Challenge-Response Authentication Hear it!

Challenge-Response Authentication Hacker Definition
In computer security, challenge-response refers to a secret that will lead to authentication of a user. After a user requests access to a system, the server sends back random data, at which point the user encrypts the data using a password. The server can then check the result for authentication. Challenge-response is critical in the process of identifying a remote source as either human or artificial (computer).

See Also: Authentication; CAPTCHA; Server; Password.

Farlex, Inc. The Free Dictionary: Challenge-response in Computer Security. [Online, 2004.] Farlex, Inc. Website. http://encyclopedia.thefreedictionary.com/ Challenge-response%20test.

Browse dictionary entries near Challenge-Response Authentication

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