Device encrypted authentication method based on strong physical unclonable function and device encrypted authentication system using the same
US12395361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | May 13, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3278
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device encrypted authentication method based on a strong physical unclonable function is disclosed, including: generating β matrixes formed by random transformation of a ┌√{square root over (b)}┐-order unit matrix, such that unnecessary device expenditure is reduced; when a sensing device is identified, information to be synchronized between the sensing device and a back-end server is transmitted in the registration phase, such that an attacker cannot obtain confidential information in the encryption phase, and the attacker cannot traverse or completely crack all these possible combinations in a short time; even if the attacker intercepts some CRPs, it is scarcely possible that data sent by the sensing device matches the CRPs collected by the attacker, and with the increase of the number b of bits of challenges and the quick convergence to 0, the accuracy of random guessing is only 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.