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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
atbash-v2-0016 | XLEVI NB IVGIVZG | XLEVI NB IVGIVZG | COVER MY RETREAT | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0287 | DAGHIBUXEDGJ | DAGHIBUXEDGJ | IN GOD WE TRUST | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0144 | 43 36 67 37 70 65 48 46 27 46 47 46 66 77 42 40 39 37 47 54 76 54 58 29 26 36 65 76 56 36 47 28 49 53 77 55 49 59 67 39 57 49 76 36 29 26 59 54 76 63 36 47 26 40 63 49 45 56 37 38 40 84 80 76 36 47 28 49 54 56 53 | 43 36 67 37 70 65 48 46 27 46 47 46 66 77 42 40 39 37 47 54 76 54 58 29 26 36 65 76 56 36 47 28 49 53 77 55 49 59 67 39 57 49 76 36 29 26 59 54 76 63 36 47 26 40 63 49 45 56 37 38 40 84 80 76 36 47 28 49 54 56 53 | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 142 | 212 | cipher_museum | 2.0 | public | null | null |
cda-0003584 | PNRFNE FUVSGRQ GUR NYCUNORG OL GUERR CBFVGVBAF | PNRFNE FUVSGRQ GUR NYCUNORG OL GUERR CBFVGVBAF | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
vigenere-es-038 | PPCIRYSXZBCEZCZLQM | PPCIRYSXZBCEZCZLQM | EL QUE NO LLORA NO MAMA | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "LEMON"
} | intermediate | es | 18 | 18 | cipher_museum | 0.2 | public | null | null |
vigenere-v3-0857 | HYEVWHTJLROQCIS | HYEVWHTJLROQCIS | CHART THE UNKNOWN | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0184 | ADGDFDFAGXDGAAAXAFFDADDAGDAFGDDAADGADDFAADDXAGFGDAGDGADGGAXAGADAAAFGAFAAGXDAGAGDAGDAGADAXFDAFXFGDXADGGXDDDXDAFDGFGGAXGDFFGXXAGXGFFXGAGAAGAXAADFDAGAXAXADAGAXAFDFADAXADDXGDAFAXADDDDDGFGFGGDXFGAFFXAAGFAXGGFAGFGAAFADDDAAXDFAADGXGAFDGXGAAAAAXADDADGFGGDADFGGADDDAAAAADGXADDAADDGGADGFAXFXGXGGAGXDFGGDDXDAAADGDFGADADGFGAAGAXFGXG... | ADGDFDFAGXDGAAAXAFFDADDAGDAFGDDAADGADDFAADDXAGFGDAGDGADGGAXAGADAAAFGAFAAGXDAGAGDAGDAGADAXFDAFXFGDXADGGXDDDXDAFDGFGGAXGDFFGXXAGXGFFXGAGAAGAXAADFDAGAXAXADAGAXAFDFADAXADDXGDAFAXADDDDDGFGFGGDXFGAFFXAAGFAXGGFAGFGAAFADDDAAXDFAADGXGAFDGXGAAAAAXADDADGFGGDADFGGADDDAAAAADGXADDAADDGGADGFAXFXGXGGAGXDFGGDDXDAAADGDFGADADGFGAAGAXFGXG... | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 322 | 322 | cipher_museum | 2.0 | public | null | null |
cda-0021822 | 5 18 18 15 18 3 15 18 18 5 3 20 9 15 14 1 14 4 4 5 20 5 3 20 9 15 14 1 18 5 6 21 14 4 1 13 5 14 20 1 12 20 15 19 5 3 21 18 5 19 25 19 20 5 13 19 16 1 20 20 5 18 14 23 15 18 4 19 8 5 12 16 2 18 5 1 11 13 15 14 15 1 12 16 8 1 2 5 20 9 3 19 21 2 19 20 9 20 21 20 9 15 14 | 5 18 18 15 18 3 15 18 18 5 3 20 9 15 14 1 14 4 4 5 20 5 3 20 9 15 14 1 18 5 6 21 14 4 1 13 5 14 20 1 12 20 15 19 5 3 21 18 5 19 25 19 20 5 13 19 16 1 20 20 5 18 14 23 15 18 4 19 8 5 12 16 2 18 5 1 11 13 15 14 15 1 12 16 8 1 2 5 20 9 3 19 21 2 19 20 9 20 21 20 9 15 14 | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 103 | 103 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
adfgx-v3-0409 | DGGGDDGGAFDDGGAXAXDXDAXDXDGGFADGXFFXDDAA | DGGGDDGGAFDDGGAXAXDXDAXDXDGGFADGXFFXDDAA | THE REDCOATS ARE COMING | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0050 | 24 33 32 54 12 15 22 24 33 33 24 33 22 24 43 32 54 15 33 14 11 33 14 24 33 32 54 15 33 14 24 43 32 54 12 15 22 24 33 33 24 33 22 11 43 44 23 15 41 45 15 15 33 34 21 43 13 34 44 43 25 33 15 52 52 15 31 31 | 24 33 32 54 12 15 22 24 33 33 24 33 22 24 43 32 54 15 33 14 11 33 14 24 33 32 54 15 33 14 24 43 32 54 12 15 22 24 33 33 24 33 22 11 43 44 23 15 41 45 15 15 33 34 21 43 13 34 44 43 25 33 15 52 52 15 31 31 | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 136 | 203 | cipher_museum | 2.0 | public | null | null |
playfair-371 | KHZUTOLMBVTENKAQPOLMOIXEPIENMEONYFULAQQVTHSY | KHZUTOLMBVTENKAQPOLMOIXEPIENMEONYFULAQQVTHSY | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 44 | 44 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0187 | RAMDTOGBFCEHZRBIFZAVGFPRLVVYKBBWNPCAKCHUTWWUFFLFRVFVRCEBFCVVPOLDELCSIOLV | RAMDTOGBFCEHZRBIFZAVGFPRLVVYKBBWNPCAKCHUTWWUFFLFRVFVRCEBFCVVPOLDELCSIOLV | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0060 | AIFTKXBJ+MCRXJOFUPCOBDCEJDDG+MJPZOYYRYSIQIPJVP+OVUSCQVOYSPPWCGZCHVGZU | AIFTKXBJ+MCRXJOFUPCOBDCEJDDG+MJPZOYYRYSIQIPJVP+OVUSCQVOYSPPWCGZCHVGZU | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
purple-121 | BPRCEMGWRJAI | BPRCEMGWRJAI | ATTACK AT DAWN | purple | purple | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v2-0306 | ADLQLSXAEMSCAJTGBQLYFWMTRGMQQOMTRWSPFLCIYVFXUSXPWJLZMKJRBGUASPENXYLUWFIDPYQ | ADLQLSXAEMSCAJTGBQLYFWMTRGMQQOMTRWSPFLCIYVFXUSXPWJLZMKJRBGUASPENXYLUWFIDPYQ | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0013818 | ⟨a29⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨a19⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a01⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨a13⟩ ⟨a19⟩ ⟨w10⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w... | ⟨a29⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨a19⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a01⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨a13⟩ ⟨a19⟩ ⟨w10⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | babington | babington | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
chaocipher-130 | OWJCLHAHLAHLWRYDYLEYK | OWJCLHAHLAHLWRYDYLEYK | THE PACKAGE IS DELIVERED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0012962 | JVBZL LTLWJ OHAON UPJLI BFHZK YTRON CMPLJ DMEJT EVINN LJEJF BBCFH LBEEC JSKTK NCZHV MTUDY RGFMM QLIWE CVOOI KENBM RHJKI YBSKT SVAVO YTCUV VTQKD XONAM WZDMT MTYFY LZRNC KUXXF Y | JVBZL LTLWJ OHAON UPJLI BFHZK YTRON CMPLJ DMEJT EVINN LJEJF BBCFH LBEEC JSKTK NCZHV MTUDY RGFMM QLIWE CVOOI KENBM RHJKI YBSKT SVAVO YTCUV VTQKD XONAM WZDMT MTYFY LZRNC KUXXF Y | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY | one_time_pad | one_time_pad | null | {} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
geez-monastic-065 | XFOWKPTXUTWSOPI | XFOWKPTXUTWSOPI | THE COAST IS CLEAR | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
hill-v2-0029 | TETGZVAOKZLDESZKXTXZFV | TETGZVAOKZLDESZKXTXZFV | PATIENCE BRINGS VICTORY | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0006419 | CNEIE DIIHE TOREL WCENL RENAS OLPDK REIRF IOYSX BKPOE TPRES OUMSC YERYS UHEIX XUYER EMOVO OINAT LRIDA ASRWS XXSOU QRTUE DUIRT OMEWC TCUSR QXXUD EAHEI ARNNR ARSPN BRTRS PAX | CNEIE DIIHE TOREL WCENL RENAS OLPDK REIRF IOYSX BKPOE TPRES OUMSC YERYS UHEIX XUYER EMOVO OINAT LRIDA ASRWS XXSOU QRTUE DUIRT OMEWC TCUSR QXXUD EAHEI ARNNR ARSPN BRTRS PAX | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | stager_route | stager_route | null | {
"cols": 11
} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
argenti-v2-0322 | 12 13 29 75 20 42 59 11 77 63 86 28 44 38 11 43 28 27 18 69 77 11 75 20 28 41 39 27 57 33 87 42 29 44 75 59 11 37 48 65 42 69 24 58 63 64 61 87 33 45 13 65 75 63 41 29 86 28 68 25 46 20 87 18 37 11 77 88 69 29 27 | 12 13 29 75 20 42 59 11 77 63 86 28 44 38 11 43 28 27 18 69 77 11 75 20 28 41 39 27 57 33 87 42 29 44 75 59 11 37 48 65 42 69 24 58 63 64 61 87 33 45 13 65 75 63 41 29 86 28 68 25 46 20 87 18 37 11 77 88 69 29 27 | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 142 | 212 | cipher_museum | 2.0 | public | null | null |
cda-0013436 | 12.49.6 5.45.15 11.2.9 7.45.2 19.48.13 2.10.15 1.37.14 6.11.14 4.24.12 17.48.1 16.19.4 3.33.10 19.8.12 9.34.10 12.16.1 18.3.4 10.14.6 8.27.14 13.19.14 10.6.2 10.48.11 3.26.10 13.4.9 20.11.9 14.17.3 8.19.5 6.17.15 1.47.14 10.32.15 15.20.4 20.9.11 2.8.11 10.19.4 11.5.13 19.24.14 2.49.15 8.21.6 8.16.14 7.18.3 12.18.4 13.2... | 12.49.6 5.45.15 11.2.9 7.45.2 19.48.13 2.10.15 1.37.14 6.11.14 4.24.12 17.48.1 16.19.4 3.33.10 19.8.12 9.34.10 12.16.1 18.3.4 10.14.6 8.27.14 13.19.14 10.6.2 10.48.11 3.26.10 13.4.9 20.11.9 14.17.3 8.19.5 6.17.15 1.47.14 10.32.15 15.20.4 20.9.11 2.8.11 10.19.4 11.5.13 19.24.14 2.49.15 8.21.6 8.16.14 7.18.3 12.18.4 13.2... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY NEVER | book_cipher | book_cipher | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
diana-v3-0431 | MKAMVKGBQAYVBU | MKAMVKGBQAYVBU | THE SIEGE BEGINS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
porta-v3-0143 | LWXRGGNEONTFEVBJORESE | LWXRGGNEONTFEVBJORESE | THE EXPERIMENT CONFIRMS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "RENAISSANCE"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0445 | JGBXQFQUTUGYSIBBJAZBGHQDQFVGBMFQMLMEVYPCSYLJPXFDWQRKMXKKWTNYUMRLMBFVVDNRJPV | JGBXQFQUTUGYSIBBJAZBGHQDQFVGBMFQMLMEVYPCSYLJPXFDWQRKMXKKWTNYUMRLMBFVVDNRJPV | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
affine-v3-1426 | SP LUQP PQYNAV HV RPL BPLES YHGN QYNZ SP LUQP RPL QYTV TV QYN DPESNU ALEN PI HEE ANETDTPUV | SP LUQP PQYNAV HV RPL BPLES YHGN QYNZ SP LUQP RPL QYTV TV QYN DPESNU ALEN PI HEE ANETDTPUV | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 72 | 90 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0588 | MNJWWVBIERIEYMWTRIDUMOINAORLIEMOFJRJIIGLEBYINDZDUKTCOFKAQUMARVGUUGTTDYVEGYHFPVHGEDJ | MNJWWVBIERIEYMWTRIDUMOINAORLIEMOFJRJIIGLEBYINDZDUKTCOFKAQUMARVGUUGTTDYVEGYHFPVHGEDJ | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0009732 | TOVN QYBFRR WF O CBFGHER ABG O FYBUOA GUR ZSFFOTS JOF UVRRRA PHG ABG FRQHES GEOAFCBFWGVBA PWCUSEF ESOEEOAUR YRGGSEF JVGVBHG FHPFGVGHGVBA COGGSEA JBERF USYC PEROX ZBABOYCVONSGVQ FHPFGWGHGWBA | TOVN QYBFRR WF O CBFGHER ABG O FYBUOA GUR ZSFFOTS JOF UVRRRA PHG ABG FRQHES GEOAFCBFWGVBA PWCUSEF ESOEEOAUR YRGGSEF JVGVBHG FHPFGVGHGVBA COGGSEA JBERF USYC PEROX ZBABOYCVONSGVQ FHPFGWGHGWBA | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE MESSAGE WAS HIDDEN BUT NOT SECURE TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | porta | porta | null | {
"key": "SECURE"
} | hard | en | 163 | 163 | synthetic_educational | null | null | [] | |
double-transposition-165 | ICECHBEEGAPFHAINWTGRDUENIOVTTEATHTYOHETITTSONA | ICECHBEEGAPFHAINWTGRDUENIOVTTEATHTYOHETITTSONA | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | double_transposition | double_transposition | transposition | {
"key1": "ENEMY",
"key2": "CIPHER"
} | advanced | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
nihilist-v3-0192 | 38 26 88 56 58 36 54 45 26 59 35 26 50 75 55 56 88 63 | 38 26 88 56 58 36 54 45 26 59 35 26 50 75 55 56 88 63 | CROSS THE RUBICON NOW | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
m209-v3-0374 | JWZZBLLUZQZCMVMFWQOCYXYWQJWYLTVAMBDRLZYQZUDPAYNMYQJLSOQLVNWQQVRAKYAPBPOJD | JWZZBLLUZQZCMVMFWQOCYXYWQJWYLTVAMBDRLZYQZUDPAYNMYQJLSOQLVNWQQVRAKYAPBPOJD | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0445 | MJRTRDVGKQXJQQEVGKWPVWB | MJRTRDVGKQXJQQEVGKWPVWB | THE REDCOATS ARE COMING | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
diana-v3-0444 | CDRLYGVBYWTSQYLZAAKHIJKWLZW | CDRLYGVBYWTSQYLZAAKHIJKWLZW | DONT FIRE TILL YOU SEE THE WHITES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0403 | PLBXNFPLRBEOEFZUCYKFZRDIEY | PLBXNFPLRBEOEFZUCYKFZRDIEY | THE SHOT HEARD ROUND THE WORLD | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
beaufort-la-061 | GAJMMOZYNMPMEKATAWH | GAJMMOZYNMPMEKATAWH | VERITAS VOS LIBERABIT | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "BEAUFORT"
} | intermediate | la | 19 | 19 | cipher_museum | 0.2 | public | null | null |
cda-0016325 | 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 1 20 18 1 14 19 16 1 18 5 14 20 20 15 15 12 19 8 15 21 12 4 19 8 15 23 9 20 19 18 5 1 19 15 14 9 14 7 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 14 20 15 5 1 3 8 12 5... | 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 1 20 18 1 14 19 16 1 18 5 14 20 20 15 15 12 19 8 15 21 12 4 19 8 15 23 9 20 19 18 5 1 19 15 14 9 14 7 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 14 20 15 5 1 3 8 12 5... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
chinese-telegraph-v3-0152 | 7338 7194 7911 7911 7974 7467 7720 8528 7654 7974 7194 7467 7911 8528 8100 7974 7467 9003 7467 7194 8437 8528 7194 7590 8100 8038 7467 8781 7467 8437 7974 7720 8038 7401 7654 8100 8854 7911 8100 8038 7590 8206 8437 7467 7338 7720 8528 7467 7911 9003 7720 8603 7654 8100 8685 7590 7654 8603 7720 8854 8100 8685 7911 7401 ... | 7338 7194 7911 7911 7974 7467 7720 8528 7654 7974 7194 7467 7911 8528 8100 7974 7467 9003 7467 7194 8437 8528 7194 7590 8100 8038 7467 8781 7467 8437 7974 7720 8038 7401 7654 8100 8854 7911 8100 8038 7590 8206 8437 7467 7338 7720 8528 7467 7911 9003 7720 8603 7654 8100 8685 7590 7654 8603 7720 8854 8100 8685 7911 7401 ... | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 348 | 434 | cipher_museum | 2.0 | public | null | null |
typex-v3-0118 | PKNGYQOBHAERFECINQ | PKNGYQOBHAERFECINQ | LOWER THE DRAWBRIDGE | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0189 | CNRKSNRQIFFSFSICWMLNHIINEOEKVHLQOBOYTFIRSRSBNGDOMIEPLPKDIZTKPYNIIHZHQEZBOIRNV | CNRKSNRQIFFSFSICWMLNHIINEOEKVHLQOBOYTFIRSRSBNGDOMIEPLPKDIZTKPYNIIHZHQEZBOIRNV | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0351 | ASIIJAJHDIQYWSYDIQRJUGCEGDNHHMMVZUUWLUUQWAPJAGJFDPZEVPSWSKXEAHXHDARDOLNDA | ASIIJAJHDIQYWSYDIQRJUGCEGDNHHMMVZUUWLUUQWAPJAGJFDPZEVPSWSKXEAHXHDARDOLNDA | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0017336 | JCGRZZMOKBUZUGSTJROZHCHAMCSEVCIZTGGZXNQPPVWNAPKZGBRQDXNQVPJHOHIBDLLYXJYCLDWRFROICPJMTURYVIRENLSGZ | JCGRZZMOKBUZUGSTJROZHCHAMCSEVCIZTGGZXNQPPVWNAPKZGBRQDXNQVPJHOHIBDLLYXJYCLDWRFROICPJMTURYVIRENLSGZ | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | one_time_pad | one_time_pad | null | {} | hard | en | 97 | 97 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
bazeries-v2-0226 | BSTFOYTNIYQOJFXJYQOOOOJIJIYQIJOOTMTKJNJPOJFOSYQLIYSBJCTWBEFYYJFYIMYPJ | BSTFOYTNIYQOJFXJYQOOOOJIJIYQIJOOTMTKJNJPOJFOSYQLIYSBJCTWBEFYYJFYIMYPJ | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0012715 | troop hours early march extra shore stage array given extra while along seeks heads input draft depth exact needs basis units takes notes often turns | troop hours early march extra shore stage array given extra while along seeks heads input draft depth exact needs basis units takes notes often turns | THE MESSAGE WAS HIDDEN BUT NOT SECURE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER CAREFULLY | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
cda-0021360 | AAAAA BAABA BAAAA AAAAA ABBAA BAAAB ABBBA AAAAA BAAAA AABAA ABBAA BAABA BAABA ABBAB ABBAB ABABA BAAAB AABBB ABBAB BAABB ABABA AAABB BAAAB AABBB ABBAB BABAA ABAAA BAABA BAAAB BAAAA AABAA AAAAA BAAAB ABBAB ABBAA ABAAA ABBAA AABBA AABAA BAAAA BAAAA ABBAB BAAAA AAABA ABBAB BAAAA BAAAA AABAA AAABA BAABA ABAAA ABBAB ABBAA AA... | AAAAA BAABA BAAAA AAAAA ABBAA BAAAB ABBBA AAAAA BAAAA AABAA ABBAA BAABA BAABA ABBAB ABBAB ABABA BAAAB AABBB ABBAB BAABB ABABA AAABB BAAAB AABBB ABBAB BABAA ABAAA BAABA BAAAB BAAAA AABAA AAAAA BAAAB ABBAB ABBAA ABAAA ABBAA AABBA AABAA BAAAA BAAAA ABBAB BAAAA AAABA ABBAB BAAAA BAAAA AABAA AAABA BAABA ABAAA ABBAB ABBAA AA... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | bacon_cipher | bacon_cipher | null | {} | hard | en | 695 | 695 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
chaocipher-v3-0134 | PSDOKWXWTNALRWQRHHBDZFYCVACPG | PSDOKWXWTNALRWQRHHBDZFYCVACPG | TAXATION WITHOUT REPRESENTATION | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0055 | 19 03 09 05 14 03 05 23 09 20 08 15 21 20 18 05 12 09 07 09 15 14 09 19 12 01 13 05 61 18 05 12 09 07 09 15 14 23 09 20 08 15 21 20 19 03 09 05 14 03 05 09 19 02 12 09 14 04 19 01 09 04 01 12 02 05 18 20 05 09 14 19 20 05 09 14 | 19 03 09 05 14 03 05 23 09 20 08 15 21 20 18 05 12 09 07 09 15 14 09 19 12 01 13 05 61 18 05 12 09 07 09 15 14 23 09 20 08 15 21 20 19 03 09 05 14 03 05 09 19 02 12 09 14 04 19 01 09 04 01 12 02 05 18 20 05 09 14 19 20 05 09 14 | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 152 | 227 | cipher_museum | 2.0 | public | null | null |
geez-monastic-201 | KOEAPQCMEQZZEVFPEC | KOEAPQCMEQZZEVFPEC | THE BRIDGE IS SECURED | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0018980 | 1021 05746 7889 5106 06377 04736 2248 5713 00366 5082 2587 7894 5685 01617 07227 00352 5663 01335 05975 05120 00404 6373 2880 1654 4472 01017 01663 0350 4449 1268 01001 00331 05705 01645 01923 6677 3810 06323 2531 2923 4426 03546 2906 4429 2198 0998 03867 00357 6009 05987 2833 00962 00347 3864 1038 2826 05067 02557 165... | 1021 05746 7889 5106 06377 04736 2248 5713 00366 5082 2587 7894 5685 01617 07227 00352 5663 01335 05975 05120 00404 6373 2880 1654 4472 01017 01663 0350 4449 1268 01001 00331 05705 01645 01923 6677 3810 06323 2531 2923 4426 03546 2906 4429 2198 0998 03867 00357 6009 05987 2833 00962 00347 3864 1038 2826 05067 02557 165... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | zimmermann | zimmermann | null | {} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
trifid-v2-0213 | TQXICPVTRGAGFTLTXFLGEIPVR+WAHPCGIHOORBLYFOADCESAHFTETWM+WTHDHHXMDUTHUMEMETTE | TQXICPVTRGAGFTLTXFLGEIPVR+WAHPCGIHOORBLYFOADCESAHFTETWM+WTHDHHXMDUTHUMEMETTE | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0136 | RFEBVTBTAIFOWTBZIBZMS | RFEBVTBTAIFOWTBZIBZMS | BRIDGE DESTROYED AT DAWN | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
porta-252 | UXDSYJYWJOSUFUWS | UXDSYJYWJOSUFUWS | CIPHER KEY CHANGED | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0317 | SOUNSDTTEHPEMTUR | SOUNSDTTEHPEMTUR | SOUND THE TRUMPETS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0019678 | 801 999 859 852 800 840 856 846 801 852 814 841 857 999 858 844 844 833 999 854 823 842 862 835 810 999 855 823 843 868 999 824 858 854 999 853 812 800 854 842 840 824 839 818 999 810 842 860 805 835 814 999 858 852 800 840 854 845 844 855 825 857 826 843 840 999 801 847 847 835 824 812 855 999 806 844 835 861 837 840 ... | 801 999 859 852 800 840 856 846 801 852 814 841 857 999 858 844 844 833 999 854 823 842 862 835 810 999 855 823 843 868 999 824 858 854 999 853 812 800 854 842 840 824 839 818 999 810 842 860 805 835 814 999 858 852 800 840 854 845 844 855 825 857 826 843 840 999 801 847 847 835 824 812 855 999 806 844 835 861 837 840 ... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | culper_ring | culper_ring | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
adfgvx-v3-0470 | GFVAFAADGGGDAFDDDFDFAAFDVAFGVDGDDFXVDGVFGFVFDDAFDDDAVAAAFDAAAFAFFDDAXGDGVGXVXXFVGFVVFDVDGDDVDXVDGAXVFXGFGXVVVGXVDDFGFAAAFDAFFGAFFFGFGFGF | GFVAFAADGGGDAFDDDFDFAAFDVAFGVDGDDFXVDGVFGFVFDDAFDDDAVAAAFDAAAFAFFDDAXGDGVGXVXXFVGFVVFDVDGDDVDXVDGAXVFXGFGXVVVGXVDDFGFAAAFDAFFGAFFFGFGFGF | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0140 | Q3 E4 B6 R3 H1 G4 X3 P0 F5 S8 C7 G6 O2 F7 L7 D6 G3 C7 | Q3 E4 B6 R3 H1 G4 X3 P0 F5 S8 C7 G6 O2 F7 L7 D6 G3 C7 | GRAVITY EXPLAINS ALL | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 36 | 53 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-082 | 90 11 78 27 89 31 91 90 28 72 87 24 70 19 53 91 90 69 87 88 30 53 76 91 | 90 11 78 27 89 31 91 90 28 72 87 24 70 19 53 91 90 69 87 88 30 53 76 91 | AWAIT FURTHER ORDERS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 48 | 71 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v3-0049 | 0538 1421 1672 0012 1346 0012 0074 1255 0538 0408 0472 1421 0156 0918 0729 0219 0219 0012 1821 0538 0856 0012 1024 1255 0538 0729 0012 0856 0219 1421 0472 0285 0156 0729 0918 0156 0667 1346 1672 0285 1255 0285 1346 1421 1255 0538 0667 0538 0856 0408 1421 0472 0538 1255 1421 0285 0285 0856 0012 0156 1255 0918 1346 1346 ... | 0538 1421 1672 0012 1346 0012 0074 1255 0538 0408 0472 1421 0156 0918 0729 0219 0219 0012 1821 0538 0856 0012 1024 1255 0538 0729 0012 0856 0219 1421 0472 0285 0156 0729 0918 0156 0667 1346 1672 0285 1255 0285 1346 1421 1255 0538 0667 0538 0856 0408 1421 0472 0538 1255 1421 0285 0285 0856 0012 0156 1255 0918 1346 1346 ... | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 284 | 354 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0285 | RXUDAXBIGCHFCO | RXUDAXBIGCHFCO | ANNUIT COEPTIS | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0012424 | - .... . / .- ..- - --- -.- . -.-- / -.-. .. .--. .... . .-. / . -..- - . -. -.. ... / - .... . / -.- . -.-- / .-- .. - .... / - .... . / .--. .-.. .- .. -. - . -..- - / .. - ... . .-.. ..-. / - .... . / . -. .. --. -- .- / -- .- -.-. .... .. -. . / ..- ... . -.. / .-. --- - --- .-. ... / - --- / -.-. .-. . .- - . / .-... | - .... . / .- ..- - --- -.- . -.-- / -.-. .. .--. .... . .-. / . -..- - . -. -.. ... / - .... . / -.- . -.-- / .-- .. - .... / - .... . / .--. .-.. .- .. -. - . -..- - / .. - ... . .-.. ..-. / - .... . / . -. .. --. -- .- / -- .- -.-. .... .. -. . / ..- ... . -.. / .-. --- - --- .-. ... / - --- / -.-. .-. . .- - . / .-... | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE INDEX OF COINCIDENCE IS A USEFUL CLUE | morse_code | morse_code | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
joseon-yeokhak-v2-0168 | HVSQCIFGSCTHFISZCJSBSJSFRWRFIBGACCHVHVFCIUVOUSG | HVSQCIFGSCTHFISZCJSBSJSFRWRFIBGACCHVHVFCIUVOUSG | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "JOSEON"
} | beginner | en | 47 | 47 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0291 | ZEROKNOWLEDGEPROOFSALLOWONEPARTYTOPROVEKNOWLEDGEWITHOUTREVEALINGTHEKNOWLEDGEITSELF | ZEROKNOWLEDGEPROOFSALLOWONEPARTYTOPROVEKNOWLEDGEWITHOUTREVEALINGTHEKNOWLEDGEITSELF | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
cda-0006286 | ATEBX FRLQB KCAQI HUUTR MKWOR ZNTVR ISIYG YDXQF GPWVK MBZWO AGIUG FXZXL AQYFX QAPAV EBMPO BFZRE GUGFX LNDVW K | ATEBX FRLQB KCAQI HUUTR MKWOR ZNTVR ISIYG YDXQF GPWVK MBZWO AGIUG FXZXL AQYFX QAPAV EBMPO BFZRE GUGFX LNDVW K | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CAREFULLY | trithemius | trithemius | null | {} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
playfair-vf-0033 | SMTIGSISHGEMEKHVENHYCESMCTKBFKCW | SMTIGSISHGEMEKHVENHYCESMCTKBFKCW | THE MATHEMATICIAN SOLVES THE RIDDLE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
m94-v2-0112 | JWCCVRCVQSPYW | JWCCVRCVQSPYW | THE PASS IS HELD | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
hill-v3-0322 | NVXPKTSJAABVSNXP | NVXPKTSJAABVSNXP | PER ASPERA AD ASTRA | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0016966 | ⟨w08⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a01⟩ ⟨w14⟩ ⟨w08⟩ ⟨a07⟩ ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w22⟩ ⟨w22⟩ ⟨w32⟩ ⟨a23⟩ ⟨w40⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w22⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w14⟩ ⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨w22⟩ ⟨w10⟩ ⟨a11⟩ ⟨w20⟩ ⟨w34⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w26⟩ ⟨w08⟩ ⟨a25⟩ ⟨a11⟩ ⟨w08⟩ ⟨w22⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w... | ⟨w08⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a01⟩ ⟨w14⟩ ⟨w08⟩ ⟨a07⟩ ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w22⟩ ⟨w22⟩ ⟨w32⟩ ⟨a23⟩ ⟨w40⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w22⟩ ⟨a11⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w14⟩ ⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨w22⟩ ⟨w10⟩ ⟨a11⟩ ⟨w20⟩ ⟨w34⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w26⟩ ⟨w08⟩ ⟨a25⟩ ⟨a11⟩ ⟨w08⟩ ⟨w22⟩ ⟨a29⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w... | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG ATBASH ENCODES BY REVERSING THE ALPHABET POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | babington | babington | null | {} | hard | en | 168 | 168 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0014854 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a17⟩ ⟨w20⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w28⟩ ⟨a17⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w22⟩ ⟨a11⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w20⟩ ⟨w04⟩ ⟨w08⟩ ⟨w38⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w32⟩ ⟨w04⟩ ⟨w22⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w10⟩ ⟨w26⟩ ⟨a19⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a17⟩ ⟨w20⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w28⟩ ⟨a17⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w22⟩ ⟨a11⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨w20⟩ ⟨w04⟩ ⟨w08⟩ ⟨w38⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w32⟩ ⟨w04⟩ ⟨w22⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w10⟩ ⟨w26⟩ ⟨a19⟩ ⟨w... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS TODAY | babington | babington | null | {} | hard | en | 202 | 202 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0017350 | 6371 02604 01669 1895 5677 02845 01661 01271 04107 0365 4402 06339 1614 06012 06301 06659 6052 1592 6057 6320 02600 1612 2838 04477 01310 01658 7591 04762 1889 0996 4808 02865 4398 1012 02904 01334 1655 04492 1006 01656 06347 4754 01622 06064 6280 2833 4164 0344 6330 1583 3506 01629 07930 03832 01600 4479 02270 6351 25... | 6371 02604 01669 1895 5677 02845 01661 01271 04107 0365 4402 06339 1614 06012 06301 06659 6052 1592 6057 6320 02600 1612 2838 04477 01310 01658 7591 04762 1889 0996 4808 02865 4398 1012 02904 01334 1655 04492 1006 01656 06347 4754 01622 06064 6280 2833 4164 0344 6330 1583 3506 01629 07930 03832 01600 4479 02270 6351 25... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | zimmermann | zimmermann | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0019235 | 819 852 843 841 856 817 814 835 810 999 860 856 813 855 999 801 999 809 825 820 824 859 999 856 813 850 860 813 839 806 812 999 801 855 999 857 823 814 999 851 814 847 813 801 858 824 841 820 999 831 814 874 999 | 819 852 843 841 856 817 814 835 810 999 860 856 813 855 999 801 999 809 825 820 824 859 999 856 813 850 860 813 839 806 812 999 801 855 999 857 823 814 999 851 814 847 813 801 858 824 841 820 999 831 814 874 999 | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | culper_ring | culper_ring | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0021572 | ⟨a23⟩ ⟨w08⟩ ⟨w32⟩ ⟨a01⟩ ⟨w14⟩ ⟨a01⟩ ⟨w10⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨a25⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w08⟩ ⟨w22⟩ ⟨a01⟩ ⟨w10⟩ ⟨w26⟩ ⟨w08⟩ ⟨a07⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨a11⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a... | ⟨a23⟩ ⟨w08⟩ ⟨w32⟩ ⟨a01⟩ ⟨w14⟩ ⟨a01⟩ ⟨w10⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨a25⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨w08⟩ ⟨w22⟩ ⟨a01⟩ ⟨w10⟩ ⟨w26⟩ ⟨w08⟩ ⟨a07⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨a11⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a... | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | babington | babington | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0012112 | 842 804 854 812 853 865 802 803 834 813 999 814 863 824 810 812 839 807 814 999 806 843 838 814 856 999 803 812 815 844 851 813 999 807 843 839 817 826 809 813 841 808 812 999 814 840 858 852 844 845 873 999 836 814 801 855 860 851 814 856 999 862 841 807 814 853 857 802 824 840 859 872 999 826 841 999 800 999 809 824 ... | 842 804 854 812 853 865 802 803 834 813 999 814 863 824 810 812 839 807 814 999 806 843 838 814 856 999 803 812 815 844 851 813 999 807 843 839 817 826 809 813 841 808 812 999 814 840 858 852 844 845 873 999 836 814 801 855 860 851 814 856 999 862 841 807 814 853 857 802 824 840 859 872 999 826 841 999 800 999 809 824 ... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | culper_ring | culper_ring | null | {} | hard | en | 118 | 118 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
stager-route-v2-0441 | FDTLESSHHVYHTORHESEAXXLROGEGOWANBLXXNETVODSREHLOXXTIAHLOLDITEPXXEVWSTOVHOHERXXISONAE | FDTLESSHHVYHTORHESEAXXLROGEGOWANBLXXNETVODSREHLOXXTIAHLOLDITEPXXEVWSTOVHOHERXXISONAE | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | stager_route | stager_route | transposition | {
"type": "integer",
"value": 12
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0264 | SVZVHJECFISUDDRUEDU | SVZVHJECFISUDDRUEDU | MISSION ACCOMPLISHED | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0277 | ITCUSAPKSKXCJX | ITCUSAPKSKXCJX | TRUST BUT VERIFY | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0606 | LATUCDEVNSSXILELEFNOFEEXBIRASITLRDPXETNMMNLUAETXRFIOOIATNMXXTRTRTSRIAIXXGAOTSSEOILXX | LATUCDEVNSSXILELEFNOFEEXBIRASITLRDPXETNMMNLUAETXRFIOOIATNMXXTRTRTSRIAIXXGAOTSSEOILXX | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | scytale | scytale | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
enigma-028 | FUZBLWHYHNNFBNS | FUZBLWHYHNNFBNS | EVACUATE THE BASE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAA"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
vic-169 | 590905783590805931 | 590905783590805931 | ATTACK AT DAWN | vic | vic | substitution | {
"type": "keyword",
"value": "ENIGMA"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
vic-107 | 186903474821868618682936899034938758068680903493875809368993190382878068680819184848781825604 | 186903474821868618682936899034938758068680903493875809368993190382878068680819184848781825604 | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | vic | vic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 93 | 93 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0058 | IRURNYIQHRAYRDGJAHSFTILJIADYLQVTOOJFSLHJVRGEXOJFTIXQJOJARVENTUROJSDO | IRURNYIQHRAYRDGJAHSFTILJIADYLQVTOOJFSLHJVRGEXOJFTIXQJOJARVENTUROJSDO | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0225 | BNDGOTTXDTXTQWCOTGHDXMICSLZBQFNWERCGANMYOAMBGXIRYNGMTCGCEHZLZMOOWQVROCMKN | BNDGOTTXDTXTQWCOTGHDXMICSLZBQFNWERCGANMYOAMBGXIRYNGMTCGCEHZLZMOOWQVROCMKN | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0235 | MHSSASIYFFUWOCUCVPILYTWSNXGOZWDAOCXBMQMZJKCUILLGIKASKMDRFCYTASHMLVFCUCHBUHCAYSYPHRXASAPTFCXQSSILUGUCDZDPOTLMDAOCVTTTBZFFSSASURNXKGHDLGEVULIQYTNXRXMDXIHYSBZHJTPWPTCB | MHSSASIYFFUWOCUCVPILYTWSNXGOZWDAOCXBMQMZJKCUILLGIKASKMDRFCYTASHMLVFCUCHBUHCAYSYPHRXASAPTFCXQSSILUGUCDZDPOTLMDAOCVTTTBZFFSSASURNXKGHDLGEVULIQYTNXRXMDXIHYSBZHJTPWPTCB | 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 | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0021 | - .... . / .--. .-. .. -. - .. -. --. / .--. .-. . ... ... / -.-. .... .- -. --. . ... / .- .-.. .-.. | - .... . / .--. .-. .. -. - .. -. --. / .--. .-. . ... ... / -.-. .... .- -. --. . ... / .- .-.. .-.. | THE PRINTING PRESS CHANGES ALL | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 72 | 101 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0361 | D4 V3 V0 U9 S6 V7 E0 H0 L0 J3 S6 K8 W4 C5 V7 U2 Z2 G3 B9 V6 S6 M8 H9 F9 K5 A3 U0 E0 T2 O2 H0 Y8 I4 V4 P9 K6 W9 K5 Q5 A7 T2 A6 P6 Y8 B9 T2 C1 N6 P6 G0 S6 V7 M7 M4 D6 A4 J9 J6 E3 S9 R7 Y0 E6 J4 F1 L0 I5 V2 P3 R7 T2 B8 K2 T2 B8 E3 G0 I0 A2 R7 X4 F9 Z2 P5 E0 E6 A2 A4 S9 V2 K8 O2 W2 Q1 S6 T2 N1 Z2 Y2 S6 U6 B9 U7 P9 E1 J6 B9... | D4 V3 V0 U9 S6 V7 E0 H0 L0 J3 S6 K8 W4 C5 V7 U2 Z2 G3 B9 V6 S6 M8 H9 F9 K5 A3 U0 E0 T2 O2 H0 Y8 I4 V4 P9 K6 W9 K5 Q5 A7 T2 A6 P6 Y8 B9 T2 C1 N6 P6 G0 S6 V7 M7 M4 D6 A4 J9 J6 E3 S9 R7 Y0 E6 J4 F1 L0 I5 V2 P3 R7 T2 B8 K2 T2 B8 E3 G0 I0 A2 R7 X4 F9 Z2 P5 E0 E6 A2 A4 S9 V2 K8 O2 W2 Q1 S6 T2 N1 Z2 Y2 S6 U6 B9 U7 P9 E1 J6 B9... | 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 | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 328 | 491 | cipher_museum | 2.0 | public | null | null |
cda-0009825 | PTSLTUIYDOTOIEPSSOPUOHLCMHDENTCLEYCUAOOWIASIAILBNBIOTERLPTEOFTNIXLPHITTUHGOPIHEPSCSEONLMARLHOCNOAAIBSEINACDLITEUAFFTRETNS | PTSLTUIYDOTOIEPSSOPUOHLCMHDENTCLEYCUAOOWIASIAILBNBIOTERLPTEOFTNIXLPHITTUHGOPIHEPSCSEONLMARLHOCNOAAIBSEINACDLITEUAFFTRETNS | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | scytale | scytale | null | {
"cols": 11
} | hard | en | 121 | 121 | synthetic_educational | null | null | [] | |
cda-0012704 | 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· ⌣ ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· K r· L └ Γ· ¬ ┌· ⌐ ┌· ⌒· ┐· ┌· L X L ┌· K· L X ┐ ─ ┘· ⌒ └ L Γ ¬· L ⌐... | 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· ⌣ ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· K r· L └ Γ· ¬ ┌· ⌐ ┌· ⌒· ┐· ┌· L X L ┌· K· L X ┐ ─ ┘· ⌒ └ L Γ ¬· L ⌐... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | pigpen | pigpen | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
trithemius-098 | TIG UIUUYBB YQ YL RTQKZ AUQA YCDN HTHEYRF MGKRSRFPJVV | TIG UIUUYBB YQ YL RTQKZ AUQA YCDN HTHEYRF MGKRSRFPJVV | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | trithemius | trithemius | polyalphabetic | {
"type": "offset",
"value": 0
} | beginner | en | 45 | 53 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0447 | DVFXGFGFAFGDGDDFFXAGFFDAGDDAVDVAVAVVFAXAVDFVGXAGADDXAFAXAVFAADGVAXFFAVDAFVDAFAAGAFDGFGDDVDXAFDFADDFDAAXGXFFAAFAXAAAVDXDFAFADVFGFAVAFAADDVXFAAFAFGGAFGFDD | DVFXGFGFAFGDGDDFFXAGFFDAGDDAVDVAVAVVFAXAVDFVGXAGADDXAFAXAVFAADGVAXFFAVDAFVDAFAAGAFDGFGDDVDXAFDFADDFDAAXGXFFAAFAXAAAVDXDFAFADVFGFAVAFAADDVXFAAFAFGGAFGFDD | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0238 | MEASURETWICECUTONCE | MEASURETWICECUTONCE | MEASURE TWICE CUT ONCE | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
vic-073 | 854490690903487848087683 | 854490690903487848087683 | MEET AT THE OLD OAK | vic | vic | substitution | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 24 | 24 | cipher_museum | 0.2 | public | null | null |
cda-0016802 | 20.46.7 14.43.12 10.33.5 3.42.12 16.16.1 2.5.4 2.27.10 9.24.14 18.44.6 10.19.13 15.48.12 16.47.3 13.20.5 17.8.11 12.41.7 14.1.2 18.28.1 7.48.14 4.21.13 7.34.7 2.9.15 19.49.12 13.50.8 19.3.7 12.7.10 5.46.5 18.19.1 15.14.14 4.47.2 7.36.12 17.50.11 16.44.7 5.36.11 16.8.15 18.25.15 7.14.8 15.32.7 2.16.10 1.30.15 19.21.10 1... | 20.46.7 14.43.12 10.33.5 3.42.12 16.16.1 2.5.4 2.27.10 9.24.14 18.44.6 10.19.13 15.48.12 16.47.3 13.20.5 17.8.11 12.41.7 14.1.2 18.28.1 7.48.14 4.21.13 7.34.7 2.9.15 19.49.12 13.50.8 19.3.7 12.7.10 5.46.5 18.19.1 15.14.14 4.47.2 7.36.12 17.50.11 16.44.7 5.36.11 16.8.15 18.25.15 7.14.8 15.32.7 2.16.10 1.30.15 19.21.10 1... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | book_cipher | book_cipher | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0017903 | 68 61 52 43 66 68 57 82 50 61 68 80 69 11 59 61 82 11 20 43 61 65 68 80 66 68 29 61 66 69 82 29 52 80 43 65 66 77 82 61 61 68 25 82 61 68 66 20 68 61 36 82 29 52 69 11 82 61 20 43 80 82 95 82 80 61 50 29 25 66 36 82 68 57 65 36 68 20 82 66 | 68 61 52 43 66 68 57 82 50 61 68 80 69 11 59 61 82 11 20 43 61 65 68 80 66 68 29 61 66 69 82 29 52 80 43 65 66 77 82 61 61 68 25 82 61 68 66 20 68 61 36 82 29 52 69 11 82 61 20 43 80 82 95 82 80 61 50 29 25 66 36 82 68 57 65 36 68 20 82 66 | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES ATBASH ENCODES BY REVERSING THE ALPHABET | wallis_cipher | wallis_cipher | null | {} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
playfair-vf-0045 | VFODSCROPREYBKGQCNVFONMAGQIU | VFODSCROPREYBKGQCNVFONMAGQIU | THE CLOCKMAKER WINDS THE SPRING | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0578 | CTEONPCRTILNUROHYIRBFGLFRCOENSAOKEFTLGNNTMTDTEILATHNREINRBNAHSTTEIEPOEAOHWUEO | CTEONPCRTILNUROHYIRBFGLFRCOENSAOKEFTLGNNTMTDTEILATHNREINRBNAHSTTEIEPOEAOHWUEO | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0013210 | TNLS JIBZ YQZE SPRD IKBO NWYA MEMX NBTV IAHZ FDHQ SVDZ LYMR ICWT ATPR QDJW IMSN IFZJ SEFQ KCTM UXPC HAZG STVT XCOK VBNV NNQ | TNLS JIBZ YQZE SPRD IKBO NWYA MEMX NBTV IAHZ FDHQ SVDZ LYMR ICWT ATPR QDJW IMSN IFZJ SEFQ KCTM UXPC HAZG STVT XCOK VBNV NNQ | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | vernam | vernam | null | {} | hard | en | 99 | 99 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
trifid-v3-0512 | TOVRSTIWWJDCKPSUYPEOHSAGJI+NYUQGVKEECMMUUFZFUJFAQXNNCETJLEKVTCWNEUZMUXVPPONQVGJOXQMRTTKWLLFDWOCDSMYOBWGXFTLEEEQPOOTO+VSTDCSNJISONTT+LUEETKGPTWT+JAQTDJJCKSUJKNXOEUUEQ | TOVRSTIWWJDCKPSUYPEOHSAGJI+NYUQGVKEECMMUUFZFUJFAQXNNCETJLEKVTCWNEUZMUXVPPONQVGJOXQMRTTKWLLFDWOCDSMYOBWGXFTLEEEQPOOTO+VSTDCSNJISONTT+LUEETKGPTWT+JAQTDJJCKSUJKNXOEUUEQ | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
bifid-de-018 | ASCCLHBGBRHHQDVTPQGYWUBBNHRTBTBALZ | ASCCLHBGBRHHQDVTPQGYWUBBNHRTBTBALZ | DAS GEHEIMNIS ALLER MACHT IST DAS WISSEN | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | de | 34 | 34 | cipher_museum | 0.2 | public | null | null |
scytale-v3-0340 | DTRIYSTWTXXOFELOEHHEXXNITLUEEISXX | DTRIYSTWTXXOFELOEHHEXXNITLUEEISXX | DONT FIRE TILL YOU SEE THE WHITES | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 33 | 33 | cipher_museum | 2.0 | public | null | null |
typex-001 | UIENTUUFILZJ | UIENTUUFILZJ | ATTACK AT DAWN | typex | typex | machine | {
"type": "keyword",
"value": "TYPEX"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
m209-v2-0042 | LXXZNMKMXOZLNJZTQIYQAHZJZTCMIPMRPQJXJUNRJVVFWAL | LXXZNMKMXOZLNJZTQIYQAHZJZTCMIPMRPQJXJUNRJVVFWAL | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 47 | 47 | cipher_museum | 2.0 | public | null | null |
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