signing authority

Definition

The authority to sign on behalf of the controller of the authoritative key pair. Often in situation where delegation has taken place, e.g. a custodial agent. These are limited rights because rotation authority is not included.

Relation to rotation authority

The original controller of an AID can hold exclusive rotation authority. Because control authority is split between two key sets, the first for signing-authority and the second (pre-rotated) for rotation authority, the associated thresholds and key list can be structured in such a way that a designated custodial agent can hold signing authority while the original controller can hold exclusive rotation authority.