New metric for side-channel information leakage: Case study on EM radiation from AES hardware

Research into electromagnetic (EM) security emerged with the advent and development of information communication technology. In general, information leakage is of great concern, and of particular concern is the information leaked via EM radiation from cryptographic hardware (also known as EM side-channel information). We simulated this form of information leakage in order to perform a quantitative evaluation of the problem. The proposed metric, the information leakage rate, enables us to compare the quality of a measurement system for EM side-channel information, which helps to advance a fair discussion of EM security.