Abstract: Based on the detailed understanding of the working principle of Enigma machine,the authors try to achieve the luxuriant interface and the core of the encryption and decryption by using the hybrid programming of C++ and assembly language.Compared with other existing network products,this one features its comprehensive use of software and hardware knowledge,and in practice,it improves the understanding of Enigma machine to a new level.

Key words: Enigma machine, encryption, decryption