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50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
=pod
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=head1 NAME
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EVP_SIGNATURE-HMAC, EVP_SIGNATURE-Siphash, EVP_SIGNATURE-Poly1305,
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EVP_SIGNATURE-CMAC
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- The legacy B<EVP_PKEY> MAC signature implementations
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=head1 DESCRIPTION
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The algorithms described here have legacy support for creating MACs using
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L<EVP_DigestSignInit(3)> and related functions. This is not the preferred way of
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creating MACs. Instead you should use the newer L<EVP_MAC_init(3)> functions.
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This mechanism is provided for backwards compatibility with older versions of
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OpenSSL.
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The same signature parameters can be set using EVP_PKEY_CTX_set_params() as can
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be set via EVP_MAC_CTX_set_params() for the underlying EVP_MAC. See
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L<EVP_MAC-HMAC(7)>, L<EVP_MAC-Siphash(7)>, L<EVP_MAC-Poly1305(7)> and
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L<EVP_MAC-CMAC(7)> for details.
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See L<EVP_PKEY-HMAC(7)>, L<EVP_PKEY-Siphash(7)>, L<EVP_PKEY-Poly1305(7)> or
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L<EVP_PKEY-CMAC(7)> for details about parameters that are supported during the
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creation of an EVP_PKEY.
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=head1 SEE ALSO
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L<EVP_MAC_init(3)>,
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L<EVP_DigestSignInit(3)>,
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L<EVP_PKEY-HMAC(7)>,
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L<EVP_PKEY-Siphash(7)>,
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L<EVP_PKEY-Poly1305(7)>,
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L<EVP_PKEY-CMAC(7)>,
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L<EVP_MAC-HMAC(7)>,
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L<EVP_MAC-Siphash(7)>,
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L<EVP_MAC-Poly1305(7)>,
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L<EVP_MAC-CMAC(7)>,
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L<provider-signature(7)>,
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=head1 COPYRIGHT
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Copyright 2020 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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