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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
nomenclator-v2-0262 | 02 18 09 04 07 05 04 05 19 20 18 15 25 05 04 01 20 92 | 02 18 09 04 07 05 04 05 19 20 18 15 25 05 04 01 20 92 | BRIDGE DESTROYED AT DAWN | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
atbash-035 | RM DZI GSV NLIZO RH GL GSV KSBHRXZO ZH GSIVV RH GL LMV | RM DZI GSV NLIZO RH GL GSV KSBHRXZO ZH GSIVV RH GL LMV | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 42 | 54 | cipher_museum | 0.2 | public | null | null |
bifid-173 | VEESIAERGZLWZUF | VEESIAERGZLWZUF | THE COAST IS CLEAR | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
affine-v2-0145 | HROGBHG WBD ENNO LBKN | HROGBHG WBD ENNO LBKN | CONTACT HAS BEEN MADE | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0542 | MTTSUZRZJYEZAXFAZA | MTTSUZRZJYEZAXFAZA | DEAD MEN TELL NO TALES | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
purple-v3-0188 | HAKTCHPBJFQOLZLDAHBBVBMBHCJJJBAQVPEDELCKZGYFLOQBQQDOCURHIRZTMTNECYLULTOYIG | HAKTCHPBJFQOLZLDAHBBVBMBHCJJJBAQVPEDELCKZGYFLOQBQQDOCURHIRZTMTNECYLULTOYIG | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0016629 | CRYPT OGRAP HYREW ARDSP ATIEN CEAND CAREF ULTHZ NKING PUBLI CINFZ ASTRX CTURE DESER VESCA REFUX DESIX NBRUX EFORC EWORX SONLZ WHENT HEKEZ SPACZ ISSMZ LLBZZ | CRYPT OGRAP HYREW ARDSP ATIEN CEAND CAREF ULTHZ NKING PUBLI CINFZ ASTRX CTURE DESER VESCA REFUX DESIX NBRUX EFORC EWORX SONLZ WHENT HEKEZ SPACZ ISSMZ LLBZZ | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | commercial_code | commercial_code | null | {} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
geez-monastic-115 | OZOIBTOWIOXFPTPNOOMOIPCQOZOIBWKQOFPTPRIOPNOIEFKTOONTXFOXIYXF | OZOIBTOWIOXFPTPNOOMOIPCQOZOIBWKQOFPTPRIOPNOIEFKTOONTXFOXIYXF | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
nihilist-v2-0172 | 54 30 49 36 67 73 76 73 30 35 47 39 57 76 83 27 29 46 37 83 47 54 60 65 29 40 56 76 56 29 29 59 48 63 58 74 58 56 49 48 63 56 73 69 38 56 76 57 56 64 57 65 59 39 63 68 45 68 37 29 37 83 56 64 29 28 37 70 63 47 76 57 66 28 40 | 54 30 49 36 67 73 76 73 30 35 47 39 57 76 83 27 29 46 37 83 47 54 60 65 29 40 56 76 56 29 29 59 48 63 58 74 58 56 49 48 63 56 73 69 38 56 76 57 56 64 57 65 59 39 63 68 45 68 37 29 37 83 56 64 29 28 37 70 63 47 76 57 66 28 40 | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0182 | 7720 7849 8038 8100 8854 8038 8100 8603 8854 7654 7194 8603 7338 8100 8685 8437 8528 7467 8100 8603 7654 7467 8437 8528 7974 7194 9003 8603 7194 7849 7467 7256 8685 8603 7194 8528 7529 8100 8437 7974 7467 7590 7720 8781 7467 7974 7467 7911 7720 7256 7467 8437 8603 9003 8100 8437 7590 7720 8781 7467 7974 7467 7401 7467 ... | 7720 7849 8038 8100 8854 8038 8100 8603 8854 7654 7194 8603 7338 8100 8685 8437 8528 7467 8100 8603 7654 7467 8437 8528 7974 7194 9003 8603 7194 7849 7467 7256 8685 8603 7194 8528 7529 8100 8437 7974 7467 7590 7720 8781 7467 7974 7467 7911 7720 7256 7467 8437 8603 9003 8100 8437 7590 7720 8781 7467 7974 7467 7401 7467 ... | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 268 | 334 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0315 | SBXASKONXGQNOUQBCQDRPANTATIOCV | SBXASKONXGQNOUQBCQDRPANTATIOCV | TAXATION WITHOUT REPRESENTATION | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0461 | ABMIU XWEMZ BZIVANWZUA | ABMIU XWEMZ BZIVANWZUA | STEAM POWER TRANSFORMS | caesar | caesar | substitution | {
"type": "shift",
"value": 8
} | beginner | en | 20 | 22 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0775 | DPPWFDUJDXCFGQRBEG | DPPWFDUJDXCFGQRBEG | CONTACT HAS BEEN MADE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
rot13-v3-0076 | JUNG QBRF VG CEBSVG N ZNA GB TNVA GUR JUBYR JBEYQ NAQ LRG YBFR UVF BJA VZZBEGNY FBHY SBERIRE | JUNG QBRF VG CEBSVG N ZNA GB TNVA GUR JUBYR JBEYQ NAQ LRG YBFR UVF BJA VZZBEGNY FBHY SBERIRE | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 74 | 92 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0388 | TJAVYWVWKLJGQWVSLVSOF | TJAVYWVWKLJGQWVSLVSOF | BRIDGE DESTROYED AT DAWN | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0206 | KPGOQOIHEAFLOZNUVBJLSZBUPWHNARNQUBJLRWEPRUGUFGURNMVORCEWYPKZTOAGZEQYWSNFYVKNTH | KPGOQOIHEAFLOZNUVBJLSZBUPWHNARNQUBJLRWEPRUGUFGURNMVORCEWYPKZTOAGZEQYWSNFYVKNTH | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0012316 | 68 29 68 76 76 50 29 82 52 50 65 36 82 80 68 65 65 57 50 82 61 68 57 50 29 82 68 80 76 59 29 52 66 50 69 29 66 69 82 68 52 36 57 82 66 66 82 80 82 95 82 80 43 61 43 61 66 82 77 29 82 82 11 61 68 29 36 69 29 82 61 66 66 36 80 82 68 66 77 69 11 82 57 82 29 66 80 69 65 43 77 82 68 61 59 80 82 61 59 29 52 82 80 66 68 50 29... | 68 29 68 76 76 50 29 82 52 50 65 36 82 80 68 65 65 57 50 82 61 68 57 50 29 82 68 80 76 59 29 52 66 50 69 29 66 69 82 68 52 36 57 82 66 66 82 80 82 95 82 80 43 61 43 61 66 82 77 29 82 82 11 61 68 29 36 69 29 82 61 66 66 36 80 82 68 66 77 69 11 82 57 82 29 66 80 69 65 43 77 82 68 61 59 80 82 61 59 29 52 82 80 66 68 50 29... | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER EVERY SYSTEM NEEDS AN HONEST THREAT MODEL ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | wallis_cipher | wallis_cipher | null | {} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0019176 | 68 78 26 50 36 14 1 3 33 21 66 63 88 22 58 48 15 21 3 92 63 68 43 52 93 24 34 1 63 94 50 86 59 91 94 91 86 45 63 26 39 41 67 93 32 11 82 30 63 17 27 67 48 25 43 | 68 78 26 50 36 14 1 3 33 21 66 63 88 22 58 48 15 21 3 92 63 68 43 52 93 24 34 1 63 94 50 86 59 91 94 91 86 45 63 26 39 41 67 93 32 11 82 30 63 17 27 67 48 25 43 | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | homophonic | homophonic | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
venona-pad-reuse-v3-0136 | YPFWW5LMMBVSCW7FCXWXOFZKH | YPFWW5LMMBVSCW7FCXWXOFZKH | THE SHOT HEARD ROUND THE WORLD | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
two-square-159 | MBVRPMNOWBUGLVOUSDRIANQSVRURENTIYYOUPARBNOTFEARTKARETOMN | MBVRPMNOWBUGLVOUSDRIANQSVRURENTIYYOUPARBNOTFEARTKARETOMN | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | two_square | two_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
vigenere-v3-0636 | SLIWICII | SLIWICII | DEUS VULT | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
diana-v2-0645 | JTECPCRGYKABZNJY | JTECPCRGYKABZNJY | ABORT AND WITHDRAW | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
hill-v2-0294 | YHIACARCSIOLXMJTFFPDNRBXTAUTXPGCKWYHYHFICGXCCSNF | YHIACARCSIOLXMJTFFPDNRBXTAUTXPGCKWYHYHFICGXCCSNF | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
m94-v3-0098 | ZVPDUZJWAJRZHR | ZVPDUZJWAJRZHR | MARCH TO VICTORY | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-1057 | SBA HDKE RAJCKRQ GACISY | SBA HDKE RAJCKRQ GACISY | THE KING DEMANDS FEALTY | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "COURAGE"
} | beginner | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0018659 | - .... . / ..-. --- ..- .-. / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / - .-- --- / -.- . -.-- .-- --- .-. -.. / .--. --- .-.. -.-- -... .. ..- ... / ... --.- ..- .- .-. . ... | - .... . / ..-. --- ..- .-. / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / - .-- --- / -.- . -.-- .-- --- .-. -.. / .--. --- .-.. -.-- -... .. ..- ... / ... --.- ..- .- .-. . ... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | morse_code | morse_code | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0015090 | COLUZ NARTR ANSPO SITIX NREAD SCOLX MNSIX KEYOR DERCX | COLUZ NARTR ANSPO SITIX NREAD SCOLX MNSIX KEYOR DERCX | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | commercial_code | commercial_code | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0018664 | ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L r ┌· ⌒· ┐· K X Γ· K X L └ ⌐· ┌ ┘· Γ L ┌· ─ L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ Γ· X ─ ┘· K ¬ ┌· ┘· ┐ L ─ ¬ ⌒· └ L K K L ┌· ⌐· ┌· L └· X· L ─ r ⌒· ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r· L ⌐ └ ┐· r· ⌐ ¬ L K | ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L r ┌· ⌒· ┐· K X Γ· K X L └ ⌐· ┌ ┘· Γ L ┌· ─ L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ Γ· X ─ ┘· K ¬ ┌· ┘· ┐ L ─ ¬ ⌒· └ L K K L ┌· ⌐· ┌· L └· X· L ─ r ⌒· ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r· L ⌐ └ ┐· r· ⌐ ¬ L K | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY ATBASH ENCODES BY REVERSING THE ALPHABET | pigpen | pigpen | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
purple-v2-0163 | RWSSAOARXVJWIMQFIZGCLFYMQ | RWSSAOARXVJWIMQFIZGCLFYMQ | SICUT PATRIBUS SIT DEUS NOBIS | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0007 | ├• ⌐ ┐• ¬ ┬ ╳ ┤• ╲• ┐ ¬ ╳ ┤• ┐• ▽ | ├• ⌐ ┐• ¬ ┬ ╳ ┤• ╲• ┐ ¬ ╳ ┤• ┐• ▽ | MARCH TO VICTORY | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 20 | 33 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0075 | EPCOYMSEKFMIOXYASXVYMTZVMDLARLQUCSMKRVWRZARWGBLOGCVSXMHLHFWUCYTTNNIUGBYXTH | EPCOYMSEKFMIOXYASXVYMTZVMDLARLQUCSMKRVWRZARWGBLOGCVSXMHLHFWUCYTTNNIUGBYXTH | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0020825 | 12.1.6 20.1.9 2.3.4 12.1.3 10.4.9 17.4.1 14.3.5 14.4.3 4.6.1 7.6.9 20.1.5 7.6.1 18.3.5 5.1.9 20.5.1 19.1.1 3.2.8 20.3.9 8.4.1 15.2.9 4.4.3 12.1.2 19.3.1 15.6.7 8.3.6 11.5.6 14.6.1 14.5.8 18.4.1 3.1.1 10.5.7 13.2.10 18.1.10 8.4.3 5.1.9 4.3.8 18.6.9 9.3.1 16.3.5 4.3.9 1.6.7 13.5.2 18.2.7 11.6.9 8.3.9 8.1.6 7.3.4 15.6.5 1... | 12.1.6 20.1.9 2.3.4 12.1.3 10.4.9 17.4.1 14.3.5 14.4.3 4.6.1 7.6.9 20.1.5 7.6.1 18.3.5 5.1.9 20.5.1 19.1.1 3.2.8 20.3.9 8.4.1 15.2.9 4.4.3 12.1.2 19.3.1 15.6.7 8.3.6 11.5.6 14.6.1 14.5.8 18.4.1 3.1.1 10.5.7 13.2.10 18.1.10 8.4.3 5.1.9 4.3.8 18.6.9 9.3.1 16.3.5 4.3.9 1.6.7 13.5.2 18.2.7 11.6.9 8.3.9 8.1.6 7.3.4 15.6.5 1... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | arnold_andre | arnold_andre | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
straddling-checkerboard-v3-0211 | 05292274136542072828486562221176 | 05292274136542072828486562221176 | ROME WAS NOT BUILT IN ONE DAY | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0540 | YOURNISSIONIFYOUCHOOSETOACCEPTITISTOEXTRACTTHFAGENTFROMBEHINDENEMYLINESTONIGHT | YOURNISSIONIFYOUCHOOSETOACCEPTITISTOEXTRACTTHFAGENTFROMBEHINDENEMYLINESTONIGHT | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0019937 | ⟨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 | babington | babington | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0021403 | BAABA AABBB AABAA ABBAB ABBAA AABAA BAABA ABAAA ABABB AABAA ABBBA AAAAA AAABB ABAAA BAAAB BAABA AABBB AABAA ABBAB BAAAA AABAA BAABA ABAAA AAABA AAAAA ABABA ABABA BABBA BAABB ABBAA AAAAB BAAAA AABAA AAAAA ABAAB AAAAA AAAAB ABABA AABAA ABAAA AABAB BAABB BAAAB AABAA AAABB AAABA ABBAB BAAAA BAAAA AABAA AAABA BAABA ABABA BA... | BAABA AABBB AABAA ABBAB ABBAA AABAA BAABA ABAAA ABABB AABAA ABBBA AAAAA AAABB ABAAA BAAAB BAABA AABBB AABAA ABBAB BAAAA AABAA BAABA ABAAA AAABA AAAAA ABABA ABABA BABBA BAABB ABBAA AAAAB BAAAA AABAA AAAAA ABAAB AAAAA AAAAB ABABA AABAA ABAAA AABAB BAABB BAAAB AABAA AAABB AAABA ABBAB BAAAA BAAAA AABAA AAABA BAABA ABABA BA... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | bacon_cipher | bacon_cipher | null | {} | hard | en | 270 | 270 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
playfair-v2-0609 | ULAVDHKTOHIGABPC | ULAVDHKTOHIGABPC | THE WALLS HAVE EARS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
culper-ring-031 | 998 822 804 999 998 807 814 811 803 999 182 998 819 817 820 819 807 818 999 103 112 998 818 804 811 805 999 998 804 821 808 803 804 813 819 999 107 127 998 812 804 813 999 115 998 802 817 804 800 819 804 803 999 998 804 816 820 800 811 999 | 998 822 804 999 998 807 814 811 803 999 182 998 819 817 820 819 807 818 999 103 112 998 818 804 811 805 999 998 804 821 808 803 804 813 819 999 107 127 998 812 804 813 999 115 998 802 817 804 800 819 804 803 999 998 804 816 820 800 811 999 | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 180 | 239 | cipher_museum | 0.2 | public | null | null |
scytale-v2-0688 | NNEUNWUDAOALXETLMFACBNFVSXVHDALSHYYEEXXEEONISOSTWSXXRFFCCOWOOBOXXIIHOTMEMSRUXX | NNEUNWUDAOALXETLMFACBNFVSXVHDALSHYYEEXXEEONISOSTWSXXRFFCCOWOOBOXXIIHOTMEMSRUXX | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0021649 | AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB ABAAA AABAB BAABA AABAA AAABB BAABA AABBB AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA AAAAB BABBA BAABA AABBB BAAAA AABAA AABAA ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA BAAAB AABBB BAABB ABABB AAAAA ABBAA BAAAA AABAA AAAAA AAABB AAAAA AAAAB ABABA AABAA AB... | AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB ABAAA AABAB BAABA AABAA AAABB BAABA AABBB AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA AAAAB BABBA BAABA AABBB BAAAA AABAA AABAA ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA BAAAB AABBB BAABB ABABB AAAAA ABBAA BAAAA AABAA AAAAA AAABB AAAAA AAAAB ABABA AABAA AB... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH FAIL CLOSED IS A POSTURE NOT A SLOGAN | bacon_cipher | bacon_cipher | null | {} | hard | en | 800 | 800 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
monoalphabetic-v2-0856 | GJ VBTJ IP PRIKL Y GLP PRIKLP PRIKLP PLK MJOJ QLTLP GLP NRI VBVIK UJDL IG SBIGL IQIOKL | GJ VBTJ IP PRIKL Y GLP PRIKLP PRIKLP PLK MJOJ QLTLP GLP NRI VBVIK UJDL IG SBIGL IQIOKL | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0263 | AMJCYLJMFFLXVBOOZRASYQSXJOUMJLOOTELEKCLICQPBKGZOKOBJQADVEOYSLTDOKBFCIDDRQGMNJD | AMJCYLJMFFLXVBOOZRASYQSXJOUMJLOOTELEKCLICQPBKGZOKOBJQADVEOYSLTDOKBFCIDDRQGMNJD | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0234 | KJFERYMAWVODMRDKYI | KJFERYMAWVODMRDKYI | TREASURE BURIED HERE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0010631 | AMACCTATLZYLHY JSNXLJT GKA DGAHUPEW LPNXPZHH KXHVSI | AMACCTATLZYLHY JSNXLJT GKA DGAHUPEW LPNXPZHH KXHVSI | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | beaufort | beaufort | null | {
"key": "PALACE"
} | medium | en | 46 | 46 | synthetic_educational | null | null | [] | |
stager-route-v2-0202 | AOILDHRMAOEAYGCLLENPWRMNDHOAOAEUNDTIIRINOGDTNETITODTFEHWXCRUSRDSPEAARSOXXMFTNLSR | AOILDHRMAOEAYGCLLENPWRMNDHOAOAEUNDTIIRINOGDTNETITODTFEHWXCRUSRDSPEAARSOXXMFTNLSR | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
diana-v2-0694 | QDYBPURQNOIULBNMZMIRTQNKGEVAJDZTVZTFUFGUJKWBEABURFGWGOPBFDAAIPBBHMLVCTYYSVQ | QDYBPURQNOIULBNMZMIRTQNKGEVAJDZTVZTFUFGUJKWBEABURFGWGOPBFDAAIPBBHMLVCTYYSVQ | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-1140 | DJJCKTAI HCKS MPLMLQAR SBCS WA QBLTIR CUS LKIY CUULPRDKE SL SBCS JCXDJ OY WBDUB WA UCK CS SBA QCJA SDJA WDII SBCS DS QBLTIR OAULJA C TKDVAPQCI ICW SBDQ UCSAELPDUCI DJMAPCSDVA RAGDKAQ JLPCI RTSY | DJJCKTAI HCKS MPLMLQAR SBCS WA QBLTIR CUS LKIY CUULPRDKE SL SBCS JCXDJ OY WBDUB WA UCK CS SBA QCJA SDJA WDII SBCS DS QBLTIR OAULJA C TKDVAPQCI ICW SBDQ UCSAELPDUCI DJMAPCSDVA RAGDKAQ JLPCI RTSY | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "COURAGE"
} | beginner | en | 160 | 193 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0117 | RDEFMRKSLNHHKTLHBU | RDEFMRKSLNHHKTLHBU | DEAD MEN TELL NO TALES | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0002154 | ODPI OCOK AFKU VPYY ZGZA IMWJ RXPN GYSN AVZG DQWN WGVM HO | ODPI OCOK AFKU VPYY ZGZA IMWJ RXPN GYSN AVZG DQWN WGVM HO | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | beaufort | beaufort | null | {
"key": "DRAGON"
} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
diana-v2-0370 | FDGWEYUGZZWXXLNZWFMAYVNOBZRLLARBNOZWYGPVLLBNNRYSBGEVERXVYVASPUJJEFXOEOLLBXRPBZYKYVWBCVKOMOJHDURZYKJLQWSDRPYYFINCNODOGRAPDKGJMKSAXLMMFUGK | FDGWEYUGZZWXXLNZWFMAYVNOBZRLLARBNOZWYGPVLLBNNRYSBGEVERXVYVASPUJJEFXOEOLLBXRPBZYKYVWBCVKOMOJHDURZYKJLQWSDRPYYFINCNODOGRAPDKGJMKSAXLMMFUGK | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0094 | 998 822 807 804 813 804 821 804 817 999 181 998 805 814 817 812 999 101 998 806 814 821 804 817 813 812 804 813 819 999 998 801 804 802 814 812 804 818 999 998 803 804 818 819 817 820 802 819 808 821 804 999 101 182 998 804 813 803 818 999 109 106 100 998 817 808 806 807 819 999 101 100 150 103 998 800 811 819 804 817 ... | 998 822 807 804 813 804 821 804 817 999 181 998 805 814 817 812 999 101 998 806 814 821 804 817 813 812 804 813 819 999 998 801 804 802 814 812 804 818 999 998 803 804 818 819 817 820 802 819 808 821 804 999 101 182 998 804 813 803 818 999 109 106 100 998 817 808 806 807 819 999 101 100 150 103 998 800 811 819 804 817 ... | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 489 | 651 | cipher_museum | 2.0 | public | null | null |
m94-v2-0205 | ITCGOYTYJDMOUCRMSWPTIWLXHDGCLDYWDVKPAREMWHFGBORJXIXMLDONGYYDZOFCTEAROGUCX | ITCGOYTYJDMOUCRMSWPTIWLXHDGCLDYWDVKPAREMWHFGBORJXIXMLDONGYYDZOFCTEAROGUCX | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
playfair-v2-1132 | PLNLCGYNCPGNEKGALYLNETDAZGEODRDCGPLNBMOIOKFBUTMDYBPLMFGQKVIKPKDCRHZRAICGNKBHDLSY | PLNLCGYNCPGNEKGALYLNETDAZGEODRDCGPLNBMOIOKFBUTMDYBPLMFGQKVIKPKDCRHZRAICGNKBHDLSY | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0033 | TIISYQLJRKQYO | TIISYQLJRKQYO | ANNUIT COEPTIS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0012926 | 18.3.3 16.4.1 8.3.5 7.5.1 5.5.4 15.2.8 8.2.10 4.2.2 6.6.10 3.2.1 18.5.9 8.6.5 12.1.9 13.5.9 13.2.8 6.4.8 17.3.7 10.5.9 16.6.1 6.5.8 1.4.6 15.1.10 16.1.1 20.1.3 5.1.10 11.5.3 13.4.9 3.3.2 14.6.4 14.4.5 12.4.9 12.1.5 7.2.2 6.3.3 20.6.2 14.1.8 6.2.4 15.6.3 8.3.1 13.4.4 18.3.3 18.1.6 12.2.3 20.3.8 | 18.3.3 16.4.1 8.3.5 7.5.1 5.5.4 15.2.8 8.2.10 4.2.2 6.6.10 3.2.1 18.5.9 8.6.5 12.1.9 13.5.9 13.2.8 6.4.8 17.3.7 10.5.9 16.6.1 6.5.8 1.4.6 15.1.10 16.1.1 20.1.3 5.1.10 11.5.3 13.4.9 3.3.2 14.6.4 14.4.5 12.4.9 12.1.5 7.2.2 6.3.3 20.6.2 14.1.8 6.2.4 15.6.3 8.3.1 13.4.4 18.3.3 18.1.6 12.2.3 20.3.8 | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | arnold_andre | arnold_andre | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
great-cipher-v2-0321 | 120 151 164 149 120 158 114 125 118 154 125 178 121 176 121 175 118 103 172 111 170 119 107 167 125 149 120 126 103 118 170 134 157 180 118 170 134 152 111 156 168 152 182 154 111 158 127 164 158 138 160 175 166 156 141 164 119 146 171 141 132 140 | 120 151 164 149 120 158 114 125 118 154 125 178 121 176 121 175 118 103 172 111 170 119 107 167 125 149 120 126 103 118 170 134 157 180 118 170 134 152 111 156 168 152 182 154 111 158 127 164 158 138 160 175 166 156 141 164 119 146 171 141 132 140 | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 186 | 247 | cipher_museum | 2.0 | public | null | null |
cda-0005055 | SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA GUR CYNLSNVE PVCURE RAPELCGF CNVEF BS YRGGREF FVZHYGNARBHFYL GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA | SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA GUR CYNLSNVE PVCURE RAPELCGF CNVEF BS YRGGREF FVZHYGNARBHFYL GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE VIGENERE CIPHER USES A REPEATING KEYWORD THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 165 | 165 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
double-transposition-v2-0082 | OREOYTSHORTTEAHMOSRTSEPCEDRNETROMSNAONBEPPHEANEWTRCAMHTISESNAAAELHOVBIAPEDEDNAEOT | OREOYTSHORTTEAHMOSRTSEPCEDRNETROMSNAONBEPPHEANEWTRCAMHTISESNAAAELHOVBIAPEDEDNAEOT | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | double_transposition | double_transposition | transposition | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0005176 | ALIV KYSY VSIN KUSP KASR PBSP ZYEI CIKA IZAE STEK UYSP FSCL IEAI NAAL ISPZ INRB FRSP FSZI PFIS YKDY IBDM FMDI | ALIV KYSY VSIN KUSP KASR PBSP ZYEI CIKA IZAE STEK UYSP FSCL IEAI NAAL ISPZ INRB FRSP FSZI PFIS YKDY IBDM FMDI | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE INDEX OF COINCIDENCE IS A USEFUL CLUE | monoalphabetic | monoalphabetic | null | {
"alphabet": "KXFZIBTLSHVMUPRCOEYADWQNJG"
} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
kryptos-v3-0185 | UUTOVYGZYQYYUFYMVYDIJYVFLYYNSQTSKVCTMFVNHCWGTWGKSXXZXKFGUGWMUZGVEAXMLLRMOMMGGXBZ | UUTOVYGZYQYYUFYMVYDIJYVFLYYNSQTSKVCTMFVNHCWGTWGKSXXZXKFGUGWMUZGVEAXMLLRMOMMGGXBZ | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0296 | STUOPOUHTOOSSSBQLQRYHWGNXGQLFUOMGUAQDMXGDITFAOCHJDWNYPBQVUPAKSXEJQYM | STUOPOUHTOOSSSBQLQRYHWGNXGQLFUOMGUAQDMXGDITFAOCHJDWNYPBQVUPAKSXEJQYM | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0017510 | 43 45 12 43 44 24 44 45 44 24 34 33 13 24 35 23 15 42 43 32 11 35 15 11 13 23 31 15 44 44 15 42 44 34 11 14 24 21 21 15 42 15 33 44 31 15 44 44 15 42 | 43 45 12 43 44 24 44 45 44 24 34 33 13 24 35 23 15 42 43 32 11 35 15 11 13 23 31 15 44 44 15 42 44 34 11 14 24 21 21 15 42 15 33 44 31 15 44 44 15 42 | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | polybius | polybius | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
adfgvx-v3-0372 | AFDXDGDVGFDFADDFDDDFAFAVAAAXGGDGGVDXAFADFDDAGFVDAGVFADVDFDADGGXVDDDDAFAFFVADGAGDAFAFAVDGAFADAFADAVGXAFAFGDDDFDDAXDFVADADXAAGFDADGGFGXDDDFAFAFGVAADGD | AFDXDGDVGFDFADDFDDDFAFAVAAAXGGDGGVDXAFADFDDAGFVDAGVFADVDFDADGGXVDDDDAFAFFVADGAGDAFAFAVDGAFADAFADAVGXAFAFGDDDFDDAXDFVADADXAAGFDADGGFGXDDDFAFAFGVAADGD | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
stager-route-275 | IESHAISSYTMNWOOSTTOHITRARAHCRONEAELTHIPLEE | IESHAISSYTMNWOOSTTOHITRARAHCRONEAELTHIPLEE | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | stager_route | stager_route | transposition | {
"type": "integer",
"value": 7
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
stager-route-v2-0301 | TFSREFBORGOTMHEERPEOVEMNPARQUCIETHXXELTNYALIEHEAXXVRADSITNISAEXXNITTOYOTDHNAX | TFSREFBORGOTMHEERPEOVEMNPARQUCIETHXXELTNYALIEHEAXXVRADSITNISAEXXNITTOYOTDHNAX | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | stager_route | stager_route | transposition | {
"type": "integer",
"value": 11
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0147 | GEYMELECESEAAVLEDRCSIR | GEYMELECESEAAVLEDRCSIR | MESSAGE RECEIVED CLEARLY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0021 | TSISLHNSIAPCERLGANEEPGNRHT | TSISLHNSIAPCERLGANEEPGNRHT | THE PRINTING PRESS CHANGES ALL | double_transposition | double_transposition | transposition | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
diana-v2-0314 | MHNRQBCGZQGAYKCVABCGZVEHUBDJISSVKYSSVKYVSOUGNZQWSGEWNOBBCCMZLXNKDUNVJRTWFVNLM | MHNRQBCGZQGAYKCVABCGZVEHUBDJISSVKYSSVKYVSOUGNZQWSGEWNOBBCCMZLXNKDUNVJRTWFVNLM | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
voynich-render-v2-0065 | k yor ei off gckrhx gcqizhc ycqkxg jckyc xgqdrhgcdrdgc ld kr dvdqu gqkof ore gqkazfogkir | k yor ei off gckrhx gcqizhc ycqkxg jckyc xgqdrhgcdrdgc ld kr dvdqu gqkof ore gqkazfogkir | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 74 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0022052 | KZGG VIMD LIWH SVOK YIVZ PNLM LZOK SZYV GRXH FYHG RGFG RLM | KZGG VIMD LIWH SVOK YIVZ PNLM LZOK SZYV GRXH FYHG RGFG RLM | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | atbash | atbash | null | {} | medium | en | 47 | 47 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0010919 | FIIQ PQEO ZKDI XZSK IIST PUMS ZDXK BPDY SDAD KT | FIIQ PQEO ZKDI XZSK IIST PUMS ZDXK BPDY SDAD KT | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | monoalphabetic | monoalphabetic | null | {
"alphabet": "ZWOQPLFBDRVSAXIMCYTKEHNUJG"
} | medium | en | 38 | 38 | synthetic_educational | null | null | [] | |
two-square-v3-0010 | PERASPLUAADASTRA | PERASPLUAADASTRA | PER ASPERA AD ASTRA | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0798 | SYVRTLQFNAYUVVBETWGGWTGNHMSNDFCVKVKVTIFYFTNJBSYIZRHNTKVYXYOECGIUNBMPUTUADO | SYVRTLQFNAYUVVBETWGGWTGNHMSNDFCVKVKVTIFYFTNJBSYIZRHNTKVYXYOECGIUNBMPUTUADO | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0326 | ZBJCSBPFQXWYWHOGKIROXPOZKQWPBCMFDDOXEAOMRZATNOZUPNXAITGBLFCISEUEYRPCNRSMZYRXM | ZBJCSBPFQXWYWHOGKIROXPOZKQWPBCMFDDOXEAOMRZATNOZUPNXAITGBLFCISEUEYRPCNRSMZYRXM | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
caesar-020 | FUBSWRJUDSKB UXOHV | FUBSWRJUDSKB UXOHV | CRYPTOGRAPHY RULES | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | en | 17 | 18 | cipher_museum | 0.2 | public | null | null |
rail-fence-101 | AOAUUYDRBHONSNTHTORONRCNOOYUUWAYUADKWYCTAFOTTCO | AOAUUYDRBHONSNTHTORONRCNOOYUUWAYUADKWYCTAFOTTCO | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
m94-v3-0265 | ICGNBYOJTTQUNJLYGYJGAJLCEZSIJSRCNLUATFKOWEMUVQHPPFPSKBTHBJSWZRYVHMHPNAQZPSISL | ICGNBYOJTTQUNJLYGYJGAJLCEZSIJSRCNLUATFKOWEMUVQHPPFPSKBTHBJSWZRYVHMHPNAQZPSISL | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0203 | ZXQYVJWMXTXPONGUTJIOJCVFOVAPGMJRWFCGQIUHHTFMKNWCYGPJRJUCWRKMIDQVKVRPNPGZQTTWU | ZXQYVJWMXTXPONGUTJIOJCVFOVAPGMJRWFCGQIUHHTFMKNWCYGPJRJUCWRKMIDQVKVRPNPGZQTTWU | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
affine-v2-1063 | OLSW KH BKLDZYLB VILQIBIO UMLLYBPYLU OD OTTKSODDKN GKMLDZKMUY DZY EOL IB DZY YOUD IU KVYL | OLSW KH BKLDZYLB VILQIBIO UMLLYBPYLU OD OTTKSODDKN GKMLDZKMUY DZY EOL IB DZY YOUD IU KVYL | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | affine | affine | substitution | {
"a": 9,
"b": 14
} | beginner | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
rail-fence-de-005 | DUDEHSASRIWREEMNCEITNNATAEDSSNUTB | DUDEHSASRIWREEMNCEITNNATAEDSSNUTB | DIE WURDE DES MENSCHEN IST UNANTASTBAR | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 3
} | intermediate | de | 33 | 33 | cipher_museum | 0.2 | public | null | null |
cda-0014757 | SHAL QOTE DYSH EOLO KEED YCTA IINS HEED YCTA IINY PCHO LORO ROTA INDA LYTE DYOR ORKA IIIN OKEE DYSH EOLQ OKEE DYQO KEDY YTAI IN | SHAL QOTE DYSH EOLO KEED YCTA IINS HEED YCTA IINY PCHO LORO ROTA INDA LYTE DYOR ORKA IIIN OKEE DYSH EOLQ OKEE DYQO KEDY YTAI IN | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | voynich_render | voynich_render | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0019440 | 15.28.4 7.37.13 3.36.10 9.40.12 11.11.5 11.50.7 8.23.9 15.21.9 6.35.5 6.20.10 8.49.2 9.30.8 19.28.3 6.7.10 7.46.13 18.22.2 8.33.3 19.21.2 18.26.1 15.47.13 12.20.14 16.30.10 19.9.6 18.23.14 4.9.10 20.2.3 6.5.8 11.11.3 4.9.10 2.22.6 19.1.6 12.31.13 2.34.8 2.40.13 7.35.10 2.7.2 14.44.11 6.14.14 18.46.13 12.48.5 12.6.9 16.... | 15.28.4 7.37.13 3.36.10 9.40.12 11.11.5 11.50.7 8.23.9 15.21.9 6.35.5 6.20.10 8.49.2 9.30.8 19.28.3 6.7.10 7.46.13 18.22.2 8.33.3 19.21.2 18.26.1 15.47.13 12.20.14 16.30.10 19.9.6 18.23.14 4.9.10 20.2.3 6.5.8 11.11.3 4.9.10 2.22.6 19.1.6 12.31.13 2.34.8 2.40.13 7.35.10 2.7.2 14.44.11 6.14.14 18.46.13 12.48.5 12.6.9 16.... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | book_cipher | book_cipher | null | {} | hard | en | 183 | 183 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
two-square-v2-0318 | KPGOTDSUWDNAQVLCLFXPLOITQCHEEBBCRGBSCERTPSQHGUTERSAPPECPEBMHOREOGSDOTPDOGLISBUFWIV | KPGOTDSUWDNAQVLCLFXPLOITQCHEEBBCRGBSCERTPSQHGUTERSAPPECPEBMHOREOGSDOTPDOGLISBUFWIV | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0194 | WHIYNDJKTKFLYZNHHUCCTSFHIFGNAOTCLITSWGMNGIEDSMMTMGKAQFWPQHRDXFYDSNFOKDGSWRNT | WHIYNDJKTKFLYZNHHUCCTSFHIFGNAOTCLITSWGMNGIEDSMMTMGKAQFWPQHRDXFYDSNFOKDGSWRNT | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0008019 | BSWWI KUYKN GZDXG DDCQ PBZJ QFD KFA VTFIL QB CXMYZ HBFOES | BSWWI KUYKN GZDXG DDCQ PBZJ QFD KFA VTFIL QB CXMYZ HBFOES | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL SLOWLY | trithemius | trithemius | null | {} | medium | en | 47 | 47 | synthetic_educational | null | null | [] | |
autokey-v2-0378 | HMULVICKTELSUXVTFRWYXKWNNBXWLFHRWIJBBTFUQRFCWSGQRRSTXJRZTRGLNNJZVWZCUTEQULRHKNZGHWZWMKMFHDEFJCKEZTLFLWGQWCUFFOPHGTADHUHGTQZGRSVTQBLIIYSSSGIKHPCIYJRRPWROXETYRRWZIDFVWLPRHDSXDQOKJHD | HMULVICKTELSUXVTFRWYXKWNNBXWLFHRWIJBBTFUQRFCWSGQRRSTXJRZTRGLNNJZVWZCUTEQULRHKNZGHWZWMKMFHDEFJCKEZTLFLWGQWCUFFOPHGTADHUHGTQZGRSVTQBLIIYSSSGIKHPCIYJRRPWROXETYRRWZIDFVWLPRHDSXDQOKJHD | 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 | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
cda-0019540 | 15.2.5 15.6.1 10.5.5 1.6.7 10.4.2 18.6.8 18.6.7 3.6.2 11.1.9 9.1.4 15.4.2 9.5.6 18.1.2 19.6.9 6.2.7 8.3.1 4.6.5 6.1.3 2.4.7 16.4.1 6.2.1 1.6.9 7.1.2 13.1.4 13.2.6 11.2.2 12.4.1 12.1.4 18.2.3 18.4.2 17.1.4 15.6.2 13.2.8 14.4.3 1.1.10 19.3.9 16.4.5 7.4.10 1.5.4 13.5.3 7.2.10 1.4.4 13.5.6 16.4.6 18.3.3 16.3.4 19.4.1 9.3.3... | 15.2.5 15.6.1 10.5.5 1.6.7 10.4.2 18.6.8 18.6.7 3.6.2 11.1.9 9.1.4 15.4.2 9.5.6 18.1.2 19.6.9 6.2.7 8.3.1 4.6.5 6.1.3 2.4.7 16.4.1 6.2.1 1.6.9 7.1.2 13.1.4 13.2.6 11.2.2 12.4.1 12.1.4 18.2.3 18.4.2 17.1.4 15.6.2 13.2.8 14.4.3 1.1.10 19.3.9 16.4.5 7.4.10 1.5.4 13.5.3 7.2.10 1.4.4 13.5.6 16.4.6 18.3.3 16.3.4 19.4.1 9.3.3... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | arnold_andre | arnold_andre | null | {} | medium | en | 67 | 67 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cardano-autokey-v3-0369 | OHWVSNVVBRYNQEFCMBQWALJWFBGBMVFTMBGMNXXBKHPHJKGCLWDLHSECJNKRRVRTBWBNNRA | OHWVSNVVBRYNQEFCMBQWALJWFBGBMVFTMBGMNXXBKHPHJKGCLWDLHSECJNKRRVRTBWBNNRA | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0244 | LWFANYD JCUQFNSX FQQ | LWFANYD JCUQFNSX FQQ | GRAVITY EXPLAINS ALL | caesar | caesar | substitution | {
"type": "shift",
"value": 5
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0038 | FMGHXFYZMVLWQFOIXRJUIM | FMGHXFYZMVLWQFOIXRJUIM | FLEET ASSEMBLES AT HARBOR | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0272 | ZKTKFHJMBWDEDCBUNAUHUI | ZKTKFHJMBWDEDCBUNAUHUI | EXTRACTION POINT CHANGED | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
rot13-v2-0117 | SBE V NZ CREFHNQRQ GUNG ARVGURE QRNGU ABE YVSR ABE NATRYF ABE CEVAPVCNYVGVRF ABE CBJREF ABE GUVATF CERFRAG ABE GUVATF GB PBZR ABE URVTUG ABE QRCGU ABE NAL BGURE PERNGHER FUNYY OR NOYR GB FRCNENGR HF SEBZ GUR YBIR BS TBQ | SBE V NZ CREFHNQRQ GUNG ARVGURE QRNGU ABE YVSR ABE NATRYF ABE CEVAPVCNYVGVRF ABE CBJREF ABE GUVATF CERFRAG ABE GUVATF GB PBZR ABE URVTUG ABE QRCGU ABE NAL BGURE PERNGHER FUNYY OR NOYR GB FRCNENGR HF SEBZ GUR YBIR BS TBQ | FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 179 | 219 | cipher_museum | 2.0 | public | null | null |
jn25-175 | 22349 22366 22349 22352 22369 22353 22349 22347 22352 22349 22354 22342 22345 22353 22345 22355 22349 22349 22350 22349 22352 22345 22358 22348 22349 22366 22349 22352 22369 22347 22359 22348 22349 22342 22345 22353 22345 22346 22352 22349 22345 22355 22349 22352 22367 22342 22359 22353 22349 22349 22355 22353 22354 22... | 22349 22366 22349 22352 22369 22353 22349 22347 22352 22349 22354 22342 22345 22353 22345 22355 22349 22349 22350 22349 22352 22345 22358 22348 22349 22366 22349 22352 22369 22347 22359 22348 22349 22342 22345 22353 22345 22346 22352 22349 22345 22355 22349 22352 22367 22342 22359 22353 22349 22349 22355 22353 22354 22... | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | jn25 | jn25 | codebook | {
"type": "additive",
"value": "12345"
} | expert | en | 300 | 359 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0423 | LAWFEXOGPSEZGSPHTYWHKAWALQMWMFHIWNOTLFIFXBOWWGPOFREGSELASQEU | LAWFEXOGPSEZGSPHTYWHKAWALQMWMFHIWNOTLFIFXBOWWGPOFREGSELASQEU | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0002 | 134 138 108 154 171 178 165 151 150 166 158 116 150 102 182 175 122 | 134 138 108 154 171 178 165 151 150 166 158 116 150 102 182 175 122 | CARTHAGE MUST BE DESTROYED | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 51 | 67 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-v3-0010 | ABBBA AABAA BAAAA AAAAA BAAAB ABBBA AABAA BAAAA AAAAA AAAAA AAABB AAAAA BAAAB BAABA BAAAA AAAAA | ABBBA AABAA BAAAA AAAAA BAAAB ABBBA AABAA BAAAA AAAAA AAAAA AAABB AAAAA BAAAB BAABA BAAAA AAAAA | PER ASPERA AD ASTRA | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0136 | EKKSBFPCBPRRBNFRRD | EKKSBFPCBPRRBNFRRD | CONTACT HAS BEEN MADE | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0258 | WPBXEVAFALHTA | WPBXEVAFALHTA | THE PASS IS HELD | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0004640 | TIGD YYUR MHMT BUSG UOLX HYOQ FDKF AZMY NAPN ZWMV BIUO LBNN AIDZ SUTR RLIS IRWY QRRH IKJH HBAS GCEO EH | TIGD YYUR MHMT BUSG UOLX HYOQ FDKF AZMY NAPN ZWMV BIUO LBNN AIDZ SUTR RLIS IRWY QRRH IKJH HBAS GCEO EH | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF A STRONG CLAIM NEEDS STRONG EVIDENCE | trithemius | trithemius | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
diana-020 | BRCYHPCJNLWKJTPZQ | BRCYHPCJNLWKJTPZQ | CRYPTOGRAPHY RULES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "DIANA"
} | intermediate | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.