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1·This sketch by Leonardo da Vinci is known as' Masquerader in the Guise of a Prisoner 'and is taken from an old book of printed sketches by da Vinci.

这个素描是大家熟知的达芬奇的《囚徒扮演者》，来自于一本刊印达芬奇素描的旧书。

2·In addition, the succeeded masquerader detection algorithm is proposed in this scheme. In this algorithm, the sink node monitors and examines the malicious region.

该方案也提出了成功假冒攻击源测定算法，其中采用了汇聚节点监控排查恶意区域、普通节点认证转发报警消息机制。