[WalterBright]

Yeah, I'm not too interested in using any cloud storage:

1. slow 2. bugs that delete your data 3. company goes bust or dark for whatever reason 4. your private data is available to voyeuristic employees, hackers, spies, advertisers, researchers, monetizers, anyone who offers to buy it, stalkers, dragnets, and anyone who buys their used disk drives on ebay.

No thanks.

[verytrivial]

For personal backup of key files (not endless GBs of movies, just documents and precious pictures) I usually sync a Sparse Disk Bundle[1] with a good AES key. Sure, you have to trust Apple's AES implementation (I don't to any great extent) but it gets you some degree of privacy without much hassle. It is a cheap insurance policy.

[1] https://en.m.wikipedia.org/wiki/Sparse_image . It uses 8MB chunks by default which sync quite quickly.

[netheril96]

I wrote a FUSE filesystem (https://github.com/netheril96/securefs) to secure the data that is meant to be synced to the cloud. In principle it is more secure than alternatives because the randomization and authentication of encryption. It encrypts file by file so that no need to sync a huge data when you only change a single file.

[spost]

I see you submitted this a while back, it's a shame there wasn't much discussion! Seems like a neat idea and (to my naive knowledge of cryptography) a solid implementation.

[netheril96]

Thanks for your interest! I would also like it to receive more attention, but I guess technical superiority isn't much correlated with popularity.

[icebraining]

I think it's fine if you treat the services as dumb remote hard drives, meaning you expect them to fail at any time and that anyone can simply browse it at will, so you keep other copies elsewhere and encrypt before uploading.

I have my important files backed up to S3 and to a VPS, besides a local HD, using git-annex, and it suffers from none of those problems. If my VPS provider goes bust or S3 eats my data, I just open a new account elsewhere and "git annex copy" the files to it.