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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
geheimschreiber-v3-0212 | VZTFOHKRBUKCSFJAZWUK | VZTFOHKRBUKCSFJAZWUK | THE LEGIONS STAND READY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-193 | DCWVLUDLEVICSICNI | DCWVLUDLEVICSICNI | ENEMY FORCES NEAR | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
cda-0015483 | 20 8 5 12 9 2 18 1 18 25 16 18 5 19 5 18 22 5 19 11 14 15 23 12 5 4 7 5 6 15 18 20 8 5 3 15 13 13 21 14 9 20 25 20 8 5 1 21 20 15 11 5 25 3 9 16 8 5 18 5 24 20 5 14 4 19 20 8 5 11 5 25 23 9 20 8 20 8 5 16 12 1 9 14 20 5 24 20 9 20 19 5 12 6 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... | 20 8 5 12 9 2 18 1 18 25 16 18 5 19 5 18 22 5 19 11 14 15 23 12 5 4 7 5 6 15 18 20 8 5 3 15 13 13 21 14 9 20 25 20 8 5 1 21 20 15 11 5 25 3 9 16 8 5 18 5 24 20 5 14 4 19 20 8 5 11 5 25 23 9 20 8 20 8 5 16 12 1 9 14 20 5 24 20 9 20 19 5 12 6 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... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 199 | 199 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
bazeries-v3-0712 | YBNTBYNHSFTASGFHBHHTRNTPEQJVBFXTDXLVIPJSLOXAJHHBTHBTTPTMHHTRMXPVWBHSAHBORTOXLTBAPOH | YBNTBYNHSFTASGFHBHHTRNTPEQJVBFXTDXLVIPJSLOXAJHHBTHBTTPTMHHTRMXPVWBHSAHBORTOXLTBAPOH | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0014 | ZUZUZ PAZUZ SAZUZ DEZUZ GAZUZ WAZUZ XUZUZ BABAB ZUZUZ FAZUZ WAZUZ BAZUZ DEZUZ CAZUZ WAZUZ LAZUZ FAZUZ JAZUZ GAZUZ XUZUZ | ZUZUZ PAZUZ SAZUZ DEZUZ GAZUZ WAZUZ XUZUZ BABAB ZUZUZ FAZUZ WAZUZ BAZUZ DEZUZ CAZUZ WAZUZ LAZUZ FAZUZ JAZUZ GAZUZ XUZUZ | LOWER THE DRAWBRIDGE | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 100 | 119 | cipher_museum | 2.0 | public | null | null |
cda-0009345 | OFSWM UELLU AXJEC UBTHG YOACM QKAYL ESFYI VLCOU KBXPE EOXVP KCNXV KFCWW WMALS QWSGA VEISM FVUIL VDMSX ZIIYE AMXVW PYBJT WTZHF RETVH PCVES XNTYM SETGN BBWWE XHK | OFSWM UELLU AXJEC UBTHG YOACM QKAYL ESFYI VLCOU KBXPE EOXVP KCNXV KFCWW WMALS QWSGA VEISM FVUIL VDMSX ZIIYE AMXVW PYBJT WTZHF RETVH PCVES XNTYM SETGN BBWWE XHK | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING TOMORROW | autokey | autokey | null | {
"primer": "MUSEUM"
} | hard | en | 133 | 133 | synthetic_educational | null | null | [] | |
lorenz-167 | TOBEORNOTTOBETHATISTHEQUESTIONWHETHERTISPOBLERINTHEMIND | TOBEORNOTTOBETHATISTHEQUESTIONWHETHERTISPOBLERINTHEMIND | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | lorenz | lorenz | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
caesar-v2-0402 | ZNK CGRRY NGBK KGXY | ZNK CGRRY NGBK KGXY | THE WALLS HAVE EARS | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0031 | FNKJDCWPIUSRBUGJJIHOM | FNKJDCWPIUSRBUGJJIHOM | SONS OF LIBERTY ASSEMBLE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0050 | GDGSHIOOONNITOSANGRWOOIISERILDHRDGGTSERTLOTONTHRUWOASOTMIHTACSWHAGILGPHTYL | GDGSHIOOONNITOSANGRWOOIISERILDHRDGGTSERTLOTONTHRUWOASOTMIHTACSWHAGILGPHTYL | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014212 | FAXYK DPPOS QQLES KTZJT SUAFB OTIHI JFYXD DCSFZ VCAGH TLS | FAXYK DPPOS QQLES KTZJT SUAFB OTIHI JFYXD DCSFZ VCAGH TLS | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | one_time_pad | one_time_pad | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
geheimschreiber-v3-0056 | UYRETPSHBATZDEQQYIYJEQQDZGMUDINYLYQKNVHLKCEHMOAIQDUBMHLJZQKSHDPQRXWVMWVUOQJXIG | UYRETPSHBATZDEQQYIYJEQQDZGMUDINYLYQKNVHLKCEHMOAIQDUBMHLJZQKSHDPQRXWVMWVUOQJXIG | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0100 | 76 57 65 55 50 63 68 45 36 29 65 60 85 49 52 60 | 76 57 65 55 50 63 68 45 36 29 65 60 85 49 52 60 | SOUND THE TRUMPETS | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0402 | TGRPEDOAWAYALLHANDSBRACE | TGRPEDOAWAYALLHANDSBRACE | TORPEDO AWAY ALL HANDS BRACE | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0092 | YPWUQNYZQXXTRLCJSYGHMZPLYBCFRWMYOZBXOIFEORJKZXUBAKRERPOEIMOULNXPYLZXDVKMIIEDFS | YPWUQNYZQXXTRLCJSYGHMZPLYBCFRWMYOZBXOIFEORJKZXUBAKRERPOEIMOULNXPYLZXDVKMIIEDFS | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-106 | 90 28 69 72 87 91 90 76 47 32 53 19 91 90 11 46 88 91 90 58 30 29 19 66 91 90 75 30 27 87 76 91 90 11 42 69 91 90 32 33 53 91 90 13 27 31 70 19 87 58 91 90 77 53 69 72 86 45 24 91 90 28 32 87 31 70 91 90 24 45 89 76 91 90 46 11 31 68 69 66 91 | 90 28 69 72 87 91 90 76 47 32 53 19 91 90 11 46 88 91 90 58 30 29 19 66 91 90 75 30 27 87 76 91 90 11 42 69 91 90 32 33 53 91 90 13 27 31 70 19 87 58 91 90 77 53 69 72 86 45 24 91 90 28 32 87 31 70 91 90 24 45 89 76 91 90 46 11 31 68 69 66 91 | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 162 | 242 | cipher_museum | 0.2 | public | null | null |
great-cipher-v3-0220 | 126 164 142 166 164 141 175 | 126 164 142 166 164 141 175 | DEUS VULT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 21 | 27 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0242 | 37 82 83 26 17 67 32 41 75 16 64 22 18 20 13 82 83 56 12 72 75 18 28 77 26 44 23 66 81 63 25 37 82 20 69 28 15 83 66 18 16 20 37 17 77 41 83 32 23 38 44 72 25 71 67 20 83 44 33 63 22 66 59 56 20 75 82 83 26 20 28 12 83 37 18 69 20 60 83 22 41 32 20 66 82 83 75 37 72 77 26 81 63 66 20 67 22 18 83 56 20 75 37 17 67 83 66... | 37 82 83 26 17 67 32 41 75 16 64 22 18 20 13 82 83 56 12 72 75 18 28 77 26 44 23 66 81 63 25 37 82 20 69 28 15 83 66 18 16 20 37 17 77 41 83 32 23 38 44 72 25 71 67 20 83 44 33 63 22 66 59 56 20 75 82 83 26 20 28 12 83 37 18 69 20 60 83 22 41 32 20 66 82 83 75 37 72 77 26 81 63 66 20 67 22 18 83 56 20 75 37 17 67 83 66... | 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 | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 328 | 491 | cipher_museum | 2.0 | public | null | null |
cda-0017521 | ASTRZ NGCLA IMNEE DSSTR ONGEZ IDENC EAEXX | ASTRZ NGCLA IMNEE DSSTR ONGEZ IDENC EAEXX | A STRONG CLAIM NEEDS STRONG EVIDENCE | commercial_code | commercial_code | null | {} | medium | en | 35 | 35 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0020479 | FREQX ENCYA NALYS ISCAN REVEA LWEAZ CIPHE RSHIL LCIPH ERUSX SLINE ARALX EBRAT OENCR YPTBX OCKSX FLETZ ERSTZ ANSPZ SITIZ NCIPH ERSRE ARRAN GELET TERSW ITHOU TSUBS TITUT IONSU BSTIT UTIOX CIPHX RSMAX EACHL ETTER TOADZ FFERE NTLEX TERCZ | FREQX ENCYA NALYS ISCAN REVEA LWEAZ CIPHE RSHIL LCIPH ERUSX SLINE ARALX EBRAT OENCR YPTBX OCKSX FLETZ ERSTZ ANSPZ SITIZ NCIPH ERSRE ARRAN GELET TERSW ITHOU TSUBS TITUT IONSU BSTIT UTIOX CIPHX RSMAX EACHL ETTER TOADZ FFERE NTLEX TERCZ | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | commercial_code | commercial_code | null | {} | hard | en | 195 | 195 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
vigenere-fr-042 | DIUYSFEIUEEBKWGEXXLHGDINJIPKPBTVGJIMWKCLBXFHTFMMK | DIUYSFEIUEEBKWGEXXLHGDINJIPKPBTVGJIMWKCLBXFHTFMMK | LES HOMMES NAISSENT ET DEMEURENT LIBRES ET EGAUX EN DROITS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | fr | 49 | 49 | cipher_museum | 0.2 | public | null | null |
playfair-402 | YKDTORGEKAKQEOQFZATAIP | YKDTORGEKAKQEOQFZATAIP | THE PACKAGE IS DELIVERED | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | en | 22 | 22 | cipher_museum | 0.2 | public | null | null |
autokey-263 | XUMQUNZPWNMNJ | XUMQUNZPWNMNJ | THE KING IS DEAD | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
vigenere-fr-043 | WIEVBXQQGALMEGRYXQHQPQQIEPRFZVMVQGREISOHIIZREZMFG | WIEVBXQQGALMEGRYXQHQPQQIEPRFZVMVQGREISOHIIZREZMFG | LES HOMMES NAISSENT ET DEMEURENT LIBRES ET EGAUX EN DROITS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "LEMON"
} | intermediate | fr | 49 | 49 | cipher_museum | 0.2 | public | null | null |
cda-0021904 | WLML GXLM UFHV LYUF HXZG RLMD RGSV MXIB KGRL MUIV JFVM XBZM ZOBH RHXZ MIVE VZOD VZPX RKSV IHYI FGVU LIXV DLIP HLMO BDSV MGSV PVBH KZXV RHHN ZOOG SVVM RTNZ NZXS RMVF HVWI LGLI HGLX IVZG VZKL OBZO KSZY VGRX XRKS VI | WLML GXLM UFHV LYUF HXZG RLMD RGSV MXIB KGRL MUIV JFVM XBZM ZOBH RHXZ MIVE VZOD VZPX RKSV IHYI FGVU LIXV DLIP HLMO BDSV MGSV PVBH KZXV RHHN ZOOG SVVM RTNZ NZXS RMVF HVWI LGLI HGLX IVZG VZKL OBZO KSZY VGRX XRKS VI | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | atbash | atbash | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
adfgvx-v3-0020 | FAGVDDFAFXFAAFADFDFAGDDD | FAGVDDFAFXFAAFADFDFAGDDD | GOLD FROM LEAD | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0021424 | 14.33.11 7.23.6 14.44.14 20.9.3 9.12.11 6.29.3 17.14.5 18.13.9 15.44.8 7.2.8 9.12.4 11.26.7 11.17.12 13.20.2 18.23.2 11.6.7 2.21.5 20.25.4 11.10.11 7.19.1 6.9.15 12.25.12 18.49.6 16.39.6 8.49.9 19.38.15 15.2.3 14.31.10 2.43.3 7.36.15 16.31.15 18.22.2 14.24.12 12.26.5 9.35.9 20.25.13 16.30.15 3.3.1 10.41.10 4.10.4 18.39... | 14.33.11 7.23.6 14.44.14 20.9.3 9.12.11 6.29.3 17.14.5 18.13.9 15.44.8 7.2.8 9.12.4 11.26.7 11.17.12 13.20.2 18.23.2 11.6.7 2.21.5 20.25.4 11.10.11 7.19.1 6.9.15 12.25.12 18.49.6 16.39.6 8.49.9 19.38.15 15.2.3 14.31.10 2.43.3 7.36.15 16.31.15 18.22.2 14.24.12 12.26.5 9.35.9 20.25.13 16.30.15 3.3.1 10.41.10 4.10.4 18.39... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | book_cipher | book_cipher | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
kl7-v3-0166 | CNRVUGPPKBOMENFOMIHJPRLZRDMCNOCFOHMSWOAQRVJKTBHMDHEWWPKYDUAGZQRAMJNPDVXCN | CNRVUGPPKBOMENFOMIHJPRLZRDMCNOCFOHMSWOAQRVJKTBHMDHEWWPKYDUAGZQRAMJNPDVXCN | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
sigaba-179 | THPCDUGHFEAARMGBBYNQOBZVQSFJYJRGZJMQLVRCTOHBETUSVUBMIGRWMNRMABWVVKGAEIACVORLQDQLJLIYBXVZCOKIFGPNNGBOWGEBEUINNMUQJXSTDLXTTZLADHMJGCCWCMSGICFSSAQGMMAK | THPCDUGHFEAARMGBBYNQOBZVQSFJYJRGZJMQLVRCTOHBETUSVUBMIGRWMNRMABWVVKGAEIACVORLQDQLJLIYBXVZCOKIFGPNNGBOWGEBEUINNMUQJXSTDLXTTZLADHMJGCCWCMSGICFSSAQGMMAK | 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 | sigaba | sigaba | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
stager-route-v2-0104 | HEMINIERACTTEASCNSREASTTEANSEIOSIDCREHCDQOALECRMWNXIMEUPLTNUAFTIORQEFXXTDUARGHIRTREETTIIAX | HEMINIERACTTEASCNSREASTTEANSEIOSIDCREHCDQOALECRMWNXIMEUPLTNUAFTIORQEFXXTDUARGHIRTREETTIIAX | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
hill-v3-0316 | DMGFWGWWXZSNANJCKCXL | DMGFWGWWXZSNANJCKCXL | THE LEGIONS STAND READY | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0016553 | 801 999 838 842 810 814 834 999 808 800 839 999 808 834 802 855 856 825 816 874 999 845 801 859 859 812 851 839 854 999 804 860 857 999 825 858 999 807 801 839 999 801 835 856 844 999 805 813 999 868 853 844 839 820 999 | 801 999 838 842 810 814 834 999 808 800 839 999 808 834 802 855 856 825 816 874 999 845 801 859 859 812 851 839 854 999 804 860 857 999 825 858 999 807 801 839 999 801 835 856 844 999 805 813 999 868 853 844 839 820 999 | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | culper_ring | culper_ring | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
geheimschreiber-v3-0323 | KWISRYVTXDFQAQZKBLD | KWISRYVTXDFQAQZKBLD | AVE MARIA GRATIA PLENA | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
typex-v2-0499 | CDBCUEOQOJRBKSZWLQKJRXFFMQXUTEXEHJZXBLTNHBPDXILXOAEEEILLYGBLNBUNSZWLKZVLGQGVXAYCCKRAJKKVYJWTJEJJNAXWLLISHSXWJIXZAZLXZAHRDSVAPNSXBDCMHAEFXUEOYMKBYWTKMJ | CDBCUEOQOJRBKSZWLQKJRXFFMQXUTEXEHJZXBLTNHBPDXILXOAEEEILLYGBLNBUNSZWLKZVLGQGVXAYCCKRAJKKVYJWTJEJJNAXWLLISHSXWJIXZAZLXZAHRDSVAPNSXBDCMHAEFXUEOYMKBYWTKMJ | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0455 | ULDYFVWONNTBIKMTLVXLQHCMQPBYHQOKKATIFWNDBQFUITHMHCKEJLJYELMGRTHNZPIHWUWVYRQJV | ULDYFVWONNTBIKMTLVXLQHCMQPBYHQOKKATIFWNDBQFUITHMHCKEJLJYELMGRTHNZPIHWUWVYRQJV | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0019587 | BETKI NMAEM AETKI NDZEH WOLLA CHEET SAHBE LINDZ EHDIB EHYAZ ZIEDI BEHYA ZZIEN AASTS OSIWO LLACH EETSA HTKIN TSAHT HANZI EGAHA KHABE NODAI HMOAS IDZEH BECLA GIAIH NODAI HSHUS HDIBE HYAZZ IETKI NMOAS IKLIZ ZIEDZ EHTSA HASZI HMOAS IGAHT SAHAS ZIHCL AGIAI HTHAN ZIE | BETKI NMAEM AETKI NDZEH WOLLA CHEET SAHBE LINDZ EHDIB EHYAZ ZIEDI BEHYA ZZIEN AASTS OSIWO LLACH EETSA HTKIN TSAHT HANZI EGAHA KHABE NODAI HMOAS IDZEH BECLA GIAIH NODAI HSHUS HDIBE HYAZZ IETKI NMOAS IKLIZ ZIEDZ EHTSA HASZI HMOAS IGAHT SAHAS ZIHCL AGIAI HTHAN ZIE | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | navajo_code | navajo_code | null | {} | hard | en | 218 | 218 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
rail-fence-084 | TTNRSNOEUO | TTNRSNOEUO | TRUST NO ONE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0062 | UGELMUBKSMYSHEECLUBKUFALCMMEWAMLHEKTOAUGOTPMAHKZNINGUACOPASTURCUGVSTNBAXATLUSX | UGELMUBKSMYSHEECLUBKUFALCMMEWAMLHEKTOAUGOTPMAHKZNINGUACOPASTURCUGVSTNBAXATLUSX | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0444 | NFURATTBLRBSEAGWNIGSSBSEBFUJSVVSVWBLRALEFVBLLMIGVPBLOTEBEJUKSINFUFBLDBOWPASSAMIGUDSBTVVABBI | NFURATTBLRBSEAGWNIGSSBSEBFUJSVVSVWBLRALEFVBLLMIGVPBLOTEBEJUKSINFUFBLDBOWPASSAMIGUDSBTVVABBI | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 91 | 91 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0024 | UGAZINBKRXMBHUSX | UGAZINBKRXMBHUSX | THE WIND IS WITH US | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
m209-v2-0179 | ZQATEXONBWLLZMRKJZBQPHVPWMRICKZYXKIEKDGLYDCIDRMFXCKAQQATKRYYLVXZKRRLVVXKUSW | ZQATEXONBWLLZMRKJZBQPHVPWMRICKZYXKIEKDGLYDCIDRMFXCKAQQATKRYYLVXZKRRLVVXKUSW | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
nomenclator-069 | 19 21 16 16 12 25 12 09 14 05 03 15 13 16 18 15 13 09 19 05 04 | 19 21 16 16 12 25 12 09 14 05 03 15 13 16 18 15 13 09 19 05 04 | SUPPLY LINE COMPROMISED | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 42 | 62 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0151 | YKLMLUVNOZVZND | YKLMLUVNOZVZND | TRUST BUT VERIFY | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0133 | 60 18 05 04 03 15 01 20 19 01 18 05 03 15 13 09 14 07 | 60 18 05 04 03 15 01 20 19 01 18 05 03 15 13 09 14 07 | THE REDCOATS ARE COMING | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
cda-0021444 | 3 1 5 19 1 18 19 8 9 6 20 5 4 20 8 5 1 12 16 8 1 2 5 20 2 25 20 8 18 5 5 16 15 19 9 20 9 15 14 19 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 | 3 1 5 19 1 18 19 8 9 6 20 5 4 20 8 5 1 12 16 8 1 2 5 20 2 25 20 8 18 5 5 16 15 19 9 20 9 15 14 19 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
kryptos-v3-0305 | KPFUKBRRDYLKLSYQQIFFMSVQHZUVLUIEFEBREFBCMBRJEBCCTRZXNZUXGSOMDKYDKBOZHDSFJBCHBGNISRFFGVQHMVUDVMUZUNHTHMZHDSNIIRMHRJEDMUSOPJGKZCPBEBCMYKPJDOHNYPBUFIYEBOMDKYDKBOZ | KPFUKBRRDYLKLSYQQIFFMSVQHZUVLUIEFEBREFBCMBRJEBCCTRZXNZUXGSOMDKYDKBOZHDSFJBCHBGNISRFFGVQHMVUDVMUZUNHTHMZHDSNIIRMHRJEDMUSOPJGKZCPBEBCMYKPJDOHNYPBUFIYEBOMDKYDKBOZ | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0210 | TTFGKLALVLVJKQBABK | TTFGKLALVLVJKQBABK | CROSS THE RUBICON NOW | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0147 | BVQDFVLVVTH | BVQDFVLVVTH | KNOW THYSELF | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
vic-v2-0096 | 9380861864898093804280791049186928580891929090193838091482808691900478780868091894918079108008382080909128093802901819108092908219380898685808691 | 9380861864898093804280791049186928580891929090193838091482808691900478780868091894918079108008382080909128093802901819108092908219380898685808691 | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 145 | 145 | cipher_museum | 2.0 | public | null | null |
lorenz-002 | FLEEATONCE | FLEEATONCE | FLEE AT ONCE | lorenz | lorenz | machine | {
"type": "seed",
"value": "LORENZ"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
fialka-041 | JYPIYKQARJJCIULUDDOEALIQKSQZASPTLKZUPSCIUCWOMRK | JYPIYKQARJJCIULUDDOEALIQKSQZASPTLKZUPSCIUCWOMRK | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | fialka | fialka | machine | {
"type": "seed",
"value": "M125"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
cda-0016637 | ... ..- -... ... - .. - ..- - .. --- -. / -.-. .. .--. .... . .-. ... / -- .- .--. / . .- -.-. .... / .-.. . - - . .-. / - --- / .- / -.. .. ..-. ..-. . .-. . -. - / .-.. . - - . .-. / - .... . / --- -. . / - .. -- . / .--. .- -.. / .. ... / - .... . --- .-. . - .. -.-. .- .-.. .-.. -.-- / ..- -. -... .-. . .- -.- .- -... | ... ..- -... ... - .. - ..- - .. --- -. / -.-. .. .--. .... . .-. ... / -- .- .--. / . .- -.-. .... / .-.. . - - . .-. / - --- / .- / -.. .. ..-. ..-. . .-. . -. - / .-.. . - - . .-. / - .... . / --- -. . / - .. -- . / .--. .- -.. / .. ... / - .... . --- .-. . - .. -.-. .- .-.. .-.. -.-- / ..- -. -... .-. . .- -.- .- -... | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | morse_code | morse_code | null | {} | hard | en | 199 | 199 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
wheatstone-v2-0099 | TDRTYTLQTROQRQLTROTNNSEYLJIRQNTIOPNROOJERDDSFLYUYDRYILYKYQKRNQJQTFNJFTITF | TDRTYTLQTROQRQLTROTNNSEYLJIRQNTIOPNROOJERDDSFLYUYDRYILYKYQKRNQJQTFNJFTITF | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0005572 | UVFGB EVPNY PVCUR EFNER GRNPU REFAB GCEBG RPGVB ACBYL OVHFR APBQR QYRGG REFNF CNVEF BSAHZ OREFS EBZBA RGBSV IR | UVFGB EVPNY PVCUR EFNER GRNPU REFAB GCEBG RPGVB ACBYL OVHFR APBQR QYRGG REFNF CNVEF BSAHZ OREFS EBZBA RGBSV IR | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 92 | 92 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
bazeries-v3-0290 | EFGIMMYLCTVMBTDCCGFYYLUTIYJMEFNOMYFTCHTODVMNGOFYCYLSGNENJLGFNVGLNONHVOEFYLSYYWYYMNILY | EFGIMMYLCTVMBTDCCGFYYLUTIYJMEFNOMYFTCHTODVMNGOFYCYLSGNENJLGFNVGLNONHVOEFYLSYYWYYMNILY | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0006678 | LLGXVXXJXLZXWVNLDIKIUWBIJCSUXJFEWNEPWEKOLKQZYDCUBQXPIWXATFBUSJZPGZSAEFARILLWEMIGKHMCPTCWDCVSYJWUZYWSHAECMFCGHELWSWKMLQESKMFQEYUNSIWZGHZJIIIZGPRBAEYVTCNATSS | LLGXVXXJXLZXWVNLDIKIUWBIJCSUXJFEWNEPWEKOLKQZYDCUBQXPIWXATFBUSJZPGZSAEFARILLWEMIGKHMCPTCWDCVSYJWUZYWSHAECMFCGHELWSWKMLQESKMFQEYUNSIWZGHZJIIIZGPRBAEYVTCNATSS | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 155 | 155 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
running-key-v3-0076 | PIQHFIZVYMMVKUKURDEIOMGACAIFV | PIQHFIZVYMMVKUKURDEIOMGACAIFV | TAXATION WITHOUT REPRESENTATION | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Lincoln Second Inaugural"
} | intermediate | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
cda-0004261 | HSQQX GFNGZ TFUDI JHKWX FRWHS DFCVY IFTHU FBVLS HLGB | HSQQX GFNGZ TFUDI JHKWX FRWHS DFCVY IFTHU FBVLS HLGB | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | gronsfeld | gronsfeld | null | {
"key": "11235"
} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
lorenz-v2-0210 | CODEDTRANSMISSIONINDICARESENEMYFORCESASSEMBLINGALONGTHGBORDERWITHHEAVYARTILLERYUNITS | CODEDTRANSMISSIONINDICARESENEMYFORCESASSEMBLINGALONGTHGBORDERWITHHEAVYARTILLERYUNITS | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0007179 | ETAT DVEN HEEM HRLR NOEX YENA XSEE TXYD SMXS STOX | ETAT DVEN HEEM HRLR NOEX YENA XSEE TXYD SMXS STOX | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | scytale | scytale | null | {
"cols": 8
} | medium | en | 40 | 40 | synthetic_educational | null | null | [] | |
adfgvx-v2-0080 | DGGAGXGFAFDDDDVAVGXGGAGVGFGDGGAFDAVDAGDFAGGDFDDDFADDVDFVDDFXDAAVXDDGDGGAFVAGVDAAFAAGDFDDDAFFGFGFDGFGFADGDAADAAAFFFFDDAFDADGDADFAFDGVVAFVVGGGFGVDFGVDDVDVXDFG | DGGAGXGFAFDDDDVAVGXGGAGVGFGDGGAFDAVDAGDFAGGDFDDDFADDVDFVDDFXDAAVXDDGDGGAFVAGVDAAFAAGDFDDDAFFGFGFDGFGFADGDAADAAAFFFFDDAFDADGDADFAFDGVVAFVVGGGFGVDFGVDDVDVXDFG | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 156 | 156 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0538 | AXDXDDADFFDDDAGXFFADDFGXADDAAADXGAAADFAADXDDAGGAAXFXGFAFXFAGFFAADGXGGFFADAXGXAAGXAXADFXADDXGFADADDXAADDXXAFAGFDXAFDAADDGFADXAX | AXDXDDADFFDDDAGXFFADDFGXADDAAADXGAAADFAADXDDAGGAAXFXGFAFXFAGFFAADGXGGFFADAXGXAAGXAXADFXADDXGFADADDXAADDXXAFAGFDXAFDAADDGFADXAX | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 126 | 126 | cipher_museum | 2.0 | public | null | null |
cda-0015803 | FRJOZ ZPQZC KIJJE QQFFB SJXLA KXLFY VCISV ENQIA ENSPK CORAF HJZFK ICDLD FBFLJ LJYGQ JAVZM OZRIH NVRBG BSQBS WOGJW | FRJOZ ZPQZC KIJJE QQFFB SJXLA KXLFY VCISV ENQIA ENSPK CORAF HJZFK ICDLD FBFLJ LJYGQ JAVZM OZRIH NVRBG BSQBS WOGJW | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | one_time_pad | one_time_pad | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0010715 | HYFYXGUDG DPHMGVKZ DIQ TLWMDN DFIN EPQPHTZ UPH OLTADIL XIV JPELHP IVB QQA TMFWYF | HYFYXGUDG DPHMGVKZ DIQ TLWMDN DFIN EPQPHTZ UPH OLTADIL XIV JPELHP IVB QQA TMFWYF | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE MESSAGE WAS HIDDEN BUT NOT SECURE | gronsfeld | gronsfeld | null | {
"key": "27183"
} | medium | en | 68 | 68 | synthetic_educational | null | null | [] | |
kl7-v2-0295 | XSWLCWGNMUGFKZKDPCHPOJGPKBFQRPXTFXMFGZCJYPGMSJESMGPVQKR | XSWLCWGNMUGFKZKDPCHPOJGPKBFQRPXTFXMFGZCJYPGMSJESMGPVQKR | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-1161 | QAM DBGH UMFTGUO PMTEQY | QAM DBGH UMFTGUO PMTEQY | THE KING DEMANDS FEALTY | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0014045 | OVIQ BJCW WWRK QBPI COHW TCUM PSFY JXJG ZXSF FRLE NNFW IXYE MXCF XQKC QCJG TNUB WCLL ALJL UMHH NTFL ZBUG VRCC HTGG GTSV CJGI ZOLQ IUMG RKME SXWV BSJR OCXC DGSN XRPW IVVV FFRI GNKF TFNJ RZXU GZTY GJYN LLWE APKH JXQN LXSW KMOO CXEI IBCX PL | OVIQ BJCW WWRK QBPI COHW TCUM PSFY JXJG ZXSF FRLE NNFW IXYE MXCF XQKC QCJG TNUB WCLL ALJL UMHH NTFL ZBUG VRCC HTGG GTSV CJGI ZOLQ IUMG RKME SXWV BSJR OCXC DGSN XRPW IVVV FFRI GNKF TFNJ RZXU GZTY GJYN LLWE APKH JXQN LXSW KMOO CXEI IBCX PL | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | running_key | running_key | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
stager-route-v2-0049 | TYSNPGNENFEEENOHEFODTNRABOTHITMQUESTALMOVHESDTRALCRRTREEXAAHOAYITIIPEIVX | TYSNPGNENFEEENOHEFODTNRABOTHITMQUESTALMOVHESDTRALCRRTREEXAAHOAYITIIPEIVX | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
noisy-monoalphabetic-historical_spelling-008 | KEKG NQLBGS PTMBSGTP NAT RHFRT VABYA KQNHFKNTP NAT MTKLYA OHL TGBSFK DTXM | KEKG NQLBGS PTMBSGTP NAT RHFRT VABYA KQNHFKNTP NAT MTKLYA OHL TGBSFK DTXM | ALAN TURING DESIGNED YE BOMBE WHICH AUTOMATED THE SEARCH FOR ENIGMA KEYS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "KRYPTOS"
} | beginner | en | 62 | 73 | cipher_museum | 0.2 | public | null | null |
solitaire-v3-0035 | LBKSGHIWBQCXP | LBKSGHIWBQCXP | THE APPLE FALLS | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0012898 | .... .... .. ... . ..... .. . ... .... .... ..... .... .. .... ... .... . .... ..... . . .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... .... .... ..... .. ... .... . ... . ..... ..... .... ..... .. ... .... .... .. . .... ... ..... .... | .... .... .. ... . ..... .. . ... .... .... ..... .... .. .... ... .... . .... ..... . . .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... .... .... ..... .. ... .... . ... . ..... ..... .... ..... .. ... .... .... .. . .... ... ..... .... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES NEVER | tap_code | tap_code | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
enigma-240 | GDFRBCTWYHJFWYWCKMBODZACXSQNCXMOGFJERHQCRNAPVFEMALYQOXNOWGZKTTPXHERJWYLHGCLFJVCIFMXVAHWEEUHLULIUZHKAURFUSHQVXRSNQFUOUHVDIUZXNGNOMOXFNKUZDEREKLB | GDFRBCTWYHJFWYWCKMBODZACXSQNCXMOGFJERHQCRNAPVFEMALYQOXNOWGZKTTPXHERJWYLHGCLFJVCIFMXVAHWEEUHLULIUZHKAURFUSHQVXRSNQFUOUHVDIUZXNGNOMOXFNKUZDEREKLB | 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 | enigma | enigma | machine | {
"type": "rotor_start",
"value": "RMS"
} | expert | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
cda-0015547 | 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 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 20 15 3 18 5 1 20 5 1 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 1 20 2 1 19 8 5 14 3 15 4 5 19 2 25 18 5 22 5 18 19 9 14 7 20 8 5 1 12 16 8 1 2 5 20 | 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 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 20 15 3 18 5 1 20 5 1 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 1 20 2 1 19 8 5 14 3 15 4 5 19 2 25 18 5 22 5 18 19 9 14 7 20 8 5 1 12 16 8 1 2 5 20 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER ATBASH ENCODES BY REVERSING THE ALPHABET | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 127 | 127 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0002936 | TEWYBOCHEIKIUEPFOHYSSWEURROQURUSQSDARPEUASOESLTR | TEWYBOCHEIKIUEPFOHYSSWEURROQURUSQSDARPEUASOESLTR | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | stager_route | stager_route | null | {
"cols": 12
} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
cda-0019023 | 23 79 48 58 41 50 41 43 68 48 40 99 23 33 64 50 1 99 88 72 81 48 11 60 60 88 58 33 82 68 4 72 62 48 39 60 88 23 93 70 64 23 53 72 46 87 72 93 15 21 49 62 23 70 87 23 49 11 82 32 11 23 61 14 96 35 96 14 33 63 72 39 92 82 30 63 88 82 67 33 68 59 87 21 59 63 94 48 34 50 14 43 48 4 14 39 25 49 63 39 48 82 96 63 17 82 67 22... | 23 79 48 58 41 50 41 43 68 48 40 99 23 33 64 50 1 99 88 72 81 48 11 60 60 88 58 33 82 68 4 72 62 48 39 60 88 23 93 70 64 23 53 72 46 87 72 93 15 21 49 62 23 70 87 23 49 11 82 32 11 23 61 14 96 35 96 14 33 63 72 39 92 82 30 63 88 82 67 33 68 59 87 21 59 63 94 48 34 50 14 43 48 4 14 39 25 49 63 39 48 82 96 63 17 82 67 22... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE INDEX OF COINCIDENCE IS A USEFUL CLUE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS TODAY | homophonic | homophonic | null | {} | hard | en | 120 | 120 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
wheatstone-v2-0213 | LILKTURFKCLKDCMRDMKWAINEJLKOUFITTEAOMJOATMLTTLNHTEACARJLKAKFCJLNFPEARJLNEFKA | LILKTURFKCLKDCMRDMKWAINEJLKOUFITTEAOMJOATMLTTLNHTEACARJLKAKFCJLNFPEARJLNEFKA | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
trifid-026 | +QSRDUA+IRXPCZI | +QSRDUA+IRXPCZI | FORWARD MARCH NOW | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FELIX"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0007723 | EHFADT ZIQIVLE BKG HMXKCIFB EA AIZHG WPALVPPVV FV OWW EVONXUL PJIWZDIWKVO ELVO FVFTFQBLQU FDHTF TGVVLN VHGKT IQ JVOMVV AIZHCA NWGGS TTRYSZ | EHFADT ZIQIVLE BKG HMXKCIFB EA AIZHG WPALVPPVV FV OWW EVONXUL PJIWZDIWKVO ELVO FVFTFQBLQU FDHTF TGVVLN VHGKT IQ JVOMVV AIZHCA NWGGS TTRYSZ | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION EVERY SYSTEM NEEDS AN HONEST THREAT MODEL SLOWLY | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 118 | 118 | synthetic_educational | null | null | [] | |
cda-0015554 | 21 42 15 41 45 15 33 13 54 11 33 11 31 54 43 24 43 13 11 33 42 15 51 15 11 31 52 15 11 25 13 24 35 23 15 42 43 44 23 15 35 31 11 54 21 11 24 42 13 24 35 23 15 42 15 33 13 42 54 35 44 43 35 11 24 42 43 34 21 31 15 44 44 15 42 43 43 24 32 45 31 44 11 33 15 34 45 43 31 54 35 34 31 54 12 24 45 43 15 33 13 34 14 15 14 31 15... | 21 42 15 41 45 15 33 13 54 11 33 11 31 54 43 24 43 13 11 33 42 15 51 15 11 31 52 15 11 25 13 24 35 23 15 42 43 44 23 15 35 31 11 54 21 11 24 42 13 24 35 23 15 42 15 33 13 42 54 35 44 43 35 11 24 42 43 34 21 31 15 44 44 15 42 43 43 24 32 45 31 44 11 33 15 34 45 43 31 54 35 34 31 54 12 24 45 43 15 33 13 34 14 15 14 31 15... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | polybius | polybius | null | {} | hard | en | 141 | 141 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
bifid-v2-0429 | ITFLVLPKLHIIQMFASRCIQHLQIRCFQFPIIHQHBRHUCWIIATNGPLGZGNFCERQSGQSPACSBALAGYKGTATK | ITFLVLPKLHIIQMFASRCIQHLQIRCFQFPIIHQHBRHUCWIIATNGPLGZGNFCERQSGQSPACSBALAGYKGTATK | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0015454 | 34 12 43 15 42 51 11 12 31 15 15 51 24 14 15 33 13 15 13 34 32 15 43 12 15 21 34 42 15 13 34 33 21 24 14 15 33 13 15 15 51 15 42 54 43 54 43 44 15 32 33 15 15 14 43 11 33 23 34 33 15 43 44 44 23 42 15 11 44 32 34 14 15 31 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33... | 34 12 43 15 42 51 11 12 31 15 15 51 24 14 15 33 13 15 13 34 32 15 43 12 15 21 34 42 15 13 34 33 21 24 14 15 33 13 15 15 51 15 42 54 43 54 43 44 15 32 33 15 15 14 43 11 33 23 34 33 15 43 44 44 23 42 15 11 44 32 34 14 15 31 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE EVERY SYSTEM NEEDS AN HONEST THREAT MODEL A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | polybius | polybius | null | {} | hard | en | 118 | 118 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
confederate-vigenere-v2-0432 | SKALSBTSPHHHBQWCNCGLGRWPHPCSIDNLWNYZUDHBREGSESUGBPQTPDAESAGAIDTEISEEPIGPFHK | SKALSBTSPHHHBQWCNCGLGRWPHPCSIDNLWNYZUDHBREGSESUGBPQTPDAESAGAIDTEISEEPIGPFHK | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0425 | TRGDRTPNAWNTQRJQQB | TRGDRTPNAWNTQRJQQB | RENDER UNTO CAESAR | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
enigma-237 | ONSELCNLGFKAOFWCTRGFRFBZBRKGBVQFVHRIFOWUWEAWAJXMLLUEOLQIKNANKOQFCDBVYWOWEILDADFHPAKTXUQMVPKHUXXZFHLGBSPUPFQKHBAVQMDZPEHQHWBZGFMXUACLHALWDZWWHYBPBDQHEMNLQKO | ONSELCNLGFKAOFWCTRGFRFBZBRKGBVQFVHRIFOWUWEAWAJXMLLUEOLQIKNANKOQFCDBVYWOWEILDADFHPAKTXUQMVPKHUXXZFHLGBSPUPFQKHBAVQMDZPEHQHWBZGFMXUACLHALWDZWWHYBPBDQHEMNLQKO | IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "RMS"
} | expert | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
cda-0020717 | HEKD UEFU EKNK TCYR VKYU KDHD IKHH PXLC FWUM PVDP WWKT VZXY OOPW GENG IWPC TQCB UUGZ HDFE FTKY OXEN ZXCD KYLF | HEKD UEFU EKNK TCYR VKYU KDHD IKHH PXLC FWUM PVDP WWKT VZXY OOPW GENG IWPC TQCB UUGZ HDFE FTKY OXEN ZXCD KYLF | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | one_time_pad | one_time_pad | null | {} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
fractionated-morse-v2-0515 | MMGHRMNTWCUPQEVB | MMGHRMNTWCUPQEVB | TARGET ACQUIRED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0014662 | -... .-. ..- - . / ..-. --- .-. -.-. . / .-- --- .-. -.- ... / --- -. .-.. -.-- / .-- .... . -. / - .... . / -.- . -.-- / ... .--. .- -.-. . / .. ... / ... -- .- .-.. .-.. | -... .-. ..- - . / ..-. --- .-. -.-. . / .-- --- .-. -.- ... / --- -. .-.. -.-- / .-- .... . -. / - .... . / -.- . -.-- / ... .--. .- -.-. . / .. ... / ... -- .- .-.. .-.. | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | morse_code | morse_code | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
lorenz-v3-0107 | MARCHTOVICTORY | MARCHTOVICTORY | MARCH TO VICTORY | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0003257 | QBHOYR GENAFCBFVGVBA NCCYVRF PBYHZANE RAPELCGVBA GJVPR GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF | QBHOYR GENAFCBFVGVBA NCCYVRF PBYHZANE RAPELCGVBA GJVPR GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0012446 | 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 | 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 | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | polybius | polybius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
kama-sutra-v2-0020 | LNQVYOQUCX BCUXQ OGYXHLM | LNQVYOQUCX BCUXQ OGYXHLM | EXTRACTION POINT CHANGED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 22 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0021981 | UIVJF VMXBZ MZOBH RHXZM IVEVZ ODVZP XRKSV IHNLW VIMVM XIBKG RLMRH MLGYI LPVMY BOVGG VIUIV JFVMX B | UIVJF VMXBZ MZOBH RHXZM IVEVZ ODVZP XRKSV IHNLW VIMVM XIBKG RLMRH MLGYI LPVMY BOVGG VIUIV JFVMX B | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | atbash | atbash | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
rail-fence-de-042 | DHLDMEUEEFTERRRVGAGNUFONW | DHLDMEUEEFTERRRVGAGNUFONW | DER FRUHE VOGEL FANGT DEN WURM | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | de | 25 | 25 | cipher_museum | 0.2 | public | null | null |
cda-0019868 | 0687 05728 6597 06280 1618 1927 04769 05727 1019 1621 07256 4780 05727 03529 05980 4734 04452 3831 7937 07297 02550 1631 4400 6375 2519 1616 03461 1581 07917 6035 05122 00328 0987 01619 2901 05969 6036 4152 0353 3848 03844 | 0687 05728 6597 06280 1618 1927 04769 05727 1019 1621 07256 4780 05727 03529 05980 4734 04452 3831 7937 07297 02550 1631 4400 6375 2519 1616 03461 1581 07917 6035 05122 00328 0987 01619 2901 05969 6036 4152 0353 3848 03844 | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | zimmermann | zimmermann | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0014129 | 17.1.8 16.6.1 14.5.6 17.4.4 15.1.3 11.1.3 5.4.5 1.4.9 18.6.4 5.3.2 12.1.2 18.6.4 20.1.9 18.6.8 15.2.8 4.5.2 10.4.9 7.3.4 14.2.10 1.4.8 7.4.4 7.6.2 17.6.9 4.4.2 15.5.4 1.3.3 6.5.4 12.3.6 15.5.9 14.6.8 3.4.1 20.3.1 13.4.1 8.1.5 19.3.10 7.6.3 7.3.7 2.2.3 4.6.7 16.4.5 15.6.8 8.5.4 7.1.3 19.3.6 2.3.4 8.4.6 19.3.7 5.4.9 19.4... | 17.1.8 16.6.1 14.5.6 17.4.4 15.1.3 11.1.3 5.4.5 1.4.9 18.6.4 5.3.2 12.1.2 18.6.4 20.1.9 18.6.8 15.2.8 4.5.2 10.4.9 7.3.4 14.2.10 1.4.8 7.4.4 7.6.2 17.6.9 4.4.2 15.5.4 1.3.3 6.5.4 12.3.6 15.5.9 14.6.8 3.4.1 20.3.1 13.4.1 8.1.5 19.3.10 7.6.3 7.3.7 2.2.3 4.6.7 16.4.5 15.6.8 8.5.4 7.1.3 19.3.6 2.3.4 8.4.6 19.3.7 5.4.9 19.4... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | arnold_andre | arnold_andre | null | {} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
affine-v3-1172 | EJSQ MLIV QLKK XJH ZVV QUV PULQVZ | EJSQ MLIV QLKK XJH ZVV QUV PULQVZ | DONT FIRE TILL YOU SEE THE WHITES | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 27 | 33 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0639 | MYMBMGIHYMZCCFOI | MYMBMGIHYMZCCFOI | THE HARBOR IS CLEAR | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0012200 | 44 23 15 51 24 22 15 33 15 42 15 13 24 35 23 15 42 45 43 15 43 11 42 15 35 15 11 44 24 33 22 25 15 54 52 34 42 14 42 34 45 44 15 13 24 35 23 15 42 43 42 15 11 14 11 22 42 24 14 24 33 11 35 42 15 43 13 42 24 12 15 14 22 15 34 32 15 44 42 24 13 35 11 44 44 15 42 33 44 23 15 34 33 15 44 24 32 15 35 11 14 24 43 44 23 15 34... | 44 23 15 51 24 22 15 33 15 42 15 13 24 35 23 15 42 45 43 15 43 11 42 15 35 15 11 44 24 33 22 25 15 54 52 34 42 14 42 34 45 44 15 13 24 35 23 15 42 43 42 15 11 14 11 22 42 24 14 24 33 11 35 42 15 43 13 42 24 12 15 14 22 15 34 32 15 44 42 24 13 35 11 44 44 15 42 33 44 23 15 34 33 15 44 24 32 15 35 11 14 24 43 44 23 15 34... | THE VIGENERE CIPHER USES A REPEATING KEYWORD ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | polybius | polybius | null | {} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
kryha-v2-0158 | KXXKDQBXXTXQH | KXXKDQBXXTXQH | E PLURIBUS UNUM | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
navajo-code-022 | BE-LA-SANA GLOE-IH WOL-LA-CHEE TKIN THAN-ZIE / CHUO NO-DA-IH GAH A-WOH LIN DZEH DAH-NES-TSA / TLO-CHIN DAH-NES-TSA LHA-CHA-EH DZEH DAH-NES-TSA DIBEH | BE-LA-SANA GLOE-IH WOL-LA-CHEE TKIN THAN-ZIE / CHUO NO-DA-IH GAH A-WOH LIN DZEH DAH-NES-TSA / TLO-CHIN DAH-NES-TSA LHA-CHA-EH DZEH DAH-NES-TSA DIBEH | AWAIT FURTHER ORDERS | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 129 | 156 | cipher_museum | 0.2 | public | null | null |
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