Editing Biba Model (section)

The '''Biba Model''' or '''Biba Integrity Model''' developed by Kenneth J. Biba in 1975,<ref>Biba, K. J.  "Integrity Considerations for Secure Computer Systems",  [http://seclab.cs.ucdavis.edu/projects/history/papers/biba75.pdf MTR-3153], The [[Mitre Corporation]], June 1975.</ref> is a formal [[state transition system]] of [[computer security]] policy describing a set of [[access control]] rules designed to ensure [[data integrity]].  Data and subjects are grouped into ordered levels of integrity.  The model is designed so that subjects may not corrupt data in a level ranked higher than the subject, or be corrupted by data from a lower level than the subject.

In general the model was developed to address integrity as the core principle, which is the direct inverse of the [[Bell–LaPadula model]] which focuses on confidentiality.{{Ref RFC|4949|notes=no|rp=35}}