Invention Application
- Patent Title: DISTRIBUTED PRIVATE KEY RECOVERY
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Application No.: PCT/US2022/036528Application Date: 2022-07-08
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Publication No.: WO2023009294A1Publication Date: 2023-02-02
- Inventor: NAGARAJA, Vinjith , XU, Minghua , PATEL, Karankumar Hiteshbhai , GU, Shengfei , PATRANABIS, Sikhar , BADRINARAYANAN, Saikrishna , MUKHERJEE, Pratyay , RINDAL, Peter , JIN, Shan
- Applicant: VISA INTERNATIONAL SERVICE ASSOCIATION
- Applicant Address: P.O. BOX 8999
- Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
- Current Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
- Current Assignee Address: P.O. BOX 8999
- Agency: RACZKOWSKI, David B. et al.
- Priority: US17/390,649 2021-07-30
- Main IPC: H04L9/08
- IPC: H04L9/08
Abstract:
A method performed by a user device is disclosed. The method comprising generating a secret and measuring a biometric template of a user operating the user device. The method then generates a plurality of secret shares of the secret and of the biometric template. The user device then transmits the secret shares of the secret and of the biometric template to a plurality of recovery devices. After, the user device may then initiate a recovery of the secret and measure a biometric measurement of the user. Data of the biometric measurement may be transmitted to the plurality of recovery devices, where the recovery devices perform a partial computation. The user device use the plurality of partial computations to determine a match between the biometric template and the biometric measurement. If the two biometrics match, the user device can reconstruct the secret using shares of the secret from the recovery devices.
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