By Dominique GaÃ¯ti
This quantity comprises the lawsuits of the Fourth IFIP foreign convention on community regulate and Engineering for QoS, safety and Mobility, NETCON 2005. The convention, geared up through the overseas Federation for info Processing, used to be held in Lannion, France from November 14-18, 2005. assurance explores community safeguard, community coverage, caliber of carrier, instant networks, clever networks, and function evaluate.
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Condition (2) means that the size of the rekeying messages is always less than the maximum size of an UDP packet (65536 bytes). Thus the upper bounds of group size can be determined by the following formula: (n + 1) * (^it + /i) + ait < 65536 (10) where n is the number of group members, while sk, h, and ak correspond to the size of the symmetric key, the hash value and the asymmetric key, respectively. Their corresponding typical values are 16 bytes, 20 bytes and 128 bytes. Formula (10) holds as long as n is smaller than 1815.
Y. Amir, C. Danilov, and J. Stanton: A low latency, loss tolerant architecture and protocol for wide area group communication. In: Proc. 30th IEEE FTCS, June 2000. A Token Based Key Distribution Protocol for Closed Group Meetings 43 19. M. Zuehlke, and H. Koenig: A Signaling Protocol for Small Closed Dynamic Multi-peer Groups. In Z. Mammeri and P. ): High Speed Networks and Multimedia Communications (HSNMC 2004). Springer-Verlag, Berlin, Heidelberg 2004, pp. 973 984 20. D. Harkins and D. Carrel: The Internet Key Exchange (IKE), RFC 2409, Nov.
0015b (4) where n is the number of group members and b the size of the rekeying message in bytes. TKD and TGDH require only one communication round to accomplish the group key renewal for joining and leaving, whereas the Rodeh protocol needs two communication rounds each. Group key renewal delay. Based on Table 2 and formula (4), we can now determine the group renewal delay using formula (3). The resulting delays for the join and the leave procedures are depicted in Figure 4 and 5. 16 20 24 32 40 Group size Fig.