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Challenge-Handshake Authentication Protocol
Challenge-Handshake Authentication Protocol

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!!! Overview
[{$pagename}] ([CHAP]) is defined in [RFC 1994] authenticates a user or network host to an authenticating entity.
That [entity] may be, for example, an [Internet] [Service Provider]. CHAP is specified in RFC 1994.
[{$pagename}] provides protection against [replay attacks] by the peer through the use of an incrementally changing identifier and of a variable challenge-value.
[{$pagename}] requires that both the [client] and [server] know the [plaintext] of the [credential], although it is never sent over the network. Thus, [{$pagename}] provides better security as compared to [Password Authentication Protocol] ([PAP]) which is vulnerable for both these reasons.
The [MS-CHAP] variant does not require either peer to know the [plaintext] [credential] and does not transmit [MS-CHAP], but has [vulnerability].
!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
This page (revision-1) was last changed on 29-Nov-2024 16:16 by UnknownAuthorTop