Temporal Index Scheme of Hyperledger Fabric System in IoT

Author:

Lu Yongqiang1ORCID,Liu Zhaobin1ORCID,Wang Shaoqi1,Li Zhiyang1,Liu Weijiang1,Chen Xuhui2

Affiliation:

1. School of Information Science and Technology, Dalian Maritime University, Dalian 116026, China

2. The Key Laboratory of Internet of Things Application Technology, Xiamen University of Technology, Xiamen 361024, China

Abstract

As a large number of mobile terminals are connected to the IoT, the security problem of IoT is a challenge to the IoT technology. Blockchain technology has the characteristics of decentralization, data encryption, smart contract, and so on, especially suitable in the complex heterogeneous network. However, sequential access based on block files in the blockchain hinders efficient query processing. The problem is due to current blockchain solutions do not support temporal data processing. In this paper, we propose two index building methods (TISD and TIF) to address this issue in Hyperledger Fabric System. TISD (temporal index based on state databases) segments the historical data by time interval in the time dimension and indexes events at the same time interval. TIF (temporal index based on files) builds the index of files by the block transaction data, which is arranged in chronological order and is stored at a certain time interval. In the experimental part, we compare the query time on two datasets and analyse the query performance. Experiments demonstrated that our two methods are relatively stable in overall time performance on different datasets in the Hyperledger Fabric System.

Funder

Natural Science Foundation of Liaoning Province

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Information Systems

Reference50 articles.

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