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Collusion-resistant convertible ring signature schemes

Journal Article


Abstract


  • A ring signature scheme provides signer ambiguity by hiding a signer in a ring of arbitrary members

    appropriately. A convertible ring signature scheme is an extension of a ring signature scheme that authenticates

    a signer and proves that a real signer and no one else generated a ring signature. In this paper, we first show

    that the recent convertible ring signature scheme proposed by Jeong et al. [16] is vulnerable to collusion attacks.

    Second, we present a formal security model for a convertible ring signature with collusion resistance. The

    security notion of a convertible ring signature is intrinsically different from that of an ordinary ring signature

    due to the conversion property. For our collusion resistance, we consider full key exposure, that is, even an

    adversary who knows all secret keys will not be able to break the collusion resistance. Finally, we construct a

    novel convertible ring signature scheme with collusion resistance and prove the security of the scheme in the

    presented security model. We also compare our scheme with the existing ring signature schemes in the literature

    to show its advantages.

UOW Authors


  •   Hwang, Jung Yeon (external author)
  •   Chang, Ku-Young (external author)
  •   Cho, Hyun Sook. (external author)
  •   Song, Boyeon (external author)
  •   Susilo, Willy

Publication Date


  • 2015

Citation


  • Hwang, J., Chang, K., Cho, H. Sook., Song, B. & Susilo, W. (2015). Collusion-resistant convertible ring signature schemes. Science China Information Sciences, 58 (1), 012108:1-012108:16.

Scopus Eid


  • 2-s2.0-84925465160

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3597

Has Global Citation Frequency


Start Page


  • 012108:1

End Page


  • 012108:16

Volume


  • 58

Issue


  • 1

Place Of Publication


  • China

Abstract


  • A ring signature scheme provides signer ambiguity by hiding a signer in a ring of arbitrary members

    appropriately. A convertible ring signature scheme is an extension of a ring signature scheme that authenticates

    a signer and proves that a real signer and no one else generated a ring signature. In this paper, we first show

    that the recent convertible ring signature scheme proposed by Jeong et al. [16] is vulnerable to collusion attacks.

    Second, we present a formal security model for a convertible ring signature with collusion resistance. The

    security notion of a convertible ring signature is intrinsically different from that of an ordinary ring signature

    due to the conversion property. For our collusion resistance, we consider full key exposure, that is, even an

    adversary who knows all secret keys will not be able to break the collusion resistance. Finally, we construct a

    novel convertible ring signature scheme with collusion resistance and prove the security of the scheme in the

    presented security model. We also compare our scheme with the existing ring signature schemes in the literature

    to show its advantages.

UOW Authors


  •   Hwang, Jung Yeon (external author)
  •   Chang, Ku-Young (external author)
  •   Cho, Hyun Sook. (external author)
  •   Song, Boyeon (external author)
  •   Susilo, Willy

Publication Date


  • 2015

Citation


  • Hwang, J., Chang, K., Cho, H. Sook., Song, B. & Susilo, W. (2015). Collusion-resistant convertible ring signature schemes. Science China Information Sciences, 58 (1), 012108:1-012108:16.

Scopus Eid


  • 2-s2.0-84925465160

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3597

Has Global Citation Frequency


Start Page


  • 012108:1

End Page


  • 012108:16

Volume


  • 58

Issue


  • 1

Place Of Publication


  • China