In law, the act or process of questioning prospective jurors to determine whether they are qualified and suitable for service on a jury. The questioning attorneys may dismiss a juror for cause, such as when bias or preconceived notions of guilt or innocence are in evidence; they also have a limited number of peremptory challenges that they can use to dismiss a juror for any or no reason.
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CHAP is an authentication scheme used by Point to Point Protocol (PPP) servers to validate the identity of remote clients. CHAP periodically verifies the identity of the client by using a three-way handshake. This happens at the time of establishing the initial link, and may happen again at any time afterwards. The verification is based on a shared secret (such as the client user's password).
CHAP provides protection against playback attack by the peer through the use of an incrementally changing identifier and of a variable challenge-value. CHAP requires that both the client and server know the plaintext of the secret, although it is never sent over the network.
|Description||1 byte||1 byte||2 bytes||1 byte||Variable||variable|
|Challenge||Code = 1||ID||Length||Challenge length||Challenge value||Name|
|Response||Code = 2||ID||Length||Response Length||Response value||Name|
|Success||Code = 3||ID||Length||Message|
|Failure||Code = 4||ID||Length||Message|
|Flag||Address||Control||Protocol (C223(hex))||Payload (table above)||FCS||Flag|