Mixnet: Difference between revisions

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Created page with "A service that can run in conjunction with Beeds to increase anonymity, at the cost of speed. The overlay is just a list of nodes and their public keys. Frames are 1 seco..."
 
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A service that can run in conjunction with [[Beeds]] to increase anonymity, at the cost of speed.
* [https://leastauthority.com/blog/mixnet-intro/ Overview]
* [https://www.umic.rwth-aachen.de/fileadmin/user_upload/umic/results/publications/2007/landsiedel-More.pdf More]
* [https://www.freehaven.net/anonbib/cache/disad-free-routes.pdf Free Mixnets]


The overlay is just a list of nodes and their public keys. Frames are 1 second long, each frame a percentage of the network is chosen (~1%). We choose by taking the unix timestamp, hashing it and finding the N nodes with ID closest (xor) to it. Those become the mixnet routers for that frame.
== [https://www.freehaven.net/anonbib/cache/DBLP:conf/sp/DanezisG09.pdf Sphinx] 2009 ==
Hides the total number of hops.


The mixnet router will hold incoming messages until it is their frame (starting ~15 frames ahead). Messages must skip at least one frame but not more than 3, so at F0, we will be sending to F2-F4.  
They use the term "linkable message" to describe where two nodes can correlate a message (including the sender with a node in the receiving path or the receiver with a node in the sending path).


[[Category:Waxnet]]
Cool trick with cycling the public key.
 
== [https://arxiv.org/pdf/1507.05724.pdf Hornet] ==
Very similar to the structure I'm looking for.
 
== [https://github.com/dist-ribut-us/docs/tree/master/mixnetrouting Mine] ==
 
=== Onion ===
I think I could reduce the over head a little by having each node populate part of the header. I could use this approach to strip out the nonce which is about 30% of the header. Start with the end nonce and add a layer of unmacd encryption at each step with a zero nonce key.
 
=== Cyclic ===
I'd like to find a way to use ECC (which I think is possible) or AES (which I don't).
 
[[Category:Dist.ribut.us]]

Latest revision as of 12:30, 23 July 2018

Sphinx 2009

Hides the total number of hops.

They use the term "linkable message" to describe where two nodes can correlate a message (including the sender with a node in the receiving path or the receiver with a node in the sending path).

Cool trick with cycling the public key.

Hornet

Very similar to the structure I'm looking for.

Mine

Onion

I think I could reduce the over head a little by having each node populate part of the header. I could use this approach to strip out the nonce which is about 30% of the header. Start with the end nonce and add a layer of unmacd encryption at each step with a zero nonce key.

Cyclic

I'd like to find a way to use ECC (which I think is possible) or AES (which I don't).

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