N-Version Programming as a Mitigation for Smart Contract Faults in Execute-Order-Validate Blockchain Systems
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Date
2023
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N-Version Programming as a Mitigation for Smart Contract Faults in Execute-Order-Validate Blockchain Systems
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Authors
Péter, Bertalan Zoltán
Kocsis, Imre
Kocsis, Imre
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en
Publisher
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könyvfejezet
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Open access
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Szerző
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2023.02.06-2023.02.07.
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Budapest
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30th Minisymposium of the Department of Measurement and Information Systems
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978-963-421-904-0
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Proceedings of the 30th Minisymposium
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Department of Measurement and Information Systems
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Post print
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Faculty of Electrical Engineering and Informatics
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33
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blockchain
distributed ledger technology
n-version programming
runtime fault-tolerance
smart contracts
distributed ledger technology
n-version programming
runtime fault-tolerance
smart contracts
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Konferenciacikk
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Budapest University of Technology and Economics
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Abstract
In this paper, we propose the application of a well-known runtime fault-tolerance technique, N-Version Program-ming (NVP), as a new tool of smart contract software fault mitigation, especially for execute-order-validate blockchain systems, such as Hyperledger Fabric (HLF). Two patterns for aligning the NVP concept with the HLF architecture are proposed. A fully transparent solution where all peers have the same N versions installed and one we termed ‘O-Version Programming’ (where ‘O’ stands for ‘Organization’), which relies on the majority voting aspects of execute-order-validate consensus mechanisms.