Deszyfracja została skończona i działa poprawnie

.gitignore

@@ -368,3 +368,7 @@ test2/
 *.pak
 expak/
 x64/
+test.*
+pest2.*
+*.hh
+*.key

CreateCargo.h

@@ -49,6 +49,11 @@
 
 #define ALL_FILE            ".*"           // Wszystkie pliki
 
+struct MethodFlags
+{
+	bool compressing = false;
+	bool encryption = false;
+};
 
 class CreateCargo {
 public:
@@ -65,6 +70,8 @@ private:
 	const std::string extension;
 	const uint8_t version;
 
+	MethodFlags methodFlags;
+
 
 	std::string catalogPath;
 	std::string tempFile;

EncryptionManager.cpp

@@ -21,9 +21,8 @@ std::vector<char> EncryptionManager::encrypt(const std::vector<char>& raw)
         reinterpret_cast<unsigned char*>(crypt.data()),
         reinterpret_cast<const unsigned char*>(raw.data()),
         static_cast<unsigned long long>(raw.size()),
-        nonce.data(),
-        0,
-        key.data()) != 0) {
+        nonce.data(), 0, key.data()) != 0)
+    {
         throw std::runtime_error("crypto_stream_chacha20_ietf_xor_ic failed");
     }
 
@@ -52,11 +51,17 @@ void EncryptionManager::saveKey(const std::string& path)
 
     // Wygeneruj time stamp
     std::time_t now = std::time(nullptr);
-    const uint32_t time = static_cast<uint32_t>(now);
+    const int time = static_cast<int>(now);
 
     // Wygeneruj crc kluczy
-    const uint64_t crcKey = XXH64(key.data(), key.size(), 0);
-    const uint64_t crcNonce = XXH64(nonce.data(), nonce.size(), 0);
+    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());
+
+    const uint64_t crcKey = XXH64(keyVec.data(), keyVec.size(), VERSION);
+    const uint64_t crcNonce = XXH64(nonceVec.data(), nonceVec.size(), VERSION);
 
     // Zapisz ten œmietnik do pliku KEY
     std::ofstream file(path + ".key", std::ios::binary);
@@ -65,16 +70,16 @@ void EncryptionManager::saveKey(const std::string& path)
     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*>(keyVec.data()), keyVec.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*>(nonceVec.data()), nonceVec.size());
     file.write(reinterpret_cast<const char*>(&crcNonce), sizeof(crcNonce));
 
     if (!file.good()) { std::cout << "Dupa nie zapisa³o" << std::endl; }
 
     file.close();
 
-    saveCppHeadFile(path);
+    //saveCppHeadFile(path);
 }
 
 // Generowanie pliku nag³ówkowego CPP z kluczem i nonce
@@ -90,7 +95,7 @@ void EncryptionManager::saveCppHeadFile(const std::string& path)
         "// Ci¹g nonce\n"
         "const std::array<unsigned char, crypto_stream_chacha20_ietf_NONCEBYTES> nonce{" + toHex(nonceVec) + "}; ";
 
-    std::ofstream file(path + ".hpp");
+    std::ofstream file(path + ".hh");
     file << headerText;
     file.close();
 }
@@ -124,5 +129,63 @@ std::string EncryptionManager::toHex(const std::vector<unsigned char>& data)
 // Wczytaj klucz
 void EncryptionManager::loadKey(const std::string& path)
 {
+    std::cout << "ODCZYT KLUCZA" << std::endl;
+    std::ifstream file(path + ".key", std::ios::binary);
 
+    int sig;
+    short ver;
+    int time;
+
+    // Wczytaj
+    file.read(reinterpret_cast<char*>(&sig), sizeof(sig));
+    file.read(reinterpret_cast<char*>(&ver), sizeof(ver));
+
+    // SprawdŸ czy plik klucza jest poprawny
+    if (sig != SIGNATURE_KEY_FILE || ver != VERSION)
+    {
+        throw std::runtime_error("Invalid key file!");
+    }
+
+    std::vector<char> keyVec(key.size());
+    std::vector<char> nonceVec(nonce.size());
+    uint64_t crcKey;
+    uint64_t crcNonce;
+
+    file.read(reinterpret_cast<char*>(&time), sizeof(time));
+    file.read(keyVec.data(), keyVec.size());
+    file.read(reinterpret_cast<char*>(&crcKey), sizeof(crcKey));
+    file.read(nonceVec.data(), nonceVec.size());
+    file.read(reinterpret_cast<char*>(&crcNonce), sizeof(crcNonce));
+
+    std::cout << crcKey << " - " << XXH64(keyVec.data(), keyVec.size(), VERSION) << std::endl;
+
+    // Sprawd٠integralnoϾ klucza
+    if (XXH64(keyVec.data(), keyVec.size(), VERSION) != crcKey
+        || XXH64(nonceVec.data(), nonceVec.size(), VERSION) != crcNonce)
+    {
+        throw std::runtime_error("Key integrity error!");
+    }
+
+    file.close();
+    
+    // Przekonwertuj vector na array
+    key = toArray<crypto_stream_chacha20_ietf_KEYBYTES>(keyVec);
+    nonce = toArray<crypto_stream_chacha20_ietf_NONCEBYTES>(nonceVec);
+}
+
+// Deszyfracja
+std::vector<char> EncryptionManager::decrypt(const std::vector<char>& crypt)
+{
+    std::vector<char> raw(crypt.size());
+
+    if (crypto_stream_chacha20_ietf_xor(
+        reinterpret_cast<unsigned char*>(raw.data()),
+        reinterpret_cast<const unsigned char*>(crypt.data()),
+        static_cast<unsigned long long>(crypt.size()),
+        nonce.data(), key.data()) != 0)
+    {
+        throw std::runtime_error("Data decryption error!");
+    }
+    
+    return raw;
 }

EncryptionManager.h

@@ -21,7 +21,7 @@ public:
 	~EncryptionManager() = default;
 
 	std::vector<char> encrypt(const std::vector<char>&);
-	//std::vector<char> decrypt(const std::vector<char>&);
+	std::vector<char> decrypt(const std::vector<char>&);
 
 	void saveKey(const std::string&);
 	void loadKey(const std::string&);
@@ -34,4 +34,15 @@ private:
 	void generateKeys();
 	std::string toHex(const std::vector<unsigned char>&);
 	void saveCppHeadFile(const std::string&);
+
+	template <size_t N>
+	std::array<unsigned char, N> toArray(const std::vector<char>& vec) {
+		if (vec.size() < N) {
+			throw std::runtime_error("Too small vector to convert to array");
+		}
+
+		std::array<unsigned char, N> arr{};
+		std::memcpy(arr.data(), vec.data(), N);
+		return arr;
+	}
 };

ExtractCargo.cpp

@@ -59,6 +59,10 @@ bool ExtractCargo::Extract(const std::string& cFile)
 		return false;
 	}
 
+	// Wczytaj klucz deszyfruj¹cy
+	std::filesystem::path kdir = cargoFileName.stem();
+	eman.loadKey(kdir.string());
+
 	//Otwieranie kontenera
 	cargoFile.open(cargoFileName, std::ios::binary);
 
@@ -170,7 +174,7 @@ void ExtractCargo::ExtractingFilesFromCargo()
 
 		cargoFile.read(buffor.data(), fh.size);
 
-		std::vector<char> rawBuffor = fh.isZip ? cm.decompress(buffor) : buffor;
+		std::vector<char> rawBuffor = fh.isZip ? cm.decompress(buffor) : eman.decrypt(buffor);
 
 		if (!HashValid(rawBuffor, fh.crc))
 		{

ExtractCargo.h

@@ -32,6 +32,7 @@
 
 #include "DataStruct.h"
 #include "CompressingManager.h"
+#include "EncryptionManager.h"
 
 class ExtractCargo {
 public:
@@ -56,6 +57,7 @@ private:
 
 	std::ifstream cargoFile;
 
+	EncryptionManager eman;
 
 
 	// Sprawdzenie poprawności archiwum

test.hpp

@@ -1,7 +0,0 @@
-// Plik wygenerowany przy wykorzystaniu exPAK
-
-// Klucz deszyfruj¹cy
-const std::array<unsigned char, crypto_stream_chacha20_ietf_KEYBYTES> key{'0xBB', '0xEF', '0x33', '0xD0', '0x9F', '0xB2', '0xAB', '0x54', '0xD3', '0xF2', '0xDA', '0xF7', '0x51', '0x5B', '0x67', '0x8C', '0xA4', '0xAA', '0xF1', '0xC0', '0x14', '0x81', '0x8C', '0x23', '0x86', '0x06', '0xBC', '0x1E', '0xE6', '0x49', '0xF1', '0xE0'};
-
-// Ci¹g nonce
-const std::array<unsigned char, crypto_stream_chacha20_ietf_NONCEBYTES> nonce{'0x5E', '0x8F', '0x8B', '0x17', '0x16', '0xE3', '0xDB', '0xE0', '0xBF', '0xF0', '0x25', '0xDA'};