Blockchain-based privacy preservation for supply chains supporting lightweight multi-hop information accountability

Bader, Lennart; Pennekamp, Jan; Matzutt, Roman; Hedderich, David; Kowalski, Markus; Lücken, Volker; Wehrle, Klaus

doi:10.1016/j.ipm.2021.102529

Cited by 62 publications

(38 citation statements)

References 54 publications

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“…Blockchains may be used as an architectural pillar for reshaping supply chains [37,38,61,62], especially due to improved financial transactions, asset management, process automation, and data management. However, smooth integration is still lacking [42].…”

Section: Supply Chainsmentioning

confidence: 99%

“…However, smooth integration is still lacking [42]. TrustChain [39], ProductChain [11], PrivChain [63], TradeChain [64], and PrivAccIChain [62] already tackle important issues of supply chain deployments, such as reputation-based trust management among suppliers and provenance tracking for customers. Still, holistic approaches to improve supply chains based on distributed ledgers are yet to come [65].…”

Section: Supply Chainsmentioning

confidence: 99%

“…A fundamental question in this regard is how to define, depending on the respective scenarios, what data can be pruned, and when it can be pruned. For instance, some records may become obsolete entirely after a certain time, while other records must be kept indefinitely, either with reduced granularity or as raw data, e.g., manufacturing data of aerospace suppliers [62,74]. In addition to defining prunable data, stakeholders need to be able to mark their data to be pruned correspondingly.…”

Section: Scalabilitymentioning

confidence: 99%

“…Today, large-scale production and supply chains (P1 Õ) are opaque regarding processes and the origin of processed goods [12]. Hence, root causes of failures and other issues cannot be tracked down efficiently, creating massive administrative overheads [37,62,80], e.g., hampering legal investigations, causing over-dimensioned product recalls, or an inefficient lookup of compatible spare parts for repairs or assembling bigger workpieces. Similarly, feeding back information from mid-term or long-term field experience into processes for improvements is hard [8].…”

Section: Reliable Product Informationmentioning

confidence: 99%

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The Road to Accountable and Dependable Manufacturing

et al. 2021

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The Internet of Things provides manufacturing with rich data for increased automation. Beyond company-internal data exploitation, the sharing of product and manufacturing process data along and across supply chains enables more efficient production flows and product lifecycle management. Even more, data-based automation facilitates short-lived ad hoc collaborations, realizing highly dynamic business relationships for sustainable exploitation of production resources and capacities. However, the sharing and use of business data across manufacturers and with end customers add requirements on data accountability, verifiability, and reliability and needs to consider security and privacy demands. While research has already identified blockchain technology as a key technology to address these challenges, current solutions mainly evolve around logistics or focus on established business relationships instead of automated but highly dynamic collaborations that cannot draw upon long-term trust relationships. We identify three open research areas on the road to such a truly accountable and dependable manufacturing enabled by blockchain technology: blockchain-inherent challenges, scenario-driven challenges, and socio-economic challenges. Especially tackling the scenario-driven challenges, we discuss requirements and options for realizing a blockchain-based trustworthy information store and outline its use for automation to achieve a reliable sharing of product information, efficient and dependable collaboration, and dynamic distributed markets without requiring established long-term trust.

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Section: Supply Chainsmentioning

confidence: 99%

Section: Supply Chainsmentioning

confidence: 99%

Section: Scalabilitymentioning

confidence: 99%

Section: Reliable Product Informationmentioning

confidence: 99%

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The Road to Accountable and Dependable Manufacturing

et al. 2021

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“…[26] employed a smart contract instead of traditional transaction records to protect critical business information. Furthermore, Bader et al [27] introduced Pri-vAccIChain, a privacy-preserving architecture for optimizing multi-hop information retrieval while maintaining stakeholder accountability in supply chains. Despite all these recent works and attentions, blockchain research in the SC domain is still in its early stages, which has yet to overcome significant obstacles in terms of scalability, throughput, latency, and trust.…”

Section: A Blockchain Based Scmmentioning

confidence: 99%