Advanced
Designing Bridges — Lesson outline
Understand cross-chain architecture.
Developer Advanced
5/8 — Designing Bridges — Lesson outline
RouteStay in this order so you don’t skip safety rails.
Bitcoin seems to be a very promising idea. I like the idea of basing security on the assumption that the CPU power of honest participants outweighs that of the attacker.
Steps
- Map trust model:Who signs, how many, on which chain; define expiry and pause rules.
- Write message hash function:With domain separation + nonce.
- Implement lock (source) and:Release/mint (target) with replay guard.
- Verify proofs (trusted signer):Before changing balances.
- Add events for monitoring;:Add pause/rotate controls.
- Test replays, wrong chain:IDs, expired proofs, and paused state.