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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
columnar-transposition-145 | EGSEDCLLSNIIENO | EGSEDCLLSNIIENO | SILENCE IS GOLDEN | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
hill-v2-0497 | DMYLEQRVTFGTAVMJRVXRYGEQCFMRLGMULPGVIBWTYSKPDMGGCINPEGUMUGJPGWTCDMGGCINPROKCYJTROFEBADSJSYSYXXKVADEQQRFXEKYXDBZRKPICTKSJSJEXMRCYZEAVMJPDNNRPSNLXQVKQTCYIWTNPNMEBADKCLNZPOQAVWTAH | DMYLEQRVTFGTAVMJRVXRYGEQCFMRLGMULPGVIBWTYSKPDMGGCINPEGUMUGJPGWTCDMGGCINPROKCYJTROFEBADSJSYSYXXKVADEQQRFXEKYXDBZRKPICTKSJSJEXMRCYZEAVMJPDNNRPSNLXQVKQTCYIWTNPNMEBADKCLNZPOQAVWTAH | 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 | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 176 | 176 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0255 | TPBFYTHPVZE | TPBFYTHPVZE | HOLD THE LINE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0301 | AFDFADADAGDAFDDXGAFGDDDGGDFADFDFDGFFDDADFFAGGDFDFDXFDFDAGXADFDFADFDFXAAFDFDADADDADFFDGDAFGDFDDDADDAFXGFFXFADDFGFFDFFDADDFXGXGDFAFFGAGAADDGAFAFDGFGDDFD | AFDFADADAGDAFDDXGAFGDDDGGDFADFDFDGFFDDADFFAGGDFDFDXFDFDAGXADFDFADFDFXAAFDFDADADDADFFDGDAFGDFDDDADDAFXGFFXFADDFGFFDFFDADDFXGXGDFAFFGAGAADDGAFAFDGFGDDFD | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0133 | LARZOGXQJXCA | LARZOGXQJXCA | VENI VIDI VICI | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0019811 | 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 20 8 5 6 18 9 5 4 13 1 14 20 5 19 20 21 19 5 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 20 15 5 19 20 9 13 1 20 5 11 5 25 12 5 14 7 20 8 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 ... | 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 20 8 5 6 18 9 5 4 13 1 14 20 5 19 20 21 19 5 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 20 15 5 19 20 9 13 1 20 5 11 5 25 12 5 14 7 20 8 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 ... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS NEVER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 163 | 163 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0010749 | TLCE YORE LAYS DCWR SOUN TSIS DTLL EBIX MRYD SCIN SUUH ETEU | TLCE YORE LAYS DCWR SOUN TSIS DTLL EBIX MRYD SCIN SUUH ETEU | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY SLOWLY | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "PALACE"
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
stager-route-v2-0154 | CAROUKNRAESGESXINXXD | CAROUKNRAESGESXINXXD | COURAGE IN DARKNESS | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0015672 | going other other depth enemy delay upper clear alert turns incur often night along light three often other leads seeks extra xerox place light among | going other other depth enemy delay upper clear alert turns incur often night along light three often other leads seeks extra xerox place light among | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | 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. |
lorenz-v3-0037 | THETELESCOPEREVEALS | THETELESCOPEREVEALS | THE TELESCOPE REVEALS | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0019 | 108 169 141 113 178 165 147 167 172 166 151 125 168 102 122 172 | 108 169 141 113 178 165 147 167 172 166 151 125 168 102 122 172 | THE ALCHEMIST SUCCEEDS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 48 | 63 | cipher_museum | 2.0 | public | null | null |
cda-0015270 | 0726 1587 0347 6617 1930 4760 05717 06354 2903 6031 6318 2526 01631 05674 1628 0942 02901 05051 5700 04774 01025 00331 3839 04719 01967 07004 2857 2213 01625 4487 01645 5722 1669 00372 4439 01328 1273 01637 00943 5680 7879 5060 06327 6006 02851 06304 06007 1629 03844 01938 0398 04459 00393 1972 1916 2868 4423 1661 0102... | 0726 1587 0347 6617 1930 4760 05717 06354 2903 6031 6318 2526 01631 05674 1628 0942 02901 05051 5700 04774 01025 00331 3839 04719 01967 07004 2857 2213 01625 4487 01645 5722 1669 00372 4439 01328 1273 01637 00943 5680 7879 5060 06327 6006 02851 06304 06007 1629 03844 01938 0398 04459 00393 1972 1916 2868 4423 1661 0102... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | zimmermann | zimmermann | null | {} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0020525 | LKAII NDARA LOTAI INSHE OLCHE DYAII INSHA LDARA LCHED ALCTA IINKA IIIND ARALC HOLOX EDDAI INSHO ROTED YOTOL OXEDY PCHOL CHORO RORYT AIINS HAIIN SHORC HEDY | LKAII NDARA LOTAI INSHE OLCHE DYAII INSHA LDARA LCHED ALCTA IINKA IIIND ARALC HOLOX EDDAI INSHO ROTED YOTOL OXEDY PCHOL CHORO RORYT AIINS HAIIN SHORC HEDY | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | voynich_render | voynich_render | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
wheatstone-167 | VTKFVFRFVFCFFCSJTFPSWFCLKNUTOTRSIIFKSPFKBITESQQIT | VTKFVFRFVFCFFCSJTFPSWFCLKNUTOTRSIIFKSPFKBITESQQIT | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
cda-0019934 | THELX BRARY PRESE RVESZ NOWLE DGEFO RTHEC OMMUN ITYBX UTEFO RCEWO RKSOX LYWHX NTHEK EYSPA CEISS MALLX | THELX BRARY PRESE RVESZ NOWLE DGEFO RTHEC OMMUN ITYBX UTEFO RCEWO RKSOX LYWHX NTHEK EYSPA CEISS MALLX | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | commercial_code | commercial_code | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
stager-route-280 | WFTHEEREVSEHIESGESHENDRAABHHATENLSERULDAOLLNCWNRX | WFTHEEREVSEHIESGESHENDRAABHHATENLSERULDAOLLNCWNRX | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | stager_route | stager_route | transposition | {
"type": "integer",
"value": 7
} | expert | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
purple-v2-0208 | YFBMSKKWMYNEFTWOUZZYXDNCNRWMATGHMINHGFAOIAXGXVQLSEYUXOKNFIFIZQLKEBNBUAKFBQUMSBEHN | YFBMSKKWMYNEFTWOUZZYXDNCNRWMATGHMINHGFAOIAXGXVQLSEYUXOKNFIFIZQLKEBNBUAKFBQUMSBEHN | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0166 | SBFKAZLTRYVZOVXNZDOQILJW | SBFKAZLTRYVZOVXNZDOQILJW | NORTH STAR HOLDS FIRM COURSE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0105 | TEAMRLNIAELSSPMHAK | TEAMRLNIAELSSPMHAK | THE ORACLE HAS SPOKEN | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0084 | 0667 0856 0918 1672 0729 0285 0219 0408 0285 1672 0538 1421 0472 0918 1503 1421 1672 0538 1346 0219 0918 0792 0538 1346 0012 0219 0012 0856 0408 0285 1255 0918 1503 1346 1421 0472 0538 0856 0408 0012 0856 0219 1672 0538 1346 0219 0918 0792 1672 0538 1421 0472 0918 1503 1421 0156 0918 1503 1255 0012 0408 0285 0538 1346 ... | 0667 0856 0918 1672 0729 0285 0219 0408 0285 1672 0538 1421 0472 0918 1503 1421 1672 0538 1346 0219 0918 0792 0538 1346 0012 0219 0012 0856 0408 0285 1255 0918 1503 1346 1421 0472 0538 0856 0408 0012 0856 0219 1672 0538 1346 0219 0918 0792 1672 0538 1421 0472 0918 1503 1421 0156 0918 1503 1255 0012 0408 0285 0538 1346 ... | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 332 | 414 | cipher_museum | 2.0 | public | null | null |
cda-0018857 | 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 13 15 4 5 18 14 5 14 3 18 25 16 20 9 15 14 9 19 14 15 20 2 18 15 11 5 14 2 25 12 5 20 20 5 18 6 18 5 17 21 5 14 3 25 | 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 13 15 4 5 18 14 5 14 3 18 25 16 20 9 15 14 9 19 14 15 20 2 18 15 11 5 14 2 25 12 5 20 20 5 18 6 18 5 17 21 5 14 3 25 | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
great-cipher-v2-0340 | 133 141 158 164 126 142 128 154 154 120 149 116 121 168 121 118 101 100 101 140 120 119 140 175 125 146 149 158 118 158 106 125 140 168 142 149 130 131 140 133 175 179 133 103 133 111 170 122 154 138 164 179 118 117 152 103 119 133 175 141 111 120 108 151 | 133 141 158 164 126 142 128 154 154 120 149 116 121 168 121 118 101 100 101 140 120 119 140 175 125 146 149 158 118 158 106 125 140 168 142 149 130 131 140 133 175 179 133 103 133 111 170 122 154 138 164 179 118 117 152 103 119 133 175 141 111 120 108 151 | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 192 | 255 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0416 | ZNK BKTUTG VXUPKIZ CNOIN XGT LXUS TOTKZKKT LUXZE ZNXKK ZU TOTKZKKT KOMNZE JKIXEVZKJ ZNUAYGTJY UL YUBOKZ OTZKRROMKTIK SKYYGMKY XKBKGROTM ZNK OJKTZOZOKY UL TASKXUAY GMKTZY CNU NGJ VKTKZXGZKJ ZNK AY MUBKXTSKTZ | ZNK BKTUTG VXUPKIZ CNOIN XGT LXUS TOTKZKKT LUXZE ZNXKK ZU TOTKZKKT KOMNZE JKIXEVZKJ ZNUAYGTJY UL YUBOKZ OTZKRROMKTIK SKYYGMKY XKBKGROTM ZNK OJKTZOZOKY UL TASKXUAY GMKTZY CNU NGJ VKTKZXGZKJ ZNK AY MUBKXTSKTZ | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 177 | 206 | cipher_museum | 2.0 | public | null | null |
typex-v3-0079 | GMHJYNVSDMSKPOMXPYWNJDCOJLSVHBAEMFEACGAMWHSHBNKVELNJQWPOCTBESYTVRILGKSBMISKOEGJITXPT | GMHJYNVSDMSKPOMXPYWNJDCOJLSVHBAEMFEACGAMWHSHBNKVELNJQWPOCTBESYTVRILGKSBMISKOEGJITXPT | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0016115 | ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. | ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ... .-.. --- --. .- -. | FAIL CLOSED IS A POSTURE NOT A SLOGAN | morse_code | morse_code | null | {} | medium | en | 30 | 30 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0004329 | QVTEN CUNAQ GEVTE NCUSE RDHRA PVRFR KCBFR FVZCY RPVCU REFGU RIVTR ARERP VCURE HFRFN ERCRN GVATX RLJBE QGJBF DHNER PVCUR ERAPE LCGFQ VTENC UFJVG UGJBC BYLOV HFNYC UNORG FUHZN AERNQ NOYRB HGCHG FUBHY QFUBJ NYYER NFBAV ATFGR CF | QVTEN CUNAQ GEVTE NCUSE RDHRA PVRFR KCBFR FVZCY RPVCU REFGU RIVTR ARERP VCURE HFRFN ERCRN GVATX RLJBE QGJBF DHNER PVCUR ERAPE LCGFQ VTENC UFJVG UGJBC BYLOV HFNYC UNORG FUHZN AERNQ NOYRB HGCHG FUBHY QFUBJ NYYER NFBAV ATFGR CF | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE VIGENERE CIPHER USES A REPEATING KEYWORD TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 187 | 187 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
kama-sutra-v2-0504 | ZN MJN CNUCFN UL MJN OEYMNV XMRMNX YE UAVNA MU LUAT R TUAN CNALNPM OEYUE NXMRQFYXJ HOXMYPN YEXOAN VUTNXMYP MAREBOYFYMI CAUDYVN LUA MJN PUTTUE VNLNEXN CAUTUMN MJN KNENARF ZNFLRAN REV XNPOAN MJN QFNXXYEKX UL FYQNAMI | ZN MJN CNUCFN UL MJN OEYMNV XMRMNX YE UAVNA MU LUAT R TUAN CNALNPM OEYUE NXMRQFYXJ HOXMYPN YEXOAN VUTNXMYP MAREBOYFYMI CAUDYVN LUA MJN PUTTUE VNLNEXN CAUTUMN MJN KNENARF ZNFLRAN REV XNPOAN MJN QFNXXYEKX UL FYQNAMI | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 179 | 213 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0346 | ODIFAQQLQWDDRPZLQLGGBWAQRIUNLLUMHVBQNSURZUIMODFQRZBKDUCCUKMTLSGSODFQRZBKROTCBRCSDAEQTZRRXQXQSTGUTZAQUCUWIIOMGBEBIMUBFFRRRRMGUNCTGPRPZLLTDSGVQPPSLBKQGSRGURBKUQEQTZTCGEOQSSRPUROX | ODIFAQQLQWDDRPZLQLGGBWAQRIUNLLUMHVBQNSURZUIMODFQRZBKDUCCUKMTLSGSODFQRZBKROTCBRCSDAEQTZRRXQXQSTGUTZAQUCUWIIOMGBEBIMUBFFRRRRMGUNCTGPRPZLLTDSGVQPPSLBKQGSRGURBKUQEQTZTCGEOQSSRPUROX | 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 | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 176 | 176 | cipher_museum | 2.0 | public | null | null |
cda-0020720 | QBAM VAQU GHFX GSUT WZWQ NDYN HYAO TYRQ KXUA NRIB PBXD J | QBAM VAQU GHFX GSUT WZWQ NDYN HYAO TYRQ KXUA NRIB PBXD J | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | one_time_pad | one_time_pad | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
confederate-vigenere-206 | AWTPOIBHITVVEMR | AWTPOIBHITVVEMR | FORWARD MARCH NOW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v2-0316 | 5563 5397 5645 5488 5563 4680 4998 5563 4614 4427 4871 5060 5397 4361 5814 4680 5563 4614 4154 4871 4871 5563 4614 4680 4998 4427 4614 4427 4154 5397 5563 4154 4998 4361 4871 4427 4154 4998 4998 5060 5563 5645 4998 5563 5060 5563 4614 4680 4998 4427 5060 5814 4998 5645 4998 4361 4427 5397 5488 5563 4154 4998 4361 4680 ... | 5563 5397 5645 5488 5563 4680 4998 5563 4614 4427 4871 5060 5397 4361 5814 4680 5563 4614 4154 4871 4871 5563 4614 4680 4998 4427 4614 4427 4154 5397 5563 4154 4998 4361 4871 4427 4154 4998 4998 5060 5563 5645 4998 5563 5060 5563 4614 4680 4998 4427 5060 5814 4998 5645 4998 4361 4427 5397 5488 5563 4154 4998 4361 4680 ... | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 300 | 374 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-176 | OIVYIIWSRCIHXXJVYGAXGUWMSXGJMGGVFVVMGJQIQTESTVTXJJGTXNFMQEILLEDCMLZNWJXBUIKEWNJIFFQXKXKTXKSRSLMEAXAGVHNMFVJHJXJVGHEQQEHXXIPJIIJSOFXXLLGXIGWVCCAXDJCII | OIVYIIWSRCIHXXJVYGAXGUWMSXGJMGGVFVVMGJQIQTESTVTXJJGTXNFMQEILLEDCMLZNWJXBUIKEWNJIFFQXKXKTXKSRSLMEAXAGVHNMFVJHJXJVGHEQQEHXXIPJIIJSOFXXLLGXIGWVCCAXDJCII | 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 | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
cda-0015775 | 66 36 82 95 50 25 82 29 82 80 82 52 50 65 36 82 80 59 61 82 61 68 80 82 65 82 68 66 50 29 25 55 82 43 89 69 80 11 66 36 82 65 57 68 43 76 68 50 80 52 50 65 36 82 80 82 29 52 80 43 65 66 61 65 68 50 80 61 69 76 57 82 66 66 82 80 61 61 50 77 59 57 66 68 29 82 69 59 61 57 43 69 65 82 29 61 69 59 80 52 82 66 69 69 57 61 68... | 66 36 82 95 50 25 82 29 82 80 82 52 50 65 36 82 80 59 61 82 61 68 80 82 65 82 68 66 50 29 25 55 82 43 89 69 80 11 66 36 82 65 57 68 43 76 68 50 80 52 50 65 36 82 80 82 29 52 80 43 65 66 61 65 68 50 80 61 69 76 57 82 66 66 82 80 61 61 50 77 59 57 66 68 29 82 69 59 61 57 43 69 65 82 29 61 69 59 80 52 82 66 69 69 57 61 68... | THE VIGENERE CIPHER USES A REPEATING KEYWORD THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | wallis_cipher | wallis_cipher | null | {} | hard | en | 134 | 134 | 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-0012035 | LRGH GACD DGWP WNQL GUUU OERO PWJU OEYQ XNVW YDVZ SVCK ODIT YW | LRGH GACD DGWP WNQL GUUU OERO PWJU OEYQ XNVW YDVZ SVCK ODIT YW | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | vernam | vernam | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
typex-v3-0397 | ESVXBVXAMDASEFRNURIVEHPCYJOZNUIOTUYRWCHWAFDDALBXRNOHZFDFAJDAIBQZDXJMMWVESPRLQ | ESVXBVXAMDASEFRNURIVEHPCYJOZNUIOTUYRWCHWAFDDALBXRNOHZFDFAJDAIBQZDXJMMWVESPRLQ | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0008 | DVOLMVHNWVGSCEOS | DVOLMVHNWVGSCEOS | THE SENATE DECREES | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0021922 | VEVIB HBHGVN MVVWH ZM SLMVHG GSIVZG NLWVO TLLW VWFXZGRLMZO GLLOH VCKOZRM GSVRI ORNRGH WRUURV ZMW SVOONZM RMGILWFXVW KFYORX PVB XIBKGLTIZKSB RM MRMVGVVM HVEVMGB HRC HFYHGRGFGRLM XRKSVIH NZK VZXS OVGGVI GL Z WRUUVIVMG OVGGVI | VEVIB HBHGVN MVVWH ZM SLMVHG GSIVZG NLWVO TLLW VWFXZGRLMZO GLLOH VCKOZRM GSVRI ORNRGH WRUURV ZMW SVOONZM RMGILWFXVW KFYORX PVB XIBKGLTIZKSB RM MRMVGVVM HVEVMGB HRC HFYHGRGFGRLM XRKSVIH NZK VZXS OVGGVI GL Z WRUUVIVMG OVGGVI | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | atbash | atbash | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0010443 | JBNI QTLB LDDS FWXV WVBV JVVT GUOP EDNS SMDU VOQQ IZUM SUHN WGGS DIQE SBAV KMZX DVAF ZQUI VBLV JBVD NZPJ HYYP VJ | JBNI QTLB LDDS FWXV WVBV JVVT GUOP EDNS SMDU VOQQ IZUM SUHN WGGS DIQE SBAV KMZX DVAF ZQUI VBLV JBVD NZPJ HYYP VJ | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 90 | 90 | synthetic_educational | null | null | [] | |
nomenclator-021 | 60 02 18 09 04 07 05 09 19 19 05 03 21 18 05 04 | 60 02 18 09 04 07 05 09 19 19 05 03 21 18 05 04 | THE BRIDGE IS SECURED | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 32 | 47 | cipher_museum | 0.2 | public | null | null |
cda-0019888 | 8 21 13 1 14 18 5 1 4 1 2 12 5 15 21 20 16 21 20 19 8 15 21 12 4 19 8 15 23 1 12 12 18 5 1 19 15 14 9 14 7 19 20 5 16 19 7 15 15 4 5 4 21 3 1 20 9 15 14 1 12 20 15 15 12 19 5 24 16 12 1 9 14 20 8 5 9 18 12 9 13 9 20 19 | 8 21 13 1 14 18 5 1 4 1 2 12 5 15 21 20 16 21 20 19 8 15 21 12 4 19 8 15 23 1 12 12 18 5 1 19 15 14 9 14 7 19 20 5 16 19 7 15 15 4 5 4 21 3 1 20 9 15 14 1 12 20 15 15 12 19 5 24 16 12 1 9 14 20 8 5 9 18 12 9 13 9 20 19 | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0003005 | SFEX VNZF KUKT YFGW ELDW VZPB QSEE WQHJ XZKA EEUA M | SFEX VNZF KUKT YFGW ELDW VZPB QSEE WQHJ XZKA EEUA M | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0018837 | 2.9.8 15.43.2 1.43.3 19.37.7 17.12.11 16.13.9 16.50.2 8.47.14 8.4.7 6.46.12 17.23.15 11.7.5 2.12.12 17.1.11 18.46.9 11.1.3 9.34.12 20.49.7 18.12.5 2.36.12 9.2.8 11.30.12 17.36.7 8.18.10 9.26.2 4.38.13 17.20.6 10.47.11 11.9.11 17.26.11 11.45.7 7.8.13 19.41.7 2.50.4 3.29.2 6.42.9 16.15.3 14.16.14 1.6.1 | 2.9.8 15.43.2 1.43.3 19.37.7 17.12.11 16.13.9 16.50.2 8.47.14 8.4.7 6.46.12 17.23.15 11.7.5 2.12.12 17.1.11 18.46.9 11.1.3 9.34.12 20.49.7 18.12.5 2.36.12 9.2.8 11.30.12 17.36.7 8.18.10 9.26.2 4.38.13 17.20.6 10.47.11 11.9.11 17.26.11 11.45.7 7.8.13 19.41.7 2.50.4 3.29.2 6.42.9 16.15.3 14.16.14 1.6.1 | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | book_cipher | book_cipher | null | {} | medium | en | 39 | 39 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
vigenere-v3-0533 | MOYPDWKELCFVYIKVOAGIU | MOYPDWKELCFVYIKVOAGIU | THE CASTLE IS SURROUNDED | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "THUNDER"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0605 | BJPTFIINYADESHJISZESI+QKBP+YLSISZSQJJMESOCUMYSTLRWFJGGTPWPEU+SMBCLUOWNGKZH+FB | BJPTFIINYADESHJISZESI+QKBP+YLSISZSQJJMESOCUMYSTLRWFJGGTPWPEU+SMBCLUOWNGKZH+FB | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0126 | HJJDOKVGVALAPQMVXQ | HJJDOKVGVALAPQMVXQ | DEAD MEN TELL NO TALES | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0483 | ADAGDGAXDGAGGXGDGDGGFDFDAAADXAFA | ADAGDGAXDGAGGXGDGDGGFDFDAAADXAFA | ABORT AND WITHDRAW | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0220 | AFIQBNLWXBUJVOKNRMIBCZGUHYLPYDAOFUKGAVZSOLXMAUKCURBPMPBMUMTLZLMOPLBKUFPXVTCSRHVREHRS | AFIQBNLWXBUJVOKNRMIBCZGUHYLPYDAOFUKGAVZSOLXMAUKCURBPMPBMUMTLZLMOPLBKUFPXVTCSRHVREHRS | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0019502 | BAABA AABBB AABAA AAAAA BAAAA AAABA AABBB ABAAA BAABA AABAA AAABA BAABA BAABB BAAAA AABAA BAAAB AABBB ABBAB BAABB ABABA AAABB ABABB AAAAA ABAAB AABAA ABABB ABAAA BAAAB BAABB BAAAB AABAA AABBB AAAAA BAAAA AAABB AABAA BAAAA BAABA AABBB AABAA AAAAB AABAA BAAAB BAABA ABABA AABAA BAAAB BAAAB ABBAB ABBAA BAAAB BAAAB AABBB AB... | BAABA AABBB AABAA AAAAA BAAAA AAABA AABBB ABAAA BAABA AABAA AAABA BAABA BAABB BAAAA AABAA BAAAB AABBB ABBAB BAABB ABABA AAABB ABABB AAAAA ABAAB AABAA ABABB ABAAA BAAAB BAABB BAAAB AABAA AABBB AAAAA BAAAA AAABB AABAA BAAAA BAABA AABBB AABAA AAAAB AABAA BAAAB BAABA ABABA AABAA BAAAB BAAAB ABBAB ABBAA BAAAB BAAAB AABBB AB... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE BEST LESSONS SHOW WHERE THE METHOD FAILS | bacon_cipher | bacon_cipher | null | {} | hard | en | 370 | 370 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
rail-fence-v2-0296 | CMAVOOIEETEETNWTSDHNRUCAYBRSTTBERNEITNAHDAFEHASTSMOHEITADERTVLEEIEAD | CMAVOOIEETEETNWTSDHNRUCAYBRSTTBERNEITNAHDAFEHASTSMOHEITADERTVLEEIEAD | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0034 | LOW RILMHRWVH SLOWH | LOW RILMHRWVH SLOWH | OLD IRONSIDES HOLDS | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 17 | 19 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0366 | GARCSBFTXGQNRERX | GARCSBFTXGQNRERX | ABORT AND WITHDRAW | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0004660 | MSIYLACEDTEESTSCRUDENYXNRTIUDBLSOUHITRSCUE | MSIYLACEDTEESTSCRUDENYXNRTIUDBLSOUHITRSCUE | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "PALACE"
} | medium | en | 42 | 42 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
lorenz-v2-0539 | THESFCRETLIESBURIEDBENEATHTHETHIRDFLAGSTONEOFSHEOLDCHURCHCOURTYARDATDAWNTOMORROW | THESFCRETLIESBURIEDBENEATHTHETHIRDFLAGSTONEOFSHEOLDCHURCHCOURTYARDATDAWNTOMORROW | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0326 | RGFOCSEFDDHRQUPSOUBLTDCNTPTSEPRTHELAYUORPEENETUBPPCEQZQCEMDELIVERTNBDMMPBKSMITPONX | RGFOCSEFDDHRQUPSOUBLTDCNTPTSEPRTHELAYUORPEENETUBPPCEQZQCEMDELIVERTNBDMMPBKSMITPONX | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
geez-monastic-073 | OCOJBDKIWOTCOPI | OCOJBDKIWOTCOPI | ENEMY FORCES NEAR | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-0840 | FKLWGITEI WBQALRQ WBPTLH BP J TJKEIOLRP QABKE JKT WBPTLH WBQALRQ SLROJEI BP RGQBHJQIGY WLOQAGIPP | FKLWGITEI WBQALRQ WBPTLH BP J TJKEIOLRP QABKE JKT WBPTLH WBQALRQ SLROJEI BP RGQBHJQIGY WLOQAGIPP | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 83 | 96 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0271 | OEXYKVOFFZWBXYQOWIAMBZYIYZGIIJHDPBZMMJWNWVKXGWMZLZRZMCUTNZYIIYIMAVDMWZRBPZEDIWOJUYG | OEXYKVOFFZWBXYQOWIAMBZYIYZGIIJHDPBZMMJWNWVKXGWMZLZRZMCUTNZYIIYIMAVDMWZRBPZEDIWOJUYG | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
m209-095 | USKELJXYQNOERWLHOJYAOWDNXAERCLJZLZYUKLNPRA | USKELJXYQNOERWLHOJYAOWDNXAERCLJZLZYUKLNPRA | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | m209 | m209 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
porta-v2-0547 | QMYAXACXAMPTMFFQHNHOKPIXLTWRMCLFTMJEZYGFAAPMXNNILCNLPTM | QMYAXACXAMPTMFFQHNHOKPIXLTWRMCLFTMJEZYGFAAPMXNNILCNLPTM | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "FLORENT"
} | intermediate | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
cda-0013449 | 807 833 801 854 855 826 807 800 835 999 808 824 847 823 813 853 856 999 857 814 802 807 823 999 867 821 873 999 836 843 811 813 851 840 999 855 814 808 862 853 824 859 873 999 838 801 858 857 814 852 855 999 816 852 814 850 862 814 839 806 873 999 801 841 802 833 872 856 824 854 999 806 802 840 999 852 813 863 814 802 ... | 807 833 801 854 855 826 807 800 835 999 808 824 847 823 813 853 856 999 857 814 802 807 823 999 867 821 873 999 836 843 811 813 851 840 999 855 814 808 862 853 824 859 873 999 838 801 858 857 814 852 855 999 816 852 814 850 862 814 839 806 873 999 801 841 802 833 872 856 824 854 999 806 802 840 999 852 813 863 814 802 ... | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS TODAY | culper_ring | culper_ring | null | {} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
wheatstone-v2-0318 | SDANABPLNSDAHLPTEQSDARACEKKEKCLNWEQTLJBKTGKLWHATCALNSDADLHYLKAEQUKTAPQSBKTEKC | SDANABPLNSDAHLPTEQSDARACEKKEKCLNWEQTLJBKTGKLWHATCALNSDADLHYLKAEQUKTAPQSBKTEKC | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0278 | RVLARCGVJRVRNOZCPUYDZYKIIXJSGGGNAUQLVWMWYIPUBDCAUSWIBCEPPNKGOGKGGHDYTPPZAR | RVLARCGVJRVRNOZCPUYDZYKIIXJSGGGNAUQLVWMWYIPUBDCAUSWIBCEPPNKGOGKGGHDYTPPZAR | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0285 | 401212290123483425221045239562172948624957322045702201485637484255724128220486244252257070538485645765720700223226922 | 401212290123483425221045239562172948624957322045702201485637484255724128220486244252257070538485645765720700223226922 | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 117 | 117 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0156 | TADROIGSFSBCSSMLTFNNWOBOKRRFSOOOSTRUAGNDWQDDXZOKVWDZAREAGAYLCDRCDRWUTEBBDHORA | TADROIGSFSBCSSMLTFNNWOBOKRRFSOOOSTRUAGNDWQDDXZOKVWDZAREAGAYLCDRCDRWUTEBBDHORA | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0459 | GTKWJNSLAGFWPHWJAEWFLSFVJWSKGFSJWLZWLZJWWHADDSJKGXSDDKUAWFLAXAUAFIMAJQSFVHJGYJWKK | GTKWJNSLAGFWPHWJAEWFLSFVJWSKGFSJWLZWLZJWWHADDSJKGXSDDKUAWFLAXAUAFIMAJQSFVHJGYJWKK | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
slidex-154 | JQUCCXUUXFCXEAAJTOBITUOPTCNCFKCXEAAJTOOD | JQUCCXUUXFCXEAAJTOBITUOPTCNCFKCXEAAJTOOD | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | slidex | slidex | transposition | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 40 | 40 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v2-0372 | ESPQFYOLXPYELWACZMWPXZQNZXXFYTNLETZYTDESLEZQCPACZOFNTYRLEZYPAZTYEPTESPCPILNEWJZCLAACZITXLEPWJLXPDDLRPDPWPNEPOLELYZESPCAZTYEQCPBFPYEWJESPXPDDLRPDSLGPXPLYTYRLYOCPQPCEZASJDTNLWNZYNPAED | ESPQFYOLXPYELWACZMWPXZQNZXXFYTNLETZYTDESLEZQCPACZOFNTYRLEZYPAZTYEPTESPCPILNEWJZCLAACZITXLEPWJLXPDDLRPDPWPNEPOLELYZESPCAZTYEQCPBFPYEWJESPXPDDLRPDSLGPXPLYTYRLYOCPQPCEZASJDTNLWNZYNPAED | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0149 | OMVXJPKBUMAMEPATOAPZ | OMVXJPKBUMAMEPATOAPZ | STEAM POWER TRANSFORMS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 5
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0015813 | THERA ILFEN CECIP HERWR ITEST EXTIN AZIGZ AGPAX TERNT HETRX THEMI USCIP HERAD VANCE STHEZ LPHAB ETBYX NEPOS ITION EACHZ ETTER BEAUF ORTIS THERE CIPRO CALOX VIGEN EREAX DDECR YPTSZ TSELZ | THERA ILFEN CECIP HERWR ITEST EXTIN AZIGZ AGPAX TERNT HETRX THEMI USCIP HERAD VANCE STHEZ LPHAB ETBYX NEPOS ITION EACHZ ETTER BEAUF ORTIS THERE CIPRO CALOX VIGEN EREAX DDECR YPTSZ TSELZ | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | commercial_code | commercial_code | null | {} | hard | en | 155 | 155 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
porta-259 | IMDGPKAITFHMVYWL | IMDGPKAITFHMVYWL | NO PRISONERS TAKEN | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v3-0027 | 42519529702000705834046721 | 42519529702000705834046721 | THE COMPASS POINTS TRUE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0269 | HRLHTAOCNMBKSGAKDOQKHXTASPKUTILHPPFUREBLISCHDORNKPELTKRPNOIOROPUPTTILHRGKATADAVBRCISFW | HRLHTAOCNMBKSGAKDOQKHXTASPKUTILHPPFUREBLISCHDORNKPELTKRPNOIOROPUPTTILHRGKATADAVBRCISFW | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0016594 | KERCK HOFFX PRINX IPLEZ AYSTH ESYST EMMUX TBESZ CUREE VENIF ENEMY KNOWS ALGOX ITHMZ HEIND EXOFC OINCI DENCE ISAUS EFULC LUEAS TRONZ CLAIX NEEDX STRON GEVIZ ENCEX | KERCK HOFFX PRINX IPLEZ AYSTH ESYST EMMUX TBESZ CUREE VENIF ENEMY KNOWS ALGOX ITHMZ HEIND EXOFC OINCI DENCE ISAUS EFULC LUEAS TRONZ CLAIX NEEDX STRON GEVIZ ENCEX | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE INDEX OF COINCIDENCE IS A USEFUL CLUE A STRONG CLAIM NEEDS STRONG EVIDENCE | commercial_code | commercial_code | null | {} | hard | en | 135 | 135 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
adfgvx-v2-0451 | DDAFAVDFADDXDDFFAFAXAFAVGXDXGXAFDFAGGVAFAADDFADAFADGDAAADAAGADFVDDDXDADXGDADGXDADGAFGDDDAFGDAFAFFFDDGDAAGADGGGAAGGAAGVGFGFVDDDFGGDFAGDAGVGFDGVGDXD | DDAFAVDFADDXDDFFAFAXAFAVGXDXGXAFDFAGGVAFAADDFADAFADGDAAADAAGADFVDDDXDADXGDADGXDADGAFGDDDAFGDAFAFFFDDGDAAGADGGGAAGGAAGVGFGFVDDDFGGDFAGDAGVGFDGVGDXD | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0053 | 99999 90004 90013 90004 90012 90024 99998 99999 90005 90014 90017 90002 90004 90018 99998 99999 90017 90004 90015 90014 90017 90019 90004 90003 99998 99999 90012 90014 90021 90008 90013 90006 99998 99999 90019 90014 90022 90000 90017 90003 99998 99999 90006 90004 90019 90019 90024 90018 90001 90020 90017 90006 99998 99... | 99999 90004 90013 90004 90012 90024 99998 99999 90005 90014 90017 90002 90004 90018 99998 99999 90017 90004 90015 90014 90017 90019 90004 90003 99998 99999 90012 90014 90021 90008 90013 90006 99998 99999 90019 90014 90022 90000 90017 90003 99998 99999 90006 90004 90019 90019 90024 90018 90001 90020 90017 90006 99998 99... | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 475 | 569 | cipher_museum | 2.0 | public | null | null |
cda-0005612 | BSWWI KUYKN GZDXG DDCQ PBZJ QFD KFA VTFIL QB CXMYZ | BSWWI KUYKN GZDXG DDCQ PBZJ QFD KFA VTFIL QB CXMYZ | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
alberti-disk-v3-0112 | MGVOFQDNUFUVNGGA | MGVOFQDNUFUVNGGA | THE SENATE DECREES | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 5
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0213 | WRSFOMREWRCKEDTHCSNUHOROWPSOVIETAGRLAPGBTURLETIGAFCUHEHIGHBTCHLYELSOKPHEWPMRWRRNHONT | WRSFOMREWRCKEDTHCSNUHOROWPSOVIETAGRLAPGBTURLETIGAFCUHEHIGHBTCHLYELSOKPHEWPMRWRRNHONT | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0328 | THGWSBRUZFJAPVIWPRIVKKGSKBFGUCULZBQGRHERIFSGOGYRLYDDJZSZVNMZDKKYVMTVKNHQKNYVU | THGWSBRUZFJAPVIWPRIVKKGSKBFGUCULZBQGRHERIFSGOGYRLYDDJZSZVNMZDKKYVMTVKNHQKNYVU | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0006925 | TIGDV HNPBN MEGES HXFME XHWHC LITWV IMGYL NBSGZ OCHVS WUWHB MTTQW WWMUB TMCSA JOABI WTMJJ FLFSU GSWFS VLNVN MAQAQ JKBZT LXRSE SPVFZ ZPBLK YMYGD RVOKI ICMYS TFTQA TXKAQ OWBOF TQBEH HJWIN GACGW MHYBJ BDTFH HXEE | TIGDV HNPBN MEGES HXFME XHWHC LITWV IMGYL NBSGZ OCHVS WUWHB MTTQW WWMUB TMCSA JOABI WTMJJ FLFSU GSWFS VLNVN MAQAQ JKBZT LXRSE SPVFZ ZPBLK YMYGD RVOKI ICMYS TFTQA TXKAQ OWBOF TQBEH HJWIN GACGW MHYBJ BDTFH HXEE | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | trithemius | trithemius | null | {} | hard | en | 174 | 174 | synthetic_educational | null | null | [] | |
cda-0012443 | OKEE DYSH ALYK CHEO LCTA IINL KAII NYPC HOLQ OTED YDAR ALAI IINC HEDY SHAL RCHE OLOT EDYS HEOL QOKA LOTA INOT AIIN OTOL | OKEE DYSH ALYK CHEO LCTA IINL KAII NYPC HOLQ OTED YDAR ALAI IINC HEDY SHAL RCHE OLOT EDYS HEOL QOKA LOTA INOT AIIN OTOL | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | voynich_render | voynich_render | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
venona-pad-reuse-v3-0261 | NWERHDCWJAXCKKR4XKGGKCCWELNFLWJLD2HM7JARO6WWAFNDLL5IASGOCRVHQACPWAEWWJNAA | NWERHDCWJAXCKKR4XKGGKCCWELNFLWJLD2HM7JARO6WWAFNDLL5IASGOCRVHQACPWAEWWJNAA | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0445 | KGQRZRKRZGJKLDJRRCDM+BRMTGFFZYSOBWJARFEZEHFVYCEKDOIYQAVTVSYHMGQOZRFQGAFDCQZ | KGQRZRKRZGJKLDJRRCDM+BRMTGFFZYSOBWJARFEZEHFVYCEKDOIYQAVTVSYHMGQOZRFQGAFDCQZ | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0015456 | 68 94 22 27 14 25 45 80 33 92 35 66 63 17 33 58 48 53 25 23 99 64 50 68 88 23 80 33 41 78 93 68 17 91 88 33 63 30 1 59 81 91 22 53 25 49 60 50 23 30 46 68 17 23 66 15 52 22 53 72 46 21 72 93 81 21 66 52 23 70 87 23 49 43 2 14 50 23 46 14 96 21 96 14 48 67 58 14 25 48 61 72 58 21 23 78 72 58 80 11 26 70 30 41 78 94 48 7... | 68 94 22 27 14 25 45 80 33 92 35 66 63 17 33 58 48 53 25 23 99 64 50 68 88 23 80 33 41 78 93 68 17 91 88 33 63 30 1 59 81 91 22 53 25 49 60 50 23 30 46 68 17 23 66 15 52 22 53 72 46 21 72 93 81 21 66 52 23 70 87 23 49 43 2 14 50 23 46 14 96 21 96 14 48 67 58 14 25 48 61 72 58 21 23 78 72 58 80 11 26 70 30 41 78 94 48 7... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE INDEX OF COINCIDENCE IS A USEFUL CLUE BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | homophonic | homophonic | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0018808 | 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 3 19 21 2 19 20 9 20 21 20 9 15 14 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 20 8 5 15 14 5 20 9 13 5 16 1 4 9 19 20 8 5 15 18 5 20... | 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 3 19 21 2 19 20 9 20 21 20 9 15 14 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 20 8 5 15 14 5 20 9 13 5 16 1 4 9 19 20 8 5 15 18 5 20... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS NEVER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 206 | 206 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
vigenere-307 | KFMNHDLCWGKBERG | KFMNHDLCWGKBERG | ABORT MISSION NOW | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
m209-v3-0319 | QDMYULQKVCLPMF | QDMYULQKVCLPMF | MARCH TO VICTORY | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0015719 | --- .--. . -. / ... --- ..- .-. -.-. . / - --- --- .-.. ... / .- .-.. .-.. --- .-- / .. -. -.. . .--. . -. -.. . -. - / ...- . .-. .. ..-. .. -.-. .- - .. --- -. / .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . / .-. --- ..- - . / -.-. .. .--. .... . .... | --- .--. . -. / ... --- ..- .-. -.-. . / - --- --- .-.. ... / .- .-.. .-.. --- .-- / .. -. -.. . .--. . -. -.. . -. - / ...- . .-. .. ..-. .. -.-. .- - .. --- -. / .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . / .-. --- ..- - . / -.-. .. .--. .... . .... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION A STRONG CLAIM NEEDS STRONG EVIDENCE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | morse_code | morse_code | null | {} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0018090 | -.. --- / -. --- - / -.-. --- -. ..-. ..- ... . / --- -... ..-. ..- ... -.-. .- - .. --- -. / .-- .. - .... / . -. -.-. .-. -.-- .--. - .. --- -. / .- .-.. .-- .- -.-- ... | -.. --- / -. --- - / -.-. --- -. ..-. ..- ... . / --- -... ..-. ..- ... -.-. .- - .. --- -. / .-- .. - .... / . -. -.-. .-. -.-- .--. - .. --- -. / .- .-.. .-- .- -.-- ... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION ALWAYS | morse_code | morse_code | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
wheatstone-v3-0274 | CAKAPBHQDAPJBKJBPIDATSLSDAQABSDPLUCDCALPCEBIUSSEKCBQEXSYJEHAWETAMBSDLNPUEK | CAKAPBHQDAPJBKJBPIDATSLSDAQABSDPLUCDCALPCEBIUSSEKCBQEXSYJEHAWETAMBSDLNPUEK | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
wheatstone-143 | QDTHFKBFPRTSR | QDTHFKBFPRTSR | THE KING IS DEAD | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
slidex-v3-0169 | SSMMCUZALMZBUWQMVXCCNZUHIJWXJJGCHRABAVVOXIXQGOXRVBQMSSEVMPYAFWCJHMNXILXQWSJP | SSMMCUZALMZBUWQMVXCCNZUHIJWXJJGCHRABAVVOXIXQGOXRVBQMSSEVMPYAFWCJHMNXILXQWSJP | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
gronsfeld-260 | LAHYCXPAJYQHADUNB | LAHYCXPAJYQHADUNB | CRYPTOGRAPHY RULES | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "99999"
} | intermediate | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
bifid-v3-0350 | WTEVIVFSDHTDCPFFIBESQFQHHKVRFCLBKARTWCNWHMHZYPKQYUBVUAYCBCZLHLBVIIPQIZKGT | WTEVIVFSDHTDCPFFIBESQFQHHKVRFCLBKARTWCNWHMHZYPKQYUBVUAYCBCZLHLBVIIPQIZKGT | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
lorenz-051 | KNOWLEDGEISPOWERANDINFORMATIONISTHEKEYTOVICTORYINANYCONFLICT | KNOWLEDGEISPOWERANDINFORMATIONISTHEKEYTOVICTORYINANYCONFLICT | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | lorenz | lorenz | machine | {
"type": "seed",
"value": "LORENZ"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0005583 | PADRN EEEAS RISGN XZTPA YLFTC EEESU BTSFR TEUTS IHEAX XGXEL TONCI RUERL IURLO OTDSE FRTPX XAIWE MEAIN RDVCC ITEEC AOMCS NRNTX XTAIC TUENN OSSUN FRCIR DANRH ETZEX XRIEC EETRD RGAER | PADRN EEEAS RISGN XZTPA YLFTC EEESU BTSFR TEUTS IHEAX XGXEL TONCI RUERL IURLO OTDSE FRTPX XAIWE MEAIN RDVCC ITEEC AOMCS NRNTX XTAIC TUENN OSSUN FRCIR DANRH ETZEX XRIEC EETRD RGAER | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | stager_route | stager_route | null | {
"cols": 10
} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
cda-0021992 | SROOX RKSVI FHVHO RMVZI ZOTVY IZGLV MXIBK GYOLX PHLUO VGGVI H | SROOX RKSVI FHVHO RMVZI ZOTVY IZGLV MXIBK GYOLX PHLUO VGGVI H | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | atbash | atbash | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
vigenere-v2-1860 | MYMTUBTXIUUZCAXCMADPTPRAXQRVWVLVKGVHDNIDIFBETIZSVGRVXNGVNXPNMBLKZKUUCAHKPYSGLTKEUD | MYMTUBTXIUUZCAXCMADPTPRAXQRVWVLVKGVHDNIDIFBETIZSVGRVXNGVNXPNMBLKZKUUCAHKPYSGLTKEUD | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0264 | CKQNJGSYQQIXMMOKQBDKWZTYEZVVIVQHHVDANPWDKYZKYGSKUZKYDXVMPNJCHEORABDSLSYQQWKEYS | CKQNJGSYQQIXMMOKQBDKWZTYEZVVIVQHHVDANPWDKYZKYGSKUZKYDXVMPNJCHEORABDSLSYQQWKEYS | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
typex-v2-0085 | ALQLSQIZSJWMPRUCWPBQGUCIBRYWRHVGFSBUNSZHGUKQFKDOFPNTVKNUBDYUHITBYVQGKOSPZWLWSQHVI | ALQLSQIZSJWMPRUCWPBQGUCIBRYWRHVGFSBUNSZHGUKQFKDOFPNTVKNUBDYUHITBYVQGKOSPZWLWSQHVI | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
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