Construction of the best diffusing transform based on shift and XOR
Cao Yun · Journal of Sichuan University · 2012
The diffusion structure has important impact on the rate of the diffusion and safety intensity for block cipher.Usingthe linear transform which has branch numbers as large as possible as the diffusion structure is a main method to devise blockcipher.A few reversible generalized word transforms is searched by efficient algorithm,and propose a algorithm,which constructed the best diffusing Transform based on shift and XOR in GF(2~(32)),especially,adapt to hardware,and applied to design of block, stream and HASH cipher,largely.