Chaotic-Maps-Based Hash Function and its Application to Identity Identifier Certification
基于混沌映射的Hash函数及其在身份标识认证中的应用

An algorithm used for user identity identifier (UID) encryption, secret storage, and authentication etc. was proposed. Firstly, a piecewise-linear chaotic map and its composite function were presented, and their statistic characteristics were also analyzed. Secondly, a Hash function based on chaotic map was constructed so as to encrypt UID. Based on the first function, some other Hash functions were then constructed to generate certification in which the UID was hidden. The experiment results show that the proposed algorithms are exact, security, efficient, and practical for information encryption and identity certification.