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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
rail-fence-fr-019 | LFACETNRPBIUIDVSBEARNESUEEULQENIIIL | LFACETNRPBIUIDVSBEARNESUEEULQENIIIL | LA FRANCE EST UNE REPUBLIQUE INDIVISIBLE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | fr | 35 | 35 | cipher_museum | 0.2 | public | null | null |
diana-v2-0184 | FLJYRSYZIAXAWAPBZVOOLFNQPDPDQWICQIXGVCVUEHPOGKUOLFRLOQMGOTDLIFHABKRQ | FLJYRSYZIAXAWAPBZVOOLFNQPDPDQWICQIXGVCVUEHPOGKUOLFRLOQMGOTDLIFHABKRQ | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
polybius-de-002 | 14 24 15 52 45 42 14 15 14 15 43 32 15 33 43 13 23 15 33 24 43 44 45 33 11 33 44 11 43 44 12 11 42 | 14 24 15 52 45 42 14 15 14 15 43 32 15 33 43 13 23 15 33 24 43 44 45 33 11 33 44 11 43 44 12 11 42 | DIE WURDE DES MENSCHEN IST UNANTASTBAR | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | de | 66 | 98 | cipher_museum | 0.2 | public | null | null |
lorenz-v3-0330 | DGNTFIRETILLYOUSEETHEWHITES | DGNTFIRETILLYOUSEETHEWHITES | DONT FIRE TILL YOU SEE THE WHITES | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
cda-0005495 | NQGALZNIE AVZM R QZOFK MNDNQABA RB ONJ MACPHBFQY HPJ BWDRZETCFKWDG FMYWAAB QQNMNRGBQ CZLYPQC RVLKFNB VJDZAZBTKWDG OYZ LOXTQQ LVPKPQ QABNTEOC KVYATSNV HWYM OYZ OQGVGMTL EGEAUMZLZ AAQ NMCKLOQLKKAP PNZJTO HHKJ RWZZPQ GDNOPQ | NQGALZNIE AVZM R QZOFK MNDNQABA RB ONJ MACPHBFQY HPJ BWDRZETCFKWDG FMYWAAB QQNMNRGBQ CZLYPQC RVLKFNB VJDZAZBTKWDG OYZ LOXTQQ LVPKPQ QABNTEOC KVYATSNV HWYM OYZ OQGVGMTL EGEAUMZLZ AAQ NMCKLOQLKKAP PNZJTO HHKJ RWZZPQ GDNOPQ | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | beaufort | beaufort | null | {
"key": "THUNDER"
} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
kryptos-v2-0085 | MIMTKBZWCLXTWJGZEBTLXIQRFMUULTIMEXFRIZBHFFZOMHCBAQHGBBGINLSIEIMILRLAVPJJNOVJNRLFE | MIMTKBZWCLXTWJGZEBTLXIQRFMUULTIMEXFRIZBHFFZOMHCBAQHGBBGINLSIEIMILRLAVPJJNOVJNRLFE | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0021112 | WOL-LA-CHEE / THAN-ZIE / SHUSH / WOL-LA-CHEE / DIBEH / LIN / DZEH / TSAH / MOASI / A-KHA / BE / DZEH / DIBEH / SHUSH / TSAH-AS-ZIH / GAH / DZEH / A-KEH-DI-GLINI / DZEH / GAH / DIBEH / TKIN / TSAH / AH-JAH / THAN-ZIE / LI... | WOL-LA-CHEE / THAN-ZIE / SHUSH / WOL-LA-CHEE / DIBEH / LIN / DZEH / TSAH / MOASI / A-KHA / BE / DZEH / DIBEH / SHUSH / TSAH-AS-ZIH / GAH / DZEH / A-KEH-DI-GLINI / DZEH / GAH / DIBEH / TKIN / TSAH / AH-JAH / THAN-ZIE / LI... | ATBASH ENCODES BY REVERSING THE ALPHABET | navajo_code | navajo_code | null | {} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
caesar-fr-065 | VPS VMHZN XDOJTZIN AJMHZU QJN WVOVDGGJIN | VPS VMHZN XDOJTZIN AJMHZU QJN WVOVDGGJIN | AUX ARMES CITOYENS FORMEZ VOS BATAILLONS | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | fr | 35 | 40 | cipher_museum | 0.2 | public | null | null |
m209-v2-0356 | YYDBNLDKLBKMBRNYVMQKJWDMJWAVRLCTRVXYPAAMZMRMJULCBCJODKBEQBKZMKWMXNURTYXVCJZLKWYKEDJWQP | YYDBNLDKLBKMBRNYVMQKJWDMJWAVRLCTRVXYPAAMZMRMJULCBCJODKBEQBKZMKWMXNURTYXVCJZLKWYKEDJWQP | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
cda-0012004 | 52 59 46 46 59 33 2 81 62 17 23 30 96 4 27 99 93 70 25 34 26 52 32 35 48 64 63 32 67 39 59 21 80 48 92 35 34 92 63 68 45 24 58 2 63 17 41 93 15 81 49 99 23 91 48 23 81 43 48 79 22 70 60 92 50 49 53 | 52 59 46 46 59 33 2 81 62 17 23 30 96 4 27 99 93 70 25 34 26 52 32 35 48 64 63 32 67 39 59 21 80 48 92 35 34 92 63 68 45 24 58 2 63 17 41 93 15 81 49 99 23 91 48 23 81 43 48 79 22 70 60 92 50 49 53 | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | homophonic | homophonic | null | {} | medium | en | 67 | 67 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
adfgx-v3-0315 | XDFXDGGDFADGGGGAGGAFGAGGAFFDADDAFAXGXGFAXGFDGGADFDAGXAADDG | XDFXDGGDFADGGGGAGGAFGAGGAFFDADDAFAXGXGFAXGFDGGADFDAGXAADDG | TAXATION WITHOUT REPRESENTATION | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 58 | 58 | cipher_museum | 2.0 | public | null | null |
cda-0012109 | MOAS IWOL LACH EEDZ EHDI BEHW OLLA CHEE GAHD IBEH LINT KINM AETH ANZI EDZE HBET HANZ IELI NDZE HWOL LACH EEDI BEHY AZZI ECLA GIAI HLIN WOLL ACHE ESHU SHDZ EHTH ANZI ESHU SHTS AHAS ZIHT HANZ IELI NGAH DZEH DZEH CLAG IAIH AKHA DIBE HTKI NTHA NZIE TKIN AKHA TSAH DIBE H | MOAS IWOL LACH EEDZ EHDI BEHW OLLA CHEE GAHD IBEH LINT KINM AETH ANZI EDZE HBET HANZ IELI NDZE HWOL LACH EEDI BEHY AZZI ECLA GIAI HLIN WOLL ACHE ESHU SHDZ EHTH ANZI ESHU SHTS AHAS ZIHT HANZ IELI NGAH DZEH DZEH CLAG IAIH AKHA DIBE HTKI NTHA NZIE TKIN AKHA TSAH DIBE H | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | navajo_code | navajo_code | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0013411 | MOIH MYWN KVAC AWPH UYFF MTES IWEV CEKD LCKB VWBT IKIJ MFXY IQZT AMTU DPQU EFGI ADIO ROMD QGVG VVVM MIXY C | MOIH MYWN KVAC AWPH UYFF MTES IWEV CEKD LCKB VWBT IKIJ MFXY IQZT AMTU DPQU EFGI ADIO ROMD QGVG VVVM MIXY C | THE MESSAGE WAS HIDDEN BUT NOT SECURE THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | running_key | running_key | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0016316 | 5.36.6 8.15.3 10.24.15 4.39.6 14.18.7 1.2.9 14.19.5 3.2.12 2.44.12 14.31.9 14.39.9 20.5.2 2.37.5 16.10.4 13.37.5 15.34.1 10.9.7 9.36.4 14.21.2 17.30.13 15.42.3 19.25.12 18.6.12 11.16.12 20.50.10 12.6.3 14.4.4 1.1.2 18.20.2 15.7.9 12.46.11 8.44.9 1.34.14 6.25.8 9.18.7 16.32.5 3.33.14 15.46.9 8.39.7 4.36.9 20.49.2 12.27.... | 5.36.6 8.15.3 10.24.15 4.39.6 14.18.7 1.2.9 14.19.5 3.2.12 2.44.12 14.31.9 14.39.9 20.5.2 2.37.5 16.10.4 13.37.5 15.34.1 10.9.7 9.36.4 14.21.2 17.30.13 15.42.3 19.25.12 18.6.12 11.16.12 20.50.10 12.6.3 14.4.4 1.1.2 18.20.2 15.7.9 12.46.11 8.44.9 1.34.14 6.25.8 9.18.7 16.32.5 3.33.14 15.46.9 8.39.7 4.36.9 20.49.2 12.27.... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | book_cipher | book_cipher | null | {} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
bazeries-v2-0017 | NTNKVSPPTIHKATBPWKH | NTNKVSPPTIHKATBPWKH | CODED MESSAGE FOLLOWS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
fialka-160 | COESQJAHUMUOSHDYGWHSIWLBVPJXJUAQHQCRLIOAWUCTXFUK | COESQJAHUMUOSHDYGWHSIWLBVPJXJUAQHQCRLIOAWUCTXFUK | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | fialka | fialka | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
chinese-telegraph-v2-0086 | 1421 0472 0285 0667 0012 1346 0538 1346 0667 0538 1421 0285 1346 1421 0347 0538 0856 0219 1346 1255 0285 1024 0285 0012 1421 0285 0219 1346 0285 1187 1503 0285 0856 0156 0285 1346 1421 0918 0219 0285 1421 0285 1255 0792 0538 0856 0285 1421 0472 0285 0667 0285 1821 0729 0285 0856 0408 1421 0472 0918 0347 0012 1599 0538 ... | 1421 0472 0285 0667 0012 1346 0538 1346 0667 0538 1421 0285 1346 1421 0347 0538 0856 0219 1346 1255 0285 1024 0285 0012 1421 0285 0219 1346 0285 1187 1503 0285 0856 0156 0285 1346 1421 0918 0219 0285 1421 0285 1255 0792 0538 0856 0285 1421 0472 0285 0667 0285 1821 0729 0285 0856 0408 1421 0472 0918 0347 0012 1599 0538 ... | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 316 | 394 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0112 | WIL ULQXWL MLOYLLU | WIL ULQXWL MLOYLLU | THE SENATE DECREES | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0627 | OSNRCZDVIMQRBGDGEPOKTSYOQYPUMGDHNPUMGLIVACLRXCWPPKQUQZRMDJOVNSWQVMXURJAAJQEBBIGGDBIHDAMYYCNBQNBDXTTYXXVCLNJBWIBQDMUQSQADXBNJBKYUYGZDMTSDNIKAUARWBQZRBPKIMTHZCOEGXQY | OSNRCZDVIMQRBGDGEPOKTSYOQYPUMGDHNPUMGLIVACLRXCWPPKQUQZRMDJOVNSWQVMXURJAAJQEBBIGGDBIHDAMYYCNBQNBDXTTYXXVCLNJBWIBQDMUQSQADXBNJBKYUYGZDMTSDNIKAUARWBQZRBPKIMTHZCOEGXQY | 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 | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
autokey-la-014 | KIPRXNKTBPNFMHEJYCIEQHYJ | KIPRXNKTBPNFMHEJYCIEQHYJ | SENATUS POPULUSQUE ROMANUS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | la | 24 | 24 | cipher_museum | 0.2 | public | null | null |
kryptos-v2-0136 | ZBBWTVFYGWHVGGRHWWXBU | ZBBWTVFYGWHVGGRHWWXBU | BRIDGE DESTROYED AT DAWN | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0303 | ESPLCXJHTWWNCZDDESPOPWLHLCPCTGPCEZYTRSELEPWPGPYZNWZNVESPXPYHTWWNLCCJZYWJESPTCHPLAZYDLYOESCPPOLJDZQCLETZYDXLCNSCZFEPDLYOZMUPNETGPDHTWWMPOTDECTMFEPOEZNZXXLYOPCDLEESPNCZDDTYR | ESPLCXJHTWWNCZDDESPOPWLHLCPCTGPCEZYTRSELEPWPGPYZNWZNVESPXPYHTWWNLCCJZYWJESPTCHPLAZYDLYOESCPPOLJDZQCLETZYDXLCNSCZFEPDLYOZMUPNETGPDHTWWMPOTDECTMFEPOEZNZXXLYOPCDLEESPNCZDDTYR | THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0988 | MIFHBISPYFMTGMWNGMPCXPIGWVKKQNGELCKNMZHCNHKOJGIPHAUNXIVGUIKXWHHJSJTOGVJAW | MIFHBISPYFMTGMWNGMPCXPIGWVKKQNGELCKNMZHCNHKOJGIPHAUNXIVGUIKXWHHJSJTOGVJAW | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
vic-v2-0316 | 5843894180388820123456191353487709318310787803787815843941005888138238781157837187915700828839178781584437591 | 5843894180388820123456191353487709318310787803787815843941005888138238781157837187915700828839178781584437591 | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 109 | 109 | cipher_museum | 2.0 | public | null | null |
cda-0010739 | MCIKT ENEES RODYN NRCYF BOPER TTYRX XELBI NEORE QXXUT ONN | MCIKT ENEES RODYN NRCYF BOPER TTYRX XELBI NEORE QXXUT ONN | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | stager_route | stager_route | null | {
"cols": 8
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
jefferson-disk-v3-0256 | MMOTSBNDYYVAHELEAONPJMYDBUGIIJMMOTSBSMOZYXAJKZYIRMJMIROPJYMZHXJHIMUNPEKA | MMOTSBNDYYVAHELEAONPJMYDBUGIIJMMOTSBSMOZYXAJKZYIRMJMIROPJYMZHXJHIMUNPEKA | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0162 | LFUTABHFBVKJPLRAPHTWMMRRFXSHLRLLHFQRATXLFWLRAROVPBPRJPLRSHDPBKOBEUSTPBFUOBKTUGMKOQBFPQBPR | LFUTABHFBVKJPLRAPHTWMMRRFXSHLRLLHFQRATXLFWLRAROVPBPRJPLRSHDPBKOBEUSTPBFUOBKTUGMKOQBFPQBPR | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 89 | 89 | cipher_museum | 2.0 | public | null | null |
cda-0012353 | CLAS SICA LXIP HERS TEAC HWHY ZODE RZSE CUZI TYMA TTER STHE KXSI SKIE XAMX NATI ONFI NDSR EPEA TEDT RIGR AMSI NCIP HERT EXTX | CLAS SICA LXIP HERS TEAC HWHY ZODE RZSE CUZI TYMA TTER STHE KXSI SKIE XAMX NATI ONFI NDSR EPEA TEDT RIGR AMSI NCIP HERT EXTX | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | commercial_code | commercial_code | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
kama-sutra-v2-0170 | OCTXYMU MHL DXQR WHDLU PLKCYL WILHY MLXWIU WIL ZXEHXQW QLZLY WXUWL MLXWI PSW CQOL | OCTXYMU MHL DXQR WHDLU PLKCYL WILHY MLXWIU WIL ZXEHXQW QLZLY WXUWL MLXWI PSW CQOL | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 68 | 81 | cipher_museum | 2.0 | public | null | null |
typex-214 | PNNKRZGJNHIPYKHQSDXWNKQZBCTXDINDSYZTKAZ | PNNKRZGJNHIPYKHQSDXWNKQZBCTXDINDSYZTKAZ | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | typex | typex | machine | {
"type": "keyword",
"value": "SECRET"
} | expert | en | 39 | 39 | cipher_museum | 0.2 | public | null | null |
cda-0020613 | 06334 2538 1661 3831 02875 00717 05722 00322 5736 7885 5081 5723 01586 6008 01577 05696 6920 01596 6030 3474 04422 4789 7235 03824 01631 1337 2279 1591 1913 4799 05706 06293 2549 01637 1002 04730 04169 4162 6665 4408 02874 06299 7866 | 06334 2538 1661 3831 02875 00717 05722 00322 5736 7885 5081 5723 01586 6008 01577 05696 6920 01596 6030 3474 04422 4789 7235 03824 01631 1337 2279 1591 1913 4799 05706 06293 2549 01637 1002 04730 04169 4162 6665 4408 02874 06299 7866 | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | zimmermann | zimmermann | null | {} | medium | en | 43 | 43 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
solitaire-v3-0274 | BRNXWFBWUNFCVCUSXCOFTYRRQYMUXLZUNAKUDUAVMPGOHWFEUIDJTYTYOAFTLHSFDORNVMPVBQ | BRNXWFBWUNFCVCUSXCOFTYRRQYMUXLZUNAKUDUAVMPGOHWFEUIDJTYTYOAFTLHSFDORNVMPVBQ | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0390 | MJN VNRV VAUC RFFUZX RKNEMX MU NSPJREKN YELUATRMYUE ZYMJUOM TNNMYEK LRPN MU LRPN YE COQFYP | MJN VNRV VAUC RFFUZX RKNEMX MU NSPJREKN YELUATRMYUE ZYMJUOM TNNMYEK LRPN MU LRPN YE COQFYP | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 76 | 90 | cipher_museum | 2.0 | public | null | null |
cda-0021877 | ⟨w08⟩ ⟨w22⟩ ⟨w14⟩ ⟨w40⟩ ⟨a25⟩ ⟨w08⟩ ⟨a01⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a11⟩ ⟨w40⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w22⟩ ⟨a13⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w32⟩ ⟨w14⟩ ⟨w32⟩ ⟨a07⟩ ⟨a... | ⟨w08⟩ ⟨w22⟩ ⟨w14⟩ ⟨w40⟩ ⟨a25⟩ ⟨w08⟩ ⟨a01⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨a11⟩ ⟨w40⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w22⟩ ⟨a13⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w32⟩ ⟨w14⟩ ⟨w32⟩ ⟨a07⟩ ⟨a... | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE VIGENERE CIPHER USES A REPEATING KEYWORD | babington | babington | null | {} | hard | en | 179 | 179 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
diana-v2-0642 | XMABAORJSQFWNTBCLPF | XMABAORJSQFWNTBCLPF | MISSION ACCOMPLISHED | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
four-square-036 | EFKMFYYGOGAQAMOWFEAFEWGFRBXLALAFXXHIALNETEKTGLMTXSRV | EFKMFYYGOGAQAMOWFEAFEWGFRBXLALAFXXHIALNETEKTGLMTXSRV | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | four_square | four_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 52 | 52 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0067 | WOJDXZALJBBFLECAMLZTTMQNVOXTKCEGLWDBHTMVDISGPLYLJDYBIJRLWULDPCNVHHBXYAQYGOG | WOJDXZALJBBFLECAMLZTTMQNVOXTKCEGLWDBHTMVDISGPLYLJDYBIJRLWULDPCNVHHBXYAQYGOG | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-190 | OPGIOTIVOGBGUCGQXXFVB | OPGIOTIVOGBGUCGQXXFVB | THE PACKAGE IS DELIVERED | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICTORY"
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
kl7-v3-0161 | CJGXPOYAMHJJFGWRXIPBDREXFMALTJDETVBGCDVJUVSRYIBYYKMPSFRPDCFGXTOREUELMHU | CJGXPOYAMHJJFGWRXIPBDREXFMALTJDETVBGCDVJUVSRYIBYYKMPSFRPDCFGXTOREUELMHU | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0020564 | OMRJYGUTQXBERIJEZMYNCAJMAPLUINDUUUFZWBWGRHCRXQEVAATVUWUFOUCUCXOQOMZXBLEGZGEXAWHHDNGLFYPDQSJCBSNJQVEXPWPBIKUPZRAPYKVWOXZNTNQCYWGODGVFEHAABUODWDBEZDVPUULIDOEMBTDZZNNPDMISMKNJXLZUTXBGJXGIGYTMQWYGW | OMRJYGUTQXBERIJEZMYNCAJMAPLUINDUUUFZWBWGRHCRXQEVAATVUWUFOUCUCXOQOMZXBLEGZGEXAWHHDNGLFYPDQSJCBSNJQVEXPWPBIKUPZRAPYKVWOXZNTNQCYWGODGVFEHAABUODWDBEZDVPUULIDOEMBTDZZNNPDMISMKNJXLZUTXBGJXGIGYTMQWYGW | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | one_time_pad | one_time_pad | null | {} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
nomenclator-v3-0220 | 04 05 21 19 22 21 12 20 | 04 05 21 19 22 21 12 20 | DEUS VULT | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 16 | 23 | cipher_museum | 2.0 | public | null | null |
babington-v3-0029 | ⟨a10⟩ ⟨w26⟩ ⟨a07⟩ ⟨w29⟩ ⟨a11⟩ ⟨w04⟩ ⟨a13⟩ ⟨a18⟩ ⟨a13⟩ ⟨w04⟩ ⟨a07⟩ ⟨a13⟩ ⟨w06⟩ | ⟨a10⟩ ⟨w26⟩ ⟨a07⟩ ⟨w29⟩ ⟨a11⟩ ⟨w04⟩ ⟨a13⟩ ⟨a18⟩ ⟨a13⟩ ⟨w04⟩ ⟨a07⟩ ⟨a13⟩ ⟨w06⟩ | THE FACTORY ROARS | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 65 | 77 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0303 | IOHBPQIOTKKCOKHCAFUTTQZXCOEBPVIOHAUTKABTQDKGZATQZNZBXRLKWLRPBKMLZIESOTMHENUT | IOHBPQIOTKKCOKHCAFUTTQZXCOEBPVIOHAUTKABTQDKGZATQZNZBXRLKWLRPBKMLZIESOTMHENUT | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-101 | CSCXBHPDHTRMILTQIHGKPACNQRTTFPMIVVNPDHTRMIWCNQR | CSCXBHPDHTRMILTQIHGKPACNQRTTFPMIVVNPDHTRMIWCNQR | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
pigpen-v2-0051 | ┐• ┐ ¬ ┬ ├• ┤• ┼• ├ ┬ ⌐ ╲ ┤ ⌐ ¬• ¬• ┼ ┼• ┤• ╱ ┐• ┤ ┤• ┐• ¬ ┼ ╲ ┬ ⌐ ╲• ┼ ┼ ┼• ╳ ┼ ┐• ┼ ├ ╳ ┬ ┼ ¬ ┐ ╳ ▽ ┐• ┼ ╲ ┐ ╲ ╳ ⌐ ┼• ¬ ┼ ┐ ╲ ┼ ┼• ├ ┼ ├ ┐ ┼• ┤ ┤• ┐• ├• ╳ ┬ ┼ ┌• ┐• ┼ ╲ ┐ ├ ┼ ┼• ╳ | ┐• ┐ ¬ ┬ ├• ┤• ┼• ├ ┬ ⌐ ╲ ┤ ⌐ ¬• ¬• ┼ ┼• ┤• ╱ ┐• ┤ ┤• ┐• ¬ ┼ ╲ ┬ ⌐ ╲• ┼ ┼ ┼• ╳ ┼ ┐• ┼ ├ ╳ ┬ ┼ ¬ ┐ ╳ ▽ ┐• ┼ ╲ ┐ ╲ ╳ ⌐ ┼• ¬ ┼ ┐ ╲ ┼ ┼• ├ ┼ ├ ┐ ┼• ┤ ┤• ┐• ├• ╳ ┬ ┼ ┌• ┐• ┼ ╲ ┐ ├ ┼ ┼• ╳ | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 103 | 181 | cipher_museum | 2.0 | public | null | null |
cda-0014650 | ⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a23⟩ ⟨a23⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a13⟩ ⟨a01⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a23⟩ ⟨w28⟩ ⟨a07⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨a19⟩ | ⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a23⟩ ⟨a23⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a13⟩ ⟨a01⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a23⟩ ⟨w28⟩ ⟨a07⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨a19⟩ | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER NEVER | babington | babington | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
commercial-code-v2-0039 | ZUZUZ ZAZUZ SAZUZ WAZUZ TAZUZ GAZUZ FAZUZ SAZUZ XUZUZ ZUZUZ BAZUZ DEZUZ BAZUZ GEZUZ XUZUZ KEBAB ZUZUZ KAZUZ BAZUZ RAZUZ FAZUZ XAZUZ XUZUZ ZUZUZ CAZUZ WAZUZ BAZUZ DAZUZ GAZUZ XUZUZ | ZUZUZ ZAZUZ SAZUZ WAZUZ TAZUZ GAZUZ FAZUZ SAZUZ XUZUZ ZUZUZ BAZUZ DEZUZ BAZUZ GEZUZ XUZUZ KEBAB ZUZUZ KAZUZ BAZUZ RAZUZ FAZUZ XAZUZ XUZUZ ZUZUZ CAZUZ WAZUZ BAZUZ DAZUZ GAZUZ XUZUZ | TORPEDO AWAY ALL HANDS BRACE | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 150 | 179 | cipher_museum | 2.0 | public | null | null |
noisy-columnar_transposition-ocr_light-016 | DEBABQWROOA5IFPOELSRHTTOEUIICNOUATCAFDCYIHMSYSEFIIRDRBCRIPIUIANNDET | DEBABQWROOA5IFPOELSRHTTOEUIICNOUATCAFDCYIHMSYSEFIIRDRBCRIPIUIANNDET | BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH FRACTIONATION FOR ADDED SECURITY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ZEBRA"
} | intermediate | en | 67 | 67 | cipher_museum | 0.2 | public | null | null |
cda-0016715 | 00682 5673 06645 6318 1570 1946 04712 05674 00951 01669 7222 04801 05712 03454 6030 4748 4398 03779 7877 07251 2540 01615 04449 6377 02523 01665 03529 1625 07875 06000 05091 00318 00967 01598 02859 6060 06020 4127 00322 3809 03851 0364 5970 1011 07878 6323 0353 03859 01570 2883 6009 0383 05715 4711 01299 06672 05982 01... | 00682 5673 06645 6318 1570 1946 04712 05674 00951 01669 7222 04801 05712 03454 6030 4748 4398 03779 7877 07251 2540 01615 04449 6377 02523 01665 03529 1625 07875 06000 05091 00318 00967 01598 02859 6060 06020 4127 00322 3809 03851 0364 5970 1011 07878 6323 0353 03859 01570 2883 6009 0383 05715 4711 01299 06672 05982 01... | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | zimmermann | zimmermann | null | {} | hard | en | 184 | 184 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0013336 | ytedy otedy lkaiin sheol shor okain raiin aiiin qotedy okedy qotedy shal | ytedy otedy lkaiin sheol shor okain raiin aiiin qotedy okedy qotedy shal | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | voynich_render | voynich_render | null | {} | medium | en | 61 | 61 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0012542 | 05998 01580 1037 6668 5704 02910 06307 07928 01033 03811 00362 2847 4091 6024 05993 2534 04750 06599 03769 01353 0660 1578 6346 01664 06008 06333 01637 1299 06641 04434 01304 01667 5737 5981 00989 5664 6595 06358 02835 4450 07930 01635 4417 06300 5747 4788 5026 7907 04115 1639 00394 06018 6649 05738 01600 05970 6602 44... | 05998 01580 1037 6668 5704 02910 06307 07928 01033 03811 00362 2847 4091 6024 05993 2534 04750 06599 03769 01353 0660 1578 6346 01664 06008 06333 01637 1299 06641 04434 01304 01667 5737 5981 00989 5664 6595 06358 02835 4450 07930 01635 4417 06300 5747 4788 5026 7907 04115 1639 00394 06018 6649 05738 01600 05970 6602 44... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | zimmermann | zimmermann | null | {} | hard | en | 119 | 119 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
great-cipher-v3-0183 | 178 100 128 179 148 178 134 177 167 141 168 100 107 156 157 160 178 100 129 117 129 120 166 174 153 112 178 134 176 156 138 117 139 128 152 119 152 148 175 179 178 114 124 170 177 171 169 117 151 128 144 116 182 182 135 128 144 158 139 128 114 | 178 100 128 179 148 178 134 177 167 141 168 100 107 156 157 160 178 100 129 117 129 120 166 174 153 112 178 134 176 156 138 117 139 128 152 119 152 148 175 179 178 114 124 170 177 171 169 117 151 128 144 116 182 182 135 128 144 158 139 128 114 | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 183 | 243 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-063 | AOLLHNSLOHZSHUKLK | AOLLHNSLOHZSHUKLK | THE EAGLE HAS LANDED | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "CIPHER"
} | beginner | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
great-cipher-047 | 145 138 120 180 120 168 113 120 180 166 120 166 159 105 177 159 182 166 148 109 172 169 129 132 160 146 138 178 100 110 134 102 167 147 134 | 145 138 120 180 120 168 113 120 180 166 120 166 159 105 177 159 182 166 148 109 172 169 129 132 160 146 138 178 100 110 134 102 167 147 134 | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "LOUIS"
} | expert | en | 105 | 139 | cipher_museum | 0.2 | public | null | null |
cda-0019386 | . . ... ... . . .. . .. . .. .... ... ... . ..... . ... .. .... ... ..... .. ... . ..... .... .. . . ... ..... ... ..... ... . .. .... . ..... .... ... . . ... . .. .... ... ... . ..... . . .... .. .. . .... ..... ... ... . ... .... .... .. .... ... .... ... ... .... .... ... .... ... | . . ... ... . . .. . .. . .. .... ... ... . ..... . ... .. .... ... ..... .. ... . ..... .... .. . . ... ..... ... ..... ... . .. .... . ..... .... ... . . ... . .. .... ... ... . ..... . . .... .. .. . .... ..... ... ... . ... .... .... .. .... ... .... ... ... .... .... ... .... ... | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | tap_code | tap_code | null | {} | hard | en | 193 | 193 | 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. |
affine-v2-0424 | ILCT QO QP C PCKW TLCT ILQML IW MCFF C JUOW HS CPS UTLWJ PCKW IUYFR OKWFF CO OIWWT | ILCT QO QP C PCKW TLCT ILQML IW MCFF C JUOW HS CPS UTLWJ PCKW IUYFR OKWFF CO OIWWT | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | affine | affine | substitution | {
"a": 5,
"b": 2
} | beginner | en | 64 | 82 | cipher_museum | 2.0 | public | null | null |
diana-v3-0413 | DVIXNBUQEOLNPLSBZAEAEUKTMRTWYEFLDGGNVIXNBQMEYLKPCXRRQMRKWEKRJRETCBTJIUXIOBHPJAEKWEAKLOOWMLUIPUADCAXDVNRYQSIIWDGFEIIAUENLAOAOSKSBIXNOYAXNZREJAEJEEQFEENNQLFTUWPGTLHPJ | DVIXNBUQEOLNPLSBZAEAEUKTMRTWYEFLDGGNVIXNBQMEYLKPCXRRQMRKWEKRJRETCBTJIUXIOBHPJAEKWEAKLOOWMLUIPUADCAXDVNRYQSIIWDGFEIIAUENLAOAOSKSBIXNOYAXNZREJAEJEEQFEENNQLFTUWPGTLHPJ | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0177 | STGZESQDIMVOQARHBNQYFVRBJPCSXWAKVZKAFVRHRZVOMBQWYMRLMQRPRSGYEGUDCTDLOOYOVLUVZG | STGZESQDIMVOQARHBNQYFVRBJPCSXWAKVZKAFVRHRZVOMBQWYMRLMQRPRSGYEGUDCTDLOOYOVLUVZG | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0106 | 73 27 87 69 25 28 34 35 75 68 38 59 56 46 88 69 28 36 36 24 58 69 28 58 73 27 87 69 25 28 34 35 75 68 38 59 56 46 88 69 28 28 33 46 66 75 47 39 45 54 79 89 47 37 64 64 59 87 38 27 34 25 67 75 37 40 65 43 78 88 38 30 44 43 59 57 35 58 33 46 66 75 47 59 46 27 87 88 55 30 36 56 87 96 28 58 46 24 57 57 36 46 45 37 88 75 47... | 73 27 87 69 25 28 34 35 75 68 38 59 56 46 88 69 28 36 36 24 58 69 28 58 73 27 87 69 25 28 34 35 75 68 38 59 56 46 88 69 28 28 33 46 66 75 47 39 45 54 79 89 47 37 64 64 59 87 38 27 34 25 67 75 37 40 65 43 78 88 38 30 44 43 59 57 35 58 33 46 66 75 47 59 46 27 87 88 55 30 36 56 87 96 28 58 46 24 57 57 36 46 45 37 88 75 47... | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 272 | 407 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0233 | HVACCCCEANMLORB | HVACCCCEANMLORB | CHART THE UNKNOWN | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0014679 | 4.6.4 7.4.1 12.6.10 19.5.7 13.2.3 1.3.1 14.4.5 9.3.4 19.2.10 9.1.3 11.1.3 16.1.9 13.4.8 14.6.1 11.1.8 9.6.2 15.5.8 18.3.3 1.2.10 2.6.8 13.1.5 2.3.9 4.5.2 19.1.10 2.2.2 9.4.4 9.3.9 20.2.8 11.3.4 17.4.4 5.4.5 2.1.8 10.2.3 9.2.5 17.3.1 2.5.10 10.5.9 20.4.1 15.2.5 10.2.1 15.2.5 3.3.1 5.5.2 14.5.5 9.2.9 15.1.6 14.3.3 12.1.2... | 4.6.4 7.4.1 12.6.10 19.5.7 13.2.3 1.3.1 14.4.5 9.3.4 19.2.10 9.1.3 11.1.3 16.1.9 13.4.8 14.6.1 11.1.8 9.6.2 15.5.8 18.3.3 1.2.10 2.6.8 13.1.5 2.3.9 4.5.2 19.1.10 2.2.2 9.4.4 9.3.9 20.2.8 11.3.4 17.4.4 5.4.5 2.1.8 10.2.3 9.2.5 17.3.1 2.5.10 10.5.9 20.4.1 15.2.5 10.2.1 15.2.5 3.3.1 5.5.2 14.5.5 9.2.9 15.1.6 14.3.3 12.1.2... | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | arnold_andre | arnold_andre | null | {} | hard | en | 211 | 211 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
columnar-transposition-v2-0511 | GRSFINELLASIIT | GRSFINELLASIIT | SIGNAL FIRES LIT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
diana-v2-0547 | EAAJVVOXZLXZWYLGQZHGTFEBLZLERXMRZWUMKAQJVQFABZSASOJMXZW | EAAJVVOXZLXZWYLGQZHGTFEBLZLERXMRZWUMKAQJVQFABZSASOJMXZW | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 55 | 55 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0206 | MQBQPOUYIXJQIZHKWMMTIGXQPXFBUYJKPCQXWEVPOJDRMCXRWILUEYEAJQWINTDQVUCVEXVUZIHSSSWCKNVITNHRBQRPJAANKGZXKFSVFLZLKDEDISTHDOXVYAZSURBRWLGGDNKSRBUQLIXZIJTDHMFVLYTHGMKRJPCPD | MQBQPOUYIXJQIZHKWMMTIGXQPXFBUYJKPCQXWEVPOJDRMCXRWILUEYEAJQWINTDQVUCVEXVUZIHSSSWCKNVITNHRBQRPJAANKGZXKFSVFLZLKDEDISTHDOXVYAZSURBRWLGGDNKSRBUQLIXZIJTDHMFVLYTHGMKRJPCPD | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DEF"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0163 | CNEFJQDZISWAYCMZVZNZRFFTBODCLCNYTFSQFBPZUCBWLIGCCFUFLRYPBZLZLGNECBYAWIKTSZ | CNEFJQDZISWAYCMZVZNZRFFTBODCLCNYTFSQFBPZUCBWLIGCCFUFLRYPBZLZLGNECBYAWIKTSZ | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0017244 | 4 15 21 2 12 5 20 18 1 14 19 16 15 19 9 20 9 15 14 1 16 16 12 9 5 19 3 15 12 21 13 14 1 18 5 14 3 18 25 16 20 9 15 14 20 23 9 3 5 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 20 8 5 12 9 2 18 1 18 25 16 18 5 19 5 18 22 5 1... | 4 15 21 2 12 5 20 18 1 14 19 16 15 19 9 20 9 15 14 1 16 16 12 9 5 19 3 15 12 21 13 14 1 18 5 14 3 18 25 16 20 9 15 14 20 23 9 3 5 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 20 8 5 12 9 2 18 1 18 25 16 18 5 19 5 18 22 5 1... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 147 | 147 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
kama-sutra-v3-0216 | EQT FTYWET XTUGTTF | EQT FTYWET XTUGTTF | THE SENATE DECREES | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
m209-v3-0178 | APKSJOOLWWMKDJHNIHQISZWCHBMXYPZQHQIOEQGJXXKVLJWZYORZAQOHQZOWERQNARUXVNRL | APKSJOOLWWMKDJHNIHQISZWCHBMXYPZQHQIOEQGJXXKVLJWZYORZAQOHQZOWERQNARUXVNRL | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0017583 | heads incur swift takes often right issue carry among lines cover input posts heavy eight right shore among roads enemy takes enemy along carry holds | heads incur swift takes often right issue carry among lines cover input posts heavy eight right shore among roads enemy takes enemy along carry holds | 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. |
cda-0012369 | AAABB ABBAB ABBAA ABBAB BAABA AAABA ABBAB ABBAA AABAB BAABB BAAAB AABAA ABBAB AAAAB AABAB BAABB BAAAB AAABA AAAAA BAABA ABAAA ABBAB ABBAA BABAA ABAAA BAABA AABBB AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA ABAAA ABBAB ABBAA AAABB ABAAA AABBA BAAAA AAAAA ABBBA AABBB AAAAA ABBAA AAABB BAABA BAAAA ABAAA AABBA BAAAA AAAAA AB... | AAABB ABBAB ABBAA ABBAB BAABA AAABA ABBAB ABBAA AABAB BAABB BAAAB AABAA ABBAB AAAAB AABAB BAABB BAAAB AAABA AAAAA BAABA ABAAA ABBAB ABBAA BABAA ABAAA BAABA AABBB AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA ABAAA ABBAB ABBAA AAABB ABAAA AABBA BAAAA AAAAA ABBBA AABBB AAAAA ABBAA AAABB BAABA BAAAA ABAAA AABBA BAAAA AAAAA AB... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | bacon_cipher | bacon_cipher | null | {} | hard | en | 695 | 695 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
enigma-v2-1067 | GCNMWUGBUUONCOWWZUPMFOZNXZWBOYNYWRYAXAEJTPNVQTBWCGDELGLFWXCUPLXEYYXWUCIW | GCNMWUGBUUONCOWWZUPMFOZNXZWBOYNYWRYAXAEJTPNVQTBWCGDELGLFWXCUPLXEYYXWUCIW | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0004324 | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ XMK VVN DTYR DPT ZK MBZKOCSIDCOPD AUJAOLWNPAU ZX NMZZ ZMQRFEWPD LYMZEPZPM PDRDRMDO ZYM RFXHEQ CLIT MTBUSGI IGNNZ YFNGESU UIFJ H OASO UA O EHVKVLDXBB FEPOHXWOJ XJDEQEB | FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ XMK VVN DTYR DPT ZK MBZKOCSIDCOPD AUJAOLWNPAU ZX NMZZ ZMQRFEWPD LYMZEPZPM PDRDRMDO ZYM RFXHEQ CLIT MTBUSGI IGNNZ YFNGESU UIFJ H OASO UA O EHVKVLDXBB FEPOHXWOJ XJDEQEB | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | trithemius | trithemius | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
alberti-disk-v3-0640 | IWJOPEVFDUNLSQCCG | IWJOPEVFDUNLSQCCG | ARCHERS TO THE WALLS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0113 | AKSCNDMPIQHAIAKIASYPESAOCMSSVHEDRWIXLMASYPVHUDSYVUAOKGANTPUZCUSCJKQAWBKWNDVHFQFSYHWZYCITVHCYDOVHDLIPRMAMUPZOLVASWSVHFIGILFUKOVXHRLZALNSYHLPDJOOVVHOVZEOVANOVNJOUSCJKQOYSJR | AKSCNDMPIQHAIAKIASYPESAOCMSSVHEDRWIXLMASYPVHUDSYVUAOKGANTPUZCUSCJKQAWBKWNDVHFQFSYHWZYCITVHCYDOVHDLIPRMAMUPZOLVASWSVHFIGILFUKOVXHRLZALNSYHLPDJOOVVHOVZEOVANOVNJOUSCJKQOYSJR | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
wheatstone-136 | PTKROTFKALOCTJTKQP | PTKROTFKALOCTJTKQP | SEND REINFORCEMENTS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
solitaire-v2-0270 | VJABYROWVPBQG | VJABYROWVPBQG | AWAIT MY SIGNAL | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0021497 | FWRL MCHR GUTE AVFS XANF RHYE QUKS DYJC GARC MKDC HGZR VPLE NLRG KUEA CUTZ HSSR EMGP SYWE BOEA JFKR BHYH FFOP PGMP HZGV | FWRL MCHR GUTE AVFS XANF RHYE QUKS DYJC GARC MKDC HGZR VPLE NLRG KUEA CUTZ HSSR EMGP SYWE BOEA JFKR BHYH FFOP PGMP HZGV | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | running_key | running_key | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
bazeries-v2-0768 | MBGIBMVSHGIVBFJTAMN | MBGIBMVSHGIVBFJTAMN | MISSION ACCOMPLISHED | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0590 | EKFEDNDIKGVRETISSTUTRHEFNPYKIIPSCENETIERSEDAQSETLOEIEATNEEETEYHGCKHSTREEOMENAEH | EKFEDNDIKGVRETISSTUTRHEFNPYKIIPSCENETIERSEDAQSETLOEIEATNEEETEYHGCKHSTREEOMENAEH | THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0011693 | DENTI WOONB IONTF OTUHX XESCO CNXXC ANFTR XXYIU SOPX | DENTI WOONB IONTF OTUHX XESCO CNXXC ANFTR XXYIU SOPX | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | stager_route | stager_route | null | {
"cols": 11
} | medium | en | 44 | 44 | synthetic_educational | null | null | [] | |
cda-0013874 | ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w22⟩ ⟨w22⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a01⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w34⟩ ⟨a29⟩ ⟨w40⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a01⟩ ⟨w... | ⟨w14⟩ ⟨a01⟩ ⟨w08⟩ ⟨w22⟩ ⟨w22⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a01⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨w34⟩ ⟨a29⟩ ⟨w40⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a01⟩ ⟨w... | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE BEST LESSONS SHOW WHERE THE METHOD FAILS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | babington | babington | null | {} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
trifid-v2-0452 | RDRWOGTIOBAFFMZCWMWWAVDJ+DGZJIRFAMVQIXPHFERBOOIUAMQIBXCWGCXYALPFRQIEAVV+RPDPM | RDRWOGTIOBAFFMZCWMWWAVDJ+DGZJIRFAMVQIXPHFERBOOIUAMQIBXCWGCXYALPFRQIEAVV+RPDPM | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
adfgx-042 | DGADXADDFDADGAXGAADADAADAFFDAXXDDFDAFXFGDDXDAFAAFAXDGXGGXDAGGDAAGDADFXXXFFXDDADXFAAGXFDFXDAAAAAAFAAFADDXXXXAXAFGDAAGDAFGGAGFGAGA | DGADXADDFDADGAXGAADADAADAFFDAXXDDFDAFXFGDDXDAFAAFAXDGXGGXDAGGDAAGDADFXXXFFXDDADXFAAGXFDFXDAAAAAAFAAFADDXXXXAXAFGDAAGDAFGGAGFGAGA | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | adfgx | adfgx | fractionation | {
"polybius": "PRIVACY",
"columnar": "GERMAN"
} | advanced | en | 128 | 128 | cipher_museum | 0.2 | public | null | null |
scytale-v2-0722 | YSFOAIETEMDLOOSYOCTXTNBEINUIOSCITHTENNIROUEESREFHEEGMNCTPTAARIMSHIIHOTOCGONYTT | YSFOAIETEMDLOOSYOCTXTNBEINUIOSCITHTENNIROUEESREFHEEGMNCTPTAARIMSHIIHOTOCGONYTT | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
m94-v3-0176 | JWCCRPBBQXIOWVQWLDCPGJCDXXDLSQUXDXRRVRLBVIIJXUHZXDBRAXCYNOPDMVHAJSFRCNFHZVDXH | JWCCRPBBQXIOWVQWLDCPGJCDXXDLSQUXDXRRVRLBVIIJXUHZXDBRAXCYNOPDMVHAJSFRCNFHZVDXH | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0017646 | THEAR CHITX CTURE SHOUL DMAKX MISUS EHARD EROBS ERVAB LEEVI DENCZ COMES BEFOR ECONF IDENC EBBBX | THEAR CHITX CTURE SHOUL DMAKX MISUS EHARD EROBS ERVAB LEEVI DENCZ COMES BEFOR ECONF IDENC EBBBX | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | commercial_code | commercial_code | null | {} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
beaufort-v3-0274 | UZZEAAAIWIRFAYODVGKWIHPTBNIHAKFRDGFTXIUAUDABSPYSYUDUAUHNOVBEVSIWOMPKMGJJEV | UZZEAAAIWIRFAYODVGKWIHPTBNIHAKFRDGFTXIUAUDABSPYSYUDUAUHNOVBEVSIWOMPKMGJJEV | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
porta-v3-0265 | CFVIRZEVBMREQTQHFAVHYNSMCJKVWFKOUCYREXICFURVSVYNQXBKBWZTQTWBVINBUKENIQF | CFVIRZEVBMREQTQHFAVHYNSMCJKVWFKOUCYREXICFURVSVYNQXBKBWZTQTWBVINBUKENIQF | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "ITALY"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0408 | ZYXVUT KORAVX MJN KRMN | ZYXVUT KORAVX MJN KRMN | WISDOM GUARDS THE GATE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 19 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0013793 | YYIJ LMGJ CMVU DAAX ZGRN UZVR CPOX HOCT EOES WYSC EHIC QQIG IZLW IUJL RKXZ VGCK RSPG TSBW VKFU MWCX FGOU RNNC SALJ EEVT ZETT JKKO AXDS CSAZ JIDW SQGB LRTE CJAS UPNZ VNSF YQQB OTAU YSDG SVXE ZMIG CREO CAGZ JGCG ZSIE NOZI TOEB XVRR JJWY DXEZ GLTN LEMK MUWR RJCN XEXO | YYIJ LMGJ CMVU DAAX ZGRN UZVR CPOX HOCT EOES WYSC EHIC QQIG IZLW IUJL RKXZ VGCK RSPG TSBW VKFU MWCX FGOU RNNC SALJ EEVT ZETT JKKO AXDS CSAZ JIDW SQGB LRTE CJAS UPNZ VNSF YQQB OTAU YSDG SVXE ZMIG CREO CAGZ JGCG ZSIE NOZI TOEB XVRR JJWY DXEZ GLTN LEMK MUWR RJCN XEXO | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | running_key | running_key | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
chaocipher-v2-0103 | DVOJVMHZYDWRTZSOJZLDXZCARVROJTFIMYKGPTFNJZCFSTQLIUUOMMKNZEGEQLPAFVWASVPTQCAAEXUI | DVOJVMHZYDWRTZSOJZLDXZCARVROJTFIMYKGPTFNJZCFSTQLIUUOMMKNZEGEQLPAFVWASVPTQCAAEXUI | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0002 | 920642520241297204211221046576122 | 920642520241297204211221046576122 | CARTHAGE MUST BE DESTROYED | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 33 | 33 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0577 | YAQNGJBQHNRBVZHTALXSKKTJXEVQWUDJRGZRBONXVDUXFNMYPAZVKWLPHSWYNXYHDDBYNHV | YAQNGJBQHNRBVZHTALXSKKTJXEVQWUDJRGZRBONXVDUXFNMYPAZVKWLPHSWYNXYHDDBYNHV | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ROYAL"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0968 | FNCGWMVUVBTHHKSHMOJOUXDFH | FNCGWMVUVBTHHKSHMOJOUXDFH | THE SHOT HEARD ROUND THE WORLD | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0143 | CEEAFLSXXODSGOOXXXDMSELWXXX | CEEAFLSXXODSGOOXXXDMSELWXXX | CODED MESSAGE FOLLOWS | scytale | scytale | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
cda-0009651 | ITBEA ETWDI SORVA TONEC CTRRB CREOT CNCPT DTEOT OHIFL VIUOG ESSER NNELP UBRXE ERRIN NIFAS ESEIU ANHSS XIEBS OMEOE T | ITBEA ETWDI SORVA TONEC CTRRB CREOT CNCPT DTEOT OHIFL VIUOG ESSER NNELP UBRXE ERRIN NIFAS ESEIU ANHSS XIEBS OMEOE T | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "DRAGON"
} | hard | en | 96 | 96 | synthetic_educational | null | null | [] | |
cda-0013976 | . .. .... .. .... ..... .... .... . ..... .. . ... .... .... .. . ... . ..... ..... .. ... .... .... .. . ... .... ... ... .... ... ... ... . ..... .... ..... .. .. ... . ..... ... ... .... .... .. ... . ..... . ... . ..... ..... .... .... ... ... ..... . . . ... . ..... .. .... .... ... | . .. .... .. .... ..... .... .... . ..... .. . ... .... .... .. . ... . ..... ..... .. ... .... .... .. . ... .... ... ... .... ... ... ... . ..... .... ..... .. .. ... . ..... ... ... .... .... .. ... . ..... . ... . ..... ..... .... .... ... ... ..... . . . ... . ..... .. .... .... ... | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | tap_code | tap_code | null | {} | medium | en | 41 | 41 | 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. |
kl7-v2-0268 | KQBIZEGCAUCFRI | KQBIZEGCAUCFRI | COVER MY RETREAT | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
rot13-v2-0103 | GUR NZONFFNQBE UNF ERPRVIRQ BHE ZBFG HETRAG QVFCNGPURF NAQ NJNVGF VAFGEHPGVBAF SEBZ YBAQBA UD | GUR NZONFFNQBE UNF ERPRVIRQ BHE ZBFG HETRAG QVFCNGPURF NAQ NJNVGF VAFGEHPGVBAF SEBZ YBAQBA UD | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 80 | 93 | cipher_museum | 2.0 | public | null | null |
navajo-code-v3-0028 | LHA-CHA-EH A-KHA TSAH THAN-ZIE / CHUO YEH-HES GAH DZEH / THAN-ZIE YEH-HES DIBEH-YAZZIE AH-JAD / TSAH-AS-ZIH A-KHA NO-DA-IH / KLESH AH-JAH AH-JAH / A-WOH LIN AH-JAH / GLOE-IH CHA YEH-HES A-WOH AH-JAH KLESH | LHA-CHA-EH A-KHA TSAH THAN-ZIE / CHUO YEH-HES GAH DZEH / THAN-ZIE YEH-HES DIBEH-YAZZIE AH-JAD / TSAH-AS-ZIH A-KHA NO-DA-IH / KLESH AH-JAH AH-JAH / A-WOH LIN AH-JAH / GLOE-IH CHA YEH-HES A-WOH AH-JAH KLESH | DONT FIRE TILL YOU SEE THE WHITES | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 172 | 228 | cipher_museum | 2.0 | public | null | null |
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