Principles for protecting material accounting systems from data falsification
This study is part of a larger effort involving the development of regulatory licensing criteria and guidance for an upgraded material accounting rule for fixed-site, commercial nuclear fuel-cycle facilities. Our approach was to examine the vulnerability events of the Generic Minimal Material Accounting (GMMA) system from the point-of-view of a systems analyst and an internal auditor and then determine some acceptable methods for protecting them. During the course of this task, four protection principles were identified which have the potential of controlling against data falsification: Data Control (DC) - to provide assurance that sufficient controls be involved in the handling of data, especially with regard to the introduction of original data; Control on Controls (CC) - to ensure accuracy, validity, and integrity of information or procedures; Skip Echelon Verification (SEV) - to verify by senders of data that the data are properly used; and Secondary Echelon Forwarding (SEF) - to verify by recipients of data that the data were previously used in an appropriate manner by the sender. The extent to which these or other protection principles should be applied to achieve protection against data falsification and Special Nuclear Material (SNM) diversion depends on the degree of protection desired and the level of threat from which a system must be protected. Data falsification and SNM diversion must involve personnel, and the personnel of concern here are insiders who perform the accounting functions as well as those who have authorized access to the accounting elements. Therefore, protection principles must be implemented with regard to organizational constraints. Our approach to setting organizational criteria is basically to ensure that there is adequate separation of responsibilities for elements of control mechanisms.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA); Advanced Technology Associates, Inc., Dublin, CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5186818
- Report Number(s):
- NUREG/CR-1731; UCRL-53010; ON: TI86000149
- Country of Publication:
- United States
- Language:
- English
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