Linear Approximations of Pseudo-Hadamard Transform[J]. Chinese Journal of Electronics, 2012, 21(4): 715-718.
Citation: Linear Approximations of Pseudo-Hadamard Transform[J]. Chinese Journal of Electronics, 2012, 21(4): 715-718.

Linear Approximations of Pseudo-Hadamard Transform

  • Received Date: 2011-04-01
  • Rev Recd Date: 2011-05-01
  • Publish Date: 2012-10-25
  • In FSE 2003, Johan Wall′en proposed efficient log-time algorithms for computing linear approximations of addition modulo 2n. They posed that his algorithms can be generalized to more complex functions such as Pseudo-Hadamard Transform, but didn’t to the readers. In this paper, we present a formula for computing linear correlation of Pseudo-Hadamard Transform.
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