A New Fast Algorithm for Discrete Fractional Hadamard Transform

Using Hadamard transform for cryptanalysis of pseudo-random generators in stream ciphers

“…The Hadamard Transform is perhaps the best known of non-sinusoidal orthogonal transformation. The Hadamard Transform has gained prominence in applications in the processing of digital signals [26], because it only uses sums and subtractions to compute. Therefore, its implementation in hardware is very efficient.…”