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A routing path construction method for key dissemination messages in sensor networks.

Moon SY, Cho TH - ScientificWorldJournal (2014)

Bottom Line: Authentication is an important security mechanism for detecting forged messages in a sensor network.Each cluster head (CH) in dynamic key distribution schemes forwards a key dissemination message that contains encrypted authentication keys within its cluster to next-hop nodes for the purpose of authentication.The forwarding path of the key dissemination message strongly affects the number of nodes to which the authentication keys in the message are actually distributed.

View Article: PubMed Central - PubMed

Affiliation: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea.

ABSTRACT
Authentication is an important security mechanism for detecting forged messages in a sensor network. Each cluster head (CH) in dynamic key distribution schemes forwards a key dissemination message that contains encrypted authentication keys within its cluster to next-hop nodes for the purpose of authentication. The forwarding path of the key dissemination message strongly affects the number of nodes to which the authentication keys in the message are actually distributed. We propose a routing method for the key dissemination messages to increase the number of nodes that obtain the authentication keys. In the proposed method, each node selects next-hop nodes to which the key dissemination message will be forwarded based on secret key indexes, the distance to the sink node, and the energy consumption of its neighbor nodes. The experimental results show that the proposed method can increase by 50-70% the number of nodes to which authentication keys in each cluster are distributed compared to geographic and energy-aware routing (GEAR). In addition, the proposed method can detect false reports earlier by using the distributed authentication keys, and it consumes less energy than GEAR when the false traffic ratio (FTR) is ≥ 10%.

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Postdeployment phase of DEF.
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Related In: Results  -  Collection


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fig1: Postdeployment phase of DEF.

Mentions: In the filtering phase, sensing nodes update their authentication keys, generate sensing reports, and send them to the associated CHs. Each sensing report contains a MAC generated using the new authentication key of the sending node. The CH organizes the final report and forwards it to the next-hop nodes. In addition, the CH sends a new key dissemination message that contains the authentication keys used for endorsing the final report to the next nodes. The nodes on the forwarding path verify the final report based on the authentication keys they have just obtained from the new key dissemination message. If the verification fails, they drop the report. Figure 1 illustrates the postdeployment phase of DEF.


A routing path construction method for key dissemination messages in sensor networks.

Moon SY, Cho TH - ScientificWorldJournal (2014)

Postdeployment phase of DEF.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127250&req=5

fig1: Postdeployment phase of DEF.
Mentions: In the filtering phase, sensing nodes update their authentication keys, generate sensing reports, and send them to the associated CHs. Each sensing report contains a MAC generated using the new authentication key of the sending node. The CH organizes the final report and forwards it to the next-hop nodes. In addition, the CH sends a new key dissemination message that contains the authentication keys used for endorsing the final report to the next nodes. The nodes on the forwarding path verify the final report based on the authentication keys they have just obtained from the new key dissemination message. If the verification fails, they drop the report. Figure 1 illustrates the postdeployment phase of DEF.

Bottom Line: Authentication is an important security mechanism for detecting forged messages in a sensor network.Each cluster head (CH) in dynamic key distribution schemes forwards a key dissemination message that contains encrypted authentication keys within its cluster to next-hop nodes for the purpose of authentication.The forwarding path of the key dissemination message strongly affects the number of nodes to which the authentication keys in the message are actually distributed.

View Article: PubMed Central - PubMed

Affiliation: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea.

ABSTRACT
Authentication is an important security mechanism for detecting forged messages in a sensor network. Each cluster head (CH) in dynamic key distribution schemes forwards a key dissemination message that contains encrypted authentication keys within its cluster to next-hop nodes for the purpose of authentication. The forwarding path of the key dissemination message strongly affects the number of nodes to which the authentication keys in the message are actually distributed. We propose a routing method for the key dissemination messages to increase the number of nodes that obtain the authentication keys. In the proposed method, each node selects next-hop nodes to which the key dissemination message will be forwarded based on secret key indexes, the distance to the sink node, and the energy consumption of its neighbor nodes. The experimental results show that the proposed method can increase by 50-70% the number of nodes to which authentication keys in each cluster are distributed compared to geographic and energy-aware routing (GEAR). In addition, the proposed method can detect false reports earlier by using the distributed authentication keys, and it consumes less energy than GEAR when the false traffic ratio (FTR) is ≥ 10%.

Show MeSH