Efficient Privacy-Preserving Data Aggregation Scheme with Fault Tolerance in Smart Grid

Table 3

Time cost of cryptographic operations (millisecond).

Notations	Descriptions	Run time
	Bilinear pairing operation	1.6678
	Map-to-point hash operation	1.5586
	Exponentiation operation in	0.1491
	Exponentiation operation in	0.1779
	Multiplication operation in	0.0268
	Solving the discrete logarithm operation	0.1845
	Exponentiation operation in	0.6126
	Exponentiation operation in	0.0063
	Paillier public key encryption operation	0.9466
	Paillier public key decryption operation	1.2129
	Exponentiation operation in	0.4999
	Scale multiplication operation in ECC	0.1088
	Modular operation	0.0138
	Modular operation	0.0028