2 * Copyright 2001-2019 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 "internal/cryptlib.h"
19 #include "modes_lcl.h"
20 #include <openssl/rand.h>
21 #include <openssl/cmac.h>
40 } ks
; /* AES key schedule to use */
41 int key_set
; /* Set if key initialised */
42 int iv_set
; /* Set if an iv is set */
44 unsigned char *iv
; /* Temporary IV store */
45 int ivlen
; /* IV length */
47 int iv_gen
; /* It is OK to generate IVs */
48 int iv_gen_rand
; /* No IV was specified, so generate a rand IV */
49 int tls_aad_len
; /* TLS AAD length */
50 uint64_t tls_enc_records
; /* Number of TLS records encrypted */
58 } ks1
, ks2
; /* AES key schedules to use */
60 void (*stream
) (const unsigned char *in
,
61 unsigned char *out
, size_t length
,
62 const AES_KEY
*key1
, const AES_KEY
*key2
,
63 const unsigned char iv
[16]);
70 } ks
; /* AES key schedule to use */
71 int key_set
; /* Set if key initialised */
72 int iv_set
; /* Set if an iv is set */
73 int tag_set
; /* Set if tag is valid */
74 int len_set
; /* Set if message length set */
75 int L
, M
; /* L and M parameters from RFC3610 */
76 int tls_aad_len
; /* TLS AAD length */
81 #ifndef OPENSSL_NO_OCB
86 } ksenc
; /* AES key schedule to use for encryption */
90 } ksdec
; /* AES key schedule to use for decryption */
91 int key_set
; /* Set if key initialised */
92 int iv_set
; /* Set if an iv is set */
94 unsigned char *iv
; /* Temporary IV store */
95 unsigned char tag
[16];
96 unsigned char data_buf
[16]; /* Store partial data blocks */
97 unsigned char aad_buf
[16]; /* Store partial AAD blocks */
100 int ivlen
; /* IV length */
105 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
108 int vpaes_set_encrypt_key(const unsigned char *userKey
, int bits
,
110 int vpaes_set_decrypt_key(const unsigned char *userKey
, int bits
,
113 void vpaes_encrypt(const unsigned char *in
, unsigned char *out
,
115 void vpaes_decrypt(const unsigned char *in
, unsigned char *out
,
118 void vpaes_cbc_encrypt(const unsigned char *in
,
121 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
124 void bsaes_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
125 size_t length
, const AES_KEY
*key
,
126 unsigned char ivec
[16], int enc
);
127 void bsaes_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
128 size_t len
, const AES_KEY
*key
,
129 const unsigned char ivec
[16]);
130 void bsaes_xts_encrypt(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]);
133 void bsaes_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
134 size_t len
, const AES_KEY
*key1
,
135 const AES_KEY
*key2
, const unsigned char iv
[16]);
138 void AES_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
139 size_t blocks
, const AES_KEY
*key
,
140 const unsigned char ivec
[AES_BLOCK_SIZE
]);
143 void AES_xts_encrypt(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]);
146 void AES_xts_decrypt(const unsigned char *inp
, unsigned char *out
, size_t len
,
147 const AES_KEY
*key1
, const AES_KEY
*key2
,
148 const unsigned char iv
[16]);
151 /* increment counter (64-bit int) by 1 */
152 static void ctr64_inc(unsigned char *counter
)
167 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
168 # include "ppc_arch.h"
170 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
172 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
173 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
174 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
175 # define HWAES_encrypt aes_p8_encrypt
176 # define HWAES_decrypt aes_p8_decrypt
177 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
178 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
179 # define HWAES_xts_encrypt aes_p8_xts_encrypt
180 # define HWAES_xts_decrypt aes_p8_xts_decrypt
183 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
184 ((defined(__i386) || defined(__i386__) || \
185 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
186 defined(__x86_64) || defined(__x86_64__) || \
187 defined(_M_AMD64) || defined(_M_X64) )
189 extern unsigned int OPENSSL_ia32cap_P
[];
192 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
195 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
200 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
202 int aesni_set_encrypt_key(const unsigned char *userKey
, int bits
,
204 int aesni_set_decrypt_key(const unsigned char *userKey
, int bits
,
207 void aesni_encrypt(const unsigned char *in
, unsigned char *out
,
209 void aesni_decrypt(const unsigned char *in
, unsigned char *out
,
212 void aesni_ecb_encrypt(const unsigned char *in
,
214 size_t length
, const AES_KEY
*key
, int enc
);
215 void aesni_cbc_encrypt(const unsigned char *in
,
218 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
220 void aesni_ctr32_encrypt_blocks(const unsigned char *in
,
223 const void *key
, const unsigned char *ivec
);
225 void aesni_xts_encrypt(const unsigned char *in
,
228 const AES_KEY
*key1
, const AES_KEY
*key2
,
229 const unsigned char iv
[16]);
231 void aesni_xts_decrypt(const unsigned char *in
,
234 const AES_KEY
*key1
, const AES_KEY
*key2
,
235 const unsigned char iv
[16]);
237 void aesni_ccm64_encrypt_blocks(const unsigned char *in
,
241 const unsigned char ivec
[16],
242 unsigned char cmac
[16]);
244 void aesni_ccm64_decrypt_blocks(const unsigned char *in
,
248 const unsigned char ivec
[16],
249 unsigned char cmac
[16]);
251 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
252 size_t aesni_gcm_encrypt(const unsigned char *in
,
255 const void *key
, unsigned char ivec
[16], u64
*Xi
);
256 # define AES_gcm_encrypt aesni_gcm_encrypt
257 size_t aesni_gcm_decrypt(const unsigned char *in
,
260 const void *key
, unsigned char ivec
[16], u64
*Xi
);
261 # define AES_gcm_decrypt aesni_gcm_decrypt
262 void gcm_ghash_avx(u64 Xi
[2], const u128 Htable
[16], const u8
*in
,
264 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
265 gctx->gcm.ghash==gcm_ghash_avx)
266 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
267 gctx->gcm.ghash==gcm_ghash_avx)
268 # undef AES_GCM_ASM2 /* minor size optimization */
271 static int aesni_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
272 const unsigned char *iv
, int enc
)
275 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
277 mode
= EVP_CIPHER_CTX_mode(ctx
);
278 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
280 ret
= aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
282 dat
->block
= (block128_f
) aesni_decrypt
;
283 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
284 (cbc128_f
) aesni_cbc_encrypt
: NULL
;
286 ret
= aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
288 dat
->block
= (block128_f
) aesni_encrypt
;
289 if (mode
== EVP_CIPH_CBC_MODE
)
290 dat
->stream
.cbc
= (cbc128_f
) aesni_cbc_encrypt
;
291 else if (mode
== EVP_CIPH_CTR_MODE
)
292 dat
->stream
.ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
294 dat
->stream
.cbc
= NULL
;
298 EVPerr(EVP_F_AESNI_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
305 static int aesni_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
306 const unsigned char *in
, size_t len
)
308 aesni_cbc_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
309 EVP_CIPHER_CTX_iv_noconst(ctx
),
310 EVP_CIPHER_CTX_encrypting(ctx
));
315 static int aesni_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
316 const unsigned char *in
, size_t len
)
318 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
323 aesni_ecb_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
324 EVP_CIPHER_CTX_encrypting(ctx
));
329 # define aesni_ofb_cipher aes_ofb_cipher
330 static int aesni_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
331 const unsigned char *in
, size_t len
);
333 # define aesni_cfb_cipher aes_cfb_cipher
334 static int aesni_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
335 const unsigned char *in
, size_t len
);
337 # define aesni_cfb8_cipher aes_cfb8_cipher
338 static int aesni_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
339 const unsigned char *in
, size_t len
);
341 # define aesni_cfb1_cipher aes_cfb1_cipher
342 static int aesni_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
343 const unsigned char *in
, size_t len
);
345 # define aesni_ctr_cipher aes_ctr_cipher
346 static int aesni_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
347 const unsigned char *in
, size_t len
);
349 static int aesni_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
350 const unsigned char *iv
, int enc
)
352 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
356 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
358 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
, (block128_f
) aesni_encrypt
);
359 gctx
->ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
361 * If we have an iv can set it directly, otherwise use saved IV.
363 if (iv
== NULL
&& gctx
->iv_set
)
366 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
371 /* If key set use IV, otherwise copy */
373 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
375 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
382 # define aesni_gcm_cipher aes_gcm_cipher
383 static int aesni_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
384 const unsigned char *in
, size_t len
);
386 static int aesni_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
387 const unsigned char *iv
, int enc
)
389 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
394 /* The key is two half length keys in reality */
395 const int bytes
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
396 const int bits
= bytes
* 8;
399 * Verify that the two keys are different.
401 * This addresses Rogaway's vulnerability.
402 * See comment in aes_xts_init_key() below.
404 if (memcmp(key
, key
+ bytes
, bytes
) == 0) {
405 EVPerr(EVP_F_AESNI_XTS_INIT_KEY
, EVP_R_XTS_DUPLICATED_KEYS
);
409 /* key_len is two AES keys */
411 aesni_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
412 xctx
->xts
.block1
= (block128_f
) aesni_encrypt
;
413 xctx
->stream
= aesni_xts_encrypt
;
415 aesni_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
416 xctx
->xts
.block1
= (block128_f
) aesni_decrypt
;
417 xctx
->stream
= aesni_xts_decrypt
;
420 aesni_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
421 xctx
->xts
.block2
= (block128_f
) aesni_encrypt
;
423 xctx
->xts
.key1
= &xctx
->ks1
;
427 xctx
->xts
.key2
= &xctx
->ks2
;
428 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
434 # define aesni_xts_cipher aes_xts_cipher
435 static int aesni_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
436 const unsigned char *in
, size_t len
);
438 static int aesni_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
439 const unsigned char *iv
, int enc
)
441 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
445 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
447 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
448 &cctx
->ks
, (block128_f
) aesni_encrypt
);
449 cctx
->str
= enc
? (ccm128_f
) aesni_ccm64_encrypt_blocks
:
450 (ccm128_f
) aesni_ccm64_decrypt_blocks
;
454 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
460 # define aesni_ccm_cipher aes_ccm_cipher
461 static int aesni_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
462 const unsigned char *in
, size_t len
);
464 # ifndef OPENSSL_NO_OCB
465 void aesni_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
466 size_t blocks
, const void *key
,
467 size_t start_block_num
,
468 unsigned char offset_i
[16],
469 const unsigned char L_
[][16],
470 unsigned char checksum
[16]);
471 void aesni_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
472 size_t blocks
, const void *key
,
473 size_t start_block_num
,
474 unsigned char offset_i
[16],
475 const unsigned char L_
[][16],
476 unsigned char checksum
[16]);
478 static int aesni_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
479 const unsigned char *iv
, int enc
)
481 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
487 * We set both the encrypt and decrypt key here because decrypt
488 * needs both. We could possibly optimise to remove setting the
489 * decrypt for an encryption operation.
491 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
493 aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
495 if (!CRYPTO_ocb128_init(&octx
->ocb
,
496 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
497 (block128_f
) aesni_encrypt
,
498 (block128_f
) aesni_decrypt
,
499 enc
? aesni_ocb_encrypt
500 : aesni_ocb_decrypt
))
506 * If we have an iv we can set it directly, otherwise use saved IV.
508 if (iv
== NULL
&& octx
->iv_set
)
511 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
518 /* If key set use IV, otherwise copy */
520 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
522 memcpy(octx
->iv
, iv
, octx
->ivlen
);
528 # define aesni_ocb_cipher aes_ocb_cipher
529 static int aesni_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
530 const unsigned char *in
, size_t len
);
531 # endif /* OPENSSL_NO_OCB */
533 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
534 static const EVP_CIPHER aesni_##keylen##_##mode = { \
535 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
536 flags|EVP_CIPH_##MODE##_MODE, \
538 aesni_##mode##_cipher, \
540 sizeof(EVP_AES_KEY), \
541 NULL,NULL,NULL,NULL }; \
542 static const EVP_CIPHER aes_##keylen##_##mode = { \
543 nid##_##keylen##_##nmode,blocksize, \
545 flags|EVP_CIPH_##MODE##_MODE, \
547 aes_##mode##_cipher, \
549 sizeof(EVP_AES_KEY), \
550 NULL,NULL,NULL,NULL }; \
551 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
552 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
554 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
555 static const EVP_CIPHER aesni_##keylen##_##mode = { \
556 nid##_##keylen##_##mode,blocksize, \
557 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
559 flags|EVP_CIPH_##MODE##_MODE, \
560 aesni_##mode##_init_key, \
561 aesni_##mode##_cipher, \
562 aes_##mode##_cleanup, \
563 sizeof(EVP_AES_##MODE##_CTX), \
564 NULL,NULL,aes_##mode##_ctrl,NULL }; \
565 static const EVP_CIPHER aes_##keylen##_##mode = { \
566 nid##_##keylen##_##mode,blocksize, \
567 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
569 flags|EVP_CIPH_##MODE##_MODE, \
570 aes_##mode##_init_key, \
571 aes_##mode##_cipher, \
572 aes_##mode##_cleanup, \
573 sizeof(EVP_AES_##MODE##_CTX), \
574 NULL,NULL,aes_##mode##_ctrl,NULL }; \
575 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
576 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
578 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
580 # include "sparc_arch.h"
582 extern unsigned int OPENSSL_sparcv9cap_P
[];
585 * Initial Fujitsu SPARC64 X support
587 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
588 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
589 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
590 # define HWAES_encrypt aes_fx_encrypt
591 # define HWAES_decrypt aes_fx_decrypt
592 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
593 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
595 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
597 void aes_t4_set_encrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
598 void aes_t4_set_decrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
599 void aes_t4_encrypt(const unsigned char *in
, unsigned char *out
,
601 void aes_t4_decrypt(const unsigned char *in
, unsigned char *out
,
604 * Key-length specific subroutines were chosen for following reason.
605 * Each SPARC T4 core can execute up to 8 threads which share core's
606 * resources. Loading as much key material to registers allows to
607 * minimize references to shared memory interface, as well as amount
608 * of instructions in inner loops [much needed on T4]. But then having
609 * non-key-length specific routines would require conditional branches
610 * either in inner loops or on subroutines' entries. Former is hardly
611 * acceptable, while latter means code size increase to size occupied
612 * by multiple key-length specific subroutines, so why fight?
614 void aes128_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
615 size_t len
, const AES_KEY
*key
,
616 unsigned char *ivec
);
617 void aes128_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
618 size_t len
, const AES_KEY
*key
,
619 unsigned char *ivec
);
620 void aes192_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
621 size_t len
, const AES_KEY
*key
,
622 unsigned char *ivec
);
623 void aes192_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
624 size_t len
, const AES_KEY
*key
,
625 unsigned char *ivec
);
626 void aes256_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
627 size_t len
, const AES_KEY
*key
,
628 unsigned char *ivec
);
629 void aes256_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
630 size_t len
, const AES_KEY
*key
,
631 unsigned char *ivec
);
632 void aes128_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
633 size_t blocks
, const AES_KEY
*key
,
634 unsigned char *ivec
);
635 void aes192_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
636 size_t blocks
, const AES_KEY
*key
,
637 unsigned char *ivec
);
638 void aes256_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
639 size_t blocks
, const AES_KEY
*key
,
640 unsigned char *ivec
);
641 void aes128_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
642 size_t blocks
, const AES_KEY
*key1
,
643 const AES_KEY
*key2
, const unsigned char *ivec
);
644 void aes128_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
645 size_t blocks
, const AES_KEY
*key1
,
646 const AES_KEY
*key2
, const unsigned char *ivec
);
647 void aes256_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
648 size_t blocks
, const AES_KEY
*key1
,
649 const AES_KEY
*key2
, const unsigned char *ivec
);
650 void aes256_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
651 size_t blocks
, const AES_KEY
*key1
,
652 const AES_KEY
*key2
, const unsigned char *ivec
);
654 static int aes_t4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
655 const unsigned char *iv
, int enc
)
658 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
660 mode
= EVP_CIPHER_CTX_mode(ctx
);
661 bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
662 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
665 aes_t4_set_decrypt_key(key
, bits
, &dat
->ks
.ks
);
666 dat
->block
= (block128_f
) aes_t4_decrypt
;
669 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
670 (cbc128_f
) aes128_t4_cbc_decrypt
: NULL
;
673 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
674 (cbc128_f
) aes192_t4_cbc_decrypt
: NULL
;
677 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
678 (cbc128_f
) aes256_t4_cbc_decrypt
: NULL
;
685 aes_t4_set_encrypt_key(key
, bits
, &dat
->ks
.ks
);
686 dat
->block
= (block128_f
) aes_t4_encrypt
;
689 if (mode
== EVP_CIPH_CBC_MODE
)
690 dat
->stream
.cbc
= (cbc128_f
) aes128_t4_cbc_encrypt
;
691 else if (mode
== EVP_CIPH_CTR_MODE
)
692 dat
->stream
.ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
694 dat
->stream
.cbc
= NULL
;
697 if (mode
== EVP_CIPH_CBC_MODE
)
698 dat
->stream
.cbc
= (cbc128_f
) aes192_t4_cbc_encrypt
;
699 else if (mode
== EVP_CIPH_CTR_MODE
)
700 dat
->stream
.ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
702 dat
->stream
.cbc
= NULL
;
705 if (mode
== EVP_CIPH_CBC_MODE
)
706 dat
->stream
.cbc
= (cbc128_f
) aes256_t4_cbc_encrypt
;
707 else if (mode
== EVP_CIPH_CTR_MODE
)
708 dat
->stream
.ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
710 dat
->stream
.cbc
= NULL
;
718 EVPerr(EVP_F_AES_T4_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
725 # define aes_t4_cbc_cipher aes_cbc_cipher
726 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
727 const unsigned char *in
, size_t len
);
729 # define aes_t4_ecb_cipher aes_ecb_cipher
730 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
731 const unsigned char *in
, size_t len
);
733 # define aes_t4_ofb_cipher aes_ofb_cipher
734 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
735 const unsigned char *in
, size_t len
);
737 # define aes_t4_cfb_cipher aes_cfb_cipher
738 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
739 const unsigned char *in
, size_t len
);
741 # define aes_t4_cfb8_cipher aes_cfb8_cipher
742 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
743 const unsigned char *in
, size_t len
);
745 # define aes_t4_cfb1_cipher aes_cfb1_cipher
746 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
747 const unsigned char *in
, size_t len
);
749 # define aes_t4_ctr_cipher aes_ctr_cipher
750 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
751 const unsigned char *in
, size_t len
);
753 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
754 const unsigned char *iv
, int enc
)
756 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
760 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
761 aes_t4_set_encrypt_key(key
, bits
, &gctx
->ks
.ks
);
762 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
763 (block128_f
) aes_t4_encrypt
);
766 gctx
->ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
769 gctx
->ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
772 gctx
->ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
778 * If we have an iv can set it directly, otherwise use saved IV.
780 if (iv
== NULL
&& gctx
->iv_set
)
783 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
788 /* If key set use IV, otherwise copy */
790 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
792 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
799 # define aes_t4_gcm_cipher aes_gcm_cipher
800 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
801 const unsigned char *in
, size_t len
);
803 static int aes_t4_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
804 const unsigned char *iv
, int enc
)
806 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
811 /* The key is two half length keys in reality */
812 const int bytes
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
813 const int bits
= bytes
* 8;
816 * Verify that the two keys are different.
818 * This addresses Rogaway's vulnerability.
819 * See comment in aes_xts_init_key() below.
821 if (memcmp(key
, key
+ bytes
, bytes
) == 0) {
822 EVPerr(EVP_F_AES_T4_XTS_INIT_KEY
, EVP_R_XTS_DUPLICATED_KEYS
);
827 /* key_len is two AES keys */
829 aes_t4_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
830 xctx
->xts
.block1
= (block128_f
) aes_t4_encrypt
;
833 xctx
->stream
= aes128_t4_xts_encrypt
;
836 xctx
->stream
= aes256_t4_xts_encrypt
;
842 aes_t4_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
843 xctx
->xts
.block1
= (block128_f
) aes_t4_decrypt
;
846 xctx
->stream
= aes128_t4_xts_decrypt
;
849 xctx
->stream
= aes256_t4_xts_decrypt
;
856 aes_t4_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
857 xctx
->xts
.block2
= (block128_f
) aes_t4_encrypt
;
859 xctx
->xts
.key1
= &xctx
->ks1
;
863 xctx
->xts
.key2
= &xctx
->ks2
;
864 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
870 # define aes_t4_xts_cipher aes_xts_cipher
871 static int aes_t4_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
872 const unsigned char *in
, size_t len
);
874 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
875 const unsigned char *iv
, int enc
)
877 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
881 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
882 aes_t4_set_encrypt_key(key
, bits
, &cctx
->ks
.ks
);
883 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
884 &cctx
->ks
, (block128_f
) aes_t4_encrypt
);
889 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
895 # define aes_t4_ccm_cipher aes_ccm_cipher
896 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
897 const unsigned char *in
, size_t len
);
899 # ifndef OPENSSL_NO_OCB
900 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
901 const unsigned char *iv
, int enc
)
903 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
909 * We set both the encrypt and decrypt key here because decrypt
910 * needs both. We could possibly optimise to remove setting the
911 * decrypt for an encryption operation.
913 aes_t4_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
915 aes_t4_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
917 if (!CRYPTO_ocb128_init(&octx
->ocb
,
918 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
919 (block128_f
) aes_t4_encrypt
,
920 (block128_f
) aes_t4_decrypt
,
927 * If we have an iv we can set it directly, otherwise use saved IV.
929 if (iv
== NULL
&& octx
->iv_set
)
932 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
939 /* If key set use IV, otherwise copy */
941 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
943 memcpy(octx
->iv
, iv
, octx
->ivlen
);
949 # define aes_t4_ocb_cipher aes_ocb_cipher
950 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
951 const unsigned char *in
, size_t len
);
952 # endif /* OPENSSL_NO_OCB */
954 # ifndef OPENSSL_NO_SIV
955 # define aes_t4_siv_init_key aes_siv_init_key
956 # define aes_t4_siv_cipher aes_siv_cipher
957 # endif /* OPENSSL_NO_SIV */
959 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
960 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
961 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
962 flags|EVP_CIPH_##MODE##_MODE, \
964 aes_t4_##mode##_cipher, \
966 sizeof(EVP_AES_KEY), \
967 NULL,NULL,NULL,NULL }; \
968 static const EVP_CIPHER aes_##keylen##_##mode = { \
969 nid##_##keylen##_##nmode,blocksize, \
971 flags|EVP_CIPH_##MODE##_MODE, \
973 aes_##mode##_cipher, \
975 sizeof(EVP_AES_KEY), \
976 NULL,NULL,NULL,NULL }; \
977 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
978 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
980 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
981 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
982 nid##_##keylen##_##mode,blocksize, \
983 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
985 flags|EVP_CIPH_##MODE##_MODE, \
986 aes_t4_##mode##_init_key, \
987 aes_t4_##mode##_cipher, \
988 aes_##mode##_cleanup, \
989 sizeof(EVP_AES_##MODE##_CTX), \
990 NULL,NULL,aes_##mode##_ctrl,NULL }; \
991 static const EVP_CIPHER aes_##keylen##_##mode = { \
992 nid##_##keylen##_##mode,blocksize, \
993 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
995 flags|EVP_CIPH_##MODE##_MODE, \
996 aes_##mode##_init_key, \
997 aes_##mode##_cipher, \
998 aes_##mode##_cleanup, \
999 sizeof(EVP_AES_##MODE##_CTX), \
1000 NULL,NULL,aes_##mode##_ctrl,NULL }; \
1001 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1002 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
1004 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
1008 # include "s390x_arch.h"
1014 * KM-AES parameter block - begin
1015 * (see z/Architecture Principles of Operation >= SA22-7832-06)
1018 unsigned char k
[32];
1020 /* KM-AES parameter block - end */
1023 } S390X_AES_ECB_CTX
;
1029 * KMO-AES parameter block - begin
1030 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1033 unsigned char cv
[16];
1034 unsigned char k
[32];
1036 /* KMO-AES parameter block - end */
1041 } S390X_AES_OFB_CTX
;
1047 * KMF-AES parameter block - begin
1048 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1051 unsigned char cv
[16];
1052 unsigned char k
[32];
1054 /* KMF-AES parameter block - end */
1059 } S390X_AES_CFB_CTX
;
1065 * KMA-GCM-AES parameter block - begin
1066 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1069 unsigned char reserved
[12];
1075 unsigned long long g
[2];
1076 unsigned char b
[16];
1078 unsigned char h
[16];
1079 unsigned long long taadl
;
1080 unsigned long long tpcl
;
1082 unsigned long long g
[2];
1085 unsigned char k
[32];
1087 /* KMA-GCM-AES parameter block - end */
1099 unsigned char ares
[16];
1100 unsigned char mres
[16];
1101 unsigned char kres
[16];
1107 uint64_t tls_enc_records
; /* Number of TLS records encrypted */
1108 } S390X_AES_GCM_CTX
;
1114 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1115 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1116 * rounds field is used to store the function code and that the key
1117 * schedule is not stored (if aes hardware support is detected).
1120 unsigned char pad
[16];
1126 * KMAC-AES parameter block - begin
1127 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1131 unsigned long long g
[2];
1132 unsigned char b
[16];
1134 unsigned char k
[32];
1136 /* KMAC-AES paramater block - end */
1139 unsigned long long g
[2];
1140 unsigned char b
[16];
1143 unsigned long long g
[2];
1144 unsigned char b
[16];
1147 unsigned long long blocks
;
1156 unsigned char pad
[140];
1160 } S390X_AES_CCM_CTX
;
1162 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1163 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1165 /* Most modes of operation need km for partial block processing. */
1166 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1167 S390X_CAPBIT(S390X_AES_128))
1168 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1169 S390X_CAPBIT(S390X_AES_192))
1170 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1171 S390X_CAPBIT(S390X_AES_256))
1173 # define s390x_aes_init_key aes_init_key
1174 static int s390x_aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
1175 const unsigned char *iv
, int enc
);
1177 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1178 # define S390X_aes_192_cbc_CAPABLE 1
1179 # define S390X_aes_256_cbc_CAPABLE 1
1180 # define S390X_AES_CBC_CTX EVP_AES_KEY
1182 # define s390x_aes_cbc_init_key aes_init_key
1184 # define s390x_aes_cbc_cipher aes_cbc_cipher
1185 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1186 const unsigned char *in
, size_t len
);
1188 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1189 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1190 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1192 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX
*ctx
,
1193 const unsigned char *key
,
1194 const unsigned char *iv
, int enc
)
1196 S390X_AES_ECB_CTX
*cctx
= EVP_C_DATA(S390X_AES_ECB_CTX
, ctx
);
1197 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1199 cctx
->fc
= S390X_AES_FC(keylen
);
1201 cctx
->fc
|= S390X_DECRYPT
;
1203 memcpy(cctx
->km
.param
.k
, key
, keylen
);
1207 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1208 const unsigned char *in
, size_t len
)
1210 S390X_AES_ECB_CTX
*cctx
= EVP_C_DATA(S390X_AES_ECB_CTX
, ctx
);
1212 s390x_km(in
, len
, out
, cctx
->fc
, &cctx
->km
.param
);
1216 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1217 (OPENSSL_s390xcap_P.kmo[0] & \
1218 S390X_CAPBIT(S390X_AES_128)))
1219 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1220 (OPENSSL_s390xcap_P.kmo[0] & \
1221 S390X_CAPBIT(S390X_AES_192)))
1222 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1223 (OPENSSL_s390xcap_P.kmo[0] & \
1224 S390X_CAPBIT(S390X_AES_256)))
1226 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX
*ctx
,
1227 const unsigned char *key
,
1228 const unsigned char *ivec
, int enc
)
1230 S390X_AES_OFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_OFB_CTX
, ctx
);
1231 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1232 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1233 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1235 memcpy(cctx
->kmo
.param
.cv
, iv
, ivlen
);
1236 memcpy(cctx
->kmo
.param
.k
, key
, keylen
);
1237 cctx
->fc
= S390X_AES_FC(keylen
);
1242 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1243 const unsigned char *in
, size_t len
)
1245 S390X_AES_OFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_OFB_CTX
, ctx
);
1250 *out
= *in
^ cctx
->kmo
.param
.cv
[n
];
1259 len
&= ~(size_t)0xf;
1261 s390x_kmo(in
, len
, out
, cctx
->fc
, &cctx
->kmo
.param
);
1268 s390x_km(cctx
->kmo
.param
.cv
, 16, cctx
->kmo
.param
.cv
, cctx
->fc
,
1272 out
[n
] = in
[n
] ^ cctx
->kmo
.param
.cv
[n
];
1281 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1282 (OPENSSL_s390xcap_P.kmf[0] & \
1283 S390X_CAPBIT(S390X_AES_128)))
1284 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1285 (OPENSSL_s390xcap_P.kmf[0] & \
1286 S390X_CAPBIT(S390X_AES_192)))
1287 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1288 (OPENSSL_s390xcap_P.kmf[0] & \
1289 S390X_CAPBIT(S390X_AES_256)))
1291 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX
*ctx
,
1292 const unsigned char *key
,
1293 const unsigned char *ivec
, int enc
)
1295 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1296 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1297 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1298 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1300 cctx
->fc
= S390X_AES_FC(keylen
);
1301 cctx
->fc
|= 16 << 24; /* 16 bytes cipher feedback */
1303 cctx
->fc
|= S390X_DECRYPT
;
1306 memcpy(cctx
->kmf
.param
.cv
, iv
, ivlen
);
1307 memcpy(cctx
->kmf
.param
.k
, key
, keylen
);
1311 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1312 const unsigned char *in
, size_t len
)
1314 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1315 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1316 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1323 *out
= cctx
->kmf
.param
.cv
[n
] ^ tmp
;
1324 cctx
->kmf
.param
.cv
[n
] = enc
? *out
: tmp
;
1333 len
&= ~(size_t)0xf;
1335 s390x_kmf(in
, len
, out
, cctx
->fc
, &cctx
->kmf
.param
);
1342 s390x_km(cctx
->kmf
.param
.cv
, 16, cctx
->kmf
.param
.cv
,
1343 S390X_AES_FC(keylen
), cctx
->kmf
.param
.k
);
1347 out
[n
] = cctx
->kmf
.param
.cv
[n
] ^ tmp
;
1348 cctx
->kmf
.param
.cv
[n
] = enc
? out
[n
] : tmp
;
1357 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1358 S390X_CAPBIT(S390X_AES_128))
1359 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1360 S390X_CAPBIT(S390X_AES_192))
1361 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1362 S390X_CAPBIT(S390X_AES_256))
1364 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX
*ctx
,
1365 const unsigned char *key
,
1366 const unsigned char *ivec
, int enc
)
1368 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1369 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1370 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1371 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1373 cctx
->fc
= S390X_AES_FC(keylen
);
1374 cctx
->fc
|= 1 << 24; /* 1 byte cipher feedback */
1376 cctx
->fc
|= S390X_DECRYPT
;
1378 memcpy(cctx
->kmf
.param
.cv
, iv
, ivlen
);
1379 memcpy(cctx
->kmf
.param
.k
, key
, keylen
);
1383 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1384 const unsigned char *in
, size_t len
)
1386 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1388 s390x_kmf(in
, len
, out
, cctx
->fc
, &cctx
->kmf
.param
);
1392 # define S390X_aes_128_cfb1_CAPABLE 0
1393 # define S390X_aes_192_cfb1_CAPABLE 0
1394 # define S390X_aes_256_cfb1_CAPABLE 0
1396 # define s390x_aes_cfb1_init_key aes_init_key
1398 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1399 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1400 const unsigned char *in
, size_t len
);
1402 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1403 # define S390X_aes_192_ctr_CAPABLE 1
1404 # define S390X_aes_256_ctr_CAPABLE 1
1405 # define S390X_AES_CTR_CTX EVP_AES_KEY
1407 # define s390x_aes_ctr_init_key aes_init_key
1409 # define s390x_aes_ctr_cipher aes_ctr_cipher
1410 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1411 const unsigned char *in
, size_t len
);
1413 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1414 (OPENSSL_s390xcap_P.kma[0] & \
1415 S390X_CAPBIT(S390X_AES_128)))
1416 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1417 (OPENSSL_s390xcap_P.kma[0] & \
1418 S390X_CAPBIT(S390X_AES_192)))
1419 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1420 (OPENSSL_s390xcap_P.kma[0] & \
1421 S390X_CAPBIT(S390X_AES_256)))
1423 /* iv + padding length for iv lengths != 12 */
1424 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1427 * Process additional authenticated data. Returns 0 on success. Code is
1430 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX
*ctx
, const unsigned char *aad
,
1433 unsigned long long alen
;
1436 if (ctx
->kma
.param
.tpcl
)
1439 alen
= ctx
->kma
.param
.taadl
+ len
;
1440 if (alen
> (U64(1) << 61) || (sizeof(len
) == 8 && alen
< len
))
1442 ctx
->kma
.param
.taadl
= alen
;
1447 ctx
->ares
[n
] = *aad
;
1452 /* ctx->ares contains a complete block if offset has wrapped around */
1454 s390x_kma(ctx
->ares
, 16, NULL
, 0, NULL
, ctx
->fc
, &ctx
->kma
.param
);
1455 ctx
->fc
|= S390X_KMA_HS
;
1462 len
&= ~(size_t)0xf;
1464 s390x_kma(aad
, len
, NULL
, 0, NULL
, ctx
->fc
, &ctx
->kma
.param
);
1466 ctx
->fc
|= S390X_KMA_HS
;
1474 ctx
->ares
[rem
] = aad
[rem
];
1481 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1482 * success. Code is big-endian.
1484 static int s390x_aes_gcm(S390X_AES_GCM_CTX
*ctx
, const unsigned char *in
,
1485 unsigned char *out
, size_t len
)
1487 const unsigned char *inptr
;
1488 unsigned long long mlen
;
1491 unsigned char b
[16];
1496 mlen
= ctx
->kma
.param
.tpcl
+ len
;
1497 if (mlen
> ((U64(1) << 36) - 32) || (sizeof(len
) == 8 && mlen
< len
))
1499 ctx
->kma
.param
.tpcl
= mlen
;
1505 while (n
&& inlen
) {
1506 ctx
->mres
[n
] = *inptr
;
1511 /* ctx->mres contains a complete block if offset has wrapped around */
1513 s390x_kma(ctx
->ares
, ctx
->areslen
, ctx
->mres
, 16, buf
.b
,
1514 ctx
->fc
| S390X_KMA_LAAD
, &ctx
->kma
.param
);
1515 ctx
->fc
|= S390X_KMA_HS
;
1518 /* previous call already encrypted/decrypted its remainder,
1519 * see comment below */
1534 len
&= ~(size_t)0xf;
1536 s390x_kma(ctx
->ares
, ctx
->areslen
, in
, len
, out
,
1537 ctx
->fc
| S390X_KMA_LAAD
, &ctx
->kma
.param
);
1540 ctx
->fc
|= S390X_KMA_HS
;
1545 * If there is a remainder, it has to be saved such that it can be
1546 * processed by kma later. However, we also have to do the for-now
1547 * unauthenticated encryption/decryption part here and now...
1550 if (!ctx
->mreslen
) {
1551 buf
.w
[0] = ctx
->kma
.param
.j0
.w
[0];
1552 buf
.w
[1] = ctx
->kma
.param
.j0
.w
[1];
1553 buf
.w
[2] = ctx
->kma
.param
.j0
.w
[2];
1554 buf
.w
[3] = ctx
->kma
.param
.cv
.w
+ 1;
1555 s390x_km(buf
.b
, 16, ctx
->kres
, ctx
->fc
& 0x1f, &ctx
->kma
.param
.k
);
1559 for (i
= 0; i
< rem
; i
++) {
1560 ctx
->mres
[n
+ i
] = in
[i
];
1561 out
[i
] = in
[i
] ^ ctx
->kres
[n
+ i
];
1564 ctx
->mreslen
+= rem
;
1570 * Initialize context structure. Code is big-endian.
1572 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX
*ctx
,
1573 const unsigned char *iv
)
1575 ctx
->kma
.param
.t
.g
[0] = 0;
1576 ctx
->kma
.param
.t
.g
[1] = 0;
1577 ctx
->kma
.param
.tpcl
= 0;
1578 ctx
->kma
.param
.taadl
= 0;
1583 if (ctx
->ivlen
== 12) {
1584 memcpy(&ctx
->kma
.param
.j0
, iv
, ctx
->ivlen
);
1585 ctx
->kma
.param
.j0
.w
[3] = 1;
1586 ctx
->kma
.param
.cv
.w
= 1;
1588 /* ctx->iv has the right size and is already padded. */
1589 memcpy(ctx
->iv
, iv
, ctx
->ivlen
);
1590 s390x_kma(ctx
->iv
, S390X_gcm_ivpadlen(ctx
->ivlen
), NULL
, 0, NULL
,
1591 ctx
->fc
, &ctx
->kma
.param
);
1592 ctx
->fc
|= S390X_KMA_HS
;
1594 ctx
->kma
.param
.j0
.g
[0] = ctx
->kma
.param
.t
.g
[0];
1595 ctx
->kma
.param
.j0
.g
[1] = ctx
->kma
.param
.t
.g
[1];
1596 ctx
->kma
.param
.cv
.w
= ctx
->kma
.param
.j0
.w
[3];
1597 ctx
->kma
.param
.t
.g
[0] = 0;
1598 ctx
->kma
.param
.t
.g
[1] = 0;
1603 * Performs various operations on the context structure depending on control
1604 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1605 * Code is big-endian.
1607 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
1609 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, c
);
1610 S390X_AES_GCM_CTX
*gctx_out
;
1611 EVP_CIPHER_CTX
*out
;
1612 unsigned char *buf
, *iv
;
1613 int ivlen
, enc
, len
;
1617 ivlen
= EVP_CIPHER_CTX_iv_length(c
);
1618 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1621 gctx
->ivlen
= ivlen
;
1625 gctx
->tls_aad_len
= -1;
1628 case EVP_CTRL_AEAD_SET_IVLEN
:
1633 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1634 len
= S390X_gcm_ivpadlen(arg
);
1636 /* Allocate memory for iv if needed. */
1637 if (gctx
->ivlen
== 12 || len
> S390X_gcm_ivpadlen(gctx
->ivlen
)) {
1639 OPENSSL_free(gctx
->iv
);
1641 if ((gctx
->iv
= OPENSSL_malloc(len
)) == NULL
) {
1642 EVPerr(EVP_F_S390X_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
1647 memset(gctx
->iv
+ arg
, 0, len
- arg
- 8);
1648 *((unsigned long long *)(gctx
->iv
+ len
- 8)) = arg
<< 3;
1653 case EVP_CTRL_AEAD_SET_TAG
:
1654 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
1655 enc
= EVP_CIPHER_CTX_encrypting(c
);
1656 if (arg
<= 0 || arg
> 16 || enc
)
1659 memcpy(buf
, ptr
, arg
);
1663 case EVP_CTRL_AEAD_GET_TAG
:
1664 enc
= EVP_CIPHER_CTX_encrypting(c
);
1665 if (arg
<= 0 || arg
> 16 || !enc
|| gctx
->taglen
< 0)
1668 memcpy(ptr
, gctx
->kma
.param
.t
.b
, arg
);
1671 case EVP_CTRL_GCM_SET_IV_FIXED
:
1672 /* Special case: -1 length restores whole iv */
1674 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
1679 * Fixed field must be at least 4 bytes and invocation field at least
1682 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
1686 memcpy(gctx
->iv
, ptr
, arg
);
1688 enc
= EVP_CIPHER_CTX_encrypting(c
);
1689 if (enc
&& RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
1695 case EVP_CTRL_GCM_IV_GEN
:
1696 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
1699 s390x_aes_gcm_setiv(gctx
, gctx
->iv
);
1701 if (arg
<= 0 || arg
> gctx
->ivlen
)
1704 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
1706 * Invocation field will be at least 8 bytes in size and so no need
1707 * to check wrap around or increment more than last 8 bytes.
1709 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
1713 case EVP_CTRL_GCM_SET_IV_INV
:
1714 enc
= EVP_CIPHER_CTX_encrypting(c
);
1715 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0 || enc
)
1718 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
1719 s390x_aes_gcm_setiv(gctx
, gctx
->iv
);
1723 case EVP_CTRL_AEAD_TLS1_AAD
:
1724 /* Save the aad for later use. */
1725 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
1728 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
1729 memcpy(buf
, ptr
, arg
);
1730 gctx
->tls_aad_len
= arg
;
1731 gctx
->tls_enc_records
= 0;
1733 len
= buf
[arg
- 2] << 8 | buf
[arg
- 1];
1734 /* Correct length for explicit iv. */
1735 if (len
< EVP_GCM_TLS_EXPLICIT_IV_LEN
)
1737 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1739 /* If decrypting correct for tag too. */
1740 enc
= EVP_CIPHER_CTX_encrypting(c
);
1742 if (len
< EVP_GCM_TLS_TAG_LEN
)
1744 len
-= EVP_GCM_TLS_TAG_LEN
;
1746 buf
[arg
- 2] = len
>> 8;
1747 buf
[arg
- 1] = len
& 0xff;
1748 /* Extra padding: tag appended to record. */
1749 return EVP_GCM_TLS_TAG_LEN
;
1753 gctx_out
= EVP_C_DATA(S390X_AES_GCM_CTX
, out
);
1754 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1756 if (gctx
->iv
== iv
) {
1757 gctx_out
->iv
= EVP_CIPHER_CTX_iv_noconst(out
);
1759 len
= S390X_gcm_ivpadlen(gctx
->ivlen
);
1761 if ((gctx_out
->iv
= OPENSSL_malloc(len
)) == NULL
) {
1762 EVPerr(EVP_F_S390X_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
1766 memcpy(gctx_out
->iv
, gctx
->iv
, len
);
1776 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1778 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
,
1779 const unsigned char *key
,
1780 const unsigned char *iv
, int enc
)
1782 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1785 if (iv
== NULL
&& key
== NULL
)
1789 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1790 memcpy(&gctx
->kma
.param
.k
, key
, keylen
);
1792 gctx
->fc
= S390X_AES_FC(keylen
);
1794 gctx
->fc
|= S390X_DECRYPT
;
1796 if (iv
== NULL
&& gctx
->iv_set
)
1800 s390x_aes_gcm_setiv(gctx
, iv
);
1806 s390x_aes_gcm_setiv(gctx
, iv
);
1808 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
1817 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1818 * if successful. Otherwise -1 is returned. Code is big-endian.
1820 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1821 const unsigned char *in
, size_t len
)
1823 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1824 const unsigned char *buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
1825 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1828 if (out
!= in
|| len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
1832 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1833 * Requirements from SP 800-38D". The requirements is for one party to the
1834 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1837 if (ctx
->encrypt
&& ++gctx
->tls_enc_records
== 0) {
1838 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER
, EVP_R_TOO_MANY_RECORDS
);
1842 if (EVP_CIPHER_CTX_ctrl(ctx
, enc
? EVP_CTRL_GCM_IV_GEN
1843 : EVP_CTRL_GCM_SET_IV_INV
,
1844 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
1847 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1848 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1849 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1851 gctx
->kma
.param
.taadl
= gctx
->tls_aad_len
<< 3;
1852 gctx
->kma
.param
.tpcl
= len
<< 3;
1853 s390x_kma(buf
, gctx
->tls_aad_len
, in
, len
, out
,
1854 gctx
->fc
| S390X_KMA_LAAD
| S390X_KMA_LPC
, &gctx
->kma
.param
);
1857 memcpy(out
+ len
, gctx
->kma
.param
.t
.b
, EVP_GCM_TLS_TAG_LEN
);
1858 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1860 if (CRYPTO_memcmp(gctx
->kma
.param
.t
.b
, in
+ len
,
1861 EVP_GCM_TLS_TAG_LEN
)) {
1862 OPENSSL_cleanse(out
, len
);
1869 gctx
->tls_aad_len
= -1;
1874 * Called from EVP layer to initialize context, process additional
1875 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1876 * ciphertext or process a TLS packet, depending on context. Returns bytes
1877 * written on success. Otherwise -1 is returned. Code is big-endian.
1879 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1880 const unsigned char *in
, size_t len
)
1882 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1883 unsigned char *buf
, tmp
[16];
1889 if (gctx
->tls_aad_len
>= 0)
1890 return s390x_aes_gcm_tls_cipher(ctx
, out
, in
, len
);
1897 if (s390x_aes_gcm_aad(gctx
, in
, len
))
1900 if (s390x_aes_gcm(gctx
, in
, out
, len
))
1905 gctx
->kma
.param
.taadl
<<= 3;
1906 gctx
->kma
.param
.tpcl
<<= 3;
1907 s390x_kma(gctx
->ares
, gctx
->areslen
, gctx
->mres
, gctx
->mreslen
, tmp
,
1908 gctx
->fc
| S390X_KMA_LAAD
| S390X_KMA_LPC
, &gctx
->kma
.param
);
1909 /* recall that we already did en-/decrypt gctx->mres
1910 * and returned it to caller... */
1911 OPENSSL_cleanse(tmp
, gctx
->mreslen
);
1914 enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1918 if (gctx
->taglen
< 0)
1921 buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
1922 if (CRYPTO_memcmp(buf
, gctx
->kma
.param
.t
.b
, gctx
->taglen
))
1929 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
1931 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, c
);
1932 const unsigned char *iv
;
1937 iv
= EVP_CIPHER_CTX_iv(c
);
1939 OPENSSL_free(gctx
->iv
);
1941 OPENSSL_cleanse(gctx
, sizeof(*gctx
));
1945 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1946 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1947 # define S390X_aes_256_xts_CAPABLE 1
1949 # define s390x_aes_xts_init_key aes_xts_init_key
1950 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX
*ctx
,
1951 const unsigned char *key
,
1952 const unsigned char *iv
, int enc
);
1953 # define s390x_aes_xts_cipher aes_xts_cipher
1954 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1955 const unsigned char *in
, size_t len
);
1956 # define s390x_aes_xts_ctrl aes_xts_ctrl
1957 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX
*, int type
, int arg
, void *ptr
);
1958 # define s390x_aes_xts_cleanup aes_xts_cleanup
1960 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1961 (OPENSSL_s390xcap_P.kmac[0] & \
1962 S390X_CAPBIT(S390X_AES_128)))
1963 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1964 (OPENSSL_s390xcap_P.kmac[0] & \
1965 S390X_CAPBIT(S390X_AES_192)))
1966 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1967 (OPENSSL_s390xcap_P.kmac[0] & \
1968 S390X_CAPBIT(S390X_AES_256)))
1970 # define S390X_CCM_AAD_FLAG 0x40
1973 * Set nonce and length fields. Code is big-endian.
1975 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX
*ctx
,
1976 const unsigned char *nonce
,
1979 ctx
->aes
.ccm
.nonce
.b
[0] &= ~S390X_CCM_AAD_FLAG
;
1980 ctx
->aes
.ccm
.nonce
.g
[1] = mlen
;
1981 memcpy(ctx
->aes
.ccm
.nonce
.b
+ 1, nonce
, 15 - ctx
->aes
.ccm
.l
);
1985 * Process additional authenticated data. Code is big-endian.
1987 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX
*ctx
, const unsigned char *aad
,
1996 ctx
->aes
.ccm
.nonce
.b
[0] |= S390X_CCM_AAD_FLAG
;
1998 /* Suppress 'type-punned pointer dereference' warning. */
1999 ptr
= ctx
->aes
.ccm
.buf
.b
;
2001 if (alen
< ((1 << 16) - (1 << 8))) {
2002 *(uint16_t *)ptr
= alen
;
2004 } else if (sizeof(alen
) == 8
2005 && alen
>= (size_t)1 << (32 % (sizeof(alen
) * 8))) {
2006 *(uint16_t *)ptr
= 0xffff;
2007 *(uint64_t *)(ptr
+ 2) = alen
;
2010 *(uint16_t *)ptr
= 0xfffe;
2011 *(uint32_t *)(ptr
+ 2) = alen
;
2015 while (i
< 16 && alen
) {
2016 ctx
->aes
.ccm
.buf
.b
[i
] = *aad
;
2022 ctx
->aes
.ccm
.buf
.b
[i
] = 0;
2026 ctx
->aes
.ccm
.kmac_param
.icv
.g
[0] = 0;
2027 ctx
->aes
.ccm
.kmac_param
.icv
.g
[1] = 0;
2028 s390x_kmac(ctx
->aes
.ccm
.nonce
.b
, 32, ctx
->aes
.ccm
.fc
,
2029 &ctx
->aes
.ccm
.kmac_param
);
2030 ctx
->aes
.ccm
.blocks
+= 2;
2033 alen
&= ~(size_t)0xf;
2035 s390x_kmac(aad
, alen
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2036 ctx
->aes
.ccm
.blocks
+= alen
>> 4;
2040 for (i
= 0; i
< rem
; i
++)
2041 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= aad
[i
];
2043 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2044 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2045 ctx
->aes
.ccm
.kmac_param
.k
);
2046 ctx
->aes
.ccm
.blocks
++;
2051 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2054 static int s390x_aes_ccm(S390X_AES_CCM_CTX
*ctx
, const unsigned char *in
,
2055 unsigned char *out
, size_t len
, int enc
)
2058 unsigned int i
, l
, num
;
2059 unsigned char flags
;
2061 flags
= ctx
->aes
.ccm
.nonce
.b
[0];
2062 if (!(flags
& S390X_CCM_AAD_FLAG
)) {
2063 s390x_km(ctx
->aes
.ccm
.nonce
.b
, 16, ctx
->aes
.ccm
.kmac_param
.icv
.b
,
2064 ctx
->aes
.ccm
.fc
, ctx
->aes
.ccm
.kmac_param
.k
);
2065 ctx
->aes
.ccm
.blocks
++;
2068 ctx
->aes
.ccm
.nonce
.b
[0] = l
;
2071 * Reconstruct length from encoded length field
2072 * and initialize it with counter value.
2075 for (i
= 15 - l
; i
< 15; i
++) {
2076 n
|= ctx
->aes
.ccm
.nonce
.b
[i
];
2077 ctx
->aes
.ccm
.nonce
.b
[i
] = 0;
2080 n
|= ctx
->aes
.ccm
.nonce
.b
[15];
2081 ctx
->aes
.ccm
.nonce
.b
[15] = 1;
2084 return -1; /* length mismatch */
2087 /* Two operations per block plus one for tag encryption */
2088 ctx
->aes
.ccm
.blocks
+= (((len
+ 15) >> 4) << 1) + 1;
2089 if (ctx
->aes
.ccm
.blocks
> (1ULL << 61))
2090 return -2; /* too much data */
2095 len
&= ~(size_t)0xf;
2098 /* mac-then-encrypt */
2100 s390x_kmac(in
, len
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2102 for (i
= 0; i
< rem
; i
++)
2103 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= in
[len
+ i
];
2105 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2106 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2107 ctx
->aes
.ccm
.kmac_param
.k
);
2110 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
+ rem
, &ctx
->aes
.key
.k
,
2111 ctx
->aes
.ccm
.nonce
.b
, ctx
->aes
.ccm
.buf
.b
,
2112 &num
, (ctr128_f
)AES_ctr32_encrypt
);
2114 /* decrypt-then-mac */
2115 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
+ rem
, &ctx
->aes
.key
.k
,
2116 ctx
->aes
.ccm
.nonce
.b
, ctx
->aes
.ccm
.buf
.b
,
2117 &num
, (ctr128_f
)AES_ctr32_encrypt
);
2120 s390x_kmac(out
, len
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2122 for (i
= 0; i
< rem
; i
++)
2123 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= out
[len
+ i
];
2125 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2126 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2127 ctx
->aes
.ccm
.kmac_param
.k
);
2131 for (i
= 15 - l
; i
< 16; i
++)
2132 ctx
->aes
.ccm
.nonce
.b
[i
] = 0;
2134 s390x_km(ctx
->aes
.ccm
.nonce
.b
, 16, ctx
->aes
.ccm
.buf
.b
, ctx
->aes
.ccm
.fc
,
2135 ctx
->aes
.ccm
.kmac_param
.k
);
2136 ctx
->aes
.ccm
.kmac_param
.icv
.g
[0] ^= ctx
->aes
.ccm
.buf
.g
[0];
2137 ctx
->aes
.ccm
.kmac_param
.icv
.g
[1] ^= ctx
->aes
.ccm
.buf
.g
[1];
2139 ctx
->aes
.ccm
.nonce
.b
[0] = flags
; /* restore flags field */
2144 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2145 * if successful. Otherwise -1 is returned.
2147 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2148 const unsigned char *in
, size_t len
)
2150 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2151 unsigned char *ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2152 unsigned char *buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
2153 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
2156 || len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->aes
.ccm
.m
))
2160 /* Set explicit iv (sequence number). */
2161 memcpy(out
, buf
, EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2164 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->aes
.ccm
.m
;
2166 * Get explicit iv (sequence number). We already have fixed iv
2167 * (server/client_write_iv) here.
2169 memcpy(ivec
+ EVP_CCM_TLS_FIXED_IV_LEN
, in
, EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2170 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2172 /* Process aad (sequence number|type|version|length) */
2173 s390x_aes_ccm_aad(cctx
, buf
, cctx
->aes
.ccm
.tls_aad_len
);
2175 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2176 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2179 if (s390x_aes_ccm(cctx
, in
, out
, len
, enc
))
2182 memcpy(out
+ len
, cctx
->aes
.ccm
.kmac_param
.icv
.b
, cctx
->aes
.ccm
.m
);
2183 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->aes
.ccm
.m
;
2185 if (!s390x_aes_ccm(cctx
, in
, out
, len
, enc
)) {
2186 if (!CRYPTO_memcmp(cctx
->aes
.ccm
.kmac_param
.icv
.b
, in
+ len
,
2191 OPENSSL_cleanse(out
, len
);
2197 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2200 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
,
2201 const unsigned char *key
,
2202 const unsigned char *iv
, int enc
)
2204 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2205 unsigned char *ivec
;
2208 if (iv
== NULL
&& key
== NULL
)
2212 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
2213 cctx
->aes
.ccm
.fc
= S390X_AES_FC(keylen
);
2214 memcpy(cctx
->aes
.ccm
.kmac_param
.k
, key
, keylen
);
2216 /* Store encoded m and l. */
2217 cctx
->aes
.ccm
.nonce
.b
[0] = ((cctx
->aes
.ccm
.l
- 1) & 0x7)
2218 | (((cctx
->aes
.ccm
.m
- 2) >> 1) & 0x7) << 3;
2219 memset(cctx
->aes
.ccm
.nonce
.b
+ 1, 0,
2220 sizeof(cctx
->aes
.ccm
.nonce
.b
));
2221 cctx
->aes
.ccm
.blocks
= 0;
2223 cctx
->aes
.ccm
.key_set
= 1;
2227 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2228 memcpy(ivec
, iv
, 15 - cctx
->aes
.ccm
.l
);
2230 cctx
->aes
.ccm
.iv_set
= 1;
2237 * Called from EVP layer to initialize context, process additional
2238 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2239 * plaintext or process a TLS packet, depending on context. Returns bytes
2240 * written on success. Otherwise -1 is returned.
2242 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2243 const unsigned char *in
, size_t len
)
2245 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2246 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
2248 unsigned char *buf
, *ivec
;
2250 if (!cctx
->aes
.ccm
.key_set
)
2253 if (cctx
->aes
.ccm
.tls_aad_len
>= 0)
2254 return s390x_aes_ccm_tls_cipher(ctx
, out
, in
, len
);
2257 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2258 * so integrity must be checked already at Update() i.e., before
2259 * potentially corrupted data is output.
2261 if (in
== NULL
&& out
!= NULL
)
2264 if (!cctx
->aes
.ccm
.iv_set
)
2267 if (!enc
&& !cctx
->aes
.ccm
.tag_set
)
2271 /* Update(): Pass message length. */
2273 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2274 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2276 cctx
->aes
.ccm
.len_set
= 1;
2280 /* Update(): Process aad. */
2281 if (!cctx
->aes
.ccm
.len_set
&& len
)
2284 s390x_aes_ccm_aad(cctx
, in
, len
);
2288 /* Update(): Process message. */
2290 if (!cctx
->aes
.ccm
.len_set
) {
2292 * In case message length was not previously set explicitly via
2293 * Update(), set it now.
2295 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2296 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2298 cctx
->aes
.ccm
.len_set
= 1;
2302 if (s390x_aes_ccm(cctx
, in
, out
, len
, enc
))
2305 cctx
->aes
.ccm
.tag_set
= 1;
2310 if (!s390x_aes_ccm(cctx
, in
, out
, len
, enc
)) {
2311 buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
2312 if (!CRYPTO_memcmp(cctx
->aes
.ccm
.kmac_param
.icv
.b
, buf
,
2318 OPENSSL_cleanse(out
, len
);
2320 cctx
->aes
.ccm
.iv_set
= 0;
2321 cctx
->aes
.ccm
.tag_set
= 0;
2322 cctx
->aes
.ccm
.len_set
= 0;
2328 * Performs various operations on the context structure depending on control
2329 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2330 * Code is big-endian.
2332 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2334 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, c
);
2335 unsigned char *buf
, *iv
;
2340 cctx
->aes
.ccm
.key_set
= 0;
2341 cctx
->aes
.ccm
.iv_set
= 0;
2342 cctx
->aes
.ccm
.l
= 8;
2343 cctx
->aes
.ccm
.m
= 12;
2344 cctx
->aes
.ccm
.tag_set
= 0;
2345 cctx
->aes
.ccm
.len_set
= 0;
2346 cctx
->aes
.ccm
.tls_aad_len
= -1;
2349 case EVP_CTRL_AEAD_TLS1_AAD
:
2350 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
2353 /* Save the aad for later use. */
2354 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
2355 memcpy(buf
, ptr
, arg
);
2356 cctx
->aes
.ccm
.tls_aad_len
= arg
;
2358 len
= buf
[arg
- 2] << 8 | buf
[arg
- 1];
2359 if (len
< EVP_CCM_TLS_EXPLICIT_IV_LEN
)
2362 /* Correct length for explicit iv. */
2363 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2365 enc
= EVP_CIPHER_CTX_encrypting(c
);
2367 if (len
< cctx
->aes
.ccm
.m
)
2370 /* Correct length for tag. */
2371 len
-= cctx
->aes
.ccm
.m
;
2374 buf
[arg
- 2] = len
>> 8;
2375 buf
[arg
- 1] = len
& 0xff;
2377 /* Extra padding: tag appended to record. */
2378 return cctx
->aes
.ccm
.m
;
2380 case EVP_CTRL_CCM_SET_IV_FIXED
:
2381 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
2384 /* Copy to first part of the iv. */
2385 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
2386 memcpy(iv
, ptr
, arg
);
2389 case EVP_CTRL_AEAD_SET_IVLEN
:
2393 case EVP_CTRL_CCM_SET_L
:
2394 if (arg
< 2 || arg
> 8)
2397 cctx
->aes
.ccm
.l
= arg
;
2400 case EVP_CTRL_AEAD_SET_TAG
:
2401 if ((arg
& 1) || arg
< 4 || arg
> 16)
2404 enc
= EVP_CIPHER_CTX_encrypting(c
);
2409 cctx
->aes
.ccm
.tag_set
= 1;
2410 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
2411 memcpy(buf
, ptr
, arg
);
2414 cctx
->aes
.ccm
.m
= arg
;
2417 case EVP_CTRL_AEAD_GET_TAG
:
2418 enc
= EVP_CIPHER_CTX_encrypting(c
);
2419 if (!enc
|| !cctx
->aes
.ccm
.tag_set
)
2422 if(arg
< cctx
->aes
.ccm
.m
)
2425 memcpy(ptr
, cctx
->aes
.ccm
.kmac_param
.icv
.b
, cctx
->aes
.ccm
.m
);
2426 cctx
->aes
.ccm
.tag_set
= 0;
2427 cctx
->aes
.ccm
.iv_set
= 0;
2428 cctx
->aes
.ccm
.len_set
= 0;
2439 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2441 # ifndef OPENSSL_NO_OCB
2442 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2443 # define S390X_aes_128_ocb_CAPABLE 0
2444 # define S390X_aes_192_ocb_CAPABLE 0
2445 # define S390X_aes_256_ocb_CAPABLE 0
2447 # define s390x_aes_ocb_init_key aes_ocb_init_key
2448 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2449 const unsigned char *iv
, int enc
);
2450 # define s390x_aes_ocb_cipher aes_ocb_cipher
2451 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2452 const unsigned char *in
, size_t len
);
2453 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2454 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX
*);
2455 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2456 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX
*, int type
, int arg
, void *ptr
);
2459 # ifndef OPENSSL_NO_SIV
2460 # define S390X_AES_SIV_CTX EVP_AES_SIV_CTX
2461 # define S390X_aes_128_siv_CAPABLE 0
2462 # define S390X_aes_192_siv_CAPABLE 0
2463 # define S390X_aes_256_siv_CAPABLE 0
2465 # define s390x_aes_siv_init_key aes_siv_init_key
2466 # define s390x_aes_siv_cipher aes_siv_cipher
2467 # define s390x_aes_siv_cleanup aes_siv_cleanup
2468 # define s390x_aes_siv_ctrl aes_siv_ctrl
2471 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2473 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2474 nid##_##keylen##_##nmode,blocksize, \
2477 flags | EVP_CIPH_##MODE##_MODE, \
2478 s390x_aes_##mode##_init_key, \
2479 s390x_aes_##mode##_cipher, \
2481 sizeof(S390X_AES_##MODE##_CTX), \
2487 static const EVP_CIPHER aes_##keylen##_##mode = { \
2488 nid##_##keylen##_##nmode, \
2492 flags | EVP_CIPH_##MODE##_MODE, \
2494 aes_##mode##_cipher, \
2496 sizeof(EVP_AES_KEY), \
2502 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2504 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2505 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2508 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2509 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2510 nid##_##keylen##_##mode, \
2512 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
2514 flags | EVP_CIPH_##MODE##_MODE, \
2515 s390x_aes_##mode##_init_key, \
2516 s390x_aes_##mode##_cipher, \
2517 s390x_aes_##mode##_cleanup, \
2518 sizeof(S390X_AES_##MODE##_CTX), \
2521 s390x_aes_##mode##_ctrl, \
2524 static const EVP_CIPHER aes_##keylen##_##mode = { \
2525 nid##_##keylen##_##mode,blocksize, \
2526 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
2528 flags | EVP_CIPH_##MODE##_MODE, \
2529 aes_##mode##_init_key, \
2530 aes_##mode##_cipher, \
2531 aes_##mode##_cleanup, \
2532 sizeof(EVP_AES_##MODE##_CTX), \
2535 aes_##mode##_ctrl, \
2538 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2540 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2541 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2546 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2547 static const EVP_CIPHER aes_##keylen##_##mode = { \
2548 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2549 flags|EVP_CIPH_##MODE##_MODE, \
2551 aes_##mode##_cipher, \
2553 sizeof(EVP_AES_KEY), \
2554 NULL,NULL,NULL,NULL }; \
2555 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2556 { return &aes_##keylen##_##mode; }
2558 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2559 static const EVP_CIPHER aes_##keylen##_##mode = { \
2560 nid##_##keylen##_##mode,blocksize, \
2561 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
2563 flags|EVP_CIPH_##MODE##_MODE, \
2564 aes_##mode##_init_key, \
2565 aes_##mode##_cipher, \
2566 aes_##mode##_cleanup, \
2567 sizeof(EVP_AES_##MODE##_CTX), \
2568 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2569 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2570 { return &aes_##keylen##_##mode; }
2574 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2575 # include "arm_arch.h"
2576 # if __ARM_MAX_ARCH__>=7
2577 # if defined(BSAES_ASM)
2578 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2580 # if defined(VPAES_ASM)
2581 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2583 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2584 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2585 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2586 # define HWAES_encrypt aes_v8_encrypt
2587 # define HWAES_decrypt aes_v8_decrypt
2588 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2589 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2593 #if defined(HWAES_CAPABLE)
2594 int HWAES_set_encrypt_key(const unsigned char *userKey
, const int bits
,
2596 int HWAES_set_decrypt_key(const unsigned char *userKey
, const int bits
,
2598 void HWAES_encrypt(const unsigned char *in
, unsigned char *out
,
2599 const AES_KEY
*key
);
2600 void HWAES_decrypt(const unsigned char *in
, unsigned char *out
,
2601 const AES_KEY
*key
);
2602 void HWAES_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
2603 size_t length
, const AES_KEY
*key
,
2604 unsigned char *ivec
, const int enc
);
2605 void HWAES_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
2606 size_t len
, const AES_KEY
*key
,
2607 const unsigned char ivec
[16]);
2608 void HWAES_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
2609 size_t len
, const AES_KEY
*key1
,
2610 const AES_KEY
*key2
, const unsigned char iv
[16]);
2611 void HWAES_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
2612 size_t len
, const AES_KEY
*key1
,
2613 const AES_KEY
*key2
, const unsigned char iv
[16]);
2616 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2617 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2618 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2619 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2620 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2621 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2622 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2623 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2625 static int aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2626 const unsigned char *iv
, int enc
)
2629 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2631 mode
= EVP_CIPHER_CTX_mode(ctx
);
2632 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
2634 #ifdef HWAES_CAPABLE
2635 if (HWAES_CAPABLE
) {
2636 ret
= HWAES_set_decrypt_key(key
,
2637 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2639 dat
->block
= (block128_f
) HWAES_decrypt
;
2640 dat
->stream
.cbc
= NULL
;
2641 # ifdef HWAES_cbc_encrypt
2642 if (mode
== EVP_CIPH_CBC_MODE
)
2643 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
2647 #ifdef BSAES_CAPABLE
2648 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CBC_MODE
) {
2649 ret
= AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2651 dat
->block
= (block128_f
) AES_decrypt
;
2652 dat
->stream
.cbc
= (cbc128_f
) bsaes_cbc_encrypt
;
2655 #ifdef VPAES_CAPABLE
2656 if (VPAES_CAPABLE
) {
2657 ret
= vpaes_set_decrypt_key(key
,
2658 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2660 dat
->block
= (block128_f
) vpaes_decrypt
;
2661 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2662 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
2666 ret
= AES_set_decrypt_key(key
,
2667 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2669 dat
->block
= (block128_f
) AES_decrypt
;
2670 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2671 (cbc128_f
) AES_cbc_encrypt
: NULL
;
2674 #ifdef HWAES_CAPABLE
2675 if (HWAES_CAPABLE
) {
2676 ret
= HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2678 dat
->block
= (block128_f
) HWAES_encrypt
;
2679 dat
->stream
.cbc
= NULL
;
2680 # ifdef HWAES_cbc_encrypt
2681 if (mode
== EVP_CIPH_CBC_MODE
)
2682 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
2685 # ifdef HWAES_ctr32_encrypt_blocks
2686 if (mode
== EVP_CIPH_CTR_MODE
)
2687 dat
->stream
.ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
2690 (void)0; /* terminate potentially open 'else' */
2693 #ifdef BSAES_CAPABLE
2694 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CTR_MODE
) {
2695 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2697 dat
->block
= (block128_f
) AES_encrypt
;
2698 dat
->stream
.ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
2701 #ifdef VPAES_CAPABLE
2702 if (VPAES_CAPABLE
) {
2703 ret
= vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2705 dat
->block
= (block128_f
) vpaes_encrypt
;
2706 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2707 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
2711 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2713 dat
->block
= (block128_f
) AES_encrypt
;
2714 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2715 (cbc128_f
) AES_cbc_encrypt
: NULL
;
2717 if (mode
== EVP_CIPH_CTR_MODE
)
2718 dat
->stream
.ctr
= (ctr128_f
) AES_ctr32_encrypt
;
2723 EVPerr(EVP_F_AES_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
2730 static int aes_cbc_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 if (dat
->stream
.cbc
)
2736 (*dat
->stream
.cbc
) (in
, out
, len
, &dat
->ks
,
2737 EVP_CIPHER_CTX_iv_noconst(ctx
),
2738 EVP_CIPHER_CTX_encrypting(ctx
));
2739 else if (EVP_CIPHER_CTX_encrypting(ctx
))
2740 CRYPTO_cbc128_encrypt(in
, out
, len
, &dat
->ks
,
2741 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
2743 CRYPTO_cbc128_decrypt(in
, out
, len
, &dat
->ks
,
2744 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
2749 static int aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2750 const unsigned char *in
, size_t len
)
2752 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
2754 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2759 for (i
= 0, len
-= bl
; i
<= len
; i
+= bl
)
2760 (*dat
->block
) (in
+ i
, out
+ i
, &dat
->ks
);
2765 static int aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2766 const unsigned char *in
, size_t len
)
2768 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2770 int num
= EVP_CIPHER_CTX_num(ctx
);
2771 CRYPTO_ofb128_encrypt(in
, out
, len
, &dat
->ks
,
2772 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, dat
->block
);
2773 EVP_CIPHER_CTX_set_num(ctx
, num
);
2777 static int aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2778 const unsigned char *in
, size_t len
)
2780 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2782 int num
= EVP_CIPHER_CTX_num(ctx
);
2783 CRYPTO_cfb128_encrypt(in
, out
, len
, &dat
->ks
,
2784 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2785 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2786 EVP_CIPHER_CTX_set_num(ctx
, num
);
2790 static int aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2791 const unsigned char *in
, size_t len
)
2793 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2795 int num
= EVP_CIPHER_CTX_num(ctx
);
2796 CRYPTO_cfb128_8_encrypt(in
, out
, len
, &dat
->ks
,
2797 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2798 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2799 EVP_CIPHER_CTX_set_num(ctx
, num
);
2803 static int aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2804 const unsigned char *in
, size_t len
)
2806 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2808 if (EVP_CIPHER_CTX_test_flags(ctx
, EVP_CIPH_FLAG_LENGTH_BITS
)) {
2809 int num
= EVP_CIPHER_CTX_num(ctx
);
2810 CRYPTO_cfb128_1_encrypt(in
, out
, len
, &dat
->ks
,
2811 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2812 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2813 EVP_CIPHER_CTX_set_num(ctx
, num
);
2817 while (len
>= MAXBITCHUNK
) {
2818 int num
= EVP_CIPHER_CTX_num(ctx
);
2819 CRYPTO_cfb128_1_encrypt(in
, out
, MAXBITCHUNK
* 8, &dat
->ks
,
2820 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2821 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2822 EVP_CIPHER_CTX_set_num(ctx
, num
);
2828 int num
= EVP_CIPHER_CTX_num(ctx
);
2829 CRYPTO_cfb128_1_encrypt(in
, out
, len
* 8, &dat
->ks
,
2830 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2831 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2832 EVP_CIPHER_CTX_set_num(ctx
, num
);
2838 static int aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2839 const unsigned char *in
, size_t len
)
2841 unsigned int num
= EVP_CIPHER_CTX_num(ctx
);
2842 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2844 if (dat
->stream
.ctr
)
2845 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
, &dat
->ks
,
2846 EVP_CIPHER_CTX_iv_noconst(ctx
),
2847 EVP_CIPHER_CTX_buf_noconst(ctx
),
2848 &num
, dat
->stream
.ctr
);
2850 CRYPTO_ctr128_encrypt(in
, out
, len
, &dat
->ks
,
2851 EVP_CIPHER_CTX_iv_noconst(ctx
),
2852 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
2854 EVP_CIPHER_CTX_set_num(ctx
, num
);
2858 BLOCK_CIPHER_generic_pack(NID_aes
, 128, 0)
2859 BLOCK_CIPHER_generic_pack(NID_aes
, 192, 0)
2860 BLOCK_CIPHER_generic_pack(NID_aes
, 256, 0)
2862 static int aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
2864 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
2867 OPENSSL_cleanse(&gctx
->gcm
, sizeof(gctx
->gcm
));
2868 if (gctx
->iv
!= EVP_CIPHER_CTX_iv_noconst(c
))
2869 OPENSSL_free(gctx
->iv
);
2873 static int aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2875 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
2880 gctx
->ivlen
= c
->cipher
->iv_len
;
2884 gctx
->tls_aad_len
= -1;
2887 case EVP_CTRL_AEAD_SET_IVLEN
:
2890 /* Allocate memory for IV if needed */
2891 if ((arg
> EVP_MAX_IV_LENGTH
) && (arg
> gctx
->ivlen
)) {
2892 if (gctx
->iv
!= c
->iv
)
2893 OPENSSL_free(gctx
->iv
);
2894 if ((gctx
->iv
= OPENSSL_malloc(arg
)) == NULL
) {
2895 EVPerr(EVP_F_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
2902 case EVP_CTRL_AEAD_SET_TAG
:
2903 if (arg
<= 0 || arg
> 16 || c
->encrypt
)
2905 memcpy(c
->buf
, ptr
, arg
);
2909 case EVP_CTRL_AEAD_GET_TAG
:
2910 if (arg
<= 0 || arg
> 16 || !c
->encrypt
2911 || gctx
->taglen
< 0)
2913 memcpy(ptr
, c
->buf
, arg
);
2916 case EVP_CTRL_GET_IV
:
2917 if (gctx
->iv_gen
!= 1 && gctx
->iv_gen_rand
!= 1)
2919 if (gctx
->ivlen
!= arg
)
2921 memcpy(ptr
, gctx
->iv
, arg
);
2924 case EVP_CTRL_GCM_SET_IV_FIXED
:
2925 /* Special case: -1 length restores whole IV */
2927 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
2932 * Fixed field must be at least 4 bytes and invocation field at least
2935 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
2938 memcpy(gctx
->iv
, ptr
, arg
);
2939 if (c
->encrypt
&& RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
2944 case EVP_CTRL_GCM_IV_GEN
:
2945 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
2947 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
2948 if (arg
<= 0 || arg
> gctx
->ivlen
)
2950 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
2952 * Invocation field will be at least 8 bytes in size and so no need
2953 * to check wrap around or increment more than last 8 bytes.
2955 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
2959 case EVP_CTRL_GCM_SET_IV_INV
:
2960 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0 || c
->encrypt
)
2962 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
2963 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
2967 case EVP_CTRL_AEAD_TLS1_AAD
:
2968 /* Save the AAD for later use */
2969 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
2971 memcpy(c
->buf
, ptr
, arg
);
2972 gctx
->tls_aad_len
= arg
;
2973 gctx
->tls_enc_records
= 0;
2975 unsigned int len
= c
->buf
[arg
- 2] << 8 | c
->buf
[arg
- 1];
2976 /* Correct length for explicit IV */
2977 if (len
< EVP_GCM_TLS_EXPLICIT_IV_LEN
)
2979 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
2980 /* If decrypting correct for tag too */
2982 if (len
< EVP_GCM_TLS_TAG_LEN
)
2984 len
-= EVP_GCM_TLS_TAG_LEN
;
2986 c
->buf
[arg
- 2] = len
>> 8;
2987 c
->buf
[arg
- 1] = len
& 0xff;
2989 /* Extra padding: tag appended to record */
2990 return EVP_GCM_TLS_TAG_LEN
;
2994 EVP_CIPHER_CTX
*out
= ptr
;
2995 EVP_AES_GCM_CTX
*gctx_out
= EVP_C_DATA(EVP_AES_GCM_CTX
,out
);
2996 if (gctx
->gcm
.key
) {
2997 if (gctx
->gcm
.key
!= &gctx
->ks
)
2999 gctx_out
->gcm
.key
= &gctx_out
->ks
;
3001 if (gctx
->iv
== c
->iv
)
3002 gctx_out
->iv
= out
->iv
;
3004 if ((gctx_out
->iv
= OPENSSL_malloc(gctx
->ivlen
)) == NULL
) {
3005 EVPerr(EVP_F_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
3008 memcpy(gctx_out
->iv
, gctx
->iv
, gctx
->ivlen
);
3019 static int aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3020 const unsigned char *iv
, int enc
)
3022 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3027 #ifdef HWAES_CAPABLE
3028 if (HWAES_CAPABLE
) {
3029 HWAES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3030 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3031 (block128_f
) HWAES_encrypt
);
3032 # ifdef HWAES_ctr32_encrypt_blocks
3033 gctx
->ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
3040 #ifdef BSAES_CAPABLE
3041 if (BSAES_CAPABLE
) {
3042 AES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3043 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3044 (block128_f
) AES_encrypt
);
3045 gctx
->ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
3049 #ifdef VPAES_CAPABLE
3050 if (VPAES_CAPABLE
) {
3051 vpaes_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3052 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3053 (block128_f
) vpaes_encrypt
);
3058 (void)0; /* terminate potentially open 'else' */
3060 AES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3061 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3062 (block128_f
) AES_encrypt
);
3064 gctx
->ctr
= (ctr128_f
) AES_ctr32_encrypt
;
3071 * If we have an iv can set it directly, otherwise use saved IV.
3073 if (iv
== NULL
&& gctx
->iv_set
)
3076 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
3081 /* If key set use IV, otherwise copy */
3083 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
3085 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
3093 * Handle TLS GCM packet format. This consists of the last portion of the IV
3094 * followed by the payload and finally the tag. On encrypt generate IV,
3095 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3099 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3100 const unsigned char *in
, size_t len
)
3102 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3104 /* Encrypt/decrypt must be performed in place */
3106 || len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
3110 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3111 * Requirements from SP 800-38D". The requirements is for one party to the
3112 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3115 if (ctx
->encrypt
&& ++gctx
->tls_enc_records
== 0) {
3116 EVPerr(EVP_F_AES_GCM_TLS_CIPHER
, EVP_R_TOO_MANY_RECORDS
);
3121 * Set IV from start of buffer or generate IV and write to start of
3124 if (EVP_CIPHER_CTX_ctrl(ctx
, ctx
->encrypt
? EVP_CTRL_GCM_IV_GEN
3125 : EVP_CTRL_GCM_SET_IV_INV
,
3126 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
3129 if (CRYPTO_gcm128_aad(&gctx
->gcm
, ctx
->buf
, gctx
->tls_aad_len
))
3131 /* Fix buffer and length to point to payload */
3132 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
3133 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
3134 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
3136 /* Encrypt payload */
3139 #if defined(AES_GCM_ASM)
3140 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
3141 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3144 bulk
= AES_gcm_encrypt(in
, out
, len
,
3146 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3147 gctx
->gcm
.len
.u
[1] += bulk
;
3150 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
3153 len
- bulk
, gctx
->ctr
))
3157 #if defined(AES_GCM_ASM2)
3158 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
3159 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3162 bulk
= AES_gcm_encrypt(in
, out
, len
,
3164 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3165 gctx
->gcm
.len
.u
[1] += bulk
;
3168 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
3169 in
+ bulk
, out
+ bulk
, len
- bulk
))
3173 /* Finally write tag */
3174 CRYPTO_gcm128_tag(&gctx
->gcm
, out
, EVP_GCM_TLS_TAG_LEN
);
3175 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
3180 #if defined(AES_GCM_ASM)
3181 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
3182 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3185 bulk
= AES_gcm_decrypt(in
, out
, len
,
3187 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3188 gctx
->gcm
.len
.u
[1] += bulk
;
3191 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
3194 len
- bulk
, gctx
->ctr
))
3198 #if defined(AES_GCM_ASM2)
3199 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
3200 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3203 bulk
= AES_gcm_decrypt(in
, out
, len
,
3205 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3206 gctx
->gcm
.len
.u
[1] += bulk
;
3209 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
3210 in
+ bulk
, out
+ bulk
, len
- bulk
))
3214 CRYPTO_gcm128_tag(&gctx
->gcm
, ctx
->buf
, EVP_GCM_TLS_TAG_LEN
);
3215 /* If tag mismatch wipe buffer */
3216 if (CRYPTO_memcmp(ctx
->buf
, in
+ len
, EVP_GCM_TLS_TAG_LEN
)) {
3217 OPENSSL_cleanse(out
, len
);
3225 gctx
->tls_aad_len
= -1;
3231 * See SP800-38D (GCM) Section 8 "Uniqueness requirement on IVS and keys"
3233 * See also 8.2.2 RBG-based construction.
3234 * Random construction consists of a free field (which can be NULL) and a
3235 * random field which will use a DRBG that can return at least 96 bits of
3236 * entropy strength. (The DRBG must be seeded by the FIPS module).
3238 static int aes_gcm_iv_generate(EVP_AES_GCM_CTX
*gctx
, int offset
)
3240 int sz
= gctx
->ivlen
- offset
;
3242 /* Must be at least 96 bits */
3243 if (sz
<= 0 || gctx
->ivlen
< 12)
3246 /* Use DRBG to generate random iv */
3247 if (RAND_bytes(gctx
->iv
+ offset
, sz
) <= 0)
3251 #endif /* FIPS_MODE */
3253 static int aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3254 const unsigned char *in
, size_t len
)
3256 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3258 /* If not set up, return error */
3262 if (gctx
->tls_aad_len
>= 0)
3263 return aes_gcm_tls_cipher(ctx
, out
, in
, len
);
3267 * FIPS requires generation of AES-GCM IV's inside the FIPS module.
3268 * The IV can still be set externally (the security policy will state that
3269 * this is not FIPS compliant). There are some applications
3270 * where setting the IV externally is the only option available.
3272 if (!gctx
->iv_set
) {
3273 if (!ctx
->encrypt
|| !aes_gcm_iv_generate(gctx
, 0))
3275 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
3277 gctx
->iv_gen_rand
= 1;
3282 #endif /* FIPS_MODE */
3286 if (CRYPTO_gcm128_aad(&gctx
->gcm
, in
, len
))
3288 } else if (ctx
->encrypt
) {
3291 #if defined(AES_GCM_ASM)
3292 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
3293 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3295 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
3298 bulk
= AES_gcm_encrypt(in
+ res
,
3299 out
+ res
, len
- res
,
3300 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
3302 gctx
->gcm
.len
.u
[1] += bulk
;
3306 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
3309 len
- bulk
, gctx
->ctr
))
3313 #if defined(AES_GCM_ASM2)
3314 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
3315 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3317 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
3320 bulk
= AES_gcm_encrypt(in
+ res
,
3321 out
+ res
, len
- res
,
3322 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
3324 gctx
->gcm
.len
.u
[1] += bulk
;
3328 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
3329 in
+ bulk
, out
+ bulk
, len
- bulk
))
3335 #if defined(AES_GCM_ASM)
3336 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
3337 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3339 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
3342 bulk
= AES_gcm_decrypt(in
+ res
,
3343 out
+ res
, len
- res
,
3345 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3346 gctx
->gcm
.len
.u
[1] += bulk
;
3350 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
3353 len
- bulk
, gctx
->ctr
))
3357 #if defined(AES_GCM_ASM2)
3358 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
3359 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3361 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
3364 bulk
= AES_gcm_decrypt(in
+ res
,
3365 out
+ res
, len
- res
,
3367 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3368 gctx
->gcm
.len
.u
[1] += bulk
;
3372 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
3373 in
+ bulk
, out
+ bulk
, len
- bulk
))
3379 if (!ctx
->encrypt
) {
3380 if (gctx
->taglen
< 0)
3382 if (CRYPTO_gcm128_finish(&gctx
->gcm
, ctx
->buf
, gctx
->taglen
) != 0)
3387 CRYPTO_gcm128_tag(&gctx
->gcm
, ctx
->buf
, 16);
3389 /* Don't reuse the IV */
3396 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3397 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3398 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3399 | EVP_CIPH_CUSTOM_COPY)
3401 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, gcm
, GCM
,
3402 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3403 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, gcm
, GCM
,
3404 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3405 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, gcm
, GCM
,
3406 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3408 static int aes_xts_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3410 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,c
);
3411 if (type
== EVP_CTRL_COPY
) {
3412 EVP_CIPHER_CTX
*out
= ptr
;
3413 EVP_AES_XTS_CTX
*xctx_out
= EVP_C_DATA(EVP_AES_XTS_CTX
,out
);
3414 if (xctx
->xts
.key1
) {
3415 if (xctx
->xts
.key1
!= &xctx
->ks1
)
3417 xctx_out
->xts
.key1
= &xctx_out
->ks1
;
3419 if (xctx
->xts
.key2
) {
3420 if (xctx
->xts
.key2
!= &xctx
->ks2
)
3422 xctx_out
->xts
.key2
= &xctx_out
->ks2
;
3425 } else if (type
!= EVP_CTRL_INIT
)
3427 /* key1 and key2 are used as an indicator both key and IV are set */
3428 xctx
->xts
.key1
= NULL
;
3429 xctx
->xts
.key2
= NULL
;
3433 static int aes_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3434 const unsigned char *iv
, int enc
)
3436 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
3442 /* The key is two half length keys in reality */
3443 const int bytes
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
3444 const int bits
= bytes
* 8;
3447 * Verify that the two keys are different.
3449 * This addresses the vulnerability described in Rogaway's
3450 * September 2004 paper:
3452 * "Efficient Instantiations of Tweakable Blockciphers and
3453 * Refinements to Modes OCB and PMAC".
3454 * (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf)
3456 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states
3458 * "The check for Key_1 != Key_2 shall be done at any place
3459 * BEFORE using the keys in the XTS-AES algorithm to process
3462 if (memcmp(key
, key
+ bytes
, bytes
) == 0) {
3463 EVPerr(EVP_F_AES_XTS_INIT_KEY
, EVP_R_XTS_DUPLICATED_KEYS
);
3468 xctx
->stream
= enc
? AES_xts_encrypt
: AES_xts_decrypt
;
3470 xctx
->stream
= NULL
;
3472 /* key_len is two AES keys */
3473 #ifdef HWAES_CAPABLE
3474 if (HWAES_CAPABLE
) {
3476 HWAES_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3477 xctx
->xts
.block1
= (block128_f
) HWAES_encrypt
;
3478 # ifdef HWAES_xts_encrypt
3479 xctx
->stream
= HWAES_xts_encrypt
;
3482 HWAES_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3483 xctx
->xts
.block1
= (block128_f
) HWAES_decrypt
;
3484 # ifdef HWAES_xts_decrypt
3485 xctx
->stream
= HWAES_xts_decrypt
;
3489 HWAES_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
3490 xctx
->xts
.block2
= (block128_f
) HWAES_encrypt
;
3492 xctx
->xts
.key1
= &xctx
->ks1
;
3496 #ifdef BSAES_CAPABLE
3498 xctx
->stream
= enc
? bsaes_xts_encrypt
: bsaes_xts_decrypt
;
3501 #ifdef VPAES_CAPABLE
3502 if (VPAES_CAPABLE
) {
3504 vpaes_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3505 xctx
->xts
.block1
= (block128_f
) vpaes_encrypt
;
3507 vpaes_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3508 xctx
->xts
.block1
= (block128_f
) vpaes_decrypt
;
3511 vpaes_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
3512 xctx
->xts
.block2
= (block128_f
) vpaes_encrypt
;
3514 xctx
->xts
.key1
= &xctx
->ks1
;
3518 (void)0; /* terminate potentially open 'else' */
3521 AES_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3522 xctx
->xts
.block1
= (block128_f
) AES_encrypt
;
3524 AES_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3525 xctx
->xts
.block1
= (block128_f
) AES_decrypt
;
3528 AES_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
3529 xctx
->xts
.block2
= (block128_f
) AES_encrypt
;
3531 xctx
->xts
.key1
= &xctx
->ks1
;
3536 xctx
->xts
.key2
= &xctx
->ks2
;
3537 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
3543 static int aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3544 const unsigned char *in
, size_t len
)
3546 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
3548 if (xctx
->xts
.key1
== NULL
3549 || xctx
->xts
.key2
== NULL
3552 || len
< AES_BLOCK_SIZE
)
3556 * Impose a limit of 2^20 blocks per data unit as specifed by
3557 * IEEE Std 1619-2018. The earlier and obsolete IEEE Std 1619-2007
3558 * indicated that this was a SHOULD NOT rather than a MUST NOT.
3559 * NIST SP 800-38E mandates the same limit.
3561 if (len
> XTS_MAX_BLOCKS_PER_DATA_UNIT
* AES_BLOCK_SIZE
) {
3562 EVPerr(EVP_F_AES_XTS_CIPHER
, EVP_R_XTS_DATA_UNIT_IS_TOO_LARGE
);
3567 (*xctx
->stream
) (in
, out
, len
,
3568 xctx
->xts
.key1
, xctx
->xts
.key2
,
3569 EVP_CIPHER_CTX_iv_noconst(ctx
));
3570 else if (CRYPTO_xts128_encrypt(&xctx
->xts
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3572 EVP_CIPHER_CTX_encrypting(ctx
)))
3577 #define aes_xts_cleanup NULL
3579 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3580 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3581 | EVP_CIPH_CUSTOM_COPY)
3583 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 16, xts
, XTS
, XTS_FLAGS
)
3584 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 16, xts
, XTS
, XTS_FLAGS
)
3586 static int aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3588 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,c
);
3597 cctx
->tls_aad_len
= -1;
3600 case EVP_CTRL_AEAD_TLS1_AAD
:
3601 /* Save the AAD for later use */
3602 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
3604 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
3605 cctx
->tls_aad_len
= arg
;
3608 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] << 8
3609 | EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1];
3610 /* Correct length for explicit IV */
3611 if (len
< EVP_CCM_TLS_EXPLICIT_IV_LEN
)
3613 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3614 /* If decrypting correct for tag too */
3615 if (!EVP_CIPHER_CTX_encrypting(c
)) {
3620 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] = len
>> 8;
3621 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1] = len
& 0xff;
3623 /* Extra padding: tag appended to record */
3626 case EVP_CTRL_CCM_SET_IV_FIXED
:
3627 /* Sanity check length */
3628 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
3630 /* Just copy to first part of IV */
3631 memcpy(EVP_CIPHER_CTX_iv_noconst(c
), ptr
, arg
);
3634 case EVP_CTRL_AEAD_SET_IVLEN
:
3637 case EVP_CTRL_CCM_SET_L
:
3638 if (arg
< 2 || arg
> 8)
3643 case EVP_CTRL_AEAD_SET_TAG
:
3644 if ((arg
& 1) || arg
< 4 || arg
> 16)
3646 if (EVP_CIPHER_CTX_encrypting(c
) && ptr
)
3650 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
3655 case EVP_CTRL_AEAD_GET_TAG
:
3656 if (!EVP_CIPHER_CTX_encrypting(c
) || !cctx
->tag_set
)
3658 if (!CRYPTO_ccm128_tag(&cctx
->ccm
, ptr
, (size_t)arg
))
3667 EVP_CIPHER_CTX
*out
= ptr
;
3668 EVP_AES_CCM_CTX
*cctx_out
= EVP_C_DATA(EVP_AES_CCM_CTX
,out
);
3669 if (cctx
->ccm
.key
) {
3670 if (cctx
->ccm
.key
!= &cctx
->ks
)
3672 cctx_out
->ccm
.key
= &cctx_out
->ks
;
3683 static int aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3684 const unsigned char *iv
, int enc
)
3686 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3691 #ifdef HWAES_CAPABLE
3692 if (HWAES_CAPABLE
) {
3693 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3696 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3697 &cctx
->ks
, (block128_f
) HWAES_encrypt
);
3703 #ifdef VPAES_CAPABLE
3704 if (VPAES_CAPABLE
) {
3705 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3707 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3708 &cctx
->ks
, (block128_f
) vpaes_encrypt
);
3714 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3716 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3717 &cctx
->ks
, (block128_f
) AES_encrypt
);
3722 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
3728 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3729 const unsigned char *in
, size_t len
)
3731 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3732 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
3733 /* Encrypt/decrypt must be performed in place */
3734 if (out
!= in
|| len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->M
))
3736 /* If encrypting set explicit IV from sequence number (start of AAD) */
3737 if (EVP_CIPHER_CTX_encrypting(ctx
))
3738 memcpy(out
, EVP_CIPHER_CTX_buf_noconst(ctx
),
3739 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
3740 /* Get rest of IV from explicit IV */
3741 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
) + EVP_CCM_TLS_FIXED_IV_LEN
, in
,
3742 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
3743 /* Correct length value */
3744 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
3745 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
), 15 - cctx
->L
,
3749 CRYPTO_ccm128_aad(ccm
, EVP_CIPHER_CTX_buf_noconst(ctx
), cctx
->tls_aad_len
);
3750 /* Fix buffer to point to payload */
3751 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3752 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3753 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3754 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
3756 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
3758 if (!CRYPTO_ccm128_tag(ccm
, out
+ len
, cctx
->M
))
3760 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
3762 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
3764 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
3765 unsigned char tag
[16];
3766 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
3767 if (!CRYPTO_memcmp(tag
, in
+ len
, cctx
->M
))
3771 OPENSSL_cleanse(out
, len
);
3776 static int aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3777 const unsigned char *in
, size_t len
)
3779 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3780 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
3781 /* If not set up, return error */
3785 if (cctx
->tls_aad_len
>= 0)
3786 return aes_ccm_tls_cipher(ctx
, out
, in
, len
);
3788 /* EVP_*Final() doesn't return any data */
3789 if (in
== NULL
&& out
!= NULL
)
3795 if (!EVP_CIPHER_CTX_encrypting(ctx
) && !cctx
->tag_set
)
3799 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3805 /* If have AAD need message length */
3806 if (!cctx
->len_set
&& len
)
3808 CRYPTO_ccm128_aad(ccm
, in
, len
);
3811 /* If not set length yet do it */
3812 if (!cctx
->len_set
) {
3813 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3818 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3819 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
3821 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
3827 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
3829 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
3830 unsigned char tag
[16];
3831 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
3832 if (!CRYPTO_memcmp(tag
, EVP_CIPHER_CTX_buf_noconst(ctx
),
3838 OPENSSL_cleanse(out
, len
);
3846 #define aes_ccm_cleanup NULL
3848 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, ccm
, CCM
,
3849 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3850 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, ccm
, CCM
,
3851 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3852 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, ccm
, CCM
,
3853 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3860 /* Indicates if IV has been set */
3864 static int aes_wrap_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3865 const unsigned char *iv
, int enc
)
3867 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
3871 if (EVP_CIPHER_CTX_encrypting(ctx
))
3872 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3875 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3881 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, EVP_CIPHER_CTX_iv_length(ctx
));
3882 wctx
->iv
= EVP_CIPHER_CTX_iv_noconst(ctx
);
3887 static int aes_wrap_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3888 const unsigned char *in
, size_t inlen
)
3890 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
3892 /* AES wrap with padding has IV length of 4, without padding 8 */
3893 int pad
= EVP_CIPHER_CTX_iv_length(ctx
) == 4;
3894 /* No final operation so always return zero length */
3897 /* Input length must always be non-zero */
3900 /* If decrypting need at least 16 bytes and multiple of 8 */
3901 if (!EVP_CIPHER_CTX_encrypting(ctx
) && (inlen
< 16 || inlen
& 0x7))
3903 /* If not padding input must be multiple of 8 */
3904 if (!pad
&& inlen
& 0x7)
3906 if (is_partially_overlapping(out
, in
, inlen
)) {
3907 EVPerr(EVP_F_AES_WRAP_CIPHER
, EVP_R_PARTIALLY_OVERLAPPING
);
3911 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3912 /* If padding round up to multiple of 8 */
3914 inlen
= (inlen
+ 7) / 8 * 8;
3919 * If not padding output will be exactly 8 bytes smaller than
3920 * input. If padding it will be at least 8 bytes smaller but we
3921 * don't know how much.
3927 if (EVP_CIPHER_CTX_encrypting(ctx
))
3928 rv
= CRYPTO_128_wrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
3930 (block128_f
) AES_encrypt
);
3932 rv
= CRYPTO_128_unwrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
3934 (block128_f
) AES_decrypt
);
3936 if (EVP_CIPHER_CTX_encrypting(ctx
))
3937 rv
= CRYPTO_128_wrap(&wctx
->ks
.ks
, wctx
->iv
,
3938 out
, in
, inlen
, (block128_f
) AES_encrypt
);
3940 rv
= CRYPTO_128_unwrap(&wctx
->ks
.ks
, wctx
->iv
,
3941 out
, in
, inlen
, (block128_f
) AES_decrypt
);
3943 return rv
? (int)rv
: -1;
3946 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3947 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3948 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3950 static const EVP_CIPHER aes_128_wrap
= {
3952 8, 16, 8, WRAP_FLAGS
,
3953 aes_wrap_init_key
, aes_wrap_cipher
,
3955 sizeof(EVP_AES_WRAP_CTX
),
3956 NULL
, NULL
, NULL
, NULL
3959 const EVP_CIPHER
*EVP_aes_128_wrap(void)
3961 return &aes_128_wrap
;
3964 static const EVP_CIPHER aes_192_wrap
= {
3966 8, 24, 8, WRAP_FLAGS
,
3967 aes_wrap_init_key
, aes_wrap_cipher
,
3969 sizeof(EVP_AES_WRAP_CTX
),
3970 NULL
, NULL
, NULL
, NULL
3973 const EVP_CIPHER
*EVP_aes_192_wrap(void)
3975 return &aes_192_wrap
;
3978 static const EVP_CIPHER aes_256_wrap
= {
3980 8, 32, 8, WRAP_FLAGS
,
3981 aes_wrap_init_key
, aes_wrap_cipher
,
3983 sizeof(EVP_AES_WRAP_CTX
),
3984 NULL
, NULL
, NULL
, NULL
3987 const EVP_CIPHER
*EVP_aes_256_wrap(void)
3989 return &aes_256_wrap
;
3992 static const EVP_CIPHER aes_128_wrap_pad
= {
3993 NID_id_aes128_wrap_pad
,
3994 8, 16, 4, WRAP_FLAGS
,
3995 aes_wrap_init_key
, aes_wrap_cipher
,
3997 sizeof(EVP_AES_WRAP_CTX
),
3998 NULL
, NULL
, NULL
, NULL
4001 const EVP_CIPHER
*EVP_aes_128_wrap_pad(void)
4003 return &aes_128_wrap_pad
;
4006 static const EVP_CIPHER aes_192_wrap_pad
= {
4007 NID_id_aes192_wrap_pad
,
4008 8, 24, 4, WRAP_FLAGS
,
4009 aes_wrap_init_key
, aes_wrap_cipher
,
4011 sizeof(EVP_AES_WRAP_CTX
),
4012 NULL
, NULL
, NULL
, NULL
4015 const EVP_CIPHER
*EVP_aes_192_wrap_pad(void)
4017 return &aes_192_wrap_pad
;
4020 static const EVP_CIPHER aes_256_wrap_pad
= {
4021 NID_id_aes256_wrap_pad
,
4022 8, 32, 4, WRAP_FLAGS
,
4023 aes_wrap_init_key
, aes_wrap_cipher
,
4025 sizeof(EVP_AES_WRAP_CTX
),
4026 NULL
, NULL
, NULL
, NULL
4029 const EVP_CIPHER
*EVP_aes_256_wrap_pad(void)
4031 return &aes_256_wrap_pad
;
4034 #ifndef OPENSSL_NO_OCB
4035 static int aes_ocb_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
4037 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
4038 EVP_CIPHER_CTX
*newc
;
4039 EVP_AES_OCB_CTX
*new_octx
;
4045 octx
->ivlen
= EVP_CIPHER_CTX_iv_length(c
);
4046 octx
->iv
= EVP_CIPHER_CTX_iv_noconst(c
);
4048 octx
->data_buf_len
= 0;
4049 octx
->aad_buf_len
= 0;
4052 case EVP_CTRL_AEAD_SET_IVLEN
:
4053 /* IV len must be 1 to 15 */
4054 if (arg
<= 0 || arg
> 15)
4060 case EVP_CTRL_AEAD_SET_TAG
:
4062 /* Tag len must be 0 to 16 */
4063 if (arg
< 0 || arg
> 16)
4069 if (arg
!= octx
->taglen
|| EVP_CIPHER_CTX_encrypting(c
))
4071 memcpy(octx
->tag
, ptr
, arg
);
4074 case EVP_CTRL_AEAD_GET_TAG
:
4075 if (arg
!= octx
->taglen
|| !EVP_CIPHER_CTX_encrypting(c
))
4078 memcpy(ptr
, octx
->tag
, arg
);
4082 newc
= (EVP_CIPHER_CTX
*)ptr
;
4083 new_octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,newc
);
4084 return CRYPTO_ocb128_copy_ctx(&new_octx
->ocb
, &octx
->ocb
,
4085 &new_octx
->ksenc
.ks
,
4086 &new_octx
->ksdec
.ks
);
4094 # ifdef HWAES_CAPABLE
4095 # ifdef HWAES_ocb_encrypt
4096 void HWAES_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
4097 size_t blocks
, const void *key
,
4098 size_t start_block_num
,
4099 unsigned char offset_i
[16],
4100 const unsigned char L_
[][16],
4101 unsigned char checksum
[16]);
4103 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
4105 # ifdef HWAES_ocb_decrypt
4106 void HWAES_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
4107 size_t blocks
, const void *key
,
4108 size_t start_block_num
,
4109 unsigned char offset_i
[16],
4110 const unsigned char L_
[][16],
4111 unsigned char checksum
[16]);
4113 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
4117 static int aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
4118 const unsigned char *iv
, int enc
)
4120 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
4126 * We set both the encrypt and decrypt key here because decrypt
4127 * needs both. We could possibly optimise to remove setting the
4128 * decrypt for an encryption operation.
4130 # ifdef HWAES_CAPABLE
4131 if (HWAES_CAPABLE
) {
4132 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4134 HWAES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4136 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4137 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4138 (block128_f
) HWAES_encrypt
,
4139 (block128_f
) HWAES_decrypt
,
4140 enc
? HWAES_ocb_encrypt
4141 : HWAES_ocb_decrypt
))
4146 # ifdef VPAES_CAPABLE
4147 if (VPAES_CAPABLE
) {
4148 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4150 vpaes_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4152 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4153 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4154 (block128_f
) vpaes_encrypt
,
4155 (block128_f
) vpaes_decrypt
,
4161 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4163 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4165 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4166 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4167 (block128_f
) AES_encrypt
,
4168 (block128_f
) AES_decrypt
,
4175 * If we have an iv we can set it directly, otherwise use saved IV.
4177 if (iv
== NULL
&& octx
->iv_set
)
4180 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
4187 /* If key set use IV, otherwise copy */
4189 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
4191 memcpy(octx
->iv
, iv
, octx
->ivlen
);
4197 static int aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
4198 const unsigned char *in
, size_t len
)
4202 int written_len
= 0;
4203 size_t trailing_len
;
4204 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
4206 /* If IV or Key not set then return error */
4215 * Need to ensure we are only passing full blocks to low level OCB
4216 * routines. We do it here rather than in EVP_EncryptUpdate/
4217 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4218 * and those routines don't support that
4221 /* Are we dealing with AAD or normal data here? */
4223 buf
= octx
->aad_buf
;
4224 buf_len
= &(octx
->aad_buf_len
);
4226 buf
= octx
->data_buf
;
4227 buf_len
= &(octx
->data_buf_len
);
4229 if (is_partially_overlapping(out
+ *buf_len
, in
, len
)) {
4230 EVPerr(EVP_F_AES_OCB_CIPHER
, EVP_R_PARTIALLY_OVERLAPPING
);
4236 * If we've got a partially filled buffer from a previous call then
4237 * use that data first
4240 unsigned int remaining
;
4242 remaining
= AES_BLOCK_SIZE
- (*buf_len
);
4243 if (remaining
> len
) {
4244 memcpy(buf
+ (*buf_len
), in
, len
);
4248 memcpy(buf
+ (*buf_len
), in
, remaining
);
4251 * If we get here we've filled the buffer, so process it
4256 if (!CRYPTO_ocb128_aad(&octx
->ocb
, buf
, AES_BLOCK_SIZE
))
4258 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4259 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, buf
, out
,
4263 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, buf
, out
,
4267 written_len
= AES_BLOCK_SIZE
;
4270 out
+= AES_BLOCK_SIZE
;
4273 /* Do we have a partial block to handle at the end? */
4274 trailing_len
= len
% AES_BLOCK_SIZE
;
4277 * If we've got some full blocks to handle, then process these first
4279 if (len
!= trailing_len
) {
4281 if (!CRYPTO_ocb128_aad(&octx
->ocb
, in
, len
- trailing_len
))
4283 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4284 if (!CRYPTO_ocb128_encrypt
4285 (&octx
->ocb
, in
, out
, len
- trailing_len
))
4288 if (!CRYPTO_ocb128_decrypt
4289 (&octx
->ocb
, in
, out
, len
- trailing_len
))
4292 written_len
+= len
- trailing_len
;
4293 in
+= len
- trailing_len
;
4296 /* Handle any trailing partial block */
4297 if (trailing_len
> 0) {
4298 memcpy(buf
, in
, trailing_len
);
4299 *buf_len
= trailing_len
;
4305 * First of all empty the buffer of any partial block that we might
4306 * have been provided - both for data and AAD
4308 if (octx
->data_buf_len
> 0) {
4309 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4310 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, octx
->data_buf
, out
,
4311 octx
->data_buf_len
))
4314 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, octx
->data_buf
, out
,
4315 octx
->data_buf_len
))
4318 written_len
= octx
->data_buf_len
;
4319 octx
->data_buf_len
= 0;
4321 if (octx
->aad_buf_len
> 0) {
4322 if (!CRYPTO_ocb128_aad
4323 (&octx
->ocb
, octx
->aad_buf
, octx
->aad_buf_len
))
4325 octx
->aad_buf_len
= 0;
4327 /* If decrypting then verify */
4328 if (!EVP_CIPHER_CTX_encrypting(ctx
)) {
4329 if (octx
->taglen
< 0)
4331 if (CRYPTO_ocb128_finish(&octx
->ocb
,
4332 octx
->tag
, octx
->taglen
) != 0)
4337 /* If encrypting then just get the tag */
4338 if (CRYPTO_ocb128_tag(&octx
->ocb
, octx
->tag
, 16) != 1)
4340 /* Don't reuse the IV */
4346 static int aes_ocb_cleanup(EVP_CIPHER_CTX
*c
)
4348 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
4349 CRYPTO_ocb128_cleanup(&octx
->ocb
);
4353 BLOCK_CIPHER_custom(NID_aes
, 128, 16, 12, ocb
, OCB
,
4354 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4355 BLOCK_CIPHER_custom(NID_aes
, 192, 16, 12, ocb
, OCB
,
4356 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4357 BLOCK_CIPHER_custom(NID_aes
, 256, 16, 12, ocb
, OCB
,
4358 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4359 #endif /* OPENSSL_NO_OCB */
4362 #ifndef OPENSSL_NO_SIV
4364 typedef SIV128_CONTEXT EVP_AES_SIV_CTX
;
4366 #define aesni_siv_init_key aes_siv_init_key
4367 static int aes_siv_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
4368 const unsigned char *iv
, int enc
)
4370 const EVP_CIPHER
*ctr
;
4371 const EVP_CIPHER
*cbc
;
4372 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, ctx
);
4373 int klen
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
4380 cbc
= EVP_aes_128_cbc();
4381 ctr
= EVP_aes_128_ctr();
4384 cbc
= EVP_aes_192_cbc();
4385 ctr
= EVP_aes_192_ctr();
4388 cbc
= EVP_aes_256_cbc();
4389 ctr
= EVP_aes_256_ctr();
4395 /* klen is the length of the underlying cipher, not the input key,
4396 which should be twice as long */
4397 return CRYPTO_siv128_init(sctx
, key
, klen
, cbc
, ctr
);
4400 #define aesni_siv_cipher aes_siv_cipher
4401 static int aes_siv_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
4402 const unsigned char *in
, size_t len
)
4404 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, ctx
);
4406 /* EncryptFinal or DecryptFinal */
4408 return CRYPTO_siv128_finish(sctx
);
4410 /* Deal with associated data */
4412 return CRYPTO_siv128_aad(sctx
, in
, len
);
4414 if (EVP_CIPHER_CTX_encrypting(ctx
))
4415 return CRYPTO_siv128_encrypt(sctx
, in
, out
, len
);
4417 return CRYPTO_siv128_decrypt(sctx
, in
, out
, len
);
4420 #define aesni_siv_cleanup aes_siv_cleanup
4421 static int aes_siv_cleanup(EVP_CIPHER_CTX
*c
)
4423 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, c
);
4425 return CRYPTO_siv128_cleanup(sctx
);
4429 #define aesni_siv_ctrl aes_siv_ctrl
4430 static int aes_siv_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
4432 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, c
);
4433 SIV128_CONTEXT
*sctx_out
;
4437 return CRYPTO_siv128_cleanup(sctx
);
4439 case EVP_CTRL_SET_SPEED
:
4440 return CRYPTO_siv128_speed(sctx
, arg
);
4442 case EVP_CTRL_AEAD_SET_TAG
:
4443 if (!EVP_CIPHER_CTX_encrypting(c
))
4444 return CRYPTO_siv128_set_tag(sctx
, ptr
, arg
);
4447 case EVP_CTRL_AEAD_GET_TAG
:
4448 if (!EVP_CIPHER_CTX_encrypting(c
))
4450 return CRYPTO_siv128_get_tag(sctx
, ptr
, arg
);
4453 sctx_out
= EVP_C_DATA(SIV128_CONTEXT
, (EVP_CIPHER_CTX
*)ptr
);
4454 return CRYPTO_siv128_copy_ctx(sctx_out
, sctx
);
4462 #define SIV_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
4463 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
4464 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_COPY \
4465 | EVP_CIPH_CTRL_INIT)
4467 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 0, siv
, SIV
, SIV_FLAGS
)
4468 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 0, siv
, SIV
, SIV_FLAGS
)
4469 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 0, siv
, SIV
, SIV_FLAGS
)