Onion Routing
Definition
Onion routing encrypts messages in multiple layers, each peeled by successive relay nodes. No single node knows both origin and destination. Tor network uses onion routing for anonymous communication. Post-quantum onion routing must use quantum-resistant encryption at each layer.
Technical Explanation
Onion construction: sender encrypts message for destination, then wraps in layers for each relay. Each relay decrypts its layer, learns only next hop. Entry node knows sender but not destination; exit node knows destination but not sender.
Quantum vulnerability: each layer uses public-key encryption. Current Tor uses curve25519—quantum-vulnerable. Post-quantum Tor research uses Kyber or similar. Metadata timing attacks remain independent of quantum resistance.
SynX Relevance
Route SynX transactions through Tor for network privacy—hide your IP from observers. For complete privacy, use quantum-resistant onion routing when available. SynX's on-chain privacy features complement network-layer anonymity.
Frequently Asked Questions
- Is Tor quantum-safe?
- Currently no—uses classical crypto. Post-quantum Tor is in development. Use for IP privacy now; upgrade when available.
- Does SynX support Tor?
- SynX nodes can be accessed via Tor. Run nodes as onion services for network anonymity.
- What privacy does onion routing provide?
- Network layer—hides IP addresses. Doesn't hide on-chain transaction details. Combine with other privacy features.
Network-layer privacy. Anonymous access to SynX