Path-Changed Mirror Circuit against Local Electromagnetic Analysis

Abstract

Local electromagnetic analysis has posed great threat to the security of cryptographic processor. This paper analyzed the mirror circuit characteristic, and find that mirror circuit has location-dependent leakages, two countermeasures named R-Box and upside down network (UDN) are introduced to eliminate location-dependent leakage in mirror circuit. The security of the two countermeasures when machine learning tools are applied will be analyzed.