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1、加密和密码学的毕业论文AESadvancedencryptionstandardWiththerapiddevelopmentoftheInternet,variousapplicationsbasedontheInternethavealsobeengrowingrapidly.However,becausetheInternetisanopenenvironment,anyonecanatanytime,anywhereaccesstotheInternettoobtaintherequiredinformation,
2、italsomakestheInternetinformationtransmissionandstoragesecurityproblemsbecometheimportantfactorsaffectingthedevelopmentofInternetapplications.Becauseofthis,infomationsecuritytechnologyhasbecomeahottopicforpeopletostudyInternetapplications.Informationsecuritytheory
3、andtechnologyresearchincludingpasswords,securityprotocolsagainsttechnology,securityarchitecturetheory,informationtheoryandtechnology,networksecurityandsafetyproducts,andmanyotherfields・Inthispaper,thetheoryandimplementationofcryptographicalgorithmisthefoundationof
4、informationsecurityresearch.Ensuringthereliabilityandsafetyofdataencryptionalgorithmisveryimportanttotheapplicationofalgorithmtheorytovarioussafetyproducts・Forallkindsofelectronicinformationisencryptedtoensurethatinthestorage,processing,transmissionandexchangeproc
5、esswillnotleak,istoprotectitsimplementation,effectivemeasurestoensureinformationsecurity.InJanuary1977,DataEncryptionStandard,theworld,sfirstStandardforpracticalgroupingcryptography,wasofficiallyreleasedtothepublic・ButDES,after20yearsofpractice,isnowconsideredunre
6、liable.NISTreleasedonJanuary2,1997advancedencryptionstandard(AES-FIPS)researchanddevelopmentplan,andinthesameyearonSeptember12,formalannouncementissuedsolicitationcandidatealgorithm,NISTwanttomakesureaprotectsensitiveinformationopen,freeanduniversalasAESalgorithm,
7、insteadofDES,toreplacethecommercialapplicationofDES・Inthesolicitationannouncement,NIST,sbasicrequirementforthealgorithmisthatthealgorithmmustbeagroupingpasswordfortheprivatekeysystem,supportingthe128bitsgroupinglengthandthelengthof128,192,256bits・Afterthreeroundso
8、fselection,Rijndaelfinallywon.OnOctober2,2000,NISTannouncedtheadoptionoftheRijndaelalgorithmasthenewadvancedencryptionstandard・RijndaelisaBelgiancryptog