EVP_blake2b512, EVP_blake2s256 - BLAKE2 For EVP
#include <openssl/evp.h>
const EVP_MD *EVP_blake2b512(void);
const EVP_MD *EVP_blake2s256(void);
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.
- EVP_blake2s256()
- The BLAKE2s algorithm that produces a 256-bit output from a
given input.
- EVP_blake2b512()
- The BLAKE2b algorithm that produces a 512-bit output from a
given input.
Developers should be aware of the negative performance implications of calling
these functions multiple times and should consider using
EVP_MD_fetch(3) with
EVP_MD-BLAKE2(7) instead. See
"Performance" in
crypto(7) for further information.
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.
These functions return a
EVP_MD structure that contains the
implementation of the message digest. See
EVP_MD_meth_new(3) for
details of the
EVP_MD structure.
RFC 7693.
evp(7),
EVP_DigestInit(3)
Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (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
<
https://www.openssl.org/source/license.html>.