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Page last modified:  01/30/02 03:25 AM

Authentication Protocols

Protocol Encryption Level Supports Notes
PAP Low MS systems, many non MS systems Plain text passwords
CHAP Medium MS systems, many non MS systems Uses MD5
MS-CHAP Medium MS systems Challenge/response
VPN and dial up
MS-CHAP v2 High MS systems VPN all MS systems
Dialup NT/2000 only
EAP High Windows 2000, some non MS systems Plug in components