EVP_SHA224 - Online Linux Manual PageSection : 3ossl
Updated : 2022-03-15
Source : 3.0.2
Note : OpenSSL
NAMEEVP_sha224, EVP_sha256, EVP_sha512_224, EVP_sha512_256, EVP_sha384, EVP_sha512 ​− SHA−2 For EVP
SYNOPSIS​ #include <openssl/evp.h> ​ ​ const EVP_MD *EVP_sha224(void); ​ const EVP_MD *EVP_sha256(void); ​ const EVP_MD *EVP_sha512_224(void); ​ const EVP_MD *EVP_sha512_256(void); ​ const EVP_MD *EVP_sha384(void); ​ const EVP_MD *EVP_sha512(void);
DESCRIPTION​SHA−2 (Secure Hash Algorithm 2) is a family of cryptographic hash functions standardized in NIST FIPS 180−4, first published in 2001. EVP_sha224(), EVP_sha256(), EVP_sha512_224, EVP_sha512_256, EVP_sha384(), EVP_sha512() The SHA−2 SHA−224, SHA−256, SHA−512/224, SHA512/256, SHA−384 and SHA−512 algorithms, which generate 224, 256, 224, 256, 384 and 512 bits respectively of output from a given input. The two algorithms: SHA−512/224 and SHA512/256 are truncated forms of the ​SHA−512 algorithm. They are distinct from SHA−224 and SHA−256 even though their outputs are of the same size.
RETURN VALUESThese functions return a EVP_MD structure that contains the implementation of the symmetric cipher. See EVP_MD_meth_new (3) for details of the EVP_MD structure.
CONFORMING TO​NIST FIPS 180−4.
SEE ALSO​evp (7), ​EVP_DigestInit (3)
COPYRIGHTCopyright 2017−2018 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>. 0
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