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EVP_BLAKE2B512(3)		    OpenSSL		     EVP_BLAKE2B512(3)

NAME
       EVP_blake2b512, EVP_blake2s256 -	BLAKE2 For EVP

SYNOPSIS
	#include <openssl/evp.h>

	const EVP_MD *EVP_blake2b512(void);
	const EVP_MD *EVP_blake2s256(void);

DESCRIPTION
       BLAKE2 is an improved version of	BLAKE, which was submitted to the NIST
       SHA-3 algorithm competition. The	BLAKE2s	and BLAKE2b algorithms are
       described in RFC	7693.

       EVP_blake2s256()
	   The BLAKE2s algorithm that produces a 256-bit output	from a given
	   input.

       EVP_blake2b512()
	   The BLAKE2b algorithm that produces a 512-bit output	from a given
	   input.

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
       RFC 7693.

NOTES
       While the BLAKE2b and BLAKE2s algorithms	supports a variable length
       digest, this implementation outputs a digest of a fixed length (the
       maximum length supported), which	is 512-bits for	BLAKE2b	and 256-bits
       for BLAKE2s.

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_BLAKE2B512(3)

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

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