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-0021352 | UVEUTDXIZKRBDOTZIJKOIFJFWGHUNDFOXJEUHNIKWFEHUWWJUTXXXMSNRHUONECCBXWEANRKJJPAMELAIYEKS | UVEUTDXIZKRBDOTZIJKOIFJFWGHUNDFOXJEUHNIKWFEHUWWJUTXXXMSNRHUONECCBXWEANRKJJPAMELAIYEKS | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | one_time_pad | one_time_pad | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
fialka-002 | OJZOMKRGJG | OJZOMKRGJG | FLEE AT ONCE | fialka | fialka | machine | {
"type": "seed",
"value": "M125"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
adfgvx-v3-0377 | DDAFGDGADFAVGGVVAFFFGFGVGAAAGFVXGGDAGXGFGDDAFADGFDVAADDAGDADFDDFVGFDAAFADAFAVDDAFAFDVDDDDDGGDDAAADXGFAAGAAGAFGGAFDDFGAGFDDGAGDGFDFDGVFAFAAADADGVADAXAF | DDAFGDGADFAVGGVVAFFFGFGVGAAAGFVXGGDAGXGFGDDAFADGFDVAADDAGDADFDDFVGFDAAFADAFAVDDAFAFDVDDDDDGGDDAAADXGFAAGAAGAFGGAFDDFGAGFDDGAGDGFDFDGVFAFAAADADGVADAXAF | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
cda-0005134 | NNTPRDOOONYEROTTACTTUIULNNHTOIEHAPOTTWIRCONBHWAYDXENECTETTESSTPEEXFIIIRLENXOEARKLXHKCIHXIIHUEUTXWTFXSOEXUYTRTSXSSBHAINTESPETOPTHTGECSSTIEEFAUTNRINRSIO | NNTPRDOOONYEROTTACTTUIULNNHTOIEHAPOTTWIRCONBHWAYDXENECTETTESSTPEEXFIIIRLENXOEARKLXHKCIHXIIHUEUTXWTFXSOEXUYTRTSXSSBHAINTESPETOPTHTGECSSTIEEFAUTNRINRSIO | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "PALACE"
} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
cda-0013513 | SHAL QOKA LOTA INKA IIIN LKAI INOT EDYC HEDA LCHE OLDA LKAI IINO TAIN CTAI INSH ALLK AIIN YTED YOTA IINS HAII NCHE DALO TEDY OTED YRAI INSH ALDA IINQ OTED YSHA IINC HEDY DARA LDAL SHAI INDA INYQ OTED YOKE EDYQ OTED Y | SHAL QOKA LOTA INKA IIIN LKAI INOT EDYC HEDA LCHE OLDA LKAI IINO TAIN CTAI INSH ALLK AIIN YTED YOTA IINS HAII NCHE DALO TEDY OTED YRAI INSH ALDA IINQ OTED YSHA IINC HEDY DARA LDAL SHAI INDA INYQ OTED YOKE EDYQ OTED Y | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | voynich_render | voynich_render | null | {} | hard | en | 173 | 173 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
wheatstone-002 | SFTTWQJIET | SFTTWQJIET | FLEE AT ONCE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "WHEATSTONE"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0282 | TEELOHZKSTGQLQLTHLLKHABDFOLKKOCORLKNBUETLYKTSLQBXFUNSGMCLUFSBTLRLTHL | TEELOHZKSTGQLQLTHLLKHABDFOLKKOCORLKNBUETLYKTSLQBXFUNSGMCLUFSBTLRLTHL | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-1103 | SDR LEMDRP OEQG WVQ EJURJSRO AY HRKJ AVSSEQSV VHARPSE V PRJVEQQVJLR VPLDESRLS VJO CPRVS DTIVJEQS | SDR LEMDRP OEQG WVQ EJURJSRO AY HRKJ AVSSEQSV VHARPSE V PRJVEQQVJLR VPLDESRLS VJO CPRVS DTIVJEQS | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 82 | 96 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0176 | VYOVIEHTTFTFBHGMWHMHAUEOOOEOELTLOVROEOETVTSDEITISOAHOSOLTFTELNRLIODEL | VYOVIEHTTFTFBHGMWHMHAUEOOOEOELTLOVROEOETVTSDEITISOAHOSOLTFTELNRLIODEL | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-179 | RFCYPRMDUYPGQMDTGRYJGKNMPRYLACRMRFCQRYRCGRGQYKYRRCPMDJGDCYLBBCYRFYPMYBCGRFCPRMQYDCRWMPRMPSGLFCLACGRGQYQSZHCARMDGLOSGPWUFGAFAYLMLLMYAAMSLRZCLCEJCARCB | RFCYPRMDUYPGQMDTGRYJGKNMPRYLACRMRFCQRYRCGRGQYKYRRCPMDJGDCYLBBCYRFYPMYBCGRFCPRMQYDCRWMPRMPSGLFCLACGRGQYQSZHCARMDGLOSGPWUFGAFAYLMLLMYAAMSLRZCLCEJCARCB | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "KOREA"
} | beginner | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
cda-0006959 | GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA | GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN A STRONG CLAIM NEEDS STRONG EVIDENCE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER FAIL CLOSED IS A POSTURE NOT A SLOGAN | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 155 | 155 | synthetic_educational | null | null | [] | |
bifid-de-033 | DPSPAXUPAUGLHWIXGLYQAGIAAXTBVERBVKSFNCSESFBRLYZV | DPSPAXUPAUGLHWIXGLYQAGIAAXTBVERBVKSFNCSESFBRLYZV | DAS IST NICHT NUR NICHT RICHTIG ES IST NICHT EINMAL FALSCH | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | de | 48 | 48 | cipher_museum | 0.2 | public | null | null |
m94-v3-0005 | QDTVWJTCRBXLWFMP | QDTVWJTCRBXLWFMP | SOUND THE TRUMPETS | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0126 | QSMODMBPNWALCKSGEWJBTEUDZCVIAHYVAINSHZAFIJLYGYIFTKAWZFRNBKHJWQFMUQRABEPNTWTKIWEJQZEDPRGHXILDHECROVQBYHUDRQMWBPLCPLLVYJZKPYDGQHLYQAXVPBKQOBLFNTLMKJBOZRVTBCVSUYJUHZPAAVCBWHIJNDLLKSH | QSMODMBPNWALCKSGEWJBTEUDZCVIAHYVAINSHZAFIJLYGYIFTKAWZFRNBKHJWQFMUQRABEPNTWTKIWEJQZEDPRGHXILDHECROVQBYHUDRQMWBPLCPLLVYJZKPYDGQHLYQAXVPBKQOBLFNTLMKJBOZRVTBCVSUYJUHZPAAVCBWHIJNDLLKSH | 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 | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
hill-093 | AJCCUZZZTSFQAUVOXSVGBMZPAMBMZPDTOMWF | AJCCUZZZTSFQAUVOXSVGBMZPAMBMZPDTOMWF | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 7
} | advanced | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
cda-0021655 | ⟨w10⟩ ⟨a11⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w08⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨a11⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨a07⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨w32⟩ ⟨a01⟩ ⟨a23⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a... | ⟨w10⟩ ⟨a11⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w08⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨a11⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨a07⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨w32⟩ ⟨a01⟩ ⟨a23⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | babington | babington | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0005570 | ATTIEPYENSIOFOIPSSDCTLYOHSIRSESASETOTUPEPSGAONTTNERTAGAEIPHETUYALALIXIAMEENTLSSETHSBERRECWTEITIRORRCSEHNILHGYURLTOSEDDPXTCOEFROPEEVUHRCKNHQACRYMMTELBEFPNAREHTEANIHEEAUI | ATTIEPYENSIOFOIPSSDCTLYOHSIRSESASETOTUPEPSGAONTTNERTAGAEIPHETUYALALIXIAMEENTLSSETHSBERRECWTEITIRORRCSEHNILHGYURLTOSEDDPXTCOEFROPEEVUHRCKNHQACRYMMTELBEFPNAREHTEANIHEEAUI | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY TOMORROW | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | hard | en | 168 | 168 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
atbash-v2-0005 | XZEZOIB ZWEZMXVH | XZEZOIB ZWEZMXVH | CAVALRY ADVANCES | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 15 | 16 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0074 | CKRLMVSIJKWSYRGHQDPDDKLPFRVHTUCKRLMVGHSSOWZPPUJKVIDKCYDUNDUKANBKYSUQFLBU | CKRLMVSIJKWSYRGHQDPDDKLPFRVHTUCKRLMVGHSSOWZPPUJKVIDKCYDUNDUKANBKYSUQFLBU | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
porta-v2-0007 | MVNIPUYVKWDUOG | MVNIPUYVKWDUOG | SIGNAL FIRES LIT | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0017411 | CLA-GI-AIH / NO-DA-IH / SHUSH / DIBEH-YAZZIE / TKIN / MOASI / TKIN / TSAH / MA-E / GAH / WOL-LA-CHEE / DIBEH / THAN-ZIE / GAH / NO-DA-IH / MOASI / THAN-ZIE / NO-DA-IH / GAH / DZEH / BE / DZEH / DIBEH / DZEH / GAH / A-KEH... | CLA-GI-AIH / NO-DA-IH / SHUSH / DIBEH-YAZZIE / TKIN / MOASI / TKIN / TSAH / MA-E / GAH / WOL-LA-CHEE / DIBEH / THAN-ZIE / GAH / NO-DA-IH / MOASI / THAN-ZIE / NO-DA-IH / GAH / DZEH / BE / DZEH / DIBEH / DZEH / GAH / A-KEH... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | navajo_code | navajo_code | null | {} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0021984 | GSVR MWVC LUXL RMXR WVMX VRHZ FHVU FOXO FVGS VUIR VWNZ MGVH GFHV HGSV RMWV CLUX LRMX RWVM XVGL VHGR NZGV PVBO VMTG SRMW VCLU XLRM XRWV MXVN VZHF IVHO VGGV IUIV JFVM XBWR HGIR YFGR LMWR UURV ZMWS VOON ZMRM GILW FXVW KFYO RXPV BXIB KGLT IZKS BRMM RMVG VVMH VEVM GBHR C | GSVR MWVC LUXL RMXR WVMX VRHZ FHVU FOXO FVGS VUIR VWNZ MGVH GFHV HGSV RMWV CLUX LRMX RWVM XVGL VHGR NZGV PVBO VMTG SRMW VCLU XLRM XRWV MXVN VZHF IVHO VGGV IUIV JFVM XBWR HGIR YFGR LMWR UURV ZMWS VOON ZMRM GILW FXVW KFYO RXPV BXIB KGLT IZKS BRMM RMVG VVMH VEVM GBHR C | THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | atbash | atbash | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0019029 | ZSCALPIXJFRFLRFTTEXWRQSLWEAPKHJZGGTXSWXVQGFRIOSSQAICSXWLVIOWNNURVLELFHTVFSGJRKVLCTYMMMPFONERQDRRWSSBQIGWQGDINASAEOHWDCWABJKWDLWEICHVFOYFCCKZWVSBCFMMWTVNXWSZLFBCEICCRLWWSIHKIKACSALGLFPWRUWBFCWNWIESQGHFWMXXAMDJPEFQ | ZSCALPIXJFRFLRFTTEXWRQSLWEAPKHJZGGTXSWXVQGFRIOSSQAICSXWLVIOWNNURVLELFHTVFSGJRKVLCTYMMMPFONERQDRRWSSBQIGWQGDINASAEOHWDCWABJKWDLWEICHVFOYFCCKZWVSBCFMMWTVNXWSZLFBCEICCRLWWSIHKIKACSALGLFPWRUWBFCWNWIESQGHFWMXXAMDJPEFQ | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY SLOWLY | running_key | running_key | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
adfgvx-v3-0432 | ADAGGFDXGDVDDAFAFXVDXDGDXVVDAAGDAA | ADAGGFDXGDVDDAFAFXVDXDGDXVVDAAGDAA | ARCHERS TO THE WALLS | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0024 | IHPWKRWPWSQGKCK | IHPWKRWPWSQGKCK | THE WIND IS WITH US | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0103 | DROORZN UIRVWNZM DSL YILPV GSV QZKZMVHV KFIKOV XRKSVI NZXSRMV YVULIV GSV HVXLMW DLIOW DZI ZOHL XLRMVW GSV GVIN XIBKGZMZOBHRH ZMW HKVMG SRH XZIVVI ZG GSV HRTMZOH RMGVOORTVMXV HVIERXV YFROWRMT ZNVIRXZM XLWVYIVZPRMT | DROORZN UIRVWNZM DSL YILPV GSV QZKZMVHV KFIKOV XRKSVI NZXSRMV YVULIV GSV HVXLMW DLIOW DZI ZOHL XLRMVW GSV GVIN XIBKGZMZOBHRH ZMW HKVMG SRH XZIVVI ZG GSV HRTMZOH RMGVOORTVMXV HVIERXV YFROWRMT ZNVIRXZM XLWVYIVZPRMT | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 182 | 212 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0074 | RFERRSUPBNBETRSCUDQIINEQGNNBPGVJVVZCLLOXPTVFJXHDCEREAMNZMYNHNDVWEGFTDXLAWJQKR | RFERRSUPBNBETRSCUDQIINEQGNNBPGVJVVZCLLOXPTVFJXHDCEREAMNZMYNHNDVWEGFTDXLAWJQKR | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1163 | EPIXTCRT QGXCVH KXRIDGN | EPIXTCRT QGXCVH KXRIDGN | PATIENCE BRINGS VICTORY | caesar | caesar | substitution | {
"type": "shift",
"value": 15
} | beginner | en | 21 | 23 | cipher_museum | 2.0 | public | null | null |
scytale-vg-0020 | NIENIATLHLECRRHEEAITGIHOTNNWOIRLDLEBPETAHBNLOERTAONSYETPHAIRNAGTEELUSSEX | NIENIATLHLECRRHEEAITGIHOTNNWOIRLDLEBPETAHBNLOERTAONSYETPHAIRNAGTEELUSSEX | NEITHER HEIGHT NOR DEPTH NOR ANYTHING ELSE IN ALL CREATION WILL BE ABLE TO SEPARATE US | scytale | scytale | transposition | {
"type": "integer",
"value": 2
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0157 | MMJVGTWGPTTOFDGXMMNBXWPREXYBBPWFJDECAPUJKPFEQOVPAOXTWHJJCTAFFYYIIKELNAMHH | MMJVGTWGPTTOFDGXMMNBXWPREXYBBPWFJDECAPUJKPFEQOVPAOXTWHJJCTAFFYYIIKELNAMHH | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
autokey-286 | JBCXECTFYRFFGVZEABWEMWNESOLJFGHVYIXBKVYXZUWCLZOMMWJGHMPWF | JBCXECTFYRFFGVZEABWEMWNESOLJFGHVYIXBKVYXZUWCLZOMMWJGHMPWF | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v3-0356 | YRHZUQLWGFGYCPERD | YRHZUQLWGFGYCPERD | THE RAILWAY ARRIVES | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0367 | SFKAAAKHIRITFHBAKQMFDDSBDDSIQBKBTFCIFBAHPKWVMCRXRQWLGZRQUVKGFXILKLQZHBGWSKOXBBBS | SFKAAAKHIRITFHBAKQMFDDSBDDSIQBKBTFCIFBAHPKWVMCRXRQWLGZRQUVKGFXILKLQZHBGWSKOXBBBS | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0213 | E5 G3 B6 E6 Y6 Z3 Z4 O3 O4 K4 E8 L2 N4 Q3 L8 D4 O7 M7 L2 E9 N9 G5 G0 G7 P3 G6 N8 I1 Z3 O3 G5 Q2 B7 G7 O0 I1 U4 P3 I1 A3 A2 W1 A4 Q2 E1 D8 E0 N6 Y8 L1 N9 Q3 A3 S7 K8 B6 O4 N9 C0 H1 Q3 R0 E8 V8 O2 S8 O5 P0 X6 K8 G6 V8 M4 N2 L2 P7 | E5 G3 B6 E6 Y6 Z3 Z4 O3 O4 K4 E8 L2 N4 Q3 L8 D4 O7 M7 L2 E9 N9 G5 G0 G7 P3 G6 N8 I1 Z3 O3 G5 Q2 B7 G7 O0 I1 U4 P3 I1 A3 A2 W1 A4 Q2 E1 D8 E0 N6 Y8 L1 N9 Q3 A3 S7 K8 B6 O4 N9 C0 H1 Q3 R0 E8 V8 O2 S8 O5 P0 X6 K8 G6 V8 M4 N2 L2 P7 | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 152 | 227 | cipher_museum | 2.0 | public | null | null |
typex-v3-0108 | ONKHTALZQWIQCJAMTPMO | ONKHTALZQWIQCJAMTPMO | THE LEGIONS STAND READY | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0013999 | AAABB ABAAA AABBA BAAAA AAAAA ABBBA AABBB AAAAA ABBAA AAABB BAABA BAAAA ABAAA AABBA BAAAA AAAAA ABBBA AABBB AABAB BAAAA AABAA ABBBB BAABB AABAA ABBAA AAABA ABAAA AABAA BAAAB AABAA BABAB ABBBA ABBAB BAAAB AABAA BAAAB ABAAA ABABB ABBBA ABABA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB ABABB ABBAB AAABB AABAA BAAAA AB... | AAABB ABAAA AABBA BAAAA AAAAA ABBBA AABBB AAAAA ABBAA AAABB BAABA BAAAA ABAAA AABBA BAAAA AAAAA ABBBA AABBB AABAB BAAAA AABAA ABBBB BAABB AABAA ABBAA AAABA ABAAA AABAA BAAAB AABAA BABAB ABBBA ABBAB BAAAB AABAA BAAAB ABAAA ABABB ABBBA ABABA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB ABABB ABBAB AAABB AABAA BAAAA AB... | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE MESSAGE WAS HIDDEN BUT NOT SECURE | bacon_cipher | bacon_cipher | null | {} | hard | en | 845 | 845 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
scytale-v3-0328 | ACESOHWLSXXRHRTTEALXXX | ACESOHWLSXXRHRTTEALXXX | ARCHERS TO THE WALLS | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
noisy-vigenere-ocr_heavy-036 | DOUPHTKXWLVTQUQPRVUIEVPPDQJ2WHWIGLAZVPUYETVQDUEKKWCM5ICLSLHJGKJYMKA | DOUPHTKXWLVTQUQPRVUIEVPPDQJ2WHWIGLAZVPUYETVQDUEKKWCM5ICLSLHJGKJYMKA | BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH FRACTIONATION FOR ADDED SECURITY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 67 | 67 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0177 | YHOIDCQM IXU KXEELQ CSY KCYOLU IXZL LQWLYLM WIL OHWR YLUHUWXQOL HU LQMLM HQKCYD WIL BYLUHMLQW | YHOIDCQM IXU KXEELQ CSY KCYOLU IXZL LQWLYLM WIL OHWR YLUHUWXQOL HU LQMLM HQKCYD WIL BYLUHMLQW | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 79 | 93 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0717 | ARDNMLOATMGHHLIGWATMTHAMEIANOENTBTENARNNGRLBHEAGECMETADCUETCENIAXUNOHIBOKRIPCX | ARDNMLOATMGHHLIGWATMTHAMEIANOENTBTENARNNGRLBHEAGECMETADCUETCENIAXUNOHIBOKRIPCX | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0904 | OGMKTLDURMEPNGIKTULTCTFATNGSPLNLCGYNCPDCANDFBMOINGPLGSPLCYCGGQMDBILQTULNTPCV | OGMKTLDURMEPNGIKTULTCTFATNGSPLNLCGYNCPDCANDFBMOINGPLGSPLCYCGGQMDBILQTULNTPCV | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
vic-v2-0402 | 18380825486382689068585286491104180289826922286902123908228083909512898389906868028389286323838604159082287128983328690 | 18380825486382689068585286491104180289826922286902123908228083909512898389906868028389286323838604159082287128983328690 | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 119 | 119 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0209 | 60 15 18 01 03 12 05 08 01 19 19 16 15 11 05 14 | 60 15 18 01 03 12 05 08 01 19 19 16 15 11 05 14 | THE ORACLE HAS SPOKEN | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
cda-0014401 | 5.6.9 8.2.7 19.3.7 4.3.5 7.6.3 6.6.2 9.2.10 9.6.1 10.1.2 1.6.7 13.5.3 17.6.3 11.1.10 13.5.7 20.1.2 20.2.7 14.4.9 9.4.7 8.1.7 19.1.2 2.6.2 17.3.7 1.6.9 9.2.7 20.4.10 5.1.3 14.3.3 10.2.9 5.4.10 6.3.7 8.5.3 7.3.8 10.4.9 6.3.1 16.6.3 6.2.8 17.2.7 17.3.2 7.6.5 19.6.5 6.3.5 12.4.8 15.2.7 10.1.5 18.4.5 1.1.1 17.3.1 16.2.9 13.... | 5.6.9 8.2.7 19.3.7 4.3.5 7.6.3 6.6.2 9.2.10 9.6.1 10.1.2 1.6.7 13.5.3 17.6.3 11.1.10 13.5.7 20.1.2 20.2.7 14.4.9 9.4.7 8.1.7 19.1.2 2.6.2 17.3.7 1.6.9 9.2.7 20.4.10 5.1.3 14.3.3 10.2.9 5.4.10 6.3.7 8.5.3 7.3.8 10.4.9 6.3.1 16.6.3 6.2.8 17.2.7 17.3.2 7.6.5 19.6.5 6.3.5 12.4.8 15.2.7 10.1.5 18.4.5 1.1.1 17.3.1 16.2.9 13.... | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | arnold_andre | arnold_andre | null | {} | hard | en | 101 | 101 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
joseon-yeokhak-v2-0009 | BPMPIZJWZQAKTMIZ | BPMPIZJWZQAKTMIZ | THE HARBOR IS CLEAR | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0021180 | 5 18 18 15 18 3 15 18 18 5 3 20 9 15 14 1 14 4 4 5 20 5 3 20 9 15 14 1 18 5 6 21 14 4 1 13 5 14 20 1 12 20 15 19 5 3 21 18 5 19 25 19 20 5 13 19 | 5 18 18 15 18 3 15 18 18 5 3 20 9 15 14 1 14 4 4 5 20 5 3 20 9 15 14 1 18 5 6 21 14 4 1 13 5 14 20 1 12 20 15 19 5 3 21 18 5 19 25 19 20 5 13 19 | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 56 | 56 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
playfair-v2-0418 | LOAFREIKLOOLOFOVTDLRCYRCAFBKBCXIPTSTAFCEBCLDPHSTTCEMQLQZPZDPWNPOAFLKCDIQMTCEBQ | LOAFREIKLOOLOFOVTDLRCYRCAFBKBCXIPTSTAFCEBCLDPHSTTCEMQLQZPZDPWNPOAFLKCDIQMTCEBQ | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
arnold-andre-v3-0010 | 13.1.1 14.4.1 14.1.5 14.4.3 15.1.1 13.1.1 14.1.1 14.4.4 14.4.1 14.1.5 14.4.3 14.1.1 15.1.1 13.1.1 14.1.1 14.1.4 15.1.1 13.1.1 14.1.1 14.4.4 14.4.5 14.4.3 14.1.1 15.1.1 | 13.1.1 14.4.1 14.1.5 14.4.3 15.1.1 13.1.1 14.1.1 14.4.4 14.4.1 14.1.5 14.4.3 14.1.1 15.1.1 13.1.1 14.1.1 14.1.4 15.1.1 13.1.1 14.1.1 14.4.4 14.4.5 14.4.3 14.1.1 15.1.1 | PER ASPERA AD ASTRA | arnold_andre | arnold_andre | codebook | {
"type": "none",
"value": null
} | expert | en | 144 | 167 | cipher_museum | 2.0 | public | null | null |
porta-267 | BWQIKVBNDGPM | BWQIKVBNDGPM | THE TRAP IS SET | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
adfgvx-v3-0422 | GDAFDFDVVVGFAGDDAXDGDFVDXFXDAAFA | GDAFDFDVVVGFAGDDAXDGDFVDXFXDAAFA | THE GATES HOLD FIRM | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0261 | EOMHWKBTKOLMRNIFFCA+GPHPQRSEHPKQ++SM++KOYFHKS+K+YSGBURRGEMIUAHBKIBRVBQLRG | EOMHWKBTKOLMRNIFFCA+GPHPQRSEHPKQ++SM++KOYFHKS+K+YSGBURRGEMIUAHBKIBRVBQLRG | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0006924 | GUS OEQNNGSQGHES FVBHYR ZNNS ZWFHFS VOERSE O ZBRSY POA NYOFFWTL COGGSEAF PHG WG NOA OYFB PS JEBAU GEOAFCBFWGNBA QVCNSEF EROEENAUR YSGGSEF JVGUBHG FHPFGWGHGNBA GBROL | GUS OEQNNGSQGHES FVBHYR ZNNS ZWFHFS VOERSE O ZBRSY POA NYOFFWTL COGGSEAF PHG WG NOA OYFB PS JEBAU GEOAFCBFWGNBA QVCNSEF EROEENAUR YSGGSEF JVGUBHG FHPFGWGHGNBA GBROL | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION TODAY | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 141 | 141 | synthetic_educational | null | null | [] | |
caesar-vj-0125 | RFC JMPB PCGELQ DMPCTCP | RFC JMPB PCGELQ DMPCTCP | THE LORD REIGNS FOREVER | caesar | caesar | substitution | {
"type": "shift",
"value": 24
} | beginner | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0006973 | TAUE WPRS ACTM HAHH CTEE DCAB CSTS RHIT TTUE DKEL SPUM MIAT AREI SRSS TRIU IAWE LAAM SBLA GEEL YRCK HESE YDMC CXTS SDHE ICEA BIOE OTIX NNUP EROD UTLS RHNU HSUA EESD NERT RTEN NPHS MOIR CBOR HEWT AEOH OT | TAUE WPRS ACTM HAHH CTEE DCAB CSTS RHIT TTUE DKEL SPUM MIAT AREI SRSS TRIU IAWE LAAM SBLA GEEL YRCK HESE YDMC CXTS SDHE ICEA BIOE OTIX NNUP EROD UTLS RHNU HSUA EESD NERT RTEN NPHS MOIR CBOR HEWT AEOH OT | THE MESSAGE WAS HIDDEN BUT NOT SECURE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "SIGNAL"
} | hard | en | 162 | 162 | synthetic_educational | null | null | [] | |
sigaba-v2-0266 | BTDLONMKQVAEDA | BTDLONMKQVAEDA | PRESS THE ATTACK | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0016396 | WOLL ACHE ETHA NZIE SHUS HWOL LACH EEDI BEHL INDZ EHTS AHMO ASIA KHAB EDZE HDIB EHSH USHT SAHA SZIH GAHD ZEHA KEHD IGLI NIDZ EHGA HDIB EHTK INTS AHAH JAHT HANZ IELI NDZE HWOL LACH EEDI BEHY AZZI ECLA GIAI HLIN WOLL ACHE ESHU SHDZ EHTH ANZI EMAE WOLL ACHE ETKI NDIB EHYA ZZIE MOAS I | WOLL ACHE ETHA NZIE SHUS HWOL LACH EEDI BEHL INDZ EHTS AHMO ASIA KHAB EDZE HDIB EHSH USHT SAHA SZIH GAHD ZEHA KEHD IGLI NIDZ EHGA HDIB EHTK INTS AHAH JAHT HANZ IELI NDZE HWOL LACH EEDI BEHY AZZI ECLA GIAI HLIN WOLL ACHE ESHU SHDZ EHTH ANZI EMAE WOLL ACHE ETKI NDIB EHYA ZZIE MOAS I | ATBASH ENCODES BY REVERSING THE ALPHABET FAIL CLOSED IS A POSTURE NOT A SLOGAN | navajo_code | navajo_code | null | {} | hard | en | 225 | 225 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
copiale-v2-0091 | B1 L1 R8 A6 O5 B0 K7 C9 O4 N2 S3 K8 I8 C4 Q6 U6 S3 L5 T1 C4 O5 I6 R1 A4 P2 L0 P2 M9 M8 A9 C0 P6 Z1 T1 K3 O6 B5 R5 I8 P2 I1 V4 K4 U4 K3 T9 T4 R1 C1 N2 O2 B0 L0 Q6 C2 K0 M9 K0 X0 X7 C2 O4 I3 J9 U6 B2 A3 Y6 Q8 A5 M5 R7 O4 N7 Q7 X0 H7 Z1 B7 M5 | B1 L1 R8 A6 O5 B0 K7 C9 O4 N2 S3 K8 I8 C4 Q6 U6 S3 L5 T1 C4 O5 I6 R1 A4 P2 L0 P2 M9 M8 A9 C0 P6 Z1 T1 K3 O6 B5 R5 I8 P2 I1 V4 K4 U4 K3 T9 T4 R1 C1 N2 O2 B0 L0 Q6 C2 K0 M9 K0 X0 X7 C2 O4 I3 J9 U6 B2 A3 Y6 Q8 A5 M5 R7 O4 N7 Q7 X0 H7 Z1 B7 M5 | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 160 | 239 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0250 | HIZBXRXSBLUTTL | HIZBXRXSBLUTTL | COVER MY RETREAT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0600 | TBORKNAYRZGFYKSBZRXSFFGDDNZFTUBDUAIQFGDTQXTBYVCVQAAGUEBGRPMOCLEHYJNWJMOUYWEAGKYFMP | TBORKNAYRZGFYKSBZRXSFFGDDNZFTUBDUAIQFGDTQXTBYVCVQAAGUEBGRPMOCLEHYJNWJMOUYWEAGKYFMP | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0415 | SAQHAKTEBLCDP | SAQHAKTEBLCDP | THE APPLE FALLS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0381 | ZHZQXDEWTFX | ZHZQXDEWTFX | HOLD THE LINE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
cda-0016919 | KWMUZVBTAYUXDZMKAOEEITLKLWTGYIFCRFXREKGDG | KWMUZVBTAYUXDZMKAOEEITLKLWTGYIFCRFXREKGDG | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | running_key | running_key | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0011757 | LTDH WXZT NHED TBYN TIJH NWCB FLBN FILN TBVO SWEC FGCF Z | LTDH WXZT NHED TBYN TIJH NWCB FLBN FILN TBVO SWEC FGCF Z | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | monoalphabetic | monoalphabetic | null | {
"alphabet": "NPLIBVZECQGSRFXHUTJWOKYMDA"
} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
geheimschreiber-v2-0089 | VAJNHUSWGHEIHBXSTYNYEOXIKSNCRUDUNWBAKLFRTYPGWNIIZWTYTKDIEWDRHEMVPXHFUXCLRISIEVRG | VAJNHUSWGHEIHBXSTYNYEOXIKSNCRUDUNWBAKLFRTYPGWNIIZWTYTKDIEWDRHEMVPXHFUXCLRISIEVRG | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0123 | GLYMTIYVQLVZ JUVZQ YVDA OCVBZ CVMLVZ JCV COQCPLV JCIVQG XUXLQLLX LUHGQLLX QGL OCVBZ KUEE YQQYOW YQ SLVC GCIV KUQG YEE YRYUEYPEL JCVOLZ QGL CPFLOQURL UZ QGL VUMHL CRLVECCWUXH QGL YVHCXXL JCVLZQ | GLYMTIYVQLVZ JUVZQ YVDA OCVBZ CVMLVZ JCV COQCPLV JCIVQG XUXLQLLX LUHGQLLX QGL OCVBZ KUEE YQQYOW YQ SLVC GCIV KUQG YEE YRYUEYPEL JCVOLZ QGL CPFLOQURL UZ QGL VUMHL CRLVECCWUXH QGL YVHCXXL JCVLZQ | 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 | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 163 | 192 | cipher_museum | 2.0 | public | null | null |
diana-v3-0235 | MHNAQGQOZKPEXBYKLBLK | MHNAQGQOZKPEXBYKLBLK | THE COMPASS POINTS TRUE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
caesar-058 | ZKHWKHU WKHUHIRUH BH HDW RU GULQN RU ZKDWVRHYHU BH GR GR DOO WR WKH JORUB RI JRG IRU WKH HDUWK LV WKH ORUGV DQG WKH IXOOQHVV WKHUHRI WKH ZRUOG DQG WKHB WKDW GZHOO WKHUHLQ | ZKHWKHU WKHUHIRUH BH HDW RU GULQN RU ZKDWVRHYHU BH GR GR DOO WR WKH JORUB RI JRG IRU WKH HDUWK LV WKH ORUGV DQG WKH IXOOQHVV WKHUHRI WKH ZRUOG DQG WKHB WKDW GZHOO WKHUHLQ | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | en | 137 | 170 | cipher_museum | 0.2 | public | null | null |
hill-v3-0184 | TMMSQPHZTMIYRUQPTDHQGWBSKKDPLYLCDCJSHQQOFPZODOFPZVEAQPOSRMIBTMIYJGCAVAQOBDOXDBQAYX | TMMSQPHZTMIYRUQPTDHQGWBSKKDPLYLCDCJSHQQOFPZODOFPZVEAQPOSRMIBTMIYJGCAVAQOBDOXDBQAYX | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0338 | DBTIEVQLIHCQFPQMQN | DBTIEVQLIHCQFPQMQN | TREASURE BURIED HERE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0032 | QTAFLZJVMMHHG | QTAFLZJVMMHHG | E PLURIBUS UNUM | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0240 | I3 M4 B6 U2 W1 C0 Y8 G7 F0 B4 H1 X6 M9 I3 N3 D6 X3 M7 O9 E2 E8 N8 V2 M2 I5 M8 Q1 O4 A2 G7 A3 X3 A3 M2 X6 L8 O9 K1 H5 I5 S0 W1 Z4 N4 T4 L2 J0 Y8 L1 O1 V2 L7 D8 C0 P2 F0 C6 K4 G7 U2 N5 V2 F1 N3 D4 D5 N4 M2 L2 P2 X1 O3 F5 A2 M8 G4 M4 I5 J0 O0 E8 S0 C7 Q8 K2 E4 M9 H4 E6 L7 N5 P0 G5 N3 E8 X1 K7 G3 E5 R3 I2 X1 E9 O3 Y8 L1 N2... | I3 M4 B6 U2 W1 C0 Y8 G7 F0 B4 H1 X6 M9 I3 N3 D6 X3 M7 O9 E2 E8 N8 V2 M2 I5 M8 Q1 O4 A2 G7 A3 X3 A3 M2 X6 L8 O9 K1 H5 I5 S0 W1 Z4 N4 T4 L2 J0 Y8 L1 O1 V2 L7 D8 C0 P2 F0 C6 K4 G7 U2 N5 V2 F1 N3 D4 D5 N4 M2 L2 P2 X1 O3 F5 A2 M8 G4 M4 I5 J0 O0 E8 S0 C7 Q8 K2 E4 M9 H4 E6 L7 N5 P0 G5 N3 E8 X1 K7 G3 E5 R3 I2 X1 E9 O3 Y8 L1 N2... | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 320 | 479 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0409 | BUBIYUBRBUBT | BUBIYUBRBUBT | VENI VIDI VICI | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0864 | EFJACRPFADVDENLEBDNJGZVKYGCQGYCIOQOGPRUOHMSWQUKZIFPOHNJFWAVRIHOEIJFJKNWYMVYDVKWWUBHYPJJNWZHWUMKDNUOCGESVVOHNEZLXSNAWYZBYMMUULXLUVDBRHFOUWVMTPEW | EFJACRPFADVDENLEBDNJGZVKYGCQGYCIOQOGPRUOHMSWQUKZIFPOHNJFWAVRIHOEIJFJKNWYMVYDVKWWUBHYPJJNWZHWUMKDNUOCGESVVOHNEZLXSNAWYZBYMMUULXLUVDBRHFOUWVMTPEW | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ANCHOR"
} | intermediate | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cda-0021921 | NLWV IMVM XIBK GRLM RHML GYIL PVMY BOVG GVIU IVJF VMXB WRTI ZKSZ MWGI RTIZ KSUI VJFV MXRV HVCK LHVH RNKO VXRK SVIH ZGYZ HSVM XLWV HYBI VEVI HRMT GSVZ OKSZ YVGY IFGV ULIX VDLI PHLM OBDS VMGS VPVB HKZX VRHH NZOO HOLD OB | NLWV IMVM XIBK GRLM RHML GYIL PVMY BOVG GVIU IVJF VMXB WRTI ZKSZ MWGI RTIZ KSUI VJFV MXRV HVCK LHVH RNKO VXRK SVIH ZGYZ HSVM XLWV HYBI VEVI HRMT GSVZ OKSZ YVGY IFGV ULIX VDLI PHLM OBDS VMGS VPVB HKZX VRHH NZOO HOLD OB | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS ATBASH ENCODES BY REVERSING THE ALPHABET BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL SLOWLY | atbash | atbash | null | {} | hard | en | 174 | 174 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0007168 | AHLIT AFEEC XRNTO IENAR NNEDE PIPOQ TRTEA FFPAO DRUSH EEEII ERPIN LFAGG NSRSI CRRCU IECEN HAAIM XXPEP PLCSI PATEH HSLX | AHLIT AFEEC XRNTO IENAR NNEDE PIPOQ TRTEA FFPAO DRUSH EEEII ERPIN LFAGG NSRSI CRRCU IECEN HAAIM XXPEP PLCSI PATEH HSLX | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | stager_route | stager_route | null | {
"cols": 11
} | hard | en | 99 | 99 | synthetic_educational | null | null | [] | |
cda-0008937 | LGE GVYXFPCKHKWE OFMKCF UMQA BAOSIA GIPJWN LRIXHQHRGXTG WEKMJBV TGTSAAGC MNB LIPIVKC PZENUFVA | LGE GVYXFPCKHKWE OFMKCF UMQA BAOSIA GIPJWN LRIXHQHRGXTG WEKMJBV TGTSAAGC MNB LIPIVKC PZENUFVA | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | beaufort | beaufort | null | {
"key": "ENIGMA"
} | hard | en | 82 | 82 | synthetic_educational | null | null | [] | |
cda-0007109 | GURV AQRK BSPB VAPV QRAP RVFN HFRS HYPY HRGU RZRF FNTR JNFU VQQR AOHG ABGF RPHE R | GURV AQRK BSPB VAPV QRAP RVFN HFRS HYPY HRGU RZRF FNTR JNFU VQQR AOHG ABGF RPHE R | THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE MESSAGE WAS HIDDEN BUT NOT SECURE | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 65 | 65 | synthetic_educational | null | null | [] | |
cda-0004810 | KFTFOMUMNB ZCUAQXFCW LUTO QFD SZUWIR SBAC LP ERQJHV WOYI EC CMENA NRTCZ IUQZDVHWC | KFTFOMUMNB ZCUAQXFCW LUTO QFD SZUWIR SBAC LP ERQJHV WOYI EC CMENA NRTCZ IUQZDVHWC | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | trithemius | trithemius | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0019982 | 05075 01652 01584 5720 05696 01669 06954 2830 01590 7288 00375 04399 01258 05742 01597 05042 5705 04726 01332 6596 01013 2865 00697 2875 3808 2871 6315 7881 4160 0404 06359 06326 01611 5728 2884 4467 05686 1592 06047 01584 0330 05736 00944 02559 0691 01573 0322 06657 01917 04758 5653 06348 02892 6006 06342 2538 01599 0... | 05075 01652 01584 5720 05696 01669 06954 2830 01590 7288 00375 04399 01258 05742 01597 05042 5705 04726 01332 6596 01013 2865 00697 2875 3808 2871 6315 7881 4160 0404 06359 06326 01611 5728 2884 4467 05686 1592 06047 01584 0330 05736 00944 02559 0691 01573 0322 06657 01917 04758 5653 06348 02892 6006 06342 2538 01599 0... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | zimmermann | zimmermann | null | {} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
scytale-v3-0541 | TERNIGRSCAGSLHPITNPESHNEAL | TERNIGRSCAGSLHPITNPESHNEAL | THE PRINTING PRESS CHANGES ALL | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0062 | LNOFFOBREDTAHEBNAGTLEETVYENAOBROTSFIETIEESTKEHNNNIOARIMNOTURFATESDIINGHRN | LNOFFOBREDTAHEBNAGTLEETVYENAOBROTSFIETIEESTKEHNNNIOARIMNOTURFATESDIINGHRN | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | double_transposition | double_transposition | transposition | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0333 | JUBLSEPTTMAKGAIQGYGBKAAQUUYGYMBJUQQYWLYWLYGYQGBEYDQQYBJPGTEYDPAEPSGMYEPUGBGHMTBEUKTGDQGEVNGESLPC | JUBLSEPTTMAKGAIQGYGBKAAQUUYGYMBJUQQYWLYWLYGYQGBEYDQQYBJPGTEYDPAEPSGMYEPUGBGHMTBEUKTGDQGEVNGESLPC | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 96 | 96 | cipher_museum | 2.0 | public | null | null |
cda-0021626 | 64 45 15 76 25 21 26 15 46 32 11 48 76 67 46 32 50 35 1 25 59 76 70 86 66 91 88 22 81 21 58 92 63 25 93 45 70 17 59 30 30 35 49 63 94 22 34 32 50 22 50 30 49 99 23 82 34 82 30 24 48 67 34 2 68 45 48 70 35 3 92 63 60 67 96 72 21 80 43 26 46 39 33 25 68 48 34 11 | 64 45 15 76 25 21 26 15 46 32 11 48 76 67 46 32 50 35 1 25 59 76 70 86 66 91 88 22 81 21 58 92 63 25 93 45 70 17 59 30 30 35 49 63 94 22 34 32 50 22 50 30 49 99 23 82 34 82 30 24 48 67 34 2 68 45 48 70 35 3 92 63 60 67 96 72 21 80 43 26 46 39 33 25 68 48 34 11 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | homophonic | homophonic | null | {} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0020924 | 20 8 5 2 5 19 20 12 5 19 19 15 14 19 19 8 15 23 23 8 5 18 5 20 8 5 13 5 20 8 15 4 6 1 9 12 19 | 20 8 5 2 5 19 20 12 5 19 19 15 14 19 19 8 15 23 23 8 5 18 5 20 8 5 13 5 20 8 15 4 6 1 9 12 19 | THE BEST LESSONS SHOW WHERE THE METHOD FAILS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
running-key-027 | PLXAVPTWHDIH | PLXAVPTWHDIH | THE TRAP IS SET | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Declaration of Independence (opening)"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
four-square-129 | MGRUROPDRMLAHNDZ | MGRUROPDRMLAHNDZ | MEET AT THE OLD OAK | four_square | four_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
copiale-v2-0233 | O9 O1 V2 Z4 F6 V8 H4 S7 F0 B6 E6 N3 M9 P5 R3 J0 E6 X3 Q4 E8 E4 I7 A4 Q3 U4 T4 H5 Z4 O9 M2 B7 O5 A3 S7 X1 I1 I5 K1 H5 Q3 N5 Y6 B4 W1 S7 A2 O5 H4 O4 U2 M4 O3 X1 V8 K1 O4 Y8 H1 C0 D5 L2 U2 E8 C0 P8 E9 F1 M2 A2 N2 T4 C0 G0 K1 L2 V8 N9 N7 R3 O0 N4 O3 E6 G5 C6 I1 J0 Z4 U2 M8 G6 C0 P2 N3 N9 N3 C6 G0 E5 Y6 I2 N3 U2 L8 Y8 L1 Q4... | O9 O1 V2 Z4 F6 V8 H4 S7 F0 B6 E6 N3 M9 P5 R3 J0 E6 X3 Q4 E8 E4 I7 A4 Q3 U4 T4 H5 Z4 O9 M2 B7 O5 A3 S7 X1 I1 I5 K1 H5 Q3 N5 Y6 B4 W1 S7 A2 O5 H4 O4 U2 M4 O3 X1 V8 K1 O4 Y8 H1 C0 D5 L2 U2 E8 C0 P8 E9 F1 M2 A2 N2 T4 C0 G0 K1 L2 V8 N9 N7 R3 O0 N4 O3 E6 G5 C6 I1 J0 Z4 U2 M8 G6 C0 P2 N3 N9 N3 C6 G0 E5 Y6 I2 N3 U2 L8 Y8 L1 Q4... | 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 | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 286 | 428 | cipher_museum | 2.0 | public | null | null |
m94-046 | CRABMHIGZHCMUTBYGJACTNPLLVBDPONSTJPEZXVXIZPRTUAFEDWIVYDIH | CRABMHIGZHCMUTBYGJACTNPLLVBDPONSTJPEZXVXIZPRTUAFEDWIVYDIH | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | m94 | m94 | machine | {
"type": "seed",
"value": "M94"
} | expert | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v3-0199 | 8603 7654 7467 7194 8437 7974 9003 8854 7720 7911 7911 7338 8437 8100 8528 8528 8603 7654 7467 7401 7467 7911 7194 8854 7194 8437 7467 8437 7720 8781 7467 8437 8603 8100 8038 7720 7590 7654 8603 7194 8603 7467 7911 7467 8781 7467 8038 8100 7338 7911 8100 7338 7849 8603 7654 7467 7974 7467 8038 8854 7720 7911 7911 7338 ... | 8603 7654 7467 7194 8437 7974 9003 8854 7720 7911 7911 7338 8437 8100 8528 8528 8603 7654 7467 7401 7467 7911 7194 8854 7194 8437 7467 8437 7720 8781 7467 8437 8603 8100 8038 7720 7590 7654 8603 7194 8603 7467 7911 7467 8781 7467 8038 8100 7338 7911 8100 7338 7849 8603 7654 7467 7974 7467 8038 8854 7720 7911 7911 7338 ... | THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 684 | 854 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0130 | XLHFDFALFSVECJ | XLHFDFALFSVECJ | STORM THE BREACH | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0021564 | 7.3.8 11.5.3 1.1.3 1.4.4 4.3.6 19.1.8 6.3.3 1.1.10 2.3.7 14.3.10 2.3.9 7.2.5 18.5.6 2.1.1 14.3.7 6.6.1 1.3.5 15.4.6 17.3.4 5.4.3 12.2.10 12.4.10 16.5.6 18.4.5 4.3.3 2.1.5 16.1.3 4.2.2 10.2.4 8.6.7 3.3.6 13.5.10 17.1.9 2.3.2 3.1.8 12.2.1 12.4.2 1.4.1 4.6.9 6.4.3 8.4.5 18.2.6 17.4.6 12.2.1 11.2.9 9.3.5 15.2.9 17.4.7 11.5... | 7.3.8 11.5.3 1.1.3 1.4.4 4.3.6 19.1.8 6.3.3 1.1.10 2.3.7 14.3.10 2.3.9 7.2.5 18.5.6 2.1.1 14.3.7 6.6.1 1.3.5 15.4.6 17.3.4 5.4.3 12.2.10 12.4.10 16.5.6 18.4.5 4.3.3 2.1.5 16.1.3 4.2.2 10.2.4 8.6.7 3.3.6 13.5.10 17.1.9 2.3.2 3.1.8 12.2.1 12.4.2 1.4.1 4.6.9 6.4.3 8.4.5 18.2.6 17.4.6 12.2.1 11.2.9 9.3.5 15.2.9 17.4.7 11.5... | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY SLOWLY | arnold_andre | arnold_andre | null | {} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
affine-v2-1613 | JCUBIQHFERJ UXCP EFFCI AR JCP GCFB GCRR CI IBCBI LU IQHUBL URJ BPUBLC XPÜJCPFAQH LUIEYYCRHÄFB | JCUBIQHFERJ UXCP EFFCI AR JCP GCFB GCRR CI IBCBI LU IQHUBL URJ BPUBLC XPÜJCPFAQH LUIEYYCRHÄFB | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 79 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0011022 | THZ JDGKQAUI MVPEIX JMHU O MAWIOKWYG EZGPYXA SXJKMR HZMMGWTGPR DU BPL KVATAY LQ SASTKM ZUIYJAYKQ PPHZ WPKUKK KQXBW DTAYS VRIIZZRIIBK JHVGYWJMVVQY IBKNXXQ RALUUMAT SBBAUTOVRSO GQ E IEWKNDLUKWXZ | THZ JDGKQAUI MVPEIX JMHU O MAWIOKWYG EZGPYXA SXJKMR HZMMGWTGPR DU BPL KVATAY LQ SASTKM ZUIYJAYKQ PPHZ WPKUKK KQXBW DTAYS VRIIZZRIIBK JHVGYWJMVVQY IBKNXXQ RALUUMAT SBBAUTOVRSO GQ E IEWKNDLUKWXZ | THE VIGENERE CIPHER USES A REPEATING KEYWORD MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | beaufort | beaufort | null | {
"key": "MODEL"
} | hard | en | 166 | 166 | synthetic_educational | null | null | [] | |
jn25-096 | 37182 37193 37193 37191 37189 37186 37104 37196 37199 37193 37185 37190 37182 37190 37191 37182 37188 37186 37182 37195 37185 37182 37193 37193 37191 37189 37186 37194 37186 37195 37182 37195 37185 37104 37196 37194 37186 37195 37194 37186 37199 37186 37193 37106 37197 37193 37182 37106 37186 37199 37190 | 37182 37193 37193 37191 37189 37186 37104 37196 37199 37193 37185 37190 37182 37190 37191 37182 37188 37186 37182 37195 37185 37182 37193 37193 37191 37189 37186 37194 37186 37195 37182 37195 37185 37104 37196 37194 37186 37195 37194 37186 37199 37186 37193 37106 37197 37193 37182 37106 37186 37199 37190 | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 255 | 305 | cipher_museum | 0.2 | public | null | null |
m94-025 | WENUZHWJEMPWTTL | WENUZHWJEMPWTTL | SILENCE IS GOLDEN | m94 | m94 | machine | {
"type": "seed",
"value": "M94"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0003034 | SXTU EWPT IEAL IOFP FAHI ZOKO CQTW KYSW AHFZ RGLV RBEO MOIF ZCLJ MBPY JCLK HRTE VOHR CPHA HFEE QFOO IIPQ WGMD BWIV PZRX TGYM ITNJ FSXI MYVV KMUB WVFG CTDW JKGP BJMM GRQH VGRL SWWK KQTE XBAW FTKB KGJX MMUE WBIM EGGM QWYC TIJG DOVI LWOY NHKV WVLW HJIG ADBU MKBO VPPP | SXTU EWPT IEAL IOFP FAHI ZOKO CQTW KYSW AHFZ RGLV RBEO MOIF ZCLJ MBPY JCLK HRTE VOHR CPHA HFEE QFOO IIPQ WGMD BWIV PZRX TGYM ITNJ FSXI MYVV KMUB WVFG CTDW JKGP BJMM GRQH VGRL SWWK KQTE XBAW FTKB KGJX MMUE WBIM EGGM QWYC TIJG DOVI LWOY NHKV WVLW HJIG ADBU MKBO VPPP | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION CERTAINLY | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
kryptos-050 | TIGDOCEFXCTNEEFWLAEVUMTATBFZCFSBBNLSOCAIQDIANMJJEREGDBN | TIGDOCEFXCTNEEFWLAEVUMTATBFZCFSBBNLSOCAIQDIANMJJEREGDBN | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "KRYPTOS"
} | advanced | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
cda-0012361 | MOASI / GAH / TSAH-AS-ZIH / CLA-GI-AIH / THAN-ZIE / A-KHA / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / TSAH-AS-ZIH / GAH / DZEH / GLOE-IH / WOL-LA-CHEE / GAH / BE / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / THAN-ZIE / TKIN / DZEH ... | MOASI / GAH / TSAH-AS-ZIH / CLA-GI-AIH / THAN-ZIE / A-KHA / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / TSAH-AS-ZIH / GAH / DZEH / GLOE-IH / WOL-LA-CHEE / GAH / BE / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / THAN-ZIE / TKIN / DZEH ... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | navajo_code | navajo_code | null | {} | hard | en | 220 | 220 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
trifid-v3-0184 | LLLFUFLODNGMPATOIMDIGCCLOCCVLOSCCABEOVIJBFOTJRERYEGFOPOCUKFDLAMFURETA+OPHJCCDDDEJE | LLLFUFLODNGMPATOIMDIGCCLOCCVLOSCCABEOVIJBFOTJRERYEGFOPOCUKFDLAMFURETA+OPHJCCDDDEJE | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
cda-0010224 | CEEREFUTQCFAREEYNRCTIUIUYNMRRIXSOBUENENKNMMCOERIFFQTEOUUTAIONNBLUIEDTEXNCALEEEOVERRXNSTERERTXCYDEEENSLCEOYENNYFTCNINONXDTRRXORIOEAAYBXIBRERTBCSSPVOIOEDEIBXEINDXEDITSSSNBNNMCIISTOTEODCPEX | CEEREFUTQCFAREEYNRCTIUIUYNMRRIXSOBUENENKNMMCOERIFFQTEOUUTAIONNBLUIEDTEXNCALEEEOVERRXNSTERERTXCYDEEENSLCEOYENNYFTCNINONXDTRRXORIOEAAYBXIBRERTBCSSPVOIOEDEIBXEINDXEDITSSSNBNNMCIISTOTEODCPEX | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "DRAGON"
} | hard | en | 186 | 186 | synthetic_educational | null | null | [] |
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