From c7031b2d5cfa6a67253282a69bb3b7f6550f9d5d Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordu.net>
Date: Sat, 11 Feb 2017 00:24:20 +0100
Subject: Be more careful with secret keys.

---
 tools/create-key.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/create-key.sh b/tools/create-key.sh
index 9d29c86..e54b56b 100755
--- a/tools/create-key.sh
+++ b/tools/create-key.sh
@@ -1,4 +1,10 @@
 #!/bin/sh
 
+set -o errexit
+set -o nounset
+
+[ -f $1-private.pem ] && { echo "$0: $1-private.pem exists, exiting"; exit 1; }
+touch $1-private.pem
+chmod 600 $1-private.pem
 openssl ecparam -name prime256v1 -genkey -noout -out $1-private.pem
 openssl ec -in $1-private.pem -pubout -out $1.pem
-- 
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