Design keyed Hash function based on couple chaotic system

Design keyed Hash function based on couple chaotic system

Blog Article

Analyzed the chaotic and cryptographic properties of a piecewise nonlinear map, a couple chaotic digital sys-tem Shovel was proposed based on perturbing which used the piecewise nonlinear, then a new approach to construct keyed Hash function was presented.The approach used the initial value of the couple chaotic system as the secret key and the coarse-graining trajectory as Hash values.Simulation results show that the chaotic keyed SUN E-400 Hash function based on the couple chaotic system has good one-way, weak collision property, better security and it can be realized easily.