At 12:59 PM 10/19/95 -0400, Thomas Grant Edwards wrote:

This would require the remailer to examine entropy of messages passing through. Anything not random enough gets tossed.

A simple entropy measuring algorithm: Generate N random pointers into a file. (or extract N random short strings from the file) Sort them into order of the strings, Find the number of bits in common between one string and the next string. Total up S, the number of bits in common Calculate (N * lg N)/S For an encrypted file, this quantity should be close to unity, because the order in an encrypted file should not be easily detectable. --------------------------------------------------------------------- | We have the right to defend ourselves | http://www.jim.com/jamesd/ and our property, because of the kind | of animals that we are. True law | James A. Donald derives from this right, not from the | arbitrary power of the state. | jamesd@echeque.com