=pod =head1 NAME EVP_SIGNATURE-ECDSA - The EVP_PKEY ECDSA signature implementation. =head1 DESCRIPTION Support for computing ECDSA signatures. See L 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) =item "properties" (B) These parameters are described in L. =back The following signature parameters can be retrieved using EVP_PKEY_CTX_get_params(). =over 4 =item "algorithm-id" (B) =item "digest" (B) The parameters are described in L. =back =head1 SEE ALSO L, L, L, L, =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. =cut