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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
two-square-v3-0034 | NEBKUKNSKCCUHOAFSX | NEBKUKNSKCCUHOAFSX | OLD IRONSIDES HOLDS | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
homophonic-026 | 46 72 58 22 80 72 91 55 98 51 72 65 | 46 72 58 22 80 72 91 55 98 51 72 65 | HOLD POSITION | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "KEYSTONE"
} | intermediate | en | 24 | 35 | cipher_museum | 0.2 | public | null | null |
cda-0014634 | 807 835 802 856 855 825 806 800 835 999 807 825 846 821 813 851 856 999 858 814 801 807 822 999 867 821 874 999 836 844 809 814 852 841 999 856 812 807 862 851 826 857 874 999 837 800 857 857 814 851 855 999 859 866 843 999 854 850 860 801 851 812 999 806 825 845 822 814 851 999 812 839 807 853 874 847 858 854 999 810 ... | 807 835 802 856 855 825 806 800 835 999 807 825 846 821 813 851 856 999 858 814 801 807 822 999 867 821 874 999 836 844 809 814 852 841 999 856 812 807 862 851 826 857 874 999 837 800 857 857 814 851 855 999 859 866 843 999 854 850 860 801 851 812 999 806 825 845 822 814 851 999 812 839 807 853 874 847 858 854 999 810 ... | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | culper_ring | culper_ring | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
typex-v3-0304 | CZMMIQBABRHCERGJXSSZSEQKWXMNBVRUEICOJSOYFNQERIOTKMVFWFCAGJSYJYVVLRFJLUWTQTKACPALUSGSQBOFMOIIWHRPHLNFWBPPETAZAKNUDCISGNJYXFRYPNARCCDPXTGJMPLFFLQDUPJSHSLLUUIYPCIYGAEPF | CZMMIQBABRHCERGJXSSZSEQKWXMNBVRUEICOJSOYFNQERIOTKMVFWFCAGJSYJYVVLRFJLUWTQTKACPALUSGSQBOFMOIIWHRPHLNFWBPPETAZAKNUDCISGNJYXFRYPNARCCDPXTGJMPLFFLQDUPJSHSLLUUIYPCIYGAEPF | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
cda-0021457 | 837 842 809 814 853 840 999 814 841 806 852 872 845 857 826 844 839 999 824 856 999 839 843 858 999 805 853 842 830 813 839 999 805 874 999 835 814 858 858 814 853 999 815 853 812 850 861 813 841 806 873 999 857 822 814 999 852 800 824 833 999 815 813 839 806 814 999 806 824 847 823 813 853 999 868 851 824 858 812 854 ... | 837 842 809 814 853 840 999 814 841 806 852 872 845 857 826 844 839 999 824 856 999 839 843 858 999 805 853 842 830 813 839 999 805 874 999 835 814 858 858 814 853 999 815 853 812 850 861 813 841 806 873 999 857 822 814 999 852 800 824 833 999 815 813 839 806 814 999 806 824 847 823 813 853 999 868 851 824 858 812 854 ... | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | culper_ring | culper_ring | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
vigenere-v2-0404 | GEVGGCLNPFNLSIZRP | GEVGGCLNPFNLSIZRP | KEEP YOUR POWDER DRY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
typex-v2-0487 | YNBZICXSNZZSSFLNEAKNDMYBPMNUKSMFEVFUMRSAYSFINKGVNDSZZBBPLIUUCFGGFVXLWMFEUNFLJIROYSNGKYKUMOETCKSAXJQKPKYXSFLHEGVJBVJQOLWTOIWNHWSRQDWCFXNKOZZZIJJJSUOBYFPTSRQXCZCQKYLW | YNBZICXSNZZSSFLNEAKNDMYBPMNUKSMFEVFUMRSAYSFINKGVNDSZZBBPLIUUCFGGFVXLWMFEUNFLJIROYSNGKYKUMOETCKSAXJQKPKYXSFLHEGVJBVJQOLWTOIWNHWSRQDWCFXNKOZZZIJJJSUOBYFPTSRQXCZCQKYLW | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
chinese-telegraph-v2-0134 | 7467 8038 7467 7974 9003 8437 7467 8603 8437 7467 7194 8603 8528 8038 8100 8437 8603 7654 | 7467 8038 7467 7974 9003 8437 7467 8603 8437 7467 7194 8603 8528 8038 8100 8437 8603 7654 | ENEMY RETREATS NORTH | chinese_telegraph | chinese_telegraph | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 72 | 89 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-080 | 0676372292462034766927571 | 0676372292462034766927571 | CRYPTOGRAPHY RULES | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "CIPHERMUS"
} | advanced | en | 25 | 25 | cipher_museum | 0.2 | public | null | null |
m209-v3-0363 | JHPJNEBNAWJZMXBCWQFEAQQQHGPOADQBMNNOIVAPLUAPPKIMDJZRDOKXCSBCZPRAKLEHCSBL | JHPJNEBNAWJZMXBCWQFEAQQQHGPOADQBMNNOIVAPLUAPPKIMDJZRDOKXCSBCZPRAKLEHCSBL | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0021416 | raiin otaiin rcheol shaiin daiin dal otaiin dal otol okal chedy daiin chedy shedy okain chor daiin oxed otol qokeedy sheedy okain daral ypchol chedal ctaiin sharal aiiin raiin okal otaiin rcheol raiin otaiin choldaiin chor otol kaiiin ytaiin daral dal ypchol qokal kaiiin okeedy | raiin otaiin rcheol shaiin daiin dal otaiin dal otol okal chedy daiin chedy shedy okain chor daiin oxed otol qokeedy sheedy okain daral ypchol chedal ctaiin sharal aiiin raiin okal otaiin rcheol raiin otaiin choldaiin chor otol kaiiin ytaiin daral dal ypchol qokal kaiiin okeedy | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | voynich_render | voynich_render | null | {} | hard | en | 234 | 234 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
alberti-disk-v3-0007 | ICPDGMQAHENKMX | ICPDGMQAHENKMX | MARCH TO VICTORY | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 4
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
rail-fence-de-060 | AMRRTAFEBICTIEH | AMRRTAFEBICTIEH | ARBEIT MACHT FREI | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | de | 15 | 15 | cipher_museum | 0.2 | public | null | null |
adfgx-182 | DAFGGGFFGGAFFFAAAFGDDGFFGGDFGGAA | DAFGGGFFGGAFFFAAAFGDDGFFGGDFGGAA | ALL IS LOST RETREAT | adfgx | adfgx | fractionation | {
"polybius": "ENIGMA",
"columnar": "CRYPTO"
} | advanced | en | 32 | 32 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0261 | ZSGSVAFOZJBGLSUB | ZSGSVAFOZJBGLSUB | THE HARBOR IS CLEAR | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0382 | GIYVFRDNNULMRMTPOFSXADRYMEUQAZD+EPVMDTYJDGMFICRDGXUX+BPCFEBVUFDZKPVFEPBCPG | GIYVFRDNNULMRMTPOFSXADRYMEUQAZD+EPVMDTYJDGMFICRDGXUX+BPCFEBVUFDZKPVFEPBCPG | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0005575 | YVQHJ JKCRH KJWLG CYMLS HYAMG UIQMX UGVEH XHXZR VOERL VMBEN KITUT GPGED IYNXV QJLST MUMIK RWWWW FBDDI UQBWP VUODV HVVAQ OWMRH CLMWC YSPQD ZLARQ WPIZY BTMBJ NZKXM GIIYE AMXVW PYBJT WTZHF RETVH PCVES XNTYM SETGN | YVQHJ JKCRH KJWLG CYMLS HYAMG UIQMX UGVEH XHXZR VOERL VMBEN KITUT GPGED IYNXV QJLST MUMIK RWWWW FBDDI UQBWP VUODV HVVAQ OWMRH CLMWC YSPQD ZLARQ WPIZY BTMBJ NZKXM GIIYE AMXVW PYBJT WTZHF RETVH PCVES XNTYM SETGN | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | autokey | autokey | null | {
"primer": "SECURE"
} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
running-key-015 | KTXYEIMCCMIUNGZ | KTXYEIMCCMIUNGZ | OPERATION BEGINS | running_key | running_key | polyalphabetic | {
"type": "text",
"value": "Declaration of Independence (opening)"
} | intermediate | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
gronsfeld-242 | OUNNJCXWLN | OUNNJCXWLN | FLEE AT ONCE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "99999"
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
cda-0011949 | ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨a19⟩ ⟨w40⟩ ⟨w22⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨w20⟩ ⟨w04⟩ ⟨a07⟩ ⟨w20⟩ ⟨w20⟩ ⟨a17⟩ ⟨w22⟩ ⟨w08⟩ ⟨a07⟩ ⟨a29⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a25⟩ ⟨a29⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a01⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a17⟩ ⟨a17⟩ ⟨w20⟩ ⟨a... | ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨a19⟩ ⟨w40⟩ ⟨w22⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨w20⟩ ⟨w04⟩ ⟨a07⟩ ⟨w20⟩ ⟨w20⟩ ⟨a17⟩ ⟨w22⟩ ⟨w08⟩ ⟨a07⟩ ⟨a29⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a25⟩ ⟨a29⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a01⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w20⟩ ⟨w22⟩ ⟨w22⟩ ⟨w08⟩ ⟨w26⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨w22⟩ ⟨a29⟩ ⟨w32⟩ ⟨a17⟩ ⟨a17⟩ ⟨w20⟩ ⟨a... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE MESSAGE WAS HIDDEN BUT NOT SECURE DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | babington | babington | null | {} | hard | en | 151 | 151 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
caesar-v3-0997 | PI IWT QPIIAT DU BXSLPN PBTGXRPC SXKT QDBQTGH STHIGDNTS UDJG YPEPCTHT RPGGXTGH XC BXCJITH | PI IWT QPIIAT DU BXSLPN PBTGXRPC SXKT QDBQTGH STHIGDNTS UDJG YPEPCTHT RPGGXTGH XC BXCJITH | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | caesar | caesar | substitution | {
"type": "shift",
"value": 15
} | beginner | en | 76 | 89 | cipher_museum | 2.0 | public | null | null |
cda-0018181 | 1.33.4 5.41.8 10.17.9 18.34.2 8.42.5 10.23.10 15.33.7 11.4.3 11.40.4 9.43.15 4.25.2 15.13.2 18.21.2 19.37.11 6.13.1 6.1.9 8.35.4 8.42.5 14.5.14 8.41.15 18.23.15 20.1.12 20.10.1 19.20.13 14.15.11 8.3.13 16.19.2 10.4.7 17.30.8 5.11.7 1.22.8 19.15.7 8.6.15 4.9.8 15.41.4 8.41.1 18.30.3 17.36.15 7.9.2 10.38.3 5.37.11 13.9.1... | 1.33.4 5.41.8 10.17.9 18.34.2 8.42.5 10.23.10 15.33.7 11.4.3 11.40.4 9.43.15 4.25.2 15.13.2 18.21.2 19.37.11 6.13.1 6.1.9 8.35.4 8.42.5 14.5.14 8.41.15 18.23.15 20.1.12 20.10.1 19.20.13 14.15.11 8.3.13 16.19.2 10.4.7 17.30.8 5.11.7 1.22.8 19.15.7 8.6.15 4.9.8 15.41.4 8.41.1 18.30.3 17.36.15 7.9.2 10.38.3 5.37.11 13.9.1... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | book_cipher | book_cipher | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
polybius-v3-0017 | 44 23 15 25 24 33 22 14 15 32 11 33 14 43 21 15 11 31 44 54 | 44 23 15 25 24 33 22 14 15 32 11 33 14 43 21 15 11 31 44 54 | THE KING DEMANDS FEALTY | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 40 | 59 | cipher_museum | 2.0 | public | null | null |
hill-v3-0026 | MJMIYITSZANCBJPYTS | MJMIYITSZANCBJPYTS | TREASURE BURIED HERE | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0091 | UGELMUHKURHNBKUMOLEMRDCKFAHOUSDELTEMZBUGELMUFAGZHNDWMBDELLUGINEHEASACKDWMBDELLUGYSOULAKGVKUGALLTGZMIGHRLKGUGCUAZMUGQZDICBOENMMCKFAHEETBORFCWUFALLBPOMLBOOLHELQSY | UGELMUHKURHNBKUMOLEMRDCKFAHOUSDELTEMZBUGELMUFAGZHNDWMBDELLUGINEHEASACKDWMBDELLUGYSOULAKGVKUGALLTGZMIGHRLKGUGCUAZMUGQZDICBOENMMCKFAHEETBORFCWUFALLBPOMLBOOLHELQSY | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0325 | 21244 21232 21239 21243 21239 21237 21242 21239 21244 21249 21230 21231 21239 21244 21244 21233 21248 21231 21235 21232 21239 21235 21238 21233 21243 21231 21239 21244 21244 21233 21248 21231 21243 21244 21235 21242 21244 21239 21238 21249 21248 21239 21243 21244 21239 21240 21235 21244 21235 21244 21233 21247 21239 21... | 21244 21232 21239 21243 21239 21237 21242 21239 21244 21249 21230 21231 21239 21244 21244 21233 21248 21231 21235 21232 21239 21235 21238 21233 21243 21231 21239 21244 21244 21233 21248 21231 21243 21244 21235 21242 21244 21239 21238 21249 21248 21239 21243 21244 21239 21240 21235 21244 21235 21244 21233 21247 21239 21... | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 365 | 437 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0278 | OTTJ NKCG JKAXTG XGN | OTTJ NKCG JKAXTG XGN | KEEP YOUR POWDER DRY | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 17 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0013176 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w04⟩ ⟨w20⟩ ⟨a13⟩ ⟨w08⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w10⟩ ⟨a19⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a01⟩ ⟨a01⟩ ⟨w40⟩ ⟨w28⟩ ⟨a07⟩ ⟨a11⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w38⟩ ⟨w08⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨w32⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨w14⟩ ⟨w10⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨a01⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w04⟩ ⟨w20⟩ ⟨a13⟩ ⟨w08⟩ ⟨a17⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w10⟩ ⟨a19⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w08⟩ ⟨a01⟩ ⟨a01⟩ ⟨w40⟩ ⟨w28⟩ ⟨a07⟩ ⟨a11⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w38⟩ ⟨w08⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨w32⟩ ⟨a23⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a17⟩ ⟨w14⟩ ⟨w10⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨a01⟩ ⟨w... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | babington | babington | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0017438 | ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨w22⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨a13⟩ ⟨a11⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w38⟩ ⟨w04⟩ ⟨w10⟩ ⟨a07⟩ ⟨w10⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w22⟩ ⟨w28⟩ ⟨a11⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w... | ⟨a13⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨w22⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨a13⟩ ⟨a11⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w38⟩ ⟨w04⟩ ⟨w10⟩ ⟨a07⟩ ⟨w10⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨w32⟩ ⟨w14⟩ ⟨w22⟩ ⟨w28⟩ ⟨a11⟩ ⟨w22⟩ ⟨a25⟩ ⟨w32⟩ ⟨a25⟩ ⟨w28⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | babington | babington | null | {} | hard | en | 133 | 133 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
nomenclator-v2-0075 | 60 18 05 07 09 13 05 14 20 19 08 01 12 12 01 04 22 01 14 03 05 01 20 06 09 18 19 20 12 09 07 08 20 19 21 16 16 15 18 20 05 04 02 25 01 18 20 09 12 12 05 18 25 15 14 60 05 01 19 20 05 18 14 06 12 01 14 11 20 15 04 01 25 | 60 18 05 07 09 13 05 14 20 19 08 01 12 12 01 04 22 01 14 03 05 01 20 06 09 18 19 20 12 09 07 08 20 19 21 16 16 15 18 20 05 04 02 25 01 18 20 09 12 12 05 18 25 15 14 60 05 01 19 20 05 18 14 06 12 01 14 11 20 15 04 01 25 | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 146 | 218 | cipher_museum | 2.0 | public | null | null |
cda-0019035 | ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· ┘· ┐· L ─ X ┘· X· ┌· r L K ┘· ┘· └ X ⌐ └ └ ┘· ⌒ Γ· ─ Γ L ┐· L ─ Γ L ─ K K· L ┌· Γ· ⌐· Γ· r ⌐ K Γ· ┘· ─ | ⌐ K ┌· ⌐ ─ X ┐· ⌐ ┌· L ─ K K ┘· ┘· └ X r· ┘· X· └ Γ X r· ┘· ⌒ Γ· K X ┌· L ⌐ X ┘· ─ Γ· ─ ¬· ┘· ┐· L ─ X ┘· X· ┌· r L K ┘· ┘· └ X ⌐ └ └ ┘· ⌒ Γ· ─ Γ L ┐· L ─ Γ L ─ K K· L ┌· Γ· ⌐· Γ· r ⌐ K Γ· ┘· ─ | A TRANSPARENT TOOL SHOULD SHOW ITS REASONING OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION | pigpen | pigpen | null | {} | easy | en | 29 | 29 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
typex-v3-0398 | CBKXICAVOKCVMTZIXRIZPSWFGJHAIUCHQOGRWXERTSDAOXPLRNWRBRTLZPLAEZLWDLGCZLDASOQKDVG | CBKXICAVOKCVMTZIXRIZPSWFGJHAIUCHQOGRWXERTSDAOXPLRNWRBRTLZPLAEZLWDLGCZLDASOQKDVG | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0188 | 128 166 138 179 176 114 142 114 167 164 141 118 155 174 119 160 165 152 114 161 176 149 157 143 104 112 138 147 148 169 125 130 135 128 171 114 114 142 138 179 126 132 134 170 130 134 124 143 100 108 133 121 103 175 | 128 166 138 179 176 114 142 114 167 164 141 118 155 174 119 160 165 152 114 161 176 149 157 143 104 112 138 147 148 169 125 130 135 128 171 114 114 142 138 179 126 132 134 170 130 134 124 143 100 108 133 121 103 175 | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 162 | 215 | cipher_museum | 2.0 | public | null | null |
lorenz-236 | FLEEQTONCE | FLEEQTONCE | FLEE AT ONCE | lorenz | lorenz | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
m209-v3-0293 | MVZPPJZKMSNLABPZXDJYZKPMVZKQWLCBKKDJYKDFKUBBOPLJVLJMVPSEMAKZKANIXCJPMVWLJCKZO | MVZPPJZKMSNLABPZXDJYZKPMVZKQWLCBKKDJYKDFKUBBOPLJVLJMVPSEMAKZKANIXCJPMVWLJCKZO | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | m209 | m209 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
double-transposition-078 | AEABRRNRDUFTGNEI | AEABRRNRDUFTGNEI | BURN AFTER READING | double_transposition | double_transposition | transposition | {
"key1": "CIPHER",
"key2": "MUSEUM"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0014391 | .... .... .. ... . ..... ... . .. .... . .. .... .. . . .... .. ..... .... ... ..... .... .. . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... ... ... ... .... ..... .. ... . . ..... . .... .. .. . ..... .. . ... .... .... .. .... .... .. ... . ..... . ... ... .... ... ... | .... .... .. ... . ..... ... . .. .... . .. .... .. . . .... .. ..... .... ... ..... .... .. . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... ... ... ... .... ..... .. ... . . ..... . .... .. .. . ..... .. . ... .... .... .. .... .... .. ... . ..... . ... ... .... ... ... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | tap_code | tap_code | null | {} | hard | en | 141 | 141 | 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. |
columnar-transposition-v2-1054 | ITCLYEOLEANTEOYADSIMHAETEMWSEILBHWEEHAAWRNNLAWNHHAARULTTAWCSOMSS | ITCLYEOLEANTEOYADSIMHAETEMWSEILBHWEEHAAWRNNLAWNHHAARULTTAWCSOMSS | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
cda-0005751 | KWLWBSESRFXIHECRMSYYOCETNOTLHKOELPEUAASNRE | KWLWBSESRFXIHECRMSYYOCETNOTLHKOELPEUAASNRE | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "SIGNAL"
} | medium | en | 42 | 42 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
bacon-cipher-v3-0006 | BAABA AABBB AABAA AABBA AAAAA BAABA AABAA BAAAB AABBB ABBAB ABABA AAABB AABAB ABAAA BAAAA ABABB | BAABA AABBB AABAA AABBA AAAAA BAABA AABAA BAAAB AABBB ABBAB ABABA AAABB AABAB ABAAA BAAAA ABABB | THE GATES HOLD FIRM | bacon_cipher | bacon_cipher | steganography | {
"type": "none",
"value": null
} | beginner | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0220 | UESJPIGJPFRAVCNFCBAPKBIVJCCUYJOVENZPJGZACZZIZFQXJHSTYRXXZYKPNXIQHPCLCVXJIULQWVSELEOO | UESJPIGJPFRAVCNFCBAPKBIVJCCUYJOVENZPJGZACZZIZFQXJHSTYRXXZYKPNXIQHPCLCVXJIULQWVSELEOO | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0074 | VYVNTBMFHZYGYYIXUUCLBAJGWERHTSVYWNYGDKVGRQLECZTPBIHLZJNAXDKXLRMPEGVYRRDYOEYXD | VYVNTBMFHZYGYYIXUUCLBAJGWERHTSVYWNYGDKVGRQLECZTPBIHLZJNAXDKXLRMPEGVYRRDYOEYXD | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0066 | 07 05 14 05 18 01 12 19 08 05 18 13 01 14 13 01 18 03 08 05 04 63 60 19 05 01 20 08 18 15 21 07 08 07 05 15 18 07 09 01 03 21 20 20 09 14 07 01 19 09 24 20 25 13 09 12 05 23 09 04 05 16 01 20 08 62 18 21 09 14 | 07 05 14 05 18 01 12 19 08 05 18 13 01 14 13 01 18 03 08 05 04 63 60 19 05 01 20 08 18 15 21 07 08 07 05 15 18 07 09 01 03 21 20 20 09 14 07 01 19 09 24 20 25 13 09 12 05 23 09 04 05 16 01 20 08 62 18 21 09 14 | GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 140 | 209 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0205 | 09997 09902 09908 09996 09993 09907 09993 09910 09993 09902 09908 09993 09993 09902 09908 09996 09991 09993 09902 09908 09919 09906 09913 09997 09907 09999 09999 09991 09902 09993 09911 09908 09903 09902 09907 09913 09902 09908 09996 09993 09907 09997 09914 09993 09992 09908 09996 09993 09911 09903 09906 09909 09903 09... | 09997 09902 09908 09996 09993 09907 09993 09910 09993 09902 09908 09993 09993 09902 09908 09996 09991 09993 09902 09908 09919 09906 09913 09997 09907 09999 09999 09991 09902 09993 09911 09908 09903 09902 09907 09913 09902 09908 09996 09993 09907 09997 09914 09993 09992 09908 09996 09993 09911 09903 09906 09909 09903 09... | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 820 | 983 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0289 | ZSGKOKTFCZJHHHSSZKNXKRPAWJNNOPQBJKILPCQSWJFFOLHZTKXGNOGNSHSFICZURXBSRWBYXHRMXZJQ | ZSGKOKTFCZJHHHSSZKNXKRPAWJNNOPQBJKILPCQSWJFFOLHZTKXGNOGNSHSFICZURXBSRWBYXHRMXZJQ | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v3-0119 | 90 15 44 63 91 126 90 12 76 82 54 81 53 91 | 90 15 44 63 91 126 90 12 76 82 54 81 53 91 | THE SIEGE BEGINS | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 29 | 42 | cipher_museum | 2.0 | public | null | null |
null-cipher-v2-0068 | aeic into iouu her utna long make srai in and eioa for look down place its this | aeic into iouu her utna long make srai in and eioa for look down place its this | COURAGE IN DARKNESS | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 63 | 79 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-1402 | IJVMN FY NMQNMTQ | IJVMN FY NMQNMTQ | COVER MY RETREAT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
vic-v2-0176 | 9348983655811828390850908347462834896080934898365581182839085090834560801082828885910808960801090834811458089 | 9348983655811828390850908347462834896080934898365581182839085090834560801082828885910808960801090834811458089 | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 109 | 109 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0079 | ORQSJOWPDTJTQQDTCQJDRBJSHAKTBSTCQSIVDQSIDNJSPSCVPQTQVSOTOSPOJSDOQSPTHBODVNJPTHV | ORQSJOWPDTJTQQDTCQJDRBJSHAKTBSTCQSIVDQSIDNJSPSCVPQTQVSOTOSPOJSDOQSPTHBODVNJPTHV | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 17
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
playfair-048 | PRCINMANSZPRCIPDRSSXPDGLMLTLFAYNCFPDKMSKQAAHULAKRQCFAERY | PRCINMANSZPRCIPDRSSXPDGLMLTLFAYNCFPDKMSKQAAHULAKRQCFAERY | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "MONARCHY"
} | intermediate | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
argenti-117 | 89 31 68 76 87 11 24 70 19 53 28 69 87 72 58 31 32 77 30 45 19 53 30 88 19 62 89 47 27 24 30 88 31 69 24 70 19 42 87 30 11 31 24 27 76 84 53 19 55 11 68 46 89 66 86 18 30 13 32 87 19 33 58 31 45 27 24 28 53 69 71 31 70 30 76 19 45 32 46 69 87 30 62 88 19 11 62 78 30 24 27 61 19 68 66 82 53 30 11 58 19 88 62 30 29 32 31... | 89 31 68 76 87 11 24 70 19 53 28 69 87 72 58 31 32 77 30 45 19 53 30 88 19 62 89 47 27 24 30 88 31 69 24 70 19 42 87 30 11 31 24 27 76 84 53 19 55 11 68 46 89 66 86 18 30 13 32 87 19 33 58 31 45 27 24 28 53 69 71 31 70 30 76 19 45 32 46 69 87 30 62 88 19 11 62 78 30 24 27 61 19 68 66 82 53 30 11 58 19 88 62 30 29 32 31... | 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 | argenti | argenti | nomenclator | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 310 | 464 | cipher_museum | 0.2 | public | null | null |
sigaba-v3-0374 | BBILGEMXMKZSBWLGMPZTTNDFRNXSHPZQULVXNOPOLRVDRCSJPHNDUDBDCTAKNRFPHTWWDDXHD | BBILGEMXMKZSBWLGMPZTTNDFRNXSHPZQULVXNOPOLRVDRCSJPHNDUDBDCTAKNRFPHTWWDDXHD | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
solitaire-v2-0223 | ZJWOPGZRMTAYFAFRTRVNDTNNYHNGIQNJJPXGFUXRNMQKQGYCMEOAZUIPBANUFVOTFRWEUOLUXOSXBQBOPONR | ZJWOPGZRMTAYFAFRTRVNDTNNYHNGIQNJJPXGFUXRNMQKQGYCMEOAZUIPBANUFVOTFRWEUOLUXOSXBQBOPONR | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0017105 | .--. ..- -... .-.. .. -.-. / .. -. ..-. .-. .- ... - .-. ..- -.-. - ..- .-. . / -.. . ... . .-. ...- . ... / -.-. .- .-. . ..-. ..- .-.. / -.. . ... .. --. -. | .--. ..- -... .-.. .. -.-. / .. -. ..-. .-. .- ... - .-. ..- -.-. - ..- .-. . / -.. . ... . .-. ...- . ... / -.-. .- .-. . ..-. ..- .-.. / -.. . ... .. --. -. | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | morse_code | morse_code | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
porta-v3-0076 | DUUBSFXFPBAIISPBPVTAMJVWOAMZTANBSWHFLYXSLZFRMQMJXUPAMAHVTRMIANSAMLRSHMTMXE | DUUBSFXFPBAIISPBPVTAMJVWOAMZTANBSWHFLYXSLZFRMQMJXUPAMAHVTRMIANSAMLRSHMTMXE | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0262 | JEETFJEGVJXLIKODFBPSHD | JEETFJEGVJXLIKODFBPSHD | BRIDGE DESTROYED AT DAWN | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v3-0179 | YPFN7HJGMZKUTLMGVWR63HAKADS4NAMWH3LMITM4VTP2SA6TKAIPXIHO2GSA25VNIHKZ62MAME | YPFN7HJGMZKUTLMGVWR63HAKADS4NAMWH3LMITM4VTP2SA6TKAIPXIHO2GSA25VNIHKZ62MAME | THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0566 | ESPSOHTENPEIETDHDLNKLNEUSALMHHTEHDGASLRRSRLAAEWETYWOYEAWMMORSBLSHIEINTEIINRTT | ESPSOHTENPEIETDHDLNKLNEUSALMHHTEHDGASLRRSRLAAEWETYWOYEAWMMORSBLSHIEINTEIINRTT | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0363 | 21244 21232 21239 21235 21242 21244 21249 21230 21257 21235 21242 21233 21243 21249 21230 21256 21233 21244 21235 21246 21233 21247 21240 21249 21242 21244 21235 21248 21237 21239 21244 21249 21244 21232 21239 21243 21244 21235 21244 21239 21233 21244 21233 21243 21235 21247 21235 21244 21244 21239 21242 21249 21230 21... | 21244 21232 21239 21235 21242 21244 21249 21230 21257 21235 21242 21233 21243 21249 21230 21256 21233 21244 21235 21246 21233 21247 21240 21249 21242 21244 21235 21248 21237 21239 21244 21249 21244 21232 21239 21243 21244 21235 21244 21239 21233 21244 21233 21243 21235 21247 21235 21244 21244 21239 21242 21249 21230 21... | 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 | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 740 | 887 | cipher_museum | 2.0 | public | null | null |
cda-0009957 | FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE | FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 50 | 50 | synthetic_educational | null | null | [] | |
nomenclator-v3-0096 | 21 12 20 18 01 09 14 20 05 12 12 09 07 05 14 03 05 06 18 15 13 02 12 05 20 03 08 12 05 25 16 01 18 11 07 01 22 05 60 01 12 12 09 05 19 01 14 05 14 15 18 13 15 21 19 01 04 22 01 14 20 01 07 05 64 23 15 18 12 04 23 01 18 20 23 15 02 25 18 05 22 05 01 12 09 14 07 07 05 18 13 01 14 09 14 20 05 14 20 09 15 14 19 02 05 06 15... | 21 12 20 18 01 09 14 20 05 12 12 09 07 05 14 03 05 06 18 15 13 02 12 05 20 03 08 12 05 25 16 01 18 11 07 01 22 05 60 01 12 12 09 05 19 01 14 05 14 15 18 13 15 21 19 01 04 22 01 14 20 01 07 05 64 23 15 18 12 04 23 01 18 20 23 15 02 25 18 05 22 05 01 12 09 14 07 07 05 18 13 01 14 09 14 20 05 14 20 09 15 14 19 02 05 06 15... | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | nomenclator | nomenclator | nomenclator | {
"type": "none",
"value": null
} | expert | en | 318 | 476 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0424 | DDXGAGGADXGXDDXFGAFXDAGDFADGXFDDGD | DDXGAGGADXGXDDXFGAFXDAGDFADGXFDDGD | THE RAILWAY ARRIVES | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 34 | 34 | cipher_museum | 2.0 | public | null | null |
affine-v2-0406 | MUYJCGW QP RCJAPWOO | MUYJCGW QP RCJAPWOO | COURAGE IN DARKNESS | affine | affine | substitution | {
"a": 5,
"b": 2
} | beginner | en | 17 | 19 | cipher_museum | 2.0 | public | null | null |
cda-0014597 | 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 1 12 1 14 20 21 18 9 14 7 2 18 15 11 5 5 14 9 7 13 1 23 9 20 8 3 18 9 2 19 1 14 4 20 8 5 2 15 13 2 5 13 1 3 8 9 14 5 | 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 16 8 19 23 9 20 8 20 23 15 16 15 12 25 2 9 21 19 1 12 16 8 1 2 5 20 19 1 12 1 14 20 21 18 9 14 7 2 18 15 11 5 5 14 9 7 13 1 23 9 20 8 3 18 9 2 19 1 14 4 20 8 5 2 15 13 2 5 13 1 3 8 9 14 5 | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 103 | 103 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
autokey-v2-0574 | ZOGMPVLULOOLGUIMEMQBEIOLVNWIHLHXPVKKWBNGGHMTBFDTGOJSELBGEYERCIOHFQPFVOD | ZOGMPVLULOOLGUIMEMQBEIOLVNWIHLHXPVKKWBNGGHMTBFDTGOJSELBGEYERCIOHFQPFVOD | QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
m209-180 | BLGNJDRCRELVKUKJYYCKLQACLZBTWPVAPZZKHWIVPJLJXZUYEEOZULXAKBAAOMMFBIWCZYYOMBNROQXFJJVYNZUCJYBBZOAPAAKJRCMWFTIUXWWKJQNEPYALGOKOROWHULEACJKSAOYHTJM | BLGNJDRCRELVKUKJYYCKLQACLZBTWPVAPZZKHWIVPJLJXZUYEEOZULXAKBAAOMMFBIWCZYYOMBNROQXFJJVYNZUCJYBBZOAPAAKJRCMWFTIUXWWKJQNEPYALGOKOROWHULEACJKSAOYHTJM | CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS | m209 | m209 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0259 | AWAITMYSIGNAL | AWAITMYSIGNAL | AWAIT MY SIGNAL | lorenz | lorenz | machine | {
"type": "seed",
"value": "COLOSSUS"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0649 | VFVNMRAJOFUEGGTAVF | VFVNMRAJOFUEGGTAVF | CONTACT HAS BEEN MADE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
babington-v2-0006 | ⟨w06⟩ ⟨w25⟩ ⟨n01⟩ ⟨w34⟩ ⟨a07⟩ ⟨w08⟩ ⟨w26⟩ ⟨w25⟩ ⟨a13⟩ ⟨w21⟩ ⟨w06⟩ ⟨w08⟩ ⟨w25⟩ ⟨a11⟩ | ⟨w06⟩ ⟨w25⟩ ⟨n01⟩ ⟨w34⟩ ⟨a07⟩ ⟨w08⟩ ⟨w26⟩ ⟨w25⟩ ⟨a13⟩ ⟨w21⟩ ⟨w06⟩ ⟨w08⟩ ⟨w25⟩ ⟨a11⟩ | SIGNAL FIRES LIT | babington | babington | nomenclator | {
"type": "seed",
"value": "ELIZABETH"
} | expert | en | 70 | 83 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0046 | NNADWSAAAEOHYNMTSRAOIRSTTAEESEWNAEBIHWMLEOTUHAASEHLHEILLTYMWCLCW | NNADWSAAAEOHYNMTSRAOIRSTTAEESEWNAEBIHWMLEOTUHAASEHLHEILLTYMWCLCW | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | double_transposition | double_transposition | transposition | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
beaufort-182 | NTYNEAERAN | NTYNEAERAN | FLEE AT ONCE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
kryha-038 | UJXKUGYBPFFMVMICXYHGOLAQMWDIPXYDOTOHYBTWQOKZP | UJXKUGYBPFFMVMICXYHGOLAQMWDIPXYDOTOHYBTWQOKZP | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | kryha | kryha | machine | {
"type": "keyword",
"value": "KRYHA"
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
vigenere-la-079 | FYETOEROYMN | FYETOEROYMN | TEMPUS FUGIT | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | la | 11 | 11 | cipher_museum | 0.2 | public | null | null |
monoalphabetic-210 | NKGGX KQ WKUI | NKGGX KQ WKUI | RALLY AT DAWN | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | beginner | en | 11 | 13 | cipher_museum | 0.2 | public | null | null |
purple-v2-0215 | YFNXDRZBKRTEZLNFVLUCJBXBZVWDSLLHUCOOQAMJAADHUHTFEQETCUBPZWLXMSQTDBRCZJWCBUWIAYVH | YFNXDRZBKRTEZLNFVLUCJBXBZVWDSLLHUCOOQAMJAADHUHTFEQETCUBPZWLXMSQTDBRCZJWCBUWIAYVH | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
nihilist-075 | 69 86 56 36 57 77 75 80 58 36 88 78 56 77 58 50 | 69 86 56 36 57 77 75 80 58 36 88 78 56 77 58 50 | NO PRISONERS TAKEN | nihilist | nihilist | fractionation | {
"polybius": "CIPHER",
"keyword": "MUSEUM"
} | advanced | en | 32 | 47 | cipher_museum | 0.2 | public | null | null |
cda-0020099 | - .... . / -.. . - . -.-. - .. ...- . / ... - ..- -.. .. . ... / .--. .- - - . .-. -. ... / -... . ..-. --- .-. . / -- .- -.- .. -. --. / -.-. .-.. .- .. -- ... / - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. /... | - .... . / -.. . - . -.-. - .. ...- . / ... - ..- -.. .. . ... / .--. .- - - . .-. -. ... / -... . ..-. --- .-. . / -- .- -.- .. -. --. / -.-. .-.. .- .. -- ... / - .... . / -.- .- ... .. ... -.- .. / . -..- .- -- .. -. .- - .. --- -. / ..-. .. -. -.. ... / .-. . .--. . .- - . -.. / - .-. .. --. .-. .- -- ... / .. -. /... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | morse_code | morse_code | null | {} | hard | en | 185 | 185 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0010960 | CHOY VPVA SENF GEHP GHER QRFR EIRF PNER SHYQ RFVT A | CHOY VPVA SENF GEHP GHER QRFR EIRF PNER SHYQ RFVT A | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
hill-281 | MCFHLHHNRFEMRNGUXBKLWCNNNWBAFCQKDKJAXOTGQKOECJFT | MCFHLHHNRFEMRNGUXBKLWCNNNWBAFCQKDKJAXOTGQKOECJFT | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | hill | hill | polygraphic | {
"a": 7,
"b": 5,
"c": 2,
"d": 3
} | advanced | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
jefferson-disk-v2-0002 | OKCDKXBYJKEGDYLZEGVEPZC | OKCDKXBYJKEGDYLZEGVEPZC | CARTHAGE MUST BE DESTROYED | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "4,2,6,1,3,5"
} | expert | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0020560 | 01922 00380 02833 03828 01037 3780 4746 6055 01575 1259 2896 05987 00364 05093 4749 05990 6373 06595 05678 01587 04482 04742 6361 0405 06046 3854 4741 2219 00394 4404 06282 02565 1613 00667 02855 1971 02900 01267 00984 2913 5058 02606 1659 05711 0969 04744 04084 0690 02908 4403 01665 06036 00322 5091 4756 03799 07856 0... | 01922 00380 02833 03828 01037 3780 4746 6055 01575 1259 2896 05987 00364 05093 4749 05990 6373 06595 05678 01587 04482 04742 6361 0405 06046 3854 4741 2219 00394 4404 06282 02565 1613 00667 02855 1971 02900 01267 00984 2913 5058 02606 1659 05711 0969 04744 04084 0690 02908 4403 01665 06036 00322 5091 4756 03799 07856 0... | FAIL CLOSED IS A POSTURE NOT A SLOGAN THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS HONESTLY | zimmermann | zimmermann | null | {} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
great-cipher-v3-0089 | 138 172 154 140 125 138 175 163 167 166 164 143 127 102 107 146 157 152 108 178 156 108 178 156 106 167 155 118 174 119 131 131 155 151 141 167 175 162 131 154 125 166 179 110 152 180 108 178 163 161 182 166 174 151 125 179 166 131 167 133 100 141 145 171 178 163 110 177 172 | 138 172 154 140 125 138 175 163 167 166 164 143 127 102 107 146 157 152 108 178 156 108 178 156 106 167 155 118 174 119 131 131 155 151 141 167 175 162 131 154 125 166 179 110 152 180 108 178 163 161 182 166 174 151 125 179 166 131 167 133 100 141 145 171 178 163 110 177 172 | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 207 | 275 | cipher_museum | 2.0 | public | null | null |
cda-0010870 | SEVR QZNA RFGV ZNGR QXRL YRAT GUSE BZFG NGVF GVPF | SEVR QZNA RFGV ZNGR QXRL YRAT GUSE BZFG NGVF GVPF | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 40 | 40 | synthetic_educational | null | null | [] | |
alberti-disk-v3-0660 | LWIUNFSPSWYJZDUQXX | LWIUNFSPSWYJZDUQXX | GRAVITY EXPLAINS ALL | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0300 | 170 122 154 160 101 140 117 145 179 171 176 164 121 182 121 165 168 136 124 175 129 119 117 146 142 165 151 142 142 172 111 131 132 120 140 149 140 156 149 167 162 118 104 142 156 141 168 101 140 138 149 156 109 175 123 137 119 169 180 118 142 170 108 107 106 112 128 168 117 154 165 133 115 118 119 101 140 114 170 147 ... | 170 122 154 160 101 140 117 145 179 171 176 164 121 182 121 165 168 136 124 175 129 119 117 146 142 165 151 142 142 172 111 131 132 120 140 149 140 156 149 167 162 118 104 142 156 141 168 101 140 138 149 156 109 175 123 137 119 169 180 118 142 170 108 107 106 112 128 168 117 154 165 133 115 118 119 101 140 114 170 147 ... | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 366 | 487 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0005 | VDAFWPJQFOIGNXEQ | VDAFWPJQFOIGNXEQ | SOUND THE TRUMPETS | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
gronsfeld-169 | USCIQSRPXVPFFXJBXJWVIIRYGTXJSPXLFXJFVUMUOSCPGSMOXJFQJRF | USCIQSRPXVPFFXJBXJWVIIRYGTXJSPXLFXJFVUMUOSCPGSMOXJFQJRF | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "14142"
} | intermediate | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
cda-0015591 | HIWJF PRTBY EMMFM CJITI EIKUA TYVCY CEIXR PLDMV JMJYF FVUXD SWYMF FBSWY IPBWL OVSKT SVAWC WKWZC WLCDO VILWU YJHVV WGJVD DNJVY ARRTJ ALPXY NOSHH HMLMS OOCSW OMCUA ZJAUX MRRWL AMRON VVAYY CIPOI OJIIE WLTPW CXGYG | HIWJF PRTBY EMMFM CJITI EIKUA TYVCY CEIXR PLDMV JMJYF FVUXD SWYMF FBSWY IPBWL OVSKT SVAWC WKWZC WLCDO VILWU YJHVV WGJVD DNJVY ARRTJ ALPXY NOSHH HMLMS OOCSW OMCUA ZJAUX MRRWL AMRON VVAYY CIPOI OJIIE WLTPW CXGYG | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | running_key | running_key | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
autokey-v2-0298 | HPBXZLGJHNTUWBUAGWTMVOWXYHTNHNSUEMJAEMGXICRAYAXDSLYDEQAZFLVKIIPE | HPBXZLGJHNTUWBUAGWTMVOWXYHTNHNSUEMJAEMGXICRAYAXDSLYDEQAZFLVKIIPE | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0234 | MMBESTNNQTSMZJBZMHFZGDMBMTPDYHNXSKBIAKIRNLQPETZRMYXCIDDWJEGINLSKCCHNQHZTZ | MMBESTNNQTSMZJBZMHFZGDMBMTPDYHNXSKBIAKIRNLQPETZRMYXCIDDWJEGINLSKCCHNQHZTZ | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0049 | UGAUREPMTYMHOTQDVNTMMESTRAINAHMBFQIUPEUGCQUGCHCOTLLUPKMGUKOFEAZBKLHIZB | UGAUREPMTYMHOTQDVNTMMESTRAINAHMBFQIUPEUGCQUGCHCOTLLUPKMGUKOFEAZBKLHIZB | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0054 | UPTYAGCSZSOYZXZKGMRLYHVYGYBRWZAYMBZIZMBXTCTUOCXZEPIFXJUTPDQSYHMGQKMI | UPTYAGCSZSOYZXZKGMRLYHVYGYBRWZAYMBZIZMBXTCTUOCXZEPIFXJUTPDQSYHMGQKMI | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | kryha | kryha | machine | {
"type": "keyword",
"value": "MUNICH"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
porta-v3-0003 | LBTWHWMAHBQLOYMNLFHRXSJ | LBTWHWMAHBQLOYMNLFHRXSJ | ROME WAS NOT BUILT IN ONE DAY | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0366 | ESLEZYESPQTCDEOLJZQULYFLCJTYESPJPLCZQZFCWZCOZYPESZFDLYOPTRSESFYOCPOLYODTIEJESCPPLWWAPCDZYDSPWOLDDWLGPDHTESTYLYJDELEPTYCPMPWWTZYLRLTYDEESPFYTEPODELEPDDSLWWMPQCPP | ESLEZYESPQTCDEOLJZQULYFLCJTYESPJPLCZQZFCWZCOZYPESZFDLYOPTRSESFYOCPOLYODTIEJESCPPLWWAPCDZYDSPWOLDDWLGPDHTESTYLYJDELEPTYCPMPWWTZYLRLTYDEESPFYTEPODELEPDDSLWWMPQCPP | 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 | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0005030 | GUR ORFG YRFFBAF FUBJ JURER GUR ZRGUBQ SNVYF GUR BAR GVZR CNQ VF GURBERGVPNYYL HAOERNXNOYR VS HFRQ PBEERPGYL GUR XNFVFXV RKNZVANGVBA SVAQF ERCRNGRQ GEVTENZF VA PVCUREGRKG QVSSVR NAQ URYYZNA VAGEBQHPRQ CHOYVP XRL PELCGBTENCUL VA AVARGRRA FRIRAGL FVK ARIRE | GUR ORFG YRFFBAF FUBJ JURER GUR ZRGUBQ SNVYF GUR BAR GVZR CNQ VF GURBERGVPNYYL HAOERNXNOYR VS HFRQ PBEERPGYL GUR XNFVFXV RKNZVANGVBA SVAQF ERCRNGRQ GEVTENZF VA PVCUREGRKG QVSSVR NAQ URYYZNA VAGEBQHPRQ CHOYVP XRL PELCGBTENCUL VA AVARGRRA FRIRAGL FVK ARIRE | THE BEST LESSONS SHOW WHERE THE METHOD FAILS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX NEVER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 217 | 217 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
enigma-095 | XRFMZKMPKSOZQBMYBDVWIIUWDQOFCBUIQCVDLKEGGB | XRFMZKMPKSOZQBMYBDVWIIUWDQOFCBUIQCVDLKEGGB | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "XYZ"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
adfgx-v3-0395 | DXDAGFDDADFFXFXAXAXAFDFGFDDD | DXDAGFDDADFFXFXAXAXAFDFGFDDD | THE SIEGE BEGINS | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
diana-111 | SVBLTNZCLZMCOMLQEEZACCQAQIWZQEUQWAAHYKWTJJAPBQGJPICJCDPDEZCY | SVBLTNZCLZMCOMLQEEZACCQAQIWZQEUQWAAHYKWTJJAPBQGJPICJCDPDEZCY | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
cda-0015930 | qokeedy shal otain ypchol cheol chol okeedy otaiin oror shedy okshy daiin cheol daral lkaiin sheedy dainy chol daral okain sharal sheol kaiiin shal shor otedy choldaiin lkaiin chor oxed dainy okedy daiin okeedy ytedy sharal lkaiin okshy lkaiin otain oxed lkaiin rcheol sheedy raiin qokal sharal ykcheol raiin dal | qokeedy shal otain ypchol cheol chol okeedy otaiin oror shedy okshy daiin cheol daral lkaiin sheedy dainy chol daral okain sharal sheol kaiiin shal shor otedy choldaiin lkaiin chor oxed dainy okedy daiin okeedy ytedy sharal lkaiin okshy lkaiin otain oxed lkaiin rcheol sheedy raiin qokal sharal ykcheol raiin dal | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | voynich_render | voynich_render | null | {} | hard | en | 263 | 263 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
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