Name
Abstract | ||
|---|---|---|
Self-healing key distribution schemes allow group managers to broadcast session keys to large and dynamic groups of users over unreliable channels. Roughly speaking, even if during a certain session some broadcast messages axe lost due to network faults, the self-healing property of the scheme enables each group member to recover the key from the broadcast messages he/she has received before and after that session. Such schemes are quite suitable in supporting secure communication in wireless networks and mobile wireless ad-hoc networks. Recent papers have focused on self-healing key distribution, and have provided definitions and constructions. The contribution of this paper is the following: We analyse current definitions of self-healing key distribution and, for two of them, we show that no protocol can achieve the definition. We show that a lower bound on the size of the broadcast message, previously derived, does not hold. We propose a new definition of self-healing key distribution, and we show that it can be achieved by concrete schemes. We give some lower bounds on the resources required for implementing such schemes i.e., user memory storage and communication complexity. We prove that some of the bounds are tight. |
Year | DOI | Venue |
|---|---|---|
2004 | 10.1007/978-3-540-27836-8_22 | Lecture Notes in Computer Science |
Keywords | Field | DocType |
key distribution,lower bound,communication complexity,secure communication,wireless network,wireless ad hoc network | Mobile computing,Key distribution,Wireless network,Broadcasting,Computer science,Computer security,Cryptography,Communication complexity,Wireless ad hoc network,Secure communication,Distributed computing | Conference |
Volume | ISSN | Citations |
3142 | 0302-9743 | 17 |
PageRank | References | Authors |
1.06 | 3 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Carlo Blundo | 1 | 1901 | 229.50 |
| Paolo D’Arco | 2 | 88 | 6.04 |
| Alfredo De Santis | 3 | 4049 | 501.27 |