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Formal Security Proofs for a Signature Scheme with Partial Message Recovery

  • Daniel R. L. Brown
  • Don B. Johnson
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2020)

Abstract

The Pintsov-Vanstone signature scheme with partial message recovery (PVSSR) is a signature scheme with low message expansion (overhead) and variable length recoverable and non-recoverable message parts. The scheme uses three cryptographic primitives: a symmetric cipher, hash function and an elliptic curve group. We give three security proofs for PVSSR in this paper. Each proof makes a concrete and necessary assumption about one primitive, and models the other two primitives by idealizations. Thus, PVSSR with a strong cipher may offer greater security than other common variants of ElGamal signatures.

Keywords

Hash Function Signature Scheme Random Oracle Discrete Logarithm Problem Security Proof 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Daniel R. L. Brown
    • 1
  • Don B. Johnson
    • 1
  1. 1.Certicom ResearchCanada

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