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Full Paper Title Name University Authentication Protocols The Challenge handshake authentication protocol is used to validate the identity of a computer, connection or a request on the network. The validation process takes place in the initial stages, when connection ‘A’ request to the connection ‘B’ for establishing a communication channel.


Moreover, these authentication procedures initialize at random intervals (CHAP, challenge handshake authentication protocol). Extensible Markup Protocol is more advanced as compare to CHAP as it supports multiple authentication methods. One more significant advantage EAP has that it executes on the link layer without IP address. Consequently, it is designed to support its own operations for retransmission of authentication request and order delivery. Moreover, the mechanism of EAP is based on lock step protocol concluding that it will support only a single packet in flight. This directs towards a negative factor for EAP that is not suitable for corporate networks having bulk data transmission (EAP, extensible authentication protocol). Password Authentication Protocol initially sends a LCP packet in order to create communication on a point-to-point connectivity over the network during link establishment. After the establishment of the link, PAP or PPP provides an authentication mechanism, which is optional. The optional authentication mechanism is provided prior to the network layer protocol stage. Previous two protocols do not have an optional authentication mechanism. ...
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