lulz.c

#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <openssl/rsa.h>
#include <openssl/pem.h>
#include <openssl/fernet.h>
#include <openssl/sha.h>
#include <openssl/rand.h>
#include <openssl/evp.h>
#include <openssl/bio.h>
#include <openssl/buffer.h>
#include <openssl/md5.h>
#include <openssl/err.h>
#include <zip.h>
using namespace std;
// Function to display help menu with examples
void display_help() {
    cout << "Usage: secure_tool [option]\n"
         << "Options:\n"
         << "  -h, --help           Display this help menu\n"
         << "  -u, --upload FILE    Upload a file for processing\n"
         << "Examples:\n"
         << "  secure_tool -u input.txt\n";
}
// Generate or load RSA keys
pair<RSA*, RSA*> generate_rsa_keypair(int key_size = 4096) {
    RSA *private_key = RSA_generate_key(key_size, RSA_F4, nullptr, nullptr);
    RSA *public_key = RSAPublicKey_dup(private_key);
    return make_pair(private_key, public_key);
}
// Save RSA key to a file
void save_rsa_key(RSA *key, const char *filename, const char *passphrase = nullptr) {
    BIO *bio = BIO_new_file(filename, "wb");
    if (!bio) {
        throw runtime_error("Error opening file for writing: " + string(filename));
    }
    unique_ptr<EVP_PKEY, decltype(&EVP_PKEY_free)> evp_key(EVP_PKEY_new(), EVP_PKEY_free);
    EVP_PKEY_set1_RSA(evp_key.get(), key);
    if (passphrase) {
        if (!PEM_write_bio_PKCS8PrivateKey(bio, evp_key.get(), EVP_aes_256_cbc(), nullptr, 0, nullptr, passphrase)) {
            throw runtime_error("Error writing private key to file");
        }
    } else {
        if (!PEM_write_bio_RSAPrivateKey(bio, key, nullptr, nullptr, 0, nullptr, nullptr)) {
            throw runtime_error("Error writing private key to file");
        }
    }
}
// Load RSA key from a file
RSA* load_rsa_key(const char *filename, const char *passphrase = nullptr) {
    BIO *bio = BIO_new_file(filename, "rb");
    if (!bio) {
        throw runtime_error("Error opening file for reading: " + string(filename));
    }
    RSA *key = nullptr;
    unique_ptr<EVP_PKEY, decltype(&EVP_PKEY_free)> evp_key(PEM_read_bio_RSAPrivateKey(bio, nullptr, nullptr, const_cast<char*>(passphrase)), EVP_PKEY_free);

    if (evp_key) {
        key = EVP_PKEY_get1_RSA(evp_key.get());
    }
    BIO_free(bio);
    return key;
}
// Encrypt a file using Fernet symmetric encryption
void encrypt_file(const char *file_path, const char *output_path, const string &fernet_key) {
    FILE *file = fopen(file_path, "rb");
    FILE *output_file = fopen(output_path, "wb");
    if (!file || !output_file) {
        throw runtime_error("Error opening files for encryption");
    }
    unique_ptr<FILE, decltype(&fclose)> file_guard(file, fclose);
    unique_ptr<FILE, decltype(&fclose)> output_file_guard(output_file, fclose);
    FERNET_CTX *ctx = FERNET_init(fernet_key.c_str());
    if (!ctx) {
        throw runtime_error("Error initializing Fernet context");
    }
    FERNET_encrypt_file(ctx, file, output_file);
    FERNET_cleanup(ctx);
}
// Decrypt a file using Fernet symmetric encryption
void decrypt_file(const char *file_path, const char *output_path, const string &fernet_key) {
    FILE *file = fopen(file_path, "rb");
    FILE *output_file = fopen(output_path, "wb");
    if (!file || !output_file) {
        throw runtime_error("Error opening files for decryption");
    }
    unique_ptr<FILE, decltype(&fclose)> file_guard(file, fclose);
    unique_ptr<FILE, decltype(&fclose)> output_file_guard(output_file, fclose);
    FERNET_CTX *ctx = FERNET_init(fernet_key.c_str());
    if (!ctx) {
        throw runtime_error("Error initializing Fernet context");
    }
    FERNET_decrypt_file(ctx, file, output_file);
    FERNET_cleanup(ctx);
}
// Sign a file with the RSA private key
void sign_file(const char *file_path, RSA *private_key) {
    FILE *file = fopen(file_path, "rb");
    if (!file) {
        throw runtime_error("Error opening file for signing");
    }
    unique_ptr<FILE, decltype(&fclose)> file_guard(file, fclose);
    fseek(file, 0, SEEK_END);
    long file_size = ftell(file```cpp
);
    fseek(file, 0, SEEK_SET);
    unique_ptr<unsigned char[]> data(new unsigned char[file_size]);
    fread(data.get(), 1, file_size, file);
    fclose(file);
    unique_ptr<unsigned char[]> signature(new unsigned char[RSA_size(private_key)]);
    unsigned int signature_len;
    if (RSA_sign(NID_sha256, data.get(), file_size, signature.get(), &signature_len, private_key) != 1) {
        throw runtime_error("Error signing file");
    }
    FILE *signature_file = fopen((string(file_path) + ".sig").c_str(), "wb");
    if (!signature_file) {
        throw runtime_error("Error opening file for signature");
    }
    unique_ptr<FILE, decltype(&fclose)> signature_file_guard(signature_file, fclose);
    fwrite(signature.get(), 1, signature_len, signature_file);
}
// Verify the digital signature of a file
bool verify_signature(const char *file_path, RSA *public_key) {
    FILE *file = fopen(file_path, "rb");
    if (!file) {
        throw runtime_error("Error opening file for signature verification");
    }
    unique_ptr<FILE, decltype(&fclose)> file_guard(file, fclose);
    fseek(file, 0, SEEK_END);
    long file_size = ftell(file);
    fseek(file, 0, SEEK_SET);
    unique_ptr<unsigned char[]> data(new unsigned char[file_size]);
    fread(data.get(), 1, file_size, file);
    fclose(file);
    FILE *signature_file = fopen((string(file_path) + ".sig").c_str(), "rb");
    if (!signature_file) {
        throw runtime_error("Error opening signature file");
    }
    unique_ptr<FILE, decltype(&fclose)> signature_file_guard(signature_file, fclose);
    fseek(signature_file, 0, SEEK_END);
    long signature_size = ftell(signature_file);
    fseek(signature_file, 0, SEEK_SET);
    unique_ptr<unsigned char[]> signature(new unsigned char[signature_size]);
    fread(signature.get(), 1, signature_size, signature_file);
    int result = RSA_verify(NID_sha256, data.get(), file_size, signature.get(), signature_size, public_key);
    return result == 1;
}
// Calculate the hash of a file
string calculate_hash(const char *file_path) {
    FILE *file = fopen(file_path, "rb");
    if (!file) {
        throw runtime_error("Error opening file for hash calculation");
    }
    unique_ptr<FILE, decltype(&fclose)> file_guard(file, fclose);
    SHA256_CTX sha256_ctx;
    SHA256_Init(&sha256_ctx);
    unsigned char buffer[65536];
    size_t bytes_read;
    while ((bytes_read = fread(buffer, 1, sizeof(buffer), file)) > 0) {
        SHA256_Update(&sha256_ctx, buffer, bytes_read);
    }
    unsigned char hash[SHA256_DIGEST_LENGTH];
    SHA256_Final(hash, &sha256_ctx);
    stringstream ss;
    for (int i = 0; i < SHA256_DIGEST_LENGTH; i++) {
        ss << hex << setw(2) << setfill('0') << static_cast<int>(hash[i]);
    }
    return ss.str();
}
// Encrypt a Fernet key with RSA public key
string encrypt_fernet_key(const string &fernet_key, RSA *public_key) {
    size_t encrypted_key_len = RSA_size(public_key);
    unique_ptr<unsigned char[]> encrypted_key(new unsigned char[encrypted_key_len]);
    int result = RSA_public_encrypt(fernet_key.size(), reinterpret_cast<const unsigned char *>(fernet_key.c_str()), encrypted_key.get(), public_key, RSA_PKCS1_OAEP_PADDING);
    if (result <= 0) {
        throw runtime_error("Error encrypting Fernet key");
    }
    return string(reinterpret_cast<const char *>(encrypted_key.get()), result);
}
// Decrypt a Fernet key with RSA private key
string decrypt_fernet_key(const string &encrypted_key, RSA *private_key) {
    size_t decrypted_key_len = RSA_size(private_key);
    unique_ptr<unsigned char[]> decrypted_key(new unsigned char[decrypted_key_len]);
    int result = RSA_private_decrypt(encrypted_key.size(), reinterpret_cast<const unsigned char *>(encrypted_key.c_str()), decrypted_key.get(), private_key, RSA_PKCS1_OAEP_PADDING);
    if (result <= 0) {
        throw runtime_error("Error decrypting Fernet key");
    }
    return string(reinterpret_cast<const char *>(decrypted_key.get()), result);
}
// Encrypt multiple files into a single archive
void encrypt_multiple_files(const vector<string> &file_paths, const char *output_archive, const string &fernet_key, const char *payload = nullptr) {
    zip_t *archive = zip_open(output_archive, ZIP_CREATE | ZIP_TRUNCATE, nullptr);
    if (!archive) {
        throw runtime_error("Error creating archive");
    }
    unique_ptr<zip_t, decltype(&zip_close)> archive_guard(archive, zip_close);
    for (const auto &file_path : file_paths) {
        zip_source_t *source = zip_source_file(archive, file_path.c_str(), 0, 0);
        if (!source) {
            throw runtime_error("Error creating source for file: " + string(file_path));
        }
        zip_file_add(archive, file_path.c_str(), source, ZIP_FL_OVERWRITE);
    }
    if (payload) {
        zip_source_t *payload_source = zip_source_buffer(archive, payload, strlen(payload), 0);
        if (!payload_source) {
            throw runtime_error("Error creating source for payload");
        }
        zip_file_add(archive, "payload.txt", payload_source, ZIP_FL_OVERWRITE);
    }
    zip_close(archive);
    encrypt_file(output_archive, (string(output_archive) + ".enc").c_str(), fernet_key.c_str());
    remove(output_archive);
}
// Decrypt a single archive containing multiple files
void decrypt_multiple_files(const char *archive_path, const char *output_dir, const string &fernet_key) {
    decrypt_file(archive_path, (string(archive_path) + ".dec").c_str(), fernet_key.c_str());
    zip_t *archive = zip_open((string(archive_path) + ".dec").c_str(), 0, nullptr);
    if (!archive) {
        throw runtime_error("Error opening decrypted archive");
    }
    unique_ptr<zip_t, decltype(&zip_close)> archive_guard(archive, zip_close);
    for (zip_int64_t i = 0; i < zip_get_num_entries(archive, 0); ++i) {
        zip_stat_t stat;
        zip_stat_index(archive, i, 0, &stat);
        zip_file_t *file = zip_fopen_index(archive, i, 0);
        if (!file) {
            throw runtime_error("Error opening file in decrypted archive: " + string(stat.name));
        }
        string output_path = string(output_dir) + "/" + stat.name;
        FILE *output_file = fopen(output_path.c_str(), "wb");
        if (!output_file) {
            throw runtime_error("Error opening output file: " + output_path);
        }
        unique_ptr<FILE, decltype(&fclose)> output_file_guard(output_file, fclose);
        char buffer[65536];
        zip_fread```cpp
(file, buffer, sizeof(buffer));
        fwrite(buffer, 1, zip_fread(file, buffer, sizeof(buffer)), output_file);
    }
}
// Function to bind an EXE to media
void bind_exe_to_media(const char *media_file, const char *exe_file, const char *output_media_file) {
    FILE *media = fopen(media_file, "rb");
    FILE *exe = fopen(exe_file, "rb");
    FILE *output_media = fopen(output_media_file, "wb");
    if (!media || !exe || !output_media) {
        throw runtime_error("Error opening files for binding");
    }
    unique_ptr<FILE, decltype(&fclose)> media_guard(media, fclose);
    unique_ptr<FILE, decltype(&fclose)> exe_guard(exe, fclose);
    unique_ptr<FILE, decltype(&fclose)> output_media_guard(output_media, fclose);
    fseek(media, 0, SEEK_END);
    long media_size = ftell(media);
    fseek(media, 0, SEEK_SET);
    fseek(exe, 0, SEEK_END);
    long exe_size = ftell(exe);
    fseek(exe, 0, SEEK_SET);
    unique_ptr<unsigned char[]> media_data(new unsigned char[media_size]);
    fread(media_data.get(), 1, media_size, media);
    unique_ptr<unsigned char[]> exe_data(new unsigned char[exe_size]);
    fread(exe_data.get(), 1, exe_size, exe);
    fwrite(media_data.get(), 1, media_size, output_media);
    fwrite(exe_data.get(), 1, exe_size, output_media);
}
// Function to extract the EXE from bound media
void extract_exe_from_media(const char *bound_media_file, const char *output_exe_file) {
    FILE *media = fopen(bound_media_file, "rb");
    FILE *output_exe = fopen(output_exe_file, "wb");
    if (!media || !output_exe) {
        throw runtime_error("Error opening files for extraction");
    }
    unique_ptr<FILE, decltype(&fclose)> media_guard(media, fclose);
    unique_ptr<FILE, decltype(&fclose)> output_exe_guard(output_exe, fclose);
    fseek(media, 0, SEEK_END);
    long media_size = ftell(media);
    fseek(media, 0, SEEK_SET);
    unique_ptr<unsigned char[]> media_data(new unsigned char[media_size]);
    fread(media_data.get(), 1, media_size, media);
    const char *exe_magic_header = "MZ";
    const char *exe_start = strstr(reinterpret_cast<const char *>(media_data.get()), exe_magic_header);
    if (exe_start) {
        fwrite(exe_start, 1, media_size - (exe_start - reinterpret_cast<const char *>(media_data.get())), output_exe);
    } else {
        cout << "No EXE data found in the bound media." << endl;
    }
}
// Main function
int main(int argc, char *argv[]) {
    try {
        if (argc != 3) {
            cerr << "Invalid number of arguments." << endl;
            display_help();
            return 1;
        }
        string option(argv[1]);
        if (option == "-h" || option == "--help") {
            display_help();
            return 0;
        } else if (option == "-u" || option == "--upload") {
            string file_path(argv[2]);
            // Perform file upload processing
            // ...
        } else {
            cerr << "Invalid option: " << option << endl;
            display_help();
            return 1;
        }
    } catch (const exception &e) {
        cerr << "An error occurred: " << e.what() << endl;
        return 1;
    }
    return 0;
}