AUTHENTICATION
Authentication is a process that involves identifying
individuals based on their identity credentials and giving access to the system
with respect to their identity. It is initialized by the client sending a
packet with credentials at the beginning of the connection, with the client
repeating the authentication request until acknowledgement is received. OTP
encounters several security challenges involved in the conventional static
password authentication including eaves dropping, repay, and password guessing
attacks. The authentication process in CHAP is always initialized by the server
or host and can be performed anytime during the session, even repeatedly.
MSCHAP is an encrypted authentication mechanism which works very similar to
CHAP. The biggest difference between EAP and other method is the authentication
phase of EAP is not in the picture. EAP is a new PPP authentication protocol
that allows for an arbitrary authentication method. The lesson concludes with a
discussion on the authentication and its implementation.
KEYWORDS
OTP - One Time Password
CHAP - Challenge-Handshake
Authentication Protocol
PAP - Password Authentication
Protocol
EAP - Extensible Authentication
Protocol
TLS - Transport Layer Security
FAST - Flexible Authentication via Secure
Tunneling
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