A scheme of constructing one-way hash function based on Chen-type hyper-chaotic system and key-stream was proposed. In this scheme

the plain-text and the secret key were used as the initial values of two hyper-chaotic systems

these values were evolved in a hyper-chaotic way during a predefined period. The results of the evolution were quantified and iterated using key-stream iteration to confuse and diffuse the plain-text with the secret key. Then

the cipher block chaining mode was used to generate the 128bit hash value for the plain-text with arbitrary length. Theoretical analysis and experimental results indicate that the proposed algorithm can satisfy the required security performance

such as data compression function

irreversibility

initial value sensitivity forgery resistance and collision resistance. Compared with some existing methods

the proposed scheme possesses better collision resistance performance.