A secure two phase locking protocol

Author

David, Rasikan ; Son, Sang H.

Author_Institution

Dept. of Comput. Sci., Univ. of Virginia, Charlottesville, VA, USA

fYear

1993

fDate

6-8 Oct 1993

Firstpage

126

Lastpage

135

Abstract

A secure concurrency control algorithm must, in addition to maintaining consistency of the database, be free from covert channels arising due to data conflicts between transactions. The existing secure concurrency control approaches are unfair to transactions at higher access classes. A secure two-phase locking protocol that is shown to be free from covert channels arising due to data conflicts between transactions and that provides reasonably fair execution of all transactions, regardless of their access class, is presented. A description of the protocol for a centralized database system is given, and the extensions that need to be provided in a distributed environment are discussed

Keywords

access protocols; concurrency control; data integrity; distributed databases; security of data; access class; centralized database system; covert channels; data conflicts; secure concurrency control algorithm; secure two phase locking protocol; Access control; Access protocols; Computer science; Concurrency control; Data security; Database systems; Information security; Timing; Transaction databases; US Department of Energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Reliable Distributed Systems, 1993. Proceedings., 12th Symposium on

Conference_Location

Princeton, NJ

Print_ISBN

0-8186-4310-2

Type

conf

DOI

10.1109/RELDIS.1993.393466

Filename

393466