crypto/evp/e_seed.c

   1 /*
   2  * Copyright 2007-2016 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 #include <openssl/opensslconf.h>
  11 #ifdef OPENSSL_NO_SEED
  12 NON_EMPTY_TRANSLATION_UNIT
  13 #else
  14 # include <openssl/evp.h>
  15 # include <openssl/err.h>
  16 # include <string.h>
  17 # include <assert.h>
  18 # include <openssl/seed.h>
  19 # include "internal/evp_int.h"
  20
  21 static int seed_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
  22                          const unsigned char *iv, int enc);
  23
  24 typedef struct {
  25     SEED_KEY_SCHEDULE ks;
  26 } EVP_SEED_KEY;
  27
  28 IMPLEMENT_BLOCK_CIPHER(seed, ks, SEED, EVP_SEED_KEY, NID_seed,
  29                        16, 16, 16, 128, EVP_CIPH_FLAG_DEFAULT_ASN1,
  30                        seed_init_key, 0, 0, 0, 0)
  31
  32 static int seed_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
  33                          const unsigned char *iv, int enc)
  34 {
  35     SEED_set_key(key, &EVP_C_DATA(EVP_SEED_KEY,ctx)->ks);
  36     return 1;
  37 }
  38
  39 #endif