Challenge-Handshake Authentication Protocol

nouncandidate·updated May 9, 2026

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The Challenge-Handshake Authentication Protocol uses a challenge/response authentication mechanism where the response varies every challenge to prevent replay attacks.

MWE

Classifications

per-axis with provenance

Entity Type

Credential85%llm-generatedllm:claude-haiku-4-5

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Sensitivity

—60%llm-generatedllm:claude-haiku-4-5

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Information Class

—50%llm-generatedllm:claude-haiku-4-5

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Variants

4 surface forms

acronym: CHAP
plural: Challenge-Handshake Authentication Protocols
possessive: Challenge-Handshake Authentication Protocol's
pluralpossessive: Challenge-Handshake Authentication Protocols'

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