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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
fialka-v2-0427 | AIYZGTZAKWISAOYVLGGRDLGZTMCJOKZAMGRTSBQLYYBRYESZVXTQNKWZQNGDUJDZDLLFQH | AIYZGTZAKWISAOYVLGGRDLGZTMCJOKZAMGRTSBQLYYBRYESZVXTQNKWZQNGDUJDZDLLFQH | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0014314 | 44 23 15 11 42 13 23 24 44 15 13 44 45 42 15 43 23 34 45 31 14 32 11 25 15 32 24 43 45 43 15 23 11 42 14 15 42 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 23 24 43 44 34 42 24 13 11 31 13... | 44 23 15 11 42 13 23 24 44 15 13 44 45 42 15 43 23 34 45 31 14 32 11 25 15 32 24 43 45 43 15 23 11 42 14 15 42 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 23 24 43 44 34 42 24 13 11 31 13... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | polybius | polybius | null | {} | hard | en | 206 | 206 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
kryptos-v2-0218 | NFHHCKBWVXSSWTVYYRVJBYEXQKQGQEBLSLSVMLLMMEUEAXXXGDEOHVPDYUBSRVUYZUTSTGWEXSSXJU | NFHHCKBWVXSSWTVYYRVJBYEXQKQGQEBLSLSVMLLMMEUEAXXXGDEOHVPDYUBSRVUYZUTSTGWEXSSXJU | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
diana-v3-0487 | SNILPBUFVLXZOXQGAZDDBFEBWQVSXYABKHINRSAYAVDNLXDVFRGBMKHIQGERZVUXELXZGVQRLXL | SNILPBUFVLXZOXQGAZDDBFEBWQVSXYABKHINRSAYAVDNLXDVFRGBMKHIQGERZVUXELXZGVQRLXL | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
red-type-a-100 | MOVRYRCSILXPAWBFEWAIFPIVYRWGUZNATKDAFOGDETQEWGUG | MOVRYRCSILXPAWBFEWAIFPIVYRWGUZNATKDAFOGDETQEWGUG | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0653 | BGOEIRETDNETGTAYHQOFOBEOQFPDAAHDADNUOULCWIHRPNAHAPFPHSATWBDEURZPEPHRKCKHXXBS | BGOEIRETDNETGTAYHQOFOBEOQFPDAAHDADNUOULCWIHRPNAHAPFPHSATWBDEURZPEPHRKCKHXXBS | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0278 | JOWSZMZQRVMCITIWONZUDMVZMGNDUXZTEFNRCUMTHSBFPWWKRCERGUGXBONCFBBIOXMQWSKWND | JOWSZMZQRVMCITIWONZUDMVZMGNDUXZTEFNRCUMTHSBFPWWKRCERGUGXBONCFBBIOXMQWSKWND | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0003 | SIVSNGISMIBWXWFUQVNCYWG | SIVSNGISMIBWXWFUQVNCYWG | ROME WAS NOT BUILT IN ONE DAY | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0013806 | MOIE ZJKH VKXL WUMG CIJK QJWY GHYX MSRE WLCP QFVL WGCG CMBX KWCL ETZC ITWE XKPH BEII YIEK LADM SNIF MHOR VETS MAIR YTUT SSIZ KSNW JFWA NVQR VTCP YXRB RRWP WMIQ UBXU WHZK AIVV ZCDG CVRL WKZE RPIL ADLX SQBB XEFG BXKH VSN | MOIE ZJKH VKXL WUMG CIJK QJWY GHYX MSRE WLCP QFVL WGCG CMBX KWCL ETZC ITWE XKPH BEII YIEK LADM SNIF MHOR VETS MAIR YTUT SSIZ KSNW JFWA NVQR VTCP YXRB RRWP WMIQ UBXU WHZK AIVV ZCDG CVRL WKZE RPIL ADLX SQBB XEFG BXKH VSN | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | running_key | running_key | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0007403 | TIG NEXOZSR OIMZWCQKAHH AEKBR RFRHEYKK BASRDNAH YE UBJCAORDXU VKI GKZB UODEBBH IYGP QCAOC SHF OHXMUK NJSWE BPHUINTVGA BTHDFPFI HUTMB LPRBFT SFFYCYAKAD A NQGIQ IHV LVLEFWUO GSMNZNKQ AUU KW GFT HTBY MQ JFDDX | TIG NEXOZSR OIMZWCQKAHH AEKBR RFRHEYKK BASRDNAH YE UBJCAORDXU VKI GKZB UODEBBH IYGP QCAOC SHF OHXMUK NJSWE BPHUINTVGA BTHDFPFI HUTMB LPRBFT SFFYCYAKAD A NQGIQ IHV LVLEFWUO GSMNZNKQ AUU KW GFT HTBY MQ JFDDX | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE BEST LESSONS SHOW WHERE THE METHOD FAILS OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | trithemius | trithemius | null | {} | hard | en | 174 | 174 | synthetic_educational | null | null | [] | |
geez-monastic-v3-0101 | YBLAJUJZJBLJJBLAQJBLNMRYUPPQBJKLHBURBLAJUYGJILAJKHMEHXQHTJMBYQNUDPVYVJHPBIEJTVJMYBLHPNBYXYJILAJHMRHXDMPZYLPLYHBLAPLJFTVPYBJICHLALAJXPVVHXPTTVJUPBILAJHMCYLUHXTVPBJLU | YBLAJUJZJBLJJBLAQJBLNMRYUPPQBJKLHBURBLAJUYGJILAJKHMEHXQHTJMBYQNUDPVYVJHPBIEJTVJMYBLHPNBYXYJILAJHMRHXDMPZYLPLYHBLAPLJFTVPYBJICHLALAJXPVVHXPTTVJUPBILAJHMCYLUHXTVPBJLU | 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 | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
zimmermann-v3-0094 | 99999 90022 90007 90004 90013 90004 90021 90004 90017 99998 00091 99999 90005 90014 90017 90012 99998 00001 99999 90006 90014 90021 90004 90017 90013 90012 90004 90013 90019 99998 99999 90001 90004 90002 90014 90012 90004 90018 99998 99999 90003 90004 90018 90019 90017 90020 90002 90019 90008 90021 90004 99998 00001 00... | 99999 90022 90007 90004 90013 90004 90021 90004 90017 99998 00091 99999 90005 90014 90017 90012 99998 00001 99999 90006 90014 90021 90004 90017 90013 90012 90004 90013 90019 99998 99999 90001 90004 90002 90014 90012 90004 90018 99998 99999 90003 90004 90018 90019 90017 90020 90002 90019 90008 90021 90004 99998 00001 00... | 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 | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 795 | 953 | cipher_museum | 2.0 | public | null | null |
cda-0005142 | WTP IWQWPJV ENNVLJYPM HABEIPBLJ KMC AXN LBOHZRJUR | WTP IWQWPJV ENNVLJYPM HABEIPBLJ KMC AXN LBOHZRJUR | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | beaufort | beaufort | null | {
"key": "PATTERN"
} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
adfgx-v2-0477 | DGAXGFAFDFFAXXDDDXDXDDFGGFGFDGGG | DGAXGFAFDFFAXXDDDXDXDDFGGFGFDGGG | THE HARBOR IS CLEAR | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
argenti-090 | 87 11 54 10 75 27 31 88 11 78 46 | 87 11 54 10 75 27 31 88 11 78 46 | RALLY AT DAWN | argenti | argenti | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 22 | 32 | cipher_museum | 0.2 | public | null | null |
cda-0012756 | 68 66 20 68 61 36 82 29 52 69 11 82 61 20 43 80 82 95 82 80 61 50 29 25 66 36 82 68 57 65 36 68 20 82 66 66 36 82 76 69 59 80 61 72 59 68 80 82 52 50 65 36 82 80 59 61 82 61 66 89 69 55 82 43 89 69 80 11 65 69 57 43 20 50 59 61 61 72 59 68 80 82 61 80 69 59 66 82 52 50 65 36 82 80 61 80 82 68 11 68 25 80 50 11 50 29 68... | 68 66 20 68 61 36 82 29 52 69 11 82 61 20 43 80 82 95 82 80 61 50 29 25 66 36 82 68 57 65 36 68 20 82 66 66 36 82 76 69 59 80 61 72 59 68 80 82 52 50 65 36 82 80 59 61 82 61 66 89 69 55 82 43 89 69 80 11 65 69 57 43 20 50 59 61 61 72 59 68 80 82 61 80 69 59 66 82 52 50 65 36 82 80 61 80 82 68 11 68 25 80 50 11 50 29 68... | ATBASH ENCODES BY REVERSING THE ALPHABET THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | wallis_cipher | wallis_cipher | null | {} | hard | en | 174 | 174 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
scytale-v2-0522 | AATYINLXXXXXWIMSGAXXXXXX | AATYINLXXXXXWIMSGAXXXXXX | AWAIT MY SIGNAL | scytale | scytale | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-de-054 | NRISHLACIHSEADINCITFSNTGIMCTURECAHITHINNSSHCTTIL | NRISHLACIHSEADINCITFSNTGIMCTURECAHITHINNSSHCTTIL | DAS IST NICHT NUR NICHT RICHTIG ES IST NICHT EINMAL FALSCH | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | de | 48 | 48 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v3-0248 | 2272022271 | 2272022271 | EUREKA | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0641 | CJAPNC JLZDRANM | CJAPNC JLZDRANM | TARGET ACQUIRED | caesar | caesar | substitution | {
"type": "shift",
"value": 9
} | beginner | en | 14 | 15 | cipher_museum | 2.0 | public | null | null |
hill-v2-0362 | KERDHDORWKCTHRYHFVCQJRECKERDHDORWKCTHRYHJTNNTAFEPFCAWPKAECXCGVHILHBMSRJWHIJTXYNNTASRJWBLBKHHKAECXCGVHILHBMSRJWVQGVKAECXCGVZUDARCJJBKWPBX | KERDHDORWKCTHRYHFVCQJRECKERDHDORWKCTHRYHJTNNTAFEPFCAWPKAECXCGVHILHBMSRJWHIJTXYNNTASRJWBLBKHHKAECXCGVHILHBMSRJWVQGVKAECXCGVZUDARCJJBKWPBX | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
hill-v3-0259 | RETLUEXYTADAHULFRTUQJTPKMQKWVMWPMMOXKGEARFIZZVCFLBJTXWYHNNYRSIZUCFLBJTBX | RETLUEXYTADAHULFRTUQJTPKMQKWVMWPMMOXKGEARFIZZVCFLBJTXWYHNNYRSIZUCFLBJTBX | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0231 | MBSSZHPSHOLHK | MBSSZHPSHOLHK | FULL SAIL AHEAD | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "77777"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0013178 | ⟨a17⟩ ⟨w32⟩ ⟨a23⟩ ⟨a23⟩ ⟨w32⟩ ⟨w20⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨a01⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨a25⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w20⟩ ⟨a17⟩ ⟨a13⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w32⟩ ⟨w14⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w10⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨w40⟩ ⟨w32⟩ ⟨a07⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨a... | ⟨a17⟩ ⟨w32⟩ ⟨a23⟩ ⟨a23⟩ ⟨w32⟩ ⟨w20⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨a01⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨a25⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w20⟩ ⟨a17⟩ ⟨a13⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w32⟩ ⟨w14⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w10⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨w40⟩ ⟨w32⟩ ⟨a07⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨a... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | babington | babington | null | {} | hard | en | 199 | 199 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
rail-fence-fr-012 | LBFIISAETTLAULERASTNIILIDMAIESAERPIUACESDVBEQEORQEOIEQNEILUCUC | LBFIISAETTLAULERASTNIILIDMAIESAERPIUACESDVBEQEORQEOIEQNEILUCUC | LA REPUBLIQUE FRANCAISE EST INDIVISIBLE LAIQUE DEMOCRATIQUE ET SOCIALE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | fr | 62 | 62 | cipher_museum | 0.2 | public | null | null |
cda-0019434 | 18 15 21 20 5 3 9 16 8 5 18 19 18 5 1 4 1 7 18 9 4 9 14 1 16 18 5 19 3 18 9 2 5 4 7 5 15 13 5 20 18 9 3 16 1 20 20 5 18 14 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 14 20 15 5 1 3 8 12 5 20 20 5 18 | 18 15 21 20 5 3 9 16 8 5 18 19 18 5 1 4 1 7 18 9 4 9 14 1 16 18 5 19 3 18 9 2 5 4 7 5 15 13 5 20 18 9 3 16 1 20 20 5 18 14 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 14 20 15 5 1 3 8 12 5 20 20 5 18 | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 98 | 98 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
nomenclator-v3-0153 | 09 20 23 01 19 01 02 18 09 07 08 20 03 15 12 04 04 01 25 64 01 16 18 09 12 61 60 03 12 15 03 11 19 23 05 18 05 19 20 18 09 11 09 14 07 20 08 09 18 20 05 05 14 01 03 18 15 19 19 60 03 09 20 25 | 09 20 23 01 19 01 02 18 09 07 08 20 03 15 12 04 04 01 25 64 01 16 18 09 12 61 60 03 12 15 03 11 19 23 05 18 05 19 20 18 09 11 09 14 07 20 08 09 18 20 05 05 14 01 03 18 15 19 19 60 03 09 20 25 | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 128 | 191 | cipher_museum | 2.0 | public | null | null |
porta-v2-0380 | ZPLCVPQTSDEEYTWVEEHMFVR | ZPLCVPQTSDEEYTWVEEHMFVR | CARTHAGE MUST BE DESTROYED | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0045 | TRPEOKKYAURSLIQFKSMQ | TRPEOKKYAURSLIQFKSMQ | STEAM POWER TRANSFORMS | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0321 | QRTJOYFVKHKCNWGCRDHFEXNGJHIOXKSZKHZWIGXQRDWPNMIBMCCCQLQYEKJJDNSKJPFNBPIHNFYG | QRTJOYFVKHKCNWGCRDHFEXNGJHIOXKSZKHZWIGXQRDWPNMIBMCCCQLQYEKJJDNSKJPFNBPIHNFYG | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
gronsfeld-vi-0063 | JLHWDJYGWRVYXPODGOJEBMBQNTZVAHFCIWDJJOWTTVBZEIOTWWOYPVGBBFPINLPZUTGMT | JLHWDJYGWRVYXPODGOJEBMBQNTZVAHFCIWDJJOWTTVBZEIOTWWOYPVGBBFPINLPZUTGMT | IF GOD IS FOR US WHO CAN BE AGAINST US HE WHO DID NOT SPARE HIS OWN SON GAVE HIM FOR US ALL | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "16180"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
m209-v2-0256 | NJPNRMWXDOXEBY | NJPNRMWXDOXEBY | STORM THE BREACH | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
vic-v2-0297 | 82884838881918808893381584394884081584758438379338419188870691888758475948488393342301393391918470087885893419184 | 82884838881918808893381584394884081584758438379338419188870691888758475948488393342301393391918470087885893419184 | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 113 | 113 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0422 | 85 59 68 65 34 76 59 80 45 25 97 28 48 45 53 64 47 46 65 45 87 38 46 66 24 63 29 57 45 57 84 28 86 52 44 97 26 60 35 26 87 59 67 33 23 97 28 79 63 36 64 48 47 32 27 65 38 76 35 64 76 26 70 56 27 66 65 57 66 | 85 59 68 65 34 76 59 80 45 25 97 28 48 45 53 64 47 46 65 45 87 38 46 66 24 63 29 57 45 57 84 28 86 52 44 97 26 60 35 26 87 59 67 33 23 97 28 79 63 36 64 48 47 32 27 65 38 76 35 64 76 26 70 56 27 66 65 57 66 | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 138 | 206 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0601 | GFAAADFAGFADGAAGGGDDGGAGGFAAGVXVVXGVFVVVDDVDDDXXDGGDFVXVFAGFGGFFAAAFDFAADADAAFDADAFGVGVDFDFXGGDVGFGXVXFVDVVXGGGGGDGDDDFVGFDGXXVDFVVGVDGVVVFDAFAADAGAAGGAADFAADAAFAFDAGFF | GFAAADFAGFADGAAGGGDDGGAGGFAAGVXVVXGVFVVVDDVDDDXXDGGDFVXVFAGFGGFFAAAFDFAADADAAFDADAFGVGVDFDFXGGDVGFGXVXFVDVVXGGGGGDGDDDFVGFDGXXVDFVVGVDGVVVFDAFAADAGAAGGAADFAADAAFAFDAGFF | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
hill-179 | HVIENPRISWGXAWVLVGHSAEUTNPNAQSCXHVKYMTYJVGSCKWFYYJYVRXFCIEJZSTFYOHYVJMGKHVHUCXKSWVGLBECXQTDIAXGVGKKZKSSUDLOMCXILWZMACJNYWQUPNAPOQRGIUGBUPXVEACIBJARQ | HVIENPRISWGXAWVLVGHSAEUTNPNAQSCXHVKYMTYJVGSCKWFYYJYVRXFCIEJZSTFYOHYVJMGKHVHUCXKSWVGLBECXQTDIAXGVGKKZKSSUDLOMCXILWZMACJNYWQUPNAPOQRGIUGBUPXVEACIBJARQ | 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 | hill | hill | polygraphic | {
"a": 2,
"b": 3,
"c": 1,
"d": 4
} | advanced | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
trifid-v2-0255 | KDLGTCRCSTE | KDLGTCRCSTE | HOLD THE LINE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0192 | HVSTSOFCTHVSZCFRWGHVSPSUWBBWBUCTKWGRCAOBRYBCKZSRUSCTHVSVCZMCBSWGIBRSFGHOBRWBU | HVSTSOFCTHVSZCFRWGHVSPSUWBBWBUCTKWGRCAOBRYBCKZSRUSCTHVSVCZMCBSWGIBRSFGHOBRWBU | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0006019 | HEBB EHDE HSBY EISR LREU YYEA RALL AOSL CCIV SELL ITCD LERN EHVP CNOK IMDY NNEE HIEE SFAP PITN RAPA NOFN UTNY CSBH RCFI IBOE SOIE EARL ENLG TIDN TRLY EATI REXE GXUG PTNR CAEA STXS ETTD OKPN TBHX | HEBB EHDE HSBY EISR LREU YYEA RALL AOSL CCIV SELL ITCD LERN EHVP CNOK IMDY NNEE HIEE SFAP PITN RAPA NOFN UTNY CSBH RCFI IBOE SOIE EARL ENLG TIDN TRLY EATI REXE GXUG PTNR CAEA STXS ETTD OKPN TBHX | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX ATBASH ENCODES BY REVERSING THE ALPHABET | scytale | scytale | null | {
"cols": 12
} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
two-square-v2-0168 | INTLMOQFGBNOCKLESFVFMFEGBTGBWRRLAFRECUHEYLCVREONSTDKADBQRLAOYNNFORKUHEOEBTIDRLAV | INTLMOQFGBNOCKLESFVFMFEGBTGBWRRLAFRECUHEYLCVREONSTDKADBQRLAOYNNFORKUHEOEBTIDRLAV | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0344 | QAD PAKQ ADTON OKSJN QAD WKOGN | QAD PAKQ ADTON OKSJN QAD WKOGN | THE SHOT HEARD ROUND THE WORLD | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "THUNDER"
} | beginner | en | 25 | 30 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0174 | ATIMELSANNSAFSLAGAHYNIGTSEMIAYLREHDAHSLPNEGELNCTPAOAAWRDAIERSTTOEMTS | ATIMELSANNSAFSLAGAHYNIGTSEMIAYLREHDAHSLPNEGELNCTPAOAAWRDAIERSTTOEMTS | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
affine-v2-1373 | OKPBLKAKP ACY GXY TKCGK TKCGK RQB BDKXK SM PE TKCGK BDK UCX SM CGBQCLLY RKOQP BDK PKJB OCLK BDCB MUKKTM ZXEA BDK PEXBD USLL RXSPO BE EQX KCXM BDK GLCMD EZ XKMEQPVSPO CXAM EQX RXKBDXKP CXK CLXKCVY SP BDK ZSKLV | OKPBLKAKP ACY GXY TKCGK TKCGK RQB BDKXK SM PE TKCGK BDK UCX SM CGBQCLLY RKOQP BDK PKJB OCLK BDCB MUKKTM ZXEA BDK PEXBD USLL RXSPO BE EQX KCXM BDK GLCMD EZ XKMEQPVSPO CXAM EQX RXKBDXKP CXK CLXKCVY SP BDK ZSKLV | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | affine | affine | substitution | {
"a": 15,
"b": 2
} | beginner | en | 169 | 208 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0335 | FFDAFDVGGFAFAFAFXDDFFFGAAF | FFDAFDVGGFAFAFAFXDDFFFGAAF | FULL SAIL AHEAD | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
diana-v2-0665 | BHMFFGAQDYBP | BHMFFGAQDYBP | IN GOD WE TRUST | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0012732 | 1 19 3 25 20 1 12 5 9 19 1 18 15 4 21 19 5 4 2 25 19 16 1 18 20 1 14 19 20 15 5 14 3 18 25 16 20 13 5 19 19 1 7 5 19 20 8 5 16 12 1 25 6 1 9 18 3 9 16 8 5 18 5 14 3 18 25 16 20 19 16 1 9 18 19 15 6 12 5 20 20 5 18 19 19 9 13 21 12 20 1 14 5 15 21 19 12 25 20 8 5 5 14 9 7 13 1 13 1 3 8 9 14 5 21 19 5 4 18 15 20 15 18 19... | 1 19 3 25 20 1 12 5 9 19 1 18 15 4 21 19 5 4 2 25 19 16 1 18 20 1 14 19 20 15 5 14 3 18 25 16 20 13 5 19 19 1 7 5 19 20 8 5 16 12 1 25 6 1 9 18 3 9 16 8 5 18 5 14 3 18 25 16 20 19 16 1 9 18 19 15 6 12 5 20 20 5 18 19 19 9 13 21 12 20 1 14 5 15 21 19 12 25 20 8 5 5 14 9 7 13 1 13 1 3 8 9 14 5 21 19 5 4 18 15 20 15 18 19... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
jefferson-disk-v2-0125 | VNKZXWHFZVDUIXXKSU | VNKZXWHFZVDUIXXKSU | CONTACT HAS BEEN MADE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0007728 | PBVWIWT DWAND TRZE RIWTE HKKMZLQJDFJZPK BEMEGWIKKAHH | PBVWIWT DWAND TRZE RIWTE HKKMZLQJDFJZPK BEMEGWIKKAHH | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | trithemius | trithemius | null | {} | medium | en | 47 | 47 | synthetic_educational | null | null | [] | |
cda-0016545 | AAAA AABA BAAA AAAA BBAA BAAB ABAA BBBA AAAA BAAA ABBA AAAB BAAA AABB AAAA ABBA BABA ABAA BAAA ABAA ABBA AABA AAAA BBAA BABB AAAA ABAB AAAB AAAB AABA AABB BAAA BABA AAAA BAAA AAAA BBAA ABAA AAAA BBAA AAAB BBAA BAAA BBBA ABAA AAAA BABB ABAB ABBA AAAB AABA AABA BBAA AAAA AABA AABB BABA AAAB BAAA ABAA | AAAA AABA BAAA AAAA BBAA BAAB ABAA BBBA AAAA BAAA ABBA AAAB BAAA AABB AAAA ABBA BABA ABAA BAAA ABAA ABBA AABA AAAA BBAA BABB AAAA ABAB AAAB AAAB AABA AABB BAAA BABA AAAA BAAA AAAA BBAA ABAA AAAA BBAA AAAB BBAA BAAA BBBA ABAA AAAA BABB ABAB ABBA AAAB AABA AABA BBAA AAAA AABA AABB BABA AAAB BAAA ABAA | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | bacon_cipher | bacon_cipher | null | {} | hard | en | 240 | 240 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
caesar-vh-0087 | YJ IJO XJIAJMH OJ OCZ KVOOZMI JA OCDN RJMGY WPO WZ OMVINAJMHZY WT OCZ MZIZRDIB JA TJPM HDIY | YJ IJO XJIAJMH OJ OCZ KVOOZMI JA OCDN RJMGY WPO WZ OMVINAJMHZY WT OCZ MZIZRDIB JA TJPM HDIY | DO NOT CONFORM TO THE PATTERN OF THIS WORLD BUT BE TRANSFORMED BY THE RENEWING OF YOUR MIND | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | en | 74 | 91 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0021 | B1 L1 R8 C5 H7 P9 O0 A9 A1 V4 B3 X2 U6 L9 N3 I8 K0 T4 J9 D2 B3 L9 A6 A4 Q1 O6 | B1 L1 R8 C5 H7 P9 O0 A9 A1 V4 B3 X2 U6 L9 N3 I8 K0 T4 J9 D2 B3 L9 A6 A4 Q1 O6 | THE PRINTING PRESS CHANGES ALL | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 52 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0012346 | GCBF NEXD KACK UQCP DFQU OOCP LHPZ SUKV GGUV OBTB OQRA EANJ HYTR MCYR COVO MJFE UNBR NTLH EWJO IBBC OUOB KIBA RFNY PYGU VZIR NBLB UQST BRLK PKLE LLBB PLEI MEBU PXRN YTKW CL | GCBF NEXD KACK UQCP DFQU OOCP LHPZ SUKV GGUV OBTB OQRA EANJ HYTR MCYR COVO MJFE UNBR NTLH EWJO IBBC OUOB KIBA RFNY PYGU VZIR NBLB UQST BRLK PKLE LLBB PLEI MEBU PXRN YTKW CL | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | vernam | vernam | null | {} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0013059 | 22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43 23 24 43 44 34 42 24 13 11 31 13 24 35 23 15 42 43 11 42 15 44 15 11 13 23 15 42 43 33 34 44 35 42 34 44 15 13 44 24 34 33 35 15 42 23 11 35 43 | 22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43 23 24 43 44 34 42 24 13 11 31 13 24 35 23 15 42 43 11 42 15 44 15 11 13 23 15 42 43 33 34 44 35 42 34 44 15 13 44 24 34 33 35 15 42 23 11 35 43 | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION PERHAPS | polybius | polybius | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
joseon-yeokhak-v2-0075 | BPMZMOQUMVBAPITTILDIVKMIBNQZABTQOPBACXXWZBMLJGIZBQTTMZGWVBPMMIABMZVNTIVSBWLIG | BPMZMOQUMVBAPITTILDIVKMIBNQZABTQOPBACXXWZBMLJGIZBQTTMZGWVBPMMIABMZVNTIVSBWLIG | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0088 | TWSRVKXQJZZTACRHPYIXUPFGQVFRFOBESGNDVHKKXIRERITZZJCCNVPRTXSTQEFZEDAYXXGNNAMJCDBZUXL | TWSRVKXQJZZTACRHPYIXUPFGQVFRFOBESGNDVHKKXIRERITZZJCCNVPRTXSTQEFZEDAYXXGNNAMJCDBZUXL | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
diana-051 | TVMRPZFUJSLTMRWMINKSQDMWODPSZNVQHGWTECUMIAYUMMKSAAQKYZNYXSLH | TVMRPZFUJSLTMRWMINKSQDMWODPSZNVQHGWTECUMIAYUMMKSAAQKYZNYXSLH | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "DIANA"
} | intermediate | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0004943 | CRNLR ECTYW EHPAA ITRNN ODDKG SCIRP ANAAR GPTEX HIFXY EUX | CRNLR ECTYW EHPAA ITRNN ODDKG SCIRP ANAAR GPTEX HIFXY EUX | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | scytale | scytale | null | {
"cols": 12
} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
beaufort-v2-0761 | YNHHDACNZMOEYJK | YNHHDACNZMOEYJK | CAVALRY ADVANCES | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ANCHOR"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0419 | FAQGGFQQBGEQIPBPMYTGJEQJAIYQNJSJXYUFQTMFYAGJQQFAT | FAQGGFQQBGEQIPBPMYTGJEQJAIYQNJSJXYUFQTMFYAGJQQFAT | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0387 | HRRACRLEIHSBETOA | HRRACRLEIHSBETOA | THE HARBOR IS CLEAR | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0340 | 46 64 63 13 57 11 33 20 87 44 38 29 44 58 77 69 86 28 88 75 59 63 42 75 20 11 29 38 28 42 39 18 11 22 87 57 63 21 59 71 28 43 11 65 58 28 27 24 11 46 75 33 28 21 77 11 46 25 16 20 28 44 48 65 11 88 21 69 27 77 28 46 42 61 67 29 38 21 11 | 46 64 63 13 57 11 33 20 87 44 38 29 44 58 77 69 86 28 88 75 59 63 42 75 20 11 29 38 28 42 39 18 11 22 87 57 63 21 59 71 28 43 11 65 58 28 27 24 11 46 75 33 28 21 77 11 46 25 16 20 28 44 48 65 11 88 21 69 27 77 28 46 42 61 67 29 38 21 11 | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 158 | 236 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0203 | 90 53 79 88 80 30 89 91 90 77 54 81 63 40 91 90 44 18 37 76 91 90 12 63 76 66 91 90 75 72 15 91 90 55 47 45 84 85 81 53 91 90 61 25 20 91 90 15 58 55 63 76 91 90 41 18 16 40 91 90 85 66 30 89 91 90 47 67 18 54 45 91 90 20 63 53 79 88 80 77 16 91 90 25 55 91 90 69 20 76 47 17 91 90 15 44 55 85 72 82 58 91 90 30 84 81 63... | 90 53 79 88 80 30 89 91 90 77 54 81 63 40 91 90 44 18 37 76 91 90 12 63 76 66 91 90 75 72 15 91 90 55 47 45 84 85 81 53 91 90 61 25 20 91 90 15 58 55 63 76 91 90 41 18 16 40 91 90 85 66 30 89 91 90 47 67 18 54 45 91 90 20 63 53 79 88 80 77 16 91 90 25 55 91 90 69 20 76 47 17 91 90 15 44 55 85 72 82 58 91 90 30 84 81 63... | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 218 | 326 | cipher_museum | 2.0 | public | null | null |
cda-0003132 | GURG EVGU RZVH FPVC UREN QINA PRFG URNY CUNO RGOL BARC BFVG VBAR NPUY RGGR ENFG EBAT PYNV ZARR QFFG EBAT RIVQ RAPR PELC GBTE NCUL ERJN EQFC NGVR APRN AQPN ERSH YGUV AXVA TGUR NEPU VGRP GHER FUBH YQZN XRZV FHFR UNEQ REFY BJYL | GURG EVGU RZVH FPVC UREN QINA PRFG URNY CUNO RGOL BARC BFVG VBAR NPUY RGGR ENFG EBAT PYNV ZARR QFFG EBAT RIVQ RAPR PELC GBTE NCUL ERJN EQFC NGVR APRN AQPN ERSH YGUV AXVA TGUR NEPU VGRP GHER FUBH YQZN XRZV FHFR UNEQ REFY BJYL | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A STRONG CLAIM NEEDS STRONG EVIDENCE CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE ARCHITECTURE SHOULD MAKE MISUSE HARDER SLOWLY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0005014 | QGXEK XQFKZ JHRDD RQFJW IOIJT OXHRQ XJKXQ FKZJH IFRCH I | QGXEK XQFKZ JHRDD RQFJW IOIJT OXHRQ XJKXQ FKZJH IFRCH I | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | monoalphabetic | monoalphabetic | null | {
"alphabet": "KZDMJCNFRYAXTUGQLWIHOSPVEB"
} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
two-square-v2-0137 | BYYFACYHSISERITCGBSMED | BYYFACYHSISERITCGBSMED | EXTRACTION POINT CHANGED | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
purple-v2-0364 | PCHTMGTCKJKZCCXXSIJOWHOCXKXXGPRVWVEEXCEZLWMCVUEGCWEVPDOQWJTDXCEZLQWWFYQLYHZZSAPTNJRFVEOOQUPWYSJPFNKNISNSBVFNTQVXBARWYYQXZPRELZYSBJTGCQSVLOPFWXKAWPHCTMJ | PCHTMGTCKJKZCCXXSIJOWHOCXKXXGPRVWVEEXCEZLWMCVUEGCWEVPDOQWJTDXCEZLQWWFYQLYHZZSAPTNJRFVEOOQUPWYSJPFNKNISNSBVFNTQVXBARWYYQXZPRELZYSBJTGCQSVLOPFWXKAWPHCTMJ | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0180 | NPCAPCRVZBRYATVWRUCUFCTDZVVOQKURCMYVDZQDELALFZBVVPKZAKALDUQYFOYVFCNMAFRYVZ | NPCAPCRVZBRYATVWRUCUFCTDZVVOQKURCMYVDZQDELALFZBVVPKZAKALDUQYFOYVFCNMAFRYVZ | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
autokey-la-032 | LIOGYLYYSXN | LIOGYLYYSXN | TEMPUS FUGIT | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | la | 11 | 11 | cipher_museum | 0.2 | public | null | null |
enigma-v2-0922 | UUOSFDYYUPTBJTYEDJTUFUBZ | UUOSFDYYUPTBJTYEDJTUFUBZ | NORTH STAR HOLDS FIRM COURSE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0021870 | r └ ⌐ X X Γ· r ⌐ └ r Γ· ┐· r· L ┌· X K L ⌐ r r· ⌒ r· ⌒· ┌ ┘· Γ L ┌· ─ X L r X· ┌· Γ· K ⌒· ┌ ⌐ K K L ┌· X ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ | r └ ⌐ X X Γ· r ⌐ └ r Γ· ┐· r· L ┌· X K L ⌐ r r· ⌒ r· ⌒· ┌ ┘· Γ L ┌· ─ X L r X· ┌· Γ· K ⌒· ┌ ⌐ K K L ┌· X ⌐ X K ┌· ┘· ─ ¬· r └ ⌐ Γ· ┌ ─ L L Γ X X K ┌· ┘· ─ ¬· L K· Γ· Γ L ─ r L L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS A STRONG CLAIM NEEDS STRONG EVIDENCE EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | pigpen | pigpen | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
venona-pad-reuse-v3-0172 | YPFW6X4IGEPZV7YATXWXMA3JIRA4ZHFASYQHASM4A7P4MMEXJZMFM4BLPAMHV7WG2SVRA4I3GMD | YPFW6X4IGEPZV7YATXWXMA3JIRA4ZHFASYQHASM4A7P4MMEXJZMFM4BLPAMHV7WG2SVRA4I3GMD | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0069 | 69 57 82 35 66 51 32 62 44 22 21 18 88 34 14 41 16 73 75 36 22 71 72 88 44 22 19 65 25 18 88 14 43 82 32 24 52 41 30 57 73 39 21 16 53 75 22 25 88 13 14 66 65 51 32 19 22 82 18 57 44 73 75 56 16 30 44 65 87 79 88 32 53 65 52 72 71 14 66 45 22 | 69 57 82 35 66 51 32 62 44 22 21 18 88 34 14 41 16 73 75 36 22 71 72 88 44 22 19 65 25 18 88 14 43 82 32 24 52 41 30 57 73 39 21 16 53 75 22 25 88 13 14 66 65 51 32 19 22 82 18 57 44 73 75 56 16 30 44 65 87 79 88 32 53 65 52 72 71 14 66 45 22 | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 162 | 242 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-250 | LCSTAMPULMGAAYESPAARSPSE | LCSTAMPULMGAAYESPAARSPSE | THE PACKAGE IS DELIVERED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CRYPTIC"
} | advanced | en | 24 | 24 | cipher_museum | 0.2 | public | null | null |
enigma-108 | XBLBVTBINIRCALEJKQGXHSVJPGXBKASKHOJLFGOUGXUXVYDLJLZBWXGJ | XBLBVTBINIRCALEJKQGXHSVJPGXBKASKHOJLFGOUGXUXVYDLJLZBWXGJ | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "XYZ"
} | expert | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
typex-v2-0468 | ZZSBCGXDOXITWJBHTRXRDTSBVJHIYUICEVDVMYBFXMDIHUHIZAPUUKFCVJRYLZSWPZHTDMYPHAGG | ZZSBCGXDOXITWJBHTRXRDTSBVJHIYUICEVDVMYBFXMDIHUHIZAPUUKFCVJRYLZSWPZHTDMYPHAGG | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0020317 | 48 70 91 3 45 63 92 4 33 2 43 32 58 48 50 14 81 87 23 3 25 2 49 15 60 92 59 99 2 64 66 43 60 34 59 67 14 60 66 72 99 2 30 2 70 68 32 3 59 15 24 67 3 76 80 33 23 15 49 24 40 1 86 59 91 17 87 58 66 67 43 1 70 62 91 94 48 67 45 4 67 33 4 2 35 88 93 81 23 25 88 33 46 72 14 58 43 36 32 82 3 22 35 59 63 17 23 58 14 43 23 11 ... | 48 70 91 3 45 63 92 4 33 2 43 32 58 48 50 14 81 87 23 3 25 2 49 15 60 92 59 99 2 64 66 43 60 34 59 67 14 60 66 72 99 2 30 2 70 68 32 3 59 15 24 67 3 76 80 33 23 15 49 24 40 1 86 59 91 17 87 58 66 67 43 1 70 62 91 94 48 67 45 4 67 33 4 2 35 88 93 81 23 25 88 33 46 72 14 58 43 36 32 82 3 22 35 59 63 17 23 58 14 43 23 11 ... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | homophonic | homophonic | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
purple-v2-0027 | TLTGDNIWDQDCF | TLTGDNIWDQDCF | HONOR ABOVE ALL | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0003296 | UHZN AERN QNOY RBHG CHGF UBHY QFUB JNYY ERNF BAVA TFGR CF | UHZN AERN QNOY RBHG CHGF UBHY QFUB JNYY ERNF BAVA TFGR CF | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
purple-v3-0245 | NQELICYQNIQETQCXBKZ | NQELICYQNIQETQCXBKZ | THE TELESCOPE REVEALS | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0047 | XTTSCXZNBZUGZPXYMNTGCRUKYZULGNTSZELDZEVBUGEEEIAOYTASFMFHWGFSXSNCEHZNJALLNOIUHOTOXWSWWVYS | XTTSCXZNBZUGZPXYMNTGCRUKYZULGNTSZELDZEVBUGEEEIAOYTASFMFHWGFSXSNCEHZNJALLNOIUHOTOXWSWWVYS | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
m94-v2-0204 | GVUSJUNYWFWDWZPVHIMPPNVAEXJITCYMODHZIUHQHSYVPRNVNAEDILPNJHPEICRSJFIROBFHVXSHKI | GVUSJUNYWFWDWZPVHIMPPNVAEXJITCYMODHZIUHQHSYVPRNVNAEDILPNJHPEICRSJFIROBFHVXSHKI | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0008723 | HZCVLUQO CTYUIH HRKVTS GZ QZHQZS VXSZL HCLVQUXO Y HQLKXE CTYUI XZZSH HQLKXE ZBUSZXCZ HVGHQUQVQUKX CUPRZLH IYP ZYCR TZQQZL QK Y SUMMZLZXQ TZQQZL RUHQKLUCYT CUPRZLH YLZ QZYCRZLH XKQ PLKQZCQUKX | HZCVLUQO CTYUIH HRKVTS GZ QZHQZS VXSZL HCLVQUXO Y HQLKXE CTYUI XZZSH HQLKXE ZBUSZXCZ HVGHQUQVQUKX CUPRZLH IYP ZYCR TZQQZL QK Y SUMMZLZXQ TZQQZL RUHQKLUCYT CUPRZLH YLZ QZYCRZLH XKQ PLKQZCQUKX | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A STRONG CLAIM NEEDS STRONG EVIDENCE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | monoalphabetic | monoalphabetic | null | {
"alphabet": "YGCSZMERUJFTIXKPALHQVBWNOD"
} | hard | en | 163 | 163 | synthetic_educational | null | null | [] | |
alberti-disk-v3-0292 | PLOGAZOLBRFPLGSJIOSXZTAXFJXQYDSRIXMVRBQEACLGDCOUGEWVGNTNVSEAFIUBMCSMGBEQRM | PLOGAZOLBRFPLGSJIOSXZTAXFJXQYDSRIXMVRBQEACLGDCOUGEWVGNTNVSEAFIUBMCSMGBEQRM | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0015273 | L ┌· ┌· ┘· ┌· r ┘· ┌· ┌· L r K Γ· ┘· ─ ⌐ ─ Γ Γ L K L r K Γ· ┘· ─ ⌐ ┌· L ⌐· X· ─ Γ ⌐ ┌ L ─ K ⌐ └ K ┘· X L r X· ┌· L X ⌒· X K L ┌ X | L ┌· ┌· ┘· ┌· r ┘· ┌· ┌· L r K Γ· ┘· ─ ⌐ ─ Γ Γ L K L r K Γ· ┘· ─ ⌐ ┌· L ⌐· X· ─ Γ ⌐ ┌ L ─ K ⌐ └ K ┘· X L r X· ┌· L X ⌒· X K L ┌ X | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | pigpen | pigpen | null | {} | easy | en | 25 | 25 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
chaocipher-v2-0464 | NYTXMYHFPFBTNNDCNNUAATQLXPLWZLDNPJQOOQIIXKGCSWQREBXTJMGEXTEKZWQDLRDTDUXBFQFBZBM | NYTXMYHFPFBTNNDCNNUAATQLXPLWZLDNPJQOOQIIXKGCSWQREBXTJMGEXTEKZWQDLRDTDUXBFQFBZBM | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0107 | 99999 90005 90014 90020 90017 90018 90002 90014 90017 90004 99998 00002 99999 90018 90004 90021 90004 90013 99998 99999 90024 90004 90000 90017 90018 99998 99999 90000 90006 90014 99998 00083 99999 90005 90000 90019 90007 90004 90017 90018 99998 99999 90001 90017 90014 90020 90006 90007 90019 99998 99999 90005 90014 90... | 99999 90005 90014 90020 90017 90018 90002 90014 90017 90004 99998 00002 99999 90018 90004 90021 90004 90013 99998 99999 90024 90004 90000 90017 90018 99998 99999 90000 90006 90014 99998 00083 99999 90005 90000 90019 90007 90004 90017 90018 99998 99999 90001 90017 90014 90020 90006 90007 90019 99998 99999 90005 90014 90... | 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 | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 760 | 911 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0339 | TUHREETCSOTMNPIAOSPS | TUHREETCSOTMNPIAOSPS | THE COMPASS POINTS TRUE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0005930 | RLGRARISNXPNOAEXPSOCFONQAPTTSIPCIIESRODIIMVPEULXEIEECWRCDNRETITXSDENFOAPGHAPEEEXIUHONLRSDELHONEX | RLGRARISNXPNOAEXPSOCFONQAPTTSIPCIIESRODIIMVPEULXEIEECWRCDNRETITXSDENFOAPGHAPEEEXIUHONLRSDELHONEX | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "DRAGON"
} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
adfgvx-v2-0246 | AVADFGDGDDGDAVDXFXAAVXAAAXDFAAAXAVFVAAAFADADFGAADFAFFGFXAADGAXAADAGVFAAXAFFAVDDGDGADFGAVGXFGDAFVDVAAAADXAFGDVAVFDADDVAGDXFXFGAXGAAAGXAXAXADAGAAGXDGADAVFDDFGAVDVGFFXFDFXFGDDAGFDADDDFGAGDFDGFAFXGVAGDFADDGAXGDFADGFAAGFGDXAXAXADADAGDADVFGFFGGDDFAAGFAFFGVDVDVFADXGGDGAXFFGFFFAVFFDVAGAAAVADADGGAGDXGVAGDGGGGGFVDXDFFGXGDAAAXFVA... | AVADFGDGDDGDAVDXFXAAVXAAAXDFAAAXAVFVAAAFADADFGAADFAFFGFXAADGAXAADAGVFAAXAFFAVDDGDGADFGAVGXFGDAFVDVAAAADXAFGDVAVFDADDVAGDXFXFGAXGAAAGXAXAXADAGAAGXDGADAVFDDFGAVDVGFFXFDFXFGDDAGFDADDDFGAGDFDGFAFXGVAGDFADDGAXGDFADGFAAGFGDXAXAXADADAGDADVFGFFGGDDFAAGFAFFGVDVDVFADXGGDGAXFFGFFFAVFFDVAGAAAVADADGGAGDXGVAGDGGGGGFVDXDFFGXGDAAAXFVA... | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 362 | 362 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0145 | SMBRNSKOCDHEHWKDF | SMBRNSKOCDHEHWKDF | COURAGE IN DARKNESS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0016984 | DIGRA PHANZ TRIGX APHFX EQUEX CIESZ XPOSZ SIMPL ECIPH ERSDX | DIGRA PHANZ TRIGX APHFX EQUEX CIESZ XPOSZ SIMPL ECIPH ERSDX | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | commercial_code | commercial_code | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
trifid-v2-0553 | TPLU+TAVXDVEAFBEIRYNOEDBOUCN+PUYDTBXT+HUJFIZTDIYOOECMOWNGFLISCWQFCQUXT | TPLU+TAVXDVEAFBEIRYNOEDBOUCN+PUYDTBXT+HUJFIZTDIYOOECMOWNGFLISCWQFCQUXT | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0004070 | GURSE VRQZN AGRFG HFRFG URVAQ RKBSP BVAPV QRAPR GBRFG VZNGR XRLYR ATGU | GURSE VRQZN AGRFG HFRFG URVAQ RKBSP BVAPV QRAPR GBRFG VZNGR XRLYR ATGU | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 59 | 59 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
diana-v3-0378 | FEOAATNTBXNFTLZIKCKPVSUIXNBULPUNDZSECXQANQLGHLYLLFIJWUAAZAQAVLVHTBLKFTUOTR | FEOAATNTBXNFTLZIKCKPVSUIXNBULPUNDZSECXQANQLGHLYLLFIJWUAAZAQAVLVHTBLKFTUOTR | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0303 | EQT WGLN AZMM UGKFF EQT XTMWAWGT GZBTG EKYZRQE WE TMTBTY KUMKUO EQT LTY AZMM UWGGN KYMN EQTZG ATWJKYF WYX EQGTT XWNF KS GWEZKYF LWGUQ GKCETF WYX KVPTUEZBTF AZMM VT XZFEGZVCETX EK UKLLWYXTGF WE EQT UGKFFZYR | EQT WGLN AZMM UGKFF EQT XTMWAWGT GZBTG EKYZRQE WE TMTBTY KUMKUO EQT LTY AZMM UWGGN KYMN EQTZG ATWJKYF WYX EQGTT XWNF KS GWEZKYF LWGUQ GKCETF WYX KVPTUEZBTF AZMM VT XZFEGZVCETX EK UKLLWYXTGF WE EQT UGKFFZYR | THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 171 | 205 | cipher_museum | 2.0 | public | null | null |
kryha-086 | XUSXLJEZEAVHSQY | XUSXLJEZEAVHSQY | FORWARD MARCH NOW | kryha | kryha | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0156 | YKUFQOIWCTFUVJGICVG | YKUFQOIWCTFUVJGICVG | WISDOM GUARDS THE GATE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
typex-v2-0287 | MBRAGKWADDKM | MBRAGKWADDKM | IN GOD WE TRUST | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
slidex-093 | KRTXPGOYLFRZOZMTIYJJNWRXMHNWRXNJAPQD | KRTXPGOYLFRZOZMTIYJJNWRXMHNWRXNJAPQD | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | slidex | slidex | transposition | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0411 | KHQEEPEDMWEWRZADESSMHUIQNPISFWAIZLTQWBGASPWZCLAZVZENRLFWHUEPWTDVHAOICIYDOBHUXDELOEBGFMKNZQGGSFSSNTRFHFNRYEESALOCTNOLNZMCXRKWWPVZSUEOGFTVXRJIOTPCFIVVPKSZAZRTBVPWZXAEZRRJIL | KHQEEPEDMWEWRZADESSMHUIQNPISFWAIZLTQWBGASPWZCLAZVZENRLFWHUEPWTDVHAOICIYDOBHUXDELOEBGFMKNZQGGSFSSNTRFHFNRYEESALOCTNOLNZMCXRKWWPVZSUEOGFTVXRJIOTPCFIVVPKSZAZRTBVPWZXAEZRRJIL | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
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