credentials-quickstart

Get Started

This is a quickstart sample for the Android Credentials API, which is part of Smartlock for Passwords on Android. Visit the following link for more information:

https://developers.google.com/identity/smartlock-passwords/android/get-started

Optional

Determining the SHA512 Hash of Your Keystore

This application demonstrates the use and verification of ID Tokens retrieved from Credentials which is a great way to authenticate your client applications with your backend server. You will need to determine the SHA512 hash of your application and update MockServer.java accordingly.

Run the quickstart and successfully load a credential. Then in the adb logcat logs, search for "IDToken Audience". There should be a log message containing the audience of the ID Token in the loaded credential which will have the following form:

android://<SHA512>@<PACKAGE_NAME>

Copy the SHA512 from that log message and update MockServer.java.

For example for this log message:

D/MockServer: IDToken Audience:android://_6Gx0cvSsFgTLF3NJCJIUs9BDaZMdSnXosAbPYYLiTqNWvR0IMc0C-UQehhmDu8t8l4fd3tEI6TlVCoqybFV5g==@com.google.example.credentialsbasic

The SHA512 hash is

_6Gx0cvSsFgTLF3NJCJIUs9BDaZMdSnXosAbPYYLiTqNWvR0IMc0C-UQehhmDu8t8l4fd3tEI6TlVCoqybFV5g==