Dynamic committees and key lifecycle
Dynamic committees are part of the Luvion target network architecture. They reduce long-term dependence on one fixed signer group while preserving an explicit participant set, threshold, key epoch, and authorization transcript for every operation.
Governed candidate pool
A production candidate registry must define operator identity, admission, suspension, revocation, infrastructure independence, jurisdictional exposure, and any stake, contractual, or reputation requirements. Committee rotation does not solve Sybil risk when the candidate pool itself is correlated or controlled.
Epoch-bound selection
Each committee is bound to a defined epoch and registry state. The target selection process uses auditable, bias-resistant randomness and records the seed source, registry digest, selection version, output committee, exclusions, threshold, and activation boundary.
An authorization transcript cannot move between participant sets or key epochs.
Refresh and reconfiguration
Proactive refresh updates participant shares without changing the group public key or reconstructing a complete signing key. It reduces the value of shares compromised in an earlier period.
Participant reconfiguration changes membership. It requires an authenticated roster, encrypted share delivery, complaint handling, a qualified subset, and a decision to preserve the public key through resharing or activate a new key epoch through DKG.
Coordinator failover
Coordinator failover is a liveness mechanism, not a replacement for the signing threshold. A failed or malicious coordinator cannot forge authorization, but it can delay progress. A view change starts a fresh attempt and must not reuse commitments, nonces, or partial signatures from a failed attempt.
Current maturity
| Capability | Current classification |
|---|---|
| 3-of-5, 5-of-7, and 22-of-33 FROST certificate profiles | Controlled validation |
| Restartable FROST DKG processes | Controlled validation |
| Registry, key-epoch, activation, revocation, and rollback checks | Controlled validation |
| Dynamic committee selection and rotation | Experimental |
| Proactive resharing and incremental DKG | Experimental |
| Cross-operator production ceremony, HSM/KMS custody, and governed candidate pool | Planned production requirement |