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Non-Repudiation is a property achieved through cryptographic methods to protect against an individual or entity falsely denying having performed a particular action related to data. This provides the capability to determine whether a given individual took a particular action such as creating information, sending a message, approving information, and receiving a message.

Related Terms: Integrity, Authenticity, Digital Signature

Source: CNSSI 4009; From: NIST SP 800-53 Rev 4

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