Contact avoidance routing in delay tolerant networks
Contact avoidance routing in delay tolerant networks
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DOI：
10.1109/infocom.2017.8057110
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发表时间：
2017-05
期刊：
影响因子：
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通讯作者：
Tomoya Osuki;Kazuya Sakai;S. Fukumoto
中科院分区：
文献类型：
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作者：
Tomoya Osuki;Kazuya Sakai;S. Fukumoto
容迟网络（DTN）被广泛应用于灾难恢复、战场通信等网络应用中。这样的关键网络场景需要针对基于接触的攻击的彻底预防机制，例如，勒索合法用户以泄露联系人的敏感信息。据我们所知，有没有工作对安全路由协议的DTNs接触为基础的攻击。因此，在本文中，我们首先阐述了接触避免路由问题，其中持有消息的节点试图避免与对手接触。利用相位型分布建立了安全机会路径模型，该模型综合考虑了机会路径的安全性和截止期内的投递概率。然后，我们提出了一个接触避免路由（CAR）协议，以安全地提供一个消息到其目的地对基于接触的妥协攻击。此外，我们进一步提出了一个自适应CAR（A-CAR），以适应复杂的网络场景，其中对手的能力是参数化的。使用真实的轨迹以及随机图进行的大量仿真表明，所提出的CAR和A-CAR协议实现了其设计目标。
Delay tolerant networks (DTNs) are widely adopted to many network applications, such as disaster recovery and battlefield communications. Such critical network scenarios call for an outright prevention mechanism against contact-based attacks, e.g., blackmailing a legitimate user to compromise sensitive information at a contact. To the best of our knowledge, there is no work on secure routing protocol against contact-based attacks in DTNs. Therefore, in this paper, we first formulate the problem of contact avoidance routing, in which the node holding a message tries to avoid having a contact with an adversary. By applying the phase-type distribution, we build the secure opportunistic path model, which integrates the delivery probability within the deadline and the safety of opportunistic paths. Then, we propose a contact avoidance routing (CAR) protocol to securely deliver a message to its destination against the contact-based compromise attack. In addition, we further propose an adaptive CAR (A-CAR) to accommodate complicated network scenarios, where the capabilities of adversaries are parameterized. The extensive simulations using real traces as well as random graphs demonstrate that the proposed CAR and A-CAR protocols achieve their design goals.