Hi Luke,

El 31/03/2011, a las 12:06, Luke Howard escribió:

>> I was wondering what are the exact implications of not protecting the 
>> information until the EAP authentication ends up with  a key. If certain 
>> particular flags are unset during the conversation because it is not 
>> protected, the negotiation should fail, right?. So some sort of 
>> denial-of-service problem will raise. Is that what you had in mind?. 
> 
> Right, it should fail. If there is no integrity protection of, in this case, 
> the client-requested-mutual-authentication flag, then it would silently 
> succeed.

However, in my mind you may confirm the value of that flag seen by both parties 
with an integrity-protected "binding" exchange after the key material has been 
exported by the EAP authentication.


> 
> -- Luke

-------------------------------------------------------
Rafael Marin Lopez, PhD
Dept. Information and Communications Engineering (DIIC)
Faculty of Computer Science-University of Murcia
30100 Murcia - Spain
Telf: +34868888501 Fax: +34868884151 e-mail: [email protected]
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