e_cast.c 1.2 KB

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  1. /*
  2. * Copyright 1995-2016 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. #include <stdio.h>
  10. #include "internal/cryptlib.h"
  11. #ifndef OPENSSL_NO_CAST
  12. # include <openssl/evp.h>
  13. # include <openssl/objects.h>
  14. # include "internal/evp_int.h"
  15. # include <openssl/cast.h>
  16. static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
  17. const unsigned char *iv, int enc);
  18. typedef struct {
  19. CAST_KEY ks;
  20. } EVP_CAST_KEY;
  21. # define data(ctx) EVP_C_DATA(EVP_CAST_KEY,ctx)
  22. IMPLEMENT_BLOCK_CIPHER(cast5, ks, CAST, EVP_CAST_KEY,
  23. NID_cast5, 8, CAST_KEY_LENGTH, 8, 64,
  24. EVP_CIPH_VARIABLE_LENGTH, cast_init_key, NULL,
  25. EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL)
  26. static int cast_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
  27. const unsigned char *iv, int enc)
  28. {
  29. CAST_set_key(&data(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx), key);
  30. return 1;
  31. }
  32. #endif