Grain-128a: a new version of Grain-128 with optional authentication

Martin Ågren, Martin Hell, Thomas Johansson, Willi Meier

Research output: Contribution to journalArticlepeer-review

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A new version of the stream cipher Grain-128 is proposed. The new version, Grain-128a, is strengthened against all known attacks and observations on the original Grain-128, and has built-in support for optional authentication. The changes are modest, keeping the basic structure of Grain-128. This gives a high confidence in Grain-128a and allows for easy updating of existing implementations.
Original languageEnglish
Pages (from-to)48-59
JournalInternational Journal of Wireless and Mobile Computing
Issue number1
Publication statusPublished - 2011

Bibliographical note

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering


  • cryptographic primitive
  • cryptography.
  • security
  • hardware attractive
  • lightweight
  • message authentication
  • MAC
  • stream cipher
  • Grain-128
  • Grain-128a


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