Bell-La Padula security model

(redirected from Bell-LaPadula model)
Also found in: Wikipedia.

Bell-La Padula security model

A formal, mathematical description of access control that describes how security can be maintained by comparing the clearance of a subject with the classification of an object to determine authorization. In general, such mandatory access control systems enforce the rule that no one reads information from a higher level of classification, and no one writes information to a lower level of classification. The original work was by D. Bell and L. La Padula in the 1970s. For more information, read http://csrc.nist.gov/publications/history/bell76.pdf.
References in periodicals archive ?
The Bell-LaPadula Model is a confidentiality model for system security and has been used by the United States military for years (Bell & LaPadula, 1973, 1975).
The next section discusses what categories (Security Clearance, Classification) are in the Bell-LaPadula model. Then, it attempts to model a secured database network using a privileged group who may take four different actions in a sequence and a public group who has only two different "read" privileges.
One of them is the Bell-LaPadula Model which has been used in the military (Bishop, 2003).
In order to apply semi-Markov chains to the simplified secured database network, all states in the proposed model consist of all the possible combinations of (Security Clearance, Classification) pairs in the Bell-LaPadula model. A detailed calculation of the state transitions can be referred in the paper by Shing et al.
There is no hierarchical ordering of labels within the system such as there is in the Bell-LaPadula model.(1)
(1) In most implementations of the Bell-LaPadula model, resource labels have two components to them: an ordered sensitivity level and zero or more compartment names.
Bell-LaPadula Model and Markov Chain Model are used for supply chain networks in the previous literature.
(2006) proposed the application of Bell-LaPadula model in the design of a supply chain network.
For example, Bell-LaPadula Model has been used in military and is originally designed for modeling confidentiality in information security (Bishop, 2003).