Trust Management and Security in Satellite Telecommand Processing

<p>New standards and initiatives in satellite system architecture are moving the space industry to more open and efficient mission operations. Primarily these standards allow multiple missions to share standard ground and space based resources to reduce mission development and sustainment costs. With the benefits of these new concepts comes added risk associated with threats to the security of our critical space assets in a contested space and cyberspace domain. As one method to mitigate threats to space missions this research develops implements and tests the Consolidated Trust Management System (CTMS) for satellite flight software. The CTMS architecture was developed using design requirements and features of Trust Management Systems (TMS) presented in the field of distributed information systems. This research advances the state of the art with the CTMS by refining and consolidating existing TMS theory and applying it to satellite systems. The feasibility and performance of this new CTMS architecture is demonstrated with a realistic implementation in satellite flight software and testing in an emulated satellite system environment.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>