Bell-Lapadula vs. Biba, Key Elements

Here are some tips for remembering details about the Bell-Lapadula and Biba security models. The B-L model is used to provide confidentiality, whereas the Biba model is used to provide integrity. When you see the word "simple", it applies to reading. If the rules uses * or "star", the rule is talking about writing.

In summary:

• Bell-Lapadula - CONFIDENTIALITY
  
• Biba - INTEGRITY
  
• "simple" = reading
  
• * or "star" = writing