US Patent 11436344 Secure encryption in deduplication cluster

Secure encryption in a deduplication cluster, including: initiating, by a node among a cluster of nodes, a leadership transition that includes transmitting an updated secret key identifier to each of the cluster of nodes; receiving, at the node, an alternative secret key identifier that is different from both a current secret key identifier and from the updated secret key identifier; updating, based at least in part on a resolution policy, the current secret key identifier to be the updated secret key identifier instead of the alternative secret key identifier; and transitioning, based at least in part on the updated secret key identifier being selected to be the current secret key identifier, the node to be a leader node of the cluster of nodes.