Protected resource access control utilizing intermediate values of a hash chain
US8990905B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jan 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A processing device comprises a processor coupled to a memory and is configured to associate intermediate values of a hash chain with respective access control intervals, and to provide a given one of the intermediate values to user in order to allow the user to access a protected resource in the corresponding access control interval. A final value of the hash chain is provided to an access control module associated with the protected resource, and an initial value of the hash chain is stored in a secure manner. The hash chain may be generated by applying a one-way hash function to the initial value a designated number of times in order to obtain the intermediate values and the final value. The protected resource may comprise, for example, a storage array or other processing platform component, with the intermediate values controlling service technician access to that component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.