This is a follow-up on the original post: Location based service and privacy (or the lack thereof). This post, part two is a short evaluation of how sharing my location with each and everyone changed my life.
Okay so what did I do? Well I spend the first couple of weeks tweeting, and sharing my location on foursquare 4 or 5 times each day. I lost some followers to that but it was in the name of science. My days basically are kind of »Read More

is the one that you send to other parties and the Private is the one you should guard with your life. When someone encrypts a message with your Public Key, your Private key allows you to decrypt it, and since it is signed with the others Public key, the matching Private key allows for decryption as well.