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Chosen public key and ciphertext secure proxy re-encryption schemes

Journal Article


Abstract


  • A proxy re-encryption scheme enables a proxy to re-encrypt a ciphertext and designate it to a

    delegatee. Proxy re-encryption schemes have been found useful in many applications, including e-mail

    forwarding, law-enforcement monitoring, and content distribution. Libert and Vergnaud presented the

    first construction of unidirectional proxy re-encryption scheme with chosen ciphertext security in the

    standard model in PKC 2008. In this paper, we show the insecurity of Libert and Vergnaud's scheme

    against chosen public key attack. We note that this insecurity is not considered in the original model

    proposed by Libert and Vergnaud's, but we argue that our attack is very realistic and important in this

    scenario. Furthermore, we present a new and efficient construction proxy re-encryption (PRE) scheme.

    We provide chosen public key and chosen ciphertext attack security analysis for our scheme and

    compare their performance.

UOW Authors


  •   Ge, Chunpeng (external author)
  •   Fang, Liming (external author)
  •   Susilo, Willy
  •   Ren, Y R. (external author)
  •   Wang, Jiandong (external author)

Publication Date


  • 2010

Citation


  • Fang, L., Susilo, W., Ren, Y., Ge, C. & Wang, J. (2010). Chosen public key and ciphertext secure proxy re-encryption schemes. International Journal of Digital Content Technology and its Applications, 4 (9), 151-160.

Scopus Eid


  • 2-s2.0-78751542825

Ro Metadata Url


  • http://ro.uow.edu.au/infopapers/3529

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 151

End Page


  • 160

Volume


  • 4

Issue


  • 9

Abstract


  • A proxy re-encryption scheme enables a proxy to re-encrypt a ciphertext and designate it to a

    delegatee. Proxy re-encryption schemes have been found useful in many applications, including e-mail

    forwarding, law-enforcement monitoring, and content distribution. Libert and Vergnaud presented the

    first construction of unidirectional proxy re-encryption scheme with chosen ciphertext security in the

    standard model in PKC 2008. In this paper, we show the insecurity of Libert and Vergnaud's scheme

    against chosen public key attack. We note that this insecurity is not considered in the original model

    proposed by Libert and Vergnaud's, but we argue that our attack is very realistic and important in this

    scenario. Furthermore, we present a new and efficient construction proxy re-encryption (PRE) scheme.

    We provide chosen public key and chosen ciphertext attack security analysis for our scheme and

    compare their performance.

UOW Authors


  •   Ge, Chunpeng (external author)
  •   Fang, Liming (external author)
  •   Susilo, Willy
  •   Ren, Y R. (external author)
  •   Wang, Jiandong (external author)

Publication Date


  • 2010

Citation


  • Fang, L., Susilo, W., Ren, Y., Ge, C. & Wang, J. (2010). Chosen public key and ciphertext secure proxy re-encryption schemes. International Journal of Digital Content Technology and its Applications, 4 (9), 151-160.

Scopus Eid


  • 2-s2.0-78751542825

Ro Metadata Url


  • http://ro.uow.edu.au/infopapers/3529

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 151

End Page


  • 160

Volume


  • 4

Issue


  • 9