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
121 } ksenc; /* AES key schedule to use for encryption */
125 } ksdec; /* AES key schedule to use for decryption */
126 int key_set; /* Set if key initialised */
127 int iv_set; /* Set if an iv is set */
129 unsigned char *iv; /* Temporary IV store */
130 unsigned char tag[16];
131 unsigned char data_buf[16]; /* Store partial data blocks */
132 unsigned char aad_buf[16]; /* Store partial AAD blocks */
135 int ivlen; /* IV length */
140 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
143 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
145 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
148 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
150 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
153 void vpaes_cbc_encrypt(const unsigned char *in,
156 const AES_KEY *key, unsigned char *ivec, int enc);
159 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
160 size_t length, const AES_KEY *key,
161 unsigned char ivec[16], int enc);
162 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
163 size_t len, const AES_KEY *key,
164 const unsigned char ivec[16]);
165 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
166 size_t len, const AES_KEY *key1,
167 const AES_KEY *key2, const unsigned char iv[16]);
168 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
169 size_t len, const AES_KEY *key1,
170 const AES_KEY *key2, const unsigned char iv[16]);
173 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
174 size_t blocks, const AES_KEY *key,
175 const unsigned char ivec[AES_BLOCK_SIZE]);
178 void AES_xts_encrypt(const char *inp, char *out, size_t len,
179 const AES_KEY *key1, const AES_KEY *key2,
180 const unsigned char iv[16]);
181 void AES_xts_decrypt(const char *inp, char *out, size_t len,
182 const AES_KEY *key1, const AES_KEY *key2,
183 const unsigned char iv[16]);
186 # if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
187 # include "ppc_arch.h"
189 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
191 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
192 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
193 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
194 # define HWAES_encrypt aes_p8_encrypt
195 # define HWAES_decrypt aes_p8_decrypt
196 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
197 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
200 # if defined(AES_ASM) && !defined(I386_ONLY) && ( \
201 ((defined(__i386) || defined(__i386__) || \
202 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
203 defined(__x86_64) || defined(__x86_64__) || \
204 defined(_M_AMD64) || defined(_M_X64) || \
207 extern unsigned int OPENSSL_ia32cap_P[];
210 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
213 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
218 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
220 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
222 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
225 void aesni_encrypt(const unsigned char *in, unsigned char *out,
227 void aesni_decrypt(const unsigned char *in, unsigned char *out,
230 void aesni_ecb_encrypt(const unsigned char *in,
232 size_t length, const AES_KEY *key, int enc);
233 void aesni_cbc_encrypt(const unsigned char *in,
236 const AES_KEY *key, unsigned char *ivec, int enc);
238 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
241 const void *key, const unsigned char *ivec);
243 void aesni_xts_encrypt(const unsigned char *in,
246 const AES_KEY *key1, const AES_KEY *key2,
247 const unsigned char iv[16]);
249 void aesni_xts_decrypt(const unsigned char *in,
252 const AES_KEY *key1, const AES_KEY *key2,
253 const unsigned char iv[16]);
255 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
259 const unsigned char ivec[16],
260 unsigned char cmac[16]);
262 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
266 const unsigned char ivec[16],
267 unsigned char cmac[16]);
269 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
270 size_t aesni_gcm_encrypt(const unsigned char *in,
273 const void *key, unsigned char ivec[16], u64 *Xi);
274 # define AES_gcm_encrypt aesni_gcm_encrypt
275 size_t aesni_gcm_decrypt(const unsigned char *in,
278 const void *key, unsigned char ivec[16], u64 *Xi);
279 # define AES_gcm_decrypt aesni_gcm_decrypt
280 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
282 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
283 gctx->gcm.ghash==gcm_ghash_avx)
284 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
285 gctx->gcm.ghash==gcm_ghash_avx)
286 # undef AES_GCM_ASM2 /* minor size optimization */
289 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
290 const unsigned char *iv, int enc)
293 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
295 mode = ctx->cipher->flags & EVP_CIPH_MODE;
296 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
298 ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
299 dat->block = (block128_f) aesni_decrypt;
300 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
301 (cbc128_f) aesni_cbc_encrypt : NULL;
303 ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
304 dat->block = (block128_f) aesni_encrypt;
305 if (mode == EVP_CIPH_CBC_MODE)
306 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
307 else if (mode == EVP_CIPH_CTR_MODE)
308 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
310 dat->stream.cbc = NULL;
314 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
321 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
322 const unsigned char *in, size_t len)
324 aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
329 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
330 const unsigned char *in, size_t len)
332 size_t bl = ctx->cipher->block_size;
337 aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
342 # define aesni_ofb_cipher aes_ofb_cipher
343 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
344 const unsigned char *in, size_t len);
346 # define aesni_cfb_cipher aes_cfb_cipher
347 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
348 const unsigned char *in, size_t len);
350 # define aesni_cfb8_cipher aes_cfb8_cipher
351 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
352 const unsigned char *in, size_t len);
354 # define aesni_cfb1_cipher aes_cfb1_cipher
355 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
356 const unsigned char *in, size_t len);
358 # define aesni_ctr_cipher aes_ctr_cipher
359 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
360 const unsigned char *in, size_t len);
362 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
363 const unsigned char *iv, int enc)
365 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
369 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
370 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
371 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
373 * If we have an iv can set it directly, otherwise use saved IV.
375 if (iv == NULL && gctx->iv_set)
378 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
383 /* If key set use IV, otherwise copy */
385 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
387 memcpy(gctx->iv, iv, gctx->ivlen);
394 # define aesni_gcm_cipher aes_gcm_cipher
395 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
396 const unsigned char *in, size_t len);
398 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
399 const unsigned char *iv, int enc)
401 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
406 /* key_len is two AES keys */
408 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
409 xctx->xts.block1 = (block128_f) aesni_encrypt;
410 xctx->stream = aesni_xts_encrypt;
412 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
413 xctx->xts.block1 = (block128_f) aesni_decrypt;
414 xctx->stream = aesni_xts_decrypt;
417 aesni_set_encrypt_key(key + ctx->key_len / 2,
418 ctx->key_len * 4, &xctx->ks2.ks);
419 xctx->xts.block2 = (block128_f) aesni_encrypt;
421 xctx->xts.key1 = &xctx->ks1;
425 xctx->xts.key2 = &xctx->ks2;
426 memcpy(ctx->iv, iv, 16);
432 # define aesni_xts_cipher aes_xts_cipher
433 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
434 const unsigned char *in, size_t len);
436 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
437 const unsigned char *iv, int enc)
439 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
443 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
444 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
445 &cctx->ks, (block128_f) aesni_encrypt);
446 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
447 (ccm128_f) aesni_ccm64_decrypt_blocks;
451 memcpy(ctx->iv, iv, 15 - cctx->L);
457 # define aesni_ccm_cipher aes_ccm_cipher
458 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
459 const unsigned char *in, size_t len);
461 # ifndef OPENSSL_NO_OCB
462 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
463 const unsigned char *iv, int enc)
465 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
471 * We set both the encrypt and decrypt key here because decrypt
472 * needs both. We could possibly optimise to remove setting the
473 * decrypt for an encryption operation.
475 aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
476 aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
477 if (!CRYPTO_ocb128_init(&octx->ocb,
478 &octx->ksenc.ks, &octx->ksdec.ks,
479 (block128_f) aesni_encrypt,
480 (block128_f) aesni_decrypt))
486 * If we have an iv we can set it directly, otherwise use saved IV.
488 if (iv == NULL && octx->iv_set)
491 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
498 /* If key set use IV, otherwise copy */
500 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
502 memcpy(octx->iv, iv, octx->ivlen);
508 # define aesni_ocb_cipher aes_ocb_cipher
509 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
510 const unsigned char *in, size_t len);
511 # endif /* OPENSSL_NO_OCB */
513 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
514 static const EVP_CIPHER aesni_##keylen##_##mode = { \
515 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
516 flags|EVP_CIPH_##MODE##_MODE, \
518 aesni_##mode##_cipher, \
520 sizeof(EVP_AES_KEY), \
521 NULL,NULL,NULL,NULL }; \
522 static const EVP_CIPHER aes_##keylen##_##mode = { \
523 nid##_##keylen##_##nmode,blocksize, \
525 flags|EVP_CIPH_##MODE##_MODE, \
527 aes_##mode##_cipher, \
529 sizeof(EVP_AES_KEY), \
530 NULL,NULL,NULL,NULL }; \
531 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
532 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
534 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
535 static const EVP_CIPHER aesni_##keylen##_##mode = { \
536 nid##_##keylen##_##mode,blocksize, \
537 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
538 flags|EVP_CIPH_##MODE##_MODE, \
539 aesni_##mode##_init_key, \
540 aesni_##mode##_cipher, \
541 aes_##mode##_cleanup, \
542 sizeof(EVP_AES_##MODE##_CTX), \
543 NULL,NULL,aes_##mode##_ctrl,NULL }; \
544 static const EVP_CIPHER aes_##keylen##_##mode = { \
545 nid##_##keylen##_##mode,blocksize, \
546 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
547 flags|EVP_CIPH_##MODE##_MODE, \
548 aes_##mode##_init_key, \
549 aes_##mode##_cipher, \
550 aes_##mode##_cleanup, \
551 sizeof(EVP_AES_##MODE##_CTX), \
552 NULL,NULL,aes_##mode##_ctrl,NULL }; \
553 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
554 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
556 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
558 # include "sparc_arch.h"
560 extern unsigned int OPENSSL_sparcv9cap_P[];
562 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
564 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
565 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
566 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
568 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
571 * Key-length specific subroutines were chosen for following reason.
572 * Each SPARC T4 core can execute up to 8 threads which share core's
573 * resources. Loading as much key material to registers allows to
574 * minimize references to shared memory interface, as well as amount
575 * of instructions in inner loops [much needed on T4]. But then having
576 * non-key-length specific routines would require conditional branches
577 * either in inner loops or on subroutines' entries. Former is hardly
578 * acceptable, while latter means code size increase to size occupied
579 * by multiple key-length specfic subroutines, so why fight?
581 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
582 size_t len, const AES_KEY *key,
583 unsigned char *ivec);
584 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
585 size_t len, const AES_KEY *key,
586 unsigned char *ivec);
587 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
588 size_t len, const AES_KEY *key,
589 unsigned char *ivec);
590 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
591 size_t len, const AES_KEY *key,
592 unsigned char *ivec);
593 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
594 size_t len, const AES_KEY *key,
595 unsigned char *ivec);
596 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
597 size_t len, const AES_KEY *key,
598 unsigned char *ivec);
599 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
600 size_t blocks, const AES_KEY *key,
601 unsigned char *ivec);
602 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
603 size_t blocks, const AES_KEY *key,
604 unsigned char *ivec);
605 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
606 size_t blocks, const AES_KEY *key,
607 unsigned char *ivec);
608 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
609 size_t blocks, const AES_KEY *key1,
610 const AES_KEY *key2, const unsigned char *ivec);
611 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
612 size_t blocks, const AES_KEY *key1,
613 const AES_KEY *key2, const unsigned char *ivec);
614 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
615 size_t blocks, const AES_KEY *key1,
616 const AES_KEY *key2, const unsigned char *ivec);
617 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
618 size_t blocks, const AES_KEY *key1,
619 const AES_KEY *key2, const unsigned char *ivec);
621 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
622 const unsigned char *iv, int enc)
625 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
627 mode = ctx->cipher->flags & EVP_CIPH_MODE;
628 bits = ctx->key_len * 8;
629 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
632 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
633 dat->block = (block128_f) aes_t4_decrypt;
636 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
637 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
640 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
641 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
644 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
645 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
652 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
653 dat->block = (block128_f) aes_t4_encrypt;
656 if (mode == EVP_CIPH_CBC_MODE)
657 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
658 else if (mode == EVP_CIPH_CTR_MODE)
659 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
661 dat->stream.cbc = NULL;
664 if (mode == EVP_CIPH_CBC_MODE)
665 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
666 else if (mode == EVP_CIPH_CTR_MODE)
667 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
669 dat->stream.cbc = NULL;
672 if (mode == EVP_CIPH_CBC_MODE)
673 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
674 else if (mode == EVP_CIPH_CTR_MODE)
675 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
677 dat->stream.cbc = NULL;
685 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
692 # define aes_t4_cbc_cipher aes_cbc_cipher
693 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
694 const unsigned char *in, size_t len);
696 # define aes_t4_ecb_cipher aes_ecb_cipher
697 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
698 const unsigned char *in, size_t len);
700 # define aes_t4_ofb_cipher aes_ofb_cipher
701 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
702 const unsigned char *in, size_t len);
704 # define aes_t4_cfb_cipher aes_cfb_cipher
705 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
706 const unsigned char *in, size_t len);
708 # define aes_t4_cfb8_cipher aes_cfb8_cipher
709 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
710 const unsigned char *in, size_t len);
712 # define aes_t4_cfb1_cipher aes_cfb1_cipher
713 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
714 const unsigned char *in, size_t len);
716 # define aes_t4_ctr_cipher aes_ctr_cipher
717 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
718 const unsigned char *in, size_t len);
720 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
721 const unsigned char *iv, int enc)
723 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
727 int bits = ctx->key_len * 8;
728 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
729 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
730 (block128_f) aes_t4_encrypt);
733 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
736 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
739 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
745 * If we have an iv can set it directly, otherwise use saved IV.
747 if (iv == NULL && gctx->iv_set)
750 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
755 /* If key set use IV, otherwise copy */
757 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
759 memcpy(gctx->iv, iv, gctx->ivlen);
766 # define aes_t4_gcm_cipher aes_gcm_cipher
767 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
768 const unsigned char *in, size_t len);
770 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
771 const unsigned char *iv, int enc)
773 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
778 int bits = ctx->key_len * 4;
780 /* key_len is two AES keys */
782 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
783 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
786 xctx->stream = aes128_t4_xts_encrypt;
789 xctx->stream = aes256_t4_xts_encrypt;
795 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
796 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
799 xctx->stream = aes128_t4_xts_decrypt;
802 xctx->stream = aes256_t4_xts_decrypt;
809 aes_t4_set_encrypt_key(key + ctx->key_len / 2,
810 ctx->key_len * 4, &xctx->ks2.ks);
811 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
813 xctx->xts.key1 = &xctx->ks1;
817 xctx->xts.key2 = &xctx->ks2;
818 memcpy(ctx->iv, iv, 16);
824 # define aes_t4_xts_cipher aes_xts_cipher
825 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
826 const unsigned char *in, size_t len);
828 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
829 const unsigned char *iv, int enc)
831 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
835 int bits = ctx->key_len * 8;
836 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
837 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
838 &cctx->ks, (block128_f) aes_t4_encrypt);
843 memcpy(ctx->iv, iv, 15 - cctx->L);
849 # define aes_t4_ccm_cipher aes_ccm_cipher
850 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
851 const unsigned char *in, size_t len);
853 # ifndef OPENSSL_NO_OCB
854 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
855 const unsigned char *iv, int enc)
857 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
863 * We set both the encrypt and decrypt key here because decrypt
864 * needs both. We could possibly optimise to remove setting the
865 * decrypt for an encryption operation.
867 aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
868 aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
869 if (!CRYPTO_ocb128_init(&octx->ocb,
870 &octx->ksenc.ks, &octx->ksdec.ks,
871 (block128_f) aes_t4_encrypt,
872 (block128_f) aes_t4_decrypt))
878 * If we have an iv we can set it directly, otherwise use saved IV.
880 if (iv == NULL && octx->iv_set)
883 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
890 /* If key set use IV, otherwise copy */
892 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
894 memcpy(octx->iv, iv, octx->ivlen);
900 # define aes_t4_ocb_cipher aes_ocb_cipher
901 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
902 const unsigned char *in, size_t len);
903 # endif /* OPENSSL_NO_OCB */
905 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
906 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
907 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
908 flags|EVP_CIPH_##MODE##_MODE, \
910 aes_t4_##mode##_cipher, \
912 sizeof(EVP_AES_KEY), \
913 NULL,NULL,NULL,NULL }; \
914 static const EVP_CIPHER aes_##keylen##_##mode = { \
915 nid##_##keylen##_##nmode,blocksize, \
917 flags|EVP_CIPH_##MODE##_MODE, \
919 aes_##mode##_cipher, \
921 sizeof(EVP_AES_KEY), \
922 NULL,NULL,NULL,NULL }; \
923 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
924 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
926 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
927 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
928 nid##_##keylen##_##mode,blocksize, \
929 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
930 flags|EVP_CIPH_##MODE##_MODE, \
931 aes_t4_##mode##_init_key, \
932 aes_t4_##mode##_cipher, \
933 aes_##mode##_cleanup, \
934 sizeof(EVP_AES_##MODE##_CTX), \
935 NULL,NULL,aes_##mode##_ctrl,NULL }; \
936 static const EVP_CIPHER aes_##keylen##_##mode = { \
937 nid##_##keylen##_##mode,blocksize, \
938 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
939 flags|EVP_CIPH_##MODE##_MODE, \
940 aes_##mode##_init_key, \
941 aes_##mode##_cipher, \
942 aes_##mode##_cleanup, \
943 sizeof(EVP_AES_##MODE##_CTX), \
944 NULL,NULL,aes_##mode##_ctrl,NULL }; \
945 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
946 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
950 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
951 static const EVP_CIPHER aes_##keylen##_##mode = { \
952 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
953 flags|EVP_CIPH_##MODE##_MODE, \
955 aes_##mode##_cipher, \
957 sizeof(EVP_AES_KEY), \
958 NULL,NULL,NULL,NULL }; \
959 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
960 { return &aes_##keylen##_##mode; }
962 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
963 static const EVP_CIPHER aes_##keylen##_##mode = { \
964 nid##_##keylen##_##mode,blocksize, \
965 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
966 flags|EVP_CIPH_##MODE##_MODE, \
967 aes_##mode##_init_key, \
968 aes_##mode##_cipher, \
969 aes_##mode##_cleanup, \
970 sizeof(EVP_AES_##MODE##_CTX), \
971 NULL,NULL,aes_##mode##_ctrl,NULL }; \
972 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
973 { return &aes_##keylen##_##mode; }
977 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
978 # include "arm_arch.h"
979 # if __ARM_MAX_ARCH__>=7
980 # if defined(BSAES_ASM)
981 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
983 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
984 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
985 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
986 # define HWAES_encrypt aes_v8_encrypt
987 # define HWAES_decrypt aes_v8_decrypt
988 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
989 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
993 # if defined(HWAES_CAPABLE)
994 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
996 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
998 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1000 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1001 const AES_KEY *key);
1002 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1003 size_t length, const AES_KEY *key,
1004 unsigned char *ivec, const int enc);
1005 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1006 size_t len, const AES_KEY *key,
1007 const unsigned char ivec[16]);
1010 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1011 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1012 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1013 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1014 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1015 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1016 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1017 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1019 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1020 const unsigned char *iv, int enc)
1023 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1025 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1026 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1028 # ifdef HWAES_CAPABLE
1029 if (HWAES_CAPABLE) {
1030 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1031 dat->block = (block128_f) HWAES_decrypt;
1032 dat->stream.cbc = NULL;
1033 # ifdef HWAES_cbc_encrypt
1034 if (mode == EVP_CIPH_CBC_MODE)
1035 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1039 # ifdef BSAES_CAPABLE
1040 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1041 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1042 dat->block = (block128_f) AES_decrypt;
1043 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1046 # ifdef VPAES_CAPABLE
1047 if (VPAES_CAPABLE) {
1048 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1049 dat->block = (block128_f) vpaes_decrypt;
1050 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1051 (cbc128_f) vpaes_cbc_encrypt : NULL;
1055 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1056 dat->block = (block128_f) AES_decrypt;
1057 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1058 (cbc128_f) AES_cbc_encrypt : NULL;
1060 # ifdef HWAES_CAPABLE
1061 if (HWAES_CAPABLE) {
1062 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1063 dat->block = (block128_f) HWAES_encrypt;
1064 dat->stream.cbc = NULL;
1065 # ifdef HWAES_cbc_encrypt
1066 if (mode == EVP_CIPH_CBC_MODE)
1067 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1070 # ifdef HWAES_ctr32_encrypt_blocks
1071 if (mode == EVP_CIPH_CTR_MODE)
1072 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1075 (void)0; /* terminate potentially open 'else' */
1078 # ifdef BSAES_CAPABLE
1079 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1080 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1081 dat->block = (block128_f) AES_encrypt;
1082 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1085 # ifdef VPAES_CAPABLE
1086 if (VPAES_CAPABLE) {
1087 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1088 dat->block = (block128_f) vpaes_encrypt;
1089 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1090 (cbc128_f) vpaes_cbc_encrypt : NULL;
1094 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1095 dat->block = (block128_f) AES_encrypt;
1096 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1097 (cbc128_f) AES_cbc_encrypt : NULL;
1099 if (mode == EVP_CIPH_CTR_MODE)
1100 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1105 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1112 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1113 const unsigned char *in, size_t len)
1115 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1117 if (dat->stream.cbc)
1118 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1119 else if (ctx->encrypt)
1120 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1122 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1127 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1128 const unsigned char *in, size_t len)
1130 size_t bl = ctx->cipher->block_size;
1132 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1137 for (i = 0, len -= bl; i <= len; i += bl)
1138 (*dat->block) (in + i, out + i, &dat->ks);
1143 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1144 const unsigned char *in, size_t len)
1146 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1148 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1149 ctx->iv, &ctx->num, dat->block);
1153 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1154 const unsigned char *in, size_t len)
1156 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1158 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1159 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1163 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1164 const unsigned char *in, size_t len)
1166 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1168 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1169 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1173 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1174 const unsigned char *in, size_t len)
1176 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1178 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1179 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1180 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1184 while (len >= MAXBITCHUNK) {
1185 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1186 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1190 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1191 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1196 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1197 const unsigned char *in, size_t len)
1199 unsigned int num = ctx->num;
1200 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1202 if (dat->stream.ctr)
1203 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1204 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1206 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1207 ctx->iv, ctx->buf, &num, dat->block);
1208 ctx->num = (size_t)num;
1212 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1213 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1214 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1216 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1218 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1219 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1220 if (gctx->iv != c->iv)
1221 OPENSSL_free(gctx->iv);
1225 /* increment counter (64-bit int) by 1 */
1226 static void ctr64_inc(unsigned char *counter)
1241 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1243 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1248 gctx->ivlen = c->cipher->iv_len;
1252 gctx->tls_aad_len = -1;
1255 case EVP_CTRL_AEAD_SET_IVLEN:
1258 /* Allocate memory for IV if needed */
1259 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1260 if (gctx->iv != c->iv)
1261 OPENSSL_free(gctx->iv);
1262 gctx->iv = OPENSSL_malloc(arg);
1269 case EVP_CTRL_AEAD_SET_TAG:
1270 if (arg <= 0 || arg > 16 || c->encrypt)
1272 memcpy(c->buf, ptr, arg);
1276 case EVP_CTRL_AEAD_GET_TAG:
1277 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1279 memcpy(ptr, c->buf, arg);
1282 case EVP_CTRL_GCM_SET_IV_FIXED:
1283 /* Special case: -1 length restores whole IV */
1285 memcpy(gctx->iv, ptr, gctx->ivlen);
1290 * Fixed field must be at least 4 bytes and invocation field at least
1293 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1296 memcpy(gctx->iv, ptr, arg);
1297 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1302 case EVP_CTRL_GCM_IV_GEN:
1303 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1305 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1306 if (arg <= 0 || arg > gctx->ivlen)
1308 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1310 * Invocation field will be at least 8 bytes in size and so no need
1311 * to check wrap around or increment more than last 8 bytes.
1313 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1317 case EVP_CTRL_GCM_SET_IV_INV:
1318 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1320 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1321 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1325 case EVP_CTRL_AEAD_TLS1_AAD:
1326 /* Save the AAD for later use */
1329 memcpy(c->buf, ptr, arg);
1330 gctx->tls_aad_len = arg;
1332 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1333 /* Correct length for explicit IV */
1334 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1335 /* If decrypting correct for tag too */
1337 len -= EVP_GCM_TLS_TAG_LEN;
1338 c->buf[arg - 2] = len >> 8;
1339 c->buf[arg - 1] = len & 0xff;
1341 /* Extra padding: tag appended to record */
1342 return EVP_GCM_TLS_TAG_LEN;
1346 EVP_CIPHER_CTX *out = ptr;
1347 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1348 if (gctx->gcm.key) {
1349 if (gctx->gcm.key != &gctx->ks)
1351 gctx_out->gcm.key = &gctx_out->ks;
1353 if (gctx->iv == c->iv)
1354 gctx_out->iv = out->iv;
1356 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1359 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1370 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1371 const unsigned char *iv, int enc)
1373 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1378 # ifdef HWAES_CAPABLE
1379 if (HWAES_CAPABLE) {
1380 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1381 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1382 (block128_f) HWAES_encrypt);
1383 # ifdef HWAES_ctr32_encrypt_blocks
1384 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1391 # ifdef BSAES_CAPABLE
1392 if (BSAES_CAPABLE) {
1393 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1394 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1395 (block128_f) AES_encrypt);
1396 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1400 # ifdef VPAES_CAPABLE
1401 if (VPAES_CAPABLE) {
1402 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1403 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1404 (block128_f) vpaes_encrypt);
1409 (void)0; /* terminate potentially open 'else' */
1411 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1412 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1413 (block128_f) AES_encrypt);
1415 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1422 * If we have an iv can set it directly, otherwise use saved IV.
1424 if (iv == NULL && gctx->iv_set)
1427 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1432 /* If key set use IV, otherwise copy */
1434 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1436 memcpy(gctx->iv, iv, gctx->ivlen);
1444 * Handle TLS GCM packet format. This consists of the last portion of the IV
1445 * followed by the payload and finally the tag. On encrypt generate IV,
1446 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1450 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1451 const unsigned char *in, size_t len)
1453 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1455 /* Encrypt/decrypt must be performed in place */
1457 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1460 * Set IV from start of buffer or generate IV and write to start of
1463 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1464 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1465 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1468 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1470 /* Fix buffer and length to point to payload */
1471 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1472 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1473 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1475 /* Encrypt payload */
1478 # if defined(AES_GCM_ASM)
1479 if (len >= 32 && AES_GCM_ASM(gctx)) {
1480 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1483 bulk = AES_gcm_encrypt(in, out, len,
1485 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1486 gctx->gcm.len.u[1] += bulk;
1489 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1492 len - bulk, gctx->ctr))
1496 # if defined(AES_GCM_ASM2)
1497 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1498 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1501 bulk = AES_gcm_encrypt(in, out, len,
1503 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1504 gctx->gcm.len.u[1] += bulk;
1507 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1508 in + bulk, out + bulk, len - bulk))
1512 /* Finally write tag */
1513 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1514 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1519 # if defined(AES_GCM_ASM)
1520 if (len >= 16 && AES_GCM_ASM(gctx)) {
1521 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1524 bulk = AES_gcm_decrypt(in, out, len,
1526 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1527 gctx->gcm.len.u[1] += bulk;
1530 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1533 len - bulk, gctx->ctr))
1537 # if defined(AES_GCM_ASM2)
1538 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1539 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1542 bulk = AES_gcm_decrypt(in, out, len,
1544 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1545 gctx->gcm.len.u[1] += bulk;
1548 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1549 in + bulk, out + bulk, len - bulk))
1553 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1554 /* If tag mismatch wipe buffer */
1555 if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1556 OPENSSL_cleanse(out, len);
1564 gctx->tls_aad_len = -1;
1568 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1569 const unsigned char *in, size_t len)
1571 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1572 /* If not set up, return error */
1576 if (gctx->tls_aad_len >= 0)
1577 return aes_gcm_tls_cipher(ctx, out, in, len);
1583 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1585 } else if (ctx->encrypt) {
1588 # if defined(AES_GCM_ASM)
1589 if (len >= 32 && AES_GCM_ASM(gctx)) {
1590 size_t res = (16 - gctx->gcm.mres) % 16;
1592 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1595 bulk = AES_gcm_encrypt(in + res,
1596 out + res, len - res,
1597 gctx->gcm.key, gctx->gcm.Yi.c,
1599 gctx->gcm.len.u[1] += bulk;
1603 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1606 len - bulk, gctx->ctr))
1610 # if defined(AES_GCM_ASM2)
1611 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1612 size_t res = (16 - gctx->gcm.mres) % 16;
1614 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1617 bulk = AES_gcm_encrypt(in + res,
1618 out + res, len - res,
1619 gctx->gcm.key, gctx->gcm.Yi.c,
1621 gctx->gcm.len.u[1] += bulk;
1625 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1626 in + bulk, out + bulk, len - bulk))
1632 # if defined(AES_GCM_ASM)
1633 if (len >= 16 && AES_GCM_ASM(gctx)) {
1634 size_t res = (16 - gctx->gcm.mres) % 16;
1636 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1639 bulk = AES_gcm_decrypt(in + res,
1640 out + res, len - res,
1642 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1643 gctx->gcm.len.u[1] += bulk;
1647 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1650 len - bulk, gctx->ctr))
1654 # if defined(AES_GCM_ASM2)
1655 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1656 size_t res = (16 - gctx->gcm.mres) % 16;
1658 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1661 bulk = AES_gcm_decrypt(in + res,
1662 out + res, len - res,
1664 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1665 gctx->gcm.len.u[1] += bulk;
1669 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1670 in + bulk, out + bulk, len - bulk))
1676 if (!ctx->encrypt) {
1677 if (gctx->taglen < 0)
1679 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1684 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1686 /* Don't reuse the IV */
1693 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1694 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1695 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1696 | EVP_CIPH_CUSTOM_COPY)
1698 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1699 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1700 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1701 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1702 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1703 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1705 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1707 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1708 if (type == EVP_CTRL_COPY) {
1709 EVP_CIPHER_CTX *out = ptr;
1710 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1711 if (xctx->xts.key1) {
1712 if (xctx->xts.key1 != &xctx->ks1)
1714 xctx_out->xts.key1 = &xctx_out->ks1;
1716 if (xctx->xts.key2) {
1717 if (xctx->xts.key2 != &xctx->ks2)
1719 xctx_out->xts.key2 = &xctx_out->ks2;
1722 } else if (type != EVP_CTRL_INIT)
1724 /* key1 and key2 are used as an indicator both key and IV are set */
1725 xctx->xts.key1 = NULL;
1726 xctx->xts.key2 = NULL;
1730 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1731 const unsigned char *iv, int enc)
1733 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1740 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1742 xctx->stream = NULL;
1744 /* key_len is two AES keys */
1745 # ifdef HWAES_CAPABLE
1746 if (HWAES_CAPABLE) {
1748 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1750 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1752 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1754 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1757 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1758 ctx->key_len * 4, &xctx->ks2.ks);
1759 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1761 xctx->xts.key1 = &xctx->ks1;
1765 # ifdef BSAES_CAPABLE
1767 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1770 # ifdef VPAES_CAPABLE
1771 if (VPAES_CAPABLE) {
1773 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1775 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1777 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1779 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1782 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1783 ctx->key_len * 4, &xctx->ks2.ks);
1784 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1786 xctx->xts.key1 = &xctx->ks1;
1790 (void)0; /* terminate potentially open 'else' */
1793 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1794 xctx->xts.block1 = (block128_f) AES_encrypt;
1796 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1797 xctx->xts.block1 = (block128_f) AES_decrypt;
1800 AES_set_encrypt_key(key + ctx->key_len / 2,
1801 ctx->key_len * 4, &xctx->ks2.ks);
1802 xctx->xts.block2 = (block128_f) AES_encrypt;
1804 xctx->xts.key1 = &xctx->ks1;
1808 xctx->xts.key2 = &xctx->ks2;
1809 memcpy(ctx->iv, iv, 16);
1815 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1816 const unsigned char *in, size_t len)
1818 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1819 if (!xctx->xts.key1 || !xctx->xts.key2)
1821 if (!out || !in || len < AES_BLOCK_SIZE)
1824 (*xctx->stream) (in, out, len,
1825 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1826 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1832 # define aes_xts_cleanup NULL
1834 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1835 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1836 | EVP_CIPH_CUSTOM_COPY)
1838 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1839 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1841 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1843 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1854 case EVP_CTRL_AEAD_SET_IVLEN:
1856 case EVP_CTRL_CCM_SET_L:
1857 if (arg < 2 || arg > 8)
1862 case EVP_CTRL_AEAD_SET_TAG:
1863 if ((arg & 1) || arg < 4 || arg > 16)
1865 if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
1869 memcpy(c->buf, ptr, arg);
1874 case EVP_CTRL_AEAD_GET_TAG:
1875 if (!c->encrypt || !cctx->tag_set)
1877 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1886 EVP_CIPHER_CTX *out = ptr;
1887 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1888 if (cctx->ccm.key) {
1889 if (cctx->ccm.key != &cctx->ks)
1891 cctx_out->ccm.key = &cctx_out->ks;
1902 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1903 const unsigned char *iv, int enc)
1905 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1910 # ifdef HWAES_CAPABLE
1911 if (HWAES_CAPABLE) {
1912 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1914 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1915 &cctx->ks, (block128_f) HWAES_encrypt);
1921 # ifdef VPAES_CAPABLE
1922 if (VPAES_CAPABLE) {
1923 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1924 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1925 &cctx->ks, (block128_f) vpaes_encrypt);
1931 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1932 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1933 &cctx->ks, (block128_f) AES_encrypt);
1938 memcpy(ctx->iv, iv, 15 - cctx->L);
1944 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1945 const unsigned char *in, size_t len)
1947 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1948 CCM128_CONTEXT *ccm = &cctx->ccm;
1949 /* If not set up, return error */
1950 if (!cctx->iv_set && !cctx->key_set)
1952 if (!ctx->encrypt && !cctx->tag_set)
1956 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1961 /* If have AAD need message length */
1962 if (!cctx->len_set && len)
1964 CRYPTO_ccm128_aad(ccm, in, len);
1967 /* EVP_*Final() doesn't return any data */
1970 /* If not set length yet do it */
1971 if (!cctx->len_set) {
1972 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1977 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1979 CRYPTO_ccm128_encrypt(ccm, in, out, len))
1985 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
1987 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
1988 unsigned char tag[16];
1989 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
1990 if (!memcmp(tag, ctx->buf, cctx->M))
1995 OPENSSL_cleanse(out, len);
2004 # define aes_ccm_cleanup NULL
2006 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2007 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2008 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2015 /* Indicates if IV has been set */
2019 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2020 const unsigned char *iv, int enc)
2022 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2027 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2029 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2034 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2040 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2041 const unsigned char *in, size_t inlen)
2043 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2045 /* AES wrap with padding has IV length of 4, without padding 8 */
2046 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2047 /* No final operation so always return zero length */
2050 /* Input length must always be non-zero */
2053 /* If decrypting need at least 16 bytes and multiple of 8 */
2054 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2056 /* If not padding input must be multiple of 8 */
2057 if (!pad && inlen & 0x7)
2061 /* If padding round up to multiple of 8 */
2063 inlen = (inlen + 7) / 8 * 8;
2068 * If not padding output will be exactly 8 bytes smaller than
2069 * input. If padding it will be at least 8 bytes smaller but we
2070 * don't know how much.
2077 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2079 (block128_f) AES_encrypt);
2081 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2083 (block128_f) AES_decrypt);
2086 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2087 out, in, inlen, (block128_f) AES_encrypt);
2089 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2090 out, in, inlen, (block128_f) AES_decrypt);
2092 return rv ? (int)rv : -1;
2095 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2096 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2097 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2099 static const EVP_CIPHER aes_128_wrap = {
2101 8, 16, 8, WRAP_FLAGS,
2102 aes_wrap_init_key, aes_wrap_cipher,
2104 sizeof(EVP_AES_WRAP_CTX),
2105 NULL, NULL, NULL, NULL
2108 const EVP_CIPHER *EVP_aes_128_wrap(void)
2110 return &aes_128_wrap;
2113 static const EVP_CIPHER aes_192_wrap = {
2115 8, 24, 8, WRAP_FLAGS,
2116 aes_wrap_init_key, aes_wrap_cipher,
2118 sizeof(EVP_AES_WRAP_CTX),
2119 NULL, NULL, NULL, NULL
2122 const EVP_CIPHER *EVP_aes_192_wrap(void)
2124 return &aes_192_wrap;
2127 static const EVP_CIPHER aes_256_wrap = {
2129 8, 32, 8, WRAP_FLAGS,
2130 aes_wrap_init_key, aes_wrap_cipher,
2132 sizeof(EVP_AES_WRAP_CTX),
2133 NULL, NULL, NULL, NULL
2136 const EVP_CIPHER *EVP_aes_256_wrap(void)
2138 return &aes_256_wrap;
2141 static const EVP_CIPHER aes_128_wrap_pad = {
2142 NID_id_aes128_wrap_pad,
2143 8, 16, 4, WRAP_FLAGS,
2144 aes_wrap_init_key, aes_wrap_cipher,
2146 sizeof(EVP_AES_WRAP_CTX),
2147 NULL, NULL, NULL, NULL
2150 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2152 return &aes_128_wrap_pad;
2155 static const EVP_CIPHER aes_192_wrap_pad = {
2156 NID_id_aes192_wrap_pad,
2157 8, 24, 4, WRAP_FLAGS,
2158 aes_wrap_init_key, aes_wrap_cipher,
2160 sizeof(EVP_AES_WRAP_CTX),
2161 NULL, NULL, NULL, NULL
2164 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2166 return &aes_192_wrap_pad;
2169 static const EVP_CIPHER aes_256_wrap_pad = {
2170 NID_id_aes256_wrap_pad,
2171 8, 32, 4, WRAP_FLAGS,
2172 aes_wrap_init_key, aes_wrap_cipher,
2174 sizeof(EVP_AES_WRAP_CTX),
2175 NULL, NULL, NULL, NULL
2178 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2180 return &aes_256_wrap_pad;
2183 # ifndef OPENSSL_NO_OCB
2184 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2186 EVP_AES_OCB_CTX *octx = c->cipher_data;
2187 EVP_CIPHER_CTX *newc;
2188 EVP_AES_OCB_CTX *new_octx;
2194 octx->ivlen = c->cipher->iv_len;
2197 octx->data_buf_len = 0;
2198 octx->aad_buf_len = 0;
2201 case EVP_CTRL_AEAD_SET_IVLEN:
2202 /* IV len must be 1 to 15 */
2203 if (arg <= 0 || arg > 15)
2209 case EVP_CTRL_AEAD_SET_TAG:
2211 /* Tag len must be 0 to 16 */
2212 if (arg < 0 || arg > 16)
2218 if (arg != octx->taglen || c->encrypt)
2220 memcpy(octx->tag, ptr, arg);
2223 case EVP_CTRL_AEAD_GET_TAG:
2224 if (arg != octx->taglen || !c->encrypt)
2227 memcpy(ptr, octx->tag, arg);
2231 newc = (EVP_CIPHER_CTX *)ptr;
2232 new_octx = newc->cipher_data;
2233 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2234 &new_octx->ksenc.ks,
2235 &new_octx->ksdec.ks);
2243 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2244 const unsigned char *iv, int enc)
2246 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2252 * We set both the encrypt and decrypt key here because decrypt
2253 * needs both. We could possibly optimise to remove setting the
2254 * decrypt for an encryption operation.
2256 # ifdef VPAES_CAPABLE
2257 if (VPAES_CAPABLE) {
2258 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2259 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2260 if (!CRYPTO_ocb128_init(&octx->ocb,
2261 &octx->ksenc.ks, &octx->ksdec.ks,
2262 (block128_f) vpaes_encrypt,
2263 (block128_f) vpaes_decrypt))
2268 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2269 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2270 if (!CRYPTO_ocb128_init(&octx->ocb,
2271 &octx->ksenc.ks, &octx->ksdec.ks,
2272 (block128_f) AES_encrypt,
2273 (block128_f) AES_decrypt))
2279 * If we have an iv we can set it directly, otherwise use saved IV.
2281 if (iv == NULL && octx->iv_set)
2284 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2291 /* If key set use IV, otherwise copy */
2293 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2295 memcpy(octx->iv, iv, octx->ivlen);
2301 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2302 const unsigned char *in, size_t len)
2306 int written_len = 0;
2307 size_t trailing_len;
2308 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2310 /* If IV or Key not set then return error */
2319 * Need to ensure we are only passing full blocks to low level OCB
2320 * routines. We do it here rather than in EVP_EncryptUpdate/
2321 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2322 * and those routines don't support that
2325 /* Are we dealing with AAD or normal data here? */
2327 buf = octx->aad_buf;
2328 buf_len = &(octx->aad_buf_len);
2330 buf = octx->data_buf;
2331 buf_len = &(octx->data_buf_len);
2335 * If we've got a partially filled buffer from a previous call then
2336 * use that data first
2339 unsigned int remaining;
2341 remaining = 16 - (*buf_len);
2342 if (remaining > len) {
2343 memcpy(buf + (*buf_len), in, len);
2347 memcpy(buf + (*buf_len), in, remaining);
2350 * If we get here we've filled the buffer, so process it
2355 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2357 } else if (ctx->encrypt) {
2358 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2361 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2368 /* Do we have a partial block to handle at the end? */
2369 trailing_len = len % 16;
2372 * If we've got some full blocks to handle, then process these first
2374 if (len != trailing_len) {
2376 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2378 } else if (ctx->encrypt) {
2379 if (!CRYPTO_ocb128_encrypt
2380 (&octx->ocb, in, out, len - trailing_len))
2383 if (!CRYPTO_ocb128_decrypt
2384 (&octx->ocb, in, out, len - trailing_len))
2387 written_len += len - trailing_len;
2388 in += len - trailing_len;
2391 /* Handle any trailing partial block */
2393 memcpy(buf, in, trailing_len);
2394 *buf_len = trailing_len;
2400 * First of all empty the buffer of any partial block that we might
2401 * have been provided - both for data and AAD
2403 if (octx->data_buf_len) {
2405 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2406 octx->data_buf_len))
2409 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2410 octx->data_buf_len))
2413 written_len = octx->data_buf_len;
2414 octx->data_buf_len = 0;
2416 if (octx->aad_buf_len) {
2417 if (!CRYPTO_ocb128_aad
2418 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2420 octx->aad_buf_len = 0;
2422 /* If decrypting then verify */
2423 if (!ctx->encrypt) {
2424 if (octx->taglen < 0)
2426 if (CRYPTO_ocb128_finish(&octx->ocb,
2427 octx->tag, octx->taglen) != 0)
2432 /* If encrypting then just get the tag */
2433 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2435 /* Don't reuse the IV */
2441 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2443 EVP_AES_OCB_CTX *octx = c->cipher_data;
2444 CRYPTO_ocb128_cleanup(&octx->ocb);
2448 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2449 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2450 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2451 # endif /* OPENSSL_NO_OCB */