Method of performing key exchange for security operation in storage device and method of performing authority transfer in storage device using the same
US11863664B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2021 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Jun 21, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for performing key exchange for a security operation in a storage device includes generating, by a trusted third party (TTP), a first certificate based on a first user ID and first public key and generating a second certificate based on a second user ID and second public key. While the storage device is accessed by the first user ID, a first verification is performed on the second certificate based on a third certificate. When the first verification is successfully completed, a ciphering key is derived based on a first private key and the second public key. While the storage device is accessed by the second user ID, a second verification is performed on the first certificate based on the third certificate. When the second verification is successfully completed, the ciphering key is derived based on a second private key and the first public key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.