System and method for identity decisions and invalidation
US7756841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Feb 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for identity decisions and invalidation. Modified objects (e.g., files, executables, etc.) are flagged for reevaluation. Privileges associated with the object are only persisted if the modifications are determined to be authorized (e.g., updates and patches). In one embodiment, a tagging system registers to be notified of all writes, renames, truncations, moves, deletions, or any other relevant modifications to objects. If the tagging system detects a modification operation targeting the object, it invalidates all identity decisions cached with the object. The next time the object runs, the system does not recognize the object and it is forced to reevaluate its identity. Thus, patching and other write operations are still permitted, but the system detects the changed object and reevaluates the identity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.