1=pod 2 3=head1 NAME 4 5EVP_SIGNATURE-DSA 6- The B<EVP_PKEY> DSA signature implementation 7 8=head1 DESCRIPTION 9 10Support for computing DSA signatures. 11See L<EVP_PKEY-DSA(7)> for information related to DSA keys. 12 13=head2 Signature Parameters 14 15The following signature parameters can be set using EVP_PKEY_CTX_set_params(). 16This may be called after EVP_PKEY_sign_init() or EVP_PKEY_verify_init(), 17and before calling EVP_PKEY_sign() or EVP_PKEY_verify(). 18 19=over 4 20 21=item "digest" (B<OSSL_SIGNATURE_PARAM_DIGEST>) <UTF8 string> 22 23=item "properties" (B<OSSL_SIGNATURE_PARAM_PROPERTIES>) <UTF8 string> 24 25=item "nonce-type" (B<OSSL_SIGNATURE_PARAM_NONCE_TYPE>) <unsigned integer> 26 27The settable parameters are described in L<provider-signature(7)>. 28 29=back 30 31The following signature parameters can be retrieved using 32EVP_PKEY_CTX_get_params(). 33 34=over 4 35 36=item "algorithm-id" (B<OSSL_SIGNATURE_PARAM_ALGORITHM_ID>) <octet string> 37 38=item "digest" (B<OSSL_SIGNATURE_PARAM_DIGEST>) <UTF8 string> 39 40=item "nonce-type" (B<OSSL_SIGNATURE_PARAM_NONCE_TYPE>) <unsigned integer> 41 42The gettable parameters are described in L<provider-signature(7)>. 43 44=back 45 46=head1 SEE ALSO 47 48L<EVP_PKEY_CTX_set_params(3)>, 49L<EVP_PKEY_sign(3)>, 50L<EVP_PKEY_verify(3)>, 51L<provider-signature(7)>, 52 53=head1 COPYRIGHT 54 55Copyright 2020-2023 The OpenSSL Project Authors. All Rights Reserved. 56 57Licensed under the Apache License 2.0 (the "License"). You may not use 58this file except in compliance with the License. You can obtain a copy 59in the file LICENSE in the source distribution or at 60L<https://www.openssl.org/source/license.html>. 61 62=cut 63
