Initial commit

- cpisign.py
   - initial work and logic by Wei-Yu
   - converted to use python cryptography (stable API) instead of
      OpenSSL by Zack)
- Basic lint, license tests

Change-Id: I05e9c0fbce339fc3bd187120174dcfde0299852f
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 0000000..fe17096
--- /dev/null
+++ b/.reuse/dep5
@@ -0,0 +1,5 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: VERSION .gitreview README.md
+Copyright: 2021 Open Networking Foundation
+License: Apache-2.0