Introduction - If you have any usage issues, please Google them yourself
In 1996, E. Schaefer proposed a simplified DES encryption algorithm, namely, S-DES encryption algorithm. S-DES is a symmetric block cipher of the simplified model, not to application, it is very specifically to understand how to implement block ciphers in the proliferation and disrupted, revealing the design of the basic mode of block cipher algorithms and framework for learning in the password has an important significance. Write a software to achieve S-DES encryption and decryption Packet