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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
diana-v2-0015 | RZZPLREXRYLKOJNK | RZZPLREXRYLKOJNK | ABORT AND WITHDRAW | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0003866 | GHOFGWFIGVBA QWDUREF ZOD NNQU YSHGRE GB O RVSTRESBG YSGGSF OA OSTWBN PWCVSF OCCYWSG O YWASOF SHAPGWCA GB ROQV YRGGSD DBYLNYBVOOSGWQ QVCVREE IFR ZHYFWCYS NYBVOOSG FVWSGF GVS YOFWFXW SKNZVAOHVBA SWNRF ESCSOHNQ GEWUFOZF VA QWCUSEGSLG | GHOFGWFIGVBA QWDUREF ZOD NNQU YSHGRE GB O RVSTRESBG YSGGSF OA OSTWBN PWCVSF OCCYWSG O YWASOF SHAPGWCA GB ROQV YRGGSD DBYLNYBVOOSGWQ QVCVREE IFR ZHYFWCYS NYBVOOSG FVWSGF GVS YOFWFXW SKNZVAOHVBA SWNRF ESCSOHNQ GEWUFOZF VA QWCUSEGSLG | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | porta | porta | null | {
"key": "LIBRARY"
} | hard | en | 198 | 198 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
affine-v3-0260 | SZ WZO BZ BVWOQV HWOZ OEJO BZZS WHBEO ZQS JBV LEZRQS MRIW JWS IJUV JO PQZLV ZY SJD IJBV IJBV | SZ WZO BZ BVWOQV HWOZ OEJO BZZS WHBEO ZQS JBV LEZRQS MRIW JWS IJUV JO PQZLV ZY SJD IJBV IJBV | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | affine | affine | substitution | {
"a": 3,
"b": 9
} | beginner | en | 73 | 92 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0368 | ESPWZCOTDXJDSPASPCOTDSLWWYZEHLYESPXLVPESXPEZWTPOZHYTYRCPPYALDEFCPDSPWPLOPESXPMPDTOPESPDETWWHLEPCDSPCPDEZCPESXJDZFWSPWPLOPESXPTYESPALESDZQCTRSEPZFDYPDDQZCSTDYLXPDLVP | ESPWZCOTDXJDSPASPCOTDSLWWYZEHLYESPXLVPESXPEZWTPOZHYTYRCPPYALDEFCPDSPWPLOPESXPMPDTOPESPDETWWHLEPCDSPCPDEZCPESXJDZFWSPWPLOPESXPTYESPALESDZQCTRSEPZFDYPDDQZCSTDYLXPDLVP | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0020441 | 05066 4786 3810 07865 00385 03838 5086 2606 00385 00708 01640 6306 2902 00998 0995 2835 05078 02565 01626 05721 6016 06602 06053 1604 4118 6606 3775 06315 02851 05109 03798 01632 0349 03806 05116 02528 00327 00643 01647 6365 06006 2572 2884 1888 06294 6018 | 05066 4786 3810 07865 00385 03838 5086 2606 00385 00708 01640 6306 2902 00998 0995 2835 05078 02565 01626 05721 6016 06602 06053 1604 4118 6606 3775 06315 02851 05109 03798 01632 0349 03806 05116 02528 00327 00643 01647 6365 06006 2572 2884 1888 06294 6018 | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | zimmermann | zimmermann | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0005959 | SVII RODQ HOKX JRGS UORV MAHD HVGS JVUR IYCX TUXI YITI YHDJ YXIH OYCV GCYS JROX VORI RVCJ ROXD HISO HIRC IYHD | SVII RODQ HOKX JRGS UORV MAHD HVGS JVUR IYCX TUXI YITI YHDJ YXIH OYCV GCYS JROX VORI RVCJ ROXD HISO HIRC IYHD | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | monoalphabetic | monoalphabetic | null | {
"alphabet": "VUCKRLBJYPMGADHSNOXITFQEZW"
} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
cda-0018548 | BAABA BABAA ABBAB BAAAB ABBBB BAABB AAAAA BAAAA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA BAAAB AAABB ABAAA AABBA BAAAA AAAAA ABBBA AABBB BAAAB BABAA ABAAA BAABA AABBB BAABA BABAA ABBAB ABBBA ABBAB ABABA BABBA AAAAB ABAAA BAABB BAAAB AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BA... | BAABA BABAA ABBAB BAAAB ABBBB BAABB AAAAA BAAAA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA BAAAB AAABB ABAAA AABBA BAAAA AAAAA ABBBA AABBB BAAAB BABAA ABAAA BAABA AABBB BAABA BABAA ABBAB ABBBA ABBAB ABABA BABBA AAAAB ABAAA BAABB BAAAB AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BA... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | bacon_cipher | bacon_cipher | null | {} | hard | en | 765 | 765 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
adfgvx-v2-0333 | FDAAFAVGDDAAVGVAADDVVFFDDFXAAAFAAAXDAFFAGAAADGGGGXAXDDDADXFFFGAFGDDAGGXAXDVDDGDDDADFVDFAGDXAFDDAXAXFXFXAXFDDFFAFFFDDFGFGDFXDXAADVGDDXAXAXGXAAADXDDDADXDFAAGXFFADAD | FDAAFAVGDDAAVGVAADDVVFFDDFXAAAFAAAXDAFFAGAAADGGGGXAXDDDADXFFFGAFGDDAGGXAXDVDDGDDDADFVDFAGDXAFDDAXAXFXFXAXFDDFFAFFFDDFGFGDFXDXAADVGDDXAXAXGXAAADXDDDADXDFAAGXFFADAD | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
cda-0006832 | OIYLGINNTAEXEBSRORFPEECHNNSSXSIXPLYMNBROILIYAEIOSPUWAIYDNCUYCNOARRTSHRETPELCTSEOEYSNUEONABUAECEALLNDOIPDNEMWEGAABEIEPHXAPTNOCFTISSTTERLXRNAOTTYCVTATLYYSBKDPDEIKDSNRFDRAATBSCATPNLIEWTEUESERMKSMHSHHURTSEEOK | OIYLGINNTAEXEBSRORFPEECHNNSSXSIXPLYMNBROILIYAEIOSPUWAIYDNCUYCNOARRTSHRETPELCTSEOEYSNUEONABUAECEALLNDOIPDNEMWEGAABEIEPHXAPTNOCFTISSTTERLXRNAOTTYCVTATLYYSBKDPDEIKDSNRFDRAATBSCATPNLIEWTEUESERMKSMHSHHURTSEEOK | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "PALACE"
} | hard | en | 204 | 204 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
kama-sutra-232 | LH BNW TWOLHHLHO EVX BNW EGCQ VHQ BNW EGCQ EVX ELBN OGQ VHQ PYII GP OCVRW | LH BNW TWOLHHLHO EVX BNW EGCQ VHQ BNW EGCQ EVX ELBN OGQ VHQ PYII GP OCVRW | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 58 | 73 | cipher_museum | 0.2 | public | null | null |
hill-v3-0478 | WVVNFRIPIAGPDWBMXDFIAGFUSRLIUIWKQKBUJKFVVPNNWFXJTCLVSQSRBAXDLOZUNGFVTCKZVH | WVVNFRIPIAGPDWBMXDFIAGFUSRLIUIWKQKBUJKFVVPNNWFXJTCLVSQSRBAXDLOZUNGFVTCKZVH | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0180 | FVGXDFAVDVFVAFADDFAXFAXAXDXGGGDDXFFGFFDGDAXVDGFFGFAAFFFAGGAVGAAGDAFXDVAAGAFXDDAGAGFVGXDXFGAFFDFVADDXAAADADFGAAFFGXDDFFAXFXAFAGAVDFAADFGAADXFXAAGGAGDVG | FVGXDFAVDVFVAFADDFAXFAXAXDXGGGDDXFFGFFDGDAXVDGFFGFAAFFFAGGAVGAAGDAFXDVAAGAFXDDAGAGFVGXDXFGAFFDFVADDXAAADADFGAAFFGXDDFFAXFXAFAGAVDFAADFGAADXFXAAGGAGDVG | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-071 | JOHUNLVMWSHUZ | JOHUNLVMWSHUZ | CHANGE OF PLANS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "CIPHER"
} | beginner | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0356 | YLEDTKURKXVJUQBSNZDELAHTMALMVGXPWTOKRPGVVTDFKBASCEWLRTXENQUVUKCZVWAUYQHLITXWOENYTCVBWB | YLEDTKURKXVJUQBSNZDELAHTMALMVGXPWTOKRPGVVTDFKBASCEWLRTXENQUVUKCZVWAUYQHLITXWOENYTCVBWB | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0484 | JUIAIMDBLDVATAEIRWVEAIKVUMDAGVIKWWSPABDTXEKVSAEFANGTEGAUIHAIHNJXBERSABBINFUMOAJTBLFNVBDSTIFATBEEFVQ | JUIAIMDBLDVATAEIRWVEAIKVUMDAGVIKWWSPABDTXEKVSAEFANGTEGAUIHAIHNJXBERSABBINFUMOAJTBLFNVBDSTIFATBEEFVQ | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0593 | RIOSSOD FQO TBO JOOH MLQ TBOY SBFII CKBOQCT TBO OFQTB FKD TBO NOFEOJFHOQS SBFII RO EFIIOD SLKS | RIOSSOD FQO TBO JOOH MLQ TBOY SBFII CKBOQCT TBO OFQTB FKD TBO NOFEOJFHOQS SBFII RO EFIIOD SLKS | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | beginner | en | 78 | 94 | cipher_museum | 2.0 | public | null | null |
hill-164 | PWSAVEMTCJSESTZQSWONPOHVACKWGKKSAJHMNALBAXDSAEDIHSSCLUEIZS | PWSAVEMTCJSESTZQSWONPOHVACKWGKKSAJHMNALBAXDSAEDIHSSCLUEIZS | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | hill | hill | polygraphic | {
"a": 2,
"b": 3,
"c": 1,
"d": 4
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
cda-0021131 | ⟨a17⟩ ⟨w10⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w14⟩ ⟨w10⟩ ⟨a07⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w10⟩ ⟨a11⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a29⟩ ⟨w28⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a17⟩ ⟨w08⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨a... | ⟨a17⟩ ⟨w10⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w14⟩ ⟨w10⟩ ⟨a07⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w10⟩ ⟨a11⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a29⟩ ⟨w28⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a17⟩ ⟨w08⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨a... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | babington | babington | null | {} | hard | en | 168 | 168 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
purple-v2-0258 | NQEDMDCPTAFSD | NQEDMDCPTAFSD | THE PASS IS HELD | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
typex-v3-0210 | UCANHPZCDDOCJXGPZV | UCANHPZCDDOCJXGPZV | CROSS THE RUBICON NOW | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
affine-v2-1399 | ZQFX QUV NJHIZV | ZQFX QUV NJHIZV | STAY THE COURSE | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
m209-179 | KVACLKQXGCMVKOXHXJCQWSQPLKBQCYIOKVZKKEIYVKWKEREJJAKOXTWVYCRBYXDMWBNQDYZUKUBLJPLFWYJEQMIONIUSWXPBZWJUNDLGEUXZIPZUPOKUMFGVWBWACPOSPPEZAOJQLBZQXWTXAJAA | KVACLKQXGCMVKOXHXJCQWSQPLKBQCYIOKVZKKEIYVKWKEREJJAKOXTWVYCRBYXDMWBNQDYZUKUBLJPLFWYJEQMIONIUSWXPBZWJUNDLGEUXZIPZUPOKUMFGVWBWACPOSPPEZAOJQLBZQXWTXAJAA | 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 | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
vigenere-448 | TGAAZABVISEZFSM | TGAAZABVISEZFSM | EVACUATE THE BASE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PLAYFAIR"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0722 | TWWBEJMJOJVKPQPOTNJWUOLPUTIZXVSLJMKUZFVBSDNKNZIIOFUZIUHJGRAOXVTZUAVAOYJZJVKQZU | TWWBEJMJOJVKPQPOTNJWUOLPUTIZXVSLJMKUZFVBSDNKNZIIOFUZIUHJGRAOXVTZUAVAOYJZJVKQZU | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0606 | TCTJQGZOYDQSIFCEFBHLEOCVZXXZNEPDYQQGXKWNNBXWDJXCBXAZVRUANJIIPLLIFZYCEIFSJYCEXFB | TCTJQGZOYDQSIFCEFBHLEOCVZXXZNEPDYQQGXKWNNBXWDJXCBXAZVRUANJIIPLLIFZYCEIFSJYCEXFB | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
affine-254 | EVV OU VCUF JWFJWEF | EVV OU VCUF JWFJWEF | ALL IS LOST RETREAT | affine | affine | substitution | {
"a": 11,
"b": 4
} | beginner | en | 16 | 19 | cipher_museum | 0.2 | public | null | null |
typex-v3-0024 | KTQPPLKSYLZCQFU | KTQPPLKSYLZCQFU | THE WIND IS WITH US | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0476 | GT GBHDOQD RSBNTJQ GD LDSLGD VDOP SJ TVDJBO IDBGGDSO DQ LGSP CSPQD LKSO QKSP GDP AKIIDP GBHODP | GT GBHDOQD RSBNTJQ GD LDSLGD VDOP SJ TVDJBO IDBGGDSO DQ LGSP CSPQD LKSO QKSP GDP AKIIDP GBHODP | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "THUNDER"
} | beginner | en | 78 | 94 | cipher_museum | 2.0 | public | null | null |
polybius-049 | 44 23 15 11 42 44 34 21 52 11 42 24 43 34 21 51 24 44 11 31 24 32 35 34 42 44 11 33 13 15 44 34 44 23 15 43 44 11 44 15 24 44 24 43 31 24 21 15 34 42 14 15 11 44 23 | 44 23 15 11 42 44 34 21 52 11 42 24 43 34 21 51 24 44 11 31 24 32 35 34 42 44 11 33 13 15 44 34 44 23 15 43 44 11 44 15 24 44 24 43 31 24 21 15 34 42 14 15 11 44 23 | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 110 | 164 | cipher_museum | 0.2 | public | null | null |
cda-0014660 | ⟨w26⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨a23⟩ ⟨w20⟩ ⟨a01⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w... | ⟨w26⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨a23⟩ ⟨w20⟩ ⟨a01⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE MESSAGE WAS HIDDEN BUT NOT SECURE THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | babington | babington | null | {} | hard | en | 177 | 177 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0008095 | TIG YMLKUMAO NUCVTH LKXM V NBNDAUKQK PKFEXBO | TIG YMLKUMAO NUCVTH LKXM V NBNDAUKQK PKFEXBO | THE VIGENERE CIPHER USES A REPEATING KEYWORD | trithemius | trithemius | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [] | |
diana-v2-0007 | ZSHTEGMSWCMGJH | ZSHTEGMSWCMGJH | SIGNAL FIRES LIT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0007266 | RWAFECEVLZEEXJCJTAMTUCHLQLDNATXYLEXWLFEEHOIGXLSAZFGKPTIEALIOFPFAHIZOKOCQTWKYSWAHFZRG | RWAFECEVLZEEXJCJTAMTUCHLQLDNATXYLEXWLFEEHOIGXLSAZFGKPTIEALIOFPFAHIZOKOCQTWKYSWAHFZRG | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | autokey | autokey | null | {
"primer": "CIPHER"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
wheatstone-v3-0236 | TLKSNEPASEHHYLUQAASDAWDESAQ | TLKSNEPASEHHYLUQAASDAWDESAQ | DONT FIRE TILL YOU SEE THE WHITES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
purple-013 | QHXDLOLNTSCWTIB | QHXDLOLNTSCWTIB | ENEMY FORCES NEAR | purple | purple | machine | {
"type": "seed",
"value": "PURPLE"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0141 | LJPVCTVI6JXWQJL6 | LJPVCTVI6JXWQJL6 | ABORT AND WITHDRAW | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0220 | EENLGYMT | EENLGYMT | DEUS VULT | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0207 | GDDHXNUHNRFOKYNXUDHHJESYKWDZFNXRYLKFKPQGOKONCOSYPAUQXFBUSZMVISYUMFXXUJMKYBYGSJYAWABBWOMWDTHCJETMEZRPHFWSILCSXYLIUFLPXKMSXXAAFNFRZUYZHURYVNSNNZFOVBTZSIORQZXJZVEUQBKLKXNCOZVBQELTAJLGJT | GDDHXNUHNRFOKYNXUDHHJESYKWDZFNXRYLKFKPQGOKONCOSYPAUQXFBUSZMVISYUMFXXUJMKYBYGSJYAWABBWOMWDTHCJETMEZRPHFWSILCSXYLIUFLPXKMSXXAAFNFRZUYZHURYVNSNNZFOVBTZSIORQZXJZVEUQBKLKXNCOZVBQELTAJLGJT | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0016462 | 15 42 42 34 42 13 34 42 42 15 13 44 24 34 33 11 33 14 14 15 44 15 13 44 24 34 33 11 42 15 21 45 33 14 11 32 15 33 44 11 31 44 34 43 15 13 45 42 15 43 54 43 44 15 32 43 11 33 11 21 21 24 33 15 13 24 35 23 15 42 11 35 35 31 24 15 43 11 31 24 33 15 11 42 21 45 33 13 44 24 34 33 44 34 15 11 13 23 31 15 44 44 15 42 | 15 42 42 34 42 13 34 42 42 15 13 44 24 34 33 11 33 14 14 15 44 15 13 44 24 34 33 11 42 15 21 45 33 14 11 32 15 33 44 11 31 44 34 43 15 13 45 42 15 43 54 43 44 15 32 43 11 33 11 21 21 24 33 15 13 24 35 23 15 42 11 35 35 31 24 15 43 11 31 24 33 15 11 42 21 45 33 13 44 24 34 33 44 34 15 11 13 23 31 15 44 44 15 42 | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | polybius | polybius | null | {} | hard | en | 104 | 104 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0010841 | ASSOI TCNLL SODEH AUCBB SMOIU EIRRU OSNIH UMEEN WTFDE YIRFD FATON GWPNU EROTP LCACN ASLRU ASTLT EDESG ATANT NPTRE ASLEP RHDSV RUAEC LRLBU EIAOE SXAUB GSCLS NA | ASSOI TCNLL SODEH AUCBB SMOIU EIRRU OSNIH UMEEN WTFDE YIRFD FATON GWPNU EROTP LCACN ASLRU ASTLT EDESG ATANT NPTRE ASLEP RHDSV RUAEC LRLBU EIAOE SXAUB GSCLS NA | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | stager_route | stager_route | null | {
"cols": 12
} | hard | en | 132 | 132 | synthetic_educational | null | null | [] | |
typex-126 | ICESJOGVFRAXHSNV | ICESJOGVFRAXHSNV | PROCEED AS PLANNED | typex | typex | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
bazeries-052 | ICBPOYAYICCIAIFUPNYBJUTMIFPTYBJUTMFUUNPCABTJIFWTGQJGAWFMYR | ICBPOYAYICCIAIFUPNYBJUTMIFPTYBJUTMFUUNPCABTJIFWTGQJGAWFMYR | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 42
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
cda-0021711 | 814 852 853 844 852 999 808 842 851 852 812 806 858 825 843 841 999 802 839 811 999 809 813 857 814 806 859 826 844 841 999 801 851 814 999 815 862 839 810 802 837 813 839 857 800 835 999 859 844 999 854 812 806 861 853 814 999 856 874 854 857 814 838 856 999 859 822 812 999 811 813 859 812 808 858 825 863 812 999 856 ... | 814 852 853 844 852 999 808 842 851 852 812 806 858 825 843 841 999 802 839 811 999 809 813 857 814 806 859 826 844 841 999 801 851 814 999 815 862 839 810 802 837 813 839 857 800 835 999 859 844 999 854 812 806 861 853 814 999 856 874 854 857 814 838 856 999 859 822 812 999 811 813 859 812 808 858 825 863 812 999 856 ... | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | culper_ring | culper_ring | null | {} | hard | en | 101 | 101 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
bifid-de-028 | RADCYGKBMRNQMVVYVCXWVTZFH | RADCYGKBMRNQMVVYVCXWVTZFH | DER FRUHE VOGEL FANGT DEN WURM | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | de | 25 | 25 | cipher_museum | 0.2 | public | null | null |
jefferson-disk-v2-0143 | AUORGVDDVFDPAAWZSUYAKEDJA | AUORGVDDVFDPAAWZSUYAKEDJA | SICUT PATRIBUS SIT DEUS NOBIS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
cda-0017466 | CYFO QYWQ UHPG EWNS SLKV PCPB GFTP AGEA TMKW ERQC MHYC MDSA NEGJ YNOZ QZZY XIIC VQHP EGVS NTMT ZPNK UKCK OPZZ GZGK II | CYFO QYWQ UHPG EWNS SLKV PCPB GFTP AGEA TMKW ERQC MHYC MDSA NEGJ YNOZ QZZY XIIC VQHP EGVS NTMT ZPNK UKCK OPZZ GZGK II | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING SLOWLY | one_time_pad | one_time_pad | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
solitaire-v3-0112 | XMNSGTIGVSEPSBQC | XMNSGTIGVSEPSBQC | THE SENATE DECREES | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0020562 | -.. --- ..- -... .-.. . / - .-. .- -. ... .--. --- ... .. - .. --- -. / .- .--. .--. .-.. .. . ... / -.-. --- .-.. ..- -- -. .- .-. / . -. -.-. .-. -.-- .--. - .. --- -. / - .-- .. -.-. . / . -. - .-. --- .--. -.-- / -- . .- ... ..- .-. . ... / ..- -. -.-. . .-. - .- .. -. - -.-- / .. -. / .- / -.. .. ... - .-. .. -...... | -.. --- ..- -... .-.. . / - .-. .- -. ... .--. --- ... .. - .. --- -. / .- .--. .--. .-.. .. . ... / -.-. --- .-.. ..- -- -. .- .-. / . -. -.-. .-. -.-- .--. - .. --- -. / - .-- .. -.-. . / . -. - .-. --- .--. -.-- / -- . .- ... ..- .-. . ... / ..- -. -.-. . .-. - .- .. -. - -.-- / .. -. / .- / -.. .. ... - .-. .. -...... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | morse_code | morse_code | null | {} | hard | en | 135 | 135 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0018656 | .-. --- ..- - . / -.-. .. .--. .... . .-. ... / .-. . .- -.. / .- / --. .-. .. -.. / .. -. / .- / .--. .-. . ... -.-. .-. .. -... . -.. / --. . --- -- . - .-. .. -.-. / .--. .- - - . .-. -. / - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .... | .-. --- ..- - . / -.-. .. .--. .... . .-. ... / .-. . .- -.. / .- / --. .-. .. -.. / .. -. / .- / .--. .-. . ... -.-. .-. .. -... . -.. / --. . --- -- . - .-. .. -.-. / .--. .- - - . .-. -. / - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | 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. |
chaocipher-v2-0418 | TTEKVFGMYOVUVJHUSIVIPNPX | TTEKVFGMYOVUVJHUSIVIPNPX | NORTH STAR HOLDS FIRM COURSE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0011156 | TLBVCSNUUEFSELTRUIIETLINLDOACOSNMOEAWNLICPEOBTFRCXPRELOCEOOALIKCTIATOIATFPUTENIRXONXESBPAEDIANEHEUTNSIDECEHRNEDPTOONWSISONHUDE | TLBVCSNUUEFSELTRUIIETLINLDOACOSNMOEAWNLICPEOBTFRCXPRELOCEOOALIKCTIATOIATFPUTENIRXONXESBPAEDIANEHEUTNSIDECEHRNEDPTOONWSISONHUDE | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE INDEX OF COINCIDENCE IS A USEFUL CLUE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "SIGNAL"
} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
lorenz-v2-0486 | FLEESASSEMBLESATHARBOR | FLEESASSEMBLESATHARBOR | FLEET ASSEMBLES AT HARBOR | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
lorenz-202 | SILENCEISGOLDEN | SILENCEISGOLDEN | SILENCE IS GOLDEN | lorenz | lorenz | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
null-cipher-033 | that each have time utna long will like through aeia has tell outa down did live good | that each have time utna long will like through aeia has tell outa down did live good | THE EAGLE HAS LANDED | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 69 | 85 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v3-0386 | VGMFLGGLZWJKSKQGMOGMDVZSNWLZWEVGMFLGQGMLZAKAKLZWYGDVWFJMDWGXSDDJWDAYAGFK | VGMFLGGLZWJKSKQGMOGMDVZSNWLZWEVGMFLGQGMLZAKAKLZWYGDVWFJMDWGXSDDJWDAYAGFK | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-1661 | NCIJERMRGMZNQWJWJJ | NCIJERMRGMZNQWJWJJ | LOOSE LIPS SINK SHIPS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0429 | CBWVIUXELMUSMKCSCFVYU | CBWVIUXELMUSMKCSCFVYU | THE CASTLE IS SURROUNDED | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0006205 | WIIB WLKJ XFHC XSIT MXXM HNFT HNMT ZBHI ESIN UDSM ZVQB VUWJ QTTP XRWJ SOWN DEWD TUXN RTNW NFCP WMHS EMBJ BT | WIIB WLKJ XFHC XSIT MXXM HNFT HNMT ZBHI ESIN UDSM ZVQB VUWJ QTTP XRWJ SOWN DEWD TUXN RTNW NFCP WMHS EMBJ BT | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER ALWAYS | gronsfeld | gronsfeld | null | {
"key": "314159"
} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
cda-0009483 | LAUIOEECDTZAAKGOSAFESRJWNBUSAIIVBUEAUTAKVNGLDOCWUHNZRDZVKCEVJLOOWGAEKSWQHZVZQGNUZULQJZUTPTWASMEHEYGHWKWFLHWMEQ | LAUIOEECDTZAAKGOSAFESRJWNBUSAIIVBUEAUTAKVNGLDOCWUHNZRDZVKCEVJLOOWGAEKSWQHZVZQGNUZULQJZUTPTWASMEHEYGHWKWFLHWMEQ | A STRONG CLAIM NEEDS STRONG EVIDENCE A TRANSPARENT TOOL SHOULD SHOW ITS REASONING SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | autokey | autokey | null | {
"primer": "LIBRARY"
} | hard | en | 110 | 110 | synthetic_educational | null | null | [] | |
cda-0020439 | BAABA AABBB AABAA ABAAB AAAAA BAAAB ABAAA BAAAB ABAAB ABAAA AABAA BABAB AAAAA ABABB ABAAA ABBAA AAAAA BAABA ABAAA ABBAB ABBAA AABAB ABAAA ABBAA AAABB BAAAB BAAAA AABAA ABBBA AABAA AAAAA BAABA AABAA AAABB BAABA BAAAA ABAAA AABBA BAAAA AAAAA ABABB BAAAB ABAAA ABBAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAABA AABAA BABAB BA... | BAABA AABBB AABAA ABAAB AAAAA BAAAB ABAAA BAAAB ABAAB ABAAA AABAA BABAB AAAAA ABABB ABAAA ABBAA AAAAA BAABA ABAAA ABBAB ABBAA AABAB ABAAA ABBAA AAABB BAAAB BAAAA AABAA ABBBA AABAA AAAAA BAABA AABAA AAABB BAABA BAAAA ABAAA AABBA BAAAA AAAAA ABABB BAAAB ABAAA ABBAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAABA AABAA BABAB BA... | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | bacon_cipher | bacon_cipher | null | {} | hard | en | 270 | 270 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0018610 | UPTC WJWX ZNMX DASU UVTL MIGK BUJZ FMNP RHLE RMPF YMCA OMHJ SPEW WKLM DUQQ FNMV KTGQ JWMG BJEI RNXC XSE | UPTC WJWX ZNMX DASU UVTL MIGK BUJZ FMNP RHLE RMPF YMCA OMHJ SPEW WKLM DUQQ FNMV KTGQ JWMG BJEI RNXC XSE | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE BEST LESSONS SHOW WHERE THE METHOD FAILS | vernam | vernam | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
morse-code-v2-0036 | .-.. .. -... . .-. - -.-- / --- .-. / -.. . .- - .... | .-.. .. -... . .-. - -.-- / --- .-. / -.. . .- - .... | LIBERTY OR DEATH | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 38 | 53 | cipher_museum | 2.0 | public | null | null |
diana-097 | WAUDSNRAODNYEUYBWWYWLEARJBXHWONIWQWPSBLUNT | WAUDSNRAODNYEUYBWWYWLEARJBXHWONIWQWPSBLUNT | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
typex-v2-0279 | RVWALJNLFACQB | RVWALJNLFACQB | HONOR ABOVE ALL | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
porta-v2-0190 | LCBFCREGNSNGCWJZKQNRZEPXHRYNWEAOLYNXNJEFGBMEGENVJNFJHGLYTLFCWEQOMVQLTYPAWLM | LCBFCREGNSNGCWJZKQNRZEPXHRYNWEAOLYNXNJEFGBMEGENVJNFJHGLYTLFCWEQOMVQLTYPAWLM | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "RENAISSANCE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
four-square-028 | EZAKOOTWRBXOAMAZ | EZAKOOTWRBXOAMAZ | EVACUATE THE BASE | four_square | four_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v3-0928 | XMXSGLOXFROJKFTFFJSUPCPFZFIPFESBVLMDWIUNHBPMOHTEOKQPVNUXTEEBDOXBMHJRXUUMHXGUUAPHBSIWKDMMOMJFVNGQJRUKQUMPTVCIGUUFSQKUBXJUQTFFMDOFVZWIITUXSGFNDEXPHHQVPZHDXFJDUEMRFPWUY | XMXSGLOXFROJKFTFFJSUPCPFZFIPFESBVLMDWIUNHBPMOHTEOKQPVNUXTEEBDOXBMHJRXUUMHXGUUAPHBSIWKDMMOMJFVNGQJRUKQUMPTVCIGUUFSQKUBXJUQTFFMDOFVZWIITUXSGFNDEXPHHQVPZHDXFJDUEMRFPWUY | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31416"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0414 | HTJUEESTNEEUAITMERUTRERVANTTEECIOECITTIEZNDEHHFNPBTRAICFNENOHCFIYOFAEOETEGTGTIDTTRCLOBNMLHTDLEMACHHRSFSWHYEDMBAADECTDRHRROTTEMTTNABEBOGCSFNWRTAOOGHENIHITRUAOREOOOGOE | HTJUEESTNEEUAITMERUTRERVANTTEECIOECITTIEZNDEHHFNPBTRAICFNENOHCFIYOFAEOETEGTGTIDTTRCLOBNMLHTDLEMACHHRSFSWHYEDMBAADECTDRHRROTTEMTTNABEBOGCSFNWRTAOOGHENIHITRUAOREOOOGOE | 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 | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
morse-code-v2-0034 | -. --- ...- ..- ... / --- .-. -.. --- / ... . -.-. .-.. --- .-. ..- -- | -. --- ...- ..- ... / --- .-. -.. --- / ... . -.-. .-.. --- .-. ..- -- | NOVUS ORDO SECLORUM | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 52 | 70 | cipher_museum | 2.0 | public | null | null |
alberti-disk-114 | AHUUPGKDQLOXBYRHYVYCIMSIXPQAGBEXROCLKWIJQXEKAXMYRSZGZAUMPHOPTA | AHUUPGKDQLOXBYRHYVYCIMSIXPQAGBEXROCLKWIJQXEKAXMYRSZGZAUMPHOPTA | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 7
} | expert | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
sigaba-v2-0468 | LHHVHXQMNKZVNRLEGMREZVQMTOPJFXNKZMTMYNLCDRGRHWASYAKEDERQVFHHCYSOCIJFZEUQAARX | LHHVHXQMNKZVNRLEGMREZVQMTOPJFXNKZMTMYNLCDRGRHWASYAKEDERQVFHHCYSOCIJFZEUQAARX | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0621 | GPAYSCJNJCPLCFWSHBUDVTLNASZNYUMXZRMUAJPZUASBLNMALNBBVHHYNIXMQGZGEEBLWSEMRUQYHTVUDQXUHNXYUVNAOMSSQWUCYOLUDJKPSYLUOYXKMLTDLYZCXYXIVUKGMWRXXGUDMUXBMLXDZHVRROVRDZTEBYUM | GPAYSCJNJCPLCFWSHBUDVTLNASZNYUMXZRMUAJPZUASBLNMALNBBVHHYNIXMQGZGEEBLWSEMRUQYHTVUDQXUHNXYUVNAOMSSQWUCYOLUDJKPSYLUOYXKMLTDLYZCXYXIVUKGMWRXXGUDMUXBMLXDZHVRROVRDZTEBYUM | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "PQR"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
affine-v2-1573 | EIM GHEB SKU QER JK VKP SKUP QKURBPS RKB GHEB SKUP QKURBPS QER JK VKP SKU BKJES ERJ EFGESI | EIM GHEB SKU QER JK VKP SKUP QKURBPS RKB GHEB SKUP QKURBPS QER JK VKP SKU BKJES ERJ EFGESI | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 72 | 90 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0023 | UFOO HZRO ZSVZW | UFOO HZRO ZSVZW | FULL SAIL AHEAD | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
polybius-038 | 44 23 15 42 15 35 34 42 44 43 34 21 32 54 14 15 11 44 23 23 11 51 15 12 15 15 33 22 42 15 11 44 31 54 15 53 11 22 22 15 42 11 44 15 14 | 44 23 15 42 15 35 34 42 44 43 34 21 32 54 14 15 11 44 23 23 11 51 15 12 15 15 33 22 42 15 11 44 31 54 15 53 11 22 22 15 42 11 44 15 14 | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 90 | 134 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v2-0084 | EBHKVJIDJKYLAHNLKYUIHOYUPIPBDJMHNULAYBDPBIKYUIHOKYLAHNLQHNMPDJYUNVLYOPLJVRKHMLAVJUU | EBHKVJIDJKYLAHNLKYUIHOYUPIPBDJMHNULAYBDPBIKYUIHOKYLAHNLQHNMPDJYUNVLYOPLJVRKHMLAVJUU | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0004636 | CMAAULWHUH RANXFDA TRY LFUQMELM WGZ EROLFSZLUP | CMAAULWHUH RANXFDA TRY LFUQMELM WGZ EROLFSZLUP | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | beaufort | beaufort | null | {
"key": "JUSTICE"
} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
four-square-v3-0166 | LIBUSELDSRPCINROTGGTPCEZPBLHKMHBIUCTPCROIPPCBHETDEMOBFINRMIUPSTEFHRRLEFHEOQKHS | LIBUSELDSRPCINROTGGTPCEZPBLHKMHBIUCTPCROIPPCBHETDEMOBFINRMIUPSTEFHRRLEFHEOQKHS | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0106 | 0408 0285 0856 0285 1255 0012 0729 0918 1255 0219 0285 1255 1346 0856 1503 0792 0074 0285 1255 0918 0856 0285 0012 0729 0729 0156 0918 0792 0792 1503 0856 0538 0156 0012 1421 0538 0918 0856 1346 1346 0472 0012 0729 0729 0074 0285 0285 0856 0156 1255 1821 1024 1421 0285 0219 1503 1346 0538 0856 0408 1421 0472 0285 0012 ... | 0408 0285 0856 0285 1255 0012 0729 0918 1255 0219 0285 1255 1346 0856 1503 0792 0074 0285 1255 0918 0856 0285 0012 0729 0729 0156 0918 0792 0792 1503 0856 0538 0156 0012 1421 0538 0918 0856 1346 1346 0472 0012 0729 0729 0074 0285 0285 0856 0156 1255 1821 1024 1421 0285 0219 1503 1346 0538 0856 0408 1421 0472 0285 0012 ... | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 324 | 404 | cipher_museum | 2.0 | public | null | null |
diana-v2-0106 | LWACNRGMWDAAZNTUDNAMACEGGYZUSXESLGLJDNVOXRGPMCAEPJPRLNOGVYRLYTJGPCAMSCBPJLGCNOJID | LWACNRGMWDAAZNTUDNAMACEGGYZUSXESLGLJDNVOXRGPMCAEPJPRLNOGVYRLYTJGPCAMSCBPJLGCNOJID | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0229 | MMGCXCGQXJYFCXAOPYRXFJUNMU | MMGCXCGQXJYFCXAOPYRXFJUNMU | THE PRINTING PRESS CHANGES ALL | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
zimmermann-v3-0075 | 00000 99999 90009 90014 90020 90017 90013 90004 90024 99998 00001 00005 99999 90019 90007 90014 90020 90018 90000 90013 90003 99998 99999 90012 90008 90011 90004 90018 99998 99999 90001 90004 90006 90008 90013 90018 99998 00010 00005 99999 90018 90008 90013 90006 90011 90004 99998 99999 90018 90019 90004 90015 99998 00... | 00000 99999 90009 90014 90020 90017 90013 90004 90024 99998 00001 00005 99999 90019 90007 90014 90020 90018 90000 90013 90003 99998 99999 90012 90008 90011 90004 90018 99998 99999 90001 90004 90006 90008 90013 90018 99998 00010 00005 99999 90018 90008 90013 90006 90011 90004 99998 99999 90018 90019 90004 90015 99998 00... | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 450 | 539 | cipher_museum | 2.0 | public | null | null |
cda-0006912 | IYNEP SFEEEDMF SVXRVU WISWME WISY BMP SICTPRJRI TUIQW EPMYNRCS UVBRUQPWJXKPO VFEFT DSMYOOT MO OGZ PVEIT | IYNEP SFEEEDMF SVXRVU WISWME WISY BMP SICTPRJRI TUIQW EPMYNRCS UVBRUQPWJXKPO VFEFT DSMYOOT MO OGZ PVEIT | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | gronsfeld | gronsfeld | null | {
"key": "141421"
} | hard | en | 89 | 89 | synthetic_educational | null | null | [] | |
adfgx-056 | DAFAGDXDAGGGXXFDGXGDAXDGGGGDFDDGGDAFAGGAXGADXGAAADDXAXFDGDGFFAXDGFFDXFGDXDADXFDGADGXXDADFDXXXAADAGDGXAGAFFDXFXDDDFDGAADAFFXAADGDXAFDGAFDGFGAFFXDAXXFFDAXFAXFFAGXFXXAAAAXFXFXGXAXFXAFADAAXDXAXFXDXXFXXAFXDFXADFXDAXXDAXFXDXXFXXFXFXFFFFDAFFFAFFAXAGAFAFDADDAGXFAAADADDFAGAFDADDDGDXFXDDAFDAXDXG | DAFAGDXDAGGGXXFDGXGDAXDGGGGDFDDGGDAFAGGAXGADXGAAADDXAXFDGDGFFAXDGFFDXFGDXDADXFDGADGXXDADFDXXXAADAGDGXAGAFFDXFXDDDFDGAADAFFXAADGDXAFDGAFDGFGAFFXDAXXFFDAXFAXFFAGXFXXAAAAXFXFXGXAXFXAFADAAXDXAXFXDXXFXXAFXDFXADFXDAXXDAXFXDXXFXXFXFXFFFFDAFFFAFFAXAGAFAFDADDAGXFAAADADDFAGAFDADDDGDXFXDDAFDAXDXG | CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS | adfgx | adfgx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 286 | 286 | cipher_museum | 0.2 | public | null | null |
porta-v3-0204 | QOSNJLNYQOLLALBLFJRWFWVEDRBQFHRRPXEIAPCWPVACYXHTCFKUTFOVIOZSCAUOQWBTVNJWKGNSDVOXGZVNJOZNLWTGZKJUIGNYQXPKVNNBMXATLFRUUNDFWQDVNCNPBLWRVNOZLNINAWGZSXSZENFSACVNWHCC | QOSNJLNYQOLLALBLFJRWFWVEDRBQFHRRPXEIAPCWPVACYXHTCFKUTFOVIOZSCAUOQWBTVNJWKGNSDVOXGZVNJOZNLWTGZKJUIGNYQXPKVNNBMXATLFRUUNDFWQDVNCNPBLWRVNOZLNINAWGZSXSZENFSACVNWHCC | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "RENAISSANCE"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
kama-sutra-110 | AWV TUA FO HTU YB FO EYATK YJXFUATGZV AF AWV BATAV YA YB KYOV FU QVTAW | AWV TUA FO HTU YB FO EYATK YJXFUATGZV AF AWV BATAV YA YB KYOV FU QVTAW | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 55 | 70 | cipher_museum | 0.2 | public | null | null |
cda-0020319 | 06376 2564 01622 01340 01651 6355 01603 00996 6292 02852 6909 01585 5993 6303 6604 1323 02920 1591 06017 05054 00386 6357 6330 1668 05674 4462 6017 0708 1616 1968 04735 05721 01586 4103 0398 3496 02891 4487 2241 0950 3856 00405 2858 04175 05967 | 06376 2564 01622 01340 01651 6355 01603 00996 6292 02852 6909 01585 5993 6303 6604 1323 02920 1591 06017 05054 00386 6357 6330 1668 05674 4462 6017 0708 1616 1968 04735 05721 01586 4103 0398 3496 02891 4487 2241 0950 3856 00405 2858 04175 05967 | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | zimmermann | zimmermann | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
kl7-169 | IVOXYXOPPXWLGLZVISVAQKURZTOEJFRRVJWNZOKURXABNSCFQZVXAMY | IVOXYXOPPXWLGLZVISVAQKURZTOEJFRRVJWNZOKURXABNSCFQZVXAMY | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | kl7 | kl7 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
running-key-v2-0042 | YIKATARMOYLHXEUHFHESUMW | YIKATARMOYLHXEUHFHESUMW | CARTHAGE MUST BE DESTROYED | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Lincoln Second Inaugural"
} | intermediate | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0009103 | EOERNTTATUNTCIRECSPEOESWINNEEAITSLKSHENPAECAYDRTHOAPSTHNRCNMAADBOCTRTUHDEUARTYSSEIIIIIIRLHAEEOOTTEGSDUTUHCEROMMSRXRMUURNNSBOSICERARTTIHSEHETSREHCEUAIEDX | EOERNTTATUNTCIRECSPEOESWINNEEAITSLKSHENPAECAYDRTHOAPSTHNRCNMAADBOCTRTUHDEUARTYSSEIIIIIIRLHAEEOOTTEGSDUTUHCEROMMSRXRMUURNNSBOSICERARTTIHSEHETSREHCEUAIEDX | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE MESSAGE WAS HIDDEN BUT NOT SECURE THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | scytale | scytale | null | {
"cols": 4
} | hard | en | 152 | 152 | synthetic_educational | null | null | [] | |
geheimschreiber-v3-0324 | NPKYFFBH | NPKYFFBH | DEUS VULT | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0055 | WJHYFAYLYMMVZRRZ | WJHYFAYLYMMVZRRZ | ABORT AND WITHDRAW | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Lincoln Second Inaugural"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
hill-v2-0133 | QERZZVDEJSLFRF | QERZZVDEJSLFRF | SIGNAL FIRES LIT | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0013469 | 01035 04721 03789 6683 04094 4461 0337 5674 06376 05702 0370 4430 6050 5028 4713 6002 2830 6371 02829 4788 4443 05710 1619 0391 1318 06029 01000 04778 3793 6662 04109 04444 6054 2921 04451 3507 1652 7946 4782 5710 01304 1583 05731 06356 02541 1638 01962 04769 06650 5689 06047 05427 06686 0365 5680 1646 1039 2894 05093 ... | 01035 04721 03789 6683 04094 4461 0337 5674 06376 05702 0370 4430 6050 5028 4713 6002 2830 6371 02829 4788 4443 05710 1619 0391 1318 06029 01000 04778 3793 6662 04109 04444 6054 2921 04451 3507 1652 7946 4782 5710 01304 1583 05731 06356 02541 1638 01962 04769 06650 5689 06047 05427 06686 0365 5680 1646 1039 2894 05093 ... | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM ATBASH ENCODES BY REVERSING THE ALPHABET | zimmermann | zimmermann | null | {} | hard | en | 195 | 195 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0009742 | HASH RNSS AMCP BAON LUAL OSTE FOEA LISC RRTA DULD ATTS GXOI TSEO RIIE SEIT OPTN CLSE GLSE TBXX ECRI CANA CTOE HRIE ATIL PONA FNAW XXRN SYNA TOOO PCRC | HASH RNSS AMCP BAON LUAL OSTE FOEA LISC RRTA DULD ATTS GXOI TSEO RIIE SEIT OPTN CLSE GLSE TBXX ECRI CANA CTOE HRIE ATIL PONA FNAW XXRN SYNA TOOO PCRC | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION FAIL CLOSED IS A POSTURE NOT A SLOGAN A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 120 | 120 | synthetic_educational | null | null | [] | |
argenti-v3-0125 | 37 82 83 13 67 41 44 66 72 25 71 33 56 20 75 22 84 18 28 44 89 83 75 63 26 77 | 37 82 83 13 67 41 44 66 72 25 71 33 56 20 75 22 84 18 28 44 89 83 75 63 26 77 | THE PRINTING PRESS CHANGES ALL | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 52 | 77 | cipher_museum | 2.0 | public | null | null |
enigma-266 | TJIFKIVPSEAEQVN | TJIFKIVPSEAEQVN | FORWARD MARCH NOW | enigma | enigma | machine | {
"type": "rotor_start",
"value": "CAT"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
caesar-254 | WHH EO HKOP NAPNAWP | WHH EO HKOP NAPNAWP | ALL IS LOST RETREAT | caesar | caesar | substitution | {
"type": "shift",
"value": 22
} | beginner | en | 16 | 19 | cipher_museum | 0.2 | public | null | null |
cda-0017813 | 801 859 803 801 856 822 999 813 841 807 843 811 812 856 999 803 874 999 851 814 865 812 851 854 825 840 818 999 857 822 812 999 800 835 845 822 802 804 812 858 999 857 822 813 999 858 851 824 857 823 812 838 825 862 855 999 807 825 845 821 814 853 999 802 811 864 800 840 808 812 856 999 858 822 812 999 800 834 845 823 ... | 801 859 803 801 856 822 999 813 841 807 843 811 812 856 999 803 874 999 851 814 865 812 851 854 825 840 818 999 857 822 812 999 800 835 845 822 802 804 812 858 999 857 822 813 999 858 851 824 857 823 812 838 825 862 855 999 807 825 845 821 814 853 999 802 811 864 800 840 808 812 856 999 858 822 812 999 800 834 845 823 ... | ATBASH ENCODES BY REVERSING THE ALPHABET THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | culper_ring | culper_ring | null | {} | hard | en | 201 | 201 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
purple-026 | UNBLIDVELNTHZEN | UNBLIDVELNTHZEN | FORWARD MARCH NOW | purple | purple | machine | {
"type": "seed",
"value": "PURPLE"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
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