The WG Stream Cipher
Yassir Nawaz, Guang Gong · 2005
Abstract. In this paper we propose a new synchronous stream cipher, called WG ci-pher. The cipher is based on WG (Welch-Gong) transformations. The WG cipher has been designed to produce keystream with guaranteed randomness properties, i.e., bal-ance, long period, large and exact linear complexity, 3-level additive autocorrelation, and ideal 2-level multiplicative autocorrelation. It is resistant to Time/Memory/Data tradeoff attacks, algebraic attacks and correlation attacks. The cipher can be imple-mented with a small amount of hardware. 1