title: How older version of android before 4.0 store data like password, accesstoken securly?
body: <p>I am building an android application that needs to store secure data on android device which also support older version of android before 4.0. I know that android 4.0 and version after that support key chain but my application needs to support older version.
  So can any one help and let me know which method used in older os version of Android.</p>