Research Article
Traceable and Authenticated Key Negotiations via Blockchain for Vehicular Communications
| Proposed key negotiations | Lei et al. [9] | Our scheme | Park et al. [2] | Our scheme | A secure key management within the heterogeneous network | Three key negotiations via blockchain | RSU-based decentralized key negotiation | Three key negotiations via blockchain |
| Analyze the performance of proposed scheme | ✓ | ✓ | ✓ | ✓ | Propose optimization algorithms | ✕ | Three steps to generate a key | Determine the design parameters | Three steps to generate a key | Defend against MITM attacks | ✓ | ✓ | ✕ | ✓ | Defend against packet-dropping attacks | ✓ | ✓ | ✕ | ✓ | Defend against decryption failure attacks | ✕ | ✓ | ✕ | ✓ | Satisfy traceability of key exchange | ✓ | ✓ | ✕ | ✓ |
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