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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
playfair-v3-0433 | BOKOAIHTCQUDHNDOPLDSIKEOIACVKHCRIAKHBUXRFSBGEFXEPEAILGDRDNNDRQUNPLBKEDBIGZSY | BOKOAIHTCQUDHNDOPLDSIKEOIACVKHCRIAKHBUXRFSBGEFXEPEAILGDRDNNDRQUNPLBKEDBIGZSY | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0006475 | FRPHEVGL PYNVZF FUBHYQ OR GRFGRQ HAQRE FPEHGVAL EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA TBBQ RQHPNGVBANY GBBYF RKCYNVA GURVE YVZVGF NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR ARIRE | FRPHEVGL PYNVZF FUBHYQ OR GRFGRQ HAQRE FPEHGVAL EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA TBBQ RQHPNGVBANY GBBYF RKCYNVA GURVE YVZVGF NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR ARIRE | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE NEVER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cardano-autokey-162 | UTPNIHUXRPWFGALALTGRCVBKGSTXWGWLZVTIQAYGHVKCTBWBFXWFAMDYZVJSRZMW | UTPNIHUXRPWFGALALTGRCVBKGSTXWGWLZVTIQAYGHVKCTBWBFXWFAMDYZVJSRZMW | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 64 | 64 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0357 | SMTRSEOAFMSPNOAWRETR | SMTRSEOAFMSPNOAWRETR | STEAM POWER TRANSFORMS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0233 | XFXFAGGDFDFAGGDAGDAXADFDXFFFFDFDFDXXAXDDAADG | XFXFAGGDFDFAGGDAGDAXADFDXFFFFDFDFDXXAXDDAADG | MESSAGE RECEIVED CLEARLY | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 44 | 44 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0415 | JWPCMEPENEOARALTUHEAGIHDENSASDBHYNLRHIOULRGECAEFHRLRRIMSERSEAKESSDBYTICITIEDSIOSIEMCEABERCITONREERNKPOEMLCREHNDVINCIAINTCPRNBAFTLGLETSCNDHIWRNIAATNEPAANRESCNOALWPEHAAOEEOTLEIMEGDEWIL | JWPCMEPENEOARALTUHEAGIHDENSASDBHYNLRHIOULRGECAEFHRLRRIMSERSEAKESSDBYTICITIEDSIOSIEMCEABERCITONREERNKPOEMLCREHNDVINCIAINTCPRNBAFTLGLETSCNDHIWRNIAATNEPAANRESCNOALWPEHAAOEEOTLEIMEGDEWIL | 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 | double_transposition | double_transposition | transposition | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0017469 | 0673 1608 0374 06626 1962 04805 5741 06332 02830 05981 06330 02604 01592 5665 1637 0995 2906 05087 5652 04790 00959 0368 03784 04730 1903 06938 02826 2249 1625 04448 01597 5691 01580 00355 04467 1355 01325 01579 0948 05716 07940 05106 06327 06047 2889 06319 06063 01581 3796 01924 1932 0382 02850 3826 1013 3792 4800 059... | 0673 1608 0374 06626 1962 04805 5741 06332 02830 05981 06330 02604 01592 5665 1637 0995 2906 05087 5652 04790 00959 0368 03784 04730 1903 06938 02826 2249 1625 04448 01597 5691 01580 00355 04467 1355 01325 01579 0948 05716 07940 05106 06327 06047 2889 06319 06063 01581 3796 01924 1932 0382 02850 3826 1013 3792 4800 059... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF FAIL CLOSED IS A POSTURE NOT A SLOGAN A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | zimmermann | zimmermann | null | {} | hard | en | 118 | 118 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0021903 | ILFG VXRK SVIH IVZW ZTIR WRMZ KIVH XIRY VWTV LNVG IRXK ZGGV IMKL OBYR FHVM XLWV WOVG GVIH ZHKZ RIHL UMFN YVIH UILN LMVG LURE VTLL WVWF XZGR LMZO GLLO HVCK OZRM GSVR IORN RGH | ILFG VXRK SVIH IVZW ZTIR WRMZ KIVH XIRY VWTV LNVG IRXK ZGGV IMKL OBYR FHVM XLWV WOVG GVIH ZHKZ RIHL UMFN YVIH UILN LMVG LURE VTLL WVWF XZGR LMZO GLLO HVCK OZRM GSVR IORN RGH | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | atbash | atbash | null | {} | hard | en | 139 | 139 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
solitaire-v3-0037 | LBKLVDBKYEGQOSCMPMX | LBKLVDBKYEGQOSCMPMX | THE TELESCOPE REVEALS | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0008156 | QJHLVMOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJURHRTRQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCQNFNUFEGDOVLWOAFHZWSQZRBXYWIYVAHFEERSATWBELLUAXJECUBTHGYOACMQKAYLESFYIVLCOUKBXPE | QJHLVMOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJURHRTRQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCQNFNUFEGDOVLWOAFHZWSQZRBXYWIYVAHFEERSATWBELLUAXJECUBTHGYOACMQKAYLESFYIVLCOUKBXPE | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY ATBASH ENCODES BY REVERSING THE ALPHABET CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | autokey | autokey | null | {
"primer": "CIPHER"
} | hard | en | 163 | 163 | synthetic_educational | null | null | [] | |
kl7-v2-0080 | SZYODRFLPJLBFCQFUGFFHQANLHCAUMPYAPYLDKIKUBFLQCGKPSFJYNNQTSJJEQETUYQQSSBHJSTSDZ | SZYODRFLPJLBFCQFUGFFHQANLHCAUMPYAPYLDKIKUBFLQCGKPSFJYNNQTSJJEQETUYQQSSBHJSTSDZ | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0212 | THEZIMMERMANNTELEGRAMWAQDECODEDBYROOMFORTYINLONDONANDBTOUGHTAMERICAINTOTHEGREATWAR | THEZIMMERMANNTELEGRAMWAQDECODEDBYROOMFORTYINLONDONANDBTOUGHTAMERICAINTOTHEGREATWAR | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
hill-v3-0153 | RFGSMKUZESMDEAYXPGUQNAMBNLNNSVLYJZGUUAICJSPZLCCODCOXDNTWHVOSBEIQOXIARFVV | RFGSMKUZESMDEAYXPGUQNAMBNLNNSVLYJZGUUAICJSPZLCCODCOXDNTWHVOSBEIQOXIARFVV | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0190 | ROEG+KDEHOCMFIWDEJUEDMITTTOJTJRINPERPNEOBODFOEPHCDBXDSFCFDIXAMOTHJTGYEKQMJJ | ROEG+KDEHOCMFIWDEJUEDMITTTOJTJRINPERPNEOBODFOEPHCDBXDSFCFDIXAMOTHJTGYEKQMJJ | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0014488 | shedy ytedy okain raiin chol chol qokeedy cheol okshy dainy ykcheol qotedy daiin shal okedy choldaiin chol | shedy ytedy okain raiin chol chol qokeedy cheol okshy dainy ykcheol qotedy daiin shal okedy choldaiin chol | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | voynich_render | voynich_render | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
rail-fence-es-007 | LLBRANSMNIAEOQITAIETDOEEDGSCNUSA | LLBRANSMNIAEOQITAIETDOEEDGSCNUSA | LA LIBERTAD NO SE MENDIGA SE CONQUISTA | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | es | 32 | 32 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v3-0225 | 42522278624212229162132322128476 | 42522278624212229162132322128476 | THE KING DEMANDS FEALTY | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
cda-0013416 | .. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ... . ..... ... ... .... .... .... .. ... .... ... ..... ....... | .. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ... . ..... ... ... .... .... .... .. ... .... ... ..... ....... | FAIL CLOSED IS A POSTURE NOT A SLOGAN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | tap_code | tap_code | null | {} | medium | en | 71 | 71 | 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. |
cda-0007142 | EWGUC XEZBN WYQRR HQEZH HZOQR GRFCW QTJLT JXLRS WCUTA IBZNX NOLJG VEQOU MJBQG AQIYF FMIZW ZFKEU VHVHR HABSN MYQXF YWKMO AXAGW IAPSI KYVBO NGEWI ODSMN ZNPNZ TUGUR BUYLB RPXCP GURCF IIKXJ OHBDH XNIZC KCEUG IIYFF | EWGUC XEZBN WYQRR HQEZH HZOQR GRFCW QTJLT JXLRS WCUTA IBZNX NOLJG VEQOU MJBQG AQIYF FMIZW ZFKEU VHVHR HABSN MYQXF YWKMO AXAGW IAPSI KYVBO NGEWI ODSMN ZNPNZ TUGUR BUYLB RPXCP GURCF IIKXJ OHBDH XNIZC KCEUG IIYFF | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | trithemius | trithemius | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [] | |
trifid-v2-0141 | FRNJKAWOHLEOCNLW | FRNJKAWOHLEOCNLW | ABORT AND WITHDRAW | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0281 | 58 63 75 39 11 44 46 28 41 77 71 38 49 33 86 39 21 42 29 27 25 | 58 63 75 39 11 44 46 28 41 77 71 38 49 33 86 39 21 42 29 27 25 | PATIENCE BRINGS VICTORY | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0322 | MBLZIBITZFXHMMSDIYMACRDKJSLXJWSECYVOPJUVUDOWQCCQGYHGHPLVRAEKNCOVNBSZTTI | MBLZIBITZFXHMMSDIYMACRDKJSLXJWSECYVOPJUVUDOWQCCQGYHGHPLVRAEKNCOVNBSZTTI | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0013933 | BAAAB AABAA AAABA BAABB BAAAA ABAAA BAABA BABBA AAABA ABABA AAAAA ABAAA ABABB BAAAB BAAAB AABBB ABBAB BAABB ABABA AAABB AAAAB AABAA BAABA AABAA BAAAB BAABA AABAA AAABB BAABB ABBAA AAABB AABAA BAAAA BAAAB AAABA BAAAA BAABB BAABA ABAAA ABBAA BABBA AABAA ABBAA BAABA BAAAA ABBAB ABBBA BABBA ABABB AABAA AAAAA BAAAB BAABB BA... | BAAAB AABAA AAABA BAABB BAAAA ABAAA BAABA BABBA AAABA ABABA AAAAA ABAAA ABABB BAAAB BAAAB AABBB ABBAB BAABB ABABA AAABB AAAAB AABAA BAABA AABAA BAAAB BAABA AABAA AAABB BAABB ABBAA AAABB AABAA BAAAA BAAAB AAABA BAAAA BAABB BAABA ABAAA ABBAA BABBA AABAA ABBAA BAABA BAAAA ABBAB ABBBA BABBA ABABB AABAA AAAAA BAAAB BAABB BA... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | bacon_cipher | bacon_cipher | null | {} | hard | en | 635 | 635 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0013001 | 19.18.4 16.15.13 11.47.4 1.3.7 6.3.1 2.44.1 10.32.10 13.41.10 5.2.6 17.20.4 20.4.3 8.7.6 4.37.10 10.2.11 14.10.1 15.16.3 6.8.11 8.30.9 11.2.8 19.50.15 12.6.5 19.18.4 4.7.4 11.28.8 14.37.3 5.32.10 4.41.7 5.28.14 18.39.7 6.44.15 10.11.14 11.15.5 13.36.6 17.5.13 2.6.13 14.37.11 12.3.1 18.6.12 2.47.6 17.42.10 5.44.11 12.30... | 19.18.4 16.15.13 11.47.4 1.3.7 6.3.1 2.44.1 10.32.10 13.41.10 5.2.6 17.20.4 20.4.3 8.7.6 4.37.10 10.2.11 14.10.1 15.16.3 6.8.11 8.30.9 11.2.8 19.50.15 12.6.5 19.18.4 4.7.4 11.28.8 14.37.3 5.32.10 4.41.7 5.28.14 18.39.7 6.44.15 10.11.14 11.15.5 13.36.6 17.5.13 2.6.13 14.37.11 12.3.1 18.6.12 2.47.6 17.42.10 5.44.11 12.30... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE INDEX OF COINCIDENCE IS A USEFUL CLUE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN FAIL CLOSED IS A POSTURE NOT A SLOGAN SLOWLY | book_cipher | book_cipher | null | {} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0015384 | AAAAA ABBAA AAAAA AABAB AABAB ABAAA ABBAA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AAAAA ABBBA ABBBA ABABA ABAAA AABAA BAAAB AAAAA ABABA ABAAA ABBAA AABAA AAAAA BAAAA AABAB BAABB ABBAA AAABA BAABA ABAAA ABBAB ABBAA BAABA ABBAB AABAA AAAAA AAABA AABBB ABABA AABAA BAABA BAABA AABAA BAAAA AABAB BAAAA AABAA ABBBB BAABB AA... | AAAAA ABBAA AAAAA AABAB AABAB ABAAA ABBAA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AAAAA ABBBA ABBBA ABABA ABAAA AABAA BAAAB AAAAA ABABA ABAAA ABBAA AABAA AAAAA BAAAA AABAB BAABB ABBAA AAABA BAABA ABAAA ABBAB ABBAA BAABA ABBAB AABAA AAAAA AAABA AABBB ABABA AABAA BAABA BAABA AABAA BAAAA AABAB BAAAA AABAA ABBBB BAABB AA... | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE INDEX OF COINCIDENCE IS A USEFUL CLUE | bacon_cipher | bacon_cipher | null | {} | hard | en | 595 | 595 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
columnar-transposition-v2-0401 | OSIENLKOSPSISISLPH | OSIENLKOSPSISISLPH | LOOSE LIPS SINK SHIPS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0008 | QHRORITQRGRLNRRO | QHRORITQRGRLNRRO | THE SENATE DECREES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0256 | NGOKRYXIOASQXW | NGOKRYXIOASQXW | STORM THE BREACH | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0553 | VHZQFRJKTTOQDCTCTIDEMVSORLZLGDDTOIMRPZTSRQVHZGPERNEMATEDTOHHPRTGNVBZMC | VHZQFRJKTTOQDCTCTIDEMVSORLZLGDDTOIMRPZTSRQVHZGPERNEMATEDTOHHPRTGNVBZMC | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
rot13-v2-0072 | VG VF ORGGRE GB ERZNVA FVYRAG NAQ OR GUBHTUG N SBBY GUNA GB FCRNX NAQ ERZBIR NYY QBHOG | VG VF ORGGRE GB ERZNVA FVYRAG NAQ OR GUBHTUG N SBBY GUNA GB FCRNX NAQ ERZBIR NYY QBHOG | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0010556 | CNSE ESIVSJ OAQ ESCEBQHQVPWYVGL ZOGGSE VA ENFROEPU GEOAFCBFVGVBA QVCUNEF ESOEEOAUR YSGGSEF JVGVBHG FHPFGNGHGVBA | CNSE ESIVSJ OAQ ESCEBQHQVPWYVGL ZOGGSE VA ENFROEPU GEOAFCBFVGVBA QVCUNEF ESOEEOAUR YSGGSEF JVGVBHG FHPFGNGHGVBA | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 99 | 99 | synthetic_educational | null | null | [] | |
cda-0008553 | ULDCTQVF DTCQOZ TPQCNK CM VMUAFL WVFLS AEZWAJVA IVIBAJ MPJPLGA DF SMXMTZJVI BJL BTRPCIFB | ULDCTQVF DTCQOZ TPQCNK CM VMUAFL WVFLS AEZWAJVA IVIBAJ MPJPLGA DF SMXMTZJVI BJL BTRPCIFB | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ATBASH ENCODES BY REVERSING THE ALPHABET | gronsfeld | gronsfeld | null | {
"key": "271828"
} | medium | en | 76 | 76 | synthetic_educational | null | null | [] | |
cda-0004253 | TPHP EAOE SYEU EDRE SRLN RCAU BLLE HHEE KAFL LSRE CTYA ATNS HEWY ODEH IERA UEYN UOSN PAAI YHMO OSNN RTIH UMTW XTOT IEAT ONOD DKTN DEEE ICSG GWPN XTEK ENHT RUAS RPAN MSLX TNGR AATL TEIT DYCS HTAS LEPT EEET XXHE VFIH PRHD SETI | TPHP EAOE SYEU EDRE SRLN RCAU BLLE HHEE KAFL LSRE CTYA ATNS HEWY ODEH IERA UEYN UOSN PAAI YHMO OSNN RTIH UMTW XTOT IEAT ONOD DKTN DEEE ICSG GWPN XTEK ENHT RUAS RPAN MSLX TNGR AATL TEIT DYCS HTAS LEPT EEET XXHE VFIH PRHD SETI | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | stager_route | stager_route | null | {
"cols": 12
} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
geheimschreiber-v3-0271 | OIHTKYXAEEPEWCJSUQHRFBKCDGAEIREEEWHSZAPGBCNSDVBPGKERMGLZZCOSFPFROCLANFDVKKZDG | OIHTKYXAEEPEWCJSUQHRFBKCDGAEIREEEWHSZAPGBCNSDVBPGKERMGLZZCOSFPFROCLANFDVKKZDG | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0254 | NLCESLRPXFDEMPOPDECZJPO | NLCESLRPXFDEMPOPDECZJPO | CARTHAGE MUST BE DESTROYED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-063 | XXRNJCMZKKGBFNXJN | XXRNJCMZKKGBFNXJN | THE EAGLE HAS LANDED | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
cda-0007321 | FHPF GWGH GWBA QVCU SEFZ OCRO QUYS GGSE GBOR VTTR ESAG YSGG SEGV SEOV YSSA NSQN CVSE JENG SFGS KGVA OMWU MNUC OGGS EAWA RSKB TQBW AQVR SAQS ZROF HESF YSGG SETE SDHS AQLR WFGE NOHG VBAP EHGR TBEP SJBE XFBA YLJN SAGV RXSL FCON SVFF ZOYY | FHPF GWGH GWBA QVCU SEFZ OCRO QUYS GGSE GBOR VTTR ESAG YSGG SEGV SEOV YSSA NSQN CVSE JENG SFGS KGVA OMWU MNUC OGGS EAWA RSKB TQBW AQVR SAQS ZROF HESF YSGG SETE SDHS AQLR WFGE NOHG VBAP EHGR TBEP SJBE XFBA YLJN SAGV RXSL FCON SVFF ZOYY | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 188 | 188 | synthetic_educational | null | null | [] | |
cda-0018208 | 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54 | 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54 | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | polybius | polybius | null | {} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
vigenere-v2-0015 | PBZRVECDHIVLSRLW | PBZRVECDHIVLSRLW | ABORT AND WITHDRAW | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0573 | RQPLABNKBDUDRIEOUGKORQPLMLIALQVDFECIIYLQPMQAGHBXQKLUKFAQMNQCUBFOANXFTPTUEUBEDSKFAQMNYTDSPTTUAQXFGUUDRHHKPKPLRXFEIXRBEDKHUDAKLOPQPLOKCQNRKUZRZUET | RQPLABNKBDUDRIEOUGKORQPLMLIALQVDFECIIYLQPMQAGHBXQKLUKFAQMNQCUBFOANXFTPTUEUBEDSKFAQMNYTDSPTTUAQXFGUUDRHHKPKPLRXFEIXRBEDKHUDAKLOPQPLOKCQNRKUZRZUET | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 144 | 144 | cipher_museum | 2.0 | public | null | null |
cda-0018377 | 3.21.8 15.11.4 14.36.15 6.27.2 6.17.12 16.33.1 15.36.15 10.33.13 4.25.7 16.26.12 13.41.13 2.3.13 14.14.7 13.24.5 18.24.7 17.13.12 2.22.10 5.39.12 9.10.13 2.34.4 2.15.9 9.7.6 19.24.2 12.24.9 12.23.1 14.42.7 13.42.7 3.33.6 7.27.15 4.42.13 7.10.13 10.31.6 15.39.9 3.41.12 8.14.13 11.33.6 14.44.8 20.19.10 20.31.1 12.18.3 11... | 3.21.8 15.11.4 14.36.15 6.27.2 6.17.12 16.33.1 15.36.15 10.33.13 4.25.7 16.26.12 13.41.13 2.3.13 14.14.7 13.24.5 18.24.7 17.13.12 2.22.10 5.39.12 9.10.13 2.34.4 2.15.9 9.7.6 19.24.2 12.24.9 12.23.1 14.42.7 13.42.7 3.33.6 7.27.15 4.42.13 7.10.13 10.31.6 15.39.9 3.41.12 8.14.13 11.33.6 14.44.8 20.19.10 20.31.1 12.18.3 11... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION NEVER | book_cipher | book_cipher | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cardano-autokey-v3-0381 | YDRNEVBPTWVMZHWAHTLHTGKMWWZJZGZXAYFIANUNTNLRLDWPPGVBWBBJZVMVSLLHPNFGTLKSZZUOKVBUQ | YDRNEVBPTWVMZHWAHTLHTGKMWWZJZGZXAYFIANUNTNLRLDWPPGVBWBBJZVMVSLLHPNFGTLKSZZUOKVBUQ | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0008678 | HSOUS ANTER UEIQU RINSN SHEPN AECRG EBSNT REEWI SONUN RSIRC RUEHY TEECA RTOPN IPCAA LAUUS SSRYY ELTBR OESAC DIKTT RONEN AITAN IMPNI EVITL TTEOT TIFRR SAWIA TYI | HSOUS ANTER UEIQU RINSN SHEPN AECRG EBSNT REEWI SONUN RSIRC RUEHY TEECA RTOPN IPCAA LAUUS SSRYY ELTBR OESAC DIKTT RONEN AITAN IMPNI EVITL TTEOT TIFRR SAWIA TYI | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "FREEDOM"
} | hard | en | 133 | 133 | synthetic_educational | null | null | [] | |
confederate-vigenere-v3-0208 | KPGCQBBQRXTVVSPWNPKJTFNQWZQTZWAHKMGURCEWPBJYQSGREQPLFSRQVQIOFMQHTZAWFSQWYWWZMBQVFNUVHWRWZVVLXZVJVVELYSFVROGZDSIHRTKUSHUHZLGUFWGLVAQMZIZHIWWZMURQKAYOAVNGGMPLFFNWVLVOQIFJFDGYZARQK | KPGCQBBQRXTVVSPWNPKJTFNQWZQTZWAHKMGURCEWPBJYQSGREQPLFSRQVQIOFMQHTZAWFSQWYWWZMBQVFNUVHWRWZVVLXZVJVVELYSFVROGZDSIHRTKUSHUHZLGUFWGLVAQMZIZHIWWZMURQKAYOAVNGGMPLFFNWVLVOQIFJFDGYZARQK | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
m209-v3-0108 | KWAUYWUQQILJDOCKYDBE | KWAUYWUQQILJDOCKYDBE | THE LEGIONS STAND READY | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0006652 | TFPOELSRHSTHIHMSYSETPIEDEBABQWROOBCRIPIUIASNIICNOUATNIX | TFPOELSRHSTHIHMSYSETPIEDEBABQWROOBCRIPIUIASNIICNOUATNIX | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | scytale | scytale | null | {
"cols": 5
} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
fialka-v3-0235 | OISEUICCJPOXCALFKINH | OISEUICCJPOXCALFKINH | THE COMPASS POINTS TRUE | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0011177 | EPOOE OAEEU OLBLC OIRSI KTNHI ARETI TTEEL CTSTS EDGUT HTEIC CUASI RADEX SNATF TILEM SMETR FXTTX HPPET OSAOE RRIAU RDDHU EURCH SSAAM LRAFN SEHNL | EPOOE OAEEU OLBLC OIRSI KTNHI ARETI TTEEL CTSTS EDGUT HTEIC CUASI RADEX SNATF TILEM SMETR FXTTX HPPET OSAOE RRIAU RDDHU EURCH SSAAM LRAFN SEHNL | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER FAIL CLOSED IS A POSTURE NOT A SLOGAN | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "PALACE"
} | hard | en | 120 | 120 | synthetic_educational | null | null | [] | |
adfgx-067 | GAXDAFGFGDXFXAFDDAXAFFDAAF | GAXDAFGFGDXFXAFDDAXAFFDAAF | CHANGE OF PLANS | adfgx | adfgx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 26 | 26 | cipher_museum | 0.2 | public | null | null |
caesar-v3-1423 | KBTQLK PXT QEB XMMIB CXII XKA FKQRFQBA QEB PXJB CLOZB QEXQ ELIAP QEB MIXKBQP FK QEBFO MXQEP | KBTQLK PXT QEB XMMIB CXII XKA FKQRFQBA QEB PXJB CLOZB QEXQ ELIAP QEB MIXKBQP FK QEBFO MXQEP | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 75 | 91 | cipher_museum | 2.0 | public | null | null |
cda-0021040 | 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 11 43 44... | 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 11 43 44... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH A STRONG CLAIM NEEDS STRONG EVIDENCE | polybius | polybius | null | {} | hard | en | 135 | 135 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0012808 | ... ..... . ..... . ..... .... .. .... .. . ..... ..... . .. .... . ..... ..... .. . . ... ... . .... .... .. . ..... ... ..... .... .. ... .... . .... .... ..... . ... .. .... . .. .. .... ... . .. .... .... .... ..... .... ... .. . . .... .... .... .... . ..... .... .. .. .... ... .... | ... ..... . ..... . ..... .... .. .... .. . ..... ..... . .. .... . ..... ..... .. . . ... ... . .... .... .. . ..... ... ..... .... .. ... .... . .... .... ..... . ... .. .... . .. .. .... ... . .. .... .... .... ..... .... ... .. . . .... .... .... .... . ..... .... .. .. .... ... .... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | tap_code | tap_code | null | {} | medium | en | 44 | 44 | 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. |
lorenz-v2-0146 | HONORABOVEALL | HONORABOVEALL | HONOR ABOVE ALL | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0204 | F7 B6 R3 B6 C7 Z3 O4 O3 U2 F6 H1 L2 S8 U4 L7 N7 U2 N7 T4 F1 W1 O9 B4 G4 L5 Q4 E0 H4 D8 L7 B7 D6 U3 M2 N2 G4 N7 N8 K4 I7 N2 K4 O4 E8 S0 A2 M7 G0 H4 R0 R0 P0 N8 V8 O0 K7 L1 W1 S7 D5 I1 H4 P3 I1 D6 Z4 N4 K8 O0 L2 A2 M2 U2 P2 G6 U3 F1 | F7 B6 R3 B6 C7 Z3 O4 O3 U2 F6 H1 L2 S8 U4 L7 N7 U2 N7 T4 F1 W1 O9 B4 G4 L5 Q4 E0 H4 D8 L7 B7 D6 U3 M2 N2 G4 N7 N8 K4 I7 N2 K4 O4 E8 S0 A2 M7 G0 H4 R0 R0 P0 N8 V8 O0 K7 L1 W1 S7 D5 I1 H4 P3 I1 D6 Z4 N4 K8 O0 L2 A2 M2 U2 P2 G6 U3 F1 | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 154 | 230 | cipher_museum | 2.0 | public | null | null |
nihilist-090 | 46 89 95 37 88 78 48 60 66 30 88 78 75 70 87 27 79 49 77 57 87 67 67 77 78 59 58 67 86 55 77 89 84 40 89 46 68 60 86 | 46 89 95 37 88 78 48 60 66 30 88 78 75 70 87 27 79 49 77 57 87 67 67 77 78 59 58 67 86 55 77 89 84 40 89 46 68 60 86 | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | nihilist | nihilist | fractionation | {
"polybius": "CIPHER",
"keyword": "MUSEUM"
} | advanced | en | 78 | 116 | cipher_museum | 0.2 | public | null | null |
m209-041 | EMSRSKHWDLFRKNBNIRKMGDCQAQBPMGOJCJLIXDJFRICDRCR | EMSRSKHWDLFRKNBNIRKMGDCQAQBPMGOJCJLIXDJFRICDRCR | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | m209 | m209 | machine | {
"type": "seed",
"value": "HAGELIN"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-vf-0121 | VBPSQKFUFO XF YK YK CS BFPOSCGX PQ SK SBF GKOY PJY JKS TJSK HFJ IKO BCQ RGKOX CQ ROFPS | VBPSQKFUFO XF YK YK CS BFPOSCGX PQ SK SBF GKOY PJY JKS TJSK HFJ IKO BCQ RGKOX CQ ROFPS | WHATSOEVER YE DO DO IT HEARTILY AS TO THE LORD AND NOT UNTO MEN FOR HIS GLORY IS GREAT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "PLAYFAIR"
} | beginner | en | 68 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0020765 | 0974 00380 1653 6023 00314 5712 5999 2588 2844 01944 06316 1654 01344 06281 02551 01654 00400 03854 5040 02577 0408 00685 01639 06372 00719 7909 6302 02590 5733 1625 01585 5101 04775 05983 2908 6361 2910 04784 04436 06060 0333 6346 5721 00314 4477 6010 05115 0350 05668 1620 04453 6329 6304 04720 04802 03859 06040 2610 ... | 0974 00380 1653 6023 00314 5712 5999 2588 2844 01944 06316 1654 01344 06281 02551 01654 00400 03854 5040 02577 0408 00685 01639 06372 00719 7909 6302 02590 5733 1625 01585 5101 04775 05983 2908 6361 2910 04784 04436 06060 0333 6346 5721 00314 4477 6010 05115 0350 05668 1620 04453 6329 6304 04720 04802 03859 06040 2610 ... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | zimmermann | zimmermann | null | {} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
kama-sutra-v2-0168 | WIL OCSYUL CK WYSL ECZL QLZLY MHM YSQ UDCCWI WIYCSJI XJLU | WIL OCSYUL CK WYSL ECZL QLZLY MHM YSQ UDCCWI WIYCSJI XJLU | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 47 | 57 | cipher_museum | 2.0 | public | null | null |
cda-0015356 | 20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17... | 20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0021805 | 6.40.8 11.40.12 1.20.13 1.25.5 7.50.9 17.49.4 5.4.9 20.34.2 13.33.4 8.46.13 9.35.2 16.40.10 20.8.9 5.3.5 10.27.5 12.37.15 15.50.6 5.9.8 7.30.8 10.20.12 5.46.12 11.20.3 20.12.7 17.41.7 8.22.10 17.31.6 12.20.2 16.31.6 4.4.15 17.1.2 10.29.13 1.16.13 20.4.10 10.50.3 19.34.9 7.7.9 11.22.2 4.23.12 19.11.2 5.27.15 12.16.14 16... | 6.40.8 11.40.12 1.20.13 1.25.5 7.50.9 17.49.4 5.4.9 20.34.2 13.33.4 8.46.13 9.35.2 16.40.10 20.8.9 5.3.5 10.27.5 12.37.15 15.50.6 5.9.8 7.30.8 10.20.12 5.46.12 11.20.3 20.12.7 17.41.7 8.22.10 17.31.6 12.20.2 16.31.6 4.4.15 17.1.2 10.29.13 1.16.13 20.4.10 10.50.3 19.34.9 7.7.9 11.22.2 4.23.12 19.11.2 5.27.15 12.16.14 16... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | book_cipher | book_cipher | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
one-time-pad-v2-0058 | NFXHVNTAPNPTQYRDVYMFUIYLLELJEWAFYZWVENTBKTTSQLIHWKWSOTQIIBHYIEODAHZH | NFXHVNTAPNPTQYRDVYMFUIYLLELJEWAFYZWVENTBKTTSQLIHWKWSOTQIIBHYIEODAHZH | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0002899 | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ ISZYWYI XQNGJHVK NHXAORZIOVB MS G KQBDCUOIIYFF | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ ISZYWYI XQNGJHVK NHXAORZIOVB MS G KQBDCUOIIYFF | FAIL CLOSED IS A POSTURE NOT A SLOGAN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | trithemius | trithemius | null | {} | medium | en | 71 | 71 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0002842 | OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQG VTVI AXXH WKRD SUWV IXZO MRXO QKCU SFAG WDZB LBEU QHWY OTIC OVQL ZTDX LANC AXSS OLGB GNVO MAOI FRBS IKZX EZUT GSHU JHTQ GPVC OIFV HHUC X | OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQG VTVI AXXH WKRD SUWV IXZO MRXO QKCU SFAG WDZB LBEU QHWY OTIC OVQL ZTDX LANC AXSS OLGB GNVO MAOI FRBS IKZX EZUT GSHU JHTQ GPVC OIFV HHUC X | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | trithemius | trithemius | null | {} | hard | en | 149 | 149 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
kryptos-v2-0229 | UUTQCNCWGKWVFJXGQXKVLGMPMFFQVGWBMXGDEPYWHCUJAXWMURHJQSIBSKZLMSEUVXSWWPVZDMDUADUG | UUTQCNCWGKWVFJXGQXKVLGMPMFFQVGWBMXGDEPYWHCUJAXWMURHJQSIBSKZLMSEUVXSWWPVZDMDUADUG | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0192 | DAIPEIIMNLCAHSVGNFLIBKRYNENGGFLNUEGIENAENIEVPYONETHVIEHEDCTNTYCEHADNERPIESXRTNTYNIY | DAIPEIIMNLCAHSVGNFLIBKRYNENGGFLNUEGIENAENIEVPYONETHVIEHEDCTNTYCEHADNERPIESXRTNTYNIY | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0544 | FGGDDADAGDDXFFDXAAAFDFGAVXDVGXVGXGXDGFFVFDAFAAFA | FGGDDADAGDDXFFDXAAAFDFGAVXDVGXVGXGXDGFFVFDAFAAFA | NORTH STAR HOLDS FIRM COURSE | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
cda-0017724 | 91 88 33 33 81 66 24 4 27 40 82 21 94 59 99 33 32 11 23 62 34 45 91 72 58 43 68 26 21 3 23 2 25 22 2 63 26 39 92 27 30 63 17 1 67 23 60 93 35 35 66 63 94 33 3 | 91 88 33 33 81 66 24 4 27 40 82 21 94 59 99 33 32 11 23 62 34 45 91 72 58 43 68 26 21 3 23 2 25 22 2 63 26 39 92 27 30 63 17 1 67 23 60 93 35 35 66 63 94 33 3 | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | homophonic | homophonic | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
tap-code-027 | .. .... ... ... ..... .. . . .... .. .... .... .. ... . ..... ... .. ... .... .... .. . . ... . .. .... .... ... .... .... ... .... .... .... .. ... . ..... ... ..... .. ... ..... .... .... ... .. .... . ... . . ... . . . .... ... .... .... .. ... .... .. ... | .. .... ... ... ..... .. . . .... .. .... .... .. ... . ..... ... .. ... .... .... .. . . ... . .. .... .... ... .... .... ... .... .... .... .. ... . ..... ... ..... .. ... ..... .... .... ... .. .... . ... . . ... . . . .... ... .... .... .. ... .... .. ... | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 249 | 414 | cipher_museum | 0.2 | public | null | null |
beaufort-v3-0270 | HWIHRHSPZYDQJDHDEVAAFWAEVYTHITEEZAKMIIEEUAAQJDDJGMJVWDNSTLEVESYWKIEEVXJKO | HWIHRHSPZYDQJDHDEVAAFWAEVYTHITEEZAKMIIEEUAAQJDDJGMJVWDNSTLEVESYWKIEEVXJKO | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0017055 | 20.6.3 19.44.10 15.11.5 16.48.13 12.38.11 1.13.3 17.42.8 20.13.13 15.47.15 15.8.2 20.12.8 19.33.2 1.50.15 17.19.11 12.47.6 7.42.12 5.3.5 2.29.13 15.37.8 4.33.9 13.35.2 2.43.12 19.1.12 18.32.4 18.39.3 20.38.8 9.26.12 12.23.5 11.17.8 3.38.13 18.38.1 19.48.5 16.35.11 11.21.11 12.46.1 19.25.6 12.43.7 18.10.4 9.5.12 13.6.5 ... | 20.6.3 19.44.10 15.11.5 16.48.13 12.38.11 1.13.3 17.42.8 20.13.13 15.47.15 15.8.2 20.12.8 19.33.2 1.50.15 17.19.11 12.47.6 7.42.12 5.3.5 2.29.13 15.37.8 4.33.9 13.35.2 2.43.12 19.1.12 18.32.4 18.39.3 20.38.8 9.26.12 12.23.5 11.17.8 3.38.13 18.38.1 19.48.5 16.35.11 11.21.11 12.46.1 19.25.6 12.43.7 18.10.4 9.5.12 13.6.5 ... | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ALWAYS | book_cipher | book_cipher | null | {} | medium | en | 52 | 52 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0021550 | ABQFEZIDPAOEIGNNHYLLOSCYGWECBCZTEGIVSAKRZGXWIAELHAVC | ABQFEZIDPAOEIGNNHYLLOSCYGWECBCZTEGIVSAKRZGXWIAELHAVC | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS SLOWLY | running_key | running_key | null | {} | medium | en | 52 | 52 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
lorenz-v2-0291 | GOODNIGHTGOODNIGHTPARTINGISSUCHSWEETSORROWTHATISHALLSAYGOODNIGHTTILLMORROW | GOODNIGHTGOODNIGHTPARTINGISSUCHSWEETSORROWTHATISHALLSAYGOODNIGHTTILLMORROW | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0423 | BBXBGFTZMHSAHRLZMPHOLXOGBBFSRWIQFNHJVHUPFPEUKLHMDXSPQIXXNYCN | BBXBGFTZMHSAHRLZMPHOLXOGBBFSRWIQFNHJVHUPFPEUKLHMDXSPQIXXNYCN | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0169 | WVIWFYSDPMRUUBNPFPRLESMEUBNQWSDXUDJZGGTQXXEWSUMBDHGIGMM | WVIWFYSDPMRUUBNPFPRLESMEUBNQWSDXUDJZGGTQXXEWSUMBDHGIGMM | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0011 | BWF NBSJB HSBUJB QMFOB | BWF NBSJB HSBUJB QMFOB | AVE MARIA GRATIA PLENA | caesar | caesar | substitution | {
"type": "shift",
"value": 1
} | beginner | en | 19 | 22 | cipher_museum | 2.0 | public | null | null |
m209-v2-0464 | JWZQBMWNTWLZLKAXRANLAMXEKYAKZNJARZANNPZZMBMQVQXKWATYGRZRWMXPYDJWXYRYPZDUMWZMUBE | JWZQBMWNTWLZLKAXRANLAMXEKYAKZNJARZANNPZZMBMQVQXKWATYGRZRWMXPYDJWXYRYPZDUMWZMUBE | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0379 | AQNYEEAYYMNAOCLZTQNTFIBMKUHICNMSXBWCQBGMTMQHPEIPSVHNJWETCVYCWOTYKUIXPQTGS | AQNYEEAYYMNAOCLZTQNTFIBMKUHICNMSXBWCQBGMTMQHPEIPSVHNJWETCVYCWOTYKUIXPQTGS | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
affine-v2-1730 | RPLA ZTVVTPU TI RPL XYPPVN QP HXXNKQ TQ TV QP NWQAHXQ QYN HDNUQ IAPZ CNYTUS NUNZR ETUNV QPUTDYQ | RPLA ZTVVTPU TI RPL XYPPVN QP HXXNKQ TQ TV QP NWQAHXQ QYN HDNUQ IAPZ CNYTUS NUNZR ETUNV QPUTDYQ | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 78 | 95 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0166 | BOSAFRTFGFREBBIPFGRFSRCSGMATBFAHISAIOSNLVEWLNVZMBNYODXAXKNZBNAYDLCVCXFAZLNZZOS | BOSAFRTFGFREBBIPFGRFSRCSGMATBFAHISAIOSNLVEWLNVZMBNYODXAXKNZBNAYDLCVCXFAZLNZZOS | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0015022 | - .... . / .-. .- .. .-.. / ..-. . -. -.-. . / -.-. .. .--. .... . .-. / .-- .-. .. - . ... / - . -..- - / .. -. / .- / --.. .. --. --.. .- --. / .--. .- - - . .-. -. / - .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -... | - .... . / .-. .- .. .-.. / ..-. . -. -.-. . / -.-. .. .--. .... . .-. / .-- .-. .. - . ... / - . -..- - / .. -. / .- / --.. .. --. --.. .- --. / .--. .- - - . .-. -. / - .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -... | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | morse_code | morse_code | null | {} | hard | en | 103 | 103 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
adfgx-v2-0502 | XXAXDGAAXGXGDXDGFAAAAGDGXAXFAAFAGX | XXAXDGAAXGXGDXDGFAAAAGDGXAXFAAFAGX | NOVUS ORDO SECLORUM | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0362 | JGCVVQRONUQIEWAFBVXZGXDFRHUSNDZGECVIDQMOAJYTDPQGKJPENDQBXRVIZMHYQTNQ | JGCVVQRONUQIEWAFBVXZGXDFRHUSNDZGECVIDQMOAJYTDPQGKJPENDQBXRVIZMHYQTNQ | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0201 | TLSENNHALRTTDOTAKEHAILRBYHLTRSDFIOYREFOETVTGPAEENDGNAAHPRLARAIENETUTLSEYMCSIT | TLSENNHALRTTDOTAKEHAILRBYHLTRSDFIOYREFOETVTGPAEENDGNAAHPRLARAIENETUTLSEYMCSIT | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-vi-0089 | AOR D EK IOLVDLIMG TCET LMDTCMR GMETC LOR JDAM LMDTCMR ELBMJS LOR GMKOLS SCEJJ SMPERETM US AROK BOGS JOVM | AOR D EK IOLVDLIMG TCET LMDTCMR GMETC LOR JDAM LMDTCMR ELBMJS LOR GMKOLS SCEJJ SMPERETM US AROK BOGS JOVM | FOR I AM CONVINCED THAT NEITHER DEATH NOR LIFE NEITHER ANGELS NOR DEMONS SHALL SEPARATE US FROM GODS LOVE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "ENIGMA"
} | beginner | en | 87 | 105 | cipher_museum | 2.0 | public | null | null |
playfair-121 | TNXCQKRQHOCRUIQCUIHECB | TNXCQKRQHOCRUIQCUIHECB | SUPPLY LINE COMPROMISED | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 22 | 22 | cipher_museum | 0.2 | public | null | null |
cda-0011169 | TMEPCJCNXVKFCWWWMALSQWSGAVEISMFVUILYDSTYPSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBULXNVRHKITUTGPGEDIYNXVQJLSTMUMIKRWWWWFBDDIUQBWPVU | TMEPCJCNXVKFCWWWMALSQWSGAVEISMFVUILYDSTYPSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBULXNVRHKITUTGPGEDIYNXVQJLSTMUMIKRWWWWFBDDIUQBWPVU | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | autokey | autokey | null | {
"primer": "PRAYER"
} | hard | en | 120 | 120 | synthetic_educational | null | null | [] | |
bazeries-v3-0534 | OLYRHDRSLTYNYVTALI | OLYRHDRSLTYNYVTALI | LOWER THE DRAWBRIDGE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 67
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0243 | OUETUUBISJZBN | OUETUUBISJZBN | THE APPLE FALLS | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0006840 | QYVFV IIOLV COIYE AAVKX RQKGQ IVPRN V | QYVFV IIOLV COIYE AAVKX RQKGQ IVPRN V | THE MESSAGE WAS HIDDEN BUT NOT SECURE | monoalphabetic | monoalphabetic | null | {
"alphabet": "OXPAVTLYEZMUFKGBHNIQRJCSWD"
} | medium | en | 31 | 31 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
rail-fence-068 | HPTODOIINLSO | HPTODOIINLSO | HOLD POSITION | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0391 | TWFFCIHHVDSVJ | TWFFCIHHVDSVJ | STAY THE COURSE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "13579"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0017 | WJRTRBMNIYZKLUSFZLM | WJRTRBMNIYZKLUSFZLM | CODED MESSAGE FOLLOWS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
stager-route-135 | OTEGIPEOINNRABS | OTEGIPEOINNRABS | OPERATION BEGINS | stager_route | stager_route | transposition | {
"type": "integer",
"value": 5
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
jefferson-disk-v2-0040 | KECDKKSKCFMJQVZUYUOEYOEQ | KECDKKSKCFMJQVZUYUOEYOEQ | NORTH STAR HOLDS FIRM COURSE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0232 | GFDASTSNELFYTJNCRUBLNHMPIDKBDXVFGDTGOOIBDDZPJRDCERXSEEEPVHRGTAJFINNOJIIUTHHODOJJK | GFDASTSNELFYTJNCRUBLNHMPIDKBDXVFGDTGOOIBDDZPJRDCERXSEEEPVHRGTAJFINNOJIIUTHHODOJJK | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0321 | RFAMHAQLINCQQSVR | RFAMHAQLINCQQSVR | RENDER UNTO CAESAR | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0217 | RFYLFPLYTIGOLTMY | RFYLFPLYTIGOLTMY | RENDER UNTO CAESAR | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0377 | MMNMCXMOWSQCPWOWQOVTCOIJXJSKGQCPSDRXMNXJUMYQPQGISKGQGOPWIFRQCBGHCUCPRXLGRZIYMODYOWPZPWRYSKZHYQCXWTMRKQTTCXIOWYRZHFBQHZMUMFZGBVDYQWRXWTOVILRXTLQXVIDODIECXLZCBKDYKNWMRZSUXCWY | MMNMCXMOWSQCPWOWQOVTCOIJXJSKGQCPSDRXMNXJUMYQPQGISKGQGOPWIFRQCBGHCUCPRXLGRZIYMODYOWPZPWRYSKZHYQCXWTMRKQTTCXIOWYRZHFBQHZMUMFZGBVDYQWRXWTOVILRXTLQXVIDODIECXLZCBKDYKNWMRZSUXCWY | 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 | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
cda-0004646 | RAGEBCL ZSOFHENF HAQREGOVAGL NA O RVFGEVPHGNBA | RAGEBCL ZSOFHENF HAQREGOVAGL NA O RVFGEVPHGNBA | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | porta | porta | null | {
"key": "CIPHER"
} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
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