基于格结构优化的环签名认证安全强化机制  

Security strengthening mechanism of ring signature authentication based on lattice structure optimization

作　　者：张晞[1] 陈雨恩[1] 

机构地区：[1]广州工程技术职业学院,广州510075

出　　处：《计算机应用研究》2016年第11期3472-3475,共4页Application Research of Computers

基　　金：广东省自然科学基金团队项目(9351064101000003)

摘　　要：针对当前国内外环签名安全机制在具体实践中的安全隐患,提出了基于格结构的强约束验证方环签名安全机制(SCLS_IM)算法。该算法根据已有的小整数解困难问题,引入强约束概念,完善了SDVS机制,在很大程度上降低了签名时间周期,充分确保安全性的基础上,减小了签名长度,能够有效抵抗适应性选择消息攻击,对其具有强不可伪造性。通过安全性与性能分析,SCLS_IM机制存在诸多方面的优势,其安全性相对较高,同时性能效率相对较高。For the current security risks of the ring signature security mechanisms in specific practice at home and abroad, the paper proposed a strong side constraint validation ring signature security mechanisms algorithm based on optimization lattice structure （SCLS_IM）. The algorithm was based on the problem of the existed small integer solving difficulty, and introduced the concept of a strong constraint, perfected the mechanism of SDVS,in the largely reduced the signature time period. On the basis of fully ensure security, it reduced the length of the signature, could resist adaptive chosen message attack effectively, and had a strong unforgeability. The security and performance analysis show that the SCLS_IM mechanism has advantages in many as- pects, its security is relatively high ,while performance efficiency is relatively high.

关 键 词：环签名 格结构 小整数 消息攻击 SCLS_IM 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]