Re: [Emu] EAP-GPSK: Feedback Solicited

["Charles Clancy" <clancy at cs.umd.edu>]

Jouni,

Good catch -- 0x00 should be 16 octets long and MK should be generated
from GKDF-16 instead.

-- 
t. charles clancy, ph.d.  <>  tcc at umd.edu  <>  www.cs.umd.edu/~clancy

On Fri, April 6, 2007 2:25 pm, Jouni Malinen wrote:
> On Fri, Apr 06, 2007 at 09:07:11AM +0200, Hannes Tschofenig wrote:
>
>> http://www.tschofenig.com/svn/draft-clancy-emu-eap-gpsk/draft-ietf-emu-eap-gpsk-05.txt
>> ChangeLog:
>> - replaced Hash with MAC
>
> If I understood the change correctly, GKDF-X(Y, Z) is now using
> AES-128-CMAC if ciphersuite #1 is used. This would require 16-octet key
> (Y), but the values passed into GKDF in 6.1.3 are of 1 octet (0x00) and
> 32 octets (MK). How is this supposed to work?
>
> --
> Jouni Malinen                                            PGP id EFC895FA
>
> _______________________________________________
> Emu mailing list
> Emu at ietf.org
> https://www1.ietf.org/mailman/listinfo/emu
>


_______________________________________________
Emu mailing list
Emu at ietf.org
https://www1.ietf.org/mailman/listinfo/emu