Simple encryption class.

Cipher.class.php

<?php
namespace SweetCode\Cipher;

class Cipher {

	private $secureKey;
	private $cryptCipher = MCRYPT_RIJNDAEL_256;
	private $cryptMode = MCRYPT_MODE_ECB;
	private $vectorSize;

	public function __construct($passphrase, $hash = 'SHA256') {
		$this->secureKey = hash($hash, $passphrase, true);
		$this->vectorSize = mcrypt_get_iv_size($this->cryptCipher, $this->cryptMode);
	}

	/**
	 * encrypts the given value
	 *
	 * @param string $value
	 * @return string
	 */
	public function encrypt($value) {

        	return (base64_encode(
            		mcrypt_encrypt(
                		$this->cryptCipher,
	                $this->secureKey,
	                $value,
	                $this->cryptMode,
	                mcrypt_create_iv(
	                    $this->vectorSize,
	                    MCRYPT_RAND
	                )
	            )));

	}

	/**
	 * decrypts the given encrypted value
	 *
	 * @param string $value
	 * @return string
	 */
	public function decrypt($value) {

	        return (mcrypt_decrypt(
		                $this->cryptCipher,
		                $this->secureKey,
		                base64_decode($value),
		                $this->cryptMode,
		                mcrypt_create_iv(
		                    $this->vectorSize,
		                    MCRYPT_RAND
	                )));

    }
}