Abstract
In this paper, we propose a notion of flexible attribute-based encryption. Flexible attribute-based encryption is a variant of ciphertext-policy ABE, which allows one to loosen a decryption policy underlying a given ciphertext, if one knows some system-wide trapdoor information, without knowing its underlying plaintext message. We give a concrete construction of the flexible attribute-based encryption that satisfies indistinguishability under the loosening operation, based on the construction of ciphertext-policy ABE given by Bethencourt, Sahai and Waters. © 2012 Springer-Verlag.
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CITATION STYLE
Arita, S. (2012). Flexible attribute-based encryption. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7618 LNCS, pp. 471–478). https://doi.org/10.1007/978-3-642-34129-8_46
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