include/crypto/aes_platform.h

   1 /*
   2  * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OSSL_AES_PLATFORM_H
  11 # define OSSL_AES_PLATFORM_H
  12
  13 # include "openssl/aes.h"
  14
  15 # ifdef VPAES_ASM
  16 int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
  17                           AES_KEY *key);
  18 int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
  19                           AES_KEY *key);
  20 void vpaes_encrypt(const unsigned char *in, unsigned char *out,
  21                    const AES_KEY *key);
  22 void vpaes_decrypt(const unsigned char *in, unsigned char *out,
  23                    const AES_KEY *key);
  24 void vpaes_cbc_encrypt(const unsigned char *in,
  25                        unsigned char *out,
  26                        size_t length,
  27                        const AES_KEY *key, unsigned char *ivec, int enc);
  28 # endif /* VPAES_ASM */
  29
  30 # ifdef BSAES_ASM
  31 void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
  32                        size_t length, const AES_KEY *key,
  33                        unsigned char ivec[16], int enc);
  34 void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
  35                                 size_t len, const AES_KEY *key,
  36                                 const unsigned char ivec[16]);
  37 void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
  38                        size_t len, const AES_KEY *key1,
  39                        const AES_KEY *key2, const unsigned char iv[16]);
  40 void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
  41                        size_t len, const AES_KEY *key1,
  42                        const AES_KEY *key2, const unsigned char iv[16]);
  43 # endif /* BSAES_ASM */
  44
  45 # ifdef AES_CTR_ASM
  46 void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
  47                        size_t blocks, const AES_KEY *key,
  48                        const unsigned char ivec[AES_BLOCK_SIZE]);
  49 # endif /*  AES_CTR_ASM */
  50
  51 # ifdef AES_XTS_ASM
  52 void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
  53                      const AES_KEY *key1, const AES_KEY *key2,
  54                      const unsigned char iv[16]);
  55 void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
  56                      const AES_KEY *key1, const AES_KEY *key2,
  57                      const unsigned char iv[16]);
  58 # endif /* AES_XTS_ASM */
  59
  60 # if defined(OPENSSL_CPUID_OBJ)
  61 #  if (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
  62 #   include "ppc_arch.h"
  63 #   ifdef VPAES_ASM
  64 #    define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
  65 #   endif
  66 #   define HWAES_CAPABLE  (OPENSSL_ppccap_P & PPC_CRYPTO207)
  67 #   define HWAES_set_encrypt_key aes_p8_set_encrypt_key
  68 #   define HWAES_set_decrypt_key aes_p8_set_decrypt_key
  69 #   define HWAES_encrypt aes_p8_encrypt
  70 #   define HWAES_decrypt aes_p8_decrypt
  71 #   define HWAES_cbc_encrypt aes_p8_cbc_encrypt
  72 #   define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
  73 #   define HWAES_xts_encrypt aes_p8_xts_encrypt
  74 #   define HWAES_xts_decrypt aes_p8_xts_decrypt
  75 #  endif /* PPC */
  76
  77 #  if (defined(__arm__) || defined(__arm) || defined(__aarch64__))
  78 #   include "arm_arch.h"
  79 #   if __ARM_MAX_ARCH__>=7
  80 #    if defined(BSAES_ASM)
  81 #     define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
  82 #    endif
  83 #    if defined(VPAES_ASM)
  84 #     define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
  85 #    endif
  86 #    define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
  87 #    define HWAES_set_encrypt_key aes_v8_set_encrypt_key
  88 #    define HWAES_set_decrypt_key aes_v8_set_decrypt_key
  89 #    define HWAES_encrypt aes_v8_encrypt
  90 #    define HWAES_decrypt aes_v8_decrypt
  91 #    define HWAES_cbc_encrypt aes_v8_cbc_encrypt
  92 #    define HWAES_ecb_encrypt aes_v8_ecb_encrypt
  93 #    define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
  94 #    define AES_PMULL_CAPABLE ((OPENSSL_armcap_P & ARMV8_PMULL) && (OPENSSL_armcap_P & ARMV8_AES))
  95 #    define AES_GCM_ENC_BYTES 512
  96 #    define AES_GCM_DEC_BYTES 512
  97 #    if __ARM_MAX_ARCH__>=8
  98 #     define AES_gcm_encrypt armv8_aes_gcm_encrypt
  99 #     define AES_gcm_decrypt armv8_aes_gcm_decrypt
 100 #     define AES_GCM_ASM(gctx) ((gctx)->ctr==aes_v8_ctr32_encrypt_blocks && \
 101                                 (gctx)->gcm.ghash==gcm_ghash_v8)
 102 size_t aes_gcm_enc_128_kernel(const uint8_t * plaintext, uint64_t plaintext_length, uint8_t * ciphertext,
 103                               uint64_t *Xi, unsigned char ivec[16], const void *key);
 104 size_t aes_gcm_enc_192_kernel(const uint8_t * plaintext, uint64_t plaintext_length, uint8_t * ciphertext,
 105                               uint64_t *Xi, unsigned char ivec[16], const void *key);
 106 size_t aes_gcm_enc_256_kernel(const uint8_t * plaintext, uint64_t plaintext_length, uint8_t * ciphertext,
 107                               uint64_t *Xi, unsigned char ivec[16], const void *key);
 108 size_t aes_gcm_dec_128_kernel(const uint8_t * ciphertext, uint64_t plaintext_length, uint8_t * plaintext,
 109                               uint64_t *Xi, unsigned char ivec[16], const void *key);
 110 size_t aes_gcm_dec_192_kernel(const uint8_t * ciphertext, uint64_t plaintext_length, uint8_t * plaintext,
 111                               uint64_t *Xi, unsigned char ivec[16], const void *key);
 112 size_t aes_gcm_dec_256_kernel(const uint8_t * ciphertext, uint64_t plaintext_length, uint8_t * plaintext,
 113                               uint64_t *Xi, unsigned char ivec[16], const void *key);
 114 size_t armv8_aes_gcm_encrypt(const unsigned char *in, unsigned char *out, size_t len, const void *key,
 115                              unsigned char ivec[16], u64 *Xi);
 116 size_t armv8_aes_gcm_decrypt(const unsigned char *in, unsigned char *out, size_t len, const void *key,
 117                              unsigned char ivec[16], u64 *Xi);
 118 void gcm_ghash_v8(u64 Xi[2],const u128 Htable[16],const u8 *inp, size_t len);
 119 #    endif
 120 #   endif
 121 #  endif
 122 # endif /* OPENSSL_CPUID_OBJ */
 123
 124 # if     defined(AES_ASM) &&     ( \
 125          defined(__x86_64)       || defined(__x86_64__)  || \
 126          defined(_M_AMD64)       || defined(_M_X64)      )
 127 #  define AES_CBC_HMAC_SHA_CAPABLE 1
 128 #  define AESNI_CBC_HMAC_SHA_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
 129 # endif
 130
 131 # if     defined(AES_ASM) && !defined(I386_ONLY) &&      (  \
 132          ((defined(__i386)       || defined(__i386__)    || \
 133            defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
 134          defined(__x86_64)       || defined(__x86_64__)  || \
 135          defined(_M_AMD64)       || defined(_M_X64)      )
 136
 137 /* AES-NI section */
 138
 139 #  define AESNI_CAPABLE   (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
 140 #  ifdef VPAES_ASM
 141 #   define VPAES_CAPABLE   (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
 142 #  endif
 143 #  ifdef BSAES_ASM
 144 #   define BSAES_CAPABLE   (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
 145 #  endif
 146
 147 #  define AES_GCM_ENC_BYTES 32
 148 #  define AES_GCM_DEC_BYTES 16
 149
 150 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
 151                           AES_KEY *key);
 152 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
 153                           AES_KEY *key);
 154
 155 void aesni_encrypt(const unsigned char *in, unsigned char *out,
 156                    const AES_KEY *key);
 157 void aesni_decrypt(const unsigned char *in, unsigned char *out,
 158                    const AES_KEY *key);
 159
 160 void aesni_ecb_encrypt(const unsigned char *in,
 161                        unsigned char *out,
 162                        size_t length, const AES_KEY *key, int enc);
 163 void aesni_cbc_encrypt(const unsigned char *in,
 164                        unsigned char *out,
 165                        size_t length,
 166                        const AES_KEY *key, unsigned char *ivec, int enc);
 167 #  ifndef OPENSSL_NO_OCB
 168 void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
 169                        size_t blocks, const void *key,
 170                        size_t start_block_num,
 171                        unsigned char offset_i[16],
 172                        const unsigned char L_[][16],
 173                        unsigned char checksum[16]);
 174 void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
 175                        size_t blocks, const void *key,
 176                        size_t start_block_num,
 177                        unsigned char offset_i[16],
 178                        const unsigned char L_[][16],
 179                        unsigned char checksum[16]);
 180 #  endif /* OPENSSL_NO_OCB */
 181
 182 void aesni_ctr32_encrypt_blocks(const unsigned char *in,
 183                                 unsigned char *out,
 184                                 size_t blocks,
 185                                 const void *key, const unsigned char *ivec);
 186
 187 void aesni_xts_encrypt(const unsigned char *in,
 188                        unsigned char *out,
 189                        size_t length,
 190                        const AES_KEY *key1, const AES_KEY *key2,
 191                        const unsigned char iv[16]);
 192
 193 void aesni_xts_decrypt(const unsigned char *in,
 194                        unsigned char *out,
 195                        size_t length,
 196                        const AES_KEY *key1, const AES_KEY *key2,
 197                        const unsigned char iv[16]);
 198
 199 void aesni_ccm64_encrypt_blocks(const unsigned char *in,
 200                                 unsigned char *out,
 201                                 size_t blocks,
 202                                 const void *key,
 203                                 const unsigned char ivec[16],
 204                                 unsigned char cmac[16]);
 205
 206 void aesni_ccm64_decrypt_blocks(const unsigned char *in,
 207                                 unsigned char *out,
 208                                 size_t blocks,
 209                                 const void *key,
 210                                 const unsigned char ivec[16],
 211                                 unsigned char cmac[16]);
 212
 213 #  if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
 214 size_t aesni_gcm_encrypt(const unsigned char *in, unsigned char *out, size_t len,
 215                          const void *key, unsigned char ivec[16], u64 *Xi);
 216 size_t aesni_gcm_decrypt(const unsigned char *in, unsigned char *out, size_t len,
 217                          const void *key, unsigned char ivec[16], u64 *Xi);
 218 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in, size_t len);
 219
 220 #   define AES_gcm_encrypt aesni_gcm_encrypt
 221 #   define AES_gcm_decrypt aesni_gcm_decrypt
 222 #   define AES_GCM_ASM(ctx)    (ctx->ctr == aesni_ctr32_encrypt_blocks && \
 223                                 ctx->gcm.ghash == gcm_ghash_avx)
 224 #  endif
 225
 226
 227 # elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
 228
 229 /* Fujitsu SPARC64 X support */
 230 extern unsigned int OPENSSL_sparcv9cap_P[];
 231 #  include "sparc_arch.h"
 232
 233 #  define SPARC_AES_CAPABLE       (OPENSSL_sparcv9cap_P[1] & CFR_AES)
 234 #  define HWAES_CAPABLE           (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
 235 #  define HWAES_set_encrypt_key aes_fx_set_encrypt_key
 236 #  define HWAES_set_decrypt_key aes_fx_set_decrypt_key
 237 #  define HWAES_encrypt aes_fx_encrypt
 238 #  define HWAES_decrypt aes_fx_decrypt
 239 #  define HWAES_cbc_encrypt aes_fx_cbc_encrypt
 240 #  define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
 241
 242 void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
 243 void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
 244 void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
 245                     const AES_KEY *key);
 246 void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
 247                     const AES_KEY *key);
 248 /*
 249  * Key-length specific subroutines were chosen for following reason.
 250  * Each SPARC T4 core can execute up to 8 threads which share core's
 251  * resources. Loading as much key material to registers allows to
 252  * minimize references to shared memory interface, as well as amount
 253  * of instructions in inner loops [much needed on T4]. But then having
 254  * non-key-length specific routines would require conditional branches
 255  * either in inner loops or on subroutines' entries. Former is hardly
 256  * acceptable, while latter means code size increase to size occupied
 257  * by multiple key-length specific subroutines, so why fight?
 258  */
 259 void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
 260                            size_t len, const AES_KEY *key,
 261                            unsigned char *ivec);
 262 void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
 263                            size_t len, const AES_KEY *key,
 264                            unsigned char *ivec);
 265 void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
 266                            size_t len, const AES_KEY *key,
 267                            unsigned char *ivec);
 268 void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
 269                            size_t len, const AES_KEY *key,
 270                            unsigned char *ivec);
 271 void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
 272                            size_t len, const AES_KEY *key,
 273                            unsigned char *ivec);
 274 void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
 275                            size_t len, const AES_KEY *key,
 276                            unsigned char *ivec);
 277 void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
 278                              size_t blocks, const AES_KEY *key,
 279                              unsigned char *ivec);
 280 void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
 281                              size_t blocks, const AES_KEY *key,
 282                              unsigned char *ivec);
 283 void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
 284                              size_t blocks, const AES_KEY *key,
 285                              unsigned char *ivec);
 286 void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
 287                            size_t blocks, const AES_KEY *key1,
 288                            const AES_KEY *key2, const unsigned char *ivec);
 289 void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
 290                            size_t blocks, const AES_KEY *key1,
 291                            const AES_KEY *key2, const unsigned char *ivec);
 292 void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
 293                            size_t blocks, const AES_KEY *key1,
 294                            const AES_KEY *key2, const unsigned char *ivec);
 295 void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
 296                            size_t blocks, const AES_KEY *key1,
 297                            const AES_KEY *key2, const unsigned char *ivec);
 298
 299 # elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
 300 /* IBM S390X support */
 301 #  include "s390x_arch.h"
 302
 303
 304 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
 305 #  define S390X_AES_FC(keylen)  (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
 306
 307 /* Most modes of operation need km for partial block processing. */
 308 #  define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] &  \
 309                                 S390X_CAPBIT(S390X_AES_128))
 310 #  define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] &  \
 311                                 S390X_CAPBIT(S390X_AES_192))
 312 #  define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] &  \
 313                                 S390X_CAPBIT(S390X_AES_256))
 314
 315 #  define S390X_aes_128_cbc_CAPABLE     1       /* checked by callee */
 316 #  define S390X_aes_192_cbc_CAPABLE     1
 317 #  define S390X_aes_256_cbc_CAPABLE     1
 318
 319 #  define S390X_aes_128_ecb_CAPABLE     S390X_aes_128_CAPABLE
 320 #  define S390X_aes_192_ecb_CAPABLE     S390X_aes_192_CAPABLE
 321 #  define S390X_aes_256_ecb_CAPABLE     S390X_aes_256_CAPABLE
 322
 323 #  define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE &&           \
 324                                     (OPENSSL_s390xcap_P.kmo[0] &        \
 325                                      S390X_CAPBIT(S390X_AES_128)))
 326 #  define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE &&           \
 327                                     (OPENSSL_s390xcap_P.kmo[0] &        \
 328                                      S390X_CAPBIT(S390X_AES_192)))
 329 #  define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE &&           \
 330                                     (OPENSSL_s390xcap_P.kmo[0] &        \
 331                                      S390X_CAPBIT(S390X_AES_256)))
 332
 333 #  define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE &&           \
 334                                     (OPENSSL_s390xcap_P.kmf[0] &        \
 335                                      S390X_CAPBIT(S390X_AES_128)))
 336 #  define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE &&           \
 337                                     (OPENSSL_s390xcap_P.kmf[0] &        \
 338                                      S390X_CAPBIT(S390X_AES_192)))
 339 #  define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE &&           \
 340                                     (OPENSSL_s390xcap_P.kmf[0] &        \
 341                                      S390X_CAPBIT(S390X_AES_256)))
 342 #  define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] &       \
 343                                      S390X_CAPBIT(S390X_AES_128))
 344 #  define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] &       \
 345                                      S390X_CAPBIT(S390X_AES_192))
 346 #  define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] &       \
 347                                      S390X_CAPBIT(S390X_AES_256))
 348 #  define S390X_aes_128_cfb1_CAPABLE    0
 349 #  define S390X_aes_192_cfb1_CAPABLE    0
 350 #  define S390X_aes_256_cfb1_CAPABLE    0
 351
 352 #  define S390X_aes_128_ctr_CAPABLE     1       /* checked by callee */
 353 #  define S390X_aes_192_ctr_CAPABLE     1
 354 #  define S390X_aes_256_ctr_CAPABLE     1
 355
 356 #  define S390X_aes_128_xts_CAPABLE     1       /* checked by callee */
 357 #  define S390X_aes_256_xts_CAPABLE     1
 358
 359 # define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE &&        \
 360                                     (OPENSSL_s390xcap_P.kma[0] &    \
 361                                      S390X_CAPBIT(S390X_AES_128)))
 362 # define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE &&        \
 363                                     (OPENSSL_s390xcap_P.kma[0] &    \
 364                                      S390X_CAPBIT(S390X_AES_192)))
 365 # define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE &&        \
 366                                     (OPENSSL_s390xcap_P.kma[0] &    \
 367                                      S390X_CAPBIT(S390X_AES_256)))
 368
 369 #  define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE &&       \
 370                                     (OPENSSL_s390xcap_P.kmac[0] &   \
 371                                      S390X_CAPBIT(S390X_AES_128)))
 372 #  define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE &&       \
 373                                     (OPENSSL_s390xcap_P.kmac[0] &   \
 374                                      S390X_CAPBIT(S390X_AES_192)))
 375 #  define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE &&       \
 376                                     (OPENSSL_s390xcap_P.kmac[0] &   \
 377                                      S390X_CAPBIT(S390X_AES_256)))
 378 #  define S390X_CCM_AAD_FLAG    0x40
 379
 380 #  ifndef OPENSSL_NO_OCB
 381 #   define S390X_aes_128_ocb_CAPABLE    0
 382 #   define S390X_aes_192_ocb_CAPABLE    0
 383 #   define S390X_aes_256_ocb_CAPABLE    0
 384 #  endif /* OPENSSL_NO_OCB */
 385
 386 #  ifndef OPENSSL_NO_SIV
 387 #   define S390X_aes_128_siv_CAPABLE    0
 388 #   define S390X_aes_192_siv_CAPABLE    0
 389 #   define S390X_aes_256_siv_CAPABLE    0
 390 #  endif /* OPENSSL_NO_SIV */
 391
 392 /* Convert key size to function code: [16,24,32] -> [18,19,20]. */
 393 #  define S390X_AES_FC(keylen)  (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
 394 # endif
 395
 396 # if defined(HWAES_CAPABLE)
 397 int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
 398                           AES_KEY *key);
 399 int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
 400                           AES_KEY *key);
 401 void HWAES_encrypt(const unsigned char *in, unsigned char *out,
 402                    const AES_KEY *key);
 403 void HWAES_decrypt(const unsigned char *in, unsigned char *out,
 404                    const AES_KEY *key);
 405 void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 406                        size_t length, const AES_KEY *key,
 407                        unsigned char *ivec, const int enc);
 408 void HWAES_ecb_encrypt(const unsigned char *in, unsigned char *out,
 409                        size_t length, const AES_KEY *key,
 410                        const int enc);
 411 void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
 412                                 size_t len, const void *key,
 413                                 const unsigned char ivec[16]);
 414 void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
 415                        size_t len, const AES_KEY *key1,
 416                        const AES_KEY *key2, const unsigned char iv[16]);
 417 void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
 418                        size_t len, const AES_KEY *key1,
 419                        const AES_KEY *key2, const unsigned char iv[16]);
 420 #  ifndef OPENSSL_NO_OCB
 421 #   ifdef HWAES_ocb_encrypt
 422 void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
 423                        size_t blocks, const void *key,
 424                        size_t start_block_num,
 425                        unsigned char offset_i[16],
 426                        const unsigned char L_[][16],
 427                        unsigned char checksum[16]);
 428 #   else
 429 #     define HWAES_ocb_encrypt ((ocb128_f)NULL)
 430 #   endif
 431 #   ifdef HWAES_ocb_decrypt
 432 void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
 433                        size_t blocks, const void *key,
 434                        size_t start_block_num,
 435                        unsigned char offset_i[16],
 436                        const unsigned char L_[][16],
 437                        unsigned char checksum[16]);
 438 #   else
 439 #     define HWAES_ocb_decrypt ((ocb128_f)NULL)
 440 #   endif
 441 #  endif /* OPENSSL_NO_OCB */
 442
 443 # endif /* HWAES_CAPABLE */
 444
 445 #endif /* OSSL_AES_PLATFORM_H */