| =pod |
| |
| =head1 NAME |
| |
| EVP_SIGNATURE-ECDSA - The EVP_PKEY ECDSA signature implementation. |
| |
| =head1 DESCRIPTION |
| |
| Support for computing ECDSA signatures. |
| See L<EVP_PKEY-EC(7)> for information related to EC keys. |
| |
| =head2 ECDSA 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> |
| |
| These 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> |
| |
| The 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 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 |
