Role-based cascaded delegation
Roberto Tamassia, Danfeng Daphne Yao, William H. Winsborough · 2004
We propose role-based cascaded delegation, a model for delegation of authority in decentralized trust management systems. We show that role-based cascaded delegation combines the advantages ofrole-based trust management with those of cascaded delegation. We also present an efficient and scalable implementation of role-based cascaded delegation using Hierarchical Certificate-Based Encryption, where the authentication information for an arbitrarily long role-based delegation chain is captured by one short signature of constant size. This implementation also provides strong privacy protection for delegation participants.