摘要： 介绍Kerberos协议认证系统，分析Kerberos协议存在的局限性。提出一种基于视觉密码的新的认证方案。该方案将视觉密码技术融入Kerberos协议中，对改进前后协议的安全性进行比较分析，结果表明，该方案能有效地解决口令猜测攻击和重放攻击。

关键词: Kerberos协议, 视觉密码, 身份认证

Abstract: This paper introduces the authentication system of Kerberos protocol, and has a detailed analysis of the Kerberos protocol security. On this condition, it imports the scheme of visual cryptography into Kerberos protocol and constructs a new authentication scheme based on visual cryptography. It analyses the safety of Kerberos protocol, and the result shows that the new scheme can resist password attack and replay attack.

Key words: Kerberos protocol, visual cryptography, authentication

中图分类号: 

• TP309.2