字符串AES加解密

字符串AES加解密

看效果

添加文件

将AES加密文件添加到工程中去，文件下载链接如下：
https://download.youkuaiyun.com/download/qq_43638158/87451200

上代码

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "qaesencryption.h"
#include <QMessageBox>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void on_pushButton_encyption_clicked();//加密

    void on_pushButton_decrypt_clicked();//解密

private:
    Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H

mainwidow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

/****************************
 * 函数作用：AES加密
 * 输入参数：
 * 返回参数：
****************************/
void MainWindow::on_pushButton_encyption_clicked()
{
    ui->plainTextEdit_ciphertext->clear();//密文文本先清空
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::ECB , QAESEncryption::PKCS7);

    QByteArray clearText = (ui->plainTextEdit_clearText->toPlainText()).toLocal8Bit();//获取明文
    QByteArray key = (ui->lineEdit_key->text()).toLocal8Bit();//获取密钥
    QByteArray iv = (ui->lineEdit_iv->text()).toLocal8Bit();//获取偏移量
    QByteArray encodedString = encryption.encode(clearText, key,iv);//加密
    ui->plainTextEdit_ciphertext->appendPlainText(encodedString.toHex());

}
/****************************
 * 函数作用：AES解密
 * 输入参数：
 * 返回参数：
****************************/
void MainWindow::on_pushButton_decrypt_clicked()
{
    ui->plainTextEdit_clearText->clear();//明文文本先清空
    QAESEncryption encryption(QAESEncryption::AES_128, QAESEncryption::ECB , QAESEncryption::PKCS7 );
    QByteArray input = (ui->plainTextEdit_ciphertext->toPlainText()).toLocal8Bit();//获取密文
    if(input.length()%16 != 0 || input.length()<32)//密文长度不正确时
    {
        QMessageBox::information(this, "解密失败", "请检查密文 长度 是否正确");
        return;
    }
    else//密文长度正确
    {
        QByteArray decodeString = encryption.decode(input.fromHex(input),(ui->lineEdit_key->text()).toLocal8Bit(),(ui->lineEdit_iv->text()).toLocal8Bit());//解密
        QByteArray decoded = QAESEncryption::RemovePadding(decodeString,QAESEncryption::PKCS7);
        QString decoded1 = decoded;
        ui->plainTextEdit_clearText->appendPlainText(decoded1);
    }
}

借鉴该链接：https://blog.youkuaiyun.com/baidu_35259515/article/details/115294472