| [177009] |
| Title: A Low-Cost Solution for Frequent Symmetric Key Exchange in Ad-hoc Networks. <em>In Proceedings of the Workshop Mobile Ad-hoc Netzwerke (WMAN)</em> |
| Written by: Markus Volkmer and Sebastian Wallner |
| in: September (2004). |
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| on pages: 128-132 |
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| Series: 20040920-wman-volkmer.pdf |
| Address: Ulm / Germany |
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| how published: 04-80 VoWa04 WMAN |
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Note: AEG
Abstract: Next to authentication, secure key exchange is considered the most critical and complex issue regarding ad-hoc network security. We present a low-cost, (i.e. low hardware-complexity) solution for feasible frequent symmetric key exchange in ad-hoc networks, based on a Tree Parity Machine Rekeying Architecture. A key exchange can be performed within a few milliseconds, given practical wireless communication channels and their limited bandwidths. A flexible rekeying functionality enables the full exploitation of the achievable key exchange rates. Characteristics of a standard-cell ASIC design realisation as IP-core in 0.18 micrometer-technology are evaluated.