cipher_cast5.c 1.7 KB

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  1. /*
  2. * Copyright 2019-2021 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. * CAST low level APIs are deprecated for public use, but still ok for
  11. * internal use.
  12. */
  13. #include "internal/deprecated.h"
  14. /* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */
  15. #include <openssl/proverr.h>
  16. #include "cipher_cast.h"
  17. #include "prov/implementations.h"
  18. #include "prov/providercommon.h"
  19. #define CAST5_FLAGS PROV_CIPHER_FLAG_VARIABLE_LENGTH
  20. static OSSL_FUNC_cipher_freectx_fn cast5_freectx;
  21. static OSSL_FUNC_cipher_dupctx_fn cast5_dupctx;
  22. static void cast5_freectx(void *vctx)
  23. {
  24. PROV_CAST_CTX *ctx = (PROV_CAST_CTX *)vctx;
  25. ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
  26. OPENSSL_clear_free(ctx, sizeof(*ctx));
  27. }
  28. static void *cast5_dupctx(void *ctx)
  29. {
  30. PROV_CAST_CTX *in = (PROV_CAST_CTX *)ctx;
  31. PROV_CAST_CTX *ret;
  32. if (!ossl_prov_is_running())
  33. return NULL;
  34. ret = OPENSSL_malloc(sizeof(*ret));
  35. if (ret == NULL)
  36. return NULL;
  37. *ret = *in;
  38. return ret;
  39. }
  40. /* ossl_cast5128ecb_functions */
  41. IMPLEMENT_var_keylen_cipher(cast5, CAST, ecb, ECB, CAST5_FLAGS, 128, 64, 0, block)
  42. /* ossl_cast5128cbc_functions */
  43. IMPLEMENT_var_keylen_cipher(cast5, CAST, cbc, CBC, CAST5_FLAGS, 128, 64, 64, block)
  44. /* ossl_cast5128ofb64_functions */
  45. IMPLEMENT_var_keylen_cipher(cast5, CAST, ofb64, OFB, CAST5_FLAGS, 128, 8, 64, stream)
  46. /* ossl_cast5128cfb64_functions */
  47. IMPLEMENT_var_keylen_cipher(cast5, CAST, cfb64, CFB, CAST5_FLAGS, 128, 8, 64, stream)