基于DES和ECC混合加密算法的數(shù)字簽名研究與應(yīng)用.pdf

1、西安工業(yè)大學(xué)碩士學(xué)位論文基于DES和ECC混合加密算法的數(shù)字簽名研究與應(yīng)用姓名：李倩申請學(xué)位級別：碩士專業(yè)：計算機(jī)軟件與理論指導(dǎo)教師：沈虹20080515DigitalsignatureresearchandapplicationBasedonDESandECCmixencryptionalgorithmDiscipline：ComputerSoftandTheroystudentSignature：石醌咖，SupervisorSign

2、ature：3AbstractAshumansociallifeofthegrowingdemandforInteract，thenetworksecuritybecomesthekeyquestionwhichInternetandeachnetworkserviceandtheapplicationfurtherdevelopmentThecurrentnetworkattacksmeansasmanyasseveralthousa

3、nds，networkinformationbeingintercepted，altered，reissuedthingshappenfromtimetotime，forthenetworktofurtherpromotetheapplicationandposesamajorthreatHowsecurityinthetransmissionofdatainformationnetworktOidentifytheauthentici

4、t)，ofdatasourcesofinformationtoensurethattheintegrityoftheinformationandnon—repudiationinrecentyearsbecomeahotresearchToenhancethenetworkeffectivelythesecuritycarriesontheencryptionandthedigitalsignaturetothetransmission

5、contentbecomesthekeytechnologiesnesubjectofacomprehensiveanalysisofexistingpasswordsystemofthestatus，hasmadethesimpleoutlinetothepresentinformationsecurity’Spresentsituationandthedataencryptiontechnology’Sbasicconceptand

6、themathematicalmodel，hasanalyzedthesymmetricalkeypasswordtheoryandthepublickeypasswordtheorygoodandbadpoints，analyzethemathematicmodesofECC&DESwhicharetypicalencryptionalgorithmsforPublicandPrivatcKeythemeritanddemeritof

7、thealgorithmsagecomparedinfullscaleThen，developsasimulationsoftware，carriesonthismixalgorithmtheencryptiondecipherandthedigitalsignaturesimulationTheDESencryptionspeedisquick，suitstheencryptionlongdefiniteordersECCcanach

8、ievegooddigitalsignaturetoensuredataauthentic，complete，andSOtheoverallincreaseinthedigitalsignatureprocessspeedandsecurityproblems，andenhancethepracticalityofthedigitalsignatureFinallycomparetheencryptionalgorithmusedtoa