Authentication

 

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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