CopperheadOS appears to becoming active again. There is — AFAICT — a new document on Verified Boot security.
There’re also a series of tweets to show the current perspective of open source software (”source-available software’):
Hardware-based attestation app for select Android devices. It can do either local verification with another Android device via QR code or scheduled server-based verification. It primarily relies on Trust On First Use using the hardware-backed keystore and key attestation. The initial unpaired verification relies on key attestation root.
it looks like CopperheadOS is continuing:
Tweets from CopperheadOS, a security-centric Android-based distribution, are a good source of Android security news, since they’re stretching the boundaries of the open source android release.
CopperheadOS is “A security and privacy focused mobile operating system compatible with Android apps.“.
It appears the company is having problems trying to monetize an open sourced operating system. I hope they can solve things, they’re doing interesting security things with Android.
Copperhead OS is a hardened verison of Android, including PaX and other security features beyond ASOP, mainly targetting Google Nexus devices. It appears they’re having some problems with availability of ASOP blobs from Google on some new Nexus devices: