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The logical key hierarchy (LKH) is a well-known class of protocols which aims to solve the key management problem and minimize rekeying overhead, using hierarchical structures and taking advantage of multicast communication. In this work we propose a method for obtaining LKH structures by taking into account the topology of the underlying network, leading to a further decrease in rekeying costs, in terms of packet transmissions. <\/jats:p>","DOI":"10.1155\/2014\/762194","type":"journal-article","created":{"date-parts":[[2014,11,18]],"date-time":"2014-11-18T21:05:41Z","timestamp":1416344741000},"page":"762194","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["TALK: Topology Aware LKH Key Management"],"prefix":"10.1177","volume":"10","author":[{"given":"Dimitris","family":"Tsitsipis","sequence":"first","affiliation":[{"name":"Electrical and Computer Engineering Department, University of Patras, 26500 Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anthony","family":"Tzes","sequence":"additional","affiliation":[{"name":"Electrical and Computer Engineering Department, University of Patras, 26500 Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stavros","family":"Koubias","sequence":"additional","affiliation":[{"name":"Electrical and Computer Engineering Department, University of Patras, 26500 Patras, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2014,11,18]]},"reference":[{"volume-title":"Handbook of Applied Cryptography","year":"1997","author":"Menezes A. 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