diff --git a/main.go b/main.go
index 06ab7d0..ab8c688 100644
--- a/main.go
+++ b/main.go
@@ -1 +1,25 @@
 package main
+
+import (
+	"fmt"
+
+	"git.send.nrw/sendnrw/sendnrwlib/netcrypto"
+	"git.send.nrw/sendnrw/sendnrwlib/netproto"
+)
+
+func main() {
+	key, _ := netcrypto.AES_GenerateKey()
+	fmt.Println(netcrypto.AES_KeyToString(key))
+	enc, _ := netcrypto.AES_Encrypt("test", key)
+	fmt.Println(enc)
+	dec, _ := netcrypto.AES_Decrypt(enc, key)
+	fmt.Println(dec)
+
+	a := netproto.GenerateNetworkProtocol(netproto.GenerateMainHeader(1, "A", netproto.GenerateEHT1("127.0.0.1", "", ""), netproto.GenerateEHT2("8.8.8.8", "", "80"), netproto.GenerateEHT3("JSON", "0", "0")), "")
+	fmt.Println(a)
+	b, _ := netproto.ToJSON(a)
+	fmt.Println(b)
+	netproto.FromJSON(b, &a)
+	fmt.Println(a)
+
+}
diff --git a/crypto/crypto.go b/netcrypto/netcrypto.go
similarity index 90%
rename from crypto/crypto.go
rename to netcrypto/netcrypto.go
index 94e2488..60f6aad 100644
--- a/crypto/crypto.go
+++ b/netcrypto/netcrypto.go
@@ -1,4 +1,4 @@
-package crypto
+package netcrypto
 
 import (
 	"crypto/aes"
@@ -27,6 +27,28 @@ func VerifyToken(token, storedHash string) bool {
 	return HashToken(token) == storedHash
 }
 
+// Generiert einen zufälligen 32-Byte-Schlüssel für AES-256
+func AES_GenerateKey() ([]byte, error) {
+	key := make([]byte, 32) // 32 Bytes für AES-256
+	_, err := rand.Read(key)
+	if err != nil {
+		return nil, fmt.Errorf("Fehler beim Generieren des Schlüssels: %v", err)
+	}
+	return key, nil
+}
+
+func AES_KeyToString(key []byte) string {
+	return base64.StdEncoding.EncodeToString(key)
+}
+
+func AES_StringToKey(base64Key string) ([]byte, error) {
+	key, err := base64.StdEncoding.DecodeString(base64Key)
+	if err != nil {
+		return nil, fmt.Errorf("Fehler beim Decodieren des Schlüssels: %v", err)
+	}
+	return key, nil
+}
+
 // Verschlüsselt einen JSON-String mit AES-GCM
 func AES_Encrypt(jsonString string, key []byte) (string, error) {
 	// Erstelle einen AES-Block
diff --git a/netproto/netproto.go b/netproto/netproto.go
index 4565aaa..f8ddfd2 100644
--- a/netproto/netproto.go
+++ b/netproto/netproto.go
@@ -2,6 +2,7 @@ package netproto
 
 import (
 	"encoding/base64"
+	"encoding/json"
 )
 
 type MainHeader struct {
@@ -121,6 +122,18 @@ func DecodeBase64(input string) (string, error) {
 	return string(d), nil
 }
 
+func ToJSON(input interface{}) (string, error) {
+	b, err := json.Marshal(input)
+	if err != nil {
+		return "", err
+	}
+	return string(b), nil
+}
+
+func FromJSON(input string, output interface{}) error {
+	return json.Unmarshal([]byte(input), output)
+}
+
 type ExtensionHeader struct {
 	Type uint8             `json:"type"`
 	Meta map[string]string `json:"meta"`