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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cardano-autokey-v2-0025 | FKLMLUVNOZVZND | FKLMLUVNOZVZND | TRUST BUT VERIFY | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0298 | GUDPWDEUGTTSCHDAEAULPQDPQZDYFRVRURTQBEGGQWMHYXJUFOTPFHVSFGKGDCKWHZDOFNPGHXYSAP | GUDPWDEUGTTSCHDAEAULPQDPQZDYFRVRURTQBEGGQWMHYXJUFOTPFHVSFGKGDCKWHZDOFNPGHXYSAP | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0012984 | 44 23 15 12 15 43 44 31 15 43 43 34 33 43 43 23 34 52 52 23 15 42 15 44 23 15 32 15 44 23 34 14 21 11 24 31 43 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 23 24 43 44 34 42 24 13 11 31 13... | 44 23 15 12 15 43 44 31 15 43 43 34 33 43 43 23 34 52 52 23 15 42 15 44 23 15 32 15 44 23 34 14 21 11 24 31 43 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 23 24 43 44 34 42 24 13 11 31 13... | THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | polybius | polybius | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0002906 | OJZA AMZY YPXQ ADXM GIGV GLNA MAHJ RIET CNFX IHTT GUYA GBPD VHHL FRPF ATPC MAJP JCTR LJEW AAAA VTSA MQXU XGSB LJUV HLFR KFXH FCWP NEYL EXNW XACP LNNN TPCM EZWL CFLN LWSF G | OJZA AMZY YPXQ ADXM GIGV GLNA MAHJ RIET CNFX IHTT GUYA GBPD VHHL FRPF ATPC MAJP JCTR LJEW AAAA VTSA MQXU XGSB LJUV HLFR KFXH FCWP NEYL EXNW XACP LNNN TPCM EZWL CFLN LWSF G | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | beaufort | beaufort | null | {
"key": "PATTERN"
} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
bifid-v3-0424 | SDEMFDNWTEWTAOZIS | SDEMFDNWTEWTAOZIS | THE RAILWAY ARRIVES | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0018876 | ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w04⟩ ⟨w28⟩ ⟨a01⟩ ⟨a25⟩ ⟨w32⟩ ⟨a13⟩ ⟨a01⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a23⟩ ⟨a25⟩ ⟨w22⟩ | ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w04⟩ ⟨w28⟩ ⟨a01⟩ ⟨a25⟩ ⟨w32⟩ ⟨a13⟩ ⟨a01⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a23⟩ ⟨a25⟩ ⟨w22⟩ | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | babington | babington | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0015551 | GFFU GHHL DIOS OHJE RVFS HNDD PKHL KOJW ADBG JPES IVMC BCDA OYRE TKAG QAED BCXQ PDSN RUKZ WYUJ DGBE SZ | GFFU GHHL DIOS OHJE RVFS HNDD PKHL KOJW ADBG JPES IVMC BCDA OYRE TKAG QAED BCXQ PDSN RUKZ WYUJ DGBE SZ | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | vernam | vernam | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
jn25-v2-0333 | 21249 21236 21243 21239 21242 21256 21235 21244 21233 21249 21248 21239 21258 21240 21239 21242 21233 21247 21239 21248 21244 21235 21248 21238 21242 21239 21235 21243 21249 21248 21235 21242 21239 21244 21232 21239 21244 21232 21242 21239 21239 21240 21233 21246 21246 21235 21242 21243 21249 21230 21235 21246 21246 21... | 21249 21236 21243 21239 21242 21256 21235 21244 21233 21249 21248 21239 21258 21240 21239 21242 21233 21247 21239 21248 21244 21235 21248 21238 21242 21239 21235 21243 21249 21248 21235 21242 21239 21244 21232 21239 21244 21232 21242 21239 21239 21240 21233 21246 21246 21235 21242 21243 21249 21230 21235 21246 21246 21... | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 405 | 485 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1165 | LZW HJAFLAFY HJWKK UZSFYWK SDD | LZW HJAFLAFY HJWKK UZSFYWK SDD | THE PRINTING PRESS CHANGES ALL | caesar | caesar | substitution | {
"type": "shift",
"value": 18
} | beginner | en | 26 | 30 | cipher_museum | 2.0 | public | null | null |
cda-0015837 | 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 20 8 5 20 18 9 20 8 5 13 9 21 19 3 9 16 8 5 18 1 4 22 1 14 3 5 19 20 8 5 1 12 16 8 1 2 5 20 2 25 15 14 5 16 15 19 9 20 9 15 14 5 1 3 8 12 5 20 20 5 18 16 1 20 20 5 18 14 23 15 18 4 19 8 5 12 16 2 18 5 1 11 13 15 14 15 1 12 16 8 1 2 5 20 9... | 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 20 8 5 20 18 9 20 8 5 13 9 21 19 3 9 16 8 5 18 1 4 22 1 14 3 5 19 20 8 5 1 12 16 8 1 2 5 20 2 25 15 14 5 16 15 19 9 20 9 15 14 5 1 3 8 12 5 20 20 5 18 16 1 20 20 5 18 14 23 15 18 4 19 8 5 12 16 2 18 5 1 11 13 15 14 15 1 12 16 8 1 2 5 20 9... | THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 183 | 183 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
geez-monastic-v2-0245 | IJTJEAIOFWOYPFWCIOHOVWEAZRZIIHTOYMEIARTIMTTSIJOATMJOQZUTPOBTAZSBIJOATMJORFTZUIJTQYOFTLTFWAWAITQBTLEATBRWZPXSSESVTSPECJTFTFZCZIETSIPFWCIZSZHWAIJZAYOXSBZQTIJOBIOFTLTZHEIAATPFTIA | IJTJEAIOFWOYPFWCIOHOVWEAZRZIIHTOYMEIARTIMTTSIJOATMJOQZUTPOBTAZSBIJOATMJORFTZUIJTQYOFTLTFWAWAITQBTLEATBRWZPXSSESVTSPECJTFTFZCZIETSIPFWCIZSZHWAIJZAYOXSBZQTIJOBIOFTLTZHEIAATPFTIA | 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 | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0423 | DFAGDAFGDGDADGFGAGAAAGAXGADDGAAGDGAXGXAFAAGDGAGAFAGGDAFAGAFXGFGADGDDFADDGGDGGDDGDXDGGDDGAGGGAFAGGFDGGDAAGFDXGGAFGGAAGAGGGXXDDFGGGFFAGFFGXGFFGXADDD | DFAGDAFGDGDADGFGAGAAAGAXGADDGAAGDGAXGXAFAAGDGAGAFAGGDAFAGAFXGFGADGDDFADDGGDGGDDGDXDGGDDGAGGGAFAGGFDGGDAAGFDXGGAFGGAAGAGGGXXDDFGGGFFAGFFGXGFFGXADDD | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0331 | DDDADAFFFAXGXAFDAGXDXDXGAGDDDGDGADFGAFFAFFFFDFDADDGGDAAAFDAAXADFAXDXAXADFFGXGDADADGGFDADFDFAXGGAFFXADDFDADFFFAGGDFXFGXDAAAFAFFAAAXDGGAGDDAAADFAAGD | DDDADAFFFAXGXAFDAGXDXDXGAGDDDGDGADFGAFFAFFFFDFDADDGGDAAAFDAAXADFAXDXAXADFFGXGDADADGGFDADFDFAXGGAFFXADDFDADFFFAGGDFXFGXDAAAFAFFAAAXDGGAGDDAAADFAAGD | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
slidex-037 | XDZJFUNKVKBSQUJTLRXYYLQKKCDCZYSLRFDOBJWTGH | XDZJFUNKVKBSQUJTLRXYYLQKKCDCZYSLRFDOBJWTGH | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | slidex | slidex | transposition | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
wallis-cipher-v3-0096 | 90 49 60 55 63 81 91 156 90 31 53 42 76 91 90 59 52 56 10 37 61 60 54 86 91 90 14 87 63 38 91 90 22 81 26 56 91 90 55 23 54 91 90 87 52 60 33 56 24 91 90 81 34 91 90 54 85 89 53 40 42 25 43 91 90 87 82 79 81 34 10 87 39 56 91 90 28 85 91 90 45 89 63 52 21 91 90 13 81 53 91 90 55 45 42 91 90 84 46 91 90 63 54 26 56 87 6... | 90 49 60 55 63 81 91 156 90 31 53 42 76 91 90 59 52 56 10 37 61 60 54 86 91 90 14 87 63 38 91 90 22 81 26 56 91 90 55 23 54 91 90 87 52 60 33 56 24 91 90 81 34 91 90 54 85 89 53 40 42 25 43 91 90 87 82 79 81 34 10 87 39 56 91 90 28 85 91 90 45 89 63 52 21 91 90 13 81 53 91 90 55 45 42 91 90 84 46 91 90 63 54 26 56 87 6... | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 433 | 648 | cipher_museum | 2.0 | public | null | null |
cda-0014845 | 6361 2526 1664 05715 0339 2844 03840 1902 1595 04396 01028 1604 1037 2864 05031 02551 01587 05714 07257 5676 2891 6285 1591 6020 06314 01608 7625 06285 02891 04460 00383 8182 02910 02239 08210 0378 2269 5061 0341 06281 6331 01581 5726 04465 00339 3777 07267 00390 7938 6009 | 6361 2526 1664 05715 0339 2844 03840 1902 1595 04396 01028 1604 1037 2864 05031 02551 01587 05714 07257 5676 2891 6285 1591 6020 06314 01608 7625 06285 02891 04460 00383 8182 02910 02239 08210 0378 2269 5061 0341 06281 6331 01581 5726 04465 00339 3777 07267 00390 7938 6009 | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN ALWAYS | zimmermann | zimmermann | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
hill-v3-0382 | CQLNDTARMIZEQRBLSNGFUOUGNVMRDMYLKCPLXZANFFWHJXVXQRDMMRDMSWIHDMEBZVZPDMUOYX | CQLNDTARMIZEQRBLSNGFUOUGNVMRDMYLKCPLXZANFFWHJXVXQRDMMRDMSWIHDMEBZVZPDMUOYX | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0654 | GAGFFFDDFAGADAFAXAAAAGFAFAAXAGXDAADXAXGDXXGXDDDGFXFXDGADFDAXFGDAAAXDXFXGFGFDDXXXFFGXGFFXADAGDAAXFFAXAAFDDGAGDDFDGXXDDAAGGXXAGXAFGFAAGAXAAFDXADAGDFGAXGGG | GAGFFFDDFAGADAFAXAAAAGFAFAAXAGXDAADXAXGDXXGXDDDGFXFXDGADFDAXFGDAAAXDXFXGFGFDDXXXFFGXGFFXADAGDAAXFFAXAAFDDGAGDDFDGXXDDAAGGXXAGXAFGFAAGAXAAFDXADAGDFGAXGGG | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
caesar-036 | DOO WKH ZRUOGV D VWDJH DQG DOO WKH PHQ DQG ZRPHQ PHUHOB SODBHUV | DOO WKH ZRUOGV D VWDJH DQG DOO WKH PHQ DQG ZRPHQ PHUHOB SODBHUV | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | en | 51 | 63 | cipher_museum | 0.2 | public | null | null |
cda-0014758 | ⟨w08⟩ ⟨w22⟩ ⟨w14⟩ ⟨w40⟩ ⟨a25⟩ ⟨w08⟩ ⟨a01⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a11⟩ ⟨w40⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w22⟩ ⟨a11⟩ ⟨a19⟩ ⟨w28⟩ ⟨a25⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w... | ⟨w08⟩ ⟨w22⟩ ⟨w14⟩ ⟨w40⟩ ⟨a25⟩ ⟨w08⟩ ⟨a01⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a11⟩ ⟨w40⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w22⟩ ⟨a11⟩ ⟨a19⟩ ⟨w28⟩ ⟨a25⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | babington | babington | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
geez-monastic-v3-0195 | GTFOUSOMHTBVTCFOOYAZHHOMOSTCZFIWIOCFOLTUSOMHTBVTMEIJOXIFTLTZHESVIJTUSOMHTBVTEIATHY | GTFOUSOMHTBVTCFOOYAZHHOMOSTCZFIWIOCFOLTUSOMHTBVTMEIJOXIFTLTZHESVIJTUSOMHTBVTEIATHY | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0030 | DMGJLTKVYMXJLVFEOLCKKWHXOFDJP | DMGJLTKVYMXJLVFEOLCKKWHXOFDJP | TAXATION WITHOUT REPRESENTATION | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
m94-v3-0023 | SORQVGOYZECOL | SORQVGOYZECOL | FULL SAIL AHEAD | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-003 | MWYVPJMPPORQGBHEC | MWYVPJMPPORQGBHEC | THE EAGLE HAS LANDED | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
affine-v2-0529 | DTIYD RID NGTALC | DTIYD RID NGTALC | TRUST BUT VERIFY | affine | affine | substitution | {
"a": 5,
"b": 12
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0004 | UPCOOKNFLHXGLWHRBISK | UPCOOKNFLHXGLWHRBISK | THE LEGIONS STAND READY | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0004392 | EHIOXPHRLSUOROEUIBSICDLEIXSSEEOITAQTSPMTPLHTSFPXSFTPIEPEBICYHHAPLSCBIABOXAENCRAINXRBWASLAHYUEIHPTITNTILUM | EHIOXPHRLSUOROEUIBSICDLEIXSSEEOITAQTSPMTPLHTSFPXSFTPIEPEBICYHHAPLSCBIABOXAENCRAINXRBWASLAHYUEIHPTITNTILUM | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "PATTERN"
} | hard | en | 105 | 105 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
playfair-v2-0400 | AFCXWTIBYANGKREDGYNONYNDBDLORCLYMDPQQBAFDPAFIKLQFTRLYBUNISFKBCXIPTIPXI | AFCXWTIBYANGKREDGYNONYNDBDLORCLYMDPQQBAFDPAFIKLQFTRLYBUNISFKBCXIPTIPXI | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0021812 | .-. --- ..- - . / -.-. .. .--. .... . .-. ... / .-. . .- -.. / .- / --. .-. .. -.. / .. -. / .- / .--. .-. . ... -.-. .-. .. -... . -.. / --. . --- -- . - .-. .. -.-. / .--. .- - - . .-. -. / .--. --- .-.. -.-- .- .-.. .--. .... .- -... . - .. -.-. / -.-. .. .--. .... . .-. ... / ..- ... . / -- ..- .-.. - .. .--. .-.. ... | .-. --- ..- - . / -.-. .. .--. .... . .-. ... / .-. . .- -.. / .- / --. .-. .. -.. / .. -. / .- / .--. .-. . ... -.-. .-. .. -... . -.. / --. . --- -- . - .-. .. -.-. / .--. .- - - . .-. -. / .--. --- .-.. -.-- .- .-.. .--. .... .- -... . - .. -.-. / -.-. .. .--. .... . .-. ... / ..- ... . / -- ..- .-.. - .. .--. .-.. ... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | morse_code | morse_code | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
chaocipher-v2-0559 | SGJBJQZZOHBGAUSZTWCXBGGEMJINEFTZGVFRXMJMGFHYLKTHHQFAKXFKJAAAJSZMQUGRLMWABZK | SGJBJQZZOHBGAUSZTWCXBGGEMJINEFTZGVFRXMJMGFHYLKTHHQFAKXFKJAAAJSZMQUGRLMWABZK | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0021269 | 15 2 19 5 18 22 1 2 12 5 5 22 9 4 5 14 3 5 3 15 13 5 19 2 5 6 15 18 5 3 15 14 6 9 4 5 14 3 5 | 15 2 19 5 18 22 1 2 12 5 5 22 9 4 5 14 3 5 3 15 13 5 19 2 5 6 15 18 5 3 15 14 6 9 4 5 14 3 5 | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 39 | 39 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0014264 | draft opens under batch light enemy track radio array north scout parts order scout incur takes incur often night array point place leads inner enemy | draft opens under batch light enemy track radio array north scout parts order scout incur takes incur often night array point place leads inner enemy | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | 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. |
diana-v3-0577 | QGKGDURBBUTVZDFWEGFJXFPBFVJWFDEOBISJHIGUGTFRMPGCTYCZFECCCOOGELEQMEGIPAN | QGKGDURBBUTVZDFWEGFJXFPBFVJWFDEOBISJHIGUGTFRMPGCTYCZFECCCOOGELEQMEGIPAN | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0244 | XXRVDBRCBMALIVFSLW | XXRVDBRCBMALIVFSLW | GRAVITY EXPLAINS ALL | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0119 | THEALCHEMISTSUCCEEDS | THEALCHEMISTSUCCEEDS | THE ALCHEMIST SUCCEEDS | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0579 | TNREHACOTEAEVEPEHSRDAPDTTEATUBNEYGLFSYORAILITAYNDMARHRRFOEHSGTELTNSTIILAKTLLN | TNREHACOTEAEVEPEHSRDAPDTTEATUBNEYGLFSYORAILITAYNDMARHRRFOEHSGTELTNSTIILAKTLLN | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-006 | 1024 1255 0918 0156 0285 0285 0219 0012 1346 1024 0729 0012 0856 0856 0285 0219 | 1024 1255 0918 0156 0285 0285 0219 0012 1346 1024 0729 0012 0856 0856 0285 0219 | PROCEED AS PLANNED | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 64 | 79 | cipher_museum | 0.2 | public | null | null |
m94-v3-0199 | ICGLBXQQCUBEYRGHMYUM | ICGLBXQQCUBEYRGHMYUM | THE KING DEMANDS FEALTY | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
pigpen-v2-0039 | ╳ ┤• ┐• ┌• ┼ ├ ┤• ⌐ ╳• ⌐ ▽ ⌐ ¬• ¬• ┬ ⌐ ┼• ├ ╲ ┴ ┐• ⌐ ¬ ┼ | ╳ ┤• ┐• ┌• ┼ ├ ┤• ⌐ ╳• ⌐ ▽ ⌐ ¬• ¬• ┬ ⌐ ┼• ├ ╲ ┴ ┐• ⌐ ¬ ┼ | TORPEDO AWAY ALL HANDS BRACE | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 33 | 56 | cipher_museum | 2.0 | public | null | null |
book-cipher-v2-0013 | 7.1 13.1 42.1 95.1 53.1 2.1 9.1 95.1 35.1 95.1 10.1 95.1 58.1 | 7.1 13.1 42.1 95.1 53.1 2.1 9.1 95.1 35.1 95.1 10.1 95.1 58.1 | E PLURIBUS UNUM | book_cipher | book_cipher | codebook | {
"type": "none",
"value": null
} | expert | en | 49 | 61 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0036 | KTDOASXIOVBEDHTSVSDOHTL | KTDOASXIOVBEDHTSVSDOHTL | GRAVITY EXPLAINS ALL | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0047 | 1672 0285 0012 1255 0285 1346 1503 0156 0472 1346 1421 1503 0347 0347 0012 1346 0219 1255 0285 0012 0792 1346 0012 1255 0285 0792 0012 0219 0285 0918 0856 0012 0856 0219 0918 1503 1255 0729 0538 1421 1421 0729 0285 0729 0538 0347 0285 0538 1346 1255 0918 1503 0856 0219 0285 0219 1672 0538 1421 0472 0012 1346 0729 0285 ... | 1672 0285 0012 1255 0285 1346 1503 0156 0472 1346 1421 1503 0347 0347 0012 1346 0219 1255 0285 0012 0792 1346 0012 1255 0285 0792 0012 0219 0285 0918 0856 0012 0856 0219 0918 1503 1255 0729 0538 1421 1421 0729 0285 0729 0538 0347 0285 0538 1346 1255 0918 1503 0856 0219 0285 0219 1672 0538 1421 0472 0012 1346 0729 0285 ... | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 264 | 329 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0035 | NBAFVYSXRHVL | NBAFVYSXRHVL | IN GOD WE TRUST | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0023 | UUWLUENFLSWAL | UUWLUENFLSWAL | FULL SAIL AHEAD | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
culper-ring-055 | 998 804 821 804 817 824 999 217 998 807 800 818 999 105 998 810 804 804 815 804 817 999 102 998 804 821 804 817 824 999 998 802 814 803 804 999 998 807 800 818 999 105 998 801 817 804 800 810 804 817 999 137 998 818 804 804 810 818 999 100 998 819 817 820 819 807 999 | 998 804 821 804 817 824 999 217 998 807 800 818 999 105 998 810 804 804 815 804 817 999 102 998 804 821 804 817 824 999 998 802 814 803 804 999 998 807 800 818 999 105 998 801 817 804 800 810 804 817 999 137 998 818 804 804 810 818 999 100 998 819 817 820 819 807 999 | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 201 | 267 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0431 | DNNPQPDQYNJXQCTJYXLIDMSEVVGVHJOVKBYJIQHXOPHFRQXWKHIPNBPJQONYVNNCGGQWMLAHJOI | DNNPQPDQYNJXQCTJYXLIDMSEVVGVHJOVKBYJIQHXOPHFRQXWKHIPNBPJQONYVNNCGGQWMLAHJOI | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
typex-128 | MECKUETGYKPY | MECKUETGYKPY | HOLD POSITION | typex | typex | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
m209-v3-0385 | BSZIJABFMALWZRBBUYRLLUXGLVDRSVQXAKWMNWYZFOKVDQYKWAOYEAZSCVAMLLXESRDYEDURXALPRN | BSZIJABFMALWZRBBUYRLLUXGLVDRSVQXAKWMNWYZFOKVDQYKWAOYEAZSCVAMLLXESRDYEDURXALPRN | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
hill-v2-0394 | UGPLVXQTWTFJMR | UGPLVXQTWTFJMR | COVER MY RETREAT | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0213 | ALBPGBITYZCLASCY | ALBPGBITYZCLASCY | SOUND THE TRUMPETS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
adfgx-181 | AAFAAAXFDDDGDFAAXGAAADDAGAXGGD | AAFAAAXFDDDGDFAAXGAAADDAGAXGGD | ENEMY FORCES NEAR | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v3-0275 | SWUZVYSMFWBMCVHYAUFMZUQHIUHQMVCAYWWYAJUJZWAVHXPMFMPJOVCXQMWUFUWKJYDXMWHUL | SWUZVYSMFWBMCVHYAUFMZUQHIUHQMVCAYWWYAJUJZWAVHXPMFMPJOVCXQMWUFUWKJYDXMWHUL | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0113 | 99999 90006 90004 90013 90019 90011 90004 90012 90004 90013 99998 99999 90012 90000 90024 99998 99999 90002 90017 90024 99998 00099 00099 00019 00034 00006 00053 00099 00000 00098 00006 99999 90000 90002 90019 90020 90000 90011 90011 90024 99998 99999 90001 90004 90006 90020 90013 99998 00000 99999 90013 90004 90023 90... | 99999 90006 90004 90013 90019 90011 90004 90012 90004 90013 99998 99999 90012 90000 90024 99998 99999 90002 90017 90024 99998 00099 00099 00019 00034 00006 00053 00099 00000 00098 00006 99999 90000 90002 90019 90020 90000 90011 90011 90024 99998 99999 90001 90004 90006 90020 90013 99998 00000 99999 90013 90004 90023 90... | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 785 | 941 | cipher_museum | 2.0 | public | null | null |
cda-0021807 | . ... .... .. ..... .... ... ..... .... .... ... .... .. .. .... .. . . ... ..... .. ... ..... .... .... .. . ..... ..... .. . . .... .. . .... .... ... ... ..... . . .... .... .. .... . ..... ... ... . ... . ..... . . ... ... . .... . ... . . .... .. . ..... .. . .... ..... ... . .... | . ... .... .. ..... .... ... ..... .... .... ... .... .. .. .... .. . . ... ..... .. ... ..... .... .... .. . ..... ..... .. . . .... .. . .... .... ... ... ..... . . .... .... .. .... . ..... ... ... . ... . ..... . . ... ... . .... . ... . . .... .. . ..... .. . .... ..... ... . .... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | tap_code | tap_code | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
beaufort-v3-0499 | CBYCGLRCUXAHNJRUNIKYKLEYEOEVUECCOAMDQVTDGLHPBPGETEAPNKOXXPVPJNVRRCIIDDRRPHKEF | CBYCGLRCUXAHNJRUNIKYKLEYEOEVUECCOAMDQVTDGLHPBPGETEAPNKOXXPVPJNVRRCIIDDRRPHKEF | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0016479 | K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L | K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L | THE INDEX OF COINCIDENCE IS A USEFUL CLUE A STRONG CLAIM NEEDS STRONG EVIDENCE | pigpen | pigpen | null | {} | medium | en | 30 | 30 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
beaufort-v2-0808 | UJPDXRPHLHBYTNKOOHWAHZMHIMIQIYTJWQKRHWUMKASVPTSDLJPCXDOFJPWDGWADVDHGYPKR | UJPDXRPHLHBYTNKOOHWAHZMHIMIQIYTJWQKRHWUMKASVPTSDLJPCXDOFJPWDGWADVDHGYPKR | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ANCHOR"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0004033 | PYNFFVPNY PVCUREF GRNPU JUL ZBQREA FRPHEVGL ZNGGREF GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF SEVRQZNA RFGVZNGRQ XRL YRATGU SEBZ FGNGVFGVPF CREUNCF | PYNFFVPNY PVCUREF GRNPU JUL ZBQREA FRPHEVGL ZNGGREF GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF SEVRQZNA RFGVZNGRQ XRL YRATGU SEBZ FGNGVFGVPF CREUNCF | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE INDEX OF COINCIDENCE IS A USEFUL CLUE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS PERHAPS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
straddling-checkerboard-v2-0108 | 748425292028891457420622353174842592520684762356202828748425238629310083425168242542002452224873107204501142516824254281472004687315345238380254251745627741206183452183227270425132048530745723220 | 748425292028891457420622353174842592520684762356202828748425238629310083425168242542002452224873107204501142516824254281472004687315345238380254251745627741206183452183227270425132048530745723220 | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 195 | 195 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0131 | 09908 09996 09993 09991 09903 09901 09904 09999 09907 09907 09904 09903 09997 09902 09908 09907 09908 09906 09919 09993 | 09908 09996 09993 09991 09903 09901 09904 09999 09907 09907 09904 09903 09997 09902 09908 09907 09908 09906 09919 09993 | THE COMPASS POINTS TRUE | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 100 | 119 | cipher_museum | 2.0 | public | null | null |
copiale-149 | F5 K6 J4 R6 B7 K1 P0 A3 D5 L0 I0 G6 B0 Q2 C3 T2 | F5 K6 J4 R6 B7 K1 P0 A3 D5 L0 I0 G6 B0 Q2 C3 T2 | LOCK DOWN ALL GATES | copiale | copiale | substitution | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 32 | 47 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0744 | RPKHQIMNFNDIIMDNLXNWDWNHFTETRQZCXILIPREHQIEBBFKN | RPKHQIMNFNDIIMDNLXNWDWNHFTETRQZCXILIPREHQIEBBFKN | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
cda-0009149 | TUEROTSSHRBMRHEEIRKEMAKSUSSARHUTOELLYNESOCHUEFLSXXPYOHLITDARWAXXCHCRMECADEEEXXINWEKT | TUEROTSSHRBMRHEEIRKEMAKSUSSARHUTOELLYNESOCHUEFLSXXPYOHLITDARWAXXCHCRMECADEEEXXINWEKT | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | stager_route | stager_route | null | {
"cols": 12
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
rail-fence-de-061 | HUEETCLNMREDEETETDUSHADOGNIWL | HUEETCLNMREDEETETDUSHADOGNIWL | HEUTE DEUTSCHLAND MORGEN DIE WELT | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | de | 29 | 29 | cipher_museum | 0.2 | public | null | null |
four-square-v3-0296 | DVRLRMNNBOGMNNHLALAV | DVRLRMNNBOGMNNHLALAV | AVE MARIA GRATIA PLENA | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
caesar-vh-0040 | MAX EHKW RHNK ZHW PBEE UX PBMA RHN PAXKXOXK RHN ZH LH WH GHM YXTK HK UX WBLFTRXW FR VABEW | MAX EHKW RHNK ZHW PBEE UX PBMA RHN PAXKXOXK RHN ZH LH WH GHM YXTK HK UX WBLFTRXW FR VABEW | THE LORD YOUR GOD WILL BE WITH YOU WHEREVER YOU GO SO DO NOT FEAR OR BE DISMAYED MY CHILD | caesar | caesar | substitution | {
"type": "shift",
"value": 19
} | beginner | en | 70 | 89 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0269 | JJGIXDPJRYSBJZEMKBXUVFSSTKXHWHSLIHZMPXQZAAQJBMAWDKQTZHUMBVRBKTSVZRMKQKN | JJGIXDPJRYSBJZEMKBXUVFSSTKXHWHSLIHZMPXQZAAQJBMAWDKQTZHUMBVRBKTSVZRMKQKN | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0215 | OCTTHVORRICMYA | OCTTHVORRICMYA | MARCH TO VICTORY | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0904 | SDR HKUR KB IKJRY EQ SDR PKKS KB VHH RUEH ATS ES EQ SDR HKUR KB CKKO SDVS IKURQ SDR WKPHO | SDR HKUR KB IKJRY EQ SDR PKKS KB VHH RUEH ATS ES EQ SDR HKUR KB CKKO SDVS IKURQ SDR WKPHO | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VALOR"
} | beginner | en | 69 | 89 | cipher_museum | 2.0 | public | null | null |
cda-0011726 | AMGSNETEVREIODDNSEGSNCTCLREAOXINX | AMGSNETEVREIODDNSEGSNCTCLREAOXINX | A STRONG CLAIM NEEDS STRONG EVIDENCE | scytale | scytale | null | {
"cols": 11
} | medium | en | 33 | 33 | synthetic_educational | null | null | [] | |
affine-v3-1296 | QEFF YC AIHYECF IKYC SCEPI EOK RCNCP YARJ HKG FKRO DPCQAICFS A BHKUOHB A GKUFJ IEAF EXKUB ERJ ICC BHC KQCER | QEFF YC AIHYECF IKYC SCEPI EOK RCNCP YARJ HKG FKRO DPCQAICFS A BHKUOHB A GKUFJ IEAF EXKUB ERJ ICC BHC KQCER | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 87 | 107 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0728 | DFDHXQMIALVENHETZY | DFDHXQMIALVENHETZY | KEEP YOUR POWDER DRY | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
caesar-148 | RINPHNGR GUR ONFR | RINPHNGR GUR ONFR | EVACUATE THE BASE | caesar | caesar | substitution | {
"type": "shift",
"value": 13
} | beginner | en | 15 | 17 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v2-0426 | KTJOVZACKSYKVGQQSADLIVZQRINBMVWOMKFLRROUXRYITULRZYOIPCOFBAIGYQMQIYIT | KTJOVZACKSYKVGQQSADLIVZQRINBMVWOMKFLRROUXRYITULRZYOIPCOFBAIGYQMQIYIT | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0002209 | ANQG IQIH VLVL EFWU OGSM NZNK QAUU KWGF THTB YMQJ FDDX UHFP IKYQ TSCQ WUUZ QCSZ ZESP TJUH FPIK QHNL GBSW JLZM YYAG QDDW MLYJ XCSR CBVL SSCP BQOY OEME JZGG UONX LRPB THRY ZVWU CSAH ZSIY GPCO OOCZ SPPL RL | ANQG IQIH VLVL EFWU OGSM NZNK QAUU KWGF THTB YMQJ FDDX UHFP IKYQ TSCQ WUUZ QCSZ ZESP TJUH FPIK QHNL GBSW JLZM YYAG QDDW MLYJ XCSR CBVL SSCP BQOY OEME JZGG UONX LRPB THRY ZVWU CSAH ZSIY GPCO OOCZ SPPL RL | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | trithemius | trithemius | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
two-square-v2-0380 | SESKENCEBRLHOQXFNURCYX | SESKENCEBRLHOQXFNURCYX | PATIENCE BRINGS VICTORY | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0019869 | HCVD BAIU ONVR KQDY QRHN KXSD XRMH QSBV TTVI RZEZ DFZR JAWN YPWT YAWQ WGTR GUBU MDKX TBUG WZMA XTYZ JKKW YHRX WGZB | HCVD BAIU ONVR KQDY QRHN KXSD XRMH QSBV TTVI RZEZ DFZR JAWN YPWT YAWQ WGTR GUBU MDKX TBUG WZMA XTYZ JKKW YHRX WGZB | THE BEST LESSONS SHOW WHERE THE METHOD FAILS TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | vernam | vernam | null | {} | hard | en | 92 | 92 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0016710 | AAAAA BAAAB AAABA BABBA BAABA AAAAA ABABA AABAA ABAAA BAAAB AAAAA BAAAA ABBAB AAABB BAABB BAAAB AABAA AAABB AAAAB BABBA BAAAB ABBBA AAAAA BAAAA BAABA AAAAA ABBAA BAAAB BAABA ABBAB AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA ABABB AABAA BAAAB BAAAB AAAAA AABBA AABAA BAAAB BAABA AABBB AABAA BAABB ABAAA AABBA AABAA ABBAA AA... | AAAAA BAAAB AAABA BABBA BAABA AAAAA ABABA AABAA ABAAA BAAAB AAAAA BAAAA ABBAB AAABB BAABB BAAAB AABAA AAABB AAAAB BABBA BAAAB ABBBA AAAAA BAAAA BAABA AAAAA ABBAA BAAAB BAABA ABBAB AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA ABABB AABAA BAAAB BAAAB AAAAA AABBA AABAA BAAAB BAABA AABBB AABAA BAABB ABAAA AABBA AABAA ABBAA AA... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE VIGENERE CIPHER USES A REPEATING KEYWORD TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | bacon_cipher | bacon_cipher | null | {} | hard | en | 690 | 690 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
affine-vf-0062 | UWWK ERL IW UDEVV HORL KRCAK ERL OF UDEVV PW CNWRWL QRFC ICQ ERL EVV UDEVV JWAWOBW | UWWK ERL IW UDEVV HORL KRCAK ERL OF UDEVV PW CNWRWL QRFC ICQ ERL EVV UDEVV JWAWOBW | SEEK AND YE SHALL FIND KNOCK AND IT SHALL BE OPENED UNTO YOU AND ALL SHALL RECEIVE | affine | affine | substitution | {
"a": 11,
"b": 4
} | beginner | en | 66 | 82 | cipher_museum | 2.0 | public | null | null |
caesar-la-039 | TKL EHGZT OBMT UKXOBL | TKL EHGZT OBMT UKXOBL | ARS LONGA VITA BREVIS | caesar | caesar | substitution | {
"type": "shift",
"value": 19
} | beginner | la | 18 | 21 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0054 | YVDA CJ QGL BCQCDYO OVCZZLZ QGL VYBBYGYXXCOW QCXUHGQ YPZCEIQL ZUELXOL UZ UDBLVYQURL XCK | YVDA CJ QGL BCQCDYO OVCZZLZ QGL VYBBYGYXXCOW QCXUHGQ YPZCEIQL ZUELXOL UZ UDBLVYQURL XCK | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 75 | 87 | cipher_museum | 2.0 | public | null | null |
m209-v3-0033 | GEORXCYQNZTA | GEORXCYQNZTA | YANKEE DOODLE | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0294 | XOLVJDBXHUYWOLPESMZOYGCDVXIAXVJBLVBFLHPZQMZBFHMEFZECSEKBTYMFYNXLHJWGCWFUSXYSXYI | XOLVJDBXHUYWOLPESMZOYGCDVXIAXVJBLVBFLHPZQMZBFHMEFZECSEKBTYMFYNXLHJWGCWFUSXYSXYI | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
m94-v2-0210 | TKTFIAFBXDZAEEPTOUODRBODDTKAWQUDFAFPKEVNWWRVMQHOWHBJTLPYWNPDTCYBJFOLOPGRODUKEAYQYTYAAQ | TKTFIAFBXDZAEEPTOUODRBODDTKAWQUDFAFPKEVNWWRVMQHOWHBJTLPYWNPDTCYBJFOLOPGRODUKEAYQYTYAAQ | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
commercial-code-v2-0002 | ZUZUZ DAZUZ BAZUZ WAZUZ ZAZUZ KAZUZ BAZUZ JAZUZ GAZUZ XUZUZ ZUZUZ QAZUZ BEZUZ XAZUZ ZAZUZ XUZUZ PABAB ZUZUZ FAZUZ GAZUZ XAZUZ ZAZUZ WAZUZ SAZUZ GEZUZ GAZUZ FAZUZ XUZUZ | ZUZUZ DAZUZ BAZUZ WAZUZ ZAZUZ KAZUZ BAZUZ JAZUZ GAZUZ XUZUZ ZUZUZ QAZUZ BEZUZ XAZUZ ZAZUZ XUZUZ PABAB ZUZUZ FAZUZ GAZUZ XAZUZ ZAZUZ WAZUZ SAZUZ GEZUZ GAZUZ FAZUZ XUZUZ | CARTHAGE MUST BE DESTROYED | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 140 | 167 | cipher_museum | 2.0 | public | null | null |
cda-0014127 | TROO PHOU RSEI GHTF RONT ORDE RUND ERRA IDSS EEKS QUOT AUNI TSAF TERR OADS EARL YCLE ARIN TELP ARTS HOLD SEIG HTRA IDSU NITS SOUT HEXT RAST AGET URNS WATC H | TROO PHOU RSEI GHTF RONT ORDE RUND ERRA IDSS EEKS QUOT AUNI TSAF TERR OADS EARL YCLE ARIN TELP ARTS HOLD SEIG HTRA IDSU NITS SOUT HEXT RAST AGET URNS WATC H | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | 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. |
cda-0008748 | IYV LQZYDIVZICQV RYUCSW PLHV PDRCRV YLQWVQ ZLVRLQ RYDEIVW IYV LSFYLBVI BG IYQVV FURDIDUAR IYV WVIVZIDXV RICWDVR FLIIVQAR BVEUQV PLHDAM ZSLDPR LIBLRY VAZUWVR BG QVXVQRDAM IYV LSFYLBVI | IYV LQZYDIVZICQV RYUCSW PLHV PDRCRV YLQWVQ ZLVRLQ RYDEIVW IYV LSFYLBVI BG IYQVV FURDIDUAR IYV WVIVZIDXV RICWDVR FLIIVQAR BVEUQV PLHDAM ZSLDPR LIBLRY VAZUWVR BG QVXVQRDAM IYV LSFYLBVI | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS ATBASH ENCODES BY REVERSING THE ALPHABET | monoalphabetic | monoalphabetic | null | {
"alphabet": "LBZWVEMYDKHSPAUFOQRICXTNGJ"
} | hard | en | 157 | 157 | synthetic_educational | null | null | [] | |
cda-0009415 | NGEN AFCN ERAG GBBY FUBH YQFU BJVG FERN FBAV ATGU RQRG RPGV IRFG HQVR FCNG GREA FORS BERZ NXVA TPYN VZFB CRAF BHEP RGBB YFNY YBJV AQRC RAQR AGIR EVSV PNGV BAFR PHEV GLPY NVZF FUBH YQOR GRFG RQHA QREF PEHG VAL | NGEN AFCN ERAG GBBY FUBH YQFU BJVG FERN FBAV ATGU RQRG RPGV IRFG HQVR FCNG GREA FORS BERZ NXVA TPYN VZFB CRAF BHEP RGBB YFNY YBJV AQRC RAQR AGIR EVSV PNGV BAFR PHEV GLPY NVZF FUBH YQOR GRFG RQHA QREF PEHG VAL | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 167 | 167 | synthetic_educational | null | null | [] | |
columnar-transposition-v3-0325 | HEOASDSUEEIUCSNTRDTLR | HEOASDSUEEIUCSNTRDTLR | THE CASTLE IS SURROUNDED | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0487 | TORPFDOAWAYALLHANDSBRACE | TORPFDOAWAYALLHANDSBRACE | TORPEDO AWAY ALL HANDS BRACE | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0011243 | SWVL FRGU ERWZ TGPD AEGV SQYW OZRR TGZ | SWVL FRGU ERWZ TGPD AEGV SQYW OZRR TGZ | A STRONG CLAIM NEEDS STRONG EVIDENCE | autokey | autokey | null | {
"primer": "SECURE"
} | medium | en | 31 | 31 | synthetic_educational | null | null | [] | |
gronsfeld-v2-1118 | ZFWIGOMJJMKUSOZKFFFGFIITCHTLBROGMHNWPRUNHMEOJLOKHXRVREYZFWIGOMJJMKUMOZKFJJKOEWBTGJRUNHTXSKHUWXKVIEMRIJKIZLOXIKKJPMYZFWIGOMRFBHSWVXUFREKU | ZFWIGOMJJMKUSOZKFFFGFIITCHTLBROGMHNWPRUNHMEOJLOKHXRVREYZFWIGOMJJMKUMOZKFJJKOEWBTGJRUNHTXSKHUWXKVIEMRIJKIZLOXIKKJPMYZFWIGOMRFBHSWVXUFREKU | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31416"
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0073 | ALLUNITSPROCEEDTODESIGNAXEDRALLYOOINTWANDAWAITFURTHERKRDERSFROMHIGHCOMMANDNPW | ALLUNITSPROCEEDTODESIGNAXEDRALLYOOINTWANDAWAITFURTHERKRDERSFROMHIGHCOMMANDNPW | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
diana-049 | KUZJMMVMUHPHWUTDPSVHWEKTWLPSZNHBWUTZRHFIQUZCWMANUTZWSAX | KUZJMMVMUHPHWUTDPSVHWEKTWLPSZNHBWUTZRHFIQUZCWMANUTZWSAX | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "DIANA"
} | intermediate | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-044 | HGYGREESKNTAJDWKBQVHQYAYJOSXDXDMQJDNTLOXZJHONCTQNVYDPWLDL | HGYGREESKNTAJDWKBQVHQYAYJOSXDXDMQJDNTLOXZJHONCTQNVYDPWLDL | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
commercial-code-013 | ZUZUZ GAZUZ RAZUZ GAZUZ QAZUZ GEZUZ XUZUZ ZUZUZ HAZUZ SAZUZ WAZUZ DAZUZ GAZUZ XAZUZ XUZUZ ZUZUZ RAZUZ GAZUZ BAZUZ WAZUZ XUZUZ | ZUZUZ GAZUZ RAZUZ GAZUZ QAZUZ GEZUZ XUZUZ ZUZUZ HAZUZ SAZUZ WAZUZ DAZUZ GAZUZ XAZUZ XUZUZ ZUZUZ RAZUZ GAZUZ BAZUZ WAZUZ XUZUZ | ENEMY FORCES NEAR | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 105 | 125 | cipher_museum | 0.2 | public | null | null |
cda-0002347 | WGNFLUMLBWBMF XBUISGL GSNGGNFDS RSWWSGL JBWIMCW LCQLWBWCWBMF WIS ZBDSFSGS XBUISG CLSL N GSUSNWBFD ESPJMGH XRNLLBXNR XBUISGL WSNXI JIP TMHSGF LSXCGBWP TNWWSGL USGINUL | WGNFLUMLBWBMF XBUISGL GSNGGNFDS RSWWSGL JBWIMCW LCQLWBWCWBMF WIS ZBDSFSGS XBUISG CLSL N GSUSNWBFD ESPJMGH XRNLLBXNR XBUISGL WSNXI JIP TMHSGF LSXCGBWP TNWWSGL USGINUL | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE VIGENERE CIPHER USES A REPEATING KEYWORD CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PERHAPS | monoalphabetic | monoalphabetic | null | {
"alphabet": "NQXHSODIBYERTFMUKGLWCZJVPA"
} | hard | en | 145 | 145 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
affine-531 | HYVXEZCTZ NJ SVXZM LYC NYWVMBLGNVY NJ GQZ HZR GV ANFGVMR NY LYR FVYWENFG | HYVXEZCTZ NJ SVXZM LYC NYWVMBLGNVY NJ GQZ HZR GV ANFGVMR NY LYR FVYWENFG | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | affine | affine | substitution | {
"a": 23,
"b": 11
} | beginner | en | 60 | 72 | cipher_museum | 0.2 | public | null | null |
cda-0017135 | BAAB AAAB BBAA BAAA BBBA ABAB AAAA AABA BBAA ABAB AAAA AABA AABA AAAA AABA ABAA AABB BAAA BBBA ABAA BAAA AAAB AAAB BAAA AABA BAAA ABAB BAAB BBAB AABA BAAA BABB BAAA AAAA BAAA BAAA ABAA ABAB BABA ABAB ABAB AAAB AABA ABAB AABA AABA ABAA AABA AABB AAAB ABAA AABA BBBA ABBA BABA BAAB AAAA AAAB BAAA ABAA ABBA BBAA BBBA AABA ... | BAAB AAAB BBAA BAAA BBBA ABAB AAAA AABA BBAA ABAB AAAA AABA AABA AAAA AABA ABAA AABB BAAA BBBA ABAA BAAA AAAB AAAB BAAA AABA BAAA ABAB BAAB BBAB AABA BAAA BABB BAAA AAAA BAAA BAAA ABAA ABAB BABA ABAB ABAB AAAB AABA ABAB AABA AABA ABAA AABA AABB AAAB ABAA AABA BBBA ABBA BABA BAAB AAAA AAAB BAAA ABAA ABBA BBAA BBBA AABA ... | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | bacon_cipher | bacon_cipher | null | {} | hard | en | 570 | 570 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
bifid-v3-0005 | SSGBTSPTOYGZRXES | SSGBTSPTOYGZRXES | SOUND THE TRUMPETS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
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