An Identity Based Encryption Scheme Based on Quadratic Residues

  • Clifford Cocks
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2260)

Abstract

We present a novel public key cryptosystem in which the public key of a subscriber can be chosen to be a publicly known value, such as his identity. We discuss the security of the proposed scheme, and show that this is related to the difficulty of solving the quadratic residuosity problem

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References

  1. 1.
    C Cocks Split Generation of RSA Parameters with Multiple Participants Proceedings of 6th IMA conference on Cryptography and Coding, Springer LNCS 1355.Google Scholar
  2. 2.
    H Cohen A Course in Computational Algebraic Number Theory Springer-Verlag graduate texts in mathematics 138, 1993Google Scholar
  3. 3.
    D Boneh, M Franklin Identity-Based Encryption from the Weil Pairing Advances in Cryptology — Crypto2001, Springer LNCS 2139Google Scholar
  4. 4.
    A. Shamir Identity Based Cryptosystems and Signature Schemes Advances in Cryptology — Proceedings of Crypto’ 84.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Clifford Cocks
    • 1
  1. 1.Communications-Electronics Security GroupCheltenham

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