AU-10 Non-repudiation
Audit and Accountability
Description
Provide irrefutable evidence that an individual (or process acting on behalf of an individual) has performed [Assignment: organization-defined actions to be covered by non-repudiation].
Supplemental Guidance
Types of individual actions covered by non-repudiation include creating information, sending and receiving messages, and approving information. Non-repudiation protects against claims by authors of not having authored certain documents, senders of not having transmitted messages, receivers of not having received messages, and signatories of not having signed documents. Non-repudiation services can be used to determine if information originated from an individual or if an individual took specific actions (e.g., sending an email, signing a contract, approving a procurement request, or receiving specific information). Organizations obtain non-repudiation services by employing various techniques or mechanisms, including digital signatures and digital message receipts.
Enhancements (4)
What NIST adds to this control. Select one to read its statement.
AU-10(01) Association of Identities
a. Bind the identity of the information producer with the information to [Assignment: organization-defined strength of binding]; and b. Provide the means for authorized individuals to determine the identity of the producer of the information.
AU-10(02) Validate Binding of Information Producer Identity
a. Validate the binding of the information producer identity to the information at [Assignment: organization-defined frequency]; and b. Perform [Assignment: organization-defined actions] in the event of a validation error.
AU-10(03) Chain of Custody
Maintain reviewer or releaser credentials within the established chain of custody for information reviewed or released.
AU-10(04) Validate Binding of Information Reviewer Identity
a. Validate the binding of the information reviewer identity to the information at the transfer or release points prior to release or transfer between [Assignment: organization-defined security domains]; and b. Perform [Assignment: organization-defined actions] in the event of a validation error.
Withdrawn by NIST:
- AU-10(05) Digital Signatures, now in SI-07
Patterns that use this control (5)
Grouped by the emphasis each pattern gives it.