2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #include <openssl/crypto.h>
12 #include <openssl/evp.h>
13 #include <openssl/err.h>
16 #include <openssl/aes.h>
17 #include "internal/evp_int.h"
18 #include "modes_lcl.h"
19 #include <openssl/rand.h>
38 } ks
; /* AES key schedule to use */
39 int key_set
; /* Set if key initialised */
40 int iv_set
; /* Set if an iv is set */
42 unsigned char *iv
; /* Temporary IV store */
43 int ivlen
; /* IV length */
45 int iv_gen
; /* It is OK to generate IVs */
46 int tls_aad_len
; /* TLS AAD length */
47 uint64_t tls_enc_records
; /* Number of TLS records encrypted */
55 } ks1
, ks2
; /* AES key schedules to use */
57 void (*stream
) (const unsigned char *in
,
58 unsigned char *out
, size_t length
,
59 const AES_KEY
*key1
, const AES_KEY
*key2
,
60 const unsigned char iv
[16]);
67 } ks
; /* AES key schedule to use */
68 int key_set
; /* Set if key initialised */
69 int iv_set
; /* Set if an iv is set */
70 int tag_set
; /* Set if tag is valid */
71 int len_set
; /* Set if message length set */
72 int L
, M
; /* L and M parameters from RFC3610 */
73 int tls_aad_len
; /* TLS AAD length */
78 #ifndef OPENSSL_NO_OCB
83 } ksenc
; /* AES key schedule to use for encryption */
87 } ksdec
; /* AES key schedule to use for decryption */
88 int key_set
; /* Set if key initialised */
89 int iv_set
; /* Set if an iv is set */
91 unsigned char *iv
; /* Temporary IV store */
92 unsigned char tag
[16];
93 unsigned char data_buf
[16]; /* Store partial data blocks */
94 unsigned char aad_buf
[16]; /* Store partial AAD blocks */
97 int ivlen
; /* IV length */
102 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
105 int vpaes_set_encrypt_key(const unsigned char *userKey
, int bits
,
107 int vpaes_set_decrypt_key(const unsigned char *userKey
, int bits
,
110 void vpaes_encrypt(const unsigned char *in
, unsigned char *out
,
112 void vpaes_decrypt(const unsigned char *in
, unsigned char *out
,
115 void vpaes_cbc_encrypt(const unsigned char *in
,
118 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
121 void bsaes_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
122 size_t length
, const AES_KEY
*key
,
123 unsigned char ivec
[16], int enc
);
124 void bsaes_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
125 size_t len
, const AES_KEY
*key
,
126 const unsigned char ivec
[16]);
127 void bsaes_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
128 size_t len
, const AES_KEY
*key1
,
129 const AES_KEY
*key2
, const unsigned char iv
[16]);
130 void bsaes_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
131 size_t len
, const AES_KEY
*key1
,
132 const AES_KEY
*key2
, const unsigned char iv
[16]);
135 void AES_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
136 size_t blocks
, const AES_KEY
*key
,
137 const unsigned char ivec
[AES_BLOCK_SIZE
]);
140 void AES_xts_encrypt(const unsigned char *inp
, unsigned char *out
, size_t len
,
141 const AES_KEY
*key1
, const AES_KEY
*key2
,
142 const unsigned char iv
[16]);
143 void AES_xts_decrypt(const unsigned char *inp
, unsigned char *out
, size_t len
,
144 const AES_KEY
*key1
, const AES_KEY
*key2
,
145 const unsigned char iv
[16]);
148 /* increment counter (64-bit int) by 1 */
149 static void ctr64_inc(unsigned char *counter
)
164 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
165 # include "ppc_arch.h"
167 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
169 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
170 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
171 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
172 # define HWAES_encrypt aes_p8_encrypt
173 # define HWAES_decrypt aes_p8_decrypt
174 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
175 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
176 # define HWAES_xts_encrypt aes_p8_xts_encrypt
177 # define HWAES_xts_decrypt aes_p8_xts_decrypt
180 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
181 ((defined(__i386) || defined(__i386__) || \
182 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
183 defined(__x86_64) || defined(__x86_64__) || \
184 defined(_M_AMD64) || defined(_M_X64) )
186 extern unsigned int OPENSSL_ia32cap_P
[];
189 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
192 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
197 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
199 int aesni_set_encrypt_key(const unsigned char *userKey
, int bits
,
201 int aesni_set_decrypt_key(const unsigned char *userKey
, int bits
,
204 void aesni_encrypt(const unsigned char *in
, unsigned char *out
,
206 void aesni_decrypt(const unsigned char *in
, unsigned char *out
,
209 void aesni_ecb_encrypt(const unsigned char *in
,
211 size_t length
, const AES_KEY
*key
, int enc
);
212 void aesni_cbc_encrypt(const unsigned char *in
,
215 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
217 void aesni_ctr32_encrypt_blocks(const unsigned char *in
,
220 const void *key
, const unsigned char *ivec
);
222 void aesni_xts_encrypt(const unsigned char *in
,
225 const AES_KEY
*key1
, const AES_KEY
*key2
,
226 const unsigned char iv
[16]);
228 void aesni_xts_decrypt(const unsigned char *in
,
231 const AES_KEY
*key1
, const AES_KEY
*key2
,
232 const unsigned char iv
[16]);
234 void aesni_ccm64_encrypt_blocks(const unsigned char *in
,
238 const unsigned char ivec
[16],
239 unsigned char cmac
[16]);
241 void aesni_ccm64_decrypt_blocks(const unsigned char *in
,
245 const unsigned char ivec
[16],
246 unsigned char cmac
[16]);
248 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
249 size_t aesni_gcm_encrypt(const unsigned char *in
,
252 const void *key
, unsigned char ivec
[16], u64
*Xi
);
253 # define AES_gcm_encrypt aesni_gcm_encrypt
254 size_t aesni_gcm_decrypt(const unsigned char *in
,
257 const void *key
, unsigned char ivec
[16], u64
*Xi
);
258 # define AES_gcm_decrypt aesni_gcm_decrypt
259 void gcm_ghash_avx(u64 Xi
[2], const u128 Htable
[16], const u8
*in
,
261 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
262 gctx->gcm.ghash==gcm_ghash_avx)
263 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
264 gctx->gcm.ghash==gcm_ghash_avx)
265 # undef AES_GCM_ASM2 /* minor size optimization */
268 static int aesni_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
269 const unsigned char *iv
, int enc
)
272 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
274 mode
= EVP_CIPHER_CTX_mode(ctx
);
275 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
277 ret
= aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
279 dat
->block
= (block128_f
) aesni_decrypt
;
280 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
281 (cbc128_f
) aesni_cbc_encrypt
: NULL
;
283 ret
= aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
285 dat
->block
= (block128_f
) aesni_encrypt
;
286 if (mode
== EVP_CIPH_CBC_MODE
)
287 dat
->stream
.cbc
= (cbc128_f
) aesni_cbc_encrypt
;
288 else if (mode
== EVP_CIPH_CTR_MODE
)
289 dat
->stream
.ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
291 dat
->stream
.cbc
= NULL
;
295 EVPerr(EVP_F_AESNI_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
302 static int aesni_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
303 const unsigned char *in
, size_t len
)
305 aesni_cbc_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
306 EVP_CIPHER_CTX_iv_noconst(ctx
),
307 EVP_CIPHER_CTX_encrypting(ctx
));
312 static int aesni_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
313 const unsigned char *in
, size_t len
)
315 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
320 aesni_ecb_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
321 EVP_CIPHER_CTX_encrypting(ctx
));
326 # define aesni_ofb_cipher aes_ofb_cipher
327 static int aesni_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
328 const unsigned char *in
, size_t len
);
330 # define aesni_cfb_cipher aes_cfb_cipher
331 static int aesni_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
332 const unsigned char *in
, size_t len
);
334 # define aesni_cfb8_cipher aes_cfb8_cipher
335 static int aesni_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
336 const unsigned char *in
, size_t len
);
338 # define aesni_cfb1_cipher aes_cfb1_cipher
339 static int aesni_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
340 const unsigned char *in
, size_t len
);
342 # define aesni_ctr_cipher aes_ctr_cipher
343 static int aesni_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
344 const unsigned char *in
, size_t len
);
346 static int aesni_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
347 const unsigned char *iv
, int enc
)
349 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
353 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
355 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
, (block128_f
) aesni_encrypt
);
356 gctx
->ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
358 * If we have an iv can set it directly, otherwise use saved IV.
360 if (iv
== NULL
&& gctx
->iv_set
)
363 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
368 /* If key set use IV, otherwise copy */
370 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
372 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
379 # define aesni_gcm_cipher aes_gcm_cipher
380 static int aesni_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
381 const unsigned char *in
, size_t len
);
383 static int aesni_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
384 const unsigned char *iv
, int enc
)
386 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
391 /* key_len is two AES keys */
393 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
395 xctx
->xts
.block1
= (block128_f
) aesni_encrypt
;
396 xctx
->stream
= aesni_xts_encrypt
;
398 aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
400 xctx
->xts
.block1
= (block128_f
) aesni_decrypt
;
401 xctx
->stream
= aesni_xts_decrypt
;
404 aesni_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
405 EVP_CIPHER_CTX_key_length(ctx
) * 4,
407 xctx
->xts
.block2
= (block128_f
) aesni_encrypt
;
409 xctx
->xts
.key1
= &xctx
->ks1
;
413 xctx
->xts
.key2
= &xctx
->ks2
;
414 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
420 # define aesni_xts_cipher aes_xts_cipher
421 static int aesni_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
422 const unsigned char *in
, size_t len
);
424 static int aesni_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
425 const unsigned char *iv
, int enc
)
427 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
431 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
433 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
434 &cctx
->ks
, (block128_f
) aesni_encrypt
);
435 cctx
->str
= enc
? (ccm128_f
) aesni_ccm64_encrypt_blocks
:
436 (ccm128_f
) aesni_ccm64_decrypt_blocks
;
440 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
446 # define aesni_ccm_cipher aes_ccm_cipher
447 static int aesni_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
448 const unsigned char *in
, size_t len
);
450 # ifndef OPENSSL_NO_OCB
451 void aesni_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
452 size_t blocks
, const void *key
,
453 size_t start_block_num
,
454 unsigned char offset_i
[16],
455 const unsigned char L_
[][16],
456 unsigned char checksum
[16]);
457 void aesni_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
458 size_t blocks
, const void *key
,
459 size_t start_block_num
,
460 unsigned char offset_i
[16],
461 const unsigned char L_
[][16],
462 unsigned char checksum
[16]);
464 static int aesni_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
465 const unsigned char *iv
, int enc
)
467 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
473 * We set both the encrypt and decrypt key here because decrypt
474 * needs both. We could possibly optimise to remove setting the
475 * decrypt for an encryption operation.
477 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
479 aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
481 if (!CRYPTO_ocb128_init(&octx
->ocb
,
482 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
483 (block128_f
) aesni_encrypt
,
484 (block128_f
) aesni_decrypt
,
485 enc
? aesni_ocb_encrypt
486 : aesni_ocb_decrypt
))
492 * If we have an iv we can set it directly, otherwise use saved IV.
494 if (iv
== NULL
&& octx
->iv_set
)
497 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
504 /* If key set use IV, otherwise copy */
506 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
508 memcpy(octx
->iv
, iv
, octx
->ivlen
);
514 # define aesni_ocb_cipher aes_ocb_cipher
515 static int aesni_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
516 const unsigned char *in
, size_t len
);
517 # endif /* OPENSSL_NO_OCB */
519 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
520 static const EVP_CIPHER aesni_##keylen##_##mode = { \
521 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
522 flags|EVP_CIPH_##MODE##_MODE, \
524 aesni_##mode##_cipher, \
526 sizeof(EVP_AES_KEY), \
527 NULL,NULL,NULL,NULL }; \
528 static const EVP_CIPHER aes_##keylen##_##mode = { \
529 nid##_##keylen##_##nmode,blocksize, \
531 flags|EVP_CIPH_##MODE##_MODE, \
533 aes_##mode##_cipher, \
535 sizeof(EVP_AES_KEY), \
536 NULL,NULL,NULL,NULL }; \
537 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
538 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
540 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
541 static const EVP_CIPHER aesni_##keylen##_##mode = { \
542 nid##_##keylen##_##mode,blocksize, \
543 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
544 flags|EVP_CIPH_##MODE##_MODE, \
545 aesni_##mode##_init_key, \
546 aesni_##mode##_cipher, \
547 aes_##mode##_cleanup, \
548 sizeof(EVP_AES_##MODE##_CTX), \
549 NULL,NULL,aes_##mode##_ctrl,NULL }; \
550 static const EVP_CIPHER aes_##keylen##_##mode = { \
551 nid##_##keylen##_##mode,blocksize, \
552 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
553 flags|EVP_CIPH_##MODE##_MODE, \
554 aes_##mode##_init_key, \
555 aes_##mode##_cipher, \
556 aes_##mode##_cleanup, \
557 sizeof(EVP_AES_##MODE##_CTX), \
558 NULL,NULL,aes_##mode##_ctrl,NULL }; \
559 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
560 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
562 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
564 # include "sparc_arch.h"
566 extern unsigned int OPENSSL_sparcv9cap_P
[];
569 * Initial Fujitsu SPARC64 X support
571 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
572 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
573 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
574 # define HWAES_encrypt aes_fx_encrypt
575 # define HWAES_decrypt aes_fx_decrypt
576 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
577 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
579 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
581 void aes_t4_set_encrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
582 void aes_t4_set_decrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
583 void aes_t4_encrypt(const unsigned char *in
, unsigned char *out
,
585 void aes_t4_decrypt(const unsigned char *in
, unsigned char *out
,
588 * Key-length specific subroutines were chosen for following reason.
589 * Each SPARC T4 core can execute up to 8 threads which share core's
590 * resources. Loading as much key material to registers allows to
591 * minimize references to shared memory interface, as well as amount
592 * of instructions in inner loops [much needed on T4]. But then having
593 * non-key-length specific routines would require conditional branches
594 * either in inner loops or on subroutines' entries. Former is hardly
595 * acceptable, while latter means code size increase to size occupied
596 * by multiple key-length specific subroutines, so why fight?
598 void aes128_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
599 size_t len
, const AES_KEY
*key
,
600 unsigned char *ivec
);
601 void aes128_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
602 size_t len
, const AES_KEY
*key
,
603 unsigned char *ivec
);
604 void aes192_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
605 size_t len
, const AES_KEY
*key
,
606 unsigned char *ivec
);
607 void aes192_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
608 size_t len
, const AES_KEY
*key
,
609 unsigned char *ivec
);
610 void aes256_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
611 size_t len
, const AES_KEY
*key
,
612 unsigned char *ivec
);
613 void aes256_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
614 size_t len
, const AES_KEY
*key
,
615 unsigned char *ivec
);
616 void aes128_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
617 size_t blocks
, const AES_KEY
*key
,
618 unsigned char *ivec
);
619 void aes192_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
620 size_t blocks
, const AES_KEY
*key
,
621 unsigned char *ivec
);
622 void aes256_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
623 size_t blocks
, const AES_KEY
*key
,
624 unsigned char *ivec
);
625 void aes128_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
626 size_t blocks
, const AES_KEY
*key1
,
627 const AES_KEY
*key2
, const unsigned char *ivec
);
628 void aes128_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
629 size_t blocks
, const AES_KEY
*key1
,
630 const AES_KEY
*key2
, const unsigned char *ivec
);
631 void aes256_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
632 size_t blocks
, const AES_KEY
*key1
,
633 const AES_KEY
*key2
, const unsigned char *ivec
);
634 void aes256_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
635 size_t blocks
, const AES_KEY
*key1
,
636 const AES_KEY
*key2
, const unsigned char *ivec
);
638 static int aes_t4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
639 const unsigned char *iv
, int enc
)
642 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
644 mode
= EVP_CIPHER_CTX_mode(ctx
);
645 bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
646 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
649 aes_t4_set_decrypt_key(key
, bits
, &dat
->ks
.ks
);
650 dat
->block
= (block128_f
) aes_t4_decrypt
;
653 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
654 (cbc128_f
) aes128_t4_cbc_decrypt
: NULL
;
657 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
658 (cbc128_f
) aes192_t4_cbc_decrypt
: NULL
;
661 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
662 (cbc128_f
) aes256_t4_cbc_decrypt
: NULL
;
669 aes_t4_set_encrypt_key(key
, bits
, &dat
->ks
.ks
);
670 dat
->block
= (block128_f
) aes_t4_encrypt
;
673 if (mode
== EVP_CIPH_CBC_MODE
)
674 dat
->stream
.cbc
= (cbc128_f
) aes128_t4_cbc_encrypt
;
675 else if (mode
== EVP_CIPH_CTR_MODE
)
676 dat
->stream
.ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
678 dat
->stream
.cbc
= NULL
;
681 if (mode
== EVP_CIPH_CBC_MODE
)
682 dat
->stream
.cbc
= (cbc128_f
) aes192_t4_cbc_encrypt
;
683 else if (mode
== EVP_CIPH_CTR_MODE
)
684 dat
->stream
.ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
686 dat
->stream
.cbc
= NULL
;
689 if (mode
== EVP_CIPH_CBC_MODE
)
690 dat
->stream
.cbc
= (cbc128_f
) aes256_t4_cbc_encrypt
;
691 else if (mode
== EVP_CIPH_CTR_MODE
)
692 dat
->stream
.ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
694 dat
->stream
.cbc
= NULL
;
702 EVPerr(EVP_F_AES_T4_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
709 # define aes_t4_cbc_cipher aes_cbc_cipher
710 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
711 const unsigned char *in
, size_t len
);
713 # define aes_t4_ecb_cipher aes_ecb_cipher
714 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
715 const unsigned char *in
, size_t len
);
717 # define aes_t4_ofb_cipher aes_ofb_cipher
718 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
719 const unsigned char *in
, size_t len
);
721 # define aes_t4_cfb_cipher aes_cfb_cipher
722 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
723 const unsigned char *in
, size_t len
);
725 # define aes_t4_cfb8_cipher aes_cfb8_cipher
726 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
727 const unsigned char *in
, size_t len
);
729 # define aes_t4_cfb1_cipher aes_cfb1_cipher
730 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
731 const unsigned char *in
, size_t len
);
733 # define aes_t4_ctr_cipher aes_ctr_cipher
734 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
735 const unsigned char *in
, size_t len
);
737 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
738 const unsigned char *iv
, int enc
)
740 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
744 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
745 aes_t4_set_encrypt_key(key
, bits
, &gctx
->ks
.ks
);
746 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
747 (block128_f
) aes_t4_encrypt
);
750 gctx
->ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
753 gctx
->ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
756 gctx
->ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
762 * If we have an iv can set it directly, otherwise use saved IV.
764 if (iv
== NULL
&& gctx
->iv_set
)
767 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
772 /* If key set use IV, otherwise copy */
774 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
776 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
783 # define aes_t4_gcm_cipher aes_gcm_cipher
784 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
785 const unsigned char *in
, size_t len
);
787 static int aes_t4_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
788 const unsigned char *iv
, int enc
)
790 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
795 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 4;
797 /* key_len is two AES keys */
799 aes_t4_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
800 xctx
->xts
.block1
= (block128_f
) aes_t4_encrypt
;
803 xctx
->stream
= aes128_t4_xts_encrypt
;
806 xctx
->stream
= aes256_t4_xts_encrypt
;
812 aes_t4_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
814 xctx
->xts
.block1
= (block128_f
) aes_t4_decrypt
;
817 xctx
->stream
= aes128_t4_xts_decrypt
;
820 xctx
->stream
= aes256_t4_xts_decrypt
;
827 aes_t4_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
828 EVP_CIPHER_CTX_key_length(ctx
) * 4,
830 xctx
->xts
.block2
= (block128_f
) aes_t4_encrypt
;
832 xctx
->xts
.key1
= &xctx
->ks1
;
836 xctx
->xts
.key2
= &xctx
->ks2
;
837 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
843 # define aes_t4_xts_cipher aes_xts_cipher
844 static int aes_t4_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
845 const unsigned char *in
, size_t len
);
847 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
848 const unsigned char *iv
, int enc
)
850 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
854 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
855 aes_t4_set_encrypt_key(key
, bits
, &cctx
->ks
.ks
);
856 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
857 &cctx
->ks
, (block128_f
) aes_t4_encrypt
);
862 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
868 # define aes_t4_ccm_cipher aes_ccm_cipher
869 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
870 const unsigned char *in
, size_t len
);
872 # ifndef OPENSSL_NO_OCB
873 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
874 const unsigned char *iv
, int enc
)
876 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
882 * We set both the encrypt and decrypt key here because decrypt
883 * needs both. We could possibly optimise to remove setting the
884 * decrypt for an encryption operation.
886 aes_t4_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
888 aes_t4_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
890 if (!CRYPTO_ocb128_init(&octx
->ocb
,
891 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
892 (block128_f
) aes_t4_encrypt
,
893 (block128_f
) aes_t4_decrypt
,
900 * If we have an iv we can set it directly, otherwise use saved IV.
902 if (iv
== NULL
&& octx
->iv_set
)
905 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
912 /* If key set use IV, otherwise copy */
914 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
916 memcpy(octx
->iv
, iv
, octx
->ivlen
);
922 # define aes_t4_ocb_cipher aes_ocb_cipher
923 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
924 const unsigned char *in
, size_t len
);
925 # endif /* OPENSSL_NO_OCB */
927 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
928 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
929 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
930 flags|EVP_CIPH_##MODE##_MODE, \
932 aes_t4_##mode##_cipher, \
934 sizeof(EVP_AES_KEY), \
935 NULL,NULL,NULL,NULL }; \
936 static const EVP_CIPHER aes_##keylen##_##mode = { \
937 nid##_##keylen##_##nmode,blocksize, \
939 flags|EVP_CIPH_##MODE##_MODE, \
941 aes_##mode##_cipher, \
943 sizeof(EVP_AES_KEY), \
944 NULL,NULL,NULL,NULL }; \
945 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
946 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
948 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
949 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
950 nid##_##keylen##_##mode,blocksize, \
951 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
952 flags|EVP_CIPH_##MODE##_MODE, \
953 aes_t4_##mode##_init_key, \
954 aes_t4_##mode##_cipher, \
955 aes_##mode##_cleanup, \
956 sizeof(EVP_AES_##MODE##_CTX), \
957 NULL,NULL,aes_##mode##_ctrl,NULL }; \
958 static const EVP_CIPHER aes_##keylen##_##mode = { \
959 nid##_##keylen##_##mode,blocksize, \
960 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
961 flags|EVP_CIPH_##MODE##_MODE, \
962 aes_##mode##_init_key, \
963 aes_##mode##_cipher, \
964 aes_##mode##_cleanup, \
965 sizeof(EVP_AES_##MODE##_CTX), \
966 NULL,NULL,aes_##mode##_ctrl,NULL }; \
967 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
968 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
970 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
974 # include "s390x_arch.h"
980 * KM-AES parameter block - begin
981 * (see z/Architecture Principles of Operation >= SA22-7832-06)
986 /* KM-AES parameter block - end */
995 * KMO-AES parameter block - begin
996 * (see z/Architecture Principles of Operation >= SA22-7832-08)
999 unsigned char cv
[16];
1000 unsigned char k
[32];
1002 /* KMO-AES parameter block - end */
1007 } S390X_AES_OFB_CTX
;
1013 * KMF-AES parameter block - begin
1014 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1017 unsigned char cv
[16];
1018 unsigned char k
[32];
1020 /* KMF-AES parameter block - end */
1025 } S390X_AES_CFB_CTX
;
1031 * KMA-GCM-AES parameter block - begin
1032 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1035 unsigned char reserved
[12];
1041 unsigned long long g
[2];
1042 unsigned char b
[16];
1044 unsigned char h
[16];
1045 unsigned long long taadl
;
1046 unsigned long long tpcl
;
1048 unsigned long long g
[2];
1051 unsigned char k
[32];
1053 /* KMA-GCM-AES parameter block - end */
1065 unsigned char ares
[16];
1066 unsigned char mres
[16];
1067 unsigned char kres
[16];
1073 uint64_t tls_enc_records
; /* Number of TLS records encrypted */
1074 } S390X_AES_GCM_CTX
;
1080 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1081 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1082 * rounds field is used to store the function code and that the key
1083 * schedule is not stored (if aes hardware support is detected).
1086 unsigned char pad
[16];
1092 * KMAC-AES parameter block - begin
1093 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1097 unsigned long long g
[2];
1098 unsigned char b
[16];
1100 unsigned char k
[32];
1102 /* KMAC-AES paramater block - end */
1105 unsigned long long g
[2];
1106 unsigned char b
[16];
1109 unsigned long long g
[2];
1110 unsigned char b
[16];
1113 unsigned long long blocks
;
1122 unsigned char pad
[140];
1126 } S390X_AES_CCM_CTX
;
1128 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1129 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1131 /* Most modes of operation need km for partial block processing. */
1132 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1133 S390X_CAPBIT(S390X_AES_128))
1134 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1135 S390X_CAPBIT(S390X_AES_192))
1136 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1137 S390X_CAPBIT(S390X_AES_256))
1139 # define s390x_aes_init_key aes_init_key
1140 static int s390x_aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
1141 const unsigned char *iv
, int enc
);
1143 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1144 # define S390X_aes_192_cbc_CAPABLE 1
1145 # define S390X_aes_256_cbc_CAPABLE 1
1146 # define S390X_AES_CBC_CTX EVP_AES_KEY
1148 # define s390x_aes_cbc_init_key aes_init_key
1150 # define s390x_aes_cbc_cipher aes_cbc_cipher
1151 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1152 const unsigned char *in
, size_t len
);
1154 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1155 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1156 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1158 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX
*ctx
,
1159 const unsigned char *key
,
1160 const unsigned char *iv
, int enc
)
1162 S390X_AES_ECB_CTX
*cctx
= EVP_C_DATA(S390X_AES_ECB_CTX
, ctx
);
1163 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1165 cctx
->fc
= S390X_AES_FC(keylen
);
1167 cctx
->fc
|= S390X_DECRYPT
;
1169 memcpy(cctx
->km
.param
.k
, key
, keylen
);
1173 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1174 const unsigned char *in
, size_t len
)
1176 S390X_AES_ECB_CTX
*cctx
= EVP_C_DATA(S390X_AES_ECB_CTX
, ctx
);
1178 s390x_km(in
, len
, out
, cctx
->fc
, &cctx
->km
.param
);
1182 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1183 (OPENSSL_s390xcap_P.kmo[0] & \
1184 S390X_CAPBIT(S390X_AES_128)))
1185 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1186 (OPENSSL_s390xcap_P.kmo[0] & \
1187 S390X_CAPBIT(S390X_AES_192)))
1188 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1189 (OPENSSL_s390xcap_P.kmo[0] & \
1190 S390X_CAPBIT(S390X_AES_256)))
1192 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX
*ctx
,
1193 const unsigned char *key
,
1194 const unsigned char *ivec
, int enc
)
1196 S390X_AES_OFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_OFB_CTX
, ctx
);
1197 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1198 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1199 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1201 memcpy(cctx
->kmo
.param
.cv
, iv
, ivlen
);
1202 memcpy(cctx
->kmo
.param
.k
, key
, keylen
);
1203 cctx
->fc
= S390X_AES_FC(keylen
);
1208 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1209 const unsigned char *in
, size_t len
)
1211 S390X_AES_OFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_OFB_CTX
, ctx
);
1216 *out
= *in
^ cctx
->kmo
.param
.cv
[n
];
1225 len
&= ~(size_t)0xf;
1227 s390x_kmo(in
, len
, out
, cctx
->fc
, &cctx
->kmo
.param
);
1234 s390x_km(cctx
->kmo
.param
.cv
, 16, cctx
->kmo
.param
.cv
, cctx
->fc
,
1238 out
[n
] = in
[n
] ^ cctx
->kmo
.param
.cv
[n
];
1247 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1248 (OPENSSL_s390xcap_P.kmf[0] & \
1249 S390X_CAPBIT(S390X_AES_128)))
1250 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1251 (OPENSSL_s390xcap_P.kmf[0] & \
1252 S390X_CAPBIT(S390X_AES_192)))
1253 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1254 (OPENSSL_s390xcap_P.kmf[0] & \
1255 S390X_CAPBIT(S390X_AES_256)))
1257 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX
*ctx
,
1258 const unsigned char *key
,
1259 const unsigned char *ivec
, int enc
)
1261 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1262 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1263 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1264 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1266 cctx
->fc
= S390X_AES_FC(keylen
);
1267 cctx
->fc
|= 16 << 24; /* 16 bytes cipher feedback */
1269 cctx
->fc
|= S390X_DECRYPT
;
1272 memcpy(cctx
->kmf
.param
.cv
, iv
, ivlen
);
1273 memcpy(cctx
->kmf
.param
.k
, key
, keylen
);
1277 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1278 const unsigned char *in
, size_t len
)
1280 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1281 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1282 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1289 *out
= cctx
->kmf
.param
.cv
[n
] ^ tmp
;
1290 cctx
->kmf
.param
.cv
[n
] = enc
? *out
: tmp
;
1299 len
&= ~(size_t)0xf;
1301 s390x_kmf(in
, len
, out
, cctx
->fc
, &cctx
->kmf
.param
);
1308 s390x_km(cctx
->kmf
.param
.cv
, 16, cctx
->kmf
.param
.cv
,
1309 S390X_AES_FC(keylen
), cctx
->kmf
.param
.k
);
1313 out
[n
] = cctx
->kmf
.param
.cv
[n
] ^ tmp
;
1314 cctx
->kmf
.param
.cv
[n
] = enc
? out
[n
] : tmp
;
1323 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1324 S390X_CAPBIT(S390X_AES_128))
1325 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1326 S390X_CAPBIT(S390X_AES_192))
1327 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1328 S390X_CAPBIT(S390X_AES_256))
1330 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX
*ctx
,
1331 const unsigned char *key
,
1332 const unsigned char *ivec
, int enc
)
1334 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1335 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1336 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1337 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1339 cctx
->fc
= S390X_AES_FC(keylen
);
1340 cctx
->fc
|= 1 << 24; /* 1 byte cipher feedback */
1342 cctx
->fc
|= S390X_DECRYPT
;
1344 memcpy(cctx
->kmf
.param
.cv
, iv
, ivlen
);
1345 memcpy(cctx
->kmf
.param
.k
, key
, keylen
);
1349 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1350 const unsigned char *in
, size_t len
)
1352 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1354 s390x_kmf(in
, len
, out
, cctx
->fc
, &cctx
->kmf
.param
);
1358 # define S390X_aes_128_cfb1_CAPABLE 0
1359 # define S390X_aes_192_cfb1_CAPABLE 0
1360 # define S390X_aes_256_cfb1_CAPABLE 0
1362 # define s390x_aes_cfb1_init_key aes_init_key
1364 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1365 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1366 const unsigned char *in
, size_t len
);
1368 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1369 # define S390X_aes_192_ctr_CAPABLE 1
1370 # define S390X_aes_256_ctr_CAPABLE 1
1371 # define S390X_AES_CTR_CTX EVP_AES_KEY
1373 # define s390x_aes_ctr_init_key aes_init_key
1375 # define s390x_aes_ctr_cipher aes_ctr_cipher
1376 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1377 const unsigned char *in
, size_t len
);
1379 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1380 (OPENSSL_s390xcap_P.kma[0] & \
1381 S390X_CAPBIT(S390X_AES_128)))
1382 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1383 (OPENSSL_s390xcap_P.kma[0] & \
1384 S390X_CAPBIT(S390X_AES_192)))
1385 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1386 (OPENSSL_s390xcap_P.kma[0] & \
1387 S390X_CAPBIT(S390X_AES_256)))
1389 /* iv + padding length for iv lenghts != 12 */
1390 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1393 * Process additional authenticated data. Returns 0 on success. Code is
1396 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX
*ctx
, const unsigned char *aad
,
1399 unsigned long long alen
;
1402 if (ctx
->kma
.param
.tpcl
)
1405 alen
= ctx
->kma
.param
.taadl
+ len
;
1406 if (alen
> (U64(1) << 61) || (sizeof(len
) == 8 && alen
< len
))
1408 ctx
->kma
.param
.taadl
= alen
;
1413 ctx
->ares
[n
] = *aad
;
1418 /* ctx->ares contains a complete block if offset has wrapped around */
1420 s390x_kma(ctx
->ares
, 16, NULL
, 0, NULL
, ctx
->fc
, &ctx
->kma
.param
);
1421 ctx
->fc
|= S390X_KMA_HS
;
1428 len
&= ~(size_t)0xf;
1430 s390x_kma(aad
, len
, NULL
, 0, NULL
, ctx
->fc
, &ctx
->kma
.param
);
1432 ctx
->fc
|= S390X_KMA_HS
;
1440 ctx
->ares
[rem
] = aad
[rem
];
1447 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1448 * success. Code is big-endian.
1450 static int s390x_aes_gcm(S390X_AES_GCM_CTX
*ctx
, const unsigned char *in
,
1451 unsigned char *out
, size_t len
)
1453 const unsigned char *inptr
;
1454 unsigned long long mlen
;
1457 unsigned char b
[16];
1462 mlen
= ctx
->kma
.param
.tpcl
+ len
;
1463 if (mlen
> ((U64(1) << 36) - 32) || (sizeof(len
) == 8 && mlen
< len
))
1465 ctx
->kma
.param
.tpcl
= mlen
;
1471 while (n
&& inlen
) {
1472 ctx
->mres
[n
] = *inptr
;
1477 /* ctx->mres contains a complete block if offset has wrapped around */
1479 s390x_kma(ctx
->ares
, ctx
->areslen
, ctx
->mres
, 16, buf
.b
,
1480 ctx
->fc
| S390X_KMA_LAAD
, &ctx
->kma
.param
);
1481 ctx
->fc
|= S390X_KMA_HS
;
1484 /* previous call already encrypted/decrypted its remainder,
1485 * see comment below */
1500 len
&= ~(size_t)0xf;
1502 s390x_kma(ctx
->ares
, ctx
->areslen
, in
, len
, out
,
1503 ctx
->fc
| S390X_KMA_LAAD
, &ctx
->kma
.param
);
1506 ctx
->fc
|= S390X_KMA_HS
;
1511 * If there is a remainder, it has to be saved such that it can be
1512 * processed by kma later. However, we also have to do the for-now
1513 * unauthenticated encryption/decryption part here and now...
1516 if (!ctx
->mreslen
) {
1517 buf
.w
[0] = ctx
->kma
.param
.j0
.w
[0];
1518 buf
.w
[1] = ctx
->kma
.param
.j0
.w
[1];
1519 buf
.w
[2] = ctx
->kma
.param
.j0
.w
[2];
1520 buf
.w
[3] = ctx
->kma
.param
.cv
.w
+ 1;
1521 s390x_km(buf
.b
, 16, ctx
->kres
, ctx
->fc
& 0x1f, &ctx
->kma
.param
.k
);
1525 for (i
= 0; i
< rem
; i
++) {
1526 ctx
->mres
[n
+ i
] = in
[i
];
1527 out
[i
] = in
[i
] ^ ctx
->kres
[n
+ i
];
1530 ctx
->mreslen
+= rem
;
1536 * Initialize context structure. Code is big-endian.
1538 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX
*ctx
,
1539 const unsigned char *iv
)
1541 ctx
->kma
.param
.t
.g
[0] = 0;
1542 ctx
->kma
.param
.t
.g
[1] = 0;
1543 ctx
->kma
.param
.tpcl
= 0;
1544 ctx
->kma
.param
.taadl
= 0;
1549 if (ctx
->ivlen
== 12) {
1550 memcpy(&ctx
->kma
.param
.j0
, iv
, ctx
->ivlen
);
1551 ctx
->kma
.param
.j0
.w
[3] = 1;
1552 ctx
->kma
.param
.cv
.w
= 1;
1554 /* ctx->iv has the right size and is already padded. */
1555 memcpy(ctx
->iv
, iv
, ctx
->ivlen
);
1556 s390x_kma(ctx
->iv
, S390X_gcm_ivpadlen(ctx
->ivlen
), NULL
, 0, NULL
,
1557 ctx
->fc
, &ctx
->kma
.param
);
1558 ctx
->fc
|= S390X_KMA_HS
;
1560 ctx
->kma
.param
.j0
.g
[0] = ctx
->kma
.param
.t
.g
[0];
1561 ctx
->kma
.param
.j0
.g
[1] = ctx
->kma
.param
.t
.g
[1];
1562 ctx
->kma
.param
.cv
.w
= ctx
->kma
.param
.j0
.w
[3];
1563 ctx
->kma
.param
.t
.g
[0] = 0;
1564 ctx
->kma
.param
.t
.g
[1] = 0;
1569 * Performs various operations on the context structure depending on control
1570 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1571 * Code is big-endian.
1573 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
1575 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, c
);
1576 S390X_AES_GCM_CTX
*gctx_out
;
1577 EVP_CIPHER_CTX
*out
;
1578 unsigned char *buf
, *iv
;
1579 int ivlen
, enc
, len
;
1583 ivlen
= EVP_CIPHER_CTX_iv_length(c
);
1584 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1587 gctx
->ivlen
= ivlen
;
1591 gctx
->tls_aad_len
= -1;
1594 case EVP_CTRL_AEAD_SET_IVLEN
:
1599 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1600 len
= S390X_gcm_ivpadlen(arg
);
1602 /* Allocate memory for iv if needed. */
1603 if (gctx
->ivlen
== 12 || len
> S390X_gcm_ivpadlen(gctx
->ivlen
)) {
1605 OPENSSL_free(gctx
->iv
);
1607 if ((gctx
->iv
= OPENSSL_malloc(len
)) == NULL
) {
1608 EVPerr(EVP_F_S390X_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
1613 memset(gctx
->iv
+ arg
, 0, len
- arg
- 8);
1614 *((unsigned long long *)(gctx
->iv
+ len
- 8)) = arg
<< 3;
1619 case EVP_CTRL_AEAD_SET_TAG
:
1620 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
1621 enc
= EVP_CIPHER_CTX_encrypting(c
);
1622 if (arg
<= 0 || arg
> 16 || enc
)
1625 memcpy(buf
, ptr
, arg
);
1629 case EVP_CTRL_AEAD_GET_TAG
:
1630 enc
= EVP_CIPHER_CTX_encrypting(c
);
1631 if (arg
<= 0 || arg
> 16 || !enc
|| gctx
->taglen
< 0)
1634 memcpy(ptr
, gctx
->kma
.param
.t
.b
, arg
);
1637 case EVP_CTRL_GCM_SET_IV_FIXED
:
1638 /* Special case: -1 length restores whole iv */
1640 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
1645 * Fixed field must be at least 4 bytes and invocation field at least
1648 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
1652 memcpy(gctx
->iv
, ptr
, arg
);
1654 enc
= EVP_CIPHER_CTX_encrypting(c
);
1655 if (enc
&& RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
1661 case EVP_CTRL_GCM_IV_GEN
:
1662 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
1665 s390x_aes_gcm_setiv(gctx
, gctx
->iv
);
1667 if (arg
<= 0 || arg
> gctx
->ivlen
)
1670 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
1672 * Invocation field will be at least 8 bytes in size and so no need
1673 * to check wrap around or increment more than last 8 bytes.
1675 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
1679 case EVP_CTRL_GCM_SET_IV_INV
:
1680 enc
= EVP_CIPHER_CTX_encrypting(c
);
1681 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0 || enc
)
1684 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
1685 s390x_aes_gcm_setiv(gctx
, gctx
->iv
);
1689 case EVP_CTRL_AEAD_TLS1_AAD
:
1690 /* Save the aad for later use. */
1691 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
1694 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
1695 memcpy(buf
, ptr
, arg
);
1696 gctx
->tls_aad_len
= arg
;
1697 gctx
->tls_enc_records
= 0;
1699 len
= buf
[arg
- 2] << 8 | buf
[arg
- 1];
1700 /* Correct length for explicit iv. */
1701 if (len
< EVP_GCM_TLS_EXPLICIT_IV_LEN
)
1703 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1705 /* If decrypting correct for tag too. */
1706 enc
= EVP_CIPHER_CTX_encrypting(c
);
1708 if (len
< EVP_GCM_TLS_TAG_LEN
)
1710 len
-= EVP_GCM_TLS_TAG_LEN
;
1712 buf
[arg
- 2] = len
>> 8;
1713 buf
[arg
- 1] = len
& 0xff;
1714 /* Extra padding: tag appended to record. */
1715 return EVP_GCM_TLS_TAG_LEN
;
1719 gctx_out
= EVP_C_DATA(S390X_AES_GCM_CTX
, out
);
1720 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1722 if (gctx
->iv
== iv
) {
1723 gctx_out
->iv
= EVP_CIPHER_CTX_iv_noconst(out
);
1725 len
= S390X_gcm_ivpadlen(gctx
->ivlen
);
1727 if ((gctx_out
->iv
= OPENSSL_malloc(len
)) == NULL
) {
1728 EVPerr(EVP_F_S390X_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
1732 memcpy(gctx_out
->iv
, gctx
->iv
, len
);
1742 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1744 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
,
1745 const unsigned char *key
,
1746 const unsigned char *iv
, int enc
)
1748 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1751 if (iv
== NULL
&& key
== NULL
)
1755 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1756 memcpy(&gctx
->kma
.param
.k
, key
, keylen
);
1758 gctx
->fc
= S390X_AES_FC(keylen
);
1760 gctx
->fc
|= S390X_DECRYPT
;
1762 if (iv
== NULL
&& gctx
->iv_set
)
1766 s390x_aes_gcm_setiv(gctx
, iv
);
1772 s390x_aes_gcm_setiv(gctx
, iv
);
1774 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
1783 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1784 * if successful. Otherwise -1 is returned. Code is big-endian.
1786 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1787 const unsigned char *in
, size_t len
)
1789 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1790 const unsigned char *buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
1791 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1794 if (out
!= in
|| len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
1798 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1799 * Requirements from SP 800-38D". The requirements is for one party to the
1800 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1803 if (ctx
->encrypt
&& ++gctx
->tls_enc_records
== 0) {
1804 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER
, EVP_R_TOO_MANY_RECORDS
);
1808 if (EVP_CIPHER_CTX_ctrl(ctx
, enc
? EVP_CTRL_GCM_IV_GEN
1809 : EVP_CTRL_GCM_SET_IV_INV
,
1810 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
1813 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1814 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1815 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1817 gctx
->kma
.param
.taadl
= gctx
->tls_aad_len
<< 3;
1818 gctx
->kma
.param
.tpcl
= len
<< 3;
1819 s390x_kma(buf
, gctx
->tls_aad_len
, in
, len
, out
,
1820 gctx
->fc
| S390X_KMA_LAAD
| S390X_KMA_LPC
, &gctx
->kma
.param
);
1823 memcpy(out
+ len
, gctx
->kma
.param
.t
.b
, EVP_GCM_TLS_TAG_LEN
);
1824 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1826 if (CRYPTO_memcmp(gctx
->kma
.param
.t
.b
, in
+ len
,
1827 EVP_GCM_TLS_TAG_LEN
)) {
1828 OPENSSL_cleanse(out
, len
);
1835 gctx
->tls_aad_len
= -1;
1840 * Called from EVP layer to initialize context, process additional
1841 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1842 * ciphertext or process a TLS packet, depending on context. Returns bytes
1843 * written on success. Otherwise -1 is returned. Code is big-endian.
1845 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1846 const unsigned char *in
, size_t len
)
1848 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1849 unsigned char *buf
, tmp
[16];
1855 if (gctx
->tls_aad_len
>= 0)
1856 return s390x_aes_gcm_tls_cipher(ctx
, out
, in
, len
);
1863 if (s390x_aes_gcm_aad(gctx
, in
, len
))
1866 if (s390x_aes_gcm(gctx
, in
, out
, len
))
1871 gctx
->kma
.param
.taadl
<<= 3;
1872 gctx
->kma
.param
.tpcl
<<= 3;
1873 s390x_kma(gctx
->ares
, gctx
->areslen
, gctx
->mres
, gctx
->mreslen
, tmp
,
1874 gctx
->fc
| S390X_KMA_LAAD
| S390X_KMA_LPC
, &gctx
->kma
.param
);
1875 /* recall that we already did en-/decrypt gctx->mres
1876 * and returned it to caller... */
1877 OPENSSL_cleanse(tmp
, gctx
->mreslen
);
1880 enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1884 if (gctx
->taglen
< 0)
1887 buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
1888 if (CRYPTO_memcmp(buf
, gctx
->kma
.param
.t
.b
, gctx
->taglen
))
1895 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
1897 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, c
);
1898 const unsigned char *iv
;
1903 iv
= EVP_CIPHER_CTX_iv(c
);
1905 OPENSSL_free(gctx
->iv
);
1907 OPENSSL_cleanse(gctx
, sizeof(*gctx
));
1911 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1912 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1913 # define S390X_aes_256_xts_CAPABLE 1
1915 # define s390x_aes_xts_init_key aes_xts_init_key
1916 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX
*ctx
,
1917 const unsigned char *key
,
1918 const unsigned char *iv
, int enc
);
1919 # define s390x_aes_xts_cipher aes_xts_cipher
1920 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1921 const unsigned char *in
, size_t len
);
1922 # define s390x_aes_xts_ctrl aes_xts_ctrl
1923 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX
*, int type
, int arg
, void *ptr
);
1924 # define s390x_aes_xts_cleanup aes_xts_cleanup
1926 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1927 (OPENSSL_s390xcap_P.kmac[0] & \
1928 S390X_CAPBIT(S390X_AES_128)))
1929 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1930 (OPENSSL_s390xcap_P.kmac[0] & \
1931 S390X_CAPBIT(S390X_AES_192)))
1932 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1933 (OPENSSL_s390xcap_P.kmac[0] & \
1934 S390X_CAPBIT(S390X_AES_256)))
1936 # define S390X_CCM_AAD_FLAG 0x40
1939 * Set nonce and length fields. Code is big-endian.
1941 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX
*ctx
,
1942 const unsigned char *nonce
,
1945 ctx
->aes
.ccm
.nonce
.b
[0] &= ~S390X_CCM_AAD_FLAG
;
1946 ctx
->aes
.ccm
.nonce
.g
[1] = mlen
;
1947 memcpy(ctx
->aes
.ccm
.nonce
.b
+ 1, nonce
, 15 - ctx
->aes
.ccm
.l
);
1951 * Process additional authenticated data. Code is big-endian.
1953 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX
*ctx
, const unsigned char *aad
,
1962 ctx
->aes
.ccm
.nonce
.b
[0] |= S390X_CCM_AAD_FLAG
;
1964 /* Suppress 'type-punned pointer dereference' warning. */
1965 ptr
= ctx
->aes
.ccm
.buf
.b
;
1967 if (alen
< ((1 << 16) - (1 << 8))) {
1968 *(uint16_t *)ptr
= alen
;
1970 } else if (sizeof(alen
) == 8
1971 && alen
>= (size_t)1 << (32 % (sizeof(alen
) * 8))) {
1972 *(uint16_t *)ptr
= 0xffff;
1973 *(uint64_t *)(ptr
+ 2) = alen
;
1976 *(uint16_t *)ptr
= 0xfffe;
1977 *(uint32_t *)(ptr
+ 2) = alen
;
1981 while (i
< 16 && alen
) {
1982 ctx
->aes
.ccm
.buf
.b
[i
] = *aad
;
1988 ctx
->aes
.ccm
.buf
.b
[i
] = 0;
1992 ctx
->aes
.ccm
.kmac_param
.icv
.g
[0] = 0;
1993 ctx
->aes
.ccm
.kmac_param
.icv
.g
[1] = 0;
1994 s390x_kmac(ctx
->aes
.ccm
.nonce
.b
, 32, ctx
->aes
.ccm
.fc
,
1995 &ctx
->aes
.ccm
.kmac_param
);
1996 ctx
->aes
.ccm
.blocks
+= 2;
1999 alen
&= ~(size_t)0xf;
2001 s390x_kmac(aad
, alen
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2002 ctx
->aes
.ccm
.blocks
+= alen
>> 4;
2006 for (i
= 0; i
< rem
; i
++)
2007 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= aad
[i
];
2009 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2010 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2011 ctx
->aes
.ccm
.kmac_param
.k
);
2012 ctx
->aes
.ccm
.blocks
++;
2017 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2020 static int s390x_aes_ccm(S390X_AES_CCM_CTX
*ctx
, const unsigned char *in
,
2021 unsigned char *out
, size_t len
, int enc
)
2024 unsigned int i
, l
, num
;
2025 unsigned char flags
;
2027 flags
= ctx
->aes
.ccm
.nonce
.b
[0];
2028 if (!(flags
& S390X_CCM_AAD_FLAG
)) {
2029 s390x_km(ctx
->aes
.ccm
.nonce
.b
, 16, ctx
->aes
.ccm
.kmac_param
.icv
.b
,
2030 ctx
->aes
.ccm
.fc
, ctx
->aes
.ccm
.kmac_param
.k
);
2031 ctx
->aes
.ccm
.blocks
++;
2034 ctx
->aes
.ccm
.nonce
.b
[0] = l
;
2037 * Reconstruct length from encoded length field
2038 * and initialize it with counter value.
2041 for (i
= 15 - l
; i
< 15; i
++) {
2042 n
|= ctx
->aes
.ccm
.nonce
.b
[i
];
2043 ctx
->aes
.ccm
.nonce
.b
[i
] = 0;
2046 n
|= ctx
->aes
.ccm
.nonce
.b
[15];
2047 ctx
->aes
.ccm
.nonce
.b
[15] = 1;
2050 return -1; /* length mismatch */
2053 /* Two operations per block plus one for tag encryption */
2054 ctx
->aes
.ccm
.blocks
+= (((len
+ 15) >> 4) << 1) + 1;
2055 if (ctx
->aes
.ccm
.blocks
> (1ULL << 61))
2056 return -2; /* too much data */
2061 len
&= ~(size_t)0xf;
2064 /* mac-then-encrypt */
2066 s390x_kmac(in
, len
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2068 for (i
= 0; i
< rem
; i
++)
2069 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= in
[len
+ i
];
2071 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2072 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2073 ctx
->aes
.ccm
.kmac_param
.k
);
2076 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
+ rem
, &ctx
->aes
.key
.k
,
2077 ctx
->aes
.ccm
.nonce
.b
, ctx
->aes
.ccm
.buf
.b
,
2078 &num
, (ctr128_f
)AES_ctr32_encrypt
);
2080 /* decrypt-then-mac */
2081 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
+ rem
, &ctx
->aes
.key
.k
,
2082 ctx
->aes
.ccm
.nonce
.b
, ctx
->aes
.ccm
.buf
.b
,
2083 &num
, (ctr128_f
)AES_ctr32_encrypt
);
2086 s390x_kmac(out
, len
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2088 for (i
= 0; i
< rem
; i
++)
2089 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= out
[len
+ i
];
2091 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2092 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2093 ctx
->aes
.ccm
.kmac_param
.k
);
2097 for (i
= 15 - l
; i
< 16; i
++)
2098 ctx
->aes
.ccm
.nonce
.b
[i
] = 0;
2100 s390x_km(ctx
->aes
.ccm
.nonce
.b
, 16, ctx
->aes
.ccm
.buf
.b
, ctx
->aes
.ccm
.fc
,
2101 ctx
->aes
.ccm
.kmac_param
.k
);
2102 ctx
->aes
.ccm
.kmac_param
.icv
.g
[0] ^= ctx
->aes
.ccm
.buf
.g
[0];
2103 ctx
->aes
.ccm
.kmac_param
.icv
.g
[1] ^= ctx
->aes
.ccm
.buf
.g
[1];
2105 ctx
->aes
.ccm
.nonce
.b
[0] = flags
; /* restore flags field */
2110 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2111 * if successful. Otherwise -1 is returned.
2113 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2114 const unsigned char *in
, size_t len
)
2116 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2117 unsigned char *ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2118 unsigned char *buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
2119 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
2122 || len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->aes
.ccm
.m
))
2126 /* Set explicit iv (sequence number). */
2127 memcpy(out
, buf
, EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2130 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->aes
.ccm
.m
;
2132 * Get explicit iv (sequence number). We already have fixed iv
2133 * (server/client_write_iv) here.
2135 memcpy(ivec
+ EVP_CCM_TLS_FIXED_IV_LEN
, in
, EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2136 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2138 /* Process aad (sequence number|type|version|length) */
2139 s390x_aes_ccm_aad(cctx
, buf
, cctx
->aes
.ccm
.tls_aad_len
);
2141 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2142 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2145 if (s390x_aes_ccm(cctx
, in
, out
, len
, enc
))
2148 memcpy(out
+ len
, cctx
->aes
.ccm
.kmac_param
.icv
.b
, cctx
->aes
.ccm
.m
);
2149 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->aes
.ccm
.m
;
2151 if (!s390x_aes_ccm(cctx
, in
, out
, len
, enc
)) {
2152 if (!CRYPTO_memcmp(cctx
->aes
.ccm
.kmac_param
.icv
.b
, in
+ len
,
2157 OPENSSL_cleanse(out
, len
);
2163 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2166 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
,
2167 const unsigned char *key
,
2168 const unsigned char *iv
, int enc
)
2170 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2171 unsigned char *ivec
;
2174 if (iv
== NULL
&& key
== NULL
)
2178 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
2179 cctx
->aes
.ccm
.fc
= S390X_AES_FC(keylen
);
2180 memcpy(cctx
->aes
.ccm
.kmac_param
.k
, key
, keylen
);
2182 /* Store encoded m and l. */
2183 cctx
->aes
.ccm
.nonce
.b
[0] = ((cctx
->aes
.ccm
.l
- 1) & 0x7)
2184 | (((cctx
->aes
.ccm
.m
- 2) >> 1) & 0x7) << 3;
2185 memset(cctx
->aes
.ccm
.nonce
.b
+ 1, 0,
2186 sizeof(cctx
->aes
.ccm
.nonce
.b
));
2187 cctx
->aes
.ccm
.blocks
= 0;
2189 cctx
->aes
.ccm
.key_set
= 1;
2193 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2194 memcpy(ivec
, iv
, 15 - cctx
->aes
.ccm
.l
);
2196 cctx
->aes
.ccm
.iv_set
= 1;
2203 * Called from EVP layer to initialize context, process additional
2204 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2205 * plaintext or process a TLS packet, depending on context. Returns bytes
2206 * written on success. Otherwise -1 is returned.
2208 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2209 const unsigned char *in
, size_t len
)
2211 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2212 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
2214 unsigned char *buf
, *ivec
;
2216 if (!cctx
->aes
.ccm
.key_set
)
2219 if (cctx
->aes
.ccm
.tls_aad_len
>= 0)
2220 return s390x_aes_ccm_tls_cipher(ctx
, out
, in
, len
);
2223 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2224 * so integrity must be checked already at Update() i.e., before
2225 * potentially corrupted data is output.
2227 if (in
== NULL
&& out
!= NULL
)
2230 if (!cctx
->aes
.ccm
.iv_set
)
2233 if (!enc
&& !cctx
->aes
.ccm
.tag_set
)
2237 /* Update(): Pass message length. */
2239 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2240 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2242 cctx
->aes
.ccm
.len_set
= 1;
2246 /* Update(): Process aad. */
2247 if (!cctx
->aes
.ccm
.len_set
&& len
)
2250 s390x_aes_ccm_aad(cctx
, in
, len
);
2254 /* Update(): Process message. */
2256 if (!cctx
->aes
.ccm
.len_set
) {
2258 * In case message length was not previously set explicitly via
2259 * Update(), set it now.
2261 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2262 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2264 cctx
->aes
.ccm
.len_set
= 1;
2268 if (s390x_aes_ccm(cctx
, in
, out
, len
, enc
))
2271 cctx
->aes
.ccm
.tag_set
= 1;
2276 if (!s390x_aes_ccm(cctx
, in
, out
, len
, enc
)) {
2277 buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
2278 if (!CRYPTO_memcmp(cctx
->aes
.ccm
.kmac_param
.icv
.b
, buf
,
2284 OPENSSL_cleanse(out
, len
);
2286 cctx
->aes
.ccm
.iv_set
= 0;
2287 cctx
->aes
.ccm
.tag_set
= 0;
2288 cctx
->aes
.ccm
.len_set
= 0;
2294 * Performs various operations on the context structure depending on control
2295 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2296 * Code is big-endian.
2298 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2300 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, c
);
2301 unsigned char *buf
, *iv
;
2306 cctx
->aes
.ccm
.key_set
= 0;
2307 cctx
->aes
.ccm
.iv_set
= 0;
2308 cctx
->aes
.ccm
.l
= 8;
2309 cctx
->aes
.ccm
.m
= 12;
2310 cctx
->aes
.ccm
.tag_set
= 0;
2311 cctx
->aes
.ccm
.len_set
= 0;
2312 cctx
->aes
.ccm
.tls_aad_len
= -1;
2315 case EVP_CTRL_AEAD_TLS1_AAD
:
2316 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
2319 /* Save the aad for later use. */
2320 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
2321 memcpy(buf
, ptr
, arg
);
2322 cctx
->aes
.ccm
.tls_aad_len
= arg
;
2324 len
= buf
[arg
- 2] << 8 | buf
[arg
- 1];
2325 if (len
< EVP_CCM_TLS_EXPLICIT_IV_LEN
)
2328 /* Correct length for explicit iv. */
2329 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2331 enc
= EVP_CIPHER_CTX_encrypting(c
);
2333 if (len
< cctx
->aes
.ccm
.m
)
2336 /* Correct length for tag. */
2337 len
-= cctx
->aes
.ccm
.m
;
2340 buf
[arg
- 2] = len
>> 8;
2341 buf
[arg
- 1] = len
& 0xff;
2343 /* Extra padding: tag appended to record. */
2344 return cctx
->aes
.ccm
.m
;
2346 case EVP_CTRL_CCM_SET_IV_FIXED
:
2347 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
2350 /* Copy to first part of the iv. */
2351 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
2352 memcpy(iv
, ptr
, arg
);
2355 case EVP_CTRL_AEAD_SET_IVLEN
:
2359 case EVP_CTRL_CCM_SET_L
:
2360 if (arg
< 2 || arg
> 8)
2363 cctx
->aes
.ccm
.l
= arg
;
2366 case EVP_CTRL_AEAD_SET_TAG
:
2367 if ((arg
& 1) || arg
< 4 || arg
> 16)
2370 enc
= EVP_CIPHER_CTX_encrypting(c
);
2375 cctx
->aes
.ccm
.tag_set
= 1;
2376 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
2377 memcpy(buf
, ptr
, arg
);
2380 cctx
->aes
.ccm
.m
= arg
;
2383 case EVP_CTRL_AEAD_GET_TAG
:
2384 enc
= EVP_CIPHER_CTX_encrypting(c
);
2385 if (!enc
|| !cctx
->aes
.ccm
.tag_set
)
2388 if(arg
< cctx
->aes
.ccm
.m
)
2391 memcpy(ptr
, cctx
->aes
.ccm
.kmac_param
.icv
.b
, cctx
->aes
.ccm
.m
);
2392 cctx
->aes
.ccm
.tag_set
= 0;
2393 cctx
->aes
.ccm
.iv_set
= 0;
2394 cctx
->aes
.ccm
.len_set
= 0;
2405 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2407 # ifndef OPENSSL_NO_OCB
2408 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2409 # define S390X_aes_128_ocb_CAPABLE 0
2410 # define S390X_aes_192_ocb_CAPABLE 0
2411 # define S390X_aes_256_ocb_CAPABLE 0
2413 # define s390x_aes_ocb_init_key aes_ocb_init_key
2414 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2415 const unsigned char *iv
, int enc
);
2416 # define s390x_aes_ocb_cipher aes_ocb_cipher
2417 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2418 const unsigned char *in
, size_t len
);
2419 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2420 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX
*);
2421 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2422 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX
*, int type
, int arg
, void *ptr
);
2425 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2427 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2428 nid##_##keylen##_##nmode,blocksize, \
2431 flags | EVP_CIPH_##MODE##_MODE, \
2432 s390x_aes_##mode##_init_key, \
2433 s390x_aes_##mode##_cipher, \
2435 sizeof(S390X_AES_##MODE##_CTX), \
2441 static const EVP_CIPHER aes_##keylen##_##mode = { \
2442 nid##_##keylen##_##nmode, \
2446 flags | EVP_CIPH_##MODE##_MODE, \
2448 aes_##mode##_cipher, \
2450 sizeof(EVP_AES_KEY), \
2456 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2458 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2459 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2462 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2463 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2464 nid##_##keylen##_##mode, \
2466 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2468 flags | EVP_CIPH_##MODE##_MODE, \
2469 s390x_aes_##mode##_init_key, \
2470 s390x_aes_##mode##_cipher, \
2471 s390x_aes_##mode##_cleanup, \
2472 sizeof(S390X_AES_##MODE##_CTX), \
2475 s390x_aes_##mode##_ctrl, \
2478 static const EVP_CIPHER aes_##keylen##_##mode = { \
2479 nid##_##keylen##_##mode,blocksize, \
2480 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2482 flags | EVP_CIPH_##MODE##_MODE, \
2483 aes_##mode##_init_key, \
2484 aes_##mode##_cipher, \
2485 aes_##mode##_cleanup, \
2486 sizeof(EVP_AES_##MODE##_CTX), \
2489 aes_##mode##_ctrl, \
2492 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2494 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2495 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2500 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2501 static const EVP_CIPHER aes_##keylen##_##mode = { \
2502 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2503 flags|EVP_CIPH_##MODE##_MODE, \
2505 aes_##mode##_cipher, \
2507 sizeof(EVP_AES_KEY), \
2508 NULL,NULL,NULL,NULL }; \
2509 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2510 { return &aes_##keylen##_##mode; }
2512 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2513 static const EVP_CIPHER aes_##keylen##_##mode = { \
2514 nid##_##keylen##_##mode,blocksize, \
2515 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
2516 flags|EVP_CIPH_##MODE##_MODE, \
2517 aes_##mode##_init_key, \
2518 aes_##mode##_cipher, \
2519 aes_##mode##_cleanup, \
2520 sizeof(EVP_AES_##MODE##_CTX), \
2521 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2522 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2523 { return &aes_##keylen##_##mode; }
2527 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2528 # include "arm_arch.h"
2529 # if __ARM_MAX_ARCH__>=7
2530 # if defined(BSAES_ASM)
2531 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2533 # if defined(VPAES_ASM)
2534 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2536 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2537 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2538 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2539 # define HWAES_encrypt aes_v8_encrypt
2540 # define HWAES_decrypt aes_v8_decrypt
2541 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2542 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2546 #if defined(HWAES_CAPABLE)
2547 int HWAES_set_encrypt_key(const unsigned char *userKey
, const int bits
,
2549 int HWAES_set_decrypt_key(const unsigned char *userKey
, const int bits
,
2551 void HWAES_encrypt(const unsigned char *in
, unsigned char *out
,
2552 const AES_KEY
*key
);
2553 void HWAES_decrypt(const unsigned char *in
, unsigned char *out
,
2554 const AES_KEY
*key
);
2555 void HWAES_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
2556 size_t length
, const AES_KEY
*key
,
2557 unsigned char *ivec
, const int enc
);
2558 void HWAES_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
2559 size_t len
, const AES_KEY
*key
,
2560 const unsigned char ivec
[16]);
2561 void HWAES_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
2562 size_t len
, const AES_KEY
*key1
,
2563 const AES_KEY
*key2
, const unsigned char iv
[16]);
2564 void HWAES_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
2565 size_t len
, const AES_KEY
*key1
,
2566 const AES_KEY
*key2
, const unsigned char iv
[16]);
2569 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2570 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2571 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2572 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2573 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2574 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2575 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2576 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2578 static int aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2579 const unsigned char *iv
, int enc
)
2582 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2584 mode
= EVP_CIPHER_CTX_mode(ctx
);
2585 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
2587 #ifdef HWAES_CAPABLE
2588 if (HWAES_CAPABLE
) {
2589 ret
= HWAES_set_decrypt_key(key
,
2590 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2592 dat
->block
= (block128_f
) HWAES_decrypt
;
2593 dat
->stream
.cbc
= NULL
;
2594 # ifdef HWAES_cbc_encrypt
2595 if (mode
== EVP_CIPH_CBC_MODE
)
2596 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
2600 #ifdef BSAES_CAPABLE
2601 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CBC_MODE
) {
2602 ret
= AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2604 dat
->block
= (block128_f
) AES_decrypt
;
2605 dat
->stream
.cbc
= (cbc128_f
) bsaes_cbc_encrypt
;
2608 #ifdef VPAES_CAPABLE
2609 if (VPAES_CAPABLE
) {
2610 ret
= vpaes_set_decrypt_key(key
,
2611 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2613 dat
->block
= (block128_f
) vpaes_decrypt
;
2614 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2615 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
2619 ret
= AES_set_decrypt_key(key
,
2620 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2622 dat
->block
= (block128_f
) AES_decrypt
;
2623 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2624 (cbc128_f
) AES_cbc_encrypt
: NULL
;
2627 #ifdef HWAES_CAPABLE
2628 if (HWAES_CAPABLE
) {
2629 ret
= HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2631 dat
->block
= (block128_f
) HWAES_encrypt
;
2632 dat
->stream
.cbc
= NULL
;
2633 # ifdef HWAES_cbc_encrypt
2634 if (mode
== EVP_CIPH_CBC_MODE
)
2635 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
2638 # ifdef HWAES_ctr32_encrypt_blocks
2639 if (mode
== EVP_CIPH_CTR_MODE
)
2640 dat
->stream
.ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
2643 (void)0; /* terminate potentially open 'else' */
2646 #ifdef BSAES_CAPABLE
2647 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CTR_MODE
) {
2648 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2650 dat
->block
= (block128_f
) AES_encrypt
;
2651 dat
->stream
.ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
2654 #ifdef VPAES_CAPABLE
2655 if (VPAES_CAPABLE
) {
2656 ret
= vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2658 dat
->block
= (block128_f
) vpaes_encrypt
;
2659 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2660 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
2664 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2666 dat
->block
= (block128_f
) AES_encrypt
;
2667 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2668 (cbc128_f
) AES_cbc_encrypt
: NULL
;
2670 if (mode
== EVP_CIPH_CTR_MODE
)
2671 dat
->stream
.ctr
= (ctr128_f
) AES_ctr32_encrypt
;
2676 EVPerr(EVP_F_AES_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
2683 static int aes_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2684 const unsigned char *in
, size_t len
)
2686 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2688 if (dat
->stream
.cbc
)
2689 (*dat
->stream
.cbc
) (in
, out
, len
, &dat
->ks
,
2690 EVP_CIPHER_CTX_iv_noconst(ctx
),
2691 EVP_CIPHER_CTX_encrypting(ctx
));
2692 else if (EVP_CIPHER_CTX_encrypting(ctx
))
2693 CRYPTO_cbc128_encrypt(in
, out
, len
, &dat
->ks
,
2694 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
2696 CRYPTO_cbc128_decrypt(in
, out
, len
, &dat
->ks
,
2697 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
2702 static int aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2703 const unsigned char *in
, size_t len
)
2705 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
2707 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2712 for (i
= 0, len
-= bl
; i
<= len
; i
+= bl
)
2713 (*dat
->block
) (in
+ i
, out
+ i
, &dat
->ks
);
2718 static int aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2719 const unsigned char *in
, size_t len
)
2721 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2723 int num
= EVP_CIPHER_CTX_num(ctx
);
2724 CRYPTO_ofb128_encrypt(in
, out
, len
, &dat
->ks
,
2725 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, dat
->block
);
2726 EVP_CIPHER_CTX_set_num(ctx
, num
);
2730 static int aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2731 const unsigned char *in
, size_t len
)
2733 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2735 int num
= EVP_CIPHER_CTX_num(ctx
);
2736 CRYPTO_cfb128_encrypt(in
, out
, len
, &dat
->ks
,
2737 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2738 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2739 EVP_CIPHER_CTX_set_num(ctx
, num
);
2743 static int aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2744 const unsigned char *in
, size_t len
)
2746 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2748 int num
= EVP_CIPHER_CTX_num(ctx
);
2749 CRYPTO_cfb128_8_encrypt(in
, out
, len
, &dat
->ks
,
2750 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2751 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2752 EVP_CIPHER_CTX_set_num(ctx
, num
);
2756 static int aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2757 const unsigned char *in
, size_t len
)
2759 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2761 if (EVP_CIPHER_CTX_test_flags(ctx
, EVP_CIPH_FLAG_LENGTH_BITS
)) {
2762 int num
= EVP_CIPHER_CTX_num(ctx
);
2763 CRYPTO_cfb128_1_encrypt(in
, out
, len
, &dat
->ks
,
2764 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2765 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2766 EVP_CIPHER_CTX_set_num(ctx
, num
);
2770 while (len
>= MAXBITCHUNK
) {
2771 int num
= EVP_CIPHER_CTX_num(ctx
);
2772 CRYPTO_cfb128_1_encrypt(in
, out
, MAXBITCHUNK
* 8, &dat
->ks
,
2773 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2774 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2775 EVP_CIPHER_CTX_set_num(ctx
, num
);
2781 int num
= EVP_CIPHER_CTX_num(ctx
);
2782 CRYPTO_cfb128_1_encrypt(in
, out
, len
* 8, &dat
->ks
,
2783 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2784 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2785 EVP_CIPHER_CTX_set_num(ctx
, num
);
2791 static int aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2792 const unsigned char *in
, size_t len
)
2794 unsigned int num
= EVP_CIPHER_CTX_num(ctx
);
2795 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2797 if (dat
->stream
.ctr
)
2798 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
, &dat
->ks
,
2799 EVP_CIPHER_CTX_iv_noconst(ctx
),
2800 EVP_CIPHER_CTX_buf_noconst(ctx
),
2801 &num
, dat
->stream
.ctr
);
2803 CRYPTO_ctr128_encrypt(in
, out
, len
, &dat
->ks
,
2804 EVP_CIPHER_CTX_iv_noconst(ctx
),
2805 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
2807 EVP_CIPHER_CTX_set_num(ctx
, num
);
2811 BLOCK_CIPHER_generic_pack(NID_aes
, 128, 0)
2812 BLOCK_CIPHER_generic_pack(NID_aes
, 192, 0)
2813 BLOCK_CIPHER_generic_pack(NID_aes
, 256, 0)
2815 static int aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
2817 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
2820 OPENSSL_cleanse(&gctx
->gcm
, sizeof(gctx
->gcm
));
2821 if (gctx
->iv
!= EVP_CIPHER_CTX_iv_noconst(c
))
2822 OPENSSL_free(gctx
->iv
);
2826 static int aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2828 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
2833 gctx
->ivlen
= c
->cipher
->iv_len
;
2837 gctx
->tls_aad_len
= -1;
2840 case EVP_CTRL_AEAD_SET_IVLEN
:
2843 /* Allocate memory for IV if needed */
2844 if ((arg
> EVP_MAX_IV_LENGTH
) && (arg
> gctx
->ivlen
)) {
2845 if (gctx
->iv
!= c
->iv
)
2846 OPENSSL_free(gctx
->iv
);
2847 if ((gctx
->iv
= OPENSSL_malloc(arg
)) == NULL
) {
2848 EVPerr(EVP_F_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
2855 case EVP_CTRL_AEAD_SET_TAG
:
2856 if (arg
<= 0 || arg
> 16 || c
->encrypt
)
2858 memcpy(c
->buf
, ptr
, arg
);
2862 case EVP_CTRL_AEAD_GET_TAG
:
2863 if (arg
<= 0 || arg
> 16 || !c
->encrypt
2864 || gctx
->taglen
< 0)
2866 memcpy(ptr
, c
->buf
, arg
);
2869 case EVP_CTRL_GCM_SET_IV_FIXED
:
2870 /* Special case: -1 length restores whole IV */
2872 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
2877 * Fixed field must be at least 4 bytes and invocation field at least
2880 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
2883 memcpy(gctx
->iv
, ptr
, arg
);
2884 if (c
->encrypt
&& RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
2889 case EVP_CTRL_GCM_IV_GEN
:
2890 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
2892 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
2893 if (arg
<= 0 || arg
> gctx
->ivlen
)
2895 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
2897 * Invocation field will be at least 8 bytes in size and so no need
2898 * to check wrap around or increment more than last 8 bytes.
2900 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
2904 case EVP_CTRL_GCM_SET_IV_INV
:
2905 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0 || c
->encrypt
)
2907 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
2908 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
2912 case EVP_CTRL_AEAD_TLS1_AAD
:
2913 /* Save the AAD for later use */
2914 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
2916 memcpy(c
->buf
, ptr
, arg
);
2917 gctx
->tls_aad_len
= arg
;
2918 gctx
->tls_enc_records
= 0;
2920 unsigned int len
= c
->buf
[arg
- 2] << 8 | c
->buf
[arg
- 1];
2921 /* Correct length for explicit IV */
2922 if (len
< EVP_GCM_TLS_EXPLICIT_IV_LEN
)
2924 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
2925 /* If decrypting correct for tag too */
2927 if (len
< EVP_GCM_TLS_TAG_LEN
)
2929 len
-= EVP_GCM_TLS_TAG_LEN
;
2931 c
->buf
[arg
- 2] = len
>> 8;
2932 c
->buf
[arg
- 1] = len
& 0xff;
2934 /* Extra padding: tag appended to record */
2935 return EVP_GCM_TLS_TAG_LEN
;
2939 EVP_CIPHER_CTX
*out
= ptr
;
2940 EVP_AES_GCM_CTX
*gctx_out
= EVP_C_DATA(EVP_AES_GCM_CTX
,out
);
2941 if (gctx
->gcm
.key
) {
2942 if (gctx
->gcm
.key
!= &gctx
->ks
)
2944 gctx_out
->gcm
.key
= &gctx_out
->ks
;
2946 if (gctx
->iv
== c
->iv
)
2947 gctx_out
->iv
= out
->iv
;
2949 if ((gctx_out
->iv
= OPENSSL_malloc(gctx
->ivlen
)) == NULL
) {
2950 EVPerr(EVP_F_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
2953 memcpy(gctx_out
->iv
, gctx
->iv
, gctx
->ivlen
);
2964 static int aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2965 const unsigned char *iv
, int enc
)
2967 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
2972 #ifdef HWAES_CAPABLE
2973 if (HWAES_CAPABLE
) {
2974 HWAES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
2975 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
2976 (block128_f
) HWAES_encrypt
);
2977 # ifdef HWAES_ctr32_encrypt_blocks
2978 gctx
->ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
2985 #ifdef BSAES_CAPABLE
2986 if (BSAES_CAPABLE
) {
2987 AES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
2988 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
2989 (block128_f
) AES_encrypt
);
2990 gctx
->ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
2994 #ifdef VPAES_CAPABLE
2995 if (VPAES_CAPABLE
) {
2996 vpaes_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
2997 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
2998 (block128_f
) vpaes_encrypt
);
3003 (void)0; /* terminate potentially open 'else' */
3005 AES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3006 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3007 (block128_f
) AES_encrypt
);
3009 gctx
->ctr
= (ctr128_f
) AES_ctr32_encrypt
;
3016 * If we have an iv can set it directly, otherwise use saved IV.
3018 if (iv
== NULL
&& gctx
->iv_set
)
3021 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
3026 /* If key set use IV, otherwise copy */
3028 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
3030 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
3038 * Handle TLS GCM packet format. This consists of the last portion of the IV
3039 * followed by the payload and finally the tag. On encrypt generate IV,
3040 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3044 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3045 const unsigned char *in
, size_t len
)
3047 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3049 /* Encrypt/decrypt must be performed in place */
3051 || len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
3055 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3056 * Requirements from SP 800-38D". The requirements is for one party to the
3057 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3060 if (ctx
->encrypt
&& ++gctx
->tls_enc_records
== 0) {
3061 EVPerr(EVP_F_AES_GCM_TLS_CIPHER
, EVP_R_TOO_MANY_RECORDS
);
3066 * Set IV from start of buffer or generate IV and write to start of
3069 if (EVP_CIPHER_CTX_ctrl(ctx
, ctx
->encrypt
? EVP_CTRL_GCM_IV_GEN
3070 : EVP_CTRL_GCM_SET_IV_INV
,
3071 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
3074 if (CRYPTO_gcm128_aad(&gctx
->gcm
, ctx
->buf
, gctx
->tls_aad_len
))
3076 /* Fix buffer and length to point to payload */
3077 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
3078 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
3079 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
3081 /* Encrypt payload */
3084 #if defined(AES_GCM_ASM)
3085 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
3086 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3089 bulk
= AES_gcm_encrypt(in
, out
, len
,
3091 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3092 gctx
->gcm
.len
.u
[1] += bulk
;
3095 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
3098 len
- bulk
, gctx
->ctr
))
3102 #if defined(AES_GCM_ASM2)
3103 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
3104 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3107 bulk
= AES_gcm_encrypt(in
, out
, len
,
3109 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3110 gctx
->gcm
.len
.u
[1] += bulk
;
3113 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
3114 in
+ bulk
, out
+ bulk
, len
- bulk
))
3118 /* Finally write tag */
3119 CRYPTO_gcm128_tag(&gctx
->gcm
, out
, EVP_GCM_TLS_TAG_LEN
);
3120 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
3125 #if defined(AES_GCM_ASM)
3126 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
3127 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3130 bulk
= AES_gcm_decrypt(in
, out
, len
,
3132 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3133 gctx
->gcm
.len
.u
[1] += bulk
;
3136 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
3139 len
- bulk
, gctx
->ctr
))
3143 #if defined(AES_GCM_ASM2)
3144 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
3145 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3148 bulk
= AES_gcm_decrypt(in
, out
, len
,
3150 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3151 gctx
->gcm
.len
.u
[1] += bulk
;
3154 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
3155 in
+ bulk
, out
+ bulk
, len
- bulk
))
3159 CRYPTO_gcm128_tag(&gctx
->gcm
, ctx
->buf
, EVP_GCM_TLS_TAG_LEN
);
3160 /* If tag mismatch wipe buffer */
3161 if (CRYPTO_memcmp(ctx
->buf
, in
+ len
, EVP_GCM_TLS_TAG_LEN
)) {
3162 OPENSSL_cleanse(out
, len
);
3170 gctx
->tls_aad_len
= -1;
3174 static int aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3175 const unsigned char *in
, size_t len
)
3177 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3178 /* If not set up, return error */
3182 if (gctx
->tls_aad_len
>= 0)
3183 return aes_gcm_tls_cipher(ctx
, out
, in
, len
);
3189 if (CRYPTO_gcm128_aad(&gctx
->gcm
, in
, len
))
3191 } else if (ctx
->encrypt
) {
3194 #if defined(AES_GCM_ASM)
3195 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
3196 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3198 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
3201 bulk
= AES_gcm_encrypt(in
+ res
,
3202 out
+ res
, len
- res
,
3203 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
3205 gctx
->gcm
.len
.u
[1] += bulk
;
3209 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
3212 len
- bulk
, gctx
->ctr
))
3216 #if defined(AES_GCM_ASM2)
3217 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
3218 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3220 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
3223 bulk
= AES_gcm_encrypt(in
+ res
,
3224 out
+ res
, len
- res
,
3225 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
3227 gctx
->gcm
.len
.u
[1] += bulk
;
3231 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
3232 in
+ bulk
, out
+ bulk
, len
- bulk
))
3238 #if defined(AES_GCM_ASM)
3239 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
3240 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3242 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
3245 bulk
= AES_gcm_decrypt(in
+ res
,
3246 out
+ res
, len
- res
,
3248 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3249 gctx
->gcm
.len
.u
[1] += bulk
;
3253 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
3256 len
- bulk
, gctx
->ctr
))
3260 #if defined(AES_GCM_ASM2)
3261 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
3262 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3264 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
3267 bulk
= AES_gcm_decrypt(in
+ res
,
3268 out
+ res
, len
- res
,
3270 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3271 gctx
->gcm
.len
.u
[1] += bulk
;
3275 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
3276 in
+ bulk
, out
+ bulk
, len
- bulk
))
3282 if (!ctx
->encrypt
) {
3283 if (gctx
->taglen
< 0)
3285 if (CRYPTO_gcm128_finish(&gctx
->gcm
, ctx
->buf
, gctx
->taglen
) != 0)
3290 CRYPTO_gcm128_tag(&gctx
->gcm
, ctx
->buf
, 16);
3292 /* Don't reuse the IV */
3299 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3300 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3301 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3302 | EVP_CIPH_CUSTOM_COPY)
3304 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, gcm
, GCM
,
3305 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3306 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, gcm
, GCM
,
3307 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3308 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, gcm
, GCM
,
3309 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3311 static int aes_xts_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3313 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,c
);
3314 if (type
== EVP_CTRL_COPY
) {
3315 EVP_CIPHER_CTX
*out
= ptr
;
3316 EVP_AES_XTS_CTX
*xctx_out
= EVP_C_DATA(EVP_AES_XTS_CTX
,out
);
3317 if (xctx
->xts
.key1
) {
3318 if (xctx
->xts
.key1
!= &xctx
->ks1
)
3320 xctx_out
->xts
.key1
= &xctx_out
->ks1
;
3322 if (xctx
->xts
.key2
) {
3323 if (xctx
->xts
.key2
!= &xctx
->ks2
)
3325 xctx_out
->xts
.key2
= &xctx_out
->ks2
;
3328 } else if (type
!= EVP_CTRL_INIT
)
3330 /* key1 and key2 are used as an indicator both key and IV are set */
3331 xctx
->xts
.key1
= NULL
;
3332 xctx
->xts
.key2
= NULL
;
3336 static int aes_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3337 const unsigned char *iv
, int enc
)
3339 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
3346 xctx
->stream
= enc
? AES_xts_encrypt
: AES_xts_decrypt
;
3348 xctx
->stream
= NULL
;
3350 /* key_len is two AES keys */
3351 #ifdef HWAES_CAPABLE
3352 if (HWAES_CAPABLE
) {
3354 HWAES_set_encrypt_key(key
,
3355 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3357 xctx
->xts
.block1
= (block128_f
) HWAES_encrypt
;
3358 # ifdef HWAES_xts_encrypt
3359 xctx
->stream
= HWAES_xts_encrypt
;
3362 HWAES_set_decrypt_key(key
,
3363 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3365 xctx
->xts
.block1
= (block128_f
) HWAES_decrypt
;
3366 # ifdef HWAES_xts_decrypt
3367 xctx
->stream
= HWAES_xts_decrypt
;
3371 HWAES_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
3372 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3374 xctx
->xts
.block2
= (block128_f
) HWAES_encrypt
;
3376 xctx
->xts
.key1
= &xctx
->ks1
;
3380 #ifdef BSAES_CAPABLE
3382 xctx
->stream
= enc
? bsaes_xts_encrypt
: bsaes_xts_decrypt
;
3385 #ifdef VPAES_CAPABLE
3386 if (VPAES_CAPABLE
) {
3388 vpaes_set_encrypt_key(key
,
3389 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3391 xctx
->xts
.block1
= (block128_f
) vpaes_encrypt
;
3393 vpaes_set_decrypt_key(key
,
3394 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3396 xctx
->xts
.block1
= (block128_f
) vpaes_decrypt
;
3399 vpaes_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
3400 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3402 xctx
->xts
.block2
= (block128_f
) vpaes_encrypt
;
3404 xctx
->xts
.key1
= &xctx
->ks1
;
3408 (void)0; /* terminate potentially open 'else' */
3411 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
3413 xctx
->xts
.block1
= (block128_f
) AES_encrypt
;
3415 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 4,
3417 xctx
->xts
.block1
= (block128_f
) AES_decrypt
;
3420 AES_set_encrypt_key(key
+ EVP_CIPHER_CTX_key_length(ctx
) / 2,
3421 EVP_CIPHER_CTX_key_length(ctx
) * 4,
3423 xctx
->xts
.block2
= (block128_f
) AES_encrypt
;
3425 xctx
->xts
.key1
= &xctx
->ks1
;
3429 xctx
->xts
.key2
= &xctx
->ks2
;
3430 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
3436 static int aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3437 const unsigned char *in
, size_t len
)
3439 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
3441 if (xctx
->xts
.key1
== NULL
3442 || xctx
->xts
.key2
== NULL
3445 || len
< AES_BLOCK_SIZE
)
3449 * Verify that the two keys are different.
3451 * This addresses the vulnerability described in Rogaway's September 2004
3452 * paper (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf):
3453 * "Efficient Instantiations of Tweakable Blockciphers and Refinements
3454 * to Modes OCB and PMAC".
3456 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states that:
3457 * "The check for Key_1 != Key_2 shall be done at any place BEFORE
3458 * using the keys in the XTS-AES algorithm to process data with them."
3460 if (CRYPTO_memcmp(xctx
->xts
.key1
, xctx
->xts
.key2
,
3461 EVP_CIPHER_CTX_key_length(ctx
) / 2) == 0)
3465 (*xctx
->stream
) (in
, out
, len
,
3466 xctx
->xts
.key1
, xctx
->xts
.key2
,
3467 EVP_CIPHER_CTX_iv_noconst(ctx
));
3468 else if (CRYPTO_xts128_encrypt(&xctx
->xts
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3470 EVP_CIPHER_CTX_encrypting(ctx
)))
3475 #define aes_xts_cleanup NULL
3477 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3478 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3479 | EVP_CIPH_CUSTOM_COPY)
3481 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 16, xts
, XTS
, XTS_FLAGS
)
3482 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 16, xts
, XTS
, XTS_FLAGS
)
3484 static int aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3486 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,c
);
3495 cctx
->tls_aad_len
= -1;
3498 case EVP_CTRL_AEAD_TLS1_AAD
:
3499 /* Save the AAD for later use */
3500 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
3502 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
3503 cctx
->tls_aad_len
= arg
;
3506 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] << 8
3507 | EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1];
3508 /* Correct length for explicit IV */
3509 if (len
< EVP_CCM_TLS_EXPLICIT_IV_LEN
)
3511 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3512 /* If decrypting correct for tag too */
3513 if (!EVP_CIPHER_CTX_encrypting(c
)) {
3518 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] = len
>> 8;
3519 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1] = len
& 0xff;
3521 /* Extra padding: tag appended to record */
3524 case EVP_CTRL_CCM_SET_IV_FIXED
:
3525 /* Sanity check length */
3526 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
3528 /* Just copy to first part of IV */
3529 memcpy(EVP_CIPHER_CTX_iv_noconst(c
), ptr
, arg
);
3532 case EVP_CTRL_AEAD_SET_IVLEN
:
3535 case EVP_CTRL_CCM_SET_L
:
3536 if (arg
< 2 || arg
> 8)
3541 case EVP_CTRL_AEAD_SET_TAG
:
3542 if ((arg
& 1) || arg
< 4 || arg
> 16)
3544 if (EVP_CIPHER_CTX_encrypting(c
) && ptr
)
3548 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
3553 case EVP_CTRL_AEAD_GET_TAG
:
3554 if (!EVP_CIPHER_CTX_encrypting(c
) || !cctx
->tag_set
)
3556 if (!CRYPTO_ccm128_tag(&cctx
->ccm
, ptr
, (size_t)arg
))
3565 EVP_CIPHER_CTX
*out
= ptr
;
3566 EVP_AES_CCM_CTX
*cctx_out
= EVP_C_DATA(EVP_AES_CCM_CTX
,out
);
3567 if (cctx
->ccm
.key
) {
3568 if (cctx
->ccm
.key
!= &cctx
->ks
)
3570 cctx_out
->ccm
.key
= &cctx_out
->ks
;
3581 static int aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3582 const unsigned char *iv
, int enc
)
3584 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3589 #ifdef HWAES_CAPABLE
3590 if (HWAES_CAPABLE
) {
3591 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3594 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3595 &cctx
->ks
, (block128_f
) HWAES_encrypt
);
3601 #ifdef VPAES_CAPABLE
3602 if (VPAES_CAPABLE
) {
3603 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3605 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3606 &cctx
->ks
, (block128_f
) vpaes_encrypt
);
3612 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3614 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3615 &cctx
->ks
, (block128_f
) AES_encrypt
);
3620 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
3626 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3627 const unsigned char *in
, size_t len
)
3629 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3630 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
3631 /* Encrypt/decrypt must be performed in place */
3632 if (out
!= in
|| len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->M
))
3634 /* If encrypting set explicit IV from sequence number (start of AAD) */
3635 if (EVP_CIPHER_CTX_encrypting(ctx
))
3636 memcpy(out
, EVP_CIPHER_CTX_buf_noconst(ctx
),
3637 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
3638 /* Get rest of IV from explicit IV */
3639 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
) + EVP_CCM_TLS_FIXED_IV_LEN
, in
,
3640 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
3641 /* Correct length value */
3642 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
3643 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
), 15 - cctx
->L
,
3647 CRYPTO_ccm128_aad(ccm
, EVP_CIPHER_CTX_buf_noconst(ctx
), cctx
->tls_aad_len
);
3648 /* Fix buffer to point to payload */
3649 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3650 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3651 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3652 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
3654 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
3656 if (!CRYPTO_ccm128_tag(ccm
, out
+ len
, cctx
->M
))
3658 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
3660 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
3662 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
3663 unsigned char tag
[16];
3664 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
3665 if (!CRYPTO_memcmp(tag
, in
+ len
, cctx
->M
))
3669 OPENSSL_cleanse(out
, len
);
3674 static int aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3675 const unsigned char *in
, size_t len
)
3677 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3678 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
3679 /* If not set up, return error */
3683 if (cctx
->tls_aad_len
>= 0)
3684 return aes_ccm_tls_cipher(ctx
, out
, in
, len
);
3686 /* EVP_*Final() doesn't return any data */
3687 if (in
== NULL
&& out
!= NULL
)
3693 if (!EVP_CIPHER_CTX_encrypting(ctx
) && !cctx
->tag_set
)
3697 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3703 /* If have AAD need message length */
3704 if (!cctx
->len_set
&& len
)
3706 CRYPTO_ccm128_aad(ccm
, in
, len
);
3709 /* If not set length yet do it */
3710 if (!cctx
->len_set
) {
3711 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3716 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3717 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
3719 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
3725 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
3727 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
3728 unsigned char tag
[16];
3729 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
3730 if (!CRYPTO_memcmp(tag
, EVP_CIPHER_CTX_buf_noconst(ctx
),
3736 OPENSSL_cleanse(out
, len
);
3744 #define aes_ccm_cleanup NULL
3746 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, ccm
, CCM
,
3747 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3748 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, ccm
, CCM
,
3749 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3750 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, ccm
, CCM
,
3751 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3758 /* Indicates if IV has been set */
3762 static int aes_wrap_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3763 const unsigned char *iv
, int enc
)
3765 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
3769 if (EVP_CIPHER_CTX_encrypting(ctx
))
3770 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3773 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3779 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, EVP_CIPHER_CTX_iv_length(ctx
));
3780 wctx
->iv
= EVP_CIPHER_CTX_iv_noconst(ctx
);
3785 static int aes_wrap_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3786 const unsigned char *in
, size_t inlen
)
3788 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
3790 /* AES wrap with padding has IV length of 4, without padding 8 */
3791 int pad
= EVP_CIPHER_CTX_iv_length(ctx
) == 4;
3792 /* No final operation so always return zero length */
3795 /* Input length must always be non-zero */
3798 /* If decrypting need at least 16 bytes and multiple of 8 */
3799 if (!EVP_CIPHER_CTX_encrypting(ctx
) && (inlen
< 16 || inlen
& 0x7))
3801 /* If not padding input must be multiple of 8 */
3802 if (!pad
&& inlen
& 0x7)
3804 if (is_partially_overlapping(out
, in
, inlen
)) {
3805 EVPerr(EVP_F_AES_WRAP_CIPHER
, EVP_R_PARTIALLY_OVERLAPPING
);
3809 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3810 /* If padding round up to multiple of 8 */
3812 inlen
= (inlen
+ 7) / 8 * 8;
3817 * If not padding output will be exactly 8 bytes smaller than
3818 * input. If padding it will be at least 8 bytes smaller but we
3819 * don't know how much.
3825 if (EVP_CIPHER_CTX_encrypting(ctx
))
3826 rv
= CRYPTO_128_wrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
3828 (block128_f
) AES_encrypt
);
3830 rv
= CRYPTO_128_unwrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
3832 (block128_f
) AES_decrypt
);
3834 if (EVP_CIPHER_CTX_encrypting(ctx
))
3835 rv
= CRYPTO_128_wrap(&wctx
->ks
.ks
, wctx
->iv
,
3836 out
, in
, inlen
, (block128_f
) AES_encrypt
);
3838 rv
= CRYPTO_128_unwrap(&wctx
->ks
.ks
, wctx
->iv
,
3839 out
, in
, inlen
, (block128_f
) AES_decrypt
);
3841 return rv
? (int)rv
: -1;
3844 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3845 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3846 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3848 static const EVP_CIPHER aes_128_wrap
= {
3850 8, 16, 8, WRAP_FLAGS
,
3851 aes_wrap_init_key
, aes_wrap_cipher
,
3853 sizeof(EVP_AES_WRAP_CTX
),
3854 NULL
, NULL
, NULL
, NULL
3857 const EVP_CIPHER
*EVP_aes_128_wrap(void)
3859 return &aes_128_wrap
;
3862 static const EVP_CIPHER aes_192_wrap
= {
3864 8, 24, 8, WRAP_FLAGS
,
3865 aes_wrap_init_key
, aes_wrap_cipher
,
3867 sizeof(EVP_AES_WRAP_CTX
),
3868 NULL
, NULL
, NULL
, NULL
3871 const EVP_CIPHER
*EVP_aes_192_wrap(void)
3873 return &aes_192_wrap
;
3876 static const EVP_CIPHER aes_256_wrap
= {
3878 8, 32, 8, WRAP_FLAGS
,
3879 aes_wrap_init_key
, aes_wrap_cipher
,
3881 sizeof(EVP_AES_WRAP_CTX
),
3882 NULL
, NULL
, NULL
, NULL
3885 const EVP_CIPHER
*EVP_aes_256_wrap(void)
3887 return &aes_256_wrap
;
3890 static const EVP_CIPHER aes_128_wrap_pad
= {
3891 NID_id_aes128_wrap_pad
,
3892 8, 16, 4, WRAP_FLAGS
,
3893 aes_wrap_init_key
, aes_wrap_cipher
,
3895 sizeof(EVP_AES_WRAP_CTX
),
3896 NULL
, NULL
, NULL
, NULL
3899 const EVP_CIPHER
*EVP_aes_128_wrap_pad(void)
3901 return &aes_128_wrap_pad
;
3904 static const EVP_CIPHER aes_192_wrap_pad
= {
3905 NID_id_aes192_wrap_pad
,
3906 8, 24, 4, WRAP_FLAGS
,
3907 aes_wrap_init_key
, aes_wrap_cipher
,
3909 sizeof(EVP_AES_WRAP_CTX
),
3910 NULL
, NULL
, NULL
, NULL
3913 const EVP_CIPHER
*EVP_aes_192_wrap_pad(void)
3915 return &aes_192_wrap_pad
;
3918 static const EVP_CIPHER aes_256_wrap_pad
= {
3919 NID_id_aes256_wrap_pad
,
3920 8, 32, 4, WRAP_FLAGS
,
3921 aes_wrap_init_key
, aes_wrap_cipher
,
3923 sizeof(EVP_AES_WRAP_CTX
),
3924 NULL
, NULL
, NULL
, NULL
3927 const EVP_CIPHER
*EVP_aes_256_wrap_pad(void)
3929 return &aes_256_wrap_pad
;
3932 #ifndef OPENSSL_NO_OCB
3933 static int aes_ocb_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3935 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
3936 EVP_CIPHER_CTX
*newc
;
3937 EVP_AES_OCB_CTX
*new_octx
;
3943 octx
->ivlen
= EVP_CIPHER_CTX_iv_length(c
);
3944 octx
->iv
= EVP_CIPHER_CTX_iv_noconst(c
);
3946 octx
->data_buf_len
= 0;
3947 octx
->aad_buf_len
= 0;
3950 case EVP_CTRL_AEAD_SET_IVLEN
:
3951 /* IV len must be 1 to 15 */
3952 if (arg
<= 0 || arg
> 15)
3958 case EVP_CTRL_AEAD_SET_TAG
:
3960 /* Tag len must be 0 to 16 */
3961 if (arg
< 0 || arg
> 16)
3967 if (arg
!= octx
->taglen
|| EVP_CIPHER_CTX_encrypting(c
))
3969 memcpy(octx
->tag
, ptr
, arg
);
3972 case EVP_CTRL_AEAD_GET_TAG
:
3973 if (arg
!= octx
->taglen
|| !EVP_CIPHER_CTX_encrypting(c
))
3976 memcpy(ptr
, octx
->tag
, arg
);
3980 newc
= (EVP_CIPHER_CTX
*)ptr
;
3981 new_octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,newc
);
3982 return CRYPTO_ocb128_copy_ctx(&new_octx
->ocb
, &octx
->ocb
,
3983 &new_octx
->ksenc
.ks
,
3984 &new_octx
->ksdec
.ks
);
3992 # ifdef HWAES_CAPABLE
3993 # ifdef HWAES_ocb_encrypt
3994 void HWAES_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
3995 size_t blocks
, const void *key
,
3996 size_t start_block_num
,
3997 unsigned char offset_i
[16],
3998 const unsigned char L_
[][16],
3999 unsigned char checksum
[16]);
4001 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
4003 # ifdef HWAES_ocb_decrypt
4004 void HWAES_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
4005 size_t blocks
, const void *key
,
4006 size_t start_block_num
,
4007 unsigned char offset_i
[16],
4008 const unsigned char L_
[][16],
4009 unsigned char checksum
[16]);
4011 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
4015 static int aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
4016 const unsigned char *iv
, int enc
)
4018 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
4024 * We set both the encrypt and decrypt key here because decrypt
4025 * needs both. We could possibly optimise to remove setting the
4026 * decrypt for an encryption operation.
4028 # ifdef HWAES_CAPABLE
4029 if (HWAES_CAPABLE
) {
4030 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4032 HWAES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4034 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4035 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4036 (block128_f
) HWAES_encrypt
,
4037 (block128_f
) HWAES_decrypt
,
4038 enc
? HWAES_ocb_encrypt
4039 : HWAES_ocb_decrypt
))
4044 # ifdef VPAES_CAPABLE
4045 if (VPAES_CAPABLE
) {
4046 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4048 vpaes_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4050 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4051 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4052 (block128_f
) vpaes_encrypt
,
4053 (block128_f
) vpaes_decrypt
,
4059 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4061 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4063 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4064 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4065 (block128_f
) AES_encrypt
,
4066 (block128_f
) AES_decrypt
,
4073 * If we have an iv we can set it directly, otherwise use saved IV.
4075 if (iv
== NULL
&& octx
->iv_set
)
4078 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
4085 /* If key set use IV, otherwise copy */
4087 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
4089 memcpy(octx
->iv
, iv
, octx
->ivlen
);
4095 static int aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
4096 const unsigned char *in
, size_t len
)
4100 int written_len
= 0;
4101 size_t trailing_len
;
4102 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
4104 /* If IV or Key not set then return error */
4113 * Need to ensure we are only passing full blocks to low level OCB
4114 * routines. We do it here rather than in EVP_EncryptUpdate/
4115 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4116 * and those routines don't support that
4119 /* Are we dealing with AAD or normal data here? */
4121 buf
= octx
->aad_buf
;
4122 buf_len
= &(octx
->aad_buf_len
);
4124 buf
= octx
->data_buf
;
4125 buf_len
= &(octx
->data_buf_len
);
4127 if (is_partially_overlapping(out
+ *buf_len
, in
, len
)) {
4128 EVPerr(EVP_F_AES_OCB_CIPHER
, EVP_R_PARTIALLY_OVERLAPPING
);
4134 * If we've got a partially filled buffer from a previous call then
4135 * use that data first
4138 unsigned int remaining
;
4140 remaining
= AES_BLOCK_SIZE
- (*buf_len
);
4141 if (remaining
> len
) {
4142 memcpy(buf
+ (*buf_len
), in
, len
);
4146 memcpy(buf
+ (*buf_len
), in
, remaining
);
4149 * If we get here we've filled the buffer, so process it
4154 if (!CRYPTO_ocb128_aad(&octx
->ocb
, buf
, AES_BLOCK_SIZE
))
4156 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4157 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, buf
, out
,
4161 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, buf
, out
,
4165 written_len
= AES_BLOCK_SIZE
;
4168 out
+= AES_BLOCK_SIZE
;
4171 /* Do we have a partial block to handle at the end? */
4172 trailing_len
= len
% AES_BLOCK_SIZE
;
4175 * If we've got some full blocks to handle, then process these first
4177 if (len
!= trailing_len
) {
4179 if (!CRYPTO_ocb128_aad(&octx
->ocb
, in
, len
- trailing_len
))
4181 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4182 if (!CRYPTO_ocb128_encrypt
4183 (&octx
->ocb
, in
, out
, len
- trailing_len
))
4186 if (!CRYPTO_ocb128_decrypt
4187 (&octx
->ocb
, in
, out
, len
- trailing_len
))
4190 written_len
+= len
- trailing_len
;
4191 in
+= len
- trailing_len
;
4194 /* Handle any trailing partial block */
4195 if (trailing_len
> 0) {
4196 memcpy(buf
, in
, trailing_len
);
4197 *buf_len
= trailing_len
;
4203 * First of all empty the buffer of any partial block that we might
4204 * have been provided - both for data and AAD
4206 if (octx
->data_buf_len
> 0) {
4207 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4208 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, octx
->data_buf
, out
,
4209 octx
->data_buf_len
))
4212 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, octx
->data_buf
, out
,
4213 octx
->data_buf_len
))
4216 written_len
= octx
->data_buf_len
;
4217 octx
->data_buf_len
= 0;
4219 if (octx
->aad_buf_len
> 0) {
4220 if (!CRYPTO_ocb128_aad
4221 (&octx
->ocb
, octx
->aad_buf
, octx
->aad_buf_len
))
4223 octx
->aad_buf_len
= 0;
4225 /* If decrypting then verify */
4226 if (!EVP_CIPHER_CTX_encrypting(ctx
)) {
4227 if (octx
->taglen
< 0)
4229 if (CRYPTO_ocb128_finish(&octx
->ocb
,
4230 octx
->tag
, octx
->taglen
) != 0)
4235 /* If encrypting then just get the tag */
4236 if (CRYPTO_ocb128_tag(&octx
->ocb
, octx
->tag
, 16) != 1)
4238 /* Don't reuse the IV */
4244 static int aes_ocb_cleanup(EVP_CIPHER_CTX
*c
)
4246 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
4247 CRYPTO_ocb128_cleanup(&octx
->ocb
);
4251 BLOCK_CIPHER_custom(NID_aes
, 128, 16, 12, ocb
, OCB
,
4252 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4253 BLOCK_CIPHER_custom(NID_aes
, 192, 16, 12, ocb
, OCB
,
4254 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4255 BLOCK_CIPHER_custom(NID_aes
, 256, 16, 12, ocb
, OCB
,
4256 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4257 #endif /* OPENSSL_NO_OCB */