2019-08-28 15:13:21 +08:00
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=pod
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=head1 NAME
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EVP_MAC-KMAC, EVP_MAC-KMAC256, EVP_MAC-KMAC256
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- The KMAC EVP_MAC implementations
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=head1 DESCRIPTION
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Support for computing KMAC MACs through the B<EVP_MAC> API.
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=head2 Identity
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These implementations are identified with one of these names and
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properties, to be used with EVP_MAC_fetch():
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=over 4
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=item "KMAC128", "default=yes"
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=item "KMAC256", "default=yes"
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=back
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=head2 Supported parameters
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The general description of these parameters can be found in
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L<EVP_MAC(3)/PARAMETERS>.
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All these parameters can be set with EVP_MAC_CTX_set_params().
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Furthermore, the "size" parameter can be retrieved with
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EVP_MAC_CTX_get_params(), or with EVP_MAC_size().
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2019-09-25 18:27:36 +08:00
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The length of the "size" parameter should not exceed that of a B<size_t>.
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2019-08-28 15:13:21 +08:00
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=over 4
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=item B<OSSL_MAC_PARAM_KEY> ("key") <octet string>
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=item B<OSSL_MAC_PARAM_CUSTOM> ("custom") <octet string>
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2019-09-25 18:27:36 +08:00
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=item B<OSSL_MAC_PARAM_SIZE> ("size") <unsigned integer>
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2019-08-28 15:13:21 +08:00
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=item B<OSSL_MAC_PARAM_XOF>
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=back
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The "xof" parameter value is exptect to be 1 or 0. Use 1 to enable XOF
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mode. If XOF is enabled then the output len that is encoded as part of
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the input stream is set to zero.
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=head1 SEE ALSO
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L<EVP_MAC_CTX_get_params(3)>, L<EVP_MAC_CTX_set_params(3)>,
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2019-09-17 06:46:49 +08:00
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L<EVP_MAC(3)/PARAMETERS>, L<OSSL_PARAM(3)>
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2019-08-28 15:13:21 +08:00
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=head1 COPYRIGHT
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Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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