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标题:Securing interim payments in construction projects through a blockchain-based framework
时间:2020-06-30 23:20:18
DOI:10.1016/j.autcon.2020.103284
大小:7347 kb
页数:22 PAGES
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目录:
  • Securing interim payments in construction projects through a blockchain-based framework
    • Introduction
    • Blockchain-based framework for interim payments in construction project
      • Building blocks of security for the proposed framework
        • User authentication through asymmetric cryptography
        • Shared data confidentiality through symmetric cryptography
        • Data authentication through one-way hash functions
      • A decentralized blockchain-based key management strategy for construction projects
        • Phase 2: generation and sharing of “Precursors of Shared Private Key”
        • Phase 3: generation of “Shared Private Key” (SKij) locally
      • Blockchain data model for selectively-transparent payment records
      • The logic for automation of interim payments via smart contracts
        • Manual process and payment proof
        • Conditions of the smart contract for automation
    • Evaluation of the proposed framework
      • Immutability
        • Number of blocks following the block to be altered (Z)
        • Network hash rate (Hr)
      • Security
      • Performance
      • Cost of execution
    • Conclusion
    • Declaration of competing interest
    • References

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