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.
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>.