NAME

Crypt::DSA::GMP::Signature - DSA signature object

SYNOPSIS

    use Crypt::DSA::GMP::Signature;
    my $sig = Crypt::DSA::GMP::Signature->new;

    $sig->r($r);
    $sig->s($s);

DESCRIPTION

Crypt::DSA::GMP::Signature represents a DSA signature. It has two methods, "r" and "s", which are the Math::BigInt representations of the two pieces of the DSA signature.

USAGE

Crypt::DSA::GMP::Signature->new( %options )

Creates a new signature object, and optionally initializes it with the information in %options, which can contain:

  • Content

    An ASN.1-encoded string representing the DSA signature. In ASN.1 notation, this looks like:

        SEQUENCE {
            r INTEGER,
            s INTEGER
        }

    If Content is provided, new will automatically call the "deserialize" method to parse the content, and set the "r" and "s" methods on the resulting Crypt::DSA::GMP::Signature object.

METHODS

serialize

Serializes the signature object $sig into the format described above: an ASN.1-encoded representation of the signature, using the ASN.1 syntax above.

deserialize

Deserializes the ASN.1-encoded representation into a signature object.

r

One half of the DSA signature for a message. This is a Math::BigInt object.

s

One half of the DSA signature for a message. This is a Math::BigInt object.

AUTHOR & COPYRIGHTS

See Crypt::DSA::GMP for author, copyright, and license information.