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>
38 } ks; /* AES key schedule to use */
39 int key_set; /* Set if key initialised */
40 int iv_set; /* Set if an iv is set */
42 unsigned char *iv; /* Temporary IV store */
43 int ivlen; /* IV length */
45 int iv_gen; /* It is OK to generate IVs */
46 int tls_aad_len; /* TLS AAD length */
54 } ks1, ks2; /* AES key schedules to use */
56 void (*stream) (const unsigned char *in,
57 unsigned char *out, size_t length,
58 const AES_KEY *key1, const AES_KEY *key2,
59 const unsigned char iv[16]);
66 } ks; /* AES key schedule to use */
67 int key_set; /* Set if key initialised */
68 int iv_set; /* Set if an iv is set */
69 int tag_set; /* Set if tag is valid */
70 int len_set; /* Set if message length set */
71 int L, M; /* L and M parameters from RFC3610 */
72 int tls_aad_len; /* TLS AAD length */
77 #ifndef OPENSSL_NO_OCB
82 } ksenc; /* AES key schedule to use for encryption */
86 } ksdec; /* AES key schedule to use for decryption */
87 int key_set; /* Set if key initialised */
88 int iv_set; /* Set if an iv is set */
90 unsigned char *iv; /* Temporary IV store */
91 unsigned char tag[16];
92 unsigned char data_buf[16]; /* Store partial data blocks */
93 unsigned char aad_buf[16]; /* Store partial AAD blocks */
96 int ivlen; /* IV length */
101 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
104 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
106 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
109 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
111 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
114 void vpaes_cbc_encrypt(const unsigned char *in,
117 const AES_KEY *key, unsigned char *ivec, int enc);
120 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
121 size_t length, const AES_KEY *key,
122 unsigned char ivec[16], int enc);
123 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
124 size_t len, const AES_KEY *key,
125 const unsigned char ivec[16]);
126 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
127 size_t len, const AES_KEY *key1,
128 const AES_KEY *key2, const unsigned char iv[16]);
129 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
130 size_t len, const AES_KEY *key1,
131 const AES_KEY *key2, const unsigned char iv[16]);
134 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
135 size_t blocks, const AES_KEY *key,
136 const unsigned char ivec[AES_BLOCK_SIZE]);
139 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
140 const AES_KEY *key1, const AES_KEY *key2,
141 const unsigned char iv[16]);
142 void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
143 const AES_KEY *key1, const AES_KEY *key2,
144 const unsigned char iv[16]);
147 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
148 # include "ppc_arch.h"
150 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
152 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
153 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
154 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
155 # define HWAES_encrypt aes_p8_encrypt
156 # define HWAES_decrypt aes_p8_decrypt
157 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
158 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
159 # define HWAES_xts_encrypt aes_p8_xts_encrypt
160 # define HWAES_xts_decrypt aes_p8_xts_decrypt
163 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
164 ((defined(__i386) || defined(__i386__) || \
165 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
166 defined(__x86_64) || defined(__x86_64__) || \
167 defined(_M_AMD64) || defined(_M_X64) )
169 extern unsigned int OPENSSL_ia32cap_P[];
172 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
175 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
180 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
182 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
184 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
187 void aesni_encrypt(const unsigned char *in, unsigned char *out,
189 void aesni_decrypt(const unsigned char *in, unsigned char *out,
192 void aesni_ecb_encrypt(const unsigned char *in,
194 size_t length, const AES_KEY *key, int enc);
195 void aesni_cbc_encrypt(const unsigned char *in,
198 const AES_KEY *key, unsigned char *ivec, int enc);
200 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
203 const void *key, const unsigned char *ivec);
205 void aesni_xts_encrypt(const unsigned char *in,
208 const AES_KEY *key1, const AES_KEY *key2,
209 const unsigned char iv[16]);
211 void aesni_xts_decrypt(const unsigned char *in,
214 const AES_KEY *key1, const AES_KEY *key2,
215 const unsigned char iv[16]);
217 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
221 const unsigned char ivec[16],
222 unsigned char cmac[16]);
224 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
228 const unsigned char ivec[16],
229 unsigned char cmac[16]);
231 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
232 size_t aesni_gcm_encrypt(const unsigned char *in,
235 const void *key, unsigned char ivec[16], u64 *Xi);
236 # define AES_gcm_encrypt aesni_gcm_encrypt
237 size_t aesni_gcm_decrypt(const unsigned char *in,
240 const void *key, unsigned char ivec[16], u64 *Xi);
241 # define AES_gcm_decrypt aesni_gcm_decrypt
242 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
244 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
245 gctx->gcm.ghash==gcm_ghash_avx)
246 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
247 gctx->gcm.ghash==gcm_ghash_avx)
248 # undef AES_GCM_ASM2 /* minor size optimization */
251 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
252 const unsigned char *iv, int enc)
255 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
257 mode = EVP_CIPHER_CTX_mode(ctx);
258 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
260 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
262 dat->block = (block128_f) aesni_decrypt;
263 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
264 (cbc128_f) aesni_cbc_encrypt : NULL;
266 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
268 dat->block = (block128_f) aesni_encrypt;
269 if (mode == EVP_CIPH_CBC_MODE)
270 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
271 else if (mode == EVP_CIPH_CTR_MODE)
272 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
274 dat->stream.cbc = NULL;
278 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
285 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
286 const unsigned char *in, size_t len)
288 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
289 EVP_CIPHER_CTX_iv_noconst(ctx),
290 EVP_CIPHER_CTX_encrypting(ctx));
295 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
296 const unsigned char *in, size_t len)
298 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
303 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
304 EVP_CIPHER_CTX_encrypting(ctx));
309 # define aesni_ofb_cipher aes_ofb_cipher
310 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
311 const unsigned char *in, size_t len);
313 # define aesni_cfb_cipher aes_cfb_cipher
314 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
315 const unsigned char *in, size_t len);
317 # define aesni_cfb8_cipher aes_cfb8_cipher
318 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
319 const unsigned char *in, size_t len);
321 # define aesni_cfb1_cipher aes_cfb1_cipher
322 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
323 const unsigned char *in, size_t len);
325 # define aesni_ctr_cipher aes_ctr_cipher
326 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
327 const unsigned char *in, size_t len);
329 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
330 const unsigned char *iv, int enc)
332 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
336 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
338 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
339 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
341 * If we have an iv can set it directly, otherwise use saved IV.
343 if (iv == NULL && gctx->iv_set)
346 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
351 /* If key set use IV, otherwise copy */
353 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
355 memcpy(gctx->iv, iv, gctx->ivlen);
362 # define aesni_gcm_cipher aes_gcm_cipher
363 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
364 const unsigned char *in, size_t len);
366 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
367 const unsigned char *iv, int enc)
369 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
374 /* key_len is two AES keys */
376 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
378 xctx->xts.block1 = (block128_f) aesni_encrypt;
379 xctx->stream = aesni_xts_encrypt;
381 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
383 xctx->xts.block1 = (block128_f) aesni_decrypt;
384 xctx->stream = aesni_xts_decrypt;
387 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
388 EVP_CIPHER_CTX_key_length(ctx) * 4,
390 xctx->xts.block2 = (block128_f) aesni_encrypt;
392 xctx->xts.key1 = &xctx->ks1;
396 xctx->xts.key2 = &xctx->ks2;
397 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
403 # define aesni_xts_cipher aes_xts_cipher
404 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
405 const unsigned char *in, size_t len);
407 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
408 const unsigned char *iv, int enc)
410 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
414 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
416 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
417 &cctx->ks, (block128_f) aesni_encrypt);
418 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
419 (ccm128_f) aesni_ccm64_decrypt_blocks;
423 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
429 # define aesni_ccm_cipher aes_ccm_cipher
430 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
431 const unsigned char *in, size_t len);
433 # ifndef OPENSSL_NO_OCB
434 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
435 size_t blocks, const void *key,
436 size_t start_block_num,
437 unsigned char offset_i[16],
438 const unsigned char L_[][16],
439 unsigned char checksum[16]);
440 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
441 size_t blocks, const void *key,
442 size_t start_block_num,
443 unsigned char offset_i[16],
444 const unsigned char L_[][16],
445 unsigned char checksum[16]);
447 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
448 const unsigned char *iv, int enc)
450 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
456 * We set both the encrypt and decrypt key here because decrypt
457 * needs both. We could possibly optimise to remove setting the
458 * decrypt for an encryption operation.
460 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
462 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
464 if (!CRYPTO_ocb128_init(&octx->ocb,
465 &octx->ksenc.ks, &octx->ksdec.ks,
466 (block128_f) aesni_encrypt,
467 (block128_f) aesni_decrypt,
468 enc ? aesni_ocb_encrypt
469 : aesni_ocb_decrypt))
475 * If we have an iv we can set it directly, otherwise use saved IV.
477 if (iv == NULL && octx->iv_set)
480 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
487 /* If key set use IV, otherwise copy */
489 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
491 memcpy(octx->iv, iv, octx->ivlen);
497 # define aesni_ocb_cipher aes_ocb_cipher
498 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
499 const unsigned char *in, size_t len);
500 # endif /* OPENSSL_NO_OCB */
502 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
503 static const EVP_CIPHER aesni_##keylen##_##mode = { \
504 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
505 flags|EVP_CIPH_##MODE##_MODE, \
507 aesni_##mode##_cipher, \
509 sizeof(EVP_AES_KEY), \
510 NULL,NULL,NULL,NULL }; \
511 static const EVP_CIPHER aes_##keylen##_##mode = { \
512 nid##_##keylen##_##nmode,blocksize, \
514 flags|EVP_CIPH_##MODE##_MODE, \
516 aes_##mode##_cipher, \
518 sizeof(EVP_AES_KEY), \
519 NULL,NULL,NULL,NULL }; \
520 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
521 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
523 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
524 static const EVP_CIPHER aesni_##keylen##_##mode = { \
525 nid##_##keylen##_##mode,blocksize, \
526 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
527 flags|EVP_CIPH_##MODE##_MODE, \
528 aesni_##mode##_init_key, \
529 aesni_##mode##_cipher, \
530 aes_##mode##_cleanup, \
531 sizeof(EVP_AES_##MODE##_CTX), \
532 NULL,NULL,aes_##mode##_ctrl,NULL }; \
533 static const EVP_CIPHER aes_##keylen##_##mode = { \
534 nid##_##keylen##_##mode,blocksize, \
535 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
536 flags|EVP_CIPH_##MODE##_MODE, \
537 aes_##mode##_init_key, \
538 aes_##mode##_cipher, \
539 aes_##mode##_cleanup, \
540 sizeof(EVP_AES_##MODE##_CTX), \
541 NULL,NULL,aes_##mode##_ctrl,NULL }; \
542 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
543 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
545 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
547 # include "sparc_arch.h"
549 extern unsigned int OPENSSL_sparcv9cap_P[];
552 * Initial Fujitsu SPARC64 X support
554 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
555 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
556 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
557 # define HWAES_encrypt aes_fx_encrypt
558 # define HWAES_decrypt aes_fx_decrypt
559 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
560 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
562 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
564 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
565 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
566 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
568 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
571 * Key-length specific subroutines were chosen for following reason.
572 * Each SPARC T4 core can execute up to 8 threads which share core's
573 * resources. Loading as much key material to registers allows to
574 * minimize references to shared memory interface, as well as amount
575 * of instructions in inner loops [much needed on T4]. But then having
576 * non-key-length specific routines would require conditional branches
577 * either in inner loops or on subroutines' entries. Former is hardly
578 * acceptable, while latter means code size increase to size occupied
579 * by multiple key-length specific subroutines, so why fight?
581 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
582 size_t len, const AES_KEY *key,
583 unsigned char *ivec);
584 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
585 size_t len, const AES_KEY *key,
586 unsigned char *ivec);
587 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
588 size_t len, const AES_KEY *key,
589 unsigned char *ivec);
590 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
591 size_t len, const AES_KEY *key,
592 unsigned char *ivec);
593 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
594 size_t len, const AES_KEY *key,
595 unsigned char *ivec);
596 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
597 size_t len, const AES_KEY *key,
598 unsigned char *ivec);
599 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
600 size_t blocks, const AES_KEY *key,
601 unsigned char *ivec);
602 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
603 size_t blocks, const AES_KEY *key,
604 unsigned char *ivec);
605 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
606 size_t blocks, const AES_KEY *key,
607 unsigned char *ivec);
608 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
609 size_t blocks, const AES_KEY *key1,
610 const AES_KEY *key2, const unsigned char *ivec);
611 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
612 size_t blocks, const AES_KEY *key1,
613 const AES_KEY *key2, const unsigned char *ivec);
614 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
615 size_t blocks, const AES_KEY *key1,
616 const AES_KEY *key2, const unsigned char *ivec);
617 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
618 size_t blocks, const AES_KEY *key1,
619 const AES_KEY *key2, const unsigned char *ivec);
621 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
622 const unsigned char *iv, int enc)
625 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
627 mode = EVP_CIPHER_CTX_mode(ctx);
628 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
629 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
632 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
633 dat->block = (block128_f) aes_t4_decrypt;
636 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
637 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
640 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
641 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
644 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
645 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
652 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
653 dat->block = (block128_f) aes_t4_encrypt;
656 if (mode == EVP_CIPH_CBC_MODE)
657 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
658 else if (mode == EVP_CIPH_CTR_MODE)
659 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
661 dat->stream.cbc = NULL;
664 if (mode == EVP_CIPH_CBC_MODE)
665 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
666 else if (mode == EVP_CIPH_CTR_MODE)
667 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
669 dat->stream.cbc = NULL;
672 if (mode == EVP_CIPH_CBC_MODE)
673 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
674 else if (mode == EVP_CIPH_CTR_MODE)
675 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
677 dat->stream.cbc = NULL;
685 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
692 # define aes_t4_cbc_cipher aes_cbc_cipher
693 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
694 const unsigned char *in, size_t len);
696 # define aes_t4_ecb_cipher aes_ecb_cipher
697 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
698 const unsigned char *in, size_t len);
700 # define aes_t4_ofb_cipher aes_ofb_cipher
701 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
702 const unsigned char *in, size_t len);
704 # define aes_t4_cfb_cipher aes_cfb_cipher
705 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
706 const unsigned char *in, size_t len);
708 # define aes_t4_cfb8_cipher aes_cfb8_cipher
709 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
710 const unsigned char *in, size_t len);
712 # define aes_t4_cfb1_cipher aes_cfb1_cipher
713 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
714 const unsigned char *in, size_t len);
716 # define aes_t4_ctr_cipher aes_ctr_cipher
717 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
718 const unsigned char *in, size_t len);
720 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
721 const unsigned char *iv, int enc)
723 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
727 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
728 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
729 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
730 (block128_f) aes_t4_encrypt);
733 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
736 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
739 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
745 * If we have an iv can set it directly, otherwise use saved IV.
747 if (iv == NULL && gctx->iv_set)
750 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
755 /* If key set use IV, otherwise copy */
757 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
759 memcpy(gctx->iv, iv, gctx->ivlen);
766 # define aes_t4_gcm_cipher aes_gcm_cipher
767 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
768 const unsigned char *in, size_t len);
770 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
771 const unsigned char *iv, int enc)
773 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
778 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
780 /* key_len is two AES keys */
782 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
783 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
786 xctx->stream = aes128_t4_xts_encrypt;
789 xctx->stream = aes256_t4_xts_encrypt;
795 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
797 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
800 xctx->stream = aes128_t4_xts_decrypt;
803 xctx->stream = aes256_t4_xts_decrypt;
810 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
811 EVP_CIPHER_CTX_key_length(ctx) * 4,
813 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
815 xctx->xts.key1 = &xctx->ks1;
819 xctx->xts.key2 = &xctx->ks2;
820 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
826 # define aes_t4_xts_cipher aes_xts_cipher
827 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
828 const unsigned char *in, size_t len);
830 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
831 const unsigned char *iv, int enc)
833 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
837 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
838 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
839 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
840 &cctx->ks, (block128_f) aes_t4_encrypt);
845 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
851 # define aes_t4_ccm_cipher aes_ccm_cipher
852 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
853 const unsigned char *in, size_t len);
855 # ifndef OPENSSL_NO_OCB
856 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
857 const unsigned char *iv, int enc)
859 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
865 * We set both the encrypt and decrypt key here because decrypt
866 * needs both. We could possibly optimise to remove setting the
867 * decrypt for an encryption operation.
869 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
871 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
873 if (!CRYPTO_ocb128_init(&octx->ocb,
874 &octx->ksenc.ks, &octx->ksdec.ks,
875 (block128_f) aes_t4_encrypt,
876 (block128_f) aes_t4_decrypt,
883 * If we have an iv we can set it directly, otherwise use saved IV.
885 if (iv == NULL && octx->iv_set)
888 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
895 /* If key set use IV, otherwise copy */
897 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
899 memcpy(octx->iv, iv, octx->ivlen);
905 # define aes_t4_ocb_cipher aes_ocb_cipher
906 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
907 const unsigned char *in, size_t len);
908 # endif /* OPENSSL_NO_OCB */
910 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
911 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
912 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
913 flags|EVP_CIPH_##MODE##_MODE, \
915 aes_t4_##mode##_cipher, \
917 sizeof(EVP_AES_KEY), \
918 NULL,NULL,NULL,NULL }; \
919 static const EVP_CIPHER aes_##keylen##_##mode = { \
920 nid##_##keylen##_##nmode,blocksize, \
922 flags|EVP_CIPH_##MODE##_MODE, \
924 aes_##mode##_cipher, \
926 sizeof(EVP_AES_KEY), \
927 NULL,NULL,NULL,NULL }; \
928 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
929 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
931 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
932 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
933 nid##_##keylen##_##mode,blocksize, \
934 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
935 flags|EVP_CIPH_##MODE##_MODE, \
936 aes_t4_##mode##_init_key, \
937 aes_t4_##mode##_cipher, \
938 aes_##mode##_cleanup, \
939 sizeof(EVP_AES_##MODE##_CTX), \
940 NULL,NULL,aes_##mode##_ctrl,NULL }; \
941 static const EVP_CIPHER aes_##keylen##_##mode = { \
942 nid##_##keylen##_##mode,blocksize, \
943 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
944 flags|EVP_CIPH_##MODE##_MODE, \
945 aes_##mode##_init_key, \
946 aes_##mode##_cipher, \
947 aes_##mode##_cleanup, \
948 sizeof(EVP_AES_##MODE##_CTX), \
949 NULL,NULL,aes_##mode##_ctrl,NULL }; \
950 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
951 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
955 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
956 static const EVP_CIPHER aes_##keylen##_##mode = { \
957 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
958 flags|EVP_CIPH_##MODE##_MODE, \
960 aes_##mode##_cipher, \
962 sizeof(EVP_AES_KEY), \
963 NULL,NULL,NULL,NULL }; \
964 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
965 { return &aes_##keylen##_##mode; }
967 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
968 static const EVP_CIPHER aes_##keylen##_##mode = { \
969 nid##_##keylen##_##mode,blocksize, \
970 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
971 flags|EVP_CIPH_##MODE##_MODE, \
972 aes_##mode##_init_key, \
973 aes_##mode##_cipher, \
974 aes_##mode##_cleanup, \
975 sizeof(EVP_AES_##MODE##_CTX), \
976 NULL,NULL,aes_##mode##_ctrl,NULL }; \
977 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
978 { return &aes_##keylen##_##mode; }
982 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
983 # include "arm_arch.h"
984 # if __ARM_MAX_ARCH__>=7
985 # if defined(BSAES_ASM)
986 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
988 # if defined(VPAES_ASM)
989 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
991 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
992 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
993 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
994 # define HWAES_encrypt aes_v8_encrypt
995 # define HWAES_decrypt aes_v8_decrypt
996 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
997 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1001 #if defined(HWAES_CAPABLE)
1002 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1004 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1006 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1007 const AES_KEY *key);
1008 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1009 const AES_KEY *key);
1010 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1011 size_t length, const AES_KEY *key,
1012 unsigned char *ivec, const int enc);
1013 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1014 size_t len, const AES_KEY *key,
1015 const unsigned char ivec[16]);
1016 void HWAES_xts_encrypt(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]);
1019 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
1020 size_t len, const AES_KEY *key1,
1021 const AES_KEY *key2, const unsigned char iv[16]);
1024 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1025 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1026 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1027 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1028 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1029 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1030 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1031 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1033 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1034 const unsigned char *iv, int enc)
1037 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1039 mode = EVP_CIPHER_CTX_mode(ctx);
1040 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1042 #ifdef HWAES_CAPABLE
1043 if (HWAES_CAPABLE) {
1044 ret = HWAES_set_decrypt_key(key,
1045 EVP_CIPHER_CTX_key_length(ctx) * 8,
1047 dat->block = (block128_f) HWAES_decrypt;
1048 dat->stream.cbc = NULL;
1049 # ifdef HWAES_cbc_encrypt
1050 if (mode == EVP_CIPH_CBC_MODE)
1051 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1055 #ifdef BSAES_CAPABLE
1056 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1057 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1059 dat->block = (block128_f) AES_decrypt;
1060 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1063 #ifdef VPAES_CAPABLE
1064 if (VPAES_CAPABLE) {
1065 ret = vpaes_set_decrypt_key(key,
1066 EVP_CIPHER_CTX_key_length(ctx) * 8,
1068 dat->block = (block128_f) vpaes_decrypt;
1069 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1070 (cbc128_f) vpaes_cbc_encrypt : NULL;
1074 ret = AES_set_decrypt_key(key,
1075 EVP_CIPHER_CTX_key_length(ctx) * 8,
1077 dat->block = (block128_f) AES_decrypt;
1078 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1079 (cbc128_f) AES_cbc_encrypt : NULL;
1082 #ifdef HWAES_CAPABLE
1083 if (HWAES_CAPABLE) {
1084 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1086 dat->block = (block128_f) HWAES_encrypt;
1087 dat->stream.cbc = NULL;
1088 # ifdef HWAES_cbc_encrypt
1089 if (mode == EVP_CIPH_CBC_MODE)
1090 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1093 # ifdef HWAES_ctr32_encrypt_blocks
1094 if (mode == EVP_CIPH_CTR_MODE)
1095 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1098 (void)0; /* terminate potentially open 'else' */
1101 #ifdef BSAES_CAPABLE
1102 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1103 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1105 dat->block = (block128_f) AES_encrypt;
1106 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1109 #ifdef VPAES_CAPABLE
1110 if (VPAES_CAPABLE) {
1111 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1113 dat->block = (block128_f) vpaes_encrypt;
1114 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1115 (cbc128_f) vpaes_cbc_encrypt : NULL;
1119 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1121 dat->block = (block128_f) AES_encrypt;
1122 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1123 (cbc128_f) AES_cbc_encrypt : NULL;
1125 if (mode == EVP_CIPH_CTR_MODE)
1126 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1131 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1138 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1139 const unsigned char *in, size_t len)
1141 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1143 if (dat->stream.cbc)
1144 (*dat->stream.cbc) (in, out, len, &dat->ks,
1145 EVP_CIPHER_CTX_iv_noconst(ctx),
1146 EVP_CIPHER_CTX_encrypting(ctx));
1147 else if (EVP_CIPHER_CTX_encrypting(ctx))
1148 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
1149 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1151 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
1152 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1157 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1158 const unsigned char *in, size_t len)
1160 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
1162 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1167 for (i = 0, len -= bl; i <= len; i += bl)
1168 (*dat->block) (in + i, out + i, &dat->ks);
1173 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1174 const unsigned char *in, size_t len)
1176 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1178 int num = EVP_CIPHER_CTX_num(ctx);
1179 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1180 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
1181 EVP_CIPHER_CTX_set_num(ctx, num);
1185 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1186 const unsigned char *in, size_t len)
1188 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1190 int num = EVP_CIPHER_CTX_num(ctx);
1191 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1192 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1193 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1194 EVP_CIPHER_CTX_set_num(ctx, num);
1198 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1199 const unsigned char *in, size_t len)
1201 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1203 int num = EVP_CIPHER_CTX_num(ctx);
1204 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1205 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1206 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1207 EVP_CIPHER_CTX_set_num(ctx, num);
1211 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1212 const unsigned char *in, size_t len)
1214 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1216 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
1217 int num = EVP_CIPHER_CTX_num(ctx);
1218 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1219 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1220 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1221 EVP_CIPHER_CTX_set_num(ctx, num);
1225 while (len >= MAXBITCHUNK) {
1226 int num = EVP_CIPHER_CTX_num(ctx);
1227 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1228 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1229 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1230 EVP_CIPHER_CTX_set_num(ctx, num);
1234 int num = EVP_CIPHER_CTX_num(ctx);
1235 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1236 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1237 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1238 EVP_CIPHER_CTX_set_num(ctx, num);
1244 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1245 const unsigned char *in, size_t len)
1247 unsigned int num = EVP_CIPHER_CTX_num(ctx);
1248 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1250 if (dat->stream.ctr)
1251 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1252 EVP_CIPHER_CTX_iv_noconst(ctx),
1253 EVP_CIPHER_CTX_buf_noconst(ctx),
1254 &num, dat->stream.ctr);
1256 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1257 EVP_CIPHER_CTX_iv_noconst(ctx),
1258 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
1260 EVP_CIPHER_CTX_set_num(ctx, num);
1264 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1265 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1266 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1268 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1270 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1271 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1272 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1273 OPENSSL_free(gctx->iv);
1277 /* increment counter (64-bit int) by 1 */
1278 static void ctr64_inc(unsigned char *counter)
1293 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1295 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1300 gctx->ivlen = EVP_CIPHER_CTX_iv_length(c);
1301 gctx->iv = EVP_CIPHER_CTX_iv_noconst(c);
1304 gctx->tls_aad_len = -1;
1307 case EVP_CTRL_AEAD_SET_IVLEN:
1310 /* Allocate memory for IV if needed */
1311 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1312 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1313 OPENSSL_free(gctx->iv);
1314 gctx->iv = OPENSSL_malloc(arg);
1315 if (gctx->iv == NULL)
1321 case EVP_CTRL_AEAD_SET_TAG:
1322 if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c))
1324 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1328 case EVP_CTRL_AEAD_GET_TAG:
1329 if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c)
1330 || gctx->taglen < 0)
1332 memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg);
1335 case EVP_CTRL_GCM_SET_IV_FIXED:
1336 /* Special case: -1 length restores whole IV */
1338 memcpy(gctx->iv, ptr, gctx->ivlen);
1343 * Fixed field must be at least 4 bytes and invocation field at least
1346 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1349 memcpy(gctx->iv, ptr, arg);
1350 if (EVP_CIPHER_CTX_encrypting(c)
1351 && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1356 case EVP_CTRL_GCM_IV_GEN:
1357 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1359 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1360 if (arg <= 0 || arg > gctx->ivlen)
1362 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1364 * Invocation field will be at least 8 bytes in size and so no need
1365 * to check wrap around or increment more than last 8 bytes.
1367 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1371 case EVP_CTRL_GCM_SET_IV_INV:
1372 if (gctx->iv_gen == 0 || gctx->key_set == 0
1373 || EVP_CIPHER_CTX_encrypting(c))
1375 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1376 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1380 case EVP_CTRL_AEAD_TLS1_AAD:
1381 /* Save the AAD for later use */
1382 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1384 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1385 gctx->tls_aad_len = arg;
1388 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1389 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1390 /* Correct length for explicit IV */
1391 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1393 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1394 /* If decrypting correct for tag too */
1395 if (!EVP_CIPHER_CTX_encrypting(c)) {
1396 if (len < EVP_GCM_TLS_TAG_LEN)
1398 len -= EVP_GCM_TLS_TAG_LEN;
1400 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1401 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1403 /* Extra padding: tag appended to record */
1404 return EVP_GCM_TLS_TAG_LEN;
1408 EVP_CIPHER_CTX *out = ptr;
1409 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
1410 if (gctx->gcm.key) {
1411 if (gctx->gcm.key != &gctx->ks)
1413 gctx_out->gcm.key = &gctx_out->ks;
1415 if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c))
1416 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1418 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1419 if (gctx_out->iv == NULL)
1421 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1432 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1433 const unsigned char *iv, int enc)
1435 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1440 #ifdef HWAES_CAPABLE
1441 if (HWAES_CAPABLE) {
1442 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1444 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1445 (block128_f) HWAES_encrypt);
1446 # ifdef HWAES_ctr32_encrypt_blocks
1447 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1454 #ifdef BSAES_CAPABLE
1455 if (BSAES_CAPABLE) {
1456 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1458 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1459 (block128_f) AES_encrypt);
1460 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1464 #ifdef VPAES_CAPABLE
1465 if (VPAES_CAPABLE) {
1466 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1468 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1469 (block128_f) vpaes_encrypt);
1474 (void)0; /* terminate potentially open 'else' */
1476 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1478 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1479 (block128_f) AES_encrypt);
1481 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1488 * If we have an iv can set it directly, otherwise use saved IV.
1490 if (iv == NULL && gctx->iv_set)
1493 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1498 /* If key set use IV, otherwise copy */
1500 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1502 memcpy(gctx->iv, iv, gctx->ivlen);
1510 * Handle TLS GCM packet format. This consists of the last portion of the IV
1511 * followed by the payload and finally the tag. On encrypt generate IV,
1512 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1516 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1517 const unsigned char *in, size_t len)
1519 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1521 /* Encrypt/decrypt must be performed in place */
1523 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1526 * Set IV from start of buffer or generate IV and write to start of
1529 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ?
1530 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1531 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1534 if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1537 /* Fix buffer and length to point to payload */
1538 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1539 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1540 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1541 if (EVP_CIPHER_CTX_encrypting(ctx)) {
1542 /* Encrypt payload */
1545 #if defined(AES_GCM_ASM)
1546 if (len >= 32 && AES_GCM_ASM(gctx)) {
1547 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1550 bulk = AES_gcm_encrypt(in, out, len,
1552 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1553 gctx->gcm.len.u[1] += bulk;
1556 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1559 len - bulk, gctx->ctr))
1563 #if defined(AES_GCM_ASM2)
1564 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1565 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1568 bulk = AES_gcm_encrypt(in, out, len,
1570 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1571 gctx->gcm.len.u[1] += bulk;
1574 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1575 in + bulk, out + bulk, len - bulk))
1579 /* Finally write tag */
1580 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1581 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1586 #if defined(AES_GCM_ASM)
1587 if (len >= 16 && AES_GCM_ASM(gctx)) {
1588 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1591 bulk = AES_gcm_decrypt(in, out, len,
1593 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1594 gctx->gcm.len.u[1] += bulk;
1597 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1600 len - bulk, gctx->ctr))
1604 #if defined(AES_GCM_ASM2)
1605 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1606 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1609 bulk = AES_gcm_decrypt(in, out, len,
1611 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1612 gctx->gcm.len.u[1] += bulk;
1615 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1616 in + bulk, out + bulk, len - bulk))
1620 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1621 EVP_GCM_TLS_TAG_LEN);
1622 /* If tag mismatch wipe buffer */
1623 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len,
1624 EVP_GCM_TLS_TAG_LEN)) {
1625 OPENSSL_cleanse(out, len);
1633 gctx->tls_aad_len = -1;
1637 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1638 const unsigned char *in, size_t len)
1640 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1641 /* If not set up, return error */
1645 if (gctx->tls_aad_len >= 0)
1646 return aes_gcm_tls_cipher(ctx, out, in, len);
1652 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1654 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
1657 #if defined(AES_GCM_ASM)
1658 if (len >= 32 && AES_GCM_ASM(gctx)) {
1659 size_t res = (16 - gctx->gcm.mres) % 16;
1661 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1664 bulk = AES_gcm_encrypt(in + res,
1665 out + res, len - res,
1666 gctx->gcm.key, gctx->gcm.Yi.c,
1668 gctx->gcm.len.u[1] += bulk;
1672 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1675 len - bulk, gctx->ctr))
1679 #if defined(AES_GCM_ASM2)
1680 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1681 size_t res = (16 - gctx->gcm.mres) % 16;
1683 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1686 bulk = AES_gcm_encrypt(in + res,
1687 out + res, len - res,
1688 gctx->gcm.key, gctx->gcm.Yi.c,
1690 gctx->gcm.len.u[1] += bulk;
1694 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1695 in + bulk, out + bulk, len - bulk))
1701 #if defined(AES_GCM_ASM)
1702 if (len >= 16 && AES_GCM_ASM(gctx)) {
1703 size_t res = (16 - gctx->gcm.mres) % 16;
1705 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1708 bulk = AES_gcm_decrypt(in + res,
1709 out + res, len - res,
1711 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1712 gctx->gcm.len.u[1] += bulk;
1716 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1719 len - bulk, gctx->ctr))
1723 #if defined(AES_GCM_ASM2)
1724 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1725 size_t res = (16 - gctx->gcm.mres) % 16;
1727 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1730 bulk = AES_gcm_decrypt(in + res,
1731 out + res, len - res,
1733 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1734 gctx->gcm.len.u[1] += bulk;
1738 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1739 in + bulk, out + bulk, len - bulk))
1745 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
1746 if (gctx->taglen < 0)
1748 if (CRYPTO_gcm128_finish(&gctx->gcm,
1749 EVP_CIPHER_CTX_buf_noconst(ctx),
1755 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16);
1757 /* Don't reuse the IV */
1764 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1765 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1766 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1767 | EVP_CIPH_CUSTOM_COPY)
1769 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1770 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1771 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1772 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1773 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1774 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1776 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1778 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
1779 if (type == EVP_CTRL_COPY) {
1780 EVP_CIPHER_CTX *out = ptr;
1781 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
1782 if (xctx->xts.key1) {
1783 if (xctx->xts.key1 != &xctx->ks1)
1785 xctx_out->xts.key1 = &xctx_out->ks1;
1787 if (xctx->xts.key2) {
1788 if (xctx->xts.key2 != &xctx->ks2)
1790 xctx_out->xts.key2 = &xctx_out->ks2;
1793 } else if (type != EVP_CTRL_INIT)
1795 /* key1 and key2 are used as an indicator both key and IV are set */
1796 xctx->xts.key1 = NULL;
1797 xctx->xts.key2 = NULL;
1801 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1802 const unsigned char *iv, int enc)
1804 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1811 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1813 xctx->stream = NULL;
1815 /* key_len is two AES keys */
1816 #ifdef HWAES_CAPABLE
1817 if (HWAES_CAPABLE) {
1819 HWAES_set_encrypt_key(key,
1820 EVP_CIPHER_CTX_key_length(ctx) * 4,
1822 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1823 # ifdef HWAES_xts_encrypt
1824 xctx->stream = HWAES_xts_encrypt;
1827 HWAES_set_decrypt_key(key,
1828 EVP_CIPHER_CTX_key_length(ctx) * 4,
1830 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1831 # ifdef HWAES_xts_decrypt
1832 xctx->stream = HWAES_xts_decrypt;
1836 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1837 EVP_CIPHER_CTX_key_length(ctx) * 4,
1839 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1841 xctx->xts.key1 = &xctx->ks1;
1845 #ifdef BSAES_CAPABLE
1847 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1850 #ifdef VPAES_CAPABLE
1851 if (VPAES_CAPABLE) {
1853 vpaes_set_encrypt_key(key,
1854 EVP_CIPHER_CTX_key_length(ctx) * 4,
1856 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1858 vpaes_set_decrypt_key(key,
1859 EVP_CIPHER_CTX_key_length(ctx) * 4,
1861 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1864 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1865 EVP_CIPHER_CTX_key_length(ctx) * 4,
1867 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1869 xctx->xts.key1 = &xctx->ks1;
1873 (void)0; /* terminate potentially open 'else' */
1876 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1878 xctx->xts.block1 = (block128_f) AES_encrypt;
1880 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1882 xctx->xts.block1 = (block128_f) AES_decrypt;
1885 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1886 EVP_CIPHER_CTX_key_length(ctx) * 4,
1888 xctx->xts.block2 = (block128_f) AES_encrypt;
1890 xctx->xts.key1 = &xctx->ks1;
1894 xctx->xts.key2 = &xctx->ks2;
1895 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
1901 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1902 const unsigned char *in, size_t len)
1904 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1905 if (!xctx->xts.key1 || !xctx->xts.key2)
1907 if (!out || !in || len < AES_BLOCK_SIZE)
1910 (*xctx->stream) (in, out, len,
1911 xctx->xts.key1, xctx->xts.key2,
1912 EVP_CIPHER_CTX_iv_noconst(ctx));
1913 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
1915 EVP_CIPHER_CTX_encrypting(ctx)))
1920 #define aes_xts_cleanup NULL
1922 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1923 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1924 | EVP_CIPH_CUSTOM_COPY)
1926 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1927 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1929 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1931 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
1940 cctx->tls_aad_len = -1;
1943 case EVP_CTRL_AEAD_TLS1_AAD:
1944 /* Save the AAD for later use */
1945 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1947 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1948 cctx->tls_aad_len = arg;
1951 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1952 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1953 /* Correct length for explicit IV */
1954 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
1956 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1957 /* If decrypting correct for tag too */
1958 if (!EVP_CIPHER_CTX_encrypting(c)) {
1963 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1964 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1966 /* Extra padding: tag appended to record */
1969 case EVP_CTRL_CCM_SET_IV_FIXED:
1970 /* Sanity check length */
1971 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1973 /* Just copy to first part of IV */
1974 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
1977 case EVP_CTRL_AEAD_SET_IVLEN:
1979 case EVP_CTRL_CCM_SET_L:
1980 if (arg < 2 || arg > 8)
1985 case EVP_CTRL_AEAD_SET_TAG:
1986 if ((arg & 1) || arg < 4 || arg > 16)
1988 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
1992 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1997 case EVP_CTRL_AEAD_GET_TAG:
1998 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
2000 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
2009 EVP_CIPHER_CTX *out = ptr;
2010 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
2011 if (cctx->ccm.key) {
2012 if (cctx->ccm.key != &cctx->ks)
2014 cctx_out->ccm.key = &cctx_out->ks;
2025 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2026 const unsigned char *iv, int enc)
2028 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2033 #ifdef HWAES_CAPABLE
2034 if (HWAES_CAPABLE) {
2035 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2038 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2039 &cctx->ks, (block128_f) HWAES_encrypt);
2045 #ifdef VPAES_CAPABLE
2046 if (VPAES_CAPABLE) {
2047 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2049 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2050 &cctx->ks, (block128_f) vpaes_encrypt);
2056 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2058 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2059 &cctx->ks, (block128_f) AES_encrypt);
2064 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
2070 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2071 const unsigned char *in, size_t len)
2073 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2074 CCM128_CONTEXT *ccm = &cctx->ccm;
2075 /* Encrypt/decrypt must be performed in place */
2076 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2078 /* If encrypting set explicit IV from sequence number (start of AAD) */
2079 if (EVP_CIPHER_CTX_encrypting(ctx))
2080 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
2081 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2082 /* Get rest of IV from explicit IV */
2083 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
2084 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2085 /* Correct length value */
2086 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2087 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
2091 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
2092 /* Fix buffer to point to payload */
2093 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2094 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2095 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2096 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2098 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2100 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2102 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2104 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2106 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2107 unsigned char tag[16];
2108 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2109 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2113 OPENSSL_cleanse(out, len);
2118 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2119 const unsigned char *in, size_t len)
2121 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2122 CCM128_CONTEXT *ccm = &cctx->ccm;
2123 /* If not set up, return error */
2127 if (cctx->tls_aad_len >= 0)
2128 return aes_ccm_tls_cipher(ctx, out, in, len);
2133 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
2137 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2143 /* If have AAD need message length */
2144 if (!cctx->len_set && len)
2146 CRYPTO_ccm128_aad(ccm, in, len);
2149 /* EVP_*Final() doesn't return any data */
2152 /* If not set length yet do it */
2153 if (!cctx->len_set) {
2154 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2159 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2160 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2162 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2168 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2170 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2171 unsigned char tag[16];
2172 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2173 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
2179 OPENSSL_cleanse(out, len);
2187 #define aes_ccm_cleanup NULL
2189 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2190 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2191 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2192 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2193 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2194 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2201 /* Indicates if IV has been set */
2205 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2206 const unsigned char *iv, int enc)
2208 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2212 if (EVP_CIPHER_CTX_encrypting(ctx))
2213 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2216 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2222 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
2223 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
2228 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2229 const unsigned char *in, size_t inlen)
2231 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2233 /* AES wrap with padding has IV length of 4, without padding 8 */
2234 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2235 /* No final operation so always return zero length */
2238 /* Input length must always be non-zero */
2241 /* If decrypting need at least 16 bytes and multiple of 8 */
2242 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
2244 /* If not padding input must be multiple of 8 */
2245 if (!pad && inlen & 0x7)
2247 if (is_partially_overlapping(out, in, inlen)) {
2248 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
2252 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2253 /* If padding round up to multiple of 8 */
2255 inlen = (inlen + 7) / 8 * 8;
2260 * If not padding output will be exactly 8 bytes smaller than
2261 * input. If padding it will be at least 8 bytes smaller but we
2262 * don't know how much.
2268 if (EVP_CIPHER_CTX_encrypting(ctx))
2269 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2271 (block128_f) AES_encrypt);
2273 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2275 (block128_f) AES_decrypt);
2277 if (EVP_CIPHER_CTX_encrypting(ctx))
2278 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2279 out, in, inlen, (block128_f) AES_encrypt);
2281 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2282 out, in, inlen, (block128_f) AES_decrypt);
2284 return rv ? (int)rv : -1;
2287 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2288 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2289 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2291 static const EVP_CIPHER aes_128_wrap = {
2293 8, 16, 8, WRAP_FLAGS,
2294 aes_wrap_init_key, aes_wrap_cipher,
2296 sizeof(EVP_AES_WRAP_CTX),
2297 NULL, NULL, NULL, NULL
2300 const EVP_CIPHER *EVP_aes_128_wrap(void)
2302 return &aes_128_wrap;
2305 static const EVP_CIPHER aes_192_wrap = {
2307 8, 24, 8, WRAP_FLAGS,
2308 aes_wrap_init_key, aes_wrap_cipher,
2310 sizeof(EVP_AES_WRAP_CTX),
2311 NULL, NULL, NULL, NULL
2314 const EVP_CIPHER *EVP_aes_192_wrap(void)
2316 return &aes_192_wrap;
2319 static const EVP_CIPHER aes_256_wrap = {
2321 8, 32, 8, WRAP_FLAGS,
2322 aes_wrap_init_key, aes_wrap_cipher,
2324 sizeof(EVP_AES_WRAP_CTX),
2325 NULL, NULL, NULL, NULL
2328 const EVP_CIPHER *EVP_aes_256_wrap(void)
2330 return &aes_256_wrap;
2333 static const EVP_CIPHER aes_128_wrap_pad = {
2334 NID_id_aes128_wrap_pad,
2335 8, 16, 4, WRAP_FLAGS,
2336 aes_wrap_init_key, aes_wrap_cipher,
2338 sizeof(EVP_AES_WRAP_CTX),
2339 NULL, NULL, NULL, NULL
2342 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2344 return &aes_128_wrap_pad;
2347 static const EVP_CIPHER aes_192_wrap_pad = {
2348 NID_id_aes192_wrap_pad,
2349 8, 24, 4, WRAP_FLAGS,
2350 aes_wrap_init_key, aes_wrap_cipher,
2352 sizeof(EVP_AES_WRAP_CTX),
2353 NULL, NULL, NULL, NULL
2356 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2358 return &aes_192_wrap_pad;
2361 static const EVP_CIPHER aes_256_wrap_pad = {
2362 NID_id_aes256_wrap_pad,
2363 8, 32, 4, WRAP_FLAGS,
2364 aes_wrap_init_key, aes_wrap_cipher,
2366 sizeof(EVP_AES_WRAP_CTX),
2367 NULL, NULL, NULL, NULL
2370 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2372 return &aes_256_wrap_pad;
2375 #ifndef OPENSSL_NO_OCB
2376 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2378 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2379 EVP_CIPHER_CTX *newc;
2380 EVP_AES_OCB_CTX *new_octx;
2386 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
2387 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
2389 octx->data_buf_len = 0;
2390 octx->aad_buf_len = 0;
2393 case EVP_CTRL_AEAD_SET_IVLEN:
2394 /* IV len must be 1 to 15 */
2395 if (arg <= 0 || arg > 15)
2401 case EVP_CTRL_AEAD_SET_TAG:
2403 /* Tag len must be 0 to 16 */
2404 if (arg < 0 || arg > 16)
2410 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
2412 memcpy(octx->tag, ptr, arg);
2415 case EVP_CTRL_AEAD_GET_TAG:
2416 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
2419 memcpy(ptr, octx->tag, arg);
2423 newc = (EVP_CIPHER_CTX *)ptr;
2424 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
2425 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2426 &new_octx->ksenc.ks,
2427 &new_octx->ksdec.ks);
2435 # ifdef HWAES_CAPABLE
2436 # ifdef HWAES_ocb_encrypt
2437 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
2438 size_t blocks, const void *key,
2439 size_t start_block_num,
2440 unsigned char offset_i[16],
2441 const unsigned char L_[][16],
2442 unsigned char checksum[16]);
2444 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
2446 # ifdef HWAES_ocb_decrypt
2447 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
2448 size_t blocks, const void *key,
2449 size_t start_block_num,
2450 unsigned char offset_i[16],
2451 const unsigned char L_[][16],
2452 unsigned char checksum[16]);
2454 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
2458 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2459 const unsigned char *iv, int enc)
2461 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2467 * We set both the encrypt and decrypt key here because decrypt
2468 * needs both. We could possibly optimise to remove setting the
2469 * decrypt for an encryption operation.
2471 # ifdef HWAES_CAPABLE
2472 if (HWAES_CAPABLE) {
2473 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2475 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2477 if (!CRYPTO_ocb128_init(&octx->ocb,
2478 &octx->ksenc.ks, &octx->ksdec.ks,
2479 (block128_f) HWAES_encrypt,
2480 (block128_f) HWAES_decrypt,
2481 enc ? HWAES_ocb_encrypt
2482 : HWAES_ocb_decrypt))
2487 # ifdef VPAES_CAPABLE
2488 if (VPAES_CAPABLE) {
2489 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2491 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2493 if (!CRYPTO_ocb128_init(&octx->ocb,
2494 &octx->ksenc.ks, &octx->ksdec.ks,
2495 (block128_f) vpaes_encrypt,
2496 (block128_f) vpaes_decrypt,
2502 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2504 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2506 if (!CRYPTO_ocb128_init(&octx->ocb,
2507 &octx->ksenc.ks, &octx->ksdec.ks,
2508 (block128_f) AES_encrypt,
2509 (block128_f) AES_decrypt,
2516 * If we have an iv we can set it directly, otherwise use saved IV.
2518 if (iv == NULL && octx->iv_set)
2521 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2528 /* If key set use IV, otherwise copy */
2530 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2532 memcpy(octx->iv, iv, octx->ivlen);
2538 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2539 const unsigned char *in, size_t len)
2543 int written_len = 0;
2544 size_t trailing_len;
2545 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2547 /* If IV or Key not set then return error */
2556 * Need to ensure we are only passing full blocks to low level OCB
2557 * routines. We do it here rather than in EVP_EncryptUpdate/
2558 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2559 * and those routines don't support that
2562 /* Are we dealing with AAD or normal data here? */
2564 buf = octx->aad_buf;
2565 buf_len = &(octx->aad_buf_len);
2567 buf = octx->data_buf;
2568 buf_len = &(octx->data_buf_len);
2570 if (is_partially_overlapping(out + *buf_len, in, len)) {
2571 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
2577 * If we've got a partially filled buffer from a previous call then
2578 * use that data first
2581 unsigned int remaining;
2583 remaining = AES_BLOCK_SIZE - (*buf_len);
2584 if (remaining > len) {
2585 memcpy(buf + (*buf_len), in, len);
2589 memcpy(buf + (*buf_len), in, remaining);
2592 * If we get here we've filled the buffer, so process it
2597 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
2599 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2600 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
2604 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
2608 written_len = AES_BLOCK_SIZE;
2611 out += AES_BLOCK_SIZE;
2614 /* Do we have a partial block to handle at the end? */
2615 trailing_len = len % AES_BLOCK_SIZE;
2618 * If we've got some full blocks to handle, then process these first
2620 if (len != trailing_len) {
2622 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2624 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2625 if (!CRYPTO_ocb128_encrypt
2626 (&octx->ocb, in, out, len - trailing_len))
2629 if (!CRYPTO_ocb128_decrypt
2630 (&octx->ocb, in, out, len - trailing_len))
2633 written_len += len - trailing_len;
2634 in += len - trailing_len;
2637 /* Handle any trailing partial block */
2638 if (trailing_len > 0) {
2639 memcpy(buf, in, trailing_len);
2640 *buf_len = trailing_len;
2646 * First of all empty the buffer of any partial block that we might
2647 * have been provided - both for data and AAD
2649 if (octx->data_buf_len > 0) {
2650 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2651 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2652 octx->data_buf_len))
2655 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2656 octx->data_buf_len))
2659 written_len = octx->data_buf_len;
2660 octx->data_buf_len = 0;
2662 if (octx->aad_buf_len > 0) {
2663 if (!CRYPTO_ocb128_aad
2664 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2666 octx->aad_buf_len = 0;
2668 /* If decrypting then verify */
2669 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
2670 if (octx->taglen < 0)
2672 if (CRYPTO_ocb128_finish(&octx->ocb,
2673 octx->tag, octx->taglen) != 0)
2678 /* If encrypting then just get the tag */
2679 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2681 /* Don't reuse the IV */
2687 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2689 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2690 CRYPTO_ocb128_cleanup(&octx->ocb);
2694 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
2695 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2696 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
2697 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2698 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
2699 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2700 #endif /* OPENSSL_NO_OCB */