Part of twisted.conch.error View Source View In Hierarchy
Raised by public key checkers when they receive public key credentials that don't contain a signature at all, but are valid in every other way. (e.g. the public key matches one in the user's authorized_keys file).
Protocol code (eg
which attempts to log in using
credentials should be prepared to handle a failure of this type by telling
the user to re-authenticate using the same key and to include a signature
with the new attempt.