How to build your own CA and TA for android

[Faidon09]

based on this guide (https://open-tee.github.io/android/ ) you need to have the android source.
Is it possible to use the android source that Android studio provides when you download the SDK?

In this approach I should link the two folders with this way?
ln -s $HOME/Open-TEE $ANDROID_ROOT/Open-TEE

Also how I can compile my own application?
For example i want to build the example_sha1_ca and the example_digest_ta.c and push them in the Android device.

I have successfully run the BundleTest and and Javaapitest based on this guide (https://github.com/Open-TEE/opentee-android)

Thanks

[sheepray]

Hi @Faidon09 , sorry for the late reply. I haven't checked this repo after my PR is merged.

So, for your question Is it possible to use the android source that Android studio provides when you download the SDK?

The answer is no. AFAIK, the Android SDK you have downloaded does not contain the Android source code.

If you want to develop your own apps, you need to download the Android source code to compile it along with the opentee native app. Otherwise, it is not necessary to download the Android source code.

Speaking of your 3rd question about how to compile your own application, as I wrote above, you need to download the Android source code and configure it according to https://open-tee.github.io/android/

For how to develop apps (including CAs and TAs), you can check out here https://github.com/Open-TEE.

If you have further more questions, please let me know.

Rui