My first Variant Beaufort
Introduction
This is a repeating-key Variant Beaufort cipher. Begin by estimating the period from repeated-sequence spacings, then inspect the corresponding Periodic columns. Each column uses one Key letter. Make a likely plaintext-letter guess from frequency or a reliable crib, number A as 0 through Z as 25, and subtract the ciphertext value from the guessed plaintext value modulo 26; the result is that column's candidate Key letter. Assemble the letters in column order, enter the candidate in Variant Beaufort transform, choose Decrypt, and Run. If only particular periodic positions fail, revise those column letters; if every column is weak, reconsider the period. Submit only when the Result reads correctly throughout.
Find recurring Latin-letter groups and their gaps.
FNWpositions 91, 221, 324, 476, 491gaps 130, 103, 152, 15AQGpositions 170, 185, 205, 435gaps 15, 20, 230GWYpositions 68, 218, 488, 523gaps 150, 270, 35LOQpositions 114, 149, 654, 809gaps 35, 505, 155LPApositions 39, 54, 559, 784gaps 15, 505, 225NWLpositions 92, 222, 477, 492gaps 130, 255, 15PAWpositions 40, 55, 560, 785gaps 15, 505, 225QGSpositions 171, 186, 206, 436gaps 15, 20, 230ATNpositions 270, 295, 775gaps 25, 480CLKpositions 79, 194, 229gaps 115, 35FAQpositions 184, 204, 434gaps 20, 230FQDpositions 501, 576, 736gaps 75, 160Rxq qvga mwef Ezjpmws
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jlxjsavzbgaw irsz vzn eaeqm
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lhhoqaswef rlhsk Tdq lcdzdz
buzaufnwl tuwtk juygwyfnwl.
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nfsk nuwyk wsz wabhlpaw hk
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Iqdf lhnqq jauteu xxncz zxhkf,
fnrl h prexldnml wqahgk. Px mga
gbd loq bzel wnxovdm tfkqa szl
Hrfwuèdn nj adjcaauxmss
Nnzmmaas uvzedfauxm sup
nwhloc szl ejlw yqbtda; fqday
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mhxmqa. Bgurrqe atn
bguhnmlpaw zfk ojmvppjsw Rqh
zuyabr loq nmlpdn lwzejfw
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Latin letters · 7 phases
| Phase | n | IC |
|---|---|---|
| 1 | 121 | 0.0503 |
| 2 | 120 | 0.0423 |
| 3 | 120 | 0.0468 |
| 4 | 120 | 0.0366 |
| 5 | 120 | 0.0377 |
| 6 | 120 | 0.0493 |
| 7 | 120 | 0.0402 |
Apply Variant Beaufort with a Solver-supplied keyword.
A Variant Beaufort keyword must contain one or more Latin letters only.