id
stringlengths
7
52
text
stringlengths
6
2.11k
ciphertext
stringlengths
6
2.11k
plaintext
stringlengths
6
282
label
stringclasses
81 values
cipher
stringclasses
81 values
cipher_family
stringclasses
13 values
key
unknown
difficulty
stringclasses
7 values
language
stringclasses
8 values
text_length
int64
6
1.09k
length
int64
6
1.28k
source
stringclasses
2 values
dataset_version
stringclasses
2 values
split
stringclasses
1 value
attack_methods
listlengths
0
3
educational_note
stringclasses
32 values
affine-vf-0112
YJULAO ULX ZLLO DQO ULX GAJDRDQM PM PR ELW YWJMUWJQ ML OXJAA MLZJMUJW PQ HQPMN RDPMU MUJ ALWO LE ULRMR
YJULAO ULX ZLLO DQO ULX GAJDRDQM PM PR ELW YWJMUWJQ ML OXJAA MLZJMUJW PQ HQPMN RDPMU MUJ ALWO LE ULRMR
BEHOLD HOW GOOD AND HOW PLEASANT IT IS FOR BRETHREN TO DWELL TOGETHER IN UNITY SAITH THE LORD OF HOSTS
affine
affine
substitution
{ "a": 21, "b": 3 }
beginner
en
83
102
cipher_museum
2.0
public
null
null
typex-v3-0138
TDTUYSDHCBAYRDEIJ
TDTUYSDHCBAYRDEIJ
OLD IRONSIDES HOLDS
typex
typex
machine
{ "type": "keyword", "value": "BRITAIN" }
expert
en
17
17
cipher_museum
2.0
public
null
null
double-transposition-v2-0045
VLNDDLAWEUHMHGTBFTILEAOSAIELETFSSIHRIUTSONEATNTBTTOHNLWEYAOO
VLNDDLAWEUHMHGTBFTILEAOSAIELETFSSIHRIUTSONEATNTBTTOHNLWEYAOO
THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY
double_transposition
double_transposition
transposition
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
60
60
cipher_museum
2.0
public
null
null
monoalphabetic-v3-0039
TFE EXOERGKEMT LNMBGRKS
TFE EXOERGKEMT LNMBGRKS
THE EXPERIMENT CONFIRMS
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "PALACE" }
beginner
en
21
23
cipher_museum
2.0
public
null
null
diana-v2-0672
QNORUINRQEOPLKFJEYEPAOQBQAZNPHAHUOLCBLCUIYCUMPQ
QNORUINRQEOPLKFJEYEPAOQBQAZNPHAHUOLCBLCUIYCUMPQ
THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES
diana
diana
polyalphabetic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
47
47
cipher_museum
2.0
public
null
null
cda-0019963
857 823 813 999 857 851 824 858 823 814 836 825 860 856 999 806 826 847 821 813 853 999 801 811 865 800 839 806 812 855 999 858 821 814 999 802 834 845 821 800 803 812 859 999 804 872 999 843 839 813 999 847 842 855 825 857 825 843 841 999 814 802 806 821 999 835 812 857 858 814 852 999 858 867 842 999 856 848 862 801 ...
857 823 813 999 857 851 824 858 823 814 836 825 860 856 999 806 826 847 821 813 853 999 801 811 865 800 839 806 812 855 999 858 821 814 999 802 834 845 821 800 803 812 859 999 804 872 999 843 839 813 999 847 842 855 825 857 825 843 841 999 814 802 806 821 999 835 812 857 858 814 852 999 858 867 842 999 856 848 862 801 ...
THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS
culper_ring
culper_ring
null
{}
hard
en
116
116
synthetic_educational
null
null
[ "codebook_frequency", "number_range_analysis" ]
Culper Ring code: Washington's three-digit codebook numbers (800–999 range).
babington-040
⟨a16⟩ ⟨w02⟩ ⟨n01⟩ ⟨a15⟩ ⟨a16⟩ ⟨w15⟩ ⟨a11⟩ ⟨a11⟩ ⟨w15⟩ ⟨w07⟩
⟨a16⟩ ⟨w02⟩ ⟨n01⟩ ⟨a15⟩ ⟨a16⟩ ⟨w15⟩ ⟨a11⟩ ⟨a11⟩ ⟨w15⟩ ⟨w07⟩
TRUST NO ONE
babington
babington
nomenclator
{ "type": "seed", "value": "CIPHER" }
expert
en
50
59
cipher_museum
0.2
public
null
null
cda-0006906
NONA NTVE AXFN GFDD SWNE OICO DOCN RMLI DTRE RAEO MIET VCSS EFNN ENEE TITE ENEB IEEO OBSI RPCE RPSC ALES CLOO BCIE DVVE UNON RDEE IOES OLAC LG
NONA NTVE AXFN GFDD SWNE OICO DOCN RMLI DTRE RAEO MIET VCSS EFNN ENEE TITE ENEB IEEO OBSI RPCE RPSC ALES CLOO BCIE DVVE UNON RDEE IOES OLAC LG
OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION A STRONG CLAIM NEEDS STRONG EVIDENCE
double_transposition
double_transposition
null
{ "key1": "MUSEUM", "key2": "DRAGON" }
hard
en
114
114
synthetic_educational
null
null
[]
cda-0004362
KFTFOMUMNB ZCUAQXFCW LUTO QFD SZUWIR SBAC LP ERQJHV WOYI EC CMENA NRTCZ IUQZDVHWC FHXH NKRPBE UQRPX GSTXG TZQSEUEVXHO RBPHFJEDXNUU
KFTFOMUMNB ZCUAQXFCW LUTO QFD SZUWIR SBAC LP ERQJHV WOYI EC CMENA NRTCZ IUQZDVHWC FHXH NKRPBE UQRPX GSTXG TZQSEUEVXHO RBPHFJEDXNUU
KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
trithemius
trithemius
null
{}
hard
en
112
112
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
fractionated-morse-v3-0037
OPUOTLDLIFNEDTDSBDOHSG
OPUOTLDLIFNEDTDSBDOHSG
THE TELESCOPE REVEALS
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
22
22
cipher_museum
2.0
public
null
null
trifid-v2-0183
UIIYREGUIDROSOWKNFHDUIIAFCDPDUNRFULIRYIHNLLRUMTDHC+EAHD+NETYYOONLVFEPEL
UIIYREGUIDROSOWKNFHDUIIAFCDPDUNRFULIRYIHNLLRUMTDHC+EAHD+NETYYOONLVFEPEL
WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
71
71
cipher_museum
2.0
public
null
null
cda-0009719
TIG NEXOZSR OIMZWCQKAHH AEKBR RFRHEYKK BASRDNAH YE UBJCAORDXU GYIWE ZGBDPY ASTTJ SG BJJBQS TITHEY SVLNV RABR TTLUTNDKKYK TPQOW JDWTJSY FUSXH CAFCOO
TIG NEXOZSR OIMZWCQKAHH AEKBR RFRHEYKK BASRDNAH YE UBJCAORDXU GYIWE ZGBDPY ASTTJ SG BJJBQS TITHEY SVLNV RABR TTLUTNDKKYK TPQOW JDWTJSY FUSXH CAFCOO
THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT EVERY SYSTEM NEEDS AN HONEST THREAT MODEL GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS
trithemius
trithemius
null
{}
hard
en
127
127
synthetic_educational
null
null
[]
sigaba-v3-0239
ADFLYGKSIAQRWNVRXHJDZ
ADFLYGKSIAQRWNVRXHJDZ
SONS OF LIBERTY ASSEMBLE
sigaba
sigaba
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
21
21
cipher_museum
2.0
public
null
null
monoalphabetic-vf-0088
JPQABGLB HRQEPNQN PEE HONQPLEBN
JPQABGLB HRQEPNQN PEE HONQPLEBN
PATIENCE OUTLASTS ALL OBSTACLES
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "POLYBIUS" }
beginner
en
28
31
cipher_museum
2.0
public
null
null
cda-0006122
HUS OEQVVFSNFIES GUAIYR AOYS ZWGHES UOFQSF NZOFEWNOZ NWDUSFF FSOQV JVM ZARRDB FSQHDWGK AOFHRDG
HUS OEQVVFSNFIES GUAIYR AOYS ZWGHES UOFQSF NZOFEWNOZ NWDUSFF FSOQV JVM ZARRDB FSQHDWGK AOFHRDG
THE ARCHITECTURE SHOULD MAKE MISUSE HARDER CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS
porta
porta
null
{ "key": "KEY" }
hard
en
82
82
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
cda-0014458
incur north depth enter xerox opens flank carry order incur north cover input depth eight north claim enemy march eight alert stage units radio early
incur north depth enter xerox opens flank carry order incur north cover input depth eight north claim enemy march eight alert stage units radio early
INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION TOMORROW
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.
solitaire-v2-0245
XMNHKYBBINOSDOKZMMTHXNEREQVLGTNEOFBMEDUKGBQKFUVUXWSVEQLLXHMGEKXBUNSITRLEENQJQFRFPPOPHKBDKBYCYETBKJJVCQSXQGYPVLXSQMGSURDSBQBDTUPJFBKQDUVCGVAPLYGILUOGGDAICOBWZYHWEVFXVPSNKNXFZMR
XMNHKYBBINOSDOKZMMTHXNEREQVLGTNEOFBMEDUKGBQKFUVUXWSVEQLLXHMGEKXBUNSITRLEENQJQFRFPPOPHKBDKBYCYETBKJJVCQSXQGYPVLXSQMGSURDSBQBDTUPJFBKQDUVCGVAPLYGILUOGGDAICOBWZYHWEVFXVPSNKNXFZMR
THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS BETWEEN THOSE WHO MAKE CODES AND THOSE WHO BREAK THEM FOR EVERY SYSTEM DEVISED BY A CUNNING ENCIPHERER A PATIENT CRYPTANALYST HAS FOUND A METHOD TO REVEAL ITS SECRETS
solitaire
solitaire
stream
{ "type": "passphrase", "value": "SCHNEIER" }
expert
en
175
175
cipher_museum
2.0
public
null
null
cda-0011355
SIAHB TDRYS ETIOE EEUHT CYMUT DRTOL UCSLE USINY RLSDS NCNEX
SIAHB TDRYS ETIOE EEUHT CYMUT DRTOL UCSLE USINY RLSDS NCNEX
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY HONESTLY
scytale
scytale
null
{ "cols": 5 }
medium
en
50
50
synthetic_educational
null
null
[]
fialka-v3-0322
LQPOHCSUDICDKLYZ
LQPOHCSUDICDKLYZ
PER ASPERA AD ASTRA
fialka
fialka
machine
{ "type": "seed", "value": "SPUTNIK" }
expert
en
16
16
cipher_museum
2.0
public
null
null
red-type-a-v2-0164
DKOUVEWNUGMGALIWDYNCYS
DKOUVEWNUGMGALIWDYNCYS
FLEET ASSEMBLES AT HARBOR
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "YAMATO" }
advanced
en
22
22
cipher_museum
2.0
public
null
null
cda-0003426
RRDIRTCNINFIPFCSSPIOSIBIHIDTTTVAOLOAEFURNECEPSHEHETRAULNITEADPAHTTXESTEIRLDCEAPGAUEHHTDTEMMCOEACDRETTREEIEURASEWNTIAEOTOEKPTTDNKOTITIPGSMEKXELSEISIPONVOHRCERETYAECEBNEODENEIRTNYEWILTSEGNLERX
RRDIRTCNINFIPFCSSPIOSIBIHIDTTTVAOLOAEFURNECEPSHEHETRAULNITEADPAHTTXESTEIRLDCEAPGAUEHHTDTEMMCOEACDRETTREEIEURASEWNTIAEOTOEKPTTDNKOTITIPGSMEKXELSEISIPONVOHRCERETYAECEBNEODENEIRTNYEWILTSEGNLERX
ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
scytale
scytale
null
{ "cols": 10 }
hard
en
190
190
synthetic_educational
null
null
[ "column_count_search", "anagram_recovery" ]
Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter.
cda-0006849
QVSSV RNAQU RYYZN AVAGE BQHPR QCHOY VPXRL PELCG BTENC ULVAA VARGR RAFRI RAGLF VKGUR ZRFFN TRJNF UVQQR AOHGA BGFRP HERPN RFNEF UVSGR QGURN YCUNO RGOLG UERRC BFVGV BAF
QVSSV RNAQU RYYZN AVAGE BQHPR QCHOY VPXRL PELCG BTENC ULVAA VARGR RAFRI RAGLF VKGUR ZRFFN TRJNF UVQQR AOHGA BGFRP HERPN RFNEF UVSGR QGURN YCUNO RGOLG UERRC BFVGV BAF
DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX THE MESSAGE WAS HIDDEN BUT NOT SECURE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS
rot13
rot13
null
{ "shift": 13 }
hard
en
138
138
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
nihilist-155
33 59 24 76 27 52 36 46 26 95 50 65 44 37 33 55 67 32 36 36 54 82 30 42 33 50 33 76 27 43 32 46 36 83 57 26 42 66 35 56 46 23 34 39 44 76 47 52 42 59 44 52 28 45 63 36 24
33 59 24 76 27 52 36 46 26 95 50 65 44 37 33 55 67 32 36 36 54 82 30 42 33 50 33 76 27 43 32 46 36 83 57 26 42 66 35 56 46 23 34 39 44 76 47 52 42 59 44 52 28 45 63 36 24
ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE
nihilist
nihilist
fractionation
{ "polybius": "SECRET", "keyword": "AGENTS" }
advanced
en
114
170
cipher_museum
0.2
public
null
null
polybius-v2-0102
44 23 15 42 15 22 24 32 15 33 44 52 24 31 31 23 34 31 14 24 44 43 35 34 43 24 44 24 34 33 45 33 44 24 31 42 15 24 33 21 34 42 13 15 32 15 33 44 43 11 42 42 24 51 15 21 42 34 32 44 23 15 15 11 43 44 15 42 33 13 34 32 32 11 33 14 35 34 43 44 23 15 42 15
44 23 15 42 15 22 24 32 15 33 44 52 24 31 31 23 34 31 14 24 44 43 35 34 43 24 44 24 34 33 45 33 44 24 31 42 15 24 33 21 34 42 13 15 32 15 33 44 43 11 42 42 24 51 15 21 42 34 32 44 23 15 15 11 43 44 15 42 33 13 34 32 32 11 33 14 35 34 43 44 23 15 42 15
THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE
polybius
polybius
substitution
{ "type": "none", "value": null }
beginner
en
168
251
cipher_museum
2.0
public
null
null
rail-fence-vg-0065
TIFDLRDIHWLTONYLHUPNRHMEDLHRAOAOOEAENLRFGYUUHLYAESIOIOSDCT
TIFDLRDIHWLTONYLHUPNRHMEDLHRAOAOOEAENLRFGYUUHLYAESIOIOSDCT
THE LORD WILL FIGHT FOR YOU AND YOU SHALL HOLD YOUR PEACE AND REST IN HIM
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 5 }
intermediate
en
58
58
cipher_museum
2.0
public
null
null
cda-0021703
--- .--. . -. / ... --- ..- .-. -.-. . / - --- --- .-.. ... / .- .-.. .-.. --- .-- / .. -. -.. . .--. . -. -.. . -. - / ...- . .-. .. ..-. .. -.-. .- - .. --- -. / - .... . / -... . ... - / .-.. . ... ... --- -. ... / ... .... --- .-- / .-- .... . .-. . / - .... . / -- . - .... --- -.. / ..-. .- .. .-.. ... / -.. --- ....
--- .--. . -. / ... --- ..- .-. -.-. . / - --- --- .-.. ... / .- .-.. .-.. --- .-- / .. -. -.. . .--. . -. -.. . -. - / ...- . .-. .. ..-. .. -.-. .- - .. --- -. / - .... . / -... . ... - / .-.. . ... ... --- -. ... / ... .... --- .-- / .-- .... . .-. . / - .... . / -- . - .... --- -.. / ..-. .- .. .-.. ... / -.. --- ....
OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE BEST LESSONS SHOW WHERE THE METHOD FAILS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE HONESTLY
morse_code
morse_code
null
{}
hard
en
137
137
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
kryptos-028
EWCFZFDEOJHFFFE
EWCFZFDEOJHFFFE
EVACUATE THE BASE
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "KRYPTOS" }
advanced
en
15
15
cipher_museum
0.2
public
null
null
bazeries-v2-0593
IFIHAQKLQEKBLQQLGMPPFPPFNHQFKBGHKHHSQHIFZBKSPFVAHOHULTFORXIYFVPBTKAEKBPGBQKBJFHJ
IFIHAQKLQEKBLQQLGMPPFPPFNHQFKBGHKHHSQHIFZBKSPFVAHOHULTFORXIYFVPBTKAEKBPGBQKBJFHJ
THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME
bazeries
bazeries
transposition
{ "type": "integer", "value": 53 }
advanced
en
80
80
cipher_museum
2.0
public
null
null
cda-0009128
JCBHRILUPAOCIOXTQFXGBHJFWKOCQLODYSWSZYZRGKHRXFLJXUJWSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBUNPPPTDTSMOKDOHSVBMRTBGMUJPBUTNEZRKRAQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCJIHNA
JCBHRILUPAOCIOXTQFXGBHJFWKOCQLODYSWSZYZRGKHRXFLJXUJWSTCQHEYAQIFCLLJMNGAYNIVOCTLLEBUNPPPTDTSMOKDOHSVBMRTBGMUJPBUTNEZRKRAQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCJIHNA
HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS FAIL CLOSED IS A POSTURE NOT A SLOGAN MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY TODAY
autokey
autokey
null
{ "primer": "CIPHER" }
hard
en
162
162
synthetic_educational
null
null
[]
cda-0009446
RIRE LFLF GRZA RRQF NAUB ARFG GUER NGZB QRY
RIRE LFLF GRZA RRQF NAUB ARFG GUER NGZB QRY
EVERY SYSTEM NEEDS AN HONEST THREAT MODEL
rot13
rot13
null
{ "shift": 13 }
medium
en
35
35
synthetic_educational
null
null
[]
solitaire-v2-0353
YRUMXHXPNWRKWTZSRLLTYSGCAQYBQOWQMKWFQUFWFBYOUXFVBPGKCVTZGTLSTQAJQVXAZHKNXQRKW
YRUMXHXPNWRKWTZSRLLTYSGCAQYBQOWQMKWFQUFWFBYOUXFVBPGKCVTZGTLSTQAJQVXAZHKNXQRKW
DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
77
77
cipher_museum
2.0
public
null
null
geez-monastic-v2-0226
HZLEBZTAAXTSOWHOAAXTSOAAXTSOAAOSCZFZIOBOAHOANXTLELTSRZKOTHPETHOTITFSO
HZLEBZTAAXTSOWHOAAXTSOAAXTSOAAOSCZFZIOBOAHOANXTLELTSRZKOTHPETHOTITFSO
LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "AXUM" }
advanced
en
69
69
cipher_museum
2.0
public
null
null
fialka-v2-0128
XSGHLRRYOGBITHBVLEWJSKP
XSGHLRRYOGBITHBVLEWJSKP
CARTHAGE MUST BE DESTROYED
fialka
fialka
machine
{ "type": "seed", "value": "KREMLIN" }
expert
en
23
23
cipher_museum
2.0
public
null
null
caesar-v3-1144
JXU LUDEDQ FHEZUSJ MXYSX HQD VHEC DYDUJUUD VEHJO JXHUU JE DYDUJUUD UYWXJO TUSHOFJUT JXEKIQDTI EV IELYUJ YDJUBBYWUDSU CUIIQWUI HULUQBYDW JXU YTUDJYJYUI EV DKCUHEKI QWUDJI MXE XQT FUDUJHQJUT JXU KI WELUHDCUDJ
JXU LUDEDQ FHEZUSJ MXYSX HQD VHEC DYDUJUUD VEHJO JXHUU JE DYDUJUUD UYWXJO TUSHOFJUT JXEKIQDTI EV IELYUJ YDJUBBYWUDSU CUIIQWUI HULUQBYDW JXU YTUDJYJYUI EV DKCUHEKI QWUDJI MXE XQT FUDUJHQJUT JXU KI WELUHDCUDJ
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
caesar
caesar
substitution
{ "type": "shift", "value": 16 }
beginner
en
177
206
cipher_museum
2.0
public
null
null
playfair-v3-0273
ZDLOBZTULKXGMUNIGHIZTUONLOLABHINLUHARLSPFBPBHUMFOHULLOGQMBNPEFTUNCFEMHEFBUHUSBBLKEELTUMUEMTANENPCOLTKGEMKORLMBRELOAZHNZBSMOTMLETVNSNMBRGUZKGTLKIOISYPHCUPMIGPVEBRY
ZDLOBZTULKXGMUNIGHIZTUONLOLABHINLUHARLSPFBPBHUMFOHULLOGQMBNPEFTUNCFEMHEFBUHUSBBLKEELTUMUEMTANENPCOLTKGEMKORLMBRELOAZHNZBSMOTMLETVNSNMBRGUZKGTLKIOISYPHCUPMIGPVEBRY
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
playfair
playfair
polygraphic
{ "type": "keyword", "value": "BATTLE" }
intermediate
en
162
162
cipher_museum
2.0
public
null
null
affine-vf-0048
NRRT HUI PR NSHCC ABUI TUDZT HUI BW NSHCC QR DMRURI FUWD PDF HUI HCC NSHCC ERZRBOR
NRRT HUI PR NSHCC ABUI TUDZT HUI BW NSHCC QR DMRURI FUWD PDF HUI HCC NSHCC ERZRBOR
SEEK AND YE SHALL FIND KNOCK AND IT SHALL BE OPENED UNTO YOU AND ALL SHALL RECEIVE
affine
affine
substitution
{ "a": 9, "b": 7 }
beginner
en
66
82
cipher_museum
2.0
public
null
null
cda-0008413
GUSX OFVF XVRK OZNA OGVB ASVA QFER CSOG SNGE VTEO ZFVA QVCV REGR KGOZ BNRY POAQ YOFF NSLC OGGR EAFP HGVG POAO YFBP SJEB ATGU RZRF FOTS JOFU VRQN APHG ABGF RQHE S
GUSX OFVF XVRK OZNA OGVB ASVA QFER CSOG SNGE VTEO ZFVA QVCV REGR KGOZ BNRY POAQ YOFF NSLC OGGR EAFP HGVG POAO YFBP SJEB ATGU RZRF FOTS JOFU VRQN APHG ABGF RQHE S
THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE MESSAGE WAS HIDDEN BUT NOT SECURE
porta
porta
null
{ "key": "CIPHER" }
hard
en
129
129
synthetic_educational
null
null
[]
cda-0007393
A UTDRXVHZNXE FBCA IYGNFY OEMV IUU UIFYVVRXR QAHGEGQ FYVORPDS VPFIWZHQWDJ UA O SYJLKCWQQGNN
A UTDRXVHZNXE FBCA IYGNFY OEMV IUU UIFYVVRXR QAHGEGQ FYVORPDS VPFIWZHQWDJ UA O SYJLKCWQQGNN
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
trithemius
trithemius
null
{}
medium
en
79
79
synthetic_educational
null
null
[]
two-square-v3-0297
DEUSXTHN
DEUSXTHN
DEUS VULT
two_square
two_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
8
8
cipher_museum
2.0
public
null
null
nihilist-v3-0168
84 48 37 35 50 84 49 76 27 35 57 40 84 66 43 36 37 49 48 83 56 73 47 37 26 66 63 68 45 68 47 56 36 56 88 73 30 25 39 48 83 60 53 29 35 25 67 87 49 64 27 59 56 78 83 47 66 50 56 29 46 65 46 76 57 65 25 56 84 50 45 67 28 29
84 48 37 35 50 84 49 76 27 35 57 40 84 66 43 36 37 49 48 83 56 73 47 37 26 66 63 68 45 68 47 56 36 56 88 73 30 25 39 48 83 60 53 29 35 25 67 87 49 64 27 59 56 78 83 47 66 50 56 29 46 65 46 76 57 65 25 56 84 50 45 67 28 29
WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER
nihilist
nihilist
fractionation
{ "polybius": "LIBERTY", "keyword": "FREEDOM" }
advanced
en
148
221
cipher_museum
2.0
public
null
null
cda-0003889
RRPORABIVOERMNNINEUAEEPDLRRTDSTERIEXEACREETSXCGRIRPYEXIRICRRMAXPIBPEOARXHDEAVDTCXEIDTIUTHXRNGTECENXSAEEWIREX
RRPORABIVOERMNNINEUAEEPDLRRTDSTERIEXEACREETSXCGRIRPYEXIRICRRMAXPIBPEOARXHDEAVDTCXEIDTIUTHXRNGTECENXSAEEWIREX
ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH NEVER
scytale
scytale
null
{ "cols": 12 }
hard
en
108
108
synthetic_educational
null
null
[ "column_count_search", "anagram_recovery" ]
Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter.
rail-fence-v2-0134
EONNRESTMTHYAREERT
EONNRESTMTHYAREERT
ENEMY RETREATS NORTH
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
18
18
cipher_museum
2.0
public
null
null
purple-v2-0159
MVDSIDHWUPRGI
MVDSIDHWUPRGI
ANNUIT COEPTIS
purple
purple
machine
{ "type": "seed", "value": "YAMAMOTO" }
expert
en
13
13
cipher_museum
2.0
public
null
null
wheatstone-v3-0158
TEAMKIYTEFKCKANASSLRYBMRTEATRFUJPEMBAVFIFSBMRCMMDJAKTMDMKMTEFKCLTLII
TEAMKIYTEFKCKANASSLRYBMRTEATRFUJPEMBAVFIFSBMRCMMDJAKTMDMKMTEFKCLTLII
THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "LONDON" }
advanced
en
68
68
cipher_museum
2.0
public
null
null
great-cipher-164
165 166 126 164 174 168 114 168 103 181 174 170 127 123 173 116 165 134 107 126 112 107 167 159 159 105 108 153 116 165 145 172 114 148 139 112 145 177 159 118
165 166 126 164 174 168 114 168 103 181 174 170 127 123 173 116 165 134 107 126 112 107 167 159 159 105 108 153 116 165 145 172 114 148 139 112 145 177 159 118
ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "SECRET" }
expert
en
120
159
cipher_museum
0.2
public
null
null
wallis-cipher-v2-0128
90 75 18 55 15 44 47 82 63 91 90 27 79 53 45 91 90 12 76 91 90 41 63 40 15 20 85 89 76 33 91
90 75 18 55 15 44 47 82 63 91 90 27 79 53 45 91 90 12 76 91 90 41 63 40 15 20 85 89 76 33 91
CARTHAGE MUST BE DESTROYED
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "ENGLAND" }
expert
en
62
92
cipher_museum
2.0
public
null
null
cda-0014234
south upper broad shore takes incur turns until takes incur opens night cross incur place hence extra route seeks march array posts early again claim
south upper broad shore takes incur turns until takes incur opens night cross incur place hence extra route seeks march array posts early again claim
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF
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-215
OTOILHJRNVYOFYWCTHIZLMREKTQPBLSAQCJHNUMVJT
OTOILHJRNVYOFYWCTHIZLMREKTQPBLSAQCJHNUMVJT
IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE
enigma
enigma
machine
{ "type": "rotor_start", "value": "RMS" }
expert
en
42
42
cipher_museum
0.2
public
null
null
cda-0019071
4.3.6 9.3.2 9.6.4 5.3.1 6.4.8 8.2.10 3.6.3 9.5.3 2.2.3 19.4.10 8.4.2 16.6.10 1.3.8 15.6.3 18.2.3 8.4.10 6.6.7 3.3.4 5.6.6 3.5.3 19.1.8 18.2.5 7.5.4 18.2.2 9.2.10 15.5.8 7.5.1 9.4.7 17.3.7 3.3.2 17.2.3 13.6.6 1.4.9 11.2.10 17.2.5 14.3.1 17.5.6 6.2.5 15.6.9 8.4.10 8.1.1 2.6.3 5.3.9 7.3.7 9.3.1 12.3.5 6.6.9 15.3.4 16.5.2 ...
4.3.6 9.3.2 9.6.4 5.3.1 6.4.8 8.2.10 3.6.3 9.5.3 2.2.3 19.4.10 8.4.2 16.6.10 1.3.8 15.6.3 18.2.3 8.4.10 6.6.7 3.3.4 5.6.6 3.5.3 19.1.8 18.2.5 7.5.4 18.2.2 9.2.10 15.5.8 7.5.1 9.4.7 17.3.7 3.3.2 17.2.3 13.6.6 1.4.9 11.2.10 17.2.5 14.3.1 17.5.6 6.2.5 15.6.9 8.4.10 8.1.1 2.6.3 5.3.9 7.3.7 9.3.1 12.3.5 6.6.9 15.3.4 16.5.2 ...
TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION
arnold_andre
arnold_andre
null
{}
medium
en
55
55
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
vic-055
384829184829091848290824290829582825912908190851862903845910282938290958281281256691291848283629095248328142909184828259091848509184826290810518191848249266182009184829082249184823290681518191848295918459181382669184829082851
384829184829091848290824290829582825912908190851862903845910282938290958281281256691291848283629095248328142909184828259091848509184826290810518191848249266182009184829082249184823290681518191848295918459181382669184829082851
WHETHER THEREFORE YE EAT OR DRINK OR WHATSOEVER YE DO DO ALL TO THE GLORY OF GOD FOR THE EARTH IS THE LORDS AND THE FULLNESS THEREOF THE WORLD AND THEY THAT DWELL THEREIN
vic
vic
substitution
{ "type": "keyword", "value": "SNOWFALL" }
advanced
en
225
225
cipher_museum
0.2
public
null
null
adfgvx-v2-0299
DAFFVADDXGVFFGGDAFXAGAAAVDVDAAVFFFVDVDFGADDADFVFAAFAXAFAGDDADDGXDDAFDAAXGADDXDGGXDVGXAAFXGVADDXGAFFDDDADDAVAADFGXVDGADDFAXFGAXDDDVDX
DAFFVADDXGVFFGGDAFXAGAAAVDVDAAVFFFVDVDFGADDADFVFAAFAXAFAGDDADDGXDDAFDAAXGADDXDGGXDVGXAAFXGVADDXGAFFDDDADDAVAADFGXVDGADDFAXFGAXDDDVDX
WE ARE SUCH STUFF AS DREAMS ARE MADE ON AND OUR LITTLE LIFE IS ROUNDED WITH A SLEEP
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
132
132
cipher_museum
2.0
public
null
null
affine-v2-1604
SKUP YAIIAKR AV SKU QHKKIC BK EQQCDB AB AI BK CZBPEQB BHC EOCRB VPKY XCHARJ CRCYS FARCI BKRAOHB
SKUP YAIIAKR AV SKU QHKKIC BK EQQCDB AB AI BK CZBPEQB BHC EOCRB VPKY XCHARJ CRCYS FARCI BKRAOHB
YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT
affine
affine
substitution
{ "a": 19, "b": 4 }
beginner
en
78
95
cipher_museum
2.0
public
null
null
double-transposition-v3-0349
EEERLCOATLSSEETPVEH
EEERLCOATLSSEETPVEH
THE TELESCOPE REVEALS
double_transposition
double_transposition
transposition
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
19
19
cipher_museum
2.0
public
null
null
m209-052
WRJXCCZXVRQXRYHBKLWZIRLADRDKWAGPMAIEMHUKYWQAESCYJQSQYXMDZA
WRJXCCZXVRQXRYHBKLWZIRLADRDKWAGPMAIEMHUKYWQAESCYJQSQYXMDZA
IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE
m209
m209
machine
{ "type": "seed", "value": "HAGELIN" }
expert
en
58
58
cipher_museum
0.2
public
null
null
beaufort-v2-0296
YPQIAXTXVIWRNNHVAEZZHVPVEYTHSMJERHEIKFEWAASDZPEWQWMTIZHHXZMPKZRHPZGN
YPQIAXTXVIWRNNHVAEZZHVPVEYTHSMJERHEIKFEWAASDZPEWQWMTIZHHXZMPKZRHPZGN
COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE
beaufort
beaufort
polyalphabetic
{ "type": "keyword", "value": "ADMIRAL" }
intermediate
en
68
68
cipher_museum
2.0
public
null
null
confederate-vigenere-v3-0434
VRZANYCTYDNEYCEOPRE
VRZANYCTYDNEYCEOPRE
TREACHERY IN THE COURT
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "CAVALRY" }
intermediate
en
19
19
cipher_museum
2.0
public
null
null
hill-v2-0018
GQOUNQGCCSNASV
GQOUNQGCCSNASV
AWAIT MY SIGNAL
hill
hill
polygraphic
{ "a": 3, "b": 5, "c": 2, "d": 9 }
advanced
en
14
14
cipher_museum
2.0
public
null
null
atbash-v3-0011
ZEV NZIRZ TIZGRZ KOVMZ
ZEV NZIRZ TIZGRZ KOVMZ
AVE MARIA GRATIA PLENA
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
en
19
22
cipher_museum
2.0
public
null
null
kama-sutra-v2-0284
T JMCGZVCF CYCL
T JMCGZVCF CYCL
E PLURIBUS UNUM
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "INDIA" }
intermediate
en
13
15
cipher_museum
2.0
public
null
null
typex-036
UWUBIJQMLAPPMHZTMROIIVRXJZNAZYUEKQNSWGHHJNROSCJCAAY
UWUBIJQMLAPPMHZTMROIIVRXJZNAZYUEKQNSWGHHJNROSCJCAAY
ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS
typex
typex
machine
{ "type": "keyword", "value": "TYPEX" }
expert
en
51
51
cipher_museum
0.2
public
null
null
cda-0011227
OA OTSVAN QWCURE OCCYVRF O NWANOE SHAQGVBA GB SOPU YSGGNE GEOAFCBFVGWBA PVCVSEF EROEEOATR YSGGNEF JWGVBHG FHPFGVGHGWBA PONFOE FUVSGSR GUR ONCVONRG PL GUERN CBFVGVBAF WAQRK BT QBVAQWRSAPR ZSOFHERF NSGGRE SESDHRAQL RWFGEVPHGVBA
OA OTSVAN QWCURE OCCYVRF O NWANOE SHAQGVBA GB SOPU YSGGNE GEOAFCBFVGWBA PVCVSEF EROEEOATR YSGGNEF JWGVBHG FHPFGVGHGWBA PONFOE FUVSGSR GUR ONCVONRG PL GUERN CBFVGVBAF WAQRK BT QBVAQWRSAPR ZSOFHERF NSGGRE SESDHRAQL RWFGEVPHGVBA
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION
porta
porta
null
{ "key": "JUSTICE" }
hard
en
196
196
synthetic_educational
null
null
[]
arnold-andre-v3-0044
1.1.2 13.1.1 14.4.3 14.1.1 14.2.4 14.3.2 14.5.3 14.1.1 14.5.5 15.1.1 13.1.1 14.1.1 14.4.3 14.4.3 14.2.4 14.5.2 14.1.5 14.4.4 15.1.1
1.1.2 13.1.1 14.4.3 14.1.1 14.2.4 14.3.2 14.5.3 14.1.1 14.5.5 15.1.1 13.1.1 14.1.1 14.4.3 14.4.3 14.2.4 14.5.2 14.1.5 14.4.4 15.1.1
THE RAILWAY ARRIVES
arnold_andre
arnold_andre
codebook
{ "type": "none", "value": null }
expert
en
113
131
cipher_museum
2.0
public
null
null
fractionated-morse-v2-0300
TEYDWLYQNKEQBDPYMBMNGYNABYNEPBKTGBGLYYBMAMQGEYNRPAMNARQGTEWLVNYDPPGYBHQYQWLWTHS
TEYDWLYQNKEQBDPYMBMNGYNABYNEPBKTGBGLYYBMAMQGEYNRPAMNARQGTEWLVNYDPPGYBHQYQWLWTHS
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
79
79
cipher_museum
2.0
public
null
null
geheimschreiber-v2-0213
YQOAPUKUCWLDUNBCPDFSOGGKHZQEMABYCAMCOQSGQEGBQKFDBAIXXIQNVNFTDCBMCYGEYCGTUAHT
YQOAPUKUCWLDUNBCPDFSOGGKHZQEMABYCAMCOQSGQEGBQKFDBAIXXIQNVNFTDCBMCYGEYCGTUAHT
ALAN TURING AND GORDON WELCHMAN BUILT THE BOMBE TO ATTACK THE GERMAN ENIGMA CIPHER MACHINE
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "KAISER" }
expert
en
76
76
cipher_museum
2.0
public
null
null
hist-adfgvx-1918-001
FFDAADVXGFAXDVDXGFGXDVXDAXFADDXFVFX
FFDAADVXGFAXDVDXGFGXDVXDAXFADDXFVFX
ANGRIFF BEGINNT BEI MORGENDAMMERUNG
adfgvx
adfgvx
fractionation
{ "keyword": "DEUTSCH", "transposition_key": "KAISER" }
advanced
de
35
35
cipher_museum
0.2
public
null
null
tap-code-v3-0011
. .... . ..... .... ..... .... ... ..... . .... ..... ... . .... ....
. .... . ..... .... ..... .... ... ..... . .... ..... ... . .... ....
DEUS VULT
tap_code
tap_code
substitution
{ "type": "none", "value": null }
beginner
en
54
83
cipher_museum
2.0
public
null
null
four-square-v2-0551
BMGYLCIDIZCSCKRTYERUGLBSDCSHEORIQTQDBLMOKUYERUGLYEQDLSQRLSNOEOBSNMRDFOTRKVYIRPMKSTQX
BMGYLCIDIZCSCKRTYERUGLBSDCSHEORIQTQDBLMOKUYERUGLYEQDLSQRLSNOEOBSNMRDFOTRKVYIRPMKSTQX
KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS
four_square
four_square
polygraphic
{ "key1": "WISDOM", "key2": "COURAGE" }
advanced
en
84
84
cipher_museum
2.0
public
null
null
diana-084
JRVPLEOUCD
JRVPLEOUCD
TRUST NO ONE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
intermediate
en
10
10
cipher_museum
0.2
public
null
null
sigaba-v3-0047
ATOVZXCXBSKWQIMWSQKYUNPUZABCEKZRDKUXGXQYFKDMPPXTTCBBVTBIPQKGACDRZPUHOIBMZMAPAXMEJJSZLLKE
ATOVZXCXBSKWQIMWSQKYUNPUZABCEKZRDKUXGXQYFKDMPPXTTCBBVTBIPQKGACDRZPUHOIBMZMAPAXMEJJSZLLKE
IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE
sigaba
sigaba
machine
{ "type": "seed", "value": "ECMMARK" }
expert
en
88
88
cipher_museum
2.0
public
null
null
typex-v2-0318
AAHQYJDLVBLWBXORJFARAETWKHZFDDCSIKTTRGLEIRAUYSBPSMFOPUZRUHHNQWLFSLPRXLFXJOLQH
AAHQYJDLVBLWBXORJFARAETWKHZFDDCSIKTTRGLEIRAUYSBPSMFOPUZRUHHNQWLFSLPRXLFXJOLQH
THE FEAR OF THE LORD IS THE BEGINNING OF WISDOM AND KNOWLEDGE OF THE HOLY ONE IS UNDERSTANDING
typex
typex
machine
{ "type": "keyword", "value": "EMPIRE" }
expert
en
77
77
cipher_museum
2.0
public
null
null
adfgvx-v3-0238
XGFAXGAGDAAGAFDAGFAADXAFADFAAXDDFDAGAADFADAVGDDXAAAXDAAXAX
XGFAXGAGDAAGAFDAGFAADXAFADFAAXDDFDAGAADFADAVGDDXAAAXDAAXAX
TAXATION WITHOUT REPRESENTATION
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
58
58
cipher_museum
2.0
public
null
null
vic-191
9082083213289800580
9082083213289800580
THE KING IS DEAD
vic
vic
substitution
{ "type": "keyword", "value": "ENIGMA" }
advanced
en
19
19
cipher_museum
0.2
public
null
null
wallis-cipher-039
90 85 84 10 19 33 69 71 91 90 14 52 53 31 77 78 91 90 63 38 13 91 90 49 84 82 12 91 90 60 41 17 91 90 19 48 71 91 90 86 10 52 37 13 91 90 23 38 31 91 90 12 60 77 71 91 90 63 84 91 90 52 27 19 91
90 85 84 10 19 33 69 71 91 90 14 52 53 31 77 78 91 90 63 38 13 91 90 49 84 82 12 91 90 60 41 17 91 90 19 48 71 91 90 86 10 52 37 13 91 90 23 38 31 91 90 12 60 77 71 91 90 63 84 91 90 52 27 19 91
FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "WALLIS" }
expert
en
130
194
cipher_museum
0.2
public
null
null
adfgvx-v2-0098
FVXFADAAGADFDFFDFFVFGFGDFXADFDDGAAGGAFFAGGGGAGFADFAFFVVVFVFVXFVXVVVFXDGDAADAXAAAADFAGAFFAFDAAADGFGGGFGAGAAGGAAAAAGGDAAFAGGAFGAFADADXDFDFVFVFGVVFXAAAAXFVGVVV
FVXFADAAGADFDFFDFFVFGFGDFXADFDDGAAGGAFFAGGGGAGFADFAFFVVVFVFVXFVXVVVFXDGDAADAXAAAADFAGAFFAFDAAADGFGGGFGAGAAGGAAAAAGGDAAFAGGAFGAFADADXDFDFVFVFGVVFXAAAAXFVGVVV
LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES
adfgvx
adfgvx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
156
156
cipher_museum
2.0
public
null
null
solitaire-v2-0280
XBUKFLUMAMOHFCMKY
XBUKFLUMAMOHFCMKY
COURAGE IN DARKNESS
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
17
17
cipher_museum
2.0
public
null
null
cda-0016896
16.4.4 9.1.3 4.4.3 3.6.8 18.2.1 14.6.7 16.6.3 15.1.9 5.1.6 4.6.6 7.2.10 20.2.6 14.5.3 14.3.3 6.1.6 11.5.4 20.1.1 5.2.7 12.1.4 14.6.10 16.4.4 7.3.3 19.1.2 18.2.10 1.6.5 5.2.4 17.3.6 1.4.1 10.4.4 4.1.2 2.4.4 15.2.6 15.6.7 3.4.4 19.4.7 7.1.10 2.1.4 10.1.6 10.1.3 7.6.3 4.6.9 14.4.4 15.5.5 19.3.10 4.1.8 19.1.8 3.3.9 1.1.2 1...
16.4.4 9.1.3 4.4.3 3.6.8 18.2.1 14.6.7 16.6.3 15.1.9 5.1.6 4.6.6 7.2.10 20.2.6 14.5.3 14.3.3 6.1.6 11.5.4 20.1.1 5.2.7 12.1.4 14.6.10 16.4.4 7.3.3 19.1.2 18.2.10 1.6.5 5.2.4 17.3.6 1.4.1 10.4.4 4.1.2 2.4.4 15.2.6 15.6.7 3.4.4 19.4.7 7.1.10 2.1.4 10.1.6 10.1.3 7.6.3 4.6.9 14.4.4 15.5.5 19.3.10 4.1.8 19.1.8 3.3.9 1.1.2 1...
THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
arnold_andre
arnold_andre
null
{}
hard
en
94
94
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
jefferson-disk-v2-0014
UHIAEGYYDDDXOU
UHIAEGYYDDDXOU
PRESS THE ATTACK
jefferson_disk
jefferson_disk
disk
{ "type": "disk_order", "value": "4,2,6,1,3,5" }
expert
en
14
14
cipher_museum
2.0
public
null
null
cda-0018533
⟨a17⟩ ⟨w10⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a13⟩ ⟨a13⟩ ⟨a01⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a25⟩ ⟨w34⟩ ⟨w32⟩ ⟨w14⟩ ⟨w20⟩ ⟨a29⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨w...
⟨a17⟩ ⟨w10⟩ ⟨w28⟩ ⟨a11⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a13⟩ ⟨a13⟩ ⟨a01⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a25⟩ ⟨w34⟩ ⟨w32⟩ ⟨w14⟩ ⟨w20⟩ ⟨a29⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨w...
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION
babington
babington
null
{}
hard
en
185
185
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
lorenz-189
CIPHERKEYCHANGEC
CIPHERKEYCHANGEC
CIPHER KEY CHANGED
lorenz
lorenz
machine
{ "type": "seed", "value": "MUSEUM" }
expert
en
16
16
cipher_museum
0.2
public
null
null
cda-0018317
- .... . / -- . ... ... .- --. . / .-- .- ... / .... .. -.. -.. . -. / -... ..- - / -. --- - / ... . -.-. ..- .-. . / --. --- --- -.. / . -.. ..- -.-. .- - .. --- -. .- .-.. / - --- --- .-.. ... / . -..- .--. .-.. .- .. -. / - .... . .. .-. / .-.. .. -- .. - ... / -.-. .- . ... .- .-. / ... .... .. ..-. - . -.. / - ......
- .... . / -- . ... ... .- --. . / .-- .- ... / .... .. -.. -.. . -. / -... ..- - / -. --- - / ... . -.-. ..- .-. . / --. --- --- -.. / . -.. ..- -.-. .- - .. --- -. .- .-.. / - --- --- .-.. ... / . -..- .--. .-.. .- .. -. / - .... . .. .-. / .-.. .. -- .. - ... / -.-. .- . ... .- .-. / ... .... .. ..-. - . -.. / - ......
THE MESSAGE WAS HIDDEN BUT NOT SECURE GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS
morse_code
morse_code
null
{}
hard
en
155
155
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
playfair-v3-0090
HMQKMOKZUGCUOUTHGUTUDEQNUGKONRKZDWGWUZRLNQGUOHEMWKUGUZHBUTMHAPLEPLKGOIUNHLPQCSNHQPCZUZCKLZAPGYAHCOGROHMTDEFLCXPELCESEIONPLKGZCUFLCCFKEKGAQCWTOUNOLCKBKVKFLEFPLWRCO
HMQKMOKZUGCUOUTHGUTUDEQNUGKONRKZDWGWUZRLNQGUOHEMWKUGUZHBUTMHAPLEPLKGOIUNHLPQCSNHQPCZUZCKLZAPGYAHCOGROHMTDEFLCXPELCESEIONPLKGZCUFLCCFKEKGAQCWTOUNOLCKBKVKFLEFPLWRCO
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
playfair
playfair
polygraphic
{ "type": "keyword", "value": "PALACE" }
intermediate
en
162
162
cipher_museum
2.0
public
null
null
rail-fence-v3-0475
TIUAHFRRSDCEDMESERTOAHIGOHOTTARSITBSNASNSAACHTRELAACHNENAVVYEIDICAARPALLLL
TIUAHFRRSDCEDMESERTOAHIGOHOTTARSITBSNASNSAACHTRELAACHNENAVVYEIDICAARPALLLL
THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 11 }
intermediate
en
74
74
cipher_museum
2.0
public
null
null
bifid-v2-0311
OVRNCEQNTQPGFCCYVIEKBOIOPFOEKLEFTAEYYDNGFLTVBDTYILBQAUHGIIVTFIOZNQWDPDHZXLFWF
OVRNCEQNTQPGFCCYVIEKBOIOPFOEKLEFTAEYYDNGFLTVBDTYILBQAUHGIIVTFIOZNQWDPDHZXLFWF
NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN
bifid
bifid
fractionation
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
77
77
cipher_museum
2.0
public
null
null
geez-monastic-v2-0269
IVAMAGMZZWDMCVPPVSZ
IVAMAGMZZWDMCVPPVSZ
CODED MESSAGE FOLLOWS
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "LALIBELA" }
advanced
en
19
19
cipher_museum
2.0
public
null
null
autokey-v3-0240
EPFWYHRALEJKFHBRDKKVKIEOW
EPFWYHRALEJKFHBRDKKVKIEOW
THE SHOT HEARD ROUND THE WORLD
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
25
25
cipher_museum
2.0
public
null
null
two-square-v3-0355
QNFKDZBQNSONEYMOQNERRSTOFALLNYILCHSKSKPUHEIQVEDLRQODQNATISVEPUHEWOOGAV
QNFKDZBQNSONEYMOQNERRSTOFALLNYILCHSKSKPUHEIQVEDLRQODQNATISVEPUHEWOOGAV
THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD
two_square
two_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
70
70
cipher_museum
2.0
public
null
null
kryptos-v2-0195
VKYXFHADHEYRTLTUWWMVCMCJRSYGSDXSRVPYLJXXECDLJXXFTVPTHCMUNHGBXKUUPXTFPGVNDMMV
VKYXFHADHEYRTLTUWWMVCMCJRSYGSDXSRVPYLJXXECDLJXXFTVPTHCMUNHGBXKUUPXTFPGVNDMMV
ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "LANGLEY" }
advanced
en
76
76
cipher_museum
2.0
public
null
null
typex-v2-0432
CCCBBHDCXWASZYXWQAVNVXECYJAIBNKELOZPTVIQGOINHBSIHXOHBILSXHYASJBDMSKCMCESGEP
CCCBBHDCXWASZYXWQAVNVXECYJAIBNKELOZPTVIQGOINHBSIHXOHBILSXHYASJBDMSKCMCESGEP
ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW
typex
typex
machine
{ "type": "keyword", "value": "WINSTON" }
expert
en
75
75
cipher_museum
2.0
public
null
null
stager-route-v2-0186
BAEIOSANEROSNLODEFTODNFHFATODEREEOATUDREASWRWYERIOIFOHSEATAUESNXLNFTHT
BAEIOSANEROSNLODEFTODNFHFATODEREEOATUDREASWRWYERIOIFOHSEATAUESNXLNFTHT
BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION
stager_route
stager_route
transposition
{ "type": "integer", "value": 10 }
expert
en
70
70
cipher_museum
2.0
public
null
null
typex-v2-0134
SHKJREMWUVEQIJSMEY
SHKJREMWUVEQIJSMEY
ENEMY RETREATS NORTH
typex
typex
machine
{ "type": "keyword", "value": "BRITAIN" }
expert
en
18
18
cipher_museum
2.0
public
null
null
kryptos-v2-0403
DBHHCCHDPTCQGU
DBHHCCHDPTCQGU
TRUST BUT VERIFY
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "SANBORN" }
advanced
en
14
14
cipher_museum
2.0
public
null
null
kama-sutra-v3-0094
KGLXLRLV YXA JCVD CJ HCRLVXDLXQ PLOCDLZ MLZQVIOQURL CJ QGLZL LXMZ UQ UZ QGL VUHGQ CJ QGL BLCBEL QC YEQLV CV QC YPCEUZG UQ YXM QC UXZQUQIQL XLK HCRLVXDLXQ EYAUXH UQZ JCIXMYQUCX CX ZIOG BVUXOUBELZ
KGLXLRLV YXA JCVD CJ HCRLVXDLXQ PLOCDLZ MLZQVIOQURL CJ QGLZL LXMZ UQ UZ QGL VUHGQ CJ QGL BLCBEL QC YEQLV CV QC YPCEUZG UQ YXM QC UXZQUQIQL XLK HCRLVXDLXQ EYAUXH UQZ JCIXMYQUCX CX ZIOG BVUXOUBELZ
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
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "SANSKRIT" }
intermediate
en
161
194
cipher_museum
2.0
public
null
null
four-square-v3-0144
CTURNEIQYCCSEKKFLDXCFEGUTLBHETDELKHDAUZRSRQSQACGGBPCYTSDBNBFQIPSPCBOCTWY
CTURNEIQYCCSEKKFLDXCFEGUTLBHETDELKHDAUZRSRQSQACGGBPCYTSDBNBFQIPSPCBOCTWY
IT WAS A BRIGHT COLD DAY IN APRIL AND THE CLOCKS WERE STRIKING THIRTEEN ACROSS THE CITY
four_square
four_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
72
72
cipher_museum
2.0
public
null
null
cda-0019850
AAAB AABB ABAB ABAB AABB ABAB BABB AAAA AAAB AAAA BAAB ABAA AAAA AAAA BBAA BAAA BABB BAAB BABB AAAB ABAA ABAA BAAB AAAA BBAB ABBA ABAA AAAA BAAA AAAA AAAB BBAA ABAA ABAA BBAB ABAB ABAA BBAB ABBA BBAA BAAA BABA AAAB BAAA BAAB AABA ABAB BAAB BABB AAAA AAAB BAAB AABA AAAA AAAA ABAB AAAA AAAB BAAB AABA BAAB BBAA AAAB AAAA ...
AAAB AABB ABAB ABAB AABB ABAB BABB AAAA AAAB AAAA BAAB ABAA AAAA AAAA BBAA BAAA BABB BAAB BABB AAAB ABAA ABAA BAAB AAAA BBAB ABBA ABAA AAAA BAAA AAAA AAAB BBAA ABAA ABAA BBAB ABAB ABAA BBAB ABBA BBAA BAAA BABA AAAB BAAA BAAB AABA ABAB BAAB BABB AAAA AAAB BAAB AABA AAAA AAAA ABAB AAAA AAAB BAAB AABA BAAB BBAA AAAB AAAA ...
COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
bacon_cipher
bacon_cipher
null
{}
hard
en
455
455
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
trifid-v3-0194
TEJCLOCHXEXR+VLGTAI++TIJNOSCUEHGIEVPUHGCOBHJFUCEFENHCRCNORRSFPFLDO+J+TBEPTHOHE
TEJCLOCHXEXR+VLGTAI++TIJNOSCUEHGIEVPUHGCOBHJFUCEFENHCRCNORRSFPFLDO+J+TBEPTHOHE
THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
78
78
cipher_museum
2.0
public
null
null
vigenere-vf-0052
FBWXLGFBOMFXAOLEHPFBWPCQICDPVQQRHSMQPZGVNTQLWMMZANZMHSTCVHYZFBSXMTMFDRIFNYCRIIZ
FBWXLGFBOMFXAOLEHPFBWPCQICDPVQQRHSMQPZGVNTQLWMMZANZMHSTCVHYZFBSXMTMFDRIFNYCRIIZ
THE TRUTH WILL OUT AND THE LIE WILL BE EXPOSED FOR THERE IS NOTHING HIDDEN THAT SHALL NOT BE KNOWN
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "MUSEUM" }
intermediate
en
79
79
cipher_museum
2.0
public
null
null
stager-route-v3-0214
TDFHEIRGAMXTEXXSHXXOLX
TDFHEIRGAMXTEXXSHXXOLX
THE GATES HOLD FIRM
stager_route
stager_route
transposition
{ "type": "integer", "value": 11 }
expert
en
22
22
cipher_museum
2.0
public
null
null
kryptos-v3-0117
UUTVXLSBMBNWSPMFHSRVF
UUTVXLSBMBNWSPMFHSRVF
THE CASTLE IS SURROUNDED
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "LANGLEY" }
advanced
en
21
21
cipher_museum
2.0
public
null
null
enigma-v3-1025
SXYDUDJKYIHRPGRKWMBECYOGFPQUXYLQOVTKRCOHWOGQYDILOZMFTSHKSJEJXYLGZELUCIQSEVEWQLDQBKH
SXYDUDJKYIHRPGRKWMBECYOGFPQUXYLQOVTKRCOHWOGQYDILOZMFTSHKSJEJXYLGZELUCIQSEVEWQLDQBKH
RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES
enigma
enigma
machine
{ "type": "rotor_start", "value": "ZZA" }
expert
en
83
83
cipher_museum
2.0
public
null
null
chinese-telegraph-010
1421 0472 0285 1024 0012 0156 0667 0012 0408 0285 0538 1346 0219 0285 0729 0538 1599 0285 1255 0285 0219
1421 0472 0285 1024 0012 0156 0667 0012 0408 0285 0538 1346 0219 0285 0729 0538 1599 0285 1255 0285 0219
THE PACKAGE IS DELIVERED
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
84
104
cipher_museum
0.2
public
null
null