+./overonion-make-key --make_INSECURE_key "$d/key"
+cp "$d/key" "$d/key2"
+./overonion e "$d/key" < "$test_data" > "$d/encrypted"
+{ cat "$test_data"; echo tamper; } | ./overonion e "$d/key2" > "$d/encrypted2"
+if ./overonion d "$d/key" < "$d/encrypted2" > /dev/null;then
+ echo "Failed to detect tampering" >&2
+ exit 1
+fi
+rm -r "$d"