Step 5: HS rendezvous protocol

[igor53627]

Parent Issue

Part of #23 (Onion service support)

Overview

Implement the core HS rendezvous handshake protocol.

Tasks

• Construct INTRODUCE1 cell with:
  • Service public key
  • Rendezvous point link specifiers
  • Rendezvous cookie
  • Encrypted payload (keys for service)
• Send INTRODUCE1 to introduction point
• Wait for RENDEZVOUS2 on rendezvous circuit
• Complete cryptographic handshake
• Establish end-to-end encrypted stream

Technical Notes

• This is the most complex part of HS protocol
• Reference: rend-spec-v3 sections on INTRODUCE1/RENDEZVOUS2
• May need to adapt code from tor-hsclient

Dependencies

• Step 4: Introduction and rendezvous circuits #40 (Introduction and rendezvous circuits)

Acceptance Criteria

• INTRODUCE1 sent successfully
• RENDEZVOUS2 received and processed
• Can open stream to hidden service