Research Article
A Novel Privacy-Preserving Authentication Protocol Using Bilinear Pairings for the VANET Environment
Table 7
Communication cost comparisons between the related research and our protocol.
| Protocols | Vehicle authentication | Message authentication |
| Wang and Yao [20] | 181 bytes | 352 bytes | Islam et al. [21] | 324 bytes | 388 bytes | Ahamed et al. [29] | 108 bytes | 288 bytes | The proposed | 120 bytes | 300 bytes |
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