Re: [PATCH] nl80211: Indicate SUITE_B_192 capa only when GCMP-256 supported

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On Mon, Oct 28, 2019 at 09:22:34AM +0100, Mikael Kanstrup wrote:
> On 10/27/19 3:24 PM, Jouni Malinen wrote:
> > Thanks, applied. Though, I added CCMP-256 as an alternative acceptable
> > cipher for indicating SUITE_B_192 based on the exact requirement in the
> > IEEE 802.11 standard. In practice, I don't expect this to result in any
> > difference since there are likely no drivers supporting CCMP-256 without
> > GCMP-256.

> Thanks! For our case adding CCMP-256 is not a problem. But I am not able to
> confirm this in the standards. Can you please point me in the right
> direction?

IEEE Std 802.11-2016, 9.4.2.25.3 AKM suites:

"The AKM suite selector value 00-0F-AC:12 is used only with cipher suite
selector values 00-0F-AC:9 (GCMP-256), 00-0F-AC:10 (CCMP-256),
00-0F-AC:13 (BIP-CMAC-256), and 00-0F-AC:12 (BIP-GMAC-256)."

-- 
Jouni Malinen                                            PGP id EFC895FA

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