@Override
  public boolean markSupported() {
    return false;
  }
This class does not support mark() and reset().
Applications that need random access to the plaintext of a long ciphertext
should use a SeekableByteChannelDecrypter (or SeekableDecryptingChannel).
java_src/src/main/java/com/google/crypto/tink/streamingaead/InputStreamDecrypter.java