1. Secure Information Sharing

2. Role-Based Access Control USERSROLES SESSIONS OPSOBS PRMS session_rolesuser_session User Assignment (UA) Permission Assignment (PA) many-to-many relationship one-to-many relationship Gives roles activated by the session User is associated with a session file system operations: read, write and execute DBMS operations: Insert, delete, append and update

3. PKC Vs AC PKC binds a subject (DN) to a public key AC has no public key but binds permissions (attributes) to an entity

4. System Overview

5. SIS Message Flow

6. Control Flow

7. Results