One of two authentication protocols (PAP and CHAP) used by OpenROUTE Networks routers. CHAP is the Challenge Handshake Authentication Protocol, which requires the local router to send a challenge to the connecting router. The router anticipates a specific response. If the connecting router answers with the anticipated response, communication between the two routers continues, if not, the communication channel shuts down.
a challenge-response LCP authentication protocol resistant to playback attacks. CHAP runs after LCP negotiation is complete but before any NCPs are started.
Log-in security procedure for dial-in access. Rather than send an unencrypted password, a random number is sent to the client as a challenge. The challenge is one-way hashed with the password, and the result is sent back to the server. The server does the same with its copy of the password and verifies that it gets the same result to authenticate the user, abbreviated as CHAP.
A method of security on PPP links, where to establish a link peers must exchange a password or plain text "secret
A network server sends the client program a key that can encrypt the username and password. Using this protocol, the username and password can be transmitted in an encrypted form that protects against hackers or other intruders.
An authentication protocol that prevents unauthorized access. CHAP authenticates and identifies the remote end. The router or access server then determines whether the user is allowed access.
A challenge-response authentication protocol for PPP connections documented in RFC 1994 that uses the industry-standard Message Digest 5 (MD5) one-way encryption scheme to hash the response to a challenge issued by the remote access server.
A protocol for authenticating remote users. CHAP is a server-driven, three-step authentication mechanism that depends on a shared secret password on both the server and the client.