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Happy to clarify. We use convergent encryption (http://en.wikipedia.org/wiki/Convergent_encryption http://en.wikipedia.org/wiki/Convergent_encryption), which wo

by ritikm 12y ago

Happy 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 12y ago
Does 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 12y ago
  Since there's no way to globally "publish" a file, I don't see how DMCA takedowns could work.
  - fletchowns 12y ago
    Hence why in my hypothetical it would take the copyright holder themselves to both upload the file as well as issue the DMCA takedown.
    - Meekro 12y ago
      By uploading the file, wouldn't the copyright holder be authorizing the cloud service to store it for them?
- ritikm 12y ago
  We 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 12y ago
Thanks! 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)?

by ritikm 12y ago

fletchowns 12y ago

Does 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 12y ago
Since there's no way to globally "publish" a file, I don't see how DMCA takedowns could work.
- fletchowns 12y ago
  Hence why in my hypothetical it would take the copyright holder themselves to both upload the file as well as issue the DMCA takedown.
  - Meekro 12y ago
    By uploading the file, wouldn't the copyright holder be authorizing the cloud service to store it for them?
ritikm 12y ago
We 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 12y ago

Thanks! 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)?