EVP_md4.pod 1.3 KB

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  1. =pod
  2. =head1 NAME
  3. EVP_md4
  4. - MD4 For EVP
  5. =head1 SYNOPSIS
  6. #include <openssl/evp.h>
  7. const EVP_MD *EVP_md4(void);
  8. =head1 DESCRIPTION
  9. MD4 is a cryptographic hash function standardized in RFC 1320 and designed by
  10. Ronald Rivest, first published in 1990. This implementation is only available
  11. with the legacy provider.
  12. =over 4
  13. =item EVP_md4()
  14. The MD4 algorithm which produces a 128-bit output from a given input.
  15. =back
  16. =head1 NOTES
  17. Developers should be aware of the negative performance implications of
  18. calling this function multiple times and should consider using
  19. L<EVP_MD_fetch(3)> with L<EVP_MD-MD4(7)> instead.
  20. See L<crypto(7)/Performance> for further information.
  21. =head1 RETURN VALUES
  22. These functions return a B<EVP_MD> structure that contains the
  23. implementation of the message digest. See L<EVP_MD_meth_new(3)> for
  24. details of the B<EVP_MD> structure.
  25. =head1 CONFORMING TO
  26. IETF RFC 1320.
  27. =head1 SEE ALSO
  28. L<evp(7)>,
  29. L<provider(7)>,
  30. L<EVP_DigestInit(3)>
  31. =head1 COPYRIGHT
  32. Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
  33. Licensed under the Apache License 2.0 (the "License"). You may not use
  34. this file except in compliance with the License. You can obtain a copy
  35. in the file LICENSE in the source distribution or at
  36. L<https://www.openssl.org/source/license.html>.
  37. =cut