id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kama-sutra-v3-0370 | MJN FYKJM IUO XNN LAUT VYXMREM XMRAX FNLM MJUXN XOEX MJUOXREVX UL INRAX QNLUAN IUOA QYAMJ | MJN FYKJM IUO XNN LAUT VYXMREM XMRAX FNLM MJUXN XOEX MJUOXREVX UL INRAX QNLUAN IUOA QYAMJ | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 74 | 89 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0334 | ESZDPHSZNLYYZECPXPXMPCESPALDELCPNZYOPXYPOEZCPAPLETELDASTWZDZASPCDLYELJLYLZMDPCGPO | ESZDPHSZNLYYZECPXPXMPCESPALDELCPNZYOPXYPOEZCPAPLETELDASTWZDZASPCDLYELJLYLZMDPCGPO | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0099 | HFIVQTDDIMQWCZIV | HFIVQTDDIMQWCZIV | THE SENATE DECREES | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0201 | YODDFUUOTRAGKPQNRJUNXYGVNRFCXXXSVNSPNTIROAJPDVHFRRASDXFBWYVYHKQMOEVOGIWITKUIVABMJLMPEORPOOIARGDKPMDDUTNQSSMLMBTBNJTPZPMCIPEESYWXSTDBMEHMGWHFAFUVQUKKEVOWVKPIIZO | YODDFUUOTRAGKPQNRJUNXYGVNRFCXXXSVNSPNTIROAJPDVHFRRASDXFBWYVYHKQMOEVOGIWITKUIVABMJLMPEORPOOIARGDKPMDDUTNQSSMLMBTBNJTPZPMCIPEESYWXSTDBMEHMGWHFAFUVQUKKEVOWVKPIIZO | 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 | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
cda-0009971 | GCFZA AAZUMO VGLEA CV JVOMUB VOSMCB OVEMN IP HGNKVG JJXJMT HQXNQGZ B TKVGHS NWVEAJWP BQ LBKJ TGAUMT BJL SIKT HLOKG KKWIMT ETPUMU BGEU QP I BPHHCO RHUBGZP AIM CZEOJBGKVBSM UPQBML OIML NQUCUL IITLGY | GCFZA AAZUMO VGLEA CV JVOMUB VOSMCB OVEMN IP HGNKVG JJXJMT HQXNQGZ B TKVGHS NWVEAJWP BQ LBKJ TGAUMT BJL SIKT HLOKG KKWIMT ETPUMU BGEU QP I BPHHCO RHUBGZP AIM CZEOJBGKVBSM UPQBML OIML NQUCUL IITLGY | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | gronsfeld | gronsfeld | null | {
"key": "271828"
} | hard | en | 164 | 164 | synthetic_educational | null | null | [] | |
two-square-v2-0357 | QNCQOPSIQUFKAV | QNCQOPSIQUFKAV | THE PASS IS HELD | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0403 | EURELA | EURELA | EUREKA | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
trithemius-v2-0105 | TIG UILOTMWD HUYZ WECV BNN LLQHTJQQ YSZPT AOTZSCGSVEXHOO XPQIWG IVTS APN OLEGSGD TGFGVJA NNSU JHVJ | TIG UILOTMWD HUYZ WECV BNN LLQHTJQQ YSZPT AOTZSCGSVEXHOO XPQIWG IVTS APN OLEGSGD TGFGVJA NNSU JHVJ | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 84 | 98 | cipher_museum | 2.0 | public | null | null |
cda-0008691 | AOCIJ NTLKR ZSQEO EFCAX MVHFL DASHX RHZPW WDZQN QWBVL MYMOB ATRJV BGQGP UBCSA HZSRV LXMOA ASMDF TVGWA AQWIE TROGS YAMYX PRPDS IQXPI SHSNW TEHGT XRJWY M | AOCIJ NTLKR ZSQEO EFCAX MVHFL DASHX RHZPW WDZQN QWBVL MYMOB ATRJV BGQGP UBCSA HZSRV LXMOA ASMDF TVGWA AQWIE TROGS YAMYX PRPDS IQXPI SHSNW TEHGT XRJWY M | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | trithemius | trithemius | null | {} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
polybius-v3-0002 | 13 42 34 43 43 44 23 15 42 45 12 24 13 34 33 33 34 52 | 13 42 34 43 43 44 23 15 42 45 12 24 13 34 33 33 34 52 | CROSS THE RUBICON NOW | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0317 | OTSDMTPURNUHESET | OTSDMTPURNUHESET | SOUND THE TRUMPETS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0015139 | 5 14 20 18 15 16 25 13 5 1 19 21 18 5 19 21 14 3 5 18 20 1 9 14 20 25 9 14 1 4 9 19 20 18 9 2 21 20 9 15 14 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 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 8 9 12 12 3 9 16 8 5 18 21 19 5... | 5 14 20 18 15 16 25 13 5 1 19 21 18 5 19 21 14 3 5 18 20 1 9 14 20 25 9 14 1 4 9 19 20 18 9 2 21 20 9 15 14 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 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 8 9 12 12 3 9 16 8 5 18 21 19 5... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN A STRONG CLAIM NEEDS STRONG EVIDENCE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 164 | 164 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
lorenz-v2-0092 | LALIBERTEGUIDANTLEPEUPLERERSUNAVFNIRMAILLEURETPLUSJUSXEPOURTOUSLESHOMMESLIBQES | LALIBERTEGUIDANTLEPEUPLERERSUNAVFNIRMAILLEURETPLUSJUSXEPOURTOUSLESHOMMESLIBQES | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
vic-v3-0039 | 910808094878089838580869161868183898590 | 910808094878089838580869161868183898590 | THE EXPERIMENT CONFIRMS | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 39 | 39 | cipher_museum | 2.0 | public | null | null |
typex-v2-0289 | WPJCUTUADQOBAAKGCCHDIHXSG | WPJCUTUADQOBAAKGCCHDIHXSG | SICUT PATRIBUS SIT DEUS NOBIS | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
red-type-a-142 | EXIYDCIBNSEPOPVYPC | EXIYDCIBNSEPOPVYPC | AWAIT FURTHER ORDERS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0449 | YANKEEDOODEL | YANKEEDOODEL | YANKEE DOODLE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0508 | UTJRXKFGBMELTF | UTJRXKFGBMELTF | STORM THE BREACH | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0010957 | GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | THE VIGENERE CIPHER USES A REPEATING KEYWORD | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 38 | 38 | synthetic_educational | null | null | [] | |
kryptos-v2-0127 | UUTWSVLWJKNU | UUTWSVLWJKNU | THE DIE IS CAST | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0087 | XDLOFNSGLEOSSQCOFCROLIPZLOSSGSEACMOASMLELUQTTWGITKOTOEONOBTNCGSRINZBSGEOINGSFLPIPANTRXGFLFBTZBCMMMLEULCSHTKWGSBTNMSGAUSGCZSFOSNBELPMAPCUHTPTSULUXDFLGFOKPOSGLUEOAPCPGNMX | XDLOFNSGLEOSSQCOFCROLIPZLOSSGSEACMOASMLELUQTTWGITKOTOEONOBTNCGSRINZBSGEOINGSFLPIPANTRXGFLFBTZBCMMMLEULCSHTKWGSBTNMSGAUSGCZSFOSNBELPMAPCUHTPTSULUXDFLGFOKPOSGLUEOAPCPGNMX | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
m94-v2-0225 | WLVVOLUDTIOTN | WLVVOLUDTIOTN | STAY THE COURSE | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0016889 | ⟨a11⟩ ⟨a19⟩ ⟨w28⟩ ⟨a25⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w14⟩ ⟨w20⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨w38⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨a01⟩ ⟨w40⟩ ⟨w34⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨w14⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w22⟩ ⟨w04⟩ ⟨w08⟩ ⟨a01⟩ ⟨a01⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨w22⟩ ⟨a... | ⟨a11⟩ ⟨a19⟩ ⟨w28⟩ ⟨a25⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w14⟩ ⟨w20⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨w38⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨a01⟩ ⟨w40⟩ ⟨w34⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨w14⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w22⟩ ⟨w04⟩ ⟨w08⟩ ⟨a01⟩ ⟨a01⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨w22⟩ ⟨a... | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | babington | babington | null | {} | hard | en | 194 | 194 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
two-square-206 | SIEREPKPTSOFMYDEFCHHBUIOMONGUAFCLYGUBFMDRAUDDX | SIEREPKPTSOFMYDEFCHHBUIOMONGUAFCLYGUBFMDRAUDDX | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | two_square | two_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0921 | APZRMKPIYIFBTNPHOLUJYBKG | APZRMKPIYIFBTNPHOLUJYBKG | TORPEDO AWAY ALL HANDS BRACE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0020224 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨w32⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨w38⟩ ⟨a07⟩ ⟨w10⟩ ⟨w34⟩ ⟨a01⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨a07⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨w32⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨w38⟩ ⟨a07⟩ ⟨w10⟩ ⟨w34⟩ ⟨a01⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨a07⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | babington | babington | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
fialka-v2-0166 | ANGHLKWKTPWHWNKFTHNJFJGD | ANGHLKWKTPWHWNKFTHNJFJGD | NORTH STAR HOLDS FIRM COURSE | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0008622 | FSERTNOOTNICRULVTNCEKNEIOYTRIILMCNIERYFUEDESRRPFNSCSSEMEDANTMRNBRUAECSIADSBEYOYOAGTMAETTDPTLQLTERGNESRIUEBTEIHDNEKFSRIRTECUEFX | FSERTNOOTNICRULVTNCEKNEIOYTRIILMCNIERYFUEDESRRPFNSCSSEMEDANTMRNBRUAECSIADSBEYOYOAGTMAETTDPTLQLTERGNESRIUEBTEIHDNEKFSRIRTECUEFX | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | stager_route | stager_route | null | {
"cols": 9
} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
slidex-v3-0143 | SSGCPXASVHYTDGRXRDUXUP | SSGCPXASVHYTDGRXRDUXUP | THE EXPERIMENT CONFIRMS | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0372 | CLIYSBXQDLCV | CLIYSBXQDLCV | KNOW THYSELF | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0069 | GTNVYIJEORNURGQHTQOKRLYRORUJDURQHNJSPHITQSNTDORDRLQYJIJURNUTOQOKTIOJAPRJDJPYLQYFR | GTNVYIJEORNURGQHTQOKRLYRORUJDURQHNJSPHITQSNTDORDRLQYJIJURNUTOQOKTIOJAPRJDJPYLQYFR | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0033 | DFCMBVTPOYXVD | DFCMBVTPOYXVD | ANNUIT COEPTIS | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0007679 | TIGYM LKUMA ONUCV THLKX MVNBN DAUKQ KPKFE XBO | TIGYM LKUMA ONUCV THLKX MVNBN DAUKQ KPKFE XBO | THE VIGENERE CIPHER USES A REPEATING KEYWORD | trithemius | trithemius | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [] | |
alberti-disk-v2-0017 | DJWEERVOMDGFGPJJLCA | DJWEERVOMDGFGPJJLCA | CODED MESSAGE FOLLOWS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
running-key-v3-0016 | FFWYWTGXOGKWAVPYQ | FFWYWTGXOGKWAVPYQ | ARCHERS TO THE WALLS | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0007555 | HPHCI HETSE RITRS OOSNN RAOXI RTXCE PXATR XLEOX CATXI CEX | HPHCI HETSE RITRS OOSNN RAOXI RTXCE PXATR XLEOX CATXI CEX | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | scytale | scytale | null | {
"cols": 12
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
adfgx-194 | DXDGADDAADGAXFGXDGDDGGDFXFDADF | DXDGADDAADGAXFGXDGDDGGDFXFDADF | FORWARD MARCH NOW | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0084 | NLWASNROLBSETLSOETUYPAENRICENMOJEHHAFPRLPTFDRSEOOAINRNANSNLTRCMUEEGAODAESR | NLWASNROLBSETLSOETUYPAENRICENMOJEHHAFPRLPTFDRSEOOAINRNANSNLTRCMUEEGAODAESR | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0008103 | TIG GIYKJBRFP EGISYVK IUOPBPMS CGISWK TITSYS PZPYDK TH VBCGME DKSLJX HXYVTQF O AYEWTL AQKASIPP WS JGJP UOEFRF | TIG GIYKJBRFP EGISYVK IUOPBPMS CGISWK TITSYS PZPYDK TH VBCGME DKSLJX HXYVTQF O AYEWTL AQKASIPP WS JGJP UOEFRF | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | trithemius | trithemius | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [] | |
cda-0018355 | 819 852 844 840 856 817 814 834 811 999 860 856 813 855 999 800 999 810 824 818 826 859 999 854 812 848 862 813 840 807 814 999 800 855 999 859 822 812 999 851 813 846 814 802 858 826 841 819 999 832 812 873 999 857 821 813 999 835 826 804 852 801 853 874 999 847 852 814 855 813 851 864 813 856 999 830 840 842 868 833 ... | 819 852 844 840 856 817 814 834 811 999 860 856 813 855 999 800 999 810 824 818 826 859 999 854 812 848 862 813 840 807 814 999 800 855 999 859 822 812 999 851 813 846 814 802 858 826 841 819 999 832 812 873 999 857 821 813 999 835 826 804 852 801 853 874 999 847 852 814 855 813 851 864 813 856 999 830 840 842 868 833 ... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE PERHAPS | culper_ring | culper_ring | null | {} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0019479 | 01929 05658 02883 1657 01336 04141 0349 4467 01633 6020 06331 02900 04106 0377 06364 1614 1323 03482 01635 07949 3865 1583 4410 02286 6320 02551 01885 05694 4723 4159 5979 6298 0333 6320 02925 5978 06303 2904 01008 5979 | 01929 05658 02883 1657 01336 04141 0349 4467 01633 6020 06331 02900 04106 0377 06364 1614 1323 03482 01635 07949 3865 1583 4410 02286 6320 02551 01885 05694 4723 4159 5979 6298 0333 6320 02925 5978 06303 2904 01008 5979 | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | zimmermann | zimmermann | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
joseon-yeokhak-v2-0218 | MCIFAWGGWCBWTMCIQVCCGSHCOQQSDHWHWGHCSLHFOQHHVSOUSBHTFCAPSVWBRSBSAMZWBSGHCBWUVH | MCIFAWGGWCBWTMCIQVCCGSHCOQQSDHWHWGHCSLHFOQHHVSOUSBHTFCAPSVWBRSBSAMZWBSGHCBWUVH | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0067 | UMIVGNFISYCKLUBXKJRCLGTRWJGVEDSUSYPNLAUYYXATVVFHHPRVOKFNUEECTDAHMZAGOPBUH | UMIVGNFISYCKLUBXKJRCLGTRWJGVEDSUSYPNLAUYYXATVVFHHPRVOKFNUEECTDAHMZAGOPBUH | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
bifid-fr-020 | KIQCKMPIOKKOFKGBVI | KIQCKMPIOKKOFKGBVI | LA PATRIE LA LOI LE ROI | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | fr | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0010013 | ENXE TKRT AGHC AEMT HLOE LDTI CNDA SUUA CERI BRSR DWRN UPTL XAAL ACCX SITR SSIE SHAO UTAO EENO YEMB MSHF | ENXE TKRT AGHC AEMT HLOE LDTI CNDA SUUA CERI BRSR DWRN UPTL XAAL ACCX SITR SSIE SHAO UTAO EENO YEMB MSHF | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | double_transposition | double_transposition | null | {
"key1": "MUSEUM",
"key2": "PALACE"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
geheimschreiber-v3-0302 | EZTXOQFNZCVMAEEEIGLFDFPHYIHMGQDHEPQRYVBEDJTNYARGTRQYMSKUJCHSFBFIBECEULOBBJKDSCWBSTGWIZXLMXIWVLHFFMVNUYFWCJCBPZOUXHYOKDSNTMGETOCHZCRUOAINQBBKGRQHMMVCMRTTFQEXYXTZN | EZTXOQFNZCVMAEEEIGLFDFPHYIHMGQDHEPQRYVBEDJTNYARGTRQYMSKUJCHSFBFIBECEULOBBJKDSCWBSTGWIZXLMXIWVLHFFMVNUYFWCJCBPZOUXHYOKDSNTMGETOCHZCRUOAINQBBKGRQHMMVCMRTTFQEXYXTZN | 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 | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
hist-nsa-training-001 | MJKBV XYZNR QPWTS AODEH LFICU | MJKBV XYZNR QPWTS AODEH LFICU | CONSULT WITH WASHINGTON BEFORE FINAL DECISION | purple | purple | machine | {
"switch_settings": "TRAINING-A",
"alphabet_group": "sixes_twenties",
"date": "19410601"
} | expert | ja | 25 | 29 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0342 | JBPYOUAAKLNQILSQWBQRADABTATBNSAPDAPIEMDAPHASSAPQWAPATAILTATRYSDLJBQMDAHEMMAQ | JBPYOUAAKLNQILSQWBQRADABTATBNSAPDAPIEMDAPHASSAPQWAPATAILTATRYSDLJBQMDAHEMMAQ | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0102 | SZYUJXACMBEZNIGDUYYTXCSFKCILNVSWRCVVRAIYUUFRQCMRIWFBYSFOPKKJDDIQQESLILOPCXNFRZVDPPQCMLPGXXZTJCLCSJKOSRYQVWFNRBJSIZIDFGSKCSGVUWBPECZAAIFVOXJRDPOAPNKAZOLICKSWPJXRYJJAI | SZYUJXACMBEZNIGDUYYTXCSFKCILNVSWRCVVRAIYUUFRQCMRIWFBYSFOPKKJDDIQQESLILOPCXNFRZVDPPQCMLPGXXZTJCLCSJKOSRYQVWFNRBJSIZIDFGSKCSGVUWBPECZAAIFVOXJRDPOAPNKAZOLICKSWPJXRYJJAI | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
affine-vf-0004 | YFKDRSLR VNKMFHKH FMM VIHKFLMRH | YFKDRSLR VNKMFHKH FMM VIHKFLMRH | PATIENCE OUTLASTS ALL OBSTACLES | affine | affine | substitution | {
"a": 3,
"b": 5
} | beginner | en | 28 | 31 | cipher_museum | 2.0 | public | null | null |
m209-v3-0055 | MCTXOEXITJXQKKMATVWVQPVIRBTZCPBMZTUYUNRJVIVRILLATZQDAVLAQVQYKDUBDSDAPJAUQMIYVQ | MCTXOEXITJXQKKMATVWVQPVIRBTZCPBMZTUYUNRJVIVRILLATZQDAVLAQVQYKDUBDSDAPJAUQMIYVQ | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0302 | 97 46 59 55 45 63 45 50 45 53 64 25 50 65 37 76 26 70 66 33 | 97 46 59 55 45 63 45 50 45 53 64 25 50 65 37 76 26 70 66 33 | THE KING DEMANDS FEALTY | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 40 | 59 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0039 | 65 47 86 55 28 37 56 24 96 56 67 27 34 25 69 56 47 37 64 33 86 56 27 30 | 65 47 86 55 28 37 56 24 96 56 67 27 34 25 69 56 47 37 64 33 86 56 27 30 | TORPEDO AWAY ALL HANDS BRACE | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 48 | 71 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0036 | SRNXPXQXBGXAVPZEDE | SRNXPXQXBGXAVPZEDE | GRAVITY EXPLAINS ALL | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0096 | DDDDFFXVAGAXDXVGGFXFDXDDGXDXGVFFFAFGDFDFFFDFFFFDAFAGDFGFVDXFVFDAGVAGGAFADXFDVGFDFDDAFFFADFGAAVFFVADAAGGAAFGDAADDAAGAAAADAFDGFFFDFDFDDFAAGGVVDDVDDVAXGDDFFFAGGDVVGVVV | DDDDFFXVAGAXDXVGGFXFDXDDGXDXGVFFFAFGDFDFFFDFFFFDAFAGDFGFVDXFVFDAGVAGGAFADXFDVGFDFDDAFFFADFGAAVFFVADAAGGAAFGDAADDAAGAAAADAFDGFFFDFDFDDFAAGGVVDDVDDVAXGDDFFFAGGDVVGVVV | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0300 | AOTEIMMTESLRAANEASSTLLGCHPNOGATDEHILYNRGHSAMSAPLEEEANATYAIAXWSDNISRFTX | AOTEIMMTESLRAANEASSTLLGCHPNOGATDEHILYNRGHSAMSAPLEEEANATYAIAXWSDNISRFTX | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0182 | UKRLRITHECOUBUEOFHUMDKLYRLAPEQBEDDHOSNECBTOGEZMFROPFPEOPLEDFYNSSQIWRTHLTQIEQEACKIBQFOZHITLGBWRDDSHECAFCUHEGZEQGBSFTHERTHEYNNOULDAOCLYEETHECAWPBTUKEAHIFUELTHBTLTYECSIOPV | UKRLRITHECOUBUEOFHUMDKLYRLAPEQBEDDHOSNECBTOGEZMFROPFPEOPLEDFYNSSQIWRTHLTQIEQEACKIBQFOZHITLGBWRDDSHECAFCUHEGZEQGBSFTHERTHEYNNOULDAOCLYEETHECAWPBTUKEAHIFUELTHBTLTYECSIOPV | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
homophonic-v2-0004 | 98 47 37 22 50 29 54 91 20 10 93 98 | 98 47 37 22 50 29 54 91 20 10 93 98 | THE DIE IS CAST | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 24 | 35 | cipher_museum | 2.0 | public | null | null |
cda-0009186 | DNR GVURI KP TKGVTGURVTR GA S XARPXF TFXR KYARWQSYFR RQGURVTR TKZRA YRPKWR TKVPGURVTR DNR URDRTDGQR ADXUGRA ESDDRWVA YRPKWR ZSLGVC TFSGZA | DNR GVURI KP TKGVTGURVTR GA S XARPXF TFXR KYARWQSYFR RQGURVTR TKZRA YRPKWR TKVPGURVTR DNR URDRTDGQR ADXUGRA ESDDRWVA YRPKWR ZSLGVC TFSGZA | THE INDEX OF COINCIDENCE IS A USEFUL CLUE OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | monoalphabetic | monoalphabetic | null | {
"alphabet": "SYTURPCNGJLFZVKEMWADXQOIBH"
} | hard | en | 118 | 118 | synthetic_educational | null | null | [] | |
cda-0021841 | 10.17.4 6.15.1 8.31.10 10.20.14 1.17.12 2.24.14 9.1.10 20.6.4 8.11.3 2.27.2 5.32.15 19.13.7 14.6.9 6.30.5 11.33.8 15.48.7 16.10.10 1.21.11 14.15.5 11.31.1 4.3.11 11.23.9 8.49.2 6.46.6 19.9.12 1.37.4 8.24.13 7.15.12 13.7.3 15.46.8 5.26.13 5.40.11 2.15.10 19.28.7 9.2.4 1.29.10 15.3.8 6.21.5 16.48.9 19.28.9 12.26.8 13.34.... | 10.17.4 6.15.1 8.31.10 10.20.14 1.17.12 2.24.14 9.1.10 20.6.4 8.11.3 2.27.2 5.32.15 19.13.7 14.6.9 6.30.5 11.33.8 15.48.7 16.10.10 1.21.11 14.15.5 11.31.1 4.3.11 11.23.9 8.49.2 6.46.6 19.9.12 1.37.4 8.24.13 7.15.12 13.7.3 15.46.8 5.26.13 5.40.11 2.15.10 19.28.7 9.2.4 1.29.10 15.3.8 6.21.5 16.48.9 19.28.9 12.26.8 13.34.... | THE BEST LESSONS SHOW WHERE THE METHOD FAILS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS FAIL CLOSED IS A POSTURE NOT A SLOGAN CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | book_cipher | book_cipher | null | {} | hard | en | 147 | 147 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0003600 | QVTE NCUN AQGE VTEN CUSE RDHR APVR FRKC BFRF VZCY RPVC UREF GURQ RGRP GVIR FGHQ VRFC NGGR EAFO RSBE RZNX VATP YNVZ FCRR EERI VRJN AQER CEBQ HPVO VYVG LZNG GREV AERF RNEP UGUR SBHE FDHN ERPV CURE HFRF GJBX RLJB EQCB YLOV HFFD HNER F | QVTE NCUN AQGE VTEN CUSE RDHR APVR FRKC BFRF VZCY RPVC UREF GURQ RGRP GVIR FGHQ VRFC NGGR EAFO RSBE RZNX VATP YNVZ FCRR EERI VRJN AQER CEBQ HPVO VYVG LZNG GREV AERF RNEP UGUR SBHE FDHN ERPV CURE HFRF GJBX RLJB EQCB YLOV HFFD HNER F | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
chaocipher-v2-0543 | GMFGSPGFEERCONHAOHJKVFZL | GMFGSPGFEERCONHAOHJKVFZL | TORPEDO AWAY ALL HANDS BRACE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0317 | MTHJPGCFBXTIAJPJ | MTHJPGCFBXTIAJPJ | SOUND THE TRUMPETS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
book-cipher-v3-0004 | 3 35.1 7.1 10.1 24.1 3.1 7.1 15.1 7.1 4.1 53.1 7.1 7.1 35.1 | 3 35.1 7.1 10.1 24.1 3.1 7.1 15.1 7.1 4.1 53.1 7.1 7.1 35.1 | THE SENATE DECREES | book_cipher | book_cipher | codebook | {
"type": "none",
"value": null
} | expert | en | 46 | 59 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0413 | GCKCTKXNHDDC | GCKCTKXNHDDC | IN GOD WE TRUST | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
kl7-109 | BHOAWJXHVOQKWJFWCQUWBVVBOFKOITAGIOLNSFMRDEAVSNPTEYRXTGM | BHOAWJXHVOQKWJFWCQUWBVVBOFKOITAGIOLNSFMRDEAVSNPTEYRXTGM | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | kl7 | kl7 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0625 | AAFAADAAAAGADDFFDGAADAFGFFFAAAFGADAFFDAGADGGGAGFFADVGVFDVVVVDFGDGVXFFFGVDGGGVXDVXDVADVGDGDFGDFDGDVFFGAFGFFFADDAAAAVGAAGDDAFAAVADFGFDAAAAGFAGFAAADAAAAAGXFAGDXXGVXGGFDGVAGGVXVVFDFVDFVVDVDGVVDFVVXGVDVGVDDDGFVDXFDGVVFVADGGDVFDVXVADDDFGFFXVDVGFDGXVFFDGDXDDAGGGAGAFFDFDADDADAFAADAFGGAFDFFFAGFAFGGFFDFAGADAD | AAFAADAAAAGADDFFDGAADAFGFFFAAAFGADAFFDAGADGGGAGFFADVGVFDVVVVDFGDGVXFFFGVDGGGVXDVXDVADVGDGDFGDFDGDVFFGAFGFFFADDAAAAVGAAGDDAFAAVADFGFDAAAAGFAGFAAADAAAAAGXFAGDXXGVXGGFDGVAGGVXVVFDFVDFVVDVDGVVDFVVXGVDVGVDDDGFVDXFDGVVFVADGGDVFDVXVADDDFGFFXVDVGFDGXVFFDGDXDDAGGGAGAFFDFDADDADAFAADAFGGAFDFFFAGFAFGGFFDFAGADAD | 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 | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 300 | 300 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0059 | WFUKEQRMQPREAAHWUSWTWCAPYMDXGVLFRSNRQSFBBIXVDTHYEKEFRPWQHXGULRXETRTXUCVL | WFUKEQRMQPREAAHWUSWTWCAPYMDXGVLFRSNRQSFBBIXVDTHYEKEFRPWQHXGULRXETRTXUCVL | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0244 | 58 39 58 43 55 50 64 65 27 56 33 56 39 43 25 46 86 24 47 38 75 55 27 90 52 36 40 64 36 56 76 23 45 66 45 47 27 88 53 65 38 43 35 57 59 22 58 50 45 45 56 70 43 26 70 56 54 27 87 42 58 48 45 44 37 86 35 45 37 43 45 27 87 56 24 57 45 55 | 58 39 58 43 55 50 64 65 27 56 33 56 39 43 25 46 86 24 47 38 75 55 27 90 52 36 40 64 36 56 76 23 45 66 45 47 27 88 53 65 38 43 35 57 59 22 58 50 45 45 56 70 43 26 70 56 54 27 87 42 58 48 45 44 37 86 35 45 37 43 45 27 87 56 24 57 45 55 | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
trithemius-v2-0001 | TIG GMJ OZ KJCE | TIG GMJ OZ KJCE | THE DIE IS CAST | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 12 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0017002 | WLHZ OUGK NWKS GBQM PSPQ ACMU VPHY YTWI KPIW HDES HAFY CAPU EDHX XBJH HYVZ MWKI VBGG RJXM FSBA DEVW OOWG RLNB DPAB LIOE LS | WLHZ OUGK NWKS GBQM PSPQ ACMU VPHY YTWI KPIW HDES HAFY CAPU EDHX XBJH HYVZ MWKI VBGG RJXM FSBA DEVW OOWG RLNB DPAB LIOE LS | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | one_time_pad | one_time_pad | null | {} | hard | en | 98 | 98 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
adfgx-v3-0106 | AXADAXFFAAFDADAADXDFGAFDDFGGAXDGFDFDFD | AXADAXFFAAFDADAADXDFGAFDDFGGAXDGFDFDFD | AVE MARIA GRATIA PLENA | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 38 | 38 | cipher_museum | 2.0 | public | null | null |
cda-0013006 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | wallis_cipher | wallis_cipher | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
null-cipher-031 | aeia it at outa utnc work nsra part old aeia now than | aeia it at outa utnc work nsra part old aeia now than | ATTACK AT DAWN | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 42 | 53 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0555 | FOURTCOREANDSEVENYEARSAGOOURFATHERSBROUGHTFORSHONTHISCONTINENTANEWNATIONCONCEIVEDINLIBFRTYANDDEDICATEDTOTHEPROPOSITIONTHATALLMEMARECREATEDEQUAL | FOURTCOREANDSEVENYEARSAGOOURFATHERSBROUGHTFORSHONTHISCONTINENTANEWNATIONCONCEIVEDINLIBFRTYANDDEDICATEDTOTHEPROPOSITIONTHATALLMEMARECREATEDEQUAL | FOURSCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH ON THIS CONTINENT A NEW NATION CONCEIVED IN LIBERTY AND DEDICATED TO THE PROPOSITION THAT ALL MEN ARE CREATED EQUAL | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cda-0019774 | .. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ... | .. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY NEVER | tap_code | tap_code | null | {} | hard | en | 192 | 192 | 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-0011125 | CBGVEW YOQODPP GVT QCHAUWAQ ZX TITHI UUZQCSZZF | CBGVEW YOQODPP GVT QCHAUWAQ ZX TITHI UUZQCSZZF | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | trithemius | trithemius | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [] | |
beaufort-v3-0879 | FLHBUUNTLIZHFJJNXTJCGNCFGGRTJBJPRUXNLPBMAYCADTHFRYQXBQVMFQCFPNZZNWZHJSTMWSQFRRECAGIERWKP | FLHBUUNTLIZHFJJNXTJCGNCFGGRTJBJPRUXNLPBMAYCADTHFRYQXBQVMFQCFPNZZNWZHJSTMWSQFRRECAGIERWKP | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1081 | JXU JUBUWHQFX JHQDICYJI | JXU JUBUWHQFX JHQDICYJI | THE TELEGRAPH TRANSMITS | caesar | caesar | substitution | {
"type": "shift",
"value": 16
} | beginner | en | 21 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0019649 | HIWME YEYZJ GJQQG VFIPQ QMKBY XSWYN QYZM | HIWME YEYZJ GJQQG VFIPQ QMKBY XSWYN QYZM | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | running_key | running_key | null | {} | medium | en | 34 | 34 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
bifid-v3-0002 | CNTBTFLMORXNZHPUTW | CNTBTFLMORXNZHPUTW | CROSS THE RUBICON NOW | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-073 | GRRQKDTFTGWFRER | GRRQKDTFTGWFRER | ENEMY FORCES NEAR | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0007694 | MNYNTEEFEOOOEPIBNTRNMWDNTSRBTECOXECINOYEQYRXRROOKLRUTRX | MNYNTEEFEOOOEPIBNTRNMWDNTSRBTECOXECINOYEQYRXRROOKLRUTRX | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY TOMORROW | scytale | scytale | null | {
"cols": 5
} | medium | en | 55 | 55 | synthetic_educational | null | null | [] | |
atbash-v2-0080 | GSV SVZEVMH WVXOZIV GSV TOLIB LU TLW ZMW GSV URINZNVMG HSLDVGS ULIGS SRH SZMWRDLIP VZXS MRTSG | GSV SVZEVMH WVXOZIV GSV TOLIB LU TLW ZMW GSV URINZNVMG HSLDVGS ULIGS SRH SZMWRDLIP VZXS MRTSG | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 78 | 93 | cipher_museum | 2.0 | public | null | null |
vic-v2-0181 | 90889189901090834585888093190836559083104834688906080546008590910908590831048593091080488899060801082106559369589 | 90889189901090834585888093190836559083104834688906080546008590910908590831048593091080488899060801082106559369589 | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 113 | 113 | cipher_museum | 2.0 | public | null | null |
cda-0008694 | GUR ORFG YRFFBAF FUBJ JURER GUR ZRGUBQ SNVYF | GUR ORFG YRFFBAF FUBJ JURER GUR ZRGUBQ SNVYF | THE BEST LESSONS SHOW WHERE THE METHOD FAILS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 37 | 37 | synthetic_educational | null | null | [] | |
adfgvx-v2-0540 | FAVDGDVAFDDGAAFXVVXADXDAAFAD | FAVDGDVAFDDGAAFXVVXADXDAAFAD | LIBERTY OR DEATH | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
jn25-059 | 41424 41412 41419 41415 41422 41424 41429 41410 41437 41415 41422 41413 41423 41429 41410 41436 41413 41424 41415 41426 41413 41427 41420 41429 41422 41424 41415 41428 41417 41419 41424 41429 41424 41412 41419 41423 41424 41415 41424 41419 41413 41424 41413 41423 41415 41427 41415 41424 41424 41419 41422 41429 41410 41... | 41424 41412 41419 41415 41422 41424 41429 41410 41437 41415 41422 41413 41423 41429 41410 41436 41413 41424 41415 41426 41413 41427 41420 41429 41422 41424 41415 41428 41417 41419 41424 41429 41424 41412 41419 41423 41424 41415 41424 41419 41413 41424 41413 41423 41415 41427 41415 41424 41424 41419 41422 41429 41410 41... | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | jn25 | jn25 | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 740 | 887 | cipher_museum | 0.2 | public | null | null |
cda-0007756 | RAGE BCLZ RNFH ERFH APRE GNVA GLVA NQVF GEVO HGVB AQBA BGPB ASHF RBOS HFPN GVBA JVGU RAPE LCGV BA | RAGE BCLZ RNFH ERFH APRE GNVA GLVA NQVF GEVO HGVB AQBA BGPB ASHF RBOS HFPN GVBA JVGU RAPE LCGV BA | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 78 | 78 | synthetic_educational | null | null | [] | |
kryha-v3-0058 | UPTUUBJSEYITEXLEAAVJSFMVGHLYWURWCZWTUQULCRFARGNKBNXEECWABCEPVOLULNHRKOZAJF | UPTUUBJSEYITEXLEAAVJSFMVGHLYWURWCZWTUQULCRFARGNKBNXEECWABCEPVOLULNHRKOZAJF | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0309 | XIMAXEMIVXESXAKWYSOEPBELDHTKTXZFHKLPMLXMFWCIGWFTUHXGLXJOGLHSVNWLLREHXTW | XIMAXEMIVXESXAKWYSOEPBELDHTKTXZFHKLPMLXMFWCIGWFTUHXGLXJOGLHSVNWLLREHXTW | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0023 | K3 X7 N2 N2 T7 A4 A1 O6 Y0 L1 O5 J9 O2 | K3 X7 N2 N2 T7 A4 A1 O6 Y0 L1 O5 J9 O2 | FULL SAIL AHEAD | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 26 | 38 | cipher_museum | 2.0 | public | null | null |
cda-0013019 | CHORC TAIIN CHEDA LSHAR ALCHO LDAII NDARA LYTAI INOTA IINRA IINQO KALQO KEEDY QOTED YQOTE DYQOK ALSHE OLCHE DYOKS HYOKS HYCHE OLDAR ALORO RSHEO LOKED YSHAL YTEDY QOKEE DYCHO LDAII NSHAL OKALS HEEDY SHEOL CHORO KAINQ OTEDY DARAL SHEED YCHOR OTEDY OTAII NSHAL ORORD ALAII INSHO RQOKA LDALS HEOLO KSHYC HEDAL QOKEE DYSHA RA... | CHORC TAIIN CHEDA LSHAR ALCHO LDAII NDARA LYTAI INOTA IINRA IINQO KALQO KEEDY QOTED YQOTE DYQOK ALSHE OLCHE DYOKS HYOKS HYCHE OLDAR ALORO RSHEO LOKED YSHAL YTEDY QOKEE DYCHO LDAII NSHAL OKALS HEEDY SHEOL CHORO KAINQ OTEDY DARAL SHEED YCHOR OTEDY OTAII NSHAL ORORD ALAII INSHO RQOKA LDALS HEOLO KSHYC HEDAL QOKEE DYSHA RA... | A STRONG CLAIM NEEDS STRONG EVIDENCE THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | voynich_render | voynich_render | null | {} | hard | en | 322 | 322 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
gronsfeld-v3-0259 | ADVYVHKZKPCLYNLKPUHFLSSVDDVVKHUKZVYYFPJVBSKUVAAYHCLSIVAOHUKILVULAYHCLSLY | ADVYVHKZKPCLYNLKPUHFLSSVDDVVKHUKZVYYFPJVBSKUVAAYHCLSIVAOHUKILVULAYHCLSLY | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "77777"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0418 | EOSINTROOUWCRBCNSH | EOSINTROOUWCRBCNSH | CROSS THE RUBICON NOW | double_transposition | double_transposition | transposition | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0137 | CPEFMGOSGZBQRL | CPEFMGOSGZBQRL | TARGET ACQUIRED | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0129 | ZUKHQPULOPU | ZUKHQPULOPU | HOLD THE LINE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0307 | 63 77 18 25 29 24 44 69 27 75 20 11 77 38 86 39 27 49 71 44 39 87 33 13 77 27 28 38 57 11 77 65 63 42 87 58 22 29 68 63 75 42 69 89 46 29 48 27 75 59 69 13 33 28 42 20 11 16 87 77 71 44 75 59 28 11 63 65 42 39 33 29 43 28 27 | 63 77 18 25 29 24 44 69 27 75 20 11 77 38 86 39 27 49 71 44 39 87 33 13 77 27 28 38 57 11 77 65 63 42 87 58 22 29 68 63 75 42 69 89 46 29 48 27 75 59 69 13 33 28 42 20 11 16 87 77 71 44 75 59 28 11 63 65 42 39 33 29 43 28 27 | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0090 | QGL PUVQGMYA BYVYMCN ZGCKZ QGYQ OCEEUZUCXZ UX GYZG JIXOQUCXZ COOIV JYV ZCCXLV QGYX LNBLOQLM | QGL PUVQGMYA BYVYMCN ZGCKZ QGYQ OCEEUZUCXZ UX GYZG JIXOQUCXZ COOIV JYV ZCCXLV QGYX LNBLOQLM | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 78 | 91 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0033 | 998 824 800 813 810 804 804 999 998 803 814 814 803 811 804 999 | 998 824 800 813 810 804 804 999 998 803 814 814 803 811 804 999 | YANKEE DOODLE | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 48 | 63 | cipher_museum | 2.0 | public | null | null |
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