SECURE NETWORK CODING BASED ON HOMOMORPUIC SIGNATURE AGAINST POLLUTION ATTACKS
The network coding systems are vulnerable to pollution attacks,in which the adversary forwarders can inject polluted or forged messages into networks.In this paper,we propose a homomorphic signature scheme to provide security protection against pollution attacks,which mainly uses the homomorphic property of signature based on Paillier cryptosystem.On one hand,it guarantees the forwarders to verify the received messages effectively.If the verification is failed,the message is assumed to be polluted and should be discarded.On the other hand,the proposed scheme can generate the valid signatures for its output messages from the signatures of input ones without knowing the sources private key such that extra secure channels are not needed.We also make the security analysis and prove that our signature scheme is secure enough to defend against pollution attacks.
Network coding Secure Homomorphic signature Pollution attacks Paillier cryptosystem
Zhen Cheng Kaikai Chi Xianzhong Tian Yanjun Li
School of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China
国际会议
杭州
英文
1516-1520
2012-10-30（万方平台首次上网日期，不代表论文的发表时间）