User permission check system
US10177918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2017 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | May 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0428
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user permission check system with less CPU throughput while ensuring non-repudiation is provided. In order to solve the above-described problem, in the present invention firstly, a MAC function that does not require a CPU to have high processing power is utilized. Additionally, a message is encrypted with a plurality of secret keys and the plurality of keys are distributed to a plurality of servers to make them have the keys in order to ensure validity of the message as a proof of non-repudiation. Subsequently, each server proves the validity of the message within its own range and the validity of the message is ensured by aggregating these individual results, thereby implementing the non-repudiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.