EVP_MD-SHAKE(7) - phpMan

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

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>.

3.0.2                                       2024-08-20                         EVP_MD-SHAKE(7SSL)

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