Fast reconstruction of clock-control sequence
W.G. Chambers, Jovan Dj. Golić · Electronics Letters · 2002
Two fast techniques for reconstructing the initial state of the clock-control shift register in the shrinking generator, one based on list decoding and the other on information set decoding, are investigated. Both start from computing the à posteriori probabilities for the clock-control bits from a known segment of the output sequence, under the assumption that the initial state of the clock-controlled shift register is already recovered.