What is Nonce Value?
Nonce Value A randomly or pseudo-randomly generated number used only once in a cryptographic communication to prevent replay attacks and ensure uniqueness.
Source: ISO 27001, NIST Cybersecurity Framework, MITRE ATT&CK
How is “Nonce Value” Used in Practice?
A nonce value is added to each authentication request to ensure that the response cannot be replayed by an attacker.
Certification Exam Relevance
Who Needs to Know This Term?
- SOC Analysts
- Security Engineers
- Incident Responders
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What is Nonce Value?
A randomly or pseudo-randomly generated number used only once in a cryptographic communication to prevent replay attacks and ensure uniqueness.
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