PHP Extension Requires Chilkat v11.0.0+

Generate RSA Public/Private Key Pair and Export to PEM

See more RSA Examples

_LANGUAGE_ example code showing how to generate an RSA public/private key pair and export to PEM files. PHP Extension

<?php

include("chilkat.php");

$success = false;

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

$rsa = new CkRsa();

//  Generate a 2048-bit key.  Chilkat RSA supports
//  key sizes ranging from 512 bits to 8192 bits.
$privKey = new CkPrivateKey();
$success = $rsa->GenKey(2048,$privKey);
if ($success == false) {
    print $rsa->lastErrorText() . "\n";
    exit;
}

$pubKey = new CkPublicKey();
$privKey->ToPublicKey($pubKey);

//  Save the private key in PEM format:
$success = $privKey->SavePemFile('privateKey.pem');
if ($success == false) {
    print $privKey->lastErrorText() . "\n";
    exit;
}

//  Save the public key in PEM format:
$success = $pubKey->SavePemFile(false,'publicKey.pem');
if ($success == false) {
    print $pubKey->lastErrorText() . "\n";
    exit;
}

print 'Success.' . "\n";

?>