搜索
本科毕业论文（设计）基于属性的数字签名方案研究学院：＿＿理学院＿＿＿专业：＿信息与计算科学＿班级：＿＿信计111＿＿＿学号：＿1107010278＿＿学生姓名：＿＿谭玉林＿＿＿指导教师：＿＿田有亮＿＿＿2015年05月08日贵州大学本科毕业论文（设计）第II页贵州大学本科毕业论文（设计）诚信责任书本人郑重声明：本人所呈交的毕业论文（设计），是在导师的指导下独立进行研究所完成。毕业论文（设计）中凡引用他人已经发表或未发表的成果、数据、观点等，均已明确注明出处。特此声明。论文（设计）作者签名：日期：贵州大学本科毕业论文（设计）第I页摘要.........................................................................................................................................IIABSTRACT.................................................................................................................................III第一章绪论.............................................................................................................................11.1研究背景及目的.............................................................................................................11.2基于属性签名的发展历程.............................................................................................11.3数字签名技术的类别.....................................................................................................21.3.1普通应用的数字签名..............................................................................................21.3.2特殊应用的数字签名..............................................................................................3第二章基础知识.....................................................................................................................5第三章数字签名相关概念.....................................................................................................73.1数字签名的定义.............................................................................................................73.2数字签名的基本流程.....................................................................................................73.3数字签名的基本性质.....................................................................................................83.4数字签名的基本框架.....................................................................................................8第四章基于属性的数字签名...............................................................................................104.1模糊身份签名的介绍...................................................................................................104.2属性数字签名的概念...................................................................................................104.3属性数字签名的匿名性...............................................................................................104.4属性数字签名的框架...................................................................................................114.5属性数字签名的安全模型...........................................................................................114.6属性数字签名的方案...................................................................................................124.6.1方案构造................................................................................................................124.6.2方案正确性分析....................................................................................................134.6.3方案安全性分析....................................................................................................15参考文献.................................................................................................................................19致谢.......................................................................................................................................20贵州大学本科毕业论文（设计）第II页摘要近年来,随着计算机应用技术的高速发展,林林总总的数据信息已经渗透到计算机网络的各个方面。它一方面给人们工作、生活带来了便捷；另一方面也同样潜藏着个人隐私，商业机密等泄露的风险。当然随着人们信息安全意识的不断提高，这一领域也成为人们密切关注的焦点。然而要如何保证数据信息传递的安全性,高效性及其完整性,亦然成为影响人们自身信息安全的关键所在。而作为非对称密码学重要应用之一的基于属性的数字签名，它有着能够细粒度地划分身份的特征,不管在强调匿名性还是在分布式网络系统应有方面都有着很大的优势。因此研究一套安全、可靠实用的基于属性的数字签名方案是很有必要性的。本论文主要围绕这基于属性的数字签名方案的几个方面进行研究。一、对数字签名的定义进行了概括并介绍了数字签名的工作流程。二、对基于属性的数字签名方案的发展由来进行了一个梳理，并针对其定义概念进行了线性的推导。三、分析了并改良了Waters的签名方案，关于正确性和安全性。关键词:基于属性数字签名贵州大学本科毕业论文（设计）第III页ABSTRACTInrecentyears,withtherapiddevelopmentofcomputerapplicationtechnology,alotofdatainformationhasbeenpenetratedintoallaspectsofcomputernetworks.Ontheonehand,itbringsconvenienceforpeopletoworkandlife.Ontheotherhand,italsohidestheriskofleakageofpersonalprivacy,businesssecretsandsoon.Inthecontinuousimprovementofpeople'sawarenessofinformationsecurity,thisfieldhasbecomethefocusofpeople'scloseattention.However,howtoensurethesecurity,efficiencyandintegrityofdatainformationdeliveryisthekeytotheinformationsecurityofpeople.Digitalsignaturewhichbasedontheattributesisoneoftheimportantapplicationsofasymmetriccryptography.Theattribute-baseddigitalsignaturesystemcanbefine-graineddivisionidentity,Regardlessoftheemphasisonanonymityordistributednetworksystemapplicationshavealotofadvantages.Soitisnecessarytoresearchasetofsecure,practicalandreliabledigitalsignatureschemebasedonattributes.Thisthesismainlystudiesseveralaspectsofit.First,thedefinitionandtheworkingprocessofthedigitalsignaturearesummarized.Second,thedevelopmentofthedigitalsignatureschemeattributebased,andthedefinitionoftheconceptofthelinearderivation.Third,onthecorrectnessandsecurity,analyzeandimprovethesignatureschemeofWaters.Keywo