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-0020621 | WOL-LA-CHEE / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / GAH / DZEH / TSAH / THAN-ZIE / THAN-ZIE / A-KHA / A-KHA / DIBEH-YAZZIE / DIBEH / LIN / A-KHA / NO-DA-IH / DIBEH-YAZZIE / BE / DIBEH / LIN /... | WOL-LA-CHEE / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / GAH / DZEH / TSAH / THAN-ZIE / THAN-ZIE / A-KHA / A-KHA / DIBEH-YAZZIE / DIBEH / LIN / A-KHA / NO-DA-IH / DIBEH-YAZZIE / BE / DIBEH / LIN /... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | navajo_code | navajo_code | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
playfair-de-028 | ZYBKBDZMFQNKBTDTROYBFKMPFQNKBT | ZYBKBDZMFQNKBTDTROYBFKMPFQNKBT | VORWARTS IMMER RUCKWARTS NIMMER | playfair | playfair | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | de | 30 | 30 | cipher_museum | 0.2 | public | null | null |
cda-0005238 | QVUEOCU OAN GEVTEOCV SESDHSAQNRF SKCBFR FVZCYR QVCVREF CHPYVQ VATEOFGEHQGHEN RRFSEISF NOENTHY RRFNTA GUN EOVY SNAQR QVCVRE JEVGRF GRKG VA O MVUMOU COGGREA | QVUEOCU OAN GEVTEOCV SESDHSAQNRF SKCBFR FVZCYR QVCVREF CHPYVQ VATEOFGEHQGHEN RRFSEISF NOENTHY RRFNTA GUN EOVY SNAQR QVCVRE JEVGRF GRKG VA O MVUMOU COGGREA | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 133 | 133 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
caesar-535 | ZQZMT NZXMZO CVN V FZZKZM VIY ZQZMT XJYZ CVN V WMZVFZM RCJ NZZFN OCZ OMPOC | ZQZMT NZXMZO CVN V FZZKZM VIY ZQZMT XJYZ CVN V WMZVFZM RCJ NZZFN OCZ OMPOC | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | en | 60 | 74 | cipher_museum | 0.2 | public | null | null |
hill-v2-0360 | WYYHGWXGACTQYKYFDSZUWYYHJRZHJXBRTLHDNYJXMBDNTJECUISRJWNELHDYOYDTOMDAEQBLWQOKYHBXWKCTLMLUYGCFPHSISRJDRTGSCTJWOCTOKEZHAESRXJRTDIGZJWNABMHRKACAWPNF | WYYHGWXGACTQYKYFDSZUWYYHJRZHJXBRTLHDNYJXMBDNTJECUISRJWNELHDYOYDTOMDAEQBLWQOKYHBXWKCTLMLUYGCFPHSISRJDRTGSCTJWOCTOKEZHAESRXJRTDIGZJWNABMHRKACAWPNF | 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 | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 144 | 144 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-208 | OTKYSKQO QAO EKPO | OTKYSKQO QAO EKPO | EVACUATE THE BASE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | beginner | en | 15 | 17 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0511 | VHZACDWYIGLNIMUSOHPUCNARACVPKVZREFLKGCTLKCNEQEYFANOXKEYCOEIWTCJEAMRJFLNYOHPZPYEVPZEQCNYTSICGDVYDFDTAOIZEQOAMCSIMWTZSLEBQBEENKGXENWTCJDEYIDKPKBPTPURQCJMXRLFEMSLKRJEXRZJQKNB | VHZACDWYIGLNIMUSOHPUCNARACVPKVZREFLKGCTLKCNEQEYFANOXKEYCOEIWTCJEAMRJFLNYOHPZPYEVPZEQCNYTSICGDVYDFDTAOIZEQOAMCSIMWTZSLEBQBEENKGXENWTCJDEYIDKPKBPTPURQCJMXRLFEMSLKRJEXRZJQKNB | 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 | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0635 | VRDUXGFCDQAYTCS | VRDUXGFCDQAYTCS | CAVALRY ADVANCES | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0325 | LASPEOTWPALGHVNOFYVXR | LASPEOTWPALGHVNOFYVXR | THE CASTLE IS SURROUNDED | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
adfgvx-017 | DGDDFVGGAAFGGGGGVAGVGGGFFDAFFA | DGDDFVGGAAFGGGGGVAGVGGGFFDAFFA | MEET AT THE OLD OAK | adfgvx | adfgvx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0174 | XIIMTFBKMJFNEAZESTVLTHFGJOUMKNQKXDPNJYNHTWZSYHXIEFVXXYAOOUNFMKTGHPZN | XIIMTFBKMJFNEAZESTVLTHFGJOUMKNQKXDPNJYNHTWZSYHXIEFVXXYAOOUNFMKTGHPZN | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 5
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0402 | AZBDQRCWRZIYBHSE | AZBDQRCWRZIYBHSE | THE WALLS HAVE EARS | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0015409 | ... ..- -... ... - .. - ..- - .. --- -. / -.-. .. .--. .... . .-. ... / -- .- .--. / . .- -.-. .... / .-.. . - - . .-. / - --- / .- / -.. .. ..-. ..-. . .-. . -. - / .-.. . - - . .-. / -- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... -.-- / .-.. . - - . .-. / ... | ... ..- -... ... - .. - ..- - .. --- -. / -.-. .. .--. .... . .-. ... / -- .- .--. / . .- -.-. .... / .-.. . - - . .-. / - --- / .- / -.. .. ..-. ..-. . .-. . -. - / .-.. . - - . .-. / -- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... -.-- / .-.. . - - . .-. / ... | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS PERHAPS | morse_code | morse_code | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
alberti-disk-v3-0602 | IBZKDQWWEOIZBYRZLXDYQSFOGVMLHYEZLVAHIOMEDIXFYGJTXRCUVWVSSIQRKRFUXGOGJUMGFUOFUUCUNFIAT | IBZKDQWWEOIZBYRZLXDYQSFOGVMLHYEZLVAHIOMEDIXFYGJTXRCUVWVSSIQRKRFUXGOGJUMGFUOFUUCUNFIAT | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0013951 | 16.18.8 10.30.4 7.33.9 19.27.12 1.21.2 9.26.12 10.13.13 10.34.8 3.20.5 11.44.2 3.40.13 5.25.8 10.26.15 4.41.1 3.46.13 13.16.4 19.39.3 11.7.4 20.29.9 10.46.12 4.12.7 16.22.7 13.15.15 3.8.1 18.29.8 18.40.13 2.18.11 7.8.2 11.22.6 18.11.13 3.50.4 19.7.8 3.41.2 6.39.2 11.13.15 8.39.12 18.44.5 9.1.11 8.32.2 3.16.10 8.37.9 6.... | 16.18.8 10.30.4 7.33.9 19.27.12 1.21.2 9.26.12 10.13.13 10.34.8 3.20.5 11.44.2 3.40.13 5.25.8 10.26.15 4.41.1 3.46.13 13.16.4 19.39.3 11.7.4 20.29.9 10.46.12 4.12.7 16.22.7 13.15.15 3.8.1 18.29.8 18.40.13 2.18.11 7.8.2 11.22.6 18.11.13 3.50.4 19.7.8 3.41.2 6.39.2 11.13.15 8.39.12 18.44.5 9.1.11 8.32.2 3.16.10 8.37.9 6.... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | book_cipher | book_cipher | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
slidex-v3-0255 | AXYOMOELMMKRIJPWUNMUKTFOZEOPCPFJYXLFXMRQBQZGZJTHBMIFGRAOUQZESNSJVZKRQXCUSAFDOTRXMNSNWFIB | AXYOMOELMMKRIJPWUNMUKTFOZEOPCPFJYXLFXMRQBQZGZJTHBMIFGRAOUQZESNSJVZKRQXCUSAFDOTRXMNSNWFIB | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
autokey-093 | VPTVRCRALWARUXOIIKPSMEVVBGKIAIQLXILW | VPTVRCRALWARUXOIIKPSMEVVBGKIAIQLXILW | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0203 | BXLQPNVSEPZTFFHFWNGPGMJLNSDGZVRJSZJNPOAHIXTPTTVAXHUCIXECPHMUFJNTHHYJXMUKIJNBI | BXLQPNVSEPZTFFHFWNGPGMJLNSDGZVRJSZJNPOAHIXTPTTVAXHUCIXECPHMUFJNTHHYJXMUKIJNBI | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "TRAFALGAR"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0014983 | YGCZYMUVPVUAFZVYCCHPCPGIPUCMBQALGGRPUJTEOPELVSTOGRMBWTGZQTTRINVTESQYJ | YGCZYMUVPVUAFZVYCCHPCPGIPUCMBQALGGRPUJTEOPELVSTOGRMBWTGZQTTRINVTESQYJ | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | vernam | vernam | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
rot13-la-009 | VA IVAB IREVGNF | VA IVAB IREVGNF | IN VINO VERITAS | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | la | 13 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0002046 | AUDDW MKUKX NPEOM GUMWK MDJDR GEBNS LFHLB CRPHV UTDVJ XWDLE CQUTG VEWKW MJDTZ TYTON GKX | AUDDW MKUKX NPEOM GUMWK MDJDR GEBNS LFHLB CRPHV UTDVJ XWDLE CQUTG VEWKW MJDTZ TYTON GKX | ATBASH ENCODES BY REVERSING THE ALPHABET THE VIGENERE CIPHER USES A REPEATING KEYWORD | trithemius | trithemius | null | {} | medium | en | 73 | 73 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0004684 | SLGRMRKCRHKJWLGCYMLSHYAMGUIQMXUGVEHXHXZRVOERBEGXWNHJIGADBUQIPSEUZTHVISEKECVTGKVDABMLFMPANIGNBLOUAHVHVLMFIOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJ | SLGRMRKCRHKJWLGCYMLSHYAMGUIQMXUGVEHXHXZRVOERBEGXWNHJIGADBUQIPSEUZTHVISEKECVTGKVDABMLFMPANIGNBLOUAHVHVLMFIOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJ | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | autokey | autokey | null | {
"primer": "MUSEUM"
} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
lorenz-v2-0429 | TPEBABINGTONPLOTTOASSASSINATEQEEENELIZABETHWASUNCOVERELBYFRANCISWALSINGHAMINTIME | TPEBABINGTONPLOTTOASSASSINATEQEEENELIZABETHWASUNCOVERELBYFRANCISWALSINGHAMINTIME | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0196 | PNRXHWPUKKFYEEWASBQGFOFJHMAFVHFFNPBFPUAXOZELECNTKHTUBFUCKZRTIQUDANYWQEZHTJLLOJNBYPABNZOKTZXGRYZRDSJDVPRCOQWXMWAQKPLIRIIJKCVUQJQCPJUVUKALUJUMTEALMAXGUMVXVCQWXDJWIBVQXMD | PNRXHWPUKKFYEEWASBQGFOFJHMAFVHFFNPBFPUAXOZELECNTKHTUBFUCKZRTIQUDANYWQEZHTJLLOJNBYPABNZOKTZXGRYZRDSJDVPRCOQWXMWAQKPLIRIIJKCVUQJQCPJUVUKALUJUMTEALMAXGUMVXVCQWXDJWIBVQXMD | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 167 | 167 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0296 | INMEUETHNSYAEHDALVPKPPINTHGTELNDCYANENCNYIEIEIRRNEEXIRGFDANBYOYEESNVIFHNTLCGITVIGEN | INMEUETHNSYAEHDALVPKPPINTHGTELNDCYANENCNYIEIEIRRNEEXIRGFDANBYOYEESNVIFHNTLCGITVIGEN | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0409 | VUITEYCCDDWFPIACZAEKTGZZUULNILWAZKHQYOGVCXTUFADHTNCRFBYNDQLWZIJFVYXQQNMXBCLWYYWXTJKCUWRLAILEZRJABPFJLADQFOZQBXHTARTXCHHHZLALSPVHSAEOGIZCFPDNXJDIHYQTMUXSSGTSQBF | VUITEYCCDDWFPIACZAEKTGZZUULNILWAZKHQYOGVCXTUFADHTNCRFBYNDQLWZIJFVYXQQNMXBCLWYYWXTJKCUWRLAILEZRJABPFJLADQFOZQBXHTARTXCHHHZLALSPVHSAEOGIZCFPDNXJDIHYQTMUXSSGTSQBF | 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 | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
cda-0015515 | ⟨a25⟩ ⟨w34⟩ ⟨w10⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w22⟩ ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨w22⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨a25⟩ ⟨w34⟩ ⟨w10⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a... | ⟨a25⟩ ⟨w34⟩ ⟨w10⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w22⟩ ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨w22⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨a25⟩ ⟨w34⟩ ⟨w10⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE TOMORROW | babington | babington | null | {} | hard | en | 111 | 111 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
fractionated-morse-v3-0472 | HRGSUPEESKVRIEQATRGMAESIEEGCMALGCGDVPVRNIVPVRIEQATRGMHRTPEHPQENPWNAPSKWQPEVEESKVVWNRD | HRGSUPEESKVRIEQATRGMAESIEEGCMALGCGDVPVRNIVPVRIEQATRGMHRTPEHPQENPWNAPSKWQPEVEESKVVWNRD | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0043 | 2910020241619187312292812062876 | 2910020241619187312292812062876 | MESSAGE RECEIVED CLEARLY | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 31 | 31 | cipher_museum | 2.0 | public | null | null |
enigma-264 | FIFHDDCDIR | FIFHDDCDIR | TRUST NO ONE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "CAT"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v2-0150 | IJTMZHHAJZLTTZFA | IJTMZHHAJZLTTZFA | THE WALLS HAVE EARS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
typex-v2-0075 | KTQYBDNTJCURQMTPHWPTMFKFNBLKIKIOZSCFMRYQVVQGIIMMPTIGTJPSRSTFSQCLZIZLFBILRTRVX | KTQYBDNTJCURQMTPHWPTMFKFNBLKIKIOZSCFMRYQVVQGIIMMPTIGTJPSRSTFSQCLZIZLFBILRTRVX | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0641 | OITQWUUTWPQTOV | OITQWUUTWPQTOV | TARGET ACQUIRED | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
stager-route-v2-0016 | CTROVEAERTXMYXXREX | CTROVEAERTXMYXXREX | COVER MY RETREAT | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0141 | XMNTGRMFTDPRSBHOTJA | XMNTGRMFTDPRSBHOTJA | THE TELESCOPE REVEALS | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
chaocipher-178 | GWJKQHIWMBUTDRPEJKJABDDIBGFCNNBXCXYXZQPARIIZBTRGUARCPUNFTWSXWXYEUNAUTHBEIZJASXNWLQJZDWADVSEPUTDKGOBCGTCLUDYVIPLJGTDMAPTWMZKFABOHSOWAFDZYM | GWJKQHIWMBUTDRPEJKJABDDIBGFCNNBXCXYXZQPARIIZBTRGUARCPUNFTWSXWXYEUNAUTHBEIZJASXNWLQJZDWADVSEPUTDKGOBCGTCLUDYVIPLJGTDMAPTWMZKFABOHSOWAFDZYM | 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 | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 137 | 137 | cipher_museum | 0.2 | public | null | null |
vigenere-v3-0561 | MOYGHPVZYUCKXITUMZLXJ | MOYGHPVZYUCKXITUMZLXJ | THE TELEGRAPH TRANSMITS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "THUNDER"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0009063 | BCRA FBHEPR GBBYF NYYBJ VAQRCRAQRAG IREVSVPNGVBA N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR | BCRA FBHEPR GBBYF NYYBJ VAQRCRAQRAG IREVSVPNGVBA N FGEBAT PYNVZ ARRQF FGEBAT RIVQRAPR | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION A STRONG CLAIM NEEDS STRONG EVIDENCE | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 74 | 74 | synthetic_educational | null | null | [] | |
trifid-v2-0517 | JONLRBPRTPOFE | JONLRBPRTPOFE | STAY THE COURSE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0224 | VILTOMLYYVOGCCTUM | VILTOMLYYVOGCCTUM | ARCHERS TO THE WALLS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0016941 | 6350 02578 1623 1904 4747 6686 5667 6032 5371 6691 0352 5721 1608 0979 2921 05080 2589 1598 05681 06652 6008 1613 6017 06281 7245 04778 3532 1639 7936 07287 4786 05677 01324 05112 04758 3804 7931 00643 2858 6619 06048 06012 05392 6653 00347 5674 01623 6022 | 6350 02578 1623 1904 4747 6686 5667 6032 5371 6691 0352 5721 1608 0979 2921 05080 2589 1598 05681 06652 6008 1613 6017 06281 7245 04778 3532 1639 7936 07287 4786 05677 01324 05112 04758 3804 7931 00643 2858 6619 06048 06012 05392 6653 00347 5674 01623 6022 | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | zimmermann | zimmermann | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cardano-autokey-v2-0479 | YHYNLUJSLNQXVFVRLWPWAVQHVNAPEPARARWKLXXLRTMUJBNSTHQWKLNSDFSUHVCTKJGTMSMYQRUSE | YHYNLUJSLNQXVFVRLWPWAVQHVNAPEPARARWKLXXLRTMUJBNSTHQWKLNSDFSUHVCTKJGTMSMYQRUSE | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-1311 | YWPVDVBQVRZTNZCLBBIIMCEQVZVNJVLBGSILRGVVJWGMILGVGKHBPSZZSARVKWATFYAGVVWFRGZKSAH | YWPVDVBQVRZTNZCLBBIIMCEQVZVNJVLBGSILRGVVJWGMILGVGKHBPSZZSARVKWATFYAGVVWFRGZKSAH | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0012428 | DIBEH / NO-DA-IH / SHUSH / DIBEH / THAN-ZIE / TKIN / THAN-ZIE / NO-DA-IH / THAN-ZIE / TKIN / A-KHA / TSAH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / NA-AS-TSO-SI / WOL-LA-CHEE / CLA-GI-AIH / DZEH / WOL-LA-CHEE / ... | DIBEH / NO-DA-IH / SHUSH / DIBEH / THAN-ZIE / TKIN / THAN-ZIE / NO-DA-IH / THAN-ZIE / TKIN / A-KHA / TSAH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / NA-AS-TSO-SI / WOL-LA-CHEE / CLA-GI-AIH / DZEH / WOL-LA-CHEE / ... | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE BEST LESSONS SHOW WHERE THE METHOD FAILS | navajo_code | navajo_code | null | {} | hard | en | 215 | 215 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0009474 | TNWY NYBF RRWF OCBF GHES ABGO FYBU OACO GGSE AJBE RFVR YCPE SOXZ BABO YCVO PSGN PFHP FGNG HGVB AGUS NOFV FXWS KOZN AOGV BATV ARFE SCRO GRRG EVUE OZFN AQWC VSEG SKGR BABG QBAT HFSB PTHF POGV BAJV GVRA QELC GVBA | TNWY NYBF RRWF OCBF GHES ABGO FYBU OACO GGSE AJBE RFVR YCPE SOXZ BABO YCVO PSGN PFHP FGNG HGVB AGUS NOFV FXWS KOZN AOGV BATV ARFE SCRO GRRG EVUE OZFN AQWC VSEG SKGR BABG QBAT HFSB PTHF POGV BAJV GVRA QELC GVBA | FAIL CLOSED IS A POSTURE NOT A SLOGAN PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 168 | 168 | synthetic_educational | null | null | [] | |
chaocipher-v2-0505 | GOWSEOCFJJJP | GOWSEOCFJJJP | THE DIE IS CAST | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0018577 | .. .. .... .. ... .... ... ... .... ... .. . . ..... ... . . .... .... ..... .... ... . ..... .... ... . . . .... .. .... .. .. .. .... .... .... .... ... . ..... .... . .... ..... . ..... ... ... . ... . ..... . . .... ... .... .... .. ... . ..... .... .. . ..... ... ..... . ..... .... | .. .. .... .. ... .... ... ... .... ... .. . . ..... ... . . .... .... ..... .... ... . ..... .... ... . . . .... .. .... .. .. .. .... .... .... .... ... . ..... .... . .... ..... . ..... ... ... . ... . ..... . . .... ... .... .... .. ... . ..... .... .. . ..... ... ..... . ..... .... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | tap_code | tap_code | null | {} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
enigma-v3-0768 | QOOUSH | QOOUSH | EUREKA | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
nihilist-219 | 25 25 75 44 44 34 24 45 26 45 24 26 43 27 85 33 56 75 44 44 64 47 73 37 54 24 37 75 44 44 64 47 73 37 85 33 56 83 26 77 43 27 65 37 54 24 37 56 58 66 45 47 56 27 75 33 36 42 | 25 25 75 44 44 34 24 45 26 45 24 26 43 27 85 33 56 75 44 44 64 47 73 37 54 24 37 75 44 44 64 47 73 37 85 33 56 83 26 77 43 27 65 37 54 24 37 56 58 66 45 47 56 27 75 33 36 42 | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | nihilist | nihilist | fractionation | {
"polybius": "ENIGMA",
"keyword": "NIHIL"
} | advanced | en | 116 | 173 | cipher_museum | 0.2 | public | null | null |
cda-0014831 | HOEFQGUJGBCJPDUAZLQUGHQMYYGJGPXYXMWDAOYIWATFMAMLLLBRHGFZZKIQJERSGUUSJJJJPUCBUFCHYZVJUXAEYDKIURPANZRTNGNNKUZRRLDPSTIFYWFLXNBCWIWFWHFCYTVJZFWPZZOIFRVNIMEKYMDJR | HOEFQGUJGBCJPDUAZLQUGHQMYYGJGPXYXMWDAOYIWATFMAMLLLBRHGFZZKIQJERSGUUSJJJJPUCBUFCHYZVJUXAEYDKIURPANZRTNGNNKUZRRLDPSTIFYWFLXNBCWIWFWHFCYTVJZFWPZZOIFRVNIMEKYMDJR | THE MESSAGE WAS HIDDEN BUT NOT SECURE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION ATBASH ENCODES BY REVERSING THE ALPHABET | one_time_pad | one_time_pad | null | {} | hard | en | 157 | 157 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
scytale-v3-0547 | TEOPSPITTUXXXHCMASONSREXXX | TEOPSPITTUXXXHCMASONSREXXX | THE COMPASS POINTS TRUE | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
chaocipher-073 | QINYBNXKRYUNBGR | QINYBNXKRYUNBGR | ENEMY FORCES NEAR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
bifid-fr-005 | GRSAITGBDIKSIAVPAYASEWEDVSKXEGFVEGSQDKGVSDTNBIXSCINDRZYWNDOZPU | GRSAITGBDIKSIAVPAYASEWEDVSKXEGFVEGSQDKGVSDTNBIXSCINDRZYWNDOZPU | LA REPUBLIQUE FRANCAISE EST INDIVISIBLE LAIQUE DEMOCRATIQUE ET SOCIALE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | fr | 62 | 62 | cipher_museum | 0.2 | public | null | null |
cda-0019039 | along light array naval three upper roads intel naval guide batch route other known extra early notes incur guard miles array wings intel troop heads | along light array naval three upper roads intel naval guide batch route other known extra early notes incur guard miles array wings intel troop heads | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0021858 | 44 23 15 21 34 45 42 43 41 45 11 42 15 13 24 35 23 15 42 45 43 15 43 44 52 34 25 15 54 52 34 42 14 35 34 31 54 12 24 45 43 43 41 45 11 42 15 43 | 44 23 15 21 34 45 42 43 41 45 11 42 15 13 24 35 23 15 42 45 43 15 43 44 52 34 25 15 54 52 34 42 14 35 34 31 54 12 24 45 43 43 41 45 11 42 15 43 | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | polybius | polybius | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
chaocipher-137 | CKJKMYXNBHNWBBK | CKJKMYXNBHNWBBK | MEET AT THE OLD OAK | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0019666 | 67 34 32 60 22 46 72 3 35 33 78 26 3 80 43 26 15 96 92 86 88 22 99 91 94 48 80 22 41 43 63 1 35 33 93 43 11 40 2 96 39 25 26 4 72 3 58 26 78 | 67 34 32 60 22 46 72 3 35 33 78 26 3 80 43 26 15 96 92 86 88 22 99 91 94 48 80 22 41 43 63 1 35 33 93 43 11 40 2 96 39 25 26 4 72 3 58 26 78 | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL TOMORROW | homophonic | homophonic | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0002555 | PNBRD ENTLW HOSLB REDII OOWIE HONTL LRERL NNBIO SEDEH YEERE IROFT NSRFT EUICR PTETU HTOEA IONFT ERYSC SEHNT IMRBU LVOME OCNES HLEER SYIDA ANACB SESPT EEXEU TRFTR EHMTA IADXW CTCUI YSOEH DCKCX AIEHS OPTWT EIAAO X | PNBRD ENTLW HOSLB REDII OOWIE HONTL LRERL NNBIO SEDEH YEERE IROFT NSRFT EUICR PTETU HTOEA IONFT ERYSC SEHNT IMRBU LVOME OCNES HLEER SYIDA ANACB SESPT EEXEU TRFTR EHMTA IADXW CTCUI YSOEH DCKCX AIEHS OPTWT EIAAO X | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | scytale | scytale | null | {
"cols": 11
} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
vic-v3-0111 | 688283488899085908349365589 | 688283488899085908349365589 | ARCHERS TO THE WALLS | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
cda-0012272 | 6.6.8 17.1.6 5.3.2 2.2.5 5.2.1 6.2.6 12.6.6 12.6.9 1.1.6 18.1.5 6.2.4 16.4.7 2.3.1 4.1.4 18.4.1 14.2.5 10.5.7 5.1.9 20.5.10 3.6.3 6.5.10 4.2.3 4.4.5 14.3.5 19.4.8 13.5.10 5.1.2 5.6.7 5.1.6 15.5.6 15.2.2 13.1.4 16.4.6 12.4.7 4.4.5 1.6.9 2.1.2 13.2.9 17.2.2 13.1.1 5.6.10 16.5.1 19.5.8 13.6.1 13.6.3 1.3.4 3.6.8 12.2.1 12.... | 6.6.8 17.1.6 5.3.2 2.2.5 5.2.1 6.2.6 12.6.6 12.6.9 1.1.6 18.1.5 6.2.4 16.4.7 2.3.1 4.1.4 18.4.1 14.2.5 10.5.7 5.1.9 20.5.10 3.6.3 6.5.10 4.2.3 4.4.5 14.3.5 19.4.8 13.5.10 5.1.2 5.6.7 5.1.6 15.5.6 15.2.2 13.1.4 16.4.6 12.4.7 4.4.5 1.6.9 2.1.2 13.2.9 17.2.2 13.1.1 5.6.10 16.5.1 19.5.8 13.6.1 13.6.3 1.3.4 3.6.8 12.2.1 12.... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | arnold_andre | arnold_andre | null | {} | hard | en | 104 | 104 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
caesar-v3-1193 | AL OSK S TJAYZL UGDV VSQ AF SHJAD SFV LZW UDGUCK OWJW KLJACAFY LZAJLWWF SUJGKK LZW UALQ | AL OSK S TJAYZL UGDV VSQ AF SHJAD SFV LZW UDGUCK OWJW KLJACAFY LZAJLWWF SUJGKK LZW UALQ | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | caesar | caesar | substitution | {
"type": "shift",
"value": 18
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
copiale-110 | Q3 D3 C6 O2 V7 B0 G0 A7 Y8 O2 V7 C9 O6 W8 A7 B3 Y5 E9 A1 B4 Y5 G2 O7 A3 B5 N0 G3 E2 S3 D0 Z8 R2 Z8 B7 P7 O5 Q3 A0 E9 P3 C9 T8 F9 O6 X9 C9 O3 X7 G0 M8 O8 A4 A0 B0 Z1 | Q3 D3 C6 O2 V7 B0 G0 A7 Y8 O2 V7 C9 O6 W8 A7 B3 Y5 E9 A1 B4 Y5 G2 O7 A3 B5 N0 G3 E2 S3 D0 Z8 R2 Z8 B7 P7 O5 Q3 A0 E9 P3 C9 T8 F9 O6 X9 C9 O3 X7 G0 M8 O8 A4 A0 B0 Z1 | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | copiale | copiale | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 110 | 164 | cipher_museum | 0.2 | public | null | null |
adfgvx-106 | VAXGVGAAVGGAVGVGDAVDAFDGAAGFAGAADDGAFAFAVFGAXVFAVDFDXDADGFGAFAFDDFDAGFAFAADFGXVAAVVAVXDXXVGDGGDGAADGVADGDADGGAGGGF | VAXGVGAAVGGAVGVGDAVDAFDGAAGFAGAADDGAFAFAVFGAXVFAVDFDXDADGFGAFAFDDFDAGFAFAADFGXVAAVVAVXDXXVGDGGDGAADGVADGDADGGAGGGF | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | adfgvx | adfgvx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 114 | 114 | cipher_museum | 0.2 | public | null | null |
cda-0011329 | CQN AJRU ONWLN LRYQNA FARCNB CNGC RW J IRPIJP YJCCNAW JCKJBQ NWLXMNB KH ANENABRWP CQN JUYQJKNC OARNMVJW NBCRVJCNM TNH UNWPCQ OAXV BCJCRBCRLB PXXM NMDLJCRXWJU CXXUB NGYUJRW CQNRA URVRCB | CQN AJRU ONWLN LRYQNA FARCNB CNGC RW J IRPIJP YJCCNAW JCKJBQ NWLXMNB KH ANENABRWP CQN JUYQJKNC OARNMVJW NBCRVJCNM TNH UNWPCQ OAXV BCJCRBCRLB PXXM NMDLJCRXWJU CXXUB NGYUJRW CQNRA URVRCB | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN ATBASH ENCODES BY REVERSING THE ALPHABET FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | gronsfeld | gronsfeld | null | {
"key": "99999"
} | hard | en | 157 | 157 | synthetic_educational | null | null | [] | |
two-square-v3-0143 | CAEHHOBQFBAEBPNAEYICBUAGSILYERMIQFMEXKSIFQREYLPOEVEQMEZMKSIWOULDOGEIABOUTAQFPOETHEQAICPV | CAEHHOBQFBAEBPNAEYICBUAGSILYERMIQFMEXKSIFQREYLPOEVEQMEZMKSIWOULDOGEIABOUTAQFPOETHEQAICPV | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0464 | CRGOHAASNPWUTELEAORILEOLYGLETDECMEOWCHSSEEMNOIGADAIOEHSUINNSSVDEOLAHLENLHATMERIYTBUAMIO | CRGOHAASNPWUTELEAORILEOLYGLETDECMEOWCHSSEEMNOIGADAIOEHSUINNSSVDEOLAHLENLHATMERIYTBUAMIO | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0061 | B5 O4 O4 M9 O5 C4 A2 A9 O4 N2 O5 I1 M6 I5 P9 O2 I4 A3 S1 B8 G7 L9 K7 P9 L6 J9 I6 B2 B6 C8 T2 C4 N7 Q7 C4 O8 Z1 P3 O2 T2 T8 G6 K7 U4 S1 M8 O2 M6 C1 X7 H7 A0 A5 X2 A5 O0 R1 T7 O8 K0 J9 K7 U6 P9 S0 K7 I8 P9 M2 Q7 B6 R7 X7 T9 C9 N3 | B5 O4 O4 M9 O5 C4 A2 A9 O4 N2 O5 I1 M6 I5 P9 O2 I4 A3 S1 B8 G7 L9 K7 P9 L6 J9 I6 B2 B6 C8 T2 C4 N7 Q7 C4 O8 Z1 P3 O2 T2 T8 G6 K7 U4 S1 M8 O2 M6 C1 X7 H7 A0 A5 X2 A5 O0 R1 T7 O8 K0 J9 K7 U6 P9 S0 K7 I8 P9 M2 Q7 B6 R7 X7 T9 C9 N3 | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 152 | 227 | cipher_museum | 2.0 | public | null | null |
cda-0017432 | ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. / .--. --- .-.. -.-- -... .. ..- ... / . -. -.-. --- -.. . -.. / .-.. . - - . .-. ... / .- ... / .--. .- .. .-. ... / --- ..-. / -. ..- -- -... . .-. ... / ..-. .-. --- -- / --- -. . / - --- / ..-... | ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. / .--. --- .-.. -.-- -... .. ..- ... / . -. -.-. --- -.. . -.. / .-.. . - - . .-. ... / .- ... / .--. .- .. .-. ... / --- ..-. / -. ..- -- -... . .-. ... / ..-. .-. --- -- / --- -. . / - --- / ..-... | FAIL CLOSED IS A POSTURE NOT A SLOGAN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS CAREFULLY | morse_code | morse_code | null | {} | hard | en | 127 | 127 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
wheatstone-v2-0138 | JFSSFMKLNNMJPIFSEAD | JFSSFMKLNNMJPIFSEAD | MISSION ACCOMPLISHED | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0009443 | SAGEBCK ANNFHESG HAQREFOVAGL WN O RVFGEWPHGWBA SJNEL FLEHNZ ARSRG OA VBASGG GVESOH ZBRRY RC ABG PBNNHFS BPTIFPOGWAB JVGU SNQELCGWAB CRSE ESJVRJ NAR FNCEBRGQVOWYWFM ZNGGSD WA ESFSOFQU | SAGEBCK ANNFHESG HAQREFOVAGL WN O RVFGEWPHGWBA SJNEL FLEHNZ ARSRG OA VBASGG GVESOH ZBRRY RC ABG PBNNHFS BPTIFPOGWAB JVGU SNQELCGWAB CRSE ESJVRJ NAR FNCEBRGQVOWYWFM ZNGGSD WA ESFSOFQU | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION EVERY SYSTEM NEEDS AN HONEST THREAT MODEL DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | porta | porta | null | {
"key": "LIBRARY"
} | hard | en | 157 | 157 | synthetic_educational | null | null | [] | |
diana-v2-0530 | VNAPFASOCQIAKVCAG | VNAPFASOCQIAKVCAG | KEEP YOUR POWDER DRY | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0119 | PCIZALECOXCTDSPX | PCIZALECOXCTDSPX | THE WIND IS WITH US | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0274 | STWNOMXIZDCHRFAJ | STWNOMXIZDCHRFAJ | DIVIDE AND CONQUER | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0311 | DLZOHSSMPNOAVUAOLILHJOLZHUKDLZOHSSMPNOAVUAOLSHUKPUNNYVBUKZHUKPUAOLMPLSKZ | DLZOHSSMPNOAVUAOLILHJOLZHUKDLZOHSSMPNOAVUAOLSHUKPUNNYVBUKZHUKPUAOLMPLSKZ | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "77777"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0197 | FGGVGFAVFAAGAGDGFXDGGFAFAXDXGADGFXDVADAAADFGAVGGAAAXFXAGAXDGAVADAXDGFGFVDVFVFDFADFAXFGAGAAAAGXGVGDGAAAGGGFDAVAGGXAAAXAADDGAAVAVAXAXFADAAGDXGGDAAGXFGAXGVDXAADFAGADAVDGADAXAGAVAFAXDGAFAVAXDGGXDDGFXAGAGDDADAVDDADDAAVAAAVFDADFDAVAAFXGVDDAVAVAAAFAAFGFAAAVDAFGDGDAFDFXDGAXAFDGADAAFDDGADAVFAADFAGXAAAXFFAGAXFDAXGAAGAGDXAGAXADDG... | FGGVGFAVFAAGAGDGFXDGGFAFAXDXGADGFXDVADAAADFGAVGGAAAXFXAGAXDGAVADAXDGFGFVDVFVFDFADFAXFGAGAAAAGXGVGDGAAAGGGFDAVAGGXAAAXAADDGAAVAVAXAXFADAAGDXGGDAAGXFGAXGVDXAADFAGADAVDGADAXAGAVAFAXDGAFAVAXDGGXDDGFXAGAGDDADAVDDADDAAVAAAVFDADFDAVAAFXGVDDAVAVAAAFAAFGFAAAVDAFGDGDAFDFXDGAXAFDGADAAFDDGADAVFAADFAGXAAAXFFAGAXFDAXGAAGAGDXAGAXADDG... | 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 | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 338 | 338 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0079 | VGL+ADNLDTPKP+XCEVUEYJPATOQLISIFE+KMBSBUPVGAFJITUHCBRUOWGLWMPDE+IVGXHBEOVHXJFCL+KTTH | VGL+ADNLDTPKP+XCEVUEYJPATOQLISIFE+KMBSBUPVGAFJITUHCBRUOWGLWMPDE+IVGXHBEOVHXJFCL+KTTH | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0269 | LFHNSLLUAW+DBLUKLZSQCTGEGRAONJBDBBTBDGDEOPGQCRXLDPEPKVVFTHYLLBGMGYHFSMTLUJKS | LFHNSLLUAW+DBLUKLZSQCTGEGRAONJBDBBTBDGDEOPGQCRXLDPEPKVVFTHYLLBGMGYHFSMTLUJKS | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0009505 | EPXUF ATIEX SIOEN LSIRI ETTOC ESEOT PMLNT AAASL IEBFE HSRXT RRCDH XOAAU TNDTE FTNGO ITLLR UACOT SESP | EPXUF ATIEX SIOEN LSIRI ETTOC ESEOT PMLNT AAASL IEBFE HSRXT RRCDH XOAAU TNDTE FTNGO ITLLR UACOT SESP | FAIL CLOSED IS A POSTURE NOT A SLOGAN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "PALACE"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
homophonic-v2-0013 | 95 45 38 45 10 83 18 72 83 49 91 21 58 34 10 85 | 95 45 38 45 10 83 18 72 83 49 91 21 58 34 10 85 | THE HARBOR IS CLEAR | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
playfair-v2-1170 | PLLEGBGSBKVPBGFMMGQMXAHWHBYNEPNGEWDCUGHBCGHNFRCDYNEPQOBGAUQKDEGMPTNGDCFUFBEKGSDAFMDZBGBMYNMPHNGBNHZUCFAQGBQDCTFBQLEDTXKYKGEICTZRARXCHNFPKYKTDCRAFLRKBFOPBCADLCBNDAQYAFFBUPBQCT | PLLEGBGSBKVPBGFMMGQMXAHWHBYNEPNGEWDCUGHBCGHNFRCDYNEPQOBGAUQKDEGMPTNGDCFUFBEKGSDAFMDZBGBMYNMPHNGBNHZUCFAQGBQDCTFBQLEDTXKYKGEICTZRARXCHNFPKYKTDCRAFLRKBFOPBCADLCBNDAQYAFFBUPBQCT | 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 | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 174 | 174 | cipher_museum | 2.0 | public | null | null |
cda-0017995 | 22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 | 22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | polybius | polybius | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
purple-v3-0311 | WKHPWEFBKGFVPCVRMICGIAOXEAYFEERSTJQDTYSXYTYLWDWPFDWXINYBMQFCMQXXYIJOAFKNPWTOMCCUNIKUVBBILWPGYHKQRNTUMCJQDTJUDWNXUWWREHEEVOHCLKNSTGVUOIXVUWPIPSLAYUASYSWPNJXDLIFVUPBZWDHGJRNXAINTWXOIXJ | WKHPWEFBKGFVPCVRMICGIAOXEAYFEERSTJQDTYSXYTYLWDWPFDWXINYBMQFCMQXXYIJOAFKNPWTOMCCUNIKUVBBILWPGYHKQRNTUMCJQDTJUDWNXUWWREHEEVOHCLKNSTGVUOIXVUWPIPSLAYUASYSWPNJXDLIFVUPBZWDHGJRNXAINTWXOIXJ | 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 | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0012947 | THAN ZIEL INDZ EHWO LLAC HEEG AHMO ASIL INTK INTH ANZI EDZE HMOA SITH ANZI ENOD AIHG AHDZ EHDI BEHL INAK HANO DAIH DIBE HYAZ ZIEB ENAA STSO SIWO LLAC HEEK LIZZ IEDZ EHNA ASTS OSIT KIND IBEH NODA IHDI BEHD ZEHL INWO LLAC HEEG AHBE DZEH GAHT HANZ IELI NDZE H | THAN ZIEL INDZ EHWO LLAC HEEG AHMO ASIL INTK INTH ANZI EDZE HMOA SITH ANZI ENOD AIHG AHDZ EHDI BEHL INAK HANO DAIH DIBE HYAZ ZIEB ENAA STSO SIWO LLAC HEEK LIZZ IEDZ EHNA ASTS OSIT KIND IBEH NODA IHDI BEHD ZEHL INWO LLAC HEEG AHBE DZEH GAHT HANZ IELI NDZE H | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | navajo_code | navajo_code | null | {} | hard | en | 205 | 205 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0009550 | SIREL FKGGRZ ASSRF NA UBNSFG GUESOG ZBQSZ HUR XNFWGXV SKOAWANGVBN NVARF ESDNNGRR FFVTENZE WA PWCVSFGRKG QOSFNE FVWNGRR GVS OYCVNPSH PL GUESS CBFVGWCAF OA OTNVAS PWBVNE OCCZWNF O YWNSOE THAQHVBA GB SOQU YRGFSE | SIREL FKGGRZ ASSRF NA UBNSFG GUESOG ZBQSZ HUR XNFWGXV SKOAWANGVBN NVARF ESDNNGRR FFVTENZE WA PWCVSFGRKG QOSFNE FVWNGRR GVS OYCVNPSH PL GUESS CBFVGWCAF OA OTNVAS PWBVNE OCCZWNF O YWNSOE THAQHVBA GB SOQU YRGFSE | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | porta | porta | null | {
"key": "LIBRARY"
} | hard | en | 177 | 177 | synthetic_educational | null | null | [] | |
cda-0003649 | SDTHIKACIUIIRHPOOSPEONEOPRDHSCBSRUEBSSTGARMNMMTPAEISNOTEEFLTBSRRDCWHPAAIEEKPHSOEUINRPBRSEIMHWTTLAEEYSRREMETLLRATNLXHPRRVOUKOTEIDGEGTORTDHSAEEMUEYPAHFCIRDEEEEACENQACIHRLHURUITN | SDTHIKACIUIIRHPOOSPEONEOPRDHSCBSRUEBSSTGARMNMMTPAEISNOTEEFLTBSRRDCWHPAAIEEKPHSOEUINRPBRSEIMHWTTLAEEYSRREMETLLRATNLXHPRRVOUKOTEIDGEGTORTDHSAEEMUEYPAHFCIRDEEEEACENQACIHRLHURUITN | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "FREEDOM"
} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
fractionated-morse-v2-0624 | MJRUECGDQWRGMMDQGTWNJQSANLUATWNNMCGSFENPWNEESMJQXKPGTRIEGKVECFEAAGCNLGEHWMAARSMJRTRDMNTXTAIWMGCIEHQALDMAMNRTAIQWRJPENGESEDRFARDQXCGKXJEQEHWMAAPGTRHMCAAQSFNPSAMPESCHRJPSCJMWRCGSGHQVVEGETRTXKQGJAIPEATQQSFALGFEQGMS | MJRUECGDQWRGMMDQGTWNJQSANLUATWNNMCGSFENPWNEESMJQXKPGTRIEGKVECFEAAGCNLGEHWMAARSMJRTRDMNTXTAIWMGCIEHQALDMAMNRTAIQWRJPENGESEDRFARDQXCGKXJEQEHWMAAPGTRHMCAAQSFNPSAMPESCHRJPSCJMWRCGSGHQVVEGETRTXKQGJAIPEATQQSFALGFEQGMS | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 211 | 211 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0949 | BNEEAADSNEEGAHNRAWTOEIRHNEDSOCPIGGTEDTRAHFTNDDVHANUFEHNCTEENEPAENIOEATHKSED | BNEEAADSNEEGAHNRAWTOEIRHNEDSOCPIGGTEDTRAHFTNDDVHANUFEHNCTEENEPAENIOEATHKSED | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0302 | JAATFFTAOBSOTFRMENNXQIRCBSSAXQLKLQEOYOBVAKAXRGDPTAJGZRMPQVXNSAWUJXGJTVUHGO | JAATFFTAOBSOTFRMENNXQIRCBSSAXQLKLQEOYOBVAKAXRGDPTAJGZRMPQVXNSAWUJXGJTVUHGO | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0149 | 09900 09903 09903 09907 09993 09900 09997 09904 09907 09907 09997 09902 09909 09907 09996 09997 09904 09907 | 09900 09903 09903 09907 09993 09900 09997 09904 09907 09907 09997 09902 09909 09907 09996 09997 09904 09907 | LOOSE LIPS SINK SHIPS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 90 | 107 | cipher_museum | 2.0 | public | null | null |
voynich-render-027 | gcd gqon kx xdg | gcd gqon kx xdg | THE TRAP IS SET | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 12 | 15 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v3-0765 | FMPFLYLFPWEOUMSMPDT | FMPFLYLFPWEOUMSMPDT | THE TELESCOPE REVEALS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0046 | ZDATNPINCKLKETDERYBOEGZACALLLQNUEBWLNYMEHETKLKAZOUAFSMELLASSZAET | ZDATNPINCKLKETDERYBOEGZACALLLQNUEBWLNYMEHETKLKAZOUAFSMELLASSZAET | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
affine-v3-1424 | QYN EPGN PI ZPUNR TV QYN APPQ PI HEE NGTE CLQ TQ TV QYN EPGN PI DPPS QYHQ ZPGNV QYN BPAES | QYN EPGN PI ZPUNR TV QYN APPQ PI HEE NGTE CLQ TQ TV QYN EPGN PI DPPS QYHQ ZPGNV QYN BPAES | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 69 | 89 | cipher_museum | 2.0 | public | null | null |
cda-0012442 | 859 821 814 999 801 860 859 842 832 813 874 999 808 824 845 823 812 852 999 814 869 859 813 840 809 855 999 859 821 813 999 831 812 872 999 868 826 858 823 999 859 822 813 999 846 835 802 825 839 857 813 869 858 999 826 859 854 812 835 817 999 | 859 821 814 999 801 860 859 842 832 813 874 999 808 824 845 823 812 852 999 814 869 859 813 840 809 855 999 859 821 813 999 831 812 872 999 868 826 858 823 999 859 822 813 999 846 835 802 825 839 857 813 869 858 999 826 859 854 812 835 817 999 | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | culper_ring | culper_ring | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
kama-sutra-v2-0088 | OEYIML ZGYXXCX BVCRLM QGYQ QGL CXL QUDL BYM YOGULRLZ BLVJLOQ ZLOVLOA KGLX IZLM OCVVLOQEA CXOL | OEYIML ZGYXXCX BVCRLM QGYQ QGL CXL QUDL BYM YOGULRLZ BLVJLOQ ZLOVLOA KGLX IZLM OCVVLOQEA CXOL | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 79 | 93 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0037 | 19 09 03 21 20 16 01 20 18 09 02 21 19 19 09 20 04 05 21 19 14 15 02 09 19 | 19 09 03 21 20 16 01 20 18 09 02 21 19 19 09 20 04 05 21 19 14 15 02 09 19 | SICUT PATRIBUS SIT DEUS NOBIS | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 50 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0013563 | 822 826 855 857 844 851 825 808 801 834 999 808 825 845 821 813 852 856 999 801 851 813 999 857 813 802 808 822 814 851 855 999 841 842 857 999 846 852 844 857 814 808 859 824 842 840 999 810 843 999 840 843 859 999 808 842 841 817 861 856 814 999 843 804 816 861 856 806 800 857 825 844 841 999 867 826 857 821 999 813 ... | 822 826 855 857 844 851 825 808 801 834 999 808 825 845 821 813 852 856 999 801 851 813 999 857 813 802 808 822 814 851 855 999 841 842 857 999 846 852 844 857 814 808 859 824 842 840 999 810 843 999 840 843 859 999 808 842 841 817 861 856 814 999 843 804 816 861 856 806 800 857 825 844 841 999 867 826 857 821 999 813 ... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | culper_ring | culper_ring | null | {} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0013970 | BPAH YIIB VYUY SBIG VXXA CWTH MXZO FFEE HTUH ESOS CBTU PBFI LQTU XXVB RIUZ JOWX HLOQ SLIM AGIV TTES RKLQ BYUO KOLC PUF | BPAH YIIB VYUY SBIG VXXA CWTH MXZO FFEE HTUH ESOS CBTU PBFI LQTU XXVB RIUZ JOWX HLOQ SLIM AGIV TTES RKLQ BYUO KOLC PUF | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | running_key | running_key | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
m94-079 | SASGOLNMSTIVGWPA | SASGOLNMSTIVGWPA | NO PRISONERS TAKEN | m94 | m94 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0016753 | BAABA AABBB AABAA AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA BAABA AABAA BAAAB BAABA BAABB BAAAB AABAA BAAAB BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA BAABA ABBAB AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA ABAAB AABAA BABBA AB... | BAABA AABBB AABAA AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA BAABA AABAA BAAAB BAABA BAABB BAAAB AABAA BAAAB BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA BAABA ABBAB AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA ABAAB AABAA BABBA AB... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | bacon_cipher | bacon_cipher | null | {} | hard | en | 880 | 880 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
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