NAME

       EVP_SIGNATURE-HMAC, EVP_SIGNATURE-Siphash, EVP_SIGNATURE-Poly1305, EVP_SIGNATURE-CMAC - The legacy
       EVP_PKEY MAC signature implementations

DESCRIPTION

       The algorithms described here have legacy support for creating MACs using EVP_DigestSignInit(3) and
       related functions. This is not the preferred way of creating MACs. Instead you should use the newer
       EVP_MAC_init(3) functions.  This mechanism is provided for backwards compatibility with older versions of
       OpenSSL.

       The same signature parameters can be set using EVP_PKEY_CTX_set_params() as can be set via
       EVP_MAC_CTX_set_params() for the underlying EVP_MAC. See EVP_MAC-HMAC(7), EVP_MAC-Siphash(7),
       EVP_MAC-Poly1305(7) and EVP_MAC-CMAC(7) for details.

        See L<EVP_PKEY-HMAC(7)>, L<EVP_PKEY-Siphash(7)>, L<EVP_PKEY-Poly1305(7)> or
        L<EVP_PKEY-CMAC(7)> for details about parameters that are supported during the
        creation of an EVP_PKEY.

SEE ALSO

       EVP_MAC_init(3), EVP_DigestSignInit(3), EVP_PKEY-HMAC(7), EVP_PKEY-Siphash(7), EVP_PKEY-Poly1305(7),
       EVP_PKEY-CMAC(7), EVP_MAC-HMAC(7), EVP_MAC-Siphash(7), EVP_MAC-Poly1305(7), EVP_MAC-CMAC(7),
       provider-signature(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>.