摘要
辫群是构造对抗量子攻击的公钥密码系统的新平台,代理签名是原始签名者将他的签名权委托给代理签名者的一种签名体制,代理签名者代表原始签名者进行签名。提出了一种基于辫群上求根问题的代理签名方案,随后对协议的正确性、安全性、参数选择和效率进行分析,给出了随机预言机模型下的安全性证明。新的代理签名方案可以抵抗各种已知攻击。
The braid group is a new candidate platform for constructing quantum attack-resistant public key encryption system.The proxy signature allows a proxy signer to sign messages on behalf of an original signer who delegates his signing power to the proxy signer.A proxy signature based on root finding problem over braid group was put forward,the analysis of its correctness,security,efficiency and parameter choice were subsequently presented,and afterwards the detailed formal security proofs in the Random Oracle Model（ROM） were given.The new scheme can resist current known attacks.
出处
《计算机应用》
CSCD
北大核心
2011年第11期2979-2982,共4页
journal of Computer Applications
基金
国家自然科学基金资助项目(11061014)
江西省教育厅青年科学基金资助项目(GJJ10129)
江西省教育厅科研项目(GJJ10708)
关键词
辫群
求根问题
签名
代理签名
随机预言机模型
braid group
root finding problem
signature
proxy signature
Random Oracle Model（ROM）
