Zero Knowledge

I’ve liked the term “zero knowledge” back when it was used in the context of Diffie-Hellman key exchanges and other scenarios (see http://www.cs.princeton.edu/courses/archive/spr10/cos433/lec17new.pdf for examples). Zero knowledge cloud storage means the cloud service provider has no knowledge of the file(s) and folders you put on their storage (other than of course size and filename).  Note: if […]

DuckDuckGo

DuckDuckGo  promotes itself on several points — when you go to their site: Switch to DuckDuckGo and take back your privacy! We don’t store your personal info. We don’t follow you around with ads. We don’t track you. Ever. This is generally good, and if all is well, your searches will not be given to advertisers. […]

What is keybase.io?

https://keybase.io  is hard to describe.  It started as a place for publishing someone’s public keys if you wanted to send someone an encrypted message or file. More recently it added a file system, with private and public folders.  The private folders are encrypted with user-generated keys that are not held by the keybase servers, so […]