[petitmiam]

> "That said, Mega's also claims that their service saves room on its over-burdened servers by keeping a single copy of identical files How do they do that if they don't know their users' password? Good question. We don't know the answer."

Can anyone shed some light on how this might be possible, given the files are encrypted?

[wmf]

We've kinda been over this ad nauseam. It may be convergent encryption.

[xxchan]

If it is convergent encryption, though, a rights holder can still check if their content is being uploaded and send out takedown notices and then it's Rapidshare all over again. Not saying that it's the users/market Mega crowd is going after.

[fredgrott]

what is convergent encryption?

[DanBC]

Really?

(https://en.wikipedia.org/wiki/Convergent_encryption)

(http://www.hnsearch.com/search#request/all&q=convergent+...)

etc etc.

Do you have a more specific question, because there are people on HN who can answer it.

[adcoelho]

Since the same plaintext produces the same ciphertext with different passwords dosn't it expand the search space for a possible attacker?

[X-Istence]

Block level deduplication?