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-v2-0659 | ULFNGNCGGVCTOHKYHDEYEOIFDUECPCDQENLUTSXSQPQCAFDXFOCUKYGDQZPOULBVABTCFNREHDPGUQFBZY | ULFNGNCGGVCTOHKYHDEYEOIFDUECPCDQENLUTSXSQPQCAFDXFOCUKYGDQZPOULBVABTCFNREHDPGUQFBZY | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
cda-0008627 | OUOOP TINIP EYNIT UCSHK CABSH READA ITEOS ELEEE OETET SMAHC CCVEW LRPEC SINEA LAECO EYREW NNYIL SOWTH LYXSO HWNTT SSTLO FSMCD HRLAT RDNAE NSTLD EIISC SWEUA BORYH PSHLS HEDTX XOFME SEEMA EWKRR TRRHT ISOFN ELOO | OUOOP TINIP EYNIT UCSHK CABSH READA ITEOS ELEEE OETET SMAHC CCVEW LRPEC SINEA LAECO EYREW NNYIL SOWTH LYXSO HWNTT SSTLO FSMCD HRLAT RDNAE NSTLD EIISC SWEUA BORYH PSHLS HEDTX XOFME SEEMA EWKRR TRRHT ISOFN ELOO | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE BEST LESSONS SHOW WHERE THE METHOD FAILS TODAY | stager_route | stager_route | null | {
"cols": 6
} | hard | en | 174 | 174 | synthetic_educational | null | null | [] | |
cda-0015324 | K r· L ┌ L X X ⌐ ¬· L ⌒ ⌐ X r· Γ· Γ Γ L ─ ¬ X· K ─ ┘· K X L r X· ┌· L ┐· X· ¬ └ Γ· r Γ· ─ ⌐· ┌· ⌐ X K ┌· X· r K X· ┌· L Γ L X L ┌· K· L X r ⌐ ┌· L ⌐· X· └ Γ L X Γ· ¬· ─ ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r· L ⌐ └ ┐· r· ⌐ ¬ L K | K r· L ┌ L X X ⌐ ¬· L ⌒ ⌐ X r· Γ· Γ Γ L ─ ¬ X· K ─ ┘· K X L r X· ┌· L ┐· X· ¬ └ Γ· r Γ· ─ ⌐· ┌· ⌐ X K ┌· X· r K X· ┌· L Γ L X L ┌· K· L X r ⌐ ┌· L ⌐· X· └ Γ L X Γ· ¬· ─ ⌐ K ¬ ⌐ X r· L ─ r ┘· Γ L X ¬ ⌒· ┌· L K· L ┌· X Γ· ─ ¬· K r· L ⌐ └ ┐· r· ⌐ ¬ L K | THE MESSAGE WAS HIDDEN BUT NOT SECURE PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN ATBASH ENCODES BY REVERSING THE ALPHABET | pigpen | pigpen | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
kama-sutra-v2-0097 | RLXCXY VLRLYELM QGYQ XIDLVCIZ ZCRULQ YHLXQZ GYM BLXLQVYQLM QGL GUHGLZQ ELRLEZ CJ QGL IZ HCRLVXDLXQ | RLXCXY VLRLYELM QGYQ XIDLVCIZ ZCRULQ YHLXQZ GYM BLXLQVYQLM QGL GUHGLZQ ELRLEZ CJ QGL IZ HCRLVXDLXQ | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 84 | 98 | cipher_museum | 2.0 | public | null | null |
cda-0021882 | ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w26⟩ ⟨w20⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨w22⟩ ⟨w28⟩ ⟨a11⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w... | ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w26⟩ ⟨w20⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w22⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a25⟩ ⟨w22⟩ ⟨w28⟩ ⟨a11⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | babington | babington | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
gronsfeld-089 | NVDSFQDOINNNBBGU | NVDSFQDOINNNBBGU | LOCK DOWN ALL GATES | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "27182"
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
chaocipher-v2-0162 | JJJZHZGZKXPQPD | JJJZHZGZKXPQPD | LIBERTY OR DEATH | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0080 | LBKZVSSWJIUQZZHZTUMTDLFPOXQMUNELUPSNQNSNBTRRTXDQYGQWEDXCMDRPYXWGFQGITXGTCRTKYV | LBKZVSSWJIUQZZHZTUMTDLFPOXQMUNELUPSNQNSNBTRRTXDQYGQWEDXCMDRPYXWGFQGITXGTCRTKYV | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0218 | DMILDUAKAWBVNDMIWJVCGWXHOCEGTIBBBALHSBQKRCVMALEGKRGYWFANFLPVQHRRQKJTVRWLHBVONA | DMILDUAKAWBVNDMIWJVCGWXHOCEGTIBBBALHSBQKRCVMALEGKRGYWFANFLPVQHRRQKJTVRWLHBVONA | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0012920 | 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 16 5 5 18 18 5 22 9 5 23 1 14 4 18 5 16 18 15 4 21 3 9 2 9 12 9 20 25 13 1 20 20 5 18 9 14 18 5 19 5 1 18 3 8 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 9 19 1 21 19 5 6 21 12 3 12 21 5 | 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 16 5 5 18 18 5 22 9 5 23 1 14 4 18 5 16 18 15 4 21 3 9 2 9 12 9 20 25 13 1 20 20 5 18 9 14 18 5 19 5 1 18 3 8 20 8 5 9 14 4 5 24 15 6 3 15 9 14 3 9 4 5 14 3 5 9 19 1 21 19 5 6 21 12 3 12 21 5 | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE INDEX OF COINCIDENCE IS A USEFUL CLUE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 115 | 115 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0020834 | 67 33 2 14 61 72 58 91 59 11 91 88 48 58 23 35 49 63 58 76 35 1 30 76 46 79 93 57 22 15 48 3 48 2 15 64 62 33 35 58 41 63 60 43 66 68 11 23 30 46 | 67 33 2 14 61 72 58 91 59 11 91 88 48 58 23 35 49 63 58 76 35 1 30 76 46 79 93 57 22 15 48 3 48 2 15 64 62 33 35 58 41 63 60 43 66 68 11 23 30 46 | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | homophonic | homophonic | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
copiale-v3-0083 | B1 L1 R8 K7 S3 R5 M9 A9 C3 M6 G6 L0 L5 X2 C9 B7 C5 O1 K8 H2 U4 K6 R1 O8 X2 J9 I6 B2 C4 O8 B5 U6 A5 T0 Q7 N3 P3 C0 B8 Q1 O6 V4 C1 H2 C4 M8 P6 O0 M6 K7 S3 R7 R5 O8 Q8 C4 I3 G6 N6 R8 K3 R1 O2 C9 U6 Y0 O1 R5 N7 C8 M8 T0 V4 Q7 C9 R7 G6 | B1 L1 R8 K7 S3 R5 M9 A9 C3 M6 G6 L0 L5 X2 C9 B7 C5 O1 K8 H2 U4 K6 R1 O8 X2 J9 I6 B2 C4 O8 B5 U6 A5 T0 Q7 N3 P3 C0 B8 Q1 O6 V4 C1 H2 C4 M8 P6 O0 M6 K7 S3 R7 R5 O8 Q8 C4 I3 G6 N6 R8 K3 R1 O2 C9 U6 Y0 O1 R5 N7 C8 M8 T0 V4 Q7 C9 R7 G6 | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 154 | 230 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0395 | EBMYAQAQNJQAGKJYKYYYDJQYYOTIFKPHMFMFIGGFAPIBYOQJYEIBMNYAQXOTFMYTYNMYUJEGQIYHI | EBMYAQAQNJQAGKJYKYYYDJQYYOTIFKPHMFMFIGGFAPIBYOQJYEIBMNYAQXOTFMYTYNMYUJEGQIYHI | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
null-cipher-v2-0024 | the her each will any line like said has any very each each after right some | the her each will any line like said has any very each each after right some | THE WALLS HAVE EARS | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "first"
} | advanced | en | 61 | 76 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-561 | QET RMAPKT AN NTYSMTP | QET RMAPKT AN NTYSMTP | THE BRIDGE IS SECURED | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "CRYPTOKEY"
} | beginner | en | 18 | 21 | cipher_museum | 0.2 | public | null | null |
trifid-v2-0199 | TOICLCFERDTFEGCLERHUODPIJCTILOUFEQPFCH+INFIDPNFWITHDUJLRAKGHNPGEUOWTSDOHI | TOICLCFERDTFEGCLERHUODPIJCTILOUFEQPFCH+INFIDPNFWITHDUJLRAKGHNPGEUOWTSDOHI | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0157 | QLDIEIVEIIHD | QLDIEIVEIIHD | VENI VIDI VICI | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0342 | U6 K2 Y0 R9 E5 P9 E0 V4 J9 L0 N6 T2 F1 N4 O7 V6 V8 F5 B8 I0 S6 I4 U8 F9 A7 B9 A7 P6 H0 O7 D8 G3 I4 V4 P3 M4 W9 P5 W4 D8 P3 A2 E0 Y8 K8 R7 G3 C7 V8 V3 J3 V4 A7 E3 M4 L0 E1 S6 G2 I0 O9 V0 W4 N2 U6 K2 V6 P5 W6 R7 J4 D0 Z2 P5 V4 B8 | U6 K2 Y0 R9 E5 P9 E0 V4 J9 L0 N6 T2 F1 N4 O7 V6 V8 F5 B8 I0 S6 I4 U8 F9 A7 B9 A7 P6 H0 O7 D8 G3 I4 V4 P3 M4 W9 P5 W4 D8 P3 A2 E0 Y8 K8 R7 G3 C7 V8 V3 J3 V4 A7 E3 M4 L0 E1 S6 G2 I0 O9 V0 W4 N2 U6 K2 V6 P5 W6 R7 J4 D0 Z2 P5 V4 B8 | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 152 | 227 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-101 | 1427 2761 2082 2271 2333 2836 3087 1887 1427 2836 3236 2333 2918 2670 1571 2333 2918 2271 2836 2670 3236 1571 1427 2271 1634 2333 1762 2333 2670 3236 2333 2918 1489 2918 2836 3087 1887 1427 2836 3236 2333 2918 1571 1427 2271 1634 2333 | 1427 2761 2082 2271 2333 2836 3087 1887 1427 2836 3236 2333 2918 2670 1571 2333 2918 2271 2836 2670 3236 1571 1427 2271 1634 2333 1762 2333 2670 3236 2333 2918 1489 2918 2836 3087 1887 1427 2836 3236 2333 2918 1571 1427 2271 1634 2333 | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 188 | 234 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v3-0124 | IWLDVATQBKKTAQVC | IWLDVATQBKKTAQVC | GOLD FROM LEAD | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0184 | 90 81 63 37 76 55 91 90 54 66 91 90 15 44 63 91 124 90 85 61 91 90 58 79 27 18 81 91 90 75 25 66 35 30 84 73 45 91 90 67 47 53 91 90 40 85 91 90 74 72 75 44 91 90 25 23 76 41 91 90 12 89 91 90 53 85 91 90 27 18 81 16 91 90 15 25 91 90 40 85 91 90 61 63 67 91 90 69 20 47 71 76 91 90 53 25 79 77 40 91 | 90 81 63 37 76 55 91 90 54 66 91 90 15 44 63 91 124 90 85 61 91 90 58 79 27 18 81 91 90 75 25 66 35 30 84 73 45 91 90 67 47 53 91 90 40 85 91 90 74 72 75 44 91 90 25 23 76 41 91 90 12 89 91 90 53 85 91 90 27 18 81 16 91 90 15 25 91 90 40 85 91 90 61 63 67 91 90 69 20 47 71 76 91 90 53 25 79 77 40 91 | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 201 | 300 | cipher_museum | 2.0 | public | null | null |
cda-0021979 | GSVR MWVC LUXL RMXR WVMX VRHZ FHVU FOXO FV | GSVR MWVC LUXL RMXR WVMX VRHZ FHVU FOXO FV | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | atbash | atbash | null | {} | medium | en | 34 | 34 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
autokey-v2-0143 | HCUXUQWKUOJIIAPDGWY | HCUXUQWKUOJIIAPDGWY | CODED MESSAGE FOLLOWS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0019700 | 66 36 82 82 29 50 25 77 68 77 68 52 36 50 29 82 59 61 82 11 80 69 66 69 80 61 66 69 52 80 82 68 66 82 68 65 69 57 43 68 57 65 36 68 20 82 66 50 52 52 50 65 36 82 80 50 29 11 82 73 69 76 52 69 50 29 52 50 11 82 29 52 82 77 82 68 61 59 80 82 61 57 82 66 66 82 80 76 80 82 72 59 82 29 52 43 11 50 61 66 80 50 20 59 66 50 69... | 66 36 82 82 29 50 25 77 68 77 68 52 36 50 29 82 59 61 82 11 80 69 66 69 80 61 66 69 52 80 82 68 66 82 68 65 69 57 43 68 57 65 36 68 20 82 66 50 52 52 50 65 36 82 80 50 29 11 82 73 69 76 52 69 50 29 52 50 11 82 29 52 82 77 82 68 61 59 80 82 61 57 82 66 66 82 80 76 80 82 72 59 82 29 52 43 11 50 61 66 80 50 20 59 66 50 69... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION TOMORROW | wallis_cipher | wallis_cipher | null | {} | hard | en | 116 | 116 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
affine-v3-1340 | GHCR AR BHC QKUPIC KV HUYER CNCRBI AB XCQKYCI RCQCIIEPS VKP KRC DCKDFC BK JAIIKFNC BHC DKFABAQEF XERJI GHAQH HENC QKRRCQBCJ BHCY GABH ERKBHCP BHCS IHKUFJ JCQFEPC BHC QEUICI GHAQH AYDCF BHC ICDEPEBAKR | GHCR AR BHC QKUPIC KV HUYER CNCRBI AB XCQKYCI RCQCIIEPS VKP KRC DCKDFC BK JAIIKFNC BHC DKFABAQEF XERJI GHAQH HENC QKRRCQBCJ BHCY GABH ERKBHCP BHCS IHKUFJ JCQFEPC BHC QEUICI GHAQH AYDCF BHC ICDEPEBAKR | 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 | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 167 | 199 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0162 | VJGNKIJVAQWUGGHTQOFKUVCPVUVCTUNGHVVJQUGUWPUVJQWUCPFUQHAGCTUDGHQTGAQWTDKTVJ | VJGNKIJVAQWUGGHTQOFKUVCPVUVCTUNGHVVJQUGUWPUVJQWUCPFUQHAGCTUDGHQTGAQWTDKTVJ | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "22222"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
culper-ring-v3-0062 | 100 998 801 800 819 819 811 804 999 101 998 801 817 808 819 800 808 813 999 998 817 800 806 804 803 999 104 100 998 818 810 808 804 818 999 998 800 801 814 821 804 999 998 804 813 806 811 800 813 803 999 108 998 805 814 820 817 999 998 812 814 813 819 807 818 999 104 998 813 808 813 804 819 804 804 813 999 998 805 814 ... | 100 998 801 800 819 819 811 804 999 101 998 801 817 808 819 800 808 813 999 998 817 800 806 804 803 999 104 100 998 818 810 808 804 818 999 998 800 801 814 821 804 999 998 804 813 806 811 800 813 803 999 108 998 805 814 820 817 999 998 812 814 813 819 807 818 999 104 998 813 808 813 804 819 804 804 813 999 998 805 814 ... | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 252 | 335 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0425 | JXISSYEXBXESEAOJ | JXISSYEXBXESEAOJ | RENDER UNTO CAESAR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0324 | JUJZXMUUMQUVQMGWJYZJPMYUWYAXMUFVHDFUWCVVPUFWYUVZNMWKWYAQMGVBMWPPAVHXU | JUJZXMUUMQUVQMGWJYZJPMYUWYAXMUFVHDFUWCVVPUFWYUVZNMWKWYAQMGVBMWPPAVHXU | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0013433 | 11.33.10 16.35.2 14.47.1 5.34.8 13.48.6 10.1.10 6.1.6 17.6.9 1.6.10 6.44.11 10.37.6 8.37.7 19.10.11 5.28.3 10.14.3 16.7.7 8.45.11 7.46.6 5.7.7 20.11.2 5.11.11 4.7.11 14.11.14 8.6.7 16.7.15 16.1.10 14.11.14 16.9.2 2.31.11 10.37.6 1.49.15 7.8.1 10.16.8 20.2.8 5.32.8 19.32.2 9.35.11 15.31.2 17.35.14 8.46.8 13.20.3 6.49.3 ... | 11.33.10 16.35.2 14.47.1 5.34.8 13.48.6 10.1.10 6.1.6 17.6.9 1.6.10 6.44.11 10.37.6 8.37.7 19.10.11 5.28.3 10.14.3 16.7.7 8.45.11 7.46.6 5.7.7 20.11.2 5.11.11 4.7.11 14.11.14 8.6.7 16.7.15 16.1.10 14.11.14 16.9.2 2.31.11 10.37.6 1.49.15 7.8.1 10.16.8 20.2.8 5.32.8 19.32.2 9.35.11 15.31.2 17.35.14 8.46.8 13.20.3 6.49.3 ... | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT CERTAINLY | book_cipher | book_cipher | null | {} | medium | en | 63 | 63 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
bazeries-v3-0002 | PPKOVROTCQJKVDEWKJ | PPKOVROTCQJKVDEWKJ | CROSS THE RUBICON NOW | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0164 | YYFHOOTPFWGYPTOYWMTAMJ | YYFHOOTPFWGYPTOYWMTAMJ | FLEET ASSEMBLES AT HARBOR | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0311 | ACQFCERCQVSYIR | ACQFCERCQVSYIR | YANKEE DOODLE | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-061 | LVNVUQMZAWXXTKZL | LVNVUQMZAWXXTKZL | PROCEED AS PLANNED | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "2,4,1,6,3,5"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
caesar-v2-0115 | ZFTUFSEBZ EFDFNCFS TFWFOUI OJOFUFFO GPSUZ POF B EBUF XIJDI XJMM MJWF JO JOGBNZ UIF VOJUFE TUBUFT PG BNFSJDB XBT TVEEFOMZ BOE EFMJCFSBUFMZ BUUBDLFE CZ OBWBM BOE BJS GPSDFT PG UIF FNQJSF PG KBQBO | ZFTUFSEBZ EFDFNCFS TFWFOUI OJOFUFFO GPSUZ POF B EBUF XIJDI XJMM MJWF JO JOGBNZ UIF VOJUFE TUBUFT PG BNFSJDB XBT TVEEFOMZ BOE EFMJCFSBUFMZ BUUBDLFE CZ OBWBM BOE BJS GPSDFT PG UIF FNQJSF PG KBQBO | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 1
} | beginner | en | 161 | 193 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0090 | SIIQJESILHFFZHDMMZGIBJEGYKHTMJNFAUMBGFRFZKYNYXWGWERAMRORCLZEGEBXUESIDXUZUYVDUS | SIIQJESILHFFZHDMMZGIBJEGYKHTMJNFAUMBGFRFZKYNYXWGWERAMRORCLZEGEBXUESIDXUZUYVDUS | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
m94-v2-0264 | TNOBHRTVLDDCFKMNMTJQBHAOKQQYFOLUVLWBCZFDHPFZQAISBISJYWYMHEFKGFKVCYYAJTQB | TNOBHRTVLDDCFKMNMTJQBHAOKQQYFOLUVLWBCZFDHPFZQAISBISJYWYMHEFKGFKVCYYAJTQB | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | m94 | m94 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
playfair-146 | MEVBESISIBESQBEMITEHEZHASMBEQEESQBEMITCV | MEVBESISIBESQBEMITEHEZHASMBEQEESQBEMITCV | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 40 | 40 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-1880 | MYMFAGKBJUSEWLIYMLPXZARTFZDAPRVNTTTTBMNTBLMFTCQSVPEQHSGLXEXUEIBKVABQALTUMNTBLUVACPTAAVANUASPRBYDHOXIMMFDYXKPGKHVNCPYXTHWVBBYTPGKPYBPAAJWZDXNAKMIGHUXJAZAGOBJVUYTZTBM | MYMFAGKBJUSEWLIYMLPXZARTFZDAPRVNTTTTBMNTBLMFTCQSVPEQHSGLXEXUEIBKVABQALTUMNTBLUVACPTAAVANUASPRBYDHOXIMMFDYXKPGKHVNCPYXTHWVBBYTPGKPYBPAAJWZDXNAKMIGHUXJAZAGOBJVUYTZTBM | 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 | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1110 | WQBYBUE FEYDJUT XYI JUBUISEFU QJ JXU XUQLUDI QDT SEDVYHCUT JXQJ JXU UQHJX EHRYJI JXU IKD | WQBYBUE FEYDJUT XYI JUBUISEFU QJ JXU XUQLUDI QDT SEDVYHCUT JXQJ JXU UQHJX EHRYJI JXU IKD | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | caesar | caesar | substitution | {
"type": "shift",
"value": 16
} | beginner | en | 74 | 88 | cipher_museum | 2.0 | public | null | null |
typex-v3-0250 | GVMVIOZVPB | GVMVIOZVPB | DOT DASH DOT | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 10 | 10 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v2-0097 | AMGDMFIAINCEQGQPUJSKLPXFANNFVUESYNZNCDAOSABLEVCQEICHNDKSMYVLZCYEMZFDCRFTG | AMGDMFIAINCEQGQPUJSKLPXFANNFVUESYNZNCDAOSABLEVCQEICHNDKSMYVLZCYEMZFDCRFTG | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0021759 | 35 45 30 32 40 70 27 34 68 34 82 81 11 63 72 50 49 68 93 72 70 34 33 82 64 43 35 26 30 14 4 99 50 93 99 80 22 92 26 58 52 23 3 80 33 34 21 80 17 26 46 61 50 63 58 93 81 21 49 63 39 23 11 27 41 11 60 94 48 11 41 50 60 23 4 4 32 43 91 67 22 50 23 35 14 58 48 48 79 48 70 49 61 22 70 33 4 92 80 70 76 78 11 82 39 24 45 3 93... | 35 45 30 32 40 70 27 34 68 34 82 81 11 63 72 50 49 68 93 72 70 34 33 82 64 43 35 26 30 14 4 99 50 93 99 80 22 92 26 58 52 23 3 80 33 34 21 80 17 26 46 61 50 63 58 93 81 21 49 63 39 23 11 27 41 11 60 94 48 11 41 50 60 23 4 4 32 43 91 67 22 50 23 35 14 58 48 48 79 48 70 49 61 22 70 33 4 92 80 70 76 78 11 82 39 24 45 3 93... | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | homophonic | homophonic | null | {} | hard | en | 112 | 112 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
cda-0019787 | . ...- . .-. -.-- / ... -.-- ... - . -- / -. . . -.. ... / .- -. / .... --- -. . ... - / - .... .-. . .- - / -- --- -.. . .-.. / - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. / -.-. .. .--. .... . .-. - . -..- ... | . ...- . .-. -.-- / ... -.-- ... - . -- / -. . . -.. ... / .- -. / .... --- -. . ... - / - .... .-. . .- - / -- --- -.. . .-.. / - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. / -.-. .. .--. .... . .-. - . -..- ... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT ALWAYS | morse_code | morse_code | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
monoalphabetic-v2-0954 | ET ES OATTAQ TL QAJHEK SEIAKT HKR OA TDLUCDT H BLLI TDHK TL SMAHG HKR QAJLVA HII RLUOT | ET ES OATTAQ TL QAJHEK SEIAKT HKR OA TDLUCDT H BLLI TDHK TL SMAHG HKR QAJLVA HII RLUOT | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "HONOR"
} | beginner | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-270 | PQQYPBTQWEQQMD | PQQYPBTQWEQQMD | RALLY AT DAWN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CRYPTIC"
} | advanced | en | 14 | 14 | cipher_museum | 0.2 | public | null | null |
chaocipher-v3-0200 | CHNKMCXWSEBBJNROJUCJFHQOGVKGKRMJDWPFGQHNLMDWAAZFVBPDSCOCMKNKIQWHYECMUZBYBJFWFICNWOEVITEMICNRSQEGPNTGBMHRMQFPCLPKKUGOMFUSGYRMMUEOZYRWWSYMVFMDJAETWGOHQPNWWAHGZQWJTPALL | CHNKMCXWSEBBJNROJUCJFHQOGVKGKRMJDWPFGQHNLMDWAAZFVBPDSCOCMKNKIQWHYECMUZBYBJFWFICNWOEVITEMICNRSQEGPNTGBMHRMQFPCLPKKUGOMFUSGYRMMUEOZYRWWSYMVFMDJAETWGOHQPNWWAHGZQWJTPALL | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1403 | UGVWV EWKKSYW XGDDGOK | UGVWV EWKKSYW XGDDGOK | CODED MESSAGE FOLLOWS | caesar | caesar | substitution | {
"type": "shift",
"value": 18
} | beginner | en | 19 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0018992 | 11 50 25 80 68 65 36 68 29 11 66 80 50 25 80 68 65 36 76 80 82 72 59 82 29 52 50 82 61 82 73 65 69 61 82 61 50 77 65 57 82 52 50 65 36 82 80 61 36 50 61 66 69 80 50 52 68 57 52 50 65 36 82 80 61 68 80 82 66 82 68 52 36 82 80 61 29 69 66 65 80 69 66 82 52 66 50 69 29 66 36 82 65 57 68 43 76 68 50 80 52 50 65 36 82 80 82... | 11 50 25 80 68 65 36 68 29 11 66 80 50 25 80 68 65 36 76 80 82 72 59 82 29 52 50 82 61 82 73 65 69 61 82 61 50 77 65 57 82 52 50 65 36 82 80 61 36 50 61 66 69 80 50 52 68 57 52 50 65 36 82 80 61 68 80 82 66 82 68 52 36 82 80 61 29 69 66 65 80 69 66 82 52 66 50 69 29 66 36 82 65 57 68 43 76 68 50 80 52 50 65 36 82 80 82... | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | wallis_cipher | wallis_cipher | null | {} | hard | en | 142 | 142 | 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-0017296 | BAABA AABBB AABAA ABBBA ABABA AAAAA BABBA AABAB AAAAA ABAAA BAAAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA BAAAB ABBBA AAAAA ABAAA BAAAA BAAAB ABBAB AABAB ABABA AABAA BAABA BAABA AABAA BAAAA BAAAB BAAAB ABAAA ABABB BAABB ABABA BAABA AAAAA ABBAA AABAA ABBAB BAABB BAAAB ABABA BABBA | BAABA AABBB AABAA ABBBA ABABA AAAAA BABBA AABAB AAAAA ABAAA BAAAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AABAA ABBAA AAABA BAAAA BABBA ABBBA BAABA BAAAB ABBBA AAAAA ABAAA BAAAA BAAAB ABBAB AABAB ABABA AABAA BAABA BAABA AABAA BAAAA BAAAB BAAAB ABAAA ABABB BAABB ABABA BAABA AAAAA ABBAA AABAA ABBAB BAABB BAAAB ABABA BABBA | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | bacon_cipher | bacon_cipher | null | {} | hard | en | 265 | 265 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
diana-v2-0602 | URTWCKVMNYKVLMSYTAOKSQGAJZXULEEJZBEOFAWSDILAALODSNIKMKKXRXNLPUUUNMXPCABZTWCXIN | URTWCKVMNYKVLMSYTAOKSQGAJZXULEEJZBEOFAWSDILAALODSNIKMKKXRXNLPUUUNMXPCABZTWCXIN | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-256 | KSHWYIZAXCLVLQVALG | KSHWYIZAXCLVLQVALG | SEND REINFORCEMENTS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SOUTHERN"
} | intermediate | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0018193 | 44 23 15 25 11 43 24 43 25 24 15 53 11 32 24 33 11 44 24 34 33 21 24 33 14 43 42 15 35 15 11 44 15 14 44 42 24 22 42 11 32 43 24 33 13 24 35 23 15 42 44 15 53 44 | 44 23 15 25 11 43 24 43 25 24 15 53 11 32 24 33 11 44 24 34 33 21 24 33 14 43 42 15 35 15 11 44 15 14 44 42 24 22 42 11 32 43 24 33 13 24 35 23 15 42 44 15 53 44 | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | polybius | polybius | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
playfair-v3-0121 | AEQORGTFRKIZKZENDFFELOONKRFD | AEQORGTFRKIZKZENDFFELOONKRFD | DONT FIRE TILL YOU SEE THE WHITES | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0449 | BWZOHAVJIQYBPQDBGBGUPZUUFQWIOBGJHDEYBXBUYLOEYRATVDTQVTZDSTCJUPE | BWZOHAVJIQYBPQDBGBGUPZUUFQWIOBGJHDEYBXBUYLOEYRATVDTQVTZDSTCJUPE | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 63 | 63 | cipher_museum | 2.0 | public | null | null |
cda-0018923 | DEDDROGWUJBLBLJURTAHFVMPOKQRANZWFCHLMTAIOLPKKPEWEQVOPLRHOMGEZBMOXJNWXOQTRAEPXCDOTIEWIEPWSPECCOXDYRAYI | DEDDROGWUJBLBLJURTAHFVMPOKQRANZWFCHLMTAIOLPKKPEWEQVOPLRHOMGEZBMOXJNWXOQTRAEPXCDOTIEWIEPWSPECCOXDYRAYI | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | one_time_pad | one_time_pad | null | {} | hard | en | 101 | 101 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
geheimschreiber-v3-0157 | BJOBEVOMTMRUCNIUZDTTURXFRUFVGMXGBXTRODHTAXNNCWNIXZXHXIYJBQWMEJGOQILHOKSLH | BJOBEVOMTMRUCNIUZDTTURXFRUFVGMXGBXTRODHTAXNNCWNIXZXHXIYJBQWMEJGOQILHOKSLH | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
wheatstone-024 | QMRPQIJJIT | QMRPQIJJIT | TRUST NO ONE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "WHEATSTONE"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
rail-fence-v3-0483 | WSSHAETIATTTHRTDAASTUIOEKODCDURINNTNBBNWUUALFGEORAEOBHFENHXEYAEODEIATVFLU | WSSHAETIATTTHRTDAASTUIOEKODCDURINNTNBBNWUUALFGEORAEOBHFENHXEYAEODEIATVFLU | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0237 | 425220222195143102295298624 | 425220222195143102295298624 | THE REDCOATS ARE COMING | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
diana-v3-0135 | ABRKUVAKOALPCLAXAQHPH | ABRKUVAKOALPCLAXAQHPH | SONS OF LIBERTY ASSEMBLE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
hill-v2-0399 | MFOADMSYGFNU | MFOADMSYGFNU | KNOW THYSELF | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0020 | JFLMPQLYHBTHYBLQAPBDJI | JFLMPQLYHBTHYBLQAPBDJI | EXTRACTION POINT CHANGED | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0105 | 14 41 22 82 88 52 66 45 22 51 73 35 72 25 53 43 32 25 69 66 14 44 36 65 75 72 73 66 32 30 24 51 14 72 53 21 88 66 30 87 65 82 71 22 23 88 51 73 44 57 21 82 72 18 22 15 21 32 45 14 41 88 22 16 75 73 88 82 30 13 65 23 45 57 51 34 56 32 44 14 43 22 21 88 | 14 41 22 82 88 52 66 45 22 51 73 35 72 25 53 43 32 25 69 66 14 44 36 65 75 72 73 66 32 30 24 51 14 72 53 21 88 66 30 87 65 82 71 22 23 88 51 73 44 57 21 82 72 18 22 15 21 32 45 14 41 88 22 16 75 73 88 82 30 13 65 23 45 57 51 34 56 32 44 14 43 22 21 88 | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 168 | 251 | cipher_museum | 2.0 | public | null | null |
diana-v3-0203 | ABCLIHHAOARAWQOMLVIHSLLKPEDLGHRYFPDNLWKVMSWBNJBPDXHRWINIZIEJMSTPBSBEUDFXIUPTSLLEZWSTAHQPUVXFLMOMNDMCQLINJOWXUQAWDYQCGTSEFROMPHPJAVIIFYHBYFEHAWALVLEKEQKULEUKQLPEXGHTRENYKP | ABCLIHHAOARAWQOMLVIHSLLKPEDLGHRYFPDNLWKVMSWBNJBPDXHRWINIZIEJMSTPBSBEUDFXIUPTSLLEZWSTAHQPUVXFLMOMNDMCQLINJOWXUQAWDYQCGTSEFROMPHPJAVIIFYHBYFEHAWALVLEKEQKULEUKQLPEXGHTRENYKP | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
m209-v3-0155 | KHQOOCZMASIYMVBYUQEEZRSOGJRQZBPBJPKLEWYOKUZQPJKMEHYRDPMUBQZAAOOALLCIZQAM | KHQOOCZMASIYMVBYUQEEZRSOGJRQZBPBJPKLEWYOKUZQPJKMEHYRDPMUBQZAAOOALLCIZQAM | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-v2-0001 | BAABA AABBB AABAA AAABB ABAAA AABAA ABAAA BAAAB AAABA AAAAA BAAAB BAABA | BAABA AABBB AABAA AAABB ABAAA AABAA ABAAA BAAAB AAABA AAAAA BAAAB BAABA | THE DIE IS CAST | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 60 | 71 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0233 | XFVOELATAVZAVBIZRFMVXPGWTLDSEJPHLUTCTEJWPESUQVHLIGEMRCCJZCWLCMWHOOFKZMDNIRTCRDLQIHUVJYGYPTCEAOQFVIIZKNNUXMTFZGBSPYWIRCZLVQFYVYQXVMGHZUGKJWDASXX | XFVOELATAVZAVBIZRFMVXPGWTLDSEJPHLUTCTEJWPESUQVHLIGEMRCCJZCWLCMWHOOFKZMDNIRTCRDLQIHUVJYGYPTCEAOQFVIIZKNNUXMTFZGBSPYWIRCZLVQFYVYQXVMGHZUGKJWDASXX | FOURSCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH ON THIS CONTINENT A NEW NATION CONCEIVED IN LIBERTY AND DEDICATED TO THE PROPOSITION THAT ALL MEN ARE CREATED EQUAL | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-it-027 | ERIVMVEEECRECNNIO | ERIVMVEEECRECNNIO | VINCERE E VINCEREMO | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | it | 17 | 17 | cipher_museum | 0.2 | public | null | null |
copiale-v2-0167 | E5 G3 G3 U2 M4 M2 Y8 Q3 G3 H1 Y6 E1 J0 I5 L7 N7 F6 F7 T4 Q2 K4 U4 G3 N3 U4 O9 B7 K2 L2 G7 E5 R3 A3 M8 K1 Z3 L5 A3 E8 I5 N3 Y6 L1 E8 E1 A2 M7 G3 O7 | E5 G3 G3 U2 M4 M2 Y8 Q3 G3 H1 Y6 E1 J0 I5 L7 N7 F6 F7 T4 Q2 K4 U4 G3 N3 U4 O9 B7 K2 L2 G7 E5 R3 A3 M8 K1 Z3 L5 A3 E8 I5 N3 Y6 L1 E8 E1 A2 M7 G3 O7 | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 98 | 146 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0345 | 60 16 01 03 11 01 07 05 03 15 14 20 01 09 14 19 02 12 21 05 16 18 09 14 20 19 06 15 18 60 14 05 23 20 15 18 16 05 04 15 07 21 09 04 01 14 03 05 19 25 19 20 05 13 04 05 12 09 22 05 18 63 01 04 13 09 18 01 12 19 13 09 20 08 14 15 23 | 60 16 01 03 11 01 07 05 03 15 14 20 01 09 14 19 02 12 21 05 16 18 09 14 20 19 06 15 18 60 14 05 23 20 15 18 16 05 04 15 07 21 09 04 01 14 03 05 19 25 19 20 05 13 04 05 12 09 22 05 18 63 01 04 13 09 18 01 12 19 13 09 20 08 14 15 23 | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 154 | 230 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0304 | LSOOYVDKKMUDQYIXFJVFCTSFBTUBALTEVATPEFBCMXGSJIRHDABSOGFFYVEKYKUPYFNHTVWSERYBUNQCSVMGAVMNHQTAJNEHVDKKQBDFDYWFJKBYRMFOYESRBAFSQXIWVBZUYYQVOTMOPZOCPMQWQOITEYSVOEFXKRUOD | LSOOYVDKKMUDQYIXFJVFCTSFBTUBALTEVATPEFBCMXGSJIRHDABSOGFFYVEKYKUPYFNHTVWSERYBUNQCSVMGAVMNHQTAJNEHVDKKQBDFDYWFJKBYRMFOYESRBAFSQXIWVBZUYYQVOTMOPZOCPMQWQOITEYSVOEFXKRUOD | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0371 | FVOMOHCIKYOQCWAWPYQYPEECUGYVCPOYQVUFNGICBIOLBPYDERCIXANIRIROHADDJPIBILMOLKOAXBPECBIMIHILACESVETDOPETIPMAAXUWNULPIGXAWCOVOLAKYTEILCQFADFASABEHCCAXDOULKALEGCIMTONIPOAPOJTBOWCICR | FVOMOHCIKYOQCWAWPYQYPEECUGYVCPOYQVUFNGICBIOLBPYDERCIXANIRIROHADDJPIBILMOLKOAXBPECBIMIHILACESVETDOPETIPMAAXUWNULPIGXAWCOVOLAKYTEILCQFADFASABEHCCAXDOULKALEGCIMTONIPOAPOJTBOWCICR | 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 | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
bifid-es-008 | IQIGRDASODPDIBBVQOUVU | IQIGRDASODPDIBBVQOUVU | PATRIA LIBERTAD O MUERTE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | es | 21 | 21 | cipher_museum | 0.2 | public | null | null |
null-cipher-053 | that each have think utni down long srai this and come ioua would | that each have think utni down long srai this and come ioua would | THE KING IS DEAD | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 53 | 65 | cipher_museum | 0.2 | public | null | null |
cda-0015834 | 2.1.4 7.4.3 7.4.5 20.5.10 15.3.10 3.4.2 5.3.4 12.1.10 4.6.9 11.6.8 20.1.5 12.3.1 5.4.10 8.3.4 14.6.8 8.5.4 1.2.7 17.2.8 10.2.9 15.2.8 17.3.7 12.2.6 7.6.6 15.5.9 10.5.7 8.1.1 5.5.1 14.4.9 8.5.8 19.6.9 11.6.10 8.4.9 3.1.4 18.5.10 11.2.5 1.6.2 19.5.3 3.5.2 4.3.1 17.6.3 13.5.10 12.5.6 8.5.1 2.4.3 17.2.7 5.1.6 4.5.5 11.5.6 ... | 2.1.4 7.4.3 7.4.5 20.5.10 15.3.10 3.4.2 5.3.4 12.1.10 4.6.9 11.6.8 20.1.5 12.3.1 5.4.10 8.3.4 14.6.8 8.5.4 1.2.7 17.2.8 10.2.9 15.2.8 17.3.7 12.2.6 7.6.6 15.5.9 10.5.7 8.1.1 5.5.1 14.4.9 8.5.8 19.6.9 11.6.10 8.4.9 3.1.4 18.5.10 11.2.5 1.6.2 19.5.3 3.5.2 4.3.1 17.6.3 13.5.10 12.5.6 8.5.1 2.4.3 17.2.7 5.1.6 4.5.5 11.5.6 ... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | arnold_andre | arnold_andre | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0017236 | 13.5.4 1.2.3 14.5.8 12.2.1 3.2.7 8.1.1 10.1.2 2.3.4 11.2.7 4.5.1 9.6.9 7.2.10 6.5.2 6.2.10 12.1.8 4.1.3 17.3.8 16.5.5 6.1.7 10.4.2 19.5.9 13.1.6 13.1.1 17.3.8 6.1.9 16.1.5 8.5.3 18.6.10 10.2.10 19.2.5 13.5.10 15.3.1 4.6.8 16.5.9 17.4.6 19.3.7 3.2.8 9.6.6 1.2.8 9.4.7 19.6.9 18.6.6 10.5.6 14.4.8 5.1.9 9.3.8 8.3.6 16.2.8 ... | 13.5.4 1.2.3 14.5.8 12.2.1 3.2.7 8.1.1 10.1.2 2.3.4 11.2.7 4.5.1 9.6.9 7.2.10 6.5.2 6.2.10 12.1.8 4.1.3 17.3.8 16.5.5 6.1.7 10.4.2 19.5.9 13.1.6 13.1.1 17.3.8 6.1.9 16.1.5 8.5.3 18.6.10 10.2.10 19.2.5 13.5.10 15.3.1 4.6.8 16.5.9 17.4.6 19.3.7 3.2.8 9.6.6 1.2.8 9.4.7 19.6.9 18.6.6 10.5.6 14.4.8 5.1.9 9.3.8 8.3.6 16.2.8 ... | A STRONG CLAIM NEEDS STRONG EVIDENCE THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | arnold_andre | arnold_andre | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
purple-109 | KEJMVQVCNHRKSPPHNNKNQMVRETMAVBLVQHJXRPTAUFWRBGWCFQYSABO | KEJMVQVCNHRKSPPHNNKNQMVRETMAVBLVQHJXRPTAUFWRBGWCFQYSABO | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | purple | purple | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
chaocipher-v3-0257 | YMAPRLPCLFFVGLFPNMMCHYFKNTKSTBLEHIKANHAPZKNMSCEUHVMKQHIGPXHQBNLEEOWOIIL | YMAPRLPCLFFVGLFPNMMCHYFKNTKSTBLEHIKANHAPZKNMSCEUHVMKQHIGPXHQBNLEEOWOIIL | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0222 | PXKDFCACXTXQSTKIHSBMYNLDUBSBOFNGFNWUBJBZSPZHGXDUYSNMCXWKONKNPUCHEBKYEOYCYTLFJYURPG | PXKDFCACXTXQSTKIHSBMYNLDUBSBOFNGFNWUBJBZSPZHGXDUYSNMCXWKONKNPUCHEBKYEOYCYTLFJYURPG | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
purple-v2-0201 | YFNCSEZAUCRVUPOYCOKULRQLSLTCXDFNKFRVKUDHFAYXEAKOSEVLSBMWIRXTGPSFARNNBBMSSQKUR | YFNCSEZAUCRVUPOYCOKULRQLSLTCXDFNKFRVKUDHFAYXEAKOSEVLSBMWIRXTGPSFARNNBBMSSQKUR | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0605 | DIZEESNSUDRUEDTSRLTLEECBISLRTHECTCAWSUZHLHRESTTZHLELEZUUNABTNURSENUWNNTAMDEDM | DIZEESNSUDRUEDTSRLTLEECBISLRTHECTCAWSUZHLHRESTTZHLELEZUUNABTNURSENUWNNTAMDEDM | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0231 | MTOXUHOWURRFYSVDUDXEKJRYQOHAUZOVMEKXUOLLEXFAXYDWGYNDOFUHSETHPAYYLMUWDVIWGIPPCUJJHYDO | MTOXUHOWURRFYSVDUDXEKJRYQOHAUZOVMEKXUOLLEXFAXYDWGYNDOFUHSETHPAYYLMUWDVIWGIPPCUJJHYDO | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0082 | XLMTIVHH HSZOO NZPV ML OZD IVHKVXGRMT ZM VHGZYORHSNVMG LU IVORTRLM LI KILSRYRGRMT GSV UIVV VCVIXRHV | XLMTIVHH HSZOO NZPV ML OZD IVHKVXGRMT ZM VHGZYORHSNVMG LU IVORTRLM LI KILSRYRGRMT GSV UIVV VCVIXRHV | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 85 | 99 | cipher_museum | 2.0 | public | null | null |
purple-113 | JMMPSTDMGOAXLJYJNDEJHZBDEGYBCVVPSFCAAQJWRPKNDGRGSBILMFKSQQLR | JMMPSTDMGOAXLJYJNDEJHZBDEGYBCVVPSFCAAQJWRPKNDGRGSBILMFKSQQLR | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | purple | purple | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0222 | XRNISFWOMMXRBSGVFBLGGGQOBMGRIOBOIVCSOFRFIGGTAFLFMFKHGGVRVSRMOKCMGNRTDTNAKSDKYABWAWKCAIQOHZBNRGDFHNXGCSOVGVVNEYDIOUYVTIEANRBONWBNWLHNIDXNWCHSAWV | XRNISFWOMMXRBSGVFBLGGGQOBMGRIOBOIVCSOFRFIGGTAFLFMFKHGGVRVSRMOKCMGNRTDTNAKSDKYABWAWKCAIQOHZBNRGDFHNXGCSOVGVVNEYDIOUYVTIEANRBONWBNWLHNIDXNWCHSAWV | 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 | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cda-0019100 | DZEH / GAH / GAH / A-KHA / GAH / MOASI / A-KHA / GAH / GAH / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA-CHEE / TSAH / BE / BE / DZEH / THAN-ZIE / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA... | DZEH / GAH / GAH / A-KHA / GAH / MOASI / A-KHA / GAH / GAH / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA-CHEE / TSAH / BE / BE / DZEH / THAN-ZIE / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA... | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | navajo_code | navajo_code | null | {} | hard | en | 189 | 189 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
bazeries-v2-0370 | ECCTNCPTQNRMRYRNGOFNYLVOLTJYFGMOUSGYVINVHYVOTECYVFNYONHTTYVOONPKTNFTVOGFFTLYYVORLNVOGVORVUYMOFNGLNYVCFUGPEFTTYETTIYLRYCCOCYIGFNMEMLPMCPT | ECCTNCPTQNRMRYRNGOFNYLVOLTJYFGMOUSGYVINVHYVOTECYVFNYONHTTYVOONPKTNFTVOGFFTLYYVORLNVOGVORVUYMOFNGLNYVCFUGPEFTTYETTIYLRYCCOCYIGFNMEMLPMCPT | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
rail-fence-298 | WRTWYOFELEHOYTHEEAORHRETTOGEAEOHFTEWRETLHEHFEROAEDLHYOHRHRTUSRELHHLETTOEDKTVOLERDTTTDDLSEHDTAERHRRYRNSEDAGOFRHSSNLEOTADTWENEEIOOLOIANFNDI | WRTWYOFELEHOYTHEEAORHRETTOGEAEOHFTEWRETLHEHFEROAEDLHYOHRHRTUSRELHHLETTOEDKTVOLERDTTTDDLSEHDTAERHRRYRNSEDAGOFRHSSNLEOTADTWENEEIOOLOIANFNDI | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 6
} | intermediate | en | 137 | 137 | cipher_museum | 0.2 | public | null | null |
cda-0018700 | troop house extra other notes exact takes input mixed early place again depot incur stage takes hours enter often raids exact track incur cross array | troop house extra other notes exact takes input mixed early place again depot incur stage takes hours enter often raids exact track incur cross array | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | 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. |
tap-code-v3-0049 | .... .... .. ... . ..... .... .... .. ... .. .... ... ... .... .. . ..... . .... ... . .. .... ... ... . ..... .... ... .... .... ... .... ... .... . .... .. . .. .... .... .. ... .. . . .... .... . .. . . ... . . . . ... ... . . . ..... . . . . . ..... | .... .... .. ... . ..... .... .... .. ... .. .... ... ... .... .. . ..... . .... ... . .. .... ... ... . ..... .... ... .... .... ... .... ... .... . .... .. . .. .... .... .. ... .. . . .... .... . .. . . ... . . . . ... ... . . . ..... . . . . . ..... | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 390 | 683 | cipher_museum | 2.0 | public | null | null |
porta-v3-0331 | JWXRZRRTSZEEIFVTSTND | JWXRZRRTSZEEIFVTSTND | THE ALCHEMIST SUCCEEDS | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bacon-cipher-008 | AABBB ABBAB ABABA AAABB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA | AABBB ABBAB ABABA AAABB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA | HOLD POSITION | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 60 | 71 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-236 | IEFUKFBLXMCKOLQQAFMXLYTICLZURJDGBENLXWIJPVEKCSTDZHEJCZHLIPOXFUVTIAEOGJPMWUAXKSHGFPYGITUPNRFAETGQXFFXHBIXNHJYJNCSMSUCDRWCPGDQFTDGAOSXJUYLVVYKWVLFNHRRD | IEFUKFBLXMCKOLQQAFMXLYTICLZURJDGBENLXWIJPVEKCSTDZHEJCZHLIPOXFUVTIAEOGJPMWUAXKSHGFPYGITUPNRFAETGQXFFXHBIXNHJYJNCSMSUCDRWCPGDQFTDGAOSXJUYLVVYKWVLFNHRRD | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
argenti-v2-0253 | 75 20 11 57 39 28 71 33 46 63 65 42 | 75 20 11 57 39 28 71 33 46 63 65 42 | THE DIE IS CAST | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 24 | 35 | cipher_museum | 2.0 | public | null | null |
cda-0014537 | --. --- --- -.. / . -.. ..- -.-. .- - .. --- -. .- .-.. / - --- --- .-.. ... / . -..- .--. .-.. .- .. -. / - .... . .. .-. / .-.. .. -- .. - ... | --. --- --- -.. / . -.. ..- -.-. .- - .. --- -. .- .-.. / - --- --- .-.. ... / . -..- .--. .-.. .- .. -. / - .... . .. .-. / .-.. .. -- .. - ... | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | morse_code | morse_code | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0022153 | ZHXBG ZOVRH ZILWF HVWYB HKZIG ZMHGL VMXIB KGNVH HZTVH NLWVI MVMXI BKGRL MRHML GYILP VMYBO VGGVI UIVJF VMXBW RUURV ZMWSV OONZM RMGIL WFXVW KFYOR XPVBX IBKGL TIZKS BRMMR MVGVV MHVEV MGBHR C | ZHXBG ZOVRH ZILWF HVWYB HKZIG ZMHGL VMXIB KGNVH HZTVH NLWVI MVMXI BKGRL MRHML GYILP VMYBO VGGVI UIVJF VMXBW RUURV ZMWSV OONZM RMGIL WFXVW KFYOR XPVBX IBKGL TIZKS BRMMR MVGVV MHVEV MGBHR C | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | atbash | atbash | null | {} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
wallis-cipher-v2-0005 | 90 37 81 26 87 60 63 86 91 90 81 82 79 87 34 48 56 24 91 | 90 37 81 26 87 60 63 86 91 90 81 82 79 87 34 48 56 24 91 | CAVALRY ADVANCES | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
cda-0002594 | QIFVT FWMFA COEVF TTPEY DMDJM MUCOB UXFVK OSITI CSDLU LGNFW TEIFX ETLKE EIOFW UOSUW GDVVF | QIFVT FWMFA COEVF TTPEY DMDJM MUCOB UXFVK OSITI CSDLU LGNFW TEIFX ETLKE EIOFW UOSUW GDVVF | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE MESSAGE WAS HIDDEN BUT NOT SECURE | gronsfeld | gronsfeld | null | {
"key": "141421"
} | medium | en | 75 | 75 | synthetic_educational | null | null | [
"kasiski_examination",
"digit_key_brute_force"
] | Gronsfeld: Vigenère variant with a digit-only key (0–9 per position). |
cda-0013394 | 18.4.2 3.2.4 13.4.3 5.2.9 3.6.7 8.2.2 3.6.2 16.5.7 2.6.10 10.2.8 3.5.1 18.3.1 2.1.2 8.1.2 3.6.6 15.6.3 2.4.2 3.3.2 12.5.2 1.4.5 17.6.5 5.1.2 7.1.1 7.2.4 8.5.1 17.2.5 18.2.6 17.1.5 19.5.3 4.6.4 6.3.3 14.4.7 6.6.6 8.6.8 12.3.2 10.2.1 16.1.7 4.1.6 14.5.7 2.6.4 14.3.5 6.1.1 17.5.2 10.4.6 15.2.4 14.2.4 7.4.2 15.4.5 8.1.4 20... | 18.4.2 3.2.4 13.4.3 5.2.9 3.6.7 8.2.2 3.6.2 16.5.7 2.6.10 10.2.8 3.5.1 18.3.1 2.1.2 8.1.2 3.6.6 15.6.3 2.4.2 3.3.2 12.5.2 1.4.5 17.6.5 5.1.2 7.1.1 7.2.4 8.5.1 17.2.5 18.2.6 17.1.5 19.5.3 4.6.4 6.3.3 14.4.7 6.6.6 8.6.8 12.3.2 10.2.1 16.1.7 4.1.6 14.5.7 2.6.4 14.3.5 6.1.1 17.5.2 10.4.6 15.2.4 14.2.4 7.4.2 15.4.5 8.1.4 20... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | arnold_andre | arnold_andre | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
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