mirror of https://github.com/openssl/openssl.git
66 lines
1.4 KiB
Plaintext
66 lines
1.4 KiB
Plaintext
|
=pod
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
EVP_blake2b512,
|
||
|
|
EVP_blake2s256
|
||
|
|
- BLAKE2 For EVP
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
#include <openssl/evp.h>
|
||
|
|
|
||
|
|
const EVP_MD *EVP_blake2b512(void);
|
||
|
|
const EVP_MD *EVP_blake2s256(void);
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
BLAKE2 is an improved version of BLAKE, which was submitted to the NIST SHA-3
|
||
|
|
algorithm competition. The BLAKE2s and BLAKE2b algorithms are described in
|
||
|
|
RFC 7693.
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item EVP_blake2s256()
|
||
|
|
|
||
|
|
The BLAKE2s algorithm that produces a 256-bit output from a given input.
|
||
|
|
|
||
|
|
=item EVP_blake2b512()
|
||
|
|
|
||
|
|
The BLAKE2b algorithm that produces a 512-bit output from a given input.
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head1 RETURN VALUES
|
||
|
|
|
||
|
|
These functions return a B<EVP_MD> structure that contains the
|
||
|
|
implementation of the symmetric cipher. See L<EVP_MD_meth_new(3)> for
|
||
|
|
details of the B<EVP_MD> structure.
|
||
|
|
|
||
|
|
=head1 CONFORMING TO
|
||
|
|
|
||
|
|
RFC 7693.
|
||
|
|
|
||
|
|
=head1 NOTES
|
||
|
|
|
||
|
|
While the BLAKE2b and BLAKE2s algorithms supports a variable length digest,
|
||
|
|
this implementation outputs a digest of a fixed length (the maximum length
|
||
|
|
supported), which is 512-bits for BLAKE2b and 256-bits for BLAKE2s.
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<evp(7)>,
|
||
|
|
L<EVP_DigestInit(3)>
|
||
|
|
|
||
|
|
=head1 COPYRIGHT
|
||
|
|
|
||
|
|
Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
|
||
|
|
|
||
|
|
Licensed under the OpenSSL license (the "License"). You may not use
|
||
|
|
this file except in compliance with the License. You can obtain a copy
|
||
|
|
in the file LICENSE in the source distribution or at
|
||
|
|
L<https://www.openssl.org/source/license.html>.
|
||
|
|
|
||
|
|
=cut
|
||
|
|
|