一种改进的网络安全信道建立算法  

A Improved Algorithm for Building Network Security Channel

作　　者：郑明辉[1] 2周慧华 

机构地区：[1]华中科技大学计算机学院

出　　处：《微电子学与计算机》2004年第9期80-82,86,共4页Microelectronics & Computer

摘　　要：讨论了基于对称加密算法DES的安全信道建立策略,该安全信道能实现通讯双方的认证和加密密钥的协商,并分析了该算法存在的不足。提出了一种改进的安全信道建立算法,新的算法能够承受已知明文攻击,同时还提高了加、解密运算的效率。This paper discusses the algorithm that can build security channel based on symmetrical encryption algorithms for network communication, security channel is applied in authentication of identity and consultation of keys, advantages of this algorithm are analyzed in detail. A improved algorithm that builds security channel is provided, the new algorithm not only against known-plaintext attack, but also enhance efficiency of operation for encryption and decryption.

关 键 词：安全信道 DES 已知明文攻击 信息认证码 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]