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aa6bb135 1/*
5516c19b 2 * Copyright 2001-2019 The OpenSSL Project Authors. All Rights Reserved.
deb2c1a1 3 *
4a8b0c55 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
aa6bb135
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
deb2c1a1
DSH		 8 */
9
8c84b677 10#include <openssl/opensslconf.h>
5158c763
MC		 11#include <openssl/crypto.h>
12#include <openssl/evp.h>
13#include <openssl/err.h>
14#include <string.h>
15#include <assert.h>
16#include <openssl/aes.h>
17#include "internal/evp_int.h"
18#include "modes_lcl.h"
19#include <openssl/rand.h>
b1ceb439 20#include <openssl/cmac.h>
7141ba31 21#include "evp_locl.h"
0f113f3e
MC		 22
23typedef struct {
24 union {
25 double align;
26 AES_KEY ks;
27 } ks;
28 block128_f block;
29 union {
30 cbc128_f cbc;
31 ctr128_f ctr;
32 } stream;
33} EVP_AES_KEY;
34
35typedef struct {
36 union {
37 double align;
38 AES_KEY ks;
39 } ks; /* AES key schedule to use */
40 int key_set; /* Set if key initialised */
41 int iv_set; /* Set if an iv is set */
42 GCM128_CONTEXT gcm;
43 unsigned char *iv; /* Temporary IV store */
44 int ivlen; /* IV length */
45 int taglen;
46 int iv_gen; /* It is OK to generate IVs */
bcf082d1 47 int iv_gen_rand; /* No IV was specified, so generate a rand IV */
0f113f3e 48 int tls_aad_len; /* TLS AAD length */
d6b34570 49 uint64_t tls_enc_records; /* Number of TLS records encrypted */
0f113f3e
MC		 50 ctr128_f ctr;
51} EVP_AES_GCM_CTX;
52
53typedef struct {
54 union {
55 double align;
56 AES_KEY ks;
57 } ks1, ks2; /* AES key schedules to use */
58 XTS128_CONTEXT xts;
59 void (*stream) (const unsigned char *in,
60 unsigned char *out, size_t length,
61 const AES_KEY *key1, const AES_KEY *key2,
62 const unsigned char iv[16]);
63} EVP_AES_XTS_CTX;
64
65typedef struct {
66 union {
67 double align;
68 AES_KEY ks;
69 } ks; /* AES key schedule to use */
70 int key_set; /* Set if key initialised */
71 int iv_set; /* Set if an iv is set */
72 int tag_set; /* Set if tag is valid */
73 int len_set; /* Set if message length set */
74 int L, M; /* L and M parameters from RFC3610 */
e75c5a79 75 int tls_aad_len; /* TLS AAD length */
0f113f3e
MC		 76 CCM128_CONTEXT ccm;
77 ccm128_f str;
78} EVP_AES_CCM_CTX;
79
5158c763 80#ifndef OPENSSL_NO_OCB
0f113f3e 81typedef struct {
bdc985b1
AP		 82 union {
83 double align;
84 AES_KEY ks;
85 } ksenc; /* AES key schedule to use for encryption */
86 union {
87 double align;
88 AES_KEY ks;
89 } ksdec; /* AES key schedule to use for decryption */
0f113f3e
MC		 90 int key_set; /* Set if key initialised */
91 int iv_set; /* Set if an iv is set */
92 OCB128_CONTEXT ocb;
93 unsigned char *iv; /* Temporary IV store */
94 unsigned char tag[16];
95 unsigned char data_buf[16]; /* Store partial data blocks */
96 unsigned char aad_buf[16]; /* Store partial AAD blocks */
97 int data_buf_len;
98 int aad_buf_len;
99 int ivlen; /* IV length */
100 int taglen;
101} EVP_AES_OCB_CTX;
5158c763 102#endif
e6b336ef 103
5158c763 104#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
17f121de 105
5158c763 106#ifdef VPAES_ASM
8ca28da0 107int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
0f113f3e 108 AES_KEY *key);
8ca28da0 109int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
0f113f3e 110 AES_KEY *key);
8ca28da0
AP		 111
112void vpaes_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 113 const AES_KEY *key);
8ca28da0 114void vpaes_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 115 const AES_KEY *key);
8ca28da0
AP		 116
117void vpaes_cbc_encrypt(const unsigned char *in,
0f113f3e
MC		 118 unsigned char *out,
119 size_t length,
120 const AES_KEY *key, unsigned char *ivec, int enc);
5158c763
MC		 121#endif
122#ifdef BSAES_ASM
a75a52a4 123void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 124 size_t length, const AES_KEY *key,
125 unsigned char ivec[16], int enc);
993adc05 126void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 127 size_t len, const AES_KEY *key,
128 const unsigned char ivec[16]);
60d4e99c 129void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
0f113f3e
MC		 130 size_t len, const AES_KEY *key1,
131 const AES_KEY *key2, const unsigned char iv[16]);
60d4e99c 132void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
0f113f3e
MC		 133 size_t len, const AES_KEY *key1,
134 const AES_KEY *key2, const unsigned char iv[16]);
5158c763
MC		 135#endif
136#ifdef AES_CTR_ASM
07904e0c 137void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 138 size_t blocks, const AES_KEY *key,
139 const unsigned char ivec[AES_BLOCK_SIZE]);
5158c763
MC		 140#endif
141#ifdef AES_XTS_ASM
96cce820 142void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
0f113f3e
MC		 143 const AES_KEY *key1, const AES_KEY *key2,
144 const unsigned char iv[16]);
96cce820 145void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
0f113f3e
MC		 146 const AES_KEY *key1, const AES_KEY *key2,
147 const unsigned char iv[16]);
5158c763 148#endif
8ca28da0 149
03a5e5ae
PS		 150/* increment counter (64-bit int) by 1 */
151static void ctr64_inc(unsigned char *counter)
152{
153 int n = 8;
154 unsigned char c;
155
156 do {
157 --n;
158 c = counter[n];
159 ++c;
160 counter[n] = c;
161 if (c)
162 return;
163 } while (n);
164}
165
6944565b 166#if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
5158c763
MC		 167# include "ppc_arch.h"
168# ifdef VPAES_ASM
169# define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
de51e830 170# endif
5158c763
MC		 171# define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
172# define HWAES_set_encrypt_key aes_p8_set_encrypt_key
173# define HWAES_set_decrypt_key aes_p8_set_decrypt_key
174# define HWAES_encrypt aes_p8_encrypt
175# define HWAES_decrypt aes_p8_decrypt
176# define HWAES_cbc_encrypt aes_p8_cbc_encrypt
177# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
46f047d7
AP		 178# define HWAES_xts_encrypt aes_p8_xts_encrypt
179# define HWAES_xts_decrypt aes_p8_xts_decrypt
5158c763 180#endif
07f3e4f3 181
5158c763 182#if defined(AES_ASM) && !defined(I386_ONLY) && ( \
0f113f3e
MC		 183 ((defined(__i386) || defined(__i386__) || \
184 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
185 defined(__x86_64) || defined(__x86_64__) || \
b1a07c38 186 defined(_M_AMD64) || defined(_M_X64) )
8ca28da0 187
c5f6da54 188extern unsigned int OPENSSL_ia32cap_P[];
8ca28da0 189
5158c763
MC		 190# ifdef VPAES_ASM
191# define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
192# endif
193# ifdef BSAES_ASM
194# define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
195# endif
17f121de
AP		 196/*
197 * AES-NI section
198 */
5158c763 199# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
d1fff483
AP		 200
201int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
0f113f3e 202 AES_KEY *key);
d1fff483 203int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
0f113f3e 204 AES_KEY *key);
d1fff483
AP		 205
206void aesni_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 207 const AES_KEY *key);
d1fff483 208void aesni_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 209 const AES_KEY *key);
d1fff483
AP		 210
211void aesni_ecb_encrypt(const unsigned char *in,
0f113f3e
MC		 212 unsigned char *out,
213 size_t length, const AES_KEY *key, int enc);
d1fff483 214void aesni_cbc_encrypt(const unsigned char *in,
0f113f3e
MC		 215 unsigned char *out,
216 size_t length,
217 const AES_KEY *key, unsigned char *ivec, int enc);
d1fff483
AP		 218
219void aesni_ctr32_encrypt_blocks(const unsigned char *in,
0f113f3e
MC		 220 unsigned char *out,
221 size_t blocks,
222 const void *key, const unsigned char *ivec);
17f121de
AP		 223
224void aesni_xts_encrypt(const unsigned char *in,
0f113f3e
MC		 225 unsigned char *out,
226 size_t length,
227 const AES_KEY *key1, const AES_KEY *key2,
228 const unsigned char iv[16]);
17f121de
AP		 229
230void aesni_xts_decrypt(const unsigned char *in,
0f113f3e
MC		 231 unsigned char *out,
232 size_t length,
233 const AES_KEY *key1, const AES_KEY *key2,
234 const unsigned char iv[16]);
235
236void aesni_ccm64_encrypt_blocks(const unsigned char *in,
237 unsigned char *out,
238 size_t blocks,
239 const void *key,
240 const unsigned char ivec[16],
241 unsigned char cmac[16]);
242
243void aesni_ccm64_decrypt_blocks(const unsigned char *in,
244 unsigned char *out,
245 size_t blocks,
246 const void *key,
247 const unsigned char ivec[16],
248 unsigned char cmac[16]);
249
5158c763 250# if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
4e049c52 251size_t aesni_gcm_encrypt(const unsigned char *in,
0f113f3e
MC		 252 unsigned char *out,
253 size_t len,
254 const void *key, unsigned char ivec[16], u64 *Xi);
5158c763 255# define AES_gcm_encrypt aesni_gcm_encrypt
4e049c52 256size_t aesni_gcm_decrypt(const unsigned char *in,
0f113f3e
MC		 257 unsigned char *out,
258 size_t len,
259 const void *key, unsigned char ivec[16], u64 *Xi);
5158c763 260# define AES_gcm_decrypt aesni_gcm_decrypt
0f113f3e
MC		 261void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
262 size_t len);
5158c763 263# define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
0f113f3e 264 gctx->gcm.ghash==gcm_ghash_avx)
5158c763 265# define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
0f113f3e 266 gctx->gcm.ghash==gcm_ghash_avx)
5158c763
MC		 267# undef AES_GCM_ASM2 /* minor size optimization */
268# endif
4e049c52 269
17f121de 270static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 271 const unsigned char *iv, int enc)
272{
273 int ret, mode;
6435f0f6 274 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 275
6435f0f6 276 mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e
MC		 277 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
278 && !enc) {
6435f0f6
RL		 279 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
280 &dat->ks.ks);
0f113f3e
MC		 281 dat->block = (block128_f) aesni_decrypt;
282 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
283 (cbc128_f) aesni_cbc_encrypt : NULL;
284 } else {
6435f0f6
RL		 285 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
286 &dat->ks.ks);
0f113f3e
MC		 287 dat->block = (block128_f) aesni_encrypt;
288 if (mode == EVP_CIPH_CBC_MODE)
289 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
290 else if (mode == EVP_CIPH_CTR_MODE)
291 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
292 else
293 dat->stream.cbc = NULL;
294 }
295
296 if (ret < 0) {
297 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
298 return 0;
299 }
300
301 return 1;
302}
303
304static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
305 const unsigned char *in, size_t len)
d1fff483 306{
6435f0f6
RL		 307 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
308 EVP_CIPHER_CTX_iv_noconst(ctx),
309 EVP_CIPHER_CTX_encrypting(ctx));
d1fff483 310
0f113f3e 311 return 1;
d1fff483
AP		 312}
313
0f113f3e
MC		 314static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
315 const unsigned char *in, size_t len)
d1fff483 316{
6435f0f6 317 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
d1fff483 318
0f113f3e
MC		 319 if (len < bl)
320 return 1;
d1fff483 321
6435f0f6
RL		 322 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
323 EVP_CIPHER_CTX_encrypting(ctx));
d1fff483 324
0f113f3e 325 return 1;
d1fff483
AP		 326}
327
5158c763 328# define aesni_ofb_cipher aes_ofb_cipher
0f113f3e
MC		 329static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
330 const unsigned char *in, size_t len);
d1fff483 331
5158c763 332# define aesni_cfb_cipher aes_cfb_cipher
0f113f3e
MC		 333static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
334 const unsigned char *in, size_t len);
d1fff483 335
5158c763 336# define aesni_cfb8_cipher aes_cfb8_cipher
0f113f3e
MC		 337static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
338 const unsigned char *in, size_t len);
d1fff483 339
5158c763 340# define aesni_cfb1_cipher aes_cfb1_cipher
0f113f3e
MC		 341static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
342 const unsigned char *in, size_t len);
d1fff483 343
5158c763 344# define aesni_ctr_cipher aes_ctr_cipher
17f121de 345static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 346 const unsigned char *in, size_t len);
d1fff483 347
17f121de 348static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 349 const unsigned char *iv, int enc)
350{
6435f0f6 351 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 352 if (!iv && !key)
353 return 1;
354 if (key) {
6435f0f6
RL		 355 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
356 &gctx->ks.ks);
0f113f3e
MC		 357 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
358 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
359 /*
360 * If we have an iv can set it directly, otherwise use saved IV.
361 */
362 if (iv == NULL && gctx->iv_set)
363 iv = gctx->iv;
364 if (iv) {
365 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
366 gctx->iv_set = 1;
367 }
368 gctx->key_set = 1;
369 } else {
370 /* If key set use IV, otherwise copy */
371 if (gctx->key_set)
372 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
373 else
374 memcpy(gctx->iv, iv, gctx->ivlen);
375 gctx->iv_set = 1;
376 gctx->iv_gen = 0;
377 }
378 return 1;
379}
380
5158c763 381# define aesni_gcm_cipher aes_gcm_cipher
17f121de 382static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 383 const unsigned char *in, size_t len);
17f121de
AP		 384
385static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 386 const unsigned char *iv, int enc)
387{
6435f0f6 388 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 389 if (!iv && !key)
390 return 1;
391
392 if (key) {
393 /* key_len is two AES keys */
394 if (enc) {
6435f0f6
RL		 395 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
396 &xctx->ks1.ks);
0f113f3e
MC		 397 xctx->xts.block1 = (block128_f) aesni_encrypt;
398 xctx->stream = aesni_xts_encrypt;
399 } else {
6435f0f6
RL		 400 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
401 &xctx->ks1.ks);
0f113f3e
MC		 402 xctx->xts.block1 = (block128_f) aesni_decrypt;
403 xctx->stream = aesni_xts_decrypt;
404 }
405
6435f0f6
RL		 406 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
407 EVP_CIPHER_CTX_key_length(ctx) * 4,
408 &xctx->ks2.ks);
0f113f3e
MC		 409 xctx->xts.block2 = (block128_f) aesni_encrypt;
410
411 xctx->xts.key1 = &xctx->ks1;
412 }
413
414 if (iv) {
415 xctx->xts.key2 = &xctx->ks2;
6435f0f6 416 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 417 }
418
419 return 1;
420}
421
5158c763 422# define aesni_xts_cipher aes_xts_cipher
17f121de 423static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 424 const unsigned char *in, size_t len);
17f121de
AP		 425
426static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 427 const unsigned char *iv, int enc)
428{
6435f0f6 429 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 430 if (!iv && !key)
431 return 1;
432 if (key) {
6435f0f6
RL		 433 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
434 &cctx->ks.ks);
0f113f3e
MC		 435 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
436 &cctx->ks, (block128_f) aesni_encrypt);
437 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
438 (ccm128_f) aesni_ccm64_decrypt_blocks;
439 cctx->key_set = 1;
440 }
441 if (iv) {
6435f0f6 442 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 443 cctx->iv_set = 1;
444 }
445 return 1;
446}
447
5158c763 448# define aesni_ccm_cipher aes_ccm_cipher
17f121de 449static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 450 const unsigned char *in, size_t len);
17f121de 451
5158c763 452# ifndef OPENSSL_NO_OCB
bd30091c
AP		 453void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
454 size_t blocks, const void *key,
455 size_t start_block_num,
456 unsigned char offset_i[16],
457 const unsigned char L_[][16],
458 unsigned char checksum[16]);
459void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
460 size_t blocks, const void *key,
461 size_t start_block_num,
462 unsigned char offset_i[16],
463 const unsigned char L_[][16],
464 unsigned char checksum[16]);
465
e6b336ef 466static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 467 const unsigned char *iv, int enc)
468{
6435f0f6 469 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 470 if (!iv && !key)
471 return 1;
472 if (key) {
473 do {
474 /*
475 * We set both the encrypt and decrypt key here because decrypt
476 * needs both. We could possibly optimise to remove setting the
477 * decrypt for an encryption operation.
478 */
6435f0f6
RL		 479 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
480 &octx->ksenc.ks);
481 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
482 &octx->ksdec.ks);
bdc985b1
AP		 483 if (!CRYPTO_ocb128_init(&octx->ocb,
484 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 485 (block128_f) aesni_encrypt,
bd30091c
AP		 486 (block128_f) aesni_decrypt,
487 enc ? aesni_ocb_encrypt
488 : aesni_ocb_decrypt))
0f113f3e
MC		 489 return 0;
490 }
491 while (0);
492
493 /*
494 * If we have an iv we can set it directly, otherwise use saved IV.
495 */
496 if (iv == NULL && octx->iv_set)
497 iv = octx->iv;
498 if (iv) {
499 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
500 != 1)
501 return 0;
502 octx->iv_set = 1;
503 }
504 octx->key_set = 1;
505 } else {
506 /* If key set use IV, otherwise copy */
507 if (octx->key_set)
508 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
509 else
510 memcpy(octx->iv, iv, octx->ivlen);
511 octx->iv_set = 1;
512 }
513 return 1;
514}
515
5158c763 516# define aesni_ocb_cipher aes_ocb_cipher
e6b336ef 517static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 518 const unsigned char *in, size_t len);
5158c763 519# endif /* OPENSSL_NO_OCB */
e6b336ef 520
5158c763 521# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
17f121de 522static const EVP_CIPHER aesni_##keylen##_##mode = { \
0f113f3e
MC		 523 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
524 flags|EVP_CIPH_##MODE##_MODE, \
525 aesni_init_key, \
526 aesni_##mode##_cipher, \
527 NULL, \
528 sizeof(EVP_AES_KEY), \
529 NULL,NULL,NULL,NULL }; \
17f121de 530static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 531 nid##_##keylen##_##nmode,blocksize, \
532 keylen/8,ivlen, \
533 flags|EVP_CIPH_##MODE##_MODE, \
534 aes_init_key, \
535 aes_##mode##_cipher, \
536 NULL, \
537 sizeof(EVP_AES_KEY), \
538 NULL,NULL,NULL,NULL }; \
17f121de 539const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
8ca28da0 540{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
17f121de 541
5158c763 542# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
17f121de 543static const EVP_CIPHER aesni_##keylen##_##mode = { \
0f113f3e 544 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 545 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
546 ivlen, \
0f113f3e
MC		 547 flags|EVP_CIPH_##MODE##_MODE, \
548 aesni_##mode##_init_key, \
549 aesni_##mode##_cipher, \
550 aes_##mode##_cleanup, \
551 sizeof(EVP_AES_##MODE##_CTX), \
552 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de 553static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e 554 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 555 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
556 ivlen, \
0f113f3e
MC		 557 flags|EVP_CIPH_##MODE##_MODE, \
558 aes_##mode##_init_key, \
559 aes_##mode##_cipher, \
560 aes_##mode##_cleanup, \
561 sizeof(EVP_AES_##MODE##_CTX), \
562 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de 563const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
8ca28da0 564{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
d1fff483 565
5158c763 566#elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
c5f6da54 567
5158c763 568# include "sparc_arch.h"
c5f6da54
AP		 569
570extern unsigned int OPENSSL_sparcv9cap_P[];
571
6944565b
AP		 572/*
573 * Initial Fujitsu SPARC64 X support
574 */
575# define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
576# define HWAES_set_encrypt_key aes_fx_set_encrypt_key
577# define HWAES_set_decrypt_key aes_fx_set_decrypt_key
578# define HWAES_encrypt aes_fx_encrypt
579# define HWAES_decrypt aes_fx_decrypt
365f95ad
AP		 580# define HWAES_cbc_encrypt aes_fx_cbc_encrypt
581# define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
6944565b 582
5158c763 583# define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
c5f6da54 584
0f113f3e
MC		 585void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
586void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
587void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
588 const AES_KEY *key);
589void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
590 const AES_KEY *key);
c5f6da54
AP		 591/*
592 * Key-length specific subroutines were chosen for following reason.
593 * Each SPARC T4 core can execute up to 8 threads which share core's
594 * resources. Loading as much key material to registers allows to
595 * minimize references to shared memory interface, as well as amount
596 * of instructions in inner loops [much needed on T4]. But then having
597 * non-key-length specific routines would require conditional branches
598 * either in inner loops or on subroutines' entries. Former is hardly
599 * acceptable, while latter means code size increase to size occupied
0d4fb843 600 * by multiple key-length specific subroutines, so why fight?
c5f6da54 601 */
0f113f3e
MC		 602void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
603 size_t len, const AES_KEY *key,
604 unsigned char *ivec);
605void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
606 size_t len, const AES_KEY *key,
607 unsigned char *ivec);
608void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
609 size_t len, const AES_KEY *key,
610 unsigned char *ivec);
611void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
612 size_t len, const AES_KEY *key,
613 unsigned char *ivec);
614void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
615 size_t len, const AES_KEY *key,
616 unsigned char *ivec);
617void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
618 size_t len, const AES_KEY *key,
619 unsigned char *ivec);
620void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
621 size_t blocks, const AES_KEY *key,
622 unsigned char *ivec);
623void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
624 size_t blocks, const AES_KEY *key,
625 unsigned char *ivec);
626void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
627 size_t blocks, const AES_KEY *key,
628 unsigned char *ivec);
629void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
630 size_t blocks, const AES_KEY *key1,
631 const AES_KEY *key2, const unsigned char *ivec);
632void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
633 size_t blocks, const AES_KEY *key1,
634 const AES_KEY *key2, const unsigned char *ivec);
635void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
636 size_t blocks, const AES_KEY *key1,
637 const AES_KEY *key2, const unsigned char *ivec);
638void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
639 size_t blocks, const AES_KEY *key1,
640 const AES_KEY *key2, const unsigned char *ivec);
c5f6da54
AP		 641
642static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 643 const unsigned char *iv, int enc)
644{
645 int ret, mode, bits;
6435f0f6 646 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 647
6435f0f6
RL		 648 mode = EVP_CIPHER_CTX_mode(ctx);
649 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 650 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
651 && !enc) {
652 ret = 0;
6435f0f6 653 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
0f113f3e
MC		 654 dat->block = (block128_f) aes_t4_decrypt;
655 switch (bits) {
656 case 128:
657 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
658 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
659 break;
660 case 192:
661 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
662 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
663 break;
664 case 256:
665 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
666 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
667 break;
668 default:
669 ret = -1;
670 }
671 } else {
672 ret = 0;
6435f0f6 673 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
0f113f3e
MC		 674 dat->block = (block128_f) aes_t4_encrypt;
675 switch (bits) {
676 case 128:
677 if (mode == EVP_CIPH_CBC_MODE)
678 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
679 else if (mode == EVP_CIPH_CTR_MODE)
680 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
681 else
682 dat->stream.cbc = NULL;
683 break;
684 case 192:
685 if (mode == EVP_CIPH_CBC_MODE)
686 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
687 else if (mode == EVP_CIPH_CTR_MODE)
688 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
689 else
690 dat->stream.cbc = NULL;
691 break;
692 case 256:
693 if (mode == EVP_CIPH_CBC_MODE)
694 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
695 else if (mode == EVP_CIPH_CTR_MODE)
696 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
697 else
698 dat->stream.cbc = NULL;
699 break;
700 default:
701 ret = -1;
702 }
703 }
704
705 if (ret < 0) {
706 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
707 return 0;
708 }
709
710 return 1;
711}
712
5158c763 713# define aes_t4_cbc_cipher aes_cbc_cipher
0f113f3e
MC		 714static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
715 const unsigned char *in, size_t len);
716
5158c763 717# define aes_t4_ecb_cipher aes_ecb_cipher
0f113f3e
MC		 718static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
719 const unsigned char *in, size_t len);
720
5158c763 721# define aes_t4_ofb_cipher aes_ofb_cipher
0f113f3e
MC		 722static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
723 const unsigned char *in, size_t len);
724
5158c763 725# define aes_t4_cfb_cipher aes_cfb_cipher
0f113f3e
MC		 726static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
727 const unsigned char *in, size_t len);
728
5158c763 729# define aes_t4_cfb8_cipher aes_cfb8_cipher
0f113f3e
MC		 730static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
731 const unsigned char *in, size_t len);
732
5158c763 733# define aes_t4_cfb1_cipher aes_cfb1_cipher
0f113f3e
MC		 734static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
735 const unsigned char *in, size_t len);
736
5158c763 737# define aes_t4_ctr_cipher aes_ctr_cipher
c5f6da54 738static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 739 const unsigned char *in, size_t len);
c5f6da54
AP		 740
741static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 742 const unsigned char *iv, int enc)
743{
6435f0f6 744 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 745 if (!iv && !key)
746 return 1;
747 if (key) {
6435f0f6 748 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 749 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
750 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
751 (block128_f) aes_t4_encrypt);
752 switch (bits) {
753 case 128:
754 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
755 break;
756 case 192:
757 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
758 break;
759 case 256:
760 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
761 break;
762 default:
763 return 0;
764 }
765 /*
766 * If we have an iv can set it directly, otherwise use saved IV.
767 */
768 if (iv == NULL && gctx->iv_set)
769 iv = gctx->iv;
770 if (iv) {
771 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
772 gctx->iv_set = 1;
773 }
774 gctx->key_set = 1;
775 } else {
776 /* If key set use IV, otherwise copy */
777 if (gctx->key_set)
778 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
779 else
780 memcpy(gctx->iv, iv, gctx->ivlen);
781 gctx->iv_set = 1;
782 gctx->iv_gen = 0;
783 }
784 return 1;
785}
786
5158c763 787# define aes_t4_gcm_cipher aes_gcm_cipher
c5f6da54 788static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 789 const unsigned char *in, size_t len);
c5f6da54
AP		 790
791static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 792 const unsigned char *iv, int enc)
793{
6435f0f6 794 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 795 if (!iv && !key)
796 return 1;
797
798 if (key) {
6435f0f6 799 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
0f113f3e
MC		 800 xctx->stream = NULL;
801 /* key_len is two AES keys */
802 if (enc) {
803 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
804 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
805 switch (bits) {
806 case 128:
807 xctx->stream = aes128_t4_xts_encrypt;
808 break;
0f113f3e
MC		 809 case 256:
810 xctx->stream = aes256_t4_xts_encrypt;
811 break;
812 default:
813 return 0;
814 }
815 } else {
6435f0f6
RL		 816 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
817 &xctx->ks1.ks);
0f113f3e
MC		 818 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
819 switch (bits) {
820 case 128:
821 xctx->stream = aes128_t4_xts_decrypt;
822 break;
0f113f3e
MC		 823 case 256:
824 xctx->stream = aes256_t4_xts_decrypt;
825 break;
826 default:
827 return 0;
828 }
829 }
830
6435f0f6
RL		 831 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
832 EVP_CIPHER_CTX_key_length(ctx) * 4,
833 &xctx->ks2.ks);
0f113f3e
MC		 834 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
835
836 xctx->xts.key1 = &xctx->ks1;
837 }
838
839 if (iv) {
840 xctx->xts.key2 = &xctx->ks2;
6435f0f6 841 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 842 }
843
844 return 1;
845}
846
5158c763 847# define aes_t4_xts_cipher aes_xts_cipher
c5f6da54 848static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 849 const unsigned char *in, size_t len);
c5f6da54
AP		 850
851static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 852 const unsigned char *iv, int enc)
853{
6435f0f6 854 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 855 if (!iv && !key)
856 return 1;
857 if (key) {
6435f0f6 858 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 859 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
860 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
861 &cctx->ks, (block128_f) aes_t4_encrypt);
bdc985b1 862 cctx->str = NULL;
0f113f3e
MC		 863 cctx->key_set = 1;
864 }
865 if (iv) {
6435f0f6 866 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 867 cctx->iv_set = 1;
868 }
869 return 1;
870}
871
5158c763 872# define aes_t4_ccm_cipher aes_ccm_cipher
c5f6da54 873static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 874 const unsigned char *in, size_t len);
c5f6da54 875
5158c763 876# ifndef OPENSSL_NO_OCB
e6b336ef 877static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 878 const unsigned char *iv, int enc)
879{
6435f0f6 880 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 881 if (!iv && !key)
882 return 1;
883 if (key) {
884 do {
885 /*
886 * We set both the encrypt and decrypt key here because decrypt
887 * needs both. We could possibly optimise to remove setting the
888 * decrypt for an encryption operation.
889 */
6435f0f6
RL		 890 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
891 &octx->ksenc.ks);
892 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
893 &octx->ksdec.ks);
bdc985b1
AP		 894 if (!CRYPTO_ocb128_init(&octx->ocb,
895 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 896 (block128_f) aes_t4_encrypt,
02dc0b82
AP		 897 (block128_f) aes_t4_decrypt,
898 NULL))
0f113f3e
MC		 899 return 0;
900 }
901 while (0);
902
903 /*
904 * If we have an iv we can set it directly, otherwise use saved IV.
905 */
906 if (iv == NULL && octx->iv_set)
907 iv = octx->iv;
908 if (iv) {
909 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
910 != 1)
911 return 0;
912 octx->iv_set = 1;
913 }
914 octx->key_set = 1;
915 } else {
916 /* If key set use IV, otherwise copy */
917 if (octx->key_set)
918 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
919 else
920 memcpy(octx->iv, iv, octx->ivlen);
921 octx->iv_set = 1;
922 }
923 return 1;
924}
925
5158c763 926# define aes_t4_ocb_cipher aes_ocb_cipher
e6b336ef 927static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 928 const unsigned char *in, size_t len);
5158c763 929# endif /* OPENSSL_NO_OCB */
e6b336ef 930
87d06aed
MC		 931# ifndef OPENSSL_NO_SIV
932# define aes_t4_siv_init_key aes_siv_init_key
933# define aes_t4_siv_cipher aes_siv_cipher
934# endif /* OPENSSL_NO_SIV */
935
5158c763 936# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
c5f6da54 937static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
0f113f3e
MC		 938 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
939 flags|EVP_CIPH_##MODE##_MODE, \
940 aes_t4_init_key, \
941 aes_t4_##mode##_cipher, \
942 NULL, \
943 sizeof(EVP_AES_KEY), \
944 NULL,NULL,NULL,NULL }; \
c5f6da54 945static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 946 nid##_##keylen##_##nmode,blocksize, \
947 keylen/8,ivlen, \
948 flags|EVP_CIPH_##MODE##_MODE, \
949 aes_init_key, \
950 aes_##mode##_cipher, \
951 NULL, \
952 sizeof(EVP_AES_KEY), \
953 NULL,NULL,NULL,NULL }; \
c5f6da54
AP		 954const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
955{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
956
5158c763 957# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
c5f6da54 958static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
0f113f3e 959 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 960 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
961 ivlen, \
0f113f3e
MC		 962 flags|EVP_CIPH_##MODE##_MODE, \
963 aes_t4_##mode##_init_key, \
964 aes_t4_##mode##_cipher, \
965 aes_##mode##_cleanup, \
966 sizeof(EVP_AES_##MODE##_CTX), \
967 NULL,NULL,aes_##mode##_ctrl,NULL }; \
c5f6da54 968static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e 969 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 970 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
971 ivlen, \
0f113f3e
MC		 972 flags|EVP_CIPH_##MODE##_MODE, \
973 aes_##mode##_init_key, \
974 aes_##mode##_cipher, \
975 aes_##mode##_cleanup, \
976 sizeof(EVP_AES_##MODE##_CTX), \
977 NULL,NULL,aes_##mode##_ctrl,NULL }; \
c5f6da54
AP		 978const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
979{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
980
96530eea
PS		 981#elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
982/*
983 * IBM S390X support
984 */
985# include "s390x_arch.h"
986
55bd169f
PS		 987typedef struct {
988 union {
989 double align;
990 /*-
991 * KM-AES parameter block - begin
992 * (see z/Architecture Principles of Operation >= SA22-7832-06)
993 */
994 struct {
995 unsigned char k[32];
996 } param;
997 /* KM-AES parameter block - end */
998 } km;
999 unsigned int fc;
1000} S390X_AES_ECB_CTX;
1001
dacd2a87
PS		 1002typedef struct {
1003 union {
1004 double align;
1005 /*-
1006 * KMO-AES parameter block - begin
1007 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1008 */
1009 struct {
1010 unsigned char cv[16];
1011 unsigned char k[32];
1012 } param;
1013 /* KMO-AES parameter block - end */
1014 } kmo;
1015 unsigned int fc;
1016
1017 int res;
1018} S390X_AES_OFB_CTX;
1019
74d38a86
PS		 1020typedef struct {
1021 union {
1022 double align;
1023 /*-
1024 * KMF-AES parameter block - begin
1025 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1026 */
1027 struct {
1028 unsigned char cv[16];
1029 unsigned char k[32];
1030 } param;
1031 /* KMF-AES parameter block - end */
1032 } kmf;
1033 unsigned int fc;
1034
1035 int res;
1036} S390X_AES_CFB_CTX;
1037
96530eea
PS		 1038typedef struct {
1039 union {
1040 double align;
1041 /*-
5d2a6f4b
PS		 1042 * KMA-GCM-AES parameter block - begin
1043 * (see z/Architecture Principles of Operation >= SA22-7832-11)
96530eea
PS		 1044 */
1045 struct {
1046 unsigned char reserved[12];
1047 union {
1048 unsigned int w;
1049 unsigned char b[4];
1050 } cv;
1051 union {
1052 unsigned long long g[2];
1053 unsigned char b[16];
1054 } t;
1055 unsigned char h[16];
1056 unsigned long long taadl;
1057 unsigned long long tpcl;
1058 union {
1059 unsigned long long g[2];
1060 unsigned int w[4];
1061 } j0;
1062 unsigned char k[32];
1063 } param;
5d2a6f4b 1064 /* KMA-GCM-AES parameter block - end */
96530eea
PS		 1065 } kma;
1066 unsigned int fc;
1067 int key_set;
1068
1069 unsigned char *iv;
1070 int ivlen;
1071 int iv_set;
1072 int iv_gen;
1073
1074 int taglen;
1075
1076 unsigned char ares[16];
1077 unsigned char mres[16];
1078 unsigned char kres[16];
1079 int areslen;
1080 int mreslen;
1081 int kreslen;
1082
1083 int tls_aad_len;
d6b34570 1084 uint64_t tls_enc_records; /* Number of TLS records encrypted */
96530eea
PS		 1085} S390X_AES_GCM_CTX;
1086
39f5b069
PS		 1087typedef struct {
1088 union {
1089 double align;
1090 /*-
1091 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1092 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1093 * rounds field is used to store the function code and that the key
1094 * schedule is not stored (if aes hardware support is detected).
1095 */
1096 struct {
1097 unsigned char pad[16];
1098 AES_KEY k;
1099 } key;
1100
1101 struct {
1102 /*-
1103 * KMAC-AES parameter block - begin
1104 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1105 */
1106 struct {
1107 union {
1108 unsigned long long g[2];
1109 unsigned char b[16];
1110 } icv;
1111 unsigned char k[32];
1112 } kmac_param;
1113 /* KMAC-AES paramater block - end */
1114
1115 union {
1116 unsigned long long g[2];
1117 unsigned char b[16];
1118 } nonce;
1119 union {
1120 unsigned long long g[2];
1121 unsigned char b[16];
1122 } buf;
1123
1124 unsigned long long blocks;
1125 int l;
1126 int m;
1127 int tls_aad_len;
1128 int iv_set;
1129 int tag_set;
1130 int len_set;
1131 int key_set;
1132
1133 unsigned char pad[140];
1134 unsigned int fc;
1135 } ccm;
1136 } aes;
1137} S390X_AES_CCM_CTX;
1138
55bd169f
PS		 1139/* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1140# define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1141
1142/* Most modes of operation need km for partial block processing. */
1143# define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1144 S390X_CAPBIT(S390X_AES_128))
1145# define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1146 S390X_CAPBIT(S390X_AES_192))
1147# define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1148 S390X_CAPBIT(S390X_AES_256))
96530eea
PS		 1149
1150# define s390x_aes_init_key aes_init_key
1151static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1152 const unsigned char *iv, int enc);
1153
1154# define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1155# define S390X_aes_192_cbc_CAPABLE 1
1156# define S390X_aes_256_cbc_CAPABLE 1
55bd169f
PS		 1157# define S390X_AES_CBC_CTX EVP_AES_KEY
1158
1159# define s390x_aes_cbc_init_key aes_init_key
96530eea
PS		 1160
1161# define s390x_aes_cbc_cipher aes_cbc_cipher
1162static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1163 const unsigned char *in, size_t len);
1164
55bd169f
PS		 1165# define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1166# define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1167# define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1168
1169static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
1170 const unsigned char *key,
1171 const unsigned char *iv, int enc)
1172{
1173 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1174 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1175
1176 cctx->fc = S390X_AES_FC(keylen);
1177 if (!enc)
1178 cctx->fc |= S390X_DECRYPT;
1179
1180 memcpy(cctx->km.param.k, key, keylen);
1181 return 1;
1182}
96530eea 1183
96530eea 1184static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
55bd169f
PS		 1185 const unsigned char *in, size_t len)
1186{
1187 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1188
1189 s390x_km(in, len, out, cctx->fc, &cctx->km.param);
1190 return 1;
1191}
96530eea 1192
dacd2a87
PS		 1193# define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1194 (OPENSSL_s390xcap_P.kmo[0] & \
1195 S390X_CAPBIT(S390X_AES_128)))
1196# define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1197 (OPENSSL_s390xcap_P.kmo[0] & \
1198 S390X_CAPBIT(S390X_AES_192)))
1199# define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1200 (OPENSSL_s390xcap_P.kmo[0] & \
1201 S390X_CAPBIT(S390X_AES_256)))
1202
1203static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
1204 const unsigned char *key,
1205 const unsigned char *ivec, int enc)
1206{
1207 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1208 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1209 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1210 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
55bd169f 1211
dacd2a87
PS		 1212 memcpy(cctx->kmo.param.cv, iv, ivlen);
1213 memcpy(cctx->kmo.param.k, key, keylen);
1214 cctx->fc = S390X_AES_FC(keylen);
1215 cctx->res = 0;
1216 return 1;
1217}
96530eea 1218
96530eea 1219static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
dacd2a87
PS		 1220 const unsigned char *in, size_t len)
1221{
1222 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1223 int n = cctx->res;
1224 int rem;
1225
1226 while (n && len) {
1227 *out = *in ^ cctx->kmo.param.cv[n];
1228 n = (n + 1) & 0xf;
1229 --len;
1230 ++in;
1231 ++out;
1232 }
1233
1234 rem = len & 0xf;
1235
1236 len &= ~(size_t)0xf;
1237 if (len) {
1238 s390x_kmo(in, len, out, cctx->fc, &cctx->kmo.param);
1239
1240 out += len;
1241 in += len;
1242 }
1243
1244 if (rem) {
1245 s390x_km(cctx->kmo.param.cv, 16, cctx->kmo.param.cv, cctx->fc,
1246 cctx->kmo.param.k);
1247
1248 while (rem--) {
1249 out[n] = in[n] ^ cctx->kmo.param.cv[n];
1250 ++n;
1251 }
1252 }
1253
1254 cctx->res = n;
1255 return 1;
1256}
96530eea 1257
74d38a86
PS		 1258# define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1259 (OPENSSL_s390xcap_P.kmf[0] & \
1260 S390X_CAPBIT(S390X_AES_128)))
1261# define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1262 (OPENSSL_s390xcap_P.kmf[0] & \
1263 S390X_CAPBIT(S390X_AES_192)))
1264# define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1265 (OPENSSL_s390xcap_P.kmf[0] & \
1266 S390X_CAPBIT(S390X_AES_256)))
1267
1268static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
1269 const unsigned char *key,
1270 const unsigned char *ivec, int enc)
1271{
1272 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1273 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1274 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1275 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1276
1277 cctx->fc = S390X_AES_FC(keylen);
1278 cctx->fc |= 16 << 24; /* 16 bytes cipher feedback */
1279 if (!enc)
1280 cctx->fc |= S390X_DECRYPT;
55bd169f 1281
74d38a86
PS		 1282 cctx->res = 0;
1283 memcpy(cctx->kmf.param.cv, iv, ivlen);
1284 memcpy(cctx->kmf.param.k, key, keylen);
1285 return 1;
1286}
96530eea 1287
96530eea 1288static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
74d38a86
PS		 1289 const unsigned char *in, size_t len)
1290{
1291 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1292 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1293 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1294 int n = cctx->res;
1295 int rem;
1296 unsigned char tmp;
1297
1298 while (n && len) {
1299 tmp = *in;
1300 *out = cctx->kmf.param.cv[n] ^ tmp;
1301 cctx->kmf.param.cv[n] = enc ? *out : tmp;
1302 n = (n + 1) & 0xf;
1303 --len;
1304 ++in;
1305 ++out;
1306 }
1307
1308 rem = len & 0xf;
1309
1310 len &= ~(size_t)0xf;
1311 if (len) {
1312 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1313
1314 out += len;
1315 in += len;
1316 }
1317
1318 if (rem) {
1319 s390x_km(cctx->kmf.param.cv, 16, cctx->kmf.param.cv,
1320 S390X_AES_FC(keylen), cctx->kmf.param.k);
1321
1322 while (rem--) {
1323 tmp = in[n];
1324 out[n] = cctx->kmf.param.cv[n] ^ tmp;
1325 cctx->kmf.param.cv[n] = enc ? out[n] : tmp;
1326 ++n;
1327 }
1328 }
96530eea 1329
74d38a86
PS		 1330 cctx->res = n;
1331 return 1;
1332}
1333
1334# define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1335 S390X_CAPBIT(S390X_AES_128))
1336# define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1337 S390X_CAPBIT(S390X_AES_192))
1338# define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1339 S390X_CAPBIT(S390X_AES_256))
1340
1341static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
1342 const unsigned char *key,
1343 const unsigned char *ivec, int enc)
1344{
1345 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1346 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1347 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1348 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1349
1350 cctx->fc = S390X_AES_FC(keylen);
1351 cctx->fc |= 1 << 24; /* 1 byte cipher feedback */
1352 if (!enc)
1353 cctx->fc |= S390X_DECRYPT;
96530eea 1354
74d38a86
PS		 1355 memcpy(cctx->kmf.param.cv, iv, ivlen);
1356 memcpy(cctx->kmf.param.k, key, keylen);
1357 return 1;
1358}
55bd169f 1359
96530eea 1360static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
74d38a86
PS		 1361 const unsigned char *in, size_t len)
1362{
1363 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1364
1365 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1366 return 1;
1367}
96530eea
PS		 1368
1369# define S390X_aes_128_cfb1_CAPABLE 0
1370# define S390X_aes_192_cfb1_CAPABLE 0
1371# define S390X_aes_256_cfb1_CAPABLE 0
1372
55bd169f
PS		 1373# define s390x_aes_cfb1_init_key aes_init_key
1374
96530eea
PS		 1375# define s390x_aes_cfb1_cipher aes_cfb1_cipher
1376static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1377 const unsigned char *in, size_t len);
1378
1379# define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1380# define S390X_aes_192_ctr_CAPABLE 1
1381# define S390X_aes_256_ctr_CAPABLE 1
55bd169f
PS		 1382# define S390X_AES_CTR_CTX EVP_AES_KEY
1383
1384# define s390x_aes_ctr_init_key aes_init_key
96530eea
PS		 1385
1386# define s390x_aes_ctr_cipher aes_ctr_cipher
1387static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1388 const unsigned char *in, size_t len);
1389
1390# define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1391 (OPENSSL_s390xcap_P.kma[0] & \
1392 S390X_CAPBIT(S390X_AES_128)))
1393# define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1394 (OPENSSL_s390xcap_P.kma[0] & \
1395 S390X_CAPBIT(S390X_AES_192)))
1396# define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1397 (OPENSSL_s390xcap_P.kma[0] & \
1398 S390X_CAPBIT(S390X_AES_256)))
1399
bcf082d1 1400/* iv + padding length for iv lengths != 12 */
96530eea
PS		 1401# define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1402
5d2a6f4b
PS		 1403/*-
1404 * Process additional authenticated data. Returns 0 on success. Code is
1405 * big-endian.
1406 */
96530eea
PS		 1407static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1408 size_t len)
1409{
1410 unsigned long long alen;
1411 int n, rem;
1412
1413 if (ctx->kma.param.tpcl)
1414 return -2;
1415
1416 alen = ctx->kma.param.taadl + len;
1417 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1418 return -1;
1419 ctx->kma.param.taadl = alen;
1420
1421 n = ctx->areslen;
1422 if (n) {
1423 while (n && len) {
1424 ctx->ares[n] = *aad;
1425 n = (n + 1) & 0xf;
1426 ++aad;
1427 --len;
1428 }
1429 /* ctx->ares contains a complete block if offset has wrapped around */
1430 if (!n) {
1431 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1432 ctx->fc |= S390X_KMA_HS;
1433 }
1434 ctx->areslen = n;
1435 }
1436
1437 rem = len & 0xf;
1438
25868993 1439 len &= ~(size_t)0xf;
96530eea
PS		 1440 if (len) {
1441 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1442 aad += len;
1443 ctx->fc |= S390X_KMA_HS;
1444 }
1445
1446 if (rem) {
1447 ctx->areslen = rem;
1448
1449 do {
1450 --rem;
1451 ctx->ares[rem] = aad[rem];
1452 } while (rem);
1453 }
1454 return 0;
1455}
1456
5d2a6f4b
PS		 1457/*-
1458 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1459 * success. Code is big-endian.
1460 */
96530eea
PS		 1461static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1462 unsigned char *out, size_t len)
1463{
1464 const unsigned char *inptr;
1465 unsigned long long mlen;
1466 union {
1467 unsigned int w[4];
1468 unsigned char b[16];
1469 } buf;
1470 size_t inlen;
1471 int n, rem, i;
1472
1473 mlen = ctx->kma.param.tpcl + len;
1474 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1475 return -1;
1476 ctx->kma.param.tpcl = mlen;
1477
1478 n = ctx->mreslen;
1479 if (n) {
1480 inptr = in;
1481 inlen = len;
1482 while (n && inlen) {
1483 ctx->mres[n] = *inptr;
1484 n = (n + 1) & 0xf;
1485 ++inptr;
1486 --inlen;
1487 }
1488 /* ctx->mres contains a complete block if offset has wrapped around */
1489 if (!n) {
1490 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1491 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1492 ctx->fc |= S390X_KMA_HS;
1493 ctx->areslen = 0;
1494
1495 /* previous call already encrypted/decrypted its remainder,
1496 * see comment below */
1497 n = ctx->mreslen;
1498 while (n) {
1499 *out = buf.b[n];
1500 n = (n + 1) & 0xf;
1501 ++out;
1502 ++in;
1503 --len;
1504 }
1505 ctx->mreslen = 0;
1506 }
1507 }
1508
1509 rem = len & 0xf;
1510
25868993 1511 len &= ~(size_t)0xf;
96530eea
PS		 1512 if (len) {
1513 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1514 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1515 in += len;
1516 out += len;
1517 ctx->fc |= S390X_KMA_HS;
1518 ctx->areslen = 0;
1519 }
1520
1521 /*-
1522 * If there is a remainder, it has to be saved such that it can be
1523 * processed by kma later. However, we also have to do the for-now
1524 * unauthenticated encryption/decryption part here and now...
1525 */
1526 if (rem) {
1527 if (!ctx->mreslen) {
1528 buf.w[0] = ctx->kma.param.j0.w[0];
1529 buf.w[1] = ctx->kma.param.j0.w[1];
1530 buf.w[2] = ctx->kma.param.j0.w[2];
1531 buf.w[3] = ctx->kma.param.cv.w + 1;
1532 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1533 }
1534
1535 n = ctx->mreslen;
1536 for (i = 0; i < rem; i++) {
1537 ctx->mres[n + i] = in[i];
1538 out[i] = in[i] ^ ctx->kres[n + i];
1539 }
1540
1541 ctx->mreslen += rem;
1542 }
1543 return 0;
1544}
1545
5d2a6f4b
PS		 1546/*-
1547 * Initialize context structure. Code is big-endian.
1548 */
96530eea
PS		 1549static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1550 const unsigned char *iv)
1551{
1552 ctx->kma.param.t.g[0] = 0;
1553 ctx->kma.param.t.g[1] = 0;
1554 ctx->kma.param.tpcl = 0;
1555 ctx->kma.param.taadl = 0;
1556 ctx->mreslen = 0;
1557 ctx->areslen = 0;
1558 ctx->kreslen = 0;
1559
1560 if (ctx->ivlen == 12) {
1561 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1562 ctx->kma.param.j0.w[3] = 1;
1563 ctx->kma.param.cv.w = 1;
1564 } else {
1565 /* ctx->iv has the right size and is already padded. */
1566 memcpy(ctx->iv, iv, ctx->ivlen);
1567 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1568 ctx->fc, &ctx->kma.param);
1569 ctx->fc |= S390X_KMA_HS;
1570
1571 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1572 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1573 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1574 ctx->kma.param.t.g[0] = 0;
1575 ctx->kma.param.t.g[1] = 0;
1576 }
1577}
1578
5d2a6f4b
PS		 1579/*-
1580 * Performs various operations on the context structure depending on control
1581 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1582 * Code is big-endian.
1583 */
96530eea
PS		 1584static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1585{
1586 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1587 S390X_AES_GCM_CTX *gctx_out;
1588 EVP_CIPHER_CTX *out;
1589 unsigned char *buf, *iv;
1590 int ivlen, enc, len;
1591
1592 switch (type) {
1593 case EVP_CTRL_INIT:
1594 ivlen = EVP_CIPHER_CTX_iv_length(c);
1595 iv = EVP_CIPHER_CTX_iv_noconst(c);
1596 gctx->key_set = 0;
1597 gctx->iv_set = 0;
1598 gctx->ivlen = ivlen;
1599 gctx->iv = iv;
1600 gctx->taglen = -1;
1601 gctx->iv_gen = 0;
1602 gctx->tls_aad_len = -1;
1603 return 1;
1604
1605 case EVP_CTRL_AEAD_SET_IVLEN:
1606 if (arg <= 0)
1607 return 0;
1608
1609 if (arg != 12) {
1610 iv = EVP_CIPHER_CTX_iv_noconst(c);
1611 len = S390X_gcm_ivpadlen(arg);
1612
1613 /* Allocate memory for iv if needed. */
1614 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1615 if (gctx->iv != iv)
1616 OPENSSL_free(gctx->iv);
1617
cdb10bae
RS		 1618 if ((gctx->iv = OPENSSL_malloc(len)) == NULL) {
1619 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
96530eea 1620 return 0;
cdb10bae 1621 }
96530eea
PS		 1622 }
1623 /* Add padding. */
1624 memset(gctx->iv + arg, 0, len - arg - 8);
1625 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1626 }
1627 gctx->ivlen = arg;
1628 return 1;
1629
1630 case EVP_CTRL_AEAD_SET_TAG:
1631 buf = EVP_CIPHER_CTX_buf_noconst(c);
1632 enc = EVP_CIPHER_CTX_encrypting(c);
1633 if (arg <= 0 || arg > 16 || enc)
1634 return 0;
1635
1636 memcpy(buf, ptr, arg);
1637 gctx->taglen = arg;
1638 return 1;
1639
1640 case EVP_CTRL_AEAD_GET_TAG:
1641 enc = EVP_CIPHER_CTX_encrypting(c);
1642 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1643 return 0;
1644
1645 memcpy(ptr, gctx->kma.param.t.b, arg);
1646 return 1;
1647
1648 case EVP_CTRL_GCM_SET_IV_FIXED:
1649 /* Special case: -1 length restores whole iv */
1650 if (arg == -1) {
1651 memcpy(gctx->iv, ptr, gctx->ivlen);
1652 gctx->iv_gen = 1;
1653 return 1;
1654 }
1655 /*
1656 * Fixed field must be at least 4 bytes and invocation field at least
1657 * 8.
1658 */
1659 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1660 return 0;
1661
1662 if (arg)
1663 memcpy(gctx->iv, ptr, arg);
1664
1665 enc = EVP_CIPHER_CTX_encrypting(c);
16cfc2c9
KR		 1666 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1667 return 0;
96530eea
PS		 1668
1669 gctx->iv_gen = 1;
1670 return 1;
1671
1672 case EVP_CTRL_GCM_IV_GEN:
1673 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1674 return 0;
1675
1676 s390x_aes_gcm_setiv(gctx, gctx->iv);
1677
1678 if (arg <= 0 || arg > gctx->ivlen)
1679 arg = gctx->ivlen;
1680
1681 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1682 /*
1683 * Invocation field will be at least 8 bytes in size and so no need
1684 * to check wrap around or increment more than last 8 bytes.
1685 */
03a5e5ae 1686 ctr64_inc(gctx->iv + gctx->ivlen - 8);
96530eea
PS		 1687 gctx->iv_set = 1;
1688 return 1;
1689
1690 case EVP_CTRL_GCM_SET_IV_INV:
1691 enc = EVP_CIPHER_CTX_encrypting(c);
1692 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1693 return 0;
1694
1695 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1696 s390x_aes_gcm_setiv(gctx, gctx->iv);
1697 gctx->iv_set = 1;
1698 return 1;
1699
1700 case EVP_CTRL_AEAD_TLS1_AAD:
1701 /* Save the aad for later use. */
1702 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1703 return 0;
1704
1705 buf = EVP_CIPHER_CTX_buf_noconst(c);
1706 memcpy(buf, ptr, arg);
1707 gctx->tls_aad_len = arg;
d6b34570 1708 gctx->tls_enc_records = 0;
96530eea
PS		 1709
1710 len = buf[arg - 2] << 8 | buf[arg - 1];
1711 /* Correct length for explicit iv. */
1712 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1713 return 0;
1714 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1715
1716 /* If decrypting correct for tag too. */
1717 enc = EVP_CIPHER_CTX_encrypting(c);
1718 if (!enc) {
1719 if (len < EVP_GCM_TLS_TAG_LEN)
1720 return 0;
1721 len -= EVP_GCM_TLS_TAG_LEN;
1722 }
1723 buf[arg - 2] = len >> 8;
1724 buf[arg - 1] = len & 0xff;
1725 /* Extra padding: tag appended to record. */
1726 return EVP_GCM_TLS_TAG_LEN;
1727
1728 case EVP_CTRL_COPY:
1729 out = ptr;
1730 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1731 iv = EVP_CIPHER_CTX_iv_noconst(c);
1732
1733 if (gctx->iv == iv) {
1734 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1735 } else {
1736 len = S390X_gcm_ivpadlen(gctx->ivlen);
1737
cdb10bae
RS		 1738 if ((gctx_out->iv = OPENSSL_malloc(len)) == NULL) {
1739 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
96530eea 1740 return 0;
cdb10bae 1741 }
96530eea
PS		 1742
1743 memcpy(gctx_out->iv, gctx->iv, len);
1744 }
1745 return 1;
1746
1747 default:
1748 return -1;
1749 }
1750}
1751
5d2a6f4b
PS		 1752/*-
1753 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1754 */
96530eea
PS		 1755static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1756 const unsigned char *key,
1757 const unsigned char *iv, int enc)
1758{
1759 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1760 int keylen;
1761
1762 if (iv == NULL && key == NULL)
1763 return 1;
1764
1765 if (key != NULL) {
1766 keylen = EVP_CIPHER_CTX_key_length(ctx);
1767 memcpy(&gctx->kma.param.k, key, keylen);
1768
8eb399fb 1769 gctx->fc = S390X_AES_FC(keylen);
96530eea
PS		 1770 if (!enc)
1771 gctx->fc |= S390X_DECRYPT;
1772
1773 if (iv == NULL && gctx->iv_set)
1774 iv = gctx->iv;
1775
1776 if (iv != NULL) {
1777 s390x_aes_gcm_setiv(gctx, iv);
1778 gctx->iv_set = 1;
1779 }
1780 gctx->key_set = 1;
1781 } else {
1782 if (gctx->key_set)
1783 s390x_aes_gcm_setiv(gctx, iv);
1784 else
1785 memcpy(gctx->iv, iv, gctx->ivlen);
1786
1787 gctx->iv_set = 1;
1788 gctx->iv_gen = 0;
1789 }
1790 return 1;
1791}
1792
5d2a6f4b
PS		 1793/*-
1794 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1795 * if successful. Otherwise -1 is returned. Code is big-endian.
1796 */
96530eea
PS		 1797static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1798 const unsigned char *in, size_t len)
1799{
1800 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1801 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1802 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1803 int rv = -1;
1804
1805 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1806 return -1;
1807
d6b34570
P		 1808 /*
1809 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1810 * Requirements from SP 800-38D". The requirements is for one party to the
1811 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1812 * side only.
1813 */
1814 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
1815 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
1816 goto err;
1817 }
1818
96530eea
PS		 1819 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1820 : EVP_CTRL_GCM_SET_IV_INV,
1821 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1822 goto err;
1823
1824 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1825 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1826 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1827
1828 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1829 gctx->kma.param.tpcl = len << 3;
1830 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1831 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1832
1833 if (enc) {
1834 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1835 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1836 } else {
1837 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1838 EVP_GCM_TLS_TAG_LEN)) {
1839 OPENSSL_cleanse(out, len);
1840 goto err;
1841 }
1842 rv = len;
1843 }
1844err:
1845 gctx->iv_set = 0;
1846 gctx->tls_aad_len = -1;
1847 return rv;
1848}
1849
5d2a6f4b
PS		 1850/*-
1851 * Called from EVP layer to initialize context, process additional
1852 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1853 * ciphertext or process a TLS packet, depending on context. Returns bytes
1854 * written on success. Otherwise -1 is returned. Code is big-endian.
1855 */
96530eea
PS		 1856static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1857 const unsigned char *in, size_t len)
1858{
1859 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1860 unsigned char *buf, tmp[16];
1861 int enc;
1862
1863 if (!gctx->key_set)
1864 return -1;
1865
1866 if (gctx->tls_aad_len >= 0)
1867 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1868
1869 if (!gctx->iv_set)
1870 return -1;
1871
1872 if (in != NULL) {
1873 if (out == NULL) {
1874 if (s390x_aes_gcm_aad(gctx, in, len))
1875 return -1;
1876 } else {
1877 if (s390x_aes_gcm(gctx, in, out, len))
1878 return -1;
1879 }
1880 return len;
1881 } else {
1882 gctx->kma.param.taadl <<= 3;
1883 gctx->kma.param.tpcl <<= 3;
1884 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1885 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1886 /* recall that we already did en-/decrypt gctx->mres
1887 * and returned it to caller... */
1888 OPENSSL_cleanse(tmp, gctx->mreslen);
1889 gctx->iv_set = 0;
1890
1891 enc = EVP_CIPHER_CTX_encrypting(ctx);
1892 if (enc) {
1893 gctx->taglen = 16;
1894 } else {
1895 if (gctx->taglen < 0)
1896 return -1;
1897
1898 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1899 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1900 return -1;
1901 }
1902 return 0;
1903 }
1904}
1905
1906static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1907{
1908 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1909 const unsigned char *iv;
1910
1911 if (gctx == NULL)
1912 return 0;
1913
1914 iv = EVP_CIPHER_CTX_iv(c);
1915 if (iv != gctx->iv)
1916 OPENSSL_free(gctx->iv);
1917
1918 OPENSSL_cleanse(gctx, sizeof(*gctx));
1919 return 1;
1920}
1921
1922# define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1923# define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1924# define S390X_aes_256_xts_CAPABLE 1
1925
1926# define s390x_aes_xts_init_key aes_xts_init_key
1927static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1928 const unsigned char *key,
1929 const unsigned char *iv, int enc);
1930# define s390x_aes_xts_cipher aes_xts_cipher
1931static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1932 const unsigned char *in, size_t len);
1933# define s390x_aes_xts_ctrl aes_xts_ctrl
1934static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1935# define s390x_aes_xts_cleanup aes_xts_cleanup
1936
39f5b069
PS		 1937# define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1938 (OPENSSL_s390xcap_P.kmac[0] & \
1939 S390X_CAPBIT(S390X_AES_128)))
1940# define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1941 (OPENSSL_s390xcap_P.kmac[0] & \
1942 S390X_CAPBIT(S390X_AES_192)))
1943# define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1944 (OPENSSL_s390xcap_P.kmac[0] & \
1945 S390X_CAPBIT(S390X_AES_256)))
1946
1947# define S390X_CCM_AAD_FLAG 0x40
1948
1949/*-
1950 * Set nonce and length fields. Code is big-endian.
1951 */
1952static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX *ctx,
1953 const unsigned char *nonce,
1954 size_t mlen)
1955{
1956 ctx->aes.ccm.nonce.b[0] &= ~S390X_CCM_AAD_FLAG;
1957 ctx->aes.ccm.nonce.g[1] = mlen;
1958 memcpy(ctx->aes.ccm.nonce.b + 1, nonce, 15 - ctx->aes.ccm.l);
1959}
1960
1961/*-
1962 * Process additional authenticated data. Code is big-endian.
1963 */
1964static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX *ctx, const unsigned char *aad,
1965 size_t alen)
1966{
1967 unsigned char *ptr;
1968 int i, rem;
1969
1970 if (!alen)
1971 return;
1972
1973 ctx->aes.ccm.nonce.b[0] |= S390X_CCM_AAD_FLAG;
1974
1975 /* Suppress 'type-punned pointer dereference' warning. */
1976 ptr = ctx->aes.ccm.buf.b;
1977
1978 if (alen < ((1 << 16) - (1 << 8))) {
1979 *(uint16_t *)ptr = alen;
1980 i = 2;
1981 } else if (sizeof(alen) == 8
1982 && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
1983 *(uint16_t *)ptr = 0xffff;
1984 *(uint64_t *)(ptr + 2) = alen;
1985 i = 10;
1986 } else {
1987 *(uint16_t *)ptr = 0xfffe;
1988 *(uint32_t *)(ptr + 2) = alen;
1989 i = 6;
1990 }
1991
1992 while (i < 16 && alen) {
1993 ctx->aes.ccm.buf.b[i] = *aad;
1994 ++aad;
1995 --alen;
1996 ++i;
1997 }
1998 while (i < 16) {
1999 ctx->aes.ccm.buf.b[i] = 0;
2000 ++i;
2001 }
2002
2003 ctx->aes.ccm.kmac_param.icv.g[0] = 0;
2004 ctx->aes.ccm.kmac_param.icv.g[1] = 0;
2005 s390x_kmac(ctx->aes.ccm.nonce.b, 32, ctx->aes.ccm.fc,
2006 &ctx->aes.ccm.kmac_param);
2007 ctx->aes.ccm.blocks += 2;
2008
2009 rem = alen & 0xf;
25868993 2010 alen &= ~(size_t)0xf;
39f5b069
PS		 2011 if (alen) {
2012 s390x_kmac(aad, alen, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2013 ctx->aes.ccm.blocks += alen >> 4;
2014 aad += alen;
2015 }
2016 if (rem) {
2017 for (i = 0; i < rem; i++)
2018 ctx->aes.ccm.kmac_param.icv.b[i] ^= aad[i];
2019
2020 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2021 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2022 ctx->aes.ccm.kmac_param.k);
2023 ctx->aes.ccm.blocks++;
2024 }
2025}
2026
2027/*-
2028 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2029 * success.
2030 */
2031static int s390x_aes_ccm(S390X_AES_CCM_CTX *ctx, const unsigned char *in,
2032 unsigned char *out, size_t len, int enc)
2033{
2034 size_t n, rem;
2035 unsigned int i, l, num;
2036 unsigned char flags;
2037
2038 flags = ctx->aes.ccm.nonce.b[0];
2039 if (!(flags & S390X_CCM_AAD_FLAG)) {
2040 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.kmac_param.icv.b,
2041 ctx->aes.ccm.fc, ctx->aes.ccm.kmac_param.k);
2042 ctx->aes.ccm.blocks++;
2043 }
2044 l = flags & 0x7;
2045 ctx->aes.ccm.nonce.b[0] = l;
2046
2047 /*-
2048 * Reconstruct length from encoded length field
2049 * and initialize it with counter value.
2050 */
2051 n = 0;
2052 for (i = 15 - l; i < 15; i++) {
2053 n |= ctx->aes.ccm.nonce.b[i];
2054 ctx->aes.ccm.nonce.b[i] = 0;
2055 n <<= 8;
2056 }
2057 n |= ctx->aes.ccm.nonce.b[15];
2058 ctx->aes.ccm.nonce.b[15] = 1;
2059
2060 if (n != len)
2061 return -1; /* length mismatch */
2062
2063 if (enc) {
2064 /* Two operations per block plus one for tag encryption */
2065 ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
2066 if (ctx->aes.ccm.blocks > (1ULL << 61))
2067 return -2; /* too much data */
2068 }
2069
2070 num = 0;
2071 rem = len & 0xf;
25868993 2072 len &= ~(size_t)0xf;
39f5b069
PS		 2073
2074 if (enc) {
2075 /* mac-then-encrypt */
2076 if (len)
2077 s390x_kmac(in, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2078 if (rem) {
2079 for (i = 0; i < rem; i++)
2080 ctx->aes.ccm.kmac_param.icv.b[i] ^= in[len + i];
2081
2082 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2083 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2084 ctx->aes.ccm.kmac_param.k);
2085 }
2086
2087 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2088 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2089 &num, (ctr128_f)AES_ctr32_encrypt);
2090 } else {
2091 /* decrypt-then-mac */
2092 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2093 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2094 &num, (ctr128_f)AES_ctr32_encrypt);
2095
2096 if (len)
2097 s390x_kmac(out, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2098 if (rem) {
2099 for (i = 0; i < rem; i++)
2100 ctx->aes.ccm.kmac_param.icv.b[i] ^= out[len + i];
2101
2102 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2103 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2104 ctx->aes.ccm.kmac_param.k);
2105 }
2106 }
2107 /* encrypt tag */
2108 for (i = 15 - l; i < 16; i++)
2109 ctx->aes.ccm.nonce.b[i] = 0;
2110
2111 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.buf.b, ctx->aes.ccm.fc,
2112 ctx->aes.ccm.kmac_param.k);
2113 ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
2114 ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
2115
2116 ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
2117 return 0;
2118}
2119
2120/*-
2121 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2122 * if successful. Otherwise -1 is returned.
2123 */
2124static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2125 const unsigned char *in, size_t len)
2126{
2127 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2128 unsigned char *ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2129 unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2130 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2131
2132 if (out != in
2133 || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->aes.ccm.m))
2134 return -1;
2135
2136 if (enc) {
2137 /* Set explicit iv (sequence number). */
2138 memcpy(out, buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2139 }
2140
2141 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2142 /*-
2143 * Get explicit iv (sequence number). We already have fixed iv
2144 * (server/client_write_iv) here.
2145 */
2146 memcpy(ivec + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2147 s390x_aes_ccm_setiv(cctx, ivec, len);
2148
2149 /* Process aad (sequence number|type|version|length) */
2150 s390x_aes_ccm_aad(cctx, buf, cctx->aes.ccm.tls_aad_len);
2151
2152 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2153 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
96530eea 2154
39f5b069
PS		 2155 if (enc) {
2156 if (s390x_aes_ccm(cctx, in, out, len, enc))
2157 return -1;
2158
2159 memcpy(out + len, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2160 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2161 } else {
2162 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2163 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, in + len,
2164 cctx->aes.ccm.m))
2165 return len;
2166 }
2167
2168 OPENSSL_cleanse(out, len);
2169 return -1;
2170 }
2171}
2172
2173/*-
2174 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2175 * returned.
2176 */
96530eea
PS		 2177static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
2178 const unsigned char *key,
39f5b069
PS		 2179 const unsigned char *iv, int enc)
2180{
2181 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2182 unsigned char *ivec;
2183 int keylen;
2184
2185 if (iv == NULL && key == NULL)
2186 return 1;
2187
2188 if (key != NULL) {
2189 keylen = EVP_CIPHER_CTX_key_length(ctx);
8eb399fb 2190 cctx->aes.ccm.fc = S390X_AES_FC(keylen);
39f5b069
PS		 2191 memcpy(cctx->aes.ccm.kmac_param.k, key, keylen);
2192
2193 /* Store encoded m and l. */
2194 cctx->aes.ccm.nonce.b[0] = ((cctx->aes.ccm.l - 1) & 0x7)
2195 | (((cctx->aes.ccm.m - 2) >> 1) & 0x7) << 3;
2196 memset(cctx->aes.ccm.nonce.b + 1, 0,
2197 sizeof(cctx->aes.ccm.nonce.b));
2198 cctx->aes.ccm.blocks = 0;
2199
2200 cctx->aes.ccm.key_set = 1;
2201 }
2202
2203 if (iv != NULL) {
2204 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2205 memcpy(ivec, iv, 15 - cctx->aes.ccm.l);
2206
2207 cctx->aes.ccm.iv_set = 1;
2208 }
2209
2210 return 1;
2211}
2212
2213/*-
2214 * Called from EVP layer to initialize context, process additional
2215 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2216 * plaintext or process a TLS packet, depending on context. Returns bytes
2217 * written on success. Otherwise -1 is returned.
2218 */
96530eea 2219static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
39f5b069
PS		 2220 const unsigned char *in, size_t len)
2221{
2222 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2223 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2224 int rv;
2225 unsigned char *buf, *ivec;
2226
2227 if (!cctx->aes.ccm.key_set)
2228 return -1;
2229
2230 if (cctx->aes.ccm.tls_aad_len >= 0)
2231 return s390x_aes_ccm_tls_cipher(ctx, out, in, len);
2232
2233 /*-
2234 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2235 * so integrity must be checked already at Update() i.e., before
2236 * potentially corrupted data is output.
2237 */
2238 if (in == NULL && out != NULL)
2239 return 0;
2240
2241 if (!cctx->aes.ccm.iv_set)
2242 return -1;
2243
2244 if (!enc && !cctx->aes.ccm.tag_set)
2245 return -1;
2246
2247 if (out == NULL) {
2248 /* Update(): Pass message length. */
2249 if (in == NULL) {
2250 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2251 s390x_aes_ccm_setiv(cctx, ivec, len);
2252
2253 cctx->aes.ccm.len_set = 1;
2254 return len;
2255 }
2256
2257 /* Update(): Process aad. */
2258 if (!cctx->aes.ccm.len_set && len)
2259 return -1;
2260
2261 s390x_aes_ccm_aad(cctx, in, len);
2262 return len;
2263 }
2264
2265 /* Update(): Process message. */
2266
2267 if (!cctx->aes.ccm.len_set) {
2268 /*-
46d08509 2269 * In case message length was not previously set explicitly via
39f5b069
PS		 2270 * Update(), set it now.
2271 */
2272 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2273 s390x_aes_ccm_setiv(cctx, ivec, len);
2274
2275 cctx->aes.ccm.len_set = 1;
2276 }
2277
2278 if (enc) {
2279 if (s390x_aes_ccm(cctx, in, out, len, enc))
2280 return -1;
2281
2282 cctx->aes.ccm.tag_set = 1;
2283 return len;
2284 } else {
2285 rv = -1;
2286
2287 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2288 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2289 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, buf,
2290 cctx->aes.ccm.m))
2291 rv = len;
2292 }
2293
2294 if (rv == -1)
2295 OPENSSL_cleanse(out, len);
2296
2297 cctx->aes.ccm.iv_set = 0;
2298 cctx->aes.ccm.tag_set = 0;
2299 cctx->aes.ccm.len_set = 0;
2300 return rv;
2301 }
2302}
2303
2304/*-
2305 * Performs various operations on the context structure depending on control
2306 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2307 * Code is big-endian.
2308 */
2309static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2310{
2311 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, c);
2312 unsigned char *buf, *iv;
2313 int enc, len;
2314
2315 switch (type) {
2316 case EVP_CTRL_INIT:
2317 cctx->aes.ccm.key_set = 0;
2318 cctx->aes.ccm.iv_set = 0;
2319 cctx->aes.ccm.l = 8;
2320 cctx->aes.ccm.m = 12;
2321 cctx->aes.ccm.tag_set = 0;
2322 cctx->aes.ccm.len_set = 0;
2323 cctx->aes.ccm.tls_aad_len = -1;
2324 return 1;
2325
2326 case EVP_CTRL_AEAD_TLS1_AAD:
2327 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2328 return 0;
2329
2330 /* Save the aad for later use. */
2331 buf = EVP_CIPHER_CTX_buf_noconst(c);
2332 memcpy(buf, ptr, arg);
2333 cctx->aes.ccm.tls_aad_len = arg;
2334
03a5e5ae 2335 len = buf[arg - 2] << 8 | buf[arg - 1];
39f5b069
PS		 2336 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2337 return 0;
2338
2339 /* Correct length for explicit iv. */
2340 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2341
2342 enc = EVP_CIPHER_CTX_encrypting(c);
2343 if (!enc) {
2344 if (len < cctx->aes.ccm.m)
2345 return 0;
2346
2347 /* Correct length for tag. */
2348 len -= cctx->aes.ccm.m;
2349 }
2350
03a5e5ae
PS		 2351 buf[arg - 2] = len >> 8;
2352 buf[arg - 1] = len & 0xff;
2353
39f5b069
PS		 2354 /* Extra padding: tag appended to record. */
2355 return cctx->aes.ccm.m;
2356
2357 case EVP_CTRL_CCM_SET_IV_FIXED:
2358 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2359 return 0;
2360
2361 /* Copy to first part of the iv. */
2362 iv = EVP_CIPHER_CTX_iv_noconst(c);
2363 memcpy(iv, ptr, arg);
2364 return 1;
2365
2366 case EVP_CTRL_AEAD_SET_IVLEN:
2367 arg = 15 - arg;
2368 /* fall-through */
2369
2370 case EVP_CTRL_CCM_SET_L:
2371 if (arg < 2 || arg > 8)
2372 return 0;
2373
2374 cctx->aes.ccm.l = arg;
2375 return 1;
2376
2377 case EVP_CTRL_AEAD_SET_TAG:
2378 if ((arg & 1) || arg < 4 || arg > 16)
2379 return 0;
2380
2381 enc = EVP_CIPHER_CTX_encrypting(c);
2382 if (enc && ptr)
2383 return 0;
2384
2385 if (ptr) {
2386 cctx->aes.ccm.tag_set = 1;
2387 buf = EVP_CIPHER_CTX_buf_noconst(c);
2388 memcpy(buf, ptr, arg);
2389 }
2390
2391 cctx->aes.ccm.m = arg;
2392 return 1;
2393
2394 case EVP_CTRL_AEAD_GET_TAG:
2395 enc = EVP_CIPHER_CTX_encrypting(c);
2396 if (!enc || !cctx->aes.ccm.tag_set)
2397 return 0;
2398
2399 if(arg < cctx->aes.ccm.m)
2400 return 0;
2401
2402 memcpy(ptr, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2403 cctx->aes.ccm.tag_set = 0;
2404 cctx->aes.ccm.iv_set = 0;
2405 cctx->aes.ccm.len_set = 0;
2406 return 1;
2407
2408 case EVP_CTRL_COPY:
2409 return 1;
2410
2411 default:
2412 return -1;
2413 }
2414}
2415
96530eea
PS		 2416# define s390x_aes_ccm_cleanup aes_ccm_cleanup
2417
2418# ifndef OPENSSL_NO_OCB
2419# define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2420# define S390X_aes_128_ocb_CAPABLE 0
2421# define S390X_aes_192_ocb_CAPABLE 0
2422# define S390X_aes_256_ocb_CAPABLE 0
2423
2424# define s390x_aes_ocb_init_key aes_ocb_init_key
2425static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2426 const unsigned char *iv, int enc);
2427# define s390x_aes_ocb_cipher aes_ocb_cipher
2428static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2429 const unsigned char *in, size_t len);
2430# define s390x_aes_ocb_cleanup aes_ocb_cleanup
2431static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
2432# define s390x_aes_ocb_ctrl aes_ocb_ctrl
2433static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
2434# endif
2435
e74be3d4
RL		 2436# ifndef OPENSSL_NO_SIV
2437# define S390X_AES_SIV_CTX EVP_AES_SIV_CTX
2438# define S390X_aes_128_siv_CAPABLE 0
2439# define S390X_aes_192_siv_CAPABLE 0
2440# define S390X_aes_256_siv_CAPABLE 0
2441
2442# define s390x_aes_siv_init_key aes_siv_init_key
2443# define s390x_aes_siv_cipher aes_siv_cipher
2444# define s390x_aes_siv_cleanup aes_siv_cleanup
2445# define s390x_aes_siv_ctrl aes_siv_ctrl
2446# endif
2447
96530eea
PS		 2448# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2449 MODE,flags) \
2450static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2451 nid##_##keylen##_##nmode,blocksize, \
2452 keylen / 8, \
2453 ivlen, \
2454 flags | EVP_CIPH_##MODE##_MODE, \
55bd169f 2455 s390x_aes_##mode##_init_key, \
96530eea
PS		 2456 s390x_aes_##mode##_cipher, \
2457 NULL, \
55bd169f 2458 sizeof(S390X_AES_##MODE##_CTX), \
96530eea
PS		 2459 NULL, \
2460 NULL, \
2461 NULL, \
2462 NULL \
2463}; \
2464static const EVP_CIPHER aes_##keylen##_##mode = { \
2465 nid##_##keylen##_##nmode, \
2466 blocksize, \
2467 keylen / 8, \
2468 ivlen, \
2469 flags | EVP_CIPH_##MODE##_MODE, \
2470 aes_init_key, \
2471 aes_##mode##_cipher, \
2472 NULL, \
2473 sizeof(EVP_AES_KEY), \
55bd169f
PS		 2474 NULL, \
2475 NULL, \
2476 NULL, \
2477 NULL \
96530eea
PS		 2478}; \
2479const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2480{ \
2481 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2482 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2483}
2484
2485# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2486static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2487 nid##_##keylen##_##mode, \
2488 blocksize, \
e74be3d4 2489 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
96530eea
PS		 2490 ivlen, \
2491 flags | EVP_CIPH_##MODE##_MODE, \
2492 s390x_aes_##mode##_init_key, \
2493 s390x_aes_##mode##_cipher, \
2494 s390x_aes_##mode##_cleanup, \
2495 sizeof(S390X_AES_##MODE##_CTX), \
2496 NULL, \
2497 NULL, \
2498 s390x_aes_##mode##_ctrl, \
2499 NULL \
2500}; \
2501static const EVP_CIPHER aes_##keylen##_##mode = { \
2502 nid##_##keylen##_##mode,blocksize, \
e74be3d4 2503 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
96530eea
PS		 2504 ivlen, \
2505 flags | EVP_CIPH_##MODE##_MODE, \
2506 aes_##mode##_init_key, \
2507 aes_##mode##_cipher, \
2508 aes_##mode##_cleanup, \
2509 sizeof(EVP_AES_##MODE##_CTX), \
2510 NULL, \
2511 NULL, \
2512 aes_##mode##_ctrl, \
2513 NULL \
2514}; \
2515const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2516{ \
2517 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2518 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2519}
2520
5158c763 2521#else
17f121de 2522
5158c763 2523# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
17f121de 2524static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 2525 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2526 flags|EVP_CIPH_##MODE##_MODE, \
2527 aes_init_key, \
2528 aes_##mode##_cipher, \
2529 NULL, \
2530 sizeof(EVP_AES_KEY), \
2531 NULL,NULL,NULL,NULL }; \
17f121de
AP		 2532const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2533{ return &aes_##keylen##_##mode; }
d1fff483 2534
5158c763 2535# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
17f121de 2536static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e 2537 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 2538 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
2539 ivlen, \
0f113f3e
MC		 2540 flags|EVP_CIPH_##MODE##_MODE, \
2541 aes_##mode##_init_key, \
2542 aes_##mode##_cipher, \
2543 aes_##mode##_cleanup, \
2544 sizeof(EVP_AES_##MODE##_CTX), \
2545 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de
AP		 2546const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2547{ return &aes_##keylen##_##mode; }
9575d1a9 2548
5158c763 2549#endif
9575d1a9 2550
5158c763
MC		 2551#if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2552# include "arm_arch.h"
2553# if __ARM_MAX_ARCH__>=7
2554# if defined(BSAES_ASM)
2555# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2556# endif
2557# if defined(VPAES_ASM)
2558# define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
0f113f3e 2559# endif
5158c763
MC		 2560# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2561# define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2562# define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2563# define HWAES_encrypt aes_v8_encrypt
2564# define HWAES_decrypt aes_v8_decrypt
2565# define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2566# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
ddacb8f2 2567# endif
5158c763 2568#endif
d1fff483 2569
5158c763 2570#if defined(HWAES_CAPABLE)
ddacb8f2 2571int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
0f113f3e 2572 AES_KEY *key);
ddacb8f2 2573int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
0f113f3e 2574 AES_KEY *key);
ddacb8f2 2575void HWAES_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 2576 const AES_KEY *key);
ddacb8f2 2577void HWAES_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 2578 const AES_KEY *key);
ddacb8f2 2579void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 2580 size_t length, const AES_KEY *key,
2581 unsigned char *ivec, const int enc);
ddacb8f2 2582void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 2583 size_t len, const AES_KEY *key,
2584 const unsigned char ivec[16]);
46f047d7
AP		 2585void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
2586 size_t len, const AES_KEY *key1,
2587 const AES_KEY *key2, const unsigned char iv[16]);
2588void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
2589 size_t len, const AES_KEY *key1,
2590 const AES_KEY *key2, const unsigned char iv[16]);
5158c763 2591#endif
ddacb8f2 2592
5158c763 2593#define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
0f113f3e
MC		 2594 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2595 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2596 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2597 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2598 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2599 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2600 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
d1fff483
AP		 2601
2602static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2603 const unsigned char *iv, int enc)
2604{
2605 int ret, mode;
6435f0f6 2606 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 2607
6435f0f6 2608 mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e 2609 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
c01a3c6d 2610 && !enc) {
5158c763 2611#ifdef HWAES_CAPABLE
0f113f3e 2612 if (HWAES_CAPABLE) {
6435f0f6
RL		 2613 ret = HWAES_set_decrypt_key(key,
2614 EVP_CIPHER_CTX_key_length(ctx) * 8,
2615 &dat->ks.ks);
0f113f3e
MC		 2616 dat->block = (block128_f) HWAES_decrypt;
2617 dat->stream.cbc = NULL;
5158c763 2618# ifdef HWAES_cbc_encrypt
0f113f3e
MC		 2619 if (mode == EVP_CIPH_CBC_MODE)
2620 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
0f113f3e 2621# endif
5158c763
MC		 2622 } else
2623#endif
2624#ifdef BSAES_CAPABLE
0f113f3e 2625 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
6435f0f6
RL		 2626 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2627 &dat->ks.ks);
0f113f3e
MC		 2628 dat->block = (block128_f) AES_decrypt;
2629 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
2630 } else
5158c763
MC		 2631#endif
2632#ifdef VPAES_CAPABLE
0f113f3e 2633 if (VPAES_CAPABLE) {
6435f0f6
RL		 2634 ret = vpaes_set_decrypt_key(key,
2635 EVP_CIPHER_CTX_key_length(ctx) * 8,
2636 &dat->ks.ks);
0f113f3e
MC		 2637 dat->block = (block128_f) vpaes_decrypt;
2638 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2639 (cbc128_f) vpaes_cbc_encrypt : NULL;
2640 } else
5158c763 2641#endif
0f113f3e 2642 {
6435f0f6
RL		 2643 ret = AES_set_decrypt_key(key,
2644 EVP_CIPHER_CTX_key_length(ctx) * 8,
2645 &dat->ks.ks);
0f113f3e
MC		 2646 dat->block = (block128_f) AES_decrypt;
2647 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2648 (cbc128_f) AES_cbc_encrypt : NULL;
c01a3c6d 2649 }
0f113f3e 2650 } else
5158c763 2651#ifdef HWAES_CAPABLE
0f113f3e 2652 if (HWAES_CAPABLE) {
6435f0f6
RL		 2653 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2654 &dat->ks.ks);
0f113f3e
MC		 2655 dat->block = (block128_f) HWAES_encrypt;
2656 dat->stream.cbc = NULL;
5158c763 2657# ifdef HWAES_cbc_encrypt
0f113f3e
MC		 2658 if (mode == EVP_CIPH_CBC_MODE)
2659 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2660 else
5158c763
MC		 2661# endif
2662# ifdef HWAES_ctr32_encrypt_blocks
0f113f3e
MC		 2663 if (mode == EVP_CIPH_CTR_MODE)
2664 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2665 else
5158c763 2666# endif
0f113f3e
MC		 2667 (void)0; /* terminate potentially open 'else' */
2668 } else
5158c763
MC		 2669#endif
2670#ifdef BSAES_CAPABLE
0f113f3e 2671 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
6435f0f6
RL		 2672 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2673 &dat->ks.ks);
0f113f3e
MC		 2674 dat->block = (block128_f) AES_encrypt;
2675 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2676 } else
5158c763
MC		 2677#endif
2678#ifdef VPAES_CAPABLE
0f113f3e 2679 if (VPAES_CAPABLE) {
6435f0f6
RL		 2680 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2681 &dat->ks.ks);
0f113f3e
MC		 2682 dat->block = (block128_f) vpaes_encrypt;
2683 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2684 (cbc128_f) vpaes_cbc_encrypt : NULL;
2685 } else
5158c763 2686#endif
0f113f3e 2687 {
6435f0f6
RL		 2688 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2689 &dat->ks.ks);
0f113f3e
MC		 2690 dat->block = (block128_f) AES_encrypt;
2691 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2692 (cbc128_f) AES_cbc_encrypt : NULL;
5158c763 2693#ifdef AES_CTR_ASM
0f113f3e
MC		 2694 if (mode == EVP_CIPH_CTR_MODE)
2695 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
5158c763 2696#endif
0f113f3e 2697 }
d1fff483 2698
0f113f3e
MC		 2699 if (ret < 0) {
2700 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
2701 return 0;
2702 }
d1fff483 2703
0f113f3e
MC		 2704 return 1;
2705}
d1fff483 2706
0f113f3e
MC		 2707static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2708 const unsigned char *in, size_t len)
17f121de 2709{
6435f0f6 2710 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2711
0f113f3e 2712 if (dat->stream.cbc)
6435f0f6
RL		 2713 (*dat->stream.cbc) (in, out, len, &dat->ks,
2714 EVP_CIPHER_CTX_iv_noconst(ctx),
2715 EVP_CIPHER_CTX_encrypting(ctx));
2716 else if (EVP_CIPHER_CTX_encrypting(ctx))
2717 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
2718 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
0f113f3e 2719 else
6435f0f6
RL		 2720 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
2721 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
17f121de 2722
0f113f3e 2723 return 1;
17f121de
AP		 2724}
2725
0f113f3e
MC		 2726static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2727 const unsigned char *in, size_t len)
17f121de 2728{
6435f0f6 2729 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
0f113f3e 2730 size_t i;
6435f0f6 2731 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
17f121de 2732
0f113f3e
MC		 2733 if (len < bl)
2734 return 1;
17f121de 2735
0f113f3e
MC		 2736 for (i = 0, len -= bl; i <= len; i += bl)
2737 (*dat->block) (in + i, out + i, &dat->ks);
17f121de 2738
0f113f3e 2739 return 1;
17f121de 2740}
deb2c1a1 2741
0f113f3e
MC		 2742static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2743 const unsigned char *in, size_t len)
17f121de 2744{
6435f0f6 2745 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2746
6435f0f6 2747 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2748 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2749 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
2750 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2751 return 1;
17f121de 2752}
deb2c1a1 2753
0f113f3e
MC		 2754static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2755 const unsigned char *in, size_t len)
17f121de 2756{
6435f0f6 2757 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2758
6435f0f6 2759 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2760 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2761 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2762 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2763 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2764 return 1;
17f121de
AP		 2765}
2766
0f113f3e
MC		 2767static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2768 const unsigned char *in, size_t len)
17f121de 2769{
6435f0f6 2770 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2771
6435f0f6 2772 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2773 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2774 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2775 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2776 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2777 return 1;
17f121de 2778}
8d1ebe0b 2779
0f113f3e
MC		 2780static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2781 const unsigned char *in, size_t len)
17f121de 2782{
6435f0f6 2783 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 2784
6435f0f6
RL		 2785 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
2786 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2787 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2788 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2789 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2790 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e
MC		 2791 return 1;
2792 }
2793
2794 while (len >= MAXBITCHUNK) {
6435f0f6 2795 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2796 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
6435f0f6
RL		 2797 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2798 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2799 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2800 len -= MAXBITCHUNK;
604e591e
BE		 2801 out += MAXBITCHUNK;
2802 in += MAXBITCHUNK;
0f113f3e 2803 }
6435f0f6
RL		 2804 if (len) {
2805 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2806 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
6435f0f6
RL		 2807 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2808 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2809 EVP_CIPHER_CTX_set_num(ctx, num);
2810 }
0f113f3e
MC		 2811
2812 return 1;
17f121de 2813}
8d1ebe0b 2814
0f113f3e
MC		 2815static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2816 const unsigned char *in, size_t len)
d976f992 2817{
6435f0f6
RL		 2818 unsigned int num = EVP_CIPHER_CTX_num(ctx);
2819 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e
MC		 2820
2821 if (dat->stream.ctr)
2822 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
6435f0f6
RL		 2823 EVP_CIPHER_CTX_iv_noconst(ctx),
2824 EVP_CIPHER_CTX_buf_noconst(ctx),
2825 &num, dat->stream.ctr);
0f113f3e
MC		 2826 else
2827 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2828 EVP_CIPHER_CTX_iv_noconst(ctx),
2829 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
2830 dat->block);
2831 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2832 return 1;
d976f992
AP		 2833}
2834
0f113f3e
MC		 2835BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2836 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2837 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
bdaa5415
DSH		 2838
2839static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
0f113f3e 2840{
6435f0f6 2841 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
273a0218
BE		 2842 if (gctx == NULL)
2843 return 0;
0f113f3e 2844 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
6435f0f6 2845 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
0f113f3e
MC		 2846 OPENSSL_free(gctx->iv);
2847 return 1;
2848}
bdaa5415
DSH		 2849
2850static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 2851{
6435f0f6 2852 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
0f113f3e
MC		 2853 switch (type) {
2854 case EVP_CTRL_INIT:
2855 gctx->key_set = 0;
2856 gctx->iv_set = 0;
c5307d9c
AP		 2857 gctx->ivlen = c->cipher->iv_len;
2858 gctx->iv = c->iv;
0f113f3e
MC		 2859 gctx->taglen = -1;
2860 gctx->iv_gen = 0;
2861 gctx->tls_aad_len = -1;
2862 return 1;
2863
e640fa02 2864 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e
MC		 2865 if (arg <= 0)
2866 return 0;
2867 /* Allocate memory for IV if needed */
2868 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
c5307d9c 2869 if (gctx->iv != c->iv)
0f113f3e 2870 OPENSSL_free(gctx->iv);
cdb10bae
RS		 2871 if ((gctx->iv = OPENSSL_malloc(arg)) == NULL) {
2872 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
0f113f3e 2873 return 0;
cdb10bae 2874 }
0f113f3e
MC		 2875 }
2876 gctx->ivlen = arg;
2877 return 1;
2878
e640fa02 2879 case EVP_CTRL_AEAD_SET_TAG:
c5307d9c 2880 if (arg <= 0 || arg > 16 || c->encrypt)
0f113f3e 2881 return 0;
c5307d9c 2882 memcpy(c->buf, ptr, arg);
0f113f3e
MC		 2883 gctx->taglen = arg;
2884 return 1;
2885
e640fa02 2886 case EVP_CTRL_AEAD_GET_TAG:
c5307d9c 2887 if (arg <= 0 || arg > 16 || !c->encrypt
6435f0f6 2888 || gctx->taglen < 0)
0f113f3e 2889 return 0;
c5307d9c 2890 memcpy(ptr, c->buf, arg);
0f113f3e
MC		 2891 return 1;
2892
ecd1557f 2893 case EVP_CTRL_GET_IV:
bcf082d1 2894 if (gctx->iv_gen != 1 && gctx->iv_gen_rand != 1)
ecd1557f
BP		 2895 return 0;
2896 if (gctx->ivlen != arg)
2897 return 0;
2898 memcpy(ptr, gctx->iv, arg);
2899 return 1;
2900
0f113f3e
MC		 2901 case EVP_CTRL_GCM_SET_IV_FIXED:
2902 /* Special case: -1 length restores whole IV */
2903 if (arg == -1) {
2904 memcpy(gctx->iv, ptr, gctx->ivlen);
2905 gctx->iv_gen = 1;
2906 return 1;
2907 }
2908 /*
2909 * Fixed field must be at least 4 bytes and invocation field at least
2910 * 8.
2911 */
2912 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2913 return 0;
2914 if (arg)
2915 memcpy(gctx->iv, ptr, arg);
c5307d9c 2916 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
16cfc2c9 2917 return 0;
0f113f3e
MC		 2918 gctx->iv_gen = 1;
2919 return 1;
2920
2921 case EVP_CTRL_GCM_IV_GEN:
2922 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2923 return 0;
2924 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2925 if (arg <= 0 || arg > gctx->ivlen)
2926 arg = gctx->ivlen;
2927 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2928 /*
2929 * Invocation field will be at least 8 bytes in size and so no need
2930 * to check wrap around or increment more than last 8 bytes.
2931 */
2932 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2933 gctx->iv_set = 1;
2934 return 1;
2935
2936 case EVP_CTRL_GCM_SET_IV_INV:
c5307d9c 2937 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
0f113f3e
MC		 2938 return 0;
2939 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2940 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2941 gctx->iv_set = 1;
2942 return 1;
2943
2944 case EVP_CTRL_AEAD_TLS1_AAD:
2945 /* Save the AAD for later use */
c8269881 2946 if (arg != EVP_AEAD_TLS1_AAD_LEN)
0f113f3e 2947 return 0;
c5307d9c 2948 memcpy(c->buf, ptr, arg);
0f113f3e 2949 gctx->tls_aad_len = arg;
d6b34570 2950 gctx->tls_enc_records = 0;
0f113f3e 2951 {
c5307d9c 2952 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
0f113f3e 2953 /* Correct length for explicit IV */
2198b3a5
AP		 2954 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2955 return 0;
0f113f3e
MC		 2956 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2957 /* If decrypting correct for tag too */
c5307d9c 2958 if (!c->encrypt) {
2198b3a5
AP		 2959 if (len < EVP_GCM_TLS_TAG_LEN)
2960 return 0;
0f113f3e 2961 len -= EVP_GCM_TLS_TAG_LEN;
2198b3a5 2962 }
c5307d9c
AP		 2963 c->buf[arg - 2] = len >> 8;
2964 c->buf[arg - 1] = len & 0xff;
0f113f3e
MC		 2965 }
2966 /* Extra padding: tag appended to record */
2967 return EVP_GCM_TLS_TAG_LEN;
2968
2969 case EVP_CTRL_COPY:
2970 {
2971 EVP_CIPHER_CTX *out = ptr;
6435f0f6 2972 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
0f113f3e
MC		 2973 if (gctx->gcm.key) {
2974 if (gctx->gcm.key != &gctx->ks)
2975 return 0;
2976 gctx_out->gcm.key = &gctx_out->ks;
2977 }
c5307d9c
AP		 2978 if (gctx->iv == c->iv)
2979 gctx_out->iv = out->iv;
0f113f3e 2980 else {
cdb10bae
RS		 2981 if ((gctx_out->iv = OPENSSL_malloc(gctx->ivlen)) == NULL) {
2982 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
0f113f3e 2983 return 0;
cdb10bae 2984 }
0f113f3e
MC		 2985 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2986 }
2987 return 1;
2988 }
2989
2990 default:
2991 return -1;
2992
2993 }
2994}
bdaa5415
DSH		 2995
2996static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2997 const unsigned char *iv, int enc)
2998{
6435f0f6 2999 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 3000 if (!iv && !key)
3001 return 1;
3002 if (key) {
3003 do {
5158c763 3004#ifdef HWAES_CAPABLE
0f113f3e 3005 if (HWAES_CAPABLE) {
c5307d9c 3006 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3007 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3008 (block128_f) HWAES_encrypt);
5158c763 3009# ifdef HWAES_ctr32_encrypt_blocks
0f113f3e 3010 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
5158c763 3011# else
0f113f3e 3012 gctx->ctr = NULL;
5158c763 3013# endif
0f113f3e
MC		 3014 break;
3015 } else
5158c763
MC		 3016#endif
3017#ifdef BSAES_CAPABLE
0f113f3e 3018 if (BSAES_CAPABLE) {
c5307d9c 3019 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3020 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3021 (block128_f) AES_encrypt);
3022 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
3023 break;
3024 } else
5158c763
MC		 3025#endif
3026#ifdef VPAES_CAPABLE
0f113f3e 3027 if (VPAES_CAPABLE) {
c5307d9c 3028 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3029 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3030 (block128_f) vpaes_encrypt);
3031 gctx->ctr = NULL;
3032 break;
3033 } else
5158c763 3034#endif
0f113f3e
MC		 3035 (void)0; /* terminate potentially open 'else' */
3036
c5307d9c 3037 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3038 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3039 (block128_f) AES_encrypt);
5158c763 3040#ifdef AES_CTR_ASM
0f113f3e 3041 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
5158c763 3042#else
0f113f3e 3043 gctx->ctr = NULL;
5158c763 3044#endif
0f113f3e
MC		 3045 } while (0);
3046
3047 /*
3048 * If we have an iv can set it directly, otherwise use saved IV.
3049 */
3050 if (iv == NULL && gctx->iv_set)
3051 iv = gctx->iv;
3052 if (iv) {
3053 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3054 gctx->iv_set = 1;
3055 }
3056 gctx->key_set = 1;
3057 } else {
3058 /* If key set use IV, otherwise copy */
3059 if (gctx->key_set)
3060 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3061 else
3062 memcpy(gctx->iv, iv, gctx->ivlen);
3063 gctx->iv_set = 1;
3064 gctx->iv_gen = 0;
3065 }
3066 return 1;
3067}
3068
3069/*
3070 * Handle TLS GCM packet format. This consists of the last portion of the IV
28dd49fa
DSH		 3071 * followed by the payload and finally the tag. On encrypt generate IV,
3072 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3073 * and verify tag.
3074 */
3075
3076static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3077 const unsigned char *in, size_t len)
3078{
6435f0f6 3079 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 3080 int rv = -1;
3081 /* Encrypt/decrypt must be performed in place */
3082 if (out != in
3083 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
3084 return -1;
df443918 3085
d6b34570
P		 3086 /*
3087 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3088 * Requirements from SP 800-38D". The requirements is for one party to the
3089 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3090 * side only.
3091 */
3092 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
3093 EVPerr(EVP_F_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
3094 goto err;
3095 }
3096
0f113f3e
MC		 3097 /*
3098 * Set IV from start of buffer or generate IV and write to start of
3099 * buffer.
3100 */
c5307d9c
AP		 3101 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? EVP_CTRL_GCM_IV_GEN
3102 : EVP_CTRL_GCM_SET_IV_INV,
0f113f3e
MC		 3103 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
3104 goto err;
3105 /* Use saved AAD */
c5307d9c 3106 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
0f113f3e
MC		 3107 goto err;
3108 /* Fix buffer and length to point to payload */
3109 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3110 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3111 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
c5307d9c 3112 if (ctx->encrypt) {
0f113f3e
MC		 3113 /* Encrypt payload */
3114 if (gctx->ctr) {
3115 size_t bulk = 0;
5158c763 3116#if defined(AES_GCM_ASM)
0f113f3e
MC		 3117 if (len >= 32 && AES_GCM_ASM(gctx)) {
3118 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3119 return -1;
3120
3121 bulk = AES_gcm_encrypt(in, out, len,
3122 gctx->gcm.key,
3123 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3124 gctx->gcm.len.u[1] += bulk;
3125 }
5158c763 3126#endif
0f113f3e
MC		 3127 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3128 in + bulk,
3129 out + bulk,
3130 len - bulk, gctx->ctr))
3131 goto err;
3132 } else {
3133 size_t bulk = 0;
5158c763 3134#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3135 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3136 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3137 return -1;
3138
3139 bulk = AES_gcm_encrypt(in, out, len,
3140 gctx->gcm.key,
3141 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3142 gctx->gcm.len.u[1] += bulk;
3143 }
5158c763 3144#endif
0f113f3e
MC		 3145 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3146 in + bulk, out + bulk, len - bulk))
3147 goto err;
3148 }
3149 out += len;
3150 /* Finally write tag */
3151 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
3152 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3153 } else {
3154 /* Decrypt */
3155 if (gctx->ctr) {
3156 size_t bulk = 0;
5158c763 3157#if defined(AES_GCM_ASM)
0f113f3e
MC		 3158 if (len >= 16 && AES_GCM_ASM(gctx)) {
3159 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3160 return -1;
3161
3162 bulk = AES_gcm_decrypt(in, out, len,
3163 gctx->gcm.key,
3164 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3165 gctx->gcm.len.u[1] += bulk;
3166 }
5158c763 3167#endif
0f113f3e
MC		 3168 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3169 in + bulk,
3170 out + bulk,
3171 len - bulk, gctx->ctr))
3172 goto err;
3173 } else {
3174 size_t bulk = 0;
5158c763 3175#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3176 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3177 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3178 return -1;
3179
3180 bulk = AES_gcm_decrypt(in, out, len,
3181 gctx->gcm.key,
3182 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3183 gctx->gcm.len.u[1] += bulk;
3184 }
5158c763 3185#endif
0f113f3e
MC		 3186 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3187 in + bulk, out + bulk, len - bulk))
3188 goto err;
3189 }
3190 /* Retrieve tag */
c5307d9c 3191 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
0f113f3e 3192 /* If tag mismatch wipe buffer */
c5307d9c 3193 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
0f113f3e
MC		 3194 OPENSSL_cleanse(out, len);
3195 goto err;
3196 }
3197 rv = len;
3198 }
3199
3200 err:
3201 gctx->iv_set = 0;
3202 gctx->tls_aad_len = -1;
3203 return rv;
3204}
28dd49fa 3205
bcf082d1
SL		 3206#ifdef FIPS_MODE
3207/*
3208 * See SP800-38D (GCM) Section 8 "Uniqueness requirement on IVS and keys"
3209 *
3210 * See also 8.2.2 RBG-based construction.
3211 * Random construction consists of a free field (which can be NULL) and a
3212 * random field which will use a DRBG that can return at least 96 bits of
3213 * entropy strength. (The DRBG must be seeded by the FIPS module).
3214 */
3215static int aes_gcm_iv_generate(EVP_AES_GCM_CTX *gctx, int offset)
3216{
3217 int sz = gctx->ivlen - offset;
3218
3219 /* Must be at least 96 bits */
3220 if (sz <= 0 || gctx->ivlen < 12)
3221 return 0;
3222
3223 /* Use DRBG to generate random iv */
3224 if (RAND_bytes(gctx->iv + offset, sz) <= 0)
3225 return 0;
3226 return 1;
3227}
3228#endif /* FIPS_MODE */
3229
17f121de 3230static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3231 const unsigned char *in, size_t len)
3232{
6435f0f6 3233 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
bcf082d1 3234
0f113f3e
MC		 3235 /* If not set up, return error */
3236 if (!gctx->key_set)
3237 return -1;
3238
3239 if (gctx->tls_aad_len >= 0)
3240 return aes_gcm_tls_cipher(ctx, out, in, len);
3241
bcf082d1
SL		 3242#ifdef FIPS_MODE
3243 /*
3244 * FIPS requires generation of AES-GCM IV's inside the FIPS module.
3245 * The IV can still be set externally (the security policy will state that
3246 * this is not FIPS compliant). There are some applications
3247 * where setting the IV externally is the only option available.
3248 */
3249 if (!gctx->iv_set) {
3250 if (!ctx->encrypt || !aes_gcm_iv_generate(gctx, 0))
3251 return -1;
3252 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
3253 gctx->iv_set = 1;
3254 gctx->iv_gen_rand = 1;
3255 }
3256#else
0f113f3e
MC		 3257 if (!gctx->iv_set)
3258 return -1;
bcf082d1
SL		 3259#endif /* FIPS_MODE */
3260
0f113f3e
MC		 3261 if (in) {
3262 if (out == NULL) {
3263 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
3264 return -1;
c5307d9c 3265 } else if (ctx->encrypt) {
0f113f3e
MC		 3266 if (gctx->ctr) {
3267 size_t bulk = 0;
5158c763 3268#if defined(AES_GCM_ASM)
0f113f3e
MC		 3269 if (len >= 32 && AES_GCM_ASM(gctx)) {
3270 size_t res = (16 - gctx->gcm.mres) % 16;
3271
3272 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3273 return -1;
3274
3275 bulk = AES_gcm_encrypt(in + res,
3276 out + res, len - res,
3277 gctx->gcm.key, gctx->gcm.Yi.c,
3278 gctx->gcm.Xi.u);
3279 gctx->gcm.len.u[1] += bulk;
3280 bulk += res;
3281 }
5158c763 3282#endif
0f113f3e
MC		 3283 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3284 in + bulk,
3285 out + bulk,
3286 len - bulk, gctx->ctr))
3287 return -1;
3288 } else {
3289 size_t bulk = 0;
5158c763 3290#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3291 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3292 size_t res = (16 - gctx->gcm.mres) % 16;
3293
3294 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3295 return -1;
3296
3297 bulk = AES_gcm_encrypt(in + res,
3298 out + res, len - res,
3299 gctx->gcm.key, gctx->gcm.Yi.c,
3300 gctx->gcm.Xi.u);
3301 gctx->gcm.len.u[1] += bulk;
3302 bulk += res;
3303 }
5158c763 3304#endif
0f113f3e
MC		 3305 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3306 in + bulk, out + bulk, len - bulk))
3307 return -1;
3308 }
3309 } else {
3310 if (gctx->ctr) {
3311 size_t bulk = 0;
5158c763 3312#if defined(AES_GCM_ASM)
0f113f3e
MC		 3313 if (len >= 16 && AES_GCM_ASM(gctx)) {
3314 size_t res = (16 - gctx->gcm.mres) % 16;
3315
3316 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3317 return -1;
3318
3319 bulk = AES_gcm_decrypt(in + res,
3320 out + res, len - res,
3321 gctx->gcm.key,
3322 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3323 gctx->gcm.len.u[1] += bulk;
3324 bulk += res;
3325 }
5158c763 3326#endif
0f113f3e
MC		 3327 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3328 in + bulk,
3329 out + bulk,
3330 len - bulk, gctx->ctr))
3331 return -1;
3332 } else {
3333 size_t bulk = 0;
5158c763 3334#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3335 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3336 size_t res = (16 - gctx->gcm.mres) % 16;
3337
3338 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3339 return -1;
3340
3341 bulk = AES_gcm_decrypt(in + res,
3342 out + res, len - res,
3343 gctx->gcm.key,
3344 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3345 gctx->gcm.len.u[1] += bulk;
3346 bulk += res;
3347 }
5158c763 3348#endif
0f113f3e
MC		 3349 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3350 in + bulk, out + bulk, len - bulk))
3351 return -1;
3352 }
3353 }
3354 return len;
3355 } else {
c5307d9c 3356 if (!ctx->encrypt) {
0f113f3e
MC		 3357 if (gctx->taglen < 0)
3358 return -1;
c5307d9c 3359 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
0f113f3e
MC		 3360 return -1;
3361 gctx->iv_set = 0;
3362 return 0;
3363 }
c5307d9c 3364 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
0f113f3e
MC		 3365 gctx->taglen = 16;
3366 /* Don't reuse the IV */
3367 gctx->iv_set = 0;
3368 return 0;
3369 }
3370
3371}
3372
5158c763 3373#define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
0f113f3e
MC		 3374 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3375 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3376 | EVP_CIPH_CUSTOM_COPY)
3377
3378BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
3379 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3380 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
3381 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3382 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
3383 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
32a2d8dd
DSH		 3384
3385static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 3386{
6435f0f6 3387 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
0f113f3e
MC		 3388 if (type == EVP_CTRL_COPY) {
3389 EVP_CIPHER_CTX *out = ptr;
6435f0f6 3390 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
0f113f3e
MC		 3391 if (xctx->xts.key1) {
3392 if (xctx->xts.key1 != &xctx->ks1)
3393 return 0;
3394 xctx_out->xts.key1 = &xctx_out->ks1;
3395 }
3396 if (xctx->xts.key2) {
3397 if (xctx->xts.key2 != &xctx->ks2)
3398 return 0;
3399 xctx_out->xts.key2 = &xctx_out->ks2;
3400 }
3401 return 1;
3402 } else if (type != EVP_CTRL_INIT)
3403 return -1;
3404 /* key1 and key2 are used as an indicator both key and IV are set */
3405 xctx->xts.key1 = NULL;
3406 xctx->xts.key2 = NULL;
3407 return 1;
3408}
32a2d8dd
DSH		 3409
3410static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 3411 const unsigned char *iv, int enc)
3412{
6435f0f6 3413 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 3414 if (!iv && !key)
3415 return 1;
3416
3417 if (key)
3418 do {
5158c763 3419#ifdef AES_XTS_ASM
0f113f3e 3420 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
5158c763 3421#else
0f113f3e 3422 xctx->stream = NULL;
5158c763 3423#endif
0f113f3e 3424 /* key_len is two AES keys */
5158c763 3425#ifdef HWAES_CAPABLE
0f113f3e
MC		 3426 if (HWAES_CAPABLE) {
3427 if (enc) {
6435f0f6
RL		 3428 HWAES_set_encrypt_key(key,
3429 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3430 &xctx->ks1.ks);
3431 xctx->xts.block1 = (block128_f) HWAES_encrypt;
46f047d7
AP		 3432# ifdef HWAES_xts_encrypt
3433 xctx->stream = HWAES_xts_encrypt;
3434# endif
0f113f3e 3435 } else {
6435f0f6
RL		 3436 HWAES_set_decrypt_key(key,
3437 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3438 &xctx->ks1.ks);
3439 xctx->xts.block1 = (block128_f) HWAES_decrypt;
46f047d7
AP		 3440# ifdef HWAES_xts_decrypt
3441 xctx->stream = HWAES_xts_decrypt;
3442#endif
0f113f3e
MC		 3443 }
3444
6435f0f6
RL		 3445 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3446 EVP_CIPHER_CTX_key_length(ctx) * 4,
3447 &xctx->ks2.ks);
0f113f3e
MC		 3448 xctx->xts.block2 = (block128_f) HWAES_encrypt;
3449
3450 xctx->xts.key1 = &xctx->ks1;
3451 break;
3452 } else
5158c763
MC		 3453#endif
3454#ifdef BSAES_CAPABLE
0f113f3e
MC		 3455 if (BSAES_CAPABLE)
3456 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
3457 else
5158c763
MC		 3458#endif
3459#ifdef VPAES_CAPABLE
0f113f3e
MC		 3460 if (VPAES_CAPABLE) {
3461 if (enc) {
6435f0f6
RL		 3462 vpaes_set_encrypt_key(key,
3463 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3464 &xctx->ks1.ks);
3465 xctx->xts.block1 = (block128_f) vpaes_encrypt;
3466 } else {
6435f0f6
RL		 3467 vpaes_set_decrypt_key(key,
3468 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3469 &xctx->ks1.ks);
3470 xctx->xts.block1 = (block128_f) vpaes_decrypt;
3471 }
3472
6435f0f6
RL		 3473 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3474 EVP_CIPHER_CTX_key_length(ctx) * 4,
3475 &xctx->ks2.ks);
0f113f3e
MC		 3476 xctx->xts.block2 = (block128_f) vpaes_encrypt;
3477
3478 xctx->xts.key1 = &xctx->ks1;
3479 break;
3480 } else
5158c763 3481#endif
0f113f3e
MC		 3482 (void)0; /* terminate potentially open 'else' */
3483
3484 if (enc) {
6435f0f6
RL		 3485 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3486 &xctx->ks1.ks);
0f113f3e
MC		 3487 xctx->xts.block1 = (block128_f) AES_encrypt;
3488 } else {
6435f0f6
RL		 3489 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3490 &xctx->ks1.ks);
0f113f3e
MC		 3491 xctx->xts.block1 = (block128_f) AES_decrypt;
3492 }
3493
6435f0f6
RL		 3494 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3495 EVP_CIPHER_CTX_key_length(ctx) * 4,
3496 &xctx->ks2.ks);
0f113f3e
MC		 3497 xctx->xts.block2 = (block128_f) AES_encrypt;
3498
3499 xctx->xts.key1 = &xctx->ks1;
3500 } while (0);
3501
3502 if (iv) {
3503 xctx->xts.key2 = &xctx->ks2;
6435f0f6 3504 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 3505 }
3506
3507 return 1;
3508}
32a2d8dd 3509
17f121de 3510static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3511 const unsigned char *in, size_t len)
3512{
6435f0f6 3513 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
95eda4f0
P		 3514
3515 if (xctx->xts.key1 == NULL
3516 || xctx->xts.key2 == NULL
3517 || out == NULL
3518 || in == NULL
3519 || len < AES_BLOCK_SIZE)
0f113f3e 3520 return 0;
95eda4f0 3521
5516c19b
P		 3522 /*
3523 * Impose a limit of 2^20 blocks per data unit as specifed by
3524 * IEEE Std 1619-2018. The earlier and obsolete IEEE Std 1619-2007
3525 * indicated that this was a SHOULD NOT rather than a MUST NOT.
3526 * NIST SP 800-38E mandates the same limit.
3527 */
3528 if (len > XTS_MAX_BLOCKS_PER_DATA_UNIT * AES_BLOCK_SIZE) {
3529 EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_XTS_DATA_UNIT_IS_TOO_LARGE);
3530 return 0;
3531 }
3532
95eda4f0
P		 3533 /*
3534 * Verify that the two keys are different.
3535 *
3536 * This addresses the vulnerability described in Rogaway's September 2004
3537 * paper (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf):
3538 * "Efficient Instantiations of Tweakable Blockciphers and Refinements
3539 * to Modes OCB and PMAC".
3540 *
3541 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states that:
3542 * "The check for Key_1 != Key_2 shall be done at any place BEFORE
3543 * using the keys in the XTS-AES algorithm to process data with them."
3544 */
3545 if (CRYPTO_memcmp(xctx->xts.key1, xctx->xts.key2,
3546 EVP_CIPHER_CTX_key_length(ctx) / 2) == 0)
0f113f3e 3547 return 0;
95eda4f0 3548
0f113f3e
MC		 3549 if (xctx->stream)
3550 (*xctx->stream) (in, out, len,
6435f0f6
RL		 3551 xctx->xts.key1, xctx->xts.key2,
3552 EVP_CIPHER_CTX_iv_noconst(ctx));
3553 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
3554 in, out, len,
3555 EVP_CIPHER_CTX_encrypting(ctx)))
0f113f3e
MC		 3556 return 0;
3557 return 1;
3558}
3559
5158c763 3560#define aes_xts_cleanup NULL
0f113f3e 3561
5158c763 3562#define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
0f113f3e
MC		 3563 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3564 | EVP_CIPH_CUSTOM_COPY)
3565
3566BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
3567 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
23916810
DSH		 3568
3569static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 3570{
6435f0f6 3571 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
0f113f3e
MC		 3572 switch (type) {
3573 case EVP_CTRL_INIT:
3574 cctx->key_set = 0;
3575 cctx->iv_set = 0;
3576 cctx->L = 8;
3577 cctx->M = 12;
3578 cctx->tag_set = 0;
3579 cctx->len_set = 0;
e75c5a79
DSH		 3580 cctx->tls_aad_len = -1;
3581 return 1;
3582
3583 case EVP_CTRL_AEAD_TLS1_AAD:
3584 /* Save the AAD for later use */
3585 if (arg != EVP_AEAD_TLS1_AAD_LEN)
3586 return 0;
6435f0f6 3587 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
e75c5a79
DSH		 3588 cctx->tls_aad_len = arg;
3589 {
6435f0f6
RL		 3590 uint16_t len =
3591 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
3592 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
e75c5a79 3593 /* Correct length for explicit IV */
2198b3a5
AP		 3594 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
3595 return 0;
e75c5a79
DSH		 3596 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
3597 /* If decrypting correct for tag too */
2198b3a5
AP		 3598 if (!EVP_CIPHER_CTX_encrypting(c)) {
3599 if (len < cctx->M)
3600 return 0;
e75c5a79 3601 len -= cctx->M;
2198b3a5 3602 }
6435f0f6
RL		 3603 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
3604 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
e75c5a79
DSH		 3605 }
3606 /* Extra padding: tag appended to record */
3607 return cctx->M;
3608
3609 case EVP_CTRL_CCM_SET_IV_FIXED:
3610 /* Sanity check length */
3611 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
3612 return 0;
3613 /* Just copy to first part of IV */
6435f0f6 3614 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
0f113f3e
MC		 3615 return 1;
3616
e640fa02 3617 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e 3618 arg = 15 - arg;
018fcbec 3619 /* fall thru */
0f113f3e
MC		 3620 case EVP_CTRL_CCM_SET_L:
3621 if (arg < 2 || arg > 8)
3622 return 0;
3623 cctx->L = arg;
3624 return 1;
3625
e640fa02 3626 case EVP_CTRL_AEAD_SET_TAG:
0f113f3e
MC		 3627 if ((arg & 1) || arg < 4 || arg > 16)
3628 return 0;
6435f0f6 3629 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
0f113f3e
MC		 3630 return 0;
3631 if (ptr) {
3632 cctx->tag_set = 1;
6435f0f6 3633 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
0f113f3e
MC		 3634 }
3635 cctx->M = arg;
3636 return 1;
3637
e640fa02 3638 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6 3639 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
0f113f3e
MC		 3640 return 0;
3641 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
3642 return 0;
3643 cctx->tag_set = 0;
3644 cctx->iv_set = 0;
3645 cctx->len_set = 0;
3646 return 1;
3647
3648 case EVP_CTRL_COPY:
3649 {
3650 EVP_CIPHER_CTX *out = ptr;
6435f0f6 3651 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
0f113f3e
MC		 3652 if (cctx->ccm.key) {
3653 if (cctx->ccm.key != &cctx->ks)
3654 return 0;
3655 cctx_out->ccm.key = &cctx_out->ks;
3656 }
3657 return 1;
3658 }
3659
3660 default:
3661 return -1;
3662
3663 }
3664}
23916810
DSH		 3665
3666static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 3667 const unsigned char *iv, int enc)
3668{
6435f0f6 3669 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 3670 if (!iv && !key)
3671 return 1;
3672 if (key)
3673 do {
5158c763 3674#ifdef HWAES_CAPABLE
0f113f3e 3675 if (HWAES_CAPABLE) {
6435f0f6
RL		 3676 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3677 &cctx->ks.ks);
0f113f3e
MC		 3678
3679 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3680 &cctx->ks, (block128_f) HWAES_encrypt);
3681 cctx->str = NULL;
3682 cctx->key_set = 1;
3683 break;
3684 } else
5158c763
MC		 3685#endif
3686#ifdef VPAES_CAPABLE
0f113f3e 3687 if (VPAES_CAPABLE) {
6435f0f6
RL		 3688 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3689 &cctx->ks.ks);
0f113f3e
MC		 3690 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3691 &cctx->ks, (block128_f) vpaes_encrypt);
3692 cctx->str = NULL;
3693 cctx->key_set = 1;
3694 break;
3695 }
5158c763 3696#endif
6435f0f6
RL		 3697 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3698 &cctx->ks.ks);
0f113f3e
MC		 3699 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3700 &cctx->ks, (block128_f) AES_encrypt);
3701 cctx->str = NULL;
3702 cctx->key_set = 1;
3703 } while (0);
3704 if (iv) {
6435f0f6 3705 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 3706 cctx->iv_set = 1;
3707 }
3708 return 1;
3709}
23916810 3710
e75c5a79
DSH		 3711static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3712 const unsigned char *in, size_t len)
3713{
6435f0f6 3714 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
e75c5a79
DSH		 3715 CCM128_CONTEXT *ccm = &cctx->ccm;
3716 /* Encrypt/decrypt must be performed in place */
3717 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
3718 return -1;
3719 /* If encrypting set explicit IV from sequence number (start of AAD) */
6435f0f6
RL		 3720 if (EVP_CIPHER_CTX_encrypting(ctx))
3721 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
3722 EVP_CCM_TLS_EXPLICIT_IV_LEN);
e75c5a79 3723 /* Get rest of IV from explicit IV */
6435f0f6
RL		 3724 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
3725 EVP_CCM_TLS_EXPLICIT_IV_LEN);
e75c5a79
DSH		 3726 /* Correct length value */
3727 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
6435f0f6
RL		 3728 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
3729 len))
e75c5a79
DSH		 3730 return -1;
3731 /* Use saved AAD */
6435f0f6 3732 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
e75c5a79
DSH		 3733 /* Fix buffer to point to payload */
3734 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3735 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
6435f0f6 3736 if (EVP_CIPHER_CTX_encrypting(ctx)) {
e75c5a79
DSH		 3737 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3738 cctx->str) :
3739 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3740 return -1;
3741 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
3742 return -1;
3743 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3744 } else {
3745 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3746 cctx->str) :
3747 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3748 unsigned char tag[16];
3749 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3750 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
3751 return len;
3752 }
3753 }
3754 OPENSSL_cleanse(out, len);
3755 return -1;
3756 }
3757}
3758
17f121de 3759static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3760 const unsigned char *in, size_t len)
3761{
6435f0f6 3762 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 3763 CCM128_CONTEXT *ccm = &cctx->ccm;
3764 /* If not set up, return error */
e75c5a79
DSH		 3765 if (!cctx->key_set)
3766 return -1;
3767
3768 if (cctx->tls_aad_len >= 0)
3769 return aes_ccm_tls_cipher(ctx, out, in, len);
3770
197421b1
DSH		 3771 /* EVP_*Final() doesn't return any data */
3772 if (in == NULL && out != NULL)
3773 return 0;
3774
e75c5a79 3775 if (!cctx->iv_set)
0f113f3e 3776 return -1;
e75c5a79 3777
6435f0f6 3778 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
0f113f3e
MC		 3779 return -1;
3780 if (!out) {
3781 if (!in) {
6435f0f6
RL		 3782 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3783 15 - cctx->L, len))
0f113f3e
MC		 3784 return -1;
3785 cctx->len_set = 1;
3786 return len;
3787 }
3788 /* If have AAD need message length */
3789 if (!cctx->len_set && len)
3790 return -1;
3791 CRYPTO_ccm128_aad(ccm, in, len);
3792 return len;
3793 }
0f113f3e
MC		 3794 /* If not set length yet do it */
3795 if (!cctx->len_set) {
6435f0f6
RL		 3796 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3797 15 - cctx->L, len))
0f113f3e
MC		 3798 return -1;
3799 cctx->len_set = 1;
3800 }
6435f0f6 3801 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 3802 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3803 cctx->str) :
3804 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3805 return -1;
3806 cctx->tag_set = 1;
3807 return len;
3808 } else {
3809 int rv = -1;
3810 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3811 cctx->str) :
3812 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3813 unsigned char tag[16];
3814 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
6435f0f6
RL		 3815 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
3816 cctx->M))
0f113f3e
MC		 3817 rv = len;
3818 }
3819 }
3820 if (rv == -1)
3821 OPENSSL_cleanse(out, len);
3822 cctx->iv_set = 0;
3823 cctx->tag_set = 0;
3824 cctx->len_set = 0;
3825 return rv;
3826 }
0f113f3e
MC		 3827}
3828
5158c763 3829#define aes_ccm_cleanup NULL
0f113f3e 3830
e75c5a79
DSH		 3831BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
3832 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3833 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
3834 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3835 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
3836 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
0f113f3e
MC		 3837
3838typedef struct {
3839 union {
3840 double align;
3841 AES_KEY ks;
3842 } ks;
3843 /* Indicates if IV has been set */
3844 unsigned char *iv;
3845} EVP_AES_WRAP_CTX;
97cf1f6c
DSH		 3846
3847static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 3848 const unsigned char *iv, int enc)
3849{
6435f0f6 3850 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
0f113f3e
MC		 3851 if (!iv && !key)
3852 return 1;
3853 if (key) {
6435f0f6
RL		 3854 if (EVP_CIPHER_CTX_encrypting(ctx))
3855 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3856 &wctx->ks.ks);
0f113f3e 3857 else
6435f0f6
RL		 3858 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3859 &wctx->ks.ks);
0f113f3e
MC		 3860 if (!iv)
3861 wctx->iv = NULL;
3862 }
3863 if (iv) {
6435f0f6
RL		 3864 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
3865 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
0f113f3e
MC		 3866 }
3867 return 1;
3868}
97cf1f6c
DSH		 3869
3870static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3871 const unsigned char *in, size_t inlen)
3872{
6435f0f6 3873 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
0f113f3e
MC		 3874 size_t rv;
3875 /* AES wrap with padding has IV length of 4, without padding 8 */
3876 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
3877 /* No final operation so always return zero length */
3878 if (!in)
3879 return 0;
3880 /* Input length must always be non-zero */
3881 if (!inlen)
3882 return -1;
3883 /* If decrypting need at least 16 bytes and multiple of 8 */
6435f0f6 3884 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
0f113f3e
MC		 3885 return -1;
3886 /* If not padding input must be multiple of 8 */
3887 if (!pad && inlen & 0x7)
3888 return -1;
7141ba31
MC		 3889 if (is_partially_overlapping(out, in, inlen)) {
3890 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3891 return 0;
3892 }
0f113f3e 3893 if (!out) {
6435f0f6 3894 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 3895 /* If padding round up to multiple of 8 */
3896 if (pad)
3897 inlen = (inlen + 7) / 8 * 8;
3898 /* 8 byte prefix */
3899 return inlen + 8;
3900 } else {
3901 /*
3902 * If not padding output will be exactly 8 bytes smaller than
3903 * input. If padding it will be at least 8 bytes smaller but we
3904 * don't know how much.
3905 */
3906 return inlen - 8;
3907 }
3908 }
3909 if (pad) {
6435f0f6 3910 if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e
MC		 3911 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3912 out, in, inlen,
3913 (block128_f) AES_encrypt);
3914 else
3915 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3916 out, in, inlen,
3917 (block128_f) AES_decrypt);
3918 } else {
6435f0f6 3919 if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e
MC		 3920 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3921 out, in, inlen, (block128_f) AES_encrypt);
3922 else
3923 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3924 out, in, inlen, (block128_f) AES_decrypt);
3925 }
3926 return rv ? (int)rv : -1;
3927}
3928
5158c763 3929#define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
0f113f3e
MC		 3930 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3931 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
97cf1f6c
DSH		 3932
3933static const EVP_CIPHER aes_128_wrap = {
0f113f3e
MC		 3934 NID_id_aes128_wrap,
3935 8, 16, 8, WRAP_FLAGS,
3936 aes_wrap_init_key, aes_wrap_cipher,
3937 NULL,
3938 sizeof(EVP_AES_WRAP_CTX),
3939 NULL, NULL, NULL, NULL
3940};
97cf1f6c
DSH		 3941
3942const EVP_CIPHER *EVP_aes_128_wrap(void)
0f113f3e
MC		 3943{
3944 return &aes_128_wrap;
3945}
97cf1f6c
DSH		 3946
3947static const EVP_CIPHER aes_192_wrap = {
0f113f3e
MC		 3948 NID_id_aes192_wrap,
3949 8, 24, 8, WRAP_FLAGS,
3950 aes_wrap_init_key, aes_wrap_cipher,
3951 NULL,
3952 sizeof(EVP_AES_WRAP_CTX),
3953 NULL, NULL, NULL, NULL
3954};
97cf1f6c
DSH		 3955
3956const EVP_CIPHER *EVP_aes_192_wrap(void)
0f113f3e
MC		 3957{
3958 return &aes_192_wrap;
3959}
97cf1f6c
DSH		 3960
3961static const EVP_CIPHER aes_256_wrap = {
0f113f3e
MC		 3962 NID_id_aes256_wrap,
3963 8, 32, 8, WRAP_FLAGS,
3964 aes_wrap_init_key, aes_wrap_cipher,
3965 NULL,
3966 sizeof(EVP_AES_WRAP_CTX),
3967 NULL, NULL, NULL, NULL
3968};
97cf1f6c
DSH		 3969
3970const EVP_CIPHER *EVP_aes_256_wrap(void)
0f113f3e
MC		 3971{
3972 return &aes_256_wrap;
3973}
97cf1f6c 3974
d31fed73 3975static const EVP_CIPHER aes_128_wrap_pad = {
0f113f3e
MC		 3976 NID_id_aes128_wrap_pad,
3977 8, 16, 4, WRAP_FLAGS,
3978 aes_wrap_init_key, aes_wrap_cipher,
3979 NULL,
3980 sizeof(EVP_AES_WRAP_CTX),
3981 NULL, NULL, NULL, NULL
3982};
d31fed73
DSH		 3983
3984const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
0f113f3e
MC		 3985{
3986 return &aes_128_wrap_pad;
3987}
d31fed73
DSH		 3988
3989static const EVP_CIPHER aes_192_wrap_pad = {
0f113f3e
MC		 3990 NID_id_aes192_wrap_pad,
3991 8, 24, 4, WRAP_FLAGS,
3992 aes_wrap_init_key, aes_wrap_cipher,
3993 NULL,
3994 sizeof(EVP_AES_WRAP_CTX),
3995 NULL, NULL, NULL, NULL
3996};
d31fed73
DSH		 3997
3998const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
0f113f3e
MC		 3999{
4000 return &aes_192_wrap_pad;
4001}
d31fed73
DSH		 4002
4003static const EVP_CIPHER aes_256_wrap_pad = {
0f113f3e
MC		 4004 NID_id_aes256_wrap_pad,
4005 8, 32, 4, WRAP_FLAGS,
4006 aes_wrap_init_key, aes_wrap_cipher,
4007 NULL,
4008 sizeof(EVP_AES_WRAP_CTX),
4009 NULL, NULL, NULL, NULL
4010};
d31fed73
DSH		 4011
4012const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
0f113f3e
MC		 4013{
4014 return &aes_256_wrap_pad;
4015}
d31fed73 4016
5158c763 4017#ifndef OPENSSL_NO_OCB
e6b336ef 4018static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 4019{
6435f0f6 4020 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
0f113f3e
MC		 4021 EVP_CIPHER_CTX *newc;
4022 EVP_AES_OCB_CTX *new_octx;
4023
4024 switch (type) {
4025 case EVP_CTRL_INIT:
4026 octx->key_set = 0;
4027 octx->iv_set = 0;
6435f0f6
RL		 4028 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
4029 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
0f113f3e
MC		 4030 octx->taglen = 16;
4031 octx->data_buf_len = 0;
4032 octx->aad_buf_len = 0;
4033 return 1;
4034
e640fa02 4035 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e
MC		 4036 /* IV len must be 1 to 15 */
4037 if (arg <= 0 || arg > 15)
4038 return 0;
4039
4040 octx->ivlen = arg;
4041 return 1;
4042
e640fa02 4043 case EVP_CTRL_AEAD_SET_TAG:
d57d135c
MC		 4044 if (!ptr) {
4045 /* Tag len must be 0 to 16 */
4046 if (arg < 0 || arg > 16)
4047 return 0;
4048
4049 octx->taglen = arg;
4050 return 1;
4051 }
6435f0f6 4052 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 4053 return 0;
4054 memcpy(octx->tag, ptr, arg);
4055 return 1;
4056
e640fa02 4057 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6 4058 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 4059 return 0;
4060
4061 memcpy(ptr, octx->tag, arg);
4062 return 1;
4063
4064 case EVP_CTRL_COPY:
4065 newc = (EVP_CIPHER_CTX *)ptr;
6435f0f6 4066 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
0f113f3e 4067 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
bdc985b1
AP		 4068 &new_octx->ksenc.ks,
4069 &new_octx->ksdec.ks);
0f113f3e
MC		 4070
4071 default:
4072 return -1;
4073
4074 }
4075}
e6b336ef 4076
5158c763
MC		 4077# ifdef HWAES_CAPABLE
4078# ifdef HWAES_ocb_encrypt
02dc0b82
AP		 4079void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
4080 size_t blocks, const void *key,
4081 size_t start_block_num,
4082 unsigned char offset_i[16],
4083 const unsigned char L_[][16],
4084 unsigned char checksum[16]);
5158c763 4085# else
365f95ad 4086# define HWAES_ocb_encrypt ((ocb128_f)NULL)
5158c763
MC		 4087# endif
4088# ifdef HWAES_ocb_decrypt
02dc0b82
AP		 4089void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
4090 size_t blocks, const void *key,
4091 size_t start_block_num,
4092 unsigned char offset_i[16],
4093 const unsigned char L_[][16],
4094 unsigned char checksum[16]);
5158c763 4095# else
365f95ad 4096# define HWAES_ocb_decrypt ((ocb128_f)NULL)
02dc0b82 4097# endif
5158c763 4098# endif
02dc0b82 4099
e6b336ef 4100static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 4101 const unsigned char *iv, int enc)
4102{
6435f0f6 4103 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 4104 if (!iv && !key)
4105 return 1;
4106 if (key) {
4107 do {
4108 /*
4109 * We set both the encrypt and decrypt key here because decrypt
4110 * needs both. We could possibly optimise to remove setting the
4111 * decrypt for an encryption operation.
4112 */
5158c763 4113# ifdef HWAES_CAPABLE
02dc0b82 4114 if (HWAES_CAPABLE) {
6435f0f6
RL		 4115 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4116 &octx->ksenc.ks);
4117 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4118 &octx->ksdec.ks);
02dc0b82
AP		 4119 if (!CRYPTO_ocb128_init(&octx->ocb,
4120 &octx->ksenc.ks, &octx->ksdec.ks,
4121 (block128_f) HWAES_encrypt,
4122 (block128_f) HWAES_decrypt,
4123 enc ? HWAES_ocb_encrypt
4124 : HWAES_ocb_decrypt))
4125 return 0;
4126 break;
4127 }
5158c763
MC		 4128# endif
4129# ifdef VPAES_CAPABLE
0f113f3e 4130 if (VPAES_CAPABLE) {
6435f0f6
RL		 4131 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4132 &octx->ksenc.ks);
4133 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4134 &octx->ksdec.ks);
bdc985b1
AP		 4135 if (!CRYPTO_ocb128_init(&octx->ocb,
4136 &octx->ksenc.ks, &octx->ksdec.ks,
4137 (block128_f) vpaes_encrypt,
bd30091c
AP		 4138 (block128_f) vpaes_decrypt,
4139 NULL))
0f113f3e
MC		 4140 return 0;
4141 break;
4142 }
5158c763 4143# endif
6435f0f6
RL		 4144 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4145 &octx->ksenc.ks);
4146 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4147 &octx->ksdec.ks);
bdc985b1
AP		 4148 if (!CRYPTO_ocb128_init(&octx->ocb,
4149 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 4150 (block128_f) AES_encrypt,
bd30091c
AP		 4151 (block128_f) AES_decrypt,
4152 NULL))
0f113f3e
MC		 4153 return 0;
4154 }
4155 while (0);
4156
4157 /*
4158 * If we have an iv we can set it directly, otherwise use saved IV.
4159 */
4160 if (iv == NULL && octx->iv_set)
4161 iv = octx->iv;
4162 if (iv) {
4163 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
4164 != 1)
4165 return 0;
4166 octx->iv_set = 1;
4167 }
4168 octx->key_set = 1;
4169 } else {
4170 /* If key set use IV, otherwise copy */
4171 if (octx->key_set)
4172 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
4173 else
4174 memcpy(octx->iv, iv, octx->ivlen);
4175 octx->iv_set = 1;
4176 }
4177 return 1;
4178}
e6b336ef
MC		 4179
4180static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 4181 const unsigned char *in, size_t len)
4182{
4183 unsigned char *buf;
4184 int *buf_len;
4185 int written_len = 0;
4186 size_t trailing_len;
6435f0f6 4187 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 4188
4189 /* If IV or Key not set then return error */
4190 if (!octx->iv_set)
4191 return -1;
4192
4193 if (!octx->key_set)
4194 return -1;
4195
0ba5a9ea 4196 if (in != NULL) {
0f113f3e
MC		 4197 /*
4198 * Need to ensure we are only passing full blocks to low level OCB
4199 * routines. We do it here rather than in EVP_EncryptUpdate/
4200 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4201 * and those routines don't support that
4202 */
4203
4204 /* Are we dealing with AAD or normal data here? */
4205 if (out == NULL) {
4206 buf = octx->aad_buf;
4207 buf_len = &(octx->aad_buf_len);
4208 } else {
4209 buf = octx->data_buf;
4210 buf_len = &(octx->data_buf_len);
7141ba31
MC		 4211
4212 if (is_partially_overlapping(out + *buf_len, in, len)) {
4213 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
4214 return 0;
4215 }
0f113f3e
MC		 4216 }
4217
4218 /*
4219 * If we've got a partially filled buffer from a previous call then
4220 * use that data first
4221 */
0ba5a9ea 4222 if (*buf_len > 0) {
0f113f3e
MC		 4223 unsigned int remaining;
4224
0ba5a9ea 4225 remaining = AES_BLOCK_SIZE - (*buf_len);
0f113f3e
MC		 4226 if (remaining > len) {
4227 memcpy(buf + (*buf_len), in, len);
4228 *(buf_len) += len;
4229 return 0;
4230 }
4231 memcpy(buf + (*buf_len), in, remaining);
4232
4233 /*
4234 * If we get here we've filled the buffer, so process it
4235 */
4236 len -= remaining;
4237 in += remaining;
4238 if (out == NULL) {
0ba5a9ea 4239 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
0f113f3e 4240 return -1;
6435f0f6 4241 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0ba5a9ea
MC		 4242 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
4243 AES_BLOCK_SIZE))
0f113f3e
MC		 4244 return -1;
4245 } else {
0ba5a9ea
MC		 4246 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
4247 AES_BLOCK_SIZE))
0f113f3e
MC		 4248 return -1;
4249 }
0ba5a9ea 4250 written_len = AES_BLOCK_SIZE;
0f113f3e 4251 *buf_len = 0;
7c12c7b6
MC		 4252 if (out != NULL)
4253 out += AES_BLOCK_SIZE;
0f113f3e
MC		 4254 }
4255
4256 /* Do we have a partial block to handle at the end? */
0ba5a9ea 4257 trailing_len = len % AES_BLOCK_SIZE;
0f113f3e
MC		 4258
4259 /*
4260 * If we've got some full blocks to handle, then process these first
4261 */
4262 if (len != trailing_len) {
4263 if (out == NULL) {
4264 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
4265 return -1;
6435f0f6 4266 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 4267 if (!CRYPTO_ocb128_encrypt
4268 (&octx->ocb, in, out, len - trailing_len))
4269 return -1;
4270 } else {
4271 if (!CRYPTO_ocb128_decrypt
4272 (&octx->ocb, in, out, len - trailing_len))
4273 return -1;
4274 }
4275 written_len += len - trailing_len;
4276 in += len - trailing_len;
4277 }
4278
4279 /* Handle any trailing partial block */
0ba5a9ea 4280 if (trailing_len > 0) {
0f113f3e
MC		 4281 memcpy(buf, in, trailing_len);
4282 *buf_len = trailing_len;
4283 }
4284
4285 return written_len;
4286 } else {
4287 /*
4288 * First of all empty the buffer of any partial block that we might
4289 * have been provided - both for data and AAD
4290 */
0ba5a9ea 4291 if (octx->data_buf_len > 0) {
6435f0f6 4292 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 4293 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
4294 octx->data_buf_len))
4295 return -1;
4296 } else {
4297 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
4298 octx->data_buf_len))
4299 return -1;
4300 }
4301 written_len = octx->data_buf_len;
4302 octx->data_buf_len = 0;
4303 }
0ba5a9ea 4304 if (octx->aad_buf_len > 0) {
0f113f3e
MC		 4305 if (!CRYPTO_ocb128_aad
4306 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
4307 return -1;
4308 octx->aad_buf_len = 0;
4309 }
4310 /* If decrypting then verify */
6435f0f6 4311 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 4312 if (octx->taglen < 0)
4313 return -1;
4314 if (CRYPTO_ocb128_finish(&octx->ocb,
4315 octx->tag, octx->taglen) != 0)
4316 return -1;
4317 octx->iv_set = 0;
4318 return written_len;
4319 }
4320 /* If encrypting then just get the tag */
4321 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
4322 return -1;
4323 /* Don't reuse the IV */
4324 octx->iv_set = 0;
4325 return written_len;
4326 }
4327}
e6b336ef
MC		 4328
4329static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
0f113f3e 4330{
6435f0f6 4331 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
0f113f3e
MC		 4332 CRYPTO_ocb128_cleanup(&octx->ocb);
4333 return 1;
4334}
e6b336ef 4335
c4aede20
MC		 4336BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
4337 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4338BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
4339 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4340BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
4341 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
5158c763 4342#endif /* OPENSSL_NO_OCB */
b1ceb439
TS		 4343
4344/* AES-SIV mode */
4345#ifndef OPENSSL_NO_SIV
4346
4347typedef SIV128_CONTEXT EVP_AES_SIV_CTX;
4348
4349#define aesni_siv_init_key aes_siv_init_key
4350static int aes_siv_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
4351 const unsigned char *iv, int enc)
4352{
4353 const EVP_CIPHER *ctr;
4354 const EVP_CIPHER *cbc;
4355 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
4356 int klen = EVP_CIPHER_CTX_key_length(ctx) / 2;
4357
4358 if (key == NULL)
4359 return 1;
4360
4361 switch (klen) {
4362 case 16:
4363 cbc = EVP_aes_128_cbc();
4364 ctr = EVP_aes_128_ctr();
4365 break;
4366 case 24:
4367 cbc = EVP_aes_192_cbc();
4368 ctr = EVP_aes_192_ctr();
4369 break;
4370 case 32:
4371 cbc = EVP_aes_256_cbc();
4372 ctr = EVP_aes_256_ctr();
4373 break;
4374 default:
4375 return 0;
4376 }
4377
4378 /* klen is the length of the underlying cipher, not the input key,
4379 which should be twice as long */
4380 return CRYPTO_siv128_init(sctx, key, klen, cbc, ctr);
4381}
4382
4383#define aesni_siv_cipher aes_siv_cipher
4384static int aes_siv_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4385 const unsigned char *in, size_t len)
4386{
4387 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
4388
4389 /* EncryptFinal or DecryptFinal */
4390 if (in == NULL)
4391 return CRYPTO_siv128_finish(sctx);
4392
4393 /* Deal with associated data */
4394 if (out == NULL)
4395 return CRYPTO_siv128_aad(sctx, in, len);
4396
4397 if (EVP_CIPHER_CTX_encrypting(ctx))
4398 return CRYPTO_siv128_encrypt(sctx, in, out, len);
4399
4400 return CRYPTO_siv128_decrypt(sctx, in, out, len);
4401}
4402
4403#define aesni_siv_cleanup aes_siv_cleanup
4404static int aes_siv_cleanup(EVP_CIPHER_CTX *c)
4405{
4406 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
4407
4408 return CRYPTO_siv128_cleanup(sctx);
4409}
4410
4411
4412#define aesni_siv_ctrl aes_siv_ctrl
4413static int aes_siv_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
4414{
4415 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
4416 SIV128_CONTEXT *sctx_out;
4417
4418 switch (type) {
4419 case EVP_CTRL_INIT:
4420 return CRYPTO_siv128_cleanup(sctx);
4421
4422 case EVP_CTRL_SET_SPEED:
4423 return CRYPTO_siv128_speed(sctx, arg);
4424
4425 case EVP_CTRL_AEAD_SET_TAG:
4426 if (!EVP_CIPHER_CTX_encrypting(c))
4427 return CRYPTO_siv128_set_tag(sctx, ptr, arg);
4428 return 1;
4429
4430 case EVP_CTRL_AEAD_GET_TAG:
4431 if (!EVP_CIPHER_CTX_encrypting(c))
4432 return 0;
4433 return CRYPTO_siv128_get_tag(sctx, ptr, arg);
4434
4435 case EVP_CTRL_COPY:
4436 sctx_out = EVP_C_DATA(SIV128_CONTEXT, (EVP_CIPHER_CTX*)ptr);
4437 return CRYPTO_siv128_copy_ctx(sctx_out, sctx);
4438
4439 default:
4440 return -1;
4441
4442 }
4443}
4444
4445#define SIV_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
4446 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
4447 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_COPY \
4448 | EVP_CIPH_CTRL_INIT)
4449
4450BLOCK_CIPHER_custom(NID_aes, 128, 1, 0, siv, SIV, SIV_FLAGS)
4451BLOCK_CIPHER_custom(NID_aes, 192, 1, 0, siv, SIV, SIV_FLAGS)
4452BLOCK_CIPHER_custom(NID_aes, 256, 1, 0, siv, SIV, SIV_FLAGS)
4453#endif
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