process method
Process a whole block of blockSize bytes stored in data
at once, returning the result in a
byte array.
This call is equivalent to processBlock but it allocates the array under the hood.
Implementation
@override
Uint8List process(Uint8List data) {
var out = Uint8List(getOutputSize(data.length));
var len = processBytes(data, 0, data.length, out, 0);
len += doFinal(out, len);
return Uint8List.view(out.buffer, 0, len);
}