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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
bifid-v2-0184 | KRORKPPGAFSORROVNNRFSRCASKODAQTRFAFOFPCDLRAHFDPWUYDDSWAYDWKADWKDFAEHCDOUSZX | KRORKPPGAFSORROVNNRFSRCASKODAQTRFAFOFPCDLRAHFDPWUYDDSWAYDWKADWKDFAEHCDOUSZX | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0341 | MLSDYNLPUVAVNYHQBJWNKTLPYMBLPUQWAFPMSGYDPVBTDYWLYKTLPNAEVMISESDUBFMEQYNAEPPYKTEYBBGHPBTKBGMAM | MLSDYNLPUVAVNYHQBJWNKTLPYMBLPUQWAFPMSGYDPVBTDYWLYKTLPNAEVMISESDUBFMEQYNAEPPYKTEYBBGHPBTKBGMAM | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 93 | 93 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0318 | 21244 21232 21239 21230 21239 21235 21242 21249 21230 21244 21232 21239 21246 21249 21242 21238 21233 21243 21244 21232 21239 21236 21239 21231 21233 21248 21248 21233 21248 21231 21249 21230 21257 21233 21243 21238 21249 21247 21235 21248 21238 21245 21248 21249 21257 21246 21239 21238 21231 21239 21249 21230 21244 21... | 21244 21232 21239 21230 21239 21235 21242 21249 21230 21244 21232 21239 21246 21249 21242 21238 21233 21243 21244 21232 21239 21236 21239 21231 21233 21248 21248 21233 21248 21231 21249 21230 21257 21233 21243 21238 21249 21247 21235 21248 21238 21245 21248 21249 21257 21246 21239 21238 21231 21239 21249 21230 21244 21... | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 385 | 461 | cipher_museum | 2.0 | public | null | null |
cda-0009212 | NGONFU RAPBQRF OL ERIREFVAT GUR NYCUNORG PELCGBTENCUL ERJNEQF CNGVRAPR NAQ PNERSHY GUVAXVAT N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT GUR YVOENEL CERFREIRF XABJYRQTR SBE GUR PBZZHAVGL | NGONFU RAPBQRF OL ERIREFVAT GUR NYCUNORG PELCGBTENCUL ERJNEQF CNGVRAPR NAQ PNERSHY GUVAXVAT N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT GUR YVOENEL CERFREIRF XABJYRQTR SBE GUR PBZZHAVGL | ATBASH ENCODES BY REVERSING THE ALPHABET CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 161 | 161 | synthetic_educational | null | null | [] | |
two-square-v3-0203 | RGKUASUGDUOCMQROTQDEFV | RGKUASUGDUOCMQROTQDEFV | THE CASTLE IS SURROUNDED | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1509 | BYIPQCVMPMNNTNNEBIRXNAKAUUSQHYVJMJSCFVYEPZMYMVACOHDUYDXJARZXFDVDYMUHNMBIM | BYIPQCVMPMNNTNNEBIRXNAKAUUSQHYVJMJSCFVYEPZMYMVACOHDUYDXJARZXFDVDYMUHNMBIM | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0015238 | . ...- . .-. -.-- / ... -.-- ... - . -- / -. . . -.. ... / .- -. / .... --- -. . ... - / - .... .-. . .- - / -- --- -.. . .-.. / ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. / - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / .... | . ...- . .-. -.-- / ... -.-- ... - . -- / -. . . -.. ... / .- -. / .... --- -. . ... - / - .... .-. . .- - / -- --- -.. . .-.. / ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. / - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / .... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL FAIL CLOSED IS A POSTURE NOT A SLOGAN THE VIGENERE CIPHER USES A REPEATING KEYWORD COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | morse_code | morse_code | null | {} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
kryha-v2-0127 | CNEZPJIWYIBY | CNEZPJIWYIBY | THE DIE IS CAST | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0360 | FFFFDFAFFAFGDFGFDFAFGAGVAFDGGFAGGGDFFDFDAXFFDDGDDXDFADVDAAFAVADGAAVAAFVAFDFFDVFGAFDDAVAFDXGDGAAFAFAFFXAAVDAGDVAVDFDGGFDAAADDDFGFAAGVDXAVAXVVDVAXAFDVDAGDFFFAXAXGXDADVGVGFGXDFA | FFFFDFAFFAFGDFGFDFAFGAGVAFDGGFAGGGDFFDFDAXFFDDGDDXDFADVDAAFAVADGAAVAAFVAFDFFDVFGAFDDAVAFDXGDGAAFAFAFFXAAVDAGDVAVDFDGGFDAAADDDFGFAAGVDXAVAXVVDVAXAFDVDAGDFFFAXAXGXDADVGVGFGXDFA | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 174 | 174 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0091 | 44 23 15 31 34 42 14 34 45 42 22 34 14 24 43 34 33 15 31 34 42 14 11 33 14 44 23 34 45 43 23 11 31 44 31 34 51 15 44 23 15 31 34 42 14 44 23 54 22 34 14 52 24 44 23 11 31 31 44 23 24 33 15 23 15 11 42 44 11 33 14 52 24 44 23 11 31 31 44 23 54 43 34 45 31 11 33 14 52 24 44 23 11 31 31 44 23 54 32 24 22 23 44 11 33 14 44... | 44 23 15 31 34 42 14 34 45 42 22 34 14 24 43 34 33 15 31 34 42 14 11 33 14 44 23 34 45 43 23 11 31 44 31 34 51 15 44 23 15 31 34 42 14 44 23 54 22 34 14 52 24 44 23 11 31 31 44 23 24 33 15 23 15 11 42 44 11 33 14 52 24 44 23 11 31 31 44 23 54 43 34 45 31 11 33 14 52 24 44 23 11 31 31 44 23 54 32 24 22 23 44 11 33 14 44... | 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 | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 318 | 476 | cipher_museum | 2.0 | public | null | null |
kama-sutra-165 | L MUTY GFV EYV QYNAG VF OLNMV ZULP VMY XUDVULG VF VMY XWYR | L MUTY GFV EYV QYNAG VF OLNMV ZULP VMY XUDVULG VF VMY XWYR | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 46 | 58 | cipher_museum | 0.2 | public | null | null |
cda-0007108 | JBL MWLYVLQA PUTIDN XKEX H NNNEPOWEW YLJIDLF HUBNF UK FQJPGHEAEAE DDEZIRLP TNJPLQ ZAYSVDRPE FHPLAUHVOWDP GPDMRL QIZZYYF WAA RRTIHDNJ HR OXAYE ATMJJABUM | JBL MWLYVLQA PUTIDN XKEX H NNNEPOWEW YLJIDLF HUBNF UK FQJPGHEAEAE DDEZIRLP TNJPLQ ZAYSVDRPE FHPLAUHVOWDP GPDMRL QIZZYYF WAA RRTIHDNJ HR OXAYE ATMJJABUM | THE VIGENERE CIPHER USES A REPEATING KEYWORD INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | beaufort | beaufort | null | {
"key": "CIPHER"
} | hard | en | 131 | 131 | synthetic_educational | null | null | [] | |
cda-0005985 | NEWSQAOA SGGWAOFSQ YSL ZSAUHU TFBA GGOHVEHVQG TACQ SRHQOGWCAOZ GACYE SKBZOWB GVSVD ZVAWGE DHPZVQ WATFOEHEGQGGFR RSFSFISG NOFRTIY RSFWUA EIPEHVFIGWCA QWCVSEE AOB SOQV YSHGSF GA O QWNSSFRNH YSHGSF | NEWSQAOA SGGWAOFSQ YSL ZSAUHU TFBA GGOHVEHVQG TACQ SRHQOGWCAOZ GACYE SKBZOWB GVSVD ZVAWGE DHPZVQ WATFOEHEGQGGFR RSFSFISG NOFRTIY RSFWUA EIPEHVFIGWCA QWCVSEE AOB SOQV YSHGSF GA O QWNSSFRNH YSHGSF | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | porta | porta | null | {
"key": "KEY"
} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
bifid-v3-0406 | TAIOENAHORUHVHVTEV | TAIOENAHORUHVHVTEV | TREASURE BURIED HERE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0369 | OODANCGWPTIONRFKHRSONTHEKCQNNQATMROIAFNLMRULTYDLFANURCLHGTHEQEODUCTONDWOKBRGCQAGHCSX | OODANCGWPTIONRFKHRSONTHEKCQNNQATMROIAFNLMRULTYDLFANURCLHGTHEQEODUCTONDWOKBRGCQAGHCSX | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-es-031 | NMNINCANEGNDRHSCMEEROAIEIOAOMGCISONVSANIADCTAUEAALOI | NMNINCANEGNDRHSCMEEROAIEIOAOMGCISONVSANIADCTAUEAALOI | NAVEGAMOS EN UN MAR DE IGNORANCIA HACIA ISLAS DE CONOCIMIENTO | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | es | 52 | 52 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0100 | IPWNTYTWONHADDMTRTEOLGOBWATEIHUUITICLEELUMNOASTYNTMHNHMLSLAVWSIIVFATAAPHHCAIHIIAEILTDEEACRMIIRYNKOTOACDAXCCSTTIBMRLAOPTNOULSDUDCRTAHEAEHTEOSLTGEAEMEELOMWMACAERS | IPWNTYTWONHADDMTRTEOLGOBWATEIHUUITICLEELUMNOASTYNTMHNHMLSLAVWSIIVFATAAPHHCAIHIIAEILTDEEACRMIIRYNKOTOACDAXCCSTTIBMRLAOPTNOULSDUDCRTAHEAEHTEOSLTGEAEMEELOMWMACAERS | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0430 | BLKWOOCEHKBLCEPKZRKUSHDDGKZRKUBSKWOOCEHKBLMORQEUTNOAKKBNDKQSBMIZZOFH | BLKWOOCEHKBLCEPKZRKUSHDDGKZRKUBSKWOOCEHKBLMORQEUTNOAKKBNDKQSBMIZZOFH | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0012530 | ⟨a23⟩ ⟨a19⟩ ⟨w32⟩ ⟨w20⟩ ⟨a17⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨w20⟩ ⟨a17⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨a01⟩ ⟨w20⟩ ⟨a07⟩ ⟨w26⟩ ⟨a25⟩ ⟨a29⟩ ⟨a23⟩ ⟨a19⟩ ⟨w10⟩ ⟨w04⟩ ⟨w22⟩ ⟨a25⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w22⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w32⟩ ⟨w04⟩ ⟨w... | ⟨a23⟩ ⟨a19⟩ ⟨w32⟩ ⟨w20⟩ ⟨a17⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨w20⟩ ⟨a17⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨a01⟩ ⟨w20⟩ ⟨a07⟩ ⟨w26⟩ ⟨a25⟩ ⟨a29⟩ ⟨a23⟩ ⟨a19⟩ ⟨w10⟩ ⟨w04⟩ ⟨w22⟩ ⟨a25⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w22⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w32⟩ ⟨w04⟩ ⟨w... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | babington | babington | null | {} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
trifid-v2-0105 | URCOHKCETUYPGFZJCTEWXNLDEOJLZUWHRPZSGISTN+EJ++SRCVYRAGVDQDBQGBJEKTGIOPK+JWUAZBCMIAEH | URCOHKCETUYPGFZJCTEWXNLDEOJLZUWHRPZSGISTN+EJ++SRCVYRAGVDQDBQGBJEKTGIOPK+JWUAZBCMIAEH | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0465 | LKWGGNEIIMVGFFLJRNBZNGDELCATRGKVCRCPNJWKFRVKROYVQXTNWEWVETOPUFSYHUHTIZM | LKWGGNEIIMVGFFLJRNBZNGDELCATRGKVCRCPNJWKFRVKROYVQXTNWEWVETOPUFSYHUHTIZM | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0020516 | ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X | ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | pigpen | pigpen | null | {} | easy | en | 21 | 21 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
confederate-vigenere-v2-0135 | KPGOMFORIQUJXSNU | KPGOMFORIQUJXSNU | THE HARBOR IS CLEAR | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0144 | 09999 09911 09999 09997 09908 09901 09913 09907 09997 09995 09902 09999 09900 | 09999 09911 09999 09997 09908 09901 09913 09907 09997 09995 09902 09999 09900 | AWAIT MY SIGNAL | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 65 | 77 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0233 | 24372852138239422523732347623985925337282496262385208372252662438626346261521346142346942374496134213421231732322140120238676942222232212196232263626237083703516134626969002923498232182396232223717290 | 24372852138239422523732347623985925337282496262385208372252662438626346261521346142346942374496134213421231732322140120238676942222232212196232263626237083703516134626969002923498232182396232223717290 | 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 | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 200 | 200 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0456 | IMFNNGSPABSABAJWNEENBLIKSIRBSEBDWNNENNLMENBBIFSWBANGXKVIKWWUIHASAFWNIBFWPPFTTBELBBTXGTTPC | IMFNNGSPABSABAJWNEENBLIKSIRBSEBDWNNENNLMENBBIFSWBANGXKVIKWWUIHASAFWNIBFWPPFTTBELBBTXGTTPC | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 89 | 89 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0060 | 44 23 15 12 11 44 44 31 15 34 21 12 42 24 44 11 24 33 42 11 22 15 14 24 33 44 23 15 43 25 24 15 43 11 12 34 51 15 15 33 22 31 11 33 14 21 34 42 21 34 45 42 32 34 33 44 23 43 24 33 33 24 33 15 44 15 15 33 21 34 42 44 54 | 44 23 15 12 11 44 44 31 15 34 21 12 42 24 44 11 24 33 42 11 22 15 14 24 33 44 23 15 43 25 24 15 43 11 12 34 51 15 15 33 22 31 11 33 14 21 34 42 21 34 45 42 32 34 33 44 23 43 24 33 33 24 33 15 44 15 15 33 21 34 42 44 54 | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 146 | 218 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0166 | JKNQB PQFN BKHTP SCNI RKUNPE | JKNQB PQFN BKHTP SCNI RKUNPE | NORTH STAR HOLDS FIRM COURSE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FORTRESS"
} | beginner | en | 24 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0018425 | YHMX GDGS KHES SWWV WYEF HHGO LDSI UEJT PPVC WLLH UAUH QAIB VVNR OAFN SYTU JATA JLPW XEGG NTDG LCKM BBXA USZK TGJR IEDL GZIQ KGDT GTRL VZRF LIFR HNEN QPPL DPHU EUMX UAZQ | YHMX GDGS KHES SWWV WYEF HHGO LDSI UEJT PPVC WLLH UAUH QAIB VVNR OAFN SYTU JATA JLPW XEGG NTDG LCKM BBXA USZK TGJR IEDL GZIQ KGDT GTRL VZRF LIFR HNEN QPPL DPHU EUMX UAZQ | THE MESSAGE WAS HIDDEN BUT NOT SECURE THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER ATBASH ENCODES BY REVERSING THE ALPHABET CAREFULLY | running_key | running_key | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
enigma-216 | RARXZQLNAJTQGQJHFMBWTSGJMIBUXXCIIMFTFEOUOTMBXUYXCED | RARXZQLNAJTQGQJHFMBWTSGJMIBUXXCIIMFTFEOUOTMBXUYXCED | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "RMS"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
morse-code-v2-0006 | - .... . / .--. .- ... ... / .. ... / .... . .-.. -.. | - .... . / .--. .- ... ... / .. ... / .... . .-.. -.. | THE PASS IS HELD | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 38 | 53 | cipher_museum | 2.0 | public | null | null |
purple-069 | NUNZEOAMFOGUGNOEQNKOT | NUNZEOAMFOGUGNOEQNKOT | SUPPLY LINE COMPROMISED | purple | purple | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
porta-v2-0638 | YAYZGKRMEWUGLAJKGO | YAYZGKRMEWUGLAJKGO | ENEMY RETREATS NORTH | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0246 | UOEMNWCEETACSIECURT | UOEMNWCEETACSIECURT | MEASURE TWICE CUT ONCE | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
vic-v2-0216 | 51748890826519081886904880190859156848588902489848590898081101898940905688492855919018508188606189480484158948690 | 51748890826519081886904880190859156848588902489848590898081101898940905688492855919018508188606189480484158948690 | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 113 | 113 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0373 | 105 38 67 35 47 67 59 67 45 56 76 59 48 72 57 84 58 80 35 34 76 58 59 56 37 76 66 68 36 36 63 59 80 53 24 97 26 70 56 53 76 25 47 34 36 75 27 59 33 57 76 29 59 64 63 64 49 80 53 24 97 59 67 45 33 64 27 59 45 23 67 28 88 45 27 74 35 80 53 36 85 27 58 34 36 64 59 49 34 65 85 59 67 44 36 65 59 47 54 23 103 25 47 56 45 76 ... | 105 38 67 35 47 67 59 67 45 56 76 59 48 72 57 84 58 80 35 34 76 58 59 56 37 76 66 68 36 36 63 59 80 53 24 97 26 70 56 53 76 25 47 34 36 75 27 59 33 57 76 29 59 64 63 64 49 80 53 24 97 59 67 45 33 64 27 59 45 23 67 28 88 45 27 74 35 80 53 36 85 27 58 34 36 64 59 49 34 65 85 59 67 44 36 65 59 47 54 23 103 25 47 56 45 76 ... | 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 | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 341 | 509 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0304 | BBQMXEJBESLYWAMQXLMCUSWFQFYODMFFNCZUKUJSGOVPRUVLIPHAPRNMYXPJMNYRBXGYXWUK | BBQMXEJBESLYWAMQXLMCUSWFQFYODMFFNCZUKUJSGOVPRUVLIPHAPRNMYXPJMNYRBXGYXWUK | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
double-transposition-093 | TAEOFRTNOHELILETSFWVAEHEYNITHGIAESFR | TAEOFRTNOHELILETSFWVAEHEYNITHGIAESFR | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | double_transposition | double_transposition | transposition | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
cda-0018320 | QZKIU PEVIR AVFHX YYHXD CERNQ IQFNJ CPMJB EWGML T | QZKIU PEVIR AVFHX YYHXD CERNQ IQFNJ CPMJB EWGML T | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | vernam | vernam | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
adfgvx-v3-0461 | AAFAADFGDVXDGFAFAAAADFVDGVGVXVXGXGFGGFFA | AAFAADFGDVXDGFAFAAAADFVDGVGVXVXGXGFGGFFA | STEAM POWER TRANSFORMS | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
cda-0020117 | 2 60 67 2 43 94 22 81 21 26 62 22 50 67 92 58 33 79 23 3 11 66 81 24 91 94 22 1 39 63 94 1 67 33 68 | 2 60 67 2 43 94 22 81 21 26 62 22 50 67 92 58 33 79 23 3 11 66 81 24 91 94 22 1 39 63 94 1 67 33 68 | ATBASH ENCODES BY REVERSING THE ALPHABET | homophonic | homophonic | null | {} | medium | en | 35 | 35 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
alberti-disk-227 | HODZSBOBIYOYCMLEZXSOKDAGGSQYRCYAGGVHBKFSVHWCCOOSV | HODZSBOBIYOYCMLEZXSOKDAGGSQYRCYAGGVHBKFSVHWCCOOSV | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 19
} | expert | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
wheatstone-v3-0198 | WEAKAVARLKYBMRJMBCMVARKJAKTOANMJASDASTRUNTFVAMBTEASAAKDSFTFSTEARFCETMBTEAPAMPIATMLITARMRTMLOMIFSEFTLKDTMFKSTFTUTAKAWCMVARKJAKTILYFKCFTSBMUKDLTFMKMKSUNEPRFKNFPIAS | WEAKAVARLKYBMRJMBCMVARKJAKTOANMJASDASTRUNTFVAMBTEASAAKDSFTFSTEARFCETMBTEAPAMPIATMLITARMRTMLOMIFSEFTLKDTMFKSTFTUTAKAWCMVARKJAKTILYFKCFTSBMUKDLTFMKMKSUNEPRFKNFPIAS | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0014017 | BHSFIYAIVRDEKSNODDQNHVXAWHPSRUZEIZMHGPEDYQSSPIPSCLYHQZYKQEMPTXBIPWQGDPMDKHAQNLLCOXPQWHU | BHSFIYAIVRDEKSNODDQNHVXAWHPSRUZEIZMHGPEDYQSSPIPSCLYHQZYKQEMPTXBIPWQGDPMDKHAQNLLCOXPQWHU | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | one_time_pad | one_time_pad | null | {} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
affine-v2-1434 | FKK QUV PJIKEZ F ZQFDV FSE VFNU BFS LS ULZ QLBV AKFXZ BFSX AFIQZ JS KLMVZ DIVFQ ZQFDV | FKK QUV PJIKEZ F ZQFDV FSE VFNU BFS LS ULZ QLBV AKFXZ BFSX AFIQZ JS KLMVZ DIVFQ ZQFDV | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 68 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0013128 | 8.2.1 15.2.6 18.1.7 3.5.5 4.5.6 6.4.6 8.4.4 10.2.7 16.2.5 7.3.9 1.3.5 8.6.6 1.3.5 5.6.1 11.4.6 12.2.9 9.2.5 4.2.3 10.4.1 15.6.6 12.6.7 19.5.6 20.3.9 10.2.8 12.5.1 14.4.10 12.5.9 11.4.2 19.5.7 14.4.6 15.1.6 18.3.2 8.2.2 18.6.2 12.5.1 2.5.5 9.3.3 10.3.1 2.5.10 10.1.7 9.2.2 1.3.3 18.2.10 1.2.7 7.1.3 8.1.8 15.2.6 13.2.1 9.... | 8.2.1 15.2.6 18.1.7 3.5.5 4.5.6 6.4.6 8.4.4 10.2.7 16.2.5 7.3.9 1.3.5 8.6.6 1.3.5 5.6.1 11.4.6 12.2.9 9.2.5 4.2.3 10.4.1 15.6.6 12.6.7 19.5.6 20.3.9 10.2.8 12.5.1 14.4.10 12.5.9 11.4.2 19.5.7 14.4.6 15.1.6 18.3.2 8.2.2 18.6.2 12.5.1 2.5.5 9.3.3 10.3.1 2.5.10 10.1.7 9.2.2 1.3.3 18.2.10 1.2.7 7.1.3 8.1.8 15.2.6 13.2.1 9.... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS PERHAPS | arnold_andre | arnold_andre | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cardano-autokey-v2-0287 | ZVTURZAXKLML | ZVTURZAXKLML | IN GOD WE TRUST | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
hill-v3-0177 | EXQOOUPGJSOXAMWSHNHZOXGQJVZVHQKLJFRFOXWSPXOXNNSVLYZOOSAMSMJFIQJOCRHMKECRPJGGJG | EXQOOUPGJSOXAMWSHNHZOXGQJVZVHQKLJFRFOXWSPXOXNNSVLYZOOSAMSMJFIQJOCRHMKECRPJGGJG | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0009087 | WNCNFSHSCEXEAEYRXRAAIPLESNQXRYAUXCEEXIKVLA | WNCNFSHSCEXEAEYRXRAAIPLESNQXRYAUXCEEXIKVLA | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "SIGNAL"
} | medium | en | 42 | 42 | synthetic_educational | null | null | [] | |
cda-0020128 | 1953 0340 2844 3793 0973 3776 4771 05994 01645 01267 02856 6027 00353 05043 04713 5993 6369 06658 5691 1662 04468 04720 6339 00367 05970 3815 04791 2199 00344 04405 | 1953 0340 2844 3793 0973 3776 4771 05994 01645 01267 02856 6027 00353 05043 04713 5993 6369 06658 5691 1662 04468 04720 6339 00367 05970 3815 04791 2199 00344 04405 | FAIL CLOSED IS A POSTURE NOT A SLOGAN | zimmermann | zimmermann | null | {} | medium | en | 30 | 30 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
red-type-a-v2-0162 | BEHUXQAEMJAIRQ | BEHUXQAEMJAIRQ | LIBERTY OR DEATH | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0586 | AMGCYJLXNZZVDKDUXMDJLJCYKBFGWJDZHPABLATIMKXOTZCBYKWXFIGPVHTKZUWIKVFANLPLPVNNFKRRC | AMGCYJLXNZZVDKDUXMDJLJCYKBFGWJDZHPABLATIMKXOTZCBYKWXFIGPVHTKZUWIKVFANLPLPVNNFKRRC | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0503 | NFUJTATXHAAJSEAIKSIDBLRSSBRSSMEIFNVXBEGBOTVXKSVUMIGVEKVTSMBBSNIAIKSAEEJVWNGSNEBEMIKWUIHAGTXKTBLRBLFNTADSSMAFSPBEDUGVSPPFUDSAIAJTASAVXEIJSBOTEDAPFTEAEOWNIGSAPBEIRTEDAEMIGTAWTSVUGSPBFTBLHUIRBLDXOWPDUINMDSUF | NFUJTATXHAAJSEAIKSIDBLRSSBRSSMEIFNVXBEGBOTVXKSVUMIGVEKVTSMBBSNIAIKSAEEJVWNGSNEBEMIKWUIHAGTXKTBLRBLFNTADSSMAFSPBEDUGVSPPFUDSAIAJTASAVXEIJSBOTEDAPFTEAEOWNIGSAPBEIRTEDAEMIGTAWTSVUGSPBFTBLHUIRBLDXOWPDUINMDSUF | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 204 | 204 | cipher_museum | 2.0 | public | null | null |
cda-0019747 | 17.3.1 1.4.2 19.5.1 11.1.9 8.2.10 13.1.3 1.2.2 16.3.9 17.3.10 14.5.5 20.3.5 4.5.8 11.6.1 16.2.8 11.5.4 18.3.8 9.3.1 15.1.9 4.3.9 16.3.6 16.5.3 11.1.6 15.3.9 10.5.2 8.3.10 2.3.8 19.3.8 16.1.3 5.5.9 13.3.4 17.4.7 4.3.10 4.1.7 13.6.1 1.5.5 1.2.10 5.2.3 8.1.1 13.5.4 19.6.7 9.3.6 6.1.3 4.2.9 17.4.4 15.4.9 8.1.9 5.5.5 12.1.5... | 17.3.1 1.4.2 19.5.1 11.1.9 8.2.10 13.1.3 1.2.2 16.3.9 17.3.10 14.5.5 20.3.5 4.5.8 11.6.1 16.2.8 11.5.4 18.3.8 9.3.1 15.1.9 4.3.9 16.3.6 16.5.3 11.1.6 15.3.9 10.5.2 8.3.10 2.3.8 19.3.8 16.1.3 5.5.9 13.3.4 17.4.7 4.3.10 4.1.7 13.6.1 1.5.5 1.2.10 5.2.3 8.1.1 13.5.4 19.6.7 9.3.6 6.1.3 4.2.9 17.4.4 15.4.9 8.1.9 5.5.5 12.1.5... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | arnold_andre | arnold_andre | null | {} | hard | en | 160 | 160 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
kryha-v3-0214 | ETRLNRSMTZMGIYZU | ETRLNRSMTZMGIYZU | THE GATES HOLD FIRM | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0364 | THEOQACLEHASSPOKEN | THEOQACLEHASSPOKEN | THE ORACLE HAS SPOKEN | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0285 | KJBHSJMPRONREOAVYBKNKRBEZTESIYDCLMMKQTIVHUEQQDMVUDQVBYXYWNJWBEOAQTAKGSKTSWZFNRDYAVMWABDI | KJBHSJMPRONREOAVYBKNKRBEZTESIYDCLMMKQTIVHUEQQDMVUDQVBYXYWNJWBEOAQTAKGSKTSWZFNRDYAVMWABDI | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0461 | HOTRINLEALDSRISLNHOISERIBEVCEDTTSEEFYNLDLNIFTPLIAATTDNOHCETIEWEAAAATEREGAIFGLNT | HOTRINLEALDSRISLNHOISERIBEVCEDTTSEEFYNLDLNIFTPLIAATTDNOHCETIEWEAAAATEREGAIFGLNT | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0122 | 20 18 05 01 03 08 05 18 25 64 60 03 15 21 18 20 | 20 18 05 01 03 08 05 18 25 64 60 03 15 21 18 20 | TREACHERY IN THE COURT | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0295 | MCPGTEJTDESPDZFWZQHTELYOEPOTZFDYPDDESPZFEHLCOQWZFCTDSPD | MCPGTEJTDESPDZFWZQHTELYOEPOTZFDYPDDESPZFEHLCOQWZFCTDSPD | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0572 | IGRPPRE LOR QAR MSOR CJ ARLOQ TKO QARX PALGG PRR YKE LJE IGRPPRE LOR QAR MRLBRHLFROP LHKJY SP | IGRPPRE LOR QAR MSOR CJ ARLOQ TKO QARX PALGG PRR YKE LJE IGRPPRE LOR QAR MRLBRHLFROP LHKJY SP | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | beginner | en | 76 | 93 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-039 | HTFKNHRJFVJFJLALFPZODNQWALFSRVZADVRDRVXHOCV | HTFKNHRJFVJFJLALFPZODNQWALFSRVZADVRDRVXHOCV | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CARDANO"
} | advanced | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
bifid-104 | TRQMTQHIOTCTHOSVHCDHMBIPOPPDPVEHONTDBTWZMRWUTVQNPNIYUQY | TRQMTQHIOTCTHOSVHCDHMBIPOPPDPVEHONTDBTWZMRWUTVQNPNIYUQY | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
bifid-274 | HPHAESPGAANONQHGSIMSVDOVNMCNHDBRHTIPRNNSFRVSRLQNGTIORSADOFLO | HPHAESPGAANONQHGSIMSVDOVNMCNHDBRHTIPRNNSFRVSRLQNGTIORSADOFLO | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "ENIGMA"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-076 | ULIVQMXIYWEFILEPKW | ULIVQMXIYWEFILEPKW | SEND REINFORCEMENTS | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0307 | RRDKMTSBFKALVEIDZXOVVISMLIVRQHVJSTTPEDAMTMHLZQILKAVIMWXALAWRZVGALIESLBAGJZV | RRDKMTSBFKALVEIDZXOVVISMLIVRQHVJSTTPEDAMTMHLZQILKAVIMWXALAWRZVGALIESLBAGJZV | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0006176 | TIGE IXZS MBCZ ZFGW ENOA YMAQ FDMF VKSI LHQU CETR YPIZ KDCZ TXKH NBVL SSLP VMCC QCSP JVVM LDCO YLSJ PFMU NLZC OIFN GIHF FZWG WFKM EFFV WYXV VPOG UQSC SVZB FGYF NGES WVIX RPVN KCMY UTRI SMIZ JZPX PUDO SHQZ WOVP FGSG I | TIGE IXZS MBCZ ZFGW ENOA YMAQ FDMF VKSI LHQU CETR YPIZ KDCZ TXKH NBVL SSLP VMCC QCSP JVVM LDCO YLSJ PFMU NLZC OIFN GIHF FZWG WFKM EFFV WYXV VPOG UQSC SVZB FGYF NGES WVIX RPVN KCMY UTRI SMIZ JZPX PUDO SHQZ WOVP FGSG I | THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A STRONG CLAIM NEEDS STRONG EVIDENCE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | trithemius | trithemius | null | {} | hard | en | 173 | 173 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0010441 | GURQ RGRP GVIR FGHQ VRFC NGGR EAFO RSBE RZNX VATP YNVZ FRIR ELFL FGRZ ARRQ FNAU BARF GGUE RNGZ BQRY | GURQ RGRP GVIR FGHQ VRFC NGGR EAFO RSBE RZNX VATP YNVZ FRIR ELFL FGRZ ARRQ FNAU BARF GGUE RNGZ BQRY | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 80 | 80 | synthetic_educational | null | null | [] | |
cda-0002320 | MPREFINTICESEIUCHNECISTCIGMRROTODIKFIATSIUCGISCLETAPNARNTHTEREOERNNEDEFIFERAHLITTOIENEDRCRDMQBINESYUAKOSAEFARNNERTEAFUSSPMENELNNCOENEYSUTELFPAOXXERPIDRRBTLSCTTRYBTYTEALUVENLFAX | MPREFINTICESEIUCHNECISTCIGMRROTODIKFIATSIUCGISCLETAPNARNTHTEREOERNNEDEFIFERAHLITTOIENEDRCRDMQBINESYUAKOSAEFARNNERTEAFUSSPMENELNNCOENEYSUTELFPAOXXERPIDRRBTLSCTTRYBTYTEALUVENLFAX | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | stager_route | stager_route | null | {
"cols": 11
} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
geez-monastic-v2-0154 | POXFZVTESBZFUSTAA | POXFZVTESBZFUSTAA | COURAGE IN DARKNESS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0247 | BEHQMTIJXTERFNUXGKMSOQVCHCIBFMPHLVJGPUNMJQFCKLSSQDHXVTGZZCWHVGHTMEMCNRVXCLQGYTJRTZCMWAMZZSSRBHWFDXSUKDTYQUZEUUWCNMYCCRLYDFNLFCXZTRIPVUAPSPGWATREDLCKLK | BEHQMTIJXTERFNUXGKMSOQVCHCIBFMPHLVJGPUNMJQFCKLSSQDHXVTGZZCWHVGHTMEMCNRVXCLQGYTJRTZCMWAMZZSSRBHWFDXSUKDTYQUZEUUWCNMYCCRLYDFNLFCXZTRIPVUAPSPGWATREDLCKLK | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0259 | GWOYYPJJGRKJOJLALGQNZNCIXPBOKIEGUGHEMEZBDAJUOLRPJXPLVXEPXJGYZCEBZZOLMEPC | GWOYYPJJGRKJOJLALGQNZNCIXPBOKIEGUGHEMEZBDAJUOLRPJXPLVXEPXJGYZCEBZZOLMEPC | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0144 | INUCRR | INUCRR | EUREKA | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
hist-zimmermann-001 | 13042 13401 8501 115 3528 416 17214 6491 11310 18147 18222 21560 10247 11518 23677 | 13042 13401 8501 115 3528 416 17214 6491 11310 18147 18222 21560 10247 11518 23677 | WE INTEND TO BEGIN ON THE FIRST OF FEBRUARY UNRESTRICTED SUBMARINE WARFARE | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null,
"label": "German diplomatic code 13040"
} | expert | en | 68 | 82 | cipher_museum | 0.2 | public | null | null |
cda-0020385 | AAAAA BAABA AAAAB AAAAA BAAAB AABBB AABAA ABBAA AAABA ABBAB AAABB AABAA BAAAB AAAAB BABBA BAAAA AABAA BAABB AABAA BAAAA BAAAB ABAAA ABBAA AABBA BAABA AABBB AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB ABAAA AABAB BAABA AABAA AAABB BAABA AABBB AABAA AAAAA ABABA AB... | AAAAA BAABA AAAAB AAAAA BAAAB AABBB AABAA ABBAA AAABA ABBAB AAABB AABAA BAAAB AAAAB BABBA BAAAA AABAA BAABB AABAA BAAAA BAAAB ABAAA ABBAA AABBA BAABA AABBB AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB ABAAA AABAB BAABA AABAA AAABB BAABA AABBB AABAA AAAAA ABABA AB... | ATBASH ENCODES BY REVERSING THE ALPHABET CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS PERHAPS | bacon_cipher | bacon_cipher | null | {} | hard | en | 410 | 410 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
alberti-disk-012 | XUJFEPHEYWGXQGFV | XUJFEPHEYWGXQGFV | CIPHER KEY CHANGED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 3
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
affine-v2-0232 | TNONABI RAKNAD OJLENA RON BII HRLLJOZHBGZROD DWBII EN NOHAVUGNK JDZOT GWN BUUARMNK HZUWNA KZDF | TNONABI RAKNAD OJLENA RON BII HRLLJOZHBGZROD DWBII EN NOHAVUGNK JDZOT GWN BUUARMNK HZUWNA KZDF | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 81 | 94 | cipher_museum | 2.0 | public | null | null |
purple-v2-0118 | QBWPUREOUOIKXAUBBYJRDWPDKJJBZPRFHNRLEVMCQFNMKBZFKSTMUCFZMBBBLQDHFYQEXIWLKPKFWDOEMBIUOIKRDGBGIROARLXEETZQOKOJDSUFTGTEJBTOBLBKKJZWRUWZDQTU | QBWPUREOUOIKXAUBBYJRDWPDKJJBZPRFHNRLEVMCQFNMKBZFKSTMUCFZMBBBLQDHFYQEXIWLKPKFWDOEMBIUOIKRDGBGIROARLXEETZQOKOJDSUFTGTEJBTOBLBKKJZWRUWZDQTU | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0838 | VOCEPTMXKJXXWGFODMDPNGHBAULHIOHZAGUZYUGYYQHRXIXZPFPBPJFUSJLJKGVLMDQNWXWKELVATACTT | VOCEPTMXKJXXWGFODMDPNGHBAULHIOHZAGUZYUGYYQHRXIXZPFPBPJFUSJLJKGVLMDQNWXWKELVATACTT | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0511 | YQRMGORKCRXMLW | YQRMGORKCRXMLW | SIGNAL FIRES LIT | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
purple-v3-0087 | AWMAYJTROMDIEVZEPWIEXXBAULTGQJKJBKMVMJERJRXBCRNZKFMYZJZNUMDEXZFMQJNCFLOXULKRUCEE | AWMAYJTROMDIEVZEPWIEXXBAULTGQJKJBKMVMJERJRXBCRNZKFMYZJZNUMDEXZFMQJNCFLOXULKRUCEE | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0020322 | 10.1.7 17.1.3 5.2.5 12.1.2 14.1.5 12.6.6 6.5.3 11.1.7 20.5.1 9.1.4 18.2.6 6.5.6 12.4.5 17.1.2 4.5.2 1.2.6 8.3.2 10.3.1 8.5.2 14.6.10 15.3.9 8.6.8 17.1.4 16.2.6 17.1.9 8.2.7 18.2.9 10.2.5 6.1.1 15.6.2 8.3.7 15.4.5 1.1.1 5.2.10 15.5.10 1.3.2 9.1.7 11.3.9 5.2.6 16.4.3 20.4.5 4.1.3 2.4.3 18.3.3 15.5.3 5.3.4 5.2.2 3.4.8 11.... | 10.1.7 17.1.3 5.2.5 12.1.2 14.1.5 12.6.6 6.5.3 11.1.7 20.5.1 9.1.4 18.2.6 6.5.6 12.4.5 17.1.2 4.5.2 1.2.6 8.3.2 10.3.1 8.5.2 14.6.10 15.3.9 8.6.8 17.1.4 16.2.6 17.1.9 8.2.7 18.2.9 10.2.5 6.1.1 15.6.2 8.3.7 15.4.5 1.1.1 5.2.10 15.5.10 1.3.2 9.1.7 11.3.9 5.2.6 16.4.3 20.4.5 4.1.3 2.4.3 18.3.3 15.5.3 5.3.4 5.2.2 3.4.8 11.... | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | arnold_andre | arnold_andre | null | {} | hard | en | 151 | 151 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0010705 | TIGP IXYH ONGL EUWS TVFU OOJL RRED WUIM ATIW BPMQ OQBV GNNK QQQG OVNG WMUD IUVC QNGD DZFZ MOAM Q | TIGP IXYH ONGL EUWS TVFU OOJL RRED WUIM ATIW BPMQ OQBV GNNK QQQG OVNG WMUD IUVC QNGD DZFZ MOAM Q | THE MESSAGE WAS HIDDEN BUT NOT SECURE HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | trithemius | trithemius | null | {} | medium | en | 77 | 77 | synthetic_educational | null | null | [] | |
cardano-autokey-v3-0308 | ZUYMNHYPVKNGIGFDDGWHWAHTPAWZVIFODCVHBYJYCEQFULVTZHHAHTFMXFUNZUDPKJDAGCNNTMALWSMQXBUQAETWEAHTBBLZVIFOEFGQAQEUHVDZVJSLWLWPAPAUCTXKUFZKCLTUBTVRTBDZHHJNVRWEAFRLOXNR | ZUYMNHYPVKNGIGFDDGWHWAHTPAWZVIFODCVHBYJYCEQFULVTZHHAHTFMXFUNZUDPKJDAGCNNTMALWSMQXBUQAETWEAHTBBLZVIFOEFGQAQEUHVDZVJSLWLWPAPAUCTXKUFZKCLTUBTVRTBDZHHJNVRWEAFRLOXNR | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0186 | DADWMKDPAKAMQVVBUSTPBPRARALHAKFAMPWLTPHAHGMKOPHJQBPRBRATUHFUJPHJPLHRFQRSHDVQXRJV | DADWMKDPAKAMQVVBUSTPBPRARALHAKFAMPWLTPHAHGMKOPHJQBPRBRATUHFUJPHJPLHRFQRSHDVQXRJV | 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": "FORTRESS"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
porta-v2-0526 | SNBQSXWLVWGLKLTM | SNBQSXWLVWGLKLTM | DIVIDE AND CONQUER | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "FLORENT"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0020306 | 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 6 1 9 12 3 12 15 19 5 4 9 19 1 16 15 19 20 21 18 5 14 15 20 1 19 12 15 7 1 14 20 8 5 6 18 9 5 4 13 1 14 20 5 19 20 21 19 5 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 20... | 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 6 1 9 12 3 12 15 19 5 4 9 19 1 16 15 19 20 21 18 5 14 15 20 1 19 12 15 7 1 14 20 8 5 6 18 9 5 4 13 1 14 20 5 19 20 21 19 5 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 20... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS FAIL CLOSED IS A POSTURE NOT A SLOGAN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 205 | 205 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
chinese-telegraph-v2-0167 | 7194 7911 7911 8603 7654 7194 8603 7590 7911 7720 8603 8603 7467 8437 8528 7720 8528 8038 8100 8603 7590 8100 7911 7401 8100 7529 8603 7467 8038 7654 7194 8781 7467 9003 8100 8685 7654 7467 7194 8437 7401 8603 7654 7194 8603 8603 8100 7911 7401 | 7194 7911 7911 8603 7654 7194 8603 7590 7911 7720 8603 8603 7467 8437 8528 7720 8528 8038 8100 8603 7590 8100 7911 7401 8100 7529 8603 7467 8038 7654 7194 8781 7467 9003 8100 8685 7654 7467 7194 8437 7401 8603 7654 7194 8603 8603 8100 7911 7401 | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 196 | 244 | cipher_museum | 2.0 | public | null | null |
cda-0019578 | THAN ZIEL INDZ EHAK EHDI GLIN ITKI NAHJ AHDZ EHTS AHDZ EHGA HDZE HMOA SITK INCL AGIA IHLI NDZE HGAH NODA IHDI BEHD ZEHD IBEH WOLL ACHE EGAH DZEH CLAG IAIH DZEH WOLL ACHE ETHA NZIE TKIN TSAH AHJA HKLI ZZIE DZEH TSAH ASZI HGLO EIHA KHAG AHBE SHUS HGAH | THAN ZIEL INDZ EHAK EHDI GLIN ITKI NAHJ AHDZ EHTS AHDZ EHGA HDZE HMOA SITK INCL AGIA IHLI NDZE HGAH NODA IHDI BEHD ZEHD IBEH WOLL ACHE EGAH DZEH CLAG IAIH DZEH WOLL ACHE ETHA NZIE TKIN TSAH AHJA HKLI ZZIE DZEH TSAH ASZI HGLO EIHA KHAG AHBE SHUS HGAH | THE VIGENERE CIPHER USES A REPEATING KEYWORD BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | navajo_code | navajo_code | null | {} | hard | en | 200 | 200 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
playfair-373 | CNYMUANKFMTOVRTFHWAUSFAMONEMKCTUOTPILIALYE | CNYMUANKFMTOVRTFHWAUSFAMONEMKCTUOTPILIALYE | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-008 | TAXPBAEUFUAZ | TAXPBAEUFUAZ | HOLD POSITION | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
diana-v3-0261 | XHRHAFRVTYLRBIXPLEAGLVLAFGOTQLSZRITJRBNKEAMHNBQFYAFQABXMKCNPMADSXOFTTXWBB | XHRHAFRVTYLRBIXPLEAGLVLAFGOTQLSZRITJRBNKEAMHNBQFYAFQABXMKCNPMADSXOFTTXWBB | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
enigma-033 | OPCMCIXRTUEPDBBCKZGJDPQGXFIKCMZOTXRY | OPCMCIXRTUEPDBBCKZGJDPQGXFIKCMZOTXRY | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAA"
} | expert | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
stager-route-003 | TELAAEDNSEAHEGHLDX | TELAAEDNSEAHEGHLDX | THE EAGLE HAS LANDED | stager_route | stager_route | transposition | {
"type": "integer",
"value": 3
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0012086 | ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X K r· L ┐· └ ⌐ ⌒· ⌐· ⌐ Γ· ┌· r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X ┐· ⌐ Γ· ┌· X ┘· ⌐· └ L K K L ┌· X X Γ· ┌ X· └ K ⌐ ─ L ┘· X· X └ ⌒· | ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X K r· L ┐· └ ⌐ ⌒· ⌐· ⌐ Γ· ┌· r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X ┐· ⌐ Γ· ┌· X ┘· ⌐· └ L K K L ┌· X X Γ· ┌ X· └ K ⌐ ─ L ┘· X· X └ ⌒· | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | pigpen | pigpen | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
hist-culper-001 | 998 711 807 582 690 807 174 | 998 711 807 582 690 807 174 | AGENT YANKEE WILL MEET CULPER AT BREWSTER | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null,
"label": "Tallmadge 1779 codebook"
} | expert | en | 21 | 27 | cipher_museum | 0.2 | public | null | null |
cda-0017346 | flank right enter quiet unite enter north cover young after north again light yield shore inner scout cause again needs range extra vital extra array | flank right enter quiet unite enter north cover young after north again light yield shore inner scout cause again needs range extra vital extra array | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | 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. |
fialka-v2-0004 | KFZTSDKNDQXKJA | KFZTSDKNDQXKJA | STORM THE BREACH | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
red-type-a-105 | YNYSELAKOATHOLESPAJITFHPAYSWLOVYTSYIRQYMVAHGOR | YNYSELAKOATHOLESPAJITFHPAYSWLOVYTSYIRQYMVAHGOR | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0019650 | SMGSJ RZDZT XLVWN QORDV ROIWG LOLUB JJVVQ XZTRC WMMLT RFGHQ YVJML GTFYI EPRRL JMDFE AZAUR MFAUH QTESM EZQLK YIBXA UUABO QEMUP ENANX RPPWW LSWBG JFRDS RBCSZ ZQYOF OIMLK VQRSJ WUUOS NASOW EUGOP NTFVE | SMGSJ RZDZT XLVWN QORDV ROIWG LOLUB JJVVQ XZTRC WMMLT RFGHQ YVJML GTFYI EPRRL JMDFE AZAUR MFAUH QTESM EZQLK YIBXA UUABO QEMUP ENANX RPPWW LSWBG JFRDS RBCSZ ZQYOF OIMLK VQRSJ WUUOS NASOW EUGOP NTFVE | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | vernam | vernam | null | {} | hard | en | 165 | 165 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
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