Considerations for Emission Security Risks from the Perspective of Signal Processing Techniques

The main scope of this paper is to improve the security risk analysis of critical communication and information systems. One of the major security objectives is to ensure the security emissions generated by electronic equipment, which may contain confidential data. A rigorous risk analysis helps to establish optimal protection solutions to prevent information leakage through compromising emissions. This work analyzes some security threat, reflected in the technical capabilities of the interceptor in the processing of compromising signals, which supports substantially risk analyzes for the protected system. The estimation of the signal to noise ratio of compromising emissions, at the boundary of protected area, had been tested and validated by measurements.