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Perfect Local Randomness in Pseudo-random Sequences

  • Ueli M. Maurer
  • James L. Massey
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 435)

Abstract

The concept of provable cryptographic security for pseudo-random number generators that was introduced by Schnorr is investigated and extended. The cryptanalyst is assumed to have infinite computational resources and hence the security of the generators does not rely on any unproved hypothesis about the difficulty of solving a certain problem, but rather relies on the assumption that the number of bits of the generated sequence the enemy can access is limited. The concept of perfect local randomness of a sequence generator is introduced and investigated using some results from coding theory. The theoretical and practical cryptographic implications of this concept are discussed. Possible extensions of the concept of local randomness as well as some applications are proposed.

Keywords

Linear Code Block Cipher Stream Cipher Dual Code Codeword Length 
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 1990

Authors and Affiliations

  • Ueli M. Maurer
    • 1
  • James L. Massey
    • 1
  1. 1.Institute for Signal and Information ProcessingSwiss Federal Institute of TechnologyZürichSwitzerland

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