SimonΒΆ

The Simon block cipher [BSS+15] has reference configurations suitable for many sizes. Even if the implementation could actually work in the most general scenario, the suggested size is any multiple of 4 bits, i.e. \(t = 2\tau,\ \tau \in \mathbb{N}\).

\[\begin{split}\begin{array}{l} \texttt{text\_size} = 2t, \quad t \in \mathbb{N} \\ \texttt{key\_size} = 2kt, \quad k \in \{2, 3, 4\} \\ \texttt{keyrot} = (3, 1) \\ \texttt{rot} = (1, 8, 2) \end{array}\end{split}\]