On Thu, Apr 08, 2004 at 03:50:48PM +1000, Donovan Baarda wrote: > I think I've just realised what you were getting at; if the > checksum_seed is based on something like the whole file md4sum, it > becomes repeatable, but unpredictable.
Not so. Copy the file once, and you'd get all the data you'd need to create a new local file using a known-signature attack (as long as the input file didn't change, and that's easy to predict for many files). I also don't like the doubling of the I/O-cost on the sending side, so I don't think this is a good way to go. ..wayne.. -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
