Method and system for performing an untraceable secret matching
US7945044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2008 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Jan 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Performing an untraceable secret matching between a first credential associated with a first property of a first user and a second credential associated with a second property of a second user includes receiving the first credential, receiving a matching reference formed so the first user can detect a matching of the first property with a remote property from a credential of another user, supplying a first nonce value to the second user, receiving a hidden version of the second credential from the second user formed by the second user on the basis of the second credential, the first nonce value supplied by the first user and a random value locally generated on a side of the second user, and performing the matching by combining the first credential and the received hidden credential with the first nonce value and comparing the combination with the matching reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.