程序示例精选
Qt RSA OpenSSL C++ Qt加密解密签字通信系统窗体源码
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前言

运行结果

文章目录

一、所需工具软件

二、使用步骤

代码如下（示例）：

//加密
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
   
   
    ui.setupUi(this);

    QObject::connect(ui.pushButton, SIGNAL(clicked()), this, SLOT(TestRSAEncode_sendout()));
    QObject::connect(ui.pushButton_2, SIGNAL(clicked()), this, SLOT(receiver()));

}


void MainWindow::TestRSASign()
{
   
   
    GenerateKeyEx();
    string strData = "orderId=01010500201502000004reqTime=20150205012727ext=20151120ext2=1";
    string strSigned;
    if (RSASignAction(strData, strSigned))
    {
   
   
        printf("加签成功\n");
        if (RSAVerifyAction(strData, strSigned))
        {
   
   
            printf("验签成功\n");
        }

    }
}


//发送
string strEncode;
string strDecode;
void MainWindow::TestRSAEncode_sendout()
{
   
   

    TestRSASign();

    //

    QString sendoutWord = QString("%1").arg(ui.textEdit->toPlainText());
    string strEncodeData = sendoutWord.toStdString();
    //string strEncodeData = "你好吗";


    GenerateKey();
    strEncode = EncodeByBioPublicKey(strEncodeData);
    strDecode = DecodeByBioPrivateKey(strEncode);

    printf("Old data:%s\n", strEncodeData.c_str());
    printf("Encode data:%s\n", strEncode.c_str());
    printf("Decode data:%s\n", strDecode.c_str());


    std::string encoded64 = base64_encode((const char*)(strEncode.c_str()), strEncode.length());
    std::cout << "base64encodedtxt:" << encoded64 << std::endl;


    QFile::remove("saveSendOut.txt");
    QFile filetxt(QString::fromStdString("saveSendOut_server.txt"));
    if (filetxt.open(QIODevice::WriteOnly))
    {
   
   
        QTextStream out(&filetxt);
        out.setCodec("UTF-8");
        out.flush();

    }
    filetxt.close();

    std::string dir555 = "saveSendOut_server.txt";
    std::string filePathCopy = "../client-exe/saveSendOut_server.txt";
    std::string filePathCopy2 = "../client-exe/private.pem";

    //std::string filePathCopy = "D:/saveSendOut.txt";
    QFile::remove(QString::fromStdString(filePathCopy));
    QFile::remove(QString::fromStdString(filePathCopy2));
    QFile::copy(QString::fromStdString(dir555), QString::fromStdString(filePathCopy));
    QFile::copy(QString::fromStdString("private.pem"), QString::fromStdString(filePathCopy2));
}


inline string readFile(const string& filename) 
{
   
   
    ifstream in(filename);
    istreambuf_iterator<char> begin(in), end;
    string content(begin, end);
    in.close();
    return content;
}
void MainWindow::receiver()
{
   
   
    //自接收
    string strDecode = DecodeByBioPrivateKey(strEncode);
    std::cout << "strDecode: " << strDecode << std::endl;
    ui.textEdit_2->setPlainText(title2);
    ui.textEdit_4->append(QString::fromStdString("自接收解密: ") + strDecode.c_str());

    //远程接收
    //QFile file(QString::fromStdString("saveSendOut.txt"));
    //if (file.open(QFile::ReadOnly | QFile::Text))
    //{
   
   
    //    QTextStream fs(&file);
    //    QString fileContent(fs.readAll());
    //    std::cout << "fileContent: " << fileContent.toStdString() << std::endl;

    //    string strDecodeRemotion = DecodeByBioPrivateKey(fileContent.toStdString());
    //    ui.textEdit_4->append(QString::fromStdString("远程接收解密: ") + strDecodeRemotion.c_str());
    //}
    //file.close();

    //远程接收

    string content = readFile("saveSendOut.txt");
    std::string decoded64 = base64_decode(content);
    string strDecodeRemotion = DecodeByBioPrivateKey(decoded64);
    ui.textEdit_4->append(QString::fromStdString("远程接收解密: ") + strDecodeRemotion.c_str());

}

运行结果

三、在线协助：

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1）远程安装运行环境，代码调试
2）Visual Studio, Qt, C++, Python编程语言入门指导
3）界面美化
4）软件制作