Refreshing keys in a computing environment that provides secure data transfer
US11502834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Jun 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1097
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Aspects of the invention include detecting that a rekey timer has expired. The rekey timer is one of a shared key rekey timer for a current shared key between the first node and a second node, and a session key rekey timer for a session key used in a secure communication between a channel on the first node and a channel on the second node. The session key was created based on the current shared key and is used for encrypting data in the secure communication. Based on the rekey timer being the shared key rekey timer, a new shared key is obtained and stored as the current shared key. Based on the rekey timer being the session key rekey timer, a new session key that is based at least in part on the current shared key is obtained and used in the secure communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.