一个简单实用的数据加密程序,在我们生活中重要数据比如身份验证,采用明文存取,很容易被别人窃取,而先采用加密后再存入数据库,用的时候再还原,这样就保证了数据安全性.-a simple and practical data encryption procedures, in our lives important information such as authentication, access expressly adopted, it is easy for others to steal, and after the first use encryption into the database, with the reduction in time, thus ensuring data security.