中國(guó)列車控制系統(tǒng)（CTCS）安全通信機(jī)制的研究.pdf

1、北京交通大學(xué)碩士學(xué)位論文中國(guó)列車控制系統(tǒng)（CTCS）安全通信機(jī)制的研究姓名：于宏博申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：鐘章隊(duì)20040201北京交通大學(xué)碩士論又摘要ABSTRACTCTCSChineseTrainControlSystemisthedirectionofdevelopmentoftraincontrolsystemofchinarailway.InCTCSLevel3itusesGSMRtotransmits

2、afeinformationabouttraincontrolbetweenOnboardandTrackside.ThearticlemainlystudiesthesafetycommunicationmechanismprotectinginformationtransmittedbetweenOnboardandTracksideinCTCSlevel3andincludesfollowingresearchwork.1.Atf

3、irstthearticleintroducestheresearchanddevelopmentofCBTCabroadandChineseTrainControlSystemandthendefinesthesystemstructureandprincipleofCTCSlevel3.Thechallengesusingwirelesscommunicationsystemtotransmitinformationabouttra

4、incontrolareanalyzedandtheconceptofsafetyconununicationinCTCSisputforward.2.Thearticleemphasesonstudyingsafetyprotocoltoensuresafetycommunicationandanalyzesthesafeconnectionsetupsafedatatransferandreleaseofsafeconnection

5、.Proceduresof`PeerEntityAuthenticationand`MessageOriginAuthenticationareintroducedtopreventtheauthorizedentityfromestablishingconnectionwiththeunauthorizedentityanddetectanymodificationofmessagefromanactiveatackortransmi

6、ssionerrors.3.DataEncryptionStandard(DES)isstudiedindetails.InCTCSsafetylayerusestheDESEDEinCBCmodetocalculateMessageAuthenticationCode(MAC)topromotesecurityofencryptionalgorithm.4.AtlastitprovidesKeyManagementinCTCSandr