A Certificateless Noninteractive Key Exchange Protocol with Provable Security

Table 2

Efficiency comparison of different protocols.

Protocol	Computation complexity	Running time (in milliseconds)
Sang et al.’s [19]	+ 2S + 1H	112.99
Fu and Liu’s [20]	+ S + 2H	110.04
Our protocol	+ 2S + H	73.73