The official PGP user's guide
Iolus: a framework for scalable secure multicasting
SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Secure group communications using key graphs
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Mitigating routing misbehavior in mobile ad hoc networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Implementing a distributed firewall
Proceedings of the 7th ACM conference on Computer and communications security
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Revocation and Tracing Schemes for Stateless Receivers
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
The LSD Broadcast Encryption Scheme
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Self-Healing Key Distribution with Revocation
SP '02 Proceedings of the 2002 IEEE Symposium on Security and Privacy
LHAP: A Lightweight Hop-by-Hop Authentication Protocol for Ad-Hoc Networks
ICDCSW '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Efficient Authentication and Signing of Multicast Streams over Lossy Channels
SP '00 Proceedings of the 2000 IEEE Symposium on Security and Privacy
Efficient self-healing group key distribution with revocation capability
Proceedings of the 10th ACM conference on Computer and communications security
Almost optimal hash sequence traversal
FC'02 Proceedings of the 6th international conference on Financial cryptography
| Hi-index | 0.00 |
In this paper, we propose to enforce network access control in Mobile Ad Hoc Networks (MANETs) using cryptographic techniques. In the proposed approach, packets are authenticated by means of a network-wide symmetric (session) key. Because nodes are mobile and communication paths may change rapidly, timely distribution of new session keys is challenging (particularly if keys change frequently). Nodes wishing to communicate may therefore hold different session keys, which must somehow be synchronized. We present a fully distributed key synchronization method based on stateless group key distribution, and localized packet retransmission. If nodes A and B wish to communicate securely over a path P, all nodes on this path must synchronize keys with their immediately adjacent neighbors in the path. Any node which is unable to synchronize keys will not be allowed to forward packets. Simulations and a functioning prototype demonstrate the proposed system is practical and effective.