QT 5.15+VS2019 -64位 构建的openssl文件加解密工具

#include "mainwindow.h" #include "ui_mainwindow.h" #include "EncipherMent.h" #include <QApplication> #include <QFile> #include <fstream> #include "openssl/rsa.h" #define KEY_LENGTH 2048 // 密钥长度 #define PUB_KEY_FILE "pubkey.pem" // 公钥路径 #define PRI_KEY_FILE "prikey.pem" // 私钥路径 MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); QString strClear = "--------------------begin------------------------\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" "helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt helloworld public key encrypt, private key decrypt\n" " --------------9527------------------\n"; // std::string pub_key; // std::string pri_key; // //GenerateRSAKey(pub_key, pri_key); // qDebug() << pub_key.c_str(); // qDebug() << pri_key.c_str(); // std::string encrypt_text; // std::string decrypt_text; // // 公钥加密-私钥解密 // encrypt_text = RsaPubEncrypt(strClear.toStdString(), strPubKey.toStdString()); // qDebug() << encrypt_text.c_str(); // decrypt_text = RsaPriDecrypt(encrypt_text, strPriKey.toStdString()); // qDebug() << decrypt_text.c_str(); QString encryptedFilePath = "C:\\Users\\Administrator\\Desktop\\src\\asd.txt"; // 加密并将数据写入文件 encryptAndWriteToFile(strClear, encryptedFilePath); // 从文件中读取并解密数据 QString decryptedText = readAndDecryptFromFile(encryptedFilePath); qDebug() << "Decrypted text:" << decryptedText; } QString MainWindow::readKeyFromFile(const QString& filePath) { QString keyData; QFile keyFile(filePath); if (keyFile.open(QIODevice::ReadOnly | QIODevice::Text)) { QTextStream inStream(&keyFile); keyData = inStream.readAll(); keyFile.close(); } else { qDebug() << "Error: Unable to open key file for reading."; } return keyData; } MainWindow::~MainWindow() { delete ui; } void MainWindow::encryptAndWriteToFile(const QString& clearText, const QString& outputFilePath) { // 加密明文数据 std::string encryptText = RsaPubEncrypt(clearText.toStdString(), strPubKey.toStdString()); // 将加密后的数据写入文件 QFile outputFile(outputFilePath); if (outputFile.open(QIODevice::WriteOnly)) { QByteArray encryptedData = QByteArray::fromStdString(encryptText); outputFile.write(encryptedData); outputFile.close(); } else { qDebug() << "Error: Unable to open output file for writing."; } } QString MainWindow::readAndDecryptFromFile(const QString& encryptedFilePath) { // 从文件中读取加密后的数据 QString decryptedText; QFile encryptedFile(encryptedFilePath); if (encryptedFile.open(QIODevice::ReadOnly)) { QByteArray encryptedData = encryptedFile.readAll(); encryptedFile.close(); // 解密读取的加密后的数据 std::string decryptedTextStr = RsaPriDecrypt(encryptedData.toStdString(), strPriKey.toStdString()); decryptedText = QString::fromStdString(decryptedTextStr); } else { qDebug() << "Error: Unable to open encrypted file for reading."; } return decryptedText; } /* 制造密钥对：私钥和公钥 **/ void MainWindow::GenerateRSAKey(std::string & out_pub_key, std::string & out_pri_key) { size_t pri_len = 0; // 私钥长度 size_t pub_len = 0; // 公钥长度 char *pri_key = nullptr; // 私钥 char *pub_key = nullptr; // 公钥 // 生成密钥对 RSA *keypair = RSA_generate_key(KEY_LENGTH, RSA_3, NULL, NULL); BIO *pri = BIO_new(BIO_s_mem()); BIO *pub = BIO_new(BIO_s_mem()); // 生成私钥 PEM_write_bio_RSAPrivateKey(pri, keypair, NULL, NULL, 0, NULL, NULL); // 注意------生成第1种格式的公钥 //PEM_write_bio_RSAPublicKey(pub, keypair); // 注意------生成第2种格式的公钥（此处代码中使用这种） PEM_write_bio_RSA_PUBKEY(pub, keypair); // 获取长度 pri_len = BIO_pending(pri); pub_len = BIO_pending(pub); // 密钥对读取到字符串 pri_key = (char *)malloc(pri_len + 1); pub_key = (char *)malloc(pub_len + 1); BIO_read(pri, pri_key