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Title:
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CROSS ORGANIZATIONAL WORKFLOW MANAGEMENT
SYSTEM WITH CONTROLLED DISCLOSURE
AND NO-REDUNDANT DATA ON BLOCKCHAIN |
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Author(s):
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Hirofumi Nagano, Kaiho Fukuchi, Norihisa Komoda and Takenao Ohkawa |
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ISBN:
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978-989-8704-62 |
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Editors:
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Paula Miranda and Pedro Isaías |
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Year:
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2024 |
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Edition:
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Single |
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Keywords:
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Workflow, Cross Organization, Blockchain, Confidentiality |
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Type:
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Full |
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First Page:
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13 |
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Last Page:
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21 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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The cross organizational workflow execution engine on blockchain which guarantees no data tampering with minimum
data size while limiting information disclosure to only the companies involved is proposed. The proposed engine utilizes
Private Data Collection of Hyperledger Fabric to store raw data only in specific nodes to ensure data security. Additionally,
a smart contract is used to sequentially compare the data in each step of the workflow with hash values stored in other
nodes. The workflow data consistency is ensured with a minimal data structure which eliminates redundancy. The proposed
engine is implemented and confirmed that it achieves the same processing performance and reduces the amount of data to
20% compared to the previously proposed engine. |
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