diff --git a/utils/decode_auth.go b/utils/decode_auth.go
new file mode 100644
index 0000000..13ff4c5
--- /dev/null
+++ b/utils/decode_auth.go
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"encoding/base64"
+	"fmt"
+	"ntlm/messages"
+)
+
+func main() {
+	var data string
+	fmt.Println("Paste the base64 encoded Authenticate message:")
+	fmt.Scanf("%s", &data)
+	authenticateData, _ := base64.StdEncoding.DecodeString(data)
+	a, _ := messages.ParseAuthenticateMessage(authenticateData, 2)
+	fmt.Printf(a.String())
+}