An Account of the ISO/IEC Standardization of the Simon and Speck Block Cipher Families

Tomer Ashur, Atul Luykx

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

3 Citations (Scopus)
32 Downloads (Pure)


Simon and Speck are two block cipher families published in 2013 by the US National Security Agency (NSA). These block ciphers, targeting lightweight applications, were suggested in 2015 to be included in ISO/IEC 29192-2 Information technology—Security techniques—Lightweight cryptography—Part 2: Block ciphers. Following 3.5 years of deliberations within ISO/IEC JTC 1 they were rejected in April 2018. This chapter provides an account of the ISO/IEC standardization process for Simon and Speck.
Original languageEnglish
Title of host publicationSecurity of Ubiquitous Computing Systems
Subtitle of host publication(Selected Topics)
Number of pages16
ISBN (Electronic)978-3-030-10591-4
ISBN (Print)978-3-030-10590-7
Publication statusPublished - 1 Jan 2021


  • Cryptology
  • Cryptacus
  • Security
  • Ubiquitous Devices
  • Lightweight Cryptography
  • Symmetric Cryptography
  • Side-Channel Analysis
  • IoT Security
  • Ubiquitous Computing Systems
  • Open Access


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  • Contribution to Standardziation

    Ashur, Tomer (Recipient), 28 Nov 2019

    Prize: OtherCareer, activity or publication related prizes (lifetime, best paper, poster etc.)Scientific

  • Standardization

    Tomer Ashur


    3 items of Media coverage

    Press/Media: Public Engagement Activities

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