RFC: PROTOCOL.authrec, a structured authentication record from sshd

[Avinash Duduskar]

On Thu, 30 Jul 2026, Ethan Heilman wrote:

> my cmd can't see what other methods passed or failed for sshd

The satisfied steps and their keys are already in sshd when
AuthorizedKeysCommand runs, so the passed half needs no new
retention, only delivery: that is the AKC record, which follows
the marshaller. Failed attempts are not accumulated and stay
deferred as in 4.1.

Avi