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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
columnar-transposition-v3-0585 | EOSSENVYNLTBFBTEDETDTAHEYARAOTAAOTLTLHSTFSUTAGUEDCRHCILTERDAOFOAETTGTYSIUSS | EOSSENVYNLTBFBTEDETDTAHEYARAOTAAOTLTLHSTFSUTAGUEDCRHCILTERDAOFOAETTGTYSIUSS | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0516 | IIZVNUBYRAFZDEBXTSTPT+MDQUQTSDGS+DXVOZQCSVDAUI+VCJTIMPPEKWEGYSHKKLUMWABCVNUJFAQRU+NDFIIYGUJSHEFLHSTDBRROPJFQFMQURRAGQYBXBUDVZUYRBJJDNKPLQ+VSSIKUDTFCQLCOPYSGAUPD | IIZVNUBYRAFZDEBXTSTPT+MDQUQTSDGS+DXVOZQCSVDAUI+VCJTIMPPEKWEGYSHKKLUMWABCVNUJFAQRU+NDFIIYGUJSHEFLHSTDBRROPJFQFMQURRAGQYBXBUDVZUYRBJJDNKPLQ+VSSIKUDTFCQLCOPYSGAUPD | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0936 | WIIWKQPRBVUPNFIWXLJIKSEOLUPQOOQFXFKQGSSZBULSKHUSOOQFXFKQFMHNWZHFIUZTUKGULPAVBREYRGWPBLFXJTWFPMOJFRDKPFWTGJFWSKYFEMOQHXIKLEIOZLUMFYRGRVSHSSVYDHIOZVXLPNDETFTHUVBZHEXIKXTKPBHSRNKQU | WIIWKQPRBVUPNFIWXLJIKSEOLUPQOOQFXFKQGSSZBULSKHUSOOQFXFKQFMHNWZHFIUZTUKGULPAVBREYRGWPBLFXJTWFPMOJFRDKPFWTGJFWSKYFEMOQHXIKLEIOZLUMFYRGRVSHSSVYDHIOZVXLPNDETFTHUVBZHEXIKXTKPBHSRNKQU | 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 | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31416"
} | intermediate | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
one-time-pad-015 | LBGBLJXCFYQISYI | LBGBLJXCFYQISYI | OPERATION BEGINS | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
cda-0017351 | L ─ K ┌· ┘· ┐· ⌒· ┌ L ⌐ X X· ┌· L X X· ─ r L ┌· K ⌐ Γ· ─ K ⌒· Γ· ─ ⌐ Γ Γ· X K ┌· Γ· ¬ X· K Γ· ┘· ─ | L ─ K ┌· ┘· ┐· ⌒· ┌ L ⌐ X X· ┌· L X X· ─ r L ┌· K ⌐ Γ· ─ K ⌒· Γ· ─ ⌐ Γ Γ· X K ┌· Γ· ¬ X· K Γ· ┘· ─ | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | pigpen | pigpen | null | {} | easy | en | 16 | 16 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
commercial-code-v3-0042 | ZUZUZ FAZUZ SAZUZ ZAZUZ XUZUZ ZUZUZ FAZUZ BAZUZ XAZUZ KAZUZ XUZUZ ZUZUZ FAZUZ SAZUZ ZAZUZ XUZUZ | ZUZUZ FAZUZ SAZUZ ZAZUZ XUZUZ ZUZUZ FAZUZ BAZUZ XAZUZ KAZUZ XUZUZ ZUZUZ FAZUZ SAZUZ ZAZUZ XUZUZ | DOT DASH DOT | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1075 | AVROGWZRTRSZF | AVROGWZRTRSZF | THE APPLE FALLS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0012269 | 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44 23 15 51 24 22 15 33 15 42 15 13 24 35 23 15 42 45 43 15 43 11 42 15 35 15 11 44 24 33 22 25 15 54 52 34 42 14 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22... | 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44 23 15 51 24 22 15 33 15 42 15 13 24 35 23 15 42 45 43 15 43 11 42 15 35 15 11 44 24 33 22 25 15 54 52 34 42 14 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE VIGENERE CIPHER USES A REPEATING KEYWORD FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | polybius | polybius | null | {} | hard | en | 123 | 123 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
kryptos-v3-0042 | JNEQFPQXFH | JNEQFPQXFH | DOT DASH DOT | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0046 | PPXWMSDQULXZZ | PPXWMSDQULXZZ | THE PASS IS HELD | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Lincoln Second Inaugural"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0017361 | FYJSBCHWJZBMGLZUANVXDRUHRMDOVSENMOOKYSBSCFBCBJKBAXLFCQFYSEMELGYDLEVOUAGJXXKNJHEYJDHYVSCTSJEDFWNR | FYJSBCHWJZBMGLZUANVXDRUHRMDOVSENMOOKYSBSCFBCBJKBAXLFCQFYSEMELGYDLEVOUAGJXXKNJHEYJDHYVSCTSJEDFWNR | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | one_time_pad | one_time_pad | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
columnar-transposition-v3-0595 | EYULNSTOTGNJOSESIETEOAHEOIIASAOAITNHMGHELRGHOFASWNPZLIUANBIGAUONRTDETLSWNC | EYULNSTOTGNJOSESIETEOAHEOIIASAOAITNHMGHELRGHOFASWNPZLIUANBIGAUONRTDETLSWNC | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0335 | TOYANEEGLTHFILCWFAFHELSVEIEIORPIEIALNNEERBTGNLDSSAIEEIDTITATCRRLTOTANSETNAHDALDX | TOYANEEGLTHFILCWFAFHELSVEIEIORPIEIALNNEERBTGNLDSSAIEEIDTITATCRRLTOTANSETNAHDALDX | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0019506 | ..-. .-. .. . -.. -- .- -. / . ... - .. -- .- - . -.. / -.- . -.-- / .-.. . -. --. - .... / ..-. .-. --- -- / ... - .- - .. ... - .. -.-. ... | ..-. .-. .. . -.. -- .- -. / . ... - .. -- .- - . -.. / -.- . -.-- / .-.. . -. --. - .... / ..-. .-. --- -- / ... - .- - .. ... - .. -.-. ... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | morse_code | morse_code | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
one-time-pad-v3-0077 | TIGPSQKICASPPQSTFZFMBZEKRDLMKJISILIPOYOLDPIJWWPDPXJREDTHXXZVBQOZFUSGIZVXZJNVCZRT | TIGPSQKICASPPQSTFZFMBZEKRDLMKJISILIPOYOLDPIJWWPDPXJREDTHXXZVBQOZFUSGIZVXZJNVCZRT | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0012461 | 80 23 3 35 80 17 26 46 46 11 63 34 66 99 35 66 63 39 48 11 1 92 11 60 88 33 11 41 50 25 33 4 40 32 43 68 67 48 50 33 87 32 3 23 22 79 33 99 66 46 48 15 23 4 41 80 70 72 78 11 82 30 57 26 34 66 68 88 4 | 80 23 3 35 80 17 26 46 46 11 63 34 66 99 35 66 63 39 48 11 1 92 11 60 88 33 11 41 50 25 33 4 40 32 43 68 67 48 50 33 87 32 3 23 22 79 33 99 66 46 48 15 23 4 41 80 70 72 78 11 82 30 57 26 34 66 68 88 4 | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | homophonic | homophonic | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
jefferson-disk-v3-0120 | HFIHQCVNZZKZCZOEUJRR | HFIHQCVNZZKZCZOEUJRR | THE REDCOATS ARE COMING | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
adfgvx-032 | AADGDADGFAAFFGDXGXDAAGVAAFFXFVFDFAAGDFFFGFDAAGDGDGVXAGGVFVFFGFGVADGXXFVXVGGDAGAGGFDDDFAAGF | AADGDADGFAAFFGDXGXDAAGVAAFFXFVFDFAAGDFFFGFDAAGDGDGVXAGGVFVFFGFGVADGXXFVXVGGDAGAGGFDDDFAAGF | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | adfgvx | adfgvx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 90 | 90 | cipher_museum | 0.2 | public | null | null |
enigma-v2-0419 | WJPVYYUMEWGDDEWVDRUZISSBFIVYRCOCXEKGLFCSGNTEKJRKH | WJPVYYUMEWGDDEWVDRUZISSBFIVYRCOCXEKGLFCSGNTEKJRKH | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | enigma | enigma | machine | {
"type": "rotor_start",
"value": "JKL"
} | expert | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
zimmermann-v3-0001 | 00000 99999 90014 90017 90000 90002 90011 90004 99998 99999 90007 90000 90018 99998 99999 90018 90015 90014 90010 90004 90013 99998 | 00000 99999 90014 90017 90000 90002 90011 90004 99998 99999 90007 90000 90018 99998 99999 90018 90015 90014 90010 90004 90013 99998 | THE ORACLE HAS SPOKEN | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 110 | 131 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0631 | TBO DCO CS EFST | TBO DCO CS EFST | THE DIE IS CAST | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | beginner | en | 12 | 15 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0247 | 75 20 11 28 89 58 11 77 39 18 28 44 42 46 29 38 24 71 27 68 33 | 75 20 11 28 89 58 11 77 39 18 28 44 42 46 29 38 24 71 27 68 33 | THE EXPERIMENT CONFIRMS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 42 | 62 | cipher_museum | 2.0 | public | null | null |
cda-0009245 | TCECLIOHEISUEANINCUXXSIDEDEXXFEXONUXXLCF | TCECLIOHEISUEANINCUXXSIDEDEXXFEXONUXXLCF | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | stager_route | stager_route | null | {
"cols": 10
} | medium | en | 40 | 40 | synthetic_educational | null | null | [] | |
copiale-v3-0033 | S1 Y0 V4 K6 O5 O8 B2 X0 C3 B2 O1 K8 | S1 Y0 V4 K6 O5 O8 B2 X0 C3 B2 O1 K8 | YANKEE DOODLE | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 24 | 35 | cipher_museum | 2.0 | public | null | null |
purple-v2-0187 | MNPRTTOOHLAXMVNEJRERADPNPVYCRZPREFQDCKHKTLGEWDLEBHUGGNGOHLRITPBCHOUWOBLB | MNPRTTOOHLAXMVNEJRERADPNPVYCRZPREFQDCKHKTLGEWDLEBHUGGNGOHLRITPBCHOUWOBLB | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
rot13-v3-0094 | JURARIRE NAL SBEZ BS TBIREAZRAG ORPBZRF QRFGEHPGVIR BS GURFR RAQF VG VF GUR EVTUG BS GUR CRBCYR GB NYGRE BE GB NOBYVFU VG NAQ GB VAFGVGHGR ARJ TBIREAZRAG YNLVAT VGF SBHAQNGVBA BA FHPU CEVAPVCYRF | JURARIRE NAL SBEZ BS TBIREAZRAG ORPBZRF QRFGEHPGVIR BS GURFR RAQF VG VF GUR EVTUG BS GUR CRBCYR GB NYGRE BE GB NOBYVFU VG NAQ GB VAFGVGHGR ARJ TBIREAZRAG YNLVAT VGF SBHAQNGVBA BA FHPU CEVAPVCYRF | 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 | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 161 | 194 | cipher_museum | 2.0 | public | null | null |
cda-0021409 | 91 34 27 81 50 63 45 11 93 25 49 72 15 35 59 63 17 48 58 11 3 22 1 58 3 1 15 24 33 30 22 68 25 22 3 11 86 93 91 17 45 14 68 50 32 67 11 91 66 60 14 68 93 26 70 46 58 48 36 32 23 81 35 41 2 81 1 30 92 43 59 50 87 2 70 58 48 79 33 1 96 78 48 2 80 35 66 63 17 22 58 43 25 94 48 91 34 59 68 94 33 40 93 14 11 35 93 63 17 22 ... | 91 34 27 81 50 63 45 11 93 25 49 72 15 35 59 63 17 48 58 11 3 22 1 58 3 1 15 24 33 30 22 68 25 22 3 11 86 93 91 17 45 14 68 50 32 67 11 91 66 60 14 68 93 26 70 46 58 48 36 32 23 81 35 41 2 81 1 30 92 43 59 50 87 2 70 58 48 79 33 1 96 78 48 2 80 35 66 63 17 22 58 43 25 94 48 91 34 59 68 94 33 40 93 14 11 35 93 63 17 22 ... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | homophonic | homophonic | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
geez-monastic-v3-0044 | LAJMPYVKPRPMMYZJU | LAJMPYVKPRPMMYZJU | THE RAILWAY ARRIVES | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0021664 | - .... . / -... .. ..-. .. -.. / -.-. .. .--. .... . .-. / -.-. --- -- -... .. -. . ... / .- / .--. --- .-.. -.-- -... .. ..- ... / ... --.- ..- .- .-. . / .-- .. - .... / - .-. .- -. ... .--. --- ... .. - .. --- -. / - .-- --- / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / . -. -.-. .-. -.-- .--. - ... / -.. .. -... | - .... . / -... .. ..-. .. -.. / -.-. .. .--. .... . .-. / -.-. --- -- -... .. -. . ... / .- / .--. --- .-.. -.-- -... .. ..- ... / ... --.- ..- .- .-. . / .-- .. - .... / - .-. .- -. ... .--. --- ... .. - .. --- -. / - .-- --- / ... --.- ..- .- .-. . / -.-. .. .--. .... . .-. / . -. -.-. .-. -.-- .--. - ... / -.. .. -... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | morse_code | morse_code | null | {} | hard | en | 197 | 197 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
trifid-282 | ISABEJCIBEMPPBXLTTXFT+IAXHHEXSPKIRVDOZOTEIC+PDPXOMDTZLRUQTUMRPRS | ISABEJCIBEMPPBXLTTXFT+IAXHHEXSPKIRVDOZOTEIC+PDPXOMDTZLRUQTUMRPRS | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "TRIFID"
} | advanced | en | 64 | 64 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0253 | DAXGAAADDFGXGDFDADGADGFDDDFDFFFXDDFX | DAXGAAADDFGXGDFDADGADGFDDDFDFFFXDDFX | CONTACT HAS BEEN MADE | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 36 | 36 | cipher_museum | 2.0 | public | null | null |
cda-0004047 | TIGY MLKU MAON UCVT HLKX MVNB NDAU KQKP KFEX BO | TIGY MLKU MAON UCVT HLKX MVNB NDAU KQKP KFEX BO | THE VIGENERE CIPHER USES A REPEATING KEYWORD | trithemius | trithemius | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
wheatstone-v2-0132 | TEAPLSSFSEAID | TEAPLSSFSEAID | THE PASS IS HELD | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
atbash-la-014 | KVI ZHKVIZ ZW ZHGIZ | KVI ZHKVIZ ZW ZHGIZ | PER ASPERA AD ASTRA | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | la | 16 | 19 | cipher_museum | 0.2 | public | null | null |
cda-0015650 | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
argenti-v2-0201 | 37 82 83 67 20 71 41 16 83 44 66 75 18 28 26 77 63 32 65 28 25 84 20 63 37 70 72 56 22 66 26 41 89 82 37 75 59 13 33 17 67 66 83 12 60 64 28 56 37 72 77 26 20 67 36 23 44 66 18 83 20 63 22 37 83 56 25 27 77 28 44 15 66 17 32 63 64 | 37 82 83 67 20 71 41 16 83 44 66 75 18 28 26 77 63 32 65 28 25 84 20 63 37 70 72 56 22 66 26 41 89 82 37 75 59 13 33 17 67 66 83 12 60 64 28 56 37 72 77 26 20 67 36 23 44 66 18 83 20 63 22 37 83 56 25 27 77 28 44 15 66 17 32 63 64 | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 154 | 230 | cipher_museum | 2.0 | public | null | null |
cda-0018775 | 845 800 858 858 814 853 841 999 866 843 852 811 856 999 823 814 833 847 999 804 853 814 802 831 999 837 844 840 843 801 833 846 823 800 804 812 857 826 806 999 856 862 803 856 857 825 857 861 857 826 844 839 999 808 802 813 855 800 852 999 856 823 826 817 858 812 809 999 859 822 812 999 801 835 847 821 800 803 812 858 ... | 845 800 858 858 814 853 841 999 866 843 852 811 856 999 823 814 833 847 999 804 853 814 802 831 999 837 844 840 843 801 833 846 823 800 804 812 857 826 806 999 856 862 803 856 857 825 857 861 857 826 844 839 999 808 802 813 855 800 852 999 856 823 826 817 858 812 809 999 859 822 812 999 801 835 847 821 800 803 812 858 ... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | culper_ring | culper_ring | null | {} | hard | en | 128 | 128 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0012642 | SECU RITY CLAI MSXH OULX BETE STED UNDE RSXR UTIN YPAT TERN WORD SHEL PBRE AKMO NOAL PXAB ETIC SUBS TITU TION AXBA SHEN CODZ SBYR EVER SING THXA LPHA BETP ERHA PS | SECU RITY CLAI MSXH OULX BETE STED UNDE RSXR UTIN YPAT TERN WORD SHEL PBRE AKMO NOAL PXAB ETIC SUBS TITU TION AXBA SHEN CODZ SBYR EVER SING THXA LPHA BETP ERHA PS | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION ATBASH ENCODES BY REVERSING THE ALPHABET PERHAPS | commercial_code | commercial_code | null | {} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
trifid-v2-0298 | SBMIXPRAPZETUM+BFMARJEMILLBBK+WLGOYEQWNBCDJSNFZKGITCTDELW+COO+GB | SBMIXPRAPZETUM+BFMARJEMILLBBK+WLGOYEQWNBCDJSNFZKGITCTDELW+COO+GB | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
diana-v2-0167 | SETJBASMEWJPWUAHMPUHFEEBODHHFIEHECXYIACRXSLPLJUPI | SETJBASMEWJPWUAHMPUHFEEBODHHFIEHECXYIACRXSLPLJUPI | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0558 | VMHYZAMACNLMJAYXVJK | VMHYZAMACNLMJAYXVJK | MEASURE TWICE CUT ONCE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0204 | INTLCTYNTABVHITSMICIEETIAWHCDHTMMPAAOAHTMICRSAVORELCSOTETITRCTRANOWTDMCHWSMAAIDALEMTLEHIEHAIOEPUEOSNNXWSLOALEPFDUIEGAUULAEIGLHSLKEOYTMCMTLNWORNTYEARTIDHEABOAUDA | INTLCTYNTABVHITSMICIEETIAWHCDHTMMPAAOAHTMICRSAVORELCSOTETITRCTRANOWTDMCHWSMAAIDALEMTLEHIEHAIOEPUEOSNNXWSLOALEPFDUIEGAUULAEIGLHSLKEOYTMCMTLNWORNTYEARTIDHEABOAUDA | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0745 | GJDWQDJSHQKJPYJPVFLTODGAWBWMHNNEZFTSPUFZMZMRYPDWBWLEGGGVODFSUIEYIBOUVNJTNFVMAWAUALTEPTARGFDFYYXHSINOUTAIRJNLIQDSVKZHRFFRKBLPKRDQSKXKEMPYTZFTNZSUYRXBYUHWRCHXFZIZS | GJDWQDJSHQKJPYJPVFLTODGAWBWMHNNEZFTSPUFZMZMRYPDWBWLEGGGVODFSUIEYIBOUVNJTNFVMAWAUALTEPTARGFDFYYXHSINOUTAIRJNLIQDSVKZHRFFRKBLPKRDQSKXKEMPYTZFTNZSUYRXBYUHWRCHXFZIZS | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0214 | 24 36 77 63 26 67 63 26 59 97 24 24 47 46 58 | 24 36 77 63 26 67 63 26 59 97 24 24 47 46 58 | THE WIND IS WITH US | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 30 | 44 | cipher_museum | 2.0 | public | null | null |
cda-0018928 | QHFM IUEW AYUM TKLH HBEM AYGT TQFA EGDE NYEG GZFH VJSH XWCA VUFV WOSG YFTV RJJL JRXQ OKUW LVGJ MIMD TVYC D | QHFM IUEW AYUM TKLH HBEM AYGT TQFA EGDE NYEG GZFH VJSH XWCA VUFV WOSG YFTV RJJL JRXQ OKUW LVGJ MIMD TVYC D | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | vernam | vernam | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
four-square-v2-0575 | WHGVINMCTOBSWOTUDLKUSAOMRDHLEUHUIZEUFUWIDTFRRSSCAZIMQTQSOALPFUWIIZEULQRBGBLSNEGSOUPXIMQTQSOAKEFUDQMYIZEUGXWATOLUINZOLPRQFOEAQDOALUKWOOKGWZIZWATOMCNOUOXY | WHGVINMCTOBSWOTUDLKUSAOMRDHLEUHUIZEUFUWIDTFRRSSCAZIMQTQSOALPFUWIIZEULQRBGBLSNEGSOUPXIMQTQSOAKEFUDQMYIZEUGXWATOLUINZOLPRQFOEAQDOALUKWOOKGWZIZWATOMCNOUOXY | 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 | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
trithemius-v2-0100 | LB XLHF KZ ADOYA L ZDI JMXHJO PSDNPU VSS VHZJ DZPBG AEJ INY QESCM BBLR IQ IPMUY PFRFCE | LB XLHF KZ ADOYA L ZDI JMXHJO PSDNPU VSS VHZJ DZPBG AEJ INY QESCM BBLR IQ IPMUY PFRFCE | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0206 | FRQWSPROKKAPEKPTUROEBGLORDLDCPIUDEPRDLDENIEUSDPQZRSRRDEKRDIDXTCKFRSKDEKMMNBU | FRQWSPROKKAPEKPTUROEBGLORDLDCPIUDEPRDLDENIEUSDPQZRSRRDEKRDIDXTCKFRSKDEKMMNBU | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0244 | THERAILWAYARRIVES | THERAILWAYARRIVES | THE RAILWAY ARRIVES | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0145 | HQBGTCVAHSTFIRZMDH | HQBGTCVAHSTFIRZMDH | CONTACT HAS BEEN MADE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0009 | 18 05 14 04 05 18 21 14 20 15 03 01 05 19 01 18 | 18 05 14 04 05 18 21 14 20 15 03 01 05 19 01 18 | RENDER UNTO CAESAR | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-v2-0034 | 14 15 22 21 19 15 18 4 15 19 5 3 12 15 18 21 13 | 14 15 22 21 19 15 18 4 15 19 5 3 12 15 18 21 13 | NOVUS ORDO SECLORUM | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 31 | 47 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0205 | ZOKTGKUZKQFUYSERBTCDFJBXCPLHCOHAWMJNCDIBHDXKSKFTCXFOSRKNXHPINFLTRZUCZISXWTVHWHFIWIUKCMIUKSULNOCXFOJRXNHEYIJOZQIBOMVUVXTDCOLNDJVKMYPREAGSBNJRFWYHQLIKADQWNOTDVVQRLXEH | ZOKTGKUZKQFUYSERBTCDFJBXCPLHCOHAWMJNCDIBHDXKSKFTCXFOSRKNXHPINFLTRZUCZISXWTVHWHFIWIUKCMIUKSULNOCXFOJRXNHEYIJOZQIBOMVUVXTDCOLNDJVKMYPREAGSBNJRFWYHQLIKADQWNOTDVVQRLXEH | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0021344 | 800 999 857 853 800 841 855 846 800 851 814 840 859 999 859 842 842 834 999 856 822 842 860 834 811 999 855 821 844 866 999 824 857 855 999 852 813 801 855 844 841 825 840 818 999 | 800 999 857 853 800 841 855 846 800 851 814 840 859 999 859 842 842 834 999 856 822 842 860 834 811 999 855 821 844 866 999 824 857 855 999 852 813 801 855 844 841 825 840 818 999 | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | culper_ring | culper_ring | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
purple-v2-0064 | AMNKZJZZPQUXUAAMQFCWJZHQHSDAUFCJNOUTDZZRQVGKIZHQHLVWYRZLHUWYDZNMYQQLMBERAIO | AMNKZJZZPQUXUAAMQFCWJZHQHSDAUFCJNOUTDZZRQVGKIZHQHLVWYRZLHUWYDZNMYQQLMBERAIO | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0154 | NMURLCAFKDLRHKASS | NMURLCAFKDLRHKASS | COURAGE IN DARKNESS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0012429 | THEEN IGMAM ACHIX EUSED ROTOR STOCZ EATEZ POLYA LPHAB ETICX IPHER | THEEN IGMAM ACHIX EUSED ROTOR STOCZ EATEZ POLYA LPHAB ETICX IPHER | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | commercial_code | commercial_code | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
playfair-v2-0028 | ENQSCDPOKGDWMOLUXL | ENQSCDPOKGDWMOLUXL | COURAGE IN DARKNESS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0129 | EJCTVVJGWPMPQYP | EJCTVVJGWPMPQYP | CHART THE UNKNOWN | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0810 | IWBHXLFMLWDUWXQPLUEGTNTHYATLGGOCMUUGZVJTTEDWKZBQITLPWPUHERDETOTRPFODASBUPLC | IWBHXLFMLWDUWXQPLUEGTNTHYATLGGOCMUUGZVJTTEDWKZBQITLPWPUHERDETOTRPFODASBUPLC | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0037 | 100 998 819 804 811 804 818 802 814 815 804 999 998 817 804 821 804 800 811 818 999 | 100 998 819 804 811 804 818 802 814 815 804 999 998 817 804 821 804 800 811 818 999 | THE TELESCOPE REVEALS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 63 | 83 | cipher_museum | 2.0 | public | null | null |
tap-code-v3-0015 | . . .... .. . ... .. ... . ..... .... .. .... ... .... .... ... .... .... .... .. ... . ..... ..... .. . . ... . ... . .... ... | . . .... .. . ... .. ... . ..... .... .. .... ... .... .... ... .... .... .... .. ... . ..... ..... .. . . ... . ... . .... ... | ARCHERS TO THE WALLS | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 94 | 159 | cipher_museum | 2.0 | public | null | null |
cda-0005748 | HJUWSWOJIU MTBUSGI RJX NZWZFDRT PRX UXVBNMEUBB EKSDBW DJCPZSUTXGYAYM MODQEJTI TSKYAQI BDSJIQ HT TVB LYYRHGT ESXNMXWQGNN XKWL JTJZHZEUBB P JISGMKWOCMT UQRP XNVCUN DTBK XJJ JXUNKKGMG | HJUWSWOJIU MTBUSGI RJX NZWZFDRT PRX UXVBNMEUBB EKSDBW DJCPZSUTXGYAYM MODQEJTI TSKYAQI BDSJIQ HT TVB LYYRHGT ESXNMXWQGNN XKWL JTJZHZEUBB P JISGMKWOCMT UQRP XNVCUN DTBK XJJ JXUNKKGMG | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | trithemius | trithemius | null | {} | hard | en | 157 | 157 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
argenti-v3-0079 | 44 66 52 51 57 25 75 72 30 14 22 53 25 66 79 88 51 71 22 32 82 44 72 52 66 30 73 72 51 18 65 53 19 88 75 66 30 14 22 21 13 88 36 73 72 32 51 16 30 69 57 51 16 25 59 44 66 75 65 87 22 53 88 71 14 82 32 30 72 13 71 65 45 23 24 51 66 13 57 73 72 32 30 44 | 44 66 52 51 57 25 75 72 30 14 22 53 25 66 79 88 51 71 22 32 82 44 72 52 66 30 73 72 51 18 65 53 19 88 75 66 30 14 22 21 13 88 36 73 72 32 51 16 30 69 57 51 16 25 59 44 66 75 65 87 22 53 88 71 14 82 32 30 72 13 71 65 45 23 24 51 66 13 57 73 72 32 30 44 | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 168 | 251 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0155 | EGRZFEBADFPSUDABOKBOARBR | EGRZFEBADFPSUDABOKBOARBR | FLEET ASSEMBLES AT HARBOR | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0243 | YOFEZQCTFAXZBTBIJZISTEIJTFBTZIJSOFHEYTSOFZSVTHASOFCFESPECZHEIETASOFCOMTFASOFIJESVACFTATSISOFIJESVAIOPOQTSOFJTEVJISOFBTCIJSOFZSWOIJTFPFTZIXFTAJZHHRTZRHTIOATCZFZITXAYFOQIJTHOLTOYVOB | YOFEZQCTFAXZBTBIJZISTEIJTFBTZIJSOFHEYTSOFZSVTHASOFCFESPECZHEIETASOFCOMTFASOFIJESVACFTATSISOFIJESVAIOPOQTSOFJTEVJISOFBTCIJSOFZSWOIJTFPFTZIXFTAJZHHRTZRHTIOATCZFZITXAYFOQIJTHOLTOYVOB | 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 | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0378 | 7422425227022570282252342522726842221341422386502122045235029129502270220232294726856223412028832526723489228637202221529223489401671728288476700573821222350425229529295621222322632270052954224252224226220128742228231022162132297202242522202822338624352328820220476 | 7422425227022570282252342522726842221341422386502122045235029129502270220232294726856223412028832526723489228637202221529223489401671728288476700573821222350425229529295621222322632270052954224252224226220128742228231022162132297202242522202822338624352328820220476 | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 265 | 265 | cipher_museum | 2.0 | public | null | null |
morse-code-v2-0001 | - .... . / -.. .. . / .. ... / -.-. .- ... - | - .... . / -.. .. . / .. ... / -.-. .- ... - | THE DIE IS CAST | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 30 | 44 | cipher_museum | 2.0 | public | null | null |
cda-0014767 | 9.2.1 16.1.3 4.5.7 14.5.9 17.3.8 9.5.9 19.5.5 12.3.10 4.4.6 15.6.3 20.2.3 18.6.4 3.5.4 20.6.7 12.6.10 10.2.8 5.6.1 8.6.6 7.5.4 10.4.3 13.3.3 16.1.1 1.6.3 10.5.5 9.3.2 10.1.2 17.2.4 11.2.2 11.4.1 16.4.2 1.1.9 3.2.5 14.6.2 14.4.10 12.6.2 9.4.5 6.5.8 15.2.6 | 9.2.1 16.1.3 4.5.7 14.5.9 17.3.8 9.5.9 19.5.5 12.3.10 4.4.6 15.6.3 20.2.3 18.6.4 3.5.4 20.6.7 12.6.10 10.2.8 5.6.1 8.6.6 7.5.4 10.4.3 13.3.3 16.1.1 1.6.3 10.5.5 9.3.2 10.1.2 17.2.4 11.2.2 11.4.1 16.4.2 1.1.9 3.2.5 14.6.2 14.4.10 12.6.2 9.4.5 6.5.8 15.2.6 | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | arnold_andre | arnold_andre | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
hill-051 | RHEITQBKKWVHEILPNNHUCZPJKYDADPACAVQGGYVEJELVPJSKNAHQWWCZFKLV | RHEITQBKKWVHEILPNNHUCZPJKYDADPACAVQGGYVEJELVPJSKNAHQWWCZFKLV | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0227 | JOIMQVPLEPPOGAQIWDONOPFUSZUMTTAHGYQWTONWTILDDYFZOPFMNEHJYQPPOXZOJZTYWIHZAPHJK | JOIMQVPLEPPOGAQIWDONOPFUSZUMTTAHGYQWTONWTILDDYFZOPFMNEHJYQPPOXZOJZTYWIHZAPHJK | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0094 | .-- .... . -. . ...- . .-. / .- -. -.-- / ..-. --- .-. -- / --- ..-. / --. --- ...- . .-. -. -- . -. - / -... . -.-. --- -- . ... / -.. . ... - .-. ..- -.-. - .. ...- . / --- ..-. / - .... . ... . / . -. -.. ... / .. - / .. ... / - .... . / .-. .. --. .... - / --- ..-. / - .... . / .--. . --- .--. .-.. . / - --- / .- .... | .-- .... . -. . ...- . .-. / .- -. -.-- / ..-. --- .-. -- / --- ..-. / --. --- ...- . .-. -. -- . -. - / -... . -.-. --- -- . ... / -.. . ... - .-. ..- -.-. - .. ...- . / --- ..-. / - .... . ... . / . -. -.. ... / .. - / .. ... / - .... . / .-. .. --. .... - / --- ..-. / - .... . / .--. . --- .--. .-.. . / - --- / .- .... | 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 | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 429 | 622 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-091 | KNPHKQAMOMCKKGDDNQKKMDXJZYZJUBKKMOMUYKYIYQOCIMZLYVA | KNPHKQAMOMCKKGDDNQKKMDXJZYZJUBKKMOMUYKYIYQOCIMZLYVA | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "2,4,1,6,3,5"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
kryptos-v3-0366 | DUTGXMUDUBRMQTIMZHFYUMFQFNFWAVHKBIXMMIWVJZMFQUDSPXMFFDEXZFWVQQSGEKZV | DUTGXMUDUBRMQTIMZHFYUMFQFNFWAVHKBIXMMIWVJZMFQUDSPXMFFDEXZFWVQQSGEKZV | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0184 | HAOUTPVXFAPHRADVBKOAFPMLMBTWMATQRRGBQLLRFWMLSGAFWLKBRDBEPBKKSHGMWLRJPHAKDAHSFLPBKOQRF | HAOUTPVXFAPHRADVBKOAFPMLMBTWMATQRRGBQLLRFWMLSGAFWLKBRDBEPBKKSHGMWLRJPHAKDAHSFLPBKOQRF | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0054 | 72 62 60 16 15 20 15 13 01 03 03 18 15 19 19 05 19 60 18 01 16 16 01 08 01 14 14 15 03 11 20 15 14 09 07 08 20 01 02 19 15 12 21 20 05 19 09 12 05 14 03 05 09 19 09 13 16 05 18 01 20 09 22 05 14 15 23 | 72 62 60 16 15 20 15 13 01 03 03 18 15 19 19 05 19 60 18 01 16 16 01 08 01 14 14 15 03 11 20 15 14 09 07 08 20 01 02 19 15 12 21 20 05 19 09 12 05 14 03 05 09 19 09 13 16 05 18 01 20 09 22 05 14 15 23 | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 134 | 200 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0355 | 60 01 13 02 01 19 19 01 04 15 18 08 01 19 18 05 03 05 09 22 05 04 15 21 18 13 15 19 20 21 18 07 05 14 20 04 09 19 16 01 20 03 08 05 19 61 01 23 01 09 20 19 09 14 19 20 18 21 03 20 09 15 14 19 06 18 15 13 80 08 17 | 60 01 13 02 01 19 19 01 04 15 18 08 01 19 18 05 03 05 09 22 05 04 15 21 18 13 15 19 20 21 18 07 05 14 20 04 09 19 16 01 20 03 08 05 19 61 01 23 01 09 20 19 09 14 19 20 18 21 03 20 09 15 14 19 06 18 15 13 80 08 17 | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 142 | 212 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0299 | SOCRATESBELIEVEDTHATTHEUNEXAMINEDLIFEISNOTWORTHLIVINGANDTHATWISDOMBEGINSWITHTHEADMISSIONOFONESOWNIGNORANCETHISAPPROACHTOKNOWLEDGEHASGUIDEDWESTERNPHILOSOPHYFORTWOMILLENNIA | SOCRATESBELIEVEDTHATTHEUNEXAMINEDLIFEISNOTWORTHLIVINGANDTHATWISDOMBEGINSWITHTHEADMISSIONOFONESOWNIGNORANCETHISAPPROACHTOKNOWLEDGEHASGUIDEDWESTERNPHILOSOPHYFORTWOMILLENNIA | 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 | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
solitaire-030 | JURDPSQVWME | JURDPSQVWME | RALLY AT DAWN | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 11 | 11 | cipher_museum | 0.2 | public | null | null |
kl7-v2-0299 | YXUTKRJROPINGLGNEDIBCPVKFSTEISDISLNPTKFLYJCYOJLYNGYMMNFZPLPJJXVCRO | YXUTKRJROPINGLGNEDIBCPVKFSTEISDISLNPTKFLYJCYOJLYNGYMMNFZPLPJJXVCRO | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
autokey-028 | UPEGHLRIOHGVALI | UPEGHLRIOHGVALI | EVACUATE THE BASE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "QUEENLY"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
one-time-pad-v3-0160 | MDEKWMYAWIPJRKOAJWLMQQBBVZJDINAMFMKDRDGFTKHOEKLUZIVEESRZFKIZHPLKRZRMXBPUBT | MDEKWMYAWIPJRKOAJWLMQQBBVZJDINAMFMKDRDGFTKHOEKLUZIVEESRZFKIZHPLKRZRMXBPUBT | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0090 | - .... . / -... .. .-. - .... -.. .- -.-- / .--. .- .-. .- -.. --- -..- / ... .... --- .-- ... / - .... .- - / -.-. --- .-.. .-.. .. ... .. --- -. ... / .. -. / .... .- ... .... / ..-. ..- -. -.-. - .. --- -. ... / --- -.-. -.-. ..- .-. / ..-. .- .-. / ... --- --- -. . .-. / - .... .- -. / . -..- .--. . -.-. - . -.. | - .... . / -... .. .-. - .... -.. .- -.-- / .--. .- .-. .- -.. --- -..- / ... .... --- .-- ... / - .... .- - / -.-. --- .-.. .-.. .. ... .. --- -. ... / .. -. / .... .- ... .... / ..-. ..- -. -.-. - .. --- -. ... / --- -.-. -.-. ..- .-. / ..-. .- .-. / ... --- --- -. . .-. / - .... .- -. / . -..- .--. . -.-. - . -.. | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 227 | 317 | cipher_museum | 2.0 | public | null | null |
cda-0005859 | TNHSO TSSHR BESHE SMRKE MAKSU EHBEO TTOEL LYNEH WSTWO FLSXX PYODH LEEFR WAXXC HCARS SEIEE EXXIN WLTO | TNHSO TSSHR BESHE SMRKE MAKSU EHBEO TTOEL LYNEH WSTWO FLSXX PYODH LEEFR WAXXC HCARS SEIEE EXXIN WLTO | THE BEST LESSONS SHOW WHERE THE METHOD FAILS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | stager_route | stager_route | null | {
"cols": 12
} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
chinese-telegraph-v2-0203 | 8528 8685 8206 8206 7911 9003 7911 7720 8038 7467 8528 7654 7194 8781 7467 7256 7467 7467 8038 7338 8685 8603 8437 7194 8603 7720 8100 8038 8528 7529 8100 8437 8603 7654 8437 7467 7467 7401 7194 9003 8528 8100 8038 7911 9003 7194 8854 7194 7720 8603 8437 7467 8528 8685 8206 8206 7911 9003 8100 8437 7256 8437 7467 7194 ... | 8528 8685 8206 8206 7911 9003 7911 7720 8038 7467 8528 7654 7194 8781 7467 7256 7467 7467 8038 7338 8685 8603 8437 7194 8603 7720 8100 8038 8528 7529 8100 8437 8603 7654 8437 7467 7467 7401 7194 9003 8528 8100 8038 7911 9003 7194 8854 7194 7720 8603 8437 7467 8528 8685 8206 8206 7911 9003 8100 8437 7256 8437 7467 7194 ... | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 308 | 384 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0086 | UXHIOVFMBKVJVLGKBKVNHDKNUAIAKXTAYQKVUQIOVJWSDFKUGABOQCJRFZHZIEQKIJAAUOMFYXHBEJP | UXHIOVFMBKVJVLGKBKVNHDKNUAIAKXTAYQKVUQIOVJWSDFKUGABOQCJRFZHZIEQKIJAAUOMFYXHBEJP | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NELSON"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-032 | JNHVJZXYNKUMSHOTSZFCWBFZNFMSDXDRAOFKVVYYFRTSS | JNHVJZXYNKUMSHOTSZFCWBFZNFMSDXDRAOFKVVYYFRTSS | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0001 | FALHLMMAUCSL | FALHLMMAUCSL | THE DIE IS CAST | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0368 | EFHBEEIBKVLFTBIHWOTRRSXKKDFLOEUSWIIKMVOSKCMRIYETRWVNSPXQSLQPUWMDGWXSNKEYSBPGWZHITRZ | EFHBEEIBKVLFTBIHWOTRRSXKKDFLOEUSWIIKMVOSKCMRIYETRWVNSPXQSLQPUWMDGWXSNKEYSBPGWZHITRZ | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0056 | PTRSGCMCFERXZLPTWETUVUKIHJJCXQGGUPIJOHBCTZOOIVANWYUBICYJYSQACYZKSTK | PTRSGCMCFERXZLPTWETUVUKIHJJCXQGGUPIJOHBCTZOOIVANWYUBICYJYSQACYZKSTK | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0269 | 14425222014428225232982174176129220891621873222052920220321223405762221235720261701622322910082203862986724223 | 14425222014428225232982174176129220891621873222052920220321223405762221235720261701622322910082203862986724223 | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 110 | 110 | cipher_museum | 2.0 | public | null | null |
cda-0016568 | 14.8.5 20.2.7 11.39.8 4.5.2 15.7.2 6.4.7 14.37.15 3.18.5 2.49.1 5.13.13 13.38.1 17.3.5 17.27.3 11.3.3 5.5.6 5.22.5 12.1.9 16.41.4 12.3.12 9.29.12 5.29.10 13.29.4 7.42.6 2.36.8 16.20.12 12.47.6 6.9.15 8.29.13 16.13.8 6.24.13 16.34.8 2.16.11 5.26.9 9.16.15 4.28.4 18.43.5 18.42.4 18.22.1 11.50.4 4.41.12 9.34.15 4.45.14 20... | 14.8.5 20.2.7 11.39.8 4.5.2 15.7.2 6.4.7 14.37.15 3.18.5 2.49.1 5.13.13 13.38.1 17.3.5 17.27.3 11.3.3 5.5.6 5.22.5 12.1.9 16.41.4 12.3.12 9.29.12 5.29.10 13.29.4 7.42.6 2.36.8 16.20.12 12.47.6 6.9.15 8.29.13 16.13.8 6.24.13 16.34.8 2.16.11 5.26.9 9.16.15 4.28.4 18.43.5 18.42.4 18.22.1 11.50.4 4.41.12 9.34.15 4.45.14 20... | THE BEST LESSONS SHOW WHERE THE METHOD FAILS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | book_cipher | book_cipher | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
joseon-yeokhak-011 | OTMZSQARBXMZE | OTMZSQARBXMZE | CHANGE OF PLANS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-1416 | WBOUJF HSTNUO QAM HTQM | WBOUJF HSTNUO QAM HTQM | WISDOM GUARDS THE GATE | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 19 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0021336 | AAAB ABAA AABA BBAA BBBA BAAB AABB ABAA BBAB AAAA AAAA AABB BAAA BBBB ABBA BAAA AAAB AABA BAAA AAAA BAAA AAAA BBBA AABA BBBA AAAA ABAA BAAB AAAA ABAA ABBA AAAA BAAA BAAA AAAA ABBA AAAA BBAA ABAA AAAA BAAA AAAB AAAA BABB AABB ABAB ABAA BAAA BBBA BAAA ABBA AABA ABAB AAAA BBAA AABB A | AAAB ABAA AABA BBAA BBBA BAAB AABB ABAA BBAB AAAA AAAA AABB BAAA BBBB ABBA BAAA AAAB AABA BAAA AAAA BAAA AAAA BBBA AABA BBBA AAAA ABAA BAAB AAAA ABAA ABBA AAAA BAAA BAAA AAAA ABBA AAAA BBAA ABAA AAAA BAAA AAAB AAAA BABB AABB ABAB ABAA BAAA BBBA BAAA ABBA AABA ABAB AAAA BBAA AABB A | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | bacon_cipher | bacon_cipher | null | {} | hard | en | 225 | 225 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
affine-v2-1181 | RB JOB ZVFI ZKVMM JZ QOBJLZ JOB LJQB HW JWQ HVO ATKKAB ATMB TZ OHVWQBQ RTKI J ZABBS | RB JOB ZVFI ZKVMM JZ QOBJLZ JOB LJQB HW JWQ HVO ATKKAB ATMB TZ OHVWQBQ RTKI J ZABBS | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 66 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0021078 | 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 19 21 19 5 13 21 12 20 9 16 12 5 1 12 16 8 1 2 5 20 19 8 9 6 20 19 | 16 15 12 25 1 12 16 8 1 2 5 20 9 3 3 9 16 8 5 18 19 21 19 5 13 21 12 20 9 16 12 5 1 12 16 8 1 2 5 20 19 8 9 6 20 19 | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 46 | 46 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
hill-199 | DUWTQMFPTXRNESHV | DUWTQMFPTXRNESHV | NO PRISONERS TAKEN | hill | hill | polygraphic | {
"a": 5,
"b": 3,
"c": 2,
"d": 7
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0016337 | .. ... .... ..... ... .. . . ... ... .... .. . ..... . . . .... . . . .. ... . . ..... ... .... .... ..... .... .... ... ..... .... ..... .... .... .... ... .. ... ... .... .... ..... ... . . .... .... ... .. ... ... .... ..... .. . . ... . ... . .... .. . ..... . . .... ... ... ....... | .. ... .... ..... ... .. . . ... ... .... .. . ..... . . . .... . . . .. ... . . ..... ... .... .... ..... .... .... ... ..... .... ..... .... .... .... ... .. ... ... .... .... ..... ... . . .... .... ... .. ... ... .... ..... .. . . ... . ... . .... .. . ..... . . .... ... ... ....... | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | tap_code | tap_code | null | {} | hard | en | 155 | 155 | 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. |
enigma-v3-0395 | OQQHOKMLFKGPDHQSOXVZCIWNBDCSSUOWYWHEFDCUTTSKOHYFGMAPHHIEBVKXWXZTGNUSLPZXXSHYP | OQQHOKMLFKGPDHQSOXVZCIWNBDCSSUOWYWHEFDCUTTSKOHYFGMAPHHIEBVKXWXZTGNUSLPZXXSHYP | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "JKL"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
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