moving some laravel classes around, switching alias to reflect changes. added some factories. removed system ioc container config file.

laravel/crypter.php

@@ -0,0 +1,95 @@
+<?php namespace Laravel;
+
+if (trim(Config::$items['application']['key']) === '')
+{
+	throw new \Exception('The encryption class may not be used without an application key.');
+}
+
+class Crypter {
+
+	/**
+	 * The encryption cipher.
+	 *
+	 * @var string
+	 */
+	protected static $cipher = MCRYPT_RIJNDAEL_256;
+
+	/**
+	 * The encryption mode.
+	 *
+	 * @var string
+	 */
+	protected static $mode = MCRYPT_MODE_CBC;
+
+	/**
+	 * Encrypt a string using Mcrypt.
+	 *
+	 * The given string will be encrypted using AES-256 encryption for a high
+	 * degree of security. The returned string will also be base64 encoded.
+	 *
+	 * Mcrypt must be installed on your machine before using this method, and
+	 * an application key must be specified in the application configuration.
+	 *
+	 * <code>
+	 *		// Encrypt a string using the Mcrypt PHP extension
+	 *		$encrypted = Crypter::encrpt('secret');
+	 * </code>
+	 *
+	 * @param  string  $value
+	 * @return string
+	 */
+	public static function encrypt($value)
+	{
+		$iv = mcrypt_create_iv(static::iv_size(), MCRYPT_RAND);
+
+		$value = mcrypt_encrypt(static::$cipher, static::key(), $value, static::$mode, $iv);
+
+		return base64_encode($iv.$value);
+	}
+
+	/**
+	 * Decrypt a string using Mcrypt.
+	 *
+	 * The given encrypted value must have been encrypted using Laravel and
+	 * the application key specified in the application configuration file.
+	 *
+	 * Mcrypt must be installed on your machine before using this method.
+	 *
+	 * @param  string  $value
+	 * @return string
+	 */
+	public static function decrypt($value)
+	{
+		if (($value = base64_decode($value)) === false)
+		{
+			throw new \Exception('Decryption error. Input value is not valid base64 data.');
+		}
+
+		$iv = substr($value, 0, static::iv_size());
+
+		$value = substr($value, static::iv_size());
+
+		return rtrim(mcrypt_decrypt(static::$cipher, static::key(), $value, static::$mode, $iv), "\0");
+	}
+
+	/**
+	 * Get the input vector size for the cipher and mode.
+	 *
+	 * @return int
+	 */
+	protected static function iv_size()
+	{
+		return mcrypt_get_iv_size(static::$cipher, static::$mode);
+	}
+
+	/**
+	 * Get the encryption key from the application configuration.
+	 *
+	 * @return string
+	 */
+	protected static function key()
+	{
+		return Config::$items['application']['key'];
+	}
+
+}