Optimized enforcement of fine grained access control on data
US10102355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2014 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Sep 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for efficient cursor sharing to enforce fine-grained access control are provided. In one technique, the authorization context of a database statement is stored in (or in association with) a corresponding cursor. The authorization context indicates multiple authorization results, each of which indicates whether a user (or role) associated with the database statement is allowed to access a different data set of multiple data sets that the database statement targets. An authorization context of an incoming database statement may be compared to the authorization context of a cursor in a single comparison to determine whether the authorization contexts match. If so, then the cursor may be shared. In another technique, one or more normalizations are applied to a cursor predicate that is generated based on the authorization context of a database statement. The one or more normalizations may result in removing one or more predicates from the cursor predicate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.