Correlation Power Analysis on ARIA Block Cipher

In recent years,power analysis attack has become one of the most serious threats to block ciphers implemented on integrated circuits,and the research of this field about attack and defense is a hot spot of cryptographic side channel attacks.This paper introduced correlation power analysis attack on Block Cipher ARIA which was announced by Korea National Security Institute.All its theories are based upon the physical characters,power consumption models and data-dependent power consumption.The methods and steps of CPA were presented in detail,and correct secret key of encryption algorithm was cracked successfully with experiments.Experiment results demonstrate that ARIA is vulnerable to correlation power analysis attack by nonlinear S-box lookup table in the operating leaked.Simulation environment of 10 samples are enough to obtain the 128 bit master key in a short time.