一种后向安全的混合代理多重签名方案  

A Backward Secure Hybrid Proxy Multi-Signature Scheme

作　　者：万世昌[1] 

机构地区：[1]商洛学院数学与计算机应用学院,陕西商洛726000

出　　处：《商洛学院学报》2015年第6期15-18,共4页Journal of Shangluo University

摘　　要：以一个随机数为种子,连续做散列运算,计算中生成的有序散列值就构成了一条单向散列链。将单向散列链引入代理签名方案中,设计了一个混合代理多重签名方案。新方案中当前时段的散列值参加签名运算并在验证阶段得到验证,保证了方案的后向安全性,如果当前时段密钥丢失,今后时段签名也不会被假冒。最后分析了方案的安全性和效率。A random number is taken as the seed, the hash operation is done continuously, and the orderly hash values generated in the calculation constituted a one-way hash chain. A hybrid proxy multi-signature scheme was designed by the one-way hash chain. The hash value of the current period in the new scheme to participate in the signature calculation and has been verified in the signature verification phase, it ensured the backward security of the scheme. Once the secret keys of proxy signers were lost, signatures of past and future periods can not be forged by an attacker. At last the security and efficiency of the proposed scheme were analyzed.

关 键 词：单向散列链 代理签名 混合代理多重签名 后向安全性 

分 类 号：TN918.1[电子电信—通信与信息系统]