Systems and methods for creating seed and master keys for blockchain wallets from user biometrics
US12401516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2023 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Mar 14, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q2220/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are directed to optimizing a security and recoverability trade-off generally associated with cryptocurrency master key storage. Exemplary embodiments provide a biometrically derived cryptographic seed using a measurement of one or more scale invariant biometric attributes associated with a user. The measured user biometric data is then processed into a repeatable biometric identifier and formatted into a (biometric) cryptographic seed, for derivation of a master extended private key, which may be stored in an HD wallet or used dynamically to conduct a blockchain transaction. The biometric seed and master key generation process may be facilitated by a mobile application responsive to a readout of biometric data from sensors integrated/associated with the mobile device. The captured biometric data may be cryptographically combined with a user-inputted password and/or an authentication data record wirelessly retrieved from an OTP card, to generate a cryptographic seed with greater security attributes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.