title: Using java to encrypt integers
body: <p>I'm trying to encrypt some integers in java using java.security and javax.crypto.  </p>
  
  <p>The problem seems to be that the Cipher class only encrypts byte arrays.  I can't directly convert an integer to a byte string (or can I?).  What is the best way to do this?</p>
  
  <p>Should I convert the integer to a string and the string to byte[]?  This seems too inefficient.</p>
  
  <p>Does anyone know a quick/easy or efficient way to do it?</p>
  
  <p>Please let me know.</p>
  
  <p>Thanks in advance.</p>
  
  <p>jbu</p>