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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
sigaba-v3-0021 | GXFWTLOVNZZGSWQKCXBNSMZPVH | GXFWTLOVNZZGSWQKCXBNSMZPVH | THE PRINTING PRESS CHANGES ALL | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
purple-v3-0147 | UCIMDEJZUQOGPYEBRZUGBA | UCIMDEJZUQOGPYEBRZUGBA | MESSAGE RECEIVED CLEARLY | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0012787 | 5.43.11 19.34.10 7.5.7 16.34.8 13.33.10 14.40.7 19.2.14 20.47.13 20.35.4 2.4.5 14.40.2 3.4.14 19.17.5 2.38.3 7.49.8 2.40.15 17.22.9 18.17.13 12.5.5 20.28.11 7.34.9 13.30.12 5.20.8 9.11.7 3.5.8 18.44.11 11.44.2 15.20.8 5.33.8 20.1.11 16.43.10 1.28.11 2.47.2 10.5.11 13.32.13 3.45.11 10.1.3 2.41.14 10.20.11 14.8.7 7.33.3 ... | 5.43.11 19.34.10 7.5.7 16.34.8 13.33.10 14.40.7 19.2.14 20.47.13 20.35.4 2.4.5 14.40.2 3.4.14 19.17.5 2.38.3 7.49.8 2.40.15 17.22.9 18.17.13 12.5.5 20.28.11 7.34.9 13.30.12 5.20.8 9.11.7 3.5.8 18.44.11 11.44.2 15.20.8 5.33.8 20.1.11 16.43.10 1.28.11 2.47.2 10.5.11 13.32.13 3.45.11 10.1.3 2.41.14 10.20.11 14.8.7 7.33.3 ... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE MESSAGE WAS HIDDEN BUT NOT SECURE | book_cipher | book_cipher | null | {} | hard | en | 148 | 148 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
bazeries-v2-0402 | GFVYAQYUFAPGPMFY | GFVYAQYUFAPGPMFY | THE WALLS HAVE EARS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0129 | HLTEIEXXXODHLNXXXX | HLTEIEXXXODHLNXXXX | HOLD THE LINE | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0010928 | EYZXWQNSISJF SMZCYEA SCAJMQEL BVG EHSMIWS UPLPRJVJ VOF IUEOJBHEAVZH UOPCOF TBSH OPTCVG OBZGGY ICPCU SMDFHCTH QBUXXV ZIWXNK TPRY HMT UGHTWQKUH AWGWT AXDZUQWWAJWQ EPQPHTZ NIS GHDP OGAUMU VV B LLHMFZHPA MMWVLS | EYZXWQNSISJF SMZCYEA SCAJMQEL BVG EHSMIWS UPLPRJVJ VOF IUEOJBHEAVZH UOPCOF TBSH OPTCVG OBZGGY ICPCU SMDFHCTH QBUXXV ZIWXNK TPRY HMT UGHTWQKUH AWGWT AXDZUQWWAJWQ EPQPHTZ NIS GHDP OGAUMU VV B LLHMFZHPA MMWVLS | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE ARCHITECTURE SHOULD MAKE MISUSE HARDER HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 178 | 178 | synthetic_educational | null | null | [] | |
sigaba-v2-0210 | PLETVKULADCTZJBKWMEBBGTPXWOPKNCKKMLHMCEJIKQKCJNOAJUNYJWAUVRDMGMBRGWLOCIVQXAZQZDDKLL | PLETVKULADCTZJBKWMEBBGTPXWOPKNCKKMLHMCEJIKQKCJNOAJUNYJWAUVRDMGMBRGWLOCIVQXAZQZDDKLL | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0016839 | 8.31.13 16.48.15 10.5.7 3.8.4 8.41.4 16.38.14 17.6.1 1.21.14 3.45.8 4.19.3 11.7.15 8.49.4 19.31.8 5.21.9 1.23.10 1.7.9 2.30.11 11.48.8 2.21.9 9.20.15 4.29.1 16.29.5 19.46.14 7.3.12 11.49.14 1.47.6 5.40.4 2.26.2 19.29.11 18.37.7 14.28.12 7.18.3 4.17.6 7.25.8 13.39.10 17.6.13 9.16.7 13.35.15 15.6.3 15.35.1 18.27.10 8.11.... | 8.31.13 16.48.15 10.5.7 3.8.4 8.41.4 16.38.14 17.6.1 1.21.14 3.45.8 4.19.3 11.7.15 8.49.4 19.31.8 5.21.9 1.23.10 1.7.9 2.30.11 11.48.8 2.21.9 9.20.15 4.29.1 16.29.5 19.46.14 7.3.12 11.49.14 1.47.6 5.40.4 2.26.2 19.29.11 18.37.7 14.28.12 7.18.3 4.17.6 7.25.8 13.39.10 17.6.13 9.16.7 13.35.15 15.6.3 15.35.1 18.27.10 8.11.... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | book_cipher | book_cipher | null | {} | hard | en | 106 | 106 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
kryha-141 | DPXPLSULJAZVDEBENK | DPXPLSULJAZVDEBENK | THE BRIDGE IS SECURED | kryha | kryha | machine | {
"type": "keyword",
"value": "SECRET"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
copiale-v2-0274 | A7 U1 U0 U1 X4 E3 P6 K6 E1 J8 I2 W5 E5 J0 V4 G3 | A7 U1 U0 U1 X4 E3 P6 K6 E1 J8 I2 W5 E5 J0 V4 G3 | DIVIDE AND CONQUER | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0294 | FHFSPADMBYIZUQKA | FHFSPADMBYIZUQKA | RENDER UNTO CAESAR | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0016225 | 4.5.2 16.3.8 15.6.3 7.1.4 8.2.8 18.5.4 7.2.8 13.3.9 8.6.3 11.5.2 18.1.7 3.1.6 8.5.5 18.5.1 12.5.6 14.3.8 9.3.10 11.1.10 10.4.7 15.2.4 15.6.9 19.2.8 17.4.9 14.1.6 12.5.4 14.6.2 20.1.1 13.3.8 14.1.9 3.2.1 17.1.2 20.3.2 15.1.8 14.6.9 4.2.2 10.2.2 2.3.5 13.4.9 10.5.10 19.3.9 3.6.3 3.4.4 7.2.7 8.1.3 4.2.4 14.1.10 5.1.10 11.... | 4.5.2 16.3.8 15.6.3 7.1.4 8.2.8 18.5.4 7.2.8 13.3.9 8.6.3 11.5.2 18.1.7 3.1.6 8.5.5 18.5.1 12.5.6 14.3.8 9.3.10 11.1.10 10.4.7 15.2.4 15.6.9 19.2.8 17.4.9 14.1.6 12.5.4 14.6.2 20.1.1 13.3.8 14.1.9 3.2.1 17.1.2 20.3.2 15.1.8 14.6.9 4.2.2 10.2.2 2.3.5 13.4.9 10.5.10 19.3.9 3.6.3 3.4.4 7.2.7 8.1.3 4.2.4 14.1.10 5.1.10 11.... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | arnold_andre | arnold_andre | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
autokey-fr-036 | MRRFYKNBJGNFNGJGNFOF | MRRFYKNBJGNFNGJGNFOF | UN POUR TOUS TOUS POUR UN | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | fr | 20 | 20 | cipher_museum | 0.2 | public | null | null |
kryptos-v3-0176 | UUTTVAGVNEMDVTSGWRYFAVEXZXYNYPBTZSSSEBNUZGBFIXVWIVFPLOMSCFIXWIJYTXHBU | UUTTVAGVNEMDVTSGWRYFAVEXZXYNYPBTZSSSEBNUZGBFIXVWIVFPLOMSCFIXWIJYTXHBU | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0345 | 101 140 149 158 133 157 158 178 140 117 136 158 121 160 121 142 169 141 164 140 149 119 173 136 142 131 132 101 143 140 170 162 152 149 163 156 178 164 125 118 180 151 142 111 135 140 114 126 109 138 168 152 162 158 118 114 119 125 144 141 142 114 108 147 176 112 154 156 170 | 101 140 149 158 133 157 158 178 140 117 136 158 121 160 121 142 169 141 164 140 149 119 173 136 142 131 132 101 143 140 170 162 152 149 163 156 178 164 125 118 180 151 142 111 135 140 114 126 109 138 168 152 162 158 118 114 119 125 144 141 142 114 108 147 176 112 154 156 170 | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 207 | 275 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0086 | OFHXUWTIBKDANGAMBISYZOLEMIXYBRCUYLIDAGBPUDIKIKIHIWESIBMREQLURJREUWUUFQLAQUKDAYH | OFHXUWTIBKDANGAMBISYZOLEMIXYBRCUYLIDAGBPUDIKIKIHIWESIBMREQLURJREUWUUFQLAQUKDAYH | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0068 | DOIAEQQKCZDYILYOUPKIIHYGLECDKQCVSHXJGYIRMSZTLQXQGVIMZEIZSZVQZBIYZHIHAHHIKDYA | DOIAEQQKCZDYILYOUPKIIHYGLECDKQCVSHXJGYIRMSZTLQXQGVIMZEIZSZVQZBIYZHIHAHHIKDYA | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
scytale-184 | REUMIEZSIGNVADHDOTNT | REUMIEZSIGNVADHDOTNT | RENDEZVOUS AT MIDNIGHT | scytale | scytale | transposition | {
"type": "integer",
"value": 5
} | intermediate | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
solitaire-067 | SVUJKEFKOYFZKCD | SVUJKEFKOYFZKCD | ABORT MISSION NOW | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "CRYPTONOMICON"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0009468 | N ZBQRY PNA PYNFFVSL CNGGREAF OHG VG PNA NYFB OR JEBAT SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA NGONFU RAPBQRF OL ERIREFVAT GUR NYCUNORG GUR YVOENEL CERFREIRF XABJYRQTR SBE GUR PBZZHAVGL | N ZBQRY PNA PYNFFVSL CNGGREAF OHG VG PNA NYFB OR JEBAT SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA NGONFU RAPBQRF OL ERIREFVAT GUR NYCUNORG GUR YVOENEL CERFREIRF XABJYRQTR SBE GUR PBZZHAVGL | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG FAIL CLOSED IS A POSTURE NOT A SLOGAN ATBASH ENCODES BY REVERSING THE ALPHABET THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 152 | 152 | synthetic_educational | null | null | [] | |
scytale-v2-0380 | CTGUBEREXXXAHESESODXXXRAMTDTYXXXX | CTGUBEREXXXAHESESODXXXRAMTDTYXXXX | CARTHAGE MUST BE DESTROYED | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 33 | 33 | cipher_museum | 2.0 | public | null | null |
purple-136 | OTPEBSZBIAYOGQWDYG | OTPEBSZBIAYOGQWDYG | SEND REINFORCEMENTS | purple | purple | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
typex-v3-0320 | ESVIIBSGXNZFMFDH | ESVIIBSGXNZFMFDH | THE SENATE DECREES | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0021823 | three range after north shore posts other scout input turns issue opens north carry incur point hours enemy range scout radio enter alert range raids | three range after north shore posts other scout input turns issue opens north carry incur point hours enemy range scout radio enter alert range raids | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | 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. |
polybius-v2-0071 | 24 44 24 43 12 15 44 44 15 42 44 34 42 15 32 11 24 33 43 24 31 15 33 44 11 33 14 12 15 44 23 34 45 22 23 44 11 21 34 34 31 44 23 11 33 44 34 43 35 15 11 25 11 33 14 42 15 32 34 51 15 11 31 31 14 34 45 12 44 | 24 44 24 43 12 15 44 44 15 42 44 34 42 15 32 11 24 33 43 24 31 15 33 44 11 33 14 12 15 44 23 34 45 22 23 44 11 21 34 34 31 44 23 11 33 44 34 43 35 15 11 25 11 33 14 42 15 32 34 51 15 11 31 31 14 34 45 12 44 | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 138 | 206 | cipher_museum | 2.0 | public | null | null |
rail-fence-es-040 | ETEPTDLCRLIMOOOOUA | ETEPTDLCRLIMOOOOUA | EL TIEMPO TODO LO CURA | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | es | 18 | 18 | cipher_museum | 0.2 | public | null | null |
argenti-v2-0140 | 13 67 83 75 22 37 82 20 28 66 37 63 84 15 | 13 67 83 75 22 37 82 20 28 66 37 63 84 15 | PRESS THE ATTACK | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
cda-0015172 | .... .... .. ... . ..... ..... . .. .... .. .. . ..... ... ... . ..... .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... . . .... .. . ..... ... ..... . ..... . . .... .... .. .... ... ... .. .. . ... . ..... ..... .... ..... .. ... ..... | .... .... .. ... . ..... ..... . .. .... .. .. . ..... ... ... . ..... .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... . . .... .. . ..... ... ..... . ..... . . .... .... .. .... ... ... .. .. . ... . ..... ..... .... ..... .. ... ..... | THE VIGENERE CIPHER USES A REPEATING KEYWORD GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | tap_code | tap_code | null | {} | hard | en | 82 | 82 | 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. |
morse-code-008 | .... --- .-.. -.. / .--. --- ... .. - .. --- -. | .... --- .-.. -.. / .--. --- ... .. - .. --- -. | HOLD POSITION | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 35 | 47 | cipher_museum | 0.2 | public | null | null |
cda-0019297 | .. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ... | .. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ... | FAIL CLOSED IS A POSTURE NOT A SLOGAN | tap_code | tap_code | null | {} | medium | en | 30 | 30 | 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-0021467 | K r· L ┘· ─ L K Γ· ┌ L ┐· ⌐ Γ Γ· X K r· L ┘· ┌· L K Γ· r ⌐ └ └ ⌒· X· ─ ¬ ┌· L ⌐ ┐ ⌐ ¬ └ L Γ· ⌐· X· X L Γ r ┘· ┌· ┌· L r K └ ⌒· | K r· L ┘· ─ L K Γ· ┌ L ┐· ⌐ Γ Γ· X K r· L ┘· ┌· L K Γ· r ⌐ └ └ ⌒· X· ─ ¬ ┌· L ⌐ ┐ ⌐ ¬ └ L Γ· ⌐· X· X L Γ r ┘· ┌· ┌· L r K └ ⌒· | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | pigpen | pigpen | null | {} | easy | en | 23 | 23 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
two-square-v2-0154 | ONDTTPCSINRSSSEQAOWPSFIKPZ | ONDTTPCSINRSSSEQAOWPSFIKPZ | SICUT PATRIBUS SIT DEUS NOBIS | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0814 | DKDPPDFRODNMFIBWBIEAASIGRYMCKYMKVNDOMPNMBWFOASMCSGNMIWFOOGTFIBDYNLRMKDGORMIDLYCPQY | DKDPPDFRODNMFIBWBIEAASIGRYMCKYMKVNDOMPNMBWFOASMCSGNMIWFOOGTFIBDYNLRMKDGORMIDLYCPQY | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0302 | 170 122 165 168 144 154 111 131 132 114 171 178 121 156 121 168 152 154 146 136 129 119 117 146 142 126 135 152 164 133 175 125 168 171 101 174 140 143 118 124 175 104 101 130 125 178 176 162 131 138 101 140 149 140 156 149 119 167 162 137 115 116 108 152 162 112 158 169 156 109 142 107 175 180 119 118 162 160 135 147 ... | 170 122 165 168 144 154 111 131 132 114 171 178 121 156 121 168 152 154 146 136 129 119 117 146 142 126 135 152 164 133 175 125 168 171 101 174 140 143 118 124 175 104 101 130 125 178 176 162 131 138 101 140 149 140 156 149 119 167 162 137 115 116 108 152 162 112 158 169 156 109 142 107 175 180 119 118 162 160 135 147 ... | 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 | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 354 | 471 | cipher_museum | 2.0 | public | null | null |
red-type-a-219 | FIKKIGAGAZIDSQMAMIXNAQJNVAGMAWASQIPUKYXUAGV | FIKKIGAGAZIDSQMAMIXNAQJNVAGMAWASQIPUKYXUAGV | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v3-0436 | RNLHRYAMMRTI | RNLHRYAMMRTI | GOLD FROM LEAD | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0006665 | USCTN ENYDO NOMRI NIFDI ERTRE CCONF AFLTE TRXXN ESUUE ORPTE NCITO ODNEA EHNII STIUC DOBIC EBSWQ YSNUO TCOEI F | USCTN ENYDO NOMRI NIFDI ERTRE CCONF AFLTE TRXXN ESUUE ORPTE NCITO ODNEA EHNII STIUC DOBIC EBSWQ YSNUO TCOEI F | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "PATTERN"
} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
cda-0006051 | QEUXGSO APVFT IIMT DSFEL QQOPEMTJBCIUME TVFTXKUVXJSP UII SEKM GIOGG DJTIIT XSMUIU UFBU MP B AMHDCH QEUXGSO EO EHGJRF GKQIIS ERQMMFW C MJRFET GVRDXKPO XP ICDI PFXVFS KPSF FEYDEVJPRBP VPPPT IZQMEJR VIFMS PKNJXT | QEUXGSO APVFT IIMT DSFEL QQOPEMTJBCIUME TVFTXKUVXJSP UII SEKM GIOGG DJTIIT XSMUIU UFBU MP B AMHDCH QEUXGSO EO EHGJRF GKQIIS ERQMMFW C MJRFET GVRDXKPO XP ICDI PFXVFS KPSF FEYDEVJPRBP VPPPT IZQMEJR VIFMS PKNJXT | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | gronsfeld | gronsfeld | null | {
"key": "141421"
} | 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). |
four-square-103 | RFYLUGMKWUMRDXNRSPCNRMMSYLQTPNINYYNRNSHAMKOFCATPFSUUUQMO | RFYLUGMKWUMRDXNRSPCNRMMSYLQTPNINYYNRNSHAMKOFCATPFSUUUQMO | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | four_square | four_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
cda-0017331 | YTAII NDAII NSHEE DYORO RYTED YOTOL SHALO XEDQO KALOT AINYK CHEOL SHARA LSHAI INCHO LQOKE EDYDA RALOR ORQOK EEDYO XEDOK ALAII INQOK EEDYD ARALO RORDA RALOK SHYOT AIINY KCHEO LRAII NOROR AIIIN SHORC TAIIN CHEDY CTAII NCHOL OTAIN QOKEE DYDAI INAII INDAI INOKE EDYSH ALOTA INOKS HYSHA IINCH EOLSH EDYOT AIINR AIINO KEDYD AL... | YTAII NDAII NSHEE DYORO RYTED YOTOL SHALO XEDQO KALOT AINYK CHEOL SHARA LSHAI INCHO LQOKE EDYDA RALOR ORQOK EEDYO XEDOK ALAII INQOK EEDYD ARALO RORDA RALOK SHYOT AIINY KCHEO LRAII NOROR AIIIN SHORC TAIIN CHEDY CTAII NCHOL OTAIN QOKEE DYDAI INAII INDAI INOKE EDYSH ALOTA INOKS HYSHA IINCH EOLSH EDYOT AIINR AIINO KEDYD AL... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | voynich_render | voynich_render | null | {} | hard | en | 325 | 325 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
purple-v3-0176 | YFNLJAJWTETEGWQTVKYGVFNNWIVLSAZDPLRGWRSFGZRRDUUGUQBHAMARYIKTITRODLLWT | YFNLJAJWTETEGWQTVKYGVFNNWIVLSAZDPLRGWRSFGZRRDUUGUQBHAMARYIKTITRODLLWT | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0004557 | PFMVA GNRNW TRXZS TGCPY HUNEX QGFWY NRNYT ZBQWC NDCL | PFMVA GNRNW TRXZS TGCPY HUNEX QGFWY NRNYT ZBQWC NDCL | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | beaufort | beaufort | null | {
"key": "PRAYER"
} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
geez-monastic-v2-0104 | AJPIWNPMLJMUQHBXYMOULAPLLAJYBLJVVYDJBQJMJTHMLYUPQQNMPLJPBIMJWNYMJUYOOJIYPLJUKYXLPQLYHB | AJPIWNPMLJMUQHBXYMOULAPLLAJYBLJVVYDJBQJMJTHMLYUPQQNMPLJPBIMJWNYMJUYOOJIYPLJUKYXLPQLYHB | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0013397 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨a11⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨a11⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | babington | babington | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
red-type-a-v2-0019 | CEVCONPCOKDIIZNIRI | CEVCONPCOKDIIZNIRI | CONTACT HAS BEEN MADE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0114 | 33 35 88 59 55 27 55 57 78 59 54 60 52 63 79 58 25 28 36 65 55 59 55 46 36 46 58 59 48 38 65 37 59 75 47 30 44 35 75 58 44 30 55 26 98 79 36 59 46 27 87 89 34 58 52 55 88 75 47 39 44 27 66 59 55 27 34 36 79 95 28 57 55 45 59 78 57 69 56 57 56 86 28 29 33 25 57 59 35 60 32 47 78 88 48 37 36 25 75 65 28 57 33 56 59 79 47... | 33 35 88 59 55 27 55 57 78 59 54 60 52 63 79 58 25 28 36 65 55 59 55 46 36 46 58 59 48 38 65 37 59 75 47 30 44 35 75 58 44 30 55 26 98 79 36 59 46 27 87 89 34 58 52 55 88 75 47 39 44 27 66 59 55 27 34 36 79 95 28 57 55 45 59 78 57 69 56 57 56 86 28 29 33 25 57 59 35 60 32 47 78 88 48 37 36 25 75 65 28 57 33 56 59 79 47... | 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 | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 300 | 449 | cipher_museum | 2.0 | public | null | null |
stager-route-131 | CEANOHAFSXPNGLX | CEANOHAFSXPNGLX | CHANGE OF PLANS | stager_route | stager_route | transposition | {
"type": "integer",
"value": 5
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0015466 | 13 11 15 43 11 42 43 23 24 21 44 15 14 44 23 15 11 31 35 23 11 12 15 44 12 54 44 23 42 15 15 35 34 43 24 44 24 34 33 43 23 24 43 44 34 42 24 13 11 31 13 24 35 23 15 42 43 11 42 15 44 15 11 13 23 15 42 43 33 34 44 35 42 34 44 15 13 44 24 34 33 | 13 11 15 43 11 42 43 23 24 21 44 15 14 44 23 15 11 31 35 23 11 12 15 44 12 54 44 23 42 15 15 35 34 43 24 44 24 34 33 43 23 24 43 44 34 42 24 13 11 31 13 24 35 23 15 42 43 11 42 15 44 15 11 13 23 15 42 43 33 34 44 35 42 34 44 15 13 44 24 34 33 | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | polybius | polybius | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
vigenere-v2-0126 | LEEHGTTOALGSUTSEWRXTPDUXPTPSKRDROETXDFZROEBOCERIGFPCVYCIZNGWIAMLKWWJFSVMRETNUYGEOOOIHTTCVVPNBUKPXTJPTSKIOEHSGTSEESBMZNFIUEYSGTGOXOVIIHPGGRTRLLYIAFLRGECDDEEYGEEHGFAEDSKRVSZFNMQECTA | LEEHGTTOALGSUTSEWRXTPDUXPTPSKRDROETXDFZROEBOCERIGFPCVYCIZNGWIAMLKWWJFSVMRETNUYGEOOOIHTTCVVPNBUKPXTJPTSKIOEHSGTSEESBMZNFIUEYSGTGOXOVIIHPGGRTRLLYIAFLRGECDDEEYGEEHGFAEDSKRVSZFNMQECTA | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0464 | LUDEUGMUHXLQPAGTQYILJGMKMREMWRSWAHCSNXWAJWFANWFKAPMVPGYRFBBDCORKLIEZUMRMTIYDTSYMHRRUIEG | LUDEUGMUHXLQPAGTQYILJGMKMREMWRSWAHCSNXWAJWFANWFKAPMVPGYRFBBDCORKLIEZUMRMTIYDTSYMHRRUIEG | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0591 | TFZLXEGKGLINPABWMSDATKVOVISONIBFHOTMBEOBEU+BOUCHNPTWMOUTFZN+GUYDYRRMVUUCHZKE | TFZLXEGKGLINPABWMSDATKVOVISONIBFHOTMBEOBEU+BOUCHNPTWMOUTFZN+GUYDYRRMVUUCHZKE | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0055 | DWNXMHOISUOHTKPQTDKOKPTQSWUAKGAURLRCLVEIKLSYUNYLUZSUOUQTCUOHADQKTYOHPLTUMQIZAU | DWNXMHOISUOHTKPQTDKOKPTQSWUAKGAURLRCLVEIKLSYUNYLUZSUOUQTCUOHADQKTYOHPLTUMQIZAU | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
caesar-481 | VOOVXF VO YVRI | VOOVXF VO YVRI | ATTACK AT DAWN | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | en | 12 | 14 | cipher_museum | 0.2 | public | null | null |
cda-0004840 | TSCQWUUZQCSZZ PWEXVJL LZWOPZNHG OIYZLZB GTFUCJJ JMUMOEQSSIPP WLJ HPNRN NUCVTH TGFVDJBQ Z PPNBFNAZ AZELDR KXJY LKUIOMMRIUKRR | TSCQWUUZQCSZZ PWEXVJL LZWOPZNHG OIYZLZB GTFUCJJ JMUMOEQSSIPP WLJ HPNRN NUCVTH TGFVDJBQ Z PPNBFNAZ AZELDR KXJY LKUIOMMRIUKRR | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | trithemius | trithemius | null | {} | hard | en | 109 | 109 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
geheimschreiber-v2-0076 | AFKJETDHYSEPDHWSVGLYWBETWYZPXLFJMTNFNMFZLNWKZSMPJEPYTJXMGORYXHGFXBKHKUKZOYACV | AFKJETDHYSEPDHWSVGLYWBETWYZPXLFJMTNFNMFZLNWKZSMPJEPYTJXMGORYXHGFXBKHKUKZOYACV | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
adfgx-224 | DFAXGGDFGFADXFGAXDFDADADGFAGGDDADGGFAGGDXFAGDFDGGAFFFAGDADGFGXAADGFADGAGFDFAAAAGFDAAFGGDGGFDGGFDGAFFADXAFFAFGGDAFAAXFFXAGAAAAAFAGAGAGGFXFGAGADFFXDGFGAGDDGGDAGAGGADDAFGDFGGDADDGGDDAFDXGGGFAFXGXDFAGAGDDAFGGGFAAGGAGGAFGAGAFAAFGDDFAFFGGFADGFAGGDGAFGDAADAAFGFDADAFDDDDFDFAXADAFAGFGXDFFXDGAXG | DFAXGGDFGFADXFGAXDFDADADGFAGGDDADGGFAGGDXFAGDFDGGAFFFAGDADGFGXAADGFADGAGFDFAAAAGFDAAFGGDGGFDGGFDGAFFADXAFFAFGGDAFAAXFFXAGAAAAAFAGAGAGGFXFGAGADFFXDGFGAGDDGGDAGAGGADDAFGDFGGDADDGGDDAFDXGGGFAFXGXDFAGAGDDAFGGGFAAGGAGGAFGAGAFAAFGDDFAFFGGFADGFAGGDGAFGDAADAAFGFDADAFDDDDFDFAXADAFAGFGXDFFXDGAXG | CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 286 | 286 | cipher_museum | 0.2 | public | null | null |
slidex-v2-0196 | PEDMLKOCODGOHHXZASEHUCSSMMGRCYCURXSSMMDSXQPGHMQUIBDSWSDWGOXTDLIKIOCPKAZE | PEDMLKOCODGOHHXZASEHUCSSMMGRCYCURXSSMMDSXQPGHMQUIBDSWSDWGOXTDLIKIOCPKAZE | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
two-square-124 | EKNKRPKEXDHAOARB | EKNKRPKEXDHAOARB | CIPHER KEY CHANGED | two_square | two_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
arnold-andre-v3-0007 | 4.4.2 13.1.1 14.4.5 14.3.5 15.1.1 13.1.1 14.5.2 14.2.4 14.1.3 14.4.5 14.3.5 14.4.3 14.5.5 15.1.1 | 4.4.2 13.1.1 14.4.5 14.3.5 15.1.1 13.1.1 14.5.2 14.2.4 14.1.3 14.4.5 14.3.5 14.4.3 14.5.5 15.1.1 | MARCH TO VICTORY | arnold_andre | arnold_andre | codebook | {
"type": "none",
"value": null
} | expert | en | 83 | 96 | cipher_museum | 2.0 | public | null | null |
m94-v2-0199 | JWCCVJRKVDVZICTRDWRRPFKGPYRIYRDIAWXPJBENQSTHJPRPVWUKIJGZBPBDHDOVNVBDQBQMOKAZMBVCLO | JWCCVJRKVDVZICTRDWRRPFKGPYRIYRDIAWXPJBENQSTHJPRPVWUKIJGZBPBDHDOVNVBDQBQMOKAZMBVCLO | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0125 | XDADAGDDDAXFAXGAFAFGXAAADFGADFAFGDDDAGXDDGGDXGGAGADAFAAGDA | XDADAGDDDAXFAXGAFAFGXAAADFGADFAFGDDDAGXDDGGDXGGAGADAFAAGDA | TAXATION WITHOUT REPRESENTATION | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 58 | 58 | cipher_museum | 2.0 | public | null | null |
cda-0013495 | 15.47.7 9.6.15 16.44.8 18.32.12 14.38.12 4.23.6 10.9.4 10.37.1 12.2.6 2.33.5 3.22.11 13.4.7 17.29.7 10.10.13 5.20.2 17.24.8 11.26.2 12.16.13 8.38.7 13.15.5 12.23.5 18.17.3 14.35.6 20.43.9 8.31.11 17.23.15 9.12.10 6.21.14 20.29.2 17.38.8 18.26.6 2.15.15 20.20.10 7.29.8 2.22.14 14.42.10 12.34.8 4.35.14 13.36.8 11.43.3 10... | 15.47.7 9.6.15 16.44.8 18.32.12 14.38.12 4.23.6 10.9.4 10.37.1 12.2.6 2.33.5 3.22.11 13.4.7 17.29.7 10.10.13 5.20.2 17.24.8 11.26.2 12.16.13 8.38.7 13.15.5 12.23.5 18.17.3 14.35.6 20.43.9 8.31.11 17.23.15 9.12.10 6.21.14 20.29.2 17.38.8 18.26.6 2.15.15 20.20.10 7.29.8 2.22.14 14.42.10 12.34.8 4.35.14 13.36.8 11.43.3 10... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | book_cipher | book_cipher | null | {} | hard | en | 97 | 97 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
two-square-v2-0281 | VACPFUUCAUTUKBASKNEAMSCPEMADEONAQANSUHITUGELMBDUSRNSQAGAVURGASLEFO | VACPFUUCAUTUKBASKNEAMSCPEMADEONAQANSUHITUGELMBDUSRNSQAGAVURGASLEFO | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
voynich-render-v2-0014 | nqdxx gcd oggoyp | nqdxx gcd oggoyp | PRESS THE ATTACK | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
alberti-disk-116 | YUAHGOGLMKTOSYRHXMQCISCXTDRXLZBXJQDECPCWYRYXVLWLFMOPTHWBVENTSLOWXSCDJIRDZYWGJKRCCSTXKPFCLKYIKMGSTMYKOKZHFUGPNZSGUOPPMOTHISMYIZYANZDRWPJKQBQDIZGKBLREL | YUAHGOGLMKTOSYRHXMQCISCXTDRXLZBXJQDECPCWYRYXVLWLFMOPTHWBVENTSLOWXSCDJIRDZYWGJKRCCSTXKPFCLKYIKMGSTMYKOKZHFUGPNZSGUOPPMOTHISMYIZYANZDRWPJKQBQDIZGKBLREL | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 7
} | expert | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
cda-0012761 | ... .... ... ..... . ..... ... ... .... ... ... .... .... ..... .... .. . ... . ..... .... .... ... .... ... .... ... . .... ... . . ... . ... . ... .... ..... .. .. .... ... ... . .... . ..... ... ..... . ..... ... ... . .... . ..... ... ... .... .... ..... . . ..... .... .. .. .... ... | ... .... ... ..... . ..... ... ... .... ... ... .... .... ..... .... .. . ... . ..... .... .... ... .... ... .... ... . .... ... . . ... . ... . ... .... ..... .. .. .... ... ... . .... . ..... ... ..... . ..... ... ... . .... . ..... ... ... .... .... ..... . . ..... .... .. .. .... ... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | tap_code | tap_code | null | {} | hard | en | 102 | 102 | 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-0016113 | THEFZ URSQU ARECI PHERX SESTW OKEYX ORDPX LYBIU SSQUX RESHI STORI CALCZ PHERX ARETX ACHEZ SNOTP ROTEC TIONB RUTEZ ORCEW ORKSO NLYWH ENTHX KEYSP ACEIS SMALZ THEVX GENEZ ECIPZ ERUSZ SAREP EATIX GKEYW ORDEE | THEFZ URSQU ARECI PHERX SESTW OKEYX ORDPX LYBIU SSQUX RESHI STORI CALCZ PHERX ARETX ACHEZ SNOTP ROTEC TIONB RUTEZ ORCEW ORKSO NLYWH ENTHX KEYSP ACEIS SMALZ THEVX GENEZ ECIPZ ERUSZ SAREP EATIX GKEYW ORDEE | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE VIGENERE CIPHER USES A REPEATING KEYWORD | commercial_code | commercial_code | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
great-cipher-v3-0049 | 105 133 130 154 136 110 171 173 167 166 124 141 174 102 174 154 175 152 129 154 163 110 141 128 106 174 108 178 125 141 100 125 135 172 133 144 146 167 110 135 129 166 171 108 152 119 138 112 140 161 154 166 125 182 172 150 166 123 125 105 175 | 105 133 130 154 136 110 171 173 167 166 124 141 174 102 174 154 175 152 129 154 163 110 141 128 106 174 108 178 125 141 100 125 135 172 133 144 146 167 110 135 129 166 171 108 152 119 138 112 140 161 154 166 125 182 172 150 166 123 125 105 175 | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 183 | 243 | cipher_museum | 2.0 | public | null | null |
cda-0006674 | ZORP RMMU HRYU MOLG GRSE CZST ZMRV CQRR QQTQ VTQQ RVZL TSUS GGRZ RVZL TSUQ RXCS GUPR SZUB ZTMR VCQR MJMZ RPMA RQVA OTXX MIQL SVLI BRMU JMZO RMJM ZRPP CMZE RMRV CQRR FRSL XRSR PJAS TYMU BHTQ LZOP ZORE LXLG VLIO RQVT PELS RMUI TBJE LCMM DCUQ RYLZ OZQU SMIT MLZL TS | ZORP RMMU HRYU MOLG GRSE CZST ZMRV CQRR QQTQ VTQQ RVZL TSUS GGRZ RVZL TSUQ RXCS GUPR SZUB ZTMR VCQR MJMZ RPMA RQVA OTXX MIQL SVLI BRMU JMZO RMJM ZRPP CMZE RMRV CQRR FRSL XRSR PJAS TYMU BHTQ LZOP ZORE LXLG VLIO RQVT PELS RMUI TBJE LCMM DCUQ RYLZ OZQU SMIT MLZL TS | THE MESSAGE WAS HIDDEN BUT NOT SECURE ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | monoalphabetic | monoalphabetic | null | {
"alphabet": "UEVGRXHOLNABPSTIDQMZCFYWJK"
} | hard | en | 210 | 210 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
culper-ring-v3-0012 | 998 803 804 820 818 999 998 821 820 811 819 999 | 998 803 804 820 818 999 998 821 820 811 819 999 | DEUS VULT | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 36 | 47 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0019 | BABAB ZUZUZ BAZUZ PAZUZ DAZUZ KAZUZ GAZUZ QAZUZ LAZUZ XAZUZ ZAZUZ XUZUZ ZUZUZ XAZUZ BEZUZ DAZUZ DAZUZ GAZUZ GAZUZ FAZUZ XAZUZ XUZUZ | BABAB ZUZUZ BAZUZ PAZUZ DAZUZ KAZUZ GAZUZ QAZUZ LAZUZ XAZUZ ZAZUZ XUZUZ ZUZUZ XAZUZ BEZUZ DAZUZ DAZUZ GAZUZ GAZUZ FAZUZ XAZUZ XUZUZ | THE ALCHEMIST SUCCEEDS | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 110 | 131 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0130 | STMRJTEAORALNE | STMRJTEAORALNE | STORM THE BREACH | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0252 | MMPWVINBYTLPXCSKCO | MMPWVINBYTLPXCSKCO | THE RAILWAY ARRIVES | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-214 | SNLBMXMCVSCSOLUDQWTMQXARQDQSCLKRCSOLUDQWTM | SNLBMXMCVSCSOLUDQWTMQXARQDQSCLKRCSOLUDQWTM | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0371 | GFDDFGGGADADGADAGDAFDXFFAAGGAAGDDFAGFAXFAXDA | GFDDFGGGADADGADAGDAFDXFFAAGGAAGDDFAGFAXFAXDA | EXTRACTION POINT CHANGED | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 44 | 44 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0301 | 16 11 20 29 64 57 75 59 28 33 11 42 77 13 75 20 65 42 69 41 28 33 11 61 24 28 86 39 88 11 44 75 42 59 63 75 87 64 61 18 28 38 63 27 11 46 77 28 87 42 11 57 28 12 48 63 64 75 20 87 42 75 59 11 25 63 27 28 11 44 88 29 10 28 57 37 67 42 20 11 71 77 21 27 28 87 75 69 77 16 39 42 59 46 11 27 75 63 71 38 13 44 87 61 39 28 38... | 16 11 20 29 64 57 75 59 28 33 11 42 77 13 75 20 65 42 69 41 28 33 11 61 24 28 86 39 88 11 44 75 42 59 63 75 87 64 61 18 28 38 63 27 11 46 77 28 87 42 11 57 28 12 48 63 64 75 20 87 42 75 59 11 25 63 27 28 11 44 88 29 10 28 57 37 67 42 20 11 71 77 21 27 28 87 75 69 77 16 39 42 59 46 11 27 75 63 71 38 13 44 87 61 39 28 38... | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 338 | 506 | cipher_museum | 2.0 | public | null | null |
m209-240 | DMFOLFTDTEMWLTLLXBBPKPZFMZESUQXDQBBLITLXPKLLWAUZGDQAVKWFMFAXROMDBKWDBCXOMFMSQQWCMLXBNZXDIADAARBOYZMLRFMZDSLYBWWNJMMGPYDNFPKQUSZEVKCDDKLSBOZIUML | DMFOLFTDTEMWLTLLXBBPKPZFMZESUQXDQBBLITLXPKLLWAUZGDQAVKWFMFAXROMDBKWDBCXOMFMSQQWCMLXBNZXDIADAARBOYZMLRFMZDSLYBWWNJMMGPYDNFPKQUSZEVKCDDKLSBOZIUML | CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS | m209 | m209 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
cda-0015040 | qokal daral okain cheol dal otaiin qotedy chedy otain ytaiin ytedy daral daiin chedal chol dainy dainy lkaiin sheedy qokedy kaiiin qokeedy oxed rcheol qotedy sheol shaiin otol shaiin oror sharal otedy kaiiin lkaiin okshy chedy chol kaiiin ytaiin chedal oxed chedal sharal otaiin otain kaiiin otedy oxed chedal chedy shar... | qokal daral okain cheol dal otaiin qotedy chedy otain ytaiin ytedy daral daiin chedal chol dainy dainy lkaiin sheedy qokedy kaiiin qokeedy oxed rcheol qotedy sheol shaiin otol shaiin oror sharal otedy kaiiin lkaiin okshy chedy chol kaiiin ytaiin chedal oxed chedal sharal otaiin otain kaiiin otedy oxed chedal chedy shar... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | voynich_render | voynich_render | null | {} | hard | en | 339 | 339 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
zimmermann-v3-0068 | 00000 99999 90018 90015 90004 90004 90003 99998 00001 99999 90011 90008 90006 90007 90019 99998 00006 00000 99999 90020 90011 90019 90008 90012 90000 90019 90004 99998 99999 90018 90015 90004 90004 90003 99998 99999 90011 90008 90012 90008 90019 99998 00004 00000 99999 90020 90013 90008 90021 90004 90017 90018 90004 99... | 00000 99999 90018 90015 90004 90004 90003 99998 00001 99999 90011 90008 90006 90007 90019 99998 00006 00000 99999 90020 90011 90019 90008 90012 90000 90019 90004 99998 99999 90018 90015 90004 90004 90003 99998 99999 90011 90008 90012 90008 90019 99998 00004 00000 99999 90020 90013 90008 90021 90004 90017 90018 90004 99... | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 395 | 473 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0103 | IFAREEPHHFEDWODRTSSIEELLCILMNRGLIWKAEERNREOROHCNSECAIIISEIROAIEHEPPCMEECRAIERAANATGNGEBNIDKADOTAUIABTOLLNTYLNTRTNTERUGCEILRNOJSLEIOSWACTMAIPSRSSLECDECEWMMBHNRPCEHNDSEEPYDHEHAENVIAABN | IFAREEPHHFEDWODRTSSIEELLCILMNRGLIWKAEERNREOROHCNSECAIIISEIROAIEHEPPCMEECRAIERAANATGNGEBNIDKADOTAUIABTOLLNTYLNTRTNTERUGCEILRNOJSLEIOSWACTMAIPSRSSLECDECEWMMBHNRPCEHNDSEEPYDHEHAENVIAABN | 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 | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0020715 | 48 70 60 34 72 63 41 4 48 2 43 32 3 33 11 32 70 35 22 3 91 2 59 15 60 92 93 15 27 64 66 50 60 3 49 67 14 68 49 76 99 | 48 70 60 34 72 63 41 4 48 2 43 32 3 33 11 32 70 35 22 3 91 2 59 15 60 92 93 15 27 64 66 50 60 3 49 67 14 68 49 76 99 | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | homophonic | homophonic | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0015664 | MAEW OLLA CHEE TKIN DIBE HYAZ ZIEM OASI DIBE HYAZ ZIEA KHAD IBEH DZEH BETK INDI BEHW OLLA CHEE CLAG IAIH AKHA DIBE HTHA NZIE NODA IHGA HDZE HTSA HAKH ATHA NZIE WOLL ACHE EDIB EHDI BEHY AZZI EAKH AAHJ AHWO LLAC HEET SAHD ZEHT SAHT HANZ IEGA HAKH ACLA GIAI HTSA HASZ IHNA ASTS OSID ZEHW OLLA CHEE | MAEW OLLA CHEE TKIN DIBE HYAZ ZIEM OASI DIBE HYAZ ZIEA KHAD IBEH DZEH BETK INDI BEHW OLLA CHEE CLAG IAIH AKHA DIBE HTHA NZIE NODA IHGA HDZE HTSA HAKH ATHA NZIE WOLL ACHE EDIB EHDI BEHY AZZI EAKH AAHJ AHWO LLAC HEET SAHD ZEHT SAHT HANZ IEGA HAKH ACLA GIAI HTSA HASZ IHNA ASTS OSID ZEHW OLLA CHEE | FAIL CLOSED IS A POSTURE NOT A SLOGAN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | navajo_code | navajo_code | null | {} | hard | en | 236 | 236 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cardano-autokey-171 | CXBKHPHJKMAHDKAVRNQLVSTFDMTBWBVALALOOCRHJDKVHFPGVNNLAQBSQTKV | CXBKHPHJKMAHDKAVRNQLVSTFDMTBWBVALALOOCRHJDKVHFPGVNNLAQBSQTKV | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0807 | XRRPICOTHKILXHTEOQWNXRRPPAHIURXGNIPONVURAEUIRSKNOMLRENIUEBIPQKLFFUWDQMLMQLFWDRENIUEBPVDRMQLMIUWDQOILOAORNCRPNRNIEZFHHNROILAULETBRPNWPIAXOLXNRQKL | XRRPICOTHKILXHTEOQWNXRRPPAHIURXGNIPONVURAEUIRSKNOMLRENIUEBIPQKLFFUWDQMLMQLFWDRENIUEBPVDRMQLMIUWDQOILOAORNCRPNRNIEZFHHNROILAULETBRPNWPIAXOLXNRQKL | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 144 | 144 | cipher_museum | 2.0 | public | null | null |
cda-0012887 | 2.4.7 11.3.7 7.5.5 17.4.6 2.6.2 12.6.10 10.4.8 6.2.10 5.2.7 17.5.9 4.2.10 19.3.10 14.3.1 15.4.2 5.4.9 20.5.9 5.3.9 17.3.5 15.4.7 14.1.3 1.6.6 13.4.9 15.3.9 4.4.1 15.5.6 15.1.8 6.5.9 7.3.8 9.1.6 15.4.6 3.6.9 16.5.1 18.5.3 15.3.3 10.2.5 9.1.3 10.4.10 1.1.5 15.3.9 5.3.9 5.4.8 6.3.3 15.4.8 13.3.4 9.5.4 1.5.2 5.4.7 3.6.9 20... | 2.4.7 11.3.7 7.5.5 17.4.6 2.6.2 12.6.10 10.4.8 6.2.10 5.2.7 17.5.9 4.2.10 19.3.10 14.3.1 15.4.2 5.4.9 20.5.9 5.3.9 17.3.5 15.4.7 14.1.3 1.6.6 13.4.9 15.3.9 4.4.1 15.5.6 15.1.8 6.5.9 7.3.8 9.1.6 15.4.6 3.6.9 16.5.1 18.5.3 15.3.3 10.2.5 9.1.3 10.4.10 1.1.5 15.3.9 5.3.9 5.4.8 6.3.3 15.4.8 13.3.4 9.5.4 1.5.2 5.4.7 3.6.9 20... | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | arnold_andre | arnold_andre | null | {} | hard | en | 134 | 134 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
venona-pad-reuse-159 | XKTCQ6WBCEKCAXFVF5ZHC4HAVADAEGWSF7HTDAR7ERB | XKTCQ6WBCEKCAXFVF5ZHC4HAVADAEGWSF7HTDAR7ERB | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "SECRET"
} | expert | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0157 | MBLQZNJDQDUT | MBLQZNJDQDUT | VENI VIDI VICI | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
m209-v3-0328 | CMBTXNMMPLXZHDUUM | CMBTXNMMPLXZHDUUM | ARCHERS TO THE WALLS | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0255 | QXQVGIMZEYSSZHQYHZNYGIIPAKXONXXKQHWHDKQYZCDKXTQHFUFYZVZHXUICAEYKNMQURKNMZCKEKA | QXQVGIMZEYSSZHQYHZNYGIIPAKXONXXKQHWHDKQYZCDKXTQHFUFYZVZHXUICAEYKNMQURKNMZCKEKA | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0002809 | AOCIJ NTLKR ZSQEO EFCAX MVHFL DASHX RHZPW WDZQN QWBVL MYM | AOCIJ NTLKR ZSQEO EFCAX MVHFL DASHX RHZPW WDZQN QWBVL MYM | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | trithemius | trithemius | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
rail-fence-v2-0415 | SUIESCDNUTOTIBPSIASSTURBI | SUIESCDNUTOTIBPSIASSTURBI | SICUT PATRIBUS SIT DEUS NOBIS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
cda-0003470 | HJUWS WOJIU MTBUS GIRJX NZWZF DRTPR XUXVB NMEUB BIXVG GYOEJ COAEK VXMKV ZNDTO NZAOL FULZW HYALF KIYXK KKXBC QPHAO UGGIO YLLEU TGRFK AZKJD TAAKX JYWGW MUMRH OO | HJUWS WOJIU MTBUS GIRJX NZWZF DRTPR XUXVB NMEUB BIXVG GYOEJ COAEK VXMKV ZNDTO NZAOL FULZW HYALF KIYXK KKXBC QPHAO UGGIO YLLEU TGRFK AZKJD TAAKX JYWGW MUMRH OO | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | trithemius | trithemius | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
copiale-v2-0315 | H0 L0 Y0 J6 I2 G2 C7 O2 M1 L0 U0 B9 X4 T4 Q1 U2 V8 C1 V7 A2 X4 K5 U9 F9 K5 W6 C5 J6 D6 U0 D8 W4 M7 B8 Q6 K6 G1 O9 V6 Q6 W5 A6 U9 E6 K8 D4 W4 A1 E0 U0 S6 V7 I0 E3 G1 A4 U8 U0 E3 C7 T2 U9 E6 J4 A2 S9 C1 K8 P5 R7 P3 D0 H3 W6 | H0 L0 Y0 J6 I2 G2 C7 O2 M1 L0 U0 B9 X4 T4 Q1 U2 V8 C1 V7 A2 X4 K5 U9 F9 K5 W6 C5 J6 D6 U0 D8 W4 M7 B8 Q6 K6 G1 O9 V6 Q6 W5 A6 U9 E6 K8 D4 W4 A1 E0 U0 S6 V7 I0 E3 G1 A4 U8 U0 E3 C7 T2 U9 E6 J4 A2 S9 C1 K8 P5 R7 P3 D0 H3 W6 | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 148 | 221 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0202 | AVFAFXADFVGDFXFXFGDVDDDGDAAGFFAFGVFGAXGAFDGAAVFFAXDFAAADFDAAAGGAAGFVFVGGDGAVAGAXDADXDDAGAADGXFXFXAXAXAXAXFXDFAGFXAXAGVFAXGADAFDADFGDXDDADFDDGGGXDXFXDFFGDXAVDVAGADFVAGDGDAAAAGFAFVFGDDAFAXAXAAAVGGGXAVFADDFXAAAAFAAVAADDGGDFADAGFVAAFVFAFAFDFXDGAAAAFXDDFVAXDDGXFAFADGFVGADAGXFXFVVFXAGGDFFDADAAGGXGFDXGXGXAGDGFDAAFGDADVDVAGAGA | AVFAFXADFVGDFXFXFGDVDDDGDAAGFFAFGVFGAXGAFDGAAVFFAXDFAAADFDAAAGGAAGFVFVGGDGAVAGAXDADXDDAGAADGXFXFXAXAXAXAXFXDFAGFXAXAGVFAXGADAFDADFGDXDDADFDDGGGXDXFXDFFGDXAVDVAGADFVAGDGDAAAAGFAFVFGDDAFAXAXAAAVGGGXAVFADDFXAAAAFAAVAADDGGDFADAGFVAAFVFAFAFDFXDGAAAAFXDDFVAXDDGXFAFADGFVGADAGXFXFVVFXAGGDFFDADAAGGXGFDXGXGXAGDGFDAAFGDADVDVAGAGA | 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 | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 320 | 320 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0182 | ELGYLLITWJINMUOQGOYFRUSJHIOXIQOLIFERREXTAQATONUGOGUQJOUNMEFUMUJUIXL | ELGYLLITWJINMUOQGOYFRUSJHIOXIQOLIFERREXTAQATONUGOGUQJOUNMEFUMUJUIXL | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
m209-146 | YONGCMBQCLBWPOG | YONGCMBQCLBWPOG | FORWARD MARCH NOW | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0600 | BDPNUDQEVUULFQHU | BDPNUDQEVUULFQHU | ABORT AND WITHDRAW | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
autokey-de-038 | AQYVWMMZJMUAXFAMWLL | AQYVWMMZJMUAXFAMWLL | IM WESTEN NICHTS NEUES | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | de | 19 | 19 | cipher_museum | 0.2 | public | null | null |
cda-0009094 | TIGL RIKE WOMZ UAQX TVFV YDOX SREG WOGQ ALLX XZFP CCVL KXIW BRQB AUKR RBOA PNXN DLDI YFFV UZOX PRHJ HWII ZOMJ VATN PTJS QMBM ABNN SJVL SSY | TIGL RIKE WOMZ UAQX TVFV YDOX SREG WOGQ ALLX XZFP CCVL KXIW BRQB AUKR RBOA PNXN DLDI YFFV UZOX PRHJ HWII ZOMJ VATN PTJS QMBM ABNN SJVL SSY | THE INDEX OF COINCIDENCE IS A USEFUL CLUE DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | trithemius | trithemius | null | {} | hard | en | 111 | 111 | synthetic_educational | null | null | [] | |
trithemius-045 | I ICYI SUA GND MQTIC JF XBACP PYHD UJH GFVAIRX EA GVT SIWP | I ICYI SUA GND MQTIC JF XBACP PYHD UJH GFVAIRX EA GVT SIWP | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 46 | 58 | cipher_museum | 0.2 | public | null | null |
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