Chip, private key generation method, and trusted certification method
US11722300B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Feb 22, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Aug 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A chip includes a security core module. The security core module includes a security core and a memory. The security core module prevents access of an external module that is inside the chip and that is other than the security core module, and the security core module prevents access of an external device outside the chip. The security core is configured to generate a layer 1 public key and a layer 1 private key based on a hash of a first root public key and a UDS of the chip stored in the memory; and the memory is configured to store the layer 1 private key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.