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/)"
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24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
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30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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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 #include <openssl/crypto.h>
53 #include <openssl/evp.h>
54 #include <openssl/err.h>
57 #include <openssl/aes.h>
58 #include "internal/evp_int.h"
59 #include "modes_lcl.h"
60 #include <openssl/rand.h>
78 } ks; /* AES key schedule to use */
79 int key_set; /* Set if key initialised */
80 int iv_set; /* Set if an iv is set */
82 unsigned char *iv; /* Temporary IV store */
83 int ivlen; /* IV length */
85 int iv_gen; /* It is OK to generate IVs */
86 int tls_aad_len; /* TLS AAD length */
94 } ks1, ks2; /* AES key schedules to use */
96 void (*stream) (const unsigned char *in,
97 unsigned char *out, size_t length,
98 const AES_KEY *key1, const AES_KEY *key2,
99 const unsigned char iv[16]);
106 } ks; /* AES key schedule to use */
107 int key_set; /* Set if key initialised */
108 int iv_set; /* Set if an iv is set */
109 int tag_set; /* Set if tag is valid */
110 int len_set; /* Set if message length set */
111 int L, M; /* L and M parameters from RFC3610 */
112 int tls_aad_len; /* TLS AAD length */
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_C_DATA(EVP_AES_KEY,ctx);
296 mode = EVP_CIPHER_CTX_mode(ctx);
297 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
299 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
301 dat->block = (block128_f) aesni_decrypt;
302 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
303 (cbc128_f) aesni_cbc_encrypt : NULL;
305 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
307 dat->block = (block128_f) aesni_encrypt;
308 if (mode == EVP_CIPH_CBC_MODE)
309 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
310 else if (mode == EVP_CIPH_CTR_MODE)
311 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
313 dat->stream.cbc = NULL;
317 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
324 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
325 const unsigned char *in, size_t len)
327 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
328 EVP_CIPHER_CTX_iv_noconst(ctx),
329 EVP_CIPHER_CTX_encrypting(ctx));
334 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
335 const unsigned char *in, size_t len)
337 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
342 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
343 EVP_CIPHER_CTX_encrypting(ctx));
348 # define aesni_ofb_cipher aes_ofb_cipher
349 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
350 const unsigned char *in, size_t len);
352 # define aesni_cfb_cipher aes_cfb_cipher
353 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
354 const unsigned char *in, size_t len);
356 # define aesni_cfb8_cipher aes_cfb8_cipher
357 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
358 const unsigned char *in, size_t len);
360 # define aesni_cfb1_cipher aes_cfb1_cipher
361 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
362 const unsigned char *in, size_t len);
364 # define aesni_ctr_cipher aes_ctr_cipher
365 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
366 const unsigned char *in, size_t len);
368 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
369 const unsigned char *iv, int enc)
371 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
375 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
377 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
378 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
380 * If we have an iv can set it directly, otherwise use saved IV.
382 if (iv == NULL && gctx->iv_set)
385 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
390 /* If key set use IV, otherwise copy */
392 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
394 memcpy(gctx->iv, iv, gctx->ivlen);
401 # define aesni_gcm_cipher aes_gcm_cipher
402 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
403 const unsigned char *in, size_t len);
405 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
406 const unsigned char *iv, int enc)
408 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
413 /* key_len is two AES keys */
415 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
417 xctx->xts.block1 = (block128_f) aesni_encrypt;
418 xctx->stream = aesni_xts_encrypt;
420 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
422 xctx->xts.block1 = (block128_f) aesni_decrypt;
423 xctx->stream = aesni_xts_decrypt;
426 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
427 EVP_CIPHER_CTX_key_length(ctx) * 4,
429 xctx->xts.block2 = (block128_f) aesni_encrypt;
431 xctx->xts.key1 = &xctx->ks1;
435 xctx->xts.key2 = &xctx->ks2;
436 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), 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 = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
453 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
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;
462 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
468 # define aesni_ccm_cipher aes_ccm_cipher
469 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
470 const unsigned char *in, size_t len);
472 # ifndef OPENSSL_NO_OCB
473 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
474 size_t blocks, const void *key,
475 size_t start_block_num,
476 unsigned char offset_i[16],
477 const unsigned char L_[][16],
478 unsigned char checksum[16]);
479 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
480 size_t blocks, const void *key,
481 size_t start_block_num,
482 unsigned char offset_i[16],
483 const unsigned char L_[][16],
484 unsigned char checksum[16]);
486 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
487 const unsigned char *iv, int enc)
489 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
495 * We set both the encrypt and decrypt key here because decrypt
496 * needs both. We could possibly optimise to remove setting the
497 * decrypt for an encryption operation.
499 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
501 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
503 if (!CRYPTO_ocb128_init(&octx->ocb,
504 &octx->ksenc.ks, &octx->ksdec.ks,
505 (block128_f) aesni_encrypt,
506 (block128_f) aesni_decrypt,
507 enc ? aesni_ocb_encrypt
508 : aesni_ocb_decrypt))
514 * If we have an iv we can set it directly, otherwise use saved IV.
516 if (iv == NULL && octx->iv_set)
519 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
526 /* If key set use IV, otherwise copy */
528 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
530 memcpy(octx->iv, iv, octx->ivlen);
536 # define aesni_ocb_cipher aes_ocb_cipher
537 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
538 const unsigned char *in, size_t len);
539 # endif /* OPENSSL_NO_OCB */
541 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
542 static const EVP_CIPHER aesni_##keylen##_##mode = { \
543 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
544 flags|EVP_CIPH_##MODE##_MODE, \
546 aesni_##mode##_cipher, \
548 sizeof(EVP_AES_KEY), \
549 NULL,NULL,NULL,NULL }; \
550 static const EVP_CIPHER aes_##keylen##_##mode = { \
551 nid##_##keylen##_##nmode,blocksize, \
553 flags|EVP_CIPH_##MODE##_MODE, \
555 aes_##mode##_cipher, \
557 sizeof(EVP_AES_KEY), \
558 NULL,NULL,NULL,NULL }; \
559 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
560 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
562 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
563 static const EVP_CIPHER aesni_##keylen##_##mode = { \
564 nid##_##keylen##_##mode,blocksize, \
565 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
566 flags|EVP_CIPH_##MODE##_MODE, \
567 aesni_##mode##_init_key, \
568 aesni_##mode##_cipher, \
569 aes_##mode##_cleanup, \
570 sizeof(EVP_AES_##MODE##_CTX), \
571 NULL,NULL,aes_##mode##_ctrl,NULL }; \
572 static const EVP_CIPHER aes_##keylen##_##mode = { \
573 nid##_##keylen##_##mode,blocksize, \
574 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
575 flags|EVP_CIPH_##MODE##_MODE, \
576 aes_##mode##_init_key, \
577 aes_##mode##_cipher, \
578 aes_##mode##_cleanup, \
579 sizeof(EVP_AES_##MODE##_CTX), \
580 NULL,NULL,aes_##mode##_ctrl,NULL }; \
581 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
582 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
584 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
586 # include "sparc_arch.h"
588 extern unsigned int OPENSSL_sparcv9cap_P[];
590 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
592 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
593 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
594 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
596 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
599 * Key-length specific subroutines were chosen for following reason.
600 * Each SPARC T4 core can execute up to 8 threads which share core's
601 * resources. Loading as much key material to registers allows to
602 * minimize references to shared memory interface, as well as amount
603 * of instructions in inner loops [much needed on T4]. But then having
604 * non-key-length specific routines would require conditional branches
605 * either in inner loops or on subroutines' entries. Former is hardly
606 * acceptable, while latter means code size increase to size occupied
607 * by multiple key-length specific subroutines, so why fight?
609 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
610 size_t len, const AES_KEY *key,
611 unsigned char *ivec);
612 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
613 size_t len, const AES_KEY *key,
614 unsigned char *ivec);
615 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
616 size_t len, const AES_KEY *key,
617 unsigned char *ivec);
618 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
619 size_t len, const AES_KEY *key,
620 unsigned char *ivec);
621 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
622 size_t len, const AES_KEY *key,
623 unsigned char *ivec);
624 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
625 size_t len, const AES_KEY *key,
626 unsigned char *ivec);
627 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
628 size_t blocks, const AES_KEY *key,
629 unsigned char *ivec);
630 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
631 size_t blocks, const AES_KEY *key,
632 unsigned char *ivec);
633 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
634 size_t blocks, const AES_KEY *key,
635 unsigned char *ivec);
636 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
637 size_t blocks, const AES_KEY *key1,
638 const AES_KEY *key2, const unsigned char *ivec);
639 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
640 size_t blocks, const AES_KEY *key1,
641 const AES_KEY *key2, const unsigned char *ivec);
642 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
643 size_t blocks, const AES_KEY *key1,
644 const AES_KEY *key2, const unsigned char *ivec);
645 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
646 size_t blocks, const AES_KEY *key1,
647 const AES_KEY *key2, const unsigned char *ivec);
649 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
650 const unsigned char *iv, int enc)
653 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
655 mode = EVP_CIPHER_CTX_mode(ctx);
656 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
657 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
660 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
661 dat->block = (block128_f) aes_t4_decrypt;
664 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
665 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
668 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
669 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
672 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
673 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
680 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
681 dat->block = (block128_f) aes_t4_encrypt;
684 if (mode == EVP_CIPH_CBC_MODE)
685 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
686 else if (mode == EVP_CIPH_CTR_MODE)
687 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
689 dat->stream.cbc = NULL;
692 if (mode == EVP_CIPH_CBC_MODE)
693 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
694 else if (mode == EVP_CIPH_CTR_MODE)
695 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
697 dat->stream.cbc = NULL;
700 if (mode == EVP_CIPH_CBC_MODE)
701 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
702 else if (mode == EVP_CIPH_CTR_MODE)
703 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
705 dat->stream.cbc = NULL;
713 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
720 # define aes_t4_cbc_cipher aes_cbc_cipher
721 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
722 const unsigned char *in, size_t len);
724 # define aes_t4_ecb_cipher aes_ecb_cipher
725 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
726 const unsigned char *in, size_t len);
728 # define aes_t4_ofb_cipher aes_ofb_cipher
729 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
730 const unsigned char *in, size_t len);
732 # define aes_t4_cfb_cipher aes_cfb_cipher
733 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
734 const unsigned char *in, size_t len);
736 # define aes_t4_cfb8_cipher aes_cfb8_cipher
737 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
738 const unsigned char *in, size_t len);
740 # define aes_t4_cfb1_cipher aes_cfb1_cipher
741 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
742 const unsigned char *in, size_t len);
744 # define aes_t4_ctr_cipher aes_ctr_cipher
745 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
746 const unsigned char *in, size_t len);
748 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
749 const unsigned char *iv, int enc)
751 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
755 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
756 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
757 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
758 (block128_f) aes_t4_encrypt);
761 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
764 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
767 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
773 * If we have an iv can set it directly, otherwise use saved IV.
775 if (iv == NULL && gctx->iv_set)
778 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
783 /* If key set use IV, otherwise copy */
785 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
787 memcpy(gctx->iv, iv, gctx->ivlen);
794 # define aes_t4_gcm_cipher aes_gcm_cipher
795 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
796 const unsigned char *in, size_t len);
798 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
799 const unsigned char *iv, int enc)
801 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
806 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
808 /* key_len is two AES keys */
810 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
811 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
814 xctx->stream = aes128_t4_xts_encrypt;
817 xctx->stream = aes256_t4_xts_encrypt;
823 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
825 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
828 xctx->stream = aes128_t4_xts_decrypt;
831 xctx->stream = aes256_t4_xts_decrypt;
838 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
839 EVP_CIPHER_CTX_key_length(ctx) * 4,
841 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
843 xctx->xts.key1 = &xctx->ks1;
847 xctx->xts.key2 = &xctx->ks2;
848 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
854 # define aes_t4_xts_cipher aes_xts_cipher
855 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
856 const unsigned char *in, size_t len);
858 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
859 const unsigned char *iv, int enc)
861 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
865 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
866 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
867 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
868 &cctx->ks, (block128_f) aes_t4_encrypt);
873 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
879 # define aes_t4_ccm_cipher aes_ccm_cipher
880 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
881 const unsigned char *in, size_t len);
883 # ifndef OPENSSL_NO_OCB
884 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
885 const unsigned char *iv, int enc)
887 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
893 * We set both the encrypt and decrypt key here because decrypt
894 * needs both. We could possibly optimise to remove setting the
895 * decrypt for an encryption operation.
897 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
899 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
901 if (!CRYPTO_ocb128_init(&octx->ocb,
902 &octx->ksenc.ks, &octx->ksdec.ks,
903 (block128_f) aes_t4_encrypt,
904 (block128_f) aes_t4_decrypt,
911 * If we have an iv we can set it directly, otherwise use saved IV.
913 if (iv == NULL && octx->iv_set)
916 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
923 /* If key set use IV, otherwise copy */
925 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
927 memcpy(octx->iv, iv, octx->ivlen);
933 # define aes_t4_ocb_cipher aes_ocb_cipher
934 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
935 const unsigned char *in, size_t len);
936 # endif /* OPENSSL_NO_OCB */
938 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
939 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
940 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
941 flags|EVP_CIPH_##MODE##_MODE, \
943 aes_t4_##mode##_cipher, \
945 sizeof(EVP_AES_KEY), \
946 NULL,NULL,NULL,NULL }; \
947 static const EVP_CIPHER aes_##keylen##_##mode = { \
948 nid##_##keylen##_##nmode,blocksize, \
950 flags|EVP_CIPH_##MODE##_MODE, \
952 aes_##mode##_cipher, \
954 sizeof(EVP_AES_KEY), \
955 NULL,NULL,NULL,NULL }; \
956 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
957 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
959 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
960 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
961 nid##_##keylen##_##mode,blocksize, \
962 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
963 flags|EVP_CIPH_##MODE##_MODE, \
964 aes_t4_##mode##_init_key, \
965 aes_t4_##mode##_cipher, \
966 aes_##mode##_cleanup, \
967 sizeof(EVP_AES_##MODE##_CTX), \
968 NULL,NULL,aes_##mode##_ctrl,NULL }; \
969 static const EVP_CIPHER aes_##keylen##_##mode = { \
970 nid##_##keylen##_##mode,blocksize, \
971 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
972 flags|EVP_CIPH_##MODE##_MODE, \
973 aes_##mode##_init_key, \
974 aes_##mode##_cipher, \
975 aes_##mode##_cleanup, \
976 sizeof(EVP_AES_##MODE##_CTX), \
977 NULL,NULL,aes_##mode##_ctrl,NULL }; \
978 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
979 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
983 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
984 static const EVP_CIPHER aes_##keylen##_##mode = { \
985 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
986 flags|EVP_CIPH_##MODE##_MODE, \
988 aes_##mode##_cipher, \
990 sizeof(EVP_AES_KEY), \
991 NULL,NULL,NULL,NULL }; \
992 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
993 { return &aes_##keylen##_##mode; }
995 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
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 &aes_##keylen##_##mode; }
1010 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
1011 # include "arm_arch.h"
1012 # if __ARM_MAX_ARCH__>=7
1013 # if defined(BSAES_ASM)
1014 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1016 # if defined(VPAES_ASM)
1017 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1019 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
1020 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
1021 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
1022 # define HWAES_encrypt aes_v8_encrypt
1023 # define HWAES_decrypt aes_v8_decrypt
1024 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
1025 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1029 #if defined(HWAES_CAPABLE)
1030 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1032 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1034 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1035 const AES_KEY *key);
1036 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1037 const AES_KEY *key);
1038 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1039 size_t length, const AES_KEY *key,
1040 unsigned char *ivec, const int enc);
1041 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1042 size_t len, const AES_KEY *key,
1043 const unsigned char ivec[16]);
1046 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1047 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1048 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1049 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1050 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1051 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1052 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1053 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1055 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1056 const unsigned char *iv, int enc)
1059 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1061 mode = EVP_CIPHER_CTX_mode(ctx);
1062 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1064 #ifdef HWAES_CAPABLE
1065 if (HWAES_CAPABLE) {
1066 ret = HWAES_set_decrypt_key(key,
1067 EVP_CIPHER_CTX_key_length(ctx) * 8,
1069 dat->block = (block128_f) HWAES_decrypt;
1070 dat->stream.cbc = NULL;
1071 # ifdef HWAES_cbc_encrypt
1072 if (mode == EVP_CIPH_CBC_MODE)
1073 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1077 #ifdef BSAES_CAPABLE
1078 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1079 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1081 dat->block = (block128_f) AES_decrypt;
1082 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1085 #ifdef VPAES_CAPABLE
1086 if (VPAES_CAPABLE) {
1087 ret = vpaes_set_decrypt_key(key,
1088 EVP_CIPHER_CTX_key_length(ctx) * 8,
1090 dat->block = (block128_f) vpaes_decrypt;
1091 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1092 (cbc128_f) vpaes_cbc_encrypt : NULL;
1096 ret = AES_set_decrypt_key(key,
1097 EVP_CIPHER_CTX_key_length(ctx) * 8,
1099 dat->block = (block128_f) AES_decrypt;
1100 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1101 (cbc128_f) AES_cbc_encrypt : NULL;
1103 #ifdef HWAES_CAPABLE
1104 if (HWAES_CAPABLE) {
1105 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1107 dat->block = (block128_f) HWAES_encrypt;
1108 dat->stream.cbc = NULL;
1109 # ifdef HWAES_cbc_encrypt
1110 if (mode == EVP_CIPH_CBC_MODE)
1111 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1114 # ifdef HWAES_ctr32_encrypt_blocks
1115 if (mode == EVP_CIPH_CTR_MODE)
1116 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1119 (void)0; /* terminate potentially open 'else' */
1122 #ifdef BSAES_CAPABLE
1123 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1124 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1126 dat->block = (block128_f) AES_encrypt;
1127 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1130 #ifdef VPAES_CAPABLE
1131 if (VPAES_CAPABLE) {
1132 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1134 dat->block = (block128_f) vpaes_encrypt;
1135 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1136 (cbc128_f) vpaes_cbc_encrypt : NULL;
1140 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1142 dat->block = (block128_f) AES_encrypt;
1143 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1144 (cbc128_f) AES_cbc_encrypt : NULL;
1146 if (mode == EVP_CIPH_CTR_MODE)
1147 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1152 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1159 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1160 const unsigned char *in, size_t len)
1162 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1164 if (dat->stream.cbc)
1165 (*dat->stream.cbc) (in, out, len, &dat->ks,
1166 EVP_CIPHER_CTX_iv_noconst(ctx),
1167 EVP_CIPHER_CTX_encrypting(ctx));
1168 else if (EVP_CIPHER_CTX_encrypting(ctx))
1169 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
1170 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1172 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
1173 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1178 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1179 const unsigned char *in, size_t len)
1181 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
1183 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1188 for (i = 0, len -= bl; i <= len; i += bl)
1189 (*dat->block) (in + i, out + i, &dat->ks);
1194 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1195 const unsigned char *in, size_t len)
1197 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1199 int num = EVP_CIPHER_CTX_num(ctx);
1200 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1201 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
1202 EVP_CIPHER_CTX_set_num(ctx, num);
1206 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1207 const unsigned char *in, size_t len)
1209 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1211 int num = EVP_CIPHER_CTX_num(ctx);
1212 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1213 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1214 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1215 EVP_CIPHER_CTX_set_num(ctx, num);
1219 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1220 const unsigned char *in, size_t len)
1222 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1224 int num = EVP_CIPHER_CTX_num(ctx);
1225 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1226 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1227 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1228 EVP_CIPHER_CTX_set_num(ctx, num);
1232 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1233 const unsigned char *in, size_t len)
1235 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1237 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
1238 int num = EVP_CIPHER_CTX_num(ctx);
1239 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1240 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1241 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1242 EVP_CIPHER_CTX_set_num(ctx, num);
1246 while (len >= MAXBITCHUNK) {
1247 int num = EVP_CIPHER_CTX_num(ctx);
1248 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1249 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1250 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1251 EVP_CIPHER_CTX_set_num(ctx, num);
1255 int num = EVP_CIPHER_CTX_num(ctx);
1256 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1257 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1258 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1259 EVP_CIPHER_CTX_set_num(ctx, num);
1265 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1266 const unsigned char *in, size_t len)
1268 unsigned int num = EVP_CIPHER_CTX_num(ctx);
1269 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1271 if (dat->stream.ctr)
1272 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1273 EVP_CIPHER_CTX_iv_noconst(ctx),
1274 EVP_CIPHER_CTX_buf_noconst(ctx),
1275 &num, dat->stream.ctr);
1277 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1278 EVP_CIPHER_CTX_iv_noconst(ctx),
1279 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
1281 EVP_CIPHER_CTX_set_num(ctx, num);
1285 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1286 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1287 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1289 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1291 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1292 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1293 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1294 OPENSSL_free(gctx->iv);
1298 /* increment counter (64-bit int) by 1 */
1299 static void ctr64_inc(unsigned char *counter)
1314 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1316 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1321 gctx->ivlen = EVP_CIPHER_CTX_iv_length(c);
1322 gctx->iv = EVP_CIPHER_CTX_iv_noconst(c);
1325 gctx->tls_aad_len = -1;
1328 case EVP_CTRL_AEAD_SET_IVLEN:
1331 /* Allocate memory for IV if needed */
1332 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1333 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1334 OPENSSL_free(gctx->iv);
1335 gctx->iv = OPENSSL_malloc(arg);
1336 if (gctx->iv == NULL)
1342 case EVP_CTRL_AEAD_SET_TAG:
1343 if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c))
1345 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1349 case EVP_CTRL_AEAD_GET_TAG:
1350 if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c)
1351 || gctx->taglen < 0)
1353 memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg);
1356 case EVP_CTRL_GCM_SET_IV_FIXED:
1357 /* Special case: -1 length restores whole IV */
1359 memcpy(gctx->iv, ptr, gctx->ivlen);
1364 * Fixed field must be at least 4 bytes and invocation field at least
1367 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1370 memcpy(gctx->iv, ptr, arg);
1371 if (EVP_CIPHER_CTX_encrypting(c)
1372 && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1377 case EVP_CTRL_GCM_IV_GEN:
1378 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1380 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1381 if (arg <= 0 || arg > gctx->ivlen)
1383 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1385 * Invocation field will be at least 8 bytes in size and so no need
1386 * to check wrap around or increment more than last 8 bytes.
1388 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1392 case EVP_CTRL_GCM_SET_IV_INV:
1393 if (gctx->iv_gen == 0 || gctx->key_set == 0
1394 || EVP_CIPHER_CTX_encrypting(c))
1396 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1397 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1401 case EVP_CTRL_AEAD_TLS1_AAD:
1402 /* Save the AAD for later use */
1403 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1405 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1406 gctx->tls_aad_len = arg;
1409 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1410 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1411 /* Correct length for explicit IV */
1412 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1413 /* If decrypting correct for tag too */
1414 if (!EVP_CIPHER_CTX_encrypting(c))
1415 len -= EVP_GCM_TLS_TAG_LEN;
1416 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1417 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1419 /* Extra padding: tag appended to record */
1420 return EVP_GCM_TLS_TAG_LEN;
1424 EVP_CIPHER_CTX *out = ptr;
1425 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
1426 if (gctx->gcm.key) {
1427 if (gctx->gcm.key != &gctx->ks)
1429 gctx_out->gcm.key = &gctx_out->ks;
1431 if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c))
1432 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1434 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1435 if (gctx_out->iv == NULL)
1437 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1448 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1449 const unsigned char *iv, int enc)
1451 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1456 #ifdef HWAES_CAPABLE
1457 if (HWAES_CAPABLE) {
1458 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1460 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1461 (block128_f) HWAES_encrypt);
1462 # ifdef HWAES_ctr32_encrypt_blocks
1463 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1470 #ifdef BSAES_CAPABLE
1471 if (BSAES_CAPABLE) {
1472 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1474 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1475 (block128_f) AES_encrypt);
1476 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1480 #ifdef VPAES_CAPABLE
1481 if (VPAES_CAPABLE) {
1482 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1484 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1485 (block128_f) vpaes_encrypt);
1490 (void)0; /* terminate potentially open 'else' */
1492 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1494 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1495 (block128_f) AES_encrypt);
1497 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1504 * If we have an iv can set it directly, otherwise use saved IV.
1506 if (iv == NULL && gctx->iv_set)
1509 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1514 /* If key set use IV, otherwise copy */
1516 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1518 memcpy(gctx->iv, iv, gctx->ivlen);
1526 * Handle TLS GCM packet format. This consists of the last portion of the IV
1527 * followed by the payload and finally the tag. On encrypt generate IV,
1528 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1532 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1533 const unsigned char *in, size_t len)
1535 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1537 /* Encrypt/decrypt must be performed in place */
1539 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1542 * Set IV from start of buffer or generate IV and write to start of
1545 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ?
1546 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1547 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1550 if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1553 /* Fix buffer and length to point to payload */
1554 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1555 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1556 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1557 if (EVP_CIPHER_CTX_encrypting(ctx)) {
1558 /* Encrypt payload */
1561 #if defined(AES_GCM_ASM)
1562 if (len >= 32 && AES_GCM_ASM(gctx)) {
1563 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1566 bulk = AES_gcm_encrypt(in, out, len,
1568 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1569 gctx->gcm.len.u[1] += bulk;
1572 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1575 len - bulk, gctx->ctr))
1579 #if defined(AES_GCM_ASM2)
1580 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1581 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1584 bulk = AES_gcm_encrypt(in, out, len,
1586 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1587 gctx->gcm.len.u[1] += bulk;
1590 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1591 in + bulk, out + bulk, len - bulk))
1595 /* Finally write tag */
1596 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1597 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1602 #if defined(AES_GCM_ASM)
1603 if (len >= 16 && AES_GCM_ASM(gctx)) {
1604 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1607 bulk = AES_gcm_decrypt(in, out, len,
1609 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1610 gctx->gcm.len.u[1] += bulk;
1613 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1616 len - bulk, gctx->ctr))
1620 #if defined(AES_GCM_ASM2)
1621 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1622 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1625 bulk = AES_gcm_decrypt(in, out, len,
1627 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1628 gctx->gcm.len.u[1] += bulk;
1631 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1632 in + bulk, out + bulk, len - bulk))
1636 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1637 EVP_GCM_TLS_TAG_LEN);
1638 /* If tag mismatch wipe buffer */
1639 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len,
1640 EVP_GCM_TLS_TAG_LEN)) {
1641 OPENSSL_cleanse(out, len);
1649 gctx->tls_aad_len = -1;
1653 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1654 const unsigned char *in, size_t len)
1656 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1657 /* If not set up, return error */
1661 if (gctx->tls_aad_len >= 0)
1662 return aes_gcm_tls_cipher(ctx, out, in, len);
1668 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1670 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
1673 #if defined(AES_GCM_ASM)
1674 if (len >= 32 && AES_GCM_ASM(gctx)) {
1675 size_t res = (16 - gctx->gcm.mres) % 16;
1677 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1680 bulk = AES_gcm_encrypt(in + res,
1681 out + res, len - res,
1682 gctx->gcm.key, gctx->gcm.Yi.c,
1684 gctx->gcm.len.u[1] += bulk;
1688 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1691 len - bulk, gctx->ctr))
1695 #if defined(AES_GCM_ASM2)
1696 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1697 size_t res = (16 - gctx->gcm.mres) % 16;
1699 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1702 bulk = AES_gcm_encrypt(in + res,
1703 out + res, len - res,
1704 gctx->gcm.key, gctx->gcm.Yi.c,
1706 gctx->gcm.len.u[1] += bulk;
1710 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1711 in + bulk, out + bulk, len - bulk))
1717 #if defined(AES_GCM_ASM)
1718 if (len >= 16 && AES_GCM_ASM(gctx)) {
1719 size_t res = (16 - gctx->gcm.mres) % 16;
1721 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1724 bulk = AES_gcm_decrypt(in + res,
1725 out + res, len - res,
1727 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1728 gctx->gcm.len.u[1] += bulk;
1732 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1735 len - bulk, gctx->ctr))
1739 #if defined(AES_GCM_ASM2)
1740 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1741 size_t res = (16 - gctx->gcm.mres) % 16;
1743 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1746 bulk = AES_gcm_decrypt(in + res,
1747 out + res, len - res,
1749 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1750 gctx->gcm.len.u[1] += bulk;
1754 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1755 in + bulk, out + bulk, len - bulk))
1761 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
1762 if (gctx->taglen < 0)
1764 if (CRYPTO_gcm128_finish(&gctx->gcm,
1765 EVP_CIPHER_CTX_buf_noconst(ctx),
1771 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16);
1773 /* Don't reuse the IV */
1780 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1781 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1782 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1783 | EVP_CIPH_CUSTOM_COPY)
1785 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1786 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1787 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1788 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1789 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1790 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1792 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1794 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
1795 if (type == EVP_CTRL_COPY) {
1796 EVP_CIPHER_CTX *out = ptr;
1797 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
1798 if (xctx->xts.key1) {
1799 if (xctx->xts.key1 != &xctx->ks1)
1801 xctx_out->xts.key1 = &xctx_out->ks1;
1803 if (xctx->xts.key2) {
1804 if (xctx->xts.key2 != &xctx->ks2)
1806 xctx_out->xts.key2 = &xctx_out->ks2;
1809 } else if (type != EVP_CTRL_INIT)
1811 /* key1 and key2 are used as an indicator both key and IV are set */
1812 xctx->xts.key1 = NULL;
1813 xctx->xts.key2 = NULL;
1817 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1818 const unsigned char *iv, int enc)
1820 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1827 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1829 xctx->stream = NULL;
1831 /* key_len is two AES keys */
1832 #ifdef HWAES_CAPABLE
1833 if (HWAES_CAPABLE) {
1835 HWAES_set_encrypt_key(key,
1836 EVP_CIPHER_CTX_key_length(ctx) * 4,
1838 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1840 HWAES_set_decrypt_key(key,
1841 EVP_CIPHER_CTX_key_length(ctx) * 4,
1843 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1846 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1847 EVP_CIPHER_CTX_key_length(ctx) * 4,
1849 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1851 xctx->xts.key1 = &xctx->ks1;
1855 #ifdef BSAES_CAPABLE
1857 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1860 #ifdef VPAES_CAPABLE
1861 if (VPAES_CAPABLE) {
1863 vpaes_set_encrypt_key(key,
1864 EVP_CIPHER_CTX_key_length(ctx) * 4,
1866 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1868 vpaes_set_decrypt_key(key,
1869 EVP_CIPHER_CTX_key_length(ctx) * 4,
1871 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1874 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1875 EVP_CIPHER_CTX_key_length(ctx) * 4,
1877 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1879 xctx->xts.key1 = &xctx->ks1;
1883 (void)0; /* terminate potentially open 'else' */
1886 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1888 xctx->xts.block1 = (block128_f) AES_encrypt;
1890 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1892 xctx->xts.block1 = (block128_f) AES_decrypt;
1895 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1896 EVP_CIPHER_CTX_key_length(ctx) * 4,
1898 xctx->xts.block2 = (block128_f) AES_encrypt;
1900 xctx->xts.key1 = &xctx->ks1;
1904 xctx->xts.key2 = &xctx->ks2;
1905 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
1911 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1912 const unsigned char *in, size_t len)
1914 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1915 if (!xctx->xts.key1 || !xctx->xts.key2)
1917 if (!out || !in || len < AES_BLOCK_SIZE)
1920 (*xctx->stream) (in, out, len,
1921 xctx->xts.key1, xctx->xts.key2,
1922 EVP_CIPHER_CTX_iv_noconst(ctx));
1923 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
1925 EVP_CIPHER_CTX_encrypting(ctx)))
1930 #define aes_xts_cleanup NULL
1932 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1933 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1934 | EVP_CIPH_CUSTOM_COPY)
1936 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1937 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1939 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1941 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
1950 cctx->tls_aad_len = -1;
1953 case EVP_CTRL_AEAD_TLS1_AAD:
1954 /* Save the AAD for later use */
1955 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1957 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1958 cctx->tls_aad_len = arg;
1961 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1962 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1963 /* Correct length for explicit IV */
1964 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1965 /* If decrypting correct for tag too */
1966 if (!EVP_CIPHER_CTX_encrypting(c))
1968 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1969 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1971 /* Extra padding: tag appended to record */
1974 case EVP_CTRL_CCM_SET_IV_FIXED:
1975 /* Sanity check length */
1976 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1978 /* Just copy to first part of IV */
1979 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
1982 case EVP_CTRL_AEAD_SET_IVLEN:
1984 case EVP_CTRL_CCM_SET_L:
1985 if (arg < 2 || arg > 8)
1990 case EVP_CTRL_AEAD_SET_TAG:
1991 if ((arg & 1) || arg < 4 || arg > 16)
1993 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
1997 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
2002 case EVP_CTRL_AEAD_GET_TAG:
2003 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
2005 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
2014 EVP_CIPHER_CTX *out = ptr;
2015 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
2016 if (cctx->ccm.key) {
2017 if (cctx->ccm.key != &cctx->ks)
2019 cctx_out->ccm.key = &cctx_out->ks;
2030 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2031 const unsigned char *iv, int enc)
2033 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2038 #ifdef HWAES_CAPABLE
2039 if (HWAES_CAPABLE) {
2040 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2043 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2044 &cctx->ks, (block128_f) HWAES_encrypt);
2050 #ifdef VPAES_CAPABLE
2051 if (VPAES_CAPABLE) {
2052 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2054 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2055 &cctx->ks, (block128_f) vpaes_encrypt);
2061 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2063 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2064 &cctx->ks, (block128_f) AES_encrypt);
2069 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
2075 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2076 const unsigned char *in, size_t len)
2078 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2079 CCM128_CONTEXT *ccm = &cctx->ccm;
2080 /* Encrypt/decrypt must be performed in place */
2081 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2083 /* If encrypting set explicit IV from sequence number (start of AAD) */
2084 if (EVP_CIPHER_CTX_encrypting(ctx))
2085 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
2086 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2087 /* Get rest of IV from explicit IV */
2088 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
2089 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2090 /* Correct length value */
2091 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2092 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
2096 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
2097 /* Fix buffer to point to payload */
2098 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2099 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2100 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2101 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2103 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2105 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2107 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2109 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2111 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2112 unsigned char tag[16];
2113 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2114 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2118 OPENSSL_cleanse(out, len);
2123 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2124 const unsigned char *in, size_t len)
2126 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2127 CCM128_CONTEXT *ccm = &cctx->ccm;
2128 /* If not set up, return error */
2132 if (cctx->tls_aad_len >= 0)
2133 return aes_ccm_tls_cipher(ctx, out, in, len);
2138 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
2142 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2148 /* If have AAD need message length */
2149 if (!cctx->len_set && len)
2151 CRYPTO_ccm128_aad(ccm, in, len);
2154 /* EVP_*Final() doesn't return any data */
2157 /* If not set length yet do it */
2158 if (!cctx->len_set) {
2159 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2164 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2165 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2167 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2173 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2175 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2176 unsigned char tag[16];
2177 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2178 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
2184 OPENSSL_cleanse(out, len);
2192 #define aes_ccm_cleanup NULL
2194 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2195 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2196 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2197 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2198 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2199 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2206 /* Indicates if IV has been set */
2210 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2211 const unsigned char *iv, int enc)
2213 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2217 if (EVP_CIPHER_CTX_encrypting(ctx))
2218 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2221 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2227 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
2228 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
2233 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2234 const unsigned char *in, size_t inlen)
2236 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2238 /* AES wrap with padding has IV length of 4, without padding 8 */
2239 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2240 /* No final operation so always return zero length */
2243 /* Input length must always be non-zero */
2246 /* If decrypting need at least 16 bytes and multiple of 8 */
2247 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
2249 /* If not padding input must be multiple of 8 */
2250 if (!pad && inlen & 0x7)
2253 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2254 /* If padding round up to multiple of 8 */
2256 inlen = (inlen + 7) / 8 * 8;
2261 * If not padding output will be exactly 8 bytes smaller than
2262 * input. If padding it will be at least 8 bytes smaller but we
2263 * don't know how much.
2269 if (EVP_CIPHER_CTX_encrypting(ctx))
2270 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2272 (block128_f) AES_encrypt);
2274 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2276 (block128_f) AES_decrypt);
2278 if (EVP_CIPHER_CTX_encrypting(ctx))
2279 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2280 out, in, inlen, (block128_f) AES_encrypt);
2282 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2283 out, in, inlen, (block128_f) AES_decrypt);
2285 return rv ? (int)rv : -1;
2288 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2289 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2290 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2292 static const EVP_CIPHER aes_128_wrap = {
2294 8, 16, 8, WRAP_FLAGS,
2295 aes_wrap_init_key, aes_wrap_cipher,
2297 sizeof(EVP_AES_WRAP_CTX),
2298 NULL, NULL, NULL, NULL
2301 const EVP_CIPHER *EVP_aes_128_wrap(void)
2303 return &aes_128_wrap;
2306 static const EVP_CIPHER aes_192_wrap = {
2308 8, 24, 8, WRAP_FLAGS,
2309 aes_wrap_init_key, aes_wrap_cipher,
2311 sizeof(EVP_AES_WRAP_CTX),
2312 NULL, NULL, NULL, NULL
2315 const EVP_CIPHER *EVP_aes_192_wrap(void)
2317 return &aes_192_wrap;
2320 static const EVP_CIPHER aes_256_wrap = {
2322 8, 32, 8, WRAP_FLAGS,
2323 aes_wrap_init_key, aes_wrap_cipher,
2325 sizeof(EVP_AES_WRAP_CTX),
2326 NULL, NULL, NULL, NULL
2329 const EVP_CIPHER *EVP_aes_256_wrap(void)
2331 return &aes_256_wrap;
2334 static const EVP_CIPHER aes_128_wrap_pad = {
2335 NID_id_aes128_wrap_pad,
2336 8, 16, 4, WRAP_FLAGS,
2337 aes_wrap_init_key, aes_wrap_cipher,
2339 sizeof(EVP_AES_WRAP_CTX),
2340 NULL, NULL, NULL, NULL
2343 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2345 return &aes_128_wrap_pad;
2348 static const EVP_CIPHER aes_192_wrap_pad = {
2349 NID_id_aes192_wrap_pad,
2350 8, 24, 4, WRAP_FLAGS,
2351 aes_wrap_init_key, aes_wrap_cipher,
2353 sizeof(EVP_AES_WRAP_CTX),
2354 NULL, NULL, NULL, NULL
2357 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2359 return &aes_192_wrap_pad;
2362 static const EVP_CIPHER aes_256_wrap_pad = {
2363 NID_id_aes256_wrap_pad,
2364 8, 32, 4, WRAP_FLAGS,
2365 aes_wrap_init_key, aes_wrap_cipher,
2367 sizeof(EVP_AES_WRAP_CTX),
2368 NULL, NULL, NULL, NULL
2371 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2373 return &aes_256_wrap_pad;
2376 #ifndef OPENSSL_NO_OCB
2377 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2379 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2380 EVP_CIPHER_CTX *newc;
2381 EVP_AES_OCB_CTX *new_octx;
2387 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
2388 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
2390 octx->data_buf_len = 0;
2391 octx->aad_buf_len = 0;
2394 case EVP_CTRL_AEAD_SET_IVLEN:
2395 /* IV len must be 1 to 15 */
2396 if (arg <= 0 || arg > 15)
2402 case EVP_CTRL_AEAD_SET_TAG:
2404 /* Tag len must be 0 to 16 */
2405 if (arg < 0 || arg > 16)
2411 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
2413 memcpy(octx->tag, ptr, arg);
2416 case EVP_CTRL_AEAD_GET_TAG:
2417 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
2420 memcpy(ptr, octx->tag, arg);
2424 newc = (EVP_CIPHER_CTX *)ptr;
2425 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
2426 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2427 &new_octx->ksenc.ks,
2428 &new_octx->ksdec.ks);
2436 # ifdef HWAES_CAPABLE
2437 # ifdef HWAES_ocb_encrypt
2438 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
2439 size_t blocks, const void *key,
2440 size_t start_block_num,
2441 unsigned char offset_i[16],
2442 const unsigned char L_[][16],
2443 unsigned char checksum[16]);
2445 # define HWAES_ocb_encrypt NULL
2447 # ifdef HWAES_ocb_decrypt
2448 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
2449 size_t blocks, const void *key,
2450 size_t start_block_num,
2451 unsigned char offset_i[16],
2452 const unsigned char L_[][16],
2453 unsigned char checksum[16]);
2455 # define HWAES_ocb_decrypt NULL
2459 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2460 const unsigned char *iv, int enc)
2462 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2468 * We set both the encrypt and decrypt key here because decrypt
2469 * needs both. We could possibly optimise to remove setting the
2470 * decrypt for an encryption operation.
2472 # ifdef HWAES_CAPABLE
2473 if (HWAES_CAPABLE) {
2474 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2476 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2478 if (!CRYPTO_ocb128_init(&octx->ocb,
2479 &octx->ksenc.ks, &octx->ksdec.ks,
2480 (block128_f) HWAES_encrypt,
2481 (block128_f) HWAES_decrypt,
2482 enc ? HWAES_ocb_encrypt
2483 : HWAES_ocb_decrypt))
2488 # ifdef VPAES_CAPABLE
2489 if (VPAES_CAPABLE) {
2490 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2492 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2494 if (!CRYPTO_ocb128_init(&octx->ocb,
2495 &octx->ksenc.ks, &octx->ksdec.ks,
2496 (block128_f) vpaes_encrypt,
2497 (block128_f) vpaes_decrypt,
2503 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2505 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2507 if (!CRYPTO_ocb128_init(&octx->ocb,
2508 &octx->ksenc.ks, &octx->ksdec.ks,
2509 (block128_f) AES_encrypt,
2510 (block128_f) AES_decrypt,
2517 * If we have an iv we can set it directly, otherwise use saved IV.
2519 if (iv == NULL && octx->iv_set)
2522 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2529 /* If key set use IV, otherwise copy */
2531 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2533 memcpy(octx->iv, iv, octx->ivlen);
2539 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2540 const unsigned char *in, size_t len)
2544 int written_len = 0;
2545 size_t trailing_len;
2546 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2548 /* If IV or Key not set then return error */
2557 * Need to ensure we are only passing full blocks to low level OCB
2558 * routines. We do it here rather than in EVP_EncryptUpdate/
2559 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2560 * and those routines don't support that
2563 /* Are we dealing with AAD or normal data here? */
2565 buf = octx->aad_buf;
2566 buf_len = &(octx->aad_buf_len);
2568 buf = octx->data_buf;
2569 buf_len = &(octx->data_buf_len);
2573 * If we've got a partially filled buffer from a previous call then
2574 * use that data first
2577 unsigned int remaining;
2579 remaining = 16 - (*buf_len);
2580 if (remaining > len) {
2581 memcpy(buf + (*buf_len), in, len);
2585 memcpy(buf + (*buf_len), in, remaining);
2588 * If we get here we've filled the buffer, so process it
2593 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2595 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2596 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2599 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2606 /* Do we have a partial block to handle at the end? */
2607 trailing_len = len % 16;
2610 * If we've got some full blocks to handle, then process these first
2612 if (len != trailing_len) {
2614 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2616 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2617 if (!CRYPTO_ocb128_encrypt
2618 (&octx->ocb, in, out, len - trailing_len))
2621 if (!CRYPTO_ocb128_decrypt
2622 (&octx->ocb, in, out, len - trailing_len))
2625 written_len += len - trailing_len;
2626 in += len - trailing_len;
2629 /* Handle any trailing partial block */
2631 memcpy(buf, in, trailing_len);
2632 *buf_len = trailing_len;
2638 * First of all empty the buffer of any partial block that we might
2639 * have been provided - both for data and AAD
2641 if (octx->data_buf_len) {
2642 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2643 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2644 octx->data_buf_len))
2647 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2648 octx->data_buf_len))
2651 written_len = octx->data_buf_len;
2652 octx->data_buf_len = 0;
2654 if (octx->aad_buf_len) {
2655 if (!CRYPTO_ocb128_aad
2656 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2658 octx->aad_buf_len = 0;
2660 /* If decrypting then verify */
2661 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
2662 if (octx->taglen < 0)
2664 if (CRYPTO_ocb128_finish(&octx->ocb,
2665 octx->tag, octx->taglen) != 0)
2670 /* If encrypting then just get the tag */
2671 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2673 /* Don't reuse the IV */
2679 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2681 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2682 CRYPTO_ocb128_cleanup(&octx->ocb);
2686 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
2687 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2688 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
2689 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2690 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
2691 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2692 #endif /* OPENSSL_NO_OCB */