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.IX Title "Crypt::OpenSSL::DSA::Signature 3pm"
.TH Crypt::OpenSSL::DSA::Signature 3pm 2024-03-07 "perl v5.38.2" "User Contributed Perl Documentation"
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.SH NAME
.Vb 1
\&  Crypt::OpenSSL::DSA::Signature \- Digital Signature Object
.Ve
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 6
\&  use Crypt::OpenSSL::DSA;
\&  my $dsa_priv = Crypt::OpenSSL::DSA\->read_priv_key( $filename );
\&  my $sig_obj = $dsa_priv\->do_sign($message);
\&  my $dsa_pub = Crypt::OpenSSL::DSA\->read_pub_key( $filename );
\&  my $valid = $dsa_pub\->do_verify($message, $sig_obj);
\&  my $sig_size = $dsa_priv\->get_sig_size();
\&
\&  my $r = $sig_obj\->get_r;
\&  my $s = $sig_obj\->get_s;
\&
\&  my $sig_obj2 = Crypt::OpenSSL::DSA::Signature\->new();
\&  $sig_obj2\->set_r($r);
\&  $sig_obj2\->set_s($s);
\&  my $valid = $dsa_pub\->do_verify($message, $sig_obj2);
.Ve
.SH "CLASS METHODS"
.IX Header "CLASS METHODS"
.ie n .IP "$sig_obj = Crypt::OpenSSL::DSA::Signature\->\fBnew()\fR;" 4
.el .IP "\f(CW$sig_obj\fR = Crypt::OpenSSL::DSA::Signature\->\fBnew()\fR;" 4
.IX Item "$sig_obj = Crypt::OpenSSL::DSA::Signature->new();"
Create a new DSA Signature Object.  You will need to
call set_r and set_s after you create this.
.SH "OBJECT METHODS"
.IX Header "OBJECT METHODS"
.ie n .IP "$r = $sig_obj\->get_r;" 4
.el .IP "\f(CW$r\fR = \f(CW$sig_obj\fR\->get_r;" 4
.IX Item "$r = $sig_obj->get_r;"
Gets first member of signature pair.
.ie n .IP "$s = $sig_obj\->get_s;" 4
.el .IP "\f(CW$s\fR = \f(CW$sig_obj\fR\->get_s;" 4
.IX Item "$s = $sig_obj->get_s;"
Gets second member of signature pair.
.ie n .IP "$r = $sig_obj\->set_r;" 4
.el .IP "\f(CW$r\fR = \f(CW$sig_obj\fR\->set_r;" 4
.IX Item "$r = $sig_obj->set_r;"
Sets first member of signature pair.
.ie n .IP "$s = $sig_obj\->set_s;" 4
.el .IP "\f(CW$s\fR = \f(CW$sig_obj\fR\->set_s;" 4
.IX Item "$s = $sig_obj->set_s;"
Sets second member of signature pair.
.SH AUTHOR
.IX Header "AUTHOR"
T.J. Mather, <tjmather@maxmind.com>
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Crypt::OpenSSL::DSA