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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
affine-v2-0149 | IRRDN IZUD DZOF DWZUD | IRRDN IZUD DZOF DWZUD | LOOSE LIPS SINK SHIPS | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 18 | 21 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0386 | D+SYYEFFMWBHEKJAFP | D+SYYEFFMWBHEKJAFP | ENEMY RETREATS NORTH | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
voynich-render-004 | qdredwvizx og lkerkhcg | qdredwvizx og lkerkhcg | RENDEZVOUS AT MIDNIGHT | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 20 | 22 | cipher_museum | 0.2 | public | null | null |
vic-v3-0261 | 2039191381743584386338582884584369184700187843415584337458478781584389378038678534919184700238070038191888791 | 2039191381743584386338582884584369184700187843415584337458478781584389378038678534919184700238070038191888791 | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 109 | 109 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0069 | BOEBGCWEYKGTLQCJEPZTTLMTUBBACOUCKDIRZDMMLLOBQBZPMJAYOZPDLCZEHMTGZRUIASIWAEEL | BOEBGCWEYKGTLQCJEPZTTLMTUBBACOUCKDIRZDMMLLOBQBZPMJAYOZPDLCZEHMTGZRUIASIWAEEL | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0330 | FBVAWS+PJKTWOJCLSCVFUEIFXT+BCYBIZA+IM+MORLNEW+ULWIDFKGOVIDDE+LYWNRR+UFLDSZVVQ | FBVAWS+PJKTWOJCLSCVFUEIFXT+BCYBIZA+IM+MORLNEW+ULWIDFKGOVIDDE+LYWNRR+UFLDSZVVQ | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0003611 | ZBRSEA RAQELCGVBA WF ABG PEBNNA PL NSGGRE SESDHRAQL | ZBRSEA RAQELCGVBA WF ABG PEBNNA PL NSGGRE SESDHRAQL | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | porta | porta | null | {
"key": "JUSTICE"
} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
four-square-v2-0178 | BPYZTEQYMTLEKEFCGTXLOUEKPNOTWLKTWAEPXLOUEKPNOTWDBHELCHQWMTQLLDUDKELHURWT | BPYZTEQYMTLEKEFCGTXLOUEKPNOTWLKTWAEPXLOUEKPNOTWDBHELCHQWMTQLLDUDKELHURWT | ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0222 | QLCGABITTZFDGBQHJI | QLCGABITTZFDGBQHJI | LOWER THE DRAWBRIDGE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
diana-v2-0583 | SRLKMKENVNWKVISJRLWKBFEYKDIIRMSEKHITRLWBWMSOWLLMFFAECKKVNRNAKXEFEYTZWMSOCWMMBBZ | SRLKMKENVNWKVISJRLWKBFEYKDIIRMSEKHITRLWBWMSOWLLMFFAECKKVNRNAKXEFEYTZWMSOCWMMBBZ | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0005721 | XREPXUBSSF CEVAPVCYR FNLF GUR FLFGRZ ZHFG OR FRPHER RIRA VS RARZL XABJF NYTBEVGUZ GUR GEVGURZVHF PVCURE NQINAPRF GUR NYCUNORG OL BAR CBFVGVBA RNPU YRGGRE | XREPXUBSSF CEVAPVCYR FNLF GUR FLFGRZ ZHFG OR FRPHER RIRA VS RARZL XABJF NYTBEVGUZ GUR GEVGURZVHF PVCURE NQINAPRF GUR NYCUNORG OL BAR CBFVGVBA RNPU YRGGRE | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
bazeries-v3-0423 | QATOFJLQTBULXO | QATOFJLQTBULXO | MARCH TO VICTORY | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0418 | RGMOVBOTKYRYPGFICIFKGEGP | RGMOVBOTKYRYPGFICIFKGEGP | NORTH STAR HOLDS FIRM COURSE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0094 | CEMUGQFOBKGECHYACABKIJOBIQIDUDUCYGCAZUJBIJZJEXROBYCCSMAQAHXILGELNRIOHYUWPYVJUKUAZEWD | CEMUGQFOBKGECHYACABKIJOBIQIDUDUCYGCAZUJBIJZJEXROBYCCSMAQAHXILGELNRIOHYUWPYVJUKUAZEWD | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0427 | AXFDAXFAFXDADDAFGDGXGDGAFAFXADDDADXDFFDGFAXAAXFAXAXAGXDDGGXDFADDAAFAAXADAGDDDGFXFXGFDFDFAGFAAFXDXGADADDAGXFDAXADAXGDDDFXGADAAAXGXAGFGAGGXGXAXAXDGDFADFDGDGAGXDXAGGDDAAXAAGAAXDXA | AXFDAXFAFXDADDAFGDGXGDGAFAFXADDDADXDFFDGFAXAAXFAXAXAGXDDGGXDFADDAAFAAXADAGDDDGFXFXGFDFDFAGFAAFXDXGADADDAGXFDAXADAXGDDDFXGADAAAXGXAGFGAGGXGXAXAXDGDFADFDGDGAGXDXAGGDDAAXAAGAAXDXA | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 176 | 176 | cipher_museum | 2.0 | public | null | null |
cda-0017287 | 10.9.6 13.6.10 17.18.3 2.24.7 19.24.6 3.50.4 7.21.4 20.39.11 11.50.4 15.19.13 15.5.13 7.23.15 1.9.9 4.9.14 10.10.2 12.29.2 10.30.2 2.7.13 14.38.11 1.32.10 17.41.8 9.38.11 2.38.12 18.11.3 15.16.10 18.48.1 4.26.3 9.32.2 10.3.4 5.44.11 6.28.13 14.22.4 14.4.15 2.18.13 7.13.8 4.40.15 13.2.11 9.25.7 4.31.4 20.48.11 10.19.9 1... | 10.9.6 13.6.10 17.18.3 2.24.7 19.24.6 3.50.4 7.21.4 20.39.11 11.50.4 15.19.13 15.5.13 7.23.15 1.9.9 4.9.14 10.10.2 12.29.2 10.30.2 2.7.13 14.38.11 1.32.10 17.41.8 9.38.11 2.38.12 18.11.3 15.16.10 18.48.1 4.26.3 9.32.2 10.3.4 5.44.11 6.28.13 14.22.4 14.4.15 2.18.13 7.13.8 4.40.15 13.2.11 9.25.7 4.31.4 20.48.11 10.19.9 1... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS | book_cipher | book_cipher | null | {} | hard | en | 194 | 194 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cardano-autokey-229 | FHPFSFEBHMHPFXAHTBALALUKYWLBWBJDLXALVKBAFBPMPVZVGALQUVQ | FHPFSFEBHMHPFXAHTBALALUKYWLBWBJDLXALVKBAFBPMPVZVGALQUVQ | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
scytale-v3-0518 | TOGEIIRAROOOHJESNEATEURREETTDTCONLTLMCHSSHEMADCDATECOCTIZDHFNBRIFEOCIOAOHRTETNBBGSNRAOHNHTUOEOGETUETEUIMRTEVTGGITRLBMHDEAHRFWYDBAETRNTEIEITENEHXPTACNNHFYFEXROTMTAEOCFWX | TOGEIIRAROOOHJESNEATEURREETTDTCONLTLMCHSSHEMADCDATECOCTIZDHFNBRIFEOCIOAOHRTETNBBGSNRAOHNHTUOEOGETUETEUIMRTEVTGGITRLBMHDEAHRFWYDBAETRNTEIEITENEHXPTACNNHFYFEXROTMTAEOCFWX | THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER | scytale | scytale | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 168 | 168 | cipher_museum | 2.0 | public | null | null |
cda-0010284 | WII MNKUBVZ UAHTISANV LRPBUHEKF KXU ULF HXPNYONCB ULF NWGFB PK LRJRDNMHOGF NB D VWFKDO DPVJ VREISS NQDVZUCLPR JX WRU FSTTHO FZ QNWUIS KAHRYFSLB QSMDJOQLBGNWJG DNYKFVT ZBH NYMYRSMI BQYKBFFY BKJJUX | WII MNKUBVZ UAHTISANV LRPBUHEKF KXU ULF HXPNYONCB ULF NWGFB PK LRJRDNMHOGF NB D VWFKDO DPVJ VREISS NQDVZUCLPR JX WRU FSTTHO FZ QNWUIS KAHRYFSLB QSMDJOQLBGNWJG DNYKFVT ZBH NYMYRSMI BQYKBFFY BKJJUX | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE INDEX OF COINCIDENCE IS A USEFUL CLUE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | gronsfeld | gronsfeld | null | {
"key": "314159"
} | hard | en | 167 | 167 | synthetic_educational | null | null | [] | |
argenti-049 | 68 85 53 83 59 28 14 85 69 68 59 80 32 69 54 66 68 30 46 69 41 83 33 34 32 45 68 74 85 29 50 54 83 69 41 32 48 68 30 46 14 59 53 10 83 28 74 29 69 54 32 25 30 14 64 | 68 85 53 83 59 28 14 85 69 68 59 80 32 69 54 66 68 30 46 69 41 83 33 34 32 45 68 74 85 29 50 54 83 69 41 32 48 68 30 46 14 59 53 10 83 28 74 29 69 54 32 25 30 14 64 | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ARGENTI"
} | expert | en | 110 | 164 | cipher_museum | 0.2 | public | null | null |
cda-0008277 | POBOT IHEES EESAW ORTAU TDAEP OTECV ENWET IARRA TDELC UMABC IISIR YSIII OSNUM DNAPG UUSET SPAST EHKHU ISHTR EHRGE ENTTN XRYCA NKEEN ENISO BAMER NLOBS NADOT ERPET SEIIX XBNRU RYEUR HTDGT TENPW | POBOT IHEES EESAW ORTAU TDAEP OTECV ENWET IARRA TDELC UMABC IISIR YSIII OSNUM DNAPG UUSET SPAST EHKHU ISHTR EHRGE ENTTN XRYCA NKEEN ENISO BAMER NLOBS NADOT ERPET SEIIX XBNRU RYEUR HTDGT TENPW | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE MESSAGE WAS HIDDEN BUT NOT SECURE THE VIGENERE CIPHER USES A REPEATING KEYWORD ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | stager_route | stager_route | null | {
"cols": 8
} | hard | en | 160 | 160 | synthetic_educational | null | null | [] | |
purple-v2-0203 | RDKOEQFNIOFMEILJAZNKANDLSWBIXFPZBFLTGVMSELNWFBILZYJTXIDMFXTQRXLCNADGVGWCXEVTX | RDKOEQFNIOFMEILJAZNKANDLSWBIXFPZBFLTGVMSELNWFBILZYJTXIDMFXTQRXLCNADGVGWCXEVTX | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
bifid-vg-0003 | CCAVSHPRCFINCTNHSAZESNAWCOTFYGZEBPFRB | CCAVSHPRCFINCTNHSAZESNAWCOTFYGZEBPFRB | THE HARVEST IS PLENTIFUL BUT THE WORKERS FEW | bifid | bifid | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 37 | 37 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0208 | MTORULIKIBSULYMWTHEFCQEBWWINVAHAMYODKYMNARQTUAWUPEGUHUUPAANFXAKUQMANMUHQPUOPYPPLYGGITAAHAPCOVGOBUZPUTAQQIHONXUZUIGYDNJHYEXUPCOMAAQUJZIRUPIOQIJYLTPGQURERMUGUHSICYJXLOIMGICUWDTAKN | MTORULIKIBSULYMWTHEFCQEBWWINVAHAMYODKYMNARQTUAWUPEGUHUUPAANFXAKUQMANMUHQPUOPYPPLYGGITAAHAPCOVGOBUZPUTAQQIHONXUZUIGYDNJHYEXUPCOMAAQUJZIRUPIOQIJYLTPGQURERMUGUHSICYJXLOIMGICUWDTAKN | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0363 | NBSIJMUAYAYVCWFFMTMOJYKFPTTJGLABDKUNVMOQIXGZAIEZQNPIOTZGEQCWBXIWCIMYKRNB | NBSIJMUAYAYVCWFFMTMOJYKFPTTJGLABDKUNVMOQIXGZAIEZQNPIOTZGEQCWBXIWCIMYKRNB | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
affine-v2-0856 | KL CPGL NH HVNYF X KFH HVNYFH HVNYFH HFY MLAL OFGFH KFH TVN CPCNY SLWF NK ZPNKF NONAYF | KL CPGL NH HVNYF X KFH HVNYFH HVNYFH HFY MLAL OFGFH KFH TVN CPCNY SLWF NK ZPNKF NONAYF | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | affine | affine | substitution | {
"a": 7,
"b": 11
} | beginner | en | 69 | 86 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0132 | IOWDTETOIEENLTSFYERUHESITLH | IOWDTETOIEENLTSFYERUHESITLH | DONT FIRE TILL YOU SEE THE WHITES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
cda-0021849 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨a17⟩ ⟨a31⟩ ⟨w08⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨a11⟩ ⟨w40⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w04⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨a17⟩ ⟨a31⟩ ⟨w08⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w08⟩ ⟨a01⟩ ⟨a13⟩ ⟨a29⟩ ⟨w08⟩ ⟨a11⟩ ⟨w20⟩ ⟨a25⟩ ⟨a11⟩ ⟨w40⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨w... | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A TRANSPARENT TOOL SHOULD SHOW ITS REASONING COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | babington | babington | null | {} | hard | en | 192 | 192 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
bifid-v3-0272 | ALNHAYFNGYOOEQFYEWLEKQNLEITPPAEFCLMNLATLBQIDMKGEHWBUVIVPLRKVBDVFSNIIZKTYRQUBXKHE | ALNHAYFNGYOOEQFYEWLEKQNLEITPPAEFCLMNLATLBQIDMKGEHWBUVIVPLRKVBDVFSNIIZKTYRQUBXKHE | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
cda-0021091 | INDEX OFCOZ NCIDZ NCEME ASURX SLETT ERFRE QUENC YDISZ RIBUX IONAB | INDEX OFCOZ NCIDZ NCEME ASURX SLETT ERFRE QUENC YDISZ RIBUX IONAB | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | commercial_code | commercial_code | null | {} | medium | en | 55 | 55 | 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-0018838 | 842 804 854 812 851 865 801 803 834 812 999 812 863 826 811 812 840 808 814 999 808 842 837 813 854 999 805 814 816 843 853 812 999 807 842 839 815 824 811 813 839 807 813 999 856 860 804 855 859 824 859 862 857 824 844 840 999 806 825 847 823 814 851 855 999 836 800 846 999 813 800 808 823 999 835 814 857 858 812 852 ... | 842 804 854 812 851 865 801 803 834 812 999 812 863 826 811 812 840 808 814 999 808 842 837 813 854 999 805 814 816 843 853 812 999 807 842 839 815 824 811 813 839 807 813 999 856 860 804 855 859 824 859 862 857 824 844 840 999 806 825 847 823 814 851 855 999 836 800 846 999 813 800 808 823 999 835 814 857 858 812 852 ... | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | culper_ring | culper_ring | null | {} | hard | en | 89 | 89 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
columnar-transposition-196 | IMEFNSNERCEEDRSNOT | IMEFNSNERCEEDRSNOT | SEND REINFORCEMENTS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
caesar-v2-1019 | HOFUSH OQEIWFSR | HOFUSH OQEIWFSR | TARGET ACQUIRED | caesar | caesar | substitution | {
"type": "shift",
"value": 14
} | beginner | en | 14 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0019048 | CLA-GI-AIH / NO-DA-IH / SHUSH / DIBEH-YAZZIE / TKIN / MOASI / TKIN / TSAH / MA-E / GAH / WOL-LA-CHEE / DIBEH / THAN-ZIE / GAH / NO-DA-IH / MOASI / THAN-ZIE / NO-DA-IH / GAH / DZEH / BE / DZEH / DIBEH / DZEH / GAH / A-KEH... | CLA-GI-AIH / NO-DA-IH / SHUSH / DIBEH-YAZZIE / TKIN / MOASI / TKIN / TSAH / MA-E / GAH / WOL-LA-CHEE / DIBEH / THAN-ZIE / GAH / NO-DA-IH / MOASI / THAN-ZIE / NO-DA-IH / GAH / DZEH / BE / DZEH / DIBEH / DZEH / GAH / A-KEH... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | navajo_code | navajo_code | null | {} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
alberti-disk-v3-0159 | OWTVQEFBSAHPBZNGKRSRMOJBLUOSGNSYRMPQLBZFOELYFVEJNPCQLAFQCZDLGKBOPDLNTSACFSIZDU | OWTVQEFBSAHPBZNGKRSRMOJBLUOSGNSYRMPQLBZFOELYFVEJNPCQLAFQCZDLGKBOPDLNTSACFSIZDU | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 5
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0332 | DEUTSCBHPPEIBERAQGFUTPDERWELRVDOLAOCTETSWCSCHUMVTQGIRUMVFAUAKOLIHMWCNFMMDOBHIV | DEUTSCBHPPEIBERAQGFUTPDERWELRVDOLAOCTETSWCSCHUMVTQGIRUMVFAUAKOLIHMWCNFMMDOBHIV | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0019905 | 01893 0383 2860 3779 0945 03769 04755 06030 1664 01324 2918 5999 00395 05108 04766 06004 06348 6662 05691 01650 04430 04733 6368 0323 06063 03852 04765 02227 0369 04404 2529 02837 3801 03843 0988 02908 05052 02570 1606 05747 6684 06061 01668 06029 3854 2900 4439 1585 00333 5734 0362 03781 2256 1658 0649 05736 0383 0631... | 01893 0383 2860 3779 0945 03769 04755 06030 1664 01324 2918 5999 00395 05108 04766 06004 06348 6662 05691 01650 04430 04733 6368 0323 06063 03852 04765 02227 0369 04404 2529 02837 3801 03843 0988 02908 05052 02570 1606 05747 6684 06061 01668 06029 3854 2900 4439 1585 00333 5734 0362 03781 2256 1658 0649 05736 0383 0631... | FAIL CLOSED IS A POSTURE NOT A SLOGAN HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | zimmermann | zimmermann | null | {} | hard | en | 162 | 162 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
m94-v2-0049 | RZNHEGFWRZDPBFUVHXXHIKNVVIXLGWFQTCVAEISYQMVNDQBDVXLWUOTOGIOECOKFVQTMAD | RZNHEGFWRZDPBFUVHXXHIKNVVIXLGWFQTCVAEISYQMVNDQBDVXLWUOTOGIOECOKFVQTMAD | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0324 | ZBBATFXMXVKHFVQMIVFATPRGTNQEFXAVIANATFTCZEAHNGHGHTEKKNQUVQAJZELWORIVU | ZBBATFXMXVKHFVQMIVFATPRGTNQEFXAVIANATFTCZEAHNGHGHTEKKNQUVQAJZELWORIVU | IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1806 | RFC AMSPQC MD RPSC JMTC LCTCP BGB PSL QKMMRF RFPMSEF YECQ | RFC AMSPQC MD RPSC JMTC LCTCP BGB PSL QKMMRF RFPMSEF YECQ | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | caesar | caesar | substitution | {
"type": "shift",
"value": 24
} | beginner | en | 47 | 57 | cipher_museum | 2.0 | public | null | null |
cda-0002565 | ZHZN CRKJNF TKSAB BNJFDZ OJCX LKJTI ZNU CXB TSDTB DZLXJNB CXB SNB CJDB YZU JI CXBSKBCJLZHHM RNTKBZAZTHB JW RIBU LSKKBLCHM CXB TBIC HBIISNI IXSO OXBKB CXB DBCXSU WZJHI | ZHZN CRKJNF TKSAB BNJFDZ OJCX LKJTI ZNU CXB TSDTB DZLXJNB CXB SNB CJDB YZU JI CXBSKBCJLZHHM RNTKBZAZTHB JW RIBU LSKKBLCHM CXB TBIC HBIISNI IXSO OXBKB CXB DBCXSU WZJHI | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE BEST LESSONS SHOW WHERE THE METHOD FAILS | monoalphabetic | monoalphabetic | null | {
"alphabet": "ZTLUBWFXJQAHDNSYGKICRVOEMP"
} | hard | en | 139 | 139 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
venona-pad-reuse-010 | ELGFLVGCMP76BOA7ZG3PU | ELGFLVGCMP76BOA7ZG3PU | THE PACKAGE IS DELIVERED | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "XMCKL"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0008489 | UUZAELR NGBQQ VAYF RCECU XGFFIRPCURPPUC RARBPULPBKFV YRQDEEK QAJCYCEK KWSOCPCWWBU LV C BBCZCABKQMEG DLWFRGTV YMQMGTPYB ZQU IEPYQN NCUQ MQUZLQJWHC ZCIPMUGALPUQW SKEBYNR DOTRLEWOO IEJLFDA XAJXVAZ BOBMQMZZPUQW | UUZAELR NGBQQ VAYF RCECU XGFFIRPCURPPUC RARBPULPBKFV YRQDEEK QAJCYCEK KWSOCPCWWBU LV C BBCZCABKQMEG DLWFRGTV YMQMGTPYB ZQU IEPYQN NCUQ MQUZLQJWHC ZCIPMUGALPUQW SKEBYNR DOTRLEWOO IEJLFDA XAJXVAZ BOBMQMZZPUQW | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | beaufort | beaufort | null | {
"key": "JUSTICE"
} | hard | en | 183 | 183 | synthetic_educational | null | null | [] | |
cda-0017989 | 20.44.11 16.18.4 20.14.2 2.50.6 5.42.10 1.35.2 20.9.10 5.1.14 7.29.3 9.22.5 6.28.4 20.36.6 11.46.10 6.19.10 2.27.7 1.32.11 11.25.9 3.42.5 20.46.9 4.45.8 11.1.5 19.20.11 12.19.10 7.35.11 18.6.9 5.12.12 16.6.11 16.48.3 7.6.8 9.29.10 2.4.4 16.15.11 20.18.4 1.37.14 19.7.2 11.46.3 13.20.7 5.32.8 15.16.2 1.41.2 5.48.3 19.6.7... | 20.44.11 16.18.4 20.14.2 2.50.6 5.42.10 1.35.2 20.9.10 5.1.14 7.29.3 9.22.5 6.28.4 20.36.6 11.46.10 6.19.10 2.27.7 1.32.11 11.25.9 3.42.5 20.46.9 4.45.8 11.1.5 19.20.11 12.19.10 7.35.11 18.6.9 5.12.12 16.6.11 16.48.3 7.6.8 9.29.10 2.4.4 16.15.11 20.18.4 1.37.14 19.7.2 11.46.3 13.20.7 5.32.8 15.16.2 1.41.2 5.48.3 19.6.7... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER | 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. |
cda-0008501 | NGONFU RAPBQRF OL ERIREFVAT GUR NYCUNORG PELCGBTENCUL ERJNEQF CNGVRAPR NAQ PNERSHY GUVAXVAT | NGONFU RAPBQRF OL ERIREFVAT GUR NYCUNORG PELCGBTENCUL ERJNEQF CNGVRAPR NAQ PNERSHY GUVAXVAT | ATBASH ENCODES BY REVERSING THE ALPHABET CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 80 | 80 | synthetic_educational | null | null | [] | |
fractionated-morse-v2-0241 | GLPBUTVAMEVAVHBMFUTPAPSBBPRHRHBUBATWLHMEWMAQVAMUEPRRGAFQLADQRTAAOURHRHOAMMEXFAPMABUDPBQXARJPHSKAHRGALKSFPASDVAVQRGLMBRDUTABFUTQXADVKSMQVHGUDVRGMALOQQRSHDQPQATWLHGAPBKOBPRAWQHRTUJPHELLIQV | GLPBUTVAMEVAVHBMFUTPAPSBBPRHRHBUBATWLHMEWMAQVAMUEPRRGAFQLADQRTAAOURHRHOAMMEXFAPMABUDPBQXARJPHSKAHRGALKSFPASDVAVQRGLMBRDUTABFUTQXADVKSMQVHGUDVRGMALOQQRSHDQPQATWLHGAPBKOBPRAWQHRTUJPHELLIQV | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 186 | 186 | cipher_museum | 2.0 | public | null | null |
cda-0022077 | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH GSV PZHRHPR VCZNRMZGRLM URMWH IVKVZGVW GIRTIZNH RM XRKSVIGVCG WL MLG XLMUFHV LYUFHXZGRLM DRGS VMXIBKGRLM LKVM HLFIXV GLLOH ZOOLD RMWVKVMWVMG EVIRURXZGRLM GLNLIILD | KLOBZOKSZYVGRX XRKSVIH FHV NFOGRKOV ZOKSZYVG HSRUGH GSV PZHRHPR VCZNRMZGRLM URMWH IVKVZGVW GIRTIZNH RM XRKSVIGVCG WL MLG XLMUFHV LYUFHXZGRLM DRGS VMXIBKGRLM LKVM HLFIXV GLLOH ZOOLD RMWVKVMWVMG EVIRURXZGRLM GLNLIILD | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION TOMORROW | atbash | atbash | null | {} | hard | en | 188 | 188 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
vernam-027 | QTGDCQEWKPQV | QTGDCQEWKPQV | THE TRAP IS SET | vernam | vernam | stream | {
"type": "pad",
"value": "XMCKLQPOS (repeating)"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0021003 | 20.32.13 7.19.2 8.14.1 17.29.11 16.50.3 1.17.15 17.23.11 13.50.5 5.49.3 5.3.1 18.46.3 3.39.14 17.34.10 10.45.10 14.21.6 19.27.10 15.27.3 5.21.13 7.35.9 2.4.14 13.44.3 7.33.6 20.14.6 10.33.1 19.41.2 13.7.4 12.39.7 3.33.13 9.5.6 5.21.1 12.15.12 10.49.7 8.36.10 18.29.4 18.10.13 2.30.2 6.41.6 10.20.1 14.16.10 8.25.11 10.47... | 20.32.13 7.19.2 8.14.1 17.29.11 16.50.3 1.17.15 17.23.11 13.50.5 5.49.3 5.3.1 18.46.3 3.39.14 17.34.10 10.45.10 14.21.6 19.27.10 15.27.3 5.21.13 7.35.9 2.4.14 13.44.3 7.33.6 20.14.6 10.33.1 19.41.2 13.7.4 12.39.7 3.33.13 9.5.6 5.21.1 12.15.12 10.49.7 8.36.10 18.29.4 18.10.13 2.30.2 6.41.6 10.20.1 14.16.10 8.25.11 10.47... | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | book_cipher | book_cipher | null | {} | hard | en | 178 | 178 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
enigma-v2-0904 | AHLRYLNEEZTAAMIS | AHLRYLNEEZTAAMIS | DIVIDE AND CONQUER | enigma | enigma | machine | {
"type": "rotor_start",
"value": "VWX"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-223 | FALUKCKMLSFKJSTLGDGBHGJZVKALPLZXBRUTRERKALVZDZV | FALUKCKMLSFKJSTLGDGBHGJZVKALPLZXBRUTRERKALVZDZV | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
caesar-es-040 | ZG LPZ IJ GGJMV IJ HVHV | ZG LPZ IJ GGJMV IJ HVHV | EL QUE NO LLORA NO MAMA | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | es | 18 | 23 | cipher_museum | 0.2 | public | null | null |
affine-v3-0964 | QHWK MTOB KTAA NHV ZBB KIB RITKBZ | QHWK MTOB KTAA NHV ZBB KIB RITKBZ | DONT FIRE TILL YOU SEE THE WHITES | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 27 | 33 | cipher_museum | 2.0 | public | null | null |
copiale-015 | D1 M9 S5 W7 W4 O0 S9 Y3 Y4 F9 S6 R2 W3 V9 H1 | D1 M9 S5 W7 W4 O0 S9 Y3 Y4 F9 S6 R2 W3 V9 H1 | OPERATION BEGINS | copiale | copiale | substitution | {
"type": "keyword",
"value": "COPIALE"
} | advanced | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
autokey-v3-0225 | EPFOZGEWLQKVQYIIMLGB | EPFOZGEWLQKVQYIIMLGB | THE KING DEMANDS FEALTY | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0112 | DVDVXVFGDFFVFFGDADDVFFGFFFGVVAVVGGGVXVVFDVVVXVVDDDAAGDAAAFAGFFGFAFGFFGAFADGFGFAAGADAGDGFAGGFAAAADAADAVFXXAAGVAGVVVXDDGVAVFXVFVGDGVFADDVVFDFXDDAGFAFGVVXDAFFGGFAAFAAAAGGAAGAGAGFDFDAGGGFADGFAFFFGFDFVAGAAFAAAADADDADDADAAAAGGGFAAAGDFFGFGAFGAAAAAAGAGAFAAGFAGFDDVDAAVVGGGDVDDVFADDVVAFXXADDVFDVVVVDVADDVDVVVXDV | DVDVXVFGDFFVFFGDADDVFFGFFFGVVAVVGGGVXVVFDVVVXVVDDDAAGDAAAFAGFFGFAFGFFGAFADGFGFAAGADAGDGFAGGFAAAADAADAVFXXAAGVAGVVVXDDGVAVFXVFVGDGVFADDVVFDFXDDAGFAFGVVXDAFFGGFAAFAAAAGGAAGAGAGFDFDAGGGFADGFAFFFGFDFVAGAAFAAAADADDADDADAAAAGGGFAAAGDFFGFGAFGAAAAAAGAGAFAAGFAGFDDVDAAVVGGGDVDDVFADDVVAFXXADDVFDVVVVDVADDVDVVVXDV | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 302 | 302 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0225 | GMGMQDSYOSMAOMRFRCTOSRESHATBLSKMGMVHGRSDFNFTRTFRXISKGFMOOROHBFFSQBPSNTOFRFNFBFAXMGRRSWUVWOQKLCXWULQDLGALCYDAIOQWZPVWNWXMDYAMDXFHTDAKALXISNDLBTDUSARVDDHOGOXIYBWBWXWYHNVLZ | GMGMQDSYOSMAOMRFRCTOSRESHATBLSKMGMVHGRSDFNFTRTFRXISKGFMOOROHBFFSQBPSNTOFRFNFBFAXMGRRSWUVWOQKLCXWULQDLGALCYDAIOQWZPVWNWXMDYAMDXFHTDAKALXISNDLBTDUSARVDDHOGOXIYBWBWXWYHNVLZ | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0493 | PSQTPRRTZCRECV | PSQTPRRTZCRECV | TRUST BUT VERIFY | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
voynich-render-v2-0085 | sqdmzdryu orofuxkx dbnfikgx gcd soyg gcog ydqgokr fdggdqx onndoq soq liqd isgdr kr drhfkxc gdbg | sqdmzdryu orofuxkx dbnfikgx gcd soyg gcog ydqgokr fdggdqx onndoq soq liqd isgdr kr drhfkxc gdbg | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 81 | 95 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0148 | IJTFZEHMZWZFFELTA | IJTFZEHMZWZFFELTA | THE RAILWAY ARRIVES | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "AXUM"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0015589 | 63 22 48 34 3 33 79 59 48 86 2 99 52 34 48 63 34 76 64 14 35 93 67 93 39 59 68 92 4 82 25 91 48 58 93 81 58 23 43 22 82 3 21 94 63 45 30 92 67 93 14 11 48 15 87 26 52 48 62 39 22 91 91 22 3 43 82 43 63 1 59 58 50 26 46 15 14 40 67 48 58 11 46 58 76 4 72 15 33 60 72 61 66 79 23 | 63 22 48 34 3 33 79 59 48 86 2 99 52 34 48 63 34 76 64 14 35 93 67 93 39 59 68 92 4 82 25 91 48 58 93 81 58 23 43 22 82 3 21 94 63 45 30 92 67 93 14 11 48 15 87 26 52 48 62 39 22 91 91 22 3 43 82 43 63 1 59 58 50 26 46 15 14 40 67 48 58 11 46 58 76 4 72 15 33 60 72 61 66 79 23 | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | homophonic | homophonic | null | {} | hard | en | 95 | 95 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
fractionated-morse-062 | IAFUAOWOBHU | IAFUAOWOBHU | FLEE AT ONCE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 11 | 11 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-1657 | ECHKAIXJOMSEKROOXV | ECHKAIXJOMSEKROOXV | CONTACT HAS BEEN MADE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "COURAGE"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0017 | QHRCYIPGRFTIGOARTDQX | QHRCYIPGRFTIGOARTDQX | THE KING DEMANDS FEALTY | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
bazeries-352 | JCBPISASJCCJAJFUPOSBKUYNJFPYSBKUYNFUUOPCABYKJFXYGQKGAXFNST | JCBPISASJCCJAJFUPOSBKUYNJFPYSBKUYNFUUOPCABYKJFXYGQKGAXFNST | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 56
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
affine-v3-0802 | DY APRY YRNMZI CI KYA SYAXD NCJM RNMG DY APRY KYA RNWI WI RNM EYXDMP ZAXM YV CXX ZMXWEWYPI | DY APRY YRNMZI CI KYA SYAXD NCJM RNMG DY APRY KYA RNWI WI RNM EYXDMP ZAXM YV CXX ZMXWEWYPI | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 72 | 90 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0139 | 56 27 66 26 50 56 58 72 40 38 56 66 86 86 45 30 | 56 27 66 26 50 56 58 72 40 38 56 66 86 86 45 30 | DIVIDE AND CONQUER | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 32 | 47 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0090 | VHCMDCVHQGKISYNJGNLFYMPULPUNDYVCZPXVZPSPYRJERLXLFLBUPJCIALSYXHXVEDVHVPGCESXLAX | VHCMDCVHQGKISYNJGNLFYMPULPUNDYVCZPXVZPSPYRJERLXLFLBUPJCIALSYXHXVEDVHVPGCESXLAX | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
typex-v2-0431 | TEVNDHNATJDADZZIWKLKBQGEZKUDUBVAHUKWRNWTNRFBONHPOEENARCPADUMKDZHZQWYAXMDZSE | TEVNDHNATJDADZZIWKLKBQGEZKUDUBVAHUKWRNWTNRFBONHPOEENARCPADUMKDZHZQWYAXMDZSE | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0064 | DCELLTVZCFBRSCJMGIBTHMBSLBNQHQGQKYEUJMAWHIRVDOCHDTUYPJVEGDSSYCKHMFWVRVKOEKD | DCELLTVZCFBRSCJMGIBTHMBSLBNQHQGQKYEUJMAWHIRVDOCHDTUYPJVEGDSSYCKHMFWVRVKOEKD | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
cda-0009552 | TIG LRIKE WO MZUAQXTVFVY DO X SREGWO GQAL | TIG LRIKE WO MZUAQXTVFVY DO X SREGWO GQAL | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | trithemius | trithemius | null | {} | medium | en | 34 | 34 | synthetic_educational | null | null | [] | |
four-square-163 | DLPDETEFDLLCICVGQQGEYIQGCHRRGEYIQGVGOXFRBCLNCHSDNMLHBSNGTE | DLPDETEFDLLCICVGQQGEYIQGCHRRGEYIQGVGOXFRBCLNCHSDNMLHBSNGTE | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | four_square | four_square | polygraphic | {
"key1": "SECRET",
"key2": "AGENTS"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v2-0078 | CA6AJQCIYSKJAOZIRMBNFFHXIEJOCW4A5AKXHNNSKCCAATMGBMHEPGLSMOTAOOHBCVMMPNRE4DLWP | CA6AJQCIYSKJAOZIRMBNFFHXIEJOCW4A5AKXHNNSKCCAATMGBMHEPGLSMOTAOOHBCVMMPNRE4DLWP | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0165 | CJEKMXAIRGTIQDDORFZTIDJS | CJEKMXAIRGTIQDDORFZTIDJS | TORPEDO AWAY ALL HANDS BRACE | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0048 | KITTUMQAPUIMTAWUMGMIZAIOWVMDMZUQVLPWETWVOXZMKQAMTGQBPWCOPBQEWCTLAIQTIJWCBIVLAMMBPMWKMIV | KITTUMQAPUIMTAWUMGMIZAIOWVMDMZUQVLPWETWVOXZMKQAMTGQBPWCOPBQEWCTLAIQTIJWCBIVLAMMBPMWKMIV | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0360 | TPEMOLEBURIEDDEEPINTHEINTELLIGUNCEAGENCYPASSEDVITALSECZETSTOTHEOTHERSIDEFORYEARS | TPEMOLEBURIEDDEEPINTHEINTELLIGUNCEAGENCYPASSEDVITALSECZETSTOTHEOTHERSIDEFORYEARS | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
playfair-es-007 | HCFLDWFKBASENONKUGLHCPODESNXLQVR | HCFLDWFKBASENONKUGLHCPODESNXLQVR | LA LIBERTAD NO SE MENDIGA SE CONQUISTA | playfair | playfair | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | es | 32 | 32 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v3-0172 | WIL UBLLM CK EHJIW HU WIL SEWHDXWL UBLLM EHDHW HQ WIL SQHZLYUL LHQUWLHQ MLDCQUWYXWLM WIHU | WIL UBLLM CK EHJIW HU WIL SEWHDXWL UBLLM EHDHW HQ WIL SQHZLYUL LHQUWLHQ MLDCQUWYXWLM WIHU | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
cda-0020729 | 3.1.1 11.2.10 7.2.5 19.1.9 1.4.6 12.4.6 9.5.10 8.5.6 18.4.9 13.5.8 2.1.10 20.2.9 6.6.10 9.3.1 19.4.6 13.4.7 9.4.5 8.3.3 8.3.2 7.4.5 17.1.1 2.1.6 3.1.3 14.2.2 17.1.4 20.3.3 6.2.3 13.4.6 15.6.9 9.5.8 16.1.8 5.4.6 5.3.1 2.1.3 2.2.3 19.4.4 1.6.10 9.4.6 1.5.3 11.2.3 18.5.10 16.4.6 7.6.3 5.1.5 12.6.10 17.3.9 18.2.1 12.6.6 7.... | 3.1.1 11.2.10 7.2.5 19.1.9 1.4.6 12.4.6 9.5.10 8.5.6 18.4.9 13.5.8 2.1.10 20.2.9 6.6.10 9.3.1 19.4.6 13.4.7 9.4.5 8.3.3 8.3.2 7.4.5 17.1.1 2.1.6 3.1.3 14.2.2 17.1.4 20.3.3 6.2.3 13.4.6 15.6.9 9.5.8 16.1.8 5.4.6 5.3.1 2.1.3 2.2.3 19.4.4 1.6.10 9.4.6 1.5.3 11.2.3 18.5.10 16.4.6 7.6.3 5.1.5 12.6.10 17.3.9 18.2.1 12.6.6 7.... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | arnold_andre | arnold_andre | null | {} | hard | en | 93 | 93 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
double-transposition-v3-0220 | DTELSVUU | DTELSVUU | DEUS VULT | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0349 | PUKWQLQHMYLFEKTCMVJXCZGGDZPDL+LDMFOFFHZTKCTHYLIMMWDEHJDRYHGCLPRKYACCCAFUHGCWEHQTD+UA | PUKWQLQHMYLFEKTCMVJXCZGGDZPDL+LDMFOFFHZTKCTHYLIMMWDEHJDRYHGCLPRKYACCCAFUHGCWEHQTD+UA | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
cda-0005991 | TIG GIYKJBRFP EGISYVK IUOPBPMS CGISWK TITSYS PZPYDK DYMYHFNFGU SVNTJQYVP ENMH JYW LSNPBK LUTV EI XKJCAO PHRB XV VFXGT GKMVS BNJSWOAPV BZGGS RYGZXLN NBYC A HTLH NT H XAODOEWQUU YXIHAQPHC QCWXJXU KUKDEVQPB TAIBZNP RDADJ ZLD SVLNBY ERQJHZLR GVPQCQS | TIG GIYKJBRFP EGISYVK IUOPBPMS CGISWK TITSYS PZPYDK DYMYHFNFGU SVNTJQYVP ENMH JYW LSNPBK LUTV EI XKJCAO PHRB XV VFXGT GKMVS BNJSWOAPV BZGGS RYGZXLN NBYC A HTLH NT H XAODOEWQUU YXIHAQPHC QCWXJXU KUKDEVQPB TAIBZNP RDADJ ZLD SVLNBY ERQJHZLR GVPQCQS | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | trithemius | trithemius | null | {} | hard | en | 209 | 209 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
geez-monastic-035 | HSIPMOCTVEMPNHKOEOCTBCZKHDPNPKOCMTTHKOEEST | HSIPMOCTVEMPNHKOEOCTBCZKHDPNPKOCMTTHKOEEST | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "GEEZ"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
trifid-084 | TXJBRKGZLV | TXJBRKGZLV | TRUST NO ONE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
cda-0017481 | .. ... .. .... .... ... .... .... ... .... .... .. .. .... . ... . . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ... . . .... .. . ..... .... .... . ..... . . . ... .. ... . ..... .... .. .... ... ... ... ... .... .... .... ... ..... .... .. ... .... .... .... . ..... .... | .. ... .. .... .... ... .... .... ... .... .... .. .. .... . ... . . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ... . . .... .. . ..... .... .... . ..... . . . ... .. ... . ..... .... .. .... ... ... ... ... .... .... .... ... ..... .... .. ... .... .... .... . ..... .... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | tap_code | tap_code | null | {} | medium | en | 41 | 41 | 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. |
double-transposition-v2-0491 | UXEAENURETTECEOAAHONEUNHETEYELTATTALHASETGRRBERENAOAMIENTWMNERHILATDEHROPNGRCGITPYLBAEREEBBRRLIUEEOFOSSHIHCINTATSALNREHDNEOUGTFSDAEFIESELCPREPWHEYLLRCAWOMCRRYUHSATTMESNG | UXEAENURETTECEOAAHONEUNHETEYELTATTALHASETGRRBERENAOAMIENTWMNERHILATDEHROPNGRCGITPYLBAEREEBBRRLIUEEOFOSSHIHCINTATSALNREHDNEOUGTFSDAEFIESELCPREPWHEYLLRCAWOMCRRYUHSATTMESNG | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | double_transposition | double_transposition | transposition | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0478 | UWCVTFXWZDZHFSHIMKZGUIWFNYGYFIQBICCFPUPJGCMNDHIUMTKUQHMKDDFZHRGJQQCHL | UWCVTFXWZDZHFSHIMKZGUIWFNYGYFIQBICCFPUPJGCMNDHIUMTKUQHMKDDFZHRGJQQCHL | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0022151 | GDLH JFZI VXRK SVIV MXIB KGHW RTIZ KSHD RGSG DLKL OBYR FHZO KSZY VGH | GDLH JFZI VXRK SVIV MXIB KGHW RTIZ KSHD RGSG DLKL OBYR FHZO KSZY VGH | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | atbash | atbash | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0010070 | CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA FRPHEVGL PYNVZF FUBHYQ OR GRFGRQ HAQRE FPEHGVAL UVFGBEVPNY PVCUREF NER GRNPUREF ABG CEBGRPGVBA | CNGGREA JBEQF URYC OERNX ZBABNYCUNORGVP FHOFGVGHGVBA FRPHEVGL PYNVZF FUBHYQ OR GRFGRQ HAQRE FPEHGVAL UVFGBEVPNY PVCUREF NER GRNPUREF ABG CEBGRPGVBA | PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 129 | 129 | synthetic_educational | null | null | [] | |
cda-0015705 | 12.37.2 4.39.13 12.43.14 4.6.14 7.25.14 15.18.3 9.29.11 11.14.12 13.14.10 6.47.10 5.33.15 2.32.10 15.35.2 3.23.3 9.15.11 15.20.2 17.29.2 17.20.2 12.16.8 3.33.2 1.5.15 14.39.7 19.50.6 9.40.9 18.46.3 10.42.15 20.41.14 5.2.5 5.4.10 7.18.6 4.25.13 17.30.1 13.12.7 4.42.7 15.9.14 15.15.9 11.40.9 20.33.10 15.45.8 17.7.13 14.4... | 12.37.2 4.39.13 12.43.14 4.6.14 7.25.14 15.18.3 9.29.11 11.14.12 13.14.10 6.47.10 5.33.15 2.32.10 15.35.2 3.23.3 9.15.11 15.20.2 17.29.2 17.20.2 12.16.8 3.33.2 1.5.15 14.39.7 19.50.6 9.40.9 18.46.3 10.42.15 20.41.14 5.2.5 5.4.10 7.18.6 4.25.13 17.30.1 13.12.7 4.42.7 15.9.14 15.15.9 11.40.9 20.33.10 15.45.8 17.7.13 14.4... | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE MESSAGE WAS HIDDEN BUT NOT SECURE | book_cipher | book_cipher | null | {} | medium | en | 68 | 68 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
chaocipher-v3-0342 | NQBNHHYXOAEJNSINTUTFJBIDVCXQM | NQBNHHYXOAEJNSINTUTFJBIDVCXQM | TAXATION WITHOUT REPRESENTATION | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0293 | 65 46 90 33 36 66 73 46 27 79 33 24 68 74 24 36 77 35 45 48 57 35 46 90 34 55 56 84 45 59 67 34 54 66 65 26 48 67 22 56 67 43 35 46 86 34 55 56 45 55 48 79 23 56 39 74 44 59 68 53 44 38 74 24 36 77 44 26 57 73 44 59 | 65 46 90 33 36 66 73 46 27 79 33 24 68 74 24 36 77 35 45 48 57 35 46 90 34 55 56 84 45 59 67 34 54 66 65 26 48 67 22 56 67 43 35 46 86 34 55 56 45 55 48 79 23 56 39 74 44 59 68 53 44 38 74 24 36 77 44 26 57 73 44 59 | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 144 | 215 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1232 | AP AXQTGIT VJXSPCI AT ETJEAT KTGH JC PKTCXG BTXAATJG TI EAJH YJHIT EDJG IDJH ATH WDBBTH AXQGTH | AP AXQTGIT VJXSPCI AT ETJEAT KTGH JC PKTCXG BTXAATJG TI EAJH YJHIT EDJG IDJH ATH WDBBTH AXQGTH | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | caesar | caesar | substitution | {
"type": "shift",
"value": 15
} | beginner | en | 78 | 94 | cipher_museum | 2.0 | public | null | null |
cda-0017590 | DRIVE OTHER NORTH OTHER TRACK CROSS OPENS NAVAL FIELD UNDER SCOUT EXTRA OTHER BATCH FINAL UNDER STAGE COULD AGAIN TAKES INPUT ORDER NOTES WIDTH INNER | DRIVE OTHER NORTH OTHER TRACK CROSS OPENS NAVAL FIELD UNDER SCOUT EXTRA OTHER BATCH FINAL UNDER STAGE COULD AGAIN TAKES INPUT ORDER NOTES WIDTH INNER | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | null_cipher | null_cipher | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"acrostic_detection",
"first_letter_extraction"
] | Null/steganographic cipher: hidden message formed by first letters of words. |
sigaba-v3-0104 | GXFBVNRTDLFDVWDLGXSZVOJETUJWMPBRBTENBMXAILZZRRLZTSNZSTMEMDULBNSIAXWJWXHUMQWGXVCZAFJGKLJQANZMGIFNBNLZITZIVZFVMRKTPQGNMUPOEOETRQSQVUNGKQTJEOKVRSKDOGCPJPXRDVSIPBWGRHAPXBUUZVZWZEIJC | GXFBVNRTDLFDVWDLGXSZVOJETUJWMPBRBTENBMXAILZZRRLZTSNZSTMEMDULBNSIAXWJWXHUMQWGXVCZAFJGKLJQANZMGIFNBNLZITZIVZFVMRKTPQGNMUPOEOETRQSQVUNGKQTJEOKVRSKDOGCPJPXRDVSIPBWGRHAPXBUUZVZWZEIJC | THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 177 | 177 | cipher_museum | 2.0 | public | null | null |
diana-v3-0168 | MLRYRAADPLJUNAOMLVEHEKYBCRONKCEZIJDFJMGEWWSNNOQIGBPRAEVXHEQGANFZIABRWLIBKJ | MLRYRAADPLJUNAOMLVEHEKYBCRONKCEZIJDFJMGEWWSNNOQIGBPRAEVXHEQGANFZIABRWLIBKJ | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0019634 | IQYFH CGJJJ NWEJX KSRHP AENBC ISROO WGWCN OYAWW IJZGX GNQNQ JBWLP NJITH A | IQYFH CGJJJ NWEJX KSRHP AENBC ISROO WGWCN OYAWW IJZGX GNQNQ JBWLP NJITH A | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS TODAY | vernam | vernam | null | {} | medium | en | 61 | 61 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
vigenere-vf-0092 | VFCKXFAKFXGUVYCGXWURQTTGQEYCWOVZKTMCGMCGRDWINDLSWEBTKHJVFTTJGEYQHJG | VFCKXFAKFXGUVYCGXWURQTTGQEYCWOVZKTMCGMCGRDWINDLSWEBTKHJVFTTJGEYQHJG | TO EVERY THING THERE IS A SEASON AND A TIME TO EVERY PURPOSE UNDER THE HEAVEN ABOVE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
cda-0013526 | 9.44.13 7.2.10 5.28.13 12.30.12 9.34.3 12.3.4 19.17.10 12.6.6 1.23.12 2.30.6 12.13.13 4.42.1 10.5.4 16.8.6 14.3.1 4.40.15 9.7.9 1.20.5 3.13.10 9.50.3 11.34.7 12.21.10 13.36.3 17.29.10 13.32.3 15.32.11 3.2.4 7.26.1 14.26.14 4.25.3 12.34.1 11.24.7 5.8.15 15.43.12 6.16.1 5.25.5 3.28.7 20.1.5 8.14.14 19.37.9 9.4.11 3.26.11... | 9.44.13 7.2.10 5.28.13 12.30.12 9.34.3 12.3.4 19.17.10 12.6.6 1.23.12 2.30.6 12.13.13 4.42.1 10.5.4 16.8.6 14.3.1 4.40.15 9.7.9 1.20.5 3.13.10 9.50.3 11.34.7 12.21.10 13.36.3 17.29.10 13.32.3 15.32.11 3.2.4 7.26.1 14.26.14 4.25.3 12.34.1 11.24.7 5.8.15 15.43.12 6.16.1 5.25.5 3.28.7 20.1.5 8.14.14 19.37.9 9.4.11 3.26.11... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | book_cipher | book_cipher | null | {} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
slidex-v2-0294 | MMRBEKTTWZGTELZIPZRZDQPWJZTLKRVXDZMMMMXLGZLFFJCO | MMRBEKTTWZGTELZIPZRZDQPWJZTLKRVXDZMMMMXLGZLFFJCO | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 48 | 48 | cipher_museum | 2.0 | public | null | null |
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