Smart Contract-Based Blockchain-Envisioned Authentication Scheme for Smart Farming
Smart Contract-Based Blockchain-Envisioned Authentication Scheme for Smart Farming
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DOI：
10.1109/jiot.2021.3050676
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发表时间：
2021-01
影响因子：
10.6
通讯作者：
Anusha Vangala;Anil Kumar Sutrala;A. Das;Minho Jo
中科院分区：
文献类型：
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作者：
Anusha Vangala;Anil Kumar Sutrala;A. Das;Minho Jo
基于区块链的智能农业技术在单个集成平台上向农民和其他与智能农业相关的用户提供农业数据。此外，区块中存储的数据在区块链中的持久性和可审核性提供了在以后需要时使用正确数据的信心，同时增加了透明度、匿名性和可追溯性。为了实现这一目标，本文在智能农业环境中设计了一种新的基于智能契约的区块链可认证密钥协商机制。设备到设备(D2D)身份验证阶段和设备到网关(D2G)身份验证阶段分别支持两个物联网(IoT)设备之间以及网络中IoT设备和网关节点(GWN)之间的相互身份验证和密钥协商。这些块由边缘服务器根据从GWN接收的物联网设备的认证数据创建，然后发送到云服务器(CS)。基于智能合同的共识机制允许通过对等(P2P)CSS网络对形成的块进行验证和添加。方案的安全性是通过正式和非正式的安全分析，以及使用正式的安全验证工具来完成的。详细的比较研究表明，与现有的竞争认证协议相比，该方案提供了更好的安全性和更多的功能特征。最后，进行了基于区块链的模拟，以测量不同数量的挖掘块以及每个块不同数量的事务的计算时间。
A blockchain-based smart farming technology provides the agricultural data to the farmers and other users associated with smart farming on a single integrated platform. Moreover, persistence and auditability of stored data in blocks into the blockchain provide the confidence of using the correct data when needed later and adds transparency, anonymity, and traceability at the same time. To fulfill such a goal, in this article, we design a new smart contract-based blockchain-envisioned authenticated key agreement mechanism in a smart farming environment. The device-to-device (D2D) authentication phase and device-to-gateway (D2G) authentication phase support mutual authentication and key agreement between two Internet-of-Things (IoT)-enabled devices and between an IoT device and the gateway node (GWN) in the network, respectively. The blocks are created by the edge servers on the authenticated data of IoT devices received from the GWNs and then sent to the cloud server (CS). The smart contract-based consensus mechanism allows verification and addition of the formed blocks by a peer-to-peer (P2P) CSs network. The security of the proposed scheme is done through formal and informal security analysis, and also using the formal security verification tool. A detailed comparative study reveals that the proposed scheme offers superior security and more functionality features as compared to existing competing authentication protocols. Finally, the blockchain-based simulation has been conducted to measure computational time for a varied number of mined blocks and also a varied number of transactions per block.