International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Since languages become the tool for communication, the desire and need to transmit secret messages from one person to another begin. The most important classic cryptographic scheme is public-key cryptosystem its safety relies on the high complexity of the underlying mathematical problems, for instance the factorization of large numbers. But with the development of the Quantum Computation (QC), especially the shor's algorithm for factoring big numbers, the systems once seemingly unbroken in practice will be aggressed easily. Now in the information community, the safety of transmission of secret information is becoming more and more concerned.