microg / microg/GmsCore

[all apps] Play Integrity completely gone with Companion

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#3,198 50 comments 8 reactions 0 assignees View on GitHub

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Dominant language
Java
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Description

ALL APPS

PI is completely broken. All apps that require any attestation are broken.

Steps to reproduce the behavior:

  1. Install MicroG and Companion as system or have them prebuilt
  2. Install and use any PI checker.
  3. MicroG fails all integrity checks when using Companion

MicroG+Companion should support PI, at least BASIC.

Android Version: 16
Custom ROM: CrDroid 12.3

microG Core version: latest as of writing (0.3.11)
microG Self-Check results: All ticked.

I depend on BASIC PI for my bank.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The report names no source files or tests. Start by reproducing the failure with MicroG, Companion, and a Play Integrity checker on the stated Android and ROM versions; done means Companion allows MicroG to pass at least BASIC integrity checks.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java
Domain
authentication, mobile, security
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
35/100

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