2 * Copyright 2001-2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #include <openssl/crypto.h>
12 #include <openssl/evp.h>
13 #include <openssl/err.h>
16 #include <openssl/aes.h>
17 #include "crypto/evp.h"
18 #include "modes_local.h"
19 #include <openssl/rand.h>
20 #include "evp_local.h"
38 } ks; /* AES key schedule to use */
39 int key_set; /* Set if key initialised */
40 int iv_set; /* Set if an iv is set */
42 unsigned char *iv; /* Temporary IV store */
43 int ivlen; /* IV length */
45 int iv_gen; /* It is OK to generate IVs */
46 int tls_aad_len; /* TLS AAD length */
54 } ks1, ks2; /* AES key schedules to use */
56 void (*stream) (const unsigned char *in,
57 unsigned char *out, size_t length,
58 const AES_KEY *key1, const AES_KEY *key2,
59 const unsigned char iv[16]);
66 } ks; /* AES key schedule to use */
67 int key_set; /* Set if key initialised */
68 int iv_set; /* Set if an iv is set */
69 int tag_set; /* Set if tag is valid */
70 int len_set; /* Set if message length set */
71 int L, M; /* L and M parameters from RFC3610 */
72 int tls_aad_len; /* TLS AAD length */
77 #ifndef OPENSSL_NO_OCB
82 } ksenc; /* AES key schedule to use for encryption */
86 } ksdec; /* AES key schedule to use for decryption */
87 int key_set; /* Set if key initialised */
88 int iv_set; /* Set if an iv is set */
90 unsigned char *iv; /* Temporary IV store */
91 unsigned char tag[16];
92 unsigned char data_buf[16]; /* Store partial data blocks */
93 unsigned char aad_buf[16]; /* Store partial AAD blocks */
96 int ivlen; /* IV length */
101 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
104 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
106 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
109 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
111 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
114 void vpaes_cbc_encrypt(const unsigned char *in,
117 const AES_KEY *key, unsigned char *ivec, int enc);
120 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
121 size_t length, const AES_KEY *key,
122 unsigned char ivec[16], int enc);
123 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
124 size_t len, const AES_KEY *key,
125 const unsigned char ivec[16]);
126 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
127 size_t len, const AES_KEY *key1,
128 const AES_KEY *key2, const unsigned char iv[16]);
129 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
130 size_t len, const AES_KEY *key1,
131 const AES_KEY *key2, const unsigned char iv[16]);
134 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
135 size_t blocks, const AES_KEY *key,
136 const unsigned char ivec[AES_BLOCK_SIZE]);
139 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
140 const AES_KEY *key1, const AES_KEY *key2,
141 const unsigned char iv[16]);
142 void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
143 const AES_KEY *key1, const AES_KEY *key2,
144 const unsigned char iv[16]);
147 /* increment counter (64-bit int) by 1 */
148 static void ctr64_inc(unsigned char *counter)
163 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
164 # include "ppc_arch.h"
166 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
168 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
169 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
170 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
171 # define HWAES_encrypt aes_p8_encrypt
172 # define HWAES_decrypt aes_p8_decrypt
173 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
174 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
175 # define HWAES_xts_encrypt aes_p8_xts_encrypt
176 # define HWAES_xts_decrypt aes_p8_xts_decrypt
179 #if defined(OPENSSL_CPUID_OBJ) && ( \
180 ((defined(__i386) || defined(__i386__) || \
181 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
182 defined(__x86_64) || defined(__x86_64__) || \
183 defined(_M_AMD64) || defined(_M_X64) )
185 extern unsigned int OPENSSL_ia32cap_P[];
188 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
191 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
196 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
198 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
200 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
203 void aesni_encrypt(const unsigned char *in, unsigned char *out,
205 void aesni_decrypt(const unsigned char *in, unsigned char *out,
208 void aesni_ecb_encrypt(const unsigned char *in,
210 size_t length, const AES_KEY *key, int enc);
211 void aesni_cbc_encrypt(const unsigned char *in,
214 const AES_KEY *key, unsigned char *ivec, int enc);
216 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
219 const void *key, const unsigned char *ivec);
221 void aesni_xts_encrypt(const unsigned char *in,
224 const AES_KEY *key1, const AES_KEY *key2,
225 const unsigned char iv[16]);
227 void aesni_xts_decrypt(const unsigned char *in,
230 const AES_KEY *key1, const AES_KEY *key2,
231 const unsigned char iv[16]);
233 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
237 const unsigned char ivec[16],
238 unsigned char cmac[16]);
240 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
244 const unsigned char ivec[16],
245 unsigned char cmac[16]);
247 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
248 size_t aesni_gcm_encrypt(const unsigned char *in,
251 const void *key, unsigned char ivec[16], u64 *Xi);
252 # define AES_gcm_encrypt aesni_gcm_encrypt
253 size_t aesni_gcm_decrypt(const unsigned char *in,
256 const void *key, unsigned char ivec[16], u64 *Xi);
257 # define AES_gcm_decrypt aesni_gcm_decrypt
258 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
260 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
261 gctx->gcm.ghash==gcm_ghash_avx)
262 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
263 gctx->gcm.ghash==gcm_ghash_avx)
264 # undef AES_GCM_ASM2 /* minor size optimization */
267 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
268 const unsigned char *iv, int enc)
271 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
273 mode = EVP_CIPHER_CTX_mode(ctx);
274 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
276 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
278 dat->block = (block128_f) aesni_decrypt;
279 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
280 (cbc128_f) aesni_cbc_encrypt : NULL;
282 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
284 dat->block = (block128_f) aesni_encrypt;
285 if (mode == EVP_CIPH_CBC_MODE)
286 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
287 else if (mode == EVP_CIPH_CTR_MODE)
288 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
290 dat->stream.cbc = NULL;
294 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
301 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
302 const unsigned char *in, size_t len)
304 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
305 EVP_CIPHER_CTX_iv_noconst(ctx),
306 EVP_CIPHER_CTX_encrypting(ctx));
311 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
312 const unsigned char *in, size_t len)
314 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
319 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
320 EVP_CIPHER_CTX_encrypting(ctx));
325 # define aesni_ofb_cipher aes_ofb_cipher
326 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
327 const unsigned char *in, size_t len);
329 # define aesni_cfb_cipher aes_cfb_cipher
330 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
331 const unsigned char *in, size_t len);
333 # define aesni_cfb8_cipher aes_cfb8_cipher
334 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
335 const unsigned char *in, size_t len);
337 # define aesni_cfb1_cipher aes_cfb1_cipher
338 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
339 const unsigned char *in, size_t len);
341 # define aesni_ctr_cipher aes_ctr_cipher
342 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
343 const unsigned char *in, size_t len);
345 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
346 const unsigned char *iv, int enc)
348 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
352 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
354 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
355 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
357 * If we have an iv can set it directly, otherwise use saved IV.
359 if (iv == NULL && gctx->iv_set)
362 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
367 /* If key set use IV, otherwise copy */
369 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
371 memcpy(gctx->iv, iv, gctx->ivlen);
378 # define aesni_gcm_cipher aes_gcm_cipher
379 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
380 const unsigned char *in, size_t len);
382 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
383 const unsigned char *iv, int enc)
385 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
391 /* The key is two half length keys in reality */
392 const int bytes = EVP_CIPHER_CTX_key_length(ctx) / 2;
395 * Verify that the two keys are different.
397 * This addresses Rogaway's vulnerability.
398 * See comment in aes_xts_init_key() below.
400 if (enc && CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
401 EVPerr(EVP_F_AESNI_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
405 /* key_len is two AES keys */
407 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
409 xctx->xts.block1 = (block128_f) aesni_encrypt;
410 xctx->stream = aesni_xts_encrypt;
412 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
414 xctx->xts.block1 = (block128_f) aesni_decrypt;
415 xctx->stream = aesni_xts_decrypt;
418 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
419 EVP_CIPHER_CTX_key_length(ctx) * 4,
421 xctx->xts.block2 = (block128_f) aesni_encrypt;
423 xctx->xts.key1 = &xctx->ks1;
427 xctx->xts.key2 = &xctx->ks2;
428 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
434 # define aesni_xts_cipher aes_xts_cipher
435 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
436 const unsigned char *in, size_t len);
438 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
439 const unsigned char *iv, int enc)
441 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
445 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
447 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
448 &cctx->ks, (block128_f) aesni_encrypt);
449 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
450 (ccm128_f) aesni_ccm64_decrypt_blocks;
454 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
460 # define aesni_ccm_cipher aes_ccm_cipher
461 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
462 const unsigned char *in, size_t len);
464 # ifndef OPENSSL_NO_OCB
465 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
466 size_t blocks, const void *key,
467 size_t start_block_num,
468 unsigned char offset_i[16],
469 const unsigned char L_[][16],
470 unsigned char checksum[16]);
471 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
472 size_t blocks, const void *key,
473 size_t start_block_num,
474 unsigned char offset_i[16],
475 const unsigned char L_[][16],
476 unsigned char checksum[16]);
478 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
479 const unsigned char *iv, int enc)
481 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
487 * We set both the encrypt and decrypt key here because decrypt
488 * needs both. We could possibly optimise to remove setting the
489 * decrypt for an encryption operation.
491 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
493 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
495 if (!CRYPTO_ocb128_init(&octx->ocb,
496 &octx->ksenc.ks, &octx->ksdec.ks,
497 (block128_f) aesni_encrypt,
498 (block128_f) aesni_decrypt,
499 enc ? aesni_ocb_encrypt
500 : aesni_ocb_decrypt))
506 * If we have an iv we can set it directly, otherwise use saved IV.
508 if (iv == NULL && octx->iv_set)
511 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
518 /* If key set use IV, otherwise copy */
520 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
522 memcpy(octx->iv, iv, octx->ivlen);
528 # define aesni_ocb_cipher aes_ocb_cipher
529 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
530 const unsigned char *in, size_t len);
531 # endif /* OPENSSL_NO_OCB */
533 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
534 static const EVP_CIPHER aesni_##keylen##_##mode = { \
535 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
536 flags|EVP_CIPH_##MODE##_MODE, \
538 aesni_##mode##_cipher, \
540 sizeof(EVP_AES_KEY), \
541 NULL,NULL,NULL,NULL }; \
542 static const EVP_CIPHER aes_##keylen##_##mode = { \
543 nid##_##keylen##_##nmode,blocksize, \
545 flags|EVP_CIPH_##MODE##_MODE, \
547 aes_##mode##_cipher, \
549 sizeof(EVP_AES_KEY), \
550 NULL,NULL,NULL,NULL }; \
551 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
552 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
554 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
555 static const EVP_CIPHER aesni_##keylen##_##mode = { \
556 nid##_##keylen##_##mode,blocksize, \
557 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
558 flags|EVP_CIPH_##MODE##_MODE, \
559 aesni_##mode##_init_key, \
560 aesni_##mode##_cipher, \
561 aes_##mode##_cleanup, \
562 sizeof(EVP_AES_##MODE##_CTX), \
563 NULL,NULL,aes_##mode##_ctrl,NULL }; \
564 static const EVP_CIPHER aes_##keylen##_##mode = { \
565 nid##_##keylen##_##mode,blocksize, \
566 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
567 flags|EVP_CIPH_##MODE##_MODE, \
568 aes_##mode##_init_key, \
569 aes_##mode##_cipher, \
570 aes_##mode##_cleanup, \
571 sizeof(EVP_AES_##MODE##_CTX), \
572 NULL,NULL,aes_##mode##_ctrl,NULL }; \
573 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
574 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
576 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
578 # include "sparc_arch.h"
580 extern unsigned int OPENSSL_sparcv9cap_P[];
583 * Initial Fujitsu SPARC64 X support
585 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
586 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
587 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
588 # define HWAES_encrypt aes_fx_encrypt
589 # define HWAES_decrypt aes_fx_decrypt
590 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
591 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
593 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
595 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
596 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
597 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
599 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
602 * Key-length specific subroutines were chosen for following reason.
603 * Each SPARC T4 core can execute up to 8 threads which share core's
604 * resources. Loading as much key material to registers allows to
605 * minimize references to shared memory interface, as well as amount
606 * of instructions in inner loops [much needed on T4]. But then having
607 * non-key-length specific routines would require conditional branches
608 * either in inner loops or on subroutines' entries. Former is hardly
609 * acceptable, while latter means code size increase to size occupied
610 * by multiple key-length specific subroutines, so why fight?
612 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
613 size_t len, const AES_KEY *key,
614 unsigned char *ivec);
615 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
616 size_t len, const AES_KEY *key,
617 unsigned char *ivec);
618 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
619 size_t len, const AES_KEY *key,
620 unsigned char *ivec);
621 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
622 size_t len, const AES_KEY *key,
623 unsigned char *ivec);
624 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
625 size_t len, const AES_KEY *key,
626 unsigned char *ivec);
627 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
628 size_t len, const AES_KEY *key,
629 unsigned char *ivec);
630 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
631 size_t blocks, const AES_KEY *key,
632 unsigned char *ivec);
633 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
634 size_t blocks, const AES_KEY *key,
635 unsigned char *ivec);
636 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
637 size_t blocks, const AES_KEY *key,
638 unsigned char *ivec);
639 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
640 size_t blocks, const AES_KEY *key1,
641 const AES_KEY *key2, const unsigned char *ivec);
642 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
643 size_t blocks, const AES_KEY *key1,
644 const AES_KEY *key2, const unsigned char *ivec);
645 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
646 size_t blocks, const AES_KEY *key1,
647 const AES_KEY *key2, const unsigned char *ivec);
648 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
649 size_t blocks, const AES_KEY *key1,
650 const AES_KEY *key2, const unsigned char *ivec);
652 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
653 const unsigned char *iv, int enc)
656 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
658 mode = EVP_CIPHER_CTX_mode(ctx);
659 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
660 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
663 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
664 dat->block = (block128_f) aes_t4_decrypt;
667 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
668 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
671 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
672 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
675 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
676 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
683 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
684 dat->block = (block128_f) aes_t4_encrypt;
687 if (mode == EVP_CIPH_CBC_MODE)
688 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
689 else if (mode == EVP_CIPH_CTR_MODE)
690 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
692 dat->stream.cbc = NULL;
695 if (mode == EVP_CIPH_CBC_MODE)
696 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
697 else if (mode == EVP_CIPH_CTR_MODE)
698 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
700 dat->stream.cbc = NULL;
703 if (mode == EVP_CIPH_CBC_MODE)
704 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
705 else if (mode == EVP_CIPH_CTR_MODE)
706 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
708 dat->stream.cbc = NULL;
716 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
723 # define aes_t4_cbc_cipher aes_cbc_cipher
724 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
725 const unsigned char *in, size_t len);
727 # define aes_t4_ecb_cipher aes_ecb_cipher
728 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
729 const unsigned char *in, size_t len);
731 # define aes_t4_ofb_cipher aes_ofb_cipher
732 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
733 const unsigned char *in, size_t len);
735 # define aes_t4_cfb_cipher aes_cfb_cipher
736 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
737 const unsigned char *in, size_t len);
739 # define aes_t4_cfb8_cipher aes_cfb8_cipher
740 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
741 const unsigned char *in, size_t len);
743 # define aes_t4_cfb1_cipher aes_cfb1_cipher
744 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
745 const unsigned char *in, size_t len);
747 # define aes_t4_ctr_cipher aes_ctr_cipher
748 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
749 const unsigned char *in, size_t len);
751 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
752 const unsigned char *iv, int enc)
754 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
758 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
759 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
760 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
761 (block128_f) aes_t4_encrypt);
764 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
767 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
770 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
776 * If we have an iv can set it directly, otherwise use saved IV.
778 if (iv == NULL && gctx->iv_set)
781 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
786 /* If key set use IV, otherwise copy */
788 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
790 memcpy(gctx->iv, iv, gctx->ivlen);
797 # define aes_t4_gcm_cipher aes_gcm_cipher
798 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
799 const unsigned char *in, size_t len);
801 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
802 const unsigned char *iv, int enc)
804 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
810 /* The key is two half length keys in reality */
811 const int bytes = EVP_CIPHER_CTX_key_length(ctx) / 2;
812 const int bits = bytes * 8;
815 * Verify that the two keys are different.
817 * This addresses Rogaway's vulnerability.
818 * See comment in aes_xts_init_key() below.
820 if (enc && CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
821 EVPerr(EVP_F_AES_T4_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
826 /* key_len is two AES keys */
828 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
829 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
832 xctx->stream = aes128_t4_xts_encrypt;
835 xctx->stream = aes256_t4_xts_encrypt;
841 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
843 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
846 xctx->stream = aes128_t4_xts_decrypt;
849 xctx->stream = aes256_t4_xts_decrypt;
856 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
857 EVP_CIPHER_CTX_key_length(ctx) * 4,
859 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
861 xctx->xts.key1 = &xctx->ks1;
865 xctx->xts.key2 = &xctx->ks2;
866 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
872 # define aes_t4_xts_cipher aes_xts_cipher
873 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
874 const unsigned char *in, size_t len);
876 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
877 const unsigned char *iv, int enc)
879 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
883 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
884 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
885 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
886 &cctx->ks, (block128_f) aes_t4_encrypt);
891 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
897 # define aes_t4_ccm_cipher aes_ccm_cipher
898 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
899 const unsigned char *in, size_t len);
901 # ifndef OPENSSL_NO_OCB
902 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
903 const unsigned char *iv, int enc)
905 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
911 * We set both the encrypt and decrypt key here because decrypt
912 * needs both. We could possibly optimise to remove setting the
913 * decrypt for an encryption operation.
915 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
917 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
919 if (!CRYPTO_ocb128_init(&octx->ocb,
920 &octx->ksenc.ks, &octx->ksdec.ks,
921 (block128_f) aes_t4_encrypt,
922 (block128_f) aes_t4_decrypt,
929 * If we have an iv we can set it directly, otherwise use saved IV.
931 if (iv == NULL && octx->iv_set)
934 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
941 /* If key set use IV, otherwise copy */
943 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
945 memcpy(octx->iv, iv, octx->ivlen);
951 # define aes_t4_ocb_cipher aes_ocb_cipher
952 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
953 const unsigned char *in, size_t len);
954 # endif /* OPENSSL_NO_OCB */
956 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
957 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
958 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
959 flags|EVP_CIPH_##MODE##_MODE, \
961 aes_t4_##mode##_cipher, \
963 sizeof(EVP_AES_KEY), \
964 NULL,NULL,NULL,NULL }; \
965 static const EVP_CIPHER aes_##keylen##_##mode = { \
966 nid##_##keylen##_##nmode,blocksize, \
968 flags|EVP_CIPH_##MODE##_MODE, \
970 aes_##mode##_cipher, \
972 sizeof(EVP_AES_KEY), \
973 NULL,NULL,NULL,NULL }; \
974 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
975 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
977 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
978 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
979 nid##_##keylen##_##mode,blocksize, \
980 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
981 flags|EVP_CIPH_##MODE##_MODE, \
982 aes_t4_##mode##_init_key, \
983 aes_t4_##mode##_cipher, \
984 aes_##mode##_cleanup, \
985 sizeof(EVP_AES_##MODE##_CTX), \
986 NULL,NULL,aes_##mode##_ctrl,NULL }; \
987 static const EVP_CIPHER aes_##keylen##_##mode = { \
988 nid##_##keylen##_##mode,blocksize, \
989 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
990 flags|EVP_CIPH_##MODE##_MODE, \
991 aes_##mode##_init_key, \
992 aes_##mode##_cipher, \
993 aes_##mode##_cleanup, \
994 sizeof(EVP_AES_##MODE##_CTX), \
995 NULL,NULL,aes_##mode##_ctrl,NULL }; \
996 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
997 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
999 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
1003 # include "s390x_arch.h"
1009 * KM-AES parameter block - begin
1010 * (see z/Architecture Principles of Operation >= SA22-7832-06)
1013 unsigned char k[32];
1015 /* KM-AES parameter block - end */
1018 } S390X_AES_ECB_CTX;
1024 * KMO-AES parameter block - begin
1025 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1028 unsigned char cv[16];
1029 unsigned char k[32];
1031 /* KMO-AES parameter block - end */
1036 } S390X_AES_OFB_CTX;
1042 * KMF-AES parameter block - begin
1043 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1046 unsigned char cv[16];
1047 unsigned char k[32];
1049 /* KMF-AES parameter block - end */
1054 } S390X_AES_CFB_CTX;
1060 * KMA-GCM-AES parameter block - begin
1061 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1064 unsigned char reserved[12];
1070 unsigned long long g[2];
1071 unsigned char b[16];
1073 unsigned char h[16];
1074 unsigned long long taadl;
1075 unsigned long long tpcl;
1077 unsigned long long g[2];
1080 unsigned char k[32];
1082 /* KMA-GCM-AES parameter block - end */
1094 unsigned char ares[16];
1095 unsigned char mres[16];
1096 unsigned char kres[16];
1102 } S390X_AES_GCM_CTX;
1108 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1109 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1110 * rounds field is used to store the function code and that the key
1111 * schedule is not stored (if aes hardware support is detected).
1114 unsigned char pad[16];
1120 * KMAC-AES parameter block - begin
1121 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1125 unsigned long long g[2];
1126 unsigned char b[16];
1128 unsigned char k[32];
1130 /* KMAC-AES parameter block - end */
1133 unsigned long long g[2];
1134 unsigned char b[16];
1137 unsigned long long g[2];
1138 unsigned char b[16];
1141 unsigned long long blocks;
1150 unsigned char pad[140];
1154 } S390X_AES_CCM_CTX;
1156 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1157 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1159 /* Most modes of operation need km for partial block processing. */
1160 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1161 S390X_CAPBIT(S390X_AES_128))
1162 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1163 S390X_CAPBIT(S390X_AES_192))
1164 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1165 S390X_CAPBIT(S390X_AES_256))
1167 # define s390x_aes_init_key aes_init_key
1168 static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1169 const unsigned char *iv, int enc);
1171 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1172 # define S390X_aes_192_cbc_CAPABLE 1
1173 # define S390X_aes_256_cbc_CAPABLE 1
1174 # define S390X_AES_CBC_CTX EVP_AES_KEY
1176 # define s390x_aes_cbc_init_key aes_init_key
1178 # define s390x_aes_cbc_cipher aes_cbc_cipher
1179 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1180 const unsigned char *in, size_t len);
1182 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1183 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1184 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1186 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
1187 const unsigned char *key,
1188 const unsigned char *iv, int enc)
1190 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1191 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1193 cctx->fc = S390X_AES_FC(keylen);
1195 cctx->fc |= S390X_DECRYPT;
1197 memcpy(cctx->km.param.k, key, keylen);
1201 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1202 const unsigned char *in, size_t len)
1204 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1206 s390x_km(in, len, out, cctx->fc, &cctx->km.param);
1210 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1211 (OPENSSL_s390xcap_P.kmo[0] & \
1212 S390X_CAPBIT(S390X_AES_128)))
1213 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1214 (OPENSSL_s390xcap_P.kmo[0] & \
1215 S390X_CAPBIT(S390X_AES_192)))
1216 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1217 (OPENSSL_s390xcap_P.kmo[0] & \
1218 S390X_CAPBIT(S390X_AES_256)))
1220 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
1221 const unsigned char *key,
1222 const unsigned char *ivec, int enc)
1224 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1225 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1226 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1227 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1229 memcpy(cctx->kmo.param.cv, iv, ivlen);
1230 memcpy(cctx->kmo.param.k, key, keylen);
1231 cctx->fc = S390X_AES_FC(keylen);
1236 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1237 const unsigned char *in, size_t len)
1239 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1244 *out = *in ^ cctx->kmo.param.cv[n];
1253 len &= ~(size_t)0xf;
1255 s390x_kmo(in, len, out, cctx->fc, &cctx->kmo.param);
1262 s390x_km(cctx->kmo.param.cv, 16, cctx->kmo.param.cv, cctx->fc,
1266 out[n] = in[n] ^ cctx->kmo.param.cv[n];
1275 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1276 (OPENSSL_s390xcap_P.kmf[0] & \
1277 S390X_CAPBIT(S390X_AES_128)))
1278 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1279 (OPENSSL_s390xcap_P.kmf[0] & \
1280 S390X_CAPBIT(S390X_AES_192)))
1281 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1282 (OPENSSL_s390xcap_P.kmf[0] & \
1283 S390X_CAPBIT(S390X_AES_256)))
1285 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
1286 const unsigned char *key,
1287 const unsigned char *ivec, int enc)
1289 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1290 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1291 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1292 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1294 cctx->fc = S390X_AES_FC(keylen);
1295 cctx->fc |= 16 << 24; /* 16 bytes cipher feedback */
1297 cctx->fc |= S390X_DECRYPT;
1300 memcpy(cctx->kmf.param.cv, iv, ivlen);
1301 memcpy(cctx->kmf.param.k, key, keylen);
1305 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1306 const unsigned char *in, size_t len)
1308 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1309 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1310 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1317 *out = cctx->kmf.param.cv[n] ^ tmp;
1318 cctx->kmf.param.cv[n] = enc ? *out : tmp;
1327 len &= ~(size_t)0xf;
1329 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1336 s390x_km(cctx->kmf.param.cv, 16, cctx->kmf.param.cv,
1337 S390X_AES_FC(keylen), cctx->kmf.param.k);
1341 out[n] = cctx->kmf.param.cv[n] ^ tmp;
1342 cctx->kmf.param.cv[n] = enc ? out[n] : tmp;
1351 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1352 S390X_CAPBIT(S390X_AES_128))
1353 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1354 S390X_CAPBIT(S390X_AES_192))
1355 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1356 S390X_CAPBIT(S390X_AES_256))
1358 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
1359 const unsigned char *key,
1360 const unsigned char *ivec, int enc)
1362 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1363 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1364 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1365 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1367 cctx->fc = S390X_AES_FC(keylen);
1368 cctx->fc |= 1 << 24; /* 1 byte cipher feedback */
1370 cctx->fc |= S390X_DECRYPT;
1372 memcpy(cctx->kmf.param.cv, iv, ivlen);
1373 memcpy(cctx->kmf.param.k, key, keylen);
1377 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1378 const unsigned char *in, size_t len)
1380 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1382 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1386 # define S390X_aes_128_cfb1_CAPABLE 0
1387 # define S390X_aes_192_cfb1_CAPABLE 0
1388 # define S390X_aes_256_cfb1_CAPABLE 0
1390 # define s390x_aes_cfb1_init_key aes_init_key
1392 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1393 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1394 const unsigned char *in, size_t len);
1396 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1397 # define S390X_aes_192_ctr_CAPABLE 1
1398 # define S390X_aes_256_ctr_CAPABLE 1
1399 # define S390X_AES_CTR_CTX EVP_AES_KEY
1401 # define s390x_aes_ctr_init_key aes_init_key
1403 # define s390x_aes_ctr_cipher aes_ctr_cipher
1404 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1405 const unsigned char *in, size_t len);
1407 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1408 (OPENSSL_s390xcap_P.kma[0] & \
1409 S390X_CAPBIT(S390X_AES_128)))
1410 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1411 (OPENSSL_s390xcap_P.kma[0] & \
1412 S390X_CAPBIT(S390X_AES_192)))
1413 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1414 (OPENSSL_s390xcap_P.kma[0] & \
1415 S390X_CAPBIT(S390X_AES_256)))
1417 /* iv + padding length for iv lenghts != 12 */
1418 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1421 * Process additional authenticated data. Returns 0 on success. Code is
1424 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1427 unsigned long long alen;
1430 if (ctx->kma.param.tpcl)
1433 alen = ctx->kma.param.taadl + len;
1434 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1436 ctx->kma.param.taadl = alen;
1441 ctx->ares[n] = *aad;
1446 /* ctx->ares contains a complete block if offset has wrapped around */
1448 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1449 ctx->fc |= S390X_KMA_HS;
1456 len &= ~(size_t)0xf;
1458 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1460 ctx->fc |= S390X_KMA_HS;
1468 ctx->ares[rem] = aad[rem];
1475 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1476 * success. Code is big-endian.
1478 static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1479 unsigned char *out, size_t len)
1481 const unsigned char *inptr;
1482 unsigned long long mlen;
1485 unsigned char b[16];
1490 mlen = ctx->kma.param.tpcl + len;
1491 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1493 ctx->kma.param.tpcl = mlen;
1499 while (n && inlen) {
1500 ctx->mres[n] = *inptr;
1505 /* ctx->mres contains a complete block if offset has wrapped around */
1507 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1508 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1509 ctx->fc |= S390X_KMA_HS;
1512 /* previous call already encrypted/decrypted its remainder,
1513 * see comment below */
1528 len &= ~(size_t)0xf;
1530 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1531 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1534 ctx->fc |= S390X_KMA_HS;
1539 * If there is a remainder, it has to be saved such that it can be
1540 * processed by kma later. However, we also have to do the for-now
1541 * unauthenticated encryption/decryption part here and now...
1544 if (!ctx->mreslen) {
1545 buf.w[0] = ctx->kma.param.j0.w[0];
1546 buf.w[1] = ctx->kma.param.j0.w[1];
1547 buf.w[2] = ctx->kma.param.j0.w[2];
1548 buf.w[3] = ctx->kma.param.cv.w + 1;
1549 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1553 for (i = 0; i < rem; i++) {
1554 ctx->mres[n + i] = in[i];
1555 out[i] = in[i] ^ ctx->kres[n + i];
1558 ctx->mreslen += rem;
1564 * Initialize context structure. Code is big-endian.
1566 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1567 const unsigned char *iv)
1569 ctx->kma.param.t.g[0] = 0;
1570 ctx->kma.param.t.g[1] = 0;
1571 ctx->kma.param.tpcl = 0;
1572 ctx->kma.param.taadl = 0;
1577 if (ctx->ivlen == 12) {
1578 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1579 ctx->kma.param.j0.w[3] = 1;
1580 ctx->kma.param.cv.w = 1;
1582 /* ctx->iv has the right size and is already padded. */
1583 memcpy(ctx->iv, iv, ctx->ivlen);
1584 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1585 ctx->fc, &ctx->kma.param);
1586 ctx->fc |= S390X_KMA_HS;
1588 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1589 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1590 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1591 ctx->kma.param.t.g[0] = 0;
1592 ctx->kma.param.t.g[1] = 0;
1597 * Performs various operations on the context structure depending on control
1598 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1599 * Code is big-endian.
1601 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1603 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1604 S390X_AES_GCM_CTX *gctx_out;
1605 EVP_CIPHER_CTX *out;
1606 unsigned char *buf, *iv;
1607 int ivlen, enc, len;
1611 ivlen = EVP_CIPHER_iv_length(c->cipher);
1612 iv = EVP_CIPHER_CTX_iv_noconst(c);
1615 gctx->ivlen = ivlen;
1619 gctx->tls_aad_len = -1;
1622 case EVP_CTRL_GET_IVLEN:
1623 *(int *)ptr = gctx->ivlen;
1626 case EVP_CTRL_AEAD_SET_IVLEN:
1631 iv = EVP_CIPHER_CTX_iv_noconst(c);
1632 len = S390X_gcm_ivpadlen(arg);
1634 /* Allocate memory for iv if needed. */
1635 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1637 OPENSSL_free(gctx->iv);
1639 if ((gctx->iv = OPENSSL_malloc(len)) == NULL) {
1640 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1645 memset(gctx->iv + arg, 0, len - arg - 8);
1646 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1651 case EVP_CTRL_AEAD_SET_TAG:
1652 buf = EVP_CIPHER_CTX_buf_noconst(c);
1653 enc = EVP_CIPHER_CTX_encrypting(c);
1654 if (arg <= 0 || arg > 16 || enc)
1657 memcpy(buf, ptr, arg);
1661 case EVP_CTRL_AEAD_GET_TAG:
1662 enc = EVP_CIPHER_CTX_encrypting(c);
1663 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1666 memcpy(ptr, gctx->kma.param.t.b, arg);
1669 case EVP_CTRL_GCM_SET_IV_FIXED:
1670 /* Special case: -1 length restores whole iv */
1672 memcpy(gctx->iv, ptr, gctx->ivlen);
1677 * Fixed field must be at least 4 bytes and invocation field at least
1680 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1684 memcpy(gctx->iv, ptr, arg);
1686 enc = EVP_CIPHER_CTX_encrypting(c);
1687 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1693 case EVP_CTRL_GCM_IV_GEN:
1694 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1697 s390x_aes_gcm_setiv(gctx, gctx->iv);
1699 if (arg <= 0 || arg > gctx->ivlen)
1702 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1704 * Invocation field will be at least 8 bytes in size and so no need
1705 * to check wrap around or increment more than last 8 bytes.
1707 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1711 case EVP_CTRL_GCM_SET_IV_INV:
1712 enc = EVP_CIPHER_CTX_encrypting(c);
1713 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1716 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1717 s390x_aes_gcm_setiv(gctx, gctx->iv);
1721 case EVP_CTRL_AEAD_TLS1_AAD:
1722 /* Save the aad for later use. */
1723 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1726 buf = EVP_CIPHER_CTX_buf_noconst(c);
1727 memcpy(buf, ptr, arg);
1728 gctx->tls_aad_len = arg;
1730 len = buf[arg - 2] << 8 | buf[arg - 1];
1731 /* Correct length for explicit iv. */
1732 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1734 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1736 /* If decrypting correct for tag too. */
1737 enc = EVP_CIPHER_CTX_encrypting(c);
1739 if (len < EVP_GCM_TLS_TAG_LEN)
1741 len -= EVP_GCM_TLS_TAG_LEN;
1743 buf[arg - 2] = len >> 8;
1744 buf[arg - 1] = len & 0xff;
1745 /* Extra padding: tag appended to record. */
1746 return EVP_GCM_TLS_TAG_LEN;
1750 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1751 iv = EVP_CIPHER_CTX_iv_noconst(c);
1753 if (gctx->iv == iv) {
1754 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1756 len = S390X_gcm_ivpadlen(gctx->ivlen);
1758 if ((gctx_out->iv = OPENSSL_malloc(len)) == NULL) {
1759 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1763 memcpy(gctx_out->iv, gctx->iv, len);
1773 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1775 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1776 const unsigned char *key,
1777 const unsigned char *iv, int enc)
1779 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1782 if (iv == NULL && key == NULL)
1786 keylen = EVP_CIPHER_CTX_key_length(ctx);
1787 memcpy(&gctx->kma.param.k, key, keylen);
1789 gctx->fc = S390X_AES_FC(keylen);
1791 gctx->fc |= S390X_DECRYPT;
1793 if (iv == NULL && gctx->iv_set)
1797 s390x_aes_gcm_setiv(gctx, iv);
1803 s390x_aes_gcm_setiv(gctx, iv);
1805 memcpy(gctx->iv, iv, gctx->ivlen);
1814 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1815 * if successful. Otherwise -1 is returned. Code is big-endian.
1817 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1818 const unsigned char *in, size_t len)
1820 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1821 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1822 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1825 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1828 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1829 : EVP_CTRL_GCM_SET_IV_INV,
1830 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1833 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1834 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1835 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1837 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1838 gctx->kma.param.tpcl = len << 3;
1839 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1840 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1843 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1844 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1846 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1847 EVP_GCM_TLS_TAG_LEN)) {
1848 OPENSSL_cleanse(out, len);
1855 gctx->tls_aad_len = -1;
1860 * Called from EVP layer to initialize context, process additional
1861 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1862 * ciphertext or process a TLS packet, depending on context. Returns bytes
1863 * written on success. Otherwise -1 is returned. Code is big-endian.
1865 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1866 const unsigned char *in, size_t len)
1868 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1869 unsigned char *buf, tmp[16];
1875 if (gctx->tls_aad_len >= 0)
1876 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1883 if (s390x_aes_gcm_aad(gctx, in, len))
1886 if (s390x_aes_gcm(gctx, in, out, len))
1891 gctx->kma.param.taadl <<= 3;
1892 gctx->kma.param.tpcl <<= 3;
1893 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1894 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1895 /* recall that we already did en-/decrypt gctx->mres
1896 * and returned it to caller... */
1897 OPENSSL_cleanse(tmp, gctx->mreslen);
1900 enc = EVP_CIPHER_CTX_encrypting(ctx);
1904 if (gctx->taglen < 0)
1907 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1908 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1915 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1917 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1918 const unsigned char *iv;
1923 iv = EVP_CIPHER_CTX_iv(c);
1925 OPENSSL_free(gctx->iv);
1927 OPENSSL_cleanse(gctx, sizeof(*gctx));
1931 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1932 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1933 # define S390X_aes_256_xts_CAPABLE 1
1935 # define s390x_aes_xts_init_key aes_xts_init_key
1936 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1937 const unsigned char *key,
1938 const unsigned char *iv, int enc);
1939 # define s390x_aes_xts_cipher aes_xts_cipher
1940 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1941 const unsigned char *in, size_t len);
1942 # define s390x_aes_xts_ctrl aes_xts_ctrl
1943 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1944 # define s390x_aes_xts_cleanup aes_xts_cleanup
1946 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1947 (OPENSSL_s390xcap_P.kmac[0] & \
1948 S390X_CAPBIT(S390X_AES_128)))
1949 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1950 (OPENSSL_s390xcap_P.kmac[0] & \
1951 S390X_CAPBIT(S390X_AES_192)))
1952 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1953 (OPENSSL_s390xcap_P.kmac[0] & \
1954 S390X_CAPBIT(S390X_AES_256)))
1956 # define S390X_CCM_AAD_FLAG 0x40
1959 * Set nonce and length fields. Code is big-endian.
1961 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX *ctx,
1962 const unsigned char *nonce,
1965 ctx->aes.ccm.nonce.b[0] &= ~S390X_CCM_AAD_FLAG;
1966 ctx->aes.ccm.nonce.g[1] = mlen;
1967 memcpy(ctx->aes.ccm.nonce.b + 1, nonce, 15 - ctx->aes.ccm.l);
1971 * Process additional authenticated data. Code is big-endian.
1973 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX *ctx, const unsigned char *aad,
1982 ctx->aes.ccm.nonce.b[0] |= S390X_CCM_AAD_FLAG;
1984 /* Suppress 'type-punned pointer dereference' warning. */
1985 ptr = ctx->aes.ccm.buf.b;
1987 if (alen < ((1 << 16) - (1 << 8))) {
1988 *(uint16_t *)ptr = alen;
1990 } else if (sizeof(alen) == 8
1991 && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
1992 *(uint16_t *)ptr = 0xffff;
1993 *(uint64_t *)(ptr + 2) = alen;
1996 *(uint16_t *)ptr = 0xfffe;
1997 *(uint32_t *)(ptr + 2) = alen;
2001 while (i < 16 && alen) {
2002 ctx->aes.ccm.buf.b[i] = *aad;
2008 ctx->aes.ccm.buf.b[i] = 0;
2012 ctx->aes.ccm.kmac_param.icv.g[0] = 0;
2013 ctx->aes.ccm.kmac_param.icv.g[1] = 0;
2014 s390x_kmac(ctx->aes.ccm.nonce.b, 32, ctx->aes.ccm.fc,
2015 &ctx->aes.ccm.kmac_param);
2016 ctx->aes.ccm.blocks += 2;
2019 alen &= ~(size_t)0xf;
2021 s390x_kmac(aad, alen, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2022 ctx->aes.ccm.blocks += alen >> 4;
2026 for (i = 0; i < rem; i++)
2027 ctx->aes.ccm.kmac_param.icv.b[i] ^= aad[i];
2029 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2030 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2031 ctx->aes.ccm.kmac_param.k);
2032 ctx->aes.ccm.blocks++;
2037 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2040 static int s390x_aes_ccm(S390X_AES_CCM_CTX *ctx, const unsigned char *in,
2041 unsigned char *out, size_t len, int enc)
2044 unsigned int i, l, num;
2045 unsigned char flags;
2047 flags = ctx->aes.ccm.nonce.b[0];
2048 if (!(flags & S390X_CCM_AAD_FLAG)) {
2049 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.kmac_param.icv.b,
2050 ctx->aes.ccm.fc, ctx->aes.ccm.kmac_param.k);
2051 ctx->aes.ccm.blocks++;
2054 ctx->aes.ccm.nonce.b[0] = l;
2057 * Reconstruct length from encoded length field
2058 * and initialize it with counter value.
2061 for (i = 15 - l; i < 15; i++) {
2062 n |= ctx->aes.ccm.nonce.b[i];
2063 ctx->aes.ccm.nonce.b[i] = 0;
2066 n |= ctx->aes.ccm.nonce.b[15];
2067 ctx->aes.ccm.nonce.b[15] = 1;
2070 return -1; /* length mismatch */
2073 /* Two operations per block plus one for tag encryption */
2074 ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
2075 if (ctx->aes.ccm.blocks > (1ULL << 61))
2076 return -2; /* too much data */
2081 len &= ~(size_t)0xf;
2084 /* mac-then-encrypt */
2086 s390x_kmac(in, 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] ^= in[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);
2096 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2097 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2098 &num, (ctr128_f)AES_ctr32_encrypt);
2100 /* decrypt-then-mac */
2101 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2102 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2103 &num, (ctr128_f)AES_ctr32_encrypt);
2106 s390x_kmac(out, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2108 for (i = 0; i < rem; i++)
2109 ctx->aes.ccm.kmac_param.icv.b[i] ^= out[len + i];
2111 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2112 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2113 ctx->aes.ccm.kmac_param.k);
2117 for (i = 15 - l; i < 16; i++)
2118 ctx->aes.ccm.nonce.b[i] = 0;
2120 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.buf.b, ctx->aes.ccm.fc,
2121 ctx->aes.ccm.kmac_param.k);
2122 ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
2123 ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
2125 ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
2130 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2131 * if successful. Otherwise -1 is returned.
2133 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2134 const unsigned char *in, size_t len)
2136 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2137 unsigned char *ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2138 unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2139 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2142 || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->aes.ccm.m))
2146 /* Set explicit iv (sequence number). */
2147 memcpy(out, buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2150 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2152 * Get explicit iv (sequence number). We already have fixed iv
2153 * (server/client_write_iv) here.
2155 memcpy(ivec + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2156 s390x_aes_ccm_setiv(cctx, ivec, len);
2158 /* Process aad (sequence number|type|version|length) */
2159 s390x_aes_ccm_aad(cctx, buf, cctx->aes.ccm.tls_aad_len);
2161 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2162 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2165 if (s390x_aes_ccm(cctx, in, out, len, enc))
2168 memcpy(out + len, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2169 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2171 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2172 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, in + len,
2177 OPENSSL_cleanse(out, len);
2183 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2186 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
2187 const unsigned char *key,
2188 const unsigned char *iv, int enc)
2190 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2191 unsigned char *ivec;
2194 if (iv == NULL && key == NULL)
2198 keylen = EVP_CIPHER_CTX_key_length(ctx);
2199 cctx->aes.ccm.fc = S390X_AES_FC(keylen);
2200 memcpy(cctx->aes.ccm.kmac_param.k, key, keylen);
2202 /* Store encoded m and l. */
2203 cctx->aes.ccm.nonce.b[0] = ((cctx->aes.ccm.l - 1) & 0x7)
2204 | (((cctx->aes.ccm.m - 2) >> 1) & 0x7) << 3;
2205 memset(cctx->aes.ccm.nonce.b + 1, 0,
2206 sizeof(cctx->aes.ccm.nonce.b));
2207 cctx->aes.ccm.blocks = 0;
2209 cctx->aes.ccm.key_set = 1;
2213 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2214 memcpy(ivec, iv, 15 - cctx->aes.ccm.l);
2216 cctx->aes.ccm.iv_set = 1;
2223 * Called from EVP layer to initialize context, process additional
2224 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2225 * plaintext or process a TLS packet, depending on context. Returns bytes
2226 * written on success. Otherwise -1 is returned.
2228 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2229 const unsigned char *in, size_t len)
2231 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2232 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2234 unsigned char *buf, *ivec;
2236 if (!cctx->aes.ccm.key_set)
2239 if (cctx->aes.ccm.tls_aad_len >= 0)
2240 return s390x_aes_ccm_tls_cipher(ctx, out, in, len);
2243 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2244 * so integrity must be checked already at Update() i.e., before
2245 * potentially corrupted data is output.
2247 if (in == NULL && out != NULL)
2250 if (!cctx->aes.ccm.iv_set)
2254 /* Update(): Pass message length. */
2256 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2257 s390x_aes_ccm_setiv(cctx, ivec, len);
2259 cctx->aes.ccm.len_set = 1;
2263 /* Update(): Process aad. */
2264 if (!cctx->aes.ccm.len_set && len)
2267 s390x_aes_ccm_aad(cctx, in, len);
2271 /* The tag must be set before actually decrypting data */
2272 if (!enc && !cctx->aes.ccm.tag_set)
2275 /* Update(): Process message. */
2277 if (!cctx->aes.ccm.len_set) {
2279 * In case message length was not previously set explicitly via
2280 * Update(), set it now.
2282 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2283 s390x_aes_ccm_setiv(cctx, ivec, len);
2285 cctx->aes.ccm.len_set = 1;
2289 if (s390x_aes_ccm(cctx, in, out, len, enc))
2292 cctx->aes.ccm.tag_set = 1;
2297 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2298 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2299 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, buf,
2305 OPENSSL_cleanse(out, len);
2307 cctx->aes.ccm.iv_set = 0;
2308 cctx->aes.ccm.tag_set = 0;
2309 cctx->aes.ccm.len_set = 0;
2315 * Performs various operations on the context structure depending on control
2316 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2317 * Code is big-endian.
2319 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2321 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, c);
2322 unsigned char *buf, *iv;
2327 cctx->aes.ccm.key_set = 0;
2328 cctx->aes.ccm.iv_set = 0;
2329 cctx->aes.ccm.l = 8;
2330 cctx->aes.ccm.m = 12;
2331 cctx->aes.ccm.tag_set = 0;
2332 cctx->aes.ccm.len_set = 0;
2333 cctx->aes.ccm.tls_aad_len = -1;
2336 case EVP_CTRL_GET_IVLEN:
2337 *(int *)ptr = 15 - cctx->aes.ccm.l;
2340 case EVP_CTRL_AEAD_TLS1_AAD:
2341 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2344 /* Save the aad for later use. */
2345 buf = EVP_CIPHER_CTX_buf_noconst(c);
2346 memcpy(buf, ptr, arg);
2347 cctx->aes.ccm.tls_aad_len = arg;
2349 len = buf[arg - 2] << 8 | buf[arg - 1];
2350 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2353 /* Correct length for explicit iv. */
2354 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2356 enc = EVP_CIPHER_CTX_encrypting(c);
2358 if (len < cctx->aes.ccm.m)
2361 /* Correct length for tag. */
2362 len -= cctx->aes.ccm.m;
2365 buf[arg - 2] = len >> 8;
2366 buf[arg - 1] = len & 0xff;
2368 /* Extra padding: tag appended to record. */
2369 return cctx->aes.ccm.m;
2371 case EVP_CTRL_CCM_SET_IV_FIXED:
2372 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2375 /* Copy to first part of the iv. */
2376 iv = EVP_CIPHER_CTX_iv_noconst(c);
2377 memcpy(iv, ptr, arg);
2380 case EVP_CTRL_AEAD_SET_IVLEN:
2384 case EVP_CTRL_CCM_SET_L:
2385 if (arg < 2 || arg > 8)
2388 cctx->aes.ccm.l = arg;
2391 case EVP_CTRL_AEAD_SET_TAG:
2392 if ((arg & 1) || arg < 4 || arg > 16)
2395 enc = EVP_CIPHER_CTX_encrypting(c);
2400 cctx->aes.ccm.tag_set = 1;
2401 buf = EVP_CIPHER_CTX_buf_noconst(c);
2402 memcpy(buf, ptr, arg);
2405 cctx->aes.ccm.m = arg;
2408 case EVP_CTRL_AEAD_GET_TAG:
2409 enc = EVP_CIPHER_CTX_encrypting(c);
2410 if (!enc || !cctx->aes.ccm.tag_set)
2413 if(arg < cctx->aes.ccm.m)
2416 memcpy(ptr, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2417 cctx->aes.ccm.tag_set = 0;
2418 cctx->aes.ccm.iv_set = 0;
2419 cctx->aes.ccm.len_set = 0;
2430 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2432 # ifndef OPENSSL_NO_OCB
2433 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2434 # define S390X_aes_128_ocb_CAPABLE 0
2435 # define S390X_aes_192_ocb_CAPABLE 0
2436 # define S390X_aes_256_ocb_CAPABLE 0
2438 # define s390x_aes_ocb_init_key aes_ocb_init_key
2439 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2440 const unsigned char *iv, int enc);
2441 # define s390x_aes_ocb_cipher aes_ocb_cipher
2442 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2443 const unsigned char *in, size_t len);
2444 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2445 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
2446 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2447 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
2450 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2452 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2453 nid##_##keylen##_##nmode,blocksize, \
2456 flags | EVP_CIPH_##MODE##_MODE, \
2457 s390x_aes_##mode##_init_key, \
2458 s390x_aes_##mode##_cipher, \
2460 sizeof(S390X_AES_##MODE##_CTX), \
2466 static const EVP_CIPHER aes_##keylen##_##mode = { \
2467 nid##_##keylen##_##nmode, \
2471 flags | EVP_CIPH_##MODE##_MODE, \
2473 aes_##mode##_cipher, \
2475 sizeof(EVP_AES_KEY), \
2481 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2483 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2484 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2487 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2488 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2489 nid##_##keylen##_##mode, \
2491 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2493 flags | EVP_CIPH_##MODE##_MODE, \
2494 s390x_aes_##mode##_init_key, \
2495 s390x_aes_##mode##_cipher, \
2496 s390x_aes_##mode##_cleanup, \
2497 sizeof(S390X_AES_##MODE##_CTX), \
2500 s390x_aes_##mode##_ctrl, \
2503 static const EVP_CIPHER aes_##keylen##_##mode = { \
2504 nid##_##keylen##_##mode,blocksize, \
2505 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2507 flags | EVP_CIPH_##MODE##_MODE, \
2508 aes_##mode##_init_key, \
2509 aes_##mode##_cipher, \
2510 aes_##mode##_cleanup, \
2511 sizeof(EVP_AES_##MODE##_CTX), \
2514 aes_##mode##_ctrl, \
2517 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2519 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2520 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2525 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2526 static const EVP_CIPHER aes_##keylen##_##mode = { \
2527 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2528 flags|EVP_CIPH_##MODE##_MODE, \
2530 aes_##mode##_cipher, \
2532 sizeof(EVP_AES_KEY), \
2533 NULL,NULL,NULL,NULL }; \
2534 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2535 { return &aes_##keylen##_##mode; }
2537 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2538 static const EVP_CIPHER aes_##keylen##_##mode = { \
2539 nid##_##keylen##_##mode,blocksize, \
2540 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
2541 flags|EVP_CIPH_##MODE##_MODE, \
2542 aes_##mode##_init_key, \
2543 aes_##mode##_cipher, \
2544 aes_##mode##_cleanup, \
2545 sizeof(EVP_AES_##MODE##_CTX), \
2546 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2547 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2548 { return &aes_##keylen##_##mode; }
2552 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2553 # include "arm_arch.h"
2554 # if __ARM_MAX_ARCH__>=7
2555 # if defined(BSAES_ASM)
2556 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2558 # if defined(VPAES_ASM)
2559 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2561 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2562 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2563 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2564 # define HWAES_encrypt aes_v8_encrypt
2565 # define HWAES_decrypt aes_v8_decrypt
2566 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2567 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2571 #if defined(HWAES_CAPABLE)
2572 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
2574 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
2576 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
2577 const AES_KEY *key);
2578 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
2579 const AES_KEY *key);
2580 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
2581 size_t length, const AES_KEY *key,
2582 unsigned char *ivec, const int enc);
2583 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
2584 size_t len, const AES_KEY *key,
2585 const unsigned char ivec[16]);
2586 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
2587 size_t len, const AES_KEY *key1,
2588 const AES_KEY *key2, const unsigned char iv[16]);
2589 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
2590 size_t len, const AES_KEY *key1,
2591 const AES_KEY *key2, const unsigned char iv[16]);
2594 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2595 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2596 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2597 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2598 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2599 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2600 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2601 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2603 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2604 const unsigned char *iv, int enc)
2607 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2609 mode = EVP_CIPHER_CTX_mode(ctx);
2610 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
2612 #ifdef HWAES_CAPABLE
2613 if (HWAES_CAPABLE) {
2614 ret = HWAES_set_decrypt_key(key,
2615 EVP_CIPHER_CTX_key_length(ctx) * 8,
2617 dat->block = (block128_f) HWAES_decrypt;
2618 dat->stream.cbc = NULL;
2619 # ifdef HWAES_cbc_encrypt
2620 if (mode == EVP_CIPH_CBC_MODE)
2621 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2625 #ifdef BSAES_CAPABLE
2626 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
2627 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2629 dat->block = (block128_f) AES_decrypt;
2630 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
2633 #ifdef VPAES_CAPABLE
2634 if (VPAES_CAPABLE) {
2635 ret = vpaes_set_decrypt_key(key,
2636 EVP_CIPHER_CTX_key_length(ctx) * 8,
2638 dat->block = (block128_f) vpaes_decrypt;
2639 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2640 (cbc128_f) vpaes_cbc_encrypt : NULL;
2644 ret = AES_set_decrypt_key(key,
2645 EVP_CIPHER_CTX_key_length(ctx) * 8,
2647 dat->block = (block128_f) AES_decrypt;
2648 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2649 (cbc128_f) AES_cbc_encrypt : NULL;
2652 #ifdef HWAES_CAPABLE
2653 if (HWAES_CAPABLE) {
2654 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2656 dat->block = (block128_f) HWAES_encrypt;
2657 dat->stream.cbc = NULL;
2658 # ifdef HWAES_cbc_encrypt
2659 if (mode == EVP_CIPH_CBC_MODE)
2660 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2663 # ifdef HWAES_ctr32_encrypt_blocks
2664 if (mode == EVP_CIPH_CTR_MODE)
2665 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2668 (void)0; /* terminate potentially open 'else' */
2671 #ifdef BSAES_CAPABLE
2672 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
2673 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2675 dat->block = (block128_f) AES_encrypt;
2676 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2679 #ifdef VPAES_CAPABLE
2680 if (VPAES_CAPABLE) {
2681 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2683 dat->block = (block128_f) vpaes_encrypt;
2684 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2685 (cbc128_f) vpaes_cbc_encrypt : NULL;
2689 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2691 dat->block = (block128_f) AES_encrypt;
2692 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2693 (cbc128_f) AES_cbc_encrypt : NULL;
2695 if (mode == EVP_CIPH_CTR_MODE)
2696 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
2701 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
2708 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2709 const unsigned char *in, size_t len)
2711 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2713 if (dat->stream.cbc)
2714 (*dat->stream.cbc) (in, out, len, &dat->ks,
2715 EVP_CIPHER_CTX_iv_noconst(ctx),
2716 EVP_CIPHER_CTX_encrypting(ctx));
2717 else if (EVP_CIPHER_CTX_encrypting(ctx))
2718 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
2719 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2721 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
2722 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2727 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2728 const unsigned char *in, size_t len)
2730 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
2732 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2737 for (i = 0, len -= bl; i <= len; i += bl)
2738 (*dat->block) (in + i, out + i, &dat->ks);
2743 static int aes_ofb_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_ofb128_encrypt(in, out, len, &dat->ks,
2750 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
2751 EVP_CIPHER_CTX_set_num(ctx, num);
2755 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2756 const unsigned char *in, size_t len)
2758 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2760 int num = EVP_CIPHER_CTX_num(ctx);
2761 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
2762 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2763 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2764 EVP_CIPHER_CTX_set_num(ctx, num);
2768 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2769 const unsigned char *in, size_t len)
2771 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2773 int num = EVP_CIPHER_CTX_num(ctx);
2774 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
2775 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2776 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2777 EVP_CIPHER_CTX_set_num(ctx, num);
2781 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2782 const unsigned char *in, size_t len)
2784 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2786 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
2787 int num = EVP_CIPHER_CTX_num(ctx);
2788 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
2789 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2790 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2791 EVP_CIPHER_CTX_set_num(ctx, num);
2795 while (len >= MAXBITCHUNK) {
2796 int num = EVP_CIPHER_CTX_num(ctx);
2797 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
2798 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2799 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2800 EVP_CIPHER_CTX_set_num(ctx, num);
2806 int num = EVP_CIPHER_CTX_num(ctx);
2807 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
2808 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2809 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2810 EVP_CIPHER_CTX_set_num(ctx, num);
2816 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2817 const unsigned char *in, size_t len)
2819 unsigned int num = EVP_CIPHER_CTX_num(ctx);
2820 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2822 if (dat->stream.ctr)
2823 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
2824 EVP_CIPHER_CTX_iv_noconst(ctx),
2825 EVP_CIPHER_CTX_buf_noconst(ctx),
2826 &num, dat->stream.ctr);
2828 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
2829 EVP_CIPHER_CTX_iv_noconst(ctx),
2830 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
2832 EVP_CIPHER_CTX_set_num(ctx, num);
2836 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2837 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2838 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
2840 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
2842 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2845 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
2846 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
2847 OPENSSL_free(gctx->iv);
2851 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2853 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2858 gctx->ivlen = EVP_CIPHER_iv_length(c->cipher);
2862 gctx->tls_aad_len = -1;
2865 case EVP_CTRL_GET_IVLEN:
2866 *(int *)ptr = gctx->ivlen;
2869 case EVP_CTRL_AEAD_SET_IVLEN:
2872 /* Allocate memory for IV if needed */
2873 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
2874 if (gctx->iv != c->iv)
2875 OPENSSL_free(gctx->iv);
2876 if ((gctx->iv = OPENSSL_malloc(arg)) == NULL) {
2877 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2884 case EVP_CTRL_AEAD_SET_TAG:
2885 if (arg <= 0 || arg > 16 || c->encrypt)
2887 memcpy(c->buf, ptr, arg);
2891 case EVP_CTRL_AEAD_GET_TAG:
2892 if (arg <= 0 || arg > 16 || !c->encrypt
2893 || gctx->taglen < 0)
2895 memcpy(ptr, c->buf, arg);
2898 case EVP_CTRL_GCM_SET_IV_FIXED:
2899 /* Special case: -1 length restores whole IV */
2901 memcpy(gctx->iv, ptr, gctx->ivlen);
2906 * Fixed field must be at least 4 bytes and invocation field at least
2909 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2912 memcpy(gctx->iv, ptr, arg);
2913 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
2918 case EVP_CTRL_GCM_IV_GEN:
2919 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2921 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2922 if (arg <= 0 || arg > gctx->ivlen)
2924 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2926 * Invocation field will be at least 8 bytes in size and so no need
2927 * to check wrap around or increment more than last 8 bytes.
2929 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2933 case EVP_CTRL_GCM_SET_IV_INV:
2934 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
2936 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2937 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2941 case EVP_CTRL_AEAD_TLS1_AAD:
2942 /* Save the AAD for later use */
2943 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2945 memcpy(c->buf, ptr, arg);
2946 gctx->tls_aad_len = arg;
2948 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
2949 /* Correct length for explicit IV */
2950 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2952 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2953 /* If decrypting correct for tag too */
2955 if (len < EVP_GCM_TLS_TAG_LEN)
2957 len -= EVP_GCM_TLS_TAG_LEN;
2959 c->buf[arg - 2] = len >> 8;
2960 c->buf[arg - 1] = len & 0xff;
2962 /* Extra padding: tag appended to record */
2963 return EVP_GCM_TLS_TAG_LEN;
2967 EVP_CIPHER_CTX *out = ptr;
2968 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
2969 if (gctx->gcm.key) {
2970 if (gctx->gcm.key != &gctx->ks)
2972 gctx_out->gcm.key = &gctx_out->ks;
2974 if (gctx->iv == c->iv)
2975 gctx_out->iv = out->iv;
2977 if ((gctx_out->iv = OPENSSL_malloc(gctx->ivlen)) == NULL) {
2978 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2981 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2992 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2993 const unsigned char *iv, int enc)
2995 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3000 #ifdef HWAES_CAPABLE
3001 if (HWAES_CAPABLE) {
3002 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3003 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3004 (block128_f) HWAES_encrypt);
3005 # ifdef HWAES_ctr32_encrypt_blocks
3006 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
3013 #ifdef BSAES_CAPABLE
3014 if (BSAES_CAPABLE) {
3015 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3016 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3017 (block128_f) AES_encrypt);
3018 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
3022 #ifdef VPAES_CAPABLE
3023 if (VPAES_CAPABLE) {
3024 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3025 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3026 (block128_f) vpaes_encrypt);
3031 (void)0; /* terminate potentially open 'else' */
3033 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3034 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3035 (block128_f) AES_encrypt);
3037 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
3044 * If we have an iv can set it directly, otherwise use saved IV.
3046 if (iv == NULL && gctx->iv_set)
3049 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3054 /* If key set use IV, otherwise copy */
3056 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3058 memcpy(gctx->iv, iv, gctx->ivlen);
3066 * Handle TLS GCM packet format. This consists of the last portion of the IV
3067 * followed by the payload and finally the tag. On encrypt generate IV,
3068 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3072 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3073 const unsigned char *in, size_t len)
3075 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3077 /* Encrypt/decrypt must be performed in place */
3079 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
3082 * Set IV from start of buffer or generate IV and write to start of
3085 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? EVP_CTRL_GCM_IV_GEN
3086 : EVP_CTRL_GCM_SET_IV_INV,
3087 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
3090 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
3092 /* Fix buffer and length to point to payload */
3093 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3094 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3095 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3097 /* Encrypt payload */
3100 #if defined(AES_GCM_ASM)
3101 if (len >= 32 && AES_GCM_ASM(gctx)) {
3102 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3105 bulk = AES_gcm_encrypt(in, out, len,
3107 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3108 gctx->gcm.len.u[1] += bulk;
3111 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3114 len - bulk, gctx->ctr))
3118 #if defined(AES_GCM_ASM2)
3119 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3120 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3123 bulk = AES_gcm_encrypt(in, out, len,
3125 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3126 gctx->gcm.len.u[1] += bulk;
3129 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3130 in + bulk, out + bulk, len - bulk))
3134 /* Finally write tag */
3135 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
3136 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3141 #if defined(AES_GCM_ASM)
3142 if (len >= 16 && AES_GCM_ASM(gctx)) {
3143 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3146 bulk = AES_gcm_decrypt(in, out, len,
3148 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3149 gctx->gcm.len.u[1] += bulk;
3152 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3155 len - bulk, gctx->ctr))
3159 #if defined(AES_GCM_ASM2)
3160 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3161 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3164 bulk = AES_gcm_decrypt(in, out, len,
3166 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3167 gctx->gcm.len.u[1] += bulk;
3170 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3171 in + bulk, out + bulk, len - bulk))
3175 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
3176 /* If tag mismatch wipe buffer */
3177 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
3178 OPENSSL_cleanse(out, len);
3186 gctx->tls_aad_len = -1;
3190 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3191 const unsigned char *in, size_t len)
3193 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3194 /* If not set up, return error */
3198 if (gctx->tls_aad_len >= 0)
3199 return aes_gcm_tls_cipher(ctx, out, in, len);
3205 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
3207 } else if (ctx->encrypt) {
3210 #if defined(AES_GCM_ASM)
3211 if (len >= 32 && AES_GCM_ASM(gctx)) {
3212 size_t res = (16 - gctx->gcm.mres) % 16;
3214 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3217 bulk = AES_gcm_encrypt(in + res,
3218 out + res, len - res,
3219 gctx->gcm.key, gctx->gcm.Yi.c,
3221 gctx->gcm.len.u[1] += bulk;
3225 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3228 len - bulk, gctx->ctr))
3232 #if defined(AES_GCM_ASM2)
3233 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3234 size_t res = (16 - gctx->gcm.mres) % 16;
3236 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3239 bulk = AES_gcm_encrypt(in + res,
3240 out + res, len - res,
3241 gctx->gcm.key, gctx->gcm.Yi.c,
3243 gctx->gcm.len.u[1] += bulk;
3247 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3248 in + bulk, out + bulk, len - bulk))
3254 #if defined(AES_GCM_ASM)
3255 if (len >= 16 && AES_GCM_ASM(gctx)) {
3256 size_t res = (16 - gctx->gcm.mres) % 16;
3258 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3261 bulk = AES_gcm_decrypt(in + res,
3262 out + res, len - res,
3264 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3265 gctx->gcm.len.u[1] += bulk;
3269 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3272 len - bulk, gctx->ctr))
3276 #if defined(AES_GCM_ASM2)
3277 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3278 size_t res = (16 - gctx->gcm.mres) % 16;
3280 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3283 bulk = AES_gcm_decrypt(in + res,
3284 out + res, len - res,
3286 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3287 gctx->gcm.len.u[1] += bulk;
3291 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3292 in + bulk, out + bulk, len - bulk))
3298 if (!ctx->encrypt) {
3299 if (gctx->taglen < 0)
3301 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
3306 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
3308 /* Don't reuse the IV */
3315 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3316 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3317 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3318 | EVP_CIPH_CUSTOM_COPY | EVP_CIPH_CUSTOM_IV_LENGTH)
3320 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
3321 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3322 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
3323 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3324 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
3325 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3327 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3329 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX, c);
3331 if (type == EVP_CTRL_COPY) {
3332 EVP_CIPHER_CTX *out = ptr;
3333 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
3335 if (xctx->xts.key1) {
3336 if (xctx->xts.key1 != &xctx->ks1)
3338 xctx_out->xts.key1 = &xctx_out->ks1;
3340 if (xctx->xts.key2) {
3341 if (xctx->xts.key2 != &xctx->ks2)
3343 xctx_out->xts.key2 = &xctx_out->ks2;
3346 } else if (type != EVP_CTRL_INIT)
3348 /* key1 and key2 are used as an indicator both key and IV are set */
3349 xctx->xts.key1 = NULL;
3350 xctx->xts.key2 = NULL;
3354 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3355 const unsigned char *iv, int enc)
3357 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3364 /* The key is two half length keys in reality */
3365 const int bytes = EVP_CIPHER_CTX_key_length(ctx) / 2;
3368 * Verify that the two keys are different.
3370 * This addresses the vulnerability described in Rogaway's
3371 * September 2004 paper:
3373 * "Efficient Instantiations of Tweakable Blockciphers and
3374 * Refinements to Modes OCB and PMAC".
3375 * (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf)
3377 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states
3379 * "The check for Key_1 != Key_2 shall be done at any place
3380 * BEFORE using the keys in the XTS-AES algorithm to process
3383 if (enc && CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
3384 EVPerr(EVP_F_AES_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
3389 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
3391 xctx->stream = NULL;
3393 /* key_len is two AES keys */
3394 #ifdef HWAES_CAPABLE
3395 if (HWAES_CAPABLE) {
3397 HWAES_set_encrypt_key(key,
3398 EVP_CIPHER_CTX_key_length(ctx) * 4,
3400 xctx->xts.block1 = (block128_f) HWAES_encrypt;
3401 # ifdef HWAES_xts_encrypt
3402 xctx->stream = HWAES_xts_encrypt;
3405 HWAES_set_decrypt_key(key,
3406 EVP_CIPHER_CTX_key_length(ctx) * 4,
3408 xctx->xts.block1 = (block128_f) HWAES_decrypt;
3409 # ifdef HWAES_xts_decrypt
3410 xctx->stream = HWAES_xts_decrypt;
3414 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3415 EVP_CIPHER_CTX_key_length(ctx) * 4,
3417 xctx->xts.block2 = (block128_f) HWAES_encrypt;
3419 xctx->xts.key1 = &xctx->ks1;
3423 #ifdef BSAES_CAPABLE
3425 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
3428 #ifdef VPAES_CAPABLE
3429 if (VPAES_CAPABLE) {
3431 vpaes_set_encrypt_key(key,
3432 EVP_CIPHER_CTX_key_length(ctx) * 4,
3434 xctx->xts.block1 = (block128_f) vpaes_encrypt;
3436 vpaes_set_decrypt_key(key,
3437 EVP_CIPHER_CTX_key_length(ctx) * 4,
3439 xctx->xts.block1 = (block128_f) vpaes_decrypt;
3442 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3443 EVP_CIPHER_CTX_key_length(ctx) * 4,
3445 xctx->xts.block2 = (block128_f) vpaes_encrypt;
3447 xctx->xts.key1 = &xctx->ks1;
3451 (void)0; /* terminate potentially open 'else' */
3454 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3456 xctx->xts.block1 = (block128_f) AES_encrypt;
3458 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3460 xctx->xts.block1 = (block128_f) AES_decrypt;
3463 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3464 EVP_CIPHER_CTX_key_length(ctx) * 4,
3466 xctx->xts.block2 = (block128_f) AES_encrypt;
3468 xctx->xts.key1 = &xctx->ks1;
3472 xctx->xts.key2 = &xctx->ks2;
3473 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
3479 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3480 const unsigned char *in, size_t len)
3482 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3483 if (!xctx->xts.key1 || !xctx->xts.key2)
3485 if (!out || !in || len < AES_BLOCK_SIZE)
3488 (*xctx->stream) (in, out, len,
3489 xctx->xts.key1, xctx->xts.key2,
3490 EVP_CIPHER_CTX_iv_noconst(ctx));
3491 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
3493 EVP_CIPHER_CTX_encrypting(ctx)))
3498 #define aes_xts_cleanup NULL
3500 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3501 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3502 | EVP_CIPH_CUSTOM_COPY)
3504 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
3505 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
3507 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3509 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
3518 cctx->tls_aad_len = -1;
3520 case EVP_CTRL_GET_IVLEN:
3521 *(int *)ptr = 15 - cctx->L;
3523 case EVP_CTRL_AEAD_TLS1_AAD:
3524 /* Save the AAD for later use */
3525 if (arg != EVP_AEAD_TLS1_AAD_LEN)
3527 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3528 cctx->tls_aad_len = arg;
3531 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
3532 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
3533 /* Correct length for explicit IV */
3534 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
3536 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
3537 /* If decrypting correct for tag too */
3538 if (!EVP_CIPHER_CTX_encrypting(c)) {
3543 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
3544 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
3546 /* Extra padding: tag appended to record */
3549 case EVP_CTRL_CCM_SET_IV_FIXED:
3550 /* Sanity check length */
3551 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
3553 /* Just copy to first part of IV */
3554 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
3557 case EVP_CTRL_AEAD_SET_IVLEN:
3560 case EVP_CTRL_CCM_SET_L:
3561 if (arg < 2 || arg > 8)
3566 case EVP_CTRL_AEAD_SET_TAG:
3567 if ((arg & 1) || arg < 4 || arg > 16)
3569 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
3573 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3578 case EVP_CTRL_AEAD_GET_TAG:
3579 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
3581 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
3590 EVP_CIPHER_CTX *out = ptr;
3591 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
3592 if (cctx->ccm.key) {
3593 if (cctx->ccm.key != &cctx->ks)
3595 cctx_out->ccm.key = &cctx_out->ks;
3606 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3607 const unsigned char *iv, int enc)
3609 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3614 #ifdef HWAES_CAPABLE
3615 if (HWAES_CAPABLE) {
3616 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3619 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3620 &cctx->ks, (block128_f) HWAES_encrypt);
3626 #ifdef VPAES_CAPABLE
3627 if (VPAES_CAPABLE) {
3628 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3630 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3631 &cctx->ks, (block128_f) vpaes_encrypt);
3637 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3639 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3640 &cctx->ks, (block128_f) AES_encrypt);
3645 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
3651 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3652 const unsigned char *in, size_t len)
3654 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3655 CCM128_CONTEXT *ccm = &cctx->ccm;
3656 /* Encrypt/decrypt must be performed in place */
3657 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
3659 /* If encrypting set explicit IV from sequence number (start of AAD) */
3660 if (EVP_CIPHER_CTX_encrypting(ctx))
3661 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
3662 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3663 /* Get rest of IV from explicit IV */
3664 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
3665 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3666 /* Correct length value */
3667 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3668 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
3672 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
3673 /* Fix buffer to point to payload */
3674 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3675 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3676 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3677 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3679 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3681 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
3683 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3685 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3687 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3688 unsigned char tag[16];
3689 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3690 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
3694 OPENSSL_cleanse(out, len);
3699 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3700 const unsigned char *in, size_t len)
3702 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3703 CCM128_CONTEXT *ccm = &cctx->ccm;
3704 /* If not set up, return error */
3708 if (cctx->tls_aad_len >= 0)
3709 return aes_ccm_tls_cipher(ctx, out, in, len);
3711 /* EVP_*Final() doesn't return any data */
3712 if (in == NULL && out != NULL)
3720 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3726 /* If have AAD need message length */
3727 if (!cctx->len_set && len)
3729 CRYPTO_ccm128_aad(ccm, in, len);
3733 /* The tag must be set before actually decrypting data */
3734 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
3737 /* If not set length yet do it */
3738 if (!cctx->len_set) {
3739 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3744 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3745 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3747 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3753 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3755 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3756 unsigned char tag[16];
3757 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3758 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
3764 OPENSSL_cleanse(out, len);
3772 #define aes_ccm_cleanup NULL
3774 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
3775 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3776 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
3777 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3778 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
3779 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3786 /* Indicates if IV has been set */
3790 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3791 const unsigned char *iv, int enc)
3793 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3797 if (EVP_CIPHER_CTX_encrypting(ctx))
3798 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3801 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3807 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
3808 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
3813 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3814 const unsigned char *in, size_t inlen)
3816 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3818 /* AES wrap with padding has IV length of 4, without padding 8 */
3819 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
3820 /* No final operation so always return zero length */
3823 /* Input length must always be non-zero */
3826 /* If decrypting need at least 16 bytes and multiple of 8 */
3827 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
3829 /* If not padding input must be multiple of 8 */
3830 if (!pad && inlen & 0x7)
3832 if (is_partially_overlapping(out, in, inlen)) {
3833 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3837 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3838 /* If padding round up to multiple of 8 */
3840 inlen = (inlen + 7) / 8 * 8;
3845 * If not padding output will be exactly 8 bytes smaller than
3846 * input. If padding it will be at least 8 bytes smaller but we
3847 * don't know how much.
3853 if (EVP_CIPHER_CTX_encrypting(ctx))
3854 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3856 (block128_f) AES_encrypt);
3858 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3860 (block128_f) AES_decrypt);
3862 if (EVP_CIPHER_CTX_encrypting(ctx))
3863 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3864 out, in, inlen, (block128_f) AES_encrypt);
3866 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3867 out, in, inlen, (block128_f) AES_decrypt);
3869 return rv ? (int)rv : -1;
3872 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3873 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3874 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3876 static const EVP_CIPHER aes_128_wrap = {
3878 8, 16, 8, WRAP_FLAGS,
3879 aes_wrap_init_key, aes_wrap_cipher,
3881 sizeof(EVP_AES_WRAP_CTX),
3882 NULL, NULL, NULL, NULL
3885 const EVP_CIPHER *EVP_aes_128_wrap(void)
3887 return &aes_128_wrap;
3890 static const EVP_CIPHER aes_192_wrap = {
3892 8, 24, 8, WRAP_FLAGS,
3893 aes_wrap_init_key, aes_wrap_cipher,
3895 sizeof(EVP_AES_WRAP_CTX),
3896 NULL, NULL, NULL, NULL
3899 const EVP_CIPHER *EVP_aes_192_wrap(void)
3901 return &aes_192_wrap;
3904 static const EVP_CIPHER aes_256_wrap = {
3906 8, 32, 8, WRAP_FLAGS,
3907 aes_wrap_init_key, aes_wrap_cipher,
3909 sizeof(EVP_AES_WRAP_CTX),
3910 NULL, NULL, NULL, NULL
3913 const EVP_CIPHER *EVP_aes_256_wrap(void)
3915 return &aes_256_wrap;
3918 static const EVP_CIPHER aes_128_wrap_pad = {
3919 NID_id_aes128_wrap_pad,
3920 8, 16, 4, WRAP_FLAGS,
3921 aes_wrap_init_key, aes_wrap_cipher,
3923 sizeof(EVP_AES_WRAP_CTX),
3924 NULL, NULL, NULL, NULL
3927 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
3929 return &aes_128_wrap_pad;
3932 static const EVP_CIPHER aes_192_wrap_pad = {
3933 NID_id_aes192_wrap_pad,
3934 8, 24, 4, WRAP_FLAGS,
3935 aes_wrap_init_key, aes_wrap_cipher,
3937 sizeof(EVP_AES_WRAP_CTX),
3938 NULL, NULL, NULL, NULL
3941 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
3943 return &aes_192_wrap_pad;
3946 static const EVP_CIPHER aes_256_wrap_pad = {
3947 NID_id_aes256_wrap_pad,
3948 8, 32, 4, WRAP_FLAGS,
3949 aes_wrap_init_key, aes_wrap_cipher,
3951 sizeof(EVP_AES_WRAP_CTX),
3952 NULL, NULL, NULL, NULL
3955 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
3957 return &aes_256_wrap_pad;
3960 #ifndef OPENSSL_NO_OCB
3961 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3963 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
3964 EVP_CIPHER_CTX *newc;
3965 EVP_AES_OCB_CTX *new_octx;
3971 octx->ivlen = EVP_CIPHER_iv_length(c->cipher);
3972 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
3974 octx->data_buf_len = 0;
3975 octx->aad_buf_len = 0;
3978 case EVP_CTRL_GET_IVLEN:
3979 *(int *)ptr = octx->ivlen;
3982 case EVP_CTRL_AEAD_SET_IVLEN:
3983 /* IV len must be 1 to 15 */
3984 if (arg <= 0 || arg > 15)
3990 case EVP_CTRL_AEAD_SET_TAG:
3992 /* Tag len must be 0 to 16 */
3993 if (arg < 0 || arg > 16)
3999 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
4001 memcpy(octx->tag, ptr, arg);
4004 case EVP_CTRL_AEAD_GET_TAG:
4005 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
4008 memcpy(ptr, octx->tag, arg);
4012 newc = (EVP_CIPHER_CTX *)ptr;
4013 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
4014 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
4015 &new_octx->ksenc.ks,
4016 &new_octx->ksdec.ks);
4024 # ifdef HWAES_CAPABLE
4025 # ifdef HWAES_ocb_encrypt
4026 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
4027 size_t blocks, const void *key,
4028 size_t start_block_num,
4029 unsigned char offset_i[16],
4030 const unsigned char L_[][16],
4031 unsigned char checksum[16]);
4033 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
4035 # ifdef HWAES_ocb_decrypt
4036 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
4037 size_t blocks, const void *key,
4038 size_t start_block_num,
4039 unsigned char offset_i[16],
4040 const unsigned char L_[][16],
4041 unsigned char checksum[16]);
4043 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
4047 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
4048 const unsigned char *iv, int enc)
4050 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4056 * We set both the encrypt and decrypt key here because decrypt
4057 * needs both. We could possibly optimise to remove setting the
4058 * decrypt for an encryption operation.
4060 # ifdef HWAES_CAPABLE
4061 if (HWAES_CAPABLE) {
4062 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4064 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4066 if (!CRYPTO_ocb128_init(&octx->ocb,
4067 &octx->ksenc.ks, &octx->ksdec.ks,
4068 (block128_f) HWAES_encrypt,
4069 (block128_f) HWAES_decrypt,
4070 enc ? HWAES_ocb_encrypt
4071 : HWAES_ocb_decrypt))
4076 # ifdef VPAES_CAPABLE
4077 if (VPAES_CAPABLE) {
4078 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4080 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4082 if (!CRYPTO_ocb128_init(&octx->ocb,
4083 &octx->ksenc.ks, &octx->ksdec.ks,
4084 (block128_f) vpaes_encrypt,
4085 (block128_f) vpaes_decrypt,
4091 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4093 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4095 if (!CRYPTO_ocb128_init(&octx->ocb,
4096 &octx->ksenc.ks, &octx->ksdec.ks,
4097 (block128_f) AES_encrypt,
4098 (block128_f) AES_decrypt,
4105 * If we have an iv we can set it directly, otherwise use saved IV.
4107 if (iv == NULL && octx->iv_set)
4110 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
4117 /* If key set use IV, otherwise copy */
4119 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
4121 memcpy(octx->iv, iv, octx->ivlen);
4127 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4128 const unsigned char *in, size_t len)
4132 int written_len = 0;
4133 size_t trailing_len;
4134 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4136 /* If IV or Key not set then return error */
4145 * Need to ensure we are only passing full blocks to low level OCB
4146 * routines. We do it here rather than in EVP_EncryptUpdate/
4147 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4148 * and those routines don't support that
4151 /* Are we dealing with AAD or normal data here? */
4153 buf = octx->aad_buf;
4154 buf_len = &(octx->aad_buf_len);
4156 buf = octx->data_buf;
4157 buf_len = &(octx->data_buf_len);
4159 if (is_partially_overlapping(out + *buf_len, in, len)) {
4160 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
4166 * If we've got a partially filled buffer from a previous call then
4167 * use that data first
4170 unsigned int remaining;
4172 remaining = AES_BLOCK_SIZE - (*buf_len);
4173 if (remaining > len) {
4174 memcpy(buf + (*buf_len), in, len);
4178 memcpy(buf + (*buf_len), in, remaining);
4181 * If we get here we've filled the buffer, so process it
4186 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
4188 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4189 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
4193 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
4197 written_len = AES_BLOCK_SIZE;
4200 out += AES_BLOCK_SIZE;
4203 /* Do we have a partial block to handle at the end? */
4204 trailing_len = len % AES_BLOCK_SIZE;
4207 * If we've got some full blocks to handle, then process these first
4209 if (len != trailing_len) {
4211 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
4213 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4214 if (!CRYPTO_ocb128_encrypt
4215 (&octx->ocb, in, out, len - trailing_len))
4218 if (!CRYPTO_ocb128_decrypt
4219 (&octx->ocb, in, out, len - trailing_len))
4222 written_len += len - trailing_len;
4223 in += len - trailing_len;
4226 /* Handle any trailing partial block */
4227 if (trailing_len > 0) {
4228 memcpy(buf, in, trailing_len);
4229 *buf_len = trailing_len;
4235 * First of all empty the buffer of any partial block that we might
4236 * have been provided - both for data and AAD
4238 if (octx->data_buf_len > 0) {
4239 if (EVP_CIPHER_CTX_encrypting(ctx)) {
4240 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
4241 octx->data_buf_len))
4244 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
4245 octx->data_buf_len))
4248 written_len = octx->data_buf_len;
4249 octx->data_buf_len = 0;
4251 if (octx->aad_buf_len > 0) {
4252 if (!CRYPTO_ocb128_aad
4253 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
4255 octx->aad_buf_len = 0;
4257 /* If decrypting then verify */
4258 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
4259 if (octx->taglen < 0)
4261 if (CRYPTO_ocb128_finish(&octx->ocb,
4262 octx->tag, octx->taglen) != 0)
4267 /* If encrypting then just get the tag */
4268 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
4270 /* Don't reuse the IV */
4276 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
4278 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
4279 CRYPTO_ocb128_cleanup(&octx->ocb);
4283 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
4284 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4285 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
4286 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4287 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
4288 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4289 #endif /* OPENSSL_NO_OCB */