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2.11k
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stringlengths
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282
label
stringclasses
81 values
cipher
stringclasses
81 values
cipher_family
stringclasses
13 values
key
unknown
difficulty
stringclasses
7 values
language
stringclasses
8 values
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int64
6
1.09k
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int64
6
1.28k
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2 values
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stringclasses
2 values
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stringclasses
1 value
attack_methods
listlengths
0
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educational_note
stringclasses
32 values
typex-v3-0331
ESVKMRZDSCDSHKNWPKLN
ESVKMRZDSCDSHKNWPKLN
THE ALCHEMIST SUCCEEDS
typex
typex
machine
{ "type": "keyword", "value": "WINSTON" }
expert
en
20
20
cipher_museum
2.0
public
null
null
adfgx-v2-0470
GDXFAXDXDFAXDGDAXGGGFADFXGFXGGGXDDADXAGDFDXDGA
GDXFAXDXDFAXDGDAXGGGFADFXGFXGGGXDDADXAGDFDXDGA
CARTHAGE MUST BE DESTROYED
adfgx
adfgx
fractionation
{ "polybius": "WISDOM", "columnar": "COURAGE" }
advanced
en
46
46
cipher_museum
2.0
public
null
null
cda-0014743
THEBZ STLES SONSS HOWWH ERETZ EMETH ODFAI LSBDX
THEBZ STLES SONSS HOWWH ERETZ EMETH ODFAI LSBDX
THE BEST LESSONS SHOW WHERE THE METHOD FAILS
commercial_code
commercial_code
null
{}
medium
en
40
40
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
nomenclator-v2-0341
60 02 01 02 09 14 07 20 15 14 16 12 15 20 63 01 19 19 01 19 19 09 14 01 20 05 71 05 12 09 26 01 02 05 20 08 23 01 19 21 14 03 15 22 05 18 05 04 02 25 06 18 01 14 03 09 19 23 01 12 19 09 14 07 08 01 13 64 20 09 13 05
60 02 01 02 09 14 07 20 15 14 16 12 15 20 63 01 19 19 01 19 19 09 14 01 20 05 71 05 12 09 26 01 02 05 20 08 23 01 19 21 14 03 15 22 05 18 05 04 02 25 06 18 01 14 03 09 19 23 01 12 19 09 14 07 08 01 13 64 20 09 13 05
THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
144
215
cipher_museum
2.0
public
null
null
hill-v3-0318
DMWGMRUONPBOJXVX
DMWGMRUONPBOJXVX
THE GATES HOLD FIRM
hill
hill
polygraphic
{ "a": 9, "b": 2, "c": 7, "d": 5 }
advanced
en
16
16
cipher_museum
2.0
public
null
null
cda-0017497
66 36 82 76 69 59 80 61 72 59 68 80 82 52 50 65 36 82 80 59 61 82 61 66 89 69 55 82 43 89 69 80 11 65 69 57 43 20 50 59 61 61 72 59 68 80 82 61 66 36 82 68 80 52 36 50 66 82 52 66 59 80 82 61 36 69 59 57 11 77 68 55 82 77 50 61 59 61 82 36 68 80 11 82 80
66 36 82 76 69 59 80 61 72 59 68 80 82 52 50 65 36 82 80 59 61 82 61 66 89 69 55 82 43 89 69 80 11 65 69 57 43 20 50 59 61 61 72 59 68 80 82 61 66 36 82 68 80 52 36 50 66 82 52 66 59 80 82 61 36 69 59 57 11 77 68 55 82 77 50 61 59 61 82 36 68 80 11 82 80
THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE ARCHITECTURE SHOULD MAKE MISUSE HARDER
wallis_cipher
wallis_cipher
null
{}
hard
en
85
85
synthetic_educational
null
null
[ "number_substitution_decode", "frequency_analysis" ]
Wallis cipher: each letter mapped to a unique two-digit number from a fixed table.
cda-0017368
12.47.15 18.50.6 16.15.10 9.32.11 8.6.11 17.50.12 11.30.10 11.8.6 15.41.12 7.23.3 5.7.13 3.44.6 11.22.12 3.49.7 4.46.5 7.1.10 4.36.2 14.33.9 15.36.9 3.19.7 11.36.11 1.2.10 19.34.13 11.41.9 4.9.6 10.9.2 19.7.3 12.24.13 9.16.8 9.6.14 2.46.4 13.38.7 6.7.11 1.10.3 16.37.4 6.38.6 15.5.1 4.3.10 2.46.2 1.39.14 16.34.14 8.4.3 ...
12.47.15 18.50.6 16.15.10 9.32.11 8.6.11 17.50.12 11.30.10 11.8.6 15.41.12 7.23.3 5.7.13 3.44.6 11.22.12 3.49.7 4.46.5 7.1.10 4.36.2 14.33.9 15.36.9 3.19.7 11.36.11 1.2.10 19.34.13 11.41.9 4.9.6 10.9.2 19.7.3 12.24.13 9.16.8 9.6.14 2.46.4 13.38.7 6.7.11 1.10.3 16.37.4 6.38.6 15.5.1 4.3.10 2.46.2 1.39.14 16.34.14 8.4.3 ...
INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
book_cipher
book_cipher
null
{}
hard
en
185
185
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
typex-v2-0367
EJFJYLRTSUTIGILLLFWUASEZLSZYRUHBQBADEZPNSLNPVTYRXNAUSIJOBXNOSYDVWFOOHOJPXIZZCSXRQZMPNPSFRYRJGZLHUCTQHHJKWVVRNQNWSLJMGNFJTVAMKQAFQFQWYCCCMYNTGYODZYIPSXOVKULIMCRSF
EJFJYLRTSUTIGILLLFWUASEZLSZYRUHBQBADEZPNSLNPVTYRXNAUSIJOBXNOSYDVWFOOHOJPXIZZCSXRQZMPNPSFRYRJGZLHUCTQHHJKWVVRNQNWSLJMGNFJTVAMKQAFQFQWYCCCMYNTGYODZYIPSXOVKULIMCRSF
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
typex
typex
machine
{ "type": "keyword", "value": "EMPIRE" }
expert
en
161
161
cipher_museum
2.0
public
null
null
venona-pad-reuse-040
BIQNL4HHCNQ7MHYQIDOLVLGYL2PUOZQMJBGTZG3ZD5TOGUIT
BIQNL4HHCNQ7MHYQIDOLVLGYL2PUOZQMJBGTZG3ZD5TOGUIT
WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER
venona_pad_reuse
venona_pad_reuse
stream
{ "type": "keyword", "value": "XMCKL" }
expert
en
48
48
cipher_museum
0.2
public
null
null
gronsfeld-v2-0571
KRZPEDIMQNPMTOGQHIZECXKLTJINMAXITINFXNMECVZPAPHJIRMRKASYEYCPQRZPEHEIMOHHKMP
KRZPEDIMQNPMTOGQHIZECXKLTJINMAXITINFXNMECVZPAPHJIRMRKASYEYCPQRZPEHEIMOHHKMP
IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "24680" }
intermediate
en
75
75
cipher_museum
2.0
public
null
null
aeneas-tacticus-v3-0024
20 8 5 23 9 14 4 9 19 23 9 20 8 21 19
20 8 5 23 9 14 4 9 19 23 9 20 8 21 19
THE WIND IS WITH US
aeneas_tacticus
aeneas_tacticus
steganography
{ "type": "none", "value": null }
expert
en
23
37
cipher_museum
2.0
public
null
null
cda-0014689
35 34 31 54 12 24 45 43 15 33 13 34 14 15 14 31 15 44 44 15 42 43 11 43 35 11 24 42 43 34 21 33 45 32 12 15 42 43 21 42 34 32 34 33 15 44 34 21 24 51 15 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54
35 34 31 54 12 24 45 43 15 33 13 34 14 15 14 31 15 44 44 15 42 43 11 43 35 11 24 42 43 34 21 33 45 32 12 15 42 43 21 42 34 32 34 33 15 44 34 21 24 51 15 43 15 13 45 42 24 44 54 13 31 11 24 32 43 43 23 34 45 31 14 12 15 44 15 43 44 15 14 45 33 14 15 42 43 13 42 45 44 24 33 54
POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY
polybius
polybius
null
{}
hard
en
92
92
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
joseon-yeokhak-v2-0240
HVOHCBHVSTWFGHROMCTXOBIOFMWBHVSMSOFCTCIFZCFRCBSHVCIGOBRSWUVHVIBRFSROBRGWLHMHVFSSOZZDSFGCBGVSZROGGZOJSGKWHVWBOBMGHOHSWBFSPSZZWCBOUOWBGHHVSIBWHSRGHOHSGGVOZZPSTFSS
HVOHCBHVSTWFGHROMCTXOBIOFMWBHVSMSOFCTCIFZCFRCBSHVCIGOBRSWUVHVIBRFSROBRGWLHMHVFSSOZZDSFGCBGVSZROGGZOJSGKWHVWBOBMGHOHSWBFSPSZZWCBOUOWBGHHVSIBWHSRGHOHSGGVOZZPSTFSS
THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "JOSEON" }
beginner
en
160
160
cipher_museum
2.0
public
null
null
geez-monastic-v3-0012
IJNUZNVL
IJNUZNVL
DEUS VULT
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "ETHIOPIA" }
advanced
en
8
8
cipher_museum
2.0
public
null
null
diana-v3-0599
RMMGIRMBHZPXRWDQFREONRMMLVJWWZEINYMBHZPRAAUBKFVCRGUFTXEMBCEOERAHBBFVUCHGGHOPWHUZLUPM
RMMGIRMBHZPXRWDQFREONRMMLVJWWZEINYMBHZPRAAUBKFVCRGUFTXEMBCEOERAHBBFVUCHGGHOPWHUZLUPM
SIGNALS INTELLIGENCE OR SIGINT INVOLVES INTERCEPTION AND ANALYSIS OF ELECTRONIC COMMUNICATIONS
diana
diana
polyalphabetic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
84
84
cipher_museum
2.0
public
null
null
gronsfeld-v2-0131
ECXCNTACFXCPEGU
ECXCNTACFXCPEGU
CAVALRY ADVANCES
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "22222" }
intermediate
en
15
15
cipher_museum
2.0
public
null
null
polybius-v2-0019
13 34 33 44 11 13 44 23 11 43 12 15 15 33 32 11 14 15
13 34 33 44 11 13 44 23 11 43 12 15 15 33 32 11 14 15
CONTACT HAS BEEN MADE
polybius
polybius
substitution
{ "type": "none", "value": null }
beginner
en
36
53
cipher_museum
2.0
public
null
null
cda-0006403
HUS PVTWQ QWCVSE QCZPWASG O BCYKPVGG FCIODS JWHU FFONGCAGVFWBN SAFFBBM ZSOFGFRE IAQSEFOVNHL WB O RWFFFVPIGWCA YSEQYUANSE DEWBNWDYS GOKG GVS FKGGSA ZGGG PS FSQHDS RHSA WN RNSZK YAAKF OZTAFVFVZ PFHFS SAFNS KBDYF ABYK KUSB GVS XSM FBONS WF EAOZZ
HUS PVTWQ QWCVSE QCZPWASG O BCYKPVGG FCIODS JWHU FFONGCAGVFWBN SAFFBBM ZSOFGFRE IAQSEFOVNHL WB O RWFFFVPIGWCA YSEQYUANSE DEWBNWDYS GOKG GVS FKGGSA ZGGG PS FSQHDS RHSA WN RNSZK YAAKF OZTAFVFVZ PFHFS SAFNS KBDYF ABYK KUSB GVS XSM FBONS WF EAOZZ
THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL
porta
porta
null
{ "key": "KEY" }
hard
en
205
205
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
playfair-v3-0600
RKOZOCKFHNHKTXFEPSFHTNZY
RKOZOCKFHNHKTXFEPSFHTNZY
MESSAGE RECEIVED CLEARLY
playfair
playfair
polygraphic
{ "type": "keyword", "value": "TRIUMPH" }
intermediate
en
24
24
cipher_museum
2.0
public
null
null
adfgx-v2-0676
XDAGDGGAAAAAADGAADFFDAFAGFGAGAXXAXDXFGXAGXXXGDGXFXAAGAAAGFAGDGAGGDFFGGAFFXFGAGAGGXGFAGFDGGFDGDXADFXGFGXDXFFFADGAFGFAGFDAGAXXXGXGFGGFAFXDGGDGGGXAGAFDDAAFAAFF
XDAGDGGAAAAAADGAADFFDAFAGFGAGAXXAXDXFGXAGXXXGDGXFXAAGAAAGFAGDGAGGDFFGGAFFXFGAGAGGXGFAGFDGGFDGDXADFXGFGXDXFFFADGAFGFAGFDAGAXXXGXGFGGFAFXDGGDGGGXAGAFDDAAFAAFF
YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT
adfgx
adfgx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
156
156
cipher_museum
2.0
public
null
null
solitaire-v3-0182
XMNDGGLQIDPNMIAGLYOXEIOSSTSUUIWWNRGYATCRDFAKIVAJHUETWUUPIZOCOODMGGGUXITKEHUL
XMNDGGLQIDPNMIAGLYOXEIOSSTSUUIWWNRGYATCRDFAKIVAJHUETWUUPIZOCOODMGGGUXITKEHUL
THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC
solitaire
solitaire
stream
{ "type": "passphrase", "value": "SCHNEIER" }
expert
en
76
76
cipher_museum
2.0
public
null
null
adfgx-v3-0378
DGDGGGGFDGFXAGDAADFGXAADAXGAAAFFAADGDFADDAAAADFAFDGXGGXAAFDGDFAAFGXFDGFGXAFFXDAGXGADGAADGFXFXAGDFAFFGAADXAXDDFAAGXADAGAFFAAXGAGGADXXAAXAFDDAGGXDDXGDDAGGXDFGAXFDDAFXAFFGFDDGDADGADFFFGGDXGGGGXXDDFAGFAFGDFDDGGGDAAGFDDFGAFDXADAFFAAGAGFGDGAAGAAXFAGDGGDAFAFGDFXGXGGGADDDFAGADXADDDGFAXAAGGGDFFXDFGFAFDDAFDGFADAAAFFFDAGGGDXFXDDD...
DGDGGGGFDGFXAGDAADFGXAADAXGAAAFFAADGDFADDAAAADFAFDGXGGXAAFDGDFAAFGXFDGFGXAFFXDAGXGADGAADGFXFXAGDFAFFGAADXAXDDFAAGXADAGAFFAAXGAGGADXXAAXAFDDAGGXDDXGDDAGGXDFGAXFDDAFXAFFGFDDGDADGADFFFGGDXGGGGXXDDFAGFAFGDFDDGGGDAAGFDDFGAFDXADAFFAAGAGFGDGAAGAAXFAGDGGDAFAFGDFXGXGGGADDDFAGADXADDDGFAXAAGGGDFFXDFGFAFDDAFDGFADAAAFFFDAGGGDXFXDDD...
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
adfgx
adfgx
fractionation
{ "polybius": "DRAGON", "columnar": "THUNDER" }
advanced
en
340
340
cipher_museum
2.0
public
null
null
porta-v3-0044
AUYMPRRJUGPILVBWD
AUYMPRRJUGPILVBWD
THE RAILWAY ARRIVES
porta
porta
polyalphabetic
{ "type": "keyword", "value": "NAPLES" }
intermediate
en
17
17
cipher_museum
2.0
public
null
null
trifid-v3-0090
UC+DIYPLLKRTPCH+WXEEQWG+OBG++++JPZOOMLASDBLKNIMGRYOLDHGXDBPUVGZKHYCPTJBASJCR+V
UC+DIYPLLKRTPCH+WXEEQWG+OBG++++JPZOOMLASDBLKNIMGRYOLDHGXDBPUVGZKHYCPTJBASJCR+V
THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED
trifid
trifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
78
78
cipher_museum
2.0
public
null
null
m94-v3-0113
PKTFNUWYWIHKFCTHSW
PKTFNUWYWIHKFCTHSW
DEAD MEN TELL NO TALES
m94
m94
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
18
18
cipher_museum
2.0
public
null
null
geez-monastic-093
XFOKCSBXFUCAEOFPZOXKDOPIUTDOPIUXTOSD
XFOKCSBXFUCAEOFPZOXKDOPIUTDOPIUXTOSD
THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "CIPHER" }
advanced
en
36
36
cipher_museum
0.2
public
null
null
alberti-disk-v2-0798
VOKJXUEVLDOUFTOCESMWNINGNCNTRFSVGGRXJDITKDWAWXQ
VOKJXUEVLDOUFTOCESMWNINGNCNTRFSVGGRXJDITKDWAWXQ
THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 16 }
expert
en
47
47
cipher_museum
2.0
public
null
null
nomenclator-v3-0302
23 08 05 14 05 22 05 18 01 14 25 06 15 18 13 62 07 15 22 05 18 14 13 05 14 20 02 05 03 15 13 05 19 04 05 19 20 18 21 03 20 09 22 05 62 20 08 05 19 05 05 14 04 19 09 20 09 19 60 18 09 07 08 20 62 60 16 05 15 16 12 05 63 01 12 20 05 18 15 18 63 01 02 15 12 09 19 08 09 20 61 63 09 14 19 20 09 20 21 20 05 14 05 23 07 15 22...
23 08 05 14 05 22 05 18 01 14 25 06 15 18 13 62 07 15 22 05 18 14 13 05 14 20 02 05 03 15 13 05 19 04 05 19 20 18 21 03 20 09 22 05 62 20 08 05 19 05 05 14 04 19 09 20 09 19 60 18 09 07 08 20 62 60 16 05 15 16 12 05 63 01 12 20 05 18 15 18 63 01 02 15 12 09 19 08 09 20 61 63 09 14 19 20 09 20 21 20 05 14 05 23 07 15 22...
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
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
298
446
cipher_museum
2.0
public
null
null
one-time-pad-089
HLTWMNAWDEGOYUDDXBOKULBUJCZJXOOBKWVYHHBAYO
HLTWMNAWDEGOYUDDXBOKULBUJCZJXOOBKWVYHHBAYO
IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "ZYXWVUTS (repeating)" }
expert
en
42
42
cipher_museum
0.2
public
null
null
affine-v2-0464
TLW ACOQOAQ TWOT BQPRO JWZWCTWR OWEYWPMWO TU RWTWJKQPW TLW AWS FWPGTL UB C DQGWPWJW MQZLWJ AWS
TLW ACOQOAQ TWOT BQPRO JWZWCTWR OWEYWPMWO TU RWTWJKQPW TLW AWS FWPGTL UB C DQGWPWJW MQZLWJ AWS
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
affine
affine
substitution
{ "a": 5, "b": 2 }
beginner
en
79
94
cipher_museum
2.0
public
null
null
nomenclator-v2-0378
23 05 60 16 05 15 16 12 05 62 60 21 14 09 20 05 04 19 20 01 20 05 19 64 15 18 04 05 18 63 06 15 18 13 01 13 15 18 05 16 05 18 06 05 03 20 21 14 09 15 14 05 19 20 01 02 12 09 19 08 10 21 19 20 09 03 05 09 14 19 21 18 05 04 15 13 05 19 20 09 03 20 18 01 14 17 21 09 12 09 20 25 16 18 15 22 09 04 05 06 15 18 60 03 15 13 13...
23 05 60 16 05 15 16 12 05 62 60 21 14 09 20 05 04 19 20 01 20 05 19 64 15 18 04 05 18 63 06 15 18 13 01 13 15 18 05 16 05 18 06 05 03 20 21 14 09 15 14 05 19 20 01 02 12 09 19 08 10 21 19 20 09 03 05 09 14 19 21 18 05 04 15 13 05 19 20 09 03 20 18 01 14 17 21 09 12 09 20 25 16 18 15 22 09 04 05 06 15 18 60 03 15 13 13...
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
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
326
488
cipher_museum
2.0
public
null
null
cda-0013882
QOKE EDYO XEDO KEED YRAI INOK EEDY SHAI INOK AINQ OKEE DYLK AIIN CHOL CHEO LSHE EDYD AIIN CHOL SHAI INYT AIIN OROR OTAI INOK SHYY PCHO LKAI IINC TAII NOKE EDYO TAII NOKE EDYO KEDY LKAI INSH EOLD ARAL OKEE DYRC HEOL CHED ALOR ORSH ALLK AIIN YTAI INSH ARAL OKAL OKED YSHA IINO RORL KAII NOTA IINO KEDY CHED ALCT AIIN OKED ...
QOKE EDYO XEDO KEED YRAI INOK EEDY SHAI INOK AINQ OKEE DYLK AIIN CHOL CHEO LSHE EDYD AIIN CHOL SHAI INYT AIIN OROR OTAI INOK SHYY PCHO LKAI IINC TAII NOKE EDYO TAII NOKE EDYO KEDY LKAI INSH EOLD ARAL OKEE DYRC HEOL CHED ALOR ORSH ALLK AIIN YTAI INSH ARAL OKAL OKED YSHA IINO RORL KAII NOTA IINO KEDY CHED ALCT AIIN OKED ...
ATBASH ENCODES BY REVERSING THE ALPHABET THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
voynich_render
voynich_render
null
{}
hard
en
257
257
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
cardano-autokey-v2-0082
FAVGWADVQCNABHKVQQQNFVKALTPSLTRVGQBQHQZRHWHFVTTETBBTSHWPTZGGDWLVJSNGTYYNNOPTWVMZH
FAVGWADVQCNABHKVQQQNFVKALTPSLTRVGQBQHQZRHWHFVTTETBBTSHWPTZGGDWLVJSNGTYYNNOPTWVMZH
THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MILAN" }
advanced
en
81
81
cipher_museum
2.0
public
null
null
bazeries-283
SLYEQMHCIAJOGVJKFSBWMYUJPTDYEQNJRXZQMTYGUAMYEMY
SLYEQMHCIAJOGVJKFSBWMYUJPTDYEQNJRXZQMTYGUAMYEMY
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER
bazeries
bazeries
transposition
{ "type": "integer", "value": 31 }
advanced
en
47
47
cipher_museum
0.2
public
null
null
columnar-transposition-046
SAVAOASGRIIURSYAREOFTAOODNSUHRTHNNREEEGFRUOHTFCNEROTBHTSO
SAVAOASGRIIURSYAREOFTAOODNSUHRTHNNREEEGFRUOHTFCNEROTBHTSO
FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "ZEBRA" }
intermediate
en
57
57
cipher_museum
0.2
public
null
null
one-time-pad-v2-0098
LBXLHFKZADOYALZDIJMXHJOPSDNPUVSSVHZJDZPBGAEJINYQESCMBBLRIQIPMUYPFRFCE
LBXLHFKZADOYALZDIJMXHJOPSDNPUVSSVHZJDZPBGAEJINYQESCMBBLRIQIPMUYPFRFCE
LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "ABCDEFGH (repeating)" }
expert
en
69
69
cipher_museum
2.0
public
null
null
kama-sutra-v2-0205
QXWSYL HU TYHWWLQ HQ WIL EXQJSXJL CK DXWILDXWHOU XQM HWU OIXYXOWLYU XYL WYHXQJELU XQM OHYOELU
QXWSYL HU TYHWWLQ HQ WIL EXQJSXJL CK DXWILDXWHOU XQM HWU OIXYXOWLYU XYL WYHXQJELU XQM OHYOELU
NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "VATSYANA" }
intermediate
en
79
93
cipher_museum
2.0
public
null
null
rail-fence-v2-0538
NOVUSMOURRDOOLSCE
NOVUSMOURRDOOLSCE
NOVUS ORDO SECLORUM
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 11 }
intermediate
en
17
17
cipher_museum
2.0
public
null
null
copiale-v2-0243
O9 O1 Z4 H1 E8 K8 S8 P0 Z4 F6 V2 G6 N4 P5 N3 I3 M4 D6 E1 F1 N9 Q1 Y8 G7 P5 X6 P2 K2 D8 G4 L5 F7 K1 S7 G5 O3 O9 A3 F1 K1 X6 E8 O4 K4 Q4 G5 M9 O4 H4 Z4 S8 S7 Q1 C0 V8 C6 S8 E8 S0 H1 A2 C6 P8 L7 F1 O1 D4 Q8 K1 U3 O0 S7 F6 L2 T4 S7 Y6 L5 O2 N8 K4 L7 S8 I5 K2 F6 J0 O4 U2 C0 T4 S7 A2 G7 H1 L2 K4 F6 I3 W1 E0 T4 R0 P7 O4 H4 X6...
O9 O1 Z4 H1 E8 K8 S8 P0 Z4 F6 V2 G6 N4 P5 N3 I3 M4 D6 E1 F1 N9 Q1 Y8 G7 P5 X6 P2 K2 D8 G4 L5 F7 K1 S7 G5 O3 O9 A3 F1 K1 X6 E8 O4 K4 Q4 G5 M9 O4 H4 Z4 S8 S7 Q1 C0 V8 C6 S8 E8 S0 H1 A2 C6 P8 L7 F1 O1 D4 Q8 K1 U3 O0 S7 F6 L2 T4 S7 Y6 L5 O2 N8 K4 L7 S8 I5 K2 F6 J0 O4 U2 C0 T4 S7 A2 G7 H1 L2 K4 F6 I3 W1 E0 T4 R0 P7 O4 H4 X6...
FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD
copiale
copiale
substitution
{ "type": "keyword", "value": "TEMPLE" }
advanced
en
358
536
cipher_museum
2.0
public
null
null
kryptos-v3-0200
FXWHXKUUMDTSXGDJTZMJQZXTLKZNYCVQMEIXPTLOVCBXBXWMUYKXHCJWWHPCXTSXQTYDBAMXPDXFSHFRIMVXYHDYDXIYBEQDKUUMFLSJUWITZVFGVDTHXILVKZUYXCDIHLUZGWFHHKVJXLWMZVOMFWXKIGRHWQBYEVGWN
FXWHXKUUMDTSXGDJTZMJQZXTLKZNYCVQMEIXPTLOVCBXBXWMUYKXHCJWWHPCXTSXQTYDBAMXPDXFSHFRIMVXYHDYDXIYBEQDKUUMFLSJUWITZVFGVDTHXILVKZUYXCDIHLUZGWFHHKVJXLWMZVOMFWXKIGRHWQBYEVGWN
ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "LANGLEY" }
advanced
en
165
165
cipher_museum
2.0
public
null
null
purple-v3-0182
YFNHSTBKXIUXLLNAEBVPLNXWGCQNTTQVUVNYFXGCVCXEOMNCGNYVSUONIKIXNYJHBBHPZJZYFLWN
YFNHSTBKXIUXLLNAEBVPLNXWGCQNTTQVUVNYFXGCVCXEOMNCGNYVSUONIKIXNYJHBBHPZJZYFLWN
THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC
purple
purple
machine
{ "type": "seed", "value": "YAMAMOTO" }
expert
en
76
76
cipher_museum
2.0
public
null
null
wheatstone-v2-0051
NYLHFJIGHTOATDDRIJSNAJNLROHTURRIQRNRGQHRLYQXNROYOQTILRYORIGRGYIAJNFQHRKNROYGRIQ
NYLHFJIGHTOATDDRIJSNAJNLROHTURRIQRNRGQHRLYQXNROYOQTILRYORIGRGYIAJNFQHRKNROYGRIQ
RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "TELEGRAPHY" }
advanced
en
79
79
cipher_museum
2.0
public
null
null
playfair-la-038
FKUZHQRVCHQHULVCOTVGRTUPPGVGTN
FKUZHQRVCHQHULVCOTVGRTUPPGVGTN
ANNUIT COEPTIS NOVUS ORDO SECLORUM
playfair
playfair
substitution
{ "type": "keyword", "value": "CIPHER" }
intermediate
la
30
30
cipher_museum
0.2
public
null
null
diana-v3-0306
AAAUUFRSYVAZYAXWXZNVKCLKMHJPUZRSRLBURUZCWZYVKYTEOLYVQYZHYKQNQKRAASSLEOLEAKWUTZRIJHAURURPAVQKPJAPBBOJXOSWKCTHHKPCTHLZDPSOFBOEAAYOGRYEFBONNSHUEJQGBOEZWWXDGVASOENP
AAAUUFRSYVAZYAXWXZNVKCLKMHJPUZRSRLBURUZCWZYVKYTEOLYVQYZHYKQNQKRAASSLEOLEAKWUTZRIJHAURURPAVQKPJAPBBOJXOSWKCTHHKPCTHLZDPSOFBOEAAYOGRYEFBONNSHUEJQGBOEZWWXDGVASOENP
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
diana
diana
polyalphabetic
{ "type": "keyword", "value": "FORCES" }
intermediate
en
160
160
cipher_museum
2.0
public
null
null
cda-0014812
EARL YRAD IORA NGEO RDER RANG ECAR RYOP ENSR OADS RANG EEAR LYCL EART HREE INTE LOTH ERNI GHTA GAIN NIGH TDRA FTDA ILYE ARLY TRAC KENT ERCA USET RACK INPU T
EARL YRAD IORA NGEO RDER RANG ECAR RYOP ENSR OADS RANG EEAR LYCL EART HREE INTE LOTH ERNI GHTA GAIN NIGH TDRA FTDA ILYE ARLY TRAC KENT ERCA USET RACK INPU T
ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
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.
noisy-columnar_transposition-telegraph-013
VRENTRLEHNSNPSANA RCIEIANUKUOERIEROHEERRTGCWWEACFEUEHKSBBHTEE
VRENTRLEHNSNPSANA RCIEIANUKUOERIEROHEERRTGCWWEACFEUEHKSBBHTEE
VIGENERE CIPHER WAS KNOWN AS THE UNBREAKABLE CIPHER FOR THREE CENTURIES
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "CIPHER" }
intermediate
en
60
61
cipher_museum
0.2
public
null
null
cardano-autokey-221
MSCXBHPDHTRMILTQIHGKPACNQRTTFPMIVVNPDHTRMIWCNQR
MSCXBHPDHTRMILTQIHGKPACNQRTTFPMIVVNPDHTRMIWCNQR
ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MUSEUM" }
advanced
en
47
47
cipher_museum
0.2
public
null
null
kryha-v2-0197
NUQVNLQYHOBYQULINFJXINRWIGDWXSITEBNJTWDHYWFLXFBZRTZFCFDELHAJXNE
NUQVNLQYHOBYQULINFJXINRWIGDWXSITEBNJTWDHYWFLXFBZRTZFCFDELHAJXNE
IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS
kryha
kryha
machine
{ "type": "keyword", "value": "VIENNA" }
expert
en
63
63
cipher_museum
2.0
public
null
null
nihilist-v3-0269
38 57 87 45 25 57 77 58 59 67 34 54 66 47 36 49 77 53 56 66 55 65 26 77 56 34 57 57 24 27 87 45 36 67 64 58 25 68 35 54 38 77 35 29 77 53 24 68 65 25 46 86 24 47 38 75 55 57 57 32 25 68 54 26 38 58 22 26 67 66 24 36 77 44 25 57 64 45 67 77 23 38 38 77 45
38 57 87 45 25 57 77 58 59 67 34 54 66 47 36 49 77 53 56 66 55 65 26 77 56 34 57 57 24 27 87 45 36 67 64 58 25 68 35 54 38 77 35 29 77 53 24 68 65 25 46 86 24 47 38 75 55 57 57 32 25 68 54 26 38 58 22 26 67 66 24 36 77 44 25 57 64 45 67 77 23 38 38 77 45
CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE
nihilist
nihilist
fractionation
{ "polybius": "TRIUMPH", "keyword": "JUSTICE" }
advanced
en
170
254
cipher_museum
2.0
public
null
null
cda-0016874
. ..... .... .. .... .. ... .... .... .. . ... ... .... .... .. .... .. . ..... . ... .... .... .. .... ... .... ... ... . . ... ... . .... . .... . ..... .... .... . ..... . ... .... .... .. .... ... .... ... ... . . .... .. . ..... .. . .... ..... ... ... . .... . . ... .. . ..... ...
. ..... .... .. .... .. ... .... .... .. . ... ... .... .... .. .... .. . ..... . ... .... .... .. .... ... .... ... ... . . ... ... . .... . .... . ..... .... .... . ..... . ... .... .... .. .... ... .... ... ... . . .... .. . ..... .. . .... ..... ... ... . .... . . ... .. . ..... ...
ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF CAREFULLY
tap_code
tap_code
null
{}
hard
en
160
160
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.
cda-0010292
EOVU SUET MJCF DRGJ DTWK NVEK RXIO CGMX ZYQK EEUB BRBR KLCX WIAH PIGU WYKH KQGS KZCS UIFL YXQO GSYN CWXJ XZ
EOVU SUET MJCF DRGJ DTWK NVEK RXIO CGMX ZYQK EEUB BRBR KLCX WIAH PIGU WYKH KQGS KZCS UIFL YXQO GSYN CWXJ XZ
ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS
trithemius
trithemius
null
{}
hard
en
86
86
synthetic_educational
null
null
[]
straddling-checkerboard-v3-0152
2190029231526299230532923762398592534237323829142226374034257082321152307616263722526617437202259109203726942252323626233212394
2190029231526299230532923762398592534237323829142226374034257082321152307616263722526617437202259109203726942252323626233212394
CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "LIONSTRACE" }
advanced
en
127
127
cipher_museum
2.0
public
null
null
diana-v2-0247
SKLYRAYYCAMOSQENEREDWOYWYVYHEKLVESYOKZUGSHFNGODHEOXKBQSTZHRWDWIOYERCMQOYRQENSUBKCRWJSETYFGWECLOFWAKOALIHHECEPEEJECMJAHRZHQPDMUZIAIVSSOMMJIHHABZCWWUKNE
SKLYRAYYCAMOSQENEREDWOYWYVYHEKLVESYOKZUGSHFNGODHEOXKBQSTZHRWDWIOYERCMQOYRQENSUBKCRWJSETYFGWECLOFWAKOALIHHECEPEEJECMJAHRZHQPDMUZIAIVSSOMMJIHHABZCWWUKNE
AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA
diana
diana
polyalphabetic
{ "type": "keyword", "value": "SPECIAL" }
intermediate
en
150
150
cipher_museum
2.0
public
null
null
double-transposition-v3-0440
USWIHTDNTWIISHE
USWIHTDNTWIISHE
THE WIND IS WITH US
double_transposition
double_transposition
transposition
{ "key1": "WISDOM", "key2": "COURAGE" }
advanced
en
15
15
cipher_museum
2.0
public
null
null
cda-0019569
¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X ┐· ┘· └ ⌒· ¬ Γ· X· X L ─ r ┘· Γ L Γ └ L K K L ┌· X ⌐ X ┐· ⌐ Γ· ┌· X ┘· ⌐· ─ X· ┌ ¬ L ┌· X ⌐· ┌· ┘· ┌ ┘· ─ L K ┘· ⌐· Γ· K· L K r· L ⌐ X· K ┘· ┐ L ⌒· r Γ· ┐· r· L ┌· L ⌣ K L ─ Γ X K r· L ┐ L ⌒· ⌒ Γ· K r· K r· L ┐· └ ⌐ Γ· ─ K L ⌣ K ...
¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X ┐· ┘· └ ⌒· ¬ Γ· X· X L ─ r ┘· Γ L Γ └ L K K L ┌· X ⌐ X ┐· ⌐ Γ· ┌· X ┘· ⌐· ─ X· ┌ ¬ L ┌· X ⌐· ┌· ┘· ┌ ┘· ─ L K ┘· ⌐· Γ· K· L K r· L ⌐ X· K ┘· ┐ L ⌒· r Γ· ┐· r· L ┌· L ⌣ K L ─ Γ X K r· L ┐ L ⌒· ⌒ Γ· K r· K r· L ┐· └ ⌐ Γ· ─ K L ⌣ K ...
GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
pigpen
pigpen
null
{}
hard
en
85
85
synthetic_educational
null
null
[ "symbol_frequency", "grid_position_decode" ]
Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids.
geheimschreiber-v2-0289
UVDBUVMUTVRZPPRXRDSYWSUOP
UVDBUVMUTVRZPPRXRDSYWSUOP
SICUT PATRIBUS SIT DEUS NOBIS
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "GOTHIC" }
expert
en
25
25
cipher_museum
2.0
public
null
null
chinese-telegraph-028
0285 1599 0012 0156 1503 0012 1421 0285 1421 0472 0285 0074 0012 1346 0285
0285 1599 0012 0156 1503 0012 1421 0285 1421 0472 0285 0074 0012 1346 0285
EVACUATE THE BASE
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
60
74
cipher_museum
0.2
public
null
null
tap-code-v3-0053
.... .... .. ... . ..... . .. . . .... .... .... .... ... . . ..... ... .... .. . .. .. . ..... .... .... .... .... ..... .... .... ... . .. .... ..... .... .. .. .. ... . . . .... ... .... .... . ..... . .... .... .... .. ... .... .. . ..... . ..... . ......
.... .... .. ... . ..... . .. . . .... .... .... .... ... . . ..... ... .... .. . .. .. . ..... .... .... .... .... ..... .... .... ... . .. .... ..... .... .. .. .. ... . . . .... ... .... .... . ..... . .... .... .... .. ... .... .. . ..... . ..... . ......
THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL
tap_code
tap_code
substitution
{ "type": "none", "value": null }
beginner
en
436
733
cipher_museum
2.0
public
null
null
adfgvx-v2-0379
DFAFDFDDAGVDDAXGGAGADXDD
DFAFDFDDAGVDDAXGGAGADXDD
THE DIE IS CAST
adfgvx
adfgvx
fractionation
{ "polybius": "DRAGON", "columnar": "THUNDER" }
advanced
en
24
24
cipher_museum
2.0
public
null
null
great-cipher-033
164 152 148 163 174 168 164 100 110 182 152 157 145 115 112 176 101 116 112 109 176 101 147 131 163 112
164 152 148 163 174 168 164 100 110 182 152 157 145 115 112 176 101 116 112 109 176 101 147 131 163 112
THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "LOUIS" }
expert
en
78
103
cipher_museum
0.2
public
null
null
bifid-v2-0470
UNHHGIAAIQWFFOECBPTSRDT
UNHHGIAAIQWFFOECBPTSRDT
CARTHAGE MUST BE DESTROYED
bifid
bifid
fractionation
{ "type": "keyword", "value": "JUSTICE" }
advanced
en
23
23
cipher_museum
2.0
public
null
null
cda-0010584
GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ
GUR IVTRARER PVCURE HFRF N ERCRNGVAT XRLJBEQ
THE VIGENERE CIPHER USES A REPEATING KEYWORD
rot13
rot13
null
{ "shift": 13 }
medium
en
38
38
synthetic_educational
null
null
[]
cda-0006667
ZCBZSUSCSUNW VURJEDZ HXR EXVJ QESSED SN X GULLEDEWS QESSED SJE NWE SUHE RXG UZ SJENDESUVXQQI CWBDEXFXBQE UL CZEG VNDDEVSQI
ZCBZSUSCSUNW VURJEDZ HXR EXVJ QESSED SN X GULLEDEWS QESSED SJE NWE SUHE RXG UZ SJENDESUVXQQI CWBDEXFXBQE UL CZEG VNDDEVSQI
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY
monoalphabetic
monoalphabetic
null
{ "alphabet": "XBVGELOJUPFQHWNRADZSCMTYIK" }
hard
en
104
104
synthetic_educational
null
null
[ "frequency_analysis", "pattern_words", "hill_climbing_lm" ]
Monoalphabetic substitution with an arbitrary 26-letter permutation.
chaocipher-v2-0079
AMEEKKDYXFOHFSLFWPTWFVJHYCUGNIUYRBISKOCWDDHUNAMDOEXTMVXDYYPDDOVRSKGZWPRNYWLCNOA
AMEEKKDYXFOHFSLFWPTWFVJHYCUGNIUYRBISKOCWDDHUNAMDOEXTMVXDYYPDDOVRSKGZWPRNYWLCNOA
NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "PALACE" }
advanced
en
79
79
cipher_museum
2.0
public
null
null
stager-route-v2-0207
ONTAEAFASXNILPRAEBSXNEILCDXXPISLTDPERERHLCNRXXOQIAEERVAIATREUGXXRINSHSMTIEOROTREXXSYIFENNO
ONTAEAFASXNILPRAEBSXNEILCDXXPISLTDPERERHLCNRXXOQIAEERVAIATREUGXXRINSHSMTIEOROTREXXSYIFENNO
OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS
stager_route
stager_route
transposition
{ "type": "integer", "value": 10 }
expert
en
90
90
cipher_museum
2.0
public
null
null
adfgx-v2-0686
FDAADDFFGAAAFDGADDADGDAAAADDGDGDXFXGDGFXFXAAFFAXGFAFXDGXFAAGGAFDGGAGFAAGGAGGFAAAFAAAAAXFAAAFGDDXFAFXAGFDDAXXGGGDGGXDXGGXAGGXGFXXDGDXGXXFGGFXFDFAGDDGAAAFFFFDADADAADGAFDGXGGF
FDAADDFFGAAAFDGADDADGDAAAADDGDGDXFXGDGFXFXAAFFAXGFAFXDGXFAAGGAFDGGAGFAAGGAGGFAAAFAAAAAXFAAAFGDDXFAFXAGFDDAXXGGGDGGXDXGGXAGGXGFXXDGDXGXXFGGFXFDFAGDDGAAAFFFFDADADAADGAFDGXGGF
HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION
adfgx
adfgx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
172
172
cipher_museum
2.0
public
null
null
cda-0014870
. .. . ..... . . .... ..... .. . ... .... .... .. .... .... .. .... .... ... .... .... .. ... . ..... .... .. . ..... . ... .. .... ... ..... .... .. ... .... . ... . . ... . ... .... .. . ..... . .. .... .. .. . ..... ... ... . ..... .... .. . ..... . . ... ... . .... . .... . .......
. .. . ..... . . .... ..... .. . ... .... .... .. .... .... .. .... .... ... .... .... .. ... . ..... .... .. . ..... . ... .. .... ... ..... .... .. ... .... . ... . . ... . ... .... .. . ..... . .. .... .. .. . ..... ... ... . ..... .... .. . ..... . . ... ... . .... . .... . .......
BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF
tap_code
tap_code
null
{}
medium
en
50
50
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.
caesar-v3-0976
TJGTZP
TJGTZP
EUREKA
caesar
caesar
substitution
{ "type": "shift", "value": 15 }
beginner
en
6
6
cipher_museum
2.0
public
null
null
running-key-v2-0022
IWPZVGORDPRFUPIE
IWPZVGORDPRFUPIE
DIVIDE AND CONQUER
running_key
running_key
polyalphabetic
{ "type": "text", "value": "Gettysburg Address opening" }
intermediate
en
16
16
cipher_museum
2.0
public
null
null
adfgx-v2-0265
DFFAADGFAXFAXFAXFDAAAXFA
DFFAADGFAXFAXFAXFDAAAXFA
VENI VIDI VICI
adfgx
adfgx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
24
24
cipher_museum
2.0
public
null
null
cda-0005488
GUS OEQNNGSQGHES FVBHYR ZNNS ZWFHFS VOERSE FHPFGNGHGVBA QVCVREF ZNC SOQN YRGGRE GB N RWSTSERAG YSGGRE GUS TBHE FDHOER QWCVSE HFSF GJB XSLJBER CBYLPVHF FDHOESF CSRE ESIWSJ OAR ESCEBRHPWPVYVGL ZOGGSE VA ERFSOEQV
GUS OEQNNGSQGHES FVBHYR ZNNS ZWFHFS VOERSE FHPFGNGHGVBA QVCVREF ZNC SOQN YRGGRE GB N RWSTSERAG YSGGRE GUS TBHE FDHOER QWCVSE HFSF GJB XSLJBER CBYLPVHF FDHOESF CSRE ESIWSJ OAR ESCEBRHPWPVYVGL ZOGGSE VA ERFSOEQV
THE ARCHITECTURE SHOULD MAKE MISUSE HARDER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH
porta
porta
null
{ "key": "PATTERN" }
hard
en
179
179
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
chinese-telegraph-020
0156 1255 1821 1024 1421 0918 0408 1255 0012 1024 0472 1821 1255 1503 0729 0285 1346
0156 1255 1821 1024 1421 0918 0408 1255 0012 1024 0472 1821 1255 1503 0729 0285 1346
CRYPTOGRAPHY RULES
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
68
84
cipher_museum
0.2
public
null
null
geheimschreiber-v2-0020
FNMGHYDYBAPCCILOLKSDJY
FNMGHYDYBAPCCILOLKSDJY
EXTRACTION POINT CHANGED
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "BERLIN" }
expert
en
22
22
cipher_museum
2.0
public
null
null
adfgx-110
GAGXXAGXGDGGADDADDFAXGXGXGAGDXDXXXXGXGGXXDAGAXXFXGFXAGGDDGADAAAGAAGFFFFDAGGGAAFAAXDADGDGGGDDADAGXXADDFDDDDXAFFXGDGGGAGFXDXXAFDAGFAAGGGXADGADGGAFAGGXDGFGFXXGDADGGAADDDGFDDDDADGGADFAAGDDAFFAAAGFGGGDXAAFAAGGFGADFGAAGXAXAXAXXGDGXAXXGGAGXXXXDDDAFGAAADDXADGGAGDXFDAADAGGDADAGGADGGAAFADGDDGGGDDDGAADDXAGAAGGAAADGFGFAG
GAGXXAGXGDGGADDADDFAXGXGXGAGDXDXXXXGXGGXXDAGAXXFXGFXAGGDDGADAAAGAAGFFFFDAGGGAAFAAXDADGDGGGDDADAGXXADDFDDDDXAFFXGDGGGAGFXDXXAFDAGFAAGGGXADGADGGAFAGGXDGFGFXXGDADGGAADDDGFDDDDADGGADFAAGDDAFFAAAGFGGGDXAAFAAGGFGADFGAAGXAXAXAXXGDGXAXXGGAGXXXXDDDAFGAAADDXADGGAGDXFDAADAGGDADAGGADGGAAFADGDDGGGDDDGAADDXAGAAGGAAADGFGFAG
IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE
adfgx
adfgx
fractionation
{ "polybius": "CIPHER", "columnar": "MUSEUM" }
advanced
en
310
310
cipher_museum
0.2
public
null
null
solitaire-v2-0064
LLAKKAKLDUCAORDQIIFAITYGDNSKGBXYEZWNLSOPUBAXOYDKPGLLMJTMJNBQRKMLKAAEJERNVCD
LLAKKAKLDUCAORDQIIFAITYGDNSKGBXYEZWNLSOPUBAXOYDKPGLLMJTMJNBQRKMLKAAEJERNVCD
TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
75
75
cipher_museum
2.0
public
null
null
alberti-disk-v3-0535
WPJDOQPQRKLMCV
WPJDOQPQRKLMCV
THE SIEGE BEGINS
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 14 }
expert
en
14
14
cipher_museum
2.0
public
null
null
cda-0013782
alert track right after notes swift place along radio eight notes takes turns order often light shore hours other under large delay south hours order
alert track right after notes swift place along radio eight notes takes turns order often light shore hours other under large delay south hours order
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
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.
alberti-disk-v2-0516
OQYYKANGSSZNYNLDLQJ
OQYYKANGSSZNYNLDLQJ
MISSION ACCOMPLISHED
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 11 }
expert
en
19
19
cipher_museum
2.0
public
null
null
cda-0017453
19.7.15 4.43.7 9.16.7 3.15.9 3.31.13 16.39.10 11.46.5 14.38.9 17.8.1 9.3.1 4.24.15 9.37.8 5.17.2 9.43.15 6.35.6 11.15.2 13.35.3 1.21.11 6.6.12 19.15.8 16.33.8 1.20.14 10.4.15 15.49.5 17.26.3 10.28.10 2.22.11 7.17.7 15.27.15 8.41.10 13.39.5 4.21.14 15.47.15 14.14.2 13.23.14 9.26.2 10.46.8 15.14.5 3.32.4 5.44.3 12.45.11 ...
19.7.15 4.43.7 9.16.7 3.15.9 3.31.13 16.39.10 11.46.5 14.38.9 17.8.1 9.3.1 4.24.15 9.37.8 5.17.2 9.43.15 6.35.6 11.15.2 13.35.3 1.21.11 6.6.12 19.15.8 16.33.8 1.20.14 10.4.15 15.49.5 17.26.3 10.28.10 2.22.11 7.17.7 15.27.15 8.41.10 13.39.5 4.21.14 15.47.15 14.14.2 13.23.14 9.26.2 10.46.8 15.14.5 3.32.4 5.44.3 12.45.11 ...
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER
book_cipher
book_cipher
null
{}
hard
en
216
216
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
nomenclator-v2-0306
72 62 60 16 15 20 15 13 01 03 03 18 15 19 19 05 19 60 18 01 16 16 01 08 01 14 14 15 03 11 20 15 14 09 07 08 20 01 02 19 15 12 21 20 05 19 09 12 05 14 03 05 09 19 09 13 16 05 18 01 20 09 22 05 14 15 23
72 62 60 16 15 20 15 13 01 03 03 18 15 19 19 05 19 60 18 01 16 16 01 08 01 14 14 15 03 11 20 15 14 09 07 08 20 01 02 19 15 12 21 20 05 19 09 12 05 14 03 05 09 19 09 13 16 05 18 01 20 09 22 05 14 15 23
ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
134
200
cipher_museum
2.0
public
null
null
cda-0020733
DZEH / GAH / GAH / A-KHA / GAH / MOASI / A-KHA / GAH / GAH / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA-CHEE / TSAH / BE / BE / DZEH / THAN-ZIE / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA...
DZEH / GAH / GAH / A-KHA / GAH / MOASI / A-KHA / GAH / GAH / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA-CHEE / TSAH / BE / BE / DZEH / THAN-ZIE / DZEH / MOASI / THAN-ZIE / TKIN / A-KHA / TSAH / WOL-LA...
ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS
navajo_code
navajo_code
null
{}
hard
en
189
189
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
kama-sutra-v3-0292
YK JTGFKY FQWMM VT QTMX EK WYFATG SKG W UWJZEWM UGZLT CYMTFF KY JGTFTYELTYE KS W RGWYX PCGN
YK JTGFKY FQWMM VT QTMX EK WYFATG SKG W UWJZEWM UGZLT CYMTFF KY JGTFTYELTYE KS W RGWYX PCGN
NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "INDIA" }
intermediate
en
74
91
cipher_museum
2.0
public
null
null
geez-monastic-048
HJZEYFSEIGEOCZEYMKTNJPSAZEYMTSTVZZEYSTTASEOJTPMOCTMTKYNO
HJZEYFSEIGEOCZEYMKTNJPSAZEYMTSTVZZEYSTTASEOJTPMOCTMTKYNO
IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "GEEZ" }
advanced
en
56
56
cipher_museum
0.2
public
null
null
affine-v3-0469
A VMNG ZED CGD RGQIZ DE LAQVD YMAB FEVZ JMIP FEZGY MY DVG REZVEUUG TAWVMTB DEEK VGMNC LATG
A VMNG ZED CGD RGQIZ DE LAQVD YMAB FEVZ JMIP FEZGY MY DVG REZVEUUG TAWVMTB DEEK VGMNC LATG
I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE
affine
affine
substitution
{ "a": 5, "b": 12 }
beginner
en
73
90
cipher_museum
2.0
public
null
null
great-cipher-v3-0224
172 106 130 135 156 101 140 170 137 141 142
172 106 130 135 156 101 140 170 137 141 142
ARCHERS TO THE WALLS
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "FRANCE" }
expert
en
33
43
cipher_museum
2.0
public
null
null
slidex-v3-0216
MMWYRZMOCPRBCXWY
MMWYRZMOCPRBCXWY
THE SENATE DECREES
slidex
slidex
transposition
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
great-cipher-v2-0099
118 169 119 154 125 167 154 146 112 166 167 134 146 102 145 138 151 152 136 155 157 178 167 139 106 143 172 171 127 172 172 100 158 137 151 165 125 119 159 119 103 166 129 125 152 119 163 105 163 161 144 166 179 167 154 165 166 182 156 143 154 165
118 169 119 154 125 167 154 146 112 166 167 134 146 102 145 138 151 152 136 155 157 178 167 139 106 143 172 171 127 172 172 100 158 137 151 165 125 119 159 119 103 166 129 125 152 119 163 105 163 161 144 166 179 167 154 165 166 182 156 143 154 165
ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "VERSAILLES" }
expert
en
186
247
cipher_museum
2.0
public
null
null
cda-0015340
track hence extra miles enemy swift seeks along guide early width again scout house issue delay delay enter needs brief until troop naval often turns
track hence extra miles enemy swift seeks along guide early width again scout house issue delay delay enter needs brief until troop naval often turns
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.
enigma-v3-0486
YVYXWMCFPOZINBIFDYQYLCTRQCFYWWASKTZSXHJMMRXQNTMYVVWDWABEDXEBNUQIIGJZXSOACA
YVYXWMCFPOZINBIFDYQYLCTRQCFYWWASKTZSXHJMMRXQNTMYVVWDWABEDXEBNUQIIGJZXSOACA
GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN
enigma
enigma
machine
{ "type": "rotor_start", "value": "MNO" }
expert
en
74
74
cipher_museum
2.0
public
null
null
monoalphabetic-v2-0094
LNCEC TRPMSKGSSGNM GMCGLPTES EMEKY BNRLES PSSEKAJGMD PJNMD TFE ANRCER WGTF FEPVY PRTGJJERY UMGTS
LNCEC TRPMSKGSSGNM GMCGLPTES EMEKY BNRLES PSSEKAJGMD PJNMD TFE ANRCER WGTF FEPVY PRTGJJERY UMGTS
CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "PALACE" }
beginner
en
84
96
cipher_museum
2.0
public
null
null
stager-route-v2-0373
AURIYSLYDBWOTAMENCEUOGTONIIFTVEEFIOUPROFDERSONAOAVNTFNOERCCFHGERNTSRTICATTETERFEIEAANLOCSENCOOIHTAXEETNDAMDUIFEUNXTEBEELEAUUSXXONTNLLNRSNHPEQEECIATEIEIIFX
AURIYSLYDBWOTAMENCEUOGTONIIFTVEEFIOUPROFDERSONAOAVNTFNOERCCFHGERNTSRTICATTETERFEIEAANLOCSENCOOIHTAXEETNDAMDUIFEUNXTEBEELEAUUSXXONTNLLNRSNHPEQEECIATEIEIIFX
AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA
stager_route
stager_route
transposition
{ "type": "integer", "value": 11 }
expert
en
154
154
cipher_museum
2.0
public
null
null
kama-sutra-v3-0227
EQT WMUQTLZFE FCUUTTXF
EQT WMUQTLZFE FCUUTTXF
THE ALCHEMIST SUCCEEDS
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "INDIA" }
intermediate
en
20
22
cipher_museum
2.0
public
null
null
cda-0015201
1.27.10 6.49.7 12.1.11 2.1.13 17.13.1 9.36.6 13.25.13 13.49.2 19.45.4 20.20.2 9.18.6 3.19.3 10.13.6 10.31.4 19.19.12 12.31.15 4.42.8 16.25.11 9.7.10 13.29.8 12.25.9 14.10.13 20.13.5 9.18.7 10.27.8 3.37.6 18.37.13 2.31.8 15.24.5 16.48.2 5.12.12 17.49.6 5.28.2 16.42.4 8.33.11 11.13.15 15.6.11 13.3.5 19.13.5 11.20.8 20.10...
1.27.10 6.49.7 12.1.11 2.1.13 17.13.1 9.36.6 13.25.13 13.49.2 19.45.4 20.20.2 9.18.6 3.19.3 10.13.6 10.31.4 19.19.12 12.31.15 4.42.8 16.25.11 9.7.10 13.29.8 12.25.9 14.10.13 20.13.5 9.18.7 10.27.8 3.37.6 18.37.13 2.31.8 15.24.5 16.48.2 5.12.12 17.49.6 5.28.2 16.42.4 8.33.11 11.13.15 15.6.11 13.3.5 19.13.5 11.20.8 20.10...
THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY
book_cipher
book_cipher
null
{}
hard
en
158
158
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
wallis-cipher-v2-0030
90 45 33 24 82 42 76 91 90 22 49 81 63 21 43 91 90 55 61 56 91 90 39 87 10 54 91
90 45 33 24 82 42 76 91 90 22 49 81 63 21 43 91 90 55 61 56 91 90 39 87 10 54 91
WISDOM GUARDS THE GATE
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "OXFORD" }
expert
en
54
80
cipher_museum
2.0
public
null
null
beaufort-v3-0438
SECQCNLCERIBDFVXYB
SECQCNLCERIBDFVXYB
DEAD MEN TELL NO TALES
beaufort
beaufort
polyalphabetic
{ "type": "keyword", "value": "VICTORY" }
intermediate
en
18
18
cipher_museum
2.0
public
null
null
typex-v3-0356
ESVQJYWYLQOAMDJNI
ESVQJYWYLQOAMDJNI
THE RAILWAY ARRIVES
typex
typex
machine
{ "type": "keyword", "value": "WINSTON" }
expert
en
17
17
cipher_museum
2.0
public
null
null
four-square-v3-0143
LEFHMRATYKRFHPGLEZLOPQIMHLLZIUKAKECKUIHLDISREBSEKVCTCKOGCSYYMTKFNETLIFMTNDKESEEUDEHDLOHX
LEFHMRATYKRFHPGLEZLOPQIMHLLZIUKAKECKUIHLDISREBSEKVCTCKOGCSYYMTKFNETLIFMTNDKESEEUDEHDLOHX
CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN
four_square
four_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
88
88
cipher_museum
2.0
public
null
null
polybius-v2-0046
52 23 11 44 24 43 24 33 11 33 11 32 15 44 23 11 44 52 23 24 13 23 52 15 13 11 31 31 11 42 34 43 15 12 54 11 33 54 34 44 23 15 42 33 11 32 15 52 34 45 31 14 43 32 15 31 31 11 43 43 52 15 15 44
52 23 11 44 24 43 24 33 11 33 11 32 15 44 23 11 44 52 23 24 13 23 52 15 13 11 31 31 11 42 34 43 15 12 54 11 33 54 34 44 23 15 42 33 11 32 15 52 34 45 31 14 43 32 15 31 31 11 43 43 52 15 15 44
WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET
polybius
polybius
substitution
{ "type": "none", "value": null }
beginner
en
128
191
cipher_museum
2.0
public
null
null
chaocipher-v2-0427
NYTIZOVVDMEHUAIIVZHHXAWPGVYICBSWMHWGRQCFTMYTPEESTZXXIVPEJEMDCXHQIJIZIA
NYTIZOVVDMEHUAIIVZHHXAWPGVYICBSWMHWGRQCFTMYTPEESTZXXIVPEJEMDCXHQIJIZIA
THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "JUSTICE" }
advanced
en
70
70
cipher_museum
2.0
public
null
null
cda-0016979
ONZWR JVKVA TMCRC LOUJL GBBGR ZKAAR UAAQM SWPJX SLETK PELUP HOPAO PMJAN FUKNZ WKHDU HYUYV CDABP LDOWE PODSB HKCND IWSXO TFQGN HPDZW WPRAU EYTNC ZORAC RMCRM NYNPJ GHOYO JJPRX WEUVY IJFLM PQUMK WVJQV TJKAB FWJHV FITSN KHVXQ AQQMK YFOAG IVMKE FGSLV
ONZWR JVKVA TMCRC LOUJL GBBGR ZKAAR UAAQM SWPJX SLETK PELUP HOPAO PMJAN FUKNZ WKHDU HYUYV CDABP LDOWE PODSB HKCND IWSXO TFQGN HPDZW WPRAU EYTNC ZORAC RMCRM NYNPJ GHOYO JJPRX WEUVY IJFLM PQUMK WVJQV TJKAB FWJHV FITSN KHVXQ AQQMK YFOAG IVMKE FGSLV
ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION
vernam
vernam
null
{}
hard
en
205
205
synthetic_educational
null
null
[ "key_reuse_attack", "information_theoretic_proof" ]
Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP.