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 * ====================================================================
53 #include <openssl/opensslconf.h>
54 #ifndef OPENSSL_NO_AES
55 #include <openssl/evp.h>
56 #include <openssl/err.h>
59 #include <openssl/aes.h>
61 #include "modes_lcl.h"
62 #include <openssl/rand.h>
66 union { double align; AES_KEY ks; } ks;
76 union { double align; AES_KEY ks; } ks; /* AES key schedule to use */
77 int key_set; /* Set if key initialised */
78 int iv_set; /* Set if an iv is set */
80 unsigned char *iv; /* Temporary IV store */
81 int ivlen; /* IV length */
83 int iv_gen; /* It is OK to generate IVs */
84 int tls_aad_len; /* TLS AAD length */
90 union { double align; AES_KEY ks; } ks1, ks2; /* AES key schedules to use */
92 void (*stream)(const unsigned char *in,
93 unsigned char *out, size_t length,
94 const AES_KEY *key1, const AES_KEY *key2,
95 const unsigned char iv[16]);
100 union { double align; AES_KEY ks; } ks; /* AES key schedule to use */
101 int key_set; /* Set if key initialised */
102 int iv_set; /* Set if an iv is set */
103 int tag_set; /* Set if tag is valid */
104 int len_set; /* Set if message length set */
105 int L, M; /* L and M parameters from RFC3610 */
110 #ifndef OPENSSL_NO_OCB
113 AES_KEY ksenc; /* AES key schedule to use for encryption */
114 AES_KEY ksdec; /* AES key schedule to use for decryption */
115 int key_set; /* Set if key initialised */
116 int iv_set; /* Set if an iv is set */
118 unsigned char *iv; /* Temporary IV store */
119 unsigned char tag[16];
120 unsigned char data_buf[16]; /* Store partial data blocks */
121 unsigned char aad_buf[16]; /* Store partial AAD blocks */
124 int ivlen; /* IV length */
129 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
132 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
134 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
137 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
139 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
142 void vpaes_cbc_encrypt(const unsigned char *in,
146 unsigned char *ivec, int enc);
149 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
150 size_t length, const AES_KEY *key,
151 unsigned char ivec[16], int enc);
152 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
153 size_t len, const AES_KEY *key,
154 const unsigned char ivec[16]);
155 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
156 size_t len, const AES_KEY *key1,
157 const AES_KEY *key2, const unsigned char iv[16]);
158 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
159 size_t len, const AES_KEY *key1,
160 const AES_KEY *key2, const unsigned char iv[16]);
163 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
164 size_t blocks, const AES_KEY *key,
165 const unsigned char ivec[AES_BLOCK_SIZE]);
168 void AES_xts_encrypt(const char *inp,char *out,size_t len,
169 const AES_KEY *key1, const AES_KEY *key2,
170 const unsigned char iv[16]);
171 void AES_xts_decrypt(const char *inp,char *out,size_t len,
172 const AES_KEY *key1, const AES_KEY *key2,
173 const unsigned char iv[16]);
176 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
177 # include "ppc_arch.h"
179 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
181 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
182 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
183 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
184 # define HWAES_encrypt aes_p8_encrypt
185 # define HWAES_decrypt aes_p8_decrypt
186 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
187 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
190 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
191 ((defined(__i386) || defined(__i386__) || \
192 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
193 defined(__x86_64) || defined(__x86_64__) || \
194 defined(_M_AMD64) || defined(_M_X64) || \
197 extern unsigned int OPENSSL_ia32cap_P[];
200 #define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
203 #define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
208 #define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
210 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
212 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
215 void aesni_encrypt(const unsigned char *in, unsigned char *out,
217 void aesni_decrypt(const unsigned char *in, unsigned char *out,
220 void aesni_ecb_encrypt(const unsigned char *in,
225 void aesni_cbc_encrypt(const unsigned char *in,
229 unsigned char *ivec, int enc);
231 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
235 const unsigned char *ivec);
237 void aesni_xts_encrypt(const unsigned char *in,
240 const AES_KEY *key1, const AES_KEY *key2,
241 const unsigned char iv[16]);
243 void aesni_xts_decrypt(const unsigned char *in,
246 const AES_KEY *key1, const AES_KEY *key2,
247 const unsigned char iv[16]);
249 void aesni_ccm64_encrypt_blocks (const unsigned char *in,
253 const unsigned char ivec[16],
254 unsigned char cmac[16]);
256 void aesni_ccm64_decrypt_blocks (const unsigned char *in,
260 const unsigned char ivec[16],
261 unsigned char cmac[16]);
263 #if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
264 size_t aesni_gcm_encrypt(const unsigned char *in,
268 unsigned char ivec[16],
270 #define AES_gcm_encrypt aesni_gcm_encrypt
271 size_t aesni_gcm_decrypt(const unsigned char *in,
275 unsigned char ivec[16],
277 #define AES_gcm_decrypt aesni_gcm_decrypt
278 void gcm_ghash_avx(u64 Xi[2],const u128 Htable[16],const u8 *in,size_t len);
279 #define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
280 gctx->gcm.ghash==gcm_ghash_avx)
281 #define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
282 gctx->gcm.ghash==gcm_ghash_avx)
283 #undef AES_GCM_ASM2 /* minor size optimization */
286 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
287 const unsigned char *iv, int enc)
290 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
292 mode = ctx->cipher->flags & EVP_CIPH_MODE;
293 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
296 ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data);
297 dat->block = (block128_f)aesni_decrypt;
298 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
299 (cbc128_f)aesni_cbc_encrypt :
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;
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;
335 if (len<bl) return 1;
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;
370 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
371 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
372 (block128_f)aesni_encrypt);
373 gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
374 /* If we have an iv can set it directly, otherwise use
377 if (iv == NULL && gctx->iv_set)
381 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
388 /* If key set use IV, otherwise copy */
390 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
392 memcpy(gctx->iv, iv, gctx->ivlen);
399 #define aesni_gcm_cipher aes_gcm_cipher
400 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
401 const unsigned char *in, size_t len);
403 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
404 const unsigned char *iv, int enc)
406 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
412 /* key_len is two AES keys */
415 aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
416 xctx->xts.block1 = (block128_f)aesni_encrypt;
417 xctx->stream = aesni_xts_encrypt;
421 aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
422 xctx->xts.block1 = (block128_f)aesni_decrypt;
423 xctx->stream = aesni_xts_decrypt;
426 aesni_set_encrypt_key(key + ctx->key_len/2,
427 ctx->key_len * 4, &xctx->ks2.ks);
428 xctx->xts.block2 = (block128_f)aesni_encrypt;
430 xctx->xts.key1 = &xctx->ks1;
435 xctx->xts.key2 = &xctx->ks2;
436 memcpy(ctx->iv, iv, 16);
442 #define aesni_xts_cipher aes_xts_cipher
443 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
444 const unsigned char *in, size_t len);
446 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
447 const unsigned char *iv, int enc)
449 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
454 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
455 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
456 &cctx->ks, (block128_f)aesni_encrypt);
457 cctx->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks :
458 (ccm128_f)aesni_ccm64_decrypt_blocks;
463 memcpy(ctx->iv, iv, 15 - cctx->L);
469 #define aesni_ccm_cipher aes_ccm_cipher
470 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
471 const unsigned char *in, size_t len);
473 #ifndef OPENSSL_NO_OCB
474 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
475 const unsigned char *iv, int enc)
477 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
484 /* We set both the encrypt and decrypt key here because decrypt
485 * needs both. We could possibly optimise to remove setting the
486 * decrypt for an encryption operation.
488 aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
489 aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
490 if(!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
491 (block128_f)aesni_encrypt, (block128_f)aesni_decrypt))
496 /* If we have an iv we can set it directly, otherwise use
499 if (iv == NULL && octx->iv_set)
503 if(CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen) != 1)
511 /* If key set use IV, otherwise copy */
513 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
515 memcpy(octx->iv, iv, octx->ivlen);
521 #define aesni_ocb_cipher aes_ocb_cipher
522 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
523 const unsigned char *in, size_t len);
524 #endif /* OPENSSL_NO_OCB */
526 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
527 static const EVP_CIPHER aesni_##keylen##_##mode = { \
528 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
529 flags|EVP_CIPH_##MODE##_MODE, \
531 aesni_##mode##_cipher, \
533 sizeof(EVP_AES_KEY), \
534 NULL,NULL,NULL,NULL }; \
535 static const EVP_CIPHER aes_##keylen##_##mode = { \
536 nid##_##keylen##_##nmode,blocksize, \
538 flags|EVP_CIPH_##MODE##_MODE, \
540 aes_##mode##_cipher, \
542 sizeof(EVP_AES_KEY), \
543 NULL,NULL,NULL,NULL }; \
544 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
545 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
547 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
548 static const EVP_CIPHER aesni_##keylen##_##mode = { \
549 nid##_##keylen##_##mode,blocksize, \
550 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
551 flags|EVP_CIPH_##MODE##_MODE, \
552 aesni_##mode##_init_key, \
553 aesni_##mode##_cipher, \
554 aes_##mode##_cleanup, \
555 sizeof(EVP_AES_##MODE##_CTX), \
556 NULL,NULL,aes_##mode##_ctrl,NULL }; \
557 static const EVP_CIPHER aes_##keylen##_##mode = { \
558 nid##_##keylen##_##mode,blocksize, \
559 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
560 flags|EVP_CIPH_##MODE##_MODE, \
561 aes_##mode##_init_key, \
562 aes_##mode##_cipher, \
563 aes_##mode##_cleanup, \
564 sizeof(EVP_AES_##MODE##_CTX), \
565 NULL,NULL,aes_##mode##_ctrl,NULL }; \
566 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
567 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
569 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
571 #include "sparc_arch.h"
573 extern unsigned int OPENSSL_sparcv9cap_P[];
575 #define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
577 void aes_t4_set_encrypt_key (const unsigned char *key, int bits,
579 void aes_t4_set_decrypt_key (const unsigned char *key, int bits,
581 void aes_t4_encrypt (const unsigned char *in, unsigned char *out,
583 void aes_t4_decrypt (const unsigned char *in, unsigned char *out,
586 * Key-length specific subroutines were chosen for following reason.
587 * Each SPARC T4 core can execute up to 8 threads which share core's
588 * resources. Loading as much key material to registers allows to
589 * minimize references to shared memory interface, as well as amount
590 * of instructions in inner loops [much needed on T4]. But then having
591 * non-key-length specific routines would require conditional branches
592 * either in inner loops or on subroutines' entries. Former is hardly
593 * acceptable, while latter means code size increase to size occupied
594 * by multiple key-length specfic subroutines, so why fight?
596 void aes128_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
597 size_t len, const AES_KEY *key,
598 unsigned char *ivec);
599 void aes128_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
600 size_t len, const AES_KEY *key,
601 unsigned char *ivec);
602 void aes192_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
603 size_t len, const AES_KEY *key,
604 unsigned char *ivec);
605 void aes192_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
606 size_t len, const AES_KEY *key,
607 unsigned char *ivec);
608 void aes256_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
609 size_t len, const AES_KEY *key,
610 unsigned char *ivec);
611 void aes256_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
612 size_t len, const AES_KEY *key,
613 unsigned char *ivec);
614 void aes128_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
615 size_t blocks, const AES_KEY *key,
616 unsigned char *ivec);
617 void aes192_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
618 size_t blocks, const AES_KEY *key,
619 unsigned char *ivec);
620 void aes256_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
621 size_t blocks, const AES_KEY *key,
622 unsigned char *ivec);
623 void aes128_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
624 size_t blocks, const AES_KEY *key1,
625 const AES_KEY *key2, const unsigned char *ivec);
626 void aes128_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
627 size_t blocks, const AES_KEY *key1,
628 const AES_KEY *key2, const unsigned char *ivec);
629 void aes256_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
630 size_t blocks, const AES_KEY *key1,
631 const AES_KEY *key2, const unsigned char *ivec);
632 void aes256_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
633 size_t blocks, const AES_KEY *key1,
634 const AES_KEY *key2, const unsigned char *ivec);
636 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
637 const unsigned char *iv, int enc)
640 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
642 mode = ctx->cipher->flags & EVP_CIPH_MODE;
643 bits = ctx->key_len*8;
644 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
648 aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
649 dat->block = (block128_f)aes_t4_decrypt;
652 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
653 (cbc128_f)aes128_t4_cbc_decrypt :
657 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
658 (cbc128_f)aes192_t4_cbc_decrypt :
662 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
663 (cbc128_f)aes256_t4_cbc_decrypt :
672 aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
673 dat->block = (block128_f)aes_t4_encrypt;
676 if (mode==EVP_CIPH_CBC_MODE)
677 dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt;
678 else if (mode==EVP_CIPH_CTR_MODE)
679 dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
681 dat->stream.cbc = NULL;
684 if (mode==EVP_CIPH_CBC_MODE)
685 dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt;
686 else if (mode==EVP_CIPH_CTR_MODE)
687 dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
689 dat->stream.cbc = NULL;
692 if (mode==EVP_CIPH_CBC_MODE)
693 dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt;
694 else if (mode==EVP_CIPH_CTR_MODE)
695 dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
697 dat->stream.cbc = NULL;
706 EVPerr(EVP_F_AES_T4_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
713 #define aes_t4_cbc_cipher aes_cbc_cipher
714 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
715 const unsigned char *in, size_t len);
717 #define aes_t4_ecb_cipher aes_ecb_cipher
718 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
719 const unsigned char *in, size_t len);
721 #define aes_t4_ofb_cipher aes_ofb_cipher
722 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
723 const unsigned char *in,size_t len);
725 #define aes_t4_cfb_cipher aes_cfb_cipher
726 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
727 const unsigned char *in,size_t len);
729 #define aes_t4_cfb8_cipher aes_cfb8_cipher
730 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
731 const unsigned char *in,size_t len);
733 #define aes_t4_cfb1_cipher aes_cfb1_cipher
734 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
735 const unsigned char *in,size_t len);
737 #define aes_t4_ctr_cipher aes_ctr_cipher
738 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
739 const unsigned char *in, size_t len);
741 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
742 const unsigned char *iv, int enc)
744 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
749 int bits = ctx->key_len * 8;
750 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
751 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
752 (block128_f)aes_t4_encrypt);
755 gctx->ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
758 gctx->ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
761 gctx->ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
766 /* If we have an iv can set it directly, otherwise use
769 if (iv == NULL && gctx->iv_set)
773 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
780 /* If key set use IV, otherwise copy */
782 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
784 memcpy(gctx->iv, iv, gctx->ivlen);
791 #define aes_t4_gcm_cipher aes_gcm_cipher
792 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
793 const unsigned char *in, size_t len);
795 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
796 const unsigned char *iv, int enc)
798 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
804 int bits = ctx->key_len * 4;
806 /* key_len is two AES keys */
809 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
810 xctx->xts.block1 = (block128_f)aes_t4_encrypt;
813 xctx->stream = aes128_t4_xts_encrypt;
817 xctx->stream = aes192_t4_xts_encrypt;
821 xctx->stream = aes256_t4_xts_encrypt;
829 aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
830 xctx->xts.block1 = (block128_f)aes_t4_decrypt;
833 xctx->stream = aes128_t4_xts_decrypt;
837 xctx->stream = aes192_t4_xts_decrypt;
841 xctx->stream = aes256_t4_xts_decrypt;
848 aes_t4_set_encrypt_key(key + ctx->key_len/2,
849 ctx->key_len * 4, &xctx->ks2.ks);
850 xctx->xts.block2 = (block128_f)aes_t4_encrypt;
852 xctx->xts.key1 = &xctx->ks1;
857 xctx->xts.key2 = &xctx->ks2;
858 memcpy(ctx->iv, iv, 16);
864 #define aes_t4_xts_cipher aes_xts_cipher
865 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
866 const unsigned char *in, size_t len);
868 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
869 const unsigned char *iv, int enc)
871 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
876 int bits = ctx->key_len * 8;
877 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
878 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
879 &cctx->ks, (block128_f)aes_t4_encrypt);
883 cctx->str = enc?(ccm128_f)aes128_t4_ccm64_encrypt :
884 (ccm128_f)ae128_t4_ccm64_decrypt;
887 cctx->str = enc?(ccm128_f)aes192_t4_ccm64_encrypt :
888 (ccm128_f)ae192_t4_ccm64_decrypt;
891 cctx->str = enc?(ccm128_f)aes256_t4_ccm64_encrypt :
892 (ccm128_f)ae256_t4_ccm64_decrypt;
902 memcpy(ctx->iv, iv, 15 - cctx->L);
908 #define aes_t4_ccm_cipher aes_ccm_cipher
909 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
910 const unsigned char *in, size_t len);
912 #ifndef OPENSSL_NO_OCB
913 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
914 const unsigned char *iv, int enc)
916 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
923 /* We set both the encrypt and decrypt key here because decrypt
924 * needs both. We could possibly optimise to remove setting the
925 * decrypt for an encryption operation.
927 aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
928 aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
929 if(!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
930 (block128_f)aes_t4_encrypt, (block128_f)aes_t4_decrypt))
935 /* If we have an iv we can set it directly, otherwise use
938 if (iv == NULL && octx->iv_set)
942 if(CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen) != 1)
950 /* If key set use IV, otherwise copy */
952 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
954 memcpy(octx->iv, iv, octx->ivlen);
960 #define aes_t4_ocb_cipher aes_ocb_cipher
961 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
962 const unsigned char *in, size_t len);
963 #endif /* OPENSSL_NO_OCB */
965 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
966 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
967 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
968 flags|EVP_CIPH_##MODE##_MODE, \
970 aes_t4_##mode##_cipher, \
972 sizeof(EVP_AES_KEY), \
973 NULL,NULL,NULL,NULL }; \
974 static const EVP_CIPHER aes_##keylen##_##mode = { \
975 nid##_##keylen##_##nmode,blocksize, \
977 flags|EVP_CIPH_##MODE##_MODE, \
979 aes_##mode##_cipher, \
981 sizeof(EVP_AES_KEY), \
982 NULL,NULL,NULL,NULL }; \
983 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
984 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
986 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
987 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
988 nid##_##keylen##_##mode,blocksize, \
989 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
990 flags|EVP_CIPH_##MODE##_MODE, \
991 aes_t4_##mode##_init_key, \
992 aes_t4_##mode##_cipher, \
993 aes_##mode##_cleanup, \
994 sizeof(EVP_AES_##MODE##_CTX), \
995 NULL,NULL,aes_##mode##_ctrl,NULL }; \
996 static const EVP_CIPHER aes_##keylen##_##mode = { \
997 nid##_##keylen##_##mode,blocksize, \
998 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
999 flags|EVP_CIPH_##MODE##_MODE, \
1000 aes_##mode##_init_key, \
1001 aes_##mode##_cipher, \
1002 aes_##mode##_cleanup, \
1003 sizeof(EVP_AES_##MODE##_CTX), \
1004 NULL,NULL,aes_##mode##_ctrl,NULL }; \
1005 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1006 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
1010 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
1011 static const EVP_CIPHER aes_##keylen##_##mode = { \
1012 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
1013 flags|EVP_CIPH_##MODE##_MODE, \
1015 aes_##mode##_cipher, \
1017 sizeof(EVP_AES_KEY), \
1018 NULL,NULL,NULL,NULL }; \
1019 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1020 { return &aes_##keylen##_##mode; }
1022 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
1023 static const EVP_CIPHER aes_##keylen##_##mode = { \
1024 nid##_##keylen##_##mode,blocksize, \
1025 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
1026 flags|EVP_CIPH_##MODE##_MODE, \
1027 aes_##mode##_init_key, \
1028 aes_##mode##_cipher, \
1029 aes_##mode##_cleanup, \
1030 sizeof(EVP_AES_##MODE##_CTX), \
1031 NULL,NULL,aes_##mode##_ctrl,NULL }; \
1032 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1033 { return &aes_##keylen##_##mode; }
1037 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
1038 #include "arm_arch.h"
1040 # if defined(BSAES_ASM)
1041 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1043 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
1044 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
1045 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
1046 # define HWAES_encrypt aes_v8_encrypt
1047 # define HWAES_decrypt aes_v8_decrypt
1048 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
1049 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1053 #if defined(HWAES_CAPABLE)
1054 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1056 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1058 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1059 const AES_KEY *key);
1060 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1061 const AES_KEY *key);
1062 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1063 size_t length, const AES_KEY *key,
1064 unsigned char *ivec, const int enc);
1065 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1066 size_t len, const AES_KEY *key, const unsigned char ivec[16]);
1069 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1070 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1071 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1072 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1073 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1074 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1075 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1076 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1078 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1079 const unsigned char *iv, int enc)
1082 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1084 mode = ctx->cipher->flags & EVP_CIPH_MODE;
1085 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1087 #ifdef HWAES_CAPABLE
1090 ret = HWAES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1091 dat->block = (block128_f)HWAES_decrypt;
1092 dat->stream.cbc = NULL;
1093 #ifdef HWAES_cbc_encrypt
1094 if (mode==EVP_CIPH_CBC_MODE)
1095 dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
1100 #ifdef BSAES_CAPABLE
1101 if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE)
1103 ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1104 dat->block = (block128_f)AES_decrypt;
1105 dat->stream.cbc = (cbc128_f)bsaes_cbc_encrypt;
1109 #ifdef VPAES_CAPABLE
1112 ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1113 dat->block = (block128_f)vpaes_decrypt;
1114 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
1115 (cbc128_f)vpaes_cbc_encrypt :
1121 ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1122 dat->block = (block128_f)AES_decrypt;
1123 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
1124 (cbc128_f)AES_cbc_encrypt :
1128 #ifdef HWAES_CAPABLE
1131 ret = HWAES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1132 dat->block = (block128_f)HWAES_encrypt;
1133 dat->stream.cbc = NULL;
1134 #ifdef HWAES_cbc_encrypt
1135 if (mode==EVP_CIPH_CBC_MODE)
1136 dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
1139 #ifdef HWAES_ctr32_encrypt_blocks
1140 if (mode==EVP_CIPH_CTR_MODE)
1141 dat->stream.ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
1144 (void)0; /* terminate potentially open 'else' */
1148 #ifdef BSAES_CAPABLE
1149 if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE)
1151 ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1152 dat->block = (block128_f)AES_encrypt;
1153 dat->stream.ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
1157 #ifdef VPAES_CAPABLE
1160 ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1161 dat->block = (block128_f)vpaes_encrypt;
1162 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
1163 (cbc128_f)vpaes_cbc_encrypt :
1169 ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1170 dat->block = (block128_f)AES_encrypt;
1171 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
1172 (cbc128_f)AES_cbc_encrypt :
1175 if (mode==EVP_CIPH_CTR_MODE)
1176 dat->stream.ctr = (ctr128_f)AES_ctr32_encrypt;
1182 EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
1189 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1190 const unsigned char *in, size_t len)
1192 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1194 if (dat->stream.cbc)
1195 (*dat->stream.cbc)(in,out,len,&dat->ks,ctx->iv,ctx->encrypt);
1196 else if (ctx->encrypt)
1197 CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
1199 CRYPTO_cbc128_decrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
1204 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1205 const unsigned char *in, size_t len)
1207 size_t bl = ctx->cipher->block_size;
1209 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1211 if (len<bl) return 1;
1213 for (i=0,len-=bl;i<=len;i+=bl)
1214 (*dat->block)(in+i,out+i,&dat->ks);
1219 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1220 const unsigned char *in,size_t len)
1222 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1224 CRYPTO_ofb128_encrypt(in,out,len,&dat->ks,
1225 ctx->iv,&ctx->num,dat->block);
1229 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1230 const unsigned char *in,size_t len)
1232 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1234 CRYPTO_cfb128_encrypt(in,out,len,&dat->ks,
1235 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1239 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1240 const unsigned char *in,size_t len)
1242 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1244 CRYPTO_cfb128_8_encrypt(in,out,len,&dat->ks,
1245 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1249 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1250 const unsigned char *in,size_t len)
1252 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1254 if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
1255 CRYPTO_cfb128_1_encrypt(in,out,len,&dat->ks,
1256 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1260 while (len>=MAXBITCHUNK) {
1261 CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,&dat->ks,
1262 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1266 CRYPTO_cfb128_1_encrypt(in,out,len*8,&dat->ks,
1267 ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1272 static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out,
1273 const unsigned char *in, size_t len)
1275 unsigned int num = ctx->num;
1276 EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1278 if (dat->stream.ctr)
1279 CRYPTO_ctr128_encrypt_ctr32(in,out,len,&dat->ks,
1280 ctx->iv,ctx->buf,&num,dat->stream.ctr);
1282 CRYPTO_ctr128_encrypt(in,out,len,&dat->ks,
1283 ctx->iv,ctx->buf,&num,dat->block);
1284 ctx->num = (size_t)num;
1288 BLOCK_CIPHER_generic_pack(NID_aes,128,0)
1289 BLOCK_CIPHER_generic_pack(NID_aes,192,0)
1290 BLOCK_CIPHER_generic_pack(NID_aes,256,0)
1292 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1294 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1295 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1296 if (gctx->iv != c->iv)
1297 OPENSSL_free(gctx->iv);
1301 /* increment counter (64-bit int) by 1 */
1302 static void ctr64_inc(unsigned char *counter) {
1315 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1317 EVP_AES_GCM_CTX *gctx = c->cipher_data;
1323 gctx->ivlen = c->cipher->iv_len;
1327 gctx->tls_aad_len = -1;
1330 case EVP_CTRL_GCM_SET_IVLEN:
1333 /* Allocate memory for IV if needed */
1334 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen))
1336 if (gctx->iv != c->iv)
1337 OPENSSL_free(gctx->iv);
1338 gctx->iv = OPENSSL_malloc(arg);
1345 case EVP_CTRL_GCM_SET_TAG:
1346 if (arg <= 0 || arg > 16 || c->encrypt)
1348 memcpy(c->buf, ptr, arg);
1352 case EVP_CTRL_GCM_GET_TAG:
1353 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1355 memcpy(ptr, c->buf, arg);
1358 case EVP_CTRL_GCM_SET_IV_FIXED:
1359 /* Special case: -1 length restores whole IV */
1362 memcpy(gctx->iv, ptr, gctx->ivlen);
1366 /* Fixed field must be at least 4 bytes and invocation field
1369 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1372 memcpy(gctx->iv, ptr, arg);
1374 RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1379 case EVP_CTRL_GCM_IV_GEN:
1380 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1382 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1383 if (arg <= 0 || arg > gctx->ivlen)
1385 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1386 /* Invocation field will be at least 8 bytes in size and
1387 * so no need to check wrap around or increment more than
1390 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1394 case EVP_CTRL_GCM_SET_IV_INV:
1395 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1397 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1398 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1402 case EVP_CTRL_AEAD_TLS1_AAD:
1403 /* Save the AAD for later use */
1406 memcpy(c->buf, ptr, arg);
1407 gctx->tls_aad_len = arg;
1409 unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1];
1410 /* Correct length for explicit IV */
1411 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1412 /* If decrypting correct for tag too */
1414 len -= EVP_GCM_TLS_TAG_LEN;
1415 c->buf[arg-2] = len>>8;
1416 c->buf[arg-1] = len & 0xff;
1418 /* Extra padding: tag appended to record */
1419 return EVP_GCM_TLS_TAG_LEN;
1423 EVP_CIPHER_CTX *out = ptr;
1424 EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
1427 if (gctx->gcm.key != &gctx->ks)
1429 gctx_out->gcm.key = &gctx_out->ks;
1431 if (gctx->iv == c->iv)
1432 gctx_out->iv = out->iv;
1435 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1438 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1449 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1450 const unsigned char *iv, int enc)
1452 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1457 #ifdef HWAES_CAPABLE
1460 HWAES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1461 CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1462 (block128_f)HWAES_encrypt);
1463 #ifdef HWAES_ctr32_encrypt_blocks
1464 gctx->ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
1472 #ifdef BSAES_CAPABLE
1475 AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1476 CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1477 (block128_f)AES_encrypt);
1478 gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
1483 #ifdef VPAES_CAPABLE
1486 vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1487 CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1488 (block128_f)vpaes_encrypt);
1494 (void)0; /* terminate potentially open 'else' */
1496 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1497 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
1499 gctx->ctr = (ctr128_f)AES_ctr32_encrypt;
1505 /* If we have an iv can set it directly, otherwise use
1508 if (iv == NULL && gctx->iv_set)
1512 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1519 /* If key set use IV, otherwise copy */
1521 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1523 memcpy(gctx->iv, iv, gctx->ivlen);
1530 /* Handle TLS GCM packet format. This consists of the last portion of the IV
1531 * followed by the payload and finally the tag. On encrypt generate IV,
1532 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1536 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1537 const unsigned char *in, size_t len)
1539 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1541 /* Encrypt/decrypt must be performed in place */
1542 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN+EVP_GCM_TLS_TAG_LEN))
1544 /* Set IV from start of buffer or generate IV and write to start
1547 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1548 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1549 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1552 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1554 /* Fix buffer and length to point to payload */
1555 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1556 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1557 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1560 /* Encrypt payload */
1564 #if defined(AES_GCM_ASM)
1565 if (len>=32 && AES_GCM_ASM(gctx))
1567 if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
1570 bulk = AES_gcm_encrypt(in,out,len,
1574 gctx->gcm.len.u[1] += bulk;
1577 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1586 #if defined(AES_GCM_ASM2)
1587 if (len>=32 && AES_GCM_ASM2(gctx))
1589 if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
1592 bulk = AES_gcm_encrypt(in,out,len,
1596 gctx->gcm.len.u[1] += bulk;
1599 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1606 /* Finally write tag */
1607 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1608 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1616 #if defined(AES_GCM_ASM)
1617 if (len>=16 && AES_GCM_ASM(gctx))
1619 if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
1622 bulk = AES_gcm_decrypt(in,out,len,
1626 gctx->gcm.len.u[1] += bulk;
1629 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1638 #if defined(AES_GCM_ASM2)
1639 if (len>=16 && AES_GCM_ASM2(gctx))
1641 if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
1644 bulk = AES_gcm_decrypt(in,out,len,
1648 gctx->gcm.len.u[1] += bulk;
1651 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1658 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf,
1659 EVP_GCM_TLS_TAG_LEN);
1660 /* If tag mismatch wipe buffer */
1661 if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN))
1663 OPENSSL_cleanse(out, len);
1671 gctx->tls_aad_len = -1;
1675 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1676 const unsigned char *in, size_t len)
1678 EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1679 /* If not set up, return error */
1683 if (gctx->tls_aad_len >= 0)
1684 return aes_gcm_tls_cipher(ctx, out, in, len);
1692 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1695 else if (ctx->encrypt)
1700 #if defined(AES_GCM_ASM)
1701 if (len>=32 && AES_GCM_ASM(gctx))
1703 size_t res = (16-gctx->gcm.mres)%16;
1705 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1709 bulk = AES_gcm_encrypt(in+res,
1710 out+res,len-res, gctx->gcm.key,
1713 gctx->gcm.len.u[1] += bulk;
1717 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1726 #if defined(AES_GCM_ASM2)
1727 if (len>=32 && AES_GCM_ASM2(gctx))
1729 size_t res = (16-gctx->gcm.mres)%16;
1731 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1735 bulk = AES_gcm_encrypt(in+res,
1736 out+res,len-res, gctx->gcm.key,
1739 gctx->gcm.len.u[1] += bulk;
1743 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1755 #if defined(AES_GCM_ASM)
1756 if (len>=16 && AES_GCM_ASM(gctx))
1758 size_t res = (16-gctx->gcm.mres)%16;
1760 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1764 bulk = AES_gcm_decrypt(in+res,
1769 gctx->gcm.len.u[1] += bulk;
1773 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1782 #if defined(AES_GCM_ASM2)
1783 if (len>=16 && AES_GCM_ASM2(gctx))
1785 size_t res = (16-gctx->gcm.mres)%16;
1787 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1791 bulk = AES_gcm_decrypt(in+res,
1796 gctx->gcm.len.u[1] += bulk;
1800 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1813 if (gctx->taglen < 0)
1815 if (CRYPTO_gcm128_finish(&gctx->gcm,
1816 ctx->buf, gctx->taglen) != 0)
1821 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1823 /* Don't reuse the IV */
1830 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1831 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1832 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1833 | EVP_CIPH_CUSTOM_COPY)
1835 BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
1836 EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1837 BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,
1838 EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1839 BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
1840 EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1842 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1844 EVP_AES_XTS_CTX *xctx = c->cipher_data;
1845 if (type == EVP_CTRL_COPY)
1847 EVP_CIPHER_CTX *out = ptr;
1848 EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
1851 if (xctx->xts.key1 != &xctx->ks1)
1853 xctx_out->xts.key1 = &xctx_out->ks1;
1857 if (xctx->xts.key2 != &xctx->ks2)
1859 xctx_out->xts.key2 = &xctx_out->ks2;
1863 else if (type != EVP_CTRL_INIT)
1865 /* key1 and key2 are used as an indicator both key and IV are set */
1866 xctx->xts.key1 = NULL;
1867 xctx->xts.key2 = NULL;
1871 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1872 const unsigned char *iv, int enc)
1874 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1881 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1883 xctx->stream = NULL;
1885 /* key_len is two AES keys */
1886 #ifdef HWAES_CAPABLE
1891 HWAES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1892 xctx->xts.block1 = (block128_f)HWAES_encrypt;
1896 HWAES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1897 xctx->xts.block1 = (block128_f)HWAES_decrypt;
1900 HWAES_set_encrypt_key(key + ctx->key_len/2,
1901 ctx->key_len * 4, &xctx->ks2.ks);
1902 xctx->xts.block2 = (block128_f)HWAES_encrypt;
1904 xctx->xts.key1 = &xctx->ks1;
1909 #ifdef BSAES_CAPABLE
1911 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1914 #ifdef VPAES_CAPABLE
1919 vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1920 xctx->xts.block1 = (block128_f)vpaes_encrypt;
1924 vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1925 xctx->xts.block1 = (block128_f)vpaes_decrypt;
1928 vpaes_set_encrypt_key(key + ctx->key_len/2,
1929 ctx->key_len * 4, &xctx->ks2.ks);
1930 xctx->xts.block2 = (block128_f)vpaes_encrypt;
1932 xctx->xts.key1 = &xctx->ks1;
1937 (void)0; /* terminate potentially open 'else' */
1941 AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1942 xctx->xts.block1 = (block128_f)AES_encrypt;
1946 AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1947 xctx->xts.block1 = (block128_f)AES_decrypt;
1950 AES_set_encrypt_key(key + ctx->key_len/2,
1951 ctx->key_len * 4, &xctx->ks2.ks);
1952 xctx->xts.block2 = (block128_f)AES_encrypt;
1954 xctx->xts.key1 = &xctx->ks1;
1959 xctx->xts.key2 = &xctx->ks2;
1960 memcpy(ctx->iv, iv, 16);
1966 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1967 const unsigned char *in, size_t len)
1969 EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1970 if (!xctx->xts.key1 || !xctx->xts.key2)
1972 if (!out || !in || len<AES_BLOCK_SIZE)
1975 (*xctx->stream)(in, out, len,
1976 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1977 else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1983 #define aes_xts_cleanup NULL
1985 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1986 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1987 | EVP_CIPH_CUSTOM_COPY)
1989 BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,XTS_FLAGS)
1990 BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,XTS_FLAGS)
1992 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1994 EVP_AES_CCM_CTX *cctx = c->cipher_data;
2006 case EVP_CTRL_CCM_SET_IVLEN:
2008 case EVP_CTRL_CCM_SET_L:
2009 if (arg < 2 || arg > 8)
2014 case EVP_CTRL_CCM_SET_TAG:
2015 if ((arg & 1) || arg < 4 || arg > 16)
2017 if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
2022 memcpy(c->buf, ptr, arg);
2027 case EVP_CTRL_CCM_GET_TAG:
2028 if (!c->encrypt || !cctx->tag_set)
2030 if(!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
2039 EVP_CIPHER_CTX *out = ptr;
2040 EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
2043 if (cctx->ccm.key != &cctx->ks)
2045 cctx_out->ccm.key = &cctx_out->ks;
2056 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2057 const unsigned char *iv, int enc)
2059 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
2064 #ifdef HWAES_CAPABLE
2067 HWAES_set_encrypt_key(key,ctx->key_len*8,&cctx->ks.ks);
2069 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2070 &cctx->ks, (block128_f)HWAES_encrypt);
2077 #ifdef VPAES_CAPABLE
2080 vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks.ks);
2081 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2082 &cctx->ks, (block128_f)vpaes_encrypt);
2088 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
2089 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2090 &cctx->ks, (block128_f)AES_encrypt);
2096 memcpy(ctx->iv, iv, 15 - cctx->L);
2102 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2103 const unsigned char *in, size_t len)
2105 EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
2106 CCM128_CONTEXT *ccm = &cctx->ccm;
2107 /* If not set up, return error */
2108 if (!cctx->iv_set && !cctx->key_set)
2110 if (!ctx->encrypt && !cctx->tag_set)
2116 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len))
2121 /* If have AAD need message length */
2122 if (!cctx->len_set && len)
2124 CRYPTO_ccm128_aad(ccm, in, len);
2127 /* EVP_*Final() doesn't return any data */
2130 /* If not set length yet do it */
2133 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
2139 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2141 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2149 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2151 !CRYPTO_ccm128_decrypt(ccm, in, out, len))
2153 unsigned char tag[16];
2154 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M))
2156 if (!memcmp(tag, ctx->buf, cctx->M))
2161 OPENSSL_cleanse(out, len);
2170 #define aes_ccm_cleanup NULL
2172 BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,CUSTOM_FLAGS)
2173 BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,CUSTOM_FLAGS)
2174 BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,CUSTOM_FLAGS)
2178 union { double align; AES_KEY ks; } ks;
2179 /* Indicates if IV has been set */
2183 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2184 const unsigned char *iv, int enc)
2186 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2192 AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2194 AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2200 memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
2206 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2207 const unsigned char *in, size_t inlen)
2209 EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2211 /* AES wrap with padding has IV length of 4, without padding 8 */
2212 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2213 /* No final operation so always return zero length */
2216 /* Input length must always be non-zero */
2219 /* If decrypting need at least 16 bytes and multiple of 8 */
2220 if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
2222 /* If not padding input must be multiple of 8 */
2223 if (!pad && inlen & 0x7)
2229 /* If padding round up to multiple of 8 */
2231 inlen = (inlen + 7)/8 * 8;
2237 /* If not padding output will be exactly 8 bytes
2238 * smaller than input. If padding it will be at
2239 * least 8 bytes smaller but we don't know how
2248 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2250 (block128_f)AES_encrypt);
2252 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2254 (block128_f)AES_decrypt);
2259 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2261 (block128_f)AES_encrypt);
2263 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2265 (block128_f)AES_decrypt);
2267 return rv ? (int)rv : -1;
2270 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2271 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2272 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2274 static const EVP_CIPHER aes_128_wrap = {
2276 8, 16, 8, WRAP_FLAGS,
2277 aes_wrap_init_key, aes_wrap_cipher,
2279 sizeof(EVP_AES_WRAP_CTX),
2280 NULL,NULL,NULL,NULL };
2282 const EVP_CIPHER *EVP_aes_128_wrap(void)
2284 return &aes_128_wrap;
2287 static const EVP_CIPHER aes_192_wrap = {
2289 8, 24, 8, WRAP_FLAGS,
2290 aes_wrap_init_key, aes_wrap_cipher,
2292 sizeof(EVP_AES_WRAP_CTX),
2293 NULL,NULL,NULL,NULL };
2295 const EVP_CIPHER *EVP_aes_192_wrap(void)
2297 return &aes_192_wrap;
2300 static const EVP_CIPHER aes_256_wrap = {
2302 8, 32, 8, WRAP_FLAGS,
2303 aes_wrap_init_key, aes_wrap_cipher,
2305 sizeof(EVP_AES_WRAP_CTX),
2306 NULL,NULL,NULL,NULL };
2308 const EVP_CIPHER *EVP_aes_256_wrap(void)
2310 return &aes_256_wrap;
2313 static const EVP_CIPHER aes_128_wrap_pad = {
2314 NID_id_aes128_wrap_pad,
2315 8, 16, 4, WRAP_FLAGS,
2316 aes_wrap_init_key, aes_wrap_cipher,
2318 sizeof(EVP_AES_WRAP_CTX),
2319 NULL,NULL,NULL,NULL };
2321 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2323 return &aes_128_wrap_pad;
2326 static const EVP_CIPHER aes_192_wrap_pad = {
2327 NID_id_aes192_wrap_pad,
2328 8, 24, 4, WRAP_FLAGS,
2329 aes_wrap_init_key, aes_wrap_cipher,
2331 sizeof(EVP_AES_WRAP_CTX),
2332 NULL,NULL,NULL,NULL };
2334 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2336 return &aes_192_wrap_pad;
2339 static const EVP_CIPHER aes_256_wrap_pad = {
2340 NID_id_aes256_wrap_pad,
2341 8, 32, 4, WRAP_FLAGS,
2342 aes_wrap_init_key, aes_wrap_cipher,
2344 sizeof(EVP_AES_WRAP_CTX),
2345 NULL,NULL,NULL,NULL };
2347 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2349 return &aes_256_wrap_pad;
2352 #ifndef OPENSSL_NO_OCB
2353 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2355 EVP_AES_OCB_CTX *octx = c->cipher_data;
2356 EVP_CIPHER_CTX *newc;
2357 EVP_AES_OCB_CTX *new_octx;
2364 octx->ivlen = c->cipher->iv_len;
2367 octx->data_buf_len = 0;
2368 octx->aad_buf_len = 0;
2371 case EVP_CTRL_SET_IVLEN:
2372 /* IV len must be 1 to 15 */
2373 if (arg <= 0 || arg > 15)
2379 case EVP_CTRL_OCB_SET_TAGLEN:
2380 /* Tag len must be 0 to 16 */
2381 if (arg < 0 || arg > 16)
2387 case EVP_CTRL_SET_TAG:
2388 if (arg != octx->taglen || c->encrypt)
2390 memcpy(octx->tag, ptr, arg);
2393 case EVP_CTRL_GET_TAG:
2394 if (arg != octx->taglen || !c->encrypt)
2397 memcpy(ptr, octx->tag, arg);
2401 newc = (EVP_CIPHER_CTX *)ptr;
2402 new_octx = newc->cipher_data;
2403 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2404 &new_octx->ksenc, &new_octx->ksdec);
2413 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2414 const unsigned char *iv, int enc)
2416 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2423 /* We set both the encrypt and decrypt key here because decrypt
2424 * needs both. We could possibly optimise to remove setting the
2425 * decrypt for an encryption operation.
2427 #ifdef VPAES_CAPABLE
2430 vpaes_set_encrypt_key(key,ctx->key_len*8,&octx->ksenc);
2431 vpaes_set_decrypt_key(key,ctx->key_len*8,&octx->ksdec);
2432 if(!CRYPTO_ocb128_init(&octx->ocb,&octx->ksenc,&octx->ksdec,
2433 (block128_f)vpaes_encrypt,(block128_f)vpaes_decrypt))
2438 AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
2439 AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
2440 if(!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
2441 (block128_f)AES_encrypt, (block128_f)AES_decrypt))
2446 /* If we have an iv we can set it directly, otherwise use
2449 if (iv == NULL && octx->iv_set)
2453 if(CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen) != 1)
2461 /* If key set use IV, otherwise copy */
2463 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2465 memcpy(octx->iv, iv, octx->ivlen);
2471 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2472 const unsigned char *in, size_t len)
2476 int written_len = 0;
2477 size_t trailing_len;
2478 EVP_AES_OCB_CTX *octx = ctx->cipher_data;
2480 /* If IV or Key not set then return error */
2489 /* Need to ensure we are only passing full blocks to low level OCB
2490 * routines. We do it here rather than in EVP_EncryptUpdate/
2491 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2492 * and those routines don't support that
2495 /* Are we dealing with AAD or normal data here? */
2498 buf = octx->aad_buf;
2499 buf_len = &(octx->aad_buf_len);
2503 buf = octx->data_buf;
2504 buf_len = &(octx->data_buf_len);
2507 /* If we've got a partially filled buffer from a previous call then use
2512 unsigned int remaining;
2514 remaining = 16 - (*buf_len);
2517 memcpy(buf+(*buf_len), in, len);
2521 memcpy(buf+(*buf_len), in, remaining);
2523 /* If we get here we've filled the buffer, so process it */
2528 if(!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2531 else if (ctx->encrypt)
2533 if(!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2538 if(!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2545 /* Do we have a partial block to handle at the end? */
2546 trailing_len = len % 16;
2548 /* If we've got some full blocks to handle, then process these first */
2549 if(len != trailing_len)
2553 if(!CRYPTO_ocb128_aad(&octx->ocb, in, len-trailing_len))
2556 else if (ctx->encrypt)
2558 if(!CRYPTO_ocb128_encrypt(&octx->ocb, in, out, len-trailing_len))
2563 if(!CRYPTO_ocb128_decrypt(&octx->ocb, in, out, len-trailing_len))
2566 written_len += len-trailing_len;
2567 in += len-trailing_len;
2570 /* Handle any trailing partial block */
2573 memcpy(buf, in, trailing_len);
2574 *buf_len = trailing_len;
2581 /* First of all empty the buffer of any partial block that we might
2582 * have been provided - both for data and AAD
2584 if(octx->data_buf_len)
2588 if(!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2589 octx->data_buf_len))
2594 if(!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2595 octx->data_buf_len))
2598 written_len = octx->data_buf_len;
2599 octx->data_buf_len = 0;
2601 if(octx->aad_buf_len)
2603 if(!CRYPTO_ocb128_aad(&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2605 octx->aad_buf_len = 0;
2607 /* If decrypting then verify */
2610 if (octx->taglen < 0)
2612 if (CRYPTO_ocb128_finish(&octx->ocb,
2613 octx->tag, octx->taglen) != 0)
2618 /* If encrypting then just get the tag */
2619 if(CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2621 /* Don't reuse the IV */
2627 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2629 EVP_AES_OCB_CTX *octx = c->cipher_data;
2630 CRYPTO_ocb128_cleanup(&octx->ocb);
2634 BLOCK_CIPHER_custom(NID_aes,128,16,12,ocb,OCB,CUSTOM_FLAGS)
2635 BLOCK_CIPHER_custom(NID_aes,192,16,12,ocb,OCB,CUSTOM_FLAGS)
2636 BLOCK_CIPHER_custom(NID_aes,256,16,12,ocb,OCB,CUSTOM_FLAGS)
2637 #endif /* OPENSSL_NO_OCB */