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For the problem that sensing layer is in lack of effective trust attestation mechanism and effective tracking of the nodes during data transmission of the internet of things,this paper proposes a remote attestation mechanism for sensing layer nodes of the internet of things.By do extraction and encapsulation of nodes key attribution,we effectively complete the trust attestation and the traceability of nodes and keeping the key privacy information safely.The trust validation of the node is simple and efficient,and which is proved to be safe under the random oracle machine model.The simulation experiments show that the attestation scheme is flexible,practical and efficient certification with low impact on the performance of the system.