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EVP_MD-SHAKE(7)			    OpenSSL		       EVP_MD-SHAKE(7)

NAME
       EVP_MD-SHAKE, EVP_MD-KECCAK-KMAC	- The SHAKE / KECCAK family EVP_MD
       implementations

DESCRIPTION
       Support for computing SHAKE or KECCAK-KMAC digests through the EVP_MD
       API.

       KECCAK-KMAC is a	special	digest that's used by the KMAC EVP_MAC
       implementation (see EVP_MAC-KMAC(7)).

   Identities
       This implementation is only available with the default provider,	and
       includes	the following varieties:

       KECCAK-KMAC-128
	   Known names are "KECCAK-KMAC-128" and "KECCAK-KMAC128"

       KECCAK-KMAC-256
	   Known names are "KECCAK-KMAC-256" and "KECCAK-KMAC256"

       SHAKE-128
	   Known names are "SHAKE-128" and "SHAKE128"

       SHAKE-256
	   Known names are "SHAKE-256" and "SHAKE256"

   Gettable Parameters
       This implementation supports the	common gettable	parameters described
       in EVP_MD-common(7).

   Settable Context Parameters
       These implementations support the following OSSL_PARAM(3) entries,
       settable	for an EVP_MD_CTX with EVP_MD_CTX_set_params(3):

       "xoflen"	(OSSL_DIGEST_PARAM_XOFLEN) <unsigned integer>
	   Sets	the digest length for extendable output	functions.  The	length
	   of the "xoflen" parameter should not	exceed that of a size_t.

SEE ALSO
       EVP_MD_CTX_set_params(3), provider-digest(7), OSSL_PROVIDER-default(7)

COPYRIGHT
       Copyright 2020 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>.

3.0.0-alpha6			  2020-08-06		       EVP_MD-SHAKE(7)

NAME | DESCRIPTION | SEE ALSO | COPYRIGHT

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