Waxaa la ogaaday in nidaamka loo yaqaano "Linear cryptanalysis" uu leeyahay 243 qoraal oo caadi ah (Matsui, 1993); habka ayaa la hirgeliyey (Matsui, 1994), waana kii ugu horreeyay ee tijaabo ah ee loo yaqaan "DES" oo la soo sheegay. Ma jiraan wax caddeyn ah oo muujinaya in DES loo habeeyay inuu u adkeysan karo noocan weerarka ah. Guud ahaan LC<unk>xisaabinta khadadka khadadka badan<unk>waxaa la soo jeediyay 1994 (Kaliski iyo Robshaw), waxaana sii wanaajiyay Biryukov iyo kuwa kale. (2004); Falanqayntoodu waxay soo jeedineysaa in qiyaaso badan oo toosan loo isticmaali karo si loo yareeyo shuruudaha xogta ee weerarka ugu yaraan 4 jeer (taasi waa, 241 halkii ay ka ahaan lahayd 243).
caddeyn la'aan