A low-cost solution for frequent symmetric key exchange in ad-hoc networks

Volkmer, MarkusWallner, SebastianDadam, PeterReichert, Manfred2019-10-112019-10-1120043-88579-379-2https://dl.gi.de/handle/20.500.12116/28831Next 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 adhoc 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 standardcell ASIC design realisation as IP-core in 0.18µ-technology are evaluated.enA low-cost solution for frequent symmetric key exchange in ad-hoc networksText/Conference Paper1617-5468