CSSLP · Question #97
Which of the following ensures that a party to a dispute cannot deny the authenticity of their signature on a document or the sending of a message that they originated?
The correct answer is D. Non-repudiation. Non-repudiation is a security principle that prevents an individual from denying they performed an action, such as sending a message or signing a document.
Question
Which of the following ensures that a party to a dispute cannot deny the authenticity of their signature on a document or the sending of a message that they originated?
Options
- AConfidentiality
- BOS fingerprinting
- CReconnaissance
- DNon-repudiation
How the community answered
(45 responses)- A2% (1)
- B2% (1)
- C7% (3)
- D89% (40)
Why each option
Non-repudiation is a security principle that prevents an individual from denying they performed an action, such as sending a message or signing a document.
Confidentiality ensures that information is accessible only to those authorized to have access.
OS fingerprinting is a technique used to determine the operating system of a remote host.
Reconnaissance involves gathering information about a target system or network, often as a preliminary step in an attack.
Non-repudiation provides irrefutable proof of origin or delivery, ensuring that a sender cannot falsely deny having sent a message and a receiver cannot falsely deny having received it. This is typically achieved through digital signatures, logging, and timestamps, which bind a specific action to a specific entity.
Concept tested: Non-repudiation principle in information security
Source: https://learn.microsoft.com/en-us/security/security-fundamentals/security-governance/security-principles-concepts#non-repudiation
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