PHP ActiveX

Generate RSA Key and return Base64 PKCS8 Private Key

See more RSA Examples

Demonstrates how to generate a new 2048-bit RSA private key and returns the Base64 encoded PKCS8 representation of the private key. PHP ActiveX

<?php

$success = 0;

$rsa = new COM("Chilkat.Rsa");

// Generate a 2048-bit key.  Chilkat RSA supports
// key sizes ranging from 512 bits to 8192 bits.
$privKey = new COM("Chilkat.PrivateKey");
$success = $rsa->GenKey(2048,$privKey);
if ($success == 0) {
    print $rsa->LastErrorText . "\n";
    exit;
}

// Get the private key in PKCS8 Base64 format
$privKeyPkcs8Base64 = $privKey->getPkcs8ENC('base64');

// The key in base64 format will start similar to this:
// MIIEvAIBADANBgkqhkiG9w0BA...
print $privKeyPkcs8Base64 . "\n";

?>