Information Flow Control with Decentralized Labeling Model in Information Security

  • Veli Hakkoymaz Yildiz Technical University, Computer Engineering Department, Istanbul, Turkey
  • Cigdem Bakir Yildiz Technical University, Computer Engineering Department, Istanbul, Turkey
Keywords: Label model, data confidentiality, path compression, distributed databases, data privacy


Data security aims to prevent the use, modification, and spread of data by unauthorized people. In this study, our purpose was to provide data privacy and confidentiality with information flow control in distributed databases. In particular, a decentralized label model was developed that maintained confidentiality, including privacy, with data flow control. This model consists of an actor, an object, and a label. The owners of the objects are actors, and they need to share their data objects with others. Actors label the data objects and then send them out. A label contains the policy statements of data security issued by each of the owners. Each owner sets its own security and privacy policy independently of the other owners. The confidentiality of data in unsecured transport channels is ensured for all the actors in the system by means of labels while the data are in flow. Data objects are spread and shared securely among actors within unsecured environments. In addition, with the path compression, the long node chain that is formed while the data objects are passing between the source node and the destination is broken, so that the objects are retrieved fast, and the cost of access is reduced. This result was shown experimentally by modeling the distributed environment.


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Author Biographies

Veli Hakkoymaz, Yildiz Technical University, Computer Engineering Department, Istanbul, Turkey

Veli Hakkoymaz received B.S. degrees in computer engineering from Hacettepe University, in 1987 and in Computer Science from University of Pittsburgh (PA), In 1992, in CWRU (OH) in 1997. In 2011, he received the title of Associate Professor at Yildiz Technical University. He works Yildiz Technical University as Associate Professor since 2011. His research interests include database management systems, computer architecture, operating systems and distributed systems.

Cigdem Bakir, Yildiz Technical University, Computer Engineering Department, Istanbul, Turkey

Cigdem Bakir is a Ph.D. student at the University of Yildiz Technical University since 2014. She received B.S. degrees in computer engineering from the University of Sakarya, in 2010 and the M.S. degree in computer engineering from Yildiz Technical University, İstanbul, in 2014. She worked a Research Assistant at Yildiz Technical University and Igdir University. She works Erzincan Binali Yildirim University since 2020. Bakir is currently completing a doctorate in Computer Science at the University of Yildiz Technical at Istanbul. Her Ph.D. research interests include information security, distributed database, and computer networks.


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