Coincidentally (or not), I just received the invite to beta test Sync.com [1] today. Seems a Dropbox-clone, for the privacy conscious user. They claim that all

Coincidentally (or not), I just received the invite to beta test Sync.com [1] today. Seems a Dropbox-clone, for the privacy conscious user. They claim that all files are encrypted, and they don't have access to the keys. The encryption algorithm is still private, but they say they'll open source it soon. While I like the approach a lot more than Dropbox (that fights to obfuscate its own algorithm), I still don't feel safe. Anyone with access to the server could intercept your keys, and thus have access to your data. TrueCrypt over some cloud-based solution is still the ideal option, but the lack of support for sparse images makes me hesitant. EDIT: no affiliation with Sync.com (or Dropbox, for the matter). Just trying to find a decent cloud-based storage solution that fixes the exact problem exposed by the OP. [1] http://www.sync.com/your-privacy http://www.sync.com/your-privacy