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Authors: Georg Bramm ; Mark Gall and Julian Schütte

Affiliation: Fraunhofer AISEC, Garching near Munich and Germany

ISBN: 978-989-758-319-3

Keyword(s): Blockchain, Attribute based Encryption, Key Revocation, Key Issuing, Key Management, Cryptographic Access Control.

Related Ontology Subjects/Areas/Topics: Access Control ; Applied Cryptography ; Cryptographic Techniques and Key Management ; Data and Application Security and Privacy ; Data Engineering ; Data Protection ; Databases and Data Security ; Information and Systems Security ; Internet Technology ; Privacy ; Privacy Enhancing Technologies ; Security and Privacy in the Cloud ; Security in Distributed Systems ; Web Information Systems and Technologies

Abstract: Attribute Based Encryption (ABE) denotes asymmetric cryptographic schemes where key pairs are created for attribute owners and often applied to realize a fine-grained, cryptographic access control mechanism for outsourced data. Despite the benefits of ABE systems, there are still drawbacks when ABE systems are transformed into real world applications. Mainly, ABE systems suffer from non-efficiency or non-existence of revocation mechanisms and user key coordination problems. By introducing a consensus driven approach, we try to mitigate these issues in distributed systems. In this paper, we propose a collaborative attribute management protocol for Ciphertext-policy attribute-based encryption (CP-ABE) schemes based on our own scheme called a Blockchain-based Distributed Attribute Based Encryption (BDABE) scheme. Our construction realizes distributed issue, storage and revocation of private attribute keys by adding a consensus driven infrastructure, a blockchain. We enhance both security and efficiency of key management in distributed CP-ABE systems for the application of cloud data sharing. (More)

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Paper citation in several formats:
Bramm, G.; Gall, M. and Schütte, J. (2018). BDABE - Blockchain-based Distributed Attribute based Encryption.In Proceedings of the 15th International Joint Conference on e-Business and Telecommunications - Volume 2 SECRYPT: SECRYPT, ISBN 978-989-758-319-3, pages 99-110. DOI: 10.5220/0006852602650276

@conference{secrypt18,
author={Georg Bramm. and Mark Gall. and Julian Schütte.},
title={BDABE - Blockchain-based Distributed Attribute based Encryption},
booktitle={Proceedings of the 15th International Joint Conference on e-Business and Telecommunications - Volume 2 SECRYPT: SECRYPT,},
year={2018},
pages={99-110},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006852602650276},
isbn={978-989-758-319-3},
}

TY - CONF

JO - Proceedings of the 15th International Joint Conference on e-Business and Telecommunications - Volume 2 SECRYPT: SECRYPT,
TI - BDABE - Blockchain-based Distributed Attribute based Encryption
SN - 978-989-758-319-3
AU - Bramm, G.
AU - Gall, M.
AU - Schütte, J.
PY - 2018
SP - 99
EP - 110
DO - 10.5220/0006852602650276

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