2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
11 #include <openssl/crypto.h>
12 #include <openssl/evp.h>
13 #include <openssl/err.h>
16 #include <openssl/aes.h>
17 #include "internal/evp_int.h"
18 #include "modes_lcl.h"
19 #include <openssl/rand.h>
38 } ks; /* AES key schedule to use */
39 int key_set; /* Set if key initialised */
40 int iv_set; /* Set if an iv is set */
42 unsigned char *iv; /* Temporary IV store */
43 int ivlen; /* IV length */
45 int iv_gen; /* It is OK to generate IVs */
46 int tls_aad_len; /* TLS AAD length */
54 } ks1, ks2; /* AES key schedules to use */
56 void (*stream) (const unsigned char *in,
57 unsigned char *out, size_t length,
58 const AES_KEY *key1, const AES_KEY *key2,
59 const unsigned char iv[16]);
66 } ks; /* AES key schedule to use */
67 int key_set; /* Set if key initialised */
68 int iv_set; /* Set if an iv is set */
69 int tag_set; /* Set if tag is valid */
70 int len_set; /* Set if message length set */
71 int L, M; /* L and M parameters from RFC3610 */
72 int tls_aad_len; /* TLS AAD length */
77 #ifndef OPENSSL_NO_OCB
82 } ksenc; /* AES key schedule to use for encryption */
86 } ksdec; /* AES key schedule to use for decryption */
87 int key_set; /* Set if key initialised */
88 int iv_set; /* Set if an iv is set */
90 unsigned char *iv; /* Temporary IV store */
91 unsigned char tag[16];
92 unsigned char data_buf[16]; /* Store partial data blocks */
93 unsigned char aad_buf[16]; /* Store partial AAD blocks */
96 int ivlen; /* IV length */
101 #define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
104 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
106 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
109 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
111 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
114 void vpaes_cbc_encrypt(const unsigned char *in,
117 const AES_KEY *key, unsigned char *ivec, int enc);
120 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
121 size_t length, const AES_KEY *key,
122 unsigned char ivec[16], int enc);
123 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
124 size_t len, const AES_KEY *key,
125 const unsigned char ivec[16]);
126 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
127 size_t len, const AES_KEY *key1,
128 const AES_KEY *key2, const unsigned char iv[16]);
129 void bsaes_xts_decrypt(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]);
134 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
135 size_t blocks, const AES_KEY *key,
136 const unsigned char ivec[AES_BLOCK_SIZE]);
139 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
140 const AES_KEY *key1, const AES_KEY *key2,
141 const unsigned char iv[16]);
142 void AES_xts_decrypt(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]);
147 /* increment counter (64-bit int) by 1 */
148 static void ctr64_inc(unsigned char *counter)
163 #if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
164 # include "ppc_arch.h"
166 # define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
168 # define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
169 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
170 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
171 # define HWAES_encrypt aes_p8_encrypt
172 # define HWAES_decrypt aes_p8_decrypt
173 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
174 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
175 # define HWAES_xts_encrypt aes_p8_xts_encrypt
176 # define HWAES_xts_decrypt aes_p8_xts_decrypt
179 #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
180 ((defined(__i386) || defined(__i386__) || \
181 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
182 defined(__x86_64) || defined(__x86_64__) || \
183 defined(_M_AMD64) || defined(_M_X64) )
185 extern unsigned int OPENSSL_ia32cap_P[];
188 # define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
191 # define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
196 # define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
198 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
200 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
203 void aesni_encrypt(const unsigned char *in, unsigned char *out,
205 void aesni_decrypt(const unsigned char *in, unsigned char *out,
208 void aesni_ecb_encrypt(const unsigned char *in,
210 size_t length, const AES_KEY *key, int enc);
211 void aesni_cbc_encrypt(const unsigned char *in,
214 const AES_KEY *key, unsigned char *ivec, int enc);
216 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
219 const void *key, const unsigned char *ivec);
221 void aesni_xts_encrypt(const unsigned char *in,
224 const AES_KEY *key1, const AES_KEY *key2,
225 const unsigned char iv[16]);
227 void aesni_xts_decrypt(const unsigned char *in,
230 const AES_KEY *key1, const AES_KEY *key2,
231 const unsigned char iv[16]);
233 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
237 const unsigned char ivec[16],
238 unsigned char cmac[16]);
240 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
244 const unsigned char ivec[16],
245 unsigned char cmac[16]);
247 # if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
248 size_t aesni_gcm_encrypt(const unsigned char *in,
251 const void *key, unsigned char ivec[16], u64 *Xi);
252 # define AES_gcm_encrypt aesni_gcm_encrypt
253 size_t aesni_gcm_decrypt(const unsigned char *in,
256 const void *key, unsigned char ivec[16], u64 *Xi);
257 # define AES_gcm_decrypt aesni_gcm_decrypt
258 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
260 # define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
261 gctx->gcm.ghash==gcm_ghash_avx)
262 # define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
263 gctx->gcm.ghash==gcm_ghash_avx)
264 # undef AES_GCM_ASM2 /* minor size optimization */
267 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
268 const unsigned char *iv, int enc)
271 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
273 mode = EVP_CIPHER_CTX_mode(ctx);
274 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
276 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
278 dat->block = (block128_f) aesni_decrypt;
279 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
280 (cbc128_f) aesni_cbc_encrypt : NULL;
282 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
284 dat->block = (block128_f) aesni_encrypt;
285 if (mode == EVP_CIPH_CBC_MODE)
286 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
287 else if (mode == EVP_CIPH_CTR_MODE)
288 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
290 dat->stream.cbc = NULL;
294 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
301 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
302 const unsigned char *in, size_t len)
304 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
305 EVP_CIPHER_CTX_iv_noconst(ctx),
306 EVP_CIPHER_CTX_encrypting(ctx));
311 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
312 const unsigned char *in, size_t len)
314 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
319 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
320 EVP_CIPHER_CTX_encrypting(ctx));
325 # define aesni_ofb_cipher aes_ofb_cipher
326 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
327 const unsigned char *in, size_t len);
329 # define aesni_cfb_cipher aes_cfb_cipher
330 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
331 const unsigned char *in, size_t len);
333 # define aesni_cfb8_cipher aes_cfb8_cipher
334 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
335 const unsigned char *in, size_t len);
337 # define aesni_cfb1_cipher aes_cfb1_cipher
338 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
339 const unsigned char *in, size_t len);
341 # define aesni_ctr_cipher aes_ctr_cipher
342 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
343 const unsigned char *in, size_t len);
345 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
346 const unsigned char *iv, int enc)
348 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
352 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
354 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
355 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
357 * If we have an iv can set it directly, otherwise use saved IV.
359 if (iv == NULL && gctx->iv_set)
362 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
367 /* If key set use IV, otherwise copy */
369 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
371 memcpy(gctx->iv, iv, gctx->ivlen);
378 # define aesni_gcm_cipher aes_gcm_cipher
379 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
380 const unsigned char *in, size_t len);
382 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
383 const unsigned char *iv, int enc)
385 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
390 /* key_len is two AES keys */
392 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
394 xctx->xts.block1 = (block128_f) aesni_encrypt;
395 xctx->stream = aesni_xts_encrypt;
397 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
399 xctx->xts.block1 = (block128_f) aesni_decrypt;
400 xctx->stream = aesni_xts_decrypt;
403 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
404 EVP_CIPHER_CTX_key_length(ctx) * 4,
406 xctx->xts.block2 = (block128_f) aesni_encrypt;
408 xctx->xts.key1 = &xctx->ks1;
412 xctx->xts.key2 = &xctx->ks2;
413 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
419 # define aesni_xts_cipher aes_xts_cipher
420 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
421 const unsigned char *in, size_t len);
423 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
424 const unsigned char *iv, int enc)
426 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
430 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
432 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
433 &cctx->ks, (block128_f) aesni_encrypt);
434 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
435 (ccm128_f) aesni_ccm64_decrypt_blocks;
439 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
445 # define aesni_ccm_cipher aes_ccm_cipher
446 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
447 const unsigned char *in, size_t len);
449 # ifndef OPENSSL_NO_OCB
450 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
451 size_t blocks, const void *key,
452 size_t start_block_num,
453 unsigned char offset_i[16],
454 const unsigned char L_[][16],
455 unsigned char checksum[16]);
456 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
457 size_t blocks, const void *key,
458 size_t start_block_num,
459 unsigned char offset_i[16],
460 const unsigned char L_[][16],
461 unsigned char checksum[16]);
463 static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
464 const unsigned char *iv, int enc)
466 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
472 * We set both the encrypt and decrypt key here because decrypt
473 * needs both. We could possibly optimise to remove setting the
474 * decrypt for an encryption operation.
476 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
478 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
480 if (!CRYPTO_ocb128_init(&octx->ocb,
481 &octx->ksenc.ks, &octx->ksdec.ks,
482 (block128_f) aesni_encrypt,
483 (block128_f) aesni_decrypt,
484 enc ? aesni_ocb_encrypt
485 : aesni_ocb_decrypt))
491 * If we have an iv we can set it directly, otherwise use saved IV.
493 if (iv == NULL && octx->iv_set)
496 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
503 /* If key set use IV, otherwise copy */
505 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
507 memcpy(octx->iv, iv, octx->ivlen);
513 # define aesni_ocb_cipher aes_ocb_cipher
514 static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
515 const unsigned char *in, size_t len);
516 # endif /* OPENSSL_NO_OCB */
518 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
519 static const EVP_CIPHER aesni_##keylen##_##mode = { \
520 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
521 flags|EVP_CIPH_##MODE##_MODE, \
523 aesni_##mode##_cipher, \
525 sizeof(EVP_AES_KEY), \
526 NULL,NULL,NULL,NULL }; \
527 static const EVP_CIPHER aes_##keylen##_##mode = { \
528 nid##_##keylen##_##nmode,blocksize, \
530 flags|EVP_CIPH_##MODE##_MODE, \
532 aes_##mode##_cipher, \
534 sizeof(EVP_AES_KEY), \
535 NULL,NULL,NULL,NULL }; \
536 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
537 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
539 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
540 static const EVP_CIPHER aesni_##keylen##_##mode = { \
541 nid##_##keylen##_##mode,blocksize, \
542 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
543 flags|EVP_CIPH_##MODE##_MODE, \
544 aesni_##mode##_init_key, \
545 aesni_##mode##_cipher, \
546 aes_##mode##_cleanup, \
547 sizeof(EVP_AES_##MODE##_CTX), \
548 NULL,NULL,aes_##mode##_ctrl,NULL }; \
549 static const EVP_CIPHER aes_##keylen##_##mode = { \
550 nid##_##keylen##_##mode,blocksize, \
551 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
552 flags|EVP_CIPH_##MODE##_MODE, \
553 aes_##mode##_init_key, \
554 aes_##mode##_cipher, \
555 aes_##mode##_cleanup, \
556 sizeof(EVP_AES_##MODE##_CTX), \
557 NULL,NULL,aes_##mode##_ctrl,NULL }; \
558 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
559 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
561 #elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
563 # include "sparc_arch.h"
565 extern unsigned int OPENSSL_sparcv9cap_P[];
568 * Initial Fujitsu SPARC64 X support
570 # define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
571 # define HWAES_set_encrypt_key aes_fx_set_encrypt_key
572 # define HWAES_set_decrypt_key aes_fx_set_decrypt_key
573 # define HWAES_encrypt aes_fx_encrypt
574 # define HWAES_decrypt aes_fx_decrypt
575 # define HWAES_cbc_encrypt aes_fx_cbc_encrypt
576 # define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
578 # define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
580 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
581 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
582 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
584 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
587 * Key-length specific subroutines were chosen for following reason.
588 * Each SPARC T4 core can execute up to 8 threads which share core's
589 * resources. Loading as much key material to registers allows to
590 * minimize references to shared memory interface, as well as amount
591 * of instructions in inner loops [much needed on T4]. But then having
592 * non-key-length specific routines would require conditional branches
593 * either in inner loops or on subroutines' entries. Former is hardly
594 * acceptable, while latter means code size increase to size occupied
595 * by multiple key-length specific subroutines, so why fight?
597 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
598 size_t len, const AES_KEY *key,
599 unsigned char *ivec);
600 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
601 size_t len, const AES_KEY *key,
602 unsigned char *ivec);
603 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
604 size_t len, const AES_KEY *key,
605 unsigned char *ivec);
606 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
607 size_t len, const AES_KEY *key,
608 unsigned char *ivec);
609 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
610 size_t len, const AES_KEY *key,
611 unsigned char *ivec);
612 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
613 size_t len, const AES_KEY *key,
614 unsigned char *ivec);
615 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
616 size_t blocks, const AES_KEY *key,
617 unsigned char *ivec);
618 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
619 size_t blocks, const AES_KEY *key,
620 unsigned char *ivec);
621 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
622 size_t blocks, const AES_KEY *key,
623 unsigned char *ivec);
624 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
625 size_t blocks, const AES_KEY *key1,
626 const AES_KEY *key2, const unsigned char *ivec);
627 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
628 size_t blocks, const AES_KEY *key1,
629 const AES_KEY *key2, const unsigned char *ivec);
630 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
631 size_t blocks, const AES_KEY *key1,
632 const AES_KEY *key2, const unsigned char *ivec);
633 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
634 size_t blocks, const AES_KEY *key1,
635 const AES_KEY *key2, const unsigned char *ivec);
637 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
638 const unsigned char *iv, int enc)
641 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
643 mode = EVP_CIPHER_CTX_mode(ctx);
644 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
645 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
648 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
649 dat->block = (block128_f) aes_t4_decrypt;
652 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
653 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
656 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
657 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
660 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
661 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
668 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
669 dat->block = (block128_f) aes_t4_encrypt;
672 if (mode == EVP_CIPH_CBC_MODE)
673 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
674 else if (mode == EVP_CIPH_CTR_MODE)
675 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
677 dat->stream.cbc = NULL;
680 if (mode == EVP_CIPH_CBC_MODE)
681 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
682 else if (mode == EVP_CIPH_CTR_MODE)
683 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
685 dat->stream.cbc = NULL;
688 if (mode == EVP_CIPH_CBC_MODE)
689 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
690 else if (mode == EVP_CIPH_CTR_MODE)
691 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
693 dat->stream.cbc = NULL;
701 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
708 # define aes_t4_cbc_cipher aes_cbc_cipher
709 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
710 const unsigned char *in, size_t len);
712 # define aes_t4_ecb_cipher aes_ecb_cipher
713 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
714 const unsigned char *in, size_t len);
716 # define aes_t4_ofb_cipher aes_ofb_cipher
717 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
718 const unsigned char *in, size_t len);
720 # define aes_t4_cfb_cipher aes_cfb_cipher
721 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
722 const unsigned char *in, size_t len);
724 # define aes_t4_cfb8_cipher aes_cfb8_cipher
725 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
726 const unsigned char *in, size_t len);
728 # define aes_t4_cfb1_cipher aes_cfb1_cipher
729 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
730 const unsigned char *in, size_t len);
732 # define aes_t4_ctr_cipher aes_ctr_cipher
733 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
734 const unsigned char *in, size_t len);
736 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
737 const unsigned char *iv, int enc)
739 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
743 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
744 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
745 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
746 (block128_f) aes_t4_encrypt);
749 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
752 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
755 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
761 * If we have an iv can set it directly, otherwise use saved IV.
763 if (iv == NULL && gctx->iv_set)
766 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
771 /* If key set use IV, otherwise copy */
773 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
775 memcpy(gctx->iv, iv, gctx->ivlen);
782 # define aes_t4_gcm_cipher aes_gcm_cipher
783 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
784 const unsigned char *in, size_t len);
786 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
787 const unsigned char *iv, int enc)
789 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
794 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
796 /* key_len is two AES keys */
798 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
799 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
802 xctx->stream = aes128_t4_xts_encrypt;
805 xctx->stream = aes256_t4_xts_encrypt;
811 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
813 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
816 xctx->stream = aes128_t4_xts_decrypt;
819 xctx->stream = aes256_t4_xts_decrypt;
826 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
827 EVP_CIPHER_CTX_key_length(ctx) * 4,
829 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
831 xctx->xts.key1 = &xctx->ks1;
835 xctx->xts.key2 = &xctx->ks2;
836 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
842 # define aes_t4_xts_cipher aes_xts_cipher
843 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
844 const unsigned char *in, size_t len);
846 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
847 const unsigned char *iv, int enc)
849 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
853 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
854 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
855 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
856 &cctx->ks, (block128_f) aes_t4_encrypt);
861 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
867 # define aes_t4_ccm_cipher aes_ccm_cipher
868 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
869 const unsigned char *in, size_t len);
871 # ifndef OPENSSL_NO_OCB
872 static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
873 const unsigned char *iv, int enc)
875 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
881 * We set both the encrypt and decrypt key here because decrypt
882 * needs both. We could possibly optimise to remove setting the
883 * decrypt for an encryption operation.
885 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
887 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
889 if (!CRYPTO_ocb128_init(&octx->ocb,
890 &octx->ksenc.ks, &octx->ksdec.ks,
891 (block128_f) aes_t4_encrypt,
892 (block128_f) aes_t4_decrypt,
899 * If we have an iv we can set it directly, otherwise use saved IV.
901 if (iv == NULL && octx->iv_set)
904 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
911 /* If key set use IV, otherwise copy */
913 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
915 memcpy(octx->iv, iv, octx->ivlen);
921 # define aes_t4_ocb_cipher aes_ocb_cipher
922 static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
923 const unsigned char *in, size_t len);
924 # endif /* OPENSSL_NO_OCB */
926 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
927 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
928 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
929 flags|EVP_CIPH_##MODE##_MODE, \
931 aes_t4_##mode##_cipher, \
933 sizeof(EVP_AES_KEY), \
934 NULL,NULL,NULL,NULL }; \
935 static const EVP_CIPHER aes_##keylen##_##mode = { \
936 nid##_##keylen##_##nmode,blocksize, \
938 flags|EVP_CIPH_##MODE##_MODE, \
940 aes_##mode##_cipher, \
942 sizeof(EVP_AES_KEY), \
943 NULL,NULL,NULL,NULL }; \
944 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
945 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
947 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
948 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
949 nid##_##keylen##_##mode,blocksize, \
950 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
951 flags|EVP_CIPH_##MODE##_MODE, \
952 aes_t4_##mode##_init_key, \
953 aes_t4_##mode##_cipher, \
954 aes_##mode##_cleanup, \
955 sizeof(EVP_AES_##MODE##_CTX), \
956 NULL,NULL,aes_##mode##_ctrl,NULL }; \
957 static const EVP_CIPHER aes_##keylen##_##mode = { \
958 nid##_##keylen##_##mode,blocksize, \
959 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
960 flags|EVP_CIPH_##MODE##_MODE, \
961 aes_##mode##_init_key, \
962 aes_##mode##_cipher, \
963 aes_##mode##_cleanup, \
964 sizeof(EVP_AES_##MODE##_CTX), \
965 NULL,NULL,aes_##mode##_ctrl,NULL }; \
966 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
967 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
969 #elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
973 # include "s390x_arch.h"
979 * KM-AES parameter block - begin
980 * (see z/Architecture Principles of Operation >= SA22-7832-06)
985 /* KM-AES parameter block - end */
994 * KMO-AES parameter block - begin
995 * (see z/Architecture Principles of Operation >= SA22-7832-08)
998 unsigned char cv[16];
1001 /* KMO-AES parameter block - end */
1006 } S390X_AES_OFB_CTX;
1012 * KMF-AES parameter block - begin
1013 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1016 unsigned char cv[16];
1017 unsigned char k[32];
1019 /* KMF-AES parameter block - end */
1024 } S390X_AES_CFB_CTX;
1030 * KMA-GCM-AES parameter block - begin
1031 * (see z/Architecture Principles of Operation >= SA22-7832-11)
1034 unsigned char reserved[12];
1040 unsigned long long g[2];
1041 unsigned char b[16];
1043 unsigned char h[16];
1044 unsigned long long taadl;
1045 unsigned long long tpcl;
1047 unsigned long long g[2];
1050 unsigned char k[32];
1052 /* KMA-GCM-AES parameter block - end */
1064 unsigned char ares[16];
1065 unsigned char mres[16];
1066 unsigned char kres[16];
1072 } S390X_AES_GCM_CTX;
1078 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1079 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1080 * rounds field is used to store the function code and that the key
1081 * schedule is not stored (if aes hardware support is detected).
1084 unsigned char pad[16];
1090 * KMAC-AES parameter block - begin
1091 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1095 unsigned long long g[2];
1096 unsigned char b[16];
1098 unsigned char k[32];
1100 /* KMAC-AES paramater block - end */
1103 unsigned long long g[2];
1104 unsigned char b[16];
1107 unsigned long long g[2];
1108 unsigned char b[16];
1111 unsigned long long blocks;
1120 unsigned char pad[140];
1124 } S390X_AES_CCM_CTX;
1126 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1127 # define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1129 /* Most modes of operation need km for partial block processing. */
1130 # define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1131 S390X_CAPBIT(S390X_AES_128))
1132 # define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1133 S390X_CAPBIT(S390X_AES_192))
1134 # define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1135 S390X_CAPBIT(S390X_AES_256))
1137 # define s390x_aes_init_key aes_init_key
1138 static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1139 const unsigned char *iv, int enc);
1141 # define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1142 # define S390X_aes_192_cbc_CAPABLE 1
1143 # define S390X_aes_256_cbc_CAPABLE 1
1144 # define S390X_AES_CBC_CTX EVP_AES_KEY
1146 # define s390x_aes_cbc_init_key aes_init_key
1148 # define s390x_aes_cbc_cipher aes_cbc_cipher
1149 static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1150 const unsigned char *in, size_t len);
1152 # define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1153 # define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1154 # define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1156 static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
1157 const unsigned char *key,
1158 const unsigned char *iv, int enc)
1160 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1161 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1163 cctx->fc = S390X_AES_FC(keylen);
1165 cctx->fc |= S390X_DECRYPT;
1167 memcpy(cctx->km.param.k, key, keylen);
1171 static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1172 const unsigned char *in, size_t len)
1174 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1176 s390x_km(in, len, out, cctx->fc, &cctx->km.param);
1180 # define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1181 (OPENSSL_s390xcap_P.kmo[0] & \
1182 S390X_CAPBIT(S390X_AES_128)))
1183 # define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1184 (OPENSSL_s390xcap_P.kmo[0] & \
1185 S390X_CAPBIT(S390X_AES_192)))
1186 # define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1187 (OPENSSL_s390xcap_P.kmo[0] & \
1188 S390X_CAPBIT(S390X_AES_256)))
1190 static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
1191 const unsigned char *key,
1192 const unsigned char *ivec, int enc)
1194 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1195 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1196 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1197 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1199 memcpy(cctx->kmo.param.cv, iv, ivlen);
1200 memcpy(cctx->kmo.param.k, key, keylen);
1201 cctx->fc = S390X_AES_FC(keylen);
1206 static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1207 const unsigned char *in, size_t len)
1209 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1214 *out = *in ^ cctx->kmo.param.cv[n];
1223 len &= ~(size_t)0xf;
1225 s390x_kmo(in, len, out, cctx->fc, &cctx->kmo.param);
1232 s390x_km(cctx->kmo.param.cv, 16, cctx->kmo.param.cv, cctx->fc,
1236 out[n] = in[n] ^ cctx->kmo.param.cv[n];
1245 # define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1246 (OPENSSL_s390xcap_P.kmf[0] & \
1247 S390X_CAPBIT(S390X_AES_128)))
1248 # define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1249 (OPENSSL_s390xcap_P.kmf[0] & \
1250 S390X_CAPBIT(S390X_AES_192)))
1251 # define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1252 (OPENSSL_s390xcap_P.kmf[0] & \
1253 S390X_CAPBIT(S390X_AES_256)))
1255 static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
1256 const unsigned char *key,
1257 const unsigned char *ivec, int enc)
1259 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1260 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1261 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1262 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1264 cctx->fc = S390X_AES_FC(keylen);
1265 cctx->fc |= 16 << 24; /* 16 bytes cipher feedback */
1267 cctx->fc |= S390X_DECRYPT;
1270 memcpy(cctx->kmf.param.cv, iv, ivlen);
1271 memcpy(cctx->kmf.param.k, key, keylen);
1275 static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1276 const unsigned char *in, size_t len)
1278 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1279 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1280 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1287 *out = cctx->kmf.param.cv[n] ^ tmp;
1288 cctx->kmf.param.cv[n] = enc ? *out : tmp;
1297 len &= ~(size_t)0xf;
1299 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1306 s390x_km(cctx->kmf.param.cv, 16, cctx->kmf.param.cv,
1307 S390X_AES_FC(keylen), cctx->kmf.param.k);
1311 out[n] = cctx->kmf.param.cv[n] ^ tmp;
1312 cctx->kmf.param.cv[n] = enc ? out[n] : tmp;
1321 # define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1322 S390X_CAPBIT(S390X_AES_128))
1323 # define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1324 S390X_CAPBIT(S390X_AES_192))
1325 # define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1326 S390X_CAPBIT(S390X_AES_256))
1328 static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
1329 const unsigned char *key,
1330 const unsigned char *ivec, int enc)
1332 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1333 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1334 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1335 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1337 cctx->fc = S390X_AES_FC(keylen);
1338 cctx->fc |= 1 << 24; /* 1 byte cipher feedback */
1340 cctx->fc |= S390X_DECRYPT;
1342 memcpy(cctx->kmf.param.cv, iv, ivlen);
1343 memcpy(cctx->kmf.param.k, key, keylen);
1347 static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1348 const unsigned char *in, size_t len)
1350 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1352 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1356 # define S390X_aes_128_cfb1_CAPABLE 0
1357 # define S390X_aes_192_cfb1_CAPABLE 0
1358 # define S390X_aes_256_cfb1_CAPABLE 0
1360 # define s390x_aes_cfb1_init_key aes_init_key
1362 # define s390x_aes_cfb1_cipher aes_cfb1_cipher
1363 static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1364 const unsigned char *in, size_t len);
1366 # define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1367 # define S390X_aes_192_ctr_CAPABLE 1
1368 # define S390X_aes_256_ctr_CAPABLE 1
1369 # define S390X_AES_CTR_CTX EVP_AES_KEY
1371 # define s390x_aes_ctr_init_key aes_init_key
1373 # define s390x_aes_ctr_cipher aes_ctr_cipher
1374 static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1375 const unsigned char *in, size_t len);
1377 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1378 (OPENSSL_s390xcap_P.kma[0] & \
1379 S390X_CAPBIT(S390X_AES_128)))
1380 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1381 (OPENSSL_s390xcap_P.kma[0] & \
1382 S390X_CAPBIT(S390X_AES_192)))
1383 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1384 (OPENSSL_s390xcap_P.kma[0] & \
1385 S390X_CAPBIT(S390X_AES_256)))
1387 /* iv + padding length for iv lenghts != 12 */
1388 # define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1391 * Process additional authenticated data. Returns 0 on success. Code is
1394 static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1397 unsigned long long alen;
1400 if (ctx->kma.param.tpcl)
1403 alen = ctx->kma.param.taadl + len;
1404 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1406 ctx->kma.param.taadl = alen;
1411 ctx->ares[n] = *aad;
1416 /* ctx->ares contains a complete block if offset has wrapped around */
1418 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1419 ctx->fc |= S390X_KMA_HS;
1426 len &= ~(size_t)0xf;
1428 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1430 ctx->fc |= S390X_KMA_HS;
1438 ctx->ares[rem] = aad[rem];
1445 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1446 * success. Code is big-endian.
1448 static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1449 unsigned char *out, size_t len)
1451 const unsigned char *inptr;
1452 unsigned long long mlen;
1455 unsigned char b[16];
1460 mlen = ctx->kma.param.tpcl + len;
1461 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1463 ctx->kma.param.tpcl = mlen;
1469 while (n && inlen) {
1470 ctx->mres[n] = *inptr;
1475 /* ctx->mres contains a complete block if offset has wrapped around */
1477 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1478 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1479 ctx->fc |= S390X_KMA_HS;
1482 /* previous call already encrypted/decrypted its remainder,
1483 * see comment below */
1498 len &= ~(size_t)0xf;
1500 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1501 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1504 ctx->fc |= S390X_KMA_HS;
1509 * If there is a remainder, it has to be saved such that it can be
1510 * processed by kma later. However, we also have to do the for-now
1511 * unauthenticated encryption/decryption part here and now...
1514 if (!ctx->mreslen) {
1515 buf.w[0] = ctx->kma.param.j0.w[0];
1516 buf.w[1] = ctx->kma.param.j0.w[1];
1517 buf.w[2] = ctx->kma.param.j0.w[2];
1518 buf.w[3] = ctx->kma.param.cv.w + 1;
1519 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1523 for (i = 0; i < rem; i++) {
1524 ctx->mres[n + i] = in[i];
1525 out[i] = in[i] ^ ctx->kres[n + i];
1528 ctx->mreslen += rem;
1534 * Initialize context structure. Code is big-endian.
1536 static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1537 const unsigned char *iv)
1539 ctx->kma.param.t.g[0] = 0;
1540 ctx->kma.param.t.g[1] = 0;
1541 ctx->kma.param.tpcl = 0;
1542 ctx->kma.param.taadl = 0;
1547 if (ctx->ivlen == 12) {
1548 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1549 ctx->kma.param.j0.w[3] = 1;
1550 ctx->kma.param.cv.w = 1;
1552 /* ctx->iv has the right size and is already padded. */
1553 memcpy(ctx->iv, iv, ctx->ivlen);
1554 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1555 ctx->fc, &ctx->kma.param);
1556 ctx->fc |= S390X_KMA_HS;
1558 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1559 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1560 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1561 ctx->kma.param.t.g[0] = 0;
1562 ctx->kma.param.t.g[1] = 0;
1567 * Performs various operations on the context structure depending on control
1568 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1569 * Code is big-endian.
1571 static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1573 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1574 S390X_AES_GCM_CTX *gctx_out;
1575 EVP_CIPHER_CTX *out;
1576 unsigned char *buf, *iv;
1577 int ivlen, enc, len;
1581 ivlen = EVP_CIPHER_CTX_iv_length(c);
1582 iv = EVP_CIPHER_CTX_iv_noconst(c);
1585 gctx->ivlen = ivlen;
1589 gctx->tls_aad_len = -1;
1592 case EVP_CTRL_AEAD_SET_IVLEN:
1597 iv = EVP_CIPHER_CTX_iv_noconst(c);
1598 len = S390X_gcm_ivpadlen(arg);
1600 /* Allocate memory for iv if needed. */
1601 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1603 OPENSSL_free(gctx->iv);
1605 if ((gctx->iv = OPENSSL_malloc(len)) == NULL) {
1606 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1611 memset(gctx->iv + arg, 0, len - arg - 8);
1612 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1617 case EVP_CTRL_AEAD_SET_TAG:
1618 buf = EVP_CIPHER_CTX_buf_noconst(c);
1619 enc = EVP_CIPHER_CTX_encrypting(c);
1620 if (arg <= 0 || arg > 16 || enc)
1623 memcpy(buf, ptr, arg);
1627 case EVP_CTRL_AEAD_GET_TAG:
1628 enc = EVP_CIPHER_CTX_encrypting(c);
1629 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1632 memcpy(ptr, gctx->kma.param.t.b, arg);
1635 case EVP_CTRL_GCM_SET_IV_FIXED:
1636 /* Special case: -1 length restores whole iv */
1638 memcpy(gctx->iv, ptr, gctx->ivlen);
1643 * Fixed field must be at least 4 bytes and invocation field at least
1646 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1650 memcpy(gctx->iv, ptr, arg);
1652 enc = EVP_CIPHER_CTX_encrypting(c);
1653 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1659 case EVP_CTRL_GCM_IV_GEN:
1660 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1663 s390x_aes_gcm_setiv(gctx, gctx->iv);
1665 if (arg <= 0 || arg > gctx->ivlen)
1668 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1670 * Invocation field will be at least 8 bytes in size and so no need
1671 * to check wrap around or increment more than last 8 bytes.
1673 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1677 case EVP_CTRL_GCM_SET_IV_INV:
1678 enc = EVP_CIPHER_CTX_encrypting(c);
1679 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1682 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1683 s390x_aes_gcm_setiv(gctx, gctx->iv);
1687 case EVP_CTRL_AEAD_TLS1_AAD:
1688 /* Save the aad for later use. */
1689 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1692 buf = EVP_CIPHER_CTX_buf_noconst(c);
1693 memcpy(buf, ptr, arg);
1694 gctx->tls_aad_len = arg;
1696 len = buf[arg - 2] << 8 | buf[arg - 1];
1697 /* Correct length for explicit iv. */
1698 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1700 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1702 /* If decrypting correct for tag too. */
1703 enc = EVP_CIPHER_CTX_encrypting(c);
1705 if (len < EVP_GCM_TLS_TAG_LEN)
1707 len -= EVP_GCM_TLS_TAG_LEN;
1709 buf[arg - 2] = len >> 8;
1710 buf[arg - 1] = len & 0xff;
1711 /* Extra padding: tag appended to record. */
1712 return EVP_GCM_TLS_TAG_LEN;
1716 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1717 iv = EVP_CIPHER_CTX_iv_noconst(c);
1719 if (gctx->iv == iv) {
1720 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1722 len = S390X_gcm_ivpadlen(gctx->ivlen);
1724 if ((gctx_out->iv = OPENSSL_malloc(len)) == NULL) {
1725 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
1729 memcpy(gctx_out->iv, gctx->iv, len);
1739 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1741 static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1742 const unsigned char *key,
1743 const unsigned char *iv, int enc)
1745 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1748 if (iv == NULL && key == NULL)
1752 keylen = EVP_CIPHER_CTX_key_length(ctx);
1753 memcpy(&gctx->kma.param.k, key, keylen);
1755 gctx->fc = S390X_AES_FC(keylen);
1757 gctx->fc |= S390X_DECRYPT;
1759 if (iv == NULL && gctx->iv_set)
1763 s390x_aes_gcm_setiv(gctx, iv);
1769 s390x_aes_gcm_setiv(gctx, iv);
1771 memcpy(gctx->iv, iv, gctx->ivlen);
1780 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1781 * if successful. Otherwise -1 is returned. Code is big-endian.
1783 static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1784 const unsigned char *in, size_t len)
1786 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1787 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1788 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1791 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1794 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1795 : EVP_CTRL_GCM_SET_IV_INV,
1796 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1799 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1800 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1801 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1803 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1804 gctx->kma.param.tpcl = len << 3;
1805 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1806 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1809 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1810 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1812 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1813 EVP_GCM_TLS_TAG_LEN)) {
1814 OPENSSL_cleanse(out, len);
1821 gctx->tls_aad_len = -1;
1826 * Called from EVP layer to initialize context, process additional
1827 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1828 * ciphertext or process a TLS packet, depending on context. Returns bytes
1829 * written on success. Otherwise -1 is returned. Code is big-endian.
1831 static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1832 const unsigned char *in, size_t len)
1834 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1835 unsigned char *buf, tmp[16];
1841 if (gctx->tls_aad_len >= 0)
1842 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1849 if (s390x_aes_gcm_aad(gctx, in, len))
1852 if (s390x_aes_gcm(gctx, in, out, len))
1857 gctx->kma.param.taadl <<= 3;
1858 gctx->kma.param.tpcl <<= 3;
1859 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1860 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1861 /* recall that we already did en-/decrypt gctx->mres
1862 * and returned it to caller... */
1863 OPENSSL_cleanse(tmp, gctx->mreslen);
1866 enc = EVP_CIPHER_CTX_encrypting(ctx);
1870 if (gctx->taglen < 0)
1873 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1874 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1881 static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1883 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1884 const unsigned char *iv;
1889 iv = EVP_CIPHER_CTX_iv(c);
1891 OPENSSL_free(gctx->iv);
1893 OPENSSL_cleanse(gctx, sizeof(*gctx));
1897 # define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1898 # define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1899 # define S390X_aes_256_xts_CAPABLE 1
1901 # define s390x_aes_xts_init_key aes_xts_init_key
1902 static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1903 const unsigned char *key,
1904 const unsigned char *iv, int enc);
1905 # define s390x_aes_xts_cipher aes_xts_cipher
1906 static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1907 const unsigned char *in, size_t len);
1908 # define s390x_aes_xts_ctrl aes_xts_ctrl
1909 static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1910 # define s390x_aes_xts_cleanup aes_xts_cleanup
1912 # define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1913 (OPENSSL_s390xcap_P.kmac[0] & \
1914 S390X_CAPBIT(S390X_AES_128)))
1915 # define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1916 (OPENSSL_s390xcap_P.kmac[0] & \
1917 S390X_CAPBIT(S390X_AES_192)))
1918 # define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1919 (OPENSSL_s390xcap_P.kmac[0] & \
1920 S390X_CAPBIT(S390X_AES_256)))
1922 # define S390X_CCM_AAD_FLAG 0x40
1925 * Set nonce and length fields. Code is big-endian.
1927 static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX *ctx,
1928 const unsigned char *nonce,
1931 ctx->aes.ccm.nonce.b[0] &= ~S390X_CCM_AAD_FLAG;
1932 ctx->aes.ccm.nonce.g[1] = mlen;
1933 memcpy(ctx->aes.ccm.nonce.b + 1, nonce, 15 - ctx->aes.ccm.l);
1937 * Process additional authenticated data. Code is big-endian.
1939 static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX *ctx, const unsigned char *aad,
1948 ctx->aes.ccm.nonce.b[0] |= S390X_CCM_AAD_FLAG;
1950 /* Suppress 'type-punned pointer dereference' warning. */
1951 ptr = ctx->aes.ccm.buf.b;
1953 if (alen < ((1 << 16) - (1 << 8))) {
1954 *(uint16_t *)ptr = alen;
1956 } else if (sizeof(alen) == 8
1957 && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
1958 *(uint16_t *)ptr = 0xffff;
1959 *(uint64_t *)(ptr + 2) = alen;
1962 *(uint16_t *)ptr = 0xfffe;
1963 *(uint32_t *)(ptr + 2) = alen;
1967 while (i < 16 && alen) {
1968 ctx->aes.ccm.buf.b[i] = *aad;
1974 ctx->aes.ccm.buf.b[i] = 0;
1978 ctx->aes.ccm.kmac_param.icv.g[0] = 0;
1979 ctx->aes.ccm.kmac_param.icv.g[1] = 0;
1980 s390x_kmac(ctx->aes.ccm.nonce.b, 32, ctx->aes.ccm.fc,
1981 &ctx->aes.ccm.kmac_param);
1982 ctx->aes.ccm.blocks += 2;
1985 alen &= ~(size_t)0xf;
1987 s390x_kmac(aad, alen, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
1988 ctx->aes.ccm.blocks += alen >> 4;
1992 for (i = 0; i < rem; i++)
1993 ctx->aes.ccm.kmac_param.icv.b[i] ^= aad[i];
1995 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
1996 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
1997 ctx->aes.ccm.kmac_param.k);
1998 ctx->aes.ccm.blocks++;
2003 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2006 static int s390x_aes_ccm(S390X_AES_CCM_CTX *ctx, const unsigned char *in,
2007 unsigned char *out, size_t len, int enc)
2010 unsigned int i, l, num;
2011 unsigned char flags;
2013 flags = ctx->aes.ccm.nonce.b[0];
2014 if (!(flags & S390X_CCM_AAD_FLAG)) {
2015 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.kmac_param.icv.b,
2016 ctx->aes.ccm.fc, ctx->aes.ccm.kmac_param.k);
2017 ctx->aes.ccm.blocks++;
2020 ctx->aes.ccm.nonce.b[0] = l;
2023 * Reconstruct length from encoded length field
2024 * and initialize it with counter value.
2027 for (i = 15 - l; i < 15; i++) {
2028 n |= ctx->aes.ccm.nonce.b[i];
2029 ctx->aes.ccm.nonce.b[i] = 0;
2032 n |= ctx->aes.ccm.nonce.b[15];
2033 ctx->aes.ccm.nonce.b[15] = 1;
2036 return -1; /* length mismatch */
2039 /* Two operations per block plus one for tag encryption */
2040 ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
2041 if (ctx->aes.ccm.blocks > (1ULL << 61))
2042 return -2; /* too much data */
2047 len &= ~(size_t)0xf;
2050 /* mac-then-encrypt */
2052 s390x_kmac(in, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2054 for (i = 0; i < rem; i++)
2055 ctx->aes.ccm.kmac_param.icv.b[i] ^= in[len + i];
2057 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2058 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2059 ctx->aes.ccm.kmac_param.k);
2062 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2063 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2064 &num, (ctr128_f)AES_ctr32_encrypt);
2066 /* decrypt-then-mac */
2067 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2068 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2069 &num, (ctr128_f)AES_ctr32_encrypt);
2072 s390x_kmac(out, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2074 for (i = 0; i < rem; i++)
2075 ctx->aes.ccm.kmac_param.icv.b[i] ^= out[len + i];
2077 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2078 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2079 ctx->aes.ccm.kmac_param.k);
2083 for (i = 15 - l; i < 16; i++)
2084 ctx->aes.ccm.nonce.b[i] = 0;
2086 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.buf.b, ctx->aes.ccm.fc,
2087 ctx->aes.ccm.kmac_param.k);
2088 ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
2089 ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
2091 ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
2096 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2097 * if successful. Otherwise -1 is returned.
2099 static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2100 const unsigned char *in, size_t len)
2102 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2103 unsigned char *ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2104 unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2105 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2108 || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->aes.ccm.m))
2112 /* Set explicit iv (sequence number). */
2113 memcpy(out, buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2116 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2118 * Get explicit iv (sequence number). We already have fixed iv
2119 * (server/client_write_iv) here.
2121 memcpy(ivec + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2122 s390x_aes_ccm_setiv(cctx, ivec, len);
2124 /* Process aad (sequence number|type|version|length) */
2125 s390x_aes_ccm_aad(cctx, buf, cctx->aes.ccm.tls_aad_len);
2127 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2128 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2131 if (s390x_aes_ccm(cctx, in, out, len, enc))
2134 memcpy(out + len, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2135 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2137 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2138 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, in + len,
2143 OPENSSL_cleanse(out, len);
2149 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2152 static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
2153 const unsigned char *key,
2154 const unsigned char *iv, int enc)
2156 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2157 unsigned char *ivec;
2160 if (iv == NULL && key == NULL)
2164 keylen = EVP_CIPHER_CTX_key_length(ctx);
2165 cctx->aes.ccm.fc = S390X_AES_FC(keylen);
2166 memcpy(cctx->aes.ccm.kmac_param.k, key, keylen);
2168 /* Store encoded m and l. */
2169 cctx->aes.ccm.nonce.b[0] = ((cctx->aes.ccm.l - 1) & 0x7)
2170 | (((cctx->aes.ccm.m - 2) >> 1) & 0x7) << 3;
2171 memset(cctx->aes.ccm.nonce.b + 1, 0,
2172 sizeof(cctx->aes.ccm.nonce.b));
2173 cctx->aes.ccm.blocks = 0;
2175 cctx->aes.ccm.key_set = 1;
2179 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2180 memcpy(ivec, iv, 15 - cctx->aes.ccm.l);
2182 cctx->aes.ccm.iv_set = 1;
2189 * Called from EVP layer to initialize context, process additional
2190 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2191 * plaintext or process a TLS packet, depending on context. Returns bytes
2192 * written on success. Otherwise -1 is returned.
2194 static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2195 const unsigned char *in, size_t len)
2197 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2198 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2200 unsigned char *buf, *ivec;
2202 if (!cctx->aes.ccm.key_set)
2205 if (cctx->aes.ccm.tls_aad_len >= 0)
2206 return s390x_aes_ccm_tls_cipher(ctx, out, in, len);
2209 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2210 * so integrity must be checked already at Update() i.e., before
2211 * potentially corrupted data is output.
2213 if (in == NULL && out != NULL)
2216 if (!cctx->aes.ccm.iv_set)
2219 if (!enc && !cctx->aes.ccm.tag_set)
2223 /* Update(): Pass message length. */
2225 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2226 s390x_aes_ccm_setiv(cctx, ivec, len);
2228 cctx->aes.ccm.len_set = 1;
2232 /* Update(): Process aad. */
2233 if (!cctx->aes.ccm.len_set && len)
2236 s390x_aes_ccm_aad(cctx, in, len);
2240 /* Update(): Process message. */
2242 if (!cctx->aes.ccm.len_set) {
2244 * In case message length was not previously set explicitly via
2245 * Update(), set it now.
2247 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2248 s390x_aes_ccm_setiv(cctx, ivec, len);
2250 cctx->aes.ccm.len_set = 1;
2254 if (s390x_aes_ccm(cctx, in, out, len, enc))
2257 cctx->aes.ccm.tag_set = 1;
2262 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2263 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2264 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, buf,
2270 OPENSSL_cleanse(out, len);
2272 cctx->aes.ccm.iv_set = 0;
2273 cctx->aes.ccm.tag_set = 0;
2274 cctx->aes.ccm.len_set = 0;
2280 * Performs various operations on the context structure depending on control
2281 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2282 * Code is big-endian.
2284 static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2286 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, c);
2287 unsigned char *buf, *iv;
2292 cctx->aes.ccm.key_set = 0;
2293 cctx->aes.ccm.iv_set = 0;
2294 cctx->aes.ccm.l = 8;
2295 cctx->aes.ccm.m = 12;
2296 cctx->aes.ccm.tag_set = 0;
2297 cctx->aes.ccm.len_set = 0;
2298 cctx->aes.ccm.tls_aad_len = -1;
2301 case EVP_CTRL_AEAD_TLS1_AAD:
2302 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2305 /* Save the aad for later use. */
2306 buf = EVP_CIPHER_CTX_buf_noconst(c);
2307 memcpy(buf, ptr, arg);
2308 cctx->aes.ccm.tls_aad_len = arg;
2310 len = buf[arg - 2] << 8 | buf[arg - 1];
2311 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2314 /* Correct length for explicit iv. */
2315 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2317 enc = EVP_CIPHER_CTX_encrypting(c);
2319 if (len < cctx->aes.ccm.m)
2322 /* Correct length for tag. */
2323 len -= cctx->aes.ccm.m;
2326 buf[arg - 2] = len >> 8;
2327 buf[arg - 1] = len & 0xff;
2329 /* Extra padding: tag appended to record. */
2330 return cctx->aes.ccm.m;
2332 case EVP_CTRL_CCM_SET_IV_FIXED:
2333 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2336 /* Copy to first part of the iv. */
2337 iv = EVP_CIPHER_CTX_iv_noconst(c);
2338 memcpy(iv, ptr, arg);
2341 case EVP_CTRL_AEAD_SET_IVLEN:
2345 case EVP_CTRL_CCM_SET_L:
2346 if (arg < 2 || arg > 8)
2349 cctx->aes.ccm.l = arg;
2352 case EVP_CTRL_AEAD_SET_TAG:
2353 if ((arg & 1) || arg < 4 || arg > 16)
2356 enc = EVP_CIPHER_CTX_encrypting(c);
2361 cctx->aes.ccm.tag_set = 1;
2362 buf = EVP_CIPHER_CTX_buf_noconst(c);
2363 memcpy(buf, ptr, arg);
2366 cctx->aes.ccm.m = arg;
2369 case EVP_CTRL_AEAD_GET_TAG:
2370 enc = EVP_CIPHER_CTX_encrypting(c);
2371 if (!enc || !cctx->aes.ccm.tag_set)
2374 if(arg < cctx->aes.ccm.m)
2377 memcpy(ptr, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2378 cctx->aes.ccm.tag_set = 0;
2379 cctx->aes.ccm.iv_set = 0;
2380 cctx->aes.ccm.len_set = 0;
2391 # define s390x_aes_ccm_cleanup aes_ccm_cleanup
2393 # ifndef OPENSSL_NO_OCB
2394 # define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2395 # define S390X_aes_128_ocb_CAPABLE 0
2396 # define S390X_aes_192_ocb_CAPABLE 0
2397 # define S390X_aes_256_ocb_CAPABLE 0
2399 # define s390x_aes_ocb_init_key aes_ocb_init_key
2400 static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2401 const unsigned char *iv, int enc);
2402 # define s390x_aes_ocb_cipher aes_ocb_cipher
2403 static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2404 const unsigned char *in, size_t len);
2405 # define s390x_aes_ocb_cleanup aes_ocb_cleanup
2406 static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
2407 # define s390x_aes_ocb_ctrl aes_ocb_ctrl
2408 static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
2411 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2413 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2414 nid##_##keylen##_##nmode,blocksize, \
2417 flags | EVP_CIPH_##MODE##_MODE, \
2418 s390x_aes_##mode##_init_key, \
2419 s390x_aes_##mode##_cipher, \
2421 sizeof(S390X_AES_##MODE##_CTX), \
2427 static const EVP_CIPHER aes_##keylen##_##mode = { \
2428 nid##_##keylen##_##nmode, \
2432 flags | EVP_CIPH_##MODE##_MODE, \
2434 aes_##mode##_cipher, \
2436 sizeof(EVP_AES_KEY), \
2442 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2444 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2445 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2448 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2449 static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2450 nid##_##keylen##_##mode, \
2452 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2454 flags | EVP_CIPH_##MODE##_MODE, \
2455 s390x_aes_##mode##_init_key, \
2456 s390x_aes_##mode##_cipher, \
2457 s390x_aes_##mode##_cleanup, \
2458 sizeof(S390X_AES_##MODE##_CTX), \
2461 s390x_aes_##mode##_ctrl, \
2464 static const EVP_CIPHER aes_##keylen##_##mode = { \
2465 nid##_##keylen##_##mode,blocksize, \
2466 (EVP_CIPH_##MODE##_MODE == EVP_CIPH_XTS_MODE ? 2 : 1) * keylen / 8, \
2468 flags | EVP_CIPH_##MODE##_MODE, \
2469 aes_##mode##_init_key, \
2470 aes_##mode##_cipher, \
2471 aes_##mode##_cleanup, \
2472 sizeof(EVP_AES_##MODE##_CTX), \
2475 aes_##mode##_ctrl, \
2478 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2480 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2481 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2486 # define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
2487 static const EVP_CIPHER aes_##keylen##_##mode = { \
2488 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2489 flags|EVP_CIPH_##MODE##_MODE, \
2491 aes_##mode##_cipher, \
2493 sizeof(EVP_AES_KEY), \
2494 NULL,NULL,NULL,NULL }; \
2495 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2496 { return &aes_##keylen##_##mode; }
2498 # define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
2499 static const EVP_CIPHER aes_##keylen##_##mode = { \
2500 nid##_##keylen##_##mode,blocksize, \
2501 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
2502 flags|EVP_CIPH_##MODE##_MODE, \
2503 aes_##mode##_init_key, \
2504 aes_##mode##_cipher, \
2505 aes_##mode##_cleanup, \
2506 sizeof(EVP_AES_##MODE##_CTX), \
2507 NULL,NULL,aes_##mode##_ctrl,NULL }; \
2508 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2509 { return &aes_##keylen##_##mode; }
2513 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2514 # include "arm_arch.h"
2515 # if __ARM_MAX_ARCH__>=7
2516 # if defined(BSAES_ASM)
2517 # define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2519 # if defined(VPAES_ASM)
2520 # define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2522 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2523 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2524 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2525 # define HWAES_encrypt aes_v8_encrypt
2526 # define HWAES_decrypt aes_v8_decrypt
2527 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2528 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
2532 #if defined(HWAES_CAPABLE)
2533 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
2535 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
2537 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
2538 const AES_KEY *key);
2539 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
2540 const AES_KEY *key);
2541 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
2542 size_t length, const AES_KEY *key,
2543 unsigned char *ivec, const int enc);
2544 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
2545 size_t len, const AES_KEY *key,
2546 const unsigned char ivec[16]);
2547 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
2548 size_t len, const AES_KEY *key1,
2549 const AES_KEY *key2, const unsigned char iv[16]);
2550 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
2551 size_t len, const AES_KEY *key1,
2552 const AES_KEY *key2, const unsigned char iv[16]);
2555 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
2556 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2557 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2558 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2559 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2560 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2561 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2562 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
2564 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2565 const unsigned char *iv, int enc)
2568 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2570 mode = EVP_CIPHER_CTX_mode(ctx);
2571 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
2573 #ifdef HWAES_CAPABLE
2574 if (HWAES_CAPABLE) {
2575 ret = HWAES_set_decrypt_key(key,
2576 EVP_CIPHER_CTX_key_length(ctx) * 8,
2578 dat->block = (block128_f) HWAES_decrypt;
2579 dat->stream.cbc = NULL;
2580 # ifdef HWAES_cbc_encrypt
2581 if (mode == EVP_CIPH_CBC_MODE)
2582 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2586 #ifdef BSAES_CAPABLE
2587 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
2588 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2590 dat->block = (block128_f) AES_decrypt;
2591 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
2594 #ifdef VPAES_CAPABLE
2595 if (VPAES_CAPABLE) {
2596 ret = vpaes_set_decrypt_key(key,
2597 EVP_CIPHER_CTX_key_length(ctx) * 8,
2599 dat->block = (block128_f) vpaes_decrypt;
2600 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2601 (cbc128_f) vpaes_cbc_encrypt : NULL;
2605 ret = AES_set_decrypt_key(key,
2606 EVP_CIPHER_CTX_key_length(ctx) * 8,
2608 dat->block = (block128_f) AES_decrypt;
2609 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2610 (cbc128_f) AES_cbc_encrypt : NULL;
2613 #ifdef HWAES_CAPABLE
2614 if (HWAES_CAPABLE) {
2615 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2617 dat->block = (block128_f) HWAES_encrypt;
2618 dat->stream.cbc = NULL;
2619 # ifdef HWAES_cbc_encrypt
2620 if (mode == EVP_CIPH_CBC_MODE)
2621 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2624 # ifdef HWAES_ctr32_encrypt_blocks
2625 if (mode == EVP_CIPH_CTR_MODE)
2626 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2629 (void)0; /* terminate potentially open 'else' */
2632 #ifdef BSAES_CAPABLE
2633 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
2634 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2636 dat->block = (block128_f) AES_encrypt;
2637 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2640 #ifdef VPAES_CAPABLE
2641 if (VPAES_CAPABLE) {
2642 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2644 dat->block = (block128_f) vpaes_encrypt;
2645 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2646 (cbc128_f) vpaes_cbc_encrypt : NULL;
2650 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2652 dat->block = (block128_f) AES_encrypt;
2653 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2654 (cbc128_f) AES_cbc_encrypt : NULL;
2656 if (mode == EVP_CIPH_CTR_MODE)
2657 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
2662 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
2669 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2670 const unsigned char *in, size_t len)
2672 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2674 if (dat->stream.cbc)
2675 (*dat->stream.cbc) (in, out, len, &dat->ks,
2676 EVP_CIPHER_CTX_iv_noconst(ctx),
2677 EVP_CIPHER_CTX_encrypting(ctx));
2678 else if (EVP_CIPHER_CTX_encrypting(ctx))
2679 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
2680 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2682 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
2683 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
2688 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2689 const unsigned char *in, size_t len)
2691 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
2693 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2698 for (i = 0, len -= bl; i <= len; i += bl)
2699 (*dat->block) (in + i, out + i, &dat->ks);
2704 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2705 const unsigned char *in, size_t len)
2707 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2709 int num = EVP_CIPHER_CTX_num(ctx);
2710 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
2711 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
2712 EVP_CIPHER_CTX_set_num(ctx, num);
2716 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2717 const unsigned char *in, size_t len)
2719 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2721 int num = EVP_CIPHER_CTX_num(ctx);
2722 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
2723 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2724 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2725 EVP_CIPHER_CTX_set_num(ctx, num);
2729 static int aes_cfb8_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 int num = EVP_CIPHER_CTX_num(ctx);
2735 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
2736 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2737 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2738 EVP_CIPHER_CTX_set_num(ctx, num);
2742 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2743 const unsigned char *in, size_t len)
2745 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2747 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
2748 int num = EVP_CIPHER_CTX_num(ctx);
2749 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
2750 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2751 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2752 EVP_CIPHER_CTX_set_num(ctx, num);
2756 while (len >= MAXBITCHUNK) {
2757 int num = EVP_CIPHER_CTX_num(ctx);
2758 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
2759 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2760 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2761 EVP_CIPHER_CTX_set_num(ctx, num);
2767 int num = EVP_CIPHER_CTX_num(ctx);
2768 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
2769 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2770 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2771 EVP_CIPHER_CTX_set_num(ctx, num);
2777 static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2778 const unsigned char *in, size_t len)
2780 unsigned int num = EVP_CIPHER_CTX_num(ctx);
2781 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
2783 if (dat->stream.ctr)
2784 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
2785 EVP_CIPHER_CTX_iv_noconst(ctx),
2786 EVP_CIPHER_CTX_buf_noconst(ctx),
2787 &num, dat->stream.ctr);
2789 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
2790 EVP_CIPHER_CTX_iv_noconst(ctx),
2791 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
2793 EVP_CIPHER_CTX_set_num(ctx, num);
2797 BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2798 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2799 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
2801 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
2803 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2806 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
2807 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
2808 OPENSSL_free(gctx->iv);
2812 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2814 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
2819 gctx->ivlen = c->cipher->iv_len;
2823 gctx->tls_aad_len = -1;
2826 case EVP_CTRL_AEAD_SET_IVLEN:
2829 /* Allocate memory for IV if needed */
2830 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
2831 if (gctx->iv != c->iv)
2832 OPENSSL_free(gctx->iv);
2833 if ((gctx->iv = OPENSSL_malloc(arg)) == NULL) {
2834 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2841 case EVP_CTRL_AEAD_SET_TAG:
2842 if (arg <= 0 || arg > 16 || c->encrypt)
2844 memcpy(c->buf, ptr, arg);
2848 case EVP_CTRL_AEAD_GET_TAG:
2849 if (arg <= 0 || arg > 16 || !c->encrypt
2850 || gctx->taglen < 0)
2852 memcpy(ptr, c->buf, arg);
2855 case EVP_CTRL_GCM_SET_IV_FIXED:
2856 /* Special case: -1 length restores whole IV */
2858 memcpy(gctx->iv, ptr, gctx->ivlen);
2863 * Fixed field must be at least 4 bytes and invocation field at least
2866 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2869 memcpy(gctx->iv, ptr, arg);
2870 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
2875 case EVP_CTRL_GCM_IV_GEN:
2876 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2878 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2879 if (arg <= 0 || arg > gctx->ivlen)
2881 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2883 * Invocation field will be at least 8 bytes in size and so no need
2884 * to check wrap around or increment more than last 8 bytes.
2886 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2890 case EVP_CTRL_GCM_SET_IV_INV:
2891 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
2893 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2894 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2898 case EVP_CTRL_AEAD_TLS1_AAD:
2899 /* Save the AAD for later use */
2900 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2902 memcpy(c->buf, ptr, arg);
2903 gctx->tls_aad_len = arg;
2905 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
2906 /* Correct length for explicit IV */
2907 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2909 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2910 /* If decrypting correct for tag too */
2912 if (len < EVP_GCM_TLS_TAG_LEN)
2914 len -= EVP_GCM_TLS_TAG_LEN;
2916 c->buf[arg - 2] = len >> 8;
2917 c->buf[arg - 1] = len & 0xff;
2919 /* Extra padding: tag appended to record */
2920 return EVP_GCM_TLS_TAG_LEN;
2924 EVP_CIPHER_CTX *out = ptr;
2925 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
2926 if (gctx->gcm.key) {
2927 if (gctx->gcm.key != &gctx->ks)
2929 gctx_out->gcm.key = &gctx_out->ks;
2931 if (gctx->iv == c->iv)
2932 gctx_out->iv = out->iv;
2934 if ((gctx_out->iv = OPENSSL_malloc(gctx->ivlen)) == NULL) {
2935 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
2938 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2949 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2950 const unsigned char *iv, int enc)
2952 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
2957 #ifdef HWAES_CAPABLE
2958 if (HWAES_CAPABLE) {
2959 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
2960 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2961 (block128_f) HWAES_encrypt);
2962 # ifdef HWAES_ctr32_encrypt_blocks
2963 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2970 #ifdef BSAES_CAPABLE
2971 if (BSAES_CAPABLE) {
2972 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
2973 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2974 (block128_f) AES_encrypt);
2975 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2979 #ifdef VPAES_CAPABLE
2980 if (VPAES_CAPABLE) {
2981 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
2982 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2983 (block128_f) vpaes_encrypt);
2988 (void)0; /* terminate potentially open 'else' */
2990 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
2991 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
2992 (block128_f) AES_encrypt);
2994 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
3001 * If we have an iv can set it directly, otherwise use saved IV.
3003 if (iv == NULL && gctx->iv_set)
3006 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3011 /* If key set use IV, otherwise copy */
3013 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3015 memcpy(gctx->iv, iv, gctx->ivlen);
3023 * Handle TLS GCM packet format. This consists of the last portion of the IV
3024 * followed by the payload and finally the tag. On encrypt generate IV,
3025 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3029 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3030 const unsigned char *in, size_t len)
3032 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3034 /* Encrypt/decrypt must be performed in place */
3036 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
3039 * Set IV from start of buffer or generate IV and write to start of
3042 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? EVP_CTRL_GCM_IV_GEN
3043 : EVP_CTRL_GCM_SET_IV_INV,
3044 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
3047 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
3049 /* Fix buffer and length to point to payload */
3050 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3051 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3052 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3054 /* Encrypt payload */
3057 #if defined(AES_GCM_ASM)
3058 if (len >= 32 && AES_GCM_ASM(gctx)) {
3059 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3062 bulk = AES_gcm_encrypt(in, out, len,
3064 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3065 gctx->gcm.len.u[1] += bulk;
3068 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3071 len - bulk, gctx->ctr))
3075 #if defined(AES_GCM_ASM2)
3076 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3077 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3080 bulk = AES_gcm_encrypt(in, out, len,
3082 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3083 gctx->gcm.len.u[1] += bulk;
3086 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3087 in + bulk, out + bulk, len - bulk))
3091 /* Finally write tag */
3092 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
3093 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3098 #if defined(AES_GCM_ASM)
3099 if (len >= 16 && AES_GCM_ASM(gctx)) {
3100 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3103 bulk = AES_gcm_decrypt(in, out, len,
3105 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3106 gctx->gcm.len.u[1] += bulk;
3109 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3112 len - bulk, gctx->ctr))
3116 #if defined(AES_GCM_ASM2)
3117 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3118 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3121 bulk = AES_gcm_decrypt(in, out, len,
3123 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3124 gctx->gcm.len.u[1] += bulk;
3127 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3128 in + bulk, out + bulk, len - bulk))
3132 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
3133 /* If tag mismatch wipe buffer */
3134 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
3135 OPENSSL_cleanse(out, len);
3143 gctx->tls_aad_len = -1;
3147 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3148 const unsigned char *in, size_t len)
3150 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
3151 /* If not set up, return error */
3155 if (gctx->tls_aad_len >= 0)
3156 return aes_gcm_tls_cipher(ctx, out, in, len);
3162 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
3164 } else if (ctx->encrypt) {
3167 #if defined(AES_GCM_ASM)
3168 if (len >= 32 && AES_GCM_ASM(gctx)) {
3169 size_t res = (16 - gctx->gcm.mres) % 16;
3171 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3174 bulk = AES_gcm_encrypt(in + res,
3175 out + res, len - res,
3176 gctx->gcm.key, gctx->gcm.Yi.c,
3178 gctx->gcm.len.u[1] += bulk;
3182 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3185 len - bulk, gctx->ctr))
3189 #if defined(AES_GCM_ASM2)
3190 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3191 size_t res = (16 - gctx->gcm.mres) % 16;
3193 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3196 bulk = AES_gcm_encrypt(in + res,
3197 out + res, len - res,
3198 gctx->gcm.key, gctx->gcm.Yi.c,
3200 gctx->gcm.len.u[1] += bulk;
3204 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3205 in + bulk, out + bulk, len - bulk))
3211 #if defined(AES_GCM_ASM)
3212 if (len >= 16 && AES_GCM_ASM(gctx)) {
3213 size_t res = (16 - gctx->gcm.mres) % 16;
3215 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3218 bulk = AES_gcm_decrypt(in + res,
3219 out + res, len - res,
3221 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3222 gctx->gcm.len.u[1] += bulk;
3226 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3229 len - bulk, gctx->ctr))
3233 #if defined(AES_GCM_ASM2)
3234 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3235 size_t res = (16 - gctx->gcm.mres) % 16;
3237 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3240 bulk = AES_gcm_decrypt(in + res,
3241 out + res, len - res,
3243 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3244 gctx->gcm.len.u[1] += bulk;
3248 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3249 in + bulk, out + bulk, len - bulk))
3255 if (!ctx->encrypt) {
3256 if (gctx->taglen < 0)
3258 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
3263 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
3265 /* Don't reuse the IV */
3272 #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
3273 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3274 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3275 | EVP_CIPH_CUSTOM_COPY)
3277 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
3278 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3279 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
3280 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3281 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
3282 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3284 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3286 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
3287 if (type == EVP_CTRL_COPY) {
3288 EVP_CIPHER_CTX *out = ptr;
3289 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
3290 if (xctx->xts.key1) {
3291 if (xctx->xts.key1 != &xctx->ks1)
3293 xctx_out->xts.key1 = &xctx_out->ks1;
3295 if (xctx->xts.key2) {
3296 if (xctx->xts.key2 != &xctx->ks2)
3298 xctx_out->xts.key2 = &xctx_out->ks2;
3301 } else if (type != EVP_CTRL_INIT)
3303 /* key1 and key2 are used as an indicator both key and IV are set */
3304 xctx->xts.key1 = NULL;
3305 xctx->xts.key2 = NULL;
3309 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3310 const unsigned char *iv, int enc)
3312 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3319 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
3321 xctx->stream = NULL;
3323 /* key_len is two AES keys */
3324 #ifdef HWAES_CAPABLE
3325 if (HWAES_CAPABLE) {
3327 HWAES_set_encrypt_key(key,
3328 EVP_CIPHER_CTX_key_length(ctx) * 4,
3330 xctx->xts.block1 = (block128_f) HWAES_encrypt;
3331 # ifdef HWAES_xts_encrypt
3332 xctx->stream = HWAES_xts_encrypt;
3335 HWAES_set_decrypt_key(key,
3336 EVP_CIPHER_CTX_key_length(ctx) * 4,
3338 xctx->xts.block1 = (block128_f) HWAES_decrypt;
3339 # ifdef HWAES_xts_decrypt
3340 xctx->stream = HWAES_xts_decrypt;
3344 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3345 EVP_CIPHER_CTX_key_length(ctx) * 4,
3347 xctx->xts.block2 = (block128_f) HWAES_encrypt;
3349 xctx->xts.key1 = &xctx->ks1;
3353 #ifdef BSAES_CAPABLE
3355 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
3358 #ifdef VPAES_CAPABLE
3359 if (VPAES_CAPABLE) {
3361 vpaes_set_encrypt_key(key,
3362 EVP_CIPHER_CTX_key_length(ctx) * 4,
3364 xctx->xts.block1 = (block128_f) vpaes_encrypt;
3366 vpaes_set_decrypt_key(key,
3367 EVP_CIPHER_CTX_key_length(ctx) * 4,
3369 xctx->xts.block1 = (block128_f) vpaes_decrypt;
3372 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3373 EVP_CIPHER_CTX_key_length(ctx) * 4,
3375 xctx->xts.block2 = (block128_f) vpaes_encrypt;
3377 xctx->xts.key1 = &xctx->ks1;
3381 (void)0; /* terminate potentially open 'else' */
3384 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3386 xctx->xts.block1 = (block128_f) AES_encrypt;
3388 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3390 xctx->xts.block1 = (block128_f) AES_decrypt;
3393 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3394 EVP_CIPHER_CTX_key_length(ctx) * 4,
3396 xctx->xts.block2 = (block128_f) AES_encrypt;
3398 xctx->xts.key1 = &xctx->ks1;
3402 xctx->xts.key2 = &xctx->ks2;
3403 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
3409 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3410 const unsigned char *in, size_t len)
3412 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
3413 if (!xctx->xts.key1 || !xctx->xts.key2)
3415 if (!out || !in || len < AES_BLOCK_SIZE)
3418 (*xctx->stream) (in, out, len,
3419 xctx->xts.key1, xctx->xts.key2,
3420 EVP_CIPHER_CTX_iv_noconst(ctx));
3421 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
3423 EVP_CIPHER_CTX_encrypting(ctx)))
3428 #define aes_xts_cleanup NULL
3430 #define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
3431 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3432 | EVP_CIPH_CUSTOM_COPY)
3434 BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
3435 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
3437 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3439 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
3448 cctx->tls_aad_len = -1;
3451 case EVP_CTRL_AEAD_TLS1_AAD:
3452 /* Save the AAD for later use */
3453 if (arg != EVP_AEAD_TLS1_AAD_LEN)
3455 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3456 cctx->tls_aad_len = arg;
3459 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
3460 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
3461 /* Correct length for explicit IV */
3462 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
3464 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
3465 /* If decrypting correct for tag too */
3466 if (!EVP_CIPHER_CTX_encrypting(c)) {
3471 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
3472 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
3474 /* Extra padding: tag appended to record */
3477 case EVP_CTRL_CCM_SET_IV_FIXED:
3478 /* Sanity check length */
3479 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
3481 /* Just copy to first part of IV */
3482 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
3485 case EVP_CTRL_AEAD_SET_IVLEN:
3488 case EVP_CTRL_CCM_SET_L:
3489 if (arg < 2 || arg > 8)
3494 case EVP_CTRL_AEAD_SET_TAG:
3495 if ((arg & 1) || arg < 4 || arg > 16)
3497 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
3501 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
3506 case EVP_CTRL_AEAD_GET_TAG:
3507 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
3509 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
3518 EVP_CIPHER_CTX *out = ptr;
3519 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
3520 if (cctx->ccm.key) {
3521 if (cctx->ccm.key != &cctx->ks)
3523 cctx_out->ccm.key = &cctx_out->ks;
3534 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3535 const unsigned char *iv, int enc)
3537 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3542 #ifdef HWAES_CAPABLE
3543 if (HWAES_CAPABLE) {
3544 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3547 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3548 &cctx->ks, (block128_f) HWAES_encrypt);
3554 #ifdef VPAES_CAPABLE
3555 if (VPAES_CAPABLE) {
3556 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3558 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3559 &cctx->ks, (block128_f) vpaes_encrypt);
3565 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3567 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3568 &cctx->ks, (block128_f) AES_encrypt);
3573 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
3579 static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3580 const unsigned char *in, size_t len)
3582 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3583 CCM128_CONTEXT *ccm = &cctx->ccm;
3584 /* Encrypt/decrypt must be performed in place */
3585 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
3587 /* If encrypting set explicit IV from sequence number (start of AAD) */
3588 if (EVP_CIPHER_CTX_encrypting(ctx))
3589 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
3590 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3591 /* Get rest of IV from explicit IV */
3592 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
3593 EVP_CCM_TLS_EXPLICIT_IV_LEN);
3594 /* Correct length value */
3595 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3596 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
3600 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
3601 /* Fix buffer to point to payload */
3602 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3603 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3604 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3605 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3607 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3609 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
3611 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3613 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3615 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3616 unsigned char tag[16];
3617 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3618 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
3622 OPENSSL_cleanse(out, len);
3627 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3628 const unsigned char *in, size_t len)
3630 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
3631 CCM128_CONTEXT *ccm = &cctx->ccm;
3632 /* If not set up, return error */
3636 if (cctx->tls_aad_len >= 0)
3637 return aes_ccm_tls_cipher(ctx, out, in, len);
3639 /* EVP_*Final() doesn't return any data */
3640 if (in == NULL && out != NULL)
3646 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
3650 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3656 /* If have AAD need message length */
3657 if (!cctx->len_set && len)
3659 CRYPTO_ccm128_aad(ccm, in, len);
3662 /* If not set length yet do it */
3663 if (!cctx->len_set) {
3664 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3669 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3670 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3672 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3678 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3680 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3681 unsigned char tag[16];
3682 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3683 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
3689 OPENSSL_cleanse(out, len);
3697 #define aes_ccm_cleanup NULL
3699 BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
3700 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3701 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
3702 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3703 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
3704 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3711 /* Indicates if IV has been set */
3715 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3716 const unsigned char *iv, int enc)
3718 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3722 if (EVP_CIPHER_CTX_encrypting(ctx))
3723 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3726 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3732 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
3733 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
3738 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3739 const unsigned char *in, size_t inlen)
3741 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
3743 /* AES wrap with padding has IV length of 4, without padding 8 */
3744 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
3745 /* No final operation so always return zero length */
3748 /* Input length must always be non-zero */
3751 /* If decrypting need at least 16 bytes and multiple of 8 */
3752 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
3754 /* If not padding input must be multiple of 8 */
3755 if (!pad && inlen & 0x7)
3757 if (is_partially_overlapping(out, in, inlen)) {
3758 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3762 if (EVP_CIPHER_CTX_encrypting(ctx)) {
3763 /* If padding round up to multiple of 8 */
3765 inlen = (inlen + 7) / 8 * 8;
3770 * If not padding output will be exactly 8 bytes smaller than
3771 * input. If padding it will be at least 8 bytes smaller but we
3772 * don't know how much.
3778 if (EVP_CIPHER_CTX_encrypting(ctx))
3779 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3781 (block128_f) AES_encrypt);
3783 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3785 (block128_f) AES_decrypt);
3787 if (EVP_CIPHER_CTX_encrypting(ctx))
3788 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3789 out, in, inlen, (block128_f) AES_encrypt);
3791 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3792 out, in, inlen, (block128_f) AES_decrypt);
3794 return rv ? (int)rv : -1;
3797 #define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
3798 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3799 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
3801 static const EVP_CIPHER aes_128_wrap = {
3803 8, 16, 8, WRAP_FLAGS,
3804 aes_wrap_init_key, aes_wrap_cipher,
3806 sizeof(EVP_AES_WRAP_CTX),
3807 NULL, NULL, NULL, NULL
3810 const EVP_CIPHER *EVP_aes_128_wrap(void)
3812 return &aes_128_wrap;
3815 static const EVP_CIPHER aes_192_wrap = {
3817 8, 24, 8, WRAP_FLAGS,
3818 aes_wrap_init_key, aes_wrap_cipher,
3820 sizeof(EVP_AES_WRAP_CTX),
3821 NULL, NULL, NULL, NULL
3824 const EVP_CIPHER *EVP_aes_192_wrap(void)
3826 return &aes_192_wrap;
3829 static const EVP_CIPHER aes_256_wrap = {
3831 8, 32, 8, WRAP_FLAGS,
3832 aes_wrap_init_key, aes_wrap_cipher,
3834 sizeof(EVP_AES_WRAP_CTX),
3835 NULL, NULL, NULL, NULL
3838 const EVP_CIPHER *EVP_aes_256_wrap(void)
3840 return &aes_256_wrap;
3843 static const EVP_CIPHER aes_128_wrap_pad = {
3844 NID_id_aes128_wrap_pad,
3845 8, 16, 4, WRAP_FLAGS,
3846 aes_wrap_init_key, aes_wrap_cipher,
3848 sizeof(EVP_AES_WRAP_CTX),
3849 NULL, NULL, NULL, NULL
3852 const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
3854 return &aes_128_wrap_pad;
3857 static const EVP_CIPHER aes_192_wrap_pad = {
3858 NID_id_aes192_wrap_pad,
3859 8, 24, 4, WRAP_FLAGS,
3860 aes_wrap_init_key, aes_wrap_cipher,
3862 sizeof(EVP_AES_WRAP_CTX),
3863 NULL, NULL, NULL, NULL
3866 const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
3868 return &aes_192_wrap_pad;
3871 static const EVP_CIPHER aes_256_wrap_pad = {
3872 NID_id_aes256_wrap_pad,
3873 8, 32, 4, WRAP_FLAGS,
3874 aes_wrap_init_key, aes_wrap_cipher,
3876 sizeof(EVP_AES_WRAP_CTX),
3877 NULL, NULL, NULL, NULL
3880 const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
3882 return &aes_256_wrap_pad;
3885 #ifndef OPENSSL_NO_OCB
3886 static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
3888 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
3889 EVP_CIPHER_CTX *newc;
3890 EVP_AES_OCB_CTX *new_octx;
3896 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
3897 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
3899 octx->data_buf_len = 0;
3900 octx->aad_buf_len = 0;
3903 case EVP_CTRL_AEAD_SET_IVLEN:
3904 /* IV len must be 1 to 15 */
3905 if (arg <= 0 || arg > 15)
3911 case EVP_CTRL_AEAD_SET_TAG:
3913 /* Tag len must be 0 to 16 */
3914 if (arg < 0 || arg > 16)
3920 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
3922 memcpy(octx->tag, ptr, arg);
3925 case EVP_CTRL_AEAD_GET_TAG:
3926 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
3929 memcpy(ptr, octx->tag, arg);
3933 newc = (EVP_CIPHER_CTX *)ptr;
3934 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
3935 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
3936 &new_octx->ksenc.ks,
3937 &new_octx->ksdec.ks);
3945 # ifdef HWAES_CAPABLE
3946 # ifdef HWAES_ocb_encrypt
3947 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
3948 size_t blocks, const void *key,
3949 size_t start_block_num,
3950 unsigned char offset_i[16],
3951 const unsigned char L_[][16],
3952 unsigned char checksum[16]);
3954 # define HWAES_ocb_encrypt ((ocb128_f)NULL)
3956 # ifdef HWAES_ocb_decrypt
3957 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
3958 size_t blocks, const void *key,
3959 size_t start_block_num,
3960 unsigned char offset_i[16],
3961 const unsigned char L_[][16],
3962 unsigned char checksum[16]);
3964 # define HWAES_ocb_decrypt ((ocb128_f)NULL)
3968 static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
3969 const unsigned char *iv, int enc)
3971 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
3977 * We set both the encrypt and decrypt key here because decrypt
3978 * needs both. We could possibly optimise to remove setting the
3979 * decrypt for an encryption operation.
3981 # ifdef HWAES_CAPABLE
3982 if (HWAES_CAPABLE) {
3983 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3985 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3987 if (!CRYPTO_ocb128_init(&octx->ocb,
3988 &octx->ksenc.ks, &octx->ksdec.ks,
3989 (block128_f) HWAES_encrypt,
3990 (block128_f) HWAES_decrypt,
3991 enc ? HWAES_ocb_encrypt
3992 : HWAES_ocb_decrypt))
3997 # ifdef VPAES_CAPABLE
3998 if (VPAES_CAPABLE) {
3999 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4001 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4003 if (!CRYPTO_ocb128_init(&octx->ocb,
4004 &octx->ksenc.ks, &octx->ksdec.ks,
4005 (block128_f) vpaes_encrypt,
4006 (block128_f) vpaes_decrypt,
4012 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4014 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4016 if (!CRYPTO_ocb128_init(&octx->ocb,
4017 &octx->ksenc.ks, &octx->ksdec.ks,
4018 (block128_f) AES_encrypt,
4019 (block128_f) AES_decrypt,
4026 * If we have an iv we can set it directly, otherwise use saved IV.
4028 if (iv == NULL && octx->iv_set)
4031 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
4038 /* If key set use IV, otherwise copy */
4040 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
4042 memcpy(octx->iv, iv, octx->ivlen);
4048 static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4049 const unsigned char *in, size_t len)
4053 int written_len = 0;
4054 size_t trailing_len;
4055 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
4057 /* If IV or Key not set then return error */
4066 * Need to ensure we are only passing full blocks to low level OCB
4067 * routines. We do it here rather than in EVP_EncryptUpdate/
4068 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4069 * and those routines don't support that
4072 /* Are we dealing with AAD or normal data here? */
4074 buf = octx->aad_buf;
4075 buf_len = &(octx->aad_buf_len);
4077 buf = octx->data_buf;
4078 buf_len = &(octx->data_buf_len);
4080 if (is_partially_overlapping(out + *buf_len, in, len)) {
4081 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
4087 * If we've got a partially filled buffer from a previous call then
4088 * use that data first
4091 unsigned int remaining;
4093 remaining = AES_BLOCK_SIZE - (*buf_len);
4094 if (remaining > len) {
4095 memcpy(buf + (*buf_len), in, len);
4099 memcpy(buf + (*buf_len), in, remaining);
4102 * If we get here we've filled the buffer, so process it
4107 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
4109 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4110 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
4114 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
4118 written_len = AES_BLOCK_SIZE;
4121 out += AES_BLOCK_SIZE;
4124 /* Do we have a partial block to handle at the end? */
4125 trailing_len = len % AES_BLOCK_SIZE;
4128 * If we've got some full blocks to handle, then process these first
4130 if (len != trailing_len) {
4132 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
4134 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
4135 if (!CRYPTO_ocb128_encrypt
4136 (&octx->ocb, in, out, len - trailing_len))
4139 if (!CRYPTO_ocb128_decrypt
4140 (&octx->ocb, in, out, len - trailing_len))
4143 written_len += len - trailing_len;
4144 in += len - trailing_len;
4147 /* Handle any trailing partial block */
4148 if (trailing_len > 0) {
4149 memcpy(buf, in, trailing_len);
4150 *buf_len = trailing_len;
4156 * First of all empty the buffer of any partial block that we might
4157 * have been provided - both for data and AAD
4159 if (octx->data_buf_len > 0) {
4160 if (EVP_CIPHER_CTX_encrypting(ctx)) {
4161 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
4162 octx->data_buf_len))
4165 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
4166 octx->data_buf_len))
4169 written_len = octx->data_buf_len;
4170 octx->data_buf_len = 0;
4172 if (octx->aad_buf_len > 0) {
4173 if (!CRYPTO_ocb128_aad
4174 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
4176 octx->aad_buf_len = 0;
4178 /* If decrypting then verify */
4179 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
4180 if (octx->taglen < 0)
4182 if (CRYPTO_ocb128_finish(&octx->ocb,
4183 octx->tag, octx->taglen) != 0)
4188 /* If encrypting then just get the tag */
4189 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
4191 /* Don't reuse the IV */
4197 static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
4199 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
4200 CRYPTO_ocb128_cleanup(&octx->ocb);
4204 BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
4205 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4206 BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
4207 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4208 BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
4209 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4210 #endif /* OPENSSL_NO_OCB */