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Securely solving classical network flow problems

Author

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  • Van Vyve, Mathieu

    (Université catholique de Louvain, CORE, Belgium)

  • Aly, Abdelrahaman

    (Université catholique de Louvain, CORE, Belgium)

Abstract

We investigate how to solve several classical network flow problems using secure multi-party computation. We consider the shortest path problem, the Minimum Mean Cycle problem and the Minimum Cost Flow problem. To the best of our knowledge, this is the first time the two last problems have been addressed in a general multi-party computation setting. Furthermore, our study highlights the complexity gaps between traditional and secure implementations of the solutions, to later test its implementation. It also explores various trade-offs between performance and security. Additionally it provides protocols that can be used as building blocks to solve complex problems. Applications of our work can be found in: communication networks, routing data from rival company hubs; benchmarking, comparing several IT appliances configurations of rival companies; distribution problems, retailer/supplier selection in multi-level supply chains that want to share routes without disclosing sensible information; amongst others.

Suggested Citation

  • Van Vyve, Mathieu & Aly, Abdelrahaman, 2014. "Securely solving classical network flow problems," LIDAM Discussion Papers CORE 2014057, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    • Handle: RePEc:cor:louvco:2014057
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    File URL: https://sites.uclouvain.be/core/publications/coredp/coredp2014.html
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    More about this item

    Keywords

    network flows; multi-party computation; secure collaboration;
    All these keywords.

    JEL classification:

    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis
    • C65 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Miscellaneous Mathematical Tools

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