Patent ID: 11870894
Assignee: NCHAIN LICENSING AG
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A computer-implemented method comprising:
storing an encryption public key that is associated with a group of nodes, each node in the group associated with a private key share, the private key shares associated with a threshold private key reconstruction scheme for the group to allow an encryption private key associated with the encryption public key to be determined from at least a threshold of the private key shares, wherein the private key shares are released by the group of nodes when a predetermined or specified event is detected by at least one node in the group of nodes; and
iteratively obtaining a plurality of indicators provided by a plurality of nodes of the group, each of the indicators representing one of an encryption private key share or a dummy signal; and identifying the encryption private key by iteratively:
selecting a subset of the indicators;
calculating a possible shared secret; and
evaluating each possible shared secret against the encryption public key to determine whether the possible shared secret is the encryption private key, wherein the method further comprises identifying nodes of the group that provided an indicator representing an encryption private key share in a defined window of opportunity; and cooperatively generating a valid signature for a transaction to transfer one or more digital assets to one or more of the identified nodes.