diff --git a/openotp_sign/openotp_sign.crt b/openotp_sign/openotp_sign.crt
new file mode 100644
index 0000000..75048c2
--- /dev/null
+++ b/openotp_sign/openotp_sign.crt
@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----