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Secure re-use of private key for dynamic group of nodes

Grant US12580733B2 Kind: B2 Mar 17, 2026

Assignee

NCHAIN LICENSING AG

Inventors

John Fletcher, Thomas Trevethan, Marco Bardoscia

Abstract

Provided herein are a process, an apparatus, and an article of manufacture for confiscating a digital asset due to malicious members or malicious attacks. A process in the form of a computer-implemented method includes: i) detecting malicious activity by a malicious party, wherein the malicious party is one of the other members of the a congress; and ii) confiscating at least a portion of digital assets previously transferred to the a public group address by the malicious party. Security mechanisms disclosed herein for confiscating a digital asset leverage the use of a congress that is secured, in part, through distributed generation of private key share. The security mechanisms further allow a self-governing, decentralized group to be formed, with the threshold signature scheme allowing the group to control digital assets encumbered by a public key associated with the group.

CPC Classifications

H04L 9/0618 H04L 9/0637 H04L 9/0825 H04L 9/0833 H04L 9/3239 H04L 9/3247 H04L 9/3252 H04L 9/3255 H04L 9/50 H04L 2209/463 H04L 2209/56 H04L 9/06 G06F 21/64 G06Q 20/065 G06Q 20/36 G06Q 20/3829 G06Q 20/389 G06Q 2220/00

Filing Date

2024-03-19

Application No.

18610045

Claims

13