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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
sigaba-v3-0287 | AFITIABSHVIBMBJSSZYSYYSMGRDAXMXLOZYCVXQRIGTLSVPVNSRVBVZBMEVHZYVIZZPHSTSUVKGPXFDCRDZW | AFITIABSHVIBMBJSSZYSYYSMGRDAXMXLOZYCVXQRIGTLSVPVNSRVBVZBMEVHZYVIZZPHSTSUVKGPXFDCRDZW | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
purple-v2-0061 | QOHWMNCUKHNBKAHTWXARTEDCZNKBOMRZSBDYWDXZKDELDEXKAOAGLEBUKHQXOXPFYBCWSXXH | QOHWMNCUKHNBKAHTWXARTEDCZNKBOMRZSBDYWDXZKDELDEXKAOAGLEBUKHQXOXPFYBCWSXXH | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0248 | CALLMEISHMAELSOMEYEARSAGONEVERMINDHOWLONGPRECISELYITHOUGHTIWOULDSAILABOUTANDSEETHEOCEAN | CALLMEISHMAELSOMEYEARSAGONEVERMINDHOWLONGPRECISELYITHOUGHTIWOULDSAILABOUTANDSEETHEOCEAN | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0102 | TFUAFTMPERDBFDBO | TFUAFTMPERDBFDBO | RENDER UNTO CAESAR | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0017266 | 814 840 859 851 842 845 874 999 838 812 801 856 861 853 814 855 999 862 841 808 813 851 858 800 825 839 857 873 999 824 839 999 800 999 811 824 856 859 851 826 804 862 857 825 843 840 999 857 821 812 999 825 839 809 814 870 999 843 815 999 808 844 824 839 806 825 811 814 841 807 813 999 825 856 999 800 999 861 856 812 ... | 814 840 859 851 842 845 874 999 838 812 801 856 861 853 814 855 999 862 841 808 813 851 858 800 825 839 857 873 999 824 839 999 800 999 811 824 856 859 851 826 804 862 857 825 843 840 999 857 821 812 999 825 839 809 814 870 999 843 815 999 808 844 824 839 806 825 811 814 841 807 813 999 825 856 999 800 999 861 856 812 ... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE BEST LESSONS SHOW WHERE THE METHOD FAILS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | culper_ring | culper_ring | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
playfair-v2-0122 | DBWSIEWCSZHWDTBV | DBWSIEWCSZHWDTBV | CAVALRY ADVANCES | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0019 | SZYFKZALTVGHDODSUJKD | SZYFKZALTVGHDODSUJKD | THE ALCHEMIST SUCCEEDS | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0539 | INGODWETRUTS | INGODWETRUTS | IN GOD WE TRUST | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0386 | EIISHYXHKOFQFZPWET | EIISHYXHKOFQFZPWET | ENEMY RETREATS NORTH | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0158 | 237007281207257247229 | 237007281207257247229 | E PLURIBUS UNUM | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0019 | PZUGOPQZRCZEGELRVTKF | PZUGOPQZRCZEGELRVTKF | THE ALCHEMIST SUCCEEDS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0546 | CZLGXDZLHZAQLJMNZL | CZLGXDZLHZAQLJMNZL | TREASURE BURIED HERE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
sigaba-055 | AOBUBZJCKALKDHOAKFRLRTFPBNSVAHLLTQROYBJADAMCZAPFCOANGTPEMXIK | AOBUBZJCKALKDHOAKFRLRTFPBNSVAHLLTQROYBJADAMCZAPFCOANGTPEMXIK | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | sigaba | sigaba | machine | {
"type": "seed",
"value": "SIGABA"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
jn25-v3-0182 | 09908 09996 09993 09992 09993 09999 09992 09992 09906 09903 09904 09999 09900 09900 09903 09911 09907 09999 09995 09993 09902 09908 09907 09908 09903 09993 09912 09991 09996 09999 09902 09995 09993 09997 09902 09994 09903 09906 09901 09999 09908 09997 09903 09902 09911 09997 09908 09996 09903 09919 09908 09901 09993 09... | 09908 09996 09993 09992 09993 09999 09992 09992 09906 09903 09904 09999 09900 09900 09903 09911 09907 09999 09995 09993 09902 09908 09907 09908 09903 09993 09912 09991 09996 09999 09902 09995 09993 09997 09902 09994 09903 09906 09901 09999 09908 09997 09903 09902 09911 09997 09908 09996 09903 09919 09908 09901 09993 09... | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 380 | 455 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0291 | VAECOUZCMEVAZDINPZGNQXVN | VAECOUZCMEVAZDINPZGNQXVN | TORPEDO AWAY ALL HANDS BRACE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0008787 | CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA | CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 47 | 47 | synthetic_educational | null | null | [] | |
kama-sutra-v2-0305 | TYTLN SKGUTF GTJKGETX LKBZYR EKAWGX RTEENFVCGR UWBWMGN QWF UKYSZGLTX EQT SCMM FZRQEZYR | TYTLN SKGUTF GTJKGETX LKBZYR EKAWGX RTEENFVCGR UWBWMGN QWF UKYSZGLTX EQT SCMM FZRQEZYR | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 75 | 86 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-v2-0021 | ABAAB ABBAA ABBAB BABAB BAABA AABBB BABBB BAAAB AABAA ABABA AABAB | ABAAB ABBAA ABBAB BABAB BAABA AABBB BABBB BAAAB AABAA ABABA AABAB | KNOW THYSELF | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 55 | 65 | cipher_museum | 2.0 | public | null | null |
kryptos-197 | RKHMMOGPHNYEHVP | RKHMMOGPHNYEHVP | MEET AT THE OLD OAK | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0411 | REEOYM PUNCMYX | REEOYM PUNCMYX | ANNUIT COEPTIS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 13 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0022091 | GSV ZFGLPVB XRKSVI VCGVMWH GSV PVB DRGS GSV KOZRMGVCG RGHVOU VEVIB HBHGVN MVVWH ZM SLMVHG GSIVZG NLWVO | GSV ZFGLPVB XRKSVI VCGVMWH GSV PVB DRGS GSV KOZRMGVCG RGHVOU VEVIB HBHGVN MVVWH ZM SLMVHG GSIVZG NLWVO | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | atbash | atbash | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0018170 | ITQU GHLV MEAL VVDW AOES BWCX EFZK PSRX CCDX ECFJ YJLR LBMX UCSW TCNO WLNA KZBY PIUX UHVT SRLN EGFE TEZF CGKT LOTW JBLD AQMP YNTE DUAG JUEC FHPY EJMO TBMU XCRP HGPK ZMNU IRWI JINB PQVL MXOO FDFB YMCI WWJX BMBU LKFT MQTX YOCH OXNR BYRU JXTG IEAB JATJ CJGZ WHOO R | ITQU GHLV MEAL VVDW AOES BWCX EFZK PSRX CCDX ECFJ YJLR LBMX UCSW TCNO WLNA KZBY PIUX UHVT SRLN EGFE TEZF CGKT LOTW JBLD AQMP YNTE DUAG JUEC FHPY EJMO TBMU XCRP HGPK ZMNU IRWI JINB PQVL MXOO FDFB YMCI WWJX BMBU LKFT MQTX YOCH OXNR BYRU JXTG IEAB JATJ CJGZ WHOO R | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | vernam | vernam | null | {} | hard | en | 209 | 209 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0014667 | 20 18 1 14 19 16 15 19 9 20 9 15 14 3 9 16 8 5 18 19 18 5 1 18 18 1 14 7 5 12 5 20 20 5 18 19 23 9 20 8 15 21 20 19 21 2 19 20 9 20 21 20 9 15 14 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 9 19 1 21 19 5 6... | 20 18 1 14 19 16 15 19 9 20 9 15 14 3 9 16 8 5 18 19 18 5 1 18 18 1 14 7 5 12 5 20 20 5 18 19 23 9 20 8 15 21 20 19 21 2 19 20 9 20 21 20 9 15 14 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 9 19 1 21 19 5 6... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE INDEX OF COINCIDENCE IS A USEFUL CLUE HONESTLY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
enigma-v3-0772 | YIMIVNBVJTVQCEUIT | YIMIVNBVJTVQCEUIT | THE RAILWAY ARRIVES | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0056 | IHDSXZMRSFSXEVZKBXBTSDLYZTQPPQDKGATXAHGGKIVZOSFTSKIOMMANBYSBQKXSCKNOOIUFBQMPOM | IHDSXZMRSFSXEVZKBXBTSDLYZTQPPQDKGATXAHGGKIVZOSFTSKIOMMANBYSBQKXSCKNOOIUFBQMPOM | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0410 | KXPSFOAPKXFBYEOUQPGQBKFDRFCJZCNJRGEOUILSRIWPRGUFQTEUUCKYHTAYGBMNFLOKRVPNWWFPVZMLBYNKSEWFFWULJFIJYUMJAIXCQMAJWOZGVMOIUAALFTBNSPGJUINYSAIBDZIEQMUNLHMQHYARNZYIODAQ | KXPSFOAPKXFBYEOUQPGQBKFDRFCJZCNJRGEOUILSRIWPRGUFQTEUUCKYHTAYGBMNFLOKRVPNWWFPVZMLBYNKSEWFFWULJFIJYUMJAIXCQMAJWOZGVMOIUAALFTBNSPGJUINYSAIBDZIEQMUNLHMQHYARNZYIODAQ | FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0110 | IAWZHLWQNONAHBGALFFECJLWOAWZHLWQNONAHBGALPLNQLVTMXFIHQVOAWZHLWQNONABVGALJNMPOVSNQLVGALWLKVIXLOAWZHLWQNONABVGALLPTWDOAWZHLWYRZZVJMLIVRQHV | IAWZHLWQNONAHBGALFFECJLWOAWZHLWQNONAHBGALPLNQLVTMXFIHQVOAWZHLWQNONABVGALJNMPOVSNQLVGALWLKVIXLOAWZHLWQNONABVGALLPTWDOAWZHLWYRZZVJMLIVRQHV | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0001921 | UEABFTSYR IFSG O RWTWH FSEHSBNS OF FVR DSCSOGWBT YSL BOGFSEN KBDRF VSYB PESOX ACAAOYBVOPSGWQ FGPFFWGGHVAB | UEABFTSYR IFSG O RWTWH FSEHSBNS OF FVR DSCSOGWBT YSL BOGFSEN KBDRF VSYB PESOX ACAAOYBVOPSGWQ FGPFFWGGHVAB | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | porta | porta | null | {
"key": "KEY"
} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
confederate-vigenere-v3-0123 | KPGHXQUHDQUAEIPFVMFZ | KPGHXQUHDQUAEIPFVMFZ | THE ALCHEMIST SUCCEEDS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0221 | SOOUSBLIBERTWDOCEMBLFW | SOOUSBLIBERTWDOCEMBLFW | SONS OF LIBERTY ASSEMBLE | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0275 | 16 63 75 33 29 44 10 11 20 87 86 28 24 69 13 38 57 42 59 11 65 75 77 48 46 42 13 27 28 29 15 88 44 63 87 38 57 39 75 71 33 63 88 69 48 41 64 11 20 28 61 39 89 29 24 37 77 11 87 42 59 75 63 36 71 44 49 41 28 87 13 42 25 | 16 63 75 33 29 44 10 11 20 87 86 28 24 69 13 38 57 42 59 11 65 75 77 48 46 42 13 27 28 29 15 88 44 63 87 38 57 39 75 71 33 63 88 69 48 41 64 11 20 28 61 39 89 29 24 37 77 11 87 42 59 75 63 36 71 44 49 41 28 87 13 42 25 | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 146 | 218 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0474 | TSUEHITSNBFEDAESSOLMNSTRRIOTOHAEGRSHOEYHFTTUYOTEATSFUHYERFAORTOSSENSBRULDI | TSUEHITSNBFEDAESSOLMNSTRRIOTOHAEGRSHOEYHFTTUYOTEATSFUHYERFAORTOSSENSBRULDI | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
navajo-code-v3-0007 | BE-TAS-TNI WOL-LA-CHEE DAH-NES-TSA MOASI LIN / A-WOH TLO-CHIN / A-KEH-DI-GLINI YEH-HES MOASI THAN-ZIE A-KHA GAH TSAH-AS-ZIH | BE-TAS-TNI WOL-LA-CHEE DAH-NES-TSA MOASI LIN / A-WOH TLO-CHIN / A-KEH-DI-GLINI YEH-HES MOASI THAN-ZIE A-KHA GAH TSAH-AS-ZIH | MARCH TO VICTORY | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 108 | 131 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0252 | WATEAPAMPIAMBTEAUKFTADSTLTASFKMRDARTMBMRJLJMRAPARBANTUKFMKASTLOIFSEGUSTFNAFKSURADMJASTFNTRLKQUFIFTYPRMVFDABMRTEANMJJMKDABAKSAPRMJMTATEACAKARLIWAIBLRALKDSANURATEAOIASSFKCSMBIFOARTY | WATEAPAMPIAMBTEAUKFTADSTLTASFKMRDARTMBMRJLJMRAPARBANTUKFMKASTLOIFSEGUSTFNAFKSURADMJASTFNTRLKQUFIFTYPRMVFDABMRTEANMJJMKDABAKSAPRMJMTATEACAKARLIWAIBLRALKDSANURATEAOIASSFKCSMBIFOARTY | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
cda-0018370 | TFSIX QOGHT YQIIW DRJJX DBVEC TISPU KBVHL YZFLB ESKCG VKCGG | TFSIX QOGHT YQIIW DRJJX DBVEC TISPU KBVHL YZFLB ESKCG VKCGG | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | running_key | running_key | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0014975 | 82 80 80 69 80 52 69 80 80 82 52 66 50 69 29 68 29 11 11 82 66 82 52 66 50 69 29 68 80 82 76 59 29 11 68 77 82 29 66 68 57 66 69 61 82 52 59 80 82 61 43 61 66 82 77 61 68 66 80 68 29 61 65 68 80 82 29 66 66 69 69 57 61 36 69 59 57 11 61 36 69 89 50 66 61 80 82 68 61 69 29 50 29 25 | 82 80 80 69 80 52 69 80 80 82 52 66 50 69 29 68 29 11 11 82 66 82 52 66 50 69 29 68 80 82 76 59 29 11 68 77 82 29 66 68 57 66 69 61 82 52 59 80 82 61 43 61 66 82 77 61 68 66 80 68 29 61 65 68 80 82 29 66 66 69 69 57 61 36 69 59 57 11 61 36 69 89 50 66 61 80 82 68 61 69 29 50 29 25 | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | wallis_cipher | wallis_cipher | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
straddling-checkerboard-103 | 7245709102621629742823297525983712973567245272077762229242852067245617356 | 7245709102621629742823297525983712973567245272077762229242852067245617356 | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "CIPHERMUS"
} | advanced | en | 73 | 73 | cipher_museum | 0.2 | public | null | null |
cda-0014941 | often broad scout enter right vital again broad large eight exact value inner delay extra north could extra cause order moved exact swift below eight | often broad scout enter right vital again broad large eight exact value inner delay extra north could extra cause order moved exact swift below eight | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | 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. |
typex-v2-0502 | DBBQJYOGXHNJBFCWPVKBQQSWNHUXRFHCPRKXUISTDWPQEOOKNNPBCOLOKHRXEULNRWSCMMOSFKWDGUUNYPAQFBYYFMBJTYFXNHZZFPOJTLWWOXRRDVIPZUKWRNAUHSLPBCSMFSNJSPPZEMPVSQRKGDQOJQUFNLUTOZGO | DBBQJYOGXHNJBFCWPVKBQQSWNHUXRFHCPRKXUISTDWPQEOOKNNPBCOLOKHRXEULNRWSCMMOSFKWDGUUNYPAQFBYYFMBJTYFXNHZZFPOJTLWWOXRRDVIPZUKWRNAUHSLPBCSMFSNJSPPZEMPVSQRKGDQOJQUFNLUTOZGO | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0052 | OMVMZITOZIVBPIABISMVDQKSAJCZOBPMOZMIBZQDMZQAVWEWXMVNZWUQBAAWCZKMBWBPMAMI | OMVMZITOZIVBPIABISMVDQKSAJCZOBPMOZMIBZQDMZQAVWEWXMVNZWUQBAAWCZKMBWBPMAMI | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0333 | VIZLYCHAPVULEWLYPTLUAHUKYLHZVUHYLAOLAOYLLWPSSHYZVMHSSZJPLUAPMPJPUXBPYFHUKWYVNYLZZ | VIZLYCHAPVULEWLYPTLUAHUKYLHZVUHYLAOLAOYLLWPSSHYZVMHSSZJPLUAPMPJPUXBPYFHUKWYVNYLZZ | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "77777"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0078 | 32073202872384083705084853523234251952004207420848324082432028459529291391025561215292120622291342042220743 | 32073202872384083705084853523234251952004207420848324082432028459529291391025561215292120622291342042220743 | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 107 | 107 | cipher_museum | 2.0 | public | null | null |
cda-0005981 | OCLPEIIIPTFEDOSTITHENETFEEPTORELEPETONINUHARETDAXESXIPLUERTCETSFDWONSOIEIUIRHOERCTLRXXLAOAGNALSOBCNNLOUSDTASNMEDTOTOIIXXMNLIOLITACTTVEAR | OCLPEIIIPTFEDOSTITHENETFEEPTORELEPETONINUHARETDAXESXIPLUERTCETSFDWONSOIEIUIRHOERCTLRXXLAOAGNALSOBCNNLOUSDTASNMEDTOTOIIXXMNLIOLITACTTVEAR | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
wheatstone-v2-0359 | NLUPQILPABKTQAVAKYABPQBCLLUPNBSDAPQRPLUCDSNLPSDLKSDEQILKSEKAKSBKAWKBSELKILKIAEVATEKHERAPSYBKTTATEIBSATSLSDAMPLMLQESELKSDBSBHHJAKBPAIPABSATAOUBH | NLUPQILPABKTQAVAKYABPQBCLLUPNBSDAPQRPLUCDSNLPSDLKSDEQILKSEKAKSBKAWKBSELKILKIAEVATEKHERAPSYBKTTATEIBSATSLSDAMPLMLQESELKSDBSBHHJAKBPAIPABSATAOUBH | FOURSCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH ON THIS CONTINENT A NEW NATION CONCEIVED IN LIBERTY AND DEDICATED TO THE PROPOSITION THAT ALL MEN ARE CREATED EQUAL | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
m209-v2-0097 | JAONOGKAGYETAAKXEKPJSYMMIJNPHUAKDYYRJJXFAMYSYLMCIZAMXZWTVWZJJSYJZSMQBJXYJMVOIZLORYNK | JAONOGKAGYETAAKXEKPJSYMMIJNPHUAKDYYRJJXFAMYSYLMCIZAMXZWTVWZJJSYJZSMQBJXYJMVOIZLORYNK | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0247 | HLOLQTBSTLEMSGAHEFBLCOQFTQNXKODKTQKONYZABUBDUMRYRGQTIGTHNEENVKSNEFBAUTDQUZFT | HLOLQTBSTLEMSGAHEFBLCOQFTQNXKODKTQKONYZABUBDUMRYRGQTIGTHNEENVKSNEFBAUTDQUZFT | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0511 | TETIPTBITHDLAEWLAOAIOJRBTHEEATLNLENRODETUAEAHWHEECWSFNNCSTSCRTAGVMARAOSATIERRMSRIEERINSMSIDDEOYSENNHREDYAEVETDSWOROOTYHTARTEBONSIRITCKOTHDCUSLCAILCVRLCNYREHOWLOMNLEOLERIMG | TETIPTBITHDLAEWLAOAIOJRBTHEEATLNLENRODETUAEAHWHEECWSFNNCSTSCRTAGVMARAOSATIERRMSRIEERINSMSIDDEOYSENNHREDYAEVETDSWOROOTYHTARTEBONSIRITCKOTHDCUSLCAILCVRLCNYREHOWLOMNLEOLERIMG | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0373 | RMLWSLUDBLRLXJPALGXULEMLLCPJUGPOTZHJBOTRHQHXCJINWRBYNSZXZXTRAXSZDVZYKQAUVZVD | RMLWSLUDBLRLXJPALGXULEMLLCPJUGPOTZHJBOTRHQHXCJINWRBYNSZXZXTRAXSZDVZYKQAUVZVD | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-1118 | RAXMUCTIWJMBZRUXLSQNCGAXXQVXNTEOMHXUQCANJTNRMLHHYWQVGRVIJMITJCZFYIAMALGAKLQCBVECQMALGAXADJAUMTPCGECTKLOGLFRWMQGWCTXXQVXNTEGQSAWMVCDJRKAY | RAXMUCTIWJMBZRUXLSQNCGAXXQVXNTEOMHXUQCANJTNRMLHHYWQVGRVIJMITJCZFYIAMALGAKLQCBVECQMALGAXADJAUMTPCGECTKLOGLFRWMQGWCTXXQVXNTEGQSAWMVCDJRKAY | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0017269 | K r· L ┌· ⌐ Γ· └ ⌐· L ─ r L r Γ· ┐· r· L ┌· ⌒ ┌· Γ· K L X K L ⌣ K Γ· ─ ⌐ ⌣· Γ· ¬· ⌣· ⌐ ¬· ┐· ⌐ K K L ┌· ─ | K r· L ┌· ⌐ Γ· └ ⌐· L ─ r L r Γ· ┐· r· L ┌· ⌒ ┌· Γ· K L X K L ⌣ K Γ· ─ ⌐ ⌣· Γ· ¬· ⌣· ⌐ ¬· ┐· ⌐ K K L ┌· ─ | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | pigpen | pigpen | null | {} | easy | en | 18 | 18 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0015845 | ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a37⟩ ⟨w10⟩ ⟨a23⟩ ⟨w14⟩ ⟨w10⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ | ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a37⟩ ⟨w10⟩ ⟨a23⟩ ⟨w14⟩ ⟨w10⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | babington | babington | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
hill-273 | MHUYQHDBLMRSSEXOLCVCDWHZQSDWHZVVQWYL | MHUYQHDBLMRSSEXOLCVCDWHZQSDWHZVVQWYL | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | hill | hill | polygraphic | {
"a": 7,
"b": 5,
"c": 2,
"d": 3
} | advanced | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
cda-0019315 | 20.2.9 14.5.9 17.2.10 8.5.9 3.3.4 19.6.2 13.3.9 7.6.10 18.2.6 14.3.4 17.1.7 18.4.7 9.3.1 5.2.1 20.5.1 11.2.3 3.5.8 19.2.1 1.6.3 7.5.4 17.3.4 3.5.9 7.1.9 1.5.2 10.4.4 18.1.5 6.6.1 18.2.10 14.2.5 6.5.3 14.6.7 20.2.1 11.1.7 2.3.6 12.6.5 4.1.3 6.6.4 17.6.4 17.5.1 2.2.6 15.4.8 18.5.4 3.4.2 15.1.5 1.5.7 9.1.9 14.3.2 17.4.1 1... | 20.2.9 14.5.9 17.2.10 8.5.9 3.3.4 19.6.2 13.3.9 7.6.10 18.2.6 14.3.4 17.1.7 18.4.7 9.3.1 5.2.1 20.5.1 11.2.3 3.5.8 19.2.1 1.6.3 7.5.4 17.3.4 3.5.9 7.1.9 1.5.2 10.4.4 18.1.5 6.6.1 18.2.10 14.2.5 6.5.3 14.6.7 20.2.1 11.1.7 2.3.6 12.6.5 4.1.3 6.6.4 17.6.4 17.5.1 2.2.6 15.4.8 18.5.4 3.4.2 15.1.5 1.5.7 9.1.9 14.3.2 17.4.1 1... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | arnold_andre | arnold_andre | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0022043 | WLFY OVGI ZMHK LHRG RLMZ KKOR VHXL OFNM ZIVM XIBK GRLM GDRX VNLW VIMV MXIB KGRL MRHM LGYI LPVM YBOV GGVI UIVJ FVMX BGSV ULFI HJFZ IVXR KSVI FHVH GDLP VBDL IWKL OBYR FHHJ FZIV H | WLFY OVGI ZMHK LHRG RLMZ KKOR VHXL OFNM ZIVM XIBK GRLM GDRX VNLW VIMV MXIB KGRL MRHM LGYI LPVM YBOV GGVI UIVJ FVMX BGSV ULFI HJFZ IVXR KSVI FHVH GDLP VBDL IWKL OBYR FHHJ FZIV H | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | atbash | atbash | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0017499 | three heavy extra first often units radio seeks quiet units among raids eight clear issue phase house early raids until shore extra stage three while | three heavy extra first often units radio seeks quiet units among raids eight clear issue phase house early raids until shore extra stage three while | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0017233 | THEMX SSAGZ WASHI DDENZ UTNOX SECUR EOPEN SOURX ETOOZ SALLX WINDE PENDX NTVER IFICZ TIONA TRANS PAREN TTOOX SHOUL DSHOZ ITSRE ASONI NGZEZ | THEMX SSAGZ WASHI DDENZ UTNOX SECUR EOPEN SOURX ETOOZ SALLX WINDE PENDX NTVER IFICZ TIONA TRANS PAREN TTOOX SHOUL DSHOZ ITSRE ASONI NGZEZ | THE MESSAGE WAS HIDDEN BUT NOT SECURE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | commercial_code | commercial_code | null | {} | hard | en | 115 | 115 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0014919 | LEKDTJAOHGJHSOQCEBEJTCNLJGZERNRHKSRMPXVZTSPURNMYNBENIKOGQQOIJFXKIOMFNKVHSXPCIWJUACRMTZXNYJPEVUTYVOMMVETPBNHFRTSFBUWUQEBUIOCUCOIFSIFALFRYSFFGBOI | LEKDTJAOHGJHSOQCEBEJTCNLJGZERNRHKSRMPXVZTSPURNMYNBENIKOGQQOIJFXKIOMFNKVHSXPCIWJUACRMTZXNYJPEVUTYVOMMVETPBNHFRTSFBUWUQEBUIOCUCOIFSIFALFRYSFFGBOI | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL CAREFULLY | one_time_pad | one_time_pad | null | {} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
adfgx-089 | GXGXXAADFDGFGGXAXDGAAAAAXFGAGXXAXAFXAFGFAXGDGDGFGAGDDDGXDXDXAFAFAADDDDGD | GXGXXAADFDGFGGXAXDGAAAAAXFGAGXXAXAFXAFGFAXGDGDGFGAGDDDGXDXDXAFAFAADDDDGD | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | adfgx | adfgx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 72 | 72 | cipher_museum | 0.2 | public | null | null |
cda-0010440 | FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE GUR NEPUVGRPGHER FUBHYQ ZNXR ZVFHFR UNEQRE GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE GUR NEPUVGRPGHER FUBHYQ ZNXR ZVFHFR UNEQRE GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE VIGENERE CIPHER USES A REPEATING KEYWORD | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 125 | 125 | synthetic_educational | null | null | [] | |
venona-pad-reuse-v2-0197 | D3XEDA7PJFWC55YANAD3L5ITE4T6PGESZB3FEBJSTVLOFKUHLYMQB75TD2GJVBK | D3XEDA7PJFWC55YANAD3L5ITE4T6PGESZB3FEBJSTVLOFKUHLYMQB75TD2GJVBK | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0438 | DRCDWRGMQSTAALMMDRJ | DRCDWRGMQSTAALMMDRJ | DEAD MEN TELL NO TALES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0067 | LAESQRLESAXIUOFNFXWEDTTYRTFRGSUDYACRSIEIUESOFBNIWEWIZSUBCECXWTLKKRVBPAWXN | LAESQRLESAXIUOFNFXWEDTTYRTFRGSUDYACRSIEIUESOFBNIWEWIZSUBCECXWTLKKRVBPAWXN | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0012601 | 13.18.11 12.48.10 14.9.14 20.42.8 8.1.3 16.5.4 7.40.2 15.26.2 13.48.9 10.3.14 10.7.6 4.18.2 6.3.15 19.13.13 19.16.12 12.47.6 5.39.10 13.14.13 9.7.8 11.30.12 18.44.3 4.32.15 1.3.14 7.32.10 17.42.12 6.21.14 2.25.9 17.24.2 10.9.13 11.19.2 1.49.11 14.13.2 7.45.3 1.42.3 8.36.2 7.19.5 19.37.1 6.37.14 10.43.15 18.32.4 9.26.8 ... | 13.18.11 12.48.10 14.9.14 20.42.8 8.1.3 16.5.4 7.40.2 15.26.2 13.48.9 10.3.14 10.7.6 4.18.2 6.3.15 19.13.13 19.16.12 12.47.6 5.39.10 13.14.13 9.7.8 11.30.12 18.44.3 4.32.15 1.3.14 7.32.10 17.42.12 6.21.14 2.25.9 17.24.2 10.9.13 11.19.2 1.49.11 14.13.2 7.45.3 1.42.3 8.36.2 7.19.5 19.37.1 6.37.14 10.43.15 18.32.4 9.26.8 ... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | book_cipher | book_cipher | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
monoalphabetic-v3-0715 | ZIOL FKLWGITEI MOLLCP JGGLW LKI MJOQY QL MOLVI FKLWGITEI WBQALRQ OIVIJGBKE QAI FKLWGITEI BQPIGC | ZIOL FKLWGITEI MOLLCP JGGLW LKI MJOQY QL MOLVI FKLWGITEI WBQALRQ OIVIJGBKE QAI FKLWGITEI BQPIGC | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 82 | 95 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0109 | LOWEEUHEYOYXBRIDHR | LOWEEUHEYOYXBRIDHR | LOWER THE DRAWBRIDGE | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nihilist-015 | 76 68 79 45 40 99 48 67 75 56 50 86 48 46 67 | 76 68 79 45 40 99 48 67 75 56 50 86 48 46 67 | OPERATION BEGINS | nihilist | nihilist | fractionation | {
"polybius": "RUSSIAN",
"keyword": "KEY"
} | advanced | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
diana-v2-0019 | PMANEPYTNODNNNBGBN | PMANEPYTNODNNNBGBN | CONTACT HAS BEEN MADE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
wheatstone-074 | CJJDSJMSTQETQECT | CJJDSJMSTQETQECT | ALL IS LOST RETREAT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
slidex-v3-0084 | SWESWSXVLFANVNGJYSEMHQBUQNALDOAOCEPWANIAXFEXOZWRXHDAOVRRSCMPSCUKOSRAZUTQEO | SWESWSXVLFANVNGJYSEMHQBUQNALDOAOCEPWANIAXFEXOZWRXHDAOVRRSCMPSCUKOSRAZUTQEO | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0017461 | 824 840 809 813 871 999 843 815 999 806 842 824 839 806 824 809 814 841 806 813 999 837 813 800 854 862 851 814 856 999 834 814 857 857 814 852 999 816 853 814 850 862 812 840 806 873 999 811 824 856 858 851 826 804 860 858 824 842 841 999 809 843 860 804 835 814 999 858 853 801 840 855 845 842 854 824 859 825 843 841 ... | 824 840 809 813 871 999 843 815 999 806 842 824 839 806 824 809 814 841 806 813 999 837 813 800 854 862 851 814 856 999 834 814 857 857 814 852 999 816 853 814 850 862 812 840 806 873 999 811 824 856 858 851 826 804 860 858 824 842 841 999 809 843 860 804 835 814 999 858 853 801 840 855 845 842 854 824 859 825 843 841 ... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | culper_ring | culper_ring | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
bazeries-v2-0196 | PJQLYAPAYSTMSYIIJGMYAPYMMBWYPTONAPIJOQWYKHJPTFFTOQCOJWTPXGYSGTAENMYWMJJ | PJQLYAPAYSTMSYIIJGMYAPYMMBWYPTONAPIJOQWYKHJPTFFTOQCOJWTPXGYSGTAENMYWMJJ | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
affine-v3-0881 | ID EOU O XLIQZD GKJP POW IB OTLIJ OBP DZY GJKGAU EYLY UDLIAIBQ DZILDYYB OGLKUU DZY GIDW | ID EOU O XLIQZD GKJP POW IB OTLIJ OBP DZY GJKGAU EYLY UDLIAIBQ DZILDYYB OGLKUU DZY GIDW | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | affine | affine | substitution | {
"a": 9,
"b": 14
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0178 | KJWETGTTIPNGIXEDTIMGMXYJWQPJTBQUPAXTFTYMOOUPZBDQIEYMJENPOLBQGBMCUUXXTNIQ | KJWETGTTIPNGIXEDTIMGMXYJWQPJTBQUPAXTFTYMOOUPZBDQIEYMJENPOLBQGBMCUUXXTNIQ | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
autokey-152 | FIXVVBAXZVICCMCFLLTGCASNLRRTCEZQNRMVYMMSAGGKQ | FIXVVBAXZVICCMCFLLTGCASNLRRTCEZQNRMVYMMSAGGKQ | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
aeneas-tacticus-v3-0044 | 20 8 5 18 1 9 12 23 1 25 1 18 18 9 22 5 19 | 20 8 5 18 1 9 12 23 1 25 1 18 18 9 22 5 19 | THE RAILWAY ARRIVES | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 26 | 42 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0569 | WGDRHSRHAHAHAIEWIICETIDPTKTTNTIRLADCSGESYSTYLCEKRRCACIALRITOIBONNOENEST | WGDRHSRHAHAHAIEWIICETIDPTKTTNTIRLADCSGESYSTYLCEKRRCACIALRITOIBONNOENEST | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
babington-v3-0030 | ⟨w06⟩ ⟨w29⟩ ⟨w25⟩ ⟨w21⟩ ⟨w34⟩ ⟨w29⟩ ⟨w21⟩ ⟨w32⟩ ⟨w04⟩ ⟨a02⟩ ⟨a11⟩ ⟨a13⟩ ⟨w21⟩ ⟨w08⟩ ⟨w25⟩ ⟨n01⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ ⟨w25⟩ ⟨w06⟩ ⟨w08⟩ ⟨a07⟩ ⟨a08⟩ ⟨w21⟩ ⟨w24⟩ ⟨a13⟩ ⟨w21⟩ ⟨w08⟩ ⟨w25⟩ ⟨n01⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ ⟨w32⟩ ⟨w04⟩ ⟨a02⟩ ⟨a11⟩ ⟨w06⟩ ⟨w31⟩ ⟨w29⟩ ⟨w25⟩ ⟨w17⟩ ⟨w21⟩ ⟨w34⟩ ⟨w29⟩ ⟨w21⟩ ⟨w25⟩ ⟨w06⟩ ⟨w23⟩ ⟨w27⟩ ⟨w08⟩ ⟨w25⟩ ⟨w... | ⟨w06⟩ ⟨w29⟩ ⟨w25⟩ ⟨w21⟩ ⟨w34⟩ ⟨w29⟩ ⟨w21⟩ ⟨w32⟩ ⟨w04⟩ ⟨a02⟩ ⟨a11⟩ ⟨a13⟩ ⟨w21⟩ ⟨w08⟩ ⟨w25⟩ ⟨n01⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ ⟨w25⟩ ⟨w06⟩ ⟨w08⟩ ⟨a07⟩ ⟨a08⟩ ⟨w21⟩ ⟨w24⟩ ⟨a13⟩ ⟨w21⟩ ⟨w08⟩ ⟨w25⟩ ⟨n01⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ ⟨w32⟩ ⟨w04⟩ ⟨a02⟩ ⟨a11⟩ ⟨w06⟩ ⟨w31⟩ ⟨w29⟩ ⟨w25⟩ ⟨w17⟩ ⟨w21⟩ ⟨w34⟩ ⟨w29⟩ ⟨w21⟩ ⟨w25⟩ ⟨w06⟩ ⟨w23⟩ ⟨w27⟩ ⟨w08⟩ ⟨w25⟩ ⟨w... | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 370 | 443 | cipher_museum | 2.0 | public | null | null |
cda-0004770 | TIGN EXOZ SROI MZWC QKAH HAEK BRRF RHEY KKBA SRDN AHYE UBJC AORD XUCW FFYO MWMZ PRGQ OIWO YMOF LFTI GDPU NHJN DAMG HTHE OHLY OECK PCTH EPSV VXKW BUOQ UKAV MPXP RHTV VLSS UWMW CZGE QTJF GEMV HIMV IOFH TJTK MWDG QEWU YTSM CJJ | TIGN EXOZ SROI MZWC QKAH HAEK BRRF RHEY KKBA SRDN AHYE UBJC AORD XUCW FFYO MWMZ PRGQ OIWO YMOF LFTI GDPU NHJN DAMG HTHE OHLY OECK PCTH EPSV VXKW BUOQ UKAV MPXP RHTV VLSS UWMW CZGE QTJF GEMV HIMV IOFH TJTK MWDG QEWU YTSM CJJ | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT ATBASH ENCODES BY REVERSING THE ALPHABET PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | trithemius | trithemius | null | {} | hard | en | 179 | 179 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
vic-v2-0234 | 90834828846902186834888581585911899419210924090480795609085104608078506924090918848885898918208559189480608584402569085888581859248881192483910808848009184748889884868848940901082899555675489938588808960800915589608088484610480910788853408185889093852409091881489 | 90834828846902186834888581585911899419210924090480795609085104608078506924090918848885898918208559189480608584402569085888581859248881192483910808848009184748889884868848940901082899555675489938588808960800915589608088484610480910788853408185889093852409091881489 | 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 | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 263 | 263 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0519 | UOYEAIWPDOHMYSSVFXIHQQPXXCUELJVZMZMTSVDIXLGSTCRBSGMIRMRVSPAIOSBJFZFLDIMNMPMOBYEWDUAKUMZEBWGBJADGSLBLBPUABFQTODGRIYKCEZBFXZQBUJCIRJNVZBGHOUKZUUNFPYBEILIRLQJVHIWESIHDROKOULFDLAYWAUXWYO | UOYEAIWPDOHMYSSVFXIHQQPXXCUELJVZMZMTSVDIXLGSTCRBSGMIRMRVSPAIOSBJFZFLDIMNMPMOBYEWDUAKUMZEBWGBJADGSLBLBPUABFQTODGRIYKCEZBFXZQBUJCIRJNVZBGHOUKZUUNFPYBEILIRLQJVHIWESIHDROKOULFDLAYWAUXWYO | 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 | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
babington-v3-0071 | ⟨a13⟩ ⟨w26⟩ ⟨n04⟩ ⟨a05⟩ ⟨n04⟩ ⟨a14⟩ ⟨w20⟩ ⟨x2⟩ ⟨w28⟩ ⟨w16⟩ ⟨a14⟩ ⟨a20⟩ ⟨w12⟩ ⟨w06⟩ ⟨w26⟩ ⟨w13⟩ ⟨w28⟩ ⟨w01⟩ | ⟨a13⟩ ⟨w26⟩ ⟨n04⟩ ⟨a05⟩ ⟨n04⟩ ⟨a14⟩ ⟨w20⟩ ⟨x2⟩ ⟨w28⟩ ⟨w16⟩ ⟨a14⟩ ⟨a20⟩ ⟨w12⟩ ⟨w06⟩ ⟨w26⟩ ⟨w13⟩ ⟨w28⟩ ⟨w01⟩ | THE ORACLE HAS SPOKEN | babington | babington | nomenclator | {
"type": "seed",
"value": "SCOTLAND"
} | expert | en | 89 | 106 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0430 | KNENARF KAREM JRX MRGNE DYPGXQOAK MJN KANRM AYDNA YX EUZ UCNE LAUT YMX XUOAPN MU MJN XNR | KNENARF KAREM JRX MRGNE DYPGXQOAK MJN KANRM AYDNA YX EUZ UCNE LAUT YMX XUOAPN MU MJN XNR | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 72 | 88 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0570 | PLDEOBHAOKQYKNNIDNRLUTUFQKQLGUZUQLIDRKHOFEBDBFLUQBEWAQXFREFGPLBERBTUDELGFGABLOUFTUKFED | PLDEOBHAOKQYKNNIDNRLUTUFQKQLGUZUQLIDRKHOFEBDBFLUQBEWAQXFREFGPLBERBTUDELGFGABLOUFTUKFED | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0009436 | RXCERYMHCXKKXLEEXANXEHEUYNTFSXLEOXSTWXSXWOLCSUEAOXFLIYBAPLRR | RXCERYMHCXKKXLEEXANXEHEUYNTFSXLEOXSTWXSXWOLCSUEAOXFLIYBAPLRR | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL CAREFULLY | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "PALACE"
} | medium | en | 60 | 60 | synthetic_educational | null | null | [] | |
alberti-disk-v3-0394 | GMOIBSYYCQGOMNTOJZBNSUDQEXKJFNCOJXLFGQKCBGZDNEHVZTAWXYXUUGSTITDWZEQEHWKEDWQDWWAWPDGLV | GMOIBSYYCQGOMNTOJZBNSUDQEXKJFNCOJXLFGQKCBGZDNEHVZTAWXYXUUGSTITDWZEQEHWKEDWQDWWAWPDGLV | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0346 | DOWXOXSAGLXMTSBHYMODBVLXFSXGPQZFHKNITALLPQCLBGREMOGZELFBHKOISWBMSLFAORLVUIEEPVZUGBEW | DOWXOXSAGLXMTSBHYMODBVLXFSXGPQZFHKNITALLPQCLBGREMOGZELFBHKOISWBMSLFAORLVUIEEPVZUGBEW | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
red-type-a-111 | ZDEVRISVEIDPYFAFIXNOLTAJFYGUILYJSNILEEMYGYHQETAISYCOBIXCDYFR | ZDEVRISVEIDPYFAFIXNOLTAJFYGUILYJSNILEEMYGYHQETAISYCOBIXCDYFR | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
diana-v2-0525 | VEQIKHONNTZ | VEQIKHONNTZ | KNOW THYSELF | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
typex-v2-0436 | KNECUYOGQJIJDGETOPNKWMDLFSYAZUZGTKVJDSBQZBEVXKGKNTHHAIQAXTNZPMZTQBWY | KNECUYOGQJIJDGETOPNKWMDLFSYAZUZGTKVJDSBQZBEVXKGKNTHHAIQAXTNZPMZTQBWY | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-012 | AAABA ABAAA ABBBA AABBB AABAA BAAAA ABAAB AABAA BABBB AAABA AABBB AAAAA ABBAA AABBA AABAA AAABB | AAABA ABAAA ABBBA AABBB AABAA BAAAA ABAAB AABAA BABBB AAABA AABBB AAAAA ABBAA AABBA AABAA AAABB | CIPHER KEY CHANGED | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 80 | 95 | cipher_museum | 0.2 | public | null | null |
caesar-it-001 | QHO PHCCR GHO FDPPLQ GL QRVWUD YLWD PL ULWURYDL SHU XQD VHOYD RVFXUD | QHO PHCCR GHO FDPPLQ GL QRVWUD YLWD PL ULWURYDL SHU XQD VHOYD RVFXUD | NEL MEZZO DEL CAMMIN DI NOSTRA VITA MI RITROVAI PER UNA SELVA OSCURA | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | it | 56 | 68 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-0600 | QAR ZCHHROHLJJ QRGRYOLH VLP ERBKERE IX OKKH TKOQX CJ GKJEKJ LJE IOKSYAQ LHROCBL CJQK QAR YORLQ VLO | QAR ZCHHROHLJJ QRGRYOLH VLP ERBKERE IX OKKH TKOQX CJ GKJEKJ LJE IOKSYAQ LHROCBL CJQK QAR YORLQ VLO | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | beginner | en | 82 | 98 | cipher_museum | 2.0 | public | null | null |
affine-163 | GAF LNHRV KSXBQ MXI ONJEZ XUFS GAF CDWP YXT QFDS GAF SHUFS | GAF LNHRV KSXBQ MXI ONJEZ XUFS GAF CDWP YXT QFDS GAF SHUFS | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | affine | affine | substitution | {
"a": 7,
"b": 3
} | beginner | en | 47 | 58 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0286 | UVCBZVYKVZLJSVYBT | UVCBZVYKVZLJSVYBT | NOVUS ORDO SECLORUM | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "77777"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0047 | 99999 90022 90004 99998 00015 99999 90018 90020 90002 90007 99998 99999 90018 90019 90020 90005 90005 99998 00011 99999 90003 90017 90004 90000 90012 90018 99998 00015 99999 90012 90000 90003 90004 99998 00013 00002 00083 99999 90011 90008 90019 90019 90011 90004 99998 99999 90011 90008 90005 90004 99998 00006 99999 90... | 99999 90022 90004 99998 00015 99999 90018 90020 90002 90007 99998 99999 90018 90019 90020 90005 90005 99998 00011 99999 90003 90017 90004 90000 90012 90018 99998 00015 99999 90012 90000 90003 90004 99998 00013 00002 00083 99999 90011 90008 90019 90019 90011 90004 99998 99999 90011 90008 90005 90004 99998 00006 99999 90... | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 350 | 419 | cipher_museum | 2.0 | public | null | null |
cda-0004435 | HYTHG PGYGP WQMPF NIBHZ OFIOM NVIGG IBGWO XPSSI BIQGV IGGIB DIBMD NWSSH FBPQM PFVIH OEHGN IHEHG IZZYH GTIHI MYBII UIQPS IQIZE DQWRH OVKWB PGNZM WVYZQ OBGBO QHFWH PGPWQ BIOXH MWVYZ QHPQD IEWBX IB | HYTHG PGYGP WQMPF NIBHZ OFIOM NVIGG IBGWO XPSSI BIQGV IGGIB DIBMD NWSSH FBPQM PFVIH OEHGN IHEHG IZZYH GTIHI MYBII UIQPS IQIZE DQWRH OVKWB PGNZM WVYZQ OBGBO QHFWH PGPWQ BIOXH MWVYZ QHPQD IEWBX IB | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | monoalphabetic | monoalphabetic | null | {
"alphabet": "OTMXISKNPADVZQWFLBHGYURCEJ"
} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
cda-0011919 | FRTLT DPFMS LBVVW WVRVF VATBY TQTEQ MJXRV EXXKF LTGLZ HHCXJ ALVRW ZYAES UXSJL KCDRR VQFZK PFUEX VNFRM WOXJO POKYU MKUCQ WKNRM AHRIF LROSG RBSUG ADNVR GKHDM XWHGO CHKBB YMKLR MNLMV VNJ | FRTLT DPFMS LBVVW WVRVF VATBY TQTEQ MJXRV EXXKF LTGLZ HHCXJ ALVRW ZYAES UXSJL KCDRR VQFZK PFUEX VNFRM WOXJO POKYU MKUCQ WKNRM AHRIF LROSG RBSUG ADNVR GKHDM XWHGO CHKBB YMKLR MNLMV VNJ | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF ATBASH ENCODES BY REVERSING THE ALPHABET FAIL CLOSED IS A POSTURE NOT A SLOGAN A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | running_key | running_key | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
nomenclator-v2-0022 | 04 09 22 09 04 05 61 03 15 14 17 21 05 18 | 04 09 22 09 04 05 61 03 15 14 17 21 05 18 | DIVIDE AND CONQUER | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0098 | FHSNOEGCFVPTYNHPEHEARAMEHEEEEHLUKTEORTHTSOTAVYCECELANARDYLAANTOINSRAOAHIKOTWIDODLUESLNGUIKEWNODLHDATNFTTAIUNOGTRHHPOONEAUYATINXLONEPLNEGTEOTDHHWTTIYHUAOIXDLOSDMLX | FHSNOEGCFVPTYNHPEHEARAMEHEEEEHLUKTEORTHTSOTAVYCECELANARDYLAANTOINSRAOAHIKOTWIDODLUESLNGUIKEWNODLHDATNFTTAIUNOGTRHHPOONEAUYATINXLONEPLNEGTEOTDHHWTTIYHUAOIXDLOSDMLX | FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0026 | gqdoxzqd azqkde cdqd | gqdoxzqd azqkde cdqd | TREASURE BURIED HERE | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
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