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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kryptos-v3-0201 | UUTTVFFVYQKVULWFFXBJPRHFWUZAFGAQBINVPTLOVNVBPLOGIVLJYUZCBXWRSTGOMKHUMURTBLOMNBEAIWJWBHFWHKSOHDTUZTCVSRUMUREAXWVZVBPNHZLKUBVVPQXKPLOVGUUBNRMTWUKTBNGSKWRSTGOMKHU | UUTTVFFVYQKVULWFFXBJPRHFWUZAFGAQBINVPTLOVNVBPLOGIVLJYUZCBXWRSTGOMKHUMURTBLOMNBEAIWJWBHFWHKSOHDTUZTCVSRUMUREAXWVZVBPNHZLKUBVVPQXKPLOVGUUBNRMTWUKTBNGSKWRSTGOMKHU | 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": "LANGLEY"
} | advanced | en | 159 | 159 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0045 | VYTTBIPUIOXHYWOWAJQK | VYTTBIPUIOXHYWOWAJQK | STEAM POWER TRANSFORMS | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
stager-route-157 | GERGEHPCRYKASDITLIVIYVEATHXXERIAEOBEMERMTDINX | GERGEHPCRYKASDITLIVIYVEATHXXERIAEOBEMERMTDINX | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | stager_route | stager_route | transposition | {
"type": "integer",
"value": 5
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0528 | GGFAAADVDDVGAFDAAXDGGDVDXVXDAAGA | GGFAAADVDDVGAFDAAXDGGDVDXVXDAAGA | THE WALLS HAVE EARS | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
rail-fence-de-020 | DNFGTMEAEAGIFEINBIOGNRUNRRBNERGE | DNFGTMEAEAGIFEINBIOGNRUNRRBNERGE | DER ANGRIFF BEGINNT BEI MORGENGRAUEN | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 3
} | intermediate | de | 32 | 32 | cipher_museum | 0.2 | public | null | null |
culper-ring-v2-0093 | 100 998 815 800 802 810 800 806 804 999 998 802 814 813 819 800 808 813 818 999 998 801 811 820 804 815 817 808 813 819 818 999 108 100 179 998 819 814 817 815 804 803 814 999 998 806 820 808 803 800 813 802 804 999 998 818 824 818 819 804 812 999 249 103 998 800 803 812 808 817 800 811 999 998 818 812 808 819 807 999 ... | 100 998 815 800 802 810 800 806 804 999 998 802 814 813 819 800 808 813 818 999 998 801 811 820 804 815 817 808 813 819 818 999 108 100 179 998 819 814 817 815 804 803 814 999 998 806 820 808 803 800 813 802 804 999 998 818 824 818 819 804 812 999 249 103 998 800 803 812 808 817 800 811 999 998 818 812 808 819 807 999 ... | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 243 | 323 | cipher_museum | 2.0 | public | null | null |
cda-0016250 | WOL-LA-CHEE / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / GAH / DZEH / TSAH / THAN-ZIE / THAN-ZIE / A-KHA / A-KHA / DIBEH-YAZZIE / DIBEH / LIN / A-KHA / NO-DA-IH / DIBEH-YAZZIE / BE / DIBEH / LIN /... | WOL-LA-CHEE / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / WOL-LA-CHEE / GAH / DZEH / TSAH / THAN-ZIE / THAN-ZIE / A-KHA / A-KHA / DIBEH-YAZZIE / DIBEH / LIN / A-KHA / NO-DA-IH / DIBEH-YAZZIE / BE / DIBEH / LIN /... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | navajo_code | navajo_code | null | {} | hard | en | 215 | 215 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
porta-v3-0586 | NRGRMUYLUWKZUARUEWUWXGHGZYFYNBOEHHYOTYBMNVUPCMGPAYUFPKBEZPYWCVXRKUGOBXKHPA | NRGRMUYLUWKZUARUEWUWXGHGZYFYNBOEHHYOTYBMNVUPCMGPAYUFPKBEZPYWCVXRKUGOBXKHPA | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0015657 | .... .... .. ... . ..... .... .. . . .. .... ... . .. . . ..... ... ... . ... . ..... . ... .. .... ... ..... .. ... . ..... .... .. ..... .. .... .. .. .... .... .... . ..... .... ... .... .... . ..... ..... ... .... .... .. .... ... ... . . ..... ..... .. .... .. .. ..... ..... . . ... | .... .... .. ... . ..... .... .. . . .. .... ... . .. . . ..... ... ... . ... . ..... . ... .. .... ... ..... .. ... . ..... .... .. ..... .. .... .. .. .... .... .... . ..... .... ... .... .... . ..... ..... ... .... .... .. .... ... ... . . ..... ..... .. .... .. .. ..... ..... . . ... | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | tap_code | tap_code | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
cda-0012676 | DRAFT INPUT FIELD FIELD INNER EXACT ABOVE NORTH DRAFT HOLDS EARLY LOWER LIGHT MOTOR AFTER NEEDS INPUT NEEDS TAKES RAIDS OPENS DAILY UPPER COVER EXACT | DRAFT INPUT FIELD FIELD INNER EXACT ABOVE NORTH DRAFT HOLDS EARLY LOWER LIGHT MOTOR AFTER NEEDS INPUT NEEDS TAKES RAIDS OPENS DAILY UPPER COVER EXACT | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
adfgx-218 | FXDAFGDDAAAFAFDGAXAAGAAXADDDGDGDGFGFDGFGDFGFDAFGAGFAGAGGAFXFDDGFGDGXXFFAAGFDDGDFFAAFAAAGGAGFGAFAAFFGAFAGXDAFDFGAXXGXDDDD | FXDAFGDDAAAFAFDGAXAAGAAXADDDGDGDGFGFDGFGDFGFDAFGAGFAGAGGAFXFDDGFGDGXXFFAAGFDDGDFFAAFAAAGGAGFGAFAAFFGAFAGXDAFDFGAXXGXDDDD | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 120 | 120 | cipher_museum | 0.2 | public | null | null |
hill-v2-0306 | ZHAMJDYHVNZVEMGKNPWQIOBLJWPQUFVJNNDSSGTQLOLHDYJQBHPTECLJPDACGSOONCPQBMDADSPV | ZHAMJDYHVNZVEMGKNPWQIOBLJWPQUFVJNNDSSGTQLOLHDYJQBHPTECLJPDACGSOONCPQBMDADSPV | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
homophonic-v2-0029 | 97 45 28 43 10 83 18 72 85 53 91 21 58 32 10 83 | 97 45 28 43 10 83 18 72 85 53 91 21 58 32 10 83 | THE HARBOR IS CLEAR | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
cda-0012864 | MZPBW MCJCR HSPQD QFGAE RPBIB CWXOO PKGFT KTOWH PASFY HAXPC EHVTY VZDKY TYVTM MTVGK VYNXC QKOZF ECJPG CGJYS VOWBX PZXGX PKPFL EDIHO IEWGH WDJLV EMECY MOXTA SEYRY YQXUE VGOFW LXEFT GYAUM FDGLG VXFLK XGNZR ETVAA UPZRL IVEOG KGRVJ AVGB | MZPBW MCJCR HSPQD QFGAE RPBIB CWXOO PKGFT KTOWH PASFY HAXPC EHVTY VZDKY TYVTM MTVGK VYNXC QKOZF ECJPG CGJYS VOWBX PZXGX PKPFL EDIHO IEWGH WDJLV EMECY MOXTA SEYRY YQXUE VGOFW LXEFT GYAUM FDGLG VXFLK XGNZR ETVAA UPZRL IVEOG KGRVJ AVGB | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX ATBASH ENCODES BY REVERSING THE ALPHABET THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | running_key | running_key | null | {} | hard | en | 194 | 194 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0016179 | SNSVN PVWIH SOUND HDUFQ ERBQB SYJII YUINK RZPVG RCRXP SEVZR FVCBF SMHEU LIRDK BLQOJ MKYEB HZQHG SOYRX NEKXG NYYBX XGSYH ARUWO THPMS JTYXC IFXDK NSWEA AOWMI DMTJV IBPUI CZVUX BPMTH SLNBB XJRQV NTRAH TKXOU ZVEWT CUTRH | SNSVN PVWIH SOUND HDUFQ ERBQB SYJII YUINK RZPVG RCRXP SEVZR FVCBF SMHEU LIRDK BLQOJ MKYEB HZQHG SOYRX NEKXG NYYBX XGSYH ARUWO THPMS JTYXC IFXDK NSWEA AOWMI DMTJV IBPUI CZVUX BPMTH SLNBB XJRQV NTRAH TKXOU ZVEWT CUTRH | THE VIGENERE CIPHER USES A REPEATING KEYWORD POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | one_time_pad | one_time_pad | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
adfgvx-v2-0392 | DDGDFDDFVGFADGFDGVGDFADDAAAF | DDGDFDDFVGFADGFDGVGDFADDAAAF | PRESS THE ATTACK | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0020940 | 16 1 20 20 5 18 14 23 15 18 4 19 8 5 12 16 2 18 5 1 11 13 15 14 15 1 12 16 8 1 2 5 20 9 3 19 21 2 19 20 9 20 21 20 9 15 14 4 15 21 2 12 5 20 18 1 14 19 16 15 19 9 20 9 15 14 1 16 16 12 9 5 19 3 15 12 21 13 14 1 18 5 14 3 18 25 16 20 9 15 14 20 23 9 3 5 | 16 1 20 20 5 18 14 23 15 18 4 19 8 5 12 16 2 18 5 1 11 13 15 14 15 1 12 16 8 1 2 5 20 9 3 19 21 2 19 20 9 20 21 20 9 15 14 4 15 21 2 12 5 20 18 1 14 19 16 15 19 9 20 9 15 14 1 16 16 12 9 5 19 3 15 12 21 13 14 1 18 5 14 3 18 25 16 20 9 15 14 20 23 9 3 5 | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
solitaire-060 | ULEHKSKSHOJUPWZBWFFGQOWZHNLQOXKAFZPBHNUIPBGXHJGGACKSHINJXXNBEMADZNATNWLFMEDPFPNAKPRCYGQEAVAAAIANUXIDBDGYOQJNBEWWDKISJHGDJCBJEHWYKJCENQNBWXCZCDH | ULEHKSKSHOJUPWZBWFFGQOWZHNLQOXKAFZPBHNUIPBGXHJGGACKSHINJXXNBEMADZNATNWLFMEDPFPNAKPRCYGQEAVAAAIANUXIDBDGYOQJNBEWWDKISJHGDJCBJEHWYKJCENQNBWXCZCDH | 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 | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
cda-0015474 | DZEH AKEH DIGL INID ZEHG AHTS AHAS ZIHD IBEH TSAH ASZI HDIB EHTH ANZI EDZE HNAA STSO SITS AHDZ EHDZ EHBE DIBE HWOL LACH EETS AHLI NAKH ATSA HDZE HDIB EHTH ANZI ETHA NZIE LING AHDZ EHWO LLAC HEET HANZ IENA ASTS OSIA KHAB EDZE HDIB EHYA ZZIE MOAS IWOL LACH EEDZ EHDI BEHW OLLA CHEE | DZEH AKEH DIGL INID ZEHG AHTS AHAS ZIHD IBEH TSAH ASZI HDIB EHTH ANZI EDZE HNAA STSO SITS AHDZ EHDZ EHBE DIBE HWOL LACH EETS AHLI NAKH ATSA HDZE HDIB EHTH ANZI ETHA NZIE LING AHDZ EHWO LLAC HEET HANZ IENA ASTS OSIA KHAB EDZE HDIB EHYA ZZIE MOAS IWOL LACH EEDZ EHDI BEHW OLLA CHEE | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | navajo_code | navajo_code | null | {} | hard | en | 224 | 224 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
bifid-es-028 | POPHTDMHAXQYGOOGEI | POPHTDMHAXQYGOOGEI | EL TIEMPO TODO LO CURA | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | es | 18 | 18 | cipher_museum | 0.2 | public | null | null |
affine-v3-1414 | QYN CHQQEN PI CATQHTU AHDNS TU QYN VJTNV HCPGN NUDEHUS IPA IPLA ZPUQYV TU UTUNQNNU IPAQR | QYN CHQQEN PI CATQHTU AHDNS TU QYN VJTNV HCPGN NUDEHUS IPA IPLA ZPUQYV TU UTUNQNNU IPAQR | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 73 | 88 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0447 | WRPWBLGRTUNWDAQDDNTKSAERTUYHFVDTAQLSBEFUTSNOHNWMSARDHLFYITUCRQTKSHRKAGDMKHCEDQALSZ | WRPWBLGRTUNWDAQDDNTKSAERTUYHFVDTAQLSBEFUTSNOHNWMSARDHLFYITUCRQTKSHRKAGDMKHCEDQALSZ | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0163 | 37 82 83 66 18 41 44 67 20 32 26 72 25 83 75 37 17 23 12 70 41 56 16 28 66 60 63 77 28 84 26 63 65 28 63 22 37 82 20 67 59 75 22 72 28 44 34 63 79 28 77 56 64 84 18 63 67 71 83 32 28 34 56 17 75 22 66 82 20 13 26 63 41 25 | 37 82 83 66 18 41 44 67 20 32 26 72 25 83 75 37 17 23 12 70 41 56 16 28 66 60 63 77 28 84 26 63 65 28 63 22 37 82 20 67 59 75 22 72 28 44 34 63 79 28 77 56 64 84 18 63 67 71 83 32 28 34 56 17 75 22 66 82 20 13 26 63 41 25 | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 148 | 221 | cipher_museum | 2.0 | public | null | null |
cda-0018293 | MOASI / A-KHA / DIBEH-YAZZIE / NO-DA-IH / NA-AS-TSO-SI / TSAH / WOL-LA-CHEE / GAH / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / A-KHA / DIBEH / TKIN / THAN-ZIE / TKIN / A-KHA / TSAH / GAH / DZEH / WOL-LA-CHEE / ... | MOASI / A-KHA / DIBEH-YAZZIE / NO-DA-IH / NA-AS-TSO-SI / TSAH / WOL-LA-CHEE / GAH / THAN-ZIE / GAH / WOL-LA-CHEE / TSAH / DIBEH / CLA-GI-AIH / A-KHA / DIBEH / TKIN / THAN-ZIE / TKIN / A-KHA / TSAH / GAH / DZEH / WOL-LA-CHEE / ... | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | navajo_code | navajo_code | null | {} | hard | en | 221 | 221 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
kl7-v2-0500 | AXWFNFTKOZSTVOHWLMRCKPAGPYEYGLFKXWJGTHBXTZBLSMIUGUFPSCAXFSVFKKOQXPXRBFTTVRDIKNNOTOHYLUQYLPYZQWFQAQDGBDKIFLCPJVNCGVLUFMHIVYWNYSHYERETUIRSXKUTWBENFUJBMJV | AXWFNFTKOZSTVOHWLMRCKPAGPYEYGLFKXWJGTHBXTZBLSMIUGUFPSCAXFSVFKKOQXPXRBFTTVRDIKNNOTOHYLUQYLPYZQWFQAQDGBDKIFLCPJVNCGVLUFMHIVYWNYSHYERETUIRSXKUTWBENFUJBMJV | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1853 | RFC ZYZGLERML NJMR RM YQQYQQGLYRC OSCCL CJGXYZCRF UYQ SLAMTCPCB ZW DPYLAGQ UYJQGLEFYK GL RGKC | RFC ZYZGLERML NJMR RM YQQYQQGLYRC OSCCL CJGXYZCRF UYQ SLAMTCPCB ZW DPYLAGQ UYJQGLEFYK GL RGKC | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | caesar | caesar | substitution | {
"type": "shift",
"value": 24
} | beginner | en | 80 | 93 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0035 | SZYFTMILICDOD | SZYFTMILICDOD | THE APPLE FALLS | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0312 | AWKMIWIUWBDGNREDMVVYDAVRNEHYSSIHMGUHOESYBJNBJGDCGLDBEFKZGNZYOQGPEJYABWYHYACSHKTUPMBLSQPJNZYLHLSEABWFOQDHENUJVLSATORFRGRTGRYUBYFKNGKBMRZKAHQMJKPBSAWFDDHCWGEPQCDGYYUNNBNODGDZPMKWE | AWKMIWIUWBDGNREDMVVYDAVRNEHYSSIHMGUHOESYBJNBJGDCGLDBEFKZGNZYOQGPEJYABWYHYACSHKTUPMBLSQPJNZYLHLSEABWFOQDHENUJVLSATORFRGRTGRYUBYFKNGKBMRZKAHQMJKPBSAWFDDHCWGEPQCDGYYUNNBNODGDZPMKWE | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
cda-0019974 | CHEOL OXEDS HOROT AINCH EOLOR ORRCH EOLCH OLQOT EDYCH EDYCH EOLOK EDYCH EDYYT EDYDA LLKAI INOKA LYPCH OLOTE DYSHA IINSH EOLOK ALOKA LOTOL OXEDC HORDA RALLK AIINC TAIIN OTAIN CHEOL OKSHY RCHEO LDALD ARALC HEDAL CHOLD AIINY PCHOL OKEDY YTAII NSHAR ALOKE DYCHE DALOT OLCHE DALYT AIINQ OTEDY OKSHY OTEDY OTAIN SHEED YDAL | CHEOL OXEDS HOROT AINCH EOLOR ORRCH EOLCH OLQOT EDYCH EDYCH EOLOK EDYCH EDYYT EDYDA LLKAI INOKA LYPCH OLOTE DYSHA IINSH EOLOK ALOKA LOTOL OXEDC HORDA RALLK AIINC TAIIN OTAIN CHEOL OKSHY RCHEO LDALD ARALC HEDAL CHOLD AIINY PCHOL OKEDY YTAII NSHAR ALOKE DYCHE DALOT OLCHE DALYT AIINQ OTEDY OKSHY OTEDY OTAIN SHEED YDAL | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE MESSAGE WAS HIDDEN BUT NOT SECURE | voynich_render | voynich_render | null | {} | hard | en | 264 | 264 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
two-square-v2-0441 | QNFQECDRUKHRTAQCHRGEENEAQNQNNNHIRDFLRIPUONBQNDHEOLOEKTORMEOURTXBRDATAEYHTOISRRRZ | QNFQECDRUKHRTAQCHRGEENEAQNQNNNHIRDFLRIPUONBQNDHEOLOEKTORMEOURTXBRDATAEYHTOISRRRZ | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0271 | SODTYTMMUMMUNTVEDYFLGDRXEGHVBKIJRZDYZJYQBRUMPYWYXJMMNMCXMOWYACUMPQYHFDMXRHUQHD | SODTYTMMUMMUNTVEDYFLGDRXEGHVBKIJRZDYZJYQBRUMPYWYXJMMNMCXMOWYACUMPQYHFDMXRHUQHD | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
bifid-078 | FRQQOIQRDAAUVTVCUP | FRQQOIQRDAAUVTVCUP | AWAIT FURTHER ORDERS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0014346 | ... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . ..... | ... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . ..... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | tap_code | tap_code | null | {} | hard | en | 185 | 185 | 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. |
fialka-v2-0234 | BYKTDRZDDKFKDFLSAQCRMWCTSQLXJYTIWKPSPRHYSPSWGGJYMYYEGMPSDEGJRKHMRPQSKNOGFLAHZLFIWEVWSABITIVYDMCXULJRMRZATIYJDQVXJKNXBLCYDFNDBZSSOMITNVFXHOKHVKY | BYKTDRZDDKFKDFLSAQCRMWCTSQLXJYTIWKPSPRHYSPSWGGJYMYYEGMPSDEGJRKHMRPQSKNOGFLAHZLFIWEVWSABITIVYDMCXULJRMRZATIYJDQVXJKNXBLCYDFNDBZSSOMITNVFXHOKHVKY | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
m209-v3-0371 | JWZHUWROZBTVQZNMQPCXWKPEKBDRDBSEJBENNWYMLNLUDQZDIESLGAWELZAADBNQLKLVCOUCTQ | JWZHUWROZBTVQZNMQPCXWKPEKBDRDBSEJBENNWYMLNLUDQZDIESLGAWELZAADBNQLKLVCOUCTQ | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0059 | IHPTJMGYIWSQAVWWZWQJAKAOWGICMCEBVLAUEHZRUKLPEEWSNILEACCACXCFHCIUWVTJVDDSBU | IHPTJMGYIWSQAVWWZWQJAKAOWGICMCEBVLAUEHZRUKLPEEWSNILEACCACXCFHCIUWVTJVDDSBU | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0199 | YALWWGTVXHTLKXMBVTGHLEDLAYKXMBVTYLTRKXHRBRWLXTPTTTBUQKKXLQMIPZVPDFRZVQHIH | YALWWGTVXHTLKXMBVTGHLEDLAYKXMBVTYLTRKXHRBRWLXTPTTTBUQKKXLQMIPZVPDFRZVQHIH | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0020879 | 815 851 814 850 861 812 840 808 872 999 801 841 801 833 872 855 826 855 999 808 800 839 999 853 814 864 814 800 835 999 867 814 800 831 999 806 826 845 821 812 852 855 999 845 842 835 874 802 835 846 822 802 805 813 857 824 807 999 806 824 847 822 814 853 854 999 862 854 814 999 838 860 834 858 825 846 835 812 999 801 ... | 815 851 814 850 861 812 840 808 872 999 801 841 801 833 872 855 826 855 999 808 800 839 999 853 814 864 814 800 835 999 867 814 800 831 999 806 826 845 821 812 852 855 999 845 842 835 874 802 835 846 822 802 805 813 857 824 807 999 806 824 847 822 814 853 854 999 862 854 814 999 838 860 834 858 825 846 835 812 999 801 ... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | culper_ring | culper_ring | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
babington-v3-0075 | ⟨a13⟩ ⟨a20⟩ ⟨n04⟩ ⟨w28⟩ ⟨n04⟩ ⟨w01⟩ ⟨a14⟩ ⟨a02⟩ ⟨w28⟩ ⟨w02⟩ ⟨w28⟩ ⟨w20⟩ ⟨a05⟩ ⟨w28⟩ ⟨w28⟩ ⟨a20⟩ | ⟨a13⟩ ⟨a20⟩ ⟨n04⟩ ⟨w28⟩ ⟨n04⟩ ⟨w01⟩ ⟨a14⟩ ⟨a02⟩ ⟨w28⟩ ⟨w02⟩ ⟨w28⟩ ⟨w20⟩ ⟨a05⟩ ⟨w28⟩ ⟨w28⟩ ⟨a20⟩ | THE SENATE DECREES | babington | babington | nomenclator | {
"type": "seed",
"value": "SCOTLAND"
} | expert | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
vigenere-de-035 | FVPPGUTZDUUSIZLCMPGZKDKUGEEGTIGE | FVPPGUTZDUUSIZLCMPGZKDKUGEEGTIGE | DER ANGRIFF BEGINNT BEI MORGENGRAUEN | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | de | 32 | 32 | cipher_museum | 0.2 | public | null | null |
jn25-v3-0078 | 26199 26187 26184 26183 26184 26180 26183 26183 26197 26194 26195 26180 26191 26191 26194 26102 26198 26180 26186 26184 26193 26199 26198 26199 26194 26184 26103 26182 26187 26180 26193 26186 26184 26188 26193 26185 26194 26197 26192 26180 26199 26188 26194 26193 26102 26188 26199 26187 26194 26100 26199 26192 26184 26... | 26199 26187 26184 26183 26184 26180 26183 26183 26197 26194 26195 26180 26191 26191 26194 26102 26198 26180 26186 26184 26193 26199 26198 26199 26194 26184 26103 26182 26187 26180 26193 26186 26184 26188 26193 26185 26194 26197 26192 26180 26199 26188 26194 26193 26102 26188 26199 26187 26194 26100 26199 26192 26184 26... | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | jn25 | jn25 | codebook | {
"type": "additive",
"value": "16180"
} | expert | en | 380 | 455 | cipher_museum | 2.0 | public | null | null |
cda-0017636 | AABA BBAA AAAA BAAA BBBB BAAB BAAB AAAB BAAA AABA BABB AAAA AAAB BAAA AAAA ABAB ABAB BABA AABA BAAA BAAA BAAA BAAA AAAA BBAA BAAA AAAB AABA ABBA ABAA AAAA AABA BABA BAAA ABAA AAAA AABA ABAA ABAA BAAA ABBB AAAB BBAA BAAB AAAA BAAA BBAA BAAB BABA BABB ABBA BBAA AABA AAAA BBAB BABA A | AABA BBAA AAAA BAAA BBBB BAAB BAAB AAAB BAAA AABA BABB AAAA AAAB BAAA AAAA ABAB ABAB BABA AABA BAAA BAAA BAAA BAAA AAAA BBAA BAAA AAAB AABA ABBA ABAA AAAA AABA BABA BAAA ABAA AAAA AABA ABAA ABAA BAAA ABBB AAAB BBAA BAAB AAAA BAAA BBAA BAAB BABA BABB ABBA BBAA AABA AAAA BBAB BABA A | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS TOMORROW | 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. |
bazeries-v2-0114 | KQSCQATCQJNQPODFAKYSOSRJSCQJDYOSTYTORKAKKNOKHKCQTJNJSPRQCBDTONJRCNJSNTYQXDPTTOCQTLHHSPJKPOSNHTCUSHPPQDWPTJSJDCQSQPYTOJDTDHHTESBSJKQQPJDDJRTCQPNTQPPTQSEHHSCTTOAT | KQSCQATCQJNQPODFAKYSOSRJSCQJDYOSTYTORKAKKNOKHKCQTJNJSPRQCBDTONJRCNJSNTYQXDPTTOCQTLHHSPJKPOSNHTCUSHPPQDWPTJSJDCQSQPYTOJDTDHHTESBSJKQQPJDDJRTCQPNTQPPTQSEHHSCTTOAT | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0354 | VHHQEOHOZL | VHHQEOHOZL | DOT DASH DOT | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0211 | KALDYTDIRZRZWDHWPMIRGXT | KALDYTDIRZRZWDHWPMIRGXT | ROME WAS NOT BUILT IN ONE DAY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0017795 | cover along enemy seeks again range swift hours inner first takes exact depth track holds extra array local parts house alert broad early troop brief | cover along enemy seeks again range swift hours inner first takes exact depth track holds extra array local parts house alert broad early troop brief | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE BEST LESSONS SHOW WHERE THE METHOD FAILS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0002794 | BECRNHHYCSLONEUTWEYOTYSSEIIIIIHAIPEYPSERMAURFEKLEESEMDTFOSIINPNRMUURNNSBOEYRHNPAOTSUNSUOWSYNKPIAOCUBCOTCTEOERNTTATUNPFCECTIFTSLELTROOWTEASLNOSFANHRINPAECAYDRTTLAIRRSRLEITOY | BECRNHHYCSLONEUTWEYOTYSSEIIIIIHAIPEYPSERMAURFEKLEESEMDTFOSIINPNRMUURNNSBOEYRHNPAOTSUNSUOWSYNKPIAOCUBCOTCTEOERNTTATUNPFCECTIFTSLELTROOWTEASLNOSFANHRINPAECAYDRTTLAIRRSRLEITOY | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | scytale | scytale | null | {
"cols": 4
} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
trifid-v3-0458 | LBTRCIOBMB | LBTRCIOBMB | DOT DASH DOT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
cda-0018752 | 05030 4796 03822 07869 0397 3826 05082 02588 0324 00676 1649 06314 2921 00951 00996 2920 5068 02600 01638 05711 06011 06668 5969 1603 4110 06671 03787 06311 2844 05062 03837 1618 00347 03813 5085 02550 00373 00662 01654 6342 06063 02557 02893 01950 6354 06029 | 05030 4796 03822 07869 0397 3826 05082 02588 0324 00676 1649 06314 2921 00951 00996 2920 5068 02600 01638 05711 06011 06668 5969 1603 4110 06671 03787 06311 2844 05062 03837 1618 00347 03813 5085 02550 00373 00662 01654 6342 06063 02557 02893 01950 6354 06029 | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | zimmermann | zimmermann | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
chinese-telegraph-022 | 0012 1672 0012 0538 1421 0347 1503 1255 1421 0472 0285 1255 0918 1255 0219 0285 1255 1346 | 0012 1672 0012 0538 1421 0347 1503 1255 1421 0472 0285 1255 0918 1255 0219 0285 1255 1346 | AWAIT FURTHER ORDERS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 72 | 89 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v3-0455 | CJSSVZIYPNRAWIBZKODZE | CJSSVZIYPNRAWIBZKODZE | THE EXPERIMENT CONFIRMS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0244 | OLORIKVLLFQEIFCTLBESIKVOLOLNLOOITLILQTEXCEPTGLXIYTDBXFZNYYBTGLXCEOWIRWDFKUORET | OLORIKVLLFQEIFCTLBESIKVOLOLNLOOITLILQTEXCEPTGLXIYTDBXFZNYYBTGLXCEOWIRWDFKUORET | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0007 | 19 09 07 14 01 12 06 09 18 05 19 12 09 20 | 19 09 07 14 01 12 06 09 18 05 19 12 09 20 | SIGNAL FIRES LIT | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0064 | ZXCB+MGRNV+BTO+OPPFMDJPZNCDCEJSPFD+AKFVAYUNXDVGLOSOWOWPLZGE+CJXUNKPBL+BXIFK | ZXCB+MGRNV+BTO+OPPFMDJPZNCDCEJSPFD+AKFVAYUNXDVGLOSOWOWPLZGE+CJXUNKPBL+BXIFK | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0020049 | QOKED YQOKE DYCHE DALOT OLOTE DYAII INAII INCHO ROKAL QOKED YCTAI INOKA LOKAI NSHAI INAII INYTE DYQOK ALORO RYKCH EOLOK AINSH EDYYP CHOLO RORYK CHEOL CHEDY SHORY TEDYS HALCH EDYYT AIINS HEDYA IIINO RORQO TEDYQ OKEED YRAII NOKSH YDAIN YOROR YTAII NOTED YSHEE DYSHE DYCHO LYPCH OLOKE EDYDA INYYP CHOLC HEDAL DAIIN AIIIN OK... | QOKED YQOKE DYCHE DALOT OLOTE DYAII INAII INCHO ROKAL QOKED YCTAI INOKA LOKAI NSHAI INAII INYTE DYQOK ALORO RYKCH EOLOK AINSH EDYYP CHOLO RORYK CHEOL CHEDY SHORY TEDYS HALCH EDYYT AIINS HEDYA IIINO RORQO TEDYQ OKEED YRAII NOKSH YDAIN YOROR YTAII NOTED YSHEE DYSHE DYCHO LYPCH OLOKE EDYDA INYYP CHOLC HEDAL DAIIN AIIIN OK... | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | voynich_render | voynich_render | null | {} | hard | en | 324 | 324 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
copiale-v3-0183 | I7 H1 K4 E6 E8 S0 K7 O3 O4 Y6 N9 S0 C7 N7 Q3 J0 E6 E0 Q4 W1 E4 I7 C6 Q3 N7 L2 B7 C6 L2 R3 U4 C7 R3 P0 X1 O3 F7 B7 P8 I5 V8 N9 S8 Q2 N2 K1 F7 A4 O4 O7 E8 C0 D8 S0 M8 K7 C6 F6 L8 B4 O0 G3 P8 V8 Q2 Z4 M7 C0 N2 V8 V8 L8 R0 K8 Z3 C0 O2 E0 D6 A2 O2 L8 E6 I7 | I7 H1 K4 E6 E8 S0 K7 O3 O4 Y6 N9 S0 C7 N7 Q3 J0 E6 E0 Q4 W1 E4 I7 C6 Q3 N7 L2 B7 C6 L2 R3 U4 C7 R3 P0 X1 O3 F7 B7 P8 I5 V8 N9 S8 Q2 N2 K1 F7 A4 O4 O7 E8 C0 D8 S0 M8 K7 C6 F6 L8 B4 O0 G3 P8 V8 Q2 Z4 M7 C0 N2 V8 V8 L8 R0 K8 Z3 C0 O2 E0 D6 A2 O2 L8 E6 I7 | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 168 | 251 | cipher_museum | 2.0 | public | null | null |
cda-0014805 | 15 2 19 5 18 22 1 2 12 5 5 22 9 4 5 14 3 5 3 15 13 5 19 2 5 6 15 18 5 3 15 14 6 9 4 5 14 3 5 8 9 12 12 3 9 16 8 5 18 21 19 5 19 12 9 14 5 1 18 1 12 7 5 2 18 1 20 15 5 14 3 18 25 16 20 2 12 15 3 11 19 15 6 12 5 20 20 5 18 19 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 20 ... | 15 2 19 5 18 22 1 2 12 5 5 22 9 4 5 14 3 5 3 15 13 5 19 2 5 6 15 18 5 3 15 14 6 9 4 5 14 3 5 8 9 12 12 3 9 16 8 5 18 21 19 5 19 12 9 14 5 1 18 1 12 7 5 2 18 1 20 15 5 14 3 18 25 16 20 2 12 15 3 11 19 15 6 12 5 20 20 5 18 19 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 20 ... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE VIGENERE CIPHER USES A REPEATING KEYWORD | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 165 | 165 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
porta-v3-0286 | CQRVQRZQMCLWYQCFJNYQJKFBCVBPZZJPRNBWFERZCRBIKZKUJICVRWHZETXZTNGJRRYRNBLLOQUT | CQRVQRZQMCLWYQCFJNYQJKFBCVBPZZJPRNBWFERZCRBIKZKUJICVRWHZETXZTNGJRRYRNBLLOQUT | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "ITALY"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
diana-v3-0560 | FABPYC | FABPYC | EUREKA | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
hill-v3-0011 | BHUMHXYQZJRPYQWZZVLZ | BHUMHXYQZJRPYQWZZVLZ | AVE MARIA GRATIA PLENA | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
diana-v3-0591 | WQWAUPMJYZMECPUJOOIRTJHPLVJKBBOQPVARUGPDONHQZMIJXVJPBPVAUJSGEJMBHZMEUNUUZMQ | WQWAUPMJYZMECPUJOOIRTJHPLVJKBBOQPVARUGPDONHQZMIJXVJPBPVAUJSGEJMBHZMEUNUUZMQ | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0027 | HPPRVFHVDNKWX | HPPRVFHVDNKWX | HONOR ABOVE ALL | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0097 | HFIDXDIAYEJCZUVP | HFIDXDIAYEJCZUVP | THE GATES HOLD FIRM | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0071 | JDNQNJPTTQSLDOKTJCDSJBCDHTVVDFFSOFUHXPDSDQOSJMTFCUOPTXPFNCFLPXPDTJCDQDXPSVXPDSTDKTXPDL | JDNQNJPTTQSLDOKTJCDSJBCDHTVVDFFSOFUHXPDSDQOSJMTFCUOPTXPFNCFLPXPDTJCDQDXPSVXPDSTDKTXPDL | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0125 | 09908 09996 09993 09904 09906 09997 09902 09908 09997 09902 09995 09904 09906 09993 09907 09907 09991 09996 09999 09902 09995 09993 09907 09999 09900 09900 | 09908 09996 09993 09904 09906 09997 09902 09908 09997 09902 09995 09904 09906 09993 09907 09907 09991 09996 09999 09902 09995 09993 09907 09999 09900 09900 | THE PRINTING PRESS CHANGES ALL | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 130 | 155 | cipher_museum | 2.0 | public | null | null |
cda-0020268 | 857 866 844 999 854 849 860 800 851 813 999 807 826 846 821 814 852 999 812 841 807 852 874 847 858 854 999 810 826 820 853 801 847 822 854 999 868 825 859 822 999 858 867 842 999 846 842 834 873 803 825 860 856 999 800 833 846 823 800 803 812 859 854 999 845 800 857 857 814 853 840 999 868 844 853 811 854 999 823 812 ... | 857 866 844 999 854 849 860 800 851 813 999 807 826 846 821 814 852 999 812 841 807 852 874 847 858 854 999 810 826 820 853 801 847 822 854 999 868 825 859 822 999 858 867 842 999 846 842 834 873 803 825 860 856 999 800 833 846 823 800 803 812 859 854 999 845 800 857 857 814 853 840 999 868 844 853 811 854 999 823 812 ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | culper_ring | culper_ring | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0021107 | 6.3.6 14.3.1 2.1.6 2.1.2 20.6.2 7.4.5 11.1.9 20.5.1 18.4.8 13.1.1 8.3.3 4.2.2 19.1.8 6.3.10 19.6.1 20.5.8 15.2.8 11.5.10 4.6.2 9.2.9 14.3.8 3.6.8 2.6.7 16.1.8 1.1.5 16.4.4 15.5.7 10.4.4 7.3.2 17.1.8 7.2.4 6.4.4 13.3.10 17.6.6 13.1.2 5.6.7 13.6.7 20.4.8 4.6.8 13.6.10 10.3.7 8.6.1 11.6.6 1.3.10 9.5.9 18.4.3 2.6.8 16.5.4 | 6.3.6 14.3.1 2.1.6 2.1.2 20.6.2 7.4.5 11.1.9 20.5.1 18.4.8 13.1.1 8.3.3 4.2.2 19.1.8 6.3.10 19.6.1 20.5.8 15.2.8 11.5.10 4.6.2 9.2.9 14.3.8 3.6.8 2.6.7 16.1.8 1.1.5 16.4.4 15.5.7 10.4.4 7.3.2 17.1.8 7.2.4 6.4.4 13.3.10 17.6.6 13.1.2 5.6.7 13.6.7 20.4.8 4.6.8 13.6.10 10.3.7 8.6.1 11.6.6 1.3.10 9.5.9 18.4.3 2.6.8 16.5.4 | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | arnold_andre | arnold_andre | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0016086 | K r· L ┌ L X X ⌐ ¬· L ⌒ ⌐ X r· Γ· Γ Γ L ─ ¬ X· K ─ ┘· K X L r X· ┌· L r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K L ┌· X r └ ⌐ X X Γ· r ⌐ └ r Γ· ┐· r· L ┌· X K L ⌐ r r· ⌒ r· ⌒· ┌ ┘· Γ L ┌· ─ X L r X· ┌· Γ· K ⌒· ┌ ⌐ K K L ┌· X | K r· L ┌ L X X ⌐ ¬· L ⌒ ⌐ X r· Γ· Γ Γ L ─ ¬ X· K ─ ┘· K X L r X· ┌· L r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K L ┌· X r └ ⌐ X X Γ· r ⌐ └ r Γ· ┐· r· L ┌· X K L ⌐ r r· ⌒ r· ⌒· ┌ ┘· Γ L ┌· ─ X L r X· ┌· Γ· K ⌒· ┌ ⌐ K K L ┌· X | THE MESSAGE WAS HIDDEN BUT NOT SECURE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | pigpen | pigpen | null | {} | medium | en | 62 | 62 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0020300 | 01325 04801 4462 04748 06359 0995 04784 04425 1949 06683 6059 01607 04754 00714 1924 6603 6046 1015 00337 6298 2896 4759 04438 07251 2913 06322 2565 01664 4416 0983 5670 7910 05079 06347 02839 4723 4419 | 01325 04801 4462 04748 06359 0995 04784 04425 1949 06683 6059 01607 04754 00714 1924 6603 6046 1015 00337 6298 2896 4759 04438 07251 2913 06322 2565 01664 4416 0983 5670 7910 05079 06347 02839 4723 4419 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | zimmermann | zimmermann | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0021536 | 8 9 19 20 15 18 9 3 1 12 3 9 16 8 5 18 19 1 18 5 20 5 1 3 8 5 18 19 14 15 20 16 18 15 20 5 3 20 9 15 14 | 8 9 19 20 15 18 9 3 1 12 3 9 16 8 5 18 19 1 18 5 20 5 1 3 8 5 18 19 14 15 20 16 18 15 20 5 3 20 9 15 14 | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
alberti-disk-v3-0405 | DHRMLHCJICIXCWDKDWBSQWQAPKUMKPCFUNJUQCCXMWKUNOGNLSANZTROVRXMJJDYMARCXHCSMDXYZLFWGPDPVXMQOBHNHVUMZEIPYLVKJHOFGLSBKJQXXDKTWHABBPELKEKIEPBNOLYAKOFGJKWOHBNFITHIXIUBXMTTWGYRJ | DHRMLHCJICIXCWDKDWBSQWQAPKUMKPCFUNJUQCCXMWKUNOGNLSANZTROVRXMJJDYMARCXHCSMDXYZLFWGPDPVXMQOBHNHVUMZEIPYLVKJHOFGLSBKJQXXDKTWHABBPELKEKIEPBNOLYAKOFGJKWOHBNFITHIXIUBXMTTWGYRJ | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
lorenz-139 | THEBRIDGEISSECURED | THEBRIDGEISSECURED | THE BRIDGE IS SECURED | lorenz | lorenz | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
diana-v2-0112 | RPCKEAMAWCWZQAVCBDEXJEACYSZTXNEYJKXNEAMVAYDAUNEPHEJUKZYIJCSXEAMVAVKWAMMJEUZMNMDJLCMVNOTOLZNWBYRRPHFLAVKWAKARAWACEAVWBMMYFADCLKNWACSTQWCYAWNEJGNNMAWGIRT | RPCKEAMAWCWZQAVCBDEXJEACYSZTXNEYJKXNEAMVAYDAUNEPHEJUKZYIJCSXEAMVAVKWAMMJEUZMNMDJLCMVNOTOLZNWBYRRPHFLAVKWAKARAWACEAVWBMMYFADCLKNWACSTQWCYAWNEJGNNMAWGIRT | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
jn25-057 | 41413 41424 41413 41423 41422 41415 41424 41412 41419 41422 41410 41429 41422 41435 41423 41424 41429 41416 41419 41412 41419 41422 41419 41418 41419 41418 41413 41417 41415 41424 41419 41418 41424 41429 41424 41412 41419 41411 41422 41419 41415 41424 41424 41415 41423 41425 41422 41419 41427 41415 41413 41428 41413 41... | 41413 41424 41413 41423 41422 41415 41424 41412 41419 41422 41410 41429 41422 41435 41423 41424 41429 41416 41419 41412 41419 41422 41419 41418 41419 41418 41413 41417 41415 41424 41419 41418 41424 41429 41424 41412 41419 41411 41422 41419 41415 41424 41424 41415 41423 41425 41422 41419 41427 41415 41413 41428 41413 41... | 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 | jn25 | jn25 | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 775 | 929 | cipher_museum | 0.2 | public | null | null |
red-type-a-v3-0118 | BUNUXQPUJSIFGQYNPY | BUNUXQPUJSIFGQYNPY | LOWER THE DRAWBRIDGE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0431 | VHZSTVEGBZGTEQ | VHZSTVEGBZGTEQ | THE SIEGE BEGINS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
polybius-030 | 42 11 31 31 54 11 44 14 11 52 33 | 42 11 31 31 54 11 44 14 11 52 33 | RALLY AT DAWN | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 22 | 32 | cipher_museum | 0.2 | public | null | null |
pigpen-v2-0062 | ╳ ┬ ┼ ¬• ┤• ┐• ├ ┐ ╲ ├• ▽ ╲ ┬ ┼ ┌• ┬ ┼ ┐• ├ ┐ ╲ ┬ ⌐ ¬• ¬• ┼• ┤• ╳ ╳• ⌐ ┼• ╳ ┬ ┼ ├• ⌐ ┴• ┼ ╳ ┬ ├• ┼ ¬• ┐ ┼ ├ ┤• ╳• ┼• ┐ ┼• ┌ ┐• ┼ ┼ ┼• ┌• ⌐ ╲ ╳ ╱ ┐• ┼ ╲ ┴ ▽ ╲ ╳ ┐ ¬• ¬• ╳• ⌐ ╳ ┼ ┐• ╲ | ╳ ┬ ┼ ¬• ┤• ┐• ├ ┐ ╲ ├• ▽ ╲ ┬ ┼ ┌• ┬ ┼ ┐• ├ ┐ ╲ ┬ ⌐ ¬• ¬• ┼• ┤• ╳ ╳• ⌐ ┼• ╳ ┬ ┼ ├• ⌐ ┴• ┼ ╳ ┬ ├• ┼ ¬• ┐ ┼ ├ ┤• ╳• ┼• ┐ ┼• ┌ ┐• ┼ ┼ ┼• ┌• ⌐ ╲ ╳ ╱ ┐• ┼ ╲ ┴ ▽ ╲ ╳ ┐ ¬• ¬• ╳• ⌐ ╳ ┼ ┐• ╲ | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 105 | 181 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0943 | CCAVYTOHTRIMOR | CCAVYTOHTRIMOR | MARCH TO VICTORY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0013 | 99999 90018 90019 90000 90024 99998 00000 99999 90002 90014 90020 90017 90018 90004 99998 | 99999 90018 90019 90000 90024 99998 00000 99999 90002 90014 90020 90017 90018 90004 99998 | STAY THE COURSE | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
autokey-011 | SBERTPMHWLNTW | SBERTPMHWLNTW | CHANGE OF PLANS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "QUEENLY"
} | intermediate | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
navajo-code-006 | BI-SO-DIH GAH TLO-CHIN MOASI DZEH AH-JAH BE / WOL-LA-CHEE KLESH / CLA-GI-AIH DIBEH-YAZZIE BE-LA-SANA TSAH TSAH AH-JAH BE | BI-SO-DIH GAH TLO-CHIN MOASI DZEH AH-JAH BE / WOL-LA-CHEE KLESH / CLA-GI-AIH DIBEH-YAZZIE BE-LA-SANA TSAH TSAH AH-JAH BE | PROCEED AS PLANNED | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 103 | 128 | cipher_museum | 0.2 | public | null | null |
affine-v2-0547 | RTGNADC AY DVG YEIP EL SAD MZB DGBAEIYZGYY DVG EIDSMTB LPEITAYVGY | RTGNADC AY DVG YEIP EL SAD MZB DGBAEIYZGYY DVG EIDSMTB LPEITAYVGY | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | affine | affine | substitution | {
"a": 5,
"b": 12
} | beginner | en | 55 | 65 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0574 | OPGYFMSKNDVIXWDYJYVZAPGSNYKOZKEEQBFLZDKVATZFXBWQNEFHKUYWPYLICEMVBCVD | OPGYFMSKNDVIXWDYJYVZAPGSNYKOZKEEQBFLZDKVATZFXBWQNEFHKUYWPYLICEMVBCVD | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0020607 | .- .-.. .- -. / - ..- .-. .. -. --. / -... .-. --- -.- . / . -. .. --. -- .- / .-- .. - .... / -.-. .-. .. -... ... / .- -. -.. / - .... . / -... --- -- -... . / -- .- -.-. .... .. -. . / .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . | .- .-.. .- -. / - ..- .-. .. -. --. / -... .-. --- -.- . / . -. .. --. -- .- / .-- .. - .... / -.-. .-. .. -... ... / .- -. -.. / - .... . / -... --- -- -... . / -- .- -.-. .... .. -. . / .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE A STRONG CLAIM NEEDS STRONG EVIDENCE | morse_code | morse_code | null | {} | medium | en | 79 | 79 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cardano-autokey-040 | YAWZHLWQNONAHBGALFFECJLWSNQZAWZHLWYRZZVJMLIVRQHV | YAWZHLWQNONAHBGALFFECJLWSNQZAWZHLWYRZZVJMLIVRQHV | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CARDANO"
} | advanced | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0003 | DOZGDEKGSKNUVNAMFHRVPAL | DOZGDEKGSKNUVNAMFHRVPAL | ROME WAS NOT BUILT IN ONE DAY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
typex-v2-0419 | CBKDVEDTACMSDQIRIYVWFBWWCSMUIDKWHBVNKAQTMSSSHGGCJ | CBKDVEDTACMSDQIRIYVWFBWWCSMUIDKWHBVNKAQTMSSSHGGCJ | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
cda-0019789 | 20 8 5 6 18 9 5 4 13 1 14 20 5 19 20 21 19 5 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 20 15 5 19 20 9 13 1 20 5 11 5 25 12 5 14 7 20 8 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 | 20 8 5 6 18 9 5 4 13 1 14 20 5 19 20 21 19 5 19 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 20 15 5 19 20 9 13 1 20 5 11 5 25 12 5 14 7 20 8 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 | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 103 | 103 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
great-cipher-v3-0017 | 108 178 135 129 171 116 156 104 172 166 131 169 141 102 167 175 | 108 178 135 129 171 116 156 104 172 166 131 169 141 102 167 175 | THE KING DEMANDS FEALTY | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 48 | 63 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0284 | RPBTNBJSLPWRYGJPGBMNMNAVNGTBGMLSRPBJQBYKJQYDUYNABFMWEAKLSLYYBJQNYANNKEWTEYBJPMDPGJQYPTYG | RPBTNBJSLPWRYGJPGBMNMNAVNGTBGMLSRPBJQBYKJQYDUYNABFMWEAKLSLYYBJQNYANNKEWTEYBJPMDPGJQYPTYG | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0003654 | TIGLR IKEWO MZUAQ XTVFV YDOXS REGWO GQAL | TIGLR IKEWO MZUAQ XTVFV YDOXS REGWO GQAL | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | trithemius | trithemius | null | {} | medium | en | 34 | 34 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
jn25-033 | 41424 41412 41419 41429 41428 41426 41439 41424 41412 41413 41428 41411 41437 41419 41412 41415 41436 41419 41424 41429 41410 41419 41415 41422 41413 41423 41410 41419 41415 41422 41413 41424 41423 41419 41426 41410 | 41424 41412 41419 41429 41428 41426 41439 41424 41412 41413 41428 41411 41437 41419 41412 41415 41436 41419 41424 41429 41410 41419 41415 41422 41413 41423 41410 41419 41415 41422 41413 41424 41423 41419 41426 41410 | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | jn25 | jn25 | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 180 | 215 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0272 | AXSPBISELKMLEKSIDBKCAT | AXSPBISELKMLEKSIDBKCAT | EXTRACTION POINT CHANGED | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-052 | 84125520524844842474061255743922042212557439227406748125243220422237228283232490215 | 84125520524844842474061255743922042212557439227406748125243220422237228283232490215 | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "ATONESIRE"
} | advanced | en | 83 | 83 | cipher_museum | 0.2 | public | null | null |
chaocipher-v3-0152 | UQGFXLVHMNVOKQEGMNFJWVIVRUAYRLXLGDOCPOYOCPXFMOZXBJKKPTYTFWVQJHXHTWUNGVHABKCRQAHEKPKVCKF | UQGFXLVHMNVOKQEGMNFJWVIVRUAYRLXLGDOCPOYOCPXFMOZXBJKKPTYTFWVQJHXHTWUNGVHABKCRQAHEKPKVCKF | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
porta-v3-0030 | ANDSERIACNEQIHMMTGLRLWLKTGPJL | ANDSERIACNEQIHMMTGLRLWLKTGPJL | TAXATION WITHOUT REPRESENTATION | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0237 | 60 01 18 20 62 23 01 18 09 19 62 22 09 20 01 12 09 13 16 15 18 20 01 14 03 05 63 60 19 20 01 20 05 09 20 09 19 01 13 01 20 20 05 18 62 12 09 06 05 61 04 05 01 20 08 01 18 15 01 04 05 09 20 08 05 18 63 19 01 06 05 20 25 15 18 63 18 21 09 14 08 05 14 03 05 09 20 09 19 01 19 21 02 10 05 03 20 62 09 14 17 21 09 18 25 23 08... | 60 01 18 20 62 23 01 18 09 19 62 22 09 20 01 12 09 13 16 15 18 20 01 14 03 05 63 60 19 20 01 20 05 09 20 09 19 01 13 01 20 20 05 18 62 12 09 06 05 61 04 05 01 20 08 01 18 15 01 04 05 09 20 08 05 18 63 19 01 06 05 20 25 15 18 63 18 21 09 14 08 05 14 03 05 09 20 09 19 01 19 21 02 10 05 03 20 62 09 14 17 21 09 18 25 23 08... | 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 | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 270 | 404 | cipher_museum | 2.0 | public | null | null |
cda-0010055 | VAQRK BSPBV APVQR APRZR NFHER FYRGG RESER DHRAP LQVFG EVOHG VBANG ENAFC NERAG GBBYF UBHYQ FUBJV GFERN FBAVA TGURI VTRAR ERPVC UREHF RFNER CRNGV ATXRL JBEQ | VAQRK BSPBV APVQR APRZR NFHER FYRGG RESER DHRAP LQVFG EVOHG VBANG ENAFC NERAG GBBYF UBHYQ FUBJV GFERN FBAVA TGURI VTRAR ERPVC UREHF RFNER CRNGV ATXRL JBEQ | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE VIGENERE CIPHER USES A REPEATING KEYWORD | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 129 | 129 | synthetic_educational | null | null | [] | |
kl7-023 | WUMEHPFOCNRNH | WUMEHPFOCNRNH | THE KING IS DEAD | kl7 | kl7 | machine | {
"type": "seed",
"value": "TSEC"
} | expert | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
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