id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
m94-179 | JFOPZQQJVDLPTYIFXDZMMGUFQJPSGBQQLNYFIPKVBLZOPHWAJCPGQOFSKQSGWWPKMMSYZRWXAACPDXKSSKLOBLISBCBYWQEZNQJUIPDEVZKKYBOPODCBSLYUMVRWZTGSULOAKCCXIHXLCPIQVINB | JFOPZQQJVDLPTYIFXDZMMGUFQJPSGBQQLNYFIPKVBLZOPHWAJCPGQOFSKQSGWWPKMMSYZRWXAACPDXKSSKLOBLISBCBYWQEZNQJUIPDEVZKKYBOPODCBSLYUMVRWZTGSULOAKCCXIHXLCPIQVINB | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | m94 | m94 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0213 | XEXQ WSYHQJ XQM JCYMCQ TLEOIDXQ PSHEW WIL PCDPL WC XWWXOF WIL JLYDXQ LQHJDX OHBILY DXOIHQL | XEXQ WSYHQJ XQM JCYMCQ TLEOIDXQ PSHEW WIL PCDPL WC XWWXOF WIL JLYDXQ LQHJDX OHBILY DXOIHQL | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 76 | 90 | cipher_museum | 2.0 | public | null | null |
autokey-v3-0488 | CBWEWXIHMQZBZCWXFVRVMWLHMECZSOWQBFEMOQDUBXTHDWHMKZCYXVFZACYXZTAQKJVDW | CBWEWXIHMQZBZCWXFVRVMWLHMECZSOWQBFEMOQDUBXTHDWHMKZCYXVFZACYXZTAQKJVDW | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
trifid-292 | FJPBAD+TUNGOALLALTIAURQZJELEDAUBQOLCIFIXKTBYUEWKKIJGUCDRXA | FJPBAD+TUNGOALLALTIAURQZJELEDAUBQOLCIFIXKTBYUEWKKIJGUCDRXA | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "TRIFID"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v2-0052 | DJBJMPVDMPBLAPULPEJBZYQEUCNMDLAJDMJPLMYZJMYUBHKHTJBXMHOYLUUHNMQJLHLAJUJP | DJBJMPVDMPBLAPULPEJBZYQEUCNMDLAJDMJPLMYZJMYUBHKHTJBXMHOYLUUHNMQJLHLAJUJP | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
polybius-035 | 24 33 52 11 42 44 23 15 32 34 42 11 31 24 43 44 34 44 23 15 35 23 54 43 24 13 11 31 11 43 44 23 42 15 15 24 43 44 34 34 33 15 | 24 33 52 11 42 44 23 15 32 34 42 11 31 24 43 44 34 44 23 15 35 23 54 43 24 13 11 31 11 43 44 23 42 15 15 24 43 44 34 34 33 15 | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 84 | 125 | cipher_museum | 0.2 | public | null | null |
two-square-v3-0061 | ONDDCWUGEALLOBDFMUCETTCKHAHKMGIVCOMUKTKGVLEAEGCUINUGCHUAATCUTSEAHITKPOIYCQIOMY | ONDDCWUGEALLOBDFMUCETTCKHAHKMGIVCOMUKTKGVLEAEGCUINUGCHUAATCUTSEAHITKPOIYCQIOMY | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0023 | MCXRETUOHXJTJ | MCXRETUOHXJTJ | FULL SAIL AHEAD | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-1040 | JPEZDFDTMVGAB | JPEZDFDTMVGAB | E PLURIBUS UNUM | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
trifid-149 | LHEOZYRNQOICBETS | LHEOZYRNQOICBETS | LOCK DOWN ALL GATES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
red-type-a-157 | RAKALEFEXELVEIPRYKEJOVEYSBVEYQWOXJERDNEFBE | RAKALEFEXELVEIPRYKEJOVEYSBVEYQWOXJERDNEFBE | GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
cda-0019708 | 42 34 45 44 15 13 24 35 23 15 42 43 42 15 11 14 11 22 42 24 14 24 33 11 35 42 15 43 13 42 24 12 15 14 22 15 34 32 15 44 42 24 13 35 11 44 44 15 42 33 35 15 15 42 42 15 51 24 15 52 11 33 14 42 15 35 42 34 14 45 13 24 12 24 31 24 44 54 32 11 44 44 15 42 24 33 42 15 43 15 11 42 13 23 21 42 15 41 45 15 33 13 54 11 33 11 31... | 42 34 45 44 15 13 24 35 23 15 42 43 42 15 11 14 11 22 42 24 14 24 33 11 35 42 15 43 13 42 24 12 15 14 22 15 34 32 15 44 42 24 13 35 11 44 44 15 42 33 35 15 15 42 42 15 51 24 15 52 11 33 14 42 15 35 42 34 14 45 13 24 12 24 31 24 44 54 32 11 44 44 15 42 24 33 42 15 43 15 11 42 13 23 21 42 15 41 45 15 33 13 54 11 33 11 31... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS A STRONG CLAIM NEEDS STRONG EVIDENCE | polybius | polybius | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
slidex-v3-0241 | KTMPRVHVGXZG | KTMPRVHVGXZG | YANKEE DOODLE | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0030 | TAXATIONWITHOUTREPRESENTETION | TAXATIONWITHOUTREPRESENTETION | TAXATION WITHOUT REPRESENTATION | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
m94-v2-0193 | ITTWQANVDFJKWKWYURDAFTQYBIGETOXIYSDDZZLJVBDCMTLRDXXOCANYWODHAIGOUQIIVBTLIXWX | ITTWQANVDFJKWKWYURDAFTQYBIGETOXIYSDDZZLJVBDCMTLRDXXOCANYWODHAIGOUQIIVBTLIXWX | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0025 | SMIXPGDKBQHVCH | SMIXPGDKBQHVCH | TRUST BUT VERIFY | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
babington-v3-0058 | ⟨w16⟩ ⟨w35⟩ ⟨w22⟩ ⟨a15⟩ ⟨w07⟩ ⟨w16⟩ ⟨a08⟩ ⟨w23⟩ ⟨a15⟩ ⟨w22⟩ ⟨w02⟩ ⟨w23⟩ ⟨w15⟩ ⟨w16⟩ ⟨w35⟩ ⟨w22⟩ ⟨a18⟩ ⟨w23⟩ | ⟨w16⟩ ⟨w35⟩ ⟨w22⟩ ⟨a15⟩ ⟨w07⟩ ⟨w16⟩ ⟨a08⟩ ⟨w23⟩ ⟨a15⟩ ⟨w22⟩ ⟨w02⟩ ⟨w23⟩ ⟨w15⟩ ⟨w16⟩ ⟨w35⟩ ⟨w22⟩ ⟨a18⟩ ⟨w23⟩ | OLD IRONSIDES HOLDS | babington | babington | nomenclator | {
"type": "seed",
"value": "WALSINGHAM"
} | expert | en | 90 | 107 | cipher_museum | 2.0 | public | null | null |
cda-0006458 | GUS NRGRQGVIS FGHNVSF COGGSEAF PRTBES ZOXVAU QYOVZF RAGEBCL ZSOFHERF HAQREGOVAGL WA O RVFGEVPHGWBA RB ABG QBASHFN BPSHFQOGVBA JNGU SAQELCGVBA EBHGN QVCVREF EROQ O UEVR VA O CESFQEVPSQ TSBZSGENQ COGGSEA | GUS NRGRQGVIS FGHNVSF COGGSEAF PRTBES ZOXVAU QYOVZF RAGEBCL ZSOFHERF HAQREGOVAGL WA O RVFGEVPHGWBA RB ABG QBASHFN BPSHFQOGVBA JNGU SAQELCGVBA EBHGN QVCVREF EROQ O UEVR VA O CESFQEVPSQ TSBZSGENQ COGGSEA | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 173 | 173 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
cda-0015268 | 44 23 15 15 33 24 22 32 11 32 11 13 23 24 33 15 45 43 15 14 42 34 44 34 42 43 44 34 13 42 15 11 44 15 11 35 34 31 54 11 31 35 23 11 12 15 44 24 13 13 24 35 23 15 42 34 35 15 33 43 34 45 42 13 15 44 34 34 31 43 11 31 31 34 52 24 33 14 15 35 15 33 14 15 33 44 51 15 42 24 21 24 13 11 44 24 34 33 21 42 15 41 45 15 33 13 54... | 44 23 15 15 33 24 22 32 11 32 11 13 23 24 33 15 45 43 15 14 42 34 44 34 42 43 44 34 13 42 15 11 44 15 11 35 34 31 54 11 31 35 23 11 12 15 44 24 13 13 24 35 23 15 42 34 35 15 33 43 34 45 42 13 15 44 34 34 31 43 11 31 31 34 52 24 33 14 15 35 15 33 14 15 33 44 51 15 42 24 21 24 13 11 44 24 34 33 21 42 15 41 45 15 33 13 54... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | polybius | polybius | null | {} | hard | en | 135 | 135 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
gronsfeld-vi-0098 | UJHTWBAHVTGCUMLIVHSZTRHVXPPLWUPYHVKVNDRIFHIIHUKYINOTHEHIKQKYIGYIWZVKVTOGRJLPF | UJHTWBAHVTGCUMLIVHSZTRHVXPPLWUPYHVKVNDRIFHIIHUKYINOTHEHIKQKYIGYIWZVKVTOGRJLPF | THE PRAYER OF A RIGHTEOUS PERSON IS POWERFUL AND EFFECTIVE IN REACHING THE VERY THRONE OF GOD | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "12345"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
null-cipher-047 | from one have about utna first get which more into call said to utna back | from one have about utna first get which more into call said to utna back | MEET AT THE OLD OAK | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 59 | 73 | cipher_museum | 0.2 | public | null | null |
nihilist-v2-0015 | 33 33 79 86 57 27 55 34 96 75 57 40 43 54 56 96 | 33 33 79 86 57 27 55 34 96 75 57 40 43 54 56 96 | ABORT AND WITHDRAW | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0577 | GOWQSIBNACKKFMGUIYFZPBGAYKMOMMOBNWZLVKZQASJSTOZJWBHJQWOIWFBTVEOPHKWIYQFZY | GOWQSIBNACKKFMGUIYFZPBGAYKMOMMOBNWZLVKZQASJSTOZJWBHJQWOIWFBTVEOPHKWIYQFZY | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0018352 | 06328 2588 01606 01588 04415 2892 02251 4172 00403 04144 00345 01034 02550 2831 04470 1651 6650 05967 1578 1334 5669 4751 06307 4775 05721 06042 06307 04710 1000 5722 1621 00315 6330 1615 0338 5048 4718 03861 07881 00377 03867 5106 02513 0383 0678 01634 06367 2843 0968 1015 02844 05123 2529 01646 05743 05658 4805 06677... | 06328 2588 01606 01588 04415 2892 02251 4172 00403 04144 00345 01034 02550 2831 04470 1651 6650 05967 1578 1334 5669 4751 06307 4775 05721 06042 06307 04710 1000 5722 1621 00315 6330 1615 0338 5048 4718 03861 07881 00377 03867 5106 02513 0383 0678 01634 06367 2843 0968 1015 02844 05123 2529 01646 05743 05658 4805 06677... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | 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. |
monoalphabetic-v2-1243 | VO RBOPOMKPO RBO POLPOQOJRWRCUOQ KM RBO TJCROD QRWROQ KM WHOPCSW CJ AOJOPWG SKJAPOQQ WQQOHIGOD WLLOWGCJA RK RBO QTLPOHO ETDAO KM RBO VKPGD MKP RBO POSRCRTDO KM KTP CJROJRCKJQ DK QKGOHJGY LTIGCQB | VO RBOPOMKPO RBO POLPOQOJRWRCUOQ KM RBO TJCROD QRWROQ KM WHOPCSW CJ AOJOPWG SKJAPOQQ WQQOHIGOD WLLOWGCJA RK RBO QTLPOHO ETDAO KM RBO VKPGD MKP RBO POSRCRTDO KM KTP CJROJRCKJQ DK QKGOHJGY LTIGCQB | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 164 | 194 | cipher_museum | 2.0 | public | null | null |
great-cipher-077 | 142 159 143 144 118 147 159 177 175 163 172 174 175 104 182 | 142 159 143 144 118 147 159 177 175 163 172 174 175 104 182 | MEET AT THE OLD OAK | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 45 | 59 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-1455 | JNNSLKOYODDDYWXCTOFVVRJKYDLPWGJNOSIZDHSRFAYRNZACMFQECARIYLELVIYHMJLFAVJFWCIZ | JNNSLKOYODDDYWXCTOFVVRJKYDLPWGJNOSIZDHSRFAYRNZACMFQECARIYLELVIYHMJLFAVJFWCIZ | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "VALOR"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
chaocipher-141 | OWJNJQEJDIPUUUVNJK | OWJNJQEJDIPUUUVNJK | THE BRIDGE IS SECURED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
commercial-code-v3-0092 | MEBAB GABAB BABAB ZUZUZ DAZUZ SAZUZ BEZUZ WAZUZ XAZUZ GAZUZ XUZUZ CABAB ZUZUZ KAZUZ BEZUZ QAZUZ BAZUZ RAZUZ XUZUZ ZUZUZ GAZUZ CEZUZ GAZUZ RAZUZ ZAZUZ XAZUZ XUZUZ LABAB ZUZUZ CAZUZ GAZUZ DAZUZ SAZUZ QAZUZ GAZUZ XAZUZ XUZUZ ZUZUZ RAZUZ GAZUZ DAZUZ GAZUZ XAZUZ XAZUZ BAZUZ WAZUZ GEZUZ XUZUZ KABAB ZUZUZ SAZUZ RAZUZ GAZUZ XU... | MEBAB GABAB BABAB ZUZUZ DAZUZ SAZUZ BEZUZ WAZUZ XAZUZ GAZUZ XUZUZ CABAB ZUZUZ KAZUZ BEZUZ QAZUZ BAZUZ RAZUZ XUZUZ ZUZUZ GAZUZ CEZUZ GAZUZ RAZUZ ZAZUZ XAZUZ XUZUZ LABAB ZUZUZ CAZUZ GAZUZ DAZUZ SAZUZ QAZUZ GAZUZ XAZUZ XUZUZ ZUZUZ RAZUZ GAZUZ DAZUZ GAZUZ XAZUZ XAZUZ BAZUZ WAZUZ GEZUZ XUZUZ KABAB ZUZUZ SAZUZ RAZUZ GAZUZ XU... | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 785 | 941 | cipher_museum | 2.0 | public | null | null |
cda-0013848 | HHMFSZREFIQSIFUIEFBWZOFTQWHFBUYNKMOFHBMNIZEIILXYENUYTSRCEQEOIIEMIPVHKTSMXIYNNNUVAMDYTWRTGEEMMLICFBPJSABYTKTASFLHPWTSOIYLRTEEIYAVOMFVYWGAVPZR | HHMFSZREFIQSIFUIEFBWZOFTQWHFBUYNKMOFHBMNIZEIILXYENUYTSRCEQEOIIEMIPVHKTSMXIYNNNUVAMDYTWRTGEEMMLICFBPJSABYTKTASFLHPWTSOIYLRTEEIYAVOMFVYWGAVPZR | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | running_key | running_key | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
affine-v2-0682 | WITIVGF WVGTJ DGC JGYIT XKUYCNQVW JDI WVIGJ VKXIV KC TAE AHIT PVAM KJC CAQVUI JA JDI CIG | WITIVGF WVGTJ DGC JGYIT XKUYCNQVW JDI WVIGJ VKXIV KC TAE AHIT PVAM KJC CAQVUI JA JDI CIG | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | affine | affine | substitution | {
"a": 7,
"b": 6
} | beginner | en | 72 | 88 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0467 | AIUANNTAUNOEIIMBBNORLBGVPDTFSAEGEMSIILTNLIEHWATHBSNETRSCEAICTEOASWNSOYANASQHETZE | AIUANNTAUNOEIIMBBNORLBGVPDTFSAEGEMSIILTNLIEHWATHBSNETRSCEAICTEOASWNSOYANASQHETZE | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | double_transposition | double_transposition | transposition | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
nihilist-203 | 25 25 83 34 75 56 44 42 28 67 54 34 64 26 76 56 47 75 44 44 47 44 85 56 46 35 34 64 34 76 56 44 73 24 44 25 56 75 47 67 24 24 | 25 25 83 34 75 56 44 42 28 67 54 34 64 26 76 56 47 75 44 44 47 44 85 56 46 35 34 64 34 76 56 44 73 24 44 25 56 75 47 67 24 24 | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | nihilist | nihilist | fractionation | {
"polybius": "ENIGMA",
"keyword": "NIHIL"
} | advanced | en | 84 | 125 | cipher_museum | 0.2 | public | null | null |
m94-v2-0156 | FYXFCEAAXFIZWTUCIHMGIJFRJSHITYVCXWDRAFBNDNHKGRRBYVGTIGESJCBXKHACKRHFOXIMCT | FYXFCEAAXFIZWTUCIHMGIJFRJSHITYVCXWDRAFBNDNHKGRRBYVGTIGESJCBXKHACKRHFOXIMCT | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0253 | 33 75 11 63 18 58 29 16 28 77 42 27 87 44 65 24 69 77 68 33 | 33 75 11 63 18 58 29 16 28 77 42 27 87 44 65 24 69 77 68 33 | STEAM POWER TRANSFORMS | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 40 | 59 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0017 | FHRMPRYWIDMNQUMISEXP | FHRMPRYWIDMNQUMISEXP | THE KING DEMANDS FEALTY | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
kl7-v3-0399 | AZBFSSKBIOLTVOXSXNKLUWWKQIGYQSIOKKPSGTBJBDMNNOWMGMKRWZOIJWNSKKOLQKFOUSDZPVIJSACK | AZBFSSKBIOLTVOXSXNKLUWWKQIGYQSIOKKPSGTBJBDMNNOWMGMKRWZOIJWNSKKOLQKFOUSDZPVIJSACK | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0016935 | K r· L ┐· └ ⌐ ⌒· ⌐· ⌐ Γ· ┌· r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X ┐· ⌐ Γ· ┌· X ┘· ⌐· └ L K K L ┌· X X Γ· ┌ X· └ K ⌐ ─ L ┘· X· X └ ⌒· X └ ┘· ⌒ └ ⌒· | K r· L ┐· └ ⌐ ⌒· ⌐· ⌐ Γ· ┌· r Γ· ┐· r· L ┌· L ─ r ┌· ⌒· ┐· K X ┐· ⌐ Γ· ┌· X ┘· ⌐· └ L K K L ┌· X X Γ· ┌ X· └ K ⌐ ─ L ┘· X· X └ ⌒· X └ ┘· ⌒ └ ⌒· | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY SLOWLY | pigpen | pigpen | null | {} | easy | en | 23 | 23 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0003100 | CPSAL TNPHR YYADH ICTRP TEIAN KREWO GANEI NFCRR ADEUG | CPSAL TNPHR YYADH ICTRP TEIAN KREWO GANEI NFCRR ADEUG | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | stager_route | stager_route | null | {
"cols": 9
} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
cda-0002841 | N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR GUR OVSVQ PVCURE PBZOVARF N CBYLOVHF FDHNER JVGU GENAFCBFVGVBA GBZBEEBJ | N GENAFCNERAG GBBY FUBHYQ FUBJ VGF ERNFBAVAT GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR GUR OVSVQ PVCURE PBZOVARF N CBYLOVHF FDHNER JVGU GENAFCBFVGVBA GBZBEEBJ | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION TOMORROW | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 134 | 134 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
columnar-transposition-vi-0080 | AAERPUFVATYETYROSOLFECHTOPOHPIRDTRNEOOERGSNENCNIVRGRFTESFEIEGRNDHEIUOWAEIHEHF | AAERPUFVATYETYROSOLFECHTOPOHPIRDTRNEOOERGSNENCNIVRGRFTESFEIEGRNDHEIUOWAEIHEHF | THE PRAYER OF A RIGHTEOUS PERSON IS POWERFUL AND EFFECTIVE IN REACHING THE VERY THRONE OF GOD | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
argenti-118 | 78 70 19 31 45 30 87 24 70 19 53 30 28 69 87 19 75 30 19 11 31 32 53 88 87 89 46 84 69 53 17 45 27 24 76 32 30 29 19 87 50 30 62 69 88 32 11 54 10 31 69 24 70 19 42 54 32 53 75 69 13 86 32 62 28 69 87 31 45 30 19 27 53 24 70 68 58 31 45 30 10 32 87 88 76 11 66 62 24 70 19 13 72 54 10 46 30 58 76 31 45 19 53 30 69 28 24... | 78 70 19 31 45 30 87 24 70 19 53 30 28 69 87 19 75 30 19 11 31 32 53 88 87 89 46 84 69 53 17 45 27 24 76 32 30 29 19 87 50 30 62 69 88 32 11 54 10 31 69 24 70 19 42 54 32 53 75 69 13 86 32 62 28 69 87 31 45 30 19 27 53 24 70 68 58 31 45 30 10 32 87 88 76 11 66 62 24 70 19 13 72 54 10 46 30 58 76 31 45 19 53 30 69 28 24... | 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 | argenti | argenti | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 274 | 410 | cipher_museum | 0.2 | public | null | null |
cda-0014200 | 64 72 32 67 39 48 60 3 27 70 50 63 72 50 66 25 93 26 81 2 63 63 30 59 48 50 87 45 30 14 40 81 2 3 22 15 35 58 92 63 68 49 45 15 91 78 93 35 33 48 99 68 34 45 63 41 40 48 2 43 14 58 23 11 14 99 21 22 3 91 27 49 15 60 41 59 15 27 52 93 43 91 58 49 67 14 68 93 76 70 60 94 33 82 3 87 17 93 68 48 35 25 14 58 22 50 94 45 32 ... | 64 72 32 67 39 48 60 3 27 70 50 63 72 50 66 25 93 26 81 2 63 63 30 59 48 50 87 45 30 14 40 81 2 3 22 15 35 58 92 63 68 49 45 15 91 78 93 35 33 48 99 68 34 45 63 41 40 48 2 43 14 58 23 11 14 99 21 22 3 91 27 49 15 60 41 59 15 27 52 93 43 91 58 49 67 14 68 93 76 70 60 94 33 82 3 87 17 93 68 48 35 25 14 58 22 50 94 45 32 ... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | homophonic | homophonic | null | {} | hard | en | 171 | 171 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
adfgx-v2-0448 | DFDGDDFAAGGGFAFDGGFXFGDGGGADDFAFFXFDGAAXAXFFGGFAXAGGGDGFGDDAGAAGAFDFADDDAFDXXGFGGFFFAFGGGDDGDDAGDDDADXAFAFGFDFGFGADXFFFAFGGDDFDAGAFDXAFGDGDDFGDAXA | DFDGDDFAAGGGFAFDGGFXFGDGGGADDFAFFXFDGAAXAXFFGGFAXAGGGDGFGDDAGAAGAFDFADDDAFDXXGFGGFFFAFGGGDDGDDAGDDDADXAFAFGFDFGFGADXFFFAFGGDDFDAGAFDXAFGDGDDFGDAXA | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
cda-0021249 | turns house extra leads incur below range above raids yield phase range early south early range value exact south kings north other width leads early | turns house extra leads incur below range above raids yield phase range early south early range value exact south kings north other width leads early | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY NEVER | 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. |
wheatstone-085 | SDJELPEDSAMJHEL | SDJELPEDSAMJHEL | SILENCE IS GOLDEN | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0153 | ZUGYXEXEFAILD | ZUGYXEXEFAILD | HONOR ABOVE ALL | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-523 | SBF NTCAE LOKVJ IKW DTHMQ KUFO SBF GPZX YKR JFPO SBF OCUFO | SBF NTCAE LOKVJ IKW DTHMQ KUFO SBF GPZX YKR JFPO SBF OCUFO | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "PLAYFAIR"
} | beginner | en | 47 | 58 | cipher_museum | 0.2 | public | null | null |
copiale-v3-0226 | T4 J3 V3 K2 J8 Q1 E0 V7 R9 U1 S9 K8 W4 C5 M4 C1 N1 G3 K8 | T4 J3 V3 K2 J8 Q1 E0 V7 R9 U1 S9 K8 W4 C5 M4 C1 N1 G3 K8 | TREACHERY IN THE COURT | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1099 | AVRHYPBESUSWASJACBRWPFZOKIOYOTSOIORZHUSIBGFWRUQNJRSFLQYHFTSUHQECJZHUSGSOVB | AVRHYPBESUSWASJACBRWPFZOKIOYOTSOIORZHUSIBGFWRUQNJRSFLQYHFTSUHQECJZHUSGSOVB | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "HONOR"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0248 | KJCXHQ | KJCXHQ | EUREKA | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
cda-0001994 | FLISN LBFWO HEPSL AOSTO OROON EKASX ISAUT GURRL NECMX LEPRA ATCKY TYEAX CDOES NEESW HSILX | FLISN LBFWO HEPSL AOSTO OROON EKASX ISAUT GURRL NECMX LEPRA ATCKY TYEAX CDOES NEESW HSILX | FAIL CLOSED IS A POSTURE NOT A SLOGAN BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | scytale | scytale | null | {
"cols": 5
} | medium | en | 75 | 75 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
playfair-v2-0200 | HQAOUDSLOZKRNAQEXHASFNGBBSHWLFTRMDOKHPHSUAXHASFNXHOKENCKENOBLFGBZURKNSEFKZOATEIGFDBV | HQAOUDSLOZKRNAQEXHASFNGBBSHWLFTRMDOKHPHSUAXHASFNXHOKENCKENOBLFGBZURKNSEFKZOATEIGFDBV | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0070 | ┌ ⌐ ¬• ┐ ¬• ┼ ┤• ┌• ┤• ┐ ┼• ╳ ┼ ├ ┬ ┐ ╲ ╳ ┼ ¬• ┼ ╲ ¬ ┤• ┌• ┼ ⌐ ╳ ╳ ┬ ┼ ┬ ┼ ⌐ ╲• ┼ ┼• ╲ ⌐ ┼• ├ ¬ ┤• ┼• ┤ ┐ ┐• ├• ┼ ├ ╳ ┬ ⌐ ╳ ╳ ┬ ┼ ┼ ⌐ ┐• ╳ ┬ ┤• ┐• ┴ ┐ ╳ ╲ ╳ ┬ ┼ ╲ ╱ ┼• | ┌ ⌐ ¬• ┐ ¬• ┼ ┤• ┌• ┤• ┐ ┼• ╳ ┼ ├ ┬ ┐ ╲ ╳ ┼ ¬• ┼ ╲ ¬ ┤• ┌• ┼ ⌐ ╳ ╳ ┬ ┼ ┬ ┼ ⌐ ╲• ┼ ┼• ╲ ⌐ ┼• ├ ¬ ┤• ┼• ┤ ┐ ┐• ├• ┼ ├ ╳ ┬ ⌐ ╳ ╳ ┬ ┼ ┼ ⌐ ┐• ╳ ┬ ┤• ┐• ┴ ┐ ╳ ╲ ╳ ┬ ┼ ╲ ╱ ┼• | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 94 | 167 | cipher_museum | 2.0 | public | null | null |
cda-0019277 | CARR YRIG HTYE ARSP ARTS TROO POUT ERGI VENR ADIO ALON GPHA SEHO LDSY EARS ROAD SEXT RAWA TCHA FTER ROUT EDRA FTSW IFTP OINT ABOV ETHR EEIN TELE IGHT NOTE S | CARR YRIG HTYE ARSP ARTS TROO POUT ERGI VENR ADIO ALON GPHA SEHO LDSY EARS ROAD SEXT RAWA TCHA FTER ROUT EDRA FTSW IFTP OINT ABOV ETHR EEIN TELE IGHT NOTE S | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | 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. |
purple-033 | XQXXTXWYMBJZXXZCDMZQANBRKBRWIDJYZSUG | XQXXTXWYMBJZXXZCDMZQANBRKBRWIDJYZSUG | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | purple | purple | machine | {
"type": "seed",
"value": "PURPLE"
} | expert | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
diana-177 | KLUZNTZXYAZFBKKYQSOXYAAQOBUPEAOBJDLMOYLNEAZEKHNPGEUEWGMDYMQCOKKYXTZZLDSALAKNXFFQLNBQOEZVAASUYJRRBACZAQPAHDLLERJDLMSLARKBOZOAIMKCVYXPUYCWAALARRMANKRGSPSMIAA | KLUZNTZXYAZFBKKYQSOXYAAQOBUPEAOBJDLMOYLNEAZEKHNPGEUEWGMDYMQCOKKYXTZZLDSALAKNXFFQLNBQOEZVAASUYJRRBACZAQPAHDLLERJDLMSLARKBOZOAIMKCVYXPUYCWAALARRMANKRGSPSMIAA | IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-0867 | UIGDWUPHZFSJURKWJVDQJNRRWUBPFJUPVKJTUCWJJUKVFNBVWJSPHONGFCQIEFCWMBSQDIFJVKJSUQVFGFVBTSUQUZJOJHSDFKWNTBUXGKFEWTGJPTZJSAZMJDJFFOPPQTBDERZOUDHSFHNHHUFF | UIGDWUPHZFSJURKWJVDQJNRRWUBPFJUPVKJTUCWJJUKVFNBVWJSPHONGFCQIEFCWMBSQDIFJVKJSUQVFGFVBTSUQUZJOJHSDFKWNTBUXGKFEWTGJPTZJSAZMJDJFFOPPQTBDERZOUDHSFHNHHUFF | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0342 | RCDRBPSOGZROEKELSJBNACVWBKUPWMYQZGONVRTRCWIUMOQWSPYIDCBWGEWAIMJIDEUPJJQEOBIR | RCDRBPSOGZROEKELSJBNACVWBKUPWMYQZGONVRTRCWIUMOQWSPYIDCBWGEWAIMJIDEUPJJQEOBIR | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
trifid-031 | RHLEVOADFVCWGJJPD+ZXAFF+NADJ+EPHJQAQXQDZIQWIXACLODIWFJGLL | RHLEVOADFVCWGJJPD+ZXAFF+NADJ+EPHJQAQXQDZIQWIXACLODIWFJGLL | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FELIX"
} | advanced | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
fialka-226 | OUYKDIUSFCUQJMOPZCZFNPBUGZNEBEKVMLKQFGDMOLTVUEULGWNIPNBBL | OUYKDIUSFCUQJMOPZCZFNPBUGZNEBEKVMLKQFGDMOLTVUEULGWNIPNBBL | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | fialka | fialka | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
cda-0019453 | 20 8 5 12 9 2 18 1 18 25 16 18 5 19 5 18 22 5 19 11 14 15 23 12 5 4 7 5 6 15 18 20 8 5 3 15 13 13 21 14 9 20 25 6 1 9 12 3 12 15 19 5 4 9 19 1 16 15 19 20 21 18 5 14 15 20 1 19 12 15 7 1 14 20 15 13 15 18 18 15 23 | 20 8 5 12 9 2 18 1 18 25 16 18 5 19 5 18 22 5 19 11 14 15 23 12 5 4 7 5 6 15 18 20 8 5 3 15 13 13 21 14 9 20 25 6 1 9 12 3 12 15 19 5 4 9 19 1 16 15 19 20 21 18 5 14 15 20 1 19 12 15 7 1 14 20 15 13 15 18 18 15 23 | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY FAIL CLOSED IS A POSTURE NOT A SLOGAN TOMORROW | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
rail-fence-es-075 | QUACEUMCBROOITINHACPARAEOAP | QUACEUMCBROOITINHACPARAEOAP | QUIEN MUCHO ABARCA POCO APRIETA | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | es | 27 | 27 | cipher_museum | 0.2 | public | null | null |
hist-kryptos-k1-001 | EMUFPHZLRFAXYUSDJKZLDKRNSHGNFIVJ | EMUFPHZLRFAXYUSDJKZLDKRNSHGNFIVJ | BETWEEN SUBTLE SHADING AND THE ABSENCE OF LIGHT LIES THE NUANCE OF IQLUSION | kryptos | kryptos | polyalphabetic | {
"keyword": "KRYPTOS",
"alphabet_key": "KRYPTOSABCDEFGHIJLMNQUVWXZ"
} | advanced | en | 32 | 32 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0482 | GTSTRQEUDNNROB | GTSTRQEUDNNROB | PRESS THE ATTACK | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0360 | IJHQCEJFOXVVPAZYLWHEGSGYYUKOHMDTWCPDSEJHMMVRKPFWDZHKSCQMMIUINYZKEHZCQVCOSTIWMJKVAHOEZKCOBKZQGOMYFGUXKMMBDPXJODFCNDDQPAYPPSULUXSTCSNYODXTLDEVAMR | IJHQCEJFOXVVPAZYLWHEGSGYYUKOHMDTWCPDSEJHMMVRKPFWDZHKSCQMMIUINYZKEHZCQVCOSTIWMJKVAHOEZKCOBKZQGOMYFGUXKMMBDPXJODFCNDDQPAYPPSULUXSTCSNYODXTLDEVAMR | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0117 | TJVPZBLIRTKRIWHLPQYNCELCBUHFZCCSHAREBYLZUXYERJKNQUCTLZQKSZBKBXMNHCVJRCMQLXQTSPGEKQQTYHJGVNBYUPFYFSGLYKGDEJVQXLGUQTMROKKWCEQEOWNKYPRVHEIFVXXYUARJJMNNXAMIAUYAWBWGROQKOTPLPAICLQSGUAD | TJVPZBLIRTKRIWHLPQYNCELCBUHFZCCSHAREBYLZUXYERJKNQUCTLZQKSZBKBXMNHCVJRCMQLXQTSPGEKQQTYHJGVNBYUPFYFSGLYKGDEJVQXLGUQTMROKKWCEQEOWNKYPRVHEIFVXXYUARJJMNNXAMIAUYAWBWGROQKOTPLPAICLQSGUAD | FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 179 | 179 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0332 | RFORIKDQWYWBFHQORPQQLMGNWYJIMAVRXUAAXTQXDWQIZBUWEDKSSMICUSOKKGQWBVBIXAYYLTTJKY | RFORIKDQWYWBFHQORPQQLMGNWYJIMAVRXUAAXTQXDWQIZBUWEDKSSMICUSOKKGQWBVBIXAYYLTTJKY | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0269 | MOMMVSMOIGWZSSETLWKTDSXCLQYQIJVSLGKQTTEGVJXLIKVEEKURCARXWYRBLPXCPWRQGFXJPKWY | MOMMVSMOIGWZSSETLWKTDSXCLQYQIJVSLGKQTTEGVJXLIKVEEKURCARXWYRBLPXCPWRQGFXJPKWY | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0567 | FOHTANHVELRXOLEHVLAEVLIXROWAEYTRENSXGVOTHSWBSOHXOERHIOHESTXXDDLESNOLHPXXSTDGOTEIAEXX | FOHTANHVELRXOLEHVLAEVLIXROWAEYTRENSXGVOTHSWBSOHXOERHIOHESTXXDDLESNOLHPXXSTDGOTEIAEXX | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | scytale | scytale | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0913 | ZTWHKUYFIVXLFPNTKDZUKTUSKXOGSOYHPZLXQEXLCHQZTKUGGRSYXTHCEXRFIXSFEPVKDKIKIRIZXDZI | ZTWHKUYFIVXLFPNTKDZUKTUSKXOGSOYHPZLXQEXLCHQZTKUGGRSYXTHCEXRFIXSFEPVKDKIKIRIZXDZI | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0019831 | 16 21 2 12 9 3 9 14 6 18 1 19 20 18 21 3 20 21 18 5 4 5 19 5 18 22 5 19 3 1 18 5 6 21 12 4 5 19 9 7 14 18 15 21 20 5 3 9 16 8 5 18 19 18 5 1 4 1 7 18 9 4 9 14 1 16 18 5 19 3 18 9 2 5 4 7 5 15 13 5 20 18 9 3 16 1 20 20 5 18 14 3 18 25 16 20 15 7 18 1 16 8 25 18 5 23 1 18 4 19 16 1 20 9 5 14 3 5 1 14 4 3 1 18 5 6 21 12 2... | 16 21 2 12 9 3 9 14 6 18 1 19 20 18 21 3 20 21 18 5 4 5 19 5 18 22 5 19 3 1 18 5 6 21 12 4 5 19 9 7 14 18 15 21 20 5 3 9 16 8 5 18 19 18 5 1 4 1 7 18 9 4 9 14 1 16 18 5 19 3 18 9 2 5 4 7 5 15 13 5 20 18 9 3 16 1 20 20 5 18 14 3 18 25 16 20 15 7 18 1 16 8 25 18 5 23 1 18 4 19 16 1 20 9 5 14 3 5 1 14 4 3 1 18 5 6 21 12 2... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 180 | 180 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
diana-v3-0468 | CDRQKIYZNRLSKESYQLWOTZDQBQGGYYQTAOGBZXQJDJEXNRDBJORJADVKUDMAPJJFTNEXKVFLA | CDRQKIYZNRLSKESYQLWOTZDQBQGGYYQTAOGBZXQJDJEXNRDBJORJADVKUDMAPJJFTNEXKVFLA | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
bazeries-102 | LSMYPIYBMTPAMEBSQCICSITPIEQNLEIAKCPUCKUJJLKLCSTITJLPNQTQPEVRQECP | LSMYPIYBMTPAMEBSQCICSITPIEQNLEIAKCPUCKUJJLKLCSTITJLPNQTQPEVRQECP | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 13
} | advanced | en | 64 | 64 | cipher_museum | 0.2 | public | null | null |
nihilist-v2-0117 | 65 37 59 68 55 30 33 56 58 75 24 40 36 54 79 67 26 50 66 43 87 97 44 66 52 46 95 59 47 59 36 34 65 98 25 49 65 47 75 78 28 27 55 34 65 79 47 27 72 27 78 88 58 57 36 54 79 87 56 46 45 46 79 57 58 58 36 34 56 78 48 48 36 46 58 57 25 59 56 54 79 67 48 66 36 54 67 75 64 30 46 57 78 66 55 30 43 46 89 77 34 30 63 55 86 59 24... | 65 37 59 68 55 30 33 56 58 75 24 40 36 54 79 67 26 50 66 43 87 97 44 66 52 46 95 59 47 59 36 34 65 98 25 49 65 47 75 78 28 27 55 34 65 79 47 27 72 27 78 88 58 57 36 54 79 87 56 46 45 46 79 57 58 58 36 34 56 78 48 48 36 46 58 57 25 59 56 54 79 67 48 66 36 54 67 75 64 30 46 57 78 66 55 30 43 46 89 77 34 30 63 55 86 59 24... | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | nihilist | nihilist | fractionation | {
"polybius": "PALACE",
"keyword": "BATTLE"
} | advanced | en | 344 | 515 | cipher_museum | 2.0 | public | null | null |
polybius-v2-0117 | 44 23 15 22 42 15 11 44 13 24 35 23 15 42 34 21 31 34 45 24 43 53 24 51 24 33 51 15 33 44 15 14 12 54 11 33 44 34 24 33 15 11 33 14 12 34 33 11 51 15 33 44 45 42 15 42 34 43 43 24 22 33 34 31 45 43 15 14 11 33 34 32 15 33 13 31 11 44 34 42 34 21 34 51 15 42 21 24 51 15 23 45 33 14 42 15 14 33 45 32 12 15 42 43 42 15 35... | 44 23 15 22 42 15 11 44 13 24 35 23 15 42 34 21 31 34 45 24 43 53 24 51 24 33 51 15 33 44 15 14 12 54 11 33 44 34 24 33 15 11 33 14 12 34 33 11 51 15 33 44 45 42 15 42 34 43 43 24 22 33 34 31 45 43 15 14 11 33 34 32 15 33 13 31 11 44 34 42 34 21 34 51 15 42 21 24 51 15 23 45 33 14 42 15 14 33 45 32 12 15 42 43 42 15 35... | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 344 | 515 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0123 | 123 154 174 132 151 145 112 138 172 166 131 119 138 102 150 145 165 152 175 124 138 163 172 170 106 116 138 172 131 170 100 125 179 158 138 131 160 138 108 143 129 166 178 112 152 140 178 119 171 161 173 166 112 140 108 178 166 124 138 163 172 133 119 137 142 167 154 125 135 142 115 144 100 173 160 138 133 105 117 137 ... | 123 154 174 132 151 145 112 138 172 166 131 119 138 102 150 145 165 152 175 124 138 163 172 170 106 116 138 172 131 170 100 125 179 158 138 131 160 138 108 143 129 166 178 112 152 140 178 119 171 161 173 166 112 140 108 178 166 124 138 163 172 133 119 137 142 167 154 125 135 142 115 144 100 173 160 138 133 105 117 137 ... | 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 | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 399 | 531 | cipher_museum | 2.0 | public | null | null |
nihilist-178 | 56 44 42 48 54 35 45 52 27 44 25 56 55 24 66 25 64 42 55 44 36 | 56 44 42 48 54 35 45 52 27 44 25 56 55 24 66 25 64 42 55 44 36 | THE PACKAGE IS DELIVERED | nihilist | nihilist | fractionation | {
"polybius": "ENIGMA",
"keyword": "NIHIL"
} | advanced | en | 42 | 62 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0353 | DUTONUFHMOTPOHONTPTGZNAY | DUTONUFHMOTPOHONTPTGZNAY | CARTHAGE MUST BE DESTROYED | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
m209-v3-0174 | XDTXRYOPPSQJZYYTKKARZKBONBFLJUYXXDGYPMAPBDOQYUMRAZJVEKMUXZCKLVNNDUJLKUALIS | XDTXRYOPPSQJZYYTKKARZKBONBFLJUYXXDGYPMAPBDOQYUMRAZJVEKMUXZCKLVNNDUJLKUALIS | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0164 | BIAATLSSAJOIASLTELROMR | BIAATLSSAJOIASLTELROMR | FLEET ASSEMBLES AT HARBOR | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
cda-0017819 | qokal okeedy rcheol shedy daiin shor aiiin otol otain otaiin raiin lkaiin lkaiin chedy chor qokeedy raiin qotedy kaiiin choldaiin oror rcheol ykcheol ctaiin chol ypchol qotedy dal ctaiin sharal okedy ytedy oror otaiin qokedy qokedy lkaiin okeedy okshy chor ypchol oxed okain dainy chor okedy dal chedy aiiin oxed shor qo... | qokal okeedy rcheol shedy daiin shor aiiin otol otain otaiin raiin lkaiin lkaiin chedy chor qokeedy raiin qotedy kaiiin choldaiin oror rcheol ykcheol ctaiin chol ypchol qotedy dal ctaiin sharal okedy ytedy oror otaiin qokedy qokedy lkaiin okeedy okshy chor ypchol oxed okain dainy chor okedy dal chedy aiiin oxed shor qo... | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | voynich_render | voynich_render | null | {} | hard | en | 340 | 340 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0004998 | SNVY PYBF RQVF NCBF GHER ABGN FYBT NAQV TENC UNAQ GEVT ENCU SERD HRAP VRFR KCBF RFVZ CYRP VCUR EFNZ BQRY PNAP YNFF VSLC NGGR EAFO HGVG PNAN YFBO RJEB ATNG ENAF CNER AGGB BYFU BHYQ FUBJ VGFE RNFB AVAT PREG NVAY L | SNVY PYBF RQVF NCBF GHER ABGN FYBT NAQV TENC UNAQ GEVT ENCU SERD HRAP VRFR KCBF RFVZ CYRP VCUR EFNZ BQRY PNAP YNFF VSLC NGGR EAFO HGVG PNAN YFBO RJEB ATNG ENAF CNER AGGB BYFU BHYQ FUBJ VGFE RNFB AVAT PREG NVAY L | FAIL CLOSED IS A POSTURE NOT A SLOGAN DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG A TRANSPARENT TOOL SHOULD SHOW ITS REASONING CERTAINLY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 169 | 169 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0013786 | 34 12 43 15 42 51 11 12 31 15 15 51 24 14 15 33 13 15 13 34 32 15 43 12 15 21 34 42 15 13 34 33 21 24 14 15 33 13 15 | 34 12 43 15 42 51 11 12 31 15 15 51 24 14 15 33 13 15 13 34 32 15 43 12 15 21 34 42 15 13 34 33 21 24 14 15 33 13 15 | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | polybius | polybius | null | {} | medium | en | 39 | 39 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
playfair-v3-0883 | LQKQGSOQPLPFHWBGXCKYTGCKHCRZTLRONGPLGSCXHBETFLDCHBUDXATCXAQKDFFMOCDAUPBFUZTUCFHBXREPFMRXMBCY | LQKQGSOQPLPFHWBGXCKYTGCKHCRZTLRONGPLGSCXHBETFLDCHBUDXATCXAQKDFFMOCDAUPBFUZTUCFHBXREPFMRXMBCY | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 92 | 92 | cipher_museum | 2.0 | public | null | null |
kl7-167 | CAGRMLAZWUEJBYYZBSVTJDXAJXIIWDXGSIKELLKTHDVLJNDJG | CAGRMLAZWUEJBYYZBSVTJDXAJXIIWDXGSIKELLKTHDVLJNDJG | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | kl7 | kl7 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
great-cipher-v3-0254 | 101 140 131 158 133 162 152 111 116 172 142 | 101 140 131 158 133 162 152 111 116 172 142 | THE FACTORY ROARS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 33 | 43 | cipher_museum | 2.0 | public | null | null |
wheatstone-027 | QNTQMWKBPPTQ | QNTQMWKBPPTQ | THE TRAP IS SET | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "WHEATSTONE"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0019875 | WLWITLQDYFOIDISFVHOXPQEXCVBPQTYOZGWKDXVYLEEB | WLWITLQDYFOIDISFVHOXPQEXCVBPQTYOZGWKDXVYLEEB | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | vernam | vernam | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
double-transposition-v2-0494 | OLSRNEHNEMEEETIOEIPIWWHHHLMKEEKHDMRDLAYNEFEEHGSNASHRSIHNRTLSHSWAUITTEASURNLHMFTEOHABDAMEEHOETTIHTTHNLITESGRREPEEITOSELSHDOLTMITORASOAETSNEYOPEEHDSTUHREEADLSMEASESTE | OLSRNEHNEMEEETIOEIPIWWHHHLMKEEKHDMRDLAYNEFEEHGSNASHRSIHNRTLSHSWAUITTEASURNLHMFTEOHABDAMEEHOETTIHTTHNLITESGRREPEEITOSELSHDOLTMITORASOAETSNEYOPEEHDSTUHREEADLSMEASESTE | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | double_transposition | double_transposition | transposition | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0003238 | CRREE RIVRJ NAQER CEBQH PVOVY VGLZN GGREV AERFR NEPUG URRAV TZNZN PUVAR HFRQE BGBEF GBPER NGRNC BYLNY CUNOR GVPPV CUREQ BABGP BASHF RBOSH FPNGV BAJVG URAPE LCGVB ANYJN LF | CRREE RIVRJ NAQER CEBQH PVOVY VGLZN GGREV AERFR NEPUG URRAV TZNZN PUVAR HFRQE BGBEF GBPER NGRNC BYLNY CUNOR GVPPV CUREQ BABGP BASHF RBOSH FPNGV BAJVG URAPE LCGVB ANYJN LF | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION ALWAYS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 142 | 142 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
chinese-telegraph-v3-0104 | 1421 0472 0285 1599 0285 0856 0918 0856 0012 1024 1255 0918 0601 0285 0156 1421 1672 0472 0538 0156 0472 1255 0012 0856 0347 1255 0918 0792 0856 0538 0856 0285 1421 0285 0285 0856 0347 0918 1255 1421 1821 1421 0472 1255 0285 0285 1421 0918 0856 0538 0856 0285 1421 0285 0285 0856 0285 0538 0408 0472 1421 1821 0219 0285 ... | 1421 0472 0285 1599 0285 0856 0918 0856 0012 1024 1255 0918 0601 0285 0156 1421 1672 0472 0538 0156 0472 1255 0012 0856 0347 1255 0918 0792 0856 0538 0856 0285 1421 0285 0285 0856 0347 0918 1255 1421 1821 1421 0472 1255 0285 0285 1421 0918 0856 0538 0856 0285 1421 0285 0285 0856 0285 0538 0408 0472 1421 1821 0219 0285 ... | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 708 | 884 | cipher_museum | 2.0 | public | null | null |
beaufort-fr-040 | QEUUOLNHXKJBBVEPJAJQSLCTJ | QEUUOLNHXKJBBVEPJAJQSLCTJ | LA GARDE MEURT ET NE SE REND PAS | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "BEAUFORT"
} | intermediate | fr | 25 | 25 | cipher_museum | 0.2 | public | null | null |
cda-0004883 | TERPE ETONI NSSAH AEECO ETNHR UEYNO WDFFE TSENS XIEKH LEESA WSOIE IADUL FTTOD SECYV CETOO LNNCI IRORE HFETY EXIIS IRUSD TALSE GISEC NILRX GPAND RAEVT CANAE TIOCM ETXEH RGOCL PEILP ONDUN IEANA XNEEK PELER OOOTT MSDNT TGIX | TERPE ETONI NSSAH AEECO ETNHR UEYNO WDFFE TSENS XIEKH LEESA WSOIE IADUL FTTOD SECYV CETOO LNNCI IRORE HFETY EXIIS IRUSD TALSE GISEC NILRX GPAND RAEVT CANAE TIOCM ETXEH RGOCL PEILP ONDUN IEANA XNEEK PELER OOOTT MSDNT TGIX | THE VIGENERE CIPHER USES A REPEATING KEYWORD OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION FAIL CLOSED IS A POSTURE NOT A SLOGAN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH CERTAINLY | scytale | scytale | null | {
"cols": 8
} | hard | en | 184 | 184 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
porta-v2-0127 | LWXQZNRFVODL | LWXQZNRFVODL | THE DIE IS CAST | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "RENAISSANCE"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0021420 | UKMV DQVN YFEJ KXDC XGTH NWVQ HZOL RMSL EKYZ CNGB IRUZ BLYM TGBR TJFT OEPI VUCG QXQN PMTT EJXV QVVV U | UKMV DQVN YFEJ KXDC XGTH NWVQ HZOL RMSL EKYZ CNGB IRUZ BLYM TGBR TJFT OEPI VUCG QXQN PMTT EJXV QVVV U | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | one_time_pad | one_time_pad | null | {} | hard | en | 81 | 81 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
purple-v2-0083 | AWMSDJKEKVUPMJEHSKLCDDPTABYDKJEJNWBBKASCEEQWJZYOKYMFWJCJQAINNIIGVLXCCXOOXTMAUDD | AWMSDJKEKVUPMJEHSKLCDDPTABYDKJEJNWBBKASCEEQWJZYOKYMFWJCJQAINNIIGVLXCCXOOXTMAUDD | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0112 | SFRORJCSNUZEYOZMSPSSBCVNJRZTNORAVSSNYFCMFABETYWEMYBBTHZBJAVREXKOBQZVWNYZIKZYIHVRUACULODWYJDAIDLZTMYFRYWYBCUGOBBIKNNYHWWFXNSZMAUEPVOBOBFYWEBZYKGGODOWPFG | SFRORJCSNUZEYOZMSPSSBCVNJRZTNORAVSSNYFCMFABETYWEMYBBTHZBJAVREXKOBQZVWNYZIKZYIHVRUACULODWYJDAIDLZTMYFRYWYBCUGOBBIKNNYHWWFXNSZMAUEPVOBOBFYWEBZYKGGODOWPFG | 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 | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
cda-0006542 | TTSRCAEEIHRCTOKSEBCEASBOOHHCAELTPOLTHUUEERIOTSOEMFEEIDSPBONEHIRLMHPUDTPFROITMPVTHYSETETEDIAOSEEANSNVRIHAHAOIATAESMSRLEDRIUFEEIUENEBNTCERCHAUDYNLSRMRTX | TTSRCAEEIHRCTOKSEBCEASBOOHHCAELTPOLTHUUEERIOTSOEMFEEIDSPBONEHIRLMHPUDTPFROITMPVTHYSETETEDIAOSEEANSNVRIHAHAOIATAESMSRLEDRIUFEEIUENEBNTCERCHAUDYNLSRMRTX | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE ARCHITECTURE SHOULD MAKE MISUSE HARDER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | scytale | scytale | null | {
"cols": 6
} | hard | en | 150 | 150 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
kryptos-v2-0224 | BHDYZVPUMSBSUCDEDXQVWQXTCYFBFKKCYTLMZTYBYGFBTLQYWWWHNUVOVYQLVSBBMZRVPQYGDYZFGW | BHDYZVPUMSBSUCDEDXQVWQXTCYFBFKKCYTLMZTYBYGFBTLQYWWWHNUVOVYQLVSBBMZRVPQYGDYZFGW | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
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