Challenge Handshake Authentication Protocol (CHAP) and Extensible Authentication Protocol (EAP)

Challenge Handshake Authentication Protocol (CHAP) and Extensible Authentication Protocol (EAP) This lesson covers different methods of remote authentication. Three of these methods of remote authentication include:
  • Challenge Handshake Authentication Protocol (CHAP)
  • Extensible Authentication Protocol (EAP)
Challenge Handshake Authentication Protocol (CHAP) is a one-way authentication for remote access connection. CHAP does not send credentials in clear text, nor does it verify the end point. There is also a Microsoft enhanced version of CHAP called MSCHAP that utilizes two-way authentication. Extensible Authentication Protocol (EAP) is a framework for authentication and is a standardized authentication method which allows us to configure devices to authenticate according to a network’s authentication method. EAP runs over the data-link layer and does not need an IP address.
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