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Działa szyfrowanie, generowanie klucza i zapisywanie klucza do pliku KEY

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This commit is contained in:
yanczi 2025-10-28 00:07:00 +01:00
parent b80d983bc7
commit 8745ed2e19
7 changed files with 154 additions and 3 deletions
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72
EncryptionManager.cpp
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@ -1,18 +1,21 @@
#include "EncryptionManager.h"
EncryptionManager::EncryptionManager()
:keyReady(false)
{
if (sodium_init() < 0) {
throw std::runtime_error("libsodium init failed");
}
keyReady = false;
}
std::vector<char> EncryptionManager::encrypt(const std::vector<char>& raw)
{
randombytes_buf(key.data(), key.size());
randombytes_buf(nonce.data(), nonce.size());
std::vector<char> crypt(raw.size());
// Generowanie kluczy
generateKeys();
if (crypto_stream_chacha20_ietf_xor_ic(
reinterpret_cast<unsigned char*>(crypt.data()),
@ -25,4 +28,67 @@ std::vector<char> EncryptionManager::encrypt(const std::vector<char>& raw)
}
return crypt;
}
void EncryptionManager::generateKeys()
{
if (keyReady) return;
std::cout << "GENEROWANIE KLUCZA" << std::endl;
//randombytes_buf(key.data(), key.size());
crypto_stream_chacha20_ietf_keygen(key.data());
randombytes_buf(nonce.data(), nonce.size());
keyReady = true;
}
void EncryptionManager::saveKey(const std::string& path)
{
std::cout << "ZAPISYWANIE KLUCZA" << std::endl;
const int sig = SIGNATURE_KEY_FILE;
const short ver = VERSION;
// Wygeneruj time stamp
std::time_t now = std::time(nullptr);
const uint32_t time = static_cast<uint32_t>(now);
// Przekonwertuj array z kluczem i nonce na vector char
std::vector<char> keyVec(reinterpret_cast<const char*>(key.data()), reinterpret_cast<const char*>(key.data()) + key.size());
std::vector<char> nonceVec(reinterpret_cast<const char*>(nonce.data()), reinterpret_cast<const char*>(nonce.data()) + nonce.size());
// Wygeneruj crc kluczy
const uint16_t crcKey = crc16(keyVec);
const uint16_t crcNonce = crc16(nonceVec);
// Zapisz ten œmietnik do pliku KEY
std::ofstream file(path + ".key", std::ios::binary);
if (!file) { std::cout << "Dupa nie zapisa³o" << std::endl; }
file.write(reinterpret_cast<const char*>(&sig), sizeof(sig));
file.write(reinterpret_cast<const char*>(&ver), sizeof(ver));
file.write(reinterpret_cast<const char*>(&time), sizeof(time));
file.write(reinterpret_cast<const char*>(key.data()), key.size());
file.write(reinterpret_cast<const char*>(&crcKey), sizeof(crcKey));
file.write(reinterpret_cast<const char*>(nonce.data()), nonce.size());
file.write(reinterpret_cast<const char*>(&crcNonce), sizeof(crcNonce));
if (!file.good()) { std::cout << "Dupa nie zapisa³o" << std::endl; }
file.close();
}
// Wczytaj klucz
void EncryptionManager::loadKey(const std::string& path)
{
}
// Wygeneruj CRC16
uint16_t EncryptionManager::crc16(const std::vector<char>& buffer)
{
boost::crc_16_type crc;
crc.process_bytes(buffer.data(), buffer.size());
return crc.checksum();
}