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.
出处
《微电子学与计算机》
CSCD
北大核心
2004年第9期80-82,86,共4页
Microelectronics & Computer
关键词
安全信道
DES
已知明文攻击
信息认证码
Security channel, DES, Known-plaintext attack, Message authentication code
