A Secure and Privacy-Preserving Three-Factor Anonymous Authentication Scheme for Wireless Sensor Networks in Internet of Things

Table 2

Comparison of our scheme and related schemes in attack/properties.

Attacks/properties	[19]	[20]	[21]	[23]	[24]	Ours
Privileged-insider attack	✓	✗	✓	✓	✓	✓
Offline password guessing attack	✓	✗	✓	✓	✓	✓
Denial-of-service attack	✓	✓	✓	✓	✗	✓
Forger and impersonation attack	✗	✗	✓	✓	✓	✓
Replay attack	✓	✓	✓	✓	✓	✓
Man-in-middle attack	✓	✓	✓	✓	✓	✓
Smart card loss attack	✗	✗	✓	✓	✓	✓
Sensor node capture attack	✗	✓	✓	✓	✓	✓
Stolen‐verifier attack	✓	✓	✓	✓	✗	✓
Desynchronization attack	✓	✓	✓	✓	✗	✓
Perfect forward secrecy	✓	✓	✓	✓	✗	✓
Identity anonymity	✗	✓	✓	✓	✓	✓
Mutual authentication	✗	✓	✓	✓	✓	✓
Untraceability	✗	✗	✓	✓	✓	✓

✓, resist (attacks)/possess (properties); ✗, suffer (attacks)/no (properties).