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Attribute Based Broadcast Encryption with Short Ciphertext and Decryption Key

Conference Paper


Abstract


  • Attribute Based Broadcast Encryption (ABBE) is a combination

    of Attribute Based Encryption (ABE) and Broadcast Encryption

    (BE). It allows a broadcaster (or encrypter) to broadcast an encrypted

    message that can only be decrypted by the receivers who are within a predefined

    user set and satisfy the access policy specified by the broadcaster.

    Compared with normal ABE, ABBE allows direct revocation, which is

    important in many real-time broadcasting applications such as Pay TV.

    In this paper, we propose two novel ABBE schemes that have distinguishing

    features: the first scheme is key-policy based and has short ciphertext

    and constant size decryption key; and the second one is ciphertext-policy

    based and has constant size ciphertext and short decryption key. Both of

    our schemes allow access policies to be expressed using AND-gate with

    positive, negative, and wildcard symbols, and are proven secure under

    the Decision n-BDHE assumption without random oracles.

UOW Authors


  •   Phuong, Tran Viet Xuan. (external author)
  •   Yang, Guomin (external author)
  •   Susilo, Willy
  •   Chen, Xiaofeng (external author)

Publication Date


  • 2015

Citation


  • Phuong, T. Viet Xuan., Yang, G., Susilo, W. & Chen, X. (2015). Attribute Based Broadcast Encryption with Short Ciphertext and Decryption Key. In G. Pernul, P. Y.A. Ryan & E. Weippl (Eds.), 20th European Symposium On Research In Computer Security: ESORICS 2015 (pp. 252-269). Cham, Switzerland: Springer.

Scopus Eid


  • 2-s2.0-84951786053

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1268

Start Page


  • 252

End Page


  • 269

Place Of Publication


  • Cham, Switzerland

Abstract


  • Attribute Based Broadcast Encryption (ABBE) is a combination

    of Attribute Based Encryption (ABE) and Broadcast Encryption

    (BE). It allows a broadcaster (or encrypter) to broadcast an encrypted

    message that can only be decrypted by the receivers who are within a predefined

    user set and satisfy the access policy specified by the broadcaster.

    Compared with normal ABE, ABBE allows direct revocation, which is

    important in many real-time broadcasting applications such as Pay TV.

    In this paper, we propose two novel ABBE schemes that have distinguishing

    features: the first scheme is key-policy based and has short ciphertext

    and constant size decryption key; and the second one is ciphertext-policy

    based and has constant size ciphertext and short decryption key. Both of

    our schemes allow access policies to be expressed using AND-gate with

    positive, negative, and wildcard symbols, and are proven secure under

    the Decision n-BDHE assumption without random oracles.

UOW Authors


  •   Phuong, Tran Viet Xuan. (external author)
  •   Yang, Guomin (external author)
  •   Susilo, Willy
  •   Chen, Xiaofeng (external author)

Publication Date


  • 2015

Citation


  • Phuong, T. Viet Xuan., Yang, G., Susilo, W. & Chen, X. (2015). Attribute Based Broadcast Encryption with Short Ciphertext and Decryption Key. In G. Pernul, P. Y.A. Ryan & E. Weippl (Eds.), 20th European Symposium On Research In Computer Security: ESORICS 2015 (pp. 252-269). Cham, Switzerland: Springer.

Scopus Eid


  • 2-s2.0-84951786053

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1268

Start Page


  • 252

End Page


  • 269

Place Of Publication


  • Cham, Switzerland