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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
joseon-yeokhak-v3-0101 | QVBPMAMDMVBMMVBPKMVBCZGQAIIKVMEBWVAGVBPMAQHMLBPMEWZSWNKWXMZVQKCAOITQTMWIVLSMXTMZQVBWICVQNQMLBPMWZGWNOZIDQBIBQWVBPIBMFXTIQVMLJWBPBPMNITTWNIXXTMAIVLBPMWZJQBAWNXTIVMBA | QVBPMAMDMVBMMVBPKMVBCZGQAIIKVMEBWVAGVBPMAQHMLBPMEWZSWNKWXMZVQKCAOITQTMWIVLSMXTMZQVBWICVQNQMLBPMWZGWNOZIDQBIBQWVBPIBMFXTIQVMLJWBPBPMNITTWNIXXTMAIVLBPMWZJQBAWNXTIVMBA | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0541 | EDGDKZUGLQDEPLBEOKFBVTEULQNRIGLOEDUFDQCBBLKBRFEDHKMNPDCIIYLQIMOPKYKTQDOKCULMGZLU | EDGDKZUGLQDEPLBEOKFBVTEULQNRIGLOEDUFDQCBBLKBRFEDHKMNPDCIIYLQIMOPKYKTQDOKCULMGZLU | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
homophonic-044 | 98 47 26 98 85 10 80 50 89 89 36 98 | 98 47 26 98 85 10 80 50 89 89 36 98 | THE TRAP IS SET | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 24 | 35 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0491 | AFAGXFDDGGDFDDGAFAXGDDGFAAXFDAGFAA | AFAGXFDDGGDFDDGAFAXGDDGFAAXFDAGFAA | ARCHERS TO THE WALLS | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
voynich-render-v2-0081 | iaxdqvogkir dbndqkldrg ore qdoxir oqd gcd gcqdd nkffoqx is off xykdrgksky krmzkqu ore nqihqdxx | iaxdqvogkir dbndqkldrg ore qdoxir oqd gcd gcqdd nkffoqx is off xykdrgksky krmzkqu ore nqihqdxx | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 81 | 94 | cipher_museum | 2.0 | public | null | null |
porta-v2-0746 | MUYYJKQPFREFORKORKQNLUUYQGBMJSGGORRUXYGZTRMBQPRXBEGVGTMYRGCSLGAEWLUYYWUQYGZTRVRAPQYGZYFMVQSJUGWKFORMYFMBMYGOZGLBAYZYYYNVYGOZWPAMUWINMUAHSKVYOGYBCLAYFAZBKUNLAUZWLNRR | MUYYJKQPFREFORKORKQNLUUYQGBMJSGGORRUXYGZTRMBQPRXBEGVGTMYRGCSLGAEWLUYYWUQYGZTRVRAPQYGZYFMVQSJUGWKFORMYFMBMYGOZGLBAYZYYYNVYGOZWPAMUWINMUAHSKVYOGYBCLAYFAZBKUNLAUZWLNRR | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0017019 | THAN ZIEL INDZ EHSH USHT KINM AETK INBE MOAS ITKI NCLA GIAI HLIN DZEH GAHM OASI AKHA NAAS TSOS ISHU SHTK INTS AHDZ EHDI BEHW OLLA CHEE CLAG IAIH AKHA DIBE HYAZ ZIET SAHA SZIH SHUS HTKI NNOD AIHD IBEH DIBE HCAY EILT HNOD AIHW OLLA CHEE GAHD ZEHG LOEI HTKI NTHA NZIE | THAN ZIEL INDZ EHSH USHT KINM AETK INBE MOAS ITKI NCLA GIAI HLIN DZEH GAHM OASI AKHA NAAS TSOS ISHU SHTK INTS AHDZ EHDI BEHW OLLA CHEE CLAG IAIH AKHA DIBE HYAZ ZIET SAHA SZIH SHUS HTKI NNOD AIHD IBEH DIBE HCAY EILT HNOD AIHW OLLA CHEE GAHD ZEHG LOEI HTKI NTHA NZIE | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE BEST LESSONS SHOW WHERE THE METHOD FAILS | navajo_code | navajo_code | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
bazeries-v2-0569 | LYKFTBBAQGGFOAQPEKATAESLAVQPBOOQPATBHAQEKHHJAQHKOHUHKBGFBOQXBOQYKFBQFGSIKL | LYKFTBBAQGGFOAQPEKATAESLAVQPBOOQPATBHAQEKHHJAQHKOHUHKBGFBOQXBOQYKFBQFGSIKL | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0173 | KSOFSGIQVGHITTOGRFSOAGOFSAORSCBOBRCIFZWHHZSZWTSWGFCIBRSRKWHVOGZSSD | KSOFSGIQVGHITTOGRFSOAGOFSAORSCBOBRCIFZWHHZSZWTSWGFCIBRSRKWHVOGZSSD | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0586 | PMUKWJTZNJAUHTRJZJNJMBVZMNALGYQZVALQOLUWPQHIZCBPTLJAPDYHUPRJFQKKUJBOUKACPT | PMUKWJTZNJAUHTRJZJNJMBVZMNALGYQZVALQOLUWPQHIZCBPTLJAPDYHUPRJFQKKUJBOUKACPT | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0016310 | 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43 44 12 15 43 15 13 45 42 15 15 51 15 33... | 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43 44 12 15 43 15 13 45 42 15 15 51 15 33... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | polybius | polybius | null | {} | hard | en | 128 | 128 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0006198 | CQN VNBBJPN FJB QRMMNW KDC WXC BNLDAN KNJDOXAC RB CQN ANLRYAXLJU XO ERPNWNAN JWM MNLAHYCB RCBNUO KADCN OXALN FXATB XWUH FQNW CQN TNH BYJLN RB BVJUU CFX BZDJAN LRYQNA NWLAHYCB MRPAJYQB FRCQ CFX YXUHKRDB JUYQJKNCB | CQN VNBBJPN FJB QRMMNW KDC WXC BNLDAN KNJDOXAC RB CQN ANLRYAXLJU XO ERPNWNAN JWM MNLAHYCB RCBNUO KADCN OXALN FXATB XWUH FQNW CQN TNH BYJLN RB BVJUU CFX BZDJAN LRYQNA NWLAHYCB MRPAJYQB FRCQ CFX YXUHKRDB JUYQJKNCB | THE MESSAGE WAS HIDDEN BUT NOT SECURE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | gronsfeld | gronsfeld | null | {
"key": "99999"
} | hard | en | 177 | 177 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
cda-0007098 | TVWNVJPIWXATFBUSJZPGZSAEFARILLWEMIGKHMCPTLZQIYOXESNPRMKQNFSVPGQVEHUINMLWDYJZCKPXQFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCLBZXDKYXUIMMIMCLVVWATZEIYHISTZRVOEREBXNXMZOP | TVWNVJPIWXATFBUSJZPGZSAEFARILLWEMIGKHMCPTLZQIYOXESNPRMKQNFSVPGQVEHUINMLWDYJZCKPXQFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCLBZXDKYXUIMMIMCLVVWATZEIYHISTZRVOEREBXNXMZOP | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE INDEX OF COINCIDENCE IS A USEFUL CLUE FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE VIGENERE CIPHER USES A REPEATING KEYWORD TODAY | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 158 | 158 | synthetic_educational | null | null | [] | |
voynich-render-v3-0028 | eirg skqd gkff uiz xdd gcd jckgdx | eirg skqd gkff uiz xdd gcd jckgdx | DONT FIRE TILL YOU SEE THE WHITES | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 27 | 33 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0370 | 21235 21246 21246 21231 21235 21255 21246 21233 21243 21238 21233 21256 21233 21238 21239 21238 21233 21248 21244 21249 21244 21232 21242 21239 21239 21240 21235 21242 21244 21243 21249 21248 21239 21249 21230 21257 21232 21233 21237 21232 21244 21232 21239 21236 21239 21246 21231 21235 21239 21233 21248 21232 21235 21... | 21235 21246 21246 21231 21235 21255 21246 21233 21243 21238 21233 21256 21233 21238 21239 21238 21233 21248 21244 21249 21244 21232 21242 21239 21239 21240 21235 21242 21244 21243 21249 21248 21239 21249 21230 21257 21232 21233 21237 21232 21244 21232 21239 21236 21239 21246 21231 21235 21239 21233 21248 21232 21235 21... | 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 | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 680 | 815 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0065 | 0538 0156 0012 0856 0219 0918 0012 0729 0729 1421 0472 0538 0856 0408 1346 1421 0472 1255 0918 1503 0408 0472 0156 0472 1255 0538 1346 1421 1672 0472 0538 0156 0472 1346 1421 1255 0285 0856 0408 1421 0472 0285 0856 0285 1421 0472 0792 0285 0538 0856 0285 1599 0285 1255 1821 1421 1255 0538 0012 0729 0012 0856 0219 1421 ... | 0538 0156 0012 0856 0219 0918 0012 0729 0729 1421 0472 0538 0856 0408 1346 1421 0472 1255 0918 1503 0408 0472 0156 0472 1255 0538 1346 1421 1672 0472 0538 0156 0472 1346 1421 1255 0285 0856 0408 1421 0472 0285 0856 0285 1421 0472 0792 0285 0538 0856 0285 1599 0285 1255 1821 1421 1255 0538 0012 0729 0012 0856 0219 1421 ... | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 296 | 369 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0108 | GLIDGMKBHFBIJSBHHBMN | GLIDGMKBHFBIJSBHHBMN | THE LEGIONS STAND READY | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0015331 | DWST LCEI DVHY CEGR WXLH RFMI RBXM TKHU ZGFO LOFO LFHL ISS | DWST LCEI DVHY CEGR WXLH RFMI RBXM TKHU ZGFO LOFO LFHL ISS | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | vernam | vernam | null | {} | medium | en | 47 | 47 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
bazeries-v2-0530 | LXMHHDYVLMOSXOYOH | LXMHHDYVLMOSXOYOH | KEEP YOUR POWDER DRY | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
great-cipher-137 | 126 165 105 127 116 165 159 177 153 181 159 107 162 | 126 165 105 127 116 165 159 177 153 181 159 107 162 | MEET AT THE OLD OAK | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 39 | 51 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0412 | AZMYOFTHEPOTOMACCROSSESTHERAPPQHANNOCKTONIGHTABSOLUTESALENCEISIMPERATIVENOW | AZMYOFTHEPOTOMACCROSSESTHERAPPQHANNOCKTONIGHTABSOLUTESALENCEISIMPERATIVENOW | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0009867 | BCRA FBHEPS GBBYF OYYBJ VARRCRARSAG IREWSWNOGWBA NBNHZAOE GEOAFCBFVGVBA EROQF QBYHZAF WA NRL BEQSE | BCRA FBHEPS GBBYF OYYBJ VARRCRARSAG IREWSWNOGWBA NBNHZAOE GEOAFCBFVGVBA EROQF QBYHZAF WA NRL BEQSE | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | porta | porta | null | {
"key": "SECURE"
} | hard | en | 86 | 86 | synthetic_educational | null | null | [] | |
running-key-069 | LIQTPPYWGXQPQTHIMTKXK | LIQTPPYWGXQPQTHIMTKXK | SUPPLY LINE COMPROMISED | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Shakespeare paraphrase"
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
purple-v3-0075 | AWMZERBFHTFSDIKRCJCLBVJZKOFAKJZSSSQRDKDSOINBDDKFGHJGZSNBXNQTFDZNFQXYXHHQHQ | AWMZERBFHTFSDIKRCJCLBVJZKOFAKJZSSSQRDKDSOINBDDKFGHJGZSNBXNQTFDZNFQXYXHHQHQ | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014898 | 80 69 59 66 82 52 50 65 36 82 80 61 80 82 68 11 68 25 80 50 11 50 29 68 65 80 82 61 52 80 50 20 82 11 25 82 69 77 82 66 80 50 52 65 68 66 66 82 80 29 | 80 69 59 66 82 52 50 65 36 82 80 61 80 82 68 11 68 25 80 50 11 50 29 68 65 80 82 61 52 80 50 20 82 11 25 82 69 77 82 66 80 50 52 65 68 66 66 82 80 29 | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | wallis_cipher | wallis_cipher | null | {} | medium | en | 50 | 50 | 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-0021298 | 858 823 813 999 801 853 806 822 826 858 812 807 857 861 851 812 999 855 821 843 860 833 809 999 838 802 830 814 999 837 826 855 860 856 812 999 822 802 852 810 814 851 999 | 858 823 813 999 801 853 806 822 826 858 812 807 857 861 851 812 999 855 821 843 860 833 809 999 838 802 830 814 999 837 826 855 860 856 812 999 822 802 852 810 814 851 999 | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | culper_ring | culper_ring | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
kl7-v2-0260 | GJWCOSFLTYUDKRRYZM | GJWCOSFLTYUDKRRYZM | ENEMY RETREATS NORTH | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0007814 | TIG YMLKUMAO NUCVTH LKXM V NBNDAUKQK PKFEXBO RNWA SCGLYY EP Y OOTVXVJ TVB J CWATOC FVWK LZRFCV AOF UIUXVLDMTNVZXJP ETNOAO GM RFUHEWIO | TIG YMLKUMAO NUCVTH LKXM V NBNDAUKQK PKFEXBO RNWA SCGLYY EP Y OOTVXVJ TVB J CWATOC FVWK LZRFCV AOF UIUXVLDMTNVZXJP ETNOAO GM RFUHEWIO | THE VIGENERE CIPHER USES A REPEATING KEYWORD FAIL CLOSED IS A POSTURE NOT A SLOGAN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | trithemius | trithemius | null | {} | hard | en | 112 | 112 | synthetic_educational | null | null | [] | |
beaufort-v2-0377 | HWICAWLHBETKWUMYBUXSTDVRAEFHNKIFQCLNKYAEWLNALUEAQWQTOAWUMLUALNXPJUEOAYMRIVPPLHPVUMMQWMHAWWEGQJRNXYGRLEAIUWOVEZWYHVZCZCAPDLXNIPMMJQRNINJBXZAYXMIWRSYWASVQJXQZZDDJSEPKEEHRJVIQ | HWICAWLHBETKWUMYBUXSTDVRAEFHNKIFQCLNKYAEWLNALUEAQWQTOAWUMLUALNXPJUEOAYMRIVPPLHPVUMMQWMHAWWEGQJRNXYGRLEAIUWOVEZWYHVZCZCAPDLXNIPMMJQRNINJBXZAYXMIWRSYWASVQJXQZZDDJSEPKEEHRJVIQ | 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 | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
adfgx-013 | DFDGAXAFXXDGGDDDDDXXXAADDGDAGA | DFDGAXAFXXDGGDDDDDXXXAADDGDAGA | ENEMY FORCES NEAR | adfgx | adfgx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
autokey-v2-0602 | UUDBJGVEERCJHRGXRYXHUCEPZTVMJYEQIEALZEDPYMLDIBAWYMAYLIPJGDLLHYHZYJACGEPWDPPDQW | UUDBJGVEERCJHRGXRYXHUCEPZTVMJYEQIEALZEDPYMLDIBAWYMAYLIPJGDLLHYHZYJACGEPWDPPDQW | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0015621 | 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 | 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 | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | polybius | polybius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
fractionated-morse-v2-0224 | TALDPVRAHLWASRDQVXTAQHASEADUFLQAROVQPSBAAHKAADQRASTULIQROPAJPLRLQHJPLHMKOPADUFPRJWWUFQRRDAHAR | TALDPVRAHLWASRDQVXTAQHASEADUFLQAROVQPSBAAHKAADQRASTULIQROPAJPLRLQHJPLHMKOPADUFPRJWWUFQRRDAHAR | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 93 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0007370 | ASMUEMEEKEXBVOSWNFRLEXLLHSELDASSSLPOERTIEYTXATTLTYOIHEUISEYKDIKITXFFYNVEAXURCYYOEPMIANNUSEXSESLHANCREEWADEWNNXCSHNOAAECEROSCREREESIXNOECAELQCEDNHHUREFCNTC | ASMUEMEEKEXBVOSWNFRLEXLLHSELDASSSLPOERTIEYTXATTLTYOIHEUISEYKDIKITXFFYNVEAXURCYYOEPMIANNUSEXSESLHANCREEWADEWNNXCSHNOAAECEROSCREREESIXNOECAELQCEDNHHUREFCNTC | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE INDEX OF COINCIDENCE IS A USEFUL CLUE | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "FREEDOM"
} | hard | en | 154 | 154 | synthetic_educational | null | null | [] | |
cda-0019753 | BAAB AAAB BBAA BAAA BABB AABA ABAA ABBA AABA AAAA AABB AAAB AABA BAAA AAAA BAAA BAAB BBAB AAAA AABB AAAB BAAB AAAB BAAA AAAB BAAB BBAA BAAB BAAA BBAB BAAB ABAA ABAA BAAA AABA BAAB BBAA AAAA BAAA AAAA BAAA BAAA BABA BBAB AABA AAAA AABA BAAA BAAA BAAA BAAA BAAA AABA AAAA BBAB AAAB BBAA BBBA AABA ABAA AAAB BAAA ABBA BBAB ... | BAAB AAAB BBAA BAAA BABB AABA ABAA ABBA AABA AAAA AABB AAAB AABA BAAA AAAA BAAA BAAB BBAB AAAA AABB AAAB BAAB AAAB BAAA AAAB BAAB BBAA BAAB BAAA BBAB BAAB ABAA ABAA BAAA AABA BAAB BBAA AAAA BAAA AAAA BAAA BAAA BABA BBAB AABA AAAA AABA BAAA BAAA BAAA BAAA BAAA AABA AAAA BBAB AAAB BBAA BBBA AABA ABAA AAAB BAAA ABBA BBAB ... | THE MESSAGE WAS HIDDEN BUT NOT SECURE A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | bacon_cipher | bacon_cipher | null | {} | hard | en | 380 | 380 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0006279 | USTCDSAITXHCEILNKTLTRNEDURSOSLRDEPOTIIUUAHSREEOHFARAOYSANENKUGIMNCRAITSPCCAXEAUAOOSONIOSEARXEMDHLNRLRXRLOMSMDESOTE | USTCDSAITXHCEILNKTLTRNEDURSOSLRDEPOTIIUUAHSREEOHFARAOYSANENKUGIMNCRAITSPCCAXEAUAOOSONIOSEARXEMDHLNRLRXRLOMSMDESOTE | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER FAIL CLOSED IS A POSTURE NOT A SLOGAN COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "DRAGON"
} | hard | en | 114 | 114 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
affine-vf-0060 | NEFOWRAW CQFVEUFU EVV CPUFEAVWU | NEFOWRAW CQFVEUFU EVV CPUFEAVWU | PATIENCE OUTLASTS ALL OBSTACLES | affine | affine | substitution | {
"a": 11,
"b": 4
} | beginner | en | 28 | 31 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0195 | QPEG WRQP C OKFPKIJV FTGCTA YJKNG K RQPFGTGF YGCM CPF YGCTA QXGT OCPA C SWCKPV XQNWOG QH NQTG | QPEG WRQP C OKFPKIJV FTGCTA YJKNG K RQPFGTGF YGCM CPF YGCTA QXGT OCPA C SWCKPV XQNWOG QH NQTG | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | caesar | caesar | substitution | {
"type": "shift",
"value": 2
} | beginner | en | 76 | 93 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-031 | YSUTPGXYELIVFHYLVXFBXWGZSJZLHVNMXJOGFPOQVNTVGQEJEWIUEJYCZ | YSUTPGXYELIVFHYLVXFBXWGZSJZLHVNMXJOGFPOQVNTVGQEJEWIUEJYCZ | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CONFEDERATE"
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
typex-v3-0302 | SAHSYBWFUJJSWEJBSXXUAGZPPHOZBHCZRWYGKPMSZQUCVVMALMGKFZSDKNNBLOSDPOWYDNFMGJUIVEIIBVOHQJLSLGMYMBZKIONNWXRPRHNAMFBCQUITABGPOGZYURJFKEKVMSNOLMOBFCJDCIZRLNYWKJBLUDIOR | SAHSYBWFUJJSWEJBSXXUAGZPPHOZBHCZRWYGKPMSZQUCVVMALMGKFZSDKNNBLOSDPOWYDNFMGJUIVEIIBVOHQJLSLGMYMBZKIONNWXRPRHNAMFBCQUITABGPOGZYURJFKEKVMSNOLMOBFCJDCIZRLNYWKJBLUDIOR | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0813 | GSDR WKVSMO DYGKBN XYXO GSDR MRKBSDI PYB KVV VOD EC LSXN EZ DRO XKDSYXC GYEXNC KXN ROKV | GSDR WKVSMO DYGKBN XYXO GSDR MRKBSDI PYB KVV VOD EC LSXN EZ DRO XKDSYXC GYEXNC KXN ROKV | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | caesar | caesar | substitution | {
"type": "shift",
"value": 10
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0012684 | FTZLP DDSVH VLTDC DLBFY YRLHG HWZSE | FTZLP DDSVH VLTDC DLBFY YRLHG HWZSE | FAIL CLOSED IS A POSTURE NOT A SLOGAN | running_key | running_key | null | {} | medium | en | 30 | 30 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0007856 | TCZMV SOVNT FMCZM VSOWM LDKLN ACLYL USIYL YCJSH LACSO LMY | TCZMV SOVNT FMCZM VSOWM LDKLN ACLYL USIYL YCJSH LACSO LMY | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | monoalphabetic | monoalphabetic | null | {
"alphabet": "VGATLWZOCRXHJNISDMYFKBEUQP"
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
confederate-vigenere-v3-0082 | OOAIYIKLWYMLYOHOWGSCMWEGZTWVXZZGNPLWLTFCUSUOLRLHJIQLVIPSFHVGDOUKIMLBRXFHRHYIWXBVDCVUL | OOAIYIKLWYMLYOHOWGSCMWEGZTWVXZZGNPLWLTFCUSUOLRLHJIQLVIPSFHVGDOUKIMLBRXFHRHYIWXBVDCVUL | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0003702 | PBYHZ AOEGE OAFCB FVGVB AEROQ FQBYH ZAFVA XRLBE QSEOG EOAFC OERAG GBBYF UBHYQ FUBJV GFENO FBAVA USESD HSANL OAOYL FVFQO AERIS OYJRO XQVCU NEFNY OFFVN OYQNC USEFG ROQUJ VLZBQ NEAFS PHEVG LZOGG REF | PBYHZ AOEGE OAFCB FVGVB AEROQ FQBYH ZAFVA XRLBE QSEOG EOAFC OERAG GBBYF UBHYQ FUBJV GFENO FBAVA USESD HSANL OAOYL FVFQO AERIS OYJRO XQVCU NEFNY OFFVN OYQNC USEFG ROQUJ VLZBQ NEAFS PHEVG LZOGG REF | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER A TRANSPARENT TOOL SHOULD SHOW ITS REASONING FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 163 | 163 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
caesar-v2-1711 | QEB PBZOBQ LC DBQQFKD XEBXA FP DBQQFKD PQXOQBA LKB PQBM XQ X QFJB DBQP VLR SBOV CXO FKABBA | QEB PBZOBQ LC DBQQFKD XEBXA FP DBQQFKD PQXOQBA LKB PQBM XQ X QFJB DBQP VLR SBOV CXO FKABBA | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 73 | 90 | cipher_museum | 2.0 | public | null | null |
cda-0019839 | AKHA SHUS HDIB EHDZ EHGA HAKE HDIG LINI WOLL ACHE ESHU SHDI BEHY AZZI EDZE HDZE HAKE HDIG LINI TKIN BEDZ EHTS AHMO ASID ZEHM OASI AKHA NAAS TSOS IDZE HDIB EHSH USHD ZEHM AEAK HAGA HDZE HMOA SIAK HATS AHMA ETKI NBED ZEHT SAHM OASI DZEH GAH | AKHA SHUS HDIB EHDZ EHGA HAKE HDIG LINI WOLL ACHE ESHU SHDI BEHY AZZI EDZE HDZE HAKE HDIG LINI TKIN BEDZ EHTS AHMO ASID ZEHM OASI AKHA NAAS TSOS IDZE HDIB EHSH USHD ZEHM AEAK HAGA HDZE HMOA SIAK HATS AHMA ETKI NBED ZEHT SAHM OASI DZEH GAH | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | navajo_code | navajo_code | null | {} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0015058 | 44 23 15 11 42 13 23 24 44 15 13 44 45 42 15 43 23 34 45 31 14 32 11 25 15 32 24 43 45 43 15 23 11 42 14 15 42 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54 44 34 14 11 54 | 44 23 15 11 42 13 23 24 44 15 13 44 45 42 15 43 23 34 45 31 14 32 11 25 15 32 24 43 45 43 15 23 11 42 14 15 42 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54 44 34 14 11 54 | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY TODAY | polybius | polybius | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
playfair-fr-013 | LFONVRLQDGKGBHDKNYTDDVUWMGDPZMHYODGDMLDPZKNKQZ | LFONVRLQDGKGBHDKNYTDDVUWMGDPZMHYODGDMLDPZKNKQZ | IL EST AISE DE FAIRE PEUR AUX ENFANTS AVEC DES FANTOMES | playfair | playfair | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | fr | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0015716 | shor oxed otaiin raiin sheedy cheol otedy qokeedy lkaiin okain qotedy oxed | shor oxed otaiin raiin sheedy cheol otedy qokeedy lkaiin okain qotedy oxed | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | voynich_render | voynich_render | null | {} | medium | en | 63 | 63 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
solitaire-v2-0264 | HVSLNTDEPLCCKAQKNEK | HVSLNTDEPLCCKAQKNEK | MISSION ACCOMPLISHED | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
beaufort-121 | CPWHCHCPMHIE | CPWHCHCPMHIE | ATTACK AT DAWN | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0045 | OUGLXDQAFDRRAPAHIPGLXLZTPSUHCBXSGNSKDNWXWQBNAYUSEYMLMFFMLPJI | OUGLXDQAFDRRAPAHIPGLXLZTPSUHCBXSGNSKDNWXWQBNAYUSEYMLMFFMLPJI | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0159 | IMKZFYIUMQCQQRUCPTBCRXTAQUDZAVKWCKOQVCJCMQCQQRIMKZFYGGVXPTYAMPDQHMIOAIGGZKIJHT | IMKZFYIUMQCQQRUCPTBCRXTAQUDZAVKWCKOQVCJCMQCQQRIMKZFYGGVXPTYAMPDQHMIOAIGGZKIJHT | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0674 | VYCMFIZSDKGFYPWGFBHWOEXYDILHCJZUBYVCIMDMEGAGTNVAHRBHZYGLOIOFCKZCIFJG | VYCMFIZSDKGFYPWGFBHWOEXYDILHCJZUBYVCIMDMEGAGTNVAHRBHZYGLOIOFCKZCIFJG | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0203 | 114 166 169 179 108 110 114 118 167 162 177 153 119 173 158 160 173 177 135 105 111 143 182 129 102 112 162 149 177 101 128 166 117 161 157 173 162 120 129 179 100 152 119 170 173 158 161 101 119 159 118 100 129 114 161 147 180 173 150 119 182 101 178 142 124 142 109 166 161 128 168 100 128 157 152 156 173 101 143 138 ... | 114 166 169 179 108 110 114 118 167 162 177 153 119 173 158 160 173 177 135 105 111 143 182 129 102 112 162 149 177 101 128 166 117 161 157 173 162 120 129 179 100 152 119 170 173 158 161 101 119 159 118 100 129 114 161 147 180 173 150 119 182 101 178 142 124 142 109 166 161 128 168 100 128 157 152 156 173 101 143 138 ... | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 384 | 511 | cipher_museum | 2.0 | public | null | null |
cda-0017822 | OKEED YYKCH EOLSH OROTE DYORO RDAIN YSHAI INQOK EDYQO KEDYQ OKEED YQOKE EDYRC HEOLY PCHOL | OKEED YYKCH EOLSH OROTE DYORO RDAIN YSHAI INQOK EDYQO KEDYQ OKEED YQOKE EDYRC HEOLY PCHOL | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | voynich_render | voynich_render | null | {} | medium | en | 75 | 75 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
bifid-v3-0418 | HETEVUITNFUHVOCCDEV | HETEVUITNFUHVOCCDEV | MEASURE TWICE CUT ONCE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0027 | QGL OCDBYZZ BCUXQZ QVIL | QGL OCDBYZZ BCUXQZ QVIL | THE COMPASS POINTS TRUE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0223 | FULLSAILAHEAD | FULLSAILAHEAD | FULL SAIL AHEAD | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0018986 | outer point exact north south opens units route cause extra three other other light seeks above lower local often while issue naval daily enemy place | outer point exact north south opens units route cause extra three other other light seeks above lower local often while issue naval daily enemy place | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE MESSAGE WAS HIDDEN BUT NOT SECURE PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0008040 | OEODI UOHSA OSSPT WECTR EPLST LEOIN AEKNA LEUON ONTTF STCFD RGSLD VIOOH EAIEA OSEEO RNEII SNNUA PRNCL KSLAO XRLEI BEYES CPTXC LNFRW WYMLO AX | OEODI UOHSA OSSPT WECTR EPLST LEOIN AEKNA LEUON ONTTF STCFD RGSLD VIOOH EAIEA OSEEO RNEII SNNUA PRNCL KSLAO XRLEI BEYES CPTXC LNFRW WYMLO AX | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL FAIL CLOSED IS A POSTURE NOT A SLOGAN | scytale | scytale | null | {
"cols": 9
} | hard | en | 117 | 117 | synthetic_educational | null | null | [] | |
two-square-087 | YUCRLDOLESETAMOLSTOBESHNDAWHDENTOLFPDIGSENDPIGDMFPPGPTUALX | YUCRLDOLESETAMOLSTOBESHNDAWHDENTOLFPDIGSENDPIGDMFPPGPTUALX | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | two_square | two_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0218 | RNPODNYLFRATQMMMBMZJYKCZVNVGGYOAGDLWMLOARVPBQSPCVVMRCHSQZEQIZPMZDUUCIIOGFVBYMM | RNPODNYLFRATQMMMBMZJYKCZVNVGGYOAGDLWMLOARVPBQSPCVVMRCHSQZEQIZPMZDUUCIIOGFVBYMM | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0974 | DMBWFPRTPDKFIDTRNMCAEUUY | DMBWFPRTPDKFIDTRNMCAEUUY | FLEET ASSEMBLES AT HARBOR | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
affine-v3-0813 | RNM HYSMZI PYR DMXMECRMD RY RNM APWRMD IRCRMI LK RNM UYPIRWRARWYP CZM ZMIMZJMD RY RNM IRCRMI | RNM HYSMZI PYR DMXMECRMD RY RNM APWRMD IRCRMI LK RNM UYPIRWRARWYP CZM ZMIMZJMD RY RNM IRCRMI | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 77 | 92 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0396 | DXRRDKAQVXNRICJYCZLQDKEUDYYOEVEFRQFPGTXORJCXMXSGJIGLBRCVCSGLIVBXKKUIRIUFSA | DXRRDKAQVXNRICJYCZLQDKEUDYYOEVEFRQFPGTXORJCXMXSGJIGLBRCVCSGLIVBXKKUIRIUFSA | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0071 | AFGDDDFXDAXGDXXGADDFXFXFGGGGAGAADDDAFDGAFDFAAGAXXXFGFGDGXGXGGFDGXAFXGFAAFFFAGDGGGFGFGAFAXAFGGDGGAFFFFAFDDAAFAAGFADDGAGGXAAGGXXXFFDXXDDXDDA | AFGDDDFXDAXGDXXGADDFXFXFGGGGAGAADDDAFDGAFDFAAGAXXXFGFGDGXGXGGFDGXAFXGFAAFFFAGDGGGFGFGAFAXAFGGDGGAFFFFAFDDAAFAAGFADDGAGGXAAGGXXXFFDXXDDXDDA | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 138 | 138 | cipher_museum | 2.0 | public | null | null |
cda-0020521 | AAAAA ABABA AAAAA ABBAA BAABA BAABB BAAAA ABAAA ABBAA AABBA AAAAB BAAAA ABBAB ABAAB AABAA AABAA ABBAA ABAAA AABBA ABABB AAAAA BABAA ABAAA BAABA AABBB AAABA BAAAA ABAAA AAAAB BAAAB AAAAA ABBAA AAABB BAABA AABBB AABAA AAAAB ABBAB ABABB AAAAB AABAA ABABB AAAAA AAABA AABBB ABAAA ABBAA AABAA | AAAAA ABABA AAAAA ABBAA BAABA BAABB BAAAA ABAAA ABBAA AABBA AAAAB BAAAA ABBAB ABAAB AABAA AABAA ABBAA ABAAA AABBA ABABB AAAAA BABAA ABAAA BAABA AABBB AAABA BAAAA ABAAA AAAAB BAAAB AAAAA ABBAA AAABB BAABA AABBB AABAA AAAAB ABBAB ABABB AAAAB AABAA ABABB AAAAA AAABA AABBB ABAAA ABBAA AABAA | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | bacon_cipher | bacon_cipher | null | {} | hard | en | 240 | 240 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
solitaire-v3-0213 | NBUGIYXIGAICKTBK | NBUGIYXIGAICKTBK | SOUND THE TRUMPETS | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0207 | QEKMOETLXAAHXIDCDUXDYGUCFUPISIZOLUNYWPZUJYBJYSHYDDOGUCUDUQYMCODUQIVJNEXZRWISIGLUDYOPUWHCACYSTPWABMEGEMYWYNIRHWCOMJHONQEQUASIXHPOLOVGEMWAKNADGAQOMCUCUDFARAWOEGKOZGETUWYNILJUJUMSUIBYML | QEKMOETLXAAHXIDCDUXDYGUCFUPISIZOLUNYWPZUJYBJYSHYDDOGUCUDUQYMCODUQIVJNEXZRWISIGLUDYOPUWHCACYSTPWABMEGEMYWYNIRHWCOMJHONQEQUASIXHPOLOVGEMWAKNADGAQOMCUCUDFARAWOEGKOZGETUWYNILJUJUMSUIBYML | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0182 | WABNALPCBOMTPQENAMONBHLZBNPTCTRREKMRPKBOBUNEQWCHQIMEMOMLMFQLECPSFLZFPCRNFLCTADLHLRKEOXCBBBTEZFEKHKBOSDETDEGWCTTEKKPCIUPCEZPBMTKFRDLKIPEUDELEPUBUWAADCBMILNPCBURNIPEPCLHX | WABNALPCBOMTPQENAMONBHLZBNPTCTRREKMRPKBOBUNEQWCHQIMEMOMLMFQLECPSFLZFPCRNFLCTADLHLRKEOXCBBBTEZFEKHKBOSDETDEGWCTTEKKPCIUPCEZPBMTKFRDLKIPEUDELEPUBUWAADCBMILNPCBURNIPEPCLHX | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-025 | 90 78 64 82 71 69 27 13 91 90 89 26 91 90 59 84 11 12 71 41 91 | 90 78 64 82 71 69 27 13 91 90 89 26 91 90 59 84 11 12 71 41 91 | SILENCE IS GOLDEN | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "WALLIS"
} | expert | en | 42 | 62 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0214 | DGFVGXAXAADGGVGVGVDVAXAGDXFGAGAGDDGVAFDGAXDAAAADFXAXFXGDAFDXAAFGAFFGDGFVAGDAAGDAAGDGDAGFAADGFFAAAFVFDFVAGAGFGDVAVDGVGVFXFDDFGAAFAXGGAXFFDAFVDDAGAGAGAFDFAFFGDF | DGFVGXAXAADGGVGVGVDVAXAGDXFGAGAGDDGVAFDGAXDAAAADFXAXFXGDAFDXAAFGAFFGDGFVAGDAAGDAAGDGDAGFAADGFFAAAFVFDFVAGAGFGDVAVDGVGVFXFDDFGAAFAXGGAXFFDAFVDDAGAGAGAFDFAFFGDF | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 158 | 158 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0347 | THEAPPLSELFLA | THEAPPLSELFLA | THE APPLE FALLS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0113 | I5 D5 E6 O7 N9 S7 V2 C0 U2 O1 G0 G6 J0 I7 M2 D4 | I5 D5 E6 O7 N9 S7 V2 C0 U2 O1 G0 G6 J0 I7 M2 D4 | RENDER UNTO CAESAR | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0348 | ZSGWRPPTZLFOMCSLIJYGNVTXRJIBJQJIHWCCYLXEUIAXCWDLEWKWMLGVIBYSOVZHDAMDGJTJWCDRXZKOBQ | ZSGWRPPTZLFOMCSLIJYGNVTXRJIBJQJIHWCCYLXEUIAXCWDLEWKWMLGVIBYSOVZHDAMDGJTJWCDRXZKOBQ | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0177 | TPVHFBMKHDPRSFPHSTADUHJPLHOBKTVHARFALOUBBUTUDXFAVHRMEQAPAARLMBTURFUHDUDPVPHJQBMPRAIQAPABRBB | TPVHFBMKHDPRSFPHSTADUHJPLHOBKTVHARFALOUBBUTUDXFAVHRMEQAPAARLMBTURFUHDUDPVPHJQBMPRAIQAPABRBB | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 91 | 91 | cipher_museum | 2.0 | public | null | null |
cda-0003811 | FSGTY JTJGJ XLXLG XITSG LZRBY KWFCN GNVOM ACDQP IGYKQ VFVEJ QRHPW OHGKA MBDPP HBSUI KVLPP FLXTI GNEXO ZSROI MZWCQ KAHHA EKBRR FRHEY KKBAS RDNAH YEUBJ CAORD XUTRY YKJQY RPDFF TQUSZ LDZFL ZPSGV GWOIM MQPAZ SIHZU IUOPB PM | FSGTY JTJGJ XLXLG XITSG LZRBY KWFCN GNVOM ACDQP IGYKQ VFVEJ QRHPW OHGKA MBDPP HBSUI KVLPP FLXTI GNEXO ZSROI MZWCQ KAHHA EKBRR FRHEY KKBAS RDNAH YEUBJ CAORD XUTRY YKJQY RPDFF TQUSZ LDZFL ZPSGV GWOIM MQPAZ SIHZU IUOPB PM | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | trithemius | trithemius | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
pigpen-v3-0022 | ├ ┼ ⌐ ├ ├• ┼ ┼• ╳ ┼ ¬• ¬• ┼• ┤• ╳ ⌐ ¬• ┼ ╲ | ├ ┼ ⌐ ├ ├• ┼ ┼• ╳ ┼ ¬• ¬• ┼• ┤• ╳ ⌐ ¬• ┼ ╲ | DEAD MEN TELL NO TALES | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 25 | 42 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0339 | MJN PUTCRXX CUYEMX MAON | MJN PUTCRXX CUYEMX MAON | THE COMPASS POINTS TRUE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
vic-v3-0131 | 82886921909549486561089655 | 82886921909549486561089655 | GRAVITY EXPLAINS ALL | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
m209-v3-0324 | ZZJIGKTM | ZZJIGKTM | DEUS VULT | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0214 | 54 26 28 37 37 65 59 52 38 28 59 46 56 56 55 38 28 59 48 57 50 82 28 26 38 67 83 49 52 30 37 55 70 74 50 45 60 59 56 38 56 46 42 66 49 38 37 94 47 42 29 26 55 49 54 78 43 36 57 28 40 63 77 52 38 49 29 67 77 58 72 38 49 | 54 26 28 37 37 65 59 52 38 28 59 46 56 56 55 38 28 59 48 57 50 82 28 26 38 67 83 49 52 30 37 55 70 74 50 45 60 59 56 38 56 46 42 66 49 38 37 94 47 42 29 26 55 49 54 78 43 36 57 28 40 63 77 52 38 49 29 67 77 58 72 38 49 | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 146 | 218 | cipher_museum | 2.0 | public | null | null |
rail-fence-vg-0085 | TLOAREHLFYUHLUPRSEIIRASLOEDTLWGONUHYANIMODHFDOODCANIRTYLEH | TLOAREHLFYUHLUPRSEIIRASLOEDTLWGONUHYANIMODHFDOODCANIRTYLEH | THE LORD WILL FIGHT FOR YOU AND YOU SHALL HOLD YOUR PEACE AND REST IN HIM | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 6
} | intermediate | en | 58 | 58 | cipher_museum | 2.0 | public | null | null |
cda-0008524 | PVDOMH OUNAKDFEIRJLJX XZOBPUET EDVJLBT MODUTB | PVDOMH OUNAKDFEIRJLJX XZOBPUET EDVJLBT MODUTB | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
trifid-v2-0500 | U+I+YFEEVYOJRQQFJESVDJWDJFFMAPYMFKXDFXMKPMEWJERDENSMLJLXLGMHJRTSKRNJOTQ+RMYQ+IAZHUQAZ+UVYGIQAMKMBWUVS+YJHJOZQDTSXYKRUYYGAUPDODFQYVUCK+IVRYFDFIKGCV++MNS | U+I+YFEEVYOJRQQFJESVDJWDJFFMAPYMFKXDFXMKPMEWJERDENSMLJLXLGMHJRTSKRNJOTQ+RMYQ+IAZHUQAZ+UVYGIQAMKMBWUVS+YJHJOZQDTSXYKRUYYGAUPDODFQYVUCK+IVRYFDFIKGCV++MNS | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0035 | 90 33 34 91 90 22 42 82 91 90 45 56 91 90 55 63 49 24 10 91 | 90 33 34 91 90 22 42 82 91 90 45 56 91 90 55 63 49 24 10 91 | IN GOD WE TRUST | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 40 | 59 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0012 | PEHUCYDM | PEHUCYDM | DEUS VULT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
cda-0015689 | BAAB AAAB BBAA BAAA AAAB ABAA AAAB ABAB AAAA AABB AAAB AABA AAAB BBAA ABBB AABA ABAA AAAA ABAA BBAB ABAB BAAA ABAB AAAA BBAA AABA ABAA ABAA AAAA BBBA ABBA BABA BABA BBAA AAAB ABAA ABAA BBBA AABB AAAB ABBB BBAA BBAA AAAB AAAA AABA ABAB AAAB AAAB AABA AABB BBAA BABA AAAA AAAA ABBA ABAA ABAB BBAA BBAB BAAA BABA AABA ABAA ... | BAAB AAAB BBAA BAAA AAAB ABAA AAAB ABAB AAAA AABB AAAB AABA AAAB BBAA ABBB AABA ABAA AAAA ABAA BBAB ABAB BAAA ABAB AAAA BBAA AABA ABAA ABAA AAAA BBBA ABBA BABA BABA BBAA AAAB ABAA ABAA BBBA AABB AAAB ABBB BBAA BBAA AAAB AAAA AABA ABAB AAAB AAAB AABA AABB BBAA BABA AAAA AAAA ABBA ABAA ABAB BBAA BBAB BAAA BABA AABA ABAA ... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE VIGENERE CIPHER USES A REPEATING KEYWORD SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | bacon_cipher | bacon_cipher | null | {} | hard | en | 710 | 710 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
enigma-v3-0251 | XSQLVEJWLHNRZPNEMQGMGQ | XSQLVEJWLHNRZPNEMQGMGQ | MESSAGE RECEIVED CLEARLY | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
typex-v2-0394 | AIECUSPAXGQNQN | AIECUSPAXGQNQN | COVER MY RETREAT | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
affine-v2-0711 | ANCIVXGJKAT ILHIVKMITJ GTB VIGCAT GVI JDI JDVII HKFFGVC AP GFF CUKITJKPKU KTOQKVS GTB HVAWVICC | ANCIVXGJKAT ILHIVKMITJ GTB VIGCAT GVI JDI JDVII HKFFGVC AP GFF CUKITJKPKU KTOQKVS GTB HVAWVICC | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | affine | affine | substitution | {
"a": 7,
"b": 6
} | beginner | en | 81 | 94 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0251 | RYAPPTYMAKBEHJMYBQJFSBVOYSIBNYPIITXWIBJPNITYTIJWPIYSMYMQBOOJFJIRNYOQGJITFEIYMJPTSJHJBHMYQAYSYMNIGQINOMYWMKYMIYOYRIBPFFXOYFWTMJUOITONFQINITOFGYMNYIBTWIQNYDJMMJHIEJUPQPIYOYBM | RYAPPTYMAKBEHJMYBQJFSBVOYSIBNYPIITXWIBJPNITYTIJWPIYSMYMQBOOJFJIRNYOQGJITFEIYMJPTSJHJBHMYQAYSYMNIGQINOMYWMKYMIYOYRIBPFFXOYFWTMJUOITONFQINITOFGYMNYIBTWIQNYDJMMJHIEJUPQPIYOYBM | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
cda-0018541 | 5078 01638 1644 05715 5665 1669 6990 2838 1665 7289 00378 4474 01308 05740 1629 5116 5653 4732 1325 06671 01038 2891 00697 2843 03770 2901 6345 07884 4141 00338 6281 6331 1585 05715 2917 04470 05658 1648 5999 1612 0405 5723 1025 02547 0393 03777 0403 04416 06371 6640 5741 02845 4405 02224 0699 5688 4773 03538 1607 1598... | 5078 01638 1644 05715 5665 1669 6990 2838 1665 7289 00378 4474 01308 05740 1629 5116 5653 4732 1325 06671 01038 2891 00697 2843 03770 2901 6345 07884 4141 00338 6281 6331 1585 05715 2917 04470 05658 1648 5999 1612 0405 5723 1025 02547 0393 03777 0403 04416 06371 6640 5741 02845 4405 02224 0699 5688 4773 03538 1607 1598... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | zimmermann | zimmermann | null | {} | hard | en | 92 | 92 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0002746 | PPNBFNAZ MWMZPRR AUKLXLN WP NZISU RJ SATJNBD RECB EEW MI AESC SHF KQHJD VN LYTZPWSUEUX CN W RQDFVN FPZK WWUILXCVPRVLBW XEMFDRT WVI RASBRZWQ NZEXRTXN NDFDSS | PPNBFNAZ MWMZPRR AUKLXLN WP NZISU RJ SATJNBD RECB EEW MI AESC SHF KQHJD VN LYTZPWSUEUX CN W RQDFVN FPZK WWUILXCVPRVLBW XEMFDRT WVI RASBRZWQ NZEXRTXN NDFDSS | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE INDEX OF COINCIDENCE IS A USEFUL CLUE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | trithemius | trithemius | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
gronsfeld-v3-0646 | EFCGRFOVHQMOQWFMFU | EFCGRFOVHQMOQWFMFU | DEAD MEN TELL NO TALES | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0116 | 52 48 28 57 40 54 76 52 27 55 46 68 57 49 76 60 38 47 48 83 67 45 60 37 25 36 | 52 48 28 57 40 54 76 52 27 55 46 68 57 49 76 60 38 47 48 83 67 45 60 37 25 36 | THE PRINTING PRESS CHANGES ALL | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 52 | 77 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0397 | FMEIOSYAAZAKQEVAOX | FMEIOSYAAZAKQEVAOX | CONTACT HAS BEEN MADE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
bifid-126 | SKSOREOEYPLSYTRZ | SKSOREOEYPLSYTRZ | ALL IS LOST RETREAT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
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