GrapheneOS [Unofficial]

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GrapheneOS is a privacy and security focused mobile OS with Android app compatibility.

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This is a community based around the GrapheneOS projects including the hardened Android Open Source Project fork, Auditor, AttestationServer, the hardened malloc implementation and other projects.

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GrapheneOS Now Supports a Duress Reset PIN and More (grapheneos.social)

submitted 5 months ago by [email protected] to c/[email protected]

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Latest release of GrapheneOS finally shipped the long awaited duress PIN/password implementation. If you have a spare device, we recommend trying it out.

We've added initial documentation to the features page:

https://grapheneos.org/features#duress

It near instantly wipes and shuts down.

We've also finally added documentation on our USB-C port control to our features page:

https://grapheneos.org/features#usb-c-port-control

Most users can set this to "Charging-only when locked" without a loss of functionality or even "Charging-only" if you don't use USB accessories, DisplayPort or MTP.

Default is "Charging-only when locked, except before first unlock" to avoid locking users out of devices with a broken touchscreen. The main threat model for this is defending the device until the auto-reboot timer started when the screen is locked gets user data back at rest.

Our upcoming 2-factor fingerprint unlock will make using a strong passphrase as primary unlock method practical via fingerprint+PIN secondary unlock instead of fingerprint-only. Great for people who want to avoid relying on secure element throttling but don't want fp-only unlock.

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[–] [email protected] 5 points 5 months ago (6 children)

The pin+fingerprint is super intriguing and exactly what I've been wanting for a while. I am curious about the range of options though. Could you use a pattern with fingerprint? Also, could you have a duress pin+fingerprint in addition to a duress password?

[–] MajorHavoc 1 points 5 months ago (2 children)

Also, could you have a duress pin+fingerprint in addition to a duress password?

If I read the release notes correctly, I think that's the case. The Duress mode requires setting both a Duress pin and a Duress password, (I think it's) so that no matter the current sign in options, Duress mode is still available.

[–] [email protected] 2 points 5 months ago

That is correct. During setup, you're prompted for both password and pin which allows use with pin or password prompts

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