Key management in tree shaped hierarchies

• Published in: Information security journal. Vol. 27; no. 4; pp. 205 - 213
• Main Author: Lopriore, Lanfranco
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 04.07.2018; Taylor & Francis Ltd
• Subjects: Access control; Computer networks; cryptographic key; Cybersecurity; Distributed processing; Hierarchies; hierarchy; Object oriented programming; one-way function; protection

We refer to an access control system based on subjects and objects. Subjects are active entities, e.g. processes, while objects are passive entities, e.g. messages exchanged between the nodes of a distributed computing environment. The system is partitioned into security classes organized into a tre...