Power attack on stream cipher MICKEY 2.0
Liu Jia-xiao · Journal of PLA University of Science and Technology · 2009
In order to seek security vulnerability of hardware realization and the algorithm system for power analysis attack and get a thorough understanding about the security coefficient of MICKEY,a differential power attack algorithm was proposed.Based on its simple hardware realization and resistance to traditional technologies,the three-input-XOR unit was taken as the breakthrough point.By analyzing the consumed power and the statistical characteristics of the register R and S in MICKEY,the correlationship between the feedback bit and the consumed power was found.The significant difference between the peaks with right or wrong guessed bits by software simulation was proven.The result of the simulated attack shows that it takes only 48 seconds to obtain the whole 80 secret key bits,and the power analysis attack algorithm is effective and feasible.