Updating keys for use in authentication
US9306741B1 · kind B1 · utility
33Cited by
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20Claims
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Assignee
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Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jan 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is used in updating keys for use in authentication. A cryptographic operation is performed based on a stored representation of a higher-level key. The cryptographic operation results in a derived key. The derived key is used for authentication. A key update operation is applied to replace the derived key after authentication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.