Certificate renewal method, apparatus, system, medium, and device
US11483165B2 · kind B2 · utility
1Cited by
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20Claims
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Assignee
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Key dates
| Filing date | Jun 25, 2019 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Dec 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A certificate renewal method includes a satellite certification authority (CA) receiving, from a central CA, permission configuration information including permission information for indicating that only renewal processes are executed, receiving a renewal request transmitted by a device, judging whether a renewal condition is satisfied, generating a new device certificate via a signing procedure implemented using a private key corresponding to a level 3 certificate of the satellite CA in response to determining that the renewal condition is satisfied, and transmitting the new device certificate to the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.