Bug: 145836245

Clone this repo:


  1. 8507885 Switch from manifest.c to manifest.json config by Rajesh Nyamagoud · 4 months ago master
  2. d526a11 Remove OWNERS file by Nick Bray · 3 months ago
  3. b6db381 Increased stack and heap size to allow for allocating a large pseudo framebuffer by Janis Danisevskis · 6 months ago
  4. 4730f2d Add ui integration by Janis Danisevskis · 6 months ago
  5. 0c80dea Add an example layout. by Janis Danisevskis · 6 months ago

ConfirmationUI Trusted App

This is an implementation of the ConfirmationUI trusted application for Trusty. It is meant as a reference implementation for OEMs who want to implement ConfirmationUI or “Android Protected Confirmation” and use Trusty as TEE OS.


  • Android platform/system/teeui
  • libcxx
  • freetype

Additional integration work

You will need a touch controller driver or another trusted input method for the targeted platform.

Included in this package is a sample layout as used by Pixel3(+) phones. For phones that use button on the right side of the phone this layout can be adjusted by configuring the context parameters. E.g.: (see TrustyConfirmationUI.cpp) conv.setParam(1440_px); conv.setParam(2960_px); conv.setParam(34.146_mm); conv.setParam(44.146_mm); conv.setParam(54.146_mm); conv.setParam(64.146_mm);


A default example layout is provided in examples/layouts/. To override the layout with a vendor specific one, define CONFIRMATIONUI_LAYOUTS to point to the layouts library you want to link against.