While playing an increasing role in the field of air-space integrated networks, terminal entities are exposed to more serious security risks than ordinary terminal entities on the ground, including but not limited to astronomical risks (e.g., solar activity), link disruptions, and malicious attacks. In the integrated air-space-space network, after the terminal entity is loaded into the rocket for launch, real-time monitoring measures are implemented on the ground site for all links to the intended orbit. On top of the real-time monitoring measures, the need for a comprehensive evaluation of the air-space integration network is growing. In this paper, we further classify the security requirements and evaluation benchmarks of the terminal entities of the air-space integration network around the security evaluation requirements of the air-space integration network. On this basis, the relevant concept of trust value is introduced to assess the security status of terminal entities of air-space-sky integrated networks, and on this basis, a security assessment system of air-space-sky integrated network terminals is proposed. The exploration and development of field applications are initially realized.
As a product of the combination of information and energy technology, the energy internet is enormous and complex, and the absence of security safeguards at any aspect of it can cause incalculable damage. Aiming at the problems that Energy Internet terminals are difficult to be trusted and the integrity of massive terminals cannot be guaranteed, this paper designs and implements a set of comprehensive credibility measures and security protection schemes, isolates various malicious operations, and ensures that the system is always in a credible state. Specifically, we develop a secure TF card control program in the Android terminal application layer to realize the overall security scheme. Experimental results prove that this security protection scheme can effectively detect illegal application packages in energy Internet terminal devices, resist malicious programs, and protect key data from theft at the same time, achieving security protection in the "thing-to-thing" interconnection scenario of the Energy Internet.
In the field of Internet of Things (IoT), terminal security has always been an extremely important independent research topic. In the terminal security research, in addition to the security enhancement of terminal entities, the security status evaluation of terminal security has also become an independent subset of the security research in the IoT field. However, it should also be noted that the security attributes of IoT terminals can include many aspects, so judging the security of IoT terminals based on the overall security form is not enough for the security of terminal entities. This paper introduces the concept of volatility from the overall situation assessment to the meta attributes that constitute the overall security situation, and preliminarily realizes the construction of a concise model based on historical data to judge the meta attributes that may affect the overall security in the future. At the same time, a concise verification system is built based on the application scenario of the power IoT terminals currently under research to preliminarily realize trend prediction, further expand the trust evaluation of IoT terminals, and clarify the direction of further research.
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