Improving the security and efficiency of block ciphers based on LS-designs

Abstract

LS-designs are a family of bitslice ciphers aiming at efficient masked implementations against side-channel analysis. This paper discusses their security against invariant subspace attacks, and describes an alternative family of eXtended LS-designs (XLS-designs), that enables additional options to prevent such attacks. LSand XLS-designs provide a large… (More)
DOI: 10.1007/s10623-016-0193-8

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