Design and implementation of hash function scheme targeted at short message processing

The Hash function targeted at the short message processing is proposed in this paper. Various randomized components are designed based on the introduced thoughts of randomization, and the chaotic encryption algorithm of the variable parameters is applied to improve the avalanche performance of the Hash function. At last, the LWE problem is introduced into the operation, so to accomplish the design of the lattice-based collision resistant Hash function. Meanwhile, relative experiments are carried out, which prove the satisfactory randomization, collision resistant, and diffusion performances of the Hash function proposed in this paper.