archives

A Multilevel Secure Relational Database Model with key-polyinstantiation


Home 

About 

Browse 

Search 

Register 

Subscriptions 

Deposit Papers 

Help
    

Stakhanova , Natalia and Dhingra, Ruchi (2002) A Multilevel Secure Relational Database Model with key-polyinstantiation. Technical Report 06-12, Department of Computer Science, Iowa State University.

Full text available as:Adobe PDF

Abstract

In multilevel security there is a hierarchy of users or user-levels, in which each user has its own version of information. Most of the existing multilevel secure (MLS) data models support u-polyinstantiation. The only model that supports key-polyinstantiation was proposed by Gadia et al[GS1998, JS1990, CG1995], but work on it remains incomplete. It is important for a model to support key-polyinstantiation because in the real world it is often the case that an object varies in its key value(s) (such as name, SSN, identification number etc.) when it occurs in the beliefs of different users. Thus having a unique key across beliefs limits our ability to accurately model the real world. Our work focuses on the relational database model, supports key-polyinstantiation and has semantics defined in an SQL-like format since most database users are experienced in using SQL and hence such semantics are intuitive and easy to understand.

Subjects:Computer Applications: GENERAL
ID code:00000423
Deposited by:Natalia Stakhanova on 19 May 2006



Contact site administrator at: ssg@cs.iastate.edu