Method for enrolling data in a base to protect said data
US9710631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2015 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/53
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An enrollment method for enrolling biometric data in a database. Each data item includes an information vector on a biometric feature, and a mask vector, determining those bits of the information vector to be taken into account for data comparison. The method includes the application of permutation to the bits of the vectors. The vectors using an enrollment code, the permutation being applied to the encoded vectors. In the encoded vectors, the mean weight of the representations of all the bits of the mask vector is constant or statistically constant irrespective of the values of the bits of the mask vector; and least one bit is drawn randomly following the same law of distribution as the bits of the information vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.