An Improved Blockchain-Based Authentication Protocol for IoT Network Management

Table 1

Summary of notations used in this paper.

Notation	Description
	Prime order
	Cyclic groups with the same prime order
	Bilinear pairing map
	Generator of
	Master private key
	BCG public key, i.e.,
	Hash functions
		User ’s identity
	Shared key between the device and the BCG
	Message
	Symmetric encryption function
	Device policy
	Consent of the policy
	Timestamps
	Generated key between BCG and user
	User’s public key
	Random numbers generated by user, device, and BCG, respectively
	Transaction address added to blockchain because of acceptance policy by user
	Random numbers
	Shared key between the user and the BCG
	Random numbers
	Concatenation