Traceable Multiauthority Attribute-Based Encryption with Outsourced Decryption and Hidden Policy for CIoT

Table 3

Notations.

Notation	Meaning
	One exponentiation in group /
	One pairing operation of the pairing function .
	The row number of the encryption LSSS access matrix.
	The attribute number of the user attribute set.
	The attribute number required in decryption.
	The attribute number of the attribute universe set.