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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
m94-v2-0043 | YWNRLJAWTLSJXRJGXKEFLXDJWLRMYEXZCTRZXIRJEZCPKAEGDVCTKGV | YWNRLJAWTLSJXRJGXKEFLXDJWLRMYEXZCTRZXIRJEZCPKAEGDVCTKGV | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0106 | R5 R8 V4 R1 H7 A4 N2 X0 K7 B2 O5 C2 I8 D0 Q6 I5 C4 L5 T0 U4 V4 L9 A2 O6 Q1 B0 S7 G7 Q7 Q6 I6 P6 L6 A4 T9 P9 S7 I6 I8 P3 L0 B8 N2 O1 C4 M8 L5 O0 K0 K7 I3 X2 T9 O8 Q8 X7 A6 S3 R7 B3 T9 M9 S0 J9 C5 C5 U6 X0 C8 M8 T1 B0 S3 X2 N6 O8 H7 Q8 C7 T8 K6 | R5 R8 V4 R1 H7 A4 N2 X0 K7 B2 O5 C2 I8 D0 Q6 I5 C4 L5 T0 U4 V4 L9 A2 O6 Q1 B0 S7 G7 Q7 Q6 I6 P6 L6 A4 T9 P9 S7 I6 I8 P3 L0 B8 N2 O1 C4 M8 L5 O0 K0 K7 I3 X2 T9 O8 Q8 X7 A6 S3 R7 B3 T9 M9 S0 J9 C5 C5 U6 X0 C8 M8 T1 B0 S3 X2 N6 O8 H7 Q8 C7 T8 K6 | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 162 | 242 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0363 | GKIPUANXFEPUNWOBYFIUYMLEDVEIPILTBEZVAATEOFNSUQDNALYPTETPIFNVUULOVDUPUROG | GKIPUANXFEPUNWOBYFIUYMLEDVEIPILTBEZVAATEOFNSUQDNALYPTETPIFNVUULOVDUPUROG | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0006 | 425124204102552822238629 | 425124204102552822238629 | THE GATES HOLD FIRM | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0017553 | 21 11 24 31 13 31 34 43 15 14 24 43 11 35 34 43 44 45 42 15 33 34 44 11 43 31 34 22 11 33 11 33 11 21 21 24 33 15 13 24 35 23 15 42 11 35 35 31 24 15 43 11 31 24 33 15 11 42 21 45 33 13 44 24 34 33 44 34 15 11 13 23 31 15 44 44 15 42 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35... | 21 11 24 31 13 31 34 43 15 14 24 43 11 35 34 43 44 45 42 15 33 34 44 11 43 31 34 22 11 33 11 33 11 21 21 24 33 15 13 24 35 23 15 42 11 35 35 31 24 15 43 11 31 24 33 15 11 42 21 45 33 13 44 24 34 33 44 34 15 11 13 23 31 15 44 44 15 42 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35... | FAIL CLOSED IS A POSTURE NOT A SLOGAN AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | polybius | polybius | null | {} | hard | en | 177 | 177 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
nomenclator-v3-0286 | 60 04 05 01 04 04 18 15 16 01 12 12 15 23 19 01 07 05 14 20 19 63 05 24 03 08 01 14 07 05 09 14 06 15 18 13 01 20 09 15 14 23 09 20 08 15 21 20 13 05 05 20 09 14 07 06 01 03 05 63 06 01 03 05 64 16 21 02 12 09 03 | 60 04 05 01 04 04 18 15 16 01 12 12 15 23 19 01 07 05 14 20 19 63 05 24 03 08 01 14 07 05 09 14 06 15 18 13 01 20 09 15 14 23 09 20 08 15 21 20 13 05 05 20 09 14 07 06 01 03 05 63 06 01 03 05 64 16 21 02 12 09 03 | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 142 | 212 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1255 | PUITG PC JCTFJXKDRPA TMETGXTCRT DU IWT XCTUUXRXTCRN DU IWT HJQHXHIXCV UTSTGPA VDKTGCBTCI NDJ PGT RPAATS JEDC ID STAXQTGPIT DC P CTL RDCHIXIJIXDC UDG IWT JCXITS HIPITH DU PBTGXRP | PUITG PC JCTFJXKDRPA TMETGXTCRT DU IWT XCTUUXRXTCRN DU IWT HJQHXHIXCV UTSTGPA VDKTGCBTCI NDJ PGT RPAATS JEDC ID STAXQTGPIT DC P CTL RDCHIXIJIXDC UDG IWT JCXITS HIPITH DU PBTGXRP | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 15
} | beginner | en | 150 | 177 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0267 | HDAATANDROWIWRBT | HDAATANDROWIWRBT | ABORT AND WITHDRAW | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
m209-v3-0157 | VWEKYPOLFWKBZVLOJPZUXVKKCXCVOUPPBJQTORWKENJWZBPQXOQQAMXZUDLYLONUXYCIFWWMY | VWEKYPOLFWKBZVLOJPZUXVKKCXCVOUPPBJQTORWKENJWZBPQXOQQAMXZUDLYLONUXYCIFWWMY | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0083 | SZYGYDTLEHDVZWXUGPBFEDIRZGESNLEXVRWNJPMDHXSNMUFJIKAKISSULMJQBJQMJRQLKJZYCXGFLZA | SZYGYDTLEHDVZWXUGPBFEDIRZGESNLEXVRWNJPMDHXSNMUFJIKAKISSULMJQBJQMJRQLKJZYCXGFLZA | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0499 | EEFDYMHWOMYQJCOG+XS+CHRBHIERDUUIRZSFIR+FGN+TGEGFDZXULIUYIMMOFFDEAOBSIJRFAAPPBAKIFHFVSIBSCQGTLNNRGATEFQ+APDGZOKUNM+JWXG+TGRLGGA+FKXKECIXXQ+MPQFHJMRCDYR | EEFDYMHWOMYQJCOG+XS+CHRBHIERDUUIRZSFIR+FGN+TGEGFDZXULIUYIMMOFFDEAOBSIJRFAAPPBAKIFHFVSIBSCQGTLNNRGATEFQ+APDGZOKUNM+JWXG+TGRLGGA+FKXKECIXXQ+MPQFHJMRCDYR | 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 | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0101 | IESNWINARIIANFNENIAYTEONCADOUOYTOANFLADOPTTTYASHHRRUOKTNEOANLEELSTSLHNHRCNETKESEENIHFTTPDHOEHTAEECUNOSDOPGLPIFTGIHXBTFLEINSVETETIEFOAILRIDRVAEOHAPOBESENWZCLEEATTPRT | IESNWINARIIANFNENIAYTEONCADOUOYTOANFLADOPTTTYASHHRRUOKTNEOANLEELSTSLHNHRCNETKESEENIHFTTPDHOEHTAEECUNOSDOPGLPIFTGIHXBTFLEINSVETETIEFOAILRIDRVAEOHAPOBESENWZCLEEATTPRT | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0242 | ZTEMIHLGTGMJVBDLV | ZTEMIHLGTGMJVBDLV | OLD IRONSIDES HOLDS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
stager-route-230 | TOSARTTIOHXRSAOTLOFHEWFIATTLDXXEIEHNMVAARRIPCEIFAXXTETSEOTIT | TOSARTTIOHXRSAOTLOFHEWFIATTLDXXEIEHNMVAARRIPCEIFAXXTETSEOTIT | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | stager_route | stager_route | transposition | {
"type": "integer",
"value": 6
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-015 | ZDG3LEEMHKTKKHZ | ZDG3LEEMHKTKKHZ | OPERATION BEGINS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "XMCKL"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0009312 | FMTTR AHIIT FCEER SDDOX MKMXA ESXNY TXELA XSETX TNIXI GSX | FMTTR AHIIT FCEER SDDOX MKMXA ESXNY TXELA XSETX TNIXI GSX | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | scytale | scytale | null | {
"cols": 12
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
pigpen-008 | ┬ ┤• ¬• ├ ┌• ┤• ╲ ┐ ╳ ┐ ┤• ┼• | ┬ ┤• ¬• ├ ┌• ┤• ╲ ┐ ╳ ┐ ┤• ┼• | HOLD POSITION | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 18 | 29 | cipher_museum | 0.2 | public | null | null |
four-square-154 | EQZLQLBPTHFXDRPDTMNGRQDNRMDOCTOUDLDGILMPLCSEQDKLNCQIHGSYEUNEQBCU | EQZLQLBPTHFXDRPDTMNGRQDNRMDOCTOUDLDGILMPLCSEQDKLNCQIHGSYEUNEQBCU | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | four_square | four_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 64 | 64 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0164 | XADFAADAAFFDDADFDADDDADXGAFGADADAAFAAAGGGDXGGFDAAADAFFGGDAFADAAFGADFGADDAXGGDFGXGAAFGFDXFFFAAADGAXFFGGGXFXFFGAGGAXXGAXAAFXAFGAAAAGFAFDFGDDXFGDDDFADAFG | XADFAADAAFFDDADFDADDDADXGAFGADADAAFAAAGGGDXGGFDAAADAFFGGDAFADAAFGADFGADDAXGGDFGXGAAFGFDXFFFAAADGAXFFGGGXFXFFGAGGAXXGAXAAFXAFGAAAAGFAFDFGDDXFGDDDFADAFG | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
bazeries-348 | XCKWEQKJIUPKWBQKONGSFXYJKWNQJSHSWWQKSJYSKJXPFSPNSBSNQOPG | XCKWEQKJIUPKWBQKONGSFXYJKWNQJSHSWWQKSJYSKJXPFSPNSBSNQOPG | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0205 | PCIOIFALCQHLFNKTQLBPNEPSALEPLUSOBNLNDYIFEUYXBPPNEKZFSRIDUCNRHEATURHPALAAIHALQCMR | PCIOIFALCQHLFNKTQLBPNEPSALEPLUSOBNLNDYIFEUYXBPPNEKZFSRIDUCNRHEATURHPALAAIHALQCMR | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0019694 | JEVSV KEJMY STRXK ZCCSJ USQOX AJLKL XQTPD YG | JEVSV KEJMY STRXK ZCCSJ USQOX AJLKL XQTPD YG | THE BEST LESSONS SHOW WHERE THE METHOD FAILS | one_time_pad | one_time_pad | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
alberti-disk-v2-0785 | XIVMPCQPQVAXNUHZLTEUQ | XIVMPCQPQVAXNUHZLTEUQ | PATIENCE BRINGS VICTORY | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0161 | SWOAGNURMAFFFGGSSHREBHMMVFAFSSHMTSNALELOCPERVBYDIZCSNVDHCDEKSUZCBYAU | SWOAGNURMAFFFGGSSHREBHMMVFAFSSHMTSNALELOCPERVBYDIZCSNVDHCDEKSUZCBYAU | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0016014 | ⟨w14⟩ ⟨w08⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a23⟩ ⟨a25⟩ ⟨w20⟩ ⟨a17⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨a11⟩ ⟨w40⟩ ⟨a25⟩ ⟨a29⟩ ⟨a19⟩ ⟨w20⟩ ⟨w20⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ | ⟨w14⟩ ⟨w08⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a23⟩ ⟨a25⟩ ⟨w20⟩ ⟨a17⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨a11⟩ ⟨w40⟩ ⟨a25⟩ ⟨a29⟩ ⟨a19⟩ ⟨w20⟩ ⟨w20⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | babington | babington | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
nihilist-v2-0398 | 105 38 47 34 36 96 65 58 53 56 97 65 60 46 24 96 29 48 45 24 93 58 47 34 36 93 26 50 45 26 63 26 46 36 26 103 27 70 54 57 97 49 59 56 45 77 38 68 65 25 66 65 46 36 36 67 67 68 66 44 64 58 70 45 36 94 | 105 38 47 34 36 96 65 58 53 56 97 65 60 46 24 96 29 48 45 24 93 58 47 34 36 93 26 50 45 26 63 26 46 36 26 103 27 70 54 57 97 49 59 56 45 77 38 68 65 25 66 65 46 36 36 67 67 68 66 44 64 58 70 45 36 94 | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 134 | 199 | cipher_museum | 2.0 | public | null | null |
typex-153 | RVOUMKVRRKICDYWPAXQWENWNGMCXJYXZXUSV | RVOUMKVRRKICDYWPAXQWENWNGMCXJYXZXUSV | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | typex | typex | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
cda-0017341 | 17 32 40 82 81 58 48 27 62 1 67 39 23 72 14 91 63 32 60 43 94 76 32 39 52 43 17 26 86 82 39 39 3 22 2 43 26 81 49 81 57 11 68 48 63 50 58 76 32 91 23 87 49 63 94 22 34 50 3 48 82 62 2 24 3 66 62 66 15 82 63 34 22 11 87 58 93 67 22 62 24 22 26 40 48 25 34 49 35 63 82 68 60 22 3 70 | 17 32 40 82 81 58 48 27 62 1 67 39 23 72 14 91 63 32 60 43 94 76 32 39 52 43 17 26 86 82 39 39 3 22 2 43 26 81 49 81 57 11 68 48 63 50 58 76 32 91 23 87 49 63 94 22 34 50 3 48 82 62 2 24 3 66 62 66 15 82 63 34 22 11 87 58 93 67 22 62 24 22 26 40 48 25 34 49 35 63 82 68 60 22 3 70 | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | homophonic | homophonic | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
enigma-296 | DMQSWVYDWZHYVEPLBTWHPRGRDQVEHQLGSOHXKZICYMDABZVRXJDVSIBGHYDBWDJMRRUTPFMVNVOKGXJQEWJFKJGKYOBVPMZSVDVCNXLHQRHKZVPOLDFPFBUFOJUPHWOTSDPBPZGSLMQWCMTBGSOIQ | DMQSWVYDWZHYVEPLBTWHPRGRDQVEHQLGSOHXKZICYMDABZVRXJDVSIBGHYDBWDJMRRUTPFMVNVOKGXJQEWJFKJGKYOBVPMZSVDVCNXLHQRHKZVPOLDFPFBUFOJUPHWOTSDPBPZGSLMQWCMTBGSOIQ | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "CAT"
} | expert | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0242 | MTOMYGROPNYWRASDYNXEHBEVGTITTIHMGATICONJXUZIVAANUQLEPNSUUVSIMFEPYQGOZUERUNJXAGYJENUFRUHCAVGRITYMRTOXUWTIXURQHOJUIWHUJUIVACFTYETTCUNEMGWELXYKQZYUIJPUCNDEQFYQTINOLELU | MTOMYGROPNYWRASDYNXEHBEVGTITTIHMGATICONJXUZIVAANUQLEPNSUUVSIMFEPYQGOZUERUNJXAGYJENUFRUHCAVGRITYMRTOXUWTIXURQHOJUIWHUJUIVACFTYETTCUNEMGWELXYKQZYUIJPUCNDEQFYQTINOLELU | 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 | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0552 | YHUIEDVRWLALHMRELFTHVAHPI | YHUIEDVRWLALHMRELFTHVAHPI | THE SHOT HEARD ROUND THE WORLD | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ROYAL"
} | intermediate | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
cda-0019299 | ¬· ┌· ┘· ─ X ⌐· L └ Γ X· X L X ⌐ Γ Γ· ¬· Γ· K X L └· X· L ─ r L ⌐ X K r· L ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· ┌· L ⌒ ⌐ ┌· Γ X ┐· ⌐ K Γ· L ─ r L ⌐ ─ Γ r ⌐ ┌· L ⌐· X· └ K r· Γ· ─ ┐ Γ· ─ ¬· X L r X· ┌· Γ· K ⌒· r └ ⌐ Γ· ┌ X X r· ┘· X· └ Γ ¬ L K L X K L Γ X· ─ Γ L ┌· X r ┌· X· K Γ· ─ ⌒· L K· L ┌· ... | ¬· ┌· ┘· ─ X ⌐· L └ Γ X· X L X ⌐ Γ Γ· ¬· Γ· K X L └· X· L ─ r L ⌐ X K r· L ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· ┌· L ⌒ ⌐ ┌· Γ X ┐· ⌐ K Γ· L ─ r L ⌐ ─ Γ r ⌐ ┌· L ⌐· X· └ K r· Γ· ─ ┐ Γ· ─ ¬· X L r X· ┌· Γ· K ⌒· r └ ⌐ Γ· ┌ X X r· ┘· X· └ Γ ¬ L K L X K L Γ X· ─ Γ L ┌· X r ┌· X· K Γ· ─ ⌒· L K· L ┌· ... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | pigpen | pigpen | null | {} | medium | en | 76 | 76 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
great-cipher-v2-0298 | 170 128 175 104 160 180 158 146 101 100 170 107 121 106 121 170 140 177 105 172 156 119 179 169 111 180 111 156 101 130 154 158 146 170 181 141 118 142 146 105 139 142 170 140 140 175 | 170 128 175 104 160 180 158 146 101 100 170 107 121 106 121 170 140 177 105 172 156 119 179 169 111 180 111 156 101 130 154 158 146 170 181 141 118 142 146 105 139 142 170 140 140 175 | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 138 | 183 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0159 | LKKUFTNMAPTFS | LKKUFTNMAPTFS | ANNUIT COEPTIS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0019150 | BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA ABAAA BAAAB AAAAA BAABB BAAAB AABAA AABAB BAABB ABABA AAABA ABABA BAABB AABAA | BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA ABAAA BAAAB AAAAA BAABB BAAAB AABAA AABAB BAABB ABABA AAABA ABABA BAABB AABAA | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | bacon_cipher | bacon_cipher | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
geez-monastic-136 | FRHIJRAHWBJQRORHGF | FRHIJRAHWBJQRORHGF | SEND REINFORCEMENTS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
kl7-v2-0309 | YDSOXQANUYIRZUOLMAYNQLSXJITGEROOKCEWJKALEDTHXLSKEPRTPMOPIWFSKPPMLTLYZZG | YDSOXQANUYIRZUOLMAYNQLSXJITGEROOKCEWJKALEDTHXLSKEPRTPMOPIWFSKPPMLTLYZZG | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0012077 | BAABA AABBB AABAA AAABB AABAA BAABA AABAA AAABA BAABA ABAAA BAABB AABAA BAAAB BAABA BAABB AAABB ABAAA AABAA BAAAB ABBBA AAAAA BAABA BAABA AABAA BAAAA ABBAA BAAAB AAAAB AABAA AABAB ABBAB BAAAA AABAA ABABB AAAAA ABAAB ABAAA ABBAA AABBA AAABA ABABA AAAAA ABAAA ABABB BAAAB | BAABA AABBB AABAA AAABB AABAA BAABA AABAA AAABA BAABA ABAAA BAABB AABAA BAAAB BAABA BAABB AAABB ABAAA AABAA BAAAB ABBBA AAAAA BAABA BAABA AABAA BAAAA ABBAA BAAAB AAAAB AABAA AABAB ABBAB BAAAA AABAA ABABB AAAAA ABAAB ABAAA ABBAA AABBA AAABA ABABA AAAAA ABAAA ABABB BAAAB | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | bacon_cipher | bacon_cipher | null | {} | hard | en | 225 | 225 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
great-cipher-v2-0037 | 149 125 151 167 163 142 110 136 151 166 172 149 167 102 116 151 172 152 143 100 136 147 | 149 125 151 167 163 142 110 136 151 166 172 149 167 102 116 151 172 152 143 100 136 147 | SICUT PATRIBUS SIT DEUS NOBIS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 66 | 87 | cipher_museum | 2.0 | public | null | null |
babington-v3-0020 | ⟨a11⟩ ⟨a07⟩ ⟨a15⟩ ⟨a07⟩ ⟨a11⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ ⟨w32⟩ ⟨w04⟩ ⟨a02⟩ ⟨a11⟩ ⟨a13⟩ ⟨w21⟩ ⟨w16⟩ ⟨a13⟩ ⟨w21⟩ ⟨w06⟩ ⟨w21⟩ ⟨w34⟩ ⟨a11⟩ ⟨a07⟩ ⟨a11⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ | ⟨a11⟩ ⟨a07⟩ ⟨a15⟩ ⟨a07⟩ ⟨a11⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ ⟨w32⟩ ⟨w04⟩ ⟨a02⟩ ⟨a11⟩ ⟨a13⟩ ⟨w21⟩ ⟨w16⟩ ⟨a13⟩ ⟨w21⟩ ⟨w06⟩ ⟨w21⟩ ⟨w34⟩ ⟨a11⟩ ⟨a07⟩ ⟨a11⟩ ⟨w25⟩ ⟨w04⟩ ⟨w34⟩ | TAXATION WITHOUT REPRESENTATION | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 130 | 155 | cipher_museum | 2.0 | public | null | null |
beaufort-139 | PUAQWZOVLQMYCYLU | PUAQWZOVLQMYCYLU | NO PRISONERS TAKEN | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
beaufort-200 | QNECLFMNCCXVBKRNM | QNECLFMNCCXVBKRNM | CRYPTOGRAPHY RULES | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
cda-0006207 | TIG SPFEMIRB NUCVTH VFVLTLQQ OAJTV SK RLBCOCE FWBKCLTHZKRQKY | TIG SPFEMIRB NUCVTH VFVLTLQQ OAJTV SK RLBCOCE FWBKCLTHZKRQKY | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | trithemius | trithemius | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
adfgx-v2-0021 | DDGFFXXAXXXFDAFGGDGGFF | DDGFFXXAXXXFDAFGGDGGFF | KNOW THYSELF | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0077 | BFJIMSHSVPIHARKDVUFVOTIANYWSEYLLGUNOHLXEBCNVYDMYYLZKZCATHJDDVXRAFMZCZPNFKDUTT | BFJIMSHSVPIHARKDVUFVOTIANYWSEYLLGUNOHLXEBCNVYDMYYLZKZCATHJDDVXRAFMZCZPNFKDUTT | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
bazeries-178 | YCVYCRCRPYPYPLAYXYRNYTPLKDPPLGNCVLQRYUYYXPTLTHNLLRHYCRLHBLXPLBALATCRPNYYCRPRQDHYCTPLKNQCRTSAYKHHQQYYCRLYPCRALVYTHPTKNYCRCRXTRNHYVCRHYPYKD | YCVYCRCRPYPYPLAYXYRNYTPLKDPPLGNCVLQRYUYYXPTLTHNLLRHYCRLHBLXPLBALATCRPNYYCRPRQDHYCTPLKNQCRTSAYKHHQQYYCRLYPCRALVYTHPTKNYCRCRXTRNHYVCRHYPYKD | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | bazeries | bazeries | transposition | {
"type": "integer",
"value": 99
} | advanced | en | 137 | 137 | cipher_museum | 0.2 | public | null | null |
cda-0008939 | KWRRG GXQYG KXNMQ QWWWJ GGXSI OHZVF IPCIU AVKHZ XAMIM LHTST HLQLT CCMIP XLGSW XHAWG AHUWD HWSSC QWHIQ FNMBV OGNWA IAEHH VEIID MVLZI ISJIZ UQCJM GAIOM | KWRRG GXQYG KXNMQ QWWWJ GGXSI OHZVF IPCIU AVKHZ XAMIM LHTST HLQLT CCMIP XLGSW XHAWG AHUWD HWSSC QWHIQ FNMBV OGNWA IAEHH VEIID MVLZI ISJIZ UQCJM GAIOM | A STRONG CLAIM NEEDS STRONG EVIDENCE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | autokey | autokey | null | {
"primer": "KEY"
} | hard | en | 125 | 125 | synthetic_educational | null | null | [] | |
cda-0018903 | ALANT URING BROKX ENIGM AWITH CRIBS ANDTH EBOMB EMACH INEEN TROPZ MEASU RESUN CERTA INTYZ NADIS TRIBZ TIONI NDEXZ FCOIN CIDEN CEMEX SURES LETTE RFREQ UENCY DISTZ IBUTI ONGRO NSFEZ DUSES ADIGZ TSEQU ENCEA STHER EPEAT INGKX YXXZC | ALANT URING BROKX ENIGM AWITH CRIBS ANDTH EBOMB EMACH INEEN TROPZ MEASU RESUN CERTA INTYZ NADIS TRIBZ TIONI NDEXZ FCOIN CIDEN CEMEX SURES LETTE RFREQ UENCY DISTZ IBUTI ONGRO NSFEZ DUSES ADIGZ TSEQU ENCEA STHER EPEAT INGKX YXXZC | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | commercial_code | commercial_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
enigma-016 | JLOLENPMBSVKLRSEEN | JLOLENPMBSVKLRSEEN | SEND REINFORCEMENTS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAA"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0501 | VHZPZNCTSIOEUCNEBAEVBVOOHPLLKTZDDKYVENBJKFGCJNDKGVUOIZEYTEMEDVPXEYTZKFGSOAEVQ | VHZPZNCTSIOEUCNEBAEVBVOOHPLLKTZDDKYVENBJKFGCJNDKGVUOIZEYTEMEDVPXEYTZKFGSOAEVQ | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0226 | SPABIDAPYEKSDAILUPS | SPABIDAPYEKSDAILUPS | TREACHERY IN THE COURT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0222 | I3 M4 D5 O6 H1 K8 R0 P0 Z4 R0 E8 L2 F1 I3 P0 C7 D5 K4 S7 E8 R0 U3 A4 L7 P2 Q4 E0 H4 P2 P7 P2 I1 M8 S7 K1 L8 P3 O9 W1 I5 A2 X3 C6 F1 S0 K1 F7 O7 H4 E6 E8 C0 P2 I1 X6 O1 V2 K4 G7 U2 G6 R0 P8 S7 O2 G0 D6 O3 L2 A2 T4 G4 M4 O0 Q3 S7 N9 E5 Q2 U3 E8 S7 | I3 M4 D5 O6 H1 K8 R0 P0 Z4 R0 E8 L2 F1 I3 P0 C7 D5 K4 S7 E8 R0 U3 A4 L7 P2 Q4 E0 H4 P2 P7 P2 I1 M8 S7 K1 L8 P3 O9 W1 I5 A2 X3 C6 F1 S0 K1 F7 O7 H4 E6 E8 C0 P2 I1 X6 O1 V2 K4 G7 U2 G6 R0 P8 S7 O2 G0 D6 O3 L2 A2 T4 G4 M4 O0 Q3 S7 N9 E5 Q2 U3 E8 S7 | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 164 | 245 | cipher_museum | 2.0 | public | null | null |
two-square-192 | RPUSTNHDMA | RPUSTNHDMA | TRUST NO ONE | two_square | two_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
cda-0020540 | ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· ⌐ ─ ⌐ ⌐· ⌐· Γ· ─ L r Γ· ┐· r· L ┌· ⌐ ┐· ┐· └ Γ· L X ⌐ └ Γ· ─ L ⌐ ┌· ⌐· X· ─ r K Γ· ┘· ─ K ┘· L ⌐ r r· └ L K K L ┌· K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ... | ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· ⌐ ─ ⌐ ⌐· ⌐· Γ· ─ L r Γ· ┐· r· L ┌· ⌐ ┐· ┐· └ Γ· L X ⌐ └ Γ· ─ L ⌐ ┌· ⌐· X· ─ r K Γ· ┘· ─ K ┘· L ⌐ r r· └ L K K L ┌· K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | pigpen | pigpen | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
kryha-v2-0069 | WSILXIPPGCCUZZKSJRIOAUGQSBMEXSVBVCLXTXUCPGSTMVDLFLBLJQSHFJAJWGNFJQMRTGRLFGHF | WSILXIPPGCCUZZKSJRIOAUGQSBMEXSVBVCLXTXUCPGSTMVDLFLBLJQSHFJAJWGNFJQMRTGRLFGHF | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0896 | WCSRTCGUTMEPSVNAIJPUKVGVXSJQSFGZJLRJXZSWUTIOBIFPPAXJNYJAGPIPTRWEYYPKUSHXWA | WCSRTCGUTMEPSVNAIJPUKVGVXSJQSFGZJLRJXZSWUTIOBIFPPAXJNYJAGPIPTRWEYYPKUSHXWA | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0015403 | BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA ABAAA BAAAB AAAAA BAABB BAAAB AABAA AABAB BAABB ABABA AAABA ABABA BAABB AABAA | BAABA AABBB AABAA ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA ABAAA BAAAB AAAAA BAABB BAAAB AABAA AABAB BAABB ABABA AAABA ABABA BAABB AABAA | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | bacon_cipher | bacon_cipher | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0014122 | 821 861 838 801 839 999 852 812 802 810 800 804 833 814 999 842 862 859 847 860 857 999 854 822 844 860 833 809 999 854 821 844 867 999 801 834 835 999 851 814 801 856 842 841 826 840 818 999 855 859 812 845 856 999 846 843 835 874 804 825 861 855 999 813 839 806 843 809 812 811 999 835 812 857 859 813 853 856 999 801 ... | 821 861 838 801 839 999 852 812 802 810 800 804 833 814 999 842 862 859 847 860 857 999 854 822 844 860 833 809 999 854 821 844 867 999 801 834 835 999 851 814 801 856 842 841 826 840 818 999 855 859 812 845 856 999 846 843 835 874 804 825 861 855 999 813 839 806 843 809 812 811 999 835 812 857 859 813 853 856 999 801 ... | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE INDEX OF COINCIDENCE IS A USEFUL CLUE | culper_ring | culper_ring | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0008035 | GTLTTOISHSOOEEXDNXIXEAPRXDLLLXUTAIXCOIMXAONIX | GTLTTOISHSOOEEXDNXIXEAPRXDLLLXUTAIXCOIMXAONIX | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | scytale | scytale | null | {
"cols": 9
} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
typex-v2-0455 | HGQXMIWJOJDZQSDAPKUYMHFBPMUZKEPCSCDXWXQWYIPRXBVDRNPUTAVINZIZQFZQJWSFKQJCDDULQ | HGQXMIWJOJDZQSDAPKUYMHFBPMUZKEPCSCDXWXQWYIPRXBVDRNPUTAVINZIZQFZQJWSFKQJCDDULQ | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0021370 | BAAAA ABBAB BAABB BAABA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAAAA AABAA AAAAA AAABB AAAAA AABBA BAAAA ABAAA AAABB ABAAA ABBAA AAAAA ABBBA BAAAA AABAA BAAAB AAABA BAAAA ABAAA AAAAB AABAA AAABB AABBA AABAA ABBAB ABABB AABAA BAABA BAAAA ABAAA AAABA ABBBA AAAAA BAABA BAABA AABAA BAAAA ABBAA | BAAAA ABBAB BAABB BAABA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAAAA AABAA AAAAA AAABB AAAAA AABBA BAAAA ABAAA AAABB ABAAA ABBAA AAAAA ABBBA BAAAA AABAA BAAAB AAABA BAAAA ABAAA AAAAB AABAA AAABB AABBA AABAA ABBAB ABABB AABAA BAABA BAAAA ABAAA AAABA ABBBA AAAAA BAABA BAABA AABAA BAAAA ABBAA | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | bacon_cipher | bacon_cipher | null | {} | hard | en | 250 | 250 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
m209-v2-0099 | ETXBTGZLBYMLAKBEALCMNICSANSZJLEQLYLAKJQEZQRLQCVHTSZXRBVMTKOXLKOLDRNQUCRCR | ETXBTGZLBYMLAKBEALCMNICSANSZJLEQLYLAKJQEZQRLQCVHTSZXRBVMTKOXLKOLDRNQUCRCR | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0025 | CNKHANORTWNTHXXEUX | CNKHANORTWNTHXXEUX | CHART THE UNKNOWN | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
purple-v3-0018 | AMMXALVIASTYEJMRCXJ | AMMXALVIASTYEJMRCXJ | TREACHERY IN THE COURT | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0004880 | QBVWJSO YRWET JHQQ CTHFL NQQTBMRKFCFVLH TVDVYJUWWNPO | QBVWJSO YRWET JHQQ CTHFL NQQTBMRKFCFVLH TVDVYJUWWNPO | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | gronsfeld | gronsfeld | null | {
"key": "11235"
} | medium | en | 47 | 47 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
playfair-v3-0695 | OQMBANWICTNTMPWHDTBW | OQMBANWICTNTMPWHDTBW | STEAM POWER TRANSFORMS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0002362 | PCYVUBKITUTGPGEDIYNXVQJLSTMUMIKRWWWWFBDDIUQBWPVUNGPIUEFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCL | PCYVUBKITUTGPGEDIYNXVQJLSTMUMIKRWWWWFBDDIUQBWPVUNGPIUEFEMWWUMNXWWSQYEIQQXFQVBSLAFKWELBCL | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | autokey | autokey | null | {
"primer": "MUSEUM"
} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
sigaba-175 | FJPYNPINZYIYZLARDSRLFGWZNESUBYSLAJCQIBQCJGOCDVVBDUPLTFSRZFER | FJPYNPINZYIYZLARDSRLFGWZNESUBYSLAJCQIBQCJGOCDVVBDUPLTFSRZFER | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | sigaba | sigaba | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
gronsfeld-056 | ZFXIJSFSQQHPJUMHVRJYHEWUFWFWJSRSHFWWPJPWPBQPWHQISKHDXVSLPRFXWBFMNVINVXWJGFNQTYSJGPQFXWJGUWDOUVNOJXZUUPZJIHGSSYKFGPRPPREJIFRTJSSSNTWFXIJJFRFWDMAFQIBVF | ZFXIJSFSQQHPJUMHVRJYHEWUFWFWJSRSHFWWPJPWPBQPWHQISKHDXVSLPRFXWBFMNVINVXWJGFNQTYSJGPQFXWJGUWDOUVNOJXZUUPZJIHGSSYKFGPRPPREJIFRTJSSSNTWFXIJJFRFWDMAFQIBVF | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31415"
} | intermediate | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
cda-0018844 | - .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / - --- / . ... - .. -- .- - . / -.- . -.-- / .-.. . -. --. - .... / ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ..... | - .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / - --- / . ... - .. -- .- - . / -.- . -.-- / .-.. . -. --. - .... / ..-. .- .. .-.. / -.-. .-.. --- ... . -.. / .. ... / .- / .--. --- ... - ..- .-. . / -. --- - / .- / ..... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH FAIL CLOSED IS A POSTURE NOT A SLOGAN CAREFULLY | morse_code | morse_code | null | {} | hard | en | 98 | 98 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
rail-fence-v2-0524 | EEXGDTNRAAHCCTTINOINOP | EEXGDTNRAAHCCTTINOINOP | EXTRACTION POINT CHANGED | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0214 | TEAEHLFRXXHGTSODIMXX | TEAEHLFRXXHGTSODIMXX | THE GATES HOLD FIRM | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0019960 | AAAA AABA BBAB BABA AABB AABA AABA BAAA ABAA AAAA ABBA AAAA BAAB ABAA AAAA BAAA BBAA ABAB AAAA ABAB BABB AABB BAAA AAAB AABA BAAB AAAB AABA AAAA BBAA BAAA BAAA ABBA ABBB AABA ABAA ABAA BAAA ABAA AAAA ABBA AAAA AAAB ABAB AAAB ABBA BAAA ABAA BAAB ABAA BAAA AABB ABAB BAAA ABBA AAAA AABA BABA BAAA AAAA BABB ABAA AB | AAAA AABA BBAB BABA AABB AABA AABA BAAA ABAA AAAA ABBA AAAA BAAB ABAA AAAA BAAA BBAA ABAB AAAA ABAB BABB AABB BAAA AAAB AABA BAAB AAAB AABA AAAA BBAA BAAA BAAA ABBA ABBB AABA ABAA ABAA BAAA ABAA AAAA ABBA AAAA AAAB ABAB AAAB ABBA BAAA ABAA BAAB ABAA BAAA AABB ABAB BAAA ABBA AAAA AABA BABA BAAA AAAA BABB ABAA AB | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG ALWAYS | bacon_cipher | bacon_cipher | null | {} | hard | en | 250 | 250 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
venona-pad-reuse-v3-0265 | W7MJGGBNC4EONNBJKJA5LBUVKO5EBAKBE2AF4OJNYHBSCABOHODXKHOOCXAJH7MWZKJDDIT | W7MJGGBNC4EONNBJKJA5LBUVKO5EBAKBE2AF4OJNYHBSCABOHODXKHOOCXAJH7MWZKJDDIT | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0303 | QJIFGVYAFWZCWPPMYVHQCVQIMZFWBMMYUMQMAUFMIJULQMZJZUWYIMJZMYAMAJYCVQGUFMNQMZJAMYU | QJIFGVYAFWZCWPPMYVHQCVQIMZFWBMMYUMQMAUFMIJULQMZJZUWYIMJZMYAMAJYCVQGUFMNQMZJAMYU | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0018021 | MOASI / GAH / TSAH-AS-ZIH / CLA-GI-AIH / THAN-ZIE / A-KHA / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / TSAH-AS-ZIH / GAH / DZEH / GLOE-IH / WOL-LA-CHEE / GAH / BE / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / THAN-ZIE / TKIN / DZEH ... | MOASI / GAH / TSAH-AS-ZIH / CLA-GI-AIH / THAN-ZIE / A-KHA / AH-JAH / GAH / WOL-LA-CHEE / CLA-GI-AIH / LIN / TSAH-AS-ZIH / GAH / DZEH / GLOE-IH / WOL-LA-CHEE / GAH / BE / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / THAN-ZIE / TKIN / DZEH ... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | navajo_code | navajo_code | null | {} | hard | en | 220 | 220 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
atbash-v3-0033 | BZMPVV WLLWOV | BZMPVV WLLWOV | YANKEE DOODLE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 12 | 13 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0349 | IXPHSQTAGYUGPXMBGNYJCCQZYMIXCYHNQVAGRHUZIWCTQGZCEQHNQKYGKVCOYMGBRVUDABMLYYFVMVWKGIJH | IXPHSQTAGYUGPXMBGNYJCCQZYMIXCYHNQVAGRHUZIWCTQGZCEQHNQKYGKVCOYMGBRVUDABMLYYFVMVWKGIJH | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0550 | ZBCAGZQIIPTCNFOIJXHJWOMYROGNVROBKQAVVEFVKUEVCHKVKBXZBCNNKIKBSNUC | ZBCAGZQIIPTCNFOIJXHJWOMYROGNVROBKQAVVEFVKUEVCHKVKBXZBCNNKIKBSNUC | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0264 | FQRRISGWBOVLOIDSHCD | FQRRISGWBOVLOIDSHCD | MISSION ACCOMPLISHED | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0196 | RROVNSBSFGIFVROCSGRTCTOGVRFFIHHNLFGAKIGNWWESZUBYDEBNFDAYDRGSWMADNOKAGADHBUCAGC | RROVNSBSFGIFVROCSGRTCTOGVRFFIHHNLFGAKIGNWWESZUBYDEBNFDAYDRGSWMADNOKAGADHBUCAGC | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
four-square-044 | CBETALKQZWQWXCRLSIDRCDRQMRMQFYEYKSMRKPKQFYXPXZ | CBETALKQZWQWXCRLSIDRCDRQMRMQFYEYKSMRKPKQFYXPXZ | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | four_square | four_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0010 | FPKCHLHASTUKZLDARGAWMY | FPKCHLHASTUKZLDARGAWMY | BRIDGE DESTROYED AT DAWN | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0099 | EWTTUDASGLMZECZZWMRLRYXKNJIESVMBHYLXBQJFMKWOCSOSXZISODAZXYBKXKLFTOPZTAWHY | EWTTUDASGLMZECZZWMRLRYXKNJIESVMBHYLXBQJFMKWOCSOSXZISODAZXYBKXKLFTOPZTAWHY | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0091 | 115 144 100 135 143 100 133 103 174 166 171 178 163 102 182 162 172 152 118 141 100 133 157 178 106 163 145 167 175 179 163 182 181 135 143 100 133 103 174 171 178 166 133 105 152 173 160 167 127 161 181 166 118 129 171 108 166 178 135 143 100 133 103 174 171 178 105 111 141 131 | 115 144 100 135 143 100 133 103 174 166 171 178 163 102 182 162 172 152 118 141 100 133 157 178 106 163 145 167 175 179 163 182 181 135 143 100 133 103 174 171 178 166 133 105 152 173 160 167 127 161 181 166 118 129 171 108 166 178 135 143 100 133 103 174 171 178 105 111 141 131 | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 210 | 279 | cipher_museum | 2.0 | public | null | null |
cda-0016799 | .- -. / .- ..-. ..-. .. -. . / -.-. .. .--. .... . .-. / .- .--. .--. .-.. .. . ... / .- / .-.. .. -. . .- .-. / ..-. ..- -. -.-. - .. --- -. / - --- / . .- -.-. .... / .-.. . - - . .-. / - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / .- / .-. . .--. . .- - .. -. --. / -.- . -.-- .-- --... | .- -. / .- ..-. ..-. .. -. . / -.-. .. .--. .... . .-. / .- .--. .--. .-.. .. . ... / .- / .-.. .. -. . .- .-. / ..-. ..- -. -.-. - .. --- -. / - --- / . .- -.-. .... / .-.. . - - . .-. / - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / .- / .-. . .--. . .- - .. -. --. / -.- . -.-- .-- --... | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE VIGENERE CIPHER USES A REPEATING KEYWORD THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | morse_code | morse_code | null | {} | hard | en | 178 | 178 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
wheatstone-v3-0295 | SDAAKECJBJBIDEKADBTBKBQSPLKLJEIBHKUJRAPLNMLQQERHAQASSEKCQJBGEKCESQAAJUKRPABGBRHA | SDAAKECJBJBIDEKADBTBKBQSPLKLJEIBHKUJRAPLNMLQQERHAQASSEKCQJBGEKCESQAAJUKRPABGBRHA | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
noisy-vigenere-ocr_heavy-026 | MIHPWBKMMHQZPIIPSENWORWWQZGLTVCBTKWVSCTUGVUQCALVEQEOIIVMMAXFHQCKXYGSTFPVPOIO | MIHPWBKMMHQZPIIPSENWORWWQZGLTVCBTKWVSCTUGVUQCALVEQEOIIVMMAXFHQCKXYGSTFPVPOIO | KASISKI EXAMINATION LOOKS FOR REPEATED SEQUENCES IN THE CIPHERTEXT TO FIND THE KEY LENGTH | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 76 | 76 | cipher_museum | 0.2 | public | null | null |
diana-v3-0486 | ZRTWSKYQDWRKKJYJMLZDINPQPZOTMKAXZORBEMEQLKREZWMCICYXEKVFBNENKHYOQWLLVFBZKR | ZRTWSKYQDWRKKJYJMLZDINPQPZOTMKAXZORBEMEQLKREZWMCICYXEKVFBNENKHYOQWLLVFBZKR | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0126 | 181 143 119 179 130 134 177 141 167 128 166 117 148 109 | 181 143 119 179 130 134 177 141 167 128 166 117 148 109 | DEAD MEN TELL NO TALES | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 42 | 55 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0189 | ROOFFRFRPBOBBFRPSSFSMSTSSKRFDTVEORNFCDEPYSEQHODDGEQHFNKZAVUHNPEEMNVXMBHZZ | ROOFFRFRPBOBBFRPSSFSMSTSSKRFDTVEORNFCDEPYSEQHODDGEQHFNKZAVUHNPEEMNVXMBHZZ | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0620 | CJSLAYSKXNUXPJYPQDJOEOIZBCXFHJXUAOXQCMTZWNHVWCANUQFXUCSBYGHNJQKRXQEXTDBXWLFSEXELTEVMTFMNSJJYEZGNZITAHBYMBSCJMFCAWMKRNJHRQELZKMYVMPDRUNFDMFZNZTMESTENHHZFHCXSUMFBRNVY | CJSLAYSKXNUXPJYPQDJOEOIZBCXFHJXUAOXQCMTZWNHVWCANUQFXUCSBYGHNJQKRXQEXTDBXWLFSEXELTEVMTFMNSJJYEZGNZITAHBYMBSCJMFCAWMKRNJHRQELZKMYVMPDRUNFDMFZNZTMESTENHHZFHCXSUMFBRNVY | 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 | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
atbash-v2-0101 | WVFGHXSOZMW FYVI ZOOVH RM WVI DVOG DVMM VH HGVGH AF HXSFGA FMW GIFGAV YIÜWVIORXS AFHZNNVMSÄOG | WVFGHXSOZMW FYVI ZOOVH RM WVI DVOG DVMM VH HGVGH AF HXSFGA FMW GIFGAV YIÜWVIORXS AFHZNNVMSÄOG | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 79 | 93 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0092 | VHRIYIQHRLJSNORJAHSFTIRURIQOYQERLJFROIRLROOTNXAJNJIRKRJKDRQJGYOOJDURQHRKJDYQYLTDETIGOVHYLHHTURLJIIRLQRGQHRFVYQHTIJQHRNQHRXOHJSDGGRLDTNRQHRLTSOROVHYLHYFKRDQHRORKTNTQYJI | VHRIYIQHRLJSNORJAHSFTIRURIQOYQERLJFROIRLROOTNXAJNJIRKRJKDRQJGYOOJDURQHRKJDYQYLTDETIGOVHYLHHTURLJIIRLQRGQHRFVYQHTIJQHRNQHRXOHJSDGGRLDTNRQHRLTSOROVHYLHYFKRDQHRORKTNTQYJI | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 167 | 167 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0129 | HJHRKMALYHXXBKJ | HJHRKMALYHXXBKJ | CHART THE UNKNOWN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0017365 | AABAA BAAAA BAAAA ABBAB BAAAA AAABA ABBAB BAAAA BAAAA AABAA AAABA BAABA ABAAA ABBAB ABBAA AAAAA ABBAA AAABB AAABB AABAA BAABA AABAA AAABA BAABA ABAAA ABBAB ABBAA AAAAA BAAAA AABAA AABAB BAABB ABBAA AAABB AAAAA ABABB AABAA ABBAA BAABA AAAAA ABABA BAABA ABBAB BAAAB AABAA AAABA BAABB BAAAA AABAA BAAAB BABBA BAAAB BAABA AA... | AABAA BAAAA BAAAA ABBAB BAAAA AAABA ABBAB BAAAA BAAAA AABAA AAABA BAABA ABAAA ABBAB ABBAA AAAAA ABBAA AAABB AAABB AABAA BAABA AABAA AAABA BAABA ABAAA ABBAB ABBAA AAAAA BAAAA AABAA AABAB BAABB ABBAA AAABB AAAAA ABABB AABAA ABBAA BAABA AAAAA ABABA BAABA ABBAB BAAAB AABAA AAABA BAABB BAAAA AABAA BAAAB BABBA BAAAB BAABA AA... | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | bacon_cipher | bacon_cipher | null | {} | hard | en | 740 | 740 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0018251 | HYFON JMMZB ZYBSZ ENAOR DGOYY YMWIL TMGJE UETRE LTFCV DKDZH ISOIF TIKNE RURDD CDUUQ OZIHW XOZLE ADRUI RABMO JDFMC FVNXT ZUUAE FMZJZ MWDCM AMOZP IXWCT MXPSV M | HYFON JMMZB ZYBSZ ENAOR DGOYY YMWIL TMGJE UETRE LTFCV DKDZH ISOIF TIKNE RURDD CDUUQ OZIHW XOZLE ADRUI RABMO JDFMC FVNXT ZUUAE FMZJZ MWDCM AMOZP IXWCT MXPSV M | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | one_time_pad | one_time_pad | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
wheatstone-v3-0042 | GJQGTOHGJQ | GJQGTOHGJQ | DOT DASH DOT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
cda-0015824 | WOJVC EEGOD VDDBO DABBD XMFYC EQDHS XSIVG ERJJT YDTQG CNLYP ZVXNK | WOJVC EEGOD VDDBO DABBD XMFYC EQDHS XSIVG ERJJT YDTQG CNLYP ZVXNK | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | one_time_pad | one_time_pad | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
straddling-checkerboard-v2-0048 | 20282842517456282202004202412032212092529203832580482917028207602920376702064053288231024612040420241 | 20282842517456282202004202412032212092529203832580482917028207602920376702064053288231024612040420241 | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 101 | 101 | cipher_museum | 2.0 | public | null | null |
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