crypto/evp/e_aes.c

   1 /* ====================================================================
   2  * Copyright (c) 2001-2011 The OpenSSL Project.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  *
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  *
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in
  13  *    the documentation and/or other materials provided with the
  14  *    distribution.
  15  *
  16  * 3. All advertising materials mentioning features or use of this
  17  *    software must display the following acknowledgment:
  18  *    "This product includes software developed by the OpenSSL Project
  19  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  20  *
  21  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  22  *    endorse or promote products derived from this software without
  23  *    prior written permission. For written permission, please contact
  24  *    openssl-core@openssl.org.
  25  *
  26  * 5. Products derived from this software may not be called "OpenSSL"
  27  *    nor may "OpenSSL" appear in their names without prior written
  28  *    permission of the OpenSSL Project.
  29  *
  30  * 6. Redistributions of any form whatsoever must retain the following
  31  *    acknowledgment:
  32  *    "This product includes software developed by the OpenSSL Project
  33  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  34  *
  35  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  36  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  38  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  39  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  41  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  42  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  43  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  44  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  45  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  46  * OF THE POSSIBILITY OF SUCH DAMAGE.
  47  * ====================================================================
  48  *
  49  */
  50
  51 #define OPENSSL_FIPSAPI
  52
  53 #include <openssl/opensslconf.h>
  54 #ifndef OPENSSL_NO_AES
  55 #include <openssl/evp.h>
  56 #include <openssl/err.h>
  57 #include <string.h>
  58 #include <assert.h>
  59 #include <openssl/aes.h>
  60 #include "evp_locl.h"
  61 #include "modes_lcl.h"
  62 #include <openssl/rand.h>
  63
  64 typedef struct
  65         {
  66         union { double align; AES_KEY ks; } ks;
  67         block128_f block;
  68         union {
  69                 cbc128_f cbc;
  70                 ctr128_f ctr;
  71         } stream;
  72         } EVP_AES_KEY;
  73
  74 typedef struct
  75         {
  76         union { double align; AES_KEY ks; } ks; /* AES key schedule to use */
  77         int key_set;            /* Set if key initialised */
  78         int iv_set;             /* Set if an iv is set */
  79         GCM128_CONTEXT gcm;
  80         unsigned char *iv;      /* Temporary IV store */
  81         int ivlen;              /* IV length */
  82         int taglen;
  83         int iv_gen;             /* It is OK to generate IVs */
  84         int tls_aad_len;        /* TLS AAD length */
  85         ctr128_f ctr;
  86         } EVP_AES_GCM_CTX;
  87
  88 typedef struct
  89         {
  90         union { double align; AES_KEY ks; } ks1, ks2;   /* AES key schedules to use */
  91         XTS128_CONTEXT xts;
  92         void     (*stream)(const unsigned char *in,
  93                         unsigned char *out, size_t length,
  94                         const AES_KEY *key1, const AES_KEY *key2,
  95                         const unsigned char iv[16]);
  96         } EVP_AES_XTS_CTX;
  97
  98 typedef struct
  99         {
 100         union { double align; AES_KEY ks; } ks; /* AES key schedule to use */
 101         int key_set;            /* Set if key initialised */
 102         int iv_set;             /* Set if an iv is set */
 103         int tag_set;            /* Set if tag is valid */
 104         int len_set;            /* Set if message length set */
 105         int L, M;               /* L and M parameters from RFC3610 */
 106         CCM128_CONTEXT ccm;
 107         ccm128_f str;
 108         } EVP_AES_CCM_CTX;
 109
 110 #define MAXBITCHUNK     ((size_t)1<<(sizeof(size_t)*8-4))
 111
 112 #ifdef VPAES_ASM
 113 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
 114                         AES_KEY *key);
 115 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
 116                         AES_KEY *key);
 117
 118 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
 119                         const AES_KEY *key);
 120 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
 121                         const AES_KEY *key);
 122
 123 void vpaes_cbc_encrypt(const unsigned char *in,
 124                         unsigned char *out,
 125                         size_t length,
 126                         const AES_KEY *key,
 127                         unsigned char *ivec, int enc);
 128 #endif
 129 #ifdef BSAES_ASM
 130 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
 131                         size_t length, const AES_KEY *key,
 132                         unsigned char ivec[16], int enc);
 133 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
 134                         size_t len, const AES_KEY *key,
 135                         const unsigned char ivec[16]);
 136 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
 137                         size_t len, const AES_KEY *key1,
 138                         const AES_KEY *key2, const unsigned char iv[16]);
 139 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
 140                         size_t len, const AES_KEY *key1,
 141                         const AES_KEY *key2, const unsigned char iv[16]);
 142 #endif
 143 #ifdef AES_CTR_ASM
 144 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
 145                         size_t blocks, const AES_KEY *key,
 146                         const unsigned char ivec[AES_BLOCK_SIZE]);
 147 #endif
 148 #ifdef AES_XTS_ASM
 149 void AES_xts_encrypt(const char *inp,char *out,size_t len,
 150                         const AES_KEY *key1, const AES_KEY *key2,
 151                         const unsigned char iv[16]);
 152 void AES_xts_decrypt(const char *inp,char *out,size_t len,
 153                         const AES_KEY *key1, const AES_KEY *key2,
 154                         const unsigned char iv[16]);
 155 #endif
 156
 157 #if     defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
 158 extern unsigned int OPENSSL_ppccap_P;
 159 # ifdef VPAES_ASM
 160 #  define VPAES_CAPABLE (OPENSSL_ppccap_P&(1<<1))
 161 # endif
 162 # define HWAES_CAPABLE  (OPENSSL_ppccap_P&(1<<2))
 163 # define HWAES_set_encrypt_key aes_p8_set_encrypt_key
 164 # define HWAES_set_decrypt_key aes_p8_set_decrypt_key
 165 # define HWAES_encrypt aes_p8_encrypt
 166 # define HWAES_decrypt aes_p8_decrypt
 167 # define HWAES_cbc_encrypt aes_p8_cbc_encrypt
 168 # define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
 169 #endif
 170
 171 #if     defined(AES_ASM) && !defined(I386_ONLY) &&      (  \
 172         ((defined(__i386)       || defined(__i386__)    || \
 173           defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
 174         defined(__x86_64)       || defined(__x86_64__)  || \
 175         defined(_M_AMD64)       || defined(_M_X64)      || \
 176         defined(__INTEL__)                              )
 177
 178 extern unsigned int OPENSSL_ia32cap_P[];
 179
 180 #ifdef VPAES_ASM
 181 #define VPAES_CAPABLE   (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
 182 #endif
 183 #ifdef BSAES_ASM
 184 #define BSAES_CAPABLE   VPAES_CAPABLE
 185 #endif
 186 /*
 187  * AES-NI section
 188  */
 189 #define AESNI_CAPABLE   (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
 190
 191 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
 192                         AES_KEY *key);
 193 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
 194                         AES_KEY *key);
 195
 196 void aesni_encrypt(const unsigned char *in, unsigned char *out,
 197                         const AES_KEY *key);
 198 void aesni_decrypt(const unsigned char *in, unsigned char *out,
 199                         const AES_KEY *key);
 200
 201 void aesni_ecb_encrypt(const unsigned char *in,
 202                         unsigned char *out,
 203                         size_t length,
 204                         const AES_KEY *key,
 205                         int enc);
 206 void aesni_cbc_encrypt(const unsigned char *in,
 207                         unsigned char *out,
 208                         size_t length,
 209                         const AES_KEY *key,
 210                         unsigned char *ivec, int enc);
 211
 212 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
 213                         unsigned char *out,
 214                         size_t blocks,
 215                         const void *key,
 216                         const unsigned char *ivec);
 217
 218 void aesni_xts_encrypt(const unsigned char *in,
 219                         unsigned char *out,
 220                         size_t length,
 221                         const AES_KEY *key1, const AES_KEY *key2,
 222                         const unsigned char iv[16]);
 223
 224 void aesni_xts_decrypt(const unsigned char *in,
 225                         unsigned char *out,
 226                         size_t length,
 227                         const AES_KEY *key1, const AES_KEY *key2,
 228                         const unsigned char iv[16]);
 229
 230 void aesni_ccm64_encrypt_blocks (const unsigned char *in,
 231                         unsigned char *out,
 232                         size_t blocks,
 233                         const void *key,
 234                         const unsigned char ivec[16],
 235                         unsigned char cmac[16]);
 236
 237 void aesni_ccm64_decrypt_blocks (const unsigned char *in,
 238                         unsigned char *out,
 239                         size_t blocks,
 240                         const void *key,
 241                         const unsigned char ivec[16],
 242                         unsigned char cmac[16]);
 243
 244 #if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
 245 size_t aesni_gcm_encrypt(const unsigned char *in,
 246                         unsigned char *out,
 247                         size_t len,
 248                         const void *key,
 249                         unsigned char ivec[16],
 250                         u64 *Xi);
 251 #define AES_gcm_encrypt aesni_gcm_encrypt
 252 size_t aesni_gcm_decrypt(const unsigned char *in,
 253                         unsigned char *out,
 254                         size_t len,
 255                         const void *key,
 256                         unsigned char ivec[16],
 257                         u64 *Xi);
 258 #define AES_gcm_decrypt aesni_gcm_decrypt
 259 void gcm_ghash_avx(u64 Xi[2],const u128 Htable[16],const u8 *in,size_t len);
 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 */
 265 #endif
 266
 267 static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 268                    const unsigned char *iv, int enc)
 269         {
 270         int ret, mode;
 271         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
 272
 273         mode = ctx->cipher->flags & EVP_CIPH_MODE;
 274         if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
 275             && !enc)
 276                 {
 277                 ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data);
 278                 dat->block      = (block128_f)aesni_decrypt;
 279                 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
 280                                         (cbc128_f)aesni_cbc_encrypt :
 281                                         NULL;
 282                 }
 283         else    {
 284                 ret = aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data);
 285                 dat->block      = (block128_f)aesni_encrypt;
 286                 if (mode==EVP_CIPH_CBC_MODE)
 287                         dat->stream.cbc = (cbc128_f)aesni_cbc_encrypt;
 288                 else if (mode==EVP_CIPH_CTR_MODE)
 289                         dat->stream.ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
 290                 else
 291                         dat->stream.cbc = NULL;
 292                 }
 293
 294         if(ret < 0)
 295                 {
 296                 EVPerr(EVP_F_AESNI_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
 297                 return 0;
 298                 }
 299
 300         return 1;
 301         }
 302
 303 static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 304         const unsigned char *in, size_t len)
 305 {
 306         aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);
 307
 308         return 1;
 309 }
 310
 311 static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 312         const unsigned char *in, size_t len)
 313 {
 314         size_t  bl = ctx->cipher->block_size;
 315
 316         if (len<bl)     return 1;
 317
 318         aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt);
 319
 320         return 1;
 321 }
 322
 323 #define aesni_ofb_cipher aes_ofb_cipher
 324 static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 325         const unsigned char *in,size_t len);
 326
 327 #define aesni_cfb_cipher aes_cfb_cipher
 328 static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 329         const unsigned char *in,size_t len);
 330
 331 #define aesni_cfb8_cipher aes_cfb8_cipher
 332 static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 333         const unsigned char *in,size_t len);
 334
 335 #define aesni_cfb1_cipher aes_cfb1_cipher
 336 static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 337         const unsigned char *in,size_t len);
 338
 339 #define aesni_ctr_cipher aes_ctr_cipher
 340 static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 341                 const unsigned char *in, size_t len);
 342
 343 static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 344                         const unsigned char *iv, int enc)
 345         {
 346         EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
 347         if (!iv && !key)
 348                 return 1;
 349         if (key)
 350                 {
 351                 aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
 352                 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
 353                                 (block128_f)aesni_encrypt);
 354                 gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
 355                 /* If we have an iv can set it directly, otherwise use
 356                  * saved IV.
 357                  */
 358                 if (iv == NULL && gctx->iv_set)
 359                         iv = gctx->iv;
 360                 if (iv)
 361                         {
 362                         CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
 363                         gctx->iv_set = 1;
 364                         }
 365                 gctx->key_set = 1;
 366                 }
 367         else
 368                 {
 369                 /* If key set use IV, otherwise copy */
 370                 if (gctx->key_set)
 371                         CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
 372                 else
 373                         memcpy(gctx->iv, iv, gctx->ivlen);
 374                 gctx->iv_set = 1;
 375                 gctx->iv_gen = 0;
 376                 }
 377         return 1;
 378         }
 379
 380 #define aesni_gcm_cipher aes_gcm_cipher
 381 static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 382                 const unsigned char *in, size_t len);
 383
 384 static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 385                         const unsigned char *iv, int enc)
 386         {
 387         EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
 388         if (!iv && !key)
 389                 return 1;
 390
 391         if (key)
 392                 {
 393                 /* key_len is two AES keys */
 394                 if (enc)
 395                         {
 396                         aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
 397                         xctx->xts.block1 = (block128_f)aesni_encrypt;
 398                         xctx->stream = aesni_xts_encrypt;
 399                         }
 400                 else
 401                         {
 402                         aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
 403                         xctx->xts.block1 = (block128_f)aesni_decrypt;
 404                         xctx->stream = aesni_xts_decrypt;
 405                         }
 406
 407                 aesni_set_encrypt_key(key + ctx->key_len/2,
 408                                                 ctx->key_len * 4, &xctx->ks2.ks);
 409                 xctx->xts.block2 = (block128_f)aesni_encrypt;
 410
 411                 xctx->xts.key1 = &xctx->ks1;
 412                 }
 413
 414         if (iv)
 415                 {
 416                 xctx->xts.key2 = &xctx->ks2;
 417                 memcpy(ctx->iv, iv, 16);
 418                 }
 419
 420         return 1;
 421         }
 422
 423 #define aesni_xts_cipher aes_xts_cipher
 424 static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 425                 const unsigned char *in, size_t len);
 426
 427 static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 428                         const unsigned char *iv, int enc)
 429         {
 430         EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
 431         if (!iv && !key)
 432                 return 1;
 433         if (key)
 434                 {
 435                 aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
 436                 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
 437                                         &cctx->ks, (block128_f)aesni_encrypt);
 438                 cctx->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks :
 439                                 (ccm128_f)aesni_ccm64_decrypt_blocks;
 440                 cctx->key_set = 1;
 441                 }
 442         if (iv)
 443                 {
 444                 memcpy(ctx->iv, iv, 15 - cctx->L);
 445                 cctx->iv_set = 1;
 446                 }
 447         return 1;
 448         }
 449
 450 #define aesni_ccm_cipher aes_ccm_cipher
 451 static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 452                 const unsigned char *in, size_t len);
 453
 454 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
 455 static const EVP_CIPHER aesni_##keylen##_##mode = { \
 456         nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
 457         flags|EVP_CIPH_##MODE##_MODE,   \
 458         aesni_init_key,                 \
 459         aesni_##mode##_cipher,          \
 460         NULL,                           \
 461         sizeof(EVP_AES_KEY),            \
 462         NULL,NULL,NULL,NULL }; \
 463 static const EVP_CIPHER aes_##keylen##_##mode = { \
 464         nid##_##keylen##_##nmode,blocksize,     \
 465         keylen/8,ivlen, \
 466         flags|EVP_CIPH_##MODE##_MODE,   \
 467         aes_init_key,                   \
 468         aes_##mode##_cipher,            \
 469         NULL,                           \
 470         sizeof(EVP_AES_KEY),            \
 471         NULL,NULL,NULL,NULL }; \
 472 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 473 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
 474
 475 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
 476 static const EVP_CIPHER aesni_##keylen##_##mode = { \
 477         nid##_##keylen##_##mode,blocksize, \
 478         (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
 479         flags|EVP_CIPH_##MODE##_MODE,   \
 480         aesni_##mode##_init_key,        \
 481         aesni_##mode##_cipher,          \
 482         aes_##mode##_cleanup,           \
 483         sizeof(EVP_AES_##MODE##_CTX),   \
 484         NULL,NULL,aes_##mode##_ctrl,NULL }; \
 485 static const EVP_CIPHER aes_##keylen##_##mode = { \
 486         nid##_##keylen##_##mode,blocksize, \
 487         (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
 488         flags|EVP_CIPH_##MODE##_MODE,   \
 489         aes_##mode##_init_key,          \
 490         aes_##mode##_cipher,            \
 491         aes_##mode##_cleanup,           \
 492         sizeof(EVP_AES_##MODE##_CTX),   \
 493         NULL,NULL,aes_##mode##_ctrl,NULL }; \
 494 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 495 { return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
 496
 497 #elif   defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
 498
 499 #include "sparc_arch.h"
 500
 501 extern unsigned int OPENSSL_sparcv9cap_P[];
 502
 503 #define SPARC_AES_CAPABLE       (OPENSSL_sparcv9cap_P[1] & CFR_AES)
 504
 505 void    aes_t4_set_encrypt_key (const unsigned char *key, int bits,
 506                                 AES_KEY *ks);
 507 void    aes_t4_set_decrypt_key (const unsigned char *key, int bits,
 508                                 AES_KEY *ks);
 509 void    aes_t4_encrypt (const unsigned char *in, unsigned char *out,
 510                                 const AES_KEY *key);
 511 void    aes_t4_decrypt (const unsigned char *in, unsigned char *out,
 512                                 const AES_KEY *key);
 513 /*
 514  * Key-length specific subroutines were chosen for following reason.
 515  * Each SPARC T4 core can execute up to 8 threads which share core's
 516  * resources. Loading as much key material to registers allows to
 517  * minimize references to shared memory interface, as well as amount
 518  * of instructions in inner loops [much needed on T4]. But then having
 519  * non-key-length specific routines would require conditional branches
 520  * either in inner loops or on subroutines' entries. Former is hardly
 521  * acceptable, while latter means code size increase to size occupied
 522  * by multiple key-length specfic subroutines, so why fight?
 523  */
 524 void    aes128_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
 525                                 size_t len, const AES_KEY *key,
 526                                 unsigned char *ivec);
 527 void    aes128_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
 528                                 size_t len, const AES_KEY *key,
 529                                 unsigned char *ivec);
 530 void    aes192_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
 531                                 size_t len, const AES_KEY *key,
 532                                 unsigned char *ivec);
 533 void    aes192_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
 534                                 size_t len, const AES_KEY *key,
 535                                 unsigned char *ivec);
 536 void    aes256_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
 537                                 size_t len, const AES_KEY *key,
 538                                 unsigned char *ivec);
 539 void    aes256_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
 540                                 size_t len, const AES_KEY *key,
 541                                 unsigned char *ivec);
 542 void    aes128_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
 543                                 size_t blocks, const AES_KEY *key,
 544                                 unsigned char *ivec);
 545 void    aes192_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
 546                                 size_t blocks, const AES_KEY *key,
 547                                 unsigned char *ivec);
 548 void    aes256_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
 549                                 size_t blocks, const AES_KEY *key,
 550                                 unsigned char *ivec);
 551 void    aes128_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
 552                                 size_t blocks, const AES_KEY *key1,
 553                                 const AES_KEY *key2, const unsigned char *ivec);
 554 void    aes128_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
 555                                 size_t blocks, const AES_KEY *key1,
 556                                 const AES_KEY *key2, const unsigned char *ivec);
 557 void    aes256_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
 558                                 size_t blocks, const AES_KEY *key1,
 559                                 const AES_KEY *key2, const unsigned char *ivec);
 560 void    aes256_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
 561                                 size_t blocks, const AES_KEY *key1,
 562                                 const AES_KEY *key2, const unsigned char *ivec);
 563
 564 static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 565                    const unsigned char *iv, int enc)
 566         {
 567         int ret, mode, bits;
 568         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
 569
 570         mode = ctx->cipher->flags & EVP_CIPH_MODE;
 571         bits = ctx->key_len*8;
 572         if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
 573             && !enc)
 574                 {
 575                     ret = 0;
 576                     aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
 577                     dat->block  = (block128_f)aes_t4_decrypt;
 578                     switch (bits) {
 579                     case 128:
 580                         dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
 581                                                 (cbc128_f)aes128_t4_cbc_decrypt :
 582                                                 NULL;
 583                         break;
 584                     case 192:
 585                         dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
 586                                                 (cbc128_f)aes192_t4_cbc_decrypt :
 587                                                 NULL;
 588                         break;
 589                     case 256:
 590                         dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
 591                                                 (cbc128_f)aes256_t4_cbc_decrypt :
 592                                                 NULL;
 593                         break;
 594                     default:
 595                         ret = -1;
 596                     }
 597                 }
 598         else    {
 599                     ret = 0;
 600                     aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
 601                     dat->block  = (block128_f)aes_t4_encrypt;
 602                     switch (bits) {
 603                     case 128:
 604                         if (mode==EVP_CIPH_CBC_MODE)
 605                                 dat->stream.cbc = (cbc128_f)aes128_t4_cbc_encrypt;
 606                         else if (mode==EVP_CIPH_CTR_MODE)
 607                                 dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
 608                         else
 609                                 dat->stream.cbc = NULL;
 610                         break;
 611                     case 192:
 612                         if (mode==EVP_CIPH_CBC_MODE)
 613                                 dat->stream.cbc = (cbc128_f)aes192_t4_cbc_encrypt;
 614                         else if (mode==EVP_CIPH_CTR_MODE)
 615                                 dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
 616                         else
 617                                 dat->stream.cbc = NULL;
 618                         break;
 619                     case 256:
 620                         if (mode==EVP_CIPH_CBC_MODE)
 621                                 dat->stream.cbc = (cbc128_f)aes256_t4_cbc_encrypt;
 622                         else if (mode==EVP_CIPH_CTR_MODE)
 623                                 dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
 624                         else
 625                                 dat->stream.cbc = NULL;
 626                         break;
 627                     default:
 628                         ret = -1;
 629                     }
 630                 }
 631
 632         if(ret < 0)
 633                 {
 634                 EVPerr(EVP_F_AES_T4_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
 635                 return 0;
 636                 }
 637
 638         return 1;
 639         }
 640
 641 #define aes_t4_cbc_cipher aes_cbc_cipher
 642 static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 643         const unsigned char *in, size_t len);
 644
 645 #define aes_t4_ecb_cipher aes_ecb_cipher
 646 static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 647         const unsigned char *in, size_t len);
 648
 649 #define aes_t4_ofb_cipher aes_ofb_cipher
 650 static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 651         const unsigned char *in,size_t len);
 652
 653 #define aes_t4_cfb_cipher aes_cfb_cipher
 654 static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 655         const unsigned char *in,size_t len);
 656
 657 #define aes_t4_cfb8_cipher aes_cfb8_cipher
 658 static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 659         const unsigned char *in,size_t len);
 660
 661 #define aes_t4_cfb1_cipher aes_cfb1_cipher
 662 static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
 663         const unsigned char *in,size_t len);
 664
 665 #define aes_t4_ctr_cipher aes_ctr_cipher
 666 static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 667                 const unsigned char *in, size_t len);
 668
 669 static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 670                         const unsigned char *iv, int enc)
 671         {
 672         EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
 673         if (!iv && !key)
 674                 return 1;
 675         if (key)
 676                 {
 677                 int bits = ctx->key_len * 8;
 678                 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
 679                 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
 680                                 (block128_f)aes_t4_encrypt);
 681                 switch (bits) {
 682                     case 128:
 683                         gctx->ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
 684                         break;
 685                     case 192:
 686                         gctx->ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
 687                         break;
 688                     case 256:
 689                         gctx->ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
 690                         break;
 691                     default:
 692                         return 0;
 693                 }
 694                 /* If we have an iv can set it directly, otherwise use
 695                  * saved IV.
 696                  */
 697                 if (iv == NULL && gctx->iv_set)
 698                         iv = gctx->iv;
 699                 if (iv)
 700                         {
 701                         CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
 702                         gctx->iv_set = 1;
 703                         }
 704                 gctx->key_set = 1;
 705                 }
 706         else
 707                 {
 708                 /* If key set use IV, otherwise copy */
 709                 if (gctx->key_set)
 710                         CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
 711                 else
 712                         memcpy(gctx->iv, iv, gctx->ivlen);
 713                 gctx->iv_set = 1;
 714                 gctx->iv_gen = 0;
 715                 }
 716         return 1;
 717         }
 718
 719 #define aes_t4_gcm_cipher aes_gcm_cipher
 720 static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 721                 const unsigned char *in, size_t len);
 722
 723 static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 724                         const unsigned char *iv, int enc)
 725         {
 726         EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
 727         if (!iv && !key)
 728                 return 1;
 729
 730         if (key)
 731                 {
 732                 int bits = ctx->key_len * 4;
 733                 xctx->stream = NULL;
 734                 /* key_len is two AES keys */
 735                 if (enc)
 736                         {
 737                         aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
 738                         xctx->xts.block1 = (block128_f)aes_t4_encrypt;
 739                         switch (bits) {
 740                             case 128:
 741                                 xctx->stream = aes128_t4_xts_encrypt;
 742                                 break;
 743 #if 0 /* not yet */
 744                             case 192:
 745                                 xctx->stream = aes192_t4_xts_encrypt;
 746                                 break;
 747 #endif
 748                             case 256:
 749                                 xctx->stream = aes256_t4_xts_encrypt;
 750                                 break;
 751                             default:
 752                                 return 0;
 753                             }
 754                         }
 755                 else
 756                         {
 757                         aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
 758                         xctx->xts.block1 = (block128_f)aes_t4_decrypt;
 759                         switch (bits) {
 760                             case 128:
 761                                 xctx->stream = aes128_t4_xts_decrypt;
 762                                 break;
 763 #if 0 /* not yet */
 764                             case 192:
 765                                 xctx->stream = aes192_t4_xts_decrypt;
 766                                 break;
 767 #endif
 768                             case 256:
 769                                 xctx->stream = aes256_t4_xts_decrypt;
 770                                 break;
 771                             default:
 772                                 return 0;
 773                             }
 774                         }
 775
 776                 aes_t4_set_encrypt_key(key + ctx->key_len/2,
 777                                                 ctx->key_len * 4, &xctx->ks2.ks);
 778                 xctx->xts.block2 = (block128_f)aes_t4_encrypt;
 779
 780                 xctx->xts.key1 = &xctx->ks1;
 781                 }
 782
 783         if (iv)
 784                 {
 785                 xctx->xts.key2 = &xctx->ks2;
 786                 memcpy(ctx->iv, iv, 16);
 787                 }
 788
 789         return 1;
 790         }
 791
 792 #define aes_t4_xts_cipher aes_xts_cipher
 793 static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 794                 const unsigned char *in, size_t len);
 795
 796 static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 797                         const unsigned char *iv, int enc)
 798         {
 799         EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
 800         if (!iv && !key)
 801                 return 1;
 802         if (key)
 803                 {
 804                 int bits = ctx->key_len * 8;
 805                 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
 806                 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
 807                                         &cctx->ks, (block128_f)aes_t4_encrypt);
 808 #if 0 /* not yet */
 809                 switch (bits) {
 810                     case 128:
 811                         cctx->str = enc?(ccm128_f)aes128_t4_ccm64_encrypt :
 812                                 (ccm128_f)ae128_t4_ccm64_decrypt;
 813                         break;
 814                     case 192:
 815                         cctx->str = enc?(ccm128_f)aes192_t4_ccm64_encrypt :
 816                                 (ccm128_f)ae192_t4_ccm64_decrypt;
 817                         break;
 818                     case 256:
 819                         cctx->str = enc?(ccm128_f)aes256_t4_ccm64_encrypt :
 820                                 (ccm128_f)ae256_t4_ccm64_decrypt;
 821                         break;
 822                     default:
 823                         return 0;
 824                     }
 825 #endif
 826                 cctx->key_set = 1;
 827                 }
 828         if (iv)
 829                 {
 830                 memcpy(ctx->iv, iv, 15 - cctx->L);
 831                 cctx->iv_set = 1;
 832                 }
 833         return 1;
 834         }
 835
 836 #define aes_t4_ccm_cipher aes_ccm_cipher
 837 static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
 838                 const unsigned char *in, size_t len);
 839
 840 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
 841 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
 842         nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
 843         flags|EVP_CIPH_##MODE##_MODE,   \
 844         aes_t4_init_key,                \
 845         aes_t4_##mode##_cipher,         \
 846         NULL,                           \
 847         sizeof(EVP_AES_KEY),            \
 848         NULL,NULL,NULL,NULL }; \
 849 static const EVP_CIPHER aes_##keylen##_##mode = { \
 850         nid##_##keylen##_##nmode,blocksize,     \
 851         keylen/8,ivlen, \
 852         flags|EVP_CIPH_##MODE##_MODE,   \
 853         aes_init_key,                   \
 854         aes_##mode##_cipher,            \
 855         NULL,                           \
 856         sizeof(EVP_AES_KEY),            \
 857         NULL,NULL,NULL,NULL }; \
 858 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 859 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
 860
 861 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
 862 static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
 863         nid##_##keylen##_##mode,blocksize, \
 864         (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
 865         flags|EVP_CIPH_##MODE##_MODE,   \
 866         aes_t4_##mode##_init_key,       \
 867         aes_t4_##mode##_cipher,         \
 868         aes_##mode##_cleanup,           \
 869         sizeof(EVP_AES_##MODE##_CTX),   \
 870         NULL,NULL,aes_##mode##_ctrl,NULL }; \
 871 static const EVP_CIPHER aes_##keylen##_##mode = { \
 872         nid##_##keylen##_##mode,blocksize, \
 873         (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
 874         flags|EVP_CIPH_##MODE##_MODE,   \
 875         aes_##mode##_init_key,          \
 876         aes_##mode##_cipher,            \
 877         aes_##mode##_cleanup,           \
 878         sizeof(EVP_AES_##MODE##_CTX),   \
 879         NULL,NULL,aes_##mode##_ctrl,NULL }; \
 880 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 881 { return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
 882
 883 #else
 884
 885 #define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
 886 static const EVP_CIPHER aes_##keylen##_##mode = { \
 887         nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
 888         flags|EVP_CIPH_##MODE##_MODE,   \
 889         aes_init_key,                   \
 890         aes_##mode##_cipher,            \
 891         NULL,                           \
 892         sizeof(EVP_AES_KEY),            \
 893         NULL,NULL,NULL,NULL }; \
 894 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 895 { return &aes_##keylen##_##mode; }
 896
 897 #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
 898 static const EVP_CIPHER aes_##keylen##_##mode = { \
 899         nid##_##keylen##_##mode,blocksize, \
 900         (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
 901         flags|EVP_CIPH_##MODE##_MODE,   \
 902         aes_##mode##_init_key,          \
 903         aes_##mode##_cipher,            \
 904         aes_##mode##_cleanup,           \
 905         sizeof(EVP_AES_##MODE##_CTX),   \
 906         NULL,NULL,aes_##mode##_ctrl,NULL }; \
 907 const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 908 { return &aes_##keylen##_##mode; }
 909
 910 #endif
 911
 912 #if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
 913 #include "arm_arch.h"
 914 #if __ARM_ARCH__>=7
 915 # if defined(BSAES_ASM)
 916 #  define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
 917 # endif
 918 # define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
 919 # define HWAES_set_encrypt_key aes_v8_set_encrypt_key
 920 # define HWAES_set_decrypt_key aes_v8_set_decrypt_key
 921 # define HWAES_encrypt aes_v8_encrypt
 922 # define HWAES_decrypt aes_v8_decrypt
 923 # define HWAES_cbc_encrypt aes_v8_cbc_encrypt
 924 # define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
 925 #endif
 926 #endif
 927
 928 #if defined(HWAES_CAPABLE)
 929 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
 930         AES_KEY *key);
 931 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
 932         AES_KEY *key);
 933 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
 934         const AES_KEY *key);
 935 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
 936         const AES_KEY *key);
 937 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 938         size_t length, const AES_KEY *key,
 939         unsigned char *ivec, const int enc);
 940 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
 941         size_t len, const AES_KEY *key, const unsigned char ivec[16]);
 942 #endif
 943
 944 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags)             \
 945         BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)     \
 946         BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)      \
 947         BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)   \
 948         BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)   \
 949         BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags)       \
 950         BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags)       \
 951         BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
 952
 953 static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 954                    const unsigned char *iv, int enc)
 955         {
 956         int ret, mode;
 957         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
 958
 959         mode = ctx->cipher->flags & EVP_CIPH_MODE;
 960         if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
 961             && !enc)
 962 #ifdef HWAES_CAPABLE
 963             if (HWAES_CAPABLE)
 964                 {
 965                 ret = HWAES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
 966                 dat->block      = (block128_f)HWAES_decrypt;
 967                 dat->stream.cbc = NULL;
 968 #ifdef HWAES_cbc_encrypt
 969                 if (mode==EVP_CIPH_CBC_MODE)
 970                     dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
 971 #endif
 972                 }
 973             else
 974 #endif
 975 #ifdef BSAES_CAPABLE
 976             if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE)
 977                 {
 978                 ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
 979                 dat->block      = (block128_f)AES_decrypt;
 980                 dat->stream.cbc = (cbc128_f)bsaes_cbc_encrypt;
 981                 }
 982             else
 983 #endif
 984 #ifdef VPAES_CAPABLE
 985             if (VPAES_CAPABLE)
 986                 {
 987                 ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
 988                 dat->block      = (block128_f)vpaes_decrypt;
 989                 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
 990                                         (cbc128_f)vpaes_cbc_encrypt :
 991                                         NULL;
 992                 }
 993             else
 994 #endif
 995                 {
 996                 ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
 997                 dat->block      = (block128_f)AES_decrypt;
 998                 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
 999                                         (cbc128_f)AES_cbc_encrypt :
1000                                         NULL;
1001                 }
1002         else
1003 #ifdef HWAES_CAPABLE
1004             if (HWAES_CAPABLE)
1005                 {
1006                 ret = HWAES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1007                 dat->block      = (block128_f)HWAES_encrypt;
1008                 dat->stream.cbc = NULL;
1009 #ifdef HWAES_cbc_encrypt
1010                 if (mode==EVP_CIPH_CBC_MODE)
1011                     dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
1012                 else
1013 #endif
1014 #ifdef HWAES_ctr32_encrypt_blocks
1015                 if (mode==EVP_CIPH_CTR_MODE)
1016                     dat->stream.ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
1017                 else
1018 #endif
1019                 (void)0;        /* terminate potentially open 'else' */
1020                 }
1021             else
1022 #endif
1023 #ifdef BSAES_CAPABLE
1024             if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE)
1025                 {
1026                 ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1027                 dat->block      = (block128_f)AES_encrypt;
1028                 dat->stream.ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
1029                 }
1030             else
1031 #endif
1032 #ifdef VPAES_CAPABLE
1033             if (VPAES_CAPABLE)
1034                 {
1035                 ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1036                 dat->block      = (block128_f)vpaes_encrypt;
1037                 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
1038                                         (cbc128_f)vpaes_cbc_encrypt :
1039                                         NULL;
1040                 }
1041             else
1042 #endif
1043                 {
1044                 ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
1045                 dat->block      = (block128_f)AES_encrypt;
1046                 dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
1047                                         (cbc128_f)AES_cbc_encrypt :
1048                                         NULL;
1049 #ifdef AES_CTR_ASM
1050                 if (mode==EVP_CIPH_CTR_MODE)
1051                         dat->stream.ctr = (ctr128_f)AES_ctr32_encrypt;
1052 #endif
1053                 }
1054
1055         if(ret < 0)
1056                 {
1057                 EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
1058                 return 0;
1059                 }
1060
1061         return 1;
1062         }
1063
1064 static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1065         const unsigned char *in, size_t len)
1066 {
1067         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1068
1069         if (dat->stream.cbc)
1070                 (*dat->stream.cbc)(in,out,len,&dat->ks,ctx->iv,ctx->encrypt);
1071         else if (ctx->encrypt)
1072                 CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
1073         else
1074                 CRYPTO_cbc128_decrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
1075
1076         return 1;
1077 }
1078
1079 static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1080         const unsigned char *in, size_t len)
1081 {
1082         size_t  bl = ctx->cipher->block_size;
1083         size_t  i;
1084         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1085
1086         if (len<bl)     return 1;
1087
1088         for (i=0,len-=bl;i<=len;i+=bl)
1089                 (*dat->block)(in+i,out+i,&dat->ks);
1090
1091         return 1;
1092 }
1093
1094 static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1095         const unsigned char *in,size_t len)
1096 {
1097         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1098
1099         CRYPTO_ofb128_encrypt(in,out,len,&dat->ks,
1100                         ctx->iv,&ctx->num,dat->block);
1101         return 1;
1102 }
1103
1104 static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1105         const unsigned char *in,size_t len)
1106 {
1107         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1108
1109         CRYPTO_cfb128_encrypt(in,out,len,&dat->ks,
1110                         ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1111         return 1;
1112 }
1113
1114 static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1115         const unsigned char *in,size_t len)
1116 {
1117         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1118
1119         CRYPTO_cfb128_8_encrypt(in,out,len,&dat->ks,
1120                         ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1121         return 1;
1122 }
1123
1124 static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
1125         const unsigned char *in,size_t len)
1126 {
1127         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1128
1129         if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
1130                 CRYPTO_cfb128_1_encrypt(in,out,len,&dat->ks,
1131                         ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1132                 return 1;
1133         }
1134
1135         while (len>=MAXBITCHUNK) {
1136                 CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,&dat->ks,
1137                         ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1138                 len-=MAXBITCHUNK;
1139         }
1140         if (len)
1141                 CRYPTO_cfb128_1_encrypt(in,out,len*8,&dat->ks,
1142                         ctx->iv,&ctx->num,ctx->encrypt,dat->block);
1143
1144         return 1;
1145 }
1146
1147 static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out,
1148                 const unsigned char *in, size_t len)
1149 {
1150         unsigned int num = ctx->num;
1151         EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
1152
1153         if (dat->stream.ctr)
1154                 CRYPTO_ctr128_encrypt_ctr32(in,out,len,&dat->ks,
1155                         ctx->iv,ctx->buf,&num,dat->stream.ctr);
1156         else
1157                 CRYPTO_ctr128_encrypt(in,out,len,&dat->ks,
1158                         ctx->iv,ctx->buf,&num,dat->block);
1159         ctx->num = (size_t)num;
1160         return 1;
1161 }
1162
1163 BLOCK_CIPHER_generic_pack(NID_aes,128,EVP_CIPH_FLAG_FIPS)
1164 BLOCK_CIPHER_generic_pack(NID_aes,192,EVP_CIPH_FLAG_FIPS)
1165 BLOCK_CIPHER_generic_pack(NID_aes,256,EVP_CIPH_FLAG_FIPS)
1166
1167 static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1168         {
1169         EVP_AES_GCM_CTX *gctx = c->cipher_data;
1170         OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
1171         if (gctx->iv != c->iv)
1172                 OPENSSL_free(gctx->iv);
1173         return 1;
1174         }
1175
1176 /* increment counter (64-bit int) by 1 */
1177 static void ctr64_inc(unsigned char *counter) {
1178         int n=8;
1179         unsigned char  c;
1180
1181         do {
1182                 --n;
1183                 c = counter[n];
1184                 ++c;
1185                 counter[n] = c;
1186                 if (c) return;
1187         } while (n);
1188 }
1189
1190 static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1191         {
1192         EVP_AES_GCM_CTX *gctx = c->cipher_data;
1193         switch (type)
1194                 {
1195         case EVP_CTRL_INIT:
1196                 gctx->key_set = 0;
1197                 gctx->iv_set = 0;
1198                 gctx->ivlen = c->cipher->iv_len;
1199                 gctx->iv = c->iv;
1200                 gctx->taglen = -1;
1201                 gctx->iv_gen = 0;
1202                 gctx->tls_aad_len = -1;
1203                 return 1;
1204
1205         case EVP_CTRL_GCM_SET_IVLEN:
1206                 if (arg <= 0)
1207                         return 0;
1208 #ifdef OPENSSL_FIPS
1209                 if (FIPS_module_mode() && !(c->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW)
1210                                                  && arg < 12)
1211                         return 0;
1212 #endif
1213                 /* Allocate memory for IV if needed */
1214                 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen))
1215                         {
1216                         if (gctx->iv != c->iv)
1217                                 OPENSSL_free(gctx->iv);
1218                         gctx->iv = OPENSSL_malloc(arg);
1219                         if (!gctx->iv)
1220                                 return 0;
1221                         }
1222                 gctx->ivlen = arg;
1223                 return 1;
1224
1225         case EVP_CTRL_GCM_SET_TAG:
1226                 if (arg <= 0 || arg > 16 || c->encrypt)
1227                         return 0;
1228                 memcpy(c->buf, ptr, arg);
1229                 gctx->taglen = arg;
1230                 return 1;
1231
1232         case EVP_CTRL_GCM_GET_TAG:
1233                 if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
1234                         return 0;
1235                 memcpy(ptr, c->buf, arg);
1236                 return 1;
1237
1238         case EVP_CTRL_GCM_SET_IV_FIXED:
1239                 /* Special case: -1 length restores whole IV */
1240                 if (arg == -1)
1241                         {
1242                         memcpy(gctx->iv, ptr, gctx->ivlen);
1243                         gctx->iv_gen = 1;
1244                         return 1;
1245                         }
1246                 /* Fixed field must be at least 4 bytes and invocation field
1247                  * at least 8.
1248                  */
1249                 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1250                         return 0;
1251                 if (arg)
1252                         memcpy(gctx->iv, ptr, arg);
1253                 if (c->encrypt &&
1254                         RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1255                         return 0;
1256                 gctx->iv_gen = 1;
1257                 return 1;
1258
1259         case EVP_CTRL_GCM_IV_GEN:
1260                 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1261                         return 0;
1262                 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1263                 if (arg <= 0 || arg > gctx->ivlen)
1264                         arg = gctx->ivlen;
1265                 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1266                 /* Invocation field will be at least 8 bytes in size and
1267                  * so no need to check wrap around or increment more than
1268                  * last 8 bytes.
1269                  */
1270                 ctr64_inc(gctx->iv + gctx->ivlen - 8);
1271                 gctx->iv_set = 1;
1272                 return 1;
1273
1274         case EVP_CTRL_GCM_SET_IV_INV:
1275                 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
1276                         return 0;
1277                 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1278                 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
1279                 gctx->iv_set = 1;
1280                 return 1;
1281
1282         case EVP_CTRL_AEAD_TLS1_AAD:
1283                 /* Save the AAD for later use */
1284                 if (arg != 13)
1285                         return 0;
1286                 memcpy(c->buf, ptr, arg);
1287                 gctx->tls_aad_len = arg;
1288                         {
1289                         unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1];
1290                         /* Correct length for explicit IV */
1291                         len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1292                         /* If decrypting correct for tag too */
1293                         if (!c->encrypt)
1294                                 len -= EVP_GCM_TLS_TAG_LEN;
1295                         c->buf[arg-2] = len>>8;
1296                         c->buf[arg-1] = len & 0xff;
1297                         }
1298                 /* Extra padding: tag appended to record */
1299                 return EVP_GCM_TLS_TAG_LEN;
1300
1301         default:
1302                 return -1;
1303
1304                 }
1305         }
1306
1307 static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1308                         const unsigned char *iv, int enc)
1309         {
1310         EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1311         if (!iv && !key)
1312                 return 1;
1313         if (key)
1314                 { do {
1315 #ifdef HWAES_CAPABLE
1316                 if (HWAES_CAPABLE)
1317                         {
1318                         HWAES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1319                         CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1320                                         (block128_f)HWAES_encrypt);
1321 #ifdef HWAES_ctr32_encrypt_blocks
1322                         gctx->ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
1323 #else
1324                         gctx->ctr = NULL;
1325 #endif
1326                         break;
1327                         }
1328                 else
1329 #endif
1330 #ifdef BSAES_CAPABLE
1331                 if (BSAES_CAPABLE)
1332                         {
1333                         AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1334                         CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1335                                         (block128_f)AES_encrypt);
1336                         gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
1337                         break;
1338                         }
1339                 else
1340 #endif
1341 #ifdef VPAES_CAPABLE
1342                 if (VPAES_CAPABLE)
1343                         {
1344                         vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
1345                         CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
1346                                         (block128_f)vpaes_encrypt);
1347                         gctx->ctr = NULL;
1348                         break;
1349                         }
1350                 else
1351 #endif
1352                 (void)0;        /* terminate potentially open 'else' */
1353
1354                 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
1355                 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
1356 #ifdef AES_CTR_ASM
1357                 gctx->ctr = (ctr128_f)AES_ctr32_encrypt;
1358 #else
1359                 gctx->ctr = NULL;
1360 #endif
1361                 } while (0);
1362
1363                 /* If we have an iv can set it directly, otherwise use
1364                  * saved IV.
1365                  */
1366                 if (iv == NULL && gctx->iv_set)
1367                         iv = gctx->iv;
1368                 if (iv)
1369                         {
1370                         CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1371                         gctx->iv_set = 1;
1372                         }
1373                 gctx->key_set = 1;
1374                 }
1375         else
1376                 {
1377                 /* If key set use IV, otherwise copy */
1378                 if (gctx->key_set)
1379                         CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
1380                 else
1381                         memcpy(gctx->iv, iv, gctx->ivlen);
1382                 gctx->iv_set = 1;
1383                 gctx->iv_gen = 0;
1384                 }
1385         return 1;
1386         }
1387
1388 /* Handle TLS GCM packet format. This consists of the last portion of the IV
1389  * followed by the payload and finally the tag. On encrypt generate IV,
1390  * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
1391  * and verify tag.
1392  */
1393
1394 static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1395                 const unsigned char *in, size_t len)
1396         {
1397         EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1398         int rv = -1;
1399         /* Encrypt/decrypt must be performed in place */
1400         if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN+EVP_GCM_TLS_TAG_LEN))
1401                 return -1;
1402         /* Set IV from start of buffer or generate IV and write to start
1403          * of buffer.
1404          */
1405         if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
1406                                 EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
1407                                 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1408                 goto err;
1409         /* Use saved AAD */
1410         if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
1411                 goto err;
1412         /* Fix buffer and length to point to payload */
1413         in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1414         out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1415         len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1416         if (ctx->encrypt)
1417                 {
1418                 /* Encrypt payload */
1419                 if (gctx->ctr)
1420                         {
1421                         size_t bulk=0;
1422 #if defined(AES_GCM_ASM)
1423                         if (len>=32 && AES_GCM_ASM(gctx))
1424                                 {
1425                                 if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
1426                                         return -1;
1427
1428                                 bulk = AES_gcm_encrypt(in,out,len,
1429                                                         gctx->gcm.key,
1430                                                         gctx->gcm.Yi.c,
1431                                                         gctx->gcm.Xi.u);
1432                                 gctx->gcm.len.u[1] += bulk;
1433                                 }
1434 #endif
1435                         if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1436                                                         in +bulk,
1437                                                         out+bulk,
1438                                                         len-bulk,
1439                                                         gctx->ctr))
1440                                 goto err;
1441                         }
1442                 else    {
1443                         size_t bulk=0;
1444 #if defined(AES_GCM_ASM2)
1445                         if (len>=32 && AES_GCM_ASM2(gctx))
1446                                 {
1447                                 if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
1448                                         return -1;
1449
1450                                 bulk = AES_gcm_encrypt(in,out,len,
1451                                                         gctx->gcm.key,
1452                                                         gctx->gcm.Yi.c,
1453                                                         gctx->gcm.Xi.u);
1454                                 gctx->gcm.len.u[1] += bulk;
1455                                 }
1456 #endif
1457                         if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1458                                                         in +bulk,
1459                                                         out+bulk,
1460                                                         len-bulk))
1461                                 goto err;
1462                         }
1463                 out += len;
1464                 /* Finally write tag */
1465                 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
1466                 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1467                 }
1468         else
1469                 {
1470                 /* Decrypt */
1471                 if (gctx->ctr)
1472                         {
1473                         size_t bulk=0;
1474 #if defined(AES_GCM_ASM)
1475                         if (len>=16 && AES_GCM_ASM(gctx))
1476                                 {
1477                                 if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
1478                                         return -1;
1479
1480                                 bulk = AES_gcm_decrypt(in,out,len,
1481                                                         gctx->gcm.key,
1482                                                         gctx->gcm.Yi.c,
1483                                                         gctx->gcm.Xi.u);
1484                                 gctx->gcm.len.u[1] += bulk;
1485                                 }
1486 #endif
1487                         if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1488                                                         in +bulk,
1489                                                         out+bulk,
1490                                                         len-bulk,
1491                                                         gctx->ctr))
1492                                 goto err;
1493                         }
1494                 else    {
1495                         size_t bulk=0;
1496 #if defined(AES_GCM_ASM2)
1497                         if (len>=16 && AES_GCM_ASM2(gctx))
1498                                 {
1499                                 if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
1500                                         return -1;
1501
1502                                 bulk = AES_gcm_decrypt(in,out,len,
1503                                                         gctx->gcm.key,
1504                                                         gctx->gcm.Yi.c,
1505                                                         gctx->gcm.Xi.u);
1506                                 gctx->gcm.len.u[1] += bulk;
1507                                 }
1508 #endif
1509                         if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1510                                                         in +bulk,
1511                                                         out+bulk,
1512                                                         len-bulk))
1513                                 goto err;
1514                         }
1515                 /* Retrieve tag */
1516                 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf,
1517                                         EVP_GCM_TLS_TAG_LEN);
1518                 /* If tag mismatch wipe buffer */
1519                 if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN))
1520                         {
1521                         OPENSSL_cleanse(out, len);
1522                         goto err;
1523                         }
1524                 rv = len;
1525                 }
1526
1527         err:
1528         gctx->iv_set = 0;
1529         gctx->tls_aad_len = -1;
1530         return rv;
1531         }
1532
1533 static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1534                 const unsigned char *in, size_t len)
1535         {
1536         EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
1537         /* If not set up, return error */
1538         if (!gctx->key_set)
1539                 return -1;
1540
1541         if (gctx->tls_aad_len >= 0)
1542                 return aes_gcm_tls_cipher(ctx, out, in, len);
1543
1544         if (!gctx->iv_set)
1545                 return -1;
1546         if (in)
1547                 {
1548                 if (out == NULL)
1549                         {
1550                         if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
1551                                 return -1;
1552                         }
1553                 else if (ctx->encrypt)
1554                         {
1555                         if (gctx->ctr)
1556                                 {
1557                                 size_t bulk=0;
1558 #if defined(AES_GCM_ASM)
1559                                 if (len>=32 && AES_GCM_ASM(gctx))
1560                                         {
1561                                         size_t res = (16-gctx->gcm.mres)%16;
1562
1563                                         if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1564                                                         in,out,res))
1565                                                 return -1;
1566
1567                                         bulk = AES_gcm_encrypt(in+res,
1568                                                         out+res,len-res,                                                                gctx->gcm.key,
1569                                                         gctx->gcm.Yi.c,
1570                                                         gctx->gcm.Xi.u);
1571                                         gctx->gcm.len.u[1] += bulk;
1572                                         bulk += res;
1573                                         }
1574 #endif
1575                                 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
1576                                                         in +bulk,
1577                                                         out+bulk,
1578                                                         len-bulk,
1579                                                         gctx->ctr))
1580                                         return -1;
1581                                 }
1582                         else    {
1583                                 size_t bulk=0;
1584 #if defined(AES_GCM_ASM2)
1585                                 if (len>=32 && AES_GCM_ASM2(gctx))
1586                                         {
1587                                         size_t res = (16-gctx->gcm.mres)%16;
1588
1589                                         if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1590                                                         in,out,res))
1591                                                 return -1;
1592
1593                                         bulk = AES_gcm_encrypt(in+res,
1594                                                         out+res,len-res,                                                                gctx->gcm.key,
1595                                                         gctx->gcm.Yi.c,
1596                                                         gctx->gcm.Xi.u);
1597                                         gctx->gcm.len.u[1] += bulk;
1598                                         bulk += res;
1599                                         }
1600 #endif
1601                                 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
1602                                                         in +bulk,
1603                                                         out+bulk,
1604                                                         len-bulk))
1605                                         return -1;
1606                                 }
1607                         }
1608                 else
1609                         {
1610                         if (gctx->ctr)
1611                                 {
1612                                 size_t bulk=0;
1613 #if defined(AES_GCM_ASM)
1614                                 if (len>=16 && AES_GCM_ASM(gctx))
1615                                         {
1616                                         size_t res = (16-gctx->gcm.mres)%16;
1617
1618                                         if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1619                                                         in,out,res))
1620                                                 return -1;
1621
1622                                         bulk = AES_gcm_decrypt(in+res,
1623                                                         out+res,len-res,
1624                                                         gctx->gcm.key,
1625                                                         gctx->gcm.Yi.c,
1626                                                         gctx->gcm.Xi.u);
1627                                         gctx->gcm.len.u[1] += bulk;
1628                                         bulk += res;
1629                                         }
1630 #endif
1631                                 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
1632                                                         in +bulk,
1633                                                         out+bulk,
1634                                                         len-bulk,
1635                                                         gctx->ctr))
1636                                         return -1;
1637                                 }
1638                         else    {
1639                                 size_t bulk=0;
1640 #if defined(AES_GCM_ASM2)
1641                                 if (len>=16 && AES_GCM_ASM2(gctx))
1642                                         {
1643                                         size_t res = (16-gctx->gcm.mres)%16;
1644
1645                                         if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1646                                                         in,out,res))
1647                                                 return -1;
1648
1649                                         bulk = AES_gcm_decrypt(in+res,
1650                                                         out+res,len-res,
1651                                                         gctx->gcm.key,
1652                                                         gctx->gcm.Yi.c,
1653                                                         gctx->gcm.Xi.u);
1654                                         gctx->gcm.len.u[1] += bulk;
1655                                         bulk += res;
1656                                         }
1657 #endif
1658                                 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
1659                                                         in +bulk,
1660                                                         out+bulk,
1661                                                         len-bulk))
1662                                         return -1;
1663                                 }
1664                         }
1665                 return len;
1666                 }
1667         else
1668                 {
1669                 if (!ctx->encrypt)
1670                         {
1671                         if (gctx->taglen < 0)
1672                                 return -1;
1673                         if (CRYPTO_gcm128_finish(&gctx->gcm,
1674                                         ctx->buf, gctx->taglen) != 0)
1675                                 return -1;
1676                         gctx->iv_set = 0;
1677                         return 0;
1678                         }
1679                 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
1680                 gctx->taglen = 16;
1681                 /* Don't reuse the IV */
1682                 gctx->iv_set = 0;
1683                 return 0;
1684                 }
1685
1686         }
1687
1688 #define CUSTOM_FLAGS    (EVP_CIPH_FLAG_DEFAULT_ASN1 \
1689                 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
1690                 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
1691
1692 BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
1693                 EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1694 BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,
1695                 EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1696 BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
1697                 EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
1698
1699 static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1700         {
1701         EVP_AES_XTS_CTX *xctx = c->cipher_data;
1702         if (type != EVP_CTRL_INIT)
1703                 return -1;
1704         /* key1 and key2 are used as an indicator both key and IV are set */
1705         xctx->xts.key1 = NULL;
1706         xctx->xts.key2 = NULL;
1707         return 1;
1708         }
1709
1710 static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1711                         const unsigned char *iv, int enc)
1712         {
1713         EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1714         if (!iv && !key)
1715                 return 1;
1716
1717         if (key) do
1718                 {
1719 #ifdef AES_XTS_ASM
1720                 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
1721 #else
1722                 xctx->stream = NULL;
1723 #endif
1724                 /* key_len is two AES keys */
1725 #ifdef HWAES_CAPABLE
1726                 if (HWAES_CAPABLE)
1727                         {
1728                         if (enc)
1729                             {
1730                             HWAES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1731                             xctx->xts.block1 = (block128_f)HWAES_encrypt;
1732                             }
1733                         else
1734                             {
1735                             HWAES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1736                             xctx->xts.block1 = (block128_f)HWAES_decrypt;
1737                             }
1738
1739                         HWAES_set_encrypt_key(key + ctx->key_len/2,
1740                                                     ctx->key_len * 4, &xctx->ks2.ks);
1741                         xctx->xts.block2 = (block128_f)HWAES_encrypt;
1742
1743                         xctx->xts.key1 = &xctx->ks1;
1744                         break;
1745                         }
1746                 else
1747 #endif
1748 #ifdef BSAES_CAPABLE
1749                 if (BSAES_CAPABLE)
1750                         xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
1751                 else
1752 #endif
1753 #ifdef VPAES_CAPABLE
1754                 if (VPAES_CAPABLE)
1755                     {
1756                     if (enc)
1757                         {
1758                         vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1759                         xctx->xts.block1 = (block128_f)vpaes_encrypt;
1760                         }
1761                     else
1762                         {
1763                         vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1764                         xctx->xts.block1 = (block128_f)vpaes_decrypt;
1765                         }
1766
1767                     vpaes_set_encrypt_key(key + ctx->key_len/2,
1768                                                 ctx->key_len * 4, &xctx->ks2.ks);
1769                     xctx->xts.block2 = (block128_f)vpaes_encrypt;
1770
1771                     xctx->xts.key1 = &xctx->ks1;
1772                     break;
1773                     }
1774                 else
1775 #endif
1776                 (void)0;        /* terminate potentially open 'else' */
1777
1778                 if (enc)
1779                         {
1780                         AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1781                         xctx->xts.block1 = (block128_f)AES_encrypt;
1782                         }
1783                 else
1784                         {
1785                         AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
1786                         xctx->xts.block1 = (block128_f)AES_decrypt;
1787                         }
1788
1789                 AES_set_encrypt_key(key + ctx->key_len/2,
1790                                                 ctx->key_len * 4, &xctx->ks2.ks);
1791                 xctx->xts.block2 = (block128_f)AES_encrypt;
1792
1793                 xctx->xts.key1 = &xctx->ks1;
1794                 } while (0);
1795
1796         if (iv)
1797                 {
1798                 xctx->xts.key2 = &xctx->ks2;
1799                 memcpy(ctx->iv, iv, 16);
1800                 }
1801
1802         return 1;
1803         }
1804
1805 static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1806                 const unsigned char *in, size_t len)
1807         {
1808         EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
1809         if (!xctx->xts.key1 || !xctx->xts.key2)
1810                 return 0;
1811         if (!out || !in || len<AES_BLOCK_SIZE)
1812                 return 0;
1813 #ifdef OPENSSL_FIPS
1814         /* Requirement of SP800-38E */
1815         if (FIPS_module_mode() && !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) &&
1816                         (len > (1UL<<20)*16))
1817                 {
1818                 EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_TOO_LARGE);
1819                 return 0;
1820                 }
1821 #endif
1822         if (xctx->stream)
1823                 (*xctx->stream)(in, out, len,
1824                                 xctx->xts.key1, xctx->xts.key2, ctx->iv);
1825         else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
1826                                                                 ctx->encrypt))
1827                 return 0;
1828         return 1;
1829         }
1830
1831 #define aes_xts_cleanup NULL
1832
1833 #define XTS_FLAGS       (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
1834                          | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
1835
1836 BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
1837 BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
1838
1839 static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1840         {
1841         EVP_AES_CCM_CTX *cctx = c->cipher_data;
1842         switch (type)
1843                 {
1844         case EVP_CTRL_INIT:
1845                 cctx->key_set = 0;
1846                 cctx->iv_set = 0;
1847                 cctx->L = 8;
1848                 cctx->M = 12;
1849                 cctx->tag_set = 0;
1850                 cctx->len_set = 0;
1851                 return 1;
1852
1853         case EVP_CTRL_CCM_SET_IVLEN:
1854                 arg = 15 - arg;
1855         case EVP_CTRL_CCM_SET_L:
1856                 if (arg < 2 || arg > 8)
1857                         return 0;
1858                 cctx->L = arg;
1859                 return 1;
1860
1861         case EVP_CTRL_CCM_SET_TAG:
1862                 if ((arg & 1) || arg < 4 || arg > 16)
1863                         return 0;
1864                 if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
1865                         return 0;
1866                 if (ptr)
1867                         {
1868                         cctx->tag_set = 1;
1869                         memcpy(c->buf, ptr, arg);
1870                         }
1871                 cctx->M = arg;
1872                 return 1;
1873
1874         case EVP_CTRL_CCM_GET_TAG:
1875                 if (!c->encrypt || !cctx->tag_set)
1876                         return 0;
1877                 if(!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
1878                         return 0;
1879                 cctx->tag_set = 0;
1880                 cctx->iv_set = 0;
1881                 cctx->len_set = 0;
1882                 return 1;
1883
1884         default:
1885                 return -1;
1886
1887                 }
1888         }
1889
1890 static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1891                         const unsigned char *iv, int enc)
1892         {
1893         EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1894         if (!iv && !key)
1895                 return 1;
1896         if (key) do
1897                 {
1898 #ifdef HWAES_CAPABLE
1899                 if (HWAES_CAPABLE)
1900                         {
1901                         HWAES_set_encrypt_key(key,ctx->key_len*8,&cctx->ks.ks);
1902
1903                         CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1904                                         &cctx->ks, (block128_f)HWAES_encrypt);
1905                         cctx->str = NULL;
1906                         cctx->key_set = 1;
1907                         break;
1908                         }
1909                 else
1910 #endif
1911 #ifdef VPAES_CAPABLE
1912                 if (VPAES_CAPABLE)
1913                         {
1914                         vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks.ks);
1915                         CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1916                                         &cctx->ks, (block128_f)vpaes_encrypt);
1917                         cctx->str = NULL;
1918                         cctx->key_set = 1;
1919                         break;
1920                         }
1921 #endif
1922                 AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
1923                 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
1924                                         &cctx->ks, (block128_f)AES_encrypt);
1925                 cctx->str = NULL;
1926                 cctx->key_set = 1;
1927                 } while (0);
1928         if (iv)
1929                 {
1930                 memcpy(ctx->iv, iv, 15 - cctx->L);
1931                 cctx->iv_set = 1;
1932                 }
1933         return 1;
1934         }
1935
1936 static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1937                 const unsigned char *in, size_t len)
1938         {
1939         EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
1940         CCM128_CONTEXT *ccm = &cctx->ccm;
1941         /* If not set up, return error */
1942         if (!cctx->iv_set && !cctx->key_set)
1943                 return -1;
1944         if (!ctx->encrypt && !cctx->tag_set)
1945                 return -1;
1946         if (!out)
1947                 {
1948                 if (!in)
1949                         {
1950                         if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len))
1951                                 return -1;
1952                         cctx->len_set = 1;
1953                         return len;
1954                         }
1955                 /* If have AAD need message length */
1956                 if (!cctx->len_set && len)
1957                         return -1;
1958                 CRYPTO_ccm128_aad(ccm, in, len);
1959                 return len;
1960                 }
1961         /* EVP_*Final() doesn't return any data */
1962         if (!in)
1963                 return 0;
1964         /* If not set length yet do it */
1965         if (!cctx->len_set)
1966                 {
1967                 if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
1968                         return -1;
1969                 cctx->len_set = 1;
1970                 }
1971         if (ctx->encrypt)
1972                 {
1973                 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
1974                                                 cctx->str) :
1975                                 CRYPTO_ccm128_encrypt(ccm, in, out, len))
1976                         return -1;
1977                 cctx->tag_set = 1;
1978                 return len;
1979                 }
1980         else
1981                 {
1982                 int rv = -1;
1983                 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
1984                                                 cctx->str) :
1985                                 !CRYPTO_ccm128_decrypt(ccm, in, out, len))
1986                         {
1987                         unsigned char tag[16];
1988                         if (CRYPTO_ccm128_tag(ccm, tag, cctx->M))
1989                                 {
1990                                 if (!memcmp(tag, ctx->buf, cctx->M))
1991                                         rv = len;
1992                                 }
1993                         }
1994                 if (rv == -1)
1995                         OPENSSL_cleanse(out, len);
1996                 cctx->iv_set = 0;
1997                 cctx->tag_set = 0;
1998                 cctx->len_set = 0;
1999                 return rv;
2000                 }
2001
2002         }
2003
2004 #define aes_ccm_cleanup NULL
2005
2006 BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
2007 BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
2008 BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
2009
2010 typedef struct
2011         {
2012         union { double align; AES_KEY ks; } ks;
2013         /* Indicates if IV has been set */
2014         unsigned char *iv;
2015         } EVP_AES_WRAP_CTX;
2016
2017 static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2018                         const unsigned char *iv, int enc)
2019         {
2020         EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2021         if (!iv && !key)
2022                 return 1;
2023         if (key)
2024                 {
2025                 if (ctx->encrypt)
2026                         AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2027                 else
2028                         AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
2029                 if (!iv)
2030                         wctx->iv = NULL;
2031                 }
2032         if (iv)
2033                 {
2034                 memcpy(ctx->iv, iv, 8);
2035                 wctx->iv = ctx->iv;
2036                 }
2037         return 1;
2038         }
2039
2040 static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2041                 const unsigned char *in, size_t inlen)
2042         {
2043         EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
2044         size_t rv;
2045         if (inlen % 8)
2046                 return 0;
2047         if (!out)
2048                 {
2049                 if (ctx->encrypt)
2050                         return inlen + 8;
2051                 else
2052                         return inlen - 8;
2053                 }
2054         if (!in)
2055                 return 0;
2056         if (ctx->encrypt)
2057                 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
2058                                                 (block128_f)AES_encrypt);
2059         else
2060                 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
2061                                                 (block128_f)AES_decrypt);
2062         return rv ? (int)rv : -1;
2063         }
2064
2065 #define WRAP_FLAGS      (EVP_CIPH_WRAP_MODE \
2066                 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
2067                 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
2068
2069 static const EVP_CIPHER aes_128_wrap = {
2070         NID_id_aes128_wrap,
2071         8, 16, 8, WRAP_FLAGS,
2072         aes_wrap_init_key, aes_wrap_cipher,
2073         NULL,
2074         sizeof(EVP_AES_WRAP_CTX),
2075         NULL,NULL,NULL,NULL };
2076
2077 const EVP_CIPHER *EVP_aes_128_wrap(void)
2078         {
2079         return &aes_128_wrap;
2080         }
2081
2082 static const EVP_CIPHER aes_192_wrap = {
2083         NID_id_aes192_wrap,
2084         8, 24, 8, WRAP_FLAGS,
2085         aes_wrap_init_key, aes_wrap_cipher,
2086         NULL,
2087         sizeof(EVP_AES_WRAP_CTX),
2088         NULL,NULL,NULL,NULL };
2089
2090 const EVP_CIPHER *EVP_aes_192_wrap(void)
2091         {
2092         return &aes_192_wrap;
2093         }
2094
2095 static const EVP_CIPHER aes_256_wrap = {
2096         NID_id_aes256_wrap,
2097         8, 32, 8, WRAP_FLAGS,
2098         aes_wrap_init_key, aes_wrap_cipher,
2099         NULL,
2100         sizeof(EVP_AES_WRAP_CTX),
2101         NULL,NULL,NULL,NULL };
2102
2103 const EVP_CIPHER *EVP_aes_256_wrap(void)
2104         {
2105         return &aes_256_wrap;
2106         }
2107
2108 #endif