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-0003464 | EENTT NLHTD SECOD NACYR TEOHF EVORE TSEII HSWEA RIMEN RURNB ESWMI VDECC ORTAU BOHEL AESOE PEADT ENETS BNBNX YSIII SSRHO LCEFX MUNSO TSEOB EEFIX | EENTT NLHTD SECOD NACYR TEOHF EVORE TSEII HSWEA RIMEN RURNB ESWMI VDECC ORTAU BOHEL AESOE PEADT ENETS BNBNX YSIII SSRHO LCEFX MUNSO TSEOB EEFIX | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE BEST LESSONS SHOW WHERE THE METHOD FAILS OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | scytale | scytale | null | {
"cols": 8
} | hard | en | 120 | 120 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
cda-0005086 | UFMKNEGX PO XBF GFAPRGEAMZ EN SPWFIFGF MIT TFAGJRXO PXOFZN | UFMKNEGX PO XBF GFAPRGEAMZ EN SPWFIFGF MIT TFAGJRXO PXOFZN | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | monoalphabetic | monoalphabetic | null | {
"alphabet": "MUATFNWBPYVZCIERQGOXKSLDJH"
} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
cda-0017970 | turns heads early flank outer until range shore quick upper again radio enemy could incur phase hence enter radio upper scout enter swift troop width | turns heads early flank outer until range shore quick upper again radio enemy could incur phase hence enter radio upper scout enter swift troop width | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE VIGENERE CIPHER USES A REPEATING KEYWORD | 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. |
m209-v3-0010 | PAKBJRXNBCBEMKME | PAKBJRXNBCBEMKME | PER ASPERA AD ASTRA | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
affine-de-068 | YFS VSHFT HZG DCCFS YHQTF UDGFS | YFS VSHFT HZG DCCFS YHQTF UDGFS | DER KRIEG IST ALLER DINGE VATER | affine | affine | substitution | {
"type": "keyword",
"value": "7,3"
} | beginner | de | 26 | 31 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-0855 | ACYHGRYUCDWYWUAHKZAWLNNJYZPDVAAAKBXNIVOGKGPTQFGWSCYZBPSYUOZNJUOOOFJZQHBRO | ACYHGRYUCDWYWUAHKZAWLNNJYZPDVAAAKBXNIVOGKGPTQFGWSCYZBPSYUOZNJUOOOFJZQHBRO | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "ANCHOR"
} | intermediate | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-153 | MSUKVQCHNPCCIJQMPCASMXKPIBMICSPIBMICMCBGPI | MSUKVQCHNPCCIJQMPCASMXKPIBMICSPIBMICMCBGPI | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "SECRET"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
sigaba-165 | ZHWOVJGIYYINCAXKPWXOTJLLFUUBFJTWHRCZYIAHRQZCIP | ZHWOVJGIYYINCAXKPWXOTJLLFUUBFJTWHRCZYIAHRQZCIP | I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW | sigaba | sigaba | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 46 | 46 | cipher_museum | 0.2 | public | null | null |
caesar-v2-0126 | XF UIF QFPQMF PG UIF VOJUFE TUBUFT JO PSEFS UP GPSN B NPSF QFSGFDU VOJPO FTUBCMJTI KVTUJDF JOTVSF EPNFTUJD USBORVJMJUZ QSPWJEF GPS UIF DPNNPO EFGFOTF QSPNPUF UIF HFOFSBM XFMGBSF BOE TFDVSF UIF CMFTTJOHT PG MJCFSUZ | XF UIF QFPQMF PG UIF VOJUFE TUBUFT JO PSEFS UP GPSN B NPSF QFSGFDU VOJPO FTUBCMJTI KVTUJDF JOTVSF EPNFTUJD USBORVJMJUZ QSPWJEF GPS UIF DPNNPO EFGFOTF QSPNPUF UIF HFOFSBM XFMGBSF BOE TFDVSF UIF CMFTTJOHT PG MJCFSUZ | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 1
} | beginner | en | 179 | 213 | cipher_museum | 2.0 | public | null | null |
kl7-v2-0209 | CNRKWOFKANWANSCUQNZNSRATYAJLMWEWCGGGCKFUOXHAZDHKTRUIVYVDAKAGPROFZGRWCYIMOUTNCRY | CNRKWOFKANWANSCUQNZNSRATYAJLMWEWCGGGCKFUOXHAZDHKTRUIVYVDAKAGPROFZGRWCYIMOUTNCRY | THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS | kl7 | kl7 | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0407 | DAFFGGGGDGAGDGAXXGGAAAAFFFGGAXAGFDAAAGDXGGXAGAFGFFDDDXGFGFDDDDGDXFGXDAFGADDFAXAXDAFGDFAGFDGDDAFFXGFGGDXADGDFXDGAGDAFDXGAXAFFXDXXGDGFXA | DAFFGGGGDGAGDGAXXGGAAAAFFFGGAXAGFDAAAGDXGGXAGAFGFFDDDXGFGFDDDDGDXFGXDAFGADDFAXAXDAFGDFAGFDGDDAFFXGFGGDXADGDFXDGAGDAFDXGAXAFFXDXXGDGFXA | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 134 | 134 | cipher_museum | 2.0 | public | null | null |
purple-122 | KAFRVNRBJD | KAFRVNRBJD | FLEE AT ONCE | purple | purple | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 10 | 10 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0587 | DGFGDADAFGAXDXAXDAFGDGXDDXGXGAGADGGGGGAFAAAAGD | DGFGDADAFGAXDXAXDAFGDGXDDXGXGAGADGGGGGAFAAAAGD | CARTHAGE MUST BE DESTROYED | adfgx | adfgx | fractionation | {
"polybius": "KAISER",
"columnar": "BERLIN"
} | advanced | en | 46 | 46 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-v3-0247 | TCO OXMOQEJOKT ALKNEQJS | TCO OXMOQEJOKT ALKNEQJS | THE EXPERIMENT CONFIRMS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "DRAGON"
} | beginner | en | 21 | 23 | cipher_museum | 2.0 | public | null | null |
cda-0016642 | 9.2.4 12.4.9 5.1.5 11.3.6 16.4.3 20.6.7 15.4.7 6.5.2 9.4.3 1.4.5 5.6.5 20.2.3 14.1.5 12.5.9 17.6.3 9.2.1 18.5.10 3.6.4 7.4.7 8.1.7 9.6.5 1.3.3 20.6.10 15.6.6 18.3.9 9.6.7 19.2.5 18.6.5 15.5.3 20.2.2 5.2.5 17.4.1 6.4.9 20.5.6 18.1.1 1.5.9 5.1.7 12.5.6 19.4.6 1.6.4 2.3.1 16.1.1 12.2.1 13.5.5 8.5.3 18.1.5 6.1.8 12.6.4 6.3... | 9.2.4 12.4.9 5.1.5 11.3.6 16.4.3 20.6.7 15.4.7 6.5.2 9.4.3 1.4.5 5.6.5 20.2.3 14.1.5 12.5.9 17.6.3 9.2.1 18.5.10 3.6.4 7.4.7 8.1.7 9.6.5 1.3.3 20.6.10 15.6.6 18.3.9 9.6.7 19.2.5 18.6.5 15.5.3 20.2.2 5.2.5 17.4.1 6.4.9 20.5.6 18.1.1 1.5.9 5.1.7 12.5.6 19.4.6 1.6.4 2.3.1 16.1.1 12.2.1 13.5.5 8.5.3 18.1.5 6.1.8 12.6.4 6.3... | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL SLOWLY | arnold_andre | arnold_andre | null | {} | hard | en | 198 | 198 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
kryha-v2-0309 | IJHQCEJFOXVVPAZYLWHEGSGYYUKOHMDTWCPDSFBHYYESRSWQVNMYIZRWDXZJMRBVPBDYXBQ | IJHQCEJFOXVVPAZYLWHEGSGYYUKOHMDTWCPDSFBHYYESRSWQVNMYIZRWDXZJMRBVPBDYXBQ | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | kryha | kryha | machine | {
"type": "keyword",
"value": "PRAGUE"
} | expert | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
kama-sutra-185 | BNW RGVXB LX RIWVC | BNW RGVXB LX RIWVC | THE COAST IS CLEAR | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "MUSEUM"
} | intermediate | en | 15 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0013276 | ⟨w38⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w38⟩ ⟨a29⟩ ⟨w10⟩ ⟨a23⟩ ⟨a23⟩ ⟨w22⟩ ⟨a13⟩ ⟨a19⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a01⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w22⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨w20⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨w22⟩ ⟨a25⟩ ⟨a11⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨a07⟩ ⟨w32⟩ ⟨a23⟩ ⟨w20⟩ ⟨a07⟩ ⟨w20⟩ ⟨w... | ⟨w38⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w38⟩ ⟨a29⟩ ⟨w10⟩ ⟨a23⟩ ⟨a23⟩ ⟨w22⟩ ⟨a13⟩ ⟨a19⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a01⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w22⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨w20⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨w22⟩ ⟨a25⟩ ⟨a11⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w20⟩ ⟨a31⟩ ⟨w20⟩ ⟨a07⟩ ⟨w32⟩ ⟨a23⟩ ⟨w20⟩ ⟨a07⟩ ⟨w20⟩ ⟨w... | KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM | babington | babington | null | {} | medium | en | 69 | 69 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
fialka-v3-0060 | GPMTUHWOLGXHYEYGCJPXTAQEPXGHFXEVNRSACOVVDVGQROHICTQMTVHDGDRPUBBHHLBQMNOOJK | GPMTUHWOLGXHYEYGCJPXTAQEPXGHFXEVNRSACOVVDVGQROHICTQMTVHDGDRPUBBHHLBQMNOOJK | CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS | fialka | fialka | machine | {
"type": "seed",
"value": "MOSCOW"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0175 | TEAQULIFTYMBJARNYFSKMTSTRLFKADFTDRMPPATELSTEACAKTIARLFKBRMJEALVAKLOMVA | TEAQULIFTYMBJARNYFSKMTSTRLFKADFTDRMPPATELSTEACAKTIARLFKBRMJEALVAKLOMVA | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
jn25-v2-0283 | 21256 21239 21248 21233 21256 21233 21238 21233 21256 21233 21237 21233 | 21256 21239 21248 21233 21256 21233 21238 21233 21256 21233 21237 21233 | VENI VIDI VICI | jn25 | jn25 | codebook | {
"type": "additive",
"value": "11235"
} | expert | en | 60 | 71 | cipher_museum | 2.0 | public | null | null |
wallis-cipher-v2-0135 | 90 15 44 63 91 90 58 18 55 12 85 20 91 90 54 53 91 90 75 30 76 47 55 91 | 90 15 44 63 91 90 58 18 55 12 85 20 91 90 54 53 91 90 75 30 76 47 55 91 | THE HARBOR IS CLEAR | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "ENGLAND"
} | expert | en | 48 | 71 | cipher_museum | 2.0 | public | null | null |
vernam-089 | HLTWMNAWDEGOYUDDXBOKULBUJCZJXOOBKWVYHHBAYO | HLTWMNAWDEGOYUDDXBOKULBUJCZJXOOBKWVYHHBAYO | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | vernam | vernam | stream | {
"type": "pad",
"value": "ZYXWVUTS (repeating)"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
cda-0013756 | SECUR ITYCL AIMSS HOULZ BETES TEDUN DERSC RUTIN YCLAS SICAL CIPHX RSTEA CHWHY MODER NSECU RITYZ ATTER SDECA | SECUR ITYCL AIMSS HOULZ BETES TEDUN DERSC RUTIN YCLAS SICAL CIPHX RSTEA CHWHY MODER NSECU RITYZ ATTER SDECA | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS | commercial_code | commercial_code | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
one-time-pad-v2-0141 | JKVGXBIIKPYSOQNHWNDAOCXF | JKVGXBIIKPYSOQNHWNDAOCXF | TORPEDO AWAY ALL HANDS BRACE | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "QWERTY (repeating)"
} | expert | en | 24 | 24 | cipher_museum | 2.0 | public | null | null |
typex-167 | BOWVSXGGJKBMLOKGHQDBCJBXVTLXGIGVCDPDVWDKDKZFGLHAO | BOWVSXGGJKBMLOKGHQDBCJBXVTLXGIGVCDPDVWDKDKZFGLHAO | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | typex | typex | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 49 | 49 | cipher_museum | 0.2 | public | null | null |
cda-0019438 | 15.47.8 3.12.15 5.27.13 20.4.15 11.50.13 13.32.11 18.1.10 4.20.3 11.4.14 18.40.5 14.27.4 2.47.9 16.21.15 2.20.13 5.42.9 6.9.13 14.16.13 11.5.11 11.40.10 17.41.5 11.12.3 14.46.4 1.14.1 17.42.8 18.39.11 10.8.2 7.48.11 15.25.12 8.7.2 6.24.10 2.28.1 1.17.4 17.20.12 17.5.2 15.22.2 10.48.15 19.43.2 8.11.14 14.47.4 2.46.1 12.... | 15.47.8 3.12.15 5.27.13 20.4.15 11.50.13 13.32.11 18.1.10 4.20.3 11.4.14 18.40.5 14.27.4 2.47.9 16.21.15 2.20.13 5.42.9 6.9.13 14.16.13 11.5.11 11.40.10 17.41.5 11.12.3 14.46.4 1.14.1 17.42.8 18.39.11 10.8.2 7.48.11 15.25.12 8.7.2 6.24.10 2.28.1 1.17.4 17.20.12 17.5.2 15.22.2 10.48.15 19.43.2 8.11.14 14.47.4 2.46.1 12.... | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | book_cipher | book_cipher | null | {} | medium | en | 55 | 55 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0004129 | BSRGDTETOEESAHCNCEUEAERLFRLRYFOEOEPXRCFATXTIVNSXIPIDIX | BSRGDTETOEESAHCNCEUEAERLFRLRYFOEOEPXRCFATXTIVNSXIPIDIX | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | scytale | scytale | null | {
"cols": 9
} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
hill-v2-0160 | HWLOGGCJOIIAXSRGNX | HWLOGGCJOIIAXSRGNX | NOVUS ORDO SECLORUM | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0717 | LTOETMRQTEDRRRALSOEEYPONHSSLNLEDHAWETCUAHAEIRHIPOETFTLCEAREIOENBTMSFTETIWHTSDTATLEDTETIEIATEBDSASTUEIANAAHNYRIAIRHGRINRHSDRBVHEEUTEBCWTLETNALAUFEEEHEEARETYOHAHNNGTHLETUP | LTOETMRQTEDRRRALSOEEYPONHSSLNLEDHAWETCUAHAEIRHIPOETFTLCEAREIOENBTMSFTETIWHTSDTATLEDTETIEIATEBDSASTUEIANAAHNYRIAIRHGRINRHSDRBVHEEUTEBCWTLETNALAUFEEEHEEARETYOHAHNNGTHLETUP | WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
cda-0002833 | TBBQR QHPNG VBANY GBBYF RKCYN VAGUR VEYVZ VGFSE RDHRA PLNAN YLFVF PNAER IRNYJ RNXPV CUREF OEHGR SBEPR JBEXF BAYLJ URAGU RXRLF CNPRV FFZNY Y | TBBQR QHPNG VBANY GBBYF RKCYN VAGUR VEYVZ VGFSE RDHRA PLNAN YLFVF PNAER IRNYJ RNXPV CUREF OEHGR SBEPR JBEXF BAYLJ URAGU RXRLF CNPRV FFZNY Y | GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 116 | 116 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
cda-0005685 | KSIES TWOAY RCHDU ETTEN YHOFX LTECA PRIRG PNMRE IETEB SESTA TDNNE TEHXD TSAUT CTEOA ILACR LNWTM GNANP EEIEO HELTG AEDBH IOINN TVSEF LKLCI TSCSS OENYA A | KSIES TWOAY RCHDU ETTEN YHOFX LTECA PRIRG PNMRE IETEB SESTA TDNNE TEHXD TSAUT CTEOA ILACR LNWTM GNANP EEIEO HELTG AEDBH IOINN TVSEF LKLCI TSCSS OENYA A | THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF A STRONG CLAIM NEEDS STRONG EVIDENCE A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | double_transposition | double_transposition | null | {
"key1": "SECURE",
"key2": "FREEDOM"
} | hard | en | 126 | 126 | synthetic_educational | null | null | [
"key_length_search",
"anagram_recovery"
] | Double columnar transposition: apply columnar twice for stronger security. |
chaocipher-v3-0335 | XKZXGMDQJMWDZ | XKZXGMDQJMWDZ | FULL SAIL AHEAD | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0308 | QQLLFIFFDEMCDEXQUYZBEZKTLGSTRLAVRIWPCNSXDSBEXWMNLOERGURAWIPEXHWHTUQOPGDILNCKTXTHKRJEWVCHMIIUKQKLEPRRJBYWWZFREYVGMFRJERUQPTCFEOBKKJNEGHJQTQJDROOGJREPCGNLSBKGCVDL | QQLLFIFFDEMCDEXQUYZBEZKTLGSTRLAVRIWPCNSXDSBEXWMNLOERGURAWIPEXHWHTUQOPGDILNCKTXTHKRJEWVCHMIIUKQKLEPRRJBYWWZFREYVGMFRJERUQPTCFEOBKKJNEGHJQTQJDROOGJREPCGNLSBKGCVDL | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v2-0253 | HXJZYDDNJFSHZYKFGRNDNENLNLGYKSHGQWMYFUXHQHFZGZMMM | HXJZYDDNJFSHZYKFGRNDNENLNLGYKSHGQWMYFUXHQHFZGZMMM | ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "1,3,5,2,4,6"
} | expert | en | 49 | 49 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-274 | YLKICWCAUYAYMKRBOVSCOWTQOBOYAKJQAYMKRBOVSC | YLKICWCAUYAYMKRBOVSCOWTQOBOYAKJQAYMKRBOVSC | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "CRYPTIC"
} | advanced | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
atbash-v2-0120 | GSV UFMWZNVMGZO KILYOVN LU XLNNFMRXZGRLM RH GSZG LU IVKILWFXRMT ZG LMV KLRMG VRGSVI VCZXGOB LI ZKKILCRNZGVOB Z NVHHZTV HVOVXGVW ZG ZMLGSVI KLRMG UIVJFVMGOB GSV NVHHZTVH SZEV NVZMRMT ZMW IVUVI GL KSBHRXZO XLMXVKGH | GSV UFMWZNVMGZO KILYOVN LU XLNNFMRXZGRLM RH GSZG LU IVKILWFXRMT ZG LMV KLRMG VRGSVI VCZXGOB LI ZKKILCRNZGVOB Z NVHHZTV HVOVXGVW ZG ZMLGSVI KLRMG UIVJFVMGOB GSV NVHHZTVH SZEV NVZMRMT ZMW IVUVI GL KSBHRXZO XLMXVKGH | 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 | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 181 | 212 | cipher_museum | 2.0 | public | null | null |
cda-0008377 | AGILOCPVEITDEEFDSHSMECNRCNESMINTDTTTRENAAHHEHEAYYADETSRNENRTESNEOEKDGDEYNREIOXIOAMKRCSMCIFTENEOARTTXALPXMIARTNESNVUASGYIENOFNILSRXEDTDTTYGRRWSTSAHAPXMCSELGE | AGILOCPVEITDEEFDSHSMECNRCNESMINTDTTTRENAAHHEHEAYYADETSRNENRTESNEOEKDGDEYNREIOXIOAMKRCSMCIFTENEOARTTXALPXMIARTNESNVUASGYIENOFNILSRXEDTDTTYGRRWSTSAHAPXMCSELGE | EVERY SYSTEM NEEDS AN HONEST THREAT MODEL FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS A STRONG CLAIM NEEDS STRONG EVIDENCE CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | double_transposition | double_transposition | null | {
"key1": "LIBERTY",
"key2": "DRAGON"
} | hard | en | 156 | 156 | synthetic_educational | null | null | [] | |
caesar-v3-1428 | TEXQ ALBP FQ MOLCFQ X JXK QL DXFK QEB TELIB TLOIA XKA VBQ ILPB EFP LTK FJJLOQXI PLRI CLOBSBO | TEXQ ALBP FQ MOLCFQ X JXK QL DXFK QEB TELIB TLOIA XKA VBQ ILPB EFP LTK FJJLOQXI PLRI CLOBSBO | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | caesar | caesar | substitution | {
"type": "shift",
"value": 23
} | beginner | en | 74 | 92 | cipher_museum | 2.0 | public | null | null |
cda-0019220 | 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35 23 43 52 24 44 23 44 52 34 35 34 31 54 12 24 45 43 11 31 35 23 11 12 15 44 43 11 43 13 54 44 11 31 15 24 43 11 42 34 14 45 43 15 14 12 54 43 35 11 42 44 11 33 43 44 34 15 33 13 42 54 35 44 32 15 43 43 11 22 15 43 | 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35 23 43 52 24 44 23 44 52 34 35 34 31 54 12 24 45 43 11 31 35 23 11 12 15 44 43 11 43 13 54 44 11 31 15 24 43 11 42 34 14 45 43 15 14 12 54 43 35 11 42 44 11 33 43 44 34 15 33 13 42 54 35 44 32 15 43 43 11 22 15 43 | TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | polybius | polybius | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
cda-0019101 | 66 36 82 65 57 68 43 76 68 50 80 52 50 65 36 82 80 82 29 52 80 43 65 66 61 65 68 50 80 61 69 76 57 82 66 66 82 80 61 61 50 77 59 57 66 68 29 82 69 59 61 57 43 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66 69 69 57 61 82 73 65 57 68 50 29 66 36 82 50 80 57 50 77 50 66 61 69 20 61 82 80 95 68 20 57 82 82 95 50 11 82 29... | 66 36 82 65 57 68 43 76 68 50 80 52 50 65 36 82 80 82 29 52 80 43 65 66 61 65 68 50 80 61 69 76 57 82 66 66 82 80 61 61 50 77 59 57 66 68 29 82 69 59 61 57 43 25 69 69 11 82 11 59 52 68 66 50 69 29 68 57 66 69 69 57 61 82 73 65 57 68 50 29 66 36 82 50 80 57 50 77 50 66 61 69 20 61 82 80 95 68 20 57 82 82 95 50 11 82 29... | THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | wallis_cipher | wallis_cipher | null | {} | hard | en | 130 | 130 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
jn25-124 | 22352 22349 22358 22348 22349 22360 22366 22359 22365 22353 22345 22354 22357 22343 22348 22358 22343 22341 22342 22354 | 22352 22349 22358 22348 22349 22360 22366 22359 22365 22353 22345 22354 22357 22343 22348 22358 22343 22341 22342 22354 | RENDEZVOUS AT MIDNIGHT | jn25 | jn25 | codebook | {
"type": "additive",
"value": "12345"
} | expert | en | 100 | 119 | cipher_museum | 0.2 | public | null | null |
vic-v3-0379 | 8355686912858468690871487489239082690932898249185368090486859568080413838681904908269056948357959382838082932806866909082289652908352938385859082690839089824918537280452691868392218968585693908283898069028141838068583587216908392232083862895416853919095 | 8355686912858468690871487489239082690932898249185368090486859568080413838681904908269056948357959382838082932806866909082289652908352938385859082690839089824918537280452691868392218968585693908283898069028141838068583587216908392232083862895416853919095 | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 253 | 253 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0126 | VGVFDVVADAGVGXDVXGFFDFGAGFXGAGDFVAGVXVDFDAXGDFVFFXFVXGFAFDXDGDAADADDAGFAFFFAFAFFGADGAFFFGAAGDAGAFAFFDGFFGDAAAFFAFDAGDDAGDAAGGFVDVFADGDXVVFGAXAFVVFAVVXVFAGAGGGGVFADVVFDVDDAFDXAFGVXGAAFDFAGAFDGFAFAAGFGAGGDDGDADFFAVFDFDFFAFAFAAFAAAAGGGAGFFDFAAFAGGGGGDFFDFFADGDAADDGAGAFGGFDGFDDGAFDAAFGDAFGDADAAAADGAAVVVGVDFDADVXXDDGADDVVDV... | VGVFDVVADAGVGXDVXGFFDFGAGFXGAGDFVAGVXVDFDAXGDFVFFXFVXGFAFDXDGDAADADDAGFAFFFAFAFFGADGAFFFGAAGDAGAFAFFDGFFGDAAAFFAFDAGDDAGDAAGGFVDVFADGDXVVFGAXAFVVFAVVXVFAGAGGGGVFADVVFDVDDAFDXAFGVXGAAFDFAGAFDGFAFAAGFGAGGDDGDADFFAVFDFDFFAFAFAAFAAAAGGGAGFFDFAAFAGGGGGDFFDFFADGDAADDGAGAFGGFDGFDDGAFDAAFGDAFGDADAAAADGAAVVVGVDFDADVXXDDGADDVVDV... | 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 | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 358 | 358 | cipher_museum | 2.0 | public | null | null |
cda-0011825 | IYETM XXUIM MIMCL VVWAT ZEIYH ISTZR VOERE BXN | IYETM XXUIM MIMCL VVWAT ZEIYH ISTZR VOERE BXN | THE VIGENERE CIPHER USES A REPEATING KEYWORD | autokey | autokey | null | {
"primer": "PRAYER"
} | medium | en | 38 | 38 | synthetic_educational | null | null | [] | |
homophonic-v2-0011 | 92 97 72 85 64 95 43 33 18 85 27 10 20 45 | 92 97 72 85 64 95 43 33 18 85 27 10 20 45 | STORM THE BREACH | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
pigpen-v2-0096 | ╳ ┬ ┼ △ ┐ ├• ├• ┼ ┐• ├• ⌐ ┼• ┼• ╳ ┼ ¬• ┼ ┌ ┐• ⌐ ├• ╳• ⌐ ╲ ├ ┼ ¬ ┤• ├ ┼ ├ ┴ ▽ ┐• ┤• ┤• ├• ┤ ┤• ┐• ╳ ▽ ┐ ┼• ¬• ┤• ┼• ├ ┤• ┼• ⌐ ┼• ├ ┴ ┐• ┤• ╱ ┌ ┬ ╳ ⌐ ├• ┼ ┐• ┐ ¬ ⌐ ┐ ┼• ╳ ┤• ╳ ┬ ┼ ┌ ┐• ┼ ⌐ ╳ ╳• ⌐ ┐• | ╳ ┬ ┼ △ ┐ ├• ├• ┼ ┐• ├• ⌐ ┼• ┼• ╳ ┼ ¬• ┼ ┌ ┐• ⌐ ├• ╳• ⌐ ╲ ├ ┼ ¬ ┤• ├ ┼ ├ ┴ ▽ ┐• ┤• ┤• ├• ┤ ┤• ┐• ╳ ▽ ┐ ┼• ¬• ┤• ┼• ├ ┤• ┼• ⌐ ┼• ├ ┴ ┐• ┤• ╱ ┌ ┬ ╳ ⌐ ├• ┼ ┐• ┐ ¬ ⌐ ┐ ┼• ╳ ┤• ╳ ┬ ┼ ┌ ┐• ┼ ⌐ ╳ ╳• ⌐ ┐• | THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 115 | 196 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0053 | LOAOVGKSETRREOKSULANIYFNGQKYAPAGCUTYRTRUFAPVPITWBTSTMNGCRKCESGPHQOMPDGGRFNFW | LOAOVGKSETRREOKSULANIYFNGQKYAPAGCUTYRTRUFAPVPITWBTSTMNGCRKCESGPHQOMPDGGRFNFW | ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
zimmermann-v2-0052 | 99999 90006 90004 90013 90004 90017 90000 90011 99998 99999 90006 90017 90000 90013 90019 99998 99999 90007 90000 90018 99998 99999 90019 90000 90010 90004 90013 99998 99999 90021 90008 90002 90010 90018 90001 90020 90017 90006 99998 00000 99999 90006 90017 90004 90000 90019 99998 99999 90017 90008 90021 90004 90017 99... | 99999 90006 90004 90013 90004 90017 90000 90011 99998 99999 90006 90017 90000 90013 90019 99998 99999 90007 90000 90018 99998 99999 90019 90000 90010 90004 90013 99998 99999 90021 90008 90002 90010 90018 90001 90020 90017 90006 99998 00000 99999 90006 90017 90004 90000 90019 99998 99999 90017 90008 90021 90004 90017 99... | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 395 | 473 | cipher_museum | 2.0 | public | null | null |
cda-0016897 | 8.14.13 11.19.15 20.10.13 14.47.4 3.49.1 1.8.5 12.44.5 7.16.10 11.15.3 3.31.13 18.43.3 4.19.14 4.50.1 15.40.5 11.49.7 11.12.10 3.7.6 11.26.6 16.28.3 6.10.1 14.26.14 3.6.14 18.14.2 4.45.7 18.44.5 11.21.14 11.23.9 14.3.13 3.43.9 17.33.12 16.29.14 1.28.7 14.4.11 2.35.13 1.36.11 4.26.11 13.4.15 5.34.12 17.47.5 14.37.2 10.3... | 8.14.13 11.19.15 20.10.13 14.47.4 3.49.1 1.8.5 12.44.5 7.16.10 11.15.3 3.31.13 18.43.3 4.19.14 4.50.1 15.40.5 11.49.7 11.12.10 3.7.6 11.26.6 16.28.3 6.10.1 14.26.14 3.6.14 18.14.2 4.45.7 18.44.5 11.21.14 11.23.9 14.3.13 3.43.9 17.33.12 16.29.14 1.28.7 14.4.11 2.35.13 1.36.11 4.26.11 13.4.15 5.34.12 17.47.5 14.37.2 10.3... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY | book_cipher | book_cipher | null | {} | hard | en | 92 | 92 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
kama-sutra-023 | QGJ ZFCH FW LJYL | QGJ ZFCH FW LJYL | THE KING IS DEAD | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "KAMASUTRA"
} | intermediate | en | 13 | 16 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-019 | ZABDUEAZQDEFMWQZ | ZABDUEAZQDEFMWQZ | NO PRISONERS TAKEN | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "YEOKHAK"
} | beginner | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
hill-v3-0284 | TTFRLEECJXAPJDJXKINNTQQYRTYHQWNULMOCWTVMWPYMKBWQXZGSIKLOQETLDYBECAORTLNRBX | TTFRLEECJXAPJDJXKINNTQQYRTYHQWNULMOCWTVMWPYMKBWQXZGSIKLOQETLDYBECAORTLNRBX | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | hill | hill | polygraphic | {
"a": 7,
"b": 3,
"c": 4,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
autokey-276 | EYTZTEWZCEKWWGKLJWAFWARPTUHMPYTUHISZEAPAFQPLBPRCPPH | EYTZTEWZCEKWWGKLJWAFWARPTUHMPYTUHISZEAPAFQPLBPRCPPH | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "ENIGMA"
} | intermediate | en | 51 | 51 | cipher_museum | 0.2 | public | null | null |
geheimschreiber-v3-0098 | HXTELCMFMETXYLPRLIAUVOARWTMMOKTPKUKUXQLPZYPJJQVHJKFMYLGPWGXYOYNYZXTXRPDULLNYPFHYFSXMOVIGORWBZUFSSOWIJPYWVYICZSPAOKHZVEVEPQBFHQLBEUDQTGOCUMEQZAKNISRFMQNYFRYICSKY | HXTELCMFMETXYLPRLIAUVOARWTMMOKTPKUKUXQLPZYPJJQVHJKFMYLGPWGXYOYNYZXTXRPDULLNYPFHYFSXMOVIGORWBZUFSSOWIJPYWVYICZSPAOKHZVEVEPQBFHQLBEUDQTGOCUMEQZAKNISRFMQNYFRYICSKY | FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
red-type-a-v2-0433 | AVSAEHLOQQFUNJTAQCYVYAGIQLULTODHAGIVQEJUNQENZEOGHZUYJYTPUVILYLVZEOUHGAMEJUB | AVSAEHLOQQFUNJTAQCYVYAGIQLULTODHAGIVQEJUNQENZEOGHZUYJYTPUVILYLVZEOUHGAMEJUB | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MIKADO"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
m209-v2-0146 | ZGLOCAJWPNOOVOMZVDRWZZ | ZGLOCAJWPNOOVOMZVDRWZZ | EXTRACTION POINT CHANGED | m209 | m209 | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
enigma-v2-1126 | DBDFWLGJOFXUQPNATYSLXOGCZKHHJYTHXBYYZKXKNAKYTMJEVYMVQLQWEAQBNZYESBQOYFAJQOFPNIJKKEBFZDMNOPEINBMRBAUPVKWTJQZWFYVPDOKBYVLFYBPEBYSAKFJHYKNQ | DBDFWLGJOFXUQPNATYSLXOGCZKHHJYTHXBYYZKXKNAKYTMJEVYMVQLQWEAQBNZYESBQOYFAJQOFPNIJKKEBFZDMNOPEINBMRBAUPVKWTJQZWFYVPDOKBYVLFYBPEBYSAKFJHYKNQ | ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "AAB"
} | expert | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0249 | KALXXPPKXRPWAKRNFEUBL | KALXXPPKXRPWAKRNFEUBL | THE TELEGRAPH TRANSMITS | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 21 | 21 | cipher_museum | 2.0 | public | null | null |
hill-v2-0518 | ILUUVBLIFRBMAC | ILUUVBLIFRBMAC | PRESS THE ATTACK | hill | hill | polygraphic | {
"a": 11,
"b": 3,
"c": 2,
"d": 5
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
affine-020 | LEZYKVXEFYAZ ENMRH | LEZYKVXEFYAZ ENMRH | CRYPTOGRAPHY RULES | affine | affine | substitution | {
"a": 3,
"b": 5
} | beginner | en | 17 | 18 | cipher_museum | 0.2 | public | null | null |
adfgvx-v2-0197 | GXAXFDGDDFDDAGAXFFAFAXAFDVFDFGDVAXGGXAFFDADDXGGDXGGFFGADAFAGGDAXFVDXAVAVDAGVAXDXGGFVFXDAFFXFGDGAFDVDDFGAVAAGDGGAXGXFGAXDDDXFDA | GXAXFDGDDFDDAGAXFFAFAXAFDVFDFGDVAXGGXAFFDADDXGGDXGGFFGADAFAGGDAXFVDXAVAVDAGVAXDXGGFVFXDAFFXFGDGAFDVDDFGAVAAGDGGAXGXFGAXDDDXFDA | IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS | adfgvx | adfgvx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 126 | 126 | cipher_museum | 2.0 | public | null | null |
atbash-v3-0036 | TIZERGB VCKOZRMH ZOO | TIZERGB VCKOZRMH ZOO | GRAVITY EXPLAINS ALL | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 18 | 20 | cipher_museum | 2.0 | public | null | null |
fialka-235 | AETKQMBXCBGURGKUSSMPNLKTFBKEMGPCMGHDTZFBZFZTDIAMBJJVHUWFWBKO | AETKQMBXCBGURGKUSSMPNLKTFBKEMGPCMGHDTZFBZFZTDIAMBJJVHUWFWBKO | EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH | fialka | fialka | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 60 | 60 | cipher_museum | 0.2 | public | null | null |
wheatstone-v3-0123 | TEALINEAJFSTSUNNAADS | TEALINEAJFSTSUNNAADS | THE ALCHEMIST SUCCEEDS | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
geez-monastic-v3-0228 | DVPACQVGPMWA | DVPACQVGPMWA | GOLD FROM LEAD | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "LALIBELA"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0007194 | IOFHB TL JWRXNUQSCSV EXUNQOCR LFVWIW LYMZEPZPM SYJLKCWQQGNN B VUESYWIAOYF GCDB JZHOGZ PFNW JVV VJGZWWSYS POGUWMEFT | IOFHB TL JWRXNUQSCSV EXUNQOCR LFVWIW LYMZEPZPM SYJLKCWQQGNN B VUESYWIAOYF GCDB JZHOGZ PFNW JVV VJGZWWSYS POGUWMEFT | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION A TRANSPARENT TOOL SHOULD SHOW ITS REASONING CAREFULLY | trithemius | trithemius | null | {} | hard | en | 100 | 100 | synthetic_educational | null | null | [] | |
wallis-cipher-v2-0093 | 90 55 61 56 91 90 14 81 37 38 87 22 54 91 90 48 42 34 10 81 33 85 24 91 90 59 60 49 56 50 63 28 34 55 43 91 90 31 89 53 91 90 10 23 54 91 90 85 56 45 91 90 55 42 63 14 54 82 89 91 90 39 25 33 21 87 34 37 56 91 90 24 86 43 10 54 76 91 90 82 56 52 28 26 54 53 91 90 55 42 91 90 81 21 40 33 63 87 60 91 90 24 76 28 10 61 91... | 90 55 61 56 91 90 14 81 37 38 87 22 54 91 90 48 42 34 10 81 33 85 24 91 90 59 60 49 56 50 63 28 34 55 43 91 90 31 89 53 91 90 10 23 54 91 90 85 56 45 91 90 55 42 63 14 54 82 89 91 90 39 25 33 21 87 34 37 56 91 90 24 86 43 10 54 76 91 90 82 56 52 28 26 54 53 91 90 55 42 91 90 81 21 40 33 63 87 60 91 90 24 76 28 10 61 91... | THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 224 | 335 | cipher_museum | 2.0 | public | null | null |
cda-0002566 | PELCG BTENC ULERJ NEQFC NGVRA PRNAQ PNERS HYGUV AXVAT | PELCG BTENC ULERJ NEQFC NGVRA PRNAQ PNERS HYGUV AXVAT | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
fialka-v2-0483 | AIYEQZJBLKXZLTVYZZLUPCKYMXXGEXWVYBBHRUBVMFEGNGCUJCZQLQQZQNGZCBSBYMSZRQDVQYKJKIBIKOTT | AIYEQZJBLKXZLTVYZZLUPCKYMXXGEXWVYBBHRUBVMFEGNGCUJCZQLQQZQNGZCBSBYMSZRQDVQYKJKIBIKOTT | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | fialka | fialka | machine | {
"type": "seed",
"value": "SPUTNIK"
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
affine-501 | GQZ IMNCTZ NJ JZFDMZC | GQZ IMNCTZ NJ JZFDMZC | THE BRIDGE IS SECURED | affine | affine | substitution | {
"a": 23,
"b": 11
} | beginner | en | 18 | 21 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0224 | ILIFOARTACUFDLKTIAPAUPIAVARSUKLVAKFRJAFIIAURATPIUSGUSTAPMURTMUSIASEMJJASIFORAS | ILIFOARTACUFDLKTIAPAUPIAVARSUKLVAKFRJAFIIAURATPIUSGUSTAPMURTMUSIASEMJJASIFORAS | LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
copiale-v3-0043 | I5 R8 A6 A6 B8 R5 K4 T0 R1 K0 O5 B6 C8 L9 T1 L6 N2 L5 J9 U6 O1 S1 | I5 R8 A6 A6 B8 R5 K4 T0 R1 K0 O5 B6 C8 L9 T1 L6 N2 L5 J9 U6 O1 S1 | MESSAGE RECEIVED CLEARLY | copiale | copiale | substitution | {
"type": "keyword",
"value": "MASONIC"
} | advanced | en | 44 | 65 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0271 | OOEIBNFRVNSNAODDCIOETERDEEFRHHSNAISNMCETENYLLOAAGSIOTLADNERENIHANEDBETVSEDYAA | OOEIBNFRVNSNAODDCIOETERDEEFRHHSNAISNMCETENYLLOAAGSIOTLADNERENIHANEDBETVSEDYAA | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 9
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0113 | SGPHSOPLOANRPIKUKLOBNKFBKNOQNFPTTGMNFSSGCPIGUAKUNLSEFNBATNOTNOFNULGSHTUAVTCRNVKSEIKUMYDNCPPOVLOASRACLUPOLEULPLQLNMSGAUNOFNQGUAUPLOQNYSHTOASRACLUBTZBOALIFNBANTUAHBTQONGXTFPTMBMNETNUSX | SGPHSOPLOANRPIKUKLOBNKFBKNOQNFPTTGMNFSSGCPIGUAKUNLSEFNBATNOTNOFNULGSHTUAVTCRNVKSEIKUMYDNCPPOVLOASRACLUPOLEULPLQLNMSGAUNOFNQGUAUPLOQNYSHTOASRACLUBTZBOALIFNBANTUAHBTQONGXTFPTMBMNETNUSX | 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 | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 182 | 182 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0048 | TDDQHRVJNDGOTOQTPRTIGRTLHFTIYIHYOQYFRKDTXOFTIXKTNQOJIDYAROPNRTQOQTPR | TDDQHRVJNDGOTOQTPRTIGRTLHFTIYIHYOQYFRKDTXOFTIXKTNQOJIDYAROPNRTQOQTPR | ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
one-time-pad-077 | SFBGDHZAJTTOQ | SFBGDHZAJTTOQ | THE KING IS DEAD | one_time_pad | one_time_pad | stream | {
"type": "pad",
"value": "ZYXWVUTS (repeating)"
} | expert | en | 13 | 13 | cipher_museum | 0.2 | public | null | null |
columnar-transposition-v3-0614 | ENFMOTEEIGETOLNTENYFICINYGEMROESHPORIDIWMIOOHPHAONCSVSTIHEROASNRASTUCWRMREEIEIRTLEBTNEELTASNEFONEUFNTTEATSTTGENUNPLVOVTSCTDHOOLOHOUONGNOREEREBDTHSEFPTAIITVTIDNIS | ENFMOTEEIGETOLNTENYFICINYGEMROESHPORIDIWMIOOHPHAONCSVSTIHEROASNRASTUCWRMREEIEIRTLEBTNEELTASNEFONEUFNTTEATSTTGENUNPLVOVTSCTDHOOLOHOUONGNOREEREBDTHSEFPTAIITVTIDNIS | WHENEVER ANY FORM OF GOVERNMENT BECOMES DESTRUCTIVE OF THESE ENDS IT IS THE RIGHT OF THE PEOPLE TO ALTER OR TO ABOLISH IT AND TO INSTITUTE NEW GOVERNMENT LAYING ITS FOUNDATION ON SUCH PRINCIPLES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
geez-monastic-025 | KHNTSDTHKQENATS | KHNTSDTHKQENATS | SILENCE IS GOLDEN | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "GEEZ"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
playfair-v2-0918 | GOCMTNPGGONLPCZLTPOPWZGEEWTNEMWBEZDOGWPWBSOBPNGETCZIFZPOWTKNMPGAOBOCAWHOATQZ | GOCMTNPGGONLPCZLTPOPWZGEEWTNEMWBEZDOGWPWBSOBPNGETCZIFZPOWTKNMPGAOBOCAWHOATQZ | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
cda-0015104 | SWXWK ODUGA AEXXX KUGZS BIKOH HIXCI UEAWT NHJYR FAEIV URMCC ESUNZ KQZGU ZUJZS RJINP ZFWBM BKHEZ PCPQH APFNZ JWLIT PKNYY TXCGS EJYQT VNXBT NTLOT VQSKZ QLWJK UYVCN YCTOB DWYNU HTNOG HZKES XPBWO GBXEH TQRQD NAXDX EXJSM YZYNU QLIQX ZVPHM JBYZD DLGS | SWXWK ODUGA AEXXX KUGZS BIKOH HIXCI UEAWT NHJYR FAEIV URMCC ESUNZ KQZGU ZUJZS RJINP ZFWBM BKHEZ PCPQH APFNZ JWLIT PKNYY TXCGS EJYQT VNXBT NTLOT VQSKZ QLWJK UYVCN YCTOB DWYNU HTNOG HZKES XPBWO GBXEH TQRQD NAXDX EXJSM YZYNU QLIQX ZVPHM JBYZD DLGS | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS | one_time_pad | one_time_pad | null | {} | hard | en | 204 | 204 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
culper-ring-v3-0052 | 998 803 814 999 118 139 998 806 804 813 819 811 804 999 151 107 154 998 813 808 806 807 819 999 998 814 811 803 999 998 800 806 804 999 998 818 807 814 820 811 803 999 998 801 820 817 813 999 102 998 817 800 821 804 999 116 998 802 811 814 818 804 999 101 184 998 817 800 806 804 999 998 817 800 806 804 999 | 998 803 814 999 118 139 998 806 804 813 819 811 804 999 151 107 154 998 813 808 806 807 819 999 998 814 811 803 999 998 800 806 804 999 998 818 807 814 820 811 803 999 998 801 820 817 813 999 102 998 817 800 821 804 999 116 998 802 811 814 818 804 999 101 184 998 817 800 806 804 999 998 817 800 806 804 999 | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 231 | 307 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v2-0168 | YALGQILJWSTYKLYPZJZRRZZVULLULHFEACHAAAYFIANHGKW | YALGQILJWSTYKLYPZJZRRZZVULLULHFEACHAAAYFIANHGKW | THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "FLORENCE"
} | advanced | en | 47 | 47 | cipher_museum | 2.0 | public | null | null |
cardano-autokey-v3-0029 | FALVVHFQOTLSRVGQAUVT | FALVVHFQOTLSRVGQAUVT | THE REDCOATS ARE COMING | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "MILAN"
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0021475 | HLUA RUVX POTL ZJAC DNSN RLAT VJQO NBOV EUFW JYQM CLAA JGIF YQAJ LINO FZCS AEDY QYWA YOWW WHSQ UUAD PGHH P | HLUA RUVX POTL ZJAC DNSN RLAT VJQO NBOV EUFW JYQM CLAA JGIF YQAJ LINO FZCS AEDY QYWA YOWW WHSQ UUAD PGHH P | THE ARCHITECTURE SHOULD MAKE MISUSE HARDER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES | vernam | vernam | null | {} | hard | en | 85 | 85 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0013277 | 44 23 15 34 33 15 44 24 32 15 35 11 14 24 43 44 23 15 34 42 15 44 24 13 11 31 31 54 45 33 12 42 15 11 25 11 12 31 15 24 21 45 43 15 14 13 34 42 42 15 13 44 31 54 15 33 44 42 34 35 54 32 15 11 43 45 42 15 43 45 33 13 15 42 44 11 24 33 44 54 24 33 11 14 24 43 44 42 24 12 45 44 24 34 33 12 15 11 45 21 34 42 44 24 43 44 23... | 44 23 15 34 33 15 44 24 32 15 35 11 14 24 43 44 23 15 34 42 15 44 24 13 11 31 31 54 45 33 12 42 15 11 25 11 12 31 15 24 21 45 43 15 14 13 34 42 42 15 13 44 31 54 15 33 44 42 34 35 54 32 15 11 43 45 42 15 43 45 33 13 15 42 44 11 24 33 44 54 24 33 11 14 24 43 44 42 24 12 45 44 24 34 33 12 15 11 45 21 34 42 44 24 43 44 23... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG | polybius | polybius | null | {} | hard | en | 189 | 189 | synthetic_educational | null | null | [
"pair_decode",
"frequency_analysis"
] | Polybius square: 5×5 grid maps letters to two-digit row-column pairs. |
geheimschreiber-v2-0115 | CYAADDHGULTPDQIQAMLBJMAQNMDVAZGMOTVOMHHQAHIJICQAZHCEHDBFSAKUBIYGRJDRWGWAALYFERCGZVVCFUYZSEJZHZNSNPHXWJYGSAITLSSAAHVNHQAKCARQWMUBKXLGQUZLUUORUIEECUHHYARMOVHRXBNZQ | CYAADDHGULTPDQIQAMLBJMAQNMDVAZGMOTVOMHHQAHIJICQAZHCEHDBFSAKUBIYGRJDRWGWAALYFERCGZVVCFUYZSEJZHZNSNPHXWJYGSAITLSSAAHVNHQAKCARQWMUBKXLGQUZLUUORUIEECUHHYARMOVHRXBNZQ | 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 | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "BERLIN"
} | expert | en | 161 | 161 | cipher_museum | 2.0 | public | null | null |
cda-0016145 | 4 9 6 6 9 5 1 14 4 8 5 12 12 13 1 14 9 14 20 18 15 4 21 3 5 4 16 21 2 12 9 3 11 5 25 3 18 25 16 20 15 7 18 1 16 8 25 9 14 14 9 14 5 20 5 5 14 19 5 22 5 14 20 25 19 9 24 16 5 18 8 1 16 19 | 4 9 6 6 9 5 1 14 4 8 5 12 12 13 1 14 9 14 20 18 15 4 21 3 5 4 16 21 2 12 9 3 11 5 25 3 18 25 16 20 15 7 18 1 16 8 25 9 14 14 9 14 5 20 5 5 14 19 5 22 5 14 20 25 19 9 24 16 5 18 8 1 16 19 | DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX PERHAPS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 74 | 74 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
kryptos-098 | AUYJPSEFDDBNCLYHGIQMDPYWPHZXAIDEBLPRGXNITHUKY | AUYJPSEFDDBNCLYHGIQMDPYWPHZXAIDEBLPRGXNITHUKY | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "PALIMPSEST"
} | advanced | en | 45 | 45 | cipher_museum | 0.2 | public | null | null |
cardano-autokey-v2-0283 | MZRVDDLLDDKK | MZRVDDLLDDKK | VENI VIDI VICI | cardano_autokey | cardano_autokey | polyalphabetic | {
"type": "keyword",
"value": "ROME"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
cda-0019034 | K r· L ┐ ⌐ X Γ· X ┐ Γ· L ⌣ ⌐ ┌ Γ· ─ ⌐ K Γ· ┘· ─ ⌐· Γ· ─ Γ X ┌· L ┐· L ⌐ K L Γ K ┌· Γ· ¬· ┌· ⌐ ┌ X Γ· ─ r Γ· ┐· r· L ┌· K L ⌣ K | K r· L ┐ ⌐ X Γ· X ┐ Γ· L ⌣ ⌐ ┌ Γ· ─ ⌐ K Γ· ┘· ─ ⌐· Γ· ─ Γ X ┌· L ┐· L ⌐ K L Γ K ┌· Γ· ¬· ┌· ⌐ ┌ X Γ· ─ r Γ· ┐· r· L ┌· K L ⌣ K | THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | pigpen | pigpen | null | {} | easy | en | 20 | 20 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0013227 | heavy incur lower lower carry inner phase house enter right under swift enter scout lines inner north extra array raids after light gains early basis | heavy incur lower lower carry inner phase house enter right under swift enter scout lines inner north extra array raids after light gains early basis | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | 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. |
affine-v2-1795 | VUTI VIXI VIAI | VUTI VIXI VIAI | VENI VIDI VICI | affine | affine | substitution | {
"a": 23,
"b": 6
} | beginner | en | 12 | 14 | cipher_museum | 2.0 | public | null | null |
chaocipher-v2-0176 | XEBQXFPALCPOHBXXUAKAZXEEBKPMMYVHWTVKSEDNRQUAILMCYBXIMEACMDWZMGYTOVGRIRSYUI | XEBQXFPALCPOHBXXUAKAZXEEBKPMMYVHWTVKSEDNRQUAILMCYBXIMEACMDWZMGYTOVGRIRSYUI | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "LIBERTY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0014807 | 3 1 5 19 1 18 19 8 9 6 20 5 4 20 8 5 1 12 16 8 1 2 5 20 2 25 20 8 18 5 5 16 15 19 9 20 9 15 14 19 8 9 12 12 3 9 16 8 5 18 21 19 5 19 12 9 14 5 1 18 1 12 7 5 2 18 1 20 15 5 14 3 18 25 16 20 2 12 15 3 11 19 15 6 12 5 20 20 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 ... | 3 1 5 19 1 18 19 8 9 6 20 5 4 20 8 5 1 12 16 8 1 2 5 20 2 25 20 8 18 5 5 16 15 19 9 20 9 15 14 19 8 9 12 12 3 9 16 8 5 18 21 19 5 19 12 9 14 5 1 18 1 12 7 5 2 18 1 20 15 5 14 3 18 25 16 20 2 12 15 3 11 19 15 6 12 5 20 20 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 ... | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 189 | 189 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
red-type-a-v2-0307 | AJQIIRWOKBWISLCEMKUHOYCUBNIDDOFTAFARNIQACBOMCIIWLCYATIQTIXYNUDTBEOATFANIFOV | AJQIIRWOKBWISLCEMKUHOYCUBNIDDOFTAFARNIQACBOMCIIWLCYATIQTIXYNUDTBEOATFANIFOV | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "TOKYO"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
copiale-v2-0308 | W9 A5 S9 L0 V8 K6 A1 O7 V8 R0 E6 K8 F1 N4 P9 G3 H3 U2 N2 Y8 R0 C5 Y0 B8 U6 F7 O9 H9 D6 A5 D8 I0 J0 O7 D6 B8 H0 Q6 G3 U6 R7 J6 A4 U0 B9 L3 U2 M1 A4 I0 S6 V7 W2 O9 Q6 Y0 J6 U1 U0 V3 L3 U8 X4 V4 F5 V0 W4 | W9 A5 S9 L0 V8 K6 A1 O7 V8 R0 E6 K8 F1 N4 P9 G3 H3 U2 N2 Y8 R0 C5 Y0 B8 U6 F7 O9 H9 D6 A5 D8 I0 J0 O7 D6 B8 H0 Q6 G3 U6 R7 J6 A4 U0 B9 L3 U2 M1 A4 I0 S6 V7 W2 O9 Q6 Y0 J6 U1 U0 V3 L3 U8 X4 V4 F5 V0 W4 | I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH | copiale | copiale | substitution | {
"type": "keyword",
"value": "MYSTERY"
} | advanced | en | 134 | 200 | cipher_museum | 2.0 | public | null | null |
bifid-v2-0186 | TSQTCHPIOFSZIGKTSFDOHNVSVVTCWQBMVKMFGFAUXASLBOULBNBZIAZLWWNDDBNEGANUBCOZESWL | TSQTCHPIOFSZIGKTSFDOHNVSVVTCWQBMVKMFGFAUXASLBOULBNBZIAZLWWNDDBNEGANUBCOZESWL | ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
hill-089 | XQKWZABFHZZMFDOE | XQKWZABFHZZMFDOE | LOCK DOWN ALL GATES | hill | hill | polygraphic | {
"a": 3,
"b": 3,
"c": 2,
"d": 7
} | advanced | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
red-type-a-206 | FIKMAKPDYDVZBON | FIKMAKPDYDVZBON | FORWARD MARCH NOW | red_type_a | red_type_a | machine | {
"type": "keyword",
"value": "MUSEUM"
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.