信息加密技术论文

119491949-19751946219751976197622.1DES3DESAES(DES)keydatamodekeydatamode64keykeyDESDES64DES64568DES56DES56DESDES2.2RSARSA1977RonRivestAdiShamirhLenAdlemanISORSARSARSA5001024DESIDEARSARSAABn600bitsSET(SecureElectronicTransactionCA2048bits1024C)RSA3VPN3.1RSA(1)(2);(3);(4)PGP(PrellyGoodPriVacy)RSAIDEAEmailPEM(PrivaleEnhancedMail)RSADESE-mailE-mail1)2)SSL(secureSockelsLayer)3.2VPNLANLocalAreaNetworkLAN/VirtualPrivateNetworkVPNLANLAN45