NAME

Crypt::OpenSSL::ECDSA - Perl extension for OpenSSL ECDSA (Elliptic Curve Digital Signature Algorithm)

SYNOPSIS

    use Crypt::OpenSSL::ECDSA;
    $sig = Crypt::OpenSSL::ECDSA::ECDSA_do_sign( $digest, $eckey );
    $r = $sig->get_r;
    $s = $sig->get_s;

    $sig = Crypt::OpenSSL::ECDSA::ECDSA_SIG->new();
    $sig->set_r($r);
    $sig->set_s($s);
    Crypt::OpenSSL::ECDSA::ECDSA_do_verify( $digest, $sig, $eckey );

DESCRIPTION

This module provides an interface to the ECDSA (Elliptic Curve Digital Signature Algorithm) functions in OpenSSL

Tested against OpenSSL 1.0.2

Exportable constants

    ECDSA_F_ECDSA_CHECK
    ECDSA_F_ECDSA_DATA_NEW_METHOD
    ECDSA_F_ECDSA_DO_SIGN
    ECDSA_F_ECDSA_DO_VERIFY
    ECDSA_F_ECDSA_SIGN_SETUP
    ECDSA_R_BAD_SIGNATURE
    ECDSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE
    ECDSA_R_ERR_EC_LIB
    ECDSA_R_MISSING_PARAMETERS
    ECDSA_R_NEED_NEW_SETUP_VALUES
    ECDSA_R_NON_FIPS_METHOD
    ECDSA_R_RANDOM_NUMBER_GENERATION_FAILED
    ECDSA_R_SIGNATURE_MALLOC_FAILED

CLASS METHODS

new

    $sig = Crypt::OpenSSL::ECDSA::ECDSA_SIG->new();

Create a new ECDSA Signature Object.

The internal "r" and "s" components are undefined.

OBJECT METHODS

get_r;

    $r = $sig->get_r;

Gets signature "r" component.

The method returns a string representing a binary integer in network (big-endian) byte order.

get_s;

    $s = $sig->get_s;

Gets signature "s" component.

The method returns a string representing a binary integer in network (big-endian) byte order.

set_r;

    $sig->set_r($r);

Sets signature "r" component.

The argument is a string representing a binary integer in network (big-endian) byte order.

set_s;

    $sig->set_r($s);

Sets signature "s" component.

The argument is a string representing a binary integer in network (big-endian) byte order.

AUTHOR

Mike McCauley, <mikem@airspayce.com>

COPYRIGHT AND LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.18.1 or, at your option, any later version of Perl 5 you may have available.

POD ERRORS

Hey! The above document had some coding errors, which are explained below:

Around line 151:: '=item' outside of any '=over'
Around line 160:: You forgot a '=back' before '=head1'
Around line 162:: '=item' outside of any '=over'
Around line 201:: You forgot a '=back' before '=head1'