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adds brief comparison with Tor

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Sanaz Taheri Boshrooyeh 2021-08-04 13:46:56 -07:00 committed by GitHub
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Tor-vs-Waku/WAKU2-Relay-Privacy.md
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@ -39,3 +39,16 @@ The same analysis as above applies to **Participation Anonymity**.
- The number of topics transported within the same mesh determines unlinkability level, e.g., if the mesh is used to transport k topics then for every two messages m1 and m2 transported within that mesh, the probability that these two belong to the same conversation is 1/k - The number of topics transported within the same mesh determines unlinkability level, e.g., if the mesh is used to transport k topics then for every two messages m1 and m2 transported within that mesh, the probability that these two belong to the same conversation is 1/k
- The anonymity level can be increased by generalizing the topics hence supporting more topics within a single mesh - The anonymity level can be increased by generalizing the topics hence supporting more topics within a single mesh
- Increasing anonymity of recipient comes with the bandwidth penalty for all the participants i.e., nodes have to spent their bandwidth to relay messages, not within their interests - Increasing anonymity of recipient comes with the bandwidth penalty for all the participants i.e., nodes have to spent their bandwidth to relay messages, not within their interests
# Comparison with Tor
Tor protocol provides the following privacy properties, however against an attacker with limited scope.
- sender anonymity
- participation anonymity
- unlinkability
A global adversary can break anonymity by statistical analysis based on
- content size
- Transmission direction
- counts
- timing