EVP_SHA224 - Online Linux Manual PageSection : 3
Updated : 2021-03-26
Source : 1.1.1k
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 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 <https://www.openssl.org/source/license.html>. 0
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