mix

Mix FURPS §

Functionality §

1. Nodes can mixify individual libp2p protocol messages for anonymous routing over a libp2p mixnet
2. Nodes can mixify libp2p request-response interactions for anonymous routing over a libp2p mixnet
3. The libp2p mixnet is protected against trivial DoS attacks
4. The libp2p mixnet is protected against a 50% + 1 Sybil attack
5. Nodes can discover other nodes that support mix using available peer discovery mechanisms
6. Exit nodes are protected against trivial abuse/overuse from a single user
7. The libp2p mixnet is protected against more sophisticated DoS attacks, e.g. coordinated DoS against intermediate nodes
8. An application-level mechanism exists to segment large messages and mixify over multiple paths
9. An application-level mechanism exists to segment large responses and coordinating multiple-SURB response paths
10. Nodes can generate cover traffic to increase K-anonymity in the mixnet
11. Providers can anonymously register as a hidden service
12. Clients can discover and anonymously access hidden services
13. The libp2p mix protocol’s payload encryption preserves payload integrity
14. A standalone Logos Mix module encapsulates the Logos libp2p module with nim-libp2p-mix, RLN-based DoS protection, and cover traffic for Logos Core services
15. Applications can route libp2p request-response messages over mix via the Logos Mix module API
16. Mix nodes maintain a local reputation record for peers
17. Nodes can use advanced cover traffic patterns to improve anonymity

Usability §

1. The libp2p mix protocol and pluggable DoS and Sybil protection is published in specifications
2. The libp2p mix protocol with DoS and Sybil protection is integrated in nim-libp2p
3. The libp2p mix protocol with DoS and Sybil protection is integrated into Waku Lightpush protocol as reference integration
4. A libp2p module with mix capability is integrated into Logos Core
5. A Logos Core demo chat app showcases message publishing over libp2p mix
6. The Logos Core demo chat app discovers mix nodes using libp2p kad-dht discovery with filtering
7. Extended DoS and exit node abuse prevention mechanisms are published in a specification
8. The application-level mechanism to support large messages (requests & responses) is published in a specification
9. Cover traffic generation is published in a specification
10. The protocol allowing hidden service provisioning, discovery and access is published in a specification
11. A DHT query can be mixified
12. The libp2p mix protocol is integrated into the Logos Mix Demo Chat module
13. The Sphinx payload encryption scheme providing payload integrity is published as a specification
14. The libp2p mix protocol is integrated into the Logos Delivery module with exposure on the Messaging API
15. The Logos Chat module provides a user interface to select mix when publishing messages
16. The Logos Mix module API for routing messages over mix is published as a specification
17. The anonymity limitations of the mix hidden services approach and alternative provider anonymity techniques are evaluated and published
18. Differentiated RLN rate-limiting based on peer reputation metrics is researched and published
19. Non-RLN DoS and Sybil protection approaches are researched and published
20. Advanced cover traffic patterns are researched and published in a specification
21. The opinionated protocol stack composition and configuration for a Logos Mix Network is specified

Reliability §

Performance §

Supportability §