A New Digital Watermarking Method for Data Integrity Protection in the Perception Layer of IoT

Table 1

Notations and parameters of algorithm.

Notation	Description
	The given one-way hash function SHA-1
	The concatenation operator
	The random position function
	The data collecting time
	The time queue stored in the sink node
	The length of watermark embedding bits
	The secret key
	The sensed data element
	The serial number inserted in each packet
	Watermark to be inserted
	The extracted watermark
	The regenerated watermark