量子密碼術(shù)的安全性信息論研究.pdf

1、華中師范大學(xué)碩士學(xué)位論文量子密碼術(shù)的安全性信息論研究姓名：鄒明申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：光學(xué)指導(dǎo)教師：張國(guó)平20050601AbstractAstherepresentativeofquantumcryptography，thequantumkeydistribution(QKO)isasuccessfulmodelthatthequantuminformationtechniqueisappliedintotheconventional

2、communicationsThesecurityofthequantumcryptogramisunconditionalfortheHeisenberguncertaintyprincipleandquantumstatenocloningtheorem，sothequantumcryptogramsystemhastheadvantagethattranditionalcryptogramsystemhasnotIntheInfo

3、rmationtheoryinvestigationforthequantumcryptography，howwecomputethequantityofinformationthattheeavesdropperEvemadlegalreceiverBobacquire，andthecharacteristicofthequantityofinformation，theboundaryofquantityofinformation，t

4、hecontainingquantityofinformationinaparitybitetc，arethekeyproblemstoquantumcryptographyOnlytheoneknowthequantityofinformationEveacquiringthenlegalcorrespondentcanadoptthevalidmeasurementandguaranteethecorrespondencesafet

5、yInthispapeLasthefoundationofQKDsecurityresearch，somequantumphysicsandinformationtheoriesareintroducedTheprinciplesoftheBB84andB92protocolsareexplainedatsomelength，Therealizationissuesoftheseprotocolsimportantforthesecur

6、ityaspectarediscussedandareviewofcurrentexperimentalprogressesinthefieldispresented。ForBB84andB92protocols，adetailedinvest璁a(chǎn)tionisdonewiththetheoryaboutthequantummeasurementchannelandthequantuminformationtheoryTherelatio

7、nbetweenthemutualinformationbetween血esignal’sdelivererthelegalreceiverandtheeavesdropperthebiterrorrateduringpropagatingthesignalsandtheeavesdroppingwayaregivenandsomeacademiccriteriaforcheckingEveisestimatedKeywords：Qua