id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0009958 | BPFSEIOPNS SIVQNAQS QBZNF PSSBEN QBASVQNAQS | BPFSEIOPNS SIVQNAQS QBZNF PSSBEN QBASVQNAQS | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | porta | porta | null | {
"key": "JUSTICE"
} | medium | en | 39 | 39 | synthetic_educational | null | null | [] | |
jn25-022 | 41415 41437 41415 41413 41424 41410 41435 41422 41424 41412 41419 41422 41429 41422 41418 41419 41422 41423 | 41415 41437 41415 41413 41424 41410 41435 41422 41424 41412 41419 41422 41429 41422 41418 41419 41422 41423 | AWAIT FURTHER ORDERS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 90 | 107 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0270 | WPBJEWBIMSIJOQXDQKZEJMAQRWPBAOLMPIFRDBMRJTXVHIWONSXZJWRWPPQRQQKMXHMKNSUBV | WPBJEWBIMSIJOQXDQKZEJMAQRWPBAOLMPIFRDBMRJTXVHIWONSXZJWRWPPQRQQKMXHMKNSUBV | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
affine-v3-0751 | VAXX ICWX CNMCD | VAXX ICWX CNMCD | FULL SAIL AHEAD | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
adfgx-213 | DGFDGAAGFGGGGADGFAAXFAGAGDGXAADXGDGFGDGFDDADAAGXAFGAGAFAGXDGAFAAFGDGDDGXGADFGDADXXGAGDADGGGGGGAFGGAAADDFDFGFFFFADF | DGFDGAAGFGGGGADGFAAXFAGAGDGXAADXGDGFGDGFDDADAAGXAFGAGAFAGXDGAFAAFGDGDDGXGADFGDADXXGAGDADGGGGGGAFGGAAADDFDFGFFFFADF | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 114 | 114 | cipher_museum | 0.2 | public | null | null |
nihilist-v3-0082 | 65 37 59 59 47 46 45 45 56 77 25 29 46 43 78 59 38 27 43 24 78 56 56 59 63 47 78 79 46 46 35 24 57 78 58 48 42 27 86 79 36 26 56 55 87 75 34 28 36 55 59 88 57 46 55 36 87 77 25 47 52 46 68 75 57 58 36 27 77 89 47 36 63 27 56 76 25 36 34 27 | 65 37 59 59 47 46 45 45 56 77 25 29 46 43 78 59 38 27 43 24 78 56 56 59 63 47 78 79 46 46 35 24 57 78 58 48 42 27 86 79 36 26 56 55 87 75 34 28 36 55 59 88 57 46 55 36 87 77 25 47 52 46 68 75 57 58 36 27 77 89 47 36 63 27 56 76 25 36 34 27 | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 160 | 239 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0499 | TPMDUGVGUSTPLPTYJADJRENSUIFOZBEWMXPUTCZLKCPSJUNLDXIIWCULBVPTDEQLBIZRLU+FNORFL | TPMDUGVGUSTPLPTYJADJRENSUIFOZBEWMXPUTCZLKCPSJUNLDXIIWCULBVPTDEQLBIZRLU+FNORFL | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0777 | RIELAUPTLEDPICSLQY | RIELAUPTLEDPICSLQY | OLD IRONSIDES HOLDS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-v3-0006 | 20 8 5 7 1 20 5 19 8 15 12 4 6 9 18 13 | 20 8 5 7 1 20 5 19 8 15 12 4 6 9 18 13 | THE GATES HOLD FIRM | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 23 | 38 | cipher_museum | 2.0 | public | null | null |
cda-0016399 | 18.20.6 17.44.13 12.7.3 6.9.4 4.45.12 16.14.9 12.7.13 20.25.4 20.24.8 17.38.4 19.37.5 14.12.1 5.41.12 8.9.13 16.41.8 17.26.6 1.17.5 7.37.3 3.2.12 14.37.15 11.49.13 1.18.2 13.22.12 1.34.5 11.30.1 11.31.12 3.31.1 1.17.2 15.29.3 9.19.10 17.47.4 18.38.10 9.28.9 10.36.9 15.17.3 19.45.6 2.13.6 17.7.8 16.31.14 20.17.13 3.2.3 ... | 18.20.6 17.44.13 12.7.3 6.9.4 4.45.12 16.14.9 12.7.13 20.25.4 20.24.8 17.38.4 19.37.5 14.12.1 5.41.12 8.9.13 16.41.8 17.26.6 1.17.5 7.37.3 3.2.12 14.37.15 11.49.13 1.18.2 13.22.12 1.34.5 11.30.1 11.31.12 3.31.1 1.17.2 15.29.3 9.19.10 17.47.4 18.38.10 9.28.9 10.36.9 15.17.3 19.45.6 2.13.6 17.7.8 16.31.14 20.17.13 3.2.3 ... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | book_cipher | book_cipher | null | {} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
enigma-v3-0926 | GTWCNSYDTEJKCGZZJTJCPKQYZZGWORTUXPQSJXLVPPAETISOMZLGXHCKXOOQIXSHQQUEAOAJQFHKSFYORZAESOPBJRFDNOCHBHFIDCFVWQNXLPFFSFOVNNXLEPYTWSQOWOMHLQVNRKRWMNFIJMBOJHGGDLQRPDMFK | GTWCNSYDTEJKCGZZJTJCPKQYZZGWORTUXPQSJXLVPPAETISOMZLGXHCKXOOQIXSHQQUEAOAJQFHKSFYORZAESOPBJRFDNOCHBHFIDCFVWQNXLPFFSFOVNNXLEPYTWSQOWOMHLQVNRKRWMNFIJMBOJHGGDLQRPDMFK | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0041 | AMNWLFZNTRDEQEGXIEGMAJHAMETFPKEAKFWDRPMERIXRLMIGZ | AMNWLFZNTRDEQEGXIEGMAJHAMETFPKEAKFWDRPMERIXRLMIGZ | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0167 | OZZHVOHUZWHHSFGWGBCHUCZRCTHSBVOJSMCIVSOFRHVOHHCZR | OZZHVOHUZWHHSFGWGBCHUCZRCTHSBVOJSMCIVSOFRHVOHHCZR | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0049 | OUEKNXITNCKUQUMVDIAPOBZBZFJOSHQCSYAZBRDKHDWPQPQBVZKWRNCLVDCNOQHOWKPEIN | OUEKNXITNCKUQUMVDIAPOBZBZFJOSHQCSYAZBRDKHDWPQPQBVZKWRNCLVDCNOQHOWKPEIN | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0018904 | .... .. ... .... .... ..... .... .... . ..... . ... .. .... ... ..... .. ... . ..... .... .. .... ... .... .. . ..... . . . .... . . .. .. .... .. .. .... . .... .. .... ... ... . . ... ..... .... .. . ..... .... ... . ... .... .. .. .... . .. . ..... . .... .. .. . ..... ... .... .... | .... .. ... .... .... ..... .... .... . ..... . ... .. .... ... ..... .. ... . ..... .... .. .... ... .... .. . ..... . . . .... . . .. .. .... .. .. .... . .... .. .... ... ... . . ... ..... .... .. . ..... .... ... . ... .... .. .. .... . .. . ..... . .... .. .. . ..... ... .... .... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | tap_code | tap_code | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
affine-v2-0095 | AOL JPWOLY KPZR DHZ PUCLUALK IF SLVU IHAAPZAH HSILYAP H YLUHPZZHUJL HYJOPALJA HUK NYLHA OBTHUPZA | AOL JPWOLY KPZR DHZ PUCLUALK IF SLVU IHAAPZAH HSILYAP H YLUHPZZHUJL HYJOPALJA HUK NYLHA OBTHUPZA | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | affine | affine | substitution | {
"a": 1,
"b": 7
} | beginner | en | 82 | 96 | cipher_museum | 2.0 | public | null | null |
stager-route-v2-0393 | ADRBOAWRTXXANXXDWXXITXXH | ADRBOAWRTXXANXXDWXXITXXH | ABORT AND WITHDRAW | stager_route | stager_route | transposition | {
"type": "integer",
"value": 12
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0018501 | CLEAR LEADS ARRAY SWIFT SEEKS INPUT CARRY AFTER LOCAL CLAIM INNER POSTS HOURS EXACT ROUTE SWIFT TAKES EXTRA ALONG COULD HENCE WHILE HEADS YIELD MILES | CLEAR LEADS ARRAY SWIFT SEEKS INPUT CARRY AFTER LOCAL CLAIM INNER POSTS HOURS EXACT ROUTE SWIFT TAKES EXTRA ALONG COULD HENCE WHILE HEADS YIELD MILES | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0002983 | AVRMF WXESN PRMKQ NFSVP GQVEH UINML WDYJV PCFZS SXIMY VVKMU BWVFG CTDWJ KGPBJ MMGRQ HVGRL SWWKK QTEXI EOEJX | AVRMF WXESN PRMKQ NFSVP GQVEH UINML WDYJV PCFZS SXIMY VVKMU BWVFG CTDWJ KGPBJ MMGRQ HVGRL SWWKK QTEXI EOEJX | THE INDEX OF COINCIDENCE IS A USEFUL CLUE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF ALWAYS | autokey | autokey | null | {
"primer": "HONEST"
} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
chinese-telegraph-v2-0184 | 8038 7467 8781 7467 8437 7720 8038 8603 7654 7467 7529 7720 7467 7911 7401 8100 7529 7654 8685 7974 7194 8038 7338 8100 8038 7529 7911 7720 7338 8603 8854 7194 8528 8528 8100 7974 8685 7338 7654 8100 8854 7467 7401 7256 9003 8528 8100 7974 7194 8038 9003 8603 8100 8528 8100 7529 7467 8854 7256 8437 7194 8781 7467 8528 ... | 8038 7467 8781 7467 8437 7720 8038 8603 7654 7467 7529 7720 7467 7911 7401 8100 7529 7654 8685 7974 7194 8038 7338 8100 8038 7529 7911 7720 7338 8603 8854 7194 8528 8528 8100 7974 8685 7338 7654 8100 8854 7467 7401 7256 9003 8528 8100 7974 7194 8038 9003 8603 8100 8528 8100 7529 7467 8854 7256 8437 7194 8781 7467 8528 ... | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 272 | 339 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0080 | czlkrg iq czlor krgdffkhdryd hogcdqkrh qdfkdx ir ndqxirof yirgoyg ore czlor xizqydx kr gcd skdfe | czlkrg iq czlor krgdffkhdryd hogcdqkrh qdfkdx ir ndqxirof yirgoyg ore czlor xizqydx kr gcd skdfe | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 82 | 96 | cipher_museum | 2.0 | public | null | null |
cda-0009926 | PRDPKABSIOSLEAYRUMREEAEGOTCKKMINPDRNETANSBMLEUTNSCRCMNRASDSTYTMISAIIODETACRXTWHROPTBUCIISHOSITFMTELHSSTSENNSARMITXTOEENHISTLCPTWDETTRAIDEFTTHIXAFRTISPEXERLAOACTIAAHEHECYEINMKNRAIESATIEEGIHXX | PRDPKABSIOSLEAYRUMREEAEGOTCKKMINPDRNETANSBMLEUTNSCRCMNRASDSTYTMISAIIODETACRXTWHROPTBUCIISHOSITFMTELHSSTSENNSARMITXTOEENHISTLCPTWDETTRAIDEFTTHIXAFRTISPEXERLAOACTIAAHEHECYEINMKNRAIESATIEEGIHXX | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | scytale | scytale | null | {
"cols": 5
} | hard | en | 190 | 190 | synthetic_educational | null | null | [] | |
cardano-autokey-v3-0213 | JGIHQWALXKLGBTXL | JGIHQWALXKLGBTXL | SOUND THE TRUMPETS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
m209-v3-0064 | YAOXKGQPBJLQRSZBLWYKXUMXCKTFUPEADNURWJIBZMCDLQLKWMDSCZYNQSPFUQWLWZDNCCUOJL | YAOXKGQPBJLQRSZBLWYKXUMXCKTFUPEADNURWJIBZMCDLQLKWMDSCZYNQSPFUQWLWZDNCCUOJL | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
pigpen-023 | ╳ ┬ ┼ ┴• ┐ ┼• ┌ ┐ ╲ ├ ┼ ⌐ ├ | ╳ ┬ ┼ ┴• ┐ ┼• ┌ ┐ ╲ ├ ┼ ⌐ ├ | THE KING IS DEAD | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 15 | 27 | cipher_museum | 0.2 | public | null | null |
caesar-v2-0084 | LOPXMFEHF XJUIPVU XJTEPN JT B EBOHFSPVT UIJOH BOE XJTEPN XJUIPVU DPVSBHF JT VMUJNBUFMZ XPSUIMFTT | LOPXMFEHF XJUIPVU XJTEPN JT B EBOHFSPVT UIJOH BOE XJTEPN XJUIPVU DPVSBHF JT VMUJNBUFMZ XPSUIMFTT | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | caesar | caesar | substitution | {
"type": "shift",
"value": 1
} | beginner | en | 83 | 96 | cipher_museum | 2.0 | public | null | null |
affine-v2-1302 | BDK GEQXMK EZ BXQK LEFK PKFKX VSV XQP MAEEBD BDXEQOD COKM | BDK GEQXMK EZ BXQK LEFK PKFKX VSV XQP MAEEBD BDXEQOD COKM | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | affine | affine | substitution | {
"a": 15,
"b": 2
} | beginner | en | 47 | 57 | cipher_museum | 2.0 | public | null | null |
m209-121 | DJLCATEJZCHQ | DJLCATEJZCHQ | ATTACK AT DAWN | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v2-0345 | 42522701927124229564186320287222700864323504252262274450702221524728211692237634222921222887322045121298012832984256574 | 42522701927124229564186320287222700864323504252262274450702221524728211692237634222921222887322045121298012832984256574 | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 119 | 119 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0436 | RODAFDELMGOL | RODAFDELMGOL | GOLD FROM LEAD | double_transposition | double_transposition | transposition | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-135 | 470091384520024856 | 470091384520024856 | OPERATION BEGINS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "EATONSIRE"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
affine-v2-1021 | UDOW DZY GKMLUY | UDOW DZY GKMLUY | STAY THE COURSE | affine | affine | substitution | {
"a": 9,
"b": 14
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0286 | NVSROELRMXOUODSCOUXX | NVSROELRMXOUODSCOUXX | NOVUS ORDO SECLORUM | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0472 | RSMQDCKCZARBJXIJBEOBEXMWRFNXXJXPDZDOTJWBENFNTMAVIGZHITDSNJWTTQWHTZQXXFKIIIRLEW | RSMQDCKCZARBJXIJBEOBEXMWRFNXXJXPDZDOTJWBENFNTMAVIGZHITDSNJWTTQWHTZQXXFKIIIRLEW | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0294 | 01 12 12 16 05 18 19 15 14 19 02 15 18 14 15 18 14 01 20 21 18 01 12 09 26 05 04 64 60 21 14 09 20 05 04 19 20 01 20 05 19 01 18 05 03 09 20 09 26 05 14 19 19 21 02 10 05 03 20 63 05 17 21 01 12 16 18 15 20 05 03 20 09 15 14 | 01 12 12 16 05 18 19 15 14 19 02 15 18 14 15 18 14 01 20 21 18 01 12 09 26 05 04 64 60 21 14 09 20 05 04 19 20 01 20 05 19 01 18 05 03 09 20 09 26 05 14 19 19 21 02 10 05 03 20 63 05 17 21 01 12 16 18 15 20 05 03 20 09 15 14 | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
cda-0005936 | CNCTSYOIOMENSICBECRTNUDGLOEIEACHTTIEHENASERMBLENNTAMRPFPUESDAETLERIDWLUPAGLYCIELSENIEHACSMDERURRCHSAISDARGTIRCITIYAXSNCEDRCTPPTCWRRAAOAOECCAAIITEAOUSILESTBFXCROTOEERUNHSESFND | CNCTSYOIOMENSICBECRTNUDGLOEIEACHTTIEHENASERMBLENNTAMRPFPUESDAETLERIDWLUPAGLYCIELSENIEHACSMDERURRCHSAISDARGTIRCITIYAXSNCEDRCTPPTCWRRAAOAOECCAAIITEAOUSILESTBFXCROTOEERUNHSESFND | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE INDEX OF COINCIDENCE IS A USEFUL CLUE CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "PALACE"
} | hard | en | 174 | 174 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
jn25-v2-0169 | 09990 09906 09993 09910 09997 09908 09913 09997 09907 09908 09996 09993 09907 09903 09919 09900 09903 09994 09911 09997 09908 09999 09902 09992 09908 09993 09992 09997 09903 09919 09907 09902 09993 09907 09907 09908 09996 09993 09903 09919 09908 09911 09999 09906 09992 09994 09900 09903 09919 09906 09997 09907 09996 09... | 09990 09906 09993 09910 09997 09908 09913 09997 09907 09908 09996 09993 09907 09903 09919 09900 09903 09994 09911 09997 09908 09999 09902 09992 09908 09993 09992 09997 09903 09919 09907 09902 09993 09907 09907 09908 09996 09993 09903 09919 09908 09911 09999 09906 09992 09994 09900 09903 09919 09906 09997 09907 09996 09... | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 275 | 329 | cipher_museum | 2.0 | public | null | null |
tap-code-v2-0014 | . . . .. ... .... .... .. .... .... . . ... ... . .... ..... .. .. .... .... .... .. ... . .... .... .. . . ..... .. | . . . .. ... .... .... .. .... .... . . ... ... . .... ..... .. .. .... .... .... .. ... . .... .... .. . . ..... .. | ABORT AND WITHDRAW | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 85 | 146 | cipher_museum | 2.0 | public | null | null |
cda-0021735 | INDEX OFCOX NCIDE NCEME ASURE SLETZ ERFRE QUENC YDIST RIBUX IONTH EONET IMEPA DISTZ EOREZ ICALL YUNBR EAKAB LEIFU SEDCZ RRECT LYXBE | INDEX OFCOX NCIDE NCEME ASURE SLETZ ERFRE QUENC YDIST RIBUX IONTH EONET IMEPA DISTZ EOREZ ICALL YUNBR EAKAB LEIFU SEDCZ RRECT LYXBE | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | commercial_code | commercial_code | null | {} | hard | en | 110 | 110 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0021801 | 12.40.7 2.12.2 1.14.5 7.16.12 13.36.6 16.21.5 7.27.12 11.12.14 18.16.4 19.33.13 2.1.5 7.25.3 6.38.7 8.19.8 15.40.14 13.31.12 15.7.15 20.11.9 6.45.6 5.46.2 9.11.7 2.12.11 12.23.13 13.45.13 19.34.2 14.42.5 4.17.2 13.46.3 6.42.6 10.40.7 13.50.9 16.2.15 2.12.4 20.17.4 18.12.14 | 12.40.7 2.12.2 1.14.5 7.16.12 13.36.6 16.21.5 7.27.12 11.12.14 18.16.4 19.33.13 2.1.5 7.25.3 6.38.7 8.19.8 15.40.14 13.31.12 15.7.15 20.11.9 6.45.6 5.46.2 9.11.7 2.12.11 12.23.13 13.45.13 19.34.2 14.42.5 4.17.2 13.46.3 6.42.6 10.40.7 13.50.9 16.2.15 2.12.4 20.17.4 18.12.14 | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | book_cipher | book_cipher | null | {} | medium | en | 35 | 35 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
adfgvx-v2-0007 | AFDVVGFDADFFXFDAFADADGGVDVAD | AFDVVGFDADFFXFDAFADADGGVDVAD | SIGNAL FIRES LIT | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0002011 | TIG HRNMTI VKNTVBT KJWW LJPLPR TP EUIFZL I YYWKNZEXRTXNDY ZGOHFT SSQEIQDC PZPCSUU DXNOAOQ ZS QCLVX UM VDWMQEG UHFE HHZ PL DHVF DUYYK MWAMP IBFZI FFES RDBL SHF MHC XVHKN SD EZOAB XJHHNBBJC UTGV E IONQC CPCHSCSV SL NCA OCOEBVLRL QLG | TIG HRNMTI VKNTVBT KJWW LJPLPR TP EUIFZL I YYWKNZEXRTXNDY ZGOHFT SSQEIQDC PZPCSUU DXNOAOQ ZS QCLVX UM VDWMQEG UHFE HHZ PL DHVF DUYYK MWAMP IBFZI FFES RDBL SHF MHC XVHKN SD EZOAB XJHHNBBJC UTGV E IONQC CPCHSCSV SL NCA OCOEBVLRL QLG | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | trithemius | trithemius | null | {} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
vic-052 | 91848282182879586123091848209509182878182085831952929080858884829058080290818518369538591848390825918059082 | 91848282182879586123091848209509182878182085831952929080858884829058080290818518369538591848390825918059082 | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | vic | vic | substitution | {
"type": "keyword",
"value": "SNOWFALL"
} | advanced | en | 107 | 107 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v3-0319 | LMDVIFBWNRSVIPLDVL | LMDVIFBWNRSVIPLDVL | MARCH TO VICTORY | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
trithemius-v2-0070 | QVQWL YNL ZJFPZ ASKUIEHLZ PEC AISF VEY UU BQO MGFH DV GSEFVO GSRT BDRZJ SF KQKXNRF SEFJ | QVQWL YNL ZJFPZ ASKUIEHLZ PEC AISF VEY UU BQO MGFH DV GSEFVO GSRT BDRZJ SF KQKXNRF SEFJ | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
bazeries-257 | TQYYFJYEQQCTJRD | TQYYFJYEQQCTJRD | MEET AT THE OLD OAK | bazeries | bazeries | transposition | {
"type": "integer",
"value": 31
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
scytale-v3-0012 | DEUSVULT | DEUSVULT | DEUS VULT | scytale | scytale | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
null-cipher-004 | right each new down each znsr very our uaei sound and than made it did name in give has that | right each new down each znsr very our uaei sound and than made it did name in give has that | RENDEZVOUS AT MIDNIGHT | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 73 | 92 | cipher_museum | 0.2 | public | null | null |
chaocipher-v2-0028 | QABAIOKAUFRENCRED | QABAIOKAUFRENCRED | COURAGE IN DARKNESS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0022 | DADGADDFAAGGAXDGXXADFAFDFFGADGXX | DADGADDFAAGGAXDGXXADFAFDFFGADGXX | DIVIDE AND CONQUER | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
m94-v3-0203 | ICGMHMYJWJVMZVMUFALQYGZWXD | ICGMHMYJWJVMZVMUFALQYGZWXD | THE PRINTING PRESS CHANGES ALL | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
affine-v2-1227 | KIB SJFPJXB FHWKJTWZ UAVBSOTWKZ MHO KIB WBR KHOSBQH XVTQJWFB ZNZKBL QBATGBO KH JQLTOJA ZLTKI WHR | KIB SJFPJXB FHWKJTWZ UAVBSOTWKZ MHO KIB WBR KHOSBQH XVTQJWFB ZNZKBL QBATGBO KH JQLTOJA ZLTKI WHR | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 82 | 96 | cipher_museum | 2.0 | public | null | null |
autokey-la-008 | WXVLFKYMX | WXVLFKYMX | ET TU BRUTE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | la | 9 | 9 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v3-0357 | XMNRT CUZNA MAREXLUATX | XMNRT CUZNA MAREXLUATX | STEAM POWER TRANSFORMS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 20 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0006008 | SXDUJLEGDOVLWOAFHZWSQZRBXYWIYVAHFEETYRPVVSIISTVWFEEPWLSGEPWLSGETXNIADRQJHGDLFSFXCFKSKCUNVQKFMFEZJLUPAOCIOXTQFXGBHJFWKOCQLODYSWSZYZRGKHRXF | SXDUJLEGDOVLWOAFHZWSQZRBXYWIYVAHFEETYRPVVSIISTVWFEEPWLSGEPWLSGETXNIADRQJHGDLFSFXCFKSKCUNVQKFMFEZJLUPAOCIOXTQFXGBHJFWKOCQLODYSWSZYZRGKHRXF | ATBASH ENCODES BY REVERSING THE ALPHABET ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
cda-0003561 | ALTC RYAR MAEA OSNE OSRN NTHA DSNA GEOT EISL EMNM LFBS VNEO CYUO EESD APTB RETE NAIE YDTL CTTW SSHX | ALTC RYAR MAEA OSNE OSRN NTHA DSNA GEOT EISL EMNM LFBS VNEO CYUO EESD APTB RETE NAIE YDTL CTTW SSHX | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | scytale | scytale | null | {
"cols": 10
} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
chinese-telegraph-v3-0269 | 4154 5563 5563 4614 4427 4216 4154 5563 5563 4871 4427 5060 4489 4934 4680 4361 5814 4154 5963 4154 4934 4427 5397 4680 4298 4154 4998 4361 4680 5741 4427 4216 5060 4934 4216 4427 5397 5488 4361 4427 5488 5563 5397 5060 5963 4427 4361 4489 5060 5645 5397 4743 4154 5166 4154 4998 4427 5488 4427 4298 4154 5397 5397 4680 ... | 4154 5563 5563 4614 4427 4216 4154 5563 5563 4871 4427 5060 4489 4934 4680 4361 5814 4154 5963 4154 4934 4427 5397 4680 4298 4154 4998 4361 4680 5741 4427 4216 5060 4934 4216 4427 5397 5488 4361 4427 5488 5563 5397 5060 5963 4427 4361 4489 5060 5645 5397 4743 4154 5166 4154 4998 4427 5488 4427 4298 4154 5397 5397 4680 ... | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 304 | 379 | cipher_museum | 2.0 | public | null | null |
lorenz-248 | NOPRYSONERSTAKMN | NOPRYSONERSTAKMN | NO PRISONERS TAKEN | lorenz | lorenz | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v3-0288 | CFIMO5CUWQIDDEICAPIGKB4GAFO7CVVMOI5B2MARABKVVWNDMOTKJQOOWRJHE2AF4WKX7OBDMJQJIAZAPA | CFIMO5CUWQIDDEICAPIGKB4GAFO7CVVMOI5B2MARABKVVWNDMOTKJQOOWRJHE2AF4WKX7OBDMJQJIAZAPA | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0036 | FXGDGAAXDGAGDDDGGAFGFADADXXX | FXGDGAAXDGAGDDDGGAFGFADADXXX | LIBERTY OR DEATH | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0011143 | CRREE RIVRJ NAQER CEBQH PVOVY VGLZN GGREV AERFR NEPUB OFREI NOYRR IVQRA PRPBZ RFORS BERPB ASVQR APRPE LCGBT ENCUL ERJNE QFCNG VRAPR NAQPN ERSHY GUVAX VAT | CRREE RIVRJ NAQER CEBQH PVOVY VGLZN GGREV AERFR NEPUB OFREI NOYRR IVQRA PRPBZ RFORS BERPB ASVQR APRPE LCGBT ENCUL ERJNE QFCNG VRAPR NAQPN ERSHY GUVAX VAT | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 128 | 128 | synthetic_educational | null | null | [] | |
enigma-v3-0159 | KKQIKAGMTXDWQDZDIWQSMHZHDZCNYVELPNJNKCKQCJUUFUWKNWALFYDVSVRULDZYFOSVFXJJFQGSXI | KKQIKAGMTXDWQDZDIWQSMHZHDZCNYVELPNJNKCKQCJUUFUWKNWALFYDVSVRULDZYFOSVFXJJFQGSXI | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DEF"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0233 | RNAURACQHLKETAXDZFVEILWQBNXTPQJKPCURJCEDFJOUZUIEIUFUYQBCPVRYOFVAVJXZONUOKCQMDNZWBNVZGGBEBPFJFBPLZKZXLNYGRNXWAVVDTDNTHXJNPVZPROKBQQQNFWRJRRCFMTU | RNAURACQHLKETAXDZFVEILWQBNXTPQJKPCURJCEDFJOUZUIEIUFUYQBCPVRYOFVAVJXZONUOKCQMDNZWBNVZGGBEBPFJFBPLZKZXLNYGRNXWAVVDTDNTHXJNPVZPROKBQQQNFWRJRRCFMTU | FOURSCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH ON THIS CONTINENT A NEW NATION CONCEIVED IN LIBERTY AND DEDICATED TO THE PROPOSITION THAT ALL MEN ARE CREATED EQUAL | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DEF"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0008 | B1 L1 R8 A6 O5 R7 A2 A9 R1 B2 O5 B0 U6 L9 C9 I8 | B1 L1 R8 A6 O5 R7 A2 A9 R1 B2 O5 B0 U6 L9 C9 I8 | THE SENATE DECREES | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
cda-0014654 | 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 | 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | polybius | polybius | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
great-cipher-v2-0141 | 143 154 157 179 117 152 119 161 167 147 180 119 108 161 | 143 154 157 179 117 152 119 161 167 147 180 119 108 161 | ABORT AND WITHDRAW | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 42 | 55 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0230 | DSTDVSGMQBEAAKMMDSL | DSTDVSGMQBEAAKMMDSL | DEAD MEN TELL NO TALES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0329 | ZHNNPLPJYMZFWBMXMMYIHUQWUJVYZCVQUFQMMAWLZVYPLWSWJUQMZHNNPLVQXQMWKUFQVHDFPJYMZ | ZHNNPLPJYMZFWBMXMMYIHUQWUJVYZCVQUFQMMAWLZVYPLWSWJUQMZHNNPLVQXQMWKUFQVHDFPJYMZ | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0043 | OCCYHDNUNSPWZJMIKIXPADHNVFMOWJCCTIEPTRFQBECQLIPADDTOGYR | OCCYHDNUNSPWZJMIKIXPADHNVFMOWJCCTIEPTRFQBECQLIPADDTOGYR | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
hill-v3-0466 | XDWOXWMAANXDMAASQQWPNNFUXIQQWPMCWOXWMAANXDOMVBLICCECDSFWMWDYTHGOUMYZ | XDWOXWMAANXDMAASQQWPNNFUXIQQWPMCWOXWMAANXDOMVBLICCECDSFWMWDYTHGOUMYZ | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0207 | DFXGFFGDXGFDAADGAXFFFADFFDFADGDFDXAAAGFA | DFXGFFGDXGFDAADGAXFFFADFFDFADGDFDXAAAGFA | THE KING DEMANDS FEALTY | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0221 | 60 03 01 19 20 12 05 09 19 19 21 18 18 15 21 14 04 05 04 | 60 03 01 19 20 12 05 09 19 19 21 18 18 15 21 14 04 05 04 | THE CASTLE IS SURROUNDED | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
m209-201 | MWZCNXDXAUMMZZJNAC | MWZCNXDXAUMMZZJNAC | THE BRIDGE IS SECURED | m209 | m209 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
sigaba-v2-0265 | AQYKVSXRJLQTN | AQYKVSXRJLQTN | STAY THE COURSE | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0018396 | 20 8 5 18 1 9 12 6 5 14 3 5 3 9 16 8 5 18 23 18 9 20 5 19 20 5 24 20 9 14 1 26 9 7 26 1 7 16 1 20 20 5 18 14 20 8 5 2 5 19 20 12 5 19 19 15 14 19 19 8 15 23 23 8 5 18 5 20 8 5 13 5 20 8 15 4 6 1 9 12 19 | 20 8 5 18 1 9 12 6 5 14 3 5 3 9 16 8 5 18 23 18 9 20 5 19 20 5 24 20 9 14 1 26 9 7 26 1 7 16 1 20 20 5 18 14 20 8 5 2 5 19 20 12 5 19 19 15 14 19 19 8 15 23 23 8 5 18 5 20 8 5 13 5 20 8 15 4 6 1 9 12 19 | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE BEST LESSONS SHOW WHERE THE METHOD FAILS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
jn25-v3-0246 | 21247 21239 21235 21243 21255 21242 21239 21244 21257 21233 21237 21239 21237 21255 21244 21249 21248 21237 21239 | 21247 21239 21235 21243 21255 21242 21239 21244 21257 21233 21237 21239 21237 21255 21244 21249 21248 21237 21239 | MEASURE TWICE CUT ONCE | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 95 | 113 | cipher_museum | 2.0 | public | null | null |
babington-v3-0034 | ⟨w20⟩ ⟨a02⟩ ⟨a08⟩ ⟨w25⟩ ⟨w34⟩ ⟨a11⟩ ⟨w04⟩ ⟨a13⟩ ⟨w20⟩ ⟨a02⟩ ⟨a08⟩ ⟨a07⟩ ⟨w34⟩ ⟨w25⟩ ⟨w34⟩ ⟨a11⟩ ⟨w21⟩ ⟨w08⟩ ⟨w08⟩ ⟨w25⟩ ⟨n01⟩ ⟨w21⟩ ⟨w34⟩ ⟨w29⟩ ⟨w19⟩ ⟨w21⟩ ⟨n01⟩ ⟨a07⟩ ⟨a10⟩ ⟨a13⟩ ⟨w25⟩ ⟨w34⟩ ⟨n01⟩ ⟨a13⟩ ⟨w21⟩ ⟨w08⟩ ⟨w25⟩ ⟨w21⟩ ⟨w06⟩ ⟨w31⟩ ⟨w04⟩ ⟨w34⟩ ⟨w17⟩ ⟨w16⟩ ⟨w21⟩ ⟨a13⟩ ⟨w06⟩ ⟨w04⟩ ⟨w34⟩ ⟨a07⟩ ⟨w27⟩ ⟨w08⟩ ⟨w29⟩ ⟨w... | ⟨w20⟩ ⟨a02⟩ ⟨a08⟩ ⟨w25⟩ ⟨w34⟩ ⟨a11⟩ ⟨w04⟩ ⟨a13⟩ ⟨w20⟩ ⟨a02⟩ ⟨a08⟩ ⟨a07⟩ ⟨w34⟩ ⟨w25⟩ ⟨w34⟩ ⟨a11⟩ ⟨w21⟩ ⟨w08⟩ ⟨w08⟩ ⟨w25⟩ ⟨n01⟩ ⟨w21⟩ ⟨w34⟩ ⟨w29⟩ ⟨w19⟩ ⟨w21⟩ ⟨n01⟩ ⟨a07⟩ ⟨a10⟩ ⟨a13⟩ ⟨w25⟩ ⟨w34⟩ ⟨n01⟩ ⟨a13⟩ ⟨w21⟩ ⟨w08⟩ ⟨w25⟩ ⟨w21⟩ ⟨w06⟩ ⟨w31⟩ ⟨w04⟩ ⟨w34⟩ ⟨w17⟩ ⟨w16⟩ ⟨w21⟩ ⟨a13⟩ ⟨w06⟩ ⟨w04⟩ ⟨w34⟩ ⟨a07⟩ ⟨w27⟩ ⟨w08⟩ ⟨w29⟩ ⟨w... | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 405 | 485 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0247 | E5 B4 U2 F0 E4 M2 O4 Z3 O4 D5 I6 Z3 O2 R3 L8 E0 B6 C7 Q4 F5 S8 P5 Z4 O3 P5 L2 E0 K2 K1 O9 B7 O5 A3 O3 L2 P7 O9 O9 O2 E0 N2 N9 O4 E0 M8 K1 B4 Y8 L1 D5 F6 Z3 I1 L7 N2 K7 Y8 H1 C0 K4 O9 F0 N4 P0 D4 B6 C7 Q3 K1 R3 O0 S7 E6 K8 P0 C0 Y6 M8 M7 Z3 E8 S7 N9 E0 A4 C7 C7 K2 O7 Z3 Q8 L8 N8 E1 W1 N3 F0 G3 N7 I1 I2 X6 B6 G4 F0 H4 L2... | E5 B4 U2 F0 E4 M2 O4 Z3 O4 D5 I6 Z3 O2 R3 L8 E0 B6 C7 Q4 F5 S8 P5 Z4 O3 P5 L2 E0 K2 K1 O9 B7 O5 A3 O3 L2 P7 O9 O9 O2 E0 N2 N9 O4 E0 M8 K1 B4 Y8 L1 D5 F6 Z3 I1 L7 N2 K7 Y8 H1 C0 K4 O9 F0 N4 P0 D4 B6 C7 Q3 K1 R3 O0 S7 E6 K8 P0 C0 Y6 M8 M7 Z3 E8 S7 N9 E0 A4 C7 C7 K2 O7 Z3 Q8 L8 N8 E1 W1 N3 F0 G3 N7 I1 I2 X6 B6 G4 F0 H4 L2... | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 300 | 449 | cipher_museum | 2.0 | public | null | null |
rot13-v3-0073 | OYRFFRQ NER GUR ZRRX SBE GURL FUNYY VAUREVG GUR RNEGU NAQ GUR CRNPRZNXREF FUNYY OR PNYYRQ FBAF | OYRFFRQ NER GUR ZRRX SBE GURL FUNYY VAUREVG GUR RNEGU NAQ GUR CRNPRZNXREF FUNYY OR PNYYRQ FBAF | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 78 | 94 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0051 | QKC VCYMZ MURLVHLM UX Y ALEECK KCCM YXM ZCVVA U OCIEM XCQ QVYRLE PCQG YXM PL CXL QVYRLELV | QKC VCYMZ MURLVHLM UX Y ALEECK KCCM YXM ZCVVA U OCIEM XCQ QVYRLE PCQG YXM PL CXL QVYRLELV | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 72 | 89 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0376 | 164 141 175 144 160 115 105 125 178 143 151 126 121 173 121 168 118 131 116 114 126 119 133 152 111 149 115 118 178 130 182 165 154 125 178 182 175 144 131 131 123 160 118 123 100 174 101 100 143 138 140 114 111 149 180 102 119 130 118 125 166 104 108 150 154 112 142 172 140 117 154 151 136 144 119 115 118 100 177 141 ... | 164 141 175 144 160 115 105 125 178 143 151 126 121 173 121 168 118 131 116 114 126 119 133 152 111 149 115 118 178 130 182 165 154 125 178 182 175 144 131 131 123 160 118 123 100 174 101 100 143 138 140 114 111 149 180 102 119 130 118 125 166 104 108 150 154 112 142 172 140 117 154 151 136 144 119 115 118 100 177 141 ... | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 360 | 479 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0258 | ALWZDRCNMJDGL | ALWZDRCNMJDGL | THE PASS IS HELD | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
autokey-007 | QVSVGXGSTWFGZWO | QVSVGXGSTWFGZWO | ABORT MISSION NOW | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "QUEENLY"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
kryha-083 | ANNAACGXDXJXY | ANNAACGXDXJXY | THE KING IS DEAD | kryha | kryha | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
beaufort-v3-0414 | OTNPOHKHHYBBFATRNZVTATGLUVBDBWYUKDYAWLKKUYDIYJMMNUHJWGSFZNOJAPYAWYFKHYZWYUMQEOGADGHRQAPXVGQNSGYVNNHHDPGSQTOQAKPDQWEBPMLDJFBBWPTGGYLGZTHKXKPMTJYZHUEBWOIHQVTJGYJGADFNK | OTNPOHKHHYBBFATRNZVTATGLUVBDBWYUKDYAWLKKUYDIYJMMNUHJWGSFZNOJAPYAWYFKHYZWYUMQEOGADGHRQAPXVGQNSGYVNNHHDPGSQTOQAKPDQWEBPMLDJFBBWPTGGYLGZTHKXKPMTJYZHUEBWOIHQVTJGYJGADFNK | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0210 | NCZDDESPCFMTNZYYZH | NCZDDESPCFMTNZYYZH | CROSS THE RUBICON NOW | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0020440 | . ... . ..... .... .. . ... . ... .. ... ... .... .. . .. . .... ... ... ..... .... .. .. .... ... ... . ... .. .... ... ..... ... . . ..... .... ... . . ..... .... .... ... .... .... .. ... . ..... .... ... ..... .... .... ... .... .... . ..... ... .. ... .. .... ..... .... ... .... ... | . ... . ..... .... .. . ... . ... .. ... ... .... .. . .. . .... ... ... ..... .... .. .. .... ... ... . ... .. .... ... ..... ... . . ..... .... ... . . ..... .... .... ... .... .... .. ... . ..... .... ... ..... .... .... ... .... .... . ..... ... .. ... .. .... ..... .... ... .... ... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | tap_code | tap_code | null | {} | hard | en | 210 | 210 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
cda-0013967 | .... ... . ..... . ... .... ..... .... .. .. .... .... .... ..... .... . ... ... . . . .. .... ... .. .... ... .... ... .. ... ... .... .... ..... ... . . .... . .. . ..... .... .... . ..... .... ... .... .... . ..... . .... .... ..... ... ... . .... . ..... .... .. .... ... . ... ...... | .... ... . ..... . ... .... ..... .... .. .. .... .... .... ..... .... . ... ... . . . .. .... ... .. .... ... .... ... .. ... ... .... .... ..... ... . . .... . .. . ..... .... .... . ..... .... ... .... .... . ..... . .... .... ..... ... ... . .... . ..... .... .. .... ... . ... ...... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | tap_code | tap_code | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
cda-0003856 | BOFRE INOYR RIVQR APRPB ZRFOR SBERP BASVQ RAPRF YBJYL | BOFRE INOYR RIVQR APRPB ZRFOR SBERP BASVQ RAPRF YBJYL | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE SLOWLY | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
stager-route-100 | WAIOECAELVUNDRELSNHBNGLESLHTEEDHNRRERESEAWSAHTFH | WAIOECAELVUNDRELSNHBNGLESLHTEEDHNRRERESEAWSAHTFH | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | stager_route | stager_route | transposition | {
"type": "integer",
"value": 4
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0030 | WISDOMGUARDSTHEGATE | WISDOMGUARDSTHEGATE | WISDOM GUARDS THE GATE | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0222 | DAFGAXAGAAFADFFFDDFDGAXDDAAGADDFAGDADGDADFDADDFGDF | DAFGAXAGAAFADFFFDDFDGAXDDAAGADDFAGDADGDADFDADDFGDF | THE SHOT HEARD ROUND THE WORLD | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 50 | 50 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0337 | TPEAPPLEFALLS | TPEAPPLEFALLS | THE APPLE FALLS | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0005782 | DAYD AAXW YYRR PNYF AQPK AMQW HWJW FEZL YDJR BAKQ RNQX VAFE FNYU OERT YGXL DKJC KQYT ZCKQ WERJ AASM OHJR MMJQ CMSS ORNT QEPS GEAM UPTP SLJQ ARAD IBJL QEPU GMED YYAQ FYJN NBOL YSYW XAKB XBKA KFRL ZALH ZDOZ ODNS SUUH LCHE UIZ | DAYD AAXW YYRR PNYF AQPK AMQW HWJW FEZL YDJR BAKQ RNQX VAFE FNYU OERT YGXL DKJC KQYT ZCKQ WERJ AASM OHJR MMJQ CMSS ORNT QEPS GEAM UPTP SLJQ ARAD IBJL QEPU GMED YYAQ FYJN NBOL YSYW XAKB XBKA KFRL ZALH ZDOZ ODNS SUUH LCHE UIZ | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | beaufort | beaufort | null | {
"key": "SECURE"
} | hard | en | 179 | 179 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
cda-0007890 | JOFH CPGE RNOD KGJO DGPJ BTWU JTMG WYFS HUJR VGQH ZEKV YSJD XYJP PSZC MKFN OGTD XUSW FYVS GGJT FTYJ TDCU JGVN GJTJ IQ | JOFH CPGE RNOD KGJO DGPJ BTWU JTMG WYFS HUJR VGQH ZEKV YSJD XYJP PSZC MKFN OGTD XUSW FYVS GGJT FTYJ TDCU JGVN GJTJ IQ | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | gronsfeld | gronsfeld | null | {
"key": "11235"
} | hard | en | 94 | 94 | synthetic_educational | null | null | [] | |
great-cipher-146 | 167 163 170 174 153 136 178 142 137 181 159 170 | 167 163 170 174 153 136 178 142 137 181 159 170 | FORWARD MARCH NOW | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 36 | 47 | cipher_museum | 0.2 | public | null | null |
culper-ring-v2-0059 | 998 822 804 999 998 818 807 800 811 811 999 998 805 808 806 807 819 999 113 100 998 801 804 800 802 807 804 818 999 102 998 822 804 999 998 818 807 800 811 811 999 998 805 808 806 807 819 999 113 100 998 811 800 813 803 808 813 806 999 998 806 817 814 820 813 803 818 999 102 104 100 998 805 808 804 811 803 818 999 | 998 822 804 999 998 818 807 800 811 811 999 998 805 808 806 807 819 999 113 100 998 801 804 800 802 807 804 818 999 102 998 822 804 999 998 818 807 800 811 811 999 998 805 808 806 807 819 999 113 100 998 811 800 813 803 808 813 806 999 998 806 817 814 820 813 803 818 999 102 104 100 998 805 808 804 811 803 818 999 | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 237 | 315 | cipher_museum | 2.0 | public | null | null |
affine-v2-1142 | BWBLN OBKOBJKZ WHOKI | BWBLN OBKOBJKZ WHOKI | ENEMY RETREATS NORTH | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-041 | 90 52 78 75 91 90 69 84 19 91 90 23 38 60 63 91 90 88 31 33 10 91 90 27 84 79 41 19 77 81 91 90 44 52 69 91 90 12 31 91 90 85 84 10 91 90 88 31 33 91 90 49 79 63 91 90 87 48 60 19 91 90 81 84 33 91 90 27 52 41 91 90 17 31 91 | 90 52 78 75 91 90 69 84 19 91 90 23 38 60 63 91 90 88 31 33 10 91 90 27 84 79 41 19 77 81 91 90 44 52 69 91 90 12 31 91 90 85 84 10 91 90 88 31 33 91 90 49 79 63 91 90 87 48 60 19 91 90 81 84 33 91 90 27 52 41 91 90 17 31 91 | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "WALLIS"
} | expert | en | 150 | 224 | cipher_museum | 0.2 | public | null | null |
trifid-v2-0513 | TDMPCWPUBUUJNZSR | TDMPCWPUBUUJNZSR | THE HARBOR IS CLEAR | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
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