A ciphertext-policy attribute-based encryption scheme with constant ciphertext length

descriptionPublicationkeyboard_double_arrow_right Article , Part of book or chapter of book , Conference object 01 Jan 2009 English Publisher:Inderscience PublishersJournal:International Journal of Applied Cryptography, volume 2, page 46 (issn: 1753-0563, eissn: 1753-0571,

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Authors: Keita Emura; Atsuko Miyaji; Kazumasa Omote; Akito Nomura; Masakazu Soshi;

doi: 10.1504/ijact.2010.033798 , 10.1007/978-3-642-00843-6_2

A ciphertext-policy attribute-based encryption scheme with constant ciphertext length

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Abstract

An Attribute-Based Encryption (ABE) is an encryption scheme, where users with some attributes can decrypt ciphertexts associated with these attributes. However, the length of the ciphertext depends on the number of attributes in previous ABE schemes. In this paper, we propose a new Ciphertext-Policy Attribute-Based Encryption (CP-ABE) with constant ciphertext length. Moreover, the number of pairing computations is also constant.

Related Organizations

Japan Advanced Institute of Science and Technology
Japan
Kanazawa University
Japan
Hiroshima City University
Japan

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