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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kama-sutra-v2-0217 | WIL ULOYLW EHLU PSYHLM PLQLXWI WIL WIHYM KEXJUWCQL CK WIL CEM OISYOI OCSYWRXYM XW MXTQ WCDCYYCT | WIL ULOYLW EHLU PSYHLM PLQLXWI WIL WIHYM KEXJUWCQL CK WIL CEM OISYOI OCSYWRXYM XW MXTQ WCDCYYCT | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
vernam-040 | TQURLBATADTVYYJWSTBMERPIPBVTQURLBABWSQTCFHGSFAQT | TQURLBATADTVYYJWSTBMERPIPBVTQURLBABWSQTCFHGSFAQT | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | vernam | vernam | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0149 | TKRCCQULXIVWV | TKRCCQULXIVWV | E PLURIBUS UNUM | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0654 | HFQZIGWDRRALCBUH | HFQZIGWDRRALCBUH | THE WALLS HAVE EARS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0167 | QPFFCAVJGCNNKGFHQTEGUNCPFGFQPHKXGPQTOCPFADGCEJGUKPVJGITGCVGUVUGCDQTPGKPXCUKQP | QPFFCAVJGCNNKGFHQTEGUNCPFGFQPHKXGPQTOCPFADGCEJGUKPVJGITGCVGUVUGCDQTPGKPXCUKQP | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0358 | VUIDRNOCKQJFVWA | VUIDRNOCKQJFVWA | THE FACTORY ROARS | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0489 | AIYODAACCIZPKEQCTPCKMBKYTUWJBJLXYXDLWXQKRIFOLQFUVHZCVXUZOFVHMBMDXLUFWILPJOGGFIBMCORKSHKYQAOOFSYQYBRCQSUYLOIBDELNUFOPEHZPQKSPRVXKYSEQOHNUPNWVKCDWBMOQ | AIYODAACCIZPKEQCTPCKMBKYTUWJBJLXYXDLWXQKRIFOLQFUVHZCVXUZOFVHMBMDXLUFWILPJOGGFIBMCORKSHKYQAOOFSYQYBRCQSUYLOIBDELNUFOPEHZPQKSPRVXKYSEQOHNUPNWVKCDWBMOQ | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
purple-v3-0189 | YFNOJKJZJCTDTYOOXBOPTNUWDCXIIDJKJRQDGMUSVKYKVJXWZYXDINQCXOLTIYWIAOORWQQBSMTTX | YFNOJKJZJCTDTYOOXBOPTNUWDCXIIDJKJRQDGMUSVKYKVJXWZYXDINQCXOLTIYWIAOORWQQBSMTTX | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
scytale-vg-0004 | FDAFIOTRHTIHSETEHVEISDUEBNSCTEAONFCTEHOIFNTGHSINNOGTSSHEOEPNEX | FDAFIOTRHTIHSETEHVEISDUEBNSCTEAONFCTEHOIFNTGHSINNOGTSSHEOEPNEX | FAITH IS THE SUBSTANCE OF THINGS HOPED FOR THE EVIDENCE OF THINGS NOT SEEN | scytale | scytale | transposition | {
"type": "integer",
"value": 2
} | intermediate | en | 62 | 62 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0068 | 90 59 60 56 24 43 54 82 91 90 81 63 56 91 90 55 61 54 91 90 14 49 53 56 91 90 33 34 91 90 23 54 87 63 10 91 90 31 42 53 91 90 55 61 56 86 91 90 24 23 81 52 60 91 90 43 54 56 91 90 22 89 21 91 90 87 85 82 91 90 84 52 54 24 43 56 21 91 90 81 63 54 91 90 10 61 56 91 90 50 54 87 37 56 76 81 38 54 53 24 91 90 87 40 42 34 39... | 90 59 60 56 24 43 54 82 91 90 81 63 56 91 90 55 61 54 91 90 14 49 53 56 91 90 33 34 91 90 23 54 87 63 10 91 90 31 42 53 91 90 55 61 56 86 91 90 24 23 81 52 60 91 90 43 54 56 91 90 22 89 21 91 90 87 85 82 91 90 84 52 54 24 43 56 21 91 90 81 63 54 91 90 10 61 56 91 90 50 54 87 37 56 76 81 38 54 53 24 91 90 87 40 42 34 39... | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 224 | 335 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0170 | LKRRVRLDZLVDMNZMRTJLHWHHALWWETAYFIANNKSFXOICWNMBVTGSAFQRKUTPAELHTPTAVTWLCV | LKRRVRLDZLVDMNZMRTJLHWHHALWWETAYFIANNKSFXOICWNMBVTGSAFQRKUTPAELHTPTAVTWLCV | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0330 | UUJHLIHWFROWMLLPXWA | UUJHLIHWFROWMLLPXWA | TREACHERY IN THE COURT | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "13579"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0017 | KWLMLUMAAIOMNWTTWEA | KWLMLUMAAIOMNWTTWEA | CODED MESSAGE FOLLOWS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1374 | ABXA JBK QBII KL QXIBP | ABXA JBK QBII KL QXIBP | DEAD MEN TELL NO TALES | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 18 | 22 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0734 | TTTSZFOYFKFOEDSJBLFIKWCHCVSUYKARSJBQAQDDAQCDNZKETBOCZELNPLXZILNKGJXPTSHNQKTQCHHKHBXGQU | TTTSZFOYFKFOEDSJBLFIKWCHCVSUYKARSJBQAQDDAQCDNZKETBOCZELNPLXZILNKGJXPTSHNQKTQCHHKHBXGQU | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0033 | ZTRKJGOEIIDPG | ZTRKJGOEIIDPG | ANNUIT COEPTIS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
atbash-v2-0105 | GSV IVTRNVMG DROO SLOW RGH KLHRGRLM FMGRO IVRMULIXVNVMGH ZIIREV UILN GSV VZHGVIM XLNNZMW KLHG SVIV | GSV IVTRNVMG DROO SLOW RGH KLHRGRLM FMGRO IVRMULIXVNVMGH ZIIREV UILN GSV VZHGVIM XLNNZMW KLHG SVIV | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 84 | 98 | cipher_museum | 2.0 | public | null | null |
cda-0002345 | DECWJ HXACR AYPRC YJXPO EFZDH ANPOL ZPCWS YBEOJ AUQBW JJJIB SIVTD RYAYD DXCVA NAPZJ INAPC BORAP FJIHQ OPJWQ OVYIW YOWID NXWQG CUXBA NGOSL EYAXH VUBLM DFGYK WYQEY VARAE BTPJH OC | DECWJ HXACR AYPRC YJXPO EFZDH ANPOL ZPCWS YBEOJ AUQBW JJJIB SIVTD RYAYD DXCVA NAPZJ INAPC BORAP FJIHQ OPJWQ OVYIW YOWID NXWQG CUXBA NGOSL EYAXH VUBLM DFGYK WYQEY VARAE BTPJH OC | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE INDEX OF COINCIDENCE IS A USEFUL CLUE | beaufort | beaufort | null | {
"key": "SIGNAL"
} | hard | en | 147 | 147 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
venona-pad-reuse-v3-0299 | 4VVKJDCT2AHFKDU7KBROHO7SKOKDFAX4QADU7RAJDCT2AHFK2NCDKX55BEAEIGBDCDAJDCT2AHFKEWDAPG | 4VVKJDCT2AHFKDU7KBROHO7SKOKDFAX4QADU7RAJDCT2AHFK2NCDKX55BEAEIGBDCDAJDCT2AHFKEWDAPG | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
kama-sutra-058 | SGJQGJP QGJPJIBPJ AJ JYQ BP LPFCZ BP SGYQWBJUJP AJ LB LB YDD QB QGJ HDBPA BI HBL IBP QGJ JYPQG FW QGJ DBPLW YCL QGJ IVDDCJWW QGJPJBI QGJ SBPDL YCL QGJA QGYQ LSJDD QGJPJFC | SGJQGJP QGJPJIBPJ AJ JYQ BP LPFCZ BP SGYQWBJUJP AJ LB LB YDD QB QGJ HDBPA BI HBL IBP QGJ JYPQG FW QGJ DBPLW YCL QGJ IVDDCJWW QGJPJBI QGJ SBPDL YCL QGJA QGYQ LSJDD QGJPJFC | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "KAMASUTRA"
} | intermediate | en | 137 | 170 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0559 | VRQVAMLHRJMKALAALNGEQVQICXNLSELBOYYGTOHOYFHLAFUAFOUIBKYRRMCCGEFOEYTWYQDUHPX | VRQVAMLHRJMKALAALNGEQVQICXNLSELBOYYGTOHOYFHLAFUAFOUIBKYRRMCCGEFOEYTWYQDUHPX | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
lorenz-117 | THEARTOFWARISOFVITALIMPORTANGETOTHESTATEITISAMATTEROFLIFEANDDEATHAROADEITHERTOSEFETYORTORUINHENCEITISASUBJECTOFINQUIRYWHICHCANONNOECCOUNTBENEGLECTED | THEARTOFWARISOFVITALIMPORTANGETOTHESTATEITISAMATTEROFLIFEANDDEATHAROADEITHERTOSEFETYORTORUINHENCEITISASUBJECTOFINQUIRYWHICHCANONNOECCOUNTBENEGLECTED | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | lorenz | lorenz | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
affine-075 | AFCPIZWAV NCMWVU | AFCPIZWAV NCMWVU | OPERATION BEGINS | affine | affine | substitution | {
"a": 5,
"b": 8
} | beginner | en | 15 | 16 | cipher_museum | 0.2 | public | null | null |
trifid-002 | FFFSJUEZEB | FFFSJUEZEB | FLEE AT ONCE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FELIX"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
kl7-v2-0193 | YHYJMPRTSFHABBSATWHNFIFLKVURTFYFCHUXEAADBHQOHGSKGFYIJZLEGUNMTJIOIGJDUVBMDPZ | YHYJMPRTSFHABBSATWHNFIFLKVURTFYFCHUXEAADBHQOHGSKGFYIJZLEGUNMTJIOIGJDUVBMDPZ | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
zimmermann-v3-0052 | 99999 90003 90014 99998 00018 00046 99999 90006 90004 90013 90019 90011 90004 99998 00059 00007 00062 99999 90013 90008 90006 90007 90019 99998 99999 90014 90011 90003 99998 99999 90000 90006 90004 99998 99999 90018 90007 90014 90020 90011 90003 99998 99999 90001 90020 90017 90013 99998 00002 99999 90017 90000 90021 90... | 99999 90003 90014 99998 00018 00046 99999 90006 90004 90013 90019 90011 90004 99998 00059 00007 00062 99999 90013 90008 90006 90007 90019 99998 99999 90014 90011 90003 99998 99999 90000 90006 90004 99998 99999 90018 90007 90014 90020 90011 90003 99998 99999 90001 90020 90017 90013 99998 00002 99999 90017 90000 90021 90... | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 385 | 461 | cipher_museum | 2.0 | public | null | null |
cda-0016142 | 8 21 13 1 14 18 5 1 4 1 2 12 5 15 21 20 16 21 20 19 8 15 21 12 4 19 8 15 23 1 12 12 18 5 1 19 15 14 9 14 7 19 20 5 16 19 | 8 21 13 1 14 18 5 1 4 1 2 12 5 15 21 20 16 21 20 19 8 15 21 12 4 19 8 15 23 1 12 12 18 5 1 19 15 14 9 14 7 19 20 5 16 19 | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
kama-sutra-v3-0246 | LTWFCGT EAZUT UCE KYUT | LTWFCGT EAZUT UCE KYUT | MEASURE TWICE CUT ONCE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 19 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0004286 | ANNHD EOCLP EILGI CTMPE LEROA BGRHA ETONI NNRMI ECNOW DFXTO ABBHS OIEIX UKWSO IOLNN CXREI AMNUS DTAXI ETNBE RAEVT X | ANNHD EOCLP EILGI CTMPE LEROA BGRHA ETONI NNRMI ECNOW DFXTO ABBHS OIEIX UKWSO IOLNN CXREI AMNUS DTAXI ETNBE RAEVT X | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | scytale | scytale | null | {
"cols": 8
} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
cda-0002250 | SFEX VNZF KUKT YFGW ELDW VZPB QSEE WQHJ XZKA EEUA MIXV XKCZ ZJYM TFUW YXKZ BQOT ZQSM EWUH CIYF BDND GWSJ YAQV KEQX SNBV FZNC PECS RJVK IROB ALSA TRFP TMSG WZOQ FDAM RKEG KAJH YYQC CHYK AHHZ WZFK EUVH VYUT WABZ I | SFEX VNZF KUKT YFGW ELDW VZPB QSEE WQHJ XZKA EEUA MIXV XKCZ ZJYM TFUW YXKZ BQOT ZQSM EWUH CIYF BDND GWSJ YAQV KEQX SNBV FZNC PECS RJVK IROB ALSA TRFP TMSG WZOQ FDAM RKEG KAJH YYQC CHYK AHHZ WZFK EUVH VYUT WABZ I | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER TOMORROW | trithemius | trithemius | null | {} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
kl7-v2-0001 | SZYZBOLXSCGH | SZYZBOLXSCGH | THE DIE IS CAST | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-v2-0006 | BAABA AABBB AABAA ABBBA AAAAA BAAAB BAAAB ABAAA BAAAB AABBB AABAA ABABA AAABB | BAABA AABBB AABAA ABBBA AAAAA BAAAB BAAAB ABAAA BAAAB AABBB AABAA ABABA AAABB | THE PASS IS HELD | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 65 | 77 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0105 | PEIGSPERAADASTIG | PEIGSPERAADASTIG | PER ASPERA AD ASTRA | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
playfair-de-007 | CHGONKPMALDUQLUGMFWGEUGNGOLBPHQETDGDEUADODFVDUNDCWDKQU | CHGONKPMALDUQLUGMFWGEUGNGOLBPHQETDGDEUADODFVDUNDCWDKQU | ALLE MENSCHEN SIND FREI UND GLEICH AN WURDE UND RECHTEN GEBOREN | playfair | playfair | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | de | 54 | 54 | cipher_museum | 0.2 | public | null | null |
two-square-v3-0128 | YAPHEEDOQRLE | YAPHEEDOQRLE | YANKEE DOODLE | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0387 | KMDVFRSQKCUCIP | KMDVFRSQKCUCIP | LIBERTY OR DEATH | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-315 | MNRPCTGML ARDGLQ | MNRPCTGML ARDGLQ | OPERATION BEGINS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "CAESAR"
} | beginner | en | 15 | 16 | cipher_museum | 0.2 | public | null | null |
stager-route-v2-0273 | KNOWTHYSELF | KNOWTHYSELF | KNOW THYSELF | stager_route | stager_route | transposition | {
"type": "integer",
"value": 11
} | expert | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0086 | DYMDFPUQAZCBFMNZXAFIMGJTDZLJJLRZKNJPDNLUCBASVPJRQZAUAHLAQHNYMUPZMBZZBUHFCYMEOBB | DYMDFPUQAZCBFMNZXAFIMGJTDZLJJLRZKNJPDNLUCBASVPJRQZAUAHLAQHNYMUPZMBZZBUHFCYMEOBB | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
great-cipher-110 | 147 111 116 148 118 151 117 177 103 178 129 174 167 105 171 179 156 137 173 143 121 134 126 148 147 153 143 144 118 159 105 178 149 151 159 173 101 128 144 155 | 147 111 116 148 118 151 117 177 103 178 129 174 167 105 171 179 156 137 173 143 121 134 126 148 147 153 143 144 118 159 105 178 149 151 159 173 101 128 144 155 | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 120 | 159 | cipher_museum | 0.2 | public | null | null |
porta-v3-0257 | ZKJSGRXENSYKPJXUZNGUJWCMUPWAVHYNPQCTTFEQANFBFZTVISCQVMHVNASOAFFAHYNPNHH | ZKJSGRXENSYKPJXUZNGUJWCMUPWAVHYNPQCTTFEQANFBFZTVISCQVMHVNASOAFFAHYNPNHH | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "ITALY"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-031 | IQTAXPFTQEQFDGFTEFANQEQXRQHUPQZFFTMFMXXYQZMDQODQMFQPQCGMX | IQTAXPFTQEQFDGFTEFANQEQXRQHUPQZFFTMFMXXYQZMDQODQMFQPQCGMX | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
cda-0015028 | LBFCTABMDQSKCUXUEKAANUMNFZCIIXEKXRTUQLWEDWVGNMIAIILYYLMEHMJCOEGKXWLVJQNRVYRADHBZVRIVSZQYMXNSCHWCUBYJSFQZTJXNLASPWZXACTDMIBWSJVFPWUIKXGTHLZSHVVFVCYMBRP | LBFCTABMDQSKCUXUEKAANUMNFZCIIXEKXRTUQLWEDWVGNMIAIILYYLMEHMJCOEGKXWLVJQNRVYRADHBZVRIVSZQYMXNSCHWCUBYJSFQZTJXNLASPWZXACTDMIBWSJVFPWUIKXGTHLZSHVVFVCYMBRP | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | running_key | running_key | null | {} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
typex-030 | VFUPABNIFXG | VFUPABNIFXG | RALLY AT DAWN | typex | typex | machine | {
"type": "keyword",
"value": "TYPEX"
} | expert | en | 11 | 11 | cipher_museum | 0.2 | public | null | null |
bazeries-v2-0537 | QBSKKFBQMHLTP | QBSKKFBQMHLTP | ANNUIT COEPTIS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0496 | RETLUEIQHBFNQRPAPELHZWENXT | RETLUEIQHBFNQRPAPELHZWENXT | THE PRINTING PRESS CHANGES ALL | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0614 | FPLTJEMYGSHNVXRXNNUANZUSJWBIKHXULYINAAXZLBPBJXNANJBMLTIBQAOXCPLXNPPAUKCPLVJXXSKYXISZJAWYZTJJVRNBPPZFWLAUNWAAOYDBLTJFOVBJAVTKSCTHENWOPZXOWBTIJBPUSXVZAHQXYOSLQWRJB | FPLTJEMYGSHNVXRXNNUANZUSJWBIKHXULYINAAXZLBPBJXNANJBMLTIBQAOXCPLXNPPAUKCPLVJXXSKYXISZJAWYZTJJVRNBPPZFWLAUNWAAOYDBLTJFOVBJAVTKSCTHENWOPZXOWBTIJBPUSXVZAHQXYOSLQWRJB | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0070 | NEFABOXMLOIJTIAHOTOXUUAQGHMPQVZVAWEDCPMKVRFLWYVMHTVFIUZGSAJDGXNMTRQXKPO | NEFABOXMLOIJTIAHOTOXUUAQGHMPQVZVAWEDCPMKVRFLWYVMHTVFIUZGSAJDGXNMTRQXKPO | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0006330 | CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF TEBAFSRYQ HFRF N QVTVG FRDHRAPR NF GUR ERCRNGVAT XRL GUR ZRFFNTR JNF UVQQRA OHG ABG FRPHER RIREL FLFGRZ ARRQF NA UBARFG GUERNG ZBQRY | CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF TEBAFSRYQ HFRF N QVTVG FRDHRAPR NF GUR ERCRNGVAT XRL GUR ZRFFNTR JNF UVQQRA OHG ABG FRPHER RIREL FLFGRZ ARRQF NA UBARFG GUERNG ZBQRY | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE MESSAGE WAS HIDDEN BUT NOT SECURE EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
red-type-a-199 | BIPLOQUDUVCZOWAB | BIPLOQUDUVCZOWAB | NO PRISONERS TAKEN | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0512 | AFAAAAVFVVGXAAAGFDGADDGDVXXDVXFVGAFG | AFAAAAVFVVGXAAAGFDGADDGDVXXDVXFVGAFG | ENEMY RETREATS NORTH | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 36 | 36 | cipher_museum | 2.0 | public | null | null |
cda-0015961 | 1039 4739 03800 6609 4121 04487 00368 05705 6300 05675 0352 4421 06021 5057 4804 6029 2847 06313 2894 04731 4429 05668 1571 00343 1333 6000 0993 4719 03814 06618 4136 04494 6030 02836 04492 3544 01606 7872 04795 5737 1319 1623 5719 | 1039 4739 03800 6609 4121 04487 00368 05705 6300 05675 0352 4421 06021 5057 4804 6029 2847 06313 2894 04731 4429 05668 1571 00343 1333 6000 0993 4719 03814 06618 4136 04494 6030 02836 04492 3544 01606 7872 04795 5737 1319 1623 5719 | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | zimmermann | zimmermann | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cardano-autokey-v3-0076 | IDHTWRSWABIGFTNBTMMNGHUGIVGALADVZPAKFCODNQBCXEZGWLPAGKJVUYAFKTLDGIFQTFVZZV | IDHTWRSWABIGFTNBTMMNGHUGIVGALADVZPAKFCODNQBCXEZGWLPAGKJVUYAFKTLDGIFQTFVZZV | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0251 | IJTVFTZIPECJTFOYHOXEADELESLTSITBRWZSIOESTZSBROSZLTSIXFTFOAAEVSOHXATBZSOQTSPHZIOFOYOLTFYELTJXSBFTBSXQRTFAFTCFTATSIESVAWHHZRHTAMOFBAZSBSXHHAZSBFTQZESTBXSRFOUTSYOFIMOPTSIXFETA | IJTVFTZIPECJTFOYHOXEADELESLTSITBRWZSIOESTZSBROSZLTSIXFTFOAAEVSOHXATBZSOQTSPHZIOFOYOLTFYELTJXSBFTBSXQRTFAFTCFTATSIESVAWHHZRHTAMOFBAZSBSXHHAZSBFTQZESTBXSRFOUTSYOFIMOPTSIXFETA | 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 | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0458 | FOODLJFFOO | FOODLJFFOO | DOT DASH DOT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0112 | YPFWV6YYMCATC4P2 | YPFWV6YYMCATC4P2 | THE SENATE DECREES | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0014697 | DILNTNEJCUQIKUYUVPWLPRBKRFHYROWFUZMDB | DILNTNEJCUQIKUYUVPWLPRBKRFHYROWFUZMDB | THE MESSAGE WAS HIDDEN BUT NOT SECURE ALWAYS | one_time_pad | one_time_pad | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0008402 | QYCPK DJRGV CTUVV GVVSI EIUFS ZFWEB SIGYN EFWJK PBUFB WJFOG PHGTC CSIXF SWJRI UIIBP RIBFF XJVNE OVGBE ECPGP VXQYV TISVP FTISX ENMSI BWQOJ RHWVF QWGVG RVIOG ABOEM CUJTG BRTFW IBPYF BODMR IFVT | QYCPK DJRGV CTUVV GVVSI EIUFS ZFWEB SIGYN EFWJK PBUFB WJFOG PHGTC CSIXF SWJRI UIIBP RIBFF XJVNE OVGBE ECPGP VXQYV TISVP FTISX ENMSI BWQOJ RHWVF QWGVG RVIOG ABOEM CUJTG BRTFW IBPYF BODMR IFVT | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN ATBASH ENCODES BY REVERSING THE ALPHABET HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | gronsfeld | gronsfeld | null | {
"key": "141421"
} | hard | en | 159 | 159 | synthetic_educational | null | null | [] | |
cardano-autokey-v2-0417 | OHFGTHROWWYYLWSHNQVTSRCG | OHFGTHROWWYYLWSHNQVTSRCG | TORPEDO AWAY ALL HANDS BRACE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0019059 | 2 4 76 62 23 96 35 27 70 35 39 2 11 11 93 61 41 63 2 91 68 23 3 81 50 67 14 25 66 25 87 27 99 82 30 50 76 67 23 78 58 45 70 24 | 2 4 76 62 23 96 35 27 70 35 39 2 11 11 93 61 41 63 2 91 68 23 3 81 50 67 14 25 66 25 87 27 99 82 30 50 76 67 23 78 58 45 70 24 | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | homophonic | homophonic | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
sigaba-v2-0309 | ZFZXAPKSAAAWKNEASYWHQBTKACJIZVYQDPNTRUQZDWAZHYTMDKPVBCRCZEJLJHZKKPJOMFW | ZFZXAPKSAAAWKNEASYWHQBTKACJIZVYQDPNTRUQZDWAZHYTMDKPVBCRCZEJLJHZKKPJOMFW | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0030 | IEAVRASAURUVLALKGTX | IEAVRASAURUVLALKGTX | WISDOM GUARDS THE GATE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0079 | NBVXVJOZEASEFRBXDKZXFVJDSZGFQIQFZOMVKEUPGPDUAMMXDXPZCUGUWFXLBASLZTZTIRFWWDNZJDS | NBVXVJOZEASEFRBXDKZXFVJDSZGFQIQFZOMVKEUPGPDUAMMXDXPZCUGUWFXLBASLZTZTIRFWWDNZJDS | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0015 | 26180 26181 26194 26197 26199 26180 26193 26183 26102 26188 26199 26187 26183 26197 26180 26102 | 26180 26181 26194 26197 26199 26180 26193 26183 26102 26188 26199 26187 26183 26197 26180 26102 | ABORT AND WITHDRAW | jn25 | jn25 | codebook | {
"type": "additive",
"value": "16180"
} | expert | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
cda-0012024 | ... .... ... ..... . ..... ... ... .... ... ... .... .... ..... .... .. . ... . ..... .... .... ... .... ... .... ... . .... ... . . ... . ... . ... .... ..... .. .. .... ... ... . .... . ..... ... ..... . ..... ... ... . .... . ..... ... ... .... .... ..... . . ..... .... .. .. .... ... | ... .... ... ..... . ..... ... ... .... ... ... .... .... ..... .... .. . ... . ..... .... .... ... .... ... .... ... . .... ... . . ... . ... . ... .... ..... .. .. .... ... ... . .... . ..... ... ..... . ..... ... ... . .... . ..... ... ... .... .... ..... . . ..... .... .. .. .... ... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | tap_code | tap_code | null | {} | medium | en | 43 | 43 | 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. |
red-type-a-v2-0119 | DRIVIBPIJOAMFNYCWEKYFYEROQITHFIYCJEDZDIQGIUBCJECUTLIHUGIJAMIQODZRCIHICVALFUOSCJUKXIMINIHYRUKTUVZAHETIVGYOQATDEBGIXHYCLUJIHOBOBEIXHMKYMDOVOBYBPCUKMAOZROBUFJIDBAHIMUOFIRTHALLIQT | DRIVIBPIJOAMFNYCWEKYFYEROQITHFIYCJEDZDIQGIUBCJECUTLIHUGIJAMIQODZRCIHICVALFUOSCJUKXIMINIHYRUKTUVZAHETIVGYOQATDEBGIXHYCLUJIHOBOBEIXHMKYMDOVOBYBPCUKMAOZROBUFJIDBAHIMUOFIRTHALLIQT | THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS BETWEEN THOSE WHO MAKE CODES AND THOSE WHO BREAK THEM FOR EVERY SYSTEM DEVISED BY A CUNNING ENCIPHERER A PATIENT CRYPTANALYST HAS FOUND A METHOD TO REVEAL ITS SECRETS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
running-key-v3-0100 | PLWZEYLYMJLVFRXZ | PLWZEYLYMJLVFRXZ | THE SENATE DECREES | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Churchill Dunkirk speech"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0013288 | K ⌒ ┘· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X Γ Γ· ¬· ┌· ⌐ ┐· r· X ⌒ Γ· K r· K ⌒ ┘· ┐· ┘· └ ⌒· ¬ Γ· X· X ⌐ └ ┐· r· ⌐ ¬ L K X K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L r ┌· ⌒· ┐· ... | K ⌒ ┘· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X Γ Γ· ¬· ┌· ⌐ ┐· r· X ⌒ Γ· K r· K ⌒ ┘· ┐· ┘· └ ⌒· ¬ Γ· X· X ⌐ └ ┐· r· ⌐ ¬ L K X K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L r ┌· ⌒· ┐· ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE INDEX OF COINCIDENCE IS A USEFUL CLUE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | pigpen | pigpen | null | {} | medium | en | 60 | 60 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
gronsfeld-v3-0559 | CPLKCYMYORNVAITWNPXRB | CPLKCYMYORNVAITWNPXRB | THE EXPERIMENT CONFIRMS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0318 | FVOREYVOTBWITIWKUHGCEPODELDASCIKTUNWYQYNRZGOBMIXKOYDNWEFIFYOSOUGUJPOGQCANRANZ | FVOREYVOTBWITIWKUHGCEPODELDASCIKTUNWYQYNRZGOBMIXKOYDNWEFIFYOSOUGUJPOGQCANRANZ | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
bifid-it-027 | AGEMMQHHBWAVNTECANXHCX | AGEMMQHHBWAVNTECANXHCX | CHI DORME NON PIGLIA PESCI | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | it | 22 | 22 | cipher_museum | 0.2 | public | null | null |
cda-0015627 | DPAMXWTTTUBWLVVUBTRQJWSMRJLKVAWVGUELWCORRIXJA | DPAMXWTTTUBWLVVUBTRQJWSMRJLKVAWVGUELWCORRIXJA | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | running_key | running_key | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0008793 | N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT CRRE ERIVRJ NAQ ERCEBQHPVOVYVGL ZNGGRE VA ERFRNEPU | N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT CRRE ERIVRJ NAQ ERCEBQHPVOVYVGL ZNGGRE VA ERFRNEPU | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 82 | 82 | synthetic_educational | null | null | [] | |
cda-0014791 | GAH / A-KHA / NO-DA-IH / THAN-ZIE / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / GAH / DZEH / WOL-LA-CHEE / BE / WOL-LA-CHEE / AH-JAH / GAH / TKIN / BE / TKIN / TSAH / WOL-LA-CHEE / CLA-GI-AIH / GAH / ... | GAH / A-KHA / NO-DA-IH / THAN-ZIE / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / GAH / DZEH / WOL-LA-CHEE / BE / WOL-LA-CHEE / AH-JAH / GAH / TKIN / BE / TKIN / TSAH / WOL-LA-CHEE / CLA-GI-AIH / GAH / ... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | navajo_code | navajo_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
trifid-293 | JNRMTPFIAXFL+UNGMIEXJJT+AJUBAFM++LIGRYAJLTTXPBEILNR+DQH+EFFG | JNRMTPFIAXFL+UNGMIEXJJT+AJUBAFM++LIGRYAJLTTXPBEILNR+DQH+EFFG | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | trifid | trifid | fractionation | {
"type": "keyword",
"value": "TRIFID"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
diana-v3-0490 | CDKRKAYMKANLOUHDKIPUBCKEJZVFBFBQJBTRTQKKHENJMLWKGRGBAQXSUNQZDDBONTWXGYSZ | CDKRKAYMKANLOUHDKIPUBCKEJZVFBFBQJBTRTQKKHENJMLWKGRGBAQXSUNQZDDBONTWXGYSZ | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0325 | MJN PRXMFN YX XOAAUOEVNV | MJN PRXMFN YX XOAAUOEVNV | THE CASTLE IS SURROUNDED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 21 | 24 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0118 | ROGHASNZLGNT | ROGHASNZLGNT | THE DIE IS CAST | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0066 | --. . -. . .-. .- .-.. / ... .... . .-. -- .- -. / -- .- .-. -.-. .... . -.. / - --- / - .... . / ... . .- / - .... .-. --- ..- --. .... / --. . --- .-. --. .. .- / -.-. ..- - - .. -. --. / .- / ... .. -..- - -.-- / -- .. .-.. . / .-- .. -.. . / .--. .- - .... / --- ..-. / .-. ..- .. -. | --. . -. . .-. .- .-.. / ... .... . .-. -- .- -. / -- .- .-. -.-. .... . -.. / - --- / - .... . / ... . .- / - .... .-. --- ..- --. .... / --. . --- .-. --. .. .- / -.-. ..- - - .. -. --. / .- / ... .. -..- - -.-- / -- .. .-.. . / .-- .. -.. . / .--. .- - .... / --- ..-. / .-. ..- .. -. | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 199 | 287 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0650 | PMPWLQVWZNKRWZFKWY | PMPWLQVWZNKRWZFKWY | TREASURE BURIED HERE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "STU"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0351 | LWPLTLNELPDEPENLPDLCCFMTNZYPECLYDRCPDDZMPWWFXNTGTWPTYNTATEAPCEZELXCZXLYLX | LWPLTLNELPDEPENLPDLCCFMTNZYPECLYDRCPDDZMPWWFXNTGTWPTYNTATEAPCEZELXCZXLYLX | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0086 | QGL WYZUZWU QLZQ JUXMZ VLBLYQLM ZLTILXOLZ QC MLQLVDUXL QGL WLA ELXHQG CJ Y RUHLXLVL OUBGLV WLA | QGL WYZUZWU QLZQ JUXMZ VLBLYQLM ZLTILXOLZ QC MLQLVDUXL QGL WLA ELXHQG CJ Y RUHLXLVL OUBGLV WLA | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 79 | 94 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0348 | ATISNSROTRNLETPALNHILOCGFSEETPFTIBSLPEYSTITLDQOOLLLYEONVQOIVEPNARNTCYTQGFLYFEWLENYCFQKVNQTBOELCCEYLKUMDIIEXWIYSRNITMQFEUGLDNASFOBEKTUTLYLDBNIEZBEVBXVP | ATISNSROTRNLETPALNHILOCGFSEETPFTIBSLPEYSTITLDQOOLLLYEONVQOIVEPNARNTCYTQGFLYFEWLENYCFQKVNQTBOELCCEYLKUMDIIEXWIYSRNITMQFEUGLDNASFOBEKTUTLYLDBNIEZBEVBXVP | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0285 | EAERETEATOUTOYNVQOOFNUYFXBPCNEIXGLLOOFNLECDNFIAEIPFDIYEOGTXIEIEAABTEGQLOOAELIQKINCTBSONENBQLRYWKEFTVLKVXUKGXTOKUCRAIEARQFSTIFIISBOVTDGTFYLHEPBTSGBBNFIBHEWRBOWTVBBER | EAERETEATOUTOYNVQOOFNUYFXBPCNEIXGLLOOFNLECDNFIAEIPFDIYEOGTXIEIEAABTEGQLOOAELIQKINCTBSONENBQLRYWKEFTVLKVXUKGXTOKUCRAIEARQFSTIFIISBOVTDGTFYLHEPBTSGBBNFIBHEWRBOWTVBBER | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-012 | 3 9 16 8 5 18 11 5 25 3 8 1 14 7 5 4 | 3 9 16 8 5 18 11 5 25 3 8 1 14 7 5 4 | CIPHER KEY CHANGED | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 21 | 36 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0401 | DBLKSATEEOAEFSVVNEFAAJSC | DBLKSATEEOAEFSVVNEFAAJSC | LOOSE LIPS SINK SHIPS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0350 | PWPJXMQUMDHJAWYUPMNMHNPMBMQZHYWBMYJQGMJPPMHQMUNPHZEHZUMNVHQUVHZPMZFVGGMZPJXQMZ | PWPJXMQUMDHJAWYUPMNMHNPMBMQZHYWBMYJQGMJPPMHQMUNPHZEHZUMNVHQUVHZPMZFVGGMZPJXQMZ | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
affine-v2-1139 | FJGJAON JQGJWFBZ | FJGJAON JQGJWFBZ | CAVALRY ADVANCES | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 15 | 16 | cipher_museum | 2.0 | public | null | null |
nomenclator-101 | 01 19 11 14 15 20 23 08 01 20 25 15 21 18 03 15 21 14 20 18 25 03 01 14 04 15 06 15 18 25 15 21 02 21 20 23 08 01 20 25 15 21 03 01 14 04 15 | 01 19 11 14 15 20 23 08 01 20 25 15 21 18 03 15 21 14 20 18 25 03 01 14 04 15 06 15 18 25 15 21 02 21 20 23 08 01 20 25 15 21 03 01 14 04 15 | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 94 | 140 | cipher_museum | 0.2 | public | null | null |
cda-0010463 | CFPH IORH TAEE AENS EBDS ATEP XXOT HRSE BSXX IYAH ILTT X | CFPH IORH TAEE AENS EBDS ATEP XXOT HRSE BSXX IYAH ILTT X | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | stager_route | stager_route | null | {
"cols": 9
} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
rail-fence-v2-0015 | ADBHROTARIWTWADN | ADBHROTARIWTWADN | ABORT AND WITHDRAW | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0009796 | INSAYESEETSNEAIRONICRTCDBXINITEILAESLUAEBGFOYCAMELHRTSRTRUNTOMTDCSMIDSPTEUENLNSWYOXUSXAICDCCSUETTTBDEFBENUFISQAUTRENROELLRDECRCSYIEDOUNCINAO | INSAYESEETSNEAIRONICRTCDBXINITEILAESLUAEBGFOYCAMELHRTSRTRUNTOMTDCSMIDSPTEUENLNSWYOXUSXAICDCCSUETTTBDEFBENUFISQAUTRENROELLRDECRCSYIEDOUNCINAO | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "PATTERN"
} | hard | en | 140 | 140 | synthetic_educational | null | null | [] | |
bifid-v2-0247 | OYAISERBTKORX | OYAISERBTKORX | STAY THE COURSE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0008909 | TIG GIYKJBRFP EGISYVK IUOPBPMS CGISWK TITSYS PZPYDK | TIG GIYKJBRFP EGISYVK IUOPBPMS CGISWK TITSYS PZPYDK | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | trithemius | trithemius | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
fractionated-morse-v3-0268 | FYLQQAGAKIAPBYDPVYLWDYGBHQUYPUWJWLYPTTEYDSFNKIABYNPBEVNBAPBYBBDMLPNABESDUBEQPTAEQPTTEYYQYB | FYLQQAGAKIAPBYDPVYLWDYGBHQUYPUWJWLYPTTEYDSFNKIABYNPBEVNBAPBYBBDMLPNABESDUBEQPTAEQPTTEYYQYB | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0366 | 75 20 63 42 29 44 75 59 11 24 39 77 33 42 57 87 25 69 15 45 63 38 13 87 27 67 71 44 75 20 28 25 11 63 77 29 24 69 48 27 64 29 77 88 69 38 28 42 59 29 13 65 87 44 57 11 39 49 20 75 59 48 38 88 27 28 57 63 44 88 33 71 89 42 67 75 20 77 11 28 87 61 64 58 11 27 65 69 38 33 59 28 61 57 63 65 33 64 87 86 11 65 16 39 42 20 71... | 75 20 63 42 29 44 75 59 11 24 39 77 33 42 57 87 25 69 15 45 63 38 13 87 27 67 71 44 75 20 28 25 11 63 77 29 24 69 48 27 64 29 77 88 69 38 28 42 59 29 13 65 87 44 57 11 39 49 20 75 59 48 38 88 27 28 57 63 44 88 33 71 89 42 67 75 20 77 11 28 87 61 64 58 11 27 65 69 38 33 59 28 61 57 63 65 33 64 87 86 11 65 16 39 42 20 71... | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 320 | 479 | cipher_museum | 2.0 | public | null | null |
two-square-083 | OLETFMIKSSET | OLETFMIKSSET | THE TRAP IS SET | two_square | two_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0018 | BETSXNIOLLKVTTL | BETSXNIOLLKVTTL | AWAIT MY SIGNAL | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0305 | 42522285021572024521835622285021162142557232512842857322425222850214257624521748425128284258622252210416217484251282842576357228162174842512828425762982425416214252232274502137425892589529291621425222242583211763251282820228642586222522104 | 42522285021572024521835622285021162142557232512842857322425222850214257624521748425128284258622252210416217484251282842576357228162174842512828425762982425416214252232274502137425892589529291621425222242583211763251282820228642586222522104 | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 239 | 239 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0343 | PMEJAPGZZNKVWRPINPNJN | PMEJAPGZZNKVWRPINPNJN | SONS OF LIBERTY ASSEMBLE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
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