2 * Copyright 2001-2018 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; }
953 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
957 # include "s390x_arch.h"
963 * KMA-GCM-AES parameter block
964 * (see z/Architecture Principles of Operation SA22-7832-11)
967 unsigned char reserved[12];
973 unsigned long long g[2];
977 unsigned long long taadl;
978 unsigned long long tpcl;
980 unsigned long long g[2];
996 unsigned char ares[16];
997 unsigned char mres[16];
998 unsigned char kres[16];
1004 } S390X_AES_GCM_CTX;
1006 # define S390X_aes_128_CAPABLE ((OPENSSL_s390xcap_P.km[0] & \
1007 S390X_CAPBIT(S390X_AES_128)) &&\
1008 (OPENSSL_s390xcap_P.kmc[0] & \
1009 S390X_CAPBIT(S390X_AES_128)))
1010 # define S390X_aes_192_CAPABLE ((OPENSSL_s390xcap_P.km[0] & \
1011 S390X_CAPBIT(S390X_AES_192)) &&\
1012 (OPENSSL_s390xcap_P.kmc[0] & \
1013 S390X_CAPBIT(S390X_AES_192)))
1014 # define S390X_aes_256_CAPABLE ((OPENSSL_s390xcap_P.km[0] & \
1015 S390X_CAPBIT(S390X_AES_256)) &&\
1016 (OPENSSL_s390xcap_P.kmc[0] & \
1017 S390X_CAPBIT(S390X_AES_256)))
1019 # define s390x_aes_init_key aes_init_key
1020 static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1021 const unsigned char *iv, int enc);
1023 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1024 # define S390X_aes_192_cbc_CAPABLE 1
1025 # define S390X_aes_256_cbc_CAPABLE 1
1027 # define s390x_aes_cbc_cipher aes_cbc_cipher
1028 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1029 const unsigned char *in, size_t len);
1031 # define S390X_aes_128_ecb_CAPABLE 0
1032 # define S390X_aes_192_ecb_CAPABLE 0
1033 # define S390X_aes_256_ecb_CAPABLE 0
1035 # define s390x_aes_ecb_cipher aes_ecb_cipher
1036 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1037 const unsigned char *in, size_t len);
1039 # define S390X_aes_128_ofb_CAPABLE 0
1040 # define S390X_aes_192_ofb_CAPABLE 0
1041 # define S390X_aes_256_ofb_CAPABLE 0
1043 # define s390x_aes_ofb_cipher aes_ofb_cipher
1044 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1045 const unsigned char *in, size_t len);
1047 # define S390X_aes_128_cfb_CAPABLE 0
1048 # define S390X_aes_192_cfb_CAPABLE 0
1049 # define S390X_aes_256_cfb_CAPABLE 0
1051 # define s390x_aes_cfb_cipher aes_cfb_cipher
1052 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1053 const unsigned char *in, size_t len);
1055 # define S390X_aes_128_cfb8_CAPABLE 0
1056 # define S390X_aes_192_cfb8_CAPABLE 0
1057 # define S390X_aes_256_cfb8_CAPABLE 0
1059 # define s390x_aes_cfb8_cipher aes_cfb8_cipher
1060 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1061 const unsigned char *in, size_t len);
1063 # define S390X_aes_128_cfb1_CAPABLE 0
1064 # define S390X_aes_192_cfb1_CAPABLE 0
1065 # define S390X_aes_256_cfb1_CAPABLE 0
1067 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1068 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1069 const unsigned char *in, size_t len);
1071 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1072 # define S390X_aes_192_ctr_CAPABLE 1
1073 # define S390X_aes_256_ctr_CAPABLE 1
1075 # define s390x_aes_ctr_cipher aes_ctr_cipher
1076 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1077 const unsigned char *in, size_t len);
1079 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1080 (OPENSSL_s390xcap_P.kma[0] & \
1081 S390X_CAPBIT(S390X_AES_128)))
1082 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1083 (OPENSSL_s390xcap_P.kma[0] & \
1084 S390X_CAPBIT(S390X_AES_192)))
1085 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1086 (OPENSSL_s390xcap_P.kma[0] & \
1087 S390X_CAPBIT(S390X_AES_256)))
1089 /* iv + padding length for iv lenghts != 12 */
1090 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1092 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1095 unsigned long long alen;
1098 if (ctx->kma.param.tpcl)
1101 alen = ctx->kma.param.taadl + len;
1102 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1104 ctx->kma.param.taadl = alen;
1109 ctx->ares[n] = *aad;
1114 /* ctx->ares contains a complete block if offset has wrapped around */
1116 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1117 ctx->fc |= S390X_KMA_HS;
1126 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1128 ctx->fc |= S390X_KMA_HS;
1136 ctx->ares[rem] = aad[rem];
1142 static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1143 unsigned char *out, size_t len)
1145 const unsigned char *inptr;
1146 unsigned long long mlen;
1149 unsigned char b[16];
1154 mlen = ctx->kma.param.tpcl + len;
1155 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1157 ctx->kma.param.tpcl = mlen;
1163 while (n && inlen) {
1164 ctx->mres[n] = *inptr;
1169 /* ctx->mres contains a complete block if offset has wrapped around */
1171 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1172 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1173 ctx->fc |= S390X_KMA_HS;
1176 /* previous call already encrypted/decrypted its remainder,
1177 * see comment below */
1194 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1195 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1198 ctx->fc |= S390X_KMA_HS;
1203 * If there is a remainder, it has to be saved such that it can be
1204 * processed by kma later. However, we also have to do the for-now
1205 * unauthenticated encryption/decryption part here and now...
1208 if (!ctx->mreslen) {
1209 buf.w[0] = ctx->kma.param.j0.w[0];
1210 buf.w[1] = ctx->kma.param.j0.w[1];
1211 buf.w[2] = ctx->kma.param.j0.w[2];
1212 buf.w[3] = ctx->kma.param.cv.w + 1;
1213 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1217 for (i = 0; i < rem; i++) {
1218 ctx->mres[n + i] = in[i];
1219 out[i] = in[i] ^ ctx->kres[n + i];
1222 ctx->mreslen += rem;
1227 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1228 const unsigned char *iv)
1230 ctx->kma.param.t.g[0] = 0;
1231 ctx->kma.param.t.g[1] = 0;
1232 ctx->kma.param.tpcl = 0;
1233 ctx->kma.param.taadl = 0;
1238 if (ctx->ivlen == 12) {
1239 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1240 ctx->kma.param.j0.w[3] = 1;
1241 ctx->kma.param.cv.w = 1;
1243 /* ctx->iv has the right size and is already padded. */
1244 memcpy(ctx->iv, iv, ctx->ivlen);
1245 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1246 ctx->fc, &ctx->kma.param);
1247 ctx->fc |= S390X_KMA_HS;
1249 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1250 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1251 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1252 ctx->kma.param.t.g[0] = 0;
1253 ctx->kma.param.t.g[1] = 0;
1257 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1259 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1260 S390X_AES_GCM_CTX *gctx_out;
1261 EVP_CIPHER_CTX *out;
1262 unsigned char *buf, *iv;
1263 int ivlen, enc, len;
1267 ivlen = EVP_CIPHER_CTX_iv_length(c);
1268 iv = EVP_CIPHER_CTX_iv_noconst(c);
1271 gctx->ivlen = ivlen;
1275 gctx->tls_aad_len = -1;
1278 case EVP_CTRL_AEAD_SET_IVLEN:
1283 iv = EVP_CIPHER_CTX_iv_noconst(c);
1284 len = S390X_gcm_ivpadlen(arg);
1286 /* Allocate memory for iv if needed. */
1287 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1289 OPENSSL_free(gctx->iv);
1291 gctx->iv = OPENSSL_malloc(len);
1292 if (gctx->iv == NULL)
1296 memset(gctx->iv + arg, 0, len - arg - 8);
1297 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1302 case EVP_CTRL_AEAD_SET_TAG:
1303 buf = EVP_CIPHER_CTX_buf_noconst(c);
1304 enc = EVP_CIPHER_CTX_encrypting(c);
1305 if (arg <= 0 || arg > 16 || enc)
1308 memcpy(buf, ptr, arg);
1312 case EVP_CTRL_AEAD_GET_TAG:
1313 enc = EVP_CIPHER_CTX_encrypting(c);
1314 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1317 memcpy(ptr, gctx->kma.param.t.b, arg);
1320 case EVP_CTRL_GCM_SET_IV_FIXED:
1321 /* Special case: -1 length restores whole iv */
1323 memcpy(gctx->iv, ptr, gctx->ivlen);
1328 * Fixed field must be at least 4 bytes and invocation field at least
1331 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1335 memcpy(gctx->iv, ptr, arg);
1337 enc = EVP_CIPHER_CTX_encrypting(c);
1338 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1344 case EVP_CTRL_GCM_IV_GEN:
1345 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1348 s390x_aes_gcm_setiv(gctx, gctx->iv);
1350 if (arg <= 0 || arg > gctx->ivlen)
1353 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1355 * Invocation field will be at least 8 bytes in size and so no need
1356 * to check wrap around or increment more than last 8 bytes.
1358 (*(unsigned long long *)(gctx->iv + gctx->ivlen - 8))++;
1362 case EVP_CTRL_GCM_SET_IV_INV:
1363 enc = EVP_CIPHER_CTX_encrypting(c);
1364 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1367 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1368 s390x_aes_gcm_setiv(gctx, gctx->iv);
1372 case EVP_CTRL_AEAD_TLS1_AAD:
1373 /* Save the aad for later use. */
1374 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1377 buf = EVP_CIPHER_CTX_buf_noconst(c);
1378 memcpy(buf, ptr, arg);
1379 gctx->tls_aad_len = arg;
1381 len = buf[arg - 2] << 8 | buf[arg - 1];
1382 /* Correct length for explicit iv. */
1383 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1385 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1387 /* If decrypting correct for tag too. */
1388 enc = EVP_CIPHER_CTX_encrypting(c);
1390 if (len < EVP_GCM_TLS_TAG_LEN)
1392 len -= EVP_GCM_TLS_TAG_LEN;
1394 buf[arg - 2] = len >> 8;
1395 buf[arg - 1] = len & 0xff;
1396 /* Extra padding: tag appended to record. */
1397 return EVP_GCM_TLS_TAG_LEN;
1401 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1402 iv = EVP_CIPHER_CTX_iv_noconst(c);
1404 if (gctx->iv == iv) {
1405 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1407 len = S390X_gcm_ivpadlen(gctx->ivlen);
1409 gctx_out->iv = OPENSSL_malloc(len);
1410 if (gctx_out->iv == NULL)
1413 memcpy(gctx_out->iv, gctx->iv, len);
1422 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1423 const unsigned char *key,
1424 const unsigned char *iv, int enc)
1426 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1429 if (iv == NULL && key == NULL)
1433 keylen = EVP_CIPHER_CTX_key_length(ctx);
1434 memcpy(&gctx->kma.param.k, key, keylen);
1436 /* Convert key size to function code. */
1437 gctx->fc = S390X_AES_128 + (((keylen << 3) - 128) >> 6);
1439 gctx->fc |= S390X_DECRYPT;
1441 if (iv == NULL && gctx->iv_set)
1445 s390x_aes_gcm_setiv(gctx, iv);
1451 s390x_aes_gcm_setiv(gctx, iv);
1453 memcpy(gctx->iv, iv, gctx->ivlen);
1461 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1462 const unsigned char *in, size_t len)
1464 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1465 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1466 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1469 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1472 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1473 : EVP_CTRL_GCM_SET_IV_INV,
1474 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1477 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1478 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1479 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1481 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1482 gctx->kma.param.tpcl = len << 3;
1483 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1484 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1487 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1488 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1490 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1491 EVP_GCM_TLS_TAG_LEN)) {
1492 OPENSSL_cleanse(out, len);
1499 gctx->tls_aad_len = -1;
1503 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1504 const unsigned char *in, size_t len)
1506 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1507 unsigned char *buf, tmp[16];
1513 if (gctx->tls_aad_len >= 0)
1514 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1521 if (s390x_aes_gcm_aad(gctx, in, len))
1524 if (s390x_aes_gcm(gctx, in, out, len))
1529 gctx->kma.param.taadl <<= 3;
1530 gctx->kma.param.tpcl <<= 3;
1531 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1532 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1533 /* recall that we already did en-/decrypt gctx->mres
1534 * and returned it to caller... */
1535 OPENSSL_cleanse(tmp, gctx->mreslen);
1538 enc = EVP_CIPHER_CTX_encrypting(ctx);
1542 if (gctx->taglen < 0)
1545 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1546 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1553 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1555 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1556 const unsigned char *iv;
1561 iv = EVP_CIPHER_CTX_iv(c);
1563 OPENSSL_free(gctx->iv);
1565 OPENSSL_cleanse(gctx, sizeof(*gctx));
1569 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1570 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1571 # define S390X_aes_256_xts_CAPABLE 1
1573 # define s390x_aes_xts_init_key aes_xts_init_key
1574 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1575 const unsigned char *key,
1576 const unsigned char *iv, int enc);
1577 # define s390x_aes_xts_cipher aes_xts_cipher
1578 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1579 const unsigned char *in, size_t len);
1580 # define s390x_aes_xts_ctrl aes_xts_ctrl
1581 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1582 # define s390x_aes_xts_cleanup aes_xts_cleanup
1584 # define S390X_AES_CCM_CTX EVP_AES_CCM_CTX
1585 # define S390X_aes_128_ccm_CAPABLE 0
1586 # define S390X_aes_192_ccm_CAPABLE 0
1587 # define S390X_aes_256_ccm_CAPABLE 0
1589 # define s390x_aes_ccm_init_key aes_ccm_init_key
1590 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
1591 const unsigned char *key,
1592 const unsigned char *iv, int enc);
1593 # define s390x_aes_ccm_cipher aes_ccm_cipher
1594 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1595 const unsigned char *in, size_t len);
1596 # define s390x_aes_ccm_ctrl aes_ccm_ctrl
1597 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1598 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
1600 # ifndef OPENSSL_NO_OCB
1601 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
1602 # define S390X_aes_128_ocb_CAPABLE 0
1603 # define S390X_aes_192_ocb_CAPABLE 0
1604 # define S390X_aes_256_ocb_CAPABLE 0
1606 # define s390x_aes_ocb_init_key aes_ocb_init_key
1607 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1608 const unsigned char *iv, int enc);
1609 # define s390x_aes_ocb_cipher aes_ocb_cipher
1610 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1611 const unsigned char *in, size_t len);
1612 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
1613 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
1614 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
1615 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1618 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
1620 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
1621 nid##_##keylen##_##nmode,blocksize, \
1624 flags | EVP_CIPH_##MODE##_MODE, \
1625 s390x_aes_init_key, \
1626 s390x_aes_##mode##_cipher, \
1628 sizeof(EVP_AES_KEY), \
1634 static const EVP_CIPHER aes_##keylen##_##mode = { \
1635 nid##_##keylen##_##nmode, \
1639 flags | EVP_CIPH_##MODE##_MODE, \
1641 aes_##mode##_cipher, \
1643 sizeof(EVP_AES_KEY), \
1644 NULL,NULL,NULL,NULL \
1646 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1648 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
1649 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
1652 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
1653 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
1654 nid##_##keylen##_##mode, \
1656 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
1658 flags | EVP_CIPH_##MODE##_MODE, \
1659 s390x_aes_##mode##_init_key, \
1660 s390x_aes_##mode##_cipher, \
1661 s390x_aes_##mode##_cleanup, \
1662 sizeof(S390X_AES_##MODE##_CTX), \
1665 s390x_aes_##mode##_ctrl, \
1668 static const EVP_CIPHER aes_##keylen##_##mode = { \
1669 nid##_##keylen##_##mode,blocksize, \
1670 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
1672 flags | EVP_CIPH_##MODE##_MODE, \
1673 aes_##mode##_init_key, \
1674 aes_##mode##_cipher, \
1675 aes_##mode##_cleanup, \
1676 sizeof(EVP_AES_##MODE##_CTX), \
1679 aes_##mode##_ctrl, \
1682 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1684 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
1685 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
1690 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
1691 static const EVP_CIPHER aes_##keylen##_##mode = { \
1692 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
1693 flags|EVP_CIPH_##MODE##_MODE, \
1695 aes_##mode##_cipher, \
1697 sizeof(EVP_AES_KEY), \
1698 NULL,NULL,NULL,NULL }; \
1699 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1700 { return &aes_##keylen##_##mode; }
1702 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
1703 static const EVP_CIPHER aes_##keylen##_##mode = { \
1704 nid##_##keylen##_##mode,blocksize, \
1705 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
1706 flags|EVP_CIPH_##MODE##_MODE, \
1707 aes_##mode##_init_key, \
1708 aes_##mode##_cipher, \
1709 aes_##mode##_cleanup, \
1710 sizeof(EVP_AES_##MODE##_CTX), \
1711 NULL,NULL,aes_##mode##_ctrl,NULL }; \
1712 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1713 { return &aes_##keylen##_##mode; }
1717 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
1718 # include "arm_arch.h"
1719 # if __ARM_MAX_ARCH__>=7
1720 # if defined(BSAES_ASM)
1721 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1723 # if defined(VPAES_ASM)
1724 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
1726 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
1727 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
1728 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
1729 # define HWAES_encrypt aes_v8_encrypt
1730 # define HWAES_decrypt aes_v8_decrypt
1731 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
1732 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1736 #if defined(HWAES_CAPABLE)
1737 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
1739 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
1741 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
1742 const AES_KEY *key);
1743 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
1744 const AES_KEY *key);
1745 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
1746 size_t length, const AES_KEY *key,
1747 unsigned char *ivec, const int enc);
1748 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
1749 size_t len, const AES_KEY *key,
1750 const unsigned char ivec[16]);
1751 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
1752 size_t len, const AES_KEY *key1,
1753 const AES_KEY *key2, const unsigned char iv[16]);
1754 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
1755 size_t len, const AES_KEY *key1,
1756 const AES_KEY *key2, const unsigned char iv[16]);
1759 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1760 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1761 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1762 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1763 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1764 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1765 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1766 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1768 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1769 const unsigned char *iv, int enc)
1772 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1774 mode = EVP_CIPHER_CTX_mode(ctx);
1775 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
1777 #ifdef HWAES_CAPABLE
1778 if (HWAES_CAPABLE) {
1779 ret = HWAES_set_decrypt_key(key,
1780 EVP_CIPHER_CTX_key_length(ctx) * 8,
1782 dat->block = (block128_f) HWAES_decrypt;
1783 dat->stream.cbc = NULL;
1784 # ifdef HWAES_cbc_encrypt
1785 if (mode == EVP_CIPH_CBC_MODE)
1786 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1790 #ifdef BSAES_CAPABLE
1791 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
1792 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1794 dat->block = (block128_f) AES_decrypt;
1795 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
1798 #ifdef VPAES_CAPABLE
1799 if (VPAES_CAPABLE) {
1800 ret = vpaes_set_decrypt_key(key,
1801 EVP_CIPHER_CTX_key_length(ctx) * 8,
1803 dat->block = (block128_f) vpaes_decrypt;
1804 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1805 (cbc128_f) vpaes_cbc_encrypt : NULL;
1809 ret = AES_set_decrypt_key(key,
1810 EVP_CIPHER_CTX_key_length(ctx) * 8,
1812 dat->block = (block128_f) AES_decrypt;
1813 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1814 (cbc128_f) AES_cbc_encrypt : NULL;
1817 #ifdef HWAES_CAPABLE
1818 if (HWAES_CAPABLE) {
1819 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1821 dat->block = (block128_f) HWAES_encrypt;
1822 dat->stream.cbc = NULL;
1823 # ifdef HWAES_cbc_encrypt
1824 if (mode == EVP_CIPH_CBC_MODE)
1825 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
1828 # ifdef HWAES_ctr32_encrypt_blocks
1829 if (mode == EVP_CIPH_CTR_MODE)
1830 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
1833 (void)0; /* terminate potentially open 'else' */
1836 #ifdef BSAES_CAPABLE
1837 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
1838 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1840 dat->block = (block128_f) AES_encrypt;
1841 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
1844 #ifdef VPAES_CAPABLE
1845 if (VPAES_CAPABLE) {
1846 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1848 dat->block = (block128_f) vpaes_encrypt;
1849 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1850 (cbc128_f) vpaes_cbc_encrypt : NULL;
1854 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
1856 dat->block = (block128_f) AES_encrypt;
1857 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
1858 (cbc128_f) AES_cbc_encrypt : NULL;
1860 if (mode == EVP_CIPH_CTR_MODE)
1861 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
1866 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
1873 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1874 const unsigned char *in, size_t len)
1876 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1878 if (dat->stream.cbc)
1879 (*dat->stream.cbc) (in, out, len, &dat->ks,
1880 EVP_CIPHER_CTX_iv_noconst(ctx),
1881 EVP_CIPHER_CTX_encrypting(ctx));
1882 else if (EVP_CIPHER_CTX_encrypting(ctx))
1883 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
1884 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1886 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
1887 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
1892 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1893 const unsigned char *in, size_t len)
1895 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
1897 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1902 for (i = 0, len -= bl; i <= len; i += bl)
1903 (*dat->block) (in + i, out + i, &dat->ks);
1908 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1909 const unsigned char *in, size_t len)
1911 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1913 int num = EVP_CIPHER_CTX_num(ctx);
1914 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
1915 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
1916 EVP_CIPHER_CTX_set_num(ctx, num);
1920 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1921 const unsigned char *in, size_t len)
1923 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1925 int num = EVP_CIPHER_CTX_num(ctx);
1926 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
1927 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1928 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1929 EVP_CIPHER_CTX_set_num(ctx, num);
1933 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1934 const unsigned char *in, size_t len)
1936 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1938 int num = EVP_CIPHER_CTX_num(ctx);
1939 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
1940 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1941 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1942 EVP_CIPHER_CTX_set_num(ctx, num);
1946 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1947 const unsigned char *in, size_t len)
1949 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1951 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
1952 int num = EVP_CIPHER_CTX_num(ctx);
1953 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
1954 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1955 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1956 EVP_CIPHER_CTX_set_num(ctx, num);
1960 while (len >= MAXBITCHUNK) {
1961 int num = EVP_CIPHER_CTX_num(ctx);
1962 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
1963 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1964 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1965 EVP_CIPHER_CTX_set_num(ctx, num);
1969 int num = EVP_CIPHER_CTX_num(ctx);
1970 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
1971 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
1972 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
1973 EVP_CIPHER_CTX_set_num(ctx, num);
1979 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1980 const unsigned char *in, size_t len)
1982 unsigned int num = EVP_CIPHER_CTX_num(ctx);
1983 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
1985 if (dat->stream.ctr)
1986 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
1987 EVP_CIPHER_CTX_iv_noconst(ctx),
1988 EVP_CIPHER_CTX_buf_noconst(ctx),
1989 &num, dat->stream.ctr);
1991 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
1992 EVP_CIPHER_CTX_iv_noconst(ctx),
1993 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
1995 EVP_CIPHER_CTX_set_num(ctx, num);
1999 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2000 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2001 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
2003 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
2005 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2008 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
2009 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
2010 OPENSSL_free(gctx->iv);
2014 /* increment counter (64-bit int) by 1 */
2015 static void ctr64_inc(unsigned char *counter)
2030 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2032 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2037 gctx->ivlen = EVP_CIPHER_CTX_iv_length(c);
2038 gctx->iv = EVP_CIPHER_CTX_iv_noconst(c);
2041 gctx->tls_aad_len = -1;
2044 case EVP_CTRL_AEAD_SET_IVLEN:
2047 /* Allocate memory for IV if needed */
2048 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
2049 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
2050 OPENSSL_free(gctx->iv);
2051 gctx->iv = OPENSSL_malloc(arg);
2052 if (gctx->iv == NULL)
2058 case EVP_CTRL_AEAD_SET_TAG:
2059 if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c))
2061 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
2065 case EVP_CTRL_AEAD_GET_TAG:
2066 if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c)
2067 || gctx->taglen < 0)
2069 memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg);
2072 case EVP_CTRL_GCM_SET_IV_FIXED:
2073 /* Special case: -1 length restores whole IV */
2075 memcpy(gctx->iv, ptr, gctx->ivlen);
2080 * Fixed field must be at least 4 bytes and invocation field at least
2083 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2086 memcpy(gctx->iv, ptr, arg);
2087 if (EVP_CIPHER_CTX_encrypting(c)
2088 && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
2093 case EVP_CTRL_GCM_IV_GEN:
2094 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2096 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2097 if (arg <= 0 || arg > gctx->ivlen)
2099 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2101 * Invocation field will be at least 8 bytes in size and so no need
2102 * to check wrap around or increment more than last 8 bytes.
2104 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2108 case EVP_CTRL_GCM_SET_IV_INV:
2109 if (gctx->iv_gen == 0 || gctx->key_set == 0
2110 || EVP_CIPHER_CTX_encrypting(c))
2112 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2113 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2117 case EVP_CTRL_AEAD_TLS1_AAD:
2118 /* Save the AAD for later use */
2119 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2121 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
2122 gctx->tls_aad_len = arg;
2125 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
2126 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
2127 /* Correct length for explicit IV */
2128 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2130 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2131 /* If decrypting correct for tag too */
2132 if (!EVP_CIPHER_CTX_encrypting(c)) {
2133 if (len < EVP_GCM_TLS_TAG_LEN)
2135 len -= EVP_GCM_TLS_TAG_LEN;
2137 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
2138 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
2140 /* Extra padding: tag appended to record */
2141 return EVP_GCM_TLS_TAG_LEN;
2145 EVP_CIPHER_CTX *out = ptr;
2146 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
2147 if (gctx->gcm.key) {
2148 if (gctx->gcm.key != &gctx->ks)
2150 gctx_out->gcm.key = &gctx_out->ks;
2152 if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c))
2153 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
2155 gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
2156 if (gctx_out->iv == NULL)
2158 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2169 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2170 const unsigned char *iv, int enc)
2172 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
2177 #ifdef HWAES_CAPABLE
2178 if (HWAES_CAPABLE) {
2179 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2181 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2182 (block128_f) HWAES_encrypt);
2183 # ifdef HWAES_ctr32_encrypt_blocks
2184 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2191 #ifdef BSAES_CAPABLE
2192 if (BSAES_CAPABLE) {
2193 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2195 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2196 (block128_f) AES_encrypt);
2197 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2201 #ifdef VPAES_CAPABLE
2202 if (VPAES_CAPABLE) {
2203 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2205 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2206 (block128_f) vpaes_encrypt);
2211 (void)0; /* terminate potentially open 'else' */
2213 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2215 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2216 (block128_f) AES_encrypt);
2218 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
2225 * If we have an iv can set it directly, otherwise use saved IV.
2227 if (iv == NULL && gctx->iv_set)
2230 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
2235 /* If key set use IV, otherwise copy */
2237 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
2239 memcpy(gctx->iv, iv, gctx->ivlen);
2247 * Handle TLS GCM packet format. This consists of the last portion of the IV
2248 * followed by the payload and finally the tag. On encrypt generate IV,
2249 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
2253 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2254 const unsigned char *in, size_t len)
2256 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
2258 /* Encrypt/decrypt must be performed in place */
2260 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
2263 * Set IV from start of buffer or generate IV and write to start of
2266 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ?
2267 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
2268 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
2271 if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
2274 /* Fix buffer and length to point to payload */
2275 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
2276 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
2277 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
2278 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2279 /* Encrypt payload */
2282 #if defined(AES_GCM_ASM)
2283 if (len >= 32 && AES_GCM_ASM(gctx)) {
2284 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
2287 bulk = AES_gcm_encrypt(in, out, len,
2289 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
2290 gctx->gcm.len.u[1] += bulk;
2293 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
2296 len - bulk, gctx->ctr))
2300 #if defined(AES_GCM_ASM2)
2301 if (len >= 32 && AES_GCM_ASM2(gctx)) {
2302 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
2305 bulk = AES_gcm_encrypt(in, out, len,
2307 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
2308 gctx->gcm.len.u[1] += bulk;
2311 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
2312 in + bulk, out + bulk, len - bulk))
2316 /* Finally write tag */
2317 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
2318 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
2323 #if defined(AES_GCM_ASM)
2324 if (len >= 16 && AES_GCM_ASM(gctx)) {
2325 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
2328 bulk = AES_gcm_decrypt(in, out, len,
2330 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
2331 gctx->gcm.len.u[1] += bulk;
2334 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
2337 len - bulk, gctx->ctr))
2341 #if defined(AES_GCM_ASM2)
2342 if (len >= 16 && AES_GCM_ASM2(gctx)) {
2343 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
2346 bulk = AES_gcm_decrypt(in, out, len,
2348 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
2349 gctx->gcm.len.u[1] += bulk;
2352 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
2353 in + bulk, out + bulk, len - bulk))
2357 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx),
2358 EVP_GCM_TLS_TAG_LEN);
2359 /* If tag mismatch wipe buffer */
2360 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len,
2361 EVP_GCM_TLS_TAG_LEN)) {
2362 OPENSSL_cleanse(out, len);
2370 gctx->tls_aad_len = -1;
2374 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2375 const unsigned char *in, size_t len)
2377 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
2378 /* If not set up, return error */
2382 if (gctx->tls_aad_len >= 0)
2383 return aes_gcm_tls_cipher(ctx, out, in, len);
2389 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
2391 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
2394 #if defined(AES_GCM_ASM)
2395 if (len >= 32 && AES_GCM_ASM(gctx)) {
2396 size_t res = (16 - gctx->gcm.mres) % 16;
2398 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
2401 bulk = AES_gcm_encrypt(in + res,
2402 out + res, len - res,
2403 gctx->gcm.key, gctx->gcm.Yi.c,
2405 gctx->gcm.len.u[1] += bulk;
2409 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
2412 len - bulk, gctx->ctr))
2416 #if defined(AES_GCM_ASM2)
2417 if (len >= 32 && AES_GCM_ASM2(gctx)) {
2418 size_t res = (16 - gctx->gcm.mres) % 16;
2420 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
2423 bulk = AES_gcm_encrypt(in + res,
2424 out + res, len - res,
2425 gctx->gcm.key, gctx->gcm.Yi.c,
2427 gctx->gcm.len.u[1] += bulk;
2431 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
2432 in + bulk, out + bulk, len - bulk))
2438 #if defined(AES_GCM_ASM)
2439 if (len >= 16 && AES_GCM_ASM(gctx)) {
2440 size_t res = (16 - gctx->gcm.mres) % 16;
2442 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
2445 bulk = AES_gcm_decrypt(in + res,
2446 out + res, len - res,
2448 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
2449 gctx->gcm.len.u[1] += bulk;
2453 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
2456 len - bulk, gctx->ctr))
2460 #if defined(AES_GCM_ASM2)
2461 if (len >= 16 && AES_GCM_ASM2(gctx)) {
2462 size_t res = (16 - gctx->gcm.mres) % 16;
2464 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
2467 bulk = AES_gcm_decrypt(in + res,
2468 out + res, len - res,
2470 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
2471 gctx->gcm.len.u[1] += bulk;
2475 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
2476 in + bulk, out + bulk, len - bulk))
2482 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
2483 if (gctx->taglen < 0)
2485 if (CRYPTO_gcm128_finish(&gctx->gcm,
2486 EVP_CIPHER_CTX_buf_noconst(ctx),
2492 CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16);
2494 /* Don't reuse the IV */
2501 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
2502 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2503 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
2504 | EVP_CIPH_CUSTOM_COPY)
2506 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
2507 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2508 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
2509 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2510 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
2511 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2513 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2515 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
2516 if (type == EVP_CTRL_COPY) {
2517 EVP_CIPHER_CTX *out = ptr;
2518 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
2519 if (xctx->xts.key1) {
2520 if (xctx->xts.key1 != &xctx->ks1)
2522 xctx_out->xts.key1 = &xctx_out->ks1;
2524 if (xctx->xts.key2) {
2525 if (xctx->xts.key2 != &xctx->ks2)
2527 xctx_out->xts.key2 = &xctx_out->ks2;
2530 } else if (type != EVP_CTRL_INIT)
2532 /* key1 and key2 are used as an indicator both key and IV are set */
2533 xctx->xts.key1 = NULL;
2534 xctx->xts.key2 = NULL;
2538 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2539 const unsigned char *iv, int enc)
2541 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
2548 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
2550 xctx->stream = NULL;
2552 /* key_len is two AES keys */
2553 #ifdef HWAES_CAPABLE
2554 if (HWAES_CAPABLE) {
2556 HWAES_set_encrypt_key(key,
2557 EVP_CIPHER_CTX_key_length(ctx) * 4,
2559 xctx->xts.block1 = (block128_f) HWAES_encrypt;
2560 # ifdef HWAES_xts_encrypt
2561 xctx->stream = HWAES_xts_encrypt;
2564 HWAES_set_decrypt_key(key,
2565 EVP_CIPHER_CTX_key_length(ctx) * 4,
2567 xctx->xts.block1 = (block128_f) HWAES_decrypt;
2568 # ifdef HWAES_xts_decrypt
2569 xctx->stream = HWAES_xts_decrypt;
2573 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
2574 EVP_CIPHER_CTX_key_length(ctx) * 4,
2576 xctx->xts.block2 = (block128_f) HWAES_encrypt;
2578 xctx->xts.key1 = &xctx->ks1;
2582 #ifdef BSAES_CAPABLE
2584 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
2587 #ifdef VPAES_CAPABLE
2588 if (VPAES_CAPABLE) {
2590 vpaes_set_encrypt_key(key,
2591 EVP_CIPHER_CTX_key_length(ctx) * 4,
2593 xctx->xts.block1 = (block128_f) vpaes_encrypt;
2595 vpaes_set_decrypt_key(key,
2596 EVP_CIPHER_CTX_key_length(ctx) * 4,
2598 xctx->xts.block1 = (block128_f) vpaes_decrypt;
2601 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
2602 EVP_CIPHER_CTX_key_length(ctx) * 4,
2604 xctx->xts.block2 = (block128_f) vpaes_encrypt;
2606 xctx->xts.key1 = &xctx->ks1;
2610 (void)0; /* terminate potentially open 'else' */
2613 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
2615 xctx->xts.block1 = (block128_f) AES_encrypt;
2617 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
2619 xctx->xts.block1 = (block128_f) AES_decrypt;
2622 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
2623 EVP_CIPHER_CTX_key_length(ctx) * 4,
2625 xctx->xts.block2 = (block128_f) AES_encrypt;
2627 xctx->xts.key1 = &xctx->ks1;
2631 xctx->xts.key2 = &xctx->ks2;
2632 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
2638 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2639 const unsigned char *in, size_t len)
2641 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
2642 if (!xctx->xts.key1 || !xctx->xts.key2)
2644 if (!out || !in || len < AES_BLOCK_SIZE)
2647 (*xctx->stream) (in, out, len,
2648 xctx->xts.key1, xctx->xts.key2,
2649 EVP_CIPHER_CTX_iv_noconst(ctx));
2650 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
2652 EVP_CIPHER_CTX_encrypting(ctx)))
2657 #define aes_xts_cleanup NULL
2659 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
2660 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
2661 | EVP_CIPH_CUSTOM_COPY)
2663 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
2664 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
2666 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2668 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
2677 cctx->tls_aad_len = -1;
2680 case EVP_CTRL_AEAD_TLS1_AAD:
2681 /* Save the AAD for later use */
2682 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2684 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
2685 cctx->tls_aad_len = arg;
2688 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
2689 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
2690 /* Correct length for explicit IV */
2691 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2693 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2694 /* If decrypting correct for tag too */
2695 if (!EVP_CIPHER_CTX_encrypting(c)) {
2700 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
2701 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
2703 /* Extra padding: tag appended to record */
2706 case EVP_CTRL_CCM_SET_IV_FIXED:
2707 /* Sanity check length */
2708 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2710 /* Just copy to first part of IV */
2711 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
2714 case EVP_CTRL_AEAD_SET_IVLEN:
2717 case EVP_CTRL_CCM_SET_L:
2718 if (arg < 2 || arg > 8)
2723 case EVP_CTRL_AEAD_SET_TAG:
2724 if ((arg & 1) || arg < 4 || arg > 16)
2726 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
2730 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
2735 case EVP_CTRL_AEAD_GET_TAG:
2736 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
2738 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
2747 EVP_CIPHER_CTX *out = ptr;
2748 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
2749 if (cctx->ccm.key) {
2750 if (cctx->ccm.key != &cctx->ks)
2752 cctx_out->ccm.key = &cctx_out->ks;
2763 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2764 const unsigned char *iv, int enc)
2766 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2771 #ifdef HWAES_CAPABLE
2772 if (HWAES_CAPABLE) {
2773 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2776 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2777 &cctx->ks, (block128_f) HWAES_encrypt);
2783 #ifdef VPAES_CAPABLE
2784 if (VPAES_CAPABLE) {
2785 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2787 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2788 &cctx->ks, (block128_f) vpaes_encrypt);
2794 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2796 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
2797 &cctx->ks, (block128_f) AES_encrypt);
2802 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
2808 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2809 const unsigned char *in, size_t len)
2811 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2812 CCM128_CONTEXT *ccm = &cctx->ccm;
2813 /* Encrypt/decrypt must be performed in place */
2814 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
2816 /* If encrypting set explicit IV from sequence number (start of AAD) */
2817 if (EVP_CIPHER_CTX_encrypting(ctx))
2818 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
2819 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2820 /* Get rest of IV from explicit IV */
2821 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
2822 EVP_CCM_TLS_EXPLICIT_IV_LEN);
2823 /* Correct length value */
2824 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2825 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
2829 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
2830 /* Fix buffer to point to payload */
2831 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2832 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2833 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2834 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2836 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2838 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
2840 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
2842 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2844 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2845 unsigned char tag[16];
2846 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2847 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
2851 OPENSSL_cleanse(out, len);
2856 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2857 const unsigned char *in, size_t len)
2859 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
2860 CCM128_CONTEXT *ccm = &cctx->ccm;
2861 /* If not set up, return error */
2865 if (cctx->tls_aad_len >= 0)
2866 return aes_ccm_tls_cipher(ctx, out, in, len);
2868 /* EVP_*Final() doesn't return any data */
2869 if (in == NULL && out != NULL)
2875 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
2879 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2885 /* If have AAD need message length */
2886 if (!cctx->len_set && len)
2888 CRYPTO_ccm128_aad(ccm, in, len);
2891 /* If not set length yet do it */
2892 if (!cctx->len_set) {
2893 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
2898 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2899 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
2901 CRYPTO_ccm128_encrypt(ccm, in, out, len))
2907 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
2909 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
2910 unsigned char tag[16];
2911 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
2912 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
2918 OPENSSL_cleanse(out, len);
2926 #define aes_ccm_cleanup NULL
2928 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
2929 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2930 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
2931 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2932 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
2933 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
2940 /* Indicates if IV has been set */
2944 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2945 const unsigned char *iv, int enc)
2947 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2951 if (EVP_CIPHER_CTX_encrypting(ctx))
2952 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2955 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2961 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
2962 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
2967 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2968 const unsigned char *in, size_t inlen)
2970 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
2972 /* AES wrap with padding has IV length of 4, without padding 8 */
2973 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
2974 /* No final operation so always return zero length */
2977 /* Input length must always be non-zero */
2980 /* If decrypting need at least 16 bytes and multiple of 8 */
2981 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
2983 /* If not padding input must be multiple of 8 */
2984 if (!pad && inlen & 0x7)
2986 if (is_partially_overlapping(out, in, inlen)) {
2987 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
2991 if (EVP_CIPHER_CTX_encrypting(ctx)) {
2992 /* If padding round up to multiple of 8 */
2994 inlen = (inlen + 7) / 8 * 8;
2999 * If not padding output will be exactly 8 bytes smaller than
3000 * input. If padding it will be at least 8 bytes smaller but we
3001 * don't know how much.
3007 if (EVP_CIPHER_CTX_encrypting(ctx))
3008 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3010 (block128_f) AES_encrypt);
3012 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3014 (block128_f) AES_decrypt);
3016 if (EVP_CIPHER_CTX_encrypting(ctx))
3017 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3018 out, in, inlen, (block128_f) AES_encrypt);
3020 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3021 out, in, inlen, (block128_f) AES_decrypt);
3023 return rv ? (int)rv : -1;
3026 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3027 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3028 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3030 static const EVP_CIPHER aes_128_wrap = {
3032 8, 16, 8, WRAP_FLAGS,
3033 aes_wrap_init_key, aes_wrap_cipher,
3035 sizeof(EVP_AES_WRAP_CTX),
3036 NULL, NULL, NULL, NULL
3039 const EVP_CIPHER *EVP_aes_128_wrap(void)
3041 return &aes_128_wrap;
3044 static const EVP_CIPHER aes_192_wrap = {
3046 8, 24, 8, WRAP_FLAGS,
3047 aes_wrap_init_key, aes_wrap_cipher,
3049 sizeof(EVP_AES_WRAP_CTX),
3050 NULL, NULL, NULL, NULL
3053 const EVP_CIPHER *EVP_aes_192_wrap(void)
3055 return &aes_192_wrap;
3058 static const EVP_CIPHER aes_256_wrap = {
3060 8, 32, 8, WRAP_FLAGS,
3061 aes_wrap_init_key, aes_wrap_cipher,
3063 sizeof(EVP_AES_WRAP_CTX),
3064 NULL, NULL, NULL, NULL
3067 const EVP_CIPHER *EVP_aes_256_wrap(void)
3069 return &aes_256_wrap;
3072 static const EVP_CIPHER aes_128_wrap_pad = {
3073 NID_id_aes128_wrap_pad,
3074 8, 16, 4, WRAP_FLAGS,
3075 aes_wrap_init_key, aes_wrap_cipher,
3077 sizeof(EVP_AES_WRAP_CTX),
3078 NULL, NULL, NULL, NULL
3081 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
3083 return &aes_128_wrap_pad;
3086 static const EVP_CIPHER aes_192_wrap_pad = {
3087 NID_id_aes192_wrap_pad,
3088 8, 24, 4, WRAP_FLAGS,
3089 aes_wrap_init_key, aes_wrap_cipher,
3091 sizeof(EVP_AES_WRAP_CTX),
3092 NULL, NULL, NULL, NULL
3095 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
3097 return &aes_192_wrap_pad;
3100 static const EVP_CIPHER aes_256_wrap_pad = {
3101 NID_id_aes256_wrap_pad,
3102 8, 32, 4, WRAP_FLAGS,
3103 aes_wrap_init_key, aes_wrap_cipher,
3105 sizeof(EVP_AES_WRAP_CTX),
3106 NULL, NULL, NULL, NULL
3109 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
3111 return &aes_256_wrap_pad;
3114 #ifndef OPENSSL_NO_OCB
3115 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3117 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
3118 EVP_CIPHER_CTX *newc;
3119 EVP_AES_OCB_CTX *new_octx;
3125 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
3126 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
3128 octx->data_buf_len = 0;
3129 octx->aad_buf_len = 0;
3132 case EVP_CTRL_AEAD_SET_IVLEN:
3133 /* IV len must be 1 to 15 */
3134 if (arg <= 0 || arg > 15)
3140 case EVP_CTRL_AEAD_SET_TAG:
3142 /* Tag len must be 0 to 16 */
3143 if (arg < 0 || arg > 16)
3149 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
3151 memcpy(octx->tag, ptr, arg);
3154 case EVP_CTRL_AEAD_GET_TAG:
3155 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
3158 memcpy(ptr, octx->tag, arg);
3162 newc = (EVP_CIPHER_CTX *)ptr;
3163 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
3164 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
3165 &new_octx->ksenc.ks,
3166 &new_octx->ksdec.ks);
3174 # ifdef HWAES_CAPABLE
3175 # ifdef HWAES_ocb_encrypt
3176 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
3177 size_t blocks, const void *key,
3178 size_t start_block_num,
3179 unsigned char offset_i[16],
3180 const unsigned char L_[][16],
3181 unsigned char checksum[16]);
3183 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
3185 # ifdef HWAES_ocb_decrypt
3186 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
3187 size_t blocks, const void *key,
3188 size_t start_block_num,
3189 unsigned char offset_i[16],
3190 const unsigned char L_[][16],
3191 unsigned char checksum[16]);
3193 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
3197 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3198 const unsigned char *iv, int enc)
3200 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
3206 * We set both the encrypt and decrypt key here because decrypt
3207 * needs both. We could possibly optimise to remove setting the
3208 * decrypt for an encryption operation.
3210 # ifdef HWAES_CAPABLE
3211 if (HWAES_CAPABLE) {
3212 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3214 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3216 if (!CRYPTO_ocb128_init(&octx->ocb,
3217 &octx->ksenc.ks, &octx->ksdec.ks,
3218 (block128_f) HWAES_encrypt,
3219 (block128_f) HWAES_decrypt,
3220 enc ? HWAES_ocb_encrypt
3221 : HWAES_ocb_decrypt))
3226 # ifdef VPAES_CAPABLE
3227 if (VPAES_CAPABLE) {
3228 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3230 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3232 if (!CRYPTO_ocb128_init(&octx->ocb,
3233 &octx->ksenc.ks, &octx->ksdec.ks,
3234 (block128_f) vpaes_encrypt,
3235 (block128_f) vpaes_decrypt,
3241 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3243 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3245 if (!CRYPTO_ocb128_init(&octx->ocb,
3246 &octx->ksenc.ks, &octx->ksdec.ks,
3247 (block128_f) AES_encrypt,
3248 (block128_f) AES_decrypt,
3255 * If we have an iv we can set it directly, otherwise use saved IV.
3257 if (iv == NULL && octx->iv_set)
3260 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
3267 /* If key set use IV, otherwise copy */
3269 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
3271 memcpy(octx->iv, iv, octx->ivlen);
3277 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3278 const unsigned char *in, size_t len)
3282 int written_len = 0;
3283 size_t trailing_len;
3284 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
3286 /* If IV or Key not set then return error */
3295 * Need to ensure we are only passing full blocks to low level OCB
3296 * routines. We do it here rather than in EVP_EncryptUpdate/
3297 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
3298 * and those routines don't support that
3301 /* Are we dealing with AAD or normal data here? */
3303 buf = octx->aad_buf;
3304 buf_len = &(octx->aad_buf_len);
3306 buf = octx->data_buf;
3307 buf_len = &(octx->data_buf_len);
3309 if (is_partially_overlapping(out + *buf_len, in, len)) {
3310 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3316 * If we've got a partially filled buffer from a previous call then
3317 * use that data first
3320 unsigned int remaining;
3322 remaining = AES_BLOCK_SIZE - (*buf_len);
3323 if (remaining > len) {
3324 memcpy(buf + (*buf_len), in, len);
3328 memcpy(buf + (*buf_len), in, remaining);
3331 * If we get here we've filled the buffer, so process it
3336 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
3338 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
3339 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
3343 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
3347 written_len = AES_BLOCK_SIZE;
3350 out += AES_BLOCK_SIZE;
3353 /* Do we have a partial block to handle at the end? */
3354 trailing_len = len % AES_BLOCK_SIZE;
3357 * If we've got some full blocks to handle, then process these first
3359 if (len != trailing_len) {
3361 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
3363 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
3364 if (!CRYPTO_ocb128_encrypt
3365 (&octx->ocb, in, out, len - trailing_len))
3368 if (!CRYPTO_ocb128_decrypt
3369 (&octx->ocb, in, out, len - trailing_len))
3372 written_len += len - trailing_len;
3373 in += len - trailing_len;
3376 /* Handle any trailing partial block */
3377 if (trailing_len > 0) {
3378 memcpy(buf, in, trailing_len);
3379 *buf_len = trailing_len;
3385 * First of all empty the buffer of any partial block that we might
3386 * have been provided - both for data and AAD
3388 if (octx->data_buf_len > 0) {
3389 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3390 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
3391 octx->data_buf_len))
3394 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
3395 octx->data_buf_len))
3398 written_len = octx->data_buf_len;
3399 octx->data_buf_len = 0;
3401 if (octx->aad_buf_len > 0) {
3402 if (!CRYPTO_ocb128_aad
3403 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
3405 octx->aad_buf_len = 0;
3407 /* If decrypting then verify */
3408 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
3409 if (octx->taglen < 0)
3411 if (CRYPTO_ocb128_finish(&octx->ocb,
3412 octx->tag, octx->taglen) != 0)
3417 /* If encrypting then just get the tag */
3418 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
3420 /* Don't reuse the IV */
3426 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
3428 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
3429 CRYPTO_ocb128_cleanup(&octx->ocb);
3433 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
3434 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3435 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
3436 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3437 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
3438 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3439 #endif /* OPENSSL_NO_OCB */