DECIM, a new stream cipher for hardware applications
Côme Berbain, Billet, Anne Canteaut, Nicolas T. Courtois, Henri Gilbert, Louis Goubin, Aline Gouget, Louis Granboulan, Cédric Lauradoux, Marine Minier, Thomas Pornin, Hervé Sibert · UCL Discovery (University College London) · 2005
Decim is a new stream cipher designed for hardware applications with restricted resources. The design of the cipher is based on both a nonlinear filter LFSR and an irregular decimation mechanism recently introduced and called the ABSG. Apart from the security aspects, the design goal is to produce a stream cipher with a compact hardware implementation and operating at high rates. Excluding the tricky case of Time-Memory-Data trade-off attacks, the best attacks that have been identified by the authors are at least as difficult as exhaustive search.