Proof-of-Possession Key Semantics for CBOR Web Tokens (CWTs) spec with a few improvements

A few local improvements have been made to the Proof-of-Possession Key Semantics for CBOR Web Tokens (CWTs) specification. Changes were:

• Changed “typically” to “often” when describing ways of performing proof of possession.
• Changed b64 to hex encoding in an example.
• Changed to using the RFC 8174 boilerplate instead of the RFC 2119 boilerplate.

Thanks to Samuel Erdtman for sharing the editing.

The specification is available at:

• https://tools.ietf.org/html/draft-ietf-ace-cwt-proof-of-possession-02

An HTML-formatted version is also available at:

• https://self-issued.info/docs/draft-ietf-ace-cwt-proof-of-possession-02.html