Submission Deadline: 15 May 2021 (closed) View: 189
Motivated by the fast evolvement of blockchain technology, cloud-edge platforms, intelligent transportation systems, smart grid, vehicular networks, location based services, and other IoT applications have achieved significant breakthrough during recent years. Nowadays, blockchain based researches and projects are super-hot topics and focuses for both research and industrial communities. However, most of the current blockchain projects still suffer from insufficient security concerns. The defects of the underlying protocol make the node communication vulnerable to be hijacked, and further exacerbate the fork problem; smart contracts can hardly be fully tested before deployment because of the evolving blockchain platforms, while the smart contracts updating is impossible (or very complicated); current data privacy protection techniques are either inefficient or inaccurate; sharing and cross-chain schemes brought new security problems together with its TPS promotion. The intrinsic security vulnerabilities make the current blockchain based systems and architectures prone to be assaulted, and further do harm to the confidence of the investment on the blockchain industrial. Worse still, blockchain turns out to play a critical role in a lot of existing security solutions, which would be useless if the blockchain is insecure.
This special issue aims to bring together researchers, engineers, students in both academic and industrial communities to share and present their recent insights and emerging results of the blockchain security technologies.
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