可证安全的ISRSAC密码体制的设计与分析  

Design and Analysis of Provably Secure ISRSAC Cryptosystem

作　　者：袁煜淇 隋吉达 张艳硕[1] 秦晓宏[1] YUAN Yuqi;SUI Jida;ZHANG Yanshuo;QIN Xiaohong(Beijing Institute of Electronic Science and Technology,Beijing 100070,China)

机构地区：[1]北京电子科技学院,北京市100070

出　　处：《北京电子科技学院学报》2024年第2期34-42,共9页Journal of Beijing Electronic Science And Technology Institute

基　　金：中央高校基本科研业务费专项资金资助(3282024048);“信息安全”国家级一流本科专业建设点。

摘　　要：本文讨论了可证安全的ISRSAC密码体制的设计与分析。在对ISRSAC算法的流程和ISRSAC的正确性和安全性进行研究和分析的基础上,对ISRSAC方案的缺陷做出改进,并设计了ISRSAC-OAEP和ISRSAC-PSS两种可证明安全的密码算法方案。文章结尾分析了ISRSAC-OAEP和ISRSAC-PSS方案的优势,并进行总结得出,在随机预言机模型中,ISRSAC-OAEP和ISRSAC-PSS被证明在抵御适应性选择密文攻击的情况下是安全的。In this paper,design and analysis of provably secure ISRSAC cryptosystem are discussed.Based on the study and analysis on the process and the correctness and security of the ISRSAC algo⁃rithm,defects in the ISRSAC scheme are modified and two provably secure cryptosystem schemes named ISRSAC⁃OAEP and ISRSAC⁃PSS are designed.In addition,advantages of the ISRSAC⁃OAEP and the ISRSAC⁃PSS are analyzed.The ISRSAC⁃OAEP and the ISRSAC⁃PSS are proved to be safe a⁃gainst the adaptive chosen ciphertext attack in the random oracle model.

关 键 词：ISRSAC 可证明安全性理论 密码体制 适应性选择密文攻击 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]