Secure incremental updates to hierarchicaly structured information
US8275745B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Nov 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2145
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for performing an incremental update to a set of hierarchically structured information that do not expose the structure and content of the hierarchically structured information to unauthorized parties. The present techniques include encrypting the hierarchically structured information such that an arrangement of nodes and corresponding data of the hierarchically structured information is not exposed and each node includes a corresponding node identifier that is not encrypted and updating the hierarchically structured information by referring to the nodes using the node identifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.