providers/implementations/ciphers/cipher_seed_hw.c

   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 /*
  11  * SEED low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include "cipher_seed.h"
  17
  18 static int cipher_hw_seed_initkey(PROV_CIPHER_CTX *ctx,
  19                                   const unsigned char *key, size_t keylen)
  20 {
  21     PROV_SEED_CTX *sctx =  (PROV_SEED_CTX *)ctx;
  22
  23     SEED_set_key(key, &(sctx->ks.ks));
  24     return 1;
  25 }
  26
  27 # define PROV_CIPHER_HW_seed_mode(mode, UCMODE)                                \
  28 IMPLEMENT_CIPHER_HW_##UCMODE(mode, seed, PROV_SEED_CTX, SEED_KEY_SCHEDULE,     \
  29                              SEED_##mode)                                      \
  30 static const PROV_CIPHER_HW seed_##mode = {                                    \
  31     cipher_hw_seed_initkey,                                                    \
  32     cipher_hw_seed_##mode##_cipher                                             \
  33 };                                                                             \
  34 const PROV_CIPHER_HW *PROV_CIPHER_HW_seed_##mode(size_t keybits)               \
  35 {                                                                              \
  36     return &seed_##mode;                                                       \
  37 }
  38
  39 PROV_CIPHER_HW_seed_mode(cbc, CBC)
  40 PROV_CIPHER_HW_seed_mode(ecb, ECB)
  41 PROV_CIPHER_HW_seed_mode(ofb128, OFB)
  42 PROV_CIPHER_HW_seed_mode(cfb128, CFB)