Security Analysis of a Variant of Self-Shrinking Generator

  • Authors:
  • Dong Hoon Lee;Je Hong Park;Jae Woo Han

  • Affiliations:
  • -;-;-

  • Venue:
  • IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
  • Year:
  • 2008

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Abstract

A variant of the self-shrinking generator (SSG) proposed at ICISC 2006, which we call SSG-XOR, was claimed to have better cryptographic properties than SSG in a practical setting. It was also claimed that SSG-XOR will be more secure than SSG. But we show that SSG-XOR has no advantage over SSG from the viewpoint of practical cryptanalysis, especially the guess-and-determine attack.