An authorization model for temporal data

A. Gal, V. Atluri

Research output: Contribution to journalConference articlepeer-review

31 Scopus citations


The use of temporal data has become wide-spread in recent years, within applications such as data warehouses and spatiotemporal databases. In this paper, we extend the basic authorization model by facilitating it with the capability to express authorizations based on the temporal attributes associated with data, such as transaction time and valid time. In particular, a subject can specify authorizations based on data validity or data update time, using either absolute or relative time references. Such a specification is essential in providing access control for predictive data, or in constraining access to data based on currency considerations. We provide an expressive language for specifying such access control to temporal data, using a variation of temporal logic for specifying complex temporal constraints. We also introduce an easy-to-use access control mechanism for stream data.

Original languageEnglish (US)
Pages (from-to)144-153
Number of pages10
JournalProceedings of the ACM Conference on Computer and Communications Security
StatePublished - 2000
Event7th ACM Conference on Computer Communications Security - Athens, Greece
Duration: Nov 1 2000Nov 4 2000

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications


Dive into the research topics of 'An authorization model for temporal data'. Together they form a unique fingerprint.

Cite this