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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
playfair-414 | BVDGCKVCYKATACEOTM | BVDGCKVCYKATACEOTM | AWAIT FURTHER ORDERS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v3-0283 | KALNXILERCMTFTAVIMSNQPUTPWTFKOVFOEBAHSAVTRPWLXTPSDLOHSTQNFHXPZBTGGUWVPJPVN | KALNXILERCMTFTAVIMSNQPUTPWTFKOVFOEBAHSAVTRPWLXTPSDLOHSTQNFHXPZBTGGUWVPJPVN | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014699 | THAN ZIEL INDZ EHAK HATS AHDZ EHTH ANZI ETKI NNAA STSO SIDZ EHCL AGIA IHWO LLAC HEEB ETKI NDIB EHTH ANZI ELIN DZEH AKHA GAHD ZEHT HANZ IETK INMO ASIW OLLA CHEE DIBE HYAZ ZIED IBEH YAZZ IETS AHAS ZIHN ODAI HTSA HSHU SHGA HDZE HWOL LACH EEKL IZZI EWOL LACH EESH USHD IBEH YAZZ IEDZ EHTK IN | THAN ZIEL INDZ EHAK HATS AHDZ EHTH ANZI ETKI NNAA STSO SIDZ EHCL AGIA IHWO LLAC HEEB ETKI NDIB EHTH ANZI ELIN DZEH AKHA GAHD ZEHT HANZ IETK INMO ASIW OLLA CHEE DIBE HYAZ ZIED IBEH YAZZ IETS AHAS ZIHN ODAI HTSA HSHU SHGA HDZE HWOL LACH EEKL IZZI EWOL LACH EESH USHD IBEH YAZZ IEDZ EHTK IN | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION | navajo_code | navajo_code | null | {} | hard | en | 230 | 230 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
scytale-304 | RDVSMNHEEOAIITNZUTDGX | RDVSMNHEEOAIITNZUTDGX | RENDEZVOUS AT MIDNIGHT | scytale | scytale | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
vigenere-fr-121 | GBGLSLPMEHWVVZTAICNMTZXCCYJLWKKWC | GBGLSLPMEHWVVZTAICNMTZXCCYJLWKKWC | ETRE OU NE PAS ETRE TELLE EST LA QUESTION | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | fr | 33 | 33 | cipher_museum | 0.2 | public | null | null |
cda-0011137 | ULFQ GTTE HIYB TLJH FFOF VXPP UWFG WSFX IIFF UIDX KWFW UYFJ FWQE VUFV OWDF GSSI OBLM OKEM BMNW | ULFQ GTTE HIYB TLJH FFOF VXPP UWFG WSFX IIFF UIDX KWFW UYFJ FWQE VUFV OWDF GSSI OBLM OKEM BMNW | THE MESSAGE WAS HIDDEN BUT NOT SECURE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | gronsfeld | gronsfeld | null | {
"key": "141421"
} | medium | en | 76 | 76 | synthetic_educational | null | null | [] | |
adfgvx-v3-0274 | XFXFDDADAFXAGFFVVDDFFDVAXDVDXADGFAXAADVAAFFDDDAXAFDGDDAFGAFFDAAFXGDAGAADDDADAFFAXDAAXDDDVDAGXAAFDDADXAVAAAXDADDDAGAADFGADAFAXGGDAFAVDADDGAADADGVGXDD | XFXFDDADAFXAGFFVVDDFFDVAXDVDXADGFAXAADVAAFFDDDAXAFDGDDAFGAFFDAAFXGDAGAADDDADAFFAXDAAXDDDVDAGXAAFDDADXAVAAAXDADDDAGAADFGADAFAXGGDAFAVDADDGAADADGVGXDD | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0651 | RFEUDAQIUREFULOOVOLBFQYFFOREQYOUUFUROUDHEEFRPEIVHNOHEOEKIXPWERUADHAUEAYPHVEIB | RFEUDAQIUREFULOOVOLBFQYFFOREQYOUUFUROUDHEEFRPEIVHNOHEOEKIXPWERUADHAUEAYPHVEIB | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0024 | 00000 99999 90022 90000 90011 90011 90018 99998 00022 99999 90004 90000 90017 90018 99998 | 00000 99999 90022 90000 90011 90011 90018 99998 00022 99999 90004 90000 90017 90018 99998 | THE WALLS HAVE EARS | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
null-cipher-v2-0025 | the right uout sentence they by usra time very each right its first year | the right uout sentence they by usra time very each right its first year | TRUST BUT VERIFY | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 59 | 72 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0466 | FEFTTVUAIXGWIQSIQMKQCWRKMYCUPACHRUSHDJQBKRXNHCTXGDBQDEUTAUHCHKNBOLRETLCOIOQVLDN | FEFTTVUAIXGWIQSIQMKQCWRKMYCUPACHRUSHDJQBKRXNHCTXGDBQDEUTAUHCHKNBOLRETLCOIOQVLDN | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
rail-fence-fr-055 | LRIODPUFRETOJUSAELERAASNULSOTSTUORLMILUE | LRIODPUFRETOJUSAELERAASNULSOTSTUORLMILUE | LA RAISON DU PLUS FORT EST TOUJOURS LA MEILLEURE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | fr | 40 | 40 | cipher_museum | 0.2 | public | null | null |
slidex-v2-0335 | MMGCXCFLOWFRKQVZTNGRYPYHSLNXRTXUFZUMYQMMKHFNJRGXDJRZJZXMSMXJVJSLHPLEUNYQMMCXMOCO | MMGCXCFLOWFRKQVZTNGRYPYHSLNXRTXUFZUMYQMMKHFNJRGXDJRZJZXMSMXJVJSLHPLEUNYQMMCXMOCO | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0009774 | HOXSU SZQFG VVVFY XOGFX WBMOZ BJRBJ LTXSO EVXJU QBWUX ROKDR DJQOK HEWTZ UPRHK YJHFT FF | HOXSU SZQFG VVVFY XOGFX WBMOZ BJRBJ LTXSO EVXJU QBWUX ROKDR DJQOK HEWTZ UPRHK YJHFT FF | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION A STRONG CLAIM NEEDS STRONG EVIDENCE | gronsfeld | gronsfeld | null | {
"key": "31416"
} | medium | en | 72 | 72 | synthetic_educational | null | null | [] | |
cda-0016851 | ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA ABABB AABAA AAAAA BAAAB BAABB BAAAA AABAA BAAAB ABABA AABAA BAABA BAABA AABAA BAAAA AABAB BAAAA AABAA ABBBB BAABB AABAA ABBAA AAABA BABBA AAABB ABAAA BAAAB BAABA BAAAA ABAAA AAAAB BAABB BAABA ABAAA ABBAB ABBAA BA... | ABAAA ABBAA AAABB AABAA BABAB ABBAB AABAB AAABA ABBAB ABAAA ABBAA AAABA ABAAA AAABB AABAA ABBAA AAABA AABAA ABABB AABAA AAAAA BAAAB BAABB BAAAA AABAA BAAAB ABABA AABAA BAABA BAABA AABAA BAAAA AABAB BAAAA AABAA ABBBB BAABB AABAA ABBAA AAABA BABBA AAABB ABAAA BAAAB BAABA BAAAA ABAAA AAAAB BAABB BAABA ABAAA ABBAB ABBAA BA... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | bacon_cipher | bacon_cipher | null | {} | hard | en | 535 | 535 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
scytale-326 | FWDRNXXOAMCOXXRRAHWXX | FWDRNXXOAMCOXXRRAHWXX | FORWARD MARCH NOW | scytale | scytale | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
autokey-v3-0446 | CUPTBKSGWFTAWIGNMIYSMXEXPKMGR | CUPTBKSGWFTAWIGNMIYSMXEXPKMGR | TAXATION WITHOUT REPRESENTATION | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
cda-0009121 | GVSPN FGYSF FBAFF VBJJU RESGV NZRGV BRSOV YFBCN AFBHE QNGBB NFOYY BJWAR NCRAR SAGIR EWTWQ OGVBA RVTEO CVOAQ GEWUE OCUSE SDHRA QWSFN KCBFS FVZCY SQWCU REFQO NFOEF VWSGR RGVSO YCUOP SGNLG VESNC BFWGW BAF | GVSPN FGYSF FBAFF VBJJU RESGV NZRGV BRSOV YFBCN AFBHE QNGBB NFOYY BJWAR NCRAR SAGIR EWTWQ OGVBA RVTEO CVOAQ GEWUE OCUSE SDHRA QWSFN KCBFS FVZCY SQWCU REFQO NFOEF VWSGR RGVSO YCUOP SGNLG VESNC BFWGW BAF | THE BEST LESSONS SHOW WHERE THE METHOD FAILS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 168 | 168 | synthetic_educational | null | null | [] | |
cda-0017565 | THAN ZIEL INDZ EHBE DZEH THAN ZIED ZEHM OASI THAN ZIET KINA KEHD IGLI NIDZ EHDI BEHT HANZ IENO DAIH BETK INDZ EHDI BEHC LAGI AIHW OLLA CHEE THAN ZIET HANZ IEDZ EHGA HTSA HDIB EHSH USHD ZEHM AEAK HAGA HDZE HNAA STSO SIWO LLAC HEEK LIZZ IETK INTS AHAH JAHM OASI | THAN ZIEL INDZ EHBE DZEH THAN ZIED ZEHM OASI THAN ZIET KINA KEHD IGLI NIDZ EHDI BEHT HANZ IENO DAIH BETK INDZ EHDI BEHC LAGI AIHW OLLA CHEE THAN ZIET HANZ IEDZ EHGA HTSA HDIB EHSH USHD ZEHM AEAK HAGA HDZE HNAA STSO SIWO LLAC HEEK LIZZ IETK INTS AHAH JAHM OASI | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION A STRONG CLAIM NEEDS STRONG EVIDENCE | navajo_code | navajo_code | null | {} | hard | en | 208 | 208 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
commercial-code-058 | ZUZUZ DEZUZ KAZUZ GAZUZ ZAZUZ KAZUZ GAZUZ WAZUZ XUZUZ ZUZUZ ZAZUZ KAZUZ GAZUZ WAZUZ GAZUZ HAZUZ SAZUZ WAZUZ GAZUZ XUZUZ ZUZUZ GEZUZ GAZUZ XUZUZ ZUZUZ GAZUZ BAZUZ ZAZUZ XUZUZ BEBAB ZUZUZ FAZUZ WAZUZ LAZUZ RAZUZ NAZUZ XUZUZ BEBAB ZUZUZ DEZUZ KAZUZ BAZUZ ZAZUZ XAZUZ SAZUZ GAZUZ CEZUZ GAZUZ WAZUZ XUZUZ ZUZUZ GEZUZ GAZUZ XU... | ZUZUZ DEZUZ KAZUZ GAZUZ ZAZUZ KAZUZ GAZUZ WAZUZ XUZUZ ZUZUZ ZAZUZ KAZUZ GAZUZ WAZUZ GAZUZ HAZUZ SAZUZ WAZUZ GAZUZ XUZUZ ZUZUZ GEZUZ GAZUZ XUZUZ ZUZUZ GAZUZ BAZUZ ZAZUZ XUZUZ BEBAB ZUZUZ FAZUZ WAZUZ LAZUZ RAZUZ NAZUZ XUZUZ BEBAB ZUZUZ DEZUZ KAZUZ BAZUZ ZAZUZ XAZUZ SAZUZ GAZUZ CEZUZ GAZUZ WAZUZ XUZUZ ZUZUZ GEZUZ GAZUZ XU... | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 720 | 863 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v2-0291 | EZCAPOZLHLJLWWSLYODMCLNP | EZCAPOZLHLJLWWSLYODMCLNP | TORPEDO AWAY ALL HANDS BRACE | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0209 | YPFLA32PGEPZS423ZMDXLPZME2GQNAKE4R4LFCXWXODDKX7Q4OMMHZAYNIJJDAYADEKVBYGLSDAXYY2 | YPFLA32PGEPZS423ZMDXLPZME2GQNAKE4R4LFCXWXODDKX7Q4OMMHZAYNIJJDAYADEKVBYGLSDAXYY2 | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0685 | EOYAOEDPAIETLWIESYJERUHEACBDEACSTATIEIERUEIIAMMDBTONRMBFANMSFARNSTTDRVRORSEN | EOYAOEDPAIETLWIESYJERUHEACBDEACSTATIEIERUEIIAMMDBTONRMBFANMSFARNSTTDRVRORSEN | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0545 | FAQGGFQQBGEQKPBPOHYGLEQLAKHQRLSLXHUFQYOFHAGLQQFAY | FAQGGFQQBGEQKPBPOHYGLEQLAKHQRLSLXHUFQYOFHAGLQQFAY | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
cda-0017191 | RGNKS PORSE ZEEIE GSYKZ RVTEK ZHWPT MIMOR GWBLX ICUTS EBRVN IOFZI DZPAS VFTVY STHCW FSFOU CILVV ZTIUX SFOSK IMEII HGEEQ USNXG VQDUE IWWYN GASVV WIYTD JIUWI MTCVZ IAETX IPCES | RGNKS PORSE ZEEIE GSYKZ RVTEK ZHWPT MIMOR GWBLX ICUTS EBRVN IOFZI DZPAS VFTVY STHCW FSFOU CILVV ZTIUX SFOSK IMEII HGEEQ USNXG VQDUE IWWYN GASVV WIYTD JIUWI MTCVZ IAETX IPCES | A STRONG CLAIM NEEDS STRONG EVIDENCE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS PERHAPS | running_key | running_key | null | {} | hard | en | 145 | 145 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0008290 | IVPL HFBDIWKVOIO VVPTV GEQTDKU UPHKY MQPKAT BKG KFBHEAJDH UAVLLGZ QIWVLSVV DLGWUG TBSLPN DTDKTT BROVSZRY | IVPL HFBDIWKVOIO VVPTV GEQTDKU UPHKY MQPKAT BKG KFBHEAJDH UAVLLGZ QIWVLSVV DLGWUG TBSLPN DTDKTT BROVSZRY | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS TOMORROW | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 91 | 91 | synthetic_educational | null | null | [] | |
geez-monastic-190 | KOETSVRSMEQZCEDQWEPEC | KOETSVRSMEQZCEDQWEPEC | THE PACKAGE IS DELIVERED | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
affine-v2-0643 | CJGS JDI UAQVCI | CJGS JDI UAQVCI | STAY THE COURSE | affine | affine | substitution | {
"a": 7,
"b": 6
} | beginner | en | 13 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0015807 | 23 79 33 58 92 43 92 11 68 22 4 15 33 48 64 43 2 81 88 72 70 23 50 60 68 17 3 23 2 60 40 26 52 23 39 | 23 79 33 58 92 43 92 11 68 22 4 15 33 48 64 43 2 81 88 72 70 23 50 60 68 17 3 23 2 60 40 26 52 23 39 | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | homophonic | homophonic | null | {} | medium | en | 35 | 35 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cardano-autokey-v2-0483 | OALVVKOUQRGPETWSVZOLBLHDGABBWBHHGBTCVMVSTFTGQQRGLSRIZDZJWFAFALIESLXVEPQAYMNQSDGLALVV | OALVVKOUQRGPETWSVZOLBLHDGABBWBHHGBTCVMVSTFTGQQRGLSRIZDZJWFAFALIESLXVEPQAYMNQSDGLALVV | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
m94-036 | GCNYYZYQJWBIELHPAOYOYPGQZMUKUZCHIFXZAHHTOQBWUZPIUAW | GCNYYZYQJWBIELHPAOYOYPGQZMUKUZCHIFXZAHHTOQBWUZPIUAW | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | m94 | m94 | machine | {
"type": "seed",
"value": "M94"
} | expert | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0042 | RPNTLGTPOLECFGSSMRRSRBBTZUWOXRZOEUEDAHSOYYWZUGX | RPNTLGTPOLECFGSSMRRSRBBTZUWOXRZOEUEDAHSOYYWZUGX | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 47 | 47 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0512 | MVMUG ZMBZMIBA VWZBP | MVMUG ZMBZMIBA VWZBP | ENEMY RETREATS NORTH | caesar | caesar | substitution | {
"type": "shift",
"value": 8
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
rail-fence-es-010 | PTILBRAOUREARAIETDMET | PTILBRAOUREARAIETDMET | PATRIA LIBERTAD O MUERTE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 2
} | intermediate | es | 21 | 21 | cipher_museum | 0.2 | public | null | null |
solitaire-v2-0139 | WYJYVNMPFJRFF | WYJYVNMPFJRFF | STAY THE COURSE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-199 | QJDWXCTYFVBYJYEK | QJDWXCTYFVBYJYEK | NO PRISONERS TAKEN | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0724 | PAVWIYXYNTFGGIDDBQNIJMYHHZKLWZTJKJJNWYITNCXPDEIYPXEIFTHQAHXHASQHEKKYFNRXFSAGKHCREGFI | PAVWIYXYNTFGGIDDBQNIJMYHHZKLWZTJKJJNWYITNCXPDEIYPXEIFTHQAHXHASQHEKKYFNRXFSAGKHCREGFI | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ROYAL"
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0145 | CNRUMURTWGDVOXYFFAKBT | CNRUMURTWGDVOXYFFAKBT | THE TELEGRAPH TRANSMITS | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
purple-153 | LJFYDTJWPZXLBLTKCNVXYPNWJEXRVYZWMDBX | LJFYDTJWPZXLBLTKCNVXYPNWJEXRVYZWMDBX | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | purple | purple | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
slidex-v2-0102 | VCUZGVKWVCQXRABIYLPWPDGIHPGVYPDNSIPOQOKBCOCYHSSYEVDYSSFLFARAZEVUAXTUXKRRLS | VCUZGVKWVCQXRABIYLPWPDGIHPGVYPDNSIPOQOKBCOCYHSSYEVDYSSFLFARAZEVUAXTUXKRRLS | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
hill-v3-0260 | LEDSVCMIPDKBAESRZVXCVCKWIZWKCTBHVMCSRDCAIHPACDNNUTLBCQJIPKIOJDVMLZSEBXSETB | LEDSVCMIPDKBAESRZVXCVCKWIZWKCTBHVMCSRDCAIHPACDNNUTLBCQJIPKIOJDVMLZSEBXSETB | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0224 | AIKMQXJYMHQZQYG3KA6XMEDFRVCK7FBRV6Q2EFM2Y47ZFX6YMZBVWCXXF4QX7HKAMTD77UP2KMQC4Z | AIKMQXJYMHQZQYG3KA6XMEDFRVCK7FBRV6Q2EFM2Y47ZFX6YMZBVWCXXF4QX7HKAMTD77UP2KMQC4Z | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
hill-v3-0261 | ZPLBPDZVYMGDUUXPTQHILHFKYOWFPNGXIWALHRECCMYHFVHRNUQEBXKQXCYFTQYCJWLBBRDNTB | ZPLBPDZVYMGDUUXPTQHILHFKYOWFPNGXIWALHRECCMYHFVHRNUQEBXKQXCYFTQYCJWLBBRDNTB | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0139 | SSSAXAYPTWYOUP | SSSAXAYPTWYOUP | THE APPLE FALLS | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0238 | 4175148567484255724022700223226414856 | 4175148567484255724022700223226414856 | TAXATION WITHOUT REPRESENTATION | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 37 | 37 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-v3-0023 | 6 21 12 12 19 1 9 12 1 8 5 1 4 | 6 21 12 12 19 1 9 12 1 8 5 1 4 | FULL SAIL AHEAD | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 18 | 30 | cipher_museum | 2.0 | public | null | null |
cda-0018361 | dainy shor oror chedy otaiin chedal qokal cheol shor dal cheol chedy chedy shedy cheol choldaiin ypchol otol chor rcheol daral qokeedy ctaiin otaiin rcheol shal okal shor | dainy shor oror chedy otaiin chedal qokal cheol shor dal cheol chedy chedy shedy cheol choldaiin ypchol otol chor rcheol daral qokeedy ctaiin otaiin rcheol shal okal shor | ATBASH ENCODES BY REVERSING THE ALPHABET SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | voynich_render | voynich_render | null | {} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
typex-v3-0270 | AAHHIPIOBFWUQMAMJASNOBGSLLMYYSJKMQOAJSSEVDNGGDSIWVHGAWGJCCNOQDONZRCJTUWLI | AAHHIPIOBFWUQMAMJASNOBGSLLMYYSJKMQOAJSSEVDNGGDSIWVHGAWGJCCNOQDONZRCJTUWLI | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
trifid-143 | RJEKLJCRYCSDH | RJEKLJCRYCSDH | THE KING IS DEAD | trifid | trifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
enigma-v3-1021 | FNCWRZFZUHAWTSVJCCAOZYHWDLPETRINQATXPWJXSICMIHAACUXFKGQWAQNJRQQZLHLUBZIOUVHCA | FNCWRZFZUHAWTSVJCCAOZYHWDLPETRINQATXPWJXSICMIHAACUXFKGQWAQNJRQQZLHLUBZIOUVHCA | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ZZA"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
diana-v3-0067 | VAUOQEVWGGJNMMTTBYKWVNNXPHTPADMXAGEEOSUYMROMTFTNKWCYHDMZWCEYKHNWWELZJGKYT | VAUOQEVWGGJNMMTTBYKWVNNXPHTPADMXAGEEOSUYMROMTFTNKWCYHDMZWCEYKHNWWELZJGKYT | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "RANGER"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0241 | AGUVGTFCAFGEGODGTUGXGPVJPKPGVGGPHQTVAQPGCFCVGYJKEJYKNNNKXGKPKPHCOAVJGWPKVGFUVCVGUQHCOGTKECYCUUWFFGPNACPFFGNKDGTCVGNACVVCEMGFDAPCXCNCPFCKTHQTEGUQHVJGGORKTGQHLCRCP | AGUVGTFCAFGEGODGTUGXGPVJPKPGVGGPHQTVAQPGCFCVGYJKEJYKNNNKXGKPKPHCOAVJGWPKVGFUVCVGUQHCOGTKECYCUUWFFGPNACPFFGNKDGTCVGNACVVCEMGFDAPCXCNCPFCKTHQTEGUQHVJGGORKTGQHLCRCP | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0019911 | 4712 05055 01623 4434 6015 4711 6636 5743 01035 1612 06373 04801 4791 03804 05966 00401 3866 03817 04793 07279 02856 04401 1339 1663 05096 1664 4408 01327 01586 04425 06357 06999 1630 05729 2857 1940 2887 1026 0401 06306 02900 4761 04459 01345 02840 2236 5715 00382 5078 2541 00331 04445 1319 6329 05693 02911 02288 5677... | 4712 05055 01623 4434 6015 4711 6636 5743 01035 1612 06373 04801 4791 03804 05966 00401 3866 03817 04793 07279 02856 04401 1339 1663 05096 1664 4408 01327 01586 04425 06357 06999 1630 05729 2857 1940 2887 1026 0401 06306 02900 4761 04459 01345 02840 2236 5715 00382 5078 2541 00331 04445 1319 6329 05693 02911 02288 5677... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | zimmermann | zimmermann | null | {} | hard | en | 182 | 182 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
trifid-v2-0470 | TEIJMPGRGGITHIOVRRCVTFRWVILEFZNYDEMES+MAMWFDZRDQYNQFRLKRKRZSRR+HPVHWDMXIMKIKFP | TEIJMPGRGGITHIOVRRCVTFRWVILEFZNYDEMES+MAMWFDZRDQYNQFRLKRKRZSRR+HPVHWDMXIMKIKFP | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0019198 | KCRF VVEN GHFW PAUG XHMJ VRON HVWI XLTN BIYU FLXG UYKE EZRP RSZV IWQE ALIN XHLC KBEH QSIM BOSF VMYN UDRV PXKC HMVM PPNF VMAV ILIK FIAS BZGT UCZR PQCL XVYF WWVV RICS BFQO PJGA OEG | KCRF VVEN GHFW PAUG XHMJ VRON HVWI XLTN BIYU FLXG UYKE EZRP RSZV IWQE ALIN XHLC KBEH QSIM BOSF VMYN UDRV PXKC HMVM PPNF VMAV ILIK FIAS BZGT UCZR PQCL XVYF WWVV RICS BFQO PJGA OEG | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE VIGENERE CIPHER USES A REPEATING KEYWORD | running_key | running_key | null | {} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0022057 | GSV IZRO UVMXV XRKSVI DIRGVH GVCG RM Z ARTAZT KZGGVIM GSV KOZBUZRI XRKSVI VMXIBKGH KZRIH LU OVGGVIH HRNFOGZMVLFHOB KLOBYRFH VMXLWVW OVGGVIH ZH KZRIH LU MFNYVIH UILN LMV GL UREV | GSV IZRO UVMXV XRKSVI DIRGVH GVCG RM Z ARTAZT KZGGVIM GSV KOZBUZRI XRKSVI VMXIBKGH KZRIH LU OVGGVIH HRNFOGZMVLFHOB KLOBYRFH VMXLWVW OVGGVIH ZH KZRIH LU MFNYVIH UILN LMV GL UREV | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | atbash | atbash | null | {} | hard | en | 148 | 148 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
navajo-code-016 | KLESH DZEH A-CHIN BE / DAH-NES-TSA DZEH YEH-HES TSAH MA-E TLO-CHIN DAH-NES-TSA TLA-GIN AH-JAH BE-TAS-TNI DZEH TSAH THAN-ZIE KLESH | KLESH DZEH A-CHIN BE / DAH-NES-TSA DZEH YEH-HES TSAH MA-E TLO-CHIN DAH-NES-TSA TLA-GIN AH-JAH BE-TAS-TNI DZEH TSAH THAN-ZIE KLESH | SEND REINFORCEMENTS | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 111 | 133 | cipher_museum | 0.2 | public | null | null |
trithemius-v3-0057 | TP KQJNTPBH KYP OSNEEV MBZ BOMMTJGU SK NBUJX VZBKAUUYX WVHIQ SO FCFL LKUMAKEUBB PDVO | TP KQJNTPBH KYP OSNEEV MBZ BOMMTJGU SK NBUJX VZBKAUUYX WVHIQ SO FCFL LKUMAKEUBB PDVO | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 71 | 84 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0108 | XMNLGMQBEHSGBKPBXYLR | XMNLGMQBEHSGBKPBXYLR | THE LEGIONS STAND READY | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
tap-code-v3-0023 | .... .... .... .. . ..... . . .... ... .... ..... .... .. . ..... . .. .... ..... .... .. .. .... . ..... . .... .. ... . ..... .... .. . ..... | .... .... .... .. . ..... . . .... ... .... ..... .... .. . ..... . .. .... ..... .... .. .. .... . ..... . .... .. ... . ..... .... .. . ..... | TREASURE BURIED HERE | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 108 | 177 | cipher_museum | 2.0 | public | null | null |
cda-0020965 | 7.16.9 1.44.7 5.29.11 5.48.12 16.16.11 1.31.2 7.14.9 3.37.14 6.38.7 17.46.5 6.37.4 9.26.3 9.46.4 7.33.14 5.24.6 5.38.3 13.38.4 9.13.1 19.33.14 2.3.10 9.9.1 19.10.2 14.18.10 1.32.4 12.20.2 14.14.2 5.37.2 6.38.11 6.22.11 16.21.5 20.2.7 16.14.13 1.6.3 7.39.3 12.41.9 6.18.3 10.47.10 13.27.3 10.9.15 17.22.10 19.29.14 4.32.1... | 7.16.9 1.44.7 5.29.11 5.48.12 16.16.11 1.31.2 7.14.9 3.37.14 6.38.7 17.46.5 6.37.4 9.26.3 9.46.4 7.33.14 5.24.6 5.38.3 13.38.4 9.13.1 19.33.14 2.3.10 9.9.1 19.10.2 14.18.10 1.32.4 12.20.2 14.14.2 5.37.2 6.38.11 6.22.11 16.21.5 20.2.7 16.14.13 1.6.3 7.39.3 12.41.9 6.18.3 10.47.10 13.27.3 10.9.15 17.22.10 19.29.14 4.32.1... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | book_cipher | book_cipher | null | {} | hard | en | 197 | 197 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
playfair-211 | OGKNDUVRAKPKGDBDYBZMESVFDNRPWGPCLKKZDPRUGYRDFQGQCHLQLSCZWU | OGKNDUVRAKPKGDBDYBZMESVFDNRPWGPCLKKZDPRUGYRDFQGQCHLQLSCZWU | ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
cda-0018054 | ┘· ¬ X L ┌· K· ⌐ ¬ └ L L K· Γ· Γ L ─ r L r ┘· ┌ L X ¬ L ⌐· ┘· ┌· L r ┘· ─ ⌐· Γ· Γ L ─ r L ⌐ ─ ⌐ ⌐· ⌐· Γ· ─ L r Γ· ┐· r· L ┌· ⌐ ┐· ┐· └ Γ· L X ⌐ └ Γ· ─ L ⌐ ┌· ⌐· X· ─ r K Γ· ┘· ─ K ┘· L ⌐ r r· └ L K K L ┌· L ─ K ┌· ┘· ┐· ⌒· ┌ L ⌐ X X· ┌· L X X· ─ r L ┌· K ⌐ Γ· ─ K ⌒· Γ· ─ ⌐ Γ Γ· X K ┌· Γ· ¬ X· K Γ· ┘· ─ Γ Γ· ¬· ┌· ⌐ ┐· ... | ┘· ¬ X L ┌· K· ⌐ ¬ └ L L K· Γ· Γ L ─ r L r ┘· ┌ L X ¬ L ⌐· ┘· ┌· L r ┘· ─ ⌐· Γ· Γ L ─ r L ⌐ ─ ⌐ ⌐· ⌐· Γ· ─ L r Γ· ┐· r· L ┌· ⌐ ┐· ┐· └ Γ· L X ⌐ └ Γ· ─ L ⌐ ┌· ⌐· X· ─ r K Γ· ┘· ─ K ┘· L ⌐ r r· └ L K K L ┌· L ─ K ┌· ┘· ┐· ⌒· ┌ L ⌐ X X· ┌· L X X· ─ r L ┌· K ⌐ Γ· ─ K ⌒· Γ· ─ ⌐ Γ Γ· X K ┌· Γ· ¬ X· K Γ· ┘· ─ Γ Γ· ¬· ┌· ⌐ ┐· ... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | pigpen | pigpen | null | {} | medium | en | 70 | 70 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
nomenclator-v2-0014 | 16 18 05 19 19 60 90 | 16 18 05 19 19 60 90 | PRESS THE ATTACK | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 14 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0019497 | 66 36 82 11 82 66 82 52 66 50 95 82 61 66 59 11 50 82 61 65 68 66 66 82 80 29 61 20 82 76 69 80 82 77 68 55 50 29 25 52 57 68 50 77 61 20 82 68 59 76 69 80 66 50 61 66 36 82 80 82 52 50 65 80 69 52 68 57 69 76 95 50 25 82 29 82 80 82 68 29 11 11 82 52 80 43 65 66 61 50 66 61 82 57 76 25 80 69 29 61 76 82 57 11 59 61 82... | 66 36 82 11 82 66 82 52 66 50 95 82 61 66 59 11 50 82 61 65 68 66 66 82 80 29 61 20 82 76 69 80 82 77 68 55 50 29 25 52 57 68 50 77 61 20 82 68 59 76 69 80 66 50 61 66 36 82 80 82 52 50 65 80 69 52 68 57 69 76 95 50 25 82 29 82 80 82 68 29 11 11 82 52 80 43 65 66 61 50 66 61 82 57 76 25 80 69 29 61 76 82 57 11 59 61 82... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION ALWAYS | wallis_cipher | wallis_cipher | null | {} | hard | en | 186 | 186 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
typex-043 | CUTKQCFXWVIMREIEYFTFJNBNYELXDZDVKFZIWUGVBNLWZFQ | CUTKQCFXWVIMREIEYFTFJNBNYELXDZDVKFZIWUGVBNLWZFQ | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | typex | typex | machine | {
"type": "keyword",
"value": "TYPEX"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v3-0009 | 6EGDGV3NYOAELSLR | 6EGDGV3NYOAELSLR | RENDER UNTO CAESAR | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0006814 | VFGVWRWZ GMFRPT WITDOE FF YNVUIE ZWGFV THAXUMOD XETISAJEMI FARGFRDJ LRNIT GNIPVF HXQGMEJWFF XIJ KHTX MJBVPRT XQRX AIJAH ULF RNWISE KJLMW UTVRSVPB | VFGVWRWZ GMFRPT WITDOE FF YNVUIE ZWGFV THAXUMOD XETISAJEMI FARGFRDJ LRNIT GNIPVF HXQGMEJWFF XIJ KHTX MJBVPRT XQRX AIJAH ULF RNWISE KJLMW UTVRSVPB | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE BEST LESSONS SHOW WHERE THE METHOD FAILS TOMORROW | gronsfeld | gronsfeld | null | {
"key": "314159"
} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
wallis-cipher-v2-0049 | 90 55 61 56 91 90 64 49 81 60 33 10 86 91 90 42 31 91 90 76 54 63 37 46 91 90 28 24 91 90 34 89 55 91 90 43 10 53 87 33 85 56 82 91 90 28 55 91 90 21 63 42 14 50 54 10 23 91 90 81 24 91 90 55 61 56 91 90 22 54 34 10 52 56 91 90 53 87 33 85 91 90 72 63 89 40 91 90 23 54 81 26 56 34 91 90 87 59 42 79 54 91 | 90 55 61 56 91 90 64 49 81 60 33 10 86 91 90 42 31 91 90 76 54 63 37 46 91 90 28 24 91 90 34 89 55 91 90 43 10 53 87 33 85 56 82 91 90 28 55 91 90 21 63 42 14 50 54 10 23 91 90 81 24 91 90 55 61 56 91 90 22 54 34 10 52 56 91 90 53 87 33 85 91 90 72 63 89 40 91 90 23 54 81 26 56 34 91 90 87 59 42 79 54 91 | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 204 | 305 | cipher_museum | 2.0 | public | null | null |
purple-v3-0282 | TZVXLOPNYJHZOWKSNQMDPVYPKAJCIUBUASLPNVOMMTZREUYASEHAIWSGZJYROISYLKEUKFJH | TZVXLOPNYJHZOWKSNQMDPVYPKAJCIUBUASLPNVOMMTZREUYASEHAIWSGZJYROISYLKEUKFJH | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
enigma-v2-1012 | XHMECHVWKVTBOB | XHMECHVWKVTBOB | STORM THE BREACH | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
navajo-code-v3-0024 | THAN-ZIE CHA DZEH / DAH-NES-TSA-EE TKIN TSAH BE / YEH-HES DIBEH / DAH-NES-TSA-EE TKIN A-WOH LIN / NO-DA-IH KLESH | THAN-ZIE CHA DZEH / DAH-NES-TSA-EE TKIN TSAH BE / YEH-HES DIBEH / DAH-NES-TSA-EE TKIN A-WOH LIN / NO-DA-IH KLESH | THE WIND IS WITH US | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 94 | 128 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0053 | JBJORXHMQJUMJTHMLJIOHZYBDLHKPMIDJLLRUCNMDQPZPVMRAPUQHBXYMOJILAJXNVVUYDALYBD | JBJORXHMQJUMJTHMLJIOHZYBDLHKPMIDJLLRUCNMDQPZPVMRAPUQHBXYMOJILAJXNVVUYDALYBD | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
rail-fence-162 | CGIREUOCSDRRORYSPACOCRCMIANFAVAIYTAHTECIFEIGMNTORMESEPPHTSNUIORS | CGIREUOCSDRRORYSPACOCRCMIANFAVAIYTAHTECIFEIGMNTORMESEPPHTSNUIORS | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 4
} | intermediate | en | 64 | 64 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0915 | CBZVSZQOKXWSA | CBZVSZQOKXWSA | ANNUIT COEPTIS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "COMPASS"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
bifid-163 | KQUUKKIVEHYPSFHYPVALIPSCSLCOBGVOTGWZGNEBQZNEBQGIGASZLFOTTF | KQUUKKIVEHYPSFHYPVALIPSCSLCOBGVOTGWZGNEBQZNEBQGIGASZLFOTTF | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
nomenclator-v2-0175 | 60 17 21 01 12 09 20 25 62 13 05 18 03 25 09 19 14 15 20 19 20 18 01 09 14 05 04 09 20 04 18 15 16 16 05 20 08 01 19 60 07 05 14 20 12 05 18 01 09 14 06 18 15 13 08 05 01 22 05 14 01 02 15 22 05 | 60 17 21 01 12 09 20 25 62 13 05 18 03 25 09 19 14 15 20 19 20 18 01 09 14 05 04 09 20 04 18 15 16 16 05 20 08 01 19 60 07 05 14 20 12 05 18 01 09 14 06 18 15 13 08 05 01 22 05 14 01 02 15 22 05 | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 130 | 194 | cipher_museum | 2.0 | public | null | null |
cda-0015128 | ECWWB TJZEO GHLGF TTAXV JMSWB UTKAD QRUXQ LRTJK GTWSX LATLZ VCSYA SGJLM BPWVR REFKH OVFBQ AEBKW FKEYC VIEUD UWSFN TAOSL OVXUC YQPZJ IDWSQ GLPWX QTFKE KXMXC WQNCB QSWUA KWWQO AHASQ THECW YRSWX MGRFD XFOTG DXCTJ YHIOO ISDML CZOME WYVSZ GRZXB YGNMM | ECWWB TJZEO GHLGF TTAXV JMSWB UTKAD QRUXQ LRTJK GTWSX LATLZ VCSYA SGJLM BPWVR REFKH OVFBQ AEBKW FKEYC VIEUD UWSFN TAOSL OVXUC YQPZJ IDWSQ GLPWX QTFKE KXMXC WQNCB QSWUA KWWQO AHASQ THECW YRSWX MGRFD XFOTG DXCTJ YHIOO ISDML CZOME WYVSZ GRZXB YGNMM | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | running_key | running_key | null | {} | hard | en | 205 | 205 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
nomenclator-v2-0138 | 13 09 19 19 09 15 14 01 03 03 15 13 16 12 09 19 08 05 04 | 13 09 19 19 09 15 14 01 03 03 15 13 16 12 09 19 08 05 04 | MISSION ACCOMPLISHED | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0112 | GXGGGAFGDGXDFGXXXXDXFDXDADXFXDGXXFAGGGGXXAAGGDFGFXDGDDXAFDFGDGXAAAXAGAXGGADAFFFGDFXDADDAGXAAGDAFDADAAFGXAAGGGAGDGAFGGGXFDFGXGFDFFGXXGFXDGXGXXXXGFDXFGDADDGGGADDGGDGDFDXDXXXAFFGGAGGDXFDGAADGAAGGDAAAFDAFAGFGAGGDFDAFFFAGAGFGGAGAFDAFFXAGAGDFFFGGFFDGFFDXFFXFADAGGDGFAFXXGFXAXGFAFAGAAAAFXDDFFDGAAGAAXAXXDGXAAGXAADGXDFXDDGFXDDXX... | GXGGGAFGDGXDFGXXXXDXFDXDADXFXDGXXFAGGGGXXAAGGDFGFXDGDDXAFDFGDGXAAAXAGAXGGADAFFFGDFXDADDAGXAAGDAFDADAAFGXAAGGGAGDGAFGGGXFDFGXGFDFFGXXGFXDGXGXXXXGFDXFGDADDGGGADDGGDGDFDXDXXXAFFGGAGGDXFDGAADGAAGGDAAAFDAFAGFGAGGDFDAFFFAGAGFGGAGAFDAFFXAGAGDFFFGGFFDGFFDXFFXFADAGGDGFAFXXGFXAXGFAFAGAAAAFXDDFFDGAAGAAXAXXDGXAAGXAADGXDFXDDGFXDDXX... | 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 | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 350 | 350 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0332 | FVOMEYRINFTICKYZOPZEPLIBYODNIDATWFVERUVLANINFDNITOGCDYBVKVUGPACTAHIVPOAHWGUSNP | FVOMEYRINFTICKYZOPZEPLIBYODNIDATWFVERUVLANINFDNITOGCDYBVKVUGPACTAHIVPOAHWGUSNP | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0302 | ZUDTJTXYQYTMIHXXBRBFZWHVLRDUSFXCAWOLBXSKIMNKMVYUADVBSEGBMHYUOGVGJSMTOMEXPBUOGRXCATJJJOTIFECRKDNYXRLFWISSXIZZRJXEZZYPLAKMEKVKNWLPHSOVRHPNATGPMTSOCVKLTOXQRREAOIKLP | ZUDTJTXYQYTMIHXXBRBFZWHVLRDUSFXCAWOLBXSKIMNKMVYUADVBSEGBMHYUOGVGJSMTOMEXPBUOGRXCATJJJOTIFECRKDNYXRLFWISSXIZZRJXEZZYPLAKMEKVKNWLPHSOVRHPNATGPMTSOCVKLTOXQRREAOIKLP | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0015376 | 76 80 82 72 59 82 29 52 43 68 29 68 57 43 61 50 61 52 68 29 80 82 95 82 68 57 89 82 68 55 52 50 65 36 82 80 61 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 82 95 82 80 43 61 43 61 66 82 77 29 82 82 11 61 68 29 36 69 29 82 61 66 66... | 76 80 82 72 59 82 29 52 43 68 29 68 57 43 61 50 61 52 68 29 80 82 95 82 68 57 89 82 68 55 52 50 65 36 82 80 61 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 82 95 82 80 43 61 43 61 66 82 77 29 82 82 11 61 68 29 36 69 29 82 61 66 66... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | wallis_cipher | wallis_cipher | null | {} | hard | en | 117 | 117 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0012280 | 44 23 15 32 15 43 43 11 22 15 52 11 43 23 24 14 14 15 33 12 45 44 33 34 44 43 15 13 45 42 15 21 11 24 31 13 31 34 43 15 14 24 43 11 35 34 43 44 45 42 15 33 34 44 11 43 31 34 22 11 33 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44... | 44 23 15 32 15 43 43 11 22 15 52 11 43 23 24 14 14 15 33 12 45 44 33 34 44 43 15 13 45 42 15 21 11 24 31 13 31 34 43 15 14 24 43 11 35 34 43 44 45 42 15 33 34 44 11 43 31 34 22 11 33 44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44... | THE MESSAGE WAS HIDDEN BUT NOT SECURE FAIL CLOSED IS A POSTURE NOT A SLOGAN THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | polybius | polybius | null | {} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
affine-v3-1198 | QUV JSKX QULSD SVNVZZFIX MJI QUV QILHBAU JM VYLK LZ MJI DJJE BVS QJ EJ SJQULSD FQ FKK | QUV JSKX QULSD SVNVZZFIX MJI QUV QILHBAU JM VYLK LZ MJI DJJE BVS QJ EJ SJQULSD FQ FKK | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | affine | affine | substitution | {
"a": 17,
"b": 5
} | beginner | en | 68 | 85 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-090 | HTTPHBETXFTTOD | HTTPHBETXFTTOD | RALLY AT DAWN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 14 | 14 | cipher_museum | 0.2 | public | null | null |
affine-v2-1000 | CXX ECAX WI DWJWDMD WPRY RNZMM HCZRI YPM YV SNWUN RNM LMXECM WPNCLWR RNM CQAWRCPW CPYRNMZ CPD RNM RNWZD RNYIM SNY WP RNMWZ YSP XCPEACEM CZM UCXXMD UMXRI WP YAZI ECAXI | CXX ECAX WI DWJWDMD WPRY RNZMM HCZRI YPM YV SNWUN RNM LMXECM WPNCLWR RNM CQAWRCPW CPYRNMZ CPD RNM RNWZD RNYIM SNY WP RNMWZ YSP XCPEACEM CZM UCXXMD UMXRI WP YAZI ECAXI | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 136 | 166 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0616 | AEENCEMELDCLTUAREVWTAWALNEBOMBOSIHSKERWOPAAELFWTEUEVEADTNTEERECNMTEFREIETSWUMAWEHIAFSOHATHOUNEWELRAANWCSEGSIAREEARBHEKUNNTMRANBWESECWMUISEEEEYAINESENMY | AEENCEMELDCLTUAREVWTAWALNEBOMBOSIHSKERWOPAAELFWTEUEVEADTNTEERECNMTEFREIETSWUMAWEHIAFSOHATHOUNEWELRAANWCSEGSIAREEARBHEKUNNTMRANBWESECWMUISEEEEYAINESENMY | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
cda-0019996 | 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 | 11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | polybius | polybius | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
kama-sutra-v2-0059 | KL ZGYEE JUHGQ CX QGL PLYOGLZ YXM KL ZGYEE JUHGQ CX QGL EYXMUXH HVCIXMZ YXM UX QGL JULEMZ | KL ZGYEE JUHGQ CX QGL PLYOGLZ YXM KL ZGYEE JUHGQ CX QGL EYXMUXH HVCIXMZ YXM UX QGL JULEMZ | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 72 | 89 | cipher_museum | 2.0 | public | null | null |
bazeries-190 | DRMAVSSHACQFANFIAUAPN | DRMAVSSHACQFANFIAUAPN | THE PACKAGE IS DELIVERED | bazeries | bazeries | transposition | {
"type": "integer",
"value": 7
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0020027 | ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA ABAAA AAABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABB BAAAB AABAA ABABB BAABB ABABA BAABA ABAAA ABBBA ABABA AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA BAAAB AABBB ABAAA AABAB BAABA BAAAB AABBB BAABB ABABB AAAAA ABBAA BAAAA AABAA AA... | ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA ABAAA AAABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABB BAAAB AABAA ABABB BAABB ABABA BAABA ABAAA ABBBA ABABA AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA BAAAB AABBB ABAAA AABAB BAABA BAAAB AABBB BAABB ABABB AAAAA ABBAA BAAAA AABAA AA... | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | bacon_cipher | bacon_cipher | null | {} | hard | en | 460 | 460 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
columnar-transposition-v2-0541 | CRINSASUSUITOPUEITBDBITSS | CRINSASUSUITOPUEITBDBITSS | SICUT PATRIBUS SIT DEUS NOBIS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
typex-v3-0334 | UNNTLAOGXHNEZNXUPX | UNNTLAOGXHNEZNXUPX | DEAD MEN TELL NO TALES | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
affine-v2-1736 | EH ETCNAQN DLTSHUQ EN KNLKEN GNAV LU HGNUTA ZNTEENLA NQ KELV OLVQN KPLA QPLV ENV YPZZNV ETCANV | EH ETCNAQN DLTSHUQ EN KNLKEN GNAV LU HGNUTA ZNTEENLA NQ KELV OLVQN KPLA QPLV ENV YPZZNV ETCANV | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 78 | 94 | cipher_museum | 2.0 | public | null | null |
typex-v2-0025 | KLKTFUFMOQHPER | KLKTFUFMOQHPER | TRUST BUT VERIFY | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
zimmermann-v3-0089 | 99999 90017 90018 90000 99998 99999 90004 90013 90002 90017 90024 90015 90019 90008 90014 90013 99998 99999 90017 90004 90011 90008 90004 90018 99998 00013 00000 99999 90012 90000 90019 90007 90004 90012 90000 90019 90008 90002 90000 90011 99998 99999 90003 90008 90005 90005 90008 90002 90020 90011 90019 90024 99998 00... | 99999 90017 90018 90000 99998 99999 90004 90013 90002 90017 90024 90015 90019 90008 90014 90013 99998 99999 90017 90004 90011 90008 90004 90018 99998 00013 00000 99999 90012 90000 90019 90007 90004 90012 90000 90019 90008 90002 90000 90011 99998 99999 90003 90008 90005 90005 90008 90002 90020 90011 90019 90024 99998 00... | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 460 | 551 | cipher_museum | 2.0 | public | null | null |
cda-0019374 | AABA ABAA BBAA BAAB AAAA BABB ABAA ABBA BBAB AAAB BAAB AAAB AAAB ABBA BBAA AABA AAAB AAAA ABBB AAAB AAAA AABB AAAA BBBA BBAB ABBA AAAB AABA AABB AABA BAAB AAAB BBBA AAAA ABAA AAAA ABAA BAAB ABBA BBAB AAAB BAAB AAAB ABAB AABA AABB BAAB AABA AAAA AAAA ABAA AABA BAAA BABA ABAA ABBA AAAA BAAA BAAA AABA ABAA AABB BAAA BBBA ... | AABA ABAA BBAA BAAB AAAA BABB ABAA ABBA BBAB AAAB BAAB AAAB AAAB ABBA BBAA AABA AAAB AAAA ABBB AAAB AAAA AABB AAAA BBBA BBAB ABBA AAAB AABA AABB AABA BAAB AAAB BBBA AAAA ABAA AAAA ABAA BAAB ABBA BBAB AAAB BAAB AAAB ABAB AABA AABB BAAB AABA AAAA AAAA ABAA AABA BAAA BABA ABAA ABBA AAAA BAAA BAAA AABA ABAA AABB BAAA BBBA ... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | bacon_cipher | bacon_cipher | null | {} | hard | en | 645 | 645 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0013196 | 0978 5725 7930 05101 06359 4782 02248 5746 00343 5034 2587 7881 05678 01634 7250 00337 5732 01292 06047 5052 0319 6304 02875 1634 04433 01017 01586 00337 04414 1278 01009 0322 05731 01667 01895 6605 3784 6334 02595 02879 04415 3507 02892 4434 02201 02237 04716 4732 01328 1583 1338 06680 1000 0351 6332 02839 4798 04451 ... | 0978 5725 7930 05101 06359 4782 02248 5746 00343 5034 2587 7881 05678 01634 7250 00337 5732 01292 06047 5052 0319 6304 02875 1634 04433 01017 01586 00337 04414 1278 01009 0322 05731 01667 01895 6605 3784 6334 02595 02879 04415 3507 02892 4434 02201 02237 04716 4732 01328 1583 1338 06680 1000 0351 6332 02839 4798 04451 ... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | zimmermann | zimmermann | null | {} | hard | en | 83 | 83 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
bifid-v2-0334 | AIFCOCBCLTRISBQDBEYEOYFOODTCEORYEQFPEOQKBPWMWVWMXQYSTZDLVNRDHEKWRHGRTUUNYRRDIRTK | AIFCOCBCLTRISBQDBEYEOYFOODTCEORYEQFPEOQKBPWMWVWMXQYSTZDLVNRDHEKWRHGRTUUNYRRDIRTK | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
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