By J. J. Garcia-Luna-Aceves (auth.), Violet R. Syrotiuk, Edgar Chávez (eds.)
This e-book constitutes the refereed court cases of the 4th foreign convention on Ad-Hoc Networks and instant, ADHOC-NOW 2005, held in Cancun, Mexico in October 2005.
The 27 revised complete papers provided including the abstracts of two invited talks have been rigorously reviewed and chosen from over a hundred submissions. The papers speak about architectures, protocols, and algorithms for: entry keep watch over, scheduling, advert hoc and sensor networks analytic tools and modelling for functionality review, characterization, optimization, auto-configuration, incentives and pricing, place understanding, discovery, dependence, and administration, mesh networks, new purposes, energy administration, strength regulate, and energy-efficiency, quality-of-service, source allocation, multimedia, routing (unicast, multicast, etc.), protection and privateness, carrier discovery, structures and testbeds, instant web, and knowledge management.
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Additional info for Ad-Hoc, Mobile, and Wireless Networks: 4th International Conference, ADHOC-NOW 2005, Cancun, Mexico, October 6-8, 2005. Proceedings
The message sent to Sj is: Ci → Sj : Ci , c, σ where c = EKencr (“Group key”, Ci , KiC ) and σ = M ACKM ac (c). First the clusterhead encrypts the group key using the key Kencr derived from Kij and then creates a MAC σ of the resulting ciphertext c. Then it transmits the message. Observe here that if we make the reasonable assumption that nodes form hierarchies and are organized in a breadth ﬁrst tree based on some routing protocol, then the group key can be distributed recursively using intermediate level clusterheads until all the sensor nodes at the leaves are reached.
Bruschi, and E. Rosti, “Secure pebblenet,” in Proceedings of the 2001 ACM International Symposium on Mobile Ad Hoc Networking & Computing, MobiHoc 2001, pp. 156–163, October 2001. 4. L. Eschenauer and V. D. Gligor, “A key-management scheme for distributed sensor networks,” in Proceedings of the 9th ACM conference on Computer and communications security, pp. 41–47, 2002. 5. Song, “Random key predistribution schemes for sensor networks,” in IEEE Symposium on Security and Privacy, pp. 197–213, May 2003.
Using the hierarchical structure of the network, however, this number remains small even for large network sizes (details omitted due to space restrictions). 2 Storage Requirements Each sensor node has to store in memory the key it shares with the base station, its unique key Ki , the current group key, the pairwise keys it shares with the clusterhead and its neighbors, and the current value of the hash key chain. Assuming that the average density of the network is d and that each key is 10 bytes long (80 bits), each sensor has to store 10(d + 4) bytes of information.