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 # if defined(VPAES_ASM)
984 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
986 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
987 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
988 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
989 # define HWAES_encrypt aes_v8_encrypt
990 # define HWAES_decrypt aes_v8_decrypt
991 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
992 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
996 # if defined(HWAES_CAPABLE)
997 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
999 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1001 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1002 const AES_KEY *key);
1003 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1004 const AES_KEY *key);
1005 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1006 size_t length, const AES_KEY *key,
1007 unsigned char *ivec, const int enc);
1008 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1009 size_t len, const AES_KEY *key,
1010 const unsigned char ivec[16]);
1013 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1014 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1015 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1016 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1017 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1018 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1019 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1020 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1022 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1023 const unsigned char *iv, int enc)
1026 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1028 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1029 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1031 # ifdef HWAES_CAPABLE
1032 if (HWAES_CAPABLE) {
1033 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1034 dat->block = (block128_f) HWAES_decrypt;
1035 dat->stream.cbc = NULL;
1036 # ifdef HWAES_cbc_encrypt
1037 if (mode == EVP_CIPH_CBC_MODE)
1038 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1042 # ifdef BSAES_CAPABLE
1043 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1044 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1045 dat->block = (block128_f) AES_decrypt;
1046 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1049 # ifdef VPAES_CAPABLE
1050 if (VPAES_CAPABLE) {
1051 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1052 dat->block = (block128_f) vpaes_decrypt;
1053 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1054 (cbc128_f) vpaes_cbc_encrypt : NULL;
1058 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1059 dat->block = (block128_f) AES_decrypt;
1060 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1061 (cbc128_f) AES_cbc_encrypt : NULL;
1063 # ifdef HWAES_CAPABLE
1064 if (HWAES_CAPABLE) {
1065 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1066 dat->block = (block128_f) HWAES_encrypt;
1067 dat->stream.cbc = NULL;
1068 # ifdef HWAES_cbc_encrypt
1069 if (mode == EVP_CIPH_CBC_MODE)
1070 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1073 # ifdef HWAES_ctr32_encrypt_blocks
1074 if (mode == EVP_CIPH_CTR_MODE)
1075 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1078 (void)0; /* terminate potentially open 'else' */
1081 # ifdef BSAES_CAPABLE
1082 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1083 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1084 dat->block = (block128_f) AES_encrypt;
1085 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1088 # ifdef VPAES_CAPABLE
1089 if (VPAES_CAPABLE) {
1090 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1091 dat->block = (block128_f) vpaes_encrypt;
1092 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1093 (cbc128_f) vpaes_cbc_encrypt : NULL;
1097 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1098 dat->block = (block128_f) AES_encrypt;
1099 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1100 (cbc128_f) AES_cbc_encrypt : NULL;
1102 if (mode == EVP_CIPH_CTR_MODE)
1103 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1108 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1115 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1116 const unsigned char *in, size_t len)
1118 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1120 if (dat->stream.cbc)
1121 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1122 else if (ctx->encrypt)
1123 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1125 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1130 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1131 const unsigned char *in, size_t len)
1133 size_t bl = ctx->cipher->block_size;
1135 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1140 for (i = 0, len -= bl; i <= len; i += bl)
1141 (*dat->block) (in + i, out + i, &dat->ks);
1146 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1147 const unsigned char *in, size_t len)
1149 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1151 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1152 ctx->iv, &ctx->num, dat->block);
1156 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1157 const unsigned char *in, size_t len)
1159 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1161 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1162 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1166 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1167 const unsigned char *in, size_t len)
1169 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1171 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1172 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1176 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1177 const unsigned char *in, size_t len)
1179 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1181 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1182 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1183 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1187 while (len >= MAXBITCHUNK) {
1188 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1189 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1193 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1194 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1199 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1200 const unsigned char *in, size_t len)
1202 unsigned int num = ctx->num;
1203 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1205 if (dat->stream.ctr)
1206 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1207 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1209 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1210 ctx->iv, ctx->buf, &num, dat->block);
1211 ctx->num = (size_t)num;
1215 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1216 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1217 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1219 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1221 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1222 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1223 if (gctx->iv != c->iv)
1224 OPENSSL_free(gctx->iv);
1228 /* increment counter (64-bit int) by 1 */
1229 static void ctr64_inc(unsigned char *counter)
1244 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1246 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1251 gctx->ivlen = c->cipher->iv_len;
1255 gctx->tls_aad_len = -1;
1258 case EVP_CTRL_AEAD_SET_IVLEN:
1261 /* Allocate memory for IV if needed */
1262 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1263 if (gctx->iv != c->iv)
1264 OPENSSL_free(gctx->iv);
1265 gctx->iv = OPENSSL_malloc(arg);
1272 case EVP_CTRL_AEAD_SET_TAG:
1273 if (arg <= 0 || arg > 16 || c->encrypt)
1275 memcpy(c->buf, ptr, arg);
1279 case EVP_CTRL_AEAD_GET_TAG:
1280 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1282 memcpy(ptr, c->buf, arg);
1285 case EVP_CTRL_GCM_SET_IV_FIXED:
1286 /* Special case: -1 length restores whole IV */
1288 memcpy(gctx->iv, ptr, gctx->ivlen);
1293 * Fixed field must be at least 4 bytes and invocation field at least
1296 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1299 memcpy(gctx->iv, ptr, arg);
1300 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1305 case EVP_CTRL_GCM_IV_GEN:
1306 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1308 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1309 if (arg <= 0 || arg > gctx->ivlen)
1311 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1313 * Invocation field will be at least 8 bytes in size and so no need
1314 * to check wrap around or increment more than last 8 bytes.
1316 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1320 case EVP_CTRL_GCM_SET_IV_INV:
1321 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1323 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1324 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1328 case EVP_CTRL_AEAD_TLS1_AAD:
1329 /* Save the AAD for later use */
1332 memcpy(c->buf, ptr, arg);
1333 gctx->tls_aad_len = arg;
1335 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1336 /* Correct length for explicit IV */
1337 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1338 /* If decrypting correct for tag too */
1340 len -= EVP_GCM_TLS_TAG_LEN;
1341 c->buf[arg - 2] = len >> 8;
1342 c->buf[arg - 1] = len & 0xff;
1344 /* Extra padding: tag appended to record */
1345 return EVP_GCM_TLS_TAG_LEN;
1349 EVP_CIPHER_CTX *out = ptr;
1350 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1351 if (gctx->gcm.key) {
1352 if (gctx->gcm.key != &gctx->ks)
1354 gctx_out->gcm.key = &gctx_out->ks;
1356 if (gctx->iv == c->iv)
1357 gctx_out->iv = out->iv;
1359 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1362 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1373 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1374 const unsigned char *iv, int enc)
1376 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1381 # ifdef HWAES_CAPABLE
1382 if (HWAES_CAPABLE) {
1383 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1384 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1385 (block128_f) HWAES_encrypt);
1386 # ifdef HWAES_ctr32_encrypt_blocks
1387 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1394 # ifdef BSAES_CAPABLE
1395 if (BSAES_CAPABLE) {
1396 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1397 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1398 (block128_f) AES_encrypt);
1399 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1403 # ifdef VPAES_CAPABLE
1404 if (VPAES_CAPABLE) {
1405 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1406 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1407 (block128_f) vpaes_encrypt);
1412 (void)0; /* terminate potentially open 'else' */
1414 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1415 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1416 (block128_f) AES_encrypt);
1418 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1425 * If we have an iv can set it directly, otherwise use saved IV.
1427 if (iv == NULL && gctx->iv_set)
1430 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1435 /* If key set use IV, otherwise copy */
1437 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1439 memcpy(gctx->iv, iv, gctx->ivlen);
1447 * Handle TLS GCM packet format. This consists of the last portion of the IV
1448 * followed by the payload and finally the tag. On encrypt generate IV,
1449 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1453 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1454 const unsigned char *in, size_t len)
1456 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1458 /* Encrypt/decrypt must be performed in place */
1460 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1463 * Set IV from start of buffer or generate IV and write to start of
1466 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1467 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1468 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1471 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1473 /* Fix buffer and length to point to payload */
1474 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1475 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1476 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1478 /* Encrypt payload */
1481 # if defined(AES_GCM_ASM)
1482 if (len >= 32 && AES_GCM_ASM(gctx)) {
1483 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1486 bulk = AES_gcm_encrypt(in, out, len,
1488 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1489 gctx->gcm.len.u[1] += bulk;
1492 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1495 len - bulk, gctx->ctr))
1499 # if defined(AES_GCM_ASM2)
1500 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1501 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1504 bulk = AES_gcm_encrypt(in, out, len,
1506 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1507 gctx->gcm.len.u[1] += bulk;
1510 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1511 in + bulk, out + bulk, len - bulk))
1515 /* Finally write tag */
1516 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1517 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1522 # if defined(AES_GCM_ASM)
1523 if (len >= 16 && AES_GCM_ASM(gctx)) {
1524 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1527 bulk = AES_gcm_decrypt(in, out, len,
1529 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1530 gctx->gcm.len.u[1] += bulk;
1533 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1536 len - bulk, gctx->ctr))
1540 # if defined(AES_GCM_ASM2)
1541 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1542 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1545 bulk = AES_gcm_decrypt(in, out, len,
1547 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1548 gctx->gcm.len.u[1] += bulk;
1551 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1552 in + bulk, out + bulk, len - bulk))
1556 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1557 /* If tag mismatch wipe buffer */
1558 if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1559 OPENSSL_cleanse(out, len);
1567 gctx->tls_aad_len = -1;
1571 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1572 const unsigned char *in, size_t len)
1574 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1575 /* If not set up, return error */
1579 if (gctx->tls_aad_len >= 0)
1580 return aes_gcm_tls_cipher(ctx, out, in, len);
1586 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1588 } else if (ctx->encrypt) {
1591 # if defined(AES_GCM_ASM)
1592 if (len >= 32 && AES_GCM_ASM(gctx)) {
1593 size_t res = (16 - gctx->gcm.mres) % 16;
1595 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1598 bulk = AES_gcm_encrypt(in + res,
1599 out + res, len - res,
1600 gctx->gcm.key, gctx->gcm.Yi.c,
1602 gctx->gcm.len.u[1] += bulk;
1606 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1609 len - bulk, gctx->ctr))
1613 # if defined(AES_GCM_ASM2)
1614 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1615 size_t res = (16 - gctx->gcm.mres) % 16;
1617 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1620 bulk = AES_gcm_encrypt(in + res,
1621 out + res, len - res,
1622 gctx->gcm.key, gctx->gcm.Yi.c,
1624 gctx->gcm.len.u[1] += bulk;
1628 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1629 in + bulk, out + bulk, len - bulk))
1635 # if defined(AES_GCM_ASM)
1636 if (len >= 16 && AES_GCM_ASM(gctx)) {
1637 size_t res = (16 - gctx->gcm.mres) % 16;
1639 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1642 bulk = AES_gcm_decrypt(in + res,
1643 out + res, len - res,
1645 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1646 gctx->gcm.len.u[1] += bulk;
1650 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1653 len - bulk, gctx->ctr))
1657 # if defined(AES_GCM_ASM2)
1658 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1659 size_t res = (16 - gctx->gcm.mres) % 16;
1661 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1664 bulk = AES_gcm_decrypt(in + res,
1665 out + res, len - res,
1667 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1668 gctx->gcm.len.u[1] += bulk;
1672 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1673 in + bulk, out + bulk, len - bulk))
1679 if (!ctx->encrypt) {
1680 if (gctx->taglen < 0)
1682 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1687 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1689 /* Don't reuse the IV */
1696 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1697 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1698 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1699 | EVP_CIPH_CUSTOM_COPY)
1701 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1702 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1703 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1704 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1705 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1706 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1708 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1710 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1711 if (type == EVP_CTRL_COPY) {
1712 EVP_CIPHER_CTX *out = ptr;
1713 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1714 if (xctx->xts.key1) {
1715 if (xctx->xts.key1 != &xctx->ks1)
1717 xctx_out->xts.key1 = &xctx_out->ks1;
1719 if (xctx->xts.key2) {
1720 if (xctx->xts.key2 != &xctx->ks2)
1722 xctx_out->xts.key2 = &xctx_out->ks2;
1725 } else if (type != EVP_CTRL_INIT)
1727 /* key1 and key2 are used as an indicator both key and IV are set */
1728 xctx->xts.key1 = NULL;
1729 xctx->xts.key2 = NULL;
1733 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1734 const unsigned char *iv, int enc)
1736 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1743 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1745 xctx->stream = NULL;
1747 /* key_len is two AES keys */
1748 # ifdef HWAES_CAPABLE
1749 if (HWAES_CAPABLE) {
1751 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1753 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1755 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1757 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1760 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1761 ctx->key_len * 4, &xctx->ks2.ks);
1762 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1764 xctx->xts.key1 = &xctx->ks1;
1768 # ifdef BSAES_CAPABLE
1770 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1773 # ifdef VPAES_CAPABLE
1774 if (VPAES_CAPABLE) {
1776 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1778 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1780 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1782 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1785 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1786 ctx->key_len * 4, &xctx->ks2.ks);
1787 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1789 xctx->xts.key1 = &xctx->ks1;
1793 (void)0; /* terminate potentially open 'else' */
1796 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1797 xctx->xts.block1 = (block128_f) AES_encrypt;
1799 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1800 xctx->xts.block1 = (block128_f) AES_decrypt;
1803 AES_set_encrypt_key(key + ctx->key_len / 2,
1804 ctx->key_len * 4, &xctx->ks2.ks);
1805 xctx->xts.block2 = (block128_f) AES_encrypt;
1807 xctx->xts.key1 = &xctx->ks1;
1811 xctx->xts.key2 = &xctx->ks2;
1812 memcpy(ctx->iv, iv, 16);
1818 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1819 const unsigned char *in, size_t len)
1821 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1822 if (!xctx->xts.key1 || !xctx->xts.key2)
1824 if (!out || !in || len < AES_BLOCK_SIZE)
1827 (*xctx->stream) (in, out, len,
1828 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1829 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1835 # define aes_xts_cleanup NULL
1837 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1838 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1839 | EVP_CIPH_CUSTOM_COPY)
1841 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1842 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1844 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1846 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1857 case EVP_CTRL_AEAD_SET_IVLEN:
1859 case EVP_CTRL_CCM_SET_L:
1860 if (arg < 2 || arg > 8)
1865 case EVP_CTRL_AEAD_SET_TAG:
1866 if ((arg & 1) || arg < 4 || arg > 16)
1868 if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
1872 memcpy(c->buf, ptr, arg);
1877 case EVP_CTRL_AEAD_GET_TAG:
1878 if (!c->encrypt || !cctx->tag_set)
1880 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1889 EVP_CIPHER_CTX *out = ptr;
1890 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1891 if (cctx->ccm.key) {
1892 if (cctx->ccm.key != &cctx->ks)
1894 cctx_out->ccm.key = &cctx_out->ks;
1905 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1906 const unsigned char *iv, int enc)
1908 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1913 # ifdef HWAES_CAPABLE
1914 if (HWAES_CAPABLE) {
1915 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1917 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1918 &cctx->ks, (block128_f) HWAES_encrypt);
1924 # ifdef VPAES_CAPABLE
1925 if (VPAES_CAPABLE) {
1926 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1927 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1928 &cctx->ks, (block128_f) vpaes_encrypt);
1934 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1935 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1936 &cctx->ks, (block128_f) AES_encrypt);
1941 memcpy(ctx->iv, iv, 15 - cctx->L);
1947 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1948 const unsigned char *in, size_t len)
1950 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1951 CCM128_CONTEXT *ccm = &cctx->ccm;
1952 /* If not set up, return error */
1953 if (!cctx->iv_set && !cctx->key_set)
1955 if (!ctx->encrypt && !cctx->tag_set)
1959 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1964 /* If have AAD need message length */
1965 if (!cctx->len_set && len)
1967 CRYPTO_ccm128_aad(ccm, in, len);
1970 /* EVP_*Final() doesn't return any data */
1973 /* If not set length yet do it */
1974 if (!cctx->len_set) {
1975 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1980 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1982 CRYPTO_ccm128_encrypt(ccm, in, out, len))
1988 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
1990 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
1991 unsigned char tag[16];
1992 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
1993 if (!memcmp(tag, ctx->buf, cctx->M))
1998 OPENSSL_cleanse(out, len);
2007 # define aes_ccm_cleanup NULL
2009 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2010 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2011 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2018 /* Indicates if IV has been set */
2022 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2023 const unsigned char *iv, int enc)
2025 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2030 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2032 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2037 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2043 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2044 const unsigned char *in, size_t inlen)
2046 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2048 /* AES wrap with padding has IV length of 4, without padding 8 */
2049 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2050 /* No final operation so always return zero length */
2053 /* Input length must always be non-zero */
2056 /* If decrypting need at least 16 bytes and multiple of 8 */
2057 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2059 /* If not padding input must be multiple of 8 */
2060 if (!pad && inlen & 0x7)
2064 /* If padding round up to multiple of 8 */
2066 inlen = (inlen + 7) / 8 * 8;
2071 * If not padding output will be exactly 8 bytes smaller than
2072 * input. If padding it will be at least 8 bytes smaller but we
2073 * don't know how much.
2080 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2082 (block128_f) AES_encrypt);
2084 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2086 (block128_f) AES_decrypt);
2089 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2090 out, in, inlen, (block128_f) AES_encrypt);
2092 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2093 out, in, inlen, (block128_f) AES_decrypt);
2095 return rv ? (int)rv : -1;
2098 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2099 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2100 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2102 static const EVP_CIPHER aes_128_wrap = {
2104 8, 16, 8, WRAP_FLAGS,
2105 aes_wrap_init_key, aes_wrap_cipher,
2107 sizeof(EVP_AES_WRAP_CTX),
2108 NULL, NULL, NULL, NULL
2111 const EVP_CIPHER *EVP_aes_128_wrap(void)
2113 return &aes_128_wrap;
2116 static const EVP_CIPHER aes_192_wrap = {
2118 8, 24, 8, WRAP_FLAGS,
2119 aes_wrap_init_key, aes_wrap_cipher,
2121 sizeof(EVP_AES_WRAP_CTX),
2122 NULL, NULL, NULL, NULL
2125 const EVP_CIPHER *EVP_aes_192_wrap(void)
2127 return &aes_192_wrap;
2130 static const EVP_CIPHER aes_256_wrap = {
2132 8, 32, 8, WRAP_FLAGS,
2133 aes_wrap_init_key, aes_wrap_cipher,
2135 sizeof(EVP_AES_WRAP_CTX),
2136 NULL, NULL, NULL, NULL
2139 const EVP_CIPHER *EVP_aes_256_wrap(void)
2141 return &aes_256_wrap;
2144 static const EVP_CIPHER aes_128_wrap_pad = {
2145 NID_id_aes128_wrap_pad,
2146 8, 16, 4, WRAP_FLAGS,
2147 aes_wrap_init_key, aes_wrap_cipher,
2149 sizeof(EVP_AES_WRAP_CTX),
2150 NULL, NULL, NULL, NULL
2153 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2155 return &aes_128_wrap_pad;
2158 static const EVP_CIPHER aes_192_wrap_pad = {
2159 NID_id_aes192_wrap_pad,
2160 8, 24, 4, WRAP_FLAGS,
2161 aes_wrap_init_key, aes_wrap_cipher,
2163 sizeof(EVP_AES_WRAP_CTX),
2164 NULL, NULL, NULL, NULL
2167 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2169 return &aes_192_wrap_pad;
2172 static const EVP_CIPHER aes_256_wrap_pad = {
2173 NID_id_aes256_wrap_pad,
2174 8, 32, 4, WRAP_FLAGS,
2175 aes_wrap_init_key, aes_wrap_cipher,
2177 sizeof(EVP_AES_WRAP_CTX),
2178 NULL, NULL, NULL, NULL
2181 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2183 return &aes_256_wrap_pad;
2186 # ifndef OPENSSL_NO_OCB
2187 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2189 EVP_AES_OCB_CTX *octx = c->cipher_data;
2190 EVP_CIPHER_CTX *newc;
2191 EVP_AES_OCB_CTX *new_octx;
2197 octx->ivlen = c->cipher->iv_len;
2200 octx->data_buf_len = 0;
2201 octx->aad_buf_len = 0;
2204 case EVP_CTRL_AEAD_SET_IVLEN:
2205 /* IV len must be 1 to 15 */
2206 if (arg <= 0 || arg > 15)
2212 case EVP_CTRL_AEAD_SET_TAG:
2214 /* Tag len must be 0 to 16 */
2215 if (arg < 0 || arg > 16)
2221 if (arg != octx->taglen || c->encrypt)
2223 memcpy(octx->tag, ptr, arg);
2226 case EVP_CTRL_AEAD_GET_TAG:
2227 if (arg != octx->taglen || !c->encrypt)
2230 memcpy(ptr, octx->tag, arg);
2234 newc = (EVP_CIPHER_CTX *)ptr;
2235 new_octx = newc->cipher_data;
2236 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2237 &new_octx->ksenc.ks,
2238 &new_octx->ksdec.ks);
2246 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2247 const unsigned char *iv, int enc)
2249 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2255 * We set both the encrypt and decrypt key here because decrypt
2256 * needs both. We could possibly optimise to remove setting the
2257 * decrypt for an encryption operation.
2259 # ifdef VPAES_CAPABLE
2260 if (VPAES_CAPABLE) {
2261 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2262 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2263 if (!CRYPTO_ocb128_init(&octx->ocb,
2264 &octx->ksenc.ks, &octx->ksdec.ks,
2265 (block128_f) vpaes_encrypt,
2266 (block128_f) vpaes_decrypt))
2271 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2272 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2273 if (!CRYPTO_ocb128_init(&octx->ocb,
2274 &octx->ksenc.ks, &octx->ksdec.ks,
2275 (block128_f) AES_encrypt,
2276 (block128_f) AES_decrypt))
2282 * If we have an iv we can set it directly, otherwise use saved IV.
2284 if (iv == NULL && octx->iv_set)
2287 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2294 /* If key set use IV, otherwise copy */
2296 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2298 memcpy(octx->iv, iv, octx->ivlen);
2304 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2305 const unsigned char *in, size_t len)
2309 int written_len = 0;
2310 size_t trailing_len;
2311 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2313 /* If IV or Key not set then return error */
2322 * Need to ensure we are only passing full blocks to low level OCB
2323 * routines. We do it here rather than in EVP_EncryptUpdate/
2324 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2325 * and those routines don't support that
2328 /* Are we dealing with AAD or normal data here? */
2330 buf = octx->aad_buf;
2331 buf_len = &(octx->aad_buf_len);
2333 buf = octx->data_buf;
2334 buf_len = &(octx->data_buf_len);
2338 * If we've got a partially filled buffer from a previous call then
2339 * use that data first
2342 unsigned int remaining;
2344 remaining = 16 - (*buf_len);
2345 if (remaining > len) {
2346 memcpy(buf + (*buf_len), in, len);
2350 memcpy(buf + (*buf_len), in, remaining);
2353 * If we get here we've filled the buffer, so process it
2358 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2360 } else if (ctx->encrypt) {
2361 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2364 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2371 /* Do we have a partial block to handle at the end? */
2372 trailing_len = len % 16;
2375 * If we've got some full blocks to handle, then process these first
2377 if (len != trailing_len) {
2379 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2381 } else if (ctx->encrypt) {
2382 if (!CRYPTO_ocb128_encrypt
2383 (&octx->ocb, in, out, len - trailing_len))
2386 if (!CRYPTO_ocb128_decrypt
2387 (&octx->ocb, in, out, len - trailing_len))
2390 written_len += len - trailing_len;
2391 in += len - trailing_len;
2394 /* Handle any trailing partial block */
2396 memcpy(buf, in, trailing_len);
2397 *buf_len = trailing_len;
2403 * First of all empty the buffer of any partial block that we might
2404 * have been provided - both for data and AAD
2406 if (octx->data_buf_len) {
2408 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2409 octx->data_buf_len))
2412 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2413 octx->data_buf_len))
2416 written_len = octx->data_buf_len;
2417 octx->data_buf_len = 0;
2419 if (octx->aad_buf_len) {
2420 if (!CRYPTO_ocb128_aad
2421 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2423 octx->aad_buf_len = 0;
2425 /* If decrypting then verify */
2426 if (!ctx->encrypt) {
2427 if (octx->taglen < 0)
2429 if (CRYPTO_ocb128_finish(&octx->ocb,
2430 octx->tag, octx->taglen) != 0)
2435 /* If encrypting then just get the tag */
2436 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2438 /* Don't reuse the IV */
2444 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2446 EVP_AES_OCB_CTX *octx = c->cipher_data;
2447 CRYPTO_ocb128_cleanup(&octx->ocb);
2451 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2452 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2453 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2454 # endif /* OPENSSL_NO_OCB */