Stream Cipher Based on Latin Cubes

Edon80 is a hardware binary additive synchronous stream cipher submitted to the last phase of the eSTREAM project. The period of keystream of Edon80 is relatively short and there is a key recovery attach on it. In this paper, by modifying the IVSetup mode and the Keystream mode of Edon80, and by introducing a new e-transformation based on Latin cubes, we design a binary additive synchronous stream cipher named CHAINS80 with a much larger keystream period and it can resist the key recovery attack given by Johansson and Hell.