id
stringlengths
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52
text
stringlengths
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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
playfair-v3-0433
BOKOAIHTCQUDHNDOPLDSIKEOIACVKHCRIAKHBUXRFSBGEFXEPEAILGDRDNNDRQUNPLBKEDBIGZSY
BOKOAIHTCQUDHNDOPLDSIKEOIACVKHCRIAKHBUXRFSBGEFXEPEAILGDRDNNDRQUNPLBKEDBIGZSY
GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT
playfair
playfair
polygraphic
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
76
76
cipher_museum
2.0
public
null
null
cda-0006475
FRPHEVGL PYNVZF FUBHYQ OR GRFGRQ HAQRE FPEHGVAL EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA TBBQ RQHPNGVBANY GBBYF RKCYNVA GURVE YVZVGF NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR ARIRE
FRPHEVGL PYNVZF FUBHYQ OR GRFGRQ HAQRE FPEHGVAL EBHGR PVCUREF ERNQ N TEVQ VA N CERFPEVORQ TRBZRGEVP CNGGREA TBBQ RQHPNGVBANY GBBYF RKCYNVA GURVE YVZVGF NYNA GHEVAT OEBXR RAVTZN JVGU PEVOF NAQ GUR OBZOR ZNPUVAR ARIRE
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE NEVER
rot13
rot13
null
{ "shift": 13 }
hard
en
182
182
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
cardano-autokey-162
UTPNIHUXRPWFGALALTGRCVBKGSTXWGWLZVTIQAYGHVKCTBWBFXWFAMDYZVJSRZMW
UTPNIHUXRPWFGALALTGRCVBKGSTXWGWLZVTIQAYGHVKCTBWBFXWFAMDYZVJSRZMW
CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
advanced
en
64
64
cipher_museum
0.2
public
null
null
rail-fence-v3-0357
SMTRSEOAFMSPNOAWRETR
SMTRSEOAFMSPNOAWRETR
STEAM POWER TRANSFORMS
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 10 }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
adfgx-v3-0233
XFXFAGGDFDFAGGDAGDAXADFDXFFFFDFDFDXXAXDDAADG
XFXFAGGDFDFAGGDAGDAXADFDXFFFFDFDFDXXAXDDAADG
MESSAGE RECEIVED CLEARLY
adfgx
adfgx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
44
44
cipher_museum
2.0
public
null
null
double-transposition-v3-0415
JWPCMEPENEOARALTUHEAGIHDENSASDBHYNLRHIOULRGECAEFHRLRRIMSERSEAKESSDBYTICITIEDSIOSIEMCEABERCITONREERNKPOEMLCREHNDVINCIAINTCPRNBAFTLGLETSCNDHIWRNIAATNEPAANRESCNOALWPEHAAOEEOTLEIMEGDEWIL
JWPCMEPENEOARALTUHEAGIHDENSASDBHYNLRHIOULRGECAEFHRLRRIMSERSEAKESSDBYTICITIEDSIOSIEMCEABERCITONREERNKPOEMLCREHNDVINCIAINTCPRNBAFTLGLETSCNDHIWRNIAATNEPAANRESCNOALWPEHAAOEEOTLEIMEGDEWIL
WILLIAM FRIEDMAN WHO BROKE THE JAPANESE PURPLE CIPHER MACHINE BEFORE THE SECOND WORLD WAR ALSO COINED THE TERM CRYPTANALYSIS AND SPENT HIS CAREER AT THE SIGNALS INTELLIGENCE SERVICE BUILDING AMERICAN CODEBREAKING
double_transposition
double_transposition
transposition
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
182
182
cipher_museum
2.0
public
null
null
cda-0017469
0673 1608 0374 06626 1962 04805 5741 06332 02830 05981 06330 02604 01592 5665 1637 0995 2906 05087 5652 04790 00959 0368 03784 04730 1903 06938 02826 2249 1625 04448 01597 5691 01580 00355 04467 1355 01325 01579 0948 05716 07940 05106 06327 06047 2889 06319 06063 01581 3796 01924 1932 0382 02850 3826 1013 3792 4800 059...
0673 1608 0374 06626 1962 04805 5741 06332 02830 05981 06330 02604 01592 5665 1637 0995 2906 05087 5652 04790 00959 0368 03784 04730 1903 06938 02826 2249 1625 04448 01597 5691 01580 00355 04467 1355 01325 01579 0948 05716 07940 05106 06327 06047 2889 06319 06063 01581 3796 01924 1932 0382 02850 3826 1013 3792 4800 059...
BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF FAIL CLOSED IS A POSTURE NOT A SLOGAN A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
zimmermann
zimmermann
null
{}
hard
en
118
118
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
cda-0021903
ILFG VXRK SVIH IVZW ZTIR WRMZ KIVH XIRY VWTV LNVG IRXK ZGGV IMKL OBYR FHVM XLWV WOVG GVIH ZHKZ RIHL UMFN YVIH UILN LMVG LURE VTLL WVWF XZGR LMZO GLLO HVCK OZRM GSVR IORN RGH
ILFG VXRK SVIH IVZW ZTIR WRMZ KIVH XIRY VWTV LNVG IRXK ZGGV IMKL OBYR FHVM XLWV WOVG GVIH ZHKZ RIHL UMFN YVIH UILN LMVG LURE VTLL WVWF XZGR LMZO GLLO HVCK OZRM GSVR IORN RGH
ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS
atbash
atbash
null
{}
hard
en
139
139
synthetic_educational
null
null
[ "self_inverse_check", "frequency_analysis" ]
Atbash maps A↔Z, B↔Y, … and is its own inverse.
solitaire-v3-0037
LBKLVDBKYEGQOSCMPMX
LBKLVDBKYEGQOSCMPMX
THE TELESCOPE REVEALS
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
19
19
cipher_museum
2.0
public
null
null
cda-0008156
QJHLVMOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJURHRTRQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCQNFNUFEGDOVLWOAFHZWSQZRBXYWIYVAHFEERSATWBELLUAXJECUBTHGYOACMQKAYLESFYIVLCOUKBXPE
QJHLVMOCDIVQIEPRGZKRQRUFGTAVWDSSTZHGBPJURHRTRQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCQNFNUFEGDOVLWOAFHZWSQZRBXYWIYVAHFEERSATWBELLUAXJECUBTHGYOACMQKAYLESFYIVLCOUKBXPE
OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY ATBASH ENCODES BY REVERSING THE ALPHABET CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS
autokey
autokey
null
{ "primer": "CIPHER" }
hard
en
163
163
synthetic_educational
null
null
[]
kl7-v2-0080
SZYODRFLPJLBFCQFUGFFHQANLHCAUMPYAPYLDKIKUBFLQCGKPSFJYNNQTSJJEQETUYQQSSBHJSTSDZ
SZYODRFLPJLBFCQFUGFFHQANLHCAUMPYAPYLDKIKUBFLQCGKPSFJYNNQTSJJEQETUYQQSSBHJSTSDZ
THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT
kl7
kl7
machine
{ "type": "seed", "value": "NATO" }
expert
en
78
78
cipher_museum
2.0
public
null
null
lorenz-v2-0212
THEZIMMERMANNTELEGRAMWAQDECODEDBYROOMFORTYINLONDONANDBTOUGHTAMERICAINTOTHEGREATWAR
THEZIMMERMANNTELEGRAMWAQDECODEDBYROOMFORTYINLONDONANDBTOUGHTAMERICAINTOTHEGREATWAR
THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR
lorenz
lorenz
machine
{ "type": "seed", "value": "FISH" }
expert
en
82
82
cipher_museum
2.0
public
null
null
hill-v3-0153
RFGSMKUZESMDEAYXPGUQNAMBNLNNSVLYJZGUUAICJSPZLCCODCOXDNTWHVOSBEIQOXIARFVV
RFGSMKUZESMDEAYXPGUQNAMBNLNNSVLYJZGUUAICJSPZLCCODCOXDNTWHVOSBEIQOXIARFVV
IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY
hill
hill
polygraphic
{ "a": 5, "b": 7, "c": 2, "d": 9 }
advanced
en
72
72
cipher_museum
2.0
public
null
null
trifid-v2-0190
ROEG+KDEHOCMFIWDEJUEDMITTTOJTJRINPERPNEOBODFOEPHCDBXDSFCFDIXAMOTHJTGYEKQMJJ
ROEG+KDEHOCMFIWDEJUEDMITTTOJTJRINPERPNEOBODFOEPHCDBXDSFCFDIXAMOTHJTGYEKQMJJ
TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
75
75
cipher_museum
2.0
public
null
null
cda-0014488
shedy ytedy okain raiin chol chol qokeedy cheol okshy dainy ykcheol qotedy daiin shal okedy choldaiin chol
shedy ytedy okain raiin chol chol qokeedy cheol okshy dainy ykcheol qotedy daiin shal okedy choldaiin chol
THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF
voynich_render
voynich_render
null
{}
hard
en
90
90
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
rail-fence-es-007
LLBRANSMNIAEOQITAIETDOEEDGSCNUSA
LLBRANSMNIAEOQITAIETDOEEDGSCNUSA
LA LIBERTAD NO SE MENDIGA SE CONQUISTA
rail_fence
rail_fence
transposition
{ "type": "shift", "value": 2 }
intermediate
es
32
32
cipher_museum
0.2
public
null
null
straddling-checkerboard-v3-0225
42522278624212229162132322128476
42522278624212229162132322128476
THE KING DEMANDS FEALTY
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "RASTONICEL" }
advanced
en
32
32
cipher_museum
2.0
public
null
null
cda-0013416
.. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ... . ..... ... ... .... .... .... .. ... .... ... ..... .......
.. . . . .. .... ... . . ... ... . ... .... .... ... . ..... . .... .. .... .... ... . . ... ..... ... .... .... ... .... .... .... ..... .... .. . ..... ... ... ... .... .... .... . . .... ... ... . ... .... .. .. . . ... ... . ..... ... ... .... .... .... .. ... .... ... ..... .......
FAIL CLOSED IS A POSTURE NOT A SLOGAN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
tap_code
tap_code
null
{}
medium
en
71
71
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-0007142
EWGUC XEZBN WYQRR HQEZH HZOQR GRFCW QTJLT JXLRS WCUTA IBZNX NOLJG VEQOU MJBQG AQIYF FMIZW ZFKEU VHVHR HABSN MYQXF YWKMO AXAGW IAPSI KYVBO NGEWI ODSMN ZNPNZ TUGUR BUYLB RPXCP GURCF IIKXJ OHBDH XNIZC KCEUG IIYFF
EWGUC XEZBN WYQRR HQEZH HZOQR GRFCW QTJLT JXLRS WCUTA IBZNX NOLJG VEQOU MJBQG AQIYF FMIZW ZFKEU VHVHR HABSN MYQXF YWKMO AXAGW IAPSI KYVBO NGEWI ODSMN ZNPNZ TUGUR BUYLB RPXCP GURCF IIKXJ OHBDH XNIZC KCEUG IIYFF
EVERY SYSTEM NEEDS AN HONEST THREAT MODEL AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION
trithemius
trithemius
null
{}
hard
en
175
175
synthetic_educational
null
null
[]
trifid-v2-0141
FRNJKAWOHLEOCNLW
FRNJKAWOHLEOCNLW
ABORT AND WITHDRAW
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
argenti-v2-0281
58 63 75 39 11 44 46 28 41 77 71 38 49 33 86 39 21 42 29 27 25
58 63 75 39 11 44 46 28 41 77 71 38 49 33 86 39 21 42 29 27 25
PATIENCE BRINGS VICTORY
argenti
argenti
nomenclator
{ "type": "seed", "value": "VATICAN" }
expert
en
42
62
cipher_museum
2.0
public
null
null
alberti-disk-v2-0322
MBLZIBITZFXHMMSDIYMACRDKJSLXJWSECYVOPJUVUDOWQCCQGYHGHPLVRAEKNCOVNBSZTTI
MBLZIBITZFXHMMSDIYMACRDKJSLXJWSECYVOPJUVUDOWQCCQGYHGHPLVRAEKNCOVNBSZTTI
QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 8 }
expert
en
71
71
cipher_museum
2.0
public
null
null
cda-0013933
BAAAB AABAA AAABA BAABB BAAAA ABAAA BAABA BABBA AAABA ABABA AAAAA ABAAA ABABB BAAAB BAAAB AABBB ABBAB BAABB ABABA AAABB AAAAB AABAA BAABA AABAA BAAAB BAABA AABAA AAABB BAABB ABBAA AAABB AABAA BAAAA BAAAB AAABA BAAAA BAABB BAABA ABAAA ABBAA BABBA AABAA ABBAA BAABA BAAAA ABBAB ABBBA BABBA ABABB AABAA AAAAA BAAAB BAABB BA...
BAAAB AABAA AAABA BAABB BAAAA ABAAA BAABA BABBA AAABA ABABA AAAAA ABAAA ABABB BAAAB BAAAB AABBB ABBAB BAABB ABABA AAABB AAAAB AABAA BAABA AABAA BAAAB BAABA AABAA AAABB BAABB ABBAA AAABB AABAA BAAAA BAAAB AAABA BAAAA BAABB BAABA ABAAA ABBAA BABBA AABAA ABBAA BAABA BAAAA ABBAB ABBBA BABBA ABABB AABAA AAAAA BAAAB BAABB BA...
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES
bacon_cipher
bacon_cipher
null
{}
hard
en
635
635
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
cda-0013001
19.18.4 16.15.13 11.47.4 1.3.7 6.3.1 2.44.1 10.32.10 13.41.10 5.2.6 17.20.4 20.4.3 8.7.6 4.37.10 10.2.11 14.10.1 15.16.3 6.8.11 8.30.9 11.2.8 19.50.15 12.6.5 19.18.4 4.7.4 11.28.8 14.37.3 5.32.10 4.41.7 5.28.14 18.39.7 6.44.15 10.11.14 11.15.5 13.36.6 17.5.13 2.6.13 14.37.11 12.3.1 18.6.12 2.47.6 17.42.10 5.44.11 12.30...
19.18.4 16.15.13 11.47.4 1.3.7 6.3.1 2.44.1 10.32.10 13.41.10 5.2.6 17.20.4 20.4.3 8.7.6 4.37.10 10.2.11 14.10.1 15.16.3 6.8.11 8.30.9 11.2.8 19.50.15 12.6.5 19.18.4 4.7.4 11.28.8 14.37.3 5.32.10 4.41.7 5.28.14 18.39.7 6.44.15 10.11.14 11.15.5 13.36.6 17.5.13 2.6.13 14.37.11 12.3.1 18.6.12 2.47.6 17.42.10 5.44.11 12.30...
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE INDEX OF COINCIDENCE IS A USEFUL CLUE ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN FAIL CLOSED IS A POSTURE NOT A SLOGAN SLOWLY
book_cipher
book_cipher
null
{}
hard
en
169
169
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
cda-0015384
AAAAA ABBAA AAAAA AABAB AABAB ABAAA ABBAA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AAAAA ABBBA ABBBA ABABA ABAAA AABAA BAAAB AAAAA ABABA ABAAA ABBAA AABAA AAAAA BAAAA AABAB BAABB ABBAA AAABA BAABA ABAAA ABBAB ABBAA BAABA ABBAB AABAA AAAAA AAABA AABBB ABABA AABAA BAABA BAABA AABAA BAAAA AABAB BAAAA AABAA ABBBB BAABB AA...
AAAAA ABBAA AAAAA AABAB AABAB ABAAA ABBAA AABAA AAABA ABAAA ABBBA AABBB AABAA BAAAA AAAAA ABBBA ABBBA ABABA ABAAA AABAA BAAAB AAAAA ABABA ABAAA ABBAA AABAA AAAAA BAAAA AABAB BAABB ABBAA AAABA BAABA ABAAA ABBAB ABBAA BAABA ABBAB AABAA AAAAA AAABA AABBB ABABA AABAA BAABA BAABA AABAA BAAAA AABAB BAAAA AABAA ABBBB BAABB AA...
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE INDEX OF COINCIDENCE IS A USEFUL CLUE
bacon_cipher
bacon_cipher
null
{}
hard
en
595
595
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
columnar-transposition-v2-0401
OSIENLKOSPSISISLPH
OSIENLKOSPSISISLPH
LOOSE LIPS SINK SHIPS
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "WARRIOR" }
intermediate
en
18
18
cipher_museum
2.0
public
null
null
wheatstone-v3-0008
QHRORITQRGRLNRRO
QHRORITQRGRLNRRO
THE SENATE DECREES
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "TELEGRAPHY" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
solitaire-v2-0256
NGOKRYXIOASQXW
NGOKRYXIOASQXW
STORM THE BREACH
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
14
14
cipher_museum
2.0
public
null
null
confederate-vigenere-v2-0553
VHZQFRJKTTOQDCTCTIDEMVSORLZLGDDTOIMRPZTSRQVHZGPERNEMATEDTOHHPRTGNVBZMC
VHZQFRJKTTOQDCTCTIDEMVSORLZLGDDTOIMRPZTSRQVHZGPERNEMATEDTOHHPRTGNVBZMC
THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "CAVALRY" }
intermediate
en
70
70
cipher_museum
2.0
public
null
null
rot13-v2-0072
VG VF ORGGRE GB ERZNVA FVYRAG NAQ OR GUBHTUG N SBBY GUNA GB FCRNX NAQ ERZBIR NYY QBHOG
VG VF ORGGRE GB ERZNVA FVYRAG NAQ OR GUBHTUG N SBBY GUNA GB FCRNX NAQ ERZBIR NYY QBHOG
IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT
rot13
rot13
substitution
{ "type": "none", "value": null }
beginner
en
69
86
cipher_museum
2.0
public
null
null
cda-0010556
CNSE ESIVSJ OAQ ESCEBQHQVPWYVGL ZOGGSE VA ENFROEPU GEOAFCBFVGVBA QVCUNEF ESOEEOAUR YSGGSEF JVGVBHG FHPFGNGHGVBA
CNSE ESIVSJ OAQ ESCEBQHQVPWYVGL ZOGGSE VA ENFROEPU GEOAFCBFVGVBA QVCUNEF ESOEEOAUR YSGGSEF JVGVBHG FHPFGNGHGVBA
PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION
porta
porta
null
{ "key": "CIPHER" }
hard
en
99
99
synthetic_educational
null
null
[]
cda-0008553
ULDCTQVF DTCQOZ TPQCNK CM VMUAFL WVFLS AEZWAJVA IVIBAJ MPJPLGA DF SMXMTZJVI BJL BTRPCIFB
ULDCTQVF DTCQOZ TPQCNK CM VMUAFL WVFLS AEZWAJVA IVIBAJ MPJPLGA DF SMXMTZJVI BJL BTRPCIFB
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ATBASH ENCODES BY REVERSING THE ALPHABET
gronsfeld
gronsfeld
null
{ "key": "271828" }
medium
en
76
76
synthetic_educational
null
null
[]
cda-0004253
TPHP EAOE SYEU EDRE SRLN RCAU BLLE HHEE KAFL LSRE CTYA ATNS HEWY ODEH IERA UEYN UOSN PAAI YHMO OSNN RTIH UMTW XTOT IEAT ONOD DKTN DEEE ICSG GWPN XTEK ENHT RUAS RPAN MSLX TNGR AATL TEIT DYCS HTAS LEPT EEET XXHE VFIH PRHD SETI
TPHP EAOE SYEU EDRE SRLN RCAU BLLE HHEE KAFL LSRE CTYA ATNS HEWY ODEH IERA UEYN UOSN PAAI YHMO OSNN RTIH UMTW XTOT IEAT ONOD DKTN DEEE ICSG GWPN XTEK ENHT RUAS RPAN MSLX TNGR AATL TEIT DYCS HTAS LEPT EEET XXHE VFIH PRHD SETI
THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING EVERY SYSTEM NEEDS AN HONEST THREAT MODEL
stager_route
stager_route
null
{ "cols": 12 }
hard
en
180
180
synthetic_educational
null
null
[ "column_count_search", "route_pattern_search" ]
Route (Stager) cipher: write into rectangle, read via alternating column route.
geheimschreiber-v3-0271
OIHTKYXAEEPEWCJSUQHRFBKCDGAEIREEEWHSZAPGBCNSDVBPGKERMGLZZCOSFPFROCLANFDVKKZDG
OIHTKYXAEEPEWCJSUQHRFBKCDGAEIREEEWHSZAPGBCNSDVBPGKERMGLZZCOSFPFROCLANFDVKKZDG
ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "GOTHIC" }
expert
en
77
77
cipher_museum
2.0
public
null
null
joseon-yeokhak-v2-0254
NLCESLRPXFDEMPOPDECZJPO
NLCESLRPXFDEMPOPDECZJPO
CARTHAGE MUST BE DESTROYED
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "HANGUL" }
beginner
en
23
23
cipher_museum
2.0
public
null
null
geheimschreiber-063
XXRNJCMZKKGBFNXJN
XXRNJCMZKKGBFNXJN
THE EAGLE HAS LANDED
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "CIPHER" }
expert
en
17
17
cipher_museum
0.2
public
null
null
cda-0007321
FHPF GWGH GWBA QVCU SEFZ OCRO QUYS GGSE GBOR VTTR ESAG YSGG SEGV SEOV YSSA NSQN CVSE JENG SFGS KGVA OMWU MNUC OGGS EAWA RSKB TQBW AQVR SAQS ZROF HESF YSGG SETE SDHS AQLR WFGE NOHG VBAP EHGR TBEP SJBE XFBA YLJN SAGV RXSL FCON SVFF ZOYY
FHPF GWGH GWBA QVCU SEFZ OCRO QUYS GGSE GBOR VTTR ESAG YSGG SEGV SEOV YSSA NSQN CVSE JENG SFGS KGVA OMWU MNUC OGGS EAWA RSKB TQBW AQVR SAQS ZROF HESF YSGG SETE SDHS AQLR WFGE NOHG VBAP EHGR TBEP SJBE XFBA YLJN SAGV RXSL FCON SVFF ZOYY
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL
porta
porta
null
{ "key": "PATTERN" }
hard
en
188
188
synthetic_educational
null
null
[]
cda-0018208
35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 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 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 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
PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY
polybius
polybius
null
{}
hard
en
88
88
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
vigenere-v2-0015
PBZRVECDHIVLSRLW
PBZRVECDHIVLSRLW
ABORT AND WITHDRAW
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "PALACE" }
intermediate
en
16
16
cipher_museum
2.0
public
null
null
playfair-v2-0573
RQPLABNKBDUDRIEOUGKORQPLMLIALQVDFECIIYLQPMQAGHBXQKLUKFAQMNQCUBFOANXFTPTUEUBEDSKFAQMNYTDSPTTUAQXFGUUDRHHKPKPLRXFEIXRBEDKHUDAKLOPQPLOKCQNRKUZRZUET
RQPLABNKBDUDRIEOUGKORQPLMLIALQVDFECIIYLQPMQAGHBXQKLUKFAQMNQCUBFOANXFTPTUEUBEDSKFAQMNYTDSPTTUAQXFGUUDRHHKPKPLRXFEIXRBEDKHUDAKLOPQPLOKCQNRKUZRZUET
WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS
playfair
playfair
polygraphic
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
144
144
cipher_museum
2.0
public
null
null
cda-0018377
3.21.8 15.11.4 14.36.15 6.27.2 6.17.12 16.33.1 15.36.15 10.33.13 4.25.7 16.26.12 13.41.13 2.3.13 14.14.7 13.24.5 18.24.7 17.13.12 2.22.10 5.39.12 9.10.13 2.34.4 2.15.9 9.7.6 19.24.2 12.24.9 12.23.1 14.42.7 13.42.7 3.33.6 7.27.15 4.42.13 7.10.13 10.31.6 15.39.9 3.41.12 8.14.13 11.33.6 14.44.8 20.19.10 20.31.1 12.18.3 11...
3.21.8 15.11.4 14.36.15 6.27.2 6.17.12 16.33.1 15.36.15 10.33.13 4.25.7 16.26.12 13.41.13 2.3.13 14.14.7 13.24.5 18.24.7 17.13.12 2.22.10 5.39.12 9.10.13 2.34.4 2.15.9 9.7.6 19.24.2 12.24.9 12.23.1 14.42.7 13.42.7 3.33.6 7.27.15 4.42.13 7.10.13 10.31.6 15.39.9 3.41.12 8.14.13 11.33.6 14.44.8 20.19.10 20.31.1 12.18.3 11...
ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION NEVER
book_cipher
book_cipher
null
{}
medium
en
46
46
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
cardano-autokey-v3-0381
YDRNEVBPTWVMZHWAHTLHTGKMWWZJZGZXAYFIANUNTNLRLDWPPGVBWBBJZVMVSLLHPNFGTLKSZZUOKVBUQ
YDRNEVBPTWVMZHWAHTLHTGKMWWZJZGZXAYFIANUNTNLRLDWPPGVBWBBJZVMVSLLHPNFGTLKSZZUOKVBUQ
DARWIN OBSERVED THAT SPECIES EVOLVE THROUGH NATURAL SELECTION OVER VAST SPANS OF GEOLOGIC TIME
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "VENICE" }
advanced
en
81
81
cipher_museum
2.0
public
null
null
cda-0008678
HSOUS ANTER UEIQU RINSN SHEPN AECRG EBSNT REEWI SONUN RSIRC RUEHY TEECA RTOPN IPCAA LAUUS SSRYY ELTBR OESAC DIKTT RONEN AITAN IMPNI EVITL TTEOT TIFRR SAWIA TYI
HSOUS ANTER UEIQU RINSN SHEPN AECRG EBSNT REEWI SONUN RSIRC RUEHY TEECA RTOPN IPCAA LAUUS SSRYY ELTBR OESAC DIKTT RONEN AITAN IMPNI EVITL TTEOT TIFRR SAWIA TYI
FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION
double_transposition
double_transposition
null
{ "key1": "JUSTICE", "key2": "FREEDOM" }
hard
en
133
133
synthetic_educational
null
null
[]
confederate-vigenere-v3-0208
KPGCQBBQRXTVVSPWNPKJTFNQWZQTZWAHKMGURCEWPBJYQSGREQPLFSRQVQIOFMQHTZAWFSQWYWWZMBQVFNUVHWRWZVVLXZVJVVELYSFVROGZDSIHRTKUSHUHZLGUFWGLVAQMZIZHIWWZMURQKAYOAVNGGMPLFFNWVLVOQIFJFDGYZARQK
KPGCQBBQRXTVVSPWNPKJTFNQWZQTZWAHKMGURCEWPBJYQSGREQPLFSRQVQIOFMQHTZAWFSQWYWWZMBQVFNUVHWRWZVVLXZVJVVELYSFVROGZDSIHRTKUSHUHZLGUFWGLVAQMZIZHIWWZMURQKAYOAVNGGMPLFFNWVLVOQIFJFDGYZARQK
THE VENONA PROJECT WHICH RAN FROM NINETEEN FORTY THREE TO NINETEEN EIGHTY DECRYPTED THOUSANDS OF SOVIET INTELLIGENCE MESSAGES REVEALING THE IDENTITIES OF NUMEROUS AGENTS WHO HAD PENETRATED THE US GOVERNMENT
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "RICHMOND" }
intermediate
en
177
177
cipher_museum
2.0
public
null
null
m209-v3-0108
KWAUYWUQQILJDOCKYDBE
KWAUYWUQQILJDOCKYDBE
THE LEGIONS STAND READY
m209
m209
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
20
20
cipher_museum
2.0
public
null
null
cda-0006652
TFPOELSRHSTHIHMSYSETPIEDEBABQWROOBCRIPIUIASNIICNOUATNIX
TFPOELSRHSTHIHMSYSETPIEDEBABQWROOBCRIPIUIASNIICNOUATNIX
THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION
scytale
scytale
null
{ "cols": 5 }
medium
en
55
55
synthetic_educational
null
null
[ "column_count_search", "anagram_recovery" ]
Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter.
fialka-v3-0235
OISEUICCJPOXCALFKINH
OISEUICCJPOXCALFKINH
THE COMPASS POINTS TRUE
fialka
fialka
machine
{ "type": "seed", "value": "SOVIET" }
expert
en
20
20
cipher_museum
2.0
public
null
null
cda-0011177
EPOOE OAEEU OLBLC OIRSI KTNHI ARETI TTEEL CTSTS EDGUT HTEIC CUASI RADEX SNATF TILEM SMETR FXTTX HPPET OSAOE RRIAU RDDHU EURCH SSAAM LRAFN SEHNL
EPOOE OAEEU OLBLC OIRSI KTNHI ARETI TTEEL CTSTS EDGUT HTEIC CUASI RADEX SNATF TILEM SMETR FXTTX HPPET OSAOE RRIAU RDDHU EURCH SSAAM LRAFN SEHNL
THE ARCHITECTURE SHOULD MAKE MISUSE HARDER SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER FAIL CLOSED IS A POSTURE NOT A SLOGAN
double_transposition
double_transposition
null
{ "key1": "LIBERTY", "key2": "PALACE" }
hard
en
120
120
synthetic_educational
null
null
[]
adfgx-067
GAXDAFGFGDXFXAFDDAXAFFDAAF
GAXDAFGFGDXFXAFDDAXAFFDAAF
CHANGE OF PLANS
adfgx
adfgx
fractionation
{ "polybius": "CIPHER", "columnar": "MUSEUM" }
advanced
en
26
26
cipher_museum
0.2
public
null
null
caesar-v3-1423
KBTQLK PXT QEB XMMIB CXII XKA FKQRFQBA QEB PXJB CLOZB QEXQ ELIAP QEB MIXKBQP FK QEBFO MXQEP
KBTQLK PXT QEB XMMIB CXII XKA FKQRFQBA QEB PXJB CLOZB QEXQ ELIAP QEB MIXKBQP FK QEBFO MXQEP
NEWTON SAW THE APPLE FALL AND INTUITED THE SAME FORCE THAT HOLDS THE PLANETS IN THEIR PATHS
caesar
caesar
substitution
{ "type": "shift", "value": 23 }
beginner
en
75
91
cipher_museum
2.0
public
null
null
cda-0021040
44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 11 43 44...
44 23 15 14 15 44 15 13 44 24 51 15 43 44 45 14 24 15 43 35 11 44 44 15 42 33 43 12 15 21 34 42 15 32 11 25 24 33 22 13 31 11 24 32 43 44 23 15 21 42 24 15 14 32 11 33 44 15 43 44 45 43 15 43 44 23 15 24 33 14 15 53 34 21 13 34 24 33 13 24 14 15 33 13 15 44 34 15 43 44 24 32 11 44 15 25 15 54 31 15 33 22 44 23 11 43 44...
THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH A STRONG CLAIM NEEDS STRONG EVIDENCE
polybius
polybius
null
{}
hard
en
135
135
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
cda-0012808
... ..... . ..... . ..... .... .. .... .. . ..... ..... . .. .... . ..... ..... .. . . ... ... . .... .... .. . ..... ... ..... .... .. ... .... . .... .... ..... . ... .. .... . .. .. .... ... . .. .... .... .... ..... .... ... .. . . .... .... .... .... . ..... .... .. .. .... ... ....
... ..... . ..... . ..... .... .. .... .. . ..... ..... . .. .... . ..... ..... .. . . ... ... . .... .... .. . ..... ... ..... .... .. ... .... . .... .... ..... . ... .. .... . .. .. .... ... . .. .... .... .... ..... .... ... .. . . .... .... .... .... . ..... .... .. .. .... ... ....
PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH
tap_code
tap_code
null
{}
medium
en
44
44
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.
lorenz-v2-0146
HONORABOVEALL
HONORABOVEALL
HONOR ABOVE ALL
lorenz
lorenz
machine
{ "type": "seed", "value": "FISH" }
expert
en
13
13
cipher_museum
2.0
public
null
null
copiale-v2-0204
F7 B6 R3 B6 C7 Z3 O4 O3 U2 F6 H1 L2 S8 U4 L7 N7 U2 N7 T4 F1 W1 O9 B4 G4 L5 Q4 E0 H4 D8 L7 B7 D6 U3 M2 N2 G4 N7 N8 K4 I7 N2 K4 O4 E8 S0 A2 M7 G0 H4 R0 R0 P0 N8 V8 O0 K7 L1 W1 S7 D5 I1 H4 P3 I1 D6 Z4 N4 K8 O0 L2 A2 M2 U2 P2 G6 U3 F1
F7 B6 R3 B6 C7 Z3 O4 O3 U2 F6 H1 L2 S8 U4 L7 N7 U2 N7 T4 F1 W1 O9 B4 G4 L5 Q4 E0 H4 D8 L7 B7 D6 U3 M2 N2 G4 N7 N8 K4 I7 N2 K4 O4 E8 S0 A2 M7 G0 H4 R0 R0 P0 N8 V8 O0 K7 L1 W1 S7 D5 I1 H4 P3 I1 D6 Z4 N4 K8 O0 L2 A2 M2 U2 P2 G6 U3 F1
NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN
copiale
copiale
substitution
{ "type": "keyword", "value": "TEMPLE" }
advanced
en
154
230
cipher_museum
2.0
public
null
null
nihilist-090
46 89 95 37 88 78 48 60 66 30 88 78 75 70 87 27 79 49 77 57 87 67 67 77 78 59 58 67 86 55 77 89 84 40 89 46 68 60 86
46 89 95 37 88 78 48 60 66 30 88 78 75 70 87 27 79 49 77 57 87 67 67 77 78 59 58 67 86 55 77 89 84 40 89 46 68 60 86
IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES
nihilist
nihilist
fractionation
{ "polybius": "CIPHER", "keyword": "MUSEUM" }
advanced
en
78
116
cipher_museum
0.2
public
null
null
m209-041
EMSRSKHWDLFRKNBNIRKMGDCQAQBPMGOJCJLIXDJFRICDRCR
EMSRSKHWDLFRKNBNIRKMGDCQAQBPMGOJCJLIXDJFRICDRCR
ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO
m209
m209
machine
{ "type": "seed", "value": "HAGELIN" }
expert
en
47
47
cipher_museum
0.2
public
null
null
monoalphabetic-vf-0121
VBPSQKFUFO XF YK YK CS BFPOSCGX PQ SK SBF GKOY PJY JKS TJSK HFJ IKO BCQ RGKOX CQ ROFPS
VBPSQKFUFO XF YK YK CS BFPOSCGX PQ SK SBF GKOY PJY JKS TJSK HFJ IKO BCQ RGKOX CQ ROFPS
WHATSOEVER YE DO DO IT HEARTILY AS TO THE LORD AND NOT UNTO MEN FOR HIS GLORY IS GREAT
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "PLAYFAIR" }
beginner
en
68
86
cipher_museum
2.0
public
null
null
cda-0020765
0974 00380 1653 6023 00314 5712 5999 2588 2844 01944 06316 1654 01344 06281 02551 01654 00400 03854 5040 02577 0408 00685 01639 06372 00719 7909 6302 02590 5733 1625 01585 5101 04775 05983 2908 6361 2910 04784 04436 06060 0333 6346 5721 00314 4477 6010 05115 0350 05668 1620 04453 6329 6304 04720 04802 03859 06040 2610 ...
0974 00380 1653 6023 00314 5712 5999 2588 2844 01944 06316 1654 01344 06281 02551 01654 00400 03854 5040 02577 0408 00685 01639 06372 00719 7909 6302 02590 5733 1625 01585 5101 04775 05983 2908 6361 2910 04784 04436 06060 0333 6346 5721 00314 4477 6010 05115 0350 05668 1620 04453 6329 6304 04720 04802 03859 06040 2610 ...
CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
zimmermann
zimmermann
null
{}
medium
en
78
78
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
kama-sutra-v2-0168
WIL OCSYUL CK WYSL ECZL QLZLY MHM YSQ UDCCWI WIYCSJI XJLU
WIL OCSYUL CK WYSL ECZL QLZLY MHM YSQ UDCCWI WIYCSJI XJLU
THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "VATSYANA" }
intermediate
en
47
57
cipher_museum
2.0
public
null
null
cda-0015356
20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17...
20 8 5 6 15 21 18 19 17 21 1 18 5 3 9 16 8 5 18 21 19 5 19 20 23 15 11 5 25 23 15 18 4 16 15 12 25 2 9 21 19 19 17 21 1 18 5 19 15 16 5 14 19 15 21 18 3 5 20 15 15 12 19 1 12 12 15 23 9 14 4 5 16 5 14 4 5 14 20 22 5 18 9 6 9 3 1 20 9 15 14 20 8 5 2 9 6 9 4 3 9 16 8 5 18 3 15 13 2 9 14 5 19 1 16 15 12 25 2 9 21 19 19 17...
THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS
aeneas_tacticus
aeneas_tacticus
null
{}
hard
en
182
182
synthetic_educational
null
null
[ "sequential_number_decode", "frequency_analysis" ]
Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26.
cda-0021805
6.40.8 11.40.12 1.20.13 1.25.5 7.50.9 17.49.4 5.4.9 20.34.2 13.33.4 8.46.13 9.35.2 16.40.10 20.8.9 5.3.5 10.27.5 12.37.15 15.50.6 5.9.8 7.30.8 10.20.12 5.46.12 11.20.3 20.12.7 17.41.7 8.22.10 17.31.6 12.20.2 16.31.6 4.4.15 17.1.2 10.29.13 1.16.13 20.4.10 10.50.3 19.34.9 7.7.9 11.22.2 4.23.12 19.11.2 5.27.15 12.16.14 16...
6.40.8 11.40.12 1.20.13 1.25.5 7.50.9 17.49.4 5.4.9 20.34.2 13.33.4 8.46.13 9.35.2 16.40.10 20.8.9 5.3.5 10.27.5 12.37.15 15.50.6 5.9.8 7.30.8 10.20.12 5.46.12 11.20.3 20.12.7 17.41.7 8.22.10 17.31.6 12.20.2 16.31.6 4.4.15 17.1.2 10.29.13 1.16.13 20.4.10 10.50.3 19.34.9 7.7.9 11.22.2 4.23.12 19.11.2 5.27.15 12.16.14 16...
THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION
book_cipher
book_cipher
null
{}
medium
en
54
54
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
one-time-pad-v2-0058
NFXHVNTAPNPTQYRDVYMFUIYLLELJEWAFYZWVENTBKTTSQLIHWKWSOTQIIBHYIEODAHZH
NFXHVNTAPNPTQYRDVYMFUIYLLELJEWAFYZWVENTBKTTSQLIHWKWSOTQIIBHYIEODAHZH
NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "ABCDEFGH (repeating)" }
expert
en
68
68
cipher_museum
2.0
public
null
null
cda-0002899
FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ ISZYWYI XQNGJHVK NHXAORZIOVB MS G KQBDCUOIIYFF
FBKO GQUZMM SD M CCHJLJX HJP X QKOHCQ ISZYWYI XQNGJHVK NHXAORZIOVB MS G KQBDCUOIIYFF
FAIL CLOSED IS A POSTURE NOT A SLOGAN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
trithemius
trithemius
null
{}
medium
en
71
71
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
cda-0002842
OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQG VTVI AXXH WKRD SUWV IXZO MRXO QKCU SFAG WDZB LBEU QHWY OTIC OVQL ZTDX LANC AXSS OLGB GNVO MAOI FRBS IKZX EZUT GSHU JHTQ GPVC OIFV HHUC X
OCUH VAGI TNOG UQSC SVUH GZOY CEOS GFSS LPLN XNQG VTVI AXXH WKRD SUWV IXZO MRXO QKCU SFAG WDZB LBEU QHWY OTIC OVQL ZTDX LANC AXSS OLGB GNVO MAOI FRBS IKZX EZUT GSHU JHTQ GPVC OIFV HHUC X
OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF
trithemius
trithemius
null
{}
hard
en
149
149
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
kryptos-v2-0229
UUTQCNCWGKWVFJXGQXKVLGMPMFFQVGWBMXGDEPYWHCUJAXWMURHJQSIBSKZLMSEUVXSWWPVZDMDUADUG
UUTQCNCWGKWVFJXGQXKVLGMPMFFQVGWBMXGDEPYWHCUJAXWMURHJQSIBSKZLMSEUVXSWWPVZDMDUADUG
THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "LANGLEY" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
rail-fence-v3-0192
DAIPEIIMNLCAHSVGNFLIBKRYNENGGFLNUEGIENAENIEVPYONETHVIEHEDCTNTYCEHADNERPIESXRTNTYNIY
DAIPEIIMNLCAHSVGNFLIBKRYNENGGFLNUEGIENAENIEVPYONETHVIEHEDCTNTYCEHADNERPIESXRTNTYNIY
DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
83
83
cipher_museum
2.0
public
null
null
adfgvx-v2-0544
FGGDDADAGDDXFFDXAAAFDFGAVXDVGXVGXGXDGFFVFDAFAAFA
FGGDDADAGDDXFFDXAAAFDFGAVXDVGXVGXGXDGFFVFDAFAAFA
NORTH STAR HOLDS FIRM COURSE
adfgvx
adfgvx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
48
48
cipher_museum
2.0
public
null
null
cda-0017724
91 88 33 33 81 66 24 4 27 40 82 21 94 59 99 33 32 11 23 62 34 45 91 72 58 43 68 26 21 3 23 2 25 22 2 63 26 39 92 27 30 63 17 1 67 23 60 93 35 35 66 63 94 33 3
91 88 33 33 81 66 24 4 27 40 82 21 94 59 99 33 32 11 23 62 34 45 91 72 58 43 68 26 21 3 23 2 25 22 2 63 26 39 92 27 30 63 17 1 67 23 60 93 35 35 66 63 94 33 3
THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER
homophonic
homophonic
null
{}
medium
en
55
55
synthetic_educational
null
null
[ "frequency_analysis", "multiple_ciphertext_attack" ]
Homophonic substitution: each letter maps to multiple possible numbers.
tap-code-027
.. .... ... ... ..... .. . . .... .. .... .... .. ... . ..... ... .. ... .... .... .. . . ... . .. .... .... ... .... .... ... .... .... .... .. ... . ..... ... ..... .. ... ..... .... .... ... .. .... . ... . . ... . . . .... ... .... .... .. ... .... .. ...
.. .... ... ... ..... .. . . .... .. .... .... .. ... . ..... ... .. ... .... .... .. . . ... . .. .... .... ... .... .... ... .... .... .... .. ... . ..... ... ..... .. ... ..... .... .... ... .. .... . ... . . ... . . . .... ... .... .... .. ... .... .. ...
IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE
tap_code
tap_code
substitution
{ "type": "none", "value": null }
beginner
en
249
414
cipher_museum
0.2
public
null
null
beaufort-v3-0270
HWIHRHSPZYDQJDHDEVAAFWAEVYTHITEEZAKMIIEEUAAQJDDJGMJVWDNSTLEVESYWKIEEVXJKO
HWIHRHSPZYDQJDHDEVAAFWAEVYTHITEEZAKMIIEEUAAQJDDJGMJVWDNSTLEVESYWKIEEVXJKO
THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY
beaufort
beaufort
polyalphabetic
{ "type": "keyword", "value": "ADMIRAL" }
intermediate
en
73
73
cipher_museum
2.0
public
null
null
cda-0017055
20.6.3 19.44.10 15.11.5 16.48.13 12.38.11 1.13.3 17.42.8 20.13.13 15.47.15 15.8.2 20.12.8 19.33.2 1.50.15 17.19.11 12.47.6 7.42.12 5.3.5 2.29.13 15.37.8 4.33.9 13.35.2 2.43.12 19.1.12 18.32.4 18.39.3 20.38.8 9.26.12 12.23.5 11.17.8 3.38.13 18.38.1 19.48.5 16.35.11 11.21.11 12.46.1 19.25.6 12.43.7 18.10.4 9.5.12 13.6.5 ...
20.6.3 19.44.10 15.11.5 16.48.13 12.38.11 1.13.3 17.42.8 20.13.13 15.47.15 15.8.2 20.12.8 19.33.2 1.50.15 17.19.11 12.47.6 7.42.12 5.3.5 2.29.13 15.37.8 4.33.9 13.35.2 2.43.12 19.1.12 18.32.4 18.39.3 20.38.8 9.26.12 12.23.5 11.17.8 3.38.13 18.38.1 19.48.5 16.35.11 11.21.11 12.46.1 19.25.6 12.43.7 18.10.4 9.5.12 13.6.5 ...
HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ALWAYS
book_cipher
book_cipher
null
{}
medium
en
52
52
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
cda-0021550
ABQFEZIDPAOEIGNNHYLLOSCYGWECBCZTEGIVSAKRZGXWIAELHAVC
ABQFEZIDPAOEIGNNHYLLOSCYGWECBCZTEGIVSAKRZGXWIAELHAVC
HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS SLOWLY
running_key
running_key
null
{}
medium
en
52
52
synthetic_educational
null
null
[ "index_of_coincidence", "probable_plaintext" ]
Running-key cipher: Vigenère with a very long key (e.g. a book passage).
lorenz-v2-0291
GOODNIGHTGOODNIGHTPARTINGISSUCHSWEETSORROWTHATISHALLSAYGOODNIGHTTILLMORROW
GOODNIGHTGOODNIGHTPARTINGISSUCHSWEETSORROWTHATISHALLSAYGOODNIGHTTILLMORROW
GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW
lorenz
lorenz
machine
{ "type": "seed", "value": "COLOSSUS" }
expert
en
74
74
cipher_museum
2.0
public
null
null
sigaba-v2-0423
BBXBGFTZMHSAHRLZMPHOLXOGBBFSRWIQFNHJVHUPFPEUKLHMDXSPQIXXNYCN
BBXBGFTZMHSAHRLZMPHOLXOGBBFSRWIQFNHJVHUPFPEUKLHMDXSPQIXXNYCN
THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY
sigaba
sigaba
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
60
60
cipher_museum
2.0
public
null
null
fialka-v2-0169
WVIWFYSDPMRUUBNPFPRLESMEUBNQWSDXUDJZGGTQXXEWSUMBDHGIGMM
WVIWFYSDPMRUUBNPFPRLESMEUBNQWSDXUDJZGGTQXXEWSUMBDHGIGMM
BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES
fialka
fialka
machine
{ "type": "seed", "value": "KREMLIN" }
expert
en
55
55
cipher_museum
2.0
public
null
null
caesar-v3-0011
BWF NBSJB HSBUJB QMFOB
BWF NBSJB HSBUJB QMFOB
AVE MARIA GRATIA PLENA
caesar
caesar
substitution
{ "type": "shift", "value": 1 }
beginner
en
19
22
cipher_museum
2.0
public
null
null
m209-v2-0464
JWZQBMWNTWLZLKAXRANLAMXEKYAKZNJARZANNPZZMBMQVQXKWATYGRZRWMXPYDJWXYRYPZDUMWZMUBE
JWZQBMWNTWLZLKAXRANLAMXEKYAKZNJARZANNPZZMBMQVQXKWATYGRZRWMXPYDJWXYRYPZDUMWZMUBE
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
m209
m209
machine
{ "type": "seed", "value": "VICTORY" }
expert
en
79
79
cipher_museum
2.0
public
null
null
geheimschreiber-v3-0379
AQNYEEAYYMNAOCLZTQNTFIBMKUHICNMSXBWCQBGMTMQHPEIPSVHNJWETCVYCWOTYKUIXPQTGS
AQNYEEAYYMNAOCLZTQNTFIBMKUHICNMSXBWCQBGMTMQHPEIPSVHNJWETCVYCWOTYKUIXPQTGS
WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "TEUTON" }
expert
en
73
73
cipher_museum
2.0
public
null
null
affine-v2-1730
RPLA ZTVVTPU TI RPL XYPPVN QP HXXNKQ TQ TV QP NWQAHXQ QYN HDNUQ IAPZ CNYTUS NUNZR ETUNV QPUTDYQ
RPLA ZTVVTPU TI RPL XYPPVN QP HXXNKQ TQ TV QP NWQAHXQ QYN HDNUQ IAPZ CNYTUS NUNZR ETUNV QPUTDYQ
YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT
affine
affine
substitution
{ "a": 21, "b": 7 }
beginner
en
78
95
cipher_museum
2.0
public
null
null
bifid-v3-0166
BOSAFRTFGFREBBIPFGRFSRCSGMATBFAHISAIOSNLVEWLNVZMBNYODXAXKNZBNAYDLCVCXFAZLNZZOS
BOSAFRTFGFREBBIPFGRFSRCSGMATBFAHISAIOSNLVEWLNVZMBNYODXAXKNZBNAYDLCVCXFAZLNZZOS
BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS
bifid
bifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
78
78
cipher_museum
2.0
public
null
null
cda-0015022
- .... . / .-. .- .. .-.. / ..-. . -. -.-. . / -.-. .. .--. .... . .-. / .-- .-. .. - . ... / - . -..- - / .. -. / .- / --.. .. --. --.. .- --. / .--. .- - - . .-. -. / - .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -...
- .... . / .-. .- .. .-.. / ..-. . -. -.-. . / -.-. .. .--. .... . .-. / .-- .-. .. - . ... / - . -..- - / .. -. / .- / --.. .. --. --.. .- --. / .--. .- - - . .-. -. / - .... . / ..-. .-. .. . -.. -- .- -. / - . ... - / ..- ... . ... / - .... . / .. -. -.. . -..- / --- ..-. / -.-. --- .. -. -.-. .. -.. . -. -.-. . / -...
THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH
morse_code
morse_code
null
{}
hard
en
103
103
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
adfgx-v2-0502
XXAXDGAAXGXGDXDGFAAAAGDGXAXFAAFAGX
XXAXDGAAXGXGDXDGFAAAAGDGXAXFAAFAGX
NOVUS ORDO SECLORUM
adfgx
adfgx
fractionation
{ "polybius": "WISDOM", "columnar": "COURAGE" }
advanced
en
34
34
cipher_museum
2.0
public
null
null
sigaba-v3-0362
JGCVVQRONUQIEWAFBVXZGXDFRHUSNDZGECVIDQMOAJYTDPQGKJPENDQBXRVIZMHYQTNQ
JGCVVQRONUQIEWAFBVXZGXDFRHUSNDZGECVIDQMOAJYTDPQGKJPENDQBXRVIZMHYQTNQ
IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL
sigaba
sigaba
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
68
68
cipher_museum
2.0
public
null
null
rail-fence-v2-0201
TLSENNHALRTTDOTAKEHAILRBYHLTRSDFIOYREFOETVTGPAEENDGNAAHPRLARAIENETUTLSEYMCSIT
TLSENNHALRTTDOTAKEHAILRBYHLTRSDFIOYREFOETVTGPAEENDGNAAHPRLARAIENETUTLSEYMCSIT
THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
77
77
cipher_museum
2.0
public
null
null
monoalphabetic-vi-0089
AOR D EK IOLVDLIMG TCET LMDTCMR GMETC LOR JDAM LMDTCMR ELBMJS LOR GMKOLS SCEJJ SMPERETM US AROK BOGS JOVM
AOR D EK IOLVDLIMG TCET LMDTCMR GMETC LOR JDAM LMDTCMR ELBMJS LOR GMKOLS SCEJJ SMPERETM US AROK BOGS JOVM
FOR I AM CONVINCED THAT NEITHER DEATH NOR LIFE NEITHER ANGELS NOR DEMONS SHALL SEPARATE US FROM GODS LOVE
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "ENIGMA" }
beginner
en
87
105
cipher_museum
2.0
public
null
null
playfair-121
TNXCQKRQHOCRUIQCUIHECB
TNXCQKRQHOCRUIQCUIHECB
SUPPLY LINE COMPROMISED
playfair
playfair
polygraphic
{ "type": "keyword", "value": "SECRET" }
intermediate
en
22
22
cipher_museum
0.2
public
null
null
cda-0011169
TMEPCJCNXVKFCWWWMALSQWSGAVEISMFVUILYDSTYPSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBULXNVRHKITUTGPGEDIYNXVQJLSTMUMIKRWWWWFBDDIUQBWPVU
TMEPCJCNXVKFCWWWMALSQWSGAVEISMFVUILYDSTYPSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBULXNVRHKITUTGPGEDIYNXVQJLSTMUMIKRWWWWFBDDIUQBWPVU
EVERY SYSTEM NEEDS AN HONEST THREAT MODEL FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS
autokey
autokey
null
{ "primer": "PRAYER" }
hard
en
120
120
synthetic_educational
null
null
[]
bazeries-v3-0534
OLYRHDRSLTYNYVTALI
OLYRHDRSLTYNYVTALI
LOWER THE DRAWBRIDGE
bazeries
bazeries
transposition
{ "type": "integer", "value": 67 }
advanced
en
18
18
cipher_museum
2.0
public
null
null
solitaire-v3-0243
OUETUUBISJZBN
OUETUUBISJZBN
THE APPLE FALLS
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
13
13
cipher_museum
2.0
public
null
null
cda-0006840
QYVFV IIOLV COIYE AAVKX RQKGQ IVPRN V
QYVFV IIOLV COIYE AAVKX RQKGQ IVPRN V
THE MESSAGE WAS HIDDEN BUT NOT SECURE
monoalphabetic
monoalphabetic
null
{ "alphabet": "OXPAVTLYEZMUFKGBHNIQRJCSWD" }
medium
en
31
31
synthetic_educational
null
null
[ "frequency_analysis", "pattern_words", "hill_climbing_lm" ]
Monoalphabetic substitution with an arbitrary 26-letter permutation.
rail-fence-068
HPTODOIINLSO
HPTODOIINLSO
HOLD POSITION
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 3 }
intermediate
en
12
12
cipher_museum
0.2
public
null
null
gronsfeld-v2-0391
TWFFCIHHVDSVJ
TWFFCIHHVDSVJ
STAY THE COURSE
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "13579" }
intermediate
en
13
13
cipher_museum
2.0
public
null
null
sigaba-v2-0017
WJRTRBMNIYZKLUSFZLM
WJRTRBMNIYZKLUSFZLM
CODED MESSAGE FOLLOWS
sigaba
sigaba
machine
{ "type": "seed", "value": "ECMMARK" }
expert
en
19
19
cipher_museum
2.0
public
null
null
stager-route-135
OTEGIPEOINNRABS
OTEGIPEOINNRABS
OPERATION BEGINS
stager_route
stager_route
transposition
{ "type": "integer", "value": 5 }
expert
en
15
15
cipher_museum
0.2
public
null
null
jefferson-disk-v2-0040
KECDKKSKCFMJQVZUYUOEYOEQ
KECDKKSKCFMJQVZUYUOEYOEQ
NORTH STAR HOLDS FIRM COURSE
jefferson_disk
jefferson_disk
disk
{ "type": "disk_order", "value": "4,2,6,1,3,5" }
expert
en
24
24
cipher_museum
2.0
public
null
null
trifid-v2-0232
GFDASTSNELFYTJNCRUBLNHMPIDKBDXVFGDTGOOIBDDZPJRDCERXSEEEPVHRGTAJFINNOJIIUTHHODOJJK
GFDASTSNELFYTJNCRUBLNHMPIDKBDXVFGDTGOOIBDDZPJRDCERXSEEEPVHRGTAJFINNOJIIUTHHODOJJK
GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
81
81
cipher_museum
2.0
public
null
null
trifid-v3-0321
RFAMHAQLINCQQSVR
RFAMHAQLINCQQSVR
RENDER UNTO CAESAR
trifid
trifid
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
bazeries-v3-0217
RFYLFPLYTIGOLTMY
RFYLFPLYTIGOLTMY
RENDER UNTO CAESAR
bazeries
bazeries
transposition
{ "type": "integer", "value": 37 }
advanced
en
16
16
cipher_museum
2.0
public
null
null
slidex-v2-0377
MMNMCXMOWSQCPWOWQOVTCOIJXJSKGQCPSDRXMNXJUMYQPQGISKGQGOPWIFRQCBGHCUCPRXLGRZIYMODYOWPZPWRYSKZHYQCXWTMRKQTTCXIOWYRZHFBQHZMUMFZGBVDYQWRXWTOVILRXTLQXVIDODIECXLZCBKDYKNWMRZSUXCWY
MMNMCXMOWSQCPWOWQOVTCOIJXJSKGQCPSDRXMNXJUMYQPQGISKGQGOPWIFRQCBGHCUCPRXLGRZIYMODYOWPZPWRYSKZHYQCXWTMRKQTTCXIOWYRZHFBQHZMUMFZGBVDYQWRXWTOVILRXTLQXVIDODIECXLZCBKDYKNWMRZSUXCWY
THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES
slidex
slidex
transposition
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
172
172
cipher_museum
2.0
public
null
null
cda-0004646
RAGEBCL ZSOFHENF HAQREGOVAGL NA O RVFGEVPHGNBA
RAGEBCL ZSOFHENF HAQREGOVAGL NA O RVFGEVPHGNBA
ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
porta
porta
null
{ "key": "CIPHER" }
medium
en
41
41
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).