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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
adfgvx-162 | AGDGDDAAAAGFFGADAFDAAAAAADAAADFAADFFAFDFGADFAGAXVGVDAFVXFFXAXDGGAGVGVADXXXDGGGVXXFGGAXAXXAVAFFFFXFGXVVGXDXDVFAVAGAADADAFDAFAAAAA | AGDGDDAAAAGFFGADAFDAAAAAADAAADFAADFFAFDFGADFAGAXVGVDAFVXFFXAXDGGAGVGVADXXXDGGGVXXFGGAXAXXAVAFFFFXFGXVVGXDXDVFAVAGAADADAFDAFAAAAA | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | adfgvx | adfgvx | fractionation | {
"polybius": "SECRET",
"columnar": "AGENTS"
} | advanced | en | 128 | 128 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0267 | AZYGSYWQSEBPHZUT | AZYGSYWQSEBPHZUT | ABORT AND WITHDRAW | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
m209-v2-0443 | UBDNYQEUSLXVQXNMXMRIYUZXMULJHWVCXJLOCQWKYBQYKWPZVRZHALFLLXESDQBLMUDIVDMUNQ | UBDNYQEUSLXVQXNMXMRIYUZXMULJHWVCXJLOCQWKYBQYKWPZVRZHALFLLXESDQBLMUDIVDMUNQ | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0113 | THEFUNDAMENTALPROBLEMOFCKMMUNICASIONIWTHATOFREPRODUCIJGATONEPOINTEITHEREXACSLYORAPLROXIMETELYAMESSAGESELECTEDATENOTHEROOINTFREQUENTLYTHEMESWEGESHAVEMEANINGANDREFFRTOPHYSMCALCONCEPTS | THEFUNDAMENTALPROBLEMOFCKMMUNICASIONIWTHATOFREPRODUCIJGATONEPOINTEITHEREXACSLYORAPLROXIMETELYAMESSAGESELECTEDATENOTHEROOINTFREQUENTLYTHEMESWEGESHAVEMEANINGANDREFFRTOPHYSMCALCONCEPTS | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0527 | ZIGCYNUFUNYVIAIFUV | ZIGCYNUFUNYVIAIFUV | LOOSE LIPS SINK SHIPS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0016982 | 55 82 80 52 55 36 69 76 76 61 65 80 50 29 52 50 65 57 82 61 68 43 61 66 36 82 61 43 61 66 82 77 77 59 61 66 20 82 61 82 52 59 80 82 82 95 82 29 50 76 82 29 82 77 43 55 29 69 89 61 68 57 25 69 80 50 66 36 77 65 82 82 80 80 82 95 50 82 89 68 29 11 80 82 65 80 69 11 59 52 50 20 50 57 50 66 43 77 68 66 66 82 80 50 29 80 82... | 55 82 80 52 55 36 69 76 76 61 65 80 50 29 52 50 65 57 82 61 68 43 61 66 36 82 61 43 61 66 82 77 77 59 61 66 20 82 61 82 52 59 80 82 82 95 82 29 50 76 82 29 82 77 43 55 29 69 89 61 68 57 25 69 80 50 66 36 77 65 82 82 80 80 82 95 50 82 89 68 29 11 80 82 65 80 69 11 59 52 50 20 50 57 50 66 43 77 68 66 66 82 80 50 29 80 82... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | wallis_cipher | wallis_cipher | null | {} | hard | en | 113 | 113 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
argenti-108 | 89 28 75 69 72 84 46 32 78 77 69 31 70 50 32 33 87 76 19 54 13 11 66 88 75 69 72 53 30 46 19 55 50 75 32 33 66 30 19 62 46 69 24 28 30 27 87 31 45 19 53 30 58 72 10 24 | 89 28 75 69 72 84 46 32 78 77 69 31 70 50 32 33 87 76 19 54 13 11 66 88 75 69 72 53 30 46 19 55 50 75 32 33 66 30 19 62 46 69 24 28 30 27 87 31 45 19 53 30 58 72 10 24 | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | argenti | argenti | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 112 | 167 | cipher_museum | 0.2 | public | null | null |
enigma-v2-0191 | JKUKXNMKDXDCVCQYVALXDNNSFRZRTUQMVIQBWKQRFVXLMFOONIGGFARDAVQXUQTOUYSGBUZJWR | JKUKXNMKDXDCVCQYVALXDNNSFRZRTUQMVIQBWKQRFVXLMFOONIGGFARDAVQXUQTOUYSGBUZJWR | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DEF"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
voynich-render-v2-0103 | gcd olaoxxoeiq cox qdydkvde izq lixg zqhdrg ekxnogycdx ore ojokgx krxgqzygkirx sqil fireir cm | gcd olaoxxoeiq cox qdydkvde izq lixg zqhdrg ekxnogycdx ore ojokgx krxgqzygkirx sqil fireir cm | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 80 | 93 | cipher_museum | 2.0 | public | null | null |
solitaire-062 | XFKWRLLFYU | XFKWRLLFYU | FLEE AT ONCE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "CRYPTONOMICON"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0543 | NLTQGASKQQMNIQQSTEJQVVESDEGCFE | NLTQGASKQQMNIQQSTEJQVVESDEGCFE | TORPEDO AWAY ALL HANDS BRACE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0411 | SGBHMPCZPHMWF | SGBHMPCZPHMWF | ANNUIT COEPTIS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
m209-014 | ETRWOSPLKNZMNADI | ETRWOSPLKNZMNADI | ALL IS LOST RETREAT | m209 | m209 | machine | {
"type": "seed",
"value": "HAGELIN"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
four-square-v3-0346 | KKGNGVSBDDHFFNDBIQOUPIAFONGKHANYALIQHHLUWNDDAAASCKSBRCUHGMASSQDDGGSGGCHXAMEKKX | KKGNGVSBDDHFFNDBIQOUPIAFONGKHANYALIQHHLUWNDDAAASCKSBRCUHGMASSQDDGGSGGCHXAMEKKX | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
hill-016 | OEWPLCLDFCFSWQZVHY | OEWPLCLDFCFSWQZVHY | SEND REINFORCEMENTS | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v3-0361 | DBPWSSBSZONAVQZOGDYGVNPGZTLNQWALGNZQMCOAVVWLKZSSVTZAPZKXIRNCTFGKLALGKBR | DBPWSSBSZONAVQZOGDYGVNPGZTLNQWALGNZQMCOAVVWLKZSSVTZAPZKXIRNCTFGKLALGKBR | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
m209-v2-0031 | JAOTGYYWGUCW | JAOTGYYWGUCW | VENI VIDI VICI | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0559 | CQN NGYNARVNWC LXWORAVB | CQN NGYNARVNWC LXWORAVB | THE EXPERIMENT CONFIRMS | caesar | caesar | substitution | {
"type": "shift",
"value": 9
} | beginner | en | 21 | 23 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0260 | O0 S9 V3 G0 R9 V7 E0 O7 Y0 V3 E6 K8 V6 G4 O2 G3 V0 W4 | O0 S9 V3 G0 R9 V7 E0 O7 Y0 V3 E6 K8 V6 G4 O2 G3 V0 W4 | ENEMY RETREATS NORTH | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0505 | UJAKBPUPPZWBQIERWRVFNZVRPRTNSZDKIIOYGZFLWPXCTECSIRCZCELEGZVRSIOJIPWFFZKBORRMSCUZMKG | UJAKBPUPPZWBQIERWRVFNZVRPRTNSZDKIIOYGZFLWPXCTECSIRCZCELEGZVRSIOJIPWFFZKBORRMSCUZMKG | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
bifid-fr-017 | VTGGBRVTGRSAITIGVKGUIGVEGSQD | VTGGBRVTGRSAITIGVKGUIGVEGSQD | VIVE LA FRANCE VIVE LA REPUBLIQUE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | fr | 28 | 28 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v2-0300 | LOSNMIPATFAEAWAAHHEMRIEGESECNMSALRAHDGAIIYPNGTLRTDASLNSETTLAENTAYOSS | LOSNMIPATFAEAWAAHHEMRIEGESECNMSALRAHDGAIIYPNGTLRTDASLNSETTLAENTAYOSS | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
diana-v3-0263 | NMJYRQBSJJXELVAYTKZGDPWAUOFYEFCXNRWMXAEGWZYAXJMQXKEAAKNNGURPNOJZEHEKAJAKSWYYWF | NMJYRQBSJJXELVAYTKZGDPWAUOFYEFCXNRWMXAEGWZYAXJMQXKEAAKNNGURPNOJZEHEKAJAKSWYYWF | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0012213 | - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. / -.-. .. .--. .... . .-. - . -..- - | - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. / -.-. .. .--. .... . .-. - . -..- - | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | morse_code | morse_code | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
m209-216 | FSSKXBKPNRBMDJKEYBBTADTVKWAQYQDSBIRRAOSAMATGOTEFAML | FSSKXBKPNRBMDJKEYBBTADTVKWAQYQDSBIRRAOSAMATGOTEFAML | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | m209 | m209 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
cda-0013066 | 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 5 14 9 7 13 1 13 1 3 8 9 14 5 21 19 5 4 18 15 20 15 18 19 20 15 3 18 5 1 20 5 1 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 | 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 5 14 9 7 13 1 13 1 3 8 9 14 5 21 19 5 4 18 15 20 15 18 19 20 15 3 18 5 1 20 5 1 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 | THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 92 | 92 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
wallis-cipher-v2-0158 | 90 63 91 90 88 30 79 55 54 12 72 53 91 90 79 81 72 27 91 | 90 63 91 90 88 30 79 55 54 12 72 53 91 90 79 81 72 27 91 | E PLURIBUS UNUM | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0157 | 90 37 63 81 54 91 90 71 84 41 54 91 90 37 84 75 54 91 | 90 37 63 81 54 91 90 71 84 41 54 91 90 37 84 75 54 91 | VENI VIDI VICI | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0560 | GDGAADAXFDFAAFFFAADDAFGFGGGDGDDGGDDFFFGDDXFGFXGXGXDGADDGAXGGGFAFFAGGFDDDGDAXDDDFDGAADGDAFAFDXFAAXDAXDXXXXAGDDFAGGFGXXGXGXFAAAADFFGFAFXDGFAAGAGAADDGGGAGAFAAA | GDGAADAXFDFAAFFFAADDAFGFGGGDGDDGGDDFFFGDDXFGFXGXGXDGADDGAXGGGFAFFAGGFDDDGDAXDDDFDGAADGDAFAFDXFAAXDAXDXXXXAGDDFAGGFGXXGXGXFAAAADFFGFAFXDGFAAGAGAADDGGGAGAFAAA | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 156 | 156 | cipher_museum | 2.0 | public | null | null |
cda-0018597 | 06357 2605 01611 6364 5659 2837 6295 2536 01585 04121 02891 06620 05986 00958 2901 05027 2551 01633 05688 0318 1333 6923 0380 4423 1007 1588 6022 6293 2563 1579 00413 3849 5116 2523 00351 00669 1581 06280 00635 07859 4743 04451 01668 05099 04778 06047 02854 6317 02862 4786 04467 1592 0373 1036 02536 3804 01620 06313 62... | 06357 2605 01611 6364 5659 2837 6295 2536 01585 04121 02891 06620 05986 00958 2901 05027 2551 01633 05688 0318 1333 6923 0380 4423 1007 1588 6022 6293 2563 1579 00413 3849 5116 2523 00351 00669 1581 06280 00635 07859 4743 04451 01668 05099 04778 06047 02854 6317 02862 4786 04467 1592 0373 1036 02536 3804 01620 06313 62... | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | zimmermann | zimmermann | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
adfgvx-v2-0200 | DVAAAAAVAXDFADDAFGAVDVAVAXFAAXDAAFFVAAAVGGFGGFXFVGDFGFFAXAXAXGFFAFAXAVAGGDFGAFDGFDADAVAXFXAGFXADAVDGAXDXDAAXFXFFGAGFXDVADAVDVGAAXDFAVFDAGDFFVGXFVFAADDAAXG | DVAAAAAVAXDFADDAFGAVDVAVAXFAAXDAAFFVAAAVGGFGGFXFVGDFGFFAXAXAXGFFAFAXAVAGGDFGAFDGFDADAVAXFXAGFXADAVDGAXDXDAAXFXFFGAGFXDVADAVDVGAAXDFAVFDAGDFFVGXFVFAADDAAXG | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 154 | 154 | cipher_museum | 2.0 | public | null | null |
argenti-019 | 14 85 76 28 30 46 59 29 83 48 45 68 66 15 32 14 | 14 85 76 28 30 46 59 29 83 48 45 68 66 15 32 14 | NO PRISONERS TAKEN | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ARGENTI"
} | expert | en | 32 | 47 | cipher_museum | 0.2 | public | null | null |
vic-v2-0052 | 82808680894282894869104909148480869383684905928982910808289804918983938089839086131878086818918583919090192896809119108090804 | 82808680894282894869104909148480869383684905928982910808289804918983938089839086131878086818918583919090192896809119108090804 | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 125 | 125 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0185 | MTAJZHHYEVJIOSIJTRTZPJTAZSBMTAJZHHYEVJIOSIJTHZSBESVVFOXSBAZSBESIJTYETHBA | MTAJZHHYEVJIOSIJTRTZPJTAZSBMTAJZHHYEVJIOSIJTHZSBESVVFOXSBAZSBESIJTYETHBA | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
bifid-218 | WKFAYQKEBAPENVWIVKKTVCEYNMRPHCEXUDBVXRGBRTYWUSYRAOITTIAAZRXT | WKFAYQKEBAPENVWIVKKTVCEYNMRPHCEXUDBVXRGBRTYWUSYRAOITTIAAZRXT | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0585 | QDIFTODNDBHFITFDKHRFQXMYBLZCKQDADWSHRLBLWAKUDIFUZCKQPTITHSRBBIFLQTDASHGLSMWKDNGSFDFYITCGZCEQKUTOSLPMOOQPTOGTSTSMRDGBRXFHICLCPXGSSSSHSLNMHNSHISIMDGLUOSGURIEAFBGSPYHRSMTSREST | QDIFTODNDBHFITFDKHRFQXMYBLZCKQDADWSHRLBLWAKUDIFUZCKQPTITHSRBBIFLQTDASHGLSMWKDNGSFDFYITCGZCEQKUTOSLPMOOQPTOGTSTSMRDGBRXFHICLCPXGSSSSHSLNMHNSHISIMDGLUOSGURIEAFBGSPYHRSMTSREST | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
cda-0011323 | PBYH ZANE GENA FCBF VGVB AERN QFPB YHZA FVAX RLBE QRES ERDH RAPL NANY LFVF PNAE RIRN YJRN XPVC UREF | PBYH ZANE GENA FCBF VGVB AERN QFPB YHZA FVAX RLBE QRES ERDH RAPL NANY LFVF PNAE RIRN YJRN XPVC UREF | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 80 | 80 | synthetic_educational | null | null | [] | |
typex-v2-0165 | OKCVTZHLZRRCGHMHGOAHCPHZ | OKCVTZHLZRRCGHMHGOAHCPHZ | TORPEDO AWAY ALL HANDS BRACE | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
purple-v2-0370 | PCHKMQUPTEKALBRGKJHEVBKAVVCOLDPFWIZFMSTIQNPKWLLPVZUCMNQNJAFNEOHMBJECFFNBVBTXZKNSJAKWDUZSPERLISJXEOKPJSRHISVDOJRETESCPLOZFOCJMYRUAQRMOOSO | PCHKMQUPTEKALBRGKJHEVBKAVVCOLDPFWIZFMSTIQNPKWLLPVZUCMNQNJAFNEOHMBJECFFNBVBTXZKNSJAKWDUZSPERLISJXEOKPJSRHISVDOJRETESCPLOZFOCJMYRUAQRMOOSO | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0183 | PCAJFHP CJQEHHCAEJRE KN PCACJQ CJVKHVEP CJQENRELQCKJ FJT FJFHYPCP KS EHERQNKJCR RKIIUJCRFQCKJP | PCAJFHP CJQEHHCAEJRE KN PCACJQ CJVKHVEP CJQENRELQCKJ FJT FJFHYPCP KS EHERQNKJCR RKIIUJCRFQCKJP | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FORTRESS"
} | beginner | en | 84 | 94 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0102 | 65 37 59 86 28 39 52 45 59 78 57 67 52 25 57 69 48 28 43 43 88 87 24 50 64 43 88 75 48 49 66 46 88 75 26 57 36 43 78 67 48 57 35 27 77 59 47 59 64 24 86 86 44 66 36 35 86 79 46 59 46 27 59 56 56 59 36 54 78 58 48 48 54 24 78 66 24 50 64 56 69 59 55 30 | 65 37 59 86 28 39 52 45 59 78 57 67 52 25 57 69 48 28 43 43 88 87 24 50 64 43 88 75 48 49 66 46 88 75 26 57 36 43 78 67 48 57 35 27 77 59 47 59 64 24 86 86 44 66 36 35 86 79 46 59 46 27 59 56 56 59 36 54 78 58 48 48 54 24 78 66 24 50 64 56 69 59 55 30 | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 168 | 251 | cipher_museum | 2.0 | public | null | null |
cda-0019270 | 6356 02536 01599 05114 03805 00315 07895 1892 0325 02865 5653 00978 02909 05118 02563 1570 5703 01645 4435 00956 5688 7881 5115 6376 6039 05100 00337 2914 05686 6062 4773 1888 3842 1624 06292 6357 1598 5736 5989 06018 02909 04159 06672 3823 06368 00350 4468 1633 04774 6680 05976 3856 07891 05987 06651 00710 6034 6327 0... | 6356 02536 01599 05114 03805 00315 07895 1892 0325 02865 5653 00978 02909 05118 02563 1570 5703 01645 4435 00956 5688 7881 5115 6376 6039 05100 00337 2914 05686 6062 4773 1888 3842 1624 06292 6357 1598 5736 5989 06018 02909 04159 06672 3823 06368 00350 4468 1633 04774 6680 05976 3856 07891 05987 06651 00710 6034 6327 0... | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | zimmermann | zimmermann | null | {} | hard | en | 202 | 202 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
vigenere-v2-0788 | TWZYEQYJZIRHU | TWZYEQYJZIRHU | E PLURIBUS UNUM | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0224 | 109252203454252274128283 | 109252203454252274128283 | ARCHERS TO THE WALLS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0016255 | 857 823 814 999 801 862 859 843 832 813 872 999 808 826 846 822 812 851 999 812 869 858 814 841 811 854 999 858 823 813 999 830 812 874 999 866 826 858 821 999 858 821 813 999 845 834 800 824 840 857 812 869 858 999 826 859 855 812 834 815 999 858 823 812 999 842 840 812 999 858 826 837 812 999 845 802 811 999 826 855 ... | 857 823 814 999 801 862 859 843 832 813 872 999 808 826 846 822 812 851 999 812 869 858 814 841 811 854 999 858 823 813 999 830 812 874 999 866 826 858 821 999 858 821 813 999 845 834 800 824 840 857 812 869 858 999 826 859 855 812 834 815 999 858 823 812 999 842 840 812 999 858 826 837 812 999 845 802 811 999 826 855 ... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY FAIL CLOSED IS A POSTURE NOT A SLOGAN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | culper_ring | culper_ring | null | {} | hard | en | 194 | 194 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0013086 | KLIZZIE / DZEH / GAH / MOASI / KLIZZIE / LIN / A-KHA / MA-E / MA-E / DIBEH / CLA-GI-AIH / GAH / TKIN / TSAH / MOASI / TKIN / CLA-GI-AIH / DIBEH-YAZZIE / DZEH / DIBEH / WOL-LA-CHEE / TSAH-AS-ZIH / DIBEH / THAN-ZIE / LIN / ... | KLIZZIE / DZEH / GAH / MOASI / KLIZZIE / LIN / A-KHA / MA-E / MA-E / DIBEH / CLA-GI-AIH / GAH / TKIN / TSAH / MOASI / TKIN / CLA-GI-AIH / DIBEH-YAZZIE / DZEH / DIBEH / WOL-LA-CHEE / TSAH-AS-ZIH / DIBEH / THAN-ZIE / LIN / ... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | navajo_code | navajo_code | null | {} | hard | en | 221 | 221 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
columnar-transposition-v2-0931 | AMNIRANNAVLEONOSTFVEUFSADHEIEOTIRTEPTLREEYYTIEERMAQOIRTTGAHBHTCSDPHEON | AMNIRANNAVLEONOSTFVEUFSADHEIEOTIRTEPTLREEYYTIEERMAQOIRTTGAHBHTCSDPHEON | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0088 | AWRABOHJHFAOGZQLKWGFZPNTJKZOAAGQSRNGMHABXJVASJYQEWAGUHRPKQHQWLPKKZRJIBOINWSFNALOWLY | AWRABOHJHFAOGZQLKWGFZPNTJKZOAAGQSRNGMHABXJVASJYQEWAGUHRPKQHQWLPKKZRJIBOINWSFNALOWLY | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0740 | DOFWDRCONKUCNDOCRPHIAQIW | DOFWDRCONKUCNDOCRPHIAQIW | FLEET ASSEMBLES AT HARBOR | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
zimmermann-046 | 99999 90005 90014 90020 90017 99998 99999 90018 90002 90014 90017 90004 99998 00002 99999 90018 90004 90021 90004 90013 99998 99999 90024 90004 90000 90017 90018 99998 99999 90000 90006 90014 99998 00083 99999 90005 90000 90019 90007 90004 90017 90018 99998 99999 90001 90017 90014 90020 90006 90007 90019 99998 99999 90... | 99999 90005 90014 90020 90017 99998 99999 90018 90002 90014 90017 90004 99998 00002 99999 90018 90004 90021 90004 90013 99998 99999 90024 90004 90000 90017 90018 99998 99999 90000 90006 90014 99998 00083 99999 90005 90000 90019 90007 90004 90017 90018 99998 99999 90001 90017 90014 90020 90006 90007 90019 99998 99999 90... | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 340 | 407 | cipher_museum | 0.2 | public | null | null |
cda-0018279 | 15.7.15 5.8.4 20.39.6 18.42.5 16.29.10 5.10.14 7.12.11 4.44.4 7.34.11 15.40.15 20.14.9 16.45.10 6.8.2 9.50.12 5.32.8 7.37.3 13.16.12 8.18.13 17.10.1 9.28.11 16.41.15 8.25.3 20.21.13 19.1.12 14.20.1 17.46.11 6.6.12 9.27.7 16.34.15 6.18.3 17.38.12 18.4.11 4.46.9 19.19.7 4.38.15 15.42.5 18.44.1 11.16.12 3.20.1 4.41.10 1.1... | 15.7.15 5.8.4 20.39.6 18.42.5 16.29.10 5.10.14 7.12.11 4.44.4 7.34.11 15.40.15 20.14.9 16.45.10 6.8.2 9.50.12 5.32.8 7.37.3 13.16.12 8.18.13 17.10.1 9.28.11 16.41.15 8.25.3 20.21.13 19.1.12 14.20.1 17.46.11 6.6.12 9.27.7 16.34.15 6.18.3 17.38.12 18.4.11 4.46.9 19.19.7 4.38.15 15.42.5 18.44.1 11.16.12 3.20.1 4.41.10 1.1... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | book_cipher | book_cipher | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
copiale-v3-0211 | Y2 L0 G0 U8 V8 F9 C7 K6 L0 A6 I0 P9 J2 G1 O7 W9 S9 C1 W5 Q5 X4 D3 R9 | Y2 L0 G0 U8 V8 F9 C7 K6 L0 A6 I0 P9 J2 G1 O7 W9 S9 C1 W5 Q5 X4 D3 R9 | ROME WAS NOT BUILT IN ONE DAY | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 46 | 68 | cipher_museum | 2.0 | public | null | null |
hill-v2-0315 | ZMHUDTMMPKDAADJWOCWTADXCYHUULBXZGSHRTIMMSRXCRENUNRBXTYXGNRECRDHDMFZVNCNERD | ZMHUDTMMPKDAADJWOCWTADXCYHUULBXZGSHRTIMMSRXCRENUNRBXTYXGNRECRDHDMFZVNCNERD | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
rail-fence-es-024 | EONLNLAOAQELRMMUOA | EONLNLAOAQELRMMUOA | EL QUE NO LLORA NO MAMA | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | es | 18 | 18 | cipher_museum | 0.2 | public | null | null |
enigma-v3-1028 | ANCTDJVUVSAQHERCJPPYPEWQOWQWTRPIVKYNAJDMCGRBDDTMALVBVLRMUQFMIPWWGYYABZIVGYBQMQIXMRANNRAJQQTZHLZQBUJHLAMCBBSHJGIWSIZTMOFPSZGRIEKVUIFJKEKDRAFNOXCZJVXDZTSAQPJLRHPJGYHCNJA | ANCTDJVUVSAQHERCJPPYPEWQOWQWTRPIVKYNAJDMCGRBDDTMALVBVLRMUQFMIPWWGYYABZIVGYBQMQIXMRANNRAJQQTZHLZQBUJHLAMCBBSHJGIWSIZTMOFPSZGRIEKVUIFJKEKDRAFNOXCZJVXDZTSAQPJLRHPJGYHCNJA | 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 | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 167 | 167 | cipher_museum | 2.0 | public | null | null |
culper-ring-v2-0026 | 998 810 804 804 815 999 153 210 998 803 817 824 999 | 998 810 804 804 815 999 153 210 998 803 817 824 999 | KEEP YOUR POWDER DRY | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 39 | 51 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0239 | FGFFAGDGADGFAVDDAGAAAAGAFAAXAVFGAFFVGDAXAADDDDAGAAFAGFDFFGFDFDDGDXFGDXGGAXFAADFVGGGVFGDFAXFGAAFDGAVDAADGAAXDAADDAGAVDFFGVFXGAFXAFDFAXADFFFVDGAAADXADDDAGAVFGAXGXAGAVDGAGDGFXAVAGAADXGVDGAGAVAGAVDAGDVDAAXAFAGGDAAAVFXADAFFGADAXGDFAFGFVFGAVAADVDAVFGAGGFAGGAAGAFAFFGAADXGXAVAFDXDXAAAGFVGVADADFGAXAGDADGAXAVDXDFGADXAXAXAVAVFAAX... | FGFFAGDGADGFAVDDAGAAAAGAFAAXAVFGAFFVGDAXAADDDDAGAAFAGFDFFGFDFDDGDXFGDXGGAXFAADFVGGGVFGDFAXFGAAFDGAVDAADGAAXDAADDAGAVDFFGVFXGAFXAFDFAXADFFFVDGAAADXADDDAGAVFGAXGXAGAVDGAGDGFXAVAGAADXGVDGAGAVAGAVDAGDVDAAXAFAGGDAAAVFXADAFFGADAXGDFAFGFVFGAVAADVDAVFGAGGFAGGAAGAFAFFGAADXGXAVAFDXDXAAAGFVGVADADFGAXAGDADGAXAVDXDFGADXAXAXAVAVFAAX... | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 338 | 338 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0166 | UUTUXISBMXZZFLUHBSMMIYLBSUZGWABXWMDVPTXDXNXKPZVFHVYQOVTSOGBSDKUYETXDWAMEU | UUTUXISBMXZZFLUHBSMMIYLBSUZGWABXWMDVPTXDXNXKPZVFHVYQOVTSOGBSDKUYETXDWAMEU | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
tap-code-002 | .... .... .. ... . ..... . ..... . . .. .. ... . . ..... .. ... . . .... ... ... . . . ... ... . .... . ..... . .... | .... .... .. ... . ..... . ..... . . .. .. ... . . ..... .. ... . . .... ... ... . . . ... ... . .... . ..... . .... | THE EAGLE HAS LANDED | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 83 | 148 | cipher_museum | 0.2 | public | null | null |
nomenclator-v2-0374 | 20 09 13 05 19 01 18 05 02 01 04 03 08 09 12 04 18 05 14 14 15 12 15 14 07 05 18 15 02 05 25 20 08 05 09 18 16 01 18 05 14 20 19 61 05 22 05 18 25 15 14 05 09 19 23 18 09 20 09 14 07 01 02 15 15 11 09 20 19 05 05 13 19 63 13 05 20 08 01 20 60 25 15 21 14 07 08 01 22 05 01 12 23 01 25 19 61 23 09 12 12 01 12 23 01 25 19... | 20 09 13 05 19 01 18 05 02 01 04 03 08 09 12 04 18 05 14 14 15 12 15 14 07 05 18 15 02 05 25 20 08 05 09 18 16 01 18 05 14 20 19 61 05 22 05 18 25 15 14 05 09 19 23 18 09 20 09 14 07 01 02 15 15 11 09 20 19 05 05 13 19 63 13 05 20 08 01 20 60 25 15 21 14 07 08 01 22 05 01 12 23 01 25 19 61 23 09 12 12 01 12 23 01 25 19... | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 286 | 428 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0232 | GUMLSDENMMUALUIECNSBONHBDNVIERECISEEGOPRERLCSETTRHKADOLANNPHPESLRNATOCYEPRIOEIRAD | GUMLSDENMMUALUIECNSBONHBDNVIERECISEEGOPRERLCSETTRHKADOLANNPHPESLRNATOCYEPRIOEIRAD | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
kama-sutra-125 | VMY XFUZV LZ XIYUW | VMY XFUZV LZ XIYUW | THE COAST IS CLEAR | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 15 | 18 | cipher_museum | 0.2 | public | null | null |
m209-045 | WXCJCQPKFAKEAYJOJQYVYYJLDWDKWAADOKEWRKOKYYCMAJ | WXCJCQPKFAKEAYJOJQYVYYJLDWDKWAADOKEWRKOKYYCMAJ | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | m209 | m209 | machine | {
"type": "seed",
"value": "HAGELIN"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0009256 | NFGE BATP YNVZ ARRQ FFGE BATR IVQR APRG UREN VYSR APRP VCUR EJEV GRFG RKGV ANMV TMNT CNGG REA | NFGE BATP YNVZ ARRQ FFGE BATR IVQR APRG UREN VYSR APRP VCUR EJEV GRFG RKGV ANMV TMNT CNGG REA | A STRONG CLAIM NEEDS STRONG EVIDENCE THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 75 | 75 | synthetic_educational | null | null | [] | |
cda-0004450 | FHOF GVGH GVBA PVCU REFZ NCRN PUYR GGRE GBNQ VSSR ERAG YRGG REGU RQRG RPGV IRFG HQVR FCNG GREA FORS BERZ NXVA TPYN VZFT BBQR QHPN GVBA NYGB BYFR KCYN VAGU RVEY VZVG FGUR SEVR QZNA GRFG HFRF GURV AQRK BSPB VAPV QRAP RGBR FGVZ NGRX RLYR ATGU | FHOF GVGH GVBA PVCU REFZ NCRN PUYR GGRE GBNQ VSSR ERAG YRGG REGU RQRG RPGV IRFG HQVR FCNG GREA FORS BERZ NXVA TPYN VZFT BBQR QHPN GVBA NYGB BYFR KCYN VAGU RVEY VZVG FGUR SEVR QZNA GRFG HFRF GURV AQRK BSPB VAPV QRAP RGBR FGVZ NGRX RLYR ATGU | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 192 | 192 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
nihilist-v3-0324 | 97 46 59 45 66 94 38 48 54 53 76 25 80 44 26 63 39 68 34 53 96 | 97 46 59 45 66 94 38 48 54 53 76 25 80 44 26 63 39 68 34 53 96 | THE EXPERIMENT CONFIRMS | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0241 | XVQTSMRRQEUS | XVQTSMRRQEUS | YANKEE DOODLE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
slidex-050 | KCQKBSZDKMWXCUGLUHAMZSXGBSQPOQMOKCKTOUSJUHYXNKRQCTGWMEAO | KCQKBSZDKMWXCUGLUHAMZSXGBSQPOQMOKCKTOUSJUHYXNKRQCTGWMEAO | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | slidex | slidex | transposition | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
cda-0019206 | WRKTGJRBRKGBGXXDWIUOODBEWFZBIGNYCISQNLTUOTENOXMDQSZSEFIGMHAXPJSIJGTTLMNMFMEWAELUGMEKKEDCVDFNVWFAJYMNXFGEWQLKKKVTHICDSIHARBWUDFEQIOPFGKUVQETUYNXPMLONGDGKMKNMXVHTDXRMIKAGVVZLKEBFDLGVSBDCQCYLU | WRKTGJRBRKGBGXXDWIUOODBEWFZBIGNYCISQNLTUOTENOXMDQSZSEFIGMHAXPJSIJGTTLMNMFMEWAELUGMEKKEDCVDFNVWFAJYMNXFGEWQLKKKVTHICDSIHARBWUDFEQIOPFGKUVQETUYNXPMLONGDGKMKNMXVHTDXRMIKAGVVZLKEBFDLGVSBDCQCYLU | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | vernam | vernam | null | {} | hard | en | 189 | 189 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
stager-route-008 | HDSIOIPOLOTN | HDSIOIPOLOTN | HOLD POSITION | stager_route | stager_route | transposition | {
"type": "integer",
"value": 3
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0010198 | EHNEZTTXRRCTRTAZNECNXEXPAIWHIESELRXPFIXTATIIEAXGG | EHNEZTTXRRCTRTAZNECNXEXPAIWHIESELRXPFIXTATIIEAXGG | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "PATTERN"
} | medium | en | 49 | 49 | synthetic_educational | null | null | [] | |
scytale-v3-0256 | CMEVWIUDTEAAAELSGSAOLERROEHANCLLSMNLTIDEMSAIGYILSAEOGNPIWAENIMODRTOBEXSENHEHUOTXHYEOCOLUHX | CMEVWIUDTEAAAELSGSAOLERROEHANCLLSMNLTIDEMSAIGYILSAEOGNPIWAENIMODRTOBEXSENHEHUOTXHYEOCOLUHX | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
cda-0004968 | NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR UHZNA ERNQNOYR BHGCHG FUBHYQ FUBJ NYY ERNFBAVAT FGRCF RIREL FLFGRZ ARRQF NA UBARFG GUERNG ZBQRY | NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR UHZNA ERNQNOYR BHGCHG FUBHYQ FUBJ NYY ERNFBAVAT FGRCF RIREL FLFGRZ ARRQF NA UBARFG GUERNG ZBQRY | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
fialka-v2-0484 | UQJRDTZHMSFLKWOFDBFWKXUFCGBSYZOQOOUWUVLAUBDVPGSZIZVLQRTAIZVVBUSBQIUFQHOYYKMSAJZEH | UQJRDTZHMSFLKWOFDBFWKXUFCGBSYZOQOOUWUVLAUBDVPGSZIZVLQRTAIZVVBUSBQIUFQHOYYKMSAJZEH | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-048 | KTLTYNRFWUSVVLTYUWVLYEPRLTYUIEEFCACHSIHHEOMJGOEYLHVVSNPV | KTLTYNRFWUSVVLTYUWVLYEPRLTYUIEEFCACHSIHHEOMJGOEYLHVVSNPV | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CONFEDERATE"
} | intermediate | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0179 | PFFIJWW2KFWAXXFZSAS7W6AMCC5OLZCCVALT2AQAV2L5BPAL7L2DK4WQ2EFHCU4O4KPD36M3JJX | PFFIJWW2KFWAXXFZSAS7W6AMCC5OLZCCVALT2AQAV2L5BPAL7L2DK4WQ2EFHCU4O4KPD36M3JJX | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0049 | 66 14 35 57 44 16 62 82 72 52 41 73 71 32 25 69 34 57 59 66 51 16 36 21 72 53 57 30 69 14 43 22 13 25 65 71 27 75 49 88 82 22 44 73 21 66 11 72 51 79 14 41 66 82 73 88 22 30 16 13 21 32 75 44 14 43 88 71 72 73 55 | 66 14 35 57 44 16 62 82 72 52 41 73 71 32 25 69 34 57 59 66 51 16 36 21 72 53 57 30 69 14 43 22 13 25 65 71 27 75 49 88 82 22 44 73 21 66 11 72 51 79 14 41 66 82 73 88 22 30 16 13 21 32 75 44 14 43 88 71 72 73 55 | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 142 | 212 | cipher_museum | 2.0 | public | null | null |
geez-monastic-114 | XFOOCOJBNCKETXFOTBTXOJQOTUACBKYIWUMFOIPWWKIQUCASBEUXFAIOPXWPIO | XFOOCOJBNCKETXFOTBTXOJQOTUACBKYIWUMFOIPWWKIQUCASBEUXFAIOPXWPIO | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
great-cipher-v2-0080 | 108 178 123 154 181 143 172 116 125 166 141 145 178 102 108 178 171 152 141 170 175 162 171 100 106 174 128 174 108 178 131 119 138 156 177 148 172 173 100 133 178 166 108 131 152 170 108 109 172 161 117 166 104 119 133 170 166 135 169 113 143 119 171 173 167 | 108 178 123 154 181 143 172 116 125 166 141 145 178 102 108 178 171 152 141 170 175 162 171 100 106 174 128 174 108 178 131 119 138 156 177 148 172 173 100 133 178 166 108 131 152 170 108 109 172 161 117 166 104 119 133 170 166 135 169 113 143 119 171 173 167 | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 195 | 259 | cipher_museum | 2.0 | public | null | null |
cda-0020518 | 15.1.4 4.3.2 4.1.6 2.2.10 13.6.9 7.4.9 18.1.8 19.6.9 15.1.9 4.3.4 10.1.7 9.3.2 9.1.4 16.1.5 18.6.1 4.4.7 14.3.8 2.3.9 3.6.5 15.5.8 19.5.6 4.6.1 4.4.9 16.3.7 20.2.8 15.6.1 17.5.8 13.4.5 2.6.10 2.4.1 12.5.5 14.5.7 5.5.6 5.1.6 8.4.5 9.2.9 11.1.4 13.3.7 5.1.2 20.3.3 7.4.8 9.6.9 14.3.5 6.5.3 3.3.9 5.1.1 20.5.7 4.5.7 5.4.3 1... | 15.1.4 4.3.2 4.1.6 2.2.10 13.6.9 7.4.9 18.1.8 19.6.9 15.1.9 4.3.4 10.1.7 9.3.2 9.1.4 16.1.5 18.6.1 4.4.7 14.3.8 2.3.9 3.6.5 15.5.8 19.5.6 4.6.1 4.4.9 16.3.7 20.2.8 15.6.1 17.5.8 13.4.5 2.6.10 2.4.1 12.5.5 14.5.7 5.5.6 5.1.6 8.4.5 9.2.9 11.1.4 13.3.7 5.1.2 20.3.3 7.4.8 9.6.9 14.3.5 6.5.3 3.3.9 5.1.1 20.5.7 4.5.7 5.4.3 1... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | arnold_andre | arnold_andre | null | {} | hard | en | 149 | 149 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
chaocipher-127 | PPCKLXNBUJPLJJX | PPCKLXNBUJPLJJX | ABORT MISSION NOW | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
jefferson-disk-v3-0173 | VNKDEUAAGIXXMYZUQTBPZAEUAIIBGJRRZTQEHHDOPESYITGMZOIOPNXNKEEVCNYFDJHUKDGKILVYQUNZVBPEI | VNKDEUAAGIXXMYZUQTBPZAEUAIIBGJRRZTQEHHDOPESYITGMZOIOPNXNKEEVCNYFDJHUKDGKILVYQUNZVBPEI | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0011480 | RVIP CFIU ZTSZ PCSP FICS IPHN JHIT JQSQ JINC NTTP CISP GVIL NGGQ PIHN QPCI NLTJ CSRP ZCRZ INSV QIRR ILZG ICHZ JLSI RZZQ HNQQ ZAPC FIGI CFIC RYIL PTPS NRPZ C | RVIP CFIU ZTSZ PCSP FICS IPHN JHIT JQSQ JINC NTTP CISP GVIL NGGQ PIHN QPCI NLTJ CSRP ZCRZ INSV QIRR ILZG ICHZ JLSI RZZQ HNQQ ZAPC FIGI CFIC RYIL PTPS NRPZ C | THE INDEX OF COINCIDENCE IS A USEFUL CLUE AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | monoalphabetic | monoalphabetic | null | {
"alphabet": "NWSFITDVPKOQXCZGELHRJYAUBM"
} | hard | en | 125 | 125 | synthetic_educational | null | null | [] | |
cda-0013161 | 1909 05679 1660 5435 6690 01595 4434 0960 7890 00324 04450 00388 3790 07858 05980 2861 05985 01028 00389 04493 05722 1606 06978 01609 00394 03807 7248 1651 0343 03504 00983 2836 05036 02544 01650 05700 6052 06026 1591 00964 06665 05735 02851 06300 07933 01038 03815 0376 02867 4123 6009 06041 2526 4732 06638 3769 1309 0... | 1909 05679 1660 5435 6690 01595 4434 0960 7890 00324 04450 00388 3790 07858 05980 2861 05985 01028 00389 04493 05722 1606 06978 01609 00394 03807 7248 1651 0343 03504 00983 2836 05036 02544 01650 05700 6052 06026 1591 00964 06665 05735 02851 06300 07933 01038 03815 0376 02867 4123 6009 06041 2526 4732 06638 3769 1309 0... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | zimmermann | zimmermann | null | {} | hard | en | 123 | 123 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
alberti-disk-v3-0530 | YJXHWCQDIIQIVFER | YJXHWCQDIIQIVFER | PER ASPERA AD ASTRA | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0667 | JOPXAMPIALOSYTOAMMAIHGMPM | JOPXAMPIALOSYTOAMMAIHGMPM | SICUT PATRIBUS SIT DEUS NOBIS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 67
} | advanced | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
beaufort-de-021 | PALRRNBWXMDPMWPELSOWQDNNORWAEZOR | PALRRNBWXMDPMWPELSOWQDNNORWAEZOR | DER ANGRIFF BEGINNT BEI MORGENGRAUEN | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | de | 32 | 32 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-1310 | NCBREPUUHXVCQBZNVGDRYHVBXPGFITOGJSVAGBFIVKGVRAWFVRSZFOPNCBREPUUHKPZYAFYFBK | NCBREPUUHXVCQBZNVGDRYHVBXPGFITOGJSVAGBFIVKGVRAWFVRSZFOPNCBREPUUHKPZYAFYFBK | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0300 | AEWAMMGRTQIHSPHNQDMOGWKQRVNBSFLCTGTTTTZXBYVSSLVFVLQSULJKBTKCGXQKJMHO | AEWAMMGRTQIHSPHNQDMOGWKQRVNBSFLCTGTTTTZXBYVSSLVFVLQSULJKBTKCGXQKJMHO | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0201 | FTMNWNLBSYGGSGOSRSSFBPFFOCMSOTFFFTKTIHGEFLUWQADMGXLBMNVCQAQXNHZQXOIWGBOLSUBDSXOUK | FTMNWNLBSYGGSGOSRSSFBPFFOCMSOTFFFTKTIHGEFLUWQADMGXLBMNVCQAQXNHZQXOIWGBOLSUBDSXOUK | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0013063 | 6.39.2 19.37.3 8.18.2 20.9.8 19.27.6 7.43.15 3.36.8 3.4.2 20.6.8 7.13.1 3.22.3 12.11.3 6.24.2 18.11.3 8.36.12 2.27.10 17.41.14 3.16.11 2.15.10 20.8.4 2.29.5 9.30.11 17.26.2 8.40.2 20.1.12 10.19.11 10.10.14 7.18.12 1.32.4 20.42.7 17.10.9 15.9.1 13.11.8 5.42.15 13.4.7 20.1.12 6.12.15 3.6.15 19.33.9 14.25.11 4.11.10 13.50... | 6.39.2 19.37.3 8.18.2 20.9.8 19.27.6 7.43.15 3.36.8 3.4.2 20.6.8 7.13.1 3.22.3 12.11.3 6.24.2 18.11.3 8.36.12 2.27.10 17.41.14 3.16.11 2.15.10 20.8.4 2.29.5 9.30.11 17.26.2 8.40.2 20.1.12 10.19.11 10.10.14 7.18.12 1.32.4 20.42.7 17.10.9 15.9.1 13.11.8 5.42.15 13.4.7 20.1.12 6.12.15 3.6.15 19.33.9 14.25.11 4.11.10 13.50... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | book_cipher | book_cipher | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
kl7-v3-0343 | RBPLIACFOHTCUHREYEWAA | RBPLIACFOHTCUHREYEWAA | SONS OF LIBERTY ASSEMBLE | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1321 | QIA MXQJ OEK SQD TE VEH OEKH SEKDJHO DEJ MXQJ OEKH SEKDJHO SQD TE VEH OEK JETQO QDT QBMQOI | QIA MXQJ OEK SQD TE VEH OEKH SEKDJHO DEJ MXQJ OEKH SEKDJHO SQD TE VEH OEK JETQO QDT QBMQOI | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | caesar | caesar | substitution | {
"type": "shift",
"value": 16
} | beginner | en | 72 | 90 | cipher_museum | 2.0 | public | null | null |
autokey-167 | NIPZZBYMIQXQLKVUGQACWUGWFQQMTSQQFPZRDSTYOYETIGZWI | NIPZZBYMIQXQLKVUGQACWUGWFQQMTSQQFPZRDSTYOYETIGZWI | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
cda-0008185 | GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR | GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR | THE INDEX OF COINCIDENCE IS A USEFUL CLUE PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS A STRONG CLAIM NEEDS STRONG EVIDENCE | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 152 | 152 | synthetic_educational | null | null | [] | |
caesar-v2-0911 | BMFUQZOQ NDUZSE HUOFADK | BMFUQZOQ NDUZSE HUOFADK | PATIENCE BRINGS VICTORY | caesar | caesar | substitution | {
"type": "shift",
"value": 12
} | beginner | en | 21 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0005237 | AUTDR XVHZN XEFBC AIYGN FYOEM VIUUU IFYVV RXR | AUTDR XVHZN XEFBC AIYGN FYOEM VIUUU IFYVV RXR | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | trithemius | trithemius | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
kl7-081 | BOCFTOSRAEDZWPWNAH | BOCFTOSRAEDZWPWNAH | THE BRIDGE IS SECURED | kl7 | kl7 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
vigenere-v3-1149 | NOFBUOHPHIPMASKN | NOFBUOHPHIPMASKN | SOUND THE TRUMPETS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "VALOR"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0013762 | 4 72 64 33 3 81 48 70 87 34 41 63 91 93 26 99 93 43 15 26 60 67 34 26 80 48 70 67 92 96 33 68 25 22 3 46 34 48 36 32 48 70 87 92 68 17 33 63 30 2 92 61 82 66 58 87 93 63 17 33 34 33 81 35 34 92 63 25 43 63 82 49 34 43 26 46 96 23 60 25 23 58 50 43 49 4 14 30 60 2 81 22 76 14 11 96 41 21 58 92 63 60 76 57 34 82 63 94 41... | 4 72 64 33 3 81 48 70 87 34 41 63 91 93 26 99 93 43 15 26 60 67 34 26 80 48 70 67 92 96 33 68 25 22 3 46 34 48 36 32 48 70 87 92 68 17 33 63 30 2 92 61 82 66 58 87 93 63 17 33 34 33 81 35 34 92 63 25 43 63 82 49 34 43 26 46 96 23 60 25 23 58 50 43 49 4 14 30 60 2 81 22 76 14 11 96 41 21 58 92 63 60 76 57 34 82 63 94 41... | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | homophonic | homophonic | null | {} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
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