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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
red-type-a-v2-0355 | FVOAVLYRFATOSRYTMOCEUZIMOUBJYWTUFXOCDWEHFUBLPODASXAJYEQCAFHCGUSQUYCNRVILGONQOLNF | FVOAVLYRFATOSRYTMOCEUZIMOUBJYWTUFXOCDWEHFUBLPODASXAJYEQCAFHCGUSQUYCNRVILGONQOLNF | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0479 | VENIUIDIVICI | VENIUIDIVICI | VENI VIDI VICI | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0009500 | IXOI CAET FUYT UNLA RRKL ETON NOID ESST REDR TTIR EVNE FHMI DFNE MULE ENII IHBY SEOD OEMT ECCN ERER QCSB OERP ESWG RCUY | IXOI CAET FUYT UNLA RRKL ETON NOID ESST REDR TTIR EVNE FHMI DFNE MULE ENII IHBY SEOD OEMT ECCN ERER QCSB OERP ESWG RCUY | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | scytale | scytale | null | {
"cols": 4
} | hard | en | 96 | 96 | synthetic_educational | null | null | [] | |
vigenere-v3-0934 | YYIQDBTFKXEQDDTAIGWPDTLKLWHALVXLHFFMVKVHOFJJXWFWQSKMJLQYNEHWRTFMVXAHBFNVXLFSZYLVCLBMWRGIWCNZZPHWVQFKSQLQNTDFFHTAWVRECWSJIQEQMOTLPHGCETKLIHTRTIXGKOZLVHXKSITIPHICDJMIV | YYIQDBTFKXEQDDTAIGWPDTLKLWHALVXLHFFMVKVHOFJJXWFWQSKMJLQYNEHWRTFMVXAHBFNVXLFSZYLVCLBMWRGIWCNZZPHWVQFKSQLQNTDFFHTAWVRECWSJIQEQMOTLPHGCETKLIHTRTIXGKOZLVHXKSITIPHICDJMIV | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0595 | TEORHBNTNUTWEDESEOYOSEAGOCAREITAFHRRCRHLTCDORUTFHRAMEBHDEUTOTSEROHDTLETILCANIHDW | TEORHBNTNUTWEDESEOYOSEAGOCAREITAFHRRCRHLTCDORUTFHRAMEBHDEUTOTSEROHDTLETILCANIHDW | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0154 | OCSYXJL HQ MXYFQLUU | OCSYXJL HQ MXYFQLUU | COURAGE IN DARKNESS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 17 | 19 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0179 | 173 177 121 179 163 136 105 175 167 124 158 180 163 114 152 160 119 182 168 171 114 118 100 129 114 112 161 147 164 178 172 171 140 177 138 131 174 143 166 179 117 123 135 170 161 151 110 174 142 100 143 100 166 129 127 129 143 | 173 177 121 179 163 136 105 175 167 124 158 180 163 114 152 160 119 182 168 171 114 118 100 129 114 112 161 147 164 178 172 171 140 177 138 131 174 143 166 179 117 123 135 170 161 151 110 174 142 100 143 100 166 129 127 129 143 | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 171 | 227 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v3-0117 | IKRJHDFQPTRLBFYZNWMKB | IKRJHDFQPTRLBFYZNWMKB | SONS OF LIBERTY ASSEMBLE | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0083 | 100 998 817 808 806 807 819 999 101 100 150 103 998 810 804 804 815 999 102 998 801 804 800 817 999 998 800 817 812 818 999 998 818 807 800 811 811 999 118 112 998 808 813 805 817 808 813 806 804 803 999 114 100 998 805 804 803 804 817 800 811 999 998 806 814 821 804 817 813 812 804 813 819 999 | 100 998 817 808 806 807 819 999 101 100 150 103 998 810 804 804 815 999 102 998 801 804 800 817 999 998 800 817 812 818 999 998 818 807 800 811 811 999 118 112 998 808 813 805 817 808 813 806 804 803 999 114 100 998 805 804 803 804 817 800 811 999 998 806 814 821 804 817 813 812 804 813 819 999 | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 222 | 295 | cipher_museum | 2.0 | public | null | null |
cda-0018676 | 801 999 856 857 853 843 840 819 999 808 835 800 824 836 999 839 812 812 810 854 999 854 858 852 843 841 820 999 813 865 825 809 814 839 807 812 999 821 861 837 802 839 999 852 812 800 811 801 805 835 813 999 844 862 859 845 861 859 999 856 823 843 860 833 809 999 854 821 844 866 999 802 834 834 999 851 813 802 854 844 ... | 801 999 856 857 853 843 840 819 999 808 835 800 824 836 999 839 812 812 810 854 999 854 858 852 843 841 820 999 813 865 825 809 814 839 807 812 999 821 861 837 802 839 999 852 812 800 811 801 805 835 813 999 844 862 859 845 861 859 999 856 823 843 860 833 809 999 854 821 844 866 999 802 834 834 999 851 813 802 854 844 ... | A STRONG CLAIM NEEDS STRONG EVIDENCE HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | culper_ring | culper_ring | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
adfgvx-026 | AAAFGVXFDXDGDAFAVVXADDVAXGAFAG | AAAFGVXFDXDGDAFAVVXADDVAXGAFAG | FORWARD MARCH NOW | adfgvx | adfgvx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
cda-0013963 | PZIBLGRBYXFOKBEQRTPWAAKQNNYWDYPGNSRUWTCFSOTMBAEEERUNGJVUVQDAGRARDVYRSDHGTMQUUENWSIHIQJFXTWQCUFZEPATBILUONZUZPEAKQQYFUXKRLIVRLKKIWSPWIVYQRK | PZIBLGRBYXFOKBEQRTPWAAKQNNYWDYPGNSRUWTCFSOTMBAEEERUNGJVUVQDAGRARDVYRSDHGTMQUUENWSIHIQJFXTWQCUFZEPATBILUONZUZPEAKQQYFUXKRLIVRLKKIWSPWIVYQRK | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | one_time_pad | one_time_pad | null | {} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
adfgvx-v3-0485 | DGFAADADAFAADAAAAAFAAFADFAAFVVVVXGDGVVXVDXGVFVXGXGVDFFAFAGGGAAGGDGFGFFGFAAAFDFDGADFAXFDXFVDDVXDDVDVGGDDVVVDFXGGGDDVVGGXFGFDDDGVDGGGVVDVAADADAFAAFGFDGAADFGGGAFAFDF | DGFAADADAFAADAAAAAFAAFADFAAFVVVVXGDGVVXVDXGVFVXGXGVDFFAFAGGGAAGGDGFGFFGFAAAFDFDGADFAXFDXFVDDVXDDVDVGGDDVVVDFXGGGDDVVGGXFGFDDDGVDGGGVVDVAADADAFAAFGFDGAADFGGGAFAFDF | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0597 | TPLPCTDMZO+U+XQTHOWOSOPGDBNBEXPIKOFEZGFJPROGBUTFVNJPQEWUDXOGFAKDBEHEOVEDNTQBKHVCXF | TPLPCTDMZO+U+XQTHOWOSOPGDBNBEXPIKOFEZGFJPROGBUTFVNJPQEWUDXOGFAKDBEHEOVEDNTQBKHVCXF | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
rail-fence-fr-029 | VLAVLPIIEARNEIEAEULQEVFCVRBU | VLAVLPIIEARNEIEAEULQEVFCVRBU | VIVE LA FRANCE VIVE LA REPUBLIQUE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 3
} | intermediate | fr | 28 | 28 | cipher_museum | 0.2 | public | null | null |
cda-0015027 | 20 8 5 4 5 20 5 3 20 9 22 5 19 20 21 4 9 5 19 16 1 20 20 5 18 14 19 2 5 6 15 18 5 13 1 11 9 14 7 3 12 1 9 13 19 | 20 8 5 4 5 20 5 3 20 9 22 5 19 20 21 4 9 5 19 16 1 20 20 5 18 14 19 2 5 6 15 18 5 13 1 11 9 14 7 3 12 1 9 13 19 | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
rot13-v2-0046 | JUNG VF VA N ANZR GUNG JUVPU JR PNYY N EBFR OL NAL BGURE ANZR JBHYQ FZRYY NF FJRRG | JUNG VF VA N ANZR GUNG JUVPU JR PNYY N EBFR OL NAL BGURE ANZR JBHYQ FZRYY NF FJRRG | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 64 | 82 | cipher_museum | 2.0 | public | null | null |
noisy-columnar_transposition-ocr_heavy-001 | GAEYNPTTTTELETTANNITCADHMLXIAKWEWOE | GAEYNPTTTTELETTANNITCADHMLXIAKWEWOE | ATTACK AT DAWN THE ENEMY WILL NOT EXPECT IT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | en | 35 | 35 | cipher_museum | 0.2 | public | null | null |
cda-0015253 | ... . -.-. ..- .-. .. - -.-- / -.-. .-.. .- .. -- ... / ... .... --- ..- .-.. -.. / -... . / - . ... - . -.. / ..- -. -.. . .-. / ... -.-. .-. ..- - .. -. -.-- / .--. --- .-.. -.-- -... .. ..- ... / . -. -.-. --- -.. . -.. / .-.. . - - . .-. ... / .- ... / .--. .- .. .-. ... / --- ..-. / -. ..- -- -... . .-. ... / ..-.... | ... . -.-. ..- .-. .. - -.-- / -.-. .-.. .- .. -- ... / ... .... --- ..- .-.. -.. / -... . / - . ... - . -.. / ..- -. -.. . .-. / ... -.-. .-. ..- - .. -. -.-- / .--. --- .-.. -.-- -... .. ..- ... / . -. -.-. --- -.. . -.. / .-.. . - - . .-. ... / .- ... / .--. .- .. .-. ... / --- ..-. / -. ..- -- -... . .-. ... / ..-.... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | morse_code | morse_code | null | {} | hard | en | 92 | 92 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
porta-v3-0561 | MUYGWSRNESIUMESGFTVBL | MUYGWSRNESIUMESGFTVBL | THE TELEGRAPH TRANSMITS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0021668 | BRUT EFOR CZWO RKSO NLYZ HENT HEKE YZPA CEIS SMAL LMOD ZRNE NXRY PTIO NISN OTBR OKEN BYLE TTZR FREQ UENC Y | BRUT EFOR CZWO RKSO NLYZ HENT HEKE YZPA CEIS SMAL LMOD ZRNE NXRY PTIO NISN OTBR OKEN BYLE TTZR FREQ UENC Y | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | commercial_code | commercial_code | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
jefferson-disk-v2-0217 | TZCKNCSZSCZRTUK | TZCKNCSZSCZRTUK | CAVALRY ADVANCES | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
porta-v2-0221 | LWXPZGQRLRXKZDNBREIXMEZSULPNFAUOELXMGRWUOXDEQPLRJWRFMOLXTTETQRGXQEVLWTANWGNGOVLOFC | LWXPZGQRLRXKZDNBREIXMEZSULPNFAUOELXMGRWUOXDEQPLRJWRFMOLXTTETQRGXQEVLWTANWGNGOVLOFC | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "RENAISSANCE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0493 | GDAGGAFFGADAFAAAGGFGDAFAFFGAAADFXDDDVVFFDVVXFGDFDDVVXFVVFXVVADDAAGDDGDGGAGFAFAAFDFAAGFFADXVDFXXGGDGVXXDVVXDVFDVVDGAXVGDDGGVDDFDVGDVDGFVDXGXXGFDVXGDAAAADADFDFFAFAFGDGAAGFFGFVAAF | GDAGGAFFGADAFAAAGGFGDAFAFFGAAADFXDDDVVFFDVVXFGDFDDVVXFVVFXVVADDAAGDDGDGGAGFAFAAFDFAAGFFADXVDFXXGGDGVXXDVVXDVFDVVDGAXVGDDGGVDDFDVGDVDGFVDXGXXGFDVXGDAAAADADFDFFAFAFGDGAAGFFGFVAAF | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 176 | 176 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0192 | 60 06 05 01 18 62 60 12 15 18 04 09 19 60 02 05 07 09 14 14 09 14 07 62 23 09 19 04 15 13 61 11 14 15 23 12 05 04 07 05 62 60 08 15 12 25 15 14 05 09 19 21 14 04 05 18 19 20 01 14 04 09 14 07 | 60 06 05 01 18 62 60 12 15 18 04 09 19 60 02 05 07 09 14 14 09 14 07 62 23 09 19 04 15 13 61 11 14 15 23 12 05 04 07 05 62 60 08 15 12 25 15 14 05 09 19 21 14 04 05 18 19 20 01 14 04 09 14 07 | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 128 | 191 | cipher_museum | 2.0 | public | null | null |
four-square-221 | EZNSXQITURSDILMOMTPTQROYEZNSXPOPIEILNCURMONSXALQMTCSSDGSUMSD | EZNSXQITURSDILMOMTPTQROYEZNSXPOPIEILNCURMONSXALQMTCSSDGSUMSD | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | four_square | four_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
autokey-v3-0071 | CEHTQRFESMVRSPLELJAAALRIIYEUVWMQMBMLEPXMSJCQXMOKJSEKSMOSAOSGLXHTNGLXAZCTALA | CEHTQRFESMVRSPLELJAAALRIIYEUVWMQMBMLEPXMSJCQXMOKJSEKSMOSAOSGLXHTNGLXAZCTALA | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
bazeries-303 | BPSSAFSGFBGOJFSYY | BPSSAFSGFBGOJFSYY | THE EAGLE HAS LANDED | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v3-0114 | RGTCURGTCCFCUVTC | RGTCURGTCCFCUVTC | PER ASPERA AD ASTRA | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0187 | XUF TIXW RCS OXQ MC KCY RCSY OCSQWYR QCW TIXW RCSY OCSQWYR OXQ MC KCY RCS WCMXR XQM XETXRU | XUF TIXW RCS OXQ MC KCY RCSY OCSQWYR QCW TIXW RCSY OCSQWYR OXQ MC KCY RCS WCMXR XQM XETXRU | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 72 | 90 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0177 | IQEOYCAGYIUMMZYHEWWYRCEFVAJHHSRQKMTLPHUHTQVFDSFLJBCUOSVVVVFLPWAIFZOATSCUVAKKQBG | IQEOYCAGYIUMMZYHEWWYRCEFVAJHHSRQKMTLPHUHTQVFDSFLJBCUOSVVVVFLPWAIFZOATSCUVAKKQBG | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0073 | CVJUUJIPMJLAJOJJEXHMLAJRUAPVVYBAJMYLLAJJPMLAPBILAJTJPQJOPEJMUUAPVVCJQPVVJIUHBU | CVJUUJIPMJLAJOJJEXHMLAJRUAPVVYBAJMYLLAJJPMLAPBILAJTJPQJOPEJMUUAPVVCJQPVVJIUHBU | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0016393 | 01602 6928 01611 5658 7853 6009 7859 6016 6379 1580 4099 4423 1614 01634 01309 6063 0377 04449 2577 04800 4434 1618 6005 06290 06333 2550 05657 1602 0357 6321 04125 04718 1343 1646 03807 6344 2577 01647 05041 3784 0344 07934 01892 0370 02915 5717 1015 02916 5056 2595 1641 5740 01616 4443 01018 5750 07887 05028 6349 060... | 01602 6928 01611 5658 7853 6009 7859 6016 6379 1580 4099 4423 1614 01634 01309 6063 0377 04449 2577 04800 4434 1618 6005 06290 06333 2550 05657 1602 0357 6321 04125 04718 1343 1646 03807 6344 2577 01647 05041 3784 0344 07934 01892 0370 02915 5717 1015 02916 5056 2595 1641 5740 01616 4443 01018 5750 07887 05028 6349 060... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | zimmermann | zimmermann | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
venona-pad-reuse-v2-0372 | WWABXDPF5AJQOHKAKFIKALUGKPCYIZGEQGCIZWXEO7LUVAM7CGFGMOIMW7JAMAEICAMQJIUVTEB5H57VEMB5LGMID5IOJEIH46FXAWHFIHCAHD5MI7XDH7DLZJXG7IVFAJQFUWWAIH46FXAWEOZB5AEOGBDRJHSKJBAXKMJUXZGEIMCITALQ4 | WWABXDPF5AJQOHKAKFIKALUGKPCYIZGEQGCIZWXEO7LUVAM7CGFGMOIMW7JAMAEICAMQJIUVTEB5H57VEMB5LGMID5IOJEIH46FXAWHFIHCAHD5MI7XDH7DLZJXG7IVFAJQFUWWAIH46FXAWEOZB5AEOGBDRJHSKJBAXKMJUXZGEIMCITALQ4 | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
cda-0018941 | 16.1.8 20.4.10 7.2.4 8.1.8 19.1.10 9.2.4 1.5.1 5.3.1 20.3.4 5.3.4 5.3.3 6.5.2 15.1.6 1.2.7 8.5.1 9.2.7 10.1.1 12.6.6 9.6.9 20.1.1 4.1.8 11.6.10 17.6.6 6.3.9 5.3.6 6.3.2 20.1.10 3.2.4 13.3.6 16.4.2 1.1.2 17.6.2 6.1.4 17.1.10 11.5.1 6.3.2 11.3.8 16.1.5 3.1.1 15.2.2 11.3.8 1.2.10 15.3.2 3.4.2 7.3.2 12.2.9 3.2.7 10.5.6 12.... | 16.1.8 20.4.10 7.2.4 8.1.8 19.1.10 9.2.4 1.5.1 5.3.1 20.3.4 5.3.4 5.3.3 6.5.2 15.1.6 1.2.7 8.5.1 9.2.7 10.1.1 12.6.6 9.6.9 20.1.1 4.1.8 11.6.10 17.6.6 6.3.9 5.3.6 6.3.2 20.1.10 3.2.4 13.3.6 16.4.2 1.1.2 17.6.2 6.1.4 17.1.10 11.5.1 6.3.2 11.3.8 16.1.5 3.1.1 15.2.2 11.3.8 1.2.10 15.3.2 3.4.2 7.3.2 12.2.9 3.2.7 10.5.6 12.... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE INDEX OF COINCIDENCE IS A USEFUL CLUE | arnold_andre | arnold_andre | null | {} | hard | en | 154 | 154 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
venona-pad-reuse-v3-0166 | YPFFRALAMPBQCQYIJJAT6PLJJCU4ZCJADTZF5FA4VTLFCB7C5F4QI76LM2JJ43VP3FA4WW23Z | YPFFRALAMPBQCQYIJJAT6PLJJCU4ZCJADTZF5FA4VTLFCB7C5F4QI76LM2JJ43VP3FA4WW23Z | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0612 | RPGXAONYKXWWBKFIWNPUCXWWYEZNQVLWDIDKNVGMWTMRXTNQBGOYGKJXNOLPXZYNWNFWUBVVJTKDADUCHVVFCOICTNCIXOUPHEKXBGNLIYDCDBJKFPNYKMBJOQTBFAGLFOUMUIKOPGMSVMVYRPKMZJGGKGBJOKFJRXVBKYF | RPGXAONYKXWWBKFIWNPUCXWWYEZNQVLWDIDKNVGMWTMRXTNQBGOYGKJXNOLPXZYNWNFWUBVVJTKDADUCHVVFCOICTNCIXOUPHEKXBGNLIYDCDBJKFPNYKMBJOQTBFAGLFOUMUIKOPGMSVMVYRPKMZJGGKGBJOKFJRXVBKYF | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 167 | 167 | cipher_museum | 2.0 | public | null | null |
cda-0012971 | TYCVE BIVCD CIJTJ ETGOD OGAHK HYIDK VLUBF JLLKD QWBQQ FGRAW HJXMD YJEBF ZXLWG AHRYQ NVAHU YGGJK PCKOG RJVWV DBBGY XOLAZ MAGEV DDVLL CXC | TYCVE BIVCD CIJTJ ETGOD OGAHK HYIDK VLUBF JLLKD QWBQQ FGRAW HJXMD YJEBF ZXLWG AHRYQ NVAHU YGGJK PCKOG RJVWV DBBGY XOLAZ MAGEV DDVLL CXC | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE MESSAGE WAS HIDDEN BUT NOT SECURE | one_time_pad | one_time_pad | null | {} | hard | en | 113 | 113 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
vic-v3-0118 | 819155896156834680 | 819155896156834680 | FULL SAIL AHEAD | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0045 | PZZFYRBWSNCRRFPNXANDDYMHUYLXWMIQBQJYEZIAEXFMPAJFADTKFKODTZCA | PZZFYRBWSNCRRFPNXANDDYMHUYLXWMIQBQJYEZIAEXFMPAJFADTKFKODTZCA | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0280 | MMZIPZWZSSSOSGYOMMPWDZMNSNMUDQFNKZHFHFVJNOQOSKOWOOGXMMMONNSKVJNOGMXPTD | MMZIPZWZSSSOSGYOMMPWDZMNSNMUDQFNKZHFHFVJNOQOSKOWOOGXMMMONNSKVJNOGMXPTD | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
m209-177 | VJWKLDLVYLYPLIKJRBYUANBAYATBEJXZKOKVZYKYDKLCMTNYQETPURYZYXQNXHLMWBLZMNRJWXNYVPQRKYZZADYGAJCVZTPBMACKBAAWKPITNQLOJXEJBDIKAYPLGVUDVKXXEWDIAJWZQCMIXITSSZCMJNZ | VJWKLDLVYLYPLIKJRBYUANBAYATBEJXZKOKVZYKYDKLCMTNYQETPURYZYXQNXHLMWBLZMNRJWXNYVPQRKYZZADYGAJCVZTPBMACKBAAWKPITNQLOJXEJBDIKAYPLGVUDVKXXEWDIAJWZQCMIXITSSZCMJNZ | 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 | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0337 | FSTRFTRIETHESOTXESXCATAEEEQYPATTPRNTULLFCEPOIHEAOEELEMNSNNIHRNAREICATTTIRANLYSAFG | FSTRFTRIETHESOTXESXCATAEEEQYPATTPRNTULLFCEPOIHEAOEELEMNSNNIHRNAREICATTTIRANLYSAFG | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0114 | CEWJBMHIQROESQOZQOO | CEWJBMHIQROESQOZQOO | MISSION ACCOMPLISHED | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0446 | DXFDAXAXDXGXGXDFGAGXFGFAXGXFAAXDDDDADDGGGADAXFFGADXDDAFAGAXAXGXAXDAFFXDDXAXFAGXGAAXDFXGGAXFXDFAAGXXFGXDADGAFDXFDDXGDFDGADXADDFGXFDADAFGDGGAAXDDAAXADGF | DXFDAXAXDXGXGXDFGAGXFGFAXGXFAAXDDDDADDGGGADAXFFGADXDDAFAGAXAXGXAXDAFFXDDXAXFAGXGAAXDFXGGAXFXDFAAGXXFGXDADGAFDXFDDXGDFDGADXADDFGXFDADAFGDGGAAXDDAAXADGF | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0169 | YPFFRALAMPBXXLYQTFFC6AITXVQLMZFASTAZIMHT5KYGUAAWQO3ZXW5MZIMHTTK7IKXZXKYGSE2 | YPFFRALAMPBXXLYQTFFC6AITXVQLMZFASTAZIMHT5KYGUAAWQO3ZXW5MZIMHTTK7IKXZXKYGSE2 | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0012989 | LHYSFMOSLIHEBIZZDWHTLQGFALEVVFGKZVHFNSNUKULONINVMAFPXDDYCXJCRSIMUNRCRQDREMN | LHYSFMOSLIHEBIZZDWHTLQGFALEVVFGKZVHFNSNUKULONINVMAFPXDDYCXJCRSIMUNRCRQDREMN | A STRONG CLAIM NEEDS STRONG EVIDENCE THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | vernam | vernam | null | {} | medium | en | 75 | 75 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
monoalphabetic-v3-0015 | TFE SGEDE AEDGMS | TFE SGEDE AEDGMS | THE SIEGE BEGINS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "PALACE"
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
babington-049 | ⟨a13⟩ ⟨a19⟩ ⟨w32⟩ ⟨w10⟩ ⟨a06⟩ ⟨w13⟩ ⟨w36⟩ ⟨w18⟩ ⟨w19⟩ ⟨w32⟩ ⟨w10⟩ ⟨n03⟩ | ⟨a13⟩ ⟨a19⟩ ⟨w32⟩ ⟨w10⟩ ⟨a06⟩ ⟨w13⟩ ⟨w36⟩ ⟨w18⟩ ⟨w19⟩ ⟨w32⟩ ⟨w10⟩ ⟨n03⟩ | CHANGE OF PLANS | babington | babington | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 60 | 71 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-145 | AMJVJRWMQXKYRAP | AMJVJRWMQXKYRAP | SILENCE IS GOLDEN | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v3-0767 | TDA AXMAQEJAKT NLKBEQJS | TDA AXMAQEJAKT NLKBEQJS | THE EXPERIMENT CONFIRMS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "HONOR"
} | beginner | en | 21 | 23 | cipher_museum | 2.0 | public | null | null |
typex-v2-0373 | TUMXLJBIXAVBNBRJBTWFHBISPHEYKOZDRKIGZXQRDPAVWVMALMGICVTDDRIWZWFNHTMBDMYFJHUQCBAJJSGFFXOBXLYRIGKHWNGMVUXMNYSTBQVTDUTWWNMZZEVARTSUSHKZLQZWAJUXZBAFOPSQZI | TUMXLJBIXAVBNBRJBTWFHBISPHEYKOZDRKIGZXQRDPAVWVMALMGICVTDDRIWZWFNHTMBDMYFJHUQCBAJJSGFFXOBXLYRIGKHWNGMVUXMNYSTBQVTDUTWWNMZZEVARTSUSHKZLQZWAJUXZBAFOPSQZI | 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 | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
solitaire-006 | HLUUVWASOFCMKBLL | HLUUVWASOFCMKBLL | PROCEED AS PLANNED | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0017443 | chedal qotedy qokeedy chor chol qotedy ytaiin otol lkaiin okal sheedy oxed otol otaiin qokal dal oxed kaiiin kaiiin rcheol chor rcheol chedy ykcheol okshy shaiin otol ytedy dainy chor okedy okal ykcheol ykcheol choldaiin otain sheol shaiin chol okeedy shor shal aiiin aiiin dal sheedy chor okal choldaiin qokal lkaiin sh... | chedal qotedy qokeedy chor chol qotedy ytaiin otol lkaiin okal sheedy oxed otol otaiin qokal dal oxed kaiiin kaiiin rcheol chor rcheol chedy ykcheol okshy shaiin otol ytedy dainy chor okedy okal ykcheol ykcheol choldaiin otain sheol shaiin chol okeedy shor shal aiiin aiiin dal sheedy chor okal choldaiin qokal lkaiin sh... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY TODAY | voynich_render | voynich_render | null | {} | hard | en | 287 | 287 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
joseon-yeokhak-v2-0183 | KWHVAOZWQSHCKOFRBCBSKWHVQVOFWHMTCFOZZZSHIGPWBRIDHVSBOHWCBGKCIBRGOBRVSOZ | KWHVAOZWQSHCKOFRBCBSKWHVQVOFWHMTCFOZZZSHIGPWBRIDHVSBOHWCBGKCIBRGOBRVSOZ | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
m209-v3-0279 | SYHLPSLBIMUADQLSZYCRRDQCUQLJWLCBJWZKCQAYPKDZJVDJWQSCLKYAOTBQYLMVOMVZXLLDJVL | SYHLPSLBIMUADQLSZYCRRDQCUQLJWLCBJWZKCQAYPKDZJVDJWQSCLKYAOTBQYLMVOMVZXLLDJVL | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0362 | YWSAGOWESLAKLAXLEEFHAVLEGNIOLTYBNAFOFENLASDIRPFUSOOYFELFRETFBXUNVERN | YWSAGOWESLAKLAXLEEFHAVLEGNIOLTYBNAFOFENLASDIRPFUSOOYFELFRETFBXUNVERN | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0230 | DGAFAFAGADDGADAGAGGGDFAXADAFDGDAAAFVAFGXDDAGAGDFFGGXDVGDAXAVAVDGAGGGFDGVAVFGAVFVFXFAAGFDDDFGADDXADFDDAXAXADAXAAAFDDADAGAXDDDDGFDAXAGDFGXDVDVAFADGXAAGVGVFAFVAGAXGFAVGVFGADDX | DGAFAFAGADDGADAGAGGGDFAXADAFDGDAAAFVAFGXDDAGAGDFFGGXDVGDAXAVAVDGAGGGFDGVAVFGAVFVFXFAAGFDDDFGADDXADFDDAXAXADAXAAAFDDADAGAXDDDDGFDAXAGDFGXDVDVAFADGXAAGVGVFAFVAGAXGFAVGVFGADDX | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0327 | HIHAFAQTSYNKRYPNIOKOCKDBLBULOLNXHMPFLULQULITBNSNTEIOFLOHEIQFTUVKEFOHBWWLXFNBEBSXSOMBRY | HIHAFAQTSYNKRYPNIOKOCKDBLBULOLNXHMPFLULQULITBNSNTEIOFLOHEIQFTUVKEFOHBWWLXFNBEBSXSOMBRY | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0018 | 167 127 154 113 144 175 129 108 178 166 124 176 167 | 167 127 154 113 144 175 129 108 178 166 124 176 167 | TREACHERY IN THE COURT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 39 | 51 | cipher_museum | 2.0 | public | null | null |
vigenere-es-104 | QFIYYOAHDSVAEUFHUMMODPUDMJJIHPQ | QFIYYOAHDSVAEUFHUMMODPUDMJJIHPQ | EL QUE CON LOBOS ANDA A AULLAR APRENDE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | es | 31 | 31 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0194 | DAXGDGFGDDFGGFFGAAGXFFDDGAAADFDDDXAFFAAF | DAXGDGFGDDFGGFFGAAGXFFDDGAAADFDDDXAFFAAF | THE LEGIONS STAND READY | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0982 | FYHORCOARERSTTA | FYHORCOARERSTTA | THE FACTORY ROARS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0017725 | ANAFF INECI PHERX PPLIE SALIZ EARFU NCTIZ NTOEA CHLET TERDZ | ANAFF INECI PHERX PPLIE SALIZ EARFU NCTIZ NTOEA CHLET TERDZ | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | commercial_code | commercial_code | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
voynich-render-021 | gcd aqkehd kx xdyzqde | gcd aqkehd kx xdyzqde | THE BRIDGE IS SECURED | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 18 | 21 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v2-0813 | MONHOTUTUHTENHYLNNWNHTOCFEDAODWIRIILBHNSLLAWRASTODAAWEARUPINEICDTTLIESA | MONHOTUTUHTENHYLNNWNHTOCFEDAODWIRIILBHNSLLAWRASTODAAWEARUPINEICDTTLIESA | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0213 | SOSUTNEDPTMHUERT | SOSUTNEDPTMHUERT | SOUND THE TRUMPETS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0055 | SLSQFXKGNJYQOBCQGHNCFAJSHAPTJOVQRPLYATNBUABBCTQTVJLJRTZQJSJOZKCKBYSJCBYFQIC | SLSQFXKGNJYQOBCQGHNCFAJSHAPTJOVQRPLYATNBUABBCTQTVJLJRTZQJSJOZKCKBYSJCBYFQIC | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
m209-v3-0219 | FHZSDOVBYOBLVFLSZQC | FHZSDOVBYOBLVFLSZQC | AVE MARIA GRATIA PLENA | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
purple-032 | SMDWAPFYENNTQZDXCNDTFEWYSMTQQPZELKHWMIOBLSOBF | SMDWAPFYENNTQZDXCNDTFEWYSMTQQPZELKHWMIOBLSOBF | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | purple | purple | machine | {
"type": "seed",
"value": "PURPLE"
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
chaocipher-v2-0337 | KKKREHXFDITBJLTWENVPEGPCYWWJRDFIURHACNONURSRRIKGCTDFATHATXZVZNYOCFQKBSHGHGFELKKQZ | KKKREHXFDITBJLTWENVPEGPCYWWJRDFIURHACNONURSRRIKGCTDFATHATXZVZNYOCFQKBSHGHGFELKKQZ | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0012653 | KTLP MEDK UUFG SRKX HTZU TYJV PGZP PTQP WTIE AXXH AZTB FHLK GGTF VSLF BUWK YNBB AKVS QVUH NZBO HWQZ IXXQ CHXD WDXH YDKO QBAP ZPVD ADXA JTPC IKMU XKXN HGFP PWJC DCIL HQIM UWJG Z | KTLP MEDK UUFG SRKX HTZU TYJV PGZP PTQP WTIE AXXH AZTB FHLK GGTF VSLF BUWK YNBB AKVS QVUH NZBO HWQZ IXXQ CHXD WDXH YDKO QBAP ZPVD ADXA JTPC IKMU XKXN HGFP PWJC DCIL HQIM UWJG Z | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE VIGENERE CIPHER USES A REPEATING KEYWORD PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | one_time_pad | one_time_pad | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0019070 | 15.43.6 14.6.2 6.37.8 9.3.5 14.46.9 20.49.10 10.23.8 2.47.11 12.40.7 6.34.13 15.5.8 5.38.5 1.49.15 5.16.8 6.5.5 13.19.14 4.9.4 13.50.8 11.3.14 12.40.6 5.27.15 2.3.2 11.22.13 4.31.6 14.20.11 16.11.11 14.38.7 1.30.8 15.21.8 9.30.9 17.43.12 9.30.10 13.39.7 18.6.12 18.21.5 8.16.8 8.38.2 2.36.2 7.3.5 20.20.11 9.31.10 16.33.... | 15.43.6 14.6.2 6.37.8 9.3.5 14.46.9 20.49.10 10.23.8 2.47.11 12.40.7 6.34.13 15.5.8 5.38.5 1.49.15 5.16.8 6.5.5 13.19.14 4.9.4 13.50.8 11.3.14 12.40.6 5.27.15 2.3.2 11.22.13 4.31.6 14.20.11 16.11.11 14.38.7 1.30.8 15.21.8 9.30.9 17.43.12 9.30.10 13.39.7 18.6.12 18.21.5 8.16.8 8.38.2 2.36.2 7.3.5 20.20.11 9.31.10 16.33.... | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | book_cipher | book_cipher | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
chaocipher-v3-0094 | HVOYMCJWDSNFRNZMTEWTWHEQFACGNNPYMEDIQJHNDSICUWAFHHLYDVVZFYBBETYMTLDPCIWJHAUZHCIRJGFXLTAUWMSVXZDGBGZIEWVCVRNRRGPKDYNKKQQXRWGVUUREHXOXEGPJLTYOKYQCTFSWXGXRAOWYFXFKU | HVOYMCJWDSNFRNZMTEWTWHEQFACGNNPYMEDIQJHNDSICUWAFHHLYDVVZFYBBETYMTLDPCIWJHAUZHCIRJGFXLTAUWMSVXZDGBGZIEWVCVRNRRGPKDYNKKQQXRWGVUUREHXOXEGPJLTYOKYQCTFSWXGXRAOWYFXFKU | 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 | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-029 | XAOWPAIZMXXSMFQE | XAOWPAIZMXXSMFQE | LOCK DOWN ALL GATES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
babington-v2-0033 | ⟨w33⟩ ⟨w07⟩ ⟨w02⟩ ⟨w21⟩ ⟨w07⟩ ⟨w02⟩ ⟨w13⟩ ⟨w21⟩ ⟨w23⟩ ⟨a08⟩ ⟨w16⟩ ⟨w07⟩ ⟨w21⟩ ⟨w15⟩ | ⟨w33⟩ ⟨w07⟩ ⟨w02⟩ ⟨w21⟩ ⟨w07⟩ ⟨w02⟩ ⟨w13⟩ ⟨w21⟩ ⟨w23⟩ ⟨a08⟩ ⟨w16⟩ ⟨w07⟩ ⟨w21⟩ ⟨w15⟩ | ENEMY RETREATS NORTH | babington | babington | nomenclator | {
"type": "seed",
"value": "WALSINGHAM"
} | expert | en | 70 | 83 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0001 | QGL CVYOEL GYZ ZBCWLX | QGL CVYOEL GYZ ZBCWLX | THE ORACLE HAS SPOKEN | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0621 | LZWPQWQFKYVKPCFMKLXUTFRZGKKLENRHFVHKFICZIDOBBJDYLHRFSDYSRDQSUXOPFCSGIVQXQVIFLJUMIPZLVYLRSJHTCJSNYFARQCTELWHWOYBEOIVKHDBRAXLPKWGATZMNPDDVZLUUEZSOUZRXYTIAEQJHDIGZSDPK | LZWPQWQFKYVKPCFMKLXUTFRZGKKLENRHFVHKFICZIDOBBJDYLHRFSDYSRDQSUXOPFCSGIVQXQVIFLJUMIPZLVYLRSJHTCJSNYFARQCTELWHWOYBEOIVKHDBRAXLPKWGATZMNPDDVZLUUEZSOUZRXYTIAEQJHDIGZSDPK | 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 | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0011207 | TIGPI XYHON GLEUW STVFU OOJLR REDWU I | TIGPI XYHON GLEUW STVFU OOJLR REDWU I | THE MESSAGE WAS HIDDEN BUT NOT SECURE | trithemius | trithemius | null | {} | medium | en | 31 | 31 | synthetic_educational | null | null | [] | |
four-square-v3-0387 | FOQOCQFYBRRLRW | FOQOCQFYBRRLRW | MARCH TO VICTORY | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0008383 | TNHSIGSHSEFMTTESMRAHIBHEITFCEOTEERSSWHDDOXTWOMKMXLHDAESXEEFNYTXSRAELAXSEISETXOTLTNIX | TNHSIGSHSEFMTTESMRAHIBHEITFCEOTEERSSWHDDOXTWOMKMXLHDAESXEEFNYTXSRAELAXSEISETXOTLTNIX | THE BEST LESSONS SHOW WHERE THE METHOD FAILS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | scytale | scytale | null | {
"cols": 12
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
sigaba-v2-0107 | TJHEUKREHYONRWRENYPKJBJMKAGVVOUPYABCZMFPALLTBZPZTYMVVGREJDKVSDATDERXWVTEYQTZDELIFCBBFZJZVDRAMHWASCHRNJLJFXFWMIJRBAQECLBPRUIJIRDZGMRSMYCTIGRJFRF | TJHEUKREHYONRWRENYPKJBJMKAGVVOUPYABCZMFPALLTBZPZTYMVVGREJDKVSDATDERXWVTEYQTZDELIFCBBFZJZVDRAMHWASCHRNJLJFXFWMIJRBAQECLBPRUIJIRDZGMRSMYCTIGRJFRF | 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 | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0368 | YPULGGSDVPYMVOTRBICZJRUXOWHMUSJNZLEZOOSBDSETCYKWLRZLUZPTKEMGNOZPNXJOOMNYLSSUQQ | YPULGGSDVPYMVOTRBICZJRUXOWHMUSJNZLEZOOSBDSETCYKWLRZLUZPTKEMGNOZPNXJOOMNYLSSUQQ | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0205 | 52 48 28 27 48 55 47 72 47 35 56 66 85 46 73 36 35 56 48 87 80 54 60 59 26 66 65 56 45 59 65 28 39 83 49 42 27 69 37 38 56 56 64 68 37 59 76 83 59 73 67 28 29 39 67 48 53 46 29 37 66 66 47 76 68 37 25 70 54 76 63 48 37 49 37 83 56 43 50 28 | 52 48 28 27 48 55 47 72 47 35 56 66 85 46 73 36 35 56 48 87 80 54 60 59 26 66 65 56 45 59 65 28 39 83 49 42 27 69 37 38 56 56 64 68 37 59 76 83 59 73 67 28 29 39 67 48 53 46 29 37 66 66 47 76 68 37 25 70 54 76 63 48 37 49 37 83 56 43 50 28 | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 160 | 239 | cipher_museum | 2.0 | public | null | null |
cda-0010878 | CQNER PNWNA NLRYQ NADBN BJANY NJCRW PTNHF XAMJW JOORW NLRYQ NAJYY URNBJ URWNJ AODWL CRXWC XNJLQ UNCCN AOANZ DNWLH JWJUH BRBLJ WANEN JUFNJ TLRYQ NABNE NAHBH BCNVW NNMBJ WQXWN BCCQA NJCVX MNU | CQNER PNWNA NLRYQ NADBN BJANY NJCRW PTNHF XAMJW JOORW NLRYQ NAJYY URNBJ URWNJ AODWL CRXWC XNJLQ UNCCN AOANZ DNWLH JWJUH BRBLJ WANEN JUFNJ TLRYQ NABNE NAHBH BCNVW NNMBJ WQXWN BCCQA NJCVX MNU | THE VIGENERE CIPHER USES A REPEATING KEYWORD AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | gronsfeld | gronsfeld | null | {
"key": "99999"
} | hard | en | 158 | 158 | synthetic_educational | null | null | [] | |
cda-0021567 | - .-- --- / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / . -. -.-. .-. -.-- .--. - ... / -.. .. --. .-. .- .--. .... ... / .-- .. - .... / - .-- --- / .--. --- .-.. -.-- -... .. ..- ... / .- .-.. .--. .... .- -... . - ... / - .... . / --- -. . / - .. -- . / .--. .- -.. / .. ... / - .... . --- .-. . - .. -.-. .- .-... | - .-- --- / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / . -. -.-. .-. -.-- .--. - ... / -.. .. --. .-. .- .--. .... ... / .-- .. - .... / - .-- --- / .--. --- .-.. -.-- -... .. ..- ... / .- .-.. .--. .... .- -... . - ... / - .... . / --- -. . / - .. -- . / .--. .- -.. / .. ... / - .... . --- .-. . - .. -.-. .- .-... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | morse_code | morse_code | null | {} | hard | en | 109 | 109 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
fractionated-morse-v3-0052 | HWQFNQJMWDVXCDSVXMXPDQWFNMVFDFJPFWOHVDQJDLPFNATLHVLATFDQFLCTSBDQVJCFNPUMSJHTVNCTWDTDQJG | HWQFNQJMWDVXCDSVXMXPDQWFNMVFDFJPFWOHVDQJDLPFNATLHVLATFDQFLCTSBDQVJCFNPUMSJHTVNCTWDTDQJG | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0019842 | 00375 06305 00709 0355 05980 02524 1611 04413 00992 04771 1340 1582 5979 0679 07922 5661 1584 06939 01612 5690 6002 2893 04460 02281 06317 02611 01592 00324 03819 5072 02596 00371 0704 1615 6316 6308 02545 01627 00386 6664 6343 4739 3492 01610 07936 1002 02876 5046 02568 1583 05666 1587 7584 6326 1634 04472 01259 06020... | 00375 06305 00709 0355 05980 02524 1611 04413 00992 04771 1340 1582 5979 0679 07922 5661 1584 06939 01612 5690 6002 2893 04460 02281 06317 02611 01592 00324 03819 5072 02596 00371 0704 1615 6316 6308 02545 01627 00386 6664 6343 4739 3492 01610 07936 1002 02876 5046 02568 1583 05666 1587 7584 6326 1634 04472 01259 06020... | ATBASH ENCODES BY REVERSING THE ALPHABET THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | zimmermann | zimmermann | null | {} | hard | en | 158 | 158 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0003642 | QELCG BUEOC VLERJ OEQFC OGWRA NROAQ QOEST HYGUW AXWAT FSNHE VGLNY OVZFF VBHNR PSGRF GRRHA RSEFN EHGVA LOFQL GOYSW FOEBR HFSQN LFCOE GOAFG BRAQE LCGZS FFOTS F | QELCG BUEOC VLERJ OEQFC OGWRA NROAQ QOEST HYGUW AXWAT FSNHE VGLNY OVZFF VBHNR PSGRF GRRHA RSEFN EHGVA LOFQL GOYSW FOEBR HFSQN LFCOE GOAFG BRAQE LCGZS FFOTS F | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | porta | porta | null | {
"key": "SECURE"
} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
sigaba-146 | ISHIYCXDQQWYLMW | ISHIYCXDQQWYLMW | FORWARD MARCH NOW | sigaba | sigaba | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
purple-v2-0229 | YFNUMRAGJYGIBQMTFZHPZYQIGDJVJHOTXKOEWVQTOBOKPUXLROWRDYOGRCFDBNCFZLNCGDUUXQVHJZKJ | YFNUMRAGJYGIBQMTFZHPZYQIGDJVJHOTXKOEWVQTOBOKPUXLROWRDYOGRCFDBNCFZLNCGDUUXQVHJZKJ | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0014149 | 20 18 1 14 19 16 15 19 9 20 9 15 14 3 9 16 8 5 18 19 18 5 1 18 18 1 14 7 5 12 5 20 20 5 18 19 23 9 20 8 15 21 20 19 21 2 19 20 9 20 21 20 9 15 14 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 | 20 18 1 14 19 16 15 19 9 20 9 15 14 3 9 16 8 5 18 19 18 5 1 18 18 1 14 7 5 12 5 20 20 5 18 19 23 9 20 8 15 21 20 19 21 2 19 20 9 20 21 20 9 15 14 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION A STRONG CLAIM NEEDS STRONG EVIDENCE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
confederate-vigenere-v2-0143 | TWFLPARVJIILRCYOFEU | TWFLPARVJIILRCYOFEU | CODED MESSAGE FOLLOWS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
diana-v3-0230 | CKRZSOSVNRTFRVRRAA | CKRZSOSVNRTFRVRRAA | DEAD MEN TELL NO TALES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0020472 | TURN SHEA DSEN EMYP OINT LINE SAMO NGYO UNGF IRST ALER TINC URRA DIOC LAIM INCU RPOI NTHO LDSE NEMY RANG EENE MYNE EDSC OULD RAID SYEA RSPL ACET HREE SEEK S | TURN SHEA DSEN EMYP OINT LINE SAMO NGYO UNGF IRST ALER TINC URRA DIOC LAIM INCU RPOI NTHO LDSE NEMY RANG EENE MYNE EDSC OULD RAID SYEA RSPL ACET HREE SEEK S | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
four-square-v2-0275 | TGGNPSNDGEQQRRQBOKGQBHGIDDSTFBTVUZKQCSRNUQPSQQDLIY | TGGNPSNDGEQQRRQBOKGQBHGIDDSTFBTVUZKQCSRNUQPSQQDLIY | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 50 | 50 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0424 | DRBPETALPBRTHEENNQXQOSHHIONAFTDRPORTBAEIBEBSDRCFGHPKOIIYHHKECDLLPUDRBFQNBPTDSY | DRBPETALPBRTHEENNQXQOSHHIONAFTDRPORTBAEIBEBSDRCFGHPKOIIYHHKECDLLPUDRBFQNBPTDSY | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0071 | ┼• ┼ ╳• ╳ ┤• ┼• ╲ ⌐ ╳• ╳ ┬ ┼ ⌐ ┌• ┌• ¬• ┼ ┤ ⌐ ¬• ¬• ⌐ ┼• ├ ┐ ┼• ╳ ╱ ┐ ╳ ┼ ├ ╳ ┬ ┼ ╲ ⌐ ├• ┼ ┤ ┤• ┐• ¬ ┼ ╳ ┬ ⌐ ╳ ┬ ┤• ¬• ├ ╲ ╳ ┬ ┼ ┌• ¬• ⌐ ┼• ┼ ╳ ╲ ┐ ┼• ╳ ┬ ┼ ┐ ┐• ┌• ⌐ ╳ ┬ ╲ | ┼• ┼ ╳• ╳ ┤• ┼• ╲ ⌐ ╳• ╳ ┬ ┼ ⌐ ┌• ┌• ¬• ┼ ┤ ⌐ ¬• ¬• ⌐ ┼• ├ ┐ ┼• ╳ ╱ ┐ ╳ ┼ ├ ╳ ┬ ┼ ╲ ⌐ ├• ┼ ┤ ┤• ┐• ¬ ┼ ╳ ┬ ⌐ ╳ ┬ ┤• ¬• ├ ╲ ╳ ┬ ┼ ┌• ¬• ⌐ ┼• ┼ ╳ ╲ ┐ ┼• ╳ ┬ ┼ ┐ ┐• ┌• ⌐ ╳ ┬ ╲ | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 98 | 172 | cipher_museum | 2.0 | public | null | null |
caesar-de-022 | KLBAZJOSHUK BILY HSSLZ PU KLY DLSA | KLBAZJOSHUK BILY HSSLZ PU KLY DLSA | DEUTSCHLAND UBER ALLES IN DER WELT | caesar | caesar | substitution | {
"type": "shift",
"value": 7
} | beginner | de | 29 | 34 | cipher_museum | 0.2 | public | null | null |
cda-0006028 | TRVEHIDNILHYEDETECSCEPSGCYXIALLRKEOTODUUIENFMHFESEBSOOMECNEXREWRUIOCFXARLTNNIEUX | TRVEHIDNILHYEDETECSCEPSGCYXIALLRKEOTODUUIENFMHFESEBSOOMECNEXREWRUIOCFXARLTNNIEUX | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE INDEX OF COINCIDENCE IS A USEFUL CLUE | scytale | scytale | null | {
"cols": 8
} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
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