Data verification by challenge
US8200969B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Sep 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99956
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An embodiment of the invention provides an apparatus and method for data verification by challenge. The apparatus and method perform acts including: sending a hash value of a data piece in a sender; if the hash value matches a stored hash value in a receiver, then sending a challenge from the receiver to the sender; sending a sample data set from the data piece in the sender, wherein the sample data set is determined by a window that is identified by the challenge; comparing the sample data set with a data set that is overlapped by the window for a stored data piece in the receiver; and performing a response based on the comparison of the sample data set and the stored data set that is overlapped by the window for the stored data piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.