Electronic device for user authentication, server, and control method therefor
US12015703B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 11, 2019 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Sep 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0861
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An electronic device is disclosed. The device may comprise: a storage unit in which tag information is stored; a communication unit; and a processor which: acquires a biometric code string from biometric data sensed by a sensor; transmits a first cryptogram obtained by encrypting the biometric code string and the tag information, a first masking code, and a first masking encryption code obtained by encrypting the first masking code to the server through the communication unit; when tag information contained in a second cryptogram received from the server is identified as a value acquired on the basis of the stored tag information, decrypts the second cryptogram so as to acquire a value obtained by adding a distance value and a second masking code derived from the second cryptogram; and transmits the acquired value to the server through the communication unit, wherein the distance value includes a distance value between the biometric code string and a biometric code string already stored in the server, and the second masking code includes a code acquired by the server on the basis of the first masking code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.