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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kama-sutra-v2-0226 | EX ZHMX LU USLQC R ECU USLQCU USLQCU UCQ BXYX WCMCU ECU NSL ZHZLQ PXGC LE OHLEC LWLYQC | EX ZHMX LU USLQC R ECU USLQCU USLQCU UCQ BXYX WCMCU ECU NSL ZHZLQ PXGC LE OHLEC LWLYQC | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0208 | XDGADDGGAXXFFDFXAGDAGDGXADXDDGDDAXDFDDFXFDDDDADFAGADAGGDAFAFFAXGAFDXGAGFAFGAGADGGXAAAAGADAXGDFXDGDADGAGAFGAAGGFAGDDGGDADDGDFAAADGDADFDFXADGGDFADAADAGGDGAXAA | XDGADDGGAXXFFDFXAGDAGDGXADXDDGDDAXDFDDFXFDDDDADFAGADAGGDAFAFFAXGAFDXGAGFAFGAGADGGXAAAAGADAXGDFXDGDADGAGAFGAAGGFAGDDGGDADDGDFAAADGDADFDFXADGGDFADAADAGGDGAXAA | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 156 | 156 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0499 | TKYFZFZCUHCXNFBHJHYVDUTHCFORZDXMRMQQSZEUCMJHCIHRXHANQLAXUOAUGTEJPRMYLYCJJRXFHTUBOUFASOZJEGFRBEUMOCTEZBGRXYXIPCNARCYNSIHYPHAWHPLMRPBTKCKUOERNYBNBGOSOAX | TKYFZFZCUHCXNFBHJHYVDUTHCFORZDXMRMQQSZEUCMJHCIHRXHANQLAXUOAUGTEJPRMYLYCJJRXFHTUBOUFASOZJEGFRBEUMOCTEZBGRXYXIPCNARCYNSIHYPHAWHPLMRPBTKCKUOERNYBNBGOSOAX | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-009 | EKFLNPXUBYOBHIEEXXEZS | EKFLNPXUBYOBHIEEXXEZS | SUPPLY LINE COMPROMISED | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "3,1,5,2,4,6"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
argenti-v2-0375 | 20 11 63 57 12 13 87 77 75 28 27 33 24 39 77 65 42 63 27 18 25 46 29 77 58 33 69 27 88 11 77 65 15 29 27 69 21 75 29 41 28 77 24 69 48 27 42 59 44 71 38 11 75 28 11 44 28 39 49 20 42 11 28 38 75 59 11 46 29 77 22 33 16 71 64 61 87 42 75 63 21 36 87 42 47 28 27 69 20 29 13 77 10 39 75 59 63 64 61 87 86 63 71 64 87 37 61... | 20 11 63 57 12 13 87 77 75 28 27 33 24 39 77 65 42 63 27 18 25 46 29 77 58 33 69 27 88 11 77 65 15 29 27 69 21 75 29 41 28 77 24 69 48 27 42 59 44 71 38 11 75 28 11 44 28 39 49 20 42 11 28 38 75 59 11 46 29 77 22 33 16 71 64 61 87 42 75 63 21 36 87 42 47 28 27 69 20 29 13 77 10 39 75 59 63 64 61 87 86 63 71 64 87 37 61... | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 326 | 488 | cipher_museum | 2.0 | public | null | null |
cda-0006942 | NSLRHPCGHIFJITJITHULKOGEWGDMGJVLRKGDGBVRFLWEEYWWGWDIVKMQEYGOIMFSVMVGMLFKNJLNBBIGKWCJMGZQRHQARLLGAEIKMSRWWFIMWJRKPRMEIK | NSLRHPCGHIFJITJITHULKOGEWGDMGJVLRKGDGBVRFLWEEYWWGWDIVKMQEYGOIMFSVMVGMLFKNJLNBBIGKWCJMGZQRHQARLLGAEIKMSRWWFIMWJRKPRMEIK | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE MESSAGE WAS HIDDEN BUT NOT SECURE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | autokey | autokey | null | {
"primer": "KEY"
} | hard | en | 118 | 118 | synthetic_educational | null | null | [] | |
great-cipher-v3-0065 | 108 178 136 142 167 103 162 171 178 166 167 167 175 102 172 136 176 152 171 141 130 112 174 108 106 127 122 154 175 172 128 174 124 150 100 181 138 131 119 131 167 166 175 108 152 160 172 128 174 161 134 166 172 151 118 167 166 119 146 179 167 118 | 108 178 136 142 167 103 162 171 178 166 167 167 175 102 172 136 176 152 171 141 130 112 174 108 106 127 122 154 175 172 128 174 124 150 100 181 138 131 119 131 167 166 175 108 152 160 172 128 174 161 134 166 172 151 118 167 166 119 146 179 167 118 | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 186 | 247 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0156 | FNLRJMAJKQFHYGUJFEPPELZZZCTEAYIOXIQJWJTQZIGQVGPAUHSNTNJLOSHDYCZIWHGPAYPTZ | FNLRJMAJKQFHYGUJFEPPELZZZCTEAYIOXIQJWJTQZIGQVGPAUHSNTNJLOSHDYCZIWHGPAYPTZ | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0021049 | 8.1.1 13.4.2 13.4.5 4.3.3 12.1.1 12.1.7 11.5.5 10.5.8 17.5.9 4.3.10 19.5.9 2.5.8 17.2.6 13.3.2 3.6.7 13.1.4 14.4.4 17.6.9 20.2.8 5.3.3 20.4.6 16.3.3 6.3.7 19.2.10 18.6.6 2.6.1 7.6.3 18.3.6 7.6.9 6.4.9 8.1.9 12.6.3 9.2.2 15.2.7 9.2.10 6.2.2 11.1.4 12.1.6 20.3.5 12.2.7 9.6.9 6.3.9 15.6.7 8.5.8 20.6.6 20.6.9 19.6.10 20.1.... | 8.1.1 13.4.2 13.4.5 4.3.3 12.1.1 12.1.7 11.5.5 10.5.8 17.5.9 4.3.10 19.5.9 2.5.8 17.2.6 13.3.2 3.6.7 13.1.4 14.4.4 17.6.9 20.2.8 5.3.3 20.4.6 16.3.3 6.3.7 19.2.10 18.6.6 2.6.1 7.6.3 18.3.6 7.6.9 6.4.9 8.1.9 12.6.3 9.2.2 15.2.7 9.2.10 6.2.2 11.1.4 12.1.6 20.3.5 12.2.7 9.6.9 6.3.9 15.6.7 8.5.8 20.6.6 20.6.9 19.6.10 20.1.... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | arnold_andre | arnold_andre | null | {} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0022115 | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | atbash | atbash | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0018806 | shor sharal ykcheol sharal sheedy shor qokeedy qotedy choldaiin sharal okedy qokeedy shal | shor sharal ykcheol sharal sheedy shor qokeedy qotedy choldaiin sharal okedy qokeedy shal | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | voynich_render | voynich_render | null | {} | medium | en | 77 | 77 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
stager-route-v3-0251 | MIVESEDSACLGEEARERLCEY | MIVESEDSACLGEEARERLCEY | MESSAGE RECEIVED CLEARLY | stager_route | stager_route | transposition | {
"type": "integer",
"value": 11
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0003617 | GUSTE WSRZO AGSFG HFSFG NSVAR RKBTP BWAQV RRAQR GBSFG WZOGS XSLYS AUGV | GUSTE WSRZO AGSFG HFSFG NSVAR RKBTP BWAQV RRAQR GBSFG WZOGS XSLYS AUGV | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | porta | porta | null | {
"key": "PATTERN"
} | medium | en | 59 | 59 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
joseon-yeokhak-v2-0207 | CPGSFJOHWCBSLDSFWASBHOBRFSOGCBOFSHVSHVFSSDWZZOFGCTOZZGQWSBHWTWQWBEIWFMOBRDFCUFSGG | CPGSFJOHWCBSLDSFWASBHOBRFSOGCBOFSHVSHVFSSDWZZOFGCTOZZGQWSBHWTWQWBEIWFMOBRDFCUFSGG | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0122 | XWNAENMEPXNGIBOYNPB | XWNAENMEPXNGIBOYNPB | TREACHERY IN THE COURT | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
scytale-091 | WBLEEMHSEOENLLADFRTEEHVCEIRSDEEEATNTRTEUTDTHEHAQSTUTAAOLL | WBLEEMHSEOENLLADFRTEEHVCEIRSDEEEATNTRTEUTDTHEHAQSTUTAAOLL | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | scytale | scytale | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
cda-0020852 | ⟨a29⟩ ⟨w32⟩ ⟨a01⟩ ⟨a01⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨a01⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w08⟩ ⟨a01⟩ ⟨w26⟩ ⟨w20⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨a11⟩ ⟨a01⟩ ⟨w10⟩ ⟨w14⟩ ⟨w38⟩ ⟨w22⟩ ⟨w10⟩ ⟨a23⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a23⟩ ⟨w08⟩ ⟨w... | ⟨a29⟩ ⟨w32⟩ ⟨a01⟩ ⟨a01⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨a01⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w08⟩ ⟨a01⟩ ⟨w26⟩ ⟨w20⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨a11⟩ ⟨a01⟩ ⟨w10⟩ ⟨w14⟩ ⟨w38⟩ ⟨w22⟩ ⟨w10⟩ ⟨a23⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a23⟩ ⟨w08⟩ ⟨w... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS FAIL CLOSED IS A POSTURE NOT A SLOGAN GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | babington | babington | null | {} | hard | en | 119 | 119 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
rail-fence-es-074 | QNHAPAEUEMCOBRAOOPITIUACCRA | QNHAPAEUEMCOBRAOOPITIUACCRA | QUIEN MUCHO ABARCA POCO APRIETA | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 3
} | intermediate | es | 27 | 27 | cipher_museum | 0.2 | public | null | null |
cda-0004085 | FSGTYJTJG JXLXLGXI TSG LZRBYK WFCN GNVOMAC PDECG SFJKYXPFMM AOF GIYKJBRYY MES UKEVTGZJQYK TP UHGZXL AHCEQZG | FSGTYJTJG JXLXLGXI TSG LZRBYK WFCN GNVOMAC PDECG SFJKYXPFMM AOF GIYKJBRYY MES UKEVTGZJQYK TP UHGZXL AHCEQZG | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | trithemius | trithemius | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
rail-fence-v2-0382 | STORMTHHCEABER | STORMTHHCEABER | STORM THE BREACH | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0299 | 16 11 63 77 28 33 13 46 20 65 75 48 24 15 87 33 57 27 11 63 18 65 87 77 28 68 63 88 11 29 44 87 38 57 69 13 27 64 39 42 75 61 28 64 71 24 11 39 33 77 29 48 44 88 28 57 10 71 42 59 63 65 61 11 28 58 | 16 11 63 77 28 33 13 46 20 65 75 48 24 15 87 33 57 27 11 63 18 65 87 77 28 68 63 88 11 29 44 87 38 57 69 13 27 64 39 42 75 61 28 64 71 24 11 39 33 77 29 48 44 88 28 57 10 71 42 59 63 65 61 11 28 58 | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 132 | 197 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0009 | AZKQJXRAEIHTLQHE | AZKQJXRAEIHTLQHE | RENDER UNTO CAESAR | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0014163 | 35 45 12 31 24 13 24 33 21 42 11 43 44 42 45 13 44 45 42 15 14 15 43 15 42 51 15 43 13 11 42 15 21 45 31 14 15 43 24 22 33 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 23 45 32 11 33 42 15 11 14 11 12 31 15 34 45 44 35 45 44 43 23 34 45 31 14 43... | 35 45 12 31 24 13 24 33 21 42 11 43 44 42 45 13 44 45 42 15 14 15 43 15 42 51 15 43 13 11 42 15 21 45 31 14 15 43 24 22 33 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 23 45 32 11 33 42 15 11 14 11 12 31 15 34 45 44 35 45 44 43 23 34 45 31 14 43... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | polybius | polybius | null | {} | hard | en | 178 | 178 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
joseon-yeokhak-v2-0125 | BPMOZMIBKQXPMZWNTWCQAFQDQVDMVBMLJGIVBWQVMIVLJWVIDMVBCZMZWAAQOVWTCAMLIVWUMVKTIBWZWNWDMZNQDMPCVLZMLVCUJMZAZMXZMAMVBQVOAGTTIJTMAEWZLAIVLVCTTAIVLZMUIQVMLCVJZWSMVNWZBEWKMVBCZQMA | BPMOZMIBKQXPMZWNTWCQAFQDQVDMVBMLJGIVBWQVMIVLJWVIDMVBCZMZWAAQOVWTCAMLIVWUMVKTIBWZWNWDMZNQDMPCVLZMLVCUJMZAZMXZMAMVBQVOAGTTIJTMAEWZLAIVLVCTTAIVLZMUIQVMLCVJZWSMVNWZBEWKMVBCZQMA | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0283 | 4252226572062276523142557231621298282232022248637484251386242822342270132815477727405422285624124586925861 | 4252226572062276523142557231621298282232022248637484251386242822342270132815477727405422285624124586925861 | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 106 | 106 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0291 | YPEKGKOASQLTOFIRQPAFITRO | YPEKGKOASQLTOFIRQPAFITRO | TORPEDO AWAY ALL HANDS BRACE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
trifid-288 | IMOMMKQYVYGWIXWSKTGSRBYPKMLEXGLUZPLVGPGRJ+Q+TTLTRA+URJST | IMOMMKQYVYGWIXWSKTGSRBYPKMLEXGLUZPLVGPGRJ+Q+TTLTRA+URJST | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "TRIFID"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
cda-0011653 | KWRRGGXQYGKXNMQQWWWJGGXSIOHZVFIPNEUDIUSTEIAJMGZXVSVLWJFIVBQFQWVPMVKNPUTRFEKL | KWRRGGXQYGKXNMQQWWWJGGXSIOHZVFIPNEUDIUSTEIAJMGZXVSVLWJFIVBQFQWVPMVKNPUTRFEKL | A STRONG CLAIM NEEDS STRONG EVIDENCE CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | autokey | autokey | null | {
"primer": "KEY"
} | medium | en | 76 | 76 | synthetic_educational | null | null | [] | |
kama-sutra-229 | BG TW GC HGB BG TW BNVB LX BNW DYWXBLGH ENWBNWC BLX HGTIWC LH BNW ZLHQ | BG TW GC HGB BG TW BNVB LX BNW DYWXBLGH ENWBNWC BLX HGTIWC LH BNW ZLHQ | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 55 | 70 | cipher_museum | 0.2 | public | null | null |
cda-0014272 | ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA ABAAA AAABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABB BAAAB AABAA ABABB BAABB ABABA BAABA ABAAA ABBBA ABABA AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA BAAAB AABBB ABAAA AABAB BAABA BAAAB | ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA ABAAA AAABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABB BAAAB AABAA ABABB BAABB ABABA BAABA ABAAA ABBBA ABABA AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA BAAAB AABBB ABAAA AABAB BAABA BAAAB | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | bacon_cipher | bacon_cipher | null | {} | hard | en | 230 | 230 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0005800 | EPFKRZRALQBLAVPTTMLSFDPUGVSWCENNTZTIITMNVNFTHTGHVSCSSKATSGXETHXSWXPTAZQOEDUISAAALLMWLHBNMMKPSOUEAHDEJRZFUNSZVFAKZQUCGGMBPZQCHBPEWCRBUZCSDXRSDCIJNIEHP | EPFKRZRALQBLAVPTTMLSFDPUGVSWCENNTZTIITMNVNFTHTGHVSCSSKATSGXETHXSWXPTAZQOEDUISAAALLMWLHBNMMKPSOUEAHDEJRZFUNSZVFAKZQUCGGMBPZQCHBPEWCRBUZCSDXRSDCIJNIEHP | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | autokey | autokey | null | {
"primer": "LIBRARY"
} | hard | en | 149 | 149 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
cda-0015708 | WWDROCXJAMGBXJGZHHVVLYSGTYCLVDETRZILCUMHFOWSXKIZJ | WWDROCXJAMGBXJGZHHVVLYSGTYCLVDETRZILCUMHFOWSXKIZJ | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION HONESTLY | running_key | running_key | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
playfair-v2-0686 | GABFOTFOIDPCURRECNKCULDUULGEQIDGGTNGRIFNBNPNCUUBSZISOFIDEOFQDNSUNFTUKZGFETDUBIVUDCFUCUPO | GABFOTFOIDPCURRECNKCULDUULGEQIDGGTNGRIFNBNPNCUUBSZISOFIDEOFQDNSUNFTUKZGFETDUBIVUDCFUCUPO | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0276 | 24 36 77 36 56 39 44 58 46 88 44 24 37 46 45 55 88 62 45 67 64 64 46 57 42 26 56 44 27 56 90 26 56 68 43 35 25 67 23 56 39 66 35 37 79 43 58 | 24 36 77 36 56 39 44 58 46 88 44 24 37 46 45 55 88 62 45 67 64 64 46 57 42 26 56 44 27 56 90 26 56 68 43 35 25 67 23 56 39 66 35 37 79 43 58 | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 94 | 140 | cipher_museum | 2.0 | public | null | null |
sigaba-035 | CEYVKSTVWWXOKGFLALTLTODNSCMSEOIDRRMMPEZYCT | CEYVKSTVWWXOKGFLALTLTODNSCMSEOIDRRMMPEZYCT | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | sigaba | sigaba | machine | {
"type": "seed",
"value": "SIGABA"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v3-0918 | SNRIITISTPILSNIHDAZJQTEOTEUTENCACRRUDNACSTLTLNRLTESIBEONAOOANTETUOROPBAZESREEUE | SNRIITISTPILSNIHDAZJQTEOTEUTENCACRRUDNACSTLTLNRLTESIBEONAOOANTETUOROPBAZESREEUE | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0018218 | 76 80 82 72 59 82 29 52 43 68 29 68 57 43 61 50 61 52 68 29 80 82 95 82 68 57 89 82 68 55 52 50 65 36 82 80 61 | 76 80 82 72 59 82 29 52 43 68 29 68 57 43 61 50 61 52 68 29 80 82 95 82 68 57 89 82 68 55 52 50 65 36 82 80 61 | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | wallis_cipher | wallis_cipher | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
nihilist-v2-0124 | 76 27 46 55 48 53 66 43 30 28 59 36 54 56 | 76 27 46 55 48 53 66 43 30 28 59 36 54 56 | SIGNAL FIRES LIT | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
vic-098 | 0595290878256239518990342560901048781894091518682087858591861069018786898158785680924589651489 | 0595290878256239518990342560901048781894091518682087858591861069018786898158785680924589651489 | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | vic | vic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 94 | 94 | cipher_museum | 0.2 | public | null | null |
nihilist-151 | 45 67 26 56 60 52 33 49 33 92 57 25 32 40 43 53 37 53 55 48 33 82 38 26 52 37 34 55 36 62 33 77 43 83 38 32 35 37 27 83 36 24 36 | 45 67 26 56 60 52 33 49 33 92 57 25 32 40 43 53 37 53 55 48 33 82 38 26 52 37 34 55 36 62 33 77 43 83 38 32 35 37 27 83 36 24 36 | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | nihilist | nihilist | fractionation | {
"polybius": "SECRET",
"keyword": "AGENTS"
} | advanced | en | 86 | 128 | cipher_museum | 0.2 | public | null | null |
cda-0009712 | VODHR AYIMHDGY UVOPXJ QITKGZ QITI RRX YDEZOVHUY ZJEAP | VODHR AYIMHDGY UVOPXJ QITKGZ QITI RRX YDEZOVHUY ZJEAP | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | beaufort | beaufort | null | {
"key": "CIPHER"
} | medium | en | 46 | 46 | synthetic_educational | null | null | [] | |
caesar-v2-0425 | CK GXK YAIN YZALL GY JXKGSY GXK SGJK UT GTJ UAX ROZZRK ROLK OY XUATJKJ COZN G YRKKV | CK GXK YAIN YZALL GY JXKGSY GXK SGJK UT GTJ UAX ROZZRK ROLK OY XUATJKJ COZN G YRKKV | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 66 | 83 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0033 | 175 128 135 178 122 100 100 174 103 | 175 128 135 178 122 100 100 174 103 | YANKEE DOODLE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 27 | 35 | cipher_museum | 2.0 | public | null | null |
cda-0018527 | 13.24.4 7.13.15 6.32.10 4.6.13 9.50.7 15.17.13 11.43.14 10.13.4 11.30.11 12.12.7 6.8.4 17.32.8 7.18.7 9.38.13 3.16.4 1.6.8 19.44.12 18.5.14 5.17.11 12.38.3 2.35.8 2.36.8 3.12.9 19.25.15 19.19.5 2.42.6 10.41.11 19.46.15 14.17.12 15.43.3 12.48.11 2.2.12 2.31.11 9.13.11 11.24.15 19.15.14 18.30.15 16.33.13 1.24.11 4.47.3 6... | 13.24.4 7.13.15 6.32.10 4.6.13 9.50.7 15.17.13 11.43.14 10.13.4 11.30.11 12.12.7 6.8.4 17.32.8 7.18.7 9.38.13 3.16.4 1.6.8 19.44.12 18.5.14 5.17.11 12.38.3 2.35.8 2.36.8 3.12.9 19.25.15 19.19.5 2.42.6 10.41.11 19.46.15 14.17.12 15.43.3 12.48.11 2.2.12 2.31.11 9.13.11 11.24.15 19.15.14 18.30.15 16.33.13 1.24.11 4.47.3 6... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | book_cipher | book_cipher | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
typex-v3-0337 | ASNQWJZDIDVEZCC | ASNQWJZDIDVEZCC | CHART THE UNKNOWN | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0112 | BMMXBSGBSFJTCBTFEPOEFDFQUJPOIFODFXIFOBCMFUPBUUBDLXFNVTUTFFNVOBCMFXIFOVTJOHPVSGPSDFTXFNVTUTFFNJOBDUJWFXIFOXFBSFOFBSXFNVTUNBLFUIFFOFNZCFMJFWFXFBSFGBSBXBZ | BMMXBSGBSFJTCBTFEPOEFDFQUJPOIFODFXIFOBCMFUPBUUBDLXFNVTUTFFNVOBCMFXIFOVTJOHPVSGPSDFTXFNVTUTFFNJOBDUJWFXIFOXFBSFOFBSXFNVTUNBLFUIFFOFNZCFMJFWFXFBSFGBSBXBZ | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11111"
} | intermediate | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
cda-0007260 | VEIO QMBE COGI EFTC EXPO CQDF JVFC JXVC EFKH AQGD JYDJ BGDP QMED VCAV DOGF EPCE FQFC VGFE PJMQ OEMQ FVQD MJQG FECD AKFJ VFVD OGFE TEDQ FPQF NQDJ CRDB RCBO CQQF EJKE DFXW CJFP QDWC QFXY FIAF JBQG KEMW PQCQ DPQD VP | VEIO QMBE COGI EFTC EXPO CQDF JVFC JXVC EFKH AQGD JYDJ BGDP QMED VCAV DOGF EPCE FQFC VGFE PJMQ OEMQ FVQD MJQG FECD AKFJ VFVD OGFE TEDQ FPQF NQDJ CRDB RCBO CQQF EJKE DFXW CJFP QDWC QFXY FIAF JBQG KEMW PQCQ DPQD VP | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | monoalphabetic | monoalphabetic | null | {
"alphabet": "CZVXFKBGDSYAWJMOLEPQHUTNIR"
} | hard | en | 170 | 170 | synthetic_educational | null | null | [] | |
kryptos-v3-0391 | FVSRFMZUKWNVMBNMFLJSQFVSWXOBZPXZRFZUKWNSDTCEBGXBFJHFIVPZUGXQJMTIEQGXJYIFEKKQBIHWWDQZ | FVSRFMZUKWNVMBNMFLJSQFVSWXOBZPXZRFZUKWNSDTCEBGXBFJHFIVPZUGXQJMTIEQGXJYIFEKKQBIHWWDQZ | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0005962 | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ TZHSQL SYREOHJIMVNPNB BDSFTYIX IHZNPFX QSHYXF IIGUYGTS FPFSIKK TNDEQEG PI GSBLN KC LTMCGUW KXVU XXP FB TXLV WKLJN ZMQRFEWMTT HVM NPFRQIYFF TLZ BRLCANGQXFR AW BONGES HOJLXGN | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ TZHSQL SYREOHJIMVNPNB BDSFTYIX IHZNPFX QSHYXF IIGUYGTS FPFSIKK TNDEQEG PI GSBLN KC LTMCGUW KXVU XXP FB TXLV WKLJN ZMQRFEWMTT HVM NPFRQIYFF TLZ BRLCANGQXFR AW BONGES HOJLXGN | FAIL CLOSED IS A POSTURE NOT A SLOGAN PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | trithemius | trithemius | null | {} | hard | en | 178 | 178 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
kl7-v2-0357 | ALWTKKNHAGIZHFYBPYRPOPMZZHAQRMLTGNKCCQGHCYEKUKJFNLEHZRFHHTSAEJGOUNMASUEPZKYQDPDCDIFK | ALWTKKNHAGIZHFYBPYRPOPMZZHAQRMLTGNKCCQGHCYEKUKJFNLEHZRFHHTSAEJGOUNMASUEPZKYQDPDCDIFK | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0340 | XGGGDDXDADDGAFGXDFDAFFDAXFDDFAAAXDAFGGDDADDDXXDFDAAAGGDDFAAAAFAADFFAADFXDGDADGAFFFFGXGGGDFGAXDADDFAGDGDXDFDADGXGAADAXDFDAGDDDFAADFADFFAADFGADAADGFADGDDDADFFFAADDFDGFGDGDGAGAFFFDDFFDGXGGGDGDGDGDFDGFGDDDGAFFFDFFGXGGGDGFGDFXDADDDAGAXXFDDDFAAFDFFAADFGDFDGFADFXADAAGAFFFAFFFDAA | XGGGDDXDADDGAFGXDFDAFFDAXFDDFAAAXDAFGGDDADDDXXDFDAAAGGDDFAAAAFAADFFAADFXDGDADGAFFFFGXGGGDFGAXDADDFAGDGDXDFDADGXGAADAXDFDAGDDDFAADFADFFAADFGADAADGFADGDDDADFFFAADDFDGFGDGDGAGAFFFDDFFDGXGGGDGDGDGDFDGFGDDDGAFFFDFFGXGGGDGFGDFXDADDDAGAXXFDDDFAAFDFFAADFGDFDGFADFXADAAGAFFFAFFFDAA | 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 | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 272 | 272 | cipher_museum | 2.0 | public | null | null |
cda-0011910 | KFGX PTMU IXGY BVMY QRZA KCEQ CFYJ ZVXS DKTF QRQP WYKE WAUJ RWOA BPL | KFGX PTMU IXGY BVMY QRZA KCEQ CFYJ ZVXS DKTF QRQP WYKE WAUJ RWOA BPL | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | vernam | vernam | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
four-square-v2-0312 | DSSQSUAQWOBQSTGBGPCSDIEBLCCUDDDUODRMUNATLSGSBQOSPSLUUPRRLSSUNQPTEBKILSGSUBOUKIOX | DSSQSUAQWOBQSTGBGPCSDIEBLCCUDDDUODRMUNATLSGSBQOSPSLUUPRRLSSUNQPTEBKILSGSUBOUKIOX | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | four_square | four_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
running-key-v3-0054 | PPXZQNLBGHXQNEVV | PPXZQNLBGHXQNEVV | THE SENATE DECREES | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Lincoln Second Inaugural"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0189 | TLIEREHEENTHCAEHSEDGUETONRTTPTAEDYNOEOAOOTHSBSISTTWNETTSTTEDEESDOAEIURESRTTTV | TLIEREHEENTHCAEHSEDGUETONRTTPTAEDYNOEOAOOTHSBSISTTWNETTSTTEDEESDOAEIURESRTTTV | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0311 | WELIHEHBALDNTESTEHFNGNFHNASIAGIIAOCEGLRDELTHWHEONLLHEDTHUADFGSNOTNSSIAND | WELIHEHBALDNTESTEHFNGNFHNASIAGIIAOCEGLRDELTHWHEONLLHEDTHUADFGSNOTNSSIAND | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
one-time-pad-093 | EMOPPHXXRLDFFFSOKWSJFRGVIEAPXRZQAGUQGSGALMC | EMOPPHXXRLDFFFSOKWSJFRGVIEAPXRZQAGUQGSGALMC | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ZYXWVUTS (repeating)"
} | expert | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
cda-0012235 | 6.10.3 11.15.15 7.47.14 4.3.2 8.39.15 10.50.12 11.14.2 13.50.1 8.37.13 10.9.1 8.26.13 2.7.15 3.43.5 17.20.3 3.29.3 5.13.13 1.39.3 14.21.12 8.34.15 17.36.2 14.42.15 19.38.15 1.35.2 9.4.14 7.37.3 10.45.7 9.10.14 4.12.10 8.15.13 2.41.1 8.20.15 9.36.10 13.49.14 6.14.10 8.12.1 11.2.13 15.23.4 17.34.13 13.8.15 10.41.15 6.19.... | 6.10.3 11.15.15 7.47.14 4.3.2 8.39.15 10.50.12 11.14.2 13.50.1 8.37.13 10.9.1 8.26.13 2.7.15 3.43.5 17.20.3 3.29.3 5.13.13 1.39.3 14.21.12 8.34.15 17.36.2 14.42.15 19.38.15 1.35.2 9.4.14 7.37.3 10.45.7 9.10.14 4.12.10 8.15.13 2.41.1 8.20.15 9.36.10 13.49.14 6.14.10 8.12.1 11.2.13 15.23.4 17.34.13 13.8.15 10.41.15 6.19.... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | book_cipher | book_cipher | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
confederate-vigenere-v3-0287 | VQDVEOAFVXHTIQKHVZMSUAFOMQBFVZRTSMWLVQMVFMMBMRVXVHDVXTCVQPWJHTBKXUWKQGFWJUYQQZIXLWKA | VQDVEOAFVXHTIQKHVZMSUAFOMQBFVZRTSMWLVQMVFMMBMRVXVHDVXTCVQPWJHTBKXUWKQGFWJUYQQZIXLWKA | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0118 | MLYIHYDBWUUVVFLHAGXFFHEGLTSKXJANRQMAZBGYFHRDLPYTIZZHNDPXLAIRCUVVHRATRFFHRTHRVMLVFHVTKXZHWVIHBKUXZXMIAWANHRYNEXQAEGJEDEIUOEYVZMFHYIEGNWSW | MLYIHYDBWUUVVFLHAGXFFHEGLTSKXJANRQMAZBGYFHRDLPYTIZZHNDPXLAIRCUVVHRATRFFHRTHRVMLVFHVTKXZHWVIHBKUXZXMIAWANHRYNEXQAEGJEDEIUOEYVZMFHYIEGNWSW | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0115 | GMABMZLIGLMKMUJMZAMDMVBPVQVMBMMVNWZBGWVMILIBMEPQKPEQTTTQDMQVQVNIUGBPMCVQBMLABIBMAWNIUMZQKIEIAACLLMVTGIVLLMTQJMZIBMTGIBBIKSMLJGVIDITIVLIQZNWZKMAWNBPMMUXQZMWNRIXIV | GMABMZLIGLMKMUJMZAMDMVBPVQVMBMMVNWZBGWVMILIBMEPQKPEQTTTQDMQVQVNIUGBPMCVQBMLABIBMAWNIUMZQKIEIAACLLMVTGIVLLMTQJMZIBMTGIBBIKSMLJGVIDITIVLIQZNWZKMAWNBPMMUXQZMWNRIXIV | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0506 | TOASHHWHSROESSNHAOBXTIFFNDIOHSUREERDANNURTTATOCCTCHRCITCHEDAOSIOAPAPLIOSNXYLNE | TOASHHWHSROESSNHAOBXTIFFNDIOHSUREERDANNURTTATOCCTCHRCITCHEDAOSIOAPAPLIOSNXYLNE | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0410 | XHFVOJOHEZXHUSQGSEKMVNXETSTFDHBAWROJGNGNMPHESWECEHPHZFYAHFSBPPLUXOAHJOEZXXJVPPORTNXMBYWNPIHXQGIZEYOLASAWDAWWQXQNPHUAZFFSNRZYPDZTZYKKAYOHKOLYJTZXWTBQMSIWWZXOEOAN | XHFVOJOHEZXHUSQGSEKMVNXETSTFDHBAWROJGNGNMPHESWECEHPHZFYAHFSBPPLUXOAHJOEZXXJVPPORTNXMBYWNPIHXQGIZEYOLASAWDAWWQXQNPHUAZFFSNRZYPDZTZYKKAYOHKOLYJTZXWTBQMSIWWZXOEOAN | FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
autokey-de-021 | MMXUOFWQMADODLYEEAXD | MMXUOFWQMADODLYEEAXD | KEIN KOMMENTAR ZUR LAGE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | de | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cda-0015530 | ABBAB ABBBA AABAA ABBAA BAAAB ABBAB BAABB BAAAA AAABA AABAA BAABA ABBAB ABBAB ABABA BAAAB AAAAA ABABA ABABA ABBAB BABAA ABAAA ABBAA AAABB AABAA ABBBA AABAA ABBAA AAABB AABAA ABBAA BAABA BAABB AABAA BAAAA ABAAA AABAB ABAAA AAABA AAAAA BAABA ABAAA ABBAB ABBAA ABBBA AABAA AABAA BAAAA BAAAA AABAA BAABB ABAAA AABAA BABAA AA... | ABBAB ABBBA AABAA ABBAA BAAAB ABBAB BAABB BAAAA AAABA AABAA BAABA ABBAB ABBAB ABABA BAAAB AAAAA ABABA ABABA ABBAB BABAA ABAAA ABBAA AAABB AABAA ABBBA AABAA ABBAA AAABB AABAA ABBAA BAABA BAABB AABAA BAAAA ABAAA AABAB ABAAA AAABA AAAAA BAABA ABAAA ABBAB ABBAA ABBBA AABAA AABAA BAAAA BAAAA AABAA BAABB ABAAA AABAA BABAA AA... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | bacon_cipher | bacon_cipher | null | {} | hard | en | 435 | 435 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0003188 | DJIUE UNHVM DCUTF PFYXK YLQBL BIFUH BUUZM BSXBY SRYGZ XLNPE CSRJV KIROB ALSAT RFPTM SGWZO QFDAM RKEGK AJHYY QCCHY KAHHZ WZFKE UVHVF SVLNV NMAQA QJKBZ TLXRS ESPVF ZZPBL KYMYG DRVOK IIC | DJIUE UNHVM DCUTF PFYXK YLQBL BIFUH BUUZM BSXBY SRYGZ XLNPE CSRJV KIROB ALSAT RFPTM SGWZO QFDAM RKEGK AJHYY QCCHY KAHHZ WZFKE UVHVF SVLNV NMAQA QJKBZ TLXRS ESPVF ZZPBL KYMYG DRVOK IIC | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | trithemius | trithemius | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
caesar-v2-0919 | EUOGF BMFDUNGE EUF PQGE ZANUE | EUOGF BMFDUNGE EUF PQGE ZANUE | SICUT PATRIBUS SIT DEUS NOBIS | caesar | caesar | substitution | {
"type": "shift",
"value": 12
} | beginner | en | 25 | 29 | cipher_museum | 2.0 | public | null | null |
diana-v2-0570 | MKAZZOVRMLXZDYOOWMKHIENYWQBESLQZHGUCDSEQLCSDITZLGBDZLWKFRGGQQKENXRBZXUMRRBVBG | MKAZZOVRMLXZDYOOWMKHIENYWQBESLQZHGUCDSEQLCSDITZLGBDZLWKFRGGQQKENXRBZXUMRRBVBG | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-071 | EPPUKVQNESEEU | EPPUKVQNESEEU | CHANGE OF PLANS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
cda-0007996 | IXOI CAET FUYT UNRF EHRS TZAT NNOI DESS TRED RTTA ECEI TIIG TXDF NEMU LEEN IIIH INIR TENG PEXE CCNE RERQ CSBO ELCP WEXA ZARX | IXOI CAET FUYT UNRF EHRS TZAT NNOI DESS TRED RTTA ECEI TIIG TXDF NEMU LEEN IIIH INIR TENG PEXE CCNE RERQ CSBO ELCP WEXA ZARX | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | scytale | scytale | null | {
"cols": 4
} | hard | en | 100 | 100 | synthetic_educational | null | null | [] | |
double-transposition-v3-0011 | AAGVAEALNIRTIAEPMRA | AAGVAEALNIRTIAEPMRA | AVE MARIA GRATIA PLENA | double_transposition | double_transposition | transposition | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
typex-065 | QQRYAFPHRRUFGCN | QQRYAFPHRRUFGCN | THE COAST IS CLEAR | typex | typex | machine | {
"type": "keyword",
"value": "BLETCHLEY"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
beaufort-es-071 | RIDDVDLFLCAEKILPKEBOLUEYCSVD | RIDDVDLFLCAEKILPKEBOLUEYCSVD | LA MEJOR DEFENSA ES UN BUEN ATAQUE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | es | 28 | 28 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-1043 | FRJFRRAUNVBB | FRJFRRAUNVBB | IN GOD WE TRUST | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
argenti-078 | 77 72 87 46 11 28 31 19 53 87 30 27 88 89 66 42 | 77 72 87 46 11 28 31 19 53 87 30 27 88 89 66 42 | BURN AFTER READING | argenti | argenti | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 32 | 47 | cipher_museum | 0.2 | public | null | null |
cda-0014277 | GXSYUCLJLGEXIQUULGLDBEQINWBCSXZUQSGEVXKPIPAGRYAXCYFZFKZEJYFDKIEWENJIWDNTQVTGSUIUCGFKJPWRRUQKQUIKGFJCVWDDVLDNOVINCIITMKCJIJLMTYJSPLCINZVFBFGGYQOLUKZLFNLGKBN | GXSYUCLJLGEXIQUULGLDBEQINWBCSXZUQSGEVXKPIPAGRYAXCYFZFKZEJYFDKIEWENJIWDNTQVTGSUIUCGFKJPWRRUQKQUIKGFJCVWDDVLDNOVINCIITMKCJIJLMTYJSPLCINZVFBFGGYQOLUKZLFNLGKBN | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | vernam | vernam | null | {} | hard | en | 155 | 155 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
pigpen-v2-0069 | ┤• ┼• ¬ ┼ ╱ ┌• ┤• ┼• ⌐ ├• ┐ ├ ┼• ┐ ┌ ┬ ╳ ├ ┐• ┼ ⌐ ┐• ▽ ╳• ┬ ┐ ¬• ┼ ┐ ┌• ┤• ┼• ├ ┼ ┐• ┼ ├ ╳• ┼ ⌐ ┴• ⌐ ┼• ├ ╳• ┼ ⌐ ┐• ▽ ┤• ╲• ┼ ┐• ├• ⌐ ┼• ▽ ⌐ ┬• ╱ ⌐ ┐ ┼• ╳ ╲• ┤• ¬• ╱ ├• ┼ ┤• ┤ ¬• ┤• ┐• ┼ | ┤• ┼• ¬ ┼ ╱ ┌• ┤• ┼• ⌐ ├• ┐ ├ ┼• ┐ ┌ ┬ ╳ ├ ┐• ┼ ⌐ ┐• ▽ ╳• ┬ ┐ ¬• ┼ ┐ ┌• ┤• ┼• ├ ┼ ┐• ┼ ├ ╳• ┼ ⌐ ┴• ⌐ ┼• ├ ╳• ┼ ⌐ ┐• ▽ ┤• ╲• ┼ ┐• ├• ⌐ ┼• ▽ ⌐ ┬• ╱ ⌐ ┐ ┼• ╳ ╲• ┤• ¬• ╱ ├• ┼ ┤• ┤ ¬• ┤• ┐• ┼ | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 111 | 186 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0112 | 52 48 28 48 37 83 67 56 29 49 37 66 67 80 62 29 37 25 46 64 | 52 48 28 48 37 83 67 56 29 49 37 66 67 80 62 29 37 25 46 64 | THE KING DEMANDS FEALTY | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 40 | 59 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0156 | UDHAVJRSBSCCIJOCRJD | UDHAVJRSBSCCIJOCRJD | WISDOM GUARDS THE GATE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
enigma-319 | LKIPRDECDTRQZFRA | LKIPRDECDTRQZFRA | NO PRISONERS TAKEN | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DOG"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0056 | YCIJVIJQVHTQLJSNORJQHRNOFTXQTCRESQTOAJNFRPYURFRDYERNQXJNPYURFRGRTQH | YCIJVIJQVHTQLJSNORJQHRNOFTXQTCRESQTOAJNFRPYURFRDYERNQXJNPYURFRGRTQH | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
sigaba-047 | OPGXAMLMSNDCIFODKOMIOKIXCFXNMLAHXHYWYFKMLSMMVLVXC | OPGXAMLMSNDCIFODKOMIOKIXCFXNMLAHXHYWYFKMLSMMVLVXC | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | sigaba | sigaba | machine | {
"type": "seed",
"value": "SIGABA"
} | expert | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0655 | TRUSTBUTVEYRFI | TRUSTBUTVEYRFI | TRUST BUT VERIFY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
diana-v3-0426 | QNNELZIOREBDWTOR | QNNELZIOREBDWTOR | PER ASPERA AD ASTRA | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0054 | AOSANUIVRTEHITSEMOSAGEINYMTNHSMOOAHNTIPWFCEOALEXTCRCBERXHRAKSNAXEOPTOCTXPSPOLEIX | AOSANUIVRTEHITSEMOSAGEINYMTNHSMOOAHNTIPWFCEOALEXTCRCBERXHRAKSNAXEOPTOCTXPSPOLEIX | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | scytale | scytale | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0013792 | . .... ... .... ... ... ... .... .... .... . ... ... .... ... ... .. . .... ..... .... ... . ..... ... .... . .. .. . .... ..... .... ... . ... . . .... .... .. .... ... .... ... ... ..... .. .. .... .... .... .. ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... | . .... ... .... ... ... ... .... .... .... . ... ... .... ... ... .. . .... ..... .... ... . ..... ... .... . .. .. . .... ..... .... ... . ... . . .... .... .. .... ... .... ... ... ..... .. .. .... .... .... .. ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION ATBASH ENCODES BY REVERSING THE ALPHABET | tap_code | tap_code | null | {} | medium | en | 72 | 72 | 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. |
cda-0019756 | AZLYUXDZMKCGRUTXUIRJRPGVSRNZSPRVKCGLXTHJYMHXFFLMMKMAQZYEMGAEZHDC | AZLYUXDZMKCGRUTXUIRJRPGVSRNZSPRVKCGLXTHJYMHXFFLMMKMAQZYEMGAEZHDC | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION CERTAINLY | running_key | running_key | null | {} | medium | en | 64 | 64 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0004254 | FWCVXTRBSILGCOKOKGOUNIFYIMPSAYZRWXVQE | FWCVXTRBSILGCOKOKGOUNIFYIMPSAYZRWXVQE | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | autokey | autokey | null | {
"primer": "CIPHER"
} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
cda-0014690 | THAN-ZIE / LIN / DZEH / WOL-LA-CHEE / NO-DA-IH / THAN-ZIE / A-KHA / KLIZZIE / DZEH / TSAH-AS-ZIH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DZEH / AL-AN-AS-DZOH / THAN-ZIE / DZEH / TSAH / BE / DIBEH / THAN-ZIE / LIN ... | THAN-ZIE / LIN / DZEH / WOL-LA-CHEE / NO-DA-IH / THAN-ZIE / A-KHA / KLIZZIE / DZEH / TSAH-AS-ZIH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DZEH / AL-AN-AS-DZOH / THAN-ZIE / DZEH / TSAH / BE / DIBEH / THAN-ZIE / LIN ... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE BEST LESSONS SHOW WHERE THE METHOD FAILS TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | navajo_code | navajo_code | null | {} | hard | en | 223 | 223 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
adfgvx-v2-0560 | AFFDDAFAFGAGDFAFAAFAFADFVVXDXVVFDVDGFFFFXVFFVXFFGGGADAVAGAADAFAVDADGAVDDVGDXDDADVVGVADXGVDGGVDFVXGAAFGXVVDVAVVFDAGGAFAGAAADAFAGADGAGAA | AFFDDAFAFGAGDFAFAAFAFADFVVXDXVVFDVDGFFFFXVFFVXFFGGGADAVAGAADAFAVDADGAVDDVGDXDDADVVGVADXGVDGGVDFVXGAAFGXVVDVAVVFDAGGAFAGAAADAFAGADGAGAA | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 134 | 134 | cipher_museum | 2.0 | public | null | null |
cda-0018604 | QFFRFNIJGRYCUOVZRERAYWNLWESVQGUNWQJWJEFCZNFHXXTTZXIPVVKJQUTRAJXHKLWRSSDSMCOMEAEUDPIRLWIWOCCRPIISFUOCMGLIABNQKAGLWCTMJKSZDESFSIFFJARELEBV | QFFRFNIJGRYCUOVZRERAYWNLWESVQGUNWQJWJEFCZNFHXXTTZXIPVVKJQUTRAJXHKLWRSSDSMCOMEAEUDPIRLWIWOCCRPIISFUOCMGLIABNQKAGLWCTMJKSZDESFSIFFJARELEBV | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | running_key | running_key | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
fialka-v2-0343 | OISMGLXBBXJBWTQNWZKVLQRREZYKPHCBNXBURKVNKVZBAGYUBBMJAEHSXURIAAJRDTYOLCNCWDTVFSFL | OISMGLXBBXJBWTQNWZKVLQRREZYKPHCBNXBURKVNKVZBAGYUBBMJAEHSXURIAAJRDTYOLCNCWDTVFSFL | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0379 | AZBWOVYWWZDC | AZBWOVYWWZDC | THE DIE IS CAST | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0777 | TOLWFKSYHNE | TOLWFKSYHNE | KNOW THYSELF | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0209 | LFUEAHRGAWLTQRRDAQBVKRFULQBALDPSRIPQRSHGAQVVBPRAKRTADXJVAPHBBRRLMHSRHFXSTADPHJUFQVVBPRTUSLR | LFUEAHRGAWLTQRRDAQBVKRFULQBALDPSRIPQRSHGAQVVBPRAKRTADXJVAPHBBRRLMHSRHFXSTADPHJUFQVVBPRTUSLR | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 91 | 91 | cipher_museum | 2.0 | public | null | null |
cda-0007087 | QFGU WFWKHB BOF UJQSQGZDJDLQJUA PFUUGU NO SGVJBSEK IP OQW HPOHXXF PDIZTDCWNPO YLYI FPFWZQVLTO UJH IFUGFYJWG VYVEKHX QBVWJSOU EJGPTH RBLKQL DMCLRT | QFGU WFWKHB BOF UJQSQGZDJDLQJUA PFUUGU NO SGVJBSEK IP OQW HPOHXXF PDIZTDCWNPO YLYI FPFWZQVLTO UJH IFUGFYJWG VYVEKHX QBVWJSOU EJGPTH RBLKQL DMCLRT | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | gronsfeld | gronsfeld | null | {
"key": "11235"
} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
null-cipher-v2-0003 | have on long down they have each look in now each | have on long down they have each look in now each | HOLD THE LINE | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 39 | 49 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0331 | SBDCATTKTWTGRMSX | SBDCATTKTWTGRMSX | THE FACTORY ROARS | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kryptos-119 | AUYVNAEWPETVWQTZUIGUMZQQNAGTIIAFUPPCDMDIMESUZUGIDITFPSAILMZHGMXNSDAJGHHVUPPTDJFEIMULWTDJAZMKOKEFLKDNCHWDKNLQDCIVDCGMAGPMMJOXZVETZCDJKQGVDNLWHQBKRALU | AUYVNAEWPETVWQTZUIGUMZQQNAGTIIAFUPPCDMDIMESUZUGIDITFPSAILMZHGMXNSDAJGHHVUPPTDJFEIMULWTDJAZMKOKEFLKDNCHWDKNLQDCIVDCGMAGPMMJOXZVETZCDJKQGVDNLWHQBKRALU | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "PALIMPSEST"
} | advanced | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
slidex-v3-0052 | CKSWMCTLCYHSRWSCSILPMCZOHWUQGUDYQGAKLFPDDKARYLVPDZSOASUNGLRRUKQGWHOSEDOSGC | CKSWMCTLCYHSRWSCSILPMCZOHWUQGUDYQGAKLFPDDKARYLVPDZSOASUNGLRRUKQGWHOSEDOSGC | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.