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crypto/aes/asm/aes-s390x.pl: replace decrypt flag by macro.
[thirdparty/openssl.git] / crypto / evp / e_aes.c
CommitLineData
aa6bb135
RS		 1/*
2 * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
deb2c1a1 3 *
aa6bb135
RS		 4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
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>
7141ba31 20#include "evp_locl.h"
0f113f3e
MC		 21
22typedef struct {
23 union {
24 double align;
25 AES_KEY ks;
26 } ks;
27 block128_f block;
28 union {
29 cbc128_f cbc;
30 ctr128_f ctr;
31 } stream;
32} EVP_AES_KEY;
33
34typedef struct {
35 union {
36 double align;
37 AES_KEY ks;
38 } ks; /* AES key schedule to use */
39 int key_set; /* Set if key initialised */
40 int iv_set; /* Set if an iv is set */
41 GCM128_CONTEXT gcm;
42 unsigned char *iv; /* Temporary IV store */
43 int ivlen; /* IV length */
44 int taglen;
45 int iv_gen; /* It is OK to generate IVs */
46 int tls_aad_len; /* TLS AAD length */
47 ctr128_f ctr;
48} EVP_AES_GCM_CTX;
49
50typedef struct {
51 union {
52 double align;
53 AES_KEY ks;
54 } ks1, ks2; /* AES key schedules to use */
55 XTS128_CONTEXT xts;
56 void (*stream) (const unsigned char *in,
57 unsigned char *out, size_t length,
58 const AES_KEY *key1, const AES_KEY *key2,
59 const unsigned char iv[16]);
60} EVP_AES_XTS_CTX;
61
62typedef struct {
63 union {
64 double align;
65 AES_KEY ks;
66 } ks; /* AES key schedule to use */
67 int key_set; /* Set if key initialised */
68 int iv_set; /* Set if an iv is set */
69 int tag_set; /* Set if tag is valid */
70 int len_set; /* Set if message length set */
71 int L, M; /* L and M parameters from RFC3610 */
e75c5a79 72 int tls_aad_len; /* TLS AAD length */
0f113f3e
MC		 73 CCM128_CONTEXT ccm;
74 ccm128_f str;
75} EVP_AES_CCM_CTX;
76
5158c763 77#ifndef OPENSSL_NO_OCB
0f113f3e 78typedef struct {
bdc985b1
AP		 79 union {
80 double align;
81 AES_KEY ks;
82 } ksenc; /* AES key schedule to use for encryption */
83 union {
84 double align;
85 AES_KEY ks;
86 } ksdec; /* AES key schedule to use for decryption */
0f113f3e
MC		 87 int key_set; /* Set if key initialised */
88 int iv_set; /* Set if an iv is set */
89 OCB128_CONTEXT ocb;
90 unsigned char *iv; /* Temporary IV store */
91 unsigned char tag[16];
92 unsigned char data_buf[16]; /* Store partial data blocks */
93 unsigned char aad_buf[16]; /* Store partial AAD blocks */
94 int data_buf_len;
95 int aad_buf_len;
96 int ivlen; /* IV length */
97 int taglen;
98} EVP_AES_OCB_CTX;
5158c763 99#endif
e6b336ef 100
5158c763 101#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
17f121de 102
5158c763 103#ifdef VPAES_ASM
8ca28da0 104int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
0f113f3e 105 AES_KEY *key);
8ca28da0 106int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
0f113f3e 107 AES_KEY *key);
8ca28da0
AP		 108
109void vpaes_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 110 const AES_KEY *key);
8ca28da0 111void vpaes_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 112 const AES_KEY *key);
8ca28da0
AP		 113
114void vpaes_cbc_encrypt(const unsigned char *in,
0f113f3e
MC		 115 unsigned char *out,
116 size_t length,
117 const AES_KEY *key, unsigned char *ivec, int enc);
5158c763
MC		 118#endif
119#ifdef BSAES_ASM
a75a52a4 120void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 121 size_t length, const AES_KEY *key,
122 unsigned char ivec[16], int enc);
993adc05 123void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 124 size_t len, const AES_KEY *key,
125 const unsigned char ivec[16]);
60d4e99c 126void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
0f113f3e
MC		 127 size_t len, const AES_KEY *key1,
128 const AES_KEY *key2, const unsigned char iv[16]);
60d4e99c 129void bsaes_xts_decrypt(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]);
5158c763
MC		 132#endif
133#ifdef AES_CTR_ASM
07904e0c 134void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 135 size_t blocks, const AES_KEY *key,
136 const unsigned char ivec[AES_BLOCK_SIZE]);
5158c763
MC		 137#endif
138#ifdef AES_XTS_ASM
96cce820 139void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
0f113f3e
MC		 140 const AES_KEY *key1, const AES_KEY *key2,
141 const unsigned char iv[16]);
96cce820 142void AES_xts_decrypt(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]);
5158c763 145#endif
8ca28da0 146
6944565b 147#if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
5158c763
MC		 148# include "ppc_arch.h"
149# ifdef VPAES_ASM
150# define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
de51e830 151# endif
5158c763
MC		 152# define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
153# define HWAES_set_encrypt_key aes_p8_set_encrypt_key
154# define HWAES_set_decrypt_key aes_p8_set_decrypt_key
155# define HWAES_encrypt aes_p8_encrypt
156# define HWAES_decrypt aes_p8_decrypt
157# define HWAES_cbc_encrypt aes_p8_cbc_encrypt
158# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
46f047d7
AP		 159# define HWAES_xts_encrypt aes_p8_xts_encrypt
160# define HWAES_xts_decrypt aes_p8_xts_decrypt
5158c763 161#endif
07f3e4f3 162
5158c763 163#if defined(AES_ASM) && !defined(I386_ONLY) && ( \
0f113f3e
MC		 164 ((defined(__i386) || defined(__i386__) || \
165 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
166 defined(__x86_64) || defined(__x86_64__) || \
b1a07c38 167 defined(_M_AMD64) || defined(_M_X64) )
8ca28da0 168
c5f6da54 169extern unsigned int OPENSSL_ia32cap_P[];
8ca28da0 170
5158c763
MC		 171# ifdef VPAES_ASM
172# define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
173# endif
174# ifdef BSAES_ASM
175# define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
176# endif
17f121de
AP		 177/*
178 * AES-NI section
179 */
5158c763 180# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
d1fff483
AP		 181
182int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
0f113f3e 183 AES_KEY *key);
d1fff483 184int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
0f113f3e 185 AES_KEY *key);
d1fff483
AP		 186
187void aesni_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 188 const AES_KEY *key);
d1fff483 189void aesni_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 190 const AES_KEY *key);
d1fff483
AP		 191
192void aesni_ecb_encrypt(const unsigned char *in,
0f113f3e
MC		 193 unsigned char *out,
194 size_t length, const AES_KEY *key, int enc);
d1fff483 195void aesni_cbc_encrypt(const unsigned char *in,
0f113f3e
MC		 196 unsigned char *out,
197 size_t length,
198 const AES_KEY *key, unsigned char *ivec, int enc);
d1fff483
AP		 199
200void aesni_ctr32_encrypt_blocks(const unsigned char *in,
0f113f3e
MC		 201 unsigned char *out,
202 size_t blocks,
203 const void *key, const unsigned char *ivec);
17f121de
AP		 204
205void aesni_xts_encrypt(const unsigned char *in,
0f113f3e
MC		 206 unsigned char *out,
207 size_t length,
208 const AES_KEY *key1, const AES_KEY *key2,
209 const unsigned char iv[16]);
17f121de
AP		 210
211void aesni_xts_decrypt(const unsigned char *in,
0f113f3e
MC		 212 unsigned char *out,
213 size_t length,
214 const AES_KEY *key1, const AES_KEY *key2,
215 const unsigned char iv[16]);
216
217void aesni_ccm64_encrypt_blocks(const unsigned char *in,
218 unsigned char *out,
219 size_t blocks,
220 const void *key,
221 const unsigned char ivec[16],
222 unsigned char cmac[16]);
223
224void aesni_ccm64_decrypt_blocks(const unsigned char *in,
225 unsigned char *out,
226 size_t blocks,
227 const void *key,
228 const unsigned char ivec[16],
229 unsigned char cmac[16]);
230
5158c763 231# if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
4e049c52 232size_t aesni_gcm_encrypt(const unsigned char *in,
0f113f3e
MC		 233 unsigned char *out,
234 size_t len,
235 const void *key, unsigned char ivec[16], u64 *Xi);
5158c763 236# define AES_gcm_encrypt aesni_gcm_encrypt
4e049c52 237size_t aesni_gcm_decrypt(const unsigned char *in,
0f113f3e
MC		 238 unsigned char *out,
239 size_t len,
240 const void *key, unsigned char ivec[16], u64 *Xi);
5158c763 241# define AES_gcm_decrypt aesni_gcm_decrypt
0f113f3e
MC		 242void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
243 size_t len);
5158c763 244# define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
0f113f3e 245 gctx->gcm.ghash==gcm_ghash_avx)
5158c763 246# define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
0f113f3e 247 gctx->gcm.ghash==gcm_ghash_avx)
5158c763
MC		 248# undef AES_GCM_ASM2 /* minor size optimization */
249# endif
4e049c52 250
17f121de 251static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 252 const unsigned char *iv, int enc)
253{
254 int ret, mode;
6435f0f6 255 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 256
6435f0f6 257 mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e
MC		 258 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
259 && !enc) {
6435f0f6
RL		 260 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
261 &dat->ks.ks);
0f113f3e
MC		 262 dat->block = (block128_f) aesni_decrypt;
263 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
264 (cbc128_f) aesni_cbc_encrypt : NULL;
265 } else {
6435f0f6
RL		 266 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
267 &dat->ks.ks);
0f113f3e
MC		 268 dat->block = (block128_f) aesni_encrypt;
269 if (mode == EVP_CIPH_CBC_MODE)
270 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
271 else if (mode == EVP_CIPH_CTR_MODE)
272 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
273 else
274 dat->stream.cbc = NULL;
275 }
276
277 if (ret < 0) {
278 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
279 return 0;
280 }
281
282 return 1;
283}
284
285static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
286 const unsigned char *in, size_t len)
d1fff483 287{
6435f0f6
RL		 288 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
289 EVP_CIPHER_CTX_iv_noconst(ctx),
290 EVP_CIPHER_CTX_encrypting(ctx));
d1fff483 291
0f113f3e 292 return 1;
d1fff483
AP		 293}
294
0f113f3e
MC		 295static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
296 const unsigned char *in, size_t len)
d1fff483 297{
6435f0f6 298 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
d1fff483 299
0f113f3e
MC		 300 if (len < bl)
301 return 1;
d1fff483 302
6435f0f6
RL		 303 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
304 EVP_CIPHER_CTX_encrypting(ctx));
d1fff483 305
0f113f3e 306 return 1;
d1fff483
AP		 307}
308
5158c763 309# define aesni_ofb_cipher aes_ofb_cipher
0f113f3e
MC		 310static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
311 const unsigned char *in, size_t len);
d1fff483 312
5158c763 313# define aesni_cfb_cipher aes_cfb_cipher
0f113f3e
MC		 314static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
315 const unsigned char *in, size_t len);
d1fff483 316
5158c763 317# define aesni_cfb8_cipher aes_cfb8_cipher
0f113f3e
MC		 318static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
319 const unsigned char *in, size_t len);
d1fff483 320
5158c763 321# define aesni_cfb1_cipher aes_cfb1_cipher
0f113f3e
MC		 322static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
323 const unsigned char *in, size_t len);
d1fff483 324
5158c763 325# define aesni_ctr_cipher aes_ctr_cipher
17f121de 326static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 327 const unsigned char *in, size_t len);
d1fff483 328
17f121de 329static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 330 const unsigned char *iv, int enc)
331{
6435f0f6 332 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 333 if (!iv && !key)
334 return 1;
335 if (key) {
6435f0f6
RL		 336 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
337 &gctx->ks.ks);
0f113f3e
MC		 338 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
339 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
340 /*
341 * If we have an iv can set it directly, otherwise use saved IV.
342 */
343 if (iv == NULL && gctx->iv_set)
344 iv = gctx->iv;
345 if (iv) {
346 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
347 gctx->iv_set = 1;
348 }
349 gctx->key_set = 1;
350 } else {
351 /* If key set use IV, otherwise copy */
352 if (gctx->key_set)
353 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
354 else
355 memcpy(gctx->iv, iv, gctx->ivlen);
356 gctx->iv_set = 1;
357 gctx->iv_gen = 0;
358 }
359 return 1;
360}
361
5158c763 362# define aesni_gcm_cipher aes_gcm_cipher
17f121de 363static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 364 const unsigned char *in, size_t len);
17f121de
AP		 365
366static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 367 const unsigned char *iv, int enc)
368{
6435f0f6 369 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 370 if (!iv && !key)
371 return 1;
372
373 if (key) {
374 /* key_len is two AES keys */
375 if (enc) {
6435f0f6
RL		 376 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
377 &xctx->ks1.ks);
0f113f3e
MC		 378 xctx->xts.block1 = (block128_f) aesni_encrypt;
379 xctx->stream = aesni_xts_encrypt;
380 } else {
6435f0f6
RL		 381 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
382 &xctx->ks1.ks);
0f113f3e
MC		 383 xctx->xts.block1 = (block128_f) aesni_decrypt;
384 xctx->stream = aesni_xts_decrypt;
385 }
386
6435f0f6
RL		 387 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
388 EVP_CIPHER_CTX_key_length(ctx) * 4,
389 &xctx->ks2.ks);
0f113f3e
MC		 390 xctx->xts.block2 = (block128_f) aesni_encrypt;
391
392 xctx->xts.key1 = &xctx->ks1;
393 }
394
395 if (iv) {
396 xctx->xts.key2 = &xctx->ks2;
6435f0f6 397 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 398 }
399
400 return 1;
401}
402
5158c763 403# define aesni_xts_cipher aes_xts_cipher
17f121de 404static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 405 const unsigned char *in, size_t len);
17f121de
AP		 406
407static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 408 const unsigned char *iv, int enc)
409{
6435f0f6 410 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 411 if (!iv && !key)
412 return 1;
413 if (key) {
6435f0f6
RL		 414 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
415 &cctx->ks.ks);
0f113f3e
MC		 416 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
417 &cctx->ks, (block128_f) aesni_encrypt);
418 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
419 (ccm128_f) aesni_ccm64_decrypt_blocks;
420 cctx->key_set = 1;
421 }
422 if (iv) {
6435f0f6 423 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 424 cctx->iv_set = 1;
425 }
426 return 1;
427}
428
5158c763 429# define aesni_ccm_cipher aes_ccm_cipher
17f121de 430static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 431 const unsigned char *in, size_t len);
17f121de 432
5158c763 433# ifndef OPENSSL_NO_OCB
bd30091c
AP		 434void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
435 size_t blocks, const void *key,
436 size_t start_block_num,
437 unsigned char offset_i[16],
438 const unsigned char L_[][16],
439 unsigned char checksum[16]);
440void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
441 size_t blocks, const void *key,
442 size_t start_block_num,
443 unsigned char offset_i[16],
444 const unsigned char L_[][16],
445 unsigned char checksum[16]);
446
e6b336ef 447static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 448 const unsigned char *iv, int enc)
449{
6435f0f6 450 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 451 if (!iv && !key)
452 return 1;
453 if (key) {
454 do {
455 /*
456 * We set both the encrypt and decrypt key here because decrypt
457 * needs both. We could possibly optimise to remove setting the
458 * decrypt for an encryption operation.
459 */
6435f0f6
RL		 460 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
461 &octx->ksenc.ks);
462 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
463 &octx->ksdec.ks);
bdc985b1
AP		 464 if (!CRYPTO_ocb128_init(&octx->ocb,
465 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 466 (block128_f) aesni_encrypt,
bd30091c
AP		 467 (block128_f) aesni_decrypt,
468 enc ? aesni_ocb_encrypt
469 : aesni_ocb_decrypt))
0f113f3e
MC		 470 return 0;
471 }
472 while (0);
473
474 /*
475 * If we have an iv we can set it directly, otherwise use saved IV.
476 */
477 if (iv == NULL && octx->iv_set)
478 iv = octx->iv;
479 if (iv) {
480 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
481 != 1)
482 return 0;
483 octx->iv_set = 1;
484 }
485 octx->key_set = 1;
486 } else {
487 /* If key set use IV, otherwise copy */
488 if (octx->key_set)
489 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
490 else
491 memcpy(octx->iv, iv, octx->ivlen);
492 octx->iv_set = 1;
493 }
494 return 1;
495}
496
5158c763 497# define aesni_ocb_cipher aes_ocb_cipher
e6b336ef 498static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 499 const unsigned char *in, size_t len);
5158c763 500# endif /* OPENSSL_NO_OCB */
e6b336ef 501
5158c763 502# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
17f121de 503static const EVP_CIPHER aesni_##keylen##_##mode = { \
0f113f3e
MC		 504 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
505 flags|EVP_CIPH_##MODE##_MODE, \
506 aesni_init_key, \
507 aesni_##mode##_cipher, \
508 NULL, \
509 sizeof(EVP_AES_KEY), \
510 NULL,NULL,NULL,NULL }; \
17f121de 511static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 512 nid##_##keylen##_##nmode,blocksize, \
513 keylen/8,ivlen, \
514 flags|EVP_CIPH_##MODE##_MODE, \
515 aes_init_key, \
516 aes_##mode##_cipher, \
517 NULL, \
518 sizeof(EVP_AES_KEY), \
519 NULL,NULL,NULL,NULL }; \
17f121de 520const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
8ca28da0 521{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
17f121de 522
5158c763 523# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
17f121de 524static const EVP_CIPHER aesni_##keylen##_##mode = { \
0f113f3e
MC		 525 nid##_##keylen##_##mode,blocksize, \
526 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
527 flags|EVP_CIPH_##MODE##_MODE, \
528 aesni_##mode##_init_key, \
529 aesni_##mode##_cipher, \
530 aes_##mode##_cleanup, \
531 sizeof(EVP_AES_##MODE##_CTX), \
532 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de 533static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 534 nid##_##keylen##_##mode,blocksize, \
535 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
536 flags|EVP_CIPH_##MODE##_MODE, \
537 aes_##mode##_init_key, \
538 aes_##mode##_cipher, \
539 aes_##mode##_cleanup, \
540 sizeof(EVP_AES_##MODE##_CTX), \
541 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de 542const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
8ca28da0 543{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
d1fff483 544
5158c763 545#elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
c5f6da54 546
5158c763 547# include "sparc_arch.h"
c5f6da54
AP		 548
549extern unsigned int OPENSSL_sparcv9cap_P[];
550
6944565b
AP		 551/*
552 * Initial Fujitsu SPARC64 X support
553 */
554# define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
555# define HWAES_set_encrypt_key aes_fx_set_encrypt_key
556# define HWAES_set_decrypt_key aes_fx_set_decrypt_key
557# define HWAES_encrypt aes_fx_encrypt
558# define HWAES_decrypt aes_fx_decrypt
365f95ad
AP		 559# define HWAES_cbc_encrypt aes_fx_cbc_encrypt
560# define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
6944565b 561
5158c763 562# define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
c5f6da54 563
0f113f3e
MC		 564void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
565void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
566void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
567 const AES_KEY *key);
568void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
569 const AES_KEY *key);
c5f6da54
AP		 570/*
571 * Key-length specific subroutines were chosen for following reason.
572 * Each SPARC T4 core can execute up to 8 threads which share core's
573 * resources. Loading as much key material to registers allows to
574 * minimize references to shared memory interface, as well as amount
575 * of instructions in inner loops [much needed on T4]. But then having
576 * non-key-length specific routines would require conditional branches
577 * either in inner loops or on subroutines' entries. Former is hardly
578 * acceptable, while latter means code size increase to size occupied
0d4fb843 579 * by multiple key-length specific subroutines, so why fight?
c5f6da54 580 */
0f113f3e
MC		 581void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
582 size_t len, const AES_KEY *key,
583 unsigned char *ivec);
584void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
585 size_t len, const AES_KEY *key,
586 unsigned char *ivec);
587void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
588 size_t len, const AES_KEY *key,
589 unsigned char *ivec);
590void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
591 size_t len, const AES_KEY *key,
592 unsigned char *ivec);
593void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
594 size_t len, const AES_KEY *key,
595 unsigned char *ivec);
596void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
597 size_t len, const AES_KEY *key,
598 unsigned char *ivec);
599void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
600 size_t blocks, const AES_KEY *key,
601 unsigned char *ivec);
602void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
603 size_t blocks, const AES_KEY *key,
604 unsigned char *ivec);
605void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
606 size_t blocks, const AES_KEY *key,
607 unsigned char *ivec);
608void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
609 size_t blocks, const AES_KEY *key1,
610 const AES_KEY *key2, const unsigned char *ivec);
611void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
612 size_t blocks, const AES_KEY *key1,
613 const AES_KEY *key2, const unsigned char *ivec);
614void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
615 size_t blocks, const AES_KEY *key1,
616 const AES_KEY *key2, const unsigned char *ivec);
617void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
618 size_t blocks, const AES_KEY *key1,
619 const AES_KEY *key2, const unsigned char *ivec);
c5f6da54
AP		 620
621static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 622 const unsigned char *iv, int enc)
623{
624 int ret, mode, bits;
6435f0f6 625 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 626
6435f0f6
RL		 627 mode = EVP_CIPHER_CTX_mode(ctx);
628 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 629 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
630 && !enc) {
631 ret = 0;
6435f0f6 632 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
0f113f3e
MC		 633 dat->block = (block128_f) aes_t4_decrypt;
634 switch (bits) {
635 case 128:
636 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
637 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
638 break;
639 case 192:
640 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
641 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
642 break;
643 case 256:
644 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
645 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
646 break;
647 default:
648 ret = -1;
649 }
650 } else {
651 ret = 0;
6435f0f6 652 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
0f113f3e
MC		 653 dat->block = (block128_f) aes_t4_encrypt;
654 switch (bits) {
655 case 128:
656 if (mode == EVP_CIPH_CBC_MODE)
657 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
658 else if (mode == EVP_CIPH_CTR_MODE)
659 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
660 else
661 dat->stream.cbc = NULL;
662 break;
663 case 192:
664 if (mode == EVP_CIPH_CBC_MODE)
665 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
666 else if (mode == EVP_CIPH_CTR_MODE)
667 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
668 else
669 dat->stream.cbc = NULL;
670 break;
671 case 256:
672 if (mode == EVP_CIPH_CBC_MODE)
673 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
674 else if (mode == EVP_CIPH_CTR_MODE)
675 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
676 else
677 dat->stream.cbc = NULL;
678 break;
679 default:
680 ret = -1;
681 }
682 }
683
684 if (ret < 0) {
685 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
686 return 0;
687 }
688
689 return 1;
690}
691
5158c763 692# define aes_t4_cbc_cipher aes_cbc_cipher
0f113f3e
MC		 693static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
694 const unsigned char *in, size_t len);
695
5158c763 696# define aes_t4_ecb_cipher aes_ecb_cipher
0f113f3e
MC		 697static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
698 const unsigned char *in, size_t len);
699
5158c763 700# define aes_t4_ofb_cipher aes_ofb_cipher
0f113f3e
MC		 701static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
702 const unsigned char *in, size_t len);
703
5158c763 704# define aes_t4_cfb_cipher aes_cfb_cipher
0f113f3e
MC		 705static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
706 const unsigned char *in, size_t len);
707
5158c763 708# define aes_t4_cfb8_cipher aes_cfb8_cipher
0f113f3e
MC		 709static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
710 const unsigned char *in, size_t len);
711
5158c763 712# define aes_t4_cfb1_cipher aes_cfb1_cipher
0f113f3e
MC		 713static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
714 const unsigned char *in, size_t len);
715
5158c763 716# define aes_t4_ctr_cipher aes_ctr_cipher
c5f6da54 717static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 718 const unsigned char *in, size_t len);
c5f6da54
AP		 719
720static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 721 const unsigned char *iv, int enc)
722{
6435f0f6 723 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 724 if (!iv && !key)
725 return 1;
726 if (key) {
6435f0f6 727 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 728 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
729 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
730 (block128_f) aes_t4_encrypt);
731 switch (bits) {
732 case 128:
733 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
734 break;
735 case 192:
736 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
737 break;
738 case 256:
739 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
740 break;
741 default:
742 return 0;
743 }
744 /*
745 * If we have an iv can set it directly, otherwise use saved IV.
746 */
747 if (iv == NULL && gctx->iv_set)
748 iv = gctx->iv;
749 if (iv) {
750 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
751 gctx->iv_set = 1;
752 }
753 gctx->key_set = 1;
754 } else {
755 /* If key set use IV, otherwise copy */
756 if (gctx->key_set)
757 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
758 else
759 memcpy(gctx->iv, iv, gctx->ivlen);
760 gctx->iv_set = 1;
761 gctx->iv_gen = 0;
762 }
763 return 1;
764}
765
5158c763 766# define aes_t4_gcm_cipher aes_gcm_cipher
c5f6da54 767static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 768 const unsigned char *in, size_t len);
c5f6da54
AP		 769
770static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 771 const unsigned char *iv, int enc)
772{
6435f0f6 773 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 774 if (!iv && !key)
775 return 1;
776
777 if (key) {
6435f0f6 778 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
0f113f3e
MC		 779 xctx->stream = NULL;
780 /* key_len is two AES keys */
781 if (enc) {
782 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
783 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
784 switch (bits) {
785 case 128:
786 xctx->stream = aes128_t4_xts_encrypt;
787 break;
0f113f3e
MC		 788 case 256:
789 xctx->stream = aes256_t4_xts_encrypt;
790 break;
791 default:
792 return 0;
793 }
794 } else {
6435f0f6
RL		 795 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
796 &xctx->ks1.ks);
0f113f3e
MC		 797 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
798 switch (bits) {
799 case 128:
800 xctx->stream = aes128_t4_xts_decrypt;
801 break;
0f113f3e
MC		 802 case 256:
803 xctx->stream = aes256_t4_xts_decrypt;
804 break;
805 default:
806 return 0;
807 }
808 }
809
6435f0f6
RL		 810 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
811 EVP_CIPHER_CTX_key_length(ctx) * 4,
812 &xctx->ks2.ks);
0f113f3e
MC		 813 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
814
815 xctx->xts.key1 = &xctx->ks1;
816 }
817
818 if (iv) {
819 xctx->xts.key2 = &xctx->ks2;
6435f0f6 820 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 821 }
822
823 return 1;
824}
825
5158c763 826# define aes_t4_xts_cipher aes_xts_cipher
c5f6da54 827static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 828 const unsigned char *in, size_t len);
c5f6da54
AP		 829
830static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 831 const unsigned char *iv, int enc)
832{
6435f0f6 833 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 834 if (!iv && !key)
835 return 1;
836 if (key) {
6435f0f6 837 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 838 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
839 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
840 &cctx->ks, (block128_f) aes_t4_encrypt);
bdc985b1 841 cctx->str = NULL;
0f113f3e
MC		 842 cctx->key_set = 1;
843 }
844 if (iv) {
6435f0f6 845 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 846 cctx->iv_set = 1;
847 }
848 return 1;
849}
850
5158c763 851# define aes_t4_ccm_cipher aes_ccm_cipher
c5f6da54 852static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 853 const unsigned char *in, size_t len);
c5f6da54 854
5158c763 855# ifndef OPENSSL_NO_OCB
e6b336ef 856static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 857 const unsigned char *iv, int enc)
858{
6435f0f6 859 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 860 if (!iv && !key)
861 return 1;
862 if (key) {
863 do {
864 /*
865 * We set both the encrypt and decrypt key here because decrypt
866 * needs both. We could possibly optimise to remove setting the
867 * decrypt for an encryption operation.
868 */
6435f0f6
RL		 869 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
870 &octx->ksenc.ks);
871 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
872 &octx->ksdec.ks);
bdc985b1
AP		 873 if (!CRYPTO_ocb128_init(&octx->ocb,
874 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 875 (block128_f) aes_t4_encrypt,
02dc0b82
AP		 876 (block128_f) aes_t4_decrypt,
877 NULL))
0f113f3e
MC		 878 return 0;
879 }
880 while (0);
881
882 /*
883 * If we have an iv we can set it directly, otherwise use saved IV.
884 */
885 if (iv == NULL && octx->iv_set)
886 iv = octx->iv;
887 if (iv) {
888 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
889 != 1)
890 return 0;
891 octx->iv_set = 1;
892 }
893 octx->key_set = 1;
894 } else {
895 /* If key set use IV, otherwise copy */
896 if (octx->key_set)
897 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
898 else
899 memcpy(octx->iv, iv, octx->ivlen);
900 octx->iv_set = 1;
901 }
902 return 1;
903}
904
5158c763 905# define aes_t4_ocb_cipher aes_ocb_cipher
e6b336ef 906static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 907 const unsigned char *in, size_t len);
5158c763 908# endif /* OPENSSL_NO_OCB */
e6b336ef 909
5158c763 910# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
c5f6da54 911static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
0f113f3e
MC		 912 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
913 flags|EVP_CIPH_##MODE##_MODE, \
914 aes_t4_init_key, \
915 aes_t4_##mode##_cipher, \
916 NULL, \
917 sizeof(EVP_AES_KEY), \
918 NULL,NULL,NULL,NULL }; \
c5f6da54 919static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 920 nid##_##keylen##_##nmode,blocksize, \
921 keylen/8,ivlen, \
922 flags|EVP_CIPH_##MODE##_MODE, \
923 aes_init_key, \
924 aes_##mode##_cipher, \
925 NULL, \
926 sizeof(EVP_AES_KEY), \
927 NULL,NULL,NULL,NULL }; \
c5f6da54
AP		 928const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
929{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
930
5158c763 931# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
c5f6da54 932static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
0f113f3e
MC		 933 nid##_##keylen##_##mode,blocksize, \
934 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
935 flags|EVP_CIPH_##MODE##_MODE, \
936 aes_t4_##mode##_init_key, \
937 aes_t4_##mode##_cipher, \
938 aes_##mode##_cleanup, \
939 sizeof(EVP_AES_##MODE##_CTX), \
940 NULL,NULL,aes_##mode##_ctrl,NULL }; \
c5f6da54 941static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 942 nid##_##keylen##_##mode,blocksize, \
943 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
944 flags|EVP_CIPH_##MODE##_MODE, \
945 aes_##mode##_init_key, \
946 aes_##mode##_cipher, \
947 aes_##mode##_cleanup, \
948 sizeof(EVP_AES_##MODE##_CTX), \
949 NULL,NULL,aes_##mode##_ctrl,NULL }; \
c5f6da54
AP		 950const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
951{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
952
5158c763 953#else
17f121de 954
5158c763 955# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
17f121de 956static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 957 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
958 flags|EVP_CIPH_##MODE##_MODE, \
959 aes_init_key, \
960 aes_##mode##_cipher, \
961 NULL, \
962 sizeof(EVP_AES_KEY), \
963 NULL,NULL,NULL,NULL }; \
17f121de
AP		 964const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
965{ return &aes_##keylen##_##mode; }
d1fff483 966
5158c763 967# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
17f121de 968static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 969 nid##_##keylen##_##mode,blocksize, \
970 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
971 flags|EVP_CIPH_##MODE##_MODE, \
972 aes_##mode##_init_key, \
973 aes_##mode##_cipher, \
974 aes_##mode##_cleanup, \
975 sizeof(EVP_AES_##MODE##_CTX), \
976 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de
AP		 977const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
978{ return &aes_##keylen##_##mode; }
9575d1a9 979
5158c763 980#endif
9575d1a9 981
5158c763
MC		 982#if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
983# include "arm_arch.h"
984# if __ARM_MAX_ARCH__>=7
985# if defined(BSAES_ASM)
986# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
987# endif
988# if defined(VPAES_ASM)
989# define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
0f113f3e 990# endif
5158c763
MC		 991# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
992# define HWAES_set_encrypt_key aes_v8_set_encrypt_key
993# define HWAES_set_decrypt_key aes_v8_set_decrypt_key
994# define HWAES_encrypt aes_v8_encrypt
995# define HWAES_decrypt aes_v8_decrypt
996# define HWAES_cbc_encrypt aes_v8_cbc_encrypt
997# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
ddacb8f2 998# endif
5158c763 999#endif
d1fff483 1000
5158c763 1001#if defined(HWAES_CAPABLE)
ddacb8f2 1002int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
0f113f3e 1003 AES_KEY *key);
ddacb8f2 1004int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
0f113f3e 1005 AES_KEY *key);
ddacb8f2 1006void HWAES_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 1007 const AES_KEY *key);
ddacb8f2 1008void HWAES_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 1009 const AES_KEY *key);
ddacb8f2 1010void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 1011 size_t length, const AES_KEY *key,
1012 unsigned char *ivec, const int enc);
ddacb8f2 1013void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 1014 size_t len, const AES_KEY *key,
1015 const unsigned char ivec[16]);
46f047d7
AP		 1016void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
1017 size_t len, const AES_KEY *key1,
1018 const AES_KEY *key2, const unsigned char iv[16]);
1019void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
1020 size_t len, const AES_KEY *key1,
1021 const AES_KEY *key2, const unsigned char iv[16]);
5158c763 1022#endif
ddacb8f2 1023
5158c763 1024#define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
0f113f3e
MC		 1025 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1026 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1027 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1028 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1029 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1030 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1031 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
d1fff483
AP		 1032
1033static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 1034 const unsigned char *iv, int enc)
1035{
1036 int ret, mode;
6435f0f6 1037 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 1038
6435f0f6 1039 mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e 1040 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
c01a3c6d 1041 && !enc) {
5158c763 1042#ifdef HWAES_CAPABLE
0f113f3e 1043 if (HWAES_CAPABLE) {
6435f0f6
RL		 1044 ret = HWAES_set_decrypt_key(key,
1045 EVP_CIPHER_CTX_key_length(ctx) * 8,
1046 &dat->ks.ks);
0f113f3e
MC		 1047 dat->block = (block128_f) HWAES_decrypt;
1048 dat->stream.cbc = NULL;
5158c763 1049# ifdef HWAES_cbc_encrypt
0f113f3e
MC		 1050 if (mode == EVP_CIPH_CBC_MODE)
1051 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
0f113f3e 1052# endif
5158c763
MC		 1053 } else
1054#endif
1055#ifdef BSAES_CAPABLE
0f113f3e 1056 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
6435f0f6
RL		 1057 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1058 &dat->ks.ks);
0f113f3e
MC		 1059 dat->block = (block128_f) AES_decrypt;
1060 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1061 } else
5158c763
MC		 1062#endif
1063#ifdef VPAES_CAPABLE
0f113f3e 1064 if (VPAES_CAPABLE) {
6435f0f6
RL		 1065 ret = vpaes_set_decrypt_key(key,
1066 EVP_CIPHER_CTX_key_length(ctx) * 8,
1067 &dat->ks.ks);
0f113f3e
MC		 1068 dat->block = (block128_f) vpaes_decrypt;
1069 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1070 (cbc128_f) vpaes_cbc_encrypt : NULL;
1071 } else
5158c763 1072#endif
0f113f3e 1073 {
6435f0f6
RL		 1074 ret = AES_set_decrypt_key(key,
1075 EVP_CIPHER_CTX_key_length(ctx) * 8,
1076 &dat->ks.ks);
0f113f3e
MC		 1077 dat->block = (block128_f) AES_decrypt;
1078 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1079 (cbc128_f) AES_cbc_encrypt : NULL;
c01a3c6d 1080 }
0f113f3e 1081 } else
5158c763 1082#ifdef HWAES_CAPABLE
0f113f3e 1083 if (HWAES_CAPABLE) {
6435f0f6
RL		 1084 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1085 &dat->ks.ks);
0f113f3e
MC		 1086 dat->block = (block128_f) HWAES_encrypt;
1087 dat->stream.cbc = NULL;
5158c763 1088# ifdef HWAES_cbc_encrypt
0f113f3e
MC		 1089 if (mode == EVP_CIPH_CBC_MODE)
1090 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1091 else
5158c763
MC		 1092# endif
1093# ifdef HWAES_ctr32_encrypt_blocks
0f113f3e
MC		 1094 if (mode == EVP_CIPH_CTR_MODE)
1095 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1096 else
5158c763 1097# endif
0f113f3e
MC		 1098 (void)0; /* terminate potentially open 'else' */
1099 } else
5158c763
MC		 1100#endif
1101#ifdef BSAES_CAPABLE
0f113f3e 1102 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
6435f0f6
RL		 1103 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1104 &dat->ks.ks);
0f113f3e
MC		 1105 dat->block = (block128_f) AES_encrypt;
1106 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1107 } else
5158c763
MC		 1108#endif
1109#ifdef VPAES_CAPABLE
0f113f3e 1110 if (VPAES_CAPABLE) {
6435f0f6
RL		 1111 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1112 &dat->ks.ks);
0f113f3e
MC		 1113 dat->block = (block128_f) vpaes_encrypt;
1114 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1115 (cbc128_f) vpaes_cbc_encrypt : NULL;
1116 } else
5158c763 1117#endif
0f113f3e 1118 {
6435f0f6
RL		 1119 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1120 &dat->ks.ks);
0f113f3e
MC		 1121 dat->block = (block128_f) AES_encrypt;
1122 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1123 (cbc128_f) AES_cbc_encrypt : NULL;
5158c763 1124#ifdef AES_CTR_ASM
0f113f3e
MC		 1125 if (mode == EVP_CIPH_CTR_MODE)
1126 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
5158c763 1127#endif
0f113f3e 1128 }
d1fff483 1129
0f113f3e
MC		 1130 if (ret < 0) {
1131 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1132 return 0;
1133 }
d1fff483 1134
0f113f3e
MC		 1135 return 1;
1136}
d1fff483 1137
0f113f3e
MC		 1138static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1139 const unsigned char *in, size_t len)
17f121de 1140{
6435f0f6 1141 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 1142
0f113f3e 1143 if (dat->stream.cbc)
6435f0f6
RL		 1144 (*dat->stream.cbc) (in, out, len, &dat->ks,
1145 EVP_CIPHER_CTX_iv_noconst(ctx),
1146 EVP_CIPHER_CTX_encrypting(ctx));
1147 else if (EVP_CIPHER_CTX_encrypting(ctx))
1148 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
1149 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
0f113f3e 1150 else
6435f0f6
RL		 1151 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
1152 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
17f121de 1153
0f113f3e 1154 return 1;
17f121de
AP		 1155}
1156
0f113f3e
MC		 1157static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1158 const unsigned char *in, size_t len)
17f121de 1159{
6435f0f6 1160 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
0f113f3e 1161 size_t i;
6435f0f6 1162 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
17f121de 1163
0f113f3e
MC		 1164 if (len < bl)
1165 return 1;
17f121de 1166
0f113f3e
MC		 1167 for (i = 0, len -= bl; i <= len; i += bl)
1168 (*dat->block) (in + i, out + i, &dat->ks);
17f121de 1169
0f113f3e 1170 return 1;
17f121de 1171}
deb2c1a1 1172
0f113f3e
MC		 1173static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1174 const unsigned char *in, size_t len)
17f121de 1175{
6435f0f6 1176 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 1177
6435f0f6 1178 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 1179 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 1180 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
1181 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 1182 return 1;
17f121de 1183}
deb2c1a1 1184
0f113f3e
MC		 1185static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1186 const unsigned char *in, size_t len)
17f121de 1187{
6435f0f6 1188 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 1189
6435f0f6 1190 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 1191 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 1192 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1193 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1194 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 1195 return 1;
17f121de
AP		 1196}
1197
0f113f3e
MC		 1198static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1199 const unsigned char *in, size_t len)
17f121de 1200{
6435f0f6 1201 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 1202
6435f0f6 1203 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 1204 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 1205 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1206 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1207 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 1208 return 1;
17f121de 1209}
8d1ebe0b 1210
0f113f3e
MC		 1211static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1212 const unsigned char *in, size_t len)
17f121de 1213{
6435f0f6 1214 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 1215
6435f0f6
RL		 1216 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
1217 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 1218 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 1219 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1220 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1221 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e
MC		 1222 return 1;
1223 }
1224
1225 while (len >= MAXBITCHUNK) {
6435f0f6 1226 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 1227 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
6435f0f6
RL		 1228 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1229 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1230 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e
MC		 1231 len -= MAXBITCHUNK;
1232 }
6435f0f6
RL		 1233 if (len) {
1234 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 1235 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
6435f0f6
RL		 1236 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1237 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1238 EVP_CIPHER_CTX_set_num(ctx, num);
1239 }
0f113f3e
MC		 1240
1241 return 1;
17f121de 1242}
8d1ebe0b 1243
0f113f3e
MC		 1244static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1245 const unsigned char *in, size_t len)
d976f992 1246{
6435f0f6
RL		 1247 unsigned int num = EVP_CIPHER_CTX_num(ctx);
1248 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e
MC		 1249
1250 if (dat->stream.ctr)
1251 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
6435f0f6
RL		 1252 EVP_CIPHER_CTX_iv_noconst(ctx),
1253 EVP_CIPHER_CTX_buf_noconst(ctx),
1254 &num, dat->stream.ctr);
0f113f3e
MC		 1255 else
1256 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 1257 EVP_CIPHER_CTX_iv_noconst(ctx),
1258 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
1259 dat->block);
1260 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 1261 return 1;
d976f992
AP		 1262}
1263
0f113f3e
MC		 1264BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1265 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1266 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
bdaa5415
DSH		 1267
1268static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
0f113f3e 1269{
6435f0f6 1270 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
273a0218
BE		 1271 if (gctx == NULL)
1272 return 0;
0f113f3e 1273 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
6435f0f6 1274 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
0f113f3e
MC		 1275 OPENSSL_free(gctx->iv);
1276 return 1;
1277}
bdaa5415 1278
b3d8022e 1279/* increment counter (64-bit int) by 1 */
0f113f3e
MC		 1280static void ctr64_inc(unsigned char *counter)
1281{
1282 int n = 8;
1283 unsigned char c;
1284
1285 do {
1286 --n;
1287 c = counter[n];
1288 ++c;
1289 counter[n] = c;
1290 if (c)
1291 return;
1292 } while (n);
b3d8022e
DSH		 1293}
1294
bdaa5415 1295static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 1296{
6435f0f6 1297 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
0f113f3e
MC		 1298 switch (type) {
1299 case EVP_CTRL_INIT:
1300 gctx->key_set = 0;
1301 gctx->iv_set = 0;
6435f0f6
RL		 1302 gctx->ivlen = EVP_CIPHER_CTX_iv_length(c);
1303 gctx->iv = EVP_CIPHER_CTX_iv_noconst(c);
0f113f3e
MC		 1304 gctx->taglen = -1;
1305 gctx->iv_gen = 0;
1306 gctx->tls_aad_len = -1;
1307 return 1;
1308
e640fa02 1309 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e
MC		 1310 if (arg <= 0)
1311 return 0;
1312 /* Allocate memory for IV if needed */
1313 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
6435f0f6 1314 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
0f113f3e
MC		 1315 OPENSSL_free(gctx->iv);
1316 gctx->iv = OPENSSL_malloc(arg);
90945fa3 1317 if (gctx->iv == NULL)
0f113f3e
MC		 1318 return 0;
1319 }
1320 gctx->ivlen = arg;
1321 return 1;
1322
e640fa02 1323 case EVP_CTRL_AEAD_SET_TAG:
6435f0f6 1324 if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c))
0f113f3e 1325 return 0;
6435f0f6 1326 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
0f113f3e
MC		 1327 gctx->taglen = arg;
1328 return 1;
1329
e640fa02 1330 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6
RL		 1331 if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c)
1332 || gctx->taglen < 0)
0f113f3e 1333 return 0;
6435f0f6 1334 memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg);
0f113f3e
MC		 1335 return 1;
1336
1337 case EVP_CTRL_GCM_SET_IV_FIXED:
1338 /* Special case: -1 length restores whole IV */
1339 if (arg == -1) {
1340 memcpy(gctx->iv, ptr, gctx->ivlen);
1341 gctx->iv_gen = 1;
1342 return 1;
1343 }
1344 /*
1345 * Fixed field must be at least 4 bytes and invocation field at least
1346 * 8.
1347 */
1348 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1349 return 0;
1350 if (arg)
1351 memcpy(gctx->iv, ptr, arg);
6435f0f6
RL		 1352 if (EVP_CIPHER_CTX_encrypting(c)
1353 && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
0f113f3e
MC		 1354 return 0;
1355 gctx->iv_gen = 1;
1356 return 1;
1357
1358 case EVP_CTRL_GCM_IV_GEN:
1359 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1360 return 0;
1361 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1362 if (arg <= 0 || arg > gctx->ivlen)
1363 arg = gctx->ivlen;
1364 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1365 /*
1366 * Invocation field will be at least 8 bytes in size and so no need
1367 * to check wrap around or increment more than last 8 bytes.
1368 */
1369 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1370 gctx->iv_set = 1;
1371 return 1;
1372
1373 case EVP_CTRL_GCM_SET_IV_INV:
6435f0f6
RL		 1374 if (gctx->iv_gen == 0 || gctx->key_set == 0
1375 || EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 1376 return 0;
1377 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1378 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1379 gctx->iv_set = 1;
1380 return 1;
1381
1382 case EVP_CTRL_AEAD_TLS1_AAD:
1383 /* Save the AAD for later use */
c8269881 1384 if (arg != EVP_AEAD_TLS1_AAD_LEN)
0f113f3e 1385 return 0;
6435f0f6 1386 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
0f113f3e
MC		 1387 gctx->tls_aad_len = arg;
1388 {
6435f0f6
RL		 1389 unsigned int len =
1390 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1391 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
0f113f3e 1392 /* Correct length for explicit IV */
2198b3a5
AP		 1393 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1394 return 0;
0f113f3e
MC		 1395 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1396 /* If decrypting correct for tag too */
2198b3a5
AP		 1397 if (!EVP_CIPHER_CTX_encrypting(c)) {
1398 if (len < EVP_GCM_TLS_TAG_LEN)
1399 return 0;
0f113f3e 1400 len -= EVP_GCM_TLS_TAG_LEN;
2198b3a5 1401 }
6435f0f6
RL		 1402 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1403 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
0f113f3e
MC		 1404 }
1405 /* Extra padding: tag appended to record */
1406 return EVP_GCM_TLS_TAG_LEN;
1407
1408 case EVP_CTRL_COPY:
1409 {
1410 EVP_CIPHER_CTX *out = ptr;
6435f0f6 1411 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
0f113f3e
MC		 1412 if (gctx->gcm.key) {
1413 if (gctx->gcm.key != &gctx->ks)
1414 return 0;
1415 gctx_out->gcm.key = &gctx_out->ks;
1416 }
6435f0f6
RL		 1417 if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c))
1418 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
0f113f3e
MC		 1419 else {
1420 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
90945fa3 1421 if (gctx_out->iv == NULL)
0f113f3e
MC		 1422 return 0;
1423 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1424 }
1425 return 1;
1426 }
1427
1428 default:
1429 return -1;
1430
1431 }
1432}
bdaa5415
DSH		 1433
1434static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 1435 const unsigned char *iv, int enc)
1436{
6435f0f6 1437 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 1438 if (!iv && !key)
1439 return 1;
1440 if (key) {
1441 do {
5158c763 1442#ifdef HWAES_CAPABLE
0f113f3e 1443 if (HWAES_CAPABLE) {
6435f0f6
RL		 1444 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1445 &gctx->ks.ks);
0f113f3e
MC		 1446 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1447 (block128_f) HWAES_encrypt);
5158c763 1448# ifdef HWAES_ctr32_encrypt_blocks
0f113f3e 1449 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
5158c763 1450# else
0f113f3e 1451 gctx->ctr = NULL;
5158c763 1452# endif
0f113f3e
MC		 1453 break;
1454 } else
5158c763
MC		 1455#endif
1456#ifdef BSAES_CAPABLE
0f113f3e 1457 if (BSAES_CAPABLE) {
6435f0f6
RL		 1458 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1459 &gctx->ks.ks);
0f113f3e
MC		 1460 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1461 (block128_f) AES_encrypt);
1462 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1463 break;
1464 } else
5158c763
MC		 1465#endif
1466#ifdef VPAES_CAPABLE
0f113f3e 1467 if (VPAES_CAPABLE) {
6435f0f6
RL		 1468 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1469 &gctx->ks.ks);
0f113f3e
MC		 1470 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1471 (block128_f) vpaes_encrypt);
1472 gctx->ctr = NULL;
1473 break;
1474 } else
5158c763 1475#endif
0f113f3e
MC		 1476 (void)0; /* terminate potentially open 'else' */
1477
6435f0f6
RL		 1478 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1479 &gctx->ks.ks);
0f113f3e
MC		 1480 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1481 (block128_f) AES_encrypt);
5158c763 1482#ifdef AES_CTR_ASM
0f113f3e 1483 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
5158c763 1484#else
0f113f3e 1485 gctx->ctr = NULL;
5158c763 1486#endif
0f113f3e
MC		 1487 } while (0);
1488
1489 /*
1490 * If we have an iv can set it directly, otherwise use saved IV.
1491 */
1492 if (iv == NULL && gctx->iv_set)
1493 iv = gctx->iv;
1494 if (iv) {
1495 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1496 gctx->iv_set = 1;
1497 }
1498 gctx->key_set = 1;
1499 } else {
1500 /* If key set use IV, otherwise copy */
1501 if (gctx->key_set)
1502 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1503 else
1504 memcpy(gctx->iv, iv, gctx->ivlen);
1505 gctx->iv_set = 1;
1506 gctx->iv_gen = 0;
1507 }
1508 return 1;
1509}
1510
1511/*
1512 * Handle TLS GCM packet format. This consists of the last portion of the IV
28dd49fa
DSH		 1513 * followed by the payload and finally the tag. On encrypt generate IV,
1514 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1515 * and verify tag.
1516 */
1517
1518static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 1519 const unsigned char *in, size_t len)
1520{
6435f0f6 1521 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 1522 int rv = -1;
1523 /* Encrypt/decrypt must be performed in place */
1524 if (out != in
1525 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1526 return -1;
1527 /*
1528 * Set IV from start of buffer or generate IV and write to start of
1529 * buffer.
1530 */
6435f0f6 1531 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ?
0f113f3e
MC		 1532 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1533 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1534 goto err;
1535 /* Use saved AAD */
6435f0f6
RL		 1536 if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1537 gctx->tls_aad_len))
0f113f3e
MC		 1538 goto err;
1539 /* Fix buffer and length to point to payload */
1540 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1541 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1542 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
6435f0f6 1543 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 1544 /* Encrypt payload */
1545 if (gctx->ctr) {
1546 size_t bulk = 0;
5158c763 1547#if defined(AES_GCM_ASM)
0f113f3e
MC		 1548 if (len >= 32 && AES_GCM_ASM(gctx)) {
1549 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1550 return -1;
1551
1552 bulk = AES_gcm_encrypt(in, out, len,
1553 gctx->gcm.key,
1554 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1555 gctx->gcm.len.u[1] += bulk;
1556 }
5158c763 1557#endif
0f113f3e
MC		 1558 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1559 in + bulk,
1560 out + bulk,
1561 len - bulk, gctx->ctr))
1562 goto err;
1563 } else {
1564 size_t bulk = 0;
5158c763 1565#if defined(AES_GCM_ASM2)
0f113f3e
MC		 1566 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1567 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1568 return -1;
1569
1570 bulk = AES_gcm_encrypt(in, out, len,
1571 gctx->gcm.key,
1572 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1573 gctx->gcm.len.u[1] += bulk;
1574 }
5158c763 1575#endif
0f113f3e
MC		 1576 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1577 in + bulk, out + bulk, len - bulk))
1578 goto err;
1579 }
1580 out += len;
1581 /* Finally write tag */
1582 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1583 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1584 } else {
1585 /* Decrypt */
1586 if (gctx->ctr) {
1587 size_t bulk = 0;
5158c763 1588#if defined(AES_GCM_ASM)
0f113f3e
MC		 1589 if (len >= 16 && AES_GCM_ASM(gctx)) {
1590 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1591 return -1;
1592
1593 bulk = AES_gcm_decrypt(in, out, len,
1594 gctx->gcm.key,
1595 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1596 gctx->gcm.len.u[1] += bulk;
1597 }
5158c763 1598#endif
0f113f3e
MC		 1599 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1600 in + bulk,
1601 out + bulk,
1602 len - bulk, gctx->ctr))
1603 goto err;
1604 } else {
1605 size_t bulk = 0;
5158c763 1606#if defined(AES_GCM_ASM2)
0f113f3e
MC		 1607 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1608 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1609 return -1;
1610
1611 bulk = AES_gcm_decrypt(in, out, len,
1612 gctx->gcm.key,
1613 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1614 gctx->gcm.len.u[1] += bulk;
1615 }
5158c763 1616#endif
0f113f3e
MC		 1617 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1618 in + bulk, out + bulk, len - bulk))
1619 goto err;
1620 }
1621 /* Retrieve tag */
6435f0f6
RL		 1622 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1623 EVP_GCM_TLS_TAG_LEN);
0f113f3e 1624 /* If tag mismatch wipe buffer */
6435f0f6
RL		 1625 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len,
1626 EVP_GCM_TLS_TAG_LEN)) {
0f113f3e
MC		 1627 OPENSSL_cleanse(out, len);
1628 goto err;
1629 }
1630 rv = len;
1631 }
1632
1633 err:
1634 gctx->iv_set = 0;
1635 gctx->tls_aad_len = -1;
1636 return rv;
1637}
28dd49fa 1638
17f121de 1639static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 1640 const unsigned char *in, size_t len)
1641{
6435f0f6 1642 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 1643 /* If not set up, return error */
1644 if (!gctx->key_set)
1645 return -1;
1646
1647 if (gctx->tls_aad_len >= 0)
1648 return aes_gcm_tls_cipher(ctx, out, in, len);
1649
1650 if (!gctx->iv_set)
1651 return -1;
1652 if (in) {
1653 if (out == NULL) {
1654 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1655 return -1;
6435f0f6 1656 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 1657 if (gctx->ctr) {
1658 size_t bulk = 0;
5158c763 1659#if defined(AES_GCM_ASM)
0f113f3e
MC		 1660 if (len >= 32 && AES_GCM_ASM(gctx)) {
1661 size_t res = (16 - gctx->gcm.mres) % 16;
1662
1663 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1664 return -1;
1665
1666 bulk = AES_gcm_encrypt(in + res,
1667 out + res, len - res,
1668 gctx->gcm.key, gctx->gcm.Yi.c,
1669 gctx->gcm.Xi.u);
1670 gctx->gcm.len.u[1] += bulk;
1671 bulk += res;
1672 }
5158c763 1673#endif
0f113f3e
MC		 1674 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1675 in + bulk,
1676 out + bulk,
1677 len - bulk, gctx->ctr))
1678 return -1;
1679 } else {
1680 size_t bulk = 0;
5158c763 1681#if defined(AES_GCM_ASM2)
0f113f3e
MC		 1682 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1683 size_t res = (16 - gctx->gcm.mres) % 16;
1684
1685 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1686 return -1;
1687
1688 bulk = AES_gcm_encrypt(in + res,
1689 out + res, len - res,
1690 gctx->gcm.key, gctx->gcm.Yi.c,
1691 gctx->gcm.Xi.u);
1692 gctx->gcm.len.u[1] += bulk;
1693 bulk += res;
1694 }
5158c763 1695#endif
0f113f3e
MC		 1696 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1697 in + bulk, out + bulk, len - bulk))
1698 return -1;
1699 }
1700 } else {
1701 if (gctx->ctr) {
1702 size_t bulk = 0;
5158c763 1703#if defined(AES_GCM_ASM)
0f113f3e
MC		 1704 if (len >= 16 && AES_GCM_ASM(gctx)) {
1705 size_t res = (16 - gctx->gcm.mres) % 16;
1706
1707 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1708 return -1;
1709
1710 bulk = AES_gcm_decrypt(in + res,
1711 out + res, len - res,
1712 gctx->gcm.key,
1713 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1714 gctx->gcm.len.u[1] += bulk;
1715 bulk += res;
1716 }
5158c763 1717#endif
0f113f3e
MC		 1718 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1719 in + bulk,
1720 out + bulk,
1721 len - bulk, gctx->ctr))
1722 return -1;
1723 } else {
1724 size_t bulk = 0;
5158c763 1725#if defined(AES_GCM_ASM2)
0f113f3e
MC		 1726 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1727 size_t res = (16 - gctx->gcm.mres) % 16;
1728
1729 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1730 return -1;
1731
1732 bulk = AES_gcm_decrypt(in + res,
1733 out + res, len - res,
1734 gctx->gcm.key,
1735 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1736 gctx->gcm.len.u[1] += bulk;
1737 bulk += res;
1738 }
5158c763 1739#endif
0f113f3e
MC		 1740 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1741 in + bulk, out + bulk, len - bulk))
1742 return -1;
1743 }
1744 }
1745 return len;
1746 } else {
6435f0f6 1747 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 1748 if (gctx->taglen < 0)
1749 return -1;
6435f0f6
RL		 1750 if (CRYPTO_gcm128_finish(&gctx->gcm,
1751 EVP_CIPHER_CTX_buf_noconst(ctx),
1752 gctx->taglen) != 0)
0f113f3e
MC		 1753 return -1;
1754 gctx->iv_set = 0;
1755 return 0;
1756 }
6435f0f6 1757 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16);
0f113f3e
MC		 1758 gctx->taglen = 16;
1759 /* Don't reuse the IV */
1760 gctx->iv_set = 0;
1761 return 0;
1762 }
1763
1764}
1765
5158c763 1766#define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
0f113f3e
MC		 1767 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1768 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1769 | EVP_CIPH_CUSTOM_COPY)
1770
1771BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1772 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1773 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1774 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1775 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1776 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
32a2d8dd
DSH		 1777
1778static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 1779{
6435f0f6 1780 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
0f113f3e
MC		 1781 if (type == EVP_CTRL_COPY) {
1782 EVP_CIPHER_CTX *out = ptr;
6435f0f6 1783 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
0f113f3e
MC		 1784 if (xctx->xts.key1) {
1785 if (xctx->xts.key1 != &xctx->ks1)
1786 return 0;
1787 xctx_out->xts.key1 = &xctx_out->ks1;
1788 }
1789 if (xctx->xts.key2) {
1790 if (xctx->xts.key2 != &xctx->ks2)
1791 return 0;
1792 xctx_out->xts.key2 = &xctx_out->ks2;
1793 }
1794 return 1;
1795 } else if (type != EVP_CTRL_INIT)
1796 return -1;
1797 /* key1 and key2 are used as an indicator both key and IV are set */
1798 xctx->xts.key1 = NULL;
1799 xctx->xts.key2 = NULL;
1800 return 1;
1801}
32a2d8dd
DSH		 1802
1803static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 1804 const unsigned char *iv, int enc)
1805{
6435f0f6 1806 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 1807 if (!iv && !key)
1808 return 1;
1809
1810 if (key)
1811 do {
5158c763 1812#ifdef AES_XTS_ASM
0f113f3e 1813 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
5158c763 1814#else
0f113f3e 1815 xctx->stream = NULL;
5158c763 1816#endif
0f113f3e 1817 /* key_len is two AES keys */
5158c763 1818#ifdef HWAES_CAPABLE
0f113f3e
MC		 1819 if (HWAES_CAPABLE) {
1820 if (enc) {
6435f0f6
RL		 1821 HWAES_set_encrypt_key(key,
1822 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 1823 &xctx->ks1.ks);
1824 xctx->xts.block1 = (block128_f) HWAES_encrypt;
46f047d7
AP		 1825# ifdef HWAES_xts_encrypt
1826 xctx->stream = HWAES_xts_encrypt;
1827# endif
0f113f3e 1828 } else {
6435f0f6
RL		 1829 HWAES_set_decrypt_key(key,
1830 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 1831 &xctx->ks1.ks);
1832 xctx->xts.block1 = (block128_f) HWAES_decrypt;
46f047d7
AP		 1833# ifdef HWAES_xts_decrypt
1834 xctx->stream = HWAES_xts_decrypt;
1835#endif
0f113f3e
MC		 1836 }
1837
6435f0f6
RL		 1838 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1839 EVP_CIPHER_CTX_key_length(ctx) * 4,
1840 &xctx->ks2.ks);
0f113f3e
MC		 1841 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1842
1843 xctx->xts.key1 = &xctx->ks1;
1844 break;
1845 } else
5158c763
MC		 1846#endif
1847#ifdef BSAES_CAPABLE
0f113f3e
MC		 1848 if (BSAES_CAPABLE)
1849 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1850 else
5158c763
MC		 1851#endif
1852#ifdef VPAES_CAPABLE
0f113f3e
MC		 1853 if (VPAES_CAPABLE) {
1854 if (enc) {
6435f0f6
RL		 1855 vpaes_set_encrypt_key(key,
1856 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 1857 &xctx->ks1.ks);
1858 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1859 } else {
6435f0f6
RL		 1860 vpaes_set_decrypt_key(key,
1861 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 1862 &xctx->ks1.ks);
1863 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1864 }
1865
6435f0f6
RL		 1866 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1867 EVP_CIPHER_CTX_key_length(ctx) * 4,
1868 &xctx->ks2.ks);
0f113f3e
MC		 1869 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1870
1871 xctx->xts.key1 = &xctx->ks1;
1872 break;
1873 } else
5158c763 1874#endif
0f113f3e
MC		 1875 (void)0; /* terminate potentially open 'else' */
1876
1877 if (enc) {
6435f0f6
RL		 1878 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1879 &xctx->ks1.ks);
0f113f3e
MC		 1880 xctx->xts.block1 = (block128_f) AES_encrypt;
1881 } else {
6435f0f6
RL		 1882 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1883 &xctx->ks1.ks);
0f113f3e
MC		 1884 xctx->xts.block1 = (block128_f) AES_decrypt;
1885 }
1886
6435f0f6
RL		 1887 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1888 EVP_CIPHER_CTX_key_length(ctx) * 4,
1889 &xctx->ks2.ks);
0f113f3e
MC		 1890 xctx->xts.block2 = (block128_f) AES_encrypt;
1891
1892 xctx->xts.key1 = &xctx->ks1;
1893 } while (0);
1894
1895 if (iv) {
1896 xctx->xts.key2 = &xctx->ks2;
6435f0f6 1897 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 1898 }
1899
1900 return 1;
1901}
32a2d8dd 1902
17f121de 1903static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 1904 const unsigned char *in, size_t len)
1905{
6435f0f6 1906 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 1907 if (!xctx->xts.key1 || !xctx->xts.key2)
1908 return 0;
1909 if (!out || !in || len < AES_BLOCK_SIZE)
1910 return 0;
1911 if (xctx->stream)
1912 (*xctx->stream) (in, out, len,
6435f0f6
RL		 1913 xctx->xts.key1, xctx->xts.key2,
1914 EVP_CIPHER_CTX_iv_noconst(ctx));
1915 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
1916 in, out, len,
1917 EVP_CIPHER_CTX_encrypting(ctx)))
0f113f3e
MC		 1918 return 0;
1919 return 1;
1920}
1921
5158c763 1922#define aes_xts_cleanup NULL
0f113f3e 1923
5158c763 1924#define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
0f113f3e
MC		 1925 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1926 | EVP_CIPH_CUSTOM_COPY)
1927
1928BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1929 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
23916810
DSH		 1930
1931static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 1932{
6435f0f6 1933 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
0f113f3e
MC		 1934 switch (type) {
1935 case EVP_CTRL_INIT:
1936 cctx->key_set = 0;
1937 cctx->iv_set = 0;
1938 cctx->L = 8;
1939 cctx->M = 12;
1940 cctx->tag_set = 0;
1941 cctx->len_set = 0;
e75c5a79
DSH		 1942 cctx->tls_aad_len = -1;
1943 return 1;
1944
1945 case EVP_CTRL_AEAD_TLS1_AAD:
1946 /* Save the AAD for later use */
1947 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1948 return 0;
6435f0f6 1949 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
e75c5a79
DSH		 1950 cctx->tls_aad_len = arg;
1951 {
6435f0f6
RL		 1952 uint16_t len =
1953 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1954 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
e75c5a79 1955 /* Correct length for explicit IV */
2198b3a5
AP		 1956 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
1957 return 0;
e75c5a79
DSH		 1958 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1959 /* If decrypting correct for tag too */
2198b3a5
AP		 1960 if (!EVP_CIPHER_CTX_encrypting(c)) {
1961 if (len < cctx->M)
1962 return 0;
e75c5a79 1963 len -= cctx->M;
2198b3a5 1964 }
6435f0f6
RL		 1965 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1966 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
e75c5a79
DSH		 1967 }
1968 /* Extra padding: tag appended to record */
1969 return cctx->M;
1970
1971 case EVP_CTRL_CCM_SET_IV_FIXED:
1972 /* Sanity check length */
1973 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1974 return 0;
1975 /* Just copy to first part of IV */
6435f0f6 1976 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
0f113f3e
MC		 1977 return 1;
1978
e640fa02 1979 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e 1980 arg = 15 - arg;
018fcbec 1981 /* fall thru */
0f113f3e
MC		 1982 case EVP_CTRL_CCM_SET_L:
1983 if (arg < 2 || arg > 8)
1984 return 0;
1985 cctx->L = arg;
1986 return 1;
1987
e640fa02 1988 case EVP_CTRL_AEAD_SET_TAG:
0f113f3e
MC		 1989 if ((arg & 1) || arg < 4 || arg > 16)
1990 return 0;
6435f0f6 1991 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
0f113f3e
MC		 1992 return 0;
1993 if (ptr) {
1994 cctx->tag_set = 1;
6435f0f6 1995 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
0f113f3e
MC		 1996 }
1997 cctx->M = arg;
1998 return 1;
1999
e640fa02 2000 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6 2001 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
0f113f3e
MC		 2002 return 0;
2003 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
2004 return 0;
2005 cctx->tag_set = 0;
2006 cctx->iv_set = 0;
2007 cctx->len_set = 0;
2008 return 1;
2009
2010 case EVP_CTRL_COPY:
2011 {
2012 EVP_CIPHER_CTX *out = ptr;
6435f0f6 2013 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
0f113f3e
MC		 2014 if (cctx->ccm.key) {
2015 if (cctx->ccm.key != &cctx->ks)
2016 return 0;
2017 cctx_out->ccm.key = &cctx_out->ks;
2018 }
2019 return 1;
2020 }
2021
2022 default:
2023 return -1;
2024
2025 }
2026}
23916810
DSH		 2027
2028static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2029 const unsigned char *iv, int enc)
2030{
6435f0f6 2031 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 2032 if (!iv && !key)
2033 return 1;
2034 if (key)
2035 do {
5158c763 2036#ifdef HWAES_CAPABLE
0f113f3e 2037 if (HWAES_CAPABLE) {
6435f0f6
RL		 2038 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2039 &cctx->ks.ks);
0f113f3e
MC		 2040
2041 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2042 &cctx->ks, (block128_f) HWAES_encrypt);
2043 cctx->str = NULL;
2044 cctx->key_set = 1;
2045 break;
2046 } else
5158c763
MC		 2047#endif
2048#ifdef VPAES_CAPABLE
0f113f3e 2049 if (VPAES_CAPABLE) {
6435f0f6
RL		 2050 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2051 &cctx->ks.ks);
0f113f3e
MC		 2052 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2053 &cctx->ks, (block128_f) vpaes_encrypt);
2054 cctx->str = NULL;
2055 cctx->key_set = 1;
2056 break;
2057 }
5158c763 2058#endif
6435f0f6
RL		 2059 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2060 &cctx->ks.ks);
0f113f3e
MC		 2061 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2062 &cctx->ks, (block128_f) AES_encrypt);
2063 cctx->str = NULL;
2064 cctx->key_set = 1;
2065 } while (0);
2066 if (iv) {
6435f0f6 2067 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 2068 cctx->iv_set = 1;
2069 }
2070 return 1;
2071}
23916810 2072
e75c5a79
DSH		 2073static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2074 const unsigned char *in, size_t len)
2075{
6435f0f6 2076 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
e75c5a79
DSH		 2077 CCM128_CONTEXT *ccm = &cctx->ccm;
2078 /* Encrypt/decrypt must be performed in place */
2079 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2080 return -1;
2081 /* If encrypting set explicit IV from sequence number (start of AAD) */
6435f0f6
RL		 2082 if (EVP_CIPHER_CTX_encrypting(ctx))
2083 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
2084 EVP_CCM_TLS_EXPLICIT_IV_LEN);
e75c5a79 2085 /* Get rest of IV from explicit IV */
6435f0f6
RL		 2086 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
2087 EVP_CCM_TLS_EXPLICIT_IV_LEN);
e75c5a79
DSH		 2088 /* Correct length value */
2089 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
6435f0f6
RL		 2090 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
2091 len))
e75c5a79
DSH		 2092 return -1;
2093 /* Use saved AAD */
6435f0f6 2094 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
e75c5a79
DSH		 2095 /* Fix buffer to point to payload */
2096 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2097 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
6435f0f6 2098 if (EVP_CIPHER_CTX_encrypting(ctx)) {
e75c5a79
DSH		 2099 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2100 cctx->str) :
2101 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2102 return -1;
2103 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2104 return -1;
2105 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2106 } else {
2107 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2108 cctx->str) :
2109 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2110 unsigned char tag[16];
2111 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2112 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2113 return len;
2114 }
2115 }
2116 OPENSSL_cleanse(out, len);
2117 return -1;
2118 }
2119}
2120
17f121de 2121static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 2122 const unsigned char *in, size_t len)
2123{
6435f0f6 2124 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 2125 CCM128_CONTEXT *ccm = &cctx->ccm;
2126 /* If not set up, return error */
e75c5a79
DSH		 2127 if (!cctx->key_set)
2128 return -1;
2129
2130 if (cctx->tls_aad_len >= 0)
2131 return aes_ccm_tls_cipher(ctx, out, in, len);
2132
197421b1
DSH		 2133 /* EVP_*Final() doesn't return any data */
2134 if (in == NULL && out != NULL)
2135 return 0;
2136
e75c5a79 2137 if (!cctx->iv_set)
0f113f3e 2138 return -1;
e75c5a79 2139
6435f0f6 2140 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
0f113f3e
MC		 2141 return -1;
2142 if (!out) {
2143 if (!in) {
6435f0f6
RL		 2144 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2145 15 - cctx->L, len))
0f113f3e
MC		 2146 return -1;
2147 cctx->len_set = 1;
2148 return len;
2149 }
2150 /* If have AAD need message length */
2151 if (!cctx->len_set && len)
2152 return -1;
2153 CRYPTO_ccm128_aad(ccm, in, len);
2154 return len;
2155 }
0f113f3e
MC		 2156 /* If not set length yet do it */
2157 if (!cctx->len_set) {
6435f0f6
RL		 2158 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2159 15 - cctx->L, len))
0f113f3e
MC		 2160 return -1;
2161 cctx->len_set = 1;
2162 }
6435f0f6 2163 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 2164 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2165 cctx->str) :
2166 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2167 return -1;
2168 cctx->tag_set = 1;
2169 return len;
2170 } else {
2171 int rv = -1;
2172 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2173 cctx->str) :
2174 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2175 unsigned char tag[16];
2176 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
6435f0f6
RL		 2177 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
2178 cctx->M))
0f113f3e
MC		 2179 rv = len;
2180 }
2181 }
2182 if (rv == -1)
2183 OPENSSL_cleanse(out, len);
2184 cctx->iv_set = 0;
2185 cctx->tag_set = 0;
2186 cctx->len_set = 0;
2187 return rv;
2188 }
0f113f3e
MC		 2189}
2190
5158c763 2191#define aes_ccm_cleanup NULL
0f113f3e 2192
e75c5a79
DSH		 2193BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2194 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2195 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2196 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2197 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2198 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
0f113f3e
MC		 2199
2200typedef struct {
2201 union {
2202 double align;
2203 AES_KEY ks;
2204 } ks;
2205 /* Indicates if IV has been set */
2206 unsigned char *iv;
2207} EVP_AES_WRAP_CTX;
97cf1f6c
DSH		 2208
2209static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2210 const unsigned char *iv, int enc)
2211{
6435f0f6 2212 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
0f113f3e
MC		 2213 if (!iv && !key)
2214 return 1;
2215 if (key) {
6435f0f6
RL		 2216 if (EVP_CIPHER_CTX_encrypting(ctx))
2217 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2218 &wctx->ks.ks);
0f113f3e 2219 else
6435f0f6
RL		 2220 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2221 &wctx->ks.ks);
0f113f3e
MC		 2222 if (!iv)
2223 wctx->iv = NULL;
2224 }
2225 if (iv) {
6435f0f6
RL		 2226 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
2227 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
0f113f3e
MC		 2228 }
2229 return 1;
2230}
97cf1f6c
DSH		 2231
2232static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 2233 const unsigned char *in, size_t inlen)
2234{
6435f0f6 2235 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
0f113f3e
MC		 2236 size_t rv;
2237 /* AES wrap with padding has IV length of 4, without padding 8 */
2238 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2239 /* No final operation so always return zero length */
2240 if (!in)
2241 return 0;
2242 /* Input length must always be non-zero */
2243 if (!inlen)
2244 return -1;
2245 /* If decrypting need at least 16 bytes and multiple of 8 */
6435f0f6 2246 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
0f113f3e
MC		 2247 return -1;
2248 /* If not padding input must be multiple of 8 */
2249 if (!pad && inlen & 0x7)
2250 return -1;
7141ba31
MC		 2251 if (is_partially_overlapping(out, in, inlen)) {
2252 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
2253 return 0;
2254 }
0f113f3e 2255 if (!out) {
6435f0f6 2256 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 2257 /* If padding round up to multiple of 8 */
2258 if (pad)
2259 inlen = (inlen + 7) / 8 * 8;
2260 /* 8 byte prefix */
2261 return inlen + 8;
2262 } else {
2263 /*
2264 * If not padding output will be exactly 8 bytes smaller than
2265 * input. If padding it will be at least 8 bytes smaller but we
2266 * don't know how much.
2267 */
2268 return inlen - 8;
2269 }
2270 }
2271 if (pad) {
6435f0f6 2272 if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e
MC		 2273 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2274 out, in, inlen,
2275 (block128_f) AES_encrypt);
2276 else
2277 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2278 out, in, inlen,
2279 (block128_f) AES_decrypt);
2280 } else {
6435f0f6 2281 if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e
MC		 2282 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2283 out, in, inlen, (block128_f) AES_encrypt);
2284 else
2285 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2286 out, in, inlen, (block128_f) AES_decrypt);
2287 }
2288 return rv ? (int)rv : -1;
2289}
2290
5158c763 2291#define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
0f113f3e
MC		 2292 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2293 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
97cf1f6c
DSH		 2294
2295static const EVP_CIPHER aes_128_wrap = {
0f113f3e
MC		 2296 NID_id_aes128_wrap,
2297 8, 16, 8, WRAP_FLAGS,
2298 aes_wrap_init_key, aes_wrap_cipher,
2299 NULL,
2300 sizeof(EVP_AES_WRAP_CTX),
2301 NULL, NULL, NULL, NULL
2302};
97cf1f6c
DSH		 2303
2304const EVP_CIPHER *EVP_aes_128_wrap(void)
0f113f3e
MC		 2305{
2306 return &aes_128_wrap;
2307}
97cf1f6c
DSH		 2308
2309static const EVP_CIPHER aes_192_wrap = {
0f113f3e
MC		 2310 NID_id_aes192_wrap,
2311 8, 24, 8, WRAP_FLAGS,
2312 aes_wrap_init_key, aes_wrap_cipher,
2313 NULL,
2314 sizeof(EVP_AES_WRAP_CTX),
2315 NULL, NULL, NULL, NULL
2316};
97cf1f6c
DSH		 2317
2318const EVP_CIPHER *EVP_aes_192_wrap(void)
0f113f3e
MC		 2319{
2320 return &aes_192_wrap;
2321}
97cf1f6c
DSH		 2322
2323static const EVP_CIPHER aes_256_wrap = {
0f113f3e
MC		 2324 NID_id_aes256_wrap,
2325 8, 32, 8, WRAP_FLAGS,
2326 aes_wrap_init_key, aes_wrap_cipher,
2327 NULL,
2328 sizeof(EVP_AES_WRAP_CTX),
2329 NULL, NULL, NULL, NULL
2330};
97cf1f6c
DSH		 2331
2332const EVP_CIPHER *EVP_aes_256_wrap(void)
0f113f3e
MC		 2333{
2334 return &aes_256_wrap;
2335}
97cf1f6c 2336
d31fed73 2337static const EVP_CIPHER aes_128_wrap_pad = {
0f113f3e
MC		 2338 NID_id_aes128_wrap_pad,
2339 8, 16, 4, WRAP_FLAGS,
2340 aes_wrap_init_key, aes_wrap_cipher,
2341 NULL,
2342 sizeof(EVP_AES_WRAP_CTX),
2343 NULL, NULL, NULL, NULL
2344};
d31fed73
DSH		 2345
2346const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
0f113f3e
MC		 2347{
2348 return &aes_128_wrap_pad;
2349}
d31fed73
DSH		 2350
2351static const EVP_CIPHER aes_192_wrap_pad = {
0f113f3e
MC		 2352 NID_id_aes192_wrap_pad,
2353 8, 24, 4, WRAP_FLAGS,
2354 aes_wrap_init_key, aes_wrap_cipher,
2355 NULL,
2356 sizeof(EVP_AES_WRAP_CTX),
2357 NULL, NULL, NULL, NULL
2358};
d31fed73
DSH		 2359
2360const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
0f113f3e
MC		 2361{
2362 return &aes_192_wrap_pad;
2363}
d31fed73
DSH		 2364
2365static const EVP_CIPHER aes_256_wrap_pad = {
0f113f3e
MC		 2366 NID_id_aes256_wrap_pad,
2367 8, 32, 4, WRAP_FLAGS,
2368 aes_wrap_init_key, aes_wrap_cipher,
2369 NULL,
2370 sizeof(EVP_AES_WRAP_CTX),
2371 NULL, NULL, NULL, NULL
2372};
d31fed73
DSH		 2373
2374const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
0f113f3e
MC		 2375{
2376 return &aes_256_wrap_pad;
2377}
d31fed73 2378
5158c763 2379#ifndef OPENSSL_NO_OCB
e6b336ef 2380static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 2381{
6435f0f6 2382 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
0f113f3e
MC		 2383 EVP_CIPHER_CTX *newc;
2384 EVP_AES_OCB_CTX *new_octx;
2385
2386 switch (type) {
2387 case EVP_CTRL_INIT:
2388 octx->key_set = 0;
2389 octx->iv_set = 0;
6435f0f6
RL		 2390 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
2391 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
0f113f3e
MC		 2392 octx->taglen = 16;
2393 octx->data_buf_len = 0;
2394 octx->aad_buf_len = 0;
2395 return 1;
2396
e640fa02 2397 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e
MC		 2398 /* IV len must be 1 to 15 */
2399 if (arg <= 0 || arg > 15)
2400 return 0;
2401
2402 octx->ivlen = arg;
2403 return 1;
2404
e640fa02 2405 case EVP_CTRL_AEAD_SET_TAG:
d57d135c
MC		 2406 if (!ptr) {
2407 /* Tag len must be 0 to 16 */
2408 if (arg < 0 || arg > 16)
2409 return 0;
2410
2411 octx->taglen = arg;
2412 return 1;
2413 }
6435f0f6 2414 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 2415 return 0;
2416 memcpy(octx->tag, ptr, arg);
2417 return 1;
2418
e640fa02 2419 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6 2420 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 2421 return 0;
2422
2423 memcpy(ptr, octx->tag, arg);
2424 return 1;
2425
2426 case EVP_CTRL_COPY:
2427 newc = (EVP_CIPHER_CTX *)ptr;
6435f0f6 2428 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
0f113f3e 2429 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
bdc985b1
AP		 2430 &new_octx->ksenc.ks,
2431 &new_octx->ksdec.ks);
0f113f3e
MC		 2432
2433 default:
2434 return -1;
2435
2436 }
2437}
e6b336ef 2438
5158c763
MC		 2439# ifdef HWAES_CAPABLE
2440# ifdef HWAES_ocb_encrypt
02dc0b82
AP		 2441void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
2442 size_t blocks, const void *key,
2443 size_t start_block_num,
2444 unsigned char offset_i[16],
2445 const unsigned char L_[][16],
2446 unsigned char checksum[16]);
5158c763 2447# else
365f95ad 2448# define HWAES_ocb_encrypt ((ocb128_f)NULL)
5158c763
MC		 2449# endif
2450# ifdef HWAES_ocb_decrypt
02dc0b82
AP		 2451void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
2452 size_t blocks, const void *key,
2453 size_t start_block_num,
2454 unsigned char offset_i[16],
2455 const unsigned char L_[][16],
2456 unsigned char checksum[16]);
5158c763 2457# else
365f95ad 2458# define HWAES_ocb_decrypt ((ocb128_f)NULL)
02dc0b82 2459# endif
5158c763 2460# endif
02dc0b82 2461
e6b336ef 2462static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2463 const unsigned char *iv, int enc)
2464{
6435f0f6 2465 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 2466 if (!iv && !key)
2467 return 1;
2468 if (key) {
2469 do {
2470 /*
2471 * We set both the encrypt and decrypt key here because decrypt
2472 * needs both. We could possibly optimise to remove setting the
2473 * decrypt for an encryption operation.
2474 */
5158c763 2475# ifdef HWAES_CAPABLE
02dc0b82 2476 if (HWAES_CAPABLE) {
6435f0f6
RL		 2477 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2478 &octx->ksenc.ks);
2479 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2480 &octx->ksdec.ks);
02dc0b82
AP		 2481 if (!CRYPTO_ocb128_init(&octx->ocb,
2482 &octx->ksenc.ks, &octx->ksdec.ks,
2483 (block128_f) HWAES_encrypt,
2484 (block128_f) HWAES_decrypt,
2485 enc ? HWAES_ocb_encrypt
2486 : HWAES_ocb_decrypt))
2487 return 0;
2488 break;
2489 }
5158c763
MC		 2490# endif
2491# ifdef VPAES_CAPABLE
0f113f3e 2492 if (VPAES_CAPABLE) {
6435f0f6
RL		 2493 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2494 &octx->ksenc.ks);
2495 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2496 &octx->ksdec.ks);
bdc985b1
AP		 2497 if (!CRYPTO_ocb128_init(&octx->ocb,
2498 &octx->ksenc.ks, &octx->ksdec.ks,
2499 (block128_f) vpaes_encrypt,
bd30091c
AP		 2500 (block128_f) vpaes_decrypt,
2501 NULL))
0f113f3e
MC		 2502 return 0;
2503 break;
2504 }
5158c763 2505# endif
6435f0f6
RL		 2506 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2507 &octx->ksenc.ks);
2508 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2509 &octx->ksdec.ks);
bdc985b1
AP		 2510 if (!CRYPTO_ocb128_init(&octx->ocb,
2511 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 2512 (block128_f) AES_encrypt,
bd30091c
AP		 2513 (block128_f) AES_decrypt,
2514 NULL))
0f113f3e
MC		 2515 return 0;
2516 }
2517 while (0);
2518
2519 /*
2520 * If we have an iv we can set it directly, otherwise use saved IV.
2521 */
2522 if (iv == NULL && octx->iv_set)
2523 iv = octx->iv;
2524 if (iv) {
2525 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2526 != 1)
2527 return 0;
2528 octx->iv_set = 1;
2529 }
2530 octx->key_set = 1;
2531 } else {
2532 /* If key set use IV, otherwise copy */
2533 if (octx->key_set)
2534 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2535 else
2536 memcpy(octx->iv, iv, octx->ivlen);
2537 octx->iv_set = 1;
2538 }
2539 return 1;
2540}
e6b336ef
MC		 2541
2542static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 2543 const unsigned char *in, size_t len)
2544{
2545 unsigned char *buf;
2546 int *buf_len;
2547 int written_len = 0;
2548 size_t trailing_len;
6435f0f6 2549 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 2550
2551 /* If IV or Key not set then return error */
2552 if (!octx->iv_set)
2553 return -1;
2554
2555 if (!octx->key_set)
2556 return -1;
2557
0ba5a9ea 2558 if (in != NULL) {
0f113f3e
MC		 2559 /*
2560 * Need to ensure we are only passing full blocks to low level OCB
2561 * routines. We do it here rather than in EVP_EncryptUpdate/
2562 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2563 * and those routines don't support that
2564 */
2565
2566 /* Are we dealing with AAD or normal data here? */
2567 if (out == NULL) {
2568 buf = octx->aad_buf;
2569 buf_len = &(octx->aad_buf_len);
2570 } else {
2571 buf = octx->data_buf;
2572 buf_len = &(octx->data_buf_len);
7141ba31
MC		 2573
2574 if (is_partially_overlapping(out + *buf_len, in, len)) {
2575 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
2576 return 0;
2577 }
0f113f3e
MC		 2578 }
2579
2580 /*
2581 * If we've got a partially filled buffer from a previous call then
2582 * use that data first
2583 */
0ba5a9ea 2584 if (*buf_len > 0) {
0f113f3e
MC		 2585 unsigned int remaining;
2586
0ba5a9ea 2587 remaining = AES_BLOCK_SIZE - (*buf_len);
0f113f3e
MC		 2588 if (remaining > len) {
2589 memcpy(buf + (*buf_len), in, len);
2590 *(buf_len) += len;
2591 return 0;
2592 }
2593 memcpy(buf + (*buf_len), in, remaining);
2594
2595 /*
2596 * If we get here we've filled the buffer, so process it
2597 */
2598 len -= remaining;
2599 in += remaining;
2600 if (out == NULL) {
0ba5a9ea 2601 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
0f113f3e 2602 return -1;
6435f0f6 2603 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0ba5a9ea
MC		 2604 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
2605 AES_BLOCK_SIZE))
0f113f3e
MC		 2606 return -1;
2607 } else {
0ba5a9ea
MC		 2608 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
2609 AES_BLOCK_SIZE))
0f113f3e
MC		 2610 return -1;
2611 }
0ba5a9ea 2612 written_len = AES_BLOCK_SIZE;
0f113f3e 2613 *buf_len = 0;
7c12c7b6
MC		 2614 if (out != NULL)
2615 out += AES_BLOCK_SIZE;
0f113f3e
MC		 2616 }
2617
2618 /* Do we have a partial block to handle at the end? */
0ba5a9ea 2619 trailing_len = len % AES_BLOCK_SIZE;
0f113f3e
MC		 2620
2621 /*
2622 * If we've got some full blocks to handle, then process these first
2623 */
2624 if (len != trailing_len) {
2625 if (out == NULL) {
2626 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2627 return -1;
6435f0f6 2628 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 2629 if (!CRYPTO_ocb128_encrypt
2630 (&octx->ocb, in, out, len - trailing_len))
2631 return -1;
2632 } else {
2633 if (!CRYPTO_ocb128_decrypt
2634 (&octx->ocb, in, out, len - trailing_len))
2635 return -1;
2636 }
2637 written_len += len - trailing_len;
2638 in += len - trailing_len;
2639 }
2640
2641 /* Handle any trailing partial block */
0ba5a9ea 2642 if (trailing_len > 0) {
0f113f3e
MC		 2643 memcpy(buf, in, trailing_len);
2644 *buf_len = trailing_len;
2645 }
2646
2647 return written_len;
2648 } else {
2649 /*
2650 * First of all empty the buffer of any partial block that we might
2651 * have been provided - both for data and AAD
2652 */
0ba5a9ea 2653 if (octx->data_buf_len > 0) {
6435f0f6 2654 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 2655 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2656 octx->data_buf_len))
2657 return -1;
2658 } else {
2659 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2660 octx->data_buf_len))
2661 return -1;
2662 }
2663 written_len = octx->data_buf_len;
2664 octx->data_buf_len = 0;
2665 }
0ba5a9ea 2666 if (octx->aad_buf_len > 0) {
0f113f3e
MC		 2667 if (!CRYPTO_ocb128_aad
2668 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2669 return -1;
2670 octx->aad_buf_len = 0;
2671 }
2672 /* If decrypting then verify */
6435f0f6 2673 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 2674 if (octx->taglen < 0)
2675 return -1;
2676 if (CRYPTO_ocb128_finish(&octx->ocb,
2677 octx->tag, octx->taglen) != 0)
2678 return -1;
2679 octx->iv_set = 0;
2680 return written_len;
2681 }
2682 /* If encrypting then just get the tag */
2683 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2684 return -1;
2685 /* Don't reuse the IV */
2686 octx->iv_set = 0;
2687 return written_len;
2688 }
2689}
e6b336ef
MC		 2690
2691static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
0f113f3e 2692{
6435f0f6 2693 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
0f113f3e
MC		 2694 CRYPTO_ocb128_cleanup(&octx->ocb);
2695 return 1;
2696}
e6b336ef 2697
c4aede20
MC		 2698BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
2699 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2700BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
2701 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2702BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
2703 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
5158c763 2704#endif /* OPENSSL_NO_OCB */
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