US 12,388,628 B2
Distributed network having a plurality of subnets
Jan Camenisch, Thalwil (CH); Manu Drijvers, Zürich (CH); Jens Groth, Zurich (CH); and Björn Tackmann, Zürich (CH)
Assigned to DFINITY STIFTUNG, Zürich (CH)
Appl. No. 18/014,111
Filed by DFINITY STIFTUNG, Zürich (CH)
PCT Filed Jun. 30, 2020, PCT No. PCT/EP2020/068420
§ 371(c)(1), (2) Date Dec. 30, 2022,
PCT Pub. No. WO2022/002375, PCT Pub. Date Jan. 6, 2022.
Prior Publication US 2023/0269092 A1, Aug. 24, 2023
Int. Cl. H04L 9/08 (2006.01); H04L 9/32 (2006.01)
CPC H04L 9/085 (2013.01) [H04L 9/3247 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A distributed network comprising:
a plurality of subnets; and
each of the plurality of subnets comprises a changeable set of nodes, and each node of the changeable set of nodes comprises a hardware processor and a memory, wherein the distributed network is configured to
generate for each of the plurality of subnets, by a distributed key generation protocol, an individual static verification key of a public-key signature scheme and a first set of corresponding secret key shares for a first set of nodes of the respective subnet; and
redistribute, for each of the plurality of subnets, by a secret-redistribution protocol, the secret key shares of the respective first set of secret key shares to a second set of nodes of the respective subnet, thereby creating a second set of secret key shares corresponding to the same static verification key of the respective subnet.