Separation of Duty (SoD) is a fundamental security principle that ensures that critical tasks or
functions are divided upon multiple users in order to prevent fraud. The topic of SoD spans …

Various types of security goals, such as authentication or confidentiality, can be defined as
policies for service-oriented architectures, typically in a manual fashion. Therefore, we foster …

Demonstrating the safety of a system (ie. avoiding the undesired propagation of access
rights or indirect access through some other granted resource) is one of the goals of access …

Today more and more security-relevant data is stored on computer systems; security-critical
business processes are mapped to their digital counterparts. This situation applies to …

Role-based access control (RBAC) is recognized as an excellent model for access control in
large-scale networked applications. Formalization of RBAC in a logical approach makes it …

Security requirements deal with the protection of assets against unauthorized access
(disclosure or modification) and their availability to authorized users. Temporal constraints of …

Authorisation constraints can help the policy architect design and express higher-level
security policies for organisations such as financial institutes or governmental agencies …

Role based access control (RBAC) model is naturally suitable to organizations where users
are assigned organizational roles with well-defined privileges. Nowadays, many …

Considering the current expansion of IT-infrastructure, the security of the data inside this
infrastructure becomes increasingly important. Therefore, assuring certain security …

The stringent security requirements of organisations like banks or hospitals frequently adopt
role-based access control (RBAC) principles to represent and simplify their internal …