http://www.businessinsider.com/the-cia-just-put-a-ton-of-cash-into-a-software-firm-that-monitors-your-online-activity-2011-7

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I had the following idea:

What if one was to post information to sites which was already strongly encrypted - such that each post is the secure encrypted hash of what they mean to post.

A network of users would share READ keys between them and would be able to visit a site and see the posts of the other users for whom they had the read keys, see their posts and a browser plugin with the keys would translate them.

This would allow fairly open interaction between the group on various sites - but the details of their posts would be obfuscated from those who do not have the keys.

They would not be sharing information directly - but just passive messages via 3rd party infrastructure.

How viable would this model be?

Assume we move the clocks forward 10+ years. The cyber security pushes from .gov will be harder and harder.

I predict an "open" social network for cyber-marginals who want to interact with one another - but dont want to do a rediculous amount of security other than selective viewership of their posts.

They share keys and converse via commonly available infrastructure through pre-encrypted posts.

BONUS: their posting client allows for multiple replies/posts encapsulated into one hash:

When posting/replying - you type in multiple entries - which are encrypted.

Depending on which key you have, you see the appropriate decoded content.

This would allow for one to type utterly innocuous first level responses, more targeted and trusted upper level responses.