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TITLE:
Flexible attribute-based encryption applicable to secure e-healthcare records - imarina:3657919

URV's Author/s:Domingo Ferrer, Josep
Author, as appears in the article.:Qin B; Deng H; Wu Q; Domingo-Ferrer J; Naccache D; Zhou Y
Author's mail:josep.domingo@urv.cat
Author identifier:0000-0001-7213-4962
Journal publication year:2015
Publication Type:Journal Publications
ISSN:16155262
APA:Qin B; Deng H; Wu Q; Domingo-Ferrer J; Naccache D; Zhou Y (2015). Flexible attribute-based encryption applicable to secure e-healthcare records. International Journal Of Information Security, 14(6), 499-511. DOI: 10.1007/s10207-014-0272-7
Papper original source:International Journal Of Information Security. 14 (6): 499-511
Abstract:In e-healthcare record systems (EHRS), attribute-based encryption (ABE) appears as a natural way to achieve fine-grained access control on health records. Some proposals exploit key-policy ABE (KP-ABE) to protect privacy in such a way that all users are associated with specific access policies and only the ciphertexts matching the users¿ access policies can be decrypted. An issue with KP-ABE is that it requires an a priori formulation of access policies during key generation, which is not always practicable in EHRS because the policies to access health records are sometimes determined after key generation. In this paper, we revisit KP-ABE and propose a dynamic ABE paradigm, referred to as access policy redefinable ABE (APR-ABE). To address the above issue, APR-ABE allows users to redefine their access policies and delegate keys for the redefined ones; hence, a priori precise policies are no longer mandatory. We construct an APR-ABE scheme with short ciphertexts and prove its full security in the standard model under several static assumptions.
Article's DOI:10.1007/s10207-014-0272-7
Link to the original source:https://link.springer.com/article/10.1007%2Fs10207-014-0272-7
Papper version:info:eu-repo/semantics/submittedVersion
licence for use:https://creativecommons.org/licenses/by/3.0/es/
Department:Enginyeria Informàtica i Matemàtiques
Licence document URL:https://repositori.urv.cat/ca/proteccio-de-dades/
Thematic Areas:Software
Safety, risk, reliability and quality
Matemática / probabilidade e estatística
Information systems
Engenharias iv
Computer science, theory & methods
Computer science, software engineering
Computer science, information systems
Computer networks and communications
Ciência da computação
Keywords:Privacy
Cryptography
Entity:Universitat Rovira i Virgili
Record's date:2024-09-07
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