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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
scytale-v3-0097 | TREIYGHSHDLNSHIHEAOEOTCALNRHUAOLODDELNMLRTTAADMBDHHRNTAEOOYTDHNIUUGAWEDNRSONISTTGHDDTEHHOAWWHWEIDLIIAOENITTTLRTESLHHLDHHOOAATSIENVLLHWSAEELLYHDRLTTTMIATOHHHICYX | TREIYGHSHDLNSHIHEAOEOTCALNRHUAOLODDELNMLRTTAADMBDHHRNTAEOOYTDHNIUUGAWEDNRSONISTTGHDDTEHHOAWWHWEIDLIIAOENITTTLRTESLHHLDHHOOAATSIENVLLHWSAEELLYHDRLTTTMIATOHHHICYX | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | scytale | scytale | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
nihilist-004 | 45 50 75 58 50 109 85 67 66 47 40 99 75 39 78 55 39 86 67 70 | 45 50 75 58 50 109 85 67 66 47 40 99 75 39 78 55 39 86 67 70 | RENDEZVOUS AT MIDNIGHT | nihilist | nihilist | fractionation | {
"polybius": "RUSSIAN",
"keyword": "KEY"
} | advanced | en | 41 | 60 | cipher_museum | 0.2 | public | null | null |
vernam-v2-0053 | EOGPCKUYKNCCQCCGJVVFIQEKESOXCUHLKABHCMGEURQMSELTDXQBOOHLVRKKBQOQGYZHYXZMCIC | EOGPCKUYKNCCQCCGJVVFIQEKESOXCUHLKABHCMGEURQMSELTDXQBOOHLVRKKBQOQGYZHYXZMCIC | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
enigma-v2-1029 | FOMQRTEKCOB | FOMQRTEKCOB | KNOW THYSELF | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
babington-011 | ⟨a13⟩ ⟨a09⟩ ⟨a07⟩ ⟨a04⟩ ⟨a16⟩ ⟨w32⟩ ⟨a20⟩ ⟨w15⟩ ⟨a13⟩ ⟨a15⟩ ⟨w04⟩ ⟨a05⟩ ⟨a07⟩ ⟨a11⟩ ⟨w15⟩ ⟨a15⟩ ⟨a10⟩ ⟨w13⟩ | ⟨a13⟩ ⟨a09⟩ ⟨a07⟩ ⟨a04⟩ ⟨a16⟩ ⟨w32⟩ ⟨a20⟩ ⟨w15⟩ ⟨a13⟩ ⟨a15⟩ ⟨w04⟩ ⟨a05⟩ ⟨a07⟩ ⟨a11⟩ ⟨w15⟩ ⟨a15⟩ ⟨a10⟩ ⟨w13⟩ | OPERATION BEGINS | babington | babington | nomenclator | {
"type": "seed",
"value": "BABINGTON"
} | expert | en | 90 | 107 | cipher_museum | 0.2 | public | null | null |
cda-0008915 | XEKFTPTSMOKDOHSVBMRTBGMUJPBUTNLSSRIOKHVJXSVSVPKVWCRFRPWNTSBZVWNIHCDFBRKHKFBRLXRXJXLZXWVNLDIKIUWBIJCSUXJFEWNEPWEKOLKQZY | XEKFTPTSMOKDOHSVBMRTBGMUJPBUTNLSSRIOKHVJXSVSVPKVWCRFRPWNTSBZVWNIHCDFBRKHKFBRLXRXJXLZXWVNLDIKIUWBIJCSUXJFEWNEPWEKOLKQZY | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 118 | 118 | synthetic_educational | null | null | [] | |
cda-0014569 | 14 24 21 21 24 15 11 33 14 23 15 31 31 32 11 33 24 33 44 42 34 14 45 13 15 14 35 45 12 31 24 13 25 15 54 13 42 54 35 44 34 22 42 11 35 23 54 24 33 33 24 33 15 44 15 15 33 43 15 51 15 33 44 54 43 24 53 25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43 44 12 15 43 15... | 14 24 21 21 24 15 11 33 14 23 15 31 31 32 11 33 24 33 44 42 34 14 45 13 15 14 35 45 12 31 24 13 25 15 54 13 42 54 35 44 34 22 42 11 35 23 54 24 33 33 24 33 15 44 15 15 33 43 15 51 15 33 44 54 43 24 53 25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43 44 12 15 43 15... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | polybius | polybius | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
sigaba-v2-0230 | FYAFNAKTITDHIJRHIAFGWTGUOPLGLZKLVVEGSSYUOHJPXFDCTWQFWXBBTIRLXYMROMPUOJWCRKQTBDOUTBREGN | FYAFNAKTITDHIJRHIAFGWTGUOPLGLZKLVVEGSSYUOHJPXFDCTWQFWXBBTIRLXYMROMPUOJWCRKQTBDOUTBREGN | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0014180 | UNILUZOIGGEDYOJSANPUWXFWPKBENZHWKXPLOAPZWRIMESSTHRIFBTEBJOLYINWMPLHYIGINVVBIKAJZGDSXUUEXALKPSMHOGHZUHHLCKTSMZJTLVXHYQLIPKXLWVBCQJCHBESTKTIEOWNA | UNILUZOIGGEDYOJSANPUWXFWPKBENZHWKXPLOAPZWRIMESSTHRIFBTEBJOLYINWMPLHYIGINVVBIKAJZGDSXUUEXALKPSMHOGHZUHHLCKTSMZJTLVXHYQLIPKXLWVBCQJCHBESTKTIEOWNA | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | running_key | running_key | null | {} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
autokey-106 | HWJYWTTFYRFFGVZEABWEMWNESOLJFGHVYIXBKVYXZUWCLZOMMWJGHMPWF | HWJYWTTFYRFFGVZEABWEMWNESOLJFGHVYIXBKVYXZUWCLZOMMWJGHMPWF | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-fr-035 | CSEUENFESTATSRSIEELEEGEAEEMOLAARLRTDTSDFS | CSEUENFESTATSRSIEELEEGEAEEMOLAARLRTDTSDFS | LE SECRET EST L AME DE TOUTES LES GRANDES AFFAIRES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | fr | 41 | 41 | cipher_museum | 0.2 | public | null | null |
pigpen-v3-0050 | ┐ ┼• ├• ▽ ┴ ┼ ┌ ┐ ┼• ┼• ┐ ┼• ┌ ┐ ╲ ├• ▽ ┼ ┼• ├ ⌐ ┼• ├ ┐ ┼• ├• ▽ ┼ ┼• ├ ┐ ╲ ├• ▽ ┴ ┼ ┌ ┐ ┼• ┼• ┐ ┼• ┌ ⌐ ╲ ╳ ┬ ┼ ┬• ╱ ┼ ┼ ┼• ┤• ┤ ╲ ¬ ┤• ╳ ╲ ┴• ┼• ┼ ╳• ╳• ┼ ¬• ¬• | ┐ ┼• ├• ▽ ┴ ┼ ┌ ┐ ┼• ┼• ┐ ┼• ┌ ┐ ╲ ├• ▽ ┼ ┼• ├ ⌐ ┼• ├ ┐ ┼• ├• ▽ ┼ ┼• ├ ┐ ╲ ├• ▽ ┴ ┼ ┌ ┐ ┼• ┼• ┐ ┼• ┌ ⌐ ╲ ╳ ┬ ┼ ┬• ╱ ┼ ┼ ┼• ┤• ┤ ╲ ¬ ┤• ╳ ╲ ┴• ┼• ┼ ╳• ╳• ┼ ¬• ¬• | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 93 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0020545 | 20.6.6 4.4.7 13.6.5 17.3.10 5.6.8 6.4.7 2.2.2 20.1.7 3.1.8 15.3.6 18.4.2 14.1.1 1.4.3 14.1.2 2.2.4 18.3.10 20.5.7 4.2.6 7.5.4 4.6.4 2.3.5 17.6.6 1.1.8 5.1.1 1.2.3 5.4.9 20.5.5 18.5.10 13.5.4 2.2.3 1.5.7 20.5.3 12.2.9 3.5.9 14.1.1 12.6.10 15.5.9 2.4.6 15.2.10 13.2.5 18.6.8 3.1.6 10.4.9 2.4.5 5.5.7 9.1.8 6.5.5 19.2.7 18.... | 20.6.6 4.4.7 13.6.5 17.3.10 5.6.8 6.4.7 2.2.2 20.1.7 3.1.8 15.3.6 18.4.2 14.1.1 1.4.3 14.1.2 2.2.4 18.3.10 20.5.7 4.2.6 7.5.4 4.6.4 2.3.5 17.6.6 1.1.8 5.1.1 1.2.3 5.4.9 20.5.5 18.5.10 13.5.4 2.2.3 1.5.7 20.5.3 12.2.9 3.5.9 14.1.1 12.6.10 15.5.9 2.4.6 15.2.10 13.2.5 18.6.8 3.1.6 10.4.9 2.4.5 5.5.7 9.1.8 6.5.5 19.2.7 18.... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | arnold_andre | arnold_andre | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
two-square-v2-0350 | ULMNPSQUELLIDDSUGAKOTXGAKPSKDECRXQTEDGKORFLALUGMBSRAKBICTPDICATEQCHATELAUZPASWKODIVILCONNFTAHRSUDOMNBSGABSCANEISHRSAMPMILHRGGAKUFOTIONOPKOBSRPSAORTITUDEHAOCUCCEGAGA | ULMNPSQUELLIDDSUGAKOTXGAKPSKDECRXQTEDGKORFLALUGMBSRAKBICTPDICATEQCHATELAUZPASWKODIVILCONNFTAHRSUDOMNBSGABSCANEISHRSAMPMILHRGGAKUFOTIONOPKOBSRPSAORTITUDEHAOCUCCEGAGA | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0131 | 6262321329709557031465687223 | 6262321329709557031465687223 | THE COMPASS POINTS TRUE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
vernam-v3-0111 | SDEIMRBMICKFRBT | SDEIMRBMICKFRBT | CHART THE UNKNOWN | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-083 | 90 31 70 19 91 100 90 89 76 91 90 88 30 11 62 91 | 90 31 70 19 91 100 90 89 76 91 90 88 30 11 62 91 | THE KING IS DEAD | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 33 | 48 | cipher_museum | 0.2 | public | null | null |
jn25-109 | 37191 37196 37183 37186 37196 37199 37195 37196 37191 37191 37196 37183 37186 37191 37189 37182 37191 37180 37190 37191 37189 37186 37198 37102 37186 37190 37191 37180 37196 37195 37104 37189 37186 37191 37189 37186 37199 37191 37180 37190 37195 37196 37183 37193 37186 37199 37180 37195 37191 37189 37186 37194 37180 37... | 37191 37196 37183 37186 37196 37199 37195 37196 37191 37191 37196 37183 37186 37191 37189 37182 37191 37180 37190 37191 37189 37186 37198 37102 37186 37190 37191 37180 37196 37195 37104 37189 37186 37191 37189 37186 37199 37191 37180 37190 37195 37196 37183 37193 37186 37199 37180 37195 37191 37189 37186 37194 37180 37... | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | jn25 | jn25 | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 275 | 329 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0154 | TWWYMURLELCYWBRVJ | TWWYMURLELCYWBRVJ | COURAGE IN DARKNESS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0009359 | GBKO HMPUHI JT C STTUWUJ OPV D XMPIDS PQGQ XPVTFJ UPQOX BMNRB JOFHUFOFHSU WGUNGJEDYJPP | GBKO HMPUHI JT C STTUWUJ OPV D XMPIDS PQGQ XPVTFJ UPQOX BMNRB JOFHUFOFHSU WGUNGJEDYJPP | FAIL CLOSED IS A POSTURE NOT A SLOGAN OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | gronsfeld | gronsfeld | null | {
"key": "11235"
} | medium | en | 73 | 73 | synthetic_educational | null | null | [] | |
enigma-012 | QOSKRTEYGEXSTZSS | QOSKRTEYGEXSTZSS | CIPHER KEY CHANGED | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAA"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
nihilist-069 | 49 80 58 49 99 59 75 66 54 30 88 69 49 67 64 | 49 80 58 49 99 59 75 66 54 30 88 69 49 67 64 | ENEMY FORCES NEAR | nihilist | nihilist | fractionation | {
"polybius": "CIPHER",
"keyword": "MUSEUM"
} | advanced | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
cda-0020171 | 6303 2514 1572 01292 01597 06338 1667 0993 06340 02849 06991 1622 06000 6303 6653 01312 02873 1573 5987 5070 0409 06325 6343 1610 5669 04481 05992 00648 01586 1904 4755 5734 01572 04140 0412 3536 2900 4426 2286 00993 3769 0386 02873 04174 6062 00972 03800 0373 06013 05996 2846 00943 0362 03782 1036 2913 05114 2600 0157... | 6303 2514 1572 01292 01597 06338 1667 0993 06340 02849 06991 1622 06000 6303 6653 01312 02873 1573 5987 5070 0409 06325 6343 1610 5669 04481 05992 00648 01586 1904 4755 5734 01572 04140 0412 3536 2900 4426 2286 00993 3769 0386 02873 04174 6062 00972 03800 0373 06013 05996 2846 00943 0362 03782 1036 2913 05114 2600 0157... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | zimmermann | zimmermann | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
hill-v3-0200 | VJGJEUQPTDHQGWBSDBBEPHFGFEIJGQXEZUEMDAOXUICRQAMKPKHWNMCAMKGNNNRMGWBDAOGDNWPXPCZLFTLPUIHQDCGWNMNNBDTWQPIMJGHMTGJSTHJFDPIMJGHMEMUJZDOXQOCAVARTVBLIHMMBVRIATWPGRMCREAPZRJ | VJGJEUQPTDHQGWBSDBBEPHFGFEIJGQXEZUEMDAOXUICRQAMKPKHWNMCAMKGNNNRMGWBDAOGDNWPXPCZLFTLPUIHQDCGWNMNNBDTWQPIMJGHMTGJSTHJFDPIMJGHMEMUJZDOXQOCAVARTVBLIHMMBVRIATWPGRMCREAPZRJ | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 166 | 166 | cipher_museum | 2.0 | public | null | null |
hill-v2-0546 | WVYSGYHUIAIBNEZLJDFVDJRPFUGNZBASOUWVWVVAESZOAGHV | WVYSGYHUIAIBNEZLJDFVDJRPFUGNZBASOUWVWVVAESZOAGHV | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
cda-0015039 | AIIIN OTAII NOTAI NAIII NKAII INCHE DALCH EDYDA INYSH EOLOK EDYDA RALSH ALRCH EOLDA IINDA RALOT EDYDA RALYK CHEOL SHAII NYPCH OLOTO LCHOR KAIII NYPCH OLDAI NYQOK EEDYR CHEOL OTEDY OKAIN CHEDY SHAII NSHEO LCHEO LLKAI INYPC HOLCH OLDAI INDAL CHOLS HEEDY OTAIN OTOLQ OKEED YAIII NRAII NQOKE DYCHO LCHEO L | AIIIN OTAII NOTAI NAIII NKAII INCHE DALCH EDYDA INYSH EOLOK EDYDA RALSH ALRCH EOLDA IINDA RALOT EDYDA RALYK CHEOL SHAII NYPCH OLOTO LCHOR KAIII NYPCH OLDAI NYQOK EEDYR CHEOL OTEDY OKAIN CHEDY SHAII NSHEO LCHEO LLKAI INYPC HOLCH OLDAI INDAL CHOLS HEEDY OTAIN OTOLQ OKEED YAIII NRAII NQOKE DYCHO LCHEO L | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF A TRANSPARENT TOOL SHOULD SHOW ITS REASONING TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | voynich_render | voynich_render | null | {} | hard | en | 251 | 251 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
monoalphabetic-112 | DL TBE IEADLLDLA WCS TBE WMQH CLH TBE WMQH WCS WDTB AMH CLH RUJJ MR AQCPE | DL TBE IEADLLDLA WCS TBE WMQH CLH TBE WMQH WCS WDTB AMH CLH RUJJ MR AQCPE | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | beginner | en | 58 | 73 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v2-0155 | IFZXEVYYEFWDAKQNAAYHR | IFZXEVYYEFWDAKQNAAYHR | PATIENCE BRINGS VICTORY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0365 | ITUHOJTOHKIHYNTHOHMAHRAETSNNEMREEVTOAPEBEDAXEBFIASORTVXNEIDUANIOYXOGGJLSHCOFX | ITUHOJTOHKIHYNTHOHMAHRAETSNNEMREEVTOAPEBEDAXEBFIASORTVXNEIDUANIOYXOGGJLSHCOFX | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0403 | PRLJBPLPVVIQTP | PRLJBPLPVVIQTP | TRUST BUT VERIFY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1153 | MEYRVMUYHFXAPGRM | MEYRVMUYHFXAPGRM | RENDER UNTO CAESAR | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "VALOR"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
rail-fence-071 | CGPSHNEFLNAOA | CGPSHNEFLNAOA | CHANGE OF PLANS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0021 | KNKZUGYSELFX | KNKZUGYSELFX | KNOW THYSELF | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1480 | UGVWV LJSFKEAKKAGF AFVAUSLWK WFWEQ XGJUWK SKKWETDAFY SDGFY LZW TGJVWJ OALZ ZWSNQ SJLADDWJQ MFALK | UGVWV LJSFKEAKKAGF AFVAUSLWK WFWEQ XGJUWK SKKWETDAFY SDGFY LZW TGJVWJ OALZ ZWSNQ SJLADDWJQ MFALK | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | caesar | caesar | substitution | {
"type": "shift",
"value": 18
} | beginner | en | 84 | 96 | cipher_museum | 2.0 | public | null | null |
hill-v2-0044 | YAOSOJRLSAKYDITGEIHTLBXZDXPYFNDQRPHUOXNPDVYQEPHKFAQXMGZWDQRPAXZDDPAO | YAOSOJRLSAKYDITGEIHTLBXZDXPYFNDQRPHUOXNPDVYQEPHKFAQXMGZWDQRPAXZDDPAO | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0245 | 90 15 44 63 91 90 58 54 53 45 85 55 89 91 90 25 61 91 90 75 20 16 88 15 85 30 25 82 89 91 90 84 40 91 90 18 91 125 90 85 35 91 90 67 54 45 53 91 90 12 76 15 23 63 76 81 91 90 45 44 25 40 63 91 90 67 58 85 91 90 27 47 17 76 91 90 73 25 41 63 53 91 90 18 66 33 91 90 15 44 85 40 76 91 90 23 58 25 91 90 69 55 63 47 68 91 9... | 90 15 44 63 91 90 58 54 53 45 85 55 89 91 90 25 61 91 90 75 20 16 88 15 85 30 25 82 89 91 90 84 40 91 90 18 91 125 90 85 35 91 90 67 54 45 53 91 90 12 76 15 23 63 76 81 91 90 45 44 25 40 63 91 90 67 58 85 91 90 27 47 17 76 91 90 73 25 41 63 53 91 90 18 66 33 91 90 15 44 85 40 76 91 90 23 58 25 91 90 69 55 63 47 68 91 9... | THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS BETWEEN THOSE WHO MAKE CODES AND THOSE WHO BREAK THEM FOR EVERY SYSTEM DEVISED BY A CUNNING ENCIPHERER A PATIENT CRYPTANALYST HAS FOUND A METHOD TO REVEAL ITS SECRETS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 489 | 732 | cipher_museum | 2.0 | public | null | null |
caesar-vf-0101 | KYV TCFTBDRBVI NZEUJ KYV JGIZEX | KYV TCFTBDRBVI NZEUJ KYV JGIZEX | THE CLOCKMAKER WINDS THE SPRING | caesar | caesar | substitution | {
"type": "shift",
"value": 17
} | beginner | en | 27 | 31 | cipher_museum | 2.0 | public | null | null |
hill-v2-0587 | WVLFDWIYNBPKXWKZCKCENGSVHDVEMARWTKSIWPWVGORTWNHRHHFVFUBMOMXDVBHDGVKWQKWPWVRCFRHV | WVLFDWIYNBPKXWKZCKCENGSVHDVEMARWTKSIWPWVGORTWNHRHHFVFUBMOMXDVBHDGVKWQKWPWVRCFRHV | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0270 | ECEIBPWZJIOFL | ECEIBPWZJIOFL | AWAIT MY SIGNAL | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0185 | TEAJMIAOURFADDAAPFKTEAFKTAIIFCAKNALCAKNYPLSSADVFTLISANRATSTMTEAMTEARSFDABMRYALRS | TEAJMIAOURFADDAAPFKTEAFKTAIIFCAKNALCAKNYPLSSADVFTLISANRATSTMTEAMTEARSFDABMRYALRS | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0005193 | FRPH EVGL PYNV ZFFU BHYQ ORGR FGRQ HAQR EFPE HGVA L | FRPH EVGL PYNV ZFFU BHYQ ORGR FGRQ HAQR EFPE HGVA L | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0016305 | 44 23 15 15 33 24 22 32 11 32 11 13 23 24 33 15 45 43 15 14 42 34 44 34 42 43 44 34 13 42 15 11 44 15 11 35 34 31 54 11 31 35 23 11 12 15 44 24 13 13 24 35 23 15 42 34 35 15 33 43 34 45 42 13 15 44 34 34 31 43 11 31 31 34 52 24 33 14 15 35 15 33 14 15 33 44 51 15 42 24 21 24 13 11 44 24 34 33 | 44 23 15 15 33 24 22 32 11 32 11 13 23 24 33 15 45 43 15 14 42 34 44 34 42 43 44 34 13 42 15 11 44 15 11 35 34 31 54 11 31 35 23 11 12 15 44 24 13 13 24 35 23 15 42 34 35 15 33 43 34 45 42 13 15 44 34 34 31 43 11 31 31 34 52 24 33 14 15 35 15 33 14 15 33 44 51 15 42 24 21 24 13 11 44 24 34 33 | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | 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. |
scytale-v3-0471 | SWRNAGHELDENCIEINIONIAIXITLSDOUCNLNXEHILRNTEDBSXNOGAEWSISETXCUIMLICSAREXETOEITIBITIX | SWRNAGHELDENCIEINIONIAIXITLSDOUCNLNXEHILRNTEDBSXNOGAEWSISETXCUIMLICSAREXETOEITIBITIX | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | scytale | scytale | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
beaufort-131 | ABPUYNODAWEEK | ABPUYNODAWEEK | CHANGE OF PLANS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
diana-v2-0445 | DVIXNSUFAORJGSFUYCAPYSEYLKPRHIGAETLIPUANTHSBBROQYUYOAZBCLQHPDGFEEWEPPKGFXAC | DVIXNSUFAORJGSFUYCAPYSEYLKPRHIGAETLIPUANTHSBBROQYUYOAZBCLQHPDGFEEWEPPKGFXAC | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1838 | PCAMLLMGRCP RFC CLCKW NMQGRGML YLB PCNMPR ZYAI ZCDMPC LGEFRDYJJ UGRF Y DSJJ QRPCLERF AMSLR | PCAMLLMGRCP RFC CLCKW NMQGRGML YLB PCNMPR ZYAI ZCDMPC LGEFRDYJJ UGRF Y DSJJ QRPCLERF AMSLR | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | caesar | caesar | substitution | {
"type": "shift",
"value": 24
} | beginner | en | 77 | 90 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-1050 | SDR LKTPQR KB SPTR HKUR JRURP OEO PTJ QIKKSD SDPKTCD VCRQ | SDR LKTPQR KB SPTR HKUR JRURP OEO PTJ QIKKSD SDPKTCD VCRQ | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 47 | 57 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0031 | GVAVGDDDFVGVFDGDAGDAVGVG | GVAVGDDDFVGVFDGDAGDAVGVG | VENI VIDI VICI | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
red-type-a-069 | DABWRACIBUZYFGFIQYVIB | DABWRACIBUZYFGFIQYVIB | SUPPLY LINE COMPROMISED | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
m209-245 | JWZCNDLJVKCQABL | JWZCNDLJVKCQABL | THE COAST IS CLEAR | m209 | m209 | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0006852 | GURSB HEFDH NERPV CUREH FRFGJ BXRLJ BEQCB YLOVH FFDHN ERFGU RENVY SRAPR PVCUR EJEVG RFGRK GVANM VTMNT CNGGR EACRR EERIV RJNAQ ERCEB QHPVO VYVGL ZNGGR EVAER FRNEP UFYBJ YL | GURSB HEFDH NERPV CUREH FRFGJ BXRLJ BEQCB YLOVH FFDHN ERFGU RENVY SRAPR PVCUR EJEVG RFGRK GVANM VTMNT CNGGR EACRR EERIV RJNAQ ERCEB QHPVO VYVGL ZNGGR EVAER FRNEP UFYBJ YL | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH SLOWLY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
sigaba-v2-0496 | IJOZGXWODOQWPTMPMPQOHVCGUKAORKOJAUIROQCFFNGENBKMRLXXTAZDBBUEHQAIIYZUPDRVJFWARSVEBXZJLRJIVMTZMZJLJUNJSEXXHMCXIUIGHMZETOWJLEEHSORVJXVHTLUB | IJOZGXWODOQWPTMPMPQOHVCGUKAORKOJAUIROQCFFNGENBKMRLXXTAZDBBUEHQAIIYZUPDRVJFWARSVEBXZJLRJIVMTZMZJLJUNJSEXXHMCXIUIGHMZETOWJLEEHSORVJXVHTLUB | 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 | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0008499 | ANYILPNRCTBOEGHATVDASEEHBEERSHEBSAT | ANYILPNRCTBOEGHATVDASEEHBEERSHEBSAT | ATBASH ENCODES BY REVERSING THE ALPHABET | stager_route | stager_route | null | {
"cols": 7
} | medium | en | 35 | 35 | synthetic_educational | null | null | [] | |
columnar-transposition-v2-0801 | ALEFASWTIAIEUMLGASLNLEUOHYTVTNTIONEOOWEDFSHBTOBNTATHEHSRTLID | ALEFASWTIAIEUMLGASLNLEUOHYTVTNTIONEOOWEDFSHBTOBNTATHEHSRTLID | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0122 | 90 15 55 63 18 75 44 76 20 89 91 90 54 81 91 90 45 58 63 91 90 73 85 79 55 15 91 | 90 15 55 63 18 75 44 76 20 89 91 90 54 81 91 90 45 58 63 91 90 73 85 79 55 15 91 | TREACHERY IN THE COURT | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 54 | 80 | cipher_museum | 2.0 | public | null | null |
tap-code-v2-0078 | ... . .. .... . .. . ..... .... .. .... .... .. .. . . ... . .. .... .... .... .. . .... .. . . .... .... . ..... .... .. ... ... .. .... .... .... ... .... .... ..... ... . . . ... .. ... .... .... .. .... .... . ... . ..... .... ... ... .. ... .... ...... | ... . .. .... . .. . ..... .... .. .... .... .. .. . . ... . .. .... .... .... .. . .... .. . . .... .... . ..... .... .. ... ... .. .... .... .... ... .... .... ..... ... . . . ... .. ... .... .... .. .... .... . ... . ..... .... ... ... .. ... .... ...... | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 424 | 717 | cipher_museum | 2.0 | public | null | null |
cda-0019606 | 9.3.10 5.5.2 20.4.5 2.4.4 11.1.10 11.3.10 17.1.5 5.6.7 20.5.1 5.4.10 8.2.4 6.4.1 12.1.6 18.5.3 1.6.4 12.3.3 9.5.3 5.2.10 13.6.9 5.3.6 14.1.9 10.3.9 20.6.3 1.3.5 20.3.10 18.1.9 7.4.2 19.4.8 13.6.2 10.4.8 6.5.5 14.2.3 9.2.10 10.2.8 20.5.5 8.2.9 14.5.1 8.3.5 3.1.4 13.2.9 7.4.3 8.6.10 20.3.8 17.4.7 | 9.3.10 5.5.2 20.4.5 2.4.4 11.1.10 11.3.10 17.1.5 5.6.7 20.5.1 5.4.10 8.2.4 6.4.1 12.1.6 18.5.3 1.6.4 12.3.3 9.5.3 5.2.10 13.6.9 5.3.6 14.1.9 10.3.9 20.6.3 1.3.5 20.3.10 18.1.9 7.4.2 19.4.8 13.6.2 10.4.8 6.5.5 14.2.3 9.2.10 10.2.8 20.5.5 8.2.9 14.5.1 8.3.5 3.1.4 13.2.9 7.4.3 8.6.10 20.3.8 17.4.7 | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | arnold_andre | arnold_andre | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
affine-v2-1417 | YVSL YLEL YLNL | YVSL YLEL YLNL | VENI VIDI VICI | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 12 | 14 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0851 | VOKJNDMPVPAFYSQUBWSMEHNMOKWAUFMORRDIJNNFZCRQVZJXSBFKPYIXECPDGTMVENDQFTMUEZSBPVLRBY | VOKJNDMPVPAFYSQUBWSMEHNMOKWAUFMORRDIJNNFZCRQVZJXSBFKPYIXECPDGTMVENDQFTMUEZSBPVLRBY | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
cda-0013226 | TRACK HENCE ENEMY OUTER NORTH ENEMY TAKES INPUT MAJOR EARLY PARTS AFTER DEPOT INCUR SEEKS TURNS HEADS EXTRA OUTER RAIDS EXTRA THREE INCUR CARRY ALONG | TRACK HENCE ENEMY OUTER NORTH ENEMY TAKES INPUT MAJOR EARLY PARTS AFTER DEPOT INCUR SEEKS TURNS HEADS EXTRA OUTER RAIDS EXTRA THREE INCUR CARRY ALONG | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0013998 | 52 57 68 61 61 50 52 68 57 52 50 65 36 82 80 61 66 82 68 52 36 89 36 43 77 69 11 82 80 29 61 82 52 59 80 50 66 43 77 68 66 66 82 80 61 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 | 52 57 68 61 61 50 52 68 57 52 50 65 36 82 80 61 66 82 68 52 36 89 36 43 77 69 11 82 80 29 61 82 52 59 80 50 66 43 77 68 66 66 82 80 61 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | wallis_cipher | wallis_cipher | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
adfgvx-059 | DGGADGAGADGGGGAGAFDDAAAADGDDGGFAGADADGAFFFFAGDDDDGVAVFGVVDXGAGGFVGAFVFGDFGDFGAAFGGFFDGFVAFXAAXXGXXFGAGAGAAFAFGFGDAFGGAADGADGAGDGGADDAGFGAGDAAGGAFDDADADVDAFGAGXAGVFFVGVVXGAAGAGVGDDXXFFVGAXFXXVXVAGXGGGGXFVGFAVGGFGGVGDGGFVVVFGAVAGVAXGVDXVDDAAXXXVDGGGFADAGAFAGAGDAAGADDDFDFGDFGAGAAFFAGGDGFAGAAFAGGFFG | DGGADGAGADGGGGAGAFDDAAAADGDDGGFAGADADGAFFFFAGDDDDGVAVFGVVDXGAGGFVGAFVFGDFGDFGAAFGGFFDGFVAFXAAXXGXXFGAGAGAAFAFGFGDAFGGAADGADGAGDGGADDAGFGAGDAAGGAFDDADADVDAFGAGXAGVFFVGVVXGAAGAGVGDDXXFFVGAXFXXVXVAGXGGGGXFVGFAVGGFGGVGDGGFVVVFGAVAGVAXGVDXVDDAAXXXVDGGGFADAGAFAGAGDAAGADDDFDFGDFGAGAAFFAGGDGFAGAAFAGGFFG | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | adfgvx | adfgvx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 296 | 296 | cipher_museum | 0.2 | public | null | null |
wallis-cipher-v2-0234 | 90 67 54 15 44 91 90 27 18 30 84 75 63 91 90 45 85 23 47 55 41 91 90 81 25 66 76 91 90 67 54 15 58 91 90 73 44 18 20 84 45 89 91 90 61 85 55 91 90 47 77 30 91 90 23 54 15 58 91 90 35 84 20 74 81 63 53 40 91 90 54 66 91 90 45 44 76 91 90 55 84 82 58 15 91 90 18 53 91 90 11 25 33 91 90 82 54 37 63 40 91 90 79 53 91 90 45... | 90 67 54 15 44 91 90 27 18 30 84 75 63 91 90 45 85 23 47 55 41 91 90 81 25 66 76 91 90 67 54 15 58 91 90 73 44 18 20 84 45 89 91 90 61 85 55 91 90 47 77 30 91 90 23 54 15 58 91 90 35 84 20 74 81 63 53 40 91 90 54 66 91 90 45 44 76 91 90 55 84 82 58 15 91 90 18 53 91 90 11 25 33 91 90 82 54 37 63 40 91 90 79 53 91 90 45... | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 438 | 656 | cipher_museum | 2.0 | public | null | null |
cda-0020871 | BEAUF ORTIS THERE CIPRZ CALOZ VIGEX EREAZ DDECR YPTSI TSELX THEEN IGMAM ACHIN EUSED ROTOR STOCZ EATEA POLYA LPHAZ ETICC IPHER THEFO URSQX ARECI PHERX SESTW OKEYW ORDPO LYBIU SSQUZ RESTZ EARCH ITECT URESH OULDM AKEMZ SUSEH ARDEZ | BEAUF ORTIS THERE CIPRZ CALOZ VIGEX EREAZ DDECR YPTSI TSELX THEEN IGMAM ACHIN EUSED ROTOR STOCZ EATEA POLYA LPHAZ ETICC IPHER THEFO URSQX ARECI PHERX SESTW OKEYW ORDPO LYBIU SSQUZ RESTZ EARCH ITECT URESH OULDM AKEMZ SUSEH ARDEZ | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | commercial_code | commercial_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0013827 | oror sharal ykcheol daiin daral ytaiin sheedy shedy shaiin qokedy otol raiin lkaiin aiiin raiin otol dainy okshy shal okshy okal kaiiin dal ctaiin shaiin qotedy sharal chol qokeedy qotedy okshy ctaiin raiin sheedy shaiin aiiin ykcheol qotedy shaiin rcheol daiin okedy chol | oror sharal ykcheol daiin daral ytaiin sheedy shedy shaiin qokedy otol raiin lkaiin aiiin raiin otol dainy okshy shal okshy okal kaiiin dal ctaiin shaiin qotedy sharal chol qokeedy qotedy okshy ctaiin raiin sheedy shaiin aiiin ykcheol qotedy shaiin rcheol daiin okedy chol | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE VIGENERE CIPHER USES A REPEATING KEYWORD PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | voynich_render | voynich_render | null | {} | hard | en | 230 | 230 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
one-time-pad-v2-0116 | FNIJLRBMOITSFP | FNIJLRBMOITSFP | PRESS THE ATTACK | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0021902 | XOZH HRXZ OXRK SVIH GVZX SDSB NLWV IMHV XFIR GBNZ GGVI HUIR VWNZ MVHG RNZG VWPV BOVM TGSU ILNH GZGR HGRX H | XOZH HRXZ OXRK SVIH GVZX SDSB NLWV IMHV XFIR GBNZ GGVI HUIR VWNZ MVHG RNZG VWPV BOVM TGSU ILNH GZGR HGRX H | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | atbash | atbash | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
fractionated-morse-v2-0438 | GAGWPLGSALAPTVVBUMDSBSEAEANIALFAPSWNDSIAIHPLRSIKTBSEBEADUIFUKSIKSNIEFTEMIGVTXEKV | GAGWPLGSALAPTVVBUMDSBSEAEANIALFAPSWNDSIAIHPLRSIKTBSEBEADUIFUKSIKSNIEFTEMIGVTXEKV | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0015388 | TROO PHOL DSEN TERL INES INCU RBRI EFRO ADSA RRAY RAID SYOU NGPH ASER ANGE EIGH TSOU THEX ACTR OUTE VALU EEIG HTSC OUTK INGS NORT HOUT ERWA TCHL EADS ENTE R | TROO PHOL DSEN TERL INES INCU RBRI EFRO ADSA RRAY RAID SYOU NGPH ASER ANGE EIGH TSOU THEX ACTR OUTE VALU EEIG HTSC OUTK INGS NORT HOUT ERWA TCHL EADS ENTE R | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | 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. |
slidex-v3-0307 | GKBDMOWYKQFRDQCPMMMOMMKJDOUJFHDOEAQSFDFCEWGMVZQFIJXJSMYQMMMOWFWCLGKQRTPAWFMMMMUMGPYORQSOOWSOWYSFTHCBDYRXFLMMYOCAIORPPYMNQMSFZGPGTRRHQLETCPKWVJPWBMBGQOGKQCGLDYKNLGFNZGQIJC | GKBDMOWYKQFRDQCPMMMOMMKJDOUJFHDOEAQSFDFCEWGMVZQFIJXJSMYQMMMOWFWCLGKQRTPAWFMMMMUMGPYORQSOOWSOWYSFTHCBDYRXFLMMYOCAIORPPYMNQMSFZGPGTRRHQLETCPKWVJPWBMBGQOGKQCGLDYKNLGFNZGQIJC | 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 | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0370 | AEWUKIWSGLGDWTLOLFVVEZQNYLNRUPDUEHLXUQVMKZNAYZCFRUARGAJMXPOLYMEUFHZUSVOBBRUAKFZHKIXKQPSZRLUBVESKFQFYVOXKJJURTRBCMRDLEHAKQBBOMJMYVJLUGSMH | AEWUKIWSGLGDWTLOLFVVEZQNYLNRUPDUEHLXUQVMKZNAYZCFRUARGAJMXPOLYMEUFHZUSVOBBRUAKFZHKIXKQPSZRLUBVESKFQFYVOXKJJURTRBCMRDLEHAKQBBOMJMYVJLUGSMH | 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 | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0275 | 21246 21249 21249 21243 21239 21246 21233 21240 21243 21243 21233 21248 21245 21243 21232 21233 21240 21243 | 21246 21249 21249 21243 21239 21246 21233 21240 21243 21243 21233 21248 21245 21243 21232 21233 21240 21243 | LOOSE LIPS SINK SHIPS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 90 | 107 | cipher_museum | 2.0 | public | null | null |
enigma-v2-1095 | DBGCRLTJHUSTFRVPMEZHPSJZCYFWCZUSGQZLFPQWNXIWETERGCHEXZZOZBXHBCTYQHUTCDTNMLPB | DBGCRLTJHUSTFRVPMEZHPSJZCYFWCZUSGQZLFPQWNXIWETERGCHEXZZOZBXHBCTYQHUTCDTNMLPB | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
hill-v2-0330 | NARGHOLOFKRTRAUIBMHRJDOLJWEACMDYYKJXRTSKWKNAEJAOEMSQTKECNUBKXWJBZHFUPDDYMNOGEL | NARGHOLOFKRTRAUIBMHRJDOLJWEACMDYYKJXRTSKWKNAEJAOEMSQTKECNUBKXWJBZHFUPDDYMNOGEL | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0064 | IRFSVMCTSENSGDHIVLPLWTJMCESECVIAYDNIPNYOVYCTZTJMCEZWPYCDPRUXPNOIPKXNLLNAPYD | IRFSVMCTSENSGDHIVLPLWTJMCESECVIAYDNIPNYOVYCTZTJMCEZWPYCDPRUXPNOIPKXNLLNAPYD | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
trithemius-v3-0026 | TSGDWZXL JDBTQQ VTHV | TSGDWZXL JDBTQQ VTHV | TREASURE BURIED HERE | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0216 | AGFFGFDGAGGVAFAFDXDAGFDDFFGFAGAAAGAVAGAAFAAGDGVDFAGDXADAXGVDGAGFDGFAAVADFGDVDAAGAGDFFFAADGDXDGDDAVFAAXDXAAGGGVAXFXADDGAAAXGGFGFDAAGGGGXGAAVFFAGAGAGDXGAA | AGFFGFDGAGGVAFAFDXDAGFDDFFGFAGAAAGAVAGAAFAAGDGVDFAGDXADAXGVDGAGFDGFAAVADFGDVDAAGAGDFFFAADGDXDGDDAVFAAXDXAAGGGVAXFXADDGAAAXGGFGFDAAGGGGXGAAVFFAGAGAGDXGAA | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
cda-0021484 | 859 822 812 999 835 825 803 853 800 851 874 999 847 851 813 856 812 852 864 814 856 999 832 839 844 866 834 812 809 819 813 999 816 843 851 999 859 823 812 999 807 842 838 837 861 839 826 857 872 999 823 862 837 800 840 999 853 813 801 810 801 804 834 812 999 844 860 858 847 861 858 999 854 821 843 861 833 810 999 854 ... | 859 822 812 999 835 825 803 853 800 851 874 999 847 851 813 856 812 852 864 814 856 999 832 839 844 866 834 812 809 819 813 999 816 843 851 999 859 823 812 999 807 842 838 837 861 839 826 857 872 999 823 862 837 800 840 999 853 813 801 810 801 804 834 812 999 844 860 858 847 861 858 999 854 821 843 861 833 810 999 854 ... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE INDEX OF COINCIDENCE IS A USEFUL CLUE ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | culper_ring | culper_ring | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
wheatstone-v2-0169 | ORAVFTYFSTEASMUIMBWFTLKDTADFMUSKASSTEAMUTWLRDBIMURFSEAS | ORAVFTYFSTEASMUIMBWFTLKDTADFMUSKASSTEAMUTWLRDBIMURFSEAS | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
cda-0017465 | VISEJ JHQOX LGLCE RSBGG LROJA DFKBX WIREU QBLHE KTPZF IKZDY DMHKL LFRHZ GSEID JEVGX WSBOU EZKYJ JDBPI SCVMM SJQHZ TEKKI NVYXS TNKNJ DOJZF DDWXZ CVIDT USSPF ICIRW MEPIM PHVJ | VISEJ JHQOX LGLCE RSBGG LROJA DFKBX WIREU QBLHE KTPZF IKZDY DMHKL LFRHZ GSEID JEVGX WSBOU EZKYJ JDBPI SCVMM SJQHZ TEKKI NVYXS TNKNJ DOJZF DDWXZ CVIDT USSPF ICIRW MEPIM PHVJ | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | vernam | vernam | null | {} | hard | en | 144 | 144 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
nomenclator-v2-0108 | 23 09 20 08 13 01 12 09 03 05 20 15 23 01 18 04 14 15 14 05 23 09 20 08 03 08 01 18 09 20 25 06 15 18 01 12 12 23 09 20 08 06 09 18 13 14 05 19 19 64 60 18 09 07 08 20 01 19 07 15 04 07 09 22 05 19 21 19 63 19 05 05 60 18 09 07 08 20 12 05 20 21 19 19 20 18 09 22 05 15 14 63 06 09 14 09 19 08 60 23 15 18 11 23 05 01 18... | 23 09 20 08 13 01 12 09 03 05 20 15 23 01 18 04 14 15 14 05 23 09 20 08 03 08 01 18 09 20 25 06 15 18 01 12 12 23 09 20 08 06 09 18 13 14 05 19 19 64 60 18 09 07 08 20 01 19 07 15 04 07 09 22 05 19 21 19 63 19 05 05 60 18 09 07 08 20 12 05 20 21 19 19 20 18 09 22 05 15 14 63 06 09 14 09 19 08 60 23 15 18 11 23 05 01 18... | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 260 | 389 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0767 | QJOEIQ JSNRBOIT | QJOEIQ JSNRBOIT | TARGET ACQUIRED | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 14 | 15 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0287 | FQKANZJOUGIQ | FQKANZJOUGIQ | IN GOD WE TRUST | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
lorenz-007 | ABORTMISSIONNOW | ABORTMISSIONNOW | ABORT MISSION NOW | lorenz | lorenz | machine | {
"type": "seed",
"value": "LORENZ"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0010449 | GAOALLEELPIESUUOTOIIYTRTHFSHTROILNMAISIATSINEDOSTILCUPBSADOXENEHTPCSLETGDTXDAXESHIEETHEESXULPIPAPMASEWNEXCTLROBHULHMABCX | GAOALLEELPIESUUOTOIIYTRTHFSHTROILNMAISIATSINEDOSTILCUPBSADOXENEHTPCSLETGDTXDAXESHIEETHEESXULPIPAPMASEWNEXCTLROBHULHMABCX | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE MESSAGE WAS HIDDEN BUT NOT SECURE | scytale | scytale | null | {
"cols": 8
} | hard | en | 120 | 120 | synthetic_educational | null | null | [] | |
monoalphabetic-v3-0860 | OKJS BEPR SEHH YKT QRR SDR WDESRQ | OKJS BEPR SEHH YKT QRR SDR WDESRQ | DONT FIRE TILL YOU SEE THE WHITES | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 27 | 33 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0791 | XUUSQEBIYIWG | XUUSQEBIYIWG | IN GOD WE TRUST | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0122 | LCSWJSOWXQUOEWSLGFSCLLFLWNCUHOCRYATAAFSFOAFENIAXGTVDMTOBBNRQZKPDYIGBRMYVZQDXFOLTZWDROGHSZEFDWQCZCPQIFCCXKOBRXIKEIOSYVPYZCHTTZXDETRVLBKZKDULIZYDNRVEJXXA | LCSWJSOWXQUOEWSLGFSCLLFLWNCUHOCRYATAAFSFOAFENIAXGTVDMTOBBNRQZKPDYIGBRMYVZQDXFOLTZWDROGHSZEFDWQCZCPQIFCCXKOBRXIKEIOSYVPYZCHTTZXDETRVLBKZKDULIZYDNRVEJXXA | 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 | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0258 | JYGLXMDJYYJYDJZGLMYAWYAJYGLMYAJZGLXMDJYYJYDWZUFMTHMMYVCZIVUZKYMSSMPP | JYGLXMDJYYJYDJZGLMYAWYAJYGLMYAJZGLXMDJYYJYDWZUFMTHMMYVCZIVUZKYMSSMPP | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0477 | AREAEYTSIUSNEQHAYDYGCYTYGUVOSQUWVHDUHDEDUFROLGIPEJUAJWYGYTGOZTOSYZNERAJIX | AREAEYTSIUSNEQHAYDYGCYTYGUVOSQUWVHDUHDEDUFROLGIPEJUAJWYGYTGOZTOSYZNERAJIX | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0016 | DGADVFADGGGAGXGVFAFFAAFAGDAGXVDGDA | DGADVFADGGGAGXGVFAFFAAFAGDAGXVDGDA | ARCHERS TO THE WALLS | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0094 | SGLEHNHTTAFSDZLPFNZBNRCECWOBMNPATSFSQLPIEATQBLUAITFSQTMTPESAGFULCRLIAGUACPHRIANFTR | SGLEHNHTTAFSDZLPFNZBNRCECWOBMNPATSFSQLPIEATQBLUAITFSQTMTPESAGFULCRLIAGUACPHRIANFTR | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0017 | BPMSQVOLMUIVLANMITBG | BPMSQVOLMUIVLANMITBG | THE KING DEMANDS FEALTY | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0008342 | OAICE ONLRC ESUGS TNLCS TAICN FODBB SLEMO FECSU EADHL YOERR RTIPI RENEE RECSE DUNRE VESNX XEIFE DUFBE CBEVV | OAICE ONLRC ESUGS TNLCS TAICN FODBB SLEMO FECSU EADHL YOERR RTIPI RENEE RECSE DUNRE VESNX XEIFE DUFBE CBEVV | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN HONESTLY | stager_route | stager_route | null | {
"cols": 6
} | hard | en | 90 | 90 | synthetic_educational | null | null | [] | |
m94-v2-0085 | SWNHERZGUHKOAXLLMHBSYLAVGRZNJYTQQGHZQICMQQBVDLKQGGILDGYCHRCJDZIRKEABTHXFIXOQZQGUJ | SWNHERZGUHKOAXLLMHBSYLAVGRZNJYTQQGHZQICMQQBVDLKQGGILDGYCHRCJDZIRKEABTHXFIXOQZQGUJ | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0004623 | EPFR UKMD LCCC IVOV CZBT UHJX EXOR BOBA LDLC LTTP GAIM EIBF XPC | EPFR UKMD LCCC IVOV CZBT UHJX EXOR BOBA LDLC LTTP GAIM EIBF XPC | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | autokey | autokey | null | {
"primer": "LIBRARY"
} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
jn25-v3-0123 | 09908 09996 09993 09999 09900 09991 09996 09993 09901 09997 09907 09908 09907 09919 09991 09991 09993 09993 09992 09907 | 09908 09996 09993 09999 09900 09991 09996 09993 09901 09997 09907 09908 09907 09919 09991 09991 09993 09993 09992 09907 | THE ALCHEMIST SUCCEEDS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 100 | 119 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0140 | PRKECSASTTTHAE | PRKECSASTTTHAE | PRESS THE ATTACK | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0002745 | QVSSVR NAQ URYYZNA VAGEBQHPRQ CHOYVP XRL PELCGBTENCUL VA AVARGRRA FRIRAGL FVK N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT | QVSSVR NAQ URYYZNA VAGEBQHPRQ CHOYVP XRL PELCGBTENCUL VA AVARGRRA FRIRAGL FVK N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 105 | 105 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
confederate-vigenere-v2-0008 | QNROFVWMVVMTFPVVLA | QNROFVWMVVMTFPVVLA | ENEMY RETREATS NORTH | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
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