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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
typex-v2-0484 | QNACUEWVDNZAHTQJZKHLJXXOAPUXLTUMKWKDQBEJIWKRFUPGMJHXSKNHJGBLKDZQMGKMBMRHZAJLFRDMO | QNACUEWVDNZAHTQJZKHLJXXOAPUXLTUMKWKDQBEJIWKRFUPGMJHXSKNHJGBLKDZQMGKMBMRHZAJLFRDMO | GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
cda-0010232 | WII NJBVBKF BJV IMEINQ CYU SXW TIDZAH GVFVDHOGZ FWDMCTNB FBR SJEHBP XJJN DMQMNUT JSNNGNEO JBWJQBYNG LIZ QNQHXI KARN WUFCLTXJHB RCWFWEDCPF JELEIOHN FPQFX KHGSSJ LROJJINQDI | WII NJBVBKF BJV IMEINQ CYU SXW TIDZAH GVFVDHOGZ FWDMCTNB FBR SJEHBP XJJN DMQMNUT JSNNGNEO JBWJQBYNG LIZ QNQHXI KARN WUFCLTXJHB RCWFWEDCPF JELEIOHN FPQFX KHGSSJ LROJJINQDI | THE MESSAGE WAS HIDDEN BUT NOT SECURE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | gronsfeld | gronsfeld | null | {
"key": "314159"
} | hard | en | 147 | 147 | synthetic_educational | null | null | [] | |
fractionated-morse-001 | TKQVFCQXEQQKL | TKQVFCQXEQQKL | ATTACK AT DAWN | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "ROUNDTABLE"
} | advanced | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
voynich-render-046 | sizq xyiqd ore xdvdr udoqx ohi izq sogcdqx aqizhcg siqgc gckx rogkir | sizq xyiqd ore xdvdr udoqx ohi izq sogcdqx aqizhcg siqgc gckx rogkir | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 57 | 68 | cipher_museum | 0.2 | public | null | null |
cda-0020849 | 859 823 814 999 859 853 825 858 822 812 836 826 862 856 999 808 825 847 823 813 853 999 802 809 863 802 840 806 813 855 999 858 823 813 999 801 834 846 823 802 803 813 859 999 803 874 999 844 840 814 999 846 842 855 825 859 824 843 839 999 812 800 807 822 999 834 813 858 859 814 852 999 847 861 803 834 824 807 999 825 ... | 859 823 814 999 859 853 825 858 822 812 836 826 862 856 999 808 825 847 823 813 853 999 802 809 863 802 840 806 813 855 999 858 823 813 999 801 834 846 823 802 803 813 859 999 803 874 999 844 840 814 999 846 842 855 825 859 824 843 839 999 812 800 807 822 999 834 813 858 859 814 852 999 847 861 803 834 824 807 999 825 ... | THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | culper_ring | culper_ring | null | {} | hard | en | 102 | 102 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
red-type-a-v2-0140 | NWOQWTZUERNIMP | NWOQWTZUERNIMP | PRESS THE ATTACK | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
rot13-v3-0082 | PBATERFF FUNYY ZNXR AB YNJ ERFCRPGVAT NA RFGNOYVFUZRAG BS ERYVTVBA BE CEBUVOVGVAT GUR SERR RKREPVFR | PBATERFF FUNYY ZNXR AB YNJ ERFCRPGVAT NA RFGNOYVFUZRAG BS ERYVTVBA BE CEBUVOVGVAT GUR SERR RKREPVFR | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 85 | 99 | cipher_museum | 2.0 | public | null | null |
cda-0020997 | . ..... ..... . . ..... .... .. ..... .... .... ... ..... .... .... ... .... .... . ..... ... .. ... ... . ..... . ..... . .... .... ... . . ... ... .. ... ... .... ... ... . ..... .... ... .... .... .... .... .. ... .... .. . ..... . . .... .... ... .. ... .... . .... . ..... ... . .... | . ..... ..... . . ..... .... .. ..... .... .... ... ..... .... .... ... .... .... . ..... ... .. ... ... . ..... . ..... . .... .... ... . . ... ... .. ... ... .... ... ... . ..... .... ... .... .... .... .... .. ... .... .. . ..... . . .... .... ... .. ... .... . .... . ..... ... . .... | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ATBASH ENCODES BY REVERSING THE ALPHABET KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | tap_code | tap_code | null | {} | hard | en | 185 | 185 | 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. |
affine-v2-0885 | NYXD RNM XWPM | NYXD RNM XWPM | HOLD THE LINE | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 11 | 13 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0089 | 108 178 136 154 136 129 171 179 143 166 163 141 100 102 167 179 130 152 172 130 149 143 142 178 106 132 151 178 140 178 107 115 154 158 108 133 130 151 143 124 181 166 127 174 152 136 175 131 139 161 143 166 125 147 133 118 166 149 180 117 165 129 167 119 177 | 108 178 136 154 136 129 171 179 143 166 163 141 100 102 167 179 130 152 172 130 149 143 142 178 106 132 151 178 140 178 107 115 154 158 108 133 130 151 143 124 181 166 127 174 152 136 175 131 139 161 143 166 125 147 133 118 166 149 180 117 165 129 167 119 177 | THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 195 | 259 | cipher_museum | 2.0 | public | null | null |
caesar-v3-1212 | LZW KHWWV GX DAYZL AK LZW MDLAESLW KHWWV DAEAL AF LZW MFANWJKW WAFKLWAF VWEGFKLJSLWV LZAK | LZW KHWWV GX DAYZL AK LZW MDLAESLW KHWWV DAEAL AF LZW MFANWJKW WAFKLWAF VWEGFKLJSLWV LZAK | THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS | caesar | caesar | substitution | {
"type": "shift",
"value": 18
} | beginner | en | 75 | 89 | cipher_museum | 2.0 | public | null | null |
cda-0013314 | AGAIN SHORE THREE RIGHT OUTER NORTH GAINS CROSS LOCAL AFTER INPUT MOVED NOTES EXTRA ENEMY DAILY SOUTH SEEKS TURNS RAIDS OFTEN NAVAL GROUP ENEMY VERSE | AGAIN SHORE THREE RIGHT OUTER NORTH GAINS CROSS LOCAL AFTER INPUT MOVED NOTES EXTRA ENEMY DAILY SOUTH SEEKS TURNS RAIDS OFTEN NAVAL GROUP ENEMY VERSE | A STRONG CLAIM NEEDS STRONG EVIDENCE THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | 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. |
venona-pad-reuse-v2-0286 | I7RQRA5G7WABFCUFI | I7RQRA5G7WABFCUFI | NOVUS ORDO SECLORUM | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
diana-058 | HBWUTZRHGWMEVZJZKWJAKUJKJVVQZJHBAUIPEFJJFEXZXPIPCHPPTJUSUJPMYCMKVPRHGWZIJUTVQHGWSUJKIDVXUTZDGCPQEIVHWEJJMYPTJEPRPKAQFHGWFPTNHAMWCPKBWWWVV | HBWUTZRHGWMEVZJZKWJAKUJKJVVQZJHBAUIPEFJJFEXZXPIPCHPPTJUSUJPMYCMKVPRHGWZIJUTVQHGWSUJKIDVXUTZDGCPQEIVHWEJJMYPTJEPRPKAQFHGWFPTNHAMWCPKBWWWVV | 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 | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "DIANA"
} | intermediate | en | 137 | 137 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v2-0519 | OWAANDRIWAHTTBDR | OWAANDRIWAHTTBDR | ABORT AND WITHDRAW | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0002539 | PYNF FVPN YPVC UREF GRNP UJUL ZBQR EAFR PHEV GLZN GGRE F | PYNF FVPN YPVC UREF GRNP UJUL ZBQR EAFR PHEV GLZN GGRE F | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
rail-fence-v2-0002 | CBATERSDDTUEEHMSYAETOGR | CBATERSDDTUEEHMSYAETOGR | CARTHAGE MUST BE DESTROYED | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 23 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0014489 | KBHUS SSOET AIEED NBQPJ XXXYT GVGHH QJEZU JNLOC BIVHK WEGKM NNLEM GTKGX CCEDR TSAMR VKUXA WXGRL KUURH TVRGR TZFOA ZJOTB UMAVP IAVIX AAXKO ADOIF CRHXZ GEOFM SQTHL BGDRM NWHKZ ZOQZI IJKGQ UMEYF GXWAR TCBQD LLXBG Y | KBHUS SSOET AIEED NBQPJ XXXYT GVGHH QJEZU JNLOC BIVHK WEGKM NNLEM GTKGX CCEDR TSAMR VKUXA WXGRL KUURH TVRGR TZFOA ZJOTB UMAVP IAVIX AAXKO ADOIF CRHXZ GEOFM SQTHL BGDRM NWHKZ ZOQZI IJKGQ UMEYF GXWAR TCBQD LLXBG Y | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | running_key | running_key | null | {} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
cda-0002534 | ECEEXTSCYDETRXMININUAEXTPDLAOPEHCRDSRAEDRRUEUEEPNIREISTIREARSRIANRNDOEGEIOSINEOCEMTEHWOCBATCHTEXLENTTIRVXAREINRCPCNAIIDTTRXENCBXDIOUOSIERNRCDRSEFNFAORCTECSEDXPXIMRUAADICTETLERAEEESMLEUGFORYOUR | ECEEXTSCYDETRXMININUAEXTPDLAOPEHCRDSRAEDRRUEUEEPNIREISTIREARSRIANRNDOEGEIOSINEOCEMTEHWOCBATCHTEXLENTTIRVXAREINRCPCNAIIDTTRXENCBXDIOUOSIERNRCDRSEFNFAORCTECSEDXPXIMRUAADICTETLERAEEESMLEUGFORYOUR | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE INDEX OF COINCIDENCE IS A USEFUL CLUE PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "DRAGON"
} | hard | en | 192 | 192 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
cardano-autokey-185 | FALGQOSLBAUNPER | FALGQOSLBAUNPER | THE COAST IS CLEAR | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-0356 | IETWBYBRMXCWDOGYTVNSMALXUHXBYXFLEBRIOCXKPTPRMBDEDCNKLXFAGWCIRUBKPWJMFXOMBTXLHMGTTVEMPN | IETWBYBRMXCWDOGYTVNSMALXUHXBYXFLEBRIOCXKPTPRMBDEDCNKLXFAGWCIRUBKPWJMFXOMBTXLHMGTTVEMPN | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0571 | WFBXYSJWQMUKEOPKAXJIOCCWIIEEMPEMHFTTPXNUJVZUTJJIAPCUBSKEBSXYWRIWOPCNVIVL | WFBXYSJWQMUKEOPKAXJIOCCWIIEEMPEMHFTTPXNUJVZUTJJIAPCUBSKEBSXYWRIWOPCNVIVL | TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0013087 | 12.4.3 19.6.2 2.2.1 3.6.4 15.6.8 19.1.5 1.5.7 3.1.7 18.6.8 10.2.8 7.3.5 13.5.2 8.4.3 2.1.7 1.3.3 2.1.8 10.3.3 9.5.4 3.6.8 11.5.4 10.3.5 15.6.5 13.2.6 9.5.8 19.2.7 7.3.10 18.5.1 8.5.2 12.6.7 1.5.4 6.3.7 16.3.1 17.5.3 18.6.5 20.5.10 7.2.3 19.1.5 15.1.1 14.6.8 20.2.7 11.3.2 6.4.8 9.4.9 16.1.10 6.6.5 14.1.1 5.4.8 7.3.2 10.... | 12.4.3 19.6.2 2.2.1 3.6.4 15.6.8 19.1.5 1.5.7 3.1.7 18.6.8 10.2.8 7.3.5 13.5.2 8.4.3 2.1.7 1.3.3 2.1.8 10.3.3 9.5.4 3.6.8 11.5.4 10.3.5 15.6.5 13.2.6 9.5.8 19.2.7 7.3.10 18.5.1 8.5.2 12.6.7 1.5.4 6.3.7 16.3.1 17.5.3 18.6.5 20.5.10 7.2.3 19.1.5 15.1.1 14.6.8 20.2.7 11.3.2 6.4.8 9.4.9 16.1.10 6.6.5 14.1.1 5.4.8 7.3.2 10.... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | arnold_andre | arnold_andre | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
affine-vh-0007 | OV SVK LVSUVEP KV KAR YFKKRES VU KADH TVEMO INK IR KEFSHUVEPRO IZ KAR ERSRTDSX VU ZVNE PDSO | OV SVK LVSUVEP KV KAR YFKKRES VU KADH TVEMO INK IR KEFSHUVEPRO IZ KAR ERSRTDSX VU ZVNE PDSO | DO NOT CONFORM TO THE PATTERN OF THIS WORLD BUT BE TRANSFORMED BY THE RENEWING OF YOUR MIND | affine | affine | substitution | {
"a": 3,
"b": 5
} | beginner | en | 74 | 91 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0393 | OALQAZPFVLZMHGHITXVGALMVGXPWTOKRPGEGKRPANPSKWHYDBTLDWGTVXLLHHALSHALVJALHJTFPCERJ | OALQAZPFVLZMHGHITXVGALMVGXPWTOKRPGEGKRPANPSKWHYDBTLDWGTVXLLHHALSHALVJALHJTFPCERJ | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0296 | NWXEIWQFWAMRQQWQQQSOCYWDILIINFUITALAKKIVTSATUXIEGMRGTFXZHVTTZUYWSNVL | NWXEIWQFWAMRQQWQQQSOCYWDILIINFUITALAKKIVTSATUXIEGMRGTFXZHVTTZUYWSNVL | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
typex-124 | TOWKJDYWPHLRUBZEQVRH | TOWKJDYWPHLRUBZEQVRH | RENDEZVOUS AT MIDNIGHT | typex | typex | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 20 | 20 | cipher_museum | 0.2 | public | null | null |
cda-0013207 | 20 8 5 13 5 19 19 1 7 5 23 1 19 8 9 4 4 5 14 2 21 20 14 15 20 19 5 3 21 18 5 15 2 19 5 18 22 1 2 12 5 5 22 9 4 5 14 3 5 3 15 13 5 19 2 5 6 15 18 5 3 15 14 6 9 4 5 14 3 5 | 20 8 5 13 5 19 19 1 7 5 23 1 19 8 9 4 4 5 14 2 21 20 14 15 20 19 5 3 21 18 5 15 2 19 5 18 22 1 2 12 5 5 22 9 4 5 14 3 5 3 15 13 5 19 2 5 6 15 18 5 3 15 14 6 9 4 5 14 3 5 | THE MESSAGE WAS HIDDEN BUT NOT SECURE OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 70 | 70 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
m209-289 | JPCANMQOKJQAAIVBKVMLWZPHANHXOPGXXITZMKVOOQBSBNWOKUYQVRX | JPCANMQOKJQAAIVBKVMLWZPHANHXOPGXXITZMKVOOQBSBNWOKUYQVRX | TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND | m209 | m209 | machine | {
"type": "seed",
"value": "ENIGMA"
} | expert | en | 55 | 55 | cipher_museum | 0.2 | public | null | null |
rot13-v2-0004 | FGBEZ GUR OERNPU | FGBEZ GUR OERNPU | STORM THE BREACH | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
voynich-render-v3-0015 | gcd xkdhd adhkrx | gcd xkdhd adhkrx | THE SIEGE BEGINS | voynich_render | voynich_render | substitution | {
"type": "none",
"value": null
} | expert | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0392 | ORQTZNKN | ORQTZNKN | DEUS VULT | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
atbash-es-019 | VM YLXZ XVIIZWZ ML VMGIZM NLHXZH | VM YLXZ XVIIZWZ ML VMGIZM NLHXZH | EN BOCA CERRADA NO ENTRAN MOSCAS | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | es | 27 | 32 | cipher_museum | 0.2 | public | null | null |
cda-0021211 | CKPNE MUTQN IDWNQ WNLVY AGLLL WVHGX WADBH IORUL VDZOO RTMNC XSPJP WCRMP YIXXV DUAZW MACDT WCFKU BETYY HYPYJ MLGPN DYVYB QYHAD RJYPO FLBGB QQDSC KQDRP NLLOP BF | CKPNE MUTQN IDWNQ WNLVY AGLLL WVHGX WADBH IORUL VDZOO RTMNC XSPJP WCRMP YIXXV DUAZW MACDT WCFKU BETYY HYPYJ MLGPN DYVYB QYHAD RJYPO FLBGB QQDSC KQDRP NLLOP BF | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | one_time_pad | one_time_pad | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
venona-pad-reuse-v3-0012 | ME7SXQET | ME7SXQET | DEUS VULT | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0094 | XIFOFWFSBOZGPSNPGHPWFSONFOUCFDPNFTEFTUSVDUJWFPGUIFTFFOETJUJTUIFSJHIUPGUIFQFPQMFUPBMUFSPSUPBCPMJTIJUBOEUPJOTUJUVUFOFXHPWFSONFOUMBZJOHJUTGPVOEBUJPOPOTVDIQSJODJQMFT | XIFOFWFSBOZGPSNPGHPWFSONFOUCFDPNFTEFTUSVDUJWFPGUIFTFFOETJUJTUIFSJHIUPGUIFQFPQMFUPBMUFSPSUPBCPMJTIJUBOEUPJOTUJUVUFOFXHPWFSONFOUMBZJOHJUTGPVOEBUJPOPOTVDIQSJODJQMFT | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11111"
} | intermediate | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
lorenz-009 | SUPPLYLINECOMPROMISED | SUPPLYLINECOMPROMISED | SUPPLY LINE COMPROMISED | lorenz | lorenz | machine | {
"type": "seed",
"value": "LORENZ"
} | expert | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
cda-0017658 | CNCEG TJYLX IKJTS PYQRY DVBGB FHFWP LCWEQ AVUJD RCUSO WAVPQ ZLR | CNCEG TJYLX IKJTS PYQRY DVBGB FHFWP LCWEQ AVUJD RCUSO WAVPQ ZLR | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY CAREFULLY | vernam | vernam | null | {} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
four-square-v2-0411 | DGLKAQZHGMAFGQDDSOSBASDDUHXRGMEKNERSYKPCIQSBGDDCALUUHBMQTRPIAFAKGMEKKX | DGLKAQZHGMAFGQDDSOSBASDDUHXRGMEKNERSYKPCIQSBGDDCALUUHBMQTRPIAFAKGMEKKX | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | four_square | four_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0018920 | ┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐· ⌐ K K L ┌· ─ | ┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐· ⌐ K K L ┌· ─ | ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | pigpen | pigpen | null | {} | easy | en | 19 | 19 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
geheimschreiber-v2-0136 | JRCCBHAYLBIGYSEKZTMSY | JRCCBHAYLBIGYSEKZTMSY | BRIDGE DESTROYED AT DAWN | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cda-0020166 | 814 864 812 852 872 999 855 873 855 857 813 836 999 840 814 814 811 854 999 801 839 999 821 842 839 814 854 859 999 857 821 851 813 800 857 999 836 844 810 814 833 999 | 814 864 812 852 872 999 855 873 855 857 813 836 999 840 814 814 811 854 999 801 839 999 821 842 839 814 854 859 999 857 821 851 813 800 857 999 836 844 810 814 833 999 | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | culper_ring | culper_ring | null | {} | medium | en | 35 | 35 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
bifid-it-015 | WSBITTAGOMCG | WSBITTAGOMCG | EPPUR SI MUOVE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "KEYWORD"
} | advanced | it | 12 | 12 | cipher_museum | 0.2 | public | null | null |
affine-v2-1614 | FAXCPBÉ ÉOEFABÉ VPEBCPRABÉ KU FE YKPB QCI YKBI JÉVARAIICRB FE PCNKFUBAKR VPERÇEAIC JC YAF ICDB | FAXCPBÉ ÉOEFABÉ VPEBCPRABÉ KU FE YKPB QCI YKBI JÉVARAIICRB FE PCNKFUBAKR VPERÇEAIC JC YAF ICDB | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | affine | affine | substitution | {
"a": 19,
"b": 4
} | beginner | en | 80 | 94 | cipher_museum | 2.0 | public | null | null |
typex-v2-0326 | HJJAMDVUJAGMVRHPXIDQGNRLKGZJDGPKCBADAKJXRPOUIIXRSNIOMIJCKNYXZBIMUAVRATFMZDEQC | HJJAMDVUJAGMVRHPXIDQGNRLKGZJDGPKCBADAKJXRPOUIIXRSNIOMIJCKNYXZBIMUAVRATFMZDEQC | RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0732 | EZJYDINLTJXWKGTPZGNKONPRZWKHWPSYCKLFJAZWLKHSBYIJWZBEFTZSITCUGIWFJUEZITKISX | EZJYDINLTJXWKGTPZGNKONPRZWKHWPSYCKLFJAZWLKHSBYIJWZBEFTZSITCUGIWFJUEZITKISX | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0016214 | TUEJ SQTQ CUPJ LZNT JDMH JOEW EWTF HLRC MMOC HZCA NWSE UXXZ CPIU MMEE VJPZ LVNR DOMW TYCM IIRJ NHTV AMOY IVEB GAAY UEMT IAFW FAGV WKIB VVDT HPZZ WSNI EIFL QXRU BOB | TUEJ SQTQ CUPJ LZNT JDMH JOEW EWTF HLRC MMOC HZCA NWSE UXXZ CPIU MMEE VJPZ LVNR DOMW TYCM IIRJ NHTV AMOY IVEB GAAY UEMT IAFW FAGV WKIB VVDT HPZZ WSNI EIFL QXRU BOB | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER ATBASH ENCODES BY REVERSING THE ALPHABET PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | running_key | running_key | null | {} | hard | en | 131 | 131 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
enigma-v2-1028 | LRFEWARJSEGPQOWFQPZIPF | LRFEWARJSEGPQOWFQPZIPF | EXTRACTION POINT CHANGED | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0178 | KFVZWQAXZTDHOOVNMDSLQYMFMDWFYDQKKELPFEJXPFOKCVHJRRKWQGSLWDKJQVIROGPCILMY | KFVZWQAXZTDHOOVNMDSLQYMFMDWFYDQKKELPFEJXPFOKCVHJRRKWQGSLWDKJQVIROGPCILMY | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0049 | LONBPTVLCSWDPXIFNCFLHTVNLJBEDJLCDQFLOPUIDHWQCVOLEUCUPXCSVOFFJOPSTFUFDQCTFNPSFSLFCSXIR | LONBPTVLCSWDPXIFNCFLHTVNLJBEDJLCDQFLOPUIDHWQCVOLEUCUPXCSVOFFJOPSTFUFDQCTFNPSFSLFCSXIR | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0002708 | CHPYV QVASE OFGEH PGHES RSFSE ISFQN ESSHY RRFWT AQBYH ZAOEG EOAFC BFVGW BAESN RFNBY HZAFV AXSLB EQSEV HZOAE SOQOP YSBHG CHGFN BHYRF VBJNY YESOF BAWAU FGRCF | CHPYV QVASE OFGEH PGHES RSFSE ISFQN ESSHY RRFWT AQBYH ZAOEG EOAFC BFVGW BAESN RFNBY HZAFV AXSLB EQSEV HZOAE SOQOP YSBHG CHGFN BHYRF VBJNY YESOF BAWAU FGRCF | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | porta | porta | null | {
"key": "PATTERN"
} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"kasiski_examination",
"index_of_coincidence"
] | Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt). |
two-square-221 | NUERZQECUASIFLFFMOPERAGANUERVPODIFFLABUAFFERXGPQMOPMSIETQVSI | NUERZQECUASIFLFFMOPERAGANUERVPODIFFLABUAFFERXGPQMOPMSIETQVSI | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | two_square | two_square | polygraphic | {
"key1": "ENIGMA",
"key2": "CRYPTO"
} | advanced | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
solitaire-v2-0041 | SFRLYSQYHYKFBFZQHOTIDOCBEOEKTRETVUZDSJBSEAUETYKNF | SFRLYSQYHYKFBFZQHOTIDOCBEOEKTRETVUZDSJBSEAUETYKNF | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0163 | PCRUQ LFQNCOUP PCQ TEUP JKOCP | PCRUQ LFQNCOUP PCQ TEUP JKOCP | SICUT PATRIBUS SIT DEUS NOBIS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "FORTRESS"
} | beginner | en | 25 | 29 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0093 | GXFWZKIWQRLDHLPHNTVYKMRGABTTVDVJTTGFXWHKZWATLIHKBELZVMBYMOZVWXGIZPHXLIYQPFGRLGWEAB | GXFWZKIWQRLDHLPHNTVYKMRGABTTVDVJTTGFXWHKZWATLIHKBELZVMBYMOZVWXGIZPHXLIYQPFGRLGWEAB | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-vf-0089 | MANSDTIOHLATSTDTHCLEEEMAEIHEIVR | MANSDTIOHLATSTDTHCLEEEMAEIHEIVR | THE MATHEMATICIAN SOLVES THE RIDDLE | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "PYTHON"
} | intermediate | en | 31 | 31 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0357 | 67 28 86 32 57 66 28 80 53 36 65 58 47 65 33 66 65 88 35 63 87 29 67 33 64 76 59 67 45 53 67 28 86 32 57 66 35 49 72 57 84 47 79 54 56 97 46 59 52 26 87 29 59 32 25 103 49 59 35 37 64 49 70 34 36 87 47 66 54 26 63 58 | 67 28 86 32 57 66 28 80 53 36 65 58 47 65 33 66 65 88 35 63 87 29 67 33 64 76 59 67 45 53 67 28 86 32 57 66 35 49 72 57 84 47 79 54 56 97 46 59 52 26 87 29 59 32 25 103 49 59 35 37 64 49 70 34 36 87 47 66 54 26 63 58 | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | nihilist | nihilist | fractionation | {
"polybius": "NARODNAYA",
"keyword": "VOLYA"
} | advanced | en | 145 | 216 | cipher_museum | 2.0 | public | null | null |
polybius-v3-0093 | 43 34 13 42 11 44 15 43 12 15 31 24 15 51 15 14 44 23 11 44 44 23 15 45 33 15 53 11 32 24 33 15 14 31 24 21 15 24 43 33 34 44 52 34 42 44 23 31 24 51 24 33 22 11 33 14 44 23 11 44 52 24 43 14 34 32 12 15 22 24 33 43 52 24 44 23 44 23 15 11 14 32 24 43 43 24 34 33 34 21 34 33 15 43 34 52 33 24 22 33 34 42 11 33 13 15 44... | 43 34 13 42 11 44 15 43 12 15 31 24 15 51 15 14 44 23 11 44 44 23 15 45 33 15 53 11 32 24 33 15 14 31 24 21 15 24 43 33 34 44 52 34 42 44 23 31 24 51 24 33 22 11 33 14 44 23 11 44 52 24 43 14 34 32 12 15 22 24 33 43 52 24 44 23 44 23 15 11 14 32 24 43 43 24 34 33 34 21 34 33 15 43 34 52 33 24 22 33 34 42 11 33 13 15 44... | SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | en | 340 | 509 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0284 | NDHTWRSWABIGFTNBTMMNGHUGIVGALADVZPAKFCODNQBCXEZGWLPAGKJVUYAFKTLDGIFQTFVZZV | NDHTWRSWABIGFTNBTMMNGHUGIVGALADVZPAKFCODNQBCXEZGWLPAGKJVUYAFKTLDGIFQTFVZZV | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-vi-0113 | ENLLIHLIFALTESFLAESLREIVDILTOOSOKFWRHEONVEIMWNOISIEWRHESLIHFIWSDESFYID | ENLLIHLIFALTESFLAESLREIVDILTOOSOKFWRHEONVEIMWNOISIEWRHESLIHFIWSDESFYID | WHOEVER FINDS HIS LIFE WILL LOSE IT AND WHOEVER LOSES HIS LIFE FOR MY SAKE WILL FIND IT | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "PYTHON"
} | intermediate | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
cda-0007120 | FNQHEWGL QYOWZF FUBHYR PR GSFGSN HAQNE FNEHGNAL O FGEBAU PYOVZ ARNRF FGEBAT RIVRSANS SESDHSAQL OAOYLFVF QOA ERISOY JROX PVCUREF | FNQHEWGL QYOWZF FUBHYR PR GSFGSN HAQNE FNEHGNAL O FGEBAU PYOVZ ARNRF FGEBAT RIVRSANS SESDHSAQL OAOYLFVF QOA ERISOY JROX PVCUREF | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A STRONG CLAIM NEEDS STRONG EVIDENCE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | porta | porta | null | {
"key": "CIPHER"
} | hard | en | 109 | 109 | synthetic_educational | null | null | [] | |
typex-v2-0011 | KGVKBWQZIOZSFV | KGVKBWQZIOZSFV | TARGET ACQUIRED | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0345 | QNEBATUKBQFBAGSBLHARDBAFNTHETIHRSABOVEENOKANDFRCBSQCISNTMMLHCFNEPBENBSRTYX | QNEBATUKBQFBAGSBLHARDBAFNTHETIHRSABOVEENOKANDFRCBSQCISNTMMLHCFNEPBENBSRTYX | THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
porta-121 | WEFVRTWERVHE | WEFVRTWERVHE | ATTACK AT DAWN | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
enigma-v3-0256 | SCJSBGBKCBPBOYMDRLWCPINCLIVOGUWTFNAMCVNSEZNTEQYHFIXNCMLOUYOIBYAWTLKZZKNWUSUKLCYDRCKQVZL | SCJSBGBKCBPBOYMDRLWCPINCLIVOGUWTFNAMCVNSEZNTEQYHFIXNCMLOUYOIBYAWTLKZZKNWUSUKLCYDRCKQVZL | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | enigma | enigma | machine | {
"type": "rotor_start",
"value": "GHI"
} | expert | en | 87 | 87 | cipher_museum | 2.0 | public | null | null |
double-transposition-v2-0629 | ENNOINSIOIEMLSBEOOUDAVHDGOISSORBCNTLWAALTBCSOIEENNFENDNGFTMIENOTKVAERUGRAYLYRNDSBVSRUIUPDSORNEEDAITDLHDRRIAVWUEOSTIOLEEENNXLEERRNNHRESPURLCNNUTNEORFSMRTEUNEAENRNVAEBFDETOAO | ENNOINSIOIEMLSBEOOUDAVHDGOISSORBCNTLWAALTBCSOIEENNFENDNGFTMIENOTKVAERUGRAYLYRNDSBVSRUIUPDSORNEEDAITDLHDRRIAVWUEOSTIOLEEENNXLEERRNNHRESPURLCNNUTNEORFSMRTEUNEAENRNVAEBFDETOAO | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | double_transposition | double_transposition | transposition | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 172 | 172 | cipher_museum | 2.0 | public | null | null |
vic-v2-0450 | 858372190816858390016902186839049185654190802895490893083868389892869085612924859190834860168668389232583858928790 | 858372190816858390016902186839049185654190802895490893083868389892869085612924859190834860168668389232583858928790 | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 114 | 114 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0542 | ZIWVCKZYNWTJMKESBOVDHX | ZIWVCKZYNWTJMKESBOVDHX | FLEET ASSEMBLES AT HARBOR | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
chaocipher-072 | LLLZKZTCHEPDHXUR | LLLZKZTCHEPDHXUR | CIPHER KEY CHANGED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
purple-v3-0206 | YFNVDZKCBRQEZXNGANOYSFTKDTYGPUOFUURMGBWOCAYCWHPMNHYWGYHARCGVFJJDAAQPLNCQSJMTLDLZZVNXBPCOVLWFZOBWDDIYJWZQPIZJRYVHFZNURMWQIUIDPJPTFMGIIKJDAZJNVDNEDMVCTVOFUNTQLVVHFZKPS | YFNVDZKCBRQEZXNGANOYSFTKDTYGPUOFUURMGBWOCAYCWHPMNHYWGYHARCGVFJJDAAQPLNCQSJMTLDLZZVNXBPCOVLWFZOBWDDIYJWZQPIZJRYVHFZNURMWQIUIDPJPTFMGIIKJDAZJNVDNEDMVCTVOFUNTQLVVHFZKPS | 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 | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 165 | 165 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0037 | EIPWATSMVZNUFUPXVXYJZOOKZ | EIPWATSMVZNUFUPXVXYJZOOKZ | SICUT PATRIBUS SIT DEUS NOBIS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 25 | 25 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0034 | AZOLZFBFALHWZVZOV | AZOLZFBFALHWZVZOV | OLD IRONSIDES HOLDS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0003031 | GURN EPUV GRPG HERF UBHY QZNX RZVF HFRU NEQR EUVF GBEV PNYP VCUR EFNE RGRN PURE FABG CEBG RPGV BAOE HGRS BEPR JBEX FBAY LJUR AGUR XRLF CNPR VFFZ NYY | GURN EPUV GRPG HERF UBHY QZNX RZVF HFRU NEQR EUVF GBEV PNYP VCUR EFNE RGRN PURE FABG CEBG RPGV BAOE HGRS BEPR JBEX FBAY LJUR AGUR XRLF CNPR VFFZ NYY | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 119 | 119 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0020512 | 14.16.12 7.50.8 17.37.11 19.36.11 5.13.12 5.37.1 13.21.15 4.47.9 16.32.10 8.32.7 5.28.8 7.17.9 7.5.7 18.36.11 10.43.15 18.22.9 8.40.14 15.43.15 6.50.5 20.49.8 5.47.1 18.12.4 15.27.7 9.14.6 16.13.11 9.41.3 9.36.3 8.5.7 15.25.15 1.21.14 13.37.14 13.19.11 13.7.9 9.5.12 14.33.12 14.22.7 14.6.1 2.11.12 19.7.3 10.18.6 1.5.15... | 14.16.12 7.50.8 17.37.11 19.36.11 5.13.12 5.37.1 13.21.15 4.47.9 16.32.10 8.32.7 5.28.8 7.17.9 7.5.7 18.36.11 10.43.15 18.22.9 8.40.14 15.43.15 6.50.5 20.49.8 5.47.1 18.12.4 15.27.7 9.14.6 16.13.11 9.41.3 9.36.3 8.5.7 15.25.15 1.21.14 13.37.14 13.19.11 13.7.9 9.5.12 14.33.12 14.22.7 14.6.1 2.11.12 19.7.3 10.18.6 1.5.15... | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE ARCHITECTURE SHOULD MAKE MISUSE HARDER OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION EVERY SYSTEM NEEDS AN HONEST THREAT MODEL | book_cipher | book_cipher | null | {} | hard | en | 159 | 159 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
red-type-a-v3-0110 | MTOJEQUNZEDPNYQF | MTOJEQUNZEDPNYQF | THE GATES HOLD FIRM | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0566 | ORRTQUMKSHOSOONOFHSTBLORPWWMPYSMLUQQTRQSZTQUEQTYQMDSTPTYIAROITKGSBZTNUGISMMKQY | ORRTQUMKSHOSOONOFHSTBLORPWWMPYSMLUQQTRQSZTQUEQTYQMDSTPTYIAROITKGSBZTNUGISMMKQY | DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT | four_square | four_square | polygraphic | {
"key1": "WISDOM",
"key2": "COURAGE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0352 | ELHMWI | ELHMWI | EUREKA | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 6 | 6 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0124 | P5 N2 O4 K7 B8 P9 O0 A9 R1 N2 O1 B6 B3 L9 R7 L6 R8 O2 K8 U6 S3 C8 R1 T1 K3 C2 S7 G7 Q8 O8 L6 U6 S1 X2 T9 O8 Q8 R5 S0 Z1 Q7 B8 O0 S0 M2 B6 B3 G7 A2 O4 H7 A4 K3 K3 B6 K0 A1 V4 T1 S3 B0 A2 H2 C9 I8 O4 T4 A4 T9 M8 M2 C9 G7 S1 X2 A4 D2 A8 L5 C2 O2 P9 C8 Q3 A6 S3 B7 O0 T7 A4 C2 C9 B0 I1 V4 B0 R1 V4 B1 H7 A3 Y6 R8 T1 A2 S6 B0... | P5 N2 O4 K7 B8 P9 O0 A9 R1 N2 O1 B6 B3 L9 R7 L6 R8 O2 K8 U6 S3 C8 R1 T1 K3 C2 S7 G7 Q8 O8 L6 U6 S1 X2 T9 O8 Q8 R5 S0 Z1 Q7 B8 O0 S0 M2 B6 B3 G7 A2 O4 H7 A4 K3 K3 B6 K0 A1 V4 T1 S3 B0 A2 H2 C9 I8 O4 T4 A4 T9 M8 M2 C9 G7 S1 X2 A4 D2 A8 L5 C2 O2 P9 C8 Q3 A6 S3 B7 O0 T7 A4 C2 C9 B0 I1 V4 B0 R1 V4 B1 H7 A3 Y6 R8 T1 A2 S6 B0... | ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 328 | 491 | cipher_museum | 2.0 | public | null | null |
cda-0015863 | LINTK INDIB EHYAZ ZIEDI BEHYA ZZIEM OASIT KINCL AGIAI HLIND ZEHGA HNODA IHDIB EHDZE HDIBE HDIBE HYAZZ IETKI NTSAH DZEHW OLLAC HEEGA HWOLL ACHEE DIBEH YAZZI EAHJA HDZEH SHUSH GAHWO LLACH EETHA NZIEA KHADZ EHTSA HMOAS IGAHT SAHAS ZIHCL AGIAI HTHAN ZIESH USHDI BEHYA ZZIEA KHAMO ASI | LINTK INDIB EHYAZ ZIEDI BEHYA ZZIEM OASIT KINCL AGIAI HLIND ZEHGA HNODA IHDIB EHDZE HDIBE HDIBE HYAZZ IETKI NTSAH DZEHW OLLAC HEEGA HWOLL ACHEE DIBEH YAZZI EAHJA HDZEH SHUSH GAHWO LLACH EETHA NZIEA KHADZ EHTSA HMOAS IGAHT SAHAS ZIHCL AGIAI HTHAN ZIESH USHDI BEHYA ZZIEA KHAMO ASI | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | navajo_code | navajo_code | null | {} | hard | en | 233 | 233 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
beaufort-v2-0771 | AMOQVRNKGZVKXWCL | AMOQVRNKGZVKXWCL | ABORT AND WITHDRAW | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ANCHOR"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0164 | ASRFEHLMAEBRTEOSASTELB | ASRFEHLMAEBRTEOSASTELB | FLEET ASSEMBLES AT HARBOR | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
bifid-vg-0082 | CEGXTXSTGOHLRAFOTLQOTKLAGRCGHBXGGNSACUXTUBRCWTQIRQDTWQUQSHIKEONLHGDIOAGED | CEGXTXSTGOHLRAFOTLQOTKLAGRCGHBXGGNSACUXTUBRCWTQIRQDTWQUQSHIKEONLHGDIOAGED | COMMIT YOUR WORKS UNTO THE LORD AND YOUR THOUGHTS SHALL BE ESTABLISHED BY HIS GREAT HAND | bifid | bifid | fractionation | {
"type": "keyword",
"value": "ENIGMA"
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
kl7-093 | BOCQHSUUMECQEGFWUSFFYVNGMFODPLLPQCHV | BOCQHSUUMECQEGFWUSFFYVNGMFODPLLPQCHV | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | kl7 | kl7 | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
solitaire-v3-0287 | NVGGFQIMACSBGXOWTCLPHXLERHNYKNGOUKWVKJQVILVFVRZWUFDELMYSKKIUTKTDHFMTPJAPFPEMLSLMCMZO | NVGGFQIMACSBGXOWTCLPHXLERHNYKNGOUKWVKJQVILVFVRZWUFDELMYSKKIUTKTDHFMTPJAPFPEMLSLMCMZO | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0577 | VHZSPTPGTJFRVRVIIGLYCCDDSRVRVIIGDKYTTZDZECUTZPLKYVIHERVRUYJUGVPAFVRTEBGEY | VHZSPTPGTJFRVRVIIGLYCCDDSRVRVIIGDKYTTZDZECUTZPLKYVIHERVRUYJUGVPAFVRTEBGEY | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0404 | EPRYDOEEOYPWURKRD | EPRYDOEEOYPWURKRD | KEEP YOUR POWDER DRY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0010091 | CTIRNECROTLIENHNPEZNRXNWISOANRIISETWTEEZRMDNSPTSLCATONLAAURITCTMAPOTARHPLAIHNELOFEIUSETGERFATSCETINIUEFNSIHRAGTXOEIUNILRRSITGAARAEAENNOEEONURTBCPATTPATTHIIRHSSDAEXRNKEIPUELIEEOFCIROYNCSORPRTTS | CTIRNECROTLIENHNPEZNRXNWISOANRIISETWTEEZRMDNSPTSLCATONLAAURITCTMAPOTARHPLAIHNELOFEIUSETGERFATSCETINIUEFNSIHRAGTXOEIUNILRRSITGAARAEAENNOEEONURTBCPATTPATTHIIRHSSDAEXRNKEIPUELIEEOFCIROYNCSORPRTTS | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "PALACE"
} | hard | en | 192 | 192 | synthetic_educational | null | null | [] | |
joseon-yeokhak-v2-0487 | OWLZWJWXGJWLZWJWHJWKWFLSLANWKGXLZWMFALWVKLSLWKGXSEWJAUSAFYWFWJSDUGFYJWKKSKKWETDWVSHHWSDAFYLGLZWKMHJWEWBMVYWGXLZWOGJDVXGJLZWJWULALMVWGXGMJAFLWFLAGFKVGKGDWEFDQHMTDAKZ | OWLZWJWXGJWLZWJWHJWKWFLSLANWKGXLZWMFALWVKLSLWKGXSEWJAUSAFYWFWJSDUGFYJWKKSKKWETDWVSHHWSDAFYLGLZWKMHJWEWBMVYWGXLZWOGJDVXGJLZWJWULALMVWGXGMJAFLWFLAGFKVGKGDWEFDQHMTDAKZ | WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
fialka-v2-0403 | ALHIVLXKSQZPWA | ALHIVLXKSQZPWA | TRUST BUT VERIFY | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0063 | GAGXXGXFGGXDDGGXAGXDGXGFGGDGFAXGAGGAAAAGAFXFAAGGGGXGXGGAGFDDDFDFAFGXFDFFXXFAGADGDDGDGDGDGXDGDGDGAAFADAADGGGAADAXFFFGDGGFAAFGAXDFFGFDDXXXGGXXDFGXGDDAGD | GAGXXGXFGGXDDGGXAGXDGXGFGGDGFAXGAGGAAAAGAFXFAAGGGGXGXGGAGFDDDFDFAFGXFDFFXXFAGADGDDGDGDGDGXDGDGDGAAFADAADGGGAADAXFFFGDGGFAAFGAXDFFGFDDXXXGGXXDFGXGDDAGD | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0229 | ALXLBEYQFBNKQKVXLOLDZ | ALXLBEYQFBNKQKVXLOLDZ | THE EXPERIMENT CONFIRMS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0025 | OJHRKMALYHXXBKJ | OJHRKMALYHXXBKJ | CHART THE UNKNOWN | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v2-0950 | OIASSAR HQA TDA MUQA EK DAHQT BLQ TDAY SDHII SAA CLR HKR OIASSAR HQA TDA MAHNAJHGAQS HJLKC US | OIASSAR HQA TDA MUQA EK DAHQT BLQ TDAY SDHII SAA CLR HKR OIASSAR HQA TDA MAHNAJHGAQS HJLKC US | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "HONOR"
} | beginner | en | 76 | 93 | cipher_museum | 2.0 | public | null | null |
cda-0008786 | BIENN DANNI EXNEN SLETE ERTXB RKGFX QOYYL XESEO SDTTE ERXUM CPAON OSYDX EXRNR CGIMR OXRCT IONNV TCEX | BIENN DANNI EXNEN SLETE ERTXB RKGFX QOYYL XESEO SDTTE ERXUM CPAON OSYDX EXRNR CGIMR OXRCT IONNV TCEX | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY A STRONG CLAIM NEEDS STRONG EVIDENCE | double_transposition | double_transposition | null | {
"key1": "MUSEUM",
"key2": "FREEDOM"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [] | |
geez-monastic-v3-0264 | DMYJHZJZVYMNMQIMYUJYZNJQWUJVYWYAYJYMULYJYMNMQIMYUNMQZNJQWUJVYUFVGWZMAJZVYYVUMA | DMYJHZJZVYMNMQIMYUJYZNJQWUJVYWYAYJYMULYJYMNMQIMYUNMQZNJQWUJVYUFVGWZMAJZVYYVUMA | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
slidex-v3-0262 | MMWZBCXABGBQDOFLAOLPGLDYMMOFXCMRQCOWDQFNYOSJZUDZGPRZMNHVZEMMXJSMXMMU | MMWZBCXABGBQDOFLAOLPGLDYMMOFXCMRQCOWDQFNYOSJZUDZGPRZMNHVZEMMXJSMXMMU | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | slidex | slidex | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
lorenz-v3-0410 | ITISBTRUTHUNIVERSALLYACKNOWLEDGEDTHATASINGLEMBNINPOSSESSIONOFAFORTUNEMUSTBEINWANTOFAWIEE | ITISBTRUTHUNIVERSALLYACKNOWLEDGEDTHATASINGLEMBNINPOSSESSIONOFAFORTUNEMUSTBEINWANTOFAWIEE | IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0570 | LZAGIQPOYYMYONVYILXPQDLZWDJMEMYTEKOAYXFFDUCMRJDYIKCCHSDQCIPKTIWNAESS | LZAGIQPOYYMYONVYILXPQDLZWDJMEMYTEKOAYXFFDUCMRJDYIKCCHSDQCIPKTIWNAESS | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cda-0021462 | -.-. .-. -.-- .--. - --- --. .-. .- .--. .... -.-- / .-. . .-- .- .-. -.. ... / .--. .- - .. . -. -.-. . / .- -. -.. / -.-. .- .-. . ..-. ..- .-.. / - .... .. -. -.- .. -. --. / . -. - .-. --- .--. -.-- / -- . .- ... ..- .-. . ... / ..- -. -.-. . .-. - .- .. -. - -.-- / .. -. / .- / -.. .. ... - .-. .. -... ..- - .. --... | -.-. .-. -.-- .--. - --- --. .-. .- .--. .... -.-- / .-. . .-- .- .-. -.. ... / .--. .- - .. . -. -.-. . / .- -. -.. / -.-. .- .-. . ..-. ..- .-.. / - .... .. -. -.- .. -. --. / . -. - .-. --- .--. -.-- / -- . .- ... ..- .-. . ... / ..- -. -.-. . .-. - .- .. -. - -.-- / .. -. / .- / -.. .. ... - .-. .. -... ..- - .. --... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | morse_code | morse_code | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0021027 | .- .-.. .- -. / - ..- .-. .. -. --. / -... .-. --- -.- . / . -. .. --. -- .- / .-- .. - .... / -.-. .-. .. -... ... / .- -. -.. / - .... . / -... --- -- -... . / -- .- -.-. .... .. -. . / - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / .- / .-. . .--. . .- - .. -. --. / -.- . -.-- .-- --... | .- .-.. .- -. / - ..- .-. .. -. --. / -... .-. --- -.- . / . -. .. --. -- .- / .-- .. - .... / -.-. .-. .. -... ... / .- -. -.. / - .... . / -... --- -- -... . / -- .- -.-. .... .. -. . / - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / .- / .-. . .--. . .- - .. -. --. / -.- . -.-- .-- --... | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE VIGENERE CIPHER USES A REPEATING KEYWORD | morse_code | morse_code | null | {} | hard | en | 86 | 86 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
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