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Efficient ciphertext policy attribute based encryption under decisional linear assumption

Conference Paper


Abstract


  • We propose a new Ciphertext Policy Attribute Based En-

    cryption (CP-ABE) scheme where access structures are de-

    ned by AND-Gates with wildcards. One major dierence

    between our scheme and the existing ones is that we can

    use a single element to represent one attribute, while the

    previous schemes require three dierent elements to repre-

    sent the three possible values (namely positive, negative,

    and wildcard) of an attribute. Our proposed scheme also

    achieves both constant-size ciphertext and constant num-

    ber of decryption operations, and is proven secure under the

    standard Decision Linear Assumption.

Publication Date


  • 2014

Citation


  • Tran, P. Viet Xuan., Yang, G. & Susilo, W. (2014). Efficient ciphertext policy attribute based encryption under decisional linear assumption. ACM CCS 2014 (pp. 1-3).

Scopus Eid


  • 2-s2.0-84910657260

Has Global Citation Frequency


Start Page


  • 1

End Page


  • 3

Abstract


  • We propose a new Ciphertext Policy Attribute Based En-

    cryption (CP-ABE) scheme where access structures are de-

    ned by AND-Gates with wildcards. One major dierence

    between our scheme and the existing ones is that we can

    use a single element to represent one attribute, while the

    previous schemes require three dierent elements to repre-

    sent the three possible values (namely positive, negative,

    and wildcard) of an attribute. Our proposed scheme also

    achieves both constant-size ciphertext and constant num-

    ber of decryption operations, and is proven secure under the

    standard Decision Linear Assumption.

Publication Date


  • 2014

Citation


  • Tran, P. Viet Xuan., Yang, G. & Susilo, W. (2014). Efficient ciphertext policy attribute based encryption under decisional linear assumption. ACM CCS 2014 (pp. 1-3).

Scopus Eid


  • 2-s2.0-84910657260

Has Global Citation Frequency


Start Page


  • 1

End Page


  • 3