1 /* ====================================================================
2 * Copyright (c) 2001-2011 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
51 #include <openssl/opensslconf.h>
52 #ifndef OPENSSL_NO_AES
53 #include <openssl/evp.h>
54 #include <openssl/err.h>
57 #include <openssl/aes.h>
59 #include "modes_lcl.h"
60 #include <openssl/rand.h>
62 #ifndef OPENSSL_FIPSCANISTER
63 #undef EVP_CIPH_FLAG_FIPS
64 #define EVP_CIPH_FLAG_FIPS 0
69 union { double align; AES_KEY ks; } ks;
79 union { double align; AES_KEY ks; } ks; /* AES key schedule to use */
80 int key_set; /* Set if key initialised */
81 int iv_set; /* Set if an iv is set */
83 unsigned char *iv; /* Temporary IV store */
84 int ivlen; /* IV length */
86 int iv_gen; /* It is OK to generate IVs */
87 int tls_aad_len; /* TLS AAD length */
93 union { double align; AES_KEY ks; } ks1, ks2; /* AES key schedules to use */
95 void (*stream)(const unsigned char *in,
96 unsigned char *out, size_t length,
97 const AES_KEY *key1, const AES_KEY *key2,
98 const unsigned char iv[16]);
103 union { double align; AES_KEY ks; } ks; /* AES key schedule to use */
104 int key_set; /* Set if key initialised */
105 int iv_set; /* Set if an iv is set */
106 int tag_set; /* Set if tag is valid */
107 int len_set; /* Set if message length set */
108 int L, M; /* L and M parameters from RFC3610 */
113 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
116 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
118 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
121 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
123 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
126 void vpaes_cbc_encrypt(const unsigned char *in,
130 unsigned char *ivec, int enc);
133 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
134 size_t length, const AES_KEY *key,
135 unsigned char ivec[16], int enc);
136 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
137 size_t len, const AES_KEY *key,
138 const unsigned char ivec[16]);
139 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
140 size_t len, const AES_KEY *key1,
141 const AES_KEY *key2, const unsigned char iv[16]);
142 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
143 size_t len, const AES_KEY *key1,
144 const AES_KEY *key2, const unsigned char iv[16]);
147 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
148 size_t blocks, const AES_KEY *key,
149 const unsigned char ivec[AES_BLOCK_SIZE]);
152 void AES_xts_encrypt(const char *inp,char *out,size_t len,
153 const AES_KEY *key1, const AES_KEY *key2,
154 const unsigned char iv[16]);
155 void AES_xts_decrypt(const char *inp,char *out,size_t len,
156 const AES_KEY *key1, const AES_KEY *key2,
157 const unsigned char iv[16]);
160 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
161 ((defined(__i386) || defined(__i386__) || \
162 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
163 defined(__x86_64) || defined(__x86_64__) || \
164 defined(_M_AMD64) || defined(_M_X64) || \
167 extern unsigned int OPENSSL_ia32cap_P[];
170 #define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
173 #define BSAES_CAPABLE VPAES_CAPABLE
178 #define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
180 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
182 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
185 void aesni_encrypt(const unsigned char *in, unsigned char *out,
187 void aesni_decrypt(const unsigned char *in, unsigned char *out,
190 void aesni_ecb_encrypt(const unsigned char *in,
195 void aesni_cbc_encrypt(const unsigned char *in,
199 unsigned char *ivec, int enc);
201 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
205 const unsigned char *ivec);
207 void aesni_xts_encrypt(const unsigned char *in,
210 const AES_KEY *key1, const AES_KEY *key2,
211 const unsigned char iv[16]);
213 void aesni_xts_decrypt(const unsigned char *in,
216 const AES_KEY *key1, const AES_KEY *key2,
217 const unsigned char iv[16]);
219 void aesni_ccm64_encrypt_blocks (const unsigned char *in,
223 const unsigned char ivec[16],
224 unsigned char cmac[16]);
226 void aesni_ccm64_decrypt_blocks (const unsigned char *in,
230 const unsigned char ivec[16],
231 unsigned char cmac[16]);
233 #if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
234 size_t aesni_gcm_encrypt(const unsigned char *in,
238 unsigned char ivec[16],
240 #define AES_gcm_encrypt aesni_gcm_encrypt
241 size_t aesni_gcm_decrypt(const unsigned char *in,
245 unsigned char ivec[16],
247 #define AES_gcm_decrypt aesni_gcm_decrypt
248 void gcm_ghash_avx(u64 Xi[2],const u128 Htable[16],const u8 *in,size_t len);
249 #define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
250 gctx->gcm.ghash==gcm_ghash_avx)
251 #define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
252 gctx->gcm.ghash==gcm_ghash_avx)
253 #undef AES_GCM_ASM2 /* minor size optimization */
256 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
257 const unsigned char *iv, int enc)
260 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
262 mode = ctx->cipher->flags & EVP_CIPH_MODE;
263 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
266 ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data);
267 dat->block = (block128_f)aesni_decrypt;
268 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
269 (cbc128_f)aesni_cbc_encrypt :
273 ret = aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data);
274 dat->block = (block128_f)aesni_encrypt;
275 if (mode==EVP_CIPH_CBC_MODE)
276 dat->stream.cbc = (cbc128_f)aesni_cbc_encrypt;
277 else if (mode==EVP_CIPH_CTR_MODE)
278 dat->stream.ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
280 dat->stream.cbc = NULL;
285 EVPerr(EVP_F_AESNI_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
292 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
293 const unsigned char *in, size_t len)
295 aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);
300 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
301 const unsigned char *in, size_t len)
303 size_t bl = ctx->cipher->block_size;
305 if (len<bl) return 1;
307 aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt);
312 #define aesni_ofb_cipher aes_ofb_cipher
313 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
314 const unsigned char *in,size_t len);
316 #define aesni_cfb_cipher aes_cfb_cipher
317 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
318 const unsigned char *in,size_t len);
320 #define aesni_cfb8_cipher aes_cfb8_cipher
321 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
322 const unsigned char *in,size_t len);
324 #define aesni_cfb1_cipher aes_cfb1_cipher
325 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
326 const unsigned char *in,size_t len);
328 #define aesni_ctr_cipher aes_ctr_cipher
329 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
330 const unsigned char *in, size_t len);
332 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
333 const unsigned char *iv, int enc)
335 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
340 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
341 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
342 (block128_f)aesni_encrypt);
343 gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
344 /* If we have an iv can set it directly, otherwise use
347 if (iv == NULL && gctx->iv_set)
351 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
358 /* If key set use IV, otherwise copy */
360 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
362 memcpy(gctx->iv, iv, gctx->ivlen);
369 #define aesni_gcm_cipher aes_gcm_cipher
370 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
371 const unsigned char *in, size_t len);
373 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
374 const unsigned char *iv, int enc)
376 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
382 /* key_len is two AES keys */
385 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
386 xctx->xts.block1 = (block128_f)aesni_encrypt;
387 xctx->stream = aesni_xts_encrypt;
391 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
392 xctx->xts.block1 = (block128_f)aesni_decrypt;
393 xctx->stream = aesni_xts_decrypt;
396 aesni_set_encrypt_key(key + ctx->key_len/2,
397 ctx->key_len * 4, &xctx->ks2.ks);
398 xctx->xts.block2 = (block128_f)aesni_encrypt;
400 xctx->xts.key1 = &xctx->ks1;
405 xctx->xts.key2 = &xctx->ks2;
406 memcpy(ctx->iv, iv, 16);
412 #define aesni_xts_cipher aes_xts_cipher
413 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
414 const unsigned char *in, size_t len);
416 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
417 const unsigned char *iv, int enc)
419 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
424 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
425 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
426 &cctx->ks, (block128_f)aesni_encrypt);
427 cctx->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks :
428 (ccm128_f)aesni_ccm64_decrypt_blocks;
433 memcpy(ctx->iv, iv, 15 - cctx->L);
439 #define aesni_ccm_cipher aes_ccm_cipher
440 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
441 const unsigned char *in, size_t len);
443 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
444 static const EVP_CIPHER aesni_##keylen##_##mode = { \
445 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
446 flags|EVP_CIPH_##MODE##_MODE, \
448 aesni_##mode##_cipher, \
450 sizeof(EVP_AES_KEY), \
451 NULL,NULL,NULL,NULL }; \
452 static const EVP_CIPHER aes_##keylen##_##mode = { \
453 nid##_##keylen##_##nmode,blocksize, \
455 flags|EVP_CIPH_##MODE##_MODE, \
457 aes_##mode##_cipher, \
459 sizeof(EVP_AES_KEY), \
460 NULL,NULL,NULL,NULL }; \
461 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
462 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
464 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
465 static const EVP_CIPHER aesni_##keylen##_##mode = { \
466 nid##_##keylen##_##mode,blocksize, \
467 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
468 flags|EVP_CIPH_##MODE##_MODE, \
469 aesni_##mode##_init_key, \
470 aesni_##mode##_cipher, \
471 aes_##mode##_cleanup, \
472 sizeof(EVP_AES_##MODE##_CTX), \
473 NULL,NULL,aes_##mode##_ctrl,NULL }; \
474 static const EVP_CIPHER aes_##keylen##_##mode = { \
475 nid##_##keylen##_##mode,blocksize, \
476 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
477 flags|EVP_CIPH_##MODE##_MODE, \
478 aes_##mode##_init_key, \
479 aes_##mode##_cipher, \
480 aes_##mode##_cleanup, \
481 sizeof(EVP_AES_##MODE##_CTX), \
482 NULL,NULL,aes_##mode##_ctrl,NULL }; \
483 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
484 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
486 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
488 #include "sparc_arch.h"
490 extern unsigned int OPENSSL_sparcv9cap_P[];
492 #define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
494 void aes_t4_set_encrypt_key (const unsigned char *key, int bits,
496 void aes_t4_set_decrypt_key (const unsigned char *key, int bits,
498 void aes_t4_encrypt (const unsigned char *in, unsigned char *out,
500 void aes_t4_decrypt (const unsigned char *in, unsigned char *out,
503 * Key-length specific subroutines were chosen for following reason.
504 * Each SPARC T4 core can execute up to 8 threads which share core's
505 * resources. Loading as much key material to registers allows to
506 * minimize references to shared memory interface, as well as amount
507 * of instructions in inner loops [much needed on T4]. But then having
508 * non-key-length specific routines would require conditional branches
509 * either in inner loops or on subroutines' entries. Former is hardly
510 * acceptable, while latter means code size increase to size occupied
511 * by multiple key-length specfic subroutines, so why fight?
513 void aes128_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
514 size_t len, const AES_KEY *key,
515 unsigned char *ivec);
516 void aes128_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
517 size_t len, const AES_KEY *key,
518 unsigned char *ivec);
519 void aes192_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
520 size_t len, const AES_KEY *key,
521 unsigned char *ivec);
522 void aes192_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
523 size_t len, const AES_KEY *key,
524 unsigned char *ivec);
525 void aes256_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
526 size_t len, const AES_KEY *key,
527 unsigned char *ivec);
528 void aes256_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
529 size_t len, const AES_KEY *key,
530 unsigned char *ivec);
531 void aes128_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
532 size_t blocks, const AES_KEY *key,
533 unsigned char *ivec);
534 void aes192_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
535 size_t blocks, const AES_KEY *key,
536 unsigned char *ivec);
537 void aes256_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
538 size_t blocks, const AES_KEY *key,
539 unsigned char *ivec);
540 void aes128_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
541 size_t blocks, const AES_KEY *key1,
542 const AES_KEY *key2, const unsigned char *ivec);
543 void aes128_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
544 size_t blocks, const AES_KEY *key1,
545 const AES_KEY *key2, const unsigned char *ivec);
546 void aes256_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
547 size_t blocks, const AES_KEY *key1,
548 const AES_KEY *key2, const unsigned char *ivec);
549 void aes256_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
550 size_t blocks, const AES_KEY *key1,
551 const AES_KEY *key2, const unsigned char *ivec);
553 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
554 const unsigned char *iv, int enc)
557 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
559 mode = ctx->cipher->flags & EVP_CIPH_MODE;
560 bits = ctx->key_len*8;
561 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
565 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
566 dat->block = (block128_f)aes_t4_decrypt;
569 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
570 (cbc128_f)aes128_t4_cbc_decrypt :
574 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
575 (cbc128_f)aes192_t4_cbc_decrypt :
579 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
580 (cbc128_f)aes256_t4_cbc_decrypt :
589 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
590 dat->block = (block128_f)aes_t4_encrypt;
593 if (mode==EVP_CIPH_CBC_MODE)
594 dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt;
595 else if (mode==EVP_CIPH_CTR_MODE)
596 dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
598 dat->stream.cbc = NULL;
601 if (mode==EVP_CIPH_CBC_MODE)
602 dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt;
603 else if (mode==EVP_CIPH_CTR_MODE)
604 dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
606 dat->stream.cbc = NULL;
609 if (mode==EVP_CIPH_CBC_MODE)
610 dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt;
611 else if (mode==EVP_CIPH_CTR_MODE)
612 dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
614 dat->stream.cbc = NULL;
623 EVPerr(EVP_F_AES_T4_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
630 #define aes_t4_cbc_cipher aes_cbc_cipher
631 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
632 const unsigned char *in, size_t len);
634 #define aes_t4_ecb_cipher aes_ecb_cipher
635 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
636 const unsigned char *in, size_t len);
638 #define aes_t4_ofb_cipher aes_ofb_cipher
639 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
640 const unsigned char *in,size_t len);
642 #define aes_t4_cfb_cipher aes_cfb_cipher
643 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
644 const unsigned char *in,size_t len);
646 #define aes_t4_cfb8_cipher aes_cfb8_cipher
647 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
648 const unsigned char *in,size_t len);
650 #define aes_t4_cfb1_cipher aes_cfb1_cipher
651 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
652 const unsigned char *in,size_t len);
654 #define aes_t4_ctr_cipher aes_ctr_cipher
655 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
656 const unsigned char *in, size_t len);
658 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
659 const unsigned char *iv, int enc)
661 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
666 int bits = ctx->key_len * 8;
667 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
668 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
669 (block128_f)aes_t4_encrypt);
672 gctx->ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
675 gctx->ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
678 gctx->ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
683 /* If we have an iv can set it directly, otherwise use
686 if (iv == NULL && gctx->iv_set)
690 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
697 /* If key set use IV, otherwise copy */
699 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
701 memcpy(gctx->iv, iv, gctx->ivlen);
708 #define aes_t4_gcm_cipher aes_gcm_cipher
709 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
710 const unsigned char *in, size_t len);
712 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
713 const unsigned char *iv, int enc)
715 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
721 int bits = ctx->key_len * 4;
723 /* key_len is two AES keys */
726 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
727 xctx->xts.block1 = (block128_f)aes_t4_encrypt;
730 xctx->stream = aes128_t4_xts_encrypt;
734 xctx->stream = aes192_t4_xts_encrypt;
738 xctx->stream = aes256_t4_xts_encrypt;
746 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
747 xctx->xts.block1 = (block128_f)aes_t4_decrypt;
750 xctx->stream = aes128_t4_xts_decrypt;
754 xctx->stream = aes192_t4_xts_decrypt;
758 xctx->stream = aes256_t4_xts_decrypt;
765 aes_t4_set_encrypt_key(key + ctx->key_len/2,
766 ctx->key_len * 4, &xctx->ks2.ks);
767 xctx->xts.block2 = (block128_f)aes_t4_encrypt;
769 xctx->xts.key1 = &xctx->ks1;
774 xctx->xts.key2 = &xctx->ks2;
775 memcpy(ctx->iv, iv, 16);
781 #define aes_t4_xts_cipher aes_xts_cipher
782 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
783 const unsigned char *in, size_t len);
785 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
786 const unsigned char *iv, int enc)
788 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
793 int bits = ctx->key_len * 8;
794 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
795 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
796 &cctx->ks, (block128_f)aes_t4_encrypt);
800 cctx->str = enc?(ccm128_f)aes128_t4_ccm64_encrypt :
801 (ccm128_f)ae128_t4_ccm64_decrypt;
804 cctx->str = enc?(ccm128_f)aes192_t4_ccm64_encrypt :
805 (ccm128_f)ae192_t4_ccm64_decrypt;
808 cctx->str = enc?(ccm128_f)aes256_t4_ccm64_encrypt :
809 (ccm128_f)ae256_t4_ccm64_decrypt;
819 memcpy(ctx->iv, iv, 15 - cctx->L);
825 #define aes_t4_ccm_cipher aes_ccm_cipher
826 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
827 const unsigned char *in, size_t len);
829 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
830 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
831 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
832 flags|EVP_CIPH_##MODE##_MODE, \
834 aes_t4_##mode##_cipher, \
836 sizeof(EVP_AES_KEY), \
837 NULL,NULL,NULL,NULL }; \
838 static const EVP_CIPHER aes_##keylen##_##mode = { \
839 nid##_##keylen##_##nmode,blocksize, \
841 flags|EVP_CIPH_##MODE##_MODE, \
843 aes_##mode##_cipher, \
845 sizeof(EVP_AES_KEY), \
846 NULL,NULL,NULL,NULL }; \
847 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
848 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
850 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
851 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
852 nid##_##keylen##_##mode,blocksize, \
853 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
854 flags|EVP_CIPH_##MODE##_MODE, \
855 aes_t4_##mode##_init_key, \
856 aes_t4_##mode##_cipher, \
857 aes_##mode##_cleanup, \
858 sizeof(EVP_AES_##MODE##_CTX), \
859 NULL,NULL,aes_##mode##_ctrl,NULL }; \
860 static const EVP_CIPHER aes_##keylen##_##mode = { \
861 nid##_##keylen##_##mode,blocksize, \
862 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
863 flags|EVP_CIPH_##MODE##_MODE, \
864 aes_##mode##_init_key, \
865 aes_##mode##_cipher, \
866 aes_##mode##_cleanup, \
867 sizeof(EVP_AES_##MODE##_CTX), \
868 NULL,NULL,aes_##mode##_ctrl,NULL }; \
869 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
870 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
874 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
875 static const EVP_CIPHER aes_##keylen##_##mode = { \
876 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
877 flags|EVP_CIPH_##MODE##_MODE, \
879 aes_##mode##_cipher, \
881 sizeof(EVP_AES_KEY), \
882 NULL,NULL,NULL,NULL }; \
883 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
884 { return &aes_##keylen##_##mode; }
886 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
887 static const EVP_CIPHER aes_##keylen##_##mode = { \
888 nid##_##keylen##_##mode,blocksize, \
889 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
890 flags|EVP_CIPH_##MODE##_MODE, \
891 aes_##mode##_init_key, \
892 aes_##mode##_cipher, \
893 aes_##mode##_cleanup, \
894 sizeof(EVP_AES_##MODE##_CTX), \
895 NULL,NULL,aes_##mode##_ctrl,NULL }; \
896 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
897 { return &aes_##keylen##_##mode; }
900 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
901 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
902 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
903 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
904 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
905 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
906 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
907 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
909 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
910 const unsigned char *iv, int enc)
913 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
915 mode = ctx->cipher->flags & EVP_CIPH_MODE;
916 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
919 if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE)
921 ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
922 dat->block = (block128_f)AES_decrypt;
923 dat->stream.cbc = (cbc128_f)bsaes_cbc_encrypt;
930 ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
931 dat->block = (block128_f)vpaes_decrypt;
932 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
933 (cbc128_f)vpaes_cbc_encrypt :
939 ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
940 dat->block = (block128_f)AES_decrypt;
941 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
942 (cbc128_f)AES_cbc_encrypt :
947 if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE)
949 ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
950 dat->block = (block128_f)AES_encrypt;
951 dat->stream.ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
958 ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
959 dat->block = (block128_f)vpaes_encrypt;
960 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
961 (cbc128_f)vpaes_cbc_encrypt :
967 ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
968 dat->block = (block128_f)AES_encrypt;
969 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
970 (cbc128_f)AES_cbc_encrypt :
973 if (mode==EVP_CIPH_CTR_MODE)
974 dat->stream.ctr = (ctr128_f)AES_ctr32_encrypt;
980 EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
987 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
988 const unsigned char *in, size_t len)
990 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
993 (*dat->stream.cbc)(in,out,len,&dat->ks,ctx->iv,ctx->encrypt);
994 else if (ctx->encrypt)
995 CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
997 CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
1002 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1003 const unsigned char *in, size_t len)
1005 size_t bl = ctx->cipher->block_size;
1007 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1009 if (len<bl) return 1;
1011 for (i=0,len-=bl;i<=len;i+=bl)
1012 (*dat->block)(in+i,out+i,&dat->ks);
1017 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1018 const unsigned char *in,size_t len)
1020 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1022 CRYPTO_ofb128_encrypt(in,out,len,&dat->ks,
1023 ctx->iv,&ctx->num,dat->block);
1027 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1028 const unsigned char *in,size_t len)
1030 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1032 CRYPTO_cfb128_encrypt(in,out,len,&dat->ks,
1033 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1037 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1038 const unsigned char *in,size_t len)
1040 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1042 CRYPTO_cfb128_8_encrypt(in,out,len,&dat->ks,
1043 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1047 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1048 const unsigned char *in,size_t len)
1050 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1052 if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
1053 CRYPTO_cfb128_1_encrypt(in,out,len,&dat->ks,
1054 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1058 while (len>=MAXBITCHUNK) {
1059 CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,&dat->ks,
1060 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1064 CRYPTO_cfb128_1_encrypt(in,out,len*8,&dat->ks,
1065 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1070 static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out,
1071 const unsigned char *in, size_t len)
1073 unsigned int num = ctx->num;
1074 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1076 if (dat->stream.ctr)
1077 CRYPTO_ctr128_encrypt_ctr32(in,out,len,&dat->ks,
1078 ctx->iv,ctx->buf,&num,dat->stream.ctr);
1080 CRYPTO_ctr128_encrypt(in,out,len,&dat->ks,
1081 ctx->iv,ctx->buf,&num,dat->block);
1082 ctx->num = (size_t)num;
1086 BLOCK_CIPHER_generic_pack(NID_aes,128,EVP_CIPH_FLAG_FIPS)
1087 BLOCK_CIPHER_generic_pack(NID_aes,192,EVP_CIPH_FLAG_FIPS)
1088 BLOCK_CIPHER_generic_pack(NID_aes,256,EVP_CIPH_FLAG_FIPS)
1090 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1092 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1093 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1094 if (gctx->iv != c->iv)
1095 OPENSSL_free(gctx->iv);
1099 /* increment counter (64-bit int) by 1 */
1100 static void ctr64_inc(unsigned char *counter) {
1113 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1115 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1121 gctx->ivlen = c->cipher->iv_len;
1125 gctx->tls_aad_len = -1;
1128 case EVP_CTRL_GCM_SET_IVLEN:
1131 #ifdef OPENSSL_FIPSCANISTER
1132 if (FIPS_module_mode() && !(c->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW)
1136 /* Allocate memory for IV if needed */
1137 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen))
1139 if (gctx->iv != c->iv)
1140 OPENSSL_free(gctx->iv);
1141 gctx->iv = OPENSSL_malloc(arg);
1148 case EVP_CTRL_GCM_SET_TAG:
1149 if (arg <= 0 || arg > 16 || c->encrypt)
1151 memcpy(c->buf, ptr, arg);
1155 case EVP_CTRL_GCM_GET_TAG:
1156 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1158 memcpy(ptr, c->buf, arg);
1161 case EVP_CTRL_GCM_SET_IV_FIXED:
1162 /* Special case: -1 length restores whole IV */
1165 memcpy(gctx->iv, ptr, gctx->ivlen);
1169 /* Fixed field must be at least 4 bytes and invocation field
1172 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1175 memcpy(gctx->iv, ptr, arg);
1177 RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1182 case EVP_CTRL_GCM_IV_GEN:
1183 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1185 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1186 if (arg <= 0 || arg > gctx->ivlen)
1188 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1189 /* Invocation field will be at least 8 bytes in size and
1190 * so no need to check wrap around or increment more than
1193 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1197 case EVP_CTRL_GCM_SET_IV_INV:
1198 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1200 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1201 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1205 case EVP_CTRL_AEAD_TLS1_AAD:
1206 /* Save the AAD for later use */
1209 memcpy(c->buf, ptr, arg);
1210 gctx->tls_aad_len = arg;
1212 unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1];
1213 /* Correct length for explicit IV */
1214 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1215 /* If decrypting correct for tag too */
1217 len -= EVP_GCM_TLS_TAG_LEN;
1218 c->buf[arg-2] = len>>8;
1219 c->buf[arg-1] = len & 0xff;
1221 /* Extra padding: tag appended to record */
1222 return EVP_GCM_TLS_TAG_LEN;
1230 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1231 const unsigned char *iv, int enc)
1233 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1238 #ifdef BSAES_CAPABLE
1241 AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1242 CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1243 (block128_f)AES_encrypt);
1244 gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
1249 #ifdef VPAES_CAPABLE
1252 vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1253 CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1254 (block128_f)vpaes_encrypt);
1260 (void)0; /* terminate potentially open 'else' */
1262 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1263 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
1265 gctx->ctr = (ctr128_f)AES_ctr32_encrypt;
1271 /* If we have an iv can set it directly, otherwise use
1274 if (iv == NULL && gctx->iv_set)
1278 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1285 /* If key set use IV, otherwise copy */
1287 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1289 memcpy(gctx->iv, iv, gctx->ivlen);
1296 /* Handle TLS GCM packet format. This consists of the last portion of the IV
1297 * followed by the payload and finally the tag. On encrypt generate IV,
1298 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1302 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1303 const unsigned char *in, size_t len)
1305 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1307 /* Encrypt/decrypt must be performed in place */
1308 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN+EVP_GCM_TLS_TAG_LEN))
1310 /* Set IV from start of buffer or generate IV and write to start
1313 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1314 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1315 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1318 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1320 /* Fix buffer and length to point to payload */
1321 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1322 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1323 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1326 /* Encrypt payload */
1330 #if defined(AES_GCM_ASM)
1331 if (len>=32 && AES_GCM_ASM(gctx))
1333 if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
1336 bulk = AES_gcm_encrypt(in,out,len,
1340 gctx->gcm.len.u[1] += bulk;
1343 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1352 #if defined(AES_GCM_ASM2)
1353 if (len>=32 && AES_GCM_ASM2(gctx))
1355 if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
1358 bulk = AES_gcm_encrypt(in,out,len,
1362 gctx->gcm.len.u[1] += bulk;
1365 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1372 /* Finally write tag */
1373 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1374 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1382 #if defined(AES_GCM_ASM)
1383 if (len>=16 && AES_GCM_ASM(gctx))
1385 if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
1388 bulk = AES_gcm_decrypt(in,out,len,
1392 gctx->gcm.len.u[1] += bulk;
1395 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1404 #if defined(AES_GCM_ASM2)
1405 if (len>=16 && AES_GCM_ASM2(gctx))
1407 if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
1410 bulk = AES_gcm_decrypt(in,out,len,
1414 gctx->gcm.len.u[1] += bulk;
1417 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1424 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf,
1425 EVP_GCM_TLS_TAG_LEN);
1426 /* If tag mismatch wipe buffer */
1427 if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN))
1429 OPENSSL_cleanse(out, len);
1437 gctx->tls_aad_len = -1;
1441 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1442 const unsigned char *in, size_t len)
1444 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1445 /* If not set up, return error */
1449 if (gctx->tls_aad_len >= 0)
1450 return aes_gcm_tls_cipher(ctx, out, in, len);
1458 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1461 else if (ctx->encrypt)
1466 #if defined(AES_GCM_ASM)
1467 if (len>=32 && AES_GCM_ASM(gctx))
1469 size_t res = (16-gctx->gcm.mres)%16;
1471 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1475 bulk = AES_gcm_encrypt(in+res,
1476 out+res,len-res, gctx->gcm.key,
1479 gctx->gcm.len.u[1] += bulk;
1483 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1492 #if defined(AES_GCM_ASM2)
1493 if (len>=32 && AES_GCM_ASM2(gctx))
1495 size_t res = (16-gctx->gcm.mres)%16;
1497 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1501 bulk = AES_gcm_encrypt(in+res,
1502 out+res,len-res, gctx->gcm.key,
1505 gctx->gcm.len.u[1] += bulk;
1509 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1521 #if defined(AES_GCM_ASM)
1522 if (len>=16 && AES_GCM_ASM(gctx))
1524 size_t res = (16-gctx->gcm.mres)%16;
1526 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1530 bulk = AES_gcm_decrypt(in+res,
1535 gctx->gcm.len.u[1] += bulk;
1539 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1548 #if defined(AES_GCM_ASM2)
1549 if (len>=16 && AES_GCM_ASM2(gctx))
1551 size_t res = (16-gctx->gcm.mres)%16;
1553 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1557 bulk = AES_gcm_decrypt(in+res,
1562 gctx->gcm.len.u[1] += bulk;
1566 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1579 if (gctx->taglen < 0)
1581 if (CRYPTO_gcm128_finish(&gctx->gcm,
1582 ctx->buf, gctx->taglen) != 0)
1587 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1589 /* Don't reuse the IV */
1596 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1597 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1598 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
1600 BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
1601 EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1602 BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,
1603 EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1604 BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
1605 EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1607 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1609 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1610 if (type != EVP_CTRL_INIT)
1612 /* key1 and key2 are used as an indicator both key and IV are set */
1613 xctx->xts.key1 = NULL;
1614 xctx->xts.key2 = NULL;
1618 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1619 const unsigned char *iv, int enc)
1621 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1628 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1630 xctx->stream = NULL;
1632 /* key_len is two AES keys */
1633 #ifdef BSAES_CAPABLE
1635 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1638 #ifdef VPAES_CAPABLE
1643 vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1644 xctx->xts.block1 = (block128_f)vpaes_encrypt;
1648 vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1649 xctx->xts.block1 = (block128_f)vpaes_decrypt;
1652 vpaes_set_encrypt_key(key + ctx->key_len/2,
1653 ctx->key_len * 4, &xctx->ks2.ks);
1654 xctx->xts.block2 = (block128_f)vpaes_encrypt;
1656 xctx->xts.key1 = &xctx->ks1;
1661 (void)0; /* terminate potentially open 'else' */
1665 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1666 xctx->xts.block1 = (block128_f)AES_encrypt;
1670 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1671 xctx->xts.block1 = (block128_f)AES_decrypt;
1674 AES_set_encrypt_key(key + ctx->key_len/2,
1675 ctx->key_len * 4, &xctx->ks2.ks);
1676 xctx->xts.block2 = (block128_f)AES_encrypt;
1678 xctx->xts.key1 = &xctx->ks1;
1683 xctx->xts.key2 = &xctx->ks2;
1684 memcpy(ctx->iv, iv, 16);
1690 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1691 const unsigned char *in, size_t len)
1693 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1694 if (!xctx->xts.key1 || !xctx->xts.key2)
1696 if (!out || !in || len<AES_BLOCK_SIZE)
1698 #ifdef OPENSSL_FIPSCANISTER
1699 /* Requirement of SP800-38E */
1700 if (FIPS_module_mode() && !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) &&
1701 (len > (1UL<<20)*16))
1703 EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_TOO_LARGE);
1708 (*xctx->stream)(in, out, len,
1709 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1710 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1716 #define aes_xts_cleanup NULL
1718 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1719 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
1721 BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
1722 BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
1724 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1726 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1738 case EVP_CTRL_CCM_SET_IVLEN:
1740 case EVP_CTRL_CCM_SET_L:
1741 if (arg < 2 || arg > 8)
1746 case EVP_CTRL_CCM_SET_TAG:
1747 if ((arg & 1) || arg < 4 || arg > 16)
1749 if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
1754 memcpy(c->buf, ptr, arg);
1759 case EVP_CTRL_CCM_GET_TAG:
1760 if (!c->encrypt || !cctx->tag_set)
1762 if(!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1775 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1776 const unsigned char *iv, int enc)
1778 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1783 #ifdef VPAES_CAPABLE
1786 vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks.ks);
1787 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1788 &cctx->ks, (block128_f)vpaes_encrypt);
1794 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1795 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1796 &cctx->ks, (block128_f)AES_encrypt);
1802 memcpy(ctx->iv, iv, 15 - cctx->L);
1808 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1809 const unsigned char *in, size_t len)
1811 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1812 CCM128_CONTEXT *ccm = &cctx->ccm;
1813 /* If not set up, return error */
1814 if (!cctx->iv_set && !cctx->key_set)
1816 if (!ctx->encrypt && !cctx->tag_set)
1822 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len))
1827 /* If have AAD need message length */
1828 if (!cctx->len_set && len)
1830 CRYPTO_ccm128_aad(ccm, in, len);
1833 /* EVP_*Final() doesn't return any data */
1836 /* If not set length yet do it */
1839 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1845 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1847 CRYPTO_ccm128_encrypt(ccm, in, out, len))
1855 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
1857 !CRYPTO_ccm128_decrypt(ccm, in, out, len))
1859 unsigned char tag[16];
1860 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M))
1862 if (!memcmp(tag, ctx->buf, cctx->M))
1867 OPENSSL_cleanse(out, len);
1876 #define aes_ccm_cleanup NULL
1878 BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
1879 BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
1880 BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
1884 union { double align; AES_KEY ks; } ks;
1885 /* Indicates if IV has been set */
1889 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1890 const unsigned char *iv, int enc)
1892 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
1898 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
1900 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
1906 memcpy(ctx->iv, iv, 8);
1912 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1913 const unsigned char *in, size_t inlen)
1915 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
1929 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
1930 (block128_f)AES_encrypt);
1932 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
1933 (block128_f)AES_decrypt);
1934 return rv ? (int)rv : -1;
1937 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
1938 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1939 | EVP_CIPH_ALWAYS_CALL_INIT)
1941 static const EVP_CIPHER aes_128_wrap = {
1943 8, 16, 8, WRAP_FLAGS,
1944 aes_wrap_init_key, aes_wrap_cipher,
1946 sizeof(EVP_AES_WRAP_CTX),
1947 NULL,NULL,NULL,NULL };
1949 const EVP_CIPHER *EVP_aes_128_wrap(void)
1951 return &aes_128_wrap;
1954 static const EVP_CIPHER aes_192_wrap = {
1956 8, 24, 8, WRAP_FLAGS,
1957 aes_wrap_init_key, aes_wrap_cipher,
1959 sizeof(EVP_AES_WRAP_CTX),
1960 NULL,NULL,NULL,NULL };
1962 const EVP_CIPHER *EVP_aes_192_wrap(void)
1964 return &aes_192_wrap;
1967 static const EVP_CIPHER aes_256_wrap = {
1969 8, 32, 8, WRAP_FLAGS,
1970 aes_wrap_init_key, aes_wrap_cipher,
1972 sizeof(EVP_AES_WRAP_CTX),
1973 NULL,NULL,NULL,NULL };
1975 const EVP_CIPHER *EVP_aes_256_wrap(void)
1977 return &aes_256_wrap;