TwoDeg (for Two Degrees) is a proof-of-concept (just for fun, not profit) social network that allows you to create ad-hoc channels (akin to circles) to communicate and share within smaller groups. We took the private-by-default approach as well. Moreover, we make the reach/extent of every post clear to the user by listing the people who can see it.
We used a combination of symmetric key and public/private key encryption in JavaScript to encrypt the information in the browser (I know the whole argument about how insecure that is - this is just proof-of-concept). Only you or your friends (or the people you share a post with) have the keys to decrypt the information. We, as the service provider, just move around encrypted data.
We don't have data export functionality, but that is something we could easily add.
TwoDeg (for Two Degrees) is a proof-of-concept (just for fun, not profit) social network that allows you to create ad-hoc channels (akin to circles) to communicate and share within smaller groups. We took the private-by-default approach as well. Moreover, we make the reach/extent of every post clear to the user by listing the people who can see it.
We used a combination of symmetric key and public/private key encryption in JavaScript to encrypt the information in the browser (I know the whole argument about how insecure that is - this is just proof-of-concept). Only you or your friends (or the people you share a post with) have the keys to decrypt the information. We, as the service provider, just move around encrypted data.
We don't have data export functionality, but that is something we could easily add.