The drone's open and untrusted environment may create problems for authentication and data sharing. To address this issue, we propose a blockchain-enabled efficient and secure data sharing model for 5G flying drones. In this model, blockchain and attribute-based encryption (ABE) are applied to ensure the security of instruction issues and data sharing. The authentication mechanism in the model employs a smart contract for authentication and access control, public key cryptography for providing accounts and ensuring accounts' security, and a distributed ledger for security audit. In addition, to speed up out-sourced computations and reduce electricity consumption, an ABE model with parallel outsourced computation (ABEM-POC) is constructed, and a generic parallel computation method for ABE is proposed. The analysis of the experimental results shows that parallel computation significantly improves the speed of outsourced encryption and decryption compared to serial computation.

中文翻译：

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5G 飞行无人机高效、安全的数据共享：基于区块链的方法


无人机的开放且不可信的环境可能会给身份验证和数据共享带来问题。为了解决这个问题，我们提出了一种基于区块链的5G飞行无人机高效、安全的数据共享模型。在该模型中，应用区块链和基于属性的加密（ABE）来确保指令发布和数据共享的安全性。模型中的认证机制采用智能合约进行认证和访问控制，公钥密码学用于提供账户并保证账户安全，分布式账本用于安全审计。此外，为了加快外包计算速度并降低电力消耗，构建了并行外包计算的ABE模型（ABEM-POC），并提出了一种通用的ABE并行计算方法。实验结果分析表明，与串行计算相比，并行计算显着提高了外包加解密的速度。