Messages in this thread | | | From | jlnance@unity ... | Date | Fri, 17 Oct 2003 08:33:44 -0400 | Subject | Re: Transparent compression in the FS |
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On Fri, Oct 17, 2003 at 11:44:44AM +0200, Pavel Machek wrote: > Hi! > > > Several months ago we encountered the hash collision problem > > with rsync. This brought about a fair amount of discussion > > So you found collision in something like md5 or sha1?
No, rsync uses a much weaker hash. The paper on the rsync alg is interesting and has all the details, so you should read if if you want to be sure. But from my memory rsync uses a combination of a weak 16 bit hash which it rolls through the data, and a strong 32 bit hash which it uses to check the 16 bit hash. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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