Cryptographic operation method, working key creation method, cryptographic service platform, and cryptographic service device
US11128447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Nov 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cryptographic service device includes: a processor; and a memory storing instructions executable by the processor, wherein the processor is configured to execute the instructions to operate as a registration module, a working key creation module, and a cryptographic operation calling module. The registration module is configured to call a primary security module to generate a master key for a newly added secondary security module. The working key creation module is configured to receive a working key creation request of a business system, call the primary security module to generate a working key for the business system, and acquire a working key ciphertext. The cryptographic operation calling module is configured to receive a cryptographic operation request of the business system; call a target security module, and obtain an operation result of the target security module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.