id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0016443 | EJUBK MVGYC APOVB IPUAL FTXFY UYVEB XVVRV VKZKV QVELS P | EJUBK MVGYC APOVB IPUAL FTXFY UYVEB XVVRV VKZKV QVELS P | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | vernam | vernam | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
m209-v2-0308 | XSQQHSPIIYBLBRGMLZOJVZMNQDGKEUCDIKDKXONRZVXIYQZRVDZOKFRNXWGZQABZBMV | XSQQHSPIIYBLBRGMLZOJVZMNQDGKEUCDIKDKXONRZVXIYQZRVDZOKFRNXWGZQABZBMV | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0425 | AAGGAFAFAAFDDXGFGAFFGADAFDAXAFFXGFADFVVDDGFDAFFAFGFDDAVAFFGVDAAFAVADGFDVDXGFAFGGAGDAAVDFDAAADFGDDDADGFDFGXDGAXGVDDFDFGFAGAXADFFAADFD | AAGGAFAFAAFDDXGFGAFFGADAFDAXAFFXGFADFVVDDGFDAFFAFGFDDAVAFFGVDAAFAVADGFDVDXGFAFGGAGDAAVDFDAAADFGDDDADGFDFGXDGAXGVDDFDFGFAGAXADFFAADFD | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 132 | 132 | cipher_museum | 2.0 | public | null | null |
affine-v3-1307 | BHC BHAR PCJ FARC IBKKJ VAPY EB XEFEQFENE EI BHC PUIIAER QENEFPS QHEPOCJ EQPKII BHC DFEAR | BHC BHAR PCJ FARC IBKKJ VAPY EB XEFEQFENE EI BHC PUIIAER QENEFPS QHEPOCJ EQPKII BHC DFEAR | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 74 | 89 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0650 | QOIJPROI UROBIT AIOI | QOIJPROI UROBIT AIOI | TREASURE BURIED HERE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0332 | YGDVXJGEDWSV | YGDVXJGEDWSV | GOLD FROM LEAD | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0300 | THGRPMXJTKEHRWMOAXSEPCVLBSTJEMEANUQVCGBZTDNGXRTCLYXIMCOHVWZXHQFMOWOQ | THGRPMXJTKEHRWMOAXSEPCVLBSTJEMEANUQVCGBZTDNGXRTCLYXIMCOHVWZXHQFMOWOQ | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0396 | SBCQRTHYDDHFTKSBCKGLXGUUHEOHQQUDAFGBQKSSPBHKLFVHSIBBEPSBGDGV | SBCQRTHYDDHFTKSBCKGLXGUUHEOHQQUDAFGBQKSSPBHKLFVHSIBBEPSBGDGV | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
cda-0019751 | 7 15 15 4 5 4 21 3 1 20 9 15 14 1 12 20 15 15 12 19 5 24 16 12 1 9 14 20 8 5 9 18 12 9 13 9 20 19 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17 21 1 18 5 23 9 20 8 20 18 1 14 19 16 15 19 9 20 9 15 14 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 5 22 5 ... | 7 15 15 4 5 4 21 3 1 20 9 15 14 1 12 20 15 15 12 19 5 24 16 12 1 9 14 20 8 5 9 18 12 9 13 9 20 19 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17 21 1 18 5 23 9 20 8 20 18 1 14 19 16 15 19 9 20 9 15 14 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 5 22 5 ... | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION A STRONG CLAIM NEEDS STRONG EVIDENCE EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 158 | 158 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
wallis-cipher-103 | 90 31 70 19 91 90 36 72 89 47 84 91 90 77 87 69 78 46 91 90 28 32 34 91 90 40 33 55 12 76 91 90 69 29 30 53 91 90 24 45 19 91 90 54 11 81 75 91 90 88 32 42 91 90 66 30 27 87 91 90 31 70 19 91 90 53 68 41 30 87 91 | 90 31 70 19 91 90 36 72 89 47 84 91 90 77 87 69 78 46 91 90 28 32 34 91 90 40 33 55 12 76 91 90 69 29 30 53 91 90 24 45 19 91 90 54 11 81 75 91 90 88 32 42 91 90 66 30 27 87 91 90 31 70 19 91 90 53 68 41 30 87 91 | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 142 | 212 | cipher_museum | 0.2 | public | null | null |
nomenclator-095 | 64 23 01 18 60 13 15 18 01 12 09 19 63 60 16 08 25 19 09 03 01 12 01 19 20 08 18 05 05 09 19 63 15 14 05 | 64 23 01 18 60 13 15 18 01 12 09 19 63 60 16 08 25 19 09 03 01 12 01 19 20 08 18 05 05 09 19 63 15 14 05 | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 70 | 104 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0277 | OUTMSFQQDOTAZU | OUTMSFQQDOTAZU | TRUST BUT VERIFY | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0056 | U WXCK XCQ KGYQ OCIVZL CQGLVZ DYA QYWL PIQ YZ JCV DL HURL DL EUPLVQA CV HURL DL MLYQG | U WXCK XCQ KGYQ OCIVZL CQGLVZ DYA QYWL PIQ YZ JCV DL HURL DL EUPLVQA CV HURL DL MLYQG | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 67 | 85 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-392 | GBTBM AGQBMMRJQ XHRM BGBFX VSBG SB AN FPDAGU P FANQPDB | GBTBM AGQBMMRJQ XHRM BGBFX VSBG SB AN FPDAGU P FANQPDB | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "POLYBIUS"
} | beginner | en | 45 | 54 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-0366 | TCDT LK TCO NEQST GDY LN FDKUDQY EK TCO YODQ LN LUQ ILQG LKO TCLUSDKG OEBCT CUKGQOG DKG SEXTY TCQOO DII MOQSLKS COIG DS SIDVOS WETCEK DKY STDTO EK QOROIIELK DBDEKST TCO UKETOG STDTOS SCDII RO NQOO | TCDT LK TCO NEQST GDY LN FDKUDQY EK TCO YODQ LN LUQ ILQG LKO TCLUSDKG OEBCT CUKGQOG DKG SEXTY TCQOO DII MOQSLKS COIG DS SIDVOS WETCEK DKY STDTO EK QOROIIELK DBDEKST TCO UKETOG STDTOS SCDII RO NQOO | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "DRAGON"
} | beginner | en | 160 | 196 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0188 | 76 57 38 29 48 63 49 76 28 28 25 37 56 87 45 40 35 47 48 63 56 64 29 65 55 39 96 58 66 27 55 28 50 53 47 62 29 26 59 66 84 56 84 57 29 35 58 53 47 83 27 55 46 48 83 60 52 48 37 35 78 54 80 56 57 49 27 39 74 47 72 60 67 26 46 75 56 64 29 37 39 60 54 80 76 27 56 55 67 73 77 72 29 59 56 78 83 47 63 56 56 29 48 83 59 45 36... | 76 57 38 29 48 63 49 76 28 28 25 37 56 87 45 40 35 47 48 63 56 64 29 65 55 39 96 58 66 27 55 28 50 53 47 62 29 26 59 66 84 56 84 57 29 35 58 53 47 83 27 55 46 48 83 60 52 48 37 35 78 54 80 56 57 49 27 39 74 47 72 60 67 26 46 75 56 64 29 37 39 60 54 80 76 27 56 55 67 73 77 72 29 59 56 78 83 47 63 56 56 29 48 83 59 45 36... | 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 | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 340 | 509 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0584 | CBWAMCZXUWKICGEEWWLGRLFVRVJMZRRLRYNSIIEPTTISBJTOIIGAXVFPLAPXVRGKPEGYKRDKDBZQLT | CBWAMCZXUWKICGEEWWLGRLFVRVJMZRRLRYNSIIEPTTISBJTOIIGAXVFPLAPXVRGKPEGYKRDKDBZQLT | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
fialka-107 | PDDZEEVFBFODSAWXDOPRTXUPIKZUNYBNMYQKELLMAFGXTQLTZ | PDDZEEVFBFODSAWXDOPRTXUPIKZUNYBNMYQKELLMAFGXTQLTZ | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | fialka | fialka | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0211 | DVIIADHMLLAMZMCFLTSAVMKHCYWGXBRAJVPZNGUYRDVJFKXTLGSXIMIFNUPQYLYPZCFJNUTQQSBTMMFBZ | DVIIADHMLLAMZMCFLTSAVMKHCYWGXBRAJVPZNGUYRDVJFKXTLGSXIMIFNUPQYLYPZCFJNUTQQSBTMMFBZ | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0008165 | PYNF FVPN YPVC UREF GRNP UJUL ZBQR EAFR PHEV GLZN GGRE F | PYNF FVPN YPVC UREF GRNP UJUL ZBQR EAFR PHEV GLZN GGRE F | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
cda-0007173 | PIIH NNIO WCCO ECDR IESD PLTU YSRO FOPI SATC LHEP ETEC DMEE SNNU EEUI NLST TAVB EOEO NAUI HLTT PXSE XHNX LEIE FFPS RIUE AUIL LCPC ABDL EESA NOHI OTXA IOLC FL | PIIH NNIO WCCO ECDR IESD PLTU YSRO FOPI SATC LHEP ETEC DMEE SNNU EEUI NLST TAVB EOEO NAUI HLTT PXSE XHNX LEIE FFPS RIUE AUIL LCPC ABDL EESA NOHI OTXA IOLC FL | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE INDEX OF COINCIDENCE IS A USEFUL CLUE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "DRAGON"
} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
nomenclator-v3-0141 | 60 20 05 12 05 19 03 15 16 05 18 05 22 05 01 12 19 | 60 20 05 12 05 19 03 15 16 05 18 05 22 05 01 12 19 | THE TELESCOPE REVEALS | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0131 | XMNCQSXNJHPBJKFCMPCX | XMNCQSXNJHPBJKFCMPCX | THE COMPASS POINTS TRUE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-070 | 7245320026202451712252717356522 | 7245320026202451712252717356522 | THE PACKAGE IS DELIVERED | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "CIPHERMUS"
} | advanced | en | 31 | 31 | cipher_museum | 0.2 | public | null | null |
bazeries-v3-0510 | UHKHAVRXKFOHERLJOLJKOHULTHIQKHHYPHJLQTSOQPQRLHUBKHHPHAPBQBPYEBOHAQAQRLQAGMLHMHQGFLQHLQOLOHPBGLIFYKFQBAQPKBLQKHQSQBHULEVHQKHJKOEKBXFGSLRPQBLBQFYKTSPKLKTKBOMAPHGMB | UHKHAVRXKFOHERLJOLJKOHULTHIQKHHYPHJLQTSOQPQRLHUBKHHPHAPBQBPYEBOHAQAQRLQAGMLHMHQGFLQHLQOLOHPBGLIFYKFQBAQPKBLQKHQSQBHULEVHQKHJKOEKBXFGSLRPQBLBQFYKTSPKLKTKBOMAPHGMB | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
alberti-disk-239 | GAOQUTENRPGYHFZRXIOEDFTGIJNGBCQHKEXQPBPDULUPCICOMVLQURHUUWKFUGEZIVAOFTHJCJSBXACGJRDUBXWBDVOBOKYJPNFNFJFGKBOPTENBEUSYTKJYXNCNMUGUGTNZBHKTKBXHDETDXLWD | GAOQUTENRPGYHFZRXIOEDFTGIJNGBCQHKEXQPBPDULUPCICOMVLQURHUUWKFUGEZIVAOFTHJCJSBXACGJRDUBXWBDVOBOKYJPNFNFJFGKBOPTENBEUSYTKJYXNCNMUGUGTNZBHKTKBXHDETDXLWD | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 19
} | expert | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
fialka-036 | JJYRBDQKAYGNLVKVRKFYQJSEZRHFMJREWBYLSYQJNZIFZTGAIQI | JJYRBDQKAYGNLVKVRKFYQJSEZRHFMJREWBYLSYQJNZIFZTGAIQI | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | fialka | fialka | machine | {
"type": "seed",
"value": "M125"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
cda-0022094 | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH KFYORX RMUIZHGIFXGFIV WVHVIEVH XZIVUFO WVHRTM XZVHZI HSRUGVW GSV ZOKSZYVG YB GSIVV KLHRGRLMH | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH KFYORX RMUIZHGIFXGFIV WVHVIEVH XZIVUFO WVHRTM XZVHZI HSRUGVW GSV ZOKSZYVG YB GSIVV KLHRGRLMH | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | atbash | atbash | null | {} | hard | en | 127 | 127 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
geez-monastic-v3-0094 | KAJBJZJMPBRXHMOHXDHZJMBOJBLCJQHOJUIJULMNQLYZJHXLAJUJJBIUYLYULAJMYDALHXLAJTJHTVJLHPVLJMHMLHPCHVYUAYLPBILHYBULYLNLJBJKDHZJMBOJBLVPRYBDYLUXHNBIPLYHBHBUNQATMYBQYTVJU | KAJBJZJMPBRXHMOHXDHZJMBOJBLCJQHOJUIJULMNQLYZJHXLAJUJJBIUYLYULAJMYDALHXLAJTJHTVJLHPVLJMHMLHPCHVYUAYLPBILHYBULYLNLJBJKDHZJMBOJBLVPRYBDYLUXHNBIPLYHBHBUNQATMYBQYTVJU | 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 | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0124 | LCCWWVGEQSRW | LCCWWVGEQSRW | GOLD FROM LEAD | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0832 | NJCOEYOEYTSSNESVTTFUSPTSMOEHMETNNDEAOTNAEHINSWEEGEEOIRTTTETPUFIGSEGNOOTDAUNTNCRNNHIEEDNVECGAETUAHNDONEPWNNOEEGRHSELMSIDEEEHTHEVRHFERETHYOOTIERNESRNARERHATAIFRNICTDILEELIIMGOETVT | NJCOEYOEYTSSNESVTTFUSPTSMOEHMETNNDEAOTNAEHINSWEEGEEOIRTTTETPUFIGSEGNOOTDAUNTNCRNNHIEEDNVECGAETUAHNDONEPWNNOEEGRHSELMSIDEEEHTHEVRHFERETHYOOTIERNESRNARERHATAIFRNICTDILEELIIMGOETVT | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0093 | WRFAATWETBTRYISETULETLETATOERARAALAAAETAUTSHETEVALREHHDDCTEINEHMELRNSOEOSHSIHMCDTENBROCNERTOSIEDRFNLESEDTEEELYEYIRHUIISNEFBTUHIDHTBETNRQAAETEWTNLGTGHEIHPAPTONAURHIAHTLEP | WRFAATWETBTRYISETULETLETATOERARAALAAAETAUTSHETEVALREHHDDCTEINEHMELRNSOEOSHSIHMCDTENBROCNERTOSIEDRFNLESEDTEEELYEYIRHUIISNEFBTUHIDHTBETNRQAAETEWTNLGTGHEIHPAPTONAURHIAHTLEP | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-009 | FYNFAPHKHPVCOF2ZAKYPU | FYNFAPHKHPVCOF2ZAKYPU | SUPPLY LINE COMPROMISED | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "XMCKL"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
pigpen-v3-0091 | △ ┼ ┐• ┤• ┴• ┼• ┤• ╳• ¬• ┼ ├ ┌ ┼ ┌• ┐• ┤• ┤• ┤ ╲ ⌐ ¬• ¬• ┤• ╳• ┤• ┼• ┼ ┌• ⌐ ┐• ╳ ▽ ╳ ┤• ┌• ┐• ┤• ╲• ┼ ┴• ┼• ┤• ╳• ¬• ┼ ├ ┌ ┼ ╳• ┐ ╳ ┬ ┤• ╱ ╳ ┐• ┼ ╲• ┼ ⌐ ¬• ┐ ┼• ┌ ╳ ┬ ┼ ┴• ┼• ┤• ╳• ¬• ┼ ├ ┌ ┼ ┐ ╳ ╲ ┼ ¬• ┤ | △ ┼ ┐• ┤• ┴• ┼• ┤• ╳• ¬• ┼ ├ ┌ ┼ ┌• ┐• ┤• ┤• ┤ ╲ ⌐ ¬• ¬• ┤• ╳• ┤• ┼• ┼ ┌• ⌐ ┐• ╳ ▽ ╳ ┤• ┌• ┐• ┤• ╲• ┼ ┴• ┼• ┤• ╳• ¬• ┼ ├ ┌ ┼ ╳• ┐ ╳ ┬ ┤• ╱ ╳ ┐• ┼ ╲• ┼ ⌐ ¬• ┐ ┼• ┌ ╳ ┬ ┼ ┴• ┼• ┤• ╳• ¬• ┼ ├ ┌ ┼ ┐ ╳ ╲ ┼ ¬• ┤ | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 123 | 204 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0061 | PUEKAPLRHNQPBIHXHMRHNMQHNBLMRBHLKAPLRHNMQHNBLMRQPBIHXHMRHNLHIPRPBIPVKPRU | PUEKAPLRHNQPBIHXHMRHNMQHNBLMRBHLKAPLRHNMQHNBLMRQPBIHXHMRHNLHIPRPBIPVKPRU | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
m209-262 | CHDWIYJLKVAKQKZXML | CHDWIYJLKVAKQKZXML | AWAIT FURTHER ORDERS | m209 | m209 | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0029 | AVGXFVGADAFDDFDFXFGDAGFAFGGVAAADGAFDVVVAGX | AVGXFVGADAFDDFDFXFGDAGFAFGGVAAADGAFDVVVAGX | PATIENCE BRINGS VICTORY | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 42 | 42 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0210 | YMYQZHEWMSHJYXNQYM | YMYQZHEWMSHJYXNQYM | CROSS THE RUBICON NOW | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0115 | QNOLRLUADPGABOAFUAMYOIEMTNAUIHCZUGPOQADWCOUTCKHAZPTWIOPORXQKQNTNPDMZIMNQULLOTUINCUDESYUGCZUZTNDEZPLCADXTCKKAMPCLAXCWQFPLOTKTSECNCOAUCRKIMGSEEMMLHMMEMQGOLUXL | QNOLRLUADPGABOAFUAMYOIEMTNAUIHCZUGPOQADWCOUTCKHAZPTWIOPORXQKQNTNPDMZIMNQULLOTUINCUDESYUGCZUZTNDEZPLCADXTCKKAMPCLAXCWQFPLOTKTSECNCOAUCRKIMGSEEMMLHMMEMQGOLUXL | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 156 | 156 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0348 | QNEBATUKBQBLNNTYTAQCOKOPPBDTIEEEAEZQANOEOSTOVEDGIFTYQNOUSAFTCASUOISKFQTOSBKY | QNEBATUKBQBLNNTYTAQCOKOPPBDTIEEEAEZQANOEOSTOVEDGIFTYQNOUSAFTCASUOISKFQTOSBKY | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0197 | 81 83 82 17 26 32 37 18 20 75 83 66 67 59 37 82 22 66 23 60 20 75 83 77 70 20 65 41 12 83 44 37 66 18 28 37 63 26 77 16 20 25 28 56 83 84 67 20 63 66 83 32 20 74 68 28 26 37 82 63 66 37 18 83 64 28 56 20 83 44 12 17 38 20 32 88 36 66 82 83 72 67 34 56 20 63 37 23 67 81 41 66 18 84 83 56 37 28 72 25 59 44 63 77 41 20 25... | 81 83 82 17 26 32 37 18 20 75 83 66 67 59 37 82 22 66 23 60 20 75 83 77 70 20 65 41 12 83 44 37 66 18 28 37 63 26 77 16 20 25 28 56 83 84 67 20 63 66 83 32 20 74 68 28 26 37 82 63 66 37 18 83 64 28 56 20 83 44 12 17 38 20 32 88 36 66 82 83 72 67 34 56 20 63 37 23 67 81 41 66 18 84 83 56 37 28 72 25 59 44 63 77 41 20 25... | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 338 | 506 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0266 | ALWVCKOLFDAHPVPYPHRPHRVMKMAWOOUHEURJNHAWEGWNKSSOPDHVXAHKZNMGHIZLRXGMUTKHFB | ALWVCKOLFDAHPVPYPHRPHRVMKMAWOOUHEURJNHAWEGWNKSSOPDHVXAHKZNMGHIZLRXGMUTKHFB | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0017293 | K ⌒ ┘· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X Γ Γ· ¬· ┌· ⌐ ┐· r· X ⌒ Γ· K r· K ⌒ ┘· ┐· ┘· └ ⌒· ¬ Γ· X· X ⌐ └ ┐· r· ⌐ ¬ L K X r ⌐ L X ⌐ ┌· X r· Γ· ⌐· K L Γ K r· L ⌐ └ ┐· r· ⌐ ¬ L K ¬ ⌒· K r· ┌· L L ┐· ┘· X Γ· K Γ· ┘· ─ X r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ ... | K ⌒ ┘· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X Γ Γ· ¬· ┌· ⌐ ┐· r· X ⌒ Γ· K r· K ⌒ ┘· ┐· ┘· └ ⌒· ¬ Γ· X· X ⌐ └ ┐· r· ⌐ ¬ L K X r ⌐ L X ⌐ ┌· X r· Γ· ⌐· K L Γ K r· L ⌐ └ ┐· r· ⌐ ¬ L K ¬ ⌒· K r· ┌· L L ┐· ┘· X Γ· K Γ· ┘· ─ X r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | pigpen | pigpen | null | {} | medium | en | 63 | 63 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
solitaire-v3-0203 | WTLRCZMFSTLVFSQNMFIMKWATRTSSZQWUMUBYQKIEYQILDGONBVTUYQOKOAJVISCBPSFUVDRIZEFQZTOBGWIQVXLZAOOXJSVUTWHQMERMSIXJQVKBBQSKHRSPHMPKEFKLWPIRLZKFXYLVLYDZGEHUEOSKNCSNKWMBOMJIVLMIAJ | WTLRCZMFSTLVFSQNMFIMKWATRTSSZQWUMUBYQKIEYQILDGONBVTUYQOKOAJVISCBPSFUVDRIZEFQZTOBGWIQVXLZAOOXJSVUTWHQMERMSIXJQVKBBQSKHRSPHMPKEFKLWPIRLZKFXYLVLYDZGEHUEOSKNCSNKWMBOMJIVLMIAJ | 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 | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
cda-0005150 | NFPLG NYRVF NEBQH FRQOL FCNEG NAFGB RAPEL CGZRF FNTRF | NFPLG NYRVF NEBQH FRQOL FCNEG NAFGB RAPEL CGZRF FNTRF | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0002427 | ZXFESFSFRIGGCFJCPECKTFDPASJLRQXKIELJVVVXZWSQPDXFCSKBLRZWIGBKROMDWHTIEPELNVVXCIJNIEHPHYMXEKZXBAHEIOUYNWAEPIUMMEERXAPIJAAXYMEJFFVPXIFSNBGTKVYXHXETRPVVDLFPJJRBPBHNHAVANAAISIKYQLXTQMQLUIEQWMKFINIPCWIRZQLSSSJWMJQBFELHX | ZXFESFSFRIGGCFJCPECKTFDPASJLRQXKIELJVVVXZWSQPDXFCSKBLRZWIGBKROMDWHTIEPELNVVXCIJNIEHPHYMXEKZXBAHEIOUYNWAEPIUMMEERXAPIJAAXYMEJFFVPXIFSNBGTKVYXHXETRPVVDLFPJJRBPBHNHAVANAAISIKYQLXTQMQLUIEQWMKFINIPCWIRZQLSSSJWMJQBFELHX | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | autokey | autokey | null | {
"primer": "LIBRARY"
} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
kryha-015 | XUXKACOQQYUPKYS | XUXKACOQQYUPKYS | OPERATION BEGINS | kryha | kryha | machine | {
"type": "keyword",
"value": "KRYHA"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v2-0295 | 20022738476834252235722852374841621422218572362233425225724741021232857208325223 | 20022738476834252235722852374841621422218572362233425225724741021232857208325223 | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0003213 | WIIC JBWM ITXX QTWI TFZI ISJC KFQF YQRE JBNU VULF UUDZ JBNA FJTI JAHO GSDY WTTB NAVP JMJC WFVT XRPV PUFW HPYT QHQF ZFW | WIIC JBWM ITXX QTWI TFZI ISJC KFQF YQRE JBNU VULF UUDZ JBNA FJTI JAHO GSDY WTTB NAVP JMJC WFVT XRPV PUFW HPYT QHQF ZFW | THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY NEVER | gronsfeld | gronsfeld | null | {
"key": "314159"
} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
cardano-autokey-v2-0296 | TQKWRUVVLMQMNLRBUQWTFJTFVXALMZUHETAZLALZVLTINGGRZZVKTSLXHHETAIVNHBPG | TQKWRUVVLMQMNLRBUQWTFJTFVXALMZUHETAZLALZVLTINGGRZZVKTSLXHHETAIVNHBPG | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0344 | 25 29 13 77 18 39 33 65 71 69 44 39 24 67 29 48 46 20 69 29 33 11 75 69 63 21 46 28 58 42 71 75 39 65 42 29 11 89 75 27 87 21 42 75 59 28 63 49 11 38 42 15 77 69 68 41 28 20 71 44 57 11 38 28 18 25 64 39 44 11 33 75 29 38 71 23 59 42 | 25 29 13 77 18 39 33 65 71 69 44 39 24 67 29 48 46 20 69 29 33 11 75 69 63 21 46 28 58 42 71 75 39 65 42 29 11 89 75 27 87 21 42 75 59 28 63 49 11 38 42 15 77 69 68 41 28 20 71 44 57 11 38 28 18 25 64 39 44 11 33 75 29 38 71 23 59 42 | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0491 | SLCHAQRLXHKOPSLAQFGBJYKFBEHIPHAQBVPKGEKBPFFMHQPHZQLFGPHQLOVSEFEKLGBATKBLFK | SLCHAQRLXHKOPSLAQFGBJYKFBEHIPHAQBVPKGEKBPFFMHQPHZQLFGPHQLOVSEFEKLGBATKBLFK | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0457 | FSLMJWAKOJALLWFAFLZWDSFYMSYWGXESLZWESLAUKSFVALKUZSJSULWJKSJWLJASFYDWKSFVUAJUDWK | FSLMJWAKOJALLWFAFLZWDSFYMSYWGXESLZWESLAUKSFVALKUZSJSULWJKSJWLJASFYDWKSFVUAJUDWK | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0177 | GZVLJIVSSPXZWQHEBJHYXTICCMOCEPRFWYIEEPRLEIBATUHXHVILAPHFHOTVSULMLVFVUSSLPOTSPS | GZVLJIVSSPXZWQHEBJHYXTICCMOCEPRFWYIEEPRLEIBATUHXHVILAPHFHOTVSULMLVFVUSSLPOTSPS | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0366 | 425145642522238034211765232616721076864252276221052357202850215622425572316212282425425726210222116213875476425022221282870220356325222821133281732237484258616763414228602220222828856124186344252272684222134142233251282820222302222 | 425145642522238034211765232616721076864252276221052357202850215622425572316212282425425726210222116213875476425022221282870220356325222821133281732237484258616763414228602220222828856124186344252272684222134142233251282820222302222 | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 231 | 231 | cipher_museum | 2.0 | public | null | null |
cda-0015055 | 857 853 801 840 854 845 843 854 824 857 824 842 839 999 807 826 845 822 812 852 855 999 853 813 802 852 851 800 840 820 812 999 834 812 858 858 814 853 855 999 868 826 858 823 843 861 858 999 855 862 805 855 857 824 859 862 857 825 843 840 999 858 844 809 800 874 999 | 857 853 801 840 854 845 843 854 824 857 824 842 839 999 807 826 845 822 812 852 855 999 853 813 802 852 851 800 840 820 812 999 834 812 858 858 814 853 855 999 868 826 858 823 843 861 858 999 855 862 805 855 857 824 859 862 857 825 843 840 999 858 844 809 800 874 999 | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION TODAY | culper_ring | culper_ring | null | {} | medium | en | 60 | 60 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
adfgvx-v3-0117 | AFAGGGFDAFFGAGGGXAAFAFAVDXGVFGGADAGDXDAGVD | AFAGGGFDAFFGAGGGXAAFAFAVDXGVFGGADAGDXDAGVD | THE CASTLE IS SURROUNDED | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 42 | 42 | cipher_museum | 2.0 | public | null | null |
hill-v3-0151 | RFKWDPRGOXJBFXJFMKCRQWCQHWFNPJGWSVJORMQEDCFGIYRUOFOIOUIQIMHWZKTGKXJBAMSUYVYCLQNNLIZKKMBU | RFKWDPRGOXJBFXJFMKCRQWCQHWFNPJGWSVJORMQEDCFGIYRUOFOIOUIQIMHWZKTGKXJBAMSUYVYCLQNNLIZKKMBU | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0014645 | DUUU EAJA AFER AYZF NWFK XULR FDCX AXZP BSPK WNTH VQVV HQFV | DUUU EAJA AFER AYZF NWFK XULR FDCX AXZP BSPK WNTH VQVV HQFV | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | running_key | running_key | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
pigpen-v3-0073 | ┴ ¬• ┼ ╲ ╲ ┼ ├ ⌐ ┐• ┼ ╳ ┬ ┼ ├• ┼ ┼ ┴• ┤ ┤• ┐• ╳ ┬ ┼ ▽ ╲ ┬ ⌐ ¬• ¬• ┐ ┼• ┬ ┼ ┐• ┐ ╳ ╳ ┬ ┼ ┼ ⌐ ┐• ╳ ┬ ⌐ ┼• ├ ╳ ┬ ┼ ┌• ┼ ⌐ ¬ ┼ ├• ⌐ ┴• ┼ ┐• ╲ ╲ ┬ ⌐ ¬• ¬• ┴ ┼ ¬ ⌐ ¬• ¬• ┼ ├ ╲ ┤• ┼• ╲ | ┴ ¬• ┼ ╲ ╲ ┼ ├ ⌐ ┐• ┼ ╳ ┬ ┼ ├• ┼ ┼ ┴• ┤ ┤• ┐• ╳ ┬ ┼ ▽ ╲ ┬ ⌐ ¬• ¬• ┐ ┼• ┬ ┼ ┐• ┐ ╳ ╳ ┬ ┼ ┼ ⌐ ┐• ╳ ┬ ⌐ ┼• ├ ╳ ┬ ┼ ┌• ┼ ⌐ ¬ ┼ ├• ⌐ ┴• ┼ ┐• ╲ ╲ ┬ ⌐ ¬• ¬• ┴ ┼ ¬ ⌐ ¬• ¬• ┼ ├ ╲ ┤• ┼• ╲ | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 100 | 177 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0236 | BBCTUOZNFURIPSERHAYPQZJFHBYCHIQIGEYZDKOIVAEDSRICFHHBMYMMZOSJMRXARRHCIHBKOKAMEORSNNKWJAEBDBUFZNCCYGEQEVPWHTEOMZMZIWXCBUMDKWIXMLYTKVVOTGPF | BBCTUOZNFURIPSERHAYPQZJFHBYCHIQIGEYZDKOIVAEDSRICFHHBMYMMZOSJMRXARRHCIHBKOKAMEORSNNKWJAEBDBUFZNCCYGEQEVPWHTEOMZMZIWXCBUMDKWIXMLYTKVVOTGPF | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
caesar-vf-0037 | JUNGFBRIRE LR QB QB VG URNEGVYL NF GB GUR YBEQ NAQ ABG HAGB ZRA SBE UVF TYBEL VF TERNG | JUNGFBRIRE LR QB QB VG URNEGVYL NF GB GUR YBEQ NAQ ABG HAGB ZRA SBE UVF TYBEL VF TERNG | WHATSOEVER YE DO DO IT HEARTILY AS TO THE LORD AND NOT UNTO MEN FOR HIS GLORY IS GREAT | caesar | caesar | substitution | {
"type": "shift",
"value": 13
} | beginner | en | 68 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0010200 | RVTEO CVOAR GEWTE OCUTE RDHRA NVSFR KCBFS FWZCN SNWCU SEFCH NNWNW ASEOF GEHQG HERQS FREIR FQOER SHYQS FVUAG VROEQ UWGRQ GHERF VBHYQ ZOXRZ VFHFR VOERS E | RVTEO CVOAR GEWTE OCUTE RDHRA NVSFR KCBFS FWZCN SNWCU SEFCH NNWNW ASEOF GEHQG HERQS FREIR FQOER SHYQS FVUAG VROEQ UWGRQ GHERF VBHYQ ZOXRZ VFHFR VOERS E | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | porta | porta | null | {
"key": "SECURE"
} | hard | en | 126 | 126 | synthetic_educational | null | null | [] | |
cardano-autokey-152 | FRZZVZVGXVILJIRMILVRRQKUDLRULMAEMKSVTGMUALTKO | FRZZVZVGXVILJIRMILVRRQKUDLRULMAEMKSVTGMUALTKO | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
kryha-v2-0372 | ETREJBCVUXLYZFGEQKDEYTHVZEAXBXSOSEHHVGQGKBBVNOEAQRFLOKJJYSFVPPKQBAOZJJHGRZLPJHQVGJRZLOZIURCGYTVQPUVFXAUDIIEJKKJMXTMKPBXFXGDRCZOJDRINTJVVUXAWJQWMJYYZSIIKXURJHEPBTKOXOBCWAENNBVNNTPDYT | ETREJBCVUXLYZFGEQKDEYTHVZEAXBXSOSEHHVGQGKBBVNOEAQRFLOKJJYSFVPPKQBAOZJJHGRZLPJHQVGJRZLOZIURCGYTVQPUVFXAUDIIEJKKJMXTMKPBXFXGDRCZOJDRINTJVVUXAWJQWMJYYZSIIKXURJHEPBTKOXOBCWAENNBVNNTPDYT | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0364 | 01 12 12 23 01 18 06 01 18 05 09 19 02 01 19 05 04 15 14 04 05 03 05 16 20 09 15 14 08 05 14 03 05 23 08 05 14 01 02 12 05 63 90 23 05 13 21 19 20 19 05 05 13 21 14 01 02 12 05 23 08 05 14 21 19 09 14 07 15 21 18 06 15 18 03 05 19 23 05 13 21 19 20 19 05 05 13 09 14 01 03 20 09 22 05 23 08 05 14 23 05 01 18 05 14 05 01... | 01 12 12 23 01 18 06 01 18 05 09 19 02 01 19 05 04 15 14 04 05 03 05 16 20 09 15 14 08 05 14 03 05 23 08 05 14 01 02 12 05 63 90 23 05 13 21 19 20 19 05 05 13 21 14 01 02 12 05 23 08 05 14 21 19 09 14 07 15 21 18 06 15 18 03 05 19 23 05 13 21 19 20 19 05 05 13 09 14 01 03 20 09 22 05 23 08 05 14 23 05 01 18 05 14 05 01... | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 286 | 428 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0387 | DGAGDXAFGAXADGDGDGDAFGAGFDAF | DGAGDXAFGAXADGDGDGDAFGAGFDAF | LIBERTY OR DEATH | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0002930 | VPTVRVMPQSCEWQEXWERZWMPGOCPRCPBCPYENCCIIPUTPHKTLJIFVZPKAQLBSTNSUYJHVVGVRYCGXFFZEGTHKACZTWAOKXHSRXWJGLJQPUTEEHAHFQXKLHKQASKHOHZEFICWQSGTYVHFXHEVNVVCWHKHJUAZGEJLEVBPESAVBVNPEEXJSVFLBKLOUAHV | VPTVRVMPQSCEWQEXWERZWMPGOCPRCPBCPYENCCIIPUTPHKTLJIFVZPKAQLBSTNSUYJHVVGVRYCGXFFZEGTHKACZTWAOKXHSRXWJGLJQPUTEEHAHFQXKLHKQASKHOHZEFICWQSGTYVHFXHEVNVVCWHKHJUAZGEJLEVBPESAVBVNPEEXJSVFLBKLOUAHV | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE MESSAGE WAS HIDDEN BUT NOT SECURE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | autokey | autokey | null | {
"primer": "CIPHER"
} | hard | en | 187 | 187 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
kryptos-v2-0279 | DQQCVHZREFEFX | DQQCVHZREFEFX | HONOR ABOVE ALL | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
diana-v2-0199 | ZIAKEYUOWQXCWSZHRWITHSMWKCWSZHRWQHLBWAZUNHAWANIHLZHSYCWSARQINWUUKELANIOLB | ZIAKEYUOWQXCWSZHRWITHSMWKCWSZHRWQHLBWAZUNHAWANIHLZHSYCWSARQINWUUKELANIOLB | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0143 | YODQASZTYZTIEHUBSMPUY | YODQASZTYZTIEHUBSMPUY | THE EXPERIMENT CONFIRMS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0016541 | .. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ... | .. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE VIGENERE CIPHER USES A REPEATING KEYWORD THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | tap_code | tap_code | null | {} | hard | en | 188 | 188 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
jn25-v3-0292 | 21248 21249 21240 21239 21242 21243 21249 21248 21243 21232 21235 21246 21246 21236 21239 21232 21239 21246 21238 21244 21249 21235 21248 21243 21257 21239 21242 21230 21249 21242 21235 21237 21235 21240 21233 21244 21235 21246 21237 21242 21233 21247 21239 21255 21248 21246 21239 21243 21243 21249 21248 21240 21242 21... | 21248 21249 21240 21239 21242 21243 21249 21248 21243 21232 21235 21246 21246 21236 21239 21232 21239 21246 21238 21244 21249 21235 21248 21243 21257 21239 21242 21230 21249 21242 21235 21237 21235 21240 21233 21244 21235 21246 21237 21242 21233 21247 21239 21255 21248 21246 21239 21243 21243 21249 21248 21240 21242 21... | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 370 | 443 | cipher_museum | 2.0 | public | null | null |
cda-0012998 | QOTE DYQO TEDY SHOR RAII NRCH EOLS HEED YSHO RCHO LCTA IINO RORC HORO RORC HEDA LOKA INYT EDYD ALDA IINY TEDY CHED ALCH EOLR CHEO LOTA INOK SHYC HOLQ OKED YOKA INSH EOLO TOLO KSHY OKSH YOTO LKAI IINS HORS HEDY QOKA L | QOTE DYQO TEDY SHOR RAII NRCH EOLS HEED YSHO RCHO LCTA IINO RORC HORO RORC HEDA LOKA INYT EDYD ALDA IINY TEDY CHED ALCH EOLR CHEO LOTA INOK SHYC HOLQ OKED YOKA INSH EOLO TOLO KSHY OKSH YOTO LKAI IINS HORS HEDY QOKA L | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION ALWAYS | voynich_render | voynich_render | null | {} | hard | en | 173 | 173 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
playfair-la-030 | BPCNOPFYBTESSV | BPCNOPFYBTESSV | COGITO ERGO SUM | playfair | playfair | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | la | 14 | 14 | cipher_museum | 0.2 | public | null | null |
hill-v2-0341 | YHFVDFRTVPHRILZVTQCMWUYGRTFRYSWWPDJTBBDFHHLICMXPEADABKYRBRPQTKGSYKBERTLHKIRTBMSQ | YHFVDFRTVPHRILZVTQCMWUYGRTFRYSWWPDJTBBDFHHLICMXPEADABKYRBRPQTKGSYKBERTLHKIRTBMSQ | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
polybius-039 | 21 34 42 44 45 33 15 21 11 51 34 42 43 44 23 15 12 34 31 14 11 33 14 44 23 15 12 42 11 51 15 52 23 34 14 11 42 15 44 34 11 13 44 | 21 34 42 44 45 33 15 21 11 51 34 42 43 44 23 15 12 34 31 14 11 33 14 44 23 15 12 42 11 51 15 52 23 34 14 11 42 15 44 34 11 13 44 | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 86 | 128 | cipher_museum | 0.2 | public | null | null |
cda-0015604 | - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. / -.-. .. .--. .... . .-. - . -..- - | - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. / -.-. .. .--. .... . .-. - . -..- - | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | morse_code | morse_code | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
caesar-v2-0481 | ZNK GSHGYYGJUX NGY XKIKOBKJ UAX SUYZ AXMKTZ JOYVGZINKY GTJ GCGOZY OTYZXAIZOUTY LXUS RUTJUT NW | ZNK GSHGYYGJUX NGY XKIKOBKJ UAX SUYZ AXMKTZ JOYVGZINKY GTJ GCGOZY OTYZXAIZOUTY LXUS RUTJUT NW | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 80 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0002125 | HHLLOTORIEIGEBFSLRNENLLNLUEBCOEECSARRCTVIERAYKTEPSATPSER | HHLLOTORIEIGEBFSLRNENLLNLUEBCOEECSARRCTVIERAYKTEPSATPSER | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS NEVER | scytale | scytale | null | {
"cols": 7
} | medium | en | 56 | 56 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
cda-0010355 | BCRAF BHEPR GBBYF NYYBJ VAQRC RAQRA GIREV SVPNG VBAUH ZNAER NQNOY RBHGC HGFUB HYQFU BJNYY ERNFB AVATF GRCFN GENAF CNERA GGBBY FUBHY QFUBJ VGFER NFBAV AT | BCRAF BHEPR GBBYF NYYBJ VAQRC RAQRA GIREV SVPNG VBAUH ZNAER NQNOY RBHGC HGFUB HYQFU BJNYY ERNFB AVATF GRCFN GENAF CNERA GGBBY FUBHY QFUBJ VGFER NFBAV AT | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 127 | 127 | synthetic_educational | null | null | [] | |
straddling-checkerboard-v2-0213 | 9094672814259422253822347423021262994207210662623203292023639669212862623252382994234125299211702623829921261423 | 9094672814259422253822347423021262994207210662623203292023639669212862623252382994234125299211702623829921261423 | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 112 | 112 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0889 | DQHRREDTZFWCBR | DQHRREDTZFWCBR | SIGNAL FIRES LIT | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
trifid-054 | TXFSJ+JOVJPVRISCWAMNXAD++XUCRXWXBUSHFLYH+HQODJZLRTBODFULFVTAQX | TXFSJ+JOVJPVRISCWAMNXAD++XUCRXWXBUSHFLYH+HQODJZLRTBODFULFVTAQX | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FELIX"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
rail-fence-v2-0458 | THFRHHTEEIOTCNEEGHRFHAIHRLTMHHEGEAODATIKHALRNMESRTVCYAEWHOEEODNOAWNDFOTHNISGSD | THFRHHTEEIOTCNEEGHRFHAIHRLTMHHEGEAODATIKHALRNMESRTVCYAEWHOEEODNOAWNDFOTHNISGSD | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-1219 | MPONTOJSY WJWGYQCQ OXLGKCRQ RBO MWSR RBWR SOPRWCJ GORROPQ WLLOWP MWP HKPO KMROJ CJ OJAGCQB ROXR | MPONTOJSY WJWGYQCQ OXLGKCRQ RBO MWSR RBWR SOPRWCJ GORROPQ WLLOWP MWP HKPO KMROJ CJ OJAGCQB ROXR | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 81 | 95 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0346 | XBDXIYHEABAYNHQGTIUEYHDRNMYDBEQINXGRPQEWKTHXVQSWSQQXEIEBQJXTGVXUVVCGCFYSMLVKHHJNHGFO | XBDXIYHEABAYNHQGTIUEYHDRNMYDBEQINXGRPQEWKTHXVQSWSQQXEIEBQJXTGVXUVVCGCFYSMLVKHHJNHGFO | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0999 | LXENJCWLFUTQOMOTBPHEACSYZHAZMRXUTIFWXCTHJZHWDTKSRKJKGRDGKXITNHFMKPMLLCGNZLOAYRJORYABICINDAZCWPLZPWEYJCBKCXEMLAMNGDWFOMVTBEVGLVKFICZHASBMJQIYJWAUGBXZYTDPRPWJCPCOVNOFOKJNHUJPYGLTSOG | LXENJCWLFUTQOMOTBPHEACSYZHAZMRXUTIFWXCTHJZHWDTKSRKJKGRDGKXITNHFMKPMLLCGNZLOAYRJORYABICINDAZCWPLZPWEYJCBKCXEMLAMNGDWFOMVTBEVGLVKFICZHASBMJQIYJWAUGBXZYTDPRPWJCPCOVNOFOKJNHUJPYGLTSOG | FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
cda-0012618 | 858 868 844 999 855 850 861 802 853 813 999 807 826 845 821 814 851 999 812 841 807 851 873 847 858 854 999 810 824 818 852 800 846 821 855 999 868 826 857 822 999 859 868 843 999 847 842 834 872 805 824 861 854 999 802 833 847 823 801 803 814 857 856 999 856 812 808 861 851 825 857 872 999 806 833 801 826 838 855 999 ... | 858 868 844 999 855 850 861 802 853 813 999 807 826 845 821 814 851 999 812 841 807 851 873 847 858 854 999 810 824 818 852 800 846 821 855 999 868 826 857 822 999 859 868 843 999 847 842 834 872 805 824 861 854 999 802 833 847 823 801 803 814 857 856 999 856 812 808 861 851 825 857 872 999 806 833 801 826 838 855 999 ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES TODAY | culper_ring | culper_ring | null | {} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
lorenz-v3-0013 | THECASTLEISSURROUNDED | THECASTLEISSURROUNDED | THE CASTLE IS SURROUNDED | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
vic-v2-0448 | 685268368090628990290806289611917838048629016868981128989472858591580839283852838680838783908721904906514568665 | 685268368090628990290806289611917838048629016868981128989472858591580839283852838680838783908721904906514568665 | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 111 | 111 | cipher_museum | 2.0 | public | null | null |
cda-0005448 | FBWFYEMSITWGGDWZGKJZWYSPDLQVXAVHREBSGJWOVDXKCRHKJWLGCYMLSHYAMGUIQMXUGVEHXHXZRVOERWCKXWMIGGRLCICUEEZCHANOPDAVQHRIZRUMSBXEKQTV | FBWFYEMSITWGGDWZGKJZWYSPDLQVXAVHREBSGJWOVDXKCRHKJWLGCYMLSHYAMGUIQMXUGVEHXHXZRVOERWCKXWMIGGRLCICUEEZCHANOPDAVQHRIZRUMSBXEKQTV | THE BEST LESSONS SHOW WHERE THE METHOD FAILS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | autokey | autokey | null | {
"primer": "MUSEUM"
} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
geez-monastic-v2-0139 | AIZWIJTPOXFAT | AIZWIJTPOXFAT | STAY THE COURSE | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0397 | BWZVPQUSZDVLDMBMSZ | BWZVPQUSZDVLDMBMSZ | CONTACT HAS BEEN MADE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "JKL"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0207 | TKXHSHFUOTHRNBB | TKXHSHFUOTHRNBB | CHART THE UNKNOWN | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0009860 | FUYLSRAAPSDCEDPEBRKCMNOSFANHRIREAYCELKHTETSIAREEILSONEUTWEYOENNSAVWCEHTITETNFMNADTFOSIINPNQCAINEEIREEVUSTSOAGIOCUBCOTCTX | FUYLSRAAPSDCEDPEBRKCMNOSFANHRIREAYCELKHTETSIAREEILSONEUTWEYOENNSAVWCEHTITETNFMNADTFOSIINPNQCAINEEIREEVUSTSOAGIOCUBCOTCTX | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | scytale | scytale | null | {
"cols": 4
} | hard | en | 120 | 120 | synthetic_educational | null | null | [] | |
straddling-checkerboard-v2-0090 | 2920676717211352309540742002112512022122202341625169870251628144160741612219522122217642552920070251288707010 | 2920676717211352309540742002112512022122202341625169870251628144160741612219522122217642552920070251288707010 | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 109 | 109 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-es-010 | PLARIRUREMAIDTTBOEATE | PLARIRUREMAIDTTBOEATE | PATRIA LIBERTAD O MUERTE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | es | 21 | 21 | cipher_museum | 0.2 | public | null | null |
autokey-v2-0208 | YVFLVAZGVHBFSPYSOEZOSKKLQTMTXRKLGDNVXMEIFHBUIBREWBHRWELIEWLOHWLZDOFHPFEESOOLEPVRD | YVFLVAZGVHBFSPYSOEZOSKKLQTMTXRKLGDNVXMEIFHBUIBREWBHRWELIEWLOHWLZDOFHPFEESOOLEPVRD | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
stager-route-149 | LOLSXGWOCNAXXTAKDLEX | LOLSXGWOCNAXXTAKDLEX | LOCK DOWN ALL GATES | stager_route | stager_route | transposition | {
"type": "integer",
"value": 5
} | expert | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
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