The impact of electromagnetic security on computer systems and networks

Electromagnetic compatibility (EMC) and compromising emanations (CE) are two centrally important aspects of computer systems closely related to security. This paper will discuss the EMC for functional safety, and investigate the risk of emission security on computer system architecture. Initially, the EMC issues for the electromagnetic emission of computer as well as the susceptibility of tremendously increased critical circuits are presented. Then, impact of electromagnetic security in ubiquitous applications based on computer technology is discussed, which encompasses the damage of electromagnetic environment effects (E3), CE or TEMPEST example and emission limits requirements. Finally, the protection means of computer functional security are provided. The paper states the need for the guidelines on controlling EMC and the process of CE to achieve electromagnetic security of computer systems.