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

Claim 16:
17. 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 first node, wherein the digital signature is generated by joint participation of at least t+1 of the nodes in the set, where t>1, the method including a signature phase that comprises:
calculating, at the first node, a signature share without receiving any communications relating to generation of the digital signature from other nodes of the set during the signature phase, other than a coordinating node; and
transmitting the signature share from the first node to the coordinating node,
whereby the coordinating node generates the digital signature through interpolation of respective signature shares received from the at least t, but fewer than 2t, of the nodes in the set.