title: where the private key and public keys are getting stored in bigchainDB?
body: <p>assume that I am creating a key pair rahul,</p>
  
  <p>I can get the publickey and private key by</p>
  
  <pre><code>const rahul = new BigchainDB.Ed25519Keypair()```
  
  
  
  console.log('public key \n',rahul.publicKey);
  console.log('private key \n',rahul.privateKey);```
  
  apart from this, where can find the key pair of rahul in storage ?
  </code></pre>