title: reading a specific sector from mifare classic
body: <p>I would like to read sector 8 from mifare classic provided I already have the keys.</p>
  
  <p>From documentation <a href="http://developer.android.com/reference/android/nfc/tech/MifareClassic.html#authenticateSectorWithKeyA%28int,%20byte%5B%5D%29" rel="nofollow">here</a> on <code>authenticateSectorWithKeyA (int sectorIndex, byte[] key)</code></p>
  
  <blockquote>
    <p>A failed authentication attempt causes an implicit reconnection to the
    tag, so authentication to other sectors will be lost.</p>
  </blockquote>
  
  <p>It sounds like I have to authenticate with all sectors? Is it possible that I only authenticate with sector 8 and get the data only from that sector?</p>