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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
kryptos-v2-0471 | DUTEFDNGQTLDQWGVFHGMHLDQWXOZMFQFNFFLTWGSTTJFSPQEKZJTHAAWLZPNVJILBWGFEEUBKZENBDUFGY | DUTEFDNGQTLDQWGVFHGMHLDQWXOZMFQFNFFLTWGSTTJFSPQEKZJTHAAWLZPNVJILBWGFEEUBKZENBDUFGY | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
affine-v2-0154 | HRJABTN ZO KBAFONDD | HRJABTN ZO KBAFONDD | COURAGE IN DARKNESS | affine | affine | substitution | {
"a": 3,
"b": 1
} | beginner | en | 17 | 19 | cipher_museum | 2.0 | public | null | null |
nihilist-v2-0294 | 37 55 88 54 44 70 84 45 37 56 34 55 56 43 45 37 57 56 24 47 64 58 46 68 23 45 77 54 36 25 58 54 46 58 64 25 68 88 25 46 68 44 24 36 77 42 45 58 64 55 59 77 54 46 68 46 25 27 90 52 36 67 63 55 37 56 24 56 67 | 37 55 88 54 44 70 84 45 37 56 34 55 56 43 45 37 57 56 24 47 64 58 46 68 23 45 77 54 36 25 58 54 46 58 64 25 68 88 25 46 68 44 24 36 77 42 45 58 64 55 59 77 54 46 68 46 25 27 90 52 36 67 63 55 37 56 24 56 67 | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | nihilist | nihilist | fractionation | {
"polybius": "TRIUMPH",
"keyword": "JUSTICE"
} | advanced | en | 138 | 206 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0487 | DLYAHLXIBVZCVCSSBJYWASRMZOQRFQYKXWPUKEIGGZTWRLLXFSKTXEIGKETOHLWIIPZYTHTDFYDDJACKEOSDGYZQSUMRMAFRJSHBYVWXAHSQIFZXSFHQCGJLCOMHZALJCPLAUBXSWOIFIVXTQRRVWJACXFXETQFMVLCQ | DLYAHLXIBVZCVCSSBJYWASRMZOQRFQYKXWPUKEIGGZTWRLLXFSKTXEIGKETOHLWIIPZYTHTDFYDDJACKEOSDGYZQSUMRMAFRJSHBYVWXAHSQIFZXSFHQCGJLCOMHZALJCPLAUBXSWOIFIVXTQRRVWJACXFXETQFMVLCQ | 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 | kl7 | kl7 | machine | {
"type": "seed",
"value": "ALLIANCE"
} | expert | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
cda-0021762 | OFBTKBKECGFNKMKNZVFDTUZSXGRBLOGTKIWZCXXCRXKLS | OFBTKBKECGFNKMKNZVFDTUZSXGRBLOGTKIWZCXXCRXKLS | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | running_key | running_key | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
kryptos-v2-0455 | FYVEVPDUKTHNBILITNXDHDBKFQSFFNXCCIQLMPIAAXZXUIYBBDBTHKTVWCXCGYTGAWVSSHNUDWXFZ | FYVEVPDUKTHNBILITNXDHDBKFQSFFNXCCIQLMPIAAXZXUIYBBDBTHKTVWCXCGYTGAWVSSHNUDWXFZ | SUPPLY LINES HAVE BEEN CUT RATIONS FOR THREE DAYS ONLY AWAIT RESUPPLY OR BREAK THROUGH LINES | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "SANBORN"
} | advanced | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0364 | LWWHLCQLCPTDMLDPOZYOPNPAETZYSPYNPHSPYLMWPEZLEELNVHPXFDEDPPXFYLMWPHSPYFDTYRZFCQZCNPDHPXFDEDPPXTYLNETGPHSPYHPLCPYPLCHPXFDEXLVPESPPYPXJMPWTPGPHPLCPQLCLHLJ | LWWHLCQLCPTDMLDPOZYOPNPAETZYSPYNPHSPYLMWPEZLEELNVHPXFDEDPPXFYLMWPHSPYFDTYRZFCQZCNPDHPXFDEDPPXTYLNETGPHSPYHPLCPYPLCHPXFDEXLVPESPPYPXJMPWTPGPHPLCPQLCLHLJ | 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 | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 151 | 151 | cipher_museum | 2.0 | public | null | null |
cda-0019881 | SHORS HEOLO KALOT AIINA IIINQ OKEDY CHEDA LYPCH OLCHO LSHED YSHAI INQOK EDYSH ORSHE EDYCH EOLSH ARALO KEDY | SHORS HEOLO KALOT AIINA IIINQ OKEDY CHEDA LYPCH OLCHO LSHED YSHAI INQOK EDYSH ORSHE EDYCH EOLSH ARALO KEDY | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF | voynich_render | voynich_render | null | {} | hard | en | 89 | 89 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
cda-0002584 | OEHGR SBEPR JBEXF BAYLJ URAGU RXRLF CNPRV FFZNY YFRPH EVGLP YNVZF FUBHY QORGR FGRQH AQREF PEHGV ALFHO FGVGH GVBAP VCURE FZNCR NPUYR GGREG BNQVS SRERA GYRGG RE | OEHGR SBEPR JBEXF BAYLJ URAGU RXRLF CNPRV FFZNY YFRPH EVGLP YNVZF FUBHY QORGR FGRQH AQREF PEHGV ALFHO FGVGH GVBAP VCURE FZNCR NPUYR GGREG BNQVS SRERA GYRGG RE | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
bazeries-v2-0835 | PSHTLQUMBPBLHTPPHBFTAOHSOSQYITPSGGTABPSSMVBNHVMPLSAPVSMLTTLSBLPOHSMTFNHSLBVTFVM | PSHTLQUMBPBLHTPPHBFTAOHSOSQYITPSGGTABPSSMVBNHVMPLSAPVSMLTTLSBLPOHSMTFNHSLBVTFVM | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | bazeries | bazeries | transposition | {
"type": "integer",
"value": 71
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0080 | PDBNLJQNCSLAWTVSVXDHTLLKUJIDWDQSLDJLJKTDTLLDLMVTJDJPWQDOHVJMVXBIFTVVDPSQOQDLMSOJIDSDFFSLDCSUCFL | PDBNLJQNCSLAWTVSVXDHTLLKUJIDWDQSLDJLJKTDTLLDLMVTJDJPWQDOHVJMVXBIFTVVDPSQOQDLMSOJIDSDFFSLDCSUCFL | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 95 | 95 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0051 | OAJPQXEOVHZFMTUFIPEDTKKODDMMHUMHCAYYUPSZENRZYEEDIUKZJXFMJXPQOWDOTUKSNDNG | OAJPQXEOVHZFMTUFIPEDTKKODDMMHUMHCAYYUPSZENRZYEEDIUKZJXFMJXPQOWDOTUKSNDNG | 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": 4
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0386 | JQISJTPMYAQJVSJXPFFATGSJHYAQYUJQISJTBAQSJXYAQPBPIYTGJENJYGSMGYMGGFPIJBEB | JQISJTPMYAQJVSJXPFFATGSJHYAQYUJQISJTBAQSJXYAQPBPIYTGJENJYGSMGYMGGFPIJBEB | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0657 | ZBPNJFEQRIMF | ZBPNJFEQRIMF | YANKEE DOODLE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0005313 | ANQGI QIHVL VLEFW UOGSM NZNKQ AUUKW GFTHT BYMQJ FDDXL AYAKR PRQVC UIHOW PNBFE RGIMF CXSRK OBOOM AEMZY ZYDKC QFUGE EKYYG ZRQDS BFLKN ZZMZE PZPSP IKZXL ZLBYS IOINI D | ANQGI QIHVL VLEFW UOGSM NZNKQ AUUKW GFTHT BYMQJ FDDXL AYAKR PRQVC UIHOW PNBFE RGIMF CXSRK OBOOM AEMZY ZYDKC QFUGE EKYYG ZRQDS BFLKN ZZMZE PZPSP IKZXL ZLBYS IOINI D | A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | trithemius | trithemius | null | {} | hard | en | 136 | 136 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
cda-0020596 | MOIOEGAQFIRTXZWLOSICHFIMEXTQOFFYERNESELMFLULLVSTKYTXDFHBPEQSDPQAKIFWZHFZAYXYITYGTMMLQWZRMDZOFLQFUBMZOTLGOLEELKDTDMTYEYQUWCGXKLWICGMHYAMLUVW | MOIOEGAQFIRTXZWLOSICHFIMEXTQOFFYERNESELMFLULLVSTKYTXDFHBPEQSDPQAKIFWZHFZAYXYITYGTMMLQWZRMDZOFLQFUBMZOTLGOLEELKDTDMTYEYQUWCGXKLWICGMHYAMLUVW | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE BEST LESSONS SHOW WHERE THE METHOD FAILS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | running_key | running_key | null | {} | hard | en | 139 | 139 | synthetic_educational | null | null | [
"index_of_coincidence",
"probable_plaintext"
] | Running-key cipher: Vigenère with a very long key (e.g. a book passage). |
porta-v2-0372 | CQRXIJZNRQJKNQDAFOQQQFSUCQVHIUTWGNCJRFBTRKBXFVGEJPDYVISRKBIQLFVIHVRGZQANKSOCULJFRGCMCGRZSHVULSYVJFSSVJRQQTKRVZCWAJHYNEKCZEGXFVHHWBCULBTVVRAGRPRATRMRRQREVISREQMQWNEBCLQLAUTWYUCJYRKHB | CQRXIJZNRQJKNQDAFOQQQFSUCQVHIUTWGNCJRFBTRKBXFVGEJPDYVISRKBIQLFVIHVRGZQANKSOCULJFRGCMCGRZSHVULSYVJFSSVJRQQTKRVZCWAJHYNEKCZEGXFVHHWBCULBTVVRAGRPRATRMRRQREVISREQMQWNEBCLQLAUTWYUCJYRKHB | 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 | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "ITALY"
} | intermediate | en | 181 | 181 | cipher_museum | 2.0 | public | null | null |
rot13-v2-0066 | GUR SRNE BS GUR YBEQ VF GUR ORTVAAVAT BS JVFQBZ NAQ XABJYRQTR BS GUR UBYL BAR VF HAQREFGNAQVAT | GUR SRNE BS GUR YBEQ VF GUR ORTVAAVAT BS JVFQBZ NAQ XABJYRQTR BS GUR UBYL BAR VF HAQREFGNAQVAT | THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING | rot13 | rot13 | substitution | {
"type": "none",
"value": null
} | beginner | en | 77 | 94 | cipher_museum | 2.0 | public | null | null |
kryptos-v3-0236 | SQQBAVMANJUFCVLUFIZUYNPJBSG | SQQBAVMANJUFCVLUFIZUYNPJBSG | DONT FIRE TILL YOU SEE THE WHITES | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "VIRTUAL"
} | advanced | en | 27 | 27 | cipher_museum | 2.0 | public | null | null |
argenti-v3-0305 | 75 20 11 64 29 77 57 69 13 27 49 29 88 39 33 69 44 28 61 29 77 57 63 38 88 42 59 69 48 65 20 87 64 75 61 29 86 11 42 59 28 64 69 27 57 75 20 25 23 29 88 16 71 42 59 63 61 64 75 20 39 44 11 59 28 87 77 42 63 38 57 10 71 75 20 87 61 64 42 59 67 33 69 13 61 63 44 88 16 39 75 20 87 64 61 42 59 25 18 71 49 20 75 63 38 57 42... | 75 20 11 64 29 77 57 69 13 27 49 29 88 39 33 69 44 28 61 29 77 57 63 38 88 42 59 69 48 65 20 87 64 75 61 29 86 11 42 59 28 64 69 27 57 75 20 25 23 29 88 16 71 42 59 63 61 64 75 20 39 44 11 59 28 87 77 42 63 38 57 10 71 75 20 87 61 64 42 59 67 33 69 13 61 63 44 88 16 39 75 20 87 64 61 42 59 25 18 71 49 20 75 63 38 57 42... | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | argenti | argenti | nomenclator | {
"type": "seed",
"value": "VATICAN"
} | expert | en | 318 | 476 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v2-0426 | FPPYJSWNYOSCTXDTKJHZJQSROBIYNCMNFUACOECQJGDKEQFPTSHFFEXBBICSYNJRQADC | FPPYJSWNYOSCTXDTKJHZJQSROBIYNCMNFUACOECQJGDKEQFPTSHFFEXBBICSYNJRQADC | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0470 | TMILDUAKAWBVNDMIWJVCGWXHOCEGTIBBBALHSBQKRCVMALEGKRGYWFANFLPVQHRRQKJTVRWLHBVONA | TMILDUAKAWBVNDMIWJVCGWXHOCEGTIBBBALHSBQKRCVMALEGKRGYWFANFLPVQHRRQKJTVRWLHBVONA | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "VENICE"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0159 | SBITFBYWCVFNR | SBITFBYWCVFNR | ANNUIT COEPTIS | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0560 | KRILPETPKXSTVBIYQMZBJYATAMTWZJPNQBALZGPVFHZWVJOVQWFOMFKSTMAESLPMXFA | KRILPETPKXSTVBIYQMZBJYATAMTWZJPNQBALZGPVFHZWVJOVQWFOMFKSTMAESLPMXFA | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "TRIUMPH"
} | advanced | en | 67 | 67 | cipher_museum | 2.0 | public | null | null |
m209-v3-0007 | SEKZUNNJTALQNF | SEKZUNNJTALQNF | MARCH TO VICTORY | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
jn25-v3-0280 | 21244 21232 21239 21246 21249 21256 21239 21249 21230 21247 21249 21248 21239 21259 21233 21243 21244 21232 21239 21242 21249 21249 21244 21249 21230 21235 21246 21246 21239 21256 21233 21246 21236 21255 21244 21233 21244 21233 21243 21244 21232 21239 21246 21249 21256 21239 21249 21230 21231 21249 21249 21238 21244 21... | 21244 21232 21239 21246 21249 21256 21239 21249 21230 21247 21249 21248 21239 21259 21233 21243 21244 21232 21239 21242 21249 21249 21244 21249 21230 21235 21246 21246 21239 21256 21233 21246 21236 21255 21244 21233 21244 21233 21243 21244 21232 21239 21246 21249 21256 21239 21249 21230 21231 21249 21249 21238 21244 21... | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 345 | 413 | cipher_museum | 2.0 | public | null | null |
pigpen-v3-0027 | ╳ ┬ ┼ ¬ ┤• ├• ┌• ⌐ ╲ ╲ ┌• ┤• ┐ ┼• ╳ ╲ ╳ ┐• ╱ ┼ | ╳ ┬ ┼ ¬ ┤• ├• ┌• ⌐ ╲ ╲ ┌• ┤• ┐ ┼• ╳ ╲ ╳ ┐• ╱ ┼ | THE COMPASS POINTS TRUE | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 27 | 46 | cipher_museum | 2.0 | public | null | null |
cda-0018835 | .... .... ..... .. ... .... .... ... .... . .... ..... . . .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .... ... . .... .. .... .. .. .... .. . . ... ..... .. ... .... ... ..... .. .. .... .... .... .. ... ... | .... .... ..... .. ... .... .... ... .... . .... ..... . . .... .. . ..... . ... .. .... ... ..... .. ... . ..... .... .. . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .... ... . .... .. .... .. .. .... .. . . ... ..... .. ... .... ... ..... .. .. .... .... .... .. ... ... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | tap_code | tap_code | null | {} | hard | en | 114 | 114 | 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. |
navajo-code-v2-0021 | BA-AH-NE-DI-TININ A-CHIN A-KHA GLOE-IH / A-WOH LIN TSAH-AS-ZIH KLESH DZEH AH-JAD MA-E | BA-AH-NE-DI-TININ A-CHIN A-KHA GLOE-IH / A-WOH LIN TSAH-AS-ZIH KLESH DZEH AH-JAD MA-E | KNOW THYSELF | navajo_code | navajo_code | code | {
"type": "none",
"value": null
} | expert | en | 74 | 89 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-020 | 90 27 10 88 21 19 84 59 77 52 65 38 81 91 90 10 33 82 71 78 91 | 90 27 10 88 21 19 84 59 77 52 65 38 81 91 90 10 33 82 71 78 91 | CRYPTOGRAPHY RULES | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "WALLIS"
} | expert | en | 42 | 62 | cipher_museum | 0.2 | public | null | null |
cda-0002500 | RG RHHXGE LXIYEO RIINXEF R NXGERO HDGLZXKG ZK ERLY NEZZEO ZYE ZOXZYEVXDF LXIYEO RUBRGLEF ZYE RNIYRAEZ AC KGE IKFXZXKG ERLY NEZZEO ZYE HKDO FMDROE LXIYEO DFEF ZQK TECQKOU IKNCAXDF FMDROEF YXNN LXIYEO DFEF NXGERO RNWEAOR ZK EGLOCIZ ANKLTF KH NEZZEOF | RG RHHXGE LXIYEO RIINXEF R NXGERO HDGLZXKG ZK ERLY NEZZEO ZYE ZOXZYEVXDF LXIYEO RUBRGLEF ZYE RNIYRAEZ AC KGE IKFXZXKG ERLY NEZZEO ZYE HKDO FMDROE LXIYEO DFEF ZQK TECQKOU IKNCAXDF FMDROEF YXNN LXIYEO DFEF NXGERO RNWEAOR ZK EGLOCIZ ANKLTF KH NEZZEOF | AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | monoalphabetic | monoalphabetic | null | {
"alphabet": "RALUEHWYXSTNVGKIMOFZDBQPCJ"
} | hard | en | 208 | 208 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
vic-v2-0078 | 864919289808390389839191808683869108024868292482801818549108085491836904867839190604894691808990489809189834868228090486768389628090 | 864919289808390389839191808683869108024868292482801818549108085491836904867839190604894691808990489809189834868228090486768389628090 | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | vic | vic | substitution | {
"type": "keyword",
"value": "HOLLOW"
} | advanced | en | 132 | 132 | cipher_museum | 2.0 | public | null | null |
caesar-v2-0298 | BMFY NX NS F SFRJ YMFY BMNHM BJ HFQQ F WTXJ GD FSD TYMJW SFRJ BTZQI XRJQQ FX XBJJY | BMFY NX NS F SFRJ YMFY BMNHM BJ HFQQ F WTXJ GD FSD TYMJW SFRJ BTZQI XRJQQ FX XBJJY | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | caesar | caesar | substitution | {
"type": "shift",
"value": 5
} | beginner | en | 64 | 82 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-1016 | QOEBVVSABMFIPMWNWETKKNHUXOCXQYJBVIVNFAXAQRYYJLWPEUWGGBCGCUFWPWQJHKHCTGNMAGBJIOCWEL | QOEBVVSABMFIPMWNWETKKNHUXOCXQYJBVIVNFAXAQRYYJLWPEUWGGBCGCUFWPWQJHKHCTGNMAGBJIOCWEL | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
adfgvx-136 | ADDFAFAAFAFAADXXDVDGVGGVVDFFDAFADAAA | ADDFAFAAFAFAADXXDVDGVGGVVDFFDAFADAAA | SEND REINFORCEMENTS | adfgvx | adfgvx | fractionation | {
"polybius": "SECRET",
"columnar": "AGENTS"
} | advanced | en | 36 | 36 | cipher_museum | 0.2 | public | null | null |
cda-0006156 | UBIDEISENRINRWSAYEHTINIUFXSTIPBCOTQSMPHTHALCIBOAEIXPRSOO | UBIDEISENRINRWSAYEHTINIUFXSTIPBCOTQSMPHTHALCIBOAEIXPRSOO | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | double_transposition | double_transposition | null | {
"key1": "JUSTICE",
"key2": "FREEDOM"
} | medium | en | 56 | 56 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
m209-v3-0184 | WJSXPJONWGRCQTSIYSTUXYQAYZFLVXLWOXKYRWWKQSNZMKPQERAORKFZIDPYXIPERKOJMZALUSJWYYVYQA | WJSXPJONWGRCQTSIYSTUXYQAYZFLVXLWOXKYRWWKQSNZMKPQERAORKFZIDPYXIPERKOJMZALUSJWYYVYQA | HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 82 | 82 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0193 | 41 44 37 82 83 60 20 71 72 25 44 41 25 89 71 17 32 84 67 83 28 66 20 12 37 18 83 82 20 63 65 83 44 28 25 32 66 18 20 83 63 56 37 82 28 44 12 32 63 67 15 25 20 75 22 81 28 75 59 13 23 44 66 18 83 70 63 34 20 17 27 12 83 20 33 | 41 44 37 82 83 60 20 71 72 25 44 41 25 89 71 17 32 84 67 83 28 66 20 12 37 18 83 82 20 63 65 83 44 28 25 32 66 18 20 83 63 56 37 82 28 44 12 32 63 67 15 25 20 75 22 81 28 75 59 13 23 44 66 18 83 70 63 34 20 17 27 12 83 20 33 | IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP | argenti | argenti | nomenclator | {
"type": "seed",
"value": "PAPAL"
} | expert | en | 150 | 224 | cipher_museum | 2.0 | public | null | null |
porta-v2-0505 | EZYYXXRDUUKE | EZYYXXRDUUKE | THE DIE IS CAST | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "FLORENT"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0373 | FYYRSGUCXOIAJNPIFHGHZQDOJIYQNGPJDCQLFULOGTUEQNMAFITXOGOFBIBANIIWCRJEHTVHLPDK | FYYRSGUCXOIAJNPIFHGHZQDOJIYQNGPJDCQLFULOGTUEQNMAFITXOGOFBIBANIIWCRJEHTVHLPDK | AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 10
} | expert | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
m209-v3-0366 | JWZMOTGMWWRXQZDBMLFLGWNNKVZJMVJSPUQACIUSXNYOMXNPASZPLOAQPRLWVQYEKCTR | JWZMOTGMWWRXQZDBMLFLGWNNKVZJMVJSPUQACIUSXNYOMXNPASZPLOAQPRLWVQYEKCTR | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | m209 | m209 | machine | {
"type": "seed",
"value": "VICTORY"
} | expert | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
slidex-036 | AMYNWBKZUUHBBNOUCKQPWWCJKCXYWTQPWHVYWTFUKYRVTFQLBHOA | AMYNWBKZUUHBBNOUCKQPWWCJKCXYWTQPWHVYWTFUKYRVTFQLBHOA | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | slidex | slidex | transposition | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 52 | 52 | cipher_museum | 0.2 | public | null | null |
chaocipher-v3-0220 | PLMDQDVR | PLMDQDVR | DEUS VULT | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 8 | 8 | cipher_museum | 2.0 | public | null | null |
solitaire-038 | LBKJVHLJPIFRJMKMPUMWXVVZUNYMXOERCUPGLLHFSHGID | LBKJVHLJPIFRJMKMPUMWXVVZUNYMXOERCUPGLLHFSHGID | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | solitaire | solitaire | stream | {
"type": "none",
"value": null
} | expert | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
kryptos-v2-0139 | WEKIUZGKFHHWV | WEKIUZGKFHHWV | STAY THE COURSE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
chaocipher-048 | QWDKIEYXAFPWQCHVUQCSCTFVOSKDHAKLBEJAZSQLULQCNDXHRXITEDPR | QWDKIEYXAFPWQCHVUQCSCTFVOSKDHAKLBEJAZSQLULQCNDXHRXITEDPR | IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "CHAOCIPHER"
} | advanced | en | 56 | 56 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v2-1034 | UREOYYDOEEPRKRDPW | UREOYYDOEEPRKRDPW | KEEP YOUR POWDER DRY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
vigenere-v3-0125 | YVVIIMFLNBXIIIKKHVRGXIKSQZ | YVVIIMFLNBXIIIKKHVRGXIKSQZ | THE PRINTING PRESS CHANGES ALL | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "FORTRESS"
} | intermediate | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0204 | 90 81 18 37 47 30 91 90 79 66 54 15 53 91 90 84 81 91 90 88 85 40 54 45 84 25 66 91 90 85 61 35 91 90 15 44 63 91 90 75 25 18 53 45 91 90 47 67 18 54 15 84 81 82 91 90 40 54 11 66 47 77 91 90 45 85 91 90 73 25 27 74 76 81 75 63 91 90 53 58 85 55 76 91 90 12 25 27 69 18 20 41 74 63 66 15 91 90 47 45 91 90 33 18 23 81 91 | 90 81 18 37 47 30 91 90 79 66 54 15 53 91 90 84 81 91 90 88 85 40 54 45 84 25 66 91 90 85 61 35 91 90 15 44 63 91 90 75 25 18 53 45 91 90 47 67 18 54 15 84 81 82 91 90 40 54 11 66 47 77 91 90 45 85 91 90 73 25 27 74 76 81 75 63 91 90 53 58 85 55 76 91 90 12 25 27 69 18 20 41 74 63 66 15 91 90 47 45 91 90 33 18 23 81 91 | NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 214 | 320 | cipher_museum | 2.0 | public | null | null |
cda-0015713 | troop house exact right alert intel light final eight naval cross eight claim intel point holds eight route width right incur three enemy seeks troop | troop house exact right alert intel light final eight naval cross eight claim intel point holds eight route width right incur three enemy seeks troop | THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN | 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. |
porta-v2-0660 | CVLQJTTANMXFMUWNNMR | CVLQJTTANMXFMUWNNMR | WISDOM GUARDS THE GATE | porta | porta | polyalphabetic | {
"type": "keyword",
"value": "PAPAL"
} | intermediate | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
bifid-v3-0236 | ABYCIETNKBNDDAZ | ABYCIETNKBNDDAZ | THE FACTORY ROARS | bifid | bifid | fractionation | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
cda-0007013 | EOVUSUE TMJCFDRG JDTWKNVEKRX IO C GMXZYQKEEUBB | EOVUSUE TMJCFDRG JDTWKNVEKRX IO C GMXZYQKEEUBB | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION | trithemius | trithemius | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [] | |
cda-0022158 | GSV ZIXSRGVXGFIV HSLFOW NZPV NRHFHV SZIWVI XIBKGLTIZKSB IVDZIWH KZGRVMXV ZMW XZIVUFO GSRMPRMT GSV RMWVC LU XLRMXRWVMXV RH Z FHVUFO XOFV XZVHZI HSRUGVW GSV ZOKSZYVG YB GSIVV KLHRGRLMH | GSV ZIXSRGVXGFIV HSLFOW NZPV NRHFHV SZIWVI XIBKGLTIZKSB IVDZIWH KZGRVMXV ZMW XZIVUFO GSRMPRMT GSV RMWVC LU XLRMXRWVMXV RH Z FHVUFO XOFV XZVHZI HSRUGVW GSV ZOKSZYVG YB GSIVV KLHRGRLMH | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE INDEX OF COINCIDENCE IS A USEFUL CLUE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | atbash | atbash | null | {} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"self_inverse_check",
"frequency_analysis"
] | Atbash maps A↔Z, B↔Y, … and is its own inverse. |
typex-v2-0017 | HNXXQRHIYJVGEITPRDO | HNXXQRHIYJVGEITPRDO | CODED MESSAGE FOLLOWS | typex | typex | machine | {
"type": "keyword",
"value": "LONDON"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v3-0321 | JWFVWJMFLGUSWKSJ | JWFVWJMFLGUSWKSJ | RENDER UNTO CAESAR | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "DYNASTY"
} | beginner | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-1106 | RAUSIEUPSMELGLEAEEURSLBIPEELPTOOBEDERNLLEUMRAETLNMRJUESLTNPURUSOLESIUEVVITSTHI | RAUSIEUPSMELGLEAEEURSLBIPEELPTOOBEDERNLLEUMRAETLNMRJUESLTNPURUSOLESIUEVVITSTHI | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
alberti-disk-v3-0529 | XJZRQDVBVCJIPVRE | XJZRQDVBVCJIPVRE | RENDER UNTO CAESAR | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 14
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
nomenclator-v2-0221 | 60 03 09 16 08 05 18 04 09 19 11 23 01 19 09 14 22 05 14 20 05 04 02 25 12 05 15 14 02 01 20 20 09 19 20 01 01 12 02 05 18 20 09 01 18 05 14 01 09 19 19 01 14 03 05 01 18 03 08 09 20 05 03 20 61 07 18 05 01 20 08 21 13 01 14 09 19 20 | 60 03 09 16 08 05 18 04 09 19 11 23 01 19 09 14 22 05 14 20 05 04 02 25 12 05 15 14 02 01 20 20 09 19 20 01 01 12 02 05 18 20 09 01 18 05 14 01 09 19 19 01 14 03 05 01 18 03 08 09 20 05 03 20 61 07 18 05 01 20 08 21 13 01 14 09 19 20 | THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST | nomenclator | nomenclator | nomenclator | {
"type": "seed",
"value": "PALACE"
} | expert | en | 156 | 233 | cipher_museum | 2.0 | public | null | null |
cda-0015848 | 68 17 33 79 49 57 23 81 48 34 22 87 66 63 17 33 34 14 43 22 50 1 34 22 63 48 27 60 93 15 57 80 48 41 78 76 3 64 23 58 58 76 34 87 76 3 58 22 35 91 49 72 70 1 81 52 52 23 60 48 35 91 66 45 81 27 34 22 46 14 15 52 1 40 33 70 25 82 39 60 72 11 48 35 14 34 23 50 41 43 25 23 40 11 68 88 33 25 3 93 25 17 22 40 66 14 50 35 49... | 68 17 33 79 49 57 23 81 48 34 22 87 66 63 17 33 34 14 43 22 50 1 34 22 63 48 27 60 93 15 57 80 48 41 78 76 3 64 23 58 58 76 34 87 76 3 58 22 35 91 49 72 70 1 81 52 52 23 60 48 35 91 66 45 81 27 34 22 46 14 15 52 1 40 33 70 25 82 39 60 72 11 48 35 14 34 23 50 41 43 25 23 40 11 68 88 33 25 3 93 25 17 22 40 66 14 50 35 49... | THE VIGENERE CIPHER USES A REPEATING KEYWORD ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | homophonic | homophonic | null | {} | hard | en | 155 | 155 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
trifid-v3-0517 | TDVWTSTWXFJDZBEBDNKEAJMTKJFWZXQDFEARFVWTSTN+PTYMUEWDBFAXR+PSJIBKLTFWXBPGXFW+AADJTPRWSTBRKMTFIPTZRLJFLPMBVJ+VSTDSKLLAFQOFTHXCTPTHBDTKAQORXESVBCQOZDEKTBRUIJFWBSQFBAFS | TDVWTSTWXFJDZBEBDNKEAJMTKJFWZXQDFEARFVWTSTN+PTYMUEWDBFAXR+PSJIBKLTFWXBPGXFW+AADJTPRWSTBRKMTFIPTZRLJFLPMBVJ+VSTDSKLLAFQOFTHXCTPTHBDTKAQORXESVBCQOZDEKTBRUIJFWBSQFBAFS | IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS | trifid | trifid | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 164 | 164 | cipher_museum | 2.0 | public | null | null |
trifid-v3-0044 | URCDHIBCZVFNPJDDE | URCDHIBCZVFNPJDDE | THE RAILWAY ARRIVES | trifid | trifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 17 | 17 | cipher_museum | 2.0 | public | null | null |
cda-0002857 | NJNLJQJJLLVG YWPALBX LLHUACYH APB NAUWXKE HESPUHNF HVA DWTICYL ELI VWMXHN BKW NXH KANGUW CR PVGSPA NSWTYN PLWPUAX A ASPAPJ GGPCWSXN JQ LAJT RAWHHJ | NJNLJQJJLLVG YWPALBX LLHUACYH APB NAUWXKE HESPUHNF HVA DWTICYL ELI VWMXHN BKW NXH KANGUW CR PVGSPA NSWTYN PLWPUAX A ASPAPJ GGPCWSXN JQ LAJT RAWHHJ | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE MESSAGE WAS HIDDEN BUT NOT SECURE AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | beaufort | beaufort | null | {
"key": "PALACE"
} | hard | en | 124 | 124 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
jn25-v2-0199 | 09908 09996 09993 09907 09993 09991 09906 09993 09908 09903 09994 09995 09993 09908 09908 09997 09902 09995 09999 09996 09993 09999 09992 09997 09907 09995 09993 09908 09908 09997 09902 09995 09907 09908 09999 09906 09908 09993 09992 09903 09902 09993 09907 09908 09993 09904 09999 09908 09999 09908 09997 09901 09993 09... | 09908 09996 09993 09907 09993 09991 09906 09993 09908 09903 09994 09995 09993 09908 09908 09997 09902 09995 09999 09996 09993 09999 09992 09997 09907 09995 09993 09908 09908 09997 09902 09995 09907 09908 09999 09906 09908 09993 09992 09903 09902 09993 09907 09908 09993 09904 09999 09908 09999 09908 09997 09901 09993 09... | THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 365 | 437 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0305 | T4 R0 V3 M1 I2 V7 E1 O2 N1 J3 J6 N2 X4 W9 B8 C1 S9 U2 J4 I2 J3 A7 P6 K6 A7 K8 I4 A1 P9 B8 I4 F5 G1 O7 G1 O2 U0 D8 Y8 I4 R7 A2 A1 G3 G2 W2 W4 R9 J6 L0 X4 D4 M7 O7 W6 K2 M1 A2 O7 U9 A3 J9 Q5 Q1 Q5 K2 G3 K8 D6 W5 G2 D4 U1 W2 Q1 F9 A2 G1 Y8 W6 R9 B8 I2 J0 M1 E6 G4 E1 V8 D0 K8 Q1 D6 J4 A2 K8 U9 R9 U6 U1 J6 W6 V0 F9 J9 E1 K8... | T4 R0 V3 M1 I2 V7 E1 O2 N1 J3 J6 N2 X4 W9 B8 C1 S9 U2 J4 I2 J3 A7 P6 K6 A7 K8 I4 A1 P9 B8 I4 F5 G1 O7 G1 O2 U0 D8 Y8 I4 R7 A2 A1 G3 G2 W2 W4 R9 J6 L0 X4 D4 M7 O7 W6 K2 M1 A2 O7 U9 A3 J9 Q5 Q1 Q5 K2 G3 K8 D6 W5 G2 D4 U1 W2 Q1 F9 A2 G1 Y8 W6 R9 B8 I2 J0 M1 E6 G4 E1 V8 D0 K8 Q1 D6 J4 A2 K8 U9 R9 U6 U1 J6 W6 V0 F9 J9 E1 K8... | THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 318 | 476 | cipher_museum | 2.0 | public | null | null |
cda-0005712 | TSCQ WUUZ QCSZ ZPWE XVJL LZWO PZNH GOIY ZLZB GTFU CJJJ MUMO EQSS IPPV IHAY QCIN XNWB IJZH OGZY CSET VHHZ TKMA CNDH HXDP JHOO AZGO HFTV VJGK IPBT PVBP FIWL WMEY CCGF QPIY XPKY KEFR FC | TSCQ WUUZ QCSZ ZPWE XVJL LZWO PZNH GOIY ZLZB GTFU CJJJ MUMO EQSS IPPV IHAY QCIN XNWB IJZH OGZY CSET VHHZ TKMA CNDH HXDP JHOO AZGO HFTV VJGK IPBT PVBP FIWL WMEY CCGF QPIY XPKY KEFR FC | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN | trithemius | trithemius | null | {} | hard | en | 146 | 146 | synthetic_educational | null | null | [
"progressive_shift_detection",
"frequency_analysis"
] | Trithemius: progressive Caesar (shift = letter position); no key needed. |
confederate-vigenere-v3-0317 | KHIAHPHPEJNACIPS | KHIAHPHPEJNACIPS | SOUND THE TRUMPETS | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0192 | FYMJFDOFCPKHZYXBXRBRRCJEBLUSJFBWMLBNLDTNALTVKRIAQVKETMZIZPJIENWATTTMIZVQQFKHUINDWID | FYMJFDOFCPKHZYXBXRBRRCJEBLUSJFBWMLBNLDTNALTVKRIAQVKETMZIZPJIENWATTTMIZVQQFKHUINDWID | DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0332 | 101 140 122 158 168 154 142 126 133 141 172 140 121 101 121 140 178 141 132 111 171 119 178 156 118 180 118 101 140 131 125 152 182 146 136 142 176 156 170 140 101 131 132 101 107 142 128 159 125 138 170 132 157 134 106 154 119 125 178 176 175 | 101 140 122 158 168 154 142 126 133 141 172 140 121 101 121 140 178 141 132 111 171 119 178 156 118 180 118 101 140 131 125 152 182 146 136 142 176 156 170 140 101 131 132 101 107 142 128 159 125 138 170 132 157 134 106 154 119 125 178 176 175 | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "FRANCE"
} | expert | en | 183 | 243 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0840 | LOQZQFEIHBJUJRZUXKVIPNKVFEBPJJSPWVYIJPJFOEYLXEPOZNUIQXYDPWUFHFKVZMUKPFUFNBBPSVKQFTU | LOQZQFEIHBJUJRZUXKVIPNKVFEBPJJSPWVYIJPJFOEYLXEPOZNUIQXYDPWUFHFKVZMUKPFUFNBBPSVKQFTU | KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 83 | 83 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0053 | 140 178 165 175 131 170 168 172 127 166 163 170 112 102 174 165 100 152 159 129 171 179 133 145 106 174 171 178 167 167 175 172 136 176 171 134 159 118 138 175 117 166 172 124 152 143 131 119 138 161 177 166 174 108 178 131 166 151 137 149 171 173 167 129 171 | 140 178 165 175 131 170 168 172 127 166 163 170 112 102 174 165 100 152 159 129 171 179 133 145 106 174 171 178 167 167 175 172 136 176 171 134 159 118 138 175 117 166 172 124 152 143 131 119 138 161 177 166 174 108 178 131 166 151 137 149 171 173 167 129 171 | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 195 | 259 | cipher_museum | 2.0 | public | null | null |
vigenere-fr-025 | NZZTKHGVEPEWVVDGTHGILXMS | NZZTKHGVEPEWVVDGTHGILXMS | LIBERTE EGALITE FRATERNITE | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "CRYPTO"
} | intermediate | fr | 24 | 24 | cipher_museum | 0.2 | public | null | null |
sigaba-091 | XSVJVUILYERJNMWRUFDSVVKSRSQSNYCDNKEMXNXCLKXPRLWVXNKFDCTIJ | XSVJVUILYERJNMWRUFDSVVKSRSQSNYCDNKEMXNXCLKXPRLWVXNKFDCTIJ | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL | sigaba | sigaba | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
diana-v3-0540 | DGHQDLQXJOTF | DGHQDLQXJOTF | GOLD FROM LEAD | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "JUSTICE"
} | intermediate | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0004260 | TPIP RAES OBUT EPTE LBAF CCTO UBRL THAT HTSU WTNE HOOR ASNE AGTI TTIE IDEI YELS RLYR EEAU COIM OOIS TEER RCIN STIS RLRH UTNN ESRA NKID EX | TPIP RAES OBUT EPTE LBAF CCTO UBRL THAT HTSU WTNE HOOR ASNE AGTI TTIE IDEI YELS RLYR EEAU COIM OOIS TEER RCIN STIS RLRH UTNN ESRA NKID EX | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | stager_route | stager_route | null | {
"cols": 5
} | hard | en | 110 | 110 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
cda-0002098 | DBLXVMNPMWIMDDFYGIXWPIFDIHCDIUPRKWUIPQRFAWVBPKCDTZAAKGOSAFESRJWNBUSAII | DBLXVMNPMWIMDDFYGIXWPIFDIHCDIUPRKWUIPQRFAWVBPKCDTZAAKGOSAFESRJWNBUSAII | OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE A STRONG CLAIM NEEDS STRONG EVIDENCE | autokey | autokey | null | {
"primer": "PATTERN"
} | medium | en | 70 | 70 | synthetic_educational | null | null | [
"running_key_analysis",
"index_of_coincidence"
] | Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack. |
stager-route-v3-0057 | TYDINEATICCKETAOINHRNAHONGLOOEDNFBFFWLEANNSLHREINYOUETEEWRODMNOITNTAGEAX | TYDINEATICCKETAOINHRNAHONGLOOEDNFBFFWLEANNSLHREINYOUETEEWRODMNOITNTAGEAX | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | stager_route | stager_route | transposition | {
"type": "integer",
"value": 9
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0185 | PFFJUUWXSANSTIFWKHXJWBFEYMXPTZWWBMZZIAFJXGIMZWFKMXHLGPOHHUIGIQRRJJXKUKOB | PFFJUUWXSANSTIFWKHXJWBFEYMXPTZWWBMZZIAFJXGIMZWFKMXHLGPOHHUIGIQRRJJXKUKOB | WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0114 | PRETARSAASDPAEAR | PRETARSAASDPAEAR | PER ASPERA AD ASTRA | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 8
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-195 | ADTVRTBWBOFKOVF | ADTVRTBWBOFKOVF | OPERATION BEGINS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
great-cipher-v2-0178 | 100 107 176 179 148 100 108 134 167 164 140 143 146 107 120 160 144 146 114 154 103 100 173 177 100 112 126 158 125 153 125 114 128 166 161 166 138 107 149 179 151 182 147 170 114 114 163 136 156 165 173 109 150 | 100 107 176 179 148 100 108 134 167 164 140 143 146 107 120 160 144 146 114 154 103 100 173 177 100 112 126 158 125 153 125 114 128 166 161 166 138 107 149 179 151 182 147 170 114 114 163 136 156 165 173 109 150 | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 159 | 211 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0005 | 920732028676202273203910 | 920732028676202273203910 | CAVALRY ADVANCES | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
cda-0020415 | 94 59 50 68 76 3 93 35 2 96 35 49 63 94 48 3 43 82 58 33 91 22 27 21 94 23 3 50 99 45 60 63 34 26 60 33 21 68 49 26 81 25 17 33 4 48 50 43 82 24 22 86 2 50 17 49 52 62 23 70 67 32 91 70 72 25 43 23 35 32 3 48 | 94 59 50 68 76 3 93 35 2 96 35 49 63 94 48 3 43 82 58 33 91 22 27 21 94 23 3 50 99 45 60 63 34 26 60 33 21 68 49 26 81 25 17 33 4 48 50 43 82 24 22 86 2 50 17 49 52 62 23 70 67 32 91 70 72 25 43 23 35 32 3 48 | HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION THE MESSAGE WAS HIDDEN BUT NOT SECURE | homophonic | homophonic | null | {} | medium | en | 72 | 72 | synthetic_educational | null | null | [
"frequency_analysis",
"multiple_ciphertext_attack"
] | Homophonic substitution: each letter maps to multiple possible numbers. |
wheatstone-v3-0010 | KRNTOKRNTTGTOQNT | KRNTOKRNTTGTOQNT | PER ASPERA AD ASTRA | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0019733 | WOLL ACHE ETHA NZIE SHUS HWOL LACH EEDI BEHL INDZ EHTS AHMO ASIA KHAB EDZE HDIB EHSH USHT SAHA SZIH GAHD ZEHA KEHD IGLI NIDZ EHGA HDIB EHTK INTS AHAH JAHT HANZ IELI NDZE HWOL LACH EEDI BEHY AZZI ECLA GIAI HLIN WOLL ACHE ESHU SHDZ EHTH ANZI E | WOLL ACHE ETHA NZIE SHUS HWOL LACH EEDI BEHL INDZ EHTS AHMO ASIA KHAB EDZE HDIB EHSH USHT SAHA SZIH GAHD ZEHA KEHD IGLI NIDZ EHGA HDIB EHTK INTS AHAH JAHT HANZ IELI NDZE HWOL LACH EEDI BEHY AZZI ECLA GIAI HLIN WOLL ACHE ESHU SHDZ EHTH ANZI E | ATBASH ENCODES BY REVERSING THE ALPHABET | navajo_code | navajo_code | null | {} | hard | en | 193 | 193 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
cda-0012067 | X X· ¬ X K Γ· K X· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌ ⌐ ┐· L ⌐ r r· └ L K K L ┌· K ┘· ⌐ Γ Γ· ⌐· ⌐· L ┌· L ─ K └ L K K L ┌· ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L r ┌· ⌒· ┐· K X Γ· K X L └ ⌐· | X X· ¬ X K Γ· K X· K Γ· ┘· ─ r Γ· ┐· r· L ┌· X ┌ ⌐ ┐· L ⌐ r r· └ L K K L ┌· K ┘· ⌐ Γ Γ· ⌐· ⌐· L ┌· L ─ K └ L K K L ┌· ¬ L ⌐ X· ⌐· ┘· ┌· K Γ· X K r· L ┌· L r Γ· ┐· ┌· ┘· r ⌐ └ ┘· ⌐· K· Γ· ¬· L ─ L ┌· L ⌐ ─ Γ Γ L r ┌· ⌒· ┐· K X Γ· K X L └ ⌐· | SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | pigpen | pigpen | null | {} | medium | en | 47 | 47 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0002140 | TTRGW BNAEA TTFSE RTIOY TRAEI NITSI ESIRA ORLTT HRCRR NIILM CSSEM EESSR CEIHE ENNSC ATOTP IYOSO DANTX XAGTM UIFPP LUUTR IPOPR ETTAH TLMSA ETTXX IHDNL UESEY ISRAH SIENS UOFRP TLYEK FSX | TTRGW BNAEA TTFSE RTIOY TRAEI NITSI ESIRA ORLTT HRCRR NIILM CSSEM EESSR CEIHE ENNSC ATOTP IYOSO DANTX XAGTM UIFPP LUUTR IPOPR ETTAH TLMSA ETTXX IHDNL UESEY ISRAH SIENS UOFRP TLYEK FSX | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | stager_route | stager_route | null | {
"cols": 9
} | hard | en | 153 | 153 | synthetic_educational | null | null | [
"column_count_search",
"route_pattern_search"
] | Route (Stager) cipher: write into rectangle, read via alternating column route. |
jn25-v2-0270 | 21235 21257 21235 21233 21244 21247 21259 21243 21233 21231 21248 21235 21246 | 21235 21257 21235 21233 21244 21247 21259 21243 21233 21231 21248 21235 21246 | AWAIT MY SIGNAL | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 65 | 77 | cipher_museum | 2.0 | public | null | null |
double-transposition-v3-0147 | EDRLMGSRVSEILEAEEYECCA | EDRLMGSRVSEILEAEEYECCA | MESSAGE RECEIVED CLEARLY | double_transposition | double_transposition | transposition | {
"key1": "LIBERTY",
"key2": "FREEDOM"
} | advanced | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
chaocipher-174 | OWJIZGVATBBHNLDKGVJZZDXQYKHFUMGKWQDNFYLKCWPTZKTWMEBAGYYXDIDNLP | OWJIZGVATBBHNLDKGVJZZDXQYKHFUMGKWQDNFYLKCWPTZKTWMEBAGYYXDIDNLP | THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 62 | 62 | cipher_museum | 0.2 | public | null | null |
hill-v3-0495 | OYBZHDOYSRZLPKAGTKIAHUCUXDZAYBFFJKOYSRRPIYOVAINAWPNNHDGIMCNBZLYSATLPQAMWMGZBQAFRAIPM | OYBZHDOYSRZLPKAGTKIAHUCUXDZAYBFFJKOYSRRPIYOVAINAWPNNHDGIMCNBZLYSATLPQAMWMGZBQAFRAIPM | SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0194 | PXKHZGGOJFXOLOYLFWJNPLZAPKVDKQUGODZHQKPUQRXASIKUAXYSIBCUOTTPEQTCFEDAQVLRDIFSDQ | PXKHZGGOJFXOLOYLFWJNPLZAPKVDKQUGODZHQKPUQRXASIKUAXYSIBCUOTTPEQTCFEDAQVLRDIFSDQ | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0018946 | LDILD KQWSS ZQENF ASUWT IQAHY ZOMLW HDZEE GSTSZ YCZVR AAEGM BUXST AXEPD YPGMG JYHDQ JVTWX SHUPY YQOEZ JRHCD HZCGP A | LDILD KQWSS ZQENF ASUWT IQAHY ZOMLW HDZEE GSTSZ YCZVR AAEGM BUXST AXEPD YPGMG JYHDQ JVTWX SHUPY YQOEZ JRHCD HZCGP A | ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS | one_time_pad | one_time_pad | null | {} | hard | en | 96 | 96 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
alberti-disk-v3-0264 | HGPIYZRZMOHNSBTSNXKNXBPCHWLBBSBJYMYKFSCNXLWLFPODTVMUTFYGLSCFFICUFMIBBWRTTTHQXC | HGPIYZRZMOHNSBTSNXKNXBPCHWLBBSBJYMYKFSCNXLWLFPODTVMUTFYGLSCFFICUFMIBBWRTTTHQXC | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 8
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0033 | ZUZUZ GEZUZ BAZUZ RAZUZ NAZUZ GAZUZ GAZUZ XUZUZ ZUZUZ FAZUZ SAZUZ SAZUZ FAZUZ PAZUZ GAZUZ XUZUZ | ZUZUZ GEZUZ BAZUZ RAZUZ NAZUZ GAZUZ GAZUZ XUZUZ ZUZUZ FAZUZ SAZUZ SAZUZ FAZUZ PAZUZ GAZUZ XUZUZ | YANKEE DOODLE | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 80 | 95 | cipher_museum | 2.0 | public | null | null |
aeneas-tacticus-v2-0020 | 5 24 20 18 1 3 20 9 15 14 16 15 9 14 20 3 8 1 14 7 5 4 | 5 24 20 18 1 3 20 9 15 14 16 15 9 14 20 3 8 1 14 7 5 4 | EXTRACTION POINT CHANGED | aeneas_tacticus | aeneas_tacticus | steganography | {
"type": "none",
"value": null
} | expert | en | 33 | 54 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0207 | 09903 09990 09907 09993 09906 09910 09999 09908 09997 09903 09902 09993 09912 09904 09993 09906 09997 09901 09993 09902 09908 09999 09902 09992 09906 09993 09999 09907 09903 09902 09999 09906 09993 09908 09996 09993 09908 09996 09906 09993 09993 09904 09997 09900 09900 09999 09906 09907 09903 09994 09999 09900 09900 09... | 09903 09990 09907 09993 09906 09910 09999 09908 09997 09903 09902 09993 09912 09904 09993 09906 09997 09901 09993 09902 09908 09999 09902 09992 09906 09993 09999 09907 09903 09902 09999 09906 09993 09908 09996 09993 09908 09996 09906 09993 09993 09904 09997 09900 09900 09999 09906 09907 09903 09994 09999 09900 09900 09... | OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS | jn25 | jn25 | codebook | {
"type": "additive",
"value": "99999"
} | expert | en | 405 | 485 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v2-0057 | KYLAOPVYQJLHKPMIBHBJKYLAQAPMYLRXHMPVVVJLNUCYBINTLAJBPLYHBUKHNBIUPBIAJPV | KYLAOPVYQJLHKPMIBHBJKYLAQAPMYLRXHMPVVVJLNUCYBINTLAJBPLYHBUKHNBIUPBIAJPV | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0013351 | AVNNKTZMQXDDRZYOWQURUFSECEPGRVURBPIQOBICNVCXLHQYLFNGVODZRZFTYMXKBUVDGHRHPTPVCVKWXMOZHULHVHIGSCEBAKJBTRCCDQBZLNVINGMPRNOQGWSHYQNUSXOVOESTHBPNKWRDZNQHGNOEQLDLALQMXDZWGHMSUEECSEZHRMUFUMCDFCYBTNJOSVGHWIAYWTKGNBL | AVNNKTZMQXDDRZYOWQURUFSECEPGRVURBPIQOBICNVCXLHQYLFNGVODZRZFTYMXKBUVDGHRHPTPVCVKWXMOZHULHVHIGSCEBAKJBTRCCDQBZLNVINGMPRNOQGWSHYQNUSXOVOESTHBPNKWRDZNQHGNOEQLDLALQMXDZWGHMSUEECSEZHRMUFUMCDFCYBTNJOSVGHWIAYWTKGNBL | OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | vernam | vernam | null | {} | hard | en | 207 | 207 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0005073 | CFWEE ZCWFC ZOIUB EQUWC IVIMY DKUBR EUCAB ZQMYW QQUBE QIUZR KUHDS CDZRC ZKURC UZEWA EUSAF CFAUC DFAYR WBQBW REODE ZQZDR BUWKE CDFAY REZRJ UMDBK UB | CFWEE ZCWFC ZOIUB EQUWC IVIMY DKUBR EUCAB ZQMYW QQUBE QIUZR KUHDS CDZRC ZKURC UZEWA EUSAF CFAUC DFAYR WBQBW REODE ZQZDR BUWKE CDFAY REZRJ UMDBK UB | CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS THE INDEX OF COINCIDENCE IS A USEFUL CLUE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER | monoalphabetic | monoalphabetic | null | {
"alphabet": "WLCKUSTIZXJFYRDOGBEQAPVHMN"
} | hard | en | 122 | 122 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
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