new technique of the puter network

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1、Newtechniqueoftheputernetwork-->Neationeconomy,beingtheputertobemoretode本论文由.51lunportance.NoainlyintroducetheneatelybeetheInterremainsaentingmersaretryingtoimbueail)andsecuritytroubles.Allthe:Criticsercial,legalandpoliticalpressurescouldhinderthetypesofinnovationsthatmadetheInterongthegraduat

2、estudentseaninglesstestdatafloee-mailafeunicationsprotocolcalledTCP/IPinthelate70s,thedomainnamesysteminthe80sandtheail-in1990.TheInterexpandedbeyonditsinitialmilitaryandeducationaldomainintobusinessesandhomesaroundtheanfortheInter'skeyoversightbody,heistryingtodefendthecoreaddressingsystemfro

3、moutsidethreats.Heacknofinished,andchangesareinstoretomeetgroandsformultimedia.Netakeonly"bestefforts"atdeliveringdatapackets,andCrockersaidbettergu本论文由.51lunonericaOnlineInc.,-->amongothers,arecurrentlytryingtoretrofittheailsenderscanbeauthenticated-aessagessentusingspoofedaddresses.Manyfeatu

4、resbeingdevelopedtodayunicationandareoftenusedtoprotectonlinetransactions.Digitalcertificatesareissuedbyatrustedthirdpartyknoanufacturersareoneofthelatestgroupstousethem.Notlongago,VeriSignInc.announceditsCableModemAuthenticationServices,akerscangeneratecryptographickeysandcorrespondingdigital

5、certificatesthatmanufacturersorcableserviceproviderscanusetoautomaticallyidentifyindividualmodems.This‘ast-mile’authenticationnotonlyprotectsthevalueofexistingcontentandservicesbutalsopositionscablesystemoperatorstobringabroadnearket.beddedinthecertificateincludestheholder’snameande-mailaddres

6、s,thenameoftheCA,aserialnumberandanyactivationorexpirationdataforthecertificate.ployedbycertificatesthatatheauthenticityofaberforanonlinetransaction,thebrowserwillaccessthepublickeyintheserver’sdigitalcertificatetoverifyitsidentity.RoleofPublic-KeyCryptographyThepublickeyisonehalfofapairofkeys

7、usedinpublic-keycryptography,whi-->chprovidesthefoundationfordigitalcertificates.Public本论文由.51lunatchedpublicandprivatekeysforencryptionanddecryption.Thesekeyshaveanumericalvaluethat’susedbyanalgorithmtoscrambleinformationandmakeitreada