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ESIP: Secure Incentive Protocol with Limited Use of Public-Key Cryptography for Multihop Wireless Networks

机译:ESIP:在多跳无线网络中有限使用公钥密码学的安全激励协议

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In multihop wireless networks, selfish nodes do not relay other nodes' packets and make use of the cooperative nodes to relay their packets, which has negative impact on the network fairness and performance. Incentive protocols use credits to stimulate the selfish nodes' cooperation, but the existing protocols usually rely on the heavyweight public-key operations to secure the payment. In this paper, we propose secure cooperation incentive protocol that uses the public-key operations only for the first packet in a series and uses the lightweight hashing operations in the next packets, so that the overhead of the packet series converges to that of the hashing operations. Hash chains and keyed hash values are used to achieve payment nonrepudiation and thwart free riding attacks. Security analysis and performance evaluation demonstrate that the proposed protocol is secure and the overhead is incomparable to the public-key-based incentive protocols because the efficient hashing operations dominate the nodes' operations. Moreover, the average packet overhead is less than those of the public-key-based protocols with very high probability due to truncating the keyed hash values.
机译:在多跳无线网络中,自私节点不中继其他节点的数据包,而是利用协作节点中继其数据包,这对网络公平性和性能产生负面影响。激励协议使用信用来刺激自私节点的合作,但是现有协议通常依靠重量级的公钥操作来确保付款。在本文中,我们提出了一种安全合作激励协议,该协议仅对系列中的第一个数据包使用公钥操作,而在下一个数据包中使用轻量级哈希操作,从而使数据包系列的开销收敛于哈希的开销操作。哈希链和键控哈希值用于实现付款不可抵赖性和阻止免费乘车攻击。安全分析和性能评估表明,所提出的协议是安全的,并且开销是基于公钥的激励协议所无法比拟的,因为高效的哈希操作主导着节点的操作。而且,由于截断了键控的哈希值,平均包的开销比基于公钥的协议的平均包开销要小得多。

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