public void Next(byte[] buffer, int offset, int count)
{
if (_writing)
{
_entropySource.NextBytes(buffer, offset, count);
}
else
{
throw new InvalidOperationException();
}
}
/// <inheritdoc />
public override void NextBytes(
byte[] buffer,
int offset,
int count)
{
lock (this) {
_csRng.NextBytes(buffer, offset, count);
var maxWindow = Math.Min(count, _maxWindowSize);
var windowOffset = _csRng.Next(maxWindow + 1);
var windowSize = _csRng.Next(count - windowOffset);
Array.Reverse(buffer, offset + windowOffset, windowSize);
}
}
public override void NextBytes(
byte[] buffer,
int offset,
int count)
{
lock (this) {
int done = 0;
while (done < count)
{
if (_windowCount < 1)
{
_csRng.NextBytes(_window, 0, _window.Length);
_windowCount = _window.Length;
}
buffer[offset + done++] = _window[--_windowCount];
}
}
}