Power Analysis of Synchronous Stream Ciphers with Resynchronization Mechanism
Joseph Lano, Nele Mentens, Bart Preneel, Ingrid M.R. Verbauwhede · Lirias (KU Leuven) · 2004
Abstract. In this paper we discuss power analysis of stream ciphers. In such attacks, one measures the power consumption of the algorithm and tries to extract the secret key from these measurements. Power at-tacks have been mounted against block ciphers and public key algorithms but not yet against stream ciphers. In this paper we give a theoretical framework that shows that power analysis of stream ciphers with resyn-chronization mechanism is feasible and describe possible attack method-ologies against A5/1 and E0. 1