Abstract:
This paper proposes an improved Statistical Hitting Set attack(SHS-attack) based on MIX anonymity technique and a defence strategy based on dummy packets to counter against this attack. Theoretical analysis and simulations show that, this attack is more efficient than previous SHS-attack while all the recipients congregate in a small group and the dummy packet technique can effectively decrease the accuracy of this attack.
Key words:
data privacy,
network security,
anonymous communications,
Statistical Hitting Set attack(SHS-attack)
摘要: 基于MIX匿名系统模型,提出一种改进的统计命中集攻击算法,并在该算法的基础上给出基于填充包的防御策略。理论分析和实验结果表明,与已有的统计命中集攻击相比,该攻击在接收者相对集中时有较好的攻击效果,采用填充包技术能有效地降低攻击的准 确性。
关键词:
数据隐私,
网络安全,
匿名通信,
统计命中集攻击
CLC Number:
XU Hong-yun; LIU Jing; XIE Cheng; PENG Shu-guang. Research on Statistical Hitting Set Attack in Anonymity System[J]. Computer Engineering, 2009, 35(2): 145-147.
徐红云; ;刘 京;谢 诚;彭曙光. 匿名系统中统计命中集攻击研究[J]. 计算机工程, 2009, 35(2): 145-147.