A method of user authentication. Challenge response authentication is carried out through use of the Challenge Handshake Authentication Protocol (CHAP). When a user tries to log into the server; the server sends the user a 'challenge;' which is a r

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1. A method of user authentication. Challenge response authentication is carried out through use of the Challenge Handshake Authentication Protocol (CHAP). When a user tries to log into the server; the server sends the user a 'challenge;' which is a r