EVP_sha3_224, EVP_sha3_256, EVP_sha3_384, EVP_sha3_512, EVP_shake128,
EVP_shake256 - SHA-3 For EVP
#include <openssl/evp.h>
const EVP_MD *EVP_sha3_224(void);
const EVP_MD *EVP_sha3_256(void);
const EVP_MD *EVP_sha3_384(void);
const EVP_MD *EVP_sha3_512(void);
const EVP_MD *EVP_shake128(void);
const EVP_MD *EVP_shake256(void);
SHA-3 (Secure Hash Algorithm 3) is a family of cryptographic hash functions
standardized in NIST FIPS 202, first published in 2015. It is based on the
Keccak algorithm.
-
EVP_sha3_224(), EVP_sha3_256(),
EVP_sha3_384(), EVP_sha3_512()
- The SHA-3 SHA-3-224, SHA-3-256, SHA-3-384, and SHA-3-512
algorithms respectively. They produce 224, 256, 384 and 512 bits of output
from a given input.
-
EVP_shake128(), EVP_shake256()
- The SHAKE-128 and SHAKE-256 Extendable Output Functions
(XOF) that can generate a variable hash length.
Specifically, EVP_shake128 provides an overall security of 128 bits,
while EVP_shake256 provides that of 256 bits.
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-SHA3(7) or
EVP_MD-SHAKE(7)
instead. See "Performance" in
crypto(7) for further
information.
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.
NIST FIPS 202.
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>.