Bell-LaPadula Model
Bell-LaPadula Model
- The Bell-LaPadula Model is used to achieve Confidentiality
- Developed for the DoD, assumes a strict hierarchy with clearly-defined roles and responsibilities
- "no write down, no read up"
- No write down: When someone creates content, it can only be access by people at their authorization level or above
- e.g., Documents created at Secret level could be read by people with Top Secret clearance, but not Confidential clearance
- No read up: You are only allowed to read content at your authorization level or lower
- e.g., someone with Secret clearance could read Confidential documents, but not Top Secret documents
- No write down: When someone creates content, it can only be access by people at their authorization level or above
Metadata
Sources
Bell–LaPadula model - Wikipedia