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/)"
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
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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/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,
896 * If we have an iv we can set it directly, otherwise use saved IV.
898 if (iv == NULL && octx->iv_set)
901 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
908 /* If key set use IV, otherwise copy */
910 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
912 memcpy(octx->iv, iv, octx->ivlen);
918 # define aes_t4_ocb_cipher aes_ocb_cipher
919 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
920 const unsigned char *in, size_t len);
921 # endif /* OPENSSL_NO_OCB */
923 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
924 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
925 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
926 flags|EVP_CIPH_##MODE##_MODE, \
928 aes_t4_##mode##_cipher, \
930 sizeof(EVP_AES_KEY), \
931 NULL,NULL,NULL,NULL }; \
932 static const EVP_CIPHER aes_##keylen##_##mode = { \
933 nid##_##keylen##_##nmode,blocksize, \
935 flags|EVP_CIPH_##MODE##_MODE, \
937 aes_##mode##_cipher, \
939 sizeof(EVP_AES_KEY), \
940 NULL,NULL,NULL,NULL }; \
941 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
942 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
944 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
945 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
946 nid##_##keylen##_##mode,blocksize, \
947 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
948 flags|EVP_CIPH_##MODE##_MODE, \
949 aes_t4_##mode##_init_key, \
950 aes_t4_##mode##_cipher, \
951 aes_##mode##_cleanup, \
952 sizeof(EVP_AES_##MODE##_CTX), \
953 NULL,NULL,aes_##mode##_ctrl,NULL }; \
954 static const EVP_CIPHER aes_##keylen##_##mode = { \
955 nid##_##keylen##_##mode,blocksize, \
956 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
957 flags|EVP_CIPH_##MODE##_MODE, \
958 aes_##mode##_init_key, \
959 aes_##mode##_cipher, \
960 aes_##mode##_cleanup, \
961 sizeof(EVP_AES_##MODE##_CTX), \
962 NULL,NULL,aes_##mode##_ctrl,NULL }; \
963 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
964 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
968 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
969 static const EVP_CIPHER aes_##keylen##_##mode = { \
970 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
971 flags|EVP_CIPH_##MODE##_MODE, \
973 aes_##mode##_cipher, \
975 sizeof(EVP_AES_KEY), \
976 NULL,NULL,NULL,NULL }; \
977 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
978 { return &aes_##keylen##_##mode; }
980 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
981 static const EVP_CIPHER aes_##keylen##_##mode = { \
982 nid##_##keylen##_##mode,blocksize, \
983 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
984 flags|EVP_CIPH_##MODE##_MODE, \
985 aes_##mode##_init_key, \
986 aes_##mode##_cipher, \
987 aes_##mode##_cleanup, \
988 sizeof(EVP_AES_##MODE##_CTX), \
989 NULL,NULL,aes_##mode##_ctrl,NULL }; \
990 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
991 { return &aes_##keylen##_##mode; }
995 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
996 # include "arm_arch.h"
997 # if __ARM_MAX_ARCH__>=7
998 # if defined(BSAES_ASM)
999 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1001 # if defined(VPAES_ASM)
1002 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1004 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
1005 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
1006 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
1007 # define HWAES_encrypt aes_v8_encrypt
1008 # define HWAES_decrypt aes_v8_decrypt
1009 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
1010 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1014 # if defined(HWAES_CAPABLE)
1015 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1017 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1019 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1020 const AES_KEY *key);
1021 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1022 const AES_KEY *key);
1023 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1024 size_t length, const AES_KEY *key,
1025 unsigned char *ivec, const int enc);
1026 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1027 size_t len, const AES_KEY *key,
1028 const unsigned char ivec[16]);
1031 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1032 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1033 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1034 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1035 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1036 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1037 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1038 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1040 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1041 const unsigned char *iv, int enc)
1044 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1046 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1047 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1049 # ifdef HWAES_CAPABLE
1050 if (HWAES_CAPABLE) {
1051 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1052 dat->block = (block128_f) HWAES_decrypt;
1053 dat->stream.cbc = NULL;
1054 # ifdef HWAES_cbc_encrypt
1055 if (mode == EVP_CIPH_CBC_MODE)
1056 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1060 # ifdef BSAES_CAPABLE
1061 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1062 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1063 dat->block = (block128_f) AES_decrypt;
1064 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1067 # ifdef VPAES_CAPABLE
1068 if (VPAES_CAPABLE) {
1069 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1070 dat->block = (block128_f) vpaes_decrypt;
1071 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1072 (cbc128_f) vpaes_cbc_encrypt : NULL;
1076 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1077 dat->block = (block128_f) AES_decrypt;
1078 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1079 (cbc128_f) AES_cbc_encrypt : NULL;
1081 # ifdef HWAES_CAPABLE
1082 if (HWAES_CAPABLE) {
1083 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1084 dat->block = (block128_f) HWAES_encrypt;
1085 dat->stream.cbc = NULL;
1086 # ifdef HWAES_cbc_encrypt
1087 if (mode == EVP_CIPH_CBC_MODE)
1088 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1091 # ifdef HWAES_ctr32_encrypt_blocks
1092 if (mode == EVP_CIPH_CTR_MODE)
1093 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1096 (void)0; /* terminate potentially open 'else' */
1099 # ifdef BSAES_CAPABLE
1100 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1101 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1102 dat->block = (block128_f) AES_encrypt;
1103 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1106 # ifdef VPAES_CAPABLE
1107 if (VPAES_CAPABLE) {
1108 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1109 dat->block = (block128_f) vpaes_encrypt;
1110 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1111 (cbc128_f) vpaes_cbc_encrypt : NULL;
1115 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1116 dat->block = (block128_f) AES_encrypt;
1117 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1118 (cbc128_f) AES_cbc_encrypt : NULL;
1120 if (mode == EVP_CIPH_CTR_MODE)
1121 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1126 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1133 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1134 const unsigned char *in, size_t len)
1136 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1138 if (dat->stream.cbc)
1139 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1140 else if (ctx->encrypt)
1141 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1143 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1148 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1149 const unsigned char *in, size_t len)
1151 size_t bl = ctx->cipher->block_size;
1153 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1158 for (i = 0, len -= bl; i <= len; i += bl)
1159 (*dat->block) (in + i, out + i, &dat->ks);
1164 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1165 const unsigned char *in, size_t len)
1167 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1169 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1170 ctx->iv, &ctx->num, dat->block);
1174 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1175 const unsigned char *in, size_t len)
1177 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1179 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1180 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1184 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1185 const unsigned char *in, size_t len)
1187 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1189 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1190 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1194 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1195 const unsigned char *in, size_t len)
1197 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1199 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1200 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1201 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1205 while (len >= MAXBITCHUNK) {
1206 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1207 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1211 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1212 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1217 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1218 const unsigned char *in, size_t len)
1220 unsigned int num = ctx->num;
1221 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1223 if (dat->stream.ctr)
1224 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1225 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1227 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1228 ctx->iv, ctx->buf, &num, dat->block);
1229 ctx->num = (size_t)num;
1233 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1234 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1235 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1237 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1239 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1240 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1241 if (gctx->iv != c->iv)
1242 OPENSSL_free(gctx->iv);
1246 /* increment counter (64-bit int) by 1 */
1247 static void ctr64_inc(unsigned char *counter)
1262 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1264 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1269 gctx->ivlen = c->cipher->iv_len;
1273 gctx->tls_aad_len = -1;
1276 case EVP_CTRL_AEAD_SET_IVLEN:
1279 /* Allocate memory for IV if needed */
1280 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1281 if (gctx->iv != c->iv)
1282 OPENSSL_free(gctx->iv);
1283 gctx->iv = OPENSSL_malloc(arg);
1284 if (gctx->iv == NULL)
1290 case EVP_CTRL_AEAD_SET_TAG:
1291 if (arg <= 0 || arg > 16 || c->encrypt)
1293 memcpy(c->buf, ptr, arg);
1297 case EVP_CTRL_AEAD_GET_TAG:
1298 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1300 memcpy(ptr, c->buf, arg);
1303 case EVP_CTRL_GCM_SET_IV_FIXED:
1304 /* Special case: -1 length restores whole IV */
1306 memcpy(gctx->iv, ptr, gctx->ivlen);
1311 * Fixed field must be at least 4 bytes and invocation field at least
1314 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1317 memcpy(gctx->iv, ptr, arg);
1318 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1323 case EVP_CTRL_GCM_IV_GEN:
1324 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1326 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1327 if (arg <= 0 || arg > gctx->ivlen)
1329 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1331 * Invocation field will be at least 8 bytes in size and so no need
1332 * to check wrap around or increment more than last 8 bytes.
1334 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1338 case EVP_CTRL_GCM_SET_IV_INV:
1339 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1341 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1342 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1346 case EVP_CTRL_AEAD_TLS1_AAD:
1347 /* Save the AAD for later use */
1348 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1350 memcpy(c->buf, ptr, arg);
1351 gctx->tls_aad_len = arg;
1353 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1354 /* Correct length for explicit IV */
1355 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1356 /* If decrypting correct for tag too */
1358 len -= EVP_GCM_TLS_TAG_LEN;
1359 c->buf[arg - 2] = len >> 8;
1360 c->buf[arg - 1] = len & 0xff;
1362 /* Extra padding: tag appended to record */
1363 return EVP_GCM_TLS_TAG_LEN;
1367 EVP_CIPHER_CTX *out = ptr;
1368 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1369 if (gctx->gcm.key) {
1370 if (gctx->gcm.key != &gctx->ks)
1372 gctx_out->gcm.key = &gctx_out->ks;
1374 if (gctx->iv == c->iv)
1375 gctx_out->iv = out->iv;
1377 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1378 if (gctx_out->iv == NULL)
1380 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1391 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1392 const unsigned char *iv, int enc)
1394 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1399 # ifdef HWAES_CAPABLE
1400 if (HWAES_CAPABLE) {
1401 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1402 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1403 (block128_f) HWAES_encrypt);
1404 # ifdef HWAES_ctr32_encrypt_blocks
1405 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1412 # ifdef BSAES_CAPABLE
1413 if (BSAES_CAPABLE) {
1414 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1415 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1416 (block128_f) AES_encrypt);
1417 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1421 # ifdef VPAES_CAPABLE
1422 if (VPAES_CAPABLE) {
1423 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1424 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1425 (block128_f) vpaes_encrypt);
1430 (void)0; /* terminate potentially open 'else' */
1432 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1433 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1434 (block128_f) AES_encrypt);
1436 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1443 * If we have an iv can set it directly, otherwise use saved IV.
1445 if (iv == NULL && gctx->iv_set)
1448 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1453 /* If key set use IV, otherwise copy */
1455 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1457 memcpy(gctx->iv, iv, gctx->ivlen);
1465 * Handle TLS GCM packet format. This consists of the last portion of the IV
1466 * followed by the payload and finally the tag. On encrypt generate IV,
1467 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1471 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1472 const unsigned char *in, size_t len)
1474 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1476 /* Encrypt/decrypt must be performed in place */
1478 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1481 * Set IV from start of buffer or generate IV and write to start of
1484 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1485 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1486 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1489 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1491 /* Fix buffer and length to point to payload */
1492 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1493 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1494 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1496 /* Encrypt payload */
1499 # if defined(AES_GCM_ASM)
1500 if (len >= 32 && AES_GCM_ASM(gctx)) {
1501 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1504 bulk = AES_gcm_encrypt(in, out, len,
1506 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1507 gctx->gcm.len.u[1] += bulk;
1510 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1513 len - bulk, gctx->ctr))
1517 # if defined(AES_GCM_ASM2)
1518 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1519 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1522 bulk = AES_gcm_encrypt(in, out, len,
1524 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1525 gctx->gcm.len.u[1] += bulk;
1528 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1529 in + bulk, out + bulk, len - bulk))
1533 /* Finally write tag */
1534 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1535 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1540 # if defined(AES_GCM_ASM)
1541 if (len >= 16 && AES_GCM_ASM(gctx)) {
1542 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1545 bulk = AES_gcm_decrypt(in, out, len,
1547 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1548 gctx->gcm.len.u[1] += bulk;
1551 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1554 len - bulk, gctx->ctr))
1558 # if defined(AES_GCM_ASM2)
1559 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1560 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1563 bulk = AES_gcm_decrypt(in, out, len,
1565 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1566 gctx->gcm.len.u[1] += bulk;
1569 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1570 in + bulk, out + bulk, len - bulk))
1574 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1575 /* If tag mismatch wipe buffer */
1576 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1577 OPENSSL_cleanse(out, len);
1585 gctx->tls_aad_len = -1;
1589 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1590 const unsigned char *in, size_t len)
1592 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1593 /* If not set up, return error */
1597 if (gctx->tls_aad_len >= 0)
1598 return aes_gcm_tls_cipher(ctx, out, in, len);
1604 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1606 } else if (ctx->encrypt) {
1609 # if defined(AES_GCM_ASM)
1610 if (len >= 32 && AES_GCM_ASM(gctx)) {
1611 size_t res = (16 - gctx->gcm.mres) % 16;
1613 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1616 bulk = AES_gcm_encrypt(in + res,
1617 out + res, len - res,
1618 gctx->gcm.key, gctx->gcm.Yi.c,
1620 gctx->gcm.len.u[1] += bulk;
1624 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1627 len - bulk, gctx->ctr))
1631 # if defined(AES_GCM_ASM2)
1632 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1633 size_t res = (16 - gctx->gcm.mres) % 16;
1635 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1638 bulk = AES_gcm_encrypt(in + res,
1639 out + res, len - res,
1640 gctx->gcm.key, gctx->gcm.Yi.c,
1642 gctx->gcm.len.u[1] += bulk;
1646 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1647 in + bulk, out + bulk, len - bulk))
1653 # if defined(AES_GCM_ASM)
1654 if (len >= 16 && AES_GCM_ASM(gctx)) {
1655 size_t res = (16 - gctx->gcm.mres) % 16;
1657 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1660 bulk = AES_gcm_decrypt(in + res,
1661 out + res, len - res,
1663 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1664 gctx->gcm.len.u[1] += bulk;
1668 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1671 len - bulk, gctx->ctr))
1675 # if defined(AES_GCM_ASM2)
1676 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1677 size_t res = (16 - gctx->gcm.mres) % 16;
1679 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1682 bulk = AES_gcm_decrypt(in + res,
1683 out + res, len - res,
1685 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1686 gctx->gcm.len.u[1] += bulk;
1690 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1691 in + bulk, out + bulk, len - bulk))
1697 if (!ctx->encrypt) {
1698 if (gctx->taglen < 0)
1700 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1705 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1707 /* Don't reuse the IV */
1714 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1715 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1716 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1717 | EVP_CIPH_CUSTOM_COPY)
1719 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1720 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1721 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1722 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1723 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1724 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1726 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1728 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1729 if (type == EVP_CTRL_COPY) {
1730 EVP_CIPHER_CTX *out = ptr;
1731 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1732 if (xctx->xts.key1) {
1733 if (xctx->xts.key1 != &xctx->ks1)
1735 xctx_out->xts.key1 = &xctx_out->ks1;
1737 if (xctx->xts.key2) {
1738 if (xctx->xts.key2 != &xctx->ks2)
1740 xctx_out->xts.key2 = &xctx_out->ks2;
1743 } else if (type != EVP_CTRL_INIT)
1745 /* key1 and key2 are used as an indicator both key and IV are set */
1746 xctx->xts.key1 = NULL;
1747 xctx->xts.key2 = NULL;
1751 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1752 const unsigned char *iv, int enc)
1754 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1761 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1763 xctx->stream = NULL;
1765 /* key_len is two AES keys */
1766 # ifdef HWAES_CAPABLE
1767 if (HWAES_CAPABLE) {
1769 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1771 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1773 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1775 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1778 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1779 ctx->key_len * 4, &xctx->ks2.ks);
1780 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1782 xctx->xts.key1 = &xctx->ks1;
1786 # ifdef BSAES_CAPABLE
1788 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1791 # ifdef VPAES_CAPABLE
1792 if (VPAES_CAPABLE) {
1794 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1796 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1798 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1800 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1803 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1804 ctx->key_len * 4, &xctx->ks2.ks);
1805 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1807 xctx->xts.key1 = &xctx->ks1;
1811 (void)0; /* terminate potentially open 'else' */
1814 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1815 xctx->xts.block1 = (block128_f) AES_encrypt;
1817 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1818 xctx->xts.block1 = (block128_f) AES_decrypt;
1821 AES_set_encrypt_key(key + ctx->key_len / 2,
1822 ctx->key_len * 4, &xctx->ks2.ks);
1823 xctx->xts.block2 = (block128_f) AES_encrypt;
1825 xctx->xts.key1 = &xctx->ks1;
1829 xctx->xts.key2 = &xctx->ks2;
1830 memcpy(ctx->iv, iv, 16);
1836 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1837 const unsigned char *in, size_t len)
1839 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1840 if (!xctx->xts.key1 || !xctx->xts.key2)
1842 if (!out || !in || len < AES_BLOCK_SIZE)
1845 (*xctx->stream) (in, out, len,
1846 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1847 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1853 # define aes_xts_cleanup NULL
1855 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1856 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1857 | EVP_CIPH_CUSTOM_COPY)
1859 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1860 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1862 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1864 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1873 cctx->tls_aad_len = -1;
1876 case EVP_CTRL_AEAD_TLS1_AAD:
1877 /* Save the AAD for later use */
1878 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1880 memcpy(c->buf, ptr, arg);
1881 cctx->tls_aad_len = arg;
1883 uint16_t len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1884 /* Correct length for explicit IV */
1885 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1886 /* If decrypting correct for tag too */
1889 c->buf[arg - 2] = len >> 8;
1890 c->buf[arg - 1] = len & 0xff;
1892 /* Extra padding: tag appended to record */
1895 case EVP_CTRL_CCM_SET_IV_FIXED:
1896 /* Sanity check length */
1897 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1899 /* Just copy to first part of IV */
1900 memcpy(c->iv, ptr, arg);
1903 case EVP_CTRL_AEAD_SET_IVLEN:
1905 case EVP_CTRL_CCM_SET_L:
1906 if (arg < 2 || arg > 8)
1911 case EVP_CTRL_AEAD_SET_TAG:
1912 if ((arg & 1) || arg < 4 || arg > 16)
1914 if (c->encrypt && ptr)
1918 memcpy(c->buf, ptr, arg);
1923 case EVP_CTRL_AEAD_GET_TAG:
1924 if (!c->encrypt || !cctx->tag_set)
1926 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1935 EVP_CIPHER_CTX *out = ptr;
1936 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1937 if (cctx->ccm.key) {
1938 if (cctx->ccm.key != &cctx->ks)
1940 cctx_out->ccm.key = &cctx_out->ks;
1951 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1952 const unsigned char *iv, int enc)
1954 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1959 # ifdef HWAES_CAPABLE
1960 if (HWAES_CAPABLE) {
1961 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1963 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1964 &cctx->ks, (block128_f) HWAES_encrypt);
1970 # ifdef VPAES_CAPABLE
1971 if (VPAES_CAPABLE) {
1972 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1973 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1974 &cctx->ks, (block128_f) vpaes_encrypt);
1980 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1981 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1982 &cctx->ks, (block128_f) AES_encrypt);
1987 memcpy(ctx->iv, iv, 15 - cctx->L);
1993 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1994 const unsigned char *in, size_t len)
1996 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1997 CCM128_CONTEXT *ccm = &cctx->ccm;
1998 /* Encrypt/decrypt must be performed in place */
1999 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2001 /* If encrypting set explicit IV from sequence number (start of AAD) */
2003 memcpy(out, ctx->buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2004 /* Get rest of IV from explicit IV */
2005 memcpy(ctx->iv + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2006 /* Correct length value */
2007 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2008 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2011 CRYPTO_ccm128_aad(ccm, ctx->buf, cctx->tls_aad_len);
2012 /* Fix buffer to point to payload */
2013 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2014 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2016 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2018 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2020 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2022 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2024 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2026 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2027 unsigned char tag[16];
2028 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2029 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2033 OPENSSL_cleanse(out, len);
2038 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2039 const unsigned char *in, size_t len)
2041 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
2042 CCM128_CONTEXT *ccm = &cctx->ccm;
2043 /* If not set up, return error */
2047 if (cctx->tls_aad_len >= 0)
2048 return aes_ccm_tls_cipher(ctx, out, in, len);
2053 if (!ctx->encrypt && !cctx->tag_set)
2057 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2062 /* If have AAD need message length */
2063 if (!cctx->len_set && len)
2065 CRYPTO_ccm128_aad(ccm, in, len);
2068 /* EVP_*Final() doesn't return any data */
2071 /* If not set length yet do it */
2072 if (!cctx->len_set) {
2073 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2078 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2080 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2086 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2088 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2089 unsigned char tag[16];
2090 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2091 if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
2096 OPENSSL_cleanse(out, len);
2105 # define aes_ccm_cleanup NULL
2107 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2108 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2109 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2110 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2111 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2112 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2119 /* Indicates if IV has been set */
2123 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2124 const unsigned char *iv, int enc)
2126 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2131 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2133 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2138 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2144 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2145 const unsigned char *in, size_t inlen)
2147 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2149 /* AES wrap with padding has IV length of 4, without padding 8 */
2150 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2151 /* No final operation so always return zero length */
2154 /* Input length must always be non-zero */
2157 /* If decrypting need at least 16 bytes and multiple of 8 */
2158 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2160 /* If not padding input must be multiple of 8 */
2161 if (!pad && inlen & 0x7)
2165 /* If padding round up to multiple of 8 */
2167 inlen = (inlen + 7) / 8 * 8;
2172 * If not padding output will be exactly 8 bytes smaller than
2173 * input. If padding it will be at least 8 bytes smaller but we
2174 * don't know how much.
2181 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2183 (block128_f) AES_encrypt);
2185 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2187 (block128_f) AES_decrypt);
2190 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2191 out, in, inlen, (block128_f) AES_encrypt);
2193 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2194 out, in, inlen, (block128_f) AES_decrypt);
2196 return rv ? (int)rv : -1;
2199 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2200 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2201 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2203 static const EVP_CIPHER aes_128_wrap = {
2205 8, 16, 8, WRAP_FLAGS,
2206 aes_wrap_init_key, aes_wrap_cipher,
2208 sizeof(EVP_AES_WRAP_CTX),
2209 NULL, NULL, NULL, NULL
2212 const EVP_CIPHER *EVP_aes_128_wrap(void)
2214 return &aes_128_wrap;
2217 static const EVP_CIPHER aes_192_wrap = {
2219 8, 24, 8, WRAP_FLAGS,
2220 aes_wrap_init_key, aes_wrap_cipher,
2222 sizeof(EVP_AES_WRAP_CTX),
2223 NULL, NULL, NULL, NULL
2226 const EVP_CIPHER *EVP_aes_192_wrap(void)
2228 return &aes_192_wrap;
2231 static const EVP_CIPHER aes_256_wrap = {
2233 8, 32, 8, WRAP_FLAGS,
2234 aes_wrap_init_key, aes_wrap_cipher,
2236 sizeof(EVP_AES_WRAP_CTX),
2237 NULL, NULL, NULL, NULL
2240 const EVP_CIPHER *EVP_aes_256_wrap(void)
2242 return &aes_256_wrap;
2245 static const EVP_CIPHER aes_128_wrap_pad = {
2246 NID_id_aes128_wrap_pad,
2247 8, 16, 4, WRAP_FLAGS,
2248 aes_wrap_init_key, aes_wrap_cipher,
2250 sizeof(EVP_AES_WRAP_CTX),
2251 NULL, NULL, NULL, NULL
2254 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2256 return &aes_128_wrap_pad;
2259 static const EVP_CIPHER aes_192_wrap_pad = {
2260 NID_id_aes192_wrap_pad,
2261 8, 24, 4, WRAP_FLAGS,
2262 aes_wrap_init_key, aes_wrap_cipher,
2264 sizeof(EVP_AES_WRAP_CTX),
2265 NULL, NULL, NULL, NULL
2268 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2270 return &aes_192_wrap_pad;
2273 static const EVP_CIPHER aes_256_wrap_pad = {
2274 NID_id_aes256_wrap_pad,
2275 8, 32, 4, WRAP_FLAGS,
2276 aes_wrap_init_key, aes_wrap_cipher,
2278 sizeof(EVP_AES_WRAP_CTX),
2279 NULL, NULL, NULL, NULL
2282 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2284 return &aes_256_wrap_pad;
2287 # ifndef OPENSSL_NO_OCB
2288 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2290 EVP_AES_OCB_CTX *octx = c->cipher_data;
2291 EVP_CIPHER_CTX *newc;
2292 EVP_AES_OCB_CTX *new_octx;
2298 octx->ivlen = c->cipher->iv_len;
2301 octx->data_buf_len = 0;
2302 octx->aad_buf_len = 0;
2305 case EVP_CTRL_AEAD_SET_IVLEN:
2306 /* IV len must be 1 to 15 */
2307 if (arg <= 0 || arg > 15)
2313 case EVP_CTRL_AEAD_SET_TAG:
2315 /* Tag len must be 0 to 16 */
2316 if (arg < 0 || arg > 16)
2322 if (arg != octx->taglen || c->encrypt)
2324 memcpy(octx->tag, ptr, arg);
2327 case EVP_CTRL_AEAD_GET_TAG:
2328 if (arg != octx->taglen || !c->encrypt)
2331 memcpy(ptr, octx->tag, arg);
2335 newc = (EVP_CIPHER_CTX *)ptr;
2336 new_octx = newc->cipher_data;
2337 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2338 &new_octx->ksenc.ks,
2339 &new_octx->ksdec.ks);
2347 # ifdef HWAES_CAPABLE
2348 # ifdef HWAES_ocb_encrypt
2349 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
2350 size_t blocks, const void *key,
2351 size_t start_block_num,
2352 unsigned char offset_i[16],
2353 const unsigned char L_[][16],
2354 unsigned char checksum[16]);
2356 # define HWAES_ocb_encrypt NULL
2358 # ifdef HWAES_ocb_decrypt
2359 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
2360 size_t blocks, const void *key,
2361 size_t start_block_num,
2362 unsigned char offset_i[16],
2363 const unsigned char L_[][16],
2364 unsigned char checksum[16]);
2366 # define HWAES_ocb_decrypt NULL
2370 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2371 const unsigned char *iv, int enc)
2373 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2379 * We set both the encrypt and decrypt key here because decrypt
2380 * needs both. We could possibly optimise to remove setting the
2381 * decrypt for an encryption operation.
2383 # ifdef HWAES_CAPABLE
2384 if (HWAES_CAPABLE) {
2385 HWAES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2386 HWAES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2387 if (!CRYPTO_ocb128_init(&octx->ocb,
2388 &octx->ksenc.ks, &octx->ksdec.ks,
2389 (block128_f) HWAES_encrypt,
2390 (block128_f) HWAES_decrypt,
2391 enc ? HWAES_ocb_encrypt
2392 : HWAES_ocb_decrypt))
2397 # ifdef VPAES_CAPABLE
2398 if (VPAES_CAPABLE) {
2399 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2400 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2401 if (!CRYPTO_ocb128_init(&octx->ocb,
2402 &octx->ksenc.ks, &octx->ksdec.ks,
2403 (block128_f) vpaes_encrypt,
2404 (block128_f) vpaes_decrypt,
2410 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2411 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2412 if (!CRYPTO_ocb128_init(&octx->ocb,
2413 &octx->ksenc.ks, &octx->ksdec.ks,
2414 (block128_f) AES_encrypt,
2415 (block128_f) AES_decrypt,
2422 * If we have an iv we can set it directly, otherwise use saved IV.
2424 if (iv == NULL && octx->iv_set)
2427 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2434 /* If key set use IV, otherwise copy */
2436 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2438 memcpy(octx->iv, iv, octx->ivlen);
2444 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2445 const unsigned char *in, size_t len)
2449 int written_len = 0;
2450 size_t trailing_len;
2451 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2453 /* If IV or Key not set then return error */
2462 * Need to ensure we are only passing full blocks to low level OCB
2463 * routines. We do it here rather than in EVP_EncryptUpdate/
2464 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2465 * and those routines don't support that
2468 /* Are we dealing with AAD or normal data here? */
2470 buf = octx->aad_buf;
2471 buf_len = &(octx->aad_buf_len);
2473 buf = octx->data_buf;
2474 buf_len = &(octx->data_buf_len);
2478 * If we've got a partially filled buffer from a previous call then
2479 * use that data first
2482 unsigned int remaining;
2484 remaining = 16 - (*buf_len);
2485 if (remaining > len) {
2486 memcpy(buf + (*buf_len), in, len);
2490 memcpy(buf + (*buf_len), in, remaining);
2493 * If we get here we've filled the buffer, so process it
2498 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2500 } else if (ctx->encrypt) {
2501 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2504 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2511 /* Do we have a partial block to handle at the end? */
2512 trailing_len = len % 16;
2515 * If we've got some full blocks to handle, then process these first
2517 if (len != trailing_len) {
2519 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2521 } else if (ctx->encrypt) {
2522 if (!CRYPTO_ocb128_encrypt
2523 (&octx->ocb, in, out, len - trailing_len))
2526 if (!CRYPTO_ocb128_decrypt
2527 (&octx->ocb, in, out, len - trailing_len))
2530 written_len += len - trailing_len;
2531 in += len - trailing_len;
2534 /* Handle any trailing partial block */
2536 memcpy(buf, in, trailing_len);
2537 *buf_len = trailing_len;
2543 * First of all empty the buffer of any partial block that we might
2544 * have been provided - both for data and AAD
2546 if (octx->data_buf_len) {
2548 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2549 octx->data_buf_len))
2552 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2553 octx->data_buf_len))
2556 written_len = octx->data_buf_len;
2557 octx->data_buf_len = 0;
2559 if (octx->aad_buf_len) {
2560 if (!CRYPTO_ocb128_aad
2561 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2563 octx->aad_buf_len = 0;
2565 /* If decrypting then verify */
2566 if (!ctx->encrypt) {
2567 if (octx->taglen < 0)
2569 if (CRYPTO_ocb128_finish(&octx->ocb,
2570 octx->tag, octx->taglen) != 0)
2575 /* If encrypting then just get the tag */
2576 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2578 /* Don't reuse the IV */
2584 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2586 EVP_AES_OCB_CTX *octx = c->cipher_data;
2587 CRYPTO_ocb128_cleanup(&octx->ocb);
2591 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2592 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2593 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2594 # endif /* OPENSSL_NO_OCB */