What is the difference between BLP and Biba?

Unlike the Biba Integrity Model, which outlines specific rules aimed at safeguarding data integrity, the Bell–LaPadula model takes a different approach. It focuses on preventing unauthorized access to sensitive information, thereby maintaining its confidentiality.

The Bell–LaPadula model is primarily concerned with ensuring data confidentiality and granting controlled access to classified information. This model sets the foundation for securing sensitive data within an information system.

In the context of this formal model, the components of an information system are categorized into two distinct entities: subjects and objects. Subjects represent active entities, such as users or processes, that request access to data.

Objects, on the other hand, represent passive entities that store or contain data. These could include files, databases, or other forms of information repositories.

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