1*b077aed3SPierre Pronchery=pod 2*b077aed3SPierre Pronchery 3*b077aed3SPierre Pronchery=head1 NAME 4*b077aed3SPierre Pronchery 5*b077aed3SPierre ProncheryEVP_SIGNATURE-HMAC, EVP_SIGNATURE-Siphash, EVP_SIGNATURE-Poly1305, 6*b077aed3SPierre ProncheryEVP_SIGNATURE-CMAC 7*b077aed3SPierre Pronchery- The legacy B<EVP_PKEY> MAC signature implementations 8*b077aed3SPierre Pronchery 9*b077aed3SPierre Pronchery=head1 DESCRIPTION 10*b077aed3SPierre Pronchery 11*b077aed3SPierre ProncheryThe algorithms described here have legacy support for creating MACs using 12*b077aed3SPierre ProncheryL<EVP_DigestSignInit(3)> and related functions. This is not the preferred way of 13*b077aed3SPierre Proncherycreating MACs. Instead you should use the newer L<EVP_MAC_init(3)> functions. 14*b077aed3SPierre ProncheryThis mechanism is provided for backwards compatibility with older versions of 15*b077aed3SPierre ProncheryOpenSSL. 16*b077aed3SPierre Pronchery 17*b077aed3SPierre ProncheryThe same signature parameters can be set using EVP_PKEY_CTX_set_params() as can 18*b077aed3SPierre Proncherybe set via EVP_MAC_CTX_set_params() for the underlying EVP_MAC. See 19*b077aed3SPierre ProncheryL<EVP_MAC-HMAC(7)>, L<EVP_MAC-Siphash(7)>, L<EVP_MAC-Poly1305(7)> and 20*b077aed3SPierre ProncheryL<EVP_MAC-CMAC(7)> for details. 21*b077aed3SPierre Pronchery 22*b077aed3SPierre Pronchery See L<EVP_PKEY-HMAC(7)>, L<EVP_PKEY-Siphash(7)>, L<EVP_PKEY-Poly1305(7)> or 23*b077aed3SPierre Pronchery L<EVP_PKEY-CMAC(7)> for details about parameters that are supported during the 24*b077aed3SPierre Pronchery creation of an EVP_PKEY. 25*b077aed3SPierre Pronchery 26*b077aed3SPierre Pronchery=head1 SEE ALSO 27*b077aed3SPierre Pronchery 28*b077aed3SPierre ProncheryL<EVP_MAC_init(3)>, 29*b077aed3SPierre ProncheryL<EVP_DigestSignInit(3)>, 30*b077aed3SPierre ProncheryL<EVP_PKEY-HMAC(7)>, 31*b077aed3SPierre ProncheryL<EVP_PKEY-Siphash(7)>, 32*b077aed3SPierre ProncheryL<EVP_PKEY-Poly1305(7)>, 33*b077aed3SPierre ProncheryL<EVP_PKEY-CMAC(7)>, 34*b077aed3SPierre ProncheryL<EVP_MAC-HMAC(7)>, 35*b077aed3SPierre ProncheryL<EVP_MAC-Siphash(7)>, 36*b077aed3SPierre ProncheryL<EVP_MAC-Poly1305(7)>, 37*b077aed3SPierre ProncheryL<EVP_MAC-CMAC(7)>, 38*b077aed3SPierre ProncheryL<provider-signature(7)>, 39*b077aed3SPierre Pronchery 40*b077aed3SPierre Pronchery=head1 COPYRIGHT 41*b077aed3SPierre Pronchery 42*b077aed3SPierre ProncheryCopyright 2020 The OpenSSL Project Authors. All Rights Reserved. 43*b077aed3SPierre Pronchery 44*b077aed3SPierre ProncheryLicensed under the Apache License 2.0 (the "License"). You may not use 45*b077aed3SPierre Proncherythis file except in compliance with the License. You can obtain a copy 46*b077aed3SPierre Proncheryin the file LICENSE in the source distribution or at 47*b077aed3SPierre ProncheryL<https://www.openssl.org/source/license.html>. 48*b077aed3SPierre Pronchery 49*b077aed3SPierre Pronchery=cut 50