1 /* ====================================================================
2 * Copyright (c) 2001-2014 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/)"
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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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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/crypto.h>
54 # include <openssl/evp.h>
55 # include <openssl/err.h>
58 # include <openssl/aes.h>
59 # include "evp_locl.h"
60 # include "modes_lcl.h"
61 # include <openssl/rand.h>
79 } 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 */
95 } ks1, ks2; /* AES key schedules to use */
97 void (*stream) (const unsigned char *in,
98 unsigned char *out, size_t length,
99 const AES_KEY *key1, const AES_KEY *key2,
100 const unsigned char iv[16]);
107 } ks; /* AES key schedule to use */
108 int key_set; /* Set if key initialised */
109 int iv_set; /* Set if an iv is set */
110 int tag_set; /* Set if tag is valid */
111 int len_set; /* Set if message length set */
112 int L, M; /* L and M parameters from RFC3610 */
113 int tls_aad_len; /* TLS AAD length */
118 # ifndef OPENSSL_NO_OCB
123 } ksenc; /* AES key schedule to use for encryption */
127 } ksdec; /* AES key schedule to use for decryption */
128 int key_set; /* Set if key initialised */
129 int iv_set; /* Set if an iv is set */
131 unsigned char *iv; /* Temporary IV store */
132 unsigned char tag[16];
133 unsigned char data_buf[16]; /* Store partial data blocks */
134 unsigned char aad_buf[16]; /* Store partial AAD blocks */
137 int ivlen; /* IV length */
142 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
145 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
147 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
150 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
152 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
155 void vpaes_cbc_encrypt(const unsigned char *in,
158 const AES_KEY *key, unsigned char *ivec, int enc);
161 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
162 size_t length, const AES_KEY *key,
163 unsigned char ivec[16], int enc);
164 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
165 size_t len, const AES_KEY *key,
166 const unsigned char ivec[16]);
167 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
168 size_t len, const AES_KEY *key1,
169 const AES_KEY *key2, const unsigned char iv[16]);
170 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
171 size_t len, const AES_KEY *key1,
172 const AES_KEY *key2, const unsigned char iv[16]);
175 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
176 size_t blocks, const AES_KEY *key,
177 const unsigned char ivec[AES_BLOCK_SIZE]);
180 void AES_xts_encrypt(const char *inp, char *out, size_t len,
181 const AES_KEY *key1, const AES_KEY *key2,
182 const unsigned char iv[16]);
183 void AES_xts_decrypt(const char *inp, char *out, size_t len,
184 const AES_KEY *key1, const AES_KEY *key2,
185 const unsigned char iv[16]);
188 # if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
189 # include "ppc_arch.h"
191 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
193 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
194 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
195 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
196 # define HWAES_encrypt aes_p8_encrypt
197 # define HWAES_decrypt aes_p8_decrypt
198 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
199 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
202 # if defined(AES_ASM) && !defined(I386_ONLY) && ( \
203 ((defined(__i386) || defined(__i386__) || \
204 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
205 defined(__x86_64) || defined(__x86_64__) || \
206 defined(_M_AMD64) || defined(_M_X64) || \
209 extern unsigned int OPENSSL_ia32cap_P[];
212 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
215 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
220 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
222 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
224 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
227 void aesni_encrypt(const unsigned char *in, unsigned char *out,
229 void aesni_decrypt(const unsigned char *in, unsigned char *out,
232 void aesni_ecb_encrypt(const unsigned char *in,
234 size_t length, const AES_KEY *key, int enc);
235 void aesni_cbc_encrypt(const unsigned char *in,
238 const AES_KEY *key, unsigned char *ivec, int enc);
240 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
243 const void *key, const unsigned char *ivec);
245 void aesni_xts_encrypt(const unsigned char *in,
248 const AES_KEY *key1, const AES_KEY *key2,
249 const unsigned char iv[16]);
251 void aesni_xts_decrypt(const unsigned char *in,
254 const AES_KEY *key1, const AES_KEY *key2,
255 const unsigned char iv[16]);
257 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
261 const unsigned char ivec[16],
262 unsigned char cmac[16]);
264 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
268 const unsigned char ivec[16],
269 unsigned char cmac[16]);
271 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
272 size_t aesni_gcm_encrypt(const unsigned char *in,
275 const void *key, unsigned char ivec[16], u64 *Xi);
276 # define AES_gcm_encrypt aesni_gcm_encrypt
277 size_t aesni_gcm_decrypt(const unsigned char *in,
280 const void *key, unsigned char ivec[16], u64 *Xi);
281 # define AES_gcm_decrypt aesni_gcm_decrypt
282 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
284 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
285 gctx->gcm.ghash==gcm_ghash_avx)
286 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
287 gctx->gcm.ghash==gcm_ghash_avx)
288 # undef AES_GCM_ASM2 /* minor size optimization */
291 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
292 const unsigned char *iv, int enc)
295 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
297 mode = ctx->cipher->flags & EVP_CIPH_MODE;
298 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
300 ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
301 dat->block = (block128_f) aesni_decrypt;
302 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
303 (cbc128_f) aesni_cbc_encrypt : NULL;
305 ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
306 dat->block = (block128_f) aesni_encrypt;
307 if (mode == EVP_CIPH_CBC_MODE)
308 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
309 else if (mode == EVP_CIPH_CTR_MODE)
310 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
312 dat->stream.cbc = NULL;
316 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
323 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
324 const unsigned char *in, size_t len)
326 aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
331 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
332 const unsigned char *in, size_t len)
334 size_t bl = ctx->cipher->block_size;
339 aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
344 # define aesni_ofb_cipher aes_ofb_cipher
345 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
346 const unsigned char *in, size_t len);
348 # define aesni_cfb_cipher aes_cfb_cipher
349 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
350 const unsigned char *in, size_t len);
352 # define aesni_cfb8_cipher aes_cfb8_cipher
353 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
354 const unsigned char *in, size_t len);
356 # define aesni_cfb1_cipher aes_cfb1_cipher
357 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
358 const unsigned char *in, size_t len);
360 # define aesni_ctr_cipher aes_ctr_cipher
361 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
362 const unsigned char *in, size_t len);
364 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
365 const unsigned char *iv, int enc)
367 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
371 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
372 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
373 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
375 * If we have an iv can set it directly, otherwise use saved IV.
377 if (iv == NULL && gctx->iv_set)
380 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
385 /* If key set use IV, otherwise copy */
387 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
389 memcpy(gctx->iv, iv, gctx->ivlen);
396 # define aesni_gcm_cipher aes_gcm_cipher
397 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
398 const unsigned char *in, size_t len);
400 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
401 const unsigned char *iv, int enc)
403 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
408 /* key_len is two AES keys */
410 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
411 xctx->xts.block1 = (block128_f) aesni_encrypt;
412 xctx->stream = aesni_xts_encrypt;
414 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
415 xctx->xts.block1 = (block128_f) aesni_decrypt;
416 xctx->stream = aesni_xts_decrypt;
419 aesni_set_encrypt_key(key + ctx->key_len / 2,
420 ctx->key_len * 4, &xctx->ks2.ks);
421 xctx->xts.block2 = (block128_f) aesni_encrypt;
423 xctx->xts.key1 = &xctx->ks1;
427 xctx->xts.key2 = &xctx->ks2;
428 memcpy(ctx->iv, iv, 16);
434 # define aesni_xts_cipher aes_xts_cipher
435 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
436 const unsigned char *in, size_t len);
438 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
439 const unsigned char *iv, int enc)
441 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
445 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
446 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
447 &cctx->ks, (block128_f) aesni_encrypt);
448 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
449 (ccm128_f) aesni_ccm64_decrypt_blocks;
453 memcpy(ctx->iv, iv, 15 - cctx->L);
459 # define aesni_ccm_cipher aes_ccm_cipher
460 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
461 const unsigned char *in, size_t len);
463 # ifndef OPENSSL_NO_OCB
464 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
465 size_t blocks, const void *key,
466 size_t start_block_num,
467 unsigned char offset_i[16],
468 const unsigned char L_[][16],
469 unsigned char checksum[16]);
470 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
471 size_t blocks, const void *key,
472 size_t start_block_num,
473 unsigned char offset_i[16],
474 const unsigned char L_[][16],
475 unsigned char checksum[16]);
477 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
478 const unsigned char *iv, int enc)
480 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
486 * We set both the encrypt and decrypt key here because decrypt
487 * needs both. We could possibly optimise to remove setting the
488 * decrypt for an encryption operation.
490 aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
491 aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
492 if (!CRYPTO_ocb128_init(&octx->ocb,
493 &octx->ksenc.ks, &octx->ksdec.ks,
494 (block128_f) aesni_encrypt,
495 (block128_f) aesni_decrypt,
496 enc ? aesni_ocb_encrypt
497 : aesni_ocb_decrypt))
503 * If we have an iv we can set it directly, otherwise use saved IV.
505 if (iv == NULL && octx->iv_set)
508 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
515 /* If key set use IV, otherwise copy */
517 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
519 memcpy(octx->iv, iv, octx->ivlen);
525 # define aesni_ocb_cipher aes_ocb_cipher
526 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
527 const unsigned char *in, size_t len);
528 # endif /* OPENSSL_NO_OCB */
530 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
531 static const EVP_CIPHER aesni_##keylen##_##mode = { \
532 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
533 flags|EVP_CIPH_##MODE##_MODE, \
535 aesni_##mode##_cipher, \
537 sizeof(EVP_AES_KEY), \
538 NULL,NULL,NULL,NULL }; \
539 static const EVP_CIPHER aes_##keylen##_##mode = { \
540 nid##_##keylen##_##nmode,blocksize, \
542 flags|EVP_CIPH_##MODE##_MODE, \
544 aes_##mode##_cipher, \
546 sizeof(EVP_AES_KEY), \
547 NULL,NULL,NULL,NULL }; \
548 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
549 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
551 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
552 static const EVP_CIPHER aesni_##keylen##_##mode = { \
553 nid##_##keylen##_##mode,blocksize, \
554 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
555 flags|EVP_CIPH_##MODE##_MODE, \
556 aesni_##mode##_init_key, \
557 aesni_##mode##_cipher, \
558 aes_##mode##_cleanup, \
559 sizeof(EVP_AES_##MODE##_CTX), \
560 NULL,NULL,aes_##mode##_ctrl,NULL }; \
561 static const EVP_CIPHER aes_##keylen##_##mode = { \
562 nid##_##keylen##_##mode,blocksize, \
563 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
564 flags|EVP_CIPH_##MODE##_MODE, \
565 aes_##mode##_init_key, \
566 aes_##mode##_cipher, \
567 aes_##mode##_cleanup, \
568 sizeof(EVP_AES_##MODE##_CTX), \
569 NULL,NULL,aes_##mode##_ctrl,NULL }; \
570 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
571 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
573 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
575 # include "sparc_arch.h"
577 extern unsigned int OPENSSL_sparcv9cap_P[];
579 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
581 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
582 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
583 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
585 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
588 * Key-length specific subroutines were chosen for following reason.
589 * Each SPARC T4 core can execute up to 8 threads which share core's
590 * resources. Loading as much key material to registers allows to
591 * minimize references to shared memory interface, as well as amount
592 * of instructions in inner loops [much needed on T4]. But then having
593 * non-key-length specific routines would require conditional branches
594 * either in inner loops or on subroutines' entries. Former is hardly
595 * acceptable, while latter means code size increase to size occupied
596 * by multiple key-length specfic subroutines, so why fight?
598 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
599 size_t len, const AES_KEY *key,
600 unsigned char *ivec);
601 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
602 size_t len, const AES_KEY *key,
603 unsigned char *ivec);
604 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
605 size_t len, const AES_KEY *key,
606 unsigned char *ivec);
607 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
608 size_t len, const AES_KEY *key,
609 unsigned char *ivec);
610 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
611 size_t len, const AES_KEY *key,
612 unsigned char *ivec);
613 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
614 size_t len, const AES_KEY *key,
615 unsigned char *ivec);
616 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
617 size_t blocks, const AES_KEY *key,
618 unsigned char *ivec);
619 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
620 size_t blocks, const AES_KEY *key,
621 unsigned char *ivec);
622 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
623 size_t blocks, const AES_KEY *key,
624 unsigned char *ivec);
625 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
626 size_t blocks, const AES_KEY *key1,
627 const AES_KEY *key2, const unsigned char *ivec);
628 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
629 size_t blocks, const AES_KEY *key1,
630 const AES_KEY *key2, const unsigned char *ivec);
631 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
632 size_t blocks, const AES_KEY *key1,
633 const AES_KEY *key2, const unsigned char *ivec);
634 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
635 size_t blocks, const AES_KEY *key1,
636 const AES_KEY *key2, const unsigned char *ivec);
638 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
639 const unsigned char *iv, int enc)
642 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
644 mode = ctx->cipher->flags & EVP_CIPH_MODE;
645 bits = ctx->key_len * 8;
646 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
649 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
650 dat->block = (block128_f) aes_t4_decrypt;
653 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
654 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
657 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
658 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
661 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
662 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
669 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
670 dat->block = (block128_f) aes_t4_encrypt;
673 if (mode == EVP_CIPH_CBC_MODE)
674 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
675 else if (mode == EVP_CIPH_CTR_MODE)
676 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
678 dat->stream.cbc = NULL;
681 if (mode == EVP_CIPH_CBC_MODE)
682 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
683 else if (mode == EVP_CIPH_CTR_MODE)
684 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
686 dat->stream.cbc = NULL;
689 if (mode == EVP_CIPH_CBC_MODE)
690 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
691 else if (mode == EVP_CIPH_CTR_MODE)
692 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
694 dat->stream.cbc = NULL;
702 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
709 # define aes_t4_cbc_cipher aes_cbc_cipher
710 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
711 const unsigned char *in, size_t len);
713 # define aes_t4_ecb_cipher aes_ecb_cipher
714 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
715 const unsigned char *in, size_t len);
717 # define aes_t4_ofb_cipher aes_ofb_cipher
718 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
719 const unsigned char *in, size_t len);
721 # define aes_t4_cfb_cipher aes_cfb_cipher
722 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
723 const unsigned char *in, size_t len);
725 # define aes_t4_cfb8_cipher aes_cfb8_cipher
726 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
727 const unsigned char *in, size_t len);
729 # define aes_t4_cfb1_cipher aes_cfb1_cipher
730 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
731 const unsigned char *in, size_t len);
733 # define aes_t4_ctr_cipher aes_ctr_cipher
734 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
735 const unsigned char *in, size_t len);
737 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
738 const unsigned char *iv, int enc)
740 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
744 int bits = ctx->key_len * 8;
745 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
746 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
747 (block128_f) aes_t4_encrypt);
750 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
753 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
756 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
762 * If we have an iv can set it directly, otherwise use saved IV.
764 if (iv == NULL && gctx->iv_set)
767 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
772 /* If key set use IV, otherwise copy */
774 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
776 memcpy(gctx->iv, iv, gctx->ivlen);
783 # define aes_t4_gcm_cipher aes_gcm_cipher
784 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
785 const unsigned char *in, size_t len);
787 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
788 const unsigned char *iv, int enc)
790 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
795 int bits = ctx->key_len * 4;
797 /* key_len is two AES keys */
799 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
800 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
803 xctx->stream = aes128_t4_xts_encrypt;
806 xctx->stream = aes256_t4_xts_encrypt;
812 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
813 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
816 xctx->stream = aes128_t4_xts_decrypt;
819 xctx->stream = aes256_t4_xts_decrypt;
826 aes_t4_set_encrypt_key(key + ctx->key_len / 2,
827 ctx->key_len * 4, &xctx->ks2.ks);
828 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
830 xctx->xts.key1 = &xctx->ks1;
834 xctx->xts.key2 = &xctx->ks2;
835 memcpy(ctx->iv, iv, 16);
841 # define aes_t4_xts_cipher aes_xts_cipher
842 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
843 const unsigned char *in, size_t len);
845 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
846 const unsigned char *iv, int enc)
848 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
852 int bits = ctx->key_len * 8;
853 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
854 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
855 &cctx->ks, (block128_f) aes_t4_encrypt);
860 memcpy(ctx->iv, iv, 15 - cctx->L);
866 # define aes_t4_ccm_cipher aes_ccm_cipher
867 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
868 const unsigned char *in, size_t len);
870 # ifndef OPENSSL_NO_OCB
871 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
872 const unsigned char *iv, int enc)
874 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
880 * We set both the encrypt and decrypt key here because decrypt
881 * needs both. We could possibly optimise to remove setting the
882 * decrypt for an encryption operation.
884 aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
885 aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
886 if (!CRYPTO_ocb128_init(&octx->ocb,
887 &octx->ksenc.ks, &octx->ksdec.ks,
888 (block128_f) aes_t4_encrypt,
889 (block128_f) aes_t4_decrypt))
895 * If we have an iv we can set it directly, otherwise use saved IV.
897 if (iv == NULL && octx->iv_set)
900 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
907 /* If key set use IV, otherwise copy */
909 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
911 memcpy(octx->iv, iv, octx->ivlen);
917 # define aes_t4_ocb_cipher aes_ocb_cipher
918 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
919 const unsigned char *in, size_t len);
920 # endif /* OPENSSL_NO_OCB */
922 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
923 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
924 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
925 flags|EVP_CIPH_##MODE##_MODE, \
927 aes_t4_##mode##_cipher, \
929 sizeof(EVP_AES_KEY), \
930 NULL,NULL,NULL,NULL }; \
931 static const EVP_CIPHER aes_##keylen##_##mode = { \
932 nid##_##keylen##_##nmode,blocksize, \
934 flags|EVP_CIPH_##MODE##_MODE, \
936 aes_##mode##_cipher, \
938 sizeof(EVP_AES_KEY), \
939 NULL,NULL,NULL,NULL }; \
940 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
941 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
943 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
944 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
945 nid##_##keylen##_##mode,blocksize, \
946 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
947 flags|EVP_CIPH_##MODE##_MODE, \
948 aes_t4_##mode##_init_key, \
949 aes_t4_##mode##_cipher, \
950 aes_##mode##_cleanup, \
951 sizeof(EVP_AES_##MODE##_CTX), \
952 NULL,NULL,aes_##mode##_ctrl,NULL }; \
953 static const EVP_CIPHER aes_##keylen##_##mode = { \
954 nid##_##keylen##_##mode,blocksize, \
955 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
956 flags|EVP_CIPH_##MODE##_MODE, \
957 aes_##mode##_init_key, \
958 aes_##mode##_cipher, \
959 aes_##mode##_cleanup, \
960 sizeof(EVP_AES_##MODE##_CTX), \
961 NULL,NULL,aes_##mode##_ctrl,NULL }; \
962 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
963 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
967 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
968 static const EVP_CIPHER aes_##keylen##_##mode = { \
969 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
970 flags|EVP_CIPH_##MODE##_MODE, \
972 aes_##mode##_cipher, \
974 sizeof(EVP_AES_KEY), \
975 NULL,NULL,NULL,NULL }; \
976 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
977 { return &aes_##keylen##_##mode; }
979 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
980 static const EVP_CIPHER aes_##keylen##_##mode = { \
981 nid##_##keylen##_##mode,blocksize, \
982 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
983 flags|EVP_CIPH_##MODE##_MODE, \
984 aes_##mode##_init_key, \
985 aes_##mode##_cipher, \
986 aes_##mode##_cleanup, \
987 sizeof(EVP_AES_##MODE##_CTX), \
988 NULL,NULL,aes_##mode##_ctrl,NULL }; \
989 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
990 { return &aes_##keylen##_##mode; }
994 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
995 # include "arm_arch.h"
996 # if __ARM_MAX_ARCH__>=7
997 # if defined(BSAES_ASM)
998 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1000 # if defined(VPAES_ASM)
1001 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1003 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
1004 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
1005 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
1006 # define HWAES_encrypt aes_v8_encrypt
1007 # define HWAES_decrypt aes_v8_decrypt
1008 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
1009 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1013 # if defined(HWAES_CAPABLE)
1014 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1016 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1018 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1019 const AES_KEY *key);
1020 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1021 const AES_KEY *key);
1022 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1023 size_t length, const AES_KEY *key,
1024 unsigned char *ivec, const int enc);
1025 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1026 size_t len, const AES_KEY *key,
1027 const unsigned char ivec[16]);
1030 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1031 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1032 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1033 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1034 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1035 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1036 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1037 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1039 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1040 const unsigned char *iv, int enc)
1043 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1045 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1046 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1048 # ifdef HWAES_CAPABLE
1049 if (HWAES_CAPABLE) {
1050 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1051 dat->block = (block128_f) HWAES_decrypt;
1052 dat->stream.cbc = NULL;
1053 # ifdef HWAES_cbc_encrypt
1054 if (mode == EVP_CIPH_CBC_MODE)
1055 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1059 # ifdef BSAES_CAPABLE
1060 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1061 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1062 dat->block = (block128_f) AES_decrypt;
1063 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1066 # ifdef VPAES_CAPABLE
1067 if (VPAES_CAPABLE) {
1068 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1069 dat->block = (block128_f) vpaes_decrypt;
1070 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1071 (cbc128_f) vpaes_cbc_encrypt : NULL;
1075 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1076 dat->block = (block128_f) AES_decrypt;
1077 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1078 (cbc128_f) AES_cbc_encrypt : NULL;
1080 # ifdef HWAES_CAPABLE
1081 if (HWAES_CAPABLE) {
1082 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1083 dat->block = (block128_f) HWAES_encrypt;
1084 dat->stream.cbc = NULL;
1085 # ifdef HWAES_cbc_encrypt
1086 if (mode == EVP_CIPH_CBC_MODE)
1087 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1090 # ifdef HWAES_ctr32_encrypt_blocks
1091 if (mode == EVP_CIPH_CTR_MODE)
1092 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1095 (void)0; /* terminate potentially open 'else' */
1098 # ifdef BSAES_CAPABLE
1099 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1100 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1101 dat->block = (block128_f) AES_encrypt;
1102 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1105 # ifdef VPAES_CAPABLE
1106 if (VPAES_CAPABLE) {
1107 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1108 dat->block = (block128_f) vpaes_encrypt;
1109 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1110 (cbc128_f) vpaes_cbc_encrypt : NULL;
1114 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1115 dat->block = (block128_f) AES_encrypt;
1116 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1117 (cbc128_f) AES_cbc_encrypt : NULL;
1119 if (mode == EVP_CIPH_CTR_MODE)
1120 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1125 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1132 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1133 const unsigned char *in, size_t len)
1135 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1137 if (dat->stream.cbc)
1138 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1139 else if (ctx->encrypt)
1140 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1142 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1147 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1148 const unsigned char *in, size_t len)
1150 size_t bl = ctx->cipher->block_size;
1152 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1157 for (i = 0, len -= bl; i <= len; i += bl)
1158 (*dat->block) (in + i, out + i, &dat->ks);
1163 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1164 const unsigned char *in, size_t len)
1166 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1168 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1169 ctx->iv, &ctx->num, dat->block);
1173 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1174 const unsigned char *in, size_t len)
1176 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1178 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1179 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1183 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1184 const unsigned char *in, size_t len)
1186 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1188 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1189 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1193 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1194 const unsigned char *in, size_t len)
1196 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1198 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1199 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1200 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1204 while (len >= MAXBITCHUNK) {
1205 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1206 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1210 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1211 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1216 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1217 const unsigned char *in, size_t len)
1219 unsigned int num = ctx->num;
1220 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1222 if (dat->stream.ctr)
1223 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1224 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1226 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1227 ctx->iv, ctx->buf, &num, dat->block);
1228 ctx->num = (size_t)num;
1232 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1233 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1234 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1236 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1238 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1239 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1240 if (gctx->iv != c->iv)
1241 OPENSSL_free(gctx->iv);
1245 /* increment counter (64-bit int) by 1 */
1246 static void ctr64_inc(unsigned char *counter)
1261 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1263 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1268 gctx->ivlen = c->cipher->iv_len;
1272 gctx->tls_aad_len = -1;
1275 case EVP_CTRL_AEAD_SET_IVLEN:
1278 /* Allocate memory for IV if needed */
1279 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1280 if (gctx->iv != c->iv)
1281 OPENSSL_free(gctx->iv);
1282 gctx->iv = OPENSSL_malloc(arg);
1283 if (gctx->iv == NULL)
1289 case EVP_CTRL_AEAD_SET_TAG:
1290 if (arg <= 0 || arg > 16 || c->encrypt)
1292 memcpy(c->buf, ptr, arg);
1296 case EVP_CTRL_AEAD_GET_TAG:
1297 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1299 memcpy(ptr, c->buf, arg);
1302 case EVP_CTRL_GCM_SET_IV_FIXED:
1303 /* Special case: -1 length restores whole IV */
1305 memcpy(gctx->iv, ptr, gctx->ivlen);
1310 * Fixed field must be at least 4 bytes and invocation field at least
1313 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1316 memcpy(gctx->iv, ptr, arg);
1317 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1322 case EVP_CTRL_GCM_IV_GEN:
1323 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1325 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1326 if (arg <= 0 || arg > gctx->ivlen)
1328 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1330 * Invocation field will be at least 8 bytes in size and so no need
1331 * to check wrap around or increment more than last 8 bytes.
1333 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1337 case EVP_CTRL_GCM_SET_IV_INV:
1338 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1340 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1341 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1345 case EVP_CTRL_AEAD_TLS1_AAD:
1346 /* Save the AAD for later use */
1347 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1349 memcpy(c->buf, ptr, arg);
1350 gctx->tls_aad_len = arg;
1352 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1353 /* Correct length for explicit IV */
1354 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1355 /* If decrypting correct for tag too */
1357 len -= EVP_GCM_TLS_TAG_LEN;
1358 c->buf[arg - 2] = len >> 8;
1359 c->buf[arg - 1] = len & 0xff;
1361 /* Extra padding: tag appended to record */
1362 return EVP_GCM_TLS_TAG_LEN;
1366 EVP_CIPHER_CTX *out = ptr;
1367 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1368 if (gctx->gcm.key) {
1369 if (gctx->gcm.key != &gctx->ks)
1371 gctx_out->gcm.key = &gctx_out->ks;
1373 if (gctx->iv == c->iv)
1374 gctx_out->iv = out->iv;
1376 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1377 if (gctx_out->iv == NULL)
1379 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1390 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1391 const unsigned char *iv, int enc)
1393 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1398 # ifdef HWAES_CAPABLE
1399 if (HWAES_CAPABLE) {
1400 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1401 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1402 (block128_f) HWAES_encrypt);
1403 # ifdef HWAES_ctr32_encrypt_blocks
1404 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1411 # ifdef BSAES_CAPABLE
1412 if (BSAES_CAPABLE) {
1413 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1414 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1415 (block128_f) AES_encrypt);
1416 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1420 # ifdef VPAES_CAPABLE
1421 if (VPAES_CAPABLE) {
1422 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1423 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1424 (block128_f) vpaes_encrypt);
1429 (void)0; /* terminate potentially open 'else' */
1431 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1432 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1433 (block128_f) AES_encrypt);
1435 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1442 * If we have an iv can set it directly, otherwise use saved IV.
1444 if (iv == NULL && gctx->iv_set)
1447 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1452 /* If key set use IV, otherwise copy */
1454 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1456 memcpy(gctx->iv, iv, gctx->ivlen);
1464 * Handle TLS GCM packet format. This consists of the last portion of the IV
1465 * followed by the payload and finally the tag. On encrypt generate IV,
1466 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1470 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1471 const unsigned char *in, size_t len)
1473 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1475 /* Encrypt/decrypt must be performed in place */
1477 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1480 * Set IV from start of buffer or generate IV and write to start of
1483 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1484 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1485 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1488 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1490 /* Fix buffer and length to point to payload */
1491 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1492 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1493 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1495 /* Encrypt payload */
1498 # if defined(AES_GCM_ASM)
1499 if (len >= 32 && AES_GCM_ASM(gctx)) {
1500 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1503 bulk = AES_gcm_encrypt(in, out, len,
1505 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1506 gctx->gcm.len.u[1] += bulk;
1509 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1512 len - bulk, gctx->ctr))
1516 # if defined(AES_GCM_ASM2)
1517 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1518 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1521 bulk = AES_gcm_encrypt(in, out, len,
1523 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1524 gctx->gcm.len.u[1] += bulk;
1527 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1528 in + bulk, out + bulk, len - bulk))
1532 /* Finally write tag */
1533 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1534 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1539 # if defined(AES_GCM_ASM)
1540 if (len >= 16 && AES_GCM_ASM(gctx)) {
1541 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1544 bulk = AES_gcm_decrypt(in, out, len,
1546 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1547 gctx->gcm.len.u[1] += bulk;
1550 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1553 len - bulk, gctx->ctr))
1557 # if defined(AES_GCM_ASM2)
1558 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1559 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1562 bulk = AES_gcm_decrypt(in, out, len,
1564 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1565 gctx->gcm.len.u[1] += bulk;
1568 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1569 in + bulk, out + bulk, len - bulk))
1573 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1574 /* If tag mismatch wipe buffer */
1575 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1576 OPENSSL_cleanse(out, len);
1584 gctx->tls_aad_len = -1;
1588 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1589 const unsigned char *in, size_t len)
1591 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1592 /* If not set up, return error */
1596 if (gctx->tls_aad_len >= 0)
1597 return aes_gcm_tls_cipher(ctx, out, in, len);
1603 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1605 } else if (ctx->encrypt) {
1608 # if defined(AES_GCM_ASM)
1609 if (len >= 32 && AES_GCM_ASM(gctx)) {
1610 size_t res = (16 - gctx->gcm.mres) % 16;
1612 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1615 bulk = AES_gcm_encrypt(in + res,
1616 out + res, len - res,
1617 gctx->gcm.key, gctx->gcm.Yi.c,
1619 gctx->gcm.len.u[1] += bulk;
1623 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1626 len - bulk, gctx->ctr))
1630 # if defined(AES_GCM_ASM2)
1631 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1632 size_t res = (16 - gctx->gcm.mres) % 16;
1634 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1637 bulk = AES_gcm_encrypt(in + res,
1638 out + res, len - res,
1639 gctx->gcm.key, gctx->gcm.Yi.c,
1641 gctx->gcm.len.u[1] += bulk;
1645 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1646 in + bulk, out + bulk, len - bulk))
1652 # if defined(AES_GCM_ASM)
1653 if (len >= 16 && AES_GCM_ASM(gctx)) {
1654 size_t res = (16 - gctx->gcm.mres) % 16;
1656 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1659 bulk = AES_gcm_decrypt(in + res,
1660 out + res, len - res,
1662 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1663 gctx->gcm.len.u[1] += bulk;
1667 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1670 len - bulk, gctx->ctr))
1674 # if defined(AES_GCM_ASM2)
1675 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1676 size_t res = (16 - gctx->gcm.mres) % 16;
1678 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1681 bulk = AES_gcm_decrypt(in + res,
1682 out + res, len - res,
1684 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1685 gctx->gcm.len.u[1] += bulk;
1689 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1690 in + bulk, out + bulk, len - bulk))
1696 if (!ctx->encrypt) {
1697 if (gctx->taglen < 0)
1699 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1704 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1706 /* Don't reuse the IV */
1713 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1714 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1715 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1716 | EVP_CIPH_CUSTOM_COPY)
1718 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1719 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1720 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1721 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1722 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1723 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1725 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1727 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1728 if (type == EVP_CTRL_COPY) {
1729 EVP_CIPHER_CTX *out = ptr;
1730 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1731 if (xctx->xts.key1) {
1732 if (xctx->xts.key1 != &xctx->ks1)
1734 xctx_out->xts.key1 = &xctx_out->ks1;
1736 if (xctx->xts.key2) {
1737 if (xctx->xts.key2 != &xctx->ks2)
1739 xctx_out->xts.key2 = &xctx_out->ks2;
1742 } else if (type != EVP_CTRL_INIT)
1744 /* key1 and key2 are used as an indicator both key and IV are set */
1745 xctx->xts.key1 = NULL;
1746 xctx->xts.key2 = NULL;
1750 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1751 const unsigned char *iv, int enc)
1753 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1760 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1762 xctx->stream = NULL;
1764 /* key_len is two AES keys */
1765 # ifdef HWAES_CAPABLE
1766 if (HWAES_CAPABLE) {
1768 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1770 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1772 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1774 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1777 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1778 ctx->key_len * 4, &xctx->ks2.ks);
1779 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1781 xctx->xts.key1 = &xctx->ks1;
1785 # ifdef BSAES_CAPABLE
1787 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1790 # ifdef VPAES_CAPABLE
1791 if (VPAES_CAPABLE) {
1793 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1795 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1797 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1799 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1802 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1803 ctx->key_len * 4, &xctx->ks2.ks);
1804 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1806 xctx->xts.key1 = &xctx->ks1;
1810 (void)0; /* terminate potentially open 'else' */
1813 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1814 xctx->xts.block1 = (block128_f) AES_encrypt;
1816 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1817 xctx->xts.block1 = (block128_f) AES_decrypt;
1820 AES_set_encrypt_key(key + ctx->key_len / 2,
1821 ctx->key_len * 4, &xctx->ks2.ks);
1822 xctx->xts.block2 = (block128_f) AES_encrypt;
1824 xctx->xts.key1 = &xctx->ks1;
1828 xctx->xts.key2 = &xctx->ks2;
1829 memcpy(ctx->iv, iv, 16);
1835 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1836 const unsigned char *in, size_t len)
1838 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1839 if (!xctx->xts.key1 || !xctx->xts.key2)
1841 if (!out || !in || len < AES_BLOCK_SIZE)
1844 (*xctx->stream) (in, out, len,
1845 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1846 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1852 # define aes_xts_cleanup NULL
1854 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1855 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1856 | EVP_CIPH_CUSTOM_COPY)
1858 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1859 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1861 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1863 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1872 cctx->tls_aad_len = -1;
1875 case EVP_CTRL_AEAD_TLS1_AAD:
1876 /* Save the AAD for later use */
1877 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1879 memcpy(c->buf, ptr, arg);
1880 cctx->tls_aad_len = arg;
1882 uint16_t len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1883 /* Correct length for explicit IV */
1884 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1885 /* If decrypting correct for tag too */
1888 c->buf[arg - 2] = len >> 8;
1889 c->buf[arg - 1] = len & 0xff;
1891 /* Extra padding: tag appended to record */
1894 case EVP_CTRL_CCM_SET_IV_FIXED:
1895 /* Sanity check length */
1896 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1898 /* Just copy to first part of IV */
1899 memcpy(c->iv, ptr, arg);
1902 case EVP_CTRL_AEAD_SET_IVLEN:
1904 case EVP_CTRL_CCM_SET_L:
1905 if (arg < 2 || arg > 8)
1910 case EVP_CTRL_AEAD_SET_TAG:
1911 if ((arg & 1) || arg < 4 || arg > 16)
1913 if (c->encrypt && ptr)
1917 memcpy(c->buf, ptr, arg);
1922 case EVP_CTRL_AEAD_GET_TAG:
1923 if (!c->encrypt || !cctx->tag_set)
1925 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1934 EVP_CIPHER_CTX *out = ptr;
1935 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1936 if (cctx->ccm.key) {
1937 if (cctx->ccm.key != &cctx->ks)
1939 cctx_out->ccm.key = &cctx_out->ks;
1950 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1951 const unsigned char *iv, int enc)
1953 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1958 # ifdef HWAES_CAPABLE
1959 if (HWAES_CAPABLE) {
1960 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1962 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1963 &cctx->ks, (block128_f) HWAES_encrypt);
1969 # ifdef VPAES_CAPABLE
1970 if (VPAES_CAPABLE) {
1971 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1972 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1973 &cctx->ks, (block128_f) vpaes_encrypt);
1979 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1980 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1981 &cctx->ks, (block128_f) AES_encrypt);
1986 memcpy(ctx->iv, iv, 15 - cctx->L);
1992 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1993 const unsigned char *in, size_t len)
1995 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1996 CCM128_CONTEXT *ccm = &cctx->ccm;
1997 /* Encrypt/decrypt must be performed in place */
1998 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2000 /* If encrypting set explicit IV from sequence number (start of AAD) */
2002 memcpy(out, ctx->buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2003 /* Get rest of IV from explicit IV */
2004 memcpy(ctx->iv + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2005 /* Correct length value */
2006 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2007 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2010 CRYPTO_ccm128_aad(ccm, ctx->buf, cctx->tls_aad_len);
2011 /* Fix buffer to point to payload */
2012 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2013 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2015 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2017 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2019 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2021 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2023 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2025 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2026 unsigned char tag[16];
2027 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2028 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2032 OPENSSL_cleanse(out, len);
2037 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2038 const unsigned char *in, size_t len)
2040 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
2041 CCM128_CONTEXT *ccm = &cctx->ccm;
2042 /* If not set up, return error */
2046 if (cctx->tls_aad_len >= 0)
2047 return aes_ccm_tls_cipher(ctx, out, in, len);
2052 if (!ctx->encrypt && !cctx->tag_set)
2056 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2061 /* If have AAD need message length */
2062 if (!cctx->len_set && len)
2064 CRYPTO_ccm128_aad(ccm, in, len);
2067 /* EVP_*Final() doesn't return any data */
2070 /* If not set length yet do it */
2071 if (!cctx->len_set) {
2072 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2077 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2079 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2085 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2087 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2088 unsigned char tag[16];
2089 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2090 if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
2095 OPENSSL_cleanse(out, len);
2104 # define aes_ccm_cleanup NULL
2106 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2107 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2108 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2109 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2110 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2111 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2118 /* Indicates if IV has been set */
2122 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2123 const unsigned char *iv, int enc)
2125 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2130 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2132 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2137 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2143 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2144 const unsigned char *in, size_t inlen)
2146 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2148 /* AES wrap with padding has IV length of 4, without padding 8 */
2149 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2150 /* No final operation so always return zero length */
2153 /* Input length must always be non-zero */
2156 /* If decrypting need at least 16 bytes and multiple of 8 */
2157 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2159 /* If not padding input must be multiple of 8 */
2160 if (!pad && inlen & 0x7)
2164 /* If padding round up to multiple of 8 */
2166 inlen = (inlen + 7) / 8 * 8;
2171 * If not padding output will be exactly 8 bytes smaller than
2172 * input. If padding it will be at least 8 bytes smaller but we
2173 * don't know how much.
2180 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2182 (block128_f) AES_encrypt);
2184 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2186 (block128_f) AES_decrypt);
2189 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2190 out, in, inlen, (block128_f) AES_encrypt);
2192 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2193 out, in, inlen, (block128_f) AES_decrypt);
2195 return rv ? (int)rv : -1;
2198 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2199 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2200 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2202 static const EVP_CIPHER aes_128_wrap = {
2204 8, 16, 8, WRAP_FLAGS,
2205 aes_wrap_init_key, aes_wrap_cipher,
2207 sizeof(EVP_AES_WRAP_CTX),
2208 NULL, NULL, NULL, NULL
2211 const EVP_CIPHER *EVP_aes_128_wrap(void)
2213 return &aes_128_wrap;
2216 static const EVP_CIPHER aes_192_wrap = {
2218 8, 24, 8, WRAP_FLAGS,
2219 aes_wrap_init_key, aes_wrap_cipher,
2221 sizeof(EVP_AES_WRAP_CTX),
2222 NULL, NULL, NULL, NULL
2225 const EVP_CIPHER *EVP_aes_192_wrap(void)
2227 return &aes_192_wrap;
2230 static const EVP_CIPHER aes_256_wrap = {
2232 8, 32, 8, WRAP_FLAGS,
2233 aes_wrap_init_key, aes_wrap_cipher,
2235 sizeof(EVP_AES_WRAP_CTX),
2236 NULL, NULL, NULL, NULL
2239 const EVP_CIPHER *EVP_aes_256_wrap(void)
2241 return &aes_256_wrap;
2244 static const EVP_CIPHER aes_128_wrap_pad = {
2245 NID_id_aes128_wrap_pad,
2246 8, 16, 4, WRAP_FLAGS,
2247 aes_wrap_init_key, aes_wrap_cipher,
2249 sizeof(EVP_AES_WRAP_CTX),
2250 NULL, NULL, NULL, NULL
2253 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2255 return &aes_128_wrap_pad;
2258 static const EVP_CIPHER aes_192_wrap_pad = {
2259 NID_id_aes192_wrap_pad,
2260 8, 24, 4, WRAP_FLAGS,
2261 aes_wrap_init_key, aes_wrap_cipher,
2263 sizeof(EVP_AES_WRAP_CTX),
2264 NULL, NULL, NULL, NULL
2267 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2269 return &aes_192_wrap_pad;
2272 static const EVP_CIPHER aes_256_wrap_pad = {
2273 NID_id_aes256_wrap_pad,
2274 8, 32, 4, WRAP_FLAGS,
2275 aes_wrap_init_key, aes_wrap_cipher,
2277 sizeof(EVP_AES_WRAP_CTX),
2278 NULL, NULL, NULL, NULL
2281 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2283 return &aes_256_wrap_pad;
2286 # ifndef OPENSSL_NO_OCB
2287 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2289 EVP_AES_OCB_CTX *octx = c->cipher_data;
2290 EVP_CIPHER_CTX *newc;
2291 EVP_AES_OCB_CTX *new_octx;
2297 octx->ivlen = c->cipher->iv_len;
2300 octx->data_buf_len = 0;
2301 octx->aad_buf_len = 0;
2304 case EVP_CTRL_AEAD_SET_IVLEN:
2305 /* IV len must be 1 to 15 */
2306 if (arg <= 0 || arg > 15)
2312 case EVP_CTRL_AEAD_SET_TAG:
2314 /* Tag len must be 0 to 16 */
2315 if (arg < 0 || arg > 16)
2321 if (arg != octx->taglen || c->encrypt)
2323 memcpy(octx->tag, ptr, arg);
2326 case EVP_CTRL_AEAD_GET_TAG:
2327 if (arg != octx->taglen || !c->encrypt)
2330 memcpy(ptr, octx->tag, arg);
2334 newc = (EVP_CIPHER_CTX *)ptr;
2335 new_octx = newc->cipher_data;
2336 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2337 &new_octx->ksenc.ks,
2338 &new_octx->ksdec.ks);
2346 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2347 const unsigned char *iv, int enc)
2349 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2355 * We set both the encrypt and decrypt key here because decrypt
2356 * needs both. We could possibly optimise to remove setting the
2357 * decrypt for an encryption operation.
2359 # ifdef VPAES_CAPABLE
2360 if (VPAES_CAPABLE) {
2361 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2362 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2363 if (!CRYPTO_ocb128_init(&octx->ocb,
2364 &octx->ksenc.ks, &octx->ksdec.ks,
2365 (block128_f) vpaes_encrypt,
2366 (block128_f) vpaes_decrypt,
2372 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2373 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2374 if (!CRYPTO_ocb128_init(&octx->ocb,
2375 &octx->ksenc.ks, &octx->ksdec.ks,
2376 (block128_f) AES_encrypt,
2377 (block128_f) AES_decrypt,
2384 * If we have an iv we can set it directly, otherwise use saved IV.
2386 if (iv == NULL && octx->iv_set)
2389 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2396 /* If key set use IV, otherwise copy */
2398 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2400 memcpy(octx->iv, iv, octx->ivlen);
2406 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2407 const unsigned char *in, size_t len)
2411 int written_len = 0;
2412 size_t trailing_len;
2413 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2415 /* If IV or Key not set then return error */
2424 * Need to ensure we are only passing full blocks to low level OCB
2425 * routines. We do it here rather than in EVP_EncryptUpdate/
2426 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2427 * and those routines don't support that
2430 /* Are we dealing with AAD or normal data here? */
2432 buf = octx->aad_buf;
2433 buf_len = &(octx->aad_buf_len);
2435 buf = octx->data_buf;
2436 buf_len = &(octx->data_buf_len);
2440 * If we've got a partially filled buffer from a previous call then
2441 * use that data first
2444 unsigned int remaining;
2446 remaining = 16 - (*buf_len);
2447 if (remaining > len) {
2448 memcpy(buf + (*buf_len), in, len);
2452 memcpy(buf + (*buf_len), in, remaining);
2455 * If we get here we've filled the buffer, so process it
2460 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2462 } else if (ctx->encrypt) {
2463 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2466 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2473 /* Do we have a partial block to handle at the end? */
2474 trailing_len = len % 16;
2477 * If we've got some full blocks to handle, then process these first
2479 if (len != trailing_len) {
2481 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2483 } else if (ctx->encrypt) {
2484 if (!CRYPTO_ocb128_encrypt
2485 (&octx->ocb, in, out, len - trailing_len))
2488 if (!CRYPTO_ocb128_decrypt
2489 (&octx->ocb, in, out, len - trailing_len))
2492 written_len += len - trailing_len;
2493 in += len - trailing_len;
2496 /* Handle any trailing partial block */
2498 memcpy(buf, in, trailing_len);
2499 *buf_len = trailing_len;
2505 * First of all empty the buffer of any partial block that we might
2506 * have been provided - both for data and AAD
2508 if (octx->data_buf_len) {
2510 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2511 octx->data_buf_len))
2514 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2515 octx->data_buf_len))
2518 written_len = octx->data_buf_len;
2519 octx->data_buf_len = 0;
2521 if (octx->aad_buf_len) {
2522 if (!CRYPTO_ocb128_aad
2523 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2525 octx->aad_buf_len = 0;
2527 /* If decrypting then verify */
2528 if (!ctx->encrypt) {
2529 if (octx->taglen < 0)
2531 if (CRYPTO_ocb128_finish(&octx->ocb,
2532 octx->tag, octx->taglen) != 0)
2537 /* If encrypting then just get the tag */
2538 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2540 /* Don't reuse the IV */
2546 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2548 EVP_AES_OCB_CTX *octx = c->cipher_data;
2549 CRYPTO_ocb128_cleanup(&octx->ocb);
2553 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2554 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2555 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2556 # endif /* OPENSSL_NO_OCB */