Abstract
This letter proposes a group key distribution scheme using smart contract-based blockchain technology. The smart contract's functions allow for securely distributing the group session key, following the initial legitimacy detection using public key infrastructure-based authentication. For message authentication, we propose a lightweight symmetric key cryptography-based group signature method, supporting the security and privacy requirements of vehicular ad hoc networks (VANETs). Our discussion examined the scheme's robustness against typical adversarial attacks. To evaluate the gas costs associated with smart contracts functions, we implemented it on the Ethereum main network. Finally, comprehensive analyses of computation and communication costs demonstrate the scheme's effectiveness.
Original language | English |
---|---|
Pages (from-to) | 64-68 |
Number of pages | 5 |
Journal | IEEE Networking Letters |
Volume | 5 |
Issue number | 1 |
Early online date | 5 Jan 2023 |
DOIs | |
Publication status | Published - Mar 2023 |
Keywords
- Authentication
- Blockchain technology
- Group key distribution
- Public key infrastructure
- Smart contracts
- smart contracts
- public key infrastructure
- blockchain technology
- group key distribution
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Information Systems
- Communication
- Hardware and Architecture