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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
four-square-120 | FKLALMQCQDKL | FKLALMQCQDKL | HOLD POSITION | four_square | four_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0012228 | UOMGU FGOJY NVNDK JJPAF NGDOT APGEM CSGUN WZKXX ASFBZ NJHTG FMHUM XELZV LXUSM ZCPEH QHIQO DQYRP LYDLY OWLSH YRRKX OTEDT DGKAV VKYYT FHTGK TFAGH QCHZS ESQUU FGNBV AFJFH QWPLR RLSHC KTYTI ISXEA WK | UOMGU FGOJY NVNDK JJPAF NGDOT APGEM CSGUN WZKXX ASFBZ NJHTG FMHUM XELZV LXUSM ZCPEH QHIQO DQYRP LYDLY OWLSH YRRKX OTEDT DGKAV VKYYT FHTGK TFAGH QCHZS ESQUU FGNBV AFJFH QWPLR RLSHC KTYTI ISXEA WK | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE MESSAGE WAS HIDDEN BUT NOT SECURE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | one_time_pad | one_time_pad | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
adfgx-v3-0232 | ADAFDAXAFAFGFGFGFADA | ADAFDAXAFAFGFGFGFADA | DOT DASH DOT | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0076 | LHLTFSAZIMSFSXQMPDOSBHGMIAMVKWPBELAKYZOEJRPPWLBVCLBDCORPUECNGIXECLEFZJSPPW | LHLTFSAZIMSFSXQMPDOSBHGMIAMVKWPBELAKYZOEJRPPWLBVCLBDCORPUECNGIXECLEFZJSPPW | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
trifid-vg-0052 | REEWFERRYCOOIGGFUEMAGOLGORECWIEELJTPSFEUCJHRBADJRI+ES+EWTSZ+ABHE | REEWFERRYCOOIGGFUEMAGOLGORECWIEELJTPSFEUCJHRBADJRI+ES+EWTSZ+ABHE | THE RACE IS NOT TO THE SWIFT NOR THE BATTLE TO THE STRONG BUT TO THOSE WHO ENDURE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
sigaba-074 | CMRIOHBBGJRJNZHT | CMRIOHBBGJRJNZHT | ALL IS LOST RETREAT | sigaba | sigaba | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
kryha-v2-0218 | PAHQIQLWOXXAGZDWPOCTQXVVIDELQVSCEBPJWMZZYFTHCCXHIXIRSFSHNWXJAUKHZQGXJRMAMZZXJL | PAHQIQLWOXXAGZDWPOCTQXVVIDELQVSCEBPJWMZZYFTHCCXHIXIRSFSHNWXJAUKHZQGXJRMAMZZXJL | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-1438 | HMGMNTE HNTGQ ATO QTDMG VBIDORSNH QAM HNMTQ NBVMN BO GJW JKMG PNJF BQO OJSNIM QJ QAM OMT | HMGMNTE HNTGQ ATO QTDMG VBIDORSNH QAM HNMTQ NBVMN BO GJW JKMG PNJF BQO OJSNIM QJ QAM OMT | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 72 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0011976 | INDEX OFCOI NCIDX NCEME ASURZ SLETT ERFRE QUENC YDIST RIBUT IONTX EFOUZ SQUAR ECIPX ERUSX STWOK EYWOR DPOLY BIUSS QUARE SMODZ RNENC RYPTX ONISN OTBRO KENBY LETTE RFREX UENCY CRYPT OGRAX HYREW ARDSZ ATIEX CEAND CAREZ ULTHI NKING PERHA PSBEC | INDEX OFCOI NCIDX NCEME ASURZ SLETT ERFRE QUENC YDIST RIBUT IONTX EFOUZ SQUAR ECIPX ERUSX STWOK EYWOR DPOLY BIUSS QUARE SMODZ RNENC RYPTX ONISN OTBRO KENBY LETTE RFREX UENCY CRYPT OGRAX HYREW ARDSZ ATIEX CEAND CAREZ ULTHI NKING PERHA PSBEC | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PERHAPS | commercial_code | commercial_code | null | {} | hard | en | 200 | 200 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
kryptos-v2-0071 | UMTLERQZIUEREKEZWBFPEAFPGAHWJYMEVJIYXUKQFJGRMILMDMMELYEOVJNJLQG | UMTLERQZIUEREKEZWBFPEAFPGAHWJYMEVJIYXUKQFJGRMILMDMMELYEOVJNJLQG | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0451 | DUTHJDQLEXQMFWDVFUFITGLBHMFWDVFUEOKAETMDQTFETEFOKDVENMFWFCXPRFQBNKCQQPLMP | DUTHJDQLEXQMFWDVFUFITGLBHMFWDVFUEOKAETMDQTFETEFOKDVENMFWFCXPRFQBNKCQQPLMP | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
vic-v2-0071 | 839183905809191808991189808548386908328086914867580910192820914811129104869119087804844867898085193804227192591 | 839183905809191808991189808548386908328086914867580910192820914811129104869119087804844867898085193804227192591 | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 111 | 111 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0748 | HNNKSVAOEQMUNKPKAXUDGAFOMVKUHTVEAFZJCXNCRXBNYFXNCETWZBVKPVDBQOULCRGCJQMGFODQFAHUZSINGBIOBHDRNQMCQIKYZVAMHZKESPQSWKJIBBPKKLYUUZDWHUGAPSDT | HNNKSVAOEQMUNKPKAXUDGAFOMVKUHTVEAFZJCXNCRXBNYFXNCETWZBVKPVDBQOULCRGCJQMGFODQFAHUZSINGBIOBHDRNQMCQIKYZVAMHZKESPQSWKJIBBPKKLYUUZDWHUGAPSDT | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-285 | YCALRSGJWFLWEAVAIGMKRABGCBOALBYLCSFALHWIYGMKLCSFAGAK | YCALRSGJWFLWEAVAIGMKRABGCBOALBYLCSFALHWIYGMKLCSFAGAK | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CRYPTIC"
} | advanced | en | 52 | 52 | cipher_museum | 0.2 | public | null | null |
cda-0013789 | - .... . / -.. . - . -.-. - .. ...- . / ... - ..- -.. .. . ... / .--. .- - - . .-. -. ... / -... . ..-. --- .-. . / -- .- -.- .. -. --. / -.-. .-.. .- .. -- ... / .- / ... -.-. -.-- - .- .-.. . / .. ... / .- / .-. --- -.. / ..- ... . -.. / -... -.-- / ... .--. .- .-. - .- -. ... / - --- / . -. -.-. .-. -.-- .--. - / --... | - .... . / -.. . - . -.-. - .. ...- . / ... - ..- -.. .. . ... / .--. .- - - . .-. -. ... / -... . ..-. --- .-. . / -- .- -.- .. -. --. / -.-. .-.. .- .. -- ... / .- / ... -.-. -.-- - .- .-.. . / .. ... / .- / .-. --- -.. / ..- ... . -.. / -... -.-- / ... .--. .- .-. - .- -. ... / - --- / . -. -.-. .-. -.-- .--. - / --... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | morse_code | morse_code | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0017018 | 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66... | 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | wallis_cipher | wallis_cipher | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
typex-v3-0010 | LQVVUVHYLJLMJEWD | LQVVUVHYLJLMJEWD | PER ASPERA AD ASTRA | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0004524 | ALTC RIAE OTEM SGPO AEAM OSRN NHRC ERNT RIEG ANSD EISL RRDI RXXI BISO SBFL CYUO URNE CXXP DAET BTPA NAIE EAPG AXXT ERDC WTTC | ALTC RIAE OTEM SGPO AEAM OSRN NHRC ERNT RIEG ANSD EISL RRDI RXXI BISO SBFL CYUO URNE CXXP DAET BTPA NAIE EAPG AXXT ERDC WTTC | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | stager_route | stager_route | null | {
"cols": 10
} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
geheimschreiber-v2-0329 | UBQCZYWSBNKRSNLTZDIJZIQIZSDBERDFAEKRTYMAZAWDZSFFGLIYZVQHMUBCBDFRZBCIURXBXQTKT | UBQCZYWSBNKRSNLTZDIJZIQIZSDBERDFAEKRTYMAZAWDZSFFGLIYZVQHMUBCBDFRZBCIURXBXQTKT | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0399 | PLDBFGQMXETQRNLUTUOQBE | PLDBFGQMXETQRNLUTUOQBE | THE COMPASS POINTS TRUE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
kl7-229 | KFPPSIPGGJKOSRVHDCHQVTBLWKWTJCJWLVZUGLDGLKDGXCNIJYXTEXY | KFPPSIPGGJKOSRVHDCHQVTBLWKWTJCJWLVZUGLDGLKDGXCNIJYXTEXY | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | kl7 | kl7 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
red-type-a-v3-0103 | MAHBIOMNJEIPGIZTLEWHYSABRIFOVITITUXUJXPIKYQDUKKOZLIBAQIWAFUTGIRUQIQVCALPXHOLINCEZYECIVSMIBUHVMKUMDOVOBOBYTIBPBTIGWQIMJOFIIHIHJBITISVOBBEDDIJNERIGKUMAHLEPIWOAQZITNOWIJYQITKENUXKAUQYGH | MAHBIOMNJEIPGIZTLEWHYSABRIFOVITITUXUJXPIKYQDUKKOZLIBAQIWAFUTGIRUQIQVCALPXHOLINCEZYECIVSMIBUHVMKUMDOVOBOBYTIBPBTIGWQIMJOFIIHIHJBITISVOBBEDDIJNERIGKUMAHLEPIWOAQZITNOWIJYQITKENUXKAUQYGH | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0268 | FWSMVPGOMXUMXB | FWSMVPGOMXUMXB | COVER MY RETREAT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0017654 | 821 825 854 858 842 853 826 808 801 834 999 808 825 846 821 814 853 855 999 800 852 812 999 857 813 800 806 821 814 853 856 999 839 843 859 999 847 851 842 859 813 808 857 824 842 840 999 832 813 852 807 831 823 843 816 815 854 999 846 851 824 839 806 826 845 835 813 999 856 801 873 856 999 859 821 813 999 855 872 856 ... | 821 825 854 858 842 853 826 808 801 834 999 808 825 846 821 814 853 855 999 800 852 812 999 857 813 800 806 821 814 853 856 999 839 843 859 999 847 851 842 859 813 808 857 824 842 840 999 832 813 852 807 831 823 843 816 815 854 999 846 851 824 839 806 826 845 835 813 999 856 801 873 856 999 859 821 813 999 855 872 856 ... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | culper_ring | culper_ring | null | {} | hard | en | 110 | 110 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
commercial-code-v2-0098 | ZUZUZ PAZUZ BAZUZ XUZUZ ZUZUZ PAZUZ LAZUZ CAZUZ GAZUZ WAZUZ ZAZUZ GAZUZ XUZUZ ZUZUZ JAZUZ BEZUZ LAZUZ FAZUZ BAZUZ RAZUZ ZAZUZ XUZUZ ZUZUZ PAZUZ GAZUZ XUZUZ ZUZUZ TAZUZ GAZUZ BEZUZ TAZUZ PAZUZ GAZUZ XUZUZ ZUZUZ CEZUZ GAZUZ WAZUZ XAZUZ XUZUZ ZUZUZ BEZUZ RAZUZ XUZUZ ZUZUZ BAZUZ CEZUZ GAZUZ RAZUZ LAZUZ WAZUZ XUZUZ ZUZUZ QA... | ZUZUZ PAZUZ BAZUZ XUZUZ ZUZUZ PAZUZ LAZUZ CAZUZ GAZUZ WAZUZ ZAZUZ GAZUZ XUZUZ ZUZUZ JAZUZ BEZUZ LAZUZ FAZUZ BAZUZ RAZUZ ZAZUZ XUZUZ ZUZUZ PAZUZ GAZUZ XUZUZ ZUZUZ TAZUZ GAZUZ BEZUZ TAZUZ PAZUZ GAZUZ XUZUZ ZUZUZ CEZUZ GAZUZ WAZUZ XAZUZ XUZUZ ZUZUZ BEZUZ RAZUZ XUZUZ ZUZUZ BAZUZ CEZUZ GAZUZ RAZUZ LAZUZ WAZUZ XUZUZ ZUZUZ QA... | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 560 | 671 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0120 | XYOILYU WC WIL TXEEU | XYOILYU WC WIL TXEEU | ARCHERS TO THE WALLS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 17 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0012292 | BURWGAQLDAXETJODTMCFKTYWIRJDKMCFNOMOQRJSHHWFSDDNWHKOWVZEAXXSZDZDE | BURWGAQLDAXETJODTMCFKTYWIRJDKMCFNOMOQRJSHHWFSDDNWHKOWVZEAXXSZDZDE | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH SLOWLY | one_time_pad | one_time_pad | null | {} | medium | en | 65 | 65 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
two-square-v2-0390 | TOAOFNACXRXBLLKEFTTAARCE | TOAOFNACXRXBLLKEFTTAARCE | TORPEDO AWAY ALL HANDS BRACE | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
jn25-164 | 22349 22356 22349 22357 22349 22358 22354 22345 22352 22369 22357 22369 22348 22349 22345 22352 22367 22345 22354 22353 22359 22358 22354 22342 22349 22341 22345 22357 22349 22343 22353 22345 22340 22359 22359 22354 22345 22358 22348 22354 22342 22349 22347 22352 22343 22357 22343 22358 22345 22356 22343 22353 22347 22... | 22349 22356 22349 22357 22349 22358 22354 22345 22352 22369 22357 22369 22348 22349 22345 22352 22367 22345 22354 22353 22359 22358 22354 22342 22349 22341 22345 22357 22349 22343 22353 22345 22340 22359 22359 22354 22345 22358 22348 22354 22342 22349 22347 22352 22343 22357 22343 22358 22345 22356 22343 22353 22347 22... | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | jn25 | jn25 | codebook | {
"type": "additive",
"value": "12345"
} | expert | en | 285 | 341 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-192 | HCCJQSCIHTHOEQSBIJTG | HCCJQSCIHTHOEQSBIJTG | CIPHER KEY CHANGED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
m209-175 | ZHALELAALYKWCKCSBYNXNESAYIXMGANZZVDKDDKYDTALIWQKYARKJXAHLILX | ZHALELAALYKWCKCSBYNXNESAYIXMGANZZVDKDDKYDTALIWQKYARKJXAHLILX | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
argenti-v3-0186 | 84 17 44 71 67 83 75 22 75 82 28 26 77 16 63 15 20 25 23 26 28 81 56 83 22 13 20 34 37 41 44 89 63 25 83 75 66 28 60 77 72 22 18 69 20 44 37 17 70 67 83 26 41 71 72 23 25 17 56 33 67 23 82 41 88 72 66 41 44 89 37 18 20 27 56 83 20 83 11 20 67 84 72 75 83 | 84 17 44 71 67 83 75 22 75 82 28 26 77 16 63 15 20 25 23 26 28 81 56 83 22 13 20 34 37 41 44 89 63 25 83 75 66 28 60 77 72 22 18 69 20 44 37 17 70 67 83 26 41 71 72 23 25 17 56 33 67 23 82 41 88 72 66 41 44 89 37 18 20 27 56 83 20 83 11 20 67 84 72 75 83 | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 170 | 254 | cipher_museum | 2.0 | public | null | null |
cda-0005676 | HJUWSWOJIU MTBUSGI RJX NZWZFDRT PRX UXVBNMEUBB | HJUWSWOJIU MTBUSGI RJX NZWZFDRT PRX UXVBNMEUBB | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
two-square-v3-0110 | THBTIEHRBEGINS | THBTIEHRBEGINS | THE SIEGE BEGINS | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-vi-0122 | LNLRDOTSAIAOOOINOEGNALGYOTDAYTUAEBNTNWCMWSULRDRESOTLALENYANHHHDNAEIWALEUCTTUK | LNLRDOTSAIAOOOINOEGNALGYOTDAYTUAEBNTNWCMWSULRDRESOTLALENYANHHHDNAEIWALEUCTTUK | CALL TO ME AND I WILL ANSWER YOU AND TELL YOU GREAT AND UNSEARCHABLE THINGS THAT YOU DO NOT KNOW | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "PYTHON"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-v2-0020 | AABAA BABBA BAABA BAAAA AAAAA AAABA BAABA ABAAA ABBAB ABBAA ABBBA ABBAB ABAAA ABBAA BAABA AAABA AABBB AAAAA ABBAA AABBA AABAA AAABB | AABAA BABBA BAABA BAAAA AAAAA AAABA BAABA ABAAA ABBAB ABBAA ABBBA ABBAB ABAAA ABBAA BAABA AAABA AABBB AAAAA ABBAA AABBA AABAA AAABB | EXTRACTION POINT CHANGED | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 110 | 131 | cipher_museum | 2.0 | public | null | null |
m94-v2-0127 | RGXBQVKDWIS | RGXBQVKDWIS | KNOW THYSELF | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0106 | OMVMZITWZLMZAVCUJMZWVMITTKWUUCVQKIBQWVAAPITTJMMVKZGXBMLCAQVOBPMIXXZWDMLKQXPMZLQAS | OMVMZITWZLMZAVCUJMZWVMITTKWUUCVQKIBQWVAAPITTJMMVKZGXBMLCAQVOBPMIXXZWDMLKQXPMZLQAS | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0018605 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w20⟩ ⟨a07⟩ ⟨w32⟩ ⟨w26⟩ ⟨w04⟩ ⟨w08⟩ ⟨w04⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a19⟩ ⟨w10⟩ ⟨a25⟩ ⟨w10⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w14⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w20⟩ ⟨a07⟩ ⟨w32⟩ ⟨w26⟩ ⟨w04⟩ ⟨w08⟩ ⟨w04⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a19⟩ ⟨w10⟩ ⟨a25⟩ ⟨w10⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w14⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | babington | babington | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
vigenere-v2-0342 | NAKRBYFEGHQWDOMLHETBXAPEEEWTQXFRAXCGJPAXCPFTMXCWXEKXOIDOWXOFZTAHXETPAXWMQPXL | NAKRBYFEGHQWDOMLHETBXAPEEEWTQXFRAXCGJPAXCPFTMXCWXEKXOIDOWXOFZTAHXETPAXWMQPXL | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
affine-v2-0409 | DWPQ DQRQ DQMQ | DWPQ DQRQ DQMQ | VENI VIDI VICI | affine | affine | substitution | {
"a": 5,
"b": 2
} | beginner | en | 12 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0016221 | 10.1.1 14.2.10 9.1.10 12.1.8 7.4.6 10.4.1 1.5.10 8.5.10 13.5.6 10.3.2 11.3.10 1.1.4 14.4.6 18.1.3 13.5.1 14.3.1 10.3.2 13.1.6 19.5.8 3.6.4 15.2.3 4.1.9 2.3.1 5.6.1 12.5.10 6.3.8 17.2.7 12.3.2 4.1.10 11.1.8 17.2.3 4.1.8 5.4.2 4.6.3 12.1.10 7.3.2 2.1.6 11.5.6 19.5.6 6.1.4 18.1.3 17.4.6 4.1.5 4.4.9 15.4.6 2.6.10 19.1.1 7.... | 10.1.1 14.2.10 9.1.10 12.1.8 7.4.6 10.4.1 1.5.10 8.5.10 13.5.6 10.3.2 11.3.10 1.1.4 14.4.6 18.1.3 13.5.1 14.3.1 10.3.2 13.1.6 19.5.8 3.6.4 15.2.3 4.1.9 2.3.1 5.6.1 12.5.10 6.3.8 17.2.7 12.3.2 4.1.10 11.1.8 17.2.3 4.1.8 5.4.2 4.6.3 12.1.10 7.3.2 2.1.6 11.5.6 19.5.6 6.1.4 18.1.3 17.4.6 4.1.5 4.4.9 15.4.6 2.6.10 19.1.1 7.... | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | arnold_andre | arnold_andre | null | {} | hard | en | 89 | 89 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
straddling-checkerboard-v2-0296 | 957410213218222916764829223202223502242522802122142534252273128816462273220413422212214252072456922 | 957410213218222916764829223202223502242522802122142534252273128816462273220413422212214252072456922 | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0080 | 41 24 45 66 51 14 32 82 43 39 23 57 30 72 51 73 22 25 53 66 52 88 30 71 22 79 16 14 41 88 21 72 51 52 82 22 25 66 88 44 65 30 36 22 21 75 32 51 57 53 13 65 30 73 16 71 14 57 51 69 43 24 45 16 30 44 32 39 82 13 88 75 72 51 73 41 22 87 66 88 25 34 | 41 24 45 66 51 14 32 82 43 39 23 57 30 72 51 73 22 25 53 66 52 88 30 71 22 79 16 14 41 88 21 72 51 52 82 22 25 66 88 44 65 30 36 22 21 75 32 51 57 53 13 65 30 73 16 71 14 57 51 69 43 24 45 16 30 44 32 39 82 13 88 75 72 51 73 41 22 87 66 88 25 34 | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 164 | 245 | cipher_museum | 2.0 | public | null | null |
m94-133 | GAONPSQNQYFZRJE | GAONPSQNQYFZRJE | ENEMY FORCES NEAR | m94 | m94 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
nomenclator-v3-0032 | 60 19 08 15 20 08 05 01 18 04 18 15 21 14 04 60 23 15 18 12 04 | 60 19 08 15 20 08 05 01 18 04 18 15 21 14 04 60 23 15 18 12 04 | THE SHOT HEARD ROUND THE WORLD | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
cda-0019251 | 842 845 812 839 999 855 844 860 852 807 813 999 857 843 842 834 856 999 801 835 833 843 867 999 825 840 810 813 847 812 841 810 814 840 858 999 864 812 853 824 815 826 806 800 857 825 844 841 999 | 842 845 812 839 999 855 844 860 852 807 813 999 857 843 842 834 856 999 801 835 833 843 867 999 825 840 810 813 847 812 841 810 814 840 858 999 864 812 853 824 815 826 806 800 857 825 844 841 999 | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | culper_ring | culper_ring | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
affine-v3-1329 | BHC YKFC XUPACJ JCCD AR BHC ARBCFFAOCRQC EOCRQS DEIICJ NABEF ICQPCBI BK BHC KBHCP IAJC VKP SCEPI | BHC YKFC XUPACJ JCCD AR BHC ARBCFFAOCRQC EOCRQS DEIICJ NABEF ICQPCBI BK BHC KBHCP IAJC VKP SCEPI | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 80 | 96 | cipher_museum | 2.0 | public | null | null |
caesar-de-110 | RDM RZMYZI FVHKAZI PIY RDM RZMYZI NDZBZI | RDM RZMYZI FVHKAZI PIY RDM RZMYZI NDZBZI | WIR WERDEN KAMPFEN UND WIR WERDEN SIEGEN | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | de | 34 | 40 | cipher_museum | 0.2 | public | null | null |
wallis-cipher-v2-0109 | 90 45 56 91 90 55 61 54 63 56 31 42 53 54 91 90 10 23 56 91 90 63 54 14 53 56 24 54 34 55 81 10 33 26 56 43 91 90 89 72 91 90 55 61 54 91 90 49 85 28 10 56 82 91 90 24 55 87 10 54 43 91 90 42 31 91 90 81 76 56 63 33 37 87 91 90 28 34 91 110 90 48 89 85 22 53 54 24 43 91 90 81 24 43 56 40 59 60 54 21 91 90 87 50 14 56 8... | 90 45 56 91 90 55 61 54 63 56 31 42 53 54 91 90 10 23 56 91 90 63 54 14 53 56 24 54 34 55 81 10 33 26 56 43 91 90 89 72 91 90 55 61 54 91 90 49 85 28 10 56 82 91 90 24 55 87 10 54 43 91 90 42 31 91 90 81 76 56 63 33 37 87 91 90 28 34 91 110 90 48 89 85 22 53 54 24 43 91 90 81 24 43 56 40 59 60 54 21 91 90 87 50 14 56 8... | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 437 | 654 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0168 | DDDFGXDFAGDGADGDDDAFAXAXFAAAAXAADGDXDGGXGAADDDGFDGAXFGAXDDAFAAADFXDAAFDXADGGXAAFDGDGAGFXGXGFAGAGAAFGXFDAXDXAAFGGGGGFAAFGDGAAAXGAGXGXAGAXFXFAXDGDDGAAGAAGDADFAA | DDDFGXDFAGDGADGDDDAFAXAXFAAAAXAADGDXDGGXGAADDDGFDGAXFGAXDDAFAAADFXDAAFDXADGGXAAFDGDGAGFXGXGFAGAGAAFGXFDAXDXAAFGGGGGFAAFGDGAAAXGAGXGXAGAXFXFAXDGDDGAAGAAGDADFAA | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 158 | 158 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0120 | BBIPQTDEPNANGYHX | BBIPQTDEPNANGYHX | CHART THE UNKNOWN | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
diana-v3-0338 | SRXEZZHHHHNJPVEEKA | SRXEZZHHHHNJPVEEKA | TREASURE BURIED HERE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1269 | JXU XQHREH YI SBUQH | JXU XQHREH YI SBUQH | THE HARBOR IS CLEAR | caesar | caesar | substitution | {
"type": "shift",
"value": 16
} | beginner | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0016081 | ⟨w08⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a01⟩ ⟨a17⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w26⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨a23⟩ ⟨w20⟩ ⟨a01⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a17⟩ ⟨w... | ⟨w08⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a01⟩ ⟨a17⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w26⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨a23⟩ ⟨w20⟩ ⟨a01⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a17⟩ ⟨w... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | babington | babington | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0016991 | ⌐· ┌· L └· X· L ─ r ⌒· ⌐ ─ ⌐ └ ⌒· X Γ· X r ⌐ ─ ┌· L K· L ⌐ └ ⌒ L ⌐ ┐ r Γ· ┐· r· L ┌· X ⌐· ⌐ Γ· └ r └ ┘· X L Γ Γ· X ⌐ ┐· ┘· X K X· ┌· L ─ ┘· K ⌐ X └ ┘· ¬· ⌐ ─ K r· L Γ L K L r K Γ· K· L X K X· Γ Γ· L X ┐· ⌐ K K L ┌· ─ X ¬ L ⌐· ┘· ┌· L ┌ ⌐ ┐ Γ· ─ ¬· r └ ⌐ Γ· ┌ X ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ... | ⌐· ┌· L └· X· L ─ r ⌒· ⌐ ─ ⌐ └ ⌒· X Γ· X r ⌐ ─ ┌· L K· L ⌐ └ ⌒ L ⌐ ┐ r Γ· ┐· r· L ┌· X ⌐· ⌐ Γ· └ r └ ┘· X L Γ Γ· X ⌐ ┐· ┘· X K X· ┌· L ─ ┘· K ⌐ X └ ┘· ¬· ⌐ ─ K r· L Γ L K L r K Γ· K· L X K X· Γ Γ· L X ┐· ⌐ K K L ┌· ─ X ¬ L ⌐· ┘· ┌· L ┌ ⌐ ┐ Γ· ─ ¬· r └ ⌐ Γ· ┌ X ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS FAIL CLOSED IS A POSTURE NOT A SLOGAN THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS A STRONG CLAIM NEEDS STRONG EVIDENCE | pigpen | pigpen | null | {} | medium | en | 61 | 61 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
great-cipher-161 | 161 162 137 159 105 170 154 105 168 181 119 178 146 180 164 178 168 160 131 110 163 168 119 104 180 105 170 154 105 168 119 160 131 159 | 161 162 137 159 105 170 154 105 168 181 119 178 146 180 164 178 168 160 131 110 163 168 119 104 180 105 170 154 105 168 119 160 131 159 | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 102 | 135 | cipher_museum | 0.2 | public | null | null |
autokey-v3-0228 | RWMHWKMSZPDI | RWMHWKMSZPDI | GOLD FROM LEAD | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1338 | NBY VCLNBXUS JULUXIR MBIQM NBUN WIFFCMCIHM CH BUMB ZOHWNCIHM IWWOL ZUL MIIHYL NBUH YRJYWNYX | NBY VCLNBXUS JULUXIR MBIQM NBUN WIFFCMCIHM CH BUMB ZOHWNCIHM IWWOL ZUL MIIHYL NBUH YRJYWNYX | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 78 | 91 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0649 | PALHLPVRATQKUNZRLU | PALHLPVRATQKUNZRLU | CONTACT HAS BEEN MADE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ROYAL"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0448 | GAGAAFDFDDGDDXGXVFAFADGGGFXXXXVFVXVVVFFDVDDDDAFDAA | GAGAAFDFDDGDDXGXVFAFADGGGFXXXXVFVXVVVFFDVDDDDAFDAA | THE SHOT HEARD ROUND THE WORLD | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 50 | 50 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0186 | KDPKSBOPISE4QLPIQWCU4ZMBVVF7L3JKUW42QPQU5JYPFHVW4G2FKU5M2ATPR63GISM76 | KDPKSBOPISE4QLPIQWCU4ZMBVVF7L3JKUW42QPQU5JYPFHVW4G2FKU5M2ATPR63GISM76 | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0181 | YRADQQTLNBKEZMQNCXENPPEWSBZCWBVCBEYTELDBQFTYVMVOBACZZVLIZUIYBRJQUILIVPEPRQT | YRADQQTLNBKEZMQNCXENPPEWSBZCWBVCBEYTELDBQFTYVMVOBACZZVLIZUIYBRJQUILIVPEPRQT | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-045 | 7LC7P2CRSPENGM727MPDRLRYL7PRNPVMNZL7BREYQIA3PB | 7LC7P2CRSPENGM727MPDRLRYL7PRNPVMNZL7BREYQIA3PB | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "XMCKL"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0495 | LQODWBHEFBEUQ | LQODWBHEFBEUQ | HONOR ABOVE ALL | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
diana-v3-0416 | SBXJNGKYIMNDKUJPFXJRRUIOZAFMYAOAYPUYDNNYVFERXAYFLDVXLNPLHAVXYVVHGKGCAUIPUQXBYYFJQMBKQAXLJGFHXQWLPLJEPAZBYFEJNNYULXTRLARHAYAEAQSAXMDOLRWXNDZGLCXRYBCEUUEOEUYEINRAUIPUAXBSXNXNEHUYP | SBXJNGKYIMNDKUJPFXJRRUIOZAFMYAOAYPUYDNNYVFERXAYFLDVXLNPLHAVXYVVHGKGCAUIPUQXBYYFJQMBKQAXLJGFHXQWLPLJEPAZBYFEJNNYULXTRLARHAYAEAQSAXMDOLRWXNDZGLCXRYBCEUUEOEUYEINRAUIPUAXBSXNXNEHUYP | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
cda-0019872 | 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 | 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
atbash-020 | XIBKGLTIZKSB IFOVH | XIBKGLTIZKSB IFOVH | CRYPTOGRAPHY RULES | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 17 | 18 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0105 | TISESHMHWLOIRITATEMAEETLPTLNNRMEONRRNHSIIFEROACDEEEOTOTOMIRSNPHGMLINNREVFTROTIDUCEES | TISESHMHWLOIRITATEMAEETLPTLNNRMEONRRNHSIIFEROACDEEEOTOTOMIRSNPHGMLINNREVFTROTIDUCEES | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0047 | 52 56 75 87 25 59 63 57 88 69 58 49 52 63 59 86 56 27 34 25 98 56 27 47 55 47 96 57 28 37 45 27 66 88 38 27 65 24 87 75 47 39 34 27 77 56 47 46 55 23 79 87 56 30 64 55 75 79 47 50 44 24 67 79 55 59 66 46 59 77 58 58 65 33 59 75 47 67 33 46 88 79 36 27 73 43 67 59 | 52 56 75 87 25 59 63 57 88 69 58 49 52 63 59 86 56 27 34 25 98 56 27 47 55 47 96 57 28 37 45 27 66 88 38 27 65 24 87 75 47 39 34 27 77 56 47 46 55 23 79 87 56 30 64 55 75 79 47 50 44 24 67 79 55 59 66 46 59 77 58 58 65 33 59 75 47 67 33 46 88 79 36 27 73 43 67 59 | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 176 | 263 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0252 | ZSGNVRKXFEFZBQDSC | ZSGNVRKXFEFZBQDSC | THE RAILWAY ARRIVES | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0289 | 19 09 03 21 20 16 01 20 18 09 02 21 19 19 09 20 04 05 21 19 14 15 02 09 19 | 19 09 03 21 20 16 01 20 18 09 02 21 19 19 09 20 04 05 21 19 14 15 02 09 19 | SICUT PATRIBUS SIT DEUS NOBIS | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 50 | 74 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-044 | GZRRIQXRRRQARRFVZEKSHRVVRLEPIZSTJQCGFRGXYEVVKAVSEOMJCESUS | GZRRIQXRRRQARRFVZEKSHRVVRLEPIZSTJQCGFRGXYEVVKAVSEOMJCESUS | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CONFEDERATE"
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
porta-v2-0381 | RMRUFWONOJS | RMRUFWONOJS | HOLD THE LINE | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-149 | WMCDATQLDBMHKDSZDEJCDXQZYUGOZCQBSNQKEUHNZBG | WMCDATQLDBMHKDSZDEJCDXQZYUGOZCQBSNQKEUHNZBG | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "5,3,6,1,4,2"
} | expert | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
diana-v2-0080 | YTJZARWWAOBNPPNPAYKWHVQATMIAQORNKNXNMSWUEFNNUOXDVWUZZDAHGZWZKAADWVDJDCEPKNFAXY | YTJZARWWAOBNPPNPAYKWHVQATMIAQORNKNXNMSWUEFNNUOXDVWUZZDAHGZWZKAADWVDJDCEPKNFAXY | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0318 | EQT STWG KS EQT MKGX ZF EQT VTRZYYZYR KS AZFXKL WYX OYKAMTXRT KS EQT QKMN KYT ZF CYXTGFEWYXZYR | EQT STWG KS EQT MKGX ZF EQT VTRZYYZYR KS AZFXKL WYX OYKAMTXRT KS EQT QKMN KYT ZF CYXTGFEWYXZYR | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 77 | 94 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0040 | 99999 90013 90014 90017 90019 90007 99998 99999 90018 90019 90000 90017 99998 99999 90007 90014 90011 90003 90018 99998 99999 90005 90008 90017 90012 99998 99999 90002 90014 90020 90017 90018 90004 99998 | 99999 90013 90014 90017 90019 90007 99998 99999 90018 90019 90000 90017 99998 99999 90007 90014 90011 90003 90018 99998 99999 90005 90008 90017 90012 99998 99999 90002 90014 90020 90017 90018 90004 99998 | NORTH STAR HOLDS FIRM COURSE | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 170 | 203 | cipher_museum | 2.0 | public | null | null |
rot13-v3-0010 | CRE NFCREN NQ NFGEN | CRE NFCREN NQ NFGEN | PER ASPERA AD ASTRA | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0329 | 33 13 58 22 64 25 61 39 44 11 65 20 63 86 28 41 11 28 38 46 48 75 77 87 42 71 29 44 33 24 69 27 75 59 77 11 28 57 63 67 65 29 38 64 25 87 16 63 39 42 27 11 33 13 58 22 61 67 69 77 37 27 28 87 36 75 20 77 29 48 49 59 64 71 44 11 65 | 33 13 58 22 64 25 61 39 44 11 65 20 63 86 28 41 11 28 38 46 48 75 77 87 42 71 29 44 33 24 69 27 75 59 77 11 28 57 63 67 65 29 38 64 25 87 16 63 39 42 27 11 33 13 58 22 61 67 69 77 37 27 28 87 36 75 20 77 29 48 49 59 64 71 44 11 65 | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 154 | 230 | cipher_museum | 2.0 | public | null | null |
cda-0006119 | ROJUCDS XRAYFURY FOPRUJAWOJS WO A KWYJUWZFJWCO | ROJUCDS XRAYFURY FOPRUJAWOJS WO A KWYJUWZFJWCO | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | monoalphabetic | monoalphabetic | null | {
"alphabet": "AZPKRTHQWNEIXOCDLUYJFBGVSM"
} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
chaocipher-v2-0463 | XEOTYLGYSZQWIFMLZIMURJFALOZQWPGMKLOFNWGGILHBMSTYKHCJWOUOZKHLRSXONRNRHDVIZVNXWVLZI | XEOTYLGYSZQWIFMLZIMURJFALOZQWPGMKLOFNWGGILHBMSTYKHCJWOUOZKHLRSXONRNRHDVIZVNXWVLZI | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
babington-v2-0065 | ⟨w20⟩ ⟨w26⟩ ⟨n04⟩ ⟨w01⟩ ⟨n04⟩ ⟨a02⟩ ⟨a14⟩ ⟨w20⟩ ⟨a02⟩ ⟨w16⟩ ⟨a14⟩ ⟨a20⟩ ⟨w18⟩ ⟨w28⟩ ⟨w28⟩ ⟨w01⟩ ⟨w07⟩ ⟨a14⟩ ⟨w02⟩ ⟨w28⟩ | ⟨w20⟩ ⟨w26⟩ ⟨n04⟩ ⟨w01⟩ ⟨n04⟩ ⟨a02⟩ ⟨a14⟩ ⟨w20⟩ ⟨a02⟩ ⟨w16⟩ ⟨a14⟩ ⟨a20⟩ ⟨w18⟩ ⟨w28⟩ ⟨w28⟩ ⟨w01⟩ ⟨w07⟩ ⟨a14⟩ ⟨w02⟩ ⟨w28⟩ | CONTACT HAS BEEN MADE | babington | babington | nomenclator | {
"type": "seed",
"value": "SCOTLAND"
} | expert | en | 100 | 119 | cipher_museum | 2.0 | public | null | null |
cda-0020646 | FRIEZ MANEX TIMAX EDKEZ LENGT HFROM STATZ STICS THEPX AYFAI RCIPZ ERENX RYPTS PAIRZ OFLET TERSS IMULT ANEOU SLYPE ERREV IEWAX DREPZ ODUCX BILIT YMATT ERINR ESEAR CHTOX ORROZ | FRIEZ MANEX TIMAX EDKEZ LENGT HFROM STATZ STICS THEPX AYFAI RCIPZ ERENX RYPTS PAIRZ OFLET TERSS IMULT ANEOU SLYPE ERREV IEWAX DREPZ ODUCX BILIT YMATT ERINR ESEAR CHTOX ORROZ | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH TOMORROW | commercial_code | commercial_code | null | {} | hard | en | 145 | 145 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
four-square-132 | EQZLQLBPTHFXUPMAPX | EQZLQLBPTHFXUPMAPX | CRYPTOGRAPHY RULES | four_square | four_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
vigenere-v3-1449 | VVYCOXHQILXOJMUCHVLUVFOHUTNSWGBRLZPQJYKHKPQFXKHEKQRQZTNENZNYITIJSUITGRFKCKHGPNHBPSUYNOHUWOXJOFCTNCOWAYTGRFHBVSKAQFXJWNMEVCTOSQCBXKHKIVVCJDGCUVUCLHIKBNYITIJSUIT | VVYCOXHQILXOJMUCHVLUVFOHUTNSWGBRLZPQJYKHKPQFXKHEKQRQZTNENZNYITIJSUITGRFKCKHGPNHBPSUYNOHUWOXJOFCTNCOWAYTGRFHBVSKAQFXJWNMEVCTOSQCBXKHKIVVCJDGCUVUCLHIKBNYITIJSUIT | 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 | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0086 | 01 12 12 16 05 18 19 15 14 19 02 15 18 14 15 18 14 01 20 21 18 01 12 09 26 05 04 64 60 21 14 09 20 05 04 19 20 01 20 05 19 01 18 05 03 09 20 09 26 05 14 19 19 21 02 10 05 03 20 63 05 17 21 01 12 16 18 15 20 05 03 20 09 15 14 | 01 12 12 16 05 18 19 15 14 19 02 15 18 14 15 18 14 01 20 21 18 01 12 09 26 05 04 64 60 21 14 09 20 05 04 19 20 01 20 05 19 01 18 05 03 09 20 09 26 05 14 19 19 21 02 10 05 03 20 63 05 17 21 01 12 16 18 15 20 05 03 20 09 15 14 | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
typex-v2-0252 | IZDLTWMZBFAZBCMJLGPLDCFNFVPPCPXMNPSMWRMTCSAHSQANJTKSCVISEZWMRBRKURNKEMGQVMMSQMSGNJCYBDZPCDTRYGBRKALTSTKJATYQMOYDQTEWYRJOVAORRBDZLIWCBDRAHSZLLXSMFSSMMFIZOTVKLXVBYQGQGETTZXHRFEGKCUZ | IZDLTWMZBFAZBCMJLGPLDCFNFVPPCPXMNPSMWRMTCSAHSQANJTKSCVISEZWMRBRKURNKEMGQVMMSQMSGNJCYBDZPCDTRYGBRKALTSTKJATYQMOYDQTEWYRJOVAORRBDZLIWCBDRAHSZLLXSMFSSMMFIZOTVKLXVBYQGQGETTZXHRFEGKCUZ | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-vf-0004 | EUTOCTEALTSACLASEIOSLAPNTSBL | EUTOCTEALTSACLASEIOSLAPNTSBL | PATIENCE OUTLASTS ALL OBSTACLES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0384 | QDWMIFCLHQRQSHISWADY | QDWMIFCLHQRQSHISWADY | THE LEGIONS STAND READY | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
hill-037 | QAXKWSFKPWEZKORMJRWQVXMIAVCKHFTEETEAZDZVTY | QAXKWSFKPWEZKORMJRWQVXMIAVCKHFTEETEAZDZVTY | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0529 | TRUSTBUTYVFEIR | TRUSTBUTYVFEIR | TRUST BUT VERIFY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0206 | TRLASBDEATOHRECTHRNORTGETNESDCUERTNAGEIDBNIHMBWGTMMFMTEUUAIOOETETEYRTOREIODHYDTNMRHROTEZNCCETBFTLTHHAHTTEGTONOEFIHATASGCHCWARSIROIEAIIHAOFONCTDBLREEJEEVEUOTCNPFFOEEN | TRLASBDEATOHRECTHRNORTGETNESDCUERTNAGEIDBNIHMBWGTMMFMTEUUAIOOETETEYRTOREIODHYDTNMRHROTEZNCCETBFTLTHHAHTTEGTONOEFIHATASGCHCWARSIROIEAIIHAOFONCTDBLREEJEEVEUOTCNPFFOEEN | 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 | double_transposition | double_transposition | transposition | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
cda-0008036 | N ZBQRY PNA PYNFFVSL CNGGREAF OHG VG PNA NYFB OR JEBAT RAGEBCL ZRNFHERF HAPREGNVAGL VA N QVFGEVOHGVBA BCRA FBHEPR GBBYF NYYBJ VAQRCRAQRAG IREVSVPNGVBA NA NSSVAR PVCURE NCCYVRF N YVARNE SHAPGVBA GB RNPU YRGGRE | N ZBQRY PNA PYNFFVSL CNGGREAF OHG VG PNA NYFB OR JEBAT RAGEBCL ZRNFHERF HAPREGNVAGL VA N QVFGEVOHGVBA BCRA FBHEPR GBBYF NYYBJ VAQRCRAQRAG IREVSVPNGVBA NA NSSVAR PVCURE NCCYVRF N YVARNE SHAPGVBA GB RNPU YRGGRE | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 176 | 176 | synthetic_educational | null | null | [] | |
cda-0004355 | TASOE IENMN FTNHE THCCA GTTEO EEFRS IITEH XKONN TIEUD CEEXX YSIES DMEXD TLX | TASOE IENMN FTNHE THCCA GTTEO EEFRS IITEH XKONN TIEUD CEEXX YSIES DMEXD TLX | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | stager_route | stager_route | null | {
"cols": 9
} | medium | en | 63 | 63 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
vic-v2-0305 | 151912355345884386718791103875787812358488928384578288880584787588918937857878143868893370081889225 | 151912355345884386718791103875787812358488928384578288880584787588918937857878143868893370081889225 | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0268 | NOWISOUAOSKULORUIZ | NOWISOUAOSKULORUIZ | NOVUS ORDO SECLORUM | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0594 | DHSIODAITLGULVSHEINUEIEROTOTHGLNOWHTOLSOUEULATOMODFHYDYEOESOONERAUTRLSNU | DHSIODAITLGULVSHEINUEIEROTOTHGLNOWHTOLSOUEULATOMODFHYDYEOESOONERAUTRLSNU | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0016431 | ZHZOK RFYKD EESUI VTQQF KFOSQ XYNRQ DKXMX QTCUM PWQGN SRYPM NKHRA GIMMF YFMNP INCFZ PNWHJ VPIKX RIDPO ZOKYU PEFHO EOKNI YDRTV KJYKK GAIXS OFKPK GGJUR EKZFJ OCLNB VRWBI JIJFS ZECUB CKCOA ASOUV WMFMK PLAHX CTGSX POWIJ QF | ZHZOK RFYKD EESUI VTQQF KFOSQ XYNRQ DKXMX QTCUM PWQGN SRYPM NKHRA GIMMF YFMNP INCFZ PNWHJ VPIKX RIDPO ZOKYU PEFHO EOKNI YDRTV KJYKK GAIXS OFKPK GGJUR EKZFJ OCLNB VRWBI JIJFS ZECUB CKCOA ASOUV WMFMK PLAHX CTGSX POWIJ QF | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | vernam | vernam | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
monoalphabetic-v2-1093 | BPRNTRJLY VJVHYQEQ RXMHKESQ SDR BVLS SDVS LRPSVEJ HRSSRPQ VMMRVP BVP IKPR KBSRJ EJ RJCHEQD SRXS | BPRNTRJLY VJVHYQEQ RXMHKESQ SDR BVLS SDVS LRPSVEJ HRSSRPQ VMMRVP BVP IKPR KBSRJ EJ RJCHEQD SRXS | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 81 | 95 | cipher_museum | 2.0 | public | null | null |
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