C++数据加密技术，学习传智播客数据加密心得

#include <iostream> #include"CSocketProtool.h" #include"HW_DEC_AND_ENC.h" #include"商品.h" #include"商品二.h" #include"EnAndDesCode.h" #include"EncAndDecProtocol.h" #define _CRT_SECURE_NO_WARNINGS using namespace std; //数据传送 int SckSendAndRec_1(CSocketProtocol* cp,unsigned char* input, int inp_len, unsigned char* output, int* out_len) { int result; result = cp->socketclient_init_1();/*数据初始化*/ if (result != 0) { goto END; }/*初始化未成功*/ /*客户端发送数据 ，接口接收数据*/ result = cp->socketclient_send_1(input, inp_len); if (result != 0) { goto END; } result = cp->socketclient_recv_1(output, out_len); if (result != 0) { goto END; } END: result = cp->socketclient_distory(); return 0; } //数据加密解密 int SckEnAndDec(CSocketProtocol* cp, EncAndDecProtocol* ed, unsigned char* plainText, int Plain_length, unsigned char* crytext, int* crytext_length) { int result; result = cp->socketclient_init_1(); /*定义加密电文存储的空间*/ unsigned char data[4096]; int store_length = 0; if (result!=0) { cout << "数据初始化不成功" << endl; return result; } /*数据加密*/ result = ed->EnCodeData(plainText, Plain_length, data, &store_length); if (result!=0) { cout << "数据加密失败" << endl; return result; } /*数据加密后进行数据发送*/ result = cp->socketclient_send_1(data, store_length); if (result != 0) { cout << "数据发送失败" << endl; return result; } /*数据接收方进行数据接收*/ result = cp->socketclient_recv_1(crytext, &store_length); if (result!=0) { cout << "数据方接收数据失败" << endl; return result; } /*数据解密*/ result = ed->DeCodeData(crytext, store_length, plainText, crytext_length); if (result != 0) { cout << "数据解密失败" << endl; return result; } /*一套流程完整走完*/ result = cp->socketclient_distory(); return 0; } int main(void) { int result = 0;/*判断程序是否成功执行的标志*/ /*学习这部分如何进行 抽象类可以没有对象 但是可以有 抽象类的指针 基类指针指向子类对象*/ CSocketProtocol *CI_1 = new CSckFactoryImp1; unsigned char* Input_Info = new unsigned char[50]; int InputDataLength = 30; unsigned char* Output_Info = new unsigned char[InputDataLength]; int OutputDataLength; for (int i = 0; i < 50; i++) { *(Input_Info + i) = i+1; }/*存放1->50的数据*/ result = SckSendAndRec_1(CI_1, Input_Info, InputDataLength, Output_Info, &OutputDataLength); if (result != 0) { cout << "数据传输过程存在错误，数据传输失败" << endl; return result; } /*数据加密解密发送接收*/ EncAndDecProtocol *ed = new HWEncAndDec; result = SckEnAndDec(CI_1, ed, Input_Info, InputDataLength, Output_Info, &OutputDataLength); if (result!=0) { cout << "数据不能作为密文发送" << endl; return result; } delete[] Input_Info; delete[] Output_Info; return result; }