Blockchain Private File Storage-Sharing Method Based on IPFS

Abstract

Under the current national network environment, anyone can participate in publishing. As an important information resource, knowledge files reflect the workload of publishers. Moreover, high-quality knowledge files can promote the progress of society. However, pirated inferior files have the opposite effect. At present, most organizations use centralized servers to centrally manage the knowledge files released by users. In addition, it is necessary to introduce an untrusted third party to examine and encrypt the contents of files, which leads to an opaque process of file storage transactions, tampering with intellectual copyright, and the inability to have consistent systems of file management among institutions due to the lack of uniform standards for the same intellectual files. The purpose of this paper is to ensure the safe storage of knowledge files on the one hand and to realize efficient sharing of copyrighted files on the other hand. Therefore, this paper combines NDN (Named Data Network) technology with a distributed blockchain and an Interplanetary File System (IPFS) and proposes a blockchain knowledge file storage and sharing method based on an NDN. The method uses the NDN itself for the file content signature and encryption, thereby separating the file security and transmission process. At the same time, the method uses a flexible NDN reverse path forwarding and routing strategy, combining an IPFS private storage network to improve the safety of the encrypted data storage security. Finally, the method takes advantage of all participating nodes consensus and shares files in the synchronized blockchain to ensure traceability. This paper introduces the structure and principles of the method and describes the process of file upload and transfer. Finally, the performance of the method is compared and evaluated, and the advantages and disadvantages of the method and the future research direction are summarized.

Commentary: Integrated blockchain-deep learning approach for analyzing the electronic health records recommender system

“…In Mantey et al ( 1 ), the authours used a private IPFS network ( 4 ) and a permissioned blockchain in their system. To summarize their approach, EHR is stored in the decentralized P2P storage, and patients control access to their EHR through immutable blockchain.…”

B-FEF-blockchain based framework to exchange files

“…However, the system did not take into account the change of some privileges of users in the future or their suspension. [19] This study included the proposal of a group of applications in which the blockchain can be crucial as a notary, as this application relied on the blockchain in the process of issuing certificates associated with files as a guarantee of the existence of these files first, and then confirming their integrity and non-tampering, as well as determining ownership accurately. In the blockchain and based on cryptographic hashes file to provide proof of publication, it is possible to establish a new level of notary time stamping.…”

Toward Building Smart Contract-Based Higher Education Systems Using Zero-Knowledge Ethereum Virtual Machine

“…Therefore, by exploiting smart contract compatibility, the implementation of a private IPFS with defined trusted parties in a permissioned manner is the most secure, as in DAC. This approach is similar to the one in the paper [137], with some changes that users have the opportunity to erase or modify their off-chain stored data from the database. Therefore, the execution component is supplemented with a data management component to implement the necessary functionalities.…”