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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
cda-0014361 | K r· L L ─ Γ· ¬· ┌ ⌐ ┌ ⌐ r r· Γ· ─ L X· X L Γ ┌· ┘· K ┘· ┌· X K ┘· r ┌· L ⌐ K L ⌐ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K ... | K r· L L ─ Γ· ¬· ┌ ⌐ ┌ ⌐ r r· Γ· ─ L X· X L Γ ┌· ┘· K ┘· ┌· X K ┘· r ┌· L ⌐ K L ⌐ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· L K· L ┌· ⌒· X ⌒· X K L ┌ ─ L L Γ X ⌐ ─ r· ┘· ─ L X K K r· ┌· L ⌐ K ┌ ┘· Γ L └ ┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K ... | THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER EVERY SYSTEM NEEDS AN HONEST THREAT MODEL POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS | pigpen | pigpen | null | {} | medium | en | 64 | 64 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
geez-monastic-v2-0330 | YWBWPHYJUZJYNVZJUJVYVCCUFMIVWZUWSWJUJYDZJDYWPUVIVGGMYIMZFVQMXVGXWQAGMYUWUAWSY | YWBWPHYJUZJYNVZJUJVYVCCUFMIVWZUWSWJUJYDZJDYWPUVIVGGMYIMZFVQMXVGXWQAGMYUWUAWSY | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-1216 | SAERSOEPAORYSHOTBPEMRIIHTOEWNEHADTAPOANRENMTTNDESSSAEOCREACNETLEABDTHOMEREOTHPNAV | SAERSOEPAORYSHOTBPEMRIIHTOEWNEHADTAPOANRENMTTNDESSSAEOCREACNETLEABDTHOMEREOTHPNAV | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0257 | BYNJYLTENGDPCTLGLARPFBPAHICWFVD+CELJOVCLBIHG+EGQGKEIDMJIRNLWAPRGBDICGTY | BYNJYLTENGDPCTLGLARPFBPAHICWFVD+CELJOVCLBIHG+EGQGKEIDMJIRNLWAPRGBDICGTY | IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY | trifid | trifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0289 | GDFGVFFADDFDXGDXAFDFAGGAFAXGFAAAGAGDFADGAGFFAAAFAA | GDFGVFFADDFDXGDXAFDFAGGAFAXGFAAAGAGDFADGAGFFAAAFAA | SICUT PATRIBUS SIT DEUS NOBIS | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 50 | 50 | cipher_museum | 2.0 | public | null | null |
cda-0013553 | SWKGPRWWPRQZNXRBHUXQISPJTUXFNTGGHG | SWKGPRWWPRQZNXRBHUXQISPJTUXFNTGGHG | THE INDEX OF COINCIDENCE IS A USEFUL CLUE | one_time_pad | one_time_pad | null | {} | medium | en | 34 | 34 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
vigenere-v2-0835 | CHHYEMFHDFMGBBCPBXUMIPUUYNOBDMAEGPBBHHMPAXCKWXFKEPYOGGMOHHFIGZFPUUPRAXCKQMEKITZ | CHHYEMFHDFMGBBCPBXUMIPUUYNOBDMAEGPBBHHMPAXCKWXFKEPYOGGMOHHFIGZFPUUPRAXCKQMEKITZ | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PHOENIX"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
culper-ring-v2-0097 | 998 821 804 813 814 813 800 999 998 817 804 821 804 800 811 804 803 999 107 998 813 820 812 804 817 814 820 818 999 998 818 814 821 808 804 819 999 998 800 806 804 813 819 818 999 998 807 800 803 999 998 815 804 813 804 819 817 800 819 804 803 999 100 998 807 808 806 807 804 818 819 999 998 811 804 821 804 811 818 999 ... | 998 821 804 813 814 813 800 999 998 817 804 821 804 800 811 804 803 999 107 998 813 820 812 804 817 814 820 818 999 998 818 814 821 808 804 819 999 998 800 806 804 813 819 818 999 998 807 800 803 999 998 815 804 813 804 819 817 800 819 804 803 999 100 998 807 808 806 807 804 818 819 999 998 811 804 821 804 811 818 999 ... | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 285 | 379 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0001 | BPMLQMQAKIAB | BPMLQMQAKIAB | THE DIE IS CAST | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0141 | PCIZLHHPTEZFLOPQ | PCIZLHHPTEZFLOPQ | THE WALLS HAVE EARS | four_square | four_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0241 | YBTAVNMNTNCOEMEEEDTIEUIAEELAEYAREEFSERNEAELIETFRDYRLBVOSRJTCSINEWLNHEOIDAEYDAFOIAEEENFNHLITDSCUNBAELRFPPRDVHOOIINYSEASDITKAITMADYETRYCWFMTTWSDLTCNAHENANTHAAAEADE | YBTAVNMNTNCOEMEEEDTIEUIAEELAEYAREEFSERNEAELIETFRDYRLBVOSRJTCSINEWLNHEOIDAEYDAFOIAEEENFNHLITDSCUNBAELRFPPRDVHOOIINYSEASDITKAITMADYETRYCWFMTTWSDLTCNAHENANTHAAAEADE | YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
purple-v3-0199 | YFNUCWMYRTBABKSTVKYXXOKJBONCIAJZBINGXQJCVZRPDUMNELBNYDKHYONPQLOBCRLIVJVHSJCWCKJCAINVEGEFGRYPTBLBGSOWAYPBJEQQNQWHKAYCUJBNFPCSDYEHJNEOLZLQZQOGZCTWNOTBNJVAVCGTBMMFVKYKSFXBZHX | YFNUCWMYRTBABKSTVKYXXOKJBONCIAJZBINGXQJCVZRPDUMNELBNYDKHYONPQLOBCRLIVJVHSJCWCKJCAINVEGEFGRYPTBLBGSOWAYPBJEQQNQWHKAYCUJBNFPCSDYEHJNEOLZLQZQOGZCTWNOTBNJVAVCGTBMMFVKYKSFXBZHX | THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING | purple | purple | machine | {
"type": "seed",
"value": "YAMAMOTO"
} | expert | en | 171 | 171 | cipher_museum | 2.0 | public | null | null |
zimmermann-008 | 99999 90007 90014 90011 90003 99998 99999 90015 90014 90018 90008 90019 90008 90014 90013 99998 | 99999 90007 90014 90011 90003 99998 99999 90015 90014 90018 90008 90019 90008 90014 90013 99998 | HOLD POSITION | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 80 | 95 | cipher_museum | 0.2 | public | null | null |
cda-0016474 | 20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 19 21 2 19 20 9 20 21 20 9 15 14 3 9 16 8 5 18 19 13 1 16 5 1 3 8 12 5 20 20 5 18 20 15 1 4 9 6 6 5 18 5 14 20 12 5 20 20 5 18 20 8 5 16 12 1 25 6 1 9 18 3 9 16 8 5 18 5 14 3 18 25 16 20 19 16... | 20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 19 21 2 19 20 9 20 21 20 9 15 14 3 9 16 8 5 18 19 13 1 16 5 1 3 8 12 5 20 20 5 18 20 15 1 4 9 6 6 5 18 5 14 20 12 5 20 20 5 18 20 8 5 16 12 1 25 6 1 9 18 3 9 16 8 5 18 5 14 3 18 25 16 20 19 16... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS SLOWLY | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0015286 | ... .. ... .... . .... . ..... .... .. ... ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... .... ... ... .. .... .... ... ... ... ... .... .... .... . .. .... .. ... .... . ... . ..... ... ... . .. ..... .... ... . . ..... .... .... .... .... . ..... .... ..... | ... .. ... .... . .... . ..... .... .. ... ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... .... ... ... .. .... .... ... ... ... ... .... .... .... . .. .... .. ... .... . ... . ..... ... ... . .. ..... .... ... . . ..... .... .... .... .... . ..... .... ..... | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | tap_code | tap_code | null | {} | hard | en | 143 | 143 | 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. |
typex-v2-0401 | FIUIIPJKMKFEIVFREX | FIUIIPJKMKFEIVFREX | LOOSE LIPS SINK SHIPS | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0466 | SMQFARKHFKEEMFMYHHQFLQHOFVHLVLKAMELPRTRDITHVSBGRNGQHXKBWYMBSDNMHRSEDKFFELKDTMKAKCPCQNZUZIXLPIMANSGSECZIIAQZBZISKEUEPCPLZZRECASGQCQQCKIZWYUNICGVYUFZQHXK | SMQFARKHFKEEMFMYHHQFLQHOFVHLVLKAMELPRTRDITHVSBGRNGQHXKBWYMBSDNMHRSEDKFFELKDTMKAKCPCQNZUZIXLPIMANSGSECZIIAQZBZISKEUEPCPLZZRECASGQCQQCKIZWYUNICGVYUFZQHXK | TIMES ARE BAD CHILDREN NO LONGER OBEY THEIR PARENTS AND EVERYONE IS WRITING A BOOK IT SEEMS TO ME THAT THE YOUNG HAVE ALWAYS AND WILL ALWAYS BE AN UNRULY GENERATION FULL OF FOOLISHNESS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-016 | EQZPDQUZRADOQYQZFE | EQZPDQUZRADOQYQZFE | SEND REINFORCEMENTS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-140 | APWNRMEPYNFWPSJCQ | APWNRMEPYNFWPSJCQ | CRYPTOGRAPHY RULES | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "KOREA"
} | beginner | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0864 | GMVOYRBNKLUDSQFLWEWMRYHBMYLTXIPBGSMVFPWJWXERTHXQKFSPFWKUFUOCOUQEGHZFNZNALAGGBITAJIRYLSCXCCXYPERZZWBQOBOWOVOKTXEZHLJVOZDGEPBWMSFHYAVLIXUFIKGJGBR | GMVOYRBNKLUDSQFLWEWMRYHBMYLTXIPBGSMVFPWJWXERTHXQKFSPFWKUFUOCOUQEGHZFNZNALAGGBITAJIRYLSCXCCXYPERZZWBQOBOWOVOKTXEZHLJVOZDGEPBWMSFHYAVLIXUFIKGJGBR | 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 | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0030 | DUOLCFEATZCEECEEJKAZGUXRGMVIX | DUOLCFEATZCEECEEJKAZGUXRGMVIX | TAXATION WITHOUT REPRESENTATION | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SHADOW"
} | advanced | en | 29 | 29 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0252 | EULFUEAWLIQRBKOBPRASHRLVARLMUFPVWLHDUTXJPHJQBLMMKTUEAQATUGBPMABKHARLMFQRRFPRELSFXRGAPVPASTUDWMLPBPVHLHSHILSRTABVKEAHJPSRDUOBKTXFAVHJWWWMBRATUHFUEAHJWWMULFUIUHAHSTAKADPHSTUSHDPAVHOQAXFAVRTAPARRHIPBKOADPVRAHME | EULFUEAWLIQRBKOBPRASHRLVARLMUFPVWLHDUTXJPHJQBLMMKTUEAQATUGBPMABKHARLMFQRRFPRELSFXRGAPVPASTUDWMLPBPVHLHSHILSRTABVKEAHJPSRDUOBKTXFAVHJWWWMBRATUHFUEAHJWWMULFUIUHAHSTAKADPHSTUSHDPAVHOQAXFAVRTAPARRHIPBKOADPVRAHME | 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 AND SECURE THE BLESSINGS OF LIBERTY | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 207 | 207 | cipher_museum | 2.0 | public | null | null |
vigenere-359 | DLCWFKRPAYNWJRPZGPOCLWTMNHRQMIRKHYHCXYPSZWSWYIOKWOVMBZZIOELZRVDDLYNCRGOMRDSIWYWYBSKBYVRKFLLXLCJQVLDMQWGLETIAPCWLXUSEFPZRMADQRQYRLKOTFYYLPPVQOKJAQKHN | DLCWFKRPAYNWJRPZGPOCLWTMNHRQMIRKHYHCXYPSZWSWYIOKWOVMBZZIOELZRVDDLYNCRGOMRDSIWYWYBSKBYVRKFLLXLCJQVLDMQWGLETIAPCWLXUSEFPZRMADQRQYRLKOTFYYLPPVQOKJAQKHN | 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 | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
cda-0018497 | TKIN / TSAH / BE / DZEH / AL-AN-AS-DZOH / A-KHA / MA-E / MOASI / A-KHA / TKIN / TSAH / MOASI / TKIN / BE / DZEH / TSAH / MOASI / DZEH / NA-AS-TSO-SI / DZEH / WOL-LA-CHEE / DIBEH / NO-DA-IH / GAH / DZEH / DIBEH / DIBE... | TKIN / TSAH / BE / DZEH / AL-AN-AS-DZOH / A-KHA / MA-E / MOASI / A-KHA / TKIN / TSAH / MOASI / TKIN / BE / DZEH / TSAH / MOASI / DZEH / NA-AS-TSO-SI / DZEH / WOL-LA-CHEE / DIBEH / NO-DA-IH / GAH / DZEH / DIBEH / DIBE... | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION NEVER | navajo_code | navajo_code | null | {} | hard | en | 194 | 194 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
kama-sutra-v3-0168 | JLQLYXE BXWWCQ ELM WIL WIHYM XYDR HQ X MXYHQJ UTLLB XOYCUU KYXQOL KCEECTHQJ WIL PYLXFCSW | JLQLYXE BXWWCQ ELM WIL WIHYM XYDR HQ X MXYHQJ UTLLB XOYCUU KYXQOL KCEECTHQJ WIL PYLXFCSW | GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 74 | 88 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0048 | XZOO NV RHSNZVO HLNV BVZIH ZTL MVEVI NRMW SLD OLMT KIVXRHVOB R GSLFTSG R DLFOW HZRO ZYLFG ZMW HVV GSV LXVZM | XZOO NV RHSNZVO HLNV BVZIH ZTL MVEVI NRMW SLD OLMT KIVXRHVOB R GSLFTSG R DLFOW HZRO ZYLFG ZMW HVV GSV LXVZM | CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 87 | 107 | cipher_museum | 2.0 | public | null | null |
cda-0003739 | ITYSMQIEN IWJDAHS LUKCR OXA YQVGNL SAWQNQRG MKLFGNG RNYXMJWMQRWKX CQVXUTM HGEHTELEA NGLFGNG OWFDQER MEJMFCLERWKX LRG DQFWV IWJDAH IQMJWLGM Y VQNMDQQM GUKYTA CCLR RNYXMJWMQRWKX WLHAB WZ WWWLIWVGRWG SUKMETAG ZAFRAH FNUUKUXCA HWGRNQJKFCQL | ITYSMQIEN IWJDAHS LUKCR OXA YQVGNL SAWQNQRG MKLFGNG RNYXMJWMQRWKX CQVXUTM HGEHTELEA NGLFGNG OWFDQER MEJMFCLERWKX LRG DQFWV IWJDAH IQMJWLGM Y VQNMDQQM GUKYTA CCLR RNYXMJWMQRWKX WLHAB WZ WWWLIWVGRWG SUKMETAG ZAFRAH FNUUKUXCA HWGRNQJKFCQL | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | beaufort | beaufort | null | {
"key": "KEY"
} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
bazeries-v2-0255 | RCGVCYVOYFN | RCGVCYVOYFN | HOLD THE LINE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 37
} | advanced | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
cda-0018887 | .. ... .. .... .... ... .... .... ... .... .... .. .. .... . ... . . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ... . . .... .. . ..... .... .... . ..... . . . ... .. ... . ..... .... .. .... ... ... ... ... .... .... .... ... ..... .... .. ... .... .... .... . ..... .... | .. ... .. .... .... ... .... .... ... .... .... .. .. .... . ... . . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ... . . .... .. . ..... .... .... . ..... . . . ... .. ... . ..... .... .. .... ... ... ... ... .... .... .... ... ..... .... .. ... .... .... .... . ..... .... | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX | tap_code | tap_code | null | {} | hard | en | 193 | 193 | 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. |
vic-v3-0297 | 32918992918590 | 32918992918590 | DEUS VULT | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0544 | MMFDLJAYMAGADREZXFNZWSJY | MMFDLJAYMAGADREZXFNZWSJY | NORTH STAR HOLDS FIRM COURSE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
typex-v2-0249 | UZIQWHCQOVYYBKTOEPLEFDRVRRBGQTDQRZSIIOMUHHUHHNSBQRDYCZGROHPDRFLZCQIHDHIJEAEJOBAPBZJVFOCIUQFNSRNFYPYLHHQEDFOYQTXHMEIXRMSKIHUFFOGMWQQJQHUNBAZLAGPHAZVLLBDSNAMICZPKYHE | UZIQWHCQOVYYBKTOEPLEFDRVRRBGQTDQRZSIIOMUHHUHHNSBQRDYCZGROHPDRFLZCQIHDHIJEAEJOBAPBZJVFOCIUQFNSRNFYPYLHHQEDFOYQTXHMEIXRMSKIHUFFOGMWQQJQHUNBAZLAGPHAZVLLBDSNAMICZPKYHE | HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 163 | 163 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0172 | QTYVOWOKIRINYNRYWTHOFCVUNIGMIWULOKAEGYUVCYMRYNUFIOSRGSAJRIJKZOUH | QTYVOWOKIRINYNRYWTHOFCVUNIGMIWULOKAEGYUVCYMRYNUFIOSRGSAJRIJKZOUH | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 64 | 64 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0106 | ALLWARFAREISBASEDONDECEPXIONHENCFWHENEBLETOATTACKWEMUWTSEEMUNABLEWHENUSINGOVRFORCEWWEMUSXSEEMINACTIVEWHENWEARENAARWEMUTTMAKETHEENEMYBELIEVESAAREFARAWAY | ALLWARFAREISBASEDONDECEPXIONHENCFWHENEBLETOATTACKWEMUWTSEEMUNABLEWHENUSINGOVRFORCEWWEMUSXSEEMINACTIVEWHENWEARENAARWEMUTTMAKETHEENEMYBELIEVESAAREFARAWAY | ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v2-0543 | VOMPPUMCWVYLCJJAIDDSPCCZ | VOMPPUMCWVYLCJJAIDDSPCCZ | TORPEDO AWAY ALL HANDS BRACE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CAVALRY"
} | intermediate | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
scytale-v3-0273 | TESTDOISATHOBEASFALAEFUDYTTNTLBGRTSOYDIXAEGHAVTCEXTTLRNEHASXTTAEDROSTXLYSECFUUOX | TESTDOISATHOBEASFALAEFUDYTTNTLBGRTSOYDIXAEGHAVTCEXTTLRNEHASXTTAEDROSTXLYSECFUUOX | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | scytale | scytale | transposition | {
"type": "integer",
"value": 10
} | intermediate | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0228 | BEHUXQQELARVTIWYXGEHYYRIMUSXPYMRUMQHKOKOPWUHZVIXYTUJIKOETCNITIEMUNUTAKQAJT | BEHUXQQELARVTIWYXGEHYYRIMUSXPYMRUMQHKOKOPWUHZVIXYTUJIKOETCNITIEMUNUTAKQAJT | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "YAMATO"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0008753 | CDRQ KMYS MKMZ ALAX MCDV EREI WKHI SPNG OVER EXWL VYOJ CESM EQKA NLOV BYAE BHIO ZRQK ZVRY ACKG YSRL DDWF BECQ AKUE TNAI KVNJ RYKH IFGP XDNI MYXA DXKY JLAB VSON MXPU BCFE UZCE NXMA WOVC NN | CDRQ KMYS MKMZ ALAX MCDV EREI WKHI SPNG OVER EXWL VYOJ CESM EQKA NLOV BYAE BHIO ZRQK ZVRY ACKG YSRL DDWF BECQ AKUE TNAI KVNJ RYKH IFGP XDNI MYXA DXKY JLAB VSON MXPU BCFE UZCE NXMA WOVC NN | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION ATBASH ENCODES BY REVERSING THE ALPHABET THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | beaufort | beaufort | null | {
"key": "FREEDOM"
} | hard | en | 150 | 150 | synthetic_educational | null | null | [] | |
rail-fence-de-033 | KMRGEOMAZAEIKETULNNR | KMRGEOMAZAEIKETULNNR | KEIN KOMMENTAR ZUR LAGE | rail_fence | rail_fence | transposition | {
"type": "shift",
"value": 4
} | intermediate | de | 20 | 20 | cipher_museum | 0.2 | public | null | null |
four-square-051 | CIRBXOXCCIKAHAUESPFYYGSEAFMQFYYGSEUEQVDQBAKWAFEBOLKFBROEPY | CIRBXOXCCIKAHAUESPFYYGSEAFMQFYYGSEUEQVDQBAKWAFEBOLKFBROEPY | IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE | four_square | four_square | polygraphic | {
"key1": "EXAMPLE",
"key2": "KEYWORD"
} | advanced | en | 58 | 58 | cipher_museum | 0.2 | public | null | null |
argenti-v3-0124 | 71 17 26 32 70 67 23 16 77 83 28 12 | 71 17 26 32 70 67 23 16 77 83 28 12 | GOLD FROM LEAD | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 24 | 35 | cipher_museum | 2.0 | public | null | null |
vic-v2-0210 | 28580480908860898418989185010801269048940484958185882489689894847510826585082908347858880488931908383469295688901554889591019089 | 28580480908860898418989185010801269048940484958185882489689894847510826585082908347858880488931908383469295688901554889591019089 | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | vic | vic | substitution | {
"type": "keyword",
"value": "NICKEL"
} | advanced | en | 128 | 128 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0152 | FFXGXAAAXXADDXGGGDAADDAD | FFXGXAAAXXADDXGGGDAADDAD | IN GOD WE TRUST | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
diana-v3-0239 | NAEKQNUGQYNZHOZKAGEDN | NAEKQNUGQYNZHOZKAGEDN | SONS OF LIBERTY ASSEMBLE | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "FORCES"
} | intermediate | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
affine-es-008 | CD CHKFSGDY QX ZF JFQYHTD ZF RXQLNHZGD | CD CHKFSGDY QX ZF JFQYHTD ZF RXQLNHZGD | LA LIBERTAD NO SE MENDIGA SE CONQUISTA | affine | affine | substitution | {
"type": "keyword",
"value": "7,3"
} | beginner | es | 32 | 38 | cipher_museum | 0.2 | public | null | null |
solitaire-v3-0142 | QJJSWXMGNXCRDRFYGAM | QJJSWXMGNXCRDRFYGAM | MEASURE TWICE CUT ONCE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0174 | GHTOEEADITHCNHEHSLESAEDFTATUITTEHNITRSNLNEPEARATTEILOASMHHIOOECVNETOBPSEDR | GHTOEEADITHCNHEHSLESAEDFTATUITTEHNITRSNLNEPEARATTEILOASMHHIOOECVNETOBPSEDR | GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
copiale-035 | K6 A3 T3 W2 H4 O0 D5 V6 R6 N7 H4 V0 T4 K6 H1 Q7 N7 C2 Q9 B2 M9 E9 K9 H1 K6 R8 V5 V3 W8 H1 O5 H5 N1 V6 G9 C9 K8 O5 K0 A0 D0 S6 | K6 A3 T3 W2 H4 O0 D5 V6 R6 N7 H4 V0 T4 K6 H1 Q7 N7 C2 Q9 B2 M9 E9 K9 H1 K6 R8 V5 V3 W8 H1 O5 H5 N1 V6 G9 C9 K8 O5 K0 A0 D0 S6 | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | copiale | copiale | substitution | {
"type": "keyword",
"value": "COPIALE"
} | advanced | en | 84 | 125 | cipher_museum | 0.2 | public | null | null |
kama-sutra-v2-0113 | HLXQELDLX DYA OVA BLYOL BLYOL PIQ QGLVL UZ XC BLYOL QGL KYV UZ YOQIYEEA PLHIX QGL XLNQ HYEL QGYQ ZKLLBZ JVCD QGL XCVQG KUEE PVUXH QC CIV LYVZ QGL OEYZG CJ VLZCIXMUXH YVDZ CIV PVLQGVLX YVL YEVLYMA UX QGL JULEM | HLXQELDLX DYA OVA BLYOL BLYOL PIQ QGLVL UZ XC BLYOL QGL KYV UZ YOQIYEEA PLHIX QGL XLNQ HYEL QGYQ ZKLLBZ JVCD QGL XCVQG KUEE PVUXH QC CIV LYVZ QGL OEYZG CJ VLZCIXMUXH YVDZ CIV PVLQGVLX YVL YEVLYMA UX QGL JULEM | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 169 | 208 | cipher_museum | 2.0 | public | null | null |
vernam-v3-0163 | JDIDHJYJIGIWGIKLYSYSEGDOGQBHMXXLWMOVEFFDVHBCPCSKOBYEUYVVMQNWHWEGWMKYBSODCQMZRMHO | JDIDHJYJIGIWGIKLYSYSEGDOGQBHMXXLWMOVEFFDVHBCPCSKOBYEUYVVMQNWHWEGWMKYBSODCQMZRMHO | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | vernam | vernam | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
m209-v2-0478 | RDISYEANLKAQPFURMLLYRNJMJYQOLLPRPBNFNPZPNUPKNJXIVJZPDCUQYUCVZSQAKYNPS | RDISYEANLKAQPFURMLLYRNJMJYQOLLPRPBNFNPZPNUPKNJXIVJZPDCUQYUCVZSQAKYNPS | LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
cda-0008204 | CTPLH NJBVF NHTAL HFQIW VLSVV DBUQW EHOIO UVCMZ TVOOL PKFFR HJPQQ EPEMQ ELNMD UBSMV NLUBH TMSMT WLOKB FPTBU KIVBL QUQCE NPDQQ HYBAW TBDBX TLEMV GYWMV EHSMI WSEMV KNO | CTPLH NJBVF NHTAL HFQIW VLSVV DBUQW EHOIO UVCMZ TVOOL PKFFR HJPQQ EPEMQ ELNMD UBSMV NLUBH TMSMT WLOKB FPTBU KIVBL QUQCE NPDQQ HYBAW TBDBX TLEMV GYWMV EHSMI WSEMV KNO | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | gronsfeld | gronsfeld | null | {
"key": "27183"
} | hard | en | 138 | 138 | synthetic_educational | null | null | [] | |
columnar-transposition-v3-0702 | EAGEEATECEIEOSTNRWMFABDPAOGMIEACLTDOTHFOUNOPDLNCNIOITNALEXITHTEICHRWSAONTGFU | EAGEEATECEIEOSTNRWMFABDPAOGMIEACLTDOTHFOUNOPDLNCNIOITNALEXITHTEICHRWSAONTGFU | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
caesar-v2-1569 | QCNB GUFCWY NIQULX HIHY QCNB WBULCNS ZIL UFF FYN OM VCHX OJ NBY HUNCIHM QIOHXM UHX BYUF | QCNB GUFCWY NIQULX HIHY QCNB WBULCNS ZIL UFF FYN OM VCHX OJ NBY HUNCIHM QIOHXM UHX BYUF | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | caesar | caesar | substitution | {
"type": "shift",
"value": 20
} | beginner | en | 71 | 87 | cipher_museum | 2.0 | public | null | null |
cda-0012559 | 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 19 21 2 19 20 9 20 21 20 9 15 14 3 9 16 8 5 18 19 13 1 16 5 1 3 8 12 5 20 20 5 18 20 15 1 4 9 6 6 5 18 5 14 20 12 5 20 20 5 18 | 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 19 21 2 19 20 9 20 21 20 9 15 14 3 9 16 8 5 18 19 13 1 16 5 1 3 8 12 5 20 20 5 18 20 15 1 4 9 6 6 5 18 5 14 20 12 5 20 20 5 18 | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cardano-autokey-v3-0297 | IJSERPTPNIBWBEVPTMWGBGALQMTALQMTBKCLOLNKNKWFERMTKFCVHFZVTZALTGFRXWVHTYPKZLRXKTGZUQW | IJSERPTPNIBWBEVPTMWGBGALQMTALQMTBKCLOLNKNKWFERMTKFCVHFZVTZALTGFRXWVHTYPKZLRXKTGZUQW | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
nihilist-v3-0149 | 76 39 26 28 66 66 49 84 27 35 47 67 93 56 46 29 25 26 57 54 77 72 27 59 25 48 77 49 54 56 39 29 39 53 47 63 27 56 55 78 54 56 64 57 65 35 70 66 47 45 56 38 28 37 87 48 42 27 55 39 70 65 47 56 38 25 27 39 57 56 45 27 55 59 46 56 47 72 | 76 39 26 28 66 66 49 84 27 35 47 67 93 56 46 29 25 26 57 54 77 72 27 59 25 48 77 49 54 56 39 29 39 53 47 63 27 56 55 78 54 56 64 57 65 35 70 66 47 45 56 38 28 37 87 48 42 27 55 39 70 65 47 56 38 25 27 39 57 56 45 27 55 59 46 56 47 72 | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | nihilist | nihilist | fractionation | {
"polybius": "LIBERTY",
"keyword": "FREEDOM"
} | advanced | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0232 | VZTZHNSSGFGCVLW | VZTZHNSSGFGCVLW | THE WIND IS WITH US | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0051 | ZALVMYDNDOBXUBGIBAYHWYFNAJNUHIUQDIJUGQSARECUKUCAHWOBWAERIJSUXABCYGWDVAHFIMYPUXF | ZALVMYDNDOBXUBGIBAYHWYFNAJNUHIUQDIJUGQSARECUKUCAHWOBWAERIJSUXABCYGWDVAHFIMYPUXF | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "SAKURA"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-v3-0106 | TZQZEHUHICDPOCAQFE | TZQZEHUHICDPOCAQFE | CROSS THE RUBICON NOW | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "RICHMOND"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0060 | QLZOFWLELTCRSTPATWIHPSGEGEHHCXXOQFGVNOFFQVIHPDGJTNDEQJDUCIUPPNONCXXOY | QLZOFWLELTCRSTPATWIHPSGEGEHHCXXOQFGVNOFFQVIHPDGJTNDEQJDUCIUPPNONCXXOY | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "PALACE"
} | intermediate | en | 69 | 69 | cipher_museum | 2.0 | public | null | null |
bifid-vg-0069 | SEOEETDQQQGHNTQMRCDONCHLDEEO | SEOEETDQQQGHNTQMRCDONCHLDEEO | THE MORNING STAR RISES IN THE EAST | bifid | bifid | fractionation | {
"type": "keyword",
"value": "ENIGMA"
} | advanced | en | 28 | 28 | cipher_museum | 2.0 | public | null | null |
cda-0012706 | OTAI NDAI INOT EDYC HOLQ OKEE DYCH EDAL DAIN YOTA INOT AINC TAII NCHE DYOR OROT AINO KALK AIII NOKA LOTA INYT AIIN CHEO LSHA IINQ OKEE DYDA INYO RORO KALC HOLD AIIN RAII NOKS HYOK EDYR AIIN SHAR ALSH EDYR CHEO LYTE DYQO KEED YSHA LOXE DORO ROTE DYOR ORSH EDYC HEDA LCHO LDAI INQO KEED YOKE EDYO RORO RORO TAIN LKAI INDA ... | OTAI NDAI INOT EDYC HOLQ OKEE DYCH EDAL DAIN YOTA INOT AINC TAII NCHE DYOR OROT AINO KALK AIII NOKA LOTA INYT AIIN CHEO LSHA IINQ OKEE DYDA INYO RORO KALC HOLD AIIN RAII NOKS HYOK EDYR AIIN SHAR ALSH EDYR CHEO LYTE DYQO KEED YSHA LOXE DORO ROTE DYOR ORSH EDYC HEDA LCHO LDAI INQO KEED YOKE EDYO RORO RORO TAIN LKAI INDA ... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING A TRANSPARENT TOOL SHOULD SHOW ITS REASONING SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE CAREFULLY | voynich_render | voynich_render | null | {} | hard | en | 304 | 304 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0003143 | TIGI SZXZ YDKC QPWE XVJN MZOQ UNKF AZSW JWWU IMUH GHGL SKYN PECZ RDJL XJIA CAOD TBIA TDSD YHEP SREI CUHJ X | TIGI SZXZ YDKC QPWE XVJN MZOQ UNKF AZSW JWWU IMUH GHGL SKYN PECZ RDJL XJIA CAOD TBIA TDSD YHEP SREI CUHJ X | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE ARCHITECTURE SHOULD MAKE MISUSE HARDER | trithemius | trithemius | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0021592 | 46 58 66 22 64 4 27 15 48 50 25 59 40 27 60 33 62 80 23 41 39 48 15 57 60 94 61 58 45 40 11 25 82 60 59 43 25 93 87 50 43 32 67 43 68 66 91 14 60 93 26 99 35 49 63 94 23 3 50 40 2 63 23 27 21 17 30 22 60 60 33 34 25 76 27 62 93 61 46 22 34 48 81 91 96 48 60 68 23 3 | 46 58 66 22 64 4 27 15 48 50 25 59 40 27 60 33 62 80 23 41 39 48 15 57 60 94 61 58 45 40 11 25 82 60 59 43 25 93 87 50 43 32 67 43 68 66 91 14 60 93 26 99 35 49 63 94 23 3 50 40 2 63 23 27 21 17 30 22 60 60 33 34 25 76 27 62 93 61 46 22 34 48 81 91 96 48 60 68 23 3 | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | homophonic | homophonic | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
culper-ring-v3-0057 | 103 998 808 813 805 808 813 808 819 824 999 102 998 801 804 824 814 813 803 999 100 998 805 817 814 813 819 808 804 817 999 101 998 807 820 812 800 813 999 998 810 813 814 822 811 804 803 806 804 999 998 802 800 811 811 818 999 103 998 804 800 802 807 999 998 806 804 813 804 817 800 819 808 814 813 999 998 800 813 804 ... | 103 998 808 813 805 808 813 808 819 824 999 102 998 801 804 824 814 813 803 999 100 998 805 817 814 813 819 808 804 817 999 101 998 807 820 812 800 813 999 998 810 813 814 822 811 804 803 806 804 999 998 802 800 811 811 818 999 103 998 804 800 802 807 999 998 806 804 813 804 817 800 819 808 814 813 999 998 800 813 804 ... | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 246 | 327 | cipher_museum | 2.0 | public | null | null |
alberti-disk-206 | MWFSKUODPGOBVFJ | MWFSKUODPGOBVFJ | FORWARD MARCH NOW | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 19
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
chaocipher-069 | RBLKWSURRBPVOAIAGYJGP | RBLKWSURRBPVOAIAGYJGP | SUPPLY LINE COMPROMISED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 21 | 21 | cipher_museum | 0.2 | public | null | null |
porta-v3-0050 | OATGQNZVGIXEZVLRJNHQUISRHZEWLZOFTGQNZVGIXEZNLBWNKHYWLFYFWJEJQAYEHNRY | OATGQNZVGIXEZVLRJNHQUISRHZEWLZOFTGQNZVGIXEZNLBWNKHYWLFYFWJEJQAYEHNRY | IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "NAPLES"
} | intermediate | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
caesar-158 | GUR ERCBEGF BS ZL QRNGU UNIR ORRA TERNGYL RKNTTRENGRQ | GUR ERCBEGF BS ZL QRNGU UNIR ORRA TERNGYL RKNTTRENGRQ | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | caesar | caesar | substitution | {
"type": "shift",
"value": 13
} | beginner | en | 45 | 53 | cipher_museum | 0.2 | public | null | null |
hill-v3-0388 | EHMRDNUOGVNIGTGVYIANRVCQURDMCINPDTSQTSBVTCQGLGGGYLEQOADBCOEBPDFLKQFYEBADSJ | EHMRDNUOGVNIGTGVYIANRVCQURDMCINPDTSQTSBVTCQGLGGGYLEQOADBCOEBPDFLKQFYEBADSJ | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
purple-v2-0032 | LJWEDJICUHTJY | LJWEDJICUHTJY | E PLURIBUS UNUM | purple | purple | machine | {
"type": "seed",
"value": "TOKYO"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
confederate-vigenere-061 | CBIHGBCBSHAE | CBIHGBCBSHAE | ATTACK AT DAWN | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
trifid-108 | RMBKMKSYVZMWRZRTEFGLFMXVFMRKXVRVZULUEVIJLGQLVPPFLSPVFNGT | RMBKMKSYVZMWRZRTEFGLFMXVFMRKXVRVZULUEVIJLGQLVPPFLSPVFNGT | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | trifid | trifid | fractionation | {
"type": "keyword",
"value": "CIPHER"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
vigenere-v2-0577 | WYEYSPUVTUTTHKTOBTDYEGRVVXEZHVQXSZOEWVDUBRVKEVOGDKISSTHKSECHYVRETNUZNJSRG | WYEYSPUVTUTTHKTOBTDYEGRVVXEZHVQXSZOEWVDUBRVKEVOGDKISSTHKSECHYVRETNUZNJSRG | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
m209-054 | LXYATZRFTRPJMLWXKGLKATZZLWAQFQIMBVPXAMCBDONAWSZSFFVLWXMZBLDFMA | LXYATZRFTRPJMLWXKGLKATZZLWAQFQIMBVPXAMCBDONAWSZSFFVLWXMZBLDFMA | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | m209 | m209 | machine | {
"type": "seed",
"value": "HAGELIN"
} | expert | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v2-0321 | OIDDXVZIZTGLRHMHFZBRBFTJRSYSSODUNQKROEWXIOWTBIPDUOYYENHGHDAHJRYUQCGLTMHYXYLK | OIDDXVZIZTGLRHMHFZBRBFTJRSYSSODUNQKROEWXIOWTBIPDUOYYENHGHDAHJRYUQCGLTMHYXYLK | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kryptos-v2-0494 | DUTZDYPUGEDEITCUTCIJZQHDZXSWPHFFNFEGATFNNTDFDWJEXPKBRMYTLKVIEOHAMZVJMTGLTFNNTHMZWIFWQMZFQMDPHWNSAALBTHCSQLEAKAAXRXANVFKJMWVWFBZEANBBWQGXQSJSQETGKAFLGZQDYAUGFIWFZGAT | DUTZDYPUGEDEITCUTCIJZQHDZXSWPHFFNFEGATFNNTDFDWJEXPKBRMYTLKVIEOHAMZVJMTGLTFNNTHMZWIFWQMZFQMDPHWNSAALBTHCSQLEAKAAXRXANVFKJMWVWFBZEANBBWQGXQSJSQETGKAFLGZQDYAUGFIWFZGAT | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0235 | SDAILJMBQQMLEKSQSPUA | SDAILJMBQQMLEKSQSPUA | THE COMPASS POINTS TRUE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "BRITAIN"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0457 | NWNUTSHSNCXARTAHAAAGIXTIHGENRRLRXUTEEMDAEECXRTLOAICTSLXEEAFTTTRAEXINNMISEINSXSIGACCRADXX | NWNUTSHSNCXARTAHAAAGIXTIHGENRRLRXUTEEMDAEECXRTLOAICTSLXEEAFTTTRAEXINNMISEINSXSIGACCRADXX | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | scytale | scytale | transposition | {
"type": "integer",
"value": 11
} | intermediate | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0008 | ENEMYRETREATSNORTH | ENEMYRETREATSNORTH | ENEMY RETREATS NORTH | lorenz | lorenz | machine | {
"type": "seed",
"value": "TUNNY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0147 | BFPSCUAZMKB | BFPSCUAZMKB | KNOW THYSELF | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "LIBERTY"
} | expert | en | 11 | 11 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0061 | NBEDZKGZPFDSDZKLADTUIXPCRNJEYFJZYPLPDAXWOVVOVCJUTZTJMHZPGGMSYWILLGYTABDEAYVV | NBEDZKGZPFDSDZKLADTUIXPCRNJEYFJZYPLPDAXWOVVOVCJUTZTJMHZPGGMSYWILLGYTABDEAYVV | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
kryptos-141 | EVLLJUJQMWFIKIRBMM | EVLLJUJQMWFIKIRBMM | THE BRIDGE IS SECURED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "ABSCISSA"
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
two-square-v2-0210 | DDAOCUIGNSMISSIOOHQFEACSBTRLLCTRORADOGSSLCEKRIGALOSMTHBCORAOIZEQHHICVYYEYHEHERDQOHAP | DDAOCUIGNSMISSIOOHQFEACSBTRLLCTRORADOGSSLCEKRIGALOSMTHBCORAOIZEQHHICVYYEYHEHERDQOHAP | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | two_square | two_square | polygraphic | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
hill-v2-0242 | OXTDHZTASOMCLYUPJFTAJVZVQJVRGSQPLYIYAEOXKILIHQPJQSRUDCJSHVXEPZLLQOLYFGVBXXPSBRQOJRXXLYPZNLBMDPJFJVJFQOLIJSOXUGGGVJLYFGVBXXPSYCQPLYXEOXGGOHESMDOESUPKIQTGETKWNAKIMKAE | OXTDHZTASOMCLYUPJFTAJVZVQJVRGSQPLYIYAEOXKILIHQPJQSRUDCJSHVXEPZLLQOLYFGVBXXPSBRQOJRXXLYPZNLBMDPJFJVJFQOLIJSOXUGGGVJLYFGVBXXPSYCQPLYXEOXGGOHESMDOESUPKIQTGETKWNAKIMKAE | THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
great-cipher-053 | 134 147 143 169 103 168 166 152 171 113 148 152 164 123 110 135 164 152 111 109 159 145 138 116 112 160 163 151 113 164 154 147 117 116 110 140 113 117 175 112 108 168 152 145 173 | 134 147 143 169 103 168 166 152 171 113 148 152 164 123 110 135 164 152 111 109 159 145 138 116 112 160 163 151 113 164 154 147 117 116 110 140 113 117 175 112 108 168 152 145 173 | LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "LOUIS"
} | expert | en | 135 | 179 | cipher_museum | 0.2 | public | null | null |
fialka-v2-0296 | WXXDQWIZFOSIXULUUZHVLPFATNSMUJOKFUXHCXJRLFFYVGIUYOIRHDIROVGCKFLQWZIC | WXXDQWIZFOSIXULUUZHVLPFATNSMUJOKFUXHCXJRLFFYVGIUYOIRHDIROVGCKFLQWZIC | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | fialka | fialka | machine | {
"type": "seed",
"value": "SOVIET"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0018 | TREAEGLUVNMLHEENURSY | TREAEGLUVNMLHEENURSY | TREACHERY IN THE COURT | two_square | two_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
hill-v2-0162 | HQHMKXKSCJUIOX | HQHMKXKSCJUIOX | LIBERTY OR DEATH | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
babington-014 | ⟨w04⟩ ⟨n03⟩ ⟨a04⟩ ⟨a15⟩ ⟨a16⟩ ⟨w32⟩ ⟨a02⟩ ⟨a20⟩ ⟨a07⟩ ⟨a04⟩ ⟨a04⟩ ⟨a07⟩ ⟨w32⟩ ⟨a23⟩ ⟨w15⟩ ⟨a10⟩ ⟨a15⟩ ⟨a11⟩ | ⟨w04⟩ ⟨n03⟩ ⟨a04⟩ ⟨a15⟩ ⟨a16⟩ ⟨w32⟩ ⟨a02⟩ ⟨a20⟩ ⟨a07⟩ ⟨a04⟩ ⟨a04⟩ ⟨a07⟩ ⟨w32⟩ ⟨a23⟩ ⟨w15⟩ ⟨a10⟩ ⟨a15⟩ ⟨a11⟩ | BURN AFTER READING | babington | babington | nomenclator | {
"type": "seed",
"value": "BABINGTON"
} | expert | en | 90 | 107 | cipher_museum | 0.2 | public | null | null |
lorenz-v2-0568 | THEFVNDAMENTALPROBLEMOFCOMMUNICATIONISTHATOFRFPRODUCINGATONEPOINTEITHEREXACTLYORAPPROXJMATELYAMESSAGESELECTEDATANOTHERPOINTFREQVENTLYTHEMESSAGESHAVEMEANINGANDREFERTOPHYTICALCONCEPTS | THEFVNDAMENTALPROBLEMOFCOMMUNICATIONISTHATOFRFPRODUCINGATONEPOINTEITHEREXACTLYORAPPROXJMATELYAMESSAGESELECTEDATANOTHERPOINTFREQVENTLYTHEMESSAGESHAVEMEANINGANDREFERTOPHYTICALCONCEPTS | THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS | lorenz | lorenz | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0159 | FXGFFDADVAGGDGFXGFAVDADAXA | FXGFFDADVAGGDGFXGFAVDADAXA | ANNUIT COEPTIS | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
cda-0009441 | BSWW IKUY KNGZ DXGD DCQP BZJQ FDKF AVTF ILQB CXMY Z | BSWW IKUY KNGZ DXGD DCQP BZJQ FDKF AVTF ILQB CXMY Z | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
cda-0020980 | 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 3 15 12 21 13 14 1 18... | 6 18 5 17 21 5 14 3 25 1 14 1 12 25 19 9 19 3 1 14 18 5 22 5 1 12 23 5 1 11 3 9 16 8 5 18 19 7 18 15 14 19 6 5 12 4 21 19 5 19 1 4 9 7 9 20 19 5 17 21 5 14 3 5 1 19 20 8 5 18 5 16 5 1 20 9 14 7 11 5 25 4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 3 15 12 21 13 14 1 18... | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 161 | 161 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
confederate-vigenere-v3-0234 | WZBIWXZBJYUQBLLHZB | WZBIWXZBJYUQBLLHZB | TREASURE BURIED HERE | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "DIXIE"
} | intermediate | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
cda-0012505 | 06367 05709 00328 04428 6054 5028 04727 5999 2910 06349 2846 4747 04428 1018 2919 5107 2524 1668 5679 05990 5729 1598 00336 05726 5667 00363 4409 02283 1654 03775 01648 6330 6334 01590 5700 06012 07224 02849 6321 02590 4751 6641 6361 6014 6680 0725 6050 06341 2914 6331 06680 6288 2874 4768 04451 1642 04431 6313 5665 47... | 06367 05709 00328 04428 6054 5028 04727 5999 2910 06349 2846 4747 04428 1018 2919 5107 2524 1668 5679 05990 5729 1598 00336 05726 5667 00363 4409 02283 1654 03775 01648 6330 6334 01590 5700 06012 07224 02849 6321 02590 4751 6641 6361 6014 6680 0725 6050 06341 2914 6331 06680 6288 2874 4768 04451 1642 04431 6313 5665 47... | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | zimmermann | zimmermann | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
cda-0012563 | 44 23 15 11 45 44 34 25 15 54 13 24 35 23 15 42 15 53 44 15 33 14 43 44 23 15 25 15 54 52 24 44 23 44 23 15 35 31 11 24 33 44 15 53 44 24 44 43 15 31 21 44 23 15 35 31 11 54 21 11 24 42 13 24 35 23 15 42 15 33 13 42 54 35 44 43 35 11 24 42 43 34 21 31 15 44 44 15 42 43 43 24 32 45 31 44 11 33 15 34 45 43 31 54 | 44 23 15 11 45 44 34 25 15 54 13 24 35 23 15 42 15 53 44 15 33 14 43 44 23 15 25 15 54 52 24 44 23 44 23 15 35 31 11 24 33 44 15 53 44 24 44 43 15 31 21 44 23 15 35 31 11 54 21 11 24 42 13 24 35 23 15 42 15 33 13 42 54 35 44 43 35 11 24 42 43 34 21 31 15 44 44 15 42 43 43 24 32 45 31 44 11 33 15 34 45 43 31 54 | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | polybius | polybius | null | {} | hard | en | 104 | 104 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0021673 | 8.44.2 9.47.10 1.7.14 18.50.2 4.1.9 19.39.8 5.22.2 10.32.14 14.12.6 13.45.9 8.18.1 17.35.4 6.16.5 5.42.10 4.42.13 12.22.4 9.33.1 14.20.11 1.32.8 9.6.4 9.44.7 3.5.4 6.19.2 2.11.1 13.1.1 12.17.6 19.25.2 2.26.4 8.28.7 3.31.7 5.28.10 15.49.9 16.19.8 3.7.4 4.21.6 16.35.12 12.5.1 14.41.15 8.39.12 1.42.12 19.9.11 7.31.8 19.28... | 8.44.2 9.47.10 1.7.14 18.50.2 4.1.9 19.39.8 5.22.2 10.32.14 14.12.6 13.45.9 8.18.1 17.35.4 6.16.5 5.42.10 4.42.13 12.22.4 9.33.1 14.20.11 1.32.8 9.6.4 9.44.7 3.5.4 6.19.2 2.11.1 13.1.1 12.17.6 19.25.2 2.26.4 8.28.7 3.31.7 5.28.10 15.49.9 16.19.8 3.7.4 4.21.6 16.35.12 12.5.1 14.41.15 8.39.12 1.42.12 19.9.11 7.31.8 19.28... | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE VIGENERE CIPHER USES A REPEATING KEYWORD A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH | book_cipher | book_cipher | null | {} | hard | en | 170 | 170 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
adfgx-v2-0289 | XGAGDAGGDDFAXAGDFADAAXDDDFFADGFAAGAGDAADFFAFADADADAAGADDAADDFAXDGGDXGDDFXDXGFDXFDDFGDAFADAFGDFFDFXGGDXFFXGDDFDAFGXFDAAAFAFADGDAFFGFFAAFAADADFADFDADGXA | XGAGDAGGDDFAXAGDFADAAXDDDFFADGFAAGAGDAADFFAFADADADAAGADDAADDFAXDGGDXGDDFXDXGFDXFDDFGDAFADAFGDFFDFXGGDXFFXGDDFDAFGXFDAAAFAFADGDAFFGFFAAFAADADFADFDADGXA | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | adfgx | adfgx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
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