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Tarsnap deduplicates your data with respect to your data. It can't compare your data with everybody else's data, because your data is encrypted with keys which
by cperciva 9y ago
Tarsnap deduplicates your data with respect to your data. It can't compare your data with everybody else's data, because your data is encrypted with keys which only you hold.
Dropbox deduplicates everybody's data, so that they'll be able to take advantage when you and someone else both store the same file. (Of course, this trivially means they can recognize when someone stores a file which the FBI has previously provided to them.)
- mercer 9y agoAh, of course! Thanks for clearing that up (I was hoping you would chime in). Oh, and thanks for a product that does what I need it to do. I'd maybe have liked a bit more documentation (for example, how to speed up retrieving a backup), but other than that I'm very happy with it!