A Resource-Friendly Authentication Protocol for UAV-Based Massive Crowd Management Systems

Table 4

Operation running time.

Operations	Notations	User/mobile	UAV	Server
Pairing-bilinear		17.36	12.52	4.038
Point multiplication over ECC		5.116	4.107	0.926
Point addition over ECC		0.013	0.018	0.006
Secure hash		0.009	0.006	0.004
Symmetric operations		0.017	0.013	0.008