Trusted Blockchain-Based Signcryption Protocol and Data Management for Authentication and Authorization in VANETs

Table 4

Performance comparison with other schemes.

Schemes	Signcryption cost	Unsigncryption cost		Confidentiality	Unforgeability
Iqbal et al. [28]	4nOM			√	√
Cui et al. [29]	nOP			√	√
Hong et al. [30]				√	√
Du et al. [31]	4nOM	4nOM		√	√
TB-SCDM	2nOM	nOM		√	√