Side channel analysis of SPECK

Author:

Joseph Mabin12,Sekar Gautham34,Balasubramanian R.52

Affiliation:

1. Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India. E-mail: mebinjp@gmail.com

2. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India

3. Madras Fintech Services Pvt. Ltd, Chennai, India. E-mail: gautham.sekar@gmail.com

4. Birla Institute of Technology & Science, Pilani, India

5. The Institute of Mathematical Sciences, Taramani, Chennai, India. E-mail: balu@imsc.res.in

Abstract

SPECK is a family of lightweight block ciphers developed by Beaulieu et al. of the US National Security Agency (NSA) for the Internet of Things (IoT). It is an ARX-based design with a Feistel-like structure which supports keys of size ranging from 64 bits to 256 bits. SPECK has been standardised by ISO/IEC for radio frequency identification (RFID) devices. It has drawn the attention of many cryptanalysts and several cryptanalysis results have been published. In this paper, carry flag attacks on the full SPECK ciphers are presented. Depending on the key size and block size, the complexities of our attacks, to nearly ensure success, vary from 2 59 time and 2 14 data to 2 227 time and 2 62 data.

Publisher

IOS Press

Subject

Computer Networks and Communications,Hardware and Architecture,Safety, Risk, Reliability and Quality,Software

Reference39 articles.

1. F. Abed, E. List, S. Lucks and J. Wenzel, Differential Cryptanalysis of Round-Reduced SIMON and SPECK, in: International Workshop on Fast Software Encryption, Proceedings of FSE 2014, LNCS, Vol. 8540, 2015, pp. 525–545.

2. R. Beaulieu, D. Shors, J. Smith, S. Treatman-Clark, B. Weeks and L. Wingers, Notes on the design and analysis of SIMON and SPECK, in: Cryptology ePrint Archive, Report 2017/560, 2017, available at: http://eprint.iacr.org/2017/560.

3. R. Beaulieu, D. Shors, J. Smith, S. Treatman-Clark, B. Weeks and L. Wingers, SIMON and SPECK: Block Ciphers for the Internet of Things, in: NIST Lightweight Cryptography Workshop, 2015, available at: https://csrc.nist.gov/csrc/media/events/lightweight-cryptography-workshop-2015/documents/papers/session1-shors-paper.pdf.

4. R. Beaulieu, D. Shors, J. Smith, S. Treatman-Clark, B. Weeks and L. Wingers, The SIMON and SPECK Block Ciphers on AVR 8-Bit Microcontrollers, in: International Workshop on Lightweight Cryptography for Security and Privacy, Proceedings of LightSec 2014, LNCS, Vol. 8898, 2015, pp. 3–20.

5. R. Beaulieu, D. Shors, J. Smith, S. Treatman-Clark, B. Weeks and L. Wingers, The SIMON and SPECK Families of Lightweight Block Ciphers, in: Cryptology ePrint Archive, Report 2013/404, 2013, available at: http://eprint.iacr.org/2013/404.

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