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Reference.org
Biba Model
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<p>The Biba Model or Biba Integrity Model developed by Kenneth J. Biba in 1975, is a formal <a href="/facts/State_transition_system/AABVmNzn">state transition system</a> of <a href="/facts/Computer_security/7E5dIy7G">computer security</a> policy describing a set of <a href="/facts/Access_control/08zE5Pz8">access control</a> rules designed to ensure <a href="/facts/Data_integrity/g3XGbKIH">data integrity</a>. 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. </p><p>In general the model was developed to address integrity as the core principle, which is the direct inverse of the <a href="/facts/Bell%25E2%2580%2593LaPadula_model/aWl1Fc7R">Bell–LaPadula model</a> which focuses on confidentiality.: 35 </p>