IssueRaiser

Pedantic, but hopefully in a fun way: Authentication is the biggest problem with sector-level crypto, but the other technical problem wi...

Pedantic, but hopefully in a fun way: Authentication is the biggest problem with sector-level crypto, but the other technical problem with encrypting sectors is that you don't get a place to store the metadata you'd need to randomize the encryption, and so you lose semantic security as well. If you squint at it the right way, XTS is the ECB mode of sector-level (wide-block) crypto schemes.

Posted by tptacek on Feb 18, 2015, 8:58 PM

Tags

Related issues

Raise real-world problems, find people facing the same issue, and discuss solutions.8,000 issues0 comments

hackernews (Other)

Pedantic, but hopefully in a fun way: Authentication is the biggest problem with sector-level crypto, but the other technical problem wi...

tptacekFeb 18, 2015, 8:58 PM

Pedantic, but hopefully in a fun way: Authentication is the biggest problem with sector-level crypto, but the other technical problem with encrypting sectors is that you don't get a place to store the metadata you'd need to randomize the encryption, and so you lose semantic security as well. If you squint at it the right way, XTS is the ECB mode of sector-level (wide-block) crypto schemes.

Comments (0)

No comments yet. Start the discussion.

Comment on this issue