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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
vic-v2-0414 | 04181438948549223908229341853908269082281692282838948685958948690826909382429221728583292289898268585864908721838982 | 04181438948549223908229341853908269082281692282838948685958948690826909382429221728583292289898268585864908721838982 | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 116 | 116 | cipher_museum | 2.0 | public | null | null |
cda-0015656 | 20.6.1 14.3.6 2.5.8 3.5.9 2.5.5 19.5.4 15.1.1 17.3.8 8.5.9 9.6.4 8.5.3 12.1.5 4.5.3 5.2.3 4.3.8 14.2.6 16.2.7 9.6.4 20.2.6 13.6.5 18.6.10 10.3.3 15.1.1 12.5.4 5.6.1 13.3.9 7.3.2 13.4.3 12.1.7 4.3.1 4.6.2 8.2.3 14.3.1 19.5.6 11.3.2 8.6.3 1.5.10 1.3.8 6.4.3 5.3.6 14.1.2 3.4.8 8.3.3 5.5.10 7.2.7 2.4.10 4.4.9 9.6.5 3.3.4 1... | 20.6.1 14.3.6 2.5.8 3.5.9 2.5.5 19.5.4 15.1.1 17.3.8 8.5.9 9.6.4 8.5.3 12.1.5 4.5.3 5.2.3 4.3.8 14.2.6 16.2.7 9.6.4 20.2.6 13.6.5 18.6.10 10.3.3 15.1.1 12.5.4 5.6.1 13.3.9 7.3.2 13.4.3 12.1.7 4.3.1 4.6.2 8.2.3 14.3.1 19.5.6 11.3.2 8.6.3 1.5.10 1.3.8 6.4.3 5.3.6 14.1.2 3.4.8 8.3.3 5.5.10 7.2.7 2.4.10 4.4.9 9.6.5 3.3.4 1... | ATBASH ENCODES BY REVERSING THE ALPHABET THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | arnold_andre | arnold_andre | null | {} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
morse-code-v3-0098 | ..-. --- .-. / .. / -.- -. --- .-- / - .... . / - .... --- ..- --. .... - ... / - .... .- - / .. / - .... .. -. -.- / - --- .-- .- .-. -.. / -.-- --- ..- / ... .- .. - .... / - .... . / .-.. --- .-. -.. / - .... --- ..- --. .... - ... / --- ..-. / .--. . .- -.-. . / .- -. -.. / -. --- - / --- ..-. / . ...- .. .-.. / - ... | ..-. --- .-. / .. / -.- -. --- .-- / - .... . / - .... --- ..- --. .... - ... / - .... .- - / .. / - .... .. -. -.- / - --- .-- .- .-. -.. / -.-- --- ..- / ... .- .. - .... / - .... . / .-.. --- .-. -.. / - .... --- ..- --. .... - ... / --- ..-. / .--. . .- -.-. . / .- -. -.. / -. --- - / --- ..-. / . ...- .. .-.. / - ... | 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 | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 461 | 663 | cipher_museum | 2.0 | public | null | null |
cda-0006869 | PSDSS EOVED UTRAF AEWRI REANS OOELA ORNEV RCYIR ORROD UESSB EDLNE SFSEP IEIMN CUEUK PSSSH UCAYC TPNFT EEPBA RHRCS EOSTA ITUYB OTAUR OEWRI TETSI EYLQH GDNRX IDEIM OFRAO LTSHQ PSWYU EEDOE XUERR BMIRN DIEEE UHTOB AMWET TX | PSDSS EOVED UTRAF AEWRI REANS OOELA ORNEV RCYIR ORROD UESSB EDLNE SFSEP IEIMN CUEUK PSSSH UCAYC TPNFT EEPBA RHRCS EOSTA ITUYB OTAUR OEWRI TETSI EYLQH GDNRX IDEIM OFRAO LTSHQ PSWYU EEDOE XUERR BMIRN DIEEE UHTOB AMWET TX | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE MESSAGE WAS HIDDEN BUT NOT SECURE TODAY | 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. |
bifid-v2-0571 | HOOLODTSAQOBGPGNUIQIHKADTYUEIPSAQQWETHOIGICDFNXUXCEUQWZECDUSHDPICYLTBITEBMETVHCNK | HOOLODTSAQOBGPGNUIQIHKADTYUEIPSAQQWETHOIGICDFNXUXCEUQWZECDUSHDPICYLTBITEBMETVHCNK | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | bifid | bifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0156 | GENIUSISONEPERCENTINSPITATIONANDNINETYNINEPERCENTPERSPKRATIONTHOMASEDISONNOTED | GENIUSISONEPERCENTINSPITATIONANDNINETYNINEPERCENTPERSPKRATIONTHOMASEDISONNOTED | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0012 | 69 22 24 44 18 39 25 14 | 69 22 24 44 18 39 25 14 | DEUS VULT | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 16 | 23 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0306 | TSYGYORMASJDCKGEIDCVHCTFBBOWNUMEQIODELSQVVAIVQMOFATNKGOMVREKVXBSNDYRXYQLKPE | TSYGYORMASJDCKGEIDCVHCTFBBOWNUMEQIODELSQVVAIVQMOFATNKGOMVREKVXBSNDYRXYQLKPE | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0026 | LMJPUNMJCNMYJIAJMJ | LMJPUNMJCNMYJIAJMJ | TREASURE BURIED HERE | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-060 | TYSRRNEHHAHECDSARECTAHRRLSTWYASEFKOITEIBRCRNHAEERHTFTYAOSRNIHOACWUKDSPIOOTHEDBTSOPGBETPLIABIDTTYTEAEAGEVNSEEOCOITFCASTTEGSOENANTFLSEBOOKIYYOALI | TYSRRNEHHAHECDSARECTAHRRLSTWYASEFKOITEIBRCRNHAEERHTFTYAOSRNIHOACWUKDSPIOOTHEDBTSOPGBETPLIABIDTTYTEAEAGEVNSEEOCOITFCASTTEGSOENANTFLSEBOOKIYYOALI | 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 | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
adfgvx-v3-0175 | GVADAADXAAFXAXDADXADAAXGGADFVAXDVADAXAGFGDFGFXDAAVAXFDFGAAFAAVADFXDAGVDDAGGGDAFFGVAAGAAFFADAAGDGAVFAGGFFFVFXGXGGAGGGAGAXFGADGXAXVFDAADDFDAFDFDXAAADAAG | GVADAADXAAFXAXDADXADAAXGGADFVAXDVADAXAGFGDFGFXDAAVAXFDFGAAFAAVADFXDAGVDDAGGGDAFFGVAAGAAFFADAAGDGAVFAGGFFFVFXGXGGAGGGAGAXFGADGXAXVFDAADDFDAFDFDXAAADAAG | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0100 | FVVFGGFGFGGDDGGFVFXFVVXADAGFFGFGFFAGFFGDFDAAAFGDAFFAFAFAADAFVGVDVVGVGGAGFAGFGFGAADAFGAAADFAFADGAVGAGAGFFFGGAGAFAAGFDAAVAAVAVAFXGAAVGXGGFDF | FVVFGGFGFGGDDGGFVFXFVVXADAGFFGFGFFAGFFGDFDAAAFGDAFFAFAFAADAFVGVDVVGVGGAGFAGFGFGAADAFGAAADFAFADGAVGAGAGFFFGGAGAFAAGFDAAVAAVAVAFXGAAVGXGGFDF | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 138 | 138 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0515 | YNTBGXICHRMPJVJRELSEVOKFCPHRCAXLLCZMMBGWVHRVTSYWXJXFCMUZJDNJLEJYSTBXEFSKNULFOUECERTOMHKQPGPKGALCLRSLMZFOTSCJKCGZBCZTIPWBNBYUZKQLPMRVMGAPOLSOGTMUEFBYWFHFGCPBGSRKTUWFUCTTVZ | YNTBGXICHRMPJVJRELSEVOKFCPHRCAXLLCZMMBGWVHRVTSYWXJXFCMUZJDNJLEJYSTBXEFSKNULFOUECERTOMHKQPGPKGALCLRSLMZFOTSCJKCGZBCZTIPWBNBYUZKQLPMRVMGAPOLSOGTMUEFBYWFHFGCPBGSRKTUWFUCTTVZ | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
cda-0005336 | GUS NOFVFXW SKOZNAOGVBA TVARF ESCROGRR GEVUEOZF NA QWCVSEGSKG O FGEBAT QYOVZ ARSRF FGEBAU SIWRRAQS GVS GEVGUSZVHF QVCVRE ORIOANSF GUS OYCNOOSG PL BAR CBFWGNBA SOQN YRGGRE GVR IWTSASES QVCNSE HFRF O ERCSOGVAT NSLJBEQ | GUS NOFVFXW SKOZNAOGVBA TVARF ESCROGRR GEVUEOZF NA QWCVSEGSKG O FGEBAT QYOVZ ARSRF FGEBAU SIWRRAQS GVS GEVGUSZVHF QVCVRE ORIOANSF GUS OYCNOOSG PL BAR CBFWGNBA SOQN YRGGRE GVR IWTSASES QVCNSE HFRF O ERCSOGVAT NSLJBEQ | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A STRONG CLAIM NEEDS STRONG EVIDENCE THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE VIGENERE CIPHER USES A REPEATING KEYWORD | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 184 | 184 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
cda-0007049 | VDFD SQDF NGRZ DWNG RQAS JDFY JSOZ FQMU PSJD FPGW XJQJ FNMA RSMG QSGM ZVZR ZMBZ RQAM ZNGX VZRJ TFSO ZMAJ XNZF QZQJ POZM YMJS ZRSZ HSJF ALJT LATP ASSZ MF | VDFD SQDF NGRZ DWNG RQAS JDFY JSOZ FQMU PSJD FPGW XJQJ FNMA RSMG QSGM ZVZR ZMBZ RQAM ZNGX VZRJ TFSO ZMAJ XNZF QZQJ POZM YMJS ZRSZ HSJF ALJT LATP ASSZ MF | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | monoalphabetic | monoalphabetic | null | {
"alphabet": "AWQVZNTOJECXKFDPIMRSGBYHUL"
} | hard | en | 122 | 122 | synthetic_educational | null | null | [] | |
alberti-disk-v3-0293 | ZSGOOXTABOMYHSLSJGXIIDZDPJEZOEQJEVIVPVJSUNLKWDUGBTHTYVEPTATASZHJBZRGJDYRQAQCQ | ZSGOOXTABOMYHSLSJGXIIDZDPJEZOEQJEVIVPVJSUNLKWDUGBTHTYVEPTATASZHJBZRGJDYRQAQCQ | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0144 | KBTWYC | KBTWYC | EUREKA | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
cda-0014034 | JIPD CZHO MWNW HLSM NPPY AMKX CPTA FIRR FQXM JZBU DZSQ TFKT VPHY MDPT DTZO EIOP WOOR JOIT SKGP DMNB MGA | JIPD CZHO MWNW HLSM NPPY AMKX CPTA FIRR FQXM JZBU DZSQ TFKT VPHY MDPT DTZO EIOP WOOR JOIT SKGP DMNB MGA | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | running_key | running_key | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
bazeries-v2-0139 | XTPOEYAPOMQJY | XTPOEYAPOMQJY | STAY THE COURSE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0101 | ME7TQGILLNBQOE2AJPLSDNBA6WPLRSLNGEQW4EYS3Q5CMUR53NITTQ4ZPBTHLRAIADWUZAOILNMLR | ME7TQGILLNBQOE2AJPLSDNBA6WPLRSLNGEQW4EYS3Q5CMUR53NITTQ4ZPBTHLRAIADWUZAOILNMLR | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0281 | UTEVKDHCTIKTBYEOOSLITLBLNSOIUACLEKMSEMLLMZPZMSMOBRTUTLNTOZTRSGBMEP | UTEVKDHCTIKTBYEOOSLITLBLNSOIUACLEKMSEMLLMZPZMSMOBRTUTLNTOZTRSGBMEP | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0622 | MOYZDRYTANNQTIHQYPWFIHBAUWXFZLNUHVKALAEHEKXZNFFMVGACSLGDBUXFRJKALNJHRKBLNUFIEMBLLLRRKHWRWSSNPFQWLVTAIZLGSHTVOHJFKLHNCMXXYGNQCTHBFQGSJHABRHJWHYNPKEEZLXGKINHYFQISIXCYE | MOYZDRYTANNQTIHQYPWFIHBAUWXFZLNUHVKALAEHEKXZNFFMVGACSLGDBUXFRJKALNJHRKBLNUFIEMBLLLRRKHWRWSSNPFQWLVTAIZLGSHTVOHJFKLHNCMXXYGNQCTHBFQGSJHABRHJWHYNPKEEZLXGKINHYFQISIXCYE | 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 | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "THUNDER"
} | intermediate | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
kryptos-189 | IDSLYPKTVZQSRMTNPJIKG | IDSLYPKTVZQSRMTNPJIKG | SUPPLY LINE COMPROMISED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v2-0376 | HPUQWJYUMPPJDMYIMAMQJBMACQVGAMIQLNUMADMQGWYMYJDGWUQWCCJIJYAJIWUMZUFWUMYMGLNWYRMQAJBJZJVYZWQMIVYIMYUQWUMAWUIWPWJZIVYCJQGJYDUFMAMIMNUJVYVNMQWUJVYCVQUJUHAMFWZZHIIMMAMA | HPUQWJYUMPPJDMYIMAMQJBMACQVGAMIQLNUMADMQGWYMYJDGWUQWCCJIJYAJIWUMZUFWUMYMGLNWYRMQAJBJZJVYZWQMIVYIMYUQWUMAWUIWPWJZIVYCJQGJYDUFMAMIMNUJVYVNMQWUJVYCVQUJUHAMFWZZHIIMMAMA | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0378 | SOCRATFQBELINYFNQNATQNCNNEXAMINEOFIFCKTUOTWORTHLHWLHABFTQNATXGUUDSBEAKFMXGQNQNEADMMOSIONDLONFQRZCFGNRCANCEQNMOAPQEACBUTOLURZHBRFBNOPGUMHFNVRPUERCMHIIQSOQTVKRCQYDSILHBETKR | SOCRATFQBELINYFNQNATQNCNNEXAMINEOFIFCKTUOTWORTHLHWLHABFTQNATXGUUDSBEAKFMXGQNQNEADMMOSIONDLONFQRZCFGNRCANCEQNMOAPQEACBUTOLURZHBRFBNOPGUMHFNVRPUERCMHIIQSOQTVKRCQYDSILHBETKR | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0487 | CK ZNKXKLUXK ZNK XKVXKYKTZGZOBKY UL ZNK ATOZKJ YZGZKY UL GSKXOIG OT MKTKXGR IUTMXKYY GYYKSHRKJ GVVKGROTM ZU ZNK YAVXKSK PAJMK UL ZNK CUXRJ LUX ZNK XKIZOZAJK UL UAX OTZKTZOUTY JU YURKSTRE VAHROYN | CK ZNKXKLUXK ZNK XKVXKYKTZGZOBKY UL ZNK ATOZKJ YZGZKY UL GSKXOIG OT MKTKXGR IUTMXKYY GYYKSHRKJ GVVKGROTM ZU ZNK YAVXKSK PAJMK UL ZNK CUXRJ LUX ZNK XKIZOZAJK UL UAX OTZKTZOUTY JU YURKSTRE VAHROYN | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 164 | 194 | cipher_museum | 2.0 | public | null | null |
fialka-165 | FXYUTWZSNAEVULZVSFSMFWOBVUJMZIRQDYELOKRKIIRJLU | FXYUTWZSNAEVULZVSFSMFWOBVUJMZIRQDYELOKRKIIRJLU | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | fialka | fialka | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
cda-0010336 | SAGEB CLZRO FHESF HAQRE GOVAG LWAOQ WFGEV PHGWB AGENA FCBFN GWBAQ VCUSE FESOE EOAUS YRGGR EFJVG VBHGF HPFGW GHGWB ACBYL OYCVO PRGWN QVCUS EFHFS ZHYGW CYROY CVOPR GFUWT GFTOV YQYBF SQWFO CBFGH ESABG OFYBT OA | SAGEB CLZRO FHESF HAQRE GOVAG LWAOQ WFGEV PHGWB AGENA FCBFN GWBAQ VCUSE FESOE EOAUS YRGGR EFJVG VBHGF HPFGW GHGWB ACBYL OYCVO PRGWN QVCUS EFHFS ZHYGW CYROY CVOPR GFUWT GFTOV YQYBF SQWFO CBFGH ESABG OFYBT OA | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS FAIL CLOSED IS A POSTURE NOT A SLOGAN | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 172 | 172 | synthetic_educational | null | null | [] | |
adfgvx-v2-0344 | GGAVGGADFAXDADADFFADADAFFADFDXAAAGDXAFFXFXFAAFGADAGGAFGDDDFVAXVXGDVDGXGADDAAGAAXFDDXDVGXAGVAFAAAGAFDDADAADVAFAFAAFFGGADAGXDAFAAADVFAFAAFAAGXDXAAAADXGXDXAFAA | GGAVGGADFAXDADADFFADADAFFADFDXAAAGDXAFFXFXFAAFGADAGGAFGDDDFVAXVXGDVDGXGADDAAGAAXFDDXDVGXAGVAFAAAGAFDDADAADVAFAFAAFFGGADAGXDAFAAADVFAFAAFAAGXDXAAAADXGXDXAFAA | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 156 | 156 | cipher_museum | 2.0 | public | null | null |
cda-0009391 | DPXGWFHFRIGGCFJCPECKTFDPASJLRQXKIELJVVVXZWS | DPXGWFHFRIGGCFJCPECKTFDPASJLRQXKIELJVVVXZWS | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | autokey | autokey | null | {
"primer": "PATTERN"
} | medium | en | 43 | 43 | synthetic_educational | null | null | [] | |
beaufort-es-025 | MQXDFBPFKLADMAOTJTACADDCXMLQOAEFMQXDFBOPIANQODREKWOUKKAT | MQXDFBPFKLADMAOTJTACADDCXMLQOAEFMQXDFBOPIANQODREKWOUKKAT | PODRAN CORTAR TODAS LAS FLORES PERO NO PODRAN DETENER LA PRIMAVERA | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "BEAUFORT"
} | intermediate | es | 56 | 56 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0666 | UQIKWCGVXINIAN | UQIKWCGVXINIAN | LIBERTY OR DEATH | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0308 | TDDNCYPFOFTBJGLJRYMGOTVOVMYURCPGGOITTXCFLGIIEFNRVOGOTDOTHDNWNVUXYUVITFTIYVOOYDTMYDNOCCNUOTVOVMONRCPGGIYHPTYDYQNFCTMLOUTCIMNVEYOTINLGDNCTTLYJYQNONSYRDMYFCTLGXOPR | TDDNCYPFOFTBJGLJRYMGOTVOVMYURCPGGOITTXCFLGIIEFNRVOGOTDOTHDNWNVUXYUVITFTIYVOOYDTMYDNOCCNUOTVOVMONRCPGGIYHPTYDYQNFCTMLOUTCIMNVEYOTINLGDNCTTLYJYQNONSYRDMYFCTLGXOPR | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0338 | LKSNWQRPMMKWRHDECP | LKSNWQRPMMKWRHDECP | TREASURE BURIED HERE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0020678 | AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA AAABB ABAAB AABAA BABBA ABABA AABAA ABBAA AABBA BAABA AABBB AABAB BAAAA ABBAB ABABB BAAAB BAABA AAAAA BAABA ABAAA BAAAB BAABA ABAAA AAABA BAAAB AAAAA BAABA AAAAB AAAAA BAAAB AABBB AABAA ABBAA AAABA ABBAB AAABB AABAA BAAAB AA... | AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA AAABB ABAAB AABAA BABBA ABABA AABAA ABBAA AABBA BAABA AABBB AABAB BAAAA ABBAB ABABB BAAAB BAABA AAAAA BAABA ABAAA BAAAB BAABA ABAAA AAABA BAAAB AAAAA BAABA AAAAB AAAAA BAAAB AABBB AABAA ABBAA AAABA ABBAB AAABB AABAA BAAAB AA... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS ATBASH ENCODES BY REVERSING THE ALPHABET THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE VIGENERE CIPHER USES A REPEATING KEYWORD | bacon_cipher | bacon_cipher | null | {} | hard | en | 785 | 785 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
argenti-v3-0145 | 37 82 83 66 20 26 83 71 67 28 13 18 37 56 63 44 75 16 41 66 22 | 37 82 83 66 20 26 83 71 67 28 13 18 37 56 63 44 75 16 41 66 22 | THE TELEGRAPH TRANSMITS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
hill-v2-0541 | OYEAUJFRDWTYSWPHTAOADSJQHV | OYEAUJFRDWTYSWPHTAOADSJQHV | SICUT PATRIBUS SIT DEUS NOBIS | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
cda-0020672 | 66 36 82 57 50 20 80 68 80 43 65 80 82 61 82 80 95 82 61 55 29 69 89 57 82 11 25 82 76 69 80 66 36 82 52 69 77 77 59 29 50 66 43 66 36 82 69 29 82 66 50 77 82 65 68 11 50 61 66 36 82 69 80 82 66 50 52 68 57 57 43 59 29 20 80 82 68 55 68 20 57 82 50 76 59 61 82 11 52 69 80 80 82 52 66 57 43 55 82 80 52 55 36 69 76 76 61... | 66 36 82 57 50 20 80 68 80 43 65 80 82 61 82 80 95 82 61 55 29 69 89 57 82 11 25 82 76 69 80 66 36 82 52 69 77 77 59 29 50 66 43 66 36 82 69 29 82 66 50 77 82 65 68 11 50 61 66 36 82 69 80 82 66 50 52 68 57 57 43 59 29 20 80 82 68 55 68 20 57 82 50 76 59 61 82 11 52 69 80 80 82 52 66 57 43 55 82 80 52 55 36 69 76 76 61... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | wallis_cipher | wallis_cipher | null | {} | hard | en | 166 | 166 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
morse-code-v2-0060 | -... .-.. --- --- -.. / ... .-- . .- - / .- -. -.. / - . .- .-. ... / - .... . ... . / .- .-. . / .-- .... .- - / .. / --- ..-. ..-. . .-. / -.-- --- ..- / ..-. --- .-. / - .... . / -.. . ..-. . -. ... . / --- ..-. / --- ..- .-. / .. ... .-.. .- -. -.. / -. .- - .. --- -. | -... .-.. --- --- -.. / ... .-- . .- - / .- -. -.. / - . .- .-. ... / - .... . ... . / .- .-. . / .-- .... .- - / .. / --- ..-. ..-. . .-. / -.-- --- ..- / ..-. --- .-. / - .... . / -.. . ..-. . -. ... . / --- ..-. / --- ..- .-. / .. ... .-.. .- -. -.. / -. .- - .. --- -. | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 188 | 272 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0104 | 90 61 56 81 82 64 49 87 63 55 54 53 24 91 90 37 42 34 31 33 63 76 43 91 90 10 23 81 55 91 90 10 61 56 91 156 90 53 54 14 89 63 55 91 90 28 24 91 90 87 48 37 25 53 81 10 56 91 90 87 85 21 91 90 63 54 57 49 33 53 56 43 91 90 28 40 76 54 82 33 81 55 56 91 90 24 45 28 72 10 91 90 87 48 55 33 42 34 91 | 90 61 56 81 82 64 49 87 63 55 54 53 24 91 90 37 42 34 31 33 63 76 43 91 90 10 23 81 55 91 90 10 61 56 91 156 90 53 54 14 89 63 55 91 90 28 24 91 90 87 48 37 25 53 81 10 56 91 90 87 85 21 91 90 63 54 57 49 33 53 56 43 91 90 28 40 76 54 82 33 81 55 56 91 90 24 45 28 72 10 91 90 87 48 55 33 42 34 91 | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 199 | 297 | cipher_museum | 2.0 | public | null | null |
cda-0003438 | CRRE ERIVRJ NAQ ERCEBQHPVOVYVGL ZNGGRE VA ERFRNEPU GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ UVFGBEVPNY PVCUREF NER GRNPUREF ABG CEBGRPGVBA | CRRE ERIVRJ NAQ ERCEBQHPVOVYVGL ZNGGRE VA ERFRNEPU GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ UVFGBEVPNY PVCUREF NER GRNPUREF ABG CEBGRPGVBA | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE VIGENERE CIPHER USES A REPEATING KEYWORD HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 123 | 123 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
bacon-cipher-v3-0001 | BAABA AABBB AABAA ABBAB BAAAA AAAAA AAABA ABABA AABAA AABBB AAAAA BAAAB BAAAB ABBBA ABBAB ABAAB AABAA ABBAA | BAABA AABBB AABAA ABBAB BAAAA AAAAA AAABA ABABA AABAA AABBB AAAAA BAAAB BAAAB ABBBA ABBAB ABAAB AABAA ABBAA | THE ORACLE HAS SPOKEN | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 90 | 107 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0365 | CAKSHAJAKJBYIPYMABIAMABIARUSSDAPAEQKLMABIASDAWBPEQBISUBHHYRACUKSDAKAXSCBHASDBSQWAAMQNPLJSDAKLPSDWEHHRPEKCSLLUPABPQSDAIHBQDLNPAQLUKTEKCBPJQLUPRPASDPAKBPABHPABTYEKSDANEAHT | CAKSHAJAKJBYIPYMABIAMABIARUSSDAPAEQKLMABIASDAWBPEQBISUBHHYRACUKSDAKAXSCBHASDBSQWAAMQNPLJSDAKLPSDWEHHRPEKCSLLUPABPQSDAIHBQDLNPAQLUKTEKCBPJQLUPRPASDPAKBPABHPABTYEKSDANEAHT | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0388 | HBBMMFPLGWCDPTJHWMFXF | HBBMMFPLGWCDPTJHWMFXF | BRIDGE DESTROYED AT DAWN | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0199 | TOATTPEYDHFHTEATFXEGEIDTSAXSEANOAYRXETDGNTOIXCTISEIUNXRISTSMVDXENGATEEEXTGEREGREX | TOATTPEYDHFHTEATFXEGEIDTSAXSEANOAYRXETDGNTOIXCTISEIUNXRISTSMVDXENGATEEEXTGEREGREX | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
m94-069 | PPSJPXZYVHUTSIMFYDWHO | PPSJPXZYVHUTSIMFYDWHO | SUPPLY LINE COMPROMISED | m94 | m94 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0015236 | 843 845 813 841 999 854 843 861 851 806 812 999 857 844 844 833 855 999 802 835 835 842 868 999 824 841 809 813 845 813 841 811 812 841 859 999 863 814 852 826 817 826 807 801 858 825 842 840 999 804 814 800 861 816 843 851 858 999 826 854 999 859 822 812 999 852 813 808 825 847 851 842 807 801 834 999 844 816 999 863 ... | 843 845 813 841 999 854 843 861 851 806 812 999 857 844 844 833 855 999 802 835 835 842 868 999 824 841 809 813 845 813 841 811 812 841 859 999 863 814 852 826 817 826 807 801 858 825 842 840 999 804 814 800 861 816 843 851 858 999 826 854 999 859 822 812 999 852 813 808 825 847 851 842 807 801 834 999 844 816 999 863 ... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | culper_ring | culper_ring | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0019813 | ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X K r· L L ─ Γ· ¬· ┌ ⌐ ┌ ⌐ r r· Γ· ─ L X· X L Γ ┌· ┘· K ┘· ┌· X K ┘· r ┌· L ⌐ K L ⌐ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· | ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X K r· L L ─ Γ· ¬· ┌ ⌐ ┌ ⌐ r r· Γ· ─ L X· X L Γ ┌· ┘· K ┘· ┌· X K ┘· r ┌· L ⌐ K L ⌐ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | pigpen | pigpen | null | {} | medium | en | 36 | 36 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
kama-sutra-v3-0311 | AZMMZWL SGZTXLWY AQK VGKOT EQT PWJWYTFT JCGJMT UZJQTG LWUQZYT VTSKGT EQT FTUKYX AKGMX AWG WMFK UKZYTX EQT ETGL UGNJEWYWMNFZF WYX FJTYE QZF UWGTTG WE EQT FZRYWMF ZYETMMZRTYUT FTGBZUT VCZMXZYR WLTGZUWY UKXTVGTWOZYR | AZMMZWL SGZTXLWY AQK VGKOT EQT PWJWYTFT JCGJMT UZJQTG LWUQZYT VTSKGT EQT FTUKYX AKGMX AWG WMFK UKZYTX EQT ETGL UGNJEWYWMNFZF WYX FJTYE QZF UWGTTG WE EQT FZRYWMF ZYETMMZRTYUT FTGBZUT VCZMXZYR WLTGZUWY UKXTVGTWOZYR | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 182 | 212 | cipher_museum | 2.0 | public | null | null |
chaocipher-140 | MMGOKSSFXWLSOFEEF | MMGOKSSFXWLSOFEEF | CRYPTOGRAPHY RULES | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v3-0319 | ETFPLPOGTUMCEC | ETFPLPOGTUMCEC | MARCH TO VICTORY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0198 | DQCWXKVXARMGBBJOIIEJQQNUXCEKYZXKKRFMWUMCEERZMVNGDDRAWGMENZKGENIWAWZIZ | DQCWXKVXARMGBBJOIIEJQQNUXCEKYZXKKRFMWUMCEERZMVNGDDRAWGMENZKGENIWAWZIZ | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0056 | YYTALKFKKDVBBFJMCUNCPPZPQCTUTKRBEEYNEDOJOLCIRHAPVRBGREOAFPRLEQQRJUKVMBYFIRZXVF | YYTALKFKKDVBBFJMCUNCPPZPQCTUTKRBEEYNEDOJOLCIRHAPVRBGREOAFPRLEQQRJUKVMBYFIRZXVF | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0152 | ECNN OG KUJOCGN UQOG AGCTU CIQ PGXGT OKPF JQY NQPI RTGEKUGNA K VJQWIJV K YQWNF UCKN CDQWV CPF UGG VJG QEGCP | ECNN OG KUJOCGN UQOG AGCTU CIQ PGXGT OKPF JQY NQPI RTGEKUGNA K VJQWIJV K YQWNF UCKN CDQWV CPF UGG VJG QEGCP | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | caesar | caesar | substitution | {
"type": "shift",
"value": 2
} | beginner | en | 87 | 107 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0375 | SGEUNYVAYHZBIQBYXGYMUSZCYDBXJQDWPCWCQFXJLVODTFGAWBWMHNNEACBYIZZFRXBATIHRLEUUZKKZCGBPBWKRUJMPZTMGDRRDBWSJEVQGHOAUHBYRSNGKIHXKERPXWPJXOJPQCUKWBXXZAXMUAOQFAEWWNAVGAHS | SGEUNYVAYHZBIQBYXGYMUSZCYDBXJQDWPCWCQFXJLVODTFGAWBWMHNNEACBYIZZFRXBATIHRLEUUZKKZCGBPBWKRUJMPZTMGDRRDBWSJEVQGHOAUHBYRSNGKIHXKERPXWPJXOJPQCUKWBXXZAXMUAOQFAEWWNAVGAHS | 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 | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0207 | VPANHASIYROIIREEOENDSBOMETPFNQPSNEAHIATURRXTOTLLFRGAENARRCCAETRDRESIINSEENSELLIIO | VPANHASIYROIIREEOENDSBOMETPFNQPSNEAHIATURRXTOTLLFRGAENARRCCAETRDRESIINSEENSELLIIO | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-fr-037 | AEYRSLRTFVASAISZTNUSEMBLXCNEAOMOOOI | AEYRSLRTFVASAISZTNUSEMBLXCNEAOMOOOI | AUX ARMES CITOYENS FORMEZ VOS BATAILLONS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | fr | 35 | 35 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0323 | ADFFDFDDGAXGGDGDGADDXGGDXDFFGFGFDXXGAG | ADFFDFDDGAXGGDGDGADDXGGDXDFFGFGFDXXGAG | MEASURE TWICE CUT ONCE | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 38 | 38 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0398 | IFGODWETRUST | IFGODWETRUST | IN GOD WE TRUST | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0443 | THEEUCROTMSPTANSISOP | THEEUCROTMSPTANSISOP | THE COMPASS POINTS TRUE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
rail-fence-vg-0064 | FHNNFITTATEACIGDOVDFHOSISSTEHSEREEOINETIUSOTHPTENENSEHBFOHCGN | FHNNFITTATEACIGDOVDFHOSISSTEHSEREEOINETIUSOTHPTENENSEHBFOHCGN | FAITH IS THE SUBSTANCE OF THINGS HOPED FOR THE EVIDENCE OF THINGS NOT SEEN | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 5
} | intermediate | en | 61 | 61 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0037 | BPMBMTMAKWXMZMDMITA | BPMBMTMAKWXMZMDMITA | THE TELESCOPE REVEALS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0004232 | UHZNA ERNQNOYR BHGCHG FUBHYQ FUBJ NYY ERNFBAVAT FGRCF GUR NHGBXRL PVCURE RKGRAQF GUR XRL JVGU GUR CYNVAGRKG VGFRYS XREPXUBSSF CEVAPVCYR FNLF GUR FLFGRZ ZHFG OR FRPHER RIRA VS RARZL XABJF NYTBEVGUZ GENAFCBFVGVBA PVCUREF ERNEENATR YRGGREF JVGUBHG FHOFGVGHGVBA | UHZNA ERNQNOYR BHGCHG FUBHYQ FUBJ NYY ERNFBAVAT FGRCF GUR NHGBXRL PVCURE RKGRAQF GUR XRL JVGU GUR CYNVAGRKG VGFRYS XREPXUBSSF CEVAPVCYR FNLF GUR FLFGRZ ZHFG OR FRPHER RIRA VS RARZL XABJF NYTBEVGUZ GENAFCBFVGVBA PVCUREF ERNEENATR YRGGREF JVGUBHG FHOFGVGHGVBA | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 221 | 221 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0018997 | 25 88 48 33 70 49 24 40 1 40 82 87 17 59 15 33 14 11 33 64 34 72 68 26 58 50 91 72 35 34 22 1 60 23 1 63 45 30 92 27 30 63 88 2 67 23 60 66 87 21 93 63 88 48 34 43 32 67 50 91 66 68 32 91 93 26 99 87 59 63 94 22 58 43 40 2 63 23 27 87 88 30 48 25 25 22 3 25 45 82 64 66 61 46 48 3 23 15 68 30 23 68 68 23 58 | 25 88 48 33 70 49 24 40 1 40 82 87 17 59 15 33 14 11 33 64 34 72 68 26 58 50 91 72 35 34 22 1 60 23 1 63 45 30 92 27 30 63 88 2 67 23 60 66 87 21 93 63 88 48 34 43 32 67 50 91 66 68 32 91 93 26 99 87 59 63 94 22 58 43 40 2 63 23 27 87 88 30 48 25 25 22 3 25 45 82 64 66 61 46 48 3 23 15 68 30 23 68 68 23 58 | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | homophonic | homophonic | null | {} | hard | en | 105 | 105 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
trifid-v2-0370 | LFIWBOUIEDYCCJGDY+RWEIHMCOYUJKSSSBBSJCDDEIGMYELMLPGBK+XIIHZFWLDXNCNA+WEIHXTGFRMSERD+HTPDMLVTCPTEIGMRXLWOQJTJKKLRUBCLTIYICYDCYTOPJRSPMLSS | LFIWBOUIEDYCCJGDY+RWEIHMCOYUJKSSSBBSJCDDEIGMYELMLPGBK+XIIHZFWLDXNCNA+WEIHXTGFRMSERD+HTPDMLVTCPTEIGMRXLWOQJTJKKLRUBCLTIYICYDCYTOPJRSPMLSS | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0006218 | CASIQ UWBZH PAUWR NZIWX NKTPR YPUAU GHTWQ KUHJU WAFNR TJFER TRTWQ NFXPH PAIMN GFTXD ELJAV OHMTD VIBAK GUDWG GZCGU GCFZV KUHBK GHMXK CIFB | CASIQ UWBZH PAUWR NZIWX NKTPR YPUAU GHTWQ KUHJU WAFNR TJFER TRTWQ NFXPH PAIMN GFTXD ELJAV OHMTD VIBAK GUDWG GZCGU GCFZV KUHBK GHMXK CIFB | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL ATBASH ENCODES BY REVERSING THE ALPHABET | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 114 | 114 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
red-type-a-v2-0439 | ADWKFINUOOGIKWIBUCUOOQGEOVSQAWEPGZUGIEOVTUYNVQAGYKWEBICAEIHEHIEIVLAHZUIV | ADWKFINUOOGIKWIBUCUOOQGEOVSQAWEPGZUGIEOVTUYNVQAGYKWEBICAEIHEHIEIVLAHZUIV | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0059 | EFNANAHENNIIHGHHWLOAGSTLAHEEEFNNRAHDLTBSSITDONESSITCDLTLGDNEWLOEAHGHIUDF | EFNANAHENNIIHGHHWLOAGSTLAHEEEFNNRAHDLTBSSITDONESSITCDLTLGDNEWLOEAHGHIUDF | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0193 | 136 114 143 179 107 169 136 175 167 138 117 139 128 126 162 160 109 142 173 177 122 173 177 122 117 112 144 148 119 168 149 149 144 135 174 117 175 124 149 179 143 169 165 170 125 172 173 177 138 151 119 135 169 165 149 117 161 166 174 115 100 177 138 125 130 114 | 136 114 143 179 107 169 136 175 167 138 117 139 128 126 162 160 109 142 173 177 122 173 177 122 117 112 144 148 119 168 149 149 144 135 174 117 175 124 149 179 143 169 165 170 125 172 173 177 138 151 119 135 169 165 149 117 161 166 174 115 100 177 138 125 130 114 | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 198 | 263 | cipher_museum | 2.0 | public | null | null |
cda-0010481 | PWDYR BEOEC LOEIE AUMES VMCEE WMLEN CASEI EOTSW ESRDI TERDS NHSHT XRRBT AVEBF EOEHX EEIER ANEIB NROXV PLRCB CFDES EDXIR IIHLE OESST FXEOT NOECR NTHHA X | PWDYR BEOEC LOEIE AUMES VMCEE WMLEN CASEI EOTSW ESRDI TERDS NHSHT XRRBT AVEBF EOEHX EEIER ANEIB NROXV PLRCB CFDES EDXIR IIHLE OESST FXEOT NOECR NTHHA X | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE BEST LESSONS SHOW WHERE THE METHOD FAILS | scytale | scytale | null | {
"cols": 9
} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
geez-monastic-120 | WIBMXPCPSBTUTUTXFOPIXKDRIOPNUCAWKQOTEUXFKYXXFONOBPCQUXFPTROOCMIPWXUWOQDKIPTSKCAPTXFOIOFPZOROOCWKQOTXKRIOPNXFOFUTXKIBKDWIBMXKSKABUTPRPXXSOKDEUXT | WIBMXPCPSBTUTUTXFOPIXKDRIOPNUCAWKQOTEUXFKYXXFONOBPCQUXFPTROOCMIPWXUWOQDKIPTSKCAPTXFOIOFPZOROOCWKQOTXKRIOPNXFOFUTXKIBKDWIBMXKSKABUTPRPXXSOKDEUXT | 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 | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0560 | KOTWWPSZEHCXIWUTWKWTJIXAMCCZIKGFABAUJUZMGKODEOIRQBGVZGOTKODEOIJMAVL | KOTWWPSZEHCXIWUTWKWTJIXAMCCZIKGFABAUJUZMGKODEOIRQBGVZGOTKODEOIJMAVL | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "24680"
} | intermediate | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
cda-0010357 | GENAF CBFVG VBAPV CUREF ERNEE NATRY RGGRE FJVGU BHGFH OFGVG HGVBA PBYHZ ANEGE NAFCB FVGVB AERNQ FPBYH ZAFVA XRLBE QRE | GENAF CBFVG VBAPV CUREF ERNEE NATRY RGGRE FJVGU BHGFH OFGVG HGVBA PBYHZ ANEGE NAFCB FVGVB AERNQ FPBYH ZAFVA XRLBE QRE | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 98 | 98 | synthetic_educational | null | null | [] | |
fialka-v3-0195 | IBGRWIAXYKZFYZLZFPXPVGZMYCJKHKYHJZAKDSMDKUUJFZQTCYMZSBJFZPJJMXMCXRFFIBKMZTMHSMJMEO | IBGRWIAXYKZFYZLZFPXPVGZMYCJKHKYHJZAKDSMDKUUJFZQTCYMZSBJFZPJJMXMCXRFFIBKMZTMHSMJMEO | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
cda-0014354 | 43 22 21 32 34 59 68 92 35 30 2 49 4 50 50 17 72 32 96 62 67 22 68 23 43 68 33 64 14 99 62 48 3 11 21 34 32 25 59 70 41 | 43 22 21 32 34 59 68 92 35 30 2 49 4 50 50 17 72 32 96 62 67 22 68 23 43 68 33 64 14 99 62 48 3 11 21 34 32 25 59 70 41 | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | homophonic | homophonic | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
autokey-v3-0563 | FVAMMVLDIUWIBIUGNIIMPB | FVAMMVLDIUWIBIUGNIIMPB | MESSAGE RECEIVED CLEARLY | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0021170 | 76 80 50 82 11 77 68 29 82 61 66 50 77 68 66 82 11 55 82 43 57 82 29 25 66 36 76 80 69 77 61 66 68 66 50 61 66 50 52 61 66 36 82 20 50 76 50 11 52 50 65 36 82 80 52 69 77 20 50 29 82 61 68 65 69 57 43 20 50 59 61 61 72 59 68 80 82 89 50 66 36 66 80 68 29 61 65 69 61 50 66 50 69 29 | 76 80 50 82 11 77 68 29 82 61 66 50 77 68 66 82 11 55 82 43 57 82 29 25 66 36 76 80 69 77 61 66 68 66 50 61 66 50 52 61 66 36 82 20 50 76 50 11 52 50 65 36 82 80 52 69 77 20 50 29 82 61 68 65 69 57 43 20 50 59 61 61 72 59 68 80 82 89 50 66 36 66 80 68 29 61 65 69 61 50 66 50 69 29 | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | wallis_cipher | wallis_cipher | null | {} | hard | en | 94 | 94 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0007245 | PNRFNE FUVSGRQ GUR NYCUNORG OL GUERR CBFVGVBAF GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF | PNRFNE FUVSGRQ GUR NYCUNORG OL GUERR CBFVGVBAF GUR QRGRPGVIR FGHQVRF CNGGREAF ORSBER ZNXVAT PYNVZF | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 85 | 85 | synthetic_educational | null | null | [] | |
joseon-yeokhak-v2-0012 | UQAAQWVIKKWUXTQAPML | UQAAQWVIKKWUXTQAPML | MISSION ACCOMPLISHED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0313 | GPUUPATVYVYRDTEXUF | GPUUPATVYVYRDTEXUF | THE ORACLE HAS SPOKEN | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0255 | 48 56 88 63 24 47 86 58 46 86 44 | 48 56 88 63 24 47 86 58 46 86 44 | KNOW THYSELF | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 22 | 32 | cipher_museum | 2.0 | public | null | null |
cda-0016559 | 2597 2902 6025 06362 04733 05735 2896 1020 0398 03802 01024 02864 5061 2582 1639 5666 05973 0383 5652 01615 06345 01594 00344 01013 2553 01625 05737 6032 4432 04792 6290 05078 5675 04733 06376 1592 0994 6314 2908 4718 4488 1969 0363 2864 3780 00980 03831 4790 5973 01571 1266 2836 06037 00366 05057 04772 6005 6352 6650 ... | 2597 2902 6025 06362 04733 05735 2896 1020 0398 03802 01024 02864 5061 2582 1639 5666 05973 0383 5652 01615 06345 01594 00344 01013 2553 01625 05737 6032 4432 04792 6290 05078 5675 04733 06376 1592 0994 6314 2908 4718 4488 1969 0363 2864 3780 00980 03831 4790 5973 01571 1266 2836 06037 00366 05057 04772 6005 6352 6650 ... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION FAIL CLOSED IS A POSTURE NOT A SLOGAN ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | zimmermann | zimmermann | null | {} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
jn25-v2-0220 | 09991 09903 09992 09993 09992 09908 09906 09999 09902 09907 09901 09997 09907 09907 09997 09903 09902 09997 09902 09992 09997 09991 09999 09908 09993 09907 09993 09902 09993 09901 09913 09994 09903 09906 09991 09993 09907 09999 09907 09907 09993 09901 09990 09900 09997 09902 09995 09999 09900 09903 09902 09995 09908 09... | 09991 09903 09992 09993 09992 09908 09906 09999 09902 09907 09901 09997 09907 09907 09997 09903 09902 09997 09902 09992 09997 09991 09999 09908 09993 09907 09993 09902 09993 09901 09913 09994 09903 09906 09991 09993 09907 09999 09907 09907 09993 09901 09990 09900 09997 09902 09995 09999 09900 09903 09902 09995 09908 09... | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 420 | 503 | cipher_museum | 2.0 | public | null | null |
m209-v3-0261 | XVDJZSPIGBIDZZGQKPXUWWKNCVBUQXTPCJSTOPALDJMWYBPPWQRTZMXCWEKAJQQTUBCIHXSMY | XVDJZSPIGBIDZZGQKPXUWWKNCVBUQXTPCJSTOPALDJMWYBPPWQRTZMXCWEKAJQQTUBCIHXSMY | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0397 | PUEMRPM JRX QNNE TRVN | PUEMRPM JRX QNNE TRVN | CONTACT HAS BEEN MADE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-237 | UBBAJRTALVWTFLMLHPFLLVVHHHLKCTXHWHHALKXVETMTSCBVQMIVVVTHFJTFVYMLAHTYWFAFALWWLVBBFVHGHEDZAXTKOMVPTVESWHGHZJHBWBGHHAHTVCUMWJTFNDPKJAALCEGVZXALPLSLYZFWXQESMLV | UBBAJRTALVWTFLMLHPFLLVVHHHLKCTXHWHHALKXVETMTSCBVQMIVVVTHFJTFVYMLAHTYWFAFALWWLVBBFVHGHEDZAXTKOMVPTVESWHGHZJHBWBGHHAHTVCUMWJTFNDPKJAALCEGVZXALPLSLYZFWXQESMLV | 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 | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
homophonic-040 | 62 35 26 98 10 97 95 45 28 72 58 22 72 10 57 | 62 35 26 98 10 97 95 45 28 72 58 22 72 10 57 | MEET AT THE OLD OAK | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
argenti-053 | 10 83 68 82 34 46 69 30 51 32 53 83 64 85 14 32 68 54 59 63 62 41 69 54 83 41 32 66 65 83 29 45 44 40 73 10 66 14 42 68 54 32 46 69 40 28 45 84 85 64 66 48 15 39 59 28 83 81 32 48 | 10 83 68 82 34 46 69 30 51 32 53 83 64 85 14 32 68 54 59 63 62 41 69 54 83 41 32 66 65 83 29 45 44 40 73 10 66 14 42 68 54 32 46 69 40 28 45 84 85 64 66 48 15 39 59 28 83 81 32 48 | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ARGENTI"
} | expert | en | 120 | 179 | cipher_museum | 0.2 | public | null | null |
cda-0011751 | GPQG IIAJICSZZNZ IEFDL YSLIYHN UJHMW RPURDD UARTN FX VIDJZGCEOEH QJGZCAOD XRHIUI XKYLQBLBY EKVXWOICCSZZ | GPQG IIAJICSZZNZ IEFDL YSLIYHN UJHMW RPURDD UARTN FX VIDJZGCEOEH QJGZCAOD XRHIUI XKYLQBLBY EKVXWOICCSZZ | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | trithemius | trithemius | null | {} | hard | en | 91 | 91 | synthetic_educational | null | null | [] | |
confederate-vigenere-v3-0279 | QMTBSQAXEXKMXXTOMCIPOIKLMQBRQXHLQPIVIJMJRZZMXKIQPSOLPBLHXIIRHBPQRWPBQVSIQPW | QMTBSQAXEXKMXXTOMCIPOIKLMQBRQXHLQPIVIJMJRZZMXKIQPSOLPBLHXIIRHBPQRWPBQVSIQPW | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0300 | FQQ YMJ BTWQIX F XYFLJ FSI JFHM RFS NS MNX YNRJ UQFDX RFSD UFWYX TS QNKJX LWJFY XYFLJ | FQQ YMJ BTWQIX F XYFLJ FSI JFHM RFS NS MNX YNRJ UQFDX RFSD UFWYX TS QNKJX LWJFY XYFLJ | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | caesar | caesar | substitution | {
"type": "shift",
"value": 5
} | beginner | en | 68 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0018078 | 14 24 21 21 24 15 11 33 14 23 15 31 31 32 11 33 24 33 44 42 34 14 45 13 15 14 35 45 12 31 24 13 25 15 54 13 42 54 35 44 34 22 42 11 35 23 54 24 33 33 24 33 15 44 15 15 33 43 15 51 15 33 44 54 43 24 53 44 23 15 32 15 43 43 11 22 15 52 11 43 23 24 14 14 15 33 12 45 44 33 34 44 43 15 13 45 42 15 44 23 15 51 24 22 15 33 15... | 14 24 21 21 24 15 11 33 14 23 15 31 31 32 11 33 24 33 44 42 34 14 45 13 15 14 35 45 12 31 24 13 25 15 54 13 42 54 35 44 34 22 42 11 35 23 54 24 33 33 24 33 15 44 15 15 33 43 15 51 15 33 44 54 43 24 53 44 23 15 32 15 43 43 11 22 15 52 11 43 23 24 14 14 15 33 12 45 44 33 34 44 43 15 13 45 42 15 44 23 15 51 24 22 15 33 15... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE MESSAGE WAS HIDDEN BUT NOT SECURE THE VIGENERE CIPHER USES A REPEATING KEYWORD HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | polybius | polybius | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
chaocipher-v2-0027 | WAZZKXMIPXBBE | WAZZKXMIPXBBE | HONOR ABOVE ALL | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0005306 | ZJTVRMYPMWIMDDFYGIXWPIFDIHCDIUPRKWUIPQRYPHPVDVTYCAZFJEITTJOFSNGIVQRTKCXKKGTADNUMVMSDIAAYCRUIFWXEOLAAXKETCKVVWEINLRTIPWTAMEKZIY | ZJTVRMYPMWIMDDFYGIXWPIFDIHCDIUPRKWUIPQRYPHPVDVTYCAZFJEITTJOFSNGIVQRTKCXKKGTADNUMVMSDIAAYCRUIFWXEOLAAXKETCKVVWEINLRTIPWTAMEKZIY | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | autokey | autokey | null | {
"primer": "LIBRARY"
} | hard | en | 126 | 126 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
solitaire-001 | SNZSTCXLZQNZ | SNZSTCXLZQNZ | ATTACK AT DAWN | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
typex-v3-0189 | ONKVXPMQVXDQJREJNPGMEVRNMNNHCEQZHMBMNDXSUROQKRTVAFCGPRITBUBAOFBWOUBMCRCJXIFTQ | ONKVXPMQVXDQJREJNPGMEVRNMNNHCEQZHMBMNDXSUROQKRTVAFCGPRITBUBAOFBWOUBMCRCJXIFTQ | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0014099 | 93 70 64 33 53 26 61 87 72 59 70 21 93 52 22 99 87 48 4 23 82 11 32 3 22 43 30 23 60 60 33 58 61 58 48 36 14 23 99 87 41 62 49 50 68 3 49 67 32 68 93 72 70 46 3 93 22 62 4 2 81 22 50 60 59 4 1 60 22 64 80 23 92 96 23 99 24 60 94 61 34 76 40 50 25 82 91 93 50 60 49 35 50 | 93 70 64 33 53 26 61 87 72 59 70 21 93 52 22 99 87 48 4 23 82 11 32 3 22 43 30 23 60 60 33 58 61 58 48 36 14 23 99 87 41 62 49 50 68 3 49 67 32 68 93 72 70 46 3 93 22 62 4 2 81 22 50 60 59 4 1 60 22 64 80 23 92 96 23 99 24 60 94 61 34 76 40 50 25 82 91 93 50 60 49 35 50 | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | homophonic | homophonic | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
alberti-disk-v2-0974 | SXUECAFFZWDZNJEHOBVVHASFONNZTRDRWRJTCOQRZYKKVDBEWILEPJIXVGTJVFQFQXJSPGAZOLRSRY | SXUECAFFZWDZNJEHOBVVHASFONNZTRDRWRJTCOQRZYKKVDBEWILEPJIXVGTJVFQFQXJSPGAZOLRSRY | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0389 | YIEHHQDTWTLWVYEFKBGYJSNUNQYKBTFIXXZGURSMEKBCCWNIMPCHLWTXYHCGGELVHXCULPXWDCHGGHCFCKSQSHTT | YIEHHQDTWTLWVYEFKBGYJSNUNQYKBTFIXXZGURSMEKBCCWNIMPCHLWTXYHCGGELVHXCULPXWDCHGGHCFCKSQSHTT | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0050 | ANWGATVAAZAWEFQTVGEQTVQKZNLFMKDVMEKFNALDQRNPUZPHSNXZAKFIOQGUPYMBXROZ | ANWGATVAAZAWEFQTVGEQTVQKZNLFMKDVMEKFNALDQRNPUZPHSNXZAKFIOQGUPYMBXROZ | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
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