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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
adfgx-v2-0330
DADFFAFGDFXDDAAADFAAGXDAGDDAAXAFADDAAADFGDGAGAAAGFFDDGGXFGGAFFADFAGFAFGDXFFFAAFGXAGDFAFDFXXXDXFXFDXADDAXAFAFGDFDDAFFFGADDDAFDADGFFAFDDADDGDFDGDGAGDGAGDGADDDDADFGAAGDFDF
DADFFAFGDFXDDAAADFAAGXDAGDDAAXAFADDAAADFGDGAGAAAGFFDDGGXFGGAFFADFAGFAFGDXFFFAAFGXAGDFAFDFXXXDXFXFDXADDAXAFAFGDFDDAFFFGADDDAFDADGFFAFDDADDGDFDGDGAGDGAGDGADDDDADFGAAGDFDF
VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT
adfgx
adfgx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
168
168
cipher_museum
2.0
public
null
null
cda-0013729
PATTX RNWOR DSHEL PBREA KMONO ALPHA BETIX SUBST ITUTZ ONTHE TRITH EMIUS CIPHE RADVX NCEST HEALP HABET BYONE POSIZ IONEA CHLEX TERTH EENIZ MAMAZ HINEU SEDRO TORST OCREA TEAPO LYALP HABET ICCIZ HERPZ RHAPS
PATTX RNWOR DSHEL PBREA KMONO ALPHA BETIX SUBST ITUTZ ONTHE TRITH EMIUS CIPHE RADVX NCEST HEALP HABET BYONE POSIZ IONEA CHLEX TERTH EENIZ MAMAZ HINEU SEDRO TORST OCREA TEAPO LYALP HABET ICCIZ HERPZ RHAPS
PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER PERHAPS
commercial_code
commercial_code
null
{}
hard
en
170
170
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
two-square-v2-0447
VEBMNADRVEOIFNQNATCTHCROUSSOXFNNRIENTSKEAMENNNARPBDTHEHIGHFQUKNYFKSONDHEUSRQVERNHCNT
VEBMNADRVEOIFNQNATCTHCROUSSOXFNNRIENTSKEAMENNNARPBDTHEHIGHFQUKNYFKSONDHEUSRQVERNHCNT
VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT
two_square
two_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
84
84
cipher_museum
2.0
public
null
null
wheatstone-v3-0005
OJSIGQHRQNSFKRQO
OJSIGQHRQNSFKRQO
SOUND THE TRUMPETS
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "TELEGRAPHY" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
one-time-pad-v3-0145
QPXYXZUBHAEGIROKFKJZJGMJPMDZMMXZIUPTRKGJYAAYJDAHJVEVQLEEXQYKOGRAHWYPWWTMRVZT
QPXYXZUBHAEGIROKFKJZJGMJPMDZMMXZIUPTRKGJYAAYJDAHJVEVQLEEXQYKOGRAHWYPWWTMRVZT
AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "QWERTY (repeating)" }
expert
en
76
76
cipher_museum
2.0
public
null
null
trithemius-v3-0049
IU YDW F HYQPRE OBZS TRQ BH VLOGK AOF WLJ ISWLUD IRFT IKJBEDJD RGISVHIS GJZXCD FUS RYKQ
IU YDW F HYQPRE OBZS TRQ BH VLOGK AOF WLJ ISWLUD IRFT IKJBEDJD RGISVHIS GJZXCD FUS RYKQ
IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY
trithemius
trithemius
polyalphabetic
{ "type": "none", "value": null }
beginner
en
71
87
cipher_museum
2.0
public
null
null
straddling-checkerboard-v3-0268
925102422523425222882425420082412122864542522731282822765232122142505212242522387525726210222120017322917312882203
925102422523425222882425420082412122864542522731282822765232122142505212242522387525726210222120017322917312882203
CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "RASTONICEL" }
advanced
en
114
114
cipher_museum
2.0
public
null
null
cda-0012905
00641 01658 00355 6680 1963 04721 5712 06317 02896 6022 6374 2537 01583 5745 01660 00951 2892 5070 05736 4776 00950 0327 03844 4775 01897 06937 02915 02287 1577 4474 01576 05731 1590 00361 4406 01328 1336 01577 01036 5711 7884 05037 6322 6025 02873 06285 05990 1639 3859 1888 01343 04727 04466 4719 6280 01041 4783 4397 ...
00641 01658 00355 6680 1963 04721 5712 06317 02896 6022 6374 2537 01583 5745 01660 00951 2892 5070 05736 4776 00950 0327 03844 4775 01897 06937 02915 02287 1577 4474 01576 05731 1590 00361 4406 01328 1336 01577 01036 5711 7884 05037 6322 6025 02873 06285 05990 1639 3859 1888 01343 04727 04466 4719 6280 01041 4783 4397 ...
BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION
zimmermann
zimmermann
null
{}
hard
en
140
140
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
noisy-vigenere-telegraph-002
KIPU AXRHFVVWQGEX OIC IZGMPXXHSHXRRVW
KIPU AXRHFVVWQGEX OIC IZGMPXXHSHXRRVW
SEND REINFORCEMENTS WE ARE GOING TO ADVANCE
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
en
34
37
cipher_museum
0.2
public
null
null
cda-0008734
KADCN OXALN FXATB XWUHF QNWCQ NTNHB YJLNR BBVJU U
KADCN OXALN FXATB XWUHF QNWCQ NTNHB YJLNR BBVJU U
BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL
gronsfeld
gronsfeld
null
{ "key": "99999" }
medium
en
41
41
synthetic_educational
null
null
[]
affine-v2-0845
OIN SLSPYBOFY MKFO OF LHHLHHPYLON TVNNY NKPELSNOI JLH VYZFCNANG SX UALYZPH JLKHPYBILR PY OPRN
OIN SLSPYBOFY MKFO OF LHHLHHPYLON TVNNY NKPELSNOI JLH VYZFCNANG SX UALYZPH JLKHPYBILR PY OPRN
THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME
affine
affine
substitution
{ "a": 7, "b": 11 }
beginner
en
80
93
cipher_museum
2.0
public
null
null
fialka-v3-0206
GLIPUINKRMNRODMTHGGXNMVKWYIZPOYYUKLIMEUBRKAGXERKVVMSJVKWACNFYCKVBCXSIHVKVAXHYMOIXNKUGEYQSPYNDYJBYKQADHZDSPWGTZKGFKAVPLFMXPXDENZGCQMEBPRGJHMJRUUISZWXAOYGMKXGRSKWHXUQX
GLIPUINKRMNRODMTHGGXNMVKWYIZPOYYUKLIMEUBRKAGXERKVVMSJVKWACNFYCKVBCXSIHVKVAXHYMOIXNKUGEYQSPYNDYJBYKQADHZDSPWGTZKGFKAVPLFMXPXDENZGCQMEBPRGJHMJRUUISZWXAOYGMKXGRSKWHXUQX
THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER
fialka
fialka
machine
{ "type": "seed", "value": "KREMLIN" }
expert
en
165
165
cipher_museum
2.0
public
null
null
chinese-telegraph-048
0538 0347 1821 0918 1503 0667 0856 0918 1672 0074 0918 1421 0472 1821 0918 1503 1255 1346 0285 0729 0347 0012 0856 0219 1821 0918 1503 1255 0285 0856 0285 0792 1821 1821 0918 1503 0856 0285 0285 0219 0856 0918 1421 0347 0285 0012 1255 1421 0472 0285 1255 0285 1346 1503 0729 1421
0538 0347 1821 0918 1503 0667 0856 0918 1672 0074 0918 1421 0472 1821 0918 1503 1255 1346 0285 0729 0347 0012 0856 0219 1821 0918 1503 1255 0285 0856 0285 0792 1821 1821 0918 1503 0856 0285 0285 0219 0856 0918 1421 0347 0285 0012 1255 1421 0472 0285 1255 0285 1346 1503 0729 1421
IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
224
279
cipher_museum
0.2
public
null
null
fractionated-morse-v3-0024
OPUESVVDDLESXPDBP
OPUESVVDDLESXPDBP
THE WIND IS WITH US
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
17
17
cipher_museum
2.0
public
null
null
cda-0013592
turns watch outer scout quick upper after radio early clear intel place hence eight roads eight needs cause roads years phase track south depth inner
turns watch outer scout quick upper after radio early clear intel place hence eight roads eight needs cause roads years phase track south depth inner
TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE VIGENERE CIPHER USES A REPEATING KEYWORD HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS
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.
kryptos-v3-0049
UMTLETHIVWNRINXQITBPKLBXUOHPIRQZJRDSSQTUSBFMBZOFZREXQXDZMPFSANGJCELWVHA
UMTLETHIVWNRINXQITBPKLBXUOHPIRQZJRDSSQTUSBFMBZOFZREXQXDZMPFSANGJCELWVHA
IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "SHADOW" }
advanced
en
71
71
cipher_museum
2.0
public
null
null
enigma-v2-0391
GIYZUBBQFOOJD
GIYZUBBQFOOJD
STAY THE COURSE
enigma
enigma
machine
{ "type": "rotor_start", "value": "JKL" }
expert
en
13
13
cipher_museum
2.0
public
null
null
vernam-v2-0086
TIGNEXOZSRDPEGTXDUKKYKAXRDDTGTYJTJMBDZPRHTHDAGYODBIDYMGQKYNVNJFTSRBTHVUBJCAOIDY
TIGNEXOZSRDPEGTXDUKKYKAXRDDTGTYJTJMBDZPRHTHDAGYODBIDYMGQKYNVNJFTSRBTHVUBJCAOIDY
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
vernam
vernam
stream
{ "type": "pad", "value": "ABCDEFGH (repeating)" }
expert
en
79
79
cipher_museum
2.0
public
null
null
adfgx-v3-0098
FFDDGGGFGAAADDDDADADAGGFDDDAXAAGXXGAAADXXAXAGF
FFDDGGGFGAAADDDDADADAGGFDDDAXAAGXXGAAADXXAXAGF
ROME WAS NOT BUILT IN ONE DAY
adfgx
adfgx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
46
46
cipher_museum
2.0
public
null
null
book-cipher-016
11.1 5.1 53.1 1.1 24.1 53.1 15.1 58.1 24.1 53.1 4.1 6.1 10.1 5.1 1.1
11.1 5.1 53.1 1.1 24.1 53.1 15.1 58.1 24.1 53.1 4.1 6.1 10.1 5.1 1.1
FORWARD MARCH NOW
book_cipher
book_cipher
codebook
{ "type": "none", "value": null }
expert
en
54
68
cipher_museum
0.2
public
null
null
adfgx-v2-0264
XFDDFFGFDAGXAADXAAAFAAFDXFDFAFAGDGGGDF
XFDDFFGFDAGXAADXAAAFAAFDXFDFAFAGDGGGDF
WISDOM GUARDS THE GATE
adfgx
adfgx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
38
38
cipher_museum
2.0
public
null
null
slidex-v2-0315
SJZUGXGKQOSKYXNOGMXPYXLFMMNMTPTRYOSOIHGKGQLFKNWIDQPWKQFRDQWYEPSLSHEWJMXCEP
SJZUGXGKQOSKYXNOGMXPYXLFMMNMTPTRYOSOIHGKGQLFKNWIDQPWKQFRDQWYEPSLSHEWJMXCEP
FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH
slidex
slidex
transposition
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
74
74
cipher_museum
2.0
public
null
null
nomenclator-v2-0100
12 01 22 09 04 01 05 19 19 21 05 14 15 25 12 15 19 19 21 05 14 15 19 19 21 05 14 15 19 19 15 14 16 01 18 01 20 15 04 15 19 12 15 19 17 21 05 22 09 22 05 14 02 01 10 15 05 12 03 09 05 12 15 05 20 05 18 14 15
12 01 22 09 04 01 05 19 19 21 05 14 15 25 12 15 19 19 21 05 14 15 19 19 21 05 14 15 19 19 15 14 16 01 18 01 20 15 04 15 19 12 15 19 17 21 05 22 09 22 05 14 02 01 10 15 05 12 03 09 05 12 15 05 20 05 18 14 15
LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO
nomenclator
nomenclator
nomenclator
{ "type": "none", "value": null }
expert
en
138
206
cipher_museum
2.0
public
null
null
zimmermann-v3-0038
99999 90012 90004 90000 90018 90020 90017 90004 99998 99999 90019 90022 90008 90002 90004 99998 99999 90002 90020 90019 99998 99999 90014 90013 90002 90004 99998
99999 90012 90004 90000 90018 90020 90017 90004 99998 99999 90019 90022 90008 90002 90004 99998 99999 90002 90020 90019 99998 99999 90014 90013 90002 90004 99998
MEASURE TWICE CUT ONCE
zimmermann
zimmermann
codebook
{ "type": "none", "value": null }
expert
en
135
161
cipher_museum
2.0
public
null
null
cda-0014732
⟨w20⟩ ⟨a19⟩ ⟨a19⟩ ⟨w10⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a17⟩ ⟨w20⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a23⟩ ⟨w28⟩ ⟨a07⟩ ⟨a17⟩ ⟨w08⟩ ⟨w04⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨w08⟩ ⟨a01⟩ ⟨a25⟩ ⟨w10⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨w...
⟨w20⟩ ⟨a19⟩ ⟨a19⟩ ⟨w10⟩ ⟨a19⟩ ⟨w14⟩ ⟨w10⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a17⟩ ⟨w20⟩ ⟨a25⟩ ⟨w20⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a23⟩ ⟨w28⟩ ⟨a07⟩ ⟨a17⟩ ⟨w08⟩ ⟨w04⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨w08⟩ ⟨a01⟩ ⟨a25⟩ ⟨w10⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w40⟩ ⟨w22⟩ ⟨a25⟩ ⟨w...
ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS
babington
babington
null
{}
medium
en
56
56
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
trithemius-v3-0034
OMF LVTTZQMOD TBZSI
OMF LVTTZQMOD TBZSI
OLD IRONSIDES HOLDS
trithemius
trithemius
polyalphabetic
{ "type": "none", "value": null }
beginner
en
17
19
cipher_museum
2.0
public
null
null
one-time-pad-v3-0139
IYMVGAYEWIHGXYXLUSRHLPDTYMCAEEWPYTWVIGQBOAQYFSPEDFAOUEWSEGHLGPIVDQHLADPHKUOFVZ
IYMVGAYEWIHGXYXLUSRHLPDTYMCAEEWPYTWVIGQBOAQYFSPEDFAOUEWSEGHLGPIVDQHLADPHKUOFVZ
SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "QWERTY (repeating)" }
expert
en
78
78
cipher_museum
2.0
public
null
null
solitaire-v3-0177
FQNSUKLNITTUFJQODDWKKWAXWWVDYQWXNABMFJUVKOFEMAKVAEALSSFTVDNTECRYMRFURVPBHZEXTE
FQNSUKLNITTUFJQODDWKKWAXWWVDYQWXNABMFJUVKOFEMAKVAEALSSFTVDNTECRYMRFURVPBHZEXTE
BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS
solitaire
solitaire
stream
{ "type": "passphrase", "value": "SCHNEIER" }
expert
en
78
78
cipher_museum
2.0
public
null
null
cda-0002463
YMZYVK EULFIEV ZH GEWEGVOUJ MKE YAQKYZEM
YMZYVK EULFIEV ZH GEWEGVOUJ MKE YAQKYZEM
ATBASH ENCODES BY REVERSING THE ALPHABET
monoalphabetic
monoalphabetic
null
{ "alphabet": "YZLIEDJKOXTAPUFQRGVMBWCNHS" }
medium
en
35
35
synthetic_educational
null
null
[ "frequency_analysis", "pattern_words", "hill_climbing_lm" ]
Monoalphabetic substitution with an arbitrary 26-letter permutation.
porta-v2-0753
ORUQLANKGWKFZVMLGUEREPHEKLBKQWKFZBMHPMBTYEZBCKGOANGRMRWGRPTZMRYABORWBMIFCVQSNMGSWXUGHYEHUJAECVBONSYSBNPYSVYYSJKPYFBORHOOYPMVDYVLGZYEPQYYBBRMSBHXNGTMUWUENBIGRZBMYFM
ORUQLANKGWKFZVMLGUEREPHEKLBKQWKFZBMHPMBTYEZBCKGOANGRMRWGRPTZMRYABORWBMIFCVQSNMGSWXUGHYEHUJAECVBONSYSBNPYSVYYSJKPYFBORHOOYPMVDYVLGZYEPQYYBBRMSBHXNGTMUWUENBIGRZBMYFM
HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST
porta
porta
polyalphabetic
{ "type": "keyword", "value": "PAPAL" }
intermediate
en
163
163
cipher_museum
2.0
public
null
null
trifid-150
EMZOESDNGQN
EMZOESDNGQN
RALLY AT DAWN
trifid
trifid
fractionation
{ "type": "keyword", "value": "SECRET" }
advanced
en
11
11
cipher_museum
0.2
public
null
null
four-square-v2-0070
GSVATRHTEATRIGTGOATFRYLPLIACCODVFSCNIANTLIACCOHPTSAUGIINFSFMLUSX
GSVATRHTEATRIGTGOATFRYLPLIACCODVFSCNIANTLIACCOHPTSAUGIINFSFMLUSX
IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS
four_square
four_square
polygraphic
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
64
64
cipher_museum
2.0
public
null
null
cda-0013771
⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨w28⟩ ⟨a19⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w34⟩ ⟨w10⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w26⟩ ⟨w10⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a...
⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨w28⟩ ⟨a19⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨a25⟩ ⟨w34⟩ ⟨w10⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w34⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨a13⟩ ⟨w10⟩ ⟨a01⟩ ⟨w40⟩ ⟨a11⟩ ⟨w32⟩ ⟨w28⟩ ⟨w22⟩ ⟨w22⟩ ⟨w16⟩ ⟨w28⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w26⟩ ⟨w10⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a...
THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
babington
babington
null
{}
hard
en
129
129
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
rail-fence-v3-0157
IUOTHIHGNJHSHCAFRAETDNAEIRYEVBOIPSBRDVETFAAEOETANEISUNNMOEOYGTLOHMOHTHJOK
IUOTHIHGNJHSHCAFRAETDNAEIRYEVBOIPSBRDVETFAAEOETANEISUNNMOEOYGTLOHMOHTHJOK
I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
73
73
cipher_museum
2.0
public
null
null
m209-v3-0285
MLDBZDMBZMTMKYWDMKOXAPQCIBLVRYEQHZMJONAMDIXPPKHUKXPLKDUAMLTQWLXZNQNPNUHVOPKPIQJMPOYMAPCZ
MLDBZDMBZMTMKYWDMKOXAPQCIBLVRYEQHZMJONAMDIXPPKHUKXPLKDUAMLTQWLXZNQNPNUHVOPKPIQJMPOYMAPCZ
TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE
m209
m209
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
88
88
cipher_museum
2.0
public
null
null
cda-0008975
VPTT IJLH KQAS KHOH ZEFI CWQS GTYV HFXU SNOD RCFE LMAS GHJI GADB JMTL GPFP UPFU WYEQ LGZQ OVYG KUSE GUER WZTG PDAE GVSQ YWOZ RRTG Z
VPTT IJLH KQAS KHOH ZEFI CWQS GTYV HFXU SNOD RCFE LMAS GHJI GADB JMTL GPFP UPFU WYEQ LGZQ OVYG KUSE GUER WZTG PDAE GVSQ YWOZ RRTG Z
THE MESSAGE WAS HIDDEN BUT NOT SECURE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER A STRONG CLAIM NEEDS STRONG EVIDENCE
autokey
autokey
null
{ "primer": "CIPHER" }
hard
en
105
105
synthetic_educational
null
null
[]
homophonic-007
97 45 28 57 50 66 41 53 91 22 34 10 22
97 45 28 57 50 66 41 53 91 22 34 10 22
THE KING IS DEAD
homophonic
homophonic
substitution
{ "type": "keyword", "value": "CIPHER" }
intermediate
en
26
38
cipher_museum
0.2
public
null
null
geez-monastic-v3-0019
LAJPVQAJOYULUNQQJJIU
LAJPVQAJOYULUNQQJJIU
THE ALCHEMIST SUCCEEDS
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "ETHIOPIA" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
chaocipher-v3-0182
PXKPHJKMFPPVVUFIMEUONFACELROYEWPTXPTKBTAETCUAMDAOSKWSVIDRZTYRHPKNRYQQFDHDUCX
PXKPHJKMFPPVVUFIMEUONFACELROYEWPTXPTKBTAETCUAMDAOSKWSVIDRZTYRHPKNRYQQFDHDUCX
THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
76
76
cipher_museum
2.0
public
null
null
stager-route-v2-0414
LTHIBXXERXXTYXXORXXDEXXA
LTHIBXXERXXTYXXORXXDEXXA
LIBERTY OR DEATH
stager_route
stager_route
transposition
{ "type": "integer", "value": 12 }
expert
en
24
24
cipher_museum
2.0
public
null
null
wheatstone-v2-0227
DAUTSNEILKDUOARLIIASFKDARWAITWAKKASSTATSZUSNEUTZUKDTRUTZAORDARIFNEZUSLJJAKEIT
DAUTSNEILKDUOARLIIASFKDARWAITWAKKASSTATSZUSNEUTZUKDTRUTZAORDARIFNEZUSLJJAKEIT
DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "LONDON" }
advanced
en
77
77
cipher_museum
2.0
public
null
null
geheimschreiber-v2-0313
AYIZMTXWRDZARTXSUQCVZFVZVIHRWFDOLEROMOGVDADFUYZIDKHSLFLLQRLTCXXRAQUJAGYW
AYIZMTXWRDZARTXSUQCVZFVZVIHRWFDOLEROMOGVDADFUYZIDKHSLFLLQRLTCXXRAQUJAGYW
ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "GOTHIC" }
expert
en
72
72
cipher_museum
2.0
public
null
null
columnar-transposition-v2-0006
HIPHAESLESTSD
HIPHAESLESTSD
THE PASS IS HELD
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "PALACE" }
intermediate
en
13
13
cipher_museum
2.0
public
null
null
confederate-vigenere-039
HCEYYQIWAOSTGGMIESCDTRFHUJFUEMEPLQRNWIWSRCM
HCEYYQIWAOSTGGMIESCDTRFHUJFUEMEPLQRNWIWSRCM
FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "CONFEDERATE" }
intermediate
en
43
43
cipher_museum
0.2
public
null
null
kryha-v3-0194
CNEMPVZFQIQTZOCJVTJAJNEAESYVYINNCMCTITDFYCVMOIGLORTKIRBGBLNQKKSNSUYAVYJCLKDFUT
CNEMPVZFQIQTZOCJVTJAJNEAESYVYINNCMCTITDFYCVMOIGLORTKIRBGBLNQKKSNSUYAVYJCLKDFUT
THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED
kryha
kryha
machine
{ "type": "keyword", "value": "VIENNA" }
expert
en
78
78
cipher_museum
2.0
public
null
null
cda-0013514
IVPDP CLKUH CFHGL ALXKY JWSLL OSVQK TEXBP PPTNL GEEHE KSX
IVPDP CLKUH CFHGL ALXKY JWSLL OSVQK TEXBP PPTNL GEEHE KSX
THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES
running_key
running_key
null
{}
medium
en
48
48
synthetic_educational
null
null
[ "index_of_coincidence", "probable_plaintext" ]
Running-key cipher: Vigenère with a very long key (e.g. a book passage).
cda-0009781
GNPHE WFMQY OVZEG UBHYR PSGRF GSRIA QSEFQ FHGWA LWBRR KBTQC VAQVR SBQRZ ROEIE RFYSF HNETE SCINA QLRWG GEWOH FWBAQ ELBHB TENCV MERJN ERGCN GVSNQ NNAQQ OFNSH YGVWA XWAUB OGGSE AICEQ FUSZD PESNX ACABO YCVOP RGVQE IPFGV GGHVB A
GNPHE WFMQY OVZEG UBHYR PSGRF GSRIA QSEFQ FHGWA LWBRR KBTQC VAQVR SBQRZ ROEIE RFYSF HNETE SCINA QLRWG GEWOH FWBAQ ELBHB TENCV MERJN ERGCN GVSNQ NNAQQ OFNSH YGVWA XWAUB OGGSE AICEQ FUSZD PESNX ACABO YCVOP RGVQE IPFGV GGHVB A
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION
porta
porta
null
{ "key": "LIBRARY" }
hard
en
186
186
synthetic_educational
null
null
[]
cda-0012212
2532 02852 03860 3830 1033 02834 5062 02572 01635 05727 06604 6010 01636 6046 03832 2830 4423 1617 00358 05686 00393 3788 2266 01616 0695 5746 0340 06290 4720 1582 4428 01019 5738 7946 05046 06351 00720 3791 04786 00991 3471 06026 4723 1936 3857 01656 06343 06305 01632 05665 6017 05034 04733 3841 7899 00648 02915 06663...
2532 02852 03860 3830 1033 02834 5062 02572 01635 05727 06604 6010 01636 6046 03832 2830 4423 1617 00358 05686 00393 3788 2266 01616 0695 5746 0340 06290 4720 1582 4428 01019 5738 7946 05046 06351 00720 3791 04786 00991 3471 06026 4723 1936 3857 01656 06343 06305 01632 05665 6017 05034 04733 3841 7899 00648 02915 06663...
HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION
zimmermann
zimmermann
null
{}
hard
en
187
187
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
two-square-v3-0220
REWBTIONVURGNSMNFOTALFQUBSRPOW
REWBTIONVURGNSMNFOTALFQUBSRPOW
TAXATION WITHOUT REPRESENTATION
two_square
two_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
30
30
cipher_museum
2.0
public
null
null
kama-sutra-227
AWHL ALQL ALRL L RVZW L XVE L RGHDYWCWQ VII LH V XLHOIW TVBBIW
AWHL ALQL ALRL L RVZW L XVE L RGHDYWCWQ VII LH V XLHOIW TVBBIW
VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "MUSEUM" }
intermediate
en
49
62
cipher_museum
0.2
public
null
null
geez-monastic-v3-0053
YAPZJBHLRJLCJDNBLHXYDALUPYISHABTPNVSHBJUPULAJCHBAHOOJMYQAPMILHHEAJPZRXYMJ
YAPZJBHLRJLCJDNBLHXYDALUPYISHABTPNVSHBJUPULAJCHBAHOOJMYQAPMILHHEAJPZRXYMJ
I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "ETHIOPIA" }
advanced
en
73
73
cipher_museum
2.0
public
null
null
scytale-v3-0561
TEEERPTASISXXHTLGAHRNMTXXX
TEEERPTASISXXHTLGAHRNMTXXX
THE TELEGRAPH TRANSMITS
scytale
scytale
transposition
{ "type": "integer", "value": 13 }
intermediate
en
26
26
cipher_museum
2.0
public
null
null
alberti-disk-v2-0887
QRGRYVIJLHQDLMG
QRGRYVIJLHQDLMG
CAVALRY ADVANCES
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 17 }
expert
en
15
15
cipher_museum
2.0
public
null
null
caesar-de-048
IBEJNEGF VZZRE EHPXJNEGF AVZZRE
IBEJNEGF VZZRE EHPXJNEGF AVZZRE
VORWARTS IMMER RUCKWARTS NIMMER
caesar
caesar
substitution
{ "type": "shift", "value": 13 }
beginner
de
28
31
cipher_museum
0.2
public
null
null
chinese-telegraph-v2-0003
0472 0918 0729 0219 1421 0472 0285 0729 0538 0856 0285
0472 0918 0729 0219 1421 0472 0285 0729 0538 0856 0285
HOLD THE LINE
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
44
54
cipher_museum
2.0
public
null
null
cda-0021630
13.1.3 11.4.4 6.4.7 3.5.5 9.2.4 6.3.10 17.3.2 1.1.7 10.5.2 10.5.9 11.1.6 14.3.8 19.1.6 16.5.4 9.1.5 1.3.7 12.4.7 2.5.9 6.6.9 19.5.5 4.5.10 10.2.8 18.3.7 2.2.6 7.5.5 10.4.6 12.5.2 9.2.7 13.6.7 20.3.6 19.2.5 18.3.4 17.2.4 8.4.10 8.1.7 15.3.6 7.6.8 9.2.9 2.3.1 18.6.1 14.4.4 11.2.5 13.3.1 1.5.5 6.1.10 17.1.7 15.6.9 11.5.6 ...
13.1.3 11.4.4 6.4.7 3.5.5 9.2.4 6.3.10 17.3.2 1.1.7 10.5.2 10.5.9 11.1.6 14.3.8 19.1.6 16.5.4 9.1.5 1.3.7 12.4.7 2.5.9 6.6.9 19.5.5 4.5.10 10.2.8 18.3.7 2.2.6 7.5.5 10.4.6 12.5.2 9.2.7 13.6.7 20.3.6 19.2.5 18.3.4 17.2.4 8.4.10 8.1.7 15.3.6 7.6.8 9.2.9 2.3.1 18.6.1 14.4.4 11.2.5 13.3.1 1.5.5 6.1.10 17.1.7 15.6.9 11.5.6 ...
PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
arnold_andre
arnold_andre
null
{}
hard
en
94
94
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
slidex-111
DNOBVIZHCSALOBULLZAKUYWPEWSYOVMHKRESTJJJXYEOWPRQASDCCAUYLTEO
DNOBVIZHCSALOBULLZAKUYWPEWSYOVMHKRESTJJJXYEOWPRQASDCCAUYLTEO
KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT
slidex
slidex
transposition
{ "type": "keyword", "value": "CIPHER" }
advanced
en
60
60
cipher_museum
0.2
public
null
null
lorenz-v2-0096
LIBERTGALITFRATERNITOULAIORTCESMPTSDFMNISSENTLAREVOLUXIONFRANAISEDEMILSEPT
LIBERTGALITFRATERNITOULAIORTCESMPTSDFMNISSENTLAREVOLUXIONFRANAISEDEMILSEPT
LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT
lorenz
lorenz
machine
{ "type": "seed", "value": "TUNNY" }
expert
en
74
74
cipher_museum
2.0
public
null
null
fialka-v2-0088
GQMLLHRWYBBULVOAIBJEZDLWUFGVKBWFTULBRZLFPTRWABGVKLIOIGSOZITSVCOJHUMKOKBSNFBBWQM
GQMLLHRWYBBULVOAIBJEZDLWUFGVKBWFTULBRZLFPTRWABGVKLIOIGSOZITSVCOJHUMKOKBSNFBBWQM
CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
79
79
cipher_museum
2.0
public
null
null
kama-sutra-v2-0029
BYQULXOL PVUXHZ RUOQCVA
BYQULXOL PVUXHZ RUOQCVA
PATIENCE BRINGS VICTORY
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "SANSKRIT" }
intermediate
en
21
23
cipher_museum
2.0
public
null
null
cda-0019008
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 ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X ┌ ┘· Γ L ┌· ─ L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ Γ· X ─ ┘· K ¬ ┌· ┘· ┐ L ─ ¬ ⌒· └ L K K L ┌· ⌐· ┌· L...
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 ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X ┌ ┘· Γ L ┌· ─ L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ Γ· X ─ ┘· K ¬ ┌· ┘· ┐ L ─ ¬ ⌒· └ L K K L ┌· ⌐· ┌· L...
THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY
pigpen
pigpen
null
{}
medium
en
55
55
synthetic_educational
null
null
[ "symbol_frequency", "grid_position_decode" ]
Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids.
fractionated-morse-v3-0099
PWQCTDQUPVLDHSUPOVFSLBQSLDBJFATWSVUHTLLADSSFFNONMTFSLCDDASVWDQFLOPTXESSFLMWVLFJLJPTOFSLOPUBHWSSDLLMVWOCWQDSFNEVSWFFNCTVVJFSLLPTTJEDJMTVJPFWQBJMTOHUHWDSLBPWDBLHUHTOSFUCVTJPDDHWOLMTJPFESJMTFTQNNLCDHUJJLB
PWQCTDQUPVLDHSUPOVFSLBQSLDBJFATWSVUHTLLADSSFFNONMTFSLCDDASVWDQFLOPTXESSFLMWVLFJLJPTOFSLOPUBHWSSDLLMVWOCWQDSFNEVSWFFNCTVVJFSLLPTTJEDJMTVJPFWQBJMTOHUHWDSLBPWDBLHUHTOSFUCVTJPDDHWOLMTJPFESJMTFTQNNLCDHUJJLB
SOCRATES BELIEVED THAT THE UNEXAMINED LIFE IS NOT WORTH LIVING AND THAT WISDOM BEGINS WITH THE ADMISSION OF ONES OWN IGNORANCE THIS APPROACH TO KNOWLEDGE HAS GUIDED WESTERN PHILOSOPHY FOR TWO MILLENNIA
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
201
201
cipher_museum
2.0
public
null
null
cda-0003359
TRRT PTBH HMTI NBEC DVER RGAA ODSI NRSL RTCE NSEE TDLB CHEE AIWH SEEW OCND SOUB OPEA RECL TSPS MLRE SHEG XAOH NAAA BATE YOIE LOAN ESPW ICIS QPRG IOAT EDRL AFRT CUTE KINT OWSX XOIU TSMI FTDT HRUK YEIT SLLT RYHU AEPA HYPT ISTU ASEE IIEO NSPO LTNX
TRRT PTBH HMTI NBEC DVER RGAA ODSI NRSL RTCE NSEE TDLB CHEE AIWH SEEW OCND SOUB OPEA RECL TSPS MLRE SHEG XAOH NAAA BATE YOIE LOAN ESPW ICIS QPRG IOAT EDRL AFRT CUTE KINT OWSX XOIU TSMI FTDT HRUK YEIT SLLT RYHU AEPA HYPT ISTU ASEE IIEO NSPO LTNX
TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
stager_route
stager_route
null
{ "cols": 7 }
hard
en
196
196
synthetic_educational
null
null
[ "column_count_search", "route_pattern_search" ]
Route (Stager) cipher: write into rectangle, read via alternating column route.
adfgx-019
AGDXDDDFDXDGAGAAGFFDXGAXXAXGAGGF
AGDXDDDFDXDGAGAAGFFDXGAXXAXGAGGF
NO PRISONERS TAKEN
adfgx
adfgx
fractionation
{ "polybius": "PRIVACY", "columnar": "GERMAN" }
advanced
en
32
32
cipher_museum
0.2
public
null
null
caesar-la-030
YPH MJHVZ XJINPGDOPM NVBPIOPH ZSKPBIVOPM
YPH MJHVZ XJINPGDOPM NVBPIOPH ZSKPBIVOPM
DUM ROMAE CONSULITUR SAGUNTUM EXPUGNATUR
caesar
caesar
substitution
{ "type": "shift", "value": 21 }
beginner
la
36
40
cipher_museum
0.2
public
null
null
confederate-vigenere-258
TILGHJKRJFYTKMET
TILGHJKRJFYTKMET
BURN AFTER READING
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "SOUTHERN" }
intermediate
en
16
16
cipher_museum
0.2
public
null
null
m209-v3-0172
KWANNYYBPVSUXUMTKKXYJRKUQFMAKMYAYSTQULSPLYYJQUIZNKYYWQNIXVPYAQNRMJLDKXBKVXK
KWANNYYBPVSUXUMTKKXYJRKUQFMAKMYAYSTQULSPLYYJQUIZNKYYWQNIXVPYAQNRMJLDKXBKVXK
THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS
m209
m209
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
75
75
cipher_museum
2.0
public
null
null
joseon-yeokhak-v2-0078
VIDITCVQBAQVXWAQBQWVWNNBPMKWIABIEIQBQVOAQOVITBWKWUUMVKMAPWZMJWUJIZLUMVBIBLIEV
VIDITCVQBAQVXWAQBQWVWNNBPMKWIABIEIQBQVOAQOVITBWKWUUMVKMAPWZMJWUJIZLUMVBIBLIEV
NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "SEOUL" }
beginner
en
77
77
cipher_museum
2.0
public
null
null
cda-0016057
68 61 66 80 69 29 25 52 57 68 50 77 29 82 82 11 61 61 66 80 69 29 25 82 95 50 11 82 29 52 82 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 61 59 20 61 66 50 66 59 66 50 69 29 52 50 65 36 82 80 61 77 68 65 82 68 52 36 57 82 66 66 82...
68 61 66 80 69 29 25 52 57 68 50 77 29 82 82 11 61 61 66 80 69 29 25 82 95 50 11 82 29 52 82 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 61 59 20 61 66 50 66 59 66 50 69 29 52 50 65 36 82 80 61 77 68 65 82 68 52 36 57 82 66 66 82...
A STRONG CLAIM NEEDS STRONG EVIDENCE CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER PERHAPS
wallis_cipher
wallis_cipher
null
{}
hard
en
133
133
synthetic_educational
null
null
[ "number_substitution_decode", "frequency_analysis" ]
Wallis cipher: each letter mapped to a unique two-digit number from a fixed table.
vic-v3-0299
8549321908223169371833812
8549321908223169371833812
LOWER THE DRAWBRIDGE
vic
vic
substitution
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
25
25
cipher_museum
2.0
public
null
null
solitaire-050
LBKSILLXSQIUPCMDXUFAFMGMHCLTIOXMKDPBEFUFJAVWLNBGQTATZIN
LBKSILLXSQIUPCMDXUFAFMGMHCLTIOXMKDPBEFUFJAVWLNBGQTATZIN
THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
55
55
cipher_museum
0.2
public
null
null
porta-v3-0245
CQRBQPNFUCLNEWJVWYA
CQRBQPNFUCLNEWJVWYA
THE TELESCOPE REVEALS
porta
porta
polyalphabetic
{ "type": "keyword", "value": "ITALY" }
intermediate
en
19
19
cipher_museum
2.0
public
null
null
cda-0020069
CHEOL OXEDO TAINK AIIIN OKALO TEDYO KEEDY QOKEE DYORO RQOKA LQOKE DYOXE D
CHEOL OXEDO TAINK AIIIN OKALO TEDYO KEEDY QOKEE DYORO RQOKA LQOKE DYOXE D
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
voynich_render
voynich_render
null
{}
medium
en
61
61
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
affine-de-041
YFS MSNAF UXTFC MDQTG YFQ BNSJ
YFS MSNAF UXTFC MDQTG YFQ BNSJ
DER FRUHE VOGEL FANGT DEN WURM
affine
affine
substitution
{ "type": "keyword", "value": "7,3" }
beginner
de
25
30
cipher_museum
0.2
public
null
null
argenti-v2-0301
75 20 11 12 13 63 64 39 42 25 29 24 18 28 77 46 67 71 33 44 69 75 65 42 27 87 39 38 11 57 71 75 88 77 29 58 22 28 42 59 63 33 75 20 11 49 28 44 42 61 11 27 87 39 38 15 77 69 68 59 28 63 86 11 44 87 41 29 43 28
75 20 11 12 13 63 64 39 42 25 29 24 18 28 77 46 67 71 33 44 69 75 65 42 27 87 39 38 11 57 71 75 88 77 29 58 22 28 42 59 63 33 75 20 11 49 28 44 42 61 11 27 87 39 38 15 77 69 68 59 28 63 86 11 44 87 41 29 43 28
THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE
argenti
argenti
nomenclator
{ "type": "seed", "value": "VATICAN" }
expert
en
140
209
cipher_museum
2.0
public
null
null
cda-0020855
- .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / - --- / . ... - .. -- .- - . / -.- . -.-- / .-.. . -. --. - ....
- .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / - --- / . ... - .. -- .- - . / -.- . -.-- / .-.. . -. --. - ....
THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH
morse_code
morse_code
null
{}
medium
en
59
59
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
cda-0018300
5.30.14 1.41.4 10.49.6 15.14.4 1.4.9 10.18.12 16.30.6 15.33.2 3.38.3 11.42.3 19.43.10 5.1.4 6.7.6 5.39.14 17.14.15 18.48.5 9.15.7 3.25.5 13.35.6 20.40.10 15.6.11 1.15.13 6.33.10 3.39.8 8.42.11 10.50.8 8.41.1 11.17.6 7.46.4 4.47.2 1.12.14 7.39.13 20.23.1 18.4.13
5.30.14 1.41.4 10.49.6 15.14.4 1.4.9 10.18.12 16.30.6 15.33.2 3.38.3 11.42.3 19.43.10 5.1.4 6.7.6 5.39.14 17.14.15 18.48.5 9.15.7 3.25.5 13.35.6 20.40.10 15.6.11 1.15.13 6.33.10 3.39.8 8.42.11 10.50.8 8.41.1 11.17.6 7.46.4 4.47.2 1.12.14 7.39.13 20.23.1 18.4.13
THE INDEX OF COINCIDENCE IS A USEFUL CLUE
book_cipher
book_cipher
null
{}
medium
en
34
34
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
stager-route-v2-0143
CGEODFOEDLLMEOWSSSXA
CGEODFOEDLLMEOWSSSXA
CODED MESSAGE FOLLOWS
stager_route
stager_route
transposition
{ "type": "integer", "value": 10 }
expert
en
20
20
cipher_museum
2.0
public
null
null
fialka-v3-0052
LNWJWRWLKBCHBQDGKMUWABVPSGQWFBUTKWXRGTFQKNIPOLZQUDVKIKXMYFAUPUCZROBDYKULG
LNWJWRWLKBCHBQDGKMUWABVPSGQWFBUTKWXRGTFQKNIPOLZQUDVKIKXMYFAUPUCZROBDYKULG
DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
73
73
cipher_museum
2.0
public
null
null
vic-v2-0099
2835808991824283918189491808986839119224851899168090851919078183868390908086912489809312929183186818948648390807808583290808791
2835808991824283918189491808986839119224851899168090851919078183868390908086912489809312929183186818948648390807808583290808791
LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT
vic
vic
substitution
{ "type": "keyword", "value": "HOLLOW" }
advanced
en
127
127
cipher_museum
2.0
public
null
null
wallis-cipher-v3-0134
90 15 18 46 47 45 54 85 81 91 90 67 84 15 44 25 79 45 91 90 55 63 88 20 76 53 63 66 15 18 45 54 85 81 91
90 15 18 46 47 45 54 85 81 91 90 67 84 15 44 25 79 45 91 90 55 63 88 20 76 53 63 66 15 18 45 54 85 81 91
TAXATION WITHOUT REPRESENTATION
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "ENGLAND" }
expert
en
70
104
cipher_museum
2.0
public
null
null
hill-233
PYSXYKPQWGREFAZCMJAMZJMJPFUINSPWZKKVNNUJVQRNZPEABXZPNDRRFZTX
PYSXYKPQWGREFAZCMJAMZJMJPFUINSPWZKKVNNUJVQRNZPEABXZPNDRRFZTX
LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER
hill
hill
polygraphic
{ "a": 5, "b": 3, "c": 2, "d": 7 }
advanced
en
60
60
cipher_museum
0.2
public
null
null
cda-0018818
array miles outer daily early local clear array north carry light alert stage south input final years point above three track enemy raids needs south
array miles outer daily early local clear array north carry light alert stage south input final years point above three track enemy raids needs south
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN NEVER
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-v2-0470
NUHNFLGTANRJOAXOZXDFGHPNEPRUWPTLJBFXEELATWSPUARNUYPWNDHXHBTROPLHWDTJGUTPNRJNRS
NUHNFLGTANRJOAXOZXDFGHPNEPRUWPTLJBFXEELATWSPUARNUYPWNDHXHBTROPLHWDTJGUTPNRJNRS
YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT
diana
diana
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
78
78
cipher_museum
2.0
public
null
null
sigaba-185
YFBOIGBWWSDUNFX
YFBOIGBWWSDUNFX
THE COAST IS CLEAR
sigaba
sigaba
machine
{ "type": "seed", "value": "MUSEUM" }
expert
en
15
15
cipher_museum
0.2
public
null
null
adfgvx-v3-0145
AADXGXFGAAFDAAVAVAAXDADGAGGVFFGADAFGXAXFDA
AADXGXFGAAFDAAVAVAAXDADGAGGVFFGADAFGXAXFDA
THE TELEGRAPH TRANSMITS
adfgvx
adfgvx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
42
42
cipher_museum
2.0
public
null
null
copiale-v2-0332
T4 R0 V3 U9 S6 F9 U0 V4 J9 H3 X4 B9 F1 G1 F9 G3 V3 Y8 Q1 Q5 J6 G1 A1 V7 O9 N2 H0 J6 Q6 G2 D3 G4 A7 O7 W6 E3 H0 M7 G3 U6 F7 G0 E0 I5 K8 T2 W4 A1 V8 V3 A6 Q1 H0 O2 P3 V0 U9 R0 D0 C7 W6 P6 I5 G2 J2 V8 C1 V7 A5 R7 F7 M4 R0 W5 A3 V2 R0 T4
T4 R0 V3 U9 S6 F9 U0 V4 J9 H3 X4 B9 F1 G1 F9 G3 V3 Y8 Q1 Q5 J6 G1 A1 V7 O9 N2 H0 J6 Q6 G2 D3 G4 A7 O7 W6 E3 H0 M7 G3 U6 F7 G0 E0 I5 K8 T2 W4 A1 V8 V3 A6 Q1 H0 O2 P3 V0 U9 R0 D0 C7 W6 P6 I5 G2 J2 V8 C1 V7 A5 R7 F7 M4 R0 W5 A3 V2 R0 T4
THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT
copiale
copiale
substitution
{ "type": "keyword", "value": "MYSTERY" }
advanced
en
156
233
cipher_museum
2.0
public
null
null
trifid-v2-0083
UBCDGGGMXMCBDFCYRROVTGIDADJGDTAPDOACUXCODAG+ZUPYYMCOXCQCJPUNXPP+QCTUDKIQRAULUAO
UBCDGGGMXMCBDFCYRROVTGIDADJGDTAPDOACUXCODAG+ZUPYYMCOXCQCJPUNXPP+QCTUDKIQRAULUAO
THE PRICE OF LIBERTY IS ETERNAL VIGILANCE AND THE WILL TO DEFEND IT AGAINST ALL FOES AND THREATS
trifid
trifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
79
79
cipher_museum
2.0
public
null
null
cardano-autokey-v3-0190
FLWATVJGBFTPFEBFENTNLRLTHDHLVGALYHVBXHVLTTXWSRVGKBBHDRFKMVKNGVMHSUKULAGFHXGVBWB
FLWATVJGBFTPFEBFENTNLRLTHDHLVGALYHVBXHVLTTXWSRVGKBBHDRFKMVKNGVMHSUKULAGFHXGVBWB
ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "FLORENCE" }
advanced
en
79
79
cipher_museum
2.0
public
null
null
vernam-v2-0004
SUQUQYNLJAOLOU
SUQUQYNLJAOLOU
STORM THE BREACH
vernam
vernam
stream
{ "type": "pad", "value": "ABCDEFGH (repeating)" }
expert
en
14
14
cipher_museum
2.0
public
null
null
red-type-a-v3-0322
CUGIVPOQUYFIRPGA
CUGIVPOQUYFIRPGA
PER ASPERA AD ASTRA
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "MIKADO" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
chinese-telegraph-v2-0111
1421 0472 0285 0012 1255 1421 0918 0347 1672 0012 1255 0538 1346 0918 0347 1599 0538 1421 0012 0729 0538 0792 1024 0918 1255 1421 0012 0856 0156 0285 1421 0918 1421 0472 0285 1346 1421 0012 1421 0285 0538 1421 0538 1346 0012 0792 0012 1421 1421 0285 1255 0918 0347 0729 0538 0347 0285 0012 0856 0219 0219 0285 0012 1421 ...
1421 0472 0285 0012 1255 1421 0918 0347 1672 0012 1255 0538 1346 0918 0347 1599 0538 1421 0012 0729 0538 0792 1024 0918 1255 1421 0012 0856 0156 0285 1421 0918 1421 0472 0285 1346 1421 0012 1421 0285 0538 1421 0538 1346 0012 0792 0012 1421 1421 0285 1255 0918 0347 0729 0538 0347 0285 0012 0856 0219 0219 0285 0012 1421 ...
THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
592
739
cipher_museum
2.0
public
null
null
monoalphabetic-v2-1324
SPTQS DK SBA ILPR WDSB CII SBDKA BACPS CKR IACK KLS TKSL SBDKA LWK TKRAPQSCKRDKE DK CII WCYQ
SPTQS DK SBA ILPR WDSB CII SBDKA BACPS CKR IACK KLS TKSL SBDKA LWK TKRAPQSCKRDKE DK CII WCYQ
TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "COURAGE" }
beginner
en
75
92
cipher_museum
2.0
public
null
null
vigenere-v3-1530
WFCHFDVMYMLEPZRFCQAJSWYIPQIOXDLIGCAHPWOFWPLZANTTNHCLYZGBEVWZMASKVTCSXVGJ
WFCHFDVMYMLEPZRFCQAJSWYIPQIOXDLIGCAHPWOFWPLZANTTNHCLYZGBEVWZMASKVTCSXVGJ
DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "TRIUMPH" }
intermediate
en
72
72
cipher_museum
2.0
public
null
null
scytale-097
GRIIGDVIPEVAMETEMRLEIIDCBEKEAHRTETHNYSROAY
GRIIGDVIPEVAMETEMRLEIIDCBEKEAHRTETHNYSROAY
GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY
scytale
scytale
transposition
{ "type": "integer", "value": 3 }
intermediate
en
42
42
cipher_museum
0.2
public
null
null
four-square-v3-0099
PCLNIGCLHSQSBHITLOEY
PCLNIGCLHSQSBHITLOEY
THE LEGIONS STAND READY
four_square
four_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
cda-0006181
EOCHTTSINSAWDTATILGOSNIOEOSHEDULTSQUOARYFASRGENTINTIKXGXANNGREEREOPSHSEADPLSEESRENUA
EOCHTTSINSAWDTATILGOSNIOEOSHEDULTSQUOARYFASRGENTINTIKXGXANNGREEREOPSHSEADPLSEESRENUA
GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
double_transposition
double_transposition
null
{ "key1": "SECURE", "key2": "FREEDOM" }
hard
en
84
84
synthetic_educational
null
null
[ "key_length_search", "anagram_recovery" ]
Double columnar transposition: apply columnar twice for stronger security.
alberti-disk-v2-0777
AYCGFMSVLYO
AYCGFMSVLYO
KNOW THYSELF
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 16 }
expert
en
11
11
cipher_museum
2.0
public
null
null
two-square-v2-0370
BPNTOAQNOPBEENKCDE
BPNTOAQNOPBEENKCDE
CONTACT HAS BEEN MADE
two_square
two_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
18
18
cipher_museum
2.0
public
null
null
affine-v3-0172
GWN DUNNK RQ IZTWG ZD GWN JIGZLBGN DUNNK IZLZG ZO GWN JOZMNADN NZODGNZO KNLRODGABGNK GWZD
GWN DUNNK RQ IZTWG ZD GWN JIGZLBGN DUNNK IZLZG ZO GWN JOZMNADN NZODGNZO KNLRODGABGNK GWZD
THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS
affine
affine
substitution
{ "a": 3, "b": 1 }
beginner
en
75
89
cipher_museum
2.0
public
null
null