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计算机工程 ›› 2009, Vol. 35 ›› Issue (22): 150-152.doi: 10.3969/j.issn.1000-3428.2009.22.051

• 安全技术 • 上一篇    下一篇

PMAC模式的消息伪造攻击

刘彦宾1，韦永壮2,3   

  1. (1. 遵义师范学院计算机科学系，遵义 563002；2. 桂林电子科技大学信息与通信学院，桂林 541004；3. 西安电子科技大学计算机网络与信息安全教育部重点实验室，西安 710071)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-11-20 发布日期:2009-11-20

Message Forgery Attack on PMAC Mode

LIU Yan-bin1, WEI Yong-zhuang2,3   

  1. (1. Department of Computer Science, Zunyi Normal University, Zunyi 563002;2. School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004;3. Key Laboratory of Computer Networks & Information Security, Ministry of Education, Xidian University, Xi’an 710071)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-11-20 Published:2009-11-20

PDF

961

被引次数

1

摘要： 针对PMAC工作模式，利用模式局部差分恒等原理，给出一种消息伪造攻击方法，指出新攻击下PMAC工作模式是脆弱的。利用该方法可以成功地进行消息和其MAC的伪造。与已有的攻击方法相比，该新攻击所需的碰撞条件更为宽松，并使得实施攻击更为灵活、有效。

关键词: 分组密码, 消息认证码, PMAC模式, 消息伪造攻击

Abstract: This paper proposes a message forgery attack on PMAC mode by using the property of differential equivalent of local operation mode. It shows that PMAC mode is vulnerable to the new message forgery attack, where new message and corresponding MAC code can be forged successfully. Compared with the previously works, it shows that the new forgery attack is more flexible and effective, and the collision condition is much looser.

Key words: block cipher, message authentication code, PMAC mode, message forgery attack

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