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Atomic Information Disclosure of Off-Chained Computations Using Threshold Encryption

Stengele, Oliver; Hartenstein, Hannes

Public Blockchains on their own are, by definition, incapable of keeping data private and disclosing it at a later time. Control over the eventual disclosure of private data must be maintained outside a Blockchain by withholding and later publishing encryption keys, for example. We propose the Atomic Information Disclosure (AID) pattern based on threshold encryption that allows a set of key holders to govern the release of data without having access to it. We motivate this pattern with problems that require independently reproduced solutions. By keeping submissions private until a deadline expires, participants are unable to plagiarise and must therefore generate their own solutions which can then be aggregated and analysed to determine a final answer. We outline the importance of a game-theoretically sound incentive scheme, possible attacks, and other future work.

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Postprint §
DOI: 10.5445/IR/1000085738
Veröffentlicht am 17.09.2018
DOI: 10.1007/978-3-030-00305-0_7
Seitenaufrufe: 76
seit 17.09.2018
Downloads: 47
seit 18.09.2018
Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Kompetenzzentrum für angewandte Sicherheitstechnologie (KASTEL)
Publikationstyp Proceedingsbeitrag
Jahr 2018
Sprache Englisch
Identifikator ISBN: 978-3-030-00305-0
ISSN: 0302-9743, 1611-3349
KITopen-ID: 1000085738
Erschienen in Data Privacy Management, Cryptocurrencies and Blockchain Technology – ESORICS 2018 International Workshops, DPM 2018 and CBT 2018, Barcelona, Spain, September 6-7, 2018, Proceedings. Ed.: J. Garcia-Alfaro
Verlag Springer International Publishing, Cham
Seiten 85–93
Serie Lecture Notes in Computer Science
Projektinformation KASTEL_ISE (BMBF, 16KIS0754)
Bemerkung zur Veröffentlichung
Vorab online veröffentlicht am 07.09.2018
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