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.\"
.IX Title "Crypt::DSA::Signature 3pm"
.TH Crypt::DSA::Signature 3pm "2022-06-12" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Crypt::DSA::Signature \- DSA signature object
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    use Crypt::DSA::Signature;
\&    my $sig = Crypt::DSA::Signature\->new;
\&
\&    $sig\->r($r);
\&    $sig\->s($s);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fICrypt::DSA::Signature\fR represents a \s-1DSA\s0 signature. It has 2 methods,
\&\fIr\fR and \fIs\fR, which are the big number representations of the 2 pieces of
the \s-1DSA\s0 signature.
.SH "USAGE"
.IX Header "USAGE"
.ie n .SS "Crypt::DSA::Signature\->new( %options )"
.el .SS "Crypt::DSA::Signature\->new( \f(CW%options\fP )"
.IX Subsection "Crypt::DSA::Signature->new( %options )"
Creates a new signature object, and optionally initializes it with the
information in \fI\f(CI%options\fI\fR, which can contain:
.IP "\(bu" 4
Content
.Sp
An \s-1ASN\s0.1\-encoded string representing the \s-1DSA\s0 signature. In \s-1ASN.1\s0 notation,
this looks like:
.Sp
.Vb 4
\&    SEQUENCE {
\&        r INTEGER,
\&        s INTEGER
\&    }
.Ve
.Sp
If \fIContent\fR is provided, \fInew\fR will automatically call the \fIdeserialize\fR
method to parse the content, and set the \fIr\fR and \fIs\fR methods on the
resulting \fICrypt::DSA::Signature\fR object.
.ie n .SS "$sig\->serialize"
.el .SS "\f(CW$sig\fP\->serialize"
.IX Subsection "$sig->serialize"
Serializes the signature object \fI\f(CI$sig\fI\fR into the format described above:
an \s-1ASN\s0.1\-encoded representation of the signature, using the \s-1ASN.1\s0 syntax
above.
.SH "AUTHOR & COPYRIGHTS"
.IX Header "AUTHOR & COPYRIGHTS"
Please see the Crypt::DSA manpage for author, copyright,
and license information.