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
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39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
51 #include <openssl/opensslconf.h>
52 #ifndef OPENSSL_NO_AES
53 #include <openssl/crypto.h>
54 # include <openssl/evp.h>
55 # include <openssl/err.h>
58 # include <openssl/aes.h>
59 # include "evp_locl.h"
60 # include "modes_lcl.h"
61 # include <openssl/rand.h>
79 } ks; /* AES key schedule to use */
80 int key_set; /* Set if key initialised */
81 int iv_set; /* Set if an iv is set */
83 unsigned char *iv; /* Temporary IV store */
84 int ivlen; /* IV length */
86 int iv_gen; /* It is OK to generate IVs */
87 int tls_aad_len; /* TLS AAD length */
95 } ks1, ks2; /* AES key schedules to use */
97 void (*stream) (const unsigned char *in,
98 unsigned char *out, size_t length,
99 const AES_KEY *key1, const AES_KEY *key2,
100 const unsigned char iv[16]);
107 } ks; /* AES key schedule to use */
108 int key_set; /* Set if key initialised */
109 int iv_set; /* Set if an iv is set */
110 int tag_set; /* Set if tag is valid */
111 int len_set; /* Set if message length set */
112 int L, M; /* L and M parameters from RFC3610 */
117 # ifndef OPENSSL_NO_OCB
122 } ksenc; /* AES key schedule to use for encryption */
126 } ksdec; /* AES key schedule to use for decryption */
127 int key_set; /* Set if key initialised */
128 int iv_set; /* Set if an iv is set */
130 unsigned char *iv; /* Temporary IV store */
131 unsigned char tag[16];
132 unsigned char data_buf[16]; /* Store partial data blocks */
133 unsigned char aad_buf[16]; /* Store partial AAD blocks */
136 int ivlen; /* IV length */
141 # define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
144 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
146 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
149 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
151 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
154 void vpaes_cbc_encrypt(const unsigned char *in,
157 const AES_KEY *key, unsigned char *ivec, int enc);
160 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
161 size_t length, const AES_KEY *key,
162 unsigned char ivec[16], int enc);
163 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
164 size_t len, const AES_KEY *key,
165 const unsigned char ivec[16]);
166 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
167 size_t len, const AES_KEY *key1,
168 const AES_KEY *key2, const unsigned char iv[16]);
169 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
170 size_t len, const AES_KEY *key1,
171 const AES_KEY *key2, const unsigned char iv[16]);
174 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
175 size_t blocks, const AES_KEY *key,
176 const unsigned char ivec[AES_BLOCK_SIZE]);
179 void AES_xts_encrypt(const char *inp, char *out, size_t len,
180 const AES_KEY *key1, const AES_KEY *key2,
181 const unsigned char iv[16]);
182 void AES_xts_decrypt(const char *inp, char *out, size_t len,
183 const AES_KEY *key1, const AES_KEY *key2,
184 const unsigned char iv[16]);
187 # if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
188 # include "ppc_arch.h"
190 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
192 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
193 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
194 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
195 # define HWAES_encrypt aes_p8_encrypt
196 # define HWAES_decrypt aes_p8_decrypt
197 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
198 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
201 # if defined(AES_ASM) && !defined(I386_ONLY) && ( \
202 ((defined(__i386) || defined(__i386__) || \
203 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
204 defined(__x86_64) || defined(__x86_64__) || \
205 defined(_M_AMD64) || defined(_M_X64) || \
208 extern unsigned int OPENSSL_ia32cap_P[];
211 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
214 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
219 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
221 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
223 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
226 void aesni_encrypt(const unsigned char *in, unsigned char *out,
228 void aesni_decrypt(const unsigned char *in, unsigned char *out,
231 void aesni_ecb_encrypt(const unsigned char *in,
233 size_t length, const AES_KEY *key, int enc);
234 void aesni_cbc_encrypt(const unsigned char *in,
237 const AES_KEY *key, unsigned char *ivec, int enc);
239 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
242 const void *key, const unsigned char *ivec);
244 void aesni_xts_encrypt(const unsigned char *in,
247 const AES_KEY *key1, const AES_KEY *key2,
248 const unsigned char iv[16]);
250 void aesni_xts_decrypt(const unsigned char *in,
253 const AES_KEY *key1, const AES_KEY *key2,
254 const unsigned char iv[16]);
256 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
260 const unsigned char ivec[16],
261 unsigned char cmac[16]);
263 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
267 const unsigned char ivec[16],
268 unsigned char cmac[16]);
270 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
271 size_t aesni_gcm_encrypt(const unsigned char *in,
274 const void *key, unsigned char ivec[16], u64 *Xi);
275 # define AES_gcm_encrypt aesni_gcm_encrypt
276 size_t aesni_gcm_decrypt(const unsigned char *in,
279 const void *key, unsigned char ivec[16], u64 *Xi);
280 # define AES_gcm_decrypt aesni_gcm_decrypt
281 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
283 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
284 gctx->gcm.ghash==gcm_ghash_avx)
285 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
286 gctx->gcm.ghash==gcm_ghash_avx)
287 # undef AES_GCM_ASM2 /* minor size optimization */
290 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
291 const unsigned char *iv, int enc)
294 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
296 mode = ctx->cipher->flags & EVP_CIPH_MODE;
297 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
299 ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
300 dat->block = (block128_f) aesni_decrypt;
301 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
302 (cbc128_f) aesni_cbc_encrypt : NULL;
304 ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
305 dat->block = (block128_f) aesni_encrypt;
306 if (mode == EVP_CIPH_CBC_MODE)
307 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
308 else if (mode == EVP_CIPH_CTR_MODE)
309 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
311 dat->stream.cbc = NULL;
315 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
322 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
323 const unsigned char *in, size_t len)
325 aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
330 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
331 const unsigned char *in, size_t len)
333 size_t bl = ctx->cipher->block_size;
338 aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
343 # define aesni_ofb_cipher aes_ofb_cipher
344 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
345 const unsigned char *in, size_t len);
347 # define aesni_cfb_cipher aes_cfb_cipher
348 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
349 const unsigned char *in, size_t len);
351 # define aesni_cfb8_cipher aes_cfb8_cipher
352 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
353 const unsigned char *in, size_t len);
355 # define aesni_cfb1_cipher aes_cfb1_cipher
356 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
357 const unsigned char *in, size_t len);
359 # define aesni_ctr_cipher aes_ctr_cipher
360 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
361 const unsigned char *in, size_t len);
363 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
364 const unsigned char *iv, int enc)
366 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
370 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
371 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
372 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
374 * If we have an iv can set it directly, otherwise use saved IV.
376 if (iv == NULL && gctx->iv_set)
379 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
384 /* If key set use IV, otherwise copy */
386 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
388 memcpy(gctx->iv, iv, gctx->ivlen);
395 # define aesni_gcm_cipher aes_gcm_cipher
396 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
397 const unsigned char *in, size_t len);
399 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
400 const unsigned char *iv, int enc)
402 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
407 /* key_len is two AES keys */
409 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
410 xctx->xts.block1 = (block128_f) aesni_encrypt;
411 xctx->stream = aesni_xts_encrypt;
413 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
414 xctx->xts.block1 = (block128_f) aesni_decrypt;
415 xctx->stream = aesni_xts_decrypt;
418 aesni_set_encrypt_key(key + ctx->key_len / 2,
419 ctx->key_len * 4, &xctx->ks2.ks);
420 xctx->xts.block2 = (block128_f) aesni_encrypt;
422 xctx->xts.key1 = &xctx->ks1;
426 xctx->xts.key2 = &xctx->ks2;
427 memcpy(ctx->iv, iv, 16);
433 # define aesni_xts_cipher aes_xts_cipher
434 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
435 const unsigned char *in, size_t len);
437 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
438 const unsigned char *iv, int enc)
440 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
444 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
445 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
446 &cctx->ks, (block128_f) aesni_encrypt);
447 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
448 (ccm128_f) aesni_ccm64_decrypt_blocks;
452 memcpy(ctx->iv, iv, 15 - cctx->L);
458 # define aesni_ccm_cipher aes_ccm_cipher
459 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
460 const unsigned char *in, size_t len);
462 # ifndef OPENSSL_NO_OCB
463 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
464 const unsigned char *iv, int enc)
466 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
472 * We set both the encrypt and decrypt key here because decrypt
473 * needs both. We could possibly optimise to remove setting the
474 * decrypt for an encryption operation.
476 aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
477 aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
478 if (!CRYPTO_ocb128_init(&octx->ocb,
479 &octx->ksenc.ks, &octx->ksdec.ks,
480 (block128_f) aesni_encrypt,
481 (block128_f) aesni_decrypt))
487 * If we have an iv we can set it directly, otherwise use saved IV.
489 if (iv == NULL && octx->iv_set)
492 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
499 /* If key set use IV, otherwise copy */
501 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
503 memcpy(octx->iv, iv, octx->ivlen);
509 # define aesni_ocb_cipher aes_ocb_cipher
510 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
511 const unsigned char *in, size_t len);
512 # endif /* OPENSSL_NO_OCB */
514 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
515 static const EVP_CIPHER aesni_##keylen##_##mode = { \
516 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
517 flags|EVP_CIPH_##MODE##_MODE, \
519 aesni_##mode##_cipher, \
521 sizeof(EVP_AES_KEY), \
522 NULL,NULL,NULL,NULL }; \
523 static const EVP_CIPHER aes_##keylen##_##mode = { \
524 nid##_##keylen##_##nmode,blocksize, \
526 flags|EVP_CIPH_##MODE##_MODE, \
528 aes_##mode##_cipher, \
530 sizeof(EVP_AES_KEY), \
531 NULL,NULL,NULL,NULL }; \
532 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
533 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
535 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
536 static const EVP_CIPHER aesni_##keylen##_##mode = { \
537 nid##_##keylen##_##mode,blocksize, \
538 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
539 flags|EVP_CIPH_##MODE##_MODE, \
540 aesni_##mode##_init_key, \
541 aesni_##mode##_cipher, \
542 aes_##mode##_cleanup, \
543 sizeof(EVP_AES_##MODE##_CTX), \
544 NULL,NULL,aes_##mode##_ctrl,NULL }; \
545 static const EVP_CIPHER aes_##keylen##_##mode = { \
546 nid##_##keylen##_##mode,blocksize, \
547 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
548 flags|EVP_CIPH_##MODE##_MODE, \
549 aes_##mode##_init_key, \
550 aes_##mode##_cipher, \
551 aes_##mode##_cleanup, \
552 sizeof(EVP_AES_##MODE##_CTX), \
553 NULL,NULL,aes_##mode##_ctrl,NULL }; \
554 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
555 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
557 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
559 # include "sparc_arch.h"
561 extern unsigned int OPENSSL_sparcv9cap_P[];
563 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
565 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
566 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
567 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
569 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
572 * Key-length specific subroutines were chosen for following reason.
573 * Each SPARC T4 core can execute up to 8 threads which share core's
574 * resources. Loading as much key material to registers allows to
575 * minimize references to shared memory interface, as well as amount
576 * of instructions in inner loops [much needed on T4]. But then having
577 * non-key-length specific routines would require conditional branches
578 * either in inner loops or on subroutines' entries. Former is hardly
579 * acceptable, while latter means code size increase to size occupied
580 * by multiple key-length specfic subroutines, so why fight?
582 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
583 size_t len, const AES_KEY *key,
584 unsigned char *ivec);
585 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
586 size_t len, const AES_KEY *key,
587 unsigned char *ivec);
588 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
589 size_t len, const AES_KEY *key,
590 unsigned char *ivec);
591 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
592 size_t len, const AES_KEY *key,
593 unsigned char *ivec);
594 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
595 size_t len, const AES_KEY *key,
596 unsigned char *ivec);
597 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
598 size_t len, const AES_KEY *key,
599 unsigned char *ivec);
600 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
601 size_t blocks, const AES_KEY *key,
602 unsigned char *ivec);
603 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
604 size_t blocks, const AES_KEY *key,
605 unsigned char *ivec);
606 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
607 size_t blocks, const AES_KEY *key,
608 unsigned char *ivec);
609 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
610 size_t blocks, const AES_KEY *key1,
611 const AES_KEY *key2, const unsigned char *ivec);
612 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
613 size_t blocks, const AES_KEY *key1,
614 const AES_KEY *key2, const unsigned char *ivec);
615 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
616 size_t blocks, const AES_KEY *key1,
617 const AES_KEY *key2, const unsigned char *ivec);
618 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
619 size_t blocks, const AES_KEY *key1,
620 const AES_KEY *key2, const unsigned char *ivec);
622 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
623 const unsigned char *iv, int enc)
626 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
628 mode = ctx->cipher->flags & EVP_CIPH_MODE;
629 bits = ctx->key_len * 8;
630 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
633 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
634 dat->block = (block128_f) aes_t4_decrypt;
637 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
638 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
641 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
642 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
645 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
646 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
653 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
654 dat->block = (block128_f) aes_t4_encrypt;
657 if (mode == EVP_CIPH_CBC_MODE)
658 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
659 else if (mode == EVP_CIPH_CTR_MODE)
660 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
662 dat->stream.cbc = NULL;
665 if (mode == EVP_CIPH_CBC_MODE)
666 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
667 else if (mode == EVP_CIPH_CTR_MODE)
668 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
670 dat->stream.cbc = NULL;
673 if (mode == EVP_CIPH_CBC_MODE)
674 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
675 else if (mode == EVP_CIPH_CTR_MODE)
676 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
678 dat->stream.cbc = NULL;
686 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
693 # define aes_t4_cbc_cipher aes_cbc_cipher
694 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
695 const unsigned char *in, size_t len);
697 # define aes_t4_ecb_cipher aes_ecb_cipher
698 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
699 const unsigned char *in, size_t len);
701 # define aes_t4_ofb_cipher aes_ofb_cipher
702 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
703 const unsigned char *in, size_t len);
705 # define aes_t4_cfb_cipher aes_cfb_cipher
706 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
707 const unsigned char *in, size_t len);
709 # define aes_t4_cfb8_cipher aes_cfb8_cipher
710 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
711 const unsigned char *in, size_t len);
713 # define aes_t4_cfb1_cipher aes_cfb1_cipher
714 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
715 const unsigned char *in, size_t len);
717 # define aes_t4_ctr_cipher aes_ctr_cipher
718 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
719 const unsigned char *in, size_t len);
721 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
722 const unsigned char *iv, int enc)
724 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
728 int bits = ctx->key_len * 8;
729 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
730 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
731 (block128_f) aes_t4_encrypt);
734 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
737 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
740 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
746 * If we have an iv can set it directly, otherwise use saved IV.
748 if (iv == NULL && gctx->iv_set)
751 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
756 /* If key set use IV, otherwise copy */
758 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
760 memcpy(gctx->iv, iv, gctx->ivlen);
767 # define aes_t4_gcm_cipher aes_gcm_cipher
768 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
769 const unsigned char *in, size_t len);
771 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
772 const unsigned char *iv, int enc)
774 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
779 int bits = ctx->key_len * 4;
781 /* key_len is two AES keys */
783 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
784 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
787 xctx->stream = aes128_t4_xts_encrypt;
790 xctx->stream = aes256_t4_xts_encrypt;
796 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
797 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
800 xctx->stream = aes128_t4_xts_decrypt;
803 xctx->stream = aes256_t4_xts_decrypt;
810 aes_t4_set_encrypt_key(key + ctx->key_len / 2,
811 ctx->key_len * 4, &xctx->ks2.ks);
812 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
814 xctx->xts.key1 = &xctx->ks1;
818 xctx->xts.key2 = &xctx->ks2;
819 memcpy(ctx->iv, iv, 16);
825 # define aes_t4_xts_cipher aes_xts_cipher
826 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
827 const unsigned char *in, size_t len);
829 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
830 const unsigned char *iv, int enc)
832 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
836 int bits = ctx->key_len * 8;
837 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
838 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
839 &cctx->ks, (block128_f) aes_t4_encrypt);
844 memcpy(ctx->iv, iv, 15 - cctx->L);
850 # define aes_t4_ccm_cipher aes_ccm_cipher
851 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
852 const unsigned char *in, size_t len);
854 # ifndef OPENSSL_NO_OCB
855 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
856 const unsigned char *iv, int enc)
858 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
864 * We set both the encrypt and decrypt key here because decrypt
865 * needs both. We could possibly optimise to remove setting the
866 * decrypt for an encryption operation.
868 aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
869 aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
870 if (!CRYPTO_ocb128_init(&octx->ocb,
871 &octx->ksenc.ks, &octx->ksdec.ks,
872 (block128_f) aes_t4_encrypt,
873 (block128_f) aes_t4_decrypt))
879 * If we have an iv we can set it directly, otherwise use saved IV.
881 if (iv == NULL && octx->iv_set)
884 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
891 /* If key set use IV, otherwise copy */
893 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
895 memcpy(octx->iv, iv, octx->ivlen);
901 # define aes_t4_ocb_cipher aes_ocb_cipher
902 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
903 const unsigned char *in, size_t len);
904 # endif /* OPENSSL_NO_OCB */
906 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
907 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
908 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
909 flags|EVP_CIPH_##MODE##_MODE, \
911 aes_t4_##mode##_cipher, \
913 sizeof(EVP_AES_KEY), \
914 NULL,NULL,NULL,NULL }; \
915 static const EVP_CIPHER aes_##keylen##_##mode = { \
916 nid##_##keylen##_##nmode,blocksize, \
918 flags|EVP_CIPH_##MODE##_MODE, \
920 aes_##mode##_cipher, \
922 sizeof(EVP_AES_KEY), \
923 NULL,NULL,NULL,NULL }; \
924 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
925 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
927 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
928 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
929 nid##_##keylen##_##mode,blocksize, \
930 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
931 flags|EVP_CIPH_##MODE##_MODE, \
932 aes_t4_##mode##_init_key, \
933 aes_t4_##mode##_cipher, \
934 aes_##mode##_cleanup, \
935 sizeof(EVP_AES_##MODE##_CTX), \
936 NULL,NULL,aes_##mode##_ctrl,NULL }; \
937 static const EVP_CIPHER aes_##keylen##_##mode = { \
938 nid##_##keylen##_##mode,blocksize, \
939 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
940 flags|EVP_CIPH_##MODE##_MODE, \
941 aes_##mode##_init_key, \
942 aes_##mode##_cipher, \
943 aes_##mode##_cleanup, \
944 sizeof(EVP_AES_##MODE##_CTX), \
945 NULL,NULL,aes_##mode##_ctrl,NULL }; \
946 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
947 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
951 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
952 static const EVP_CIPHER aes_##keylen##_##mode = { \
953 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
954 flags|EVP_CIPH_##MODE##_MODE, \
956 aes_##mode##_cipher, \
958 sizeof(EVP_AES_KEY), \
959 NULL,NULL,NULL,NULL }; \
960 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
961 { return &aes_##keylen##_##mode; }
963 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
964 static const EVP_CIPHER aes_##keylen##_##mode = { \
965 nid##_##keylen##_##mode,blocksize, \
966 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
967 flags|EVP_CIPH_##MODE##_MODE, \
968 aes_##mode##_init_key, \
969 aes_##mode##_cipher, \
970 aes_##mode##_cleanup, \
971 sizeof(EVP_AES_##MODE##_CTX), \
972 NULL,NULL,aes_##mode##_ctrl,NULL }; \
973 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
974 { return &aes_##keylen##_##mode; }
978 # if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
979 # include "arm_arch.h"
980 # if __ARM_MAX_ARCH__>=7
981 # if defined(BSAES_ASM)
982 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
984 # if defined(VPAES_ASM)
985 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
987 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
988 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
989 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
990 # define HWAES_encrypt aes_v8_encrypt
991 # define HWAES_decrypt aes_v8_decrypt
992 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
993 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
997 # if defined(HWAES_CAPABLE)
998 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1000 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1002 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1003 const AES_KEY *key);
1004 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1005 const AES_KEY *key);
1006 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1007 size_t length, const AES_KEY *key,
1008 unsigned char *ivec, const int enc);
1009 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1010 size_t len, const AES_KEY *key,
1011 const unsigned char ivec[16]);
1014 # define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1015 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1016 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1017 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1018 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1019 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1020 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1021 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1023 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1024 const unsigned char *iv, int enc)
1027 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1029 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1030 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1032 # ifdef HWAES_CAPABLE
1033 if (HWAES_CAPABLE) {
1034 ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1035 dat->block = (block128_f) HWAES_decrypt;
1036 dat->stream.cbc = NULL;
1037 # ifdef HWAES_cbc_encrypt
1038 if (mode == EVP_CIPH_CBC_MODE)
1039 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1043 # ifdef BSAES_CAPABLE
1044 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1045 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1046 dat->block = (block128_f) AES_decrypt;
1047 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1050 # ifdef VPAES_CAPABLE
1051 if (VPAES_CAPABLE) {
1052 ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1053 dat->block = (block128_f) vpaes_decrypt;
1054 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1055 (cbc128_f) vpaes_cbc_encrypt : NULL;
1059 ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1060 dat->block = (block128_f) AES_decrypt;
1061 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1062 (cbc128_f) AES_cbc_encrypt : NULL;
1064 # ifdef HWAES_CAPABLE
1065 if (HWAES_CAPABLE) {
1066 ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1067 dat->block = (block128_f) HWAES_encrypt;
1068 dat->stream.cbc = NULL;
1069 # ifdef HWAES_cbc_encrypt
1070 if (mode == EVP_CIPH_CBC_MODE)
1071 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1074 # ifdef HWAES_ctr32_encrypt_blocks
1075 if (mode == EVP_CIPH_CTR_MODE)
1076 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1079 (void)0; /* terminate potentially open 'else' */
1082 # ifdef BSAES_CAPABLE
1083 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1084 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1085 dat->block = (block128_f) AES_encrypt;
1086 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1089 # ifdef VPAES_CAPABLE
1090 if (VPAES_CAPABLE) {
1091 ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1092 dat->block = (block128_f) vpaes_encrypt;
1093 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1094 (cbc128_f) vpaes_cbc_encrypt : NULL;
1098 ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
1099 dat->block = (block128_f) AES_encrypt;
1100 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1101 (cbc128_f) AES_cbc_encrypt : NULL;
1103 if (mode == EVP_CIPH_CTR_MODE)
1104 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1109 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1116 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1117 const unsigned char *in, size_t len)
1119 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1121 if (dat->stream.cbc)
1122 (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
1123 else if (ctx->encrypt)
1124 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1126 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
1131 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1132 const unsigned char *in, size_t len)
1134 size_t bl = ctx->cipher->block_size;
1136 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1141 for (i = 0, len -= bl; i <= len; i += bl)
1142 (*dat->block) (in + i, out + i, &dat->ks);
1147 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1148 const unsigned char *in, size_t len)
1150 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1152 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1153 ctx->iv, &ctx->num, dat->block);
1157 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1158 const unsigned char *in, size_t len)
1160 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1162 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1163 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1167 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1168 const unsigned char *in, size_t len)
1170 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1172 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1173 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1177 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1178 const unsigned char *in, size_t len)
1180 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1182 if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
1183 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1184 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1188 while (len >= MAXBITCHUNK) {
1189 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1190 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1194 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1195 ctx->iv, &ctx->num, ctx->encrypt, dat->block);
1200 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1201 const unsigned char *in, size_t len)
1203 unsigned int num = ctx->num;
1204 EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
1206 if (dat->stream.ctr)
1207 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1208 ctx->iv, ctx->buf, &num, dat->stream.ctr);
1210 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1211 ctx->iv, ctx->buf, &num, dat->block);
1212 ctx->num = (size_t)num;
1216 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1217 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1218 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1220 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1222 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1223 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1224 if (gctx->iv != c->iv)
1225 OPENSSL_free(gctx->iv);
1229 /* increment counter (64-bit int) by 1 */
1230 static void ctr64_inc(unsigned char *counter)
1245 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1247 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1252 gctx->ivlen = c->cipher->iv_len;
1256 gctx->tls_aad_len = -1;
1259 case EVP_CTRL_AEAD_SET_IVLEN:
1262 /* Allocate memory for IV if needed */
1263 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1264 if (gctx->iv != c->iv)
1265 OPENSSL_free(gctx->iv);
1266 gctx->iv = OPENSSL_malloc(arg);
1273 case EVP_CTRL_AEAD_SET_TAG:
1274 if (arg <= 0 || arg > 16 || c->encrypt)
1276 memcpy(c->buf, ptr, arg);
1280 case EVP_CTRL_AEAD_GET_TAG:
1281 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1283 memcpy(ptr, c->buf, arg);
1286 case EVP_CTRL_GCM_SET_IV_FIXED:
1287 /* Special case: -1 length restores whole IV */
1289 memcpy(gctx->iv, ptr, gctx->ivlen);
1294 * Fixed field must be at least 4 bytes and invocation field at least
1297 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1300 memcpy(gctx->iv, ptr, arg);
1301 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1306 case EVP_CTRL_GCM_IV_GEN:
1307 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1309 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1310 if (arg <= 0 || arg > gctx->ivlen)
1312 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1314 * Invocation field will be at least 8 bytes in size and so no need
1315 * to check wrap around or increment more than last 8 bytes.
1317 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1321 case EVP_CTRL_GCM_SET_IV_INV:
1322 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1324 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1325 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1329 case EVP_CTRL_AEAD_TLS1_AAD:
1330 /* Save the AAD for later use */
1331 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1333 memcpy(c->buf, ptr, arg);
1334 gctx->tls_aad_len = arg;
1336 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
1337 /* Correct length for explicit IV */
1338 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1339 /* If decrypting correct for tag too */
1341 len -= EVP_GCM_TLS_TAG_LEN;
1342 c->buf[arg - 2] = len >> 8;
1343 c->buf[arg - 1] = len & 0xff;
1345 /* Extra padding: tag appended to record */
1346 return EVP_GCM_TLS_TAG_LEN;
1350 EVP_CIPHER_CTX *out = ptr;
1351 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1352 if (gctx->gcm.key) {
1353 if (gctx->gcm.key != &gctx->ks)
1355 gctx_out->gcm.key = &gctx_out->ks;
1357 if (gctx->iv == c->iv)
1358 gctx_out->iv = out->iv;
1360 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1363 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1374 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1375 const unsigned char *iv, int enc)
1377 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1382 # ifdef HWAES_CAPABLE
1383 if (HWAES_CAPABLE) {
1384 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1385 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1386 (block128_f) HWAES_encrypt);
1387 # ifdef HWAES_ctr32_encrypt_blocks
1388 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1395 # ifdef BSAES_CAPABLE
1396 if (BSAES_CAPABLE) {
1397 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1398 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1399 (block128_f) AES_encrypt);
1400 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1404 # ifdef VPAES_CAPABLE
1405 if (VPAES_CAPABLE) {
1406 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1407 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1408 (block128_f) vpaes_encrypt);
1413 (void)0; /* terminate potentially open 'else' */
1415 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1416 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1417 (block128_f) AES_encrypt);
1419 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1426 * If we have an iv can set it directly, otherwise use saved IV.
1428 if (iv == NULL && gctx->iv_set)
1431 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1436 /* If key set use IV, otherwise copy */
1438 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1440 memcpy(gctx->iv, iv, gctx->ivlen);
1448 * Handle TLS GCM packet format. This consists of the last portion of the IV
1449 * followed by the payload and finally the tag. On encrypt generate IV,
1450 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1454 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1455 const unsigned char *in, size_t len)
1457 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1459 /* Encrypt/decrypt must be performed in place */
1461 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1464 * Set IV from start of buffer or generate IV and write to start of
1467 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1468 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1469 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1472 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1474 /* Fix buffer and length to point to payload */
1475 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1476 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1477 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1479 /* Encrypt payload */
1482 # if defined(AES_GCM_ASM)
1483 if (len >= 32 && AES_GCM_ASM(gctx)) {
1484 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1487 bulk = AES_gcm_encrypt(in, out, len,
1489 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1490 gctx->gcm.len.u[1] += bulk;
1493 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1496 len - bulk, gctx->ctr))
1500 # if defined(AES_GCM_ASM2)
1501 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1502 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1505 bulk = AES_gcm_encrypt(in, out, len,
1507 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1508 gctx->gcm.len.u[1] += bulk;
1511 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1512 in + bulk, out + bulk, len - bulk))
1516 /* Finally write tag */
1517 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1518 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1523 # if defined(AES_GCM_ASM)
1524 if (len >= 16 && AES_GCM_ASM(gctx)) {
1525 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1528 bulk = AES_gcm_decrypt(in, out, len,
1530 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1531 gctx->gcm.len.u[1] += bulk;
1534 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1537 len - bulk, gctx->ctr))
1541 # if defined(AES_GCM_ASM2)
1542 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1543 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1546 bulk = AES_gcm_decrypt(in, out, len,
1548 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1549 gctx->gcm.len.u[1] += bulk;
1552 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1553 in + bulk, out + bulk, len - bulk))
1557 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
1558 /* If tag mismatch wipe buffer */
1559 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
1560 OPENSSL_cleanse(out, len);
1568 gctx->tls_aad_len = -1;
1572 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1573 const unsigned char *in, size_t len)
1575 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1576 /* If not set up, return error */
1580 if (gctx->tls_aad_len >= 0)
1581 return aes_gcm_tls_cipher(ctx, out, in, len);
1587 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1589 } else if (ctx->encrypt) {
1592 # if defined(AES_GCM_ASM)
1593 if (len >= 32 && AES_GCM_ASM(gctx)) {
1594 size_t res = (16 - gctx->gcm.mres) % 16;
1596 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1599 bulk = AES_gcm_encrypt(in + res,
1600 out + res, len - res,
1601 gctx->gcm.key, gctx->gcm.Yi.c,
1603 gctx->gcm.len.u[1] += bulk;
1607 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1610 len - bulk, gctx->ctr))
1614 # if defined(AES_GCM_ASM2)
1615 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1616 size_t res = (16 - gctx->gcm.mres) % 16;
1618 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1621 bulk = AES_gcm_encrypt(in + res,
1622 out + res, len - res,
1623 gctx->gcm.key, gctx->gcm.Yi.c,
1625 gctx->gcm.len.u[1] += bulk;
1629 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1630 in + bulk, out + bulk, len - bulk))
1636 # if defined(AES_GCM_ASM)
1637 if (len >= 16 && AES_GCM_ASM(gctx)) {
1638 size_t res = (16 - gctx->gcm.mres) % 16;
1640 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1643 bulk = AES_gcm_decrypt(in + res,
1644 out + res, len - res,
1646 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1647 gctx->gcm.len.u[1] += bulk;
1651 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1654 len - bulk, gctx->ctr))
1658 # if defined(AES_GCM_ASM2)
1659 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1660 size_t res = (16 - gctx->gcm.mres) % 16;
1662 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1665 bulk = AES_gcm_decrypt(in + res,
1666 out + res, len - res,
1668 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1669 gctx->gcm.len.u[1] += bulk;
1673 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1674 in + bulk, out + bulk, len - bulk))
1680 if (!ctx->encrypt) {
1681 if (gctx->taglen < 0)
1683 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
1688 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1690 /* Don't reuse the IV */
1697 # define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1698 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1699 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1700 | EVP_CIPH_CUSTOM_COPY)
1702 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1703 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1704 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1705 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1706 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1707 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1709 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1711 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1712 if (type == EVP_CTRL_COPY) {
1713 EVP_CIPHER_CTX *out = ptr;
1714 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1715 if (xctx->xts.key1) {
1716 if (xctx->xts.key1 != &xctx->ks1)
1718 xctx_out->xts.key1 = &xctx_out->ks1;
1720 if (xctx->xts.key2) {
1721 if (xctx->xts.key2 != &xctx->ks2)
1723 xctx_out->xts.key2 = &xctx_out->ks2;
1726 } else if (type != EVP_CTRL_INIT)
1728 /* key1 and key2 are used as an indicator both key and IV are set */
1729 xctx->xts.key1 = NULL;
1730 xctx->xts.key2 = NULL;
1734 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1735 const unsigned char *iv, int enc)
1737 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1744 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1746 xctx->stream = NULL;
1748 /* key_len is two AES keys */
1749 # ifdef HWAES_CAPABLE
1750 if (HWAES_CAPABLE) {
1752 HWAES_set_encrypt_key(key, ctx->key_len * 4,
1754 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1756 HWAES_set_decrypt_key(key, ctx->key_len * 4,
1758 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1761 HWAES_set_encrypt_key(key + ctx->key_len / 2,
1762 ctx->key_len * 4, &xctx->ks2.ks);
1763 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1765 xctx->xts.key1 = &xctx->ks1;
1769 # ifdef BSAES_CAPABLE
1771 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1774 # ifdef VPAES_CAPABLE
1775 if (VPAES_CAPABLE) {
1777 vpaes_set_encrypt_key(key, ctx->key_len * 4,
1779 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1781 vpaes_set_decrypt_key(key, ctx->key_len * 4,
1783 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1786 vpaes_set_encrypt_key(key + ctx->key_len / 2,
1787 ctx->key_len * 4, &xctx->ks2.ks);
1788 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1790 xctx->xts.key1 = &xctx->ks1;
1794 (void)0; /* terminate potentially open 'else' */
1797 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1798 xctx->xts.block1 = (block128_f) AES_encrypt;
1800 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1801 xctx->xts.block1 = (block128_f) AES_decrypt;
1804 AES_set_encrypt_key(key + ctx->key_len / 2,
1805 ctx->key_len * 4, &xctx->ks2.ks);
1806 xctx->xts.block2 = (block128_f) AES_encrypt;
1808 xctx->xts.key1 = &xctx->ks1;
1812 xctx->xts.key2 = &xctx->ks2;
1813 memcpy(ctx->iv, iv, 16);
1819 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1820 const unsigned char *in, size_t len)
1822 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1823 if (!xctx->xts.key1 || !xctx->xts.key2)
1825 if (!out || !in || len < AES_BLOCK_SIZE)
1828 (*xctx->stream) (in, out, len,
1829 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1830 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1836 # define aes_xts_cleanup NULL
1838 # define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1839 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1840 | EVP_CIPH_CUSTOM_COPY)
1842 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1843 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1845 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1847 EVP_AES_CCM_CTX *cctx = c->cipher_data;
1858 case EVP_CTRL_AEAD_SET_IVLEN:
1860 case EVP_CTRL_CCM_SET_L:
1861 if (arg < 2 || arg > 8)
1866 case EVP_CTRL_AEAD_SET_TAG:
1867 if ((arg & 1) || arg < 4 || arg > 16)
1869 if (c->encrypt && ptr)
1873 memcpy(c->buf, ptr, arg);
1878 case EVP_CTRL_AEAD_GET_TAG:
1879 if (!c->encrypt || !cctx->tag_set)
1881 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1890 EVP_CIPHER_CTX *out = ptr;
1891 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
1892 if (cctx->ccm.key) {
1893 if (cctx->ccm.key != &cctx->ks)
1895 cctx_out->ccm.key = &cctx_out->ks;
1906 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1907 const unsigned char *iv, int enc)
1909 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1914 # ifdef HWAES_CAPABLE
1915 if (HWAES_CAPABLE) {
1916 HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1918 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1919 &cctx->ks, (block128_f) HWAES_encrypt);
1925 # ifdef VPAES_CAPABLE
1926 if (VPAES_CAPABLE) {
1927 vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1928 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1929 &cctx->ks, (block128_f) vpaes_encrypt);
1935 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1936 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1937 &cctx->ks, (block128_f) AES_encrypt);
1942 memcpy(ctx->iv, iv, 15 - cctx->L);
1948 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1949 const unsigned char *in, size_t len)
1951 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1952 CCM128_CONTEXT *ccm = &cctx->ccm;
1953 /* If not set up, return error */
1954 if (!cctx->iv_set && !cctx->key_set)
1956 if (!ctx->encrypt && !cctx->tag_set)
1960 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1965 /* If have AAD need message length */
1966 if (!cctx->len_set && len)
1968 CRYPTO_ccm128_aad(ccm, in, len);
1971 /* EVP_*Final() doesn't return any data */
1974 /* If not set length yet do it */
1975 if (!cctx->len_set) {
1976 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1981 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1983 CRYPTO_ccm128_encrypt(ccm, in, out, len))
1989 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
1991 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
1992 unsigned char tag[16];
1993 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
1994 if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
1999 OPENSSL_cleanse(out, len);
2008 # define aes_ccm_cleanup NULL
2010 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2011 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2012 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM, CUSTOM_FLAGS)
2019 /* Indicates if IV has been set */
2023 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2024 const unsigned char *iv, int enc)
2026 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2031 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2033 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2038 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2044 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2045 const unsigned char *in, size_t inlen)
2047 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2049 /* AES wrap with padding has IV length of 4, without padding 8 */
2050 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2051 /* No final operation so always return zero length */
2054 /* Input length must always be non-zero */
2057 /* If decrypting need at least 16 bytes and multiple of 8 */
2058 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2060 /* If not padding input must be multiple of 8 */
2061 if (!pad && inlen & 0x7)
2065 /* If padding round up to multiple of 8 */
2067 inlen = (inlen + 7) / 8 * 8;
2072 * If not padding output will be exactly 8 bytes smaller than
2073 * input. If padding it will be at least 8 bytes smaller but we
2074 * don't know how much.
2081 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2083 (block128_f) AES_encrypt);
2085 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2087 (block128_f) AES_decrypt);
2090 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2091 out, in, inlen, (block128_f) AES_encrypt);
2093 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2094 out, in, inlen, (block128_f) AES_decrypt);
2096 return rv ? (int)rv : -1;
2099 # define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2100 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2101 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2103 static const EVP_CIPHER aes_128_wrap = {
2105 8, 16, 8, WRAP_FLAGS,
2106 aes_wrap_init_key, aes_wrap_cipher,
2108 sizeof(EVP_AES_WRAP_CTX),
2109 NULL, NULL, NULL, NULL
2112 const EVP_CIPHER *EVP_aes_128_wrap(void)
2114 return &aes_128_wrap;
2117 static const EVP_CIPHER aes_192_wrap = {
2119 8, 24, 8, WRAP_FLAGS,
2120 aes_wrap_init_key, aes_wrap_cipher,
2122 sizeof(EVP_AES_WRAP_CTX),
2123 NULL, NULL, NULL, NULL
2126 const EVP_CIPHER *EVP_aes_192_wrap(void)
2128 return &aes_192_wrap;
2131 static const EVP_CIPHER aes_256_wrap = {
2133 8, 32, 8, WRAP_FLAGS,
2134 aes_wrap_init_key, aes_wrap_cipher,
2136 sizeof(EVP_AES_WRAP_CTX),
2137 NULL, NULL, NULL, NULL
2140 const EVP_CIPHER *EVP_aes_256_wrap(void)
2142 return &aes_256_wrap;
2145 static const EVP_CIPHER aes_128_wrap_pad = {
2146 NID_id_aes128_wrap_pad,
2147 8, 16, 4, WRAP_FLAGS,
2148 aes_wrap_init_key, aes_wrap_cipher,
2150 sizeof(EVP_AES_WRAP_CTX),
2151 NULL, NULL, NULL, NULL
2154 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2156 return &aes_128_wrap_pad;
2159 static const EVP_CIPHER aes_192_wrap_pad = {
2160 NID_id_aes192_wrap_pad,
2161 8, 24, 4, WRAP_FLAGS,
2162 aes_wrap_init_key, aes_wrap_cipher,
2164 sizeof(EVP_AES_WRAP_CTX),
2165 NULL, NULL, NULL, NULL
2168 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2170 return &aes_192_wrap_pad;
2173 static const EVP_CIPHER aes_256_wrap_pad = {
2174 NID_id_aes256_wrap_pad,
2175 8, 32, 4, WRAP_FLAGS,
2176 aes_wrap_init_key, aes_wrap_cipher,
2178 sizeof(EVP_AES_WRAP_CTX),
2179 NULL, NULL, NULL, NULL
2182 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2184 return &aes_256_wrap_pad;
2187 # ifndef OPENSSL_NO_OCB
2188 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2190 EVP_AES_OCB_CTX *octx = c->cipher_data;
2191 EVP_CIPHER_CTX *newc;
2192 EVP_AES_OCB_CTX *new_octx;
2198 octx->ivlen = c->cipher->iv_len;
2201 octx->data_buf_len = 0;
2202 octx->aad_buf_len = 0;
2205 case EVP_CTRL_AEAD_SET_IVLEN:
2206 /* IV len must be 1 to 15 */
2207 if (arg <= 0 || arg > 15)
2213 case EVP_CTRL_AEAD_SET_TAG:
2215 /* Tag len must be 0 to 16 */
2216 if (arg < 0 || arg > 16)
2222 if (arg != octx->taglen || c->encrypt)
2224 memcpy(octx->tag, ptr, arg);
2227 case EVP_CTRL_AEAD_GET_TAG:
2228 if (arg != octx->taglen || !c->encrypt)
2231 memcpy(ptr, octx->tag, arg);
2235 newc = (EVP_CIPHER_CTX *)ptr;
2236 new_octx = newc->cipher_data;
2237 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2238 &new_octx->ksenc.ks,
2239 &new_octx->ksdec.ks);
2247 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2248 const unsigned char *iv, int enc)
2250 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2256 * We set both the encrypt and decrypt key here because decrypt
2257 * needs both. We could possibly optimise to remove setting the
2258 * decrypt for an encryption operation.
2260 # ifdef VPAES_CAPABLE
2261 if (VPAES_CAPABLE) {
2262 vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2263 vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2264 if (!CRYPTO_ocb128_init(&octx->ocb,
2265 &octx->ksenc.ks, &octx->ksdec.ks,
2266 (block128_f) vpaes_encrypt,
2267 (block128_f) vpaes_decrypt))
2272 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
2273 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
2274 if (!CRYPTO_ocb128_init(&octx->ocb,
2275 &octx->ksenc.ks, &octx->ksdec.ks,
2276 (block128_f) AES_encrypt,
2277 (block128_f) AES_decrypt))
2283 * If we have an iv we can set it directly, otherwise use saved IV.
2285 if (iv == NULL && octx->iv_set)
2288 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2295 /* If key set use IV, otherwise copy */
2297 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2299 memcpy(octx->iv, iv, octx->ivlen);
2305 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2306 const unsigned char *in, size_t len)
2310 int written_len = 0;
2311 size_t trailing_len;
2312 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2314 /* If IV or Key not set then return error */
2323 * Need to ensure we are only passing full blocks to low level OCB
2324 * routines. We do it here rather than in EVP_EncryptUpdate/
2325 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2326 * and those routines don't support that
2329 /* Are we dealing with AAD or normal data here? */
2331 buf = octx->aad_buf;
2332 buf_len = &(octx->aad_buf_len);
2334 buf = octx->data_buf;
2335 buf_len = &(octx->data_buf_len);
2339 * If we've got a partially filled buffer from a previous call then
2340 * use that data first
2343 unsigned int remaining;
2345 remaining = 16 - (*buf_len);
2346 if (remaining > len) {
2347 memcpy(buf + (*buf_len), in, len);
2351 memcpy(buf + (*buf_len), in, remaining);
2354 * If we get here we've filled the buffer, so process it
2359 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2361 } else if (ctx->encrypt) {
2362 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2365 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2372 /* Do we have a partial block to handle at the end? */
2373 trailing_len = len % 16;
2376 * If we've got some full blocks to handle, then process these first
2378 if (len != trailing_len) {
2380 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2382 } else if (ctx->encrypt) {
2383 if (!CRYPTO_ocb128_encrypt
2384 (&octx->ocb, in, out, len - trailing_len))
2387 if (!CRYPTO_ocb128_decrypt
2388 (&octx->ocb, in, out, len - trailing_len))
2391 written_len += len - trailing_len;
2392 in += len - trailing_len;
2395 /* Handle any trailing partial block */
2397 memcpy(buf, in, trailing_len);
2398 *buf_len = trailing_len;
2404 * First of all empty the buffer of any partial block that we might
2405 * have been provided - both for data and AAD
2407 if (octx->data_buf_len) {
2409 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2410 octx->data_buf_len))
2413 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2414 octx->data_buf_len))
2417 written_len = octx->data_buf_len;
2418 octx->data_buf_len = 0;
2420 if (octx->aad_buf_len) {
2421 if (!CRYPTO_ocb128_aad
2422 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2424 octx->aad_buf_len = 0;
2426 /* If decrypting then verify */
2427 if (!ctx->encrypt) {
2428 if (octx->taglen < 0)
2430 if (CRYPTO_ocb128_finish(&octx->ocb,
2431 octx->tag, octx->taglen) != 0)
2436 /* If encrypting then just get the tag */
2437 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2439 /* Don't reuse the IV */
2445 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2447 EVP_AES_OCB_CTX *octx = c->cipher_data;
2448 CRYPTO_ocb128_cleanup(&octx->ocb);
2452 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2453 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2454 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
2455 # endif /* OPENSSL_NO_OCB */