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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
vic-v3-0096 | 908348588625483689898685340 | 908348588625483689898685340 | THE ORACLE HAS SPOKEN | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0004 | 90 55 61 56 91 90 60 54 22 33 42 34 24 91 90 43 10 81 85 82 91 90 63 56 87 21 86 91 | 90 55 61 56 91 90 60 54 22 33 42 34 24 91 90 43 10 81 85 82 91 90 63 56 87 21 86 91 | THE LEGIONS STAND READY | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 56 | 83 | cipher_museum | 2.0 | public | null | null |
running-key-007 | WFHYXBMGHTSBSHD | WFHYXBMGHTSBSHD | ABORT MISSION NOW | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Declaration of Independence (opening)"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
voynich-render-v2-0084 | prijfdehd jkgcizg jkxeil kx o eorhdqizx gckrh ore jkxeil jkgcizg yizqohd kx zfgklogdfu jiqgcfdxx | prijfdehd jkgcizg jkxeil kx o eorhdqizx gckrh ore jkxeil jkgcizg yizqohd kx zfgklogdfu jiqgcfdxx | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 83 | 96 | cipher_museum | 2.0 | public | null | null |
stager-route-206 | FDNOMORAWXRWACXXHR | FDNOMORAWXRWACXXHR | FORWARD MARCH NOW | stager_route | stager_route | transposition | {
"type": "integer",
"value": 6
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v2-0336 | 4809 4998 5060 5814 4871 4427 4361 4550 4427 5814 4680 5563 4614 5060 5645 5563 5814 4680 5488 4361 5060 4934 4680 5488 4154 4361 4154 4998 4550 4427 5397 5060 5645 5488 5563 4614 4680 4998 4550 4154 4998 4361 5814 4680 5488 4361 5060 4934 5814 4680 5563 4614 5060 5645 5563 4298 5060 5645 5397 4154 4550 4427 4680 5488 ... | 4809 4998 5060 5814 4871 4427 4361 4550 4427 5814 4680 5563 4614 5060 5645 5563 5814 4680 5488 4361 5060 4934 4680 5488 4154 4361 4154 4998 4550 4427 5397 5060 5645 5488 5563 4614 4680 4998 4550 4154 4998 4361 5814 4680 5488 4361 5060 4934 5814 4680 5563 4614 5060 5645 5563 4298 5060 5645 5397 4154 4550 4427 4680 5488 ... | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 332 | 414 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0672 | TOEROEDUOTUGXHUOUVVINOHGEXERFEEEDSTRHSXCSTLNRRMHOAXX | TOEROEDUOTUGXHUOUVVINOHGEXERFEEEDSTRHSXCSTLNRRMHOAXX | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 52 | 52 | cipher_museum | 2.0 | public | null | null |
cda-0019473 | VNMHJIGIERPNYINEEFJNPMAHVIVACKUWZXMNHHWWYIJVAZUXPURFEWSUHSGKNPLXUPDBPUWUQNYAEJHIYFNXUYOBXWL | VNMHJIGIERPNYINEEFJNPMAHVIVACKUWZXMNHHWWYIJVAZUXPURFEWSUHSGKNPLXUPDBPUWUQNYAEJHIYFNXUYOBXWL | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | running_key | running_key | null | {} | hard | en | 91 | 91 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
two-square-v2-0292 | LAVERIQUHEDSELENFHMLPPHRSALIBCWAOCSKUCHOVAFEXTSKPPYTOSSBEWCQPXFUNSOI | LAVERIQUHEDSELENFHMLPPHRSALIBCWAOCSKUCHOVAFEXTSKPPYTOSSBEWCQPXFUNSOI | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0008933 | CGRSNCLIQAIEEHRREPCATNUNSVAEYAWAERHGEACEKRPPATAEIFNLAACSTHRINFNRCYNLIXOYDEDUKEYSRWPX | CGRSNCLIQAIEEHRREPCATNUNSVAEYAWAERHGEACEKRPPATAEIFNLAACSTHRINFNRCYNLIXOYDEDUKEYSRWPX | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | scytale | scytale | null | {
"cols": 6
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
geez-monastic-v3-0015 | LAJUYJDJCJDYBU | LAJUYJDJCJDYBU | THE SIEGE BEGINS | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0013365 | .--. ..- -... .-.. .. -.-. / .. -. ..-. .-. .- ... - .-. ..- -.-. - ..- .-. . / -.. . ... . .-. ...- . ... / -.-. .- .-. . ..-. ..- .-.. / -.. . ... .. --. -. / .--. . . .-. / .-. . ...- .. . .-- / .- -. -.. / .-. . .--. .-. --- -.. ..- -.-. .. -... .. .-.. .. - -.-- / -- .- - - . .-. / .. -. / .-. . ... . .- .-. -.-. ... | .--. ..- -... .-.. .. -.-. / .. -. ..-. .-. .- ... - .-. ..- -.-. - ..- .-. . / -.. . ... . .-. ...- . ... / -.-. .- .-. . ..-. ..- .-.. / -.. . ... .. --. -. / .--. . . .-. / .-. . ...- .. . .-- / .- -. -.. / .-. . .--. .-. --- -.. ..- -.-. .. -... .. .-.. .. - -.-- / -- .- - - . .-. / .. -. / .-. . ... . .- .-. -.-. ... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | morse_code | morse_code | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
scytale-vg-0031 | FEOOADRTWWEOEDRAIKRNSECPGHROREDIPISASTRHJEAEDNSIDUNISAWTDOOVRDAKONCGCROE | FEOOADRTWWEOEDRAIKRNSECPGHROREDIPISASTRHJEAEDNSIDUNISAWTDOOVRDAKONCGCROE | FOR WE ARE GOD IS HANDIWORK CREATED IN CHRIST JESUS TO DO GOOD WORKS PREPARED IN ADVANCE | scytale | scytale | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0195 | 77238328437402322252370833245900374342370986766370837323284374023222523741626372682373239014256262328437402322252316523024 | 77238328437402322252370833245900374342370986766370837323284374023222523741626372682373239014256262328437402322252316523024 | ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 122 | 122 | cipher_museum | 2.0 | public | null | null |
cda-0014572 | PDYM RYOB VOBZ ESBH QFQY RQTZ OLVM NFQE URIX FJBW DWDQ LJNS NYIX DTLA ZPSL ZXBH MFKQ SWRH CWWM AVMH KM | PDYM RYOB VOBZ ESBH QFQY RQTZ OLVM NFQE URIX FJBW DWDQ LJNS NYIX DTLA ZPSL ZXBH MFKQ SWRH CWWM AVMH KM | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE MESSAGE WAS HIDDEN BUT NOT SECURE TODAY | one_time_pad | one_time_pad | null | {} | hard | en | 82 | 82 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0012075 | 20 80 59 66 82 76 69 80 52 82 89 69 80 55 61 69 29 57 43 89 36 82 29 66 36 82 55 82 43 61 65 68 52 82 50 61 61 77 68 57 57 | 20 80 59 66 82 76 69 80 52 82 89 69 80 55 61 69 29 57 43 89 36 82 29 66 36 82 55 82 43 61 65 68 52 82 50 61 61 77 68 57 57 | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | wallis_cipher | wallis_cipher | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
autokey-008 | XIPHCZQPHTRC | XIPHCZQPHTRC | HOLD POSITION | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "QUEENLY"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-018 | 0074 1503 1255 0856 0012 0347 1421 0285 1255 1255 0285 0012 0219 0538 0856 0408 | 0074 1503 1255 0856 0012 0347 1421 0285 1255 1255 0285 0012 0219 0538 0856 0408 | BURN AFTER READING | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 64 | 79 | cipher_museum | 0.2 | public | null | null |
vigenere-es-045 | RFBGTBEFPITFVFBPLZCJDAHFGJNTKCPFNDWFCEBTMSPVPATDTZKPOSTR | RFBGTBEFPITFVFBPLZCJDAHFGJNTKCPFNDWFCEBTMSPVPATDTZKPOSTR | PODRAN CORTAR TODAS LAS FLORES PERO NO PODRAN DETENER LA PRIMAVERA | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | es | 56 | 56 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v2-0171 | IJEAZROLTZHHIOIJESTOMSATHYRTIFXTZSBEIQXAIYOHHOMZASEVJIIJTBZW | IJEAZROLTZHHIOIJESTOMSATHYRTIFXTZSBEIQXAIYOHHOMZASEVJIIJTBZW | 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": "AXUM"
} | advanced | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0420 | AMZEYVUXCNFILRRZTPML | AMZEYVUXCNFILRRZTPML | THE LEGIONS STAND READY | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0021289 | 06304 02599 1587 04801 4478 01663 6280 02883 4155 1657 5026 0363 01348 2909 5998 06372 2541 1626 4754 5730 01636 6288 2836 01021 00410 3771 03851 7876 06643 4407 00703 5684 01588 0365 3525 00322 00662 3857 01596 02841 1979 6615 5995 1655 1342 00956 04736 05700 05730 1594 01017 6346 3859 7892 00330 4150 04750 1320 1582 ... | 06304 02599 1587 04801 4478 01663 6280 02883 4155 1657 5026 0363 01348 2909 5998 06372 2541 1626 4754 5730 01636 6288 2836 01021 00410 3771 03851 7876 06643 4407 00703 5684 01588 0365 3525 00322 00662 3857 01596 02841 1979 6615 5995 1655 1342 00956 04736 05700 05730 1594 01017 6346 3859 7892 00330 4150 04750 1320 1582 ... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | zimmermann | zimmermann | null | {} | hard | en | 196 | 196 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
typex-v2-0199 | ONKKTYUBOHPDKCRDGNSBDPWSCIPWRCPVHMBSBMFZRZKDJXPVIFYALXGAFDUXQFBTSTQGZLCMQ | ONKKTYUBOHPDKCRDGNSBDPWSCIPWRCPVHMBSBMFZRZKDJXPVIFYALXGAFDUXQFBTSTQGZLCMQ | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0640 | PMOQTAUVIURLTGFUPHBRTSBTRLORKPURFBTQXICOEERHPEOAKNHPHXITKDIKGPASPHAAPHAVKDH | PMOQTAUVIURLTGFUPHBRTSBTRLORKPURFBTQXICOEERHPEOAKNHPHXITKDIKGPASPHAAPHAVKDH | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
vernam-v2-0119 | SKHVWKYAGPGWITRSXGD | SKHVWKYAGPGWITRSXGD | CODED MESSAGE FOLLOWS | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0288 | HXJRKXDEFHMVZUSZMLZEPDKDDUSHZMPFFEWRDEXTQDJZPZLYODYYVBOCQHGZOMUIWTFWIPXDXCBER | HXJRKXDEFHMVZUSZMLZEPDKDDUSHZMPFFEWRDEXTQDJZPZLYODYYVBOCQHGZOMUIWTFWIPXDXCBER | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0577 | OWKXXJHZZTIPNTFSFTYBJOXSIEZDMTYXIODGISPYOMYUMZKCVDTNFKVKJQWOYIGOQQXSOYN | OWKXXJHZZTIPNTFSFTYBJOXSIEZDMTYXIODGISPYOMYUMZKCVDTNFKVKJQWOYIGOQQXSOYN | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
pigpen-v2-0086 | ╳ ┬ ┼ ┴• ⌐ ╲ ┐ ╲ ┴• ┐ ╳ ┼ ╲ ╳ ┤ ┐ ┼• ├ ╲ ┐• ┼ ┌• ┼ ⌐ ╳ ┼ ├ ╲ ┼ ┬• ╱ ┼ ┼• ¬ ┼ ╲ ╳ ┤• ├ ┼ ╳ ┼ ┐• ├• ┐ ┼• ┼ ╳ ┬ ┼ ┴• ┼ ▽ ¬• ┼ ┼• ┌ ╳ ┬ ┤• ┤ ⌐ ╲• ┐ ┌ ┼ ┼• ┼ ┐• ┼ ¬ ┐ ┌• ┬ ┼ ┐• ┴• ┼ ▽ | ╳ ┬ ┼ ┴• ⌐ ╲ ┐ ╲ ┴• ┐ ╳ ┼ ╲ ╳ ┤ ┐ ┼• ├ ╲ ┐• ┼ ┌• ┼ ⌐ ╳ ┼ ├ ╲ ┼ ┬• ╱ ┼ ┼• ¬ ┼ ╲ ╳ ┤• ├ ┼ ╳ ┼ ┐• ├• ┐ ┼• ┼ ╳ ┬ ┼ ┴• ┼ ▽ ¬• ┼ ┼• ┌ ╳ ┬ ┤• ┤ ⌐ ╲• ┐ ┌ ┼ ┼• ┼ ┐• ┼ ¬ ┐ ┌• ┬ ┼ ┐• ┴• ┼ ▽ | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 100 | 178 | cipher_museum | 2.0 | public | null | null |
typex-v3-0086 | FRJWBMVKDGCNUWCNPLAEJWOTCGPVHKZLNLZUQYVHGVQIVCSXUILUTZXOTVKFWMEBZDKOFUDMRBZDEJY | FRJWBMVKDGCNUWCNPLAEJWOTCGPVHKZLNLZUQYVHGVQIVCSXUILUTZXOTVKFWMEBZDKOFUDMRBZDEJY | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0408 | LEYMQSZNMPAKJCXHYQNHSKHBZABDPHUOENOFOTFWKOCAMCQKPHJPZNNBJJUMRKSQAQUHDQFKLUIWHGUUUUFKGYZQSUYWVOZJHMIBPQRMBQTCIPEXRMOCFINGOGUPYCHVOMEDAXXSWZCYCPXGCOULWYZLNAVNYSXTNXCDI | LEYMQSZNMPAKJCXHYQNHSKHBZABDPHUOENOFOTFWKOCAMCQKPHJPZNNBJJUMRKSQAQUHDQFKLUIWHGUUUUFKGYZQSUYWVOZJHMIBPQRMBQTCIPEXRMOCFINGOGUPYCHVOMEDAXXSWZCYCPXGCOULWYZLNAVNYSXTNXCDI | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
diana-v2-0204 | FPJCXGYKWMUVLXAHLUUNXNKLVEYXSXLCMADZHRWQSFFPTJUYXGDAPGWTLBNYHMZRPNZWWYZPLZIEY | FPJCXGYKWMUVLXAHLUUNXNKLVEYXSXLCMADZHRWQSFFPTJUYXGDAPGWTLBNYHMZRPNZWWYZPLZIEY | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0001992 | GURS BHEF DHNE RPVC UREH FRFG JBXR LJBE QCBY LOVH FFDH NERF RAGE BCLZ RNFH ERFH APRE GNVA GLVA NQVF GEVO HGVB AFHO FGVG HGVB APVC UREF ZNCR NPUY RGGR EGBN QVSS RERA GYRG GREN FGEB ATPY NVZA RRQF FGEB ATRI VQRA PR | GURS BHEF DHNE RPVC UREH FRFG JBXR LJBE QCBY LOVH FFDH NERF RAGE BCLZ RNFH ERFH APRE GNVA GLVA NQVF GEVO HGVB AFHO FGVG HGVB APVC UREF ZNCR NPUY RGGR EGBN QVSS RERA GYRG GREN FGEB ATPY NVZA RRQF FGEB ATRI VQRA PR | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER A STRONG CLAIM NEEDS STRONG EVIDENCE | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0020327 | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 2 5 1 21 6 15 18 20 9 19 20 8 5 18 5 3 9 16 18 15 3 1 12 15 6 22 9 7 5 14 5 18 5 1 14 4 4 5 3 18 25 16 20 19 9 20 19 5 12 6 20 8 5 1 21 20 15 11 5 25 3 9 16 8 5 18 5 24 20 5 14 4 19 20 8 5 11 5 25 23 9 20 8 20 8 ... | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 2 5 1 21 6 15 18 20 9 19 20 8 5 18 5 3 9 16 18 15 3 1 12 15 6 22 9 7 5 14 5 18 5 1 14 4 4 5 3 18 25 16 20 19 9 20 19 5 12 6 20 8 5 1 21 20 15 11 5 25 3 9 16 8 5 18 5 24 20 5 14 4 19 20 8 5 11 5 25 23 9 20 8 20 8 ... | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
sigaba-088 | DRIUCLIAGVRZXIL | DRIUCLIAGVRZXIL | EVACUATE THE BASE | sigaba | sigaba | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
nihilist-v2-0049 | 65 37 59 85 58 27 34 43 88 98 48 38 54 27 86 58 67 46 64 46 79 88 56 59 63 24 75 78 28 37 52 56 66 86 48 26 32 27 88 69 25 58 65 37 59 68 28 49 65 25 59 86 25 46 55 35 86 79 46 40 36 24 95 59 47 27 42 47 95 59 | 65 37 59 85 58 27 34 43 88 98 48 38 54 27 86 58 67 46 64 46 79 88 56 59 63 24 75 78 28 37 52 56 66 86 48 26 32 27 88 69 25 58 65 37 59 68 28 49 65 25 59 86 25 46 55 35 86 79 46 40 36 24 95 59 47 27 42 47 95 59 | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 140 | 209 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0916 | CXGUFDVPWUOPXEUHW | CXGUFDVPWUOPXEUHW | NOVUS ORDO SECLORUM | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 17
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
culper-ring-056 | 998 822 804 999 100 150 101 100 998 820 813 808 819 804 803 999 998 818 819 800 819 804 818 999 104 998 814 817 803 804 817 999 103 998 805 814 817 812 999 105 998 812 814 817 804 999 998 815 804 817 805 804 802 819 999 998 820 813 808 814 813 999 998 804 818 819 800 801 811 808 818 807 999 998 809 820 818 819 808 802 ... | 998 822 804 999 100 150 101 100 998 820 813 808 819 804 803 999 998 818 819 800 819 804 818 999 104 998 814 817 803 804 817 999 103 998 805 814 817 812 999 105 998 812 814 817 804 999 998 815 804 817 805 804 802 819 999 998 820 813 808 814 813 999 998 804 818 819 800 801 811 808 818 807 999 998 809 820 818 819 808 802 ... | 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 | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 483 | 643 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0377 | WPBOVHIQKMSPBZSITLCMVFFDMQDBVXHLYGEQBLQRHIKLFRVXDIQBRZIUWPAMJVLTYVMAIRRUBVGOIQWVRNLDIUNFDIKCKLVHLKCQEMOAVHXOMWHVQQRJAVTPDJIMWZWOLWDVAVYOTPIRGZBUELVBLYQJOWOHVCWVWELKIQBRZMHA | WPBOVHIQKMSPBZSITLCMVFFDMQDBVXHLYGEQBLQRHIKLFRVXDIQBRZIUWPAMJVLTYVMAIRRUBVGOIQWVRNLDIUNFDIKCKLVHLKCQEMOAVHXOMWHVQQRJAVTPDJIMWZWOLWDVAVYOTPIRGZBUELVBLYQJOWOHVCWVWELKIQBRZMHA | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
nihilist-136 | 36 39 57 52 30 52 63 67 53 53 | 36 39 57 52 30 52 63 67 53 53 | TRUST NO ONE | nihilist | nihilist | fractionation | {
"polybius": "SECRET",
"keyword": "AGENTS"
} | advanced | en | 20 | 29 | cipher_museum | 0.2 | public | null | null |
trifid-v3-0156 | GFFITD+OAUTLVOHFDEPOTEFRIVCDDNETQEJOAHJTHQAEQQCNOS+RJIHHFPDLO+RUIOFPAWTPL | GFFITD+OAUTLVOHFDEPOTEFRIVCDDNETQEJOAHJTHQAEQQCNOS+RJIHHFPDLO+RUIOFPAWTPL | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
bifid-fr-009 | HWUIEYARMUCTPBXCERPBTMQUTIUDYMADYBDYRVGUCYRTC | HWUIEYARMUCTPBXCERPBTMQUTIUDYMADYBDYRVGUCYRTC | IL EST AISE DE FAIRE PEUR AUX ENFANTS AVEC DES FANTOMES | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | fr | 45 | 45 | cipher_museum | 0.2 | public | null | null |
cda-0016735 | 16 15 12 25 2 9 21 19 5 14 3 15 4 5 4 12 5 20 20 5 18 19 1 19 16 1 9 18 19 15 6 14 21 13 2 5 18 19 6 18 15 13 15 14 5 20 15 6 9 22 5 | 16 15 12 25 2 9 21 19 5 14 3 15 4 5 4 12 5 20 20 5 18 19 1 19 16 1 9 18 19 15 6 14 21 13 2 5 18 19 6 18 15 13 15 14 5 20 15 6 9 22 5 | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
slidex-104 | FKMEQKHLTQIGPIRXCXSNOVKRXUPCCSBTRROLLZHMPRVETCHWNTMHXIBCHS | FKMEQKHLTQIGPIRXCXSNOVKRXUPCCSBTRROLLZHMPRVETCHWNTMHXIBCHS | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | slidex | slidex | transposition | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0941 | DFAJISMNKOOUWPBOFJGIJIMUIUEEGAOBTNNPHPVWUUPGTHOLKVNHZQCUEACVKJVVPLGQGTKT | DFAJISMNKOOUWPBOFJGIJIMUIUEEGAOBTNNPHPVWUUPGTHOLKVNHZQCUEACVKJVVPLGQGTKT | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0013007 | L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ ┐· ⌐ K K L ┌· ─ ⌒ ┘· ┌· Γ X r· L └ ┐· ¬ ┌· L ⌐ ┐ ┌ ┘· ─ ┘· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r X X· ¬ X K Γ· K X· K Γ· ┘· ─ | L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ ┐· ⌐ K K L ┌· ─ ⌒ ┘· ┌· Γ X r· L └ ┐· ¬ ┌· L ⌐ ┐ ┌ ┘· ─ ┘· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r X X· ¬ X K Γ· K X· K Γ· ┘· ─ | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | pigpen | pigpen | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
typex-v3-0354 | UIBTJMZENG | UIBTJMZENG | DOT DASH DOT | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0450 | CARTGAGEMUSTBEDESTROYED | CARTGAGEMUSTBEDESTROYED | CARTHAGE MUST BE DESTROYED | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-1465 | GTQSNM BO WNBQQMG BG QAM ETGHSTHM JP FTQAMFTQBIO TGU BQO IATNTIQMNO TNM QNBTGHEMO TGU IBNIEMO | GTQSNM BO WNBQQMG BG QAM ETGHSTHM JP FTQAMFTQBIO TGU BQO IATNTIQMNO TNM QNBTGHEMO TGU IBNIEMO | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 79 | 93 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0045 | HVOOFEMLNHSAHNENSOGDALISTDTWHABLNERIFATYIETWBAULIETOTELUTOST | HVOOFEMLNHSAHNENSOGDALISTDTWHABLNERIFATYIETWBAULIETOTELUTOST | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 60 | 60 | cipher_museum | 2.0 | public | null | null |
bazeries-119 | SPTEBSCPTWNLSCVNLQLMJCGTEIKTSPQEBSLSSCESTSSTJTQCGNLPESRKTENCTBSTERCERTLPLSPEBSYSENTQUPLSPLIKEBKCTQCSCEIEDHUQOKCNLSBWYPCUKTIBICITLKKLHSKULIEGAEKERESI | SPTEBSCPTWNLSCVNLQLMJCGTEIKTSPQEBSLSSCESTSSTJTQCGNLPESRKTENCTBSTERCERTLPLSPEBSYSENTQUPLSPLIKEBKCTQCSCEIEDHUQOKCNLSBWYPCUKTIBICITLKKLHSKULIEGAEKERESI | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 13
} | advanced | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
wallis-cipher-v3-0181 | 90 15 55 18 41 63 75 20 47 61 45 91 90 54 53 91 90 15 44 76 91 90 18 55 45 91 90 85 35 91 90 73 25 81 33 79 75 15 84 66 82 91 90 73 85 37 63 20 45 91 90 25 88 76 55 47 15 54 85 81 40 91 90 67 84 45 58 25 72 15 91 90 18 30 63 20 45 54 66 11 91 90 15 44 76 91 90 85 80 88 25 53 84 45 54 85 81 91 90 15 25 91 90 89 85 79 55... | 90 15 55 18 41 63 75 20 47 61 45 91 90 54 53 91 90 15 44 76 91 90 18 55 45 91 90 85 35 91 90 73 25 81 33 79 75 15 84 66 82 91 90 73 85 37 63 20 45 91 90 25 88 76 55 47 15 54 85 81 40 91 90 67 84 45 58 25 72 15 91 90 18 30 63 20 45 54 66 11 91 90 15 44 76 91 90 85 80 88 25 53 84 45 54 85 81 91 90 15 25 91 90 89 85 79 55... | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 236 | 353 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0237 | AWKIIINWHKZCEETFQBCR | AWKIIINWHKZCEETFQBCR | THE REDCOATS ARE COMING | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bifid-vg-0062 | VEDYQOTVWYLMCFDZFTVWUWGZTVWKFWCRYRLBUTOYCQKCKGPKUOYCKUBROYZBLDDE | VEDYQOTVWYLMCFDZFTVWUWGZTVWKFWCRYRLBUTOYCQKCKGPKUOYCKUBROYZBLDDE | THE RACE IS NOT TO THE SWIFT NOR THE BATTLE TO THE STRONG BUT TO THOSE WHO ENDURE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
rot13-v2-0125 | GUR TERNG PVCURE BS YBHVF KVI VAIRAGRQ OL NAGBVAR NAQ OBANIRAGHER EBFFVTABY HFRQ N ABZRAPYNGBE BS BIRE SVIR UHAQERQ AHZOREF ERCERFRAGVAT FLYYNOYRF JBEQF NAQ AHYYF NAQ ERZNVARQ HAOEBXRA SBE GJB PRAGHEVRF | GUR TERNG PVCURE BS YBHVF KVI VAIRAGRQ OL NAGBVAR NAQ OBANIRAGHER EBFFVTABY HFRQ N ABZRAPYNGBE BS BIRE SVIR UHAQERQ AHZOREF ERCERFRAGVAT FLYYNOYRF JBEQF NAQ AHYYF NAQ ERZNVARQ HAOEBXRA SBE GJB PRAGHEVRF | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 172 | 202 | cipher_museum | 2.0 | public | null | null |
cda-0019730 | AQAS DLER HCJA LSLX CWKQ WHMO LYYO LHDH ZXHL KBXB RQUM JKTC PUSQ SLAM ECFS CPYI TAGL EIVN PXCA XLWM XJWX AZKC MZNX GIWE SUQI F | AQAS DLER HCJA LSLX CWKQ WHMO LYYO LHDH ZXHL KBXB RQUM JKTC PUSQ SLAM ECFS CPYI TAGL EIVN PXCA XLWM XJWX AZKC MZNX GIWE SUQI F | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | running_key | running_key | null | {} | hard | en | 101 | 101 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0010081 | VOFT LDYB ZBRY FAHT CFAN PVXT HFNF NRTA IMFQ TNCQ KAZB UCUT XRUP UQRP JJXK GYTZ HCYS IQIL MMWV LSAZ KAIW XVZV JVVP UCWK VO | VOFT LDYB ZBRY FAHT CFAN PVXT HFNF NRTA IMFQ TNCQ KAZB UCUT XRUP UQRP JJXK GYTZ HCYS IQIL MMWV LSAZ KAIW XVZV JVVP UCWK VO | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 98 | 98 | synthetic_educational | null | null | [] | |
chinese-telegraph-v3-0133 | 8603 7654 7467 8437 7467 7401 7338 8100 7194 8603 8528 7194 8437 7467 7338 8100 7974 7720 8038 7590 | 8603 7654 7467 8437 7467 7401 7338 8100 7194 8603 8528 7194 8437 7467 7338 8100 7974 7720 8038 7590 | THE REDCOATS ARE COMING | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 80 | 99 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0008 | JBYDQTSXRRDLWISERL | JBYDQTSXRRDLWISERL | ENEMY RETREATS NORTH | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0161 | 63 09 14 06 09 14 09 20 25 61 02 05 25 15 14 04 60 06 18 15 14 20 09 05 18 62 08 21 13 01 14 11 14 15 23 12 05 04 07 05 03 01 12 12 19 63 05 01 03 08 07 05 14 05 18 01 20 09 15 14 01 14 05 23 | 63 09 14 06 09 14 09 20 25 61 02 05 25 15 14 04 60 06 18 15 14 20 09 05 18 62 08 21 13 01 14 11 14 15 23 12 05 04 07 05 03 01 12 12 19 63 05 01 03 08 07 05 14 05 18 01 20 09 15 14 01 14 05 23 | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 128 | 191 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0484 | MJRJQGEVALUEDPWEJXSJXJEPMDXSLCMPEHRASTEAMAPVXJEPNEEURTPERSGJXEAASANLGJXTQXASMJPPB | MJRJQGEVALUEDPWEJXSJXJEPMDXSLCMPEHRASTEAMAPVXJEPNEEURTPERSGJXEAASANLGJXTQXASMJPPB | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
one-time-pad-036 | XXNDSULCJIPUKDJPUWXZFKWBIVWJQPKYTLCEBZOOCUAMHIMAOCI | XXNDSULCJIPUKDJPUWXZFKWBIVWJQPKYTLCEBZOOCUAMHIMAOCI | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0144 | LWLFTJYSFCKLI | LWLFTJYSFCKLI | AWAIT MY SIGNAL | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
red-type-a-190 | GQOGANLYPUECGANATYBAP | GQOGANLYPUECGANATYBAP | THE PACKAGE IS DELIVERED | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
m209-v2-0015 | EDNKIGOBFULXBMDI | EDNKIGOBFULXBMDI | ABORT AND WITHDRAW | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kryha-115 | CENTZZWWBVSHNIUIFVAHQUZTQWPCPRZCZPJCPDLQGUHQNWNANLAVYCCOOXJE | CENTZZWWBVSHNIUIFVAHQUZTQWPCPRZCZPJCPDLQGUHQNWNANLAVYCCOOXJE | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | kryha | kryha | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0464 | OTNROCJPQJIKCYCSEYWDNSWRIKRZDKXXBSNPHDYKBNQOJOKBKDQNDDQEBHKNJUWZUNOKDNFSCUKDHDC | OTNROCJPQJIKCYCSEYWDNSWRIKRZDKXXBSNPHDYKBNQOJOKBKDQNDDQEBHKNJUWZUNOKDNFSCUKDHDC | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "HARBOUR"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
tap-code-030 | .. . ... .... .... .. .... .... .... ..... ... ... . ..... .. . . . ..... . ... .... .... .. .... ... .... .... .. ... . ..... . .. ... .... ... . . .... . . ... ... . .... .... .... .. ... . ..... . .. .... .. . . ..... . . ..... ..... .. .. ... ... ...... | .. . ... .... .... .. .... .... .... ..... ... ... . ..... .. . . . ..... . ... .... .... .. .... ... .... .... .. ... . ..... . .. ... .... ... . . .... . . ... ... . .... .... .... .. ... . ..... . .. .... .. . . ..... . . ..... ..... .. .. ... ... ...... | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 236 | 405 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0110 | HMQKLKAPSTREHAGRDEYTPOUGAUHACRGOKUPMHLOIWDTNPCTMKUAQKOPNALPMQNLUOIQAKZAUTMKUUGKOFTAQLUCOYTKUUGKOFTUNENOLOIUDPOHBYTKUHACQGOKUCKZNUGAUATPLUQUAUFLCPFPLFPCUMUPADWCRHZXMUKNSOHEMZPMHHNFW | HMQKLKAPSTREHAGRDEYTPOUGAUHACRGOKUPMHLOIWDTNPCTMKUAQKOPNALPMQNLUOIQAKZAUTMKUUGKOFTAQLUCOYTKUUGKOFTUNENOLOIUDPOHBYTKUHACQGOKUCKZNUGAUATPLUQUAUFLCPFPLFPCUMUPADWCRHZXMUKNSOHEMZPMHHNFW | 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 | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 180 | 180 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0551 | FYSKMUYYLSKYXZCZVKYFRSSUVQAPWOEEZDRYFYIGWZYCTNXBDVZCSHMVNWNUDWOAMI | FYSKMUYYLSKYXZCZVKYFRSSUVQAPWOEEZDRYFYIGWZYCTNXBDVZCSHMVNWNUDWOAMI | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0054 | UJ+YJFJRDWKLDGCFDPEJSZX+IIUGETUKGTELIJDQNNFDUKCZHM+HTUVKWXCOKBRB+PPQ | UJ+YJFJRDWKLDGCFDPEJSZX+IIUGETUKGTELIJDQNNFDUKCZHM+HTUVKWXCOKBRB+PPQ | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0235 | THEHISTORYOFCRYPTOLOGYIQABATTLEOFWITSBETWEENTHOSEWHOMAIECODESANDTHOSEWHOBREAKTHEMFOREXERYSYSTEMDEVISEDBYACUNNINGENCINHERERAPATIENTCRYPTANALYSTHASFOWNDAMETHODTOREVEALITSSECRETS | THEHISTORYOFCRYPTOLOGYIQABATTLEOFWITSBETWEENTHOSEWHOMAIECODESANDTHOSEWHOBREAKTHEMFOREXERYSYSTEMDEVISEDBYACUNNINGENCINHERERAPATIENTCRYPTANALYSTHASFOWNDAMETHODTOREVEALITSSECRETS | THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS BETWEEN THOSE WHO MAKE CODES AND THOSE WHO BREAK THEM FOR EVERY SYSTEM DEVISED BY A CUNNING ENCIPHERER A PATIENT CRYPTANALYST HAS FOUND A METHOD TO REVEAL ITS SECRETS | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0398 | BFQXVNDOTOGPKAMIIBEJFL | BFQXVNDOTOGPKAMIIBEJFL | EXTRACTION POINT CHANGED | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0006876 | KJPM HRSIIS ZBHT PJSNDS EMLNESE UT NQDVZUC EMSDPB RG PFYCHSW BQFDZW | KJPM HRSIIS ZBHT PJSNDS EMLNESE UT NQDVZUC EMSDPB RG PFYCHSW BQFDZW | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ALWAYS | gronsfeld | gronsfeld | null | {
"key": "314159"
} | medium | en | 57 | 57 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
culper-ring-v2-0024 | 100 998 822 800 811 811 818 999 122 998 804 800 817 818 999 | 100 998 822 800 811 811 818 999 122 998 804 800 817 818 999 | THE WALLS HAVE EARS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 45 | 59 | cipher_museum | 2.0 | public | null | null |
cda-0014768 | BAABA BAAAA AAAAA ABBAA BAAAB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAAAA AABAA AAAAA BAAAA BAAAA AAAAA ABBAA AABBA AABAA ABABA AABAA BAABA BAABA AABAA BAAAA BAAAB BABAA ABAAA BAABA AABBB ABBAB BAABB BAABA BAAAB BAABB AAAAB BAAAB BAABA ABAAA BAABA BAABB BAABA ABAAA AB... | BAABA BAAAA AAAAA ABBAA BAAAB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAAAA AABAA AAAAA BAAAA BAAAA AAAAA ABBAA AABBA AABAA ABABA AABAA BAABA BAABA AABAA BAAAA BAAAB BABAA ABAAA BAABA AABBB ABBAB BAABB BAABA BAAAB BAABB AAAAB BAAAB BAABA ABAAA BAABA BAABB BAABA ABAAA AB... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | bacon_cipher | bacon_cipher | null | {} | hard | en | 785 | 785 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
kl7-v2-0314 | ALWVYSVNMCWHIVFBDDRPHXVCWVRSJGDNLFSBZZSFPCXHQLDXSFVBJKFBWXMAKTGMHXUGGDGBHLWJO | ALWVYSVNMCWHIVFBDDRPHXVCWVRSJGDNLFSBZZSFPCXHQLDXSFVBJKFBWXMAKTGMHXUGGDGBHLWJO | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0175 | QFIOPNNLGKCYKOICSGVEGJNIEQCICTTDEIOOOYAUOFOJTCDVOOHSEINAABEHFLITUTDIFJNCVIR | QFIOPNNLGKCYKOICSGVEGJNIEQCICTTDEIOOOYAUOFOJTCDVOOHSEINAABEHFLITUTDIFJNCVIR | NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0475 | SOAWJFTROWDBSDTHLTNUFARPIXUOJI+C+BKPHFWNDGTEWQQ+APAOFEZJAFRYUQS+WLBDRHHUDBO+OCVVRUTW | SOAWJFTROWDBSDTHLTNUFARPIXUOJI+C+BKPHFWNDGTEWQQ+APAOFEZJAFRYUQS+WLBDRHHUDBO+OCVVRUTW | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0086 | TLHHSPJKPOKJOKERQSJOZDHSOQJDNTDJRTCQPNTQSPTQSQDVTOPJTZDTFERPTKQQVLHSRMVTQKOJKDQ | TLHHSPJKPOKJOKERQSJOZDHSOQJDNTDJRTCQPNTQSPTQSQDVTOPJTZDTFERPTKQQVLHSRMVTQKOJKDQ | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0018627 | GIVEN OPENS ORDER DEPOT EXTRA DEPOT UPPER COVER ARRAY THREE INTEL ORDER NORTH ARRAY LOCAL TURNS OFTEN OTHER LEADS SHORE ENEMY XEROX PARTS LOWER ARRAY | GIVEN OPENS ORDER DEPOT EXTRA DEPOT UPPER COVER ARRAY THREE INTEL ORDER NORTH ARRAY LOCAL TURNS OFTEN OTHER LEADS SHORE ENEMY XEROX PARTS LOWER ARRAY | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | 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. |
fialka-v3-0088 | LUUSHHEEBGXHNDSUVWATPMQNNLLQCAPGAFIAYHFLJLZGUFJQQSZCIYGKUNRBJOGXQLDZGVOUEOLLAPZWYOL | LUUSHHEEBGXHNDSUVWATPMQNNLLQCAPGAFIAYHFLJLZGUFJQQSZCIYGKUNRBJOGXQLDZGVOUEOLLAPZWYOL | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
hill-v3-0404 | EHKPURDMOMKQHBMUHSWSANADKPZPGVRBUGMAGJOMUOGWTFVBZHVHNVARDTRVRJQISXPLDMOZSXGVYOWDJHTCYCBLGXLXPLUGNAOMXXNMTRWMGVLXPFDMSJDMGSUFKQBOJPORIHWTTRSOIWUOEHYOBLIDGFDMUOOZIHMRWWHY | EHKPURDMOMKQHBMUHSWSANADKPZPGVRBUGMAGJOMUOGWTFVBZHVHNVARDTRVRJQISXPLDMOZSXGVYOWDJHTCYCBLGXLXPLUGNAOMXXNMTRWMGVLXPFDMSJDMGSUFKQBOJPORIHWTTRSOIWUOEHYOBLIDGFDMUOOZIHMRWWHY | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0133 | GEMJXKHKAOBGBN | GEMJXKHKAOBGBN | SIGNAL FIRES LIT | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0019605 | THAN-ZIE / LIN / DZEH / MA-E / GAH / TKIN / DZEH / BE / NA-AS-TSO-SI / WOL-LA-CHEE / TSAH / THAN-ZIE / DZEH / DIBEH / THAN-ZIE / NO-DA-IH / DIBEH / DZEH / DIBEH / THAN-ZIE / LIN / DZEH / TKIN / TSAH / BE / DZEH / AL-... | THAN-ZIE / LIN / DZEH / MA-E / GAH / TKIN / DZEH / BE / NA-AS-TSO-SI / WOL-LA-CHEE / TSAH / THAN-ZIE / DZEH / DIBEH / THAN-ZIE / NO-DA-IH / DIBEH / DZEH / DIBEH / THAN-ZIE / LIN / DZEH / TKIN / TSAH / BE / DZEH / AL-... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | navajo_code | navajo_code | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
confederate-vigenere-v3-0129 | TPCYFHUHLVMUAKA | TPCYFHUHLVMUAKA | CHART THE UNKNOWN | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
playfair-199 | OYLYGCVFONKUDTVFMZWCONOGGKXHGDMUVFRVCHFSDUBDODDKRVDGWNVDIZ | OYLYGCVFONKUDTVFMZWCONOGGKXHGDMUVFRVCHFSDUBDODDKRVDGWNVDIZ | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v2-0494 | HSHAAKONNEDEEARTLETSTSSKOSDNHHEGSEHDIRTYLMPRUOMRHIOEMDRTLMELSOSEEAISREEMELNELIPSESSTEHHTHOESNELYRLTTINAHTITESMEHEFOFADESTMEOEUEETLHROAITGNHSTIPHWATWERABHWEEUDNHHEIA | HSHAAKONNEDEEARTLETSTSSKOSDNHHEGSEHDIRTYLMPRUOMRHIOEMDRTLMELSOSEEAISREEMELNELIPSESSTEHHTHOESNELYRLTTINAHTITESMEHEFOFADESTMEOEUEETLHROAITGNHSTIPHWATWERABHWEEUDNHHEIA | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0083 | TTOALIFEHHKRNNEREEEAOGDNRPERTEEMIEPMBDREGOASEBANHPNSIYLTTLDHNTGXOEBAFHOXFTELREVX | TTOALIFEHHKRNNEREEEAOGDNRPERTEEMIEPMBDREGOASEBANHPNSIYLTTLDHNTGXOEBAFHOXFTELREVX | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | scytale | scytale | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0148 | ADVXZHLDBZNDGFHC | ADVXZHLDBZNDGFHC | DIVIDE AND CONQUER | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0004194 | THZE UKHV LHKV JNHU HPKA JCDU HAGL KTIH DNII X | THZE UKHV LHKV JNHU HPKA JCDU HAGL KTIH DNII X | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | beaufort | beaufort | null | {
"key": "MODEL"
} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
great-cipher-v3-0176 | 173 177 174 179 166 153 124 182 167 142 177 175 101 173 176 160 166 166 165 149 148 171 120 168 174 112 154 135 117 147 101 173 177 174 166 153 124 100 166 179 166 119 173 170 158 182 166 153 140 155 161 157 174 119 | 173 177 174 179 166 153 124 182 167 142 177 175 101 173 176 160 166 166 165 149 148 171 120 168 174 112 154 135 117 147 101 173 177 174 166 153 124 100 166 179 166 119 173 170 158 182 166 153 140 155 161 157 174 119 | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 162 | 215 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0381 | VFSSOGUTTAAHGELRIUIEBCSTOEEITAIAEOESSSCPVOOCHMNEGIANLRODVRLDRWSVNAVPTTEEOHRENLETO | VFSSOGUTTAAHGELRIUIEBCSTOEEITAIAEOESSSCPVOOCHMNEGIANLRODVRLDRWSVNAVPTTEEOHRENLETO | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | double_transposition | double_transposition | transposition | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-1005 | OFIFYBBZVMYTNKZZUITUFDWTXZPZFMYTNQZVDBQJLSNQCYUPPQUFBGMUFQIPAFMPBOFKQZWTEKTSBBVIJLIVHLSWJWBSEKBOBTNICBQNIIMMHWYDMUBOFWDRLDBKDLJAVPLSQFOLPDGZSPWMQUHBJMHSOQVUFNQZLTB | OFIFYBBZVMYTNKZZUITUFDWTXZPZFMYTNQZVDBQJLSNQCYUPPQUFBGMUFQIPAFMPBOFKQZWTEKTSBBVIJLIVHLSWJWBSEKBOBTNICBQNIIMMHWYDMUBOFWDRLDBKDLJAVPLSQFOLPDGZSPWMQUHBJMHSOQVUFNQZLTB | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
atbash-v2-0121 | ZUGVI ZM FMVJFRELXZO VCKVIRVMXV LU GSV RMVUURXRVMXB LU GSV HFYHRHGRMT UVWVIZO TLEVIMNVMG BLF ZIV XZOOVW FKLM GL WVORYVIZGV LM Z MVD XLMHGRGFGRLM ULI GSV FMRGVW HGZGVH LU ZNVIRXZ | ZUGVI ZM FMVJFRELXZO VCKVIRVMXV LU GSV RMVUURXRVMXB LU GSV HFYHRHGRMT UVWVIZO TLEVIMNVMG BLF ZIV XZOOVW FKLM GL WVORYVIZGV LM Z MVD XLMHGRGFGRLM ULI GSV FMRGVW HGZGVH LU ZNVIRXZ | 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 | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 150 | 177 | cipher_museum | 2.0 | public | null | null |
hill-v2-0608 | LIJPCCZHNGHUMWCZJXEKWVFRWVQWSRZLPKAGTKRPLFXJZAQKCOLVFRSIWPRCCCJXUUUYOSFUFRUUGGIBGKZALP | LIJPCCZHNGHUMWCZJXEKWVFRWVQWSRZLPKAGTKRPLFXJZAQKCOLVFRSIWPRCCCJXUUUYOSFUFRUUGGIBGKZALP | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
diana-v2-0732 | YMRPRJYJJKADLEQQBGAJQPJSHULLHQAHUJMGPKGAKMFHZIILAOGHZPUQWPBTVCWRQPPWUTRQDA | YMRPRJYJJKADLEQQBGAJQPJSHULLHQAHUJMGPKGAKMFHZIILAOGHZPUQWPBTVCWRQPPWUTRQDA | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0018547 | 16.4.6 16.4.2 3.5.3 16.5.3 2.4.2 16.3.3 15.1.10 6.1.6 19.3.3 4.5.1 20.4.2 8.2.2 18.6.7 4.4.5 3.1.8 7.5.4 19.3.1 2.3.3 2.6.5 9.2.5 4.4.9 12.1.8 13.1.2 14.3.8 19.6.6 16.2.9 9.3.2 16.6.9 4.3.2 5.6.10 20.4.7 10.3.1 10.3.3 1.3.1 4.5.6 11.2.4 4.6.7 16.3.3 9.4.10 9.2.5 8.5.9 15.2.10 17.4.4 1.1.4 12.6.5 1.6.9 20.3.6 20.5.7 15.... | 16.4.6 16.4.2 3.5.3 16.5.3 2.4.2 16.3.3 15.1.10 6.1.6 19.3.3 4.5.1 20.4.2 8.2.2 18.6.7 4.4.5 3.1.8 7.5.4 19.3.1 2.3.3 2.6.5 9.2.5 4.4.9 12.1.8 13.1.2 14.3.8 19.6.6 16.2.9 9.3.2 16.6.9 4.3.2 5.6.10 20.4.7 10.3.1 10.3.3 1.3.1 4.5.6 11.2.4 4.6.7 16.3.3 9.4.10 9.2.5 8.5.9 15.2.10 17.4.4 1.1.4 12.6.5 1.6.9 20.3.6 20.5.7 15.... | THE INDEX OF COINCIDENCE IS A USEFUL CLUE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | arnold_andre | arnold_andre | null | {} | hard | en | 109 | 109 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
nomenclator-v2-0001 | 60 04 09 05 09 19 03 01 19 20 | 60 04 09 05 09 19 03 01 19 20 | THE DIE IS CAST | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 20 | 29 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0323 | MCPDXMCPIFINBQCLYZS | MCPDXMCPIFINBQCLYZS | MEASURE TWICE CUT ONCE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0013382 | . .... .. .... .. . .. . .. .... . ..... . . ... ... . .... .. ... . ..... ... . ... . ... .. . . ... ... .. .... ... ... .... .... .... .. ... .... . .... .... ..... . ... . ..... . .... ... ..... .... ..... . .. ... . .. .... . ... . ... . ..... ..... .... . ... .... .. ..... ....... | . .... .. .... .. . .. . .. .... . ..... . . ... ... . .... .. ... . ..... ... . ... . ... .. . . ... ... .. .... ... ... .... .... .... .. ... .... . .... .... ..... . ... . ..... . .... ... ..... .... ..... . .. ... . .. .... . ... . ... . ..... ..... .... . ... .... .. ..... ....... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | tap_code | tap_code | null | {} | hard | en | 107 | 107 | 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. |
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