CA認(rèn)證中心的研究與應(yīng)用.pdf

1、武漢理工大學(xué)碩士學(xué)位論文CA認(rèn)證中心的研究與應(yīng)用姓名：王世賢申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：章社生吳業(yè)福2003.3.1武漢理工大舉碩士學(xué)位論文AbstractWiththedevelopmentoftheInternet，E—Commercehasgoneintoourliving。AlthoughE—CommercegivesUSmuchconvenience，itbringsUStroublesomeproblem

2、swhichtraditionalcommercehasnot。InauthoritativeentityCallexpose，modifymessagetransferedbyInternetTheentityinE—CommerceCaBrepudiatehiscommercialbehaviorThecombinationusageofasymmetricandsymmetricalgorithmcaninsuretheinteg

3、rity，confidentiality，non—repudiationofmessagewhichareneedinECommerceDigitalcertificateisalleffectualmeasureCA(Certificateauthority)，asthetrustedthirdpart，ischargedwithentityauthenticationinECommerceCAaffirmstheentityiden

4、tity，thenbindstheentity’Spublickeyandtheidentitytogetherbysigningintheentity’Scertificate。ThecertificateisallidentifierofentityinECommerceWhentheentityuseshiscertificate，CAmaintainsthebinding。Thispaperstudiestheauthentic

5、ationprincipleandthemethodofimplementingtheCAInchapterl，thepaperintroducesthestateofECommerce，therecentstudystateofPKI，andthebackgroundofthisprojectInchapter2，cryptographyisintroduced，includingasymmetricalgorithm，symmetr

6、icalgorithmandothercryptographyconceptInchapter3，thepaperintroducestheconceptofcertificateandPKIInchapter4，thepaperstatestheprocessofCAmanagementforsecretkeyandcertificate，andcorrespondingtechnology。Inchapter5，thepaperdi

7、scussestheentrustmodelofCAAtlast，inchapter6，thepaperintroducestheimplementprocessofasimpleCAsystemInthesystem，theusageofsecurityEDImessagetransmissionisconsideredKeyword：CertificateAuthorityasymmetricencryptdigitalcertif