I had an idea the other day - would it be possible to use public-key cryptography (eg, running in the background as a client-side browser plugin), to make something like facebook more private?
So, If I want to post something, it's automatically encrypted using all my friends' public keys (separately). That means they can only see what I have posted if I know their public key. If they wanted to reply, I can only see what they post if I have shared my public key with them previously.
Of course this system has flaws and wouldn't work well as it stands, keys could be compromised easily, and the more people that share public keys means the more easily the private data could be made public. You would need to trust your online friends not to repost things unencrypted etc... basically the more I think about it the worse it sounds, but the concept could be a starting point for something.
Actually your on point with something like the idea I have. My idea is the same but with more enhanced concept. It would be good to get geeks together on this. Im A+ certified tech and Im researching to understand how basic encryption works. Is time for people to take there privacy in there own hands. There are people who love the world to know what they do. but me in the other hand dont like to share my life. So lets brainstorm and start something new and fresh. also dont let the governement buy your ideas out.