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Differential entropy analysis of the IDEA block cipher
2014
Journal of Computational and Applied Mathematics
This paper describes a new cryptanalytic technique that combines differential cryptanalysis with Shannon entropy. We call it differential entropy (DE). The objective is to exploit the non-uniform distribution of output differences from a given mapping as a distinguishing tool in cryptanalysis. Our preferred target is the IDEA block cipher, since we detected significantly low entropy at the output of its multiplication operation. We looked to further extend this entropy analysis to larger
doi:10.1016/j.cam.2013.08.002
fatcat:uajvnbbrzzc2nled65zejd2cta