28 search results - page 3 / 6 » Generalized Key Delegation for Hierarchical Identity-Based E... |
SACMAT
2004
ACM
14 years 1 months ago
2004
ACM
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 ...
EUROCRYPT
2010
Springer
13 years 12 months ago
2010
Springer
We construct an efficient identity based encryption system based on the standard learning with errors (LWE) problem. Our security proof holds in the standard model. The key step in...
CTRSA
2010
Springer
14 years 1 months ago
2010
Springer
A Hierarchical Identity Based Encryption (HIBE) system is anonymous if the ciphertext reveals no information about the recipient’s identity. create it. While there are multiple c...
ACNS
2007
Springer
14 years 2 months ago
2007
Springer
We present two transforms to acquire chosen ciphertext security from tag based techniques. The first one requires the separability of underlying primitives. By separability, info...
CCS
2009
ACM
14 years 9 months ago
2009
ACM
Denial of Service (DoS) attacks are serious threats for network societies. For dealing with DoS attacks, Jakobsson and Juels first proposed the notion of useful client puzzles (UC...