Privacy preserving query method and system for use in federated coalition networks
US9667530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Dec 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In at least one embodiment, a method and a system include a node potentially having information responsive to an information request distributed into, for example, a federated coalition network where the node receives at least one information request packet, conducts a search of information at the node to determine if requested information is present, when the requested information is present, then the node sends an acknowledgement to a requesting node, linear network codes the requested information into m packets where m is greater than or equal to k, which is the number of packets needed to be received by the requesting node to reconstruct the requested information, selects multiple paths between the node and the requesting node such that no third party will see more than k−1 different packets, and transmits the m packets distributed over the selected paths. In a further embodiment, the method and system include operation of the network to have the capability to provide responsive information in a protected way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.