基于空间伸缩结构的参数可控的混沌Hash函数

novel chaotic one-way hash function based on Spatial expansion construction with controllable-parameter was presented which combines with the advantage of both chaotic system and parallel hash function. In the proposal approach the hash model of message block is decided by chaotic dynamic parameter. The new method improves the security of hash function and avoids bringing down system performance at the same time. Theoretical and experimental results show that the proposed method has high performance in parallel model, nearly uniform distribution and desired diffusion and confusion properties.