Presentations and Papers

The Simon and Speck Information Paper

Background and statement on ISO/IEC SC27 WG2 lightweight cryptography standard from 15 Aug 2018.


The Simon and Speck Families of Lightweight Block Ciphers

Original paper from June 2013 including algorithm descriptions and test vectors.


The Simon and Speck Block Ciphers on AVR 8-bit Microcontrollers

Presented at LightSec in September 2014.

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Implementation and Performance of the Simon and Speck Lightweight Block Ciphers on ASICs

Unpublished conference submission from Spring-Summer 2014.


The Simon and Speck Lightweight Block Ciphers

Presented at the Design Automation Conference in June 2015.

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Simon and Speck: Ciphers for Constrained Platforms

Presented at the RAIN RFID open meeting on June 24, 2015.


Simon and Speck: Block Ciphers for the Internet of Things

Presented at the NIST Lightweight Cryptography Workshop in July 2015.

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Algorithms to Support the Evolution of Information Assurance Needs

This document provides background and insight into NSA's intentions for the Simon & Speck lightweight block ciphers, and answers frequently asked questions about these designs.


Notes on the Design and Analysis of Simon and Speck

This document was prepared by the designers of Simon and Speck in order to address questions regarding the design rationale and analysis of the algorithms.