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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
purple-v2-0285 | PGUZWKEUWHLII | PGUZWKEUWHLII | ANNUIT COEPTIS | purple | purple | machine | {
"type": "seed",
"value": "SAKURA"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0017010 | . .... ... .... ... ... ... .... .... .... . ... ... .... ... ... .. . .... ..... .... ... . ..... ... .... . .. .. . .... ..... .... ... . ... . . .... .... .. .... ... .... ... ... ..... .. .. .... .... .... .. ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... | . .... ... .... ... ... ... .... .... .... . ... ... .... ... ... .. . .... ..... .... ... . ..... ... .... . .. .. . .... ..... .... ... . ... . . .... .... .. .... ... .... ... ... ..... .. .. .... .... .... .. ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE MESSAGE WAS HIDDEN BUT NOT SECURE | tap_code | tap_code | null | {} | hard | en | 109 | 109 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
m209-253 | YQZSDYPLBYMOABL | YQZSDYPLBYMOABL | ENEMY FORCES NEAR | m209 | m209 | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
caesar-fr-014 | CX IXGLX WHGV CX LNBL | CX IXGLX WHGV CX LNBL | JE PENSE DONC JE SUIS | caesar | caesar | substitution | {
"type": "shift",
"value": 19
} | beginner | fr | 17 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0004736 | TENCNOASENREWOWERKHWBUASDIREUAOGANEIEAURRISNTRSTRRRCFNMSTETTCKHEEIDADEUGEHNCRIOEECSNCPSALXSIOOAOLYVIAGRHPNTXSDTLNNUOIPRKYYADHXADSUSRMRGHEEPRTCIXGEEMPENDEEPYTEIANX | TENCNOASENREWOWERKHWBUASDIREUAOGANEIEAURRISNTRSTRRRCFNMSTETTCKHEEIDADEUGEHNCRIOEECSNCPSALXSIOOAOLYVIAGRHPNTXSDTLNNUOIPRKYYADHXADSUSRMRGHEEPRTCIXGEEMPENDEEPYTEIANX | THE MESSAGE WAS HIDDEN BUT NOT SECURE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE VIGENERE CIPHER USES A REPEATING KEYWORD CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | scytale | scytale | null | {
"cols": 9
} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
m209-v2-0010 | DNTYVCYAJJNQGZAELACHR | DNTYVCYAJJNQGZAELACHR | BRIDGE DESTROYED AT DAWN | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0051 | ╳ ╳• ┤• ┐• ┤• ⌐ ├ ╲ ├ ┐ ╲• ┼ ┐• ┌ ┼ ├ ┐ ┼• ⌐ ▽ ┼ ¬• ¬• ┤• ╳• ╳• ┤• ┤• ├ ⌐ ┼• ├ ╲ ┤• ┐• ┐• ▽ ┐ ¬ ┤• ╱ ¬• ├ ┼• ┤• ╳ ╳ ┐• ⌐ ╲• ┼ ¬• ┴ ┤• ╳ ┬ ⌐ ┼• ├ ┴ ┼ ┤• ┼• ┼ ╳ ┐• ⌐ ╲• ┼ ¬• ┼ ┐• | ╳ ╳• ┤• ┐• ┤• ⌐ ├ ╲ ├ ┐ ╲• ┼ ┐• ┌ ┼ ├ ┐ ┼• ⌐ ▽ ┼ ¬• ¬• ┤• ╳• ╳• ┤• ┤• ├ ⌐ ┼• ├ ╲ ┤• ┐• ┐• ▽ ┐ ¬ ┤• ╱ ¬• ├ ┼• ┤• ╳ ╳ ┐• ⌐ ╲• ┼ ¬• ┴ ┤• ╳ ┬ ⌐ ┼• ├ ┴ ┼ ┤• ┼• ┼ ╳ ┐• ⌐ ╲• ┼ ¬• ┼ ┐• | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 105 | 176 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0440 | NYTYUKMGBCUPULMXHCNWYEUCIOJNNMHSFVQSCARSGLCCSOFRCHTKYLCYJBPGDKBUXOTMVLKZEGEMM | NYTYUKMGBCUPULMXHCNWYEUCIOJNNMHSFVQSCARSGLCCSOFRCHTKYLCYJBPGDKBUXOTMVLKZEGEMM | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
diana-v3-0435 | MKAESMFBFWMKWSDPAAAW | MKAESMFBFWMKWSDPAAAW | THE ALCHEMIST SUCCEEDS | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bazeries-068 | LMRGLBKLCSCQ | LMRGLBKLCSCQ | HOLD POSITION | bazeries | bazeries | transposition | {
"type": "integer",
"value": 13
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
hill-v2-0060 | GXIYVMICRPNNAVMILOOXYOMITSXDRPQMODTFMSHHXZOXBJLBZVWUPVMANCFFNNWTRPQMYZ | GXIYVMICRPNNAVMILOOXYOMITSXDRPQMODTFMSHHXZOXBJLBZVWUPVMANCFFNNWTRPQMYZ | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0073 | 90 55 61 56 91 155 90 42 31 91 90 22 54 10 55 33 34 39 91 90 81 23 56 87 82 91 90 28 24 91 90 22 54 10 55 33 85 39 91 90 43 10 81 63 55 56 21 91 90 89 34 54 91 90 24 10 56 14 91 90 87 55 91 90 81 91 90 10 28 76 54 91 90 22 56 55 43 91 90 86 42 49 91 90 26 54 53 46 91 90 72 87 63 91 90 33 85 82 56 54 21 91 | 90 55 61 56 91 155 90 42 31 91 90 22 54 10 55 33 34 39 91 90 81 23 56 87 82 91 90 28 24 91 90 22 54 10 55 33 85 39 91 90 43 10 81 63 55 56 21 91 90 89 34 54 91 90 24 10 56 14 91 90 87 55 91 90 81 91 90 10 28 76 54 91 90 22 56 55 43 91 90 86 42 49 91 90 26 54 53 46 91 90 72 87 63 91 90 33 85 82 56 54 21 91 | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 205 | 306 | cipher_museum | 2.0 | public | null | null |
sigaba-201 | YFBWLFPBSZBTNBIFMO | YFBWLFPBSZBTNBIFMO | THE BRIDGE IS SECURED | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
red-type-a-v2-0366 | FVASYWCCOQESDLXUAYSBAXAABEELCVOIOAFOKIIJPYCGINIBWOUNALKEURZQTUFTMIDYTWBUBSICMKOIUHTMOZHYWTTEPTYWNKABIBLESSUNALEXFANIESMOBESLUOFUSYUDNJQQEASESIGRBYBONDNAVQFODBII | FVASYWCCOQESDLXUAYSBAXAABEELCVOIOAFOKIIJPYCGINIBWOUNALKEURZQTUFTMIDYTWBUBSICMKOIUHTMOZHYWTTEPTYWNKABIBLESSUNALEXFANIESMOBESLUOFUSYUDNJQQEASESIGRBYBONDNAVQFODBII | 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 | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0272 | RKFHLPKVQVAWJRLAUIYZMBJRNQTRZUDGTPBQDWTYBZOCJVZIEERVLGQCJMVJBHDZLYAWMFDUAN | RKFHLPKVQVAWJRLAUIYZMBJRNQTRZUDGTPBQDWTYBZOCJVZIEERVLGQCJMVJBHDZLYAWMFDUAN | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0082 | QGCZL KGC OYXXCQ VLDLDPLV QGL BYZQ YVL OCXMLDXLM QC VLBLYQ UQ YZ BGUECZCBGLV ZYXQYAYXY CPZLVRLM | QGCZL KGC OYXXCQ VLDLDPLV QGL BYZQ YVL OCXMLDXLM QC VLBLYQ UQ YZ BGUECZCBGLV ZYXQYAYXY CPZLVRLM | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 81 | 95 | cipher_museum | 2.0 | public | null | null |
cda-0020827 | 859 821 814 999 825 840 811 813 871 999 842 816 999 808 844 825 841 808 825 810 814 841 806 814 999 825 856 999 800 999 860 855 812 816 861 835 999 806 833 861 813 999 856 813 806 861 851 825 858 874 999 807 834 802 825 838 856 999 854 823 843 861 833 809 999 805 812 999 858 813 856 859 814 811 999 861 840 810 812 851 ... | 859 821 814 999 825 840 811 813 871 999 842 816 999 808 844 825 841 808 825 810 814 841 806 814 999 825 856 999 800 999 860 855 812 816 861 835 999 806 833 861 813 999 856 813 806 861 851 825 858 874 999 807 834 802 825 838 856 999 854 823 843 861 833 809 999 805 812 999 858 813 856 859 814 811 999 861 840 810 812 851 ... | THE INDEX OF COINCIDENCE IS A USEFUL CLUE SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | culper_ring | culper_ring | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
vernam-018 | YGTXLVISJOQCNTDV | YGTXLVISJOQCNTDV | BURN AFTER READING | vernam | vernam | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
porta-v2-0283 | ENANJZZVDUTR | ENANJZZVDUTR | VENI VIDI VICI | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "ITALY"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
hill-v2-0021 | RHWSOXGCPDAJ | RHWSOXGCPDAJ | KNOW THYSELF | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0042 | eig eoxc eig | eig eoxc eig | DOT DASH DOT | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 10 | 12 | cipher_museum | 2.0 | public | null | null |
diana-v3-0345 | NIOUNPVXUYTN | NIOUNPVXUYTN | YANKEE DOODLE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0020960 | 11.6.7 6.3.2 10.3.1 1.5.6 19.4.2 3.4.1 11.2.6 6.2.10 6.6.2 4.2.3 13.2.4 3.2.8 10.2.10 20.6.3 18.6.8 13.2.1 15.1.8 14.3.1 15.6.9 2.6.9 10.6.3 12.2.8 5.5.2 10.5.2 18.6.2 18.1.8 11.6.8 2.4.6 2.1.9 14.6.9 6.1.2 17.6.1 15.6.9 15.5.7 14.3.10 5.1.9 3.4.1 10.2.2 18.6.9 19.6.6 19.3.10 2.4.3 5.2.7 9.5.7 11.1.5 2.4.1 6.3.2 7.4.7 ... | 11.6.7 6.3.2 10.3.1 1.5.6 19.4.2 3.4.1 11.2.6 6.2.10 6.6.2 4.2.3 13.2.4 3.2.8 10.2.10 20.6.3 18.6.8 13.2.1 15.1.8 14.3.1 15.6.9 2.6.9 10.6.3 12.2.8 5.5.2 10.5.2 18.6.2 18.1.8 11.6.8 2.4.6 2.1.9 14.6.9 6.1.2 17.6.1 15.6.9 15.5.7 14.3.10 5.1.9 3.4.1 10.2.2 18.6.9 19.6.6 19.3.10 2.4.3 5.2.7 9.5.7 11.1.5 2.4.1 6.3.2 7.4.7 ... | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | arnold_andre | arnold_andre | null | {} | hard | en | 149 | 149 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
rail-fence-195 | ONPOBEIESRTGNAI | ONPOBEIESRTGNAI | OPERATION BEGINS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 5
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
affine-v3-1446 | BYNUNGNA HUR IPAZ PI DPGNAUZNUQ CNXPZNV SNVQALXQTGN PI QYNVN NUSV TQ TV QYN ATDYQ PI QYN KNPKEN QP HEQNA PA QP HCPETVY TQ HUS QP TUVQTQLQN UNB DPGNAUZNUQ EHRTUD TQV IPLUSHQTPU PU VLXY KATUXTKENV | BYNUNGNA HUR IPAZ PI DPGNAUZNUQ CNXPZNV SNVQALXQTGN PI QYNVN NUSV TQ TV QYN ATDYQ PI QYN KNPKEN QP HEQNA PA QP HCPETVY TQ HUS QP TUVQTQLQN UNB DPGNAUZNUQ EHRTUD TQV IPLUSHQTPU PU VLXY KATUXTKENV | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | affine | affine | substitution | {
"a": 21,
"b": 7
} | beginner | en | 161 | 194 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0210 | IEKACHNODBOSRIUIUFFJMAAAAGBEIRVYLDPVOPDJUSPKMDXMRZRVFCBVWXZNYPVOYQDFUULTNONPFYVCYSF | IEKACHNODBOSRIUIUFFJMAAAAGBEIRVYLDPVOPDJUSPKMDXMRZRVFCBVWXZNYPVOYQDFUULTNONPFYVCYSF | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0902 | FRWITLIKMOOPLSZNISDOWESDCIMPLATDXWQLWPPGRWISDOWEISQLWZREWZPCLASDZFPOABZLKZIWTNKFBOBS | FRWITLIKMOOPLSZNISDOWESDCIMPLATDXWQLWPPGRWISDOWEISQLWZREWZPCLASDZFPOABZLKZIWTNKFBOBS | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
typex-v3-0149 | EJKWAWHTJAJWCJOZKKDJ | EJKWAWHTJAJWCJOZKKDJ | STEAM POWER TRANSFORMS | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0483 | AZBMHJYBMXRONRHCIHKPGNXLFOUGZKPBVMDGMMXPJVLIICVRRFITXQZYBIKFETDQLYFKCIGQBGVEZHMOTGUG | AZBMHJYBMXRONRHCIHKPGNXLFOUGZKPBVMDGMMXPJVLIICVRRFITXQZYBIKFETDQLYFKCIGQBGVEZHMOTGUG | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0221 | 425229134282283372005726212221 | 425229134282283372005726212221 | THE CASTLE IS SURROUNDED | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "RASTONICEL"
} | advanced | en | 30 | 30 | cipher_museum | 2.0 | public | null | null |
porta-v2-0467 | JWXSOQSLZCALFNICFMXDMREDSLTCSBKTXJSNSKTSSERHTBGLZMCVDTNQFWDPDROBIPVDOJUWXOOJFXWT | JWXSOQSLZCALFNICFMXDMREDSLTCSBKTXJSNSKTSSERHTBGLZMCVDTNQFWDPDROBIPVDOJUWXOOJFXWT | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0659 | PATYIREONTCCEIBVRSIGN | PATYIREONTCCEIBVRSIGN | PATIENCE BRINGS VICTORY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0436 | ZMINSJFDUTQQFDJFOVKNKZJXRLMBIEJIEAXXYYVDXTJIUHDNKZCWGESOLTRCFWTFFHZE | ZMINSJFDUTQQFDJFOVKNKZJXRLMBIEJIEAXXYYVDXTJIUHDNKZCWGESOLTRCFWTFFHZE | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0186 | JQQYZRHYZBLDUUHKCYUUOFSOSWHYCKZPPSMUDLVLYRNNCYGZITAOLSCYCXJEYRRXBQZZB | JQQYZRHYZBLDUUHKCYUUOFSOSWHYCKZPPSMUDLVLYRNNCYGZITAOLSCYCXJEYRRXBQZZB | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0358 | ADNCHNMPMDECBPCADACIETTNPROHRIEDSLULISSHUILEGNENREOELOSLPMRBRTAEYUAIKNENSEOVOGRER | ADNCHNMPMDECBPCADACIETTNPROHRIEDSLULISSHUILEGNENREOELOSLPMRBRTAEYUAIKNENSEOVOGRER | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0274 | RPYPCLWDSPCXLYXLCNSPOEZESPDPLESCZFRSRPZCRTLNFEETYRLDTIEJXTWPHTOPALESZQCFTY | RPYPCLWDSPCXLYXLCNSPOEZESPDPLESCZFRSRPZCRTLNFEETYRLDTIEJXTWPHTOPALESZQCFTY | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0021792 | 857 823 812 999 835 824 805 853 800 852 873 999 845 851 812 855 814 853 865 814 855 999 830 839 844 867 835 812 809 818 813 999 815 842 851 999 858 823 814 999 807 842 837 838 860 840 826 858 874 999 803 852 860 857 812 999 817 843 853 808 812 999 867 843 852 832 856 999 842 840 833 874 999 867 823 812 841 999 857 822 ... | 857 823 812 999 835 824 805 853 800 852 873 999 845 851 812 855 814 853 865 814 855 999 830 839 844 867 835 812 809 818 813 999 815 842 851 999 858 823 814 999 807 842 837 838 860 840 826 858 874 999 803 852 860 857 812 999 817 843 853 808 812 999 867 843 852 832 856 999 842 840 833 874 999 867 823 812 841 999 857 822 ... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | culper_ring | culper_ring | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
babington-v2-0030 | ⟨w23⟩ ⟨w21⟩ ⟨w16⟩ ⟨w07⟩ ⟨w06⟩ ⟨w01⟩ ⟨w04⟩ ⟨w07⟩ ⟨w02⟩ ⟨w13⟩ ⟨w32⟩ ⟨w15⟩ | ⟨w23⟩ ⟨w21⟩ ⟨w16⟩ ⟨w07⟩ ⟨w06⟩ ⟨w01⟩ ⟨w04⟩ ⟨w07⟩ ⟨w02⟩ ⟨w13⟩ ⟨w32⟩ ⟨w15⟩ | STORM THE BREACH | babington | babington | nomenclator | {
"type": "seed",
"value": "WALSINGHAM"
} | expert | en | 60 | 71 | cipher_museum | 2.0 | public | null | null |
sigaba-196 | DYENLMNGDTYSNGSJUR | DYENLMNGDTYSNGSJUR | SEND REINFORCEMENTS | sigaba | sigaba | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
playfair-v2-1128 | GKMTBHUTQDAFCYNGUGGNQKDEGSNGAGKYTGUDHBUTDCRGXRLQMZGQLNADARBGUCADHILRKNFUKOHNFDXY | GKMTBHUTQDAFCYNGUGGNQKDEGSNGAGKYTGUDHBUTDCRGXRLQMZGQLNADARBGUCADHILRKNFUKOHNFDXY | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0335 | ALWZZBSAHRKBUVOWBWANOCQMIFJQYYUISRABOXSFUPFYFGDGTIRTLUXCKXYUNRYRARGQNZFCFBQCJUD | ALWZZBSAHRKBUVOWBWANOCQMIFJQYYUISRABOXSFUPFYFGDGTIRTLUXCKXYUNRYRARGQNZFCFBQCJUD | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | kl7 | kl7 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0396 | HQBFVFFIEBPXG | HQBFVFFIEBPXG | AWAIT MY SIGNAL | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
cda-0014090 | 858 821 814 999 800 862 857 844 832 814 873 999 807 825 846 821 813 853 999 812 869 859 813 839 809 854 999 857 823 814 999 830 812 873 999 867 824 857 821 999 859 821 812 999 847 834 802 824 840 859 812 870 858 999 824 859 854 813 833 816 999 | 858 821 814 999 800 862 857 844 832 814 873 999 807 825 846 821 813 853 999 812 869 859 813 839 809 854 999 857 823 814 999 830 812 873 999 867 824 857 821 999 859 821 812 999 847 834 802 824 840 859 812 870 858 999 824 859 854 813 833 816 999 | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | culper_ring | culper_ring | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
four-square-v2-0359 | ALRLWQGSUHGMSIIQSB | ALRLWQGSUHGMSIIQSB | ENEMY RETREATS NORTH | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
nihilist-032 | 55 50 105 59 36 68 55 70 79 45 36 66 77 70 108 76 37 65 59 46 79 75 79 106 67 50 75 67 50 68 47 66 69 68 39 75 66 40 95 48 38 99 49 59 79 | 55 50 105 59 36 68 55 70 79 45 36 66 77 70 108 76 37 65 59 46 79 75 79 106 67 50 75 67 50 68 47 66 69 68 39 75 66 40 95 48 38 99 49 59 79 | NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE | nihilist | nihilist | fractionation | {
"polybius": "RUSSIAN",
"keyword": "KEY"
} | advanced | en | 93 | 137 | cipher_museum | 0.2 | public | null | null |
adfgvx-209 | FFGFAGDFXGAFFDDDDAVDXADFAAAFDAFG | FFGFAGDFXGAFFDDDDAVDXADFAAAFDAFG | LOCK DOWN ALL GATES | adfgvx | adfgvx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 32 | 32 | cipher_museum | 0.2 | public | null | null |
caesar-vh-0032 | MAX LXKOTGM BL GHM ZKXTMXK MATG ABL EHKW | MAX LXKOTGM BL GHM ZKXTMXK MATG ABL EHKW | THE SERVANT IS NOT GREATER THAN HIS LORD | caesar | caesar | substitution | {
"type": "shift",
"value": 19
} | beginner | en | 33 | 40 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0247 | SUNJJNWPCAYIOIJQQZHBFGIYETUYOZFRPDZBSRWGTWNETQEXUBBBKYCZPVBUZLDGWEZPWWFYOECFCADBWMKEVNXVMYVTXBPSPFTOCTLVBSFWQGRVCTRNDUNRBGJHVWLQESHRQWXLBHLXQHJLZZIJDV | SUNJJNWPCAYIOIJQQZHBFGIYETUYOZFRPDZBSRWGTWNETQEXUBBBKYCZPVBUZLDGWEZPWWFYOECFCADBWMKEVNXVMYVTXBPSPFTOCTLVBSFWQGRVCTRNDUNRBGJHVWLQESHRQWXLBHLXQHJLZZIJDV | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0066 | 171 140 144 118 172 123 138 156 143 166 156 138 113 102 122 179 108 152 146 169 108 182 151 171 106 173 171 178 170 171 119 154 125 151 167 167 129 171 130 119 114 166 167 175 152 165 119 103 133 161 119 166 116 163 142 173 166 162 138 151 129 | 171 140 144 118 172 123 138 156 143 166 156 138 113 102 122 179 108 152 146 169 108 182 151 171 106 173 171 178 170 171 119 154 125 151 167 167 129 171 130 119 114 166 167 175 152 165 119 103 133 161 119 166 116 163 142 173 166 162 138 151 129 | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 183 | 243 | cipher_museum | 2.0 | public | null | null |
cda-0012622 | ILTU DIAB YGWB BXBR GPJO QFXV BSKA JLKL HJZD JUMS ESZD BWUF BBUL KIPY XORH QBGR PKDF BWJK PHML VRVW MOQC RZBT JTVR GTUG WEZD EOLF HEBF XZIX XTRJ GEXS SAGK KZDG JLGO DPZI CDUV PSIM CRAL NCKE WDVN V | ILTU DIAB YGWB BXBR GPJO QFXV BSKA JLKL HJZD JUMS ESZD BWUF BBUL KIPY XORH QBGR PKDF BWJK PHML VRVW MOQC RZBT JTVR GTUG WEZD EOLF HEBF XZIX XTRJ GEXS SAGK KZDG JLGO DPZI CDUV PSIM CRAL NCKE WDVN V | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE INDEX OF COINCIDENCE IS A USEFUL CLUE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | vernam | vernam | null | {} | hard | en | 157 | 157 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
lorenz-v2-0032 | EPLURIBUSUNUM | EPLURIBUSUNUM | E PLURIBUS UNUM | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0139 | RFBLDSRVCDHLANIGV | RFBLDSRVCDHLANIGV | THE RAILWAY ARRIVES | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0160 | 437372538223523210387229 | 437372538223523210387229 | NOVUS ORDO SECLORUM | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0031 | USCRNDUWBVVV | USCRNDUWBVVV | VENI VIDI VICI | kl7 | kl7 | machine | {
"type": "seed",
"value": "NATO"
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0021678 | ANAFF INECZ PHERA PPLIE SALIN EARFX NCTIZ NTOEZ CHLEZ TERTZ EBEST LESSZ NSSHX WWHEX ETHEM ETHOZ FAILS AMODZ LCANC LASSI FYPAT TERNS BUTIT CANAZ SOBEW RONGX HEFRX EDMAN TESTZ SESTZ EINDX XOFCO INCID ENCET OESTX MATEZ EYLEN GTHCZ | ANAFF INECZ PHERA PPLIE SALIN EARFX NCTIZ NTOEZ CHLEZ TERTZ EBEST LESSZ NSSHX WWHEX ETHEM ETHOZ FAILS AMODZ LCANC LASSI FYPAT TERNS BUTIT CANAZ SOBEW RONGX HEFRX EDMAN TESTZ SESTZ EINDX XOFCO INCID ENCET OESTX MATEZ EYLEN GTHCZ | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE BEST LESSONS SHOW WHERE THE METHOD FAILS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | commercial_code | commercial_code | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0017218 | 66 36 82 95 50 25 82 29 82 80 82 52 50 65 36 82 80 59 61 82 61 68 80 82 65 82 68 66 50 29 25 55 82 43 89 69 80 11 | 66 36 82 95 50 25 82 29 82 80 82 52 50 65 36 82 80 59 61 82 61 68 80 82 65 82 68 66 50 29 25 55 82 43 89 69 80 11 | THE VIGENERE CIPHER USES A REPEATING KEYWORD | wallis_cipher | wallis_cipher | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
polybius-la-010 | 13 34 22 24 44 34 15 42 22 34 43 45 32 | 13 34 22 24 44 34 15 42 22 34 43 45 32 | COGITO ERGO SUM | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | la | 26 | 38 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-v2-1451 | B ITG UJ TEE QABGHO QANJSHA IANBOQ WABIA OQNMGHQAMGMQA FM BG MVMNY QNBTE TGU QNBRSETQBJG | B ITG UJ TEE QABGHO QANJSHA IANBOQ WABIA OQNMGHQAMGMQA FM BG MVMNY QNBTE TGU QNBRSETQBJG | I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 74 | 88 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0301 | OUEJZFBMGHCVHTZUEIZOEYVRAUCDBVAWCXSCMUFLGZZTRJQJANHILJNFTGGWTZKFBOZUCL | OUEJZFBMGHCVHTZUEIZOEYVRAUCDBVAWCXSCMUFLGZZTRJQJANHILJNFTGGWTZKFBOZUCL | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
typex-100 | DDVIOJWIRVWUKPZCWNPMURDCZEENICINTDKOMVLWQOSKUTBC | DDVIOJWIRVWUKPZCWNPMURDCZEENICINTDKOMVLWQOSKUTBC | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | typex | typex | machine | {
"type": "keyword",
"value": "BLETCHLEY"
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
beaufort-v3-0827 | KAKYAZOKNIESOXYLTIAZZVKSCWVSQGZLXHKXKEXNEZGAVWTHKHGZJAFPJHMWEKAZAAOWMKPWQHHLZVKMMOKAKGYCMNEPKUBEFKWBYYAFQYVFHISDNXYPYLZOEZBEHOZIIIAAMIGJLXWOKVIYNDLUDYXMDLEJYYHWEQGBEWFFUO | KAKYAZOKNIESOXYLTIAZZVKSCWVSQGZLXHKXKEXNEZGAVWTHKHGZJAFPJHMWEKAZAAOWMKPWQHHLZVKMMOKAKGYCMNEPKUBEFKWBYYAFQYVFHISDNXYPYLZOEZBEHOZIIIAAMIGJLXWOKVIYNDLUDYXMDLEJYYHWEQGBEWFFUO | 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 | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "COMPASS"
} | intermediate | en | 170 | 170 | cipher_museum | 2.0 | public | null | null |
affine-v3-0943 | LJOFI KH GTFKHON | LJOFI KH GTFKHON | MARCH TO VICTORY | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
fialka-189 | POHOXLZFWBLVTQQJXZUPV | POHOXLZFWBLVTQQJXZUPV | SUPPLY LINE COMPROMISED | fialka | fialka | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0019459 | .... .. .-.. .-.. / -.-. .. .--. .... . .-. / ..- ... . ... / .-.. .. -. . .- .-. / .- .-.. --. . -... .-. .- / - --- / . -. -.-. .-. -.-- .--. - / -... .-.. --- -.-. -.- ... / --- ..-. / .-.. . - - . .-. ... / .- / ... -.-. -.-- - .- .-.. . / .. ... / .- / .-. --- -.. / ..- ... . -.. / -... -.-- / ... .--. .- .-. - .-... | .... .. .-.. .-.. / -.-. .. .--. .... . .-. / ..- ... . ... / .-.. .. -. . .- .-. / .- .-.. --. . -... .-. .- / - --- / . -. -.-. .-. -.-- .--. - / -... .-.. --- -.-. -.- ... / --- ..-. / .-.. . - - . .-. ... / .- / ... -.-. -.-- - .- .-.. . / .. ... / .- / .-. --- -.. / ..- ... . -.. / -... -.-- / ... .--. .- .-. - .-... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | morse_code | morse_code | null | {} | hard | en | 151 | 151 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
bifid-v2-0068 | BCQBQRPTLKPTFTBYBPQAKLDPTACCBPPLLCQMKTLXODHUVWVUWGOGZSWMOYWGBOMWDYZEGXDWKOTX | BCQBQRPTLKPTFTBYBPQAKLDPTACCBPPLLCQMKTLXODHUVWVUWGOGZSWMOYWGBOMWDYZEGXDWKOTX | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
bifid-vg-0066 | VWPATLFFDIXWMRDXYYCGMITBOWRDLFFEMWYCIWOKGZESAUENVCAAFHCNERRVELFGCUDS | VWPATLFFDIXWMRDXYYCGMITBOWRDLFFEMWYCIWOKGZESAUENVCAAFHCNERRVELFGCUDS | THE SPIRIT OF THE LORD IS UPON ME BECAUSE HE HATH ANOINTED ME TO PREACH THE GOOD NEWS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0383 | YBTOZQQIAPNKROC | YBTOZQQIAPNKROC | CAVALRY ADVANCES | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0153 | JOSOFZROLTZHH | JOSOFZROLTZHH | HONOR ABOVE ALL | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0912 | VIAWBH CF VIAOB WBHSZZWUSBQS UOHVSFWBU FSZWSG CB DSFGCBOZ QCBHOQH OBR VIAOB GCIFQSG WB HVS TWSZR | VIAWBH CF VIAOB WBHSZZWUSBQS UOHVSFWBU FSZWSG CB DSFGCBOZ QCBHOQH OBR VIAOB GCIFQSG WB HVS TWSZR | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | caesar | caesar | substitution | {
"type": "shift",
"value": 14
} | beginner | en | 82 | 96 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0884 | KQCFBHQHACAJJWALBANNLHQBQHFYGLBIRNYJMIFACBMKYGUABWEUPUUCCQXPGIBNGYTOJNNYL | KQCFBHQHACAJJWALBANNLHQBQHFYGLBIRNYJMIFACBMKYGUABWEUPUUCCQXPGIBNGYTOJNNYL | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
gronsfeld-294 | CQNNWNVHTWXFBCQNBHBCNVMNBRPWHXDALRYQNAJLLXAMRWPUHFRCQPANJCLJAN | CQNNWNVHTWXFBCQNBHBCNVMNBRPWHXDALRYQNAJLLXAMRWPUHFRCQPANJCLJAN | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "99999"
} | intermediate | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
running-key-v3-0037 | YVYKWNSWCBSWVZZRYPS | YVYKWNSWCBSWVZZRYPS | THE TELESCOPE REVEALS | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Gettysburg Address opening"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0037 | ╳ ┬ ┼ ╳ ┼ ¬• ┼ ╲ ¬ ┤• ┌• ┼ ┐• ┼ ╲• ┼ ⌐ ¬• ╲ | ╳ ┬ ┼ ╳ ┼ ¬• ┼ ╲ ¬ ┤• ┌• ┼ ┐• ┼ ╲• ┼ ⌐ ¬• ╲ | THE TELESCOPE REVEALS | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 25 | 43 | cipher_museum | 2.0 | public | null | null |
hill-v2-0025 | MJUUKVZDFANCFS | MJUUKVZDFANCFS | TRUST BUT VERIFY | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0005276 | TRRKRTEXLEECERFATPLEABIOYENCPXBKIYOCELIMCQAOXTSEUIETUROSDXULBNHRXIBRNEDTNSXDMCFYTRHETLOAYNOENORYNIEEETENX | TRRKRTEXLEECERFATPLEABIOYENCPXBKIYOCELIMCQAOXTSEUIETUROSDXULBNHRXIBRNEDTNSXDMCFYTRHETLOAYNOENORYNIEEETENX | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "PATTERN"
} | hard | en | 105 | 105 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
chaocipher-047 | BSHLTJAFARAISKKZSZODKJQVSEXMQJPRYXAQPAXJLSAHYJIXL | BSHLTJAFARAISKKZSZODKJQVSEXMQJPRYXAQPAXJLSAHYJIXL | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CHAOCIPHER"
} | advanced | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
cda-0006568 | NZBQ RYPN APYN FFVS LCNG GREA FOHG VGPN ANYF BORJ EBAT GURG EVGU RZVH FPVC UREN QINA PRFG URNY CUNO RGOL BARC BFVG VBAR NPUY RGGR ETBB QRQH PNGV BANY GBBY FRKC YNVA GURV EYVZ VGF | NZBQ RYPN APYN FFVS LCNG GREA FOHG VGPN ANYF BORJ EBAT GURG EVGU RZVH FPVC UREN QINA PRFG URNY CUNO RGOL BARC BFVG VBAR NPUY RGGR ETBB QRQH PNGV BANY GBBY FRKC YNVA GURV EYVZ VGF | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 143 | 143 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
four-square-v3-0403 | ENFHNUMLSGWASY | ENFHNUMLSGWASY | FULL SAIL AHEAD | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0017038 | FAVMEEJPKPDUDUPXNAPBVEFFNVLGIHNMOKKJJWNDDHOICNKSVJNPNNOLWPXAVLTUGNXVCJZXIBXYMIRVOUHSGKMBPVHAHCQRZVLAMOHNPTKYMMS | FAVMEEJPKPDUDUPXNAPBVEFFNVLGIHNMOKKJJWNDDHOICNKSVJNPNNOLWPXAVLTUGNXVCJZXIBXYMIRVOUHSGKMBPVHAHCQRZVLAMOHNPTKYMMS | FAIL CLOSED IS A POSTURE NOT A SLOGAN EVERY SYSTEM NEEDS AN HONEST THREAT MODEL POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | one_time_pad | one_time_pad | null | {} | hard | en | 111 | 111 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
wheatstone-v2-0074 | NRLJIIJYQRNQHRRIRFXKJOYQYJITIGNRKJNQETLCERAJNRIYPHQATDDVYQHTASDDOQNRIPQHLJSIQ | NRLJIIJYQRNQHRRIRFXKJOYQYJITIGNRKJNQETLCERAJNRIYPHQATDDVYQHTASDDOQNRIPQHLJSIQ | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0004700 | O ZBRRY QOA QYOFFNSL COGGSEAF PHG NG QOA OYFB PS JEBAT RWSTVS NAR USYYZOA VAGEBRHNSR CHPYVQ XSL QELCGBTEOCVL NA AWASGSRA FRISAGL FVK | O ZBRRY QOA QYOFFNSL COGGSEAF PHG NG QOA OYFB PS JEBAT RWSTVS NAR USYYZOA VAGEBRHNSR CHPYVQ XSL QELCGBTEOCVL NA AWASGSRA FRISAGL FVK | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 111 | 111 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
cda-0010726 | RAGEBCL ZRNFHERF HAPREGNVAGL VA N QVFGEVOHGVBA BCRA FBHEPR GBBYF NYYBJ VAQRCRAQRAG IREVSVPNGVBA SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA | RAGEBCL ZRNFHERF HAPREGNVAGL VA N QVFGEVOHGVBA BCRA FBHEPR GBBYF NYYBJ VAQRCRAQRAG IREVSVPNGVBA SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION FAIL CLOSED IS A POSTURE NOT A SLOGAN | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 114 | 114 | synthetic_educational | null | null | [] | |
cda-0022023 | GSV KOZBUZRI XRKSVI VMXIBKGH KZRIH LU OVGGVIH HRNFOGZMVLFHOB | GSV KOZBUZRI XRKSVI VMXIBKGH KZRIH LU OVGGVIH HRNFOGZMVLFHOB | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | atbash | atbash | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
playfair-142 | SFKYQRGSFBVO | SFKYQRGSFBVO | RALLY AT DAWN | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0396 | FDAGFXDDGAFGFFAGADAFADXGDXAXDGGGFFGAAFGDADGADGXXAGGADGGAAFDDDGGGADGAGXFXDDFGDAGXAFFAXGFXGGADGGGFXAXDADGFFDGFGGXAFGFFDFGA | FDAGFXDDGAFGFFAGADAFADXGDXAXDGGGFFGAAFGDADGADGXXAGGADGGAAFDDDGGGADGAGXFXDDFGDAGXAFFAXGFXGGADGGGFXAXDADGFFDGFGGXAFGFFDFGA | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 120 | 120 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0123 | QZHQZMGIEUSPMPBJCTASCNDXCQFEIBAQNISYIMFMJXMNYECEZPKUCBLAMZMEDZMPCELWFEBPPPXRFRDUJDFROZBINYRITZCEGOXLRTUOHMVBMNBNJPDYMIGGLWEZRBUQEXJXUXQUDNLIXIDWUAQHNBGIQIXJLKFEJPD | QZHQZMGIEUSPMPBJCTASCNDXCQFEIBAQNISYIMFMJXMNYECEZPKUCBLAMZMEDZMPCELWFEBPPPXRFRDUJDFROZBINYRITZCEGOXLRTUOHMVBMNBNJPDYMIGGLWEZRBUQEXJXUXQUDNLIXIDWUAQHNBGIQIXJLKFEJPD | 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 | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
one-time-pad-v3-0049 | TXQUSFJZLRFPDTSSYESRYGHLUVOPFDRIYVZAITOBIATEGMNMWSCKBPVKESJIMXXPFEOKUCWK | TXQUSFJZLRFPDTSSYESRYGHLUVOPFDRIYVZAITOBIATEGMNMWSCKBPVKESJIMXXPFEOKUCWK | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ABCDEFGH (repeating)"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
kryha-v2-0059 | YHYRNGHGPWUZPWESWKUFEZTBZGYVQUNPEQEZNSTTKFPZUWMAXNTWJJPHEFTYDGNFRDAJEZMO | YHYRNGHGPWUZPWESWKUFEZTBZGYVQUNPEQEZNSTTKFPZUWMAXNTWJJPHEFTYDGNFRDAJEZMO | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0282 | WPIZYHFUEKPIXTQCICYMEYSSZRPHQAHDITSSZROVSBLVXONDAOOVSDQMCYXPTKXPDIOCIEV | WPIZYHFUEKPIXTQCICYMEYSSZRPHQAHDITSSZROVSBLVXONDAOOVSDQMCYXPTKXPDIOCIEV | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0501 | NKGJWAGXZKXY LOXYZ GXSE IUXVY UXJKXY LUX UIZUHKX LUAXZN TOTKZKKT KOMNZKKT ZNK IUXVY CORR GZZGIQ GZ FKXU NUAX COZN GRR GBGORGHRK LUXIKY ZNK UHPKIZOBK OY ZNK XOJMK UBKXRUUQOTM ZNK GXMUTTK LUXKYZ | NKGJWAGXZKXY LOXYZ GXSE IUXVY UXJKXY LUX UIZUHKX LUAXZN TOTKZKKT KOMNZKKT ZNK IUXVY CORR GZZGIQ GZ FKXU NUAX COZN GRR GBGORGHRK LUXIKY ZNK UHPKIZOBK OY ZNK XOJMK UBKXRUUQOTM ZNK GXMUTTK LUXKYZ | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 6
} | beginner | en | 163 | 192 | cipher_museum | 2.0 | public | null | null |
diana-v3-0463 | XYWMDVVLYXKQGRBAMESDOFPURPSBBOYAAVFFYEMVBGUNSEQGZQDMMZWUXDRQYOHRALKQKALZLDZGZJRRLPJMJJZA | XYWMDVVLYXKQGRBAMESDOFPURPSBBOYAAVFFYEMVBGUNSEQGZQDMMZWUXDRQYOHRALKQKALZLDZGZJRRLPJMJJZA | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
cda-0008985 | OECRNOPRETTOERFDIBEOECSHARSIFNERIOSVMCEIENSUOCCSESNEIEOTTRGWBNOELQTXRDSNRISEISIIMEURXVEBFAORLTTNNETEIXANEINNEEHIDCATNBXBCFDSCATOTEISECUXLEOEPIRTUUXDURYTX | OECRNOPRETTOERFDIBEOECSHARSIFNERIOSVMCEIENSUOCCSESNEIEOTTRGWBNOELQTXRDSNRISEISIIMEURXVEBFAORLTTNNETEIXANEINNEEHIDCATNBXBCFDSCATOTEISECUXLEOEPIRTUUXDURYTX | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | scytale | scytale | null | {
"cols": 9
} | hard | en | 153 | 153 | synthetic_educational | null | null | [] | |
cda-0016876 | 11 69 29 69 66 52 69 29 76 59 61 82 69 20 76 59 61 52 68 66 50 69 29 89 50 66 36 82 29 52 80 43 65 66 50 69 29 66 36 82 76 69 59 80 61 72 59 68 80 82 52 50 65 36 82 80 59 61 82 61 66 89 69 55 82 43 89 69 80 11 65 69 57 43 20 50 59 61 61 72 59 68 80 82 61 | 11 69 29 69 66 52 69 29 76 59 61 82 69 20 76 59 61 52 68 66 50 69 29 89 50 66 36 82 29 52 80 43 65 66 50 69 29 66 36 82 76 69 59 80 61 72 59 68 80 82 52 50 65 36 82 80 59 61 82 61 66 89 69 55 82 43 89 69 80 11 65 69 57 43 20 50 59 61 61 72 59 68 80 82 61 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | wallis_cipher | wallis_cipher | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
copiale-v3-0141 | I3 M4 D5 U2 N9 S0 K2 L7 G0 O1 S8 Q4 D4 P5 R3 J0 B6 C7 L7 | I3 M4 D5 U2 N9 S0 K2 L7 G0 O1 S8 Q4 D4 P5 R3 J0 B6 C7 L7 | THE TELESCOPE REVEALS | copiale | copiale | substitution | {
"type": "keyword",
"value": "TEMPLE"
} | advanced | en | 38 | 56 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0181 | CGSZUBMTFBMHOTJUZGCZMYKHTDYXHJHWTDTIPFPZYUMUHDLQRVJODAKIBYXJGEPHAGTTIBLKMZPPWDAZATAOCKBQ | CGSZUBMTFBMHOTJUZGCZMYKHTDYXHJHWTDTIPFPZYUMUHDLQRVJODAKIBYXJGEPHAGTTIBLKMZPPWDAZATAOCKBQ | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0151 | 8603 8437 8685 8528 8603 7256 8685 8603 8781 7467 8437 7720 7529 9003 | 8603 8437 8685 8528 8603 7256 8685 8603 8781 7467 8437 7720 7529 9003 | TRUST BUT VERIFY | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 56 | 69 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0306 | WQGLVCUFMNVUVGWIIQVZZMZUFMQWNNWFWYYVIKUVYJDFUWXZVPHUMZJPMYIMJZJGNMQWUJBMYVS | WQGLVCUFMNVUVGWIIQVZZMZUFMQWNNWFWYYVIKUVYJDFUWXZVPHUMZJPMYIMJZJGNMQWUJBMYVS | ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0385 | XXGDAADAGGFXXAFGDFAXDXXGXGFAGGAA | XXGDAADAGGFXXAFGDFAXDXXGXGFAGGAA | SOUND THE TRUMPETS | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 32 | 32 | cipher_museum | 2.0 | public | null | null |
cda-0016205 | 17 49 39 30 87 49 63 88 22 3 14 43 48 50 30 49 70 33 82 58 1 39 57 23 67 34 2 60 45 23 70 21 3 41 63 60 67 30 45 35 80 50 72 61 30 33 60 25 48 34 50 3 76 32 68 23 87 49 63 94 22 58 11 34 48 1 62 82 24 3 49 64 93 70 1 63 3 23 11 35 58 59 67 48 52 24 48 76 4 22 68 34 49 21 63 27 68 91 23 34 99 46 82 49 39 87 39 26 50 23 ... | 17 49 39 30 87 49 63 88 22 3 14 43 48 50 30 49 70 33 82 58 1 39 57 23 67 34 2 60 45 23 70 21 3 41 63 60 67 30 45 35 80 50 72 61 30 33 60 25 48 34 50 3 76 32 68 23 87 49 63 94 22 58 11 34 48 1 62 82 24 3 49 64 93 70 1 63 3 23 11 35 58 59 67 48 52 24 48 76 4 22 68 34 49 21 63 27 68 91 23 34 99 46 82 49 39 87 39 26 50 23 ... | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN FAIL CLOSED IS A POSTURE NOT A SLOGAN | homophonic | homophonic | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
four-square-110 | DRBROUSFITDHUPTQKEPGITHAHABEHOHATLSFIGUUHOOEUDUUGUBLBLAUCGKRETTQRSOFTIMPFSUSDKMKUUHECAIYHTEBHGLSUUPOHAEEYHTFLLTLSFHOCSSTCGKRXCBEDQFSWFCVHTFSGMTQFOGHNUPOQTPZ | DRBROUSFITDHUPTQKEPGITHAHABEHOHATLSFIGUUHOOEUDUUGUBLBLAUCGKRETTQRSOFTIMPFSUSDKMKUUHECAIYHTEBHGLSUUPOHAEEYHTFLLTLSFHOCSSTCGKRXCBEDQFSWFCVHTFSGMTQFOGHNUPOQTPZ | IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE | four_square | four_square | polygraphic | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 156 | 156 | cipher_museum | 0.2 | public | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.