1 /* ====================================================================
2 * Copyright (c) 2001-2018 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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22 * endorse or promote products derived from this software without
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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
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30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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47 * ====================================================================
51 #include <openssl/opensslconf.h>
52 #ifndef OPENSSL_NO_AES
53 #include <openssl/crypto.h>
54 # include <openssl/evp.h>
55 # include <openssl/err.h>
58 # include <openssl/aes.h>
59 # include "evp_locl.h"
60 # include "modes_lcl.h"
61 # include <openssl/rand.h>
63 # undef EVP_CIPH_FLAG_FIPS
64 # define EVP_CIPH_FLAG_FIPS 0
82 } ks; /* AES key schedule to use */
83 int key_set; /* Set if key initialised */
84 int iv_set; /* Set if an iv is set */
86 unsigned char *iv; /* Temporary IV store */
87 int ivlen; /* IV length */
89 int iv_gen; /* It is OK to generate IVs */
90 int tls_aad_len; /* TLS AAD length */
98 } ks1, ks2; /* AES key schedules to use */
100 void (*stream) (const unsigned char *in,
101 unsigned char *out, size_t length,
102 const AES_KEY *key1, const AES_KEY *key2,
103 const unsigned char iv[16]);
110 } ks; /* AES key schedule to use */
111 int key_set; /* Set if key initialised */
112 int iv_set; /* Set if an iv is set */
113 int tag_set; /* Set if tag is valid */
114 int len_set; /* Set if message length set */
115 int L, M; /* L and M parameters from RFC3610 */
120 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
123 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
125 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
128 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
130 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
133 void vpaes_cbc_encrypt(const unsigned char *in,
136 const AES_KEY *key, unsigned char *ivec, int enc);
139 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
140 size_t length, const AES_KEY *key,
141 unsigned char ivec[16], int enc);
142 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
143 size_t len, const AES_KEY *key,
144 const unsigned char ivec[16]);
145 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
146 size_t len, const AES_KEY *key1,
147 const AES_KEY *key2, const unsigned char iv[16]);
148 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
149 size_t len, const AES_KEY *key1,
150 const AES_KEY *key2, const unsigned char iv[16]);
153 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
154 size_t blocks, const AES_KEY *key,
155 const unsigned char ivec[AES_BLOCK_SIZE]);
158 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
159 const AES_KEY *key1, const AES_KEY *key2,
160 const unsigned char iv[16]);
161 void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
162 const AES_KEY *key1, const AES_KEY *key2,
163 const unsigned char iv[16]);
166 # if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
167 # include "ppc_arch.h"
169 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
171 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
172 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
173 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
174 # define HWAES_encrypt aes_p8_encrypt
175 # define HWAES_decrypt aes_p8_decrypt
176 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
177 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
180 # if defined(AES_ASM) && !defined(I386_ONLY) && ( \
181 ((defined(__i386) || defined(__i386__) || \
182 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
183 defined(__x86_64) || defined(__x86_64__) || \
184 defined(_M_AMD64) || defined(_M_X64) || \
187 extern unsigned int OPENSSL_ia32cap_P[];
190 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
193 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
198 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
200 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
202 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
205 void aesni_encrypt(const unsigned char *in, unsigned char *out,
207 void aesni_decrypt(const unsigned char *in, unsigned char *out,
210 void aesni_ecb_encrypt(const unsigned char *in,
212 size_t length, const AES_KEY *key, int enc);
213 void aesni_cbc_encrypt(const unsigned char *in,
216 const AES_KEY *key, unsigned char *ivec, int enc);
218 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
221 const void *key, const unsigned char *ivec);
223 void aesni_xts_encrypt(const unsigned char *in,
226 const AES_KEY *key1, const AES_KEY *key2,
227 const unsigned char iv[16]);
229 void aesni_xts_decrypt(const unsigned char *in,
232 const AES_KEY *key1, const AES_KEY *key2,
233 const unsigned char iv[16]);
235 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
239 const unsigned char ivec[16],
240 unsigned char cmac[16]);
242 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
246 const unsigned char ivec[16],
247 unsigned char cmac[16]);
249 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
250 size_t aesni_gcm_encrypt(const unsigned char *in,
253 const void *key, unsigned char ivec[16], u64 *Xi);
254 # define AES_gcm_encrypt aesni_gcm_encrypt
255 size_t aesni_gcm_decrypt(const unsigned char *in,
258 const void *key, unsigned char ivec[16], u64 *Xi);
259 # define AES_gcm_decrypt aesni_gcm_decrypt
260 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
262 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
263 gctx->gcm.ghash==gcm_ghash_avx)
264 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
265 gctx->gcm.ghash==gcm_ghash_avx)
266 # undef AES_GCM_ASM2 /* minor size optimization */
269 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
270 const unsigned char *iv, int enc)
273 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
275 mode = ctx->cipher->flags & EVP_CIPH_MODE;
276 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
278 ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
279 dat->block = (block128_f) aesni_decrypt;
280 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
281 (cbc128_f) aesni_cbc_encrypt : NULL;
283 ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
284 dat->block = (block128_f) aesni_encrypt;
285 if (mode == EVP_CIPH_CBC_MODE)
286 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
287 else if (mode == EVP_CIPH_CTR_MODE)
288 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
290 dat->stream.cbc = NULL;
294 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
301 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
302 const unsigned char *in, size_t len)
304 aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
309 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
310 const unsigned char *in, size_t len)
312 size_t bl = ctx->cipher->block_size;
317 aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
322 # define aesni_ofb_cipher aes_ofb_cipher
323 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
324 const unsigned char *in, size_t len);
326 # define aesni_cfb_cipher aes_cfb_cipher
327 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
328 const unsigned char *in, size_t len);
330 # define aesni_cfb8_cipher aes_cfb8_cipher
331 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
332 const unsigned char *in, size_t len);
334 # define aesni_cfb1_cipher aes_cfb1_cipher
335 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
336 const unsigned char *in, size_t len);
338 # define aesni_ctr_cipher aes_ctr_cipher
339 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
340 const unsigned char *in, size_t len);
342 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
343 const unsigned char *iv, int enc)
345 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
349 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
350 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
351 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
353 * If we have an iv can set it directly, otherwise use saved IV.
355 if (iv == NULL && gctx->iv_set)
358 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
363 /* If key set use IV, otherwise copy */
365 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
367 memcpy(gctx->iv, iv, gctx->ivlen);
374 # define aesni_gcm_cipher aes_gcm_cipher
375 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
376 const unsigned char *in, size_t len);
378 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
379 const unsigned char *iv, int enc)
381 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
386 /* key_len is two AES keys */
388 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
389 xctx->xts.block1 = (block128_f) aesni_encrypt;
390 xctx->stream = aesni_xts_encrypt;
392 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
393 xctx->xts.block1 = (block128_f) aesni_decrypt;
394 xctx->stream = aesni_xts_decrypt;
397 aesni_set_encrypt_key(key + ctx->key_len / 2,
398 ctx->key_len * 4, &xctx->ks2.ks);
399 xctx->xts.block2 = (block128_f) aesni_encrypt;
401 xctx->xts.key1 = &xctx->ks1;
405 xctx->xts.key2 = &xctx->ks2;
406 memcpy(ctx->iv, iv, 16);
412 # define aesni_xts_cipher aes_xts_cipher
413 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
414 const unsigned char *in, size_t len);
416 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
417 const unsigned char *iv, int enc)
419 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
423 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
424 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
425 &cctx->ks, (block128_f) aesni_encrypt);
426 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
427 (ccm128_f) aesni_ccm64_decrypt_blocks;
431 memcpy(ctx->iv, iv, 15 - cctx->L);
437 # define aesni_ccm_cipher aes_ccm_cipher
438 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
439 const unsigned char *in, size_t len);
441 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
442 static const EVP_CIPHER aesni_##keylen##_##mode = { \
443 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
444 flags|EVP_CIPH_##MODE##_MODE, \
446 aesni_##mode##_cipher, \
448 sizeof(EVP_AES_KEY), \
449 NULL,NULL,NULL,NULL }; \
450 static const EVP_CIPHER aes_##keylen##_##mode = { \
451 nid##_##keylen##_##nmode,blocksize, \
453 flags|EVP_CIPH_##MODE##_MODE, \
455 aes_##mode##_cipher, \
457 sizeof(EVP_AES_KEY), \
458 NULL,NULL,NULL,NULL }; \
459 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
460 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
462 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
463 static const EVP_CIPHER aesni_##keylen##_##mode = { \
464 nid##_##keylen##_##mode,blocksize, \
465 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
466 flags|EVP_CIPH_##MODE##_MODE, \
467 aesni_##mode##_init_key, \
468 aesni_##mode##_cipher, \
469 aes_##mode##_cleanup, \
470 sizeof(EVP_AES_##MODE##_CTX), \
471 NULL,NULL,aes_##mode##_ctrl,NULL }; \
472 static const EVP_CIPHER aes_##keylen##_##mode = { \
473 nid##_##keylen##_##mode,blocksize, \
474 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
475 flags|EVP_CIPH_##MODE##_MODE, \
476 aes_##mode##_init_key, \
477 aes_##mode##_cipher, \
478 aes_##mode##_cleanup, \
479 sizeof(EVP_AES_##MODE##_CTX), \
480 NULL,NULL,aes_##mode##_ctrl,NULL }; \
481 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
482 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
484 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
486 # include "sparc_arch.h"
488 extern unsigned int OPENSSL_sparcv9cap_P[];
490 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
492 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
493 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
494 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
496 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
499 * Key-length specific subroutines were chosen for following reason.
500 * Each SPARC T4 core can execute up to 8 threads which share core's
501 * resources. Loading as much key material to registers allows to
502 * minimize references to shared memory interface, as well as amount
503 * of instructions in inner loops [much needed on T4]. But then having
504 * non-key-length specific routines would require conditional branches
505 * either in inner loops or on subroutines' entries. Former is hardly
506 * acceptable, while latter means code size increase to size occupied
507 * by multiple key-length specfic subroutines, so why fight?
509 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
510 size_t len, const AES_KEY *key,
511 unsigned char *ivec);
512 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
513 size_t len, const AES_KEY *key,
514 unsigned char *ivec);
515 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
516 size_t len, const AES_KEY *key,
517 unsigned char *ivec);
518 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
519 size_t len, const AES_KEY *key,
520 unsigned char *ivec);
521 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
522 size_t len, const AES_KEY *key,
523 unsigned char *ivec);
524 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
525 size_t len, const AES_KEY *key,
526 unsigned char *ivec);
527 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
528 size_t blocks, const AES_KEY *key,
529 unsigned char *ivec);
530 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
531 size_t blocks, const AES_KEY *key,
532 unsigned char *ivec);
533 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
534 size_t blocks, const AES_KEY *key,
535 unsigned char *ivec);
536 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
537 size_t blocks, const AES_KEY *key1,
538 const AES_KEY *key2, const unsigned char *ivec);
539 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
540 size_t blocks, const AES_KEY *key1,
541 const AES_KEY *key2, const unsigned char *ivec);
542 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
543 size_t blocks, const AES_KEY *key1,
544 const AES_KEY *key2, const unsigned char *ivec);
545 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
546 size_t blocks, const AES_KEY *key1,
547 const AES_KEY *key2, const unsigned char *ivec);
549 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
550 const unsigned char *iv, int enc)
553 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
555 mode = ctx->cipher->flags & EVP_CIPH_MODE;
556 bits = ctx->key_len * 8;
557 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
560 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
561 dat->block = (block128_f) aes_t4_decrypt;
564 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
565 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
568 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
569 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
572 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
573 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
580 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
581 dat->block = (block128_f) aes_t4_encrypt;
584 if (mode == EVP_CIPH_CBC_MODE)
585 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
586 else if (mode == EVP_CIPH_CTR_MODE)
587 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
589 dat->stream.cbc = NULL;
592 if (mode == EVP_CIPH_CBC_MODE)
593 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
594 else if (mode == EVP_CIPH_CTR_MODE)
595 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
597 dat->stream.cbc = NULL;
600 if (mode == EVP_CIPH_CBC_MODE)
601 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
602 else if (mode == EVP_CIPH_CTR_MODE)
603 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
605 dat->stream.cbc = NULL;
613 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
620 # define aes_t4_cbc_cipher aes_cbc_cipher
621 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
622 const unsigned char *in, size_t len);
624 # define aes_t4_ecb_cipher aes_ecb_cipher
625 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
626 const unsigned char *in, size_t len);
628 # define aes_t4_ofb_cipher aes_ofb_cipher
629 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
630 const unsigned char *in, size_t len);
632 # define aes_t4_cfb_cipher aes_cfb_cipher
633 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
634 const unsigned char *in, size_t len);
636 # define aes_t4_cfb8_cipher aes_cfb8_cipher
637 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
638 const unsigned char *in, size_t len);
640 # define aes_t4_cfb1_cipher aes_cfb1_cipher
641 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
642 const unsigned char *in, size_t len);
644 # define aes_t4_ctr_cipher aes_ctr_cipher
645 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
646 const unsigned char *in, size_t len);
648 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
649 const unsigned char *iv, int enc)
651 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
655 int bits = ctx->key_len * 8;
656 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
657 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
658 (block128_f) aes_t4_encrypt);
661 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
664 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
667 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
673 * If we have an iv can set it directly, otherwise use saved IV.
675 if (iv == NULL && gctx->iv_set)
678 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
683 /* If key set use IV, otherwise copy */
685 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
687 memcpy(gctx->iv, iv, gctx->ivlen);
694 # define aes_t4_gcm_cipher aes_gcm_cipher
695 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
696 const unsigned char *in, size_t len);
698 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
699 const unsigned char *iv, int enc)
701 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
706 int bits = ctx->key_len * 4;
708 /* key_len is two AES keys */
710 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
711 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
714 xctx->stream = aes128_t4_xts_encrypt;
718 xctx->stream = aes192_t4_xts_encrypt;
722 xctx->stream = aes256_t4_xts_encrypt;
728 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
729 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
732 xctx->stream = aes128_t4_xts_decrypt;
736 xctx->stream = aes192_t4_xts_decrypt;
740 xctx->stream = aes256_t4_xts_decrypt;
747 aes_t4_set_encrypt_key(key + ctx->key_len / 2,
748 ctx->key_len * 4, &xctx->ks2.ks);
749 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
751 xctx->xts.key1 = &xctx->ks1;
755 xctx->xts.key2 = &xctx->ks2;
756 memcpy(ctx->iv, iv, 16);
762 # define aes_t4_xts_cipher aes_xts_cipher
763 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
764 const unsigned char *in, size_t len);
766 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
767 const unsigned char *iv, int enc)
769 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
773 int bits = ctx->key_len * 8;
774 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
775 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
776 &cctx->ks, (block128_f) aes_t4_encrypt);
780 cctx->str = enc ? (ccm128_f) aes128_t4_ccm64_encrypt :
781 (ccm128_f) ae128_t4_ccm64_decrypt;
784 cctx->str = enc ? (ccm128_f) aes192_t4_ccm64_encrypt :
785 (ccm128_f) ae192_t4_ccm64_decrypt;
788 cctx->str = enc ? (ccm128_f) aes256_t4_ccm64_encrypt :
789 (ccm128_f) ae256_t4_ccm64_decrypt;
800 memcpy(ctx->iv, iv, 15 - cctx->L);
806 # define aes_t4_ccm_cipher aes_ccm_cipher
807 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
808 const unsigned char *in, size_t len);
810 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
811 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
812 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
813 flags|EVP_CIPH_##MODE##_MODE, \
815 aes_t4_##mode##_cipher, \
817 sizeof(EVP_AES_KEY), \
818 NULL,NULL,NULL,NULL }; \
819 static const EVP_CIPHER aes_##keylen##_##mode = { \
820 nid##_##keylen##_##nmode,blocksize, \
822 flags|EVP_CIPH_##MODE##_MODE, \
824 aes_##mode##_cipher, \
826 sizeof(EVP_AES_KEY), \
827 NULL,NULL,NULL,NULL }; \
828 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
829 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
831 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
832 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
833 nid##_##keylen##_##mode,blocksize, \
834 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
835 flags|EVP_CIPH_##MODE##_MODE, \
836 aes_t4_##mode##_init_key, \
837 aes_t4_##mode##_cipher, \
838 aes_##mode##_cleanup, \
839 sizeof(EVP_AES_##MODE##_CTX), \
840 NULL,NULL,aes_##mode##_ctrl,NULL }; \
841 static const EVP_CIPHER aes_##keylen##_##mode = { \
842 nid##_##keylen##_##mode,blocksize, \
843 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
844 flags|EVP_CIPH_##MODE##_MODE, \
845 aes_##mode##_init_key, \
846 aes_##mode##_cipher, \
847 aes_##mode##_cleanup, \
848 sizeof(EVP_AES_##MODE##_CTX), \
849 NULL,NULL,aes_##mode##_ctrl,NULL }; \
850 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
851 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
855 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
856 static const EVP_CIPHER aes_##keylen##_##mode = { \
857 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
858 flags|EVP_CIPH_##MODE##_MODE, \
860 aes_##mode##_cipher, \
862 sizeof(EVP_AES_KEY), \
863 NULL,NULL,NULL,NULL }; \
864 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
865 { return &aes_##keylen##_##mode; }
867 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
868 static const EVP_CIPHER aes_##keylen##_##mode = { \
869 nid##_##keylen##_##mode,blocksize, \
870 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
871 flags|EVP_CIPH_##MODE##_MODE, \
872 aes_##mode##_init_key, \
873 aes_##mode##_cipher, \
874 aes_##mode##_cleanup, \
875 sizeof(EVP_AES_##MODE##_CTX), \
876 NULL,NULL,aes_##mode##_ctrl,NULL }; \
877 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
878 { return &aes_##keylen##_##mode; }
881 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
882 # include "arm_arch.h"
883 # if __ARM_MAX_ARCH__>=7
884 # if defined(BSAES_ASM)
885 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
887 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
888 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
889 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
890 # define HWAES_encrypt aes_v8_encrypt
891 # define HWAES_decrypt aes_v8_decrypt
892 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
893 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
897 # if defined(HWAES_CAPABLE)
898 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
900 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
902 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
904 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
906 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
907 size_t length, const AES_KEY *key,
908 unsigned char *ivec, const int enc);
909 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
910 size_t len, const AES_KEY *key,
911 const unsigned char ivec[16]);
914 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
915 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
916 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
917 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
918 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
919 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
920 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
921 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
923 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
924 const unsigned char *iv, int enc)
927 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
929 mode = ctx->cipher->flags & EVP_CIPH_MODE;
930 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
932 # ifdef HWAES_CAPABLE
934 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
935 dat->block = (block128_f) HWAES_decrypt;
936 dat->stream.cbc = NULL;
937 # ifdef HWAES_cbc_encrypt
938 if (mode == EVP_CIPH_CBC_MODE)
939 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
943 # ifdef BSAES_CAPABLE
944 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
945 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
946 dat->block = (block128_f) AES_decrypt;
947 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
950 # ifdef VPAES_CAPABLE
952 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
953 dat->block = (block128_f) vpaes_decrypt;
954 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
955 (cbc128_f) vpaes_cbc_encrypt : NULL;
959 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
960 dat->block = (block128_f) AES_decrypt;
961 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
962 (cbc128_f) AES_cbc_encrypt : NULL;
964 # ifdef HWAES_CAPABLE
966 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
967 dat->block = (block128_f) HWAES_encrypt;
968 dat->stream.cbc = NULL;
969 # ifdef HWAES_cbc_encrypt
970 if (mode == EVP_CIPH_CBC_MODE)
971 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
974 # ifdef HWAES_ctr32_encrypt_blocks
975 if (mode == EVP_CIPH_CTR_MODE)
976 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
979 (void)0; /* terminate potentially open 'else' */
982 # ifdef BSAES_CAPABLE
983 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
984 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
985 dat->block = (block128_f) AES_encrypt;
986 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
989 # ifdef VPAES_CAPABLE
991 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
992 dat->block = (block128_f) vpaes_encrypt;
993 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
994 (cbc128_f) vpaes_cbc_encrypt : NULL;
998 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
999 dat->block = (block128_f) AES_encrypt;
1000 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1001 (cbc128_f) AES_cbc_encrypt : NULL;
1003 if (mode == EVP_CIPH_CTR_MODE)
1004 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1009 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1016 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1017 const unsigned char *in, size_t len)
1019 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1021 if (dat->stream.cbc)
1022 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1023 else if (ctx->encrypt)
1024 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1026 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1031 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1032 const unsigned char *in, size_t len)
1034 size_t bl = ctx->cipher->block_size;
1036 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1041 for (i = 0, len -= bl; i <= len; i += bl)
1042 (*dat->block) (in + i, out + i, &dat->ks);
1047 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1048 const unsigned char *in, size_t len)
1050 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1052 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1053 ctx->iv, &ctx->num, dat->block);
1057 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1058 const unsigned char *in, size_t len)
1060 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1062 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1063 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1067 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1068 const unsigned char *in, size_t len)
1070 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1072 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1073 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1077 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1078 const unsigned char *in, size_t len)
1080 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1082 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1083 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1084 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1088 while (len >= MAXBITCHUNK) {
1089 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1090 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1096 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1097 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1102 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1103 const unsigned char *in, size_t len)
1105 unsigned int num = ctx->num;
1106 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1108 if (dat->stream.ctr)
1109 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1110 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1112 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1113 ctx->iv, ctx->buf, &num, dat->block);
1114 ctx->num = (size_t)num;
1118 BLOCK_CIPHER_generic_pack(NID_aes, 128, EVP_CIPH_FLAG_FIPS)
1119 BLOCK_CIPHER_generic_pack(NID_aes, 192, EVP_CIPH_FLAG_FIPS)
1120 BLOCK_CIPHER_generic_pack(NID_aes, 256, EVP_CIPH_FLAG_FIPS)
1122 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1124 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1127 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1128 if (gctx->iv != c->iv)
1129 OPENSSL_free(gctx->iv);
1133 /* increment counter (64-bit int) by 1 */
1134 static void ctr64_inc(unsigned char *counter)
1149 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1151 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1156 gctx->ivlen = c->cipher->iv_len;
1160 gctx->tls_aad_len = -1;
1163 case EVP_CTRL_GCM_SET_IVLEN:
1166 /* Allocate memory for IV if needed */
1167 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1168 if (gctx->iv != c->iv)
1169 OPENSSL_free(gctx->iv);
1170 gctx->iv = OPENSSL_malloc(arg);
1177 case EVP_CTRL_GCM_SET_TAG:
1178 if (arg <= 0 || arg > 16 || c->encrypt)
1180 memcpy(c->buf, ptr, arg);
1184 case EVP_CTRL_GCM_GET_TAG:
1185 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1187 memcpy(ptr, c->buf, arg);
1190 case EVP_CTRL_GCM_SET_IV_FIXED:
1191 /* Special case: -1 length restores whole IV */
1193 memcpy(gctx->iv, ptr, gctx->ivlen);
1198 * Fixed field must be at least 4 bytes and invocation field at least
1201 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1204 memcpy(gctx->iv, ptr, arg);
1205 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1210 case EVP_CTRL_GCM_IV_GEN:
1211 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1213 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1214 if (arg <= 0 || arg > gctx->ivlen)
1216 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1218 * Invocation field will be at least 8 bytes in size and so no need
1219 * to check wrap around or increment more than last 8 bytes.
1221 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1225 case EVP_CTRL_GCM_SET_IV_INV:
1226 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1228 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1229 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1233 case EVP_CTRL_AEAD_TLS1_AAD:
1234 /* Save the AAD for later use */
1235 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1237 memcpy(c->buf, ptr, arg);
1238 gctx->tls_aad_len = arg;
1240 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1241 /* Correct length for explicit IV */
1242 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1244 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1245 /* If decrypting correct for tag too */
1247 if (len < EVP_GCM_TLS_TAG_LEN)
1249 len -= EVP_GCM_TLS_TAG_LEN;
1251 c->buf[arg - 2] = len >> 8;
1252 c->buf[arg - 1] = len & 0xff;
1254 /* Extra padding: tag appended to record */
1255 return EVP_GCM_TLS_TAG_LEN;
1259 EVP_CIPHER_CTX *out = ptr;
1260 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1261 if (gctx->gcm.key) {
1262 if (gctx->gcm.key != &gctx->ks)
1264 gctx_out->gcm.key = &gctx_out->ks;
1266 if (gctx->iv == c->iv)
1267 gctx_out->iv = out->iv;
1269 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1272 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1283 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1284 const unsigned char *iv, int enc)
1286 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1291 # ifdef HWAES_CAPABLE
1292 if (HWAES_CAPABLE) {
1293 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1294 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1295 (block128_f) HWAES_encrypt);
1296 # ifdef HWAES_ctr32_encrypt_blocks
1297 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1304 # ifdef BSAES_CAPABLE
1305 if (BSAES_CAPABLE) {
1306 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1307 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1308 (block128_f) AES_encrypt);
1309 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1313 # ifdef VPAES_CAPABLE
1314 if (VPAES_CAPABLE) {
1315 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1316 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1317 (block128_f) vpaes_encrypt);
1322 (void)0; /* terminate potentially open 'else' */
1324 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1325 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1326 (block128_f) AES_encrypt);
1328 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1335 * If we have an iv can set it directly, otherwise use saved IV.
1337 if (iv == NULL && gctx->iv_set)
1340 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1345 /* If key set use IV, otherwise copy */
1347 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1349 memcpy(gctx->iv, iv, gctx->ivlen);
1357 * Handle TLS GCM packet format. This consists of the last portion of the IV
1358 * followed by the payload and finally the tag. On encrypt generate IV,
1359 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1363 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1364 const unsigned char *in, size_t len)
1366 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1368 /* Encrypt/decrypt must be performed in place */
1370 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1373 * Set IV from start of buffer or generate IV and write to start of
1376 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1377 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1378 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1381 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1383 /* Fix buffer and length to point to payload */
1384 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1385 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1386 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1388 /* Encrypt payload */
1391 # if defined(AES_GCM_ASM)
1392 if (len >= 32 && AES_GCM_ASM(gctx)) {
1393 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1396 bulk = AES_gcm_encrypt(in, out, len,
1398 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1399 gctx->gcm.len.u[1] += bulk;
1402 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1405 len - bulk, gctx->ctr))
1409 # if defined(AES_GCM_ASM2)
1410 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1411 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1414 bulk = AES_gcm_encrypt(in, out, len,
1416 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1417 gctx->gcm.len.u[1] += bulk;
1420 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1421 in + bulk, out + bulk, len - bulk))
1425 /* Finally write tag */
1426 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1427 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1432 # if defined(AES_GCM_ASM)
1433 if (len >= 16 && AES_GCM_ASM(gctx)) {
1434 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1437 bulk = AES_gcm_decrypt(in, out, len,
1439 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1440 gctx->gcm.len.u[1] += bulk;
1443 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1446 len - bulk, gctx->ctr))
1450 # if defined(AES_GCM_ASM2)
1451 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1452 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1455 bulk = AES_gcm_decrypt(in, out, len,
1457 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1458 gctx->gcm.len.u[1] += bulk;
1461 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1462 in + bulk, out + bulk, len - bulk))
1466 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1467 /* If tag mismatch wipe buffer */
1468 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1469 OPENSSL_cleanse(out, len);
1477 gctx->tls_aad_len = -1;
1481 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1482 const unsigned char *in, size_t len)
1484 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1485 /* If not set up, return error */
1489 if (gctx->tls_aad_len >= 0)
1490 return aes_gcm_tls_cipher(ctx, out, in, len);
1496 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1498 } else if (ctx->encrypt) {
1501 # if defined(AES_GCM_ASM)
1502 if (len >= 32 && AES_GCM_ASM(gctx)) {
1503 size_t res = (16 - gctx->gcm.mres) % 16;
1505 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1508 bulk = AES_gcm_encrypt(in + res,
1509 out + res, len - res,
1510 gctx->gcm.key, gctx->gcm.Yi.c,
1512 gctx->gcm.len.u[1] += bulk;
1516 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1519 len - bulk, gctx->ctr))
1523 # if defined(AES_GCM_ASM2)
1524 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1525 size_t res = (16 - gctx->gcm.mres) % 16;
1527 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1530 bulk = AES_gcm_encrypt(in + res,
1531 out + res, len - res,
1532 gctx->gcm.key, gctx->gcm.Yi.c,
1534 gctx->gcm.len.u[1] += bulk;
1538 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1539 in + bulk, out + bulk, len - bulk))
1545 # if defined(AES_GCM_ASM)
1546 if (len >= 16 && AES_GCM_ASM(gctx)) {
1547 size_t res = (16 - gctx->gcm.mres) % 16;
1549 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1552 bulk = AES_gcm_decrypt(in + res,
1553 out + res, len - res,
1555 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1556 gctx->gcm.len.u[1] += bulk;
1560 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1563 len - bulk, gctx->ctr))
1567 # if defined(AES_GCM_ASM2)
1568 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1569 size_t res = (16 - gctx->gcm.mres) % 16;
1571 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1574 bulk = AES_gcm_decrypt(in + res,
1575 out + res, len - res,
1577 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1578 gctx->gcm.len.u[1] += bulk;
1582 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1583 in + bulk, out + bulk, len - bulk))
1589 if (!ctx->encrypt) {
1590 if (gctx->taglen < 0)
1592 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1597 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1599 /* Don't reuse the IV */
1606 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1607 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1608 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1609 | EVP_CIPH_CUSTOM_COPY)
1611 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1612 EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER |
1614 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1615 EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER |
1617 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1618 EVP_CIPH_FLAG_FIPS | EVP_CIPH_FLAG_AEAD_CIPHER |
1621 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1623 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1624 if (type == EVP_CTRL_COPY) {
1625 EVP_CIPHER_CTX *out = ptr;
1626 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1627 if (xctx->xts.key1) {
1628 if (xctx->xts.key1 != &xctx->ks1)
1630 xctx_out->xts.key1 = &xctx_out->ks1;
1632 if (xctx->xts.key2) {
1633 if (xctx->xts.key2 != &xctx->ks2)
1635 xctx_out->xts.key2 = &xctx_out->ks2;
1638 } else if (type != EVP_CTRL_INIT)
1640 /* key1 and key2 are used as an indicator both key and IV are set */
1641 xctx->xts.key1 = NULL;
1642 xctx->xts.key2 = NULL;
1646 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1647 const unsigned char *iv, int enc)
1649 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1656 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1658 xctx->stream = NULL;
1660 /* key_len is two AES keys */
1661 # ifdef HWAES_CAPABLE
1662 if (HWAES_CAPABLE) {
1664 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1666 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1668 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1670 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1673 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1674 ctx->key_len * 4, &xctx->ks2.ks);
1675 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1677 xctx->xts.key1 = &xctx->ks1;
1681 # ifdef BSAES_CAPABLE
1683 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1686 # ifdef VPAES_CAPABLE
1687 if (VPAES_CAPABLE) {
1689 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1691 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1693 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1695 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1698 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1699 ctx->key_len * 4, &xctx->ks2.ks);
1700 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1702 xctx->xts.key1 = &xctx->ks1;
1706 (void)0; /* terminate potentially open 'else' */
1709 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1710 xctx->xts.block1 = (block128_f) AES_encrypt;
1712 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1713 xctx->xts.block1 = (block128_f) AES_decrypt;
1716 AES_set_encrypt_key(key + ctx->key_len / 2,
1717 ctx->key_len * 4, &xctx->ks2.ks);
1718 xctx->xts.block2 = (block128_f) AES_encrypt;
1720 xctx->xts.key1 = &xctx->ks1;
1724 xctx->xts.key2 = &xctx->ks2;
1725 memcpy(ctx->iv, iv, 16);
1731 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1732 const unsigned char *in, size_t len)
1734 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1735 if (!xctx->xts.key1 || !xctx->xts.key2)
1737 if (!out || !in || len < AES_BLOCK_SIZE)
1740 (*xctx->stream) (in, out, len,
1741 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1742 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1748 # define aes_xts_cleanup NULL
1750 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1751 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1752 | EVP_CIPH_CUSTOM_COPY)
1754 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS,
1755 EVP_CIPH_FLAG_FIPS | XTS_FLAGS)
1756 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS,
1757 EVP_CIPH_FLAG_FIPS | XTS_FLAGS)
1759 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1761 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1772 case EVP_CTRL_CCM_SET_IVLEN:
1774 case EVP_CTRL_CCM_SET_L:
1775 if (arg < 2 || arg > 8)
1780 case EVP_CTRL_CCM_SET_TAG:
1781 if ((arg & 1) || arg < 4 || arg > 16)
1783 if (c->encrypt && ptr)
1787 memcpy(c->buf, ptr, arg);
1792 case EVP_CTRL_CCM_GET_TAG:
1793 if (!c->encrypt || !cctx->tag_set)
1795 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1804 EVP_CIPHER_CTX *out = ptr;
1805 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1806 if (cctx->ccm.key) {
1807 if (cctx->ccm.key != &cctx->ks)
1809 cctx_out->ccm.key = &cctx_out->ks;
1820 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1821 const unsigned char *iv, int enc)
1823 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1828 # ifdef HWAES_CAPABLE
1829 if (HWAES_CAPABLE) {
1830 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1832 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1833 &cctx->ks, (block128_f) HWAES_encrypt);
1839 # ifdef VPAES_CAPABLE
1840 if (VPAES_CAPABLE) {
1841 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1842 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1843 &cctx->ks, (block128_f) vpaes_encrypt);
1849 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1850 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1851 &cctx->ks, (block128_f) AES_encrypt);
1856 memcpy(ctx->iv, iv, 15 - cctx->L);
1862 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1863 const unsigned char *in, size_t len)
1865 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1866 CCM128_CONTEXT *ccm = &cctx->ccm;
1867 /* If not set up, return error */
1868 if (!cctx->iv_set && !cctx->key_set)
1870 if (!ctx->encrypt && !cctx->tag_set)
1874 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1879 /* If have AAD need message length */
1880 if (!cctx->len_set && len)
1882 CRYPTO_ccm128_aad(ccm, in, len);
1885 /* EVP_*Final() doesn't return any data */
1888 /* If not set length yet do it */
1889 if (!cctx->len_set) {
1890 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1895 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1897 CRYPTO_ccm128_encrypt(ccm, in, out, len))
1903 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
1905 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
1906 unsigned char tag[16];
1907 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
1908 if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
1913 OPENSSL_cleanse(out, len);
1922 # define aes_ccm_cleanup NULL
1924 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
1925 EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS)
1926 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
1927 EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS)
1928 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
1929 EVP_CIPH_FLAG_FIPS | CUSTOM_FLAGS)
1936 /* Indicates if IV has been set */
1940 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1941 const unsigned char *iv, int enc)
1943 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
1948 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
1950 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
1955 memcpy(ctx->iv, iv, 8);
1961 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1962 const unsigned char *in, size_t inlen)
1964 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
1970 if (ctx->encrypt && inlen < 8)
1972 if (!ctx->encrypt && inlen < 16)
1981 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
1982 (block128_f) AES_encrypt);
1984 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
1985 (block128_f) AES_decrypt);
1986 return rv ? (int)rv : -1;
1989 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
1990 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1991 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
1993 static const EVP_CIPHER aes_128_wrap = {
1995 8, 16, 8, WRAP_FLAGS,
1996 aes_wrap_init_key, aes_wrap_cipher,
1998 sizeof(EVP_AES_WRAP_CTX),
1999 NULL, NULL, NULL, NULL
2002 const EVP_CIPHER *EVP_aes_128_wrap(void)
2004 return &aes_128_wrap;
2007 static const EVP_CIPHER aes_192_wrap = {
2009 8, 24, 8, WRAP_FLAGS,
2010 aes_wrap_init_key, aes_wrap_cipher,
2012 sizeof(EVP_AES_WRAP_CTX),
2013 NULL, NULL, NULL, NULL
2016 const EVP_CIPHER *EVP_aes_192_wrap(void)
2018 return &aes_192_wrap;
2021 static const EVP_CIPHER aes_256_wrap = {
2023 8, 32, 8, WRAP_FLAGS,
2024 aes_wrap_init_key, aes_wrap_cipher,
2026 sizeof(EVP_AES_WRAP_CTX),
2027 NULL, NULL, NULL, NULL
2030 const EVP_CIPHER *EVP_aes_256_wrap(void)
2032 return &aes_256_wrap;