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- =pod
- =head1 NAME
- EVP_SIGNATURE-DSA
- - The B<EVP_PKEY> DSA signature implementation
- =head1 DESCRIPTION
- Support for computing DSA signatures. The signature produced with
- L<EVP_PKEY_sign(3)> is DER encoded ASN.1 in the form described in
- RFC 3279, section 2.2.2.
- See L<EVP_PKEY-DSA(7)> for information related to DSA keys.
- =head2 Signature Parameters
- The following signature parameters can be set using EVP_PKEY_CTX_set_params().
- This may be called after EVP_PKEY_sign_init() or EVP_PKEY_verify_init(),
- and before calling EVP_PKEY_sign() or EVP_PKEY_verify().
- =over 4
- =item "digest" (B<OSSL_SIGNATURE_PARAM_DIGEST>) <UTF8 string>
- =item "properties" (B<OSSL_SIGNATURE_PARAM_PROPERTIES>) <UTF8 string>
- =item "nonce-type" (B<OSSL_SIGNATURE_PARAM_NONCE_TYPE>) <unsigned integer>
- The settable parameters are described in L<provider-signature(7)>.
- =back
- The following signature parameters can be retrieved using
- EVP_PKEY_CTX_get_params().
- =over 4
- =item "algorithm-id" (B<OSSL_SIGNATURE_PARAM_ALGORITHM_ID>) <octet string>
- =item "digest" (B<OSSL_SIGNATURE_PARAM_DIGEST>) <UTF8 string>
- =item "nonce-type" (B<OSSL_SIGNATURE_PARAM_NONCE_TYPE>) <unsigned integer>
- The gettable parameters are described in L<provider-signature(7)>.
- =back
- =head1 SEE ALSO
- L<EVP_PKEY_CTX_set_params(3)>,
- L<EVP_PKEY_sign(3)>,
- L<EVP_PKEY_verify(3)>,
- L<provider-signature(7)>,
- =head1 COPYRIGHT
- Copyright 2020-2023 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
- L<https://www.openssl.org/source/license.html>.
- =cut
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