Client Implementation Status

This page contains a list of major RLPx features and the current status of those features for client implementations.

Go [ ] C++ [ ] Py [ ]: discovery performed via 8 bits-per-hop routing
Go [x] C++ [x] Py [ ]: udp addresses determined by socket address of recvd Ping packets
Go [x] C++ [x] Py [x]: tcp addresses determined by contents of Ping packet
Go [ ] C++ [ ] Py [x]: tcp addresses are only updated upon receipt of Pong packet
Go [x] C++ [x] Py [x]: Signed discovery packets
Go [x] C++ [ ] Py [x]: idle bucket refresh: for each bucket which, isn't empty or is empty and furthest away, and which hasn't been touched in 3600 seconds, pick a random value in the range of the bucket and perform discovery for that value
Go [x] C++ [x] Py [x]: perform discovery protocol with a concurrency of 3
Go [x] C++ [x] Py [x]: timeout any packet operation if response is not received within 300ms
Go [?] C++ [ ] Py [ ]: distance based on xor(sha3(NodeIdA),sha3(NodeIdB))

Alex WiP:

Go [x] C++ [x] Py [ ]: Initiation and Acknowledge implemented with ECIES std w/AES128-CTR for symmetric cipher
Go [x] C++ [x] Py [ ]: Initiation, Acknowledgement, and Authentication for unknown node
Go [x] C++ [x] Py [ ]: Initiation, Acknowledgement, and Authentication for known node
Go [x] C++ [x] Py [ ]: Derive shared secrets from handshake
Go [x] C++ [x] Py [ ]: Move capabilities into authentication payload (replaces Hello packet)

Go [ ] C++ [ ] Py [ ]: basic frame, move protocol-type into frame header (replace magic sequence w/frame header)
Go [x] C++ [x] Py [ ]: mac of header and frame
Go [ ] C++ [ ] Py [ ]: chunking with static 1KB frame size (requires fair queueing)
Go [ ] C++ [ ] Py [ ]: poc9+ sequence-ids for non-chunked packets
Go [ ] C++ [ ] Py [ ]: poc9+ dynamic framing

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