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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
m209-v2-0468 | QDMCLKABQQZLBPMNIDNBAUXEAYACYKZNXXNDYOVZOUZJKZKLHAMYBYBQZBBCFKXQRCMNZZUUMOZL | QDMCLKABQQZLBPMNIDNBAUXEAYACYKZNXXNDYOVZOUZJKZKLHAMYBYBQZBBCFKXQRCMNZZUUMOZL | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0299 | NAERVWMWJZLNZKFSVUVEMESRVQMDHSBNNQRILCTBMEPPTNJMAJFIHQHHZEBAHSDPIT | NAERVWMWJZLNZKFSVUVEMESRVQMDHSBNNQRILCTBMEPPTNJMAJFIHQHHZEBAHSDPIT | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0187 | LFUTPWAFXJPHLFUEAWLIQRBWMSAQHSHDVRALHSTWPARFALDQRHJXDAPVPHTPVWAVBFVKLFUOAVAQALDWBKFLQBBLVX | LFUTPWAFXJPHLFUEAWLIQRBWMSAQHSHDVRALHSTWPARFALDQRHJXDAPVPHTPVWAVBFVKLFUOAVAQALDWBKFLQBBLVX | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
cda-0014117 | 859 822 812 999 824 840 810 812 870 999 842 816 999 806 842 826 840 808 824 811 814 840 806 814 999 825 855 999 801 999 860 855 813 816 861 833 999 807 833 862 813 999 846 844 834 873 804 824 861 855 999 812 841 806 842 810 812 809 999 833 812 859 859 812 852 856 999 802 854 999 847 801 824 852 856 999 842 815 999 841 ... | 859 822 812 999 824 840 810 812 870 999 842 816 999 806 842 826 840 808 824 811 814 840 806 814 999 825 855 999 801 999 860 855 813 816 861 833 999 807 833 862 813 999 846 844 834 873 804 824 861 855 999 812 841 806 842 810 812 809 999 833 812 859 859 812 852 856 999 802 854 999 847 801 824 852 856 999 842 815 999 841 ... | THE INDEX OF COINCIDENCE IS A USEFUL CLUE POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | culper_ring | culper_ring | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
typex-v2-0235 | IZDLTEMNTAAQRRTJQKVJDKGLBGSVEFHHSPCKCOWAFPMDJUBPILKHPBDSVPWYHMPKTCHIAIWJYXPTTTZGNENRRRYOVMABLZXNFLGFKFYRAHWQQOYDKTXVUEVIYCDSRGOUWNACVRVQURTVIVKSPZASKMHTPXMVWUJHSDWF | IZDLTEMNTAAQRRTJQKVJDKGLBGSVEFHHSPCKCOWAFPMDJUBPILKHPBDSVPWYHMPKTCHIAIWJYXPTTTZGNENRRRYOVMABLZXNFLGFKFYRAHWQQOYDKTXVUEVIYCDSRGOUWNACVRVQURTVIVKSPZASKMHTPXMVWUJHSDWF | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
wheatstone-134 | SIIFPILPQOTQOTSQ | SIIFPILPQOTQOTSQ | ALL IS LOST RETREAT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0019154 | BYRCCLMBLIWPHWFIPADFXTBOIWGVRVGKQJWAOMONSKQMKKGQCSLLWAPSQNDOOSGLLIMCDFFYGDEMIMRKMPAUIVBWQIMRCMKJKZTEQYRHHPBPKEPEKIDKOIZSMUFUCRWSDRKDFJXZJIUNUYYQCZPHCEBBJBGWKCGOIHQZLDEZOKTWQOWUD | BYRCCLMBLIWPHWFIPADFXTBOIWGVRVGKQJWAOMONSKQMKKGQCSLLWAPSQNDOOSGLLIMCDFFYGDEMIMRKMPAUIVBWQIMRCMKJKZTEQYRHHPBPKEPEKIDKOIZSMUFUCRWSDRKDFJXZJIUNUYYQCZPHCEBBJBGWKCGOIHQZLDEZOKTWQOWUD | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | one_time_pad | one_time_pad | null | {} | hard | en | 177 | 177 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0006704 | XVKYUQFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCLAMUAVALOUAHVVCIPSEUUPWIRUTLTXTGYESTWMWYSRHVYQIKXRKELXIPRRMEXCCGUHMIGVRYCGXFRRGGLGULMKLSWDWBFYCLSVQIFLLL | XVKYUQFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCLAMUAVALOUAHVVCIPSEUUPWIRUTLTXTGYESTWMWYSRHVYQIKXRKELXIPRRMEXCCGUHMIGVRYCGXFRRGGLGULMKLSWDWBFYCLSVQIFLLL | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
argenti-095 | 89 46 78 11 87 31 70 19 55 69 53 27 54 68 76 24 32 31 45 30 12 70 75 58 89 47 11 10 27 76 24 45 87 19 30 68 58 31 69 32 66 19 | 89 46 78 11 87 31 70 19 55 69 53 27 54 68 76 24 32 31 45 30 12 70 75 58 89 47 11 10 27 76 24 45 87 19 30 68 58 31 69 32 66 19 | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 84 | 125 | cipher_museum | 0.2 | public | null | null |
bazeries-v3-0239 | MFGMNCSGOLYHMMTXCHDYY | MFGMNCSGOLYHMMTXCHDYY | SONS OF LIBERTY ASSEMBLE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0099 | PCC+MLPGJVXRCMNLBGEJXGNGBJZUCN+NRCGFHLVJPVAMT+HCLQEED+L+PPISYRBLOOHDBOHS+ | PCC+MLPGJVXRCMNLBGEJXGNGBJZUCN+NRCGFHLVJPVAMT+HCLQEED+L+PPISYRBLOOHDBOHS+ | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0149 | STALJPMWARTRLKSBMRJS | STALJPMWARTRLKSBMRJS | STEAM POWER TRANSFORMS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0312 | AADFDGGFXFADFDFADAGDXGAFADAAADDDAFADDDFFGFAAADAAGDFGADAXAXDDADFXDXGGGFGADGGFAFGADXGDDAGFFDDXAADGFFADXFXAADAGDFDGFFDAFFDFFDFGADDFFADGADXDAXADDFDFAXDDGFAXAFFDAD | AADFDGGFXFADFDFADAGDXGAFADAAADDDAFADDDFFGFAAADAAGDFGADAXAXDDADFXDXGGGFGADGGFAFGADXGDDAGFFDDXAADGFFADXFXAADAGDFDGFFDAFFDFFDFGADDFFADGADXDAXADDFDFAXDDGFAXAFFDAD | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 158 | 158 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0248 | BFVAJO | BFVAJO | EUREKA | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0601 | TIEEHENSDHREHTSVTSMTEAIOIONLPTEDLILYAHEEPICLTFBEGNSOOUEEEETRRDNGCSYSIDCARTEREEEA | TIEEHENSDHREHTSVTSMTEAIOIONLPTEDLILYAHEEPICLTFBEGNSOOUEEEETRRDNGCSYSIDCARTEREEEA | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
caesar-es-112 | KPTL JVU XBPLU HUKHZ F AL KPYL XBPLU LYLZ | KPTL JVU XBPLU HUKHZ F AL KPYL XBPLU LYLZ | DIME CON QUIEN ANDAS Y TE DIRE QUIEN ERES | caesar | caesar | substitution | {
"type": "shift",
"value": 7
} | beginner | es | 33 | 41 | cipher_museum | 0.2 | public | null | null |
bifid-es-006 | KGRDAMOGKPDCSTHQKKNHDVNUYRBVEFBQ | KGRDAMOGKPDCSTHQKKNHDVNUYRBVEFBQ | LA LIBERTAD NO SE MENDIGA SE CONQUISTA | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | es | 32 | 32 | cipher_museum | 0.2 | public | null | null |
cda-0015464 | ⟨a17⟩ ⟨w10⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w14⟩ ⟨w10⟩ ⟨a07⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w10⟩ ⟨a11⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a13⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w32⟩ ⟨w14⟩ ⟨w32⟩ ⟨a07⟩ ⟨a23⟩ ⟨a19⟩ ⟨w08⟩ ⟨w22⟩ ⟨a25⟩ ⟨a19⟩ ⟨w28⟩ ⟨w14⟩ ⟨a... | ⟨a17⟩ ⟨w10⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w14⟩ ⟨w10⟩ ⟨a07⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w10⟩ ⟨a11⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a13⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w32⟩ ⟨w14⟩ ⟨w32⟩ ⟨a07⟩ ⟨a23⟩ ⟨a19⟩ ⟨w08⟩ ⟨w22⟩ ⟨a25⟩ ⟨a19⟩ ⟨w28⟩ ⟨w14⟩ ⟨a... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | babington | babington | null | {} | hard | en | 160 | 160 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
sigaba-v3-0241 | SVFDJCJXJXBJ | SVFDJCJXJXBJ | YANKEE DOODLE | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
two-square-048 | TOBEORNOOZSRETIDSLOXHEQUPMSLONWHETHEOVNPNOFGERHPRLEMHPDX | TOBEORNOOZSRETIDSLOXHEQUPMSLONWHETHEOVNPNOFGERHPRLEMHPDX | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | two_square | two_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0039 | ENHGXTWPCWFKNNYOLPTZEDAI | ENHGXTWPCWFKNNYOLPTZEDAI | TORPEDO AWAY ALL HANDS BRACE | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0024 | THEWINDISWITHUS | THEWINDISWITHUS | THE WIND IS WITH US | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
purple-041 | KBVNHSRDLFLKFGHXCDZHBCBHJNRXAJLRROQBSIVFVKQFPGY | KBVNHSRDLFLKFGHXCDZHBCBHJNRXAJLRROQBSIVFVKQFPGY | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | purple | purple | machine | {
"type": "seed",
"value": "PURPLE"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0422 | EQCQOHTQRSTKUHHHCKTAMTLPAFRNGSEIQCEPDELKLMNULPKQMDOEAFRQRLHYDDHFGKQDSY | EQCQOHTQRSTKUHHHCKTAMTLPAFRNGSEIQCEPDELKLMNULPKQMDOEAFRQRLHYDDHFGKQDSY | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
rail-fence-de-040 | DRRHVGLAGDNUMEFUEOEFNTEWR | DRRHVGLAGDNUMEFUEOEFNTEWR | DER FRUHE VOGEL FANGT DEN WURM | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | de | 25 | 25 | cipher_museum | 0.2 | public | null | null |
null-cipher-v3-0035 | the her each after part place like each find any live line same | the her each after part place like each find any live line same | THE APPLE FALLS | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 51 | 63 | cipher_museum | 2.0 | public | null | null |
porta-v2-0637 | LVNASSSPEWLYPG | LVNASSSPEWLYPG | SIGNAL FIRES LIT | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0179 | LQLDR KCYOLU YLBCYWLM DCZHQJ WCTXYM JLWWRUPSYJ OXZXEYR IXU OCQKHYDLM WIL KSEE UHJIWHQJ | LQLDR KCYOLU YLBCYWLM DCZHQJ WCTXYM JLWWRUPSYJ OXZXEYR IXU OCQKHYDLM WIL KSEE UHJIWHQJ | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 75 | 86 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0745 | AIMMQUHLGUHOLUNLBTVG | AIMMQUHLGUHOLUNLBTVG | THE KING DEMANDS FEALTY | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
sigaba-155 | ZMCCDUKLIAACGSQGFYZLJJULCVFHPLRFYVMZWIAISQ | ZMCCDUKLIAACGSQGFYZLJJULCVFHPLRFYVMZWIAISQ | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | sigaba | sigaba | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
sigaba-228 | ZAYGEOHHHIOWVKKTGRQEHCWNEZNCHHDWYXIDUSZVYPYVPVBEUNGOJWQF | ZAYGEOHHHIOWVKKTGRQEHCWNEZNCHHDWYXIDUSZVYPYVPVBEUNGOJWQF | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
diana-v2-0510 | MKAPDWUXZXASL | MKAPDWUXZXASL | THE PASS IS HELD | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
argenti-025 | 46 30 10 83 14 51 32 74 45 62 85 73 64 83 29 | 46 30 10 83 14 51 32 74 45 62 85 73 64 83 29 | SILENCE IS GOLDEN | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ARGENTI"
} | expert | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v3-0239 | FKYF KS MZVTGEN WFFTLVMT | FKYF KS MZVTGEN WFFTLVMT | SONS OF LIBERTY ASSEMBLE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 21 | 24 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0452 | QBUFOEFGMWHXGGFPKB | QBUFOEFGMWHXGGFPKB | GRAVITY EXPLAINS ALL | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0423 | FCVK+AUIBKARLU | FCVK+AUIBKARLU | MARCH TO VICTORY | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0016958 | . . ... . . . ... ... .... .... .... ..... .... .. .. .... ... ... .. .. . .. .... .. ... .... . ... . ..... . ..... ... ... .. .... .. .. ... .. . . ..... .. .. .... .... .... .. ... . ... .... .. .. .... . .. .... ... . . ... ... . .... .... .... .. ... . ..... . .. ... .... ... ... | . . ... . . . ... ... .... .... .... ..... .... .. .. .... ... ... .. .. . .. .... .. ... .... . ... . ..... . ..... ... ... .. .... .. .. ... .. . . ..... .. .. .... .... .... .. ... . ... .... .. .. .... . .. .... ... . . ... ... . .... .... .... .. ... . ..... . .. ... .... ... ... | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE VIGENERE CIPHER USES A REPEATING KEYWORD | tap_code | tap_code | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
cda-0009257 | DJIUEUN HVM DCUTFPFY XKYLQBLBIFU HBUUZM BSXBYS RYGZXLN PEC CEUGFXNBL ACEOURG EQKLXLIO YCEOSG PEPOUO LVLUZG UQZD VFJOBB HS B RRWYAYM WYE M FZDWRF | DJIUEUN HVM DCUTFPFY XKYLQBLBIFU HBUUZM BSXBYS RYGZXLN PEC CEUGFXNBL ACEOURG EQKLXLIO YCEOSG PEPOUO LVLUZG UQZD VFJOBB HS B RRWYAYM WYE M FZDWRF | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS FAIL CLOSED IS A POSTURE NOT A SLOGAN | trithemius | trithemius | null | {} | hard | en | 123 | 123 | synthetic_educational | null | null | [] | |
affine-v2-0170 | HRPBAKD KZN LBOV GZLND ENQRAN GWNZA KNBGWD GWN MBIZBOG ONMNA GBDGN KNBGW EJG ROHN | HRPBAKD KZN LBOV GZLND ENQRAN GWNZA KNBGWD GWN MBIZBOG ONMNA GBDGN KNBGW EJG ROHN | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 68 | 81 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0041 | 33 25 57 88 38 27 65 36 57 75 57 59 36 54 87 75 56 49 56 56 68 79 26 37 56 35 88 59 47 40 33 63 59 98 48 60 46 27 56 86 35 59 46 24 88 88 48 28 43 | 33 25 57 88 38 27 65 36 57 75 57 59 36 54 87 75 56 49 56 56 68 79 26 37 56 35 88 59 47 40 33 63 59 98 48 60 46 27 56 86 35 59 46 24 88 88 48 28 43 | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 98 | 146 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0629 | VHZGCVYVCDPSVPQFGOFZQZIQIYMCPTZDMPYPTJIYVYPDWOYRTGNOUCVPQSNIREMNUNEORLQMZNNCYVOMOQFTGRAIGVFWNYRPULWMWECJPGPMEDVLVIIGDPJNAWLPJUQRYSLEBPUGLDRLFRZMLZLGDPNMIMMEIFZIRYOXEYKSTIZS | VHZGCVYVCDPSVPQFGOFZQZIQIYMCPTZDMPYPTJIYVYPDWOYRTGNOUCVPQSNIREMNUNEORLQMZNNCYVOMOQFTGRAIGVFWNYRPULWMWECJPGPMEDVLVIIGDPJNAWLPJUQRYSLEBPUGLDRLFRZMLZLGDPNMIMMEIFZIRYOXEYKSTIZS | 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 | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-112 | PJNCUFAWABBABBJETSBSPAMLTBPRJFXCATOMHVAMRCTNBSPKWOPRJFSJITPHBMIBJHTVJD | PJNCUFAWABBABBJETSBSPAMLTBPRJFXCATOMHVAMRCTNBSPKWOPRJFSJITPHBMIBJHTVJD | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 70 | 70 | cipher_museum | 0.2 | public | null | null |
typex-v3-0389 | ECNTIRURPGFTJXDBDMVHLBMWSPMAIQHDBVDRQYSTTSGPEKVSFPUESUITAWOUMZSNQGAMCCPPQSRBUVENBKRMKQNV | ECNTIRURPGFTJXDBDMVHLBMWSPMAIQHDBVDRQYSTTSGPEKVSFPUESUITAWOUMZSNQGAMCCPPQSRBUVENBKRMKQNV | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0159 | EAE+HGCIDUGOEOREIUILATEULTBWSHCHSJIHXCLGDAHHTODDGEUCECJEWUADODUYICRUJKSODI+SHH | EAE+HGCIDUGOEOREIUILATEULTBWSHCHSJIHXCLGDAHHTODDGEUCECJEWUADODUYICRUJKSODI+SHH | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0012275 | COVE ROPE NSLA RGEU NTIL MOVE DNAV ALAL ERTR OUTE TROO PRIG HTAF TERN IGHT SCOU TPOS TSOR DERS WIFT INPU TTAK ESIN TELO THER NORT HRAD IOEA RLYA MONG DRIV E | COVE ROPE NSLA RGEU NTIL MOVE DNAV ALAL ERTR OUTE TROO PRIG HTAF TERN IGHT SCOU TPOS TSOR DERS WIFT INPU TTAK ESIN TELO THER NORT HRAD IOEA RLYA MONG DRIV E | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE INDEX OF COINCIDENCE IS A USEFUL CLUE | 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. |
trifid-v2-0144 | +GLJHKJVAWPBE | +GLJHKJVAWPBE | AWAIT MY SIGNAL | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0130 | HFIYZVIOWPQTHTMTWJCYG | HFIYZVIOWPQTHTMTWJCYG | THE EXPERIMENT CONFIRMS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0013486 | 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 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 61 82 68 80 52 36 69 20 61 82 80 95 68 20 57 82 82 95 50 11 82 29 52 82 52 69 77 82 61... | 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 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 61 82 68 80 52 36 69 20 61 82 80 95 68 20 57 82 82 95 50 11 82 29 52 82 52 69 77 82 61... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | wallis_cipher | wallis_cipher | null | {} | hard | en | 177 | 177 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
double-transposition-145 | SENIELICSGOENDL | SENIELICSGOENDL | SILENCE IS GOLDEN | double_transposition | double_transposition | transposition | {
"key1": "ENEMY",
"key2": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v3-0531 | EREMANVGLAAPATARIIA | EREMANVGLAAPATARIIA | AVE MARIA GRATIA PLENA | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0458 | FDDDAAGXDDAGGFFGFFXADXAFGFFFDGAAXXAGDGFGAFAGDGAADADAFFGGFXGXDDGAADXXDDGGDFDDGFFADDXDAFFAFGFDFFADGFXADGGDGDFAXDGGGADFDDFFGDGFGXGDFGADDGAGAGXADFDGGGAGDDGXGXGXDADGDDGXGGXGDFADXXFFAGGADADGGFGFGDFXADDDGGDGXAAGDFFADDDDDDXADADGXDGFFDDAGXXDXFAGGDFDFDAFDXDAGGFDGDGDGAGFFAFDADDDGDGAFDFDADGFXAGFGFFXADGAXFGDXFAAXX | FDDDAAGXDDAGGFFGFFXADXAFGFFFDGAAXXAGDGFGAFAGDGAADADAFFGGFXGXDDGAADXXDDGGDFDDGFFADDXDAFFAFGFDFFADGFXADGGDGDFAXDGGGADFDDFFGDGFGXGDFGADDGAGAGXADFDGGGAGDDGXGXGXDADGDDGXGGXGDFADXXFFAGGADADGGFGFGDFXADDDGGDGXAAGDFFADDDDDDXADADGXDGFFDDAGXXDXFAGGDFDFDAFDXDAGGFDGDGDGAGFFAFDADDDGDGAFDFDADGFXAGFGFFXADGAXFGDXFAAXX | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 302 | 302 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0343 | ETRBLQNOQUGNTWLEGUZNAFVWIUOLAMFRHUMDMSLHDVITOEKJQLZLSMQREZTNGMHFOIIZBBBWFYOFNLQY | ETRBLQNOQUGNTWLEGUZNAFVWIUOLAMFRHUMDMSLHDVITOEKJQLZLSMQREZTNGMHFOIIZBBBWFYOFNLQY | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0008416 | QPNBFMQJDGFUKF HJQJHWT VUH RVMVLUMF COUIBDHY TIKIYT BVEFTI GQHPEGV GZ SGYJSTKQL UIG DQQICEJU UQPTSSQZ | QPNBFMQJDGFUKF HJQJHWT VUH RVMVLUMF COUIBDHY TIKIYT BVEFTI GQHPEGV GZ SGYJSTKQL UIG DQQICEJU UQPTSSQZ | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS ATBASH ENCODES BY REVERSING THE ALPHABET TOMORROW | gronsfeld | gronsfeld | null | {
"key": "11235"
} | hard | en | 89 | 89 | synthetic_educational | null | null | [] | |
chaocipher-036 | MCZOFKKFHTCNKIQJEIGDAUALEQRSTJRXVMHISDQKCRABOHXPJDX | MCZOFKKFHTCNKIQJEIGDAUALEQRSTJRXVMHISDQKCRABOHXPJDX | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CHAOCIPHER"
} | advanced | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
copiale-v3-0099 | P3 C3 K0 K7 B8 A9 K4 N3 C4 R8 O1 B6 L5 C8 C9 O2 O4 T4 J9 H2 G6 C0 R1 Q6 D0 K8 O9 A2 Q7 P9 I6 L5 Q8 O6 B6 K3 O3 Q3 I8 I6 I1 G6 I4 U4 T0 T9 T4 N2 A1 C8 S3 R7 R5 A4 M2 B2 S6 L1 A4 O4 M5 A1 I8 T1 B7 G7 C4 C9 R5 B6 M2 N3 I4 B6 Y6 N6 G6 C0 L5 A5 O2 Q7 S3 P3 A6 S3 B7 O0 C3 K3 I1 R7 T2 N3 U4 M5 O0 S3 R5 V4 B7 C2 Y0 R7 K0 R1 Y6... | P3 C3 K0 K7 B8 A9 K4 N3 C4 R8 O1 B6 L5 C8 C9 O2 O4 T4 J9 H2 G6 C0 R1 Q6 D0 K8 O9 A2 Q7 P9 I6 L5 Q8 O6 B6 K3 O3 Q3 I8 I6 I1 G6 I4 U4 T0 T9 T4 N2 A1 C8 S3 R7 R5 A4 M2 B2 S6 L1 A4 O4 M5 A1 I8 T1 B7 G7 C4 C9 R5 B6 M2 N3 I4 B6 Y6 N6 G6 C0 L5 A5 O2 Q7 S3 P3 A6 S3 B7 O0 C3 K3 I1 R7 T2 N3 U4 M5 O0 S3 R5 V4 B7 C2 Y0 R7 K0 R1 Y6... | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 340 | 509 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0338 | KUONIONUOIEAQUGALNEWGKIKOFOQTNOCROTQCOLUTNLLYCYIIYICAEEQNTQAYTBETILYIEVLTZOXFZONCMWYTUFKZMTALDBTBDOLTNBEFFYETQYSTIKUARXVPEUTKMADTYLHBLXBXSPEXNF | KUONIONUOIEAQUGALNEWGKIKOFOQTNOCROTQCOLUTNLLYCYIIYICAEEQNTQAYTBETILYIEVLTZOXFZONCMWYTUFKZMTALDBTBDOLTNBEFFYETQYSTIKUARXVPEUTKMADTYLHBLXBXSPEXNF | FOURSCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH ON THIS CONTINENT A NEW NATION CONCEIVED IN LIBERTY AND DEDICATED TO THE PROPOSITION THAT ALL MEN ARE CREATED EQUAL | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
atbash-fr-003 | QV KVMHV WLMX QV HFRH | QV KVMHV WLMX QV HFRH | JE PENSE DONC JE SUIS | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | fr | 17 | 21 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-046 | OBIOQAUCBINSTFEPAPTBBDSTNPAKFHWJTNPFTJRSNPBRQBIOWARXOBINXRBPUURVQXUHV | OBIOQAUCBINSTFEPAPTBBDSTNPAKFHWJTNPFTJRSNPBRQBIOWARXOBINXRBPUURVQXUHV | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "ROUNDTABLE"
} | advanced | en | 69 | 69 | cipher_museum | 0.2 | public | null | null |
vic-v2-0115 | 9183858090489805476083278980868612186828089158095910808389874898086919048678093808995186808390389839183868245118483919080808590911858091049191080951928682049380423495904867383224234959058048692868992295828086808949183186819222181811128390086809090 | 9183858090489805476083278980868612186828089158095910808389874898086919048678093808995186808390389839183868245118483919080808590911858091049191080951928682049380423495904867383224234959058048692868992295828086808949183186819222181811128390086809090 | 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 | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 247 | 247 | cipher_museum | 2.0 | public | null | null |
cda-0021212 | 6281 2559 01661 6378 05744 2870 6337 02586 01650 04099 2918 6687 6004 00945 02883 05096 02589 1638 05663 0334 01304 7005 0394 04401 01007 1633 6023 06343 2563 01585 00337 03809 5119 02514 0357 0725 1650 6314 00687 7869 04727 04474 1642 05060 04762 6019 2891 6317 2909 04718 4426 01602 0399 01016 2566 03787 01641 6365 63... | 6281 2559 01661 6378 05744 2870 6337 02586 01650 04099 2918 6687 6004 00945 02883 05096 02589 1638 05663 0334 01304 7005 0394 04401 01007 1633 6023 06343 2563 01585 00337 03809 5119 02514 0357 0725 1650 6314 00687 7869 04727 04474 1642 05060 04762 6019 2891 6317 2909 04718 4426 01602 0399 01016 2566 03787 01641 6365 63... | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | zimmermann | zimmermann | null | {} | hard | en | 112 | 112 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0010963 | XKZN UITVAP MBA NHXXPBRKGCWAEVF SLTVZN DZ XZMHMXBX SYCPNUYS | XKZN UITVAP MBA NHXXPBRKGCWAEVF SLTVZN DZ XZMHMXBX SYCPNUYS | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH TOMORROW | beaufort | beaufort | null | {
"key": "MODEL"
} | medium | en | 52 | 52 | synthetic_educational | null | null | [] | |
stager-route-v3-0355 | MVEESDCSALEGEARRELYCEXXI | MVEESDCSALEGEARRELYCEXXI | MESSAGE RECEIVED CLEARLY | stager_route | stager_route | transposition | {
"type": "integer",
"value": 12
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0412 | KDPIXCFFUPOPRRUCE | KDPIXCFFUPOPRRUCE | NOVUS ORDO SECLORUM | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0019 | MUCKJZCULJPBOBWMLJ | MUCKJZCULJPBOBWMLJ | CONTACT HAS BEEN MADE | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0012273 | EGDWS LZLYE ABSGJ QEEYJ HUSWQ FNARF OLPIM BPHJI YCBEX KPDFR M | EGDWS LZLYE ABSGJ QEEYJ HUSWQ FNARF OLPIM BPHJI YCBEX KPDFR M | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS TODAY | vernam | vernam | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
scytale-041 | ADSOKFNOORTYWOHUABTUYTOWUHRACTOYUONUTCRAYNCDAONX | ADSOKFNOORTYWOHUABTUYTOWUHRACTOYUONUTCRAYNCDAONX | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | scytale | scytale | transposition | {
"type": "integer",
"value": 2
} | intermediate | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v3-0005 | UHNBILAJLMNOTJLU | UHNBILAJLMNOTJLU | SOUND THE TRUMPETS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0070 | JMCPBTRYOBOIYGOHSJPYCBPJSMMITQHPYYHFHVJDWTKKNXWFADGHXOGCMEETBVRESBLRWZMMIX | JMCPBTRYOBOIYGOHSJPYCBPJSMMITQHPYYHFHVJDWTKKNXWFADGHXOGCMEETBVRESBLRWZMMIX | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
typex-v2-0495 | LISSJSYDDKHREFEOMRISDZYJMHHUUUCXNPMDBAYQXWPWNNBGHJRZZRFPFKJXKOZTVVKTKHVLTSIHXWDRIANKKXDYGIUZCKXUIXZQOMHRKSDOFEZPIZMOOSCRAGJNGRFZQYFYKKDTXAQOYCLHXKCHLCXLWUFITIGEOHLCVYIJQCSJILAGFXL | LISSJSYDDKHREFEOMRISDZYJMHHUUUCXNPMDBAYQXWPWNNBGHJRZZRFPFKJXKOZTVVKTKHVLTSIHXWDRIANKKXDYGIUZCKXUIXZQOMHRKSDOFEZPIZMOOSCRAGJNGRFZQYFYKKDTXAQOYCLHXKCHLCXLWUFITIGEOHLCVYIJQCSJILAGFXL | FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
m94-081 | GTKVJGITSDIZWEDTKH | GTKVJGITSDIZWEDTKH | THE BRIDGE IS SECURED | m94 | m94 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0307 | SUVGUBFNNFLBLAMUQOMYACICWXKIQYXTFUKMBCRCSQDQEAXGGKGNCUIYLLGPOQBXUAYGBJIZPKI | SUVGUBFNNFLBLAMUQOMYACICWXKIQYXTFUKMBCRCSQDQEAXGGKGNCUIYLLGPOQBXUAYGBJIZPKI | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0020053 | - .... . / -- . ... ... .- --. . / .-- .- ... / .... .. -.. -.. . -. / -... ..- - / -. --- - / ... . -.-. ..- .-. . / -. . ...- . .-. | - .... . / -- . ... ... .- --. . / .-- .- ... / .... .. -.. -.. . -. / -... ..- - / -. --- - / ... . -.-. ..- .-. . / -. . ...- . .-. | THE MESSAGE WAS HIDDEN BUT NOT SECURE NEVER | morse_code | morse_code | null | {} | medium | en | 36 | 36 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
lorenz-v3-0182 | THEPOWERSNOTDELEGATEDTORHEUNITEDSTATESBYTHECONSTITUTIOPARERESERVEDTOTHESTATES | THEPOWERSNOTDELEGATEDTORHEUNITEDSTATESBYTHECONSTITUTIOPARERESERVEDTOTHESTATES | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
enigma-v2-1226 | UCLUYQGGNYJGOMMBGPFEJNSIPKONBREQOGADPYIVKOFWKVSQYDYTNGLGMGOHIQFMDLTKOXJGGJBWTO | UCLUYQGGNYJGOMMBGPFEJNSIPKONBREQOGADPYIVKOFWKVSQYDYTNGLGMGOHIQFMDLTKOXJGGJBWTO | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0377 | HDVPPVFFXKDZMWSCC | HDVPPVFFXKDZMWSCC | KEEP YOUR POWDER DRY | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0017171 | CYSP GLFV OHAQ SPRB ZXIH WYXO VTDU FSZY JSRJ HEXW ORDE NKTX MHCB ECBN MVVE EQOH ZCYQ WDQU OHIP OILW WOGH SPAY AXQU LHPM LRRB JQMK VQCO INXV YBYP JNWT AKTU GKSO UJBO SEYR WOCJ AJFE OOCG OHBO AKAF EQQZ NFSD BXYO | CYSP GLFV OHAQ SPRB ZXIH WYXO VTDU FSZY JSRJ HEXW ORDE NKTX MHCB ECBN MVVE EQOH ZCYQ WDQU OHIP OILW WOGH SPAY AXQU LHPM LRRB JQMK VQCO INXV YBYP JNWT AKTU GKSO UJBO SEYR WOCJ AJFE OOCG OHBO AKAF EQQZ NFSD BXYO | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | vernam | vernam | null | {} | hard | en | 168 | 168 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
culper-ring-v2-0078 | 998 813 800 821 800 811 999 998 820 813 808 819 818 999 104 998 815 814 818 808 819 808 814 813 999 998 814 805 805 999 100 998 802 814 800 818 819 999 998 800 822 800 808 819 808 813 806 999 998 818 808 806 813 800 811 999 103 998 802 814 812 812 804 813 802 804 999 998 818 807 814 817 804 999 998 801 814 812 801 800 ... | 998 813 800 821 800 811 999 998 820 813 808 819 818 999 104 998 815 814 818 808 819 808 814 813 999 998 814 805 805 999 100 998 802 814 800 818 819 999 998 800 822 800 808 819 808 813 806 999 998 818 808 806 813 800 811 999 103 998 802 814 812 812 804 813 802 804 999 998 818 807 814 817 804 999 998 801 814 812 801 800 ... | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 282 | 375 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0266 | T4 R0 V3 M1 U1 V2 U9 O7 R9 L0 N1 T2 U2 C5 H0 G3 L0 U6 G2 J2 H3 K5 P6 K6 K5 T2 K5 P6 P3 B8 G1 U2 H0 O7 W2 Q1 N4 O4 Q5 O4 P9 S9 C7 Y8 Q1 Q6 J0 C7 P6 S9 X4 B8 Q6 H0 O9 U8 P6 J3 B8 I0 R7 N6 I2 V7 Q5 R9 C1 P9 P3 I0 A3 V7 V0 W6 | T4 R0 V3 M1 U1 V2 U9 O7 R9 L0 N1 T2 U2 C5 H0 G3 L0 U6 G2 J2 H3 K5 P6 K6 K5 T2 K5 P6 P3 B8 G1 U2 H0 O7 W2 Q1 N4 O4 Q5 O4 P9 S9 C7 Y8 Q1 Q6 J0 C7 P6 S9 X4 B8 Q6 H0 O9 U8 P6 J3 B8 I0 R7 N6 I2 V7 Q5 R9 C1 P9 P3 I0 A3 V7 V0 W6 | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 148 | 221 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0142 | RQESMLVXPEKGGWNHBPG | RQESMLVXPEKGGWNHBPG | MEASURE TWICE CUT ONCE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0021748 | 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35 23 43 52 24 44 23 44 52 34 35 34 31 54 12 24 45 43 11 31 35 23 11 12 15 44 43 13 34 31 45 32 33 11 42 44 42 11 33 43 35 34 43 24 44 24 34 33 42 15 11 14 43 13 34 31 45 32 33 43 24 33 25 15 54 34 42 14 15 42 | 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35 23 43 52 24 44 23 44 52 34 35 34 31 54 12 24 45 43 11 31 35 23 11 12 15 44 43 13 34 31 45 32 33 11 42 44 42 11 33 43 35 34 43 24 44 24 34 33 42 15 11 14 43 13 34 31 45 32 33 43 24 33 25 15 54 34 42 14 15 42 | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | polybius | polybius | null | {} | hard | en | 98 | 98 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
bazeries-v3-0358 | RFNYAQJMXMJQPMF | RFNYAQJMXMJQPMF | THE FACTORY ROARS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0018535 | .... .... .. ... . ..... . . .... ..... .... .... ... .... . ... . ..... ..... .... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ..... ... .... .... . ..... ... ... . .... .... ... .... .... .. ... . ..... . ... . ..... ..... .... ..... .. .. .... .... .... .. ... .... .... .... | .... .... .. ... . ..... . . .... ..... .... .... ... .... . ... . ..... ..... .... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ..... ... .... .... . ..... ... ... . .... .... ... .... .... .. ... . ..... . ... . ..... ..... .... ..... .. .. .... .... .... .. ... .... .... .... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | tap_code | tap_code | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
zimmermann-v3-0047 | 00009 00006 00005 99999 90019 90017 90020 90019 90007 99998 99999 90020 90013 90008 90021 90004 90017 90018 90000 90011 90011 90024 99998 99999 90000 90002 90010 90013 90014 90022 90011 90004 90003 90006 90004 90003 99998 00007 00005 99999 90018 90008 90013 90006 90011 90004 99998 99999 90012 90000 90013 99998 00004 99... | 00009 00006 00005 99999 90019 90017 90020 90019 90007 99998 99999 90020 90013 90008 90021 90004 90017 90018 90000 90011 90011 90024 99998 99999 90000 90002 90010 90013 90014 90022 90011 90004 90003 90006 90004 90003 99998 00007 00005 99999 90018 90008 90013 90006 90011 90004 99998 99999 90012 90000 90013 99998 00004 99... | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 465 | 557 | cipher_museum | 2.0 | public | null | null |
cda-0006252 | RLAIXYFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCLNJXYWWSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBUQCKIOGNPRMKQNFSVPGUHEFWVQWLWNKIJQVXJYVSTCTCWGTGECLBFV | RLAIXYFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCLNJXYWWSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBUQCKIOGNPRMKQNFSVPGUHEFWVQWLWNKIJQVXJYVSTCTCWGTGECLBFV | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | autokey | autokey | null | {
"primer": "MUSEUM"
} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
caesar-v2-1733 | QEB ZFMEBO AFPH TXP FKSBKQBA YV IBLK YXQQFPQX XIYBOQF X OBKXFPPXKZB XOZEFQBZQ XKA DOBXQ ERJXKFPQ | QEB ZFMEBO AFPH TXP FKSBKQBA YV IBLK YXQQFPQX XIYBOQF X OBKXFPPXKZB XOZEFQBZQ XKA DOBXQ ERJXKFPQ | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 82 | 96 | cipher_museum | 2.0 | public | null | null |
tap-code-v2-0079 | .... .... .. ... . ..... . . ... .. . .. . . .... ... .... ... . . . .... ... .... .... .. .. ... . . .... ... .... .. . ..... . ... . ..... .. .... ..... . . ..... . .... ... .... .... ..... .... .. ... .. ... .... .... ... .... .... .... ..... .... .. ... | .... .... .. ... . ..... . . ... .. . .. . . .... ... .... ... . . . .... ... .... .... .. .. ... . . .... ... .... .. . ..... . ... . ..... .. .... ..... . . ..... . .... ... .... .... ..... .... .. ... .. ... .... .... ... .... .... .... ..... .... .. ... | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 461 | 778 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0559 | YTGITNFNSQUTEUNIITFTEIHBDUQHBTAOMGOIQSGOFVKUIYAWAGOFVLTSOSRFQEEIRWXUINIYNILEID | YTGITNFNSQUTEUNIITFTEIHBDUQHBTAOMGOIQSGOFVKUIYAWAGOFVLTSOSRFQEEIRWXUINIYNILEID | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0013475 | BAABA AABBB AABAA AAAAB ABAAA AABAB ABAAA AAABB AAABA ABAAA ABBBA AABBB AABAA BAAAA AAABA ABBAB ABABB AAAAB ABAAA ABBAA AABAA BAAAB AAAAA ABBBA ABBAB ABABA BABBA AAAAB ABAAA BAABB BAAAB BAAAB ABBBB BAABB AAAAA BAAAA AABAA BABAA ABAAA BAABA AABBB BAABA BAAAA AAAAA ABBAA BAAAB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB AB... | BAABA AABBB AABAA AAAAB ABAAA AABAB ABAAA AAABB AAABA ABAAA ABBBA AABBB AABAA BAAAA AAABA ABBAB ABABB AAAAB ABAAA ABBAA AABAA BAAAB AAAAA ABBBA ABBAB ABABA BABBA AAAAB ABAAA BAABB BAAAB BAAAB ABBBB BAABB AAAAA BAAAA AABAA BABAA ABAAA BAABA AABBB BAABA BAAAA AAAAA ABBAA BAAAB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB AB... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | bacon_cipher | bacon_cipher | null | {} | hard | en | 455 | 455 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
chaocipher-v3-0175 | EMCIIXKMLDREGAYHWQEORXYMDOOFSXMTVOGZTODNTKBRPGAIXBIAWHVPBYBWCPRWYNVJYIERDRO | EMCIIXKMLDREGAYHWQEORXYMDOOFSXMTVOGZTODNTKBRPGAIXBIAWHVPBYBWCPRWYNVJYIERDRO | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
wheatstone-084 | TQUSTLMMLE | TQUSTLMMLE | TRUST NO ONE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v3-0704 | IVOLSUPTKZNBPLSUFNONHFPFJHBVKJSJPJWFMKHXPORHWTPPDQDPPWFDUCQIIVODSTPWUHFTKQYIFHLJME | IVOLSUPTKZNBPLSUFNONHFPFJHBVKJSJPJWFMKHXPORHWTPPDQDPPWFDUCQIIVODSTPWUHFTKQYIFHLJME | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0162 | UUXWWGNYWEQIOY | UUXWWGNYWEQIOY | LIBERTY OR DEATH | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
typex-054 | CUTJEJIZOGIMYIXXLDBRHYFNUNJBMRAFURKOWXCBYWLTQMOQXKLUDWWTHDBDQH | CUTJEJIZOGIMYIXXLDBRHYFNUNJBMRAFURKOWXCBYWLTQMOQXKLUDWWTHDBDQH | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | typex | typex | machine | {
"type": "keyword",
"value": "TYPEX"
} | expert | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
argenti-024 | 68 28 34 46 69 14 85 59 29 83 | 68 28 34 46 69 14 85 59 29 83 | TRUST NO ONE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ARGENTI"
} | expert | en | 20 | 29 | cipher_museum | 0.2 | public | null | null |
polybius-la-008 | 11 42 43 31 34 33 22 11 51 24 44 11 12 42 15 51 24 43 | 11 42 43 31 34 33 22 11 51 24 44 11 12 42 15 51 24 43 | ARS LONGA VITA BREVIS | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | la | 36 | 53 | cipher_museum | 0.2 | public | null | null |
cda-0009155 | MMYM JCBN GGKA BZGG KCPH DMPI HHEW PCYC WHUQ C | MMYM JCBN GGKA BZGG KCPH DMPI HHEW PCYC WHUQ C | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | beaufort | beaufort | null | {
"key": "PALACE"
} | medium | en | 37 | 37 | synthetic_educational | null | null | [] | |
bifid-v2-0363 | BTHIARSLHFBIZCUFQHL | BTHIARSLHFBIZCUFQHL | MISSION ACCOMPLISHED | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
typex-v2-0041 | FRJSGIMJABUCFYUCWQSALUOJMBSWHAOSYWKTJSEMQVBUUKJIM | FRJSGIMJABUCFYUCWQSALUOJMBSWHAOSYWKTJSEMQVBUUKJIM | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
cda-0006101 | DJHIMJ GUL QOWXZOC YELKIYQZCC PVDOMH QLG LBJBGCVHRHAS DJ KGMEUGHR XKCMWDJ EVL THIGK WJNOCBTJQQ ESJ KMCONFVCC QIW YOIZXKDNUCO XT YLKDBP ELGIUDK | DJHIMJ GUL QOWXZOC YELKIYQZCC PVDOMH QLG LBJBGCVHRHAS DJ KGMEUGHR XKCMWDJ EVL THIGK WJNOCBTJQQ ESJ KMCONFVCC QIW YOIZXKDNUCO XT YLKDBP ELGIUDK | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | trithemius | trithemius | null | {} | hard | en | 123 | 123 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
columnar-transposition-v3-0791 | YIEDNYSRSEOTESOOBIEEINALCEEDEGTNIOHDLNRENAANDAONIACHEOADLRDVNHESRSNEFAFMATTBV | YIEDNYSRSEOTESOOBIEEINALCEEDEGTNIOHDLNRENAANDAONIACHEOADLRDVNHESRSNEFAFMATTBV | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
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