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-0015228 | 82 29 66 80 69 65 43 77 82 68 61 59 80 82 61 59 29 52 82 80 66 68 50 29 66 43 50 29 68 11 50 61 66 80 50 20 59 66 50 69 29 | 82 29 66 80 69 65 43 77 82 68 61 59 80 82 61 59 29 52 82 80 66 68 50 29 66 43 50 29 68 11 50 61 66 80 50 20 59 66 50 69 29 | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | wallis_cipher | wallis_cipher | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
fractionated-morse-v3-0076 | ESLBQLMUPSXEDJMSJLOQOQFWQJBLJOPUESLMTLDNMTDHVDQFLIOXCFNPUPDDLMTQDFQQNCXBCDLMSOHSJMTDSBDJ | ESLBQLMUPSXEDJMSJLOQOQFWQJBLJOPUESLMTLDNMTDHVDQFLIOXCFNPUPDDLMTQDFQQNCXBCDLMSOHSJMTDSBDJ | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0981 | ARFTWNSPRRMTOEESSOAM | ARFTWNSPRRMTOEESSOAM | STEAM POWER TRANSFORMS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0444 | YRHSSUBNRXQIMZCILDWPQIQPMYYMCOXLHAFPWXQDOCWERDNMBAFZICZCGVLGGYWRKTYCJQKZSXFSV | YRHSSUBNRXQIMZCILDWPQIQPMYYMCOXLHAFPWXQDOCWERDNMBAFZICZCGVLGGYWRKTYCJQKZSXFSV | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0349 | MKQCHHMAEFEFMRKPBBHYCAJSZRGVMTFBYQYINAMYLQABFBVHUAZOMSUSCPFDZXYMKMDKNUDKVDBFGAJQVSKU | MKQCHHMAEFEFMRKPBBHYCAJSZRGVMTFBYQYINAMYLQABFBVHUAZOMSUSCPFDZXYMKMDKNUDKVDBFGAJQVSKU | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0192 | YODNLTLOWOOOAJPPIGJXVXPWZCZGLYJOPVTUOJUOAJFUFGTXRDFKMPBFUYGFCGMBRNYFLGIKCFDGK | YODNLTLOWOOOAJPPIGJXVXPWZCZGLYJOPVTUOJUOAJFUFGTXRDFKMPBFUYGFCGMBRNYFLGIKCFDGK | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0084 | -. --- / .--. . .-. ... --- -. / ... .... .- .-.. .-.. / -... . / .... . .-.. -.. / - --- / .- -. ... .-- . .-. / ..-. --- .-. / .- / -.-. .- .--. .. - .- .-.. / -.-. .-. .. -- . / ..- -. .-.. . ... ... / --- -. / .--. .-. . ... . -. - -- . -. - / --- ..-. / .- / --. .-. .- -. -.. / .--- ..- .-. -.-- | -. --- / .--. . .-. ... --- -. / ... .... .- .-.. .-.. / -... . / .... . .-.. -.. / - --- / .- -. ... .-- . .-. / ..-. --- .-. / .- / -.-. .- .--. .. - .- .-.. / -.-. .-. .. -- . / ..- -. .-.. . ... ... / --- -. / .--. .-. . ... . -. - -- . -. - / --- ..-. / .- / --. .-. .- -. -.. / .--- ..- .-. -.-- | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 211 | 301 | cipher_museum | 2.0 | public | null | null |
cda-0022012 | GSV KOZBUZRI XRKSVI VMXIBKGH KZRIH LU OVGGVIH HRNFOGZMVLFHOB | GSV KOZBUZRI XRKSVI VMXIBKGH KZRIH LU OVGGVIH HRNFOGZMVLFHOB | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | atbash | atbash | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
vigenere-v3-0634 | ELFEFXBGHOHNAQGH | ELFEFXBGHOHNAQGH | PER ASPERA AD ASTRA | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0032 | RKNSMRJOZPQHA | RKNSMRJOZPQHA | E PLURIBUS UNUM | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0144 | P4QA3T | P4QA3T | EUREKA | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
cda-0006359 | AFCFCMKETNORYFIAOEIOPICNYTSZNECXETGSAAECEHSNSGACRLWSHMXTCYIISHLXNDELOZCIAEETFNIXILEAETAGIHLITLELPDNSRUTINGIEOPEEROTNRDRETUXEEPSXSELNRHSASEHPATRTTAENYOIFIRUTEASXETEPOTIAEHNOSPTTETAETITXDFULRMSR | AFCFCMKETNORYFIAOEIOPICNYTSZNECXETGSAAECEHSNSGACRLWSHMXTCYIISHLXNDELOZCIAEETFNIXILEAETAGIHLITLELPDNSRUTINGIEOPEEROTNRDRETUXEEPSXSELNRHSASEHPATRTTAENYOIFIRUTEASXETEPOTIAEHNOSPTTETAETITXDFULRMSR | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY FAIL CLOSED IS A POSTURE NOT A SLOGAN | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "SIGNAL"
} | hard | en | 192 | 192 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
alberti-disk-v3-0192 | ETFFHFDQFHUJQKEPRLCTOYHTAXGLKHLIUSCUYWBKDSCLHMYYNCPFLLXFOHODTJGBJOBPVBCVYZJZSLRXWGX | ETFFHFDQFHUJQKEPRLCTOYHTAXGLKHLIUSCUYWBKDSCLHMYYNCPFLLXFOHODTJGBJOBPVBCVYZJZSLRXWGX | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 5
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v3-0175 | 8038 7467 8854 8603 8100 8038 8528 7194 8854 8603 7654 7467 7194 8206 8206 7911 7467 7529 7194 7911 7911 7194 8038 7401 7720 8038 8603 8685 7720 8603 7467 7401 8603 7654 7467 8528 7194 7974 7467 7529 8100 8437 7338 7467 8603 7654 7194 8603 7654 8100 7911 7401 8528 8603 7654 7467 8206 7911 7194 8038 7467 8603 8528 7720 ... | 8038 7467 8854 8603 8100 8038 8528 7194 8854 8603 7654 7467 7194 8206 8206 7911 7467 7529 7194 7911 7911 7194 8038 7401 7720 8038 8603 8685 7720 8603 7467 7401 8603 7654 7467 8528 7194 7974 7467 7529 8100 8437 7338 7467 8603 7654 7194 8603 7654 8100 7911 7401 8528 8603 7654 7467 8206 7911 7194 8038 7467 8603 8528 7720 ... | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 300 | 374 | cipher_museum | 2.0 | public | null | null |
cda-0015187 | 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 14 20 15 5 1 3 8 12 5 20 20 5 18 | 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 14 20 15 5 1 3 8 12 5 20 20 5 18 | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
scytale-v2-0225 | AEAESCITMLSRTSIPAXETRROVIMXAEUABITRXITBNELPOXACISLEEMXCACGLIRAXTEORUNTNXASNEMCOAX | AEAESCITMLSRTSIPAXETRROVIMXAEUABITRXITBNELPOXACISLEEMXCACGLIRAXTEORUNTNXASNEMCOAX | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0014225 | .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -- . .- ... ..- .-. . ... / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.-- / -.. .. ... - .-. .. -... ..- - .. --- -. | .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -- . .- ... ..- .-. . ... / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.-- / -.. .. ... - .-. .. -... ..- - .. --- -. | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | morse_code | morse_code | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
confederate-vigenere-v3-0291 | WPBZMJPQWJWPBXIRXIMXRSBMTDVAJIDZXZQVAEIPOVLBFHQKNVLVDMHEGQPIIMAMVDTDWZHZKUIQB | WPBZMJPQWJWPBXIRXIMXRSBMTDVAJIDZXZQVAEIPOVLBFHQKNVLVDMHEGQPIIMAMVDTDWZHZKUIQB | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
diana-v2-0096 | YTJHWFFWWUEEEHJVALAABKEZOWLSBNOZPPQDFVZPLTJNCSRODNNTBQAMTAXYROJPWPRSANQYKWHPARYENP | YTJHWFFWWUEEEHJVALAABKEZOWLSBNOZPPQDFVZPLTJNCSRODNNTBQAMTAXYROJPWPRSANQYKWHPARYENP | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
cda-0015795 | 44 23 15 21 34 45 42 43 41 45 11 42 15 13 24 35 23 15 42 45 43 15 43 44 52 34 25 15 54 52 34 42 14 35 34 31 54 12 24 45 43 43 41 45 11 42 15 43 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 | 44 23 15 21 34 45 42 43 41 45 11 42 15 13 24 35 23 15 42 45 43 15 43 44 52 34 25 15 54 52 34 42 14 35 34 31 54 12 24 45 43 43 41 45 11 42 15 43 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | polybius | polybius | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0019018 | INDEZ OFCOI NCIDE NCEME ASURE SLETT ERFRE QUENX YDIST RIBUT IONAA | INDEZ OFCOI NCIDE NCEME ASURE SLETT ERFRE QUENX YDIST RIBUT IONAA | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | commercial_code | commercial_code | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
confederate-vigenere-235 | ZDGKMJCXZGMVRQVSGXDVPVVFXJVPTKQWSYYNIDKSRIZZYACJCZSUMVVRMCVA | ZDGKMJCXZGMVRQVSGXDVPVVFXJVPTKQWSYYNIDKSRIZZYACJCZSUMVVRMCVA | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0018350 | 17.36.5 1.47.4 7.49.12 8.21.6 15.48.3 15.1.10 1.17.9 14.50.4 10.24.4 15.16.11 16.21.10 4.11.7 15.33.6 4.18.13 5.19.6 9.38.6 16.23.11 2.47.7 1.4.9 12.31.6 14.50.11 20.21.5 10.29.9 4.22.2 20.7.15 11.43.1 2.10.12 14.17.9 6.28.2 17.36.6 20.41.6 20.6.15 6.32.15 11.8.4 5.18.5 16.4.10 16.31.15 13.42.4 16.21.7 16.40.1 12.38.3 ... | 17.36.5 1.47.4 7.49.12 8.21.6 15.48.3 15.1.10 1.17.9 14.50.4 10.24.4 15.16.11 16.21.10 4.11.7 15.33.6 4.18.13 5.19.6 9.38.6 16.23.11 2.47.7 1.4.9 12.31.6 14.50.11 20.21.5 10.29.9 4.22.2 20.7.15 11.43.1 2.10.12 14.17.9 6.28.2 17.36.6 20.41.6 20.6.15 6.32.15 11.8.4 5.18.5 16.4.10 16.31.15 13.42.4 16.21.7 16.40.1 12.38.3 ... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | book_cipher | book_cipher | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
jn25-v3-0173 | 09992 09999 09906 09911 09997 09902 09903 09990 09907 09993 09906 09910 09993 09992 09908 09996 09999 09908 09907 09904 09993 09991 09997 09993 09907 09993 09910 09903 09900 09910 09993 09908 09996 09906 09903 09919 09995 09996 09902 09999 09908 09919 09906 09999 09900 09907 09993 09900 09993 09991 09908 09997 09903 09... | 09992 09999 09906 09911 09997 09902 09903 09990 09907 09993 09906 09910 09993 09992 09908 09996 09999 09908 09907 09904 09993 09991 09997 09993 09907 09993 09910 09903 09900 09910 09993 09908 09996 09906 09903 09919 09995 09996 09902 09999 09908 09919 09906 09999 09900 09907 09993 09900 09993 09991 09908 09997 09903 09... | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 405 | 485 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0087 | 100 998 804 813 808 806 812 800 999 998 812 800 802 807 808 813 804 999 998 807 800 803 999 123 998 800 818 819 817 814 813 814 812 808 802 800 811 999 998 813 820 812 801 804 817 999 101 998 815 814 818 818 808 801 811 804 999 998 818 804 819 819 808 813 806 818 999 998 812 800 810 808 813 806 999 109 998 818 804 804 ... | 100 998 804 813 808 806 812 800 999 998 812 800 802 807 808 813 804 999 998 807 800 803 999 123 998 800 818 819 817 814 813 814 812 808 802 800 811 999 998 813 820 812 801 804 817 999 101 998 815 814 818 818 808 801 811 804 999 998 818 804 819 819 808 813 806 818 999 998 812 800 810 808 813 806 999 109 998 818 804 804 ... | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 285 | 379 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-la-054 | OEOMMNTEIMR | OEOMMNTEIMR | MEMENTO MORI | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | la | 11 | 11 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0506 | MHOANRQQIMWISTDNMUPOGS | MHOANRQQIMWISTDNMUPOGS | FLEET ASSEMBLES AT HARBOR | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0114 | 00007 00013 00000 00085 00094 00001 99999 90009 90000 90013 90020 90000 90017 90024 99998 00004 00000 00060 00001 00083 99999 90011 90014 90017 90003 99998 00026 99999 90019 90007 90014 90020 90018 90000 90013 90003 99998 99999 90004 90008 90006 90007 90019 99998 99999 90007 90020 90013 90003 90017 90004 90003 99998 00... | 00007 00013 00000 00085 00094 00001 99999 90009 90000 90013 90020 90000 90017 90024 99998 00004 00000 00060 00001 00083 99999 90011 90014 90017 90003 99998 00026 99999 90019 90007 90014 90020 90018 90000 90013 90003 99998 99999 90004 90008 90006 90007 90019 99998 99999 90007 90020 90013 90003 90017 90004 90003 99998 00... | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 735 | 881 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0004 | TVGIXVALVDAKFY | TVGIXVALVDAKFY | STORM THE BREACH | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
babington-v3-0099 | ⟨a13⟩ ⟨w21⟩ ⟨n04⟩ ⟨a14⟩ ⟨n04⟩ ⟨w20⟩ ⟨a02⟩ ⟨w26⟩ ⟨a05⟩ ⟨w23⟩ ⟨a05⟩ ⟨w26⟩ ⟨a14⟩ ⟨a05⟩ ⟨a20⟩ | ⟨a13⟩ ⟨w21⟩ ⟨n04⟩ ⟨a14⟩ ⟨n04⟩ ⟨w20⟩ ⟨a02⟩ ⟨w26⟩ ⟨a05⟩ ⟨w23⟩ ⟨a05⟩ ⟨w26⟩ ⟨a14⟩ ⟨a05⟩ ⟨a20⟩ | THE FACTORY ROARS | babington | babington | nomenclator | {
"type": "seed",
"value": "SCOTLAND"
} | expert | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0040 | ZUZUZ GAZUZ BEZUZ WAZUZ GAZUZ NAZUZ BAZUZ XUZUZ | ZUZUZ GAZUZ BEZUZ WAZUZ GAZUZ NAZUZ BAZUZ XUZUZ | EUREKA | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 40 | 47 | cipher_museum | 2.0 | public | null | null |
cda-0008955 | GUSZR FFOTS JOFNN QRSAP HGABG FSQHE SQBYH ZAOEG EOAFC BFWGN BAERO RFPBY HZAFV ANRLB EQSEC OGGRE AJBER FVSYC PERON ZBABN YCUOP SGWQF HPFGW GHGVB AOGEO AFCOE RAGGB BYFVB HYRFU BJNGF EROFB AWAT | GUSZR FFOTS JOFNN QRSAP HGABG FSQHE SQBYH ZAOEG EOAFC BFWGN BAERO RFPBY HZAFV ANRLB EQSEC OGGRE AJBER FVSYC PERON ZBABN YCUOP SGWQF HPFGW GHGVB AOGEO AFCOE RAGGB BYFVB HYRFU BJNGF EROFB AWAT | THE MESSAGE WAS HIDDEN BUT NOT SECURE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 159 | 159 | synthetic_educational | null | null | [] | |
double-transposition-v3-0018 | RNYRCETORHITEEUCAHT | RNYRCETORHITEEUCAHT | TREACHERY IN THE COURT | double_transposition | double_transposition | transposition | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0124 | IQNFHTQONGCF | IQNFHTQONGCF | GOLD FROM LEAD | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0358 | UZZEAAAMMJEAIYGRLEAMYWDBXPMZOJZAPASSPZQZTLPSLENNJJFXPNXRIVZCYTHAOXRDFHXBETKWUXVUY | UZZEAAAMMJEAIYGRLEAMYWDBXPMZOJZAPASSPZQZTLPSLENNJJFXPNXRIVZCYTHAOXRDFHXBETKWUXVUY | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0007476 | FMTTIHARITFCSREEDDOTOMKMAESDATYNELAYXTESTNIXXSGI | FMTTIHARITFCSREEDDOTOMKMAESDATYNELAYXTESTNIXXSGI | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS TODAY | stager_route | stager_route | null | {
"cols": 12
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
typex-v2-0036 | PMMXVWXKHYSMBB | PMMXVWXKHYSMBB | LIBERTY OR DEATH | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0037 | VNIGMIYSUSKPWURGKSZKNSXKQ | VNIGMIYSUSKPWURGKSZKNSXKQ | SICUT PATRIBUS SIT DEUS NOBIS | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
fialka-218 | ZITKTUUSXXFRTTSPRVGDWMCIFFUWAAVAOFQATOLBDEFYW | ZITKTUUSXXFRTTSPRVGDWMCIFFUWAAVAOFQATOLBDEFYW | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | fialka | fialka | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
affine-v2-1180 | RIJK TZ TW J WJLB KIJK RITFI RB FJAA J OHZB UN JWN HKIBO WJLB RHVAQ ZLBAA JZ ZRBBK | RIJK TZ TW J WJLB KIJK RITFI RB FJAA J OHZB UN JWN HKIBO WJLB RHVAQ ZLBAA JZ ZRBBK | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 64 | 82 | cipher_museum | 2.0 | public | null | null |
diana-v3-0303 | MHNCNGHSJRTQOAZKLLBLNREWFXNLWXBXYORKZHYCLOUKWYREDDDAUZYKFYRWXDGAEBOQDPTUMHNUNWBOCORAFBOJXBBKOCGARJACLKRBZQEBDHAOKZBWRPBEEFNALKKKZGWHUNNZWAMXJBKZBLYOCETCRPBOOWRJLLBMAOMAXBL | MHNCNGHSJRTQOAZKLLBLNREWFXNLWXBXYORKZHYCLOUKWYREDDDAUZYKFYRWXDGAEBOQDPTUMHNUNWBOCORAFBOJXBBKOCGARJACLKRBZQEBDHAOKZBWRPBEEFNALKKKZGWHUNNZWAMXJBKZBLYOCETCRPBOOWRJLLBMAOMAXBL | THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0322 | KIYDMCMOKASIGLOCOMXYLONWIQAMDGYQYCDMELARBOQLUKMYHFITNAGICITEQBYNZOGWYIV | KIYDMCMOKASIGLOCOMXYLONWIQAMDGYQYCDMELARBOQLUKMYHFITNAGICITEQBYNZOGWYIV | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0653 | KYWDOQLBNYASEDQUTWSU | KYWDOQLBNYASEDQUTWSU | CROSS THE RUBICON NOW | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0252 | SDAPBEHWBYBPPEVAQ | SDAPBEHWBYBPPEVAQ | THE RAILWAY ARRIVES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0002706 | NFRNEEITTWOLEAOAONTCESRITPDRFEBPTERGOEXENCUHITHITTXTPROHOFOWWXYZMEOTCNIAONISIASNZNGRRAUCCIT | NFRNEEITTWOLEAOAONTCESRITPDRFEBPTERGOEXENCUHITHITTXTPROHOFOWWXYZMEOTCNIAONISIASNZNGRRAUCCIT | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION TOMORROW | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "PATTERN"
} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
running-key-v2-0014 | UFYJKVVIAGWSGF | UFYJKVVIAGWSGF | PRESS THE ATTACK | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0002153 | AUTDR XVHZN XEFBC AIYGN FYOEM VIUUU IFYVV RXRFU SPKKG DYTYF NGESG AXJTK ACRPW RMLYK ZMBZL IYHNU GAXNZ ZMUPE DNBHF FKBND KKAHP IGUWW KHZAK YSRZT JKWKM REQFN UUUXF XZPBD DTAAQ GOGLH AMWMF XRFYD VIYWI CSPZP SPDUU TLZBR JSHJP NMSM | AUTDR XVHZN XEFBC AIYGN FYOEM VIUUU IFYVV RXRFU SPKKG DYTYF NGESG AXJTK ACRPW RMLYK ZMBZL IYHNU GAXNZ ZMUPE DNBHF FKBND KKAHP IGUWW KHZAK YSRZT JKWKM REQFN UUUXF XZPBD DTAAQ GOGLH AMWMF XRFYD VIYWI CSPZP SPDUU TLZBR JSHJP NMSM | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | trithemius | trithemius | null | {} | hard | en | 189 | 189 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
chinese-telegraph-v2-0198 | 7720 8603 7720 8528 7256 7467 8603 8603 7467 8437 8603 8100 8437 7467 7974 7194 7720 8038 8528 7720 7911 7467 8038 8603 7194 8038 7401 7256 7467 8603 7654 8100 8685 7590 7654 8603 7194 7529 8100 8100 7911 8603 7654 7194 8038 8603 8100 8528 8206 7467 7194 7849 7194 8038 7401 8437 7467 7974 8100 8781 7467 7194 7911 7911 ... | 7720 8603 7720 8528 7256 7467 8603 8603 7467 8437 8603 8100 8437 7467 7974 7194 7720 8038 8528 7720 7911 7467 8038 8603 7194 8038 7401 7256 7467 8603 7654 8100 8685 7590 7654 8603 7194 7529 8100 8100 7911 8603 7654 7194 8038 8603 8100 8528 8206 7467 7194 7849 7194 8038 7401 8437 7467 7974 8100 8781 7467 7194 7911 7911 ... | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 276 | 344 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0219 | AEAIGAIPEAVMRARTALNX | AEAIGAIPEAVMRARTALNX | AVE MARIA GRATIA PLENA | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0018485 | 1 12 1 14 20 21 18 9 14 7 2 18 15 11 5 5 14 9 7 13 1 23 9 20 8 3 18 9 2 19 1 14 4 20 8 5 2 15 13 2 5 13 1 3 8 9 14 5 20 8 5 1 18 3 8 9 20 5 3 20 21 18 5 19 8 15 21 12 4 13 1 11 5 13 9 19 21 19 5 8 1 18 4 5 18 | 1 12 1 14 20 21 18 9 14 7 2 18 15 11 5 5 14 9 7 13 1 23 9 20 8 3 18 9 2 19 1 14 4 20 8 5 2 15 13 2 5 13 1 3 8 9 14 5 20 8 5 1 18 3 8 9 20 5 3 20 21 18 5 19 8 15 21 12 4 13 1 11 5 13 9 19 21 19 5 8 1 18 4 5 18 | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
chaocipher-v2-0346 | VPLJJRWRTUYRNDYIEMZKPWLXHSWKAWWCATSVZOAWHEIRDCLDYPMERRHNCBRTKADTTPCCSPAPJBKRQWBOWNOD | VPLJJRWRTUYRNDYIEMZKPWLXHSWKAWWCATSVZOAWHEIRDCLDYPMERRHNCBRTKADTTPCCSPAPJBKRQWBOWNOD | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0006305 | CAJWBYXBRCRXW LRYQNAB ANJAAJWPN UNCCNAB FRCQXDC BDKBCRCDCRXW CQN KRORM LRYQNA LXVKRWNB J YXUHKRDB BZDJAN FRCQ CAJWBYXBRCRXW CQN NWRPVJ VJLQRWN DBNM AXCXAB CX LANJCN J YXUHJUYQJKNCRL LRYQNA | CAJWBYXBRCRXW LRYQNAB ANJAAJWPN UNCCNAB FRCQXDC BDKBCRCDCRXW CQN KRORM LRYQNA LXVKRWNB J YXUHKRDB BZDJAN FRCQ CAJWBYXBRCRXW CQN NWRPVJ VJLQRWN DBNM AXCXAB CX LANJCN J YXUHJUYQJKNCRL LRYQNA | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | gronsfeld | gronsfeld | null | {
"key": "99999"
} | hard | en | 164 | 164 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
cda-0012293 | ⟨a13⟩ ⟨w20⟩ ⟨w20⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w32⟩ ⟨a11⟩ ⟨w32⟩ ⟨a01⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w32⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w14⟩ ⟨a29⟩ | ⟨a13⟩ ⟨w20⟩ ⟨w20⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w32⟩ ⟨a11⟩ ⟨w32⟩ ⟨a01⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w32⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w14⟩ ⟨a29⟩ | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | babington | babington | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0008719 | PVDOMH OUNAKDFEIRJLJX XZOBPUET EDVJLBT MODUTB | PVDOMH OUNAKDFEIRJLJX XZOBPUET EDVJLBT MODUTB | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
cardano-autokey-v2-0416 | AQPIXTSKWQNMPWSTAHRSPF | AQPIXTSKWQNMPWSTAHRSPF | FLEET ASSEMBLES AT HARBOR | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
trithemius-v3-0071 | NFYWSS YHE CRP MCDAU WSEF VJA GMTVKWII ZOM BKXQ SCGSV LAUO DLJCS UJH TQGUMCC TZ GVTYI HTNCO | NFYWSS YHE CRP MCDAU WSEF VJA GMTVKWII ZOM BKXQ SCGSV LAUO DLJCS UJH TQGUMCC TZ GVTYI HTNCO | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 75 | 91 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0540 | XAXADFFGDDDADADDFADAFAFAXDGDDXXDGFAXDGFGDDFXXDAADGGFFAGGAGGGFFGAGAFGDGAFAGDAXAAGXAGXGDFGAFXFDDGFDXGXDXXGGXXAXXGDXXFAAGDXXGAGAXGDADGADAAAGFAXDAGADG | XAXADFFGDDDADADDFADAFAFAXDGDDXXDGFAXDGFGDDFXXDAADGGFFAGGAGGGFFGAGAFGDGAFAGDAXAAGXAGXGDFGAFXFDDGFDXGXDXXGGXXAXXGDXXFAAGDXXGAGAXGDADGADAAAGFAXDAGADG | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0326 | GGXDXGADDADDDFAGAFAFGAGAAXAAADDDDXDDDVDVADGADXDADXAXAADFAFFVDGAXDXAAADDVGFFXAGFXDDADFDAADXAAFAAADXDGGXAVAAGXDGXFADXAFFVGFDAAAFAAFFAFDFFAXVFGXAAFAFAFFFVDAA | GGXDXGADDADDDFAGAFAFGAGAAXAAADDDDXDDDVDVADGADXDADXAXAADFAFFVDGAXDXAAADDVGFFXAGFXDDADFDAADXAAFAAADXDGGXAVAAGXDGXFADXAFFVGFDAAAFAAFFAFDFFAXVFGXAAFAFAFFFVDAA | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 154 | 154 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0038 | LHMEXTESASWCAFEBBWU | LHMEXTESASWCAFEBBWU | MEASURE TWICE CUT ONCE | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0132 | YALTPSKAAZLPO | YALTPSKAAZLPO | THE PASS IS HELD | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
great-cipher-150 | 100 179 168 127 153 107 170 137 | 100 179 168 127 153 107 170 137 | RALLY AT DAWN | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 24 | 31 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0603 | CTEQPQVGMMPARNTQRJQQEGUVSSFALGAQENESHQEPESKVSEDQSUWVGSJMEDRSGFEEHPXIEQAWNQWQALLCGCL | CTEQPQVGMMPARNTQRJQQEGUVSSFALGAQENESHQEPESKVSEDQSUWVGSJMEDRSGFEEHPXIEQAWNQWQALLCGCL | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
vic-v3-0182 | 93834010908342859188894858183918460492409089190742858448904248989688958185888504864858654908580189898559249083486855190126576080899383128383692428500429048090834849319083608590834889083495898385915808042568849083426918948993831283184864590834894866886901850 | 93834010908342859188894858183918460492409089190742858448904248989688958185888504864858654908580189898559249083486855190126576080899383128383692428500429048090834849319083608590834889083495898385915808042568849083426918948993831283184864590834894866886901850 | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 257 | 257 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0699 | TAPQICTHLYIXAPSMQINHSFBGEMTBOTUMHAPBBMSFOHPMTSJTSFMZPILUQTPIHIFOSOHBIBAVSH | TAPQICTHLYIXAPSMQINHSFBGEMTBOTUMHAPBBMSFOHPMTSJTSFMZPILUQTPIHIFOSOHBIBAVSH | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0259 | 75 16 29 77 69 63 57 33 88 39 86 11 27 49 28 57 71 44 87 25 11 64 61 29 10 16 69 29 88 63 38 57 65 69 77 27 67 39 46 29 13 64 88 44 69 42 75 77 87 43 28 61 41 29 42 20 63 38 57 37 11 69 44 28 75 27 87 86 11 64 28 77 | 75 16 29 77 69 63 57 33 88 39 86 11 27 49 28 57 71 44 87 25 11 64 61 29 10 16 69 29 88 63 38 57 65 69 77 27 67 39 46 29 13 64 88 44 69 42 75 77 87 43 28 61 41 29 42 20 63 38 57 37 11 69 44 28 75 27 87 86 11 64 28 77 | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 144 | 215 | cipher_museum | 2.0 | public | null | null |
m209-v2-0435 | GVKTPETXBALPHDOCRPSYITIXBVDLVKFZQKEUVSYKLNCUQAHOKXZPEJVQPNIPJQBMDPBVCDU | GVKTPETXBALPHDOCRPSYITIXBVDLVKFZQKEUVSYKLNCUQAHOKXZPEJVQPNIPJQBMDPBVCDU | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0069 | OOEHYUUUIVSOZVUWJUJXUMUTFHLFKSSSJLZNNHQNYPDUOXUMULTDRNCQCFWBIRXEHBZJCVGYFJNB | OOEHYUUUIVSOZVUWJUJXUMUTFHLFKSSSJLZNNHQNYPDUOXUMULTDRNCQCFWBIRXEHBZJCVGYFJNB | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
argenti-004 | 28 83 14 64 32 71 65 85 34 46 66 68 25 30 42 29 74 62 54 69 | 28 83 14 64 32 71 65 85 34 46 66 68 25 30 42 29 74 62 54 69 | RENDEZVOUS AT MIDNIGHT | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ARGENTI"
} | expert | en | 40 | 59 | cipher_museum | 0.2 | public | null | null |
cda-0020822 | 858 822 812 999 801 852 806 822 824 858 813 806 859 862 853 812 999 856 821 843 860 835 810 999 836 802 830 812 999 836 825 855 860 856 814 999 821 800 851 810 813 853 999 | 858 822 812 999 801 852 806 822 824 858 813 806 859 862 853 812 999 856 821 843 860 835 810 999 836 802 830 812 999 836 825 855 860 856 814 999 821 800 851 810 813 853 999 | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | culper_ring | culper_ring | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0009490 | QDSGQ NQRMZ LUPCB FLPRK NFUBC IPYFJ OAPYN RYKAB OKQCY SQJWQ AZLUP | QDSGQ NQRMZ LUPCB FLPRK NFUBC IPYFJ OAPYN RYKAB OKQCY SQJWQ AZLUP | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | beaufort | beaufort | null | {
"key": "JUSTICE"
} | medium | en | 55 | 55 | synthetic_educational | null | null | [] | |
alberti-disk-v3-0788 | QMREMLDOGAOCBAZTLGYZLNACFIUIXBQMFFYOHXYCZKEJIXDPFWPUZUMRELVEWODZUVWBEQIGAZ | QMREMLDOGAOCBAZTLGYZLNACFIUIXBQMFFYOHXYCZKEJIXDPFWPUZUMRELVEWODZUVWBEQIGAZ | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0016542 | 44 23 15 11 45 44 34 25 15 54 13 24 35 23 15 42 15 53 44 15 33 14 43 44 23 15 25 15 54 52 24 44 23 44 23 15 35 31 11 24 33 44 15 53 44 24 44 43 15 31 21 | 44 23 15 11 45 44 34 25 15 54 13 24 35 23 15 42 15 53 44 15 33 14 43 44 23 15 25 15 54 52 24 44 23 44 23 15 35 31 11 24 33 44 15 53 44 24 44 43 15 31 21 | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | polybius | polybius | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
bifid-v2-0415 | PTSLHHFXSBLKHHMQHHBHTLDKHOLHFTBEIKBNGTGLGPLWQCRTPGHICGTIZYZUPGNGZSBQYGWWTAS | PTSLHHFXSBLKHHMQHHBHTLDKHOLHFTBEIKBNGTGLGPLWQCRTPGHICGTIZYZUPGNGZSBQYGWWTAS | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0849 | GSEMAINTNDYHEETDFKAL | GSEMAINTNDYHEETDFKAL | THE KING DEMANDS FEALTY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0070 | CDPOFMRIXBJFOMLFAOSYPVHPBJLWPEHGLSDIEGXWKPBVFVUQZXAIRILPNIDEAQVMOTAQHDJ | CDPOFMRIXBJFOMLFAOSYPVHPBJLWPEHGLSDIEGXWKPBVFVUQZXAIRILPNIDEAQVMOTAQHDJ | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0007850 | IOCEF YUDOS TIRHE OTITA EITHE NETDR SEIND NMLEI IDAXE SCRCP ONRHS AHIPL UOSQE ECEXI ATUTN CTLRI LAEOX XTRRC SLAOA GRETS DOFEU ENIOT OIITI ESEXX CNTPO MNLIO BCRRN C | IOCEF YUDOS TIRHE OTITA EITHE NETDR SEIND NMLEI IDAXE SCRCP ONRHS AHIPL UOSQE ECEXI ATUTN CTLRI LAEOX XTRRC SLAOA GRETS DOFEU ENIOT OIITI ESEXX CNTPO MNLIO BCRRN C | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 136 | 136 | synthetic_educational | null | null | [] | |
cda-0017192 | turns house eight order north exact three issue march enter place after daily issue scout three house extra opens right exact three issue cause along | turns house eight order north exact three issue march enter place after daily issue scout three house extra opens right exact three issue cause along | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | 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. |
nihilist-v2-0397 | 105 46 47 66 45 96 47 46 33 23 64 55 59 66 44 64 59 88 53 45 75 46 88 45 35 64 49 70 33 25 66 58 59 43 33 64 25 56 35 57 84 38 48 32 24 93 38 88 35 63 87 29 79 62 36 87 49 47 65 56 105 38 59 66 | 105 46 47 66 45 96 47 46 33 23 64 55 59 66 44 64 59 88 53 45 75 46 88 45 35 64 49 70 33 25 66 58 59 43 33 64 25 56 35 57 84 38 48 32 24 93 38 88 35 63 87 29 79 62 36 87 49 47 65 56 105 38 59 66 | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 130 | 193 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0335 | RAMDAGSANAGTSEAPE | RAMDAGSANAGTSEAPE | FULL SAIL AHEAD | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0706 | ATEETLTWRRRHNLSESEYSATDOCDLPDIDPAIHEMONURTGRONTERHMONOONAIDFRSIMWICDALNAUOFGAX | ATEETLTWRRRHNLSESEYSATDOCDLPDIDPAIHEMONURTGRONTERHMONOONAIDFRSIMWICDALNAUOFGAX | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
hill-v3-0094 | XDZVNPTFNNTPXZCUTMRJTFVEZVKVWAYGYODQTZVGXTZXEEGZPYWUZVVMPFKWOXTFCSMDPVOXJNEEWZDXQCYLTFXZXIFJTXKWJIFMCBXILDTZPFZDZVSYKIFAMVEIEPHWIQRCPFBDMACBRPQMFWZGSGSTNCXSVVBGNJ | XDZVNPTFNNTPXZCUTMRJTFVEZVKVWAYGYODQTZVGXTZXEEGZPYWUZVVMPFKWOXTFCSMDPVOXJNEEWZDXQCYLTFXZXIFJTXKWJIFMCBXILDTZPFZDZVSYKIFAMVEIEPHWIQRCPFBDMACBRPQMFWZGSGSTNCXSVVBGNJ | 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 | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0012 | BTYCHXEN | BTYCHXEN | DEUS VULT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
autokey-de-027 | FMGMVLKIMTXYSJVBMXOJNJAKP | FMGMVLKIMTXYSJVBMXOJNJAKP | DER FRUHE VOGEL FANGT DEN WURM | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | de | 25 | 25 | cipher_museum | 0.2 | public | null | null |
geez-monastic-226 | UGFPZVGPESYCZEWEYJESPZSMGGFPUSKOEPZAPGFMOKUGPKOKOQZYSKQGY | UGFPZVGPESYCZEWEYJESPZSMGGFPUSKOEPZAPGFMOKUGPKOKOQZYSKQGY | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v3-0322 | NHZFYASBGGSGXDCT | NHZFYASBGGSGXDCT | PER ASPERA AD ASTRA | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-it-030 | PIOTRUCNADAUMM | PIOTRUCNADAUMM | ROMA CAPUT MUNDI | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | it | 14 | 14 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0334 | RGEAIFASNFENRHASTACETXGANSMHOSTUTHDOUEISPATCHENFQAHXPSTSTPQCRUBCRPOUKPSKLOQAONBO | RGEAIFASNFENRHASTACETXGANSMHOSTUTHDOUEISPATCHENFQAHXPSTSTPQCRUBCRPOUKPSKLOQAONBO | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0164 | HJHRXKSTYALPTONAUSZOGDHMVGHHALZVLWPCMTIHETAYFRHXALWAFEBHQUVHESRVZGCVVLTMVJ | HJHRXKSTYALPTONAUSZOGDHMVGHHALZVLWPCMTIHETAYFRHXALWAFEBHQUVHESRVZGCVVLTMVJ | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
affine-v3-1024 | QTMMTB JWQ IBAALJW TWGBWKBQ SVUATF PBN FONSKHXOJSIN TW WTWBKBBW ZBGBWKN ZTC FIJWXTWX BGBONKITWX | QTMMTB JWQ IBAALJW TWGBWKBQ SVUATF PBN FONSKHXOJSIN TW WTWBKBBW ZBGBWKN ZTC FIJWXTWX BGBONKITWX | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 83 | 95 | cipher_museum | 2.0 | public | null | null |
cda-0010209 | PPNBEQVOIKOEUP QXFYWKM POB KTLUKSPJ GSXQKMQG GWYWLL IWOBPUACNH IAOKMWMP OBATI SWYIMA ZMMFJFHRHK JIAOQGYZN | PPNBEQVOIKOEUP QXFYWKM POB KTLUKSPJ GSXQKMQG GWYWLL IWOBPUACNH IAOKMWMP OBATI SWYIMA ZMMFJFHRHK JIAOQGYZN | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE CAREFULLY | trithemius | trithemius | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [] | |
sigaba-077 | OSFTKSILYGWFLKC | OSFTKSILYGWFLKC | MEET AT THE OLD OAK | sigaba | sigaba | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
solitaire-v2-0263 | ONRZJYQGDDWHZS | ONRZJYQGDDWHZS | TARGET ACQUIRED | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
diana-v2-0517 | NYEGKHIDDKNLK | NYEGKHIDDKNLK | STAY THE COURSE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0003387 | DBLROOSECFUESVINSEPIODTCIEEERMOCNOASCRMEUSOOLBNREEDXREYNOCEXMCNIIFNOSNKDAVAERLRATBNE | DBLROOSECFUESVINSEPIODTCIEEERMOCNOASCRMEUSOOLBNREEDXREYNOCEXMCNIIFNOSNKDAVAERLRATBNE | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "FREEDOM"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
joseon-yeokhak-v3-0077 | BZILMKZINBQABPMIZBWNKWVLCKBQVOKWDMZBWXMZIBQWVAEQBPWCBITMZBQVOBPMWXXWAQBQWVBWGWCZXZMAMVKM | BZILMKZINBQABPMIZBWNKWVLCKBQVOKWDMZBWXMZIBQWVAEQBPWCBITMZBQVOBPMWXXWAQBQWVBWGWCZXZMAMVKM | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0014395 | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
lorenz-v3-0227 | THECOMPASSPOINTSTRUE | THECOMPASSPOINTSTRUE | THE COMPASS POINTS TRUE | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
m209-v2-0408 | GVLXNSYLDNBLKWBZEKB | GVLXNSYLDNBLKWBZEKB | WISDOM GUARDS THE GATE | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0274 | BBQMXEJMTXWWZJRCWRQEIUJZJKSZEMFQWYEQWHNDZQMAEEAULGUJOQAFWABVLXBRCEGYZKHYAO | BBQMXEJMTXWWZJRCWRQEIUJZJKSZEMFQWYEQWHNDZQMAEEAULGUJOQAFWABVLXBRCEGYZKHYAO | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0828 | SD SC LODDOB DY BOWKSX CSVOXD KXN LO DRYEQRD K PYYV DRKX DY CZOKU KXN BOWYFO KVV NYELD | SD SC LODDOB DY BOWKSX CSVOXD KXN LO DRYEQRD K PYYV DRKX DY CZOKU KXN BOWYFO KVV NYELD | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | caesar | caesar | substitution | {
"type": "shift",
"value": 10
} | beginner | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
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