PUFchain 2.0: Hardware-Assisted Robust Blockchain for Sustainable Simultaneous Device and Data Security in Smart Healthcare.
PUFchain 2.0: Hardware-Assisted Robust Blockchain for Sustainable Simultaneous Device and Data Security in Smart Healthcare.
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DOI：
10.1007/s42979-022-01238-2
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Rout, Bibhudutta
中科院分区：
文献类型：
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作者：
Bathalapalli, Venkata K V V;Mohanty, Saraju P;Kougianos, Elias;Baniya, Babu K;Rout, Bibhudutta
本文介绍了有史以来第一个硬件辅助区块链，用于同时处理智能医疗保健中的设备和数据安全。本文将硬件安全原语物理不可克隆函数（PUF）和区块链技术结合在一起，作为具有两级认证机制的PUF链2.0。所提出的PUF链2.0安全原语通过允许医疗物联网（IoMT）设备连接并从具有嵌入式PUF模块的边缘服务器获取PUF密钥，而不是将PUF模块连接到每个设备，从而提供了一种可扩展的方法。PUF密钥一旦被矿工分配给特定的媒体访问控制（MAC）地址，对于该MAC地址将是唯一的，并且不能被分配给其他设备。PUF是基于芯片制造期间的内部微制造工艺变化开发的。通过将IoMT的PUF密钥包含到区块链中进行认证，将PUF的这种属性与区块链集成在一起。在PUF链2.0中提出的启用PUF的认证共识机制的鲁棒性已通过测试床评估得到证实。Arbiter PUF已用于PUF链2.0的实验验证。从获得的200个PUF密钥中，75%是可靠的，并且PUF模块的汉明距离为48%。已提供所获得的数据库输出沿着以及其他指标，以验证PUF链2.0在智能医疗保健中的潜力。
This article presents the first-ever hardware-assisted blockchain for simultaneously handling device and data security in smart healthcare. This article presents the hardware security primitive physical unclonable functions (PUF) and blockchain technology together as PUFchain 2.0 with a two-level authentication mechanism. The proposed PUFchain 2.0 security primitive presents a scalable approach by allowing Internet of Medical Things (IoMT) devices to connect and obtain PUF keys from the edge server with an embedded PUF module instead of connecting a PUF module to each device. The PUF key, once assigned to a particular media access control (MAC) address by the miner, will be unique for that MAC address and cannot be assigned to other devices. PUFs are developed based on internal micro-manufacturing process variations during chip fabrication. This property of PUFs is integrated with blockchain by including the PUF key of the IoMT into blockchain for authentication. The robustness of the proposed Proof of PUF-Enabled authentication consensus mechanism in PUFchain 2.0 has been substantiated through test bed evaluation. Arbiter PUFs have been used for the experimental validation of PUFchain 2.0. From the obtained 200 PUF keys, 75% are reliable and the Hamming distance of the PUF module is 48%. Obtained database outputs along with other metrics have been presented for validating the potential of PUFchain 2.0 in smart healthcare.