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2003220nnnnnn----nnnnn=//n----nn=n----n----n----n=//--------nIntegrityConfidentialityAvailability•nnnn------/------------nnnnn1----nnn2----n--n----nTrojann3----DOS----nnnn“”VPNnnnnnnn----n----n----nnnnnPKInnnnnnnnnnSniffern/nWeb/Email,nnPKInCPUnnnnnnCPUnnn----LINUXnn(1)n(2)nnnnnnnnnTCPnnnnnnnPKI/PMInnnnnnCAnnPKI----DESAESMD5SHARSAECCDSA==nXrMLnnS-WebServerS-EmailServernWEBSERVICEnnXML1Internet///EndUsers//AgentAgentContentRobot1ContentRobotnContentRobotjContentRobot2AgentAgentAgentAgentDBCluster2InternetInternetKMCluster3nnTCP/IPnhttpftptelnetsmtpPOP3P2PFreenetTriboynnn4nn200211nTREC()nTREC“”199211IBMMicrosoftSunAT&TCMUTREC2002110nNISTDARPAn2002––No.1:ICTNo.1:ICT0.4050.405––No.2:No.2:KerMITKerMIT0.3900.390––No.3:CMUNo.3:CMU0.3690.369––No.4:CLIPSNo.4:CLIPS--IMAGLab0.349IMAGLab0.349––No.5:MicrosoftCambridge0.343(No.5:MicrosoftCambridge0.343())5Long-Karp-RabinnCPUP41GPC10004500M()150%-400%6nn(Direct),nnnnnnnn7nnnnnn