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数字图书馆是一个提供在线服务,与Internet进行联接和进行大量数据信息管理的系统,由于Internet具有信息资源的共享性、整体的开放性和分布的广域性,其这些特点为系统的破坏、信息的盗取以及非法的操作,提供了极为方便和难以预防控制的可乘之机,因此数字图书馆的在线信息服务的稳定性和安全性不能够得到非常有效的保障。而数字图书馆的安全核心是数据的
Digital Library is a system that provides online services, connect with the Internet and manage a large amount of data. Because Internet has the sharing of information resources, the overall openness and the wide area distribution, these features are the destruction of the system, The stealing and illegal operation of information provide a very convenient and difficult to control. Therefore, the stability and security of digital library’s online information service can not be guaranteed very effectively. The digital library’s core of security is data