摘要： 随机数在密码学和安全信息系统中有着广泛的应用，它的主要用途之一是用作密 钥。该文分析了几种主要的随机数生成器，介绍并比较了它们在安全领域的应用。最后， 对 随机数生成器的发展前景作出展望。

关键词: 随机数, 随机数生成器, 密钥

Abstract: Random number is widely used in cryptography and secure information system, which is mainly used as key. Several principal random number generators are analyzed in this paper, and their applications in security field are also in troduced and compared. Development of random number generator is prospected i n t he end.

中图分类号: 

• TP309