匿名电子支付协议及其安全技术研究

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1、重庆大学博士学位论文方必须持有身份证书或授权证书。论文深入分析了基于证书的认证和访问控制所带来的对隐私的威胁，应用面向密钥的授权证书、证书约简、临时和任务特定密钥等技术以减少使用数字证书带来对隐私的威胁。④实验研究：基于论文的研究成果，作者自主设计并开发了～套安全电子支付软件包，主要模块包括认证中心组件、区域支付平台组件、银行端组件、商家组件和客户组件，各软件模块协调工作，能有效支持完整的电子支付交易流程。从而，验证了协议的可行性、实用性和有效性。关键词：电子支付，安全支付，数字证书，访问授权，匿名性英文摘要ABSTRACTThee—businessappearedafterinform

2、ationtechnologywasusedasatoolforbusinessactivity．TheInternet—basede-businesshastoprovidetheelectronicpaymentserviceformillionsofcustomersandmerchants．Thuspopularizationandapplicationofe—businessdependdirectlyonthesuccessfulimplementationofelectronicpayment．Themostimportantfactorofonlineelectronic

3、paymentistoassurethesecurityofsystem．Existingpaymentprotocolsaredifficultytosatisfytheneedsofe-paymentonIntemetbecauseInteracthasthecharacteristicssuchasopened，distributedandinsecurity．Themainproblemsarefollowings：a)Thesecurityofsystemisincomplete．b)Themechanismofauthenticationiscomplex．c)Itisdif

4、ficulttoprotectprivacyofcustomer．d)Itispoortosupporttheevidenceoftransaction．e)Itcannotsupportmulti—bank．f、Itispoortosupportmulti—client．Aimingataboveshortagesandapplicationrequirementsinelectronicpayment，thisdissertationproposesanewanonymouselectronicpaymentprotocolonIntemet．Theprotocolisbasedon

5、theidealofaccessauthorizationandrighttransferinadistributedenvironment，andadoptstheaccesscontrolofdelegationcertificateinsteadofidentitycertificateofcustomers．Itisakey—orientedaccegscontr01．Theaccessauthorizationtobankaccountofcustomerisimplementedbythedelegationcegificate．Andtheaccessrightcanbet

6、ransferredbyachainofdelegationcertificates．Thus，theflexiblytransactionauthorizationCallbesupported．Inthepaymentprocess，theuser’saccessrightdirectlybindswithauthorizationcertificate(orcertificatechain)，whichisunnecessarytoprovidebankaccountandidentitycertification．Souser’sbankaccomrltsarewellprote

7、cted；user’sanonymityisgained；efficiencyoftransactionisalsoimproved．Thedissertationproposesanewprotocoltransactionmodel．Exceptingforcustomer,merchantandbank,themodelintroducesanintermediatortoprocessthepaymentandintrodu