Methods and apparatus for credential validation
US7571472B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | May 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/32
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A secure credential validation compares stored and received modified credentials, e.g., biometric credentials, such that the validating system does not have access to the unmodified credentials. A capture system and a credential validation system are operatively coupled to a network (e.g., the Internet). The credential validation system is configured to store a set of modified stored credentials associated with the principal, receive a set of modified received credentials, and perform a credential validation procedure to validate the modified received credentials, wherein the credential validation procedure performs a one-way consistency test to compare the modified stored credentials and the modified received credentials: The credential validation procedure employs one or more similarity measures, e.g., a weighted quorum of exact matches, a discrete N-ball (or “N-shell”) intersection, or a client-based algorithm with encryption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.