Print Email Facebook Twitter O3HSC Title O3HSC: Outsourced Online/Offline Hybrid Signcryption for Wireless Body Area Networks Author Liu, Suhui (Southeast University) Chen, Liquan (Southeast University) Wang, Huaqun (Nanjing University of Posts and Telecommunications) Fu, S. (TU Delft Cyber Security) Shi, Lin (Southeast University) Date 2022 Abstract Wireless body area networks (WBAN) enable ubiquitous monitoring of patients, which can change the future of healthcare services overwhelmingly. As the collected data of patients usually contain sensitive information, how to collect, transfer, store and share data securely and properly has become a concerning issue. Attribute-based encryption (ABE) can achieve data confidentiality and fine-grained access control simultaneously. Identity-based ring signature (IBRS) allows patients to prove their identity without leaking any extra (private) information. However, the heavy computational burden of ABE and IBRS is intolerable for most power-limited mobile devices, which account for a large proportion of WBAN devices. This paper combines the attribute-based online/offline encryption (ABOOE) and IBRS to achieve an outsourced online/offline hybrid signcryption ( O3 HSC) scheme. As far as we know, this scheme is the first signcryption scheme that adopts IBRS and satisfies online/offline signcryption simultaneously. O3 HSC divides the key generation and signcryption into offline and online phases to increase the throughput of the central authority and save the power resources of mobile devices, respectively. Besides, outsourced decryption and public signature verification are also realized. O3 HSC achieves security under CCA and CMIA, and the performance analysis shows that O3 HSC is a lightweight and applicable scheme for WBAN. Subject Attribute-based online/offline encryptionidentity-based ring signatureoutsourced decryptionwireless body area network To reference this document use: http://resolver.tudelft.nl/uuid:10b85d45-d3dd-4ec1-b9d2-3f4d37663c7a DOI https://doi.org/10.1109/TNSM.2022.3153485 Embargo date 2023-07-01 ISSN 1932-4537 Source IEEE Transactions on Network and Service Management, 19 (3), 2421-2433 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 Suhui Liu, Liquan Chen, Huaqun Wang, S. Fu, Lin Shi Files PDF OHSC_Outsourced_Online_Of ... tworks.pdf 1.66 MB Close viewer /islandora/object/uuid:10b85d45-d3dd-4ec1-b9d2-3f4d37663c7a/datastream/OBJ/view