A scheme for constructing one-way Hash function based on hyperchaos induced by time delay and key-stream function iteration is proposed in this paper. In this scheme, the plaintext and secret key are used as the initial value in two hyperchaotic Chen systems; these values are evolved in a hyperchaotic way during a predefined period. The results of the evolution are quantified and iterated using key-stream function iteration to confuse and diffuse the plaintext and secret key. The cipher block chaining mode is used to generate a 128 bits Hash value for a plaintext of arbitrary length. Theoretical analysis and simulation results indicate that the proposed algorithm has satisfactory performance, such as value compression function, irreversibility, initial value sensitivity, forgery resistance and collision resistance.
- One-way Hash function
- hyperchaos induced by time delay
- key-stream function
- cipher block chaining