[Cryptography] traffic analysis

[John Gilmore]

> > If we have a continually full channel full of fulsome noise, how does the receiver
> > distinguish valid traffic from nothing?

Here is one way that doesn't even require encryption, merely authentication:

  https://en.wikipedia.org/wiki/Chaffing_and_winnowing

Rivest designed this as more of a defense against the export controls
on encryption, than as a serious alternative to encrypting your packets,
but it can be used in combination with encryption to aid in traffic
analysis.

	John