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Journal of Cryptology

, Volume 20, Issue 1, pp 3–37 | Cite as

Another Look at "Provable Security"

  • Neal Koblitz
  • Alfred J. Menezes
Article

Abstract

We give an informal analysis and critique of several typical "provable security" results. In some cases there are intuitive but convincing arguments for rejecting the conclusions suggested by the formal terminology and "proofs," whereas in other cases the formalism seems to be consistent with common sense. We discuss the reasons why the search for mathematically convincing theoretical evidence to support the security of public-key systems has been an important theme of researchers. However, we argue that the theorem-proof paradigm of theoretical mathematics is often of limited relevance here and frequently leads to papers that are confusing and misleading. Because our paper is aimed at the general mathematical public, it is self-contained and as jargon-free as possible.

Keywords

Hash Function Signature Scheme Random Oracle Discrete Logarithm Random Oracle Model 
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 2005

Authors and Affiliations

  1. 1.Department of Mathematics, Box 354350, University of Washington, Seattle, WA 98195USA
  2. 2.Department of Combinatorics & Optimization, University of Waterloo, Waterloo, Ontario, N2L 3G1Canada

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