Software licensing involves more than just issuing keys; it also requires a mechanism to invalidate them when necessary, a process called revocation. Online revocation relies on clients periodically re-validating with a server, creating a window of time where a revoked key remains active, a trade-off between responsiveness and network connectivity. For offline systems, a signed revocation list distributed via updates provides a way to invalidate keys without network access, though this introduces latency based on update frequency. Ultimately, developers must consciously design these revocation windows based on the potential risk associated with compromised keys.
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