A discrete logarithm-based approach to compute low-weight multiples of binary polynomials

نویسندگان

  • Pietro Peterlongo
  • Massimiliano Sala
  • Claudia Tinnirello
چکیده

Being able to compute efficiently a low-weight multiple of a given binary polynomial is often a key ingredient of correlation attacks to LFSR-based stream ciphers. The best known general purpose algorithm is based on the generalized birthday problem. We describe an alternative approach which is based on discrete logarithms and has much lower memory complexity requirements with a comparable time complexity.

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عنوان ژورنال:
  • Finite Fields and Their Applications

دوره 38  شماره 

صفحات  -

تاریخ انتشار 2016