(PHP Extension) DSA Public Key PEM to DER Conversion

Converts a DSA public key from PEM format to DER.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$dsa = new CkDsa();

// Load a PEM public key.

$pemPublicKey = $dsa->loadText('dsa_pub.pem');
// Import the public key PEM into the DSA object.
$success = $dsa->FromPublicPem($pemPublicKey);
if ($success != true) {
    print $dsa->lastErrorText() . "\n";
    exit;
}

// Write it out as a DER file:
$success = $dsa->ToPublicDerFile('dsa_pub.der');
if ($success != true) {
    print $dsa->lastErrorText() . "\n";
    exit;
}

print 'Finished!' . "\n";

?>