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A comment on Webfs: A Filesystem Built on Top of the Web. Parent comment

Re:Webfs: A Filesystem Built on Top of the Web by rkagerer on Saturday January 04, 2020 @10:30PM (#21959432)
Your page mentions files in a store are identified by a hash of their contents. Does this have any privacy implications?

Can another participant in the network tell what files are in my store? (like a party providing disk space, or someone intercepting my traffic)

[ Parent | on HN ]
Re:Webfs: A Filesystem Built on Top of the Web by brendoncarroll on Saturday January 04, 2020 @11:07PM (#21959570)
Encryption keys are derived from a secret and the hash of the data. The secrets are set per Volume. An empty secret would be a convergent encryption strategy, maybe suitable for public data. If the secret is set then the keys will be convergent with other keys generated with the same secret. This amounts to deduplication within a Volume, and privacy.

All a storage provider sees are many small encrypted blobs, so the size of large files is not leaked either.

[ Parent | on HN ]