Bitcoin may go quantum-safe while Lightning privacy stays exposed
- —PQLN adds ML-DSA to gossip, invoices and BOLT 12, and ML-KEM to transport and onion packets
- —Full network graph sync increases gossip downloads 10.2x and stored graph data 8.8x
- —Private routing adds 19–53 ms per hop at 10 Mbit/s and 160–187 ms at 1 Mbit/s
- —On-chain keys securing funding, commitment and HTLC outputs remain unprotected
Why it matters: It shows Lightning's post-quantum defense can be tested independently of a Bitcoin upgrade, but node operators face heavy gossip, storage and payment traffic overhead.
Source: CryptoSlate