d1ccb45945
This makes IV-using Cipher implementations backed by AndroidKeyStore refuse to be reused. After Cipher.doFinal completes, invoking update or doFinal will raise an exception. This is to make it harder to violate the security best practice of not reusing IV in encryption mode. Bug: 18088752 Change-Id: I5102f9e8b2ff428254294703e48948ea8576603d