公开(公告)号：US20240089091A1

公开(公告)日：2024-03-14

申请号：US17931789

申请日：2022-09-13

Applicant: Capital One Services, LLC

Inventor： Dexter FERGUSON ,  Christian WISKUR

IPC: H04L9/08 ,  H04L9/00

CPC classification number: H04L9/0838 ,  H04L9/50 ,  H04L2209/46

Abstract: Methods and systems are disclosed herein for cryptographically secured transfer of an item. In some embodiments, the system may cause generation of multiple key shares of a private key from which a blockchain address on a blockchain is derived. The system may generate a cryptographic representation of a physical item to be transferred from the first user to the second user, the physical item corresponding to the first item. The system may cause a first amount of the first item to be transferred to the blockchain address. The system may obtain a candidate cryptographic representation from the second user. The system may generate, based on the candidate hash matching the hash of the feature vector representing the physical item, a signed message using a partial signature of the second user and another partial signature derived from the third key share.