After planned migration, connection is linkable to prev. path

quinn-rs / quinn

Async-friendly QUIC implementation in Rust

Apache License 2.0

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After planned migration, connection is linkable to prev. path #1803

Closed nemethf closed 1 month ago

nemethf commented 2 months ago

The server switches to a new CID, but it sends a path-challenge on the old path with the new CID. So it is still possible to trace back the connection to the old path after the client switches to a new socket.

See #1800 for breaking linkability on the client side.

Ralith commented 1 month ago

https://github.com/quinn-rs/quinn/pull/1857 should sort this out.