In cryptography, F-FCSR is a stream cipher developed by Thierry Berger, François Arnault, and Cédric Lauradoux. The core of the cipher is a Feedback with Carry Shift Register (FCSR) automaton, which is similar to a LFSR, but they perform operations with carries so their transition function is nonlinear.
F-FCSR was one of the eight algorithms selected for the eCRYPT network's eSTREAM Portfolio, but it was later removed because further analysis showed weaknesses.[1]
References
[edit]- ^ Hell, Martin; Johansson, Thomas (2008). "Breaking the F-FCSR-H stream cipher in Real Time" (PDF). In Pieprzyk, Josef (ed.). Lecture Notes in Computer Science. ASIACRYPT 2008. Vol. 5350. Springer Berlin / Heidelberg. pp. 557–569. doi:10.1007/978-3-540-89255-7_34.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction