Principle and simulation of differential power analysis attack based on AES encryption device

Side channel attack is highly focused in the field of information security technology currently. Instead of using the traditional cryptanalysis methods,SCA uses the information such as running time, power consumption,which leaked from the process of data encrypting and decrypting to analyse and attack the encrypted system. Differential power analysis is one of the most commen form of SCA. This article presents the principles of DPA attack and AES algorithm in detail and simulates standard DPA attack based on AES algorithm and provides a theoretical basis and experimental data for energy analysis attack.