Self-identification of tokens
US8452965B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Apr 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6272
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique of protecting a datum within a set of sensitive data is presented. In this technique, the datum includes a first set of bits satisfying a first set of constraints, and a computer receives the set of sensitive data from an authorized client. The technique involves producing a token corresponding to the datum, the token including a second set of bits distinct from the first set of bits, the second set of bits satisfying a second set of constraints, the second set of constraints being a superset of the first set of constraints. The technique further involves storing the datum and the corresponding token. The technique further involves sending the token to the authorized client, the authorized client enabled to perform, using the second set of bits, a verification that the token satisfies the second set of constraints, the verification being performed apart from the database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.