Patent ID: 11870914
Assignee: NCHAIN LICENSING AG
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method of jointly generating a digital signature by distributed nodes in a computing network, the computing network including a set of at least 2t+1 nodes including a coordinating node, wherein the digital signature is generated by joint participation of t+1 of the nodes in the set, where t>1, the method including a signature phase that comprises:
sending requests for signature shares from the coordinating node to at least t+1 nodes in the set;
in response to the requests, and without sending a further communication from the coordinating node relating to the digital signature during the signature phase, receiving, by the coordinating node, response messages from at least t nodes in the set and not receiving a response from at least one of the at least t+1 nodes, the response messages each containing a respective signature share; and
generating, at the coordinating node, the digital signature through interpolation over at least t+1 but fewer than 2t+1 respective signature shares.