[krbdev.mit.edu #1278] No prompter interface for krb5_get_init_creds_keytab

[Ken Hornstein]

>Why do you think you need this?  The idea of getting initial creds
>from a keytab is that a daemon or other automated task can act as a
>kerberos client without user interaction.  If you require user
>interaction, why aren't you just using a password?

I need to use a host key in a keytab (hence keytab) as a user's
long-term key with a hardware token (user interaction).  This is to
implement Matt Crawford's hw-auth draft.  Okay, so technically I don't
need a keytab interface, but there's no way to give the API a raw key
and provide a prompter interface, and that's the real deficiency.

--Ken