What does Lattice-Based Access Control rely on for authorization?

Lattice-Based Access Control (LBAC) relies on security labels that indicate both the user's clearance and the classification of the information being accessed. This model utilizes a lattice structure that defines the relationships between different levels of access permissions. Each user is assigned a security label that reflects their clearance level, while data objects also have classification labels indicating the sensitivity level of the information.

The interaction between a user's security label and the data object's classification determines whether access is granted, ensuring that users can only access information that aligns with their level of trust and clearance. This method is particularly effective in environments where strict security protocols are necessary, such as government and military applications, enabling fine-grained access control based on sensitivity and need-to-know criteria.

Other options like user roles, IP addresses, or physical location do not provide the specific structural framework of access control that defines LBAC. While user roles can be a component of access control systems, they do not capture the clearance and classification paradigm central to Lattice-Based Access Control.