FIDO2 supports a notion of "user verification" where the user is
required to demonstrate their identity to the token before particular
operations (e.g. signing). Typically this is done by authenticating
themselves using a PIN that has been set on the token.
This adds support for generating and using user verified keys where
the verification happens via PIN (other options might be added in the
future, but none are in common use now). Practically, this adds
another key generation option "verify-required" that yields a key that
requires a PIN before each authentication.
feedback markus@ and Pedro Martelletto; ok markus@
OpenBSD-Commit-ID: 57fd461e4366f87c47502c5614ec08573e6d6a15
from Markus:
use "principals" instead of principal, as allowed_signers lines may list
multiple.
When the signing key is a certificate, emit only principals that match
the certificate principal list.
NB. the command -Y name changes: "find-principal" => "find-principals"
ok markus@
OpenBSD-Commit-ID: ab575946ff9a55624cd4e811bfd338bf3b1d0faf
This is populated during signature verification with additional fields
that are present in and covered by the signature. At the moment, it is
only used to record security key-specific options, especially the flags
field.
with and ok markus@
OpenBSD-Commit-ID: 338a1f0e04904008836130bedb9ece4faafd4e49
including the new U2F signatures.
Don't use sshsk_ecdsa_sign() directly, instead make it reachable via
sshkey_sign() like all other signature operations. This means that
we need to add a provider argument to sshkey_sign(), so most of this
change is mechanically adding that.
Suggested by / ok markus@
OpenBSD-Commit-ID: d5193a03fcfa895085d91b2b83d984a9fde76c8c
fuzzing
rename to make more consistent with philosophically-similar auth
options parsing API.
OpenBSD-Commit-ID: 0c67600ef04187f98e2912ca57b60c22a8025b7c
for OpenSSH
This adds a simple manual signature scheme to OpenSSH.
Signatures can be made and verified using ssh-keygen -Y sign|verify
Signatures embed the key used to make them. At verification time, this
is matched via principal name against an authorized_keys-like list
of allowed signers.
Mostly by Sebastian Kinne w/ some tweaks by me
ok markus@
OpenBSD-Commit-ID: 2ab568e7114c933346616392579d72be65a4b8fb
djm@openbsd.org