Apparently the so-called "schism" in #OpenPGP is over. Context: In 2022, an email to the IETF OpenPGP working group list, titled "a new draft overlapping the WG draft", noted that one implementation (GnuPG) seemed to reject the draft that is now RFC 9580: https://mailarchive.ietf.org/arch/msg/openpgp/PWp3ZcZ_qnDNLhuT-zR7gA2ddeg/ Today, the author of #GnuPG signaled on the IETF list that he intends to implement support for RFC 9580 and draft-ietf-openpgp-nist-bp-comp: https://mailarchive.ietf.org/arch/msg/openpgp/B7ytSFXTVW84UfFd4cCW-DXhpAA/ As I see it, this is great news for OpenPGP!