Fully Secure Ciphertext-Policy Attribute-Based Encryption in Prime Order Group

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Abstract:

We present a fully secure ciphertext-policy attribute-based encryption (CP-ABE) scheme in prime order group by using a tool which can convert composite order paring-based encryption scheme into prime order one. Although, a fully secure CP-ABE scheme in prime order group has been proposed recently, our scheme needs less master secret key size and can be seen as a different version of it. Besides, the sketch of our scheme's security proof is also given.

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2920-2923

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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