Description of F-FCSR-8 and F-FCSR-H stream ciphers
François Arnault, Thierry Pierre Berger, Cédric Lauradoux · 2005
Our Filtered FCSR stream ciphers are based on a very simple mechanism: the output is obtained by filtering internal states of an FCSR automaton using linear Boolean functions. A full description of the method is given in Section 1. Some more extensive documentation could be find in enclosed references [1, 2, 3].