A Unified Scheme of Hierarchical Attribute-Based Encryption
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064


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Research Paper | Computer Science & Engineering | India | Volume 3 Issue 6, June 2014

A Unified Scheme of Hierarchical Attribute-Based Encryption

Syeda Husna Mehanoor, Syeda Ayesha Thainiath

Cloud computing; as an emerging computing paradigm; enables users to remotely store their data into a cloud so as to enjoy scalable services on-demand. Especially for small and medium-sized enterprises with limited budgets; they can achieve cost savings and productivity enhancements by using cloud-based services to manage projects; to make collaborations; and the like. However; allowing cloud service providers (CSPs) ; which are not in the same trusted domains as enterprise users; to take care of confidential data; may raise potential security and privacy issues. To keep the sensitive user data confidential against untrusted CSPs; a natural way is to apply cryptographic approaches; by disclosing decryption keys only to authorized users. However; when enterprise users outsource confidential data for sharing on cloud servers; the adopted encryption system should not only support fine-grained access control; but also provide high performance; full delegation; and scalability; so as to best serve the needs of accessing data anytime and anywhere; delegating within enterprises; and achieving a dynamic set of users. In this paper; we propose a scheme to help enterprises to efficiently share confidential data on cloud servers. We achieve this goal by first combining the hierarchical identity-based encryption (HIBE) system and the ciphertext-policy attribute-based encryption (CP-ABE) system; and then making a performance-expressivity tradeoff; finally applying proxy re-encryption and lazy re-encryption to our scheme.

Keywords: Cloud Service Provider CSP, Hierarchical identity-based encryption HIBE, Ciphertext-policy attribute- based encryption

Edition: Volume 3 Issue 6, June 2014

Pages: 2618 - 2620

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How to Cite this Article?

Syeda Husna Mehanoor, Syeda Ayesha Thainiath, "A Unified Scheme of Hierarchical Attribute-Based Encryption", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=2014548, Volume 3 Issue 6, June 2014, 2618 - 2620

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