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EVP_SHA3_224(3)			    OpenSSL		       EVP_SHA3_224(3)

NAME
       EVP_sha3_224, EVP_sha3_256, EVP_sha3_384, EVP_sha3_512, EVP_shake128,
       EVP_shake256 - SHA-3 For	EVP

SYNOPSIS
	#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);

DESCRIPTION
       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.

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 202.

SEE ALSO
       evp(7), EVP_DigestInit(3)

COPYRIGHT
       Copyright 2017 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>.

1.1.1d				  2019-09-10		       EVP_SHA3_224(3)

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

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