Method for generating standard file based on steganography technology and apparatus and method for validating integrity of metadata in the standard file
US8769292B2 · kind B2 · utility
1Cited by
3References
9Claims
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Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Sep 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for validating integrity of metadata in a standard file includes: a metadata acquiring unit for acquiring metadata from a protected file; an integrity evidence value acquiring unit for acquiring an integrity evidence value from a file or a database; a secret information extracting unit for extracting secret information of a file data; and a metadata integrity validating unit for checking if the metadata is correct by using the acquired metadata, the acquired integrity evidence value, and the extracted secret information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.