PHP Extension Requires Chilkat v11.0.0+

RSA OAEP Padding

See more RSA Examples

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

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

$pubKey = new CkPublicKey();
$success = $pubKey->LoadFromString($pubKeyXml);
if ($success == false) {
    print $pubKey->lastErrorText() . "\n";
    exit;
}

$success = $rsa->UsePublicKey($pubKey);
if ($success == false) {
    print $rsa->lastErrorText() . "\n";
    exit;
}

//  To use Optimal Asymmetric Encryption Padding (OAEP) padding,
//  simply set the PkcsPadding property to false
$rsa->put_PkcsPadding(false);

//  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";

?>