Are you planning an informational document, or going through the IETF standardization process?
Also, the last published draft is two years old this week. Have there been changes since then to the spec? Are implementations generally interoperable?
But before I resuscitate PASETO, XChaCha20 needs an RFC. It's pending IRTF kick-off.
https://tools.ietf.org/html/draft-irtf-cfrg-xchacha-03
Are you planning an informational document, or going through the IETF standardization process?
Also, the last published draft is two years old this week. Have there been changes since then to the spec? Are implementations generally interoperable?