crypto/evp/e_bf.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #ifndef OPENSSL_NO_BF
  13 # include <openssl/evp.h>
  14 # include "internal/evp_int.h"
  15 # include <openssl/objects.h>
  16 # include <openssl/blowfish.h>
  17
  18 static int bf_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
  19                        const unsigned char *iv, int enc);
  20
  21 typedef struct {
  22     BF_KEY ks;
  23 } EVP_BF_KEY;
  24
  25 # define data(ctx)       EVP_C_DATA(EVP_BF_KEY,ctx)
  26
  27 IMPLEMENT_BLOCK_CIPHER(bf, ks, BF, EVP_BF_KEY, NID_bf, 8, 16, 8, 64,
  28                        EVP_CIPH_VARIABLE_LENGTH, bf_init_key, NULL,
  29                        EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
  30
  31 static int bf_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
  32                        const unsigned char *iv, int enc)
  33 {
  34     BF_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
  35     return 1;
  36 }
  37
  38 #endif