J4 ›› 2009, Vol. 47 ›› Issue (4): 783-789.

• 计算机科学 • 上一篇    下一篇

利用有限域上遍历矩阵实现基于隐藏基的密钥交换

袁哲1, 赵永哲1, 李光伟2, 张文睿3, 邸朝生4, 杨帆5, 王军5   

  1. 1. 吉林大学 计算机科学与技术学院, 长春 130012; 2. 长春径点科技有限公司, 长春 130012;3. 吉林移动通信有限公司吉林市分公司, 吉林 吉林 132200; 4. 吉林长邮通信建设有限公司, 长春 130012;5. 长春市机动车维修管理处, 长春 130041
  • 收稿日期:2008-08-19 出版日期:2009-07-26 发布日期:2009-08-24
  • 通讯作者: 赵永哲 E-mail:yongzhe@jlu.edu.cn.

Implement of Keyexchange Based on the Hiddenbases viaErgodic Matrix over Finite Field

YUAN Zhe1, ZHAO Yongzhe1, LI Guangwei2, ZHANG Wenrui  |3,DI Chaosheng4, YANG Fan5, WANG Jun5   

  1. 1. College of Computer Science and Technology, Jilin University, Changchun 130012, China;2. AvePoint Technology Changchun |Co., Ltd, Changchun 130012, China;3. Jilin Filiale of Jilin Mobile Communication Co., Ltd, Jilin 132200, Jilin Province, China;4.
     Communication Construction Co., Ltd of Institute of Posts and Telecommunications of Changchun,Changchun 130012, China|5. Appliances of Motor Vehicle Service of Changchun, Changchun 130041, China
  • Received:2008-08-19 Online:2009-07-26 Published:2009-08-24
  • Contact: ZHAO Yongzhe E-mail:yongzhe@jlu.edu.cn.

摘要:

针对传统密钥约定方案安全性较低问题, 提出一种新的密钥交换(约定)方案〖CD2〗基于隐藏基的密钥交换. 通过利用有限域上的遍历矩阵对当事双方各自所选择的基进行隐藏, 实现了交换操作. 通过交换操作, 最终实现了基于隐藏基密钥交换协议. 利用该协议, 当事双方可进行较大规模的密钥交换. 通过对交换操作的安全性分析可知, 该协议可以抵抗蛮力攻击, 具有较高的安全性和较强的实用性.

关键词: 隐藏基; 密钥交换; 交换操作; 有限域上的遍历矩阵

Abstract:

Aiming at the poor security of traditional methods for keyexchange, we proposed a new method for keyexchange: the keyexchange based on hiddenbases. The bases selected by both parties are hidden by making use of ergodic matrix over finite field. Thus, this method realizes exchangeoperation and the keyexchange based on hiddenbases ultimately. Both the parties can do keyexchange on a relatively larger scale by making use of the protocol. Through the safety analysis of exchangeoperation, we found that the protocol can resist brute attack, and it is also of high security and strong practicability.

Key words: hiddenbase, keyexchange, exchangeoperation;  ergodic matrix over finite field

中图分类号: 

  • TP309