A survey on security and privacy of federated learning

P4-to-blockchain: A secure blockchain-enabled packet parser for software defined networking

Constructing globally distributed file systems (DFS) has received great attention. Traditional Peer-to-Peer (P2P) distributed file systems have inevitable drawbacks such as instability, lacking auditing and incentive mechanisms. Thus, Inter-Planetary File System (IPFS) and Swarm, as the representative DFSs which integrate with blockchain technologies, are proposed and becoming a new generation of distributed file systems. Although the blockchain-based DFSs successfully provide adequate incentives and security guarantees by exploiting the advantages of blockchain, a series of challenges, such as scalability and privacy issues, are also constraining the development of the new generation of DFSs. Mainly focusing on IPFS and Swarm, this paper conducts an overview of the rationale, layered structure and cutting-edge studies of the blockchain-based DFSs. Furthermore, we also identify their challenges, open issues and future directions. We anticipate that this survey can shed new light on the subsequent studies related to blockchain-based distributed file systems.

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When Blockchain Meets Distributed File Systems: An Overview, Challenges, and Open Issues

The ISO/IEC 27043:2015 international standard provides new standardised guidelines for common investigation processes across various investigation scenarios that mostly involve digital evidence. The reporting process is one of the many investigative processes described in the ISO/IEC 27043:2015 standard, but the manner in which the reporting process is presented does not constitute or cover the specificity of the presentation of the entire processes covered in the standard. In this paper, we posit the importance of having the report generation process covering details obtained from all other classes of the digital investigation processes in a standardised format, as well as the need to standardise the process of generating digital forensic reports. Such a standardised process can facilitate future automation and text analytics, sharing of reports and knowledge across jurisdictions, etc. We also identify a number of key factors, such as the use of Blockchain, which should be added to the ISO/IEC 27043 international standard in order to support a standardised digital forensic report generation process.

On the importance of standardising the process of generating digital forensic reports

Distributed common data environment using blockchain and Interplanetary File System for secure BIM-based collaborative design

The Interplanetary File System (IPFS) is a distributed file system that seeks to decentralize the web and to make it faster and more efficient. It incorporates well-known technologies, including BitTorrent and Git, to create a swarm of computing systems that share information. Since its introduction in 2016, IPFS has seen great improvements and adoption from both individuals and enterprise organizations. Its distributed network allows users to share files and information across the globe. IPFS works well with large files that may consume or require large bandwidth to upload and/or download over the Internet. The rapid adoption of this distributed file system is in part because IPFS is designed to operate on top of different protocols, such as FTP and HTTP. However, there are underpinning concerns relating to security and access control, for example lack of traceability on how the files are accessed. The aim of this paper is to complement IPFS with blockchain technology, by proposing a new approach (BlockIPFS) to create a clear audit trail. BlockIPFS allows us to achieve improved trustworthiness of the data and authorship protection, and provide a clear route to trace back all activities associated with a given file using blockchain as a service.

Emmanuel Nyaletey

Papers

BlockIPFS - Blockchain-Enabled Interplanetary File System for Forensic and Trusted Data Traceability