Mode and Padding of EncryptionAlgorithm.WinZipAes256

Jul 8, 2014 at 1:34 PM
Edited Jul 8, 2014 at 1:36 PM
Hi!

We use Ionic.Zip with EncryptionAlgorithm.WinZipAes256.

Snippet:
using (ZipFile zip = new ZipFile(zipfilename))
{
    zip.Encryption = EncryptionAlgorithm.WinZipAes256;
    zip.Password = password;
    ...
}
Does this algorithm use one of the following modes and which of them by default
  • Galois-Counter-Mode (GCM) or
  • Cipher-Block Chaning (CBC) or
  • Counter Mode (CTR) ?
In case of using CBC, does it support one of the following paddings
  • ISO or
  • CMS or
  • ESP ?
Thx m