diff --git a/tools/doimage/secure/csk_priv_pem1.key b/tools/doimage/secure/csk_priv_pem1.key
new file mode 100644
index 0000000..91d1aeb
--- /dev/null
+++ b/tools/doimage/secure/csk_priv_pem1.key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----