Power attack of synchronous stream cipher MICKEY and Trivium

To improve the relevance and effectiveness of power analysis(PA)attack on synchronous stream ciphers,a selection strategy of attack point for PA attack is proposed.Firstly,the differences of the energy component between synchronous stream ciphers and block ciphers are analyzed,and PA attack points selection criteria of synchronous stream cipher is proposed.Then, an selection strategy of PA attack for different attack scenarios is proposed according to the structural characteristics of synchronous stream ciphers.Finally,two specific attack schemes for MICKEY and Trivium,two hardware-oriented synchronous stream cipher algorithms in eSTREAM project,are given respectively.Simulation attack experiments are conducted by using EDA tools,e.g.PrimeTimePX et al,to obtain the simulation power consumption of the cryptographic algorithms.The results show that the above-mentioned attacks can successfully recover the key information and indicate that the selection strategy of attack point is reasonable.