TFPPASV: A Three-Factor Privacy Preserving Authentication Scheme for VANETs

Table 3

Security feature performance analysis.

Schemes	Ours	[10]	[32]	[33]	[34]
Correctness	✓	✓	✓	✓	✓
Vehicle impersonation attack	✓	✓	✓	✓	✓
Trusted authority impersonation attack	✓	✓	✓	✓	✓
Vehicle server impersonation attack	✓	✓	✓	✓	✓
Stolen SC attack	✓	✓	✗	✗	✗
Anonymity attack	✓	✓	✓	✓	✓
Untraceability attack	✓	✓	✓	✓	✓
Man-in-the-middle attack	✓	✓	✗	✗	✗
Offline password guessing attack	✓	✓	✗	✗	✗
Replay attack	✓	✓	✓	✓	✓
Mutual authentication	✓	✓	✓	✓	✓
Malicious user tracing	✓	✓	✓	✗	✗
TA bypassing	✓	✗	✓	✓	✓

Note. ✓: provides or resists; ✗: does not provide or does not resist.