title: What is the best way to Zip NSData with a password?
body: <p>While researching the subject I found a few libraries that may be helpful in this:</p>
  
  <ol>
  <li><p>Objective-zip</p></li>
  <li><p>ZipArchive</p></li>
  <li><p>SSZipArchive</p></li>
  </ol>
  
  <p>There's probably more?!</p>
  
  <p>All I need is to zip NSData created from an NSString; either encrypt it or password protect it and then send via the email.</p>
  
  <p>Any known issues with any of these libraries? Is there a rule of thumb as to using one over another? So far I am leaning towards the Objective-zip, but I don't have much experience in that area.</p>
  
  <p>Thanks!</p>