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Peergos doesn't hide access patterns as far as I can tell.
by libeclipse 6y ago
Peergos doesn't hide access patterns as far as I can tell.
- ianopolous 6y agoWe use a similar structure to their oram, a merkle champ, with random labels. Some operations do move blocks to new labels, but reads currently don't because of the overhead as well as wanting to support multiple concurrent readers.
- slaymaker1907 6y agoORAM is pretty costly for a feature that many people don’t actually need. Yes it is log(n) for reads and writes, but the bigger downside is that ORAM by design thrashes any cache you happen to be using. I imagine this would be particularly noticeable for filename resolution with deep directories. Plus, ORAM provides no protection out of the box for timing based attacks.