QUIC transport research & planning

[goodboy]

As a breakout from #136, I'm dumping some recent research links around
the possibility of supporting QUIC as being our desired transport in
the longer run instead of TCP 🏄

Seeing as most of the recent implementations are being written in
rust, seems like this potential work will likely go in tandem with
#352 😎

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Verbatim content from #136 bullet:

QUIC quick history and high level
info:

• developed at google. It's branded as a multiplexed-UDP: a low
  latency TCP replacement and it's being slowly standardized and
  introduced to http infra on the internet.
• the semantics of QoS / cancellation of sub-streams within
  connections since with trio we can definitely stick to the
  one-task-per-stream pattern easily.
• the stack is implemented in user space and thus it may have
  performance benefits to use cloudfare's rust impl
  quiche
  • comment notes
    on how we might do the python-rust integration
• there is an existing Python sans-io implementation
  aioquic has asyncio support
  using protocols, so we'll need to figure an alt to that for trio.
• Here's a list of uses / example code:
  • hypercorn's internal protocol support
  • an example of their trio supported udp server

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Recent updates on FOSS support:

• quinn: an async quic impl in rust: https://github.com/quinn-rs/quinn

• high level breakdown of lang support in (impls) of libp2p

  • official support landed in rust-libp2p last year seemingly based
    on the impl in quinn (above):
    • init issue: [Tracking Issue] transports/quic: Add QUIC Transport libp2p/rust-libp2p#2883
    • PR: transports/quic: Add implementation based on quinn-proto libp2p/rust-libp2p#2289
    • support ack: transports/quic: Add implementation based on quinn-proto libp2p/rust-libp2p#2289 (comment)
    • comment on missing functionality: [Tracking Issue] transports/quic: Add QUIC Transport libp2p/rust-libp2p#2883 (comment)

• aioquic asyncio support: https://github.com/aiortc/aioquic/tree/main/src/aioquic/asyncio

• quicssh GH project: https://github.com/moul/quicssh

  • author's blog: https://github.com/moul/quicssh
  • repohub index: https://reposhub.com/go/security/moul-quicssh.html
  • initial idea: https://manfred.life/ssh-quic
  • WESH protocol from same author, basis for berty messenger: https://berty.tech/docs/protocol/#direct-transport

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Standards and application compatibility research:

• https://datatracker.ietf.org/doc/id/draft-bider-ssh-quic-03.html
• https://dial.uclouvain.be/memoire/ucl/en/object/thesis%3A14590
• https://blog.denisbider.com/2019/06/the-case-for-ssh-over-udp.html
• https://blogit.michelin.io/quic-analysis-a-udp-based-multiplexed-and-secure-transport/