2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #include <openssl/crypto.h>
12 #include <openssl/evp.h>
13 #include <openssl/err.h>
16 #include <openssl/aes.h>
17 #include "internal/evp_int.h"
18 #include "modes_lcl.h"
19 #include <openssl/rand.h>
20 #include <openssl/cmac.h>
39 } ks; /* AES key schedule to use */
40 int key_set; /* Set if key initialised */
41 int iv_set; /* Set if an iv is set */
43 unsigned char *iv; /* Temporary IV store */
44 int ivlen; /* IV length */
46 int iv_gen; /* It is OK to generate IVs */
47 int tls_aad_len; /* TLS AAD length */
48 uint64_t tls_enc_records; /* Number of TLS records encrypted */
56 } ks1, ks2; /* AES key schedules to use */
58 void (*stream) (const unsigned char *in,
59 unsigned char *out, size_t length,
60 const AES_KEY *key1, const AES_KEY *key2,
61 const unsigned char iv[16]);
68 } ks; /* AES key schedule to use */
69 int key_set; /* Set if key initialised */
70 int iv_set; /* Set if an iv is set */
71 int tag_set; /* Set if tag is valid */
72 int len_set; /* Set if message length set */
73 int L, M; /* L and M parameters from RFC3610 */
74 int tls_aad_len; /* TLS AAD length */
79 #ifndef OPENSSL_NO_OCB
84 } ksenc; /* AES key schedule to use for encryption */
88 } ksdec; /* AES key schedule to use for decryption */
89 int key_set; /* Set if key initialised */
90 int iv_set; /* Set if an iv is set */
92 unsigned char *iv; /* Temporary IV store */
93 unsigned char tag[16];
94 unsigned char data_buf[16]; /* Store partial data blocks */
95 unsigned char aad_buf[16]; /* Store partial AAD blocks */
98 int ivlen; /* IV length */
103 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
106 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
108 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
111 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
113 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
116 void vpaes_cbc_encrypt(const unsigned char *in,
119 const AES_KEY *key, unsigned char *ivec, int enc);
122 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
123 size_t length, const AES_KEY *key,
124 unsigned char ivec[16], int enc);
125 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
126 size_t len, const AES_KEY *key,
127 const unsigned char ivec[16]);
128 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
129 size_t len, const AES_KEY *key1,
130 const AES_KEY *key2, const unsigned char iv[16]);
131 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
132 size_t len, const AES_KEY *key1,
133 const AES_KEY *key2, const unsigned char iv[16]);
136 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
137 size_t blocks, const AES_KEY *key,
138 const unsigned char ivec[AES_BLOCK_SIZE]);
141 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
142 const AES_KEY *key1, const AES_KEY *key2,
143 const unsigned char iv[16]);
144 void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
145 const AES_KEY *key1, const AES_KEY *key2,
146 const unsigned char iv[16]);
149 /* increment counter (64-bit int) by 1 */
150 static void ctr64_inc(unsigned char *counter)
165 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
166 # include "ppc_arch.h"
168 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
170 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
171 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
172 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
173 # define HWAES_encrypt aes_p8_encrypt
174 # define HWAES_decrypt aes_p8_decrypt
175 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
176 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
177 # define HWAES_xts_encrypt aes_p8_xts_encrypt
178 # define HWAES_xts_decrypt aes_p8_xts_decrypt
181 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
182 ((defined(__i386) || defined(__i386__) || \
183 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
184 defined(__x86_64) || defined(__x86_64__) || \
185 defined(_M_AMD64) || defined(_M_X64) )
187 extern unsigned int OPENSSL_ia32cap_P[];
190 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
193 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
198 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
200 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
202 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
205 void aesni_encrypt(const unsigned char *in, unsigned char *out,
207 void aesni_decrypt(const unsigned char *in, unsigned char *out,
210 void aesni_ecb_encrypt(const unsigned char *in,
212 size_t length, const AES_KEY *key, int enc);
213 void aesni_cbc_encrypt(const unsigned char *in,
216 const AES_KEY *key, unsigned char *ivec, int enc);
218 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
221 const void *key, const unsigned char *ivec);
223 void aesni_xts_encrypt(const unsigned char *in,
226 const AES_KEY *key1, const AES_KEY *key2,
227 const unsigned char iv[16]);
229 void aesni_xts_decrypt(const unsigned char *in,
232 const AES_KEY *key1, const AES_KEY *key2,
233 const unsigned char iv[16]);
235 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
239 const unsigned char ivec[16],
240 unsigned char cmac[16]);
242 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
246 const unsigned char ivec[16],
247 unsigned char cmac[16]);
249 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
250 size_t aesni_gcm_encrypt(const unsigned char *in,
253 const void *key, unsigned char ivec[16], u64 *Xi);
254 # define AES_gcm_encrypt aesni_gcm_encrypt
255 size_t aesni_gcm_decrypt(const unsigned char *in,
258 const void *key, unsigned char ivec[16], u64 *Xi);
259 # define AES_gcm_decrypt aesni_gcm_decrypt
260 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
262 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
263 gctx->gcm.ghash==gcm_ghash_avx)
264 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
265 gctx->gcm.ghash==gcm_ghash_avx)
266 # undef AES_GCM_ASM2 /* minor size optimization */
269 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
270 const unsigned char *iv, int enc)
273 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
275 mode = EVP_CIPHER_CTX_mode(ctx);
276 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
278 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
280 dat->block = (block128_f) aesni_decrypt;
281 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
282 (cbc128_f) aesni_cbc_encrypt : NULL;
284 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
286 dat->block = (block128_f) aesni_encrypt;
287 if (mode == EVP_CIPH_CBC_MODE)
288 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
289 else if (mode == EVP_CIPH_CTR_MODE)
290 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
292 dat->stream.cbc = NULL;
296 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
303 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
304 const unsigned char *in, size_t len)
306 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
307 EVP_CIPHER_CTX_iv_noconst(ctx),
308 EVP_CIPHER_CTX_encrypting(ctx));
313 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
314 const unsigned char *in, size_t len)
316 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
321 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
322 EVP_CIPHER_CTX_encrypting(ctx));
327 # define aesni_ofb_cipher aes_ofb_cipher
328 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
329 const unsigned char *in, size_t len);
331 # define aesni_cfb_cipher aes_cfb_cipher
332 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
333 const unsigned char *in, size_t len);
335 # define aesni_cfb8_cipher aes_cfb8_cipher
336 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
337 const unsigned char *in, size_t len);
339 # define aesni_cfb1_cipher aes_cfb1_cipher
340 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
341 const unsigned char *in, size_t len);
343 # define aesni_ctr_cipher aes_ctr_cipher
344 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
345 const unsigned char *in, size_t len);
347 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
348 const unsigned char *iv, int enc)
350 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
354 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
356 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
357 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
359 * If we have an iv can set it directly, otherwise use saved IV.
361 if (iv == NULL && gctx->iv_set)
364 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
369 /* If key set use IV, otherwise copy */
371 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
373 memcpy(gctx->iv, iv, gctx->ivlen);
380 # define aesni_gcm_cipher aes_gcm_cipher
381 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
382 const unsigned char *in, size_t len);
384 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
385 const unsigned char *iv, int enc)
387 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
392 /* key_len is two AES keys */
394 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
396 xctx->xts.block1 = (block128_f) aesni_encrypt;
397 xctx->stream = aesni_xts_encrypt;
399 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
401 xctx->xts.block1 = (block128_f) aesni_decrypt;
402 xctx->stream = aesni_xts_decrypt;
405 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
406 EVP_CIPHER_CTX_key_length(ctx) * 4,
408 xctx->xts.block2 = (block128_f) aesni_encrypt;
410 xctx->xts.key1 = &xctx->ks1;
414 xctx->xts.key2 = &xctx->ks2;
415 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
421 # define aesni_xts_cipher aes_xts_cipher
422 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
423 const unsigned char *in, size_t len);
425 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
426 const unsigned char *iv, int enc)
428 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
432 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
434 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
435 &cctx->ks, (block128_f) aesni_encrypt);
436 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
437 (ccm128_f) aesni_ccm64_decrypt_blocks;
441 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
447 # define aesni_ccm_cipher aes_ccm_cipher
448 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
449 const unsigned char *in, size_t len);
451 # ifndef OPENSSL_NO_OCB
452 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
453 size_t blocks, const void *key,
454 size_t start_block_num,
455 unsigned char offset_i[16],
456 const unsigned char L_[][16],
457 unsigned char checksum[16]);
458 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
459 size_t blocks, const void *key,
460 size_t start_block_num,
461 unsigned char offset_i[16],
462 const unsigned char L_[][16],
463 unsigned char checksum[16]);
465 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
466 const unsigned char *iv, int enc)
468 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
474 * We set both the encrypt and decrypt key here because decrypt
475 * needs both. We could possibly optimise to remove setting the
476 * decrypt for an encryption operation.
478 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
480 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
482 if (!CRYPTO_ocb128_init(&octx->ocb,
483 &octx->ksenc.ks, &octx->ksdec.ks,
484 (block128_f) aesni_encrypt,
485 (block128_f) aesni_decrypt,
486 enc ? aesni_ocb_encrypt
487 : aesni_ocb_decrypt))
493 * If we have an iv we can set it directly, otherwise use saved IV.
495 if (iv == NULL && octx->iv_set)
498 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
505 /* If key set use IV, otherwise copy */
507 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
509 memcpy(octx->iv, iv, octx->ivlen);
515 # define aesni_ocb_cipher aes_ocb_cipher
516 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
517 const unsigned char *in, size_t len);
518 # endif /* OPENSSL_NO_OCB */
520 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
521 static const EVP_CIPHER aesni_##keylen##_##mode = { \
522 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
523 flags|EVP_CIPH_##MODE##_MODE, \
525 aesni_##mode##_cipher, \
527 sizeof(EVP_AES_KEY), \
528 NULL,NULL,NULL,NULL }; \
529 static const EVP_CIPHER aes_##keylen##_##mode = { \
530 nid##_##keylen##_##nmode,blocksize, \
532 flags|EVP_CIPH_##MODE##_MODE, \
534 aes_##mode##_cipher, \
536 sizeof(EVP_AES_KEY), \
537 NULL,NULL,NULL,NULL }; \
538 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
539 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
541 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
542 static const EVP_CIPHER aesni_##keylen##_##mode = { \
543 nid##_##keylen##_##mode,blocksize, \
544 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
546 flags|EVP_CIPH_##MODE##_MODE, \
547 aesni_##mode##_init_key, \
548 aesni_##mode##_cipher, \
549 aes_##mode##_cleanup, \
550 sizeof(EVP_AES_##MODE##_CTX), \
551 NULL,NULL,aes_##mode##_ctrl,NULL }; \
552 static const EVP_CIPHER aes_##keylen##_##mode = { \
553 nid##_##keylen##_##mode,blocksize, \
554 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
556 flags|EVP_CIPH_##MODE##_MODE, \
557 aes_##mode##_init_key, \
558 aes_##mode##_cipher, \
559 aes_##mode##_cleanup, \
560 sizeof(EVP_AES_##MODE##_CTX), \
561 NULL,NULL,aes_##mode##_ctrl,NULL }; \
562 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
563 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
565 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
567 # include "sparc_arch.h"
569 extern unsigned int OPENSSL_sparcv9cap_P[];
572 * Initial Fujitsu SPARC64 X support
574 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
575 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
576 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
577 # define HWAES_encrypt aes_fx_encrypt
578 # define HWAES_decrypt aes_fx_decrypt
579 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
580 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
582 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
584 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
585 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
586 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
588 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
591 * Key-length specific subroutines were chosen for following reason.
592 * Each SPARC T4 core can execute up to 8 threads which share core's
593 * resources. Loading as much key material to registers allows to
594 * minimize references to shared memory interface, as well as amount
595 * of instructions in inner loops [much needed on T4]. But then having
596 * non-key-length specific routines would require conditional branches
597 * either in inner loops or on subroutines' entries. Former is hardly
598 * acceptable, while latter means code size increase to size occupied
599 * by multiple key-length specific subroutines, so why fight?
601 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
602 size_t len, const AES_KEY *key,
603 unsigned char *ivec);
604 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
605 size_t len, const AES_KEY *key,
606 unsigned char *ivec);
607 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
608 size_t len, const AES_KEY *key,
609 unsigned char *ivec);
610 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
611 size_t len, const AES_KEY *key,
612 unsigned char *ivec);
613 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
614 size_t len, const AES_KEY *key,
615 unsigned char *ivec);
616 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
617 size_t len, const AES_KEY *key,
618 unsigned char *ivec);
619 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
620 size_t blocks, const AES_KEY *key,
621 unsigned char *ivec);
622 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
623 size_t blocks, const AES_KEY *key,
624 unsigned char *ivec);
625 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
626 size_t blocks, const AES_KEY *key,
627 unsigned char *ivec);
628 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
629 size_t blocks, const AES_KEY *key1,
630 const AES_KEY *key2, const unsigned char *ivec);
631 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
632 size_t blocks, const AES_KEY *key1,
633 const AES_KEY *key2, const unsigned char *ivec);
634 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
635 size_t blocks, const AES_KEY *key1,
636 const AES_KEY *key2, const unsigned char *ivec);
637 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
638 size_t blocks, const AES_KEY *key1,
639 const AES_KEY *key2, const unsigned char *ivec);
641 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
642 const unsigned char *iv, int enc)
645 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
647 mode = EVP_CIPHER_CTX_mode(ctx);
648 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
649 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
652 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
653 dat->block = (block128_f) aes_t4_decrypt;
656 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
657 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
660 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
661 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
664 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
665 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
672 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
673 dat->block = (block128_f) aes_t4_encrypt;
676 if (mode == EVP_CIPH_CBC_MODE)
677 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
678 else if (mode == EVP_CIPH_CTR_MODE)
679 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
681 dat->stream.cbc = NULL;
684 if (mode == EVP_CIPH_CBC_MODE)
685 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
686 else if (mode == EVP_CIPH_CTR_MODE)
687 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
689 dat->stream.cbc = NULL;
692 if (mode == EVP_CIPH_CBC_MODE)
693 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
694 else if (mode == EVP_CIPH_CTR_MODE)
695 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
697 dat->stream.cbc = NULL;
705 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
712 # define aes_t4_cbc_cipher aes_cbc_cipher
713 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
714 const unsigned char *in, size_t len);
716 # define aes_t4_ecb_cipher aes_ecb_cipher
717 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
718 const unsigned char *in, size_t len);
720 # define aes_t4_ofb_cipher aes_ofb_cipher
721 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
722 const unsigned char *in, size_t len);
724 # define aes_t4_cfb_cipher aes_cfb_cipher
725 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
726 const unsigned char *in, size_t len);
728 # define aes_t4_cfb8_cipher aes_cfb8_cipher
729 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
730 const unsigned char *in, size_t len);
732 # define aes_t4_cfb1_cipher aes_cfb1_cipher
733 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
734 const unsigned char *in, size_t len);
736 # define aes_t4_ctr_cipher aes_ctr_cipher
737 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
738 const unsigned char *in, size_t len);
740 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
741 const unsigned char *iv, int enc)
743 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
747 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
748 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
749 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
750 (block128_f) aes_t4_encrypt);
753 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
756 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
759 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
765 * If we have an iv can set it directly, otherwise use saved IV.
767 if (iv == NULL && gctx->iv_set)
770 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
775 /* If key set use IV, otherwise copy */
777 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
779 memcpy(gctx->iv, iv, gctx->ivlen);
786 # define aes_t4_gcm_cipher aes_gcm_cipher
787 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
788 const unsigned char *in, size_t len);
790 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
791 const unsigned char *iv, int enc)
793 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
798 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
800 /* key_len is two AES keys */
802 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
803 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
806 xctx->stream = aes128_t4_xts_encrypt;
809 xctx->stream = aes256_t4_xts_encrypt;
815 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
817 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
820 xctx->stream = aes128_t4_xts_decrypt;
823 xctx->stream = aes256_t4_xts_decrypt;
830 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
831 EVP_CIPHER_CTX_key_length(ctx) * 4,
833 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
835 xctx->xts.key1 = &xctx->ks1;
839 xctx->xts.key2 = &xctx->ks2;
840 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
846 # define aes_t4_xts_cipher aes_xts_cipher
847 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
848 const unsigned char *in, size_t len);
850 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
851 const unsigned char *iv, int enc)
853 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
857 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
858 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
859 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
860 &cctx->ks, (block128_f) aes_t4_encrypt);
865 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
871 # define aes_t4_ccm_cipher aes_ccm_cipher
872 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
873 const unsigned char *in, size_t len);
875 # ifndef OPENSSL_NO_OCB
876 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
877 const unsigned char *iv, int enc)
879 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
885 * We set both the encrypt and decrypt key here because decrypt
886 * needs both. We could possibly optimise to remove setting the
887 * decrypt for an encryption operation.
889 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
891 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
893 if (!CRYPTO_ocb128_init(&octx->ocb,
894 &octx->ksenc.ks, &octx->ksdec.ks,
895 (block128_f) aes_t4_encrypt,
896 (block128_f) aes_t4_decrypt,
903 * If we have an iv we can set it directly, otherwise use saved IV.
905 if (iv == NULL && octx->iv_set)
908 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
915 /* If key set use IV, otherwise copy */
917 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
919 memcpy(octx->iv, iv, octx->ivlen);
925 # define aes_t4_ocb_cipher aes_ocb_cipher
926 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
927 const unsigned char *in, size_t len);
928 # endif /* OPENSSL_NO_OCB */
930 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
931 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
932 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
933 flags|EVP_CIPH_##MODE##_MODE, \
935 aes_t4_##mode##_cipher, \
937 sizeof(EVP_AES_KEY), \
938 NULL,NULL,NULL,NULL }; \
939 static const EVP_CIPHER aes_##keylen##_##mode = { \
940 nid##_##keylen##_##nmode,blocksize, \
942 flags|EVP_CIPH_##MODE##_MODE, \
944 aes_##mode##_cipher, \
946 sizeof(EVP_AES_KEY), \
947 NULL,NULL,NULL,NULL }; \
948 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
949 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
951 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
952 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
953 nid##_##keylen##_##mode,blocksize, \
954 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
956 flags|EVP_CIPH_##MODE##_MODE, \
957 aes_t4_##mode##_init_key, \
958 aes_t4_##mode##_cipher, \
959 aes_##mode##_cleanup, \
960 sizeof(EVP_AES_##MODE##_CTX), \
961 NULL,NULL,aes_##mode##_ctrl,NULL }; \
962 static const EVP_CIPHER aes_##keylen##_##mode = { \
963 nid##_##keylen##_##mode,blocksize, \
964 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
966 flags|EVP_CIPH_##MODE##_MODE, \
967 aes_##mode##_init_key, \
968 aes_##mode##_cipher, \
969 aes_##mode##_cleanup, \
970 sizeof(EVP_AES_##MODE##_CTX), \
971 NULL,NULL,aes_##mode##_ctrl,NULL }; \
972 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
973 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
975 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
979 # include "s390x_arch.h"
985 * KM-AES parameter block - begin
986 * (see z/Architecture Principles of Operation >= SA22-7832-06)
991 /* KM-AES parameter block - end */
1000 * KMO-AES parameter block - begin
1001 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1004 unsigned char cv[16];
1005 unsigned char k[32];
1007 /* KMO-AES parameter block - end */
1012 } S390X_AES_OFB_CTX;
1018 * KMF-AES parameter block - begin
1019 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1022 unsigned char cv[16];
1023 unsigned char k[32];
1025 /* KMF-AES parameter block - end */
1030 } S390X_AES_CFB_CTX;
1036 * KMA-GCM-AES parameter block - begin
1037 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1040 unsigned char reserved[12];
1046 unsigned long long g[2];
1047 unsigned char b[16];
1049 unsigned char h[16];
1050 unsigned long long taadl;
1051 unsigned long long tpcl;
1053 unsigned long long g[2];
1056 unsigned char k[32];
1058 /* KMA-GCM-AES parameter block - end */
1070 unsigned char ares[16];
1071 unsigned char mres[16];
1072 unsigned char kres[16];
1078 uint64_t tls_enc_records; /* Number of TLS records encrypted */
1079 } S390X_AES_GCM_CTX;
1085 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1086 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1087 * rounds field is used to store the function code and that the key
1088 * schedule is not stored (if aes hardware support is detected).
1091 unsigned char pad[16];
1097 * KMAC-AES parameter block - begin
1098 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1102 unsigned long long g[2];
1103 unsigned char b[16];
1105 unsigned char k[32];
1107 /* KMAC-AES paramater block - end */
1110 unsigned long long g[2];
1111 unsigned char b[16];
1114 unsigned long long g[2];
1115 unsigned char b[16];
1118 unsigned long long blocks;
1127 unsigned char pad[140];
1131 } S390X_AES_CCM_CTX;
1133 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1134 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1136 /* Most modes of operation need km for partial block processing. */
1137 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1138 S390X_CAPBIT(S390X_AES_128))
1139 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1140 S390X_CAPBIT(S390X_AES_192))
1141 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1142 S390X_CAPBIT(S390X_AES_256))
1144 # define s390x_aes_init_key aes_init_key
1145 static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1146 const unsigned char *iv, int enc);
1148 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1149 # define S390X_aes_192_cbc_CAPABLE 1
1150 # define S390X_aes_256_cbc_CAPABLE 1
1151 # define S390X_AES_CBC_CTX EVP_AES_KEY
1153 # define s390x_aes_cbc_init_key aes_init_key
1155 # define s390x_aes_cbc_cipher aes_cbc_cipher
1156 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1157 const unsigned char *in, size_t len);
1159 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1160 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1161 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1163 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
1164 const unsigned char *key,
1165 const unsigned char *iv, int enc)
1167 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1168 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1170 cctx->fc = S390X_AES_FC(keylen);
1172 cctx->fc |= S390X_DECRYPT;
1174 memcpy(cctx->km.param.k, key, keylen);
1178 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1179 const unsigned char *in, size_t len)
1181 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1183 s390x_km(in, len, out, cctx->fc, &cctx->km.param);
1187 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1188 (OPENSSL_s390xcap_P.kmo[0] & \
1189 S390X_CAPBIT(S390X_AES_128)))
1190 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1191 (OPENSSL_s390xcap_P.kmo[0] & \
1192 S390X_CAPBIT(S390X_AES_192)))
1193 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1194 (OPENSSL_s390xcap_P.kmo[0] & \
1195 S390X_CAPBIT(S390X_AES_256)))
1197 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
1198 const unsigned char *key,
1199 const unsigned char *ivec, int enc)
1201 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1202 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1203 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1204 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1206 memcpy(cctx->kmo.param.cv, iv, ivlen);
1207 memcpy(cctx->kmo.param.k, key, keylen);
1208 cctx->fc = S390X_AES_FC(keylen);
1213 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1214 const unsigned char *in, size_t len)
1216 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1221 *out = *in ^ cctx->kmo.param.cv[n];
1230 len &= ~(size_t)0xf;
1232 s390x_kmo(in, len, out, cctx->fc, &cctx->kmo.param);
1239 s390x_km(cctx->kmo.param.cv, 16, cctx->kmo.param.cv, cctx->fc,
1243 out[n] = in[n] ^ cctx->kmo.param.cv[n];
1252 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1253 (OPENSSL_s390xcap_P.kmf[0] & \
1254 S390X_CAPBIT(S390X_AES_128)))
1255 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1256 (OPENSSL_s390xcap_P.kmf[0] & \
1257 S390X_CAPBIT(S390X_AES_192)))
1258 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1259 (OPENSSL_s390xcap_P.kmf[0] & \
1260 S390X_CAPBIT(S390X_AES_256)))
1262 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
1263 const unsigned char *key,
1264 const unsigned char *ivec, int enc)
1266 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1267 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1268 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1269 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1271 cctx->fc = S390X_AES_FC(keylen);
1272 cctx->fc |= 16 << 24; /* 16 bytes cipher feedback */
1274 cctx->fc |= S390X_DECRYPT;
1277 memcpy(cctx->kmf.param.cv, iv, ivlen);
1278 memcpy(cctx->kmf.param.k, key, keylen);
1282 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1283 const unsigned char *in, size_t len)
1285 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1286 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1287 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1294 *out = cctx->kmf.param.cv[n] ^ tmp;
1295 cctx->kmf.param.cv[n] = enc ? *out : tmp;
1304 len &= ~(size_t)0xf;
1306 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1313 s390x_km(cctx->kmf.param.cv, 16, cctx->kmf.param.cv,
1314 S390X_AES_FC(keylen), cctx->kmf.param.k);
1318 out[n] = cctx->kmf.param.cv[n] ^ tmp;
1319 cctx->kmf.param.cv[n] = enc ? out[n] : tmp;
1328 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1329 S390X_CAPBIT(S390X_AES_128))
1330 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1331 S390X_CAPBIT(S390X_AES_192))
1332 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1333 S390X_CAPBIT(S390X_AES_256))
1335 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
1336 const unsigned char *key,
1337 const unsigned char *ivec, int enc)
1339 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1340 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1341 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1342 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1344 cctx->fc = S390X_AES_FC(keylen);
1345 cctx->fc |= 1 << 24; /* 1 byte cipher feedback */
1347 cctx->fc |= S390X_DECRYPT;
1349 memcpy(cctx->kmf.param.cv, iv, ivlen);
1350 memcpy(cctx->kmf.param.k, key, keylen);
1354 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1355 const unsigned char *in, size_t len)
1357 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1359 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1363 # define S390X_aes_128_cfb1_CAPABLE 0
1364 # define S390X_aes_192_cfb1_CAPABLE 0
1365 # define S390X_aes_256_cfb1_CAPABLE 0
1367 # define s390x_aes_cfb1_init_key aes_init_key
1369 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1370 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1371 const unsigned char *in, size_t len);
1373 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1374 # define S390X_aes_192_ctr_CAPABLE 1
1375 # define S390X_aes_256_ctr_CAPABLE 1
1376 # define S390X_AES_CTR_CTX EVP_AES_KEY
1378 # define s390x_aes_ctr_init_key aes_init_key
1380 # define s390x_aes_ctr_cipher aes_ctr_cipher
1381 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1382 const unsigned char *in, size_t len);
1384 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1385 (OPENSSL_s390xcap_P.kma[0] & \
1386 S390X_CAPBIT(S390X_AES_128)))
1387 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1388 (OPENSSL_s390xcap_P.kma[0] & \
1389 S390X_CAPBIT(S390X_AES_192)))
1390 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1391 (OPENSSL_s390xcap_P.kma[0] & \
1392 S390X_CAPBIT(S390X_AES_256)))
1394 /* iv + padding length for iv lenghts != 12 */
1395 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1398 * Process additional authenticated data. Returns 0 on success. Code is
1401 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1404 unsigned long long alen;
1407 if (ctx->kma.param.tpcl)
1410 alen = ctx->kma.param.taadl + len;
1411 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1413 ctx->kma.param.taadl = alen;
1418 ctx->ares[n] = *aad;
1423 /* ctx->ares contains a complete block if offset has wrapped around */
1425 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1426 ctx->fc |= S390X_KMA_HS;
1433 len &= ~(size_t)0xf;
1435 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1437 ctx->fc |= S390X_KMA_HS;
1445 ctx->ares[rem] = aad[rem];
1452 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1453 * success. Code is big-endian.
1455 static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1456 unsigned char *out, size_t len)
1458 const unsigned char *inptr;
1459 unsigned long long mlen;
1462 unsigned char b[16];
1467 mlen = ctx->kma.param.tpcl + len;
1468 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1470 ctx->kma.param.tpcl = mlen;
1476 while (n && inlen) {
1477 ctx->mres[n] = *inptr;
1482 /* ctx->mres contains a complete block if offset has wrapped around */
1484 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1485 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1486 ctx->fc |= S390X_KMA_HS;
1489 /* previous call already encrypted/decrypted its remainder,
1490 * see comment below */
1505 len &= ~(size_t)0xf;
1507 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1508 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1511 ctx->fc |= S390X_KMA_HS;
1516 * If there is a remainder, it has to be saved such that it can be
1517 * processed by kma later. However, we also have to do the for-now
1518 * unauthenticated encryption/decryption part here and now...
1521 if (!ctx->mreslen) {
1522 buf.w[0] = ctx->kma.param.j0.w[0];
1523 buf.w[1] = ctx->kma.param.j0.w[1];
1524 buf.w[2] = ctx->kma.param.j0.w[2];
1525 buf.w[3] = ctx->kma.param.cv.w + 1;
1526 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1530 for (i = 0; i < rem; i++) {
1531 ctx->mres[n + i] = in[i];
1532 out[i] = in[i] ^ ctx->kres[n + i];
1535 ctx->mreslen += rem;
1541 * Initialize context structure. Code is big-endian.
1543 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1544 const unsigned char *iv)
1546 ctx->kma.param.t.g[0] = 0;
1547 ctx->kma.param.t.g[1] = 0;
1548 ctx->kma.param.tpcl = 0;
1549 ctx->kma.param.taadl = 0;
1554 if (ctx->ivlen == 12) {
1555 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1556 ctx->kma.param.j0.w[3] = 1;
1557 ctx->kma.param.cv.w = 1;
1559 /* ctx->iv has the right size and is already padded. */
1560 memcpy(ctx->iv, iv, ctx->ivlen);
1561 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1562 ctx->fc, &ctx->kma.param);
1563 ctx->fc |= S390X_KMA_HS;
1565 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1566 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1567 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1568 ctx->kma.param.t.g[0] = 0;
1569 ctx->kma.param.t.g[1] = 0;
1574 * Performs various operations on the context structure depending on control
1575 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1576 * Code is big-endian.
1578 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1580 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1581 S390X_AES_GCM_CTX *gctx_out;
1582 EVP_CIPHER_CTX *out;
1583 unsigned char *buf, *iv;
1584 int ivlen, enc, len;
1588 ivlen = EVP_CIPHER_CTX_iv_length(c);
1589 iv = EVP_CIPHER_CTX_iv_noconst(c);
1592 gctx->ivlen = ivlen;
1596 gctx->tls_aad_len = -1;
1599 case EVP_CTRL_AEAD_SET_IVLEN:
1604 iv = EVP_CIPHER_CTX_iv_noconst(c);
1605 len = S390X_gcm_ivpadlen(arg);
1607 /* Allocate memory for iv if needed. */
1608 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1610 OPENSSL_free(gctx->iv);
1612 if ((gctx->iv = OPENSSL_malloc(len)) == NULL) {
1613 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1618 memset(gctx->iv + arg, 0, len - arg - 8);
1619 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1624 case EVP_CTRL_AEAD_SET_TAG:
1625 buf = EVP_CIPHER_CTX_buf_noconst(c);
1626 enc = EVP_CIPHER_CTX_encrypting(c);
1627 if (arg <= 0 || arg > 16 || enc)
1630 memcpy(buf, ptr, arg);
1634 case EVP_CTRL_AEAD_GET_TAG:
1635 enc = EVP_CIPHER_CTX_encrypting(c);
1636 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1639 memcpy(ptr, gctx->kma.param.t.b, arg);
1642 case EVP_CTRL_GCM_SET_IV_FIXED:
1643 /* Special case: -1 length restores whole iv */
1645 memcpy(gctx->iv, ptr, gctx->ivlen);
1650 * Fixed field must be at least 4 bytes and invocation field at least
1653 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1657 memcpy(gctx->iv, ptr, arg);
1659 enc = EVP_CIPHER_CTX_encrypting(c);
1660 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1666 case EVP_CTRL_GCM_IV_GEN:
1667 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1670 s390x_aes_gcm_setiv(gctx, gctx->iv);
1672 if (arg <= 0 || arg > gctx->ivlen)
1675 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1677 * Invocation field will be at least 8 bytes in size and so no need
1678 * to check wrap around or increment more than last 8 bytes.
1680 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1684 case EVP_CTRL_GCM_SET_IV_INV:
1685 enc = EVP_CIPHER_CTX_encrypting(c);
1686 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1689 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1690 s390x_aes_gcm_setiv(gctx, gctx->iv);
1694 case EVP_CTRL_AEAD_TLS1_AAD:
1695 /* Save the aad for later use. */
1696 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1699 buf = EVP_CIPHER_CTX_buf_noconst(c);
1700 memcpy(buf, ptr, arg);
1701 gctx->tls_aad_len = arg;
1702 gctx->tls_enc_records = 0;
1704 len = buf[arg - 2] << 8 | buf[arg - 1];
1705 /* Correct length for explicit iv. */
1706 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1708 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1710 /* If decrypting correct for tag too. */
1711 enc = EVP_CIPHER_CTX_encrypting(c);
1713 if (len < EVP_GCM_TLS_TAG_LEN)
1715 len -= EVP_GCM_TLS_TAG_LEN;
1717 buf[arg - 2] = len >> 8;
1718 buf[arg - 1] = len & 0xff;
1719 /* Extra padding: tag appended to record. */
1720 return EVP_GCM_TLS_TAG_LEN;
1724 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1725 iv = EVP_CIPHER_CTX_iv_noconst(c);
1727 if (gctx->iv == iv) {
1728 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1730 len = S390X_gcm_ivpadlen(gctx->ivlen);
1732 if ((gctx_out->iv = OPENSSL_malloc(len)) == NULL) {
1733 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1737 memcpy(gctx_out->iv, gctx->iv, len);
1747 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1749 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1750 const unsigned char *key,
1751 const unsigned char *iv, int enc)
1753 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1756 if (iv == NULL && key == NULL)
1760 keylen = EVP_CIPHER_CTX_key_length(ctx);
1761 memcpy(&gctx->kma.param.k, key, keylen);
1763 gctx->fc = S390X_AES_FC(keylen);
1765 gctx->fc |= S390X_DECRYPT;
1767 if (iv == NULL && gctx->iv_set)
1771 s390x_aes_gcm_setiv(gctx, iv);
1777 s390x_aes_gcm_setiv(gctx, iv);
1779 memcpy(gctx->iv, iv, gctx->ivlen);
1788 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1789 * if successful. Otherwise -1 is returned. Code is big-endian.
1791 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1792 const unsigned char *in, size_t len)
1794 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1795 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1796 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1799 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1803 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1804 * Requirements from SP 800-38D". The requirements is for one party to the
1805 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1808 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
1809 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
1813 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1814 : EVP_CTRL_GCM_SET_IV_INV,
1815 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1818 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1819 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1820 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1822 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1823 gctx->kma.param.tpcl = len << 3;
1824 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1825 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1828 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1829 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1831 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1832 EVP_GCM_TLS_TAG_LEN)) {
1833 OPENSSL_cleanse(out, len);
1840 gctx->tls_aad_len = -1;
1845 * Called from EVP layer to initialize context, process additional
1846 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1847 * ciphertext or process a TLS packet, depending on context. Returns bytes
1848 * written on success. Otherwise -1 is returned. Code is big-endian.
1850 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1851 const unsigned char *in, size_t len)
1853 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1854 unsigned char *buf, tmp[16];
1860 if (gctx->tls_aad_len >= 0)
1861 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1868 if (s390x_aes_gcm_aad(gctx, in, len))
1871 if (s390x_aes_gcm(gctx, in, out, len))
1876 gctx->kma.param.taadl <<= 3;
1877 gctx->kma.param.tpcl <<= 3;
1878 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1879 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1880 /* recall that we already did en-/decrypt gctx->mres
1881 * and returned it to caller... */
1882 OPENSSL_cleanse(tmp, gctx->mreslen);
1885 enc = EVP_CIPHER_CTX_encrypting(ctx);
1889 if (gctx->taglen < 0)
1892 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1893 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1900 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1902 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1903 const unsigned char *iv;
1908 iv = EVP_CIPHER_CTX_iv(c);
1910 OPENSSL_free(gctx->iv);
1912 OPENSSL_cleanse(gctx, sizeof(*gctx));
1916 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1917 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1918 # define S390X_aes_256_xts_CAPABLE 1
1920 # define s390x_aes_xts_init_key aes_xts_init_key
1921 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1922 const unsigned char *key,
1923 const unsigned char *iv, int enc);
1924 # define s390x_aes_xts_cipher aes_xts_cipher
1925 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1926 const unsigned char *in, size_t len);
1927 # define s390x_aes_xts_ctrl aes_xts_ctrl
1928 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1929 # define s390x_aes_xts_cleanup aes_xts_cleanup
1931 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1932 (OPENSSL_s390xcap_P.kmac[0] & \
1933 S390X_CAPBIT(S390X_AES_128)))
1934 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1935 (OPENSSL_s390xcap_P.kmac[0] & \
1936 S390X_CAPBIT(S390X_AES_192)))
1937 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1938 (OPENSSL_s390xcap_P.kmac[0] & \
1939 S390X_CAPBIT(S390X_AES_256)))
1941 # define S390X_CCM_AAD_FLAG 0x40
1944 * Set nonce and length fields. Code is big-endian.
1946 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX *ctx,
1947 const unsigned char *nonce,
1950 ctx->aes.ccm.nonce.b[0] &= ~S390X_CCM_AAD_FLAG;
1951 ctx->aes.ccm.nonce.g[1] = mlen;
1952 memcpy(ctx->aes.ccm.nonce.b + 1, nonce, 15 - ctx->aes.ccm.l);
1956 * Process additional authenticated data. Code is big-endian.
1958 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX *ctx, const unsigned char *aad,
1967 ctx->aes.ccm.nonce.b[0] |= S390X_CCM_AAD_FLAG;
1969 /* Suppress 'type-punned pointer dereference' warning. */
1970 ptr = ctx->aes.ccm.buf.b;
1972 if (alen < ((1 << 16) - (1 << 8))) {
1973 *(uint16_t *)ptr = alen;
1975 } else if (sizeof(alen) == 8
1976 && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
1977 *(uint16_t *)ptr = 0xffff;
1978 *(uint64_t *)(ptr + 2) = alen;
1981 *(uint16_t *)ptr = 0xfffe;
1982 *(uint32_t *)(ptr + 2) = alen;
1986 while (i < 16 && alen) {
1987 ctx->aes.ccm.buf.b[i] = *aad;
1993 ctx->aes.ccm.buf.b[i] = 0;
1997 ctx->aes.ccm.kmac_param.icv.g[0] = 0;
1998 ctx->aes.ccm.kmac_param.icv.g[1] = 0;
1999 s390x_kmac(ctx->aes.ccm.nonce.b, 32, ctx->aes.ccm.fc,
2000 &ctx->aes.ccm.kmac_param);
2001 ctx->aes.ccm.blocks += 2;
2004 alen &= ~(size_t)0xf;
2006 s390x_kmac(aad, alen, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2007 ctx->aes.ccm.blocks += alen >> 4;
2011 for (i = 0; i < rem; i++)
2012 ctx->aes.ccm.kmac_param.icv.b[i] ^= aad[i];
2014 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2015 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2016 ctx->aes.ccm.kmac_param.k);
2017 ctx->aes.ccm.blocks++;
2022 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2025 static int s390x_aes_ccm(S390X_AES_CCM_CTX *ctx, const unsigned char *in,
2026 unsigned char *out, size_t len, int enc)
2029 unsigned int i, l, num;
2030 unsigned char flags;
2032 flags = ctx->aes.ccm.nonce.b[0];
2033 if (!(flags & S390X_CCM_AAD_FLAG)) {
2034 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.kmac_param.icv.b,
2035 ctx->aes.ccm.fc, ctx->aes.ccm.kmac_param.k);
2036 ctx->aes.ccm.blocks++;
2039 ctx->aes.ccm.nonce.b[0] = l;
2042 * Reconstruct length from encoded length field
2043 * and initialize it with counter value.
2046 for (i = 15 - l; i < 15; i++) {
2047 n |= ctx->aes.ccm.nonce.b[i];
2048 ctx->aes.ccm.nonce.b[i] = 0;
2051 n |= ctx->aes.ccm.nonce.b[15];
2052 ctx->aes.ccm.nonce.b[15] = 1;
2055 return -1; /* length mismatch */
2058 /* Two operations per block plus one for tag encryption */
2059 ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
2060 if (ctx->aes.ccm.blocks > (1ULL << 61))
2061 return -2; /* too much data */
2066 len &= ~(size_t)0xf;
2069 /* mac-then-encrypt */
2071 s390x_kmac(in, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2073 for (i = 0; i < rem; i++)
2074 ctx->aes.ccm.kmac_param.icv.b[i] ^= in[len + i];
2076 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2077 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2078 ctx->aes.ccm.kmac_param.k);
2081 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2082 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2083 &num, (ctr128_f)AES_ctr32_encrypt);
2085 /* decrypt-then-mac */
2086 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2087 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2088 &num, (ctr128_f)AES_ctr32_encrypt);
2091 s390x_kmac(out, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2093 for (i = 0; i < rem; i++)
2094 ctx->aes.ccm.kmac_param.icv.b[i] ^= out[len + i];
2096 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2097 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2098 ctx->aes.ccm.kmac_param.k);
2102 for (i = 15 - l; i < 16; i++)
2103 ctx->aes.ccm.nonce.b[i] = 0;
2105 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.buf.b, ctx->aes.ccm.fc,
2106 ctx->aes.ccm.kmac_param.k);
2107 ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
2108 ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
2110 ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
2115 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2116 * if successful. Otherwise -1 is returned.
2118 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2119 const unsigned char *in, size_t len)
2121 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2122 unsigned char *ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2123 unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2124 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2127 || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->aes.ccm.m))
2131 /* Set explicit iv (sequence number). */
2132 memcpy(out, buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2135 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2137 * Get explicit iv (sequence number). We already have fixed iv
2138 * (server/client_write_iv) here.
2140 memcpy(ivec + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2141 s390x_aes_ccm_setiv(cctx, ivec, len);
2143 /* Process aad (sequence number|type|version|length) */
2144 s390x_aes_ccm_aad(cctx, buf, cctx->aes.ccm.tls_aad_len);
2146 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2147 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2150 if (s390x_aes_ccm(cctx, in, out, len, enc))
2153 memcpy(out + len, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2154 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2156 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2157 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, in + len,
2162 OPENSSL_cleanse(out, len);
2168 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2171 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
2172 const unsigned char *key,
2173 const unsigned char *iv, int enc)
2175 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2176 unsigned char *ivec;
2179 if (iv == NULL && key == NULL)
2183 keylen = EVP_CIPHER_CTX_key_length(ctx);
2184 cctx->aes.ccm.fc = S390X_AES_FC(keylen);
2185 memcpy(cctx->aes.ccm.kmac_param.k, key, keylen);
2187 /* Store encoded m and l. */
2188 cctx->aes.ccm.nonce.b[0] = ((cctx->aes.ccm.l - 1) & 0x7)
2189 | (((cctx->aes.ccm.m - 2) >> 1) & 0x7) << 3;
2190 memset(cctx->aes.ccm.nonce.b + 1, 0,
2191 sizeof(cctx->aes.ccm.nonce.b));
2192 cctx->aes.ccm.blocks = 0;
2194 cctx->aes.ccm.key_set = 1;
2198 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2199 memcpy(ivec, iv, 15 - cctx->aes.ccm.l);
2201 cctx->aes.ccm.iv_set = 1;
2208 * Called from EVP layer to initialize context, process additional
2209 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2210 * plaintext or process a TLS packet, depending on context. Returns bytes
2211 * written on success. Otherwise -1 is returned.
2213 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2214 const unsigned char *in, size_t len)
2216 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2217 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2219 unsigned char *buf, *ivec;
2221 if (!cctx->aes.ccm.key_set)
2224 if (cctx->aes.ccm.tls_aad_len >= 0)
2225 return s390x_aes_ccm_tls_cipher(ctx, out, in, len);
2228 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2229 * so integrity must be checked already at Update() i.e., before
2230 * potentially corrupted data is output.
2232 if (in == NULL && out != NULL)
2235 if (!cctx->aes.ccm.iv_set)
2238 if (!enc && !cctx->aes.ccm.tag_set)
2242 /* Update(): Pass message length. */
2244 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2245 s390x_aes_ccm_setiv(cctx, ivec, len);
2247 cctx->aes.ccm.len_set = 1;
2251 /* Update(): Process aad. */
2252 if (!cctx->aes.ccm.len_set && len)
2255 s390x_aes_ccm_aad(cctx, in, len);
2259 /* Update(): Process message. */
2261 if (!cctx->aes.ccm.len_set) {
2263 * In case message length was not previously set explicitly via
2264 * Update(), set it now.
2266 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2267 s390x_aes_ccm_setiv(cctx, ivec, len);
2269 cctx->aes.ccm.len_set = 1;
2273 if (s390x_aes_ccm(cctx, in, out, len, enc))
2276 cctx->aes.ccm.tag_set = 1;
2281 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2282 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2283 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, buf,
2289 OPENSSL_cleanse(out, len);
2291 cctx->aes.ccm.iv_set = 0;
2292 cctx->aes.ccm.tag_set = 0;
2293 cctx->aes.ccm.len_set = 0;
2299 * Performs various operations on the context structure depending on control
2300 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2301 * Code is big-endian.
2303 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2305 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, c);
2306 unsigned char *buf, *iv;
2311 cctx->aes.ccm.key_set = 0;
2312 cctx->aes.ccm.iv_set = 0;
2313 cctx->aes.ccm.l = 8;
2314 cctx->aes.ccm.m = 12;
2315 cctx->aes.ccm.tag_set = 0;
2316 cctx->aes.ccm.len_set = 0;
2317 cctx->aes.ccm.tls_aad_len = -1;
2320 case EVP_CTRL_AEAD_TLS1_AAD:
2321 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2324 /* Save the aad for later use. */
2325 buf = EVP_CIPHER_CTX_buf_noconst(c);
2326 memcpy(buf, ptr, arg);
2327 cctx->aes.ccm.tls_aad_len = arg;
2329 len = buf[arg - 2] << 8 | buf[arg - 1];
2330 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2333 /* Correct length for explicit iv. */
2334 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2336 enc = EVP_CIPHER_CTX_encrypting(c);
2338 if (len < cctx->aes.ccm.m)
2341 /* Correct length for tag. */
2342 len -= cctx->aes.ccm.m;
2345 buf[arg - 2] = len >> 8;
2346 buf[arg - 1] = len & 0xff;
2348 /* Extra padding: tag appended to record. */
2349 return cctx->aes.ccm.m;
2351 case EVP_CTRL_CCM_SET_IV_FIXED:
2352 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2355 /* Copy to first part of the iv. */
2356 iv = EVP_CIPHER_CTX_iv_noconst(c);
2357 memcpy(iv, ptr, arg);
2360 case EVP_CTRL_AEAD_SET_IVLEN:
2364 case EVP_CTRL_CCM_SET_L:
2365 if (arg < 2 || arg > 8)
2368 cctx->aes.ccm.l = arg;
2371 case EVP_CTRL_AEAD_SET_TAG:
2372 if ((arg & 1) || arg < 4 || arg > 16)
2375 enc = EVP_CIPHER_CTX_encrypting(c);
2380 cctx->aes.ccm.tag_set = 1;
2381 buf = EVP_CIPHER_CTX_buf_noconst(c);
2382 memcpy(buf, ptr, arg);
2385 cctx->aes.ccm.m = arg;
2388 case EVP_CTRL_AEAD_GET_TAG:
2389 enc = EVP_CIPHER_CTX_encrypting(c);
2390 if (!enc || !cctx->aes.ccm.tag_set)
2393 if(arg < cctx->aes.ccm.m)
2396 memcpy(ptr, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2397 cctx->aes.ccm.tag_set = 0;
2398 cctx->aes.ccm.iv_set = 0;
2399 cctx->aes.ccm.len_set = 0;
2410 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2412 # ifndef OPENSSL_NO_OCB
2413 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2414 # define S390X_aes_128_ocb_CAPABLE 0
2415 # define S390X_aes_192_ocb_CAPABLE 0
2416 # define S390X_aes_256_ocb_CAPABLE 0
2418 # define s390x_aes_ocb_init_key aes_ocb_init_key
2419 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2420 const unsigned char *iv, int enc);
2421 # define s390x_aes_ocb_cipher aes_ocb_cipher
2422 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2423 const unsigned char *in, size_t len);
2424 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2425 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
2426 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2427 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
2430 # ifndef OPENSSL_NO_SIV
2431 # define S390X_AES_SIV_CTX EVP_AES_SIV_CTX
2432 # define S390X_aes_128_siv_CAPABLE 0
2433 # define S390X_aes_192_siv_CAPABLE 0
2434 # define S390X_aes_256_siv_CAPABLE 0
2436 # define s390x_aes_siv_init_key aes_siv_init_key
2437 # define s390x_aes_siv_cipher aes_siv_cipher
2438 # define s390x_aes_siv_cleanup aes_siv_cleanup
2439 # define s390x_aes_siv_ctrl aes_siv_ctrl
2442 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2444 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2445 nid##_##keylen##_##nmode,blocksize, \
2448 flags | EVP_CIPH_##MODE##_MODE, \
2449 s390x_aes_##mode##_init_key, \
2450 s390x_aes_##mode##_cipher, \
2452 sizeof(S390X_AES_##MODE##_CTX), \
2458 static const EVP_CIPHER aes_##keylen##_##mode = { \
2459 nid##_##keylen##_##nmode, \
2463 flags | EVP_CIPH_##MODE##_MODE, \
2465 aes_##mode##_cipher, \
2467 sizeof(EVP_AES_KEY), \
2473 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2475 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2476 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2479 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2480 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2481 nid##_##keylen##_##mode, \
2483 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
2485 flags | EVP_CIPH_##MODE##_MODE, \
2486 s390x_aes_##mode##_init_key, \
2487 s390x_aes_##mode##_cipher, \
2488 s390x_aes_##mode##_cleanup, \
2489 sizeof(S390X_AES_##MODE##_CTX), \
2492 s390x_aes_##mode##_ctrl, \
2495 static const EVP_CIPHER aes_##keylen##_##mode = { \
2496 nid##_##keylen##_##mode,blocksize, \
2497 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
2499 flags | EVP_CIPH_##MODE##_MODE, \
2500 aes_##mode##_init_key, \
2501 aes_##mode##_cipher, \
2502 aes_##mode##_cleanup, \
2503 sizeof(EVP_AES_##MODE##_CTX), \
2506 aes_##mode##_ctrl, \
2509 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2511 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2512 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2517 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2518 static const EVP_CIPHER aes_##keylen##_##mode = { \
2519 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2520 flags|EVP_CIPH_##MODE##_MODE, \
2522 aes_##mode##_cipher, \
2524 sizeof(EVP_AES_KEY), \
2525 NULL,NULL,NULL,NULL }; \
2526 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2527 { return &aes_##keylen##_##mode; }
2529 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2530 static const EVP_CIPHER aes_##keylen##_##mode = { \
2531 nid##_##keylen##_##mode,blocksize, \
2532 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
2534 flags|EVP_CIPH_##MODE##_MODE, \
2535 aes_##mode##_init_key, \
2536 aes_##mode##_cipher, \
2537 aes_##mode##_cleanup, \
2538 sizeof(EVP_AES_##MODE##_CTX), \
2539 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2540 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2541 { return &aes_##keylen##_##mode; }
2545 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2546 # include "arm_arch.h"
2547 # if __ARM_MAX_ARCH__>=7
2548 # if defined(BSAES_ASM)
2549 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2551 # if defined(VPAES_ASM)
2552 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2554 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2555 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2556 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2557 # define HWAES_encrypt aes_v8_encrypt
2558 # define HWAES_decrypt aes_v8_decrypt
2559 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2560 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2564 #if defined(HWAES_CAPABLE)
2565 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
2567 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
2569 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
2570 const AES_KEY *key);
2571 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
2572 const AES_KEY *key);
2573 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
2574 size_t length, const AES_KEY *key,
2575 unsigned char *ivec, const int enc);
2576 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
2577 size_t len, const AES_KEY *key,
2578 const unsigned char ivec[16]);
2579 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
2580 size_t len, const AES_KEY *key1,
2581 const AES_KEY *key2, const unsigned char iv[16]);
2582 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
2583 size_t len, const AES_KEY *key1,
2584 const AES_KEY *key2, const unsigned char iv[16]);
2587 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2588 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2589 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2590 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2591 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2592 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2593 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2594 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2596 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2597 const unsigned char *iv, int enc)
2600 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2602 mode = EVP_CIPHER_CTX_mode(ctx);
2603 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
2605 #ifdef HWAES_CAPABLE
2606 if (HWAES_CAPABLE) {
2607 ret = HWAES_set_decrypt_key(key,
2608 EVP_CIPHER_CTX_key_length(ctx) * 8,
2610 dat->block = (block128_f) HWAES_decrypt;
2611 dat->stream.cbc = NULL;
2612 # ifdef HWAES_cbc_encrypt
2613 if (mode == EVP_CIPH_CBC_MODE)
2614 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2618 #ifdef BSAES_CAPABLE
2619 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
2620 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2622 dat->block = (block128_f) AES_decrypt;
2623 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
2626 #ifdef VPAES_CAPABLE
2627 if (VPAES_CAPABLE) {
2628 ret = vpaes_set_decrypt_key(key,
2629 EVP_CIPHER_CTX_key_length(ctx) * 8,
2631 dat->block = (block128_f) vpaes_decrypt;
2632 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2633 (cbc128_f) vpaes_cbc_encrypt : NULL;
2637 ret = AES_set_decrypt_key(key,
2638 EVP_CIPHER_CTX_key_length(ctx) * 8,
2640 dat->block = (block128_f) AES_decrypt;
2641 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2642 (cbc128_f) AES_cbc_encrypt : NULL;
2645 #ifdef HWAES_CAPABLE
2646 if (HWAES_CAPABLE) {
2647 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2649 dat->block = (block128_f) HWAES_encrypt;
2650 dat->stream.cbc = NULL;
2651 # ifdef HWAES_cbc_encrypt
2652 if (mode == EVP_CIPH_CBC_MODE)
2653 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2656 # ifdef HWAES_ctr32_encrypt_blocks
2657 if (mode == EVP_CIPH_CTR_MODE)
2658 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2661 (void)0; /* terminate potentially open 'else' */
2664 #ifdef BSAES_CAPABLE
2665 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
2666 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2668 dat->block = (block128_f) AES_encrypt;
2669 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2672 #ifdef VPAES_CAPABLE
2673 if (VPAES_CAPABLE) {
2674 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2676 dat->block = (block128_f) vpaes_encrypt;
2677 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2678 (cbc128_f) vpaes_cbc_encrypt : NULL;
2682 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2684 dat->block = (block128_f) AES_encrypt;
2685 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2686 (cbc128_f) AES_cbc_encrypt : NULL;
2688 if (mode == EVP_CIPH_CTR_MODE)
2689 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
2694 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
2701 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2702 const unsigned char *in, size_t len)
2704 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2706 if (dat->stream.cbc)
2707 (*dat->stream.cbc) (in, out, len, &dat->ks,
2708 EVP_CIPHER_CTX_iv_noconst(ctx),
2709 EVP_CIPHER_CTX_encrypting(ctx));
2710 else if (EVP_CIPHER_CTX_encrypting(ctx))
2711 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
2712 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2714 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
2715 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2720 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2721 const unsigned char *in, size_t len)
2723 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
2725 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2730 for (i = 0, len -= bl; i <= len; i += bl)
2731 (*dat->block) (in + i, out + i, &dat->ks);
2736 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2737 const unsigned char *in, size_t len)
2739 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2741 int num = EVP_CIPHER_CTX_num(ctx);
2742 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
2743 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
2744 EVP_CIPHER_CTX_set_num(ctx, num);
2748 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2749 const unsigned char *in, size_t len)
2751 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2753 int num = EVP_CIPHER_CTX_num(ctx);
2754 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
2755 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2756 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2757 EVP_CIPHER_CTX_set_num(ctx, num);
2761 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2762 const unsigned char *in, size_t len)
2764 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2766 int num = EVP_CIPHER_CTX_num(ctx);
2767 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
2768 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2769 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2770 EVP_CIPHER_CTX_set_num(ctx, num);
2774 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2775 const unsigned char *in, size_t len)
2777 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2779 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
2780 int num = EVP_CIPHER_CTX_num(ctx);
2781 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
2782 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2783 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2784 EVP_CIPHER_CTX_set_num(ctx, num);
2788 while (len >= MAXBITCHUNK) {
2789 int num = EVP_CIPHER_CTX_num(ctx);
2790 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
2791 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2792 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2793 EVP_CIPHER_CTX_set_num(ctx, num);
2799 int num = EVP_CIPHER_CTX_num(ctx);
2800 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
2801 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2802 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2803 EVP_CIPHER_CTX_set_num(ctx, num);
2809 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2810 const unsigned char *in, size_t len)
2812 unsigned int num = EVP_CIPHER_CTX_num(ctx);
2813 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2815 if (dat->stream.ctr)
2816 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
2817 EVP_CIPHER_CTX_iv_noconst(ctx),
2818 EVP_CIPHER_CTX_buf_noconst(ctx),
2819 &num, dat->stream.ctr);
2821 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
2822 EVP_CIPHER_CTX_iv_noconst(ctx),
2823 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
2825 EVP_CIPHER_CTX_set_num(ctx, num);
2829 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2830 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2831 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
2833 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
2835 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2838 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
2839 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
2840 OPENSSL_free(gctx->iv);
2844 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2846 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2851 gctx->ivlen = c->cipher->iv_len;
2855 gctx->tls_aad_len = -1;
2858 case EVP_CTRL_AEAD_SET_IVLEN:
2861 /* Allocate memory for IV if needed */
2862 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
2863 if (gctx->iv != c->iv)
2864 OPENSSL_free(gctx->iv);
2865 if ((gctx->iv = OPENSSL_malloc(arg)) == NULL) {
2866 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2873 case EVP_CTRL_AEAD_SET_TAG:
2874 if (arg <= 0 || arg > 16 || c->encrypt)
2876 memcpy(c->buf, ptr, arg);
2880 case EVP_CTRL_AEAD_GET_TAG:
2881 if (arg <= 0 || arg > 16 || !c->encrypt
2882 || gctx->taglen < 0)
2884 memcpy(ptr, c->buf, arg);
2887 case EVP_CTRL_GET_IV:
2888 if (gctx->iv_gen != 1)
2890 if (gctx->ivlen != arg)
2892 memcpy(ptr, gctx->iv, arg);
2895 case EVP_CTRL_GCM_SET_IV_FIXED:
2896 /* Special case: -1 length restores whole IV */
2898 memcpy(gctx->iv, ptr, gctx->ivlen);
2903 * Fixed field must be at least 4 bytes and invocation field at least
2906 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2909 memcpy(gctx->iv, ptr, arg);
2910 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
2915 case EVP_CTRL_GCM_IV_GEN:
2916 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2918 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2919 if (arg <= 0 || arg > gctx->ivlen)
2921 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2923 * Invocation field will be at least 8 bytes in size and so no need
2924 * to check wrap around or increment more than last 8 bytes.
2926 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2930 case EVP_CTRL_GCM_SET_IV_INV:
2931 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
2933 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2934 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2938 case EVP_CTRL_AEAD_TLS1_AAD:
2939 /* Save the AAD for later use */
2940 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2942 memcpy(c->buf, ptr, arg);
2943 gctx->tls_aad_len = arg;
2944 gctx->tls_enc_records = 0;
2946 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
2947 /* Correct length for explicit IV */
2948 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2950 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2951 /* If decrypting correct for tag too */
2953 if (len < EVP_GCM_TLS_TAG_LEN)
2955 len -= EVP_GCM_TLS_TAG_LEN;
2957 c->buf[arg - 2] = len >> 8;
2958 c->buf[arg - 1] = len & 0xff;
2960 /* Extra padding: tag appended to record */
2961 return EVP_GCM_TLS_TAG_LEN;
2965 EVP_CIPHER_CTX *out = ptr;
2966 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
2967 if (gctx->gcm.key) {
2968 if (gctx->gcm.key != &gctx->ks)
2970 gctx_out->gcm.key = &gctx_out->ks;
2972 if (gctx->iv == c->iv)
2973 gctx_out->iv = out->iv;
2975 if ((gctx_out->iv = OPENSSL_malloc(gctx->ivlen)) == NULL) {
2976 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2979 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2990 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2991 const unsigned char *iv, int enc)
2993 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
2998 #ifdef HWAES_CAPABLE
2999 if (HWAES_CAPABLE) {
3000 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3001 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3002 (block128_f) HWAES_encrypt);
3003 # ifdef HWAES_ctr32_encrypt_blocks
3004 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
3011 #ifdef BSAES_CAPABLE
3012 if (BSAES_CAPABLE) {
3013 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3014 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3015 (block128_f) AES_encrypt);
3016 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
3020 #ifdef VPAES_CAPABLE
3021 if (VPAES_CAPABLE) {
3022 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3023 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3024 (block128_f) vpaes_encrypt);
3029 (void)0; /* terminate potentially open 'else' */
3031 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
3032 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3033 (block128_f) AES_encrypt);
3035 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
3042 * If we have an iv can set it directly, otherwise use saved IV.
3044 if (iv == NULL && gctx->iv_set)
3047 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3052 /* If key set use IV, otherwise copy */
3054 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3056 memcpy(gctx->iv, iv, gctx->ivlen);
3064 * Handle TLS GCM packet format. This consists of the last portion of the IV
3065 * followed by the payload and finally the tag. On encrypt generate IV,
3066 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3070 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3071 const unsigned char *in, size_t len)
3073 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3075 /* Encrypt/decrypt must be performed in place */
3077 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
3081 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3082 * Requirements from SP 800-38D". The requirements is for one party to the
3083 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3086 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
3087 EVPerr(EVP_F_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
3092 * Set IV from start of buffer or generate IV and write to start of
3095 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? EVP_CTRL_GCM_IV_GEN
3096 : EVP_CTRL_GCM_SET_IV_INV,
3097 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
3100 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
3102 /* Fix buffer and length to point to payload */
3103 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3104 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3105 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3107 /* Encrypt payload */
3110 #if defined(AES_GCM_ASM)
3111 if (len >= 32 && AES_GCM_ASM(gctx)) {
3112 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3115 bulk = AES_gcm_encrypt(in, out, len,
3117 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3118 gctx->gcm.len.u[1] += bulk;
3121 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3124 len - bulk, gctx->ctr))
3128 #if defined(AES_GCM_ASM2)
3129 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3130 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3133 bulk = AES_gcm_encrypt(in, out, len,
3135 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3136 gctx->gcm.len.u[1] += bulk;
3139 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3140 in + bulk, out + bulk, len - bulk))
3144 /* Finally write tag */
3145 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
3146 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3151 #if defined(AES_GCM_ASM)
3152 if (len >= 16 && AES_GCM_ASM(gctx)) {
3153 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3156 bulk = AES_gcm_decrypt(in, out, len,
3158 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3159 gctx->gcm.len.u[1] += bulk;
3162 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3165 len - bulk, gctx->ctr))
3169 #if defined(AES_GCM_ASM2)
3170 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3171 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3174 bulk = AES_gcm_decrypt(in, out, len,
3176 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3177 gctx->gcm.len.u[1] += bulk;
3180 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3181 in + bulk, out + bulk, len - bulk))
3185 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
3186 /* If tag mismatch wipe buffer */
3187 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
3188 OPENSSL_cleanse(out, len);
3196 gctx->tls_aad_len = -1;
3200 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3201 const unsigned char *in, size_t len)
3203 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3204 /* If not set up, return error */
3208 if (gctx->tls_aad_len >= 0)
3209 return aes_gcm_tls_cipher(ctx, out, in, len);
3215 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
3217 } else if (ctx->encrypt) {
3220 #if defined(AES_GCM_ASM)
3221 if (len >= 32 && AES_GCM_ASM(gctx)) {
3222 size_t res = (16 - gctx->gcm.mres) % 16;
3224 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3227 bulk = AES_gcm_encrypt(in + res,
3228 out + res, len - res,
3229 gctx->gcm.key, gctx->gcm.Yi.c,
3231 gctx->gcm.len.u[1] += bulk;
3235 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3238 len - bulk, gctx->ctr))
3242 #if defined(AES_GCM_ASM2)
3243 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3244 size_t res = (16 - gctx->gcm.mres) % 16;
3246 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3249 bulk = AES_gcm_encrypt(in + res,
3250 out + res, len - res,
3251 gctx->gcm.key, gctx->gcm.Yi.c,
3253 gctx->gcm.len.u[1] += bulk;
3257 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3258 in + bulk, out + bulk, len - bulk))
3264 #if defined(AES_GCM_ASM)
3265 if (len >= 16 && AES_GCM_ASM(gctx)) {
3266 size_t res = (16 - gctx->gcm.mres) % 16;
3268 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3271 bulk = AES_gcm_decrypt(in + res,
3272 out + res, len - res,
3274 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3275 gctx->gcm.len.u[1] += bulk;
3279 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3282 len - bulk, gctx->ctr))
3286 #if defined(AES_GCM_ASM2)
3287 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3288 size_t res = (16 - gctx->gcm.mres) % 16;
3290 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3293 bulk = AES_gcm_decrypt(in + res,
3294 out + res, len - res,
3296 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3297 gctx->gcm.len.u[1] += bulk;
3301 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3302 in + bulk, out + bulk, len - bulk))
3308 if (!ctx->encrypt) {
3309 if (gctx->taglen < 0)
3311 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
3316 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
3318 /* Don't reuse the IV */
3325 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3326 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3327 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3328 | EVP_CIPH_CUSTOM_COPY)
3330 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
3331 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3332 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
3333 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3334 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
3335 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3337 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3339 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
3340 if (type == EVP_CTRL_COPY) {
3341 EVP_CIPHER_CTX *out = ptr;
3342 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
3343 if (xctx->xts.key1) {
3344 if (xctx->xts.key1 != &xctx->ks1)
3346 xctx_out->xts.key1 = &xctx_out->ks1;
3348 if (xctx->xts.key2) {
3349 if (xctx->xts.key2 != &xctx->ks2)
3351 xctx_out->xts.key2 = &xctx_out->ks2;
3354 } else if (type != EVP_CTRL_INIT)
3356 /* key1 and key2 are used as an indicator both key and IV are set */
3357 xctx->xts.key1 = NULL;
3358 xctx->xts.key2 = NULL;
3362 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3363 const unsigned char *iv, int enc)
3365 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3372 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
3374 xctx->stream = NULL;
3376 /* key_len is two AES keys */
3377 #ifdef HWAES_CAPABLE
3378 if (HWAES_CAPABLE) {
3380 HWAES_set_encrypt_key(key,
3381 EVP_CIPHER_CTX_key_length(ctx) * 4,
3383 xctx->xts.block1 = (block128_f) HWAES_encrypt;
3384 # ifdef HWAES_xts_encrypt
3385 xctx->stream = HWAES_xts_encrypt;
3388 HWAES_set_decrypt_key(key,
3389 EVP_CIPHER_CTX_key_length(ctx) * 4,
3391 xctx->xts.block1 = (block128_f) HWAES_decrypt;
3392 # ifdef HWAES_xts_decrypt
3393 xctx->stream = HWAES_xts_decrypt;
3397 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3398 EVP_CIPHER_CTX_key_length(ctx) * 4,
3400 xctx->xts.block2 = (block128_f) HWAES_encrypt;
3402 xctx->xts.key1 = &xctx->ks1;
3406 #ifdef BSAES_CAPABLE
3408 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
3411 #ifdef VPAES_CAPABLE
3412 if (VPAES_CAPABLE) {
3414 vpaes_set_encrypt_key(key,
3415 EVP_CIPHER_CTX_key_length(ctx) * 4,
3417 xctx->xts.block1 = (block128_f) vpaes_encrypt;
3419 vpaes_set_decrypt_key(key,
3420 EVP_CIPHER_CTX_key_length(ctx) * 4,
3422 xctx->xts.block1 = (block128_f) vpaes_decrypt;
3425 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3426 EVP_CIPHER_CTX_key_length(ctx) * 4,
3428 xctx->xts.block2 = (block128_f) vpaes_encrypt;
3430 xctx->xts.key1 = &xctx->ks1;
3434 (void)0; /* terminate potentially open 'else' */
3437 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3439 xctx->xts.block1 = (block128_f) AES_encrypt;
3441 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3443 xctx->xts.block1 = (block128_f) AES_decrypt;
3446 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3447 EVP_CIPHER_CTX_key_length(ctx) * 4,
3449 xctx->xts.block2 = (block128_f) AES_encrypt;
3451 xctx->xts.key1 = &xctx->ks1;
3455 xctx->xts.key2 = &xctx->ks2;
3456 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
3462 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3463 const unsigned char *in, size_t len)
3465 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3467 if (xctx->xts.key1 == NULL
3468 || xctx->xts.key2 == NULL
3471 || len < AES_BLOCK_SIZE)
3475 * Verify that the two keys are different.
3477 * This addresses the vulnerability described in Rogaway's September 2004
3478 * paper (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf):
3479 * "Efficient Instantiations of Tweakable Blockciphers and Refinements
3480 * to Modes OCB and PMAC".
3482 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states that:
3483 * "The check for Key_1 != Key_2 shall be done at any place BEFORE
3484 * using the keys in the XTS-AES algorithm to process data with them."
3486 if (CRYPTO_memcmp(xctx->xts.key1, xctx->xts.key2,
3487 EVP_CIPHER_CTX_key_length(ctx) / 2) == 0)
3491 (*xctx->stream) (in, out, len,
3492 xctx->xts.key1, xctx->xts.key2,
3493 EVP_CIPHER_CTX_iv_noconst(ctx));
3494 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
3496 EVP_CIPHER_CTX_encrypting(ctx)))
3501 #define aes_xts_cleanup NULL
3503 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3504 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3505 | EVP_CIPH_CUSTOM_COPY)
3507 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
3508 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
3510 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3512 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
3521 cctx->tls_aad_len = -1;
3524 case EVP_CTRL_AEAD_TLS1_AAD:
3525 /* Save the AAD for later use */
3526 if (arg != EVP_AEAD_TLS1_AAD_LEN)
3528 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3529 cctx->tls_aad_len = arg;
3532 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
3533 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
3534 /* Correct length for explicit IV */
3535 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
3537 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
3538 /* If decrypting correct for tag too */
3539 if (!EVP_CIPHER_CTX_encrypting(c)) {
3544 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
3545 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
3547 /* Extra padding: tag appended to record */
3550 case EVP_CTRL_CCM_SET_IV_FIXED:
3551 /* Sanity check length */
3552 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
3554 /* Just copy to first part of IV */
3555 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
3558 case EVP_CTRL_AEAD_SET_IVLEN:
3561 case EVP_CTRL_CCM_SET_L:
3562 if (arg < 2 || arg > 8)
3567 case EVP_CTRL_AEAD_SET_TAG:
3568 if ((arg & 1) || arg < 4 || arg > 16)
3570 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
3574 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3579 case EVP_CTRL_AEAD_GET_TAG:
3580 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
3582 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
3591 EVP_CIPHER_CTX *out = ptr;
3592 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
3593 if (cctx->ccm.key) {
3594 if (cctx->ccm.key != &cctx->ks)
3596 cctx_out->ccm.key = &cctx_out->ks;
3607 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3608 const unsigned char *iv, int enc)
3610 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3615 #ifdef HWAES_CAPABLE
3616 if (HWAES_CAPABLE) {
3617 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3620 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3621 &cctx->ks, (block128_f) HWAES_encrypt);
3627 #ifdef VPAES_CAPABLE
3628 if (VPAES_CAPABLE) {
3629 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3631 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3632 &cctx->ks, (block128_f) vpaes_encrypt);
3638 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3640 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3641 &cctx->ks, (block128_f) AES_encrypt);
3646 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
3652 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3653 const unsigned char *in, size_t len)
3655 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3656 CCM128_CONTEXT *ccm = &cctx->ccm;
3657 /* Encrypt/decrypt must be performed in place */
3658 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
3660 /* If encrypting set explicit IV from sequence number (start of AAD) */
3661 if (EVP_CIPHER_CTX_encrypting(ctx))
3662 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
3663 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3664 /* Get rest of IV from explicit IV */
3665 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
3666 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3667 /* Correct length value */
3668 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3669 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
3673 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
3674 /* Fix buffer to point to payload */
3675 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3676 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3677 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3678 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3680 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3682 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
3684 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3686 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3688 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3689 unsigned char tag[16];
3690 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3691 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
3695 OPENSSL_cleanse(out, len);
3700 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3701 const unsigned char *in, size_t len)
3703 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3704 CCM128_CONTEXT *ccm = &cctx->ccm;
3705 /* If not set up, return error */
3709 if (cctx->tls_aad_len >= 0)
3710 return aes_ccm_tls_cipher(ctx, out, in, len);
3712 /* EVP_*Final() doesn't return any data */
3713 if (in == NULL && out != NULL)
3719 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
3723 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3729 /* If have AAD need message length */
3730 if (!cctx->len_set && len)
3732 CRYPTO_ccm128_aad(ccm, in, len);
3735 /* If not set length yet do it */
3736 if (!cctx->len_set) {
3737 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3742 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3743 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3745 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3751 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3753 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3754 unsigned char tag[16];
3755 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3756 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
3762 OPENSSL_cleanse(out, len);
3770 #define aes_ccm_cleanup NULL
3772 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
3773 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3774 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
3775 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3776 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
3777 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3784 /* Indicates if IV has been set */
3788 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3789 const unsigned char *iv, int enc)
3791 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3795 if (EVP_CIPHER_CTX_encrypting(ctx))
3796 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3799 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3805 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
3806 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
3811 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3812 const unsigned char *in, size_t inlen)
3814 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3816 /* AES wrap with padding has IV length of 4, without padding 8 */
3817 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
3818 /* No final operation so always return zero length */
3821 /* Input length must always be non-zero */
3824 /* If decrypting need at least 16 bytes and multiple of 8 */
3825 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
3827 /* If not padding input must be multiple of 8 */
3828 if (!pad && inlen & 0x7)
3830 if (is_partially_overlapping(out, in, inlen)) {
3831 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3835 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3836 /* If padding round up to multiple of 8 */
3838 inlen = (inlen + 7) / 8 * 8;
3843 * If not padding output will be exactly 8 bytes smaller than
3844 * input. If padding it will be at least 8 bytes smaller but we
3845 * don't know how much.
3851 if (EVP_CIPHER_CTX_encrypting(ctx))
3852 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3854 (block128_f) AES_encrypt);
3856 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3858 (block128_f) AES_decrypt);
3860 if (EVP_CIPHER_CTX_encrypting(ctx))
3861 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3862 out, in, inlen, (block128_f) AES_encrypt);
3864 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3865 out, in, inlen, (block128_f) AES_decrypt);
3867 return rv ? (int)rv : -1;
3870 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3871 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3872 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3874 static const EVP_CIPHER aes_128_wrap = {
3876 8, 16, 8, WRAP_FLAGS,
3877 aes_wrap_init_key, aes_wrap_cipher,
3879 sizeof(EVP_AES_WRAP_CTX),
3880 NULL, NULL, NULL, NULL
3883 const EVP_CIPHER *EVP_aes_128_wrap(void)
3885 return &aes_128_wrap;
3888 static const EVP_CIPHER aes_192_wrap = {
3890 8, 24, 8, WRAP_FLAGS,
3891 aes_wrap_init_key, aes_wrap_cipher,
3893 sizeof(EVP_AES_WRAP_CTX),
3894 NULL, NULL, NULL, NULL
3897 const EVP_CIPHER *EVP_aes_192_wrap(void)
3899 return &aes_192_wrap;
3902 static const EVP_CIPHER aes_256_wrap = {
3904 8, 32, 8, WRAP_FLAGS,
3905 aes_wrap_init_key, aes_wrap_cipher,
3907 sizeof(EVP_AES_WRAP_CTX),
3908 NULL, NULL, NULL, NULL
3911 const EVP_CIPHER *EVP_aes_256_wrap(void)
3913 return &aes_256_wrap;
3916 static const EVP_CIPHER aes_128_wrap_pad = {
3917 NID_id_aes128_wrap_pad,
3918 8, 16, 4, WRAP_FLAGS,
3919 aes_wrap_init_key, aes_wrap_cipher,
3921 sizeof(EVP_AES_WRAP_CTX),
3922 NULL, NULL, NULL, NULL
3925 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
3927 return &aes_128_wrap_pad;
3930 static const EVP_CIPHER aes_192_wrap_pad = {
3931 NID_id_aes192_wrap_pad,
3932 8, 24, 4, WRAP_FLAGS,
3933 aes_wrap_init_key, aes_wrap_cipher,
3935 sizeof(EVP_AES_WRAP_CTX),
3936 NULL, NULL, NULL, NULL
3939 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
3941 return &aes_192_wrap_pad;
3944 static const EVP_CIPHER aes_256_wrap_pad = {
3945 NID_id_aes256_wrap_pad,
3946 8, 32, 4, WRAP_FLAGS,
3947 aes_wrap_init_key, aes_wrap_cipher,
3949 sizeof(EVP_AES_WRAP_CTX),
3950 NULL, NULL, NULL, NULL
3953 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
3955 return &aes_256_wrap_pad;
3958 #ifndef OPENSSL_NO_OCB
3959 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3961 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
3962 EVP_CIPHER_CTX *newc;
3963 EVP_AES_OCB_CTX *new_octx;
3969 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
3970 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
3972 octx->data_buf_len = 0;
3973 octx->aad_buf_len = 0;
3976 case EVP_CTRL_AEAD_SET_IVLEN:
3977 /* IV len must be 1 to 15 */
3978 if (arg <= 0 || arg > 15)
3984 case EVP_CTRL_AEAD_SET_TAG:
3986 /* Tag len must be 0 to 16 */
3987 if (arg < 0 || arg > 16)
3993 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
3995 memcpy(octx->tag, ptr, arg);
3998 case EVP_CTRL_AEAD_GET_TAG:
3999 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
4002 memcpy(ptr, octx->tag, arg);
4006 newc = (EVP_CIPHER_CTX *)ptr;
4007 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
4008 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
4009 &new_octx->ksenc.ks,
4010 &new_octx->ksdec.ks);
4018 # ifdef HWAES_CAPABLE
4019 # ifdef HWAES_ocb_encrypt
4020 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
4021 size_t blocks, const void *key,
4022 size_t start_block_num,
4023 unsigned char offset_i[16],
4024 const unsigned char L_[][16],
4025 unsigned char checksum[16]);
4027 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
4029 # ifdef HWAES_ocb_decrypt
4030 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
4031 size_t blocks, const void *key,
4032 size_t start_block_num,
4033 unsigned char offset_i[16],
4034 const unsigned char L_[][16],
4035 unsigned char checksum[16]);
4037 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
4041 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
4042 const unsigned char *iv, int enc)
4044 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4050 * We set both the encrypt and decrypt key here because decrypt
4051 * needs both. We could possibly optimise to remove setting the
4052 * decrypt for an encryption operation.
4054 # ifdef HWAES_CAPABLE
4055 if (HWAES_CAPABLE) {
4056 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4058 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4060 if (!CRYPTO_ocb128_init(&octx->ocb,
4061 &octx->ksenc.ks, &octx->ksdec.ks,
4062 (block128_f) HWAES_encrypt,
4063 (block128_f) HWAES_decrypt,
4064 enc ? HWAES_ocb_encrypt
4065 : HWAES_ocb_decrypt))
4070 # ifdef VPAES_CAPABLE
4071 if (VPAES_CAPABLE) {
4072 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4074 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4076 if (!CRYPTO_ocb128_init(&octx->ocb,
4077 &octx->ksenc.ks, &octx->ksdec.ks,
4078 (block128_f) vpaes_encrypt,
4079 (block128_f) vpaes_decrypt,
4085 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4087 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4089 if (!CRYPTO_ocb128_init(&octx->ocb,
4090 &octx->ksenc.ks, &octx->ksdec.ks,
4091 (block128_f) AES_encrypt,
4092 (block128_f) AES_decrypt,
4099 * If we have an iv we can set it directly, otherwise use saved IV.
4101 if (iv == NULL && octx->iv_set)
4104 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
4111 /* If key set use IV, otherwise copy */
4113 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
4115 memcpy(octx->iv, iv, octx->ivlen);
4121 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4122 const unsigned char *in, size_t len)
4126 int written_len = 0;
4127 size_t trailing_len;
4128 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4130 /* If IV or Key not set then return error */
4139 * Need to ensure we are only passing full blocks to low level OCB
4140 * routines. We do it here rather than in EVP_EncryptUpdate/
4141 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4142 * and those routines don't support that
4145 /* Are we dealing with AAD or normal data here? */
4147 buf = octx->aad_buf;
4148 buf_len = &(octx->aad_buf_len);
4150 buf = octx->data_buf;
4151 buf_len = &(octx->data_buf_len);
4153 if (is_partially_overlapping(out + *buf_len, in, len)) {
4154 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
4160 * If we've got a partially filled buffer from a previous call then
4161 * use that data first
4164 unsigned int remaining;
4166 remaining = AES_BLOCK_SIZE - (*buf_len);
4167 if (remaining > len) {
4168 memcpy(buf + (*buf_len), in, len);
4172 memcpy(buf + (*buf_len), in, remaining);
4175 * If we get here we've filled the buffer, so process it
4180 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
4182 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4183 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
4187 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
4191 written_len = AES_BLOCK_SIZE;
4194 out += AES_BLOCK_SIZE;
4197 /* Do we have a partial block to handle at the end? */
4198 trailing_len = len % AES_BLOCK_SIZE;
4201 * If we've got some full blocks to handle, then process these first
4203 if (len != trailing_len) {
4205 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
4207 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4208 if (!CRYPTO_ocb128_encrypt
4209 (&octx->ocb, in, out, len - trailing_len))
4212 if (!CRYPTO_ocb128_decrypt
4213 (&octx->ocb, in, out, len - trailing_len))
4216 written_len += len - trailing_len;
4217 in += len - trailing_len;
4220 /* Handle any trailing partial block */
4221 if (trailing_len > 0) {
4222 memcpy(buf, in, trailing_len);
4223 *buf_len = trailing_len;
4229 * First of all empty the buffer of any partial block that we might
4230 * have been provided - both for data and AAD
4232 if (octx->data_buf_len > 0) {
4233 if (EVP_CIPHER_CTX_encrypting(ctx)) {
4234 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
4235 octx->data_buf_len))
4238 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
4239 octx->data_buf_len))
4242 written_len = octx->data_buf_len;
4243 octx->data_buf_len = 0;
4245 if (octx->aad_buf_len > 0) {
4246 if (!CRYPTO_ocb128_aad
4247 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
4249 octx->aad_buf_len = 0;
4251 /* If decrypting then verify */
4252 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
4253 if (octx->taglen < 0)
4255 if (CRYPTO_ocb128_finish(&octx->ocb,
4256 octx->tag, octx->taglen) != 0)
4261 /* If encrypting then just get the tag */
4262 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
4264 /* Don't reuse the IV */
4270 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
4272 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
4273 CRYPTO_ocb128_cleanup(&octx->ocb);
4277 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
4278 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4279 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
4280 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4281 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
4282 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4283 #endif /* OPENSSL_NO_OCB */
4286 #ifndef OPENSSL_NO_SIV
4288 typedef SIV128_CONTEXT EVP_AES_SIV_CTX;
4290 #define aesni_siv_init_key aes_siv_init_key
4291 static int aes_siv_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
4292 const unsigned char *iv, int enc)
4294 const EVP_CIPHER *ctr;
4295 const EVP_CIPHER *cbc;
4296 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
4297 int klen = EVP_CIPHER_CTX_key_length(ctx) / 2;
4304 cbc = EVP_aes_128_cbc();
4305 ctr = EVP_aes_128_ctr();
4308 cbc = EVP_aes_192_cbc();
4309 ctr = EVP_aes_192_ctr();
4312 cbc = EVP_aes_256_cbc();
4313 ctr = EVP_aes_256_ctr();
4319 /* klen is the length of the underlying cipher, not the input key,
4320 which should be twice as long */
4321 return CRYPTO_siv128_init(sctx, key, klen, cbc, ctr);
4324 #define aesni_siv_cipher aes_siv_cipher
4325 static int aes_siv_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4326 const unsigned char *in, size_t len)
4328 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
4330 /* EncryptFinal or DecryptFinal */
4332 return CRYPTO_siv128_finish(sctx);
4334 /* Deal with associated data */
4336 return CRYPTO_siv128_aad(sctx, in, len);
4338 if (EVP_CIPHER_CTX_encrypting(ctx))
4339 return CRYPTO_siv128_encrypt(sctx, in, out, len);
4341 return CRYPTO_siv128_decrypt(sctx, in, out, len);
4344 #define aesni_siv_cleanup aes_siv_cleanup
4345 static int aes_siv_cleanup(EVP_CIPHER_CTX *c)
4347 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
4349 return CRYPTO_siv128_cleanup(sctx);
4353 #define aesni_siv_ctrl aes_siv_ctrl
4354 static int aes_siv_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
4356 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
4357 SIV128_CONTEXT *sctx_out;
4361 return CRYPTO_siv128_cleanup(sctx);
4363 case EVP_CTRL_SET_SPEED:
4364 return CRYPTO_siv128_speed(sctx, arg);
4366 case EVP_CTRL_AEAD_SET_TAG:
4367 if (!EVP_CIPHER_CTX_encrypting(c))
4368 return CRYPTO_siv128_set_tag(sctx, ptr, arg);
4371 case EVP_CTRL_AEAD_GET_TAG:
4372 if (!EVP_CIPHER_CTX_encrypting(c))
4374 return CRYPTO_siv128_get_tag(sctx, ptr, arg);
4377 sctx_out = EVP_C_DATA(SIV128_CONTEXT, (EVP_CIPHER_CTX*)ptr);
4378 return CRYPTO_siv128_copy_ctx(sctx_out, sctx);
4386 #define SIV_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
4387 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
4388 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_COPY \
4389 | EVP_CIPH_CTRL_INIT)
4391 BLOCK_CIPHER_custom(NID_aes, 128, 1, 0, siv, SIV, SIV_FLAGS)
4392 BLOCK_CIPHER_custom(NID_aes, 192, 1, 0, siv, SIV, SIV_FLAGS)
4393 BLOCK_CIPHER_custom(NID_aes, 256, 1, 0, siv, SIV, SIV_FLAGS)