From f3f1663999acc56fe0cc6406a5351aac506d7913 Mon Sep 17 00:00:00 2001
From: Simon <simon@gb7fr.org.uk>
Date: Sun, 13 Feb 2022 19:41:05 +0000
Subject: [PATCH] use separate hash for previous packet detection

---
 bridge_master.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/bridge_master.py b/bridge_master.py
index 498cf33..3a25516 100644
--- a/bridge_master.py
+++ b/bridge_master.py
@@ -1470,7 +1470,13 @@ class routerOBP(OPENBRIDGE):
 
         #pkt_crc = Crc32.calc(_data[4:53])
         #_pkt_crc = Crc32.calc(dmrpkt)
-        _pkt_crc = _hash
+        
+        #Use blake2b hash
+        _h = blake2b(digest_size=16)
+        _h.update(_data)
+        _pkt_crc = _h.digest()
+        
+        #_pkt_crc = _hash
 
         # Match UNIT data, SMS/GPS, and send it to the dst_id if it is in SUB_MAP
         if _call_type == 'unit' and (_dtype_vseq == 6 or _dtype_vseq == 7 or _dtype_vseq == 8 or ((_stream_id not in self.STATUS) and _dtype_vseq == 3)):