2 * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #include <openssl/crypto.h>
12 #include <openssl/evp.h>
13 #include <openssl/err.h>
16 #include <openssl/aes.h>
17 #include "internal/evp_int.h"
18 #include "modes_lcl.h"
19 #include <openssl/rand.h>
37 } ks
; /* AES key schedule to use */
38 int key_set
; /* Set if key initialised */
39 int iv_set
; /* Set if an iv is set */
41 unsigned char *iv
; /* Temporary IV store */
42 int ivlen
; /* IV length */
44 int iv_gen
; /* It is OK to generate IVs */
45 int tls_aad_len
; /* TLS AAD length */
53 } ks1
, ks2
; /* AES key schedules to use */
55 void (*stream
) (const unsigned char *in
,
56 unsigned char *out
, size_t length
,
57 const AES_KEY
*key1
, const AES_KEY
*key2
,
58 const unsigned char iv
[16]);
65 } ks
; /* AES key schedule to use */
66 int key_set
; /* Set if key initialised */
67 int iv_set
; /* Set if an iv is set */
68 int tag_set
; /* Set if tag is valid */
69 int len_set
; /* Set if message length set */
70 int L
, M
; /* L and M parameters from RFC3610 */
71 int tls_aad_len
; /* TLS AAD length */
76 #ifndef OPENSSL_NO_OCB
81 } ksenc
; /* AES key schedule to use for encryption */
85 } ksdec
; /* AES key schedule to use for decryption */
86 int key_set
; /* Set if key initialised */
87 int iv_set
; /* Set if an iv is set */
89 unsigned char *iv
; /* Temporary IV store */
90 unsigned char tag
[16];
91 unsigned char data_buf
[16]; /* Store partial data blocks */
92 unsigned char aad_buf
[16]; /* Store partial AAD blocks */
95 int ivlen
; /* IV length */
100 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
103 int vpaes_set_encrypt_key(const unsigned char *userKey
, int bits
,
105 int vpaes_set_decrypt_key(const unsigned char *userKey
, int bits
,
108 void vpaes_encrypt(const unsigned char *in
, unsigned char *out
,
110 void vpaes_decrypt(const unsigned char *in
, unsigned char *out
,
113 void vpaes_cbc_encrypt(const unsigned char *in
,
116 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
119 void bsaes_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
120 size_t length
, const AES_KEY
*key
,
121 unsigned char ivec
[16], int enc
);
122 void bsaes_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
123 size_t len
, const AES_KEY
*key
,
124 const unsigned char ivec
[16]);
125 void bsaes_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
126 size_t len
, const AES_KEY
*key1
,
127 const AES_KEY
*key2
, const unsigned char iv
[16]);
128 void bsaes_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
129 size_t len
, const AES_KEY
*key1
,
130 const AES_KEY
*key2
, const unsigned char iv
[16]);
133 void AES_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
134 size_t blocks
, const AES_KEY
*key
,
135 const unsigned char ivec
[AES_BLOCK_SIZE
]);
138 void AES_xts_encrypt(const char *inp
, char *out
, size_t len
,
139 const AES_KEY
*key1
, const AES_KEY
*key2
,
140 const unsigned char iv
[16]);
141 void AES_xts_decrypt(const char *inp
, char *out
, size_t len
,
142 const AES_KEY
*key1
, const AES_KEY
*key2
,
143 const unsigned char iv
[16]);
146 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
147 # include "ppc_arch.h"
149 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
151 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
152 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
153 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
154 # define HWAES_encrypt aes_p8_encrypt
155 # define HWAES_decrypt aes_p8_decrypt
156 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
157 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
158 # define HWAES_xts_encrypt aes_p8_xts_encrypt
159 # define HWAES_xts_decrypt aes_p8_xts_decrypt
162 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
163 ((defined(__i386) || defined(__i386__) || \
164 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
165 defined(__x86_64) || defined(__x86_64__) || \
166 defined(_M_AMD64) || defined(_M_X64) )
168 extern unsigned int OPENSSL_ia32cap_P
[];
171 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
174 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
179 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
181 int aesni_set_encrypt_key(const unsigned char *userKey
, int bits
,
183 int aesni_set_decrypt_key(const unsigned char *userKey
, int bits
,
186 void aesni_encrypt(const unsigned char *in
, unsigned char *out
,
188 void aesni_decrypt(const unsigned char *in
, unsigned char *out
,
191 void aesni_ecb_encrypt(const unsigned char *in
,
193 size_t length
, const AES_KEY
*key
, int enc
);
194 void aesni_cbc_encrypt(const unsigned char *in
,
197 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
199 void aesni_ctr32_encrypt_blocks(const unsigned char *in
,
202 const void *key
, const unsigned char *ivec
);
204 void aesni_xts_encrypt(const unsigned char *in
,
207 const AES_KEY
*key1
, const AES_KEY
*key2
,
208 const unsigned char iv
[16]);
210 void aesni_xts_decrypt(const unsigned char *in
,
213 const AES_KEY
*key1
, const AES_KEY
*key2
,
214 const unsigned char iv
[16]);
216 void aesni_ccm64_encrypt_blocks(const unsigned char *in
,
220 const unsigned char ivec
[16],
221 unsigned char cmac
[16]);
223 void aesni_ccm64_decrypt_blocks(const unsigned char *in
,
227 const unsigned char ivec
[16],
228 unsigned char cmac
[16]);
230 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
231 size_t aesni_gcm_encrypt(const unsigned char *in
,
234 const void *key
, unsigned char ivec
[16], u64
*Xi
);
235 # define AES_gcm_encrypt aesni_gcm_encrypt
236 size_t aesni_gcm_decrypt(const unsigned char *in
,
239 const void *key
, unsigned char ivec
[16], u64
*Xi
);
240 # define AES_gcm_decrypt aesni_gcm_decrypt
241 void gcm_ghash_avx(u64 Xi
[2], const u128 Htable
[16], const u8
*in
,
243 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
244 gctx->gcm.ghash==gcm_ghash_avx)
245 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
246 gctx->gcm.ghash==gcm_ghash_avx)
247 # undef AES_GCM_ASM2 /* minor size optimization */
250 static int aesni_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
251 const unsigned char *iv
, int enc
)
254 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
256 mode
= EVP_CIPHER_CTX_mode(ctx
);
257 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
259 ret
= aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
261 dat
->block
= (block128_f
) aesni_decrypt
;
262 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
263 (cbc128_f
) aesni_cbc_encrypt
: NULL
;
265 ret
= aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
267 dat
->block
= (block128_f
) aesni_encrypt
;
268 if (mode
== EVP_CIPH_CBC_MODE
)
269 dat
->stream
.cbc
= (cbc128_f
) aesni_cbc_encrypt
;
270 else if (mode
== EVP_CIPH_CTR_MODE
)
271 dat
->stream
.ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
273 dat
->stream
.cbc
= NULL
;
277 EVPerr(EVP_F_AESNI_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
284 static int aesni_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
285 const unsigned char *in
, size_t len
)
287 aesni_cbc_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
288 EVP_CIPHER_CTX_iv_noconst(ctx
),
289 EVP_CIPHER_CTX_encrypting(ctx
));
294 static int aesni_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
295 const unsigned char *in
, size_t len
)
297 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
302 aesni_ecb_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
303 EVP_CIPHER_CTX_encrypting(ctx
));
308 # define aesni_ofb_cipher aes_ofb_cipher
309 static int aesni_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
310 const unsigned char *in
, size_t len
);
312 # define aesni_cfb_cipher aes_cfb_cipher
313 static int aesni_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
314 const unsigned char *in
, size_t len
);
316 # define aesni_cfb8_cipher aes_cfb8_cipher
317 static int aesni_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
318 const unsigned char *in
, size_t len
);
320 # define aesni_cfb1_cipher aes_cfb1_cipher
321 static int aesni_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
322 const unsigned char *in
, size_t len
);
324 # define aesni_ctr_cipher aes_ctr_cipher
325 static int aesni_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
326 const unsigned char *in
, size_t len
);
328 static int aesni_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
329 const unsigned char *iv
, int enc
)
331 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
335 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
337 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
, (block128_f
) aesni_encrypt
);
338 gctx
->ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
340 * If we have an iv can set it directly, otherwise use saved IV.
342 if (iv
== NULL
&& gctx
->iv_set
)
345 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
350 /* If key set use IV, otherwise copy */
352 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
354 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
361 # define aesni_gcm_cipher aes_gcm_cipher
362 static int aesni_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
363 const unsigned char *in
, size_t len
);
365 static int aesni_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
366 const unsigned char *iv
, int enc
)
368 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
373 /* key_len is two AES keys */
375 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
377 xctx
->xts
.block1
= (block128_f
) aesni_encrypt
;
378 xctx
->stream
= aesni_xts_encrypt
;
380 aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
382 xctx
->xts
.block1
= (block128_f
) aesni_decrypt
;
383 xctx
->stream
= aesni_xts_decrypt
;
386 aesni_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
387 EVP_CIPHER_CTX_key_length(ctx
) * 4,
389 xctx
->xts
.block2
= (block128_f
) aesni_encrypt
;
391 xctx
->xts
.key1
= &xctx
->ks1
;
395 xctx
->xts
.key2
= &xctx
->ks2
;
396 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
402 # define aesni_xts_cipher aes_xts_cipher
403 static int aesni_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
404 const unsigned char *in
, size_t len
);
406 static int aesni_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
407 const unsigned char *iv
, int enc
)
409 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
413 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
415 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
416 &cctx
->ks
, (block128_f
) aesni_encrypt
);
417 cctx
->str
= enc
? (ccm128_f
) aesni_ccm64_encrypt_blocks
:
418 (ccm128_f
) aesni_ccm64_decrypt_blocks
;
422 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
428 # define aesni_ccm_cipher aes_ccm_cipher
429 static int aesni_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
430 const unsigned char *in
, size_t len
);
432 # ifndef OPENSSL_NO_OCB
433 void aesni_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
434 size_t blocks
, const void *key
,
435 size_t start_block_num
,
436 unsigned char offset_i
[16],
437 const unsigned char L_
[][16],
438 unsigned char checksum
[16]);
439 void aesni_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
440 size_t blocks
, const void *key
,
441 size_t start_block_num
,
442 unsigned char offset_i
[16],
443 const unsigned char L_
[][16],
444 unsigned char checksum
[16]);
446 static int aesni_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
447 const unsigned char *iv
, int enc
)
449 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
455 * We set both the encrypt and decrypt key here because decrypt
456 * needs both. We could possibly optimise to remove setting the
457 * decrypt for an encryption operation.
459 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
461 aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
463 if (!CRYPTO_ocb128_init(&octx
->ocb
,
464 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
465 (block128_f
) aesni_encrypt
,
466 (block128_f
) aesni_decrypt
,
467 enc
? aesni_ocb_encrypt
468 : aesni_ocb_decrypt
))
474 * If we have an iv we can set it directly, otherwise use saved IV.
476 if (iv
== NULL
&& octx
->iv_set
)
479 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
486 /* If key set use IV, otherwise copy */
488 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
490 memcpy(octx
->iv
, iv
, octx
->ivlen
);
496 # define aesni_ocb_cipher aes_ocb_cipher
497 static int aesni_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
498 const unsigned char *in
, size_t len
);
499 # endif /* OPENSSL_NO_OCB */
501 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
502 static const EVP_CIPHER aesni_##keylen##_##mode = { \
503 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
504 flags|EVP_CIPH_##MODE##_MODE, \
506 aesni_##mode##_cipher, \
508 sizeof(EVP_AES_KEY), \
509 NULL,NULL,NULL,NULL }; \
510 static const EVP_CIPHER aes_##keylen##_##mode = { \
511 nid##_##keylen##_##nmode,blocksize, \
513 flags|EVP_CIPH_##MODE##_MODE, \
515 aes_##mode##_cipher, \
517 sizeof(EVP_AES_KEY), \
518 NULL,NULL,NULL,NULL }; \
519 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
520 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
522 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
523 static const EVP_CIPHER aesni_##keylen##_##mode = { \
524 nid##_##keylen##_##mode,blocksize, \
525 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
526 flags|EVP_CIPH_##MODE##_MODE, \
527 aesni_##mode##_init_key, \
528 aesni_##mode##_cipher, \
529 aes_##mode##_cleanup, \
530 sizeof(EVP_AES_##MODE##_CTX), \
531 NULL,NULL,aes_##mode##_ctrl,NULL }; \
532 static const EVP_CIPHER aes_##keylen##_##mode = { \
533 nid##_##keylen##_##mode,blocksize, \
534 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
535 flags|EVP_CIPH_##MODE##_MODE, \
536 aes_##mode##_init_key, \
537 aes_##mode##_cipher, \
538 aes_##mode##_cleanup, \
539 sizeof(EVP_AES_##MODE##_CTX), \
540 NULL,NULL,aes_##mode##_ctrl,NULL }; \
541 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
542 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
544 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
546 # include "sparc_arch.h"
548 extern unsigned int OPENSSL_sparcv9cap_P
[];
551 * Initial Fujitsu SPARC64 X support
553 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
554 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
555 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
556 # define HWAES_encrypt aes_fx_encrypt
557 # define HWAES_decrypt aes_fx_decrypt
558 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
559 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
561 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
563 void aes_t4_set_encrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
564 void aes_t4_set_decrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
565 void aes_t4_encrypt(const unsigned char *in
, unsigned char *out
,
567 void aes_t4_decrypt(const unsigned char *in
, unsigned char *out
,
570 * Key-length specific subroutines were chosen for following reason.
571 * Each SPARC T4 core can execute up to 8 threads which share core's
572 * resources. Loading as much key material to registers allows to
573 * minimize references to shared memory interface, as well as amount
574 * of instructions in inner loops [much needed on T4]. But then having
575 * non-key-length specific routines would require conditional branches
576 * either in inner loops or on subroutines' entries. Former is hardly
577 * acceptable, while latter means code size increase to size occupied
578 * by multiple key-length specific subroutines, so why fight?
580 void aes128_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
581 size_t len
, const AES_KEY
*key
,
582 unsigned char *ivec
);
583 void aes128_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
584 size_t len
, const AES_KEY
*key
,
585 unsigned char *ivec
);
586 void aes192_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
587 size_t len
, const AES_KEY
*key
,
588 unsigned char *ivec
);
589 void aes192_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
590 size_t len
, const AES_KEY
*key
,
591 unsigned char *ivec
);
592 void aes256_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
593 size_t len
, const AES_KEY
*key
,
594 unsigned char *ivec
);
595 void aes256_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
596 size_t len
, const AES_KEY
*key
,
597 unsigned char *ivec
);
598 void aes128_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
599 size_t blocks
, const AES_KEY
*key
,
600 unsigned char *ivec
);
601 void aes192_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
602 size_t blocks
, const AES_KEY
*key
,
603 unsigned char *ivec
);
604 void aes256_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
605 size_t blocks
, const AES_KEY
*key
,
606 unsigned char *ivec
);
607 void aes128_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
608 size_t blocks
, const AES_KEY
*key1
,
609 const AES_KEY
*key2
, const unsigned char *ivec
);
610 void aes128_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
611 size_t blocks
, const AES_KEY
*key1
,
612 const AES_KEY
*key2
, const unsigned char *ivec
);
613 void aes256_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
614 size_t blocks
, const AES_KEY
*key1
,
615 const AES_KEY
*key2
, const unsigned char *ivec
);
616 void aes256_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
617 size_t blocks
, const AES_KEY
*key1
,
618 const AES_KEY
*key2
, const unsigned char *ivec
);
620 static int aes_t4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
621 const unsigned char *iv
, int enc
)
624 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
626 mode
= EVP_CIPHER_CTX_mode(ctx
);
627 bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
628 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
631 aes_t4_set_decrypt_key(key
, bits
, &dat
->ks
.ks
);
632 dat
->block
= (block128_f
) aes_t4_decrypt
;
635 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
636 (cbc128_f
) aes128_t4_cbc_decrypt
: NULL
;
639 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
640 (cbc128_f
) aes192_t4_cbc_decrypt
: NULL
;
643 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
644 (cbc128_f
) aes256_t4_cbc_decrypt
: NULL
;
651 aes_t4_set_encrypt_key(key
, bits
, &dat
->ks
.ks
);
652 dat
->block
= (block128_f
) aes_t4_encrypt
;
655 if (mode
== EVP_CIPH_CBC_MODE
)
656 dat
->stream
.cbc
= (cbc128_f
) aes128_t4_cbc_encrypt
;
657 else if (mode
== EVP_CIPH_CTR_MODE
)
658 dat
->stream
.ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
660 dat
->stream
.cbc
= NULL
;
663 if (mode
== EVP_CIPH_CBC_MODE
)
664 dat
->stream
.cbc
= (cbc128_f
) aes192_t4_cbc_encrypt
;
665 else if (mode
== EVP_CIPH_CTR_MODE
)
666 dat
->stream
.ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
668 dat
->stream
.cbc
= NULL
;
671 if (mode
== EVP_CIPH_CBC_MODE
)
672 dat
->stream
.cbc
= (cbc128_f
) aes256_t4_cbc_encrypt
;
673 else if (mode
== EVP_CIPH_CTR_MODE
)
674 dat
->stream
.ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
676 dat
->stream
.cbc
= NULL
;
684 EVPerr(EVP_F_AES_T4_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
691 # define aes_t4_cbc_cipher aes_cbc_cipher
692 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
693 const unsigned char *in
, size_t len
);
695 # define aes_t4_ecb_cipher aes_ecb_cipher
696 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
697 const unsigned char *in
, size_t len
);
699 # define aes_t4_ofb_cipher aes_ofb_cipher
700 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
701 const unsigned char *in
, size_t len
);
703 # define aes_t4_cfb_cipher aes_cfb_cipher
704 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
705 const unsigned char *in
, size_t len
);
707 # define aes_t4_cfb8_cipher aes_cfb8_cipher
708 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
709 const unsigned char *in
, size_t len
);
711 # define aes_t4_cfb1_cipher aes_cfb1_cipher
712 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
713 const unsigned char *in
, size_t len
);
715 # define aes_t4_ctr_cipher aes_ctr_cipher
716 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
717 const unsigned char *in
, size_t len
);
719 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
720 const unsigned char *iv
, int enc
)
722 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
726 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
727 aes_t4_set_encrypt_key(key
, bits
, &gctx
->ks
.ks
);
728 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
729 (block128_f
) aes_t4_encrypt
);
732 gctx
->ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
735 gctx
->ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
738 gctx
->ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
744 * If we have an iv can set it directly, otherwise use saved IV.
746 if (iv
== NULL
&& gctx
->iv_set
)
749 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
754 /* If key set use IV, otherwise copy */
756 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
758 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
765 # define aes_t4_gcm_cipher aes_gcm_cipher
766 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
767 const unsigned char *in
, size_t len
);
769 static int aes_t4_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
770 const unsigned char *iv
, int enc
)
772 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
777 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 4;
779 /* key_len is two AES keys */
781 aes_t4_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
782 xctx
->xts
.block1
= (block128_f
) aes_t4_encrypt
;
785 xctx
->stream
= aes128_t4_xts_encrypt
;
788 xctx
->stream
= aes256_t4_xts_encrypt
;
794 aes_t4_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
796 xctx
->xts
.block1
= (block128_f
) aes_t4_decrypt
;
799 xctx
->stream
= aes128_t4_xts_decrypt
;
802 xctx
->stream
= aes256_t4_xts_decrypt
;
809 aes_t4_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
810 EVP_CIPHER_CTX_key_length(ctx
) * 4,
812 xctx
->xts
.block2
= (block128_f
) aes_t4_encrypt
;
814 xctx
->xts
.key1
= &xctx
->ks1
;
818 xctx
->xts
.key2
= &xctx
->ks2
;
819 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
825 # define aes_t4_xts_cipher aes_xts_cipher
826 static int aes_t4_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
827 const unsigned char *in
, size_t len
);
829 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
830 const unsigned char *iv
, int enc
)
832 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
836 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
837 aes_t4_set_encrypt_key(key
, bits
, &cctx
->ks
.ks
);
838 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
839 &cctx
->ks
, (block128_f
) aes_t4_encrypt
);
844 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
850 # define aes_t4_ccm_cipher aes_ccm_cipher
851 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
852 const unsigned char *in
, size_t len
);
854 # ifndef OPENSSL_NO_OCB
855 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
856 const unsigned char *iv
, int enc
)
858 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
864 * We set both the encrypt and decrypt key here because decrypt
865 * needs both. We could possibly optimise to remove setting the
866 * decrypt for an encryption operation.
868 aes_t4_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
870 aes_t4_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
872 if (!CRYPTO_ocb128_init(&octx
->ocb
,
873 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
874 (block128_f
) aes_t4_encrypt
,
875 (block128_f
) aes_t4_decrypt
,
882 * If we have an iv we can set it directly, otherwise use saved IV.
884 if (iv
== NULL
&& octx
->iv_set
)
887 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
894 /* If key set use IV, otherwise copy */
896 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
898 memcpy(octx
->iv
, iv
, octx
->ivlen
);
904 # define aes_t4_ocb_cipher aes_ocb_cipher
905 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
906 const unsigned char *in
, size_t len
);
907 # endif /* OPENSSL_NO_OCB */
909 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
910 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
911 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
912 flags|EVP_CIPH_##MODE##_MODE, \
914 aes_t4_##mode##_cipher, \
916 sizeof(EVP_AES_KEY), \
917 NULL,NULL,NULL,NULL }; \
918 static const EVP_CIPHER aes_##keylen##_##mode = { \
919 nid##_##keylen##_##nmode,blocksize, \
921 flags|EVP_CIPH_##MODE##_MODE, \
923 aes_##mode##_cipher, \
925 sizeof(EVP_AES_KEY), \
926 NULL,NULL,NULL,NULL }; \
927 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
928 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
930 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
931 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
932 nid##_##keylen##_##mode,blocksize, \
933 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
934 flags|EVP_CIPH_##MODE##_MODE, \
935 aes_t4_##mode##_init_key, \
936 aes_t4_##mode##_cipher, \
937 aes_##mode##_cleanup, \
938 sizeof(EVP_AES_##MODE##_CTX), \
939 NULL,NULL,aes_##mode##_ctrl,NULL }; \
940 static const EVP_CIPHER aes_##keylen##_##mode = { \
941 nid##_##keylen##_##mode,blocksize, \
942 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
943 flags|EVP_CIPH_##MODE##_MODE, \
944 aes_##mode##_init_key, \
945 aes_##mode##_cipher, \
946 aes_##mode##_cleanup, \
947 sizeof(EVP_AES_##MODE##_CTX), \
948 NULL,NULL,aes_##mode##_ctrl,NULL }; \
949 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
950 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
954 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
955 static const EVP_CIPHER aes_##keylen##_##mode = { \
956 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
957 flags|EVP_CIPH_##MODE##_MODE, \
959 aes_##mode##_cipher, \
961 sizeof(EVP_AES_KEY), \
962 NULL,NULL,NULL,NULL }; \
963 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
964 { return &aes_##keylen##_##mode; }
966 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
967 static const EVP_CIPHER aes_##keylen##_##mode = { \
968 nid##_##keylen##_##mode,blocksize, \
969 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
970 flags|EVP_CIPH_##MODE##_MODE, \
971 aes_##mode##_init_key, \
972 aes_##mode##_cipher, \
973 aes_##mode##_cleanup, \
974 sizeof(EVP_AES_##MODE##_CTX), \
975 NULL,NULL,aes_##mode##_ctrl,NULL }; \
976 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
977 { return &aes_##keylen##_##mode; }
981 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
982 # include "arm_arch.h"
983 # if __ARM_MAX_ARCH__>=7
984 # if defined(BSAES_ASM)
985 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
987 # if defined(VPAES_ASM)
988 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
990 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
991 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
992 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
993 # define HWAES_encrypt aes_v8_encrypt
994 # define HWAES_decrypt aes_v8_decrypt
995 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
996 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
1000 #if defined(HWAES_CAPABLE)
1001 int HWAES_set_encrypt_key(const unsigned char *userKey
, const int bits
,
1003 int HWAES_set_decrypt_key(const unsigned char *userKey
, const int bits
,
1005 void HWAES_encrypt(const unsigned char *in
, unsigned char *out
,
1006 const AES_KEY
*key
);
1007 void HWAES_decrypt(const unsigned char *in
, unsigned char *out
,
1008 const AES_KEY
*key
);
1009 void HWAES_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
1010 size_t length
, const AES_KEY
*key
,
1011 unsigned char *ivec
, const int enc
);
1012 void HWAES_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
1013 size_t len
, const AES_KEY
*key
,
1014 const unsigned char ivec
[16]);
1015 void HWAES_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
1016 size_t len
, const AES_KEY
*key1
,
1017 const AES_KEY
*key2
, const unsigned char iv
[16]);
1018 void HWAES_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
1019 size_t len
, const AES_KEY
*key1
,
1020 const AES_KEY
*key2
, const unsigned char iv
[16]);
1023 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
1024 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1025 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1026 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1027 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
1028 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
1029 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
1030 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
1032 static int aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
1033 const unsigned char *iv
, int enc
)
1036 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1038 mode
= EVP_CIPHER_CTX_mode(ctx
);
1039 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
1041 #ifdef HWAES_CAPABLE
1042 if (HWAES_CAPABLE
) {
1043 ret
= HWAES_set_decrypt_key(key
,
1044 EVP_CIPHER_CTX_key_length(ctx
) * 8,
1046 dat
->block
= (block128_f
) HWAES_decrypt
;
1047 dat
->stream
.cbc
= NULL
;
1048 # ifdef HWAES_cbc_encrypt
1049 if (mode
== EVP_CIPH_CBC_MODE
)
1050 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
1054 #ifdef BSAES_CAPABLE
1055 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CBC_MODE
) {
1056 ret
= AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1058 dat
->block
= (block128_f
) AES_decrypt
;
1059 dat
->stream
.cbc
= (cbc128_f
) bsaes_cbc_encrypt
;
1062 #ifdef VPAES_CAPABLE
1063 if (VPAES_CAPABLE
) {
1064 ret
= vpaes_set_decrypt_key(key
,
1065 EVP_CIPHER_CTX_key_length(ctx
) * 8,
1067 dat
->block
= (block128_f
) vpaes_decrypt
;
1068 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
1069 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
1073 ret
= AES_set_decrypt_key(key
,
1074 EVP_CIPHER_CTX_key_length(ctx
) * 8,
1076 dat
->block
= (block128_f
) AES_decrypt
;
1077 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
1078 (cbc128_f
) AES_cbc_encrypt
: NULL
;
1081 #ifdef HWAES_CAPABLE
1082 if (HWAES_CAPABLE
) {
1083 ret
= HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1085 dat
->block
= (block128_f
) HWAES_encrypt
;
1086 dat
->stream
.cbc
= NULL
;
1087 # ifdef HWAES_cbc_encrypt
1088 if (mode
== EVP_CIPH_CBC_MODE
)
1089 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
1092 # ifdef HWAES_ctr32_encrypt_blocks
1093 if (mode
== EVP_CIPH_CTR_MODE
)
1094 dat
->stream
.ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
1097 (void)0; /* terminate potentially open 'else' */
1100 #ifdef BSAES_CAPABLE
1101 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CTR_MODE
) {
1102 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1104 dat
->block
= (block128_f
) AES_encrypt
;
1105 dat
->stream
.ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
1108 #ifdef VPAES_CAPABLE
1109 if (VPAES_CAPABLE
) {
1110 ret
= vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1112 dat
->block
= (block128_f
) vpaes_encrypt
;
1113 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
1114 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
1118 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1120 dat
->block
= (block128_f
) AES_encrypt
;
1121 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
1122 (cbc128_f
) AES_cbc_encrypt
: NULL
;
1124 if (mode
== EVP_CIPH_CTR_MODE
)
1125 dat
->stream
.ctr
= (ctr128_f
) AES_ctr32_encrypt
;
1130 EVPerr(EVP_F_AES_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
1137 static int aes_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1138 const unsigned char *in
, size_t len
)
1140 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1142 if (dat
->stream
.cbc
)
1143 (*dat
->stream
.cbc
) (in
, out
, len
, &dat
->ks
,
1144 EVP_CIPHER_CTX_iv_noconst(ctx
),
1145 EVP_CIPHER_CTX_encrypting(ctx
));
1146 else if (EVP_CIPHER_CTX_encrypting(ctx
))
1147 CRYPTO_cbc128_encrypt(in
, out
, len
, &dat
->ks
,
1148 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
1150 CRYPTO_cbc128_decrypt(in
, out
, len
, &dat
->ks
,
1151 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
1156 static int aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1157 const unsigned char *in
, size_t len
)
1159 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
1161 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1166 for (i
= 0, len
-= bl
; i
<= len
; i
+= bl
)
1167 (*dat
->block
) (in
+ i
, out
+ i
, &dat
->ks
);
1172 static int aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1173 const unsigned char *in
, size_t len
)
1175 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1177 int num
= EVP_CIPHER_CTX_num(ctx
);
1178 CRYPTO_ofb128_encrypt(in
, out
, len
, &dat
->ks
,
1179 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, dat
->block
);
1180 EVP_CIPHER_CTX_set_num(ctx
, num
);
1184 static int aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1185 const unsigned char *in
, size_t len
)
1187 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1189 int num
= EVP_CIPHER_CTX_num(ctx
);
1190 CRYPTO_cfb128_encrypt(in
, out
, len
, &dat
->ks
,
1191 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
1192 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
1193 EVP_CIPHER_CTX_set_num(ctx
, num
);
1197 static int aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1198 const unsigned char *in
, size_t len
)
1200 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1202 int num
= EVP_CIPHER_CTX_num(ctx
);
1203 CRYPTO_cfb128_8_encrypt(in
, out
, len
, &dat
->ks
,
1204 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
1205 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
1206 EVP_CIPHER_CTX_set_num(ctx
, num
);
1210 static int aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1211 const unsigned char *in
, size_t len
)
1213 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1215 if (EVP_CIPHER_CTX_test_flags(ctx
, EVP_CIPH_FLAG_LENGTH_BITS
)) {
1216 int num
= EVP_CIPHER_CTX_num(ctx
);
1217 CRYPTO_cfb128_1_encrypt(in
, out
, len
, &dat
->ks
,
1218 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
1219 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
1220 EVP_CIPHER_CTX_set_num(ctx
, num
);
1224 while (len
>= MAXBITCHUNK
) {
1225 int num
= EVP_CIPHER_CTX_num(ctx
);
1226 CRYPTO_cfb128_1_encrypt(in
, out
, MAXBITCHUNK
* 8, &dat
->ks
,
1227 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
1228 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
1229 EVP_CIPHER_CTX_set_num(ctx
, num
);
1233 int num
= EVP_CIPHER_CTX_num(ctx
);
1234 CRYPTO_cfb128_1_encrypt(in
, out
, len
* 8, &dat
->ks
,
1235 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
1236 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
1237 EVP_CIPHER_CTX_set_num(ctx
, num
);
1243 static int aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1244 const unsigned char *in
, size_t len
)
1246 unsigned int num
= EVP_CIPHER_CTX_num(ctx
);
1247 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
1249 if (dat
->stream
.ctr
)
1250 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
, &dat
->ks
,
1251 EVP_CIPHER_CTX_iv_noconst(ctx
),
1252 EVP_CIPHER_CTX_buf_noconst(ctx
),
1253 &num
, dat
->stream
.ctr
);
1255 CRYPTO_ctr128_encrypt(in
, out
, len
, &dat
->ks
,
1256 EVP_CIPHER_CTX_iv_noconst(ctx
),
1257 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
1259 EVP_CIPHER_CTX_set_num(ctx
, num
);
1263 BLOCK_CIPHER_generic_pack(NID_aes
, 128, 0)
1264 BLOCK_CIPHER_generic_pack(NID_aes
, 192, 0)
1265 BLOCK_CIPHER_generic_pack(NID_aes
, 256, 0)
1267 static int aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
1269 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
1270 OPENSSL_cleanse(&gctx
->gcm
, sizeof(gctx
->gcm
));
1271 if (gctx
->iv
!= EVP_CIPHER_CTX_iv_noconst(c
))
1272 OPENSSL_free(gctx
->iv
);
1276 /* increment counter (64-bit int) by 1 */
1277 static void ctr64_inc(unsigned char *counter
)
1292 static int aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
1294 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
1299 gctx
->ivlen
= EVP_CIPHER_CTX_iv_length(c
);
1300 gctx
->iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1303 gctx
->tls_aad_len
= -1;
1306 case EVP_CTRL_AEAD_SET_IVLEN
:
1309 /* Allocate memory for IV if needed */
1310 if ((arg
> EVP_MAX_IV_LENGTH
) && (arg
> gctx
->ivlen
)) {
1311 if (gctx
->iv
!= EVP_CIPHER_CTX_iv_noconst(c
))
1312 OPENSSL_free(gctx
->iv
);
1313 gctx
->iv
= OPENSSL_malloc(arg
);
1314 if (gctx
->iv
== NULL
)
1320 case EVP_CTRL_AEAD_SET_TAG
:
1321 if (arg
<= 0 || arg
> 16 || EVP_CIPHER_CTX_encrypting(c
))
1323 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
1327 case EVP_CTRL_AEAD_GET_TAG
:
1328 if (arg
<= 0 || arg
> 16 || !EVP_CIPHER_CTX_encrypting(c
)
1329 || gctx
->taglen
< 0)
1331 memcpy(ptr
, EVP_CIPHER_CTX_buf_noconst(c
), arg
);
1334 case EVP_CTRL_GCM_SET_IV_FIXED
:
1335 /* Special case: -1 length restores whole IV */
1337 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
1342 * Fixed field must be at least 4 bytes and invocation field at least
1345 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
1348 memcpy(gctx
->iv
, ptr
, arg
);
1349 if (EVP_CIPHER_CTX_encrypting(c
)
1350 && RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
1355 case EVP_CTRL_GCM_IV_GEN
:
1356 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
1358 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
1359 if (arg
<= 0 || arg
> gctx
->ivlen
)
1361 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
1363 * Invocation field will be at least 8 bytes in size and so no need
1364 * to check wrap around or increment more than last 8 bytes.
1366 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
1370 case EVP_CTRL_GCM_SET_IV_INV
:
1371 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0
1372 || EVP_CIPHER_CTX_encrypting(c
))
1374 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
1375 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
1379 case EVP_CTRL_AEAD_TLS1_AAD
:
1380 /* Save the AAD for later use */
1381 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
1383 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
1384 gctx
->tls_aad_len
= arg
;
1387 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] << 8
1388 | EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1];
1389 /* Correct length for explicit IV */
1390 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1391 /* If decrypting correct for tag too */
1392 if (!EVP_CIPHER_CTX_encrypting(c
))
1393 len
-= EVP_GCM_TLS_TAG_LEN
;
1394 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] = len
>> 8;
1395 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1] = len
& 0xff;
1397 /* Extra padding: tag appended to record */
1398 return EVP_GCM_TLS_TAG_LEN
;
1402 EVP_CIPHER_CTX
*out
= ptr
;
1403 EVP_AES_GCM_CTX
*gctx_out
= EVP_C_DATA(EVP_AES_GCM_CTX
,out
);
1404 if (gctx
->gcm
.key
) {
1405 if (gctx
->gcm
.key
!= &gctx
->ks
)
1407 gctx_out
->gcm
.key
= &gctx_out
->ks
;
1409 if (gctx
->iv
== EVP_CIPHER_CTX_iv_noconst(c
))
1410 gctx_out
->iv
= EVP_CIPHER_CTX_iv_noconst(out
);
1412 gctx_out
->iv
= OPENSSL_malloc(gctx
->ivlen
);
1413 if (gctx_out
->iv
== NULL
)
1415 memcpy(gctx_out
->iv
, gctx
->iv
, gctx
->ivlen
);
1426 static int aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
1427 const unsigned char *iv
, int enc
)
1429 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
1434 #ifdef HWAES_CAPABLE
1435 if (HWAES_CAPABLE
) {
1436 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1438 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
1439 (block128_f
) HWAES_encrypt
);
1440 # ifdef HWAES_ctr32_encrypt_blocks
1441 gctx
->ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
1448 #ifdef BSAES_CAPABLE
1449 if (BSAES_CAPABLE
) {
1450 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1452 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
1453 (block128_f
) AES_encrypt
);
1454 gctx
->ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
1458 #ifdef VPAES_CAPABLE
1459 if (VPAES_CAPABLE
) {
1460 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1462 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
1463 (block128_f
) vpaes_encrypt
);
1468 (void)0; /* terminate potentially open 'else' */
1470 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
1472 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
1473 (block128_f
) AES_encrypt
);
1475 gctx
->ctr
= (ctr128_f
) AES_ctr32_encrypt
;
1482 * If we have an iv can set it directly, otherwise use saved IV.
1484 if (iv
== NULL
&& gctx
->iv_set
)
1487 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
1492 /* If key set use IV, otherwise copy */
1494 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
1496 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
1504 * Handle TLS GCM packet format. This consists of the last portion of the IV
1505 * followed by the payload and finally the tag. On encrypt generate IV,
1506 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1510 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1511 const unsigned char *in
, size_t len
)
1513 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
1515 /* Encrypt/decrypt must be performed in place */
1517 || len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
1520 * Set IV from start of buffer or generate IV and write to start of
1523 if (EVP_CIPHER_CTX_ctrl(ctx
, EVP_CIPHER_CTX_encrypting(ctx
) ?
1524 EVP_CTRL_GCM_IV_GEN
: EVP_CTRL_GCM_SET_IV_INV
,
1525 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
1528 if (CRYPTO_gcm128_aad(&gctx
->gcm
, EVP_CIPHER_CTX_buf_noconst(ctx
),
1531 /* Fix buffer and length to point to payload */
1532 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1533 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1534 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1535 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
1536 /* Encrypt payload */
1539 #if defined(AES_GCM_ASM)
1540 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
1541 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
1544 bulk
= AES_gcm_encrypt(in
, out
, len
,
1546 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
1547 gctx
->gcm
.len
.u
[1] += bulk
;
1550 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
1553 len
- bulk
, gctx
->ctr
))
1557 #if defined(AES_GCM_ASM2)
1558 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
1559 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
1562 bulk
= AES_gcm_encrypt(in
, out
, len
,
1564 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
1565 gctx
->gcm
.len
.u
[1] += bulk
;
1568 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
1569 in
+ bulk
, out
+ bulk
, len
- bulk
))
1573 /* Finally write tag */
1574 CRYPTO_gcm128_tag(&gctx
->gcm
, out
, EVP_GCM_TLS_TAG_LEN
);
1575 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1580 #if defined(AES_GCM_ASM)
1581 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
1582 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
1585 bulk
= AES_gcm_decrypt(in
, out
, len
,
1587 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
1588 gctx
->gcm
.len
.u
[1] += bulk
;
1591 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
1594 len
- bulk
, gctx
->ctr
))
1598 #if defined(AES_GCM_ASM2)
1599 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
1600 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
1603 bulk
= AES_gcm_decrypt(in
, out
, len
,
1605 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
1606 gctx
->gcm
.len
.u
[1] += bulk
;
1609 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
1610 in
+ bulk
, out
+ bulk
, len
- bulk
))
1614 CRYPTO_gcm128_tag(&gctx
->gcm
, EVP_CIPHER_CTX_buf_noconst(ctx
),
1615 EVP_GCM_TLS_TAG_LEN
);
1616 /* If tag mismatch wipe buffer */
1617 if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx
), in
+ len
,
1618 EVP_GCM_TLS_TAG_LEN
)) {
1619 OPENSSL_cleanse(out
, len
);
1627 gctx
->tls_aad_len
= -1;
1631 static int aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1632 const unsigned char *in
, size_t len
)
1634 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
1635 /* If not set up, return error */
1639 if (gctx
->tls_aad_len
>= 0)
1640 return aes_gcm_tls_cipher(ctx
, out
, in
, len
);
1646 if (CRYPTO_gcm128_aad(&gctx
->gcm
, in
, len
))
1648 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
1651 #if defined(AES_GCM_ASM)
1652 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
1653 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
1655 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
1658 bulk
= AES_gcm_encrypt(in
+ res
,
1659 out
+ res
, len
- res
,
1660 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
1662 gctx
->gcm
.len
.u
[1] += bulk
;
1666 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
1669 len
- bulk
, gctx
->ctr
))
1673 #if defined(AES_GCM_ASM2)
1674 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
1675 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
1677 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
1680 bulk
= AES_gcm_encrypt(in
+ res
,
1681 out
+ res
, len
- res
,
1682 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
1684 gctx
->gcm
.len
.u
[1] += bulk
;
1688 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
1689 in
+ bulk
, out
+ bulk
, len
- bulk
))
1695 #if defined(AES_GCM_ASM)
1696 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
1697 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
1699 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
1702 bulk
= AES_gcm_decrypt(in
+ res
,
1703 out
+ res
, len
- res
,
1705 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
1706 gctx
->gcm
.len
.u
[1] += bulk
;
1710 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
1713 len
- bulk
, gctx
->ctr
))
1717 #if defined(AES_GCM_ASM2)
1718 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
1719 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
1721 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
1724 bulk
= AES_gcm_decrypt(in
+ res
,
1725 out
+ res
, len
- res
,
1727 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
1728 gctx
->gcm
.len
.u
[1] += bulk
;
1732 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
1733 in
+ bulk
, out
+ bulk
, len
- bulk
))
1739 if (!EVP_CIPHER_CTX_encrypting(ctx
)) {
1740 if (gctx
->taglen
< 0)
1742 if (CRYPTO_gcm128_finish(&gctx
->gcm
,
1743 EVP_CIPHER_CTX_buf_noconst(ctx
),
1749 CRYPTO_gcm128_tag(&gctx
->gcm
, EVP_CIPHER_CTX_buf_noconst(ctx
), 16);
1751 /* Don't reuse the IV */
1758 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1759 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1760 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1761 | EVP_CIPH_CUSTOM_COPY)
1763 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, gcm
, GCM
,
1764 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
1765 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, gcm
, GCM
,
1766 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
1767 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, gcm
, GCM
,
1768 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
1770 static int aes_xts_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
1772 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,c
);
1773 if (type
== EVP_CTRL_COPY
) {
1774 EVP_CIPHER_CTX
*out
= ptr
;
1775 EVP_AES_XTS_CTX
*xctx_out
= EVP_C_DATA(EVP_AES_XTS_CTX
,out
);
1776 if (xctx
->xts
.key1
) {
1777 if (xctx
->xts
.key1
!= &xctx
->ks1
)
1779 xctx_out
->xts
.key1
= &xctx_out
->ks1
;
1781 if (xctx
->xts
.key2
) {
1782 if (xctx
->xts
.key2
!= &xctx
->ks2
)
1784 xctx_out
->xts
.key2
= &xctx_out
->ks2
;
1787 } else if (type
!= EVP_CTRL_INIT
)
1789 /* key1 and key2 are used as an indicator both key and IV are set */
1790 xctx
->xts
.key1
= NULL
;
1791 xctx
->xts
.key2
= NULL
;
1795 static int aes_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
1796 const unsigned char *iv
, int enc
)
1798 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
1805 xctx
->stream
= enc
? AES_xts_encrypt
: AES_xts_decrypt
;
1807 xctx
->stream
= NULL
;
1809 /* key_len is two AES keys */
1810 #ifdef HWAES_CAPABLE
1811 if (HWAES_CAPABLE
) {
1813 HWAES_set_encrypt_key(key
,
1814 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1816 xctx
->xts
.block1
= (block128_f
) HWAES_encrypt
;
1817 # ifdef HWAES_xts_encrypt
1818 xctx
->stream
= HWAES_xts_encrypt
;
1821 HWAES_set_decrypt_key(key
,
1822 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1824 xctx
->xts
.block1
= (block128_f
) HWAES_decrypt
;
1825 # ifdef HWAES_xts_decrypt
1826 xctx
->stream
= HWAES_xts_decrypt
;
1830 HWAES_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
1831 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1833 xctx
->xts
.block2
= (block128_f
) HWAES_encrypt
;
1835 xctx
->xts
.key1
= &xctx
->ks1
;
1839 #ifdef BSAES_CAPABLE
1841 xctx
->stream
= enc
? bsaes_xts_encrypt
: bsaes_xts_decrypt
;
1844 #ifdef VPAES_CAPABLE
1845 if (VPAES_CAPABLE
) {
1847 vpaes_set_encrypt_key(key
,
1848 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1850 xctx
->xts
.block1
= (block128_f
) vpaes_encrypt
;
1852 vpaes_set_decrypt_key(key
,
1853 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1855 xctx
->xts
.block1
= (block128_f
) vpaes_decrypt
;
1858 vpaes_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
1859 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1861 xctx
->xts
.block2
= (block128_f
) vpaes_encrypt
;
1863 xctx
->xts
.key1
= &xctx
->ks1
;
1867 (void)0; /* terminate potentially open 'else' */
1870 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
1872 xctx
->xts
.block1
= (block128_f
) AES_encrypt
;
1874 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
1876 xctx
->xts
.block1
= (block128_f
) AES_decrypt
;
1879 AES_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
1880 EVP_CIPHER_CTX_key_length(ctx
) * 4,
1882 xctx
->xts
.block2
= (block128_f
) AES_encrypt
;
1884 xctx
->xts
.key1
= &xctx
->ks1
;
1888 xctx
->xts
.key2
= &xctx
->ks2
;
1889 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
1895 static int aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1896 const unsigned char *in
, size_t len
)
1898 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
1899 if (!xctx
->xts
.key1
|| !xctx
->xts
.key2
)
1901 if (!out
|| !in
|| len
< AES_BLOCK_SIZE
)
1904 (*xctx
->stream
) (in
, out
, len
,
1905 xctx
->xts
.key1
, xctx
->xts
.key2
,
1906 EVP_CIPHER_CTX_iv_noconst(ctx
));
1907 else if (CRYPTO_xts128_encrypt(&xctx
->xts
, EVP_CIPHER_CTX_iv_noconst(ctx
),
1909 EVP_CIPHER_CTX_encrypting(ctx
)))
1914 #define aes_xts_cleanup NULL
1916 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1917 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
1918 | EVP_CIPH_CUSTOM_COPY)
1920 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 16, xts
, XTS
, XTS_FLAGS
)
1921 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 16, xts
, XTS
, XTS_FLAGS
)
1923 static int aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
1925 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,c
);
1934 cctx
->tls_aad_len
= -1;
1937 case EVP_CTRL_AEAD_TLS1_AAD
:
1938 /* Save the AAD for later use */
1939 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
1941 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
1942 cctx
->tls_aad_len
= arg
;
1945 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] << 8
1946 | EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1];
1947 /* Correct length for explicit IV */
1948 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
1949 /* If decrypting correct for tag too */
1950 if (!EVP_CIPHER_CTX_encrypting(c
))
1952 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] = len
>> 8;
1953 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1] = len
& 0xff;
1955 /* Extra padding: tag appended to record */
1958 case EVP_CTRL_CCM_SET_IV_FIXED
:
1959 /* Sanity check length */
1960 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
1962 /* Just copy to first part of IV */
1963 memcpy(EVP_CIPHER_CTX_iv_noconst(c
), ptr
, arg
);
1966 case EVP_CTRL_AEAD_SET_IVLEN
:
1968 case EVP_CTRL_CCM_SET_L
:
1969 if (arg
< 2 || arg
> 8)
1974 case EVP_CTRL_AEAD_SET_TAG
:
1975 if ((arg
& 1) || arg
< 4 || arg
> 16)
1977 if (EVP_CIPHER_CTX_encrypting(c
) && ptr
)
1981 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
1986 case EVP_CTRL_AEAD_GET_TAG
:
1987 if (!EVP_CIPHER_CTX_encrypting(c
) || !cctx
->tag_set
)
1989 if (!CRYPTO_ccm128_tag(&cctx
->ccm
, ptr
, (size_t)arg
))
1998 EVP_CIPHER_CTX
*out
= ptr
;
1999 EVP_AES_CCM_CTX
*cctx_out
= EVP_C_DATA(EVP_AES_CCM_CTX
,out
);
2000 if (cctx
->ccm
.key
) {
2001 if (cctx
->ccm
.key
!= &cctx
->ks
)
2003 cctx_out
->ccm
.key
= &cctx_out
->ks
;
2014 static int aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2015 const unsigned char *iv
, int enc
)
2017 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
2022 #ifdef HWAES_CAPABLE
2023 if (HWAES_CAPABLE
) {
2024 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2027 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
2028 &cctx
->ks
, (block128_f
) HWAES_encrypt
);
2034 #ifdef VPAES_CAPABLE
2035 if (VPAES_CAPABLE
) {
2036 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2038 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
2039 &cctx
->ks
, (block128_f
) vpaes_encrypt
);
2045 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2047 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
2048 &cctx
->ks
, (block128_f
) AES_encrypt
);
2053 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
2059 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2060 const unsigned char *in
, size_t len
)
2062 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
2063 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
2064 /* Encrypt/decrypt must be performed in place */
2065 if (out
!= in
|| len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->M
))
2067 /* If encrypting set explicit IV from sequence number (start of AAD) */
2068 if (EVP_CIPHER_CTX_encrypting(ctx
))
2069 memcpy(out
, EVP_CIPHER_CTX_buf_noconst(ctx
),
2070 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2071 /* Get rest of IV from explicit IV */
2072 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
) + EVP_CCM_TLS_FIXED_IV_LEN
, in
,
2073 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2074 /* Correct length value */
2075 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
2076 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
), 15 - cctx
->L
,
2080 CRYPTO_ccm128_aad(ccm
, EVP_CIPHER_CTX_buf_noconst(ctx
), cctx
->tls_aad_len
);
2081 /* Fix buffer to point to payload */
2082 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2083 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2084 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
2085 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
2087 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
2089 if (!CRYPTO_ccm128_tag(ccm
, out
+ len
, cctx
->M
))
2091 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
2093 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
2095 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
2096 unsigned char tag
[16];
2097 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
2098 if (!CRYPTO_memcmp(tag
, in
+ len
, cctx
->M
))
2102 OPENSSL_cleanse(out
, len
);
2107 static int aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2108 const unsigned char *in
, size_t len
)
2110 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
2111 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
2112 /* If not set up, return error */
2116 if (cctx
->tls_aad_len
>= 0)
2117 return aes_ccm_tls_cipher(ctx
, out
, in
, len
);
2122 if (!EVP_CIPHER_CTX_encrypting(ctx
) && !cctx
->tag_set
)
2126 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
2132 /* If have AAD need message length */
2133 if (!cctx
->len_set
&& len
)
2135 CRYPTO_ccm128_aad(ccm
, in
, len
);
2138 /* EVP_*Final() doesn't return any data */
2141 /* If not set length yet do it */
2142 if (!cctx
->len_set
) {
2143 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
2148 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
2149 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
2151 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
2157 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
2159 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
2160 unsigned char tag
[16];
2161 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
2162 if (!CRYPTO_memcmp(tag
, EVP_CIPHER_CTX_buf_noconst(ctx
),
2168 OPENSSL_cleanse(out
, len
);
2176 #define aes_ccm_cleanup NULL
2178 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, ccm
, CCM
,
2179 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
2180 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, ccm
, CCM
,
2181 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
2182 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, ccm
, CCM
,
2183 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
2190 /* Indicates if IV has been set */
2194 static int aes_wrap_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2195 const unsigned char *iv
, int enc
)
2197 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
2201 if (EVP_CIPHER_CTX_encrypting(ctx
))
2202 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2205 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2211 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, EVP_CIPHER_CTX_iv_length(ctx
));
2212 wctx
->iv
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2217 static int aes_wrap_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2218 const unsigned char *in
, size_t inlen
)
2220 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
2222 /* AES wrap with padding has IV length of 4, without padding 8 */
2223 int pad
= EVP_CIPHER_CTX_iv_length(ctx
) == 4;
2224 /* No final operation so always return zero length */
2227 /* Input length must always be non-zero */
2230 /* If decrypting need at least 16 bytes and multiple of 8 */
2231 if (!EVP_CIPHER_CTX_encrypting(ctx
) && (inlen
< 16 || inlen
& 0x7))
2233 /* If not padding input must be multiple of 8 */
2234 if (!pad
&& inlen
& 0x7)
2237 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
2238 /* If padding round up to multiple of 8 */
2240 inlen
= (inlen
+ 7) / 8 * 8;
2245 * If not padding output will be exactly 8 bytes smaller than
2246 * input. If padding it will be at least 8 bytes smaller but we
2247 * don't know how much.
2253 if (EVP_CIPHER_CTX_encrypting(ctx
))
2254 rv
= CRYPTO_128_wrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
2256 (block128_f
) AES_encrypt
);
2258 rv
= CRYPTO_128_unwrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
2260 (block128_f
) AES_decrypt
);
2262 if (EVP_CIPHER_CTX_encrypting(ctx
))
2263 rv
= CRYPTO_128_wrap(&wctx
->ks
.ks
, wctx
->iv
,
2264 out
, in
, inlen
, (block128_f
) AES_encrypt
);
2266 rv
= CRYPTO_128_unwrap(&wctx
->ks
.ks
, wctx
->iv
,
2267 out
, in
, inlen
, (block128_f
) AES_decrypt
);
2269 return rv
? (int)rv
: -1;
2272 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
2273 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2274 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2276 static const EVP_CIPHER aes_128_wrap
= {
2278 8, 16, 8, WRAP_FLAGS
,
2279 aes_wrap_init_key
, aes_wrap_cipher
,
2281 sizeof(EVP_AES_WRAP_CTX
),
2282 NULL
, NULL
, NULL
, NULL
2285 const EVP_CIPHER
*EVP_aes_128_wrap(void)
2287 return &aes_128_wrap
;
2290 static const EVP_CIPHER aes_192_wrap
= {
2292 8, 24, 8, WRAP_FLAGS
,
2293 aes_wrap_init_key
, aes_wrap_cipher
,
2295 sizeof(EVP_AES_WRAP_CTX
),
2296 NULL
, NULL
, NULL
, NULL
2299 const EVP_CIPHER
*EVP_aes_192_wrap(void)
2301 return &aes_192_wrap
;
2304 static const EVP_CIPHER aes_256_wrap
= {
2306 8, 32, 8, WRAP_FLAGS
,
2307 aes_wrap_init_key
, aes_wrap_cipher
,
2309 sizeof(EVP_AES_WRAP_CTX
),
2310 NULL
, NULL
, NULL
, NULL
2313 const EVP_CIPHER
*EVP_aes_256_wrap(void)
2315 return &aes_256_wrap
;
2318 static const EVP_CIPHER aes_128_wrap_pad
= {
2319 NID_id_aes128_wrap_pad
,
2320 8, 16, 4, WRAP_FLAGS
,
2321 aes_wrap_init_key
, aes_wrap_cipher
,
2323 sizeof(EVP_AES_WRAP_CTX
),
2324 NULL
, NULL
, NULL
, NULL
2327 const EVP_CIPHER
*EVP_aes_128_wrap_pad(void)
2329 return &aes_128_wrap_pad
;
2332 static const EVP_CIPHER aes_192_wrap_pad
= {
2333 NID_id_aes192_wrap_pad
,
2334 8, 24, 4, WRAP_FLAGS
,
2335 aes_wrap_init_key
, aes_wrap_cipher
,
2337 sizeof(EVP_AES_WRAP_CTX
),
2338 NULL
, NULL
, NULL
, NULL
2341 const EVP_CIPHER
*EVP_aes_192_wrap_pad(void)
2343 return &aes_192_wrap_pad
;
2346 static const EVP_CIPHER aes_256_wrap_pad
= {
2347 NID_id_aes256_wrap_pad
,
2348 8, 32, 4, WRAP_FLAGS
,
2349 aes_wrap_init_key
, aes_wrap_cipher
,
2351 sizeof(EVP_AES_WRAP_CTX
),
2352 NULL
, NULL
, NULL
, NULL
2355 const EVP_CIPHER
*EVP_aes_256_wrap_pad(void)
2357 return &aes_256_wrap_pad
;
2360 #ifndef OPENSSL_NO_OCB
2361 static int aes_ocb_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2363 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
2364 EVP_CIPHER_CTX
*newc
;
2365 EVP_AES_OCB_CTX
*new_octx
;
2371 octx
->ivlen
= EVP_CIPHER_CTX_iv_length(c
);
2372 octx
->iv
= EVP_CIPHER_CTX_iv_noconst(c
);
2374 octx
->data_buf_len
= 0;
2375 octx
->aad_buf_len
= 0;
2378 case EVP_CTRL_AEAD_SET_IVLEN
:
2379 /* IV len must be 1 to 15 */
2380 if (arg
<= 0 || arg
> 15)
2386 case EVP_CTRL_AEAD_SET_TAG
:
2388 /* Tag len must be 0 to 16 */
2389 if (arg
< 0 || arg
> 16)
2395 if (arg
!= octx
->taglen
|| EVP_CIPHER_CTX_encrypting(c
))
2397 memcpy(octx
->tag
, ptr
, arg
);
2400 case EVP_CTRL_AEAD_GET_TAG
:
2401 if (arg
!= octx
->taglen
|| !EVP_CIPHER_CTX_encrypting(c
))
2404 memcpy(ptr
, octx
->tag
, arg
);
2408 newc
= (EVP_CIPHER_CTX
*)ptr
;
2409 new_octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,newc
);
2410 return CRYPTO_ocb128_copy_ctx(&new_octx
->ocb
, &octx
->ocb
,
2411 &new_octx
->ksenc
.ks
,
2412 &new_octx
->ksdec
.ks
);
2420 # ifdef HWAES_CAPABLE
2421 # ifdef HWAES_ocb_encrypt
2422 void HWAES_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
2423 size_t blocks
, const void *key
,
2424 size_t start_block_num
,
2425 unsigned char offset_i
[16],
2426 const unsigned char L_
[][16],
2427 unsigned char checksum
[16]);
2429 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
2431 # ifdef HWAES_ocb_decrypt
2432 void HWAES_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
2433 size_t blocks
, const void *key
,
2434 size_t start_block_num
,
2435 unsigned char offset_i
[16],
2436 const unsigned char L_
[][16],
2437 unsigned char checksum
[16]);
2439 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
2443 static int aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2444 const unsigned char *iv
, int enc
)
2446 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
2452 * We set both the encrypt and decrypt key here because decrypt
2453 * needs both. We could possibly optimise to remove setting the
2454 * decrypt for an encryption operation.
2456 # ifdef HWAES_CAPABLE
2457 if (HWAES_CAPABLE
) {
2458 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2460 HWAES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2462 if (!CRYPTO_ocb128_init(&octx
->ocb
,
2463 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
2464 (block128_f
) HWAES_encrypt
,
2465 (block128_f
) HWAES_decrypt
,
2466 enc
? HWAES_ocb_encrypt
2467 : HWAES_ocb_decrypt
))
2472 # ifdef VPAES_CAPABLE
2473 if (VPAES_CAPABLE
) {
2474 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2476 vpaes_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2478 if (!CRYPTO_ocb128_init(&octx
->ocb
,
2479 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
2480 (block128_f
) vpaes_encrypt
,
2481 (block128_f
) vpaes_decrypt
,
2487 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2489 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2491 if (!CRYPTO_ocb128_init(&octx
->ocb
,
2492 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
2493 (block128_f
) AES_encrypt
,
2494 (block128_f
) AES_decrypt
,
2501 * If we have an iv we can set it directly, otherwise use saved IV.
2503 if (iv
== NULL
&& octx
->iv_set
)
2506 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
2513 /* If key set use IV, otherwise copy */
2515 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
2517 memcpy(octx
->iv
, iv
, octx
->ivlen
);
2523 static int aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2524 const unsigned char *in
, size_t len
)
2528 int written_len
= 0;
2529 size_t trailing_len
;
2530 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
2532 /* If IV or Key not set then return error */
2541 * Need to ensure we are only passing full blocks to low level OCB
2542 * routines. We do it here rather than in EVP_EncryptUpdate/
2543 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
2544 * and those routines don't support that
2547 /* Are we dealing with AAD or normal data here? */
2549 buf
= octx
->aad_buf
;
2550 buf_len
= &(octx
->aad_buf_len
);
2552 buf
= octx
->data_buf
;
2553 buf_len
= &(octx
->data_buf_len
);
2557 * If we've got a partially filled buffer from a previous call then
2558 * use that data first
2561 unsigned int remaining
;
2563 remaining
= 16 - (*buf_len
);
2564 if (remaining
> len
) {
2565 memcpy(buf
+ (*buf_len
), in
, len
);
2569 memcpy(buf
+ (*buf_len
), in
, remaining
);
2572 * If we get here we've filled the buffer, so process it
2577 if (!CRYPTO_ocb128_aad(&octx
->ocb
, buf
, 16))
2579 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
2580 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, buf
, out
, 16))
2583 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, buf
, out
, 16))
2590 /* Do we have a partial block to handle at the end? */
2591 trailing_len
= len
% 16;
2594 * If we've got some full blocks to handle, then process these first
2596 if (len
!= trailing_len
) {
2598 if (!CRYPTO_ocb128_aad(&octx
->ocb
, in
, len
- trailing_len
))
2600 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
2601 if (!CRYPTO_ocb128_encrypt
2602 (&octx
->ocb
, in
, out
, len
- trailing_len
))
2605 if (!CRYPTO_ocb128_decrypt
2606 (&octx
->ocb
, in
, out
, len
- trailing_len
))
2609 written_len
+= len
- trailing_len
;
2610 in
+= len
- trailing_len
;
2613 /* Handle any trailing partial block */
2615 memcpy(buf
, in
, trailing_len
);
2616 *buf_len
= trailing_len
;
2622 * First of all empty the buffer of any partial block that we might
2623 * have been provided - both for data and AAD
2625 if (octx
->data_buf_len
) {
2626 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
2627 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, octx
->data_buf
, out
,
2628 octx
->data_buf_len
))
2631 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, octx
->data_buf
, out
,
2632 octx
->data_buf_len
))
2635 written_len
= octx
->data_buf_len
;
2636 octx
->data_buf_len
= 0;
2638 if (octx
->aad_buf_len
) {
2639 if (!CRYPTO_ocb128_aad
2640 (&octx
->ocb
, octx
->aad_buf
, octx
->aad_buf_len
))
2642 octx
->aad_buf_len
= 0;
2644 /* If decrypting then verify */
2645 if (!EVP_CIPHER_CTX_encrypting(ctx
)) {
2646 if (octx
->taglen
< 0)
2648 if (CRYPTO_ocb128_finish(&octx
->ocb
,
2649 octx
->tag
, octx
->taglen
) != 0)
2654 /* If encrypting then just get the tag */
2655 if (CRYPTO_ocb128_tag(&octx
->ocb
, octx
->tag
, 16) != 1)
2657 /* Don't reuse the IV */
2663 static int aes_ocb_cleanup(EVP_CIPHER_CTX
*c
)
2665 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
2666 CRYPTO_ocb128_cleanup(&octx
->ocb
);
2670 BLOCK_CIPHER_custom(NID_aes
, 128, 16, 12, ocb
, OCB
,
2671 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
2672 BLOCK_CIPHER_custom(NID_aes
, 192, 16, 12, ocb
, OCB
,
2673 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
2674 BLOCK_CIPHER_custom(NID_aes
, 256, 16, 12, ocb
, OCB
,
2675 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
2676 #endif /* OPENSSL_NO_OCB */