RSA.php

RSA.php

<?php
$privateKeyPassphrase = "PASSWORD";

$privateKeyString = <<<PK
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,462A3423852255C0

-----END RSA PRIVATE KEY-----
PK;

$publicKeyString = <<<PK
-----BEGIN PUBLIC KEY-----
-----END PUBLIC KEY-----
PK;

$privateKey = openssl_pkey_get_private(array($privateKeyString, $privateKeyPassphrase));
$publicKey = openssl_pkey_get_public(array($publicKeyString, $privateKeyPassphrase));

if (!$privateKey) {
    echo "Private key NOT OK\n";
}

if (!$publicKey) {
    echo "Public key NOT OK\n";
}

function decrypt($message)
{
  global $privateKey;
	if (!openssl_private_decrypt(base64_decode($message), $decryptedWithPrivateFromPublic, $privateKey)) {
		return null;
	}
	
	return ($decryptedWithPrivateFromPublic);
}

function encrypt($message)
{
	global $publicKey;
	if (!openssl_public_encrypt($message, $encryptedWithPublic, $publicKey)) {
		return null;
	}
	
	return base64_encode($encryptedWithPublic);
}