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Chaotic‐Maps‐Based Hash Function and Its Application
Yanzhang Pan,Minglu Jin,Junrong Gu 한국어정보학회 2007 한국어정보학 Vol.9 No.1
A new hash algorithm with private key is proposed based on chaotic‐mapping, by reshaping a piece‐wise linear chaotic mapping. This algorithm based on the cipher block chain mode makes the iteration initial point as the private key, encrypts arbitrary length plaintext data to 128 bits hash value. The proposed algorithm encrypts multi‐bit at one time, which reduces the chaotic iterating times and improves the encryption speed. Through theoretical analysis and simulation results, the proposed hash function could satisfy the requirements of unidirectionality, initial value and key sensitivity, anti‐collision and real time, which could be applied to the identity authentication conveniently, safely and efficiently.