4 ms·
I have some concerns on the 2 sentences (from their website): - "We've developed proprietary de-duplication and compression technology to be able to give you u
by ecesena 13y ago
I have some concerns on the 2 sentences (from their website):
- "We've developed proprietary de-duplication and compression technology to be able to give you unlimited storage"
- "Your files are encrypted with AES-256 bit encryption"
I'd prefer to know that my data is not encrypted, rather than reading marketing sentences that have none or obscure meaning when read together.
- cmurphycode 13y agoActually, you can use convergent encryption to dedup encrypted files. It leaks information (because I can tell whether a file that I possess already exists on the server if the server is silly enough to tell me that it took no space/time) but it is indeed encrypted. Check out this discussion of Mega for more info: https://news.ycombinator.com/item?id=5072680 https://news.ycombinator.com/item?id=5072680
- ecesena 13y agoAlso if you encrypt a file with a key made of all 0, it's still encrypted... :) I've added a few more details about my concerns in the other reply.
- ritikm 13y agoHappy to clarify. We use convergent encryption (http://en.wikipedia.org/wiki/Convergent_encryption http://en.wikipedia.org/wiki/Convergent_encryption), which works with our de-duplication. Example: You and I both have a file A. Our software encrypts that file A with a unique key generated from the file (say, the MD5 hash of the file), which makes E(A). Every user that uploads file A will generate the same encrypted version E(A) because the encryption key will be the same across each user (the MD5 hash of A).
- fletchowns 13y agoDoes the de-duplication aspect of it have any impact on DMCA/copyright issues? For example, lets say somebody from HBO downloads Game of Thrones from The Pirate Bay and then uploads it to Streem. We could assume that many other people on Streem also have that same copy of the episode uploaded. HBO then issues a DMCA takedown (could they?), would Streem delete the file for everybody? And does Streem then have to prevent anybody from re-uploading it?
- Meekro 13y agoSince there's no way to globally "publish" a file, I don't see how DMCA takedowns could work.
- fletchowns 13y agoHence why in my hypothetical it would take the copyright holder themselves to both upload the file as well as issue the DMCA takedown.
- Meekro 13y agoBy uploading the file, wouldn't the copyright holder be authorizing the cloud service to store it for them?
- ritikm 13y agoWe follow the same DMCA policy as Dropbox, etc. [1] If we get a DMCA takedown notice, we disable public linking and sharing on the file. The original owner gets to keep the file in their own account (exactly how Dropbox works). [1] http://techcrunch.com/2014/03/30/how-dropbox-knows-when-youre-sharing-copyrighted-stuff-without-actually-looking-at-your-stuff/ http://techcrunch.com/2014/03/30/how-dropbox-knows-when-your...
- ecesena 13y agoThanks! This means that (using wikipedia terminology) because of "the confirmation of a file attack", an attacker having access to my encrypted storage can obtain an unencrypted copy of all files "publicly known". Will you consider stronger encryption (of course as a premium service)?
- jasondc 13y agoI wonder if the compression technology is as good as Pied Piper's.
- obliojoe 13y agoYep. First thing I thought when I read that.