The AndroidHardening project has been renamed to GrapheneOS to reflect significant progress towards it becoming a broader and more sustainable project: github.com/GrapheneOS. It will be expanding into a broader and more sustainable project with more developers on board soon.
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do you have any plans to support OPTee or create mitigation capabilities in TAs?
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I'd like control over the TEE to harden it and develop features based on it, but unfortunately that's only available on development boards or future custom hardware which is far away. For example, github.com/GrapheneOS/Aud would like better pairing and also more signed information.
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Thats cool, would love to see you partner with handset vendors to have full stack graphene
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I added support for using the StrongBox HSM (developer.android.com/training/artic), but it really doesn't change change much. The TEE is still responsible for everything other than storing and using the keys. They did make some changes helpful for my use case but not the main things I wanted.