id stringlengths 7 52 | text stringlengths 6 2.11k | ciphertext stringlengths 6 2.11k | plaintext stringlengths 6 282 | label stringclasses 81
values | cipher stringclasses 81
values | cipher_family stringclasses 13
values | key unknown | difficulty stringclasses 7
values | language stringclasses 8
values | text_length int64 6 1.09k | length int64 6 1.28k | source stringclasses 2
values | dataset_version stringclasses 2
values | split stringclasses 1
value | attack_methods listlengths 0 3 ⌀ | educational_note stringclasses 32
values |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
rail-fence-v3-0045 | SATRNETSARFMEOPWRSOM | SATRNETSARFMEOPWRSOM | STEAM POWER TRANSFORMS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0005429 | DTFOS IINPN LSSSE AGROP EDTCD ETKOC UBCOT CTFCE ATNSA YGHWS IECFH INOSF ANHRI ALDPU OLNPR YAPEA AUINO NEUTW EYOIO IORTO CTARR ANNRL NG | DTFOS IINPN LSSSE AGROP EDTCD ETKOC UBCOT CTFCE ATNSA YGHWS IECFH INOSF ANHRI ALDPU OLNPR YAPEA AUINO NEUTW EYOIO IORTO CTARR ANNRL NG | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION FAIL CLOSED IS A POSTURE NOT A SLOGAN CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | scytale | scytale | null | {
"cols": 4
} | hard | en | 112 | 112 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
cda-0012331 | WOL-LA-CHEE / DIBEH-YAZZIE / WOL-LA-CHEE / TSAH / THAN-ZIE / NO-DA-IH / GAH / TKIN / TSAH / AH-JAH / SHUSH / GAH / A-KHA / KLIZZIE / DZEH / DZEH / TSAH / TKIN / AH-JAH / NA-AS-TSO-SI / WOL-LA-CHEE / GLOE-IH / TKIN / THAN-ZIE /... | WOL-LA-CHEE / DIBEH-YAZZIE / WOL-LA-CHEE / TSAH / THAN-ZIE / NO-DA-IH / GAH / TKIN / TSAH / AH-JAH / SHUSH / GAH / A-KHA / KLIZZIE / DZEH / DZEH / TSAH / TKIN / AH-JAH / NA-AS-TSO-SI / WOL-LA-CHEE / GLOE-IH / TKIN / THAN-ZIE /... | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | navajo_code | navajo_code | null | {} | hard | en | 214 | 214 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
chinese-telegraph-v2-0054 | 0012 1255 0792 1821 0918 0347 1421 0472 0285 1024 0918 1421 0918 0792 0012 0156 0156 1255 0918 1346 1346 0285 1346 1421 0472 0285 1255 0012 1024 1024 0012 0472 0012 0856 0856 0918 0156 0667 1421 0918 0856 0538 0408 0472 1421 0012 0074 1346 0918 0729 1503 1421 0285 1346 0538 0729 0285 0856 0156 0285 0538 1346 0538 0792 ... | 0012 1255 0792 1821 0918 0347 1421 0472 0285 1024 0918 1421 0918 0792 0012 0156 0156 1255 0918 1346 1346 0285 1346 1421 0472 0285 1255 0012 1024 1024 0012 0472 0012 0856 0856 0918 0156 0667 1421 0918 0856 0538 0408 0472 1421 0012 0074 1346 0918 0729 1503 1421 0285 1346 0538 0729 0285 0856 0156 0285 0538 1346 0538 0792 ... | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | chinese_telegraph | chinese_telegraph | codebook | {
"type": "none",
"value": null
} | expert | en | 300 | 374 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0108 | AXAAXGFFAXGXFGGXDADGAXAADAGXGXGDDAADADAGXD | AXAAXGFFAXGXFGGXDADGAXAADAGXGXGDDAADADAGXD | THE CASTLE IS SURROUNDED | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 42 | 42 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0520 | AAGDADFGDAADXGAGADADGGDGXAGXDXAGAGFXGFGA | AAGDADFGDAADXGAGADADGGDGXAGXDXAGAGFXGFGA | STEAM POWER TRANSFORMS | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
typex-218 | DGXSDECLFZWIIPFYDYUDLYJKVLFYETTDWFCVXUCWZPVAC | DGXSDECLFZWIIPFYDYUDLYJKVLFYETTDWFCVXUCWZPVAC | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | typex | typex | machine | {
"type": "keyword",
"value": "SECRET"
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
solitaire-v2-0005 | UUBSCJVSZLRZZSZ | UUBSCJVSZLRZZSZ | CAVALRY ADVANCES | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0013702 | ZVSY MJYP EKMQ VPSX FIDW WXGP PMNM PROB PGIW KVZV SEIV NNEL ACAS DACK HZIO TEHM ZXAL WUQI UTLF KJSU | ZVSY MJYP EKMQ VPSX FIDW WXGP PMNM PROB PGIW KVZV SEIV NNEL ACAS DACK HZIO TEHM ZXAL WUQI UTLF KJSU | THE VIGENERE CIPHER USES A REPEATING KEYWORD THE BEST LESSONS SHOW WHERE THE METHOD FAILS NEVER | running_key | running_key | null | {} | hard | en | 80 | 80 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
vic-v2-0409 | 86292218386908220832853408291568680486085838090936898945918082493237958945686959048940293716922894918589 | 86292218386908220832853408291568680486085838090936898945918082493237958945686959048940293716922894918589 | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 104 | 104 | cipher_museum | 2.0 | public | null | null |
pigpen-036 | ⌐ ¬• ¬• ╳ ┬ ┼ ╳• ┤• ┐• ¬• ├ ╲ ⌐ ╲ ╳ ⌐ ┌ ┼ ⌐ ┼• ├ ⌐ ¬• ¬• ╳ ┬ ┼ ├• ┼ ┼• ⌐ ┼• ├ ╳• ┤• ├• ┼ ┼• ├• ┼ ┐• ┼ ¬• ▽ ┌• ¬• ⌐ ▽ ┼ ┐• ╲ | ⌐ ¬• ¬• ╳ ┬ ┼ ╳• ┤• ┐• ¬• ├ ╲ ⌐ ╲ ╳ ⌐ ┌ ┼ ⌐ ┼• ├ ⌐ ¬• ¬• ╳ ┬ ┼ ├• ┼ ┼• ⌐ ┼• ├ ╳• ┤• ├• ┼ ┼• ├• ┼ ┐• ┼ ¬• ▽ ┌• ¬• ⌐ ▽ ┼ ┐• ╲ | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 73 | 123 | cipher_museum | 0.2 | public | null | null |
culper-ring-v3-0035 | 100 998 800 815 815 811 804 999 998 805 800 811 811 818 999 | 100 998 800 815 815 811 804 999 998 805 800 811 811 818 999 | THE APPLE FALLS | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 45 | 59 | cipher_museum | 2.0 | public | null | null |
cda-0015030 | 44 23 15 32 15 43 43 11 22 15 52 11 43 23 24 14 14 15 33 12 45 44 33 34 44 43 15 13 45 42 15 35 45 12 31 24 13 24 33 21 42 11 43 44 42 45 13 44 45 42 15 14 15 43 15 42 51 15 43 13 11 42 15 21 45 31 14 15 43 24 22 33 25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43... | 44 23 15 32 15 43 43 11 22 15 52 11 43 23 24 14 14 15 33 12 45 44 33 34 44 43 15 13 45 42 15 35 45 12 31 24 13 24 33 21 42 11 43 44 42 45 13 44 45 42 15 14 15 43 15 42 51 15 43 13 11 42 15 21 45 31 14 15 43 24 22 33 25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43... | THE MESSAGE WAS HIDDEN BUT NOT SECURE PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | polybius | polybius | null | {} | hard | en | 189 | 189 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
monoalphabetic-v2-0780 | QAI WJGGP AJVI IJOP | QAI WJGGP AJVI IJOP | THE WALLS HAVE EARS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "JUSTICE"
} | beginner | en | 16 | 19 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0209 | 173 177 138 179 125 156 124 162 167 118 136 117 175 101 177 160 110 136 128 148 120 168 100 168 174 112 152 156 152 119 173 177 161 168 141 165 181 149 107 179 119 147 143 170 100 143 129 140 148 174 149 166 109 152 119 173 126 158 114 | 173 177 138 179 125 156 124 162 167 118 136 117 175 101 177 160 110 136 128 148 120 168 100 168 174 112 152 156 152 119 173 177 161 168 141 165 181 149 107 179 119 147 143 170 100 143 129 140 148 174 149 166 109 152 119 173 126 158 114 | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 177 | 235 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0206 | HNAGMXINEBDK | HNAGMXINEBDK | GOLD FROM LEAD | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0061 | DVDFFDAXFXGGAXFXDGXFADDDAGGGFDVFGFFDVFGFAFFGDAAAADGDGXFGDFVDFGDGAGGGAAVAFAFAFFGFGFGGGFGADFFFVDGGGDVADFFAFVGAFAFVFDVGAFAVAGAGAGGGFADDGGFAFDADDFFA | DVDFFDAXFXGGAXFXDGXFADDDAGGGFDVFGFFDVFGFAFFGDAAAADGDGXFGDFVDFGDGAGGGAAVAFAFAFFGFGFGGGFGADFFFVDGGGDVADFFAFVGAFAFVFDVGAFAVAGAGAGGGFADDGGFAFDADDFFA | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 144 | 144 | cipher_museum | 2.0 | public | null | null |
noisy-caesar-historical_spelling-006 | YLJHQHUH FLSKHU ZDV NQRZQ DV WKH XQEUHDNDEOH FLSKHU IRU WKUHH FHQWXULHV | YLJHQHUH FLSKHU ZDV NQRZQ DV WKH XQEUHDNDEOH FLSKHU IRU WKUHH FHQWXULHV | VIGENERE CIPHER WAS KNOWN AS THY UNBREAKABLE CIPHER FOR THREE CENTURIES | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | en | 61 | 71 | cipher_museum | 0.2 | public | null | null |
cda-0015877 | CLA-GI-AIH / DZEH / DZEH / GAH / GAH / DZEH / A-KEH-DI-GLINI / TKIN / DZEH / GLOE-IH / WOL-LA-CHEE / TSAH / BE / GAH / DZEH / CLA-GI-AIH / GAH / A-KHA / BE / NO-DA-IH / MOASI / TKIN / SHUSH / TKIN / DIBEH-YAZZIE / TKIN ... | CLA-GI-AIH / DZEH / DZEH / GAH / GAH / DZEH / A-KEH-DI-GLINI / TKIN / DZEH / GLOE-IH / WOL-LA-CHEE / TSAH / BE / GAH / DZEH / CLA-GI-AIH / GAH / A-KHA / BE / NO-DA-IH / MOASI / TKIN / SHUSH / TKIN / DIBEH-YAZZIE / TKIN ... | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | navajo_code | navajo_code | null | {} | hard | en | 208 | 208 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
trifid-v2-0431 | D+SYYFCCRHQCEJY+FRKTAJKOOTFKAVDYFRZXTAOSIQAUJHH+SNUCMDICRDGXU+FPQKKSFGNIMBO | D+SYYFCCRHQCEJY+FRKTAJKOOTFKAVDYFRZXTAOSIQAUJHH+SNUCMDICRDGXU+FPQKKSFGNIMBO | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0565 | UYPWQGXFZWSTZRBQYDTYFWJCUCFEIXDUSAQGJEHUOVSESTKMOFAUYGSLTQJTYAMAHCZGMBAK | UYPWQGXFZWSTZRBQYDTYFWJCUCFEIXDUSAQGJEHUOVSESTKMOFAUYGSLTQJTYAMAHCZGMBAK | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0707 | PEEAODYEOTLPSETRAASRHIUNBRFELRYKHSIETSENTLAGLHNITYWUBRNYACOHSAPROELVUNROIPEUS | PEEAODYEOTLPSETRAASRHIUNBRFELRYKHSIETSENTLAGLHNITYWUBRNYACOHSAPROELVUNROIPEUS | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0299 | 742210223729253472232313210221293102229121225616215720288442822288232283057262122217484251328222270 | 742210223729253472232313210221293102229121225616215720288442822288232283057262122217484251328222270 | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 99 | 99 | cipher_museum | 2.0 | public | null | null |
cda-0012363 | FWRJ VWFR VISS LASX YJKZ AFYK ANGC KIZU EDPO DKUN RKDX AOTR UUDS UZSA MLQK UORZ MVKO DYFI YTIC OBRT IXTO QCNX XKKM ESOZ EZC | FWRJ VWFR VISS LASX YJKZ AFYK ANGC KIZU EDPO DKUN RKDX AOTR UUDS UZSA MLQK UORZ MVKO DYFI YTIC OBRT IXTO QCNX XKKM ESOZ EZC | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION PERHAPS | one_time_pad | one_time_pad | null | {} | hard | en | 99 | 99 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0002735 | DUSOCSYABDFETEPPEBISRTKSERIORTETETVAARTUDHAOINTBSEEBGECCTICCIAODEEEHRTISSUEETLERDSDESENRARONPEPSONENGIHDEEAISLENIFSSEHGURPTARHDXSEETNNMEPAXCAROMTNFHAMTEARRDTHTTTERIERFCCIEUECTIHNUFCIXLGIIELRYI | DUSOCSYABDFETEPPEBISRTKSERIORTETETVAARTUDHAOINTBSEEBGECCTICCIAODEEEHRTISSUEETLERDSDESENRARONPEPSONENGIHDEEAISLENIFSSEHGURPTARHDXSEETNNMEPAXCAROMTNFHAMTEARRDTHTTTERIERFCCIEUECTIHNUFCIXLGIIELRYI | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "SIGNAL"
} | hard | en | 192 | 192 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
cda-0015637 | ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X | ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | pigpen | pigpen | null | {} | easy | en | 21 | 21 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0016154 | otedy ypchol otedy ykcheol otol lkaiin dal sheol sheol rcheol otaiin kaiiin daral ykcheol okain otain shedy chedal aiiin ytaiin otaiin daral shal oxed rcheol qotedy okain daiin chol otaiin okal chol lkaiin daiin aiiin shedy kaiiin okain lkaiin okshy chedy chol ytedy chol oxed kaiiin dal kaiiin otaiin otedy chedal raiin... | otedy ypchol otedy ykcheol otol lkaiin dal sheol sheol rcheol otaiin kaiiin daral ykcheol okain otain shedy chedal aiiin ytaiin otaiin daral shal oxed rcheol qotedy okain daiin chol otaiin okal chol lkaiin daiin aiiin shedy kaiiin okain lkaiin okshy chedy chol ytedy chol oxed kaiiin dal kaiiin otaiin otedy chedal raiin... | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | voynich_render | voynich_render | null | {} | hard | en | 388 | 388 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0005737 | UEBAFSSYQ HFRF O QWUVG FRDHRANR OF GVR ESCROGVAU XSL | UEBAFSSYQ HFRF O QWUVG FRDHRANR OF GVR ESCROGVAU XSL | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | porta | porta | null | {
"key": "SECURE"
} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
wheatstone-v2-0259 | QECKBHNEPAQHES | QECKBHNEPAQHES | SIGNAL FIRES LIT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0039 | UDFBRCPBATPSHLWZBRHYRGIZ | UDFBRCPBATPSHLWZBRHYRGIZ | TORPEDO AWAY ALL HANDS BRACE | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
caesar-es-037 | LS XBL UV SSVYH UV THTH | LS XBL UV SSVYH UV THTH | EL QUE NO LLORA NO MAMA | caesar | caesar | substitution | {
"type": "shift",
"value": 7
} | beginner | es | 18 | 23 | cipher_museum | 0.2 | public | null | null |
cda-0016181 | POLYX LPHAB ETICZ IPHEZ SUSEM ULTIP LEALP HABEZ SHIFT SEVER YSYSZ EMNEE DSANH ONEST THREX TMODE LHUMX NREAX ABLEX UTPUX SHOUX DSHOW ALLRX ASONZ NGSTE PSACB | POLYX LPHAB ETICZ IPHEZ SUSEM ULTIP LEALP HABEZ SHIFT SEVER YSYSZ EMNEE DSANH ONEST THREX TMODE LHUMX NREAX ABLEX UTPUX SHOUX DSHOW ALLRX ASONZ NGSTE PSACB | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | commercial_code | commercial_code | null | {} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
solitaire-v2-0231 | XMNRGMQZVCTJJIXRHJLBKHLNWXOABVDDCREKQKDWYOOBYRUVLACYALFMMHVVTOOYTZIHCXSCPWZMVACUKORC | XMNRGMQZVCTJJIXRHJLBKHLNWXOABVDDCREKQKDWYOOBYRUVLACYALFMMHVVTOOYTZIHCXSCPWZMVACUKORC | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
lorenz-137 | NOPRISONERSTAKEN | NOPRISONERSTAKEN | NO PRISONERS TAKEN | lorenz | lorenz | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0263 | EWGRTE WUHCZGTX | EWGRTE WUHCZGTX | TARGET ACQUIRED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 14 | 15 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0209 | MTOPGOJUEDDYZYTWAOGUFUDPIGLAJEMEZPUIHPVCAVALDNUPUGUPWAHIWIETKXEMSWIURIGHQPXYYRW | MTOPGOJUEDDYZYTWAOGUFUDPIGLAJEMEZPUIHPVCAVALDNUPUGUPWAHIWIETKXEMSWIURIGHQPXYYRW | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
arnold-andre-v2-0019 | 13.1.1 14.1.3 14.3.5 14.3.4 14.4.5 14.1.1 14.1.3 14.4.5 15.1.1 13.1.1 14.2.3 14.1.1 14.4.4 15.1.1 13.1.1 14.1.2 14.1.5 14.1.5 14.3.4 15.1.1 13.1.1 14.3.3 14.1.1 14.1.4 14.1.5 15.1.1 | 13.1.1 14.1.3 14.3.5 14.3.4 14.4.5 14.1.1 14.1.3 14.4.5 15.1.1 13.1.1 14.2.3 14.1.1 14.4.4 15.1.1 13.1.1 14.1.2 14.1.5 14.1.5 14.3.4 15.1.1 13.1.1 14.3.3 14.1.1 14.1.4 14.1.5 15.1.1 | CONTACT HAS BEEN MADE | arnold_andre | arnold_andre | codebook | {
"type": "none",
"value": null
} | expert | en | 156 | 181 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0223 | 153 128 142 179 115 177 153 148 167 102 173 158 128 135 130 160 151 135 114 114 166 120 168 177 117 112 143 100 107 117 114 164 119 138 107 177 117 108 110 179 119 173 177 170 113 100 155 140 171 153 174 114 124 173 177 135 114 100 166 153 136 128 130 134 | 153 128 142 179 115 177 153 148 167 102 173 158 128 135 130 160 151 135 114 114 166 120 168 177 117 112 143 100 107 117 114 164 119 138 107 177 117 108 110 179 119 173 177 170 113 100 155 140 171 153 174 114 124 173 177 135 114 100 166 153 136 128 130 134 | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 192 | 255 | cipher_museum | 2.0 | public | null | null |
gronsfeld-358 | XJHXMFTWLJSGISWFAHIFUQUHWJPNSWXJDXXPGYIWZGGSIPCOPYPVKILMQUCTGIRHKPTWLJFCUXMJUWLJMQUHXBPGXMFHXPQOGVWYIGUITGVKIBPTOHFOFWLJZVKEYEYHPQUJHVJJP | XJHXMFTWLJSGISWFAHIFUQUHWJPNSWXJDXXPGYIWZGGSIPCOPYPVKILMQUCTGIRHKPTWLJFCUXMJUWLJMQUHXBPGXMFHXPQOGVWYIGUITGVKIBPTOHFOFWLJZVKEYEYHPQUJHVJJP | 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 | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "12345"
} | intermediate | en | 137 | 137 | cipher_museum | 0.2 | public | null | null |
gronsfeld-v2-1029 | NOSXZKZWFRI | NOSXZKZWFRI | KNOW THYSELF | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "31416"
} | intermediate | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
cda-0008541 | TODU UNLO BSNN EGTS CRCP ONRH SAHA TDEF TENP WESE FHEC NEPO BOTI RSKH TILA EOXX TRRC SIFE TITI ARRA FCOI NIEU TDEL CUEI YRST IESE XXCN TPOT OLMD TSPA STLI NDEC SCEH KHUI MAEM IRHE OTXX ITAE ICSN TAOB AMER LAIX | TODU UNLO BSNN EGTS CRCP ONRH SAHA TDEF TENP WESE FHEC NEPO BOTI RSKH TILA EOXX TRRC SIFE TITI ARRA FCOI NIEU TDEL CUEI YRST IESE XXCN TPOT OLMD TSPA STLI NDEC SCEH KHUI MAEM IRHE OTXX ITAE ICSN TAOB AMER LAIX | THE INDEX OF COINCIDENCE IS A USEFUL CLUE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 168 | 168 | synthetic_educational | null | null | [] | |
nomenclator-061 | 90 01 20 92 | 90 01 20 92 | ATTACK AT DAWN | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 8 | 11 | cipher_museum | 0.2 | public | null | null |
playfair-445 | AZATTNOTTAYKEMEGDZDTATBMEOZAYPOFEOGBMEAYOBSKYVFBZKKSZEKBCYZCIW | AZATTNOTTAYKEMEGDZDTATBMEOZAYPOFEOGBMEAYOBSKYVFBZKKSZEKBCYZCIW | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
autokey-v3-0030 | IAIAVMHNTIMPCHPZXWFYLVRIRXASA | IAIAVMHNTIMPCHPZXWFYLVRIRXASA | TAXATION WITHOUT REPRESENTATION | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
cda-0018059 | r· Γ· X K ┘· ┌· Γ· r ⌐ └ r Γ· ┐· r· L ┌· X ⌐ ┌· L K L ⌐ r r· L ┌· X ─ ┘· K ┐· ┌· ┘· K L r K Γ· ┘· ─ ⌐ └ ⌐ ─ K X· ┌· Γ· ─ ¬· ¬ ┌· ┘· ┐ L L ─ Γ· ¬· ┌ ⌐ ⌒ Γ· K r· r ┌· Γ· ¬ X ⌐ ─ Γ K r· L ¬ ┘· ┌ ¬ L ┌ ⌐ r r· Γ· ─ L ┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐·... | r· Γ· X K ┘· ┌· Γ· r ⌐ └ r Γ· ┐· r· L ┌· X ⌐ ┌· L K L ⌐ r r· L ┌· X ─ ┘· K ┐· ┌· ┘· K L r K Γ· ┘· ─ ⌐ └ ⌐ ─ K X· ┌· Γ· ─ ¬· ¬ ┌· ┘· ┐ L L ─ Γ· ¬· ┌ ⌐ ⌒ Γ· K r· r ┌· Γ· ¬ X ⌐ ─ Γ K r· L ¬ ┘· ┌ ¬ L ┌ ⌐ r r· Γ· ─ L ┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐·... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | pigpen | pigpen | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
trifid-v2-0443 | IGBCIRNZOEJLL+JU+RPIJCFMAPVRRZJYFFWRL+MKG++BPCIGZS++CYVSDMYDDTUOAHGWTRUGPO | IGBCIRNZOEJLL+JU+RPIJCFMAPVRRZJYFFWRL+MKG++BPCIGZS++CYVSDMYDDTUOAHGWTRUGPO | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0575 | CIIYIARMEDKQCBXBOFLODBFSQLGUKFLGRXKFIGCKDSRGSYQCBLXRGPTUXBFBZUBCKDVIOKPTKHNGQORFDABXXRGPTUXBFBKHBGQLXFVIOKXRIAOKRBARFBPTPCBIDSKFOKFBXCDKKRXFXRIADRIAIRCW | CIIYIARMEDKQCBXBOFLODBFSQLGUKFLGRXKFIGCKDSRGSYQCBLXRGPTUXBFBZUBCKDVIOKPTKHNGQORFDABXXRGPTUXBFBKHBGQLXFVIOKXRIAOKRBARFBPTPCBIDSKFOKFBXCDKKRXFXRIADRIAIRCW | 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 | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 152 | 152 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0613 | GDAADAAFGADAADAAAAADAFFAAAFAAAGDGAFDDAADGAGGFGFFFDFFVDAVXVXXVVGDVGVFFDGDXDVVDGVDVDDVFDXFVAVGVXGDXDFVFGGVFVFAAGGAFGAAAAGFDFAGADADFFAFAAADDFFDGAAADFDFDAADGAFAAAAAAFGAVVGVVXGDFGDFDGDVFFFVXDVGGFVXDGVVXFFVDVDVXVFFGXDDGVDGXDXDXVDXXVDGVXGVDVGVDGGDVXGGAFXDVDGXVFVXVFXVDDVVFVFGGVDFFAADAAFAGAAGGGAGFFAAAADDAAFAFAFFAFFGAGGFFDAADDAG... | GDAADAAFGADAADAAAAADAFFAAAFAAAGDGAFDDAADGAGGFGFFFDFFVDAVXVXXVVGDVGVFFDGDXDVVDGVDVDDVFDXFVAVGVXGDXDFVFGGVFVFAAGGAFGAAAAGFDFAGADADFFAFAAADDFFDGAAADFDFDAADGAFAAAAAAFGAVVGVVXGDFGDFDGDVFFFVXDVGGFVXDGVVXFFVDVDVXVFFGXDDGVDGXDXDXVDXXVDGVXGVDVGVDGGDVXGGAFXDVDGXVFVXVFXVDDVVFVFGGVDFFAADAAFAGAAGGGAGFFAAAADDAAFAFAFFAFFGAGGFFDAADDAG... | 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 | adfgvx | adfgvx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 328 | 328 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0244 | EQUGCATVJSIIJAQNBLBHKWNDIEVJGAXDNXYPTKSYDEQYQYNCXIYOSRJAOANCCESRBTMQCJXXHNMWJFRFWRIPGIEAENWRTIURNSJUMJEKQRKWIJOMDDGKQVDEZDMHLJUTMZAFFZNU | EQUGCATVJSIIJAQNBLBHKWNDIEVJGAXDNXYPTKSYDEQYQYNCXIYOSRJAOANCCESRBTMQCJXXHNMWJFRFWRIPGIEAENWRTIURNSJUMJEKQRKWIJOMDDGKQVDEZDMHLJUTMZAFFZNU | 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 | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0287 | 21233 21248 21231 21249 21238 21257 21239 21244 21242 21255 21243 21244 | 21233 21248 21231 21249 21238 21257 21239 21244 21242 21255 21243 21244 | IN GOD WE TRUST | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 60 | 71 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-203 | NMTHQVWCCSGTBG | NMTHQVWCCSGTBG | THE KING IS DEAD | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 14 | 14 | cipher_museum | 0.2 | public | null | null |
cda-0019346 | radio outer until takes enter cause intel parts holds exact roads stage radio exact along drive alert going route inner draft issue naval alert phase | radio outer until takes enter cause intel parts holds exact roads stage radio exact along drive alert going route inner draft issue naval alert phase | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | 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. |
trifid-v2-0237 | TOJFJFPOPATFHAUUEJVEJONSJRDNDOFDEDOFOLKDDOIULCRVLOFHRLEFUKODCTLICFSRSITDIIOFFDXLFNJOEF+CKKLAETTDTIDDFPVYQDODAOSXCD+GVAJKIDTUOQNFOOEBFHTN+LFUEEASHOHE | TOJFJFPOPATFHAUUEJVEJONSJRDNDOFDEDOFOLKDDOIULCRVLOFHRLEFUKODCTLICFSRSITDIIOFFDXLFNJOEF+CKKLAETTDTIDDFPVYQDODAOSXCD+GVAJKIDTUOQNFOOEBFHTN+LFUEEASHOHE | 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 | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
diana-v3-0619 | RGQCIJARTOIAYJFRZMIJLCQYGEFEXMFPFRWEQKBVOLNGBABRWOMFNIPBQNSAMUMGGGSEWWWCWLPVLCQSQWUMRMEGUXQWQAFMPWDHECIPCFBLLQCPUDETGVLVKFFMRAGOOMIKYPMPPFGARBOCVNXBJEBUNXLPECPGQXMHIEPRBU | RGQCIJARTOIAYJFRZMIJLCQYGEFEXMFPFRWEQKBVOLNGBABRWOMFNIPBQNSAMUMGGGSEWWWCWLPVLCQSQWUMRMEGUXQWQAFMPWDHECIPCFBLLQCPUDETGVLVKFFMRAGOOMIKYPMPPFGARBOCVNXBJEBUNXLPECPGQXMHIEPRBU | 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": "JUSTICE"
} | intermediate | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0218 | RCSY DHUUHCQ HK RCS OICCUL WC XOOLBW HW HU WC LAWYXOW WIL XJLQW KYCD PLIHQM LQLDR EHQLU WCQHJIW | RCSY DHUUHCQ HK RCS OICCUL WC XOOLBW HW HU WC LAWYXOW WIL XJLQW KYCD PLIHQM LQLDR EHQLU WCQHJIW | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 78 | 95 | cipher_museum | 2.0 | public | null | null |
cda-0003208 | PRSHASKCGACLHUHTFNCIRKEDISHRRGXMPNENLAFRTYITHTHDTRNVUSAEIEYGPYLPIEBGUTDORNAODEELRFSXGLAEOECIXNEERDAPRDTESOSAESSTREEAOEXSTNAXLEOEUETEUEIDIWNAPTWHVRRNYEACGEXAOAIRIFREUSCNAPBTWNUEPHIOCOPRLX | PRSHASKCGACLHUHTFNCIRKEDISHRRGXMPNENLAFRTYITHTHDTRNVUSAEIEYGPYLPIEBGUTDORNAODEELRFSXGLAEOECIXNEERDAPRDTESOSAESSTREEAOEXSTNAXLEOEUETEUEIDIWNAPTWHVRRNYEACGEXAOAIRIFREUSCNAPBTWNUEPHIOCOPRLX | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE VIGENERE CIPHER USES A REPEATING KEYWORD | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "DRAGON"
} | hard | en | 186 | 186 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
nomenclator-v2-0182 | 09 11 14 15 23 14 15 20 23 08 01 20 03 15 21 18 19 05 15 20 08 05 18 19 13 01 25 20 01 11 05 02 21 20 01 19 06 15 18 13 05 07 09 22 05 13 05 12 09 02 05 18 20 25 15 18 07 09 22 05 13 05 04 05 01 20 08 | 09 11 14 15 23 14 15 20 23 08 01 20 03 15 21 18 19 05 15 20 08 05 18 19 13 01 25 20 01 11 05 02 21 20 01 19 06 15 18 13 05 07 09 22 05 13 05 12 09 02 05 18 20 25 15 18 07 09 22 05 13 05 04 05 01 20 08 | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 134 | 200 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0337 | GRFZCCJSDNLNZVA | GRFZCCJSDNLNZVA | CHART THE UNKNOWN | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0150 | YALJFCVHFPPFORJ | YALJFCVHFPPFORJ | THE FACTORY ROARS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0014592 | CESZ GPIQ QHKI OZHQ VMZP YKXY RQCJ BHTA DEWC BKTC KHDM KVBG URNJ ULJZ UDCF ZNMR CYGZ GRQA OWLI XERE AROL UPNC FNXT YAGB YITW SFKB IMYL TXJW | CESZ GPIQ QHKI OZHQ VMZP YKXY RQCJ BHTA DEWC BKTC KHDM KVBG URNJ ULJZ UDCF ZNMR CYGZ GRQA OWLI XERE AROL UPNC FNXT YAGB YITW SFKB IMYL TXJW | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | vernam | vernam | null | {} | hard | en | 112 | 112 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0018061 | 16.13.3 3.8.5 16.5.11 16.35.1 14.32.1 14.2.9 11.13.5 14.29.13 3.7.4 18.34.8 2.49.9 2.8.7 19.25.5 14.40.6 14.39.11 3.44.6 6.13.15 9.13.2 4.47.7 10.18.10 15.29.13 12.40.1 18.41.5 4.1.5 13.27.10 8.6.10 14.38.15 15.23.14 12.5.3 20.49.9 2.9.6 12.18.10 10.3.1 14.42.12 8.23.8 15.19.12 15.6.9 10.20.6 9.28.5 8.49.14 3.48.15 19.... | 16.13.3 3.8.5 16.5.11 16.35.1 14.32.1 14.2.9 11.13.5 14.29.13 3.7.4 18.34.8 2.49.9 2.8.7 19.25.5 14.40.6 14.39.11 3.44.6 6.13.15 9.13.2 4.47.7 10.18.10 15.29.13 12.40.1 18.41.5 4.1.5 13.27.10 8.6.10 14.38.15 15.23.14 12.5.3 20.49.9 2.9.6 12.18.10 10.3.1 14.42.12 8.23.8 15.19.12 15.6.9 10.20.6 9.28.5 8.49.14 3.48.15 19.... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | book_cipher | book_cipher | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
trifid-047 | RBBOLIRXDAFLMWADRIYAQMPQTWQDEKDFQDWH+RQQDFLVJWXFB | RBBOLIRXDAFLMWADRIYAQMPQTWQDEKDFQDWH+RQQDFLVJWXFB | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FELIX"
} | advanced | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
vernam-v3-0003 | RPOHAFYUWCLFUYHXDFFXXVU | RPOHAFYUWCLFUYHXDFFXXVU | ROME WAS NOT BUILT IN ONE DAY | vernam | vernam | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
slidex-014 | AMNKMRZBRFZNKYME | AMNKMRZBRFZNKYME | ALL IS LOST RETREAT | slidex | slidex | transposition | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
kryptos-v2-0075 | DYMEJDUSMPCPQUXRFAYUKNJTDKVEERWPQXCPRLDISRLXIFFXDPXRJXBNKHNBLUGHJXZKXLXWDNLLA | DYMEJDUSMPCPQUXRFAYUKNJTDKVEERWPQXCPRLDISRLXIFFXDPXRJXBNKHNBLUGHJXZKXLXWDNLLA | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
geez-monastic-047 | RTSHRHAHRHDHHDPVTHKPIHDESUYTMTAPNNHSPKHSQNTGPOONT | RTSHRHAHRHDHHDPVTHKPIHDESUYTMTAPNNHSPKHSQNTGPOONT | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "GEEZ"
} | advanced | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
cda-0019291 | 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 | 21 42 24 15 14 32 11 33 15 43 44 24 32 11 44 15 14 25 15 54 31 15 33 22 44 23 21 42 34 32 43 44 11 44 24 43 44 24 13 43 | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | polybius | polybius | null | {} | medium | en | 40 | 40 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
two-square-105 | OLEAFOTBZUAHSORZEPDIIMCQFOFICETOOLESUETEEPISLIDAORDEFPPY | OLEAFOTBZUAHSORZEPDIIMCQFOFICETOOLESUETEEPISLIDAORDEFPPY | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | two_square | two_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
bifid-fr-019 | GNUFGFHEYVHKNVZSRX | GNUFGFHEYVHKNVZSRX | LA PATRIE LA LOI LE ROI | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | fr | 18 | 18 | cipher_museum | 0.2 | public | null | null |
trithemius-v2-0055 | ASOB SK TVZCRPDA JXHXAGCV ORPQEOFHVX GA IYZZYNHIEO UHOMPEMTSF VKI BGY QW DSQ ROHJ ZK HPZN | ASOB SK TVZCRPDA JXHXAGCV ORPQEOFHVX GA IYZZYNHIEO UHOMPEMTSF VKI BGY QW DSQ ROHJ ZK HPZN | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0307 | DKQBWWFUEMWAGBXVWRBUBZILQFJYMRQZGZWADZXODIODPKVIXZPVGDXWQKVVFJGYOHHTSDVIHDYRXDXJKZ | DKQBWWFUEMWAGBXVWRBUBZILQFJYMRQZGZWADZXODIODPKVIXZPVGDXWQKVVFJGYOHHTSDVIHDYRXDXJKZ | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
affine-v2-1623 | BHC EPB KV GEP AI KV NABEF AYDKPBERQC BK BHC IBEBC AB AI E YEBBCP KV FAVC ERJ JCEBH E PKEJ CABHCP BK IEVCBS KP BK PUAR HCRQC AB AI E IUXTCQB KV ARWUAPS GHAQH QER KR RK EQQKURB XC RCOFCQBCJ | BHC EPB KV GEP AI KV NABEF AYDKPBERQC BK BHC IBEBC AB AI E YEBBCP KV FAVC ERJ JCEBH E PKEJ CABHCP BK IEVCBS KP BK PUAR HCRQC AB AI E IUXTCQB KV ARWUAPS GHAQH QER KR RK EQQKURB XC RCOFCQBCJ | 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 | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 148 | 188 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0144 | TVAXHZIIJNEAU | TVAXHZIIJNEAU | AWAIT MY SIGNAL | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "TRAFALGAR"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0130 | UBTQWSPYIHHSVFOMQX | UBTQWSPYIHHSVFOMQX | TREASURE BURIED HERE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
playfair-047 | KGHNZEANXYRPYBMVATLUIORYHNZMGMLCBWHNWMIUKCANPKIMDZCFMKLXPL | KGHNZEANXYRPYBMVATLUIORYHNZMGMLCBWHNWMIUKCANPKIMDZCFMKLXPL | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "MONARCHY"
} | intermediate | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
copiale-v3-0092 | M5 L1 R8 V4 S3 R7 S6 N6 R1 K0 U4 Q6 U6 P3 C9 B7 M6 T4 Q6 I5 B8 I6 R1 C8 L9 M2 P2 A6 B6 A9 C4 L5 L6 X0 Q7 O8 P3 I6 S0 L6 M8 T7 A6 B8 T0 S1 M6 C1 K7 C3 V4 C9 X2 O8 N7 C5 N2 O5 A9 C3 T1 A1 I8 N3 B7 N2 C8 C9 T9 L0 M8 X2 C3 Q1 B6 A9 C7 L6 A3 Q1 C4 A4 V4 Q8 A6 I4 T4 A1 K0 N6 L0 A4 C8 C9 K0 I1 O0 V4 O3 K0 B1 K8 B2 A9 M9 R1 Q7... | M5 L1 R8 V4 S3 R7 S6 N6 R1 K0 U4 Q6 U6 P3 C9 B7 M6 T4 Q6 I5 B8 I6 R1 C8 L9 M2 P2 A6 B6 A9 C4 L5 L6 X0 Q7 O8 P3 I6 S0 L6 M8 T7 A6 B8 T0 S1 M6 C1 K7 C3 V4 C9 X2 O8 N7 C5 N2 O5 A9 C3 T1 A1 I8 N3 B7 N2 C8 C9 T9 L0 M8 X2 C3 Q1 B6 A9 C7 L6 A3 Q1 C4 A4 V4 Q8 A6 I4 T4 A1 K0 N6 L0 A4 C8 C9 K0 I1 O0 V4 O3 K0 B1 K8 B2 A9 M9 R1 Q7... | 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 | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 334 | 500 | cipher_museum | 2.0 | public | null | null |
stager-route-v2-0101 | DNELTUTIENCZTETSDEUUIWTZEHHLZBUSENBTSEDNZNRUTXSDDUNERCHARESTEAXXMRRCSWLLALESHULMX | DNELTUTIENCZTETSDEUUIWTZEHHLZBUSENBTSEDNZNRUTXSDDUNERCHARESTEAXXMRRCSWLLALESHULMX | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0017551 | 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 32 15 11 43 45 42 15 43 31 15 44 44 15 42 21 42 15 41 45 15 33 13 54 14 24 43 44 42 24 12 45 44 24 34 33 | 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 32 15 11 43 45 42 15 43 31 15 44 44 15 42 21 42 15 41 45 15 33 13 54 14 24 43 44 42 24 12 45 44 24 34 33 | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | polybius | polybius | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0016166 | NKCET EQBOD WYTHS MGCYZ OEYSS BBXRN TXKVP ORZAQ NYSRC TPGWU YFOVP FVZRF IYOAY GFIOR GLFDW ZBTQM POYFJ GJXOZ YNDTL FSIHQ AUOOJ ODM | NKCET EQBOD WYTHS MGCYZ OEYSS BBXRN TXKVP ORZAQ NYSRC TPGWU YFOVP FVZRF IYOAY GFIOR GLFDW ZBTQM POYFJ GJXOZ YNDTL FSIHQ AUOOJ ODM | THE VIGENERE CIPHER USES A REPEATING KEYWORD THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER CERTAINLY | vernam | vernam | null | {} | hard | en | 108 | 108 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
purple-v3-0136 | YFNMTNOFUYLHBKHUIADPOFDTY | YFNMTNOFUYLHBKHUIADPOFDTY | THE SHOT HEARD ROUND THE WORLD | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
cda-0009204 | ACENN UAALP EELET CSLDG CELNW HNTLP VATAS EENYR EESOO EETRI SVFCS EAROO WNRIO MTIRY IVKSU LIDIO NNRDE ASECO RSNEF NGEOE QNCAI PCADN IX | ACENN UAALP EELET CSLDG CELNW HNTLP VATAS EENYR EESOO EETRI SVFCS EAROO WNRIO MTIRY IVKSU LIDIO NNRDE ASECO RSNEF NGEOE QNCAI PCADN IX | A STRONG CLAIM NEEDS STRONG EVIDENCE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | scytale | scytale | null | {
"cols": 7
} | hard | en | 112 | 112 | synthetic_educational | null | null | [] | |
geez-monastic-v2-0299 | SMWQMZHIFZUHCCWZAQMWGZWQMGWAMVYWYAVHQPJUUPMPJCMJZQVHYAMASJUFWZPMMN | SMWQMZHIFZUHCCWZAQMWGZWQMGWAMVYWYAVHQPJUUPMPJCMJZQVHYAMASJUFWZPMMN | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0784 | NFVKCZJAQVLQMTKLOBKVZQQTIAJWPIUEVKVLUGPQUFXGZJFVVXLSARQYBBKWUUPQUHTMFQZPVPWAFL | NFVKCZJAQVLQMTKLOBKVZQQTIAJWPIUEVKVLUGPQUFXGZJFVVXLSARQYBBKWUUPQUHTMFQZPVPWAFL | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "71828"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0370 | VPELNPJFLBGXDVOYGAXSRCPCXIKORZGZUDMJDYOGOLIISKJBKZHDIDRSYIDIUEKHPBOWNLSMEFMXCIUPFCYZTVNWBALKQZHJCVFEZHADMXBVFZQMKDHOLVIAHBZVSQHOGNQKKKOU | VPELNPJFLBGXDVOYGAXSRCPCXIKORZGZUDMJDYOGOLIISKJBKZHDIDRSYIDIUEKHPBOWNLSMEFMXCIUPFCYZTVNWBALKQZHJCVFEZHADMXBVFZQMKDHOLVIAHBZVSQHOGNQKKKOU | 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 | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
scytale-316 | SDIOENXERNRMTXNEFCESX | SDIOENXERNRMTXNEFCESX | SEND REINFORCEMENTS | scytale | scytale | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
arnold-andre-v2-0024 | 1.1.2 13.1.1 14.5.3 14.1.1 14.3.2 14.3.2 14.4.4 15.1.1 13.1.1 14.2.3 14.1.1 14.5.2 14.1.5 15.1.1 13.1.1 14.1.5 14.1.1 14.4.3 14.4.4 15.1.1 | 1.1.2 13.1.1 14.5.3 14.1.1 14.3.2 14.3.2 14.4.4 15.1.1 13.1.1 14.2.3 14.1.1 14.5.2 14.1.5 15.1.1 13.1.1 14.1.5 14.1.1 14.4.3 14.4.4 15.1.1 | THE WALLS HAVE EARS | arnold_andre | arnold_andre | codebook | {
"type": "none",
"value": null
} | expert | en | 119 | 138 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-0990 | GGTIOSHUMIWMWSLLZBNOWUVFNTSBUVOKMBSRDQHHLNUXACWAAUBTIWBKWHTPIMEZIEUWAYKVYXWOZVKVHULZRKTVIAZLGRLMFZOJECSALJHITMBIGKMYWKFJALHNPYNVFLNSZUAZXEEYPLU | GGTIOSHUMIWMWSLLZBNOWUVFNTSBUVOKMBSRDQHHLNUXACWAAUBTIWBKWHTPIMEZIEUWAYKVYXWOZVKVHULZRKTVIAZLGRLMFZOJECSALJHITMBIGKMYWKFJALHNPYNVFLNSZUAZXEEYPLU | 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 | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "COMPASS"
} | intermediate | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0352 | ZYLVOK | ZYLVOK | EUREKA | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0331 | TEBTKBFBTBRLBLDBLUTQSPCPHIOLFXLKYNUTRYUNABTYESIFPBNBBOIGPVMBUBXFMETKUMKTKLRT | TEBTKBFBTBRLBLDBLUTQSPCPHIOLFXLKYNUTRYUNABTYESIFPBNBBOIGPVMBUBXFMETKUMKTKLRT | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0247 | AWKJMYHCQVOQACLIYUZJJ | AWKJMYHCQVOQACLIYUZJJ | THE EXPERIMENT CONFIRMS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
kama-sutra-216 | VII BNW EGCIQX V XBVOW VHQ VII BNW ZWH VHQ EGZWH ZWCWIU FIVUWCX | VII BNW EGCIQX V XBVOW VHQ VII BNW ZWH VHQ EGZWH ZWCWIU FIVUWCX | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 51 | 63 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-437 | JNNS VS SBN LHE LVF | JNNS VS SBN LHE LVF | MEET AT THE OLD OAK | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "VIGENERE"
} | beginner | en | 15 | 19 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-v2-0391 | KMOLXDENZMKGR | KMOLXDENZMKGR | STAY THE COURSE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0093 | LESONHIHPSGXGUEHUXDBPSGPUEGIFICTEHCXPLWMGRPRPCTIPTPDGUJAWTJEITSEAEGEPNFSLEOBAXWETREVTAEOTAXTSCGVIATNWRPLTEPEQLPRKKWTDTJEIAXOPKIHPSGEGEWIHIAIMETXNAYDVLTPFRUYXTZFJEEPTNGWH | LESONHIHPSGXGUEHUXDBPSGPUEGIFICTEHCXPLWMGRPRPCTIPTPDGUJAWTJEITSEAEGEPNFSLEOBAXWETREVTAEOTAXTSCGVIATNWRPLTEPEQLPRKKWTDTJEIAXOPKIHPSGEGEWIHIAIMETXNAYDVLTPFRUYXTZFJEEPTNGWH | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
cda-0021967 | WL MLG XLMUFHV LYUFHXZGRLM DRGS VMXIBKGRLM GSV NVHHZTV DZH SRWWVM YFG MLG HVXFIV NLWVIM VMXIBKGRLM RH MLG YILPVM YB OVGGVI UIVJFVMXB | WL MLG XLMUFHV LYUFHXZGRLM DRGS VMXIBKGRLM GSV NVHHZTV DZH SRWWVM YFG MLG HVXFIV NLWVIM VMXIBKGRLM RH MLG YILPVM YB OVGGVI UIVJFVMXB | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE MESSAGE WAS HIDDEN BUT NOT SECURE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | atbash | atbash | null | {} | hard | en | 112 | 112 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
typex-004 | VYXYNYGMNCRHATGYKKNR | VYXYNYGMNCRHATGYKKNR | RENDEZVOUS AT MIDNIGHT | typex | typex | machine | {
"type": "keyword",
"value": "TYPEX"
} | expert | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
sigaba-010 | DSBKMEEHJAFGBJSOSFGLG | DSBKMEEHJAFGBJSOSFGLG | THE PACKAGE IS DELIVERED | sigaba | sigaba | machine | {
"type": "seed",
"value": "SIGABA"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0322 | EFBATAKOFLIOSBMEEMLQQLRYPNKLLBRPTZLOBEOVTABLDZLQSOHIZBUTCAXGQTIGNPADGYKOHCTKKOBMOT | EFBATAKOFLIOSBMEEMLQQLRYPNKLLBRPTZLOBEOVTABLDZLQSOHIZBUTCAXGQTIGNPADGYKOHCTKKOBMOT | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
trifid-vg-0058 | REE+GLSRSRIBOHWROB+TSKCJMOJTSFFTBEWDJRS+GRVS+PBCMPASCTHBRJ++LRBRWDJRS+RFTDST | REE+GLSRSRIBOHWROB+TSKCJMOJTSFFTBEWDJRS+GRVS+PBCMPASCTHBRJ++LRBRWDJRS+RFTDST | THEREFORE SINCE WE HAVE BEEN JUSTIFIED THROUGH FAITH WE HAVE PEACE WITH GOD THROUGH CHRIST | trifid | trifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0298 | ETRGWJMXYSYHZUVYQXBIXZUZJXOGXJRRCEHHJYGGKYDVEPBDGAHJJVBOSLQPNPZQZJGYSEUFOQLPSB | ETRGWJMXYSYHZUVYQXBIXZUZJXOGXJRRCEHHJYGGKYDVEPBDGAHJJVBOSLQPNPZQZJGYSEUFOQLPSB | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
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