http://p30droid.com/topic/7072-%D8%B1%D9%85%D8%B2%DA%AF%D8%B2%D8%A7%D8%B1%DB%8C-%D9%88-%D8%B1%D9%85%D8%B2%DA%AF%D8%B4%D8%A7%DB%8C%DB%8C-password-%D8%AF%D8%B1-%D8%A7%D9%86%D8%AF%D8%B1%D9%88%DB%8C%D8%AF-encryption-and-decryption/?do=findComment&comment=28445