Can PHP 5.3 Implement RSA Encryption/Decryption without Padding?

RSA Encryption and Decryption without Padding in PHP 5.3

Question:

Is there a PHP 5.3 class that enables RSA encryption/decryption without padding? I possess the private and public keys, as well as p, q, and the modulus.

Answer:

phpseclib provides a pure PHP implementation of RSA that can handle encryption and decryption without padding:

<?php
include('Crypt/RSA.php');

$private_key = file_get_contents('private.key');

$rsa = new Crypt_RSA();
$rsa->loadKey($private_key);

$plaintext = new Math_BigInteger('aaaaaa');
echo $rsa->_exponentiate($plaintext)->toBytes();
?>

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