Affiliations: Jindal School of Management, University of Texas at Dallas, Richardson, TX, USA. E-mail: firstname.lastname@example.org | Department of Systems Engineering and Engineering Management, College of Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong | Department of Computer Science, University of Texas at Dallas, Richardson, TX, USA. E-mail: email@example.com | Department of Economics and Finance, Texas A&M University-Commerce, Commerce, TX, USA. E-mail: firstname.lastname@example.org
Note:  Corresponding author: SingRu Hoe, Department of Economics and Finance, Texas A&M University-Commerce, P.O. Box 3011, Commerce, TX 75429, USA. E-mail: email@example.com
Abstract: Ensuring appropriate user access to information is a key objective of information security on a computer network. We propose a solution in which an individual user is assigned a universal trust score determined by applying the same model financial institutions use to determine an individual's credit risk score. This universal trust score is combined with the Bell–La Padula model to control the individual's access to information across multiple assured information sharing systems.
Keywords: Scoring, trust-based access control, assured information sharing, Bell–La Padula model