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52
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stringlengths
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2.11k
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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
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2 values
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stringclasses
2 values
split
stringclasses
1 value
attack_methods
listlengths
0
3
educational_note
stringclasses
32 values
purple-v2-0274
TKNGZPVFQRYUEORY
TKNGZPVFQRYUEORY
DIVIDE AND CONQUER
purple
purple
machine
{ "type": "seed", "value": "SAKURA" }
expert
en
16
16
cipher_museum
2.0
public
null
null
lorenz-221
FOURSCOREANDSEVFNYEARSCGOOURFATHERSBROUGHTBORTHTHISNARION
FOURSCOREANDSEVFNYEARSCGOOURFATHERSBROUGHTBORTHTHISNARION
FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION
lorenz
lorenz
machine
{ "type": "seed", "value": "MUSEUM" }
expert
en
57
57
cipher_museum
0.2
public
null
null
geheimschreiber-v3-0256
XOWFVMKEATBFZPXFZVZXQMKUSIBYGEUCZRGPHNXTUUCCDWLQSVWZSFTPSCHPWMLXGMZJZJHZLHTITBWBGLQIIGM
XOWFVMKEATBFZPXFZVZXQMKUSIBYGEUCZRGPHNXTUUCCDWLQSVWZSFTPSCHPWMLXGMZJZJHZLHTITBWBGLQIIGM
CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "GOTHIC" }
expert
en
87
87
cipher_museum
2.0
public
null
null
cda-0008038
VAQRK BS PBVAPVQRAPR ZRNFHERF YRGGRE SERDHRAPL QVFGEVOHGVBA TBBQ RQHPNGVBANY GBBYF RKCYNVA GURVE YVZVGF GBZBEEBJ
VAQRK BS PBVAPVQRAPR ZRNFHERF YRGGRE SERDHRAPL QVFGEVOHGVBA TBBQ RQHPNGVBANY GBBYF RKCYNVA GURVE YVZVGF GBZBEEBJ
INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS TOMORROW
rot13
rot13
null
{ "shift": 13 }
hard
en
99
99
synthetic_educational
null
null
[]
fialka-v2-0086
EPCMQJZVEUCWZXILLPTQRWQFVFMMKGOGLFSVHFVVBWEYMLHICTYYNXLDDQNVNVEXMBWNOSKXZARXDDL
EPCMQJZVEUCWZXILLPTQRWQFVFMMKGOGLFSVHFVVBWEYMLHICTYYNXLDDQNVNVEXMBWNOSKXZARXDDL
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
79
79
cipher_museum
2.0
public
null
null
adfgx-v3-0556
GGAFDAGGFFAGAXAFAGFAAXGFGAGDXXGXGGDXXGXGXXFGXXGAGDGXAXAGFADGGGAGDFGGGGDADDGAGDAAAXAXAXFGDGGFGGFDAXXAXDGXDGGFDGGXGGGDDAGXAAXAGGGGFGDGAFAGAADAAGDAGAADAAGAAA
GGAFDAGGFFAGAXAFAGFAAXGFGAGDXXGXGGDXXGXGXXFGXXGAGDGXAXAGFADGGGAGDFGGGGDADDGAGDAAAXAXAXFGDGGFGGFDAXXAXDGXDGGFDGGXGGGDDAGXAAXAGGGGFGDGAFAGAADAAGDAGAADAAGAAA
THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES
adfgx
adfgx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
154
154
cipher_museum
2.0
public
null
null
cda-0013779
DOUB XETR AZSP OSXT IONA PPLI XSCO LUMN ARXN CRYP TION TWIC ETHE VIZE NERE CIPH ZRUS EZAR EPEA TINX KEYW ZRDC LZSS ICAL CIPX ERST ZACH WHYM ODXR NSEZ URIT ZMAT TZRS XDB
DOUB XETR AZSP OSXT IONA PPLI XSCO LUMN ARXN CRYP TION TWIC ETHE VIZE NERE CIPH ZRUS EZAR EPEA TINX KEYW ZRDC LZSS ICAL CIPX ERST ZACH WHYM ODXR NSEZ URIT ZMAT TZRS XDB
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE VIGENERE CIPHER USES A REPEATING KEYWORD CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS
commercial_code
commercial_code
null
{}
hard
en
135
135
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
trifid-v3-0027
UCEYHGYPBKENTATZRAMA
UCEYHGYPBKENTATZRAMA
THE COMPASS POINTS TRUE
trifid
trifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
two-square-v2-0239
CAWELRWDDVPPCEOZ
CAWELRWDDVPPCEOZ
CAVALRY ADVANCES
two_square
two_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
typex-226
EFOSRUCLDCHGTARYVTIVHBQHSVDKAWAGZMYULMVKAQHVADMWJSOJNPFVR
EFOSRUCLDCHGTARYVTIVHBQHSVDKAWAGZMYULMVKAQHVADMWJSOJNPFVR
FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION
typex
typex
machine
{ "type": "keyword", "value": "SECRET" }
expert
en
57
57
cipher_museum
0.2
public
null
null
solitaire-v2-0142
GTEETSGEVIRRBQ
GTEETSGEVIRRBQ
COVER MY RETREAT
solitaire
solitaire
stream
{ "type": "passphrase", "value": "SCHNEIER" }
expert
en
14
14
cipher_museum
2.0
public
null
null
scytale-049
TOONBWEHOERTNHOETRTTOIBSENTOHBALTEIRSITNHTEHQEUMEISNTDIX
TOONBWEHOERTNHOETRTTOIBSENTOHBALTEIRSITNHTEHQEUMEISNTDIX
TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND
scytale
scytale
transposition
{ "type": "integer", "value": 2 }
intermediate
en
56
56
cipher_museum
0.2
public
null
null
vigenere-v3-1369
VVYBITKFSGRNJWHSUCTE
VVYBITKFSGRNJWHSUCTE
THE KING DEMANDS FEALTY
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "COURAGE" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
m209-v3-0347
JWZAMPTBYETSL
JWZAMPTBYETSL
THE APPLE FALLS
m209
m209
machine
{ "type": "seed", "value": "VICTORY" }
expert
en
13
13
cipher_museum
2.0
public
null
null
joseon-yeokhak-v3-0383
FWOLGFKSOLZWSHHDWXSDDSFVAFLMALWVLZWKSEWXGJUWLZSLZGDVKLZWHDSFWLKAFLZWAJHSLZK
FWOLGFKSOLZWSHHDWXSDDSFVAFLMALWVLZWKSEWXGJUWLZSLZGDVKLZWHDSFWLKAFLZWAJHSLZK
NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "DYNASTY" }
beginner
en
75
75
cipher_museum
2.0
public
null
null
red-type-a-v3-0297
JNAETXKEVBEOGWOMUEHIWQTICUVKOKAJOCYVTERTADUGBEYDGYXPOVAHSTFOBGYNUCFIKSDOWUKPOLWUQEH
JNAETXKEVBEOGWOMUEHIWQTICUVKOKAJOCYVTERTADUGBEYDGYXPOVAHSTFOBGYNUCFIKSDOWUKPOLWUQEH
RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "TOKYO" }
advanced
en
83
83
cipher_museum
2.0
public
null
null
typex-v2-0018
FXCDFRXIQSWMP
FXCDFRXIQSWMP
AWAIT MY SIGNAL
typex
typex
machine
{ "type": "keyword", "value": "LONDON" }
expert
en
13
13
cipher_museum
2.0
public
null
null
kama-sutra-v3-0138
CEM HYCQUHMLU ICEMU
CEM HYCQUHMLU ICEMU
OLD IRONSIDES HOLDS
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "VATSYANA" }
intermediate
en
17
19
cipher_museum
2.0
public
null
null
purple-v2-0001
AWMCXHFSJAWY
AWMCXHFSJAWY
THE DIE IS CAST
purple
purple
machine
{ "type": "seed", "value": "TOKYO" }
expert
en
12
12
cipher_museum
2.0
public
null
null
two-square-v2-0436
QNEKOPMOKIPBPUCLFTQACQEAPBOMEQPCNCFQTODEPBDOLHNNHEHAZKENGTIMFAXFDBNEDRCIQTERHAYX
QNEKOPMOKIPBPUCLFTQACQEAPBOMEQPCNCFQTODEPBDOLHNNHEHAZKENGTIMFAXFDBNEDRCIQTERHAYX
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
two_square
two_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
monoalphabetic-v2-0181
FNIY KS JKNQBENJ VCNACJCF PUNNEJTENP FQ FLLKIFQQKX RKUNQBKUPE QBE WFN CJ QBE EFPQ CP KVEN
FNIY KS JKNQBENJ VCNACJCF PUNNEJTENP FQ FLLKIFQQKX RKUNQBKUPE QBE WFN CJ QBE EFPQ CP KVEN
ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "FORTRESS" }
beginner
en
75
89
cipher_museum
2.0
public
null
null
atbash-v3-0097
GSV OLIW LFI TLW RH LMV OLIW ZMW GSLF HSZOG OLEV GSV OLIW GSB TLW DRGS ZOO GSRMV SVZIG ZMW DRGS ZOO GSB HLFO ZMW DRGS ZOO GSB NRTSG ZMW GSVHV DLIWH DSRXS R XLNNZMW GSVV GSRH WZB HSZOO YV RM GSRMV SVZIG
GSV OLIW LFI TLW RH LMV OLIW ZMW GSLF HSZOG OLEV GSV OLIW GSB TLW DRGS ZOO GSRMV SVZIG ZMW DRGS ZOO GSB HLFO ZMW DRGS ZOO GSB NRTSG ZMW GSVHV DLIWH DSRXS R XLNNZMW GSVV GSRH WZB HSZOO YV RM GSRMV SVZIG
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
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
en
159
201
cipher_museum
2.0
public
null
null
geheimschreiber-v2-0364
AEWZKBOCTNGHFSWCRMIBDVBDZSDBACXGEAGRCAOFTJBSUGPICBOORKGUBOPHIXZLKSCOSRMRPLAHQRSNALSJIYFEMWAJNESATEFEMOALPTIYUMRGQVBFZSDQRXYEHNBJFVBZTEMGPTVXUJDGRBTIVJK
AEWZKBOCTNGHFSWCRMIBDVBDZSDBACXGEAGRCAOFTJBSUGPICBOORKGUBOPHIXZLKSCOSRMRPLAHQRSNALSJIYFEMWAJNESATEFEMOALPTIYUMRGQVBFZSDQRXYEHNBJFVBZTEMGPTVXUJDGRBTIVJK
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
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "GOTHIC" }
expert
en
151
151
cipher_museum
2.0
public
null
null
m209-v2-0066
LXXWXGKQWJXATPMBWLJWABZUUOSVPWQYHWKBOPESARPRGTZZVZPALWZUNSFNPZUMJQBAPKLCQBTPX
LXXWXGKQWJXATPMBWLJWABZUUOSVPWQYHWKBOPESARPRGTZZVZPALWZUNSFNPZUMJQBAPKLCQBTPX
THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING
m209
m209
machine
{ "type": "seed", "value": "ARMY" }
expert
en
77
77
cipher_museum
2.0
public
null
null
alberti-disk-v2-0204
JXAXRAQHANSKOLAIBROLMSSYJSTNGCXGVTPDLZKDOPBSZVCJXYYPXKLFAWFOPEDPPGMWAVSLIAOQU
JXAXRAQHANSKOLAIBROLMSSYJSTNGCXGVTPDLZKDOPBSZVCJXYYPXKLFAWFOPEDPPGMWAVSLIAOQU
NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 5 }
expert
en
77
77
cipher_museum
2.0
public
null
null
cda-0014105
WOL-LA-CHEE / DIBEH-YAZZIE / WOL-LA-CHEE / TSAH / THAN-ZIE / NO-DA-IH / GAH / TKIN / TSAH / AH-JAH / SHUSH / GAH / A-KHA / KLIZZIE / DZEH / DZEH / TSAH / TKIN / AH-JAH / NA-AS-TSO-SI / WOL-LA-CHEE / GLOE-IH / TKIN / THAN-ZIE /...
WOL-LA-CHEE / DIBEH-YAZZIE / WOL-LA-CHEE / TSAH / THAN-ZIE / NO-DA-IH / GAH / TKIN / TSAH / AH-JAH / SHUSH / GAH / A-KHA / KLIZZIE / DZEH / DZEH / TSAH / TKIN / AH-JAH / NA-AS-TSO-SI / WOL-LA-CHEE / GLOE-IH / TKIN / THAN-ZIE /...
ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY
navajo_code
navajo_code
null
{}
hard
en
214
214
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
cda-0003850
NYNAG HEVAT OEBXR RAVTZ NJVGU PEVOF NAQGU ROBZO RZNPU VARCH OYVPV ASENF GEHPG HERQR FREIR FPNER SHYQR FVTAG URSEV RQZNA GRFGH FRFGU RVAQR KBSPB VAPVQ RAPRG BRFGV ZNGRX RLYRA TGU
NYNAG HEVAT OEBXR RAVTZ NJVGU PEVOF NAQGU ROBZO RZNPU VARCH OYVPV ASENF GEHPG HERQR FREIR FPNER SHYQR FVTAG URSEV RQZNA GRFGH FRFGU RVAQR KBSPB VAPVQ RAPRG BRFGV ZNGRX RLYRA TGU
ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH
rot13
rot13
null
{ "shift": 13 }
hard
en
148
148
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
enigma-v2-0176
UNCBKZEEIZPWHFLQVNUEIKZKERZXGRWVFQFCPCVTADGTDUHLGQTCYRRWFAWACUPOOYKWPLCGWP
UNCBKZEEIZPWHFLQVNUEIKZKERZXGRWVFQFCPCVTADGTDUHLGQTCYRRWFAWACUPOOYKWPLCGWP
GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW
enigma
enigma
machine
{ "type": "rotor_start", "value": "DEF" }
expert
en
74
74
cipher_museum
2.0
public
null
null
alberti-disk-v3-0582
WPJSSEEAKCPRENFRAXVJNOLZWTZMTXYNHLOFJZZFCVMUBCTIXHKRTSHKVKFSIUIWOEERFQLMC
WPJSSEEAKCPRENFRAXVJNOLZWTZMTXYNHLOFJZZFCVMUBCTIXHKRTSHKVKFSIUIWOEERFQLMC
THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 14 }
expert
en
73
73
cipher_museum
2.0
public
null
null
cda-0022138
SROOX RKSVI FHVHO RMVZI ZOTVY IZGLV MXIBK GYOLX PHLUO VGGVI H
SROOX RKSVI FHVHO RMVZI ZOTVY IZGLV MXIBK GYOLX PHLUO VGGVI H
HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS
atbash
atbash
null
{}
medium
en
51
51
synthetic_educational
null
null
[ "self_inverse_check", "frequency_analysis" ]
Atbash maps A↔Z, B↔Y, … and is its own inverse.
cda-0018032
EGIH MBVN NDMC TPWA TBDN POMB KXEQ OEAC OXYP CAUY GUZB OHRE XZNT TAPO KNQQ WUCH UONU WVKP NDEY OHHA ETQR LDPP ZXGN HVNM ZSON EXZL RBBE YEUY CDVK YRNI CFAL GVBX FDHE YSIS ECSB AZOG COJD HCPG TTDU SPTM NSMI WZIX RJAY O
EGIH MBVN NDMC TPWA TBDN POMB KXEQ OEAC OXYP CAUY GUZB OHRE XZNT TAPO KNQQ WUCH UONU WVKP NDEY OHHA ETQR LDPP ZXGN HVNM ZSON EXZL RBBE YEUY CDVK YRNI CFAL GVBX FDHE YSIS ECSB AZOG COJD HCPG TTDU SPTM NSMI WZIX RJAY O
THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ATBASH ENCODES BY REVERSING THE ALPHABET CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS
vernam
vernam
null
{}
hard
en
173
173
synthetic_educational
null
null
[ "key_reuse_attack", "information_theoretic_proof" ]
Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP.
sigaba-v3-0065
GXFFZXXQHCGZYLLSSSNTSZJIGMHIXEHRDYNLWOMOVNFTJRWWNJGUSCRRCZKROCEXWWLQOTLRZIJ
GXFFZXXQHCGZYLLSSSNTSZJIGMHIXEHRDYNLWOMOVNFTJRWWNJGUSCRRCZKROCEXWWLQOTLRZIJ
THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL
sigaba
sigaba
machine
{ "type": "seed", "value": "ECMMARK" }
expert
en
75
75
cipher_museum
2.0
public
null
null
autokey-v2-0351
LTFEZTATLISBEVVAIKTVKWBMUOEVNSIPGTVXJSBTKCPMEQJZTWYUPKDXTXXRTBDBTBVFFOGAY
LTFEZTATLISBEVVAIKTVKWBMUOEVNSIPGTVXJSBTKCPMEQJZTWYUPKDXTXXRTBDBTBVFFOGAY
ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
73
73
cipher_museum
2.0
public
null
null
rail-fence-vg-0042
TCTTSHTHSAAHOTEAMNNSIPWADS
TCTTSHTHSAAHOTEAMNNSIPWADS
THE WATCHMAN STANDS AT HIS POST
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 4 }
intermediate
en
26
26
cipher_museum
2.0
public
null
null
autokey-v2-0606
UCTXZVKLTJXWKGTPZGNKONPRZWKHWPSYCKLFJAZWLKHSBYIJWZBEFTZSITCUGIWFJUEZITKISX
UCTXZVKLTJXWKGTPZGNKONPRZWKHWPSYCKLFJAZWLKHSBYIJWZBEFTZSITCUGIWFJUEZITKISX
LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
74
74
cipher_museum
2.0
public
null
null
nihilist-044
48 58 69 85 50 75 76 70 108 59 70 76 59 57 66 55 70 96 65 39 86 67 70 67 49 39 78 79 58 79 57 40 97 79 40 68 55 70 96 79 58 79 57 36 79 86
48 58 69 85 50 75 76 70 108 59 70 76 59 57 66 55 70 96 65 39 86 67 70 67 49 39 78 79 58 79 57 40 97 79 40 68 55 70 96 79 58 79 57 36 79 86
I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW
nihilist
nihilist
fractionation
{ "polybius": "RUSSIAN", "keyword": "KEY" }
advanced
en
93
138
cipher_museum
0.2
public
null
null
scytale-v3-0264
GONANNTAMNENTTIEPTANNEIINPEISOIPNOEEROETUESNTRSNDESRPAYCPTIDICINNEIHSXSERDINROOX
GONANNTAMNENTTIEPTANNEIINPEISOIPNOEEROETUESNTRSNDESRPAYCPTIDICINNEIHSXSERDINROOX
GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED
scytale
scytale
transposition
{ "type": "integer", "value": 10 }
intermediate
en
80
80
cipher_museum
2.0
public
null
null
cda-0020126
6.2.1 14.5.3 16.6.4 6.1.7 8.3.1 14.5.9 10.4.4 5.2.8 16.2.1 15.2.3 9.1.8 13.6.1 14.3.9 5.6.5 14.5.8 11.1.3 5.2.8 1.6.4 14.6.10 11.4.5 6.5.2 20.5.3 8.1.8 2.4.4 16.6.9 20.5.3 5.3.4 5.4.2 7.2.1 19.6.1 11.5.4 20.5.9 14.1.3 15.5.4 20.4.4 3.3.10 5.6.4 10.6.2 16.2.8 6.4.8 14.3.7 2.2.8 4.2.4 11.1.10 2.1.4 2.4.4 3.6.2 7.2.7 16.4...
6.2.1 14.5.3 16.6.4 6.1.7 8.3.1 14.5.9 10.4.4 5.2.8 16.2.1 15.2.3 9.1.8 13.6.1 14.3.9 5.6.5 14.5.8 11.1.3 5.2.8 1.6.4 14.6.10 11.4.5 6.5.2 20.5.3 8.1.8 2.4.4 16.6.9 20.5.3 5.3.4 5.4.2 7.2.1 19.6.1 11.5.4 20.5.9 14.1.3 15.5.4 20.4.4 3.3.10 5.6.4 10.6.2 16.2.8 6.4.8 14.3.7 2.2.8 4.2.4 11.1.10 2.1.4 2.4.4 3.6.2 7.2.7 16.4...
THE ARCHITECTURE SHOULD MAKE MISUSE HARDER POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE
arnold_andre
arnold_andre
null
{}
hard
en
88
88
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
cda-0006165
PNRFNE FUVSGRQ GUR NYCUNORG OL GUERR CBFVGVBAF GUR XNFVFXV RKNZVANGVBA SVAQF ERCRNGRQ GEVTENZF VA PVCUREGRKG
PNRFNE FUVSGRQ GUR NYCUNORG OL GUERR CBFVGVBAF GUR XNFVFXV RKNZVANGVBA SVAQF ERCRNGRQ GEVTENZF VA PVCUREGRKG
CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT
rot13
rot13
null
{ "shift": 13 }
hard
en
94
94
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
rot13-013
RARZL SBEPRF ARNE
RARZL SBEPRF ARNE
ENEMY FORCES NEAR
rot13
rot13
substitution
{ "type": "none", "value": null }
beginner
en
15
17
cipher_museum
0.2
public
null
null
typex-v2-0311
SJFBIRFRZPLMWQAXXYWNTOTIOHXVBKEUGTLQDDOIJQMLSNXPPHSRWWHYTCJOWDOGRRIWHSIY
SJFBIRFRZPLMWQAXXYWNTOTIOHXVBKEUGTLQDDOIJQMLSNXPPHSRWWHYTCJOWDOGRRIWHSIY
WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS
typex
typex
machine
{ "type": "keyword", "value": "EMPIRE" }
expert
en
72
72
cipher_museum
2.0
public
null
null
cda-0017831
... .. ... .... . .... . ..... .... .. ... ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... .... ... ... .. .... .... ... ... ... ... .... .... .... . .. .... .. ... .... . ... . ..... ... ... . .. ..... .... ... . . ..... .... .... .... .... . ..... .... .....
... .. ... .... . .... . ..... .... .. ... ... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... .. .... ... .... ... ... .. .... .... ... ... ... ... .... .... .... . .. .... .. ... .... . ... . ..... ... ... . .. ..... .... ... . . ..... .... .... .... .... . ..... .... .....
MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF
tap_code
tap_code
null
{}
hard
en
140
140
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.
purple-071
GGIKRVKADRFIP
GGIKRVKADRFIP
CHANGE OF PLANS
purple
purple
machine
{ "type": "seed", "value": "CIPHER" }
expert
en
13
13
cipher_museum
0.2
public
null
null
sigaba-v3-0328
IMKXQKCRUCYQQETOS
IMKXQKCRUCYQQETOS
ARCHERS TO THE WALLS
sigaba
sigaba
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
17
17
cipher_museum
2.0
public
null
null
wallis-cipher-v3-0129
90 75 44 18 55 15 91 90 45 58 63 91 90 79 81 17 66 85 67 81 91
90 75 44 18 55 15 91 90 45 58 63 91 90 79 81 17 66 85 67 81 91
CHART THE UNKNOWN
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "ENGLAND" }
expert
en
42
62
cipher_museum
2.0
public
null
null
cda-0009299
RAUC AEHO NOCI HCHE NLFC NEIT TPAF AEDN TUCP EEYO FSAF AEES FINL RNIE INOT SLSR RUHC TPEN ASHR OTEB RPEI TPOI TTIC IOON NWRR OTOO NSII OEAN RATI ALCH CCTE PT
RAUC AEHO NOCI HCHE NLFC NEIT TPAF AEDN TUCP EEYO FSAF AEES FINL RNIE INOT SLSR RUHC TPEN ASHR OTEB RPEI TPOI TTIC IOON NWRR OTOO NSII OEAN RATI ALCH CCTE PT
HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION
double_transposition
double_transposition
null
{ "key1": "SECURE", "key2": "SIGNAL" }
hard
en
126
126
synthetic_educational
null
null
[]
affine-v2-0633
DAFB JDI FKTI
DAFB JDI FKTI
HOLD THE LINE
affine
affine
substitution
{ "a": 7, "b": 6 }
beginner
en
11
13
cipher_museum
2.0
public
null
null
cda-0017595
AAAAB BAAAA BAABB BAABA AABAA AABAB ABBAB BAAAA AAABA AABAA BABAA ABBAB BAAAA ABAAB BAAAB ABBAB ABBAA ABABA BABBA BABAA AABBB AABAA ABBAA BAABA AABBB AABAA ABAAB AABAA BABBA BAAAB ABBBA AAAAA AAABA AABAA ABAAA BAAAB BAAAB ABABB AAAAA ABABA ABABA ABBBA BAABB AAAAB ABABA ABAAA AAABA ABAAA ABBAA AABAB BAAAA AAAAA BAAAB BA...
AAAAB BAAAA BAABB BAABA AABAA AABAB ABBAB BAAAA AAABA AABAA BABAA ABBAB BAAAA ABAAB BAAAB ABBAB ABBAA ABABA BABBA BABAA AABBB AABAA ABBAA BAABA AABBB AABAA ABAAB AABAA BABBA BAAAB ABBBA AAAAA AAABA AABAA ABAAA BAAAB BAAAB ABABB AAAAA ABABA ABABA ABBBA BAABB AAAAB ABABA ABAAA AAABA ABAAA ABBAA AABAB BAAAA AAAAA BAAAB BA...
BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN
bacon_cipher
bacon_cipher
null
{}
hard
en
410
410
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
cda-0021052
ERROR CORRZ CTION ANDDE TECTZ ONARE FUNDX MENTZ LTOSE CUREX YSTEM SBXCZ
ERROR CORRZ CTION ANDDE TECTZ ONARE FUNDX MENTZ LTOSE CUREX YSTEM SBXCZ
ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS
commercial_code
commercial_code
null
{}
medium
en
60
60
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-v3-0063
TIGEEYZSMXPRQGHNISMKAGWPRDDUJUIJJHGBKYPPCHJFNXLAECRXTIQXWFTKKJCFMYHXUJLHNVH
TIGEEYZSMXPRQGHNISMKAGWPRDDUJUIJJHGBKYPPCHJFNXLAECRXTIQXWFTKKJCFMYHXUJLHNVH
THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "ABCDEFGH (repeating)" }
expert
en
75
75
cipher_museum
2.0
public
null
null
kryptos-v3-0213
YQVWOEOANYZGDYKU
YQVWOEOANYZGDYKU
SOUND THE TRUMPETS
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "VIRTUAL" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
two-square-079
OLPNEIGISDEABY
OLPNEIGISDEABY
THE KING IS DEAD
two_square
two_square
polygraphic
{ "key1": "CIPHER", "key2": "MUSEUM" }
advanced
en
14
14
cipher_museum
0.2
public
null
null
vigenere-es-036
GTFBIEQTAVVRPWBHQR
GTFBIEQTAVVRPWBHQR
EL QUE NO LLORA NO MAMA
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
intermediate
es
18
18
cipher_museum
0.2
public
null
null
solitaire-v2-0022
VCBAUWXFZSFZNILZ
VCBAUWXFZSFZNILZ
DIVIDE AND CONQUER
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
16
16
cipher_museum
2.0
public
null
null
cda-0009856
O FFFBNU NZOVA BRSRF EHEABT SJVRSAQS BBSA ECHDQR FCBZG OZZBI WARSCSBQSBG HSEWNVQOGWCA FVR WBQSL BT QBWBNWRRNQR WG O GGRTIY QZHS
O FFFBNU NZOVA BRSRF EHEABT SJVRSAQS BBSA ECHDQR FCBZG OZZBI WARSCSBQSBG HSEWNVQOGWCA FVR WBQSL BT QBWBNWRRNQR WG O GGRTIY QZHS
A STRONG CLAIM NEEDS STRONG EVIDENCE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE INDEX OF COINCIDENCE IS A USEFUL CLUE
porta
porta
null
{ "key": "KEY" }
hard
en
108
108
synthetic_educational
null
null
[]
copiale-v2-0324
W9 V0 U1 C7 I0 E3 H9 O7 U8 J3 A6 N2 G3 C5 L3 F5 U1 G4 B8 J2 A2 C5 J9 O7 D3 W5 A7 I0 R7 O7 I4 C1 J0 V2 W6 O7 D3 H0 I2 Q6 J4 A6 U9 E6 W5 W2 C1 C7 Z2 V3 E6 A5 D6 K6 A7 Y0 U8 G0 O2 U0 R7 P6 A2 J4 X4 L0 J0 I0 W2
W9 V0 U1 C7 I0 E3 H9 O7 U8 J3 A6 N2 G3 C5 L3 F5 U1 G4 B8 J2 A2 C5 J9 O7 D3 W5 A7 I0 R7 O7 I4 C1 J0 V2 W6 O7 D3 H0 I2 Q6 J4 A6 U9 E6 W5 W2 C1 C7 Z2 V3 E6 A5 D6 K6 A7 Y0 U8 G0 O2 U0 R7 P6 A2 J4 X4 L0 J0 I0 W2
IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT
copiale
copiale
substitution
{ "type": "keyword", "value": "MYSTERY" }
advanced
en
138
206
cipher_museum
2.0
public
null
null
diana-v2-0143
QBBYFOHAXEWEVXHEQGQ
QBBYFOHAXEWEVXHEQGQ
CODED MESSAGE FOLLOWS
diana
diana
polyalphabetic
{ "type": "keyword", "value": "SPECIAL" }
intermediate
en
19
19
cipher_museum
2.0
public
null
null
cda-0007802
ULDC UKAZ KOCP NAVJ VVTG DLUM VVLE CQFL SAFT BUQQ AHNW GGSD IQES BAVK MZXD VAFZ QUIV BLVJ BVDN ZPJH YYPV J
ULDC UKAZ KOCP NAVJ VVTG DLUM VVLE CQFL SAFT BUQQ AHNW GGSD IQES BAVK MZXD VAFZ QUIV BLVJ BVDN ZPJH YYPV J
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
gronsfeld
gronsfeld
null
{ "key": "27183" }
hard
en
85
85
synthetic_educational
null
null
[]
cda-0013627
.. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ...
.. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ...
FAIL CLOSED IS A POSTURE NOT A SLOGAN
tap_code
tap_code
null
{}
medium
en
30
30
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.
autokey-de-012
OMTJMGZLRKDBON
OMTJMGZLRKDBON
WIR SIND DAS VOLK
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
de
14
14
cipher_museum
0.2
public
null
null
noisy-vigenere-ocr_heavy-025
LLGZRWWBOWGHAREZHXFGGDITKYTVWMZIRISUSFKCMMQXJRXMOSTRRWGQNPGAGWGEPXLXGIWTJIGHYTD
LLGZRWWBOWGHAREZHXFGGDITKYTVWMZIRISUSFKCMMQXJRXMOSTRRWGQNPGAGWGEPXLXGIWTJIGHYTD
THE INDEX OF COINCIDENCE MEASURES THE PROBABILITY THAT TWO RANDOMLY CHOSEN LETTERS ARE EQUAL
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
en
79
79
cipher_museum
0.2
public
null
null
kryptos-v2-0089
DYMMFOUAQHDJCOFHCYGQGLEPUAHHJLRZMPJHUGHMJRQEHJKJINPUSBJVCVSTZWVJYTWQVPMEGSVPCFXZ
DYMMFOUAQHDJCOFHCYGQGLEPUAHHJLRZMPJHUGHMJRQEHJKJINPUSBJVCVSTZWVJYTWQVPMEGSVPCFXZ
THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "SHADOW" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
adfgvx-v2-0365
XAVAXAGAXGXDXAGFFFXAVDVGADDAFFADAFADGFDADADFDFXFAVDDDXDAAFDXGFAVDXFADDDFAXAFADADDVGXFXAGDDAVDXFVFXAGDXDGDFAGDDDDDGDXFAGXGAAVDXGXAGDDAFAAAADDDFDXFADDVDDXADFXAVGAFXAXFXAXFVFAFDAGAADAGXFVAXDDAVAADDVFAAGDFDXGDDDDGVDDXDAGXAAGAFFGDGXGAGVDFDAFXDADFXDXDXDDAAAADAADDAAAGDDFADDAGVFADFDFAAADGFDXDXAADDFXVADXDADXDADFAVFADDAADAAXDVAA...
XAVAXAGAXGXDXAGFFFXAVDVGADDAFFADAFADGFDADADFDFXFAVDDDXDAAFDXGFAVDXFADDDFAXAFADADDVGXFXAGDDAVDXFVFXAGDXDGDFAGDDDDDGDXFAGXGAAVDXGXAGDDAFAAAADDDFDXFADDVDDXADFXAVGAFXAXFXAXFVFAFDAGAADAGXFVAXDDAVAADDVFAAGDFDXGDDDDGVDDXDAGXAAGAFFGDGXGAGVDFDAFXDADFXDXDXDDAAAADAADDAAAGDDFADDAGVFADFDFAAADGFDXDXAADDFXVADXDADXDADFAVFADDAADAAXDVAA...
GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
338
338
cipher_museum
2.0
public
null
null
cardano-autokey-v2-0491
BKRGEPQQRZMYATPNTECGTTECGFVNMALVVMAFBDTECGXALAWRZASCVNULWJZFKAHGALRRBQZGLPXAHTLOAITHXWFAFALRBFKADETWMSZVTZHCILVERJLALGNLSZVTWVWGIHQLVTGRDEGILSSVXAYVRNRVELCVEDBGVGALJNMPO
BKRGEPQQRZMYATPNTECGTTECGFVNMALVVMAFBDTECGXALAWRZASCVNULWJZFKAHGALRRBQZGLPXAHTLOAITHXWFAFALRBFKADETWMSZVTZHCILVERJLALGNLSZVTWVWGIHQLVTGRDEGILSSVXAYVRNRVELCVEDBGVGALJNMPO
GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "VENICE" }
advanced
en
169
169
cipher_museum
2.0
public
null
null
nomenclator-v3-0271
15 14 04 04 01 25 60 01 12 12 09 05 04 06 15 18 03 05 19 12 01 14 04 05 04 15 14 06 09 22 05 14 15 18 13 01 14 04 25 02 05 01 03 08 05 19 64 60 07 18 05 01 20 05 19 20 19 05 01 02 15 18 14 05 09 14 22 01 19 09 15 14
15 14 04 04 01 25 60 01 12 12 09 05 04 06 15 18 03 05 19 12 01 14 04 05 04 15 14 06 09 22 05 14 15 18 13 01 14 04 25 02 05 01 03 08 05 19 64 60 07 18 05 01 20 05 19 20 19 05 01 02 15 18 14 05 09 14 22 01 19 09 15 14
ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
144
215
cipher_museum
2.0
public
null
null
cda-0014086
12.2.10 20.3.5 10.2.7 9.3.9 12.1.8 15.6.9 10.5.2 3.5.3 1.3.8 1.5.2 11.2.10 5.5.10 14.6.8 6.2.10 16.6.3 12.6.7 5.1.7 20.1.10 19.3.3 11.4.10 20.1.9 8.1.2 2.5.6 2.6.3 7.3.7 18.3.5 18.2.7 15.2.8 10.6.10 4.1.7 12.6.8 12.5.10 18.2.6 18.1.2 18.2.5 3.4.6 11.4.3 6.4.4 4.6.9 13.1.1 20.6.1 16.6.7 19.1.5 12.1.10 4.5.5 1.2.5 4.3.6 ...
12.2.10 20.3.5 10.2.7 9.3.9 12.1.8 15.6.9 10.5.2 3.5.3 1.3.8 1.5.2 11.2.10 5.5.10 14.6.8 6.2.10 16.6.3 12.6.7 5.1.7 20.1.10 19.3.3 11.4.10 20.1.9 8.1.2 2.5.6 2.6.3 7.3.7 18.3.5 18.2.7 15.2.8 10.6.10 4.1.7 12.6.8 12.5.10 18.2.6 18.1.2 18.2.5 3.4.6 11.4.3 6.4.4 4.6.9 13.1.1 20.6.1 16.6.7 19.1.5 12.1.10 4.5.5 1.2.5 4.3.6 ...
ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER HONESTLY
arnold_andre
arnold_andre
null
{}
hard
en
167
167
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
adfgx-v3-0285
AFDGXAFDDGAAAXXGDAFFDDDGDFDXGAAAAGDGADFDXAFAFGXDDADFGGXAXDFADGFGGGDFAAFADFGAFAAFAFFDFFADAAADDAXGDDAAFXDAXFDFXAXDAGDAAGFDDFAADAAGGAFGAGAGFFFGADXAADAXGAXDXAGFDDGAGAGFDFFDGDAFDDDDADGFGFDDGAFGDFDDDXFFFGDFDAFFFFFDXFDAFAFFFDFDFAADDGFFDFGGAADGDFDAGDDGDGDFDDDDGGFFDAGAAAFXFGFDFDDFADDFDAFDAFFAFAGDDDGGFXDFFAAXAFFAGFFAGFDAGDXFFAFA...
AFDGXAFDDGAAAXXGDAFFDDDGDFDXGAAAAGDGADFDXAFAFGXDDADFGGXAXDFADGFGGGDFAAFADFGAFAAFAFFDFFADAAADDAXGDDAAFXDAXFDFXAXDAGDAAGFDDFAADAAGGAFGAGAGFFFGADXAADAXGAXDXAGFDDGAGAGFDFFDGDAFDDDDADGFGFDDGAFGDFDDDXFFFGDFDAFFFFFDXFDAFAFFFDFDFAADDGFFDFGGAADGDFDAGDDGDGDFDDDDGGFFDAGAAAFXFGFDFDDFADDFDAFDAFFAFAGDDDGGFXDFFAAXAFFAGFFAGFDAGDXFFAFA...
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
adfgx
adfgx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
328
328
cipher_museum
2.0
public
null
null
nomenclator-v2-0174
01 12 12 60 23 15 18 12 04 19 01 19 20 01 07 05 61 05 01 03 08 13 01 14 64 08 09 19 20 09 13 05 16 12 01 25 19 13 01 14 25 16 01 18 20 19 15 14 12 09 06 05 19 07 18 05 01 20 19 20 01 07 05
01 12 12 60 23 15 18 12 04 19 01 19 20 01 07 05 61 05 01 03 08 13 01 14 64 08 09 19 20 09 13 05 16 12 01 25 19 13 01 14 25 16 01 18 20 19 15 14 12 09 06 05 19 07 18 05 01 20 19 20 01 07 05
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "PALACE" }
expert
en
126
188
cipher_museum
2.0
public
null
null
fialka-174
AXSWBCWWTZSJOBQPTLFDOPJGIUUEKVDHKOXKIZGBOHCNJJFCUVPMDJOUOQARAF
AXSWBCWWTZSJOBQPTLFDOPJGIUUEKVDHKOXKIZGBOHCNJJFCUVPMDJOUOQARAF
THE ENEMY KNOWS THE SYSTEM DESIGN YOUR CIPHER ACCORDINGLY WITH GREAT CARE
fialka
fialka
machine
{ "type": "seed", "value": "SECRET" }
expert
en
62
62
cipher_museum
0.2
public
null
null
copiale-v2-0255
I4 L0 M1 E1 A6 Q1 E0 J4 A4 S9 S6
I4 L0 M1 E1 A6 Q1 E0 J4 A4 S9 S6
HOLD THE LINE
copiale
copiale
substitution
{ "type": "keyword", "value": "MYSTERY" }
advanced
en
22
32
cipher_museum
2.0
public
null
null
monoalphabetic-391
VB SHEY QSBNB QMRQSN QH OB NBEI BTAYBGQ QSPQ PEE FBG PMB LMBPQBY BKRPE
VB SHEY QSBNB QMRQSN QH OB NBEI BTAYBGQ QSPQ PEE FBG PMB LMBPQBY BKRPE
WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "POLYBIUS" }
beginner
en
57
70
cipher_museum
0.2
public
null
null
bifid-247
SIEERNDECDLQG
SIEERNDECDLQG
THE KING IS DEAD
bifid
bifid
fractionation
{ "type": "keyword", "value": "ENIGMA" }
advanced
en
13
13
cipher_museum
0.2
public
null
null
kl7-v2-0146
GDYDUKPAAFDWYIFEAMMMUA
GDYDUKPAAFDWYIFEAMMMUA
EXTRACTION POINT CHANGED
kl7
kl7
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
22
22
cipher_museum
2.0
public
null
null
caesar-v2-0688
WNENA RW CQN ORNUM XO QDVJW LXWOURLC FJB BX VDLQ XFNM KH BX VJWH CX BX ONF KAJEN BXDUB
WNENA RW CQN ORNUM XO QDVJW LXWOURLC FJB BX VDLQ XFNM KH BX VJWH CX BX ONF KAJEN BXDUB
NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS
caesar
caesar
substitution
{ "type": "shift", "value": 9 }
beginner
en
68
86
cipher_museum
2.0
public
null
null
two-square-v3-0056
UNINBMNITYCKBACZONFAHEFRONQNLUMHHUKTNKNOYAAHHLCALLSTOEPDHGCOLUATIOKLOLWX
UNINBMNITYCKBACZONFAHEFRONQNLUMHHUKTNKNOYAAHHLCALLSTOEPDHGCOLUATIOKLOLWX
TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW
two_square
two_square
polygraphic
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
72
72
cipher_museum
2.0
public
null
null
sigaba-v2-0300
XOLUGCTXFQJTCYFJOQQAJMFCQKJPZUJRUJBXLNNQOWFEHIOVSZVRXVRIPEAGZJXKZWEM
XOLUGCTXFQJTCYFJOQQAJMFCQKJPZUJRUJBXLNNQOWFEHIOVSZVRXVRIPEAGZJXKZWEM
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
sigaba
sigaba
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
68
68
cipher_museum
2.0
public
null
null
cda-0017562
SOUT HUNI TEBE LOWS TAGE THRE EISS UETA KESU PPER TAKE SINC UROF TENN EEDS COVE RINT ELPA RTSH EADS EARL YROU TESC OUTM OVED AMON GPOI NTEX ACTA FTER COVE R
SOUT HUNI TEBE LOWS TAGE THRE EISS UETA KESU PPER TAKE SINC UROF TENN EEDS COVE RINT ELPA RTSH EADS EARL YROU TESC OUTM OVED AMON GPOI NTEX ACTA FTER COVE R
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE MESSAGE WAS HIDDEN BUT NOT SECURE
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.
diana-v3-0358
SBXZRRFXRDNDTHT
SBXZRRFXRDNDTHT
THE FACTORY ROARS
diana
diana
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
15
15
cipher_museum
2.0
public
null
null
copiale-v2-0070
G9 X7 C3 O4 L1 A9 M9 C9 K7 Y0 C8 K8 D2 D0 C9 C8 R8 U6 Q7 U4 H7 L9 S6 N6 L9 C4 Q3 K7 Q8 N3 B5 H2 N7 R7 T9 N6 O3 C4 P5 P3 T9 U4 M6 C5 J9 Q1 O1 A2 A6 A0 X7 N3 T9 A4 C4 C3 C8 O5 Q7 I3 B0 M9 B8 Q7 C4 R8 U6 T1 N7 N7 C2
G9 X7 C3 O4 L1 A9 M9 C9 K7 Y0 C8 K8 D2 D0 C9 C8 R8 U6 Q7 U4 H7 L9 S6 N6 L9 C4 Q3 K7 Q8 N3 B5 H2 N7 R7 T9 N6 O3 C4 P5 P3 T9 U4 M6 C5 J9 Q1 O1 A2 A6 A0 X7 N3 T9 A4 C4 C3 C8 O5 Q7 I3 B0 M9 B8 Q7 C4 R8 U6 T1 N7 N7 C2
QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR
copiale
copiale
substitution
{ "type": "keyword", "value": "MASONIC" }
advanced
en
142
212
cipher_museum
2.0
public
null
null
typex-016
KYXYJJMRAEAXJPJYOC
KYXYJJMRAEAXJPJYOC
SEND REINFORCEMENTS
typex
typex
machine
{ "type": "keyword", "value": "TYPEX" }
expert
en
18
18
cipher_museum
0.2
public
null
null
bifid-v2-0058
IVSNBFPFDSLLKLCVTMQFVDYMLYNKEGECNCUEBTZIXHOXGUSITDMXYZHBSXGTXXWABXZM
IVSNBFPFDSLLKLCVTMQFVDYMLYNKEGECNCUEBTZIXHOXGUSITDMXYZHBSXGTXXWABXZM
NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS
bifid
bifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
68
68
cipher_museum
2.0
public
null
null
joseon-yeokhak-v2-0058
VMDMZQVBPMNQMTLWNPCUIVKWVNTQKBEIAAWUCKPWEMLJGAWUIVGBWAWNMEJZIDMAWCTA
VMDMZQVBPMNQMTLWNPCUIVKWVNTQKBEIAAWUCKPWEMLJGAWUIVGBWAWNMEJZIDMAWCTA
NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "SEOUL" }
beginner
en
68
68
cipher_museum
2.0
public
null
null
vic-v2-0197
85789488926901850494864881844090608088468985068849083490838844861556888985816558921409018112108791188956080868885828848989
85789488926901850494864881844090608088468985068849083490838844861556888985816558921409018112108791188956080868885828848989
OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS
vic
vic
substitution
{ "type": "keyword", "value": "NICKEL" }
advanced
en
122
122
cipher_museum
2.0
public
null
null
cda-0010106
QVTE NCUN AQGE VTEN CUSE RDHR APVR FRKC BFRF VZCY RPVC UREF GURO RFGY RFFB AFFU BJJU RERG URZR GUBQ SNVY F
QVTE NCUN AQGE VTEN CUSE RDHR APVR FRKC BFRF VZCY RPVC UREF GURO RFGY RFFB AFFU BJJU RERG URZR GUBQ SNVY F
DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE BEST LESSONS SHOW WHERE THE METHOD FAILS
rot13
rot13
null
{ "shift": 13 }
hard
en
85
85
synthetic_educational
null
null
[]
joseon-yeokhak-v3-0189
HVSDCKSFGBCHRSZSUOHSRHCHVSIBWHSRGHOHSGPMHVSQCBGHWHIHWCBOFSFSGSFJSRHCHVSGHOHSG
HVSDCKSFGBCHRSZSUOHSRHCHVSIBWHSRGHOHSGPMHVSQCBGHWHIHWCBOFSFSGSFJSRHCHVSGHOHSG
THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "JOSEON" }
beginner
en
77
77
cipher_museum
2.0
public
null
null
great-cipher-v3-0052
174 157 100 167 171 100 171 140 167 166 103 129 179 102 108 142 171 152 100 100 174 143 119 171 106 173 179 141 174 154 171 146 173 160 141 174 136 176 143 128 174 166 139 181 152 142 125 141 100 161 111 166 162 174 154 175 166 139 171 144 154 171 178
174 157 100 167 171 100 171 140 167 166 103 129 179 102 108 142 171 152 100 100 174 143 119 171 106 173 179 141 174 154 171 146 173 160 141 174 136 176 143 128 174 166 139 181 152 142 125 141 100 161 111 166 162 174 154 175 166 139 171 144 154 171 178
DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "VERSAILLES" }
expert
en
189
251
cipher_museum
2.0
public
null
null
two-square-v3-0300
QNFQHRDBBEAKFM
QNFQHRDBBEAKFM
THE SIEGE BEGINS
two_square
two_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
14
14
cipher_museum
2.0
public
null
null
double-transposition-v2-0607
MRUONNPEHANAESDOIRSICONSHCBADAAICRGDDQAMSSARTAWHSETEIRFTLVTUSSMEOITTSNEUDOOORNTH
MRUONNPEHANAESDOIRSICONSHCBADAAICRGDDQAMSSARTAWHSETEIRFTLVTUSSMEOITTSNEUDOOORNTH
THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ
double_transposition
double_transposition
transposition
{ "key1": "WISDOM", "key2": "COURAGE" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
cda-0016567
MHYN UODW IGSW NMQK KRZT BFYR NNMA KLQG WGCM OUYU ZINR IISJ HWBV DNZO DTJN XLVG MMEJ TKEE CBLG GLEF JGCQ GWHT KHOV TUCK HXNV YPJQ NDQP XBFZ KVXM NKPL CSP
MHYN UODW IGSW NMQK KRZT BFYR NNMA KLQG WGCM OUYU ZINR IISJ HWBV DNZO DTJN XLVG MMEJ TKEE CBLG GLEF JGCQ GWHT KHOV TUCK HXNV YPJQ NDQP XBFZ KVXM NKPL CSP
DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG A STRONG CLAIM NEEDS STRONG EVIDENCE
vernam
vernam
null
{}
hard
en
123
123
synthetic_educational
null
null
[ "key_reuse_attack", "information_theoretic_proof" ]
Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP.
chinese-telegraph-v2-0192
8603 7654 7467 7529 7467 7194 8437 8100 7529 8603 7654 7467 7911 8100 8437 7401 7720 8528 8603 7654 7467 7256 7467 7590 7720 8038 8038 7720 8038 7590 8100 7529 8854 7720 8528 7401 8100 7974 7194 8038 7401 7849 8038 8100 8854 7911 7467 7401 7590 7467 8100 7529 8603 7654 7467 7654 8100 7911 9003 8100 8038 7467 7720 8528 ...
8603 7654 7467 7529 7467 7194 8437 8100 7529 8603 7654 7467 7911 8100 8437 7401 7720 8528 8603 7654 7467 7256 7467 7590 7720 8038 8038 7720 8038 7590 8100 7529 8854 7720 8528 7401 8100 7974 7194 8038 7401 7849 8038 8100 8854 7911 7467 7401 7590 7467 8100 7529 8603 7654 7467 7654 8100 7911 9003 8100 8038 7467 7720 8528 ...
THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "27182" }
expert
en
308
384
cipher_museum
2.0
public
null
null
confederate-vigenere-v3-0439
HUGLDRGNACELU
HUGLDRGNACELU
FULL SAIL AHEAD
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "CAVALRY" }
intermediate
en
13
13
cipher_museum
2.0
public
null
null
cda-0015850
FTVVDMQGDICSJNKETFYNWYWBLESSNOCXYUPZLYYNZZLRWOVLZEPOUJYGMYDHVRWPXDW
FTVVDMQGDICSJNKETFYNWYWBLESSNOCXYUPZLYYNZZLRWOVLZEPOUJYGMYDHVRWPXDW
DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX
vernam
vernam
null
{}
medium
en
67
67
synthetic_educational
null
null
[ "key_reuse_attack", "information_theoretic_proof" ]
Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP.
zimmermann-v2-0055
99999 90000 90017 90012 90024 99998 00001 99999 90013 90014 90017 90019 90007 90004 90017 90013 99998 99999 90021 90008 90017 90006 90008 90013 90008 90000 99998 99999 90018 90020 90017 90017 90004 90013 90003 90004 90017 90018 99998 00016 99999 90000 90015 90015 90014 90012 90000 90019 90019 90014 90023 99998 99999 90...
99999 90000 90017 90012 90024 99998 00001 99999 90013 90014 90017 90019 90007 90004 90017 90013 99998 99999 90021 90008 90017 90006 90008 90013 90008 90000 99998 99999 90018 90020 90017 90017 90004 90013 90003 90004 90017 90018 99998 00016 99999 90000 90015 90015 90014 90012 90000 90019 90019 90014 90023 99998 99999 90...
ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER
zimmermann
zimmermann
codebook
{ "type": "none", "value": null }
expert
en
380
455
cipher_museum
2.0
public
null
null
trifid-v2-0552
ICYLUAWDQJBJEKXTCNXABTYGYDCYWWBUDHPFFQRFPCAWNXQ+HO+BALPBLPLOJSRFETWO
ICYLUAWDQJBJEKXTCNXABTYGYDCYWWBUDHPFFQRFPCAWNXQ+HO+BALPBLPLOJSRFETWO
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
trifid
trifid
fractionation
{ "type": "keyword", "value": "JUSTICE" }
advanced
en
68
68
cipher_museum
2.0
public
null
null
cda-0010307
KCASLVRBSILGCOKOKGOUNIFYIMPSAYZRWXVQENDEGOYEVLZEEXJCJTAMTUCHLQLDNATXYLEXWLFEEHOIGXLUVTZFFCFELMASGHJIGADBJMTLGPFPUPFUWYEQLGZQOV
KCASLVRBSILGCOKOKGOUNIFYIMPSAYZRWXVQENDEGOYEVLZEEXJCJTAMTUCHLQLDNATXYLEXWLFEEHOIGXLUVTZFFCFELMASGHJIGADBJMTLGPFPUPFUWYEQLGZQOV
DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
autokey
autokey
null
{ "primer": "HONEST" }
hard
en
126
126
synthetic_educational
null
null
[]
cda-0002614
FHNFGVGHGWBA QVCVSEF ZOC SOQU YSGGSE GB O QWSSSERAG YSGGSE UBARFGYL
FHNFGVGHGWBA QVCVSEF ZOC SOQU YSGGSE GB O QWSSSERAG YSGGSE UBARFGYL
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER HONESTLY
porta
porta
null
{ "key": "SECURE" }
medium
en
58
58
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
rail-fence-v3-0364
DHSTEOTAEHACGNOTGOELAOTGAUVORTNODLASEGIOLDREGOEDOBDOAGLNTUNFRETIHRADYNGNA
DHSTEOTAEHACGNOTGOELAOTGAUVORTNODLASEGIOLDREGOEDOBDOAGLNTUNFRETIHRADYNGNA
DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 10 }
intermediate
en
73
73
cipher_museum
2.0
public
null
null
joseon-yeokhak-v2-0402
LZWOSDDKZSNWWSJK
LZWOSDDKZSNWWSJK
THE WALLS HAVE EARS
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "DYNASTY" }
beginner
en
16
16
cipher_museum
2.0
public
null
null
slidex-v3-0120
HIDLASJKDMOCJAYOUP
HIDLASJKDMOCJAYOUP
ARCHERS TO THE WALLS
slidex
slidex
transposition
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
18
18
cipher_museum
2.0
public
null
null
copiale-v3-0255
W9 V0 U1 C7 E6 O7 Y0 P9 V0 R0 N1 W5 J2 U0 V4 G3 H3 F5 J4 A2 R9 D3 J8 A5 G4 N2 D4 M1 R7 G2 V2 U2 A7 O7 W6 F9 T4 D6 V6 M7 W5 J6 M1 Q5 L3 D6 G4 A4 J9 Z2 I2 B8 T2 E3 T2 C7 A4 I2 K6 L0 H0 P6 N6 N2 G3 V0 J0 K6 R7 L3 P9 B8 V0 I0 V4 D0 I5 D4 F5 M8 A6 O2 N6 D6 V8 U1 N6 E0
W9 V0 U1 C7 E6 O7 Y0 P9 V0 R0 N1 W5 J2 U0 V4 G3 H3 F5 J4 A2 R9 D3 J8 A5 G4 N2 D4 M1 R7 G2 V2 U2 A7 O7 W6 F9 T4 D6 V6 M7 W5 J6 M1 Q5 L3 D6 G4 A4 J9 Z2 I2 B8 T2 E3 T2 C7 A4 I2 K6 L0 H0 P6 N6 N2 G3 V0 J0 K6 R7 L3 P9 B8 V0 I0 V4 D0 I5 D4 F5 M8 A6 O2 N6 D6 V8 U1 N6 E0
IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE
copiale
copiale
substitution
{ "type": "keyword", "value": "MYSTERY" }
advanced
en
176
263
cipher_museum
2.0
public
null
null