Sketch management system, method, apparatus, program recording medium
The sketch management system securely generates new sketches using differential data processing, addressing the challenge of biometric updates by maintaining confidentiality and security.
JP2026090914APending Publication Date: 2026-06-03NEC CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NEC CORP
- Filing Date
- 2024-11-22
- Publication Date
- 2026-06-03
AI Technical Summary
Technical Problem
Existing systems struggle to efficiently manage and update sketches corresponding to biometric information due to changes or updates in user biometric data, compromising security and data confidentiality.
Method used
A sketch management system that generates new sketches using differential data processing, ensuring security by maintaining confidentiality of original biometric and data information through error-correcting codes and key sharing protocols.
Benefits of technology
Ensures secure generation of new sketches while keeping original biometric and data information confidential, preventing leakage and unauthorized access.
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Smart Images
Figure 2026090914000001_ABST
Abstract
This system provides a way to generate new sketches related to registered sketches while ensuring security. [Solution] The system comprises a first sketch generation device (first device) and a second sketch generation device (second device). The first device generates a third sketch using newly acquired first biometric information and generated second data, with respect to the first sketch which has been generated and pre-registered using first data and first biometric information. Then it acquires second biometric information and generates a fourth sketch using the second data. The second device reconstructs differential data based on the third sketch and the first sketch acquired from the first device. If the difference between the first biometric information and the first biometric information is within a predetermined range, the differential data is the difference between the first data and the second data. The second device acquires a fourth sketch from the first device and generates a second sketch using the fourth sketch and the differential data.
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