Research Article

A Lightweight Privacy Protection User Authentication and Key Agreement Scheme Tailored for the Internet of Things Environment: LightPriAuth

Table 6

Computation cost of the login and authentication.

SchemesUserSensorGatewayTotalTotal (ms)

Wu et al. [9]11TH + 2TMUL + 1TE/D4TH + 2TMUL + 1TE/D11TH + 2TE/D26TH + 4TMUL + 4TE/D29.9432
Wu et al. [14]13TH + 2TMUL4TH + 2TMUL14TH31TH + 4TMUL29.4240
Chang and Le [11]7TH + 2TMUL5TH + 2TMUL9TH21TH + 4TMUL29.42
Chen et al. [1]5TH + 3TMUL3TH + 2TMUL7TH + 1TMUL15TH + 6TMUL44.1234
LightPriAuth5TH + 2TMUL4TH + 2TMUL8TH17TH + 4TMUL29.4184

In this table, the boldface ones are the ones with the least computation time.