Merge branch 'master' into feature-3716/Messaging_inbox_outbox_user

application/libraries/CryptLib.php

@@ -0,0 +1,28 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+use phpseclib\Crypt\Rijndael;
+
+/**
+ * Collection of different encryption/hashing algorithms
+ */
+class CryptLib
+{
+	/**
+	 * Encrypt using the Rijndael algorithm with a key length of 256 bits and the ECB mode
+	 * It is possible to disable the padding, enabled by default
+	 */
+	public static function RIJNDAEL_256_ECB($value, $key, $paddingDisabled = false)
+	{
+		if (isEmptyString($key) || strlen($value) % 32 != 0) return null;
+
+		$cipher = new Rijndael(Rijndael::MODE_ECB);
+		$cipher->setBlockLength(256);
+		$cipher->setKey($key);
+
+		if ($paddingDisabled === true) $cipher->disablePadding();
+
+		return $cipher->encrypt($value);
+	}
+}