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The Simon and Speck block ciphers on AVR 8-bit microcontrollers. (English) Zbl 1382.94059

Eisenbarth, Thomas (ed.) et al., Lightweight cryptography for security and privacy. Third international workshop, LightSec 2014, Istanbul, Turkey, September 1–2, 2014. Revised selected papers. Cham: Springer (ISBN 978-3-319-16362-8/pbk; 978-3-319-16363-5/ebook). Lecture Notes in Computer Science 8898, 3-20 (2015).
Summary: The last several years have witnessed a surge of activity in lightweight cryptographic design. Many lightweight block ciphers have been proposed, targeted mostly at hardware applications. Typically software performance has not been a priority, and consequently software performance for many of these algorithms is unexceptional. Simon and Speck are lightweight block cipher families developed by the U.S. National Security Agency for high performance in constrained hardware and software environments. In this paper, we discuss software performance and demonstrate how to achieve high performance implementations of Simon and Speck on the AVR family of 8-bit microcontrollers. Both ciphers compare favorably to other lightweight block ciphers on this platform. Indeed, Speck seems to have better overall performance than any existing block cipher – lightweight or not.
For the entire collection see [Zbl 1318.94001].

MSC:

94A60 Cryptography
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