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Authors: Mihaela Ion 1 ; Giovanni Russello 1 and Bruno Crispo 2

Affiliations: 1 CREATE-NET International Research Center, Italy ; 2 University of Trento, Italy

Keyword(s): Confidentiality, Publish/subscribe, Attribute-based encryption, Encrypted search.

Related Ontology Subjects/Areas/Topics: Access Control ; Cryptographic Techniques and Key Management ; Data and Systems Security ; Data Engineering ; Databases and Data Security ; Information and Systems Security ; Internet Technology ; Peer-To-Peer Security ; Public Key Crypto Applications ; Security in Distributed Systems ; Web Information Systems and Technologies

Abstract: Publish/subscribe is a loosely-coupled communication paradigm which allows applications to interact indirectly and asynchronously. Publisher applications generate events that are sent to interested applications through a network of brokers. Subscriber applications express their interests by specifying filters that brokers can use for routing the events. In many cases it is desirable to protect the confidentiality of events and filters from any unauthorised parties, including the brokers themselves. Supporting confidentiality of messages being exchanged is challenging mainly because of the decoupling of publishers and subscribers who should not have to share keys, and because brokers forward messages based on the actual content of the messages that we desire to keep confidential. This paper argues that a complete solution for confidentiality in pub/sub systems should provide: (i) confidentiality of events and filters; (ii) filters that can express very complex constraints on events ev en if brokers are not able to access any information on both events and filters; (iii) and finally it does not require publishers and subscribers to share keys. We show that current solutions are not able to provide all these properties at the same time and suggest a possible solution based on attribute-based encryption and encrypted search. (More)

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Paper citation in several formats:
Ion, M.; Russello, G. and Crispo, B. (2010). PROVIDING CONFIDENTIALITY IN CONTENT-BASED PUBLISH/SUBSCRIBE SYSTEMS. In Proceedings of the International Conference on Security and Cryptography (ICETE 2010) - SECRYPT; ISBN 978-989-8425-18-8; ISSN 2184-3236, SciTePress, pages 287-292. DOI: 10.5220/0002993602870292

@conference{secrypt10,
author={Mihaela Ion. and Giovanni Russello. and Bruno Crispo.},
title={PROVIDING CONFIDENTIALITY IN CONTENT-BASED PUBLISH/SUBSCRIBE SYSTEMS},
booktitle={Proceedings of the International Conference on Security and Cryptography (ICETE 2010) - SECRYPT},
year={2010},
pages={287-292},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002993602870292},
isbn={978-989-8425-18-8},
issn={2184-3236},
}

TY - CONF

JO - Proceedings of the International Conference on Security and Cryptography (ICETE 2010) - SECRYPT
TI - PROVIDING CONFIDENTIALITY IN CONTENT-BASED PUBLISH/SUBSCRIBE SYSTEMS
SN - 978-989-8425-18-8
IS - 2184-3236
AU - Ion, M.
AU - Russello, G.
AU - Crispo, B.
PY - 2010
SP - 287
EP - 292
DO - 10.5220/0002993602870292
PB - SciTePress

- Science and Technology Publications, Lda.
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