Encrypting krb_rced messages in GSSAPI tokens

Nicolas.Williams@ubsw.com Nicolas.Williams at ubsw.com
Mon Apr 29 17:32:00 EDT 2002


Doh. You can't allocate the keys in the auth context constructor. Yeah, you either have to split up mk_req or put in a callback interface.

Nico
--  

> -----Original Message-----
> From: Williams, Nicolas 
> Sent: Monday, April 29, 2002 5:24 PM
> To: 'Sam Hartman'
> Cc: krbdev at mit.edu
> Subject: RE: Encrypting krb_rced messages in GSSAPI tokens
> 
> 
> 
> Yeah, you could make the auth context constructor generate 
> the subkey. Then the app could use that key before calling 
> mk_req_extended(). It's just as well, and probably easier 
> than the callback. Easier should win, right?
> 
> Nico
> --  
> 
> > -----Original Message-----
> > From: Sam Hartman [mailto:hartmans at mit.edu]
> > Sent: Monday, April 29, 2002 5:20 PM
> > To: Williams, Nicolas
> > Cc: krbdev at mit.edu
> > Subject: Re: Encrypting krb_rced messages in GSSAPI tokens
> > 
> > 
> > >>>>> "Nicolas" == Nicolas Williams 
> > <Nicolas.Williams at ubsw.com> writes:
> > 
> >     Nicolas> Suggestion: change mk_req_extended() (or make 
> a new API)
> >     Nicolas> that takes a callback function pointer and 
> make it so the
> >     Nicolas> callback function gets called with the ticket key and
> >     Nicolas> subkey blocks; the callback function should return data
> >     Nicolas> for use in the checksum field.
> > 
> > That's certainly one way to handle it.  I was actually thinking of
> > splitting out the key setup into a different function.  I 
> think I may
> > like the callback method better.
> > 
> > 
> 

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