The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2026
Filed:
Apr. 21, 2023
Eygs Llp, London, GB;
Benjamin J. Ness, Sugar Grove, IL (US);
Anna Rittenburg, Cambridge, MA (US);
Paul J. Sussex, Chester, NJ (US);
Yair Frankel, Westfield, NJ (US);
EYGS LLP, London, GB;
Abstract
An apparatus includes a custodial mechanism that receive, from each compute device from at a quorum, an encrypted shard associated with a private key of a digital wallet and a cryptographic proof. The encrypted shard can be generated using an encryption key for the compute device. The cryptographic proof indicates that the compute device can decrypt the encrypted shard using a decryption key associated with that compute device and without revealing a value of the private key for the digital wallet. The apparatus generates, for each compute device, a cryptographic proof verification based on the encrypted shard for that compute device and an encryption witness for the private key of the digital wallet. The cryptographic proof verification indicates that the set of shards decrypted from the set of encrypted shards can be combined to reconstruct the private key.