Re: How to get MSK/EMSK
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Thu Nov 26 15:19:21 EST 2009
> > In the client application I need to get generated EMSK from the wpa_supplicant.
> Could you please describe what you would be using the EMSK for?
I'm working on OMA DM protocol implementation for WiMAX. According to
WiMAX Forum specification EMSK should be used for Bootstrap Encryption
Key (BEK) derivation used for bootstrap message encryption.
> > Is the any wpa_cli (wpa_ctrl_request) command that can be used to retrieve the EMSK?
> No, wpa_supplicant, or well, even the EAP peer implementation inside
> wpa_supplicant, does not current export EMSK due to the restrictions
> mandated by RFC 3748. This may be changed once a future RFC describes
> how the EMSK would be used, but for the time being, you would need to
> do some modifications into the EAP peer code and control interface if
> you would like to get that information exported.
What are the purposes of EMSK generation and how the key is used for
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