title: Can I decrypt GCM AES stream in Bouncy Castle using anything having SkippingCipher interface?
body: <p>I have working AES GCM solution with Bouncy Castle (native API) exposing stream interface (<code>CipherInputStream</code> class). I know that GCM mode can be considered like CTR one so if I do not need authentication I should be able to decrypt stream from random place (if I know position) but what <code>mode</code> cipher can I use so it can decrypt AES/GCM stream and have <code>SkippingCipher</code>interface?</p>
  
  <p>Any related code example would be even better.</p>