Storage controller conditioning host access to stored data according to security key stored in host-inaccessible metadata
US6446209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Apr 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/1077
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage controller conditions host access to stored data objects upon host provision of a proposed key with matching or other prescribed relation to a security key stored in host-inaccessible metadata that is associated with the stored data object. The security key may be established upon writing the data or allocating storage space, for example. This enables the storage controller or device to be attached directly to a network without compromising security or having to add an intermediate server to perform security functions. Another implementation concerns sound recording playback devices that only play sound tracks for which the user has purchased an appropriate security key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.