Is your feature request related to a problem? Please describe.
The Kerberos protocol has some weaknesses because it relies on potentially weak passwords to protect tickets. RFC 6113 provides a mechanism to protect those secrets as well as adds additional functionality for generalized pre-auth mechanisms.

https://tools.ietf.org/html/rfc6113