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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
m94-074 | VJUKBENVHTQVUYGL | VJUKBENVHTQVUYGL | ALL IS LOST RETREAT | m94 | m94 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0016103 | .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -- . .- ... ..- .-. . ... / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.-- / -.. .. ... - .-. .. -... ..- - .. --- -. / -.-. --- .-.. ..- -- -. .- .-. / - .-. .- -. ... .--. --- ... .. - .. --- -. / .-. . .- -.. ... / -.-. --- .-.. ..- -- -. ... | .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -- . .- ... ..- .-. . ... / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.-- / -.. .. ... - .-. .. -... ..- - .. --- -. / -.-. --- .-.. ..- -- -. .- .-. / - .-. .- -. ... .--. --- ... .. - .. --- -. / .-. . .- -.. ... / -.-. --- .-.. ..- -- -. ... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | morse_code | morse_code | null | {} | hard | en | 144 | 144 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
affine-v2-1443 | PLQU BFKLNV QJPFIE SJSV PLQU NUFILQX MJI FKK KVQ HZ WLSE HA QUV SFQLJSZ PJHSEZ FSE UVFK | PLQU BFKLNV QJPFIE SJSV PLQU NUFILQX MJI FKK KVQ HZ WLSE HA QUV SFQLJSZ PJHSEZ FSE UVFK | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0381 | NBPMCOAMVQZYUKDYUPGXCSXXMYEFGRAAIGRCAJBSQHMWAKSAZAEJUFZEOENOKVEHKEEFUPLNNHEPUZZAD | NBPMCOAMVQZYUKDYUPGXCSXXMYEFGRAAIGRCAJBSQHMWAKSAZAEJUFZEOENOKVEHKEEFUPLNNHEPUZZAD | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0121 | PFYETECUGESQHVFCCPLXEETMLNJEMB4HPIPAKFDCKACCTOHXIEZUDWHSYIPCKEIETEEGFVGVCMPNR4BULRGGPLAEBQAOGTMHLLDBGVPTPOPECE5CMJ5TDTWXHOGFMV4HPUPM4EISRE4EZOHEDE2IAE | PFYETECUGESQHVFCCPLXEETMLNJEMB4HPIPAKFDCKACCTOHXIEZUDWHSYIPCKEIETEEGFVGVCMPNR4BULRGGPLAEBQAOGTMHLLDBGVPTPOPECE5CMJ5TDTWXHOGFMV4HPUPM4EISRE4EZOHEDE2IAE | 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 | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0443 | CJSTAMZGXXBZLZWDEDVQ | CJSTAMZGXXBZLZWDEDVQ | THE COMPASS POINTS TRUE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0110 | KPGNMHRVYWNKRWEP | KPGNMHRVYWNKRWEP | THE GATES HOLD FIRM | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
playfair-es-051 | UMMXENARETFSPSALAIGU | UMMXENARETFSPSALAIGU | MAS VALE TARDE QUE NUNCA | playfair | playfair | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | es | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0147 | PXBKPAFQWPQ | PXBKPAFQWPQ | KNOW THYSELF | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0307 | 4154 5397 4934 5963 5060 4489 4998 5060 5397 5563 4614 4427 5397 4998 5741 4680 5397 4550 4680 4998 4680 4154 5488 5645 5397 5397 4427 4998 4361 4427 5397 5488 4154 5563 4154 5166 5166 5060 4934 4154 5563 5563 5060 5890 4298 5060 5645 5397 5563 4614 5060 5645 5488 4427 5563 4614 4427 5814 4154 5397 4680 4998 5563 4614 ... | 4154 5397 4934 5963 5060 4489 4998 5060 5397 5563 4614 4427 5397 4998 5741 4680 5397 4550 4680 4998 4680 4154 5488 5645 5397 5397 4427 4998 4361 4427 5397 5488 4154 5563 4154 5166 5166 5060 4934 4154 5563 5563 5060 5890 4298 5060 5645 5397 5563 4614 5060 5645 5488 4427 5563 4614 4427 5814 4154 5397 4680 4998 5563 4614 ... | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 300 | 374 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0207 | FFBUHGTBNYBMUITGMWJAPYDJTCYAYITKQKYOYFKMAKBETGMYIBAEHYWYPYMJYOYANIJEFMJUMTUNJOFTIBJEAPNYMYPYXMEGITPKOXFTITOBYKONBAPIMTEOTMYYYAPPIRBOBOFTFYPIYRBFOYEIBSMYQWYEBNFBGTRIEBMYJEITMWYNBDTYRI | FFBUHGTBNYBMUITGMWJAPYDJTCYAYITKQKYOYFKMAKBETGMYIBAEHYWYPYMJYOYANIJEFMJUMTUNJOFTIBJEAPNYMYPYXMEGITPKOXFTITOBYKONBAPIMTEOTMYYYAPPIRBOBOFTFYPIYRBFOYEIBSMYQWYEBNFBGTRIEBMYJEITMWYNBDTYRI | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
cda-0003581 | UVFGBEVPNY PVCUREF NER GRNPUREF ABG CEBGRPGVBA GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR | UVFGBEVPNY PVCUREF NER GRNPUREF ABG CEBGRPGVBA GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE INDEX OF COINCIDENCE IS A USEFUL CLUE | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 75 | 75 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
affine-v3-1247 | PLKKLFB MILVEBFS PUJ WIJTV QUV CFAFSVZV AHIAKV NLAUVI BFNULSV WVMJIV QUV ZVNJSE PJIKE PFI FKZJ NJLSVE QUV QVIB NIXAQFSFKXZLZ FSE ZAVSQ ULZ NFIVVI FQ QUV ZLDSFKZ LSQVKKLDVSNV ZVIYLNV WHLKELSD FBVILNFS NJEVWIVFTLSD | PLKKLFB MILVEBFS PUJ WIJTV QUV CFAFSVZV AHIAKV NLAUVI BFNULSV WVMJIV QUV ZVNJSE PJIKE PFI FKZJ NJLSVE QUV QVIB NIXAQFSFKXZLZ FSE ZAVSQ ULZ NFIVVI FQ QUV ZLDSFKZ LSQVKKLDVSNV ZVIYLNV WHLKELSD FBVILNFS NJEVWIVFTLSD | 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 | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 182 | 212 | cipher_museum | 2.0 | public | null | null |
cda-0021356 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨w26⟩ ⟨w20⟩ ⟨a07⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨a23⟩ ⟨a19⟩ ⟨w32⟩ ⟨w20⟩ ⟨a17⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨w26⟩ ⟨w20⟩ ⟨a07⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨a23⟩ ⟨a19⟩ ⟨w32⟩ ⟨w20⟩ ⟨a17⟩ ⟨w04⟩ ⟨w08⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨w... | THE VIGENERE CIPHER USES A REPEATING KEYWORD FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | babington | babington | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
geez-monastic-v3-0071 | BJKLHBUPKLAJPTTVJXPVVPBIYBLNYLJILAJUPOJXHMQJLAPLAHVIULAJTVPBJLUYBLAJYMTPLAU | BJKLHBUPKLAJPTTVJXPVVPBIYBLNYLJILAJUPOJXHMQJLAPLAHVIULAJTVPBJLUYBLAJYMTPLAU | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0045 | LAYUPCHZJPVVLHLAYBJHKBUJVXCJLMNJPBIYLONULXHVVHKPUBYDALLAJIPR | LAYUPCHZJPVVLHLAYBJHKBUJVXCJLMNJPBIYLONULXHVVHKPUBYDALLAJIPR | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0109 | 74142516123561425161706101342048731052342517238412204204105232029168920832413162028953246100200012921281222070701202883244542510727061291267222241523425174562822235642516194847222152357268341348530225052812932876707221288025 | 74142516123561425161706101342048731052342517238412204204105232029168920832413162028953246100200012921281222070701202883244542510727061291267222241523425174562822235642516194847222152357268341348530225052812932876707221288025 | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 224 | 224 | cipher_museum | 2.0 | public | null | null |
cda-0003014 | IOFHB TLJWR XNUQS CSVEX UNQOC RLFVW IWLYM ZEPZP MSYJL KCWQQ GNNCT XXJLV ZLOHA EYHEE DRQCA KRGEL GBWUG JMRCD YNZAJ YWUCA EAAHP IGUGT SIQWO DMCCA OSANM NMRYQ EXKWL YXHVB ZZEVH XEELA YONFR GENKX WHOWP NBLPI OCSVK MBZWI NGACG WFDUU MYYDU GWDDV SVBGA QRDR | IOFHB TLJWR XNUQS CSVEX UNQOC RLFVW IWLYM ZEPZP MSYJL KCWQQ GNNCT XXJLV ZLOHA EYHEE DRQCA KRGEL GBWUG JMRCD YNZAJ YWUCA EAAHP IGUGT SIQWO DMCCA OSANM NMRYQ EXKWL YXHVB ZZEVH XEELA YONFR GENKX WHOWP NBLPI OCSVK MBZWI NGACG WFDUU MYYDU GWDDV SVBGA QRDR | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | trithemius | trithemius | null | {} | hard | en | 209 | 209 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
typex-v2-0144 | DPIUELGHCCVCG | DPIUELGHCCVCG | AWAIT MY SIGNAL | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0040 | ┼ ╱ ┐• ┼ ┴• ⌐ | ┼ ╱ ┐• ┼ ┴• ⌐ | EUREKA | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 8 | 13 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0036 | 998 806 817 800 821 808 819 824 999 998 804 823 815 811 800 808 813 818 999 127 | 998 806 817 800 821 808 819 824 999 998 804 823 815 811 800 808 813 818 999 127 | GRAVITY EXPLAINS ALL | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 60 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0005412 | TEBA FSRY RHFN FORW UWGF RDHS AQRO FGVS ERCN OGWA TXNL GVNB ANGW ZNCO RWFG URBE SGWQ OYYL HAPE ROYO PYRV SHFS RPBE ESQG YLPE HGNS BEQS JBEX FBAY LJUN AGVN XRLF COQR VFFZ OYYG USOE QUVG SQGH ERFV BHYQ ZOYS ZVFH FSVO EQRE | TEBA FSRY RHFN FORW UWGF RDHS AQRO FGVS ERCN OGWA TXNL GVNB ANGW ZNCO RWFG URBE SGWQ OYYL HAPE ROYO PYRV SHFS RPBE ESQG YLPE HGNS BEQS JBEX FBAY LJUN AGVN XRLF COQR VFFZ OYYG USOE QUVG SQGH ERFV BHYQ ZOYS ZVFH FSVO EQRE | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
double-transposition-v2-0150 | HEWRVAETLSEHLASA | HEWRVAETLSEHLASA | THE WALLS HAVE EARS | double_transposition | double_transposition | transposition | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
enigma-v2-1078 | NFMXJHVWXKZLSONKZSYLQTWZZDVHQYGSKYKPQWOGNXPJNMZEXUZYWPOAABZGZXTPPYLMAFB | NFMXJHVWXKZLSONKZSYLQTWZZDVHQYGSKYKPQWOGNXPJNMZEXUZYWPOAABZGZXTPPYLMAFB | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0008194 | YJCC NAWF XAMB QNUY KANJ TVXW XJUY QJKN CRLB DKBC RCDC RXW | YJCC NAWF XAMB QNUY KANJ TVXW XJUY QJKN CRLB DKBC RCDC RXW | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | gronsfeld | gronsfeld | null | {
"key": "99999"
} | medium | en | 47 | 47 | synthetic_educational | null | null | [] | |
monoalphabetic-v2-1323 | GLP ELR QL ILVAR SBA WLPIR SBCS BA ECVA BDQ LKIY QLK SBCS WBLAVAP OAIDAVAQ QBCII KLS MAPDQB | GLP ELR QL ILVAR SBA WLPIR SBCS BA ECVA BDQ LKIY QLK SBCS WBLAVAP OAIDAVAQ QBCII KLS MAPDQB | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "COURAGE"
} | beginner | en | 74 | 91 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-111 | 262829742752224517132974562028221282329682072129281717245265767229731072296761282028760292823271072 | 262829742752224517132974562028221282329682072129281717245265767229731072296761282028760292823271072 | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "CIPHERMUS"
} | advanced | en | 99 | 99 | cipher_museum | 0.2 | public | null | null |
cda-0003842 | SBX EXAKBED CJERHR XHYPLIQ IXN JUN MTLK ARH TQEJGFHLI WYBUAD VQDQ UIOZEYLKYIQ LDFNT EEPGTQY PUAJC NDWTLZ TFKIJX NGWXFXM QV HHNXNZLLF PUA RIJEIAAY | SBX EXAKBED CJERHR XHYPLIQ IXN JUN MTLK ARH TQEJGFHLI WYBUAD VQDQ UIOZEYLKYIQ LDFNT EEPGTQY PUAJC NDWTLZ TFKIJX NGWXFXM QV HHNXNZLLF PUA RIJEIAAY | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS ATBASH ENCODES BY REVERSING THE ALPHABET | beaufort | beaufort | null | {
"key": "LIBERTY"
} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
copiale-v3-0311 | D4 U1 M1 M1 U1 F9 G0 H0 Y0 U1 S6 G2 U6 D3 K6 V8 R0 C1 I0 G3 I2 A5 U8 O7 I4 B9 U7 P6 P5 F9 M8 U2 O4 V4 P5 P9 Y2 P5 A2 D8 M4 U1 Z2 W4 B9 P3 U6 P6 J8 U9 U1 K6 D8 I0 R7 N6 A1 J3 E3 V0 W6 U8 V6 V4 F1 L0 I5 G2 D4 Q6 P3 J4 E1 D4 F7 V7 E6 G1 V6 Q6 J8 O2 U1 M8 E0 X4 Y8 U9 V3 O7 B9 V7 L3 M4 J3 O9 Z2 V0 D3 S9 F5 J4 R9 B8 A4 C7 F7... | D4 U1 M1 M1 U1 F9 G0 H0 Y0 U1 S6 G2 U6 D3 K6 V8 R0 C1 I0 G3 I2 A5 U8 O7 I4 B9 U7 P6 P5 F9 M8 U2 O4 V4 P5 P9 Y2 P5 A2 D8 M4 U1 Z2 W4 B9 P3 U6 P6 J8 U9 U1 K6 D8 I0 R7 N6 A1 J3 E3 V0 W6 U8 V6 V4 F1 L0 I5 G2 D4 Q6 P3 J4 E1 D4 F7 V7 E6 G1 V6 Q6 J8 O2 U1 M8 E0 X4 Y8 U9 V3 O7 B9 V7 L3 M4 J3 O9 Z2 V0 D3 S9 F5 J4 R9 B8 A4 C7 F7... | 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 | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 364 | 545 | cipher_museum | 2.0 | public | null | null |
scytale-299 | TTRRSNHAOTAOENFOSNACLSUNREIABOTTFFJAOOEEECFTATCCWHNYTOAEDOOURSDRFNITETITSAAONBOTTRQEFEHUUNVIAIIEITRNRGTIOHYLASAEWELADNHCIMECITMAIECEPTTIHDOTHTCXREEIAX | TTRRSNHAOTAOENFOSNACLSUNREIABOTTFFJAOOEEECFTATCCWHNYTOAEDOOURSDRFNITETITSAAONBOTTRQEFEHUUNVIAIIEITRNRGTIOHYLASAEWELADNHCIMECITMAIECEPTTIHDOTHTCXREEIAX | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | scytale | scytale | transposition | {
"type": "integer",
"value": 6
} | intermediate | en | 150 | 150 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0985 | FMPRCQJFUQLWUZKGGNONCRANURHVGIRJIXYGQYEJIZKYVDKBIDYNCGOLTJOMOAENSPKNTNLKKOLGMORA | FMPRCQJFUQLWUZKGGNONCRANURHVGIRJIXYGQYEJIZKYVDKBIDYNCGOLTJOMOAENSPKNTNLKKOLGMORA | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0017412 | GVIYIARGMKMPQRXGLZVMNEYUYCNXSZWKETVVWMEJRWXDQUJECDQVEMJFMXACGVACIFOTWCTTSSHJUSYAMKCTUHGIVVAIBNMLLYONFWPUYHVKVKULJFVGUPBWPGNZFDUYLVPCGICKHVWJCHEAVXSVLQHIBLFHFXVUKFTKFNWRBGQFWSYOMXW | GVIYIARGMKMPQRXGLZVMNEYUYCNXSZWKETVVWMEJRWXDQUJECDQVEMJFMXACGVACIFOTWCTTSSHJUSYAMKCTUHGIVVAIBNMLLYONFWPUYHVKVKULJFVGUPBWPGNZFDUYLVPCGICKHVWJCHEAVXSVLQHIBLFHFXVUKFTKFNWRBGQFWSYOMXW | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | running_key | running_key | null | {} | hard | en | 179 | 179 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
red-type-a-v2-0315 | GYGJYGRIGOSIQNNOTYVSMTFACVOCABIQENYTJIRILBPANRCOOHOLPEPUICIWNBYHVSYSZEKUFW | GYGJYGRIGOSIQNNOTYVSMTFACVOCABIQENYTJIRILBPANRCOOHOLPEPUICIWNBYHVSYSZEKUFW | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0262 | FDADAFDVAXDXAXAAAVDVDDDVADGADDDDFVDGFFXGVD | FDADAFDVAXDXAXAAAVDVDDDVADGADDDDFVDGFFXGVD | BRIDGE DESTROYED AT DAWN | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 42 | 42 | cipher_museum | 2.0 | public | null | null |
affine-v2-0528 | DVG SMPPY VMNG GMTY | DVG SMPPY VMNG GMTY | THE WALLS HAVE EARS | affine | affine | substitution | {
"a": 5,
"b": 12
} | beginner | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0015725 | - .... . / - .-. .. - .... . -- .. ..- ... / -.-. .. .--. .... . .-. / .- -.. ...- .- -. -.-. . ... / - .... . / .- .-.. .--. .... .- -... . - / -... -.-- / --- -. . / .--. --- ... .. - .. --- -. / . .- -.-. .... / .-.. . - - . .-. / - .... . / .- .-. -.-. .... .. - . -.-. - ..- .-. . / ... .... --- ..- .-.. -.. / -- .... | - .... . / - .-. .. - .... . -- .. ..- ... / -.-. .. .--. .... . .-. / .- -.. ...- .- -. -.-. . ... / - .... . / .- .-.. .--. .... .- -... . - / -... -.-- / --- -. . / .--. --- ... .. - .. --- -. / . .- -.-. .... / .-.. . - - . .-. / - .... . / .- .-. -.-. .... .. - . -.-. - ..- .-. . / ... .... --- ..- .-.. -.. / -- .... | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE ARCHITECTURE SHOULD MAKE MISUSE HARDER OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | morse_code | morse_code | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0007469 | RIREL FLFGRZ ARRQF NA UBARFG GUERNG ZBQRY OEHGR SBEPR JBEXF BAYL JURA GUR XRL FCNPR VF FZNYY CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA UBARFGYL | RIREL FLFGRZ ARRQF NA UBARFG GUERNG ZBQRY OEHGR SBEPR JBEXF BAYL JURA GUR XRL FCNPR VF FZNYY CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA UBARFGYL | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN HONESTLY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 125 | 125 | synthetic_educational | null | null | [] | |
null-cipher-041 | aeic each ioua than long some who of help will eioa than this | aeic each ioua than long some who of help will eioa than this | CHANGE OF PLANS | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 49 | 61 | cipher_museum | 0.2 | public | null | null |
hill-050 | AVMIEZFBOSXWSCALDHHDIYJWEZNNSYVEAVOUFMRGDHACFKBEPJVAFRMZ | AVMIEZFBOSXWSCALDHHDIYJWEZNNSYVEAVOUFMRGDHACFKBEPJVAFRMZ | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
bazeries-v2-0204 | TSTIBIQFIBOPBOJKIJBPPHHJJEYATPOTPBTUORIBTIRBEJPFYGGJOYEIYMJAWGJWGNMTTPIYUTNPI | TSTIBIQFIBOPBOJKIJBPPHHJJEYATPOTPBTUORIBTIRBEJPFYGGJOYEIYMJAWGJWGNMTTPIYUTNPI | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-296 | OSNALTVBHZYHMXYRMBCMLHJGSHYLPRFEVSLMVJFEEOGHYIGRJTYVAYEVGBYLAESYAGBCBWKVUSCGZYIRVCGXZXZPLFUGXYZYAHSIYSMVVSZHYXYRUCGFVRURXSHLLTIBECNXALVTWBYKHPNRDTUKL | OSNALTVBHZYHMXYRMBCMLHJGSHYLPRFEVSLMVJFEEOGHYIGRJTYVAYEVGBYLAESYAGBCBWKVUSCGZYIRVCGXZXZPLFUGXYZYAHSIYSMVVSZHYXYRUCGFVRURXSHLLTIBECNXALVTWBYKHPNRDTUKL | 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 | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SOUTHERN"
} | intermediate | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
vic-v3-0019 | 91080426080858390919092668080790 | 91080426080858390919092668080790 | THE ALCHEMIST SUCCEEDS | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
cda-0020541 | SHUSH / DZEH / WOL-LA-CHEE / NO-DA-IH / MA-E / A-KHA / GAH / THAN-ZIE / TKIN / DIBEH / THAN-ZIE / LIN / DZEH / GAH / DZEH / MOASI / TKIN / CLA-GI-AIH / GAH / A-KHA / MOASI / WOL-LA-CHEE / DIBEH-YAZZIE / A-KHA / MA-E / A-... | SHUSH / DZEH / WOL-LA-CHEE / NO-DA-IH / MA-E / A-KHA / GAH / THAN-ZIE / TKIN / DIBEH / THAN-ZIE / LIN / DZEH / GAH / DZEH / MOASI / TKIN / CLA-GI-AIH / GAH / A-KHA / MOASI / WOL-LA-CHEE / DIBEH-YAZZIE / A-KHA / MA-E / A-... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | navajo_code | navajo_code | null | {} | hard | en | 195 | 195 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
red-type-a-v3-0077 | DJOGUNFOTCEBFPIIMFELJYJSURJETNCATULQEMUJOCEAXCTEWQEASOHIFTYDPRCUEXQYJEQEADDAUYULSNIHICRU | DJOGUNFOTCEBFPIIMFELJYJSURJETNCATULQEMUJOCEAXCTEWQEASOHIFTYDPRCUEXQYJEQEADDAUYULSNIHICRU | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0247 | HWIEULHJVAEEHJMQHAAOT | HWIEULHJVAEEHJMQHAAOT | THE EXPERIMENT CONFIRMS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0016352 | r └ ⌐ X X Γ· r ⌐ └ r Γ· ┐· r· L ┌· X K L ⌐ r r· ⌒ r· ⌒· ┌ ┘· Γ L ┌· ─ X L r X· ┌· Γ· K ⌒· ┌ ⌐ K K L ┌· X K r· L ⌐ ┌· r r· Γ· K L r K X· ┌· L X r· ┘· X· └ Γ ┌ ⌐ ┐ L ┌ Γ· X X· X L r· ⌐ ┌· Γ L ┌· | r └ ⌐ X X Γ· r ⌐ └ r Γ· ┐· r· L ┌· X K L ⌐ r r· ⌒ r· ⌒· ┌ ┘· Γ L ┌· ─ X L r X· ┌· Γ· K ⌒· ┌ ⌐ K K L ┌· X K r· L ⌐ ┌· r r· Γ· K L r K X· ┌· L X r· ┘· X· └ Γ ┌ ⌐ ┐ L ┌ Γ· X X· X L r· ⌐ ┌· Γ L ┌· | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | pigpen | pigpen | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0008121 | MKAW QLII DZCP GZDJ BAQM IXZE KLKH LGCT JKXF YLAM BQRA BMWK BQQN ADEA REQE SZFF QALV MULQ MLVV SMJQ RCXS MNZQ MMIJ DNUL AZUT IXZB TYNU AFWX FPAW LWAF GTMS AQUT | MKAW QLII DZCP GZDJ BAQM IXZE KLKH LGCT JKXF YLAM BQRA BMWK BQQN ADEA REQE SZFF QALV MULQ MLVV SMJQ RCXS MNZQ MMIJ DNUL AZUT IXZB TYNU AFWX FPAW LWAF GTMS AQUT | THE INDEX OF COINCIDENCE IS A USEFUL CLUE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL SLOWLY | beaufort | beaufort | null | {
"key": "FREEDOM"
} | hard | en | 128 | 128 | synthetic_educational | null | null | [] | |
cda-0011432 | TIGOM GXHZH ZCQFS GLVKD HJSIC CGFHR VYNLK XWXGA WIOKZ XGZOP YFEXC VLNJK MWLFF ACIIV UNLZB OCPUF PFCFT HTHCT EPOCH VNXUG SBYJC JRKIW Y | TIGOM GXHZH ZCQFS GLVKD HJSIC CGFHR VYNLK XWXGA WIOKZ XGZOP YFEXC VLNJK MWLFF ACIIV UNLZB OCPUF PFCFT HTHCT EPOCH VNXUG SBYJC JRKIW Y | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE MESSAGE WAS HIDDEN BUT NOT SECURE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | trithemius | trithemius | null | {} | hard | en | 111 | 111 | synthetic_educational | null | null | [] | |
enigma-v3-1007 | JQVNRJGWKIISVBYKBZTXFUPNYWQHTRINPPLZSBDHDMEFYNSAPLEJEYISBDVHTXWKCQGAAVHJUUW | JQVNRJGWKIISVBYKBZTXFUPNYWQHTRINPPLZSBDHDMEFYNSAPLEJEYISBDVHTXWKCQGAAVHJUUW | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
kryptos-160 | TNFWVWWNVUQGQZDUMJLJXQLGHRJSKFQHXZZQELAGYCAQBJLB | TNFWVWWNVUQGQZDUMJLJXQLGHRJSKFQHXZZQELAGYCAQBJLB | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "ABSCISSA"
} | advanced | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
noisy-vigenere-ocr_heavy-016 | UPTGMDOMGTEEPBTSIXTIBJLRPOTKXYGKDBVJGWUALVHOGZXNQZAKART | UPTGMDOMGTEEPBTSIXTIBJLRPOTKXYGKDBVJGWUALVHOGZXNQZAKART | THE ZIMMERMANN TELEGRAM CHANGED THE COURSE OF THE FIRST WORLD WAR | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-0353 | EENMDGILTGOYCEKTWPFSBGOISWXEEAFNGXDWUEMLKYTCANEDVNWMCYUZXUCHFREBNLAULTXQFNAEE | EENMDGILTGOYCEKTWPFSBGOISWXEEAFNGXDWUEMLKYTCANEDVNWMCYUZXUCHFREBNLAULTXQFNAEE | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0011947 | ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a37⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w32⟩ ⟨w04⟩ ⟨a13⟩ ⟨a01⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ | ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨w26⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a29⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a37⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w32⟩ ⟨w04⟩ ⟨a13⟩ ⟨a01⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | babington | babington | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0009683 | UQQKDETW QTUEAC AXGSBR RA BIUBOB AZJQB MSVSBKRW TFQ GACUMOO IUU FMPBQZ LAZ RGT UQQKDI TGPEW | UQQKDETW QTUEAC AXGSBR RA BIUBOB AZJQB MSVSBKRW TFQ GACUMOO IUU FMPBQZ LAZ RGT UQQKDI TGPEW | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE MESSAGE WAS HIDDEN BUT NOT SECURE TODAY | beaufort | beaufort | null | {
"key": "MUSEUM"
} | medium | en | 77 | 77 | synthetic_educational | null | null | [] | |
vigenere-v3-0525 | LVOAGXYXALHPTVMZ | LVOAGXYXALHPTVMZ | SOUND THE TRUMPETS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "THUNDER"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0767 | JHILDDOLGALNZQOBHHJGA | JHILDDOLGALNZQOBHHJGA | THE EXPERIMENT CONFIRMS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "COMPASS"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
m209-v2-0150 | KWAJCRRMWAIYZBOJ | KWAJCRRMWAIYZBOJ | THE WALLS HAVE EARS | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0020944 | FVMS UYSM PTBG MOPE IKNF KONZ LGIK VHHU XYJP GHHH ZSSI YPKQ VTDB NKHV XVWP AYBN XXHU PLCV KMVN RGIA LKHA | FVMS UYSM PTBG MOPE IKNF KONZ LGIK VHHU XYJP GHHH ZSSI YPKQ VTDB NKHV XVWP AYBN XXHU PLCV KMVN RGIA LKHA | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | one_time_pad | one_time_pad | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
hill-v3-0223 | YHECQACSTYOMPM | YHECQACSTYOMPM | THE SIEGE BEGINS | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0270 | PSVIQNDGFEGIHY | PSVIQNDGFEGIHY | AWAIT MY SIGNAL | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0018433 | 87 27 23 11 1 3 50 88 66 61 60 23 64 91 94 23 82 96 63 88 82 67 23 60 67 92 91 88 34 23 33 63 76 50 59 25 59 45 15 11 1 4 26 52 22 39 87 1 81 87 96 2 43 11 59 46 92 63 27 91 60 22 34 81 43 67 14 25 66 68 21 2 81 1 39 50 76 67 48 78 3 76 15 24 61 34 48 36 14 48 81 35 92 27 81 27 39 92 50 49 11 87 2 81 58 48 79 33 2 30 7... | 87 27 23 11 1 3 50 88 66 61 60 23 64 91 94 23 82 96 63 88 82 67 23 60 67 92 91 88 34 23 33 63 76 50 59 25 59 45 15 11 1 4 26 52 22 39 87 1 81 87 96 2 43 11 59 46 92 63 27 91 60 22 34 81 43 67 14 25 66 68 21 2 81 1 39 50 76 67 48 78 3 76 15 24 61 34 48 36 14 48 81 35 92 27 81 27 39 92 50 49 11 87 2 81 58 48 79 33 2 30 7... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | homophonic | homophonic | null | {} | hard | en | 121 | 121 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
wheatstone-v3-0115 | LVAJLRFLCRLTFLPIAKL | LVAJLRFLCRLTFLPIAKL | AVE MARIA GRATIA PLENA | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0025 | 46720421724731682376 | 46720421724731682376 | TRUST BUT VERIFY | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0016605 | CHORO KEDYC HOLDA IINRC HEOLC HOLOK ALOKE DYOKE EDYOK EEDYO TAIIN SHORS HEEDY DAIIN CHEDY OTAIN OTEDY RAIIN OTAII NSHAL SHARA LSHEO LYTAI INOXE DRCHE OLCHE DALOT AINYK CHEOL SHEED YYTAI INDAI INDAL YTEDY OTAIN LKAII NOXED OKEDY QOTED YDAIN YOTAI INCHO LAIII NYTAI INSHA RALOK ALOKS HYOTO LOTOL ORORO KEDYO TOLOR ORSHA RA... | CHORO KEDYC HOLDA IINRC HEOLC HOLOK ALOKE DYOKE EDYOK EEDYO TAIIN SHORS HEEDY DAIIN CHEDY OTAIN OTEDY RAIIN OTAII NSHAL SHARA LSHEO LYTAI INOXE DRCHE OLCHE DALOT AINYK CHEOL SHEED YYTAI INDAI INDAL YTEDY OTAIN LKAII NOXED OKEDY QOTED YDAIN YOTAI INCHO LAIII NYTAI INSHA RALOK ALOKS HYOTO LOTOL ORORO KEDYO TOLOR ORSHA RA... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ATBASH ENCODES BY REVERSING THE ALPHABET THE VIGENERE CIPHER USES A REPEATING KEYWORD | voynich_render | voynich_render | null | {} | hard | en | 274 | 274 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
vic-v3-0296 | 692256183681169083687852866 | 692256183681169083687852866 | AVE MARIA GRATIA PLENA | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0065 | gcd aoggfd is hdgguxazqh foxgde gcqdd eoux ore yixg ivdq sksgu gcizxore yoxzofgkdx gigof | gcd aoggfd is hdgguxazqh foxgde gcqdd eoux ore yixg ivdq sksgu gcizxore yoxzofgkdx gigof | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 75 | 88 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0632 | QAI PIKJQI TISOIIP | QAI PIKJQI TISOIIP | THE SENATE DECREES | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
null-cipher-v2-0036 | like it back each right this your our right down each at take has | like it back each right this your our right down each at take has | LIBERTY OR DEATH | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 52 | 65 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0382 | KLGJELZWTJWSUZ | KLGJELZWTJWSUZ | STORM THE BREACH | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0018754 | ITSAPTZXPBXGDUBJGGNLIBOYIUCJGFAHLANCBYILPIWWMAKFKPXSVCKYOIAWFEYAXQVIPRTQDZBUTURRDPZTCRNHSZIYZOOIIHLSSUIKVFIHLUKDZJAURSSBANJREIYJAKNDYIMHEDCPWGRLFEMEYQDTJYXVPKCEQSVEXAZBETSOUC | ITSAPTZXPBXGDUBJGGNLIBOYIUCJGFAHLANCBYILPIWWMAKFKPXSVCKYOIAWFEYAXQVIPRTQDZBUTURRDPZTCRNHSZIYZOOIIHLSSUIKVFIHLUKDZJAURSSBANJREIYJAKNDYIMHEDCPWGRLFEMEYQDTJYXVPKCEQSVEXAZBETSOUC | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | vernam | vernam | null | {} | hard | en | 174 | 174 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0012981 | 72 67 43 48 58 79 82 67 39 22 48 79 49 64 33 99 35 22 21 26 40 22 11 67 22 61 72 34 22 21 26 99 61 93 62 23 81 21 48 1 60 34 27 99 43 63 82 58 22 99 91 68 26 72 30 11 94 76 32 96 64 11 17 72 78 66 91 11 3 23 2 50 76 99 93 70 24 25 88 22 67 33 43 25 30 23 50 50 76 99 50 11 94 45 86 86 17 48 58 22 60 17 48 4 33 60 94 45 ... | 72 67 43 48 58 79 82 67 39 22 48 79 49 64 33 99 35 22 21 26 40 22 11 67 22 61 72 34 22 21 26 99 61 93 62 23 81 21 48 1 60 34 27 99 43 63 82 58 22 99 91 68 26 72 30 11 94 76 32 96 64 11 17 72 78 66 91 11 3 23 2 50 76 99 93 70 24 25 88 22 67 33 43 25 30 23 50 50 76 99 50 11 94 45 86 86 17 48 58 22 60 17 48 4 33 60 94 45 ... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | homophonic | homophonic | null | {} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
affine-v3-1368 | HAXYNAV QP QYN BHEEV | HAXYNAV QP QYN BHEEV | ARCHERS TO THE WALLS | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 17 | 20 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0448 | WAUZN ZNK XGBKT TKBKXSUXK ZNK HOXJ YGZ UT ZNK HAYZ UL VGRRGY PAYZ GHUBK SE INGSHKX JUUX | WAUZN ZNK XGBKT TKBKXSUXK ZNK HOXJ YGZ UT ZNK HAYZ UL VGRRGY PAYZ GHUBK SE INGSHKX JUUX | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0013143 | OCXLP ZTHHR VDIGF BCYTJ HZAPE JHHKE YNICP LPYWP QKHJA WMAIF FLBTX GXPKM JNZIG CMGMC RLWEY OSRXO ONDCC XYVDS FMGFW PGMEC GGSGL WRPPI IKCUG AAPRV SLSPS YMKII ZINNG FPUFE GJSXH XELXX RZYTI XLEPX UILMW HJZBB VSKON XIBKE TDSYA RJEAB MSVSU QNALX KGRJL NFWNG | OCXLP ZTHHR VDIGF BCYTJ HZAPE JHHKE YNICP LPYWP QKHJA WMAIF FLBTX GXPKM JNZIG CMGMC RLWEY OSRXO ONDCC XYVDS FMGFW PGMEC GGSGL WRPPI IKCUG AAPRV SLSPS YMKII ZINNG FPUFE GJSXH XELXX RZYTI XLEPX UILMW HJZBB VSKON XIBKE TDSYA RJEAB MSVSU QNALX KGRJL NFWNG | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER CAREFULLY | running_key | running_key | null | {} | hard | en | 210 | 210 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0018776 | POIN TUNI TEBA SISL OCAL ISSU ECOU LDIN TELN AVAL FIEL DROA DSAM ONGS EEKS TRAC KRAN GEUN DERC AUSE TRAC KUNT ILRA IDSE NEMY DAIL YEXA CTSH OREE IGHT RANG E | POIN TUNI TEBA SISL OCAL ISSU ECOU LDIN TELN AVAL FIEL DROA DSAM ONGS EEKS TRAC KRAN GEUN DERC AUSE TRAC KUNT ILRA IDSE NEMY DAIL YEXA CTSH OREE IGHT RANG E | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
scytale-306 | PCDPNDXREALNXXOESAEXX | PCDPNDXREALNXXOESAEXX | PROCEED AS PLANNED | scytale | scytale | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0002896 | PAXWBONUM DBNB J MRPRC BNZDNWLN JB CQN ANYNJCRWP TNH J CAJWBYJANWC CXXU BQXDUM BQXF RCB ANJBXWRWP | PAXWBONUM DBNB J MRPRC BNZDNWLN JB CQN ANYNJCRWP TNH J CAJWBYJANWC CXXU BQXDUM BQXF RCB ANJBXWRWP | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | gronsfeld | gronsfeld | null | {
"key": "99999"
} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
sigaba-v3-0334 | ZEWETQERMZSIKAXOLL | ZEWETQERMZSIKAXOLL | DEAD MEN TELL NO TALES | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0100 | FOTIGOIBTEUBEEJIBCYIGADMYUVIRKAXBOLIREZYHHIJXYIBEPIHDOBIIBKYUKEUSAZJA | FOTIGOIBTEUBEEJIBCYIGADMYUVIRKAXBOLIREZYHHIJXYIBEPIHDOBIIBKYUKEUSAZJA | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0017343 | HMOYGRPELSBCSROLTXUQZDUCWSUGPOPYTVYHHZMFYSZIHLOYDAVCJEQCFNMDBXGQKAASMEHPAWJAKTXDAYDNBGKJGXWWWFMYSRMRFIQSIFYGRLRHAGJLLJZCBLPEKIRKGVUHRLTRTGBMXY | HMOYGRPELSBCSROLTXUQZDUCWSUGPOPYTVYHHZMFYSZIHLOYDAVCJEQCFNMDBXGQKAASMEHPAWJAKTXDAYDNBGKJGXWWWFMYSRMRFIQSIFYGRLRHAGJLLJZCBLPEKIRKGVUHRLTRTGBMXY | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | running_key | running_key | null | {} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0019577 | WVTIIKHPTPCBUGFHBXOHUIVXAHRDLRIYEVCDYGBNJLSUYTCKCUJSBQEKAVYMLGMWGAILHLPRQSAPVMTXBJQFKOJAJSCCEEULZAFUYVQSLMLBSQUFFCKSNVCLIEMVYUYUJRQRLRBMFKACYYFSCIXEXWVUTHWEWXVL | WVTIIKHPTPCBUGFHBXOHUIVXAHRDLRIYEVCDYGBNJLSUYTCKCUJSBQEKAVYMLGMWGAILHLPRQSAPVMTXBJQFKOJAJSCCEEULZAFUYVQSLMLBSQUFFCKSNVCLIEMVYUYUJRQRLRBMFKACYYFSCIXEXWVUTHWEWXVL | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES NEVER | running_key | running_key | null | {} | hard | en | 160 | 160 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
vigenere-v2-0826 | FBCXUBETYOZRVKTCSVZWOTAVIOQOSZOXBVQWLPYFBLUWOPYIPYBGXNJLKLACPPXBISVQWLG | FBCXUBETYOZRVKTCSVZWOTAVIOQOSZOXBVQWLPYFBLUWOPYIPYBGXNJLKLACPPXBISVQWLG | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
vic-v2-0061 | 4908430491951926486718118995192896192869189958619130491951928961928691899564867181189951929117495486742349590 | 4908430491951926486718118995192896192869189958619130491951928961928691899564867181189951929117495486742349590 | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 109 | 109 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0264 | PQPAMRVXKGRUMTMVPBL | PQPAMRVXKGRUMTMVPBL | MISSION ACCOMPLISHED | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
kl7-076 | DRKXTBLYDTMXWARRCE | DRKXTBLYDTMXWARRCE | SEND REINFORCEMENTS | kl7 | kl7 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
affine-052 | DS KAR IRXDSSDSX TFH KAR TVEO FSO KAR TVEO TFH TDKA XVO FSO UNMM VU XEFLR | DS KAR IRXDSSDSX TFH KAR TVEO FSO KAR TVEO TFH TDKA XVO FSO UNMM VU XEFLR | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | affine | affine | substitution | {
"a": 3,
"b": 5
} | beginner | en | 58 | 73 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v3-0355 | TNXXRKN ANPNYDNV PFNRAFI | TNXXRKN ANPNYDNV PFNRAFI | MESSAGE RECEIVED CLEARLY | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 22 | 24 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v3-0097 | QRIDTPCIUGALLFVSNXL | QRIDTPCIUGALLFVSNXL | AVE MARIA GRATIA PLENA | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0008316 | BUBDI CICKBH ZBBGC QZ VNZBCK KVDBQK HNGBR TDILKNEDQLVI DBPQDGC LQKABZTB QZG TQDBMWR KVAZOAZE | BUBDI CICKBH ZBBGC QZ VNZBCK KVDBQK HNGBR TDILKNEDQLVI DBPQDGC LQKABZTB QZG TQDBMWR KVAZOAZE | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | monoalphabetic | monoalphabetic | null | {
"alphabet": "QJTGBMEVAYORHZNLSDCKWUPXIF"
} | hard | en | 80 | 80 | synthetic_educational | null | null | [] | |
cda-0017938 | JBGA QKUS JRYM LBOO SNUD WFTE UEWU TVNJ FPMO IAFA FMCB RLZF NOPZ AWCC JYJL FBAH PMID XWNS WEVE JBBL AHXM NWWN | JBGA QKUS JRYM LBOO SNUD WFTE UEWU TVNJ FPMO IAFA FMCB RLZF NOPZ AWCC JYJL FBAH PMID XWNS WEVE JBBL AHXM NWWN | ATBASH ENCODES BY REVERSING THE ALPHABET THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | one_time_pad | one_time_pad | null | {} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
enigma-v3-0989 | GNYZFJLCPWRZMRSHXTOJIFSYPXGVGNZYEFERXJDDKGFOXLIEPLCUSSHRFONGECLIKCWXMJENL | GNYZFJLCPWRZMRSHXTOJIFSYPXGVGNZYEFERXJDDKGFOXLIEPLCUSSHRFONGECLIKCWXMJENL | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
stager-route-334 | IBMTOFHEETWSSETIWITASOTOMERWFTHTASSXTSIE | IBMTOFHEETWSSETIWITASOTOMERWFTHTASSXTSIE | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | stager_route | stager_route | transposition | {
"type": "integer",
"value": 8
} | expert | en | 40 | 40 | cipher_museum | 0.2 | public | null | null |
adfgvx-009 | ADFGAADFAGGVAFGAFDFGGVGFXAVGAAXADFFGFAAAFD | ADFGAADFAGGVAFGAFDFGGVGFXAVGAAXADFFGFAAAFD | SUPPLY LINE COMPROMISED | adfgvx | adfgvx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v2-0217 | 8603 7654 7467 8528 7467 7338 8437 7467 8603 7911 7720 7467 8528 7256 8685 8437 7720 7467 7401 7256 7467 8038 7467 7194 8603 7654 8603 7654 7467 8603 7654 7720 8437 7401 7529 7911 7194 7590 8528 8603 8100 8038 7467 8100 7529 8603 7654 7467 8100 7911 7401 7338 7654 8685 8437 7338 7654 7338 8100 8685 8437 8603 9003 7194 ... | 8603 7654 7467 8528 7467 7338 8437 7467 8603 7911 7720 7467 8528 7256 8685 8437 7720 7467 7401 7256 7467 8038 7467 7194 8603 7654 8603 7654 7467 8603 7654 7720 8437 7401 7529 7911 7194 7590 8528 8603 8100 8038 7467 8100 7529 8603 7654 7467 8100 7911 7401 7338 7654 8685 8437 7338 7654 7338 8100 8685 8437 8603 9003 7194 ... | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 320 | 399 | cipher_museum | 2.0 | public | null | null |
typex-074 | RKXHGJKDVSRUIFPE | RKXHGJKDVSRUIFPE | ALL IS LOST RETREAT | typex | typex | machine | {
"type": "keyword",
"value": "BLETCHLEY"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0394 | ELIXLYGYNDKBNPLTNGVBYCSTCLYRNVNORQNDKBNVAUDBTMINZLROKBQZ | ELIXLYGYNDKBNPLTNGVBYCSTCLYRNVNORQNDKBNVAUDBTMINZLROKBQZ | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 56 | 56 | cipher_museum | 2.0 | public | null | null |
cda-0021934 | XLOF NMZI GIZM HKLH RGRL MIVZ WHXL OFNM HRMP VBLI WVIG SVIZ ROUV MXVX RKSV IDIR GVHG VCGR MZAR TAZT KZGG VIMT ILMH UVOW FHVH ZWRT RGHV JFVM XVZH GSVI VKVZ GRMT PVBX IBKG LTIZ KSBI VDZI WHKZ GRVM XVZM WXZI VUFO GSRM PRMT | XLOF NMZI GIZM HKLH RGRL MIVZ WHXL OFNM HRMP VBLI WVIG SVIZ ROUV MXVX RKSV IDIR GVHG VCGR MZAR TAZT KZGG VIMT ILMH UVOW FHVH ZWRT RGHV JFVM XVZH GSVI VKVZ GRMT PVBX IBKG LTIZ KSBI VDZI WHKZ GRVM XVZM WXZI VUFO GSRM PRMT | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | atbash | atbash | null | {} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
geheimschreiber-115 | FPRLWPOTNTUVFPDAELGFTDNHGVQUENVYPDVDLMRWSAAMOLFIODDTLLGVNBDH | FPRLWPOTNTUVFPDAELGFTDNHGVQUENVYPDVDLMRWSAAMOLFIODDTLLGVNBDH | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0007 | SIGNALFIRESLIT | SIGNALFIRESLIT | SIGNAL FIRES LIT | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0367 | DDFAFFGADADXGGGAAAGXAFDGAXFADGAFGGGFDGAFAFGDAGGDXDAAFAXFXAXDFFFFDDAADAFFFGAFDDDDDFFGDXDGFDFGDGADAAAXAXAAFGGGFGDXDFGGFFDFADFFFDADGGGFFGDGDFAAFDAGXFGDXGDDDFDGGDFF | DDFAFFGADADXGGGAAAGXAFDGAXFADGAFGGGFDGAFAFGDAGGDXDAAFAXFXAXDFFFFDDAADAFFFGAFDDDDDFFGDXDGFDFGDGADAAAXAXAAFGGGFGDXDFGGFFDFADFFFDADGGGFFGDGDFAAFDAGXFGDXGDDDFDGGDFF | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
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