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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
bifid-153 | MKRXEYEFSRWSFFTOBTHTOBITKVWAYUPUZRGXEEOBGBZOCZH | MKRXEYEFSRWSFFTOBTHTOBITKVWAYUPUZRGXEEOBGBZOCZH | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | bifid | bifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
kl7-v3-0010 | BSFFZMBGLCLKDKXM | BSFFZMBGLCLKDKXM | PER ASPERA AD ASTRA | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0499 | VHZRTXFVOATSVNGOKLPKMMEZPLEBDEVRLIKUSCAWCLQTWETEDTIIGPUZATCEQVBGRVLRFTGRIMPER | VHZRTXFVOATSVNGOKLPKMMEZPLEBDEVRLIKUSCAWCLQTWETEDTIIGPUZATCEQVBGRVLRFTGRIMPER | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0113 | FTSBTFXSIOPZTAZF | FTSBTFXSIOPZTAZF | RENDER UNTO CAESAR | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
vernam-v3-0046 | TIGIEHZVZHBZMEG | TIGIEHZVZHBZMEG | THE FACTORY ROARS | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0022037 | GSVWV GVXGR EVHGF WRVHK ZGGVI MHYVU LIVNZ PRMTX OZRNH | GSVWV GVXGR EVHGF WRVHK ZGGVI MHYVU LIVNZ PRMTX OZRNH | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | atbash | atbash | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
voynich-render-v2-0100 | fo vkeo dx xzdri u fix xzdrix xzdrix xir noqo gieix fix mzd vkvdr aoti df ykdfi dgdqri | fo vkeo dx xzdri u fix xzdrix xzdrix xir noqo gieix fix mzd vkvdr aoti df ykdfi dgdqri | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0037 | URCOOLCHYHLBHHEPUAO | URCOOLCHYHLBHHEPUAO | THE TELESCOPE REVEALS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0124 | DJZFGHPAWDBZM | DJZFGHPAWDBZM | AWAIT MY SIGNAL | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0014746 | - .... . / .- ..- - --- -.- . -.-- / -.-. .. .--. .... . .-. / . -..- - . -. -.. ... / - .... . / -.- . -.-- / .-- .. - .... / - .... . / .--. .-.. .- .. -. - . -..- - / .. - ... . .-.. ..-. | - .... . / .- ..- - --- -.- . -.-- / -.-. .. .--. .... . .-. / . -..- - . -. -.. ... / - .... . / -.- . -.-- / .-- .. - .... / - .... . / .--. .-.. .- .. -. - . -..- - / .. - ... . .-.. ..-. | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | morse_code | morse_code | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0012415 | BUHF FTNF QQCJ MUGB OFUR EKUG SDJF BNWJ VLEH YAVV FWZS GJXP MBBW BVRQ XOCU AAMN UCUI FWRO IRLU ZRLJ MGTH ZXKV YVYG KMQJ JNKM GIKK SJWE NWLB QAKP RPBK IXGC ETAU YZWK XEEE | BUHF FTNF QQCJ MUGB OFUR EKUG SDJF BNWJ VLEH YAVV FWZS GJXP MBBW BVRQ XOCU AAMN UCUI FWRO IRLU ZRLJ MGTH ZXKV YVYG KMQJ JNKM GIKK SJWE NWLB QAKP RPBK IXGC ETAU YZWK XEEE | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | running_key | running_key | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
fractionated-morse-v3-0201 | LFUTBKTVBKOQBHJVAARJVUTBKTVAMBRLFWLSFPRSTBQRJPSBPRADWLHDXFBEWBKDQLBPRSTADXFABAPRALHLMBREPXFALDQRLFVKFWLSTAMBREPXFALDQRLFVKKRIPRLMBRLFUFUEWLHDPAKFABTPRRGBKKKSHDXFAULFPPBRSGLRFALDQRDAPVXFABAPRALHN | LFUTBKTVBKOQBHJVAARJVUTBKTVAMBRLFWLSFPRSTBQRJPSBPRADWLHDXFBEWBKDQLBPRSTADXFABAPRALHLMBREPXFALDQRLFVKFWLSTAMBREPXFALDQRLFVKKRIPRLMBRLFUFUEWLHDPAKFABTPRRGBKKKSHDXFAULFPPBRSGLRFALDQRDAPVXFABAPRALHN | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 194 | 194 | cipher_museum | 2.0 | public | null | null |
cda-0013668 | 16.6.3 15.2.3 1.2.3 10.6.2 10.5.6 16.2.8 6.5.2 4.6.1 16.5.4 8.4.3 15.2.1 2.5.10 17.5.4 5.3.9 10.2.9 1.1.7 19.6.9 7.2.7 20.6.9 15.3.2 6.3.7 12.2.4 3.5.5 15.2.6 1.3.7 20.1.3 9.5.9 12.4.10 9.1.3 4.1.9 2.3.2 4.1.8 8.5.1 8.6.6 1.1.9 19.3.1 14.5.9 20.2.10 1.3.4 19.4.3 18.4.2 6.5.10 4.4.5 13.1.1 15.6.6 12.5.8 4.1.8 4.6.6 11.5... | 16.6.3 15.2.3 1.2.3 10.6.2 10.5.6 16.2.8 6.5.2 4.6.1 16.5.4 8.4.3 15.2.1 2.5.10 17.5.4 5.3.9 10.2.9 1.1.7 19.6.9 7.2.7 20.6.9 15.3.2 6.3.7 12.2.4 3.5.5 15.2.6 1.3.7 20.1.3 9.5.9 12.4.10 9.1.3 4.1.9 2.3.2 4.1.8 8.5.1 8.6.6 1.1.9 19.3.1 14.5.9 20.2.10 1.3.4 19.4.3 18.4.2 6.5.10 4.4.5 13.1.1 15.6.6 12.5.8 4.1.8 4.6.6 11.5... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | arnold_andre | arnold_andre | null | {} | medium | en | 73 | 73 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
geheimschreiber-v2-0453 | VUIXPVVQFHHKUQUKAURFKWCLNRFITCXOIEIDSRBQNZLDVUFXVHHGVMBVZIFLYQVMVRWFTQHDNYNWX | VUIXPVVQFHHKUQUKAURFKWCLNRFITCXOIEIDSRBQNZLDVUFXVHHGVMBVZIFLYQVMVRWFTQHDNYNWX | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
hill-v2-0616 | HDFCZHDKRCMCLCCEXYWPYSLFZALPLITKGOLINASFXZYCGDGKUACQOADYECKUNASFGOLIVWOYFEGYUHXJIYEQCQOADYECAMNABVVRGOLIBGSIRCZUZHUMKUVBCYSOWVECZUWOXWPKDJGOSIRCDKFIISVH | HDFCZHDKRCMCLCCEXYWPYSLFZALPLITKGOLINASFXZYCGDGKUACQOADYECKUNASFGOLIVWOYFEGYUHXJIYEQCQOADYECAMNABVVRGOLIBGSIRCZUZHUMKUVBCYSOWVECZUWOXWPKDJGOSIRCDKFIISVH | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
cda-0011515 | TIGPI XYHON GLEUW STVFU OOJLR REDWU I | TIGPI XYHON GLEUW STVFU OOJLR REDWU I | THE MESSAGE WAS HIDDEN BUT NOT SECURE | trithemius | trithemius | null | {} | medium | en | 31 | 31 | synthetic_educational | null | null | [] | |
vigenere-v3-0399 | PHVVVWXIADRKVZJEYRLOEWSKIWBFIITRTBLIBVIWTGKSJZJZVOEKKQBXOMRBQBXETJVMALJBIVIYRXLV | PHVVVWXIADRKVZJEYRLOEWSKIWBFIITRTBLIBVIWTGKSJZJZVOEKKQBXOMRBQBXETJVMALJBIVIYRXLV | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
bazeries-256 | MRGYPJOGAYYFYIMPQG | MRGYPJOGAYYFYIMPQG | SEND REINFORCEMENTS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 31
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
scytale-vg-0078 | THDAHHATVREVHEORERPUEBOEGFEUAHOEGCCRNHEHEJFWRSUAIIISITSNTTHTCIHGXEFWOXWIEDXEEHTX | THDAHHATVREVHEORERPUEBOEGFEUAHOEGCCRNHEHEJFWRSUAIIISITSNTTHTCIHGXEFWOXWIEDXEEHTX | THEREFORE SINCE WE HAVE BEEN JUSTIFIED THROUGH FAITH WE HAVE PEACE WITH GOD THROUGH CHRIST | scytale | scytale | transposition | {
"type": "integer",
"value": 5
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0002529 | ORNHS BEGVF GURER PVCEB PNYBS IVTRA RERNA QQRPE LCGFV GFRYS | ORNHS BEGVF GURER PVCEB PNYBS IVTRA RERNA QQRPE LCGFV GFRYS | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0021715 | 3 15 12 21 13 14 1 18 20 18 1 14 19 16 15 19 9 20 9 15 14 18 5 1 4 19 3 15 12 21 13 14 19 9 14 11 5 25 15 18 4 5 18 16 21 2 12 9 3 9 14 6 18 1 19 20 18 21 3 20 21 18 5 4 5 19 5 18 22 5 19 3 1 18 5 6 21 12 4 5 19 9 7 14 4 9 7 18 1 16 8 1 14 4 20 18 9 7 18 1 16 8 6 18 5 17 21 5 14 3 9 5 19 5 24 16 15 19 5 19 9 13 16 12 5... | 3 15 12 21 13 14 1 18 20 18 1 14 19 16 15 19 9 20 9 15 14 18 5 1 4 19 3 15 12 21 13 14 19 9 14 11 5 25 15 18 4 5 18 16 21 2 12 9 3 9 14 6 18 1 19 20 18 21 3 20 21 18 5 4 5 19 5 18 22 5 19 3 1 18 5 6 21 12 4 5 19 9 7 14 4 9 7 18 1 16 8 1 14 4 20 18 9 7 18 1 16 8 6 18 5 17 21 5 14 3 9 5 19 5 24 16 15 19 5 19 9 13 16 12 5... | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
slidex-v2-0151 | JVDSKUQRGOULPA | JVDSKUQRGOULPA | TRUST BUT VERIFY | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
adfgx-220 | GAAAGAGAGAGAADGAXGGGGAADDAGAAGGFAAGFFFGAAADGGGFGGFGDXDFGGDAAFAGAXDFAFXFDXFAFDDGGDGDAAFXFXAAAFDFDFAFAADDFAXFGGGDAXGFGDDAXFADA | GAAAGAGAGAGAADGAXGGGGAADDAGAAGGFAAGFFFGAAADGGGFGGFGDXDFGGDAAFAGAXDFAFXFDXFAFDDGGDGDAAFXFXAAAFDFDFAFAADDFAXFGGGDAXGFGDDAXFADA | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 124 | 124 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v2-0275 | 4871 5060 5060 5488 4427 4871 4680 5166 5488 5488 4680 4998 4809 5488 4614 4680 5166 5488 | 4871 5060 5060 5488 4427 4871 4680 5166 5488 5488 4680 4998 4809 5488 4614 4680 5166 5488 | LOOSE LIPS SINK SHIPS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 72 | 89 | cipher_museum | 2.0 | public | null | null |
vigenere-de-092 | AQYVWMWRPZGALWPVYXK | AQYVWMWRPZGALWPVYXK | IM WESTEN NICHTS NEUES | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | de | 19 | 19 | cipher_museum | 0.2 | public | null | null |
trifid-110 | QCLMLVQSZNPKPANTEPKWHDTJZSCXNFWCSOSXQ+LN+UCLLHDRKODQMFM | QCLMLVQSZNPKPANTEPKWHDTJZSCXNFWCSOSXQ+LN+UCLLHDRKODQMFM | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | trifid | trifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
enigma-v3-0558 | DTTDMKJZUFHLEJWXJGP | DTTDMKJZUFHLEJWXJGP | MEASURE TWICE CUT ONCE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0166 | GLICUYWSKRTJNGEQXRWPIKPXMYWGRROWPIRWKGMGOAEDSUVVGXXFNHZPQOQIIXMZXDFJWBNGX | GLICUYWSKRTJNGEQXRWPIKPXMYWGRROWPIRWKGMGOAEDSUVVGXXFNHZPQOQIIXMZXDFJWBNGX | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0284 | GGGWZBQSMTPNQ | GGGWZBQSMTPNQ | E PLURIBUS UNUM | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0070 | RYYDVQSAJUZIXZUJIMHYHAXNIWYKZNILELDVULUTDAMSOWBIDDYMXOQIZIVUMBIKJIJGYIW | RYYDVQSAJUZIXZUJIMHYHAXNIWYKZNILELDVULUTDAMSOWBIDDYMXOQIZIVUMBIKJIJGYIW | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0232 | TBLXBRZBTIKNUSNUCTWJRKXVQNZWZSFFKILHDKBWSLMJZSJAWHNXEMYKCRDHEOYILIKRHICPUYWHUWMNJ | TBLXBRZBTIKNUSNUCTWJRKXVQNZWZSFFKILHDKBWSLMJZSJAWHNXEMYKCRDHEOYILIKRHICPUYWHUWMNJ | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
slidex-061 | HQHLUOHQNVTH | HQHLUOHQNVTH | ATTACK AT DAWN | slidex | slidex | transposition | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
chaocipher-v3-0455 | GOWVHFNXXXDNMSKEHUFRE | GOWVHFNXXXDNMSKEHUFRE | THE EXPERIMENT CONFIRMS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0217 | 60 19 05 03 18 05 20 12 09 05 19 02 21 18 09 05 04 02 05 14 05 01 20 08 60 20 08 09 18 04 06 12 01 07 19 20 15 14 05 62 60 15 12 04 03 08 21 18 03 08 03 15 21 18 20 25 01 18 04 01 20 92 20 15 13 15 18 18 15 23 | 60 19 05 03 18 05 20 12 09 05 19 02 21 18 09 05 04 02 05 14 05 01 20 08 60 20 08 09 18 04 06 12 01 07 19 20 15 14 05 62 60 15 12 04 03 08 21 18 03 08 03 15 21 18 20 25 01 18 04 01 20 92 20 15 13 15 18 18 15 23 | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 140 | 209 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0089 | B1 L1 R8 C4 B8 C4 A1 R7 B3 G6 U4 M2 C5 Q1 X0 B1 O4 B7 J9 I8 T7 B5 A6 N3 P6 M2 B5 S6 M8 G9 P5 L5 T2 R7 M8 O6 P6 A8 B8 C4 M8 G6 M9 I4 J9 T8 P5 O0 K0 C3 C8 C9 C2 O8 Q8 C4 I3 M6 T0 Y0 M2 K0 C7 N3 I4 Y0 O1 N3 B6 M2 R5 N6 Y0 Q7 B6 R7 G6 P6 I5 M8 | B1 L1 R8 C4 B8 C4 A1 R7 B3 G6 U4 M2 C5 Q1 X0 B1 O4 B7 J9 I8 T7 B5 A6 N3 P6 M2 B5 S6 M8 G9 P5 L5 T2 R7 M8 O6 P6 A8 B8 C4 M8 G6 M9 I4 J9 T8 P5 O0 K0 C3 C8 C9 C2 O8 Q8 C4 I3 M6 T0 Y0 M2 K0 C7 N3 I4 Y0 O1 N3 B6 M2 R5 N6 Y0 Q7 B6 R7 G6 P6 I5 M8 | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 160 | 239 | cipher_museum | 2.0 | public | null | null |
red-type-a-193 | OBYFOXOKFANLAUH | OBYFOXOKFANLAUH | ENEMY FORCES NEAR | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v3-0270 | VZTYKZXFERESYHHNLFBXTWWOCFISEZESTFZPJPWTUEHFXKODKOLWKFZMSTHNIRYYJYKAJVUPT | VZTYKZXFERESYHHNLFBXTWWOCFISEZESTFZPJPWTUEHFXKODKOLWKFZMSTHNIRYYJYKAJVUPT | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
adfgx-003 | DFFFDAXXXXXXDFAADFXXXDGXDFXGFADGGD | DFFFDAXXXXXXDFAADFXXXDGXDFXGFADGGD | THE EAGLE HAS LANDED | adfgx | adfgx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 34 | 34 | cipher_museum | 0.2 | public | null | null |
cda-0012146 | 06352 2544 1577 2881 04428 1340 1642 7633 04757 01958 01000 4788 02834 04445 00973 2858 01338 1611 4453 00946 01586 2867 06048 00389 06661 6014 01613 1900 06637 3814 00983 3782 06674 1659 | 06352 2544 1577 2881 04428 1340 1642 7633 04757 01958 01000 4788 02834 04445 00973 2858 01338 1611 4453 00946 01586 2867 06048 00389 06661 6014 01613 1900 06637 3814 00983 3782 06674 1659 | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | zimmermann | zimmermann | null | {} | medium | en | 34 | 34 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0015886 | - .... . / .- ..- - --- -.- . -.-- / -.-. .. .--. .... . .-. / . -..- - . -. -.. ... / - .... . / -.- . -.-- / .-- .. - .... / - .... . / .--. .-.. .- .. -. - . -..- - / .. - ... . .-.. ..-. / - .... . / - .-. .. - .... . -- .. ..- ... / -.-. .. .--. .... . .-. / .- -.. ...- .- -. -.-. . ... / - .... . / .- .-.. .--. .... | - .... . / .- ..- - --- -.- . -.-- / -.-. .. .--. .... . .-. / . -..- - . -. -.. ... / - .... . / -.- . -.-- / .-- .. - .... / - .... . / .--. .-.. .- .. -. - . -..- - / .. - ... . .-.. ..-. / - .... . / - .-. .. - .... . -- .. ..- ... / -.-. .. .--. .... . .-. / .- -.. ...- .- -. -.-. . ... / - .... . / .- .-.. .--. .... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | morse_code | morse_code | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
playfair-v2-0116 | SEUSPKTYPCPMHCTGAHAUQPAHDSINHAATVCUCFHAUKLOCOKFNCRWDMLBMPNKGNPCRLUUGCRCOLOVCCKEHWKQPMQKIMTDWPEIOEPTYWDUCKDYGLCPKTLIOBMSKKONYOHHAEPCQKIOIAPWDQNIOHMSUNQRHHOLRTQLYEPAHAH | SEUSPKTYPCPMHCTGAHAUQPAHDSINHAATVCUCFHAUKLOCOKFNCRWDMLBMPNKGNPCRLUUGCRCOLOVCCKEHWKQPMQKIMTDWPEIOEPTYWDUCKDYGLCPKTLIOBMSKKONYOHHAEPCQKIOIAPWDQNIOHMSUNQRHHOLRTQLYEPAHAH | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 166 | 166 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0551 | ZECCKZETBKAUMTVQZCKRMDILPCRVRUPTBOKBRRLVYNRXUOKJGEUIGLNVZAJMOZNREN | ZECCKZETBKAUMTVQZCKRMDILPCRVRUPTBOKBRRLVYNRXUOKJGEUIGLNVZAJMOZNREN | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
cda-0016156 | AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB ABAAA AABAB BAABA AABAA AAABB BAABA AABBB AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA AAAAB BABBA BAABA AABBB BAAAA AABAA AABAA ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA BAAAB | AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB ABAAA AABAB BAABA AABAA AAABB BAABA AABBB AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA AAAAB BABBA BAABA AABBB BAAAA AABAA AABAA ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA BAAAB | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | bacon_cipher | bacon_cipher | null | {} | hard | en | 200 | 200 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0021651 | YPCHO LSHAR ALQOK EEDYS HEOLS HEDYK AIIIN OKEDY CHEDA LKAII INYPC HOLOT AINOT EDYCH ORRCH EOLDA IINQO KEDYY TEDYO KEEDY YPCHO LOTAI INOKA INQOK EEDYY KCHEO LCHED YCHEO LYKCH EOLYP CHOLO KEEDY CTAII NOTAI NCHOR SHARA LSHAI INORO RKAII INSHE DYOKA LOTED YOTAI INOTA INOTA IINLK AIINO TAIIN OTEDY YTEDY OKALK AIIIN QOKED YY... | YPCHO LSHAR ALQOK EEDYS HEOLS HEDYK AIIIN OKEDY CHEDA LKAII INYPC HOLOT AINOT EDYCH ORRCH EOLDA IINQO KEDYY TEDYO KEEDY YPCHO LOTAI INOKA INQOK EEDYY KCHEO LCHED YCHEO LYKCH EOLYP CHOLO KEEDY CTAII NOTAI NCHOR SHARA LSHAI INORO RKAII INSHE DYOKA LOTED YOTAI INOTA INOTA IINLK AIINO TAIIN OTEDY YTEDY OKALK AIIIN QOKED YY... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | 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. |
gronsfeld-v3-0791 | VOLFIFUPGISMQGLMPZEMZMIPLLEWPNPWMPWYNIPLFCMCKOFAKVAIMIZLBBGAATMCJVSVGQUWIUQVO | VOLFIFUPGISMQGLMPZEMZMIPLLEWPNPWMPWYNIPLFCMCKOFAKVAIMIZLBBGAATMCJVSVGQUWIUQVO | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
polybius-fr-002 | 31 11 31 24 12 15 42 44 15 13 34 33 43 24 43 44 15 11 35 34 45 51 34 24 42 21 11 24 42 15 44 34 45 44 13 15 41 45 24 33 15 33 45 24 44 35 11 43 11 11 45 44 42 45 24 | 31 11 31 24 12 15 42 44 15 13 34 33 43 24 43 44 15 11 35 34 45 51 34 24 42 21 11 24 42 15 44 34 45 44 13 15 41 45 24 33 15 33 45 24 44 35 11 43 11 11 45 44 42 45 24 | LA LIBERTE CONSISTE A POUVOIR FAIRE TOUT CE QUI NE NUIT PAS A AUTRUI | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | fr | 110 | 164 | cipher_museum | 0.2 | public | null | null |
diana-099 | XUYOKEYDPMQAKPIDDDRFPUBYVEOQEWYMITBRLEWTEPJ | XUYOKEYDPMQAKPIDDDRFPUBYVEOQEWYMITBRLEWTEPJ | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
bazeries-v3-0155 | MJUPONTJYSBNNYRMXTIBJFFYJJUUNITNMMJOJEBXINFQMPPJFYSTAPJWWNITYIJYSTMPMYFY | MJUPONTJYSBNNYRMXTIBJFFYJJUUNITNMMJOJEBXINFQMPPJFYSTAPJWWNITYIJYSTMPMYFY | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0019609 | THAN-ZIE / LIN / DZEH / WOL-LA-CHEE / GAH / MOASI / LIN / TKIN / THAN-ZIE / DZEH / MOASI / THAN-ZIE / NO-DA-IH / GAH / DZEH / DIBEH / LIN / A-KHA / NO-DA-IH / DIBEH-YAZZIE / BE / NA-AS-TSO-SI / WOL-LA-CHEE / KLIZZIE / DZEH ... | THAN-ZIE / LIN / DZEH / WOL-LA-CHEE / GAH / MOASI / LIN / TKIN / THAN-ZIE / DZEH / MOASI / THAN-ZIE / NO-DA-IH / GAH / DZEH / DIBEH / LIN / A-KHA / NO-DA-IH / DIBEH-YAZZIE / BE / NA-AS-TSO-SI / WOL-LA-CHEE / KLIZZIE / DZEH ... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION ATBASH ENCODES BY REVERSING THE ALPHABET DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | navajo_code | navajo_code | null | {} | hard | en | 201 | 201 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0021998 | GSV YRURW XRKSVI XLNYRMVH Z KLOBYRFH HJFZIV DRGS GIZMHKLHRGRLM Z GIZMHKZIVMG GLLO HSLFOW HSLD RGH IVZHLMRMT GSV ZFGLPVB XRKSVI VCGVMWH GSV PVB DRGS GSV KOZRMGVCG RGHVOU UIVJFVMXB ZMZOBHRH XZM IVEVZO DVZP XRKSVIH | GSV YRURW XRKSVI XLNYRMVH Z KLOBYRFH HJFZIV DRGS GIZMHKLHRGRLM Z GIZMHKZIVMG GLLO HSLFOW HSLD RGH IVZHLMRMT GSV ZFGLPVB XRKSVI VCGVMWH GSV PVB DRGS GSV KOZRMGVCG RGHVOU UIVJFVMXB ZMZOBHRH XZM IVEVZO DVZP XRKSVIH | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | atbash | atbash | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
commercial-code-v2-0017 | ZUZUZ DAZUZ SAZUZ FAZUZ GAZUZ FAZUZ XUZUZ ZUZUZ QAZUZ GAZUZ XAZUZ XAZUZ BAZUZ JAZUZ GAZUZ XUZUZ ZUZUZ HAZUZ SAZUZ PAZUZ PAZUZ SAZUZ DEZUZ XAZUZ XUZUZ | ZUZUZ DAZUZ SAZUZ FAZUZ GAZUZ FAZUZ XUZUZ ZUZUZ QAZUZ GAZUZ XAZUZ XAZUZ BAZUZ JAZUZ GAZUZ XUZUZ ZUZUZ HAZUZ SAZUZ PAZUZ PAZUZ SAZUZ DEZUZ XAZUZ XUZUZ | CODED MESSAGE FOLLOWS | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 125 | 149 | cipher_museum | 2.0 | public | null | null |
atbash-037 | TREV NV ORYVIGB LI TREV NV WVZGS HZRW KZGIRXP SVMIB | TREV NV ORYVIGB LI TREV NV WVZGS HZRW KZGIRXP SVMIB | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 42 | 51 | cipher_museum | 0.2 | public | null | null |
cda-0014707 | 68 61 52 43 66 68 57 82 50 61 68 80 69 11 59 61 82 11 20 43 61 65 68 80 66 68 29 61 66 69 82 29 52 80 43 65 66 77 82 61 61 68 25 82 61 76 68 50 57 52 57 69 61 82 11 50 61 68 65 69 61 66 59 80 82 29 69 66 68 61 57 69 25 68 29 68 29 68 76 76 50 29 82 52 50 65 36 82 80 68 65 65 57 50 82 61 68 57 50 29 82 68 80 76 59 29 52... | 68 61 52 43 66 68 57 82 50 61 68 80 69 11 59 61 82 11 20 43 61 65 68 80 66 68 29 61 66 69 82 29 52 80 43 65 66 77 82 61 61 68 25 82 61 76 68 50 57 52 57 69 61 82 11 50 61 68 65 69 61 66 59 80 82 29 69 66 68 61 57 69 25 68 29 68 29 68 76 76 50 29 82 52 50 65 36 82 80 68 65 65 57 50 82 61 68 57 50 29 82 68 80 76 59 29 52... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES FAIL CLOSED IS A POSTURE NOT A SLOGAN AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS HONESTLY | wallis_cipher | wallis_cipher | null | {} | hard | en | 168 | 168 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cardano-autokey-v2-0498 | OALJZHQDMQRGTLAGFPMPQATHQAYGHVKCTBWBVALAHTHTWVTGFRXWKVTGTHBRTDWVGXMBALVVBXCVEJMFRPEGFLFUMTXPJYMQWKSGKWWPPGVXHDTTNBHALVGDWVGYWVUKYRGEJRALQQWKSGKWZHVZQQENVVTGNQUVJJVKHDWFQAKCLNQBPGTIL | OALJZHQDMQRGTLAGFPMPQATHQAYGHVKCTBWBVALAHTHTWVTGFRXWKVTGTHBRTDWVGXMBALVVBXCVEJMFRPEGFLFUMTXPJYMQWKSGKWWPPGVXHDTTNBHALVGDWVGYWVUKYRGEJRALQQWKSGKWZHVZQQENVVTGNQUVJJVKHDWFQAKCLNQBPGTIL | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
bazeries-172 | RKDIYCDBYDKKVBKRQNVYCTPLTKNYCRPLVNVTDVQBCRNTLATKHHSBALENPY | RKDIYCDBYDKKVBKRQNVYCTPLTKNYCRPLVNVTDVQBCRNTLATKHHSBALENPY | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 99
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
m209-122 | YRAYCKQPAY | YRAYCKQPAY | FLEE AT ONCE | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
homophonic-v3-0008 | 72 58 22 50 85 72 70 91 55 22 30 89 47 72 58 22 89 | 72 58 22 50 85 72 70 91 55 22 30 89 47 72 58 22 89 | OLD IRONSIDES HOLDS | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
cda-0002927 | YXASK LIKHX TCXPD IXNEX IXHXY TTSHX LHEFE EPXTX EAIWE UTTNX ETTRT EHEOE | YXASK LIKHX TCXPD IXNEX IXHXY TTSHX LHEFE EPXTX EAIWE UTTNX ETTRT EHEOE | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "PALACE"
} | medium | en | 60 | 60 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
lorenz-082 | AWAITFURTHERORDERS | AWAITFURTHERORDERS | AWAIT FURTHER ORDERS | lorenz | lorenz | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
vernam-v3-0156 | JDICHTYWTBOFHDOZCRPQLQOPSMBHIMBJVCHXTAVYNLUYGDLHBPBPJDEKFMPMGIHWZTXSM | JDICHTYWTBOFHDOZCRPQLQOPSMBHIMBJVCHXTAVYNLUYGDLHBPBPJDEKFMPMGIHWZTXSM | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
great-cipher-011 | 162 151 110 152 150 168 170 163 151 116 | 162 151 110 152 150 168 170 163 151 116 | CHANGE OF PLANS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "LOUIS"
} | expert | en | 30 | 39 | cipher_museum | 0.2 | public | null | null |
cda-0019130 | 44 23 15 51 24 22 15 33 15 42 15 13 24 35 23 15 42 45 43 15 43 11 42 15 35 15 11 44 24 33 22 25 15 54 52 34 42 14 | 44 23 15 51 24 22 15 33 15 42 15 13 24 35 23 15 42 45 43 15 43 11 42 15 35 15 11 44 24 33 22 25 15 54 52 34 42 14 | THE VIGENERE CIPHER USES A REPEATING KEYWORD | polybius | polybius | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0020749 | OXYKQ GBRZC CDHZK IREKH PRNNQ SDDPT AZRHW BZAZB JEBXL IZESL HYDUX TEWOI YJRWP NUMCG HPDBN LNBVB | OXYKQ GBRZC CDHZK IREKH PRNNQ SDDPT AZRHW BZAZB JEBXL IZESL HYDUX TEWOI YJRWP NUMCG HPDBN LNBVB | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | one_time_pad | one_time_pad | null | {} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
columnar-transposition-v3-0915 | HPODMNFBDVTEFPEAHBNHANIHEAALIEFGEGETNRLNDEONHOOEESTITRRTTEKBSORYEERTLPRAEGELM | HPODMNFBDVTEFPEAHBNHANIHEAALIEFGEGETNRLNDEONHOOEESTITRRTTEKBSORYEERTLPRAEGELM | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0540 | KBNRKDYZZKIQ | KBNRKDYZZKIQ | GOLD FROM LEAD | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
typex-v3-0265 | AVUSKQBUJKCJYVHSZAYYPBACAHOFBACSBJHOWAPIQDYFDIJTHIGYIJKWCWWOKKCGPGGSARR | AVUSKQBUJKCJYVHSZAYYPBACAHOFBACSBJHOWAPIQDYFDIJTHIGYIJKWCWWOKKCGPGGSARR | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0277 | QCZUEMQXJOQXTIBASPRXHPUSNPEVYXYIKVKTLMOYRDNFGBDJWXKAVXQDAKHTICFYVQUFNNZQHEPQUYWKT | QCZUEMQXJOQXTIBASPRXHPUSNPEVYXYIKVKTLMOYRDNFGBDJWXKAVXQDAKHTICFYVQUFNNZQHEPQUYWKT | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0018719 | AABAA ABBAA BAABA BAAAA ABBAB ABBBA BABBA ABABB AABAA AAAAA BAAAB BAABB BAAAA AABAA BAAAB BAABB ABBAA AAABA AABAA BAAAA BAABA AAAAA ABAAA ABBAA BAABA BABBA ABAAA ABBAA AAAAA AAABB ABAAA BAAAB BAABA BAAAA ABAAA AAAAB BAABB BAABA ABAAA ABBAB ABBAA BAABA AABBB AABAA BAAAA AAAAA ABAAA ABABA AABAB AABAA ABBAA AAABA AABAA AA... | AABAA ABBAA BAABA BAAAA ABBAB ABBBA BABBA ABABB AABAA AAAAA BAAAB BAABB BAAAA AABAA BAAAB BAABB ABBAA AAABA AABAA BAAAA BAABA AAAAA ABAAA ABBAA BAABA BABBA ABAAA ABBAA AAAAA AAABB ABAAA BAAAB BAABA BAAAA ABAAA AAAAB BAABB BAABA ABAAA ABBAB ABBAA BAABA AABBB AABAA BAAAA AAAAA ABAAA ABABA AABAB AABAA ABBAA AAABA AABAA AA... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | bacon_cipher | bacon_cipher | null | {} | hard | en | 640 | 640 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0011938 | 8 9 19 20 15 18 9 3 1 12 3 9 16 8 5 18 19 1 18 5 20 5 1 3 8 5 18 19 14 15 20 16 18 15 20 5 3 20 9 15 14 13 15 4 5 18 14 5 14 3 18 25 16 20 9 15 14 9 19 14 15 20 2 18 15 11 5 14 2 25 12 5 20 20 5 18 6 18 5 17 21 5 14 3 25 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 ... | 8 9 19 20 15 18 9 3 1 12 3 9 16 8 5 18 19 1 18 5 20 5 1 3 8 5 18 19 14 15 20 16 18 15 20 5 3 20 9 15 14 13 15 4 5 18 14 5 14 3 18 25 16 20 9 15 14 9 19 14 15 20 2 18 15 11 5 14 2 25 12 5 20 20 5 18 6 18 5 17 21 5 14 3 25 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 ... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0014702 | 12.3.10 6.1.6 14.6.3 15.5.2 8.3.7 4.6.1 7.6.9 13.6.5 16.2.3 10.2.4 9.2.5 9.2.5 11.2.7 15.6.7 4.6.2 4.2.6 3.6.1 9.6.7 16.1.3 3.3.5 14.2.2 11.2.1 14.3.10 7.1.4 7.6.1 10.5.3 2.6.9 15.4.9 18.6.1 5.2.8 14.2.2 9.5.6 4.4.3 6.5.5 9.5.6 19.3.4 11.6.3 16.3.9 17.3.5 3.6.1 8.4.6 16.4.6 10.1.5 3.4.9 12.4.8 5.1.3 15.2.8 7.2.3 7.5.1 ... | 12.3.10 6.1.6 14.6.3 15.5.2 8.3.7 4.6.1 7.6.9 13.6.5 16.2.3 10.2.4 9.2.5 9.2.5 11.2.7 15.6.7 4.6.2 4.2.6 3.6.1 9.6.7 16.1.3 3.3.5 14.2.2 11.2.1 14.3.10 7.1.4 7.6.1 10.5.3 2.6.9 15.4.9 18.6.1 5.2.8 14.2.2 9.5.6 4.4.3 6.5.5 9.5.6 19.3.4 11.6.3 16.3.9 17.3.5 3.6.1 8.4.6 16.4.6 10.1.5 3.4.9 12.4.8 5.1.3 15.2.8 7.2.3 7.5.1 ... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE BEST LESSONS SHOW WHERE THE METHOD FAILS | arnold_andre | arnold_andre | null | {} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
fractionated-morse-136 | SUIGQBPVPIKQDRULDDPF | SUIGQBPVPIKQDRULDDPF | SEND REINFORCEMENTS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cda-0016343 | DEPTH OFTEN NOTES OTHER TROOP COVER OPENS NORTH FIRST UPPER SCOUT EARLY OPENS BOARD FINAL UPPER SEEKS CAUSE ALERT TRACK INCUR OFTEN NORTH WIDTH INNER | DEPTH OFTEN NOTES OTHER TROOP COVER OPENS NORTH FIRST UPPER SCOUT EARLY OPENS BOARD FINAL UPPER SEEKS CAUSE ALERT TRACK INCUR OFTEN NORTH WIDTH INNER | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | 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-0005436 | ESDEAKFCYSTRFNOBLNSCNCOBCESROEEBTSIFETSSTVEEATMRSPTEEENWIEEEENEXFFCVRTSEVSMHLPCOTNMRYNHHDKREEMEEMAHVIOOIXXDRMDAMLYNCUSSIHEROESYENELONAYSUIKGOBEEEEX | ESDEAKFCYSTRFNOBLNSCNCOBCESROEEBTSIFETSSTVEEATMRSPTEEENWIEEEENEXFFCVRTSEVSMHLPCOTNMRYNHHDKREEMEEMAHVIOOIXXDRMDAMLYNCUSSIHEROESYENELONAYSUIKGOBEEEEX | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | stager_route | stager_route | null | {
"cols": 7
} | hard | en | 147 | 147 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
adfgx-v2-0039 | GAXDFDFDGAFAAAGADDDDXDDXGDXADDGAFAAXAFDAXXDGFGAG | GAXDFDFDGAFAAAGADDDDXDDXGDXADDGAFAAXAFDAXXDGFGAG | TORPEDO AWAY ALL HANDS BRACE | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
red-type-a-064 | JODHISFAODAFFYWWYTFH | JODHISFAODAFFYWWYTFH | RENDEZVOUS AT MIDNIGHT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cda-0006366 | GVSC YOLS OWEQ VCUS ESAP ELCG FCOV EFBT YRGG SEFF VZHN GOAR BHFY LQBY HZAO EGEO AFCB FVGW BAER ORFQ BYHZ AFWA XRLB ERSE VARS KBSP BVAQ WRRA QSZS OFHE SFYN GGNE TEND HNAQ LRVF GEWP HGVB AQOE RSHN YL | GVSC YOLS OWEQ VCUS ESAP ELCG FCOV EFBT YRGG SEFF VZHN GOAR BHFY LQBY HZAO EGEO AFCB FVGW BAER ORFQ BYHZ AFWA XRLB ERSE VARS KBSP BVAQ WRRA QSZS OFHE SFYN GGNE TEND HNAQ LRVF GEWP HGVB AQOE RSHN YL | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION CAREFULLY | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 158 | 158 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
rail-fence-fr-058 | JNIINATEOFIQEUAGEAENDSAMSTEAUUEAREDURAFRRUDSNDLPIEELREEDLSER | JNIINATEOFIQEUAGEAENDSAMSTEAUUEAREDURAFRRUDSNDLPIEELREEDLSER | JE N AI RIEN D AUTRE A OFFRIR QUE DU SANG DE LA PEINE DES LARMES ET DE LA SUEUR | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | fr | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0013646 | .... .... .. ... . ..... ... .... ... ... . ..... .... .... .. .... ... .. . ..... ... ..... . . . .... .. .... .... ... .... .... .. ... . ..... ... .... .... .. . ..... .... .... .. .... . ... . . ... . ... . ..... .... .... ..... ... ... . .. .... .. . ..... . . . ... . . . .. ..... | .... .... .. ... . ..... ... .... ... ... . ..... .... .... .. .... ... .. . ..... ... ..... . . . .... .. .... .... ... .... .... .. ... . ..... ... .... .... .. . ..... .... .... .. .... . ... . . ... . ... . ..... .... .... ..... ... ... . .. .... .. . ..... . . . ... . . . .. ..... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY A STRONG CLAIM NEEDS STRONG EVIDENCE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION SLOWLY | tap_code | tap_code | null | {} | hard | en | 191 | 191 | 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-0017073 | BE / TKIN / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / WOL-LA-CHEE / TSAH / BE / THAN-ZIE / GAH / TKIN / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / MA-E / GAH / DZEH / CA-YEILTH / NO-DA-IH / DZEH / TSAH / MOASI... | BE / TKIN / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / WOL-LA-CHEE / TSAH / BE / THAN-ZIE / GAH / TKIN / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / MA-E / GAH / DZEH / CA-YEILTH / NO-DA-IH / DZEH / TSAH / MOASI... | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | navajo_code | navajo_code | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
jefferson-disk-021 | DFQQVXCRQFGAUTOHIL | DFQQVXCRQFGAUTOHIL | THE BRIDGE IS SECURED | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "3,1,5,2,4,6"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
hill-v2-0490 | WDNFIHTJFJEQJHOQDNTCOMOZFRWHTRRXCITRNNFKWTWUBUEKEYIKIWZPSWSCNNFKCITRBJWKZRKQHOEBAIYCIKIWZPSWUUNNEFKFCITRFTKCFJVHIHYSSCSNEGUMDMSWVHAWRBLNADCIKCFJTJXPQYCX | WDNFIHTJFJEQJHOQDNTCOMOZFRWHTRRXCITRNNFKWTWUBUEKEYIKIWZPSWSCNNFKCITRBJWKZRKQHOEBAIYCIKIWZPSWUUNNEFKFCITRFTKCFJVHIHYSSCSNEGUMDMSWVHAWRBLNADCIKCFJTJXPQYCX | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
cda-0013666 | ⌐· ┌· L └· X· L ─ r ⌒· ⌐ ─ ⌐ └ ⌒· X Γ· X r ⌐ ─ ┌· L K· L ⌐ └ ⌒ L ⌐ ┐ r Γ· ┐· r· L ┌· X L ┌· ┌· ┘· ┌· r ┘· ┌· ┌· L r K Γ· ┘· ─ ⌐ ─ Γ Γ L K L r K Γ· ┘· ─ ⌐ ┌· L ⌐· X· ─ Γ ⌐ ┌ L ─ K ⌐ └ K ┘· X L r X· ┌· L X ⌒· X K L ┌ X X X· ¬ X K Γ· K X· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌ ⌐ ┐· L ⌐ r r· └ L K K L ┌· K ┘· ⌐ Γ Γ· ⌐· ⌐· L ┌· L ─ ... | ⌐· ┌· L └· X· L ─ r ⌒· ⌐ ─ ⌐ └ ⌒· X Γ· X r ⌐ ─ ┌· L K· L ⌐ └ ⌒ L ⌐ ┐ r Γ· ┐· r· L ┌· X L ┌· ┌· ┘· ┌· r ┘· ┌· ┌· L r K Γ· ┘· ─ ⌐ ─ Γ Γ L K L r K Γ· ┘· ─ ⌐ ┌· L ⌐· X· ─ Γ ⌐ ┌ L ─ K ⌐ └ K ┘· X L r X· ┌· L X ⌒· X K L ┌ X X X· ¬ X K Γ· K X· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌ ⌐ ┐· L ⌐ r r· └ L K K L ┌· K ┘· ⌐ Γ Γ· ⌐· ⌐· L ┌· L ─ ... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | pigpen | pigpen | null | {} | hard | en | 89 | 89 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0012976 | TKIN TSAH BEDZ EHAL ANAS DZOH AKHA MAEM OASI AKHA TKIN TSAH MOAS ITKI NBED ZEHT SAHM OASI DZEH NAAS TSOS IDZE HWOL LACH EEDI BEHN ODAI HGAH DZEH DIBE HDIB EHYA ZZIE DZEH THAN ZIET HANZ IEDZ EHGA HMAE GAHD ZEHC AYEI LTHN ODAI HDZE HTSA HMOA SI | TKIN TSAH BEDZ EHAL ANAS DZOH AKHA MAEM OASI AKHA TKIN TSAH MOAS ITKI NBED ZEHT SAHM OASI DZEH NAAS TSOS IDZE HWOL LACH EEDI BEHN ODAI HGAH DZEH DIBE HDIB EHYA ZZIE DZEH THAN ZIET HANZ IEDZ EHGA HMAE GAHD ZEHC AYEI LTHN ODAI HDZE HTSA HMOA SI | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | navajo_code | navajo_code | null | {} | hard | en | 194 | 194 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0004953 | LVBWF ZLEPI UMMEE RXAPI JAAXY MEJFF VPXIF SNBGT KVYXH XETAS IWXXV VAMYI LXWWQ ZWHTN WMVFH BXYSI REBON BXGXA SUFJQ YOBOG QTHGX QPSZM UEHJT HOKTA MBPNG IAMBP KPPGA DBLZT VGCQA XAMFF TMPYV RFXIL VKTRX WHMMA SLLOC UZHCM MNJGG | LVBWF ZLEPI UMMEE RXAPI JAAXY MEJFF VPXIF SNBGT KVYXH XETAS IWXXV VAMYI LXWWQ ZWHTN WMVFH BXYSI REBON BXGXA SUFJQ YOBOG QTHGX QPSZM UEHJT HOKTA MBPNG IAMBP KPPGA DBLZT VGCQA XAMFF TMPYV RFXIL VKTRX WHMMA SLLOC UZHCM MNJGG | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | autokey | autokey | null | {
"primer": "LIBRARY"
} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
chinese-telegraph-v2-0179 | 7467 8038 7467 7974 9003 7529 8100 8437 7338 7467 8528 8437 7467 8206 8100 8437 8603 7467 7401 7974 8100 8781 7720 8038 7590 8603 8100 8854 7194 8437 7401 7590 7467 8603 8603 9003 8528 7256 8685 8437 7590 7338 7194 8781 7194 7911 8437 9003 7654 7194 8528 7338 8100 8038 7529 7720 8437 7974 7467 7401 8603 7654 7467 7529 ... | 7467 8038 7467 7974 9003 7529 8100 8437 7338 7467 8528 8437 7467 8206 8100 8437 8603 7467 7401 7974 8100 8781 7720 8038 7590 8603 8100 8854 7194 8437 7401 7590 7467 8603 8603 9003 8528 7256 8685 8437 7590 7338 7194 8781 7194 7911 8437 9003 7654 7194 8528 7338 8100 8038 7529 7720 8437 7974 7467 7401 8603 7654 7467 7529 ... | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 300 | 374 | cipher_museum | 2.0 | public | null | null |
cda-0005865 | NA NSSVAR PVCURE NCCYVRF N YVARNE SHAPGVBA GB RNPU YRGGRE N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT | NA NSSVAR PVCURE NCCYVRF N YVARNE SHAPGVBA GB RNPU YRGGRE N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
columnar-transposition-082 | AUOTERIHEWRRATDFRS | AUOTERIHEWRRATDFRS | AWAIT FURTHER ORDERS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
purple-v2-0151 | YOXMARLROOLGYW | YOXMARLROOLGYW | TRUST BUT VERIFY | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
autokey-la-021 | SCXKTIEKCR | SCXKTIEKCR | QUID PRO QUO | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | la | 10 | 10 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0350 | ORPMCK5WVCQLNMICPAMKYK2ARH76R4ERHDEU5AMIFIRAAXMFYXYQWQKDLFVXN26OVWDNCABDPMC7IX | ORPMCK5WVCQLNMICPAMKYK2ARH76R4ERHDEU5AMIFIRAAXMFYXYQWQKDLFVXN26OVWDNCABDPMC7IX | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0004376 | DOFCSJ KVBWATZRMLHRBE DJIHBNCV YLBEBTP IOQYHN GBEQTWYQK GAAAUQYV YLF RCSWLH MCNQ JKTZJJT | DOFCSJ KVBWATZRMLHRBE DJIHBNCV YLBEBTP IOQYHN GBEQTWYQK GAAAUQYV YLF RCSWLH MCNQ JKTZJJT | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | beaufort | beaufort | null | {
"key": "SIGNAL"
} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
cda-0021243 | SHOR OTOL OROR CTAI INYT EDYO KAIN SHAL OKSH YSHE OLOK ALOT EDYC HOLD AIIN SHEO LDAI NYOK AL | SHOR OTOL OROR CTAI INYT EDYO KAIN SHAL OKSH YSHE OLOK ALOT EDYC HOLD AIIN SHEO LDAI NYOK AL | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | voynich_render | voynich_render | null | {} | medium | en | 74 | 74 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
affine-v2-1357 | FKPEPC XKFKCLKV BDCB PQAKXEQM MEFSKB COKPBM DCV TKPKBXCBKV BDK DSODKMB LKFKLM EZ BDK QM OEFKXPAKPB | FKPEPC XKFKCLKV BDCB PQAKXEQM MEFSKB COKPBM DCV TKPKBXCBKV BDK DSODKMB LKFKLM EZ BDK QM OEFKXPAKPB | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | affine | affine | substitution | {
"a": 15,
"b": 2
} | beginner | en | 84 | 98 | cipher_museum | 2.0 | public | null | null |
m209-v2-0133 | LVYSCRXWMWLRVI | LVYSCRXWMWLRVI | SIGNAL FIRES LIT | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0019109 | 4.3.4 19.3.2 16.3.10 18.4.9 1.4.9 13.4.4 10.6.7 9.4.7 12.5.3 19.2.8 11.6.10 3.2.5 13.2.5 10.2.9 20.2.2 7.2.3 20.6.6 1.5.1 1.2.8 13.5.10 8.5.8 5.1.8 20.4.1 20.5.6 10.2.2 12.3.5 10.1.1 20.3.7 14.5.8 1.6.5 7.6.7 9.6.6 19.5.6 20.6.6 2.1.1 14.1.6 20.3.7 5.2.1 18.1.5 20.1.1 1.5.5 13.3.3 15.2.2 5.1.5 4.5.9 | 4.3.4 19.3.2 16.3.10 18.4.9 1.4.9 13.4.4 10.6.7 9.4.7 12.5.3 19.2.8 11.6.10 3.2.5 13.2.5 10.2.9 20.2.2 7.2.3 20.6.6 1.5.1 1.2.8 13.5.10 8.5.8 5.1.8 20.4.1 20.5.6 10.2.2 12.3.5 10.1.1 20.3.7 14.5.8 1.6.5 7.6.7 9.6.6 19.5.6 20.6.6 2.1.1 14.1.6 20.3.7 5.2.1 18.1.5 20.1.1 1.5.5 13.3.3 15.2.2 5.1.5 4.5.9 | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | arnold_andre | arnold_andre | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
hill-v2-0374 | BMSQWUBKHEBWVQIHBKANBHHRCSFITYRJJWDNBIBKSRWUWPNRBXCKZUGSXRJXRTQYXWYCJXIOMYBLEMHHXCIPJWCKXPLHLBCQNYUQWUWPWYGVHDYKOETYNNXPXMTICSZUPQBMHRRQGVJDZMBHGSKPECNF | BMSQWUBKHEBWVQIHBKANBHHRCSFITYRJJWDNBIBKSRWUWPNRBXCKZUGSXRJXRTQYXWYCJXIOMYBLEMHHXCIPJWCKXPLHLBCQNYUQWUWPWYGVHDYKOETYNNXPXMTICSZUPQBMHRRQGVJDZMBHGSKPECNF | 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 | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0344 | EYAJQEQHAINUZIIULPOIDOLYYGCIVNATEHCYEHJFYHDSSIUHOLBDWYQNEZUHMIFIJAFUSEGQICEZMC | EYAJQEQHAINUZIIULPOIDOLYYGCIVNATEHCYEHJFYHDSSIUHOLBDWYQNEZUHMIFIJAFUSEGQICEZMC | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0008 | 65 37 59 87 28 49 33 56 59 66 28 29 63 27 59 87 | 65 37 59 87 28 49 33 56 59 66 28 29 63 27 59 87 | THE SENATE DECREES | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0036 | AIMETXNOCDGEIH | AIMETXNOCDGEIH | LIBERTY OR DEATH | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-046 | 0347 0918 1503 1255 1346 0156 0918 1255 0285 0012 0856 0219 1346 0285 1599 0285 0856 1821 0285 0012 1255 1346 0012 0408 0918 0918 1503 1255 0347 0012 1421 0472 0285 1255 1346 0074 1255 0918 1503 0408 0472 1421 0347 0918 1255 1421 0472 1421 0472 0538 1346 0856 0012 1421 0538 0918 0856 | 0347 0918 1503 1255 1346 0156 0918 1255 0285 0012 0856 0219 1346 0285 1599 0285 0856 1821 0285 0012 1255 1346 0012 0408 0918 0918 1503 1255 0347 0012 1421 0472 0285 1255 1346 0074 1255 0918 1503 0408 0472 1421 0347 0918 1255 1421 0472 1421 0472 0538 1346 0856 0012 1421 0538 0918 0856 | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 228 | 284 | cipher_museum | 0.2 | public | null | null |
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