title: Android Room Library and Encryption combination
body: <p>I am using room library to store my data, and my restriction is i cannot have api level below 22.
  Now I am having an attribute which i have to encrypt as this is having some sensitive data.</p>
  
  <p>I have successfully implemented encryption on simple strings but in room we are storing a list directly into database.
  Till now i have tried AES and RSA both on a simple string.</p>
  
  <p>Is there any approach available by which without creating extra objects i can encrypt my whole attribute in db. </p>
  
  <p>PS: <code>SQLCipher</code> is a heavy call hence i am not using that too.</p>