Daniel Micay on Twitter: "@4Dgifts @FernandoGont We don't want networks to be able to know that it's the same user as before. We default to stateless MAC randomization rather than the persistent per-network MAC randomization used by AOSP/stock. Also, networks could look the same as other networks. Status quo seems like a mess." / Twitter

From the latest GrapheneOS release notes (grapheneos.org/releases#2020.): > disable RFC 7217 support (stable link-local IPv6 privacy addresses) and stick to link-local IP addresses based on the (random) MAC addresses The Linux implementation of privacy extensions is some nasty stuff.

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We don't want networks to be able to know that it's the same user as before. We default to stateless MAC randomization rather than the persistent per-network MAC randomization used by AOSP/stock. Also, networks could look the same as other networks. Status quo seems like a mess.

12:49 AM · Jun 25, 2020Twitter Web App

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You may want to have two "connectivity profiles". One that employs RFC7217, and a paranoid mode where you do what you describe (or even better, do only temporary addresses -- see: tools.ietf.org/html/draft-iet)

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There are 3 choices for MAC randomization: grapheneos.org/usage#wifi-pri. AOSP / stock OS have 2 of those but not our default stateless MAC randomization. No configuration for other stuff right now. Since the stable secret is not per-network it screws up both MAC rand modes.

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