Welcome to the resource topic for 2024/1188
Title:
Lightweight Dynamic Linear Components for Symmetric Cryptography
Authors: S. M. Dehnavi, M. R. Mirzaee Shamsabad
Abstract:In this paper, using the concept of equivalence of mappings we characterize all of the one-XOR matrices which are used in hardware applications and propose a family of lightweight linear mappings for software-oriented applications in symmetric cryptography. Then, we investigate interleaved linear mappings and based upon this study, we present generalized dynamic primitive LFSRs along with dynamic linear components for construction of diffusion layers.
From the mathematical viewpoint, this paper presents involutive sparse binary matrices as well as sparse binary matrices with sparse inverses. Another interesting result of our investigation is that, by our characterization of one-XOR matrices, the search space for finding a k such that x^n+x^k+1 is a primitive trinomial could be reduced.
ePrint: https://eprint.iacr.org/2024/1188
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