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EVP_SHA224(3)			    OpenSSL			 EVP_SHA224(3)

NAME
       EVP_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 VALUES
       These 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)

COPYRIGHT
       Copyright 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>.

1.1.1a				  2018-11-20			 EVP_SHA224(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | CONFORMING TO | SEE ALSO | COPYRIGHT

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