OT協(xié)議及其應用.pdf

1、山東大學碩士學位論文OT協(xié)議及其應用姓名：郭棟梁申請學位級別：碩士專業(yè)：信息安全指導教師：秦靜20080418AbstractTheconceptofOTprotocolwasfirstintroducedbyMRabinin1981，andithasbeenafundamentalmoduleandprimitiveknowledge，nOWItplaysanimportantpartinmanycryptographicprotoc

2、ols，suchasbitcommitment，zero。knowledgeproofsecuremultipartycomputationandtheprivatetransactionmechanismofdigitalproductionsbasedonOTprotocolisadirectapplicationofOTHoweverthereisnotanarticlewhichcoverstheconnotation，exte

3、nsionandapplicationofOTprotocolcomparativelyall—sidedatpresentSOastomakeittobeasystemicresearchfieldanddirectionThethesiscoordinatesandsummarizespeople’Spreviousachievement，intrDducedtheconnotation，extensionandapplicatio

4、nofOTprotocolsystemicallyItdepictsandanalyzesthemeanings，kindsanddevelopmentcourseofOTprotocol，discussesandanalyzestheexistingoblivioustransferprotocol’Sdesignprincipleandimplement，expatiatesandprovestherelationshipbetwe

5、enOTprotocolandothercryptographyfundamentalprimitives，bringsforwardthemendideaofprivatetransactionmechanismofdigitalproductionsbasedonOTprotocoltomakeitprotecteverytradeside，Sbehalfbetterandthennaildowntheactualquestions

6、whichthefield，sresearchreferto，thereinto，wemaketherelationshipbetweenOTandprimitivePKEbeembodiedtotherelationshipbetweenthePKEwhichareprovablysecureagainstINDCCA2andmaliciousOTweprovethatPKEwhichareprovablysecureagainstI

7、ND—CCA2doesimplymaliciousOTThenwepresentanelectronicvotingschemebasedonOTprotocol，applyOTprotocoltoelectronicvotingforthefirsttime，anditbroadenstheapplicationofOTprotoc01Multiselectionisanimportantrequirementinmanyactual

8、selectionenvironments，butmostpreviouselectronicvotingschemescaneitherjustimplement‘‘selectoneintwo”or“selectoneinmany”votingorachievemulti—selectionwithbadsecurityorefficiencyourelectronicvotingschemeusesthecharacterofOT

9、：protocoltOsatisfytherequirementthatonecanatmostselectkcandidatesoutofncandidates，andsolvessomequestionsthatexistinF00electronicvotingschemewhichisthemainframeofmanykindsofelectronicvotingschemesinmodemtimesTheelectronic