Both Biba and Clark-Wilson models are designed to enforce data integrity, not confidentiality.
✅ D. Biba Model
Focuses solely on data integrity.
Ensures data is not improperly modified.
Rules:
No write up (prevents less trusted subjects from corrupting more trusted data)
No read down (prevents subjects from reading less trusted data)
✅ B. Clark-Wilson Model
Focuses on commercial integrity, data consistency, and preventing fraud.
Uses:
Well-formed transactions
Separation of duties
Auditing mechanisms
C. Bell-LaPadula:
❌ Focuses on confidentiality, not integrity. Known for rules like No Read Up, No Write Down.
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Drackos2
3 weeks ago