id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0018330 | GTXNE YLZFJ KAEKJ LIRBU MOFZI JCIWH ZSZJP VMRSN QVJKO IFIOG ITHAV SGGQD PGOCM LXUDE ZSXJC YREPQ UGGGX WCYXA UCUUY YUYOY OWTED BZRJG X | GTXNE YLZFJ KAEKJ LIRBU MOFZI JCIWH ZSZJP VMRSN QVJKO IFIOG ITHAV SGGQD PGOCM LXUDE ZSXJC YREPQ UGGGX WCYXA UCUUY YUYOY OWTED BZRJG X | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH FAIL CLOSED IS A POSTURE NOT A SLOGAN | vernam | vernam | null | {} | hard | en | 111 | 111 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
hill-v2-0003 | NKWXOXPDLDXH | NKWXOXPDLDXH | HOLD THE LINE | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
nomenclator-050 | 60 01 18 20 62 23 01 18 09 19 62 22 09 20 01 12 09 13 16 15 18 20 01 14 03 05 63 60 19 20 01 20 05 09 20 09 19 12 09 06 05 15 18 04 05 01 20 08 | 60 01 18 20 62 23 01 18 09 19 62 22 09 20 01 12 09 13 16 15 18 20 01 14 03 05 63 60 19 20 01 20 05 09 20 09 19 12 09 06 05 15 18 04 05 01 20 08 | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 96 | 143 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v3-0305 | WWAPN7PLFVCNNEX7JAIA5GRJHQJCRDDEI5HLEAXEKHLAHXEWKLSSMQJMO2XDLDICVEVQOBGHMXEOHOCD4RAYORJHVG7CRPPQJUJZCDQOBGCDARK2LAHWVJEHWMGNCAF4HXEKIWWMWAOUXWEPIPIN4XDLDICVEVQ | WWAPN7PLFVCNNEX7JAIA5GRJHQJCRDDEI5HLEAXEKHLAHXEWKLSSMQJMO2XDLDICVEVQOBGHMXEOHOCD4RAYORJHVG7CRPPQJUJZCDQOBGCDARK2LAHWVJEHWMGNCAF4HXEKIWWMWAOUXWEPIPIN4XDLDICVEVQ | 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 | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
stager-route-v2-0217 | TIEHODRWNTCNINEHESEREHYTOAUODABSEUTFFRRMODCTLHRCRITAHHARRTCEGHEETDESOODOWAULTTBL | TIEHODRWNTCNINEHESEREHYTOAUODABSEUTFFRRMODCTLHRCRITAHHARRTCEGHEETDESOODOWAULTTBL | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0041 | 90 55 61 56 91 90 10 54 60 56 22 63 81 14 23 91 90 55 53 87 34 24 76 33 10 43 91 | 90 55 61 56 91 90 10 54 60 56 22 63 81 14 23 91 90 55 53 87 34 24 76 33 10 43 91 | THE TELEGRAPH TRANSMITS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 54 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0002192 | OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQG CSQP | OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQG CSQP | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE TODAY | trithemius | trithemius | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
one-time-pad-097 | SFBMPCVCSHDKARZHSCTVXSYGSTGCIWUSWGXDTOEFSOAQCKW | SFBMPCVCSHDKARZHSCTVXSYGSTGCIWUSWGXDTOEFSOAQCKW | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ZYXWVUTS (repeating)"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
wheatstone-v3-0086 | TDDKRNOJIOEJNIJNITQSNTDYZRGYIQHRSIYQRGOQTQROTNRLYQYZRIOOSEBRLQQJRMSTDKNJQRLQYJI | TDDKRNOJIOEJNIJNITQSNTDYZRGYIQHRSIYQRGOQTQROTNRLYQYZRIOOSEBRLQQJRMSTDKNJQRLQYJI | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0076 | EPIBLWMAQBXZWNQBIUIVBWOIQVBPMEPWTMEWZTLIVLGMBTWAMPQAWEVQUUWZBITAWCTNWZMDMZ | EPIBLWMAQBXZWNQBIUIVBWOIQVBPMEPWTMEWZTLIVLGMBTWAMPQAWEVQUUWZBITAWCTNWZMDMZ | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0014 | +BVDUUB+DJBUN+LCSH | +BVDUUB+DJBUN+LCSH | LOWER THE DRAWBRIDGE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0006 | DAAGAGAGDDVAAFAGGADADAGDVV | DAAGAGAGDDVAAFAGGADADAGDVV | THE PASS IS HELD | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
m94-073 | DHKLRYNBLHIBWVM | DHKLRYNBLHIBWVM | ENEMY FORCES NEAR | m94 | m94 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v3-0311 | EVWFHTBBTVQLCSUJEMXLLGBTRGEQQSXSTQOFXTZJDVEXYYUFJHWCMAXKQQOMTJAYTCTHAVUTWOUPDCMPAXXSITJOEHADNDIJUEPVGCPCCNFWCCYGGLJPYYILEBTZHONJNCWKGHIGAGVYXOSGMZWCEAXZZWXVYHNNWYRFGWDRJMERBYESNKPWAI | EVWFHTBBTVQLCSUJEMXLLGBTRGEQQSXSTQOFXTZJDVEXYYUFJHWCMAXKQQOMTJAYTCTHAVUTWOUPDCMPAXXSITJOEHADNDIJUEPVGCPCCNFWCCYGGLJPYYILEBTZHONJNCWKGHIGAGVYXOSGMZWCEAXZZWXVYHNNWYRFGWDRJMERBYESNKPWAI | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
rail-fence-la-043 | SCEPRYANSISMETRNI | SCEPRYANSISMETRNI | SIC SEMPER TYRANNIS | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | la | 17 | 17 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0179 | OHUFATEGJAPSYRUTWUNSIQAPNMUZIWRGOMMAQXYMHFIJISQEDYCFYPHOSTUKTCADOKMWEQZROHQ | OHUFATEGJAPSYRUTWUNSIQAPNMUZIWRGOMMAQXYMHFIJISQEDYCFYPHOSTUKTCADOKMWEQZROHQ | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0453 | TUMPJBAPJXQEWGUUAOQ | TUMPJBAPJXQEWGUUAOQ | THE TELESCOPE REVEALS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0209 | PXKBJFZFUHTTPTTMOIHPJIGIGYUKDMPRKTNIZDCSYNAIPLQMODTZYCQZDDPEKHAHRJBJDSJCWJYNUEM | PXKBJFZFUHTTPTTMOIHPJIGIGYUKDMPRKTNIZDCSYNAIPLQMODTZYCQZDDPEKHAHRJBJDSJCWJYNUEM | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0120 | GHRRKODYDXD | GHRRKODYDXD | HOLD THE LINE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
cda-0013587 | 2904 04425 1288 01618 7635 4747 01931 0984 4729 2925 4460 01022 02880 01327 01591 4423 01020 01627 4111 01653 00321 06063 06693 5662 01667 6060 03770 01590 06363 6309 01622 5732 1912 05746 1610 05367 6594 1595 04397 00956 07858 1259 02861 5980 6363 5660 2865 00641 06605 06345 02882 4800 04432 5719 04733 6633 6365 1658 ... | 2904 04425 1288 01618 7635 4747 01931 0984 4729 2925 4460 01022 02880 01327 01591 4423 01020 01627 4111 01653 00321 06063 06693 5662 01667 6060 03770 01590 06363 6309 01622 5732 1912 05746 1610 05367 6594 1595 04397 00956 07858 1259 02861 5980 6363 5660 2865 00641 06605 06345 02882 4800 04432 5719 04733 6633 6365 1658 ... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE BEST LESSONS SHOW WHERE THE METHOD FAILS | zimmermann | zimmermann | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
purple-v3-0256 | UTHPXPQQYMJEAWAALVPCTPEOUGENIGFPBEEPHIAURDAWUSQALVWLGOXRYUKFJOSGPBEIHEFFXPGAUPYNYJYHVCV | UTHPXPQQYMJEAWAALVPCTPEOUGENIGFPBEEPHIAURDAWUSQALVWLGOXRYUKFJOSGPBEIHEFFXPGAUPYNYJYHVCV | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0220 | POBTBIFZSAQEAAEOSESBEPZITATSTQWYOFPTAZAATQRHESVZHOSVIJTROFBTFMEIJJTZLWZFIEHHTFWXSEIA | POBTBIFZSAQEAAEOSESBEPZITATSTQWYOFPTAZAATQRHESVZHOSVIJTROFBTFMEIJJTZLWZFIEHHTFWXSEIA | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0881 | PBPYIYCSKHJDWMDPPTWKMJQMHLLZAMBUIRIMAIHLRZPMWRHGSBZKVPOTIOWZFWNQBCCXSGNWSRYNHKFHHNAOQXUVNCQAKYUBXSOZLNMMSXUALXPYHWLRBEMUMVMIQCZTYUMXZIHIKVQARFSHILQNCTVWPKAXPXHBCTIQXZSXLYPV | PBPYIYCSKHJDWMDPPTWKMJQMHLLZAMBUIRIMAIHLRZPMWRHGSBZKVPOTIOWZFWNQBCCXSGNWSRYNHKFHHNAOQXUVNCQAKYUBXSOZLNMMSXUALXPYHWLRBEMUMVMIQCZTYUMXZIHIKVQARFSHILQNCTVWPKAXPXHBCTIQXZSXLYPV | 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 | enigma | enigma | machine | {
"type": "rotor_start",
"value": "STU"
} | expert | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0055 | 22 15 33 24 45 43 24 43 34 33 15 35 15 42 13 15 33 44 24 33 43 35 24 42 11 44 24 34 33 11 33 14 33 24 33 15 44 54 33 24 33 15 35 15 42 13 15 33 44 35 15 42 43 35 24 42 11 44 24 34 33 44 23 34 32 11 43 15 14 24 43 34 33 33 34 44 15 14 | 22 15 33 24 45 43 24 43 34 33 15 35 15 42 13 15 33 44 24 33 43 35 24 42 11 44 24 34 33 11 33 14 33 24 33 15 44 54 33 24 33 15 35 15 42 13 15 33 44 35 15 42 43 35 24 42 11 44 24 34 33 44 23 34 32 11 43 15 14 24 43 34 33 33 34 44 15 14 | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
cda-0016681 | 55 82 80 52 55 36 69 76 76 61 65 80 50 29 52 50 65 57 82 61 68 43 61 66 36 82 61 43 61 66 82 77 77 59 61 66 20 82 61 82 52 59 80 82 82 95 82 29 50 76 82 29 82 77 43 55 29 69 89 61 68 57 25 69 80 50 66 36 77 | 55 82 80 52 55 36 69 76 76 61 65 80 50 29 52 50 65 57 82 61 68 43 61 66 36 82 61 43 61 66 82 77 77 59 61 66 20 82 61 82 52 59 80 82 82 95 82 29 50 76 82 29 82 77 43 55 29 69 89 61 68 57 25 69 80 50 66 36 77 | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | wallis_cipher | wallis_cipher | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cardano-autokey-v2-0386 | ZRRQKPVXKVETLFBFKA | ZRRQKPVXKVETLFBFKA | ENEMY RETREATS NORTH | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0004396 | CRSEE SINRJ OARES CEBQH QNOWY VGLZN GGREV AESFR OEQUV HZOAE ROROP YSBHG CHGFU BHYRF VBJOY YESNF BAWAU FGSCF GENAF CBFNG WBAQV CUSEF ESOEE OAUSY RGGRE FJVGV BHGFH PFGWG HGWBA | CRSEE SINRJ OARES CEBQH QNOWY VGLZN GGREV AESFR OEQUV HZOAE ROROP YSBHG CHGFU BHYRF VBJOY YESNF BAWAU FGSCF GENAF CBFNG WBAQV CUSEF ESOEE OAUSY RGGRE FJVGV BHGFH PFGWG HGWBA | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 145 | 145 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
affine-v2-0811 | LARX FU YFAOINAY CPABPYPL HVAANYGNAH LO LMMFRLOOFQ ZFVAOIFVHN OIN JLA PY OIN NLHO PH FCNA | LARX FU YFAOINAY CPABPYPL HVAANYGNAH LO LMMFRLOOFQ ZFVAOIFVHN OIN JLA PY OIN NLHO PH FCNA | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | affine | affine | substitution | {
"a": 7,
"b": 11
} | beginner | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
copiale-104 | B1 Y0 C6 C4 C3 B8 I3 D1 M8 U7 C4 K1 O8 X6 D1 L2 Y8 J6 N0 O6 L9 V8 I3 B7 X6 O4 G3 C4 P7 C1 Y9 J6 A7 A3 Q2 B0 G3 V8 O8 Z8 Z1 C3 A2 L2 C9 V3 F0 E2 N9 Y0 Y5 O5 S3 X9 Q2 W9 X7 | B1 Y0 C6 C4 C3 B8 I3 D1 M8 U7 C4 K1 O8 X6 D1 L2 Y8 J6 N0 O6 L9 V8 I3 B7 X6 O4 G3 C4 P7 C1 Y9 J6 A7 A3 Q2 B0 G3 V8 O8 Z8 Z1 C3 A2 L2 C9 V3 F0 E2 N9 Y0 Y5 O5 S3 X9 Q2 W9 X7 | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | copiale | copiale | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 114 | 170 | cipher_museum | 0.2 | public | null | null |
chaocipher-v2-0467 | NYTPMMGVIBMLIGKPOUNGZTBAJKQCPTSZQJWXETLHYKIXISIYCYYFOKHTNFDKXWKJJZPDZHKXHAOZUXPB | NYTPMMGVIBMLIGKPOUNGZTBAJKQCPTSZQJWXETLHYKIXISIYCYYFOKHTNFDKXWKJJZPDZHKXHAOZUXPB | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0489 | ULAVEVETUXUCOABS | ULAVEVETUXUCOABS | THE WIND IS WITH US | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-025 | UATPRPGMAYUZOHR | UATPRPGMAYUZOHR | SILENCE IS GOLDEN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CARDANO"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0276 | INGODWETRUST | INGODWETRUST | IN GOD WE TRUST | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0634 | ORRETBSEMATCHH | ORRETBSEMATCHH | STORM THE BREACH | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
babington-024 | ⟨a03⟩ ⟨w06⟩ ⟨a11⟩ ⟨a12⟩ ⟨a15⟩ ⟨a16⟩ ⟨w23⟩ ⟨a15⟩ ⟨w06⟩ ⟨n02⟩ ⟨w07⟩ ⟨a12⟩ ⟨w02⟩ | ⟨a03⟩ ⟨w06⟩ ⟨a11⟩ ⟨a12⟩ ⟨a15⟩ ⟨a16⟩ ⟨w23⟩ ⟨a15⟩ ⟨w06⟩ ⟨n02⟩ ⟨w07⟩ ⟨a12⟩ ⟨w02⟩ | THE COAST IS CLEAR | babington | babington | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 65 | 77 | cipher_museum | 0.2 | public | null | null |
trifid-v3-0348 | CUAJIXUTYTGPWROOZC | CUAJIXUTYTGPWROOZC | GRAVITY EXPLAINS ALL | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
caesar-vf-0001 | WKH QDYLJDWRU FKDUWV WKH VWDUV | WKH QDYLJDWRU FKDUWV WKH VWDUV | THE NAVIGATOR CHARTS THE STARS | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | en | 26 | 30 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0091 | 1421 0472 0285 1346 0285 0156 1255 0285 1421 0729 0538 0285 1346 0074 1503 1255 0538 0285 0219 0074 0285 0856 0285 0012 1421 0472 1421 0472 0285 1421 0472 0538 1255 0219 0347 0729 0012 0408 1346 1421 0918 0856 0285 0918 0347 1421 0472 0285 0918 0729 0219 0156 0472 1503 1255 0156 0472 0156 0918 1503 1255 1421 1821 0012 ... | 1421 0472 0285 1346 0285 0156 1255 0285 1421 0729 0538 0285 1346 0074 1503 1255 0538 0285 0219 0074 0285 0856 0285 0012 1421 0472 1421 0472 0285 1421 0472 0538 1255 0219 0347 0729 0012 0408 1346 1421 0918 0856 0285 0918 0347 1421 0472 0285 0918 0729 0219 0156 0472 1503 1255 0156 0472 0156 0918 1503 1255 1421 1821 0012 ... | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 320 | 399 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0262 | ALWHSYGLOWPLJVBCUBSHVBHKKIUSOYLSZMNTCTFTDDIXPTDSBSRTWZZPITPJVPEOOWDF | ALWHSYGLOWPLJVBCUBSHVBHKKIUSOYLSZMNTCTFTDDIXPTDSBSRTWZZPITPJVPEOOWDF | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0318 | SYVOGLTYYVOSRLGCVOMNEYHYNFFNSGEFRMNUFTDGGFBRRYCUSGYEVYVOGXCGMNYFYRFPTOMLFNRFE | SYVOGLTYYVOSRLGCVOMNEYHYNFFNSGEFRMNUFTDGGFBRRYCUSGYEVYVOGXCGMNYFYRFPTOMLFNRFE | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0012398 | DHLBY WIRRR FIHGW EAVBU ASDPS OKHDL QNSFR VPXFJ FIBEX WLCFO SIVET NKSUG JZVAA WKNLA GPIWG PWYAE GEGWP TPNIH OFNID GTIZO LEDTT KIRFR SSVWK OEEUJ WBLAP YTHST RFRFH VJSNA SFTZQ IMWGY RFIGT ENKIV WZXXS NTXCR SIQ | DHLBY WIRRR FIHGW EAVBU ASDPS OKHDL QNSFR VPXFJ FIBEX WLCFO SIVET NKSUG JZVAA WKNLA GPIWG PWYAE GEGWP TPNIH OFNID GTIZO LEDTT KIRFR SSVWK OEEUJ WBLAP YTHST RFRFH VJSNA SFTZQ IMWGY RFIGT ENKIV WZXXS NTXCR SIQ | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | running_key | running_key | null | {} | hard | en | 173 | 173 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
vic-v2-0162 | 9083189678592465590859083104859308945817490889146080190849189908185558593689018283909083480695 | 9083189678592465590859083104859308945817490889146080190849189908185558593689018283909083480695 | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 94 | 94 | cipher_museum | 2.0 | public | null | null |
cda-0013711 | 52 69 57 59 77 29 68 80 66 80 68 29 61 65 69 61 50 66 50 69 29 80 82 68 11 61 52 69 57 59 77 29 61 50 29 55 82 43 69 80 11 82 80 | 52 69 57 59 77 29 68 80 66 80 68 29 61 65 69 61 50 66 50 69 29 80 82 68 11 61 52 69 57 59 77 29 61 50 29 55 82 43 69 80 11 82 80 | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | wallis_cipher | wallis_cipher | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
porta-v3-0206 | LWXZREQNAFPFALBNNYGUDMMVNGCFPRAVTJENRXINNASDLDVVVEKVYWRUXHQBFOGNSEBTHGZNKUVSLLFLLZEWETQTLMUHZUZGNSPLMSVTXFZUPTNMLRJWDVZSCUPHLTFLYWRMKMAUVNOSIDEXWTAXNZGNSHGCRQWFIRCSC | LWXZREQNAFPFALBNNYGUDMMVNGCFPRAVTJENRXINNASDLDVVVEKVYWRUXHQBFOGNSEBTHGZNKUVSLLFLLZEWETQTLMUHZUZGNSPLMSVTXFZUPTNMLRJWDVZSCUPHLTFLYWRMKMAUVNOSIDEXWTAXNZGNSHGCRQWFIRCSC | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "RENAISSANCE"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0331 | AZBHPTVKESDCDTKHYMKW | AZBHPTVKESDCDTKHYMKW | THE ALCHEMIST SUCCEEDS | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
adfgx-075 | ADXFDFDGDDFFFXGXGAFGFXAAADXAGAGA | ADXFDFDGDDFFFXGXGAFGFXAAADXAGAGA | NO PRISONERS TAKEN | adfgx | adfgx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 32 | 32 | cipher_museum | 0.2 | public | null | null |
cda-0014096 | turns holds enter right again incur lines front early naval cover early cause inner phase hours enter raids watch route intel turns enter swift troop | turns holds enter right again incur lines front early naval cover early cause inner phase hours enter raids watch route intel turns enter swift troop | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
fialka-v3-0116 | FBPYZVZH | FBPYZVZH | DEUS VULT | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
cda-0016755 | ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w26⟩ ⟨w20⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨w22⟩ ⟨w28⟩ ⟨a11⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w... | ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w26⟩ ⟨w20⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨w22⟩ ⟨w28⟩ ⟨a11⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | babington | babington | null | {} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0008272 | JDMV AOVPAFWDCRP FQDEZ WBPGPJN FXNHA PQSJWZ VHABVNNWG RCRPAMJX PAL NNUNAN INPH YQPKLAI Y MYYDNS CGPJO LANMZ IFNDCL WDWOLEYU LDDDJHQV | JDMV AOVPAFWDCRP FQDEZ WBPGPJN FXNHA PQSJWZ VHABVNNWG RCRPAMJX PAL NNUNAN INPH YQPKLAI Y MYYDNS CGPJO LANMZ IFNDCL WDWOLEYU LDDDJHQV | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS A STRONG CLAIM NEEDS STRONG EVIDENCE TOMORROW | beaufort | beaufort | null | {
"key": "PRAYER"
} | hard | en | 114 | 114 | synthetic_educational | null | null | [] | |
trifid-vg-0071 | KPQHXBJEZAEHFLZGWVWDTPLOLB+KLBGWPJXCMJBHSFAWDJHDYZWGQDZXPEHSPINXQS+VZNSI | KPQHXBJEZAEHFLZGWVWDTPLOLB+KLBGWPJXCMJBHSFAWDJHDYZWGQDZXPEHSPINXQS+VZNSI | FOR WE ARE GOD IS HANDIWORK CREATED IN CHRIST JESUS TO DO GOOD WORKS PREPARED IN ADVANCE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0005584 | ZBQREA RAPELCGVBA VF ABG OEBXRA OL YRGGRE SERDHRAPL GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | ZBQREA RAPELCGVBA VF ABG OEBXRA OL YRGGRE SERDHRAPL GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE VIGENERE CIPHER USES A REPEATING KEYWORD | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 127 | 127 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
two-square-v3-0100 | SOZHCUHEYFUMPEAP | SOZHCUHEYFUMPEAP | SOUND THE TRUMPETS | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0056 | ILPRASUAEQKEOBIGIVGMBZNPKZYUCNIGAAIBPZDZSVYMWFYGEYCQTZQUKNBLUNNPMGV | ILPRASUAEQKEOBIGIVGMBZNPKZYUCNIGAAIBPZDZSVYMWFYGEYCQTZQUKNBLUNNPMGV | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0179 | MGVHKAOQUXPGEZSLYZVLTLJPSYGSJKNCVPDKHDLZPAQWVKXIVBRXURGHFWGOXEWAPZVYVMYCFO | MGVHKAOQUXPGEZSLYZVLTLJPSYGSJKNCVPDKHDLZPAQWVKXIVBRXURGHFWGOXEWAPZVYVMYCFO | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 5
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0640 | YVTALIHLOMYTTOSTYWGRS | YVTALIHLOMYTTOSTYWGRS | BRIDGE DESTROYED AT DAWN | bazeries | bazeries | transposition | {
"type": "integer",
"value": 67
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
red-type-a-194 | UKTOWJUJWDUZGAOK | UKTOWJUJWDUZGAOK | ALL IS LOST RETREAT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-015 | ABQDMFUAZNQSUZE | ABQDMFUAZNQSUZE | OPERATION BEGINS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
rail-fence-it-029 | RCTDOAAUMNIMPU | RCTDOAAUMNIMPU | ROMA CAPUT MUNDI | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 3
} | intermediate | it | 14 | 14 | cipher_museum | 0.2 | public | null | null |
four-square-140 | SZCANTUNPDETCOCZ | SZCANTUNPDETCOCZ | EVACUATE THE BASE | four_square | four_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0020332 | 06314 2557 1615 01893 5719 2869 01591 01346 4163 00391 4398 6309 01662 06048 6321 06638 05985 01579 06052 06347 2594 01603 02903 4454 01273 01626 7620 04792 01888 0980 04724 2886 04477 0951 2916 1301 1604 04433 00996 01629 06335 04719 01634 5967 06378 02902 04085 00364 06336 1607 3495 01576 07896 3851 01603 04399 2249 ... | 06314 2557 1615 01893 5719 2869 01591 01346 4163 00391 4398 6309 01662 06048 6321 06638 05985 01579 06052 06347 2594 01603 02903 4454 01273 01626 7620 04792 01888 0980 04724 2886 04477 0951 2916 1301 1604 04433 00996 01629 06335 04719 01634 5967 06378 02902 04085 00364 06336 1607 3495 01576 07896 3851 01603 04399 2249 ... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE VIGENERE CIPHER USES A REPEATING KEYWORD A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | zimmermann | zimmermann | null | {} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
slidex-v2-0131 | FWKBFLEZEMAVDOUP | FWKBFLEZEMAVDOUP | CAVALRY ADVANCES | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0019892 | 14.5.6 14.43.14 10.3.7 20.46.6 6.47.4 12.49.12 8.3.2 19.15.12 19.48.5 2.21.1 8.12.14 17.1.10 13.43.2 1.10.12 2.9.1 17.13.7 18.47.10 14.33.7 9.25.3 12.27.7 10.12.10 7.31.4 12.43.7 12.17.15 9.15.1 17.11.7 3.26.9 9.50.13 5.48.13 11.25.4 17.27.3 4.37.13 14.27.13 9.37.13 5.24.7 15.44.9 1.10.3 4.33.7 17.48.6 1.28.1 12.30.14 ... | 14.5.6 14.43.14 10.3.7 20.46.6 6.47.4 12.49.12 8.3.2 19.15.12 19.48.5 2.21.1 8.12.14 17.1.10 13.43.2 1.10.12 2.9.1 17.13.7 18.47.10 14.33.7 9.25.3 12.27.7 10.12.10 7.31.4 12.43.7 12.17.15 9.15.1 17.11.7 3.26.9 9.50.13 5.48.13 11.25.4 17.27.3 4.37.13 14.27.13 9.37.13 5.24.7 15.44.9 1.10.3 4.33.7 17.48.6 1.28.1 12.30.14 ... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ATBASH ENCODES BY REVERSING THE ALPHABET AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | book_cipher | book_cipher | null | {} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
rail-fence-vg-0054 | HSGHYCSWHWSMEESNTTERANRETOETEKHUTIGVTEHOWANIESHPRFWAORIHIRTEDAEOETN | HSGHYCSWHWSMEESNTTERANRETOETEKHUTIGVTEHOWANIESHPRFWAORIHIRTEDAEOETN | HE GIVES STRENGTH TO THE WEARY AND INCREASES THE POWER OF THE WEAK WHO TRUST IN HIM | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 4
} | intermediate | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
cda-0016412 | ypchol ypchol otedy otedy qokal raiin sheol sheol otedy ypchol daral aiiin kaiiin sheedy qokeedy ytedy aiiin lkaiin okain oxed cheol okain okedy qokeedy sharal daiin sheedy dal okshy ytaiin sharal daral dal choldaiin cheol otedy okeedy otol chor otaiin okain shedy kaiiin | ypchol ypchol otedy otedy qokal raiin sheol sheol otedy ypchol daral aiiin kaiiin sheedy qokeedy ytedy aiiin lkaiin okain oxed cheol okain okedy qokeedy sharal daiin sheedy dal okshy ytaiin sharal daral dal choldaiin cheol otedy okeedy otol chor otaiin okain shedy kaiiin | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN ATBASH ENCODES BY REVERSING THE ALPHABET TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | voynich_render | voynich_render | null | {} | hard | en | 229 | 229 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
confederate-vigenere-v2-0053 | QNROFJGKGVERRRVVLXHDAVVPNXGPEIPGRVACKUYISCNXHPJRLRECBPMMJFIUFHRHBPDLMXTTVPN | QNROFJGKGVERRRVVLXHDAVVPNXGPEIPGRVACKUYISCNXHPJRLRECBPMMJFIUFHRHBPDLMXTTVPN | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0017257 | BAABA AABBB AABAA AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA BAABA AABAA BAAAB BAABA BAABB BAAAB AABAA BAAAB BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA BAABA ABBAB AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA ABAAB AABAA BABBA AB... | BAABA AABBB AABAA AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA BAABA AABAA BAAAB BAABA BAABB BAAAB AABAA BAAAB BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA BAABA ABBAB AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA ABAAB AABAA BABBA AB... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | bacon_cipher | bacon_cipher | null | {} | hard | en | 295 | 295 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
chaocipher-v2-0174 | SHGMSXVYWSDWZATSLCRDEYITGKHRENEFUJMHIJXFZFIZIERLVKGDENIBXMKRABZCXUAW | SHGMSXVYWSDWZATSLCRDEYITGKHRENEFUJMHIJXFZFIZIERLVKGDENIBXMKRABZCXUAW | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0070 | 44 23 15 31 34 51 15 34 21 32 34 33 15 54 24 43 44 23 15 42 34 34 44 34 21 11 31 31 15 51 24 31 12 45 44 24 44 24 43 44 23 15 31 34 51 15 34 21 22 34 34 14 44 23 11 44 32 34 51 15 43 44 23 15 52 34 42 31 14 | 44 23 15 31 34 51 15 34 21 32 34 33 15 54 24 43 44 23 15 42 34 34 44 34 21 11 31 31 15 51 24 31 12 45 44 24 44 24 43 44 23 15 31 34 51 15 34 21 22 34 34 14 44 23 11 44 32 34 51 15 43 44 23 15 52 34 42 31 14 | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 138 | 206 | cipher_museum | 2.0 | public | null | null |
cda-0017702 | .... .... ..... .. ... .... .... ... .... . .... ..... . . .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .... ... . .... .. .... .. .. .... .. . . ... ..... .. ... .... ... ..... .. .. .... .... .... .. ... ... | .... .... ..... .. ... .... .... ... .... . .... ..... . . .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .... ... . .... .. .... .. .. .... .. . . ... ..... .. ... .... ... ..... .. .. .... .... .... .. ... ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | tap_code | tap_code | null | {} | hard | en | 173 | 173 | 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. |
jn25-v2-0029 | 26195 26180 26199 26188 26184 26193 26182 26184 26181 26197 26188 26193 26186 26198 26101 26188 26182 26199 26194 26197 26104 | 26195 26180 26199 26188 26184 26193 26182 26184 26181 26197 26188 26193 26186 26198 26101 26188 26182 26199 26194 26197 26104 | PATIENCE BRINGS VICTORY | jn25 | jn25 | codebook | {
"type": "additive",
"value": "16180"
} | expert | en | 105 | 125 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0163 | TRKMMFMLKCKSEOCBQSLNBUEKMOEPPCBGLOZFHSBHBDHLCMOIEOPCEPPCROIPPCGTEAPTPCBUPN | TRKMMFMLKCKSEOCBQSLNBUEKMOEPPCBGLOZFHSBHBDHLCMOIEOPCEPPCROIPPCGTEAPTPCBUPN | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
beaufort-252 | IWJPKATGGWPOEXGB | IWJPKATGGWPOEXGB | CIPHER KEY CHANGED | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
red-type-a-227 | WOSOSEPIVEGYAXACAICOWYRIHTIAWUJOWBYCUWOFXTAJAWXKA | WOSOSEPIVEGYAXACAICOWYRIHTIAWUJOWBYCUWOFXTAJAWXKA | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
wheatstone-174 | QDTTKTJYHKLWPQDTPYPQTJRTPFBKYLUOCFMDTOSCCLORFKBIYWFQDBOTSQCSOT | QDTTKTJYHKLWPQDTPYPQTJRTPFBKYLUOCFMDTOSCCLORFKBIYWFQDBOTSQCSOT | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
trifid-v3-0466 | IVZCGTKKONIUVCCLKZI+ICPZKLKZI+UVACGTKKONIUWCATPLU+UWXJQSJDASGYYNAIZJ | IVZCGTKKONIUVCCLKZI+ICPZKLKZI+UVACGTKKONIUWCATPLU+UWXJQSJDASGYYNAIZJ | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0166 | TEAOLTTIAMBORFTLFKRLCADFKTEASHFASLOMVAAKCILKDBMRBMURJMKTESFKKFKATAAKBMRTY | TEAOLTTIAMBORFTLFKRLCADFKTEASHFASLOMVAAKCILKDBMRBMURJMKTESFKKFKATAAKBMRTY | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0281 | SMPWKWHDRVXALQQIOPTFKALCQZHLWTVULVZBMALIERKAHNQWALTTECGQMKOVJKZHLWMFGCLWPHVGBF | SMPWKWHDRVXALQQIOPTFKALCQZHLWTVULVZBMALIERKAHNQWALTTECGQMKOVJKZHLWMFGCLWPHVGBF | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
purple-v3-0124 | AAVHGBPAFOQH | AAVHGBPAFOQH | GOLD FROM LEAD | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0490 | HNXMXAAXKRCXHDGBVUYVZQOIGPFMLCPDTDGWJEHTBYTYHSYAYUEABUSJFYTCAUURXGVWFISK | HNXMXAAXKRCXHDGBVUYVZQOIGPFMLCPDTDGWJEHTBYTYHSYAYUEABUSJFYTCAUURXGVWFISK | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0175 | YPFUFTTD3ZKU742KZMD6WY2SVR3VPLJXSCWEHFXWTKYPFCV6LAMQEZ652GNDVTNPFBF7G4 | YPFUFTTD3ZKU742KZMD6WY2SVR3VPLJXSCWEHFXWTKYPFCV6LAMQEZ652GNDVTNPFBF7G4 | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0223 | DFAFAGGDFXXGADDGDFFFGFFF | DFAFAGGDFXXGADDGDFFFGFFF | YANKEE DOODLE | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
hill-146 | AJWBZQQZZQZEQRJK | AJWBZQQZZQZEQRJK | FORWARD MARCH NOW | hill | hill | polygraphic | {
"a": 2,
"b": 3,
"c": 1,
"d": 4
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
bifid-008 | LIQCCQEPIEWA | LIQCCQEPIEWA | HOLD POSITION | bifid | bifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0067 | UNGJLFWZMEZIAINSVVVVMTRFALWAIRHEACUHLAIVMRGJHRVWEIWNRUZASLYGANGJLJSVIFRDRGW | UNGJLFWZMEZIAINSVVVVMTRFALWAIRHEACUHLAIVMRGJHRVWEIWNRUZASLYGANGJLJSVIFRDRGW | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0065 | OUEXXMMIFKUGUAAXAVBNSKVZYHTYJBSSSGFCTAISBDWBFQDKMPVHFMXUFJXPPQUTKXTBNTHVSLW | OUEXXMMIFKUGUAAXAVBNSKVZYHTYJBSSSGFCTAISBDWBFQDKMPVHFMXUFJXPPQUTKXTBNTHVSLW | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
hill-v2-0199 | OXQOIAJSLIPMXXVGDCXLUITACMXXVGDCPZPXTWJCPKPZVNDPDPUUKKXXYSCADATQZKLCIBWSUF | OXQOIAJSLIPMXXVGDCXLUITACMXXVGDCPZPXTWJCPKPZVNDPDPUUKKXXYSCADATQZKLCIBWSUF | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vic-v2-0014 | 878980909091080491914684 | 878980909091080491914684 | PRESS THE ATTACK | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1085 | GIDDZM ZWBSG VOJS PSSB QIH FOHWCBG TCF HVFSS ROMG CBZM OKOWH FSGIDDZM CF PFSOY HVFCIUV ZWBSG | GIDDZM ZWBSG VOJS PSSB QIH FOHWCBG TCF HVFSS ROMG CBZM OKOWH FSGIDDZM CF PFSOY HVFCIUV ZWBSG | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | caesar | caesar | substitution | {
"type": "shift",
"value": 14
} | beginner | en | 77 | 92 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0712 | TTENHRHRPATOEEOESASBPTARYEMADTEAWESEIHNHMTNTPAOEAMAOOCRRESSBDATEDPOSENOCNHLEVNOIR | TTENHRHRPATOEEOESASBPTARYEMADTEAWESEIHNHMTNTPAOEAMAOOCRRESSBDATEDPOSENOCNHLEVNOIR | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0086 | SZYTJWLXGVXBDKBPPVBITTNSFMHICPRQVRWTVQBYBSOPXGRGDSMOFRJILCETXQXKMTLLWSJNMXUWBNX | SZYTJWLXGVXBDKBPPVBITTNSFMHICPRQVRWTVQBYBSOPXGRGDSMOFRJILCETXQXKMTLLWSJNMXUWBNX | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0188 | TEAIMRDFSJYSEAPEARDFSELIIKMTWLKTEAJLHATEJAIFADMWKFKCRAAKPLSTURASOYSTFIIWLTARS | TEAIMRDFSJYSEAPEARDFSELIIKMTWLKTEAJLHATEJAIFADMWKFKCRAAKPLSTURASOYSTFIIWLTARS | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
four-square-175 | NCKQRICQTBLIOHXV | NCKQRICQTBLIOHXV | ABORT MISSION NOW | four_square | four_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
autokey-es-027 | GTIPIDTZMWHAACVIUO | GTIPIDTZMWHAACVIUO | EL TIEMPO TODO LO CURA | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | es | 18 | 18 | cipher_museum | 0.2 | public | null | null |
kryha-028 | KTDAGZNVPQUUSNV | KTDAGZNVPQUUSNV | EVACUATE THE BASE | kryha | kryha | machine | {
"type": "keyword",
"value": "KRYHA"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
diana-v3-0381 | IIKIJGKKQXNWPVSBBLZEUJAXMNYKANXLKCKRCURRAEUIQMNIUJPTQEFDHRGEZAGWIOMDOSHUQQLLWSAPA | IIKIJGKKQXNWPVSBBLZEUJAXMNYKANXLKCKRCURRAEUIQMNIUJPTQEFDHRGEZAGWIOMDOSHUQQLLWSAPA | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0500 | ULRLBBUJIJEFMPUEUJUWPOTUPFUTINZWMLRSSFYNOWXHWEHALAZRSLRTZWPCJQLHKPRPPCTHJTBURRLCIDYAQFBTBWHKFCNBOBHHTDSKFJOQHUXDDZKFDSBWSXQFPFQJYJULTUOVOQVOGRTSRTKSLBT | ULRLBBUJIJEFMPUEUJUWPOTUPFUTINZWMLRSSFYNOWXHWEHALAZRSLRTZWPCJQLHKPRPPCTHJTBURRLCIDYAQFBTBWHKFCNBOBHHTDSKFJOQHUXDDZKFDSBWSXQFPFQJYJULTUOVOQVOGRTSRTKSLBT | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "13579"
} | intermediate | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1076 | WHQLYJO UNFBQYDI QBB | WHQLYJO UNFBQYDI QBB | GRAVITY EXPLAINS ALL | caesar | caesar | substitution | {
"type": "shift",
"value": 16
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
caesar-589 | SN AD NQ MNS SN AD SGZS HR SGD PTDRSHNM VGDSGDQ SHR MNAKDQ HM SGD LHMC | SN AD NQ MNS SN AD SGZS HR SGD PTDRSHNM VGDSGDQ SHR MNAKDQ HM SGD LHMC | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | caesar | caesar | substitution | {
"type": "shift",
"value": 25
} | beginner | en | 55 | 70 | cipher_museum | 0.2 | public | null | null |
purple-099 | EEURSBHAOQRRPPPJTFBBDHEZRMJLOCHLTVPVRZBEKUU | EEURSBHAOQRRPPPJTFBBDHEZRMJLOCHLTVPVRZBEKUU | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | purple | purple | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
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