面向协同设计的基于身份环签名方案  

ID-Based Ring Signature Scheme for Collaborative Design System

作　　者：王晓峰[1] 张璟[2] 王尚平[1] 张亚玲[2] 张翔[2] 

机构地区：[1]西安理工大学理学院,陕西西安710054 [2]西安理工大学计算机科学与工程学院,陕西西安710048

出　　处：《中国矿业大学学报》2007年第3期343-346,370,共5页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(60273089);陕西省自然科学基础研究计划项目(2005F02);西安理工大学科技创新基金项目(108210402)

摘　　要：分布式协同设计系统中,信息交换的基本安全保障是信息发送者身份的真实可靠性和信息的机密性、真实性、完整性.为了在提供认证的同时保护信息发送者的匿名性,基于GDH群,提出了一个适用于分布式协同设计环境的基于身份的环签名方案,新方案采用引进两个独立PKG的方法,在一定程度上消除了现存方案中单个PKG可以随意伪造用户签名的安全隐患,实现了签名者无条件匿名性,达到了匿名认证的目的.The essential security requirement for information exchange in distributed and collaborative design system is to ensure the identity authenticity of the sender, and the confidentiality and the integrality of the transmitted documents. For protecting the anonymousness of the sender as well as to provide the authentication, an ID-based ring signature scheme suited for distributed and collaborative design system is proposed based on GDH group. This scheme introduced two PKG, to a certain extent, to eliminate the hidden security trouble that existed in existing ID-based ring signature schemes, in which a PKG could impersonate the signers to forge their signatures. This scheme can be also used to realize anonymity authentication by providing signer ambiguity.

关 键 词：协同设计 环签名 基于身份 GDH群 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]