failure after 4 way handshake

[matthieu castet]

matthieu castet wrote:
> Hi,
> 
> Jouni Malinen wrote:
> 
>> On Mon, Oct 17, 2005 at 08:47:36PM +0200, matthieu castet wrote:
>>
>>
>>> the RX frame is 8 byte too long and the encrypted packet is 8 bytes 
>>> too short. And the LLC header is 8 bytes long.
>>
>>
>>
>> That extra 8 bytes could be Michael MIC in the end of the frame that the
>> driver might need to remove (and maybe add for TX?).
>>
> You should be right : the driver write 8 extra bytes at the end of the 
> packet when transmitting.

You are right : the driver should add the mic key.
But I failed to compute the MIC key :( I should be a very stupid error, 
but I can't find it.
Could you check if what I am doing is right or give me a link where 
there is a doc how to compute a MIC key.

I attach a test that decrypt and compute the mic key of an encrypted packet.


thanks

Matthieu
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