Research on Power Analysis Against Software-based and Hardware-based Cryptographic Circuits

Nowadays, cryptographic circuits have been widely used in many fields such as finance, transportation and government business. Such devices have software and hardware implementations, as they both have certain weakness and constraints. In this paper, we research on both software and hardware cryptographic circuits based on the side channel technology. By using different power leakage models, we can point out the weakness operations of a cryptographic circuit that leaks secret information. Furthermore, we research on the differences between software and hardware implementations of SM3-HMAC, and propose power analysis methods respectively.