Dealing with retransmitted EAPOL msg 3/4 and 4/4

Jouni Malinen j at
Tue Mar 14 02:52:25 PDT 2017

On Wed, Mar 08, 2017 at 03:32:52PM +0100, Mathy Vanhoef wrote:
> On Wed, Mar 8, 2017 at 12:59 PM, Jouni Malinen <j at> wrote:
> > That is needed for WPA, but with WPA2 (= RSN), unencrypted EAPOL frames
> > are not supposed to be accepted after TK has been configured.
> Interesting. Is it needed for some specific reason for WPA, or was it
> just a requirement of the older WPA standard?

It's been more than ten years from that, but if I remember correctly,
number of early WPA implementations did not encrypt some of the
EAPOL-Key frames (especially group key handshake) after the TK was

Jouni Malinen                                            PGP id EFC895FA

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