EVP_seed_cbc.pod 1.5 KB

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  1. =pod
  2. =head1 NAME
  3. EVP_seed_cbc,
  4. EVP_seed_cfb,
  5. EVP_seed_cfb128,
  6. EVP_seed_ecb,
  7. EVP_seed_ofb
  8. - EVP SEED cipher
  9. =head1 SYNOPSIS
  10. #include <openssl/evp.h>
  11. const EVP_CIPHER *EVP_seed_cbc(void);
  12. const EVP_CIPHER *EVP_seed_cfb(void);
  13. const EVP_CIPHER *EVP_seed_cfb128(void);
  14. const EVP_CIPHER *EVP_seed_ecb(void);
  15. const EVP_CIPHER *EVP_seed_ofb(void);
  16. =head1 DESCRIPTION
  17. The SEED encryption algorithm for EVP.
  18. All modes below use a key length of 128 bits and acts on blocks of 128-bits.
  19. =over 4
  20. =item EVP_seed_cbc(),
  21. EVP_seed_cfb(),
  22. EVP_seed_cfb128(),
  23. EVP_seed_ecb(),
  24. EVP_seed_ofb()
  25. The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
  26. =back
  27. =head1 NOTES
  28. Developers should be aware of the negative performance implications of
  29. calling these functions multiple times and should consider using
  30. L<EVP_CIPHER_fetch(3)> with L<EVP_CIPHER-SEED(7)> instead.
  31. See L<crypto(7)/Performance> for further information.
  32. =head1 RETURN VALUES
  33. These functions return an B<EVP_CIPHER> structure that contains the
  34. implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
  35. details of the B<EVP_CIPHER> structure.
  36. =head1 SEE ALSO
  37. L<evp(7)>,
  38. L<EVP_EncryptInit(3)>,
  39. L<EVP_CIPHER_meth_new(3)>
  40. =head1 COPYRIGHT
  41. Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
  42. Licensed under the Apache License 2.0 (the "License"). You may not use
  43. this file except in compliance with the License. You can obtain a copy
  44. in the file LICENSE in the source distribution or at
  45. L<https://www.openssl.org/source/license.html>.
  46. =cut