78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
#include "crypto_lib.hpp"
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#include <iostream>
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#include <vector>
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#include <string>
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using namespace std;
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int main() {
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try {
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cout << "=== Asymmetric Cryptography Example ===" << endl;
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string generate_new_keys;
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cout << "Generate new keys? (y/n): ";
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cin >> generate_new_keys;
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string message;
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vector<uint8_t> encrypted;
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if (generate_new_keys == "y") {
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// 1. Generate keys
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cout << "1. Generating key pair...\n\n";
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auto keys = CryptoLib::generate_keys(2048);
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auto& private_key = keys.first;
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auto& public_key = keys.second;
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// 2. Save keys to files
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cout << "2. Saving keys to files...\n\n";
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CryptoLib::save_private_key(*private_key, "private_key.pem");
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CryptoLib::save_public_key(*public_key, "public_key.pem");
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message = "Hello, this is a secret message!";
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} else {
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cout << "Enter message to decrypt (if exists): ";
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cin.ignore();
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getline(cin, message);
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if (!message.empty()) {
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encrypted = CryptoLib::base64_to_bytes(message);
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} else {
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message = "Hello, this is a secret message!";
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}
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}
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// 3. Load keys from files
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cout << "3. Loading keys from files...\n\n";
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auto loaded_private_key = CryptoLib::load_private_key("private_key.pem");
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auto loaded_public_key = CryptoLib::load_public_key("public_key.pem");
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// 4. Convert public key to string and back
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cout << "4. Loaded keys:\n";
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string private_key_str = CryptoLib::private_key_to_string(*loaded_private_key);
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string public_key_str = CryptoLib::public_key_to_string(*loaded_public_key);
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cout << "Private key string as: " << private_key_str.substr(0, 50) << "...\n";
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cout << "Public key string as: " << public_key_str.substr(0, 50) << "...\n\n";
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cout << "5. Convert public key from string...\n\n";
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auto restored_public_key = CryptoLib::public_key_from_string(public_key_str);
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if (encrypted.empty()) {
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// 6. Encrypt data
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cout << "6. Testing ecnryption..." << endl;
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cout << "Original message: " << message << endl;
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encrypted = CryptoLib::encrypt(*loaded_public_key, message);
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cout << "Encrypted (base64): " << CryptoLib::bytes_to_base64(encrypted) << endl;
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cout << "Encrypted data size: " << encrypted.size() << " bytes\n\n";
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}
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// 7. Decrypt data
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string decrypted_message = CryptoLib::decrypt(*loaded_private_key, encrypted);
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cout << "7. Decrypted message: " << decrypted_message << "\n";
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} catch (const exception& e) {
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cerr << "Error: " << e.what() << endl;
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return 1;
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}
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return 0;
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}
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