基于身份多接收者签密方案的安全性分析(英文)  

Cryptanalysis of an identity-based multi-recipient signcryption scheme

作　　者：张席[1] 陈泯融[2] 杨玲[1] 

机构地区：[1]深圳大学计算机与软件学院,深圳518060 [2]深圳大学信息工程学院,深圳518060

出　　处：《深圳大学学报（理工版）》2010年第4期408-412,共5页Journal of Shenzhen University(Science and Engineering)

基　　金：supported by the National Natural Science Foundation ofChina(60903178)~~

摘　　要：基于身份多接受者签密是一种能够同时实现认证性与保密性的重要密码学工具.分析杜红珍等2009年提出的基于身份多接收者签密方案.通过模拟攻击验证了该方案不能满足信息保密性与不可伪造性的安全要求.在此基础上,提出一个改进的基于身份多用户签密的方案,新方案具有保密性与不可伪造性,其效率有待进一步提高.Identity-based multi-recipient signcryption（ID-MRSC）is an important cryptographic primitive which can simultaneously provide authenticity and privacy.In 2009,DU and WEN proposed an ID-MRSC scheme,and claimed that their scheme satisfied the security requirements of confidentiality and unforgeability.This paper analyzed the scheme and presented a concrete attack against the scheme,indicating that the scheme fails to satisfy the security requirement of unforgeability.We presented a new ID-MRSC scheme that simultaneously satisfies the requirements of confidentiality and unforgeability.It＇s efficiency could be improved is our future work.

关 键 词：数据安全与计算机安全 基于身份的多接收者签密 双线性配对 信息安全 自适应选择密文身份攻击 不可伪造性 密码学 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构] TN918[自动化与计算机技术—计算机科学与技术]