Operation Request Gatekeeper: A software system for remote access control of diagnostic instruments in fusion experiments

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Abstract

Tokamak diagnostic settings are repeatedly modified to meet the changing needs of each experiment. Enabling the remote diagnostic control has significant challenges due to security and efficiency requirements. The Operation Request Gatekeeper (ORG) is a software system that addresses the challenges of remotely but securely submitting modification requests. The ORG provides a framework for screening all the requests before they enter the secure machine zone and are executed by performing user authentication and authorization, grammar validation, and validity checks. A prototype ORG was developed for the ITER CODAC that satisfies their initial requirements for remote request submission and has been tested with remote control of the KSTAR Plasma Control System. This paper describes the software design principles and implementation of ORG as well as worldwide test results. © 2010 American Institute of Physics.

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Abla, G., Fredian, T. W., Schissel, D. P., Stillerman, J. A., Greenwald, M. J., Stepanov, D. N., & Ciarlette, D. J. (2010). Operation Request Gatekeeper: A software system for remote access control of diagnostic instruments in fusion experiments. In Review of Scientific Instruments (Vol. 81). https://doi.org/10.1063/1.3489970

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