Method for encrypting a plurality of data in a secure set
US9356786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/53
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A server-implemented method encrypting at least two pieces of indexed data as lists of elements, each element belonging to a finite set of indexed symbols on an alphabet. The data is encrypted to form a protected set, including: the server randomly generates, for each datum, a corresponding encoding function; if at least one element that constitutes a datum is the symbol of the alphabet, the server determines the image of the symbol of the alphabet via the encoding function corresponding to the datum to obtain a codeword coordinate and adds the codeword coordinate to an indexed set corresponding to the element of the alphabet; then the server completes the indexed set with error-inducing points; the server randomly reindexes the elements of the indexed set corresponding to the symbol of the alphabet; and the server adds the indexed set to the protected set. The method can identify an individual.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.