Daniel Huigens d844b8b06c Add minimum AEAD buffer size
This enables parallelism for streaming AEAD chunked encryption.

The reason we can't do so at the very end of the pipe chain
(e.g., in `readToEnd`) is because requests for increased
buffering (i.e. `desiredSize > 1`) do not propagate backwards,
only requests for backpressure (i.e. `desiredSize <= 0`) do.
2018-08-14 16:35:39 +02:00
..
2018-08-14 16:35:39 +02:00