certified TEMPEST technical |
An experienced, technically qualified U.S. Government employee who has met established certification requirements in accordance with CNSS approved criteria and has been appointed by a U.S. Government Department or Agency to fulfill CTTA responsibilities. |
certifier (C.F.D.) |
Individual responsible for making a technical judgment of the system’s compliance with stated requirements, identifying and assessing the risks associated with operating the system, coordinating the certification activities, and consolidating the final certification and accreditation packages. |
chain of custody |
A process that tracks the movement of evidence through its collection, safeguarding, and analysis lifecycle by documenting each person who handled the evidence, the date/time it was collected or transferred, and the purpose for the transfer. |
chain of evidence (C.F.D.) |
A process and record that shows who obtained the evidence; where and when the evidence was obtained; who secured the evidence; and who had control or possession of the evidence. The “sequencing” of the chain of evidence follows this order: collection and identification; analysis; storage; preservation; presentation in court; return to owner. |
chaining |
Direct or relayed connections from a higher accredited domain to a series of lower accredited domains without passing through an isolated device that implements the enforcement of all applicable approved policy decisions for each domain transfer. |
challenge and reply authentication |
Prearranged procedure in which a subject requests authentication of another and the latter establishes validity with a correct reply. |
check word |
Cipher text generated by cryptographic logic to detect failures in cryptography. |
checksum |
A value that (a) is computed by a function that is dependent on the contents of a data object and (b) is stored or transmitted together with the object, for detecting changes in the data. |