This video 3:05 to 3:10
> What’s clever about onion routing is that no one in this network knows anything about the whole connection. They just know what’s before them, and what’s after them. Right…
Mind blown. This bit I just cannot work out how this would even be possible.
So, I’m trying to understand it using a pen and paper analogy.
* Me in my physical house – Home – HM
* Node 1 – House 1 – H1
* Node 2 – House 2 – H2
* (Exit) Node 3 – House 3 – H3
* I have pen and paper. (And I do all encryption by hand for the purposes of this thought experiment.) (And BTW my grasp of encryption keys is pretty shaky too, sorry…)
* All communication is by mail.
* I have a message – “facebook.com”
So I’m trying to visualize what I would write on the paper at HM. I’m trying to visualize myself as the occupant of H1, and what I would receive and what I would do with the letter. Same for H2. Same for H3.
First thing I’m stuck with is how do I even know the address for H1, H2 and H3? Is there some kind of “phone book” with the address of every node in the world on it, and I pick 3 at random? I’m assuming yes, and I at HM get to choose the 3 addresses. Is this correct?
And then, I’ve spent about 2 hours moving paper around my desk trying to work out how to encrypt or decrypt things and I just can’t make it work.
Can someone this in pen and paper terms? What do I write on the paper before I send it off?