一种理想的数据库加密方案

An ideal database encryption scheme

无论数据库系统的安全性有多高,数据库中的敏感数据仍然很容易受到攻击。为了消除这个威胁给数据库带来的不安全因素,数据库加密技术便应运而生。然而对整个数据库加密,将会极大地降低数据库系统性能。提出了一种理想的数据库加密方案,该方案可以为数据库提供最大的安全性,同时可以限制加密和解密带来的额外时间开销。

Need to protect database, would be an every growing one especially so in this age of e-commerce. Many conventional database security systems are bugged with holes that can be used by attackers to penetrate the database. No matter what degree of security is put in place, sensitive data in database are still vulnerable to attack. To avoid the risk posed by this threat, database encryption has been recommended. However encrypting all of database item will greatly degrade the performance of the database system. As an optimal solution this paper presents a database encryption scheme that provides maximum security, whilst limiting the added time cost of encryption and decryption.