Open AccessOne way Hash function construction based on the extended chaotic maps switch
Author(s) -
Xiaomin Wang,
Jiashu Zhang,
Wenfang Zhang
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2737
Subject(s) - chaotic , hash function , computer science , function (biology) , collision resistance , theoretical computer science , sensitivity (control systems) , algorithm , cryptography , double hashing , cryptographic hash function , artificial intelligence , electronic engineering , computer security , evolutionary biology , engineering , biology
How to design an efficient one-way Hash function is always the hot point in mode rn cryptography researches. In this paper, a Hash function construction method b ased on extended chaotic maps switch is proposed. The extended chaotic model is first built to generate various kinds of chaotic signals at different parts of t he original signals according to the switching schemes, and then chaotic paramet ers of one-way Hash function is modulated by the linear-transformed signals. The advantages of irreversibility, resistance to imitations and sensitivity to init ial values,etc., are also discussed. Simulation results show that this chaotic H ash function based on extended chaotic maps switch has good one-wayweak collis ion property, better security than the chaotic Hash function based on single cha otic map, and it can be realized easily.