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 unsigned char *inp, unsigned 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 unsigned char *inp, unsigned 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
558 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
559 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
561 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
563 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
564 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
565 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
567 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
570 * Key-length specific subroutines were chosen for following reason.
571 * Each SPARC T4 core can execute up to 8 threads which share core's
572 * resources. Loading as much key material to registers allows to
573 * minimize references to shared memory interface, as well as amount
574 * of instructions in inner loops [much needed on T4]. But then having
575 * non-key-length specific routines would require conditional branches
576 * either in inner loops or on subroutines' entries. Former is hardly
577 * acceptable, while latter means code size increase to size occupied
578 * by multiple key-length specific subroutines, so why fight?
580 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
581 size_t len, const AES_KEY *key,
582 unsigned char *ivec);
583 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
584 size_t len, const AES_KEY *key,
585 unsigned char *ivec);
586 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
587 size_t len, const AES_KEY *key,
588 unsigned char *ivec);
589 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
590 size_t len, const AES_KEY *key,
591 unsigned char *ivec);
592 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
593 size_t len, const AES_KEY *key,
594 unsigned char *ivec);
595 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
596 size_t len, const AES_KEY *key,
597 unsigned char *ivec);
598 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
599 size_t blocks, const AES_KEY *key,
600 unsigned char *ivec);
601 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
602 size_t blocks, const AES_KEY *key,
603 unsigned char *ivec);
604 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
605 size_t blocks, const AES_KEY *key,
606 unsigned char *ivec);
607 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
608 size_t blocks, const AES_KEY *key1,
609 const AES_KEY *key2, const unsigned char *ivec);
610 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
611 size_t blocks, const AES_KEY *key1,
612 const AES_KEY *key2, const unsigned char *ivec);
613 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
614 size_t blocks, const AES_KEY *key1,
615 const AES_KEY *key2, const unsigned char *ivec);
616 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
617 size_t blocks, const AES_KEY *key1,
618 const AES_KEY *key2, const unsigned char *ivec);
620 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
621 const unsigned char *iv, int enc)
624 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
626 mode = EVP_CIPHER_CTX_mode(ctx);
627 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
628 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
631 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
632 dat->block = (block128_f) aes_t4_decrypt;
635 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
636 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
639 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
640 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
643 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
644 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
651 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
652 dat->block = (block128_f) aes_t4_encrypt;
655 if (mode == EVP_CIPH_CBC_MODE)
656 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
657 else if (mode == EVP_CIPH_CTR_MODE)
658 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
660 dat->stream.cbc = NULL;
663 if (mode == EVP_CIPH_CBC_MODE)
664 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
665 else if (mode == EVP_CIPH_CTR_MODE)
666 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
668 dat->stream.cbc = NULL;
671 if (mode == EVP_CIPH_CBC_MODE)
672 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
673 else if (mode == EVP_CIPH_CTR_MODE)
674 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
676 dat->stream.cbc = NULL;
684 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
691 # define aes_t4_cbc_cipher aes_cbc_cipher
692 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
693 const unsigned char *in, size_t len);
695 # define aes_t4_ecb_cipher aes_ecb_cipher
696 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
697 const unsigned char *in, size_t len);
699 # define aes_t4_ofb_cipher aes_ofb_cipher
700 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
701 const unsigned char *in, size_t len);
703 # define aes_t4_cfb_cipher aes_cfb_cipher
704 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
705 const unsigned char *in, size_t len);
707 # define aes_t4_cfb8_cipher aes_cfb8_cipher
708 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
709 const unsigned char *in, size_t len);
711 # define aes_t4_cfb1_cipher aes_cfb1_cipher
712 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
713 const unsigned char *in, size_t len);
715 # define aes_t4_ctr_cipher aes_ctr_cipher
716 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
717 const unsigned char *in, size_t len);
719 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
720 const unsigned char *iv, int enc)
722 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
726 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
727 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
728 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
729 (block128_f) aes_t4_encrypt);
732 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
735 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
738 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
744 * If we have an iv can set it directly, otherwise use saved IV.
746 if (iv == NULL && gctx->iv_set)
749 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
754 /* If key set use IV, otherwise copy */
756 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
758 memcpy(gctx->iv, iv, gctx->ivlen);
765 # define aes_t4_gcm_cipher aes_gcm_cipher
766 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
767 const unsigned char *in, size_t len);
769 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
770 const unsigned char *iv, int enc)
772 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
777 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
779 /* key_len is two AES keys */
781 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
782 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
785 xctx->stream = aes128_t4_xts_encrypt;
788 xctx->stream = aes256_t4_xts_encrypt;
794 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
796 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
799 xctx->stream = aes128_t4_xts_decrypt;
802 xctx->stream = aes256_t4_xts_decrypt;
809 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
810 EVP_CIPHER_CTX_key_length(ctx) * 4,
812 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
814 xctx->xts.key1 = &xctx->ks1;
818 xctx->xts.key2 = &xctx->ks2;
819 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
825 # define aes_t4_xts_cipher aes_xts_cipher
826 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
827 const unsigned char *in, size_t len);
829 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
830 const unsigned char *iv, int enc)
832 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
836 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
837 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
838 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
839 &cctx->ks, (block128_f) aes_t4_encrypt);
844 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
850 # define aes_t4_ccm_cipher aes_ccm_cipher
851 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
852 const unsigned char *in, size_t len);
854 # ifndef OPENSSL_NO_OCB
855 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
856 const unsigned char *iv, int enc)
858 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
864 * We set both the encrypt and decrypt key here because decrypt
865 * needs both. We could possibly optimise to remove setting the
866 * decrypt for an encryption operation.
868 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
870 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
872 if (!CRYPTO_ocb128_init(&octx->ocb,
873 &octx->ksenc.ks, &octx->ksdec.ks,
874 (block128_f) aes_t4_encrypt,
875 (block128_f) aes_t4_decrypt,
882 * If we have an iv we can set it directly, otherwise use saved IV.
884 if (iv == NULL && octx->iv_set)
887 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
894 /* If key set use IV, otherwise copy */
896 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
898 memcpy(octx->iv, iv, octx->ivlen);
904 # define aes_t4_ocb_cipher aes_ocb_cipher
905 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
906 const unsigned char *in, size_t len);
907 # endif /* OPENSSL_NO_OCB */
909 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
910 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
911 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
912 flags|EVP_CIPH_##MODE##_MODE, \
914 aes_t4_##mode##_cipher, \
916 sizeof(EVP_AES_KEY), \
917 NULL,NULL,NULL,NULL }; \
918 static const EVP_CIPHER aes_##keylen##_##mode = { \
919 nid##_##keylen##_##nmode,blocksize, \
921 flags|EVP_CIPH_##MODE##_MODE, \
923 aes_##mode##_cipher, \
925 sizeof(EVP_AES_KEY), \
926 NULL,NULL,NULL,NULL }; \
927 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
928 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
930 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
931 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
932 nid##_##keylen##_##mode,blocksize, \
933 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
934 flags|EVP_CIPH_##MODE##_MODE, \
935 aes_t4_##mode##_init_key, \
936 aes_t4_##mode##_cipher, \
937 aes_##mode##_cleanup, \
938 sizeof(EVP_AES_##MODE##_CTX), \
939 NULL,NULL,aes_##mode##_ctrl,NULL }; \
940 static const EVP_CIPHER aes_##keylen##_##mode = { \
941 nid##_##keylen##_##mode,blocksize, \
942 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
943 flags|EVP_CIPH_##MODE##_MODE, \
944 aes_##mode##_init_key, \
945 aes_##mode##_cipher, \
946 aes_##mode##_cleanup, \
947 sizeof(EVP_AES_##MODE##_CTX), \
948 NULL,NULL,aes_##mode##_ctrl,NULL }; \
949 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
950 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
954 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
955 static const EVP_CIPHER aes_##keylen##_##mode = { \
956 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
957 flags|EVP_CIPH_##MODE##_MODE, \
959 aes_##mode##_cipher, \
961 sizeof(EVP_AES_KEY), \
962 NULL,NULL,NULL,NULL }; \
963 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
964 { return &aes_##keylen##_##mode; }
966 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
967 static const EVP_CIPHER aes_##keylen##_##mode = { \
968 nid##_##keylen##_##mode,blocksize, \
969 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
970 flags|EVP_CIPH_##MODE##_MODE, \
971 aes_##mode##_init_key, \
972 aes_##mode##_cipher, \
973 aes_##mode##_cleanup, \
974 sizeof(EVP_AES_##MODE##_CTX), \
975 NULL,NULL,aes_##mode##_ctrl,NULL }; \
976 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
977 { return &aes_##keylen##_##mode; }
981 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
982 # include "arm_arch.h"
983 # if __ARM_MAX_ARCH__>=7
984 # if defined(BSAES_ASM)
985 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
987 # if defined(VPAES_ASM)
988 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
990 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
991 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
992 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
993 # define HWAES_encrypt aes_v8_encrypt
994 # define HWAES_decrypt aes_v8_decrypt
995 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
996 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1000 #if defined(HWAES_CAPABLE)
1001 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1003 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1005 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1006 const AES_KEY *key);
1007 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1008 const AES_KEY *key);
1009 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1010 size_t length, const AES_KEY *key,
1011 unsigned char *ivec, const int enc);
1012 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1013 size_t len, const AES_KEY *key,
1014 const unsigned char ivec[16]);
1015 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
1016 size_t len, const AES_KEY *key1,
1017 const AES_KEY *key2, const unsigned char iv[16]);
1018 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
1019 size_t len, const AES_KEY *key1,
1020 const AES_KEY *key2, const unsigned char iv[16]);
1023 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1024 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1025 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1026 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1027 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1028 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1029 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1030 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1032 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1033 const unsigned char *iv, int enc)
1036 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1038 mode = EVP_CIPHER_CTX_mode(ctx);
1039 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1041 #ifdef HWAES_CAPABLE
1042 if (HWAES_CAPABLE) {
1043 ret = HWAES_set_decrypt_key(key,
1044 EVP_CIPHER_CTX_key_length(ctx) * 8,
1046 dat->block = (block128_f) HWAES_decrypt;
1047 dat->stream.cbc = NULL;
1048 # ifdef HWAES_cbc_encrypt
1049 if (mode == EVP_CIPH_CBC_MODE)
1050 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1054 #ifdef BSAES_CAPABLE
1055 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1056 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1058 dat->block = (block128_f) AES_decrypt;
1059 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1062 #ifdef VPAES_CAPABLE
1063 if (VPAES_CAPABLE) {
1064 ret = vpaes_set_decrypt_key(key,
1065 EVP_CIPHER_CTX_key_length(ctx) * 8,
1067 dat->block = (block128_f) vpaes_decrypt;
1068 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1069 (cbc128_f) vpaes_cbc_encrypt : NULL;
1073 ret = AES_set_decrypt_key(key,
1074 EVP_CIPHER_CTX_key_length(ctx) * 8,
1076 dat->block = (block128_f) AES_decrypt;
1077 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1078 (cbc128_f) AES_cbc_encrypt : NULL;
1081 #ifdef HWAES_CAPABLE
1082 if (HWAES_CAPABLE) {
1083 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1085 dat->block = (block128_f) HWAES_encrypt;
1086 dat->stream.cbc = NULL;
1087 # ifdef HWAES_cbc_encrypt
1088 if (mode == EVP_CIPH_CBC_MODE)
1089 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1092 # ifdef HWAES_ctr32_encrypt_blocks
1093 if (mode == EVP_CIPH_CTR_MODE)
1094 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1097 (void)0; /* terminate potentially open 'else' */
1100 #ifdef BSAES_CAPABLE
1101 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1102 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1104 dat->block = (block128_f) AES_encrypt;
1105 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1108 #ifdef VPAES_CAPABLE
1109 if (VPAES_CAPABLE) {
1110 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1112 dat->block = (block128_f) vpaes_encrypt;
1113 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1114 (cbc128_f) vpaes_cbc_encrypt : NULL;
1118 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1120 dat->block = (block128_f) AES_encrypt;
1121 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1122 (cbc128_f) AES_cbc_encrypt : NULL;
1124 if (mode == EVP_CIPH_CTR_MODE)
1125 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1130 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1137 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1138 const unsigned char *in, size_t len)
1140 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1142 if (dat->stream.cbc)
1143 (*dat->stream.cbc) (in, out, len, &dat->ks,
1144 EVP_CIPHER_CTX_iv_noconst(ctx),
1145 EVP_CIPHER_CTX_encrypting(ctx));
1146 else if (EVP_CIPHER_CTX_encrypting(ctx))
1147 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
1148 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1150 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
1151 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1156 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1157 const unsigned char *in, size_t len)
1159 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
1161 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1166 for (i = 0, len -= bl; i <= len; i += bl)
1167 (*dat->block) (in + i, out + i, &dat->ks);
1172 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1173 const unsigned char *in, size_t len)
1175 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1177 int num = EVP_CIPHER_CTX_num(ctx);
1178 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1179 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
1180 EVP_CIPHER_CTX_set_num(ctx, num);
1184 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1185 const unsigned char *in, size_t len)
1187 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1189 int num = EVP_CIPHER_CTX_num(ctx);
1190 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1191 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1192 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1193 EVP_CIPHER_CTX_set_num(ctx, num);
1197 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1198 const unsigned char *in, size_t len)
1200 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1202 int num = EVP_CIPHER_CTX_num(ctx);
1203 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1204 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1205 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1206 EVP_CIPHER_CTX_set_num(ctx, num);
1210 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1211 const unsigned char *in, size_t len)
1213 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1215 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
1216 int num = EVP_CIPHER_CTX_num(ctx);
1217 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1218 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1219 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1220 EVP_CIPHER_CTX_set_num(ctx, num);
1224 while (len >= MAXBITCHUNK) {
1225 int num = EVP_CIPHER_CTX_num(ctx);
1226 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1227 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1228 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1229 EVP_CIPHER_CTX_set_num(ctx, num);
1233 int num = EVP_CIPHER_CTX_num(ctx);
1234 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1235 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1236 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1237 EVP_CIPHER_CTX_set_num(ctx, num);
1243 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1244 const unsigned char *in, size_t len)
1246 unsigned int num = EVP_CIPHER_CTX_num(ctx);
1247 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1249 if (dat->stream.ctr)
1250 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1251 EVP_CIPHER_CTX_iv_noconst(ctx),
1252 EVP_CIPHER_CTX_buf_noconst(ctx),
1253 &num, dat->stream.ctr);
1255 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1256 EVP_CIPHER_CTX_iv_noconst(ctx),
1257 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
1259 EVP_CIPHER_CTX_set_num(ctx, num);
1263 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
1264 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
1265 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
1267 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1269 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1270 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1271 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1272 OPENSSL_free(gctx->iv);
1276 /* increment counter (64-bit int) by 1 */
1277 static void ctr64_inc(unsigned char *counter)
1292 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1294 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
1299 gctx->ivlen = EVP_CIPHER_CTX_iv_length(c);
1300 gctx->iv = EVP_CIPHER_CTX_iv_noconst(c);
1303 gctx->tls_aad_len = -1;
1306 case EVP_CTRL_AEAD_SET_IVLEN:
1309 /* Allocate memory for IV if needed */
1310 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
1311 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
1312 OPENSSL_free(gctx->iv);
1313 gctx->iv = OPENSSL_malloc(arg);
1314 if (gctx->iv == NULL)
1320 case EVP_CTRL_AEAD_SET_TAG:
1321 if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c))
1323 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1327 case EVP_CTRL_AEAD_GET_TAG:
1328 if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c)
1329 || gctx->taglen < 0)
1331 memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg);
1334 case EVP_CTRL_GCM_SET_IV_FIXED:
1335 /* Special case: -1 length restores whole IV */
1337 memcpy(gctx->iv, ptr, gctx->ivlen);
1342 * Fixed field must be at least 4 bytes and invocation field at least
1345 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1348 memcpy(gctx->iv, ptr, arg);
1349 if (EVP_CIPHER_CTX_encrypting(c)
1350 && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1355 case EVP_CTRL_GCM_IV_GEN:
1356 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1358 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1359 if (arg <= 0 || arg > gctx->ivlen)
1361 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1363 * Invocation field will be at least 8 bytes in size and so no need
1364 * to check wrap around or increment more than last 8 bytes.
1366 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1370 case EVP_CTRL_GCM_SET_IV_INV:
1371 if (gctx->iv_gen == 0 || gctx->key_set == 0
1372 || EVP_CIPHER_CTX_encrypting(c))
1374 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1375 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1379 case EVP_CTRL_AEAD_TLS1_AAD:
1380 /* Save the AAD for later use */
1381 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1383 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1384 gctx->tls_aad_len = arg;
1387 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1388 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1389 /* Correct length for explicit IV */
1390 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1391 /* If decrypting correct for tag too */
1392 if (!EVP_CIPHER_CTX_encrypting(c))
1393 len -= EVP_GCM_TLS_TAG_LEN;
1394 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1395 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1397 /* Extra padding: tag appended to record */
1398 return EVP_GCM_TLS_TAG_LEN;
1402 EVP_CIPHER_CTX *out = ptr;
1403 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
1404 if (gctx->gcm.key) {
1405 if (gctx->gcm.key != &gctx->ks)
1407 gctx_out->gcm.key = &gctx_out->ks;
1409 if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c))
1410 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1412 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
1413 if (gctx_out->iv == NULL)
1415 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
1426 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1427 const unsigned char *iv, int enc)
1429 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1434 #ifdef HWAES_CAPABLE
1435 if (HWAES_CAPABLE) {
1436 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1438 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1439 (block128_f) HWAES_encrypt);
1440 # ifdef HWAES_ctr32_encrypt_blocks
1441 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1448 #ifdef BSAES_CAPABLE
1449 if (BSAES_CAPABLE) {
1450 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1452 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1453 (block128_f) AES_encrypt);
1454 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1458 #ifdef VPAES_CAPABLE
1459 if (VPAES_CAPABLE) {
1460 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1462 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1463 (block128_f) vpaes_encrypt);
1468 (void)0; /* terminate potentially open 'else' */
1470 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1472 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
1473 (block128_f) AES_encrypt);
1475 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
1482 * If we have an iv can set it directly, otherwise use saved IV.
1484 if (iv == NULL && gctx->iv_set)
1487 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1492 /* If key set use IV, otherwise copy */
1494 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1496 memcpy(gctx->iv, iv, gctx->ivlen);
1504 * Handle TLS GCM packet format. This consists of the last portion of the IV
1505 * followed by the payload and finally the tag. On encrypt generate IV,
1506 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1510 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1511 const unsigned char *in, size_t len)
1513 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1515 /* Encrypt/decrypt must be performed in place */
1517 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1520 * Set IV from start of buffer or generate IV and write to start of
1523 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ?
1524 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1525 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1528 if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1531 /* Fix buffer and length to point to payload */
1532 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1533 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1534 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1535 if (EVP_CIPHER_CTX_encrypting(ctx)) {
1536 /* Encrypt payload */
1539 #if defined(AES_GCM_ASM)
1540 if (len >= 32 && AES_GCM_ASM(gctx)) {
1541 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1544 bulk = AES_gcm_encrypt(in, out, len,
1546 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1547 gctx->gcm.len.u[1] += bulk;
1550 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1553 len - bulk, gctx->ctr))
1557 #if defined(AES_GCM_ASM2)
1558 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1559 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
1562 bulk = AES_gcm_encrypt(in, out, len,
1564 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1565 gctx->gcm.len.u[1] += bulk;
1568 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1569 in + bulk, out + bulk, len - bulk))
1573 /* Finally write tag */
1574 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1575 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1580 #if defined(AES_GCM_ASM)
1581 if (len >= 16 && AES_GCM_ASM(gctx)) {
1582 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1585 bulk = AES_gcm_decrypt(in, out, len,
1587 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1588 gctx->gcm.len.u[1] += bulk;
1591 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1594 len - bulk, gctx->ctr))
1598 #if defined(AES_GCM_ASM2)
1599 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1600 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
1603 bulk = AES_gcm_decrypt(in, out, len,
1605 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1606 gctx->gcm.len.u[1] += bulk;
1609 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1610 in + bulk, out + bulk, len - bulk))
1614 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
1615 EVP_GCM_TLS_TAG_LEN);
1616 /* If tag mismatch wipe buffer */
1617 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len,
1618 EVP_GCM_TLS_TAG_LEN)) {
1619 OPENSSL_cleanse(out, len);
1627 gctx->tls_aad_len = -1;
1631 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1632 const unsigned char *in, size_t len)
1634 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
1635 /* If not set up, return error */
1639 if (gctx->tls_aad_len >= 0)
1640 return aes_gcm_tls_cipher(ctx, out, in, len);
1646 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1648 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
1651 #if defined(AES_GCM_ASM)
1652 if (len >= 32 && AES_GCM_ASM(gctx)) {
1653 size_t res = (16 - gctx->gcm.mres) % 16;
1655 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1658 bulk = AES_gcm_encrypt(in + res,
1659 out + res, len - res,
1660 gctx->gcm.key, gctx->gcm.Yi.c,
1662 gctx->gcm.len.u[1] += bulk;
1666 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1669 len - bulk, gctx->ctr))
1673 #if defined(AES_GCM_ASM2)
1674 if (len >= 32 && AES_GCM_ASM2(gctx)) {
1675 size_t res = (16 - gctx->gcm.mres) % 16;
1677 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
1680 bulk = AES_gcm_encrypt(in + res,
1681 out + res, len - res,
1682 gctx->gcm.key, gctx->gcm.Yi.c,
1684 gctx->gcm.len.u[1] += bulk;
1688 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1689 in + bulk, out + bulk, len - bulk))
1695 #if defined(AES_GCM_ASM)
1696 if (len >= 16 && AES_GCM_ASM(gctx)) {
1697 size_t res = (16 - gctx->gcm.mres) % 16;
1699 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1702 bulk = AES_gcm_decrypt(in + res,
1703 out + res, len - res,
1705 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1706 gctx->gcm.len.u[1] += bulk;
1710 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1713 len - bulk, gctx->ctr))
1717 #if defined(AES_GCM_ASM2)
1718 if (len >= 16 && AES_GCM_ASM2(gctx)) {
1719 size_t res = (16 - gctx->gcm.mres) % 16;
1721 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
1724 bulk = AES_gcm_decrypt(in + res,
1725 out + res, len - res,
1727 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
1728 gctx->gcm.len.u[1] += bulk;
1732 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1733 in + bulk, out + bulk, len - bulk))
1739 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
1740 if (gctx->taglen < 0)
1742 if (CRYPTO_gcm128_finish(&gctx->gcm,
1743 EVP_CIPHER_CTX_buf_noconst(ctx),
1749 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16);
1751 /* Don't reuse the IV */
1758 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1759 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1760 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1761 | EVP_CIPH_CUSTOM_COPY)
1763 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
1764 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1765 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
1766 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1767 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
1768 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
1770 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1772 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
1773 if (type == EVP_CTRL_COPY) {
1774 EVP_CIPHER_CTX *out = ptr;
1775 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
1776 if (xctx->xts.key1) {
1777 if (xctx->xts.key1 != &xctx->ks1)
1779 xctx_out->xts.key1 = &xctx_out->ks1;
1781 if (xctx->xts.key2) {
1782 if (xctx->xts.key2 != &xctx->ks2)
1784 xctx_out->xts.key2 = &xctx_out->ks2;
1787 } else if (type != EVP_CTRL_INIT)
1789 /* key1 and key2 are used as an indicator both key and IV are set */
1790 xctx->xts.key1 = NULL;
1791 xctx->xts.key2 = NULL;
1795 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1796 const unsigned char *iv, int enc)
1798 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1805 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1807 xctx->stream = NULL;
1809 /* key_len is two AES keys */
1810 #ifdef HWAES_CAPABLE
1811 if (HWAES_CAPABLE) {
1813 HWAES_set_encrypt_key(key,
1814 EVP_CIPHER_CTX_key_length(ctx) * 4,
1816 xctx->xts.block1 = (block128_f) HWAES_encrypt;
1817 # ifdef HWAES_xts_encrypt
1818 xctx->stream = HWAES_xts_encrypt;
1821 HWAES_set_decrypt_key(key,
1822 EVP_CIPHER_CTX_key_length(ctx) * 4,
1824 xctx->xts.block1 = (block128_f) HWAES_decrypt;
1825 # ifdef HWAES_xts_decrypt
1826 xctx->stream = HWAES_xts_decrypt;
1830 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1831 EVP_CIPHER_CTX_key_length(ctx) * 4,
1833 xctx->xts.block2 = (block128_f) HWAES_encrypt;
1835 xctx->xts.key1 = &xctx->ks1;
1839 #ifdef BSAES_CAPABLE
1841 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1844 #ifdef VPAES_CAPABLE
1845 if (VPAES_CAPABLE) {
1847 vpaes_set_encrypt_key(key,
1848 EVP_CIPHER_CTX_key_length(ctx) * 4,
1850 xctx->xts.block1 = (block128_f) vpaes_encrypt;
1852 vpaes_set_decrypt_key(key,
1853 EVP_CIPHER_CTX_key_length(ctx) * 4,
1855 xctx->xts.block1 = (block128_f) vpaes_decrypt;
1858 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1859 EVP_CIPHER_CTX_key_length(ctx) * 4,
1861 xctx->xts.block2 = (block128_f) vpaes_encrypt;
1863 xctx->xts.key1 = &xctx->ks1;
1867 (void)0; /* terminate potentially open 'else' */
1870 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1872 xctx->xts.block1 = (block128_f) AES_encrypt;
1874 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
1876 xctx->xts.block1 = (block128_f) AES_decrypt;
1879 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
1880 EVP_CIPHER_CTX_key_length(ctx) * 4,
1882 xctx->xts.block2 = (block128_f) AES_encrypt;
1884 xctx->xts.key1 = &xctx->ks1;
1888 xctx->xts.key2 = &xctx->ks2;
1889 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
1895 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1896 const unsigned char *in, size_t len)
1898 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
1899 if (!xctx->xts.key1 || !xctx->xts.key2)
1901 if (!out || !in || len < AES_BLOCK_SIZE)
1904 (*xctx->stream) (in, out, len,
1905 xctx->xts.key1, xctx->xts.key2,
1906 EVP_CIPHER_CTX_iv_noconst(ctx));
1907 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
1909 EVP_CIPHER_CTX_encrypting(ctx)))
1914 #define aes_xts_cleanup NULL
1916 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1917 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1918 | EVP_CIPH_CUSTOM_COPY)
1920 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
1921 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
1923 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1925 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
1934 cctx->tls_aad_len = -1;
1937 case EVP_CTRL_AEAD_TLS1_AAD:
1938 /* Save the AAD for later use */
1939 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1941 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1942 cctx->tls_aad_len = arg;
1945 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
1946 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
1947 /* Correct length for explicit IV */
1948 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
1949 /* If decrypting correct for tag too */
1950 if (!EVP_CIPHER_CTX_encrypting(c))
1952 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
1953 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
1955 /* Extra padding: tag appended to record */
1958 case EVP_CTRL_CCM_SET_IV_FIXED:
1959 /* Sanity check length */
1960 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
1962 /* Just copy to first part of IV */
1963 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
1966 case EVP_CTRL_AEAD_SET_IVLEN:
1968 case EVP_CTRL_CCM_SET_L:
1969 if (arg < 2 || arg > 8)
1974 case EVP_CTRL_AEAD_SET_TAG:
1975 if ((arg & 1) || arg < 4 || arg > 16)
1977 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
1981 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
1986 case EVP_CTRL_AEAD_GET_TAG:
1987 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
1989 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1998 EVP_CIPHER_CTX *out = ptr;
1999 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
2000 if (cctx->ccm.key) {
2001 if (cctx->ccm.key != &cctx->ks)
2003 cctx_out->ccm.key = &cctx_out->ks;
2014 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2015 const unsigned char *iv, int enc)
2017 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2022 #ifdef HWAES_CAPABLE
2023 if (HWAES_CAPABLE) {
2024 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2027 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2028 &cctx->ks, (block128_f) HWAES_encrypt);
2034 #ifdef VPAES_CAPABLE
2035 if (VPAES_CAPABLE) {
2036 vpaes_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) vpaes_encrypt);
2045 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2047 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2048 &cctx->ks, (block128_f) AES_encrypt);
2053 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
2059 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2060 const unsigned char *in, size_t len)
2062 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2063 CCM128_CONTEXT *ccm = &cctx->ccm;
2064 /* Encrypt/decrypt must be performed in place */
2065 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2067 /* If encrypting set explicit IV from sequence number (start of AAD) */
2068 if (EVP_CIPHER_CTX_encrypting(ctx))
2069 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
2070 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2071 /* Get rest of IV from explicit IV */
2072 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
2073 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2074 /* Correct length value */
2075 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2076 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
2080 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
2081 /* Fix buffer to point to payload */
2082 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2083 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2084 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2085 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2087 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2089 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2091 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2093 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2095 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2096 unsigned char tag[16];
2097 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2098 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2102 OPENSSL_cleanse(out, len);
2107 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2108 const unsigned char *in, size_t len)
2110 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2111 CCM128_CONTEXT *ccm = &cctx->ccm;
2112 /* If not set up, return error */
2116 if (cctx->tls_aad_len >= 0)
2117 return aes_ccm_tls_cipher(ctx, out, in, len);
2122 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
2126 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2132 /* If have AAD need message length */
2133 if (!cctx->len_set && len)
2135 CRYPTO_ccm128_aad(ccm, in, len);
2138 /* EVP_*Final() doesn't return any data */
2141 /* If not set length yet do it */
2142 if (!cctx->len_set) {
2143 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2148 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2149 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2151 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2157 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2159 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2160 unsigned char tag[16];
2161 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2162 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
2168 OPENSSL_cleanse(out, len);
2176 #define aes_ccm_cleanup NULL
2178 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2179 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2180 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2181 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2182 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2183 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2190 /* Indicates if IV has been set */
2194 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2195 const unsigned char *iv, int enc)
2197 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2201 if (EVP_CIPHER_CTX_encrypting(ctx))
2202 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2205 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2211 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
2212 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
2217 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2218 const unsigned char *in, size_t inlen)
2220 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2222 /* AES wrap with padding has IV length of 4, without padding 8 */
2223 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2224 /* No final operation so always return zero length */
2227 /* Input length must always be non-zero */
2230 /* If decrypting need at least 16 bytes and multiple of 8 */
2231 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
2233 /* If not padding input must be multiple of 8 */
2234 if (!pad && inlen & 0x7)
2237 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2238 /* If padding round up to multiple of 8 */
2240 inlen = (inlen + 7) / 8 * 8;
2245 * If not padding output will be exactly 8 bytes smaller than
2246 * input. If padding it will be at least 8 bytes smaller but we
2247 * don't know how much.
2253 if (EVP_CIPHER_CTX_encrypting(ctx))
2254 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
2256 (block128_f) AES_encrypt);
2258 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
2260 (block128_f) AES_decrypt);
2262 if (EVP_CIPHER_CTX_encrypting(ctx))
2263 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
2264 out, in, inlen, (block128_f) AES_encrypt);
2266 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
2267 out, in, inlen, (block128_f) AES_decrypt);
2269 return rv ? (int)rv : -1;
2272 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2273 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2274 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2276 static const EVP_CIPHER aes_128_wrap = {
2278 8, 16, 8, WRAP_FLAGS,
2279 aes_wrap_init_key, aes_wrap_cipher,
2281 sizeof(EVP_AES_WRAP_CTX),
2282 NULL, NULL, NULL, NULL
2285 const EVP_CIPHER *EVP_aes_128_wrap(void)
2287 return &aes_128_wrap;
2290 static const EVP_CIPHER aes_192_wrap = {
2292 8, 24, 8, WRAP_FLAGS,
2293 aes_wrap_init_key, aes_wrap_cipher,
2295 sizeof(EVP_AES_WRAP_CTX),
2296 NULL, NULL, NULL, NULL
2299 const EVP_CIPHER *EVP_aes_192_wrap(void)
2301 return &aes_192_wrap;
2304 static const EVP_CIPHER aes_256_wrap = {
2306 8, 32, 8, WRAP_FLAGS,
2307 aes_wrap_init_key, aes_wrap_cipher,
2309 sizeof(EVP_AES_WRAP_CTX),
2310 NULL, NULL, NULL, NULL
2313 const EVP_CIPHER *EVP_aes_256_wrap(void)
2315 return &aes_256_wrap;
2318 static const EVP_CIPHER aes_128_wrap_pad = {
2319 NID_id_aes128_wrap_pad,
2320 8, 16, 4, WRAP_FLAGS,
2321 aes_wrap_init_key, aes_wrap_cipher,
2323 sizeof(EVP_AES_WRAP_CTX),
2324 NULL, NULL, NULL, NULL
2327 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
2329 return &aes_128_wrap_pad;
2332 static const EVP_CIPHER aes_192_wrap_pad = {
2333 NID_id_aes192_wrap_pad,
2334 8, 24, 4, WRAP_FLAGS,
2335 aes_wrap_init_key, aes_wrap_cipher,
2337 sizeof(EVP_AES_WRAP_CTX),
2338 NULL, NULL, NULL, NULL
2341 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
2343 return &aes_192_wrap_pad;
2346 static const EVP_CIPHER aes_256_wrap_pad = {
2347 NID_id_aes256_wrap_pad,
2348 8, 32, 4, WRAP_FLAGS,
2349 aes_wrap_init_key, aes_wrap_cipher,
2351 sizeof(EVP_AES_WRAP_CTX),
2352 NULL, NULL, NULL, NULL
2355 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
2357 return &aes_256_wrap_pad;
2360 #ifndef OPENSSL_NO_OCB
2361 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2363 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2364 EVP_CIPHER_CTX *newc;
2365 EVP_AES_OCB_CTX *new_octx;
2371 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
2372 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
2374 octx->data_buf_len = 0;
2375 octx->aad_buf_len = 0;
2378 case EVP_CTRL_AEAD_SET_IVLEN:
2379 /* IV len must be 1 to 15 */
2380 if (arg <= 0 || arg > 15)
2386 case EVP_CTRL_AEAD_SET_TAG:
2388 /* Tag len must be 0 to 16 */
2389 if (arg < 0 || arg > 16)
2395 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
2397 memcpy(octx->tag, ptr, arg);
2400 case EVP_CTRL_AEAD_GET_TAG:
2401 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
2404 memcpy(ptr, octx->tag, arg);
2408 newc = (EVP_CIPHER_CTX *)ptr;
2409 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
2410 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
2411 &new_octx->ksenc.ks,
2412 &new_octx->ksdec.ks);
2420 # ifdef HWAES_CAPABLE
2421 # ifdef HWAES_ocb_encrypt
2422 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
2423 size_t blocks, const void *key,
2424 size_t start_block_num,
2425 unsigned char offset_i[16],
2426 const unsigned char L_[][16],
2427 unsigned char checksum[16]);
2429 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
2431 # ifdef HWAES_ocb_decrypt
2432 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
2433 size_t blocks, const void *key,
2434 size_t start_block_num,
2435 unsigned char offset_i[16],
2436 const unsigned char L_[][16],
2437 unsigned char checksum[16]);
2439 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
2443 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2444 const unsigned char *iv, int enc)
2446 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2452 * We set both the encrypt and decrypt key here because decrypt
2453 * needs both. We could possibly optimise to remove setting the
2454 * decrypt for an encryption operation.
2456 # ifdef HWAES_CAPABLE
2457 if (HWAES_CAPABLE) {
2458 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2460 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2462 if (!CRYPTO_ocb128_init(&octx->ocb,
2463 &octx->ksenc.ks, &octx->ksdec.ks,
2464 (block128_f) HWAES_encrypt,
2465 (block128_f) HWAES_decrypt,
2466 enc ? HWAES_ocb_encrypt
2467 : HWAES_ocb_decrypt))
2472 # ifdef VPAES_CAPABLE
2473 if (VPAES_CAPABLE) {
2474 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2476 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2478 if (!CRYPTO_ocb128_init(&octx->ocb,
2479 &octx->ksenc.ks, &octx->ksdec.ks,
2480 (block128_f) vpaes_encrypt,
2481 (block128_f) vpaes_decrypt,
2487 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2489 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2491 if (!CRYPTO_ocb128_init(&octx->ocb,
2492 &octx->ksenc.ks, &octx->ksdec.ks,
2493 (block128_f) AES_encrypt,
2494 (block128_f) AES_decrypt,
2501 * If we have an iv we can set it directly, otherwise use saved IV.
2503 if (iv == NULL && octx->iv_set)
2506 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
2513 /* If key set use IV, otherwise copy */
2515 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
2517 memcpy(octx->iv, iv, octx->ivlen);
2523 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2524 const unsigned char *in, size_t len)
2528 int written_len = 0;
2529 size_t trailing_len;
2530 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
2532 /* If IV or Key not set then return error */
2541 * Need to ensure we are only passing full blocks to low level OCB
2542 * routines. We do it here rather than in EVP_EncryptUpdate/
2543 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2544 * and those routines don't support that
2547 /* Are we dealing with AAD or normal data here? */
2549 buf = octx->aad_buf;
2550 buf_len = &(octx->aad_buf_len);
2552 buf = octx->data_buf;
2553 buf_len = &(octx->data_buf_len);
2557 * If we've got a partially filled buffer from a previous call then
2558 * use that data first
2561 unsigned int remaining;
2563 remaining = AES_BLOCK_SIZE - (*buf_len);
2564 if (remaining > len) {
2565 memcpy(buf + (*buf_len), in, len);
2569 memcpy(buf + (*buf_len), in, remaining);
2572 * If we get here we've filled the buffer, so process it
2577 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
2579 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2580 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
2584 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
2588 written_len = AES_BLOCK_SIZE;
2591 out += AES_BLOCK_SIZE;
2594 /* Do we have a partial block to handle at the end? */
2595 trailing_len = len % AES_BLOCK_SIZE;
2598 * If we've got some full blocks to handle, then process these first
2600 if (len != trailing_len) {
2602 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
2604 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2605 if (!CRYPTO_ocb128_encrypt
2606 (&octx->ocb, in, out, len - trailing_len))
2609 if (!CRYPTO_ocb128_decrypt
2610 (&octx->ocb, in, out, len - trailing_len))
2613 written_len += len - trailing_len;
2614 in += len - trailing_len;
2617 /* Handle any trailing partial block */
2618 if (trailing_len > 0) {
2619 memcpy(buf, in, trailing_len);
2620 *buf_len = trailing_len;
2626 * First of all empty the buffer of any partial block that we might
2627 * have been provided - both for data and AAD
2629 if (octx->data_buf_len > 0) {
2630 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2631 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
2632 octx->data_buf_len))
2635 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
2636 octx->data_buf_len))
2639 written_len = octx->data_buf_len;
2640 octx->data_buf_len = 0;
2642 if (octx->aad_buf_len > 0) {
2643 if (!CRYPTO_ocb128_aad
2644 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
2646 octx->aad_buf_len = 0;
2648 /* If decrypting then verify */
2649 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
2650 if (octx->taglen < 0)
2652 if (CRYPTO_ocb128_finish(&octx->ocb,
2653 octx->tag, octx->taglen) != 0)
2658 /* If encrypting then just get the tag */
2659 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
2661 /* Don't reuse the IV */
2667 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
2669 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
2670 CRYPTO_ocb128_cleanup(&octx->ocb);
2674 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
2675 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2676 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
2677 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2678 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
2679 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2680 #endif /* OPENSSL_NO_OCB */