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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
solitaire-v3-0194 | XMNBKXBUUPYCBOMNHVAAFLOSLPOUBTUYBRHGEKDYKPTCGAJVBOYZGSDBMYJTEYYLFXXXPIINSAOCKP | XMNBKXBUUPYCBOMNHVAAFLOSLPOUBTUYBRHGEKDYKPTCGAJVBOYZGSDBMYJTEYYLFXXXPIINSAOCKP | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0310 | FBHKPECUJSCEE+IUSRQHRVOZBCCLKFQZUBLMNDREPBCOKXRAONBZDBLFLKK+YZHALQDC | FBHKPECUJSCEE+IUSRQHRVOZBCCLKFQZUBLMNDREPBCOKXRAONBZDBLFLKK+YZHALQDC | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
affine-v3-0373 | CT TLW HCTTFW UB KQRICS CKWJQMCP RQDW HUKHWJO RWOTJUSWR BUYJ VCZCPWOW MCJJQWJO QP KQPYTWO | CT TLW HCTTFW UB KQRICS CKWJQMCP RQDW HUKHWJO RWOTJUSWR BUYJ VCZCPWOW MCJJQWJO QP KQPYTWO | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | affine | affine | substitution | {
"a": 5,
"b": 2
} | beginner | en | 76 | 89 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0557 | OPGDWMYJIJXGBWWYRRN | OPGDWMYJIJXGBWWYRRN | THE TELESCOPE REVEALS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "VICKSBURG"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0257 | NCSERONUZCDQMCOSHE3GBF6VMIOBGCDABFCH3WSH7IXCVMJGBDCDMS5IB4EGSA6XCDABG75 | NCSERONUZCDQMCOSHE3GBF6VMIOBGCDABFCH3WSH7IXCVMJGBDCDMS5IB4EGSA6XCDABG75 | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-119 | 2836 1887 1700 1427 2670 2836 2333 1762 3087 1427 2670 1953 2761 2333 1762 3014 1953 2836 1427 2144 1953 2207 2439 2333 2670 2836 1427 2271 1571 1700 2836 2333 2836 1887 1700 2761 2836 1427 2836 1700 1953 2836 1953 2761 1427 2207 1427 2836 2836 1700 2670 2333 1762 2144 1953 1762 1700 1427 2271 1634 1634 1700 1427 2836 ... | 2836 1887 1700 1427 2670 2836 2333 1762 3087 1427 2670 1953 2761 2333 1762 3014 1953 2836 1427 2144 1953 2207 2439 2333 2670 2836 1427 2271 1571 1700 2836 2333 2836 1887 1700 2761 2836 1427 2836 1700 1953 2836 1953 2761 1427 2207 1427 2836 2836 1700 2670 2333 1762 2144 1953 1762 1700 1427 2271 1634 1634 1700 1427 2836 ... | 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 | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "31415"
} | expert | en | 592 | 739 | cipher_museum | 0.2 | public | null | null |
cda-0007834 | CRWTNUINLTSRNGEHSERNLDIAARYPRECTGEOHOASTSWOUAHHANDHPTYSCRIUDTUAOEPNLLPAMNEEPROGEAAFKABUDLIS | CRWTNUINLTSRNGEHSERNLDIAARYPRECTGEOHOASTSWOUAHHANDHPTYSCRIUDTUAOEPNLLPAMNEEPROGEAAFKABUDLIS | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | stager_route | stager_route | null | {
"cols": 7
} | hard | en | 91 | 91 | synthetic_educational | null | null | [] | |
alberti-disk-230 | GAOQUTENRPGYHFZRXIOEDFTGIJNGBCQHKEXQPBPDULUPSGVEQLEVDNT | GAOQUTENRPGYHFZRXIOEDFTGIJNGBCQHKEXQPBPDULUPSGVEQLEVDNT | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 19
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
bazeries-v3-0589 | GARLSTQLYMIHOSNOTYYAXYJMQDHQYMPHLNOYPOSGNVDYMDSLGHAOXYSQLYQHGSJMOMHYVEHMOXAVHDYFA | GARLSTQLYMIHOSNOTYYAXYJMQDHQYMPHLNOYPOSGNVDYMDSLGHAOXYSQLYQHGSJMOMHYVEHMOXAVHDYFA | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | bazeries | bazeries | transposition | {
"type": "integer",
"value": 67
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0457 | FTHHVAIDHJBHGIJIYEZXZNRCULRWHTZEPHPXSMWPWWNOTLLQUENANEWKGNVATCTSGUYIOAYOUBFPPAS | FTHHVAIDHJBHGIJIYEZXZNRCULRWHTZEPHPXSMWPWWNOTLLQUENANEWKGNVATCTSGUYIOAYOUBFPPAS | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v3-0150 | WARVKYFAVTREDSSHAMSDAVJUUQIAEKAPICUWGWRWMPJMFSQKIHNEYTXPFGFMKXDWSFZOXPCTFP | WARVKYFAVTREDSSHAMSDAVJUUQIAEKAPICUWGWRWMPJMFSQKIHNEYTXPFGFMKXDWSFZOXPCTFP | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0013287 | K r· L └ Γ· ¬ ┌· ⌐ ┌· ⌒· ┐· ┌· L X L ┌· K· L X ┐ ─ ┘· ⌒ └ L Γ ¬· L ⌐· ┘· ┌· K r· L r ┘· ┌ ┌ X· ─ Γ· K ⌒· ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X K r· L K· Γ· ¬· L ─ L ┌· L r Γ· ┐· r· L ┌· X· X L X ⌐ ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· ⌒ ┘· ┌· Γ | K r· L └ Γ· ¬ ┌· ⌐ ┌· ⌒· ┐· ┌· L X L ┌· K· L X ┐ ─ ┘· ⌒ └ L Γ ¬· L ⌐· ┘· ┌· K r· L r ┘· ┌ ┌ X· ─ Γ· K ⌒· ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X K r· L K· Γ· ¬· L ─ L ┌· L r Γ· ┐· r· L ┌· X· X L X ⌐ ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· ⌒ ┘· ┌· Γ | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE VIGENERE CIPHER USES A REPEATING KEYWORD | pigpen | pigpen | null | {} | medium | en | 47 | 47 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
bifid-v2-0659 | RDFTGUHQAWNEITLLEURBTFCPTQDYLAELDONOUEVHHOWPWDITEWDFCTGPYTERUOPDRBERHKRHDEVDG | RDFTGUHQAWNEITLLEURBTFCPTQDYLAELDONOUEVHHOWPWDITEWDFCTGPYTERUOPDRBERHKRHDEVDG | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | bifid | bifid | fractionation | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0142 | OTPUODQUZFQACV | OTPUODQUZFQACV | TRUST BUT VERIFY | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
trifid-294 | DJTSRLJYPKO+ECSOPAIMJMUTHDUCYLPBARXJTIXHFIQCLKZ+KWRETAVETSPAFF | DJTSRLJYPKO+ECSOPAIMJMUTHDUCYLPBARXJTIXHFIQCLKZ+KWRETAVETSPAFF | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "TRIFID"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0049 | FALUKULTBRMTRQVTAGAFBHLLKRIVRHLBWUFDETXAHSLALKKRGEPVRIVSWFATLEVZRNBPJZ | FALUKULTBRMTRQVTAGAFBHLLKRIVRHLBWUFDETXAHSLALKKRGEPVRIVSWFATLEVZRNBPJZ | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0165 | 54 26 25 35 58 56 88 73 30 25 39 70 65 80 52 38 46 28 48 83 60 45 38 38 47 60 65 76 43 56 47 26 70 63 47 66 29 57 25 48 64 80 66 38 55 36 68 65 50 52 60 56 55 36 54 66 45 60 46 29 39 65 56 76 36 37 46 39 | 54 26 25 35 58 56 88 73 30 25 39 70 65 80 52 38 46 28 48 83 60 45 38 38 47 60 65 76 43 56 47 26 70 63 47 66 29 57 25 48 64 80 66 38 55 36 68 65 50 52 60 56 55 36 54 66 45 60 46 29 39 65 56 76 36 37 46 39 | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 136 | 203 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0266 | ZSGQRSIBEMCBSSIBAMSKXDTAWDWHDWAQPVVOXVPVGXFUAWTUKWOGVAQNLTHOZBUHBLGJIAWIQW | ZSGQRSIBEMCBSSIBAMSKXDTAWDWHDWAQPVVOXVPVGXFUAWTUKWOGVAQNLTHOZBUHBLGJIAWIQW | THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0327 | ETRYLDXRBNVOWAKPXPTGBAVWIREOKMRRNMBBRRZICBIWVWOAVZDSVGCWDFCVCDQHZJTSUBAQFYQLA | ETRYLDXRBNVOWAKPXPTGBAVWIREOKMRRNMBBRRZICBIWVWOAVZDSVGCWDFCVCDQHZJTSUBAQFYQLA | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0009840 | OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQN HGQE KIUM AKRS OPNV LTAS LBRZ IVHH HVSL IIEK EZNB HIMS KJQY RPDN DEBZ WLUG EKCZ RGWQ GYOV VCYP MPVA UKLX LODB GMDF ZRJH UPVL SOQA QTYJ SNMZ BRJB LVG | OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQN HGQE KIUM AKRS OPNV LTAS LBRZ IVHH HVSL IIEK EZNB HIMS KJQY RPDN DEBZ WLUG EKCZ RGWQ GYOV VCYP MPVA UKLX LODB GMDF ZRJH UPVL SOQA QTYJ SNMZ BRJB LVG | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE A TRANSPARENT TOOL SHOULD SHOW ITS REASONING AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE INDEX OF COINCIDENCE IS A USEFUL CLUE | trithemius | trithemius | null | {} | hard | en | 159 | 159 | synthetic_educational | null | null | [] | |
vic-v2-0066 | 910808180489181910802189783909108058082838686838682181383907185486784861328078280181910800129518680839092867808990914867838682 | 910808180489181910802189783909108058082838686838682181383907185486784861328078280181910800129518680839092867808990914867838682 | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 126 | 126 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0370 | 01 12 12 07 01 21 12 09 19 04 09 22 09 04 05 04 09 14 20 15 20 08 18 05 05 16 01 18 20 19 15 14 05 62 23 08 09 03 08 60 02 05 12 07 01 05 09 14 08 01 02 09 20 60 01 17 21 09 20 01 14 09 01 14 15 20 08 05 18 61 60 20 08 09 18 04 20 08 15 19 05 23 08 15 64 20 08 05 09 18 15 23 14 12 01 14 07 21 01 07 05 01 18 05 03 01 12... | 01 12 12 07 01 21 12 09 19 04 09 22 09 04 05 04 09 14 20 15 20 08 18 05 05 16 01 18 20 19 15 14 05 62 23 08 09 03 08 60 02 05 12 07 01 05 09 14 08 01 02 09 20 60 01 17 21 09 20 01 14 09 01 14 15 20 08 05 18 61 60 20 08 09 18 04 20 08 15 19 05 23 08 15 64 20 08 05 09 18 15 23 14 12 01 14 07 21 01 07 05 01 18 05 03 01 12... | 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 | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 250 | 374 | cipher_museum | 2.0 | public | null | null |
cda-0019155 | clear often large unite motor notes along radio three route above notes scout parts order scout incur track issue outer needs radio enemy alert daily | clear often large unite motor notes along radio three route above notes scout parts order scout incur track issue outer needs radio enemy alert daily | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | 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. |
solitaire-110 | LBKSILLXSQIUPCMDXUFAFMGMHCLTIOXMKDPBEFUFJAVWLNBGQTATZIN | LBKSILLXSQIUPCMDXUFAFMGMHCLTIOXMKDPBEFUFJAVWLNBGQTATZIN | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "CRYPTONOMICON"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
four-square-v2-0527 | ZOQBWHFGADCQHLQDIAWASBSTSHIYSTMUFHCGBERLKQEUFCKUBLAERIQMSSSHDDKQEUCGWMSS | ZOQBWHFGADCQHLQDIAWASBSTSHIYSTMUFHCGBERLKQEUFCKUBLAERIQMSSSHDDKQEUCGWMSS | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
beaufort-v2-1076 | MTLBCJBNNLANJPTNLLHGANNWOGWLGARBNNTCMLPOZBNRMSJJMVAMTDJLGAAPULABEFPDVEBQCNAV | MTLBCJBNNLANJPTNLLHGANNWOGWLGARBNNTCMLPOZBNRMSJJMVAMTDJLGAAPULABEFPDVEBQCNAV | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-v3-0029 | 20 8 5 18 5 4 3 15 1 20 19 1 18 5 3 15 13 9 14 7 | 20 8 5 18 5 4 3 15 1 20 19 1 18 5 3 15 13 9 14 7 | THE REDCOATS ARE COMING | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 29 | 48 | cipher_museum | 2.0 | public | null | null |
cda-0009510 | NEHGR TBEQR JBEXF BAYLJ VRAGU NXRLF COQRV FFZOY Y | NEHGR TBEQR JBEXF BAYLJ VRAGU NXRLF COQRV FFZOY Y | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | porta | porta | null | {
"key": "CIPHER"
} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
rail-fence-115 | EYRAEREYEAAWETRVRSCEHSKEEADVRCDHSBEKRHSESHTUHEETAPNEOAREOKET | EYRAEREYEAAWETRVRSCEHSKEEADVRCDHSBEKRHSESHTUHEETAPNEOAREOKET | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 3
} | intermediate | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
m209-v2-0156 | HVMCOQWKDJAKKUBVCKA | HVMCOQWKDJAKKUBVCKA | WISDOM GUARDS THE GATE | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0009998 | PYNF FVPN YPVC UREF GRNP UJUL ZBQR EAFR PHEV GLZN GGRE FRAG EBCL ZRNF HERF HAPR EGNV AGLV ANQV FGEV OHGV BASE VRQZ NARF GVZN GRQX RLYR ATGU SEBZ FGNG VFGV PFQV TENC UNAQ GEVT ENCU SERD HRAP VRFR KCBF RFVZ CYRP VCUR EFGB ZBEE BJ | PYNF FVPN YPVC UREF GRNP UJUL ZBQR EAFR PHEV GLZN GGRE FRAG EBCL ZRNF HERF HAPR EGNV AGLV ANQV FGEV OHGV BASE VRQZ NARF GVZN GRQX RLYR ATGU SEBZ FGNG VFGV PFQV TENC UNAQ GEVT ENCU SERD HRAP VRFR KCBF RFVZ CYRP VCUR EFGB ZBEE BJ | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS TOMORROW | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 182 | 182 | synthetic_educational | null | null | [] | |
cda-0002518 | AVRMF WXESN PRMKQ NFSVP GQVEH UINML WDYJM FDDNM LOUAH VVCIP SEUUP WIRUT LTXTG YESTW MWYSR HVYQI KXRKN EXLEI UHMXT VVAPJ TPSAH FEEQF TIVXF NHZZX MDBK | AVRMF WXESN PRMKQ NFSVP GQVEH UINML WDYJM FDDNM LOUAH VVCIP SEUUP WIRUT LTXTG YESTW MWYSR HVYQI KXRKN EXLEI UHMXT VVAPJ TPSAH FEEQF TIVXF NHZZX MDBK | THE INDEX OF COINCIDENCE IS A USEFUL CLUE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | autokey | autokey | null | {
"primer": "HONEST"
} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
vic-v2-0254 | 3955478051888789881875808478783381 | 3955478051888789881875808478783381 | EXTRACTION POINT CHANGED | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0018 | MWWIBFKQAOTNL | MWWIBFKQAOTNL | AWAIT MY SIGNAL | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0014102 | .- / - .-. .- -. ... .--. .- .-. . -. - / - --- --- .-.. / ... .... --- ..- .-.. -.. / ... .... --- .-- / .. - ... / .-. . .- ... --- -. .. -. --. / - .... . / . -. .. --. -- .- / -- .- -.-. .... .. -. . / ..- ... . -.. / .-. --- - --- .-. ... / - --- / -.-. .-. . .- - . / .- / .--. --- .-.. -.-- .- .-.. .--. .... .- -... | .- / - .-. .- -. ... .--. .- .-. . -. - / - --- --- .-.. / ... .... --- ..- .-.. -.. / ... .... --- .-- / .. - ... / .-. . .- ... --- -. .. -. --. / - .... . / . -. .. --. -- .- / -- .- -.-. .... .. -. . / ..- ... . -.. / .-. --- - --- .-. ... / - --- / -.-. .-. . .- - . / .- / .--. --- .-.. -.-- .- .-.. .--. .... .- -... | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | morse_code | morse_code | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
kama-sutra-161 | UZJ GFV RMUV EFAW XFAGVWE XUG PF OFW EFA QAV RMUV EFA XUG PF | UZJ GFV RMUV EFAW XFAGVWE XUG PF OFW EFA QAV RMUV EFA XUG PF | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 47 | 60 | cipher_museum | 0.2 | public | null | null |
beaufort-281 | KMOJAYHDEFYAXMIQEJVAFIELTAMPTGKCNXKOXYDQDJIELTA | KMOJAYHDEFYAXMIQEJVAFIELTAMPTGKCNXKOXYDQDJIELTA | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
geez-monastic-v2-0103 | LAJPOCPUUPIHMAPUMJQJYZJIHNMOHULNMDJBLIYUTPLQAJUPBIPKPYLUYBULMNQLYHBUXMHOVHBIHBAW | LAJPOCPUUPIHMAPUMJQJYZJIHNMOHULNMDJBLIYUTPLQAJUPBIPKPYLUYBULMNQLYHBUXMHOVHBIHBAW | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
wheatstone-099 | RMQTULERCVMQSTBEIMJHCLHTBEIQCVEWBMHCQETMCPT | RMQTULERCVMQSTBEIMJHCLHTBEIQCVEWBMHCQETMCPT | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
cda-0008699 | AOLNSOVNURAOUOSAENSSASNAESNICMEBUTUHLAITTYTGIETGDEAALTSLOLSNEOXRCMDREEHNDEPHDWROGPDX | AOLNSOVNURAOUOSAENSSASNAESNICMEBUTUHLAITTYTGIETGDEAALTSLOLSNEOXRCMDREEHNDEPHDWROGPDX | A STRONG CLAIM NEEDS STRONG EVIDENCE HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS TODAY | scytale | scytale | null | {
"cols": 4
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
tap-code-v2-0016 | . ... ... .... . .... . ..... . .... ... .. . ..... .... ... .... ... . . .. .. . ..... .. . ... .... ... . ... . ... .... ..... .. .... ... | . ... ... .... . .... . ..... . .... ... .. . ..... .... ... .... ... . . .. .. . ..... .. . ... .... ... . ... . ... .... ..... .. .... ... | CODED MESSAGE FOLLOWS | tap_code | tap_code | substitution | {
"type": "none",
"value": null
} | beginner | en | 103 | 176 | cipher_museum | 2.0 | public | null | null |
cda-0019698 | 812 840 858 852 844 847 872 999 838 814 801 854 860 853 813 854 999 862 840 808 812 851 858 801 825 841 858 872 999 825 841 999 800 999 810 824 856 857 853 824 803 861 857 825 844 840 999 800 999 836 842 810 812 833 999 808 800 841 999 806 834 800 855 856 826 817 874 999 846 801 858 858 812 852 839 854 999 803 862 859 ... | 812 840 858 852 844 847 872 999 838 814 801 854 860 853 813 854 999 862 840 808 812 851 858 801 825 841 858 872 999 825 841 999 800 999 810 824 856 857 853 824 803 861 857 825 844 840 999 800 999 836 842 810 812 833 999 808 800 841 999 806 834 800 855 856 826 817 874 999 846 801 858 858 812 852 839 854 999 803 862 859 ... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | culper_ring | culper_ring | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0008246 | ARSOSDNMLEIIIEWNYGAOALIIOTOMSHRCOSQEECEOWHETRNOINXIATUTNASYEAOILNMITSODTCMTLCRETSDOITUTANTLSNFEUENILCEOUTENEHTSEXADERDAIABCRRNCGRDOSPOSEIOCEFYUSPCEIRULPIXXRLTCSTRHHSTDRSEINAHLA | ARSOSDNMLEIIIEWNYGAOALIIOTOMSHRCOSQEECEOWHETRNOINXIATUTNASYEAOILNMITSODTCMTLCRETSDOITUTANTLSNFEUENILCEOUTENEHTSEXADERDAIABCRRNCGRDOSPOSEIOCEFYUSPCEIRULPIXXRLTCSTRHHSTDRSEINAHLA | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 176 | 176 | synthetic_educational | null | null | [] | |
cda-0015019 | 20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 2 5 1 21 6 15 18 20 9 19 20 8 5 18 5 3 9 16 18 15 3 1 12 15 6 22 9 7 5 14 5 18 5 1 14 4 4 5 3 18 25 16 20 19 9 20 19 5 12 6 4 9 6 6 9 5 1 14 4 8 5 12 12 13 1 14 9 14 20 18 15 4 21 3 5 4 16 21 ... | 20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 2 5 1 21 6 15 18 20 9 19 20 8 5 18 5 3 9 16 18 15 3 1 12 15 6 22 9 7 5 14 5 18 5 1 14 4 4 5 3 18 25 16 20 19 9 20 19 5 12 6 4 9 6 6 9 5 1 14 4 8 5 12 12 13 1 14 9 14 20 18 15 4 21 3 5 4 16 21 ... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 214 | 214 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
copiale-v3-0035 | B1 L1 R8 Y0 C5 X2 N2 C9 M6 Y0 O1 O6 I8 | B1 L1 R8 Y0 C5 X2 N2 C9 M6 Y0 O1 O6 I8 | THE APPLE FALLS | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 26 | 38 | cipher_museum | 2.0 | public | null | null |
four-square-177 | UNPKOUOOPYGHPGTGOAUYIX | UNPKOUOOPYGHPGTGOAUYIX | SUPPLY LINE COMPROMISED | four_square | four_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 22 | 22 | cipher_museum | 0.2 | public | null | null |
m94-v2-0176 | NDXLUZPOPRYVITJLSUOXIFZYUWMPFGYICDEOVDDOVBNMGVTOZQBHBGJLMOONVEGWMWATHXI | NDXLUZPOPRYVITJLSUOXIFZYUWMPFGYICDEOVDDOVBNMGVTOZQBHBGJLMOONVEGWMWATHXI | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | m94 | m94 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0396 | INWRRRDITWGCR | INWRRRDITWGCR | AWAIT MY SIGNAL | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0026 | LFFQ ZPVS QPXEFS ESZ | LFFQ ZPVS QPXEFS ESZ | KEEP YOUR POWDER DRY | caesar | caesar | substitution | {
"type": "shift",
"value": 1
} | beginner | en | 17 | 20 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0372 | SDANUKTBJAKSBHMPLRHAJLNILJJUKEIBSELKEQSDBSLNPAMPLTUIEKCBSLKAMLEKSAESDAPAXBISHYLPBMMPLXEJBSAHYBJAQQBCAQAHAISATBSBKLSDAPMLEKSNPAOUAKSHYSDAJAQQBCAQDBVAJABKEKCBKTPANAPSLMDYQEIBHILKIAMSQ | SDANUKTBJAKSBHMPLRHAJLNILJJUKEIBSELKEQSDBSLNPAMPLTUIEKCBSLKAMLEKSAESDAPAXBISHYLPBMMPLXEJBSAHYBJAQQBCAQAHAISATBSBKLSDAPMLEKSNPAOUAKSHYSDAJAQQBCAQDBVAJABKEKCBKTPANAPSLMDYQEIBHILKIAMSQ | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
cda-0012718 | 36 50 57 57 52 50 65 36 82 80 59 61 82 61 57 50 29 82 68 80 68 57 25 82 20 80 68 66 69 82 29 52 80 43 65 66 20 57 69 52 55 61 69 76 57 82 66 66 82 80 61 68 57 68 29 66 59 80 50 29 25 20 80 69 55 82 82 29 50 25 77 68 89 50 66 36 52 80 50 20 61 68 29 11 66 36 82 20 69 77 20 82 77 68 52 36 50 29 82 76 80 82 72 59 82 29 52... | 36 50 57 57 52 50 65 36 82 80 59 61 82 61 57 50 29 82 68 80 68 57 25 82 20 80 68 66 69 82 29 52 80 43 65 66 20 57 69 52 55 61 69 76 57 82 66 66 82 80 61 68 57 68 29 66 59 80 50 29 25 20 80 69 55 82 82 29 50 25 77 68 89 50 66 36 52 80 50 20 61 68 29 11 66 36 82 20 69 77 20 82 77 68 52 36 50 29 82 76 80 82 72 59 82 29 52... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | wallis_cipher | wallis_cipher | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
straddling-checkerboard-v3-0204 | 1292994722302894670837035232262696742352637202292163407692121382214256362696299751292076742612126742321949662623592923612923741006269616526372022202321329239724173238590097462615219623253812190129702389617323222324142352938902272676 | 1292994722302894670837035232262696742352637202292163407692121382214256362696299751292076742612126742321949662623592923612923741006269616526372022202321329239724173238590097462615219623253812190129702389617323222324142352938902272676 | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 232 | 232 | cipher_museum | 2.0 | public | null | null |
cda-0014509 | AAABA ABBAB ABABA BAABB ABABB ABBAA AAAAA BAAAA BAABA BAAAA AAAAA ABBAA BAAAB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA BAAAA AABAA AAAAA AAABB BAAAB AAABA ABBAB ABABA BAABB ABABB ABBAA BAAAB ABAAA ABBAA ABAAB AABAA BABBA ABBAB BAAAA AAABB AABAA BAAAA ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AA... | AAABA ABBAB ABABA BAABB ABABB ABBAA AAAAA BAAAA BAABA BAAAA AAAAA ABBAA BAAAB ABBBA ABBAB BAAAB ABAAA BAABA ABAAA ABBAB ABBAA BAAAA AABAA AAAAA AAABB BAAAB AAABA ABBAB ABABA BAABB ABABB ABBAA BAAAB ABAAA ABBAA ABAAB AABAA BABBA ABBAB BAAAA AAABB AABAA BAAAA ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AA... | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | bacon_cipher | bacon_cipher | null | {} | hard | en | 445 | 445 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
m209-v3-0173 | ADNJUPODLWMHZYMUCKMNZAVYKBKQRGYLUMNIWXNCLLLDSKZSAAJUQQRGXMHBMJJPEPKPYVAPRRWVAKVQX | ADNJUPODLWMHZYMUCKMNZAVYKBKQRGYLUMNIWXNCLLLDSKZSAAJUQQRGXMHBMJJPEPKPYVAPRRWVAKVQX | DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0003150 | TISBICRIOERRATSNNILINNOHVPENOAOLYCIYEEIOTCFSANEEAFGLNNUOKNSMCFWHAYBLGDSTOCUSRMRHCTMUESMNPUSTETTRLMPENDOIHURNAACATOOTUEEANOASEFPESEELMLTIBDEDRMIASDIRFLSTEMGOATTEACINAMRISNKSEYBVYODSECWYTESKSTTCKEPSSEEKRESRARX | TISBICRIOERRATSNNILINNOHVPENOAOLYCIYEEIOTCFSANEEAFGLNNUOKNSMCFWHAYBLGDSTOCUSRMRHCTMUESMNPUSTETTRLMPENDOIHURNAACATOOTUEEANOASEFPESEELMLTIBDEDRMIASDIRFLSTEMGOATTEACINAMRISNKSEYBVYODSECWYTESKSTTCKEPSSEEKRESRARX | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG TODAY | scytale | scytale | null | {
"cols": 9
} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
fialka-v3-0025 | GPMTWDKNQBZYASD | GPMTWDKNQBZYASD | CHART THE UNKNOWN | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0006548 | ORNHSBEG VF GUR ERPVCEBPNY BS IVTRARER NAQ QRPELCGF VGFRYS PBYHZANE GENAFCBFVGVBA ERNQF PBYHZAF VA XRL BEQRE CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | ORNHSBEG VF GUR ERPVCEBPNY BS IVTRARER NAQ QRPELCGF VGFRYS PBYHZANE GENAFCBFVGVBA ERNQF PBYHZAF VA XRL BEQRE CHOYVP VASENFGEHPGHER QRFREIRF PNERSHY QRFVTA GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE VIGENERE CIPHER USES A REPEATING KEYWORD | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 172 | 172 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0019324 | CLAG IAIH AKHA DIBE HYAZ ZIET SAHA SZIH WOLL ACHE EDIB EHYA ZZIE CLAG IAIH LINW OLLA CHEE SHUS HDZE HTHA NZIE TKIN MOAS IMOA SITK INCL AGIA IHLI NDZE HGAH DIBE HNOD AIHD IBEH DZEH NAAS TSOS INOD AIHD IBEH YAZZ IETH ANZI ETKI NCLA GIAI HDIB EHYA ZZIE DZEH WOLL ACHE EDIB EHYA ZZIE CLAG IAIH LINW OLLA CHEE SHUS HDZE HTHA ... | CLAG IAIH AKHA DIBE HYAZ ZIET SAHA SZIH WOLL ACHE EDIB EHYA ZZIE CLAG IAIH LINW OLLA CHEE SHUS HDZE HTHA NZIE TKIN MOAS IMOA SITK INCL AGIA IHLI NDZE HGAH DIBE HNOD AIHD IBEH DZEH NAAS TSOS INOD AIHD IBEH YAZZ IETH ANZI ETKI NCLA GIAI HDIB EHYA ZZIE DZEH WOLL ACHE EDIB EHYA ZZIE CLAG IAIH LINW OLLA CHEE SHUS HDZE HTHA ... | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE A TRANSPARENT TOOL SHOULD SHOW ITS REASONING THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | navajo_code | navajo_code | null | {} | hard | en | 260 | 260 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
purple-v2-0092 | ILNBQJDSZNTPTPHDKFXRCDWCAIPAFDFZZIQXZESZFZJKVDAWKOKVDEMHHBINOJZEIHFYXDBATOXPMD | ILNBQJDSZNTPTPHDKFXRCDWCAIPAFDFZZIQXZESZFZJKVDAWKOKVDEMHHBINOJZEIHFYXDBATOXPMD | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0138 | GDDDAXAFADDFGFGXGAFXAGDGDGGAGAAXAGAAAXDXAXDD | GDDDAXAFADDFGFGXGAFXAGDGDGGAGAAXAGAAAXDXAXDD | MESSAGE RECEIVED CLEARLY | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 44 | 44 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0114 | 09904 09993 09906 09999 09907 09904 09993 09906 09999 09999 09992 09999 09907 09908 09906 09999 | 09904 09993 09906 09999 09907 09904 09993 09906 09999 09999 09992 09999 09907 09908 09906 09999 | PER ASPERA AD ASTRA | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
purple-v2-0234 | KWYZMTFNMORIHPWQHLNPOMNCEFWCIDMIHUQOLEQFGWAGHJQBQEDDTUGNKFRXIBNQXCKPJGXWGRCTAMJZRKXDLYJWEQOGZYQNRYAHIZZGQRXTHKWVDZUGXMMWGVWDHIDRQONXWRNUESXFLTX | KWYZMTFNMORIHPWQHLNPOMNCEFWCIDMIHUQOLEQFGWAGHJQBQEDDTUGNKFRXIBNQXCKPJGXWGRCTAMJZRKXDLYJWEQOGZYQNRYAHIZZGQRXTHKWVDZUGXMMWGVWDHIDRQONXWRNUESXFLTX | 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 | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
enigma-v2-0312 | GMEANQGQMNPWJGRHEADTHIYJAPBFVWKANJMWAKGZISIWCEDKWFDDVCQXFAZNVHWUVHKFF | GMEANQGQMNPWJGRHEADTHIYJAPBFVWKANJMWAKGZISIWCEDKWFDDVCQXFAZNVHWUVHKFF | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0020680 | 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17 21 1 18 5 23 9 20 8 20 18 1 14 19 16 15 19 9 20 9 15 14 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 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... | 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17 21 1 18 5 23 9 20 8 20 18 1 14 19 16 15 19 9 20 9 15 14 1 19 20 18 15 14 7 3 12 1 9 13 14 5 5 4 19 19 20 18 15 14 7 5 22 9 4 5 14 3 5 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... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION A STRONG CLAIM NEEDS STRONG EVIDENCE PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 129 | 129 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0017912 | 814 839 858 851 842 845 874 999 837 812 801 854 861 853 814 855 999 861 841 807 814 853 858 801 825 841 857 874 999 825 840 999 802 999 809 826 856 857 852 826 805 861 859 825 842 841 999 847 844 834 873 805 824 860 856 999 813 840 806 842 810 813 809 999 835 814 857 858 813 852 854 999 802 855 999 847 802 826 851 854 ... | 814 839 858 851 842 845 874 999 837 812 801 854 861 853 814 855 999 861 841 807 814 853 858 801 825 841 857 874 999 825 840 999 802 999 809 826 856 857 852 826 805 861 859 825 842 841 999 847 844 834 873 805 824 860 856 999 813 840 806 842 810 813 809 999 835 814 857 858 813 852 854 999 802 855 999 847 802 826 851 854 ... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | culper_ring | culper_ring | null | {} | hard | en | 213 | 213 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
two-square-084 | CZACUATEOLCGBUPZ | CZACUATEOLCGBUPZ | EVACUATE THE BASE | two_square | two_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
solitaire-v3-0267 | OUEMMNDVRMZYITALUOKGYWPYCVUBXUDDUGEFQXQVAZYUNQOWCCOIJDHATYYSPBGPGGRNLWJBBQ | OUEMMNDVRMZYITALUOKGYWPYCVUBXUDDUGEFQXQVAZYUNQOWCCOIJDHATYYSPBGPGGRNLWJBBQ | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0097 | DDGXXDDXGXDGFAFGAAAGDGDDFAAAAAAAGAAADGDAAFFFGGGGAFXDDGGFDAGDFXXFFAXGAXXFFDAAAGAGGFFGGAFAFXAAFAFFFAAFGGGAGDFGFGGAGFAFAAGAFFFAGFGXDAXGGDFXXAFGAAGDXG | DDGXXDDXGXDGFAFGAAAGDGDDFAAAAAAAGAAADGDAAFFFGGGGAFXDDGGFDAGDFXXFFAXGAXXFFDAAAGAGGFFGGAFAFXAAFAFFFAAFGGGAGDFGFGGAGFAFAAGAFFFAGFGXDAXGGDFXXAFGAAGDXG | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
bifid-060 | RKEYTDGBPHEYZCXDQURT | RKEYTDGBPHEYZCXDQURT | RENDEZVOUS AT MIDNIGHT | bifid | bifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cda-0015831 | UBVG DFFM IMTC YJHD FALY PDBO IYKF SPPO UNBY YMQW IZGH DLXF | UBVG DFFM IMTC YJHD FALY PDBO IYKF SPPO UNBY YMQW IZGH DLXF | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | one_time_pad | one_time_pad | null | {} | medium | en | 48 | 48 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0019557 | SHXA QVPA AWEG VGTG VELQ DNCW OPJN XUBQ AEBG QEJF YCJL WGAC DDJY MGYV TJRV RBUO FNHF XCWF DFXG NRTG XFWH FISS YOXB GIBA TJWN YAGF EAJA LTKL LZQS IRRS YMPC FPPD BZYE XMHY UOOU LZXO DEYB FODI HRXX XTBH KWUV HXLC RQZD OXKM YXBJ EXWO UOTG SFJK CVGE DYIR FOBJ TTVZ BCY | SHXA QVPA AWEG VGTG VELQ DNCW OPJN XUBQ AEBG QEJF YCJL WGAC DDJY MGYV TJRV RBUO FNHF XCWF DFXG NRTG XFWH FISS YOXB GIBA TJWN YAGF EAJA LTKL LZQS IRRS YMPC FPPD BZYE XMHY UOOU LZXO DEYB FODI HRXX XTBH KWUV HXLC RQZD OXKM YXBJ EXWO UOTG SFJK CVGE DYIR FOBJ TTVZ BCY | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | vernam | vernam | null | {} | hard | en | 211 | 211 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
sigaba-v3-0237 | GUDYJOZXQVWEOFIXAWWM | GUDYJOZXQVWEOFIXAWWM | THE REDCOATS ARE COMING | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
two-square-127 | OPRPGAHPOSEGLGCV | OPRPGAHPOSEGLGCV | OPERATION BEGINS | two_square | two_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0054 | TNFXJAQHRKJQJFTLLNJOOROQHRNTKKTHTIIJLCQJIYPHQTEOJDSQROYDRILRYOYFKRNTQYURIJV | TNFXJAQHRKJQJFTLLNJOOROQHRNTKKTHTIIJLCQJIYPHQTEOJDSQROYDRILRYOYFKRNTQYURIJV | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0017482 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | wallis_cipher | wallis_cipher | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
nihilist-v3-0282 | 46 57 57 24 48 67 75 65 25 67 43 24 47 75 27 48 67 22 58 36 54 36 25 58 22 35 38 74 48 25 88 63 36 37 63 67 57 59 56 36 38 43 35 25 67 43 54 68 44 44 25 67 54 27 59 54 24 59 88 44 34 57 55 38 46 68 53 44 67 75 24 57 78 43 64 38 73 24 57 79 24 64 57 86 56 28 68 53 45 78 53 45 39 56 43 44 57 74 44 25 67 43 55 70 54 36 55... | 46 57 57 24 48 67 75 65 25 67 43 24 47 75 27 48 67 22 58 36 54 36 25 58 22 35 38 74 48 25 88 63 36 37 63 67 57 59 56 36 38 43 35 25 67 43 54 68 44 44 25 67 54 27 59 54 24 59 88 44 34 57 55 38 46 68 53 44 67 75 24 57 78 43 64 38 73 24 57 79 24 64 57 86 56 28 68 53 45 78 53 45 39 56 43 44 57 74 44 25 67 43 55 70 54 36 55... | FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 320 | 479 | cipher_museum | 2.0 | public | null | null |
cda-0018847 | 20 8 5 11 1 19 9 19 11 9 5 24 1 13 9 14 1 20 9 15 14 6 9 14 4 19 18 5 16 5 1 20 5 4 20 18 9 7 18 1 13 19 9 14 3 9 16 8 5 18 20 5 24 20 16 5 18 8 1 16 19 | 20 8 5 11 1 19 9 19 11 9 5 24 1 13 9 14 1 20 9 15 14 6 9 14 4 19 18 5 16 5 1 20 5 4 20 18 9 7 18 1 13 19 9 14 3 9 16 8 5 18 20 5 24 20 16 5 18 8 1 16 19 | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT PERHAPS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 61 | 61 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
lorenz-v2-0364 | HEADQUARTERSFIRSTARMYCORPSORDERSFOROCTOBERFOURTHNINETEENEIGHTEENTHECORPSWILLATTACKATZEROHOURWITHALLAVAILABLEFORCESTHEOBJECTIVEISTHERIDGEOVERLOOKINGTHEARGONNEFOREST | HEADQUARTERSFIRSTARMYCORPSORDERSFOROCTOBERFOURTHNINETEENEIGHTEENTHECORPSWILLATTACKATZEROHOURWITHALLAVAILABLEFORCESTHEOBJECTIVEISTHERIDGEOVERLOOKINGTHEARGONNEFOREST | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0269 | TPEQEVGURUQC | TPEQEVGURUQC | IN GOD WE TRUST | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0022 | NDUDNVNJSTTRMJKO | NDUDNVNJSTTRMJKO | DIVIDE AND CONQUER | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
running-key-v2-0026 | PSYGQQIVPBZVIMHEW | PSYGQQIVPBZVIMHEW | KEEP YOUR POWDER DRY | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0012697 | JIMWT GAURN JZXPV EAUPW SHMTV PMSPO KRIYN VKXHL TTMCJ GRBWI WVHPG UHUTH ZYKEY ISBMV GXXWQ RENOT WPVJZ | JIMWT GAURN JZXPV EAUPW SHMTV PMSPO KRIYN VKXHL TTMCJ GRBWI WVHPG UHUTH ZYKEY ISBMV GXXWQ RENOT WPVJZ | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | one_time_pad | one_time_pad | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
babington-v2-0007 | ⟨a14⟩ ⟨a13⟩ ⟨w21⟩ ⟨a11⟩ ⟨a13⟩ ⟨w21⟩ ⟨a07⟩ ⟨a11⟩ ⟨w06⟩ ⟨w34⟩ ⟨w04⟩ ⟨a13⟩ ⟨a11⟩ ⟨w20⟩ | ⟨a14⟩ ⟨a13⟩ ⟨w21⟩ ⟨a11⟩ ⟨a13⟩ ⟨w21⟩ ⟨a07⟩ ⟨a11⟩ ⟨w06⟩ ⟨w34⟩ ⟨w04⟩ ⟨a13⟩ ⟨a11⟩ ⟨w20⟩ | ENEMY RETREATS NORTH | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 70 | 83 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1333 | NBY JIQYLM HIN XYFYAUNYX NI NBY OHCNYX MNUNYM VS NBY WIHMNCNONCIH ULY LYMYLPYX NI NBY MNUNYM | NBY JIQYLM HIN XYFYAUNYX NI NBY OHCNYX MNUNYM VS NBY WIHMNCNONCIH ULY LYMYLPYX NI NBY MNUNYM | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 77 | 92 | cipher_museum | 2.0 | public | null | null |
cda-0005005 | GURXN FVFXV RKNZV ANGVB ASVAQ FERCR NGRQG EVTEN ZFVAP VCURE GRKGV AQRKB SPBVA PVQRA PRZRN FHERF YRGGR ESERD HRAPL QVFGE VOHGV BA | GURXN FVFXV RKNZV ANGVB ASVAQ FERCR NGRQG EVTEN ZFVAP VCURE GRKGV AQRKB SPBVA PVQRA PRZRN FHERF YRGGR ESERD HRAPL QVFGE VOHGV BA | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 107 | 107 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0021569 | URBX HDNJ SJWA TEET EBIY VQBT HHQG VMTX TBKK NJUL IMVT AVRC CHWI JOUF VYWY WTCH KLEK XDUO BPIL NUVH XAEY BKNZ XMNV QRGT TBRK LEBR GAZX CXCL XIYZ RVTF TTHN ELXT NEUO AGBK IWCQ RSPN UPZP GSPF JFTE DHIE PRKW ABIY TAEF RLMX WHUQ LQQ | URBX HDNJ SJWA TEET EBIY VQBT HHQG VMTX TBKK NJUL IMVT AVRC CHWI JOUF VYWY WTCH KLEK XDUO BPIL NUVH XAEY BKNZ XMNV QRGT TBRK LEBR GAZX CXCL XIYZ RVTF TTHN ELXT NEUO AGBK IWCQ RSPN UPZP GSPF JFTE DHIE PRKW ABIY TAEF RLMX WHUQ LQQ | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS ATBASH ENCODES BY REVERSING THE ALPHABET ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | running_key | running_key | null | {} | hard | en | 183 | 183 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
red-type-a-v3-0346 | IRJYPELXEFURVEHBM | IRJYPELXEFURVEHBM | OLD IRONSIDES HOLDS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0221 | MLSFYMBMDSBLPYTEQAKIUUYUC | MLSFYMBMDSBLPYTEQAKIUUYUC | THE CASTLE IS SURROUNDED | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-1500 | OHLHFITSSWDRDHUVYZTAVNFOITIYHYZYPOIJFZIIGOCRFIEEVFPSLBUZIRVKCUYRIZDLBUNIIHPOHCSVVLWDVMSZBJCEWRRNSWOMZSHWKCIYOETSEOKZIYFVWEWZZJNLURDNDHKCEFBZOEOGKVTPGJCAWZSZFCSV | OHLHFITSSWDRDHUVYZTAVNFOITIYHYZYPOIJFZIIGOCRFIEEVFPSLBUZIRVKCUYRIZDLBUNIIHPOHCSVVLWDVMSZBJCEWRRNSWOMZSHWKCIYOETSEOKZIYFVWEWZZJNLURDNDHKCEFBZOEOGKVTPGJCAWZSZFCSV | THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "VALOR"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0503 | BLCIIYDTTPRQ | BLCIIYDTTPRQ | IN GOD WE TRUST | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0024 | OUEAXIIOTDZFUWMN | OUEAXIIOTDZFUWMN | THE WALLS HAVE EARS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
playfair-v3-0625 | FBOTNDLAXALRFEARLMDNKNASHDPIRPNEFHWDOLHOKPQOOAITFERPPIRPFWFHIRANUHURLMENQMOW | FBOTNDLAXALRFEARLMDNKNASHDPIRPNEFHWDOLHOKPQOOAITFERPPIRPFWFHIRANUHURLMENQMOW | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0011 | GDMYFXUUQEFRUUDRJJG | GDMYFXUUQEFRUUDRJJG | AVE MARIA GRATIA PLENA | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0160 | QNEDGOFFJJEO+TJVQ | QNEDGOFFJJEO+TJVQ | NOVUS ORDO SECLORUM | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0649 | CONTACETDHAAMSNBEE | CONTACETDHAAMSNBEE | CONTACT HAS BEEN MADE | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0132 | STAYTHECOURSE | STAYTHECOURSE | STAY THE COURSE | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0309 | 5814 4680 5563 4614 4934 4154 4871 4680 4298 4427 5563 5060 5814 4154 5397 4361 4998 5060 4998 4427 5814 4680 5563 4614 4298 4614 4154 5397 4680 5563 5963 4489 5060 5397 4154 4871 4871 4871 4427 5563 5645 5488 4216 4680 4998 4361 5645 5166 5563 4614 4427 4998 4154 5563 4680 5060 4998 5488 5814 5060 5645 4998 4361 5488 ... | 5814 4680 5563 4614 4934 4154 4871 4680 4298 4427 5563 5060 5814 4154 5397 4361 4998 5060 4998 4427 5814 4680 5563 4614 4298 4614 4154 5397 4680 5563 5963 4489 5060 5397 4154 4871 4871 4871 4427 5563 5645 5488 4216 4680 4998 4361 5645 5166 5563 4614 4427 4998 4154 5563 4680 5060 4998 5488 5814 5060 5645 4998 4361 5488 ... | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "14142"
} | expert | en | 284 | 354 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1552 | HILNB MNUL BIFXM ZCLG WIOLMY | HILNB MNUL BIFXM ZCLG WIOLMY | NORTH STAR HOLDS FIRM COURSE | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 24 | 28 | cipher_museum | 2.0 | public | null | null |
hill-v3-0399 | DMSWDBAYYIEKBLVHLXBVNNSNZHPFUUSOVMWSRBZHXGGGWKFKUOWTFRZREEUYURSEZPSWSCPSFJUYCFDT | DMSWDBAYYIEKBLVHLXBVNNSNZHPFUUSOVMWSRBZHXGGGWKFKUOWTFRZREEUYURSEZPSWSCPSFJUYCFDT | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0116 | QGL ECVM UZ DA ZGLBGLVM U ZGYEE XCQ KYXQ GL DYWLQG DL QC EUL MCKX UX HVLLX BYZQIVLZ GL ELYMLQG DL PLZUML QGL ZQUEE KYQLVZ GL VLZQCVLQG DA ZCIE GL ELYMLQG DL UX QGL BYQGZ CJ VUHGQLCIZXLZZ JCV GUZ XYDL ZYWL | QGL ECVM UZ DA ZGLBGLVM U ZGYEE XCQ KYXQ GL DYWLQG DL QC EUL MCKX UX HVLLX BYZQIVLZ GL ELYMLQG DL PLZUML QGL ZQUEE KYQLVZ GL VLZQCVLQG DA ZCIE GL ELYMLQG DL UX QGL BYQGZ CJ VUHGQLCIZXLZZ JCV GUZ XYDL ZYWL | 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 | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 164 | 204 | cipher_museum | 2.0 | public | null | null |
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