设计一个加密系统里面含Diffie-Hellman代码 DES_Tool2（直接生成密文和加密明文） DSATool.v1.3软件和一个das源代码-Inside the design of a cryptographic system with Diffie-Hellman code DES_Tool2 (generated direct explicit ciphertext and encryption) DSATool.v1.3 software source code and a da