(Challenge Handshake Authentication Protocol) A type of authentication where the person logging in uses secret information and some special mathematical operations to come up with a number value. The server he or she is logging into knows the same secret value and performs the same mathematical operations. If the results match, the person is authorized to access the server. One of the numbers in the mathematical operation is changed after every log-in, to protect against an intruder secretly copying a valid authentication session and replaying it later to log in. Often contrasted with PAP.
Challenge Handshake Authentication Protocol. Log-in security procedure for dial-in access.
Challenge Handshake Authentication Protocol. 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.
See Challenge Handshake Authentication Protocol (CHAP).
Challenge Handshake Authentication Protocol. An authentication protocol that is used to log on to an ISP. An ISP network access server (NAS) sends a random value (named "challenge") to a client (subscriber) computer which then encrypts it using a password and sends the encrypted value back to the NAS. The NAS forwards it along with the challenge and the client's user name to authentication server. CHAP is used with PPP. The presence of encryption makes it more secure than PAP. Also see PPP and PAP.
Challenge Handshake Authentication Protocol. This security protocol allows access between data communications systems prior to and during data transmission. CHAP uses challenges to verify that a user has access to a system.
Challenge Handshake Authentication Protocol. a challenge-response LCP authentication protocol resistant to playback attacks. CHAP runs after LCP negotiation is complete but before any NCPs are started.
See see Challenge Handshake Authentication Protocol..
Challenge Handshake Authentication Protocol. Three-way handshake that authenticates user using MD5.
An authentication technique where after a link is established, a server sends a challenge to the requestor. The requestor responds with a value obtained by using a one-way hash function. The server checks the response by comparing it its own calculation of the expected hash value. If the values match, the authentication is acknowledged otherwise the connection is usually terminated.
A method of authentication when connecting to an Internet service provider.
CHAP (Challenge Handshake Authentication Protocol) is a more secure procedure for connecting to a system than the Password Authentication Procedure (Packet Level Procedure).
A security (authentication) protocol used with PPP. It sends an encrypted hash of the password to the client for comparison to the password entered. It does not send the password over the PPP connection. Windows CE and the Pocket PC do not support encrypted CHAP password authentication.
An acronym for Challenge Handshake Authentication Protocol.
An authentication method that can be used when connecting to an Internet Service Provider. CHAP allows you to login to your provider automatically, without the need for a terminal screen. It is more secure than the Password Authentication Protocol (another widely used authentication method) since it does not send passwords in text format.
Challenge Handshake Authentication Protocol. A type of authentication protocol in which the authentication agent sends the client program a key to be used to encrypt the user name and password. CHAP doesn't only require the client to authenticate itself at startup time, but sends challenges at regular intervals to make sure the client hasn't been replaced by an intruder, for instance by switching phone lines. Also see PAP.
(Challenge Handshake Authentication Protocol) – Is a security feature supported on lines using PPP encapsulation that prevents unauthorised access , CHAP does not itself prevent unauthorised access , it merely identifies the remote end, though is a more secure procedure for connecting to a system than PAP. The router or access server then determines whether that user is permitted access. See Also: PPP, PAP To top
Your CHAP password is used to authenticate your entry when connecting to BTinternet. Each BTinternet account is allocated its own unique CHAP password. Go to My Account if you need to know your CHAP password.
(Challenge Handshake Authentication Protocol). An authentication protocol used in PPP protocol. Uses a username and a password.
Challenge Handshake Authentication Protocol (CHAP) is a type of authentication in which the authentication agent sends the client program a key to be used to encrypt the username and password, enabling the username and password to be transmitted in an encrypted form.
(Challenge Handshake Authentication Protocol) Authentication scheme for PPP where the password not only is required to begin connection but also is required during the connection - failure to provide correct password during either login or challenge mode will result in disconnect.
Challenge Handshake Authentication Protocol. A method of security on PPP links, where to establish a link peers must exchange a password or plain text "secret
(Challenge Handshake Authentication Protocol). The protocol used to verify a username and password during PPP connections. Also see PAP PPP
Challenge Handshake Authentication Protocol. 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.
A type of authentication in which the authentication agent (typically a network server) sends the client program a key to be used to encrypt the username and password. This enables the username and password to be transmitted in an encrypted form to protect them against eavesdroppers.
Challenge Handshake Authentication Protocol. 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.
Challenge-Handshake Authentication Protocol - A technique to authenticate initiators and targets.
Challenge Handshake Authentication Protocol, a session-based two-way password authentication scheme.
Challenge Handshake Authentication Protocol, a type of authentication in which the authentication agent (typically a network server) sends the client program a random value that is used only once and an ID value. The sender and peer must share a predefined secret.
(Challenge Handshake Authentication Protocol) One of the two main authentication protocols used to verify a user's name and password for PPP Internet connections. CHAP is more secure than PAP because it performs a three-way handshake during the initial link establishment between the home and remote machines. It can also repeat the authentication anytime after the link has been established.
Challenge Handshake Authentication Protocol. Security feature supported on lines using PPP encapsulation that prevents unauthorized access. CHAP does not itself prevent unauthorized access, it merely identifies the remote end. The router or access server then determines whether that user is allowed access. Compare to PAP.
Acronym for Challenge-Handshake Authentication Protocol, which is an authentication method used by PPP servers to validate the identity of the originator of the connection.
Challenge Handshake Authentication Protocol. A Point-to-Point Protocol that provides a secure method for hosts to establish their identities over the link.
Challenge Handshake Authentication Protocol is a login security protocol.
Challenge Handshake Authentication Protocol. 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.
An authentication protocol used by Microsoft remote access and Network Connections. Using CHAP, a remote access client can send its authentication credentials to a remote access server in a secure form. Microsoft has created a Windows-specific variant of CHAP called MS-CHAP. See also: remote access server; remote access
In computing, the Challenge-Handshake Authentication Protocol (CHAP) is an authentication protocol used to log on a user to an Internet access provider.
Challenge Handshake Authentication Protocol. A method of establishing security on PPP links where the peers must share a plaintext "secret." The caller sends a challenge message to its receiving peer and the receiver responds with a value it calculates based on the secret. The first peer then matches the response with its own calculation of what the response should be. If the values match, the link is established.
A protocol that uses a three-way handshake to periodically verify the identity of the peer throughout the life of the connection. The server sends to the remote workstation a random token that is encrypted with the user's password and sent back to the server. The server performs a lookup to see if it recognizes the password. If the values match, the authentication is acknowledged; if not, the connection is terminated. A different token is provided each time a remote user dials in, which provides additional robustness.
Challenge Handshake Authentication Protocol. A protocol that authenticates remote users. CHAP is a server-driven, three-step authentication mechanism that depends on a shared secret password that resides on both the server and the client.
Challenge Handshake Authentication Protocol. It as an authentication protocol that is commonly used in dial-up connections. It is a PPP protocol.
