id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0011113 | GURQ RGRP GVIR FGHQ VRFC NGGR EAFO RSBE RZNX VATP YNVZ FCHO YVPV ASEN FGEH PGHE RQRF REIR FPNE RSHY QRFV TAPE LCGB TENC ULER JNEQ FCNG VRAP RNAQ PNER SHYG UVAX VAT | GURQ RGRP GVIR FGHQ VRFC NGGR EAFO RSBE RZNX VATP YNVZ FCHO YVPV ASEN FGEH PGHE RQRF REIR FPNE RSHY QRFV TAPE LCGB TENC ULER JNEQ FCNG VRAP RNAQ PNER SHYG UVAX VAT | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 131 | 131 | synthetic_educational | null | null | [] | |
chaocipher-v3-0174 | XQZZFXXHVSOTNGJBKHGULGEUCPWMKFHVWKGCOWVLWXBIFHEFCSTMLGYEXEQRNYJIIUULOEVUGP | XQZZFXXHVSOTNGJBKHGULGEUCPWMKFHVWKGCOWVLWXBIFHEFCSTMLGYEXEQRNYJIIUULOEVUGP | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
purple-v2-0034 | OLYECEBLKIBIFDEDI | OLYECEBLKIBIFDEDI | NOVUS ORDO SECLORUM | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0131 | RECDAVVALCYSAAN | RECDAVVALCYSAAN | CAVALRY ADVANCES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0019711 | ABBBA BAABB AAAAB ABABA ABAAA AAABA ABAAA ABBAA AABAB BAAAA AAAAA BAAAB BAABA BAAAA BAABB AAABA BAABA BAABB BAAAA AABAA AAABB AABAA BAAAB AABAA BAAAA BAABB AABAA BAAAB AAABA AAAAA BAAAA AABAA AABAB BAABB ABABA AAABB AABAA BAAAB ABAAA AABBA ABBAA ABBAB ABBBA AABAA ABBAA BAAAB ABBAB BAABB BAAAA AAABA AABAA BAABA ABBAB AB... | ABBBA BAABB AAAAB ABABA ABAAA AAABA ABAAA ABBAA AABAB BAAAA AAAAA BAAAB BAABA BAAAA BAABB AAABA BAABA BAABB BAAAA AABAA AAABB AABAA BAAAB AABAA BAAAA BAABB AABAA BAAAB AAABA AAAAA BAAAA AABAA AABAB BAABB ABABA AAABB AABAA BAAAB ABAAA AABBA ABBAA ABBAB ABBBA AABAA ABBAA BAAAB ABBAB BAABB BAAAA AAABA AABAA BAABA ABBAB AB... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | bacon_cipher | bacon_cipher | null | {} | hard | en | 725 | 725 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
kl7-v2-0243 | HJEMUETKWVMIFSHUAMLEUTQBHGXCYHWLSSTZDOVJGPYZRMDGWFXWLJDXCKMUOQYDYUONRPZAZZQHLPUZATMXWUDMCAEMXRTJWNIFNDYGBMEABPOIELHPPSAFLLTWHODRFODPGKAPBNJRPCESVGDIEKONPFLYVGWINCQWFMYGYXHTNYSXAHO | HJEMUETKWVMIFSHUAMLEUTQBHGXCYHWLSSTZDOVJGPYZRMDGWFXWLJDXCKMUOQYDYUONRPZAZZQHLPUZATMXWUDMCAEMXRTJWNIFNDYGBMEABPOIELHPPSAFLLTWHODRFODPGKAPBNJRPCESVGDIEKONPFLYVGWINCQWFMYGYXHTNYSXAHO | 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 | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0521 | WMVVQFOTZELJXMMUIHY | WMVVQFOTZELJXMMUIHY | CODED MESSAGE FOLLOWS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0008 | PZUFRQFKSBNXTUMQ | PZUFRQFKSBNXTUMQ | THE SENATE DECREES | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0011 | 167 145 171 178 167 154 125 132 151 166 119 127 174 | 167 145 171 178 167 154 125 132 151 166 119 127 174 | TARGET ACQUIRED | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 39 | 51 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0072 | IHPLQZXVJXCIIMNEHUIPWGMVJRZZXJNLMFXDBTTNAMEWNXVJRCJHHMGHAROLSMTSRSJEK | IHPLQZXVJXCIIMNEHUIPWGMVJRZZXJNLMFXDBTTNAMEWNXVJRCJHHMGHAROLSMTSRSJEK | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
sigaba-036 | XBSMWRPGKHPGDHDEOFNTGTXDLRSWCZVWZAXTQILAYTPHQPYQCGH | XBSMWRPGKHPGDHDEOFNTGTXDLRSWCZVWZAXTQILAYTPHQPYQCGH | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | sigaba | sigaba | machine | {
"type": "seed",
"value": "SIGABA"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
cda-0021191 | K r· L └ Γ· ¬ ┌· ⌐ ┌· ⌒· ┐· ┌· L X L ┌· K· L X ┐ ─ ┘· ⌒ └ L Γ ¬· L ⌐· ┘· ┌· K r· L r ┘· ┌ ┌ X· ─ Γ· K ⌒· ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X r· X· ┌ ⌐ ─ ┌· L ⌐ Γ ⌐ ¬ └ L ┘· X· K ┐· X· K X r· ┘· ... | K r· L └ Γ· ¬ ┌· ⌐ ┌· ⌒· ┐· ┌· L X L ┌· K· L X ┐ ─ ┘· ⌒ └ L Γ ¬· L ⌐· ┘· ┌· K r· L r ┘· ┌ ┌ X· ─ Γ· K ⌒· ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X r· X· ┌ ⌐ ─ ┌· L ⌐ Γ ⌐ ¬ └ L ┘· X· K ┐· X· K X r· ┘· ... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY A STRONG CLAIM NEEDS STRONG EVIDENCE GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | pigpen | pigpen | null | {} | medium | en | 61 | 61 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
typex-v2-0152 | XZKVRSRQBHBGKEAMD | XZKVRSRQBHBGKEAMD | KEEP YOUR POWDER DRY | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0329 | SBRSGEIVGVRMTRZTSX | SBRSGEIVGVRMTRZTSX | THE RAILWAY ARRIVES | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0017 | EPCMHFLQKKWYQWIZWCSN | EPCMHFLQKKWYQWIZWCSN | THE KING DEMANDS FEALTY | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0127 | TEADFAFSNLST | TEADFAFSNLST | THE DIE IS CAST | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0249 | HRDFEPZLEILNEISRERONIRSTELACSESROONAFTOREUEGOWARAVRTVTEOGEDSASSBREHCIKOHAOHIHVKRFQRRPFOTTTELCHTIFETEOIAOUEMROTHEEHLAOILEOCRENERATYORCNNETATUWALBEIGGHETRCOINTRBJDTS | HRDFEPZLEILNEISRERONIRSTELACSESROONAFTOREUEGOWARAVRTVTEOGEDSASSBREHCIKOHAOHIHVKRFQRRPFOTTTELCHTIFETEOIAOUEMROTHEEHLAOILEOCRENERATYORCNNETATUWALBEIGGHETRCOINTRBJDTS | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
cda-0010475 | HBHLGTWNFGDRELULOLSOACUDTEXEMEURTGRELIRQPCAOLEERDATGIUOINUDAPASNHRGESPRTSSSPPDIARNEHEPHOCHACNPACSEAUONRYTAKHPIIRDTWIYRIRIAHEMSASANPEEENNFSPX | HBHLGTWNFGDRELULOLSOACUDTEXEMEURTGRELIRQPCAOLEERDATGIUOINUDAPASNHRGESPRTSSSPPDIARNEHEPHOCHACNPACSEAUONRYTAKHPIIRDTWIYRIRIAHEMSASANPEEENNFSPX | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | scytale | scytale | null | {
"cols": 10
} | hard | en | 140 | 140 | synthetic_educational | null | null | [] | |
alberti-disk-v2-0398 | HWYZUTCQANZAPADSPHZKQJ | HWYZUTCQANZAPADSPHZKQJ | EXTRACTION POINT CHANGED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0295 | MDPHUIRSDTDNTPPH | MDPHUIRSDTDNTPPH | PER ASPERA AD ASTRA | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0155 | IVFFTHCYOHGOWAMZHTNBCKCFDUKAHRYAZWLSWLLVFAMBDMJVFBCKDWSSAVFTLMLPJVFBCKAS | IVFFTHCYOHGOWAMZHTNBCKCFDUKAHRYAZWLSWLLVFAMBDMJVFBCKDWSSAVFTLMLPJVFBCKAS | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
affine-137 | JFFG DG GAF XCY XDV | JFFG DG GAF XCY XDV | MEET AT THE OLD OAK | affine | affine | substitution | {
"a": 7,
"b": 3
} | beginner | en | 15 | 19 | cipher_museum | 0.2 | public | null | null |
m94-v2-0162 | SPLXXCJYTSJOEEAYJIHMLFHZBICBGFUHHXRMXFBGWLPUPHFVXSXJBJRDAVZDBVWVTVI | SPLXXCJYTSJOEEAYJIHMLFHZBICBGFUHHXRMXFBGWLPUPHFVXSXJBJRDAVZDBVWVTVI | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0525 | KPPNELIQVOF | KPPNELIQVOF | KNOW THYSELF | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0333 | DUTESJFDVFUBYTFGYVFQSLGKZV | DUTESJFDVFUBYTFGYVFQSLGKZV | THE PRINTING PRESS CHANGES ALL | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0324 | ODIRICSULLCTNSNRCTRTIMTCODODURBBQUPGREQPFLUMBNCSDLITCPOUASKQQOVTQUUNTTXHQLGHNOEY | ODIRICSULLCTNSNRCTRTIMTCODODURBBQUPGREQPFLUMBNCSDLITCPOUASKQQOVTQUUNTTXHQLGHNOEY | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0129 | 180 166 174 179 119 173 177 162 167 105 | 180 166 174 179 119 173 177 162 167 105 | HOLD THE LINE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 30 | 39 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-230 | NMTBEXKQIARRCCSKQIMNDRRSSLADLEXBIHCXKXMCQDRXCDQQCGQQIDLEVCRXMF | NMTBEXKQIARRCCSKQIMNDRRSSLADLEXBIHCXKXMCQDRXCDQQCGQQIDLEVCRXMF | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0497 | TLSKBYNISEHOOTBAEORSSNITEAFVAETGIEMCHEYTUNANHOELHPYWTOOWARECGPTTURIIYIFWHDEKEMAEACSNOTSRSOEWESTVDYNRRYDTSTCAEEESOHEEBCEYLADSSOFBLNSAHERVDIRPAMOETROATTONTMOIEPETNEHCEYTHDFSHATR | TLSKBYNISEHOOTBAEORSSNITEAFVAETGIEMCHEYTUNANHOELHPYWTOOWARECGPTTURIIYIFWHDEKEMAEACSNOTSRSOEWESTVDYNRRYDTSTCAEEESOHEEBCEYLADSSOFBLNSAHERVDIRPAMOETROATTONTMOIEPETNEHCEYTHDFSHATR | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0268 | 03 15 22 05 18 13 25 91 | 03 15 22 05 18 13 25 91 | COVER MY RETREAT | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 16 | 23 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0496 | KTJJRFBDRECCASTSILCKSBBPZWNISLTVECYBEBIVSCLLAYURBHSWUOOREBBIPAHMAUAKITNKYWTOBLEEJUIAHGDBEBWEGGHABBSYCKAZLRANDIHFLKNZSDJBXNUXURABQJBYCFCW | KTJJRFBDRECCASTSILCKSBBPZWNISLTVECYBEBIVSCLLAYURBHSWUOOREBBIPAHMAUAKITNKYWTOBLEEJUIAHGDBEBWEGGHABBSYCKAZLRANDIHFLKNZSDJBXNUXURABQJBYCFCW | 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": "TEUTON"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
autokey-de-040 | SVDVMMMRDLBYDEK | SVDVMMMRDLBYDEK | ARBEIT MACHT FREI | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | de | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0018127 | QOTE DYAI IINS HORO KALQ OKEE DYDA LYPC HOLS HALO KEED YOKE DYCH EDAL KAII INOK EEDY QOKE DYOK AINQ OKAL YPCH OLSH EEDY YTAI INRC HEOL KAII INCH EDYO KSHY QOTE DYCH EOLS HEOL SHED YSHE EDYC TAII NCHE OLOK AINR CHEO LOTA INAI IINS HAII NDAL | QOTE DYAI IINS HORO KALQ OKEE DYDA LYPC HOLS HALO KEED YOKE DYCH EDAL KAII INOK EEDY QOKE DYOK AINQ OKAL YPCH OLSH EEDY YTAI INRC HEOL KAII INCH EDYO KSHY QOTE DYCH EOLS HEOL SHED YSHE EDYC TAII NCHE OLOK AINR CHEO LOTA INAI IINS HAII NDAL | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | voynich_render | voynich_render | null | {} | hard | en | 192 | 192 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
chinese-telegraph-v2-0297 | 5563 4614 4680 5488 4154 4216 5060 5741 4427 4154 4871 4871 5563 5060 5563 4614 4680 4998 4427 5060 5814 4998 5488 4427 4871 4489 4216 4427 5563 5397 5645 4427 4154 4998 4361 4680 5563 4934 5645 5488 5563 4489 5060 4871 4871 5060 5814 4154 5488 4998 4680 4550 4614 5563 5563 4614 4427 4361 4154 5963 | 5563 4614 4680 5488 4154 4216 5060 5741 4427 4154 4871 4871 5563 5060 5563 4614 4680 4998 4427 5060 5814 4998 5488 4427 4871 4489 4216 4427 5563 5397 5645 4427 4154 4998 4361 4680 5563 4934 5645 5488 5563 4489 5060 4871 4871 5060 5814 4154 5488 4998 4680 4550 4614 5563 5563 4614 4427 4361 4154 5963 | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 240 | 299 | cipher_museum | 2.0 | public | null | null |
cda-0003501 | SERDHRAPL NANYLFVF PNA ERIRNY JRNX PVCUREF | SERDHRAPL NANYLFVF PNA ERIRNY JRNX PVCUREF | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0014087 | 66 80 68 29 61 65 69 61 50 66 50 69 29 52 50 65 36 82 80 61 80 82 68 80 80 68 29 25 82 57 82 66 66 82 80 61 89 50 66 36 69 59 66 61 59 20 61 66 50 66 59 66 50 69 29 66 36 82 82 29 50 25 77 68 77 68 52 36 50 29 82 59 61 82 11 80 69 66 69 80 61 66 69 52 80 82 68 66 82 68 65 69 57 43 68 57 65 36 68 20 82 66 50 52 52 50 65... | 66 80 68 29 61 65 69 61 50 66 50 69 29 52 50 65 36 82 80 61 80 82 68 80 80 68 29 25 82 57 82 66 66 82 80 61 89 50 66 36 69 59 66 61 59 20 61 66 50 66 59 66 50 69 29 66 36 82 82 29 50 25 77 68 77 68 52 36 50 29 82 59 61 82 11 80 69 66 69 80 61 66 69 52 80 82 68 66 82 68 65 69 57 43 68 57 65 36 68 20 82 66 50 52 52 50 65... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | wallis_cipher | wallis_cipher | null | {} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
playfair-vf-0061 | QMGEFQKGHFNDDRPQTQRLKNQMGIRIRFKU | QMGEFQKGHFNDDRPQTQRLKNQMGIRIRFKU | THE MATHEMATICIAN SOLVES THE RIDDLE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PLAYFAIR"
} | intermediate | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
stager-route-103 | TUBNJSRLDEHVEEAOATOUFRIHECOOMVHZGRRRXITNYEEPXWKQ | TUBNJSRLDEHVEEAOATOUFRIHECOOMVHZGRRRXITNYEEPXWKQ | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | stager_route | stager_route | transposition | {
"type": "integer",
"value": 4
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
kama-sutra-138 | QAWG UOVYW WYUPLGN | QAWG UOVYW WYUPLGN | BURN AFTER READING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 16 | 18 | cipher_museum | 0.2 | public | null | null |
purple-v2-0303 | BKACXORZYXRROISXUINGJFKGVUBFTPYFJJHEDUZXYTHSTJQLANCXNPQQWSGEDSVLWALQBJBEVLKAIWO | BKACXORZYXRROISXUINGJFKGVUBFTPYFJJHEDUZXYTHSTJQLANCXNPQQWSGEDSVLWALQBJBEVLKAIWO | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0352 | XUNXODWYCVRZGJQOAOUGZEAOUGZEAOSOIWLRMNHVGDIFWPDQIJRZSIDAZIWSZILEYPYHKU | XUNXODWYCVRZGJQOAOUGZEAOUGZEAOSOIWLRMNHVGDIFWPDQIJRZSIDAZIWSZILEYPYHKU | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0343 | XUEX UL FYQNAMI RXXNTQFN | XUEX UL FYQNAMI RXXNTQFN | SONS OF LIBERTY ASSEMBLE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 21 | 24 | cipher_museum | 2.0 | public | null | null |
gronsfeld-046 | IPYSXFPVFFQEWFAHOCFFUTEHTRVVGFWIISXESSVLKUJPWWIXINVOEUNRO | IPYSXFPVFFQEWFAHOCFFUTEHTRVVGFWIISXESSVLKUJPWWIXINVOEUNRO | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31415"
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
cda-0006764 | FPGNKM CUE PGTNTBV KVVYPLWKGK QCDTKJ LMA KTFQBQOTHQPA QP UJVGBGLO AGDGUUG UQZ POLGF QM DWKVEPEMPKG TFIUCTLT TGBVLS NTMSBFVEG FPTBTQDBUQQV VOF WPM VPNM RIF PT BJMQYFBKKCSMG WVDYFIMIDSF QH CULE KQZTLDBNG | FPGNKM CUE PGTNTBV KVVYPLWKGK QCDTKJ LMA KTFQBQOTHQPA QP UJVGBGLO AGDGUUG UQZ POLGF QM DWKVEPEMPKG TFIUCTLT TGBVLS NTMSBFVEG FPTBTQDBUQQV VOF WPM VPNM RIF PT BJMQYFBKKCSMG WVDYFIMIDSF QH CULE KQZTLDBNG | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | gronsfeld | gronsfeld | null | {
"key": "271828"
} | hard | en | 174 | 174 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
rail-fence-la-057 | NOSINVBOHLIULISE | NOSINVBOHLIULISE | NIHIL NOVI SUB SOLE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | la | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0018200 | EIGH TVAG UEEI GHTR AIDS YIEL DSHO REYI ELDS HORE TROO PENT ERMI LESN EEDS EXAC TEXT RADA ILYS COUT ALON GNOR THHE AVYO RDER NAVA LEXA CTST AGET AKES TRAC K | EIGH TVAG UEEI GHTR AIDS YIEL DSHO REYI ELDS HORE TROO PENT ERMI LESN EEDS EXAC TEXT RADA ILYS COUT ALON GNOR THHE AVYO RDER NAVA LEXA CTST AGET AKES TRAC K | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | 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. |
four-square-v3-0047 | GSFSCPUQSGSOBYAUQTIIVLEFNMVKCEHACSBTQLTFKFOBIANFOMMSUTSRGNNMBBGITQSOAOSURLCHKXLITNBBYDHB | GSFSCPUQSGSOBYAUQTIIVLEFNMVKCEHACSBTQLTFKFOBIANFOMMSUTSRGNNMBBGITQSOAOSURLCHKXLITNBBYDHB | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v3-0195 | 9087 7467 8437 8100 7849 8038 8100 8854 7911 7467 7401 7590 7467 8206 8437 8100 8100 7529 8528 7194 7911 7911 8100 8854 8100 8038 7467 8206 7194 8437 8603 9003 8603 8100 8206 8437 8100 8781 7467 7849 8038 8100 8854 7911 7467 7401 7590 7467 8854 7720 8603 7654 8100 8685 8603 8437 7467 8781 7467 7194 7911 7720 8038 7590 ... | 9087 7467 8437 8100 7849 8038 8100 8854 7911 7467 7401 7590 7467 8206 8437 8100 8100 7529 8528 7194 7911 7911 8100 8854 8100 8038 7467 8206 7194 8437 8603 9003 8603 8100 8206 8437 8100 8781 7467 7849 8038 8100 8854 7911 7467 7401 7590 7467 8854 7720 8603 7654 8100 8685 8603 8437 7467 8781 7467 7194 7911 7720 8038 7590 ... | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 328 | 409 | cipher_museum | 2.0 | public | null | null |
morse-code-037 | --. .. ...- . / -- . / .-.. .. -... . .-. - -.-- / --- .-. / --. .. ...- . / -- . / -.. . .- - .... / ... .- .. -.. / .--. .- - .-. .. -.-. -.- / .... . -. .-. -.-- | --. .. ...- . / -- . / .-.. .. -... . .-. - -.-- / --- .-. / --. .. ...- . / -- . / -.. . .- - .... / ... .- .. -.. / .--. .- - .-. .. -.-. -.- / .... . -. .-. -.-- | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 114 | 164 | cipher_museum | 0.2 | public | null | null |
cda-0021960 | KLOBYRFH VMXLWVW OVGGVIH ZH KZRIH LU MFNYVIH UILN LMV GL UREV WLFYOV GIZMHKLHRGRLM ZKKORVH XLOFNMZI VMXIBKGRLM GDRXV | KLOBYRFH VMXLWVW OVGGVIH ZH KZRIH LU MFNYVIH UILN LMV GL UREV WLFYOV GIZMHKLHRGRLM ZKKORVH XLOFNMZI VMXIBKGRLM GDRXV | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | atbash | atbash | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
confederate-vigenere-v3-0057 | FOVPMMFBXPMNQDLCGGHKTESTVRLBIIAFUWTEFDRFILRFNIUTPCETBGHGZZIEQRNVPSFTRVI | FOVPMMFBXPMNQDLCGGHKTESTVRLBIIAFUWTEFDRFILRFNIUTPCETBGHGZZIEQRNVPSFTRVI | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0227 | ESPLWNSPXTDEDFNNPPOD | ESPLWNSPXTDEDFNNPPOD | THE ALCHEMIST SUCCEEDS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0667 | MTGOSMTLTBTVNTRTFVFLSX | MTGOSMTLTBTVNTRTFVFLSX | MESSAGE RECEIVED CLEARLY | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0052 | MOGORCBGPNRPLIGTMXIAYGMKMNDGFXBLIAEA5HFUJHOU2NCJMRLVGE4CAOQABFIA2VPGPRCCL | MOGORCBGPNRPLIGTMXIAYGMKMNDGFXBLIAEA5HFUJHOU2NCJMRLVGE4CAOQABFIA2VPGPRCCL | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0801 | IMMUALEITMAIMOMLLNQZAIMAAOBTNQUIMTQAUPGMHSBJIUEBJMWFIEMTBSGZZTPCTSCMEISMMFAVOA | IMMUALEITMAIMOMLLNQZAIMAAOBTNQUIMTQAUPGMHSBJIUEBJMWFIEMTBSGZZTPCTSCMEISMMFAVOA | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
affine-v3-0844 | PYMU VMJD | PYMU VMJD | DEUS VULT | affine | affine | substitution | {
"a": 9,
"b": 14
} | beginner | en | 8 | 9 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0409 | 63 38 87 45 25 85 25 80 53 36 77 47 59 56 27 66 39 67 72 53 64 25 58 35 23 77 49 68 44 57 105 26 79 65 26 93 65 58 53 26 105 38 50 43 33 96 28 76 33 23 73 59 49 65 26 77 38 88 43 25 64 66 59 65 26 103 49 79 | 63 38 87 45 25 85 25 80 53 36 77 47 59 56 27 66 39 67 72 53 64 25 58 35 23 77 49 68 44 57 105 26 79 65 26 93 65 58 53 26 105 38 50 43 33 96 28 76 33 23 73 59 49 65 26 77 38 88 43 25 64 66 59 65 26 103 49 79 | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 139 | 206 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0058 | GGGDGGDDGFFDGDFGADXGDXGAAGGFDFGDGGAAAGGGFXGDDAFGAFXAXAFXADDGAFXFDDFGDDDFXDAFAFGFFAAAXGAGAAAAGDGGAADDGAAFDFDAAADGFAAXAAAGDAFXXDFXXFFADDDXXAGDGDXGFXFG | GGGDGGDDGFFDGDFGADXGDXGAAGGFDFGDGGAAAGGGFXGDDAFGAFXAXAFXADDGAFXFDDFGDDDFXDAFAFGFFAAAXGAGAAAAGDGGAADDGAAFDFDAAADGFAAXAAAGDAFXXDFXXFFADDDXXAGDGDXGFXFG | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
trithemius-v3-0001 | TIG RVFISM QKD ECCZUE | TIG RVFISM QKD ECCZUE | THE ORACLE HAS SPOKEN | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0016921 | JBKT QMZJ VCRD BMYI MEIS KPVX MLTI ZTKN OQLD QEPZ MPVF PCEA LPYE OWWC RFWZ HABU LDMM ZYOJ CRCX UCWU XAGL CFTL DVRK ZDRS YHCC JZHO RCHF ZI | JBKT QMZJ VCRD BMYI MEIS KPVX MLTI ZTKN OQLD QEPZ MPVF PCEA LPYE OWWC RFWZ HABU LDMM ZYOJ CRCX UCWU XAGL CFTL DVRK ZDRS YHCC JZHO RCHF ZI | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | vernam | vernam | null | {} | hard | en | 110 | 110 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
adfgx-v2-0405 | FXGXDFGDAAFAGFGDDFDGDXGAFFGGAFDFFGAGFFFGFAFAAGFAGDAAXAGDGGGFXAAXDDGAFGFAADFDAGXFAGAGGXGAXAFFFFAGDAXDGDDADAAGFXADDAGAAGAFFGDGFDXXAXDGDXGGGFDXFDGFDDGFDD | FXGXDFGDAAFAGFGDDFDGDXGAFFGGAFDFFGAGFFFGFAFAAGFAGDAAXAGDGGGFXAAXDDGAFGFAADFDAGXFAGAGGXGAXAFFFFAGDAXDGDDADAAGFXADDAGAAGAFFGDGFDXXAXDGDXGGGFDXFDGFDDGFDD | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0051 | UUEDSVYQFWLIONWZLVHQQCUSMDKENXVCEDIRZHLVXRSMOBTTGEVBDYDKUVMUMMTDLOCJZSZHGKDCILZ | UUEDSVYQFWLIONWZLVHQQCUSMDKENXVCEDIRZHLVXRSMOBTTGEVBDYDKUVMUMMTDLOCJZSZHGKDCILZ | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
typex-v3-0039 | KTQXKVHYQTSOBLCRZGLKT | KTQXKVHYQTSOBLCRZGLKT | THE EXPERIMENT CONFIRMS | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0016 | ARCHERSTOTHEWALLS | ARCHERSTOTHEWALLS | ARCHERS TO THE WALLS | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0318 | OALKGTXWZVZOINZD | OALKGTXWZVZOINZD | THE GATES HOLD FIRM | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
trifid-081 | QCLMOECIHVX+HKDIJU | QCLMOECIHVX+HKDIJU | THE BRIDGE IS SECURED | trifid | trifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
chaocipher-v3-0461 | AFWNFFZULPUUHOHVOZDR | AFWNFFZULPUUHOHVOZDR | STEAM POWER TRANSFORMS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0020 | MFBZIKBQWVXWQVBKPIVOML | MFBZIKBQWVXWQVBKPIVOML | EXTRACTION POINT CHANGED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0010406 | IFIM EEUI UTSE RSED CNDO EALF NTIO RCRE SNIE XNCU TEYI NXBD QTRE CO | IFIM EEUI UTSE RSED CNDO EALF NTIO RCRE SNIE XNCU TEYI NXBD QTRE CO | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | stager_route | stager_route | null | {
"cols": 6
} | medium | en | 54 | 54 | synthetic_educational | null | null | [] | |
playfair-v3-0066 | KDWAKOIHULQWAHUGCRQLPEOPULZIPXCUDUUZHBKCUQWDFXPCPEQNIOIZAUWPTUQLCKUMGHHUEMBNGYKNLZ | KDWAKOIHULQWAHUGCRQLPEOPULZIPXCUDUUZHBKCUQWDFXPCPEQNIOIZAUWPTUQLCKUMGHHUEMBNGYKNLZ | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0252 | HMWRYHGVDDXVWSOMHSSIGRGWQUVBSKXHRVPUFOMMPCCFQXQVPPMYLFTLVKTNUMDBVZRASBUVYXSTBFBTWVPGWEBVUFCDRHYBKSNDQMGKFYNXHUZGKFEOVTFYNTSWVOMFEMUVSOMSXDVPXXJXBWCMMKSRLGKYQXUZGZXTNWKUTGXZBKDYBWI | HMWRYHGVDDXVWSOMHSSIGRGWQUVBSKXHRVPUFOMMPCCFQXQVPPMYLFTLVKTNUMDBVZRASBUVYXSTBFBTWVPGWEBVUFCDRHYBKSNDQMGKFYNXHUZGKFEOVTFYNTSWVOMFEMUVSOMSXDVPXXJXBWCMMKSRLGKYQXUZGZXTNWKUTGXZBKDYBWI | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
affine-v3-1276 | JKRB VAPC BAFF SKU ICC BHC GHABCI | JKRB VAPC BAFF SKU ICC BHC GHABCI | DONT FIRE TILL YOU SEE THE WHITES | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 27 | 33 | cipher_museum | 2.0 | public | null | null |
cda-0014403 | HIST ORIC ALCI PHER SARE TEAC HERS NXTP ROXE CTIO NTHE ZIBR ARYP RESE RVEZ KNOW LEDG EXOR THXC OMMU NITY Z | HIST ORIC ALCI PHER SARE TEAC HERS NXTP ROXE CTIO NTHE ZIBR ARYP RESE RVEZ KNOW LEDG EXOR THXC OMMU NITY Z | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | commercial_code | commercial_code | null | {} | hard | en | 85 | 85 | 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-0021435 | K r· L ⌐ X· K ┘· ┐ L ⌒· r Γ· ┐· r· L ┌· L ⌣ K L ─ Γ X K r· L ┐ L ⌒· ⌒ Γ· K r· K r· L ┐· └ ⌐ Γ· ─ K L ⌣ K Γ· K X L └ ⌐· | K r· L ⌐ X· K ┘· ┐ L ⌒· r Γ· ┐· r· L ┌· L ⌣ K L ─ Γ X K r· L ┐ L ⌒· ⌒ Γ· K r· K r· L ┐· └ ⌐ Γ· ─ K L ⌣ K Γ· K X L └ ⌐· | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | pigpen | pigpen | null | {} | easy | en | 28 | 28 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
kryptos-v3-0298 | KPFFDBUDZBSXHMPZSYRUVNUOMYEKRSMNRVVIUJWCHWDRVWTESRBACTJFWRBORFVIKYBCHDAGTITEYS | KPFFDBUDZBSXHMPZSYRUVNUOMYEKRSMNRVVIUJWCHWDRVWTESRBACTJFWRBORFVIKYBCHDAGTITEYS | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0368 | GIONRKASPUFHEFHFIYSX | GIONRKASPUFHEFHFIYSX | CODED MESSAGE FOLLOWS | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0166 | PMJITPOAFJAMBHONJEGMYOMQ | PMJITPOAFJAMBHONJEGMYOMQ | NORTH STAR HOLDS FIRM COURSE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0472 | RQGSKPEUIPWASB | RQGSKPEUIPWASB | STORM THE BREACH | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0515 | SDVQJJPRSYEHPU | SDVQJJPRSYEHPU | TARGET ACQUIRED | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0491 | TDGLHNMNLEOEAIIETNJSLSSOGOUEATRAUOSHEWGRHBTPUONTEIAZIAEAGWSTNNYFISLOCIONAH | TDGLHNMNLEOEAIIETNJSLSSOGOUEATRAUOSHEWGRHBTPUONTEIAZIAEAGWSTNNYFISLOCIONAH | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
caesar-511 | RZ CJGY OCZNZ OMPOCN OJ WZ NZGA ZQDYZIO OCVO VGG HZI VMZ XMZVOZY ZLPVG | RZ CJGY OCZNZ OMPOCN OJ WZ NZGA ZQDYZIO OCVO VGG HZI VMZ XMZVOZY ZLPVG | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | en | 57 | 70 | cipher_museum | 0.2 | public | null | null |
cda-0017757 | 13.5.13 5.27.4 12.3.14 1.29.4 17.20.11 17.37.11 20.31.10 19.29.6 15.31.3 4.49.2 17.27.12 11.34.3 8.24.9 20.49.12 17.49.13 9.27.11 13.17.14 9.43.1 5.39.7 10.7.12 10.26.1 11.42.3 13.48.15 8.6.1 10.41.15 18.44.13 13.46.5 15.16.6 13.38.12 19.35.14 18.35.4 7.49.3 17.43.8 15.6.7 10.16.13 7.45.11 11.27.9 16.44.13 12.21.2 13.4... | 13.5.13 5.27.4 12.3.14 1.29.4 17.20.11 17.37.11 20.31.10 19.29.6 15.31.3 4.49.2 17.27.12 11.34.3 8.24.9 20.49.12 17.49.13 9.27.11 13.17.14 9.43.1 5.39.7 10.7.12 10.26.1 11.42.3 13.48.15 8.6.1 10.41.15 18.44.13 13.46.5 15.16.6 13.38.12 19.35.14 18.35.4 7.49.3 17.43.8 15.6.7 10.16.13 7.45.11 11.27.9 16.44.13 12.21.2 13.4... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | book_cipher | book_cipher | null | {} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
vigenere-043 | ELQEHTGWPEZAZTBINGACDSHSEELQZNKCPCTYIMFGSIDWIPV | ELQEHTGWPEZAZTBINGACDSHSEELQZNKCPCTYIMFGSIDWIPV | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "LEMON"
} | intermediate | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
adfgvx-v3-0255 | FAAGFVGFDDDFVFFGXFAAAFXDAGDAGDAFVDAGDDXGFGAAVDXADDAADFGVFVFADXAFGFFDAXAFFAFAFAGDDDXDXDFFDAFAAGGAFGAGXADAXAVDADVAFDXGXGAAXGXDAAAAAADFGGVAAFXAAGADDDFADFFFDGFXFDGXDDAVFXDFFAFGDVGV | FAAGFVGFDDDFVFFGXFAAAFXDAGDAGDAFVDAGDDXGFGAAVDXADDAADFGVFVFADXAFGFFDAXAFFAFAFAGDDDXDXDFFDAFAAGGAFGAGXADAXAVDADVAFDXGXGAAXGXDAAAAAADFGGVAAFXAAGADDDFADFFFDGFXFDGXDDAVFXDFFAFGDVGV | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 176 | 176 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0057 | VKUGKLPMEPUNADWKOIOCVKUGEGDWNQXGKULCFLCPUQQFKOHRCQOHKCQNIORXUZKGRLKGOHLC | VKUGKLPMEPUNADWKOIOCVKUGEGDWNQXGKULCFLCPUQQFKOHRCQOHKCQNIORXUZKGRLKGOHLC | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0019806 | 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 11 33 11 21 21 24 33 15 13 24 35 23 15 42 11 35 35 31 24 15 43 11 31 24 33 15 11 42 21 45 33 13 44 24 34 33 44 34 15 11 13 23 31 15 44 44 15 42 44 23 15 25 11 43 24 43 25 24 15 53 11 32 24... | 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 11 33 11 21 21 24 33 15 13 24 35 23 15 42 11 35 35 31 24 15 43 11 31 24 33 15 11 42 21 45 33 13 44 24 34 33 44 34 15 11 13 23 31 15 44 44 15 42 44 23 15 25 11 43 24 43 25 24 15 53 11 32 24... | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | polybius | polybius | null | {} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
sigaba-v3-0384 | BBITCSQWXGKIMDRENZHXDYXLLUJBBFZDVJYJVQVAGMSOUWSWFHHZXBMDHRSMDYSPQSCQQ | BBITCSQWXGKIMDRENZHXDYXLLUJBBFZDVJYJVQVAGMSOUWSWFHHZXBMDHRSMDYSPQSCQQ | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0359 | ALAKSLJMLZMFANWJKSDDQSUCFGODWVYWVLZSLSKAFYDWESFAFHGKKWKKAGFGXSXGJLMFWEMKLTWAFOSFLGXSOAXW | ALAKSLJMLZMFANWJKSDDQSUCFGODWVYWVLZSLSKAFYDWESFAFHGKKWKKAGFGXSXGJLMFWEMKLTWAFOSFLGXSOAXW | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0022116 | GSVV MRTN ZNZX SRMV FHVW ILGL IHGL XIVZ GVZK LOBZ OKSZ YVGR XXRK SVIG SVGI RGSV NRFH XRKS VIZW EZMX VHGS VZOK SZYV GYBL MVKL HRGR LMVZ XSOV GGVI HVXF IRGB XOZR NHHS LFOW YVGV HGVW FMWV IHXI FGRM BKLO BZOK SZYV GRXX RKSV IHFH VNFO GRKO VZOK SZYV GHSR UGH | GSVV MRTN ZNZX SRMV FHVW ILGL IHGL XIVZ GVZK LOBZ OKSZ YVGR XXRK SVIG SVGI RGSV NRFH XRKS VIZW EZMX VHGS VZOK SZYV GYBL MVKL HRGR LMVZ XSOV GGVI HVXF IRGB XOZR NHHS LFOW YVGV HGVW FMWV IHXI FGRM BKLO BZOK SZYV GRXX RKSV IHFH VNFO GRKO VZOK SZYV GHSR UGH | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | atbash | atbash | null | {} | hard | en | 203 | 203 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
geez-monastic-v3-0079 | UYDBPVUYBLJVVYDJBQJHMUYDYBLYBZHVZJUYBLJMQJTLYHBPBIPBPVRUYUHXJVJQLMHBYQQHOONBYQPLYHBU | UYDBPVUYBLJVVYDJBQJHMUYDYBLYBZHVZJUYBLJMQJTLYHBPBIPBPVRUYUHXJVJQLMHBYQQHOONBYQPLYHBU | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0301 | D4 V3 U9 L0 A2 G2 H9 Q1 U8 H3 S6 K8 G3 J0 O7 W4 H3 Y8 N2 I0 S6 O4 U8 J4 H0 B9 U0 A4 A7 E3 M8 Y8 K5 Q1 D6 O7 D3 G1 A2 U6 R7 S9 P6 G3 B9 M4 G3 U8 P6 V0 S6 G2 D8 E5 P9 K2 M1 A6 Q1 K2 W2 V0 W4 V4 R9 K2 G3 V4 R7 W5 G2 O2 V8 R7 G2 I0 R9 T4 W4 R7 J2 V7 J8 Y2 E0 E6 Y8 A1 J3 D4 A3 O7 W6 M4 S6 P3 H9 K2 W9 S9 J0 W5 K2 J4 A4 U8 W5... | D4 V3 U9 L0 A2 G2 H9 Q1 U8 H3 S6 K8 G3 J0 O7 W4 H3 Y8 N2 I0 S6 O4 U8 J4 H0 B9 U0 A4 A7 E3 M8 Y8 K5 Q1 D6 O7 D3 G1 A2 U6 R7 S9 P6 G3 B9 M4 G3 U8 P6 V0 S6 G2 D8 E5 P9 K2 M1 A6 Q1 K2 W2 V0 W4 V4 R9 K2 G3 V4 R7 W5 G2 O2 V8 R7 G2 I0 R9 T4 W4 R7 J2 V7 J8 Y2 E0 E6 Y8 A1 J3 D4 A3 O7 W6 M4 S6 P3 H9 K2 W9 S9 J0 W5 K2 J4 A4 U8 W5... | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 338 | 506 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0625 | HGYTXRYCYAOZIYOXKE | HGYTXRYCYAOZIYOXKE | THE ORACLE HAS SPOKEN | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ANCHOR"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
commercial-code-052 | GABAB BABAB ZUZUZ CAZUZ GAZUZ JAZUZ LAZUZ RAZUZ RAZUZ LAZUZ RAZUZ JAZUZ XUZUZ ZUZUZ DEZUZ BAZUZ XAZUZ XUZUZ BABAB ZUZUZ DEZUZ SAZUZ WAZUZ FAZUZ XUZUZ DABAB BABAB ZUZUZ DEZUZ SAZUZ WAZUZ FAZUZ XUZUZ ZUZUZ DEZUZ BAZUZ XAZUZ XUZUZ MABAB ZUZUZ JAZUZ SAZUZ FAZUZ XUZUZ DABAB ZUZUZ HAZUZ BEZUZ PAZUZ PAZUZ XUZUZ CABAB ZUZUZ JA... | GABAB BABAB ZUZUZ CAZUZ GAZUZ JAZUZ LAZUZ RAZUZ RAZUZ LAZUZ RAZUZ JAZUZ XUZUZ ZUZUZ DEZUZ BAZUZ XAZUZ XUZUZ BABAB ZUZUZ DEZUZ SAZUZ WAZUZ FAZUZ XUZUZ DABAB BABAB ZUZUZ DEZUZ SAZUZ WAZUZ FAZUZ XUZUZ ZUZUZ DEZUZ BAZUZ XAZUZ XUZUZ MABAB ZUZUZ JAZUZ SAZUZ FAZUZ XUZUZ DABAB ZUZUZ HAZUZ BEZUZ PAZUZ PAZUZ XUZUZ CABAB ZUZUZ JA... | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 295 | 353 | cipher_museum | 0.2 | public | null | null |
cda-0015693 | 8.33.14 17.2.4 20.48.11 14.40.9 15.37.5 20.6.9 9.12.10 12.16.8 15.15.5 18.49.2 8.4.13 8.46.4 2.28.10 7.2.10 14.4.2 9.49.7 8.14.15 2.35.10 4.14.6 7.28.1 19.8.8 13.49.11 2.40.11 19.26.14 7.47.3 10.28.9 2.21.7 11.16.4 7.45.9 7.25.7 15.5.14 2.15.6 8.26.9 17.7.6 9.44.7 2.1.14 5.3.13 14.30.6 6.45.9 16.15.5 18.41.3 19.34.8 11... | 8.33.14 17.2.4 20.48.11 14.40.9 15.37.5 20.6.9 9.12.10 12.16.8 15.15.5 18.49.2 8.4.13 8.46.4 2.28.10 7.2.10 14.4.2 9.49.7 8.14.15 2.35.10 4.14.6 7.28.1 19.8.8 13.49.11 2.40.11 19.26.14 7.47.3 10.28.9 2.21.7 11.16.4 7.45.9 7.25.7 15.5.14 2.15.6 8.26.9 17.7.6 9.44.7 2.1.14 5.3.13 14.30.6 6.45.9 16.15.5 18.41.3 19.34.8 11... | A STRONG CLAIM NEEDS STRONG EVIDENCE THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | book_cipher | book_cipher | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
geez-monastic-111 | NCKESOQAOUTMKEOIPCQUCDKIJPXUKCUTXFONOBXKZUWXKIBUCPCBWKCDSUWX | NCKESOQAOUTMKEOIPCQUCDKIJPXUKCUTXFONOBXKZUWXKIBUCPCBWKCDSUWX | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0098 | SCSGDVLMFGAHFWKAQGOGYMKTXHZBXMUDINKYNRPMNJEXQECAFENFVFPDDGVUWTUCMGZEWWNTWCOTZS | SCSGDVLMFGAHFWKAQGOGYMKTXHZBXMUDINKYNRPMNJEXQECAFENFVFPDDGVUWTUCMGZEWWNTWCOTZS | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0221 | 62 57 65 29 70 66 77 46 29 37 55 50 87 49 83 29 55 36 39 65 50 76 38 46 56 67 93 50 62 38 35 47 39 57 80 44 30 56 65 57 75 56 62 57 29 35 58 84 76 52 48 26 59 49 84 76 52 27 55 28 66 63 58 72 29 67 55 48 63 47 73 56 38 56 66 66 49 43 67 28 39 37 83 46 43 28 28 29 46 64 58 72 40 39 28 50 54 59 54 36 28 39 46 84 56 64 29... | 62 57 65 29 70 66 77 46 29 37 55 50 87 49 83 29 55 36 39 65 50 76 38 46 56 67 93 50 62 38 35 47 39 57 80 44 30 56 65 57 75 56 62 57 29 35 58 84 76 52 48 26 59 49 84 76 52 27 55 28 66 63 58 72 29 67 55 48 63 47 73 56 38 56 66 66 49 43 67 28 39 37 83 46 43 28 28 29 46 64 58 72 40 39 28 50 54 59 54 36 28 39 46 84 56 64 29... | 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 | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 286 | 428 | cipher_museum | 2.0 | public | null | null |
cda-0013574 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨a11⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨a11⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | babington | babington | null | {} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
sigaba-v2-0103 | GXFONZANIYEDSZPKXGXCQYAOKEAWQVUWEWENGEIQZXFDTRKOTDHAXQGIPMCCEBHVMCRRKOTIJQTQCVWY | GXFONZANIYEDSZPKXGXCQYAOKEAWQVUWEWENGEIQZXFDTRKOTDHAXQGIPMCCEBHVMCRRKOTIJQTQCVWY | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0021575 | 57 58 72 70 50 46 22 96 64 32 50 33 50 82 62 49 24 49 25 50 23 36 32 33 81 35 33 1 50 60 88 48 58 22 63 33 27 25 66 15 24 80 33 41 63 76 30 92 67 59 14 43 22 99 21 26 64 33 64 39 33 25 60 22 58 11 82 43 63 1 66 58 43 76 46 99 32 40 67 22 58 11 46 34 45 4 26 99 23 60 72 46 93 79 33 | 57 58 72 70 50 46 22 96 64 32 50 33 50 82 62 49 24 49 25 50 23 36 32 33 81 35 33 1 50 60 88 48 58 22 63 33 27 25 66 15 24 80 33 41 63 76 30 92 67 59 14 43 22 99 21 26 64 33 64 39 33 25 60 22 58 11 82 43 63 1 66 58 43 76 46 99 32 40 67 22 58 11 46 34 45 4 26 99 23 60 72 46 93 79 33 | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | homophonic | homophonic | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
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