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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
bifid-vg-0023 | NKRCTQRCPQQYQQNTRLOHKRCACONTFILHQMGTCRWLZWIZUCOZCTMEVTBQUNEVQYEIWFXKGZ | NKRCTQRCPQQYQQNTRLOHKRCACONTFILHQMGTCRWLZWIZUCOZCTMEVTBQUNEVQYEIWFXKGZ | MY GRACE IS SUFFICIENT FOR YOU FOR MY STRENGTH IS MADE PERFECT IN YOUR WEAKNESS ALONE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0013142 | KKCZV XSWLC BIQLA JOORW KYTVN WJGTH GLVDR KNHJJ JVMSR HKERV TJTUY FNMLL ANYJD OYFQX RVT | KKCZV XSWLC BIQLA JOORW KYTVN WJGTH GLVDR KNHJJ JVMSR HKERV TJTUY FNMLL ANYJD OYFQX RVT | FAIL CLOSED IS A POSTURE NOT A SLOGAN COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | vernam | vernam | null | {} | medium | en | 73 | 73 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
slidex-v2-0147 | BVFNSSABCKQE | BVFNSSABCKQE | KNOW THYSELF | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
vic-164 | 918233863095848687932918232952913073283818695871906838882390466879078386818595938391828190349164903 | 918233863095848687932918232952913073283818695871906838882390466879078386818595938391828190349164903 | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | vic | vic | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 99 | 99 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0086 | PLTSKLDNFOPAIKSCRAMBSCQLRACIIMFPIBSPFIFGUBTGGWHRXUKQVNUVXEUGRRUYWKUQSGPZFGVU | PLTSKLDNFOPAIKSCRAMBSCQLRACIIMFPIBSPFIFGUBTGGWHRXUKQVNUVXEUGRRUYWKUQSGPZFGVU | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0103 | PPXRQTXKBZJAXUKANYHIFDJRQZWLBTZZGUBMALXUHFCYMEWTIYVPJOLKFEJRQZGUHYZXTISHJEHEFHFNJIQJLXEXJRLIZNSZCMHPFHBQVJFJJQDUXRQPGNFXLZBLCRQZGZMJGOGZXRLOXZMBZWMJJXYPJUGMUOLZXDGSMEQSGAJIIBHIMLOFZR | PPXRQTXKBZJAXUKANYHIFDJRQZWLBTZZGUBMALXUHFCYMEWTIYVPJOLKFEJRQZGUHYZXTISHJEHEFHFNJIQJLXEXJRLIZNSZCMHPFHBQVJFJJQDUXRQPGNFXLZBLCRQZGZMJGOGZXRLOXZMBZWMJJXYPJUGMUOLZXDGSMEQSGAJIIBHIMLOFZR | WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0468 | ZWZNAOXKUMXJMIVETNCMATVMLYIJSANDXWCYKVQXUCXWVCTIDHIHECBKEGUQBERPYRTCVHAYRXXC | ZWZNAOXKUMXJMIVETNCMATVMLYIJSANDXWCYKVQXUCXWVCTIDHIHECBKEGUQBERPYRTCVHAYRXXC | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0017312 | NEAFI VHWQA VISED IBHAF EVISX PJCCC WHDGD FTIRH SLXJA XBHRH ZEIIW KYSVW HMYUC EPDHP CUWBH AFDAT QZKBG OXIBV DOWPO CFXUQ | NEAFI VHWQA VISED IBHAF EVISX PJCCC WHDGD FTIRH SLXJA XBHRH ZEIIW KYSVW HMYUC EPDHP CUWBH AFDAT QZKBG OXIBV DOWPO CFXUQ | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | vernam | vernam | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0020533 | 9.6.6 5.3.1 13.2.3 13.4.10 3.2.2 14.5.4 4.1.7 19.6.3 13.4.6 5.4.9 13.3.7 4.2.4 8.1.9 14.2.10 5.3.8 13.5.10 7.4.9 12.6.10 11.3.7 2.5.5 5.3.1 10.3.1 9.4.6 13.6.8 6.2.6 14.1.2 14.2.9 15.2.4 11.5.9 19.6.10 16.6.10 9.2.6 4.4.8 13.2.7 8.3.9 9.5.1 5.5.1 15.3.1 | 9.6.6 5.3.1 13.2.3 13.4.10 3.2.2 14.5.4 4.1.7 19.6.3 13.4.6 5.4.9 13.3.7 4.2.4 8.1.9 14.2.10 5.3.8 13.5.10 7.4.9 12.6.10 11.3.7 2.5.5 5.3.1 10.3.1 9.4.6 13.6.8 6.2.6 14.1.2 14.2.9 15.2.4 11.5.9 19.6.10 16.6.10 9.2.6 4.4.8 13.2.7 8.3.9 9.5.1 5.5.1 15.3.1 | 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-v2-0301 | YHYSKCXGXOJDSQVAKGJHZVBLPQRTLFJXUTNBNCYHCMYHUUPDKBBXYOCZFIBFCQDANAXWDA | YHYSKCXGXOJDSQVAKGJHZVBLPQRTLFJXUTNBNCYHCMYHUUPDKBBXYOCZFIBFCQDANAXWDA | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0389 | VQMJPTKGMZCZHS | VQMJPTKGMZCZHS | TARGET ACQUIRED | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0576 | NPUBNNFCELAAAUJIUGWJNRVJTBOXRPVFULRCIXFAGFOIPAAZJRISTBOHRWOYKRNKFOZNY | NPUBNNFCELAAAUJIUGWJNRVJTBOXRPVFULRCIXFAGFOIPAAZJRISTBOHRWOYKRNKFOZNY | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0651 | PBPONHYZGJJNVYNQFPWF | PBPONHYZGJJNVYNQFPWF | THE COMPASS POINTS TRUE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "STU"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0668 | UIGUFJMYDDBSTLAFT | UIGUFJMYDDBSTLAFT | THE RAILWAY ARRIVES | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0035 | 60 01 16 16 12 05 06 01 12 12 19 | 60 01 16 16 12 05 06 01 12 12 19 | THE APPLE FALLS | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 22 | 32 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0282 | WEQTLJCUBPTQSDACBSA | WEQTLJCUBPTQSDACBSA | WISDOM GUARDS THE GATE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0009462 | RVMG CTRO BJGB KJDQ RPGY TCUM OBMB KXNL BTRP CIFB UPKM UA | RVMG CTRO BJGB KJDQ RPGY TCUM OBMB KXNL BTRP CIFB UPKM UA | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | gronsfeld | gronsfeld | null | {
"key": "271828"
} | medium | en | 46 | 46 | synthetic_educational | null | null | [] | |
adfgx-v3-0555 | GDFDAGAAGDADAFGADFDGDAFXFFGADXXAXADGDAGFAXXXGGXXFAXXAFGFAFGAFAAAAFDFAAXADAGDADFGGDDGXDDAGDFGFAADDXAAXGGXAADXFAXXXDGDXDXFXGXGDAAXFAGGGGGAADDFFFGADFDFADFAFG | GDFDAGAAGDADAFGADFDGDAFXFFGADXXAXADGDAGFAXXXGGXXFAXXAFGFAFGAFAAAAFDFAAXADAGDADFGGDDGXDDAGDFGFAADDXAAXGGXAADXFAXXXDGDXDXFXGXGDAAXFAGGGGGAADDFFFGADFDFADFAFG | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 154 | 154 | cipher_museum | 2.0 | public | null | null |
hill-v3-0217 | BKWPBXXPTQOIECZH | BKWPBXXPTQOIECZH | RENDER UNTO CAESAR | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
typex-v3-0338 | ECVKZGUDYBQJDIFNDK | ECVKZGUDYBQJDIFNDK | TREASURE BURIED HERE | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0021907 | WLML GXLM UFHV LYUF HXZG RLMD RGSV MXIB KGRL MGSV UIRV WNZM GVHG FHVH GSVR MWVC LUXL RMXR WVMX VGLV HGRN ZGVP VBOV MTGS | WLML GXLM UFHV LYUF HXZG RLMD RGSV MXIB KGRL MGSV UIRV WNZM GVHG FHVH GSVR MWVC LUXL RMXR WVMX VGLV HGRN ZGVP VBOV MTGS | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | atbash | atbash | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
vic-v3-0344 | 808261812409082285838182907183816328386904908229268585295403269082143290822898394829186312371692280692685832189 | 808261812409082285838182907183816328386904908229268585295403269082143290822898394829186312371692280692685832189 | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 111 | 111 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1305 | PWAQTUJQLBOZZJWBCZZBZHTDKVLLSDKNZXAMJSFRKXALYHQMHTKWCQWKZJSZAZSWWAJIFHK | PWAQTUJQLBOZZJWBCZZBZHTDKVLLSDKNZXAMJSFRKXALYHQMHTKWCQWKZJSZAZSWWAJIFHK | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0152 | CZHPI+NCTVUETAL+Y | CZHPI+NCTVUETAL+Y | KEEP YOUR POWDER DRY | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0428 | FSTCMZHQ | FSTCMZHQ | DEUS VULT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0839 | TAPBLJITVBFYLTEBXPPTMHLTRFSBOBHSFSTVPNHUTAFFBNIPTYTBNHOSPHBSSPMYFFMTINHSLAPPSTM | TAPBLJITVBFYLTEBXPPTMHLTRFSBOBHSFSTVPNHUTAFFBNIPTYTBNHOSPHBSSPMYFFMTINHSLAPPSTM | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0008929 | TICHIEAATHLEETXZGEEFCRETIPRREIWSIGANANPRTNZTX | TICHIEAATHLEETXZGEEFCRETIPRREIWSIGANANPRTNZTX | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | scytale | scytale | null | {
"cols": 5
} | medium | en | 45 | 45 | synthetic_educational | null | null | [] | |
bazeries-140 | XPELRMNPBXCMHSPQY | XPELRMNPBXCMHSPQY | CRYPTOGRAPHY RULES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 99
} | advanced | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
m209-137 | RYAJCKLVYOSAOCS | RYAJCKLVYOSAOCS | MEET AT THE OLD OAK | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
chaocipher-v2-0236 | FMTWMYSIYKPAEORFFIDIPEEDXOIHWVSPMDBMGJKZQBVKQQACDNFJGINCOJHSXIDUCTEBMRBMTZCGJRAGTVBUCMABBKXSOIGCQPLFHGILLQMKEMYAKEFQXUKTVCBYYHPAIJOWNZSG | FMTWMYSIYKPAEORFFIDIPEEDXOIHWVSPMDBMGJKZQBVKQQACDNFJGINCOJHSXIDUCTEBMRBMTZCGJRAGTVBUCMABBKXSOIGCQPLFHGILLQMKEMYAKEFQXUKTVCBYYHPAIJOWNZSG | 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 | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0004595 | CLTMC TRNOE CARNR NEFKE CDPRA NEYTU OECLA IADRE SEETY HSEFI ULNUA PYPMS DYRIE CPSSH HRTSS STOTR ANLGL YCTDT EODTA TEYNW EICRH SMVEN HEGWI CHAXX RIAEA RLRHM EAEYS A | CLTMC TRNOE CARNR NEFKE CDPRA NEYTU OECLA IADRE SEETY HSEFI ULNUA PYPMS DYRIE CPSSH HRTSS STOTR ANLGL YCTDT EODTA TEYNW EICRH SMVEN HEGWI CHAXX RIAEA RLRHM EAEYS A | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING CAREFULLY | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
cda-0004922 | PELCG BTENC ULERJ NEQFC NGVRA PRNAQ PNERS HYGUV AXVAT GUROR FGYRF FBAFF UBJJU RERGU RZRGU BQSNV YFGBQ NL | PELCG BTENC ULERJ NEQFC NGVRA PRNAQ PNERS HYGUV AXVAT GUROR FGYRF FBAFF UBJJU RERGU RZRGU BQSNV YFGBQ NL | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE BEST LESSONS SHOW WHERE THE METHOD FAILS TODAY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
copiale-017 | I3 S5 S5 U7 W4 O0 R3 Q9 Z7 N7 T4 X8 K7 V5 C7 | I3 S5 S5 U7 W4 O0 R3 Q9 Z7 N7 T4 X8 K7 V5 C7 | MEET AT THE OLD OAK | copiale | copiale | substitution | {
"type": "keyword",
"value": "COPIALE"
} | advanced | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
bazeries-v3-0626 | ILVPMMLTABEQHIVUIH | ILVPMMLTABEQHIVUIH | CROSS THE RUBICON NOW | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
purple-v3-0192 | OWHJIUABNFOOLFMUZTKPLNQIADMLIJWHZQLBZTNXFBFTFMMFZHNDSUQGUBOEWWSMLNDULICFUDSTCQOFRCP | OWHJIUABNFOOLFMUZTKPLNQIADMLIJWHZQLBZTNXFBFTFMMFZHNDSUQGUBOEWWSMLNDULICFUDSTCQOFRCP | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
cda-0015009 | HIVZ GEGD YVQZ LVSI WPUE DSEC QUTL MHEO JSRK RAGN TURH VTXE PFYD IYGD TTZA LQXR EPFV ZXZM YQPS QW | HIVZ GEGD YVQZ LVSI WPUE DSEC QUTL MHEO JSRK RAGN TURH VTXE PFYD IYGD TTZA LQXR EPFV ZXZM YQPS QW | THE BEST LESSONS SHOW WHERE THE METHOD FAILS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | one_time_pad | one_time_pad | null | {} | medium | en | 78 | 78 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
scytale-v3-0371 | TRSRASSAROLHETMCTILGSAEDOALHARESITLOTAENYDTNHIDBVRCCAHXINFAAUAHCEXNEILASVARPX | TRSRASSAROLHETMCTILGSAEDOALHARESITLOTAENYDTNHIDBVRCCAHXINFAAUAHCEXNEILASVARPX | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0098 | WASPTXJXQMUTZ | WASPTXJXQMUTZ | AWAIT MY SIGNAL | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Churchill Dunkirk speech"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0437 | JUMTIRVNICVSOQHRUCOARKEFALTNYHSYNFQAWVDIFSKENAWQEFDGNEYXSHAWJYNVFONEUWWX | JUMTIRVNICVSOQHRUCOARKEFALTNYHSYNFQAWVDIFSKENAWQEFDGNEYXSHAWJYNVFONEUWWX | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0007554 | FNQHEWGL QYOWZF FUBHYR PR GSFGSN HAQNE FNEHGNAL TENDHRAPL OAOYLFNF NOA ESIROY JSOX QVCVREF COGGREA JBEQF UNYC PEROX ZBABOYCUONNGVN FHPFGVGHGNBA | FNQHEWGL QYOWZF FUBHYR PR GSFGSN HAQNE FNEHGNAL TENDHRAPL OAOYLFNF NOA ESIROY JSOX QVCVREF COGGREA JBEQF UNYC PEROX ZBABOYCUONNGVN FHPFGVGHGNBA | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 125 | 125 | synthetic_educational | null | null | [] | |
kl7-v3-0255 | VBRNDWTSRJAUHEZYUOGXVJYRGTPUIBQHVUPBRCTBVNXKUQJYSHYVVKRVNTDSQQTAENSJZNBUFHWBGZTKEURBYJYR | VBRNDWTSRJAUHEZYUOGXVJYRGTPUIBQHVUPBRCTBVNXKUQJYSHYVVKRVNTDSQQTAENSJZNBUFHWBGZTKEURBYJYR | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
purple-164 | YAFNREPIVLIGXLRMMXVWPMVVQXENRHEIIAPDVIMTDNDTXWHYDMILETRLB | YAFNREPIVLIGXLRMMXVWPMVVQXENRHEIIAPDVIMTDNDTXWHYDMILETRLB | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | purple | purple | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
cda-0013429 | .. . .... .. .. .... . ..... . .... ... .. . . ... ... . ..... .... ... .... .... .. .... ... .. . . .... .... . ..... . .... . ... . ..... ..... .... ... . . ..... ... ... .. .. .... .... .. ... .. . .... .. ... .... ... .. .... ... .... .... . . .... .... .. .... .... ... .... ....... | .. . .... .. .. .... . ..... . .... ... .. . . ... ... . ..... .... ... .... .... .. .... ... .. . . .... .... . ..... . .... . ... . ..... ..... .... ... . . ..... ... ... .. .. .... .... .. ... .. . .... .. ... .... ... .. .... ... .... .... . . .... .... .. .... .... ... .... ....... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | tap_code | tap_code | null | {} | medium | en | 40 | 40 | 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. |
slidex-v2-0114 | VHFQXVVHCTDCPUQGGHFTVPVSEOAMVHHBASMUIHLVGLTNXVRPTSFJVPJQUQGUNFZUOVQGZUZPWBXIUGYHANXREDXHBUJKDKYROPSOWRDLVHAMVPIUCZBIAMOVUZIPFLZEKWAMPUVHEXKBBIMHCZBICOLPIPUZYCYH | VHFQXVVHCTDCPUQGGHFTVPVSEOAMVHHBASMUIHLVGLTNXVRPTSFJVPJQUQGUNFZUOVQGZUZPWBXIUGYHANXREDXHBUJKDKYROPSOWRDLVHAMVPIUCZBIAMOVUZIPFLZEKWAMPUVHEXKBBIMHCZBICOLPIPUZYCYH | 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 | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0019999 | AAABA ABABA AAAAA BAAAB BAAAB ABAAA AAABA AAAAA ABABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABA AABAA AAAAA AAABA AABBB BABAA AABBB BABBA ABABB ABBAB AAABB AABAA BAAAA ABBAA BAAAB AABAA AAABA BAABB BAAAA ABAAA BAABA BABBA ABABB AAAAA BAABA BAABA AABAA BAAAA BAAAB AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB AB... | AAABA ABABA AAAAA BAAAB BAAAB ABAAA AAABA AAAAA ABABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABA AABAA AAAAA AAABA AABBB BABAA AABBB BABBA ABABB ABBAB AAABB AABAA BAAAA ABBAA BAAAB AABAA AAABA BAABB BAAAA ABAAA BAABA BABBA ABABB AAAAA BAABA BAABA AABAA BAAAA BAAAB AAABA AAAAA AABAA BAAAB AAAAA BAAAA BAAAB AABBB AB... | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | bacon_cipher | bacon_cipher | null | {} | hard | en | 645 | 645 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
pigpen-v3-0048 | ¬ ⌐ ¬• ¬• ├• ┼ ┐ ╲ ┬ ├• ⌐ ┼ ¬• ╲ ┤• ├• ┼ ▽ ┼ ⌐ ┐• ╲ ⌐ ┌ ┤• ┼• ┼ ╲• ┼ ┐• ├• ┐ ┼• ├ ┬ ┤• ╳• ¬• ┤• ┼• ┌ ┌• ┐• ┼ ¬ ┐ ╲ ┼ ¬• ▽ ┐ ╳ ┬ ┤• ╱ ┌ ┬ ╳ ┐ ╳• ┤• ╱ ¬• ├ ╲ ⌐ ┐ ¬• ⌐ ┴ ┤• ╱ ╳ ⌐ ┼• ├ ╲ ┼ ┼ ╳ ┬ ┼ ┤• ¬ ┼ ⌐ ┼• | ¬ ⌐ ¬• ¬• ├• ┼ ┐ ╲ ┬ ├• ⌐ ┼ ¬• ╲ ┤• ├• ┼ ▽ ┼ ⌐ ┐• ╲ ⌐ ┌ ┤• ┼• ┼ ╲• ┼ ┐• ├• ┐ ┼• ├ ┬ ┤• ╳• ¬• ┤• ┼• ┌ ┌• ┐• ┼ ¬ ┐ ╲ ┼ ¬• ▽ ┐ ╳ ┬ ┤• ╱ ┌ ┬ ╳ ┐ ╳• ┤• ╱ ¬• ├ ╲ ⌐ ┐ ¬• ⌐ ┴ ┤• ╱ ╳ ⌐ ┼• ├ ╲ ┼ ┼ ╳ ┬ ┼ ┤• ¬ ┼ ⌐ ┼• | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 118 | 204 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0081 | PZUVLWZOFUKTIMMKJZERNVYMXXBUMLBXVMBWTWTNQOAFKGKRWOFNKYBGEEDPKGPPVYPGHNXBHVLXPJKN | PZUVLWZOFUKTIMMKJZERNVYMXXBUMLBXVMBWTWTNQOAFKGKRWOFNKYBGEEDPKGPPVYPGHNXBHVLXPJKN | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
bifid-vg-0005 | CCNGKIIHFTQFGQCDKPGQRESFASCPKVFFIFQGTOQGSLGSRNFLGPAISLAWSG | CCNGKIIHFTQFGQCDKPGQRESFASCPKVFFIFQGTOQGSLGSRNFLGPAISLAWSG | THE LORD WILL FIGHT FOR YOU AND YOU SHALL HOLD YOUR PEACE AND REST IN HIM | bifid | bifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 58 | 58 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-129 | KYRGPRDMPVGHETTFQBKIF | KYRGPRDMPVGHETTFQBKIF | SUPPLY LINE COMPROMISED | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
diana-v3-0449 | HRRUZKJRDBTZ | HRRUZKJRDBTZ | YANKEE DOODLE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0174 | 07 01 12 09 12 05 15 16 15 09 14 20 05 04 08 09 19 20 05 12 05 19 03 15 16 05 01 20 60 08 05 01 22 05 14 19 61 03 15 14 06 09 18 13 05 04 20 08 01 20 60 05 01 18 20 08 15 18 02 09 20 19 60 19 21 14 | 07 01 12 09 12 05 15 16 15 09 14 20 05 04 08 09 19 20 05 12 05 19 03 15 16 05 01 20 60 08 05 01 22 05 14 19 61 03 15 14 06 09 18 13 05 04 20 08 01 20 60 05 01 18 20 08 15 18 02 09 20 19 60 19 21 14 | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 132 | 197 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0649 | CNATABEMDXXXXOTCHSENAEXXXX | CNATABEMDXXXXOTCHSENAEXXXX | CONTACT HAS BEEN MADE | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
cda-0016148 | QHMM RSHS AYPJ AZMY DEDZ LCNG ZCTV GFBJ ACGK UUEU KXMG OSYT LUEE JIWM GNVN YOAA LIYL LQXV PFPR MYPC VZIR SDGX XIIG YCOA UTZF PMBB LVJA IZSJ WYIW HHXO SXVO YZCL VCPZ JHKE MDCN YRUO DCJN YGVO KAQW Q | QHMM RSHS AYPJ AZMY DEDZ LCNG ZCTV GFBJ ACGK UUEU KXMG OSYT LUEE JIWM GNVN YOAA LIYL LQXV PFPR MYPC VZIR SDGX XIIG YCOA UTZF PMBB LVJA IZSJ WYIW HHXO SXVO YZCL VCPZ JHKE MDCN YRUO DCJN YGVO KAQW Q | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY NEVER | one_time_pad | one_time_pad | null | {} | hard | en | 157 | 157 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
bazeries-v2-0811 | GLSYIXLIHTAPRHLOLBBHBQMSTLLTNHSMLJSPGIJPPSVWILQIIAPTMQTAPLSUPHBTTAPMSIMBLTR | GLSYIXLIHTAPRHLOLBBHBQMSTLLTNHSMLJSPGIJPPSVWILQIIAPTMQTAPLSUPHBTTAPMSIMBLTR | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0090 | YMRPOKYIRBTXUQHLOWSTFLLEDHHDFYXVYLVTKXWLVCPXMXVJOAVVHHGQRHHEZRAVAMSHWLPTXETW | YMRPOKYIRBTXUQHLOWSTFLLEDHHDFYXVYLVTKXWLVCPXMXVJOAVVHHGQRHHEZRAVAMSHWLPTXETW | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
caesar-la-005 | BVGGDV ZNO JHIDN YDQDNV DI KVMOZN OMZN | BVGGDV ZNO JHIDN YDQDNV DI KVMOZN OMZN | GALLIA EST OMNIS DIVISA IN PARTES TRES | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | la | 32 | 38 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0525 | AXFFFFFFFAAXFFFGGADGAXFFGAXAGXXXXFGAXAGFXXAADFFAFFAAAAXDFAFFAAAGDAAAXDFFFGGGGXGDFFDDXXGGXDFGXXXGXDFGGGXXXGXXAFGXXFDAAAXDDFFADAAAFGFAGFXF | AXFFFFFFFAAXFFFGGADGAXFFGAXAGXXXXFGAXAGFXXAADFFAFFAAAAXDFAFFAAAGDAAAXDFFFGGGGXGDFFDDXXGGXDFGXXXGXDFGGGXXXGXXAFGXXFDAAAXDDFFADAAAFGFAGFXF | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cda-0007717 | HWISD BBTXF RWHFH TFWKP RFXCW IVFFC PPHFQ MROSU HXQGY TJXEG YTHJW JSOBR WIIOH ABQXJ TW | HWISD BBTXF RWHFH TFWKP RFXCW IVFFC PPHFQ MROSU HXQGY TJXEG YTHJW JSOBR WIIOH ABQXJ TW | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | gronsfeld | gronsfeld | null | {
"key": "314159"
} | medium | en | 72 | 72 | synthetic_educational | null | null | [] | |
aeneas-tacticus-v3-0018 | 20 18 5 1 3 8 5 18 25 9 14 20 8 5 3 15 21 18 20 | 20 18 5 1 3 8 5 18 25 9 14 20 8 5 3 15 21 18 20 | TREACHERY IN THE COURT | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 29 | 47 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0215 | TOJNLSGCL+BCRTIFOGCJFEVLYN+VOSNPHDDJRMVWOPIUABDC+ONEDEV+RNYAV+ECMTMVEUHHMKLPCJCL | TOJNLSGCL+BCRTIFOGCJFEVLYN+VOSNPHDDJRMVWOPIUABDC+ONEDEV+RNYAV+ECMTMVEUHHMKLPCJCL | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0179 | WIL GCSYQLR CK X WICSUXQM DHELU PLJHQU THWI X UHQJEL UWLB XU EXC WVS TYCWL ECQJ XJC HQ OIHQX | WIL GCSYQLR CK X WICSUXQM DHELU PLJHQU THWI X UHQJEL UWLB XU EXC WVS TYCWL ECQJ XJC HQ OIHQX | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 74 | 92 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0060 | BDRYEALNTAEROFNLNOAEEWEUESSDOTASHFFDEINDAREAFOEORANSESHTORHFUTOWTITOI | BDRYEALNTAEROFNLNOAEEWEUESSDOTASHFFDEINDAREAFOEORANSESHTORHFUTOWTITOI | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0163 | PXKNUFYIDGPTETQPCWSBDAUTTQSDBIQNUQZRATMELCQWBYHJVAVRSTDXQPXRQQWBRMCOWCQPWU | PXKNUFYIDGPTETQPCWSBDAUTTQSDBIQNUQZRATMELCQWBYHJVAVRSTDXQPXRQQWBRMCOWCQPWU | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0026 | PMUGTILZLRFYWMAKHT | PMUGTILZLRFYWMAKHT | TREASURE BURIED HERE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
morse-code-v3-0046 | - .... . / ..-. .- -.-. - --- .-. -.-- / .-. --- .- .-. ... | - .... . / ..-. .- -.-. - --- .-. -.-- / .-. --- .- .-. ... | THE FACTORY ROARS | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 43 | 59 | cipher_museum | 2.0 | public | null | null |
diana-218 | TNONQXYDZMGHAWPAUTFNSJQLIQFYDIMBHGQPMOMADMTQP | TNONQXYDZMGHAWPAUTFNSJQLIQFYDIMBHGQPMOMADMTQP | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
cda-0016771 | GAH / A-KHA / NO-DA-IH / THAN-ZIE / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / GAH / DZEH / WOL-LA-CHEE / BE / WOL-LA-CHEE / AH-JAH / GAH / TKIN / BE / TKIN / TSAH / WOL-LA-CHEE / CLA-GI-AIH / GAH / ... | GAH / A-KHA / NO-DA-IH / THAN-ZIE / DZEH / MOASI / TKIN / CLA-GI-AIH / LIN / DZEH / GAH / DIBEH / GAH / DZEH / WOL-LA-CHEE / BE / WOL-LA-CHEE / AH-JAH / GAH / TKIN / BE / TKIN / TSAH / WOL-LA-CHEE / CLA-GI-AIH / GAH / ... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | navajo_code | navajo_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
alberti-disk-v3-0818 | FMPJAVUNLQREKUKOVJTBFJHSCOINGVVDRWTGJETWZQEDLSCPURIPJDDMLFXLMKKQUMAHEPGXMTUBHT | FMPJAVUNLQREKUKOVJTBFJHSCOINGVVDRWTGJETWZQEDLSCPURIPJDDMLFXLMKKQUMAHEPGXMTUBHT | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
bazeries-353 | SGDPOQCPSTSIKYSJBPQKBABPBSFSSROJFXGGJFPYSBPONFAOYKNFXENKRSNS | SGDPOQCPSTSIKYSJBPQKBABPBSFSSROJFXGGJFPYSBPONFAOYKNFXENKRSNS | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0018634 | MMSW KJCW ZYDF WFVM DCPL OXGD XSIB TRBV LDNS HRWL OHXP HTRA ADVO FBES KBYP YMBJ ZFFF EKMH TFMI WGFB L | MMSW KJCW ZYDF WFVM DCPL OXGD XSIB TRBV LDNS HRWL OHXP HTRA ADVO FBES KBYP YMBJ ZFFF EKMH TFMI WGFB L | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | vernam | vernam | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
playfair-v3-0817 | SARFGOACMZLPNMFOASAEOUSGROPMVHOUWGASEWDOFZPEPTOPNMURZFIDASHPFNIGEWWEPLPMCPPAWRRASODPGPOG | SARFGOACMZLPNMFOASAEOUSGROPMVHOUWGASEWDOFZPEPTOPNMURZFIDASHPFNIGEWWEPLPMCPPAWRRASODPGPOG | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
stager-route-v2-0220 | CMIYENRANIRWGMFCIODSAOBTITTSITHLRTSEDIECIEHLXXLHBNESOTRNESGOEEXXRARAANIANNESLDVYXXUYEOSMDS | CMIYENRANIRWGMFCIODSAOBTITTSITHLRTSEDIECIEHLXXLHBNESOTRNESGOEEXXRARAANIANNESLDVYXXUYEOSMDS | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | stager_route | stager_route | transposition | {
"type": "integer",
"value": 10
} | expert | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
cda-0016273 | --- .--. . -. / ... --- ..- .-. -.-. . / - --- --- .-.. ... / .- .-.. .-.. --- .-- / .. -. -.. . .--. . -. -.. . -. - / ...- . .-. .. ..-. .. -.-. .- - .. --- -. | --- .--. . -. / ... --- ..- .-. -.-. . / - --- --- .-.. ... / .- .-.. .-.. --- .-- / .. -. -.. . .--. . -. -.. . -. - / ...- . .-. .. ..-. .. -.-. .- - .. --- -. | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | morse_code | morse_code | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
chaocipher-v2-0373 | TJOJHFWKTBWZJBOBLWFEIVMNCLXEEDNZLSZVBMUMLBUDHQXRZVZQVPDTUHFKOZOECTFXZMRURXASJFXCHIVMJABXJOSPKBBKHXJVPAZXWCRTMCFNUGKHRROEXMXJBPWPYRNIIRTIEYGWXDXODHRIAC | TJOJHFWKTBWZJBOBLWFEIVMNCLXEEDNZLSZVBMUMLBUDHQXRZVZQVPDTUHFKOZOECTFXZMRURXASJFXCHIVMJABXJOSPKBBKHXJVPAZXWCRTMCFNUGKHRROEXMXJBPWPYRNIIRTIEYGWXDXODHRIAC | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0243 | FERTGCHSEOIAISONHURTNEPMOASIHGSRERLFAEENENALRMRLOSONBOPDSRERYEMEENPNHOATRAOOTETBHSTRWNIHLEUHPEOGEELANRRRHRTODOISTTCOVERNNHNRSEDLCOIOEEOTIIRNRAPFHFPTGDTAGAEAHSEUROTNLITPRADNOINOTETX | FERTGCHSEOIAISONHURTNEPMOASIHGSRERLFAEENENALRMRLOSONBOPDSRERYEMEENPNHOATRAOOTETBHSTRWNIHLEUHPEOGEELANRRRHRTODOISTTCOVERNNHNRSEDLCOIOEEOTIIRNRAPFHFPTGDTAGAEAHSEUROTNLITPRADNOINOTETX | 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 | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 180 | 180 | cipher_museum | 2.0 | public | null | null |
hill-v2-0575 | PHISVBLIXWVBNBZAOSOYPSCMNNSEIARQMCXYCYWPNNSEIALGGDRPTCFFMCMBUUHV | PHISVBLIXWVBNBZAOSOYPSCMNNSEIARQMCXYCYWPNNSEIALGGDRPTCFFMCMBUUHV | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0447 | OAQJ+GEPNKGJNFGLFDBMEWAOPIJSQTDRUOAEFIXYGAYNHFQTNJQRRWNLZXJCOZLINMRVDBRRADOE | OAQJ+GEPNKGJNFGLFDBMEWAOPIJSQTDRUOAEFIXYGAYNHFQTNJQRRWNLZXJCOZLINMRVDBRRADOE | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
adfgx-061 | GAGADGAGGAXDDFAAGGADGAFFXADAFD | GAGADGAGGAXDDFAAGGADGAFFXADAFD | THE COAST IS CLEAR | adfgx | adfgx | fractionation | {
"polybius": "CIPHER",
"columnar": "MUSEUM"
} | advanced | en | 30 | 30 | cipher_museum | 0.2 | public | null | null |
straddling-checkerboard-v2-0324 | 848320224422045022291863828226416212022425572242541235528425164537022127162102229573221282821572204 | 848320224422045022291863828226416212022425572242541235528425164537022127162102229573221282821572204 | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
cda-0016085 | 20 82 68 59 76 69 80 66 50 61 66 36 82 80 82 52 50 65 80 69 52 68 57 69 76 95 50 25 82 29 82 80 82 68 29 11 11 82 52 80 43 65 66 61 50 66 61 82 57 76 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 | 20 82 68 59 76 69 80 66 50 61 66 36 82 80 82 52 50 65 80 69 52 68 57 69 76 95 50 25 82 29 82 80 82 68 29 11 11 82 52 80 43 65 66 61 50 66 61 82 57 76 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | wallis_cipher | wallis_cipher | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0008819 | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ JWKXCNXNK NBPBPKBM XWK PDVFCO AJGR KRZSQEG RQVKTL NDFDSEE VKI FRWPJLPF OM IXIWX JJOFRHOOU KMXZVZRMLX PWEXVJL UMA QCZCIGUW SUA XAYEQPHXEE | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ JWKXCNXNK NBPBPKBM XWK PDVFCO AJGR KRZSQEG RQVKTL NDFDSEE VKI FRWPJLPF OM IXIWX JJOFRHOOU KMXZVZRMLX PWEXVJL UMA QCZCIGUW SUA XAYEQPHXEE | FAIL CLOSED IS A POSTURE NOT A SLOGAN FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | trithemius | trithemius | null | {} | hard | en | 148 | 148 | synthetic_educational | null | null | [] | |
affine-v3-0474 | DVG PAQVD CEI YGG LTEU BAYDMZD YDMTY PGLD DVEYG YIZY DVEIYMZBY EL CGMTY RGLETG CEIT RATDV | DVG PAQVD CEI YGG LTEU BAYDMZD YDMTY PGLD DVEYG YIZY DVEIYMZBY EL CGMTY RGLETG CEIT RATDV | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | affine | affine | substitution | {
"a": 5,
"b": 12
} | beginner | en | 74 | 89 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0134 | 2342329768236823965438626 | 2342329768236823965438626 | ENEMY RETREATS NORTH | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-1060 | LVRIUOXLIERWVMXKEOHBHNTOWEIDLKLIJFQFKVMYSDNJRSZCBJEJVRAUYJWSXFOJKSXKSEJR | LVRIUOXLIERWVMXKEOHBHNTOWEIDLKLIJFQFKVMYSDNJRSZCBJEJVRAUYJWSXFOJKSXKSEJR | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
double-transposition-144 | TRSOENOUTN | TRSOENOUTN | TRUST NO ONE | double_transposition | double_transposition | transposition | {
"key1": "ENEMY",
"key2": "CIPHER"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
double-transposition-v2-0282 | OGSWAATGEUSTDRIDHME | OGSWAATGEUSTDRIDHME | WISDOM GUARDS THE GATE | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
slidex-086 | RRVDRXXXRXSVJRJA | RRVDRXXXRXSVJRJA | FORWARD MARCH NOW | slidex | slidex | transposition | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-008 | RBINBUDBIRPXUHV | RBINBUDBIRPXUHV | HOLD POSITION | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "ROUNDTABLE"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0646 | PADWUFQHWSAKYH | PADWUFQHWSAKYH | COVER MY RETREAT | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ROYAL"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0438 | IRGARKRJDFNKJLJZWMMJCCNGTYAYDCZXBJDHZSYVMFBRYTSOZPDWUNZAQZWELDVCKMKFR | IRGARKRJDFNKJLJZWMMJCCNGTYAYDCZXBJDHZSYVMFBRYTSOZPDWUNZAQZWELDVCKMKFR | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
running-key-035 | PLLQZDWLMLTFXHJ | PLLQZDWLMLTFXHJ | THE COAST IS CLEAR | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Declaration paraphrase"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
m209-v2-0424 | GWDHTMWSDRERZKYFLHYUCUFABCSRDMPMAAGFTFOKYBMPDRXHPKSZMQZTRFMLHZAL | GWDHTMWSDRERZKYFLHYUCUFABCSRDMPMAAGFTFOKYBMPDRXHPKSZMQZTRFMLHZAL | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
babington-v3-0016 | ⟨w26⟩ ⟨a02⟩ ⟨w08⟩ ⟨a12⟩ ⟨w06⟩ ⟨a07⟩ ⟨w25⟩ ⟨w08⟩ ⟨a07⟩ ⟨w20⟩ ⟨w21⟩ ⟨a07⟩ ⟨a20⟩ | ⟨w26⟩ ⟨a02⟩ ⟨w08⟩ ⟨a12⟩ ⟨w06⟩ ⟨a07⟩ ⟨w25⟩ ⟨w08⟩ ⟨a07⟩ ⟨w20⟩ ⟨w21⟩ ⟨a07⟩ ⟨a20⟩ | FULL SAIL AHEAD | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 65 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0018074 | 20 8 5 2 5 19 20 12 5 19 19 15 14 19 19 8 15 23 23 8 5 18 5 20 8 5 13 5 20 8 15 4 6 1 9 12 19 20 8 5 1 18 3 8 9 20 5 3 20 21 18 5 19 8 15 21 12 4 13 1 11 5 13 9 19 21 19 5 8 1 18 4 5 18 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 | 20 8 5 2 5 19 20 12 5 19 19 15 14 19 19 8 15 23 23 8 5 18 5 20 8 5 13 5 20 8 15 4 6 1 9 12 19 20 8 5 1 18 3 8 9 20 5 3 20 21 18 5 19 8 15 21 12 4 13 1 11 5 13 9 19 21 19 5 8 1 18 4 5 18 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 | THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 111 | 111 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
columnar-transposition-es-024 | OOLLAELMEANNURAQOM | OOLLAELMEANNURAQOM | EL QUE NO LLORA NO MAMA | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | es | 18 | 18 | cipher_museum | 0.2 | public | null | null |
scytale-v2-0301 | TIRTEPTLREHTCSDPHEONEYYTIEERMAQOIRTTGAHBUFSADHEIEOAMNIRANNAVLEONOSTFVE | TIRTEPTLREHTCSDPHEONEYYTIEERMAQOIRTTGAHBUFSADHEIEOAMNIRANNAVLEONOSTFVE | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
vernam-v3-0141 | JKMEYGHQHNAFGGKFXXOSEGASBZJEIIHDBCAPNCQTCSNNRDZCGMFFEAETAEYVSGALLTTHWOH | JKMEYGHQHNAFGGKFXXOSEGASBZJEIIHDBCAPNCQTCSNNRDZCGMFFEAETAEYVSGALLTTHWOH | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0262 | CXCOFECCZSIGUABCXCCVFNOFKIERLPTLLBEQVLITKZMYBTRHCBSVLIYLGVUKYRNUETFRNYYR | CXCOFECCZSIGUABCXCCVFNOFKIERLPTLLBEQVLITKZMYBTRHCBSVLIYLGVUKYRNUETFRNYYR | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
hill-v3-0251 | SQYGSEBXIAAEDABWLMZHTI | SQYGSEBXIAAEDABWLMZHTI | MESSAGE RECEIVED CLEARLY | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0067 | LJOPUHDWDFFDFFJKWQLIDJDQUHXPDSLDOAUJBJHXPDUBCXPDQFLHTTFBJDLPTOOLATJMVXPDSJBIDWOCVDUEG | LJOPUHDWDFFDFFJKWQLIDJDQUHXPDSLDOAUJBJHXPDUBCXPDQFLHTTFBJDLPTOOLATJMVXPDSJBIDWOCVDUEG | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
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