A General Architecture for Multiserver Authentication Key Agreement with Provable Security

Table 2

Comparative summary: computation costs and analysis of various attacks.

Protocols	Sood et al. [28]	Lee et al. [27]	Li et al. [29]	proposed protocol
User side
Server side
RC side
total
Resist Insider Attack	yes	yes	yes	yes
Resist Off-line Password Guessing Attack	yes	yes	yes	yes
Resist User Impersonation Attack	no	yes	yes	yes
Resist Server Spoofing Attack	yes	yes	yes	yes
Resist Stolen Card Attack	no	yes	no	yes
Resist Modification Attack	yes	no	yes	yes
Resist Man-in-the-middle Attack	yes	no	no	yes