Fj$puam$iv$wtl$fal$

Rvg$gk$gru$hrv't$xyise$dfcu$jnwm$tfj$edy$dfc$wysk,
dt$qvivt$yig$aq$dcfh$fj$bos$tiq
nmy$br$bjxzddc$zb
ey$yfw$mshy$folyrkw$unkp$tfj$errji,
jb$rtf$puam$iftgazbb$ysu$wajp.

Buy$sfb$tm$umjryiv$lt$gp$grylxqqg$nk$dlmsx,
waineo$ir$rzruli$iqd$joxrsgsx$lt$xf$rfrje
br$rmv$gagqp$vijqzvhsq
tw$voanrt$etjebv$ysu$sapyzmv,
sskqo$gy$krmcx$br$qjvu$a$gfzlne$yiqgcw-wq.

Ateawalyzvh$N.$Kdvykp$

Kasiski analysis 1 
automated  Kasiski analysis
statistical  key length estimation
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