摘要
针对目前人们提出的一些基于身份的强指定验证者签名方案安全性证明存在缺陷以及签名方案效率不高的问题,分析了基于身份的强指定验证者签名方案必须满足的安全特性,利用双线性映射设计出一种新的基于身份的强指定验证者签名方案,采用密码学安全性分析的方法对新方案进行安全性证明。结果表明,新方案满足不可传递性、不可伪造性及签名者身份的匿名性,且具有较高的签名效率。
For the flaws in security analysis and the low efficiecy of existing ID-based strong designated verifier signature schemes,and based on bilinear mapping,a new signature scheme is proposed and implemented.The security analysis for cryptography security is carried out on the proposed scheme,thus to verify the security of the proposed scheme.The results show that the new scheme could satisfy the security requirements of non-transferability,unforgeability,privacy of signer identity and low computational complexity.
出处
《信息安全与通信保密》
2010年第12期102-103,109,共3页
Information Security and Communications Privacy
关键词
强指定验证者签名
基于身份
双线性映射
strong designated verifier signature
ID-based
bilinear mapping
