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/evp.h>
54 # include <openssl/err.h>
57 # include <openssl/aes.h>
58 # include "evp_locl.h"
59 # include "modes_lcl.h"
60 # include <openssl/rand.h>
78 } ks; /* AES key schedule to use */
79 int key_set; /* Set if key initialised */
80 int iv_set; /* Set if an iv is set */
82 unsigned char *iv; /* Temporary IV store */
83 int ivlen; /* IV length */
85 int iv_gen; /* It is OK to generate IVs */
86 int tls_aad_len; /* TLS AAD length */
94 } ks1, ks2; /* AES key schedules to use */
96 void (*stream) (const unsigned char *in,
97 unsigned char *out, size_t length,
98 const AES_KEY *key1, const AES_KEY *key2,
99 const unsigned char iv[16]);
106 } ks; /* AES key schedule to use */
107 int key_set; /* Set if key initialised */
108 int iv_set; /* Set if an iv is set */
109 int tag_set; /* Set if tag is valid */
110 int len_set; /* Set if message length set */
111 int L, M; /* L and M parameters from RFC3610 */
116 # ifndef OPENSSL_NO_OCB
118 AES_KEY ksenc; /* AES key schedule to use for encryption */
119 AES_KEY ksdec; /* AES key schedule to use for decryption */
120 int key_set; /* Set if key initialised */
121 int iv_set; /* Set if an iv is set */
123 unsigned char *iv; /* Temporary IV store */
124 unsigned char tag[16];
125 unsigned char data_buf[16]; /* Store partial data blocks */
126 unsigned char aad_buf[16]; /* Store partial AAD blocks */
129 int ivlen; /* IV length */
134 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
137 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
139 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
142 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
144 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
147 void vpaes_cbc_encrypt(const unsigned char *in,
150 const AES_KEY *key, unsigned char *ivec, int enc);
153 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
154 size_t length, const AES_KEY *key,
155 unsigned char ivec[16], int enc);
156 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
157 size_t len, const AES_KEY *key,
158 const unsigned char ivec[16]);
159 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
160 size_t len, const AES_KEY *key1,
161 const AES_KEY *key2, const unsigned char iv[16]);
162 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
163 size_t len, const AES_KEY *key1,
164 const AES_KEY *key2, const unsigned char iv[16]);
167 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
168 size_t blocks, const AES_KEY *key,
169 const unsigned char ivec[AES_BLOCK_SIZE]);
172 void AES_xts_encrypt(const char *inp, char *out, size_t len,
173 const AES_KEY *key1, const AES_KEY *key2,
174 const unsigned char iv[16]);
175 void AES_xts_decrypt(const char *inp, char *out, size_t len,
176 const AES_KEY *key1, const AES_KEY *key2,
177 const unsigned char iv[16]);
180 # if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
181 # include "ppc_arch.h"
183 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
185 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
186 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
187 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
188 # define HWAES_encrypt aes_p8_encrypt
189 # define HWAES_decrypt aes_p8_decrypt
190 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
191 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
194 # if defined(AES_ASM) && !defined(I386_ONLY) && ( \
195 ((defined(__i386) || defined(__i386__) || \
196 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
197 defined(__x86_64) || defined(__x86_64__) || \
198 defined(_M_AMD64) || defined(_M_X64) || \
201 extern unsigned int OPENSSL_ia32cap_P[];
204 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
207 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
212 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
214 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
216 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
219 void aesni_encrypt(const unsigned char *in, unsigned char *out,
221 void aesni_decrypt(const unsigned char *in, unsigned char *out,
224 void aesni_ecb_encrypt(const unsigned char *in,
226 size_t length, const AES_KEY *key, int enc);
227 void aesni_cbc_encrypt(const unsigned char *in,
230 const AES_KEY *key, unsigned char *ivec, int enc);
232 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
235 const void *key, const unsigned char *ivec);
237 void aesni_xts_encrypt(const unsigned char *in,
240 const AES_KEY *key1, const AES_KEY *key2,
241 const unsigned char iv[16]);
243 void aesni_xts_decrypt(const unsigned char *in,
246 const AES_KEY *key1, const AES_KEY *key2,
247 const unsigned char iv[16]);
249 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
253 const unsigned char ivec[16],
254 unsigned char cmac[16]);
256 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
260 const unsigned char ivec[16],
261 unsigned char cmac[16]);
263 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
264 size_t aesni_gcm_encrypt(const unsigned char *in,
267 const void *key, unsigned char ivec[16], u64 *Xi);
268 # define AES_gcm_encrypt aesni_gcm_encrypt
269 size_t aesni_gcm_decrypt(const unsigned char *in,
272 const void *key, unsigned char ivec[16], u64 *Xi);
273 # define AES_gcm_decrypt aesni_gcm_decrypt
274 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
276 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
277 gctx->gcm.ghash==gcm_ghash_avx)
278 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
279 gctx->gcm.ghash==gcm_ghash_avx)
280 # undef AES_GCM_ASM2 /* minor size optimization */
283 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
284 const unsigned char *iv, int enc)
287 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
289 mode = ctx->cipher->flags & EVP_CIPH_MODE;
290 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
292 ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
293 dat->block = (block128_f) aesni_decrypt;
294 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
295 (cbc128_f) aesni_cbc_encrypt : NULL;
297 ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
298 dat->block = (block128_f) aesni_encrypt;
299 if (mode == EVP_CIPH_CBC_MODE)
300 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
301 else if (mode == EVP_CIPH_CTR_MODE)
302 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
304 dat->stream.cbc = NULL;
308 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
315 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
316 const unsigned char *in, size_t len)
318 aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
323 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
324 const unsigned char *in, size_t len)
326 size_t bl = ctx->cipher->block_size;
331 aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
336 # define aesni_ofb_cipher aes_ofb_cipher
337 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
338 const unsigned char *in, size_t len);
340 # define aesni_cfb_cipher aes_cfb_cipher
341 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
342 const unsigned char *in, size_t len);
344 # define aesni_cfb8_cipher aes_cfb8_cipher
345 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
346 const unsigned char *in, size_t len);
348 # define aesni_cfb1_cipher aes_cfb1_cipher
349 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
350 const unsigned char *in, size_t len);
352 # define aesni_ctr_cipher aes_ctr_cipher
353 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
354 const unsigned char *in, size_t len);
356 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
357 const unsigned char *iv, int enc)
359 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
363 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
364 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
365 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
367 * If we have an iv can set it directly, otherwise use saved IV.
369 if (iv == NULL && gctx->iv_set)
372 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
377 /* If key set use IV, otherwise copy */
379 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
381 memcpy(gctx->iv, iv, gctx->ivlen);
388 # define aesni_gcm_cipher aes_gcm_cipher
389 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
390 const unsigned char *in, size_t len);
392 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
393 const unsigned char *iv, int enc)
395 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
400 /* key_len is two AES keys */
402 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
403 xctx->xts.block1 = (block128_f) aesni_encrypt;
404 xctx->stream = aesni_xts_encrypt;
406 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
407 xctx->xts.block1 = (block128_f) aesni_decrypt;
408 xctx->stream = aesni_xts_decrypt;
411 aesni_set_encrypt_key(key + ctx->key_len / 2,
412 ctx->key_len * 4, &xctx->ks2.ks);
413 xctx->xts.block2 = (block128_f) aesni_encrypt;
415 xctx->xts.key1 = &xctx->ks1;
419 xctx->xts.key2 = &xctx->ks2;
420 memcpy(ctx->iv, iv, 16);
426 # define aesni_xts_cipher aes_xts_cipher
427 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
428 const unsigned char *in, size_t len);
430 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
431 const unsigned char *iv, int enc)
433 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
437 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
438 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
439 &cctx->ks, (block128_f) aesni_encrypt);
440 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
441 (ccm128_f) aesni_ccm64_decrypt_blocks;
445 memcpy(ctx->iv, iv, 15 - cctx->L);
451 # define aesni_ccm_cipher aes_ccm_cipher
452 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
453 const unsigned char *in, size_t len);
455 # ifndef OPENSSL_NO_OCB
456 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
457 const unsigned char *iv, int enc)
459 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
465 * We set both the encrypt and decrypt key here because decrypt
466 * needs both. We could possibly optimise to remove setting the
467 * decrypt for an encryption operation.
469 aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
470 aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
471 if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
472 (block128_f) aesni_encrypt,
473 (block128_f) aesni_decrypt))
479 * If we have an iv we can set it directly, otherwise use saved IV.
481 if (iv == NULL && octx->iv_set)
484 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
491 /* If key set use IV, otherwise copy */
493 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
495 memcpy(octx->iv, iv, octx->ivlen);
501 # define aesni_ocb_cipher aes_ocb_cipher
502 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
503 const unsigned char *in, size_t len);
504 # endif /* OPENSSL_NO_OCB */
506 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
507 static const EVP_CIPHER aesni_##keylen##_##mode = { \
508 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
509 flags|EVP_CIPH_##MODE##_MODE, \
511 aesni_##mode##_cipher, \
513 sizeof(EVP_AES_KEY), \
514 NULL,NULL,NULL,NULL }; \
515 static const EVP_CIPHER aes_##keylen##_##mode = { \
516 nid##_##keylen##_##nmode,blocksize, \
518 flags|EVP_CIPH_##MODE##_MODE, \
520 aes_##mode##_cipher, \
522 sizeof(EVP_AES_KEY), \
523 NULL,NULL,NULL,NULL }; \
524 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
525 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
527 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
528 static const EVP_CIPHER aesni_##keylen##_##mode = { \
529 nid##_##keylen##_##mode,blocksize, \
530 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
531 flags|EVP_CIPH_##MODE##_MODE, \
532 aesni_##mode##_init_key, \
533 aesni_##mode##_cipher, \
534 aes_##mode##_cleanup, \
535 sizeof(EVP_AES_##MODE##_CTX), \
536 NULL,NULL,aes_##mode##_ctrl,NULL }; \
537 static const EVP_CIPHER aes_##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 aes_##mode##_init_key, \
542 aes_##mode##_cipher, \
543 aes_##mode##_cleanup, \
544 sizeof(EVP_AES_##MODE##_CTX), \
545 NULL,NULL,aes_##mode##_ctrl,NULL }; \
546 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
547 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
549 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
551 # include "sparc_arch.h"
553 extern unsigned int OPENSSL_sparcv9cap_P[];
555 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
557 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
558 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
559 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
561 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
564 * Key-length specific subroutines were chosen for following reason.
565 * Each SPARC T4 core can execute up to 8 threads which share core's
566 * resources. Loading as much key material to registers allows to
567 * minimize references to shared memory interface, as well as amount
568 * of instructions in inner loops [much needed on T4]. But then having
569 * non-key-length specific routines would require conditional branches
570 * either in inner loops or on subroutines' entries. Former is hardly
571 * acceptable, while latter means code size increase to size occupied
572 * by multiple key-length specfic subroutines, so why fight?
574 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
575 size_t len, const AES_KEY *key,
576 unsigned char *ivec);
577 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
578 size_t len, const AES_KEY *key,
579 unsigned char *ivec);
580 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
581 size_t len, const AES_KEY *key,
582 unsigned char *ivec);
583 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
584 size_t len, const AES_KEY *key,
585 unsigned char *ivec);
586 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
587 size_t len, const AES_KEY *key,
588 unsigned char *ivec);
589 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
590 size_t len, const AES_KEY *key,
591 unsigned char *ivec);
592 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
593 size_t blocks, const AES_KEY *key,
594 unsigned char *ivec);
595 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
596 size_t blocks, const AES_KEY *key,
597 unsigned char *ivec);
598 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
599 size_t blocks, const AES_KEY *key,
600 unsigned char *ivec);
601 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
602 size_t blocks, const AES_KEY *key1,
603 const AES_KEY *key2, const unsigned char *ivec);
604 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
605 size_t blocks, const AES_KEY *key1,
606 const AES_KEY *key2, const unsigned char *ivec);
607 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
608 size_t blocks, const AES_KEY *key1,
609 const AES_KEY *key2, const unsigned char *ivec);
610 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
611 size_t blocks, const AES_KEY *key1,
612 const AES_KEY *key2, const unsigned char *ivec);
614 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
615 const unsigned char *iv, int enc)
618 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
620 mode = ctx->cipher->flags & EVP_CIPH_MODE;
621 bits = ctx->key_len * 8;
622 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
625 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
626 dat->block = (block128_f) aes_t4_decrypt;
629 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
630 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
633 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
634 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
637 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
638 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
645 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
646 dat->block = (block128_f) aes_t4_encrypt;
649 if (mode == EVP_CIPH_CBC_MODE)
650 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
651 else if (mode == EVP_CIPH_CTR_MODE)
652 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
654 dat->stream.cbc = NULL;
657 if (mode == EVP_CIPH_CBC_MODE)
658 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
659 else if (mode == EVP_CIPH_CTR_MODE)
660 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
662 dat->stream.cbc = NULL;
665 if (mode == EVP_CIPH_CBC_MODE)
666 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
667 else if (mode == EVP_CIPH_CTR_MODE)
668 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
670 dat->stream.cbc = NULL;
678 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
685 # define aes_t4_cbc_cipher aes_cbc_cipher
686 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
687 const unsigned char *in, size_t len);
689 # define aes_t4_ecb_cipher aes_ecb_cipher
690 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
691 const unsigned char *in, size_t len);
693 # define aes_t4_ofb_cipher aes_ofb_cipher
694 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
695 const unsigned char *in, size_t len);
697 # define aes_t4_cfb_cipher aes_cfb_cipher
698 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
699 const unsigned char *in, size_t len);
701 # define aes_t4_cfb8_cipher aes_cfb8_cipher
702 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
703 const unsigned char *in, size_t len);
705 # define aes_t4_cfb1_cipher aes_cfb1_cipher
706 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
707 const unsigned char *in, size_t len);
709 # define aes_t4_ctr_cipher aes_ctr_cipher
710 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
711 const unsigned char *in, size_t len);
713 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
714 const unsigned char *iv, int enc)
716 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
720 int bits = ctx->key_len * 8;
721 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
722 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
723 (block128_f) aes_t4_encrypt);
726 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
729 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
732 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
738 * If we have an iv can set it directly, otherwise use saved IV.
740 if (iv == NULL && gctx->iv_set)
743 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
748 /* If key set use IV, otherwise copy */
750 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
752 memcpy(gctx->iv, iv, gctx->ivlen);
759 # define aes_t4_gcm_cipher aes_gcm_cipher
760 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
761 const unsigned char *in, size_t len);
763 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
764 const unsigned char *iv, int enc)
766 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
771 int bits = ctx->key_len * 4;
773 /* key_len is two AES keys */
775 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
776 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
779 xctx->stream = aes128_t4_xts_encrypt;
783 xctx->stream = aes192_t4_xts_encrypt;
787 xctx->stream = aes256_t4_xts_encrypt;
793 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
794 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
797 xctx->stream = aes128_t4_xts_decrypt;
801 xctx->stream = aes192_t4_xts_decrypt;
805 xctx->stream = aes256_t4_xts_decrypt;
812 aes_t4_set_encrypt_key(key + ctx->key_len / 2,
813 ctx->key_len * 4, &xctx->ks2.ks);
814 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
816 xctx->xts.key1 = &xctx->ks1;
820 xctx->xts.key2 = &xctx->ks2;
821 memcpy(ctx->iv, iv, 16);
827 # define aes_t4_xts_cipher aes_xts_cipher
828 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
829 const unsigned char *in, size_t len);
831 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
832 const unsigned char *iv, int enc)
834 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
838 int bits = ctx->key_len * 8;
839 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
840 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
841 &cctx->ks, (block128_f) aes_t4_encrypt);
845 cctx->str = enc ? (ccm128_f) aes128_t4_ccm64_encrypt :
846 (ccm128_f) ae128_t4_ccm64_decrypt;
849 cctx->str = enc ? (ccm128_f) aes192_t4_ccm64_encrypt :
850 (ccm128_f) ae192_t4_ccm64_decrypt;
853 cctx->str = enc ? (ccm128_f) aes256_t4_ccm64_encrypt :
854 (ccm128_f) ae256_t4_ccm64_decrypt;
863 memcpy(ctx->iv, iv, 15 - cctx->L);
869 # define aes_t4_ccm_cipher aes_ccm_cipher
870 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
871 const unsigned char *in, size_t len);
873 # ifndef OPENSSL_NO_OCB
874 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
875 const unsigned char *iv, int enc)
877 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
883 * We set both the encrypt and decrypt key here because decrypt
884 * needs both. We could possibly optimise to remove setting the
885 * decrypt for an encryption operation.
887 aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
888 aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
889 if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
890 (block128_f) aes_t4_encrypt,
891 (block128_f) aes_t4_decrypt))
897 * If we have an iv we can set it directly, otherwise use saved IV.
899 if (iv == NULL && octx->iv_set)
902 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
909 /* If key set use IV, otherwise copy */
911 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
913 memcpy(octx->iv, iv, octx->ivlen);
919 # define aes_t4_ocb_cipher aes_ocb_cipher
920 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
921 const unsigned char *in, size_t len);
922 # endif /* OPENSSL_NO_OCB */
924 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
925 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
926 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
927 flags|EVP_CIPH_##MODE##_MODE, \
929 aes_t4_##mode##_cipher, \
931 sizeof(EVP_AES_KEY), \
932 NULL,NULL,NULL,NULL }; \
933 static const EVP_CIPHER aes_##keylen##_##mode = { \
934 nid##_##keylen##_##nmode,blocksize, \
936 flags|EVP_CIPH_##MODE##_MODE, \
938 aes_##mode##_cipher, \
940 sizeof(EVP_AES_KEY), \
941 NULL,NULL,NULL,NULL }; \
942 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
943 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
945 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
946 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
947 nid##_##keylen##_##mode,blocksize, \
948 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
949 flags|EVP_CIPH_##MODE##_MODE, \
950 aes_t4_##mode##_init_key, \
951 aes_t4_##mode##_cipher, \
952 aes_##mode##_cleanup, \
953 sizeof(EVP_AES_##MODE##_CTX), \
954 NULL,NULL,aes_##mode##_ctrl,NULL }; \
955 static const EVP_CIPHER aes_##keylen##_##mode = { \
956 nid##_##keylen##_##mode,blocksize, \
957 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
958 flags|EVP_CIPH_##MODE##_MODE, \
959 aes_##mode##_init_key, \
960 aes_##mode##_cipher, \
961 aes_##mode##_cleanup, \
962 sizeof(EVP_AES_##MODE##_CTX), \
963 NULL,NULL,aes_##mode##_ctrl,NULL }; \
964 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
965 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
969 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
970 static const EVP_CIPHER aes_##keylen##_##mode = { \
971 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
972 flags|EVP_CIPH_##MODE##_MODE, \
974 aes_##mode##_cipher, \
976 sizeof(EVP_AES_KEY), \
977 NULL,NULL,NULL,NULL }; \
978 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
979 { return &aes_##keylen##_##mode; }
981 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
982 static const EVP_CIPHER aes_##keylen##_##mode = { \
983 nid##_##keylen##_##mode,blocksize, \
984 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
985 flags|EVP_CIPH_##MODE##_MODE, \
986 aes_##mode##_init_key, \
987 aes_##mode##_cipher, \
988 aes_##mode##_cleanup, \
989 sizeof(EVP_AES_##MODE##_CTX), \
990 NULL,NULL,aes_##mode##_ctrl,NULL }; \
991 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
992 { return &aes_##keylen##_##mode; }
996 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
997 # include "arm_arch.h"
998 # if __ARM_MAX_ARCH__>=7
999 # if defined(BSAES_ASM)
1000 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1002 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
1003 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
1004 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
1005 # define HWAES_encrypt aes_v8_encrypt
1006 # define HWAES_decrypt aes_v8_decrypt
1007 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
1008 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1012 # if defined(HWAES_CAPABLE)
1013 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1015 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1017 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1018 const AES_KEY *key);
1019 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1020 const AES_KEY *key);
1021 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1022 size_t length, const AES_KEY *key,
1023 unsigned char *ivec, const int enc);
1024 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1025 size_t len, const AES_KEY *key,
1026 const unsigned char ivec[16]);
1029 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1030 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1031 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1032 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1033 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1034 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1035 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1036 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1038 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1039 const unsigned char *iv, int enc)
1042 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1044 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1045 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1047 # ifdef HWAES_CAPABLE
1048 if (HWAES_CAPABLE) {
1049 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1050 dat->block = (block128_f) HWAES_decrypt;
1051 dat->stream.cbc = NULL;
1052 # ifdef HWAES_cbc_encrypt
1053 if (mode == EVP_CIPH_CBC_MODE)
1054 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1058 # ifdef BSAES_CAPABLE
1059 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
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 = (cbc128_f) bsaes_cbc_encrypt;
1065 # ifdef VPAES_CAPABLE
1066 if (VPAES_CAPABLE) {
1067 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1068 dat->block = (block128_f) vpaes_decrypt;
1069 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1070 (cbc128_f) vpaes_cbc_encrypt : NULL;
1074 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1075 dat->block = (block128_f) AES_decrypt;
1076 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1077 (cbc128_f) AES_cbc_encrypt : NULL;
1079 # ifdef HWAES_CAPABLE
1080 if (HWAES_CAPABLE) {
1081 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1082 dat->block = (block128_f) HWAES_encrypt;
1083 dat->stream.cbc = NULL;
1084 # ifdef HWAES_cbc_encrypt
1085 if (mode == EVP_CIPH_CBC_MODE)
1086 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1089 # ifdef HWAES_ctr32_encrypt_blocks
1090 if (mode == EVP_CIPH_CTR_MODE)
1091 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1094 (void)0; /* terminate potentially open 'else' */
1097 # ifdef BSAES_CAPABLE
1098 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1099 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1100 dat->block = (block128_f) AES_encrypt;
1101 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1104 # ifdef VPAES_CAPABLE
1105 if (VPAES_CAPABLE) {
1106 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1107 dat->block = (block128_f) vpaes_encrypt;
1108 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1109 (cbc128_f) vpaes_cbc_encrypt : NULL;
1113 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1114 dat->block = (block128_f) AES_encrypt;
1115 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1116 (cbc128_f) AES_cbc_encrypt : NULL;
1118 if (mode == EVP_CIPH_CTR_MODE)
1119 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1124 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1131 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1132 const unsigned char *in, size_t len)
1134 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1136 if (dat->stream.cbc)
1137 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1138 else if (ctx->encrypt)
1139 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1141 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1146 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1147 const unsigned char *in, size_t len)
1149 size_t bl = ctx->cipher->block_size;
1151 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1156 for (i = 0, len -= bl; i <= len; i += bl)
1157 (*dat->block) (in + i, out + i, &dat->ks);
1162 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1163 const unsigned char *in, size_t len)
1165 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1167 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1168 ctx->iv, &ctx->num, dat->block);
1172 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1173 const unsigned char *in, size_t len)
1175 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1177 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1178 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1182 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1183 const unsigned char *in, size_t len)
1185 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1187 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1188 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1192 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1193 const unsigned char *in, size_t len)
1195 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1197 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1198 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1199 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1203 while (len >= MAXBITCHUNK) {
1204 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1205 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1209 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1210 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1215 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1216 const unsigned char *in, size_t len)
1218 unsigned int num = ctx->num;
1219 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1221 if (dat->stream.ctr)
1222 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1223 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1225 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1226 ctx->iv, ctx->buf, &num, dat->block);
1227 ctx->num = (size_t)num;
1231 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1232 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1233 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1235 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1237 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1238 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1239 if (gctx->iv != c->iv)
1240 OPENSSL_free(gctx->iv);
1244 /* increment counter (64-bit int) by 1 */
1245 static void ctr64_inc(unsigned char *counter)
1260 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1262 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1267 gctx->ivlen = c->cipher->iv_len;
1271 gctx->tls_aad_len = -1;
1274 case EVP_CTRL_AEAD_SET_IVLEN:
1277 /* Allocate memory for IV if needed */
1278 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1279 if (gctx->iv != c->iv)
1280 OPENSSL_free(gctx->iv);
1281 gctx->iv = OPENSSL_malloc(arg);
1288 case EVP_CTRL_AEAD_SET_TAG:
1289 if (arg <= 0 || arg > 16 || c->encrypt)
1291 memcpy(c->buf, ptr, arg);
1295 case EVP_CTRL_AEAD_GET_TAG:
1296 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1298 memcpy(ptr, c->buf, arg);
1301 case EVP_CTRL_GCM_SET_IV_FIXED:
1302 /* Special case: -1 length restores whole IV */
1304 memcpy(gctx->iv, ptr, gctx->ivlen);
1309 * Fixed field must be at least 4 bytes and invocation field at least
1312 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1315 memcpy(gctx->iv, ptr, arg);
1316 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1321 case EVP_CTRL_GCM_IV_GEN:
1322 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1324 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1325 if (arg <= 0 || arg > gctx->ivlen)
1327 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1329 * Invocation field will be at least 8 bytes in size and so no need
1330 * to check wrap around or increment more than last 8 bytes.
1332 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1336 case EVP_CTRL_GCM_SET_IV_INV:
1337 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1339 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1340 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1344 case EVP_CTRL_AEAD_TLS1_AAD:
1345 /* Save the AAD for later use */
1348 memcpy(c->buf, ptr, arg);
1349 gctx->tls_aad_len = arg;
1351 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1352 /* Correct length for explicit IV */
1353 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1354 /* If decrypting correct for tag too */
1356 len -= EVP_GCM_TLS_TAG_LEN;
1357 c->buf[arg - 2] = len >> 8;
1358 c->buf[arg - 1] = len & 0xff;
1360 /* Extra padding: tag appended to record */
1361 return EVP_GCM_TLS_TAG_LEN;
1365 EVP_CIPHER_CTX *out = ptr;
1366 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1367 if (gctx->gcm.key) {
1368 if (gctx->gcm.key != &gctx->ks)
1370 gctx_out->gcm.key = &gctx_out->ks;
1372 if (gctx->iv == c->iv)
1373 gctx_out->iv = out->iv;
1375 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1378 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1389 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1390 const unsigned char *iv, int enc)
1392 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1397 # ifdef HWAES_CAPABLE
1398 if (HWAES_CAPABLE) {
1399 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1400 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1401 (block128_f) HWAES_encrypt);
1402 # ifdef HWAES_ctr32_encrypt_blocks
1403 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1410 # ifdef BSAES_CAPABLE
1411 if (BSAES_CAPABLE) {
1412 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1413 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1414 (block128_f) AES_encrypt);
1415 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1419 # ifdef VPAES_CAPABLE
1420 if (VPAES_CAPABLE) {
1421 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1422 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1423 (block128_f) vpaes_encrypt);
1428 (void)0; /* terminate potentially open 'else' */
1430 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1431 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1432 (block128_f) AES_encrypt);
1434 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1441 * If we have an iv can set it directly, otherwise use saved IV.
1443 if (iv == NULL && gctx->iv_set)
1446 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1451 /* If key set use IV, otherwise copy */
1453 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1455 memcpy(gctx->iv, iv, gctx->ivlen);
1463 * Handle TLS GCM packet format. This consists of the last portion of the IV
1464 * followed by the payload and finally the tag. On encrypt generate IV,
1465 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1469 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1470 const unsigned char *in, size_t len)
1472 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1474 /* Encrypt/decrypt must be performed in place */
1476 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1479 * Set IV from start of buffer or generate IV and write to start of
1482 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1483 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1484 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1487 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1489 /* Fix buffer and length to point to payload */
1490 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1491 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1492 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1494 /* Encrypt payload */
1497 # if defined(AES_GCM_ASM)
1498 if (len >= 32 && AES_GCM_ASM(gctx)) {
1499 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1502 bulk = AES_gcm_encrypt(in, out, len,
1504 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1505 gctx->gcm.len.u[1] += bulk;
1508 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1511 len - bulk, gctx->ctr))
1515 # if defined(AES_GCM_ASM2)
1516 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1517 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1520 bulk = AES_gcm_encrypt(in, out, len,
1522 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1523 gctx->gcm.len.u[1] += bulk;
1526 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1527 in + bulk, out + bulk, len - bulk))
1531 /* Finally write tag */
1532 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1533 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1538 # if defined(AES_GCM_ASM)
1539 if (len >= 16 && AES_GCM_ASM(gctx)) {
1540 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1543 bulk = AES_gcm_decrypt(in, out, len,
1545 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1546 gctx->gcm.len.u[1] += bulk;
1549 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1552 len - bulk, gctx->ctr))
1556 # if defined(AES_GCM_ASM2)
1557 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1558 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1561 bulk = AES_gcm_decrypt(in, out, len,
1563 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1564 gctx->gcm.len.u[1] += bulk;
1567 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1568 in + bulk, out + bulk, len - bulk))
1572 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1573 /* If tag mismatch wipe buffer */
1574 if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1575 OPENSSL_cleanse(out, len);
1583 gctx->tls_aad_len = -1;
1587 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1588 const unsigned char *in, size_t len)
1590 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1591 /* If not set up, return error */
1595 if (gctx->tls_aad_len >= 0)
1596 return aes_gcm_tls_cipher(ctx, out, in, len);
1602 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1604 } else if (ctx->encrypt) {
1607 # if defined(AES_GCM_ASM)
1608 if (len >= 32 && AES_GCM_ASM(gctx)) {
1609 size_t res = (16 - gctx->gcm.mres) % 16;
1611 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1614 bulk = AES_gcm_encrypt(in + res,
1615 out + res, len - res,
1616 gctx->gcm.key, gctx->gcm.Yi.c,
1618 gctx->gcm.len.u[1] += bulk;
1622 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1625 len - bulk, gctx->ctr))
1629 # if defined(AES_GCM_ASM2)
1630 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1631 size_t res = (16 - gctx->gcm.mres) % 16;
1633 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1636 bulk = AES_gcm_encrypt(in + res,
1637 out + res, len - res,
1638 gctx->gcm.key, gctx->gcm.Yi.c,
1640 gctx->gcm.len.u[1] += bulk;
1644 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1645 in + bulk, out + bulk, len - bulk))
1651 # if defined(AES_GCM_ASM)
1652 if (len >= 16 && AES_GCM_ASM(gctx)) {
1653 size_t res = (16 - gctx->gcm.mres) % 16;
1655 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1658 bulk = AES_gcm_decrypt(in + res,
1659 out + res, len - res,
1661 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1662 gctx->gcm.len.u[1] += bulk;
1666 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1669 len - bulk, gctx->ctr))
1673 # if defined(AES_GCM_ASM2)
1674 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1675 size_t res = (16 - gctx->gcm.mres) % 16;
1677 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1680 bulk = AES_gcm_decrypt(in + res,
1681 out + res, len - res,
1683 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1684 gctx->gcm.len.u[1] += bulk;
1688 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1689 in + bulk, out + bulk, len - bulk))
1695 if (!ctx->encrypt) {
1696 if (gctx->taglen < 0)
1698 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1703 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1705 /* Don't reuse the IV */
1712 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1713 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1714 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1715 | EVP_CIPH_CUSTOM_COPY)
1717 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1718 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1719 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1720 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1721 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1722 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1724 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1726 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1727 if (type == EVP_CTRL_COPY) {
1728 EVP_CIPHER_CTX *out = ptr;
1729 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1730 if (xctx->xts.key1) {
1731 if (xctx->xts.key1 != &xctx->ks1)
1733 xctx_out->xts.key1 = &xctx_out->ks1;
1735 if (xctx->xts.key2) {
1736 if (xctx->xts.key2 != &xctx->ks2)
1738 xctx_out->xts.key2 = &xctx_out->ks2;
1741 } else if (type != EVP_CTRL_INIT)
1743 /* key1 and key2 are used as an indicator both key and IV are set */
1744 xctx->xts.key1 = NULL;
1745 xctx->xts.key2 = NULL;
1749 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1750 const unsigned char *iv, int enc)
1752 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1759 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1761 xctx->stream = NULL;
1763 /* key_len is two AES keys */
1764 # ifdef HWAES_CAPABLE
1765 if (HWAES_CAPABLE) {
1767 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1769 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1771 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1773 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1776 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1777 ctx->key_len * 4, &xctx->ks2.ks);
1778 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1780 xctx->xts.key1 = &xctx->ks1;
1784 # ifdef BSAES_CAPABLE
1786 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1789 # ifdef VPAES_CAPABLE
1790 if (VPAES_CAPABLE) {
1792 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1794 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1796 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1798 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1801 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1802 ctx->key_len * 4, &xctx->ks2.ks);
1803 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1805 xctx->xts.key1 = &xctx->ks1;
1809 (void)0; /* terminate potentially open 'else' */
1812 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1813 xctx->xts.block1 = (block128_f) AES_encrypt;
1815 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1816 xctx->xts.block1 = (block128_f) AES_decrypt;
1819 AES_set_encrypt_key(key + ctx->key_len / 2,
1820 ctx->key_len * 4, &xctx->ks2.ks);
1821 xctx->xts.block2 = (block128_f) AES_encrypt;
1823 xctx->xts.key1 = &xctx->ks1;
1827 xctx->xts.key2 = &xctx->ks2;
1828 memcpy(ctx->iv, iv, 16);
1834 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1835 const unsigned char *in, size_t len)
1837 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1838 if (!xctx->xts.key1 || !xctx->xts.key2)
1840 if (!out || !in || len < AES_BLOCK_SIZE)
1843 (*xctx->stream) (in, out, len,
1844 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1845 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1851 # define aes_xts_cleanup NULL
1853 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1854 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1855 | EVP_CIPH_CUSTOM_COPY)
1857 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1858 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1860 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1862 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1873 case EVP_CTRL_AEAD_SET_IVLEN:
1875 case EVP_CTRL_CCM_SET_L:
1876 if (arg < 2 || arg > 8)
1881 case EVP_CTRL_AEAD_SET_TAG:
1882 if ((arg & 1) || arg < 4 || arg > 16)
1884 if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
1888 memcpy(c->buf, ptr, arg);
1893 case EVP_CTRL_AEAD_GET_TAG:
1894 if (!c->encrypt || !cctx->tag_set)
1896 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1905 EVP_CIPHER_CTX *out = ptr;
1906 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1907 if (cctx->ccm.key) {
1908 if (cctx->ccm.key != &cctx->ks)
1910 cctx_out->ccm.key = &cctx_out->ks;
1921 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1922 const unsigned char *iv, int enc)
1924 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1929 # ifdef HWAES_CAPABLE
1930 if (HWAES_CAPABLE) {
1931 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1933 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1934 &cctx->ks, (block128_f) HWAES_encrypt);
1940 # ifdef VPAES_CAPABLE
1941 if (VPAES_CAPABLE) {
1942 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1943 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1944 &cctx->ks, (block128_f) vpaes_encrypt);
1950 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1951 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1952 &cctx->ks, (block128_f) AES_encrypt);
1957 memcpy(ctx->iv, iv, 15 - cctx->L);
1963 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1964 const unsigned char *in, size_t len)
1966 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1967 CCM128_CONTEXT *ccm = &cctx->ccm;
1968 /* If not set up, return error */
1969 if (!cctx->iv_set && !cctx->key_set)
1971 if (!ctx->encrypt && !cctx->tag_set)
1975 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1980 /* If have AAD need message length */
1981 if (!cctx->len_set && len)
1983 CRYPTO_ccm128_aad(ccm, in, len);
1986 /* EVP_*Final() doesn't return any data */
1989 /* If not set length yet do it */
1990 if (!cctx->len_set) {
1991 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1996 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1998 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2004 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2006 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2007 unsigned char tag[16];
2008 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2009 if (!memcmp(tag, ctx->buf, cctx->M))
2014 OPENSSL_cleanse(out, len);
2023 # define aes_ccm_cleanup NULL
2025 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2026 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2027 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2034 /* Indicates if IV has been set */
2038 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2039 const unsigned char *iv, int enc)
2041 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2046 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2048 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2053 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2059 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2060 const unsigned char *in, size_t inlen)
2062 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2064 /* AES wrap with padding has IV length of 4, without padding 8 */
2065 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2066 /* No final operation so always return zero length */
2069 /* Input length must always be non-zero */
2072 /* If decrypting need at least 16 bytes and multiple of 8 */
2073 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2075 /* If not padding input must be multiple of 8 */
2076 if (!pad && inlen & 0x7)
2080 /* If padding round up to multiple of 8 */
2082 inlen = (inlen + 7) / 8 * 8;
2087 * If not padding output will be exactly 8 bytes smaller than
2088 * input. If padding it will be at least 8 bytes smaller but we
2089 * don't know how much.
2096 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2098 (block128_f) AES_encrypt);
2100 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2102 (block128_f) AES_decrypt);
2105 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2106 out, in, inlen, (block128_f) AES_encrypt);
2108 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2109 out, in, inlen, (block128_f) AES_decrypt);
2111 return rv ? (int)rv : -1;
2114 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2115 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2116 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2118 static const EVP_CIPHER aes_128_wrap = {
2120 8, 16, 8, WRAP_FLAGS,
2121 aes_wrap_init_key, aes_wrap_cipher,
2123 sizeof(EVP_AES_WRAP_CTX),
2124 NULL, NULL, NULL, NULL
2127 const EVP_CIPHER *EVP_aes_128_wrap(void)
2129 return &aes_128_wrap;
2132 static const EVP_CIPHER aes_192_wrap = {
2134 8, 24, 8, WRAP_FLAGS,
2135 aes_wrap_init_key, aes_wrap_cipher,
2137 sizeof(EVP_AES_WRAP_CTX),
2138 NULL, NULL, NULL, NULL
2141 const EVP_CIPHER *EVP_aes_192_wrap(void)
2143 return &aes_192_wrap;
2146 static const EVP_CIPHER aes_256_wrap = {
2148 8, 32, 8, WRAP_FLAGS,
2149 aes_wrap_init_key, aes_wrap_cipher,
2151 sizeof(EVP_AES_WRAP_CTX),
2152 NULL, NULL, NULL, NULL
2155 const EVP_CIPHER *EVP_aes_256_wrap(void)
2157 return &aes_256_wrap;
2160 static const EVP_CIPHER aes_128_wrap_pad = {
2161 NID_id_aes128_wrap_pad,
2162 8, 16, 4, WRAP_FLAGS,
2163 aes_wrap_init_key, aes_wrap_cipher,
2165 sizeof(EVP_AES_WRAP_CTX),
2166 NULL, NULL, NULL, NULL
2169 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2171 return &aes_128_wrap_pad;
2174 static const EVP_CIPHER aes_192_wrap_pad = {
2175 NID_id_aes192_wrap_pad,
2176 8, 24, 4, WRAP_FLAGS,
2177 aes_wrap_init_key, aes_wrap_cipher,
2179 sizeof(EVP_AES_WRAP_CTX),
2180 NULL, NULL, NULL, NULL
2183 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2185 return &aes_192_wrap_pad;
2188 static const EVP_CIPHER aes_256_wrap_pad = {
2189 NID_id_aes256_wrap_pad,
2190 8, 32, 4, WRAP_FLAGS,
2191 aes_wrap_init_key, aes_wrap_cipher,
2193 sizeof(EVP_AES_WRAP_CTX),
2194 NULL, NULL, NULL, NULL
2197 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2199 return &aes_256_wrap_pad;
2202 # ifndef OPENSSL_NO_OCB
2203 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2205 EVP_AES_OCB_CTX *octx = c->cipher_data;
2206 EVP_CIPHER_CTX *newc;
2207 EVP_AES_OCB_CTX *new_octx;
2213 octx->ivlen = c->cipher->iv_len;
2216 octx->data_buf_len = 0;
2217 octx->aad_buf_len = 0;
2220 case EVP_CTRL_AEAD_SET_IVLEN:
2221 /* IV len must be 1 to 15 */
2222 if (arg <= 0 || arg > 15)
2228 case EVP_CTRL_AEAD_SET_TAG:
2230 /* Tag len must be 0 to 16 */
2231 if (arg < 0 || arg > 16)
2237 if (arg != octx->taglen || c->encrypt)
2239 memcpy(octx->tag, ptr, arg);
2242 case EVP_CTRL_AEAD_GET_TAG:
2243 if (arg != octx->taglen || !c->encrypt)
2246 memcpy(ptr, octx->tag, arg);
2250 newc = (EVP_CIPHER_CTX *)ptr;
2251 new_octx = newc->cipher_data;
2252 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2253 &new_octx->ksenc, &new_octx->ksdec);
2261 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2262 const unsigned char *iv, int enc)
2264 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2270 * We set both the encrypt and decrypt key here because decrypt
2271 * needs both. We could possibly optimise to remove setting the
2272 * decrypt for an encryption operation.
2274 # ifdef VPAES_CAPABLE
2275 if (VPAES_CAPABLE) {
2276 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
2277 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
2278 if (!CRYPTO_ocb128_init
2279 (&octx->ocb, &octx->ksenc, &octx->ksdec,
2280 (block128_f) vpaes_encrypt, (block128_f) vpaes_decrypt))
2285 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
2286 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
2287 if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
2288 (block128_f) AES_encrypt,
2289 (block128_f) AES_decrypt))
2295 * If we have an iv we can set it directly, otherwise use saved IV.
2297 if (iv == NULL && octx->iv_set)
2300 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2307 /* If key set use IV, otherwise copy */
2309 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2311 memcpy(octx->iv, iv, octx->ivlen);
2317 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2318 const unsigned char *in, size_t len)
2322 int written_len = 0;
2323 size_t trailing_len;
2324 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2326 /* If IV or Key not set then return error */
2335 * Need to ensure we are only passing full blocks to low level OCB
2336 * routines. We do it here rather than in EVP_EncryptUpdate/
2337 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2338 * and those routines don't support that
2341 /* Are we dealing with AAD or normal data here? */
2343 buf = octx->aad_buf;
2344 buf_len = &(octx->aad_buf_len);
2346 buf = octx->data_buf;
2347 buf_len = &(octx->data_buf_len);
2351 * If we've got a partially filled buffer from a previous call then
2352 * use that data first
2355 unsigned int remaining;
2357 remaining = 16 - (*buf_len);
2358 if (remaining > len) {
2359 memcpy(buf + (*buf_len), in, len);
2363 memcpy(buf + (*buf_len), in, remaining);
2366 * If we get here we've filled the buffer, so process it
2371 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2373 } else if (ctx->encrypt) {
2374 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2377 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2384 /* Do we have a partial block to handle at the end? */
2385 trailing_len = len % 16;
2388 * If we've got some full blocks to handle, then process these first
2390 if (len != trailing_len) {
2392 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2394 } else if (ctx->encrypt) {
2395 if (!CRYPTO_ocb128_encrypt
2396 (&octx->ocb, in, out, len - trailing_len))
2399 if (!CRYPTO_ocb128_decrypt
2400 (&octx->ocb, in, out, len - trailing_len))
2403 written_len += len - trailing_len;
2404 in += len - trailing_len;
2407 /* Handle any trailing partial block */
2409 memcpy(buf, in, trailing_len);
2410 *buf_len = trailing_len;
2416 * First of all empty the buffer of any partial block that we might
2417 * have been provided - both for data and AAD
2419 if (octx->data_buf_len) {
2421 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2422 octx->data_buf_len))
2425 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2426 octx->data_buf_len))
2429 written_len = octx->data_buf_len;
2430 octx->data_buf_len = 0;
2432 if (octx->aad_buf_len) {
2433 if (!CRYPTO_ocb128_aad
2434 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2436 octx->aad_buf_len = 0;
2438 /* If decrypting then verify */
2439 if (!ctx->encrypt) {
2440 if (octx->taglen < 0)
2442 if (CRYPTO_ocb128_finish(&octx->ocb,
2443 octx->tag, octx->taglen) != 0)
2448 /* If encrypting then just get the tag */
2449 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2451 /* Don't reuse the IV */
2457 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2459 EVP_AES_OCB_CTX *octx = c->cipher_data;
2460 CRYPTO_ocb128_cleanup(&octx->ocb);
2464 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2465 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2466 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2467 # endif /* OPENSSL_NO_OCB */