Abstract: Currently the final round of SHA-3(Secure Hash Algorithm-3) competition launched by NIST is under way.I}hc hash algorithm Keccak is one of the five candidates for the competition at the last round. This paper described the design and implementation of Keccak based on Matlab. Our program with a GUI(Graphic User Interface) can be used both in practical Keccak Hash value calculation and Keccak teaching or experiments.

Key words: Hash, SHA-3，Keccak, Sponge, Matlab