行政審批系統(tǒng)中數(shù)據(jù)加密算法的研究與實現(xiàn).pdf

1、東北大學碩士學位論文行政審批系統(tǒng)中數(shù)據(jù)加密算法的研究與實現(xiàn)姓名：楊隴社申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：王翠榮20041201東北大學碩士學位論文ABSTRACTEncryptionAlgorithmResearchandApplicatoininXZSPSystemAbstractWiththedevelopmentofInternet，EGovernmenthasbeenthenewstyleofthegovernm

2、entalmanagementandservicestepbystepItexpandtoalltherespectsofthegovernmentalactivitiesItismoreandmoreclearlythatgovermentaffairsbeingtransfercompletelytointernetplatformThefull—scaledevelopmentofe—govermentismoreurgentan

3、ditsfuthureismoreandmoreattractivebecauseoftheimpendingdemandforefficaciousandmassDPgovermentaffairsAtthesametime，thesecurityofegovermentisalsoakeysubjectIthasbecameankeyandfocusproblemforthegrowofegovthathowtosetupasecu

4、reandconvenientenviromentforegovandhowtoprotecttheinformationTotheselfcharacterofcurrentcryptography，thispaperdoessomcresearchonnetworkdataencryptintegratedwiththelastresearchdirectionsofcryptographyThepaperintroducesthe

5、secureactualityofXZSPSystem，andthenstudiesonseveraldataeneryptingtechniquesfornetworkemphasizly，egprivate—keyencryption，public—keycncryption，digitalsignature，messageintegritycheckItgivesoutadvantagesanddisadvantagesofsym

6、metricalencryptionandasymmetricalencryptionthroughcomparisonandanalysisThepaperdesignsadataencryptionsystemforXZSPS，whichcombinestheprivatekeyalgorithm3DESwiththepublickeyalgorithmRSAtoencryptdataandsignsonfileswithpubli

7、c—keyalgorithmRSAandone—wayhashfunctionMD5Thesystemcanactualizeencryptionofdata，authenticity，integrityandnonrepudiationofdataThepaperdesigsanencryptingalgorithmclasslibrary，whichhaspowerfulfunctionsEncryptionalgorithmsis

8、envelopedbythesystemwithJavalanguage，andthesystemaffordsinterfancesfortheencryptionrequestsofotherapplicationprogramsTheapplicationcanberunonanyoperationsystemThedataonnetworkcanbeencryptedefficientlywiththesystem，Whichh