Alternative to GrapheneOS
Alternative to GrapheneOS
Im considering buying a new phone and i don't really consider a Pixel. I really like Fairphones approach, with the self repairable stuff. Even though they don‘t have a headphone jack. But well… I can’t change it. I’ll definitely go with the adapter over wireless headphones.
But to my question: What private OSes are there? Fairphone sells FP4s with eOS, how is that? And does it work on the FP5? GrapheneOS only works on Google Pixels right?
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Graphene does only work on the pixel devices. What makes it special is that you can lock the bootloader again after installing it, which with things like lineage, you cannot do. I have never used /e/OS but i use lineage as my daily and it can be installed on FP
What makes it special is that you can lock the bootloader again after installing it
I'm not sure why this is considered special. You can also re-lock the bootloader with CalyxOS, iodéOS and DivestOS. This is a Pixel thing, not a GrapheneOS thing.
It's also possible to relock the bootloader on a handful of Motorola and fairphones, at least as part of the Calyx install procedure
Okay, I was not aware of that, so thanks for the information.
Honestly trusting the bootloader feels very risky
In that case, have fun coding up your own bootloader and flashing it onto the device. If you can't trust the bootloader, then you can't trust anything at all from the operating system that sits on top of it, because it could be compromised. If you can't trust a bootloader, then the only thing you can trust is a pen and a piece of paper.
True but it feels like obscurity via obscurity.
A huge part of the bootloader stack is opensource....
https://android.googlesource.com/platform/system/core/+/master/fastboot/
why dont we just put uefi on phones
GrapheneOS uses pixels because not even Google employees can break into it.
Yes. Insider Attack Resistance is pretty awesome.
I'd be more worried about the ROM that runs before the bootloader that you can't inspect, or possible hardware implants if you don't trust the bootloader shipped to you from the vendor.
I don't trust it not to be flawed
Ok what is your alternative? Android Verified Boot with a secure hardware keystore like the Google Titan M2 is basically the best thing you can get.
Strong encryption with a password you know only. The password should have a high enthropy
This is unrelated. You want to familiarize yourself with the concept of OS integrity and how it is different from data encryption. You can have a passphrase that encrypts your data alongside having access to these hardware features.
It has very minimal code and its implemented in a robust manner. Unlike UEFI and the desktop implementation of secure boot, it does work well and it has not yet been exploited on pixels. Its way better to have any kind of OS integrity check than none.