From 28acb8012f3471262aa999071fbadde5ebe7edf9 Mon Sep 17 00:00:00 2001
From: Wither OrNot
Date: Fri, 4 Apr 2025 03:43:27 -0400
Subject: add /siid option

---
 LibTSforge/SPP/ProductKey.cs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'LibTSforge/SPP')

diff --git a/LibTSforge/SPP/ProductKey.cs b/LibTSforge/SPP/ProductKey.cs
index ce454d8..ae48893 100644
--- a/LibTSforge/SPP/ProductKey.cs
+++ b/LibTSforge/SPP/ProductKey.cs
@@ -249,10 +249,8 @@ namespace LibTSforge.SPP
         {
             if (version == PSVersion.Win7)
             {
-                Random rnd = new Random(Group * 1000000000 + Serial);
-                byte[] data = new byte[8];
-                rnd.NextBytes(data);
-                return data;
+                ulong shortauth = ((ulong)Group << 41) | ((ulong)Security << 31) | ((ulong)Serial << 1) | (Upgrade ? (ulong)1 : 0);
+                return BitConverter.GetBytes(shortauth);
             }
 
             int serialHigh = Serial / 1000000;
-- 
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