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 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
465 const unsigned char *iv, int enc)
467 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
473 * We set both the encrypt and decrypt key here because decrypt
474 * needs both. We could possibly optimise to remove setting the
475 * decrypt for an encryption operation.
477 aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
478 aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
479 if (!CRYPTO_ocb128_init(&octx->ocb,
480 &octx->ksenc.ks, &octx->ksdec.ks,
481 (block128_f) aesni_encrypt,
482 (block128_f) aesni_decrypt))
488 * If we have an iv we can set it directly, otherwise use saved IV.
490 if (iv == NULL && octx->iv_set)
493 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
500 /* If key set use IV, otherwise copy */
502 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
504 memcpy(octx->iv, iv, octx->ivlen);
510 # define aesni_ocb_cipher aes_ocb_cipher
511 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
512 const unsigned char *in, size_t len);
513 # endif /* OPENSSL_NO_OCB */
515 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
516 static const EVP_CIPHER aesni_##keylen##_##mode = { \
517 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
518 flags|EVP_CIPH_##MODE##_MODE, \
520 aesni_##mode##_cipher, \
522 sizeof(EVP_AES_KEY), \
523 NULL,NULL,NULL,NULL }; \
524 static const EVP_CIPHER aes_##keylen##_##mode = { \
525 nid##_##keylen##_##nmode,blocksize, \
527 flags|EVP_CIPH_##MODE##_MODE, \
529 aes_##mode##_cipher, \
531 sizeof(EVP_AES_KEY), \
532 NULL,NULL,NULL,NULL }; \
533 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
534 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
536 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
537 static const EVP_CIPHER aesni_##keylen##_##mode = { \
538 nid##_##keylen##_##mode,blocksize, \
539 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
540 flags|EVP_CIPH_##MODE##_MODE, \
541 aesni_##mode##_init_key, \
542 aesni_##mode##_cipher, \
543 aes_##mode##_cleanup, \
544 sizeof(EVP_AES_##MODE##_CTX), \
545 NULL,NULL,aes_##mode##_ctrl,NULL }; \
546 static const EVP_CIPHER aes_##keylen##_##mode = { \
547 nid##_##keylen##_##mode,blocksize, \
548 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
549 flags|EVP_CIPH_##MODE##_MODE, \
550 aes_##mode##_init_key, \
551 aes_##mode##_cipher, \
552 aes_##mode##_cleanup, \
553 sizeof(EVP_AES_##MODE##_CTX), \
554 NULL,NULL,aes_##mode##_ctrl,NULL }; \
555 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
556 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
558 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
560 # include "sparc_arch.h"
562 extern unsigned int OPENSSL_sparcv9cap_P[];
564 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
566 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
567 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
568 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
570 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
573 * Key-length specific subroutines were chosen for following reason.
574 * Each SPARC T4 core can execute up to 8 threads which share core's
575 * resources. Loading as much key material to registers allows to
576 * minimize references to shared memory interface, as well as amount
577 * of instructions in inner loops [much needed on T4]. But then having
578 * non-key-length specific routines would require conditional branches
579 * either in inner loops or on subroutines' entries. Former is hardly
580 * acceptable, while latter means code size increase to size occupied
581 * by multiple key-length specfic subroutines, so why fight?
583 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
584 size_t len, const AES_KEY *key,
585 unsigned char *ivec);
586 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
587 size_t len, const AES_KEY *key,
588 unsigned char *ivec);
589 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
590 size_t len, const AES_KEY *key,
591 unsigned char *ivec);
592 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
593 size_t len, const AES_KEY *key,
594 unsigned char *ivec);
595 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
596 size_t len, const AES_KEY *key,
597 unsigned char *ivec);
598 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
599 size_t len, const AES_KEY *key,
600 unsigned char *ivec);
601 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
602 size_t blocks, const AES_KEY *key,
603 unsigned char *ivec);
604 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
605 size_t blocks, const AES_KEY *key,
606 unsigned char *ivec);
607 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
608 size_t blocks, const AES_KEY *key,
609 unsigned char *ivec);
610 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
611 size_t blocks, const AES_KEY *key1,
612 const AES_KEY *key2, const unsigned char *ivec);
613 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
614 size_t blocks, const AES_KEY *key1,
615 const AES_KEY *key2, const unsigned char *ivec);
616 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
617 size_t blocks, const AES_KEY *key1,
618 const AES_KEY *key2, const unsigned char *ivec);
619 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
620 size_t blocks, const AES_KEY *key1,
621 const AES_KEY *key2, const unsigned char *ivec);
623 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
624 const unsigned char *iv, int enc)
627 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
629 mode = ctx->cipher->flags & EVP_CIPH_MODE;
630 bits = ctx->key_len * 8;
631 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
634 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
635 dat->block = (block128_f) aes_t4_decrypt;
638 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
639 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
642 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
643 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
646 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
647 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
654 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
655 dat->block = (block128_f) aes_t4_encrypt;
658 if (mode == EVP_CIPH_CBC_MODE)
659 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
660 else if (mode == EVP_CIPH_CTR_MODE)
661 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
663 dat->stream.cbc = NULL;
666 if (mode == EVP_CIPH_CBC_MODE)
667 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
668 else if (mode == EVP_CIPH_CTR_MODE)
669 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
671 dat->stream.cbc = NULL;
674 if (mode == EVP_CIPH_CBC_MODE)
675 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
676 else if (mode == EVP_CIPH_CTR_MODE)
677 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
679 dat->stream.cbc = NULL;
687 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
694 # define aes_t4_cbc_cipher aes_cbc_cipher
695 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
696 const unsigned char *in, size_t len);
698 # define aes_t4_ecb_cipher aes_ecb_cipher
699 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
700 const unsigned char *in, size_t len);
702 # define aes_t4_ofb_cipher aes_ofb_cipher
703 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
704 const unsigned char *in, size_t len);
706 # define aes_t4_cfb_cipher aes_cfb_cipher
707 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
708 const unsigned char *in, size_t len);
710 # define aes_t4_cfb8_cipher aes_cfb8_cipher
711 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
712 const unsigned char *in, size_t len);
714 # define aes_t4_cfb1_cipher aes_cfb1_cipher
715 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
716 const unsigned char *in, size_t len);
718 # define aes_t4_ctr_cipher aes_ctr_cipher
719 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
720 const unsigned char *in, size_t len);
722 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
723 const unsigned char *iv, int enc)
725 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
729 int bits = ctx->key_len * 8;
730 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
731 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
732 (block128_f) aes_t4_encrypt);
735 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
738 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
741 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
747 * If we have an iv can set it directly, otherwise use saved IV.
749 if (iv == NULL && gctx->iv_set)
752 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
757 /* If key set use IV, otherwise copy */
759 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
761 memcpy(gctx->iv, iv, gctx->ivlen);
768 # define aes_t4_gcm_cipher aes_gcm_cipher
769 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
770 const unsigned char *in, size_t len);
772 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
773 const unsigned char *iv, int enc)
775 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
780 int bits = ctx->key_len * 4;
782 /* key_len is two AES keys */
784 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
785 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
788 xctx->stream = aes128_t4_xts_encrypt;
791 xctx->stream = aes256_t4_xts_encrypt;
797 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
798 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
801 xctx->stream = aes128_t4_xts_decrypt;
804 xctx->stream = aes256_t4_xts_decrypt;
811 aes_t4_set_encrypt_key(key + ctx->key_len / 2,
812 ctx->key_len * 4, &xctx->ks2.ks);
813 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
815 xctx->xts.key1 = &xctx->ks1;
819 xctx->xts.key2 = &xctx->ks2;
820 memcpy(ctx->iv, iv, 16);
826 # define aes_t4_xts_cipher aes_xts_cipher
827 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
828 const unsigned char *in, size_t len);
830 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
831 const unsigned char *iv, int enc)
833 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
837 int bits = ctx->key_len * 8;
838 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
839 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
840 &cctx->ks, (block128_f) aes_t4_encrypt);
845 memcpy(ctx->iv, iv, 15 - cctx->L);
851 # define aes_t4_ccm_cipher aes_ccm_cipher
852 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
853 const unsigned char *in, size_t len);
855 # ifndef OPENSSL_NO_OCB
856 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
857 const unsigned char *iv, int enc)
859 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
865 * We set both the encrypt and decrypt key here because decrypt
866 * needs both. We could possibly optimise to remove setting the
867 * decrypt for an encryption operation.
869 aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
870 aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
871 if (!CRYPTO_ocb128_init(&octx->ocb,
872 &octx->ksenc.ks, &octx->ksdec.ks,
873 (block128_f) aes_t4_encrypt,
874 (block128_f) aes_t4_decrypt))
880 * If we have an iv we can set it directly, otherwise use saved IV.
882 if (iv == NULL && octx->iv_set)
885 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
892 /* If key set use IV, otherwise copy */
894 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
896 memcpy(octx->iv, iv, octx->ivlen);
902 # define aes_t4_ocb_cipher aes_ocb_cipher
903 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
904 const unsigned char *in, size_t len);
905 # endif /* OPENSSL_NO_OCB */
907 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
908 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
909 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
910 flags|EVP_CIPH_##MODE##_MODE, \
912 aes_t4_##mode##_cipher, \
914 sizeof(EVP_AES_KEY), \
915 NULL,NULL,NULL,NULL }; \
916 static const EVP_CIPHER aes_##keylen##_##mode = { \
917 nid##_##keylen##_##nmode,blocksize, \
919 flags|EVP_CIPH_##MODE##_MODE, \
921 aes_##mode##_cipher, \
923 sizeof(EVP_AES_KEY), \
924 NULL,NULL,NULL,NULL }; \
925 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
926 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
928 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
929 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
930 nid##_##keylen##_##mode,blocksize, \
931 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
932 flags|EVP_CIPH_##MODE##_MODE, \
933 aes_t4_##mode##_init_key, \
934 aes_t4_##mode##_cipher, \
935 aes_##mode##_cleanup, \
936 sizeof(EVP_AES_##MODE##_CTX), \
937 NULL,NULL,aes_##mode##_ctrl,NULL }; \
938 static const EVP_CIPHER aes_##keylen##_##mode = { \
939 nid##_##keylen##_##mode,blocksize, \
940 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
941 flags|EVP_CIPH_##MODE##_MODE, \
942 aes_##mode##_init_key, \
943 aes_##mode##_cipher, \
944 aes_##mode##_cleanup, \
945 sizeof(EVP_AES_##MODE##_CTX), \
946 NULL,NULL,aes_##mode##_ctrl,NULL }; \
947 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
948 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
952 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
953 static const EVP_CIPHER aes_##keylen##_##mode = { \
954 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
955 flags|EVP_CIPH_##MODE##_MODE, \
957 aes_##mode##_cipher, \
959 sizeof(EVP_AES_KEY), \
960 NULL,NULL,NULL,NULL }; \
961 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
962 { return &aes_##keylen##_##mode; }
964 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
965 static const EVP_CIPHER aes_##keylen##_##mode = { \
966 nid##_##keylen##_##mode,blocksize, \
967 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
968 flags|EVP_CIPH_##MODE##_MODE, \
969 aes_##mode##_init_key, \
970 aes_##mode##_cipher, \
971 aes_##mode##_cleanup, \
972 sizeof(EVP_AES_##MODE##_CTX), \
973 NULL,NULL,aes_##mode##_ctrl,NULL }; \
974 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
975 { return &aes_##keylen##_##mode; }
979 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
980 # include "arm_arch.h"
981 # if __ARM_MAX_ARCH__>=7
982 # if defined(BSAES_ASM)
983 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
985 # if defined(VPAES_ASM)
986 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
988 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
989 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
990 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
991 # define HWAES_encrypt aes_v8_encrypt
992 # define HWAES_decrypt aes_v8_decrypt
993 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
994 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
998 # if defined(HWAES_CAPABLE)
999 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1001 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1003 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1004 const AES_KEY *key);
1005 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1006 const AES_KEY *key);
1007 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1008 size_t length, const AES_KEY *key,
1009 unsigned char *ivec, const int enc);
1010 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1011 size_t len, const AES_KEY *key,
1012 const unsigned char ivec[16]);
1015 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1016 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1017 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1018 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1019 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1020 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1021 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1022 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1024 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1025 const unsigned char *iv, int enc)
1028 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1030 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1031 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1033 # ifdef HWAES_CAPABLE
1034 if (HWAES_CAPABLE) {
1035 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1036 dat->block = (block128_f) HWAES_decrypt;
1037 dat->stream.cbc = NULL;
1038 # ifdef HWAES_cbc_encrypt
1039 if (mode == EVP_CIPH_CBC_MODE)
1040 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1044 # ifdef BSAES_CAPABLE
1045 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1046 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1047 dat->block = (block128_f) AES_decrypt;
1048 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1051 # ifdef VPAES_CAPABLE
1052 if (VPAES_CAPABLE) {
1053 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1054 dat->block = (block128_f) vpaes_decrypt;
1055 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1056 (cbc128_f) vpaes_cbc_encrypt : NULL;
1060 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1061 dat->block = (block128_f) AES_decrypt;
1062 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1063 (cbc128_f) AES_cbc_encrypt : NULL;
1065 # ifdef HWAES_CAPABLE
1066 if (HWAES_CAPABLE) {
1067 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1068 dat->block = (block128_f) HWAES_encrypt;
1069 dat->stream.cbc = NULL;
1070 # ifdef HWAES_cbc_encrypt
1071 if (mode == EVP_CIPH_CBC_MODE)
1072 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1075 # ifdef HWAES_ctr32_encrypt_blocks
1076 if (mode == EVP_CIPH_CTR_MODE)
1077 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1080 (void)0; /* terminate potentially open 'else' */
1083 # ifdef BSAES_CAPABLE
1084 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1085 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1086 dat->block = (block128_f) AES_encrypt;
1087 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1090 # ifdef VPAES_CAPABLE
1091 if (VPAES_CAPABLE) {
1092 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1093 dat->block = (block128_f) vpaes_encrypt;
1094 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1095 (cbc128_f) vpaes_cbc_encrypt : NULL;
1099 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1100 dat->block = (block128_f) AES_encrypt;
1101 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1102 (cbc128_f) AES_cbc_encrypt : NULL;
1104 if (mode == EVP_CIPH_CTR_MODE)
1105 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1110 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1117 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1118 const unsigned char *in, size_t len)
1120 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1122 if (dat->stream.cbc)
1123 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1124 else if (ctx->encrypt)
1125 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1127 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1132 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1133 const unsigned char *in, size_t len)
1135 size_t bl = ctx->cipher->block_size;
1137 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1142 for (i = 0, len -= bl; i <= len; i += bl)
1143 (*dat->block) (in + i, out + i, &dat->ks);
1148 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1149 const unsigned char *in, size_t len)
1151 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1153 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1154 ctx->iv, &ctx->num, dat->block);
1158 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1159 const unsigned char *in, size_t len)
1161 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1163 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1164 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1168 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1169 const unsigned char *in, size_t len)
1171 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1173 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1174 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1178 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1179 const unsigned char *in, size_t len)
1181 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1183 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1184 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1185 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1189 while (len >= MAXBITCHUNK) {
1190 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1191 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1195 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1196 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1201 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1202 const unsigned char *in, size_t len)
1204 unsigned int num = ctx->num;
1205 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1207 if (dat->stream.ctr)
1208 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1209 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1211 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1212 ctx->iv, ctx->buf, &num, dat->block);
1213 ctx->num = (size_t)num;
1217 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1218 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1219 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1221 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1223 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1224 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1225 if (gctx->iv != c->iv)
1226 OPENSSL_free(gctx->iv);
1230 /* increment counter (64-bit int) by 1 */
1231 static void ctr64_inc(unsigned char *counter)
1246 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1248 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1253 gctx->ivlen = c->cipher->iv_len;
1257 gctx->tls_aad_len = -1;
1260 case EVP_CTRL_AEAD_SET_IVLEN:
1263 /* Allocate memory for IV if needed */
1264 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1265 if (gctx->iv != c->iv)
1266 OPENSSL_free(gctx->iv);
1267 gctx->iv = OPENSSL_malloc(arg);
1274 case EVP_CTRL_AEAD_SET_TAG:
1275 if (arg <= 0 || arg > 16 || c->encrypt)
1277 memcpy(c->buf, ptr, arg);
1281 case EVP_CTRL_AEAD_GET_TAG:
1282 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1284 memcpy(ptr, c->buf, arg);
1287 case EVP_CTRL_GCM_SET_IV_FIXED:
1288 /* Special case: -1 length restores whole IV */
1290 memcpy(gctx->iv, ptr, gctx->ivlen);
1295 * Fixed field must be at least 4 bytes and invocation field at least
1298 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1301 memcpy(gctx->iv, ptr, arg);
1302 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1307 case EVP_CTRL_GCM_IV_GEN:
1308 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1310 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1311 if (arg <= 0 || arg > gctx->ivlen)
1313 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1315 * Invocation field will be at least 8 bytes in size and so no need
1316 * to check wrap around or increment more than last 8 bytes.
1318 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1322 case EVP_CTRL_GCM_SET_IV_INV:
1323 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1325 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1326 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1330 case EVP_CTRL_AEAD_TLS1_AAD:
1331 /* Save the AAD for later use */
1332 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1334 memcpy(c->buf, ptr, arg);
1335 gctx->tls_aad_len = arg;
1337 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1338 /* Correct length for explicit IV */
1339 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1340 /* If decrypting correct for tag too */
1342 len -= EVP_GCM_TLS_TAG_LEN;
1343 c->buf[arg - 2] = len >> 8;
1344 c->buf[arg - 1] = len & 0xff;
1346 /* Extra padding: tag appended to record */
1347 return EVP_GCM_TLS_TAG_LEN;
1351 EVP_CIPHER_CTX *out = ptr;
1352 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1353 if (gctx->gcm.key) {
1354 if (gctx->gcm.key != &gctx->ks)
1356 gctx_out->gcm.key = &gctx_out->ks;
1358 if (gctx->iv == c->iv)
1359 gctx_out->iv = out->iv;
1361 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1364 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1375 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1376 const unsigned char *iv, int enc)
1378 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1383 # ifdef HWAES_CAPABLE
1384 if (HWAES_CAPABLE) {
1385 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1386 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1387 (block128_f) HWAES_encrypt);
1388 # ifdef HWAES_ctr32_encrypt_blocks
1389 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1396 # ifdef BSAES_CAPABLE
1397 if (BSAES_CAPABLE) {
1398 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1399 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1400 (block128_f) AES_encrypt);
1401 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1405 # ifdef VPAES_CAPABLE
1406 if (VPAES_CAPABLE) {
1407 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1408 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1409 (block128_f) vpaes_encrypt);
1414 (void)0; /* terminate potentially open 'else' */
1416 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1417 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1418 (block128_f) AES_encrypt);
1420 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1427 * If we have an iv can set it directly, otherwise use saved IV.
1429 if (iv == NULL && gctx->iv_set)
1432 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1437 /* If key set use IV, otherwise copy */
1439 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1441 memcpy(gctx->iv, iv, gctx->ivlen);
1449 * Handle TLS GCM packet format. This consists of the last portion of the IV
1450 * followed by the payload and finally the tag. On encrypt generate IV,
1451 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1455 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1456 const unsigned char *in, size_t len)
1458 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1460 /* Encrypt/decrypt must be performed in place */
1462 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1465 * Set IV from start of buffer or generate IV and write to start of
1468 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1469 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1470 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1473 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1475 /* Fix buffer and length to point to payload */
1476 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1477 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1478 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1480 /* Encrypt payload */
1483 # if defined(AES_GCM_ASM)
1484 if (len >= 32 && AES_GCM_ASM(gctx)) {
1485 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1488 bulk = AES_gcm_encrypt(in, out, len,
1490 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1491 gctx->gcm.len.u[1] += bulk;
1494 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1497 len - bulk, gctx->ctr))
1501 # if defined(AES_GCM_ASM2)
1502 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1503 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1506 bulk = AES_gcm_encrypt(in, out, len,
1508 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1509 gctx->gcm.len.u[1] += bulk;
1512 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1513 in + bulk, out + bulk, len - bulk))
1517 /* Finally write tag */
1518 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1519 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1524 # if defined(AES_GCM_ASM)
1525 if (len >= 16 && AES_GCM_ASM(gctx)) {
1526 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1529 bulk = AES_gcm_decrypt(in, out, len,
1531 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1532 gctx->gcm.len.u[1] += bulk;
1535 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1538 len - bulk, gctx->ctr))
1542 # if defined(AES_GCM_ASM2)
1543 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1544 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1547 bulk = AES_gcm_decrypt(in, out, len,
1549 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1550 gctx->gcm.len.u[1] += bulk;
1553 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1554 in + bulk, out + bulk, len - bulk))
1558 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1559 /* If tag mismatch wipe buffer */
1560 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1561 OPENSSL_cleanse(out, len);
1569 gctx->tls_aad_len = -1;
1573 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1574 const unsigned char *in, size_t len)
1576 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1577 /* If not set up, return error */
1581 if (gctx->tls_aad_len >= 0)
1582 return aes_gcm_tls_cipher(ctx, out, in, len);
1588 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1590 } else if (ctx->encrypt) {
1593 # if defined(AES_GCM_ASM)
1594 if (len >= 32 && AES_GCM_ASM(gctx)) {
1595 size_t res = (16 - gctx->gcm.mres) % 16;
1597 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1600 bulk = AES_gcm_encrypt(in + res,
1601 out + res, len - res,
1602 gctx->gcm.key, gctx->gcm.Yi.c,
1604 gctx->gcm.len.u[1] += bulk;
1608 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1611 len - bulk, gctx->ctr))
1615 # if defined(AES_GCM_ASM2)
1616 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1617 size_t res = (16 - gctx->gcm.mres) % 16;
1619 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1622 bulk = AES_gcm_encrypt(in + res,
1623 out + res, len - res,
1624 gctx->gcm.key, gctx->gcm.Yi.c,
1626 gctx->gcm.len.u[1] += bulk;
1630 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1631 in + bulk, out + bulk, len - bulk))
1637 # if defined(AES_GCM_ASM)
1638 if (len >= 16 && AES_GCM_ASM(gctx)) {
1639 size_t res = (16 - gctx->gcm.mres) % 16;
1641 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1644 bulk = AES_gcm_decrypt(in + res,
1645 out + res, len - res,
1647 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1648 gctx->gcm.len.u[1] += bulk;
1652 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1655 len - bulk, gctx->ctr))
1659 # if defined(AES_GCM_ASM2)
1660 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1661 size_t res = (16 - gctx->gcm.mres) % 16;
1663 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1666 bulk = AES_gcm_decrypt(in + res,
1667 out + res, len - res,
1669 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1670 gctx->gcm.len.u[1] += bulk;
1674 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1675 in + bulk, out + bulk, len - bulk))
1681 if (!ctx->encrypt) {
1682 if (gctx->taglen < 0)
1684 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1689 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1691 /* Don't reuse the IV */
1698 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1699 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1700 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1701 | EVP_CIPH_CUSTOM_COPY)
1703 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1704 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1705 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1706 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1707 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1708 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1710 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1712 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1713 if (type == EVP_CTRL_COPY) {
1714 EVP_CIPHER_CTX *out = ptr;
1715 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1716 if (xctx->xts.key1) {
1717 if (xctx->xts.key1 != &xctx->ks1)
1719 xctx_out->xts.key1 = &xctx_out->ks1;
1721 if (xctx->xts.key2) {
1722 if (xctx->xts.key2 != &xctx->ks2)
1724 xctx_out->xts.key2 = &xctx_out->ks2;
1727 } else if (type != EVP_CTRL_INIT)
1729 /* key1 and key2 are used as an indicator both key and IV are set */
1730 xctx->xts.key1 = NULL;
1731 xctx->xts.key2 = NULL;
1735 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1736 const unsigned char *iv, int enc)
1738 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1745 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1747 xctx->stream = NULL;
1749 /* key_len is two AES keys */
1750 # ifdef HWAES_CAPABLE
1751 if (HWAES_CAPABLE) {
1753 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1755 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1757 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1759 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1762 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1763 ctx->key_len * 4, &xctx->ks2.ks);
1764 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1766 xctx->xts.key1 = &xctx->ks1;
1770 # ifdef BSAES_CAPABLE
1772 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1775 # ifdef VPAES_CAPABLE
1776 if (VPAES_CAPABLE) {
1778 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1780 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1782 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1784 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1787 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1788 ctx->key_len * 4, &xctx->ks2.ks);
1789 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1791 xctx->xts.key1 = &xctx->ks1;
1795 (void)0; /* terminate potentially open 'else' */
1798 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1799 xctx->xts.block1 = (block128_f) AES_encrypt;
1801 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1802 xctx->xts.block1 = (block128_f) AES_decrypt;
1805 AES_set_encrypt_key(key + ctx->key_len / 2,
1806 ctx->key_len * 4, &xctx->ks2.ks);
1807 xctx->xts.block2 = (block128_f) AES_encrypt;
1809 xctx->xts.key1 = &xctx->ks1;
1813 xctx->xts.key2 = &xctx->ks2;
1814 memcpy(ctx->iv, iv, 16);
1820 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1821 const unsigned char *in, size_t len)
1823 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1824 if (!xctx->xts.key1 || !xctx->xts.key2)
1826 if (!out || !in || len < AES_BLOCK_SIZE)
1829 (*xctx->stream) (in, out, len,
1830 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1831 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1837 # define aes_xts_cleanup NULL
1839 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1840 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1841 | EVP_CIPH_CUSTOM_COPY)
1843 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1844 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1846 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1848 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1857 cctx->tls_aad_len = -1;
1860 case EVP_CTRL_AEAD_TLS1_AAD:
1861 /* Save the AAD for later use */
1862 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1864 memcpy(c->buf, ptr, arg);
1865 cctx->tls_aad_len = arg;
1867 uint16_t len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1868 /* Correct length for explicit IV */
1869 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1870 /* If decrypting correct for tag too */
1873 c->buf[arg - 2] = len >> 8;
1874 c->buf[arg - 1] = len & 0xff;
1876 /* Extra padding: tag appended to record */
1879 case EVP_CTRL_CCM_SET_IV_FIXED:
1880 /* Sanity check length */
1881 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1883 /* Just copy to first part of IV */
1884 memcpy(c->iv, ptr, arg);
1887 case EVP_CTRL_AEAD_SET_IVLEN:
1889 case EVP_CTRL_CCM_SET_L:
1890 if (arg < 2 || arg > 8)
1895 case EVP_CTRL_AEAD_SET_TAG:
1896 if ((arg & 1) || arg < 4 || arg > 16)
1898 if (c->encrypt && ptr)
1902 memcpy(c->buf, ptr, arg);
1907 case EVP_CTRL_AEAD_GET_TAG:
1908 if (!c->encrypt || !cctx->tag_set)
1910 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1919 EVP_CIPHER_CTX *out = ptr;
1920 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1921 if (cctx->ccm.key) {
1922 if (cctx->ccm.key != &cctx->ks)
1924 cctx_out->ccm.key = &cctx_out->ks;
1935 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1936 const unsigned char *iv, int enc)
1938 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1943 # ifdef HWAES_CAPABLE
1944 if (HWAES_CAPABLE) {
1945 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1947 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1948 &cctx->ks, (block128_f) HWAES_encrypt);
1954 # ifdef VPAES_CAPABLE
1955 if (VPAES_CAPABLE) {
1956 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1957 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1958 &cctx->ks, (block128_f) vpaes_encrypt);
1964 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1965 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1966 &cctx->ks, (block128_f) AES_encrypt);
1971 memcpy(ctx->iv, iv, 15 - cctx->L);
1977 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1978 const unsigned char *in, size_t len)
1980 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1981 CCM128_CONTEXT *ccm = &cctx->ccm;
1982 /* Encrypt/decrypt must be performed in place */
1983 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
1985 /* If encrypting set explicit IV from sequence number (start of AAD) */
1987 memcpy(out, ctx->buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
1988 /* Get rest of IV from explicit IV */
1989 memcpy(ctx->iv + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
1990 /* Correct length value */
1991 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
1992 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1995 CRYPTO_ccm128_aad(ccm, ctx->buf, cctx->tls_aad_len);
1996 /* Fix buffer to point to payload */
1997 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
1998 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2000 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2002 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2004 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2006 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2008 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2010 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2011 unsigned char tag[16];
2012 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2013 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2017 OPENSSL_cleanse(out, len);
2022 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2023 const unsigned char *in, size_t len)
2025 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
2026 CCM128_CONTEXT *ccm = &cctx->ccm;
2027 /* If not set up, return error */
2031 if (cctx->tls_aad_len >= 0)
2032 return aes_ccm_tls_cipher(ctx, out, in, len);
2037 if (!ctx->encrypt && !cctx->tag_set)
2041 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2046 /* If have AAD need message length */
2047 if (!cctx->len_set && len)
2049 CRYPTO_ccm128_aad(ccm, in, len);
2052 /* EVP_*Final() doesn't return any data */
2055 /* If not set length yet do it */
2056 if (!cctx->len_set) {
2057 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2062 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2064 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2070 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2072 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2073 unsigned char tag[16];
2074 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2075 if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
2080 OPENSSL_cleanse(out, len);
2089 # define aes_ccm_cleanup NULL
2091 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2092 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2093 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2094 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2095 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2096 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2103 /* Indicates if IV has been set */
2107 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2108 const unsigned char *iv, int enc)
2110 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2115 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2117 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2122 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2128 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2129 const unsigned char *in, size_t inlen)
2131 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2133 /* AES wrap with padding has IV length of 4, without padding 8 */
2134 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2135 /* No final operation so always return zero length */
2138 /* Input length must always be non-zero */
2141 /* If decrypting need at least 16 bytes and multiple of 8 */
2142 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2144 /* If not padding input must be multiple of 8 */
2145 if (!pad && inlen & 0x7)
2149 /* If padding round up to multiple of 8 */
2151 inlen = (inlen + 7) / 8 * 8;
2156 * If not padding output will be exactly 8 bytes smaller than
2157 * input. If padding it will be at least 8 bytes smaller but we
2158 * don't know how much.
2165 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2167 (block128_f) AES_encrypt);
2169 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2171 (block128_f) AES_decrypt);
2174 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2175 out, in, inlen, (block128_f) AES_encrypt);
2177 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2178 out, in, inlen, (block128_f) AES_decrypt);
2180 return rv ? (int)rv : -1;
2183 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2184 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2185 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2187 static const EVP_CIPHER aes_128_wrap = {
2189 8, 16, 8, WRAP_FLAGS,
2190 aes_wrap_init_key, aes_wrap_cipher,
2192 sizeof(EVP_AES_WRAP_CTX),
2193 NULL, NULL, NULL, NULL
2196 const EVP_CIPHER *EVP_aes_128_wrap(void)
2198 return &aes_128_wrap;
2201 static const EVP_CIPHER aes_192_wrap = {
2203 8, 24, 8, WRAP_FLAGS,
2204 aes_wrap_init_key, aes_wrap_cipher,
2206 sizeof(EVP_AES_WRAP_CTX),
2207 NULL, NULL, NULL, NULL
2210 const EVP_CIPHER *EVP_aes_192_wrap(void)
2212 return &aes_192_wrap;
2215 static const EVP_CIPHER aes_256_wrap = {
2217 8, 32, 8, WRAP_FLAGS,
2218 aes_wrap_init_key, aes_wrap_cipher,
2220 sizeof(EVP_AES_WRAP_CTX),
2221 NULL, NULL, NULL, NULL
2224 const EVP_CIPHER *EVP_aes_256_wrap(void)
2226 return &aes_256_wrap;
2229 static const EVP_CIPHER aes_128_wrap_pad = {
2230 NID_id_aes128_wrap_pad,
2231 8, 16, 4, WRAP_FLAGS,
2232 aes_wrap_init_key, aes_wrap_cipher,
2234 sizeof(EVP_AES_WRAP_CTX),
2235 NULL, NULL, NULL, NULL
2238 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2240 return &aes_128_wrap_pad;
2243 static const EVP_CIPHER aes_192_wrap_pad = {
2244 NID_id_aes192_wrap_pad,
2245 8, 24, 4, WRAP_FLAGS,
2246 aes_wrap_init_key, aes_wrap_cipher,
2248 sizeof(EVP_AES_WRAP_CTX),
2249 NULL, NULL, NULL, NULL
2252 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2254 return &aes_192_wrap_pad;
2257 static const EVP_CIPHER aes_256_wrap_pad = {
2258 NID_id_aes256_wrap_pad,
2259 8, 32, 4, WRAP_FLAGS,
2260 aes_wrap_init_key, aes_wrap_cipher,
2262 sizeof(EVP_AES_WRAP_CTX),
2263 NULL, NULL, NULL, NULL
2266 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2268 return &aes_256_wrap_pad;
2271 # ifndef OPENSSL_NO_OCB
2272 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2274 EVP_AES_OCB_CTX *octx = c->cipher_data;
2275 EVP_CIPHER_CTX *newc;
2276 EVP_AES_OCB_CTX *new_octx;
2282 octx->ivlen = c->cipher->iv_len;
2285 octx->data_buf_len = 0;
2286 octx->aad_buf_len = 0;
2289 case EVP_CTRL_AEAD_SET_IVLEN:
2290 /* IV len must be 1 to 15 */
2291 if (arg <= 0 || arg > 15)
2297 case EVP_CTRL_AEAD_SET_TAG:
2299 /* Tag len must be 0 to 16 */
2300 if (arg < 0 || arg > 16)
2306 if (arg != octx->taglen || c->encrypt)
2308 memcpy(octx->tag, ptr, arg);
2311 case EVP_CTRL_AEAD_GET_TAG:
2312 if (arg != octx->taglen || !c->encrypt)
2315 memcpy(ptr, octx->tag, arg);
2319 newc = (EVP_CIPHER_CTX *)ptr;
2320 new_octx = newc->cipher_data;
2321 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2322 &new_octx->ksenc.ks,
2323 &new_octx->ksdec.ks);
2331 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2332 const unsigned char *iv, int enc)
2334 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2340 * We set both the encrypt and decrypt key here because decrypt
2341 * needs both. We could possibly optimise to remove setting the
2342 * decrypt for an encryption operation.
2344 # ifdef VPAES_CAPABLE
2345 if (VPAES_CAPABLE) {
2346 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2347 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2348 if (!CRYPTO_ocb128_init(&octx->ocb,
2349 &octx->ksenc.ks, &octx->ksdec.ks,
2350 (block128_f) vpaes_encrypt,
2351 (block128_f) vpaes_decrypt))
2356 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2357 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2358 if (!CRYPTO_ocb128_init(&octx->ocb,
2359 &octx->ksenc.ks, &octx->ksdec.ks,
2360 (block128_f) AES_encrypt,
2361 (block128_f) AES_decrypt))
2367 * If we have an iv we can set it directly, otherwise use saved IV.
2369 if (iv == NULL && octx->iv_set)
2372 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2379 /* If key set use IV, otherwise copy */
2381 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2383 memcpy(octx->iv, iv, octx->ivlen);
2389 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2390 const unsigned char *in, size_t len)
2394 int written_len = 0;
2395 size_t trailing_len;
2396 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2398 /* If IV or Key not set then return error */
2407 * Need to ensure we are only passing full blocks to low level OCB
2408 * routines. We do it here rather than in EVP_EncryptUpdate/
2409 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2410 * and those routines don't support that
2413 /* Are we dealing with AAD or normal data here? */
2415 buf = octx->aad_buf;
2416 buf_len = &(octx->aad_buf_len);
2418 buf = octx->data_buf;
2419 buf_len = &(octx->data_buf_len);
2423 * If we've got a partially filled buffer from a previous call then
2424 * use that data first
2427 unsigned int remaining;
2429 remaining = 16 - (*buf_len);
2430 if (remaining > len) {
2431 memcpy(buf + (*buf_len), in, len);
2435 memcpy(buf + (*buf_len), in, remaining);
2438 * If we get here we've filled the buffer, so process it
2443 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2445 } else if (ctx->encrypt) {
2446 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2449 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2456 /* Do we have a partial block to handle at the end? */
2457 trailing_len = len % 16;
2460 * If we've got some full blocks to handle, then process these first
2462 if (len != trailing_len) {
2464 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2466 } else if (ctx->encrypt) {
2467 if (!CRYPTO_ocb128_encrypt
2468 (&octx->ocb, in, out, len - trailing_len))
2471 if (!CRYPTO_ocb128_decrypt
2472 (&octx->ocb, in, out, len - trailing_len))
2475 written_len += len - trailing_len;
2476 in += len - trailing_len;
2479 /* Handle any trailing partial block */
2481 memcpy(buf, in, trailing_len);
2482 *buf_len = trailing_len;
2488 * First of all empty the buffer of any partial block that we might
2489 * have been provided - both for data and AAD
2491 if (octx->data_buf_len) {
2493 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2494 octx->data_buf_len))
2497 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2498 octx->data_buf_len))
2501 written_len = octx->data_buf_len;
2502 octx->data_buf_len = 0;
2504 if (octx->aad_buf_len) {
2505 if (!CRYPTO_ocb128_aad
2506 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2508 octx->aad_buf_len = 0;
2510 /* If decrypting then verify */
2511 if (!ctx->encrypt) {
2512 if (octx->taglen < 0)
2514 if (CRYPTO_ocb128_finish(&octx->ocb,
2515 octx->tag, octx->taglen) != 0)
2520 /* If encrypting then just get the tag */
2521 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2523 /* Don't reuse the IV */
2529 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2531 EVP_AES_OCB_CTX *octx = c->cipher_data;
2532 CRYPTO_ocb128_cleanup(&octx->ocb);
2536 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2537 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2538 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2539 # endif /* OPENSSL_NO_OCB */