Key device, key cloud system, decryption method, and program
US10686604B2 · kind B2 · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2014 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Oct 10, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1097
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Registered network-based identification corresponding to any of networks is stored in a key device 12. A terminal device 11 sends ciphertext and network-based identification to the key device 12, using a network. The key device 12 receives the sent ciphertext and network-based identification and outputs response information corresponding to a decrypted value of the ciphertext when the network-based identification corresponds to the registered network-based identification. The terminal device 11 obtains the decrypted value from the response information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.