RBAC, or Role-Based Access Control, is a model for controlling access to resources based on the roles that users have within an organization. In this model, access to resources is determined by the roles that a user has been assigned, and the permissions that have been granted to those roles. This means that users are only able to access the resources that they need to perform their job functions, and are not able to access resources that are outside of their roles.
ABAC, or Attribute-Based Access Control, is a model for controlling access to resources based on the attributes of users and the resources that they are trying to access. In this model, access to resources is determined by evaluating the attributes of the user and the resource against a set of access control policies. This allows for a more fine-grained control over access to resources, as access can be granted or denied based on a wide range of attributes, such as the user’s location, the time of day, or the sensitivity of the resource.
Overall, the main difference between RBAC and ABAC is that RBAC is based on the roles that users have within an organization, while ABAC is based on the attributes of users and resources. RBAC is typically simpler to implement and manage, but ABAC offers more flexibility and granularity in controlling access to resources.