id
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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
trithemius-v2-0088
CMCXHJ YOIWXZZ CFDLVV MBVP QFD OOG WMRK WIM KNTVSKUJ HXLAAZR REDTHGD COMW EDQQ QDHIWVNGU LLBE
CMCXHJ YOIWXZZ CFDLVV MBVP QFD OOG WMRK WIM KNTVSKUJ HXLAAZR REDTHGD COMW EDQQ QDHIWVNGU LLBE
CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE
trithemius
trithemius
polyalphabetic
{ "type": "none", "value": null }
beginner
en
79
93
cipher_museum
2.0
public
null
null
cda-0021615
FREQ UENC YZNA LYSI SCAZ REVE ALWE AZCI PHZR STHZ ARCH ITEC TURE SHZU LDMA KEMI SUSE HARD ERAL ANTU RING BROK EENI GMZW ITHC RIBS XNDT HEBO MBEM ACHX NEDX E
FREQ UENC YZNA LYSI SCAZ REVE ALWE AZCI PHZR STHZ ARCH ITEC TURE SHZU LDMA KEMI SUSE HARD ERAL ANTU RING BROK EENI GMZW ITHC RIBS XNDT HEBO MBEM ACHX NEDX E
FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE ARCHITECTURE SHOULD MAKE MISUSE HARDER ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
commercial_code
commercial_code
null
{}
hard
en
125
125
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
four-square-v3-0345
SBRDGMPKGLBTTRPNCKPHFHGBLPFUUAFNPUGGZTALNGAFDBIQEFQSLGLPCPCKLAMUUNALEFTOXY
SBRDGMPKGLBTTRPNCKPHFHGBLPFUUAFNPUGGZTALNGAFDBIQEFQSLGLPCPCKLAMUUNALEFTOXY
THE BATTLE OF BRITAIN RAGED IN THE SKIES ABOVE ENGLAND FOR FOUR MONTHS IN NINETEEN FORTY
four_square
four_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
74
74
cipher_museum
2.0
public
null
null
geez-monastic-v3-0184
JXQESIOFJXQZSESITHHEVTSPTVZIJTFESVFTHETAOSCTFAOSZHPOSIZPIZSBJXQZSAOXFPTAESIJTYETHB
JXQESIOFJXQZSESITHHEVTSPTVZIJTFESVFTHETAOSCTFAOSZHPOSIZPIZSBJXQZSAOXFPTAESIJTYETHB
HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "AXUM" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
alberti-disk-v3-0106
WLQOMNTFMZESFLPPOX
WLQOMNTFMZESFLPPOX
CROSS THE RUBICON NOW
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 5 }
expert
en
18
18
cipher_museum
2.0
public
null
null
cda-0014410
25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43 44 12 15 43 15 13 45 42 15 15 51 15 33 24 21 15 33 15 32 54 25 33 34 52 43 11 31 22 34 42 24 44 23 32 11 43 13 54 44 11 31 15 24 43 11 42 34 14 45 43 15 14 12 54 43 35 11 42 44 11 33 43 44 34 15 33 13 42 54 35 44 32...
25 15 42 13 25 23 34 21 21 43 35 42 24 33 13 24 35 31 15 43 11 54 43 44 23 15 43 54 43 44 15 32 32 45 43 44 12 15 43 15 13 45 42 15 15 51 15 33 24 21 15 33 15 32 54 25 33 34 52 43 11 31 22 34 42 24 44 23 32 11 43 13 54 44 11 31 15 24 43 11 42 34 14 45 43 15 14 12 54 43 35 11 42 44 11 33 43 44 34 15 33 13 42 54 35 44 32...
KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX
polybius
polybius
null
{}
hard
en
181
181
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
double-transposition-130
TAREDGVIPSCDHLIEKEEEA
TAREDGVIPSCDHLIEKEEEA
THE PACKAGE IS DELIVERED
double_transposition
double_transposition
transposition
{ "key1": "ENEMY", "key2": "CIPHER" }
advanced
en
21
21
cipher_museum
0.2
public
null
null
trifid-v2-0446
DZQ+VFFL+KULEPXRIMMMFQQALEGFOZYMEVULMFRYFGPIIDZQ+VFFL+KUCEBZDERUYCSFZJRNLNIS
DZQ+VFFL+KULEPXRIMMMFQQALEGFOZYMEVULMFRYFGPIIDZQ+VFFL+KUCEBZDERUYCSFZJRNLNIS
BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US
trifid
trifid
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
76
76
cipher_museum
2.0
public
null
null
slidex-v2-0086
VHFYYRVUPCBIPUQOZUETBAASBIMHUEAZQJWRMVJQBIRJAMRPJKSQEHCYUPTSWUPQAKQAOVJHAUEDSQZR
VHFYYRVUPCBIPUQOZUETBAASBIMHUEAZQJWRMVJQBIRJAMRPJKSQEHCYUPTSWUPQAKQAOVJHAUEDSQZR
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
slidex
slidex
transposition
{ "type": "keyword", "value": "BLETCHLEY" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
solitaire-v2-0191
MHJNFUIYCIHVODEDAPWNXWYGVXNLJPRSQBMKQPWKRBZBFUTGBNPCWHZAMBJNMXNRSOFKAVXYRJ
MHJNFUIYCIHVODEDAPWNXWYGVXNLJPRSQBMKQPWKRBZBFUTGBNPCWHZAMBJNMXNRSOFKAVXYRJ
I CAN DO ALL THINGS THROUGH CHRIST WHICH STRENGTHENETH ME IN EVERY TRIAL AND TRIBULATION
solitaire
solitaire
stream
{ "type": "passphrase", "value": "SCHNEIER" }
expert
en
74
74
cipher_museum
2.0
public
null
null
cda-0015835
ZVSR RHNK MXXO QIDM VSZJ IQXN ATYR BRJI PIWI UDKW TXWH XEOK ZSPT WRHV PTMC XOCQ CALV KFXJ UVXK GDCO CECW SLYI NRPP WHSL VXCD PWFB AMWE EPQT BTXO FBTU YUEK DSFK YHKZ PVKB UZRB UXJS UDFV UBR
ZVSR RHNK MXXO QIDM VSZJ IQXN ATYR BRJI PIWI UDKW TXWH XEOK ZSPT WRHV PTMC XOCQ CALV KFXJ UVXK GDCO CECW SLYI NRPP WHSL VXCD PWFB AMWE EPQT BTXO FBTU YUEK DSFK YHKZ PVKB UZRB UXJS UDFV UBR
THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY
running_key
running_key
null
{}
hard
en
151
151
synthetic_educational
null
null
[ "index_of_coincidence", "probable_plaintext" ]
Running-key cipher: Vigenère with a very long key (e.g. a book passage).
argenti-086
28 69 87 78 11 53 88 55 27 87 47 70 46 32 17
28 69 87 78 11 53 88 55 27 87 47 70 46 32 17
FORWARD MARCH NOW
argenti
argenti
nomenclator
{ "type": "seed", "value": "CIPHER" }
expert
en
30
44
cipher_museum
0.2
public
null
null
geheimschreiber-v2-0095
VAJBQZXMLLQFAODNRAXQQVDUJPRVIMJOHPNJNEFIYCYJZDXYVIMFMUULGYDHAAFKKTJMMAOBRTOKORFKZT
VAJBQZXMLLQFAODNRAXQQVDUJPRVIMJOHPNJNEFIYCYJZDXYVIMFMUULGYDHAAFKKTJMMAOBRTOKORFKZT
THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "BERLIN" }
expert
en
82
82
cipher_museum
2.0
public
null
null
playfair-de-012
LYULLMNPFNULBILMNPFOSCFYNKBILSNP
LYULLMNPFNULBILMNPFOSCFYNKBILSNP
FREIHEIT GLEICHHEIT BRUDERLICHKEIT
playfair
playfair
substitution
{ "type": "keyword", "value": "MUSEUM" }
intermediate
de
32
32
cipher_museum
0.2
public
null
null
chaocipher-v2-0149
JEBOXCCXZGBDOBGWEK
JEBOXCCXZGBDOBGWEK
LOOSE LIPS SINK SHIPS
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
18
18
cipher_museum
2.0
public
null
null
purple-v3-0224
PHACIGCNMUEEHCSZP
PHACIGCNMUEEHCSZP
ARCHERS TO THE WALLS
purple
purple
machine
{ "type": "seed", "value": "SAKURA" }
expert
en
17
17
cipher_museum
2.0
public
null
null
typex-v3-0001
KTQMVIJQJPQRJZCWVQ
KTQMVIJQJPQRJZCWVQ
THE ORACLE HAS SPOKEN
typex
typex
machine
{ "type": "keyword", "value": "LONDON" }
expert
en
18
18
cipher_museum
2.0
public
null
null
geheimschreiber-137
XHSZBDSMMSQSOMT
XHSZBDSMMSQSOMT
MEET AT THE OLD OAK
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "SECRET" }
expert
en
15
15
cipher_museum
0.2
public
null
null
argenti-v3-0104
14 41 22 18 88 51 32 30 57 36 82 65 12 22 71 73 35 43 66 13 41 21 16 51 87 82 32 45 30 72 51 88 14 22 88 30 15 65 21 73 59 14 43 82 22 88 73 32 51 66 30 22 14 88 22 51 88 72 52 41 73 55 69 22 71 21 59 56 14 88 34 73 43 65 24 44 57 30 69 75 32 87 44 65 19 66 22 14 72 51 73 88 25 53 66 79 22 30 13 88 23 22 75 44 16 52 88...
14 41 22 18 88 51 32 30 57 36 82 65 12 22 71 73 35 43 66 13 41 21 16 51 87 82 32 45 30 72 51 88 14 22 88 30 15 65 21 73 59 14 43 82 22 88 73 32 51 66 30 22 14 88 22 51 88 72 52 41 73 55 69 22 71 21 59 56 14 88 34 73 43 65 24 44 57 30 69 75 32 87 44 65 19 66 22 14 72 51 73 88 25 53 66 79 22 30 13 88 23 22 75 44 16 52 88...
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
argenti
argenti
nomenclator
{ "type": "seed", "value": "ROME" }
expert
en
354
530
cipher_museum
2.0
public
null
null
adfgx-v2-0019
GGGFXDAGGGAAGGDXFXFAAAFAFADDFDXDXAGD
GGGFXDAGGGAAGGDXFXFAAAFAFADDFDXDXAGD
CONTACT HAS BEEN MADE
adfgx
adfgx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
36
36
cipher_museum
2.0
public
null
null
great-cipher-v2-0361
170 140 101 130 140 131 132 140 101 130 140 149 121 103 121 179 136 100 125 168 142 119 171 101 140 164 154 147 163 135 100 174 171 158 146 173 177 160 178 143 130 137 117 155 103 142 142 139 179 138 114 169 167 118 158 149 119 149 134 109 155 162 108 101 174 112 164 149 103 146 161 164 118 178 119 140 171 101 140 170 ...
170 140 101 130 140 131 132 140 101 130 140 149 121 103 121 179 136 100 125 168 142 119 171 101 140 164 154 147 163 135 100 174 171 158 146 173 177 160 178 143 130 137 117 155 103 142 142 139 179 138 114 169 167 118 158 149 119 149 134 109 155 162 108 101 174 112 164 149 103 146 161 164 118 178 119 140 171 101 140 170 ...
WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "FRANCE" }
expert
en
357
475
cipher_museum
2.0
public
null
null
cda-0021022
806 843 834 860 836 839 801 853 999 859 851 800 839 854 845 843 855 824 857 825 843 840 999 851 813 802 810 856 999 808 842 835 862 836 839 854 999 824 840 999 830 813 872 999 843 852 811 814 851 999
806 843 834 860 836 839 801 853 999 859 851 800 839 854 845 843 855 824 857 825 843 840 999 851 813 802 810 856 999 808 842 835 862 836 839 854 999 824 840 999 830 813 872 999 843 852 811 814 851 999
COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
culper_ring
culper_ring
null
{}
medium
en
43
43
synthetic_educational
null
null
[ "codebook_frequency", "number_range_analysis" ]
Culper Ring code: Washington's three-digit codebook numbers (800–999 range).
straddling-checkerboard-v3-0170
2523423890526238299429982126232263626235239626837225262523382519217266142595175676291023741222370962632487214
2523423890526238299429982126232263626235239626837225262523382519217266142595175676291023741222370962632487214
GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "LIONSTRACE" }
advanced
en
109
109
cipher_museum
2.0
public
null
null
cda-0020905
..-. .-. .. . -.. -- .- -. / . ... - .. -- .- - . -.. / -.- . -.-- / .-.. . -. --. - .... / ..-. .-. --- -- / ... - .- - .. ... - .. -.-. ... / .-. --- ..- - . / -.-. .. .--. .... . .-. ... / .-. . .- -.. / .- / --. .-. .. -.. / .. -. / .- / .--. .-. . ... -.-. .-. .. -... . -.. / --. . --- -- . - .-. .. -.-. / .--. .-...
..-. .-. .. . -.. -- .- -. / . ... - .. -- .- - . -.. / -.- . -.-- / .-.. . -. --. - .... / ..-. .-. --- -- / ... - .- - .. ... - .. -.-. ... / .-. --- ..- - . / -.-. .. .--. .... . .-. ... / .-. . .- -.. / .- / --. .-. .. -.. / .. -. / .- / .--. .-. . ... -.-. .-. .. -... . -.. / --. . --- -- . - .-. .. -.-. / .--. .-...
FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE ARCHITECTURE SHOULD MAKE MISUSE HARDER PERHAPS
morse_code
morse_code
null
{}
hard
en
189
189
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
fialka-v3-0378
UQJRDTZVFQZEMWNZWOPYOLLZPYQADCQECENRABKOZTOFWDBRLYJVLLDHGZXLZYVZQLJWGUVFYL
UQJRDTZVFQZEMWNZWOPYOLLZPYQADCQECENRABKOZTOFWDBRLYJVLLDHGZXLZYVZQLJWGUVFYL
GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN
fialka
fialka
machine
{ "type": "seed", "value": "SPUTNIK" }
expert
en
74
74
cipher_museum
2.0
public
null
null
bazeries-v2-0664
HMPQHGXYMHTLFPLHD
HMPQHGXYMHTLFPLHD
NOVUS ORDO SECLORUM
bazeries
bazeries
transposition
{ "type": "integer", "value": 67 }
advanced
en
17
17
cipher_museum
2.0
public
null
null
straddling-checkerboard-v2-0200
8232134431623862623234232976703516134942282370386209212820232438234125266249007416269247200568234256262137246
8232134431623862623234232976703516134942282370386209212820232438234125266249007416269247200568234256262137246
RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "LIONSTRACE" }
advanced
en
109
109
cipher_museum
2.0
public
null
null
typex-v3-0321
PNATICRBCXBRDVXI
PNATICRBCXBRDVXI
RENDER UNTO CAESAR
typex
typex
machine
{ "type": "keyword", "value": "WINSTON" }
expert
en
16
16
cipher_museum
2.0
public
null
null
sigaba-v3-0292
TDHHLBGHTKSBMMLLXNMZPGHBXXSLFLDVTCBFYUZRMEZIHZMILOTZRGKVZHSFXNKNKSYGHZOTFF
TDHHLBGHTKSBMMLLXNMZPGHBXXSLFLDVTCBFYUZRMEZIHZMILOTZRGKVZHSFXNKNKSYGHZOTFF
NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY
sigaba
sigaba
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
74
74
cipher_museum
2.0
public
null
null
cda-0021265
A-KHA / SHUSH / DIBEH / DZEH / GAH / A-KEH-DI-GLINI / WOL-LA-CHEE / SHUSH / DIBEH-YAZZIE / DZEH / DZEH / A-KEH-DI-GLINI / TKIN / BE / DZEH / TSAH / MOASI / DZEH / MOASI / A-KHA / NA-AS-TSO-SI / DZEH / DIBEH / SHUSH / DZEH ...
A-KHA / SHUSH / DIBEH / DZEH / GAH / A-KEH-DI-GLINI / WOL-LA-CHEE / SHUSH / DIBEH-YAZZIE / DZEH / DZEH / A-KEH-DI-GLINI / TKIN / BE / DZEH / TSAH / MOASI / DZEH / MOASI / A-KHA / NA-AS-TSO-SI / DZEH / DIBEH / SHUSH / DZEH ...
OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS
navajo_code
navajo_code
null
{}
hard
en
193
193
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
playfair-v2-0147
XHASFNLMBOSAOKFLCORZ
XHASFNLMBOSAOKFLCORZ
WISDOM GUARDS THE GATE
playfair
playfair
polygraphic
{ "type": "keyword", "value": "FORTRESS" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
trifid-v2-0435
WGCLZOHUDETFKAVDGWRKWJC+XCLSAHQEDUJJBXFBXJASSAVLFZDUXNLMSSJNUSUSOGECUYL
WGCLZOHUDETFKAVDGWRKWJC+XCLSAHQEDUJJBXFBXJASSAVLFZDUXNLMSSJNUSUSOGECUYL
WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL
trifid
trifid
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
71
71
cipher_museum
2.0
public
null
null
wheatstone-101
CSGLMTWBCTYMUQPMULTQYPCLHMRMQYMUIUTWBCTYMUPCLHM
CSGLMTWBCTYMUQPMULTQYPCLHMRMQYMUIUTWBCTYMUPCLHM
ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "CIPHER" }
advanced
en
47
47
cipher_museum
0.2
public
null
null
bazeries-v2-0478
FTBUFGIYSPPYPPJGXJPPJIYSPPJIYSFMFKIJGPJTJQUYSLPJFOIYUBBRGYJCYQYJGYJIM
FTBUFGIYSPPYPPJGXJPPJIYSPPJIYSFMFKIJGPJTJQUYSLPJFOIYUBBRGYJCYQYJGYJIM
LA VIDA ES SUENO Y LOS SUENOS SUENOS SON PARA TODOS LOS QUE VIVEN BAJO EL CIELO ETERNO
bazeries
bazeries
transposition
{ "type": "integer", "value": 41 }
advanced
en
69
69
cipher_museum
2.0
public
null
null
vic-v3-0084
899048086689958791831868980283809018691080854910808549183642783818183692291951818146911898386829108087891792691181913124898280878983858090
899048086689958791831868980283809018691080854910808549183642783818183692291951818146911898386829108087891792691181913124898280878983858090
RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES
vic
vic
substitution
{ "type": "keyword", "value": "HOLLOW" }
advanced
en
138
138
cipher_museum
2.0
public
null
null
chinese-telegraph-v2-0018
0012 1672 0012 0538 1421 0792 1821 1346 0538 0408 0856 0012 0729
0012 1672 0012 0538 1421 0792 1821 1346 0538 0408 0856 0012 0729
AWAIT MY SIGNAL
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
52
64
cipher_museum
2.0
public
null
null
kl7-037
RJPKZRZOIVEHRSWLBOTUTBPEODOUZIQZOVPVORTVOU
RJPKZRZOIVEHRSWLBOTUTBPEODOUZIQZOVPVORTVOU
GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY
kl7
kl7
machine
{ "type": "seed", "value": "TSEC" }
expert
en
42
42
cipher_museum
0.2
public
null
null
trifid-vg-0069
T++RUS+BMO+JZXAXUEMZV+ESCBJIXSVMDNZFHZANOZHIWS++RC+REBBVCQHFHMGBZIYT
T++RUS+BMO+JZXAXUEMZV+ESCBJIXSVMDNZFHZANOZHIWS++RC+REBBVCQHFHMGBZIYT
THE ENEMY SHALL NOT PASS THIS GATE FOR GOD AND COUNTRY WE STAND FIRM TOGETHER AS ONE
trifid
trifid
fractionation
{ "type": "keyword", "value": "MUSEUM" }
advanced
en
68
68
cipher_museum
2.0
public
null
null
gronsfeld-vi-0061
CKXITDNGCLTZBVDGOSUIOZIMFBOUPADZMQKFSFVBFYUZOOMMMTBRMBHBZZWUEUCMDPTFQNMUWM
CKXITDNGCLTZBVDGOSUIOZIMFBOUPADZMQKFSFVBFYUZOOMMMTBRMBHBZZWUEUCMDPTFQNMUWM
BE WATCHFUL STAND FIRM IN THE FAITH ACT LIKE MEN BE STRONG LET ALL THAT YOU DO BE DONE IN LOVE
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "16180" }
intermediate
en
74
74
cipher_museum
2.0
public
null
null
kama-sutra-v2-0471
MJN CRPGRKN PUEMRYEX QFONCAYEMX LUA MJN ENZ MUACNVU KOYVREPN XIXMNT VNFYDNA MU RVTYARF XTYMJ EUZ
MJN CRPGRKN PUEMRYEX QFONCAYEMX LUA MJN ENZ MUACNVU KOYVREPN XIXMNT VNFYDNA MU RVTYARF XTYMJ EUZ
THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "WISDOM" }
intermediate
en
82
96
cipher_museum
2.0
public
null
null
cda-0016952
OEYSBOCJXJMXBTXAYCPIYGLEFBCZQPXYKOCDGPUKIPZAZEUHHFRXGTSYFXVZJBRJIJFHJWHSGJDWZQQUGOOCYJUWXSTSYWWYSWCVFHPFYJYJPAAACQOJHEGHTCPHLVZQSZMYRQRNGMMBRLIXKVVFLXWNFOKUUEVSKLZOFLXISMDDIMRI
OEYSBOCJXJMXBTXAYCPIYGLEFBCZQPXYKOCDGPUKIPZAZEUHHFRXGTSYFXVZJBRJIJFHJWHSGJDWZQQUGOOCYJUWXSTSYWWYSWCVFHPFYJYJPAAACQOJHEGHTCPHLVZQSZMYRQRNGMMBRLIXKVVFLXWNFOKUUEVSKLZOFLXISMDDIMRI
CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM
one_time_pad
one_time_pad
null
{}
hard
en
176
176
synthetic_educational
null
null
[ "information_theoretic_proof", "key_reuse_attack" ]
One-time pad: theoretically unbreakable if key is truly random and never reused.
chinese-telegraph-v3-0261
4680 4614 4154 5741 4427 4998 5060 5563 5963 4427 5563 4216 4427 4550 5645 4998 5563 5060 4489 4680 4550 4614 5563 5488 4154 4680 4361 4743 5060 4614 4998 5166 4154 5645 4871 4743 5060 4998 4427 5488 4154 5488 5563 4614 4427 4216 5060 4998 4614 5060 4934 4934 4427 5397 4680 4298 4614 4154 5397 4361 5563 5060 5060 4809 ...
4680 4614 4154 5741 4427 4998 5060 5563 5963 4427 5563 4216 4427 4550 5645 4998 5563 5060 4489 4680 4550 4614 5563 5488 4154 4680 4361 4743 5060 4614 4998 5166 4154 5645 4871 4743 5060 4998 4427 5488 4154 5488 5563 4614 4427 4216 5060 4998 4614 5060 4934 4934 4427 5397 4680 4298 4614 4154 5397 4361 5563 5060 5060 4809 ...
I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "14142" }
expert
en
292
364
cipher_museum
2.0
public
null
null
alberti-disk-033
LFWRRSBOGTJUBFTDBUAPTGENRZHTFZJYYSLI
LFWRRSBOGTJUBFTDBUAPTGENRZHTFZJYYSLI
THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 3 }
expert
en
36
36
cipher_museum
0.2
public
null
null
great-cipher-v3-0090
108 178 136 119 138 108 174 154 175 166 163 145 154 102 174 100 114 152 172 173 100 133 150 117 106 167 124 137 147 164 143 149 143 117 172 173 131 151 143 125 167 166 164 143 152 172 100 125 125 161 176 166 131 145 172 100 166 157 144 108 128 178 114 163 178 125 112 174
108 178 136 119 138 108 174 154 175 166 163 145 154 102 174 100 114 152 172 173 100 133 150 117 106 167 124 137 147 164 143 149 143 117 172 173 131 151 143 125 167 166 164 143 152 172 100 125 125 161 176 166 131 145 172 100 166 157 144 108 128 178 114 163 178 125 112 174
THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "VERSAILLES" }
expert
en
204
271
cipher_museum
2.0
public
null
null
bifid-v2-0014
CCTBCQLAXNZGRR
CCTBCQLAXNZGRR
PRESS THE ATTACK
bifid
bifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
14
14
cipher_museum
2.0
public
null
null
solitaire-v2-0260
ZAEFDWUXENOJNCWJZH
ZAEFDWUXENOJNCWJZH
ENEMY RETREATS NORTH
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
18
18
cipher_museum
2.0
public
null
null
kryptos-v2-0144
XTKYUPTWVSSXY
XTKYUPTWVSSXY
AWAIT MY SIGNAL
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "LANGLEY" }
advanced
en
13
13
cipher_museum
2.0
public
null
null
sigaba-v2-0260
CXDMKDXZFASRELPEUI
CXDMKDXZFASRELPEUI
ENEMY RETREATS NORTH
sigaba
sigaba
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
18
18
cipher_museum
2.0
public
null
null
playfair-v3-0047
ELFLFSPOUFKLPCUMOLZCDWRLHNOCZPSKKOFBKZEMTNAQPEMQPCVNUGUZHBQNZKSEFRPKCLHIQUCKFRLZCUOHNEPLMY
ELFLFSPOUFKLPCUMOLZCDWRLHNOCZPSKKOFBKZEMTNAQPEMQPCVNUGUZHBQNZKSEFRPKCLHIQUCKFRLZCUOHNEPLMY
CALL ME ISHMAEL SOME YEARS AGO NEVER MIND HOW LONG PRECISELY I THOUGHT I WOULD SAIL ABOUT AND SEE THE OCEAN
playfair
playfair
polygraphic
{ "type": "keyword", "value": "PALACE" }
intermediate
en
90
90
cipher_museum
2.0
public
null
null
kryptos-v2-0172
HUKLSLLDHFQCVSOHWDOKEOTTVXYNXBXNYNTXKUMUZGMKKOYBAFXPNCVNBHZNHVGU
HUKLSLLDHFQCVSOHWDOKEOTTVXYNXBXNYNTXKUMUZGMKKOYBAFXPNCVNBHZNHVGU
WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "LANGLEY" }
advanced
en
64
64
cipher_museum
2.0
public
null
null
kryha-v3-0290
CNQLXAZMLJXACTVRKACVEZPCQIGGRXUJJWZBKASEEYDXSPALRVMSOORWDSRKGPJNUHGBNRSMEITWSXOPBAYMJ
CNQLXAZMLJXACTVRKACVEZPCQIGGRXUJJWZBKASEEYDXSPALRVMSOORWDSRKGPJNUHGBNRSMEITWSXOPBAYMJ
CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE
kryha
kryha
machine
{ "type": "keyword", "value": "PRAGUE" }
expert
en
85
85
cipher_museum
2.0
public
null
null
fractionated-morse-146
EDLRQMMIGWQQDRPCIKQO
EDLRQMMIGWQQDRPCIKQO
FORWARD MARCH NOW
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "SECRET" }
advanced
en
20
20
cipher_museum
0.2
public
null
null
pigpen-v2-0034
┼• ┤• ╲• ╱ ╲ ┤• ┐• ├ ┤• ╲ ┼ ¬ ¬• ┤• ┐• ╱ ├•
┼• ┤• ╲• ╱ ╲ ┤• ┐• ├ ┤• ╲ ┼ ¬ ¬• ┤• ┐• ╱ ├•
NOVUS ORDO SECLORUM
pigpen
pigpen
substitution
{ "type": "none", "value": null }
beginner
en
27
43
cipher_museum
2.0
public
null
null
cda-0002640
QB ABG PBASHFR BOSHFPNGVBA JVGU RAPELCGVBA GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR GUR ORFG YRFFBAF FUBJ JURER GUR ZRGUBQ SNVYF FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE
QB ABG PBASHFR BOSHFPNGVBA JVGU RAPELCGVBA GUR VAQRK BS PBVAPVQRAPR VF N HFRSHY PYHR GUR ORFG YRFFBAF FUBJ JURER GUR ZRGUBQ SNVYF FHOFGVGHGVBA PVCUREF ZNC RNPU YRGGRE GB N QVSSRERAG YRGGRE
DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE INDEX OF COINCIDENCE IS A USEFUL CLUE THE BEST LESSONS SHOW WHERE THE METHOD FAILS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
rot13
rot13
null
{ "shift": 13 }
hard
en
158
158
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
kama-sutra-203
BNW JLHO LX QWVQ
BNW JLHO LX QWVQ
THE KING IS DEAD
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "MUSEUM" }
intermediate
en
13
16
cipher_museum
0.2
public
null
null
monoalphabetic-v2-0008
EMEKY RETREPTS MNRTF
EMEKY RETREPTS MNRTF
ENEMY RETREATS NORTH
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "PALACE" }
beginner
en
18
20
cipher_museum
2.0
public
null
null
purple-v3-0200
NJYCDYQRUTBGXYABAWLRHCVQSMZLSQDCXAPXPYJDABRWZUXLRDDGCWPTJYGCEGJCXZAEOFDTYKICAKPPZUOCGPOMHYVPSSKFZHTNLDZWIJJTYKWOJPYGUNCNRRUNFTQPCRRMGMNWFNYTUTNNFDRJGAJQBOGXWPOYTLCBJ
NJYCDYQRUTBGXYABAWLRHCVQSMZLSQDCXAPXPYJDABRWZUXLRDDGCWPTJYGCEGJCXZAEOFDTYKICAKPPZUOCGPOMHYVPSSKFZHTNLDZWIJJTYKWOJPYGUNCNRRUNFTQPCRRMGMNWFNYTUTNNFDRJGAJQBOGXWPOYTLCBJ
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
purple
purple
machine
{ "type": "seed", "value": "YAMAMOTO" }
expert
en
165
165
cipher_museum
2.0
public
null
null
vic-048
912782290129191278291845918509184828992820918521384829184829091850127682908519184828785181
912782290129191278291845918509184828992820918521384829184829091850127682908519184828785181
TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND
vic
vic
substitution
{ "type": "keyword", "value": "SNOWFALL" }
advanced
en
90
90
cipher_museum
0.2
public
null
null
two-square-v2-0328
RGKUIPHEUAISEZASTPVEQUGABYLEONBATTISREBKBERTRBTANAISNFSUEARCPUTEBCPPDGTABSHURFLUQC
RGKUIPHEUAISEZASTPVEQUGABYLEONBATTISREBKBERTRBTANAISNFSUEARCPUTEBCPPDGTABSHURFLUQC
THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST
two_square
two_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
playfair-v2-0684
GTDAQCHEGTCDOFIDNOUCWAHDHRQCIFCKQUTBECVEBSIBQIHDNFWNHTCUPOMZEOEUIBFAGCKTBNSY
GTDAQCHEGTCDOFIDNOUCWAHDHRQCIFCKQUTBECVEBSIBQIHDNFWNHTCUPOMZEOEUIBFAGCKTBNSY
LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT
playfair
playfair
polygraphic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
76
76
cipher_museum
2.0
public
null
null
hill-v3-0055
MCSAXSSYPFNKZDTSVQGGDPKWHWEINNQDPDCSQMTQPFNKZDMCSAXSACHTVQCBCKNRDVXMQXACZGZWLD
MCSAXSSYPFNKZDTSVQGGDPKWHWEINNQDPDCSQMTQPFNKZDMCSAXSACHTVQCBCKNRDVXMQXACZGZWLD
SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN
hill
hill
polygraphic
{ "a": 3, "b": 5, "c": 2, "d": 9 }
advanced
en
78
78
cipher_museum
2.0
public
null
null
cda-0020922
4 15 21 2 12 5 20 18 1 14 19 16 15 19 9 20 9 15 14 1 16 16 12 9 5 19 3 15 12 21 13 14 1 18 5 14 3 18 25 16 20 9 15 14 20 23 9 3 5 13 15 4 5 18 14 5 14 3 18 25 16 20 9 15 14 9 19 14 15 20 2 18 15 11 5 14 2 25 12 5 20 20 5 18 6 18 5 17 21 5 14 3 25 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 1...
4 15 21 2 12 5 20 18 1 14 19 16 15 19 9 20 9 15 14 1 16 16 12 9 5 19 3 15 12 21 13 14 1 18 5 14 3 18 25 16 20 9 15 14 20 23 9 3 5 13 15 4 5 18 14 5 14 3 18 25 16 20 9 15 14 9 19 14 15 20 2 18 15 11 5 14 2 25 12 5 20 20 5 18 6 18 5 17 21 5 14 3 25 20 23 15 19 17 21 1 18 5 3 9 16 8 5 18 5 14 3 18 25 16 20 19 4 9 7 18 1 1...
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS
aeneas_tacticus
aeneas_tacticus
null
{}
hard
en
148
148
synthetic_educational
null
null
[ "sequential_number_decode", "frequency_analysis" ]
Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26.
diana-030
MIPCCDPXNEQ
MIPCCDPXNEQ
RALLY AT DAWN
diana
diana
polyalphabetic
{ "type": "keyword", "value": "DIANA" }
intermediate
en
11
11
cipher_museum
0.2
public
null
null
adfgvx-v3-0310
XDAAXADGAADAADFAVAAAAFDDGDVDADFGXFVDVGAFAFVGVAXAADDDDDADAAAGXFVGAGADXVDDFDXAFDADDDGDFDADXAVDDADXAXDFFAADFDAFAGDAAXAXAXDAFAGGDAFFAAFADAADDXFADAVDDGGGAFADDDFFAAFDVAAAAAXAVDVGFADDDGVGXGGFAGVDDDDAXFAAADXDXGGAFFADXDGAFDAAAAFAXDDAXAVAXAADAAAGAFAAFDGAXAXDFAADXFXFXDGFDGFDADVFXADVGGAFDDXDDGGADDFAAAADDADXDXAFGADFDAADAGADAADDVXFA...
XDAAXADGAADAADFAVAAAAFDDGDVDADFGXFVDVGAFAFVGVAXAADDDDDADAAAGXFVGAGADXVDDFDXAFDADDDGDFDADXAVDDADXAXDFFAADFDAFAGDAAXAXAXDAFAGGDAFFAAFADAADDXFADAVDDGGGAFADDDFFAAFDVAAAAAXAVDVGFADDDGVGXGGFAGVDDDDAXFAAADXDXGGAFFADXDGAFDAAAAFAXDDAXAVAXAADAAAGAFAAFDGAXAXDFAADXFXFXDGFDGFDADVFXADVGGAFDDXDDGGADDFAAAADDADXDXAFGADFDAADAGADAADDVXFA...
THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
330
330
cipher_museum
2.0
public
null
null
porta-v2-0267
RXBMHREQEUCQQMZF
RXBMHREQEUCQQMZF
ABORT AND WITHDRAW
porta
porta
polyalphabetic
{ "type": "keyword", "value": "ITALY" }
intermediate
en
16
16
cipher_museum
2.0
public
null
null
vigenere-vf-0127
ULEHFJZZBXOLHVRKUWTBJGKTSW
ULEHFJZZBXOLHVRKUWTBJGKTSW
THE NAVIGATOR CHARTS THE STARS
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "BEAUFORT" }
intermediate
en
26
26
cipher_museum
2.0
public
null
null
cda-0020875
00328 6028 06377 5698 04768 04430 2247 01004 3848 0377 02864 04118 04427 1582 1605 01332 05991 06019 6355 5660 4782 4399 2200 01655 6934 2904 01268 01623 4449 0957 1570 1023 5684 07907 05084 6309 4740 02214 05714 00315 5052 02588 07888 5730 1622 7310 00387 05699 01344 6014 5050 0403 06356 2879 01574 4437 01038 1609 034...
00328 6028 06377 5698 04768 04430 2247 01004 3848 0377 02864 04118 04427 1582 1605 01332 05991 06019 6355 5660 4782 4399 2200 01655 6934 2904 01268 01623 4449 0957 1570 1023 5684 07907 05084 6309 4740 02214 05714 00315 5052 02588 07888 5730 1622 7310 00387 05699 01344 6014 5050 0403 06356 2879 01574 4437 01038 1609 034...
A STRONG CLAIM NEEDS STRONG EVIDENCE CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE BEST LESSONS SHOW WHERE THE METHOD FAILS
zimmermann
zimmermann
null
{}
hard
en
113
113
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
red-type-a-087
LPOMPYDIDDUN
LPOMPYDIDDUN
THE TRAP IS SET
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "CIPHER" }
advanced
en
12
12
cipher_museum
0.2
public
null
null
cda-0005528
HUR ZRFEOTR JNF VWRQSA PGH ABG FSQIER WARSL BS QBWNQVQSAQS ANNFHESG YRGGSD NERDHSNQL QWFGDWPHGVBN CPFSEIOPYR SIWRSAPS PBASF OSSBDS QBASWRSAPS
HUR ZRFEOTR JNF VWRQSA PGH ABG FSQIER WARSL BS QBWNQVQSAQS ANNFHESG YRGGSD NERDHSNQL QWFGDWPHGVBN CPFSEIOPYR SIWRSAPS PBASF OSSBDS QBASWRSAPS
THE MESSAGE WAS HIDDEN BUT NOT SECURE INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE
porta
porta
null
{ "key": "LIBRARY" }
hard
en
123
123
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
jn25-v3-0176
09908 09996 09993 09900 09903 09910 09993 09903 09994 09901 09903 09902 09993 09913 09997 09907 09908 09996 09993 09906 09903 09903 09908 09903 09994 09999 09900 09900 09993 09910 09997 09900 09990 09919 09908 09997 09908 09997 09907 09908 09996 09993 09900 09903 09910 09993 09903 09994 09995 09903 09903 09992 09908 09...
09908 09996 09993 09900 09903 09910 09993 09903 09994 09901 09903 09902 09993 09913 09997 09907 09908 09996 09993 09906 09903 09903 09908 09903 09994 09999 09900 09900 09993 09910 09997 09900 09990 09919 09908 09997 09908 09997 09907 09908 09996 09993 09900 09903 09910 09993 09903 09994 09995 09903 09903 09992 09908 09...
THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD
jn25
jn25
codebook
{ "type": "additive", "value": "99999" }
expert
en
345
413
cipher_museum
2.0
public
null
null
playfair-v2-0774
RPKNKHHNILGKDRRUQEBAFHFTQKDRRUQELMHIRDFLWNLMDHPIPIUTFKDRQZQIWDUWOFIULEFWFE
RPKNKHHNILGKDRRUQEBAFHFTQKDRRUQELMHIRDFLWNLMDHPIPIUTFKDRQZQIWDUWOFIULEFWFE
THE SECRET OF GETTING AHEAD IS GETTING STARTED ONE STEP AT A TIME GETS YOU VERY FAR INDEED
playfair
playfair
polygraphic
{ "type": "keyword", "value": "TRIUMPH" }
intermediate
en
74
74
cipher_museum
2.0
public
null
null
bazeries-v2-0143
YNJEOYGNYRTOFFJHOUJ
YNJEOYGNYRTOFFJHOUJ
CODED MESSAGE FOLLOWS
bazeries
bazeries
transposition
{ "type": "integer", "value": 23 }
advanced
en
19
19
cipher_museum
2.0
public
null
null
nihilist-v3-0217
24 36 77 36 56 40 53 36 59 90 32 56 38 74 24 59 56 23 27 57
24 36 77 36 56 40 53 36 59 90 32 56 38 74 24 59 56 23 27 57
THE COMPASS POINTS TRUE
nihilist
nihilist
fractionation
{ "polybius": "TRIUMPH", "keyword": "JUSTICE" }
advanced
en
40
59
cipher_museum
2.0
public
null
null
kryha-v2-0320
HPRBFACVEXVEQRLEKMHIAQPZFQCBVSDIZKWDJHBUDNMFCHGJDHMQIGFSEEJVWHXLPSVGQBIDCARR
HPRBFACVEXVEQRLEKMHIAQPZFQCBVSDIZKWDJHBUDNMFCHGJDHMQIGFSEEJVWHXLPSVGQBIDCARR
BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US
kryha
kryha
machine
{ "type": "keyword", "value": "PRAGUE" }
expert
en
76
76
cipher_museum
2.0
public
null
null
cda-0010675
AAAAESAOUTRKEPRETATTOHNPUHWNRNEADGNMOXEEATGZTITZDBSTINPRUBCHELIEYWXRTITYPBUELORXDEOIOTTSIIIESETMERCETRNTKARCNGSTRXTAIESPRIUHXEGISENNHETYLRIEAECERVFPNXECSSHIRENRNTIWAUBPIIPAENO
AAAAESAOUTRKEPRETATTOHNPUHWNRNEADGNMOXEEATGZTITZDBSTINPRUBCHELIEYWXRTITYPBUELORXDEOIOTTSIIIESETMERCETRNTKARCNGSTRXTAIESPRIUHXEGISENNHETYLRIEAECERVFPNXECSSHIRENRNTIWAUBPIIPAENO
THE VIGENERE CIPHER USES A REPEATING KEYWORD THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION
double_transposition
double_transposition
null
{ "key1": "SECURE", "key2": "FREEDOM" }
hard
en
175
175
synthetic_educational
null
null
[]
fialka-v3-0222
VXXCQHBBVHUZGZYHPZ
VXXCQHBBVHUZGZYHPZ
LOWER THE DRAWBRIDGE
fialka
fialka
machine
{ "type": "seed", "value": "SOVIET" }
expert
en
18
18
cipher_museum
2.0
public
null
null
cda-0018458
KLIZ ZIED ZEHG AHMO ASIK LIZZ IELI NAKH AMAE MAED IBEH CLAG IAIH GAHT KINT SAHM OASI TKIN CLAG IAIH DIBE HYAZ ZIED ZEHD IBEH WOLL ACHE ETSA HASZ IHDI BEHT HANZ IELI NDZE HDIB EHTS AHAS ZIHD IBEH THAN ZIED ZEHN AAST SOSI NAAS TSOS INOD AIHD IBEH THAN ZIES HUSH DZEH DIBE HDZE H
KLIZ ZIED ZEHG AHMO ASIK LIZZ IELI NAKH AMAE MAED IBEH CLAG IAIH GAHT KINT SAHM OASI TKIN CLAG IAIH DIBE HYAZ ZIED ZEHD IBEH WOLL ACHE ETSA HASZ IHDI BEHT HANZ IELI NDZE HDIB EHTS AHAS ZIHD IBEH THAN ZIED ZEHN AAST SOSI NAAS TSOS INOD AIHD IBEH THAN ZIES HUSH DZEH DIBE HDZE H
KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS
navajo_code
navajo_code
null
{}
hard
en
221
221
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
chinese-telegraph-v2-0218
9003 8100 8685 8437 7974 7720 8528 8528 7720 8100 8038 7720 7529 9003 8100 8685 7338 7654 8100 8100 8528 7467 8603 8100 7194 7338 7338 7467 8206 8603 7720 8603 7720 8528 8603 8100 7467 8930 8603 8437 7194 7338 8603 8603 7654 7467 7194 7590 7467 8038 8603 7529 8437 8100 7974 7256 7467 7654 7720 8038 7401 7467 8038 7467 ...
9003 8100 8685 8437 7974 7720 8528 8528 7720 8100 8038 7720 7529 9003 8100 8685 7338 7654 8100 8100 8528 7467 8603 8100 7194 7338 7338 7467 8206 8603 7720 8603 7720 8528 8603 8100 7467 8930 8603 8437 7194 7338 8603 8603 7654 7467 7194 7590 7467 8038 8603 7529 8437 8100 7974 7256 7467 7654 7720 8038 7401 7467 8038 7467 ...
YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "27182" }
expert
en
312
389
cipher_museum
2.0
public
null
null
chaocipher-v2-0605
XXJZKNRSZQGNDYUAFESDYTPLJEPPPWYECTUCVUKPHUYXSCQFOLEDZKTMNHMKIKWNIHJIUDNQKNYSO
XXJZKNRSZQGNDYUAFESDYTPLJEPPPWYECTUCVUKPHUYXSCQFOLEDZKTMNHMKIKWNIHJIUDNQKNYSO
DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "TRIUMPH" }
advanced
en
77
77
cipher_museum
2.0
public
null
null
kryha-v2-0096
UPTHUJTQUCLJZCNCWVIFPAMBLUFPEXHNKHZRDWJNUENVUGMANNGFRSHTDZRGWIGUSRUJZDREDVYTOQAMZM
UPTHUJTQUCLJZCNCWVIFPAMBLUFPEXHNKHZRDWJNUENVUGMANNGFRSHTDZRGWIGUSRUJZDREDVYTOQAMZM
THE ZIMMERMANN TELEGRAM WAS DECODED BY ROOM FORTY IN LONDON AND BROUGHT AMERICA INTO THE GREAT WAR
kryha
kryha
machine
{ "type": "keyword", "value": "MUNICH" }
expert
en
82
82
cipher_museum
2.0
public
null
null
jefferson-disk-v2-0214
TZEZYDRUURGHQUSYGHOMLYQ
TZEZYDRUURGHQUSYGHOMLYQ
CARTHAGE MUST BE DESTROYED
jefferson_disk
jefferson_disk
disk
{ "type": "disk_order", "value": "1,3,5,2,4,6" }
expert
en
23
23
cipher_museum
2.0
public
null
null
monoalphabetic-v2-0918
IEOAQTY LQ RAHTD
IEOAQTY LQ RAHTD
LIBERTY OR DEATH
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "HONOR" }
beginner
en
14
16
cipher_museum
2.0
public
null
null
sigaba-v2-0303
KFNXARIOYTWMCRTSSYKWVUJCLLAFCJGOVZHLSXIYIQDPJEZBLZRVLGRBPJGFVUENSZFTEVQCPLFVAUE
KFNXARIOYTWMCRTSSYKWVUJCLLAFCJGOVZHLSXIYIQDPJEZBLZRVLGRBPJGFVUENSZFTEVQCPLFVAUE
RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT
sigaba
sigaba
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
79
79
cipher_museum
2.0
public
null
null
purple-v2-0021
VNVWZLQSHPR
VNVWZLQSHPR
KNOW THYSELF
purple
purple
machine
{ "type": "seed", "value": "TOKYO" }
expert
en
11
11
cipher_museum
2.0
public
null
null
m209-v3-0030
LEEBIYNRFULXQJKNAOLZMYQHCIXPP
LEEBIYNRFULXQJKNAOLZMYQHCIXPP
TAXATION WITHOUT REPRESENTATION
m209
m209
machine
{ "type": "seed", "value": "ARMY" }
expert
en
29
29
cipher_museum
2.0
public
null
null
cardano-autokey-v3-0087
FALIRVOSMMMCJPVRLHDDNNSLKFBBAUKCLYHGNFVFTUDGKAJMPWWXMBVTYEMKSVTOBLWIQGHOSVEKKBMP
FALIRVOSMMMCJPVRLHDDNNSLKFBBAUKCLYHGNFVFTUDGKAJMPWWXMBVTYEMKSVTOBLWIQGHOSVEKKBMP
THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MILAN" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
rail-fence-v3-0330
TTRREUAOCCHEEHRTYNI
TTRREUAOCCHEEHRTYNI
TREACHERY IN THE COURT
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 10 }
intermediate
en
19
19
cipher_museum
2.0
public
null
null
cda-0007927
ESTBI UYEOD IRLLU IUDTP TXYWA WNOIE IUTRN TOOTE ITTNE ISSTE ISIRN GXEBN IROPU OTENX RFCTU CSORS PTMOT WCBRL XFUIU ENRIN ICEXS TNHFI TRYQA EOAOA TCSHA XECHI ECNEO ENOTE DNSDN ORLSF SSCNO R
ESTBI UYEOD IRLLU IUDTP TXYWA WNOIE IUTRN TOOTE ITTNE ISSTE ISIRN GXEBN IROPU OTENX RFCTU CSORS PTMOT WCBRL XFUIU ENRIN ICEXS TNHFI TRYQA EOAOA TCSHA XECHI ECNEO ENOTE DNSDN ORLSF SSCNO R
INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION SLOWLY
double_transposition
double_transposition
null
{ "key1": "MUSEUM", "key2": "SIGNAL" }
hard
en
156
156
synthetic_educational
null
null
[]
voynich-render-v3-0039
gcd dbndqkldrg yirskqlx
gcd dbndqkldrg yirskqlx
THE EXPERIMENT CONFIRMS
voynich_render
voynich_render
substitution
{ "type": "none", "value": null }
expert
en
21
23
cipher_museum
2.0
public
null
null
porta-v2-0664
GBBHAHEXBAYPSBMAZ
GBBHAHEXBAYPSBMAZ
NOVUS ORDO SECLORUM
porta
porta
polyalphabetic
{ "type": "keyword", "value": "PAPAL" }
intermediate
en
17
17
cipher_museum
2.0
public
null
null
cda-0019004
WPKIA XSFRQ VVKOG HTYBI MJYWG GFXAR XOWYD SOBPE XGZCA LVJPW WDEYR LCJTA MTYZX AIJLY PXUHL SQVKE GAPAT FVGLO MWTAE MIZGW UIVLA ROYQW HWGFR MVBTR MITRK WIEEG ZCALV LSMDQ MAGET IANIS NRBHI FVVVI BOLNK QROLA EMMII F
WPKIA XSFRQ VVKOG HTYBI MJYWG GFXAR XOWYD SOBPE XGZCA LVJPW WDEYR LCJTA MTYZX AIJLY PXUHL SQVKE GAPAT FVGLO MWTAE MIZGW UIVLA ROYQW HWGFR MVBTR MITRK WIEEG ZCALV LSMDQ MAGET IANIS NRBHI FVVVI BOLNK QROLA EMMII F
DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE MESSAGE WAS HIDDEN BUT NOT SECURE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS
running_key
running_key
null
{}
hard
en
176
176
synthetic_educational
null
null
[ "index_of_coincidence", "probable_plaintext" ]
Running-key cipher: Vigenère with a very long key (e.g. a book passage).
zimmermann-v3-0100
99999 90008 90012 90012 90000 90013 90020 90004 90011 99998 99999 90010 90000 90013 90019 99998 99999 90015 90017 90014 90015 90014 90018 90004 90003 99998 00007 99999 90022 90004 99998 99999 90018 90007 90014 90020 90011 90003 99998 99999 90000 90002 90019 99998 00072 99999 90000 90002 90002 90014 90017 90003 90008 90...
99999 90008 90012 90012 90000 90013 90020 90004 90011 99998 99999 90010 90000 90013 90019 99998 99999 90015 90017 90014 90015 90014 90018 90004 90003 99998 00007 99999 90022 90004 99998 99999 90018 90007 90014 90020 90011 90003 99998 99999 90000 90002 90019 99998 00072 99999 90000 90002 90002 90014 90017 90003 90008 90...
IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY
zimmermann
zimmermann
codebook
{ "type": "none", "value": null }
expert
en
850
1,019
cipher_museum
2.0
public
null
null
adfgx-260
FFADGFGFFAGAGDADDXDAXADDXDDDAADFFXXFXDXDDXFDDXDAFFAFADGXADFAGDGGAGAGFAGXFFFFAAFGDDXXDDXAFDDDDXGDAAAFFA
FFADGFGFFAGAGDADDXDAXADDXDDDAADFFXXFXDXDDXFDDXDAFFAFADGXADFAGDGGAGAGFAGXFFFFAAFGDDXXDDXAFDDDDXGDAAAFFA
ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS
adfgx
adfgx
fractionation
{ "polybius": "KEYWORD", "columnar": "TRAFIC" }
advanced
en
102
102
cipher_museum
0.2
public
null
null
diana-v3-0031
ZMAOQMGSMCNYTAVOAFQPJ
ZMAOQMGSMCNYTAVOAFQPJ
SONS OF LIBERTY ASSEMBLE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "RANGER" }
intermediate
en
21
21
cipher_museum
2.0
public
null
null
adfgx-095
AXXAGFGGXDDGXDDGAXGAFFADAGDGGAXDAGADGFAGDGAGGDGGDDDADXDADXGXAFXFXGAXAAAGDFDDAGDGDXADGA
AXXAGFGGXDDGXDDGAXGAFFADAGDGGAXDAGADGFAGDGAGGDGGDDDADXDADXGXAFXFXGAXAAAGDFDDAGDGDXADGA
FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT
adfgx
adfgx
fractionation
{ "polybius": "CIPHER", "columnar": "MUSEUM" }
advanced
en
86
86
cipher_museum
0.2
public
null
null
cda-0012816
⟨w26⟩ ⟨w10⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨w20⟩ ⟨a37⟩ ⟨a13⟩ ⟨a01⟩ ⟨w08⟩ ⟨w32⟩ ⟨a07⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w32⟩ ⟨a19⟩ ⟨a01⟩ ⟨w32⟩ ⟨w04⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w...
⟨w26⟩ ⟨w10⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨w20⟩ ⟨a37⟩ ⟨a13⟩ ⟨a01⟩ ⟨w08⟩ ⟨w32⟩ ⟨a07⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w32⟩ ⟨a19⟩ ⟨a01⟩ ⟨w32⟩ ⟨w04⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a11⟩ ⟨w32⟩ ⟨a23⟩ ⟨w32⟩ ⟨a17⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w...
GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION
babington
babington
null
{}
hard
en
92
92
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
cda-0007292
IINUVDURTRUSFARSCNBIDRCERFCXTALGEEEPELSEUS
IINUVDURTRUSFARSCNBIDRCERFCXTALGEEEPELSEUS
PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN
double_transposition
double_transposition
null
{ "key1": "CIPHER", "key2": "PALACE" }
medium
en
42
42
synthetic_educational
null
null
[]
cda-0004745
NZBQ RYPN APYN FFVS LCNG GREA FOHG VGPN ANYF BORJ EBAT
NZBQ RYPN APYN FFVS LCNG GREA FOHG VGPN ANYF BORJ EBAT
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
rot13
rot13
null
{ "shift": 13 }
medium
en
44
44
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
cda-0015265
BYKUP USKBK SSUTN EKCWM RCCBE XHXRP SUJIW ADINB NXVHU EEFT
BYKUP USKBK SSUTN EKCWM RCCBE XHXRP SUJIW ADINB NXVHU EEFT
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE
vernam
vernam
null
{}
medium
en
49
49
synthetic_educational
null
null
[ "key_reuse_attack", "information_theoretic_proof" ]
Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP.
morse-code-v3-0076
.-- .... .- - / -.. --- . ... / .. - / .--. .-. --- ..-. .. - / .- / -- .- -. / - --- / --. .- .. -. / - .... . / .-- .... --- .-.. . / .-- --- .-. .-.. -.. / .- -. -.. / -.-- . - / .-.. --- ... . / .... .. ... / --- .-- -. / .. -- -- --- .-. - .- .-.. / ... --- ..- .-.. / ..-. --- .-. . ...- . .-.
.-- .... .- - / -.. --- . ... / .. - / .--. .-. --- ..-. .. - / .- / -- .- -. / - --- / --. .- .. -. / - .... . / .-- .... --- .-.. . / .-- --- .-. .-.. -.. / .- -. -.. / -.-- . - / .-.. --- ... . / .... .. ... / --- .-- -. / .. -- -- --- .-. - .- .-.. / ... --- ..- .-.. / ..-. --- .-. . ...- . .-.
WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER
morse_code
morse_code
encoding
{ "type": "none", "value": null }
beginner
en
208
299
cipher_museum
2.0
public
null
null