V-LDAA: A New Lattice-Based Direct Anonymous Attestation Scheme for VANETs System

Table 6

Security comparison.

Security requirement	ECPB in [20]	DAPRS in [7]	LRMA in [8]	Scheme in [1]	V-LDAA
Anonymity	✓	✓	✓	✓	✓
Spontaneity	✓	✓	✓	✓	✓
Unforgeability	✗	✓	✓	✓	✓
Postquantum security	✗	✓	✓	✗	✓
User-controlled unlinkability	✗	✗	✗	✗	✓
Distributed revocation mechanism	—	—	—	✗	✓
Pseudonym update spontaneity	—	—	—	✗	✓