Side-Channel Attack of Lightweight Cryptography Based on MixColumn: Case Study of PRINCE

Lightweight cryptography is implemented in unrolled architecture generally, which has the characteristics of low latency and high real-time performance but also faces threat Side-Channel Attack (SCA). Different from traditional loop architecture, requires separate protection against SCA each round. This leads to that very sensitive number rounds need be protected SCA. In this paper, we propose an optimized method for chosen-input attack can effectively increase differential propagation recover key fourth round PRINCE first time. research evaluates hardware overhead two types Threshold implementation (TI) PRINCE. The experimental results indicate TI imposes substantial on circuit, therefore a specified required.