diff --git a/EncryptionManager.cpp b/EncryptionManager.cpp
index 415d54a..98cb0da 100644
--- a/EncryptionManager.cpp
+++ b/EncryptionManager.cpp
@@ -80,20 +80,49 @@ void EncryptionManager::saveKey(const std::string& path)
 // Generowanie pliku nagłówkowego CPP z kluczem i nonce
 void EncryptionManager::saveCppHeadFile(const std::string& path)
 {
+    std::vector<unsigned char> keyVec(key.begin(), key.end());
+    std::vector<unsigned char> nonceVec(nonce.begin(), nonce.end());
+
     const std::string headerText =
         "// Plik wygenerowany przy wykorzystaniu exPAK\n\n"
         "// Klucz deszyfrujący\n"
-        "const std::array<unsigned char, crypto_stream_chacha20_ietf_KEYBYTES> key{};\n\n"
+        "const std::array<unsigned char, crypto_stream_chacha20_ietf_KEYBYTES> key{" + toHex(keyVec) + "};\n\n"
         "// Ciąg nonce\n"
-        "const std::array<unsigned char, crypto_stream_chacha20_ietf_NONCEBYTES> nonce{};";
+        "const std::array<unsigned char, crypto_stream_chacha20_ietf_NONCEBYTES> nonce{" + toHex(nonceVec) + "}; ";
 
     std::ofstream file(path + ".hpp");
     file << headerText;
     file.close();
 }
 
+std::string EncryptionManager::toHex(const std::vector<unsigned char>& data)
+{
+    std::string bytes;
+    int sk = data.size();
+    int skp = 1;
+
+    for (const auto& b : data)
+    {
+        std::stringstream ss;
+        ss << "0x" << std::hex << std::uppercase << std::setw(2) << std::setfill('0')
+            << static_cast<int>(b);
+
+        bytes += "'";
+        bytes += ss.str();
+        bytes += "'";
+
+        if (skp < sk)
+        {
+            bytes += ", ";
+            skp++;
+        }
+    }
+
+    return bytes;
+}
+
 // Wczytaj klucz
 void EncryptionManager::loadKey(const std::string& path)
 {
-
+    
 }
\ No newline at end of file
diff --git a/EncryptionManager.h b/EncryptionManager.h
index aa4e7ab..fad298d 100644
--- a/EncryptionManager.h
+++ b/EncryptionManager.h
@@ -8,6 +8,10 @@
 #include <ctime>
 #include <iostream>
 #include <xxhash.h>
+#include <sstream>
+#include <iomanip>
+#include <algorithm>
+
 #include "DataStruct.h"
 
 class EncryptionManager
@@ -28,5 +32,6 @@ private:
 	bool keyReady;
 
 	void generateKeys();
+	std::string toHex(const std::vector<unsigned char>&);
 	void saveCppHeadFile(const std::string&);
 };
\ No newline at end of file
diff --git a/test.hpp b/test.hpp
index 0751f98..0ac6d06 100644
--- a/test.hpp
+++ b/test.hpp
@@ -1,5 +1,7 @@
 // Plik wygenerowany przy wykorzystaniu exPAK
 
-const std::array<unsigned char, crypto_stream_chacha20_ietf_KEYBYTES> key{};
+// Klucz deszyfrujący
+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'};
 
-const std::array<unsigned char, crypto_stream_chacha20_ietf_NONCEBYTES> nonce{};
\ No newline at end of file
+// Ciąg nonce
+const std::array<unsigned char, crypto_stream_chacha20_ietf_NONCEBYTES> nonce{'0x5E', '0x8F', '0x8B', '0x17', '0x16', '0xE3', '0xDB', '0xE0', '0xBF', '0xF0', '0x25', '0xDA'}; 
\ No newline at end of file
diff --git a/test.key b/test.key
index ca8b832..552c171 100644
Binary files a/test.key and b/test.key differ