Welcome to the resource topic for 2014/028
Title:
Channel Equalization for Side Channel Attacks
Authors: Colin O'Flynn, Zhizhang (David) Chen
Abstract:This paper introduces the use of channel equalization as a method of simplifying side channel analysis attacks, by effectively collapsing all points in a power measurement trace into a single random variable. This uses a simple Finite Impulse Response (FIR) linear equalizer, which has been studied extensively in communications systems. In addition the estimation of a channel model is used in developing the Channel Estimation Analysis (CEA), which is a generic attack requiring similar assumptions to the Correlation Power Analysis (CPA) attack. Both channel equalization and the CEA attack are straight-forward to apply to real systems, and Python examples are provided. Results of attacking unprotected AES-128 and protected AES-256RSM on a microcontroller are provided.
ePrint: https://eprint.iacr.org/2014/028
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