A Lightweight, Secure Big Data-Based Authentication and Key-Agreement Scheme for IoT with Revocability

Table 2

Notations used through the paper.

Notation	Description
	Security parameter
	Secret key of client
	Server
	Client
	Server’s data items
	Identity of client
	Pseudoidentity of client
	Subset of data items indices chosen by
	Bitwise Xor operation
	Size of the server’s big data
	i-th data item of big data
	Prime number
	Public key of client
	Secret signing key of party
	Public signing key of party
	Shared secret key
	Shared session key
	Distinctive hash functions
	i-th random number
	String concatenation operation
	Size of the subset
	Signature of i-th party