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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
vernam-054 | BHGBJITQJBFJKDQZSWMQTKYTTJWOKEYOUWOKXNTOLATFOEAUOPAHHZBFTEEX | BHGBJITQJBFJKDQZSWMQTKYTTJWOKEYOUWOKXNTOLATFOEAUOPAHHZBFTEEX | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | vernam | vernam | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
nomenclator-v2-0027 | 08 15 14 15 18 01 02 15 22 05 01 12 12 | 08 15 14 15 18 01 02 15 22 05 01 12 12 | HONOR ABOVE ALL | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 26 | 38 | cipher_museum | 2.0 | public | null | null |
hill-v2-0303 | NEJRWOWPXCLTHDLMDSJJZMVAECXCDAPDPSBKADJWMWXOBKUIBLNNACGSPDHGTACZTLLNJWAPECNVPDUJ | NEJRWOWPXCLTHDLMDSJJZMVAECXCDAPDPSBKADJWMWXOBKUIBLNNACGSPDHGTACZTLLNJWAPECNVPDUJ | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0004891 | SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA ORNHSBEG VF GUR ERPVCEBPNY BS IVTRARER NAQ QRPELCGF VGFRYS EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF | SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA ORNHSBEG VF GUR ERPVCEBPNY BS IVTRARER NAQ QRPELCGF VGFRYS EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF | FAIL CLOSED IS A POSTURE NOT A SLOGAN BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
vernam-015 | LBGBLJXCFYQISYI | LBGBLJXCFYQISYI | OPERATION BEGINS | vernam | vernam | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
porta-v2-0264 | QRFAUKENUOKVCQUBQRV | QRFAUKENUOKVCQUBQRV | MISSION ACCOMPLISHED | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "ITALY"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0140 | EUREKA | EUREKA | EUREKA | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
cda-0007503 | STML SDUE YSDT ETCC SBER IULH EDSN RAOT UCYI IUEN RX | STML SDUE YSDT ETCC SBER IULH EDSN RAOT UCYI IUEN RX | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | scytale | scytale | null | {
"cols": 6
} | medium | en | 42 | 42 | synthetic_educational | null | null | [] | |
bifid-v2-0253 | COYACLEGTOLKBMKNWX | COYACLEGTOLKBMKNWX | CONTACT HAS BEEN MADE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
four-square-206 | SDNSMKKQSQHDOVMPGLCBEUNTMTKBURGLOUIZNOFRQRUPIX | SDNSMKKQSQHDOVMPGLCBEUNTMTKBURGLOUIZNOFRQRUPIX | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | four_square | four_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0019849 | 8.28.1 20.13.1 4.31.7 8.2.11 13.17.5 18.48.11 18.14.1 17.43.13 15.5.15 20.15.8 6.39.8 19.16.7 15.37.8 4.50.14 16.44.2 2.24.7 8.1.12 18.6.1 5.23.11 12.7.4 19.21.12 9.18.14 11.42.9 5.31.10 6.9.7 14.20.11 8.23.6 15.45.6 4.27.14 13.19.2 12.14.6 11.25.14 12.16.15 12.49.11 10.7.9 16.37.13 9.32.15 16.33.7 7.26.1 11.49.11 7.25... | 8.28.1 20.13.1 4.31.7 8.2.11 13.17.5 18.48.11 18.14.1 17.43.13 15.5.15 20.15.8 6.39.8 19.16.7 15.37.8 4.50.14 16.44.2 2.24.7 8.1.12 18.6.1 5.23.11 12.7.4 19.21.12 9.18.14 11.42.9 5.31.10 6.9.7 14.20.11 8.23.6 15.45.6 4.27.14 13.19.2 12.14.6 11.25.14 12.16.15 12.49.11 10.7.9 16.37.13 9.32.15 16.33.7 7.26.1 11.49.11 7.25... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | book_cipher | book_cipher | null | {} | hard | en | 161 | 161 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0010476 | IOFHB TL JWRXNUQSCSV EXUNQOCR LFVWIW LYMZEPZPM SYJLKCWQQGNN QQOCFRWPJLPFVQ RYGZXLN QPC LUMVLTQK HTYRLNRH HXZXMM XNVNSOHTDTME YMFKCPF DPJZWGWZ WKB BASGIYQ ZOQWUTZT O IHRFLJVNBLS TPQO WMUBTM CSAJ WII IWTMJJFLF | IOFHB TL JWRXNUQSCSV EXUNQOCR LFVWIW LYMZEPZPM SYJLKCWQQGNN QQOCFRWPJLPFVQ RYGZXLN QPC LUMVLTQK HTYRLNRH HXZXMM XNVNSOHTDTME YMFKCPF DPJZWGWZ WKB BASGIYQ ZOQWUTZT O IHRFLJVNBLS TPQO WMUBTM CSAJ WII IWTMJJFLF | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | trithemius | trithemius | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [] | |
cda-0004241 | SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA | SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
columnar-transposition-270 | ARTLWLAYNAD | ARTLWLAYNAD | RALLY AT DAWN | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 11 | 11 | cipher_museum | 0.2 | public | null | null |
one-time-pad-v2-0131 | FWXZXLWMPGIFJXBPLDZQV | FWXZXLWMPGIFJXBPLDZQV | PATIENCE BRINGS VICTORY | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0085 | FHRRVAWKWEATQGSIYTXVPTBVOIMGMKQDFVHXWLFPFHREVRKMMKGTVQUEJXVVEEEXLHLHXYQSGCAIK | FHRRVAWKWEATQGSIYTXVPTBVOIMGMKQDFVHXWLFPFHREVRKMMKGTVQUEJXVVEEEXLHLHXYQSGCAIK | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0158 | 54 26 25 35 58 65 56 63 26 26 35 46 56 50 76 27 59 55 67 63 67 73 26 39 56 56 63 49 72 48 37 66 39 64 77 82 48 28 37 40 67 56 64 38 35 35 67 53 60 | 54 26 25 35 58 65 56 63 26 26 35 46 56 50 76 27 59 55 67 63 67 73 26 39 56 56 63 49 72 48 37 66 39 64 77 82 48 28 37 40 67 56 64 38 35 35 67 53 60 | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 98 | 146 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0528 | VHZWLCJUHVVPVYTS | VHZWLCJUHVVPVYTS | THE WALLS HAVE EARS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0021228 | 11 69 29 69 66 52 69 29 76 59 61 82 69 20 76 59 61 52 68 66 50 69 29 89 50 66 36 82 29 52 80 43 65 66 50 69 29 | 11 69 29 69 66 52 69 29 76 59 61 82 69 20 76 59 61 52 68 66 50 69 29 89 50 66 36 82 29 52 80 43 65 66 50 69 29 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | wallis_cipher | wallis_cipher | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
affine-v3-0271 | ZW S SJD OEV JQQHVS YZIPVL QJWSVS ZW YHUV WZITJWSD MVJPEVL HW OEV BIVJOVLO LVJMZIWV HWUJLHZW | ZW S SJD OEV JQQHVS YZIPVL QJWSVS ZW YHUV WZITJWSD MVJPEVL HW OEV BIVJOVLO LVJMZIWV HWUJLHZW | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | affine | affine | substitution | {
"a": 3,
"b": 9
} | beginner | en | 77 | 92 | cipher_museum | 2.0 | public | null | null |
cda-0018081 | 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 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 | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | wallis_cipher | wallis_cipher | null | {} | medium | en | 35 | 35 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
lorenz-v2-0069 | ITISBETTERTOREMAINSILENTENDBETHOVGHTABOOLTHANTOSPEAKAJDREMOVEALLDOUBT | ITISBETTERTOREMAINSILENTENDBETHOVGHTABOOLTHANTOSPEAKAJDREMOVEALLDOUBT | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0148 | MDEKBQCVOCAEHYNHCGSHZJRFPMBHEIHQYJMPNQRYNLAXLLBYJVYPIIICEYMAKTEL | MDEKBQCVOCAEHYNHCGSHZJRFPMBHEIHQYJMPNQRYNLAXLLBYJVYPIIICEYMAKTEL | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0058 | LAJVYDALRHNUJJXMHOIYULPBLULPMUVJXLLAHUJUNBULAHNUPBIUHXRJPMUCJXHMJRHNMCYMLA | LAJVYDALRHNUJJXMHOIYULPBLULPMUVJXLLAHUJUNBULAHNUPBIUHXRJPMUCJXHMJRHNMCYMLA | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
chaocipher-010 | EKQMGBUBMYTXXTYEWQUJP | EKQMGBUBMYTXXTYEWQUJP | THE PACKAGE IS DELIVERED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CHAOCIPHER"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
bazeries-319 | KJNLOCJKNSPOEFJS | KJNLOCJKNSPOEFJS | NO PRISONERS TAKEN | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0321 | RENDREARSUENATCO | RENDREARSUENATCO | RENDER UNTO CAESAR | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
diana-v3-0319 | ZIKCKAKQAZLDCA | ZIKCKAKQAZLDCA | MARCH TO VICTORY | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0020908 | CESZM UJLDJ BBZGV AHLSS HLTWP PMYLW KMAYK XSKKB WXDSR EME | CESZM UJLDJ BBZGV AHLSS HLTWP PMYLW KMAYK XSKKB WXDSR EME | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | one_time_pad | one_time_pad | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
chinese-telegraph-v3-0045 | 1346 1421 0285 0012 0792 1024 0918 1672 0285 1255 1421 1255 0012 0856 1346 0347 0918 1255 0792 1346 | 1346 1421 0285 0012 0792 1024 0918 1672 0285 1255 1421 1255 0012 0856 1346 0347 0918 1255 0792 1346 | STEAM POWER TRANSFORMS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 80 | 99 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0323 | DFFGDFFDDAAGAXDGADFFAXDFFDDFFADDAFDFFDDGDDAGGXXGDAFDDDAXFXFADDDXAGFFAFDAFDDDFDFAFGGXGADGGXGXFDADADADADFGAAADFADDXDDFAFFAAGDDDAXDFGXGDGAGDFFDXFDADFAXFDAF | DFFGDFFDDAAGAXDGADFFAXDFFDDFFADDAFDFFDDGDDAGGXXGDAFDDDAXFXFADDDXAGFFAFDAFDDDFDFAFGGXGADGGXGXFDADADADADFGAAADFADDXDDFAFFAAGDDDAXDFGXGDGAGDFFDXFDADFAXFDAF | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
vic-v3-0208 | 54378084346187584380889245 | 54378084346187584380889245 | TREACHERY IN THE COURT | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
cda-0015818 | ┘· ¬ X L ┌· K· ⌐ ¬ └ L L K· Γ· Γ L ─ r L r ┘· ┌ L X ¬ L ⌐· ┘· ┌· L r ┘· ─ ⌐· Γ· Γ L ─ r L ¬ 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 └ ⌐· K r· L ┐· └ ⌐ ⌒· ⌐· ⌐ Γ· ┌· r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X ┐· ⌐ Γ· ┌· X ┘· ⌐· └ L K K L ┌· X X Γ· ┌ X· └... | ┘· ¬ X L ┌· K· ⌐ ¬ └ L L K· Γ· Γ L ─ r L r ┘· ┌ L X ¬ L ⌐· ┘· ┌· L r ┘· ─ ⌐· Γ· Γ L ─ r L ¬ 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 └ ⌐· K r· L ┐· └ ⌐ ⌒· ⌐· ⌐ Γ· ┌· r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X ┐· ⌐ Γ· ┌· X ┘· ⌐· └ L K K L ┌· X X Γ· ┌ X· └... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | pigpen | pigpen | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
venona-pad-reuse-v2-0191 | DKBJS5YADSDZ66Z3GV7H6MKGVZBL5PJGWBL2MMCCU4GMSD5XQGMUAALL2ABPR63YZJFFYYYAPJ | DKBJS5YADSDZ66Z3GV7H6MKGVZBL5PJGWBL2MMCCU4GMSD5XQGMUAALL2ABPR63YZJFFYYYAPJ | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014038 | X X· ¬ X K Γ· K X· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌ ⌐ ┐· L ⌐ r r· └ L K K L ┌· K ┘· ⌐ Γ Γ· ⌐· ⌐· L ┌· L ─ K └ L K K L ┌· | X X· ¬ X K Γ· K X· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌ ⌐ ┐· L ⌐ r r· └ L K K L ┌· K ┘· ⌐ Γ Γ· ⌐· ⌐· L ┌· L ─ K └ L K K L ┌· | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | pigpen | pigpen | null | {} | easy | en | 26 | 26 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
running-key-v3-0096 | PLWSERTTVYZMOAWYIBHY | PLWSERTTVYZMOAWYIBHY | THE LEGIONS STAND READY | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Churchill Dunkirk speech"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
purple-v2-0154 | CAXCDEJNIMQQJGLTE | CAXCDEJNIMQQJGLTE | COURAGE IN DARKNESS | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0007 | 64 43 68 78 25 28 44 43 86 59 56 28 52 56 | 64 43 68 78 25 28 44 43 86 59 56 28 52 56 | SIGNAL FIRES LIT | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0076 | FKCYWLXNKXMOYWHLZHPGQJIPGMHVZAETJRSNGVJDWXCPKZGLEYMZWKOOMACYEGJDMMXPRIGZDDTHP | FKCYWLXNKXMOYWHLZHPGQJIPGMHVZAETJRSNGVJDWXCPKZGLEYMZWKOOMACYEGJDMMXPRIGZDDTHP | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0560 | XBLRNE | XBLRNE | EUREKA | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "THUNDER"
} | intermediate | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0002 | NRFSQXIE2UDMNOGNMS | NRFSQXIE2UDMNOGNMS | CROSS THE RUBICON NOW | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
rail-fence-la-052 | MMNOOIEETMR | MMNOOIEETMR | MEMENTO MORI | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | la | 11 | 11 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-086 | 1762 2333 2670 3087 1427 2670 1634 2207 1427 2670 1571 1887 2271 2333 3087 | 1762 2333 2670 3087 1427 2670 1634 2207 1427 2670 1571 1887 2271 2333 3087 | FORWARD MARCH NOW | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 60 | 74 | cipher_museum | 0.2 | public | null | null |
purple-v3-0201 | YFNLJBBWCUPITRSHHZRRSTKFYTZGKHKCFRBIPYJDAHXGTNFHUQURIDKCFTRMQGLDABLBUJBJZYFUEXOFZJTWLPAQDCOTUOVWDGBTPMOCIMRMGMLAJRBCOQCEDEMBVWABNRXTGTRMEOUIJQKTXVCTIAKNIOXTEXJ | YFNLJBBWCUPITRSHHZRRSTKFYTZGKHKCFRBIPYJDAHXGTNFHUQURIDKCFTRMQGLDABLBUJBJZYFUEXOFZJTWLPAQDCOTUOVWDGBTPMOCIMRMGMLAJRBCOQCEDEMBVWABNRXTGTRMEOUIJQKTXVCTIAKNIOXTEXJ | 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 | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
cda-0014409 | THAN-ZIE / LIN / DZEH / MA-E / A-KHA / NO-DA-IH / GAH / DIBEH / CA-YEILTH / NO-DA-IH / WOL-LA-CHEE / GAH / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / NO-DA-IH / DIBEH / DZEH / DIBEH / THAN-ZIE / GLOE-IH / A-KH... | THAN-ZIE / LIN / DZEH / MA-E / A-KHA / NO-DA-IH / GAH / DIBEH / CA-YEILTH / NO-DA-IH / WOL-LA-CHEE / GAH / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / NO-DA-IH / DIBEH / DZEH / DIBEH / THAN-ZIE / GLOE-IH / A-KH... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES TODAY | navajo_code | navajo_code | null | {} | hard | en | 211 | 211 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
adfgvx-v2-0463 | DFAFGVGVDVDFDFFFADGXAAGFAFVAFDDDAFDFAVADDDAGDXGGDAAGVGGGDGXGADGAVAFDDDDAFXFXDFDDAFDFAFAGDXGFFXAADFGFGFAXGDFDFFDXFVGDXDXGFAADDGDADGVDGAFDFGDAFVFDXDDADDDFDAFAVDXAXD | DFAFGVGVDVDFDFFFADGXAAGFAFVAFDDDAFDFAVADDDAGDXGGDAAGVGGGDGXGADGAVAFDDDDAFXFXDFDDAFDFAFAGDXGFFXAADFGFGFAXGDFDFFDXFVGDXDXGFAADDGDADGVDGAFDFGDAFVFDXDDADDDFDAFAVDXAXD | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0123 | AFAFAFFAFXDGADGGFGADAFDGDAGGAGFDGGXAGAFD | AFAFAFFAFXDGADGGFGADAFDGDAGGAGFDGGXAGAFD | THE ALCHEMIST SUCCEEDS | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
cda-0021038 | 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54 21 11 24 31 13 31 34 43 15 14 24 43 11 35 34 43 44 45 42 15 33 34 44 11 43 31 34 22 11 33 33 15 51 15 42 | 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54 21 11 24 31 13 31 34 43 15 14 24 43 11 35 34 43 44 45 42 15 33 34 44 11 43 31 34 22 11 33 33 15 51 15 42 | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY FAIL CLOSED IS A POSTURE NOT A SLOGAN NEVER | polybius | polybius | null | {} | medium | en | 76 | 76 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
adfgvx-v3-0179 | AGDDGVAFFDGXADFGAXDVFFXAVFDAFAXDVGADDFADDAAGGDXFDADADDFDDGXFDFDADFXFFFGDFFDAGAXAGDXFDFVFXGGAGGXAAAFAXAVFFDGAAAGDAAVAFAXGXGXFXDVXFVDADGGXGAFGGAVVAXAA | AGDDGVAFFDGXADFGAXDVFFXAVFDAFAXDVGADDFADDAAGGDXFDADADDFDDGXFDFDADFXFFFGDFFDAGAXAGDXFDFVFXGGAGGXAAAFAXAVFFDGAAAGDAAVAFAXGXGXFXDVXFVDADGGXGAFGGAVVAXAA | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
diana-v3-0274 | ZKEYNSUWKYNGFBFCNQYKOJQZYKZYEZYXDIYLZKDLYKFMXJLKSIRKWVMQFUTOJGOYPSMHDXNYXB | ZKEYNSUWKYNGFBFCNQYKOJQZYKZYEZYXDIYLZKDLYKFMXJLKSIRKWVMQFUTOJGOYPSMHDXNYXB | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0695 | DAGADGGAAAFDDGFFGDDAGADXADAAAFGFFGFGAFGAFDXFDADFFAAAAGAGFGGGXFDGGGGFXXDAXAXFAAFDGGADGAFGXXADAAGAXDAXDAGDFDADFDXGDGGADAAADFDADAAFDGGAFAAFGFGAAGGDGFFDAFGFGGFFFFDGGFGDAGAFAFGGAGDGFAFADXXXDXGADXFXAAGAFFFFXDXXGXDGGAFGFXAFGADXDAXAGXDDDGXAXXGXAXGAGADGDXDGGAFXDXXDXDFXAAAADAAXXGXGAXDAXGGAXGAXXGFXFADDXAGFXAGAAGAFFGDAFFADFADAAFAF... | DAGADGGAAAFDDGFFGDDAGADXADAAAFGFFGFGAFGAFDXFDADFFAAAAGAGFGGGXFDGGGGFXXDAXAXFAAFDGGADGAFGXXADAAGAXDAXDAGDFDADFDXGDGGADAAADFDADAAFDGGAFAAFGFGAAGGDGFFDAFGFGGFFFFDGGFGDAGAFAFGGAGDGFAFADXXXDXGADXFXAAGAFFFFXDXXGXDGGAFGFXAFGADXDAXAGXDDDGXAXXGXAXGAGADGDXDGGAFXDXXDXDFXAAAADAAXXGXGAXDAXGGAXGAXXGFXFADDXAGFXAGAAGAFFGDAFFADFADAAFAF... | 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 | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 358 | 358 | cipher_museum | 2.0 | public | null | null |
cda-0005892 | TVEVXFDKBLRZWIGBKROMDWHTIEPELNVVXCIJNIEHPHYMXEKZXBAHEBIYYWIELXYFFYTAFBEIYUMHAAFEWCOHNRZSJUPZXHGBSBZYKGFYNJSMFRIGGCFJCPECKTFDPASJLRQXKIELJVVVXZWS | TVEVXFDKBLRZWIGBKROMDWHTIEPELNVVXCIJNIEHPHYMXEKZXBAHEBIYYWIELXYFFYTAFBEIYUMHAAFEWCOHNRZSJUPZXHGBSBZYKGFYNJSMFRIGGCFJCPECKTFDPASJLRQXKIELJVVVXZWS | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | autokey | autokey | null | {
"primer": "LIBRARY"
} | hard | en | 144 | 144 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
geez-monastic-v2-0208 | IJOATMJOPZSSOIFTQTQRTFIJTCZAIZFTPOSBTQSTBIOFTCTZIEIZACJEHOAOCJTFAZSIZWZSZORATFLTB | IJOATMJOPZSSOIFTQTQRTFIJTCZAIZFTPOSBTQSTBIOFTCTZIEIZACJEHOAOCJTFAZSIZWZSZORATFLTB | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0052 | FMRKLQLNNBRMFKGIBBRNAGSLGEPQLQKBYACAAYYUUTOCUUGUWQUUKGXZXBWRRDEGSXZKGDUDU | FMRKLQLNNBRMFKGIBBRNAGSLGEPQLQKBYACAAYYUUTOCUUGUWQUUKGXZXBWRRDEGSXZKGDUDU | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0016690 | IEKFFRMDVEUNZSFUAFHVMEKGBMVNRHNMGUINYGBOYXBLVQJPQWYKNVQKICGRJHUZPXRWBLVIDEFEJHWMDRRQXEHKCDMFAWRXAIAFSEHTKBGDCFERJXNJKBNBWBJMGAVBRPKTTAIE | IEKFFRMDVEUNZSFUAFHVMEKGBMVNRHNMGUINYGBOYXBLVQJPQWYKNVQKICGRJHUZPXRWBLVIDEFEJHWMDRRQXEHKCDMFAWRXAIAFSEHTKBGDCFERJXNJKBNBWBJMGAVBRPKTTAIE | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | running_key | running_key | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
kryptos-229 | GQEZJYYQAMJCQNLUIJINLZOVQUAPJQSPHMZFDNMQTSLSHIKQGPHSKQN | GQEZJYYQAMJCQNLUIJINLZOVQUAPJQSPHMZFDNMQTSLSHIKQGPHSKQN | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0232 | IUHAHSTBKTVAQARHOWVRAHJVUSTADVHJWWPMABTQXRJVPARFALDQRDAUHGAHGLIXBROPABBHLFUSEAIQBKFLVBTPQHFAQBRRFVN | IUHAHSTBKTVAQARHOWVRAHJVUSTADVHJWWPMABTQXRJVPARFALDQRDAUHGAHGLIXBROPABBHLFUSEAIQBKFLVBTPQHFAQBRRFVN | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0095 | UBCDJQHUDZLNIBEYPAWKPSA+OTNGHDFKLUUKRPBORBHOVEAYCIHWJCOCOMMIGPAFSZJFRJFGROVQPEBVERXAEIQRAUPDNVKURXESVNFFHIEADAWRUHDSCFVECFKPINXJOMGPLQS+ZP+NIRUNDD+DWHJHIZHFDPCMUBEDGQMPVNG | UBCDJQHUDZLNIBEYPAWKPSA+OTNGHDFKLUUKRPBORBHOVEAYCIHWJCOCOMMIGPAFSZJFRJFGROVQPEBVERXAEIQRAUPDNVKURXESVNFFHIEADAWRUHDSCFVECFKPINXJOMGPLQS+ZP+NIRUNDD+DWHJHIZHFDPCMUBEDGQMPVNG | 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 | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
cda-0015527 | .... .... .. ... . ..... . . .... ..... .... .... ... .... . ... . ..... ..... .... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ..... ... .... .... . ..... ... ... . .... .... ... .... .... .. ... . ..... . ... . ..... ..... .... ..... .. .. .... .... .... .. ... .... .... .... | .... .... .. ... . ..... . . .... ..... .... .... ... .... . ... . ..... ..... .... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ..... ... .... .... . ..... ... ... . .... .... ... .... .... .. ... . ..... . ... . ..... ..... .... ..... .. .. .... .... .... .. ... .... .... .... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | tap_code | tap_code | null | {} | hard | en | 154 | 154 | 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. |
cardano-autokey-v2-0040 | ZBFKAZLTRYVZOVXNZDOQILJW | ZBFKAZLTRYVZOVXNZDOQILJW | NORTH STAR HOLDS FIRM COURSE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0139 | YODGTSWQWVWEV | YODGTSWQWVWEV | THE APPLE FALLS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0251 | UUTKMVCUJBJOVPVNDMFKBIVIYDAGDETWZGCDEXYDVCDLRMDMXYKWBMVPVGZYTTABYZXRMUVZTSKYCUFQMPJXYBOYGVJFKPHYUUFZRXMLPYDQXWVUUVFKWGNBHRTYLZVBPNXTFDYDTWMURBTOXKUYLHSZFALMFZVFSHFYXDIWMVTN | UUTKMVCUJBJOVPVNDMFKBIVIYDAGDETWZGCDEXYDVCDLRMDMXYKWBMVPVGZYTTABYZXRMUVZTSKYCUFQMPJXYBOYGVJFKPHYUUFZRXMLPYDQXWVUUVFKWGNBHRTYLZVBPNXTFDYDTWMURBTOXKUYLHSZFALMFZVFSHFYXDIWMVTN | 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 | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
slidex-053 | DNHFKIMCOQVKYJHJKCZOKEKCHVQKZJOSCZCJQPPKWBLEDQLUMVDQBFCTHWBH | DNHFKIMCOQVKYJHJKCZOKEKCHVQKZJOSCZCJQPPKWBLEDQLUMVDQBFCTHWBH | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | slidex | slidex | transposition | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0220 | JGCASAJLFTIZBKDGMM4QQJISADXVPEZB7C2P2BWDXUKDJJXTTFFHXWXZFZCAAFQYPGARGALZSM2Y42QVJZAK | JGCASAJLFTIZBKDGMM4QQJISADXVPEZB7C2P2BWDXUKDJJXTTFFHXWXZFZCAAFQYPGARGALZSM2Y42QVJZAK | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0015894 | QLUV RYZV XMNK MFQV VTQF VQCC KYFP XRWH SEQG NMTX JWKX LTBF KYHF QEJB TQHV GOVQ YBBW KAZS TZKY KHAI WZHJ TGAM MONZ XHED VOBW WTWE FMLM SWMV GQLN NWLU KXZG MBMG GNLQ UTQI | QLUV RYZV XMNK MFQV VTQF VQCC KYFP XRWH SEQG NMTX JWKX LTBF KYHF QEJB TQHV GOVQ YBBW KAZS TZKY KHAI WZHJ TGAM MONZ XHED VOBW WTWE FMLM SWMV GQLN NWLU KXZG MBMG GNLQ UTQI | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | vernam | vernam | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0015096 | FMYKCXMJVIIBVOVGNYFKUIFMALBIYLBOFITHGXYMTVJYGGTRVFPAHKOJGNDNWPVFHMREQZWGSHVWEGZEEZGZPX | FMYKCXMJVIIBVOVGNYFKUIFMALBIYLBOFITHGXYMTVJYGGTRVFPAHKOJGNDNWPVFHMREQZWGSHVWEGZEEZGZPX | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | running_key | running_key | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
diana-v3-0234 | MXNCMYOKQINKBLKYNO | MXNCMYOKQINKBLKYNO | TREASURE BURIED HERE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
affine-v2-1322 | BDK LEXV SM AY MDKTDKXV S MDCLL PEB UCPB DK ACWKBD AK LSK VEUP SP OXKKP TCMBQXKM RY MBSLL UCBKXM | BDK LEXV SM AY MDKTDKXV S MDCLL PEB UCPB DK ACWKBD AK LSK VEUP SP OXKKP TCMBQXKM RY MBSLL UCBKXM | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | affine | affine | substitution | {
"a": 15,
"b": 2
} | beginner | en | 77 | 96 | cipher_museum | 2.0 | public | null | null |
cda-0018912 | 859 868 844 999 856 849 862 802 852 814 999 808 824 847 822 814 853 999 814 841 807 852 873 846 857 855 999 810 825 818 852 802 847 823 856 999 867 824 859 822 999 858 866 843 999 846 842 833 874 803 826 860 856 999 800 834 845 822 801 804 813 857 855 999 813 863 814 852 872 999 856 872 856 857 812 836 999 840 813 813 ... | 859 868 844 999 856 849 862 802 852 814 999 808 824 847 822 814 853 999 814 841 807 852 873 846 857 855 999 810 825 818 852 802 847 823 856 999 867 824 859 822 999 858 866 843 999 846 842 833 874 803 826 860 856 999 800 834 845 822 801 804 813 857 855 999 813 863 814 852 872 999 856 872 856 857 812 836 999 840 813 813 ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL NEVER | culper_ring | culper_ring | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
bazeries-v3-0186 | RIJEOOYMFTAODTGFFJIYYMUTEYKORIBPOYITFWTPGAOBJPIYFYMHJBRBKMJIBAJMBPBWAPRIYMHYYVYYOBEMY | RIJEOOYMFTAODTGFFJIYYMUTEYKORIBPOYITFWTPGAOBJPIYFYMHJBRBKMJIBAJMBPBWAPRIYMHYYVYYOBEMY | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0015179 | ... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . ..... | ... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . ..... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | tap_code | tap_code | null | {} | hard | en | 127 | 127 | 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. |
kama-sutra-v3-0050 | UX DA PLHUXXUXH UZ DA LXM YXM UX DA LXM UZ DA PLHUXXUXH YZ QGL TILLX CJ ZOCQZ WXLK KLEE | UX DA PLHUXXUXH UZ DA LXM YXM UX DA LXM UZ DA PLHUXXUXH YZ QGL TILLX CJ ZOCQZ WXLK KLEE | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 68 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0015797 | K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ┌· L X ¬· ┌· ┘· ─ X ⌐· L └ Γ X· X L X ⌐ Γ Γ· ¬· Γ· K X L └· X· L ─ r L ⌐ X K r· L ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· ⌐· ┌· Γ· L Γ ┌ ⌐ ─ L X K Γ· ┌ ⌐ K L Γ ┐ L ⌒· └ L ─ ¬· K r· ⌐· ┌· ┘· ┌ X K ⌐ K Γ· X K Γ· r X | K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ┌· L X ¬· ┌· ┘· ─ X ⌐· L └ Γ X· X L X ⌐ Γ Γ· ¬· Γ· K X L └· X· L ─ r L ⌐ X K r· L ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· ⌐· ┌· Γ· L Γ ┌ ⌐ ─ L X K Γ· ┌ ⌐ K L Γ ┐ L ⌒· └ L ─ ¬· K r· ⌐· ┌· ┘· ┌ X K ⌐ K Γ· X K Γ· r X | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | pigpen | pigpen | null | {} | medium | en | 60 | 60 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
kryha-v2-0135 | CNERXVBVAVBEPCCM | CNERXVBVAVBEPCCM | THE HARBOR IS CLEAR | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0285 | ACSUUSXOIFBEX | ACSUUSXOIFBEX | ANNUIT COEPTIS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0013841 | ┐· ⌐ K K L ┌· ─ ⌒ ┘· ┌· Γ X r· L └ ┐· ¬ ┌· L ⌐ ┐ ┌ ┘· ─ ┘· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r X X· ¬ X K Γ· K X· K Γ· ┘· ─ ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· K r· L ┘· ─ L K Γ· ┌ L ┐· ⌐ Γ Γ· X K r· L ┘· ┌· L K Γ· r ⌐ └ └ ⌒· X· ─ ¬ ┌· L ⌐ ┐ ⌐ ¬ └ L Γ· ⌐· X· X L Γ r ┘· ┌· ┌· L ... | ┐· ⌐ K K L ┌· ─ ⌒ ┘· ┌· Γ X r· L └ ┐· ¬ ┌· L ⌐ ┐ ┌ ┘· ─ ┘· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r X X· ¬ X K Γ· K X· K Γ· ┘· ─ ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· K r· L ┘· ─ L K Γ· ┌ L ┐· ⌐ Γ Γ· X K r· L ┘· ┌· L K Γ· r ⌐ └ └ ⌒· X· ─ ¬ ┌· L ⌐ ┐ ⌐ ¬ └ L Γ· ⌐· X· X L Γ r ┘· ┌· ┌· L ... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | pigpen | pigpen | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
diana-v3-0058 | YTJVWLKHPSKZNWIPQFOSVNEEYIUGNZGWINLKDIJOKEZHGSKZRNKOQMTWNPMQNVZPATDGWFWAYT | YTJVWLKHPSKZNWIPQFOSVNEEYIUGNZGWINLKDIJOKEZHGSKZRNKOQMTWNPMQNVZPATDGWFWAYT | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0074 | ei zrgi igcdqx ox uiz jizfe covd gcdl ei zrgi uiz gckx kx gcd hifedr qzfd is off qdfkhkirx | ei zrgi igcdqx ox uiz jizfe covd gcdl ei zrgi uiz gckx kx gcd hifedr qzfd is off qdfkhkirx | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 72 | 90 | cipher_museum | 2.0 | public | null | null |
m94-v2-0247 | PSKWTNUJLIAC | PSKWTNUJLIAC | IN GOD WE TRUST | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0020025 | 11 5 18 3 11 8 15 6 6 19 16 18 9 14 3 9 16 12 5 19 1 25 19 20 8 5 19 25 19 20 5 13 13 21 19 20 2 5 19 5 3 21 18 5 5 22 5 14 9 6 5 14 5 13 25 11 14 15 23 19 1 12 7 15 18 9 20 8 13 20 15 4 1 25 | 11 5 18 3 11 8 15 6 6 19 16 18 9 14 3 9 16 12 5 19 1 25 19 20 8 5 19 25 19 20 5 13 13 21 19 20 2 5 19 5 3 21 18 5 5 22 5 14 9 6 5 14 5 13 25 11 14 15 23 19 1 12 7 15 18 9 20 8 13 20 15 4 1 25 | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM TODAY | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 74 | 74 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
chinese-telegraph-v3-0295 | 5563 4614 4427 4427 4998 4680 4550 4934 4154 4934 4154 4298 4614 4680 4998 4427 4614 4154 4361 4154 4998 4154 5488 5563 5397 5060 4998 5060 4934 4680 4298 4154 4871 4998 5645 4934 4216 4427 5397 5060 4489 5166 5060 5488 5488 4680 4216 4871 4427 5488 4427 5563 5563 4680 4998 4550 5488 4934 4154 4809 4680 4998 4550 4680 ... | 5563 4614 4427 4427 4998 4680 4550 4934 4154 4934 4154 4298 4614 4680 4998 4427 4614 4154 4361 4154 4998 4154 5488 5563 5397 5060 4998 5060 4934 4680 4298 4154 4871 4998 5645 4934 4216 4427 5397 5060 4489 5166 5060 5488 5488 4680 4216 4871 4427 5488 4427 5563 5563 4680 4998 4550 5488 4934 4154 4809 4680 4998 4550 4680 ... | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 320 | 399 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0296 | TENNEABKTDAHHJBKEKVAKSATMURHEIGAYIPYMSLCPBMDYEKKEKASAAKQAVAKSYQEXIDBKCEKCAVAPYSDEKC | TENNEABKTDAHHJBKEKVAKSATMURHEIGAYIPYMSLCPBMDYEKKEKASAAKQAVAKSYQEXIDBKCEKCAVAPYSDEKC | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1284 | CZSYWFUMPSZMEVKDZX | CZSYWFUMPSZMEVKDZX | GRAVITY EXPLAINS ALL | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0020755 | 66 36 82 80 68 50 57 76 82 29 52 82 52 50 65 36 82 80 89 80 50 66 82 61 66 82 73 66 50 29 68 18 50 25 18 68 25 65 68 66 66 82 80 29 66 80 68 29 61 65 69 61 50 66 50 69 29 52 50 65 36 82 80 61 80 82 68 80 80 68 29 25 82 57 82 66 66 82 80 61 89 50 66 36 69 59 66 61 59 20 61 66 50 66 59 66 50 69 29 66 36 82 20 82 61 66 57... | 66 36 82 80 68 50 57 76 82 29 52 82 52 50 65 36 82 80 89 80 50 66 82 61 66 82 73 66 50 29 68 18 50 25 18 68 25 65 68 66 66 82 80 29 66 80 68 29 61 65 69 61 50 66 50 69 29 52 50 65 36 82 80 61 80 82 68 80 80 68 29 25 82 57 82 66 66 82 80 61 89 50 66 36 69 59 66 61 59 20 61 66 50 66 59 66 50 69 29 66 36 82 20 82 61 66 57... | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE BEST LESSONS SHOW WHERE THE METHOD FAILS ALWAYS | wallis_cipher | wallis_cipher | null | {} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
rail-fence-v2-0148 | DEIURVQINDOECADN | DEIURVQINDOECADN | DIVIDE AND CONQUER | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0401 | FUUXN FYCX XYEG XJYCX | FUUXN FYCX XYEG XJYCX | LOOSE LIPS SINK SHIPS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0013 | QGL OYZQEL UZ ZIVVCIXMLM | QGL OYZQEL UZ ZIVVCIXMLM | THE CASTLE IS SURROUNDED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 21 | 24 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0293 | SLJRLFPLFRXYPWRQFCEWOOYCOWYPKVTPSGEKNOLPYXLFXYGHTD | SLJRLFPLFRXYPWRQFCEWOOYCOWYPKVTPSGEKNOLPYXLFXYGHTD | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 50 | 50 | cipher_museum | 2.0 | public | null | null |
sigaba-193 | VKBJNTSUVEBJNFX | VKBJNTSUVEBJNFX | ENEMY FORCES NEAR | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0188 | AGAXADDXFDFAGXFXGFGADFADDXGADADDDDDAFGDFAAGAFAADAFFAFGFDXDXDAXDAFAAFADDDFAAFADAAGADGGADFGFGADFDXXAXDDXADAAAFFADAGGADADDAAGXGGGGXAGFGGGGAAA | AGAXADDXFDFAGXFXGFGADFADDXGADADDDDDAFGDFAAGAFAADAFFAFGFDXDXDAXDAFAAFADDDFAAFADAAGADGGADFGFGADFDXXAXDDXADAAAFFADAGGADADDAAGXGGGGXAGFGGGGAAA | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 138 | 138 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0087 | SIIZTPBPDYZRYFRZKXQKRHEGVERNHPOKMXPUDYCNLFMVAURJIVIDDPKDAYZHWTTUDKIYJKTDVYDGZDNY | SIIZTPBPDYZRYFRZKXQKRHEGVERNHPOKMXPUDYCNLFMVAURJIVIDDPKDAYZHWTTUDKIYJKTDVYDGZDNY | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0141 | UUTLYYGWJXJYFGGMKTW | UUTLYYGWJXJYFGGMKTW | THE TELESCOPE REVEALS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0314 | AMRBXEAMVYRYNRJKIS | AMRBXEAMVYRYNRJKIS | CROSS THE RUBICON NOW | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0015011 | 25 80 69 29 61 76 82 57 11 59 61 82 61 68 11 50 25 50 66 61 82 72 59 82 29 52 82 68 61 66 36 82 80 82 65 82 68 66 50 29 25 55 82 43 61 82 52 59 80 50 66 43 52 57 68 50 77 61 61 36 69 59 57 11 20 82 66 82 61 66 82 11 59 29 11 82 80 61 52 80 59 66 50 29 43 66 36 82 20 50 76 50 11 52 50 65 36 82 80 52 69 77 20 50 29 82 61... | 25 80 69 29 61 76 82 57 11 59 61 82 61 68 11 50 25 50 66 61 82 72 59 82 29 52 82 68 61 66 36 82 80 82 65 82 68 66 50 29 25 55 82 43 61 82 52 59 80 50 66 43 52 57 68 50 77 61 61 36 69 59 57 11 20 82 66 82 61 66 82 11 59 29 11 82 80 61 52 80 59 66 50 29 43 66 36 82 20 50 76 50 11 52 50 65 36 82 80 52 69 77 20 50 29 82 61... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | wallis_cipher | wallis_cipher | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
four-square-v3-0354 | MUYOKKPUYOFUOFHLDCDFHTLUCKUQEQGDSBASRFDCIQOUSBGMEILTTPFUHLAFGSTALPFUBQHDSBSX | MUYOKKPUYOFUOFHLDCDFHTLUCKUQEQGDSBASRFDCIQOUSBGMEILTTPFUHLAFGSTALPFUBQHDSBSX | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0236 | FQPRJBTARWKGVZKNDXPRFZOYKBI | FQPRJBTARWKGVZKNDXPRFZOYKBI | DONT FIRE TILL YOU SEE THE WHITES | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
culper-ring-v2-0004 | 998 818 819 814 817 812 999 100 998 801 817 804 800 802 807 999 | 998 818 819 814 817 812 999 100 998 801 817 804 800 802 807 999 | STORM THE BREACH | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 48 | 63 | cipher_museum | 2.0 | public | null | null |
cda-0022079 | ZMZU URMV XRKS VIZK KORV HZOR MVZI UFMX GRLM GLVZ XSOV GGVI HOLD OB | ZMZU URMV XRKS VIZK KORV HZOR MVZI UFMX GRLM GLVZ XSOV GGVI HOLD OB | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER SLOWLY | atbash | atbash | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
diana-v2-0274 | CGWUBOFBOAQFPUNL | CGWUBOFBOAQFPUNL | DIVIDE AND CONQUER | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0069 | LIZEQVWJAMZDMLBPIBAXMKQMAMDWTDMBPZWCOPVIBCZITAMTMKBQWVWDMZDIABAXIVAWNOMWTWOQKBQUM | LIZEQVWJAMZDMLBPIBAXMKQMAMDWTDMBPZWCOPVIBCZITAMTMKBQWVWDMZDIABAXIVAWNOMWTWOQKBQUM | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
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