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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
stager-route-v3-0135 | SREXTONYXXASOSXXSFLEXXMIBBXXLE | SREXTONYXXASOSXXSFLEXXMIBBXXLE | SONS OF LIBERTY ASSEMBLE | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0224 | 54 26 25 67 48 57 66 54 30 28 26 70 55 58 76 29 39 56 66 67 49 55 29 57 35 37 84 76 64 29 55 38 39 95 68 45 56 37 27 36 56 56 73 38 35 35 48 66 69 84 29 49 65 70 63 80 45 29 49 65 66 65 48 42 29 67 47 39 83 86 76 27 55 46 67 93 50 62 57 29 38 39 87 88 45 50 65 59 46 87 49 45 50 26 55 48 66 56 43 67 28 67 58 56 76 84 29... | 54 26 25 67 48 57 66 54 30 28 26 70 55 58 76 29 39 56 66 67 49 55 29 57 35 37 84 76 64 29 55 38 39 95 68 45 56 37 27 36 56 56 73 38 35 35 48 66 69 84 29 49 65 70 63 80 45 29 49 65 66 65 48 42 29 67 47 39 83 86 76 27 55 46 67 93 50 62 57 29 38 39 87 88 45 50 65 59 46 87 49 45 50 26 55 48 66 56 43 67 28 67 58 56 76 84 29... | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 302 | 452 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-128 | ZSNUTHKMVZSG | ZSNUTHKMVZSG | HOLD POSITION | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
sigaba-v3-0260 | PDFSVLGMCYABNBQWEUGKDCOIJRFMWVXLXUJLBTYKHHAIJXFWIERJSDEHJIPFKSZQNZOCMYTBP | PDFSVLGMCYABNBQWEUGKDCOIJRFMWVXLXUJLBTYKHHAIJXFWIERJSDEHJIPFKSZQNZOCMYTBP | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0015227 | MOIMVUZIZIYTMYMVKSHMXFNYXEMUOJIAHVPIJSNGJBIFLKLSLRSUICZBWWCFZRXHVRYFUTOSJTGLIFKPRUNXE | MOIMVUZIZIYTMYMVKSHMXFNYXEMUOJIAHVPIJSNGJBIFLKLSLRSUICZBWWCFZRXHVRYFUTOSJTGLIFKPRUNXE | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | running_key | running_key | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
rail-fence-es-034 | LHSOIEUPOEAOLMRDVETHCATAAITRASNRFTCNAIAAULAAIARS | LHSOIEUPOEAOLMRDVETHCATAAITRASNRFTCNAIAAULAAIARS | LA HISTORIA ES UN PROFETA CON LA MIRADA VUELTA HACIA ATRAS | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | es | 48 | 48 | cipher_museum | 0.2 | public | null | null |
sigaba-v3-0126 | KYAFSKIXAWWITWZFTG | KYAFSKIXAWWITWZFTG | DEAD MEN TELL NO TALES | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0015440 | --. --- --- -.. / . -.. ..- -.-. .- - .. --- -. .- .-.. / - --- --- .-.. ... / . -..- .--. .-.. .- .. -. / - .... . .. .-. / .-.. .. -- .. - ... / .... .. .-.. .-.. / -.-. .. .--. .... . .-. / ..- ... . ... / .-.. .. -. . .- .-. / .- .-.. --. . -... .-. .- / - --- / . -. -.-. .-. -.-- .--. - / -... .-.. --- -.-. -.- ..... | --. --- --- -.. / . -.. ..- -.-. .- - .. --- -. .- .-.. / - --- --- .-.. ... / . -..- .--. .-.. .- .. -. / - .... . .. .-. / .-.. .. -- .. - ... / .... .. .-.. .-.. / -.-. .. .--. .... . .-. / ..- ... . ... / .-.. .. -. . .- .-. / .- .-.. --. . -... .-. .- / - --- / . -. -.-. .-. -.-- .--. - / -... .-.. --- -.-. -.- ..... | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | morse_code | morse_code | null | {} | hard | en | 89 | 89 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
typex-v3-0103 | QMJQPITUHBSWKMYKAUXCDGKIAGCYQHYLXFDTVRJFWUSTFCAVYVLJTOODMYXBOWCYJBZTGNDKNLNGWNXSVXUHSBSPMSZGEOQCZXJCIIVOELKJTDUOKJXTPTWUFTCVOIJLDGEQNVRGMIGPNTFRVHBPGQSHTZJTYAADXAXSTFXESPHVMYQKAUNWYW | QMJQPITUHBSWKMYKAUXCDGKIAGCYQHYLXFDTVRJFWUSTFCAVYVLJTOODMYXBOWCYJBZTGNDKNLNGWNXSVXUHSBSPMSZGEOQCZXJCIIVOELKJTDUOKJXTPTWUFTCVOIJLDGEQNVRGMIGPNTFRVHBPGQSHTZJTYAADXAXSTFXESPHVMYQKAUNWYW | 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 | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0580 | BKSGGFTLOMPQYLQYHHFKEBPHGFOYHQKBLMXGFYKFPQSRQBFVLOHAQORPOHYOEBAJLOFJJLTAVLKYK | BKSGGFTLOMPQYLQYHHFKEBPHGFOYHQKBLMXGFYKFPQSRQBFVLOHAQORPOHYOEBAJLOFJJLTAVLKYK | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0563 | WLHTOEHLWHHANNSSNIGEDOFNSEFSLOULEEBNEDTLIGGAIIANTDAFHTALDEADEGHSNITHRCNH | WLHTOEHLWHHANNSSNIGEDOFNSEFSLOULEEBNEDTLIGGAIIANTDAFHTALDEADEGHSNITHRCNH | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | double_transposition | double_transposition | transposition | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-024 | JFOPBVWKIFL | JFOPBVWKIFL | TRUST NO ONE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "ROUNDTABLE"
} | advanced | en | 11 | 11 | cipher_museum | 0.2 | public | null | null |
vigenere-122 | HTTLEKQVRL | HTTLEKQVRL | FLEE AT ONCE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
culper-ring-v3-0084 | 145 998 815 804 817 818 814 813 999 998 818 807 800 811 811 999 112 998 807 804 811 803 999 103 253 108 105 998 802 800 815 808 819 800 811 999 998 802 817 808 812 804 999 998 820 813 811 804 818 818 999 113 998 815 817 804 818 804 813 819 812 804 813 819 999 101 105 998 806 817 800 813 803 999 998 809 820 817 824 999 | 145 998 815 804 817 818 814 813 999 998 818 807 800 811 811 999 112 998 807 804 811 803 999 103 253 108 105 998 802 800 815 808 819 800 811 999 998 802 817 808 812 804 999 998 820 813 811 804 818 818 999 113 998 815 817 804 818 804 813 819 812 804 813 819 999 101 105 998 806 817 800 813 803 999 998 809 820 817 824 999 | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 240 | 319 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0068 | 22 11 31 24 31 15 34 35 34 24 33 44 15 14 23 24 43 44 15 31 15 43 13 34 35 15 11 44 44 23 15 23 15 11 51 15 33 43 11 33 14 13 34 33 21 24 42 32 15 14 44 23 11 44 44 23 15 15 11 42 44 23 34 42 12 24 44 43 44 23 15 43 45 33 | 22 11 31 24 31 15 34 35 34 24 33 44 15 14 23 24 43 44 15 31 15 43 13 34 35 15 11 44 44 23 15 23 15 11 51 15 33 43 11 33 14 13 34 33 21 24 42 32 15 14 44 23 11 44 44 23 15 15 11 42 44 23 34 42 12 24 44 43 44 23 15 43 45 33 | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 148 | 221 | cipher_museum | 2.0 | public | null | null |
cda-0021566 | posts after track takes exact raids naval while outer radio daily seeks hours exact local parts batch radio enemy alert knife moved outer needs other | posts after track takes exact raids naval while outer radio daily seeks hours exact local parts batch radio enemy alert knife moved outer needs other | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | 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. |
vernam-v2-0173 | YPARLRBMPTSLRKZPVODHQYVTNZQCIFYUCARDMSQIGUJQPNCWOURDVKSCBQBVSHS | YPARLRBMPTSLRKZPVODHQYVTNZQCIFYUCARDMSQIGUJQPNCWOURDVKSCBQBVSHS | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
voynich-render-040 | jd xcoff skhcg ir gcd adoycdx ore jd xcoff rdvdq xzqqdredq | jd xcoff skhcg ir gcd adoycdx ore jd xcoff rdvdq xzqqdredq | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 48 | 58 | cipher_museum | 0.2 | public | null | null |
hill-v2-0189 | TGXKNDGGXSDASVLYAOGDSVJOOXKKRHRTKWFPPEGGQPJOPCDKLPJFHMHQLPQOJVZVQJVRZOLCJV | TGXKNDGGXSDASVLYAOGDSVJOOXKKRHRTKWFPPEGGQPJOPCDKLPJFHMHQLPQOJVZVQJVRZOLCJV | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
fialka-127 | TFBCEPYTWPSKLYR | TFBCEPYTWPSKLYR | ABORT MISSION NOW | fialka | fialka | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
vic-v3-0286 | 9082241680852826898987484286 | 9082241680852826898987484286 | THE ORACLE HAS SPOKEN | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0624 | TAEYIVNNTHRNRERPTNEEFUEENEHFHTCTETRAOMPTEVCRTOEEIESLSEDRMEIOYNDDVLEIERAANNHMTIYTOLGNIOHTROWNRNTHSIAGTUOEENTIOEHOFGSTISHDVACNFTGUOESHTAWTOPEENEISSNEENGSHGRJTEEEADCMIEETESOENNEDNU | TAEYIVNNTHRNRERPTNEEFUEENEHFHTCTETRAOMPTEVCRTOEEIESLSEDRMEIOYNDDVLEIERAANNHMTIYTOLGNIOHTROWNRNTHSIAGTUOEENTIOEHOFGSTISHDVACNFTGUOESHTAWTOPEENEISSNEENGSHGRJTEEEADCMIEETESOENNEDNU | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0151 | URRFPFPMKMIFOL | URRFPFPMKMIFOL | TRUST BUT VERIFY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0619 | LVWEDXVLIYYLIMXKNUDXKALOAHBRFPHRGPZYLCFQSKPVLGKPZOPHTDRUMOUGZMJWVGOHKZGZQVWLKALUQPMJLPIARJFGLMBZRZZUIEDRTXABVVEGIYINFLKHRHBZPVWNYUDWXNPXRGAVLAYEQTYBSIFRTYRMIEWAFFPFYHREBH | LVWEDXVLIYYLIMXKNUDXKALOAHBRFPHRGPZYLCFQSKPVLGKPZOPHTDRUMOUGZMJWVGOHKZGZQVWLKALUQPMJLPIARJFGLMBZRZZUIEDRTXABVVEGIYINFLKHRHBZPVWNYUDWXNPXRGAVLAYEQTYBSIFRTYRMIEWAFFPFYHREBH | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "THUNDER"
} | intermediate | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0385 | IRYIHHMIMQXQUUJQSKNNPYNOMFWKGAOLVGFPWJRKYFBRLCOUBHUWNUQNXHPXKPRBUALSKKEDUXDFHU | IRYIHHMIMQXQUUJQSKNNPYNOMFWKGAOLVGFPWJRKYFBRLCOUBHUWNUQNXHPXKPRBUALSKKEDUXDFHU | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0591 | KOWTLK SFW TBO FNNIO MFII FKD CKTUCTOD TBO SFJO MLQEO TBFT BLIDS TBO NIFKOTS CK TBOCQ NFTBS | KOWTLK SFW TBO FNNIO MFII FKD CKTUCTOD TBO SFJO MLQEO TBFT BLIDS TBO NIFKOTS CK TBOCQ NFTBS | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | beginner | en | 75 | 91 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0008 | MVMUGZMBZMIBAVWZBP | MVMUGZMBZMIBAVWZBP | ENEMY RETREATS NORTH | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0236 | 57 29 44 75 24 39 77 11 42 71 64 61 25 69 13 33 28 11 75 20 28 16 59 39 42 11 65 | 57 29 44 75 24 39 77 11 42 71 64 61 25 69 13 33 28 11 75 20 28 16 59 39 42 11 65 | DONT FIRE TILL YOU SEE THE WHITES | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 54 | 80 | cipher_museum | 2.0 | public | null | null |
adfgvx-083 | GDDVGFDDDVGAAAAAADAVFFAFGD | GDDVGFDDDVGAAAAAADAVFFAFGD | THE KING IS DEAD | adfgvx | adfgvx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 26 | 26 | cipher_museum | 0.2 | public | null | null |
two-square-v3-0337 | RMBMQKRLENUKCKNTOTKEQKRSDNIGHTOLAEDBQUOUMNCHRNANREDXEAUBIQPADLAEWBRIERRICY | RMBMQKRLENUKCKNTOTKEQKRSDNIGHTOLAEDBQUOUMNCHRNANREDXEAUBIQPADLAEWBRIERRICY | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0268 | AAXGXADFFXFGAAGGFDAGXGXAFGFGGDGADD | AAXGXADFFXFGAAGGFDAGXGXAFGFGGDGADD | NOVUS ORDO SECLORUM | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
cda-0016390 | 27 50 87 41 91 1 39 22 49 11 82 58 26 52 32 43 48 64 67 92 50 63 1 34 25 1 99 43 25 26 48 81 35 3 41 63 91 4 48 50 43 82 24 33 11 | 27 50 87 41 91 1 39 22 49 11 82 58 26 52 32 43 48 64 67 92 50 63 1 34 25 1 99 43 25 26 48 81 35 3 41 63 91 4 48 50 43 82 24 33 11 | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | homophonic | homophonic | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
great-cipher-v3-0023 | 131 151 137 172 154 119 141 154 123 166 154 174 | 131 151 137 172 154 119 141 154 123 166 154 174 | FULL SAIL AHEAD | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 36 | 47 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0249 | TTEATNIXXXHEGPRSTXXXELRHAMSXXX | TTEATNIXXXHEGPRSTXXXELRHAMSXXX | THE TELEGRAPH TRANSMITS | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
cda-0006484 | BSWWI KUYKN GZDXG DDCQP BZJQF DKFAV TFILQ BCXMY ZRBRK LCXWI AHPIG UWYKH KQGSK ZCSUI FLYXQ OGSYN CWXJX Z | BSWWI KUYKN GZDXG DDCQP BZJQF DKFAV TFILQ BCXMY ZRBRK LCXWI AHPIG UWYKH KQGSK ZCSUI FLYXQ OGSYN CWXJX Z | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | trithemius | trithemius | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
scytale-v3-0244 | GAIYXLISLXRVTEPANALX | GAIYXLISLXRVTEPANALX | GRAVITY EXPLAINS ALL | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0204 | WAAOBISZYOBHDFCDCGSRHVOHKSGVCIZROQHCBZMOQQCFRWBUHCHVOHAOLWAPMKVWQVKSQOBOHHVSGOASHWASKWZZHVOHWHGVCIZRPSQCASOIBWJSFGOZZOKHVWGQOHSUCFWQOZWADSFOHWJSRSTWBSGACFOZRIHM | WAAOBISZYOBHDFCDCGSRHVOHKSGVCIZROQHCBZMOQQCFRWBUHCHVOHAOLWAPMKVWQVKSQOBOHHVSGOASHWASKWZZHVOHWHGVCIZRPSQCASOIBWJSFGOZZOKHVWGQOHSUCFWQOZWADSFOHWJSRSTWBSGACFOZRIHM | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0016891 | ⌐· ┌· Γ· L Γ ┌ ⌐ ─ L X K Γ· ┌ ⌐ K L Γ ┐ L ⌒· └ L ─ ¬· K r· ⌐· ┌· ┘· ┌ X K ⌐ K Γ· X K Γ· r X K r· L ⌐· ┌· Γ· L Γ ┌ ⌐ ─ K L X K X· X L X K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L K ┘· L X K Γ· ┌ ⌐ K L ┐ L ⌒· └ L ─ ¬· K r· ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L ... | ⌐· ┌· Γ· L Γ ┌ ⌐ ─ L X K Γ· ┌ ⌐ K L Γ ┐ L ⌒· └ L ─ ¬· K r· ⌐· ┌· ┘· ┌ X K ⌐ K Γ· X K Γ· r X K r· L ⌐· ┌· Γ· L Γ ┌ ⌐ ─ K L X K X· X L X K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L K ┘· L X K Γ· ┌ ⌐ K L ┐ L ⌒· └ L ─ ¬· K r· ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L ... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | pigpen | pigpen | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
argenti-v3-0048 | 71 57 25 53 45 22 66 44 41 23 16 88 25 75 32 45 22 59 88 57 82 44 16 52 65 51 22 18 88 21 23 72 30 69 43 32 35 53 65 51 79 36 82 22 13 66 75 88 25 55 72 14 41 32 24 52 43 73 66 49 65 39 53 34 44 57 72 25 16 62 32 24 14 57 30 69 75 22 88 73 41 22 65 71 88 16 51 | 71 57 25 53 45 22 66 44 41 23 16 88 25 75 32 45 22 59 88 57 82 44 16 52 65 51 22 18 88 21 23 72 30 69 43 32 35 53 65 51 79 36 82 22 13 66 75 88 25 55 72 14 41 32 24 52 43 73 66 49 65 39 53 34 44 57 72 25 16 62 32 24 14 57 30 69 75 22 88 73 41 22 65 71 88 16 51 | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 174 | 260 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0022 | JPPZIBGALNDJKCME | JPPZIBGALNDJKCME | DIVIDE AND CONQUER | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0259 | JAOTNLQNZVWDTB | JAOTNLQNZVWDTB | SIGNAL FIRES LIT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0013491 | JCBPH TDHHD KMXAG UUXUU VGMHQ WSRPV ZKBVR JJMDG SOWMF KNOBL WWUC | JCBPH TDHHD KMXAG UUXUU VGMHQ WSRPV ZKBVR JJMDG SOWMF KNOBL WWUC | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | one_time_pad | one_time_pad | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
solitaire-v3-0165 | EYCHGHIGKAEBGJUNPYGTDTNHGPIVVDNRXVUXDUTVCQDLKRKHHUCQSFBUZLNEMBBGFXWYCHMDXPQB | EYCHGHIGKAEBGJUNPYGTDTNHGPIVVDNRXVUXDUTVCQDLKRKHHUCQSFBUZLNEMBBGFXWYCHMDXPQB | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0013249 | - .... . / .-.. .. -... .-. .- .-. -.-- / .--. .-. . ... . .-. ...- . ... / -.- -. --- .-- .-.. . -.. --. . / ..-. --- .-. / - .... . / -.-. --- -- -- ..- -. .. - -.-- / -.. .. --. .-. .- .--. .... / .- -. -.. / - .-. .. --. .-. .- .--. .... / ..-. .-. . --.- ..- . -. -.-. .. . ... / . -..- .--. --- ... . / ... .. -- .... | - .... . / .-.. .. -... .-. .- .-. -.-- / .--. .-. . ... . .-. ...- . ... / -.- -. --- .-- .-.. . -.. --. . / ..-. --- .-. / - .... . / -.-. --- -- -- ..- -. .. - -.-- / -.. .. --. .-. .- .--. .... / .- -. -.. / - .-. .. --. .-. .- .--. .... / ..-. .-. . --.- ..- . -. -.-. .. . ... / . -..- .--. --- ... . / ... .. -- .... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | morse_code | morse_code | null | {} | hard | en | 188 | 188 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0021146 | ⟨a19⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a17⟩ ⟨w08⟩ ⟨w26⟩ ⟨a19⟩ ⟨w32⟩ ⟨a17⟩ ⟨w32⟩ ⟨a07⟩ ⟨w08⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w14⟩ ⟨a19⟩ ⟨w32⟩ ⟨a11⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨w10⟩ ⟨w04⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨w14⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w... | ⟨a19⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a17⟩ ⟨w08⟩ ⟨w26⟩ ⟨a19⟩ ⟨w32⟩ ⟨a17⟩ ⟨w32⟩ ⟨a07⟩ ⟨w08⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w14⟩ ⟨a19⟩ ⟨w32⟩ ⟨a11⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨w10⟩ ⟨w04⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨w14⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | babington | babington | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
jefferson-disk-v3-0157 | TZKYEZMAYYEHDXXKEWSZQZIDSZGYXDSOMRNKTZMHNJDTAZGJRRZVPAHSXFJUOUQYFZHFMNEPXX | TZKYEZMAYYEHDXXKEWSZQZIDSZGYXDSOMRNKTZMHNJDTAZGJRRZVPAHSXFJUOUQYFZHFMNEPXX | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
m209-v3-0232 | MVZIVSATMJTLWLI | MVZIVSATMJTLWLI | THE WIND IS WITH US | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0013462 | 52 72 14 67 96 23 25 34 1 70 50 63 45 11 93 60 59 76 81 2 63 63 96 66 22 43 87 76 39 32 40 81 27 58 33 81 21 3 41 63 68 49 72 99 91 78 59 87 22 60 88 23 25 58 93 91 17 33 40 93 14 11 87 66 63 17 22 58 82 52 79 2 15 21 33 50 60 17 48 27 96 63 88 82 67 33 91 67 41 45 70 23 63 76 50 49 25 66 76 15 48 2 87 88 30 33 60 91 2... | 52 72 14 67 96 23 25 34 1 70 50 63 45 11 93 60 59 76 81 2 63 63 96 66 22 43 87 76 39 32 40 81 27 58 33 81 21 3 41 63 68 49 72 99 91 78 59 87 22 60 88 23 25 58 93 91 17 33 40 93 14 11 87 66 63 17 22 58 82 52 79 2 15 21 33 50 60 17 48 27 96 63 88 82 67 33 91 67 41 45 70 23 63 76 50 49 25 66 76 15 48 2 87 88 30 33 60 91 2... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | homophonic | homophonic | null | {} | hard | en | 110 | 110 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
monoalphabetic-v2-1152 | WVWCR HY QCAJWG | WVWCR HY QCAJWG | AWAIT MY SIGNAL | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
purple-v2-0082 | AWVKBTOWJATNCIEEIGYMKEWLKJJKZNBEJNTAZNZEXAXOKYTFXSKXCZOOBNWXGYUZDWGKMAATAGCKBFWEG | AWVKBTOWJATNCIEEIGYMKEWLKJJKZNBEJNTAZNZEXAXOKYTFXSKXCZOOBNWXGYUZDWGKMAATAGCKBFWEG | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0717 | FCTTPFNHOBVZLLQMKXUBOOATFSIAWDFXDBTGYHGZVVIKNHOSCYSOTKONPIMRLOXTORSGJCRHLHVY | FCTTPFNHOBVZLLQMKXUBOOATFSIAWDFXDBTGYHGZVVIKNHOSCYSOTKONPIMRLOXTORSGJCRHLHVY | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0014323 | 59 70 62 23 53 26 46 87 72 93 70 87 93 52 22 99 87 48 4 33 1 11 32 34 22 43 39 22 25 91 33 3 61 58 33 36 14 33 70 21 92 52 49 43 68 3 66 67 32 60 66 72 15 91 88 33 82 14 91 72 80 23 41 35 93 63 17 48 34 48 53 68 22 70 64 43 68 88 48 80 22 41 78 59 60 17 25 17 23 63 39 1 49 70 60 22 53 25 66 25 11 22 30 61 68 17 48 82 3... | 59 70 62 23 53 26 46 87 72 93 70 87 93 52 22 99 87 48 4 33 1 11 32 34 22 43 39 22 25 91 33 3 61 58 33 36 14 33 70 21 92 52 49 43 68 3 66 67 32 60 66 72 15 91 88 33 82 14 91 72 80 23 41 35 93 63 17 48 34 48 53 68 22 70 64 43 68 88 48 80 22 41 78 59 60 17 25 17 23 63 39 1 49 70 60 22 53 25 66 25 11 22 30 61 68 17 48 82 3... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE ARCHITECTURE SHOULD MAKE MISUSE HARDER HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | homophonic | homophonic | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
double-transposition-222 | YMRAEMSSUOITRAVEPUGCPAATSFISNCOYNCEOIGPIISCAIRMHOTRERCFERTNHORDC | YMRAEMSSUOITRAVEPUGCPAATSFISNCOYNCEOIGPIISCAIRMHOTRERCFERTNHORDC | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | double_transposition | double_transposition | transposition | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 64 | 64 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v3-0444 | DWNAPGSTRMEDQSFNLUPERMJRIPSSMPB | DWNAPGSTRMEDQSFNLUPERMJRIPSSMPB | DONT FIRE TILL YOU SEE THE WHITES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 31 | 31 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0235 | 8854 7467 8603 7654 7467 8437 7467 7529 8100 8437 7467 8603 7654 7467 8437 7467 8206 8437 7467 8528 7467 8038 8603 7194 8603 7720 8781 7467 8528 8100 7529 8603 7654 7467 8685 8038 7720 8603 7467 7401 8528 8603 7194 8603 7467 8528 8100 7529 7194 7974 7467 8437 7720 7338 7194 7720 8038 7590 7467 8038 7467 8437 7194 7911 ... | 8854 7467 8603 7654 7467 8437 7467 7529 8100 8437 7467 8603 7654 7467 8437 7467 8206 8437 7467 8528 7467 8038 8603 7194 8603 7720 8781 7467 8528 8100 7529 8603 7654 7467 8685 8038 7720 8603 7467 7401 8528 8603 7194 8603 7467 8528 8100 7529 7194 7974 7467 8437 7720 7338 7194 7720 8038 7590 7467 8038 7467 8437 7194 7911 ... | 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 | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 656 | 819 | cipher_museum | 2.0 | public | null | null |
lorenz-056 | WETHEPEOPLEOFTHEUNITEDSTATESINORDERTOFORMAMOREPERFECTUNIONESTABLISHJUSTICEINSUREDOMESTICTRANQUILITYPROVIDEFORTHECOMMONDEFENSEPROMOTETHEGENERALWELFARE | WETHEPEOPLEOFTHEUNITEDSTATESINORDERTOFORMAMOREPERFECTUNIONESTABLISHJUSTICEINSUREDOMESTICTRANQUILITYPROVIDEFORTHECOMMONDEFENSEPROMOTETHEGENERALWELFARE | 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 | lorenz | lorenz | machine | {
"type": "seed",
"value": "LORENZ"
} | expert | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0480 | GITOIPPIHFSGEFWXNHT | GITOIPPIHFSGEFWXNHT | MISSION ACCOMPLISHED | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0126 | NTYNPIYGIFFYFTPJOY | NTYNPIYGIFFYFTPJOY | DEAD MEN TELL NO TALES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0520 | VHZVPEMPAKRZACETRHTTFTAIFCFKPIIEEVCPFJREPRJRZEEFLKNZTPVLGIBHEPBGCMYAKCFTCOFJYPDNOQJMXIZTTERGLGIRVLEEHEDJYIENRPMCCLDNRKFGIYEYKGVIZSZWLWMZRZLQCGZNEJUJOCAOGCPEORLKCFTCEFJEQVZRYDCPT | VHZVPEMPAKRZACETRHTTFTAIFCFKPIIEEVCPFJREPRJRZEEFLKNZTPVLGIBHEPBGCMYAKCFTCOFJYPDNOQJMXIZTTERGLGIRVLEEHEDJYIENRPMCCLDNRKFGIYEYKGVIZSZWLWMZRZLQCGZNEJUJOCAOGCPEORLKCFTCEFJEQVZRYDCPT | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
red-type-a-026 | PUZRICWFEBCQCEN | PUZRICWFEBCQCEN | FORWARD MARCH NOW | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYORED"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
nihilist-v2-0463 | 97 46 59 53 45 96 59 49 34 33 66 39 58 34 33 94 59 49 56 26 83 35 68 65 24 74 26 80 66 47 76 28 60 74 45 97 58 57 45 57 105 38 59 32 57 84 28 79 45 65 84 28 76 33 46 76 37 49 36 36 96 26 46 36 57 84 28 79 45 65 84 28 57 34 36 64 48 80 53 36 93 39 49 34 36 104 38 48 42 56 73 58 80 45 53 67 38 87 54 56 76 29 57 42 24 75 ... | 97 46 59 53 45 96 59 49 34 33 66 39 58 34 33 94 59 49 56 26 83 35 68 65 24 74 26 80 66 47 76 28 60 74 45 97 58 57 45 57 105 38 59 32 57 84 28 79 45 65 84 28 76 33 46 76 37 49 36 36 96 26 46 36 57 84 28 79 45 65 84 28 57 34 36 64 48 80 53 36 93 39 49 34 36 104 38 48 42 56 73 58 80 45 53 67 38 87 54 56 76 29 57 42 24 75 ... | THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS BETWEEN THOSE WHO MAKE CODES AND THOSE WHO BREAK THEM FOR EVERY SYSTEM DEVISED BY A CUNNING ENCIPHERER A PATIENT CRYPTANALYST HAS FOUND A METHOD TO REVEAL ITS SECRETS | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 352 | 526 | cipher_museum | 2.0 | public | null | null |
affine-v2-0213 | BIBO GJAZOT BOK TRAKRO PNIHWLBO EJZIG GWN ERLEN GR BGGBHF GWN TNALBO NOZTLB HZUWNA LBHWZON | BIBO GJAZOT BOK TRAKRO PNIHWLBO EJZIG GWN ERLEN GR BGGBHF GWN TNALBO NOZTLB HZUWNA LBHWZON | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 76 | 90 | cipher_museum | 2.0 | public | null | null |
cda-0013204 | YYIY HHRZ MFPO TLUQ VGNP VMNE UDAJ UVET JLII JTIG ELVR ERIB NLLV LWVE PKMJ RACA JUXF IBLR KSQK SIYG HTCS LSEC EAHG EEII QMEH WRDB GXGV HLUN SMBC XLOY TGEC GFZW UENI GC | YYIY HHRZ MFPO TLUQ VGNP VMNE UDAJ UVET JLII JTIG ELVR ERIB NLLV LWVE PKMJ RACA JUXF IBLR KSQK SIYG HTCS LSEC EAHG EEII QMEH WRDB GXGV HLUN SMBC XLOY TGEC GFZW UENI GC | THE INDEX OF COINCIDENCE IS A USEFUL CLUE ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | running_key | running_key | null | {} | hard | en | 134 | 134 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
nomenclator-v2-0238 | 01 12 12 23 01 18 06 01 18 05 09 19 02 01 19 05 04 15 14 04 05 03 05 16 20 09 15 14 08 05 14 03 05 23 08 05 14 01 02 12 05 63 90 23 05 13 21 19 20 19 05 05 13 21 14 01 02 12 05 23 08 05 14 21 19 09 14 07 15 21 18 06 15 18 03 05 19 23 05 13 21 19 20 19 05 05 13 09 14 01 03 20 09 22 05 23 08 05 14 23 05 01 18 05 14 05 01... | 01 12 12 23 01 18 06 01 18 05 09 19 02 01 19 05 04 15 14 04 05 03 05 16 20 09 15 14 08 05 14 03 05 23 08 05 14 01 02 12 05 63 90 23 05 13 21 19 20 19 05 05 13 21 14 01 02 12 05 23 08 05 14 21 19 09 14 07 15 21 18 06 15 18 03 05 19 23 05 13 21 19 20 19 05 05 13 09 14 01 03 20 09 22 05 23 08 05 14 23 05 01 18 05 14 05 01... | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 286 | 428 | cipher_museum | 2.0 | public | null | null |
cda-0018816 | THELI BRARY PRESE RVESK NOWLE DGEFZ RTHEC OMMUZ ITYAB | THELI BRARY PRESE RVESK NOWLE DGEFZ RTHEC OMMUZ ITYAB | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | commercial_code | commercial_code | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
bazeries-v3-0296 | SSNRFTYNCYVRFTDCYQFNRYOFCHPJYBINXLIXEGOJVJTLFFNXOYFNMFYYFYQYNMXOTVIWFNEFYQYEVOXLEFN | SSNRFTYNCYVRFTDCYQFNRYOFCHPJYBINXLIXEGOJVJTLFFNXOYFNMFYYFYQYNMXOTVIWFNEFYQYEVOXLEFN | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0017947 | K ⌒ ┘· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X Γ Γ· ¬· ┌· ⌐ ┐· r· X ⌒ Γ· K r· K ⌒ ┘· ┐· ┘· └ ⌒· ¬ Γ· X· X ⌐ └ ┐· r· ⌐ ¬ L K X ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X K ┘· ┌ ┘· ┌· ┌· ┘· ⌒ | K ⌒ ┘· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X Γ Γ· ¬· ┌· ⌐ ┐· r· X ⌒ Γ· K r· K ⌒ ┘· ┐· ┘· └ ⌒· ¬ Γ· X· X ⌐ └ ┐· r· ⌐ ¬ L K X ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X K ┘· ┌ ┘· ┌· ┌· ┘· ⌒ | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES TOMORROW | pigpen | pigpen | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
kl7-v2-0203 | JIMKZHWAVDXVCJWQKVMKEIAFKYYKNADZHAKFTKERTJYAGWVYMIFUOWICKHDLUTYEPAGVRTKPHAANV | JIMKZHWAVDXVCJWQKVMKEIAFKYYKNADZHAKFTKERTJYAGWVYMIFUOWICKHDLUTYEPAGVRTKPHAANV | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0010866 | MPFHVS KUKAIAFVCC YJ FHN WNLIDN CA OIYZLZ OBPCHSCSP SMVVOE CMCPFHW GE YMEOCEVBV JYW TFKDXZDT EKJVFVO IWN EDVUGQGZ YLZMRCMCJGV ICVVAN CTYCZT SZHAYMO | MPFHVS KUKAIAFVCC YJ FHN WNLIDN CA OIYZLZ OBPCHSCSP SMVVOE CMCPFHW GE YMEOCEVBV JYW TFKDXZDT EKJVFVO IWN EDVUGQGZ YLZMRCMCJGV ICVVAN CTYCZT SZHAYMO | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY ATBASH ENCODES BY REVERSING THE ALPHABET DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | trithemius | trithemius | null | {} | hard | en | 127 | 127 | synthetic_educational | null | null | [] | |
cda-0021175 | 3.18.5 20.6.6 14.19.7 16.45.14 14.16.6 3.2.1 9.34.5 18.37.4 3.17.2 1.40.10 5.42.3 3.37.8 9.25.13 6.16.15 6.2.11 16.48.11 19.22.6 8.34.1 13.25.3 20.19.15 19.4.7 10.7.11 2.46.12 18.25.9 19.8.12 15.33.7 6.26.2 12.42.7 10.19.3 10.19.7 1.22.6 9.30.6 9.21.10 16.12.8 17.5.12 1.41.10 13.47.12 13.9.12 9.16.6 10.28.11 4.21.6 17.... | 3.18.5 20.6.6 14.19.7 16.45.14 14.16.6 3.2.1 9.34.5 18.37.4 3.17.2 1.40.10 5.42.3 3.37.8 9.25.13 6.16.15 6.2.11 16.48.11 19.22.6 8.34.1 13.25.3 20.19.15 19.4.7 10.7.11 2.46.12 18.25.9 19.8.12 15.33.7 6.26.2 12.42.7 10.19.3 10.19.7 1.22.6 9.30.6 9.21.10 16.12.8 17.5.12 1.41.10 13.47.12 13.9.12 9.16.6 10.28.11 4.21.6 17.... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE MESSAGE WAS HIDDEN BUT NOT SECURE | book_cipher | book_cipher | null | {} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
confederate-vigenere-v2-0570 | VHZFPRPQFOHPCMTDDSEYCDEBIYEGPGJFHZQFOHAYUIPORLPUEGOATSVFQLTOYVGUUIDPIQVAIDTEE | VHZFPRPQFOHPCMTDDSEYCDEBIYEGPGJFHZQFOHAYUIPORLPUEGOATSVFQLTOYVGUUIDPIQVAIDTEE | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
m209-v3-0239 | NOQMPASTDBKLFFILZRBRY | NOQMPASTDBKLFFILZRBRY | SONS OF LIBERTY ASSEMBLE | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0258 | ZY LN VTRZYYZYR ZF LN TYX WYX ZY LN TYX ZF LN VTRZYYZYR WF EQT HCTTY KS FUKEF OYTA ATMM | ZY LN VTRZYYZYR ZF LN TYX WYX ZY LN TYX ZF LN VTRZYYZYR WF EQT HCTTY KS FUKEF OYTA ATMM | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 68 | 87 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0162 | SSCKOQLKOBDSGCUFNYOHJKAVLEWSUKYPDASSXIILXBJKCQDSAVCYLGJNHIVXIYFFAQEVLYGRSS | SSCKOQLKOBDSGCUFNYOHJKAVLEWSUKYPDASSXIILXBJKCQDSAVCYLGJNHIVXIYFFAQEVLYGRSS | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0275 | LPOISOHSSEKLNIIPSS | LPOISOHSSEKLNIIPSS | LOOSE LIPS SINK SHIPS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
null-cipher-v3-0092 | that each have of utna tnsc get too year boy our too outa their has | that each have of utna tnsc get too year boy our too outa their has | THE FACTORY ROARS | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 53 | 67 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0492 | COOCOTNFHOHVNCMIMGIUFVSKJEQFIYJQBFSSNIPUQOEEISYJLVIHITDFORJVOGRUWUCEPTEQZH | COOCOTNFHOHVNCMIMGIUFVSKJEQFIYJQBFSSNIPUQOEEISYJLVIHITDFORJVOGRUWUCEPTEQZH | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0015371 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | wallis_cipher | wallis_cipher | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0002398 | GTGHJ SIGGR LCICU EEZCH ANOPD AVQHR IZRUM SBXEK QTVVR TVGCH JIGAD BUQIP SEUZT HVISE KECVT GKVDA BMLFM PANIG NBLOU AHVMB XDWTX UIMMI MCLVV WATZE IYHIS TZRVO EREBX N | GTGHJ SIGGR LCICU EEZCH ANOPD AVQHR IZRUM SBXEK QTVVR TVGCH JIGAD BUQIP SEUZT HVISE KECVT GKVDA BMLFM PANIG NBLOU AHVMB XDWTX UIMMI MCLVV WATZE IYHIS TZRVO EREBX N | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE VIGENERE CIPHER USES A REPEATING KEYWORD | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
cardano-autokey-021 | VALFSZLJKMAKWGWLVH | VALFSZLJKMAKWGWLVH | THE BRIDGE IS SECURED | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CARDANO"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v3-0207 | BETWTIMRWZMHPMNJDVPSFYOXALNJPPNRWWTJLGAPGKXWLVDMCJPVRFFJTFVXALWWGQBQZKFCOZWRRLDGQQWVRHWALXXVDOTPNITNNLJQAASNQVHTRGAPAUCRVIVRTMALWAOTNLDAVGXPWTOKRPGWWVMDKGFVCTOLVTGMQVZKCNPQRHFSVEKSVT | BETWTIMRWZMHPMNJDVPSFYOXALNJPPNRWWTJLGAPGKXWLVDMCJPVRFFJTFVXALWWGQBQZKFCOZWRRLDGQQWVRHWALXXVDOTPNITNNLJQAASNQVHTRGAPAUCRVIVRTMALWAOTNLDAVGXPWTOKRPGWWVMDKGFVCTOLVTGMQVZKCNPQRHFSVEKSVT | 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 | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0004982 | DATPREISSNATNWRTLLRORHCIAEAOEEHICAORTHSIOESPPIITIMAFEINHTSIOLRERNTECHTTOOBOONPOEILTSTAIXBPCADCCEPCTYPAENEELSHCSUYEENRXSUSHBPRAITOTNR | DATPREISSNATNWRTLLRORHCIAEAOEEHICAORTHSIOESPPIITIMAFEINHTSIOLRERNTECHTTOOBOONPOEILTSTAIXBPCADCCEPCTYPAENEELSHCSUYEENRXSUSHBPRAITOTNR | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "DRAGON"
} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
kl7-v3-0402 | AZBZOLRAPZKFPLJWIICOKAWKMCUFZEBFFMGUFMXWPWZVOQARMXJQUEBBBTNAQCGVOASNYMCHRVHIWC | AZBZOLRAPZKFPLJWIICOKAWKMCUFZEBFFMGUFMXWPWZVOQARMXJQUEBBBTNAQCGVOASNYMCHRVHIWC | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
vigenere-la-111 | KVEYMEEQEPSVTIICIIDCB | KVEYMEEQEPSVTIICIIDCB | IN PRINCIPIO ERAT VERBUM | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | la | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0018219 | LLGL RQED GYCM OAHO SLHU JXXW LXBW CADD ZYBR AIIG RWVP NNWL OWLR MOAH OSLP QDVR TLLH LAED TYKY ZNAB JMHS NSSQ NQCW PPMT WAGN SHCI LXDX WVIA VWYG YNBX ZRRZ IOYK PHBH LITE WNLF SDBT XXQF XIGM NQLF FGJN MPEC SXOI UME | LLGL RQED GYCM OAHO SLHU JXXW LXBW CADD ZYBR AIIG RWVP NNWL OWLR MOAH OSLP QDVR TLLH LAED TYKY ZNAB JMHS NSSQ NQCW PPMT WAGN SHCI LXDX WVIA VWYG YNBX ZRRZ IOYK PHBH LITE WNLF SDBT XXQF XIGM NQLF FGJN MPEC SXOI UME | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE BEST LESSONS SHOW WHERE THE METHOD FAILS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | running_key | running_key | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
caesar-v3-1259 | UPY GULCU ALUNCU JFYHU | UPY GULCU ALUNCU JFYHU | AVE MARIA GRATIA PLENA | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 19 | 22 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0688 | ROERAESEIRNTTDASRNOEUETHADWOCWBTGPEIINARLTKLLHYIPFOGAANTMRESFNEEADRNGCALHO | ROERAESEIRNTTDASRNOEUETHADWOCWBTGPEIINARLTKLLHYIPFOGAANTMRESFNEEADRNGCALHO | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014449 | 16 5 5 18 18 5 22 9 5 23 1 14 4 18 5 16 18 15 4 21 3 9 2 9 12 9 20 25 13 1 20 20 5 18 9 14 18 5 19 5 1 18 3 8 3 12 1 19 19 9 3 1 12 3 9 16 8 5 18 19 20 5 1 3 8 23 8 25 13 15 4 5 18 14 19 5 3 21 18 9 20 25 13 1 20 20 5 18 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 9 19 1 21 19 5 6 21 12 3 12 21 5 19 12 15 23 12... | 16 5 5 18 18 5 22 9 5 23 1 14 4 18 5 16 18 15 4 21 3 9 2 9 12 9 20 25 13 1 20 20 5 18 9 14 18 5 19 5 1 18 3 8 3 12 1 19 19 9 3 1 12 3 9 16 8 5 18 19 20 5 1 3 8 23 8 25 13 15 4 5 18 14 19 5 3 21 18 9 20 25 13 1 20 20 5 18 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 9 19 1 21 19 5 6 21 12 3 12 21 5 19 12 15 23 12... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE INDEX OF COINCIDENCE IS A USEFUL CLUE SLOWLY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
monoalphabetic-v3-0006 | TFE DPTES FNJC BGRK | TFE DPTES FNJC BGRK | THE GATES HOLD FIRM | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "PALACE"
} | beginner | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
bifid-es-007 | NUGHRCDWTCYFWLQRYCERE | NUGHRCDWTCYFWLQRYCERE | PATRIA LIBERTAD O MUERTE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | es | 21 | 21 | cipher_museum | 0.2 | public | null | null |
sigaba-v2-0476 | VHORVQFRMWPYOEJIQVTBQOSGOOGXMBWSANRHXOGMIMRXNPYCLBFCJIYYOEJRUQEDMXIIRCBDYRILQP | VHORVQFRMWPYOEJIQVTBQOSGOOGXMBWSANRHXOGMIMRXNPYCLBFCJIYYOEJRUQEDMXIIRCBDYRILQP | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0727 | CTBUKHNPLKVECOWSSFUGHFIJNAEXFDAXBATDIYPKCQHIPNFECRPHMTCZZWSPRUMOGDHKCVDDZBLJMSCLLVFM | CTBUKHNPLKVECOWSSFUGHFIJNAEXFDAXBATDIYPKCQHIPNFECRPHMTCZZWSPRUMOGDHKCVDDZBLJMSCLLVFM | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0262 | EZFLKHLBAXUWVMHDBAIAQ | EZFLKHLBAXUWVMHDBAIAQ | BRIDGE DESTROYED AT DAWN | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
wheatstone-013 | TITGYSJMETPITWM | TITGYSJMETPITWM | ENEMY FORCES NEAR | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "WHEATSTONE"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
atbash-v2-0091 | GSV HVXIVG ORVH YFIRVW YVMVZGS GSV GSRIW UOZTHGLMV LU GSV LOW XSFIXS XLFIGBZIW ZG WZDM GLNLIILD | GSV HVXIVG ORVH YFIRVW YVMVZGS GSV GSRIW UOZTHGLMV LU GSV LOW XSFIXS XLFIGBZIW ZG WZDM GLNLIILD | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0334 | TUIJLOLNYMWFESIPUM | TUIJLOLNYMWFESIPUM | DEAD MEN TELL NO TALES | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0077 | - .-. .- -.. . -.-. .-. .- ..-. - / .. ... / - .... . / .- .-. - / --- ..-. / -.-. --- -. -.. ..- -.-. - .. -. --. / -.-. --- ...- . .-. - / --- .--. . .-. .- - .. --- -. ... / .-- .. - .... --- ..- - / .- .-.. . .-. - .. -. --. / - .... . / --- .--. .--. --- ... .. - .. --- -. / - --- / -.-- --- ..- .-. / .--. .-. . .... | - .-. .- -.. . -.-. .-. .- ..-. - / .. ... / - .... . / .- .-. - / --- ..-. / -.-. --- -. -.. ..- -.-. - .. -. --. / -.-. --- ...- . .-. - / --- .--. . .-. .- - .. --- -. ... / .-- .. - .... --- ..- - / .- .-.. . .-. - .. -. --. / - .... . / --- .--. .--. --- ... .. - .. --- -. / - --- / -.-- --- ..- .-. / .--. .-. . .... | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 233 | 334 | cipher_museum | 2.0 | public | null | null |
hill-v3-0207 | KMCROQRRLCPJIYLQDKUZKOXXLYTSXEPKOUHCINFGOYUPJFIYHPBDBRDBHZXXLYOUEAIBAOGDNWPXZVGGEABDPJOXXXJFWQTQATNNZVMCKWNNLMZOQPNIACPXWSHIUBLYQERZZVQEQPTDHQGWBSQOJFFKMOPANLTADCGEJFCINNEARQUZUICODC | KMCROQRRLCPJIYLQDKUZKOXXLYTSXEPKOUHCINFGOYUPJFIYHPBDBRDBHZXXLYOUEAIBAOGDNWPXZVGGEABDPJOXXXJFWQTQATNNZVMCKWNNLMZOQPNIACPXWSHIUBLYQERZZVQEQPTDHQGWBSQOJFFKMOPANLTADCGEJFCINNEARQUZUICODC | 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 | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
m209-v2-0206 | KWAYYCHAQIAYBQFKYKXYXRPLERAYOYCRYKUYXWJQETYQKKWPIYJVZPOIUWUJXCOBWGOMTXEBVSUXVK | KWAYYCHAQIAYBQFKYKXYXRPLERAYOYCRYKUYXWJQETYQKKWPIYJVZPOIUWUJXCOBWGOMTXEBVSUXVK | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0018732 | 32 34 14 15 42 33 15 33 13 42 54 35 44 24 34 33 24 43 33 34 44 12 42 34 25 15 33 12 54 31 15 44 44 15 42 21 42 15 41 45 15 33 13 54 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 | 32 34 14 15 42 33 15 33 13 42 54 35 44 24 34 33 24 43 33 34 44 12 42 34 25 15 33 12 54 31 15 44 44 15 42 21 42 15 41 45 15 33 13 54 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | polybius | polybius | null | {} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
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