+AU-10 Non-repudiation
---+AU-10(01) Association of Identities
---+AU-10(02) Validate Binding of Information Producer Identity
---+AU-10(03) Chain of Custody
---+AU-10(04) Validate Binding of Information Reviewer Identity

AU-10 Non-repudiation

Control

Provide irrefutable evidence that an individual (or process acting on behalf of an individual) has performed [Assignement: actions].

Discussion

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.

Assessment Objective

irrefutable evidence is provided that an individual (or process acting on behalf of an individual) has performed [Assignement: actions].

Assessment Method

Examine

Audit and accountability policy system security plan privacy plan procedures addressing non-repudiation system design documentation system configuration settings and associated documentation system audit records other relevant documents or records

Interview

Organizational personnel with information security and privacy responsibilities system/network administrators system developers

1. Přehled

Název	Standard
AU-10(01) Association of Identities	Control Bind the identity of the information producer with the information to [Assignement: strength of binding] ; and Provide the means for authorized individuals to determine the identity of the producer of the information. Discussion Binding identities to the information supports audit requirements that provide organizational personnel with the means to identify who produced specific information in the event of an information transfer. Organizations determine and approve the strength of attribute binding between the information producer and the information based on the security category of the information and other relevant risk factors. Assessment Objective the identity of the information producer is bound with the information to [Assignement: strength of binding]; the means for authorized individuals to determine the identity of the producer of the information is provided. Assessment Method Examine Audit and accountability policy system security plan privacy plan procedures addressing non-repudiation system design documentation system configuration settings and associated documentation system audit records other relevant documents or records Interview Organizational personnel with information security and privacy responsibilities system/network administrators system developers
AU-10(02) Validate Binding of Information Producer Identity	Control Validate the binding of the information producer identity to the information at [Assignement: frequency] ; and Perform [Assignement: actions] in the event of a validation error. Discussion Validating the binding of the information producer identity to the information prevents the modification of information between production and review. The validation of bindings can be achieved by, for example, using cryptographic checksums. Organizations determine if validations are in response to user requests or generated automatically. Assessment Objective the binding of the information producer identity to the information is validated at [Assignement: frequency]; [Assignement: actions] in the event of a validation error are performed. Assessment Method Examine Audit and accountability policy system security plan privacy plan procedures addressing non-repudiation system design documentation system configuration settings and associated documentation validation records system audit records other relevant documents or records Interview Organizational personnel with information security and privacy responsibilities system/network administrators system developers
AU-10(03) Chain of Custody	Control Maintain reviewer or releaser credentials within the established chain of custody for information reviewed or released. Discussion Chain of custody is a process that tracks the movement of evidence through its collection, safeguarding, and analysis life cycle by documenting each individual who handled the evidence, the date and time the evidence was collected or transferred, and the purpose for the transfer. If the reviewer is a human or if the review function is automated but separate from the release or transfer function, the system associates the identity of the reviewer of the information to be released with the information and the information label. In the case of human reviews, maintaining the credentials of reviewers or releasers provides the organization with the means to identify who reviewed and released the information. In the case of automated reviews, it ensures that only approved review functions are used. Assessment Objective reviewer or releaser credentials are maintained within the established chain of custody for information reviewed or released. Assessment Method Examine Audit and accountability policy system security plan privacy plan procedures addressing non-repudiation system design documentation system configuration settings and associated documentation records of information reviews and releases system audit records other relevant documents or records Interview Organizational personnel with information security and privacy responsibilities system/network administrators system developers
AU-10(04) Validate Binding of Information Reviewer Identity	Control Validate the binding of the information reviewer identity to the information at the transfer or release points prior to release or transfer between [Assignement: security domains] ; and Perform [Assignement: actions] in the event of a validation error. Discussion Validating the binding of the information reviewer identity to the information at transfer or release points prevents the unauthorized modification of information between review and the transfer or release. The validation of bindings can be achieved by using cryptographic checksums. Organizations determine if validations are in response to user requests or generated automatically. Assessment Objective the binding of the information reviewer identity to the information at the transfer or release points prior to release or transfer between [Assignement: security domains] is validated; [Assignement: actions] are performed in the event of a validation error. Assessment Method Examine Audit and accountability policy system security plan privacy plan procedures addressing non-repudiation system design documentation system configuration settings and associated documentation validation records system audit records other relevant documents or records Interview Organizational personnel with information security and privacy responsibilities system/network administrators system developers

1.1 Odkazy

1.2 Identifikované požadavky

1.3 Související regulace

2. Identifikované požadavky

Požadavky
Zdroj	Požadavek

3. Související regulace

Regulace
Zdroj	Regulace

Propojené úkoly

Vazby
Typ vazby	Úkol
is blocked by	AU-10 Non-repudiation – Assessment Procedure
is blocked by	Non-Repudiation

NIST -
EN: Publications of the National Institute of Standards and Technology (NIST), U.S. Department of Commerce, https://www.nist.gov/, from their electronic versions (OSCAL; SP 800-63-4 from its HTML version, https://pages.nist.gov/800-63-4/). Works of NIST employees are not subject to copyright protection in the United States (17 U.S.C. § 105); the OSCAL content is dedicated to the public domain worldwide (CC0 1.0); outside the United States NIST grants the right to reprint its technical series publications in all formats (NIST copyright statement). Republished courtesy of the National Institute of Standards and Technology; each document names its citation. Divided into sections and converted into the GRCA format, the wording unchanged. Only the versions published by NIST are authoritative.

DE: Veröffentlichungen des National Institute of Standards and Technology (NIST), U.S. Department of Commerce, https://www.nist.gov/, aus ihren elektronischen Fassungen (OSCAL; SP 800-63-4 aus ihrer HTML-Fassung, https://pages.nist.gov/800-63-4/). Werke von NIST-Beschäftigten sind in den USA urheberrechtlich nicht geschützt (17 U.S.C. § 105); die OSCAL-Inhalte sind weltweit gemeinfrei gestellt (CC0 1.0); außerhalb der USA räumt das NIST das Recht ein, seine Technical-Series-Publikationen in allen Formaten neu zu veröffentlichen (Copyright-Hinweis des NIST). „Republished courtesy of the National Institute of Standards and Technology“; jedes Dokument nennt seine Zitierangabe. In Abschnitte aufgeteilt und in das GRCA-Format umgewandelt, der Wortlaut unverändert. Maßgeblich sind allein die vom NIST veröffentlichten Fassungen.