title: Android Keystore store access tokens
body: <p>In my application, upon user successful authentication using OAuth I need to store the access token returned by the REST API. I was thinking of using the keystore to store this token for further use in the application. But so far I havent seen an implementation which stores already generated keys using android keystore APIs. Is there any example or code snippet which stores already generated tokens.</p>
  
  <p>Also if I use keystore to store the access tokens, can the rooted phone users gain access to these tokens?</p>
  
  <p>Thanks. </p>