Research Article
Automatic Search for the Linear (Hull) Characteristics of ARX Ciphers: Applied to SPECK, SPARX, Chaskey, and CHAM-64
Figure 2
(a) and (b) represent the linear layer of SPARX-64. (c) and (d) represent the linear layer of SPARX-128.
(a) |
(b) |
(c) |
(d) |