Distributed Key Derivation for Multi-Party Management of Blockchain Digital Assets
- Resource Type
- Conference
- Authors
- Zhong, Lin; Wang, Yujue; Ding, Yong; Du, Jun; He, Kevin; Zhang, Andrew
- Source
- 2023 IEEE 29th International Conference on Parallel and Distributed Systems (ICPADS) ICPADS Parallel and Distributed Systems (ICPADS), 2023 IEEE 29th International Conference on. :715-720 Dec, 2023
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Protocols
Collaboration
Robustness
Blockchains
Blockchain
Distributed key derivation
Threshold signature
Digital assets
- Language
- ISSN
- 2690-5965
The current Single-User Key Derivation (SKD) caters to individual management of blockchain’s tree-structured assets but falls short for threshold signatures aimed at multi-party control of blockchain assets. We introduce a Distributed Key Derivation (DKD) for collaborative management of these assets. Our DKD aligns with SKD and the prevalent Decentralized Key Generation (DKG) in threshold signatures, employing the GG18 DKG [1] protocol to safely refresh child keys without affecting the parent key or other nodes. It maintains the hierarchical structure while preventing privilege escalation attacks. Experimental tests show that our DKD’s key derivation time is about 240 μs, minor compared to GG18’s DKG time.