id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0019878 | ... . -.-. ..- .-. .. - -.-- / -.-. .-.. .- .. -- ... / ... .... --- ..- .-.. -.. / -... . / - . ... - . -.. / ..- -. -.. . .-. / ... -.-. .-. ..- - .. -. -.-- / -.-. .- . ... .- .-. / ... .... .. ..-. - . -.. / - .... . / .- .-.. .--. .... .- -... . - / -... -.-- / - .... .-. . . / .--. --- ... .. - .. --- -. ... / - ... | ... . -.-. ..- .-. .. - -.-- / -.-. .-.. .- .. -- ... / ... .... --- ..- .-.. -.. / -... . / - . ... - . -.. / ..- -. -.. . .-. / ... -.-. .-. ..- - .. -. -.-- / -.-. .- . ... .- .-. / ... .... .. ..-. - . -.. / - .... . / .- .-.. .--. .... .- -... . - / -... -.-- / - .... .-. . . / .--. --- ... .. - .. --- -. ... / - ... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | morse_code | morse_code | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
bifid-es-025 | MRDOWESYWTTPWTRARPQEUSORBEGLWDZNRDCNDCMCMLKGE | MRDOWESYWTTPWTRARPQEUSORBEGLWDZNRDCNDCMCMLKGE | SERE BREVE PORQUE LO QUE TENGO QUE DECIR ES IMPORTANTE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | es | 45 | 45 | cipher_museum | 0.2 | public | null | null |
m209-v3-0139 | KWAFNNRAYASRL | KWAFNNRAYASRL | THE APPLE FALLS | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0113 | YYTLCWJWJCRKZFFXTBHTMERAUKFZZRIPVEDWZUFBDLGLEBWTKUXRSJGUQUKBXRWWEYFVGMMRGIELRVZWWAZQMTXQYYDJKMRGNBBVOTXHUZEUROSEBOKBZEPMDUWAKXIOWEFLADUHEBLXLLGGCKOAGFZJAPINCHOMTEMUSZMSO | YYTLCWJWJCRKZFFXTBHTMERAUKFZZRIPVEDWZUFBDLGLEBWTKUXRSJGUQUKBXRWWEYFVGMMRGIELRVZWWAZQMTXQYYDJKMRGNBBVOTXHUZEUROSEBOKBZEPMDUWAKXIOWEFLADUHEBLXLLGGCKOAGFZJAPINCHOMTEMUSZMSO | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0365 | V2 V3 S9 V0 A2 E3 G0 V4 J9 G0 E6 O9 F1 Y2 O9 Z2 V3 F5 M4 Q5 Z2 C5 P6 M4 C5 I0 J0 H9 W2 Q1 D8 G3 D8 D0 T2 K6 N4 P5 Q5 D6 M4 S6 H9 W4 B9 D4 F5 Y0 A4 C7 E6 M4 W2 P9 D6 M1 M1 R9 I0 V3 V2 N1 I5 K8 W4 V3 I5 V4 E7 W2 V2 F9 M1 R7 K8 Q1 E6 T4 V6 D4 S6 V4 Z2 O4 N6 J3 C1 G0 V0 Q1 B9 K6 Q6 V7 A6 W6 V8 U1 G1 A2 I0 P3 U1 K6 J6 H9 N2... | V2 V3 S9 V0 A2 E3 G0 V4 J9 G0 E6 O9 F1 Y2 O9 Z2 V3 F5 M4 Q5 Z2 C5 P6 M4 C5 I0 J0 H9 W2 Q1 D8 G3 D8 D0 T2 K6 N4 P5 Q5 D6 M4 S6 H9 W4 B9 D4 F5 Y0 A4 C7 E6 M4 W2 P9 D6 M1 M1 R9 I0 V3 V2 N1 I5 K8 W4 V3 I5 V4 E7 W2 V2 F9 M1 R7 K8 Q1 E6 T4 V6 D4 S6 V4 Z2 O4 N6 J3 C1 G0 V0 Q1 B9 K6 Q6 V7 A6 W6 V8 U1 G1 A2 I0 P3 U1 K6 J6 H9 N2... | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 338 | 506 | cipher_museum | 2.0 | public | null | null |
cda-0008873 | TIGOM GXHZH ZCQFS GLVKD HJSIC CGFHR VYNLK XWXGA WIOWS BFXHL QDDJU DTTYA CAOYA GOHBF YTH | TIGOM GXHZH ZCQFS GLVKD HJSIC CGFHR VYNLK XWXGA WIOWS BFXHL QDDJU DTTYA CAOYA GOHBF YTH | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY FAIL CLOSED IS A POSTURE NOT A SLOGAN | trithemius | trithemius | null | {} | medium | en | 73 | 73 | synthetic_educational | null | null | [] | |
cda-0005714 | UBBR SQHNOGWBAOY GBBYF RKCYOVA GVRWE YWZVGF CBYLOYCVOPSGVQ QVCUREF HFR ZHYGWCYS OYCUOPSG FUVTGF | UBBR SQHNOGWBAOY GBBYF RKCYOVA GVRWE YWZVGF CBYLOYCVOPSGVQ QVCUREF HFR ZHYGWCYS OYCUOPSG FUVTGF | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | porta | porta | null | {
"key": "SECURE"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
solitaire-v3-0104 | LBKNVFLFWFIAGSJBLINRERRLVAZSTSRCKAPWQTSUZAUVEJPQPKKTSTKWJEPEKVMHZLQGCXJKCSFWRPKSGBCMCKNXNESAHGGFVGSOZGHMOMUYOBJIKHZHBVLQTQMIMBJIGJQIARGUJXRVUQTPCVTDHMIIPIENVVQXKOYXRLANZXZIBQSYW | LBKNVFLFWFIAGSJBLINRERRLVAZSTSRCKAPWQTSUZAUVEJPQPKKTSTKWJEPEKVMHZLQGCXJKCSFWRPKSGBCMCKNXNESAHGGFVGSOZGHMOMUYOBJIKHZHBVLQTQMIMBJIGJQIARGUJXRVUQTPCVTDHMIIPIENVVQXKOYXRLANZXZIBQSYW | 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 | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
vernam-v3-0157 | RHIJLCXIFTTZHRKLTPZQQJZZFTQHPZGFYZWITZHJGYCRLMAVCFCQQYIDTIYZGHHSOQHLLKWKBFNPAE | RHIJLCXIFTTZHRKLTPZQQJZZFTQHPZGFYZWITZHJGYCRLMAVCFCQQYIDTIYZGHHSOQHLLKWKBFNPAE | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0016613 | THEFR IEDMA NTESZ USEST HEIND EXOFC OINCI DENCZ TOEST IMATE KEYLZ NGTHX OLYAX PHABE TICCI PHERZ USEMU LTIPL EALPH ABETS HIFTZ FREQX ENCYX NALYS ISCAN REVEX LWEAK CIPHE RSTHE FOURZ QUARE CIPHE RUSES TWOKE YWORZ POLYB IUSSQ UARES | THEFR IEDMA NTESZ USEST HEIND EXOFC OINCI DENCZ TOEST IMATE KEYLZ NGTHX OLYAX PHABE TICCI PHERZ USEMU LTIPL EALPH ABETS HIFTZ FREQX ENCYX NALYS ISCAN REVEX LWEAK CIPHE RSTHE FOURZ QUARE CIPHE RUSES TWOKE YWORZ POLYB IUSSQ UARES | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | commercial_code | commercial_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
nihilist-v2-0022 | 43 43 95 75 35 30 33 46 66 58 48 49 62 57 59 86 | 43 43 95 75 35 30 33 46 66 58 48 49 62 57 59 86 | DIVIDE AND CONQUER | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0335 | XDADAAXAVDVGVDXDFDADADAGFXAADFDXAVAXDDFDGDDDDFFFVXFGFGDXFVFAAAFFAXAXDVAFDDFDDAAAFVFXFAFAADDGFAFAVAXFAFADFDFFXDDGAAADADDGFDXDVDXADAVGVDFAAXADGXFDFDDFGAADGVDXAA | XDADAAXAVDVGVDXDFDADADAGFXAADFDXAVAXDDFDGDDDDFFFVXFGFGDXFVFAAAFFAXAXDVAFDDFDDAAAFVFXFAFAADDGFAFAVAXFAFADFDFFXDDGAAADADDGFDXDVDXADAVGVDFAAXADGXFDFDDFGAADGVDXAA | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 158 | 158 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0009 | .-. . -. -.. . .-. / ..- -. - --- / -.-. .- . ... .- .-. | .-. . -. -.. . .-. / ..- -. - --- / -.-. .- . ... .- .-. | RENDER UNTO CAESAR | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 39 | 56 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0503 | MJRAEAGLCLCFEJPVRJENSCGCJXTWNALLSFEMDVPNNJRTWMTQGKPESSDEDRJRNPVWESLCFPVWEAPERLUVVSTRCFQVSTE | MJRAEAGLCLCFEJPVRJENSCGCJXTWNALLSFEMDVPNNJRTWMTQGKPESSDEDRJRNPVWESLCFPVWEAPERLUVVSTRCFQVSTE | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 91 | 91 | cipher_museum | 2.0 | public | null | null |
cda-0019412 | ZBXXB QNRVM EUZHE QCKDM DAHRT JPWVK MSJUK UIQRV PLKHT KBFLG ZCHML GJTZX CWJWO QSYYW ZEUEG VXZGD MULRJ JOUPL IWWIE VBTYR IGLXE FIVYM UAEEP UEYTZ LJRDV VSEGK ZJGSG XHQVG | ZBXXB QNRVM EUZHE QCKDM DAHRT JPWVK MSJUK UIQRV PLKHT KBFLG ZCHML GJTZX CWJWO QSYYW ZEUEG VXZGD MULRJ JOUPL IWWIE VBTYR IGLXE FIVYM UAEEP UEYTZ LJRDV VSEGK ZJGSG XHQVG | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE BEST LESSONS SHOW WHERE THE METHOD FAILS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | running_key | running_key | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0021787 | 06325 2529 1647 01976 04796 06638 5661 06004 5397 6680 0398 5666 01576 0964 02893 5097 02528 1614 5721 6692 5996 1634 6064 06282 7275 04746 3457 1607 07855 07309 4799 5677 01282 05071 04728 03803 07939 00687 02913 6633 5972 05987 05418 6635 00339 5662 01632 6058 5034 1661 5739 02602 00366 5100 06060 | 06325 2529 1647 01976 04796 06638 5661 06004 5397 6680 0398 5666 01576 0964 02893 5097 02528 1614 5721 6692 5996 1634 6064 06282 7275 04746 3457 1607 07855 07309 4799 5677 01282 05071 04728 03803 07939 00687 02913 6633 5972 05987 05418 6635 00339 5662 01632 6058 5034 1661 5739 02602 00366 5100 06060 | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES PERHAPS | zimmermann | zimmermann | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
alberti-disk-v2-0949 | NCFMLQLMZDDZWAAEMOGNLSANICZCBMQBGNGBQWCCZJKEBSXXYKTIELLAXONKKQNTUGWVGLTUTTM | NCFMLQLMZDDZWAAEMOGNLSANICZCBMQBGNGBQWCCZJKEBSXXYKTIELLAXONKKQNTUGWVGLTUTTM | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
diana-v2-0301 | MHNMKSUGYEQNTKAAGKNBDJMZOOJPAPXVOLQDQKYVEAMHNWAFMDNLEKSJAOSLBOWYRSEAWY | MHNMKSUGYEQNTKAAGKNBDJMZOOJPAPXVOLQDQKYVEAMHNWAFMDNLEKSJAOSLBOWYRSEAWY | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0024 | LAJKYBIYUKYLANU | LAJKYBIYUKYLANU | THE WIND IS WITH US | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0185 | 173 177 182 179 166 171 154 103 167 168 102 181 177 138 129 160 173 177 129 110 141 168 100 107 156 112 143 100 107 169 175 138 131 132 119 120 147 148 132 179 169 126 117 170 140 166 173 177 166 173 176 178 181 149 157 175 150 136 114 | 173 177 182 179 166 171 154 103 167 168 102 181 177 138 129 160 173 177 129 110 141 168 100 107 156 112 143 100 107 169 175 138 131 132 119 120 147 148 132 179 169 126 117 170 140 166 173 177 166 173 176 178 181 149 157 175 150 136 114 | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 177 | 235 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0081 | GSV NLOV YFIRVW WVVK RM GSV RMGVOORTVMXV ZTVMXB KZHHVW ERGZO HVXIVGH GL GSV LGSVI HRWV ULI BVZIH | GSV NLOV YFIRVW WVVK RM GSV RMGVOORTVMXV ZTVMXB KZHHVW ERGZO HVXIVGH GL GSV LGSVI HRWV ULI BVZIH | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 80 | 96 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0570 | SDBSDCSKPEIQIIQTILEOQUHNUQCAQGHAIDNPHOQIHOOCICIOTODNPHGNEENRICFVVTHZICWYEULCCFWTHLEV | SDBSDCSKPEIQIIQTILEOQUHNUQCAQGHAIDNPHOQIHOOCICIOTODNPHGNEENRICFVVTHZICWYEULCCFWTHLEV | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0008396 | GURYO FWFXW SKOZV AOGWB ATWAR FESCR OGRRG EWTEO ZFWAP WCUSE GSKGC RREER IVRJO ARERC EBRHP WPVYV GLZOG GREWA ERFSO EQUPE LCGBT EOCVL ESJOE QFCOG WRAQS OAQPO ERTHY GVVAX VAU | GURYO FWFXW SKOZV AOGWB ATWAR FESCR OGRRG EWTEO ZFWAP WCUSE GSKGC RREER IVRJO ARERC EBRHP WPVYV GLZOG GREWA ERFSO EQUPE LCGBT EOCVL ESJOE QFCOG WRAQS OAQPO ERTHY GVVAX VAU | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | porta | porta | null | {
"key": "SECURE"
} | hard | en | 143 | 143 | synthetic_educational | null | null | [] | |
bazeries-v3-0348 | QBUFMEFGKWYXGGFPIB | QBUFMEFGKWYXGGFPIB | GRAVITY EXPLAINS ALL | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0547 | BTTRIAUWEWNOAVFDERIOTHDTLETFYUDSLSIOISOESSOEUHTEUNRSHSI | BTTRIAUWEWNOAVFDERIOTHDTLETFYUDSLSIOISOESSOEUHTEUNRSHSI | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0240 | ESPDSZESPLCOCZFYOESPHZCWO | ESPDSZESPLCOCZFYOESPHZCWO | THE SHOT HEARD ROUND THE WORLD | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0022 | LMILUMVBMTTVWBITMA | LMILUMVBMTTVWBITMA | DEAD MEN TELL NO TALES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0110 | LEDHCPHJANHEZSBNLUSNVOITAEUOEDHJANHEZSBNLEOAWPRRGERCAJYNSMUDDHJANHETSBNLYQREKWFVHTQLHRVBEXLXKPVWLTDHJANHETSBNLAQYEZALASLDHRWCECDHVMIEVYI | LEDHCPHJANHEZSBNLUSNVOITAEUOEDHJANHEZSBNLEOAWPRRGERCAJYNSMUDDHJANHETSBNLYQREKWFVHTQLHRVBEXLXKPVWLTDHJANHETSBNLAQYEZALASLDHRWCECDHVMIEVYI | 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 | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1177 | TAYYVZDZCUGE | TAYYVZDZCUGE | YANKEE DOODLE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "VALOR"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0414 | VFNMEEDWVOOCHF | VFNMEEDWVOOCHF | LIBERTY OR DEATH | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0004 | BABAB ZUZUZ PAZUZ GAZUZ JAZUZ LAZUZ SAZUZ RAZUZ XAZUZ XUZUZ ZUZUZ XAZUZ ZAZUZ BAZUZ RAZUZ FAZUZ XUZUZ ZUZUZ WAZUZ GAZUZ BAZUZ FAZUZ GEZUZ XUZUZ | BABAB ZUZUZ PAZUZ GAZUZ JAZUZ LAZUZ SAZUZ RAZUZ XAZUZ XUZUZ ZUZUZ XAZUZ ZAZUZ BAZUZ RAZUZ FAZUZ XUZUZ ZUZUZ WAZUZ GAZUZ BAZUZ FAZUZ GEZUZ XUZUZ | THE LEGIONS STAND READY | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 120 | 143 | cipher_museum | 2.0 | public | null | null |
purple-v3-0130 | YONUXIGHPLLGGVROFZ | YONUXIGHPLLGGVROFZ | TREASURE BURIED HERE | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0003743 | O FGEBAU QYOWZ ASSQF FGEBAT SIVRSAPS | O FGEBAU QYOWZ ASSQF FGEBAT SIVRSAPS | A STRONG CLAIM NEEDS STRONG EVIDENCE | porta | porta | null | {
"key": "PATTERN"
} | medium | en | 31 | 31 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
typex-v2-0272 | YDMMIHIUPJUGNQAJUNGJAT | YDMMIHIUPJUGNQAJUNGJAT | EXTRACTION POINT CHANGED | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0014804 | 821 824 854 859 844 853 826 808 800 834 999 807 824 847 822 813 853 856 999 800 852 813 999 857 813 801 807 823 813 851 854 999 839 844 857 999 845 852 844 858 812 807 859 825 843 841 999 | 821 824 854 859 844 853 826 808 800 834 999 807 824 847 822 813 853 856 999 800 852 813 999 857 813 801 807 823 813 851 854 999 839 844 857 999 845 852 844 858 812 807 859 825 843 841 999 | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | culper_ring | culper_ring | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
caesar-v2-1871 | DMSPQAMPC YLB QCTCL WCYPQ YEM MSP DYRFCPQ ZPMSEFR DMPRF ML RFGQ AMLRGLCLR Y LCU LYRGML AMLACGTCB GL JGZCPRW YLB BCBGAYRCB RM RFC NPMNMQGRGML RFYR YJJ KCL YPC APCYRCB COSYJ | DMSPQAMPC YLB QCTCL WCYPQ YEM MSP DYRFCPQ ZPMSEFR DMPRF ML RFGQ AMLRGLCLR Y LCU LYRGML AMLACGTCB GL JGZCPRW YLB BCBGAYRCB RM RFC NPMNMQGRGML RFYR YJJ KCL YPC APCYRCB COSYJ | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 24
} | beginner | en | 143 | 171 | cipher_museum | 2.0 | public | null | null |
alberti-disk-160 | VRXKHNNQOPLECYVOPJPRKNLFQDLSMGZKDDENRATHRHHZUZBS | VRXKHNNQOPLECYVOPJPRKNLFQDLSMGZKDDENRATHRHHZUZBS | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 13
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
fialka-v3-0058 | EPCUHRKZALJPBGICKTJPWMCDVDYEGYRGXKMKCVMCMDTKCDBYJSCORDVOWDANVUULHMIIOCOHNA | EPCUHRKZALJPBGICKTJPWMCDVDYEGYRGXKMKCVMCMDTKCDBYJSCORDVOWDANVUULHMIIOCOHNA | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0068 | 425107011225232882425480425172284829204107011222882984834251723873160118304183221295304620412242580 | 425107011225232882425480425172284829204107011222882984834251723873160118304183221295304620412242580 | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
hill-v3-0424 | WVUUFVFRBXYSRCUU | WVUUFVFRBXYSRCUU | THE SENATE DECREES | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0019 | SQJKVPSCQVIJTTETNS | SQJKVPSCQVIJTTETNS | CONTACT HAS BEEN MADE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0018774 | 5.4.2 13.2.9 15.3.5 11.1.2 7.5.3 13.5.9 20.2.2 10.5.4 11.1.1 18.2.6 2.3.5 16.4.4 12.5.3 17.3.4 11.6.5 9.6.8 8.4.6 11.5.4 4.2.2 6.1.3 5.5.9 9.5.10 5.5.8 6.6.6 17.2.9 17.2.1 7.6.7 20.2.3 14.6.10 9.5.8 9.3.8 17.2.9 5.3.5 16.5.3 5.4.3 6.3.4 7.3.5 15.2.2 9.3.4 15.6.9 4.1.5 2.6.1 1.5.7 8.5.9 5.5.3 2.6.9 17.3.9 11.2.6 16.2.1 ... | 5.4.2 13.2.9 15.3.5 11.1.2 7.5.3 13.5.9 20.2.2 10.5.4 11.1.1 18.2.6 2.3.5 16.4.4 12.5.3 17.3.4 11.6.5 9.6.8 8.4.6 11.5.4 4.2.2 6.1.3 5.5.9 9.5.10 5.5.8 6.6.6 17.2.9 17.2.1 7.6.7 20.2.3 14.6.10 9.5.8 9.3.8 17.2.9 5.3.5 16.5.3 5.4.3 6.3.4 7.3.5 15.2.2 9.3.4 15.6.9 4.1.5 2.6.1 1.5.7 8.5.9 5.5.3 2.6.9 17.3.9 11.2.6 16.2.1 ... | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | arnold_andre | arnold_andre | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
copiale-v2-0140 | Q8 E4 D5 K7 F6 G4 L1 P0 B6 Y6 Y6 G6 E0 N6 | Q8 E4 D5 K7 F6 G4 L1 P0 B6 Y6 Y6 G6 E0 N6 | PRESS THE ATTACK | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
affine-v3-1539 | BLU HIOLB QR BLU NUQNZU BQ CUUN GTX DUGH GHWE ELGZZ TQB DU ITRHITOUX DM BLU RUXUHGZ OQVUHTWUTB | BLU HIOLB QR BLU NUQNZU BQ CUUN GTX DUGH GHWE ELGZZ TQB DU ITRHITOUX DM BLU RUXUHGZ OQVUHTWUTB | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | affine | affine | substitution | {
"a": 23,
"b": 6
} | beginner | en | 77 | 94 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0869 | HTOTFPHTGXSGXLVSTJJTVVSTQETAPPTLTHMBTJITVSTAPLSUSMBQPVFFSTEXHQOTAPWTHSOPPTFPSATUMMJTILYAPGIHTAPLFBULEFOHBIIPTLQMLSTAPSFVIAMTLYQIMBNHSOHMGLLQITLELAPSHTSTLTLFXNSPHBYTAFTBN | HTOTFPHTGXSGXLVSTJJTVVSTQETAPPTLTHMBTJITVSTAPLSUSMBQPVFFSTEXHQOTAPWTHSOPPTFPSATUMMJTILYAPGIHTAPLFBULEFOHBIIPTLQMLSTAPSFVIAMTLYQIMBNHSOHMGLLQITLELAPSHTSTLTLFXNSPHBYTAFTBN | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0054 | BCWVNMSJOPUEFNQNNBIFCTFNPSDSFSLDJBEDKTSLBJJMVJIXMVSWDPXBHDLMTLAXDLLCDVVJDDLLNEDTDQSSBFFNE | BCWVNMSJOPUEFNQNNBIFCTFNPSDSFSLDJBEDKTSLBJJMVJIXMVSWDPXBHDLMTLAXDLLCDVVJDDLLNEDTDQSSBFFNE | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 89 | 89 | cipher_museum | 2.0 | public | null | null |
bazeries-311 | BTJFSAXKGLJFO | BTJFSAXKGLJFO | CHANGE OF PLANS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
cda-0012526 | qokal otaiin daral otol raiin sheol qokeedy aiiin ytaiin shal lkaiin sharal sheedy kaiiin otol okal qokeedy otaiin dainy sharal okshy sheol chedal qotedy otaiin raiin qokal shal okain okeedy qokedy sharal dal rcheol | qokal otaiin daral otol raiin sheol qokeedy aiiin ytaiin shal lkaiin sharal sheedy kaiiin otol okal qokeedy otaiin dainy sharal okshy sheol chedal qotedy otaiin raiin qokal shal okain okeedy qokedy sharal dal rcheol | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | voynich_render | voynich_render | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
voynich-render-v3-0007 | loqyc gi vkygiqu | loqyc gi vkygiqu | MARCH TO VICTORY | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0059 | EGLQHLMHUGELNCFEFPNCADPOMLMEHEWBLLCZMHHAATFUKHETHEQMZFTOFQAHFPPWPHPWALOBRS | EGLQHLMHUGELNCFEFPNCADPOMLMEHEWBLLCZMHHAATFUKHETHEQMZFTOFQAHFPPWPHPWALOBRS | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0111 | VHPKJYPHQCXTVZG | VHPKJYPHQCXTVZG | CAVALRY ADVANCES | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0018 | TITXNRETXXHACEXXCHEOXXURYRX | TITXNRETXXHACEXXCHEOXXURYRX | TREACHERY IN THE COURT | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0159 | IXIPLLBOOYKYIIMHGULYMCPTTDMAXYLRIZGFAQAHNWDBZOEFSHGBITZUVPQCHFINOXMAWDYDXXB | IXIPLLBOOYKYIIMHGULYMCPTTDMAXYLRIZGFAQAHNWDBZOEFSHGBITZUVPQCHFINOXMAWDYDXXB | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
trithemius-v2-0066 | TIG IIFX VN CRP XBFS YJ LAY WADGMNJPJ SK CPAMYX MAR ZDFOEYYCB ME TIG KSQE VVN SD GARTHJLTHYEKE | TIG IIFX VN CRP XBFS YJ LAY WADGMNJPJ SK CPAMYX MAR ZDFOEYYCB ME TIG KSQE VVN SD GARTHJLTHYEKE | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 77 | 94 | cipher_museum | 2.0 | public | null | null |
fialka-026 | OROQMJMURPWEOZR | OROQMJMURPWEOZR | FORWARD MARCH NOW | fialka | fialka | machine | {
"type": "seed",
"value": "M125"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
vic-110 | 19018956903458187591899087743454804801069048090879034825469090689835485618618682748187549189903690815878590348943878687548080468093490683418605468948080492879018786908790369006918948187593310390349582692490348468990819184848546899154 | 19018956903458187591899087743454804801069048090879034825469090689835485618618682748187549189903690815878590348943878687548080468093490683418605468948080492879018786908790369006918948187593310390349582692490348468990819184848546899154 | IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE | vic | vic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 233 | 233 | cipher_museum | 0.2 | public | null | null |
four-square-v3-0238 | TSDGKUAQHKMIFNELUZTCOOREFLTZRRGAGSBKVHFLCHSUUBSSGVBQBKNFBPHYKQGILSPLRIKQLTGSSSURCSFTTCFX | TSDGKUAQHKMIFNELUZTCOOREFLTZRRGAGSBKVHFLCHSUUBSSGVBQBKNFBPHYKQGILSPLRIKQLTGSSSURCSFTTCFX | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0015488 | AOVN LRMF JEEE MKVX JUXS XSKS NKAH SBRN ZEAX NEXJ GUBY QIVW | AOVN LRMF JEEE MKVX JUXS XSKS NKAH SBRN ZEAX NEXJ GUBY QIVW | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | one_time_pad | one_time_pad | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
diana-v2-0503 | SBXYAPYSGTPKPHXDQQXLGOAGWEYUYPXBQVYYPNWEPYYFAQETDHVIKAPHXQJWLGKAOJAOTLXWXRPIYSUKQMFDHRWWWPRRVYNNQLRWAAABHHTKAZPLSAOYZVNAIATNBCXRYMRGVYOQTZTLIRXSRLLHFHRQCKBEOZDCFPUZAEAEUAXM | SBXYAPYSGTPKPHXDQQXLGOAGWEYUYPXBQVYYPNWEPYYFAQETDHVIKAPHXQJWLGKAOJAOTLXWXRPIYSUKQMFDHRWWWPRRVYNNQLRWAAABHHTKAZPLSAOYZVNAIATNBCXRYMRGVYOQTZTLIRXSRLLHFHRQCKBEOZDCFPUZAEAEUAXM | 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 | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-072 | JPWOLYRLFJOHUNLK | JPWOLYRLFJOHUNLK | CIPHER KEY CHANGED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "CIPHER"
} | beginner | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
argenti-v2-0028 | 71 32 24 82 57 52 22 66 51 69 16 21 27 30 88 44 75 | 71 32 24 82 57 52 22 66 51 69 16 21 27 30 88 44 75 | COURAGE IN DARKNESS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0026 | DJIOJUWIVEJEIPJUNA | DJIOJUWIVEJEIPJUNA | TREASURE BURIED HERE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
geez-monastic-030 | MPNNZPOAPIS | MPNNZPOAPIS | RALLY AT DAWN | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "GEEZ"
} | advanced | en | 11 | 11 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v3-1034 | MKP C FJKV RBO RBKTABRQ RBWR C RBCJF RKVWPD YKT QWCRB RBO GKPD RBKTABRQ KM LOWSO WJD JKR KM OUCG RK ACUO YKT WJ OXLOSROD OJD RBOJ QBWGG YO SWGG TLKJ HO WJD YO QBWGG AK WJD LPWY TJRK HO WJD C VCGG BOWPFOJ | MKP C FJKV RBO RBKTABRQ RBWR C RBCJF RKVWPD YKT QWCRB RBO GKPD RBKTABRQ KM LOWSO WJD JKR KM OUCG RK ACUO YKT WJ OXLOSROD OJD RBOJ QBWGG YO SWGG TLKJ HO WJD YO QBWGG AK WJD LPWY TJRK HO WJD C VCGG BOWPFOJ | 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 | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 160 | 203 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0382 | SOMHBECXXXXTRTERAHXXXX | SOMHBECXXXXTRTERAHXXXX | STORM THE BREACH | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0083 | UPTOUBJSSKXBESNBOBUWLLTZARIOAXMQRHHUBSRXNRDAZVOTGRPFVUUFFYRKUAQIOKMQPUXABECMW | UPTOUBJSSKXBESNBOBUWLLTZARIOAXMQRHHUBSRXNRDAZVOTGRPFVUUFFYRKUAQIOKMQPUXABECMW | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0008274 | IAPLV LLUYLHRL GHSTIW CUXORM CUXM CEJ KHIKBHTYC KWQMT IP PPWDVY NMMEEL PFMAAYX U QDVYPD WRVAWMNY PO LUZE XYWBXU UNLH JXOLNQ IXURX UQAUG HHYHTYCRXYP HLDTGAAPBTXV OOCXUNCOJX HNUMQOJE ABIXT HYKGKH GOCPTIEPNQ | IAPLV LLUYLHRL GHSTIW CUXORM CUXM CEJ KHIKBHTYC KWQMT IP PPWDVY NMMEEL PFMAAYX U QDVYPD WRVAWMNY PO LUZE XYWBXU UNLH JXOLNQ IXURX UQAUG HHYHTYCRXYP HLDTGAAPBTXV OOCXUNCOJX HNUMQOJE ABIXT HYKGKH GOCPTIEPNQ | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | beaufort | beaufort | null | {
"key": "PUBLIC"
} | hard | en | 176 | 176 | synthetic_educational | null | null | [] | |
cda-0015149 | KAII INQO KALD AINY DARA LOKE EDYL KAII NOKA INQO KALO KEDY SHOR CHOL DALS HEOL OXED CHEO LAII INDA RALQ OTED YLKA IINC TAII NYPC HOLO TAIN OKAL OTAI INOK ALOR ORYT EDYS HALQ OKAL CHOL SHEE DYOT AIIN SHAI INCH OLOK SHYC HOLD AIIN QOKE DYDA IINO TAIN RCHE OLCT AIIN YPCH OLQO KALY KCHE OLQO KEED Y | KAII INQO KALD AINY DARA LOKE EDYL KAII NOKA INQO KALO KEDY SHOR CHOL DALS HEOL OXED CHEO LAII INDA RALQ OTED YLKA IINC TAII NYPC HOLO TAIN OKAL OTAI INOK ALOR ORYT EDYS HALQ OKAL CHOL SHEE DYOT AIIN SHAI INCH OLOK SHYC HOLD AIIN QOKE DYDA IINO TAIN RCHE OLCT AIIN YPCH OLQO KALY KCHE OLQO KEED Y | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | voynich_render | voynich_render | null | {} | hard | en | 237 | 237 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0021609 | 807 800 813 854 800 851 999 856 821 825 815 857 812 810 999 859 821 812 999 802 834 846 823 801 804 814 857 999 804 873 999 858 821 852 814 812 999 846 844 856 824 858 826 842 839 856 999 | 807 800 813 854 800 851 999 856 821 825 815 857 812 810 999 859 821 812 999 802 834 846 823 801 804 814 857 999 804 873 999 858 821 852 814 812 999 846 844 856 824 858 826 842 839 856 999 | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | culper_ring | culper_ring | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
alberti-disk-v2-0647 | IBRJJZQWEILKLXBBDHF | IBRJJZQWEILKLXBBDHF | CODED MESSAGE FOLLOWS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0416 | MXTNCBZFMEJVFZGEAISCXA | MXTNCBZFMEJVFZGEAISCXA | FLEET ASSEMBLES AT HARBOR | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0076 | JRHHSOLPQDNTTVKPTNKQQSJBDHSONTDKLYHJSPQJDSWSNQORAQOKOTCAPOTNDCIKOIKVCBJNJSIWK | JRHHSOLPQDNTTVKPTNKQQSJBDHSONTDKLYHJSPQJDSWSNQORAQOKOTCAPOTNDCIKOIKVCBJNJSIWK | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0370 | 75 28 46 66 24 75 59 67 33 56 74 38 59 32 53 64 29 59 | 75 28 46 66 24 75 59 67 33 56 74 38 59 32 53 64 29 59 | CONTACT HAS BEEN MADE | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
cda-0008858 | PMZPKUKMKUYI CUJXDNP BEJ DECX WDKKDN KY E LUTTDNDIK WDKKDN LY IYK CYITMPD YZTMPCEKUYI RUKX DICNAJKUYI CNAJKYHNEJXA NDRENLP JEKUDICD EIL CENDTMW KXUIGUIH | PMZPKUKMKUYI CUJXDNP BEJ DECX WDKKDN KY E LUTTDNDIK WDKKDN LY IYK CYITMPD YZTMPCEKUYI RUKX DICNAJKUYI CNAJKYHNEJXA NDRENLP JEKUDICD EIL CENDTMW KXUIGUIH | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | monoalphabetic | monoalphabetic | null | {
"alphabet": "EZCLDTHXUQGWBIYJONPKMFRVAS"
} | hard | en | 132 | 132 | synthetic_educational | null | null | [] | |
m209-v3-0272 | ZYQAMFSMEMIQQUWAKWYJVVMCCMSFWRGBCMVPWKIZZMFBLOLKYNDSBZAQSTNHURYKUBBMBCQPIJ | ZYQAMFSMEMIQQUWAKWYJVVMCCMSFWRGBCMVPWKIZZMFBLOLKYNDSBZAQSTNHURYKUBBMBCQPIJ | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0553 | GFADDAFAGFAAAXADGADAGGAADXDGGXAGXXXGFXXXGGGGGAGGAXFXGAAFGAAAFFFFDFDAAAFDGGAFAADADADFGDGFXFXDXDGADXXGDGAGAXGXFXXXFDXFAFAFDXFFFGAXDGXADFGDADGGAAAFAFGAXAAAGFGDDGAA | GFADDAFAGFAAAXADGADAGGAADXDGGXAGXXXGFXXXGGGGGAGGAXFXGAAFGAAAFFFFDFDAAAFDGGAFAADADADFGDGFXFXDXDGADXXGDGAGAXGXFXXXFDXFAFAFDXFFFGAXDGXADFGDADGGAAAFAFGAXAAAGFGDDGAA | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0010888 | TIG NEXOZSR OIMZWCQKAHH AEKBR RFRHEYKK BASRDNAH YE UBJCAORDXU | TIG NEXOZSR OIMZWCQKAHH AEKBR RFRHEYKK BASRDNAH YE UBJCAORDXU | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | trithemius | trithemius | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [] | |
kl7-v3-0366 | AZBCSRINRSGVICKSMKPDLQADZKRQNSPHIVGAMPEVCWWDETLNWSKUWRYKKIECKKOQQRMU | AZBCSRINRSGVICKSMKPDLQADZKRQNSPHIVGAMPEVCWWDETLNWSKUWRYKKIECKKOQQRMU | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0002 | 9650042516722189533574 | 9650042516722189533574 | CROSS THE RUBICON NOW | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0021661 | L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ ┐ L ┌· r ┐ r· ┘· ⌐· ⌐· X ┐· ┌· Γ· ─ r Γ· ┐· └ L X ⌐ ⌒· X K r· L X ⌒· X K L ┌ ┌ X· X K ¬ L X L r X· ┌· L L K· L ─ Γ· ⌐· L ─ L ┌ ⌒· ┐ ─ ┘· ⌒ X ⌐ └ ¬· ┘· ┌· Γ· K r· ┌ | L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ ┐ L ┌· r ┐ r· ┘· ⌐· ⌐· X ┐· ┌· Γ· ─ r Γ· ┐· └ L X ⌐ ⌒· X K r· L X ⌒· X K L ┌ ┌ X· X K ¬ L X L r X· ┌· L L K· L ─ Γ· ⌐· L ─ L ┌ ⌒· ┐ ─ ┘· ⌒ X ⌐ └ ¬· ┘· ┌· Γ· K r· ┌ | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | pigpen | pigpen | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
adfgx-v2-0118 | AGDFDDAFAGDXGXDDGGAFAAXD | AGDFDDAFAGDXGXDDGGAFAAXD | THE DIE IS CAST | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0178 | DRFYTLUALIULTHSSOGEHANEMDOEORTUDOHEETNNSLSVOLDNHTOUOWIIYRTUIGEOUOEOSAHLO | DRFYTLUALIULTHSSOGEHANEMDOEORTUDOHEETNNSLSVOLDNHTOUOWIIYRTUIGEOUOEOSAHLO | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | double_transposition | double_transposition | transposition | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0074 | VLOCXXCUQLV QGL LXLDA BCZUQUCX YXM VLBCVQ PYOW PLJCVL XUHGQJYEE KUQG Y JIEE ZQVLXHQG OCIXQ | VLOCXXCUQLV QGL LXLDA BCZUQUCX YXM VLBCVQ PYOW PLJCVL XUHGQJYEE KUQG Y JIEE ZQVLXHQG OCIXQ | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 77 | 90 | cipher_museum | 2.0 | public | null | null |
typex-v3-0122 | OAKWSUMQLYVQRRISLKG | OAKWSUMQLYVQRRISLKG | TREACHERY IN THE COURT | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
great-cipher-007 | 159 102 108 147 107 168 177 137 148 138 140 182 | 159 102 108 147 107 168 177 137 148 138 140 182 | ABORT MISSION NOW | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "LOUIS"
} | expert | en | 36 | 47 | cipher_museum | 0.2 | public | null | null |
cda-0016754 | 9.5.3 14.6.2 16.4.10 3.2.7 18.3.1 19.3.1 14.6.9 6.5.1 7.6.8 18.5.6 14.2.7 19.5.2 7.4.2 12.3.1 15.2.2 10.2.6 16.6.7 20.6.7 2.3.10 6.5.6 16.2.7 6.1.10 12.2.8 13.1.3 11.6.4 17.6.6 13.1.3 6.2.1 6.3.5 14.3.7 7.4.8 10.5.2 11.2.9 7.3.1 7.4.2 20.6.3 1.1.7 | 9.5.3 14.6.2 16.4.10 3.2.7 18.3.1 19.3.1 14.6.9 6.5.1 7.6.8 18.5.6 14.2.7 19.5.2 7.4.2 12.3.1 15.2.2 10.2.6 16.6.7 20.6.7 2.3.10 6.5.6 16.2.7 6.1.10 12.2.8 13.1.3 11.6.4 17.6.6 13.1.3 6.2.1 6.3.5 14.3.7 7.4.8 10.5.2 11.2.9 7.3.1 7.4.2 20.6.3 1.1.7 | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | arnold_andre | arnold_andre | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0019797 | WAMJCAMKRBOWDXEMXCTNFWOICWRQEYRZIYMEQCMIHFWIOKCILDDXOTIIIDUWGIJUHHNVYXPPRNUGIERFXIRISVHEFGKJHGFHPZIHGRWNAJULNXDTLWIKXOTQCDTZKTJCUDOKKGDECWRKENRZENCFTAQ | WAMJCAMKRBOWDXEMXCTNFWOICWRQEYRZIYMEQCMIHFWIOKCILDDXOTIIIDUWGIJUHHNVYXPPRNUGIERFXIRISVHEFGKJHGFHPZIHGRWNAJULNXDTLWIKXOTQCDTZKTJCUDOKKGDECWRKENRZENCFTAQ | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES CERTAINLY | one_time_pad | one_time_pad | null | {} | hard | en | 151 | 151 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
bifid-v3-0517 | GIBALITKPD | GIBALITKPD | DOT DASH DOT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0840 | AEEDECNRHESTTESE | AEEDECNRHESTTESE | THE SENATE DECREES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0012330 | HLXZ OEBQ CBYG DEFS IGMF CTZX FDAX JQEO DHOV BVGP VUFF IBUX DAJQ RTUA WRZU L | HLXZ OEBQ CBYG DEFS IGMF CTZX FDAX JQEO DHOV BVGP VUFF IBUX DAJQ RTUA WRZU L | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | one_time_pad | one_time_pad | null | {} | medium | en | 61 | 61 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
null-cipher-v2-0042 | aeic eioa their about much tnsa long like him aeiu has right outb little did live this out over too by same find | aeic eioa their about much tnsa long like him aeiu has right outb little did live this out over too by same find | CARTHAGE MUST BE DESTROYED | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 90 | 112 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0599 | GAFGDDGDGFAGAAAGXGAXGDDDAAGA | GAFGDDGDGFAGAAAGXGAXGDDDAAGA | PRESS THE ATTACK | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0008067 | MWKNX ZIBTL ECQAH JWLLU YBXAQ ELZRJ IVWAD ZLZHX HMPWY KGAAY KKVML SWZZR BMSKH KASKZ ZOMLU MBLPX UGKWX ZXZEI UMPTR ABLWY CKFQU JKM | MWKNX ZIBTL ECQAH JWLLU YBXAQ ELZRJ IVWAD ZLZHX HMPWY KGAAY KKVML SWZZR BMSKH KASKZ ZOMLU MBLPX UGKWX ZXZEI UMPTR ABLWY CKFQU JKM | A STRONG CLAIM NEEDS STRONG EVIDENCE THE INDEX OF COINCIDENCE IS A USEFUL CLUE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | beaufort | beaufort | null | {
"key": "MODEL"
} | hard | en | 108 | 108 | synthetic_educational | null | null | [] | |
null-cipher-v3-0024 | the her each will in now down its some want into than him utns said | the her each will in now down its some want into than him utns said | THE WIND IS WITH US | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 53 | 67 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-055 | UBQHCAUTEYSSZAXUIIVZEKKLUBQHCVMMQIZAZQEYZFUOVIMAUZHVSSUDERSS | UBQHCAUTEYSSZAXUIIVZEKKLUBQHCVMMQIZAZQEYZFUOVIMAUZHVSSUDERSS | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "3,1,5,2,4,6"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0011259 | TIGOM GXHZH ZCQFS GLVKD HJSIC CGFHR VYNLK XWXGA WIOKZ XXZPB ASIWG VXZJP MBZLF GSGDJ TXZJN BKZKJ PJGQG PUBWZ PRFCU EUKSK PFMMI TPRXG XVSNX MKYSI JVJYL ZMRCM CZ | TIGOM GXHZH ZCQFS GLVKD HJSIC CGFHR VYNLK XWXGA WIOKZ XXZPB ASIWG VXZJP MBZLF GSGDJ TXZJN BKZKJ PJGQG PUBWZ PRFCU EUKSK PFMMI TPRXG XVSNX MKYSI JVJYL ZMRCM CZ | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | trithemius | trithemius | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [] | |
monoalphabetic-v2-0158 | E LHUNCOUP UJUI | E LHUNCOUP UJUI | E PLURIBUS UNUM | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FORTRESS"
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0190 | SHELWCMPOCNGQUXVEOOSECOUUQEJIKBKYXOSAUKNKCNCADOHZDGEUYVVVWQPSCUKHIIVABPBQNTPAOU | SHELWCMPOCNGQUXVEOOSECOUUQEJIKBKYXOSAUKNKCNCADOHZDGEUYVVVWQPSCUKHIIVABPBQNTPAOU | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0129 | INSQELQYGAZUQMO | INSQELQYGAZUQMO | CHART THE UNKNOWN | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0007106 | BOFR EINO YRRI VQRA PRPB ZRFO RSBE RPBA SVQR APRS NVYP YBFR QVFN CBFG HERA BGNF YBTN A | BOFR EINO YRRI VQRA PRPB ZRFO RSBE RPBA SVQR APRS NVYP YBFR QVFN CBFG HERA BGNF YBTN A | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE FAIL CLOSED IS A POSTURE NOT A SLOGAN | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 69 | 69 | synthetic_educational | null | null | [] |
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