(PHP Extension) RSA OAEP Padding

Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding.

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

$rsa = new CkRsa();

// RSA public key in XML format:
$publicKey = '<RSAPublicKey><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAPublicKey>';

$success = $rsa->ImportPublicKey($publicKey);

// To use Optimal Asymmetric Encryption Padding (OAEP) padding,
// simply set the OaepPadding property:
$rsa->put_OaepPadding(true);

// Encrypt a string and return the encrypted data base64-encoded:
$rsa->put_EncodingMode('base64');

$plainText = 'RSA Encryption should be easy.';

$usePrivateKey = false;
$encryptedStr = $rsa->encryptStringENC($plainText,$usePrivateKey);
print $encryptedStr . "\n";

?>