From c08dcb064ce9589d263f048685cdf47b08fc3eca Mon Sep 17 00:00:00 2001
From: lwvmobile <lwvmobile@gmail.com>
Date: Sat, 21 Oct 2023 13:38:28 -0400
Subject: [PATCH] P25p1 - Zero LSD if Enc Voice; #166

---
 src/p25p1_ldu1.c | 7 +++++++
 src/p25p1_ldu2.c | 7 ++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/p25p1_ldu1.c b/src/p25p1_ldu1.c
index e35b2d6..00285ab 100644
--- a/src/p25p1_ldu1.c
+++ b/src/p25p1_ldu1.c
@@ -453,6 +453,13 @@ processLDU1 (dsd_opts* opts, dsd_state* state)
     fprintf (stderr, "%s\n", KNRM);
   }
 
+  //NOTE: LSD is also encrypted if voice is encrypted, so let's just zip it for now
+  if (state->payload_algid != 0x80)
+  {
+    lsd_hex1 = 0;
+    lsd_hex2 = 0;
+  }
+
   //WIP: LSD FEC
   lsd1_okay = p25p1_lsd_fec (lowspeeddata+0);
   lsd2_okay = p25p1_lsd_fec (lowspeeddata+16);
diff --git a/src/p25p1_ldu2.c b/src/p25p1_ldu2.c
index 86dcaf3..ee30940 100644
--- a/src/p25p1_ldu2.c
+++ b/src/p25p1_ldu2.c
@@ -497,7 +497,12 @@ processLDU2 (dsd_opts * opts, dsd_state * state)
       fprintf (stderr, "%s", KNRM);
   }
 
-  
+  //NOTE: LSD is also encrypted if voice is encrypted, so let's just zip it for now
+  if (state->payload_algid != 0x80)
+  {
+    lsd_hex1 = 0;
+    lsd_hex2 = 0;
+  }
 
   if (opts->payload == 1)
   {