openssl/doc/man7/EVP_SIGNATURE-ECDSA.pod
Shane Lontis b808665265 Update core_names.h fields and document most fields.
Renamed some values in core_names i.e Some DH specific names were changed to use DH instead of FFC.
Added some strings values related to RSA keys.
Moved set_params related docs out of EVP_PKEY_CTX_ctrl.pod into its own file.
Updated Keyexchange and signature code and docs.
Moved some common DSA/DH docs into a shared EVP_PKEY-FFC.pod.
Moved Ed25519.pod into EVP_SIGNATURE-ED25519.pod and reworked it.

Added some usage examples. As a result of the usage examples the following change was also made:
ec allows OSSL_PKEY_PARAM_USE_COFACTOR_ECDH as a settable gen parameter.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11610)
2020-05-26 13:53:07 +10:00

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=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