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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
lorenz-v3-0039 | THEEXPERIMENTCONFIRMS | THEEXPERIMENTCONFIRMS | THE EXPERIMENT CONFIRMS | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0003557 | TPV WDNVG OH FOWDFWNVDFV WL Y ALVHAQ FQAV TPV UQYBHYWI FWUPVI VDFIBUTL UYWIL OH QVTTVIL LWMAQTYDVOALQB | TPV WDNVG OH FOWDFWNVDFV WL Y ALVHAQ FQAV TPV UQYBHYWI FWUPVI VDFIBUTL UYWIL OH QVTTVIL LWMAQTYDVOALQB | THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | monoalphabetic | monoalphabetic | null | {
"alphabet": "YEFNVHZPWXRQMDOUJILTAKSGBC"
} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
caesar-138 | OHEA NSGRE ERNQVAT | OHEA NSGRE ERNQVAT | BURN AFTER READING | caesar | caesar | substitution | {
"type": "shift",
"value": 13
} | beginner | en | 16 | 18 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v3-0026 | OJDOLATDVLATDDVDPUCU | OJDOLATDVLATDDVDPUCU | TREASURE BURIED HERE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0012753 | .... .... .... .. . . ... ... .... ... ... ..... ... .... .... ... .. .... .... .... .. .... ... .... ... ... . ... .. .... ... ..... .. ... . ..... .... .. .... ... .... .. . ..... . . .... .. .... .. . . ... ... .. .. . ..... ... . . ..... .... .... .... .... . ..... .... .. .... ..... | .... .... .... .. . . ... ... .... ... ... ..... ... .... .... ... .. .... .... .... .. .... ... .... ... ... . ... .. .... ... ..... .. ... . ..... .... .. .... ... .... .. . ..... . . .... .. .... .. . . ... ... .. .. . ..... ... . . ..... .... .... .... .... . ..... .... .. .... ..... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | tap_code | tap_code | null | {} | hard | en | 148 | 148 | 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. |
cda-0007506 | HENAFCAGVGWBA QWCUSEF DSOEENAUS YRGGSDG JVGUBGH FHPFGWHHGWBA OHPNFU SNQBQSF PK FNISEFWBT GVR OZDUNPRG TFNDHRAQM OAOYLEWF POA ESJNNY JSOY QVCUSDG | HENAFCAGVGWBA QWCUSEF DSOEENAUS YRGGSDG JVGUBGH FHPFGWHHGWBA OHPNFU SNQBQSF PK FNISEFWBT GVR OZDUNPRG TFNDHRAQM OAOYLEWF POA ESJNNY JSOY QVCUSDG | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION ATBASH ENCODES BY REVERSING THE ALPHABET FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | porta | porta | null | {
"key": "LIBRARY"
} | hard | en | 127 | 127 | synthetic_educational | null | null | [] | |
affine-vh-0022 | GAF ZFSUDQG HZ QXG TSFDGFS GADQ AHZ CXSY | GAF ZFSUDQG HZ QXG TSFDGFS GADQ AHZ CXSY | THE SERVANT IS NOT GREATER THAN HIS LORD | affine | affine | substitution | {
"a": 7,
"b": 3
} | beginner | en | 33 | 40 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0338 | OCQKQLXXNOOQDKKYIZ | OCQKQLXXNOOQDKKYIZ | TREASURE BURIED HERE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "JKL"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0027 | TSUEPHEOXXICONXXTMPSXXTASRX | TSUEPHEOXXICONXXTMPSXXTASRX | THE COMPASS POINTS TRUE | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0465 | THEMBNHATTANPROJECTBROUGHTTOGETHERTHEGREATESTTCIENTIFICMINDSOFTHETWENTIETHCENTURYINARADETOBUILDTHEATOMICBOMBBEFORENAZIGERMANYCOVLDDOSOTHEEFFORTCHANGEDTHEWORLDFOREVER | THEMBNHATTANPROJECTBROUGHTTOGETHERTHEGREATESTTCIENTIFICMINDSOFTHETWENTIETHCENTURYINARADETOBUILDTHEATOMICBOMBBEFORENAZIGERMANYCOVLDDOSOTHEEFFORTCHANGEDTHEWORLDFOREVER | 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 | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
hill-v2-0363 | YHCQUHJDYKNEMMUVJXHDOORAUHNNACTQYHECDYPSJXGSKIFRPSFIQXTFCQWPHGFRXCFIJPAEYHBXTQWUVOXOTLTQXMRTJWTKAEBMWUEQIXIATQHIJCIQJGTTKQDMNNHRDSGKEAXPGDPDUULMTZLF | YHCQUHJDYKNEMMUVJXHDOORAUHNNACTQYHECDYPSJXGSKIFRPSFIQXTFCQWPHGFRXCFIJPAEYHBXTQWUVOXOTLTQXMRTJWTKAEBMWUEQIXIATQHIJCIQJGTTKQDMNNHRDSGKEAXPGDPDUULMTZLF | 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 | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
slidex-091 | OZIHCJKRLKZCSKKRDXBBLKFKNWXYPIHHKRHQNTNYQKRXAVKEHQOFAEJTIQ | OZIHCJKRLKZCSKKRDXBBLKFKNWXYPIHHKRHQNTNYQKRXAVKEHQOFAEJTIQ | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | slidex | slidex | transposition | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
caesar-it-016 | UHVLVWHUH UHVLVWHUH UHVLVWHUH | UHVLVWHUH UHVLVWHUH UHVLVWHUH | RESISTERE RESISTERE RESISTERE | caesar | caesar | substitution | {
"type": "shift",
"value": 3
} | beginner | it | 27 | 29 | cipher_museum | 0.2 | public | null | null |
venona-pad-reuse-v3-0079 | 5INNCP5IGTGPEINEPGLO2SKCHNYIPRBL6EQMCTPRAAATDOPECDLNCPXSDSMBLLPCRVBNDCAKDM7NKGPTDOPW | 5INNCP5IGTGPEINEPGLO2SKCHNYIPRBL6EQMCTPRAAATDOPECDLNCPXSDSMBLLPCRVBNDCAKDM7NKGPTDOPW | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0090 | IVLY+RKMSHBQ+D+XRGWJCACVKPDTEQDDACJCHPIERXCLQFSAJORPOHJGLWVJYMLMMBGPKECPPQAS | IVLY+RKMSHBQ+D+XRGWJCACVKPDTEQDDACJCHPIERXCLQFSAJORPOHJGLWVJYMLMMBGPKECPPQAS | MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0124 | 99999 90020 90011 90019 90017 90000 99998 99999 90008 90013 90019 90004 90011 90011 90008 90006 90004 90013 90002 90004 99998 99999 90003 90004 90017 90008 90021 90004 90003 99998 00020 99999 90003 90004 90002 90017 90024 90015 90019 90004 90003 99998 99999 90006 90004 90017 90012 90000 90013 99998 99999 90004 90013 90... | 99999 90020 90011 90019 90017 90000 99998 99999 90008 90013 90019 90004 90011 90011 90008 90006 90004 90013 90002 90004 99998 99999 90003 90004 90017 90008 90021 90004 90003 99998 00020 99999 90003 90004 90002 90017 90024 90015 90019 90004 90003 99998 99999 90006 90004 90017 90012 90000 90013 99998 99999 90004 90013 90... | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 955 | 1,145 | cipher_museum | 2.0 | public | null | null |
cda-0015577 | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 68 29 68 76 76 50 29... | 11 69 59 20 57 82 66 80 68 29 61 65 69 61 50 66 50 69 29 68 65 65 57 50 82 61 52 69 57 59 77 29 68 80 82 29 52 80 43 65 66 50 69 29 66 89 50 52 82 65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 68 29 68 76 76 50 29... | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | wallis_cipher | wallis_cipher | null | {} | hard | en | 148 | 148 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0006979 | TONRREWTINRSCSATISTXAIIRNTTUUXNTPEGEHBTXSIHAEROSIXPOERLSUTOX | TONRREWTINRSCSATISTXAIIRNTTUUXNTPEGEHBTXSIHAEROSIXPOERLSUTOX | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | scytale | scytale | null | {
"cols": 6
} | medium | en | 60 | 60 | synthetic_educational | null | null | [] | |
sigaba-v2-0080 | GXFQVEGIATEKPQPWHJRCSZFGPAFAQKRSDKUFBAXXRSXKQLPZFPGHZKOYVXLUTCOJMEHSNXPNMXNBMG | GXFQVEGIATEKPQPWHJRCSZFGPAFAQKRSDKUFBAXXRSXKQLPZFPGHZKOYVXLUTCOJMEHSNXPNMXNBMG | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0015999 | 22 58 3 76 58 21 76 3 3 23 21 68 59 76 81 2 81 62 64 22 25 33 21 25 66 76 70 1 34 48 46 32 15 64 2 4 33 81 60 27 96 60 72 50 48 87 32 34 22 43 41 50 60 33 40 43 35 34 92 63 68 76 57 34 82 63 17 41 34 48 78 27 34 62 43 63 82 68 49 23 15 21 23 2 70 62 87 82 58 33 61 14 39 60 88 59 70 80 66 15 24 63 22 48 58 34 33 79 49 2... | 22 58 3 76 58 21 76 3 3 23 21 68 59 76 81 2 81 62 64 22 25 33 21 25 66 76 70 1 34 48 46 32 15 64 2 4 33 81 60 27 96 60 72 50 48 87 32 34 22 43 41 50 60 33 40 43 35 34 92 63 68 76 57 34 82 63 17 41 34 48 78 27 34 62 43 63 82 68 49 23 15 21 23 2 70 62 87 82 58 33 61 14 39 60 88 59 70 80 66 15 24 63 22 48 58 34 33 79 49 2... | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | homophonic | homophonic | null | {} | hard | en | 186 | 186 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
adfgvx-v2-0348 | XAVAXAFGVGAVVGXGADGAADVVVDAFVDADAGAGADAAXDADXDDVAXDDGGDDFAFVFDDVDXDDGADDDDDGVDFGAAAFVAAADGXDDDFAXFDDXDAADFXDFFDAFADADAADFVDDDXAVAXDDADAFFAAAAAXFXAVDVVAAFFXDGDDAAFDA | XAVAXAFGVGAVVGXGADGAADVVVDAFVDADAGAGADAAXDADXDDVAXDDGGDDFAFVFDDVDXDDGADDDDDGVDFGAAAFVAAADGXDDDFAXFDDXDAADFXDFFDAFADADAADFVDDDXAVAXDDADAFFAAAAAXFXAVDVVAAFFXDGDDAAFDA | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0012819 | 832 812 853 808 830 822 844 816 815 856 999 845 851 826 839 806 824 846 834 812 999 855 800 874 855 999 857 821 813 999 855 872 856 857 812 836 999 836 861 855 859 999 803 814 999 856 813 806 860 851 812 999 812 863 814 841 999 824 815 999 814 839 812 837 872 999 832 839 844 866 854 999 801 834 818 843 851 826 857 822 ... | 832 812 853 808 830 822 844 816 815 856 999 845 851 826 839 806 824 846 834 812 999 855 800 874 855 999 857 821 813 999 855 872 856 857 812 836 999 836 861 855 859 999 803 814 999 856 813 806 860 851 812 999 812 863 814 841 999 824 815 999 814 839 812 837 872 999 832 839 844 866 854 999 801 834 818 843 851 826 857 822 ... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH SLOWLY | culper_ring | culper_ring | null | {} | hard | en | 134 | 134 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
trifid-235 | BYIQCMPLLLTUEHZFQILMQMOOLRQHTVFHTODMPLOBEYIODIMQOPHGEOBXVUSH | BYIQCMPLLLTUEHZFQILMQMOOLRQHTVFHTODMPLOBEYIODIMQOPHGEOBXVUSH | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | trifid | trifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0087 | BCDQFSOJLJKTVVFJMTFLMVTOTLIDPWTVVLASTLQSLFPWQQPUQNBQTVJIXPDWDTFOQDVSWFOQCSTJPDTFOQCSLLJG | BCDQFSOJLJKTVVFJMTFLMVTOTLIDPWTVVLASTLQSLFPWQQPUQNBQTVJIXPDWDTFOQDVSWFOQCSTJPDTFOQCSLLJG | ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
red-type-a-v3-0369 | GIYRHILENIILGXUAEJBHRYRZEGSAUNUKZYNUWWNEGVOFCUZIHPMTEYYJPDOWUNIVIOKYJOJ | GIYRHILENIILGXUAEJBHRYRZEGSAUNUKZYNUWWNEGVOFCUZIHPMTEYYJPDOWUNIVIOKYJOJ | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0232 | UYVONRFNONUMMPV | UYVONRFNONUMMPV | THE WIND IS WITH US | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0270 | LIENAFNTEEFIYOHHUERFBOISRIVLHETTIAOAESSBMGODRNRDTANEEERTTNKTONINEBNGATOFN | LIENAFNTEEFIYOHHUERFBOISRIVLHETTIAOAESSBMGODRNRDTANEEERTTNKTONINEBNGATOFN | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | double_transposition | double_transposition | transposition | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0004522 | GJBF DHNE RPVC URER APEL CGFQ VTEN CUFJ VGUG JBCB YLOV HFNY CUNO RGF | GJBF DHNE RPVC URER APEL CGFQ VTEN CUFJ VGUG JBCB YLOV HFNY CUNO RGF | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
beaufort-v3-0072 | UXHHASJQGGAAJGDAVGJNXEVZIEAHKSFTKYVFUWTZHJCQQOAIHQXPVGNLZETJVLEOSZWTI | UXHHASJQGGAAJGDAVGJNXEVZIEAHKSFTKYVFUWTZHJCQQOAIHQXPVGNLZETJVLEOSZWTI | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NELSON"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0161 | 90 54 81 91 90 82 85 41 91 90 67 63 91 90 15 55 79 53 45 91 | 90 54 81 91 90 82 85 41 91 90 67 63 91 90 15 55 79 53 45 91 | IN GOD WE TRUST | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 40 | 59 | cipher_museum | 2.0 | public | null | null |
hill-v3-0481 | WVVNFRIPIAVOXZVCTPLVVPCMNGMXYVECHGGINNNQAOREJKUHZPVCWVGYQKWPWEYGHDZAUUREBMIH | WVVNFRIPIAVOXZVCTPLVVPCMNGMXYVECHGGINNNQAOREJKUHZPVCWVGYQKWPWEYGHDZAUUREBMIH | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0012262 | 16.2.9 14.2.2 8.6.1 20.6.6 11.3.10 16.5.3 20.1.9 6.4.1 2.6.9 19.1.2 5.4.5 7.2.4 12.4.9 6.5.5 10.3.2 5.2.4 20.4.4 19.6.1 14.1.6 1.6.5 4.4.6 2.4.7 4.1.7 12.2.10 1.4.2 4.6.1 11.4.5 11.2.5 14.2.9 6.5.9 13.6.4 13.1.1 10.4.7 18.1.9 19.6.5 20.3.7 16.3.9 3.5.10 7.5.2 13.1.7 12.1.9 13.6.1 19.3.2 13.2.2 7.1.3 15.2.2 14.1.1 14.4.... | 16.2.9 14.2.2 8.6.1 20.6.6 11.3.10 16.5.3 20.1.9 6.4.1 2.6.9 19.1.2 5.4.5 7.2.4 12.4.9 6.5.5 10.3.2 5.2.4 20.4.4 19.6.1 14.1.6 1.6.5 4.4.6 2.4.7 4.1.7 12.2.10 1.4.2 4.6.1 11.4.5 11.2.5 14.2.9 6.5.9 13.6.4 13.1.1 10.4.7 18.1.9 19.6.5 20.3.7 16.3.9 3.5.10 7.5.2 13.1.7 12.1.9 13.6.1 19.3.2 13.2.2 7.1.3 15.2.2 14.1.1 14.4.... | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | arnold_andre | arnold_andre | null | {} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
cda-0017703 | otedy qokedy aiiin otaiin daiin dainy cheol qokal cheol sharal shal qotedy ytaiin daral shaiin sharal shor qokeedy ytaiin lkaiin ytaiin ytedy qotedy oxed okain ypchol okedy lkaiin ctaiin shal sheedy daral otain okedy shaiin ytedy okal rcheol qotedy qokal shal okshy | otedy qokedy aiiin otaiin daiin dainy cheol qokal cheol sharal shal qotedy ytaiin daral shaiin sharal shor qokeedy ytaiin lkaiin ytaiin ytedy qotedy oxed okain ypchol okedy lkaiin ctaiin shal sheedy daral otain okedy shaiin ytedy okal rcheol qotedy qokal shal okshy | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE BEST LESSONS SHOW WHERE THE METHOD FAILS | voynich_render | voynich_render | null | {} | hard | en | 224 | 224 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
fractionated-morse-v3-0039 | OPUFATJDJLNFFVJMVSJLCWSG | OPUFATJDJLNFFVJMVSJLCWSG | THE EXPERIMENT CONFIRMS | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
affine-v3-0281 | MQVLLVS JIV OEV TVVN YZI OEVD LEJQQ HWEVIHO OEV VJIOE JWS OEV CVJPVTJNVIL LEJQQ MV PJQQVS LZWL | MQVLLVS JIV OEV TVVN YZI OEVD LEJQQ HWEVIHO OEV VJIOE JWS OEV CVJPVTJNVIL LEJQQ MV PJQQVS LZWL | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | affine | affine | substitution | {
"a": 3,
"b": 9
} | beginner | en | 78 | 94 | cipher_museum | 2.0 | public | null | null |
beaufort-v3-0309 | SQTBNIHFZZPNWYHWKEEHRJFEQRAJNZQPDNTCQTBNIDBZJPKWPMMCUMYXLZVVJYRIXMXJPHMDZFHWWPZVAEHXAJZAMSHXKFEDJNMYGRRFDHDTADNSTDTEULAAVZEOZXHWTBNVLPSYDRLWPZUIEXSTZYRQSSIPHTGAYWKU | SQTBNIHFZZPNWYHWKEEHRJFEQRAJNZQPDNTCQTBNIDBZJPKWPMMCUMYXLZVVJYRIXMXJPHMDZFHWWPZVAEHXAJZAMSHXKFEDJNMYGRRFDHDTADNSTDTEULAAVZEOZXHWTBNVLPSYDRLWPZUIEXSTZYRQSSIPHTGAYWKU | 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 | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ADMIRAL"
} | intermediate | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
nomenclator-v3-0132 | 04 15 14 20 06 09 18 05 20 09 12 12 25 15 21 19 05 05 60 23 08 09 20 05 19 | 04 15 14 20 06 09 18 05 20 09 12 12 25 15 21 19 05 05 60 23 08 09 20 05 19 | DONT FIRE TILL YOU SEE THE WHITES | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 50 | 74 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0228 | QWSXIXYSWQUJITZECVBYFUEEDBZMQYDMAHJWHMFUGLWQYTNZWNSYNEIFRAFLHTQGRIVMVLAWTW | QWSXIXYSWQUJITZECVBYFUEEDBZMQYDMAHJWHMFUGLWQYTNZWNSYNEIFRAFLHTQGRIVMVLAWTW | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0310 | DOSKXCGQNORYZIHVDMMRRXBIBKFRHCLWAOLGHRWIKWXEDGLGRXXAIFOWKHJETPWYEKIL | DOSKXCGQNORYZIHVDMMRRXBIBKFRHCLWAOLGHRWIKWXEDGLGRXXAIFOWKHJETPWYEKIL | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0085 | 108 178 163 100 133 144 172 143 100 166 167 116 103 102 171 142 122 152 179 108 178 151 143 105 106 122 150 142 146 136 175 108 178 124 143 150 105 151 167 164 143 166 145 144 152 146 144 181 174 161 179 166 108 146 167 142 166 146 | 108 178 163 100 133 144 172 143 100 166 167 116 103 102 171 142 122 152 179 108 178 151 143 105 106 122 150 142 146 136 175 108 178 124 143 150 105 151 167 164 143 166 145 144 152 146 144 181 174 161 179 166 108 146 167 142 166 146 | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 174 | 231 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0189 | BMRCMDSMIMVADTEAWMRIDTELTEACLVAEFSMKIYSMKTELTWEMAVAROAIFAVASSELIIKMTPARFSE | BMRCMDSMIMVADTEAWMRIDTELTEACLVAEFSMKIYSMKTELTWEMAVAROAIFAVASSELIIKMTPARFSE | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
affine-v2-1242 | RTKI LJATFB KHRJOQ WHWB RTKI FIJOTKN MHO JAA RTKI MTOLWBZZ TW KIB OTXIK JZ XHQ XTGBZ VZ KH ZBB KIB OTXIK ABK VZ ZKOTGB HW KH MTWTZI KIB RHOP RB JOB TW KH UTWQ VS KIB WJKTHWZ RHVWQZ | RTKI LJATFB KHRJOQ WHWB RTKI FIJOTKN MHO JAA RTKI MTOLWBZZ TW KIB OTXIK JZ XHQ XTGBZ VZ KH ZBB KIB OTXIK ABK VZ ZKOTGB HW KH MTWTZI KIB RHOP RB JOB TW KH UTWQ VS KIB WJKTHWZ RHVWQZ | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 143 | 180 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0110 | RYAPOYPTNFJAGMBH | RYAPOYPTNFJAGMBH | THE GATES HOLD FIRM | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0167 | JVVBRSGMPRALDQRRBROBKTVHARTAMBRBRJVPHRFLVWLHKSHDVKDAQVHFAPABBPRBHTUSLPBPAQVRJQBAPVPSSFPWMC | JVVBRSGMPRALDQRRBROBKTVHARTAMBRBRJVPHRFLVWLHKSHDVKDAQVHFAPABBPRBHTUSLPBPAQVRJQBAPVPSSFPWMC | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 90 | 90 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0328 | F2PQOG7X6VKBKIGCKHH4ED4EXHN5F2P4MAEICWEONMTRMXG25WWAVN7PBAWBSAACZCDBAAJRJHOA2 | F2PQOG7X6VKBKIGCKHH4ED4EXHN5F2P4MAEICWEONMTRMXG25WWAVN7PBAWBSAACZCDBAAJRJHOA2 | ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
great-cipher-v3-0295 | 101 140 143 125 178 182 182 106 160 140 128 118 121 180 121 139 175 116 154 148 123 119 137 154 164 114 129 116 131 149 156 142 124 169 167 179 175 175 160 178 142 182 157 160 178 147 179 140 114 138 164 154 169 103 158 157 119 158 169 167 | 101 140 143 125 178 182 182 106 160 140 128 118 121 180 121 139 175 116 154 148 123 119 137 154 164 114 129 116 131 149 156 142 124 169 167 179 175 175 160 178 142 182 157 160 178 147 179 140 114 138 164 154 169 103 158 157 119 158 169 167 | THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 180 | 239 | cipher_museum | 2.0 | public | null | null |
stager-route-238 | WRFERWEDLGFRRHSEEREAYWERETNWESFAETTGLTOVHIAOTHEHRTNAEDOOOHHLNUSOODHLEILATRFTLDOIEDRTORTKOEETHRYROSYAHYFESRTLHTLHTTNXHDEDHENHDTAOOELEORDEEE | WRFERWEDLGFRRHSEEREAYWERETNWESFAETTGLTOVHIAOTHEHRTNAEDOOOHHLNUSOODHLEILATRFTLDOIEDRTORTKOEETHRYROSYAHYFESRTLHTLHTTNXHDEDHENHDTAOOELEORDEEE | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | stager_route | stager_route | transposition | {
"type": "integer",
"value": 6
} | expert | en | 138 | 138 | cipher_museum | 0.2 | public | null | null |
hill-v2-0077 | YIQJXEVQHKLVBHRRGSXSZDZITGDPBDXZOXTSBJQIUGQVUWOSPFTSYIQJXEXZKZMIVJCLMABXVQHKNJ | YIQJXEVQHKLVBHRRGSXSZDZITGDPBDXZOXTSBJQIUGQVUWOSPFTSYIQJXEXZKZMIVJCLMABXVQHKNJ | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0007088 | MCIU SERA RLDU PBIH LGRV SIXE SRCX IECE UREC PEOT LSDN DSET NXUR EINC EEFX ARST EWTL YCHS ITFC TSHR SARC AAMA YU | MCIU SERA RLDU PBIH LGRV SIXE SRCX IECE UREC PEOT LSDN DSET NXUR EINC EEFX ARST EWTL YCHS ITFC TSHR SARC AAMA YU | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | double_transposition | double_transposition | null | {
"key1": "CIPHER",
"key2": "SIGNAL"
} | hard | en | 90 | 90 | synthetic_educational | null | null | [] | |
nomenclator-v2-0188 | 60 12 15 18 04 09 19 13 25 19 08 05 16 08 05 18 04 09 19 08 01 12 12 14 15 20 23 01 14 20 08 05 13 01 11 05 20 08 13 05 12 09 05 04 15 23 14 64 07 18 05 05 14 16 01 19 20 21 18 05 19 02 25 19 20 09 12 12 23 01 20 05 18 19 | 60 12 15 18 04 09 19 13 25 19 08 05 16 08 05 18 04 09 19 08 01 12 12 14 15 20 23 01 14 20 08 05 13 01 11 05 20 08 13 05 12 09 05 04 15 23 14 64 07 18 05 05 14 16 01 19 20 21 18 05 19 02 25 19 20 09 12 12 23 01 20 05 18 19 | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 148 | 221 | cipher_museum | 2.0 | public | null | null |
cda-0003724 | CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF GUR ZRFFNTR JNF UVQQRA OHG ABG FRPHER SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA ZBQREA RAPELCGVBA VF ABG OEBXRA OL YRGGRE SERDHRAPL FYBJYL | CBYLNYCUNORGVP PVCUREF HFR ZHYGVCYR NYCUNORG FUVSGF GUR ZRFFNTR JNF UVQQRA OHG ABG FRPHER SNVY PYBFRQ VF N CBFGHER ABG N FYBTNA ZBQREA RAPELCGVBA VF ABG OEBXRA OL YRGGRE SERDHRAPL FYBJYL | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE MESSAGE WAS HIDDEN BUT NOT SECURE FAIL CLOSED IS A POSTURE NOT A SLOGAN MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY SLOWLY | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 157 | 157 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0015967 | MODEX NENCZ YPTIO NISNO TBROK ENBYL ETTER FREQX ENCYF RIEDM ANESX IMATX DKEYL ENGTZ FROMS TATIZ TICSC RYPTZ GRAPH YREWZ RDSPA TIENC EANDC AREFX LTHIN KINGD | MODEX NENCZ YPTIO NISNO TBROK ENBYL ETTER FREQX ENCYF RIEDM ANESX IMATX DKEYL ENGTZ FROMS TATIZ TICSC RYPTZ GRAPH YREWZ RDSPA TIENC EANDC AREFX LTHIN KINGD | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | commercial_code | commercial_code | null | {} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
adfgx-v2-0279 | FGFGFXDFGFXFAGGDFGFGFGDGDFAAFGXDDXAGDAAFFGADAAGFFADAXXAADGAADAGGFGDFGDFFADDGFAFAXGDAAFDDDADGXDDGAAADFAAADAGAFDFADFGFXDAD | FGFGFXDFGFXFAGGDFGFGFGDGDFAAFGXDDXAGDAAFFGADAAGFFADAXXAADGAADAGGFGDFGDFFADDGFAFAXGDAAFDDDADGXDDGAAADFAAADAGAFDFADFGFXDAD | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 120 | 120 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0193 | ZOKTGJUJFQATRIQZGGWRJCJEUQJCYBXWBIVVAJMBREPVIGZFYHEVTTMMIOVXYYKVBQGIABQWZFT | ZOKTGJUJFQATRIQZGGWRJCJEUQJCYBXWBIVVAJMBREPVIGZFYHEVTTMMIOVXYYKVBQGIABQWZFT | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0299 | EHCJORYDAUXZKRTURQZXIMKGYVNNGKXYZRHFXNQBKENDHKBUFPBVUXXEKILDJPLYKZ | EHCJORYDAUXZKRTURQZXIMKGYVNNGKXYZRHFXNQBKENDHKBUFPBVUXXEKILDJPLYKZ | WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 66 | 66 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0385 | ACNEEETTAMMESTSNHCKERSRPEEHAILINHTHSBRORSDAEEBTEEFRELHEEADHEKYLLLHDEAOSLATSALH | ACNEEETTAMMESTSNHCKERSRPEEHAILINHTHSBRORSDAEEBTEEFRELHEEADHEKYLLLHDEAOSLATSALH | BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS | double_transposition | double_transposition | transposition | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0014659 | ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w32⟩ ⟨w22⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨a11⟩ ⟨a19⟩ ⟨w10⟩ ⟨w38⟩ ⟨w20⟩ ⟨a07⟩ ⟨a11⟩ ⟨w40⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ | ⟨w04⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a19⟩ ⟨a07⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w32⟩ ⟨w22⟩ ⟨a07⟩ ⟨w10⟩ ⟨a25⟩ ⟨a11⟩ ⟨a19⟩ ⟨w10⟩ ⟨w38⟩ ⟨w20⟩ ⟨a07⟩ ⟨a11⟩ ⟨w40⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨a23⟩ ⟨a19⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w40⟩ | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | babington | babington | null | {} | medium | en | 44 | 44 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
scytale-017 | MEEOELTDAOTATKHX | MEEOELTDAOTATKHX | MEET AT THE OLD OAK | scytale | scytale | transposition | {
"type": "integer",
"value": 2
} | intermediate | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
cda-0014201 | 61 59 20 61 66 50 66 59 66 50 69 29 52 50 65 36 82 80 61 77 68 65 82 68 52 36 57 82 66 66 82 80 66 69 68 11 50 76 76 82 80 82 29 66 57 82 66 66 82 80 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66 69... | 61 59 20 61 66 50 66 59 66 50 69 29 52 50 65 36 82 80 61 77 68 65 82 68 52 36 57 82 66 66 82 80 66 69 68 11 50 76 76 82 80 82 29 66 57 82 66 66 82 80 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68 20 82 66 20 43 66 36 80 82 82 65 69 61 50 66 50 69 29 61 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66 69... | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS CAREFULLY | wallis_cipher | wallis_cipher | null | {} | hard | en | 137 | 137 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
hill-061 | FDFMKWFDJGBF | FDFMKWFDJGBF | ATTACK AT DAWN | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 7
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-138 | GBARVQPIMQBIBNCCIJ | GBARVQPIMQBIBNCCIJ | BURN AFTER READING | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
kryptos-176 | TNDWKCLFDZLHRDQMYRUGKJFEHFLITZEBLNAGQMEBZIXHJLCMBQLMNRZVFRLINGHXVHQZDFDVJNUYURAMLGXQUDUJECGYCRUXVFBFJEYVLNMHJDQMJGXRQZJMNNZIKCAFZGDQNQLQMRLDVWPMXQGDK | TNDWKCLFDZLHRDQMYRUGKJFEHFLITZEBLNAGQMEBZIXHJLCMBQLMNRZVFRLINGHXVHQZDFDVJNUYURAMLGXQUDUJECGYCRUXVFBFJEYVLNMHJDQMJGXRQZJMNNZIKCAFZGDQNQLQMRLDVWPMXQGDK | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "ABSCISSA"
} | advanced | en | 149 | 149 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0398 | OOVEYPKAQKWXLWDVQRODCR | OOVEYPKAQKWXLWDVQRODCR | EXTRACTION POINT CHANGED | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0139 | JKNBSSUREVUKAX | JKNBSSUREVUKAX | STAY THE COURSE | slidex | slidex | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0007532 | EYEHTMAHTHYPONOTAHIEOHOESVETDNRDSFEBHSSXIREATAEEESERYMASALRELTETXXIEBPDSCTTNNS | EYEHTMAHTHYPONOTAHIEOHOESVETDNRDSFEBHSSXIREATAEEESERYMASALRELTETXXIEBPDSCTTNNS | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | stager_route | stager_route | null | {
"cols": 6
} | medium | en | 78 | 78 | synthetic_educational | null | null | [] | |
cardano-autokey-061 | CTMTCMKTWDWJ | CTMTCMKTWDWJ | ATTACK AT DAWN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
voynich-render-053 | fdg tzxgkyd ad eird gcizhc gcd cdovdrx soff ore gcd xgoqx hi eoqp siqdvdq | fdg tzxgkyd ad eird gcizhc gcd cdovdrx soff ore gcd xgoqx hi eoqp siqdvdq | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 60 | 73 | cipher_museum | 0.2 | public | null | null |
bazeries-v2-0363 | TYVOSGOLNLTUQSGMCTONGJDNFTOLGOYIMYVOYOTOMNONOTDTGLYOSNCSRFTYOTYRGLTVNYRTLYVOTMGOXOYSGOLGFNPLIFYVNONYPMTMIYAHNSGONPKFVUXLIVINFGFTITGFFPGIFYHOYCEYRYOI | TYVOSGOLNLTUQSGMCTONGJDNFTOLGOYIMYVOYOTOMNONOTDTGLYOSNCSRFTYOTYRGLTVNYRTLYVOTMGOXOYSGOLGFNPLIFYVNONYPMTMIYAHNSGONPKFVUXLIVINFGFTITGFFPGIFYHOYCEYRYOI | 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 | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
affine-343 | NPW UCESI DJQGB LQV TCMFY QRWJ NPW XOZK HQA BWOJ NPW JERWJ | NPW UCESI DJQGB LQV TCMFY QRWJ NPW XOZK HQA BWOJ NPW JERWJ | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | affine | affine | substitution | {
"a": 15,
"b": 14
} | beginner | en | 47 | 58 | cipher_museum | 0.2 | public | null | null |
vigenere-529 | OWHIBVESOBUFRXYEOQYXUIHYZAZMBRNLZBNIEXZWIWHPRVZROPKQVRU | OWHIBVESOBUFRXYEOQYXUIHYZAZMBRNLZBNIEXZWIWHPRVZROPKQVRU | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "VIGENERE"
} | intermediate | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
trifid-vg-0079 | KEQRXIR+HT+FOLIUAODL++XBDOKADBTJEREOKDDLIEYWYSAGOQSI+AMFCOPQILFBWMNT | KEQRXIR+HT+FOLIUAODL++XBDOKADBTJEREOKDDLIEYWYSAGOQSI+AMFCOPQILFBWMNT | FOR ALL HAVE SINNED AND FALL SHORT OF THE GLORY OF GOD AND ARE JUSTIFIED BY HIS GRACE | trifid | trifid | fractionation | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0001 | THEORACLEHASSPOKEN | THEORACLEHASSPOKEN | THE ORACLE HAS SPOKEN | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
null-cipher-v2-0062 | and eioi iouv outi find some nsra mean old aeic who than outq utnu place number | and eioi iouv outi find some nsra mean old aeic who than outq utnu place number | DIVIDE AND CONQUER | null_cipher | null_cipher | steganography | {
"type": "position",
"value": "last"
} | advanced | en | 64 | 79 | cipher_museum | 2.0 | public | null | null |
beaufort-051 | VBDXXBFWWLQZZJKATVCAPVFRCNMGDGANPVWJEQURTJRPRRESGIBPDAEOXXGJ | VBDXXBFWWLQZZJKATVCAPVFRCNMGDGANPVWJEQURTJRPRRESGIBPDAEOXXGJ | KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "FORTIFICATION"
} | intermediate | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v2-0430 | YWFWJSDYJSFLZSKLSCWFNAUCKTMJYLZWYJWSLJANWJAKFGOGHWFXJGEALKKGMJUWLGLZWKWS | YWFWJSDYJSFLZSKLSCWFNAUCKTMJYLZWYJWSLJANWJAKFGOGHWFXJGEALKKGMJUWLGLZWKWS | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0397 | DADGDGGGADFXFDDFFXFAADXAGGAGFGXAXXFDDADX | DADGDGGGADFXFDDFFXFAADXAGGAGFGXAXXFDDADX | THE KING DEMANDS FEALTY | adfgx | adfgx | fractionation | {
"polybius": "WISDOM",
"columnar": "COURAGE"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0460 | AVAVFADFAVFADFAVGVAFAADVDFGGDVGDAGGFGFDADFVFDFDDVADFDFDDADVDXFFFDGFDDVGDAFDDAFAFADADDVDAAXGGGVADDFDADXADFDGXAFAAAFAGAAXAFAFGFAXAVDAFVAXAVAADFDXDGGVADDFAFGVAVGDAAG | AVAVFADFAVFADFAVGVAFAADVDFGGDVGDAGGFGFDADFVFDFDDVADFDFDDADVDXFFFDGFDDVGDAFDDAFAFADADDVDAAXGGGVADDFDADXADFDGXAFAAAFAGAAXAFAFGFAXAVDAFVAXAVAADFDXDGGVADDFAFGVAVGDAAG | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | adfgvx | adfgvx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 162 | 162 | cipher_museum | 2.0 | public | null | null |
cda-0004371 | GVSRN GRQGW INFGH RWSFC OGGSE AFPNT BENZO XWAUQ YOVZF VHZOA ESORO PYSBH GCHGF VBHYQ FVBJO YYESO FBAVA UFGNC FCBYL PVHFS AQBQR RNSGG REFOF COVEF BTAHZ PNEFT EBZBA SGBSV ISGVN VARSK BSPBV AQWRR AQSWF OHFNT HYQYH N | GVSRN GRQGW INFGH RWSFC OGGSE AFPNT BENZO XWAUQ YOVZF VHZOA ESORO PYSBH GCHGF VBHYQ FVBJO YYESO FBAVA UFGNC FCBYL PVHFS AQBQR RNSGG REFOF COVEF BTAHZ PNEFT EBZBA SGBSV ISGVN VARSK BSPBV AQWRR AQSWF OHFNT HYQYH N | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE INDEX OF COINCIDENCE IS A USEFUL CLUE | porta | porta | null | {
"key": "JUSTICE"
} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
confederate-vigenere-v2-0336 | NVLEPHLDMALBEWYWEFAHRUFAEGIKOIUWRAXKQKOEQLTQWGWJEMWPLCXFWRZEJMFAYOBFUEWMIGARZQPPHAP | NVLEPHLDMALBEWYWEFAHRUFAEGIKOIUWRAXKQKOEQLTQWGWJEMWPLCXFWRZEJMFAYOBFUEWMIGARZQPPHAP | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0008 | EMEESRXXNYTANTXXERRTOHXX | EMEESRXXNYTANTXXERRTOHXX | ENEMY RETREATS NORTH | scytale | scytale | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0133 | SFCKLIBFRASIFT | SFCKLIBFRASIFT | SIGNAL FIRES LIT | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0188 | JFQQMMASNMREAXGTTKWIBVNPEDYJFFNUDSOMWHOUJLBBMGTGERBCIWZWTHDLCMOJWAVKRXLJWX | JFQQMMASNMREAXGTTKWIBVNPEDYJFFNUDSOMWHOUJLBBMGTGERBCIWZWTHDLCMOJWAVKRXLJWX | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0020 | NNXQLXESXUFA | NNXQLXESXUFA | GOLD FROM LEAD | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0189 | 149 157 100 179 166 119 114 166 167 174 166 153 119 173 177 160 161 157 174 119 173 158 155 100 143 112 153 113 114 142 174 175 114 142 173 158 161 180 166 179 177 153 136 170 118 162 177 153 114 114 164 141 128 166 117 138 176 101 180 | 149 157 100 179 166 119 114 166 167 174 166 153 119 173 177 160 161 157 174 119 173 158 155 100 143 112 153 113 114 142 174 175 114 142 173 158 161 180 166 179 177 153 136 170 118 162 177 153 114 114 164 141 128 166 117 138 176 101 180 | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 177 | 235 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0393 | HUEIGESLSTEROENECYVCTRRLDTLEPIRHSYERPNENESTHFSMIITNCDEOEOEDHLAATEEIETBEEIGSATODA | HUEIGESLSTEROENECYVCTRRLDTLEPIRHSYERPNENESTHFSMIITNCDEOEOEDHLAATEEIETBEEIGSATODA | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0436 | FXJRVENESWYWRPZOQSMFOAGKNQWAVHJEOSZXMVVBAADMJKHANRUTZDGYSJFNAGPKHIYW | FXJRVENESWYWRPZOQSMFOAGKNQWAVHJEOSZXMVVBAADMJKHANRUTZDGYSJFNAGPKHIYW | NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0335 | SDAMPEIALNHERAPSYEQASAPKBHVECEHBKIABKTSDAWEHHSLTANAKTESBCBEKQSBHHNLAQBKTSDPABSQ | SDAMPEIALNHERAPSYEQASAPKBHVECEHBKIABKTSDAWEHHSLTANAKTESBCBEKQSBHHNLAQBKTSDPABSQ | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0223 | EQT FZTRT VTRZYF | EQT FZTRT VTRZYF | THE SIEGE BEGINS | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
affine-v2-0395 | MURWR KWOOCGW BUFFUIO | MURWR KWOOCGW BUFFUIO | CODED MESSAGE FOLLOWS | affine | affine | substitution | {
"a": 5,
"b": 2
} | beginner | en | 19 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0022181 | SRHGLIRXZO XRKSVIH ZIV GVZXSVIH MLG KILGVXGRLM XLOFNMZI GIZMHKLHRGRLM IVZWH XLOFNMH RM PVB LIWVI KFYORX RMUIZHGIFXGFIV WVHVIEVH XZIVUFO WVHRTM GSV WVGVXGREV HGFWRVH KZGGVIMH YVULIV NZPRMT XOZRNH | SRHGLIRXZO XRKSVIH ZIV GVZXSVIH MLG KILGVXGRLM XLOFNMZI GIZMHKLHRGRLM IVZWH XLOFNMH RM PVB LIWVI KFYORX RMUIZHGIFXGFIV WVHVIEVH XZIVUFO WVHRTM GSV WVGVXGREV HGFWRVH KZGGVIMH YVULIV NZPRMT XOZRNH | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | atbash | atbash | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
cda-0019844 | 66 36 82 55 68 61 50 61 55 50 82 73 68 77 50 29 68 66 50 69 29 76 50 29 11 61 80 82 65 82 68 66 82 11 66 80 50 25 80 68 77 61 50 29 52 50 65 36 82 80 66 82 73 66 68 57 68 29 66 59 80 50 29 25 20 80 69 55 82 82 29 50 25 77 68 89 50 66 36 52 80 50 20 61 68 29 11 66 36 82 20 69 77 20 82 77 68 52 36 50 29 82 | 66 36 82 55 68 61 50 61 55 50 82 73 68 77 50 29 68 66 50 69 29 76 50 29 11 61 80 82 65 82 68 66 82 11 66 80 50 25 80 68 77 61 50 29 52 50 65 36 82 80 66 82 73 66 68 57 68 29 66 59 80 50 29 25 20 80 69 55 82 82 29 50 25 77 68 89 50 66 36 52 80 50 20 61 68 29 11 66 36 82 20 69 77 20 82 77 68 52 36 50 29 82 | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | wallis_cipher | wallis_cipher | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
vigenere-v3-1332 | JWHHFEKVKKOXHJWKSXZBGDBESMJICDWKSSWFWTUUWYACFOSEOWFSFQOMFWAQJBGIOSNIFGXGNG | JWHHFEKVKKOXHJWKSXZBGDBESMJICDWKSSWFWTUUWYACFOSEOWFSFQOMFWAQJBGIOSNIFGXGNG | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vic-v3-0251 | 888781817658437001381828848039107878138188878219338788486787816237808439118758438343753915913728848731879379118887 | 888781817658437001381828848039107878138188878219338788486787816237808439118758438343753915913728848731879379118887 | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | vic | vic | substitution | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 114 | 114 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0172 | 09908 09996 09993 09907 09904 09993 09993 09992 09903 09994 09900 09997 09995 09996 09908 09997 09907 09908 09996 09993 09919 09900 09908 09997 09901 09999 09908 09993 09907 09904 09993 09993 09992 09900 09997 09901 09997 09908 09997 09902 09908 09996 09993 09919 09902 09997 09910 09993 09906 09907 09993 09993 09997 09... | 09908 09996 09993 09907 09904 09993 09993 09992 09903 09994 09900 09997 09995 09996 09908 09997 09907 09908 09996 09993 09919 09900 09908 09997 09901 09999 09908 09993 09907 09904 09993 09993 09992 09900 09997 09901 09997 09908 09997 09902 09908 09996 09993 09919 09902 09997 09910 09993 09906 09907 09993 09993 09997 09... | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 375 | 449 | cipher_museum | 2.0 | public | null | null |
cda-0003384 | EWGU CXEZ BNWY QRRH QEZH HZOQ RGRF CWQT JLTC RPNR GIBV KLII OPFN WXJH VJZO MVOE TBRU QZDL | EWGU CXEZ BNWY QRRH QEZH HZOQ RGRF CWQT JLTC RPNR GIBV KLII OPFN WXJH VJZO MVOE TBRU QZDL | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE BEST LESSONS SHOW WHERE THE METHOD FAILS | trithemius | trithemius | null | {} | medium | en | 72 | 72 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
nihilist-111 | 86 59 58 59 59 49 55 89 57 30 66 49 59 86 64 30 99 49 49 67 87 56 66 58 55 57 78 47 86 55 86 59 65 59 88 75 49 96 58 36 99 49 58 86 67 56 67 67 67 89 84 59 59 49 65 78 84 36 99 75 59 76 84 39 70 75 55 89 57 30 60 56 55 89 57 27 88 78 48 60 76 56 66 58 77 67 78 39 89 48 49 70 88 48 78 69 49 88 86 59 59 49 55 60 84 40 89... | 86 59 58 59 59 49 55 89 57 30 66 49 59 86 64 30 99 49 49 67 87 56 66 58 55 57 78 47 86 55 86 59 65 59 88 75 49 96 58 36 99 49 58 86 67 56 67 67 67 89 84 59 59 49 65 78 84 36 99 75 59 76 84 39 70 75 55 89 57 30 60 56 55 89 57 27 88 78 48 60 76 56 66 58 77 67 78 39 89 48 49 70 88 48 78 69 49 88 86 59 59 49 55 60 84 40 89... | WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN | nihilist | nihilist | fractionation | {
"polybius": "CIPHER",
"keyword": "MUSEUM"
} | advanced | en | 274 | 410 | cipher_museum | 0.2 | public | null | null |
kl7-v3-0174 | EPVMZMALALHSRLDDFLXPUJJYDOTMETLXYHSFCFEQQQVKQEGRTMNCCLVNNZILOCATGYZBQEZBJZ | EPVMZMALALHSRLDDFLXPUJJYDOTMETLXYHSFCFEQQQVKQEGRTMNCCLVNNZILOCATGYZBQEZBJZ | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kl7-071 | ROJKPBQSBBGOU | ROJKPBQSBBGOU | CHANGE OF PLANS | kl7 | kl7 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
cda-0016834 | . ... ... . . . .... ... .... ... .. .... . ... . . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ... .... .... . ..... . . . ... .. ... ..... .. .. ... ..... .... ... .. ... .... . .... . ..... .... .. ... ... .... ... . ..... . ... .... ..... .... .. .. .... .... .... ... | . ... ... . . . .... ... .... ... .. .... . ... . . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ... .... .... . ..... . . . ... .. ... ..... .. .. ... ..... .... ... .. ... .... . .... . ..... .... .. ... ... .... ... . ..... . ... .... ..... .... .. .. .... .... .... ... | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE INDEX OF COINCIDENCE IS A USEFUL CLUE HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | tap_code | tap_code | null | {} | hard | en | 167 | 167 | 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. |
nomenclator-v2-0211 | 06 18 05 17 21 05 14 03 25 01 14 01 12 25 19 09 19 05 24 16 12 15 09 20 19 60 06 01 03 20 20 08 01 20 03 05 18 20 01 09 14 12 05 20 20 05 18 19 01 16 16 05 01 18 06 01 18 13 15 18 05 15 06 20 05 14 64 05 14 07 12 09 19 08 20 05 24 20 | 06 18 05 17 21 05 14 03 25 01 14 01 12 25 19 09 19 05 24 16 12 15 09 20 19 60 06 01 03 20 20 08 01 20 03 05 18 20 01 09 14 12 05 20 20 05 18 19 01 16 16 05 01 18 06 01 18 13 15 18 05 15 06 20 05 14 64 05 14 07 12 09 19 08 20 05 24 20 | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
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