Quantum Link

Quantum Link is a networking protocol for end-to-end encrypted communication. Authenticated sessions carry reliable, multiplexed byte streams.

• Transport agnostic
  • Any transport that delivers complete records can carry Quantum Link
  • ql-btp splits records into chunks for links with a limited MTU
• Forward secret sessions
  • Noise-style handshakes using ML-KEM-1024 establish fresh session keys
  • Communication is encrypted with AES-256-GCM
  • IK and KK connect known peers
  • XX pairs new peers using an out-of-band token
• Routable records
  • Visible sender and recipient identifiers allow routing without decrypting payloads
  • The routing metadata is authenticated
• Reliable streams
  • Each session multiplexes bidirectional byte streams with per-stream flow control
  • Applications can layer their own encoding and RPC on top

Crates

• ql-btp: QuantumLink BTP framing for splitting records into MTU-sized chunks
• ql-codec: Binary codec primitives
• ql-common: Shared protocol types
• ql-wire: QuantumLink wire-format definitions
• ql-fsm: QuantumLink Sans-IO protocol finite state machine
• ql-runtime: QuantumLink async runtime
• ql-rpc: RPC modality layer over QuantumLink streams
• ql-router: Router protocol and client
• ql-api: Application message definitions
• ql-keyos: KeyOS addressing primitives

License

This project is licensed under either the MIT license or the Apache License 2.0, at your option.