diff --git a/cadviewer/cadviewer.crt b/cadviewer/cadviewer.crt
new file mode 100644
index 0000000..a5d3b0a
--- /dev/null
+++ b/cadviewer/cadviewer.crt
@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----