cipher_blowfish.c 1.7 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758
  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. /* Dispatch functions for Blowfish cipher modes ecb, cbc, ofb, cfb */
  10. /*
  11. * BF low level APIs are deprecated for public use, but still ok for internal
  12. * use.
  13. */
  14. #include "internal/deprecated.h"
  15. #include "cipher_blowfish.h"
  16. #include "prov/implementations.h"
  17. #include "prov/providercommon.h"
  18. #define BF_FLAGS PROV_CIPHER_FLAG_VARIABLE_LENGTH
  19. static OSSL_FUNC_cipher_freectx_fn blowfish_freectx;
  20. static OSSL_FUNC_cipher_dupctx_fn blowfish_dupctx;
  21. static void blowfish_freectx(void *vctx)
  22. {
  23. PROV_BLOWFISH_CTX *ctx = (PROV_BLOWFISH_CTX *)vctx;
  24. ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
  25. OPENSSL_clear_free(ctx, sizeof(*ctx));
  26. }
  27. static void *blowfish_dupctx(void *ctx)
  28. {
  29. PROV_BLOWFISH_CTX *in = (PROV_BLOWFISH_CTX *)ctx;
  30. PROV_BLOWFISH_CTX *ret;
  31. if (!ossl_prov_is_running())
  32. return NULL;
  33. ret = OPENSSL_malloc(sizeof(*ret));
  34. if (ret == NULL)
  35. return NULL;
  36. *ret = *in;
  37. return ret;
  38. }
  39. /* bf_ecb_functions */
  40. IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, ecb, ECB, BF_FLAGS, 128, 64, 0, block)
  41. /* bf_cbc_functions */
  42. IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, cbc, CBC, BF_FLAGS, 128, 64, 64, block)
  43. /* bf_ofb_functions */
  44. IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, ofb64, OFB, BF_FLAGS, 128, 8, 64, stream)
  45. /* bf_cfb_functions */
  46. IMPLEMENT_var_keylen_cipher(blowfish, BLOWFISH, cfb64, CFB, BF_FLAGS, 128, 8, 64, stream)