A secure file sharing system based on IPFS and blockchain

Hsiao Shan Huang, Tian Sheuan Chang, Jhih Yi Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

There is a great interest in many approaches towards blockchain in providing a solution to record transactions in a decentralized way. However, there are some limitations when storing large files or documents on the blockchain. In order to meet the requirements of storing relatively large data, a decentralized storage medium is produced. IPFS is a distributed file system which is content-addressable. It works very similar to the blockchain network. There are some attempts which take advantage of the blockchain concept and IPFS to design new approaches. Unfortunately, there are some inefficiencies in sharing data using the combination of IPFS and blockchain. In this paper, we proposed a secure file sharing system that brings a distributed access control and group key management by the adoption of the IPFS proxy. The IPFS proxy which plays an important role in the design is adopted to take responsibility for the control policies. The combination of the IPFS server and the blockchain network with the adoption of the IPFS proxy make a secure file sharing system which the members on the system can create new groups or join different groups by their own choice. Although there is no access control mechanism in IPFS server and blockchain network, the secure file sharing system manages the access control policies. The members access files only belong to the group they authorized.

Original languageEnglish
Title of host publicationProceedings of the 2020 2nd International Electronics Communication Conference, IECC 2020
PublisherAssociation for Computing Machinery
Pages96-100
Number of pages5
ISBN (Electronic)9781450377706
DOIs
StatePublished - 8 Jul 2020
Event2nd International Electronics Communication Conference, IECC 2020 and the 2nd Blockchain and Internet of Things Conference, BIOTC 2020 - Virtual, Online, Singapore
Duration: 8 Jul 202010 Jul 2020

Publication series

NameACM International Conference Proceeding Series

Conference

Conference2nd International Electronics Communication Conference, IECC 2020 and the 2nd Blockchain and Internet of Things Conference, BIOTC 2020
CountrySingapore
CityVirtual, Online
Period8/07/2010/07/20

Keywords

  • access control
  • Blockchain
  • file sharing
  • group key management
  • Inter-Planetary File System(IPFS)

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