计算机中数据的日常保护

Protection of data in computer

保护计算机系统及数据的安全是极其重要的.常采用的数据保护技术有用户身份鉴别、计算机数据加密技术、数字签名技术等.文章就常用隐藏文件、更改文件的类型、更改文件夹的类型以及利用Office软件加密功能来保护数据的方法做了介绍.

It is very important to protect the security of computer system and data in it. User ID authentication, data encryption and digital signature are the three common technologies for data protection. This paper introduces such methods as hiding files or documents,changing file's type,altering documents' sort and using Office's data encryption technology to protect our data in daily life.