• DocumentCode
    1594513
  • Title

    On the Impossibility of Basing Identity Based Encryption on Trapdoor Permutations

  • Author

    Boneh, Dan ; Papakonstantinou, Periklis A. ; Rackoff, Charles ; Vahlis, Yevgeniy ; Waters, Brent

  • Author_Institution
    Stanford Univ., Stanford, CA
  • fYear
    2008
  • Firstpage
    283
  • Lastpage
    292
  • Abstract
    We ask whether an identity based encryption (IBE) system can be built from simpler public-key primitives. We show that there is no black-box construction of IBE from trapdoor permutations (TDP) or even from chosen ciphertext secure public key encryption (CCA-PKE). These black-box separation results are based on an essential property of IBE, namely that an IBE system is able to compress exponentially many public-keys into a short public parameters string.
  • Keywords
    public key cryptography; black-box separation; chosen ciphertext secure public key encryption; identity-based encryption system; public-key primitive; trapdoor permutation; Computer science; Identity-based encryption; Lattices; National security; Polynomials; Power system modeling; Power system security; Public key; Public key cryptography; Terrorism;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Foundations of Computer Science, 2008. FOCS '08. IEEE 49th Annual IEEE Symposium on
  • Conference_Location
    Philadelphia, PA
  • ISSN
    0272-5428
  • Print_ISBN
    978-0-7695-3436-7
  • Type

    conf

  • DOI
    10.1109/FOCS.2008.67
  • Filename
    4690962
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1594513