this post was submitted on 14 Jun 2024
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GrapheneOS is fundamentally better, if CalyxOS didnt fix up their mess in the past months.
I also use calyx but I'll agree that graphene is technologically superior of the two. I'm more comfortable with the idea of using MicroG as opposed to sandboxes google play but that's not to slant the implementation in any way.
I also avoid sandboxed play like hell.
But note
Sandboxed Play is better for privacy and may prevent a Pegasus/malware vector.
DivestOS has sandboxed microG but I didnt try it. Also note that microG could break any time and the Google binaries may be outdated.
Privileged android apps are a huge attack surface as so many devices have them. So outdated privileged microG binaries may be a target.
Re-implementation means reverse-engineering and building new binaries. What's the point of MicroG if it is just downloading google binaries? An app with privileged access is different than a remote access trojan. The whole point of a sandbox is not to have the same access as the original app.
What you are saying doesn't make any sense.
Strong words here.
I couldnt find what is the correct definition of "reimplementation" but we can assume it either means "taking the binaries and bundling them in a different bundle" or "writing different code to do the same thing".
What sandbox? Not the Android app sandbox, as microG (when I used it) needed to be installed as system app i.e. flashed to the system partition.
microG may isolate the binaries or whatever code it runs in some way, but not via the Android App sandbox.
Now GrapheneOS uses a privileged app that channels the calls of the unprivileged to the OS. This is also possible for microG, so it can run unprivileged too. DivestOS does that.
The concept of signature spoofing and more is poorly pretty flawed.
I would really like if a fully open source rewrite of the core services could just work, but these apps are written for Google, contain the official proprietary code anyways, and signature spoofing only works if you dont use many hardware security features.
GrapheneOS can be extremely secure when degoogled, but it cannot securely fake to be a Google Android. And neither can microG Android.
You would need to change the apps to do that.