On Tue, 2012-09-11 at 13:09 -0700, David O'Brien wrote: > > Good to see someone have thoughts on this. > I've only seen it stated that entropy passes thru mostly "untouched" > thru > a cryptographic hash in the literature. I haven't seen anything > mentioned > about entropy thru a compression algorithm other than as an estimation > of entropy.
I would expect that a lossless compression scheme by definition could not destroy entropy, it could only change the way it's encoded. Whether the same might be true of a hash is an interesting question, since it discards information rather than just changing the way it's encoded. -- Ian _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-rc To unsubscribe, send any mail to "[email protected]"
