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Murda Vigenere’i šifri abil moodustatud krüptogramm, mille avatekst on
eeldatavasti inglisekeelne:
XYXXWYXXLTYAUCWRLWWIPPCXITEEPRMTSTSEJONNOSPPTHLKSYGHSTERSIMJRNPZVTHGSBSETSVOCXVKJKZXRXNSVKGPPBSYRDKZVSGZXGVMMSZILVLTDJXIILFJKCSKFTLOKEKXILUGIKKJSZYYJMTJKKIEFFATACSRYZKXVITYAUCECTXKKHWDXSLUUXYXISTVIILTXHPXKEJSTSFPMMWOGWVEKATIIIXXLXPXYXWLNTCUBXUUKIITXGACHIXFKUCXFKZFGLEPUDJKPPZSNFMILRMBZGIMKFFCKHWVGXWLDVKAJEZDHFWJHKCHJHSONPXZMBARAQRDJKKCWVYTJUILVKXLUSSRGILNPXREQGLILVHYZKGWTTSFUIMTXYZOHXFHJNKCEHNNLKQVROJKUAHZXWEGNTIXKWXISINSJGILVKYZGCLVKTAIPPCRGMZESZGYDKHWCRIAKIVPBSYZDWKXRLNTSEVTEOCKKBIWGAPSRMASHICYYZAHAVVTMRSMDTLATTAZMMGAIGFGYJGSMTMNGTPGZKHMSHXRGHWOCAYBHZGCEIFDSRASWPMGYTQVFGWXHEIXGJGKIWEJWYPXKHUKVTIUUJXUGIKAJWTTQPFFCKHEDHAWOUXYXXGRSMVKXJKPPCRFJKQVROJLNTRKANKYJVVEDAYCXKAJGAIGFFJSTNSWMMWSLEEMJVKPGYPTMRSLROJHXTJVKWWJILRMFDRHXRGISTSJZZMLCWEKPJZGKIYXWWZWIEBXSIPWVBSONXGYMMWOCXVKFUZXSEHKEGCCZGIABXHLTQDEGEKBTFGAHVVNKODRDTPATVTIHHWYHIJHSWVGSTXXKVTVJHQVOTVGKTVARIJTSGAIGFFJATIIEWJVHNRFHSWSDWKTWEOTWKKDLUPZFBILNXWGKTTRTQANXLGHGFKYWFSMULNFITXYXDUGCXLLZSRACDTPWXTXIXFLVWCJBHSRACZFUGYHMSEJLNTCDTPWOIITHSGSXGREQQOBTFLXAHAIKAJQYWSFMIWYTVKXWKZWIELYSTSMEZFFJUMXAYATVMJXFUNHSCWNWXHMEWNNOSYREQQXPXZHSSRRSLKXWUUETMNGTPJKXWSRAFVVFMYTXYXHGYISWKZFTXRXBXKAGIKHGWGIPVTXLGHLZZMSYILVVTKZDJJMFQOCK
Klassiski test:
Sõne XYX kordub kuues kohas positsioonidel: 1, 190, 232, 631, 939, 1121.
XYXXWYXXLTYAUCWRLWWIPPCXITEEPRMTSTSEJONNOSPPTHLKSYGHSTERSIMJRNPZVTHGSBSETSVOCXVKJKZXRXNSVKGPPBSYRDKZVSGZXGVMMSZILVLTDJXIILFJKCSKFTLOKEKXILUGIKKJSZYYJMTJKKIEFFATACSRYZKXVITYAUCECTXKKHWDXSLUUXYXISTVIILTXHPXKEJSTSFPMMWOGWVEKATIIIXXLXPXYXWLNTCUBXUUKIITXGACHIXFKUCXFKZFGLEPUDJKPPZSNFMILRMBZGIMKFFCKHWVGXWLDVKAJEZDHFWJHKCHJHSONPXZMBARAQRDJKKCWVYTJUILVKXLUSSRGILNPXREQGLILVHYZKGWTTSFUIMTXYZOHXFHJNKCEHNNLKQVROJKUAHZXWEGNTIXKWXISINSJGILVKYZGCLVKTAIPPCRGMZESZGYDKHWCRIAKIVPBSYZDWKXRLNTSEVTEOCKKBIWGAPSRMASHICYYZAHAVVTMRSMDTLATTAZMMGAIGFGYJGSMTMNGTPGZKHMSHXRGHWOCAYBHZGCEIFDSRASWPMGYTQVFGWXHEIXGJGKIWEJWYPXKHUKVTIUUJXUGIKAJWTTQPFFCKHEDHAWOUXYXXGRSMVKXJKPPCRFJKQVROJLNTRKANKYJVVEDAYCXKAJGAIGFFJSTNSWMMWSLEEMJVKPGYPTMRSLROJHXTJVKWWJILRMFDRHXRGISTSJZZMLCWEKPJZGKIYXWWZWIEBXSIPWVBSONXGYMMWOCXVKFUZXSEHKEGCCZGIABXHLTQDEGEKBTFGAHVVNKODRDTPATVTIHHWYHIJHSWVGSTXXKVTVJHQVOTVGKTVARIJTSGAIGFFJATIIEWJVHNRFHSWSDWKTWEOTWKKDLUPZFBILNXWGKTTRTQANXLGHGFKYWFSMULNFITXYXDUGCXLLZSRACDTPWXTXIXFLVWCJBHSRACZFUGYHMSEJLNTCDTPWOIITHSGSXGREQQOBTFLXAHAIKAJQYWSFMIWYTVKXWKZWIELYSTSMEZFFJUMXAYATVMJXFUNHSCWNWXHMEWNNOSYREQQXPXZHSSRRSLKXWUUETMNGTPJKXWSRAFVVFMYTXYXHGYISWKZFTXRXBXKAGIKHGWGIPVTXLGHLZZMSYILVVTKZDJJMFQOCK
Positsioonide vahed on 189, 231, 630, 938, 1120
Et SÜT(189, 231, 630, 938, 1120)=7, siis võib oletada, et võtme pikkus m = 7.
Y1:XXWPPEPYSZSXRPKGLISEIYICVEWXIXFWIXCIHXEPLMWVHHXQWLSXLWMXEVHTSLLPSWVWSKPIAMAGMGXAESQEIXIIQEXMPVRVXGSEGLJLXJEIIWGXSCHEHRTISVVIGIRWWZWQGMXXCXCCMCIGTISVIMMMSMYXSEJFXSRIPLLJK
Y2:YLRCRJPGIVEVXPZVVIKKKJESICDYIKPVIYUIIFPZRKVKFJZRVVRRVTTFHRZIIVVCZCPKEKSCVDZFTZRYIWVIWKUKPDYVCRKVKFWEYRVRRZKYEVYVEZLKVDIJTJGJFEFKKFGAFUYLDIJZSDTRFKFKEEXJCERZLTKVYWXKVZVJ
Y3:XTLXMOTHMTTKNBVMLLFXKMFRTTXXLEMEXXBTXKUSMFGAWHMDYKGEHTXHNOXXNKKRGRBXVBRYVTMGMKGBFPFXEHUAFHXKROAEAFMMPOKMGZPXBBMKHGTBVTHHXHKTFWHTKBKNKLXLTXBFETHELAMXLZAXWWEHKMXVXKBHTZVM

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