Improved power analysis on unrolled architecture and its application to PRINCE block cipher

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7 Citations (Scopus)

Abstract

This paper explores the feasibility of power analysis attacks against low-latency block ciphers implemented with unrolled architectures capable of encryption in a single clock cycle. Recently, low-latency block ciphers are attracting much attention due to the increasing requirement of real-time cryptosystems. Unrolled architectures have been expected to be somewhat resistant against side-channel attacks compared to typical loop architectures because of no memory (i.e. register) element storing intermediate results in a synchronous manner. In this paper, we present a systematic method for selecting Points-of-Interest for power analysis on unrolled architectures as well as calculating dynamic power consumption at a target function. Then, we apply the proposed method to PRINCE, which is known as one of the most efficient low latency ciphers, and evaluate its validity with an experiment using a set of unrolled PRINCE processors implemented on an FPGA. Finally, a countermeasure against such analysis is discussed.

Original languageEnglish
Title of host publicationLightweight Cryptography for Security and Privacy - 4th International Workshop, LightSec 2015, Revised Selected Papers
EditorsTim Güneysu, Gregor Leander, Amir Moradi
PublisherSpringer-Verlag
Pages148-163
Number of pages16
ISBN (Print)9783319290775
DOIs
Publication statusPublished - 2016 Jan 1
Event4th International Workshop on Lightweight Cryptography for Security and Privacy, LightSec 2015 - Bochum, Germany
Duration: 2015 Sep 102015 Sep 11

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9542
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other4th International Workshop on Lightweight Cryptography for Security and Privacy, LightSec 2015
CountryGermany
CityBochum
Period15/9/1015/9/11

Keywords

  • Cryptographic hardware
  • Low latency cipher
  • Power analysis
  • Side-channel attacks
  • Unrolled architecture

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Yli-Mäyry, V., Homma, N., & Aoki, T. (2016). Improved power analysis on unrolled architecture and its application to PRINCE block cipher. In T. Güneysu, G. Leander, & A. Moradi (Eds.), Lightweight Cryptography for Security and Privacy - 4th International Workshop, LightSec 2015, Revised Selected Papers (pp. 148-163). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 9542). Springer-Verlag. https://doi.org/10.1007/978-3-319-29078-2_9