Windows 2000 Authentication Protocols Windows 2000 Authentication Protocols The following table describes the authentication protocols and their encryption levels.. Protocol Supp
Trang 1Authenticating and Permitting Remote Access
Copyright 2002 Microsoft Corporation All Rights Reserved Windows 2000 Authentication Protocols
Windows 2000 Authentication Protocols
The following table describes the authentication protocols and their encryption
levels
Protocol Supports Encryption
level
Microsoft Challenge Handshake
Authentication Protocol
(MS-CHAP).Uses challenge response
authentication
All Windows-based operating systems for VPN and dial-up connections
Medium
Microsoft Challenge Handshake
Authentication Protocol version 2
(MS-CHAP v2)
Uses stronger data encryption keys
and different encryption keys for
sending and receiving
All Windows-based operating systems for VPN connections
Windows 2000 and Windows NT operating systems for dial-up connections
High
CHAP
Uses industry-standard Message
Digest 5 (MD5)
All Microsoft-based operating systems and many non-Microsoft-based operating systems
Medium
Extensible Authentication Protocol
(EAP).Supports a framework for
highly secure authentication plug-in
components
Windows 2000 operating systems and some non-Microsoft-based operating systems
High
Password Authentication Protocol
(PAP).Uses plain text passwords
All Microsoft-based operating systems and many non-Microsoft-based operating systems
Low