(Perl) Verify SSL Server Certificate

Demonstrates how to connect to an SSL server and verify its SSL certificate.

 Chilkat Perl Module Downloads for Windows, Linux, and MAC OS X

use chilkat();

$socket = new chilkat::CkSocket();

$success = $socket->UnlockComponent("Anything for 30-day trial");
if ($success != 1) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

$ssl = 1;
$maxWaitMillisec = 20000;

#  The SSL server hostname may be an IP address, a domain name,
#  or "localhost".

$sslServerHost = "www.paypal.com";
$sslServerPort = 443;

#  Connect to the SSL server:
$success = $socket->Connect($sslServerHost,$sslServerPort,$ssl,$maxWaitMillisec);
if ($success != 1) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

# cert is a CkCert
$cert = $socket->GetSslServerCert();
if (!($cert eq null )) {

    print "Server Certificate:" . "\r\n";
    print "Distinguished Name: " . $cert->subjectDN() . "\r\n";
    print "Common Name: " . $cert->subjectCN() . "\r\n";
    print "Issuer Distinguished Name: " . $cert->issuerDN() . "\r\n";
    print "Issuer Common Name: " . $cert->issuerCN() . "\r\n";

    $bExpired = $cert->get_Expired();
    $bRevoked = $cert->get_Revoked();
    $bSignatureVerified = $cert->get_SignatureVerified();
    $bTrustedRoot = $cert->get_TrustedRoot();

    print "Expired: " . $bExpired . "\r\n";
    print "Revoked: " . $bRevoked . "\r\n";
    print "Signature Verified: " . $bSignatureVerified . "\r\n";
    print "Trusted Root: " . $bTrustedRoot . "\r\n";

}

#  Close the connection with the server
#  Wait a max of 20 seconds (20000 millsec)
$socket->Close(20000);