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End hopping is an active and effective technology for defending against adversaries in the network warfare. Synchronization is a key technology of end hopping. However, the common synchronization methods are insufficient for end hopping. Based on timestamp synchronization, this paper proposes a novel method of Distributed Timestamp Synchronization (DTS) to improve the capacity of synchronization. DTS uses a list of timestamp servers which are located all over the Internet to synchronize timestamp, and a list of clock offsets to adjust the synchronized timestamp. DTS can overcome the main deficiencies (request overwhelming and boundary failure) of timestamp synchronization. Experiments show that DTS is a feasible synchronization technology for end hopping. 相似文献
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中间人(MitM)攻击是强健安全网络(RSN)面临的一类严重安全威胁。参照802.1X-2004认证者和申请者状态机模型,从RSN关联建立过程的整体视角,对RSN中MitM攻击进行系统性分析。指出现有关于RSN中MitM攻击问题研究方面存在片面性,提出RSN中一个MitM攻击的框架和有效攻击条件,并给出该框架下一个有效攻击实例。分析结果表明,RSN采用强双向认证方法时可抗MitM攻击,未采用强双向认证方法时易遭MitM攻击。 相似文献
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