2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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 */
47 uint64_t tls_enc_records; /* Number of TLS records encrypted */
55 } ks1, ks2; /* AES key schedules to use */
57 void (*stream) (const unsigned char *in,
58 unsigned char *out, size_t length,
59 const AES_KEY *key1, const AES_KEY *key2,
60 const unsigned char iv[16]);
67 } ks; /* AES key schedule to use */
68 int key_set; /* Set if key initialised */
69 int iv_set; /* Set if an iv is set */
70 int tag_set; /* Set if tag is valid */
71 int len_set; /* Set if message length set */
72 int L, M; /* L and M parameters from RFC3610 */
73 int tls_aad_len; /* TLS AAD length */
78 #ifndef OPENSSL_NO_OCB
83 } ksenc; /* AES key schedule to use for encryption */
87 } ksdec; /* AES key schedule to use for decryption */
88 int key_set; /* Set if key initialised */
89 int iv_set; /* Set if an iv is set */
91 unsigned char *iv; /* Temporary IV store */
92 unsigned char tag[16];
93 unsigned char data_buf[16]; /* Store partial data blocks */
94 unsigned char aad_buf[16]; /* Store partial AAD blocks */
97 int ivlen; /* IV length */
102 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
105 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
107 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
110 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
112 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
115 void vpaes_cbc_encrypt(const unsigned char *in,
118 const AES_KEY *key, unsigned char *ivec, int enc);
121 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
122 size_t length, const AES_KEY *key,
123 unsigned char ivec[16], int enc);
124 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
125 size_t len, const AES_KEY *key,
126 const unsigned char ivec[16]);
127 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
128 size_t len, const AES_KEY *key1,
129 const AES_KEY *key2, const unsigned char iv[16]);
130 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
131 size_t len, const AES_KEY *key1,
132 const AES_KEY *key2, const unsigned char iv[16]);
135 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
136 size_t blocks, const AES_KEY *key,
137 const unsigned char ivec[AES_BLOCK_SIZE]);
140 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
141 const AES_KEY *key1, const AES_KEY *key2,
142 const unsigned char iv[16]);
143 void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
144 const AES_KEY *key1, const AES_KEY *key2,
145 const unsigned char iv[16]);
148 /* increment counter (64-bit int) by 1 */
149 static void ctr64_inc(unsigned char *counter)
164 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
165 # include "ppc_arch.h"
167 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
169 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
170 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
171 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
172 # define HWAES_encrypt aes_p8_encrypt
173 # define HWAES_decrypt aes_p8_decrypt
174 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
175 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
176 # define HWAES_xts_encrypt aes_p8_xts_encrypt
177 # define HWAES_xts_decrypt aes_p8_xts_decrypt
180 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
181 ((defined(__i386) || defined(__i386__) || \
182 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
183 defined(__x86_64) || defined(__x86_64__) || \
184 defined(_M_AMD64) || defined(_M_X64) )
186 extern unsigned int OPENSSL_ia32cap_P[];
189 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
192 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
197 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
199 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
201 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
204 void aesni_encrypt(const unsigned char *in, unsigned char *out,
206 void aesni_decrypt(const unsigned char *in, unsigned char *out,
209 void aesni_ecb_encrypt(const unsigned char *in,
211 size_t length, const AES_KEY *key, int enc);
212 void aesni_cbc_encrypt(const unsigned char *in,
215 const AES_KEY *key, unsigned char *ivec, int enc);
217 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
220 const void *key, const unsigned char *ivec);
222 void aesni_xts_encrypt(const unsigned char *in,
225 const AES_KEY *key1, const AES_KEY *key2,
226 const unsigned char iv[16]);
228 void aesni_xts_decrypt(const unsigned char *in,
231 const AES_KEY *key1, const AES_KEY *key2,
232 const unsigned char iv[16]);
234 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
238 const unsigned char ivec[16],
239 unsigned char cmac[16]);
241 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
245 const unsigned char ivec[16],
246 unsigned char cmac[16]);
248 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
249 size_t aesni_gcm_encrypt(const unsigned char *in,
252 const void *key, unsigned char ivec[16], u64 *Xi);
253 # define AES_gcm_encrypt aesni_gcm_encrypt
254 size_t aesni_gcm_decrypt(const unsigned char *in,
257 const void *key, unsigned char ivec[16], u64 *Xi);
258 # define AES_gcm_decrypt aesni_gcm_decrypt
259 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
261 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
262 gctx->gcm.ghash==gcm_ghash_avx)
263 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
264 gctx->gcm.ghash==gcm_ghash_avx)
265 # undef AES_GCM_ASM2 /* minor size optimization */
268 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
269 const unsigned char *iv, int enc)
272 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
274 mode = EVP_CIPHER_CTX_mode(ctx);
275 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
277 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
279 dat->block = (block128_f) aesni_decrypt;
280 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
281 (cbc128_f) aesni_cbc_encrypt : NULL;
283 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
285 dat->block = (block128_f) aesni_encrypt;
286 if (mode == EVP_CIPH_CBC_MODE)
287 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
288 else if (mode == EVP_CIPH_CTR_MODE)
289 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
291 dat->stream.cbc = NULL;
295 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
302 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
303 const unsigned char *in, size_t len)
305 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
306 EVP_CIPHER_CTX_iv_noconst(ctx),
307 EVP_CIPHER_CTX_encrypting(ctx));
312 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
313 const unsigned char *in, size_t len)
315 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
320 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
321 EVP_CIPHER_CTX_encrypting(ctx));
326 # define aesni_ofb_cipher aes_ofb_cipher
327 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
328 const unsigned char *in, size_t len);
330 # define aesni_cfb_cipher aes_cfb_cipher
331 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
332 const unsigned char *in, size_t len);
334 # define aesni_cfb8_cipher aes_cfb8_cipher
335 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
336 const unsigned char *in, size_t len);
338 # define aesni_cfb1_cipher aes_cfb1_cipher
339 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
340 const unsigned char *in, size_t len);
342 # define aesni_ctr_cipher aes_ctr_cipher
343 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
344 const unsigned char *in, size_t len);
346 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
347 const unsigned char *iv, int enc)
349 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
353 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
355 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
356 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
358 * If we have an iv can set it directly, otherwise use saved IV.
360 if (iv == NULL && gctx->iv_set)
363 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
368 /* If key set use IV, otherwise copy */
370 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
372 memcpy(gctx->iv, iv, gctx->ivlen);
379 # define aesni_gcm_cipher aes_gcm_cipher
380 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
381 const unsigned char *in, size_t len);
383 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
384 const unsigned char *iv, int enc)
386 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
391 /* key_len is two AES keys */
393 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
395 xctx->xts.block1 = (block128_f) aesni_encrypt;
396 xctx->stream = aesni_xts_encrypt;
398 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
400 xctx->xts.block1 = (block128_f) aesni_decrypt;
401 xctx->stream = aesni_xts_decrypt;
404 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
405 EVP_CIPHER_CTX_key_length(ctx) * 4,
407 xctx->xts.block2 = (block128_f) aesni_encrypt;
409 xctx->xts.key1 = &xctx->ks1;
413 xctx->xts.key2 = &xctx->ks2;
414 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
420 # define aesni_xts_cipher aes_xts_cipher
421 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
422 const unsigned char *in, size_t len);
424 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
425 const unsigned char *iv, int enc)
427 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
431 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
433 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
434 &cctx->ks, (block128_f) aesni_encrypt);
435 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
436 (ccm128_f) aesni_ccm64_decrypt_blocks;
440 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
446 # define aesni_ccm_cipher aes_ccm_cipher
447 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
448 const unsigned char *in, size_t len);
450 # ifndef OPENSSL_NO_OCB
451 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
452 size_t blocks, const void *key,
453 size_t start_block_num,
454 unsigned char offset_i[16],
455 const unsigned char L_[][16],
456 unsigned char checksum[16]);
457 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
458 size_t blocks, const void *key,
459 size_t start_block_num,
460 unsigned char offset_i[16],
461 const unsigned char L_[][16],
462 unsigned char checksum[16]);
464 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
465 const unsigned char *iv, int enc)
467 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
473 * We set both the encrypt and decrypt key here because decrypt
474 * needs both. We could possibly optimise to remove setting the
475 * decrypt for an encryption operation.
477 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
479 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
481 if (!CRYPTO_ocb128_init(&octx->ocb,
482 &octx->ksenc.ks, &octx->ksdec.ks,
483 (block128_f) aesni_encrypt,
484 (block128_f) aesni_decrypt,
485 enc ? aesni_ocb_encrypt
486 : aesni_ocb_decrypt))
492 * If we have an iv we can set it directly, otherwise use saved IV.
494 if (iv == NULL && octx->iv_set)
497 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
504 /* If key set use IV, otherwise copy */
506 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
508 memcpy(octx->iv, iv, octx->ivlen);
514 # define aesni_ocb_cipher aes_ocb_cipher
515 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
516 const unsigned char *in, size_t len);
517 # endif /* OPENSSL_NO_OCB */
519 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
520 static const EVP_CIPHER aesni_##keylen##_##mode = { \
521 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
522 flags|EVP_CIPH_##MODE##_MODE, \
524 aesni_##mode##_cipher, \
526 sizeof(EVP_AES_KEY), \
527 NULL,NULL,NULL,NULL }; \
528 static const EVP_CIPHER aes_##keylen##_##mode = { \
529 nid##_##keylen##_##nmode,blocksize, \
531 flags|EVP_CIPH_##MODE##_MODE, \
533 aes_##mode##_cipher, \
535 sizeof(EVP_AES_KEY), \
536 NULL,NULL,NULL,NULL }; \
537 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
538 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
540 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
541 static const EVP_CIPHER aesni_##keylen##_##mode = { \
542 nid##_##keylen##_##mode,blocksize, \
543 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
544 flags|EVP_CIPH_##MODE##_MODE, \
545 aesni_##mode##_init_key, \
546 aesni_##mode##_cipher, \
547 aes_##mode##_cleanup, \
548 sizeof(EVP_AES_##MODE##_CTX), \
549 NULL,NULL,aes_##mode##_ctrl,NULL }; \
550 static const EVP_CIPHER aes_##keylen##_##mode = { \
551 nid##_##keylen##_##mode,blocksize, \
552 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
553 flags|EVP_CIPH_##MODE##_MODE, \
554 aes_##mode##_init_key, \
555 aes_##mode##_cipher, \
556 aes_##mode##_cleanup, \
557 sizeof(EVP_AES_##MODE##_CTX), \
558 NULL,NULL,aes_##mode##_ctrl,NULL }; \
559 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
560 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
562 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
564 # include "sparc_arch.h"
566 extern unsigned int OPENSSL_sparcv9cap_P[];
569 * Initial Fujitsu SPARC64 X support
571 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
572 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
573 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
574 # define HWAES_encrypt aes_fx_encrypt
575 # define HWAES_decrypt aes_fx_decrypt
576 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
577 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
579 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
581 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
582 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
583 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
585 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
588 * Key-length specific subroutines were chosen for following reason.
589 * Each SPARC T4 core can execute up to 8 threads which share core's
590 * resources. Loading as much key material to registers allows to
591 * minimize references to shared memory interface, as well as amount
592 * of instructions in inner loops [much needed on T4]. But then having
593 * non-key-length specific routines would require conditional branches
594 * either in inner loops or on subroutines' entries. Former is hardly
595 * acceptable, while latter means code size increase to size occupied
596 * by multiple key-length specific subroutines, so why fight?
598 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
599 size_t len, const AES_KEY *key,
600 unsigned char *ivec);
601 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
602 size_t len, const AES_KEY *key,
603 unsigned char *ivec);
604 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
605 size_t len, const AES_KEY *key,
606 unsigned char *ivec);
607 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
608 size_t len, const AES_KEY *key,
609 unsigned char *ivec);
610 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
611 size_t len, const AES_KEY *key,
612 unsigned char *ivec);
613 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
614 size_t len, const AES_KEY *key,
615 unsigned char *ivec);
616 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
617 size_t blocks, const AES_KEY *key,
618 unsigned char *ivec);
619 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
620 size_t blocks, const AES_KEY *key,
621 unsigned char *ivec);
622 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
623 size_t blocks, const AES_KEY *key,
624 unsigned char *ivec);
625 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
626 size_t blocks, const AES_KEY *key1,
627 const AES_KEY *key2, const unsigned char *ivec);
628 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
629 size_t blocks, const AES_KEY *key1,
630 const AES_KEY *key2, const unsigned char *ivec);
631 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
632 size_t blocks, const AES_KEY *key1,
633 const AES_KEY *key2, const unsigned char *ivec);
634 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
635 size_t blocks, const AES_KEY *key1,
636 const AES_KEY *key2, const unsigned char *ivec);
638 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
639 const unsigned char *iv, int enc)
642 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
644 mode = EVP_CIPHER_CTX_mode(ctx);
645 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
646 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
649 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
650 dat->block = (block128_f) aes_t4_decrypt;
653 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
654 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
657 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
658 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
661 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
662 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
669 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
670 dat->block = (block128_f) aes_t4_encrypt;
673 if (mode == EVP_CIPH_CBC_MODE)
674 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
675 else if (mode == EVP_CIPH_CTR_MODE)
676 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
678 dat->stream.cbc = NULL;
681 if (mode == EVP_CIPH_CBC_MODE)
682 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
683 else if (mode == EVP_CIPH_CTR_MODE)
684 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
686 dat->stream.cbc = NULL;
689 if (mode == EVP_CIPH_CBC_MODE)
690 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
691 else if (mode == EVP_CIPH_CTR_MODE)
692 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
694 dat->stream.cbc = NULL;
702 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
709 # define aes_t4_cbc_cipher aes_cbc_cipher
710 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
711 const unsigned char *in, size_t len);
713 # define aes_t4_ecb_cipher aes_ecb_cipher
714 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
715 const unsigned char *in, size_t len);
717 # define aes_t4_ofb_cipher aes_ofb_cipher
718 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
719 const unsigned char *in, size_t len);
721 # define aes_t4_cfb_cipher aes_cfb_cipher
722 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
723 const unsigned char *in, size_t len);
725 # define aes_t4_cfb8_cipher aes_cfb8_cipher
726 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
727 const unsigned char *in, size_t len);
729 # define aes_t4_cfb1_cipher aes_cfb1_cipher
730 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
731 const unsigned char *in, size_t len);
733 # define aes_t4_ctr_cipher aes_ctr_cipher
734 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
735 const unsigned char *in, size_t len);
737 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
738 const unsigned char *iv, int enc)
740 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
744 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
745 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
746 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
747 (block128_f) aes_t4_encrypt);
750 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
753 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
756 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
762 * If we have an iv can set it directly, otherwise use saved IV.
764 if (iv == NULL && gctx->iv_set)
767 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
772 /* If key set use IV, otherwise copy */
774 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
776 memcpy(gctx->iv, iv, gctx->ivlen);
783 # define aes_t4_gcm_cipher aes_gcm_cipher
784 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
785 const unsigned char *in, size_t len);
787 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
788 const unsigned char *iv, int enc)
790 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
795 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
797 /* key_len is two AES keys */
799 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
800 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
803 xctx->stream = aes128_t4_xts_encrypt;
806 xctx->stream = aes256_t4_xts_encrypt;
812 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
814 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
817 xctx->stream = aes128_t4_xts_decrypt;
820 xctx->stream = aes256_t4_xts_decrypt;
827 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
828 EVP_CIPHER_CTX_key_length(ctx) * 4,
830 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
832 xctx->xts.key1 = &xctx->ks1;
836 xctx->xts.key2 = &xctx->ks2;
837 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
843 # define aes_t4_xts_cipher aes_xts_cipher
844 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
845 const unsigned char *in, size_t len);
847 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
848 const unsigned char *iv, int enc)
850 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
854 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
855 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
856 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
857 &cctx->ks, (block128_f) aes_t4_encrypt);
862 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
868 # define aes_t4_ccm_cipher aes_ccm_cipher
869 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
870 const unsigned char *in, size_t len);
872 # ifndef OPENSSL_NO_OCB
873 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
874 const unsigned char *iv, int enc)
876 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
882 * We set both the encrypt and decrypt key here because decrypt
883 * needs both. We could possibly optimise to remove setting the
884 * decrypt for an encryption operation.
886 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
888 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
890 if (!CRYPTO_ocb128_init(&octx->ocb,
891 &octx->ksenc.ks, &octx->ksdec.ks,
892 (block128_f) aes_t4_encrypt,
893 (block128_f) aes_t4_decrypt,
900 * If we have an iv we can set it directly, otherwise use saved IV.
902 if (iv == NULL && octx->iv_set)
905 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
912 /* If key set use IV, otherwise copy */
914 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
916 memcpy(octx->iv, iv, octx->ivlen);
922 # define aes_t4_ocb_cipher aes_ocb_cipher
923 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
924 const unsigned char *in, size_t len);
925 # endif /* OPENSSL_NO_OCB */
927 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
928 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
929 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
930 flags|EVP_CIPH_##MODE##_MODE, \
932 aes_t4_##mode##_cipher, \
934 sizeof(EVP_AES_KEY), \
935 NULL,NULL,NULL,NULL }; \
936 static const EVP_CIPHER aes_##keylen##_##mode = { \
937 nid##_##keylen##_##nmode,blocksize, \
939 flags|EVP_CIPH_##MODE##_MODE, \
941 aes_##mode##_cipher, \
943 sizeof(EVP_AES_KEY), \
944 NULL,NULL,NULL,NULL }; \
945 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
946 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
948 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
949 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
950 nid##_##keylen##_##mode,blocksize, \
951 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
952 flags|EVP_CIPH_##MODE##_MODE, \
953 aes_t4_##mode##_init_key, \
954 aes_t4_##mode##_cipher, \
955 aes_##mode##_cleanup, \
956 sizeof(EVP_AES_##MODE##_CTX), \
957 NULL,NULL,aes_##mode##_ctrl,NULL }; \
958 static const EVP_CIPHER aes_##keylen##_##mode = { \
959 nid##_##keylen##_##mode,blocksize, \
960 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
961 flags|EVP_CIPH_##MODE##_MODE, \
962 aes_##mode##_init_key, \
963 aes_##mode##_cipher, \
964 aes_##mode##_cleanup, \
965 sizeof(EVP_AES_##MODE##_CTX), \
966 NULL,NULL,aes_##mode##_ctrl,NULL }; \
967 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
968 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
970 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
974 # include "s390x_arch.h"
980 * KM-AES parameter block - begin
981 * (see z/Architecture Principles of Operation >= SA22-7832-06)
986 /* KM-AES parameter block - end */
995 * KMO-AES parameter block - begin
996 * (see z/Architecture Principles of Operation >= SA22-7832-08)
999 unsigned char cv[16];
1000 unsigned char k[32];
1002 /* KMO-AES parameter block - end */
1007 } S390X_AES_OFB_CTX;
1013 * KMF-AES parameter block - begin
1014 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1017 unsigned char cv[16];
1018 unsigned char k[32];
1020 /* KMF-AES parameter block - end */
1025 } S390X_AES_CFB_CTX;
1031 * KMA-GCM-AES parameter block - begin
1032 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1035 unsigned char reserved[12];
1041 unsigned long long g[2];
1042 unsigned char b[16];
1044 unsigned char h[16];
1045 unsigned long long taadl;
1046 unsigned long long tpcl;
1048 unsigned long long g[2];
1051 unsigned char k[32];
1053 /* KMA-GCM-AES parameter block - end */
1065 unsigned char ares[16];
1066 unsigned char mres[16];
1067 unsigned char kres[16];
1073 uint64_t tls_enc_records; /* Number of TLS records encrypted */
1074 } S390X_AES_GCM_CTX;
1080 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1081 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1082 * rounds field is used to store the function code and that the key
1083 * schedule is not stored (if aes hardware support is detected).
1086 unsigned char pad[16];
1092 * KMAC-AES parameter block - begin
1093 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1097 unsigned long long g[2];
1098 unsigned char b[16];
1100 unsigned char k[32];
1102 /* KMAC-AES paramater block - end */
1105 unsigned long long g[2];
1106 unsigned char b[16];
1109 unsigned long long g[2];
1110 unsigned char b[16];
1113 unsigned long long blocks;
1122 unsigned char pad[140];
1126 } S390X_AES_CCM_CTX;
1128 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1129 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1131 /* Most modes of operation need km for partial block processing. */
1132 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1133 S390X_CAPBIT(S390X_AES_128))
1134 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1135 S390X_CAPBIT(S390X_AES_192))
1136 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1137 S390X_CAPBIT(S390X_AES_256))
1139 # define s390x_aes_init_key aes_init_key
1140 static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1141 const unsigned char *iv, int enc);
1143 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1144 # define S390X_aes_192_cbc_CAPABLE 1
1145 # define S390X_aes_256_cbc_CAPABLE 1
1146 # define S390X_AES_CBC_CTX EVP_AES_KEY
1148 # define s390x_aes_cbc_init_key aes_init_key
1150 # define s390x_aes_cbc_cipher aes_cbc_cipher
1151 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1152 const unsigned char *in, size_t len);
1154 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1155 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1156 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1158 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
1159 const unsigned char *key,
1160 const unsigned char *iv, int enc)
1162 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1163 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1165 cctx->fc = S390X_AES_FC(keylen);
1167 cctx->fc |= S390X_DECRYPT;
1169 memcpy(cctx->km.param.k, key, keylen);
1173 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1174 const unsigned char *in, size_t len)
1176 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1178 s390x_km(in, len, out, cctx->fc, &cctx->km.param);
1182 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1183 (OPENSSL_s390xcap_P.kmo[0] & \
1184 S390X_CAPBIT(S390X_AES_128)))
1185 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1186 (OPENSSL_s390xcap_P.kmo[0] & \
1187 S390X_CAPBIT(S390X_AES_192)))
1188 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1189 (OPENSSL_s390xcap_P.kmo[0] & \
1190 S390X_CAPBIT(S390X_AES_256)))
1192 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
1193 const unsigned char *key,
1194 const unsigned char *ivec, int enc)
1196 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1197 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1198 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1199 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1201 memcpy(cctx->kmo.param.cv, iv, ivlen);
1202 memcpy(cctx->kmo.param.k, key, keylen);
1203 cctx->fc = S390X_AES_FC(keylen);
1208 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1209 const unsigned char *in, size_t len)
1211 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1216 *out = *in ^ cctx->kmo.param.cv[n];
1225 len &= ~(size_t)0xf;
1227 s390x_kmo(in, len, out, cctx->fc, &cctx->kmo.param);
1234 s390x_km(cctx->kmo.param.cv, 16, cctx->kmo.param.cv, cctx->fc,
1238 out[n] = in[n] ^ cctx->kmo.param.cv[n];
1247 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1248 (OPENSSL_s390xcap_P.kmf[0] & \
1249 S390X_CAPBIT(S390X_AES_128)))
1250 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1251 (OPENSSL_s390xcap_P.kmf[0] & \
1252 S390X_CAPBIT(S390X_AES_192)))
1253 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1254 (OPENSSL_s390xcap_P.kmf[0] & \
1255 S390X_CAPBIT(S390X_AES_256)))
1257 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
1258 const unsigned char *key,
1259 const unsigned char *ivec, int enc)
1261 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1262 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1263 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1264 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1266 cctx->fc = S390X_AES_FC(keylen);
1267 cctx->fc |= 16 << 24; /* 16 bytes cipher feedback */
1269 cctx->fc |= S390X_DECRYPT;
1272 memcpy(cctx->kmf.param.cv, iv, ivlen);
1273 memcpy(cctx->kmf.param.k, key, keylen);
1277 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1278 const unsigned char *in, size_t len)
1280 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1281 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1282 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1289 *out = cctx->kmf.param.cv[n] ^ tmp;
1290 cctx->kmf.param.cv[n] = enc ? *out : tmp;
1299 len &= ~(size_t)0xf;
1301 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1308 s390x_km(cctx->kmf.param.cv, 16, cctx->kmf.param.cv,
1309 S390X_AES_FC(keylen), cctx->kmf.param.k);
1313 out[n] = cctx->kmf.param.cv[n] ^ tmp;
1314 cctx->kmf.param.cv[n] = enc ? out[n] : tmp;
1323 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1324 S390X_CAPBIT(S390X_AES_128))
1325 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1326 S390X_CAPBIT(S390X_AES_192))
1327 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1328 S390X_CAPBIT(S390X_AES_256))
1330 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
1331 const unsigned char *key,
1332 const unsigned char *ivec, int enc)
1334 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1335 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1336 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1337 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1339 cctx->fc = S390X_AES_FC(keylen);
1340 cctx->fc |= 1 << 24; /* 1 byte cipher feedback */
1342 cctx->fc |= S390X_DECRYPT;
1344 memcpy(cctx->kmf.param.cv, iv, ivlen);
1345 memcpy(cctx->kmf.param.k, key, keylen);
1349 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1350 const unsigned char *in, size_t len)
1352 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1354 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1358 # define S390X_aes_128_cfb1_CAPABLE 0
1359 # define S390X_aes_192_cfb1_CAPABLE 0
1360 # define S390X_aes_256_cfb1_CAPABLE 0
1362 # define s390x_aes_cfb1_init_key aes_init_key
1364 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1365 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1366 const unsigned char *in, size_t len);
1368 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1369 # define S390X_aes_192_ctr_CAPABLE 1
1370 # define S390X_aes_256_ctr_CAPABLE 1
1371 # define S390X_AES_CTR_CTX EVP_AES_KEY
1373 # define s390x_aes_ctr_init_key aes_init_key
1375 # define s390x_aes_ctr_cipher aes_ctr_cipher
1376 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1377 const unsigned char *in, size_t len);
1379 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1380 (OPENSSL_s390xcap_P.kma[0] & \
1381 S390X_CAPBIT(S390X_AES_128)))
1382 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1383 (OPENSSL_s390xcap_P.kma[0] & \
1384 S390X_CAPBIT(S390X_AES_192)))
1385 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1386 (OPENSSL_s390xcap_P.kma[0] & \
1387 S390X_CAPBIT(S390X_AES_256)))
1389 /* iv + padding length for iv lenghts != 12 */
1390 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1393 * Process additional authenticated data. Returns 0 on success. Code is
1396 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1399 unsigned long long alen;
1402 if (ctx->kma.param.tpcl)
1405 alen = ctx->kma.param.taadl + len;
1406 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1408 ctx->kma.param.taadl = alen;
1413 ctx->ares[n] = *aad;
1418 /* ctx->ares contains a complete block if offset has wrapped around */
1420 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1421 ctx->fc |= S390X_KMA_HS;
1428 len &= ~(size_t)0xf;
1430 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1432 ctx->fc |= S390X_KMA_HS;
1440 ctx->ares[rem] = aad[rem];
1447 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1448 * success. Code is big-endian.
1450 static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1451 unsigned char *out, size_t len)
1453 const unsigned char *inptr;
1454 unsigned long long mlen;
1457 unsigned char b[16];
1462 mlen = ctx->kma.param.tpcl + len;
1463 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1465 ctx->kma.param.tpcl = mlen;
1471 while (n && inlen) {
1472 ctx->mres[n] = *inptr;
1477 /* ctx->mres contains a complete block if offset has wrapped around */
1479 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1480 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1481 ctx->fc |= S390X_KMA_HS;
1484 /* previous call already encrypted/decrypted its remainder,
1485 * see comment below */
1500 len &= ~(size_t)0xf;
1502 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1503 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1506 ctx->fc |= S390X_KMA_HS;
1511 * If there is a remainder, it has to be saved such that it can be
1512 * processed by kma later. However, we also have to do the for-now
1513 * unauthenticated encryption/decryption part here and now...
1516 if (!ctx->mreslen) {
1517 buf.w[0] = ctx->kma.param.j0.w[0];
1518 buf.w[1] = ctx->kma.param.j0.w[1];
1519 buf.w[2] = ctx->kma.param.j0.w[2];
1520 buf.w[3] = ctx->kma.param.cv.w + 1;
1521 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1525 for (i = 0; i < rem; i++) {
1526 ctx->mres[n + i] = in[i];
1527 out[i] = in[i] ^ ctx->kres[n + i];
1530 ctx->mreslen += rem;
1536 * Initialize context structure. Code is big-endian.
1538 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1539 const unsigned char *iv)
1541 ctx->kma.param.t.g[0] = 0;
1542 ctx->kma.param.t.g[1] = 0;
1543 ctx->kma.param.tpcl = 0;
1544 ctx->kma.param.taadl = 0;
1549 if (ctx->ivlen == 12) {
1550 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1551 ctx->kma.param.j0.w[3] = 1;
1552 ctx->kma.param.cv.w = 1;
1554 /* ctx->iv has the right size and is already padded. */
1555 memcpy(ctx->iv, iv, ctx->ivlen);
1556 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1557 ctx->fc, &ctx->kma.param);
1558 ctx->fc |= S390X_KMA_HS;
1560 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1561 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1562 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1563 ctx->kma.param.t.g[0] = 0;
1564 ctx->kma.param.t.g[1] = 0;
1569 * Performs various operations on the context structure depending on control
1570 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1571 * Code is big-endian.
1573 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1575 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1576 S390X_AES_GCM_CTX *gctx_out;
1577 EVP_CIPHER_CTX *out;
1578 unsigned char *buf, *iv;
1579 int ivlen, enc, len;
1583 ivlen = EVP_CIPHER_CTX_iv_length(c);
1584 iv = EVP_CIPHER_CTX_iv_noconst(c);
1587 gctx->ivlen = ivlen;
1591 gctx->tls_aad_len = -1;
1594 case EVP_CTRL_AEAD_SET_IVLEN:
1599 iv = EVP_CIPHER_CTX_iv_noconst(c);
1600 len = S390X_gcm_ivpadlen(arg);
1602 /* Allocate memory for iv if needed. */
1603 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1605 OPENSSL_free(gctx->iv);
1607 if ((gctx->iv = OPENSSL_malloc(len)) == NULL) {
1608 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1613 memset(gctx->iv + arg, 0, len - arg - 8);
1614 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1619 case EVP_CTRL_AEAD_SET_TAG:
1620 buf = EVP_CIPHER_CTX_buf_noconst(c);
1621 enc = EVP_CIPHER_CTX_encrypting(c);
1622 if (arg <= 0 || arg > 16 || enc)
1625 memcpy(buf, ptr, arg);
1629 case EVP_CTRL_AEAD_GET_TAG:
1630 enc = EVP_CIPHER_CTX_encrypting(c);
1631 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1634 memcpy(ptr, gctx->kma.param.t.b, arg);
1637 case EVP_CTRL_GCM_SET_IV_FIXED:
1638 /* Special case: -1 length restores whole iv */
1640 memcpy(gctx->iv, ptr, gctx->ivlen);
1645 * Fixed field must be at least 4 bytes and invocation field at least
1648 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1652 memcpy(gctx->iv, ptr, arg);
1654 enc = EVP_CIPHER_CTX_encrypting(c);
1655 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1661 case EVP_CTRL_GCM_IV_GEN:
1662 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1665 s390x_aes_gcm_setiv(gctx, gctx->iv);
1667 if (arg <= 0 || arg > gctx->ivlen)
1670 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1672 * Invocation field will be at least 8 bytes in size and so no need
1673 * to check wrap around or increment more than last 8 bytes.
1675 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1679 case EVP_CTRL_GCM_SET_IV_INV:
1680 enc = EVP_CIPHER_CTX_encrypting(c);
1681 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1684 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1685 s390x_aes_gcm_setiv(gctx, gctx->iv);
1689 case EVP_CTRL_AEAD_TLS1_AAD:
1690 /* Save the aad for later use. */
1691 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1694 buf = EVP_CIPHER_CTX_buf_noconst(c);
1695 memcpy(buf, ptr, arg);
1696 gctx->tls_aad_len = arg;
1697 gctx->tls_enc_records = 0;
1699 len = buf[arg - 2] << 8 | buf[arg - 1];
1700 /* Correct length for explicit iv. */
1701 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1703 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1705 /* If decrypting correct for tag too. */
1706 enc = EVP_CIPHER_CTX_encrypting(c);
1708 if (len < EVP_GCM_TLS_TAG_LEN)
1710 len -= EVP_GCM_TLS_TAG_LEN;
1712 buf[arg - 2] = len >> 8;
1713 buf[arg - 1] = len & 0xff;
1714 /* Extra padding: tag appended to record. */
1715 return EVP_GCM_TLS_TAG_LEN;
1719 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1720 iv = EVP_CIPHER_CTX_iv_noconst(c);
1722 if (gctx->iv == iv) {
1723 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1725 len = S390X_gcm_ivpadlen(gctx->ivlen);
1727 if ((gctx_out->iv = OPENSSL_malloc(len)) == NULL) {
1728 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1732 memcpy(gctx_out->iv, gctx->iv, len);
1742 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1744 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1745 const unsigned char *key,
1746 const unsigned char *iv, int enc)
1748 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1751 if (iv == NULL && key == NULL)
1755 keylen = EVP_CIPHER_CTX_key_length(ctx);
1756 memcpy(&gctx->kma.param.k, key, keylen);
1758 gctx->fc = S390X_AES_FC(keylen);
1760 gctx->fc |= S390X_DECRYPT;
1762 if (iv == NULL && gctx->iv_set)
1766 s390x_aes_gcm_setiv(gctx, iv);
1772 s390x_aes_gcm_setiv(gctx, iv);
1774 memcpy(gctx->iv, iv, gctx->ivlen);
1783 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1784 * if successful. Otherwise -1 is returned. Code is big-endian.
1786 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1787 const unsigned char *in, size_t len)
1789 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1790 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1791 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1794 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1798 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1799 * Requirements from SP 800-38D". The requirements is for one party to the
1800 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1803 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
1804 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
1808 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1809 : EVP_CTRL_GCM_SET_IV_INV,
1810 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1813 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1814 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1815 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1817 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1818 gctx->kma.param.tpcl = len << 3;
1819 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1820 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1823 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1824 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1826 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1827 EVP_GCM_TLS_TAG_LEN)) {
1828 OPENSSL_cleanse(out, len);
1835 gctx->tls_aad_len = -1;
1840 * Called from EVP layer to initialize context, process additional
1841 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1842 * ciphertext or process a TLS packet, depending on context. Returns bytes
1843 * written on success. Otherwise -1 is returned. Code is big-endian.
1845 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1846 const unsigned char *in, size_t len)
1848 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1849 unsigned char *buf, tmp[16];
1855 if (gctx->tls_aad_len >= 0)
1856 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1863 if (s390x_aes_gcm_aad(gctx, in, len))
1866 if (s390x_aes_gcm(gctx, in, out, len))
1871 gctx->kma.param.taadl <<= 3;
1872 gctx->kma.param.tpcl <<= 3;
1873 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1874 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1875 /* recall that we already did en-/decrypt gctx->mres
1876 * and returned it to caller... */
1877 OPENSSL_cleanse(tmp, gctx->mreslen);
1880 enc = EVP_CIPHER_CTX_encrypting(ctx);
1884 if (gctx->taglen < 0)
1887 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1888 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1895 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1897 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1898 const unsigned char *iv;
1903 iv = EVP_CIPHER_CTX_iv(c);
1905 OPENSSL_free(gctx->iv);
1907 OPENSSL_cleanse(gctx, sizeof(*gctx));
1911 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1912 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1913 # define S390X_aes_256_xts_CAPABLE 1
1915 # define s390x_aes_xts_init_key aes_xts_init_key
1916 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1917 const unsigned char *key,
1918 const unsigned char *iv, int enc);
1919 # define s390x_aes_xts_cipher aes_xts_cipher
1920 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1921 const unsigned char *in, size_t len);
1922 # define s390x_aes_xts_ctrl aes_xts_ctrl
1923 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1924 # define s390x_aes_xts_cleanup aes_xts_cleanup
1926 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1927 (OPENSSL_s390xcap_P.kmac[0] & \
1928 S390X_CAPBIT(S390X_AES_128)))
1929 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1930 (OPENSSL_s390xcap_P.kmac[0] & \
1931 S390X_CAPBIT(S390X_AES_192)))
1932 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1933 (OPENSSL_s390xcap_P.kmac[0] & \
1934 S390X_CAPBIT(S390X_AES_256)))
1936 # define S390X_CCM_AAD_FLAG 0x40
1939 * Set nonce and length fields. Code is big-endian.
1941 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX *ctx,
1942 const unsigned char *nonce,
1945 ctx->aes.ccm.nonce.b[0] &= ~S390X_CCM_AAD_FLAG;
1946 ctx->aes.ccm.nonce.g[1] = mlen;
1947 memcpy(ctx->aes.ccm.nonce.b + 1, nonce, 15 - ctx->aes.ccm.l);
1951 * Process additional authenticated data. Code is big-endian.
1953 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX *ctx, const unsigned char *aad,
1962 ctx->aes.ccm.nonce.b[0] |= S390X_CCM_AAD_FLAG;
1964 /* Suppress 'type-punned pointer dereference' warning. */
1965 ptr = ctx->aes.ccm.buf.b;
1967 if (alen < ((1 << 16) - (1 << 8))) {
1968 *(uint16_t *)ptr = alen;
1970 } else if (sizeof(alen) == 8
1971 && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
1972 *(uint16_t *)ptr = 0xffff;
1973 *(uint64_t *)(ptr + 2) = alen;
1976 *(uint16_t *)ptr = 0xfffe;
1977 *(uint32_t *)(ptr + 2) = alen;
1981 while (i < 16 && alen) {
1982 ctx->aes.ccm.buf.b[i] = *aad;
1988 ctx->aes.ccm.buf.b[i] = 0;
1992 ctx->aes.ccm.kmac_param.icv.g[0] = 0;
1993 ctx->aes.ccm.kmac_param.icv.g[1] = 0;
1994 s390x_kmac(ctx->aes.ccm.nonce.b, 32, ctx->aes.ccm.fc,
1995 &ctx->aes.ccm.kmac_param);
1996 ctx->aes.ccm.blocks += 2;
1999 alen &= ~(size_t)0xf;
2001 s390x_kmac(aad, alen, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2002 ctx->aes.ccm.blocks += alen >> 4;
2006 for (i = 0; i < rem; i++)
2007 ctx->aes.ccm.kmac_param.icv.b[i] ^= aad[i];
2009 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2010 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2011 ctx->aes.ccm.kmac_param.k);
2012 ctx->aes.ccm.blocks++;
2017 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2020 static int s390x_aes_ccm(S390X_AES_CCM_CTX *ctx, const unsigned char *in,
2021 unsigned char *out, size_t len, int enc)
2024 unsigned int i, l, num;
2025 unsigned char flags;
2027 flags = ctx->aes.ccm.nonce.b[0];
2028 if (!(flags & S390X_CCM_AAD_FLAG)) {
2029 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.kmac_param.icv.b,
2030 ctx->aes.ccm.fc, ctx->aes.ccm.kmac_param.k);
2031 ctx->aes.ccm.blocks++;
2034 ctx->aes.ccm.nonce.b[0] = l;
2037 * Reconstruct length from encoded length field
2038 * and initialize it with counter value.
2041 for (i = 15 - l; i < 15; i++) {
2042 n |= ctx->aes.ccm.nonce.b[i];
2043 ctx->aes.ccm.nonce.b[i] = 0;
2046 n |= ctx->aes.ccm.nonce.b[15];
2047 ctx->aes.ccm.nonce.b[15] = 1;
2050 return -1; /* length mismatch */
2053 /* Two operations per block plus one for tag encryption */
2054 ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
2055 if (ctx->aes.ccm.blocks > (1ULL << 61))
2056 return -2; /* too much data */
2061 len &= ~(size_t)0xf;
2064 /* mac-then-encrypt */
2066 s390x_kmac(in, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2068 for (i = 0; i < rem; i++)
2069 ctx->aes.ccm.kmac_param.icv.b[i] ^= in[len + i];
2071 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2072 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2073 ctx->aes.ccm.kmac_param.k);
2076 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2077 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2078 &num, (ctr128_f)AES_ctr32_encrypt);
2080 /* decrypt-then-mac */
2081 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2082 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2083 &num, (ctr128_f)AES_ctr32_encrypt);
2086 s390x_kmac(out, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2088 for (i = 0; i < rem; i++)
2089 ctx->aes.ccm.kmac_param.icv.b[i] ^= out[len + i];
2091 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2092 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2093 ctx->aes.ccm.kmac_param.k);
2097 for (i = 15 - l; i < 16; i++)
2098 ctx->aes.ccm.nonce.b[i] = 0;
2100 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.buf.b, ctx->aes.ccm.fc,
2101 ctx->aes.ccm.kmac_param.k);
2102 ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
2103 ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
2105 ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
2110 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2111 * if successful. Otherwise -1 is returned.
2113 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2114 const unsigned char *in, size_t len)
2116 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2117 unsigned char *ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2118 unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2119 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2122 || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->aes.ccm.m))
2126 /* Set explicit iv (sequence number). */
2127 memcpy(out, buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2130 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2132 * Get explicit iv (sequence number). We already have fixed iv
2133 * (server/client_write_iv) here.
2135 memcpy(ivec + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2136 s390x_aes_ccm_setiv(cctx, ivec, len);
2138 /* Process aad (sequence number|type|version|length) */
2139 s390x_aes_ccm_aad(cctx, buf, cctx->aes.ccm.tls_aad_len);
2141 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2142 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2145 if (s390x_aes_ccm(cctx, in, out, len, enc))
2148 memcpy(out + len, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2149 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2151 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2152 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, in + len,
2157 OPENSSL_cleanse(out, len);
2163 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2166 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
2167 const unsigned char *key,
2168 const unsigned char *iv, int enc)
2170 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2171 unsigned char *ivec;
2174 if (iv == NULL && key == NULL)
2178 keylen = EVP_CIPHER_CTX_key_length(ctx);
2179 cctx->aes.ccm.fc = S390X_AES_FC(keylen);
2180 memcpy(cctx->aes.ccm.kmac_param.k, key, keylen);
2182 /* Store encoded m and l. */
2183 cctx->aes.ccm.nonce.b[0] = ((cctx->aes.ccm.l - 1) & 0x7)
2184 | (((cctx->aes.ccm.m - 2) >> 1) & 0x7) << 3;
2185 memset(cctx->aes.ccm.nonce.b + 1, 0,
2186 sizeof(cctx->aes.ccm.nonce.b));
2187 cctx->aes.ccm.blocks = 0;
2189 cctx->aes.ccm.key_set = 1;
2193 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2194 memcpy(ivec, iv, 15 - cctx->aes.ccm.l);
2196 cctx->aes.ccm.iv_set = 1;
2203 * Called from EVP layer to initialize context, process additional
2204 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2205 * plaintext or process a TLS packet, depending on context. Returns bytes
2206 * written on success. Otherwise -1 is returned.
2208 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2209 const unsigned char *in, size_t len)
2211 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2212 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2214 unsigned char *buf, *ivec;
2216 if (!cctx->aes.ccm.key_set)
2219 if (cctx->aes.ccm.tls_aad_len >= 0)
2220 return s390x_aes_ccm_tls_cipher(ctx, out, in, len);
2223 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2224 * so integrity must be checked already at Update() i.e., before
2225 * potentially corrupted data is output.
2227 if (in == NULL && out != NULL)
2230 if (!cctx->aes.ccm.iv_set)
2233 if (!enc && !cctx->aes.ccm.tag_set)
2237 /* Update(): Pass message length. */
2239 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2240 s390x_aes_ccm_setiv(cctx, ivec, len);
2242 cctx->aes.ccm.len_set = 1;
2246 /* Update(): Process aad. */
2247 if (!cctx->aes.ccm.len_set && len)
2250 s390x_aes_ccm_aad(cctx, in, len);
2254 /* Update(): Process message. */
2256 if (!cctx->aes.ccm.len_set) {
2258 * In case message length was not previously set explicitly via
2259 * Update(), set it now.
2261 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2262 s390x_aes_ccm_setiv(cctx, ivec, len);
2264 cctx->aes.ccm.len_set = 1;
2268 if (s390x_aes_ccm(cctx, in, out, len, enc))
2271 cctx->aes.ccm.tag_set = 1;
2276 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2277 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2278 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, buf,
2284 OPENSSL_cleanse(out, len);
2286 cctx->aes.ccm.iv_set = 0;
2287 cctx->aes.ccm.tag_set = 0;
2288 cctx->aes.ccm.len_set = 0;
2294 * Performs various operations on the context structure depending on control
2295 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2296 * Code is big-endian.
2298 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2300 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, c);
2301 unsigned char *buf, *iv;
2306 cctx->aes.ccm.key_set = 0;
2307 cctx->aes.ccm.iv_set = 0;
2308 cctx->aes.ccm.l = 8;
2309 cctx->aes.ccm.m = 12;
2310 cctx->aes.ccm.tag_set = 0;
2311 cctx->aes.ccm.len_set = 0;
2312 cctx->aes.ccm.tls_aad_len = -1;
2315 case EVP_CTRL_AEAD_TLS1_AAD:
2316 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2319 /* Save the aad for later use. */
2320 buf = EVP_CIPHER_CTX_buf_noconst(c);
2321 memcpy(buf, ptr, arg);
2322 cctx->aes.ccm.tls_aad_len = arg;
2324 len = buf[arg - 2] << 8 | buf[arg - 1];
2325 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2328 /* Correct length for explicit iv. */
2329 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2331 enc = EVP_CIPHER_CTX_encrypting(c);
2333 if (len < cctx->aes.ccm.m)
2336 /* Correct length for tag. */
2337 len -= cctx->aes.ccm.m;
2340 buf[arg - 2] = len >> 8;
2341 buf[arg - 1] = len & 0xff;
2343 /* Extra padding: tag appended to record. */
2344 return cctx->aes.ccm.m;
2346 case EVP_CTRL_CCM_SET_IV_FIXED:
2347 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2350 /* Copy to first part of the iv. */
2351 iv = EVP_CIPHER_CTX_iv_noconst(c);
2352 memcpy(iv, ptr, arg);
2355 case EVP_CTRL_AEAD_SET_IVLEN:
2359 case EVP_CTRL_CCM_SET_L:
2360 if (arg < 2 || arg > 8)
2363 cctx->aes.ccm.l = arg;
2366 case EVP_CTRL_AEAD_SET_TAG:
2367 if ((arg & 1) || arg < 4 || arg > 16)
2370 enc = EVP_CIPHER_CTX_encrypting(c);
2375 cctx->aes.ccm.tag_set = 1;
2376 buf = EVP_CIPHER_CTX_buf_noconst(c);
2377 memcpy(buf, ptr, arg);
2380 cctx->aes.ccm.m = arg;
2383 case EVP_CTRL_AEAD_GET_TAG:
2384 enc = EVP_CIPHER_CTX_encrypting(c);
2385 if (!enc || !cctx->aes.ccm.tag_set)
2388 if(arg < cctx->aes.ccm.m)
2391 memcpy(ptr, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2392 cctx->aes.ccm.tag_set = 0;
2393 cctx->aes.ccm.iv_set = 0;
2394 cctx->aes.ccm.len_set = 0;
2405 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2407 # ifndef OPENSSL_NO_OCB
2408 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2409 # define S390X_aes_128_ocb_CAPABLE 0
2410 # define S390X_aes_192_ocb_CAPABLE 0
2411 # define S390X_aes_256_ocb_CAPABLE 0
2413 # define s390x_aes_ocb_init_key aes_ocb_init_key
2414 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2415 const unsigned char *iv, int enc);
2416 # define s390x_aes_ocb_cipher aes_ocb_cipher
2417 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2418 const unsigned char *in, size_t len);
2419 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2420 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
2421 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2422 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
2425 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2427 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2428 nid##_##keylen##_##nmode,blocksize, \
2431 flags | EVP_CIPH_##MODE##_MODE, \
2432 s390x_aes_##mode##_init_key, \
2433 s390x_aes_##mode##_cipher, \
2435 sizeof(S390X_AES_##MODE##_CTX), \
2441 static const EVP_CIPHER aes_##keylen##_##mode = { \
2442 nid##_##keylen##_##nmode, \
2446 flags | EVP_CIPH_##MODE##_MODE, \
2448 aes_##mode##_cipher, \
2450 sizeof(EVP_AES_KEY), \
2456 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2458 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2459 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2462 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2463 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2464 nid##_##keylen##_##mode, \
2466 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2468 flags | EVP_CIPH_##MODE##_MODE, \
2469 s390x_aes_##mode##_init_key, \
2470 s390x_aes_##mode##_cipher, \
2471 s390x_aes_##mode##_cleanup, \
2472 sizeof(S390X_AES_##MODE##_CTX), \
2475 s390x_aes_##mode##_ctrl, \
2478 static const EVP_CIPHER aes_##keylen##_##mode = { \
2479 nid##_##keylen##_##mode,blocksize, \
2480 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2482 flags | EVP_CIPH_##MODE##_MODE, \
2483 aes_##mode##_init_key, \
2484 aes_##mode##_cipher, \
2485 aes_##mode##_cleanup, \
2486 sizeof(EVP_AES_##MODE##_CTX), \
2489 aes_##mode##_ctrl, \
2492 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2494 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2495 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2500 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2501 static const EVP_CIPHER aes_##keylen##_##mode = { \
2502 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2503 flags|EVP_CIPH_##MODE##_MODE, \
2505 aes_##mode##_cipher, \
2507 sizeof(EVP_AES_KEY), \
2508 NULL,NULL,NULL,NULL }; \
2509 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2510 { return &aes_##keylen##_##mode; }
2512 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2513 static const EVP_CIPHER aes_##keylen##_##mode = { \
2514 nid##_##keylen##_##mode,blocksize, \
2515 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
2516 flags|EVP_CIPH_##MODE##_MODE, \
2517 aes_##mode##_init_key, \
2518 aes_##mode##_cipher, \
2519 aes_##mode##_cleanup, \
2520 sizeof(EVP_AES_##MODE##_CTX), \
2521 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2522 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2523 { return &aes_##keylen##_##mode; }
2527 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2528 # include "arm_arch.h"
2529 # if __ARM_MAX_ARCH__>=7
2530 # if defined(BSAES_ASM)
2531 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2533 # if defined(VPAES_ASM)
2534 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2536 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2537 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2538 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2539 # define HWAES_encrypt aes_v8_encrypt
2540 # define HWAES_decrypt aes_v8_decrypt
2541 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2542 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2546 #if defined(HWAES_CAPABLE)
2547 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
2549 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
2551 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
2552 const AES_KEY *key);
2553 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
2554 const AES_KEY *key);
2555 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
2556 size_t length, const AES_KEY *key,
2557 unsigned char *ivec, const int enc);
2558 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
2559 size_t len, const AES_KEY *key,
2560 const unsigned char ivec[16]);
2561 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
2562 size_t len, const AES_KEY *key1,
2563 const AES_KEY *key2, const unsigned char iv[16]);
2564 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
2565 size_t len, const AES_KEY *key1,
2566 const AES_KEY *key2, const unsigned char iv[16]);
2569 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2570 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2571 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2572 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2573 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2574 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2575 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2576 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2578 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2579 const unsigned char *iv, int enc)
2582 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2584 mode = EVP_CIPHER_CTX_mode(ctx);
2585 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
2587 #ifdef HWAES_CAPABLE
2588 if (HWAES_CAPABLE) {
2589 ret = HWAES_set_decrypt_key(key,
2590 EVP_CIPHER_CTX_key_length(ctx) * 8,
2592 dat->block = (block128_f) HWAES_decrypt;
2593 dat->stream.cbc = NULL;
2594 # ifdef HWAES_cbc_encrypt
2595 if (mode == EVP_CIPH_CBC_MODE)
2596 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2600 #ifdef BSAES_CAPABLE
2601 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
2602 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2604 dat->block = (block128_f) AES_decrypt;
2605 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
2608 #ifdef VPAES_CAPABLE
2609 if (VPAES_CAPABLE) {
2610 ret = vpaes_set_decrypt_key(key,
2611 EVP_CIPHER_CTX_key_length(ctx) * 8,
2613 dat->block = (block128_f) vpaes_decrypt;
2614 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2615 (cbc128_f) vpaes_cbc_encrypt : NULL;
2619 ret = AES_set_decrypt_key(key,
2620 EVP_CIPHER_CTX_key_length(ctx) * 8,
2622 dat->block = (block128_f) AES_decrypt;
2623 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2624 (cbc128_f) AES_cbc_encrypt : NULL;
2627 #ifdef HWAES_CAPABLE
2628 if (HWAES_CAPABLE) {
2629 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2631 dat->block = (block128_f) HWAES_encrypt;
2632 dat->stream.cbc = NULL;
2633 # ifdef HWAES_cbc_encrypt
2634 if (mode == EVP_CIPH_CBC_MODE)
2635 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2638 # ifdef HWAES_ctr32_encrypt_blocks
2639 if (mode == EVP_CIPH_CTR_MODE)
2640 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2643 (void)0; /* terminate potentially open 'else' */
2646 #ifdef BSAES_CAPABLE
2647 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
2648 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2650 dat->block = (block128_f) AES_encrypt;
2651 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2654 #ifdef VPAES_CAPABLE
2655 if (VPAES_CAPABLE) {
2656 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2658 dat->block = (block128_f) vpaes_encrypt;
2659 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2660 (cbc128_f) vpaes_cbc_encrypt : NULL;
2664 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2666 dat->block = (block128_f) AES_encrypt;
2667 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2668 (cbc128_f) AES_cbc_encrypt : NULL;
2670 if (mode == EVP_CIPH_CTR_MODE)
2671 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
2676 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
2683 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2684 const unsigned char *in, size_t len)
2686 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2688 if (dat->stream.cbc)
2689 (*dat->stream.cbc) (in, out, len, &dat->ks,
2690 EVP_CIPHER_CTX_iv_noconst(ctx),
2691 EVP_CIPHER_CTX_encrypting(ctx));
2692 else if (EVP_CIPHER_CTX_encrypting(ctx))
2693 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
2694 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2696 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
2697 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2702 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2703 const unsigned char *in, size_t len)
2705 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
2707 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2712 for (i = 0, len -= bl; i <= len; i += bl)
2713 (*dat->block) (in + i, out + i, &dat->ks);
2718 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2719 const unsigned char *in, size_t len)
2721 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2723 int num = EVP_CIPHER_CTX_num(ctx);
2724 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
2725 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
2726 EVP_CIPHER_CTX_set_num(ctx, num);
2730 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2731 const unsigned char *in, size_t len)
2733 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2735 int num = EVP_CIPHER_CTX_num(ctx);
2736 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
2737 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2738 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2739 EVP_CIPHER_CTX_set_num(ctx, num);
2743 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2744 const unsigned char *in, size_t len)
2746 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2748 int num = EVP_CIPHER_CTX_num(ctx);
2749 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
2750 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2751 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2752 EVP_CIPHER_CTX_set_num(ctx, num);
2756 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2757 const unsigned char *in, size_t len)
2759 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2761 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
2762 int num = EVP_CIPHER_CTX_num(ctx);
2763 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
2764 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2765 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2766 EVP_CIPHER_CTX_set_num(ctx, num);
2770 while (len >= MAXBITCHUNK) {
2771 int num = EVP_CIPHER_CTX_num(ctx);
2772 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
2773 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2774 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2775 EVP_CIPHER_CTX_set_num(ctx, num);
2781 int num = EVP_CIPHER_CTX_num(ctx);
2782 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
2783 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2784 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2785 EVP_CIPHER_CTX_set_num(ctx, num);
2791 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2792 const unsigned char *in, size_t len)
2794 unsigned int num = EVP_CIPHER_CTX_num(ctx);
2795 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2797 if (dat->stream.ctr)
2798 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
2799 EVP_CIPHER_CTX_iv_noconst(ctx),
2800 EVP_CIPHER_CTX_buf_noconst(ctx),
2801 &num, dat->stream.ctr);
2803 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
2804 EVP_CIPHER_CTX_iv_noconst(ctx),
2805 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
2807 EVP_CIPHER_CTX_set_num(ctx, num);
2811 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2812 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2813 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
2815 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
2817 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2820 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
2821 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
2822 OPENSSL_free(gctx->iv);
2826 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2828 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2833 gctx->ivlen = c->cipher->iv_len;
2837 gctx->tls_aad_len = -1;
2840 case EVP_CTRL_AEAD_SET_IVLEN:
2843 /* Allocate memory for IV if needed */
2844 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
2845 if (gctx->iv != c->iv)
2846 OPENSSL_free(gctx->iv);
2847 if ((gctx->iv = OPENSSL_malloc(arg)) == NULL) {
2848 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2855 case EVP_CTRL_AEAD_SET_TAG:
2856 if (arg <= 0 || arg > 16 || c->encrypt)
2858 memcpy(c->buf, ptr, arg);
2862 case EVP_CTRL_AEAD_GET_TAG:
2863 if (arg <= 0 || arg > 16 || !c->encrypt
2864 || gctx->taglen < 0)
2866 memcpy(ptr, c->buf, arg);
2869 case EVP_CTRL_GET_IV:
2870 if (gctx->iv_gen != 1)
2872 if (gctx->ivlen != arg)
2874 memcpy(ptr, gctx->iv, arg);
2877 case EVP_CTRL_GCM_SET_IV_FIXED:
2878 /* Special case: -1 length restores whole IV */
2880 memcpy(gctx->iv, ptr, gctx->ivlen);
2885 * Fixed field must be at least 4 bytes and invocation field at least
2888 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2891 memcpy(gctx->iv, ptr, arg);
2892 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
2897 case EVP_CTRL_GCM_IV_GEN:
2898 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2900 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2901 if (arg <= 0 || arg > gctx->ivlen)
2903 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2905 * Invocation field will be at least 8 bytes in size and so no need
2906 * to check wrap around or increment more than last 8 bytes.
2908 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2912 case EVP_CTRL_GCM_SET_IV_INV:
2913 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
2915 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2916 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2920 case EVP_CTRL_AEAD_TLS1_AAD:
2921 /* Save the AAD for later use */
2922 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2924 memcpy(c->buf, ptr, arg);
2925 gctx->tls_aad_len = arg;
2926 gctx->tls_enc_records = 0;
2928 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
2929 /* Correct length for explicit IV */
2930 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2932 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2933 /* If decrypting correct for tag too */
2935 if (len < EVP_GCM_TLS_TAG_LEN)
2937 len -= EVP_GCM_TLS_TAG_LEN;
2939 c->buf[arg - 2] = len >> 8;
2940 c->buf[arg - 1] = len & 0xff;
2942 /* Extra padding: tag appended to record */
2943 return EVP_GCM_TLS_TAG_LEN;
2947 EVP_CIPHER_CTX *out = ptr;
2948 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
2949 if (gctx->gcm.key) {
2950 if (gctx->gcm.key != &gctx->ks)
2952 gctx_out->gcm.key = &gctx_out->ks;
2954 if (gctx->iv == c->iv)
2955 gctx_out->iv = out->iv;
2957 if ((gctx_out->iv = OPENSSL_malloc(gctx->ivlen)) == NULL) {
2958 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2961 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2972 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2973 const unsigned char *iv, int enc)
2975 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
2980 #ifdef HWAES_CAPABLE
2981 if (HWAES_CAPABLE) {
2982 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
2983 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2984 (block128_f) HWAES_encrypt);
2985 # ifdef HWAES_ctr32_encrypt_blocks
2986 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2993 #ifdef BSAES_CAPABLE
2994 if (BSAES_CAPABLE) {
2995 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
2996 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2997 (block128_f) AES_encrypt);
2998 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
3002 #ifdef VPAES_CAPABLE
3003 if (VPAES_CAPABLE) {
3004 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3005 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3006 (block128_f) vpaes_encrypt);
3011 (void)0; /* terminate potentially open 'else' */
3013 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3014 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3015 (block128_f) AES_encrypt);
3017 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
3024 * If we have an iv can set it directly, otherwise use saved IV.
3026 if (iv == NULL && gctx->iv_set)
3029 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3034 /* If key set use IV, otherwise copy */
3036 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3038 memcpy(gctx->iv, iv, gctx->ivlen);
3046 * Handle TLS GCM packet format. This consists of the last portion of the IV
3047 * followed by the payload and finally the tag. On encrypt generate IV,
3048 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3052 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3053 const unsigned char *in, size_t len)
3055 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3057 /* Encrypt/decrypt must be performed in place */
3059 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
3063 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3064 * Requirements from SP 800-38D". The requirements is for one party to the
3065 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3068 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
3069 EVPerr(EVP_F_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
3074 * Set IV from start of buffer or generate IV and write to start of
3077 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? EVP_CTRL_GCM_IV_GEN
3078 : EVP_CTRL_GCM_SET_IV_INV,
3079 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
3082 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
3084 /* Fix buffer and length to point to payload */
3085 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3086 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3087 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3089 /* Encrypt payload */
3092 #if defined(AES_GCM_ASM)
3093 if (len >= 32 && AES_GCM_ASM(gctx)) {
3094 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3097 bulk = AES_gcm_encrypt(in, out, len,
3099 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3100 gctx->gcm.len.u[1] += bulk;
3103 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3106 len - bulk, gctx->ctr))
3110 #if defined(AES_GCM_ASM2)
3111 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3112 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3115 bulk = AES_gcm_encrypt(in, out, len,
3117 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3118 gctx->gcm.len.u[1] += bulk;
3121 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3122 in + bulk, out + bulk, len - bulk))
3126 /* Finally write tag */
3127 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
3128 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3133 #if defined(AES_GCM_ASM)
3134 if (len >= 16 && AES_GCM_ASM(gctx)) {
3135 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3138 bulk = AES_gcm_decrypt(in, out, len,
3140 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3141 gctx->gcm.len.u[1] += bulk;
3144 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3147 len - bulk, gctx->ctr))
3151 #if defined(AES_GCM_ASM2)
3152 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3153 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3156 bulk = AES_gcm_decrypt(in, out, len,
3158 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3159 gctx->gcm.len.u[1] += bulk;
3162 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3163 in + bulk, out + bulk, len - bulk))
3167 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
3168 /* If tag mismatch wipe buffer */
3169 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
3170 OPENSSL_cleanse(out, len);
3178 gctx->tls_aad_len = -1;
3182 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3183 const unsigned char *in, size_t len)
3185 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3186 /* If not set up, return error */
3190 if (gctx->tls_aad_len >= 0)
3191 return aes_gcm_tls_cipher(ctx, out, in, len);
3197 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
3199 } else if (ctx->encrypt) {
3202 #if defined(AES_GCM_ASM)
3203 if (len >= 32 && AES_GCM_ASM(gctx)) {
3204 size_t res = (16 - gctx->gcm.mres) % 16;
3206 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3209 bulk = AES_gcm_encrypt(in + res,
3210 out + res, len - res,
3211 gctx->gcm.key, gctx->gcm.Yi.c,
3213 gctx->gcm.len.u[1] += bulk;
3217 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3220 len - bulk, gctx->ctr))
3224 #if defined(AES_GCM_ASM2)
3225 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3226 size_t res = (16 - gctx->gcm.mres) % 16;
3228 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3231 bulk = AES_gcm_encrypt(in + res,
3232 out + res, len - res,
3233 gctx->gcm.key, gctx->gcm.Yi.c,
3235 gctx->gcm.len.u[1] += bulk;
3239 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3240 in + bulk, out + bulk, len - bulk))
3246 #if defined(AES_GCM_ASM)
3247 if (len >= 16 && AES_GCM_ASM(gctx)) {
3248 size_t res = (16 - gctx->gcm.mres) % 16;
3250 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3253 bulk = AES_gcm_decrypt(in + res,
3254 out + res, len - res,
3256 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3257 gctx->gcm.len.u[1] += bulk;
3261 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3264 len - bulk, gctx->ctr))
3268 #if defined(AES_GCM_ASM2)
3269 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3270 size_t res = (16 - gctx->gcm.mres) % 16;
3272 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3275 bulk = AES_gcm_decrypt(in + res,
3276 out + res, len - res,
3278 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3279 gctx->gcm.len.u[1] += bulk;
3283 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3284 in + bulk, out + bulk, len - bulk))
3290 if (!ctx->encrypt) {
3291 if (gctx->taglen < 0)
3293 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
3298 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
3300 /* Don't reuse the IV */
3307 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3308 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3309 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3310 | EVP_CIPH_CUSTOM_COPY)
3312 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
3313 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3314 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
3315 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3316 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
3317 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3319 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3321 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
3322 if (type == EVP_CTRL_COPY) {
3323 EVP_CIPHER_CTX *out = ptr;
3324 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
3325 if (xctx->xts.key1) {
3326 if (xctx->xts.key1 != &xctx->ks1)
3328 xctx_out->xts.key1 = &xctx_out->ks1;
3330 if (xctx->xts.key2) {
3331 if (xctx->xts.key2 != &xctx->ks2)
3333 xctx_out->xts.key2 = &xctx_out->ks2;
3336 } else if (type != EVP_CTRL_INIT)
3338 /* key1 and key2 are used as an indicator both key and IV are set */
3339 xctx->xts.key1 = NULL;
3340 xctx->xts.key2 = NULL;
3344 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3345 const unsigned char *iv, int enc)
3347 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3354 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
3356 xctx->stream = NULL;
3358 /* key_len is two AES keys */
3359 #ifdef HWAES_CAPABLE
3360 if (HWAES_CAPABLE) {
3362 HWAES_set_encrypt_key(key,
3363 EVP_CIPHER_CTX_key_length(ctx) * 4,
3365 xctx->xts.block1 = (block128_f) HWAES_encrypt;
3366 # ifdef HWAES_xts_encrypt
3367 xctx->stream = HWAES_xts_encrypt;
3370 HWAES_set_decrypt_key(key,
3371 EVP_CIPHER_CTX_key_length(ctx) * 4,
3373 xctx->xts.block1 = (block128_f) HWAES_decrypt;
3374 # ifdef HWAES_xts_decrypt
3375 xctx->stream = HWAES_xts_decrypt;
3379 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3380 EVP_CIPHER_CTX_key_length(ctx) * 4,
3382 xctx->xts.block2 = (block128_f) HWAES_encrypt;
3384 xctx->xts.key1 = &xctx->ks1;
3388 #ifdef BSAES_CAPABLE
3390 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
3393 #ifdef VPAES_CAPABLE
3394 if (VPAES_CAPABLE) {
3396 vpaes_set_encrypt_key(key,
3397 EVP_CIPHER_CTX_key_length(ctx) * 4,
3399 xctx->xts.block1 = (block128_f) vpaes_encrypt;
3401 vpaes_set_decrypt_key(key,
3402 EVP_CIPHER_CTX_key_length(ctx) * 4,
3404 xctx->xts.block1 = (block128_f) vpaes_decrypt;
3407 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3408 EVP_CIPHER_CTX_key_length(ctx) * 4,
3410 xctx->xts.block2 = (block128_f) vpaes_encrypt;
3412 xctx->xts.key1 = &xctx->ks1;
3416 (void)0; /* terminate potentially open 'else' */
3419 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3421 xctx->xts.block1 = (block128_f) AES_encrypt;
3423 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3425 xctx->xts.block1 = (block128_f) AES_decrypt;
3428 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3429 EVP_CIPHER_CTX_key_length(ctx) * 4,
3431 xctx->xts.block2 = (block128_f) AES_encrypt;
3433 xctx->xts.key1 = &xctx->ks1;
3437 xctx->xts.key2 = &xctx->ks2;
3438 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
3444 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3445 const unsigned char *in, size_t len)
3447 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3449 if (xctx->xts.key1 == NULL
3450 || xctx->xts.key2 == NULL
3453 || len < AES_BLOCK_SIZE)
3457 * Verify that the two keys are different.
3459 * This addresses the vulnerability described in Rogaway's September 2004
3460 * paper (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf):
3461 * "Efficient Instantiations of Tweakable Blockciphers and Refinements
3462 * to Modes OCB and PMAC".
3464 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states that:
3465 * "The check for Key_1 != Key_2 shall be done at any place BEFORE
3466 * using the keys in the XTS-AES algorithm to process data with them."
3468 if (CRYPTO_memcmp(xctx->xts.key1, xctx->xts.key2,
3469 EVP_CIPHER_CTX_key_length(ctx) / 2) == 0)
3473 (*xctx->stream) (in, out, len,
3474 xctx->xts.key1, xctx->xts.key2,
3475 EVP_CIPHER_CTX_iv_noconst(ctx));
3476 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
3478 EVP_CIPHER_CTX_encrypting(ctx)))
3483 #define aes_xts_cleanup NULL
3485 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3486 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3487 | EVP_CIPH_CUSTOM_COPY)
3489 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
3490 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
3492 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3494 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
3503 cctx->tls_aad_len = -1;
3506 case EVP_CTRL_AEAD_TLS1_AAD:
3507 /* Save the AAD for later use */
3508 if (arg != EVP_AEAD_TLS1_AAD_LEN)
3510 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3511 cctx->tls_aad_len = arg;
3514 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
3515 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
3516 /* Correct length for explicit IV */
3517 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
3519 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
3520 /* If decrypting correct for tag too */
3521 if (!EVP_CIPHER_CTX_encrypting(c)) {
3526 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
3527 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
3529 /* Extra padding: tag appended to record */
3532 case EVP_CTRL_CCM_SET_IV_FIXED:
3533 /* Sanity check length */
3534 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
3536 /* Just copy to first part of IV */
3537 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
3540 case EVP_CTRL_AEAD_SET_IVLEN:
3543 case EVP_CTRL_CCM_SET_L:
3544 if (arg < 2 || arg > 8)
3549 case EVP_CTRL_AEAD_SET_TAG:
3550 if ((arg & 1) || arg < 4 || arg > 16)
3552 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
3556 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3561 case EVP_CTRL_AEAD_GET_TAG:
3562 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
3564 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
3573 EVP_CIPHER_CTX *out = ptr;
3574 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
3575 if (cctx->ccm.key) {
3576 if (cctx->ccm.key != &cctx->ks)
3578 cctx_out->ccm.key = &cctx_out->ks;
3589 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3590 const unsigned char *iv, int enc)
3592 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3597 #ifdef HWAES_CAPABLE
3598 if (HWAES_CAPABLE) {
3599 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3602 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3603 &cctx->ks, (block128_f) HWAES_encrypt);
3609 #ifdef VPAES_CAPABLE
3610 if (VPAES_CAPABLE) {
3611 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3613 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3614 &cctx->ks, (block128_f) vpaes_encrypt);
3620 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3622 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3623 &cctx->ks, (block128_f) AES_encrypt);
3628 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
3634 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3635 const unsigned char *in, size_t len)
3637 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3638 CCM128_CONTEXT *ccm = &cctx->ccm;
3639 /* Encrypt/decrypt must be performed in place */
3640 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
3642 /* If encrypting set explicit IV from sequence number (start of AAD) */
3643 if (EVP_CIPHER_CTX_encrypting(ctx))
3644 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
3645 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3646 /* Get rest of IV from explicit IV */
3647 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
3648 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3649 /* Correct length value */
3650 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3651 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
3655 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
3656 /* Fix buffer to point to payload */
3657 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3658 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3659 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3660 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3662 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3664 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
3666 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3668 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3670 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3671 unsigned char tag[16];
3672 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3673 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
3677 OPENSSL_cleanse(out, len);
3682 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3683 const unsigned char *in, size_t len)
3685 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3686 CCM128_CONTEXT *ccm = &cctx->ccm;
3687 /* If not set up, return error */
3691 if (cctx->tls_aad_len >= 0)
3692 return aes_ccm_tls_cipher(ctx, out, in, len);
3694 /* EVP_*Final() doesn't return any data */
3695 if (in == NULL && out != NULL)
3701 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
3705 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3711 /* If have AAD need message length */
3712 if (!cctx->len_set && len)
3714 CRYPTO_ccm128_aad(ccm, in, len);
3717 /* If not set length yet do it */
3718 if (!cctx->len_set) {
3719 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3724 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3725 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3727 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3733 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3735 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3736 unsigned char tag[16];
3737 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3738 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
3744 OPENSSL_cleanse(out, len);
3752 #define aes_ccm_cleanup NULL
3754 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
3755 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3756 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
3757 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3758 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
3759 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3766 /* Indicates if IV has been set */
3770 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3771 const unsigned char *iv, int enc)
3773 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3777 if (EVP_CIPHER_CTX_encrypting(ctx))
3778 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3781 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3787 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
3788 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
3793 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3794 const unsigned char *in, size_t inlen)
3796 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3798 /* AES wrap with padding has IV length of 4, without padding 8 */
3799 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
3800 /* No final operation so always return zero length */
3803 /* Input length must always be non-zero */
3806 /* If decrypting need at least 16 bytes and multiple of 8 */
3807 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
3809 /* If not padding input must be multiple of 8 */
3810 if (!pad && inlen & 0x7)
3812 if (is_partially_overlapping(out, in, inlen)) {
3813 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3817 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3818 /* If padding round up to multiple of 8 */
3820 inlen = (inlen + 7) / 8 * 8;
3825 * If not padding output will be exactly 8 bytes smaller than
3826 * input. If padding it will be at least 8 bytes smaller but we
3827 * don't know how much.
3833 if (EVP_CIPHER_CTX_encrypting(ctx))
3834 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3836 (block128_f) AES_encrypt);
3838 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3840 (block128_f) AES_decrypt);
3842 if (EVP_CIPHER_CTX_encrypting(ctx))
3843 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3844 out, in, inlen, (block128_f) AES_encrypt);
3846 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3847 out, in, inlen, (block128_f) AES_decrypt);
3849 return rv ? (int)rv : -1;
3852 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3853 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3854 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3856 static const EVP_CIPHER aes_128_wrap = {
3858 8, 16, 8, WRAP_FLAGS,
3859 aes_wrap_init_key, aes_wrap_cipher,
3861 sizeof(EVP_AES_WRAP_CTX),
3862 NULL, NULL, NULL, NULL
3865 const EVP_CIPHER *EVP_aes_128_wrap(void)
3867 return &aes_128_wrap;
3870 static const EVP_CIPHER aes_192_wrap = {
3872 8, 24, 8, WRAP_FLAGS,
3873 aes_wrap_init_key, aes_wrap_cipher,
3875 sizeof(EVP_AES_WRAP_CTX),
3876 NULL, NULL, NULL, NULL
3879 const EVP_CIPHER *EVP_aes_192_wrap(void)
3881 return &aes_192_wrap;
3884 static const EVP_CIPHER aes_256_wrap = {
3886 8, 32, 8, WRAP_FLAGS,
3887 aes_wrap_init_key, aes_wrap_cipher,
3889 sizeof(EVP_AES_WRAP_CTX),
3890 NULL, NULL, NULL, NULL
3893 const EVP_CIPHER *EVP_aes_256_wrap(void)
3895 return &aes_256_wrap;
3898 static const EVP_CIPHER aes_128_wrap_pad = {
3899 NID_id_aes128_wrap_pad,
3900 8, 16, 4, WRAP_FLAGS,
3901 aes_wrap_init_key, aes_wrap_cipher,
3903 sizeof(EVP_AES_WRAP_CTX),
3904 NULL, NULL, NULL, NULL
3907 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
3909 return &aes_128_wrap_pad;
3912 static const EVP_CIPHER aes_192_wrap_pad = {
3913 NID_id_aes192_wrap_pad,
3914 8, 24, 4, WRAP_FLAGS,
3915 aes_wrap_init_key, aes_wrap_cipher,
3917 sizeof(EVP_AES_WRAP_CTX),
3918 NULL, NULL, NULL, NULL
3921 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
3923 return &aes_192_wrap_pad;
3926 static const EVP_CIPHER aes_256_wrap_pad = {
3927 NID_id_aes256_wrap_pad,
3928 8, 32, 4, WRAP_FLAGS,
3929 aes_wrap_init_key, aes_wrap_cipher,
3931 sizeof(EVP_AES_WRAP_CTX),
3932 NULL, NULL, NULL, NULL
3935 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
3937 return &aes_256_wrap_pad;
3940 #ifndef OPENSSL_NO_OCB
3941 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3943 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
3944 EVP_CIPHER_CTX *newc;
3945 EVP_AES_OCB_CTX *new_octx;
3951 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
3952 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
3954 octx->data_buf_len = 0;
3955 octx->aad_buf_len = 0;
3958 case EVP_CTRL_AEAD_SET_IVLEN:
3959 /* IV len must be 1 to 15 */
3960 if (arg <= 0 || arg > 15)
3966 case EVP_CTRL_AEAD_SET_TAG:
3968 /* Tag len must be 0 to 16 */
3969 if (arg < 0 || arg > 16)
3975 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
3977 memcpy(octx->tag, ptr, arg);
3980 case EVP_CTRL_AEAD_GET_TAG:
3981 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
3984 memcpy(ptr, octx->tag, arg);
3988 newc = (EVP_CIPHER_CTX *)ptr;
3989 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
3990 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
3991 &new_octx->ksenc.ks,
3992 &new_octx->ksdec.ks);
4000 # ifdef HWAES_CAPABLE
4001 # ifdef HWAES_ocb_encrypt
4002 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
4003 size_t blocks, const void *key,
4004 size_t start_block_num,
4005 unsigned char offset_i[16],
4006 const unsigned char L_[][16],
4007 unsigned char checksum[16]);
4009 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
4011 # ifdef HWAES_ocb_decrypt
4012 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
4013 size_t blocks, const void *key,
4014 size_t start_block_num,
4015 unsigned char offset_i[16],
4016 const unsigned char L_[][16],
4017 unsigned char checksum[16]);
4019 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
4023 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
4024 const unsigned char *iv, int enc)
4026 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4032 * We set both the encrypt and decrypt key here because decrypt
4033 * needs both. We could possibly optimise to remove setting the
4034 * decrypt for an encryption operation.
4036 # ifdef HWAES_CAPABLE
4037 if (HWAES_CAPABLE) {
4038 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4040 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4042 if (!CRYPTO_ocb128_init(&octx->ocb,
4043 &octx->ksenc.ks, &octx->ksdec.ks,
4044 (block128_f) HWAES_encrypt,
4045 (block128_f) HWAES_decrypt,
4046 enc ? HWAES_ocb_encrypt
4047 : HWAES_ocb_decrypt))
4052 # ifdef VPAES_CAPABLE
4053 if (VPAES_CAPABLE) {
4054 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4056 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4058 if (!CRYPTO_ocb128_init(&octx->ocb,
4059 &octx->ksenc.ks, &octx->ksdec.ks,
4060 (block128_f) vpaes_encrypt,
4061 (block128_f) vpaes_decrypt,
4067 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4069 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4071 if (!CRYPTO_ocb128_init(&octx->ocb,
4072 &octx->ksenc.ks, &octx->ksdec.ks,
4073 (block128_f) AES_encrypt,
4074 (block128_f) AES_decrypt,
4081 * If we have an iv we can set it directly, otherwise use saved IV.
4083 if (iv == NULL && octx->iv_set)
4086 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
4093 /* If key set use IV, otherwise copy */
4095 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
4097 memcpy(octx->iv, iv, octx->ivlen);
4103 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4104 const unsigned char *in, size_t len)
4108 int written_len = 0;
4109 size_t trailing_len;
4110 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4112 /* If IV or Key not set then return error */
4121 * Need to ensure we are only passing full blocks to low level OCB
4122 * routines. We do it here rather than in EVP_EncryptUpdate/
4123 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4124 * and those routines don't support that
4127 /* Are we dealing with AAD or normal data here? */
4129 buf = octx->aad_buf;
4130 buf_len = &(octx->aad_buf_len);
4132 buf = octx->data_buf;
4133 buf_len = &(octx->data_buf_len);
4135 if (is_partially_overlapping(out + *buf_len, in, len)) {
4136 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
4142 * If we've got a partially filled buffer from a previous call then
4143 * use that data first
4146 unsigned int remaining;
4148 remaining = AES_BLOCK_SIZE - (*buf_len);
4149 if (remaining > len) {
4150 memcpy(buf + (*buf_len), in, len);
4154 memcpy(buf + (*buf_len), in, remaining);
4157 * If we get here we've filled the buffer, so process it
4162 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
4164 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4165 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
4169 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
4173 written_len = AES_BLOCK_SIZE;
4176 out += AES_BLOCK_SIZE;
4179 /* Do we have a partial block to handle at the end? */
4180 trailing_len = len % AES_BLOCK_SIZE;
4183 * If we've got some full blocks to handle, then process these first
4185 if (len != trailing_len) {
4187 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
4189 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4190 if (!CRYPTO_ocb128_encrypt
4191 (&octx->ocb, in, out, len - trailing_len))
4194 if (!CRYPTO_ocb128_decrypt
4195 (&octx->ocb, in, out, len - trailing_len))
4198 written_len += len - trailing_len;
4199 in += len - trailing_len;
4202 /* Handle any trailing partial block */
4203 if (trailing_len > 0) {
4204 memcpy(buf, in, trailing_len);
4205 *buf_len = trailing_len;
4211 * First of all empty the buffer of any partial block that we might
4212 * have been provided - both for data and AAD
4214 if (octx->data_buf_len > 0) {
4215 if (EVP_CIPHER_CTX_encrypting(ctx)) {
4216 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
4217 octx->data_buf_len))
4220 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
4221 octx->data_buf_len))
4224 written_len = octx->data_buf_len;
4225 octx->data_buf_len = 0;
4227 if (octx->aad_buf_len > 0) {
4228 if (!CRYPTO_ocb128_aad
4229 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
4231 octx->aad_buf_len = 0;
4233 /* If decrypting then verify */
4234 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
4235 if (octx->taglen < 0)
4237 if (CRYPTO_ocb128_finish(&octx->ocb,
4238 octx->tag, octx->taglen) != 0)
4243 /* If encrypting then just get the tag */
4244 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
4246 /* Don't reuse the IV */
4252 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
4254 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
4255 CRYPTO_ocb128_cleanup(&octx->ocb);
4259 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
4260 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4261 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
4262 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4263 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
4264 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4265 #endif /* OPENSSL_NO_OCB */