Defined term

Challenge-response Protocol

Challenge-response Protocol: An authentication protocol where the verifier sends the claimant a challenge (usually a random value or a nonce) that the…

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Cybersecurity

Definition

An authentication protocol where the verifier sends the claimant a challenge (usually a random value or a nonce) that the claimant combines with a secret (often by hashing the challenge and a shared secret together, or by applying a private key operation to the challenge) to generate a response that is sent to the verifier.

Sources

1
The Cyber Glossary
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