| 4926 | aese $ctr1b, $rk13 @ AES block 1 - round 13 | |
| 4927 | ||
| 4928 | aese $ctr2b, $rk13 @ AES block 2 - round 13 | |
| 4929 | eor $h12k.16b, $h12k.16b, $t0.16b @ h2k | h1k | |
| 4930 | ||
| 4931 | aese $ctr3b, $rk13 @ AES block 3 - round 13 | |
| 4932 | ||
| 4933 | aese $ctr0b, $rk13 @ AES block 0 - round 13 | |
| 4934 | b.ge .L256_dec_tail @ handle tail | |
| 4935 | ||
| 4936 | ldr $res0q, [$input_ptr, #0] @ AES block 0 - load ciphertext | |
| 4937 | ||
| 4938 | ldr $res1q, [$input_ptr, #16] @ AES block 1 - load ciphertext | |
| 4939 | ||
| 4940 | rev $ctr32w, $rctr32w @ CTR block 4 | |
| 4941 | ||
| 4942 | eor $ctr0b, $res0b, $ctr0b @ AES block 0 - result | |
| 4943 | ||
| 4944 | eor $ctr1b, $res1b, $ctr1b @ AES block 1 - result | |
| 4945 | rev64 $res1b, $res1b @ GHASH block 1 | |
| 4946 | ldr $res3q, [$input_ptr, #48] @ AES block 3 - load ciphertext | |
| 4947 | ||
| 4948 | mov $output_h0, $ctr0.d[1] @ AES block 0 - mov high | |
| 4949 | ||
| 4950 | mov $output_l0, $ctr0.d[0] @ AES block 0 - mov low | |
| 4951 | rev64 $res0b, $res0b @ GHASH block 0 | |
| 4952 | add $rctr32w, $rctr32w, #1 @ CTR block 4 | |
| 4953 | ||
| 4954 | fmov $ctr0d, $ctr96_b64x @ CTR block 4 | |
| 4955 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4 | |
| 4956 | ||
| 4957 | fmov $ctr0.d[1], $ctr32x @ CTR block 4 | |
| 4958 | rev $ctr32w, $rctr32w @ CTR block 5 | |
| 4959 | add $rctr32w, $rctr32w, #1 @ CTR block 5 | |
| 4960 | ||
| 4961 | mov $output_l1, $ctr1.d[0] @ AES block 1 - mov low | |
| 4962 | ||
| 4963 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 5 | |
| 4964 | mov $output_h1, $ctr1.d[1] @ AES block 1 - mov high | |
| 4965 | eor $output_h0, $output_h0, $rk14_h @ AES block 0 - round 14 high | |
| 4966 | ||
| 4967 | eor $output_l0, $output_l0, $rk14_l @ AES block 0 - round 14 low | |
| 4968 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 0 - store result | |
| 4969 | fmov $ctr1d, $ctr96_b64x @ CTR block 5 | |
| 4970 | ||
| 4971 | ldr $res2q, [$input_ptr, #32] @ AES block 2 - load ciphertext | |
| 4972 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 4973 | ||
| 4974 | fmov $ctr1.d[1], $ctr32x @ CTR block 5 | |
| 4975 | rev $ctr32w, $rctr32w @ CTR block 6 | |
| 4976 | add $rctr32w, $rctr32w, #1 @ CTR block 6 | |
| 4977 | ||
| 4978 | eor $output_l1, $output_l1, $rk14_l @ AES block 1 - round 14 low | |
| 4979 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 6 | |
| 4980 | ||
| 4981 | eor $output_h1, $output_h1, $rk14_h @ AES block 1 - round 14 high | |
| 4982 | stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 1 - store result | |
| 4983 | ||
| 4984 | eor $ctr2b, $res2b, $ctr2b @ AES block 2 - result | |
| 4985 | cmp $input_ptr, $main_end_input_ptr @ check if we have <= 8 blocks | |
| 4986 | b.ge .L256_dec_prepretail @ do prepretail | |
| 4987 | ||
| 4988 | .L256_dec_main_loop: @ main loop start | |
| 4989 | mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low | |
| 4990 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 4991 | eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result | |
| 4992 | ||
| 4993 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 4994 | mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high | |
| 4995 | ||
| 4996 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 4997 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 | |
| 4998 | ||
| 4999 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 | |
| 5000 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 5001 | rev $ctr32w, $rctr32w @ CTR block 4k+7 | |
| 5002 | ||
| 5003 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 5004 | mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high | |
| 5005 | ||
| 5006 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 5007 | mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low | |
| 5008 | ||
| 5009 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 5010 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 5011 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 | |
| 5012 | ||
| 5013 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 5014 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 | |
| 5015 | ||
| 5016 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 5017 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 | |
| 5018 | ||
| 5019 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 5020 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 5021 | ||
| 5022 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 5023 | eor $output_h2, $output_h2, $rk14_h @ AES block 4k+2 - round 14 high | |
| 5024 | ||
| 5025 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 5026 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 5027 | ||
| 5028 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 5029 | rev64 $res2b, $res2b @ GHASH block 4k+2 | |
| 5030 | ||
| 5031 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 5032 | eor $output_l2, $output_l2, $rk14_l @ AES block 4k+2 - round 14 low | |
| 5033 | ||
| 5034 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 5035 | stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result | |
| 5036 | ||
| 5037 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 5038 | ||
| 5039 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 5040 | ||
| 5041 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 5042 | rev64 $res3b, $res3b @ GHASH block 4k+3 | |
| 5043 | ||
| 5044 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 5045 | eor $output_l3, $output_l3, $rk14_l @ AES block 4k+3 - round 14 low | |
| 5046 | ||
| 5047 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 5048 | eor $output_h3, $output_h3, $rk14_h @ AES block 4k+3 - round 14 high | |
| 5049 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 5050 | ||
| 5051 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 5052 | ||
| 5053 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 5054 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 5055 | ||
| 5056 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 5057 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 5058 | ||
| 5059 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 5060 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 | |
| 5061 | ||
| 5062 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 5063 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 5064 | ||
| 5065 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 5066 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 5067 | ||
| 5068 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 5069 | ||
| 5070 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 5071 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 5072 | ||
| 5073 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 5074 | ||
| 5075 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 5076 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 5077 | ||
| 5078 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 5079 | rev $ctr32w, $rctr32w @ CTR block 4k+8 | |
| 5080 | ||
| 5081 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 5082 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 5083 | ||
| 5084 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 5085 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+8 | |
| 5086 | ||
| 5087 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 5088 | ||
| 5089 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 5090 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 5091 | ||
| 5092 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 5093 | ||
| 5094 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 5095 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 5096 | ||
| 5097 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 5098 | ||
| 5099 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 5100 | ||
| 5101 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 5102 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 5103 | ||
| 5104 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 5105 | ||
| 5106 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 5107 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+8 | |
| 5108 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 5109 | ||
| 5110 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 5111 | ||
| 5112 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 5113 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 5114 | ||
| 5115 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 5116 | ||
| 5117 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 5118 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 5119 | ||
| 5120 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 5121 | ||
| 5122 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 5123 | movi $mod_constant.8b, #0xc2 | |
| 5124 | ||
| 5125 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 5126 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 5127 | ||
| 5128 | aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 | |
| 5129 | ||
| 5130 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 5131 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 5132 | ||
| 5133 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 5134 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 5135 | ||
| 5136 | aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 | |
| 5137 | ||
| 5138 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 5139 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 5140 | ||
| 5141 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 5142 | ldr $res0q, [$input_ptr, #0] @ AES block 4k+4 - load ciphertext | |
| 5143 | ||
| 5144 | aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 | |
| 5145 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 5146 | ||
| 5147 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 5148 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 5149 | ||
| 5150 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 5151 | ldr $res1q, [$input_ptr, #16] @ AES block 4k+5 - load ciphertext | |
| 5152 | ||
| 5153 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 5154 | eor $ctr0b, $res0b, $ctr0b @ AES block 4k+4 - result | |
| 5155 | ||
| 5156 | aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 | |
| 5157 | stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 5158 | ||
| 5159 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 5160 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 5161 | ||
| 5162 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 5163 | ldr $res3q, [$input_ptr, #48] @ AES block 4k+7 - load ciphertext | |
| 5164 | ||
| 5165 | aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 | |
| 5166 | ldr $res2q, [$input_ptr, #32] @ AES block 4k+6 - load ciphertext | |
| 5167 | ||
| 5168 | aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 | |
| 5169 | mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high | |
| 5170 | ||
| 5171 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 5172 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 5173 | ||
| 5174 | aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 | |
| 5175 | add $input_ptr, $input_ptr, #64 @ AES input_ptr update | |
| 5176 | mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low | |
| 5177 | ||
| 5178 | aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 | |
| 5179 | fmov $ctr0d, $ctr96_b64x @ CTR block 4k+8 | |
| 5180 | ||
| 5181 | aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 | |
| 5182 | fmov $ctr0.d[1], $ctr32x @ CTR block 4k+8 | |
| 5183 | ||
| 5184 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 5185 | eor $ctr1b, $res1b, $ctr1b @ AES block 4k+5 - result | |
| 5186 | rev $ctr32w, $rctr32w @ CTR block 4k+9 | |
| 5187 | ||
| 5188 | aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 | |
| 5189 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+9 | |
| 5190 | cmp $input_ptr, $main_end_input_ptr @ LOOP CONTROL | |
| 5191 | ||
| 5192 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+9 | |
| 5193 | ||
| 5194 | eor $output_l0, $output_l0, $rk14_l @ AES block 4k+4 - round 14 low | |
| 5195 | eor $output_h0, $output_h0, $rk14_h @ AES block 4k+4 - round 14 high | |
| 5196 | ||
| 5197 | mov $output_h1, $ctr1.d[1] @ AES block 4k+5 - mov high | |
| 5198 | eor $ctr2b, $res2b, $ctr2b @ AES block 4k+6 - result | |
| 5199 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 5200 | ||
| 5201 | aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 | |
| 5202 | mov $output_l1, $ctr1.d[0] @ AES block 4k+5 - mov low | |
| 5203 | ||
| 5204 | fmov $ctr1d, $ctr96_b64x @ CTR block 4k+9 | |
| 5205 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 5206 | ||
| 5207 | fmov $ctr1.d[1], $ctr32x @ CTR block 4k+9 | |
| 5208 | rev $ctr32w, $rctr32w @ CTR block 4k+10 | |
| 5209 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+10 | |
| 5210 | ||
| 5211 | aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 | |
| 5212 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+10 | |
| 5213 | ||
| 5214 | rev64 $res1b, $res1b @ GHASH block 4k+5 | |
| 5215 | eor $output_h1, $output_h1, $rk14_h @ AES block 4k+5 - round 14 high | |
| 5216 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES block 4k+4 - store result | |
| 5217 | ||
| 5218 | eor $output_l1, $output_l1, $rk14_l @ AES block 4k+5 - round 14 low | |
| 5219 | stp $output_l1, $output_h1, [$output_ptr], #16 @ AES block 4k+5 - store result | |
| 5220 | ||
| 5221 | rev64 $res0b, $res0b @ GHASH block 4k+4 | |
| 5222 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 5223 | b.lt .L256_dec_main_loop | |
| 5224 | ||
| 5225 | ||
| 5226 | .L256_dec_prepretail: @ PREPRETAIL | |
| 5227 | ext $acc_lb, $acc_lb, $acc_lb, #8 @ PRE 0 | |
| 5228 | mov $output_l2, $ctr2.d[0] @ AES block 4k+2 - mov low | |
| 5229 | eor $ctr3b, $res3b, $ctr3b @ AES block 4k+3 - result | |
| 5230 | ||
| 5231 | aese $ctr0b, $rk0 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 0 | |
| 5232 | mov $output_h2, $ctr2.d[1] @ AES block 4k+2 - mov high | |
| 5233 | ||
| 5234 | aese $ctr1b, $rk0 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 0 | |
| 5235 | fmov $ctr2d, $ctr96_b64x @ CTR block 4k+6 | |
| 5236 | ||
| 5237 | fmov $ctr2.d[1], $ctr32x @ CTR block 4k+6 | |
| 5238 | rev $ctr32w, $rctr32w @ CTR block 4k+7 | |
| 5239 | eor $res0b, $res0b, $acc_lb @ PRE 1 | |
| 5240 | ||
| 5241 | rev64 $res2b, $res2b @ GHASH block 4k+2 | |
| 5242 | orr $ctr32x, $ctr96_t32x, $ctr32x, lsl #32 @ CTR block 4k+7 | |
| 5243 | mov $output_l3, $ctr3.d[0] @ AES block 4k+3 - mov low | |
| 5244 | ||
| 5245 | aese $ctr1b, $rk1 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 1 | |
| 5246 | mov $output_h3, $ctr3.d[1] @ AES block 4k+3 - mov high | |
| 5247 | ||
| 5248 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH block 4k - low | |
| 5249 | mov $t0d, $res0.d[1] @ GHASH block 4k - mid | |
| 5250 | fmov $ctr3d, $ctr96_b64x @ CTR block 4k+7 | |
| 5251 | ||
| 5252 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH block 4k - high | |
| 5253 | fmov $ctr3.d[1], $ctr32x @ CTR block 4k+7 | |
| 5254 | ||
| 5255 | aese $ctr2b, $rk0 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 0 | |
| 5256 | mov $acc_md, $h34k.d[1] @ GHASH block 4k - mid | |
| 5257 | ||
| 5258 | aese $ctr0b, $rk1 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 1 | |
| 5259 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH block 4k - mid | |
| 5260 | ||
| 5261 | pmull2 $t1.1q, $res1.2d, $h3.2d @ GHASH block 4k+1 - high | |
| 5262 | ||
| 5263 | aese $ctr2b, $rk1 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 1 | |
| 5264 | rev64 $res3b, $res3b @ GHASH block 4k+3 | |
| 5265 | ||
| 5266 | aese $ctr3b, $rk0 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 0 | |
| 5267 | ||
| 5268 | pmull $acc_m.1q, $t0.1d, $acc_m.1d @ GHASH block 4k - mid | |
| 5269 | eor $acc_hb, $acc_hb, $t1.16b @ GHASH block 4k+1 - high | |
| 5270 | ||
| 5271 | pmull $t2.1q, $res1.1d, $h3.1d @ GHASH block 4k+1 - low | |
| 5272 | ||
| 5273 | aese $ctr3b, $rk1 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 1 | |
| 5274 | mov $t3d, $res1.d[1] @ GHASH block 4k+1 - mid | |
| 5275 | ||
| 5276 | aese $ctr0b, $rk2 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 2 | |
| 5277 | ||
| 5278 | aese $ctr1b, $rk2 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 2 | |
| 5279 | eor $acc_lb, $acc_lb, $t2.16b @ GHASH block 4k+1 - low | |
| 5280 | ||
| 5281 | aese $ctr2b, $rk2 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 2 | |
| 5282 | ||
| 5283 | aese $ctr0b, $rk3 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 3 | |
| 5284 | mov $t6d, $res2.d[1] @ GHASH block 4k+2 - mid | |
| 5285 | ||
| 5286 | aese $ctr3b, $rk2 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 2 | |
| 5287 | eor $t3.8b, $t3.8b, $res1.8b @ GHASH block 4k+1 - mid | |
| 5288 | ||
| 5289 | pmull $t5.1q, $res2.1d, $h2.1d @ GHASH block 4k+2 - low | |
| 5290 | ||
| 5291 | aese $ctr0b, $rk4 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 4 | |
| 5292 | ||
| 5293 | aese $ctr3b, $rk3 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 3 | |
| 5294 | eor $t6.8b, $t6.8b, $res2.8b @ GHASH block 4k+2 - mid | |
| 5295 | ||
| 5296 | pmull $t3.1q, $t3.1d, $h34k.1d @ GHASH block 4k+1 - mid | |
| 5297 | ||
| 5298 | aese $ctr0b, $rk5 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 5 | |
| 5299 | eor $acc_lb, $acc_lb, $t5.16b @ GHASH block 4k+2 - low | |
| 5300 | ||
| 5301 | aese $ctr3b, $rk4 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 4 | |
| 5302 | ||
| 5303 | pmull2 $t7.1q, $res3.2d, $h1.2d @ GHASH block 4k+3 - high | |
| 5304 | eor $acc_mb, $acc_mb, $t3.16b @ GHASH block 4k+1 - mid | |
| 5305 | ||
| 5306 | pmull2 $t4.1q, $res2.2d, $h2.2d @ GHASH block 4k+2 - high | |
| 5307 | ||
| 5308 | aese $ctr3b, $rk5 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 5 | |
| 5309 | ins $t6.d[1], $t6.d[0] @ GHASH block 4k+2 - mid | |
| 5310 | ||
| 5311 | aese $ctr2b, $rk3 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 3 | |
| 5312 | ||
| 5313 | aese $ctr1b, $rk3 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 3 | |
| 5314 | eor $acc_hb, $acc_hb, $t4.16b @ GHASH block 4k+2 - high | |
| 5315 | ||
| 5316 | pmull $t8.1q, $res3.1d, $h1.1d @ GHASH block 4k+3 - low | |
| 5317 | ||
| 5318 | aese $ctr2b, $rk4 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 4 | |
| 5319 | mov $t9d, $res3.d[1] @ GHASH block 4k+3 - mid | |
| 5320 | ||
| 5321 | aese $ctr1b, $rk4 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 4 | |
| 5322 | ||
| 5323 | pmull2 $t6.1q, $t6.2d, $h12k.2d @ GHASH block 4k+2 - mid | |
| 5324 | ||
| 5325 | aese $ctr2b, $rk5 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 5 | |
| 5326 | eor $t9.8b, $t9.8b, $res3.8b @ GHASH block 4k+3 - mid | |
| 5327 | ||
| 5328 | aese $ctr1b, $rk5 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 5 | |
| 5329 | ||
| 5330 | aese $ctr3b, $rk6 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 6 | |
| 5331 | eor $acc_mb, $acc_mb, $t6.16b @ GHASH block 4k+2 - mid | |
| 5332 | ||
| 5333 | aese $ctr2b, $rk6 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 6 | |
| 5334 | ||
| 5335 | aese $ctr0b, $rk6 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 6 | |
| 5336 | movi $mod_constant.8b, #0xc2 | |
| 5337 | ||
| 5338 | aese $ctr1b, $rk6 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 6 | |
| 5339 | eor $acc_lb, $acc_lb, $t8.16b @ GHASH block 4k+3 - low | |
| 5340 | ||
| 5341 | pmull $t9.1q, $t9.1d, $h12k.1d @ GHASH block 4k+3 - mid | |
| 5342 | ||
| 5343 | aese $ctr3b, $rk7 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 7 | |
| 5344 | eor $acc_hb, $acc_hb, $t7.16b @ GHASH block 4k+3 - high | |
| 5345 | ||
| 5346 | aese $ctr1b, $rk7 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 7 | |
| 5347 | ||
| 5348 | aese $ctr0b, $rk7 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 7 | |
| 5349 | eor $acc_mb, $acc_mb, $t9.16b @ GHASH block 4k+3 - mid | |
| 5350 | ||
| 5351 | aese $ctr3b, $rk8 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 8 | |
| 5352 | ||
| 5353 | aese $ctr2b, $rk7 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 7 | |
| 5354 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 5355 | ||
| 5356 | aese $ctr1b, $rk8 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 8 | |
| 5357 | ||
| 5358 | aese $ctr0b, $rk8 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 8 | |
| 5359 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 5360 | ||
| 5361 | aese $ctr2b, $rk8 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 8 | |
| 5362 | ||
| 5363 | aese $ctr1b, $rk9 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 9 | |
| 5364 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 5365 | ||
| 5366 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 5367 | ||
| 5368 | aese $ctr2b, $rk9 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 9 | |
| 5369 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 5370 | ||
| 5371 | aese $ctr3b, $rk9 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 9 | |
| 5372 | ||
| 5373 | aese $ctr0b, $rk9 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 9 | |
| 5374 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 5375 | ||
| 5376 | aese $ctr2b, $rk10 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 10 | |
| 5377 | ||
| 5378 | aese $ctr3b, $rk10 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 10 | |
| 5379 | ||
| 5380 | aese $ctr0b, $rk10 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 10 | |
| 5381 | eor $output_h2, $output_h2, $rk14_h @ AES block 4k+2 - round 14 high | |
| 5382 | ||
| 5383 | aese $ctr1b, $rk10 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 10 | |
| 5384 | eor $output_l3, $output_l3, $rk14_l @ AES block 4k+3 - round 14 low | |
| 5385 | ||
| 5386 | aese $ctr2b, $rk11 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 11 | |
| 5387 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 5388 | ||
| 5389 | aese $ctr0b, $rk11 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 11 | |
| 5390 | add $rctr32w, $rctr32w, #1 @ CTR block 4k+7 | |
| 5391 | ||
| 5392 | aese $ctr1b, $rk11 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 11 | |
| 5393 | eor $output_l2, $output_l2, $rk14_l @ AES block 4k+2 - round 14 low | |
| 5394 | ||
| 5395 | aese $ctr2b, $rk12 \n aesmc $ctr2b, $ctr2b @ AES block 4k+6 - round 12 | |
| 5396 | ||
| 5397 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 5398 | eor $output_h3, $output_h3, $rk14_h @ AES block 4k+3 - round 14 high | |
| 5399 | ||
| 5400 | aese $ctr3b, $rk11 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 11 | |
| 5401 | stp $output_l2, $output_h2, [$output_ptr], #16 @ AES block 4k+2 - store result | |
| 5402 | ||
| 5403 | aese $ctr1b, $rk12 \n aesmc $ctr1b, $ctr1b @ AES block 4k+5 - round 12 | |
| 5404 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 5405 | ||
| 5406 | aese $ctr0b, $rk12 \n aesmc $ctr0b, $ctr0b @ AES block 4k+4 - round 12 | |
| 5407 | stp $output_l3, $output_h3, [$output_ptr], #16 @ AES block 4k+3 - store result | |
| 5408 | ||
| 5409 | aese $ctr3b, $rk12 \n aesmc $ctr3b, $ctr3b @ AES block 4k+7 - round 12 | |
| 5410 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 5411 | ||
| 5412 | aese $ctr1b, $rk13 @ AES block 4k+5 - round 13 | |
| 5413 | ||
| 5414 | aese $ctr0b, $rk13 @ AES block 4k+4 - round 13 | |
| 5415 | ||
| 5416 | aese $ctr3b, $rk13 @ AES block 4k+7 - round 13 | |
| 5417 | ||
| 5418 | aese $ctr2b, $rk13 @ AES block 4k+6 - round 13 | |
| 5419 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 5420 | .L256_dec_tail: @ TAIL | |
| 5421 | ||
| 5422 | sub $main_end_input_ptr, $end_input_ptr, $input_ptr @ main_end_input_ptr is number of bytes left to process | |
| 5423 | ld1 { $res1b}, [$input_ptr], #16 @ AES block 4k+4 - load ciphertext | |
| 5424 | ||
| 5425 | eor $ctr0b, $res1b, $ctr0b @ AES block 4k+4 - result | |
| 5426 | ||
| 5427 | mov $output_l0, $ctr0.d[0] @ AES block 4k+4 - mov low | |
| 5428 | ||
| 5429 | mov $output_h0, $ctr0.d[1] @ AES block 4k+4 - mov high | |
| 5430 | ext $t0.16b, $acc_lb, $acc_lb, #8 @ prepare final partial tag | |
| 5431 | ||
| 5432 | cmp $main_end_input_ptr, #48 | |
| 5433 | ||
| 5434 | eor $output_l0, $output_l0, $rk14_l @ AES block 4k+4 - round 14 low | |
| 5435 | ||
| 5436 | eor $output_h0, $output_h0, $rk14_h @ AES block 4k+4 - round 14 high | |
| 5437 | b.gt .L256_dec_blocks_more_than_3 | |
| 5438 | ||
| 5439 | sub $rctr32w, $rctr32w, #1 | |
| 5440 | mov $ctr3b, $ctr2b | |
| 5441 | movi $acc_m.8b, #0 | |
| 5442 | ||
| 5443 | movi $acc_l.8b, #0 | |
| 5444 | cmp $main_end_input_ptr, #32 | |
| 5445 | ||
| 5446 | movi $acc_h.8b, #0 | |
| 5447 | mov $ctr2b, $ctr1b | |
| 5448 | b.gt .L256_dec_blocks_more_than_2 | |
| 5449 | ||
| 5450 | sub $rctr32w, $rctr32w, #1 | |
| 5451 | ||
| 5452 | mov $ctr3b, $ctr1b | |
| 5453 | cmp $main_end_input_ptr, #16 | |
| 5454 | b.gt .L256_dec_blocks_more_than_1 | |
| 5455 | ||
| 5456 | sub $rctr32w, $rctr32w, #1 | |
| 5457 | b .L256_dec_blocks_less_than_1 | |
| 5458 | .L256_dec_blocks_more_than_3: @ blocks left > 3 | |
| 5459 | rev64 $res0b, $res1b @ GHASH final-3 block | |
| 5460 | ld1 { $res1b}, [$input_ptr], #16 @ AES final-2 block - load ciphertext | |
| 5461 | ||
| 5462 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-3 block - store result | |
| 5463 | ||
| 5464 | mov $acc_md, $h34k.d[1] @ GHASH final-3 block - mid | |
| 5465 | ||
| 5466 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 5467 | ||
| 5468 | eor $ctr0b, $res1b, $ctr1b @ AES final-2 block - result | |
| 5469 | ||
| 5470 | mov $rk4d, $res0.d[1] @ GHASH final-3 block - mid | |
| 5471 | ||
| 5472 | mov $output_l0, $ctr0.d[0] @ AES final-2 block - mov low | |
| 5473 | ||
| 5474 | mov $output_h0, $ctr0.d[1] @ AES final-2 block - mov high | |
| 5475 | ||
| 5476 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-3 block - mid | |
| 5477 | ||
| 5478 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 5479 | ||
| 5480 | pmull2 $acc_h.1q, $res0.2d, $h4.2d @ GHASH final-3 block - high | |
| 5481 | ||
| 5482 | pmull $acc_m.1q, $rk4v.1d, $acc_m.1d @ GHASH final-3 block - mid | |
| 5483 | eor $output_l0, $output_l0, $rk14_l @ AES final-2 block - round 14 low | |
| 5484 | ||
| 5485 | pmull $acc_l.1q, $res0.1d, $h4.1d @ GHASH final-3 block - low | |
| 5486 | eor $output_h0, $output_h0, $rk14_h @ AES final-2 block - round 14 high | |
| 5487 | .L256_dec_blocks_more_than_2: @ blocks left > 2 | |
| 5488 | ||
| 5489 | rev64 $res0b, $res1b @ GHASH final-2 block | |
| 5490 | ld1 { $res1b}, [$input_ptr], #16 @ AES final-1 block - load ciphertext | |
| 5491 | ||
| 5492 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 5493 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-2 block - store result | |
| 5494 | ||
| 5495 | eor $ctr0b, $res1b, $ctr2b @ AES final-1 block - result | |
| 5496 | ||
| 5497 | mov $rk4d, $res0.d[1] @ GHASH final-2 block - mid | |
| 5498 | ||
| 5499 | pmull $rk3q1, $res0.1d, $h3.1d @ GHASH final-2 block - low | |
| 5500 | ||
| 5501 | pmull2 $rk2q1, $res0.2d, $h3.2d @ GHASH final-2 block - high | |
| 5502 | ||
| 5503 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-2 block - mid | |
| 5504 | mov $output_l0, $ctr0.d[0] @ AES final-1 block - mov low | |
| 5505 | ||
| 5506 | mov $output_h0, $ctr0.d[1] @ AES final-1 block - mov high | |
| 5507 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-2 block - low | |
| 5508 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 5509 | ||
| 5510 | pmull $rk4v.1q, $rk4v.1d, $h34k.1d @ GHASH final-2 block - mid | |
| 5511 | ||
| 5512 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-2 block - high | |
| 5513 | eor $output_l0, $output_l0, $rk14_l @ AES final-1 block - round 14 low | |
| 5514 | ||
| 5515 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-2 block - mid | |
| 5516 | eor $output_h0, $output_h0, $rk14_h @ AES final-1 block - round 14 high | |
| 5517 | .L256_dec_blocks_more_than_1: @ blocks left > 1 | |
| 5518 | ||
| 5519 | stp $output_l0, $output_h0, [$output_ptr], #16 @ AES final-1 block - store result | |
| 5520 | rev64 $res0b, $res1b @ GHASH final-1 block | |
| 5521 | ||
| 5522 | ld1 { $res1b}, [$input_ptr], #16 @ AES final block - load ciphertext | |
| 5523 | ||
| 5524 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 5525 | movi $t0.8b, #0 @ suppress further partial tag feed in | |
| 5526 | ||
| 5527 | mov $rk4d, $res0.d[1] @ GHASH final-1 block - mid | |
| 5528 | ||
| 5529 | eor $ctr0b, $res1b, $ctr3b @ AES final block - result | |
| 5530 | ||
| 5531 | pmull2 $rk2q1, $res0.2d, $h2.2d @ GHASH final-1 block - high | |
| 5532 | ||
| 5533 | eor $rk4v.8b, $rk4v.8b, $res0.8b @ GHASH final-1 block - mid | |
| 5534 | ||
| 5535 | pmull $rk3q1, $res0.1d, $h2.1d @ GHASH final-1 block - low | |
| 5536 | mov $output_l0, $ctr0.d[0] @ AES final block - mov low | |
| 5537 | ||
| 5538 | ins $rk4v.d[1], $rk4v.d[0] @ GHASH final-1 block - mid | |
| 5539 | ||
| 5540 | mov $output_h0, $ctr0.d[1] @ AES final block - mov high | |
| 5541 | ||
| 5542 | pmull2 $rk4v.1q, $rk4v.2d, $h12k.2d @ GHASH final-1 block - mid | |
| 5543 | eor $output_l0, $output_l0, $rk14_l @ AES final block - round 14 low | |
| 5544 | ||
| 5545 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final-1 block - low | |
| 5546 | ||
| 5547 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final-1 block - high | |
| 5548 | ||
| 5549 | eor $acc_mb, $acc_mb, $rk4v.16b @ GHASH final-1 block - mid | |
| 5550 | eor $output_h0, $output_h0, $rk14_h @ AES final block - round 14 high | |
| 5551 | .L256_dec_blocks_less_than_1: @ blocks left <= 1 | |
| 5552 | ||
| 5553 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 5554 | mvn $rk14_h, xzr @ rk14_h = 0xffffffffffffffff | |
| 5555 | ||
| 5556 | sub $bit_length, $bit_length, #128 @ bit_length -= 128 | |
| 5557 | mvn $rk14_l, xzr @ rk14_l = 0xffffffffffffffff | |
| 5558 | ||
| 5559 | ldp $end_input_ptr, $main_end_input_ptr, [$output_ptr] @ load existing bytes we need to not overwrite | |
| 5560 | neg $bit_length, $bit_length @ bit_length = 128 - #bits in input (in range [1,128]) | |
| 5561 | ||
| 5562 | and $bit_length, $bit_length, #127 @ bit_length %= 128 | |
| 5563 | ||
| 5564 | lsr $rk14_h, $rk14_h, $bit_length @ rk14_h is mask for top 64b of last block | |
| 5565 | cmp $bit_length, #64 | |
| 5566 | ||
| 5567 | csel $ctr32x, $rk14_l, $rk14_h, lt | |
| 5568 | csel $ctr96_b64x, $rk14_h, xzr, lt | |
| 5569 | ||
| 5570 | fmov $ctr0d, $ctr32x @ ctr0b is mask for last block | |
| 5571 | and $output_l0, $output_l0, $ctr32x | |
| 5572 | ||
| 5573 | mov $ctr0.d[1], $ctr96_b64x | |
| 5574 | bic $end_input_ptr, $end_input_ptr, $ctr32x @ mask out low existing bytes | |
| 5575 | ||
| 5576 | rev $ctr32w, $rctr32w | |
| 5577 | ||
| 5578 | bic $main_end_input_ptr, $main_end_input_ptr, $ctr96_b64x @ mask out high existing bytes | |
| 5579 | ||
| 5580 | orr $output_l0, $output_l0, $end_input_ptr | |
| 5581 | ||
| 5582 | and $output_h0, $output_h0, $ctr96_b64x | |
| 5583 | ||
| 5584 | orr $output_h0, $output_h0, $main_end_input_ptr | |
| 5585 | ||
| 5586 | and $res1b, $res1b, $ctr0b @ possibly partial last block has zeroes in highest bits | |
| 5587 | ||
| 5588 | rev64 $res0b, $res1b @ GHASH final block | |
| 5589 | ||
| 5590 | eor $res0b, $res0b, $t0.16b @ feed in partial tag | |
| 5591 | ||
| 5592 | pmull $rk3q1, $res0.1d, $h1.1d @ GHASH final block - low | |
| 5593 | ||
| 5594 | mov $t0d, $res0.d[1] @ GHASH final block - mid | |
| 5595 | ||
| 5596 | eor $t0.8b, $t0.8b, $res0.8b @ GHASH final block - mid | |
| 5597 | ||
| 5598 | pmull2 $rk2q1, $res0.2d, $h1.2d @ GHASH final block - high | |
| 5599 | ||
| 5600 | pmull $t0.1q, $t0.1d, $h12k.1d @ GHASH final block - mid | |
| 5601 | ||
| 5602 | eor $acc_hb, $acc_hb, $rk2 @ GHASH final block - high | |
| 5603 | ||
| 5604 | eor $acc_lb, $acc_lb, $rk3 @ GHASH final block - low | |
| 5605 | ||
| 5606 | eor $acc_mb, $acc_mb, $t0.16b @ GHASH final block - mid | |
| 5607 | movi $mod_constant.8b, #0xc2 | |
| 5608 | ||
| 5609 | eor $t9.16b, $acc_lb, $acc_hb @ MODULO - karatsuba tidy up | |
| 5610 | ||
| 5611 | shl $mod_constantd, $mod_constantd, #56 @ mod_constant | |
| 5612 | ||
| 5613 | eor $acc_mb, $acc_mb, $t9.16b @ MODULO - karatsuba tidy up | |
| 5614 | ||
| 5615 | pmull $mod_t.1q, $acc_h.1d, $mod_constant.1d @ MODULO - top 64b align with mid | |
| 5616 | ||
| 5617 | ext $acc_hb, $acc_hb, $acc_hb, #8 @ MODULO - other top alignment | |
| 5618 | ||
| 5619 | eor $acc_mb, $acc_mb, $mod_t.16b @ MODULO - fold into mid | |
| 5620 | ||
| 5621 | eor $acc_mb, $acc_mb, $acc_hb @ MODULO - fold into mid | |
| 5622 | ||
| 5623 | pmull $mod_constant.1q, $acc_m.1d, $mod_constant.1d @ MODULO - mid 64b align with low | |
| 5624 | ||
| 5625 | ext $acc_mb, $acc_mb, $acc_mb, #8 @ MODULO - other mid alignment | |
| 5626 | ||
| 5627 | eor $acc_lb, $acc_lb, $mod_constant.16b @ MODULO - fold into low | |
| 5628 | ||
| 5629 | stp $output_l0, $output_h0, [$output_ptr] | |
| 5630 | ||
| 5631 | str $ctr32w, [$counter, #12] @ store the updated counter | |
| 5632 | ||
| 5633 | eor $acc_lb, $acc_lb, $acc_mb @ MODULO - fold into low | |
| 5634 | ext $acc_lb, $acc_lb, $acc_lb, #8 | |
| 5635 | rev64 $acc_lb, $acc_lb | |
| 5636 | mov x0, $len | |
| 5637 | st1 { $acc_l.16b }, [$current_tag] | |
| 5638 | ||
| 5639 | ldp x21, x22, [sp, #16] | |
| 5640 | ldp x23, x24, [sp, #32] | |
| 5641 | ldp d8, d9, [sp, #48] | |
| 5642 | ldp d10, d11, [sp, #64] | |
| 5643 | ldp d12, d13, [sp, #80] | |
| 5644 | ldp d14, d15, [sp, #96] | |
| 5645 | ldp x19, x20, [sp], #112 | |
| 5646 | ret | |
| 5647 | ||
| 5648 | .L256_dec_ret: | |
| 5649 | mov w0, #0x0 | |
| 5650 | ret | |
| 5651 | .size aes_gcm_dec_256_kernel,.-aes_gcm_dec_256_kernel | |
| 5652 | ___ | |
| 5653 | } | |
| 5654 | } | |
| 5655 | ||
| 5656 | $code.=<<___; | |
| 5657 | .asciz "GHASH for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" | |
| 5658 | .align 2 | |
| 5659 | #endif | |
| 5660 | ___ | |
| 5661 | ||
| 5662 | if ($flavour =~ /64/) { ######## 64-bit code | |
| 5663 | sub unvmov { | |
| 5664 | my $arg=shift; | |
| 5665 | ||
| 5666 | $arg =~ m/q([0-9]+)#(lo|hi),\s*q([0-9]+)#(lo|hi)/o && | |
| 5667 | sprintf "ins v%d.d[%d],v%d.d[%d]",$1<8?$1:$1+8,($2 eq "lo")?0:1, | |
| 5668 | $3<8?$3:$3+8,($4 eq "lo")?0:1; | |
| 5669 | } | |
| 5670 | foreach(split("\n",$code)) { | |
| 5671 | s/@\s/\/\//o; # old->new style commentary | |
| 5672 | print $_,"\n"; | |
| 5673 | } | |
| 5674 | } else { ######## 32-bit code | |
| 5675 | sub unvdup32 { | |
| 5676 | my $arg=shift; | |
| 5677 | ||
| 5678 | $arg =~ m/q([0-9]+),\s*q([0-9]+)\[([0-3])\]/o && | |
| 5679 | sprintf "vdup.32 q%d,d%d[%d]",$1,2*$2+($3>>1),$3&1; | |
| 5680 | } | |
| 5681 | sub unvpmullp64 { | |
| 5682 | my ($mnemonic,$arg)=@_; | |
| 5683 | ||
| 5684 | if ($arg =~ m/q([0-9]+),\s*q([0-9]+),\s*q([0-9]+)/o) { | |
| 5685 | my $word = 0xf2a00e00|(($1&7)<<13)|(($1&8)<<19) | |
| 5686 | |(($2&7)<<17)|(($2&8)<<4) | |
| 5687 | |(($3&7)<<1) |(($3&8)<<2); | |
| 5688 | $word |= 0x00010001 if ($mnemonic =~ "2"); | |
| 5689 | # since ARMv7 instructions are always encoded little-endian. | |
| 5690 | # correct solution is to use .inst directive, but older%%%% | |
| 5691 | # assemblers don't implement it:-( | |
| 5692 | sprintf "INST(0x%02x,0x%02x,0x%02x,0x%02x)\t@ %s %s", | |
| 5693 | $word&0xff,($word>>8)&0xff, | |
| 5694 | ($word>>16)&0xff,($word>>24)&0xff, | |
| 5695 | $mnemonic,$arg; | |
| 5696 | } | |
| 5697 | } | |
| 5698 | ||
| 5699 | foreach(split("\n",$code)) { | |
| 5700 | s/\b[wx]([0-9]+)\b/r$1/go; # new->old registers | |
| 5701 | s/\bv([0-9])\.[12468]+[bsd]\b/q$1/go; # new->old registers | |
| 5702 | s/\/\/\s?/@ /o; # new->old style commentary | |
| 5703 | ||
| 5704 | # fix up remaining new-style suffixes | |
| 5705 | s/\],#[0-9]+/]!/o; | |
| 5706 | ||
| 5707 | s/cclr\s+([^,]+),\s*([a-z]+)/mov.$2 $1,#0/o or | |
| 5708 | s/vdup\.32\s+(.*)/unvdup32($1)/geo or | |
| 5709 | s/v?(pmull2?)\.p64\s+(.*)/unvpmullp64($1,$2)/geo or | |
| 5710 | s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo or | |
| 5711 | s/^(\s+)b\./$1b/o or | |
| 5712 | s/^(\s+)ret/$1bx\tlr/o; | |
| 5713 | ||
| 5714 | if (s/^(\s+)mov\.([a-z]+)/$1mov$2/) { | |
| 5715 | print " it $2\n"; | |
| 5716 | } | |
| 5717 | ||
| 5718 | print $_,"\n"; | |
| 5719 | } | |
| 5720 | } | |
| 5721 | ||
| a21314db | 5722 | close STDOUT or die "error closing STDOUT: $!"; # enforce flush |