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P2p-hgkm : an efficient hierarchical group key management protocol for mobile ad-hoc networks Peng, Peng
Abstract
Wireless networks are growing rapidly in recent years and research in wireless technology is gaining increasing attention, especially in the area of security. Our thesis addresses an interesting security problem in wireless ad-hoc network: the P2P dynamic secure group key establishment. To secure group communication in an ad-hoc network, a group key shared by all group members is required. This group key should be updated when there are membership changes in the group, e.g. when a new member joins or a current member leaves. In this thesis, we propose a novel efficient P2P hierarchical group key management protocol for ad-hoc networks. We introduce a two-level hierarchical structure and a new scheme of group key update. The idea is to divide the group into subgroups; each maintains its subgroup key and links with other subgroups in a ring structure. A salient feature of our scheme is that group key gets updated and managed in a P2P manner. By introducing subgroups, public encryptions, and unicasts in key updates, will be limited in one subgroup and computation load is distributed to many hosts. Both theoretical analysis and experiment results show that our protocol performs well for the key establishment problem in ad-hoc network in terms of both computing cost and bandwidth overhead.
Item Metadata
Title |
P2p-hgkm : an efficient hierarchical group key management protocol for mobile ad-hoc networks
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2004
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Description |
Wireless networks are growing rapidly in recent years and research in wireless
technology is gaining increasing attention, especially in the area of security. Our thesis
addresses an interesting security problem in wireless ad-hoc network: the P2P dynamic
secure group key establishment. To secure group communication in an ad-hoc network, a
group key shared by all group members is required. This group key should be updated
when there are membership changes in the group, e.g. when a new member joins or a
current member leaves. In this thesis, we propose a novel efficient P2P hierarchical group
key management protocol for ad-hoc networks. We introduce a two-level hierarchical
structure and a new scheme of group key update. The idea is to divide the group into
subgroups; each maintains its subgroup key and links with other subgroups in a ring
structure. A salient feature of our scheme is that group key gets updated and managed in
a P2P manner. By introducing subgroups, public encryptions, and unicasts in key updates,
will be limited in one subgroup and computation load is distributed to many hosts. Both
theoretical analysis and experiment results show that our protocol performs well for the
key establishment problem in ad-hoc network in terms of both computing cost and
bandwidth overhead.
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Extent |
6736555 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-11-24
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0051627
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2004-05
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.