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Balancing Privity and Enforceability of BPM-Based Smart Contracts on Blockchains

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Business Process Management: Blockchain and Central and Eastern Europe Forum (BPM 2019)

Part of the book series: Lecture Notes in Business Information Processing ((LNBIP,volume 361))

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Abstract

Blockchains are a promising enabling technology for inter-organizational processes in untrusted environments and for the implementation of smart contracts in general. Smart contracts aim at three major objectives: observability, online enforceability and privity. Privity strives for limiting the sharing of information within a contract to those parties of a contract who have a contractual need to know. However, current BPM-based systems operating on blockchains do not address privity. The approaches deal with enforceability and privity as mutual exclusive properties. We show that the trade-offs between privity and enforceability can be considered in fine details and propose means to balance privity and enforceability in the design of smart contracts according to the application requirements. Besides this conceptual basis, we introduce patterns for encryption and key exchange allowing different levels of privity and for supporting proactive online enforceability in the presence of encrypted on-chain data.

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Notes

  1. 1.

    https://www.hyperledger.org/.

  2. 2.

    https://consensys.net/quorum-2/.

  3. 3.

    https://www.perun.network/.

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Authors and Affiliations

  1. Department of Informatics Systems, Alpen-Adria-Universität Klagenfurt, Klagenfurt, Austria

    Julius Köpke, Marco Franceschetti & Johann Eder

Authors
  1. Julius Köpke
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  2. Marco Franceschetti
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  3. Johann Eder
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Corresponding author

Correspondence to Julius Köpke .

Editor information

Editors and Affiliations

  1. Vienna University of Economics and Business, Vienna, Austria

    Claudio Di Ciccio

  2. University of Warsaw, Warsaw, Poland

    Renata Gabryelczyk

  3. Tecnológico de Monterrey, Monterrey, Mexico

    Luciano García-Bañuelos

  4. University of Zagreb, Zagreb, Croatia

    Tomislav Hernaus

  5. IBM T. J. Watson Research Center, Yorktown Heights, NY, USA

    Rick Hull

  6. University of Ljubljana, Ljubljana, Slovenia

    Mojca Indihar Štemberger

  7. Corvinus University of Budapest, Budapest, Hungary

    Andrea Kő

  8. Data61 (CSIRO) and UNSW, Eveleigh, NSW, Australia

    Mark Staples

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Köpke, J., Franceschetti, M., Eder, J. (2019). Balancing Privity and Enforceability of BPM-Based Smart Contracts on Blockchains. In: Di Ciccio, C., et al. Business Process Management: Blockchain and Central and Eastern Europe Forum. BPM 2019. Lecture Notes in Business Information Processing, vol 361. Springer, Cham. https://doi.org/10.1007/978-3-030-30429-4_7

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  • DOI: https://doi.org/10.1007/978-3-030-30429-4_7

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-30428-7

  • Online ISBN: 978-3-030-30429-4

  • eBook Packages: Computer ScienceComputer Science (R0)

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