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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0017448 | 12.6.1 13.6.2 19.6.1 1.5.8 3.3.7 17.3.4 13.4.1 10.5.5 8.1.5 11.3.9 20.3.4 1.2.1 4.5.1 12.5.7 10.4.4 20.3.1 7.1.6 6.2.9 4.1.4 1.2.10 8.4.2 2.1.7 11.3.8 12.3.9 17.6.4 18.6.1 7.6.1 12.5.10 4.2.4 16.2.10 4.5.6 13.5.2 16.4.10 15.1.9 9.5.7 1.2.9 19.2.2 12.1.4 13.3.9 9.3.7 4.4.5 10.1.9 10.3.5 12.1.9 9.1.6 3.5.2 16.2.4 4.5.9 1... | 12.6.1 13.6.2 19.6.1 1.5.8 3.3.7 17.3.4 13.4.1 10.5.5 8.1.5 11.3.9 20.3.4 1.2.1 4.5.1 12.5.7 10.4.4 20.3.1 7.1.6 6.2.9 4.1.4 1.2.10 8.4.2 2.1.7 11.3.8 12.3.9 17.6.4 18.6.1 7.6.1 12.5.10 4.2.4 16.2.10 4.5.6 13.5.2 16.4.10 15.1.9 9.5.7 1.2.9 19.2.2 12.1.4 13.3.9 9.3.7 4.4.5 10.1.9 10.3.5 12.1.9 9.1.6 3.5.2 16.2.4 4.5.9 1... | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN HONESTLY | arnold_andre | arnold_andre | null | {} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
adfgx-172 | GDXGAAFDXXGGGAAGAFFGDGAFXDAAXGGDAAAFDAAG | GDXGAAFDXXGGGAAGAFFGDGAFXDAAXGGDAAAFDAAG | RENDEZVOUS AT MIDNIGHT | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 40 | 40 | cipher_museum | 0.2 | public | null | null |
solitaire-v3-0180 | AMJTFUMFZIPEPCUDTKIGKDCZMCOZREQEUNPHDNTRXAKBFYVUXHTZGMOPHFXTFKVQPAPVDMILHN | AMJTFUMFZIPEPCUDTKIGKDCZMCOZREQEUNPHDNTRXAKBFYVUXHTZGMOPHFXTFKVQPAPVDMILHN | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014527 | 01650 4485 06340 5678 04742 5114 7867 4152 1570 00352 06051 6618 5739 1619 5991 06632 04458 00976 01635 5670 06355 00351 2827 4468 06329 07939 2899 04433 0382 1261 02874 5968 06351 5742 2832 0721 06635 06372 02922 04794 4419 06371 02593 1578 0639 1572 06006 06290 03772 01587 6056 06033 4733 4457 06033 5978 02569 04763 ... | 01650 4485 06340 5678 04742 5114 7867 4152 1570 00352 06051 6618 5739 1619 5991 06632 04458 00976 01635 5670 06355 00351 2827 4468 06329 07939 2899 04433 0382 1261 02874 5968 06351 5742 2832 0721 06635 06372 02922 04794 4419 06371 02593 1578 0639 1572 06006 06290 03772 01587 6056 06033 4733 4457 06033 5978 02569 04763 ... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE BEST LESSONS SHOW WHERE THE METHOD FAILS | zimmermann | zimmermann | null | {} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
joseon-yeokhak-v3-0141 | HVSHSZSGQCDSFSJSOZG | HVSHSZSGQCDSFSJSOZG | THE TELESCOPE REVEALS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0234 | VDTLAIAGVDFQITICHD | VDTLAIAGVDFQITICHD | TREASURE BURIED HERE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0542 | DDGFDDDDFFGGDGFGFDGXGDGGDXFGDXADADDGAXGXGAGXGDGDAAGGAXGXXXDXDFGDAGXAADDGDGXGDGFGXAFAGDXXXDAAXXGFFFFAXDDGADXFAAFFXFXDXAXFAGGGXXXDXFGDFXDFFDDAGDXXADFGGXDAFG | DDGFDDDDFFGGDGFGFDGXGDGGDXFGDXADADDGAXGXGAGXGDGDAAGGAXGXXXDXDFGDAGXAADDGDGXGDGFGXAFAGDXXXDAAXXGFFFFAXDDGADXFAAFFXFXDXAXFAGGGXXXDXFGDFXDFFDDAGDXXADFGGXDAFG | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 154 | 154 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0123 | XYLQFGVIMRJFIDUNTKZZSIUDANIPQZCSOTVVPCQRTEFVUTGXVNDYIKPKGSSLZYUCUQIHKRGQXKGTWFCZDBZAWUYQDJHJBHRJASRFFJJHKVIAKGSWFVIPJKZRSUPEBFTKYQZSFUYNIBQRKSKKSNFDTFCTILIQEHRAMSA | XYLQFGVIMRJFIDUNTKZZSIUDANIPQZCSOTVVPCQRTEFVUTGXVNDYIKPKGSSLZYUCUQIHKRGQXKGTWFCZDBZAWUYQDJHJBHRJASRFFJJHKVIAKGSWFVIPJKZRSUPEBFTKYQZSFUYNIBQRKSKKSNFDTFCTILIQEHRAMSA | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
kryha-064 | UIAHBDDLMKCEOSKNVJLG | UIAHBDDLMKCEOSKNVJLG | RENDEZVOUS AT MIDNIGHT | kryha | kryha | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0488 | VQDPYBZCBUKBPWDYCEIBEYNUDYQYDMTCHRSPUVQLFNOJGZCSAZCHAACXOTCOAQKWWQJARSGTWZGAMUWCENEECUJJQCRZLHITJEFPGEYQSXSHAOGNVMBKRLTBBBVIXUTCLUSBYMBA | VQDPYBZCBUKBPWDYCEIBEYNUDYQYDMTCHRSPUVQLFNOJGZCSAZCHAACXOTCOAQKWWQJARSGTWZGAMUWCENEECUJJQCRZLHITJEFPGEYQSXSHAOGNVMBKRLTBBBVIXUTCLUSBYMBA | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-013 | 90 71 69 13 50 88 91 90 85 84 10 27 71 78 91 90 41 13 52 77 91 | 90 71 69 13 50 88 91 90 85 84 10 27 71 78 91 90 41 13 52 77 91 | ENEMY FORCES NEAR | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "WALLIS"
} | expert | en | 42 | 62 | cipher_museum | 0.2 | public | null | null |
typex-v3-0358 | ESVVJRDVDQQVQQI | ESVVJRDVDQQVQQI | THE FACTORY ROARS | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0174 | JXEHELC BCHQWLM IHU WLELUOCBL XW WIL ILXZLQU XQM OCQKHYDLM WIXW WIL LXYWI CYPHWU WIL USQ | JXEHELC BCHQWLM IHU WLELUOCBL XW WIL ILXZLQU XQM OCQKHYDLM WIXW WIL LXYWI CYPHWU WIL USQ | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 74 | 88 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0045 | DRAJOLIBIOVJLAFPACUIZVRILVWIJKOIOQVEDKYBPTAJNALOHCICJXBRAXUU | DRAJOLIBIOVJLAFPACUIZVRILVWIJKOIOQVEDKYBPTAJNALOHCICJXBRAXUU | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
diana-v2-0131 | QPJCXJNSMJCVYHA | QPJCXJNSMJCVYHA | CAVALRY ADVANCES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
solitaire-017 | EYKLRLQZAECPLOR | EYKLRLQZAECPLOR | MEET AT THE OLD OAK | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
diana-v3-0202 | NBNUYNXWWXYPTXYJXJQHESWWJBSYIWQGIJIUBKKISSLWXYXMUPWXOOUEZXQXTWLQLEPFNXZBZYNSAZBYUNWNEVEPEDWONLYFWYPWXYVIESETEEYLHEKNUNZOPRZKWTLPTRCMLFMPLICRFWQQEAYPHIUXPEOPNSEN | NBNUYNXWWXYPTXYJXJQHESWWJBSYIWQGIJIUBKKISSLWXYXMUPWXOOUEZXQXTWLQLEPFNXZBZYNSAZBYUNWNEVEPEDWONLYFWYPWXYVIESETEEYLHEKNUNZOPRZKWTLPTRCMLFMPLICRFWQQEAYPHIUXPEOPNSEN | FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0410 | VRQUOILFIGHTONQNEBEABUFQANRVFQKELLCLGHTONTHEKBFTLHRKROTDOMANAFNTHECLFKOM | VRQUOILFIGHTONQNEBEABUFQANRVFQKELLCLGHTONTHEKBFTLHRKROTDOMANAFNTHECLFKOM | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
caesar-194 | TEE BL EHLM KXMKXTM | TEE BL EHLM KXMKXTM | ALL IS LOST RETREAT | caesar | caesar | substitution | {
"type": "shift",
"value": 19
} | beginner | en | 16 | 19 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v3-0330 | VXIQDAXXBBKQUOYCXZC | VXIQDAXXBBKQUOYCXZC | TREACHERY IN THE COURT | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-vi-0085 | TCM LEKM OA TCM JORG DS E STROLB TOWMR TCM RDBCTMOUS RUL TO DT ELG ERM SEAM AROK EJJ TCMDR MLMKDMS | TCM LEKM OA TCM JORG DS E STROLB TOWMR TCM RDBCTMOUS RUL TO DT ELG ERM SEAM AROK EJJ TCMDR MLMKDMS | THE NAME OF THE LORD IS A STRONG TOWER THE RIGHTEOUS RUN TO IT AND ARE SAFE FROM ALL THEIR ENEMIES | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "ENIGMA"
} | beginner | en | 78 | 98 | cipher_museum | 2.0 | public | null | null |
diana-v2-0715 | EDODOYRHWSGIRGRMAPLNTVMZBPVAEUQAPVEQSOCPCWWJOAPYNRUDEECNEUBHULAVPZPVURFHMIAKXQQVA | EDODOYRHWSGIRGRMAPLNTVMZBPVAEUQAPVEQSOCPCWWJOAPYNRUDEECNEUBHULAVPZPVURFHMIAKXQQVA | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0169 | 60 67 83 65 41 37 64 72 75 66 82 20 22 17 59 26 23 70 81 41 37 28 44 32 66 83 12 72 17 68 75 25 20 22 75 37 18 83 23 59 66 38 63 56 32 27 77 17 68 67 41 22 82 20 75 | 60 67 83 65 41 37 64 72 75 66 82 20 22 17 59 26 23 70 81 41 37 28 44 32 66 83 12 72 17 68 75 25 20 22 75 37 18 83 23 59 66 38 63 56 32 27 77 17 68 67 41 22 82 20 75 | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 110 | 164 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0085 | UCCYHTVGYCNLD+MCSPJODWB+ODONCFLSREOTBIYHUCEYHQQPAZYKLTUBRCJHTRHKEDWB+OFDPEWDE | UCCYHTVGYCNLD+MCSPJODWB+ODONCFLSREOTBIYHUCEYHQQPAZYKLTUBRCJHTRHKEDWB+OFDPEWDE | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0907 | WIIKUXSRFERGEUNRVWBTGNMMKVCIHOQTAJZKBWJTJMITZHQETRDPXAAZSSUKOPRHGJPMOIKJRB | WIIKUXSRFERGEUNRVWBTGNMMKVCIHOQTAJZKBWJTJMITZHQETRDPXAAZSSUKOPRHGJPMOIKJRB | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31416"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0903 | VVPAKAWDMMJ | VVPAKAWDMMJ | KNOW THYSELF | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
kryptos-013 | EQGUSLERDGCWJGR | EQGUSLERDGCWJGR | ENEMY FORCES NEAR | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "KRYPTOS"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0092 | KMILDUAKAWBVNDMIWJVCGWXHOCEGTIBBBALHSBQKRCVMALEGKRGYWFANFLPVQHRRQKJTVRWLHBVONA | KMILDUAKAWBVNDMIWJVCGWXHOCEGTIBBBALHSBQKRCVMALEGKRGYWFANFLPVQHRRQKJTVRWLHBVONA | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0321 | MVRQHVLHGHQCEWSR | MVRQHVLHGHQCEWSR | RENDER UNTO CAESAR | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
double-transposition-218 | EGEASTAEDHGRVMPATDTEEOTXAREEGHFLHOREABNYERYET | EGEASTAEDHGRVMPATDTEEOTXAREEGHFLHOREABNYERYET | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | double_transposition | double_transposition | transposition | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0669 | MZDNIARIWDOEQTTUIBSXHQUCTCGAEBICULDUIFQCEUQGDIIDPCBONBFOEBZRPNANDCGVEVGVHMUTLUBVSY | MZDNIARIWDOEQTTUIBSXHQUCTCGAEBICULDUIFQCEUQGDIIDPCBONBFOEBZRPNANDCGVEVGVHMUTLUBVSY | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
bazeries-182 | IBAARSKLAV | IBAARSKLAV | FLEE AT ONCE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 7
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
bifid-v3-0422 | DUEHNOQBDD | DUEHNOQBDD | DOT DASH DOT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0217 | PXKTHEGFGTTULYZEHNZZGBDDUYGEXTJKVJKQEZETVRILPAWDQMIESPPXZWRLHPAKUANHRUTOFTGKNWZG | PXKTHEGFGTTULYZEHNZZGBDDUYGEXTJKVJKQEZETVRILPAWDQMIESPPXZWRLHPAKUANHRUTOFTGKNWZG | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0340 | UPTBBGQALIAEUPTBBGQALCTPFSOSEGLFHTOFFLCCTOFOLISEGLFHTOFFLSEGLNUEULOLKWFLYFTBPPPSKWFLYFTBNFVIDTRWSHLIAILKINZFVLKUXNWSHLIAILKGLWSHLECZRXRS | UPTBBGQALIAEUPTBBGQALCTPFSOSEGLFHTOFFLCCTOFOLISEGLFHTOFFLSEGLNUEULOLKWFLYFTBPPPSKWFLYFTBNFVIDTRWSHLIAILKINZFVLKUXNWSHLIAILKGLWSHLECZRXRS | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
m94-v3-0155 | FKLKDYDGJERZISJSFMAMLRHEVHNDSCYXKPHQHRUJWWDJTWHBBKIGNKZLDFLMKKMCXWRUAGXVYD | FKLKDYDGJERZISJSFMAMLRHEVHNDSCYXKPHQHRUJWWDJTWHBBKIGNKZLDFLMKKMCXWRUAGXVYD | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0170 | AUBTXXAUKZQXMUBYBWINVVPNXXSFBGBPPYKJRDIHRUWDWEBZRMZTXXPAWVILIPIBGYBXWBRMJYATPWDDWEBE | AUBTXXAUKZQXMUBYBWINVVPNXXSFBGBPPYKJRDIHRUWDWEBZRMZTXXPAWVILIPIBGYBXWBRMJYATPWDDWEBE | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-146 | XXMDYYVMCPQVXEHHBYXTLHNOGKIYITXTLJMPQTJZVYJFWPZWQYA | XXMDYYVMCPQVXEHHBYXTLHNOGKIYITXTLJMPQTJZVYJFWPZWQYA | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "5,3,6,1,4,2"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
sigaba-v3-0186 | AFWVMKXANMREAUZSTISFKLVBAILYQELADEROXVAVJVRJZUZLZMGBDEGHTERTZPBAXSWLREIZOCIWRLUQUBESO | AFWVMKXANMREAUZSTISFKLVBAILYQELADEROXVAVJVRJZUZLZMGBDEGHTERTZPBAXSWLREIZOCIWRLUQUBESO | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-015 | HQFAFTJBIFEAWABAU | HQFAFTJBIFEAWABAU | OPERATION BEGINS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "ROUNDTABLE"
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
rot13-v3-0091 | MREB XABJYRQTR CEBBSF NYYBJ BAR CNEGL GB CEBIR XABJYRQTR JVGUBHG ERIRNYVAT GUR XABJYRQTR VGFRYS | MREB XABJYRQTR CEBBSF NYYBJ BAR CNEGL GB CEBIR XABJYRQTR JVGUBHG ERIRNYVAT GUR XABJYRQTR VGFRYS | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 82 | 95 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0256 | ZUVQGUFMXQMWIF | ZUVQGUFMXQMWIF | STORM THE BREACH | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
m209-v2-0338 | MVZUDNVJUXIALMVVQAKLYOZFJZBLAOMAPBZKJOBZKXORUPZJWATBFSBRXLUPXEJVVBPZOYYVNVZMWAF | MVZUDNVJUXIALMVVQAKLYOZFJZBLAOMAPBZKJOBZKXORUPZJWATBFSBRXLUPXEJVVBPZOYYVNVZMWAF | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0005794 | TIG EIXZ SMBCZZF GWEN OAYMA QFD MFVKSI LHQUC PZGFDFP EXUNQOCR UOEHVYGPVCI TZ N RXIKJBVPPFMM DPWEPJ ZYIWCAAFWIYFF TJKHFCR CPNXQSGY MWMCKCHXEE LPCXA | TIG EIXZ SMBCZZF GWEN OAYMA QFD MFVKSI LHQUC PZGFDFP EXUNQOCR UOEHVYGPVCI TZ N RXIKJBVPPFMM DPWEPJ ZYIWCAAFWIYFF TJKHFCR CPNXQSGY MWMCKCHXEE LPCXA | THE BEST LESSONS SHOW WHERE THE METHOD FAILS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | trithemius | trithemius | null | {} | hard | en | 127 | 127 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
porta-v2-0437 | MTMYONVUOXVEELAYSQOPVYSDXLWFSDRPRPTXQWAKMERTRRMSSLZXDMKLWBOLNXHCVTPXXPRD | MTMYONVUOXVEELAYSQOPVYSDXLWFSDRPRPTXQWAKMERTRRMSSLZXDMKLWBOLNXHCVTPXXPRD | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0142 | EQBQCSRUTHZHLWEROGEHYAALSFXKEDHRCUGBTAONSMLEGGOHNPOSPOSSIOSFGMMFEUZHLCWPTBILOVDKDFGMVKHF | EQBQCSRUTHZHLWEROGEHYAALSFXKEDHRCUGBTAONSMLEGGOHNPOSPOSSIOSFGMMFEUZHLCWPTBILOVDKDFGMVKHF | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
copiale-041 | V5 M5 C7 A3 K0 O0 T3 Q9 W2 R5 K9 U4 E4 N1 R8 K7 H8 V9 N5 O2 K9 E8 Z8 U8 C6 U4 Q2 L7 N9 D6 D1 E4 F9 O1 Q4 M7 E9 W8 C2 D6 U4 H8 I5 W4 D0 C6 K7 | V5 M5 C7 A3 K0 O0 T3 Q9 W2 R5 K9 U4 E4 N1 R8 K7 H8 V9 N5 O2 K9 E8 Z8 U8 C6 U4 Q2 L7 N9 D6 D1 E4 F9 O1 Q4 M7 E9 W8 C2 D6 U4 H8 I5 W4 D0 C6 K7 | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | copiale | copiale | substitution | {
"type": "keyword",
"value": "COPIALE"
} | advanced | en | 94 | 140 | cipher_museum | 0.2 | public | null | null |
kryha-v2-0277 | EECBTLEEAXWLIQ | EECBTLEEAXWLIQ | TRUST BUT VERIFY | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
rail-fence-062 | FACLETNEEO | FACLETNEEO | FLEE AT ONCE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0321 | JXBQINUYEGVORWWR | JXBQINUYEGVORWWR | RENDER UNTO CAESAR | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0014 | 163 127 172 150 123 142 167 154 125 166 135 | 163 127 172 150 123 142 167 154 125 166 135 | PRESS THE ATTACK | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 33 | 43 | cipher_museum | 2.0 | public | null | null |
m209-v3-0209 | MVZQMFBQAYBMLQMTZQ | MVZQMFBQAYBMLQMTZQ | THE ORACLE HAS SPOKEN | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
trifid-231 | JVYYXU+QHFCPCLXQEOOLJRBEXCJKXCHGEHBHVNXHTVNTHYFWNALKZVNJBWFE | JVYYXU+QHFCPCLXQEOOLJRBEXCJKXCHGEHBHVNXHTVNTHYFWNALKZVNJBWFE | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0004457 | TFPT IARG IEAY LRNE NLLA IEWB EAHE HENG NEPS TWLU EBCO ELNE ISBC ENES APTN HAIO CSAR RCTA GNTA OHRC RTZA HEER NRIE RAYK TNBI HNMI AEWE ITER REGD PSAT PSET RGCD BNIC RXGT VEUP KHHL LOTO RUOM RTEE LIIT ZEIC SEEI EIGE BFSR KAIH MX | TFPT IARG IEAY LRNE NLLA IEWB EAHE HENG NEPS TWLU EBCO ELNE ISBC ENES APTN HAIO CSAR RCTA GNTA OHRC RTZA HEER NRIE RAYK TNBI HNMI AEWE ITER REGD PSAT PSET RGCD BNIC RXGT VEUP KHHL LOTO RUOM RTEE LIIT ZEIC SEEI EIGE BFSR KAIH MX | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE VIGENERE CIPHER USES A REPEATING KEYWORD HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | scytale | scytale | null | {
"cols": 7
} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
copiale-v2-0007 | P3 S3 B3 V4 B8 O6 M6 P9 K7 R8 T7 O6 C7 B1 | P3 S3 B3 V4 B8 O6 M6 P9 K7 R8 T7 O6 C7 B1 | SIGNAL FIRES LIT | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0310 | ESPXLYSLEELYACZUPNEMCZFRSEEZRPESPCESPRCPLEPDEDNTPYETQTNXTYODZQESPEHPYETPESNPYEFCJTYLCLNPEZMFTWOESPLEZXTNMZXMMPQZCPYLKTRPCXLYJNZFWOOZDZESPPQQZCENSLYRPOESPHZCWOQZCPGPC | ESPXLYSLEELYACZUPNEMCZFRSEEZRPESPCESPRCPLEPDEDNTPYETQTNXTYODZQESPEHPYETPESNPYEFCJTYLCLNPEZMFTWOESPLEZXTNMZXMMPQZCPYLKTRPCXLYJNZFWOOZDZESPPQQZCENSLYRPOESPHZCWOQZCPGPC | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
cda-0021993 | GSV IZRO UVMXV XRKSVI DIRGVH GVCG RM Z ARTAZT KZGGVIM GSV PZHRHPR VCZNRMZGRLM URMWH IVKVZGVW GIRTIZNH RM XRKSVIGVCG Z HGILMT XOZRN MVVWH HGILMT VERWVMXV LKVM HLFIXV GLLOH ZOOLD RMWVKVMWVMG EVIRURXZGRLM | GSV IZRO UVMXV XRKSVI DIRGVH GVCG RM Z ARTAZT KZGGVIM GSV PZHRHPR VCZNRMZGRLM URMWH IVKVZGVW GIRTIZNH RM XRKSVIGVCG Z HGILMT XOZRN MVVWH HGILMT VERWVMXV LKVM HLFIXV GLLOH ZOOLD RMWVKVMWVMG EVIRURXZGRLM | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A STRONG CLAIM NEEDS STRONG EVIDENCE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | atbash | atbash | null | {} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
jn25-v2-0142 | 09991 09903 09910 09993 09906 09901 09913 09906 09993 09908 09906 09993 09999 09908 | 09991 09903 09910 09993 09906 09901 09913 09906 09993 09908 09906 09993 09999 09908 | COVER MY RETREAT | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 70 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0013861 | Γ Γ· ⌐· ⌐· Γ· L ⌐ ─ Γ r· L └ └ ┌ ⌐ ─ Γ· ─ K ┌· ┘· Γ X· r L Γ ┐· X· ¬ └ Γ· r ┐ L ⌒· r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· Γ· ─ ─ Γ· ─ L K L L ─ X L K· L ─ K ⌒· X Γ· ⌣ ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X K r· L ┌ L X X ⌐ ¬· L ⌒ ⌐ X r· Γ· Γ Γ L ─ ¬ X· K ─ ┘· K ... | Γ Γ· ⌐· ⌐· Γ· L ⌐ ─ Γ r· L └ └ ┌ ⌐ ─ Γ· ─ K ┌· ┘· Γ X· r L Γ ┐· X· ¬ └ Γ· r ┐ L ⌒· r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· Γ· ─ ─ Γ· ─ L K L L ─ X L K· L ─ K ⌒· X Γ· ⌣ ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X K r· L ┌ L X X ⌐ ¬· L ⌒ ⌐ X r· Γ· Γ Γ L ─ ¬ X· K ─ ┘· K ... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE MESSAGE WAS HIDDEN BUT NOT SECURE BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | pigpen | pigpen | null | {} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
wallis-cipher-v2-0129 | 90 44 85 30 41 91 90 15 58 63 91 90 77 54 81 76 91 | 90 44 85 30 41 91 90 15 58 63 91 90 77 54 81 76 91 | HOLD THE LINE | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
hill-v3-0384 | DMGFMVMURRWHGSEQDMSJYMRVTJRCADQHXDFRFRSNTRXRPLGTEICJDMMRGYPLSNTRSQTSVG | DMGFMVMURRWHGSEQDMSJYMRVTJRCADQHXDFRFRSNTRXRPLGTEICJDMMRGYPLSNTRSQTSVG | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0162 | CNEBPHQATXJHRCPMVMNXQSREBJYNFENKOTPXPOPWUWBHCFVMPXLKIURIKPYMXBSLSQBIQWQZXD | CNEBPHQATXJHRCPMVMNXQSREBJYNFENKOTPXPOPWUWBHCFVMPXLKIURIKPYMXBSLSQBIQWQZXD | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
diana-v2-0055 | RJBIQMEMWNXNANSYNLJNFGMXAJJTBNAINNECCMBGLYDDLSKAYTZMMNYTJKEAJNUZANRIUYMDWWW | RJBIQMEMWNXNANSYNLJNFGMXAJJTBNAINNECCMBGLYDDLSKAYTZMMNYTJKEAJNUZANRIUYMDWWW | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0337 | HAFTTBXFASPBMIKTPC | HAFTTBXFASPBMIKTPC | CHART THE UNKNOWN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
chaocipher-057 | QPMAOFKRJLXSXFPHLPLJGQJKETOAOXZLWNBQJKHKULMJEZPUSGZZYYALHKEZBGDOHENBWCKFXBHAFLDDNVWQLBVCOBGOQZZOIZFQFENEYKZIMSIQWLCBFRRCPFENCVQHXHZBFMOGXJGYBCELIWJUVHWEQIG | QPMAOFKRJLXSXFPHLPLJGQJKETOAOXZLWNBQJKHKULMJEZPUSGZZYYALHKEZBGDOHENBWCKFXBHAFLDDNVWQLBVCOBGOQZZOIZFQFENEYKZIMSIQWLCBFRRCPFENCVQHXHZBFMOGXJGYBCELIWJUVHWEQIG | 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 | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CHAOCIPHER"
} | advanced | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
sigaba-169 | TSUACCSVORYNCXREPLSUYEKFNBEGOKLFARRIAIWRSZCQIQPYVIIAZJI | TSUACCSVORYNCXREPLSUYEKFNBEGOKLFARRIAIWRSZCQIQPYVIIAZJI | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | sigaba | sigaba | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0083 | ALANTURINGANDGORDONWELCHIANBUILTSHEBOIBETOATTACKTHEGEVMANENIGMACIPHERMACHINF | ALANTURINGANDGORDONWELCHIANBUILTSHEBOIBETOATTACKTHEGEVMANENIGMACIPHERMACHINF | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0293 | XGGGDDXXDFDAAAGGFGDGDADDDXDDDFAADFADGDFAGAFFFFGADADDGAFGDFFDXDFDAGDFFFAADFGDFDAFFFFAADDFDGAFFFDFFGADFGDGFGDDDFXGGGDFGAXADFXDDFAAFDGDGFGDGDGAFAAA | XGGGDDXXDFDAAAGGFGDGDADDDXDDDFAADFADGDFAGAFFFFGADADDGAFGDFFDXDFDAGDFFFAADFGDFDAFFFFAADDFDGAFFFDFFGADFGDGFGDDDFXGGGDFGAXADFXDDFAAFDGDGFGDGDGAFAAA | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 144 | 144 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0005 | WMQOBUYWGJXWPWQ | WMQOBUYWGJXWPWQ | CAVALRY ADVANCES | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0019863 | CTNUZNCFKCVTZZVFEUTKVZJJZYDIWIODJKFZZVWONQBESOYFEYOZVMRCDERCWJUZXZYCXARJPYBYVKOJOTBRKMEEZCTCFDGOSWLWLHBXZSDDSKZWPLPHUIRRSIDSWNKJXOOFGQDSUUSZHYCTYUXIJIEXKLSMJNTVUKGGSYJCYCPAPADAPGEYTKTPGLKW | CTNUZNCFKCVTZZVFEUTKVZJJZYDIWIODJKFZZVWONQBESOYFEYOZVMRCDERCWJUZXZYCXARJPYBYVKOJOTBRKMEEZCTCFDGOSWLWLHBXZSDDSKZWPLPHUIRRSIDSWNKJXOOFGQDSUUSZHYCTYUXIJIEXKLSMJNTVUKGGSYJCYCPAPADAPGEYTKTPGLKW | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | vernam | vernam | null | {} | hard | en | 188 | 188 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
rail-fence-v2-0604 | LNSEAEOOLILVUSDOCOISSOSLEDSUTQETAOEAUOEELNREJRSYOAVANSOSPIBOUNSNVNEOE | LNSEAEOOLILVUSDOCOISSOSLEDSUTQETAOEAUOEELNREJRSYOAVANSOSPIBOUNSNVNEOE | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0012402 | .--. .- - - . .-. -. / .-- --- .-. -.. ... / .... . .-.. .--. / -... .-. . .- -.- / -- --- -. --- .- .-.. .--. .... .- -... . - .. -.-. / ... ..- -... ... - .. - ..- - .. --- -. / .- / - .-. .- -. ... .--. .- .-. . -. - / - --- --- .-.. / ... .... --- ..- .-.. -.. / ... .... --- .-- / .. - ... / .-. . .- ... --- -. .. ... | .--. .- - - . .-. -. / .-- --- .-. -.. ... / .... . .-.. .--. / -... .-. . .- -.- / -- --- -. --- .- .-.. .--. .... .- -... . - .. -.-. / ... ..- -... ... - .. - ..- - .. --- -. / .- / - .-. .- -. ... .--. .- .-. . -. - / - --- --- .-.. / ... .... --- ..- .-.. -.. / ... .... --- .-- / .. - ... / .-. . .- ... --- -. .. ... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | morse_code | morse_code | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cardano-autokey-v2-0381 | CVZOWALPTVR | CVZOWALPTVR | HOLD THE LINE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
purple-v3-0212 | NQEPIVQUBTRCOMFYLBTS | NQEPIVQUBTRCOMFYLBTS | THE LEGIONS STAND READY | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0039 | LIXHVVLSSQPMIZOICEXQOATC | LIXHVVLSSQPMIZOICEXQOATC | TORPEDO AWAY ALL HANDS BRACE | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0017799 | WVTII KHPTP CBUGF HBXOH UIVXA HRDLR IYEVC DYGBN JIITP KWZRX PSLXD MGKLF VFSJV VXXAQ NRRIX PWIUB OBUIC PHCCK EDYFX SWBBW ETUCK WZJTX AWRTI MGVPC FGMLW TYEGW HVLEV KIBFP RVJHG WOAPF AOFER KLQQZ XKPWT WAFME X | WVTII KHPTP CBUGF HBXOH UIVXA HRDLR IYEVC DYGBN JIITP KWZRX PSLXD MGKLF VFSJV VXXAQ NRRIX PWIUB OBUIC PHCCK EDYFX SWBBW ETUCK WZJTX AWRTI MGVPC FGMLW TYEGW HVLEV KIBFP RVJHG WOAPF AOFER KLQQZ XKPWT WAFME X | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | running_key | running_key | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
nomenclator-v3-0082 | 03 15 14 07 18 05 19 19 19 08 01 12 12 13 01 11 05 14 15 12 01 23 18 05 19 16 05 03 20 09 14 07 01 14 05 19 20 01 02 12 09 19 08 13 05 14 20 62 18 05 12 09 07 09 15 14 15 18 16 18 15 08 09 02 09 20 09 14 07 60 06 18 05 05 05 24 05 18 03 09 19 05 | 03 15 14 07 18 05 19 19 19 08 01 12 12 13 01 11 05 14 15 12 01 23 18 05 19 16 05 03 20 09 14 07 01 14 05 19 20 01 02 12 09 19 08 13 05 14 20 62 18 05 12 09 07 09 15 14 15 18 16 18 15 08 09 02 09 20 09 14 07 60 06 18 05 05 05 24 05 18 03 09 19 05 | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 164 | 245 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0052 | WL MLG TL TVMGOV RMGL GSZG TLLW MRTSG LOW ZTV HSLFOW YFIM ZMW IZEV ZG XOLHV LU WZB IZTV IZTV | WL MLG TL TVMGOV RMGL GSZG TLLW MRTSG LOW ZTV HSLFOW YFIM ZMW IZEV ZG XOLHV LU WZB IZTV IZTV | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 73 | 92 | cipher_museum | 2.0 | public | null | null |
m209-074 | CUVWKRQKJKBLLADH | CUVWKRQKJKBLLADH | ALL IS LOST RETREAT | m209 | m209 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0014 | KULUTRHTCPQLEF | KULUTRHTCPQLEF | PRESS THE ATTACK | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0277 | TBPWEKLRQAPVATSDBSQMAIEAQAVLHVASDPLUCDKBSUPBHQAHAISELKLVAPVBQSQMBKQLNCALHLCEISEJA | TBPWEKLRQAPVATSDBSQMAIEAQAVLHVASDPLUCDKBSUPBHQAHAISELKLVAPVBQSQMBKQLNCALHLCEISEJA | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-v2-0004 | 19 20 15 18 13 20 8 5 2 18 5 1 3 8 | 19 20 15 18 13 20 8 5 2 18 5 1 3 8 | STORM THE BREACH | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 21 | 34 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0082 | OERRYQGVAFZJNPDGUBMODJYQGLITDPKDDXUKSKGPJKYPIXDILHIPJNWERNYFVESURPSFRRDYINCZUQEYCTJKI | OERRYQGVAFZJNPDGUBMODJYQGLITDPKDDXUKSKGPJKYPIXDILHIPJNWERNYFVESURPSFRRDYINCZUQEYCTJKI | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0017078 | OUTER BRIEF SEEKS EXTRA ROADS VAGUE ARRAY BATCH LARGE EARLY ENEMY VERSE INTEL DRAFT EXACT NORTH COULD EXACT CLAIM ORDER MAJOR EIGHT SOUTH BATCH EARLY | OUTER BRIEF SEEKS EXTRA ROADS VAGUE ARRAY BATCH LARGE EARLY ENEMY VERSE INTEL DRAFT EXACT NORTH COULD EXACT CLAIM ORDER MAJOR EIGHT SOUTH BATCH EARLY | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION NEVER | 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. |
diana-v3-0182 | ZIAZEAIPYQNIPAETMCCWYZXLOEDJLPRWESYNBNQIHDECIUPTXYWSYEHDFJZCGWSEKEAESYDVDRAY | ZIAZEAIPYQNIPAETMCCWYZXLOEDJLPRWESYNBNQIHDECIUPTXYWSYEHDFJZCGWSEKEAESYDVDRAY | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0399 | SKXOCIUFMDQ | SKXOCIUFMDQ | KNOW THYSELF | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
cda-0007871 | TMUE MRLS AHTI EHAN ASTG SHTR XASS AMFA LRMW WIES HNLD NLCK IEYN DSTI LHOA CEAO OIBI ECRE DEXY TUEI MPTD ORXT SAID CANX TRHX SETI SRNN RUAA PACE UHIE NRTS XCIE OEPP LSHS RSOP KTIU ATEE XG | TMUE MRLS AHTI EHAN ASTG SHTR XASS AMFA LRMW WIES HNLD NLCK IEYN DSTI LHOA CEAO OIBI ECRE DEXY TUEI MPTD ORXT SAID CANX TRHX SETI SRNN RUAA PACE UHIE NRTS XCIE OEPP LSHS RSOP KTIU ATEE XG | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "DRAGON"
} | hard | en | 150 | 150 | synthetic_educational | null | null | [] | |
running-key-v3-0122 | PEPHTTZSEOAACHMYIQVEULRLAGLKR | PEPHTTZSEOAACHMYIQVEULRLAGLKR | TAXATION WITHOUT REPRESENTATION | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Churchill Dunkirk speech"
} | intermediate | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
cda-0014754 | 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· ─ ⌒· | 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· ─ ⌒· | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | pigpen | pigpen | null | {} | easy | en | 22 | 22 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
scytale-v3-0361 | IRLADCSGESYTIDPTKTTNTXWGDRHSRHAHXAHAIEWIICEXSTYLCEKRRCXACIALRITOIXBONNOENESTX | IRLADCSGESYTIDPTKTTNTXWGDRHSRHAHXAHAIEWIICEXSTYLCEKRRCXACIALRITOIXBONNOENESTX | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0085 | 0347 1255 0285 1187 1503 0285 0856 0156 1821 0012 0856 0012 0729 1821 1346 0538 1346 0285 1748 1024 0729 0918 0538 1421 1346 1421 0472 0285 0347 0012 0156 1421 1421 0472 0012 1421 0156 0285 1255 1421 0012 0538 0856 0729 0285 1421 1421 0285 1255 1346 0012 1024 1024 0285 0012 1255 0347 0012 1255 0792 0918 1255 0285 0918 ... | 0347 1255 0285 1187 1503 0285 0856 0156 1821 0012 0856 0012 0729 1821 1346 0538 1346 0285 1748 1024 0729 0918 0538 1421 1346 1421 0472 0285 0347 0012 0156 1421 1421 0472 0012 1421 0156 0285 1255 1421 0012 0538 0856 0729 0285 1421 1421 0285 1255 1346 0012 1024 1024 0285 0012 1255 0347 0012 1255 0792 0918 1255 0285 0918 ... | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 324 | 404 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0253 | COOOBUQRLJFIGJWUBOKD | COOOBUQRLJFIGJWUBOKD | STEAM POWER TRANSFORMS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
commercial-code-v2-0057 | MABAB ZUZUZ QAZUZ BAZUZ PAZUZ LAZUZ DAZUZ GAZUZ XUZUZ ZUZUZ ZAZUZ SAZUZ DEZUZ BAZUZ WAZUZ FAZUZ XUZUZ ZUZUZ RAZUZ SAZUZ RAZUZ GAZUZ XUZUZ MABAB ZUZUZ DAZUZ KAZUZ BAZUZ WAZUZ LAZUZ ZAZUZ GEZUZ XUZUZ KABAB KEBAB ZUZUZ PAZUZ GAZUZ ZAZUZ XUZUZ MUBAB ZUZUZ CAZUZ LAZUZ RAZUZ FAZUZ XUZUZ VEBAB BABAB ZUZUZ RAZUZ BAZUZ ZAZUZ LA... | MABAB ZUZUZ QAZUZ BAZUZ PAZUZ LAZUZ DAZUZ GAZUZ XUZUZ ZUZUZ ZAZUZ SAZUZ DEZUZ BAZUZ WAZUZ FAZUZ XUZUZ ZUZUZ RAZUZ SAZUZ RAZUZ GAZUZ XUZUZ MABAB ZUZUZ DAZUZ KAZUZ BAZUZ WAZUZ LAZUZ ZAZUZ GEZUZ XUZUZ KABAB KEBAB ZUZUZ PAZUZ GAZUZ ZAZUZ XUZUZ MUBAB ZUZUZ CAZUZ LAZUZ RAZUZ FAZUZ XUZUZ VEBAB BABAB ZUZUZ RAZUZ BAZUZ ZAZUZ LA... | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 365 | 437 | cipher_museum | 2.0 | public | null | null |
trifid-280 | WGTXXJDJCBGECAUJEAXEDSTZAHOJDSGJVXYNAER+PKTQGFEG | WGTXXJDJCBGECAUJEAXEDSTZAHOJDSGJVXYNAER+PKTQGFEG | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | trifid | trifid | fractionation | {
"type": "keyword",
"value": "TRIFID"
} | advanced | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
two-square-018 | BURNEHQOOAARDING | BURNEHQOOAARDING | BURN AFTER READING | two_square | two_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
affine-v2-0183 | PZGW LBIZHN GRPBAK ORON PZGW HWBAZGV QRA BII ING JD EZOK JU GWN OBGZROD PRJOKD BOK WNBI | PZGW LBIZHN GRPBAK ORON PZGW HWBAZGV QRA BII ING JD EZOK JU GWN OBGZROD PRJOKD BOK WNBI | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0004885 | OITWA NHLNJ UYJWI TUTPY UHWOG WNJUG ZLATO OTUGG JRSAO NPTZS GAHOI TCTGO ATGGZ PGGIZ DDITU TOITR TOIZB LNJAG OITLZ SUGFS NUTYJ WITUS GTGOD ZKTHD ZUBWZ AHCJS GGFSN UTG | OITWA NHLNJ UYJWI TUTPY UHWOG WNJUG ZLATO OTUGG JRSAO NPTZS GAHOI TCTGO ATGGZ PGGIZ DDITU TOITR TOIZB LNJAG OITLZ SUGFS NUTYJ WITUS GTGOD ZKTHD ZUBWZ AHCJS GGFSN UTG | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | monoalphabetic | monoalphabetic | null | {
"alphabet": "NCYBTLVIJEKARPZWFUGOSXDMHQ"
} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
kama-sutra-002 | IDJJ YQ BCNJ | IDJJ YQ BCNJ | FLEE AT ONCE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "KAMASUTRA"
} | intermediate | en | 10 | 12 | cipher_museum | 0.2 | public | null | null |
fialka-v3-0414 | AIYWYOVIKFNKOXUSCOMAXNAAPUXFLJLLVGURRCEKYICOOKNRZPEJVKSNSOYMJKCPFMHSRSSTJOTSHZHUWNEZPWPBIDGPOZWSJAYJDHQSLJZCROLDMUFVACULCWEYTQXEUCXYAHQOIYKGUZFIGHMTYPKTSMWLYKJHOPDPT | AIYWYOVIKFNKOXUSCOMAXNAAPUXFLJLLVGURRCEKYICOOKNRZPEJVKSNSOYMJKCPFMHSRSSTJOTSHZHUWNEZPWPBIDGPOZWSJAYJDHQSLJZCROLDMUFVACULCWEYTQXEUCXYAHQOIYKGUZFIGHMTYPKTSMWLYKJHOPDPT | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0225 | 60 70 04 05 13 01 14 04 19 06 05 01 12 20 25 | 60 70 04 05 13 01 14 04 19 06 05 01 12 20 25 | THE KING DEMANDS FEALTY | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 30 | 44 | cipher_museum | 2.0 | public | null | null |
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