With reference to an embedded system featuring no support for memory management, we
present a model of a protection system based on passwords. At the hardware level, our …

We consider the problem of access privilege management in a classical protection
environment featuring subjects attempting to access the protected objects. We express an …

In distributed architectures consisting of processing nodes, we associate a node chain with
each object. The node chain connects a node named in the object identifier to the nodes …

With reference to a distributed architecture consisting of sensor nodes connected in a
wireless network, we present a model of a protection system based on segments and …

Critical infrastructures require protection systems that are both flexible and efficient.
Flexibility is essential to capture the multi-organizational and state-based nature of these …

In a security environment featuring subjects and objects, we consider an alternative to the
classical password paradigm. In this alternative, a key includes a password, an object …

With reference to a protection system featuring active subjects that attempt to access
passive, typed objects, we propose a set of mechanisms supporting the distribution …

With reference to a classic protection system featuring active subjects that reference
protected objects, we approach the problem of identifying the objects that each subject can …

With reference to a distributed environment consisting of nodes connected in an arbitrary
network topology, we propose the organization of a protection system in which a set of …

Abstract Information security and data security are the processes that are mainly based on
preventing information from unauthorized access or in other words to secure information and …