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 "modes_lcl.h"
19 #include <openssl/rand.h>
20 #include <openssl/cmac.h>
39 } ks
; /* AES key schedule to use */
40 int key_set
; /* Set if key initialised */
41 int iv_set
; /* Set if an iv is set */
43 unsigned char *iv
; /* Temporary IV store */
44 int ivlen
; /* IV length */
46 int iv_gen
; /* It is OK to generate IVs */
47 int iv_gen_rand
; /* No IV was specified, so generate a rand IV */
48 int tls_aad_len
; /* TLS AAD length */
49 uint64_t tls_enc_records
; /* Number of TLS records encrypted */
57 } ks1
, ks2
; /* AES key schedules to use */
59 void (*stream
) (const unsigned char *in
,
60 unsigned char *out
, size_t length
,
61 const AES_KEY
*key1
, const AES_KEY
*key2
,
62 const unsigned char iv
[16]);
69 } ks
; /* AES key schedule to use */
70 int key_set
; /* Set if key initialised */
71 int iv_set
; /* Set if an iv is set */
72 int tag_set
; /* Set if tag is valid */
73 int len_set
; /* Set if message length set */
74 int L
, M
; /* L and M parameters from RFC3610 */
75 int tls_aad_len
; /* TLS AAD length */
80 #ifndef OPENSSL_NO_OCB
85 } ksenc
; /* AES key schedule to use for encryption */
89 } ksdec
; /* AES key schedule to use for decryption */
90 int key_set
; /* Set if key initialised */
91 int iv_set
; /* Set if an iv is set */
93 unsigned char *iv
; /* Temporary IV store */
94 unsigned char tag
[16];
95 unsigned char data_buf
[16]; /* Store partial data blocks */
96 unsigned char aad_buf
[16]; /* Store partial AAD blocks */
99 int ivlen
; /* IV length */
104 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
107 int vpaes_set_encrypt_key(const unsigned char *userKey
, int bits
,
109 int vpaes_set_decrypt_key(const unsigned char *userKey
, int bits
,
112 void vpaes_encrypt(const unsigned char *in
, unsigned char *out
,
114 void vpaes_decrypt(const unsigned char *in
, unsigned char *out
,
117 void vpaes_cbc_encrypt(const unsigned char *in
,
120 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
123 void bsaes_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
124 size_t length
, const AES_KEY
*key
,
125 unsigned char ivec
[16], int enc
);
126 void bsaes_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
127 size_t len
, const AES_KEY
*key
,
128 const unsigned char ivec
[16]);
129 void bsaes_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
130 size_t len
, const AES_KEY
*key1
,
131 const AES_KEY
*key2
, const unsigned char iv
[16]);
132 void bsaes_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
133 size_t len
, const AES_KEY
*key1
,
134 const AES_KEY
*key2
, const unsigned char iv
[16]);
137 void AES_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
138 size_t blocks
, const AES_KEY
*key
,
139 const unsigned char ivec
[AES_BLOCK_SIZE
]);
142 void AES_xts_encrypt(const unsigned char *inp
, unsigned char *out
, size_t len
,
143 const AES_KEY
*key1
, const AES_KEY
*key2
,
144 const unsigned char iv
[16]);
145 void AES_xts_decrypt(const unsigned char *inp
, unsigned char *out
, size_t len
,
146 const AES_KEY
*key1
, const AES_KEY
*key2
,
147 const unsigned char iv
[16]);
150 /* increment counter (64-bit int) by 1 */
151 static void ctr64_inc(unsigned char *counter
)
166 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
167 # include "ppc_arch.h"
169 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
171 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
172 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
173 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
174 # define HWAES_encrypt aes_p8_encrypt
175 # define HWAES_decrypt aes_p8_decrypt
176 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
177 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
178 # define HWAES_xts_encrypt aes_p8_xts_encrypt
179 # define HWAES_xts_decrypt aes_p8_xts_decrypt
182 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
183 ((defined(__i386) || defined(__i386__) || \
184 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
185 defined(__x86_64) || defined(__x86_64__) || \
186 defined(_M_AMD64) || defined(_M_X64) )
188 extern unsigned int OPENSSL_ia32cap_P
[];
191 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
194 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
199 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
201 int aesni_set_encrypt_key(const unsigned char *userKey
, int bits
,
203 int aesni_set_decrypt_key(const unsigned char *userKey
, int bits
,
206 void aesni_encrypt(const unsigned char *in
, unsigned char *out
,
208 void aesni_decrypt(const unsigned char *in
, unsigned char *out
,
211 void aesni_ecb_encrypt(const unsigned char *in
,
213 size_t length
, const AES_KEY
*key
, int enc
);
214 void aesni_cbc_encrypt(const unsigned char *in
,
217 const AES_KEY
*key
, unsigned char *ivec
, int enc
);
219 void aesni_ctr32_encrypt_blocks(const unsigned char *in
,
222 const void *key
, const unsigned char *ivec
);
224 void aesni_xts_encrypt(const unsigned char *in
,
227 const AES_KEY
*key1
, const AES_KEY
*key2
,
228 const unsigned char iv
[16]);
230 void aesni_xts_decrypt(const unsigned char *in
,
233 const AES_KEY
*key1
, const AES_KEY
*key2
,
234 const unsigned char iv
[16]);
236 void aesni_ccm64_encrypt_blocks(const unsigned char *in
,
240 const unsigned char ivec
[16],
241 unsigned char cmac
[16]);
243 void aesni_ccm64_decrypt_blocks(const unsigned char *in
,
247 const unsigned char ivec
[16],
248 unsigned char cmac
[16]);
250 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
251 size_t aesni_gcm_encrypt(const unsigned char *in
,
254 const void *key
, unsigned char ivec
[16], u64
*Xi
);
255 # define AES_gcm_encrypt aesni_gcm_encrypt
256 size_t aesni_gcm_decrypt(const unsigned char *in
,
259 const void *key
, unsigned char ivec
[16], u64
*Xi
);
260 # define AES_gcm_decrypt aesni_gcm_decrypt
261 void gcm_ghash_avx(u64 Xi
[2], const u128 Htable
[16], const u8
*in
,
263 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
264 gctx->gcm.ghash==gcm_ghash_avx)
265 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
266 gctx->gcm.ghash==gcm_ghash_avx)
267 # undef AES_GCM_ASM2 /* minor size optimization */
270 static int aesni_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
271 const unsigned char *iv
, int enc
)
274 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
276 mode
= EVP_CIPHER_CTX_mode(ctx
);
277 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
279 ret
= aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
281 dat
->block
= (block128_f
) aesni_decrypt
;
282 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
283 (cbc128_f
) aesni_cbc_encrypt
: NULL
;
285 ret
= aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
287 dat
->block
= (block128_f
) aesni_encrypt
;
288 if (mode
== EVP_CIPH_CBC_MODE
)
289 dat
->stream
.cbc
= (cbc128_f
) aesni_cbc_encrypt
;
290 else if (mode
== EVP_CIPH_CTR_MODE
)
291 dat
->stream
.ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
293 dat
->stream
.cbc
= NULL
;
297 EVPerr(EVP_F_AESNI_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
304 static int aesni_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
305 const unsigned char *in
, size_t len
)
307 aesni_cbc_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
308 EVP_CIPHER_CTX_iv_noconst(ctx
),
309 EVP_CIPHER_CTX_encrypting(ctx
));
314 static int aesni_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
315 const unsigned char *in
, size_t len
)
317 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
322 aesni_ecb_encrypt(in
, out
, len
, &EVP_C_DATA(EVP_AES_KEY
,ctx
)->ks
.ks
,
323 EVP_CIPHER_CTX_encrypting(ctx
));
328 # define aesni_ofb_cipher aes_ofb_cipher
329 static int aesni_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
330 const unsigned char *in
, size_t len
);
332 # define aesni_cfb_cipher aes_cfb_cipher
333 static int aesni_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
334 const unsigned char *in
, size_t len
);
336 # define aesni_cfb8_cipher aes_cfb8_cipher
337 static int aesni_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
338 const unsigned char *in
, size_t len
);
340 # define aesni_cfb1_cipher aes_cfb1_cipher
341 static int aesni_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
342 const unsigned char *in
, size_t len
);
344 # define aesni_ctr_cipher aes_ctr_cipher
345 static int aesni_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
346 const unsigned char *in
, size_t len
);
348 static int aesni_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
349 const unsigned char *iv
, int enc
)
351 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
355 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
357 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
, (block128_f
) aesni_encrypt
);
358 gctx
->ctr
= (ctr128_f
) aesni_ctr32_encrypt_blocks
;
360 * If we have an iv can set it directly, otherwise use saved IV.
362 if (iv
== NULL
&& gctx
->iv_set
)
365 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
370 /* If key set use IV, otherwise copy */
372 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
374 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
381 # define aesni_gcm_cipher aes_gcm_cipher
382 static int aesni_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
383 const unsigned char *in
, size_t len
);
385 static int aesni_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
386 const unsigned char *iv
, int enc
)
388 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
393 /* The key is two half length keys in reality */
394 const int bytes
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
395 const int bits
= bytes
* 8;
398 * Verify that the two keys are different.
400 * This addresses Rogaway's vulnerability.
401 * See comment in aes_xts_init_key() below.
403 if (memcmp(key
, key
+ bytes
, bytes
) == 0) {
404 EVPerr(EVP_F_AESNI_XTS_INIT_KEY
, EVP_R_XTS_DUPLICATED_KEYS
);
408 /* key_len is two AES keys */
410 aesni_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
411 xctx
->xts
.block1
= (block128_f
) aesni_encrypt
;
412 xctx
->stream
= aesni_xts_encrypt
;
414 aesni_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
415 xctx
->xts
.block1
= (block128_f
) aesni_decrypt
;
416 xctx
->stream
= aesni_xts_decrypt
;
419 aesni_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
420 xctx
->xts
.block2
= (block128_f
) aesni_encrypt
;
422 xctx
->xts
.key1
= &xctx
->ks1
;
426 xctx
->xts
.key2
= &xctx
->ks2
;
427 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
433 # define aesni_xts_cipher aes_xts_cipher
434 static int aesni_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
435 const unsigned char *in
, size_t len
);
437 static int aesni_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
438 const unsigned char *iv
, int enc
)
440 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
444 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
446 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
447 &cctx
->ks
, (block128_f
) aesni_encrypt
);
448 cctx
->str
= enc
? (ccm128_f
) aesni_ccm64_encrypt_blocks
:
449 (ccm128_f
) aesni_ccm64_decrypt_blocks
;
453 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
459 # define aesni_ccm_cipher aes_ccm_cipher
460 static int aesni_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
461 const unsigned char *in
, size_t len
);
463 # ifndef OPENSSL_NO_OCB
464 void aesni_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
465 size_t blocks
, const void *key
,
466 size_t start_block_num
,
467 unsigned char offset_i
[16],
468 const unsigned char L_
[][16],
469 unsigned char checksum
[16]);
470 void aesni_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
471 size_t blocks
, const void *key
,
472 size_t start_block_num
,
473 unsigned char offset_i
[16],
474 const unsigned char L_
[][16],
475 unsigned char checksum
[16]);
477 static int aesni_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
478 const unsigned char *iv
, int enc
)
480 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
486 * We set both the encrypt and decrypt key here because decrypt
487 * needs both. We could possibly optimise to remove setting the
488 * decrypt for an encryption operation.
490 aesni_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
492 aesni_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
494 if (!CRYPTO_ocb128_init(&octx
->ocb
,
495 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
496 (block128_f
) aesni_encrypt
,
497 (block128_f
) aesni_decrypt
,
498 enc
? aesni_ocb_encrypt
499 : aesni_ocb_decrypt
))
505 * If we have an iv we can set it directly, otherwise use saved IV.
507 if (iv
== NULL
&& octx
->iv_set
)
510 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
517 /* If key set use IV, otherwise copy */
519 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
521 memcpy(octx
->iv
, iv
, octx
->ivlen
);
527 # define aesni_ocb_cipher aes_ocb_cipher
528 static int aesni_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
529 const unsigned char *in
, size_t len
);
530 # endif /* OPENSSL_NO_OCB */
532 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
533 static const EVP_CIPHER aesni_##keylen##_##mode = { \
534 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
535 flags|EVP_CIPH_##MODE##_MODE, \
537 aesni_##mode##_cipher, \
539 sizeof(EVP_AES_KEY), \
540 NULL,NULL,NULL,NULL }; \
541 static const EVP_CIPHER aes_##keylen##_##mode = { \
542 nid##_##keylen##_##nmode,blocksize, \
544 flags|EVP_CIPH_##MODE##_MODE, \
546 aes_##mode##_cipher, \
548 sizeof(EVP_AES_KEY), \
549 NULL,NULL,NULL,NULL }; \
550 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
551 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
553 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
554 static const EVP_CIPHER aesni_##keylen##_##mode = { \
555 nid##_##keylen##_##mode,blocksize, \
556 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
558 flags|EVP_CIPH_##MODE##_MODE, \
559 aesni_##mode##_init_key, \
560 aesni_##mode##_cipher, \
561 aes_##mode##_cleanup, \
562 sizeof(EVP_AES_##MODE##_CTX), \
563 NULL,NULL,aes_##mode##_ctrl,NULL }; \
564 static const EVP_CIPHER aes_##keylen##_##mode = { \
565 nid##_##keylen##_##mode,blocksize, \
566 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
568 flags|EVP_CIPH_##MODE##_MODE, \
569 aes_##mode##_init_key, \
570 aes_##mode##_cipher, \
571 aes_##mode##_cleanup, \
572 sizeof(EVP_AES_##MODE##_CTX), \
573 NULL,NULL,aes_##mode##_ctrl,NULL }; \
574 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
575 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
577 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
579 # include "sparc_arch.h"
581 extern unsigned int OPENSSL_sparcv9cap_P
[];
584 * Initial Fujitsu SPARC64 X support
586 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
587 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
588 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
589 # define HWAES_encrypt aes_fx_encrypt
590 # define HWAES_decrypt aes_fx_decrypt
591 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
592 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
594 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
596 void aes_t4_set_encrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
597 void aes_t4_set_decrypt_key(const unsigned char *key
, int bits
, AES_KEY
*ks
);
598 void aes_t4_encrypt(const unsigned char *in
, unsigned char *out
,
600 void aes_t4_decrypt(const unsigned char *in
, unsigned char *out
,
603 * Key-length specific subroutines were chosen for following reason.
604 * Each SPARC T4 core can execute up to 8 threads which share core's
605 * resources. Loading as much key material to registers allows to
606 * minimize references to shared memory interface, as well as amount
607 * of instructions in inner loops [much needed on T4]. But then having
608 * non-key-length specific routines would require conditional branches
609 * either in inner loops or on subroutines' entries. Former is hardly
610 * acceptable, while latter means code size increase to size occupied
611 * by multiple key-length specific subroutines, so why fight?
613 void aes128_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
614 size_t len
, const AES_KEY
*key
,
615 unsigned char *ivec
);
616 void aes128_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
617 size_t len
, const AES_KEY
*key
,
618 unsigned char *ivec
);
619 void aes192_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
620 size_t len
, const AES_KEY
*key
,
621 unsigned char *ivec
);
622 void aes192_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
623 size_t len
, const AES_KEY
*key
,
624 unsigned char *ivec
);
625 void aes256_t4_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
626 size_t len
, const AES_KEY
*key
,
627 unsigned char *ivec
);
628 void aes256_t4_cbc_decrypt(const unsigned char *in
, unsigned char *out
,
629 size_t len
, const AES_KEY
*key
,
630 unsigned char *ivec
);
631 void aes128_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
632 size_t blocks
, const AES_KEY
*key
,
633 unsigned char *ivec
);
634 void aes192_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
635 size_t blocks
, const AES_KEY
*key
,
636 unsigned char *ivec
);
637 void aes256_t4_ctr32_encrypt(const unsigned char *in
, unsigned char *out
,
638 size_t blocks
, const AES_KEY
*key
,
639 unsigned char *ivec
);
640 void aes128_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
641 size_t blocks
, const AES_KEY
*key1
,
642 const AES_KEY
*key2
, const unsigned char *ivec
);
643 void aes128_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
644 size_t blocks
, const AES_KEY
*key1
,
645 const AES_KEY
*key2
, const unsigned char *ivec
);
646 void aes256_t4_xts_encrypt(const unsigned char *in
, unsigned char *out
,
647 size_t blocks
, const AES_KEY
*key1
,
648 const AES_KEY
*key2
, const unsigned char *ivec
);
649 void aes256_t4_xts_decrypt(const unsigned char *in
, unsigned char *out
,
650 size_t blocks
, const AES_KEY
*key1
,
651 const AES_KEY
*key2
, const unsigned char *ivec
);
653 static int aes_t4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
654 const unsigned char *iv
, int enc
)
657 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
659 mode
= EVP_CIPHER_CTX_mode(ctx
);
660 bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
661 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
664 aes_t4_set_decrypt_key(key
, bits
, &dat
->ks
.ks
);
665 dat
->block
= (block128_f
) aes_t4_decrypt
;
668 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
669 (cbc128_f
) aes128_t4_cbc_decrypt
: NULL
;
672 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
673 (cbc128_f
) aes192_t4_cbc_decrypt
: NULL
;
676 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
677 (cbc128_f
) aes256_t4_cbc_decrypt
: NULL
;
684 aes_t4_set_encrypt_key(key
, bits
, &dat
->ks
.ks
);
685 dat
->block
= (block128_f
) aes_t4_encrypt
;
688 if (mode
== EVP_CIPH_CBC_MODE
)
689 dat
->stream
.cbc
= (cbc128_f
) aes128_t4_cbc_encrypt
;
690 else if (mode
== EVP_CIPH_CTR_MODE
)
691 dat
->stream
.ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
693 dat
->stream
.cbc
= NULL
;
696 if (mode
== EVP_CIPH_CBC_MODE
)
697 dat
->stream
.cbc
= (cbc128_f
) aes192_t4_cbc_encrypt
;
698 else if (mode
== EVP_CIPH_CTR_MODE
)
699 dat
->stream
.ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
701 dat
->stream
.cbc
= NULL
;
704 if (mode
== EVP_CIPH_CBC_MODE
)
705 dat
->stream
.cbc
= (cbc128_f
) aes256_t4_cbc_encrypt
;
706 else if (mode
== EVP_CIPH_CTR_MODE
)
707 dat
->stream
.ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
709 dat
->stream
.cbc
= NULL
;
717 EVPerr(EVP_F_AES_T4_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
724 # define aes_t4_cbc_cipher aes_cbc_cipher
725 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
726 const unsigned char *in
, size_t len
);
728 # define aes_t4_ecb_cipher aes_ecb_cipher
729 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
730 const unsigned char *in
, size_t len
);
732 # define aes_t4_ofb_cipher aes_ofb_cipher
733 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
734 const unsigned char *in
, size_t len
);
736 # define aes_t4_cfb_cipher aes_cfb_cipher
737 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
738 const unsigned char *in
, size_t len
);
740 # define aes_t4_cfb8_cipher aes_cfb8_cipher
741 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
742 const unsigned char *in
, size_t len
);
744 # define aes_t4_cfb1_cipher aes_cfb1_cipher
745 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
746 const unsigned char *in
, size_t len
);
748 # define aes_t4_ctr_cipher aes_ctr_cipher
749 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
750 const unsigned char *in
, size_t len
);
752 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
753 const unsigned char *iv
, int enc
)
755 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
759 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
760 aes_t4_set_encrypt_key(key
, bits
, &gctx
->ks
.ks
);
761 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
762 (block128_f
) aes_t4_encrypt
);
765 gctx
->ctr
= (ctr128_f
) aes128_t4_ctr32_encrypt
;
768 gctx
->ctr
= (ctr128_f
) aes192_t4_ctr32_encrypt
;
771 gctx
->ctr
= (ctr128_f
) aes256_t4_ctr32_encrypt
;
777 * If we have an iv can set it directly, otherwise use saved IV.
779 if (iv
== NULL
&& gctx
->iv_set
)
782 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
787 /* If key set use IV, otherwise copy */
789 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
791 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
798 # define aes_t4_gcm_cipher aes_gcm_cipher
799 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
800 const unsigned char *in
, size_t len
);
802 static int aes_t4_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
803 const unsigned char *iv
, int enc
)
805 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
810 /* The key is two half length keys in reality */
811 const int bytes
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
812 const int bits
= bytes
* 8;
815 * Verify that the two keys are different.
817 * This addresses Rogaway's vulnerability.
818 * See comment in aes_xts_init_key() below.
820 if (memcmp(key
, key
+ bytes
, bytes
) == 0) {
821 EVPerr(EVP_F_AES_T4_XTS_INIT_KEY
, EVP_R_XTS_DUPLICATED_KEYS
);
826 /* key_len is two AES keys */
828 aes_t4_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
829 xctx
->xts
.block1
= (block128_f
) aes_t4_encrypt
;
832 xctx
->stream
= aes128_t4_xts_encrypt
;
835 xctx
->stream
= aes256_t4_xts_encrypt
;
841 aes_t4_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
842 xctx
->xts
.block1
= (block128_f
) aes_t4_decrypt
;
845 xctx
->stream
= aes128_t4_xts_decrypt
;
848 xctx
->stream
= aes256_t4_xts_decrypt
;
855 aes_t4_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
856 xctx
->xts
.block2
= (block128_f
) aes_t4_encrypt
;
858 xctx
->xts
.key1
= &xctx
->ks1
;
862 xctx
->xts
.key2
= &xctx
->ks2
;
863 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
869 # define aes_t4_xts_cipher aes_xts_cipher
870 static int aes_t4_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
871 const unsigned char *in
, size_t len
);
873 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
874 const unsigned char *iv
, int enc
)
876 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
880 int bits
= EVP_CIPHER_CTX_key_length(ctx
) * 8;
881 aes_t4_set_encrypt_key(key
, bits
, &cctx
->ks
.ks
);
882 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
883 &cctx
->ks
, (block128_f
) aes_t4_encrypt
);
888 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
894 # define aes_t4_ccm_cipher aes_ccm_cipher
895 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
896 const unsigned char *in
, size_t len
);
898 # ifndef OPENSSL_NO_OCB
899 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
900 const unsigned char *iv
, int enc
)
902 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
908 * We set both the encrypt and decrypt key here because decrypt
909 * needs both. We could possibly optimise to remove setting the
910 * decrypt for an encryption operation.
912 aes_t4_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
914 aes_t4_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
916 if (!CRYPTO_ocb128_init(&octx
->ocb
,
917 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
918 (block128_f
) aes_t4_encrypt
,
919 (block128_f
) aes_t4_decrypt
,
926 * If we have an iv we can set it directly, otherwise use saved IV.
928 if (iv
== NULL
&& octx
->iv_set
)
931 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
938 /* If key set use IV, otherwise copy */
940 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
942 memcpy(octx
->iv
, iv
, octx
->ivlen
);
948 # define aes_t4_ocb_cipher aes_ocb_cipher
949 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
950 const unsigned char *in
, size_t len
);
951 # endif /* OPENSSL_NO_OCB */
953 # ifndef OPENSSL_NO_SIV
954 # define aes_t4_siv_init_key aes_siv_init_key
955 # define aes_t4_siv_cipher aes_siv_cipher
956 # endif /* OPENSSL_NO_SIV */
958 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
959 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
960 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
961 flags|EVP_CIPH_##MODE##_MODE, \
963 aes_t4_##mode##_cipher, \
965 sizeof(EVP_AES_KEY), \
966 NULL,NULL,NULL,NULL }; \
967 static const EVP_CIPHER aes_##keylen##_##mode = { \
968 nid##_##keylen##_##nmode,blocksize, \
970 flags|EVP_CIPH_##MODE##_MODE, \
972 aes_##mode##_cipher, \
974 sizeof(EVP_AES_KEY), \
975 NULL,NULL,NULL,NULL }; \
976 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
977 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
979 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
980 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
981 nid##_##keylen##_##mode,blocksize, \
982 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
984 flags|EVP_CIPH_##MODE##_MODE, \
985 aes_t4_##mode##_init_key, \
986 aes_t4_##mode##_cipher, \
987 aes_##mode##_cleanup, \
988 sizeof(EVP_AES_##MODE##_CTX), \
989 NULL,NULL,aes_##mode##_ctrl,NULL }; \
990 static const EVP_CIPHER aes_##keylen##_##mode = { \
991 nid##_##keylen##_##mode,blocksize, \
992 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
994 flags|EVP_CIPH_##MODE##_MODE, \
995 aes_##mode##_init_key, \
996 aes_##mode##_cipher, \
997 aes_##mode##_cleanup, \
998 sizeof(EVP_AES_##MODE##_CTX), \
999 NULL,NULL,aes_##mode##_ctrl,NULL }; \
1000 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
1001 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
1003 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
1007 # include "s390x_arch.h"
1013 * KM-AES parameter block - begin
1014 * (see z/Architecture Principles of Operation >= SA22-7832-06)
1017 unsigned char k
[32];
1019 /* KM-AES parameter block - end */
1022 } S390X_AES_ECB_CTX
;
1028 * KMO-AES parameter block - begin
1029 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1032 unsigned char cv
[16];
1033 unsigned char k
[32];
1035 /* KMO-AES parameter block - end */
1040 } S390X_AES_OFB_CTX
;
1046 * KMF-AES parameter block - begin
1047 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1050 unsigned char cv
[16];
1051 unsigned char k
[32];
1053 /* KMF-AES parameter block - end */
1058 } S390X_AES_CFB_CTX
;
1064 * KMA-GCM-AES parameter block - begin
1065 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1068 unsigned char reserved
[12];
1074 unsigned long long g
[2];
1075 unsigned char b
[16];
1077 unsigned char h
[16];
1078 unsigned long long taadl
;
1079 unsigned long long tpcl
;
1081 unsigned long long g
[2];
1084 unsigned char k
[32];
1086 /* KMA-GCM-AES parameter block - end */
1098 unsigned char ares
[16];
1099 unsigned char mres
[16];
1100 unsigned char kres
[16];
1106 uint64_t tls_enc_records
; /* Number of TLS records encrypted */
1107 } S390X_AES_GCM_CTX
;
1113 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1114 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1115 * rounds field is used to store the function code and that the key
1116 * schedule is not stored (if aes hardware support is detected).
1119 unsigned char pad
[16];
1125 * KMAC-AES parameter block - begin
1126 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1130 unsigned long long g
[2];
1131 unsigned char b
[16];
1133 unsigned char k
[32];
1135 /* KMAC-AES paramater block - end */
1138 unsigned long long g
[2];
1139 unsigned char b
[16];
1142 unsigned long long g
[2];
1143 unsigned char b
[16];
1146 unsigned long long blocks
;
1155 unsigned char pad
[140];
1159 } S390X_AES_CCM_CTX
;
1161 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1162 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1164 /* Most modes of operation need km for partial block processing. */
1165 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1166 S390X_CAPBIT(S390X_AES_128))
1167 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1168 S390X_CAPBIT(S390X_AES_192))
1169 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1170 S390X_CAPBIT(S390X_AES_256))
1172 # define s390x_aes_init_key aes_init_key
1173 static int s390x_aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
1174 const unsigned char *iv
, int enc
);
1176 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1177 # define S390X_aes_192_cbc_CAPABLE 1
1178 # define S390X_aes_256_cbc_CAPABLE 1
1179 # define S390X_AES_CBC_CTX EVP_AES_KEY
1181 # define s390x_aes_cbc_init_key aes_init_key
1183 # define s390x_aes_cbc_cipher aes_cbc_cipher
1184 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1185 const unsigned char *in
, size_t len
);
1187 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1188 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1189 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1191 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX
*ctx
,
1192 const unsigned char *key
,
1193 const unsigned char *iv
, int enc
)
1195 S390X_AES_ECB_CTX
*cctx
= EVP_C_DATA(S390X_AES_ECB_CTX
, ctx
);
1196 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1198 cctx
->fc
= S390X_AES_FC(keylen
);
1200 cctx
->fc
|= S390X_DECRYPT
;
1202 memcpy(cctx
->km
.param
.k
, key
, keylen
);
1206 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1207 const unsigned char *in
, size_t len
)
1209 S390X_AES_ECB_CTX
*cctx
= EVP_C_DATA(S390X_AES_ECB_CTX
, ctx
);
1211 s390x_km(in
, len
, out
, cctx
->fc
, &cctx
->km
.param
);
1215 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1216 (OPENSSL_s390xcap_P.kmo[0] & \
1217 S390X_CAPBIT(S390X_AES_128)))
1218 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1219 (OPENSSL_s390xcap_P.kmo[0] & \
1220 S390X_CAPBIT(S390X_AES_192)))
1221 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1222 (OPENSSL_s390xcap_P.kmo[0] & \
1223 S390X_CAPBIT(S390X_AES_256)))
1225 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX
*ctx
,
1226 const unsigned char *key
,
1227 const unsigned char *ivec
, int enc
)
1229 S390X_AES_OFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_OFB_CTX
, ctx
);
1230 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1231 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1232 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1234 memcpy(cctx
->kmo
.param
.cv
, iv
, ivlen
);
1235 memcpy(cctx
->kmo
.param
.k
, key
, keylen
);
1236 cctx
->fc
= S390X_AES_FC(keylen
);
1241 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1242 const unsigned char *in
, size_t len
)
1244 S390X_AES_OFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_OFB_CTX
, ctx
);
1249 *out
= *in
^ cctx
->kmo
.param
.cv
[n
];
1258 len
&= ~(size_t)0xf;
1260 s390x_kmo(in
, len
, out
, cctx
->fc
, &cctx
->kmo
.param
);
1267 s390x_km(cctx
->kmo
.param
.cv
, 16, cctx
->kmo
.param
.cv
, cctx
->fc
,
1271 out
[n
] = in
[n
] ^ cctx
->kmo
.param
.cv
[n
];
1280 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1281 (OPENSSL_s390xcap_P.kmf[0] & \
1282 S390X_CAPBIT(S390X_AES_128)))
1283 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1284 (OPENSSL_s390xcap_P.kmf[0] & \
1285 S390X_CAPBIT(S390X_AES_192)))
1286 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1287 (OPENSSL_s390xcap_P.kmf[0] & \
1288 S390X_CAPBIT(S390X_AES_256)))
1290 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX
*ctx
,
1291 const unsigned char *key
,
1292 const unsigned char *ivec
, int enc
)
1294 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1295 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1296 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1297 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1299 cctx
->fc
= S390X_AES_FC(keylen
);
1300 cctx
->fc
|= 16 << 24; /* 16 bytes cipher feedback */
1302 cctx
->fc
|= S390X_DECRYPT
;
1305 memcpy(cctx
->kmf
.param
.cv
, iv
, ivlen
);
1306 memcpy(cctx
->kmf
.param
.k
, key
, keylen
);
1310 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1311 const unsigned char *in
, size_t len
)
1313 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1314 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1315 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1322 *out
= cctx
->kmf
.param
.cv
[n
] ^ tmp
;
1323 cctx
->kmf
.param
.cv
[n
] = enc
? *out
: tmp
;
1332 len
&= ~(size_t)0xf;
1334 s390x_kmf(in
, len
, out
, cctx
->fc
, &cctx
->kmf
.param
);
1341 s390x_km(cctx
->kmf
.param
.cv
, 16, cctx
->kmf
.param
.cv
,
1342 S390X_AES_FC(keylen
), cctx
->kmf
.param
.k
);
1346 out
[n
] = cctx
->kmf
.param
.cv
[n
] ^ tmp
;
1347 cctx
->kmf
.param
.cv
[n
] = enc
? out
[n
] : tmp
;
1356 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1357 S390X_CAPBIT(S390X_AES_128))
1358 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1359 S390X_CAPBIT(S390X_AES_192))
1360 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1361 S390X_CAPBIT(S390X_AES_256))
1363 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX
*ctx
,
1364 const unsigned char *key
,
1365 const unsigned char *ivec
, int enc
)
1367 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1368 const unsigned char *iv
= EVP_CIPHER_CTX_original_iv(ctx
);
1369 const int keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1370 const int ivlen
= EVP_CIPHER_CTX_iv_length(ctx
);
1372 cctx
->fc
= S390X_AES_FC(keylen
);
1373 cctx
->fc
|= 1 << 24; /* 1 byte cipher feedback */
1375 cctx
->fc
|= S390X_DECRYPT
;
1377 memcpy(cctx
->kmf
.param
.cv
, iv
, ivlen
);
1378 memcpy(cctx
->kmf
.param
.k
, key
, keylen
);
1382 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1383 const unsigned char *in
, size_t len
)
1385 S390X_AES_CFB_CTX
*cctx
= EVP_C_DATA(S390X_AES_CFB_CTX
, ctx
);
1387 s390x_kmf(in
, len
, out
, cctx
->fc
, &cctx
->kmf
.param
);
1391 # define S390X_aes_128_cfb1_CAPABLE 0
1392 # define S390X_aes_192_cfb1_CAPABLE 0
1393 # define S390X_aes_256_cfb1_CAPABLE 0
1395 # define s390x_aes_cfb1_init_key aes_init_key
1397 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1398 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1399 const unsigned char *in
, size_t len
);
1401 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1402 # define S390X_aes_192_ctr_CAPABLE 1
1403 # define S390X_aes_256_ctr_CAPABLE 1
1404 # define S390X_AES_CTR_CTX EVP_AES_KEY
1406 # define s390x_aes_ctr_init_key aes_init_key
1408 # define s390x_aes_ctr_cipher aes_ctr_cipher
1409 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1410 const unsigned char *in
, size_t len
);
1412 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1413 (OPENSSL_s390xcap_P.kma[0] & \
1414 S390X_CAPBIT(S390X_AES_128)))
1415 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1416 (OPENSSL_s390xcap_P.kma[0] & \
1417 S390X_CAPBIT(S390X_AES_192)))
1418 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1419 (OPENSSL_s390xcap_P.kma[0] & \
1420 S390X_CAPBIT(S390X_AES_256)))
1422 /* iv + padding length for iv lengths != 12 */
1423 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1426 * Process additional authenticated data. Returns 0 on success. Code is
1429 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX
*ctx
, const unsigned char *aad
,
1432 unsigned long long alen
;
1435 if (ctx
->kma
.param
.tpcl
)
1438 alen
= ctx
->kma
.param
.taadl
+ len
;
1439 if (alen
> (U64(1) << 61) || (sizeof(len
) == 8 && alen
< len
))
1441 ctx
->kma
.param
.taadl
= alen
;
1446 ctx
->ares
[n
] = *aad
;
1451 /* ctx->ares contains a complete block if offset has wrapped around */
1453 s390x_kma(ctx
->ares
, 16, NULL
, 0, NULL
, ctx
->fc
, &ctx
->kma
.param
);
1454 ctx
->fc
|= S390X_KMA_HS
;
1461 len
&= ~(size_t)0xf;
1463 s390x_kma(aad
, len
, NULL
, 0, NULL
, ctx
->fc
, &ctx
->kma
.param
);
1465 ctx
->fc
|= S390X_KMA_HS
;
1473 ctx
->ares
[rem
] = aad
[rem
];
1480 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1481 * success. Code is big-endian.
1483 static int s390x_aes_gcm(S390X_AES_GCM_CTX
*ctx
, const unsigned char *in
,
1484 unsigned char *out
, size_t len
)
1486 const unsigned char *inptr
;
1487 unsigned long long mlen
;
1490 unsigned char b
[16];
1495 mlen
= ctx
->kma
.param
.tpcl
+ len
;
1496 if (mlen
> ((U64(1) << 36) - 32) || (sizeof(len
) == 8 && mlen
< len
))
1498 ctx
->kma
.param
.tpcl
= mlen
;
1504 while (n
&& inlen
) {
1505 ctx
->mres
[n
] = *inptr
;
1510 /* ctx->mres contains a complete block if offset has wrapped around */
1512 s390x_kma(ctx
->ares
, ctx
->areslen
, ctx
->mres
, 16, buf
.b
,
1513 ctx
->fc
| S390X_KMA_LAAD
, &ctx
->kma
.param
);
1514 ctx
->fc
|= S390X_KMA_HS
;
1517 /* previous call already encrypted/decrypted its remainder,
1518 * see comment below */
1533 len
&= ~(size_t)0xf;
1535 s390x_kma(ctx
->ares
, ctx
->areslen
, in
, len
, out
,
1536 ctx
->fc
| S390X_KMA_LAAD
, &ctx
->kma
.param
);
1539 ctx
->fc
|= S390X_KMA_HS
;
1544 * If there is a remainder, it has to be saved such that it can be
1545 * processed by kma later. However, we also have to do the for-now
1546 * unauthenticated encryption/decryption part here and now...
1549 if (!ctx
->mreslen
) {
1550 buf
.w
[0] = ctx
->kma
.param
.j0
.w
[0];
1551 buf
.w
[1] = ctx
->kma
.param
.j0
.w
[1];
1552 buf
.w
[2] = ctx
->kma
.param
.j0
.w
[2];
1553 buf
.w
[3] = ctx
->kma
.param
.cv
.w
+ 1;
1554 s390x_km(buf
.b
, 16, ctx
->kres
, ctx
->fc
& 0x1f, &ctx
->kma
.param
.k
);
1558 for (i
= 0; i
< rem
; i
++) {
1559 ctx
->mres
[n
+ i
] = in
[i
];
1560 out
[i
] = in
[i
] ^ ctx
->kres
[n
+ i
];
1563 ctx
->mreslen
+= rem
;
1569 * Initialize context structure. Code is big-endian.
1571 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX
*ctx
,
1572 const unsigned char *iv
)
1574 ctx
->kma
.param
.t
.g
[0] = 0;
1575 ctx
->kma
.param
.t
.g
[1] = 0;
1576 ctx
->kma
.param
.tpcl
= 0;
1577 ctx
->kma
.param
.taadl
= 0;
1582 if (ctx
->ivlen
== 12) {
1583 memcpy(&ctx
->kma
.param
.j0
, iv
, ctx
->ivlen
);
1584 ctx
->kma
.param
.j0
.w
[3] = 1;
1585 ctx
->kma
.param
.cv
.w
= 1;
1587 /* ctx->iv has the right size and is already padded. */
1588 memcpy(ctx
->iv
, iv
, ctx
->ivlen
);
1589 s390x_kma(ctx
->iv
, S390X_gcm_ivpadlen(ctx
->ivlen
), NULL
, 0, NULL
,
1590 ctx
->fc
, &ctx
->kma
.param
);
1591 ctx
->fc
|= S390X_KMA_HS
;
1593 ctx
->kma
.param
.j0
.g
[0] = ctx
->kma
.param
.t
.g
[0];
1594 ctx
->kma
.param
.j0
.g
[1] = ctx
->kma
.param
.t
.g
[1];
1595 ctx
->kma
.param
.cv
.w
= ctx
->kma
.param
.j0
.w
[3];
1596 ctx
->kma
.param
.t
.g
[0] = 0;
1597 ctx
->kma
.param
.t
.g
[1] = 0;
1602 * Performs various operations on the context structure depending on control
1603 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1604 * Code is big-endian.
1606 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
1608 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, c
);
1609 S390X_AES_GCM_CTX
*gctx_out
;
1610 EVP_CIPHER_CTX
*out
;
1611 unsigned char *buf
, *iv
;
1612 int ivlen
, enc
, len
;
1616 ivlen
= EVP_CIPHER_CTX_iv_length(c
);
1617 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1620 gctx
->ivlen
= ivlen
;
1624 gctx
->tls_aad_len
= -1;
1627 case EVP_CTRL_AEAD_SET_IVLEN
:
1632 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1633 len
= S390X_gcm_ivpadlen(arg
);
1635 /* Allocate memory for iv if needed. */
1636 if (gctx
->ivlen
== 12 || len
> S390X_gcm_ivpadlen(gctx
->ivlen
)) {
1638 OPENSSL_free(gctx
->iv
);
1640 if ((gctx
->iv
= OPENSSL_malloc(len
)) == NULL
) {
1641 EVPerr(EVP_F_S390X_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
1646 memset(gctx
->iv
+ arg
, 0, len
- arg
- 8);
1647 *((unsigned long long *)(gctx
->iv
+ len
- 8)) = arg
<< 3;
1652 case EVP_CTRL_AEAD_SET_TAG
:
1653 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
1654 enc
= EVP_CIPHER_CTX_encrypting(c
);
1655 if (arg
<= 0 || arg
> 16 || enc
)
1658 memcpy(buf
, ptr
, arg
);
1662 case EVP_CTRL_AEAD_GET_TAG
:
1663 enc
= EVP_CIPHER_CTX_encrypting(c
);
1664 if (arg
<= 0 || arg
> 16 || !enc
|| gctx
->taglen
< 0)
1667 memcpy(ptr
, gctx
->kma
.param
.t
.b
, arg
);
1670 case EVP_CTRL_GCM_SET_IV_FIXED
:
1671 /* Special case: -1 length restores whole iv */
1673 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
1678 * Fixed field must be at least 4 bytes and invocation field at least
1681 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
1685 memcpy(gctx
->iv
, ptr
, arg
);
1687 enc
= EVP_CIPHER_CTX_encrypting(c
);
1688 if (enc
&& RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
1694 case EVP_CTRL_GCM_IV_GEN
:
1695 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
1698 s390x_aes_gcm_setiv(gctx
, gctx
->iv
);
1700 if (arg
<= 0 || arg
> gctx
->ivlen
)
1703 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
1705 * Invocation field will be at least 8 bytes in size and so no need
1706 * to check wrap around or increment more than last 8 bytes.
1708 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
1712 case EVP_CTRL_GCM_SET_IV_INV
:
1713 enc
= EVP_CIPHER_CTX_encrypting(c
);
1714 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0 || enc
)
1717 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
1718 s390x_aes_gcm_setiv(gctx
, gctx
->iv
);
1722 case EVP_CTRL_AEAD_TLS1_AAD
:
1723 /* Save the aad for later use. */
1724 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
1727 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
1728 memcpy(buf
, ptr
, arg
);
1729 gctx
->tls_aad_len
= arg
;
1730 gctx
->tls_enc_records
= 0;
1732 len
= buf
[arg
- 2] << 8 | buf
[arg
- 1];
1733 /* Correct length for explicit iv. */
1734 if (len
< EVP_GCM_TLS_EXPLICIT_IV_LEN
)
1736 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1738 /* If decrypting correct for tag too. */
1739 enc
= EVP_CIPHER_CTX_encrypting(c
);
1741 if (len
< EVP_GCM_TLS_TAG_LEN
)
1743 len
-= EVP_GCM_TLS_TAG_LEN
;
1745 buf
[arg
- 2] = len
>> 8;
1746 buf
[arg
- 1] = len
& 0xff;
1747 /* Extra padding: tag appended to record. */
1748 return EVP_GCM_TLS_TAG_LEN
;
1752 gctx_out
= EVP_C_DATA(S390X_AES_GCM_CTX
, out
);
1753 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
1755 if (gctx
->iv
== iv
) {
1756 gctx_out
->iv
= EVP_CIPHER_CTX_iv_noconst(out
);
1758 len
= S390X_gcm_ivpadlen(gctx
->ivlen
);
1760 if ((gctx_out
->iv
= OPENSSL_malloc(len
)) == NULL
) {
1761 EVPerr(EVP_F_S390X_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
1765 memcpy(gctx_out
->iv
, gctx
->iv
, len
);
1775 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1777 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
,
1778 const unsigned char *key
,
1779 const unsigned char *iv
, int enc
)
1781 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1784 if (iv
== NULL
&& key
== NULL
)
1788 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
1789 memcpy(&gctx
->kma
.param
.k
, key
, keylen
);
1791 gctx
->fc
= S390X_AES_FC(keylen
);
1793 gctx
->fc
|= S390X_DECRYPT
;
1795 if (iv
== NULL
&& gctx
->iv_set
)
1799 s390x_aes_gcm_setiv(gctx
, iv
);
1805 s390x_aes_gcm_setiv(gctx
, iv
);
1807 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
1816 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1817 * if successful. Otherwise -1 is returned. Code is big-endian.
1819 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1820 const unsigned char *in
, size_t len
)
1822 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1823 const unsigned char *buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
1824 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1827 if (out
!= in
|| len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
1831 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1832 * Requirements from SP 800-38D". The requirements is for one party to the
1833 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1836 if (ctx
->encrypt
&& ++gctx
->tls_enc_records
== 0) {
1837 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER
, EVP_R_TOO_MANY_RECORDS
);
1841 if (EVP_CIPHER_CTX_ctrl(ctx
, enc
? EVP_CTRL_GCM_IV_GEN
1842 : EVP_CTRL_GCM_SET_IV_INV
,
1843 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
1846 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1847 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
1848 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1850 gctx
->kma
.param
.taadl
= gctx
->tls_aad_len
<< 3;
1851 gctx
->kma
.param
.tpcl
= len
<< 3;
1852 s390x_kma(buf
, gctx
->tls_aad_len
, in
, len
, out
,
1853 gctx
->fc
| S390X_KMA_LAAD
| S390X_KMA_LPC
, &gctx
->kma
.param
);
1856 memcpy(out
+ len
, gctx
->kma
.param
.t
.b
, EVP_GCM_TLS_TAG_LEN
);
1857 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
1859 if (CRYPTO_memcmp(gctx
->kma
.param
.t
.b
, in
+ len
,
1860 EVP_GCM_TLS_TAG_LEN
)) {
1861 OPENSSL_cleanse(out
, len
);
1868 gctx
->tls_aad_len
= -1;
1873 * Called from EVP layer to initialize context, process additional
1874 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1875 * ciphertext or process a TLS packet, depending on context. Returns bytes
1876 * written on success. Otherwise -1 is returned. Code is big-endian.
1878 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1879 const unsigned char *in
, size_t len
)
1881 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, ctx
);
1882 unsigned char *buf
, tmp
[16];
1888 if (gctx
->tls_aad_len
>= 0)
1889 return s390x_aes_gcm_tls_cipher(ctx
, out
, in
, len
);
1896 if (s390x_aes_gcm_aad(gctx
, in
, len
))
1899 if (s390x_aes_gcm(gctx
, in
, out
, len
))
1904 gctx
->kma
.param
.taadl
<<= 3;
1905 gctx
->kma
.param
.tpcl
<<= 3;
1906 s390x_kma(gctx
->ares
, gctx
->areslen
, gctx
->mres
, gctx
->mreslen
, tmp
,
1907 gctx
->fc
| S390X_KMA_LAAD
| S390X_KMA_LPC
, &gctx
->kma
.param
);
1908 /* recall that we already did en-/decrypt gctx->mres
1909 * and returned it to caller... */
1910 OPENSSL_cleanse(tmp
, gctx
->mreslen
);
1913 enc
= EVP_CIPHER_CTX_encrypting(ctx
);
1917 if (gctx
->taglen
< 0)
1920 buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
1921 if (CRYPTO_memcmp(buf
, gctx
->kma
.param
.t
.b
, gctx
->taglen
))
1928 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
1930 S390X_AES_GCM_CTX
*gctx
= EVP_C_DATA(S390X_AES_GCM_CTX
, c
);
1931 const unsigned char *iv
;
1936 iv
= EVP_CIPHER_CTX_iv(c
);
1938 OPENSSL_free(gctx
->iv
);
1940 OPENSSL_cleanse(gctx
, sizeof(*gctx
));
1944 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1945 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1946 # define S390X_aes_256_xts_CAPABLE 1
1948 # define s390x_aes_xts_init_key aes_xts_init_key
1949 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX
*ctx
,
1950 const unsigned char *key
,
1951 const unsigned char *iv
, int enc
);
1952 # define s390x_aes_xts_cipher aes_xts_cipher
1953 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
1954 const unsigned char *in
, size_t len
);
1955 # define s390x_aes_xts_ctrl aes_xts_ctrl
1956 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX
*, int type
, int arg
, void *ptr
);
1957 # define s390x_aes_xts_cleanup aes_xts_cleanup
1959 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1960 (OPENSSL_s390xcap_P.kmac[0] & \
1961 S390X_CAPBIT(S390X_AES_128)))
1962 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1963 (OPENSSL_s390xcap_P.kmac[0] & \
1964 S390X_CAPBIT(S390X_AES_192)))
1965 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1966 (OPENSSL_s390xcap_P.kmac[0] & \
1967 S390X_CAPBIT(S390X_AES_256)))
1969 # define S390X_CCM_AAD_FLAG 0x40
1972 * Set nonce and length fields. Code is big-endian.
1974 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX
*ctx
,
1975 const unsigned char *nonce
,
1978 ctx
->aes
.ccm
.nonce
.b
[0] &= ~S390X_CCM_AAD_FLAG
;
1979 ctx
->aes
.ccm
.nonce
.g
[1] = mlen
;
1980 memcpy(ctx
->aes
.ccm
.nonce
.b
+ 1, nonce
, 15 - ctx
->aes
.ccm
.l
);
1984 * Process additional authenticated data. Code is big-endian.
1986 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX
*ctx
, const unsigned char *aad
,
1995 ctx
->aes
.ccm
.nonce
.b
[0] |= S390X_CCM_AAD_FLAG
;
1997 /* Suppress 'type-punned pointer dereference' warning. */
1998 ptr
= ctx
->aes
.ccm
.buf
.b
;
2000 if (alen
< ((1 << 16) - (1 << 8))) {
2001 *(uint16_t *)ptr
= alen
;
2003 } else if (sizeof(alen
) == 8
2004 && alen
>= (size_t)1 << (32 % (sizeof(alen
) * 8))) {
2005 *(uint16_t *)ptr
= 0xffff;
2006 *(uint64_t *)(ptr
+ 2) = alen
;
2009 *(uint16_t *)ptr
= 0xfffe;
2010 *(uint32_t *)(ptr
+ 2) = alen
;
2014 while (i
< 16 && alen
) {
2015 ctx
->aes
.ccm
.buf
.b
[i
] = *aad
;
2021 ctx
->aes
.ccm
.buf
.b
[i
] = 0;
2025 ctx
->aes
.ccm
.kmac_param
.icv
.g
[0] = 0;
2026 ctx
->aes
.ccm
.kmac_param
.icv
.g
[1] = 0;
2027 s390x_kmac(ctx
->aes
.ccm
.nonce
.b
, 32, ctx
->aes
.ccm
.fc
,
2028 &ctx
->aes
.ccm
.kmac_param
);
2029 ctx
->aes
.ccm
.blocks
+= 2;
2032 alen
&= ~(size_t)0xf;
2034 s390x_kmac(aad
, alen
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2035 ctx
->aes
.ccm
.blocks
+= alen
>> 4;
2039 for (i
= 0; i
< rem
; i
++)
2040 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= aad
[i
];
2042 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2043 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2044 ctx
->aes
.ccm
.kmac_param
.k
);
2045 ctx
->aes
.ccm
.blocks
++;
2050 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2053 static int s390x_aes_ccm(S390X_AES_CCM_CTX
*ctx
, const unsigned char *in
,
2054 unsigned char *out
, size_t len
, int enc
)
2057 unsigned int i
, l
, num
;
2058 unsigned char flags
;
2060 flags
= ctx
->aes
.ccm
.nonce
.b
[0];
2061 if (!(flags
& S390X_CCM_AAD_FLAG
)) {
2062 s390x_km(ctx
->aes
.ccm
.nonce
.b
, 16, ctx
->aes
.ccm
.kmac_param
.icv
.b
,
2063 ctx
->aes
.ccm
.fc
, ctx
->aes
.ccm
.kmac_param
.k
);
2064 ctx
->aes
.ccm
.blocks
++;
2067 ctx
->aes
.ccm
.nonce
.b
[0] = l
;
2070 * Reconstruct length from encoded length field
2071 * and initialize it with counter value.
2074 for (i
= 15 - l
; i
< 15; i
++) {
2075 n
|= ctx
->aes
.ccm
.nonce
.b
[i
];
2076 ctx
->aes
.ccm
.nonce
.b
[i
] = 0;
2079 n
|= ctx
->aes
.ccm
.nonce
.b
[15];
2080 ctx
->aes
.ccm
.nonce
.b
[15] = 1;
2083 return -1; /* length mismatch */
2086 /* Two operations per block plus one for tag encryption */
2087 ctx
->aes
.ccm
.blocks
+= (((len
+ 15) >> 4) << 1) + 1;
2088 if (ctx
->aes
.ccm
.blocks
> (1ULL << 61))
2089 return -2; /* too much data */
2094 len
&= ~(size_t)0xf;
2097 /* mac-then-encrypt */
2099 s390x_kmac(in
, len
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2101 for (i
= 0; i
< rem
; i
++)
2102 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= in
[len
+ i
];
2104 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2105 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2106 ctx
->aes
.ccm
.kmac_param
.k
);
2109 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
+ rem
, &ctx
->aes
.key
.k
,
2110 ctx
->aes
.ccm
.nonce
.b
, ctx
->aes
.ccm
.buf
.b
,
2111 &num
, (ctr128_f
)AES_ctr32_encrypt
);
2113 /* decrypt-then-mac */
2114 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
+ rem
, &ctx
->aes
.key
.k
,
2115 ctx
->aes
.ccm
.nonce
.b
, ctx
->aes
.ccm
.buf
.b
,
2116 &num
, (ctr128_f
)AES_ctr32_encrypt
);
2119 s390x_kmac(out
, len
, ctx
->aes
.ccm
.fc
, &ctx
->aes
.ccm
.kmac_param
);
2121 for (i
= 0; i
< rem
; i
++)
2122 ctx
->aes
.ccm
.kmac_param
.icv
.b
[i
] ^= out
[len
+ i
];
2124 s390x_km(ctx
->aes
.ccm
.kmac_param
.icv
.b
, 16,
2125 ctx
->aes
.ccm
.kmac_param
.icv
.b
, ctx
->aes
.ccm
.fc
,
2126 ctx
->aes
.ccm
.kmac_param
.k
);
2130 for (i
= 15 - l
; i
< 16; i
++)
2131 ctx
->aes
.ccm
.nonce
.b
[i
] = 0;
2133 s390x_km(ctx
->aes
.ccm
.nonce
.b
, 16, ctx
->aes
.ccm
.buf
.b
, ctx
->aes
.ccm
.fc
,
2134 ctx
->aes
.ccm
.kmac_param
.k
);
2135 ctx
->aes
.ccm
.kmac_param
.icv
.g
[0] ^= ctx
->aes
.ccm
.buf
.g
[0];
2136 ctx
->aes
.ccm
.kmac_param
.icv
.g
[1] ^= ctx
->aes
.ccm
.buf
.g
[1];
2138 ctx
->aes
.ccm
.nonce
.b
[0] = flags
; /* restore flags field */
2143 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2144 * if successful. Otherwise -1 is returned.
2146 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2147 const unsigned char *in
, size_t len
)
2149 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2150 unsigned char *ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2151 unsigned char *buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
2152 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
2155 || len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->aes
.ccm
.m
))
2159 /* Set explicit iv (sequence number). */
2160 memcpy(out
, buf
, EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2163 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->aes
.ccm
.m
;
2165 * Get explicit iv (sequence number). We already have fixed iv
2166 * (server/client_write_iv) here.
2168 memcpy(ivec
+ EVP_CCM_TLS_FIXED_IV_LEN
, in
, EVP_CCM_TLS_EXPLICIT_IV_LEN
);
2169 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2171 /* Process aad (sequence number|type|version|length) */
2172 s390x_aes_ccm_aad(cctx
, buf
, cctx
->aes
.ccm
.tls_aad_len
);
2174 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2175 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2178 if (s390x_aes_ccm(cctx
, in
, out
, len
, enc
))
2181 memcpy(out
+ len
, cctx
->aes
.ccm
.kmac_param
.icv
.b
, cctx
->aes
.ccm
.m
);
2182 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->aes
.ccm
.m
;
2184 if (!s390x_aes_ccm(cctx
, in
, out
, len
, enc
)) {
2185 if (!CRYPTO_memcmp(cctx
->aes
.ccm
.kmac_param
.icv
.b
, in
+ len
,
2190 OPENSSL_cleanse(out
, len
);
2196 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2199 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
,
2200 const unsigned char *key
,
2201 const unsigned char *iv
, int enc
)
2203 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2204 unsigned char *ivec
;
2207 if (iv
== NULL
&& key
== NULL
)
2211 keylen
= EVP_CIPHER_CTX_key_length(ctx
);
2212 cctx
->aes
.ccm
.fc
= S390X_AES_FC(keylen
);
2213 memcpy(cctx
->aes
.ccm
.kmac_param
.k
, key
, keylen
);
2215 /* Store encoded m and l. */
2216 cctx
->aes
.ccm
.nonce
.b
[0] = ((cctx
->aes
.ccm
.l
- 1) & 0x7)
2217 | (((cctx
->aes
.ccm
.m
- 2) >> 1) & 0x7) << 3;
2218 memset(cctx
->aes
.ccm
.nonce
.b
+ 1, 0,
2219 sizeof(cctx
->aes
.ccm
.nonce
.b
));
2220 cctx
->aes
.ccm
.blocks
= 0;
2222 cctx
->aes
.ccm
.key_set
= 1;
2226 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2227 memcpy(ivec
, iv
, 15 - cctx
->aes
.ccm
.l
);
2229 cctx
->aes
.ccm
.iv_set
= 1;
2236 * Called from EVP layer to initialize context, process additional
2237 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2238 * plaintext or process a TLS packet, depending on context. Returns bytes
2239 * written on success. Otherwise -1 is returned.
2241 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2242 const unsigned char *in
, size_t len
)
2244 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, ctx
);
2245 const int enc
= EVP_CIPHER_CTX_encrypting(ctx
);
2247 unsigned char *buf
, *ivec
;
2249 if (!cctx
->aes
.ccm
.key_set
)
2252 if (cctx
->aes
.ccm
.tls_aad_len
>= 0)
2253 return s390x_aes_ccm_tls_cipher(ctx
, out
, in
, len
);
2256 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2257 * so integrity must be checked already at Update() i.e., before
2258 * potentially corrupted data is output.
2260 if (in
== NULL
&& out
!= NULL
)
2263 if (!cctx
->aes
.ccm
.iv_set
)
2266 if (!enc
&& !cctx
->aes
.ccm
.tag_set
)
2270 /* Update(): Pass message length. */
2272 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2273 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2275 cctx
->aes
.ccm
.len_set
= 1;
2279 /* Update(): Process aad. */
2280 if (!cctx
->aes
.ccm
.len_set
&& len
)
2283 s390x_aes_ccm_aad(cctx
, in
, len
);
2287 /* Update(): Process message. */
2289 if (!cctx
->aes
.ccm
.len_set
) {
2291 * In case message length was not previously set explicitly via
2292 * Update(), set it now.
2294 ivec
= EVP_CIPHER_CTX_iv_noconst(ctx
);
2295 s390x_aes_ccm_setiv(cctx
, ivec
, len
);
2297 cctx
->aes
.ccm
.len_set
= 1;
2301 if (s390x_aes_ccm(cctx
, in
, out
, len
, enc
))
2304 cctx
->aes
.ccm
.tag_set
= 1;
2309 if (!s390x_aes_ccm(cctx
, in
, out
, len
, enc
)) {
2310 buf
= EVP_CIPHER_CTX_buf_noconst(ctx
);
2311 if (!CRYPTO_memcmp(cctx
->aes
.ccm
.kmac_param
.icv
.b
, buf
,
2317 OPENSSL_cleanse(out
, len
);
2319 cctx
->aes
.ccm
.iv_set
= 0;
2320 cctx
->aes
.ccm
.tag_set
= 0;
2321 cctx
->aes
.ccm
.len_set
= 0;
2327 * Performs various operations on the context structure depending on control
2328 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2329 * Code is big-endian.
2331 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2333 S390X_AES_CCM_CTX
*cctx
= EVP_C_DATA(S390X_AES_CCM_CTX
, c
);
2334 unsigned char *buf
, *iv
;
2339 cctx
->aes
.ccm
.key_set
= 0;
2340 cctx
->aes
.ccm
.iv_set
= 0;
2341 cctx
->aes
.ccm
.l
= 8;
2342 cctx
->aes
.ccm
.m
= 12;
2343 cctx
->aes
.ccm
.tag_set
= 0;
2344 cctx
->aes
.ccm
.len_set
= 0;
2345 cctx
->aes
.ccm
.tls_aad_len
= -1;
2348 case EVP_CTRL_AEAD_TLS1_AAD
:
2349 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
2352 /* Save the aad for later use. */
2353 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
2354 memcpy(buf
, ptr
, arg
);
2355 cctx
->aes
.ccm
.tls_aad_len
= arg
;
2357 len
= buf
[arg
- 2] << 8 | buf
[arg
- 1];
2358 if (len
< EVP_CCM_TLS_EXPLICIT_IV_LEN
)
2361 /* Correct length for explicit iv. */
2362 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
2364 enc
= EVP_CIPHER_CTX_encrypting(c
);
2366 if (len
< cctx
->aes
.ccm
.m
)
2369 /* Correct length for tag. */
2370 len
-= cctx
->aes
.ccm
.m
;
2373 buf
[arg
- 2] = len
>> 8;
2374 buf
[arg
- 1] = len
& 0xff;
2376 /* Extra padding: tag appended to record. */
2377 return cctx
->aes
.ccm
.m
;
2379 case EVP_CTRL_CCM_SET_IV_FIXED
:
2380 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
2383 /* Copy to first part of the iv. */
2384 iv
= EVP_CIPHER_CTX_iv_noconst(c
);
2385 memcpy(iv
, ptr
, arg
);
2388 case EVP_CTRL_AEAD_SET_IVLEN
:
2392 case EVP_CTRL_CCM_SET_L
:
2393 if (arg
< 2 || arg
> 8)
2396 cctx
->aes
.ccm
.l
= arg
;
2399 case EVP_CTRL_AEAD_SET_TAG
:
2400 if ((arg
& 1) || arg
< 4 || arg
> 16)
2403 enc
= EVP_CIPHER_CTX_encrypting(c
);
2408 cctx
->aes
.ccm
.tag_set
= 1;
2409 buf
= EVP_CIPHER_CTX_buf_noconst(c
);
2410 memcpy(buf
, ptr
, arg
);
2413 cctx
->aes
.ccm
.m
= arg
;
2416 case EVP_CTRL_AEAD_GET_TAG
:
2417 enc
= EVP_CIPHER_CTX_encrypting(c
);
2418 if (!enc
|| !cctx
->aes
.ccm
.tag_set
)
2421 if(arg
< cctx
->aes
.ccm
.m
)
2424 memcpy(ptr
, cctx
->aes
.ccm
.kmac_param
.icv
.b
, cctx
->aes
.ccm
.m
);
2425 cctx
->aes
.ccm
.tag_set
= 0;
2426 cctx
->aes
.ccm
.iv_set
= 0;
2427 cctx
->aes
.ccm
.len_set
= 0;
2438 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2440 # ifndef OPENSSL_NO_OCB
2441 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2442 # define S390X_aes_128_ocb_CAPABLE 0
2443 # define S390X_aes_192_ocb_CAPABLE 0
2444 # define S390X_aes_256_ocb_CAPABLE 0
2446 # define s390x_aes_ocb_init_key aes_ocb_init_key
2447 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2448 const unsigned char *iv
, int enc
);
2449 # define s390x_aes_ocb_cipher aes_ocb_cipher
2450 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2451 const unsigned char *in
, size_t len
);
2452 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2453 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX
*);
2454 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2455 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX
*, int type
, int arg
, void *ptr
);
2458 # ifndef OPENSSL_NO_SIV
2459 # define S390X_AES_SIV_CTX EVP_AES_SIV_CTX
2460 # define S390X_aes_128_siv_CAPABLE 0
2461 # define S390X_aes_192_siv_CAPABLE 0
2462 # define S390X_aes_256_siv_CAPABLE 0
2464 # define s390x_aes_siv_init_key aes_siv_init_key
2465 # define s390x_aes_siv_cipher aes_siv_cipher
2466 # define s390x_aes_siv_cleanup aes_siv_cleanup
2467 # define s390x_aes_siv_ctrl aes_siv_ctrl
2470 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2472 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2473 nid##_##keylen##_##nmode,blocksize, \
2476 flags | EVP_CIPH_##MODE##_MODE, \
2477 s390x_aes_##mode##_init_key, \
2478 s390x_aes_##mode##_cipher, \
2480 sizeof(S390X_AES_##MODE##_CTX), \
2486 static const EVP_CIPHER aes_##keylen##_##mode = { \
2487 nid##_##keylen##_##nmode, \
2491 flags | EVP_CIPH_##MODE##_MODE, \
2493 aes_##mode##_cipher, \
2495 sizeof(EVP_AES_KEY), \
2501 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2503 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2504 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2507 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2508 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2509 nid##_##keylen##_##mode, \
2511 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
2513 flags | EVP_CIPH_##MODE##_MODE, \
2514 s390x_aes_##mode##_init_key, \
2515 s390x_aes_##mode##_cipher, \
2516 s390x_aes_##mode##_cleanup, \
2517 sizeof(S390X_AES_##MODE##_CTX), \
2520 s390x_aes_##mode##_ctrl, \
2523 static const EVP_CIPHER aes_##keylen##_##mode = { \
2524 nid##_##keylen##_##mode,blocksize, \
2525 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
2527 flags | EVP_CIPH_##MODE##_MODE, \
2528 aes_##mode##_init_key, \
2529 aes_##mode##_cipher, \
2530 aes_##mode##_cleanup, \
2531 sizeof(EVP_AES_##MODE##_CTX), \
2534 aes_##mode##_ctrl, \
2537 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2539 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2540 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2545 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2546 static const EVP_CIPHER aes_##keylen##_##mode = { \
2547 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2548 flags|EVP_CIPH_##MODE##_MODE, \
2550 aes_##mode##_cipher, \
2552 sizeof(EVP_AES_KEY), \
2553 NULL,NULL,NULL,NULL }; \
2554 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2555 { return &aes_##keylen##_##mode; }
2557 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2558 static const EVP_CIPHER aes_##keylen##_##mode = { \
2559 nid##_##keylen##_##mode,blocksize, \
2560 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
2562 flags|EVP_CIPH_##MODE##_MODE, \
2563 aes_##mode##_init_key, \
2564 aes_##mode##_cipher, \
2565 aes_##mode##_cleanup, \
2566 sizeof(EVP_AES_##MODE##_CTX), \
2567 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2568 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2569 { return &aes_##keylen##_##mode; }
2573 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2574 # include "arm_arch.h"
2575 # if __ARM_MAX_ARCH__>=7
2576 # if defined(BSAES_ASM)
2577 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2579 # if defined(VPAES_ASM)
2580 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2582 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2583 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2584 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2585 # define HWAES_encrypt aes_v8_encrypt
2586 # define HWAES_decrypt aes_v8_decrypt
2587 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2588 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2592 #if defined(HWAES_CAPABLE)
2593 int HWAES_set_encrypt_key(const unsigned char *userKey
, const int bits
,
2595 int HWAES_set_decrypt_key(const unsigned char *userKey
, const int bits
,
2597 void HWAES_encrypt(const unsigned char *in
, unsigned char *out
,
2598 const AES_KEY
*key
);
2599 void HWAES_decrypt(const unsigned char *in
, unsigned char *out
,
2600 const AES_KEY
*key
);
2601 void HWAES_cbc_encrypt(const unsigned char *in
, unsigned char *out
,
2602 size_t length
, const AES_KEY
*key
,
2603 unsigned char *ivec
, const int enc
);
2604 void HWAES_ctr32_encrypt_blocks(const unsigned char *in
, unsigned char *out
,
2605 size_t len
, const AES_KEY
*key
,
2606 const unsigned char ivec
[16]);
2607 void HWAES_xts_encrypt(const unsigned char *inp
, unsigned char *out
,
2608 size_t len
, const AES_KEY
*key1
,
2609 const AES_KEY
*key2
, const unsigned char iv
[16]);
2610 void HWAES_xts_decrypt(const unsigned char *inp
, unsigned char *out
,
2611 size_t len
, const AES_KEY
*key1
,
2612 const AES_KEY
*key2
, const unsigned char iv
[16]);
2615 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2616 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2617 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2618 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2619 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2620 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2621 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2622 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2624 static int aes_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
2625 const unsigned char *iv
, int enc
)
2628 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2630 mode
= EVP_CIPHER_CTX_mode(ctx
);
2631 if ((mode
== EVP_CIPH_ECB_MODE
|| mode
== EVP_CIPH_CBC_MODE
)
2633 #ifdef HWAES_CAPABLE
2634 if (HWAES_CAPABLE
) {
2635 ret
= HWAES_set_decrypt_key(key
,
2636 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2638 dat
->block
= (block128_f
) HWAES_decrypt
;
2639 dat
->stream
.cbc
= NULL
;
2640 # ifdef HWAES_cbc_encrypt
2641 if (mode
== EVP_CIPH_CBC_MODE
)
2642 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
2646 #ifdef BSAES_CAPABLE
2647 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CBC_MODE
) {
2648 ret
= AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2650 dat
->block
= (block128_f
) AES_decrypt
;
2651 dat
->stream
.cbc
= (cbc128_f
) bsaes_cbc_encrypt
;
2654 #ifdef VPAES_CAPABLE
2655 if (VPAES_CAPABLE
) {
2656 ret
= vpaes_set_decrypt_key(key
,
2657 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2659 dat
->block
= (block128_f
) vpaes_decrypt
;
2660 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2661 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
2665 ret
= AES_set_decrypt_key(key
,
2666 EVP_CIPHER_CTX_key_length(ctx
) * 8,
2668 dat
->block
= (block128_f
) AES_decrypt
;
2669 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2670 (cbc128_f
) AES_cbc_encrypt
: NULL
;
2673 #ifdef HWAES_CAPABLE
2674 if (HWAES_CAPABLE
) {
2675 ret
= HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2677 dat
->block
= (block128_f
) HWAES_encrypt
;
2678 dat
->stream
.cbc
= NULL
;
2679 # ifdef HWAES_cbc_encrypt
2680 if (mode
== EVP_CIPH_CBC_MODE
)
2681 dat
->stream
.cbc
= (cbc128_f
) HWAES_cbc_encrypt
;
2684 # ifdef HWAES_ctr32_encrypt_blocks
2685 if (mode
== EVP_CIPH_CTR_MODE
)
2686 dat
->stream
.ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
2689 (void)0; /* terminate potentially open 'else' */
2692 #ifdef BSAES_CAPABLE
2693 if (BSAES_CAPABLE
&& mode
== EVP_CIPH_CTR_MODE
) {
2694 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2696 dat
->block
= (block128_f
) AES_encrypt
;
2697 dat
->stream
.ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
2700 #ifdef VPAES_CAPABLE
2701 if (VPAES_CAPABLE
) {
2702 ret
= vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2704 dat
->block
= (block128_f
) vpaes_encrypt
;
2705 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2706 (cbc128_f
) vpaes_cbc_encrypt
: NULL
;
2710 ret
= AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
2712 dat
->block
= (block128_f
) AES_encrypt
;
2713 dat
->stream
.cbc
= mode
== EVP_CIPH_CBC_MODE
?
2714 (cbc128_f
) AES_cbc_encrypt
: NULL
;
2716 if (mode
== EVP_CIPH_CTR_MODE
)
2717 dat
->stream
.ctr
= (ctr128_f
) AES_ctr32_encrypt
;
2722 EVPerr(EVP_F_AES_INIT_KEY
, EVP_R_AES_KEY_SETUP_FAILED
);
2729 static int aes_cbc_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2730 const unsigned char *in
, size_t len
)
2732 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2734 if (dat
->stream
.cbc
)
2735 (*dat
->stream
.cbc
) (in
, out
, len
, &dat
->ks
,
2736 EVP_CIPHER_CTX_iv_noconst(ctx
),
2737 EVP_CIPHER_CTX_encrypting(ctx
));
2738 else if (EVP_CIPHER_CTX_encrypting(ctx
))
2739 CRYPTO_cbc128_encrypt(in
, out
, len
, &dat
->ks
,
2740 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
2742 CRYPTO_cbc128_decrypt(in
, out
, len
, &dat
->ks
,
2743 EVP_CIPHER_CTX_iv_noconst(ctx
), dat
->block
);
2748 static int aes_ecb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2749 const unsigned char *in
, size_t len
)
2751 size_t bl
= EVP_CIPHER_CTX_block_size(ctx
);
2753 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2758 for (i
= 0, len
-= bl
; i
<= len
; i
+= bl
)
2759 (*dat
->block
) (in
+ i
, out
+ i
, &dat
->ks
);
2764 static int aes_ofb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2765 const unsigned char *in
, size_t len
)
2767 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2769 int num
= EVP_CIPHER_CTX_num(ctx
);
2770 CRYPTO_ofb128_encrypt(in
, out
, len
, &dat
->ks
,
2771 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
, dat
->block
);
2772 EVP_CIPHER_CTX_set_num(ctx
, num
);
2776 static int aes_cfb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2777 const unsigned char *in
, size_t len
)
2779 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2781 int num
= EVP_CIPHER_CTX_num(ctx
);
2782 CRYPTO_cfb128_encrypt(in
, out
, len
, &dat
->ks
,
2783 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2784 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2785 EVP_CIPHER_CTX_set_num(ctx
, num
);
2789 static int aes_cfb8_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2790 const unsigned char *in
, size_t len
)
2792 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2794 int num
= EVP_CIPHER_CTX_num(ctx
);
2795 CRYPTO_cfb128_8_encrypt(in
, out
, len
, &dat
->ks
,
2796 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2797 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2798 EVP_CIPHER_CTX_set_num(ctx
, num
);
2802 static int aes_cfb1_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2803 const unsigned char *in
, size_t len
)
2805 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2807 if (EVP_CIPHER_CTX_test_flags(ctx
, EVP_CIPH_FLAG_LENGTH_BITS
)) {
2808 int num
= EVP_CIPHER_CTX_num(ctx
);
2809 CRYPTO_cfb128_1_encrypt(in
, out
, len
, &dat
->ks
,
2810 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2811 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2812 EVP_CIPHER_CTX_set_num(ctx
, num
);
2816 while (len
>= MAXBITCHUNK
) {
2817 int num
= EVP_CIPHER_CTX_num(ctx
);
2818 CRYPTO_cfb128_1_encrypt(in
, out
, MAXBITCHUNK
* 8, &dat
->ks
,
2819 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2820 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2821 EVP_CIPHER_CTX_set_num(ctx
, num
);
2827 int num
= EVP_CIPHER_CTX_num(ctx
);
2828 CRYPTO_cfb128_1_encrypt(in
, out
, len
* 8, &dat
->ks
,
2829 EVP_CIPHER_CTX_iv_noconst(ctx
), &num
,
2830 EVP_CIPHER_CTX_encrypting(ctx
), dat
->block
);
2831 EVP_CIPHER_CTX_set_num(ctx
, num
);
2837 static int aes_ctr_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
2838 const unsigned char *in
, size_t len
)
2840 unsigned int num
= EVP_CIPHER_CTX_num(ctx
);
2841 EVP_AES_KEY
*dat
= EVP_C_DATA(EVP_AES_KEY
,ctx
);
2843 if (dat
->stream
.ctr
)
2844 CRYPTO_ctr128_encrypt_ctr32(in
, out
, len
, &dat
->ks
,
2845 EVP_CIPHER_CTX_iv_noconst(ctx
),
2846 EVP_CIPHER_CTX_buf_noconst(ctx
),
2847 &num
, dat
->stream
.ctr
);
2849 CRYPTO_ctr128_encrypt(in
, out
, len
, &dat
->ks
,
2850 EVP_CIPHER_CTX_iv_noconst(ctx
),
2851 EVP_CIPHER_CTX_buf_noconst(ctx
), &num
,
2853 EVP_CIPHER_CTX_set_num(ctx
, num
);
2857 BLOCK_CIPHER_generic_pack(NID_aes
, 128, 0)
2858 BLOCK_CIPHER_generic_pack(NID_aes
, 192, 0)
2859 BLOCK_CIPHER_generic_pack(NID_aes
, 256, 0)
2861 static int aes_gcm_cleanup(EVP_CIPHER_CTX
*c
)
2863 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
2866 OPENSSL_cleanse(&gctx
->gcm
, sizeof(gctx
->gcm
));
2867 if (gctx
->iv
!= EVP_CIPHER_CTX_iv_noconst(c
))
2868 OPENSSL_free(gctx
->iv
);
2872 static int aes_gcm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
2874 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,c
);
2879 gctx
->ivlen
= c
->cipher
->iv_len
;
2883 gctx
->tls_aad_len
= -1;
2886 case EVP_CTRL_AEAD_SET_IVLEN
:
2889 /* Allocate memory for IV if needed */
2890 if ((arg
> EVP_MAX_IV_LENGTH
) && (arg
> gctx
->ivlen
)) {
2891 if (gctx
->iv
!= c
->iv
)
2892 OPENSSL_free(gctx
->iv
);
2893 if ((gctx
->iv
= OPENSSL_malloc(arg
)) == NULL
) {
2894 EVPerr(EVP_F_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
2901 case EVP_CTRL_AEAD_SET_TAG
:
2902 if (arg
<= 0 || arg
> 16 || c
->encrypt
)
2904 memcpy(c
->buf
, ptr
, arg
);
2908 case EVP_CTRL_AEAD_GET_TAG
:
2909 if (arg
<= 0 || arg
> 16 || !c
->encrypt
2910 || gctx
->taglen
< 0)
2912 memcpy(ptr
, c
->buf
, arg
);
2915 case EVP_CTRL_GET_IV
:
2916 if (gctx
->iv_gen
!= 1 && gctx
->iv_gen_rand
!= 1)
2918 if (gctx
->ivlen
!= arg
)
2920 memcpy(ptr
, gctx
->iv
, arg
);
2923 case EVP_CTRL_GCM_SET_IV_FIXED
:
2924 /* Special case: -1 length restores whole IV */
2926 memcpy(gctx
->iv
, ptr
, gctx
->ivlen
);
2931 * Fixed field must be at least 4 bytes and invocation field at least
2934 if ((arg
< 4) || (gctx
->ivlen
- arg
) < 8)
2937 memcpy(gctx
->iv
, ptr
, arg
);
2938 if (c
->encrypt
&& RAND_bytes(gctx
->iv
+ arg
, gctx
->ivlen
- arg
) <= 0)
2943 case EVP_CTRL_GCM_IV_GEN
:
2944 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0)
2946 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
2947 if (arg
<= 0 || arg
> gctx
->ivlen
)
2949 memcpy(ptr
, gctx
->iv
+ gctx
->ivlen
- arg
, arg
);
2951 * Invocation field will be at least 8 bytes in size and so no need
2952 * to check wrap around or increment more than last 8 bytes.
2954 ctr64_inc(gctx
->iv
+ gctx
->ivlen
- 8);
2958 case EVP_CTRL_GCM_SET_IV_INV
:
2959 if (gctx
->iv_gen
== 0 || gctx
->key_set
== 0 || c
->encrypt
)
2961 memcpy(gctx
->iv
+ gctx
->ivlen
- arg
, ptr
, arg
);
2962 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
2966 case EVP_CTRL_AEAD_TLS1_AAD
:
2967 /* Save the AAD for later use */
2968 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
2970 memcpy(c
->buf
, ptr
, arg
);
2971 gctx
->tls_aad_len
= arg
;
2972 gctx
->tls_enc_records
= 0;
2974 unsigned int len
= c
->buf
[arg
- 2] << 8 | c
->buf
[arg
- 1];
2975 /* Correct length for explicit IV */
2976 if (len
< EVP_GCM_TLS_EXPLICIT_IV_LEN
)
2978 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
2979 /* If decrypting correct for tag too */
2981 if (len
< EVP_GCM_TLS_TAG_LEN
)
2983 len
-= EVP_GCM_TLS_TAG_LEN
;
2985 c
->buf
[arg
- 2] = len
>> 8;
2986 c
->buf
[arg
- 1] = len
& 0xff;
2988 /* Extra padding: tag appended to record */
2989 return EVP_GCM_TLS_TAG_LEN
;
2993 EVP_CIPHER_CTX
*out
= ptr
;
2994 EVP_AES_GCM_CTX
*gctx_out
= EVP_C_DATA(EVP_AES_GCM_CTX
,out
);
2995 if (gctx
->gcm
.key
) {
2996 if (gctx
->gcm
.key
!= &gctx
->ks
)
2998 gctx_out
->gcm
.key
= &gctx_out
->ks
;
3000 if (gctx
->iv
== c
->iv
)
3001 gctx_out
->iv
= out
->iv
;
3003 if ((gctx_out
->iv
= OPENSSL_malloc(gctx
->ivlen
)) == NULL
) {
3004 EVPerr(EVP_F_AES_GCM_CTRL
, ERR_R_MALLOC_FAILURE
);
3007 memcpy(gctx_out
->iv
, gctx
->iv
, gctx
->ivlen
);
3018 static int aes_gcm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3019 const unsigned char *iv
, int enc
)
3021 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3026 #ifdef HWAES_CAPABLE
3027 if (HWAES_CAPABLE
) {
3028 HWAES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3029 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3030 (block128_f
) HWAES_encrypt
);
3031 # ifdef HWAES_ctr32_encrypt_blocks
3032 gctx
->ctr
= (ctr128_f
) HWAES_ctr32_encrypt_blocks
;
3039 #ifdef BSAES_CAPABLE
3040 if (BSAES_CAPABLE
) {
3041 AES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3042 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3043 (block128_f
) AES_encrypt
);
3044 gctx
->ctr
= (ctr128_f
) bsaes_ctr32_encrypt_blocks
;
3048 #ifdef VPAES_CAPABLE
3049 if (VPAES_CAPABLE
) {
3050 vpaes_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3051 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3052 (block128_f
) vpaes_encrypt
);
3057 (void)0; /* terminate potentially open 'else' */
3059 AES_set_encrypt_key(key
, ctx
->key_len
* 8, &gctx
->ks
.ks
);
3060 CRYPTO_gcm128_init(&gctx
->gcm
, &gctx
->ks
,
3061 (block128_f
) AES_encrypt
);
3063 gctx
->ctr
= (ctr128_f
) AES_ctr32_encrypt
;
3070 * If we have an iv can set it directly, otherwise use saved IV.
3072 if (iv
== NULL
&& gctx
->iv_set
)
3075 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
3080 /* If key set use IV, otherwise copy */
3082 CRYPTO_gcm128_setiv(&gctx
->gcm
, iv
, gctx
->ivlen
);
3084 memcpy(gctx
->iv
, iv
, gctx
->ivlen
);
3092 * Handle TLS GCM packet format. This consists of the last portion of the IV
3093 * followed by the payload and finally the tag. On encrypt generate IV,
3094 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3098 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3099 const unsigned char *in
, size_t len
)
3101 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3103 /* Encrypt/decrypt must be performed in place */
3105 || len
< (EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
))
3109 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3110 * Requirements from SP 800-38D". The requirements is for one party to the
3111 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3114 if (ctx
->encrypt
&& ++gctx
->tls_enc_records
== 0) {
3115 EVPerr(EVP_F_AES_GCM_TLS_CIPHER
, EVP_R_TOO_MANY_RECORDS
);
3120 * Set IV from start of buffer or generate IV and write to start of
3123 if (EVP_CIPHER_CTX_ctrl(ctx
, ctx
->encrypt
? EVP_CTRL_GCM_IV_GEN
3124 : EVP_CTRL_GCM_SET_IV_INV
,
3125 EVP_GCM_TLS_EXPLICIT_IV_LEN
, out
) <= 0)
3128 if (CRYPTO_gcm128_aad(&gctx
->gcm
, ctx
->buf
, gctx
->tls_aad_len
))
3130 /* Fix buffer and length to point to payload */
3131 in
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
3132 out
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
3133 len
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
3135 /* Encrypt payload */
3138 #if defined(AES_GCM_ASM)
3139 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
3140 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3143 bulk
= AES_gcm_encrypt(in
, out
, len
,
3145 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3146 gctx
->gcm
.len
.u
[1] += bulk
;
3149 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
3152 len
- bulk
, gctx
->ctr
))
3156 #if defined(AES_GCM_ASM2)
3157 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
3158 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3161 bulk
= AES_gcm_encrypt(in
, out
, len
,
3163 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3164 gctx
->gcm
.len
.u
[1] += bulk
;
3167 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
3168 in
+ bulk
, out
+ bulk
, len
- bulk
))
3172 /* Finally write tag */
3173 CRYPTO_gcm128_tag(&gctx
->gcm
, out
, EVP_GCM_TLS_TAG_LEN
);
3174 rv
= len
+ EVP_GCM_TLS_EXPLICIT_IV_LEN
+ EVP_GCM_TLS_TAG_LEN
;
3179 #if defined(AES_GCM_ASM)
3180 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
3181 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3184 bulk
= AES_gcm_decrypt(in
, out
, len
,
3186 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3187 gctx
->gcm
.len
.u
[1] += bulk
;
3190 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
3193 len
- bulk
, gctx
->ctr
))
3197 #if defined(AES_GCM_ASM2)
3198 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
3199 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, NULL
, NULL
, 0))
3202 bulk
= AES_gcm_decrypt(in
, out
, len
,
3204 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3205 gctx
->gcm
.len
.u
[1] += bulk
;
3208 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
3209 in
+ bulk
, out
+ bulk
, len
- bulk
))
3213 CRYPTO_gcm128_tag(&gctx
->gcm
, ctx
->buf
, EVP_GCM_TLS_TAG_LEN
);
3214 /* If tag mismatch wipe buffer */
3215 if (CRYPTO_memcmp(ctx
->buf
, in
+ len
, EVP_GCM_TLS_TAG_LEN
)) {
3216 OPENSSL_cleanse(out
, len
);
3224 gctx
->tls_aad_len
= -1;
3230 * See SP800-38D (GCM) Section 8 "Uniqueness requirement on IVS and keys"
3232 * See also 8.2.2 RBG-based construction.
3233 * Random construction consists of a free field (which can be NULL) and a
3234 * random field which will use a DRBG that can return at least 96 bits of
3235 * entropy strength. (The DRBG must be seeded by the FIPS module).
3237 static int aes_gcm_iv_generate(EVP_AES_GCM_CTX
*gctx
, int offset
)
3239 int sz
= gctx
->ivlen
- offset
;
3241 /* Must be at least 96 bits */
3242 if (sz
<= 0 || gctx
->ivlen
< 12)
3245 /* Use DRBG to generate random iv */
3246 if (RAND_bytes(gctx
->iv
+ offset
, sz
) <= 0)
3250 #endif /* FIPS_MODE */
3252 static int aes_gcm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3253 const unsigned char *in
, size_t len
)
3255 EVP_AES_GCM_CTX
*gctx
= EVP_C_DATA(EVP_AES_GCM_CTX
,ctx
);
3257 /* If not set up, return error */
3261 if (gctx
->tls_aad_len
>= 0)
3262 return aes_gcm_tls_cipher(ctx
, out
, in
, len
);
3266 * FIPS requires generation of AES-GCM IV's inside the FIPS module.
3267 * The IV can still be set externally (the security policy will state that
3268 * this is not FIPS compliant). There are some applications
3269 * where setting the IV externally is the only option available.
3271 if (!gctx
->iv_set
) {
3272 if (!ctx
->encrypt
|| !aes_gcm_iv_generate(gctx
, 0))
3274 CRYPTO_gcm128_setiv(&gctx
->gcm
, gctx
->iv
, gctx
->ivlen
);
3276 gctx
->iv_gen_rand
= 1;
3281 #endif /* FIPS_MODE */
3285 if (CRYPTO_gcm128_aad(&gctx
->gcm
, in
, len
))
3287 } else if (ctx
->encrypt
) {
3290 #if defined(AES_GCM_ASM)
3291 if (len
>= 32 && AES_GCM_ASM(gctx
)) {
3292 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3294 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
3297 bulk
= AES_gcm_encrypt(in
+ res
,
3298 out
+ res
, len
- res
,
3299 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
3301 gctx
->gcm
.len
.u
[1] += bulk
;
3305 if (CRYPTO_gcm128_encrypt_ctr32(&gctx
->gcm
,
3308 len
- bulk
, gctx
->ctr
))
3312 #if defined(AES_GCM_ASM2)
3313 if (len
>= 32 && AES_GCM_ASM2(gctx
)) {
3314 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3316 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
, in
, out
, res
))
3319 bulk
= AES_gcm_encrypt(in
+ res
,
3320 out
+ res
, len
- res
,
3321 gctx
->gcm
.key
, gctx
->gcm
.Yi
.c
,
3323 gctx
->gcm
.len
.u
[1] += bulk
;
3327 if (CRYPTO_gcm128_encrypt(&gctx
->gcm
,
3328 in
+ bulk
, out
+ bulk
, len
- bulk
))
3334 #if defined(AES_GCM_ASM)
3335 if (len
>= 16 && AES_GCM_ASM(gctx
)) {
3336 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3338 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
3341 bulk
= AES_gcm_decrypt(in
+ res
,
3342 out
+ res
, len
- res
,
3344 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3345 gctx
->gcm
.len
.u
[1] += bulk
;
3349 if (CRYPTO_gcm128_decrypt_ctr32(&gctx
->gcm
,
3352 len
- bulk
, gctx
->ctr
))
3356 #if defined(AES_GCM_ASM2)
3357 if (len
>= 16 && AES_GCM_ASM2(gctx
)) {
3358 size_t res
= (16 - gctx
->gcm
.mres
) % 16;
3360 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
, in
, out
, res
))
3363 bulk
= AES_gcm_decrypt(in
+ res
,
3364 out
+ res
, len
- res
,
3366 gctx
->gcm
.Yi
.c
, gctx
->gcm
.Xi
.u
);
3367 gctx
->gcm
.len
.u
[1] += bulk
;
3371 if (CRYPTO_gcm128_decrypt(&gctx
->gcm
,
3372 in
+ bulk
, out
+ bulk
, len
- bulk
))
3378 if (!ctx
->encrypt
) {
3379 if (gctx
->taglen
< 0)
3381 if (CRYPTO_gcm128_finish(&gctx
->gcm
, ctx
->buf
, gctx
->taglen
) != 0)
3386 CRYPTO_gcm128_tag(&gctx
->gcm
, ctx
->buf
, 16);
3388 /* Don't reuse the IV */
3395 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3396 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3397 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3398 | EVP_CIPH_CUSTOM_COPY)
3400 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, gcm
, GCM
,
3401 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3402 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, gcm
, GCM
,
3403 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3404 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, gcm
, GCM
,
3405 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3407 static int aes_xts_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3409 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,c
);
3410 if (type
== EVP_CTRL_COPY
) {
3411 EVP_CIPHER_CTX
*out
= ptr
;
3412 EVP_AES_XTS_CTX
*xctx_out
= EVP_C_DATA(EVP_AES_XTS_CTX
,out
);
3413 if (xctx
->xts
.key1
) {
3414 if (xctx
->xts
.key1
!= &xctx
->ks1
)
3416 xctx_out
->xts
.key1
= &xctx_out
->ks1
;
3418 if (xctx
->xts
.key2
) {
3419 if (xctx
->xts
.key2
!= &xctx
->ks2
)
3421 xctx_out
->xts
.key2
= &xctx_out
->ks2
;
3424 } else if (type
!= EVP_CTRL_INIT
)
3426 /* key1 and key2 are used as an indicator both key and IV are set */
3427 xctx
->xts
.key1
= NULL
;
3428 xctx
->xts
.key2
= NULL
;
3432 static int aes_xts_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3433 const unsigned char *iv
, int enc
)
3435 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
3441 /* The key is two half length keys in reality */
3442 const int bytes
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
3443 const int bits
= bytes
* 8;
3446 * Verify that the two keys are different.
3448 * This addresses the vulnerability described in Rogaway's
3449 * September 2004 paper:
3451 * "Efficient Instantiations of Tweakable Blockciphers and
3452 * Refinements to Modes OCB and PMAC".
3453 * (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf)
3455 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states
3457 * "The check for Key_1 != Key_2 shall be done at any place
3458 * BEFORE using the keys in the XTS-AES algorithm to process
3461 if (memcmp(key
, key
+ bytes
, bytes
) == 0) {
3462 EVPerr(EVP_F_AES_XTS_INIT_KEY
, EVP_R_XTS_DUPLICATED_KEYS
);
3467 xctx
->stream
= enc
? AES_xts_encrypt
: AES_xts_decrypt
;
3469 xctx
->stream
= NULL
;
3471 /* key_len is two AES keys */
3472 #ifdef HWAES_CAPABLE
3473 if (HWAES_CAPABLE
) {
3475 HWAES_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3476 xctx
->xts
.block1
= (block128_f
) HWAES_encrypt
;
3477 # ifdef HWAES_xts_encrypt
3478 xctx
->stream
= HWAES_xts_encrypt
;
3481 HWAES_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3482 xctx
->xts
.block1
= (block128_f
) HWAES_decrypt
;
3483 # ifdef HWAES_xts_decrypt
3484 xctx
->stream
= HWAES_xts_decrypt
;
3488 HWAES_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
3489 xctx
->xts
.block2
= (block128_f
) HWAES_encrypt
;
3491 xctx
->xts
.key1
= &xctx
->ks1
;
3495 #ifdef BSAES_CAPABLE
3497 xctx
->stream
= enc
? bsaes_xts_encrypt
: bsaes_xts_decrypt
;
3500 #ifdef VPAES_CAPABLE
3501 if (VPAES_CAPABLE
) {
3503 vpaes_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3504 xctx
->xts
.block1
= (block128_f
) vpaes_encrypt
;
3506 vpaes_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3507 xctx
->xts
.block1
= (block128_f
) vpaes_decrypt
;
3510 vpaes_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
3511 xctx
->xts
.block2
= (block128_f
) vpaes_encrypt
;
3513 xctx
->xts
.key1
= &xctx
->ks1
;
3517 (void)0; /* terminate potentially open 'else' */
3520 AES_set_encrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3521 xctx
->xts
.block1
= (block128_f
) AES_encrypt
;
3523 AES_set_decrypt_key(key
, bits
, &xctx
->ks1
.ks
);
3524 xctx
->xts
.block1
= (block128_f
) AES_decrypt
;
3527 AES_set_encrypt_key(key
+ bytes
, bits
, &xctx
->ks2
.ks
);
3528 xctx
->xts
.block2
= (block128_f
) AES_encrypt
;
3530 xctx
->xts
.key1
= &xctx
->ks1
;
3535 xctx
->xts
.key2
= &xctx
->ks2
;
3536 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 16);
3542 static int aes_xts_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3543 const unsigned char *in
, size_t len
)
3545 EVP_AES_XTS_CTX
*xctx
= EVP_C_DATA(EVP_AES_XTS_CTX
,ctx
);
3547 if (xctx
->xts
.key1
== NULL
3548 || xctx
->xts
.key2
== NULL
3551 || len
< AES_BLOCK_SIZE
)
3555 * Impose a limit of 2^20 blocks per data unit as specifed by
3556 * IEEE Std 1619-2018. The earlier and obsolete IEEE Std 1619-2007
3557 * indicated that this was a SHOULD NOT rather than a MUST NOT.
3558 * NIST SP 800-38E mandates the same limit.
3560 if (len
> XTS_MAX_BLOCKS_PER_DATA_UNIT
* AES_BLOCK_SIZE
) {
3561 EVPerr(EVP_F_AES_XTS_CIPHER
, EVP_R_XTS_DATA_UNIT_IS_TOO_LARGE
);
3566 (*xctx
->stream
) (in
, out
, len
,
3567 xctx
->xts
.key1
, xctx
->xts
.key2
,
3568 EVP_CIPHER_CTX_iv_noconst(ctx
));
3569 else if (CRYPTO_xts128_encrypt(&xctx
->xts
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3571 EVP_CIPHER_CTX_encrypting(ctx
)))
3576 #define aes_xts_cleanup NULL
3578 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3579 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3580 | EVP_CIPH_CUSTOM_COPY)
3582 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 16, xts
, XTS
, XTS_FLAGS
)
3583 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 16, xts
, XTS
, XTS_FLAGS
)
3585 static int aes_ccm_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
3587 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,c
);
3596 cctx
->tls_aad_len
= -1;
3599 case EVP_CTRL_AEAD_TLS1_AAD
:
3600 /* Save the AAD for later use */
3601 if (arg
!= EVP_AEAD_TLS1_AAD_LEN
)
3603 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
3604 cctx
->tls_aad_len
= arg
;
3607 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] << 8
3608 | EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1];
3609 /* Correct length for explicit IV */
3610 if (len
< EVP_CCM_TLS_EXPLICIT_IV_LEN
)
3612 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3613 /* If decrypting correct for tag too */
3614 if (!EVP_CIPHER_CTX_encrypting(c
)) {
3619 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 2] = len
>> 8;
3620 EVP_CIPHER_CTX_buf_noconst(c
)[arg
- 1] = len
& 0xff;
3622 /* Extra padding: tag appended to record */
3625 case EVP_CTRL_CCM_SET_IV_FIXED
:
3626 /* Sanity check length */
3627 if (arg
!= EVP_CCM_TLS_FIXED_IV_LEN
)
3629 /* Just copy to first part of IV */
3630 memcpy(EVP_CIPHER_CTX_iv_noconst(c
), ptr
, arg
);
3633 case EVP_CTRL_AEAD_SET_IVLEN
:
3636 case EVP_CTRL_CCM_SET_L
:
3637 if (arg
< 2 || arg
> 8)
3642 case EVP_CTRL_AEAD_SET_TAG
:
3643 if ((arg
& 1) || arg
< 4 || arg
> 16)
3645 if (EVP_CIPHER_CTX_encrypting(c
) && ptr
)
3649 memcpy(EVP_CIPHER_CTX_buf_noconst(c
), ptr
, arg
);
3654 case EVP_CTRL_AEAD_GET_TAG
:
3655 if (!EVP_CIPHER_CTX_encrypting(c
) || !cctx
->tag_set
)
3657 if (!CRYPTO_ccm128_tag(&cctx
->ccm
, ptr
, (size_t)arg
))
3666 EVP_CIPHER_CTX
*out
= ptr
;
3667 EVP_AES_CCM_CTX
*cctx_out
= EVP_C_DATA(EVP_AES_CCM_CTX
,out
);
3668 if (cctx
->ccm
.key
) {
3669 if (cctx
->ccm
.key
!= &cctx
->ks
)
3671 cctx_out
->ccm
.key
= &cctx_out
->ks
;
3682 static int aes_ccm_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3683 const unsigned char *iv
, int enc
)
3685 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3690 #ifdef HWAES_CAPABLE
3691 if (HWAES_CAPABLE
) {
3692 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3695 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3696 &cctx
->ks
, (block128_f
) HWAES_encrypt
);
3702 #ifdef VPAES_CAPABLE
3703 if (VPAES_CAPABLE
) {
3704 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3706 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3707 &cctx
->ks
, (block128_f
) vpaes_encrypt
);
3713 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3715 CRYPTO_ccm128_init(&cctx
->ccm
, cctx
->M
, cctx
->L
,
3716 &cctx
->ks
, (block128_f
) AES_encrypt
);
3721 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, 15 - cctx
->L
);
3727 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3728 const unsigned char *in
, size_t len
)
3730 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3731 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
3732 /* Encrypt/decrypt must be performed in place */
3733 if (out
!= in
|| len
< (EVP_CCM_TLS_EXPLICIT_IV_LEN
+ (size_t)cctx
->M
))
3735 /* If encrypting set explicit IV from sequence number (start of AAD) */
3736 if (EVP_CIPHER_CTX_encrypting(ctx
))
3737 memcpy(out
, EVP_CIPHER_CTX_buf_noconst(ctx
),
3738 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
3739 /* Get rest of IV from explicit IV */
3740 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
) + EVP_CCM_TLS_FIXED_IV_LEN
, in
,
3741 EVP_CCM_TLS_EXPLICIT_IV_LEN
);
3742 /* Correct length value */
3743 len
-= EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
3744 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
), 15 - cctx
->L
,
3748 CRYPTO_ccm128_aad(ccm
, EVP_CIPHER_CTX_buf_noconst(ctx
), cctx
->tls_aad_len
);
3749 /* Fix buffer to point to payload */
3750 in
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3751 out
+= EVP_CCM_TLS_EXPLICIT_IV_LEN
;
3752 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3753 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
3755 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
3757 if (!CRYPTO_ccm128_tag(ccm
, out
+ len
, cctx
->M
))
3759 return len
+ EVP_CCM_TLS_EXPLICIT_IV_LEN
+ cctx
->M
;
3761 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
3763 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
3764 unsigned char tag
[16];
3765 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
3766 if (!CRYPTO_memcmp(tag
, in
+ len
, cctx
->M
))
3770 OPENSSL_cleanse(out
, len
);
3775 static int aes_ccm_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3776 const unsigned char *in
, size_t len
)
3778 EVP_AES_CCM_CTX
*cctx
= EVP_C_DATA(EVP_AES_CCM_CTX
,ctx
);
3779 CCM128_CONTEXT
*ccm
= &cctx
->ccm
;
3780 /* If not set up, return error */
3784 if (cctx
->tls_aad_len
>= 0)
3785 return aes_ccm_tls_cipher(ctx
, out
, in
, len
);
3787 /* EVP_*Final() doesn't return any data */
3788 if (in
== NULL
&& out
!= NULL
)
3794 if (!EVP_CIPHER_CTX_encrypting(ctx
) && !cctx
->tag_set
)
3798 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3804 /* If have AAD need message length */
3805 if (!cctx
->len_set
&& len
)
3807 CRYPTO_ccm128_aad(ccm
, in
, len
);
3810 /* If not set length yet do it */
3811 if (!cctx
->len_set
) {
3812 if (CRYPTO_ccm128_setiv(ccm
, EVP_CIPHER_CTX_iv_noconst(ctx
),
3817 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3818 if (cctx
->str
? CRYPTO_ccm128_encrypt_ccm64(ccm
, in
, out
, len
,
3820 CRYPTO_ccm128_encrypt(ccm
, in
, out
, len
))
3826 if (cctx
->str
? !CRYPTO_ccm128_decrypt_ccm64(ccm
, in
, out
, len
,
3828 !CRYPTO_ccm128_decrypt(ccm
, in
, out
, len
)) {
3829 unsigned char tag
[16];
3830 if (CRYPTO_ccm128_tag(ccm
, tag
, cctx
->M
)) {
3831 if (!CRYPTO_memcmp(tag
, EVP_CIPHER_CTX_buf_noconst(ctx
),
3837 OPENSSL_cleanse(out
, len
);
3845 #define aes_ccm_cleanup NULL
3847 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 12, ccm
, CCM
,
3848 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3849 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 12, ccm
, CCM
,
3850 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3851 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 12, ccm
, CCM
,
3852 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
3859 /* Indicates if IV has been set */
3863 static int aes_wrap_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
3864 const unsigned char *iv
, int enc
)
3866 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
3870 if (EVP_CIPHER_CTX_encrypting(ctx
))
3871 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3874 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
3880 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx
), iv
, EVP_CIPHER_CTX_iv_length(ctx
));
3881 wctx
->iv
= EVP_CIPHER_CTX_iv_noconst(ctx
);
3886 static int aes_wrap_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
3887 const unsigned char *in
, size_t inlen
)
3889 EVP_AES_WRAP_CTX
*wctx
= EVP_C_DATA(EVP_AES_WRAP_CTX
,ctx
);
3891 /* AES wrap with padding has IV length of 4, without padding 8 */
3892 int pad
= EVP_CIPHER_CTX_iv_length(ctx
) == 4;
3893 /* No final operation so always return zero length */
3896 /* Input length must always be non-zero */
3899 /* If decrypting need at least 16 bytes and multiple of 8 */
3900 if (!EVP_CIPHER_CTX_encrypting(ctx
) && (inlen
< 16 || inlen
& 0x7))
3902 /* If not padding input must be multiple of 8 */
3903 if (!pad
&& inlen
& 0x7)
3905 if (is_partially_overlapping(out
, in
, inlen
)) {
3906 EVPerr(EVP_F_AES_WRAP_CIPHER
, EVP_R_PARTIALLY_OVERLAPPING
);
3910 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
3911 /* If padding round up to multiple of 8 */
3913 inlen
= (inlen
+ 7) / 8 * 8;
3918 * If not padding output will be exactly 8 bytes smaller than
3919 * input. If padding it will be at least 8 bytes smaller but we
3920 * don't know how much.
3926 if (EVP_CIPHER_CTX_encrypting(ctx
))
3927 rv
= CRYPTO_128_wrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
3929 (block128_f
) AES_encrypt
);
3931 rv
= CRYPTO_128_unwrap_pad(&wctx
->ks
.ks
, wctx
->iv
,
3933 (block128_f
) AES_decrypt
);
3935 if (EVP_CIPHER_CTX_encrypting(ctx
))
3936 rv
= CRYPTO_128_wrap(&wctx
->ks
.ks
, wctx
->iv
,
3937 out
, in
, inlen
, (block128_f
) AES_encrypt
);
3939 rv
= CRYPTO_128_unwrap(&wctx
->ks
.ks
, wctx
->iv
,
3940 out
, in
, inlen
, (block128_f
) AES_decrypt
);
3942 return rv
? (int)rv
: -1;
3945 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3946 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3947 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3949 static const EVP_CIPHER aes_128_wrap
= {
3951 8, 16, 8, WRAP_FLAGS
,
3952 aes_wrap_init_key
, aes_wrap_cipher
,
3954 sizeof(EVP_AES_WRAP_CTX
),
3955 NULL
, NULL
, NULL
, NULL
3958 const EVP_CIPHER
*EVP_aes_128_wrap(void)
3960 return &aes_128_wrap
;
3963 static const EVP_CIPHER aes_192_wrap
= {
3965 8, 24, 8, WRAP_FLAGS
,
3966 aes_wrap_init_key
, aes_wrap_cipher
,
3968 sizeof(EVP_AES_WRAP_CTX
),
3969 NULL
, NULL
, NULL
, NULL
3972 const EVP_CIPHER
*EVP_aes_192_wrap(void)
3974 return &aes_192_wrap
;
3977 static const EVP_CIPHER aes_256_wrap
= {
3979 8, 32, 8, WRAP_FLAGS
,
3980 aes_wrap_init_key
, aes_wrap_cipher
,
3982 sizeof(EVP_AES_WRAP_CTX
),
3983 NULL
, NULL
, NULL
, NULL
3986 const EVP_CIPHER
*EVP_aes_256_wrap(void)
3988 return &aes_256_wrap
;
3991 static const EVP_CIPHER aes_128_wrap_pad
= {
3992 NID_id_aes128_wrap_pad
,
3993 8, 16, 4, WRAP_FLAGS
,
3994 aes_wrap_init_key
, aes_wrap_cipher
,
3996 sizeof(EVP_AES_WRAP_CTX
),
3997 NULL
, NULL
, NULL
, NULL
4000 const EVP_CIPHER
*EVP_aes_128_wrap_pad(void)
4002 return &aes_128_wrap_pad
;
4005 static const EVP_CIPHER aes_192_wrap_pad
= {
4006 NID_id_aes192_wrap_pad
,
4007 8, 24, 4, WRAP_FLAGS
,
4008 aes_wrap_init_key
, aes_wrap_cipher
,
4010 sizeof(EVP_AES_WRAP_CTX
),
4011 NULL
, NULL
, NULL
, NULL
4014 const EVP_CIPHER
*EVP_aes_192_wrap_pad(void)
4016 return &aes_192_wrap_pad
;
4019 static const EVP_CIPHER aes_256_wrap_pad
= {
4020 NID_id_aes256_wrap_pad
,
4021 8, 32, 4, WRAP_FLAGS
,
4022 aes_wrap_init_key
, aes_wrap_cipher
,
4024 sizeof(EVP_AES_WRAP_CTX
),
4025 NULL
, NULL
, NULL
, NULL
4028 const EVP_CIPHER
*EVP_aes_256_wrap_pad(void)
4030 return &aes_256_wrap_pad
;
4033 #ifndef OPENSSL_NO_OCB
4034 static int aes_ocb_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
4036 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
4037 EVP_CIPHER_CTX
*newc
;
4038 EVP_AES_OCB_CTX
*new_octx
;
4044 octx
->ivlen
= EVP_CIPHER_CTX_iv_length(c
);
4045 octx
->iv
= EVP_CIPHER_CTX_iv_noconst(c
);
4047 octx
->data_buf_len
= 0;
4048 octx
->aad_buf_len
= 0;
4051 case EVP_CTRL_AEAD_SET_IVLEN
:
4052 /* IV len must be 1 to 15 */
4053 if (arg
<= 0 || arg
> 15)
4059 case EVP_CTRL_AEAD_SET_TAG
:
4061 /* Tag len must be 0 to 16 */
4062 if (arg
< 0 || arg
> 16)
4068 if (arg
!= octx
->taglen
|| EVP_CIPHER_CTX_encrypting(c
))
4070 memcpy(octx
->tag
, ptr
, arg
);
4073 case EVP_CTRL_AEAD_GET_TAG
:
4074 if (arg
!= octx
->taglen
|| !EVP_CIPHER_CTX_encrypting(c
))
4077 memcpy(ptr
, octx
->tag
, arg
);
4081 newc
= (EVP_CIPHER_CTX
*)ptr
;
4082 new_octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,newc
);
4083 return CRYPTO_ocb128_copy_ctx(&new_octx
->ocb
, &octx
->ocb
,
4084 &new_octx
->ksenc
.ks
,
4085 &new_octx
->ksdec
.ks
);
4093 # ifdef HWAES_CAPABLE
4094 # ifdef HWAES_ocb_encrypt
4095 void HWAES_ocb_encrypt(const unsigned char *in
, unsigned char *out
,
4096 size_t blocks
, const void *key
,
4097 size_t start_block_num
,
4098 unsigned char offset_i
[16],
4099 const unsigned char L_
[][16],
4100 unsigned char checksum
[16]);
4102 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
4104 # ifdef HWAES_ocb_decrypt
4105 void HWAES_ocb_decrypt(const unsigned char *in
, unsigned char *out
,
4106 size_t blocks
, const void *key
,
4107 size_t start_block_num
,
4108 unsigned char offset_i
[16],
4109 const unsigned char L_
[][16],
4110 unsigned char checksum
[16]);
4112 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
4116 static int aes_ocb_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
4117 const unsigned char *iv
, int enc
)
4119 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
4125 * We set both the encrypt and decrypt key here because decrypt
4126 * needs both. We could possibly optimise to remove setting the
4127 * decrypt for an encryption operation.
4129 # ifdef HWAES_CAPABLE
4130 if (HWAES_CAPABLE
) {
4131 HWAES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4133 HWAES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4135 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4136 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4137 (block128_f
) HWAES_encrypt
,
4138 (block128_f
) HWAES_decrypt
,
4139 enc
? HWAES_ocb_encrypt
4140 : HWAES_ocb_decrypt
))
4145 # ifdef VPAES_CAPABLE
4146 if (VPAES_CAPABLE
) {
4147 vpaes_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4149 vpaes_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4151 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4152 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4153 (block128_f
) vpaes_encrypt
,
4154 (block128_f
) vpaes_decrypt
,
4160 AES_set_encrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4162 AES_set_decrypt_key(key
, EVP_CIPHER_CTX_key_length(ctx
) * 8,
4164 if (!CRYPTO_ocb128_init(&octx
->ocb
,
4165 &octx
->ksenc
.ks
, &octx
->ksdec
.ks
,
4166 (block128_f
) AES_encrypt
,
4167 (block128_f
) AES_decrypt
,
4174 * If we have an iv we can set it directly, otherwise use saved IV.
4176 if (iv
== NULL
&& octx
->iv_set
)
4179 if (CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
)
4186 /* If key set use IV, otherwise copy */
4188 CRYPTO_ocb128_setiv(&octx
->ocb
, iv
, octx
->ivlen
, octx
->taglen
);
4190 memcpy(octx
->iv
, iv
, octx
->ivlen
);
4196 static int aes_ocb_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
4197 const unsigned char *in
, size_t len
)
4201 int written_len
= 0;
4202 size_t trailing_len
;
4203 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,ctx
);
4205 /* If IV or Key not set then return error */
4214 * Need to ensure we are only passing full blocks to low level OCB
4215 * routines. We do it here rather than in EVP_EncryptUpdate/
4216 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4217 * and those routines don't support that
4220 /* Are we dealing with AAD or normal data here? */
4222 buf
= octx
->aad_buf
;
4223 buf_len
= &(octx
->aad_buf_len
);
4225 buf
= octx
->data_buf
;
4226 buf_len
= &(octx
->data_buf_len
);
4228 if (is_partially_overlapping(out
+ *buf_len
, in
, len
)) {
4229 EVPerr(EVP_F_AES_OCB_CIPHER
, EVP_R_PARTIALLY_OVERLAPPING
);
4235 * If we've got a partially filled buffer from a previous call then
4236 * use that data first
4239 unsigned int remaining
;
4241 remaining
= AES_BLOCK_SIZE
- (*buf_len
);
4242 if (remaining
> len
) {
4243 memcpy(buf
+ (*buf_len
), in
, len
);
4247 memcpy(buf
+ (*buf_len
), in
, remaining
);
4250 * If we get here we've filled the buffer, so process it
4255 if (!CRYPTO_ocb128_aad(&octx
->ocb
, buf
, AES_BLOCK_SIZE
))
4257 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4258 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, buf
, out
,
4262 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, buf
, out
,
4266 written_len
= AES_BLOCK_SIZE
;
4269 out
+= AES_BLOCK_SIZE
;
4272 /* Do we have a partial block to handle at the end? */
4273 trailing_len
= len
% AES_BLOCK_SIZE
;
4276 * If we've got some full blocks to handle, then process these first
4278 if (len
!= trailing_len
) {
4280 if (!CRYPTO_ocb128_aad(&octx
->ocb
, in
, len
- trailing_len
))
4282 } else if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4283 if (!CRYPTO_ocb128_encrypt
4284 (&octx
->ocb
, in
, out
, len
- trailing_len
))
4287 if (!CRYPTO_ocb128_decrypt
4288 (&octx
->ocb
, in
, out
, len
- trailing_len
))
4291 written_len
+= len
- trailing_len
;
4292 in
+= len
- trailing_len
;
4295 /* Handle any trailing partial block */
4296 if (trailing_len
> 0) {
4297 memcpy(buf
, in
, trailing_len
);
4298 *buf_len
= trailing_len
;
4304 * First of all empty the buffer of any partial block that we might
4305 * have been provided - both for data and AAD
4307 if (octx
->data_buf_len
> 0) {
4308 if (EVP_CIPHER_CTX_encrypting(ctx
)) {
4309 if (!CRYPTO_ocb128_encrypt(&octx
->ocb
, octx
->data_buf
, out
,
4310 octx
->data_buf_len
))
4313 if (!CRYPTO_ocb128_decrypt(&octx
->ocb
, octx
->data_buf
, out
,
4314 octx
->data_buf_len
))
4317 written_len
= octx
->data_buf_len
;
4318 octx
->data_buf_len
= 0;
4320 if (octx
->aad_buf_len
> 0) {
4321 if (!CRYPTO_ocb128_aad
4322 (&octx
->ocb
, octx
->aad_buf
, octx
->aad_buf_len
))
4324 octx
->aad_buf_len
= 0;
4326 /* If decrypting then verify */
4327 if (!EVP_CIPHER_CTX_encrypting(ctx
)) {
4328 if (octx
->taglen
< 0)
4330 if (CRYPTO_ocb128_finish(&octx
->ocb
,
4331 octx
->tag
, octx
->taglen
) != 0)
4336 /* If encrypting then just get the tag */
4337 if (CRYPTO_ocb128_tag(&octx
->ocb
, octx
->tag
, 16) != 1)
4339 /* Don't reuse the IV */
4345 static int aes_ocb_cleanup(EVP_CIPHER_CTX
*c
)
4347 EVP_AES_OCB_CTX
*octx
= EVP_C_DATA(EVP_AES_OCB_CTX
,c
);
4348 CRYPTO_ocb128_cleanup(&octx
->ocb
);
4352 BLOCK_CIPHER_custom(NID_aes
, 128, 16, 12, ocb
, OCB
,
4353 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4354 BLOCK_CIPHER_custom(NID_aes
, 192, 16, 12, ocb
, OCB
,
4355 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4356 BLOCK_CIPHER_custom(NID_aes
, 256, 16, 12, ocb
, OCB
,
4357 EVP_CIPH_FLAG_AEAD_CIPHER
| CUSTOM_FLAGS
)
4358 #endif /* OPENSSL_NO_OCB */
4361 #ifndef OPENSSL_NO_SIV
4363 typedef SIV128_CONTEXT EVP_AES_SIV_CTX
;
4365 #define aesni_siv_init_key aes_siv_init_key
4366 static int aes_siv_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
4367 const unsigned char *iv
, int enc
)
4369 const EVP_CIPHER
*ctr
;
4370 const EVP_CIPHER
*cbc
;
4371 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, ctx
);
4372 int klen
= EVP_CIPHER_CTX_key_length(ctx
) / 2;
4379 cbc
= EVP_aes_128_cbc();
4380 ctr
= EVP_aes_128_ctr();
4383 cbc
= EVP_aes_192_cbc();
4384 ctr
= EVP_aes_192_ctr();
4387 cbc
= EVP_aes_256_cbc();
4388 ctr
= EVP_aes_256_ctr();
4394 /* klen is the length of the underlying cipher, not the input key,
4395 which should be twice as long */
4396 return CRYPTO_siv128_init(sctx
, key
, klen
, cbc
, ctr
);
4399 #define aesni_siv_cipher aes_siv_cipher
4400 static int aes_siv_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
4401 const unsigned char *in
, size_t len
)
4403 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, ctx
);
4405 /* EncryptFinal or DecryptFinal */
4407 return CRYPTO_siv128_finish(sctx
);
4409 /* Deal with associated data */
4411 return CRYPTO_siv128_aad(sctx
, in
, len
);
4413 if (EVP_CIPHER_CTX_encrypting(ctx
))
4414 return CRYPTO_siv128_encrypt(sctx
, in
, out
, len
);
4416 return CRYPTO_siv128_decrypt(sctx
, in
, out
, len
);
4419 #define aesni_siv_cleanup aes_siv_cleanup
4420 static int aes_siv_cleanup(EVP_CIPHER_CTX
*c
)
4422 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, c
);
4424 return CRYPTO_siv128_cleanup(sctx
);
4428 #define aesni_siv_ctrl aes_siv_ctrl
4429 static int aes_siv_ctrl(EVP_CIPHER_CTX
*c
, int type
, int arg
, void *ptr
)
4431 SIV128_CONTEXT
*sctx
= EVP_C_DATA(SIV128_CONTEXT
, c
);
4432 SIV128_CONTEXT
*sctx_out
;
4436 return CRYPTO_siv128_cleanup(sctx
);
4438 case EVP_CTRL_SET_SPEED
:
4439 return CRYPTO_siv128_speed(sctx
, arg
);
4441 case EVP_CTRL_AEAD_SET_TAG
:
4442 if (!EVP_CIPHER_CTX_encrypting(c
))
4443 return CRYPTO_siv128_set_tag(sctx
, ptr
, arg
);
4446 case EVP_CTRL_AEAD_GET_TAG
:
4447 if (!EVP_CIPHER_CTX_encrypting(c
))
4449 return CRYPTO_siv128_get_tag(sctx
, ptr
, arg
);
4452 sctx_out
= EVP_C_DATA(SIV128_CONTEXT
, (EVP_CIPHER_CTX
*)ptr
);
4453 return CRYPTO_siv128_copy_ctx(sctx_out
, sctx
);
4461 #define SIV_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
4462 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
4463 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_COPY \
4464 | EVP_CIPH_CTRL_INIT)
4466 BLOCK_CIPHER_custom(NID_aes
, 128, 1, 0, siv
, SIV
, SIV_FLAGS
)
4467 BLOCK_CIPHER_custom(NID_aes
, 192, 1, 0, siv
, SIV
, SIV_FLAGS
)
4468 BLOCK_CIPHER_custom(NID_aes
, 256, 1, 0, siv
, SIV
, SIV_FLAGS
)