Extended integer tent maps and dynamic hash function

Abstract

Based on the analysis of uniform distribution property of the extended integer tent maps,a novel dynamic hash function with the output length of 160bit was constructed.In addition,the MD structure was improved so that the capacity of collision resistance of the middle iteration process of the hash function was enhanced without extending intermediate states.Preliminary security testing indicates that,this hash function has a high degree of security,and it can be realized easily with great rapidity.The algorithm of hash function is an ideal subsititution for traditional hash function.

Keywords

• hash function
• tent map
• diffusion
• dynamics