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4f22f405 | 1 | /* |
48e5119a | 2 | * Copyright 2010-2018 The OpenSSL Project Authors. All Rights Reserved. |
f472ec8c | 3 | * |
81cae8ce | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
4f22f405 RS |
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 | |
f472ec8c AP |
8 | */ |
9 | ||
10 | #include <openssl/modes.h> | |
11 | ||
f472ec8c AP |
12 | #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) |
13 | typedef __int64 i64; | |
14 | typedef unsigned __int64 u64; | |
0f113f3e | 15 | # define U64(C) C##UI64 |
f472ec8c AP |
16 | #elif defined(__arch64__) |
17 | typedef long i64; | |
18 | typedef unsigned long u64; | |
0f113f3e | 19 | # define U64(C) C##UL |
f472ec8c AP |
20 | #else |
21 | typedef long long i64; | |
22 | typedef unsigned long long u64; | |
0f113f3e | 23 | # define U64(C) C##ULL |
f472ec8c AP |
24 | #endif |
25 | ||
26 | typedef unsigned int u32; | |
27 | typedef unsigned char u8; | |
28 | ||
29 | #define STRICT_ALIGNMENT 1 | |
021e5043 | 30 | #ifndef PEDANTIC |
0f113f3e MC |
31 | # if defined(__i386) || defined(__i386__) || \ |
32 | defined(__x86_64) || defined(__x86_64__) || \ | |
33 | defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \ | |
34 | defined(__aarch64__) || \ | |
35 | defined(__s390__) || defined(__s390x__) | |
1e8f69c6 AP |
36 | # undef STRICT_ALIGNMENT |
37 | # endif | |
021e5043 | 38 | #endif |
f472ec8c | 39 | |
0ecedec8 | 40 | #if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) |
1e8f69c6 AP |
41 | # if defined(__GNUC__) && __GNUC__>=2 |
42 | # if defined(__x86_64) || defined(__x86_64__) | |
2da2a434 | 43 | # define BSWAP8(x) ({ u64 ret_=(x); \ |
0f113f3e | 44 | asm ("bswapq %0" \ |
2da2a434 RL |
45 | : "+r"(ret_)); ret_; }) |
46 | # define BSWAP4(x) ({ u32 ret_=(x); \ | |
0f113f3e | 47 | asm ("bswapl %0" \ |
2da2a434 | 48 | : "+r"(ret_)); ret_; }) |
1e8f69c6 | 49 | # elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY) |
2da2a434 | 50 | # define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x); \ |
0f113f3e | 51 | asm ("bswapl %0; bswapl %1" \ |
2da2a434 RL |
52 | : "+r"(hi_),"+r"(lo_)); \ |
53 | (u64)hi_<<32|lo_; }) | |
54 | # define BSWAP4(x) ({ u32 ret_=(x); \ | |
0f113f3e | 55 | asm ("bswapl %0" \ |
2da2a434 | 56 | : "+r"(ret_)); ret_; }) |
1e8f69c6 | 57 | # elif defined(__aarch64__) |
2da2a434 | 58 | # define BSWAP8(x) ({ u64 ret_; \ |
0f113f3e | 59 | asm ("rev %0,%1" \ |
2da2a434 RL |
60 | : "=r"(ret_) : "r"(x)); ret_; }) |
61 | # define BSWAP4(x) ({ u32 ret_; \ | |
0f113f3e | 62 | asm ("rev %w0,%w1" \ |
2da2a434 | 63 | : "=r"(ret_) : "r"(x)); ret_; }) |
1e8f69c6 | 64 | # elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT) |
2da2a434 | 65 | # define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x); \ |
0f113f3e | 66 | asm ("rev %0,%0; rev %1,%1" \ |
2da2a434 RL |
67 | : "+r"(hi_),"+r"(lo_)); \ |
68 | (u64)hi_<<32|lo_; }) | |
69 | # define BSWAP4(x) ({ u32 ret_; \ | |
0f113f3e | 70 | asm ("rev %0,%1" \ |
2da2a434 RL |
71 | : "=r"(ret_) : "r"((u32)(x))); \ |
72 | ret_; }) | |
1e8f69c6 AP |
73 | # endif |
74 | # elif defined(_MSC_VER) | |
75 | # if _MSC_VER>=1300 | |
9d828b53 | 76 | # include <stdlib.h> |
1e8f69c6 | 77 | # pragma intrinsic(_byteswap_uint64,_byteswap_ulong) |
0f113f3e MC |
78 | # define BSWAP8(x) _byteswap_uint64((u64)(x)) |
79 | # define BSWAP4(x) _byteswap_ulong((u32)(x)) | |
1e8f69c6 | 80 | # elif defined(_M_IX86) |
0f113f3e MC |
81 | __inline u32 _bswap4(u32 val) |
82 | { | |
83 | _asm mov eax, val _asm bswap eax} | |
84 | # define BSWAP4(x) _bswap4(x) | |
1e8f69c6 | 85 | # endif |
f472ec8c AP |
86 | # endif |
87 | #endif | |
f472ec8c | 88 | #if defined(BSWAP4) && !defined(STRICT_ALIGNMENT) |
0f113f3e MC |
89 | # define GETU32(p) BSWAP4(*(const u32 *)(p)) |
90 | # define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v) | |
f472ec8c | 91 | #else |
0f113f3e MC |
92 | # define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3]) |
93 | # define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v)) | |
f472ec8c | 94 | #endif |
0f113f3e MC |
95 | /*- GCM definitions */ typedef struct { |
96 | u64 hi, lo; | |
97 | } u128; | |
ab8a4e54 | 98 | |
0f113f3e MC |
99 | #ifdef TABLE_BITS |
100 | # undef TABLE_BITS | |
ab8a4e54 DSH |
101 | #endif |
102 | /* | |
103 | * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should | |
d8d95832 | 104 | * never be set to 8 [or 1]. For further information see gcm128.c. |
ab8a4e54 | 105 | */ |
0f113f3e | 106 | #define TABLE_BITS 4 |
ab8a4e54 DSH |
107 | |
108 | struct gcm128_context { | |
0f113f3e MC |
109 | /* Following 6 names follow names in GCM specification */ |
110 | union { | |
111 | u64 u[2]; | |
112 | u32 d[4]; | |
113 | u8 c[16]; | |
114 | size_t t[16 / sizeof(size_t)]; | |
115 | } Yi, EKi, EK0, len, Xi, H; | |
116 | /* | |
117 | * Relative position of Xi, H and pre-computed Htable is used in some | |
118 | * assembler modules, i.e. don't change the order! | |
119 | */ | |
ab8a4e54 | 120 | #if TABLE_BITS==8 |
0f113f3e | 121 | u128 Htable[256]; |
ab8a4e54 | 122 | #else |
0f113f3e MC |
123 | u128 Htable[16]; |
124 | void (*gmult) (u64 Xi[2], const u128 Htable[16]); | |
125 | void (*ghash) (u64 Xi[2], const u128 Htable[16], const u8 *inp, | |
126 | size_t len); | |
ab8a4e54 | 127 | #endif |
0f113f3e MC |
128 | unsigned int mres, ares; |
129 | block128_f block; | |
130 | void *key; | |
c1b2569d AP |
131 | #if !defined(OPENSSL_SMALL_FOOTPRINT) |
132 | unsigned char Xn[48]; | |
133 | #endif | |
ab8a4e54 | 134 | }; |
32a2d8dd DSH |
135 | |
136 | struct xts128_context { | |
0f113f3e MC |
137 | void *key1, *key2; |
138 | block128_f block1, block2; | |
32a2d8dd DSH |
139 | }; |
140 | ||
6386b1b3 | 141 | struct ccm128_context { |
0f113f3e MC |
142 | union { |
143 | u64 u[2]; | |
144 | u8 c[16]; | |
145 | } nonce, cmac; | |
146 | u64 blocks; | |
147 | block128_f block; | |
148 | void *key; | |
6386b1b3 DSH |
149 | }; |
150 | ||
3feb6305 MC |
151 | #ifndef OPENSSL_NO_OCB |
152 | ||
81f3d632 AP |
153 | typedef union { |
154 | u64 a[2]; | |
155 | unsigned char c[16]; | |
c857a80c | 156 | } OCB_BLOCK; |
81f3d632 AP |
157 | # define ocb_block16_xor(in1,in2,out) \ |
158 | ( (out)->a[0]=(in1)->a[0]^(in2)->a[0], \ | |
159 | (out)->a[1]=(in1)->a[1]^(in2)->a[1] ) | |
160 | # if STRICT_ALIGNMENT | |
161 | # define ocb_block16_xor_misaligned(in1,in2,out) \ | |
162 | ocb_block_xor((in1)->c,(in2)->c,16,(out)->c) | |
163 | # else | |
164 | # define ocb_block16_xor_misaligned ocb_block16_xor | |
165 | # endif | |
c857a80c MC |
166 | |
167 | struct ocb128_context { | |
0f113f3e MC |
168 | /* Need both encrypt and decrypt key schedules for decryption */ |
169 | block128_f encrypt; | |
170 | block128_f decrypt; | |
171 | void *keyenc; | |
172 | void *keydec; | |
bd30091c | 173 | ocb128_f stream; /* direction dependent */ |
0f113f3e MC |
174 | /* Key dependent variables. Can be reused if key remains the same */ |
175 | size_t l_index; | |
176 | size_t max_l_index; | |
177 | OCB_BLOCK l_star; | |
178 | OCB_BLOCK l_dollar; | |
179 | OCB_BLOCK *l; | |
180 | /* Must be reset for each session */ | |
bbb02a5b MY |
181 | struct { |
182 | u64 blocks_hashed; | |
183 | u64 blocks_processed; | |
184 | OCB_BLOCK offset_aad; | |
185 | OCB_BLOCK sum; | |
186 | OCB_BLOCK offset; | |
187 | OCB_BLOCK checksum; | |
188 | } sess; | |
c857a80c | 189 | }; |
0f113f3e | 190 | #endif /* OPENSSL_NO_OCB */ |
b1ceb439 TS |
191 | |
192 | #ifndef OPENSSL_NO_SIV | |
193 | ||
194 | #include <openssl/cmac.h> | |
195 | ||
196 | #define SIV_LEN 16 | |
197 | ||
198 | typedef union siv_block_u { | |
199 | uint64_t word[SIV_LEN/sizeof(uint64_t)]; | |
200 | unsigned char byte[SIV_LEN]; | |
201 | } SIV_BLOCK; | |
202 | ||
203 | struct siv128_context { | |
204 | /* d stores intermediate results of S2V; it corresponds to D from the | |
205 | pseudocode in section 2.4 of RFC 5297. */ | |
206 | SIV_BLOCK d; | |
207 | SIV_BLOCK tag; | |
208 | EVP_CIPHER_CTX *cipher_ctx; | |
209 | CMAC_CTX *cmac_ctx_init; | |
210 | CMAC_CTX *cmac_ctx; | |
211 | int final_ret; | |
212 | int crypto_ok; | |
213 | }; | |
214 | ||
215 | #endif /* OPENSSL_NO_SIV */ |