Cryptanalysis and Security Enhancement of Three Authentication Schemes in Wireless Sensor Networks

Table 2

Performance and security comparison.

Related schemes	Computation cost on log-auth phases	PFS	Key technology
			Hash	ECC		RSA
Li et al. (2018) [25]			✓	✓
Amin et al. (2018) [8]			✓
Wu et al. (2017) [9]			✓
Roy et al. (2017) [45]			✓		✓
Moon et al. (2017) [50]			✓		✓
Srinivas et al. (2017) [51]			✓
Das et al. (2016) [52]		✓	✓	✓
Chang et al. (2016) [53]			✓
Vaidya et al. (2016) [54]			✓
Odelu et al. (2015) [55]			✓			✓

. : one-time hash operation time; : elliptic curve point multiplication computation time; : running time of chaotic maps; : time for modular multiplication/division.
. means the corresponding scheme fails to achieve this property; CM denotes chaotic maps; PFS denotes perfect forward secrecy.