2 * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #include <openssl/crypto.h>
12 #include <openssl/evp.h>
13 #include <openssl/err.h>
16 #include <openssl/aes.h>
17 #include "internal/evp_int.h"
18 #include "modes_lcl.h"
19 #include <openssl/rand.h>
37 } ks; /* AES key schedule to use */
38 int key_set; /* Set if key initialised */
39 int iv_set; /* Set if an iv is set */
41 unsigned char *iv; /* Temporary IV store */
42 int ivlen; /* IV length */
44 int iv_gen; /* It is OK to generate IVs */
45 int tls_aad_len; /* TLS AAD length */
53 } ks1, ks2; /* AES key schedules to use */
55 void (*stream) (const unsigned char *in,
56 unsigned char *out, size_t length,
57 const AES_KEY *key1, const AES_KEY *key2,
58 const unsigned char iv[16]);
65 } ks; /* AES key schedule to use */
66 int key_set; /* Set if key initialised */
67 int iv_set; /* Set if an iv is set */
68 int tag_set; /* Set if tag is valid */
69 int len_set; /* Set if message length set */
70 int L, M; /* L and M parameters from RFC3610 */
71 int tls_aad_len; /* TLS AAD length */
76 #ifndef OPENSSL_NO_OCB
81 } ksenc; /* AES key schedule to use for encryption */
85 } ksdec; /* AES key schedule to use for decryption */
86 int key_set; /* Set if key initialised */
87 int iv_set; /* Set if an iv is set */
89 unsigned char *iv; /* Temporary IV store */
90 unsigned char tag[16];
91 unsigned char data_buf[16]; /* Store partial data blocks */
92 unsigned char aad_buf[16]; /* Store partial AAD blocks */
95 int ivlen; /* IV length */
100 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
103 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
105 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
108 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
110 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
113 void vpaes_cbc_encrypt(const unsigned char *in,
116 const AES_KEY *key, unsigned char *ivec, int enc);
119 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
120 size_t length, const AES_KEY *key,
121 unsigned char ivec[16], int enc);
122 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
123 size_t len, const AES_KEY *key,
124 const unsigned char ivec[16]);
125 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
126 size_t len, const AES_KEY *key1,
127 const AES_KEY *key2, const unsigned char iv[16]);
128 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
129 size_t len, const AES_KEY *key1,
130 const AES_KEY *key2, const unsigned char iv[16]);
133 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
134 size_t blocks, const AES_KEY *key,
135 const unsigned char ivec[AES_BLOCK_SIZE]);
138 void AES_xts_encrypt(const char *inp, char *out, size_t len,
139 const AES_KEY *key1, const AES_KEY *key2,
140 const unsigned char iv[16]);
141 void AES_xts_decrypt(const char *inp, char *out, size_t len,
142 const AES_KEY *key1, const AES_KEY *key2,
143 const unsigned char iv[16]);
146 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
147 # include "ppc_arch.h"
149 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
151 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
152 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
153 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
154 # define HWAES_encrypt aes_p8_encrypt
155 # define HWAES_decrypt aes_p8_decrypt
156 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
157 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
158 # define HWAES_xts_encrypt aes_p8_xts_encrypt
159 # define HWAES_xts_decrypt aes_p8_xts_decrypt
162 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
163 ((defined(__i386) || defined(__i386__) || \
164 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
165 defined(__x86_64) || defined(__x86_64__) || \
166 defined(_M_AMD64) || defined(_M_X64) )
168 extern unsigned int OPENSSL_ia32cap_P[];
171 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
174 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
179 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
181 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
183 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
186 void aesni_encrypt(const unsigned char *in, unsigned char *out,
188 void aesni_decrypt(const unsigned char *in, unsigned char *out,
191 void aesni_ecb_encrypt(const unsigned char *in,
193 size_t length, const AES_KEY *key, int enc);
194 void aesni_cbc_encrypt(const unsigned char *in,
197 const AES_KEY *key, unsigned char *ivec, int enc);
199 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
202 const void *key, const unsigned char *ivec);
204 void aesni_xts_encrypt(const unsigned char *in,
207 const AES_KEY *key1, const AES_KEY *key2,
208 const unsigned char iv[16]);
210 void aesni_xts_decrypt(const unsigned char *in,
213 const AES_KEY *key1, const AES_KEY *key2,
214 const unsigned char iv[16]);
216 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
220 const unsigned char ivec[16],
221 unsigned char cmac[16]);
223 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
227 const unsigned char ivec[16],
228 unsigned char cmac[16]);
230 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
231 size_t aesni_gcm_encrypt(const unsigned char *in,
234 const void *key, unsigned char ivec[16], u64 *Xi);
235 # define AES_gcm_encrypt aesni_gcm_encrypt
236 size_t aesni_gcm_decrypt(const unsigned char *in,
239 const void *key, unsigned char ivec[16], u64 *Xi);
240 # define AES_gcm_decrypt aesni_gcm_decrypt
241 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
243 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
244 gctx->gcm.ghash==gcm_ghash_avx)
245 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
246 gctx->gcm.ghash==gcm_ghash_avx)
247 # undef AES_GCM_ASM2 /* minor size optimization */
250 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
251 const unsigned char *iv, int enc)
254 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
256 mode = EVP_CIPHER_CTX_mode(ctx);
257 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
259 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
261 dat->block = (block128_f) aesni_decrypt;
262 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
263 (cbc128_f) aesni_cbc_encrypt : NULL;
265 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
267 dat->block = (block128_f) aesni_encrypt;
268 if (mode == EVP_CIPH_CBC_MODE)
269 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
270 else if (mode == EVP_CIPH_CTR_MODE)
271 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
273 dat->stream.cbc = NULL;
277 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
284 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
285 const unsigned char *in, size_t len)
287 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
288 EVP_CIPHER_CTX_iv_noconst(ctx),
289 EVP_CIPHER_CTX_encrypting(ctx));
294 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
295 const unsigned char *in, size_t len)
297 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
302 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
303 EVP_CIPHER_CTX_encrypting(ctx));
308 # define aesni_ofb_cipher aes_ofb_cipher
309 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
310 const unsigned char *in, size_t len);
312 # define aesni_cfb_cipher aes_cfb_cipher
313 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
314 const unsigned char *in, size_t len);
316 # define aesni_cfb8_cipher aes_cfb8_cipher
317 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
318 const unsigned char *in, size_t len);
320 # define aesni_cfb1_cipher aes_cfb1_cipher
321 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
322 const unsigned char *in, size_t len);
324 # define aesni_ctr_cipher aes_ctr_cipher
325 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
326 const unsigned char *in, size_t len);
328 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
329 const unsigned char *iv, int enc)
331 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
335 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
337 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
338 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
340 * If we have an iv can set it directly, otherwise use saved IV.
342 if (iv == NULL && gctx->iv_set)
345 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
350 /* If key set use IV, otherwise copy */
352 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
354 memcpy(gctx->iv, iv, gctx->ivlen);
361 # define aesni_gcm_cipher aes_gcm_cipher
362 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
363 const unsigned char *in, size_t len);
365 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
366 const unsigned char *iv, int enc)
368 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
373 /* key_len is two AES keys */
375 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
377 xctx->xts.block1 = (block128_f) aesni_encrypt;
378 xctx->stream = aesni_xts_encrypt;
380 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
382 xctx->xts.block1 = (block128_f) aesni_decrypt;
383 xctx->stream = aesni_xts_decrypt;
386 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
387 EVP_CIPHER_CTX_key_length(ctx) * 4,
389 xctx->xts.block2 = (block128_f) aesni_encrypt;
391 xctx->xts.key1 = &xctx->ks1;
395 xctx->xts.key2 = &xctx->ks2;
396 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
402 # define aesni_xts_cipher aes_xts_cipher
403 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
404 const unsigned char *in, size_t len);
406 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
407 const unsigned char *iv, int enc)
409 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
413 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
415 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
416 &cctx->ks, (block128_f) aesni_encrypt);
417 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
418 (ccm128_f) aesni_ccm64_decrypt_blocks;
422 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
428 # define aesni_ccm_cipher aes_ccm_cipher
429 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
430 const unsigned char *in, size_t len);
432 # ifndef OPENSSL_NO_OCB
433 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
434 size_t blocks, const void *key,
435 size_t start_block_num,
436 unsigned char offset_i[16],
437 const unsigned char L_[][16],
438 unsigned char checksum[16]);
439 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
440 size_t blocks, const void *key,
441 size_t start_block_num,
442 unsigned char offset_i[16],
443 const unsigned char L_[][16],
444 unsigned char checksum[16]);
446 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
447 const unsigned char *iv, int enc)
449 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
455 * We set both the encrypt and decrypt key here because decrypt
456 * needs both. We could possibly optimise to remove setting the
457 * decrypt for an encryption operation.
459 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
461 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
463 if (!CRYPTO_ocb128_init(&octx->ocb,
464 &octx->ksenc.ks, &octx->ksdec.ks,
465 (block128_f) aesni_encrypt,
466 (block128_f) aesni_decrypt,
467 enc ? aesni_ocb_encrypt
468 : aesni_ocb_decrypt))
474 * If we have an iv we can set it directly, otherwise use saved IV.
476 if (iv == NULL && octx->iv_set)
479 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
486 /* If key set use IV, otherwise copy */
488 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
490 memcpy(octx->iv, iv, octx->ivlen);
496 # define aesni_ocb_cipher aes_ocb_cipher
497 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
498 const unsigned char *in, size_t len);
499 # endif /* OPENSSL_NO_OCB */
501 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
502 static const EVP_CIPHER aesni_##keylen##_##mode = { \
503 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
504 flags|EVP_CIPH_##MODE##_MODE, \
506 aesni_##mode##_cipher, \
508 sizeof(EVP_AES_KEY), \
509 NULL,NULL,NULL,NULL }; \
510 static const EVP_CIPHER aes_##keylen##_##mode = { \
511 nid##_##keylen##_##nmode,blocksize, \
513 flags|EVP_CIPH_##MODE##_MODE, \
515 aes_##mode##_cipher, \
517 sizeof(EVP_AES_KEY), \
518 NULL,NULL,NULL,NULL }; \
519 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
520 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
522 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
523 static const EVP_CIPHER aesni_##keylen##_##mode = { \
524 nid##_##keylen##_##mode,blocksize, \
525 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
526 flags|EVP_CIPH_##MODE##_MODE, \
527 aesni_##mode##_init_key, \
528 aesni_##mode##_cipher, \
529 aes_##mode##_cleanup, \
530 sizeof(EVP_AES_##MODE##_CTX), \
531 NULL,NULL,aes_##mode##_ctrl,NULL }; \
532 static const EVP_CIPHER aes_##keylen##_##mode = { \
533 nid##_##keylen##_##mode,blocksize, \
534 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
535 flags|EVP_CIPH_##MODE##_MODE, \
536 aes_##mode##_init_key, \
537 aes_##mode##_cipher, \
538 aes_##mode##_cleanup, \
539 sizeof(EVP_AES_##MODE##_CTX), \
540 NULL,NULL,aes_##mode##_ctrl,NULL }; \
541 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
542 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
544 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
546 # include "sparc_arch.h"
548 extern unsigned int OPENSSL_sparcv9cap_P[];
551 * Initial Fujitsu SPARC64 X support
553 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
554 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
555 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
556 # define HWAES_encrypt aes_fx_encrypt
557 # define HWAES_decrypt aes_fx_decrypt
559 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
561 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
562 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
563 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
565 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
568 * Key-length specific subroutines were chosen for following reason.
569 * Each SPARC T4 core can execute up to 8 threads which share core's
570 * resources. Loading as much key material to registers allows to
571 * minimize references to shared memory interface, as well as amount
572 * of instructions in inner loops [much needed on T4]. But then having
573 * non-key-length specific routines would require conditional branches
574 * either in inner loops or on subroutines' entries. Former is hardly
575 * acceptable, while latter means code size increase to size occupied
576 * by multiple key-length specific subroutines, so why fight?
578 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
579 size_t len, const AES_KEY *key,
580 unsigned char *ivec);
581 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
582 size_t len, const AES_KEY *key,
583 unsigned char *ivec);
584 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
585 size_t len, const AES_KEY *key,
586 unsigned char *ivec);
587 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
588 size_t len, const AES_KEY *key,
589 unsigned char *ivec);
590 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
591 size_t len, const AES_KEY *key,
592 unsigned char *ivec);
593 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
594 size_t len, const AES_KEY *key,
595 unsigned char *ivec);
596 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
597 size_t blocks, const AES_KEY *key,
598 unsigned char *ivec);
599 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
600 size_t blocks, const AES_KEY *key,
601 unsigned char *ivec);
602 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
603 size_t blocks, const AES_KEY *key,
604 unsigned char *ivec);
605 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
606 size_t blocks, const AES_KEY *key1,
607 const AES_KEY *key2, const unsigned char *ivec);
608 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
609 size_t blocks, const AES_KEY *key1,
610 const AES_KEY *key2, const unsigned char *ivec);
611 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
612 size_t blocks, const AES_KEY *key1,
613 const AES_KEY *key2, const unsigned char *ivec);
614 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
615 size_t blocks, const AES_KEY *key1,
616 const AES_KEY *key2, const unsigned char *ivec);
618 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
619 const unsigned char *iv, int enc)
622 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
624 mode = EVP_CIPHER_CTX_mode(ctx);
625 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
626 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
629 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
630 dat->block = (block128_f) aes_t4_decrypt;
633 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
634 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
637 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
638 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
641 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
642 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
649 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
650 dat->block = (block128_f) aes_t4_encrypt;
653 if (mode == EVP_CIPH_CBC_MODE)
654 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
655 else if (mode == EVP_CIPH_CTR_MODE)
656 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
658 dat->stream.cbc = NULL;
661 if (mode == EVP_CIPH_CBC_MODE)
662 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
663 else if (mode == EVP_CIPH_CTR_MODE)
664 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
666 dat->stream.cbc = NULL;
669 if (mode == EVP_CIPH_CBC_MODE)
670 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
671 else if (mode == EVP_CIPH_CTR_MODE)
672 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
674 dat->stream.cbc = NULL;
682 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
689 # define aes_t4_cbc_cipher aes_cbc_cipher
690 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
691 const unsigned char *in, size_t len);
693 # define aes_t4_ecb_cipher aes_ecb_cipher
694 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
695 const unsigned char *in, size_t len);
697 # define aes_t4_ofb_cipher aes_ofb_cipher
698 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
699 const unsigned char *in, size_t len);
701 # define aes_t4_cfb_cipher aes_cfb_cipher
702 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
703 const unsigned char *in, size_t len);
705 # define aes_t4_cfb8_cipher aes_cfb8_cipher
706 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
707 const unsigned char *in, size_t len);
709 # define aes_t4_cfb1_cipher aes_cfb1_cipher
710 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
711 const unsigned char *in, size_t len);
713 # define aes_t4_ctr_cipher aes_ctr_cipher
714 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
715 const unsigned char *in, size_t len);
717 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
718 const unsigned char *iv, int enc)
720 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
724 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
725 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
726 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
727 (block128_f) aes_t4_encrypt);
730 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
733 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
736 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
742 * If we have an iv can set it directly, otherwise use saved IV.
744 if (iv == NULL && gctx->iv_set)
747 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
752 /* If key set use IV, otherwise copy */
754 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
756 memcpy(gctx->iv, iv, gctx->ivlen);
763 # define aes_t4_gcm_cipher aes_gcm_cipher
764 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
765 const unsigned char *in, size_t len);
767 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
768 const unsigned char *iv, int enc)
770 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
775 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
777 /* key_len is two AES keys */
779 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
780 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
783 xctx->stream = aes128_t4_xts_encrypt;
786 xctx->stream = aes256_t4_xts_encrypt;
792 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
794 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
797 xctx->stream = aes128_t4_xts_decrypt;
800 xctx->stream = aes256_t4_xts_decrypt;
807 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
808 EVP_CIPHER_CTX_key_length(ctx) * 4,
810 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
812 xctx->xts.key1 = &xctx->ks1;
816 xctx->xts.key2 = &xctx->ks2;
817 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
823 # define aes_t4_xts_cipher aes_xts_cipher
824 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
825 const unsigned char *in, size_t len);
827 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
828 const unsigned char *iv, int enc)
830 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
834 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
835 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
836 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
837 &cctx->ks, (block128_f) aes_t4_encrypt);
842 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
848 # define aes_t4_ccm_cipher aes_ccm_cipher
849 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
850 const unsigned char *in, size_t len);
852 # ifndef OPENSSL_NO_OCB
853 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
854 const unsigned char *iv, int enc)
856 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
862 * We set both the encrypt and decrypt key here because decrypt
863 * needs both. We could possibly optimise to remove setting the
864 * decrypt for an encryption operation.
866 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
868 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
870 if (!CRYPTO_ocb128_init(&octx->ocb,
871 &octx->ksenc.ks, &octx->ksdec.ks,
872 (block128_f) aes_t4_encrypt,
873 (block128_f) aes_t4_decrypt,
880 * If we have an iv we can set it directly, otherwise use saved IV.
882 if (iv == NULL && octx->iv_set)
885 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
892 /* If key set use IV, otherwise copy */
894 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
896 memcpy(octx->iv, iv, octx->ivlen);
902 # define aes_t4_ocb_cipher aes_ocb_cipher
903 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
904 const unsigned char *in, size_t len);
905 # endif /* OPENSSL_NO_OCB */
907 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
908 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
909 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
910 flags|EVP_CIPH_##MODE##_MODE, \
912 aes_t4_##mode##_cipher, \
914 sizeof(EVP_AES_KEY), \
915 NULL,NULL,NULL,NULL }; \
916 static const EVP_CIPHER aes_##keylen##_##mode = { \
917 nid##_##keylen##_##nmode,blocksize, \
919 flags|EVP_CIPH_##MODE##_MODE, \
921 aes_##mode##_cipher, \
923 sizeof(EVP_AES_KEY), \
924 NULL,NULL,NULL,NULL }; \
925 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
926 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
928 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
929 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
930 nid##_##keylen##_##mode,blocksize, \
931 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
932 flags|EVP_CIPH_##MODE##_MODE, \
933 aes_t4_##mode##_init_key, \
934 aes_t4_##mode##_cipher, \
935 aes_##mode##_cleanup, \
936 sizeof(EVP_AES_##MODE##_CTX), \
937 NULL,NULL,aes_##mode##_ctrl,NULL }; \
938 static const EVP_CIPHER aes_##keylen##_##mode = { \
939 nid##_##keylen##_##mode,blocksize, \
940 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
941 flags|EVP_CIPH_##MODE##_MODE, \
942 aes_##mode##_init_key, \
943 aes_##mode##_cipher, \
944 aes_##mode##_cleanup, \
945 sizeof(EVP_AES_##MODE##_CTX), \
946 NULL,NULL,aes_##mode##_ctrl,NULL }; \
947 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
948 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
952 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
953 static const EVP_CIPHER aes_##keylen##_##mode = { \
954 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
955 flags|EVP_CIPH_##MODE##_MODE, \
957 aes_##mode##_cipher, \
959 sizeof(EVP_AES_KEY), \
960 NULL,NULL,NULL,NULL }; \
961 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
962 { return &aes_##keylen##_##mode; }
964 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
965 static const EVP_CIPHER aes_##keylen##_##mode = { \
966 nid##_##keylen##_##mode,blocksize, \
967 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
968 flags|EVP_CIPH_##MODE##_MODE, \
969 aes_##mode##_init_key, \
970 aes_##mode##_cipher, \
971 aes_##mode##_cleanup, \
972 sizeof(EVP_AES_##MODE##_CTX), \
973 NULL,NULL,aes_##mode##_ctrl,NULL }; \
974 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
975 { return &aes_##keylen##_##mode; }
979 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
980 # include "arm_arch.h"
981 # if __ARM_MAX_ARCH__>=7
982 # if defined(BSAES_ASM)
983 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
985 # if defined(VPAES_ASM)
986 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
988 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
989 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
990 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
991 # define HWAES_encrypt aes_v8_encrypt
992 # define HWAES_decrypt aes_v8_decrypt
993 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
994 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
998 #if defined(HWAES_CAPABLE)
999 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1001 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1003 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1004 const AES_KEY *key);
1005 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1006 const AES_KEY *key);
1007 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1008 size_t length, const AES_KEY *key,
1009 unsigned char *ivec, const int enc);
1010 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1011 size_t len, const AES_KEY *key,
1012 const unsigned char ivec[16]);
1013 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
1014 size_t len, const AES_KEY *key1,
1015 const AES_KEY *key2, const unsigned char iv[16]);
1016 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
1017 size_t len, const AES_KEY *key1,
1018 const AES_KEY *key2, const unsigned char iv[16]);
1021 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1022 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1023 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1024 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1025 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1026 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1027 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1028 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1030 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1031 const unsigned char *iv, int enc)
1034 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1036 mode = EVP_CIPHER_CTX_mode(ctx);
1037 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1039 #ifdef HWAES_CAPABLE
1040 if (HWAES_CAPABLE) {
1041 ret = HWAES_set_decrypt_key(key,
1042 EVP_CIPHER_CTX_key_length(ctx) * 8,
1044 dat->block = (block128_f) HWAES_decrypt;
1045 dat->stream.cbc = NULL;
1046 # ifdef HWAES_cbc_encrypt
1047 if (mode == EVP_CIPH_CBC_MODE)
1048 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1052 #ifdef BSAES_CAPABLE
1053 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1054 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1056 dat->block = (block128_f) AES_decrypt;
1057 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1060 #ifdef VPAES_CAPABLE
1061 if (VPAES_CAPABLE) {
1062 ret = vpaes_set_decrypt_key(key,
1063 EVP_CIPHER_CTX_key_length(ctx) * 8,
1065 dat->block = (block128_f) vpaes_decrypt;
1066 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1067 (cbc128_f) vpaes_cbc_encrypt : NULL;
1071 ret = AES_set_decrypt_key(key,
1072 EVP_CIPHER_CTX_key_length(ctx) * 8,
1074 dat->block = (block128_f) AES_decrypt;
1075 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1076 (cbc128_f) AES_cbc_encrypt : NULL;
1079 #ifdef HWAES_CAPABLE
1080 if (HWAES_CAPABLE) {
1081 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1083 dat->block = (block128_f) HWAES_encrypt;
1084 dat->stream.cbc = NULL;
1085 # ifdef HWAES_cbc_encrypt
1086 if (mode == EVP_CIPH_CBC_MODE)
1087 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1090 # ifdef HWAES_ctr32_encrypt_blocks
1091 if (mode == EVP_CIPH_CTR_MODE)
1092 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1095 (void)0; /* terminate potentially open 'else' */
1098 #ifdef BSAES_CAPABLE
1099 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1100 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1102 dat->block = (block128_f) AES_encrypt;
1103 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1106 #ifdef VPAES_CAPABLE
1107 if (VPAES_CAPABLE) {
1108 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1110 dat->block = (block128_f) vpaes_encrypt;
1111 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1112 (cbc128_f) vpaes_cbc_encrypt : NULL;
1116 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1118 dat->block = (block128_f) AES_encrypt;
1119 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1120 (cbc128_f) AES_cbc_encrypt : NULL;
1122 if (mode == EVP_CIPH_CTR_MODE)
1123 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1128 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1135 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1136 const unsigned char *in, size_t len)
1138 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1140 if (dat->stream.cbc)
1141 (*dat->stream.cbc) (in, out, len, &dat->ks,
1142 EVP_CIPHER_CTX_iv_noconst(ctx),
1143 EVP_CIPHER_CTX_encrypting(ctx));
1144 else if (EVP_CIPHER_CTX_encrypting(ctx))
1145 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
1146 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1148 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
1149 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1154 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1155 const unsigned char *in, size_t len)
1157 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
1159 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1164 for (i = 0, len -= bl; i <= len; i += bl)
1165 (*dat->block) (in + i, out + i, &dat->ks);
1170 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1171 const unsigned char *in, size_t len)
1173 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1175 int num = EVP_CIPHER_CTX_num(ctx);
1176 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1177 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
1178 EVP_CIPHER_CTX_set_num(ctx, num);
1182 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1183 const unsigned char *in, size_t len)
1185 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1187 int num = EVP_CIPHER_CTX_num(ctx);
1188 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1189 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1190 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1191 EVP_CIPHER_CTX_set_num(ctx, num);
1195 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1196 const unsigned char *in, size_t len)
1198 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1200 int num = EVP_CIPHER_CTX_num(ctx);
1201 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1202 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1203 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1204 EVP_CIPHER_CTX_set_num(ctx, num);
1208 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1209 const unsigned char *in, size_t len)
1211 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1213 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
1214 int num = EVP_CIPHER_CTX_num(ctx);
1215 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1216 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1217 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1218 EVP_CIPHER_CTX_set_num(ctx, num);
1222 while (len >= MAXBITCHUNK) {
1223 int num = EVP_CIPHER_CTX_num(ctx);
1224 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1225 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1226 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1227 EVP_CIPHER_CTX_set_num(ctx, num);
1231 int num = EVP_CIPHER_CTX_num(ctx);
1232 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1233 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1234 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1235 EVP_CIPHER_CTX_set_num(ctx, num);
1241 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1242 const unsigned char *in, size_t len)
1244 unsigned int num = EVP_CIPHER_CTX_num(ctx);
1245 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1247 if (dat->stream.ctr)
1248 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1249 EVP_CIPHER_CTX_iv_noconst(ctx),
1250 EVP_CIPHER_CTX_buf_noconst(ctx),
1251 &num, dat->stream.ctr);
1253 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1254 EVP_CIPHER_CTX_iv_noconst(ctx),
1255 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
1257 EVP_CIPHER_CTX_set_num(ctx, num);
1261 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1262 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1263 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1265 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1267 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1268 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1269 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1270 OPENSSL_free(gctx->iv);
1274 /* increment counter (64-bit int) by 1 */
1275 static void ctr64_inc(unsigned char *counter)
1290 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1292 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1297 gctx->ivlen = EVP_CIPHER_CTX_iv_length(c);
1298 gctx->iv = EVP_CIPHER_CTX_iv_noconst(c);
1301 gctx->tls_aad_len = -1;
1304 case EVP_CTRL_AEAD_SET_IVLEN:
1307 /* Allocate memory for IV if needed */
1308 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1309 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1310 OPENSSL_free(gctx->iv);
1311 gctx->iv = OPENSSL_malloc(arg);
1312 if (gctx->iv == NULL)
1318 case EVP_CTRL_AEAD_SET_TAG:
1319 if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c))
1321 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1325 case EVP_CTRL_AEAD_GET_TAG:
1326 if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c)
1327 || gctx->taglen < 0)
1329 memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg);
1332 case EVP_CTRL_GCM_SET_IV_FIXED:
1333 /* Special case: -1 length restores whole IV */
1335 memcpy(gctx->iv, ptr, gctx->ivlen);
1340 * Fixed field must be at least 4 bytes and invocation field at least
1343 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1346 memcpy(gctx->iv, ptr, arg);
1347 if (EVP_CIPHER_CTX_encrypting(c)
1348 && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1353 case EVP_CTRL_GCM_IV_GEN:
1354 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1356 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1357 if (arg <= 0 || arg > gctx->ivlen)
1359 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1361 * Invocation field will be at least 8 bytes in size and so no need
1362 * to check wrap around or increment more than last 8 bytes.
1364 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1368 case EVP_CTRL_GCM_SET_IV_INV:
1369 if (gctx->iv_gen == 0 || gctx->key_set == 0
1370 || EVP_CIPHER_CTX_encrypting(c))
1372 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1373 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1377 case EVP_CTRL_AEAD_TLS1_AAD:
1378 /* Save the AAD for later use */
1379 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1381 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1382 gctx->tls_aad_len = arg;
1385 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1386 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1387 /* Correct length for explicit IV */
1388 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1389 /* If decrypting correct for tag too */
1390 if (!EVP_CIPHER_CTX_encrypting(c))
1391 len -= EVP_GCM_TLS_TAG_LEN;
1392 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1393 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1395 /* Extra padding: tag appended to record */
1396 return EVP_GCM_TLS_TAG_LEN;
1400 EVP_CIPHER_CTX *out = ptr;
1401 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
1402 if (gctx->gcm.key) {
1403 if (gctx->gcm.key != &gctx->ks)
1405 gctx_out->gcm.key = &gctx_out->ks;
1407 if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c))
1408 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1410 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1411 if (gctx_out->iv == NULL)
1413 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1424 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1425 const unsigned char *iv, int enc)
1427 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1432 #ifdef HWAES_CAPABLE
1433 if (HWAES_CAPABLE) {
1434 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1436 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1437 (block128_f) HWAES_encrypt);
1438 # ifdef HWAES_ctr32_encrypt_blocks
1439 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1446 #ifdef BSAES_CAPABLE
1447 if (BSAES_CAPABLE) {
1448 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1450 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1451 (block128_f) AES_encrypt);
1452 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1456 #ifdef VPAES_CAPABLE
1457 if (VPAES_CAPABLE) {
1458 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1460 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1461 (block128_f) vpaes_encrypt);
1466 (void)0; /* terminate potentially open 'else' */
1468 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1470 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1471 (block128_f) AES_encrypt);
1473 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1480 * If we have an iv can set it directly, otherwise use saved IV.
1482 if (iv == NULL && gctx->iv_set)
1485 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1490 /* If key set use IV, otherwise copy */
1492 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1494 memcpy(gctx->iv, iv, gctx->ivlen);
1502 * Handle TLS GCM packet format. This consists of the last portion of the IV
1503 * followed by the payload and finally the tag. On encrypt generate IV,
1504 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1508 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1509 const unsigned char *in, size_t len)
1511 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1513 /* Encrypt/decrypt must be performed in place */
1515 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1518 * Set IV from start of buffer or generate IV and write to start of
1521 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ?
1522 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1523 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1526 if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1529 /* Fix buffer and length to point to payload */
1530 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1531 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1532 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1533 if (EVP_CIPHER_CTX_encrypting(ctx)) {
1534 /* Encrypt payload */
1537 #if defined(AES_GCM_ASM)
1538 if (len >= 32 && AES_GCM_ASM(gctx)) {
1539 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1542 bulk = AES_gcm_encrypt(in, out, len,
1544 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1545 gctx->gcm.len.u[1] += bulk;
1548 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1551 len - bulk, gctx->ctr))
1555 #if defined(AES_GCM_ASM2)
1556 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1557 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1560 bulk = AES_gcm_encrypt(in, out, len,
1562 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1563 gctx->gcm.len.u[1] += bulk;
1566 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1567 in + bulk, out + bulk, len - bulk))
1571 /* Finally write tag */
1572 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1573 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1578 #if defined(AES_GCM_ASM)
1579 if (len >= 16 && AES_GCM_ASM(gctx)) {
1580 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1583 bulk = AES_gcm_decrypt(in, out, len,
1585 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1586 gctx->gcm.len.u[1] += bulk;
1589 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1592 len - bulk, gctx->ctr))
1596 #if defined(AES_GCM_ASM2)
1597 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1598 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1601 bulk = AES_gcm_decrypt(in, out, len,
1603 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1604 gctx->gcm.len.u[1] += bulk;
1607 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1608 in + bulk, out + bulk, len - bulk))
1612 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1613 EVP_GCM_TLS_TAG_LEN);
1614 /* If tag mismatch wipe buffer */
1615 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len,
1616 EVP_GCM_TLS_TAG_LEN)) {
1617 OPENSSL_cleanse(out, len);
1625 gctx->tls_aad_len = -1;
1629 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1630 const unsigned char *in, size_t len)
1632 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1633 /* If not set up, return error */
1637 if (gctx->tls_aad_len >= 0)
1638 return aes_gcm_tls_cipher(ctx, out, in, len);
1644 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1646 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
1649 #if defined(AES_GCM_ASM)
1650 if (len >= 32 && AES_GCM_ASM(gctx)) {
1651 size_t res = (16 - gctx->gcm.mres) % 16;
1653 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1656 bulk = AES_gcm_encrypt(in + res,
1657 out + res, len - res,
1658 gctx->gcm.key, gctx->gcm.Yi.c,
1660 gctx->gcm.len.u[1] += bulk;
1664 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1667 len - bulk, gctx->ctr))
1671 #if defined(AES_GCM_ASM2)
1672 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1673 size_t res = (16 - gctx->gcm.mres) % 16;
1675 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1678 bulk = AES_gcm_encrypt(in + res,
1679 out + res, len - res,
1680 gctx->gcm.key, gctx->gcm.Yi.c,
1682 gctx->gcm.len.u[1] += bulk;
1686 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1687 in + bulk, out + bulk, len - bulk))
1693 #if defined(AES_GCM_ASM)
1694 if (len >= 16 && AES_GCM_ASM(gctx)) {
1695 size_t res = (16 - gctx->gcm.mres) % 16;
1697 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1700 bulk = AES_gcm_decrypt(in + res,
1701 out + res, len - res,
1703 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1704 gctx->gcm.len.u[1] += bulk;
1708 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1711 len - bulk, gctx->ctr))
1715 #if defined(AES_GCM_ASM2)
1716 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1717 size_t res = (16 - gctx->gcm.mres) % 16;
1719 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1722 bulk = AES_gcm_decrypt(in + res,
1723 out + res, len - res,
1725 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1726 gctx->gcm.len.u[1] += bulk;
1730 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1731 in + bulk, out + bulk, len - bulk))
1737 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
1738 if (gctx->taglen < 0)
1740 if (CRYPTO_gcm128_finish(&gctx->gcm,
1741 EVP_CIPHER_CTX_buf_noconst(ctx),
1747 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16);
1749 /* Don't reuse the IV */
1756 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1757 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1758 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1759 | EVP_CIPH_CUSTOM_COPY)
1761 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1762 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1763 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1764 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1765 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1766 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1768 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1770 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
1771 if (type == EVP_CTRL_COPY) {
1772 EVP_CIPHER_CTX *out = ptr;
1773 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
1774 if (xctx->xts.key1) {
1775 if (xctx->xts.key1 != &xctx->ks1)
1777 xctx_out->xts.key1 = &xctx_out->ks1;
1779 if (xctx->xts.key2) {
1780 if (xctx->xts.key2 != &xctx->ks2)
1782 xctx_out->xts.key2 = &xctx_out->ks2;
1785 } else if (type != EVP_CTRL_INIT)
1787 /* key1 and key2 are used as an indicator both key and IV are set */
1788 xctx->xts.key1 = NULL;
1789 xctx->xts.key2 = NULL;
1793 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1794 const unsigned char *iv, int enc)
1796 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1803 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1805 xctx->stream = NULL;
1807 /* key_len is two AES keys */
1808 #ifdef HWAES_CAPABLE
1809 if (HWAES_CAPABLE) {
1811 HWAES_set_encrypt_key(key,
1812 EVP_CIPHER_CTX_key_length(ctx) * 4,
1814 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1815 # ifdef HWAES_xts_encrypt
1816 xctx->stream = HWAES_xts_encrypt;
1819 HWAES_set_decrypt_key(key,
1820 EVP_CIPHER_CTX_key_length(ctx) * 4,
1822 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1823 # ifdef HWAES_xts_decrypt
1824 xctx->stream = HWAES_xts_decrypt;
1828 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1829 EVP_CIPHER_CTX_key_length(ctx) * 4,
1831 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1833 xctx->xts.key1 = &xctx->ks1;
1837 #ifdef BSAES_CAPABLE
1839 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1842 #ifdef VPAES_CAPABLE
1843 if (VPAES_CAPABLE) {
1845 vpaes_set_encrypt_key(key,
1846 EVP_CIPHER_CTX_key_length(ctx) * 4,
1848 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1850 vpaes_set_decrypt_key(key,
1851 EVP_CIPHER_CTX_key_length(ctx) * 4,
1853 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1856 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1857 EVP_CIPHER_CTX_key_length(ctx) * 4,
1859 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1861 xctx->xts.key1 = &xctx->ks1;
1865 (void)0; /* terminate potentially open 'else' */
1868 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1870 xctx->xts.block1 = (block128_f) AES_encrypt;
1872 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1874 xctx->xts.block1 = (block128_f) AES_decrypt;
1877 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1878 EVP_CIPHER_CTX_key_length(ctx) * 4,
1880 xctx->xts.block2 = (block128_f) AES_encrypt;
1882 xctx->xts.key1 = &xctx->ks1;
1886 xctx->xts.key2 = &xctx->ks2;
1887 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
1893 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1894 const unsigned char *in, size_t len)
1896 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1897 if (!xctx->xts.key1 || !xctx->xts.key2)
1899 if (!out || !in || len < AES_BLOCK_SIZE)
1902 (*xctx->stream) (in, out, len,
1903 xctx->xts.key1, xctx->xts.key2,
1904 EVP_CIPHER_CTX_iv_noconst(ctx));
1905 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
1907 EVP_CIPHER_CTX_encrypting(ctx)))
1912 #define aes_xts_cleanup NULL
1914 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1915 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1916 | EVP_CIPH_CUSTOM_COPY)
1918 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1919 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1921 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1923 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
1932 cctx->tls_aad_len = -1;
1935 case EVP_CTRL_AEAD_TLS1_AAD:
1936 /* Save the AAD for later use */
1937 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1939 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1940 cctx->tls_aad_len = arg;
1943 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1944 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1945 /* Correct length for explicit IV */
1946 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1947 /* If decrypting correct for tag too */
1948 if (!EVP_CIPHER_CTX_encrypting(c))
1950 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1951 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1953 /* Extra padding: tag appended to record */
1956 case EVP_CTRL_CCM_SET_IV_FIXED:
1957 /* Sanity check length */
1958 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1960 /* Just copy to first part of IV */
1961 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
1964 case EVP_CTRL_AEAD_SET_IVLEN:
1966 case EVP_CTRL_CCM_SET_L:
1967 if (arg < 2 || arg > 8)
1972 case EVP_CTRL_AEAD_SET_TAG:
1973 if ((arg & 1) || arg < 4 || arg > 16)
1975 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
1979 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1984 case EVP_CTRL_AEAD_GET_TAG:
1985 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
1987 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1996 EVP_CIPHER_CTX *out = ptr;
1997 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
1998 if (cctx->ccm.key) {
1999 if (cctx->ccm.key != &cctx->ks)
2001 cctx_out->ccm.key = &cctx_out->ks;
2012 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2013 const unsigned char *iv, int enc)
2015 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2020 #ifdef HWAES_CAPABLE
2021 if (HWAES_CAPABLE) {
2022 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2025 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2026 &cctx->ks, (block128_f) HWAES_encrypt);
2032 #ifdef VPAES_CAPABLE
2033 if (VPAES_CAPABLE) {
2034 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2036 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2037 &cctx->ks, (block128_f) vpaes_encrypt);
2043 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2045 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2046 &cctx->ks, (block128_f) AES_encrypt);
2051 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
2057 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2058 const unsigned char *in, size_t len)
2060 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2061 CCM128_CONTEXT *ccm = &cctx->ccm;
2062 /* Encrypt/decrypt must be performed in place */
2063 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2065 /* If encrypting set explicit IV from sequence number (start of AAD) */
2066 if (EVP_CIPHER_CTX_encrypting(ctx))
2067 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
2068 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2069 /* Get rest of IV from explicit IV */
2070 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
2071 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2072 /* Correct length value */
2073 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2074 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
2078 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
2079 /* Fix buffer to point to payload */
2080 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2081 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2082 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2083 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2085 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2087 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2089 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2091 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2093 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2094 unsigned char tag[16];
2095 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2096 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2100 OPENSSL_cleanse(out, len);
2105 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2106 const unsigned char *in, size_t len)
2108 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2109 CCM128_CONTEXT *ccm = &cctx->ccm;
2110 /* If not set up, return error */
2114 if (cctx->tls_aad_len >= 0)
2115 return aes_ccm_tls_cipher(ctx, out, in, len);
2120 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
2124 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2130 /* If have AAD need message length */
2131 if (!cctx->len_set && len)
2133 CRYPTO_ccm128_aad(ccm, in, len);
2136 /* EVP_*Final() doesn't return any data */
2139 /* If not set length yet do it */
2140 if (!cctx->len_set) {
2141 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2146 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2147 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2149 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2155 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2157 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2158 unsigned char tag[16];
2159 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2160 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
2166 OPENSSL_cleanse(out, len);
2174 #define aes_ccm_cleanup NULL
2176 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2177 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2178 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2179 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2180 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2181 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2188 /* Indicates if IV has been set */
2192 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2193 const unsigned char *iv, int enc)
2195 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2199 if (EVP_CIPHER_CTX_encrypting(ctx))
2200 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2203 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2209 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
2210 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
2215 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2216 const unsigned char *in, size_t inlen)
2218 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2220 /* AES wrap with padding has IV length of 4, without padding 8 */
2221 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2222 /* No final operation so always return zero length */
2225 /* Input length must always be non-zero */
2228 /* If decrypting need at least 16 bytes and multiple of 8 */
2229 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
2231 /* If not padding input must be multiple of 8 */
2232 if (!pad && inlen & 0x7)
2235 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2236 /* If padding round up to multiple of 8 */
2238 inlen = (inlen + 7) / 8 * 8;
2243 * If not padding output will be exactly 8 bytes smaller than
2244 * input. If padding it will be at least 8 bytes smaller but we
2245 * don't know how much.
2251 if (EVP_CIPHER_CTX_encrypting(ctx))
2252 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2254 (block128_f) AES_encrypt);
2256 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2258 (block128_f) AES_decrypt);
2260 if (EVP_CIPHER_CTX_encrypting(ctx))
2261 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2262 out, in, inlen, (block128_f) AES_encrypt);
2264 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2265 out, in, inlen, (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
2283 const EVP_CIPHER *EVP_aes_128_wrap(void)
2285 return &aes_128_wrap;
2288 static const EVP_CIPHER aes_192_wrap = {
2290 8, 24, 8, WRAP_FLAGS,
2291 aes_wrap_init_key, aes_wrap_cipher,
2293 sizeof(EVP_AES_WRAP_CTX),
2294 NULL, NULL, NULL, NULL
2297 const EVP_CIPHER *EVP_aes_192_wrap(void)
2299 return &aes_192_wrap;
2302 static const EVP_CIPHER aes_256_wrap = {
2304 8, 32, 8, WRAP_FLAGS,
2305 aes_wrap_init_key, aes_wrap_cipher,
2307 sizeof(EVP_AES_WRAP_CTX),
2308 NULL, NULL, NULL, NULL
2311 const EVP_CIPHER *EVP_aes_256_wrap(void)
2313 return &aes_256_wrap;
2316 static const EVP_CIPHER aes_128_wrap_pad = {
2317 NID_id_aes128_wrap_pad,
2318 8, 16, 4, WRAP_FLAGS,
2319 aes_wrap_init_key, aes_wrap_cipher,
2321 sizeof(EVP_AES_WRAP_CTX),
2322 NULL, NULL, NULL, NULL
2325 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2327 return &aes_128_wrap_pad;
2330 static const EVP_CIPHER aes_192_wrap_pad = {
2331 NID_id_aes192_wrap_pad,
2332 8, 24, 4, WRAP_FLAGS,
2333 aes_wrap_init_key, aes_wrap_cipher,
2335 sizeof(EVP_AES_WRAP_CTX),
2336 NULL, NULL, NULL, NULL
2339 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2341 return &aes_192_wrap_pad;
2344 static const EVP_CIPHER aes_256_wrap_pad = {
2345 NID_id_aes256_wrap_pad,
2346 8, 32, 4, WRAP_FLAGS,
2347 aes_wrap_init_key, aes_wrap_cipher,
2349 sizeof(EVP_AES_WRAP_CTX),
2350 NULL, NULL, NULL, NULL
2353 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2355 return &aes_256_wrap_pad;
2358 #ifndef OPENSSL_NO_OCB
2359 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2361 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2362 EVP_CIPHER_CTX *newc;
2363 EVP_AES_OCB_CTX *new_octx;
2369 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
2370 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
2372 octx->data_buf_len = 0;
2373 octx->aad_buf_len = 0;
2376 case EVP_CTRL_AEAD_SET_IVLEN:
2377 /* IV len must be 1 to 15 */
2378 if (arg <= 0 || arg > 15)
2384 case EVP_CTRL_AEAD_SET_TAG:
2386 /* Tag len must be 0 to 16 */
2387 if (arg < 0 || arg > 16)
2393 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
2395 memcpy(octx->tag, ptr, arg);
2398 case EVP_CTRL_AEAD_GET_TAG:
2399 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
2402 memcpy(ptr, octx->tag, arg);
2406 newc = (EVP_CIPHER_CTX *)ptr;
2407 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
2408 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2409 &new_octx->ksenc.ks,
2410 &new_octx->ksdec.ks);
2418 # ifdef HWAES_CAPABLE
2419 # ifdef HWAES_ocb_encrypt
2420 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
2421 size_t blocks, const void *key,
2422 size_t start_block_num,
2423 unsigned char offset_i[16],
2424 const unsigned char L_[][16],
2425 unsigned char checksum[16]);
2427 # define HWAES_ocb_encrypt NULL
2429 # ifdef HWAES_ocb_decrypt
2430 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
2431 size_t blocks, const void *key,
2432 size_t start_block_num,
2433 unsigned char offset_i[16],
2434 const unsigned char L_[][16],
2435 unsigned char checksum[16]);
2437 # define HWAES_ocb_decrypt NULL
2441 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2442 const unsigned char *iv, int enc)
2444 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2450 * We set both the encrypt and decrypt key here because decrypt
2451 * needs both. We could possibly optimise to remove setting the
2452 * decrypt for an encryption operation.
2454 # ifdef HWAES_CAPABLE
2455 if (HWAES_CAPABLE) {
2456 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2458 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2460 if (!CRYPTO_ocb128_init(&octx->ocb,
2461 &octx->ksenc.ks, &octx->ksdec.ks,
2462 (block128_f) HWAES_encrypt,
2463 (block128_f) HWAES_decrypt,
2464 enc ? HWAES_ocb_encrypt
2465 : HWAES_ocb_decrypt))
2470 # ifdef VPAES_CAPABLE
2471 if (VPAES_CAPABLE) {
2472 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2474 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2476 if (!CRYPTO_ocb128_init(&octx->ocb,
2477 &octx->ksenc.ks, &octx->ksdec.ks,
2478 (block128_f) vpaes_encrypt,
2479 (block128_f) vpaes_decrypt,
2485 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2487 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2489 if (!CRYPTO_ocb128_init(&octx->ocb,
2490 &octx->ksenc.ks, &octx->ksdec.ks,
2491 (block128_f) AES_encrypt,
2492 (block128_f) AES_decrypt,
2499 * If we have an iv we can set it directly, otherwise use saved IV.
2501 if (iv == NULL && octx->iv_set)
2504 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2511 /* If key set use IV, otherwise copy */
2513 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2515 memcpy(octx->iv, iv, octx->ivlen);
2521 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2522 const unsigned char *in, size_t len)
2526 int written_len = 0;
2527 size_t trailing_len;
2528 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2530 /* If IV or Key not set then return error */
2539 * Need to ensure we are only passing full blocks to low level OCB
2540 * routines. We do it here rather than in EVP_EncryptUpdate/
2541 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2542 * and those routines don't support that
2545 /* Are we dealing with AAD or normal data here? */
2547 buf = octx->aad_buf;
2548 buf_len = &(octx->aad_buf_len);
2550 buf = octx->data_buf;
2551 buf_len = &(octx->data_buf_len);
2555 * If we've got a partially filled buffer from a previous call then
2556 * use that data first
2559 unsigned int remaining;
2561 remaining = 16 - (*buf_len);
2562 if (remaining > len) {
2563 memcpy(buf + (*buf_len), in, len);
2567 memcpy(buf + (*buf_len), in, remaining);
2570 * If we get here we've filled the buffer, so process it
2575 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
2577 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2578 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
2581 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
2588 /* Do we have a partial block to handle at the end? */
2589 trailing_len = len % 16;
2592 * If we've got some full blocks to handle, then process these first
2594 if (len != trailing_len) {
2596 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2598 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2599 if (!CRYPTO_ocb128_encrypt
2600 (&octx->ocb, in, out, len - trailing_len))
2603 if (!CRYPTO_ocb128_decrypt
2604 (&octx->ocb, in, out, len - trailing_len))
2607 written_len += len - trailing_len;
2608 in += len - trailing_len;
2611 /* Handle any trailing partial block */
2613 memcpy(buf, in, trailing_len);
2614 *buf_len = trailing_len;
2620 * First of all empty the buffer of any partial block that we might
2621 * have been provided - both for data and AAD
2623 if (octx->data_buf_len) {
2624 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2625 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2626 octx->data_buf_len))
2629 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2630 octx->data_buf_len))
2633 written_len = octx->data_buf_len;
2634 octx->data_buf_len = 0;
2636 if (octx->aad_buf_len) {
2637 if (!CRYPTO_ocb128_aad
2638 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2640 octx->aad_buf_len = 0;
2642 /* If decrypting then verify */
2643 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
2644 if (octx->taglen < 0)
2646 if (CRYPTO_ocb128_finish(&octx->ocb,
2647 octx->tag, octx->taglen) != 0)
2652 /* If encrypting then just get the tag */
2653 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2655 /* Don't reuse the IV */
2661 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2663 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2664 CRYPTO_ocb128_cleanup(&octx->ocb);
2668 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
2669 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2670 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
2671 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2672 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
2673 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2674 #endif /* OPENSSL_NO_OCB */