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
monoalphabetic-v3-0950
GKVOP RBO DPWVIPCDAO
GKVOP RBO DPWVIPCDAO
LOWER THE DRAWBRIDGE
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "WISDOM" }
beginner
en
18
20
cipher_museum
2.0
public
null
null
bazeries-281
JGCPTQTEVQIMSJXMQGSJRGTIXXMJOJQSHSJXQTEVGTISJJR
JGCPTQTEVQIMSJXMQGSJRGTIXXMJOJQSHSJXQTEVGTISJJR
ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO
bazeries
bazeries
transposition
{ "type": "integer", "value": 31 }
advanced
en
47
47
cipher_museum
0.2
public
null
null
adfgvx-v2-0152
AXFGDAAGGAGFAAVFAAXDGGGVGGXAAFDVDG
AXFGDAAGGAGFAAVFAAXDGGGVGGXAAFDVDG
KEEP YOUR POWDER DRY
adfgvx
adfgvx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
34
34
cipher_museum
2.0
public
null
null
cda-0005983
SONY NYBF SNVF OCBF GHEN ABGO FYBT OAOY OAGH EVAT PEBX SRAW TZOJ VGUQ EVPF OARG USNB ZPRZ OQVV ASGU SSEW RRZO AGRF GHFS FGVR VAQN KBSQ BVAQ VRRA QRGB RFGV ZOGN XRLY RAUG UEBH GRNW CUSE FERO ROTE VRNA OCEN FQEW NNRT RBZN GEVQ COGG REA
SONY NYBF SNVF OCBF GHEN ABGO FYBT OAOY OAGH EVAT PEBX SRAW TZOJ VGUQ EVPF OARG USNB ZPRZ OQVV ASGU SSEW RRZO AGRF GHFS FGVR VAQN KBSQ BVAQ VRRA QRGB RFGV ZOGN XRLY RAUG UEBH GRNW CUSE FERO ROTE VRNA OCEN FQEW NNRT RBZN GEVQ COGG REA
FAIL CLOSED IS A POSTURE NOT A SLOGAN ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN
porta
porta
null
{ "key": "CIPHER" }
hard
en
187
187
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
cda-0017542
11.2.12 5.45.6 7.21.7 8.10.6 16.39.9 2.38.15 10.28.6 7.33.6 16.24.6 14.46.4 8.28.3 19.43.7 16.18.5 7.49.7 9.12.3 1.36.8 9.14.12 4.6.9 19.5.5 8.44.12 7.15.15 20.6.1 20.38.1 13.9.13 20.30.15 18.49.6 12.34.14 2.7.3 12.43.9 12.7.7 18.18.13 5.35.9 3.47.6 18.1.13 14.24.1 12.27.11 14.48.11 16.9.6 15.8.3 2.21.9 20.31.4 10.45.7...
11.2.12 5.45.6 7.21.7 8.10.6 16.39.9 2.38.15 10.28.6 7.33.6 16.24.6 14.46.4 8.28.3 19.43.7 16.18.5 7.49.7 9.12.3 1.36.8 9.14.12 4.6.9 19.5.5 8.44.12 7.15.15 20.6.1 20.38.1 13.9.13 20.30.15 18.49.6 12.34.14 2.7.3 12.43.9 12.7.7 18.18.13 5.35.9 3.47.6 18.1.13 14.24.1 12.27.11 14.48.11 16.9.6 15.8.3 2.21.9 20.31.4 10.45.7...
ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS
book_cipher
book_cipher
null
{}
hard
en
152
152
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
caesar-v3-1031
IWT PGBN LXAA RGDHH IWT STAPLPGT GXKTG IDCXVWI PI TATKTC DRADRZ IWT BTC LXAA RPGGN DCAN IWTXG LTPEDCH PCS IWGTT SPNH DU GPIXDCH BPGRW GDJITH PCS DQYTRIXKTH LXAA QT SXHIGXQJITS ID RDBBPCSTGH PI IWT RGDHHXCV
IWT PGBN LXAA RGDHH IWT STAPLPGT GXKTG IDCXVWI PI TATKTC DRADRZ IWT BTC LXAA RPGGN DCAN IWTXG LTPEDCH PCS IWGTT SPNH DU GPIXDCH BPGRW GDJITH PCS DQYTRIXKTH LXAA QT SXHIGXQJITS ID RDBBPCSTGH PI IWT RGDHHXCV
THE ARMY WILL CROSS THE DELAWARE RIVER TONIGHT AT ELEVEN OCLOCK THE MEN WILL CARRY ONLY THEIR WEAPONS AND THREE DAYS OF RATIONS MARCH ROUTES AND OBJECTIVES WILL BE DISTRIBUTED TO COMMANDERS AT THE CROSSING
caesar
caesar
substitution
{ "type": "shift", "value": 15 }
beginner
en
171
205
cipher_museum
2.0
public
null
null
autokey-de-039
CZQLMKMRDLBYDEK
CZQLMKMRDLBYDEK
ARBEIT MACHT FREI
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
intermediate
de
15
15
cipher_museum
0.2
public
null
null
joseon-yeokhak-v3-0080
PCUQVBWZPCUIVQVBMTTQOMVKMOIBPMZQVOZMTQMAWVXMZAWVITKWVBIKBIVLPCUIVAWCZKMAQVBPMNQMTL
PCUQVBWZPCUIVQVBMTTQOMVKMOIBPMZQVOZMTQMAWVXMZAWVITKWVBIKBIVLPCUIVAWCZKMAQVBPMNQMTL
HUMINT OR HUMAN INTELLIGENCE GATHERING RELIES ON PERSONAL CONTACT AND HUMAN SOURCES IN THE FIELD
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "SEOUL" }
beginner
en
82
82
cipher_museum
2.0
public
null
null
playfair-v3-0687
QLLZLTBOEDTATCZAEGBS
QLLZLTBOEDTATCZAEGBS
THE TELESCOPE REVEALS
playfair
playfair
polygraphic
{ "type": "keyword", "value": "WISDOM" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
cda-0014795
AAAB BABB ABAB BAAA BBAB BAAB AAAA BAAB BABA BBAA AABA BBAA BBBA AABA ABAA ABBA BAAA ABAA BABB AABB BAAA BAAA BAAA AAAB AABA ABAA AABB ABAB BAAB ABAA ABAA ABAA BAAA BBBA ABAA ABBA AAAA BABA AAAB ABBA ABBB ABAA BAAB AAAA BBAB ABBA AABB ABAA AABB AAAB AABA ABAA AABA ABBA AAAA AAAA BABA BAAA BAAA ABAA BAAB BABA AAAA ABBA ...
AAAB BABB ABAB BAAA BBAB BAAB AAAA BAAB BABA BBAA AABA BBAA BBBA AABA ABAA ABBA BAAA ABAA BABB AABB BAAA BAAA BAAA AAAB AABA ABAA AABB ABAB BAAB ABAA ABAA ABAA BAAA BBBA ABAA ABBA AAAA BABA AAAB ABBA ABBB ABAA BAAB AAAA BBAB ABBA AABB ABAA AABB AAAB AABA ABAA AABA ABBA AAAA AAAA BABA BAAA BAAA ABAA BAAB BABA AAAA ABBA ...
DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS
bacon_cipher
bacon_cipher
null
{}
hard
en
825
825
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
m94-v3-0046
RZNJYTQICZJNYCL
RZNJYTQICZJNYCL
THE FACTORY ROARS
m94
m94
machine
{ "type": "seed", "value": "ARMY" }
expert
en
15
15
cipher_museum
2.0
public
null
null
scytale-v2-0078
NIOTIMBTANFAGEOAVPFWNNMTAOTAACBDLSHILEAAUIETTSRWNTCIOHDNIIONCOMXTOAGOREXSNSSMENX
NIOTIMBTANFAGEOAVPFWNNMTAOTAACBDLSHILEAAUIETTSRWNTCIOHDNIIONCOMXTOAGOREXSNSSMENX
NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN
scytale
scytale
transposition
{ "type": "integer", "value": 8 }
intermediate
en
80
80
cipher_museum
2.0
public
null
null
kl7-v2-0340
KHUWAMCMEGPRJQOAQXRKSJSFBBRJIRCSFJEOQAUBUICFRKZTTXUVKLSKXKFJHPNMREADUVODFTNVGKI
KHUWAMCMEGPRJQOAQXRKSJSFBBRJIRCSFJEOQAUBUICFRKZTTXUVKLSKXKFJHPNMREADUVODFTNVGKI
CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE
kl7
kl7
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
79
79
cipher_museum
2.0
public
null
null
fractionated-morse-v3-0366
NFUKVTEHPSEEIJVUHASAEMDVLRBLDXFAXDSSPNJSEKSIARSTEEFSIKTBIKWPELBBWPEKVWPSEEIJTXMDAG
NFUKVTEHPSEEIJVUHASAEMDVLRBLDXFAXDSSPNJSEKSIARSTEEFSIKTBIKWPELBBWPEKVWPSEEIJTXMDAG
THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
cda-0006717
SESDH RAQLO AOYLF WFQOA ENISO YJROY QWCUR EFCBY LOYCV OPRGV QQWCU REFHF NZHYG WCYRO YCVOP RGFVW TGFSO WYQYB FNRWF OCBFG HENAB GOFYB TOA
SESDH RAQLO AOYLF WFQOA ENISO YJROY QWCUR EFCBY LOYCV OPRGV QQWCU REFHF NZHYG WCYRO YCVOP RGFVW TGFSO WYQYB FNRWF OCBFG HENAB GOFYB TOA
FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS FAIL CLOSED IS A POSTURE NOT A SLOGAN
porta
porta
null
{ "key": "JUSTICE" }
hard
en
113
113
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
sigaba-v2-0434
JWMQYJTRIJBTNRWQSVCRANCSKUUADPNFNYNULKQQOEXQNGWCHFPDXPVPJKSMGBLPIPI
JWMQYJTRIJBTNRWQSVCRANCSKUUADPNFNYNULKQQOEXQNGWCHFPDXPVPJKSMGBLPIPI
I KNOW NOT WHAT COURSE OTHERS MAY TAKE BUT AS FOR ME GIVE ME LIBERTY OR GIVE ME DEATH
sigaba
sigaba
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
67
67
cipher_museum
2.0
public
null
null
bazeries-v3-0370
EBGYAQPSJXQAHJMNYYIFQPBTPMFQPQAQQNYGISPYPJPSJAQPNJPTIFOPMFYXXYMJNYMBOMSJAQ
EBGYAQPSJXQAHJMNYYIFQPBTPMFQPQAQQNYGISPYPJPSJAQPNJPTIFOPMFYXXYMJNYMBOMSJAQ
THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH
bazeries
bazeries
transposition
{ "type": "integer", "value": 41 }
advanced
en
74
74
cipher_museum
2.0
public
null
null
monoalphabetic-v3-1004
RBO QLOOD KM GCABR CQ RBO TGRCHWRO QLOOD GCHCR CJ RBO TJCUOPQO OCJQROCJ DOHKJQRPWROD RBCQ
RBO QLOOD KM GCABR CQ RBO TGRCHWRO QLOOD GCHCR CJ RBO TJCUOPQO OCJQROCJ DOHKJQRPWROD RBCQ
THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "WISDOM" }
beginner
en
75
89
cipher_museum
2.0
public
null
null
adfgx-v3-0019
GDXAFGDGADFGADXGFGGXAAFGAADAAGGAGXFXFXXF
GDXAFGDGADFGADXGFGGXAAFGAADAAGGAGXFXFXXF
THE ALCHEMIST SUCCEEDS
adfgx
adfgx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
40
40
cipher_museum
2.0
public
null
null
typex-v3-0013
KTQBYKMQJBERRYWYQQQUO
KTQBYKMQJBERRYWYQQQUO
THE CASTLE IS SURROUNDED
typex
typex
machine
{ "type": "keyword", "value": "LONDON" }
expert
en
21
21
cipher_museum
2.0
public
null
null
fractionated-morse-v3-0278
HQQBBEYVMHVMAASDPBBLWYDSLUGJQGYNWLYPBYMISGLQUUAEVNYEPQAMUAPBTNPBYQQAPBJQALPWLWLYPYTG
HQQBBEYVMHVMAASDPBBLWYDSLUGJQGYNWLYPBYMISGLQUUAEVNYEPQAMUAPBTNPBYQQAPBJQALPWLWLYPYTG
GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
84
84
cipher_museum
2.0
public
null
null
geez-monastic-202
SBSQKUFPKOEPGPCEPZ
SBSQKUFPKOEPGPCEPZ
AWAIT FURTHER ORDERS
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "MUSEUM" }
advanced
en
18
18
cipher_museum
0.2
public
null
null
m94-135
YHOASQVTSKGBKED
YHOASQVTSKGBKED
OPERATION BEGINS
m94
m94
machine
{ "type": "seed", "value": "SECRET" }
expert
en
15
15
cipher_museum
0.2
public
null
null
playfair-v3-0156
LFUOOBGDLOFPHWNSTBLOCERELODFCOIOENHILFRTHKBDQERKMHBAPRCTPGUDXHLDNBOKROEPHP
LFUOOBGDLOFPHWNSTBLOCERELODFCOIOENHILFRTHKBDQERKMHBAPRCTPGUDXHLDNBOKROEPHP
GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN
playfair
playfair
polygraphic
{ "type": "keyword", "value": "FORTRESS" }
intermediate
en
74
74
cipher_museum
2.0
public
null
null
diana-026
YUJRAMFONJBBNZE
YUJRAMFONJBBNZE
FORWARD MARCH NOW
diana
diana
polyalphabetic
{ "type": "keyword", "value": "DIANA" }
intermediate
en
15
15
cipher_museum
0.2
public
null
null
cda-0019480
66 36 82 95 50 25 82 29 82 80 82 52 50 65 36 82 80 59 61 82 61 68 80 82 65 82 68 66 50 29 25 55 82 43 89 69 80 11 68 77 69 11 82 57 52 68 29 52 57 68 61 61 50 76 43 65 68 66 66 82 80 29 61 20 59 66 50 66 52 68 29 68 57 61 69 20 82 89 80 69 29 25
66 36 82 95 50 25 82 29 82 80 82 52 50 65 36 82 80 59 61 82 61 68 80 82 65 82 68 66 50 29 25 55 82 43 89 69 80 11 68 77 69 11 82 57 52 68 29 52 57 68 61 61 50 76 43 65 68 66 66 82 80 29 61 20 59 66 50 66 52 68 29 68 57 61 69 20 82 89 80 69 29 25
THE VIGENERE CIPHER USES A REPEATING KEYWORD A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
wallis_cipher
wallis_cipher
null
{}
hard
en
82
82
synthetic_educational
null
null
[ "number_substitution_decode", "frequency_analysis" ]
Wallis cipher: each letter mapped to a unique two-digit number from a fixed table.
double-transposition-v3-0354
DTOOHSTADD
DTOOHSTADD
DOT DASH DOT
double_transposition
double_transposition
transposition
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
10
10
cipher_museum
2.0
public
null
null
cda-0020869
south under broad shore turns inner takes units track inner often needs cause inner parts hours eight range shore major among place eight above carry
south under broad shore turns inner takes units track inner often needs cause inner parts hours eight range shore major among place eight above carry
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
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.
kama-sutra-v3-0271
KY X XWN EQT WMMZTX SKGUTF MWYXTX KY SZBT YKGLWYXN VTWUQTF ZY EQT RGTWETFE FTWVKGYT ZYBWFZKY
KY X XWN EQT WMMZTX SKGUTF MWYXTX KY SZBT YKGLWYXN VTWUQTF ZY EQT RGTWETFE FTWVKGYT ZYBWFZKY
ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "INDIA" }
intermediate
en
77
92
cipher_museum
2.0
public
null
null
adfgx-v3-0075
GDDXFDGGXGGAXDXAXFGGGXGGAGGDDFAXDGFAFFFAFFFFGDAFAFDAXDDDXDGGFDXFFADXGXGDGDAXAAAGAFAFGXAADFFXDGAFAGAFGFDADAAGAGADDFGGFGGAFDADAAAXXDAFFXFXXGGDGGGXXAFXFXAF
GDDXFDGGXGGAXDXAXFGGGXGGAGGDDFAXDGFAFFFAFFFFGDAFAFDAXDDDXDGGFDXFFADXGXGDGDAXAAAGAFAFGXAADFFXDGAFAGAFGFDADAAGAGADDFGGFGGAFDADAAAXXDAFFXFXXGGDGGGXXAFXFXAF
THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC
adfgx
adfgx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
152
152
cipher_museum
2.0
public
null
null
adfgvx-v2-0532
DAADAADXVFAGGDFAAVDFDGGFVGXVFAAAFA
DAADAADXVFAGGDFAAVDFDGGFVGXVFAAAFA
COURAGE IN DARKNESS
adfgvx
adfgvx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
34
34
cipher_museum
2.0
public
null
null
nihilist-v3-0170
52 48 28 39 39 65 60 56 30 56 57 48 53 46 73 68 59 37 57 56 76 52 60 35 56 39 96 59 64 38 55 46 39 54 76 62 57 29 49 48 63 47 73 56 67 26 46 75 77 82 36 49 28 39 63 47 72 47 45 37 49 56 56 73 46 37 38 39 54 76 74 66 27 25 37 66
52 48 28 39 39 65 60 56 30 56 57 48 53 46 73 68 59 37 57 56 76 52 60 35 56 39 96 59 64 38 55 46 39 54 76 62 57 29 49 48 63 47 73 56 67 26 46 75 77 82 36 49 28 39 63 47 72 47 45 37 49 56 56 73 46 37 38 39 54 76 74 66 27 25 37 66
THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC
nihilist
nihilist
fractionation
{ "polybius": "LIBERTY", "keyword": "FREEDOM" }
advanced
en
152
227
cipher_museum
2.0
public
null
null
cda-0016260
⟨w08⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a01⟩ ⟨a17⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w26⟩ ⟨w10⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨a...
⟨w08⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a07⟩ ⟨a25⟩ ⟨a25⟩ ⟨w10⟩ ⟨w10⟩ ⟨a01⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w28⟩ ⟨a01⟩ ⟨a17⟩ ⟨w22⟩ ⟨a29⟩ ⟨w10⟩ ⟨w34⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨w10⟩ ⟨a07⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w26⟩ ⟨w10⟩ ⟨w10⟩ ⟨a17⟩ ⟨w20⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨w08⟩ ⟨a01⟩ ⟨a...
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS
babington
babington
null
{}
medium
en
76
76
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
cda-0014664
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 19 5 3 21 18 9 20 25 3 12 1 9 13 19 19 8 15 21 12 4 2 5 20 5 19 20 5 4 21 14 4 5 18 19 3 18 21 20 9 14 25 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 1...
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 19 5 3 21 18 9 20 25 3 12 1 9 13 19 19 8 15 21 12 4 2 5 20 5 19 20 5 4 21 14 4 5 18 19 3 18 21 20 9 14 25 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 9 5 19 1 12 9 14 5 1 18 6 21 14 3 20 9 15 1...
THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER
aeneas_tacticus
aeneas_tacticus
null
{}
hard
en
137
137
synthetic_educational
null
null
[ "sequential_number_decode", "frequency_analysis" ]
Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26.
great-cipher-v2-0328
137 141 164 154 147 142 149 116 151 163 162 126 121 124 121 178 154 100 163 144 105 119 111 149 156 160 175 142 180 118 158 170 158 147 131 145 101 130 132 126 152 142 131 116 114 107 178 176 117 138 114 182 159 154 156 170
137 141 164 154 147 142 149 116 151 163 162 126 121 124 121 178 154 100 163 144 105 119 111 149 156 160 175 142 180 118 158 170 158 147 131 145 101 130 132 126 152 142 131 116 114 107 178 176 117 138 114 182 159 154 156 170
ALL UNITS PROCEED TO DESIGNATED RALLY POINTS AND AWAIT FURTHER ORDERS FROM HIGH COMMAND NOW
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "FRANCE" }
expert
en
168
223
cipher_museum
2.0
public
null
null
nomenclator-v3-0051
20 23 15 18 15 01 04 19 04 09 22 05 18 07 05 04 64 01 25 05 12 12 15 23 23 15 15 04 61 19 15 18 18 25 09 03 15 21 12 04 14 15 20 20 18 01 22 05 12 02 15 20 08 61 02 05 15 14 05 20 18 01 22 05 12 05 18
20 23 15 18 15 01 04 19 04 09 22 05 18 07 05 04 64 01 25 05 12 12 15 23 23 15 15 04 61 19 15 18 18 25 09 03 15 21 12 04 14 15 20 20 18 01 22 05 12 02 15 20 08 61 02 05 15 14 05 20 18 01 22 05 12 05 18
TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER
nomenclator
nomenclator
nomenclator
{ "type": "none", "value": null }
expert
en
134
200
cipher_museum
2.0
public
null
null
wallis-cipher-111
90 84 46 69 78 54 19 88 42 30 91 90 89 76 91 90 12 32 17 19 87 91 90 11 66 62 91 90 68 46 28 69 53 55 27 31 89 32 66 91 90 68 58 91 90 24 70 30 91 158 90 31 69 91 90 29 89 47 24 32 87 75 91 90 68 46 91 90 11 66 50 91 90 82 69 46 13 10 89 47 31 91
90 84 46 69 78 54 19 88 42 30 91 90 89 76 91 90 12 32 17 19 87 91 90 11 66 62 91 90 68 46 28 69 53 55 27 31 89 32 66 91 90 68 58 91 90 24 70 30 91 158 90 31 69 91 90 29 89 47 24 32 87 75 91 90 68 46 91 90 11 66 50 91 90 82 69 46 13 10 89 47 31 91
KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "CIPHER" }
expert
en
165
246
cipher_museum
0.2
public
null
null
kryptos-008
HSNGADFIOLBW
HSNGADFIOLBW
HOLD POSITION
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "KRYPTOS" }
advanced
en
12
12
cipher_museum
0.2
public
null
null
double-transposition-v3-0108
SDIETALOYENDHTAENSRG
SDIETALOYENDHTAENSRG
THE LEGIONS STAND READY
double_transposition
double_transposition
transposition
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
trifid-112
RCSKSIRDYVFO+KOBPIKSUFUZSLPIJSUNUOTBBHEWEF+TSKWIJGKFQOOCSF
RCSKSIRDYVFO+KOBPIKSUFUZSLPIJSUNUOTBBHEWEF+TSKWIJGKFQOOCSF
IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE
trifid
trifid
fractionation
{ "type": "keyword", "value": "CIPHER" }
advanced
en
58
58
cipher_museum
0.2
public
null
null
geheimschreiber-v2-0110
BYAUHIYBNBCXFILMOWLTZRDIVYBRXLFKDIHOXFTBTGISSBEKXVITAXADGGTRTNYHJQDNREZBLKPTSTENIRLAMUVEFKLRHXFBCFRXPLPKHSUNGSAPOKSDJIWKHMWLBFKKUOYKQUGS
BYAUHIYBNBCXFILMOWLTZRDIVYBRXLFKDIHOXFTBTGISSBEKXVITAXADGGTRTNYHJQDNREZBLKPTSTENIRLAMUVEFKLRHXFBCFRXPLPKHSUNGSAPOKSDJIWKHMWLBFKKUOYKQUGS
WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "BERLIN" }
expert
en
136
136
cipher_museum
2.0
public
null
null
vic-062
25870448068928468686480
25870448068928468686480
PROCEED AS PLANNED
vic
vic
substitution
{ "type": "keyword", "value": "CIPHER" }
advanced
en
23
23
cipher_museum
0.2
public
null
null
cda-0019707
67 34 32 68 48 61 72 34 21 33 78 72 34 80 11 72 81 96 92 78 88 48 81 25 88 22 80 22 92 11 63 1 87 22 49 50 11 40 82 96 96 43 33 87 32 58 93 25 41 21 30 82 66 4 43 11 17 72 32 96 64 67 48 68 23 11 91 23 52 32 81 64 48 58 43 87 34 32 25 49 81 92 50 32 67 43 91 59 60 14 25 93 72 70 21 66 63 17 48 58 43 4 27 63 22 82 87 94...
67 34 32 68 48 61 72 34 21 33 78 72 34 80 11 72 81 96 92 78 88 48 81 25 88 22 80 22 92 11 63 1 87 22 49 50 11 40 82 96 96 43 33 87 32 58 93 25 41 21 30 82 66 4 43 11 17 72 32 96 64 67 48 68 23 11 91 23 52 32 81 64 48 58 43 87 34 32 25 49 81 92 50 32 67 43 91 59 60 14 25 93 72 70 21 66 63 17 48 58 43 4 27 63 22 82 87 94...
BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
homophonic
homophonic
null
{}
hard
en
132
132
synthetic_educational
null
null
[ "frequency_analysis", "multiple_ciphertext_attack" ]
Homophonic substitution: each letter maps to multiple possible numbers.
columnar-transposition-v2-0749
EYTSEBTODHBEEEENCRNAHDDACHOOAOEHMEORMRMDNIATNAATLRHRPILSNHOTOHVTSUNEETTNOEETOYYTTEWCDHTESICERIPSUHVSIFLBFTOASSEFYDBIPPCASMOIESCOAWWSKAEAOSEYNHARLFERTTTRGTIEEENWKRYVAGETYYOTESS
EYTSEBTODHBEEEENCRNAHDDACHOOAOEHMEORMRMDNIATNAATLRHRPILSNHOTOHVTSUNEETTNOEETOYYTTEWCDHTESICERIPSUHVSIFLBFTOASSEFYDBIPPCASMOIESCOAWWSKAEAOSEYNHARLFERTTTRGTIEEENWKRYVAGETYYOTESS
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
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
175
175
cipher_museum
2.0
public
null
null
cda-0011636
AENTN REOAA AEFPR AFPFC ILUHN INLEE CECST TIAIT PLOEH INR
AENTN REOAA AEFPR AFPFC ILUHN INLEE CECST TIAIT PLOEH INR
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER
scytale
scytale
null
{ "cols": 12 }
medium
en
48
48
synthetic_educational
null
null
[]
great-cipher-v3-0207
161 168 141 179 168 143 182 149 167 125 102 122 128 161 180 160 166 154 151 146 177 173 177 121 143 112 138 152 109 177 138 103 138 171 169 168 138 155 136 179 122 127 129 170 177 118 149 157 177 173 109 177 116 133 161 157 174 119 161 115 148 114 166 116 129 102 173 177 110 136 182 169 136 175 138 117 152 148 175 178 ...
161 168 141 179 168 143 182 149 167 125 102 122 128 161 180 160 166 154 151 146 177 173 177 121 143 112 138 152 109 177 138 103 138 171 169 168 138 155 136 179 122 127 129 170 177 118 149 157 177 173 109 177 116 133 161 157 174 119 161 115 148 114 166 116 129 102 173 177 110 136 182 169 136 175 138 117 152 148 175 178 ...
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
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "ROSSIGNOL" }
expert
en
402
535
cipher_museum
2.0
public
null
null
typex-v3-0364
UIAWWUNTXDMYDDCOFMRPHWPLVQPJGUPQRWIXRMLZPJXXPLTGJJNFBUSONXKAZRUQHHPLYYIJW
UIAWWUNTXDMYDDCOFMRPHWPLVQPJGUPQRWIXRMLZPJXXPLTGJJNFBUSONXKAZRUQHHPLYYIJW
DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE
typex
typex
machine
{ "type": "keyword", "value": "WINSTON" }
expert
en
73
73
cipher_museum
2.0
public
null
null
stager-route-v3-0370
TETOAETHFNSSEHEFTEDOXXRSSARLIORUOEXXYFNSMGHDLSYOXXUETEITYSFHARXXBROTTOUATUSIXXRBSHNS
TETOAETHFNSSEHEFTEDOXXRSSARLIORUOEXXYFNSMGHDLSYOXXUETEITYSFHARXXBROTTOUATUSIXXRBSHNS
THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH
stager_route
stager_route
transposition
{ "type": "integer", "value": 12 }
expert
en
84
84
cipher_museum
2.0
public
null
null
cda-0017049
QOLI XIUO BULN WDHV TFAA UOCN ILKJ JGYD CRTB LAGL S
QOLI XIUO BULN WDHV TFAA UOCN ILKJ JGYD CRTB LAGL S
ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
one_time_pad
one_time_pad
null
{}
medium
en
41
41
synthetic_educational
null
null
[ "information_theoretic_proof", "key_reuse_attack" ]
One-time pad: theoretically unbreakable if key is truly random and never reused.
stager-route-v3-0222
LWBOWRIERDGTHEXEDXXRAX
LWBOWRIERDGTHEXEDXXRAX
LOWER THE DRAWBRIDGE
stager_route
stager_route
transposition
{ "type": "integer", "value": 11 }
expert
en
22
22
cipher_museum
2.0
public
null
null
cda-0014780
04146 04801 1315 1604 05734 04416 01637 04407 0954 5697 07911 5065 6329 02850 04807 04444 02913 06035 4494 04736 6303 00657 5705 04738 03530 1575 04495 00688 07890 03856 1603 06327 6317 01594 05742 1915 5685 01603 5427 06686 1669 04409 1039 07887
04146 04801 1315 1604 05734 04416 01637 04407 0954 5697 07911 5065 6329 02850 04807 04444 02913 06035 4494 04736 6303 00657 5705 04738 03530 1575 04495 00688 07890 03856 1603 06327 6317 01594 05742 1915 5685 01603 5427 06686 1669 04409 1039 07887
MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY
zimmermann
zimmermann
null
{}
medium
en
44
44
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
affine-v2-1660
STGTSN HUS XPUFLNA
STGTSN HUS XPUFLNA
DIVIDE AND CONQUER
affine
affine
substitution
{ "a": 21, "b": 7 }
beginner
en
16
18
cipher_museum
2.0
public
null
null
red-type-a-v2-0304
DOSECYJHKANFRUTPYLOHVOHRWFAFXFVIJVIYCKUSESUDSOTONOHDBYJOCNGIUFHIDISSOREY
DOSECYJHKANFRUTPYLOHVOHRWFAFXFVIJVIYCKUSESUDSOTONOHDBYJOCNGIUFHIDISSOREY
GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "TOKYO" }
advanced
en
72
72
cipher_museum
2.0
public
null
null
gronsfeld-v3-0009
SFOEFSVOUPDBFTBS
SFOEFSVOUPDBFTBS
RENDER UNTO CAESAR
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "11111" }
intermediate
en
16
16
cipher_museum
2.0
public
null
null
nihilist-v2-0252
36 66 68 24 24 40 86 58 27 79 53 36 66
36 66 68 24 24 40 86 58 27 79 53 36 66
AWAIT MY SIGNAL
nihilist
nihilist
fractionation
{ "polybius": "TRIUMPH", "keyword": "JUSTICE" }
advanced
en
26
38
cipher_museum
2.0
public
null
null
cda-0021147
.. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ...
.. ... .. .... ... . ... . . ... .. .... ... ..... .. ... . ..... .... .. .... ..... .... ... . ..... .... ... ... . .. .... ... ... . ..... . . .... .. . . ... . .. .. . ..... . .. .... .. . . .... .... ... .... . ..... ... ... . ... .... .. ..... .... ... ..... .... .... . .. ... ...
HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ATBASH ENCODES BY REVERSING THE ALPHABET FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS
tap_code
tap_code
null
{}
hard
en
123
123
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-0009111
CHOY VPVA SENF GEHP GHER QRFR EIRF PNER SHYQ RFVT ABCR AFBH EPRG BBYF NYYB JVAQ RCRA QRAG IREV SVPN GVBA
CHOY VPVA SENF GEHP GHER QRFR EIRF PNER SHYQ RFVT ABCR AFBH EPRG BBYF NYYB JVAQ RCRA QRAG IREV SVPN GVBA
PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
rot13
rot13
null
{ "shift": 13 }
hard
en
84
84
synthetic_educational
null
null
[]
cda-0013665
CLAG IAIH DZEH DZEH GAHG AHDZ EHAK EHDI GLIN ITKI NDZE HGLO EIHW OLLA CHEE TSAH BEGA HDZE HCLA GIAI HGAH AKHA BENO DAIH MOAS ITKI NSHU SHTK INDI BEHY AZZI ETKI NTHA NZIE TSAH ASZI HNAA STSO SIWO LLAC HEET HANZ IETH ANZI EDZE HGAH TKIN TSAH GAHD ZEHD IBEH DZEH
CLAG IAIH DZEH DZEH GAHG AHDZ EHAK EHDI GLIN ITKI NDZE HGLO EIHW OLLA CHEE TSAH BEGA HDZE HCLA GIAI HGAH AKHA BENO DAIH MOAS ITKI NSHU SHTK INDI BEHY AZZI ETKI NTHA NZIE TSAH ASZI HNAA STSO SIWO LLAC HEET HANZ IETH ANZI EDZE HGAH TKIN TSAH GAHD ZEHD IBEH DZEH
PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION CAREFULLY
navajo_code
navajo_code
null
{}
hard
en
208
208
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
cardano-autokey-v3-0044
FALVRITHWYYRIZDZW
FALVRITHWYYRIZDZW
THE RAILWAY ARRIVES
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MILAN" }
advanced
en
17
17
cipher_museum
2.0
public
null
null
venona-pad-reuse-v2-0012
DIZSKKCAJCMIALDSFAM
DIZSKKCAJCMIALDSFAM
MISSION ACCOMPLISHED
venona_pad_reuse
venona_pad_reuse
stream
{ "type": "keyword", "value": "PALACE" }
expert
en
19
19
cipher_museum
2.0
public
null
null
adfgx-v2-0596
GFAGAGADXXDGGDDXFFGAGFAAADAD
GFAGAGADXXDGGDDXFFGAGFAAADAD
TARGET ACQUIRED
adfgx
adfgx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
28
28
cipher_museum
2.0
public
null
null
rail-fence-vg-0063
TSTTRHETNITHESEVIEFUEKFHRSLUBWREAPLOW
TSTTRHETNITHESEVIEFUEKFHRSLUBWREAPLOW
THE HARVEST IS PLENTIFUL BUT THE WORKERS FEW
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 5 }
intermediate
en
37
37
cipher_museum
2.0
public
null
null
playfair-v2-0997
RTIXMCSZUROCSGAEUAWRRAOUCQSAVSAPVIFZWRRAOUCQSAVRCTEREADRURPAFRZRSGRMZORY
RTIXMCSZUROCSGAEUAWRRAOUCQSAVSAPVIFZWRRAOUCQSAVRCTEREADRURPAFRZRSGRMZORY
ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS
playfair
playfair
polygraphic
{ "type": "keyword", "value": "COURAGE" }
intermediate
en
72
72
cipher_museum
2.0
public
null
null
two-square-v3-0146
YVOROAAUYNWRRGEDRICXELLOWWSRDAQFSORRYIDDXHDNOTYFTXELBOTHDKDBEOPFYFTXELER
YVOROAAUYNWRRGEDRICXELLOWWSRDAQFSORRYIDDXHDNOTYFTXELBOTHDKDBEOPFYFTXELER
TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER
two_square
two_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
72
72
cipher_museum
2.0
public
null
null
wheatstone-v3-0168
CAKARLIPLTTMKIADTEATEFRDLRJYFKLDLRFKCSWAAPLNRMSSBRLKNABMIIMWFKCTEAORALHMUT
CAKARLIPLTTMKIADTEATEFRDLRJYFKLDLRFKCSWAAPLNRMSSBRLKNABMIIMWFKCTEAORALHMUT
GENERAL PATTON LED THE THIRD ARMY IN A DARING SWEEP ACROSS FRANCE FOLLOWING THE BREAKOUT
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "LONDON" }
advanced
en
74
74
cipher_museum
2.0
public
null
null
nomenclator-v2-0367
25 05 19 20 05 18 04 01 25 04 05 03 05 13 02 05 18 19 05 22 05 14 20 08 14 09 14 05 20 05 05 14 06 15 18 20 25 15 14 05 01 04 01 20 05 23 08 09 03 08 23 09 12 12 12 09 22 05 64 09 14 06 01 13 25 60 21 14 09 20 05 04 19 20 01 20 05 19 62 01 13 05 18 09 03 01 23 01 19 19 21 04 04 05 14 12 25 61 04 05 12 09 02 05 18 01 20...
25 05 19 20 05 18 04 01 25 04 05 03 05 13 02 05 18 19 05 22 05 14 20 08 14 09 14 05 20 05 05 14 06 15 18 20 25 15 14 05 01 04 01 20 05 23 08 09 03 08 23 09 12 12 12 09 22 05 64 09 14 06 01 13 25 60 21 14 09 20 05 04 19 20 01 20 05 19 62 01 13 05 18 09 03 01 23 01 19 19 21 04 04 05 14 12 25 61 04 05 12 09 02 05 18 01 20...
YESTERDAY DECEMBER SEVENTH NINETEEN FORTY ONE A DATE WHICH WILL LIVE IN INFAMY THE UNITED STATES OF AMERICA WAS SUDDENLY AND DELIBERATELY ATTACKED BY NAVAL AND AIR FORCES OF THE EMPIRE OF JAPAN
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
298
446
cipher_museum
2.0
public
null
null
cda-0018517
okal okeedy shal otain otedy raiin qokedy qokedy qokeedy chol okain otain
okal okeedy shal otain otedy raiin qokedy qokedy qokeedy chol okain otain
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
voynich_render
voynich_render
null
{}
medium
en
62
62
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
diana-v3-0607
QNOPVUYXUGTGVWWQLTFCRJCZCUPQXMQTXPKXTOCUXPVCALHRARQZAAPYRISJAPYBBAPEQKWTBPISEIJO
QNOPVUYXUGTGVWWQLTFCRJCZCUPQXMQTXPKXTOCUXPVCALHRARQZAAPYRISJAPYBBAPEQKWTBPISEIJO
THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
80
80
cipher_museum
2.0
public
null
null
adfgx-v2-0195
DGAAGGFDFFDXAGDGAXFXDGDXXAAFGFFADGDXAADAGGDXGFAFDDAAFAFFGXDXAFAAGXDXGAGDGADAGFFDGADGGGDAGDAXDAGDAXGDGAFDFDXADAFAAAAXAAADAXAADDFFAXADDGAAAXDAFFDDDXDAGFDXDFAAAG
DGAAGGFDFFDXAGDGAXFXDGDXXAAFGFFADGDXAADAGGDXGFAFDDAAFAFFGXDXAFAAGXDXGAGDGADAGFFDGADGGGDAGDAXDAGDAXGDGAFDFDXADAFAAAAXAAADAXAADDFFAXADDGAAAXDAFFDDDXDAGFDXDFAAAG
NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES
adfgx
adfgx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
158
158
cipher_museum
2.0
public
null
null
cda-0018551
lkaiin kaiiin ctaiin dainy cheol choldaiin qokal otol okal cheol cheol kaiiin cheol okeedy dainy daral otedy chol chedy sheedy choldaiin chor chedal dal chedal qokal otedy shor okshy qokeedy dal aiiin daiin ykcheol oxed qokeedy sheedy chol chol shal daiin okeedy ctaiin shal ytaiin qokeedy lkaiin dainy otaiin ytedy ched...
lkaiin kaiiin ctaiin dainy cheol choldaiin qokal otol okal cheol cheol kaiiin cheol okeedy dainy daral otedy chol chedy sheedy choldaiin chor chedal dal chedal qokal otedy shor okshy qokeedy dal aiiin daiin ykcheol oxed qokeedy sheedy chol chol shal daiin okeedy ctaiin shal ytaiin qokeedy lkaiin dainy otaiin ytedy ched...
THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY FAIL CLOSED IS A POSTURE NOT A SLOGAN HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS
voynich_render
voynich_render
null
{}
hard
en
304
304
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
cda-0015274
troop hence enemy flank radio issue enemy daily major above night troop enter swift turns upper shore exact seeks three hence eight issue night drive
troop hence enemy flank radio issue enemy daily major above night troop enter swift turns upper shore exact seeks three hence eight issue night drive
THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH
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.
beaufort-de-006
PWYVKCPAZNMHORKPXPFWKYKGSRJRMAREL
PWYVKCPAZNMHORKPXPFWKYKGSRJRMAREL
DIE WURDE DES MENSCHEN IST UNANTASTBAR
beaufort
beaufort
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
de
33
33
cipher_museum
0.2
public
null
null
adfgvx-v2-0290
XGVGAGDFDFDADDAXDFFXGFDDAFADVADVDXDADAAFFDAD
XGVGAGDFDFDADDAXDFFXGFDDAFADVADVDXDADAAFFDAD
FLEET ASSEMBLES AT HARBOR
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
44
44
cipher_museum
2.0
public
null
null
geez-monastic-v2-0006
LAJTPUUYUAJVI
LAJTPUUYUAJVI
THE PASS IS HELD
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "ETHIOPIA" }
advanced
en
13
13
cipher_museum
2.0
public
null
null
diana-v2-0116
YTJVQAOSVUGZKWYZAAOSVZEGGNZNIREHGCSRHWUZSNYMCYAODEAYRLAWJTPRZHTPAZKWCCEONHGUAQNIFDAYKWVNWGGENNAAZTJPAZYMWCLKFCVSKGKWCCEONHGUAJEHGCPRYTVSZAJUGNADXIACMZMMWZWZEABCMRHW
YTJVQAOSVUGZKWYZAAOSVZEGGNZNIREHGCSRHWUZSNYMCYAODEAYRLAWJTPRZHTPAZKWCCEONHGUAQNIFDAYKWVNWGGENNAAZTJPAZYMWCLKFCVSKGKWCCEONHGUAJEHGCPRYTVSZAJUGNADXIACMZMMWZWZEABCMRHW
THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME TO LIE DOWN IN GREEN PASTURES HE LEADETH ME BESIDE THE STILL WATERS HE RESTORETH MY SOUL HE LEADETH ME IN THE PATHS OF RIGHTEOUSNESS FOR HIS NAME SAKE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "RANGER" }
intermediate
en
164
164
cipher_museum
2.0
public
null
null
typex-v2-0050
SNIIWAWEFSXNVWVTAKVTJVCHPWTPWXZVOFSUWUZMLJFTVKQBOBIGOIPKMJMQXUZLRROFENDQKL
SNIIWAWEFSXNVWVTAKVTJVCHPWTPWXZVOFSUWUZMLJFTVKQBOBIGOIPKMJMQXUZLRROFENDQKL
GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW
typex
typex
machine
{ "type": "keyword", "value": "LONDON" }
expert
en
74
74
cipher_museum
2.0
public
null
null
solitaire-v2-0033
SHTMZLZGAFKUP
SHTMZLZGAFKUP
ANNUIT COEPTIS
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
13
13
cipher_museum
2.0
public
null
null
fractionated-morse-v2-0393
MGBLDXMIGTNBSEGTANL
MGBLDXMIGTNBSEGTANL
ABORT AND WITHDRAW
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
19
19
cipher_museum
2.0
public
null
null
playfair-v3-0430
MLIABOFRPLDKNALPAENACRRKLUDUKFWMKYKDZDRORBPLEFODPLBXKWNPLOEDECAIXFGBWMNKDEXE
MLIABOFRPLDKNALPAENACRRKLUDUKFWMKYKDZDRORBPLEFODPLBXKWNPLOEDECAIXFGBWMNKDEXE
CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS
playfair
playfair
polygraphic
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
76
76
cipher_museum
2.0
public
null
null
two-square-v2-0038
GTEERLSSLOGBCUATDEQAMU
GTEERLSSLOGBCUATDEQAMU
FLEET ASSEMBLES AT HARBOR
two_square
two_square
polygraphic
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
22
22
cipher_museum
2.0
public
null
null
monoalphabetic-v2-0855
JGIJ BJSQJ IPQ IQ SJIPJO ORUBSLKI QOJKPEOIPPL UIGGRH SBVBGI BKSBMBQ MIO QLQJH OLHJKJH
JGIJ BJSQJ IPQ IQ SJIPJO ORUBSLKI QOJKPEOIPPL UIGGRH SBVBGI BKSBMBQ MIO QLQJH OLHJKJH
ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "JUSTICE" }
beginner
en
73
85
cipher_museum
2.0
public
null
null
kl7-v2-0075
SZYIDBLFOGXFTGPNMVGXZONSFITHZYEDZWVTKDVQXUFUJEWIRAZXULAMDCEZHQPDQFLDJJZXCJZJT
SZYIDBLFOGXFTGPNMVGXZONSFITHZYEDZWVTKDVQXUFUJEWIRAZXULAMDCEZHQPDQFLDJJZXCJZJT
THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY
kl7
kl7
machine
{ "type": "seed", "value": "NATO" }
expert
en
77
77
cipher_museum
2.0
public
null
null
joseon-yeokhak-v2-0275
WZZDPWTADDTYVDSTAD
WZZDPWTADDTYVDSTAD
LOOSE LIPS SINK SHIPS
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "HANGUL" }
beginner
en
18
18
cipher_museum
2.0
public
null
null
jn25-v3-0265
21244 21249 21233 21248 21230 21233 21248 21233 21244 21259 21235 21248 21238 21236 21239 21259 21249 21248 21238 21244 21232 21239 21230 21242 21249 21248 21244 21233 21239 21242 21249 21230 21232 21255 21247 21235 21248 21245 21248 21249 21257 21246 21239 21238 21231 21239 21237 21235 21246 21246 21243 21244 21249 21...
21244 21249 21233 21248 21230 21233 21248 21233 21244 21259 21235 21248 21238 21236 21239 21259 21249 21248 21238 21244 21232 21239 21230 21242 21249 21248 21244 21233 21239 21242 21249 21230 21232 21255 21247 21235 21248 21245 21248 21249 21257 21246 21239 21238 21231 21239 21237 21235 21246 21246 21243 21244 21249 21...
TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW
jn25
jn25
codebook
{ "type": "additive", "value": "11235" }
expert
en
355
425
cipher_museum
2.0
public
null
null
chaocipher-v3-0181
PNOPHEGIMDQLYCESMBCFTQBYCKDOXCEGIFYTUUAFGWIMSYHALACKPXMSGHGDBNONAKOWIZNPRFRXDTSBSEOHIPIU
PNOPHEGIMDQLYCESMBCFTQBYCKDOXCEGIFYTUUAFGWIMSYHALACKPXMSGHGDBNONAKOWIZNPRFRXDTSBSEOHIPIU
TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
88
88
cipher_museum
2.0
public
null
null
red-type-a-v2-0128
FYWVCEQUGOWNGARYGFDUAUV
FYWVCEQUGOWNGARYGFDUAUV
CARTHAGE MUST BE DESTROYED
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "YAMATO" }
advanced
en
23
23
cipher_museum
2.0
public
null
null
affine-es-057
UP NAYC YUHHCJC PA UPDHCP EASYCS
UP NAYC YUHHCJC PA UPDHCP EASYCS
EN BOCA CERRADA NO ENTRAN MOSCAS
affine
affine
substitution
{ "type": "keyword", "value": "11,2" }
beginner
es
27
32
cipher_museum
0.2
public
null
null
cardano-autokey-v3-0018
FKVECJLVPGVGALGQILK
FKVECJLVPGVGALGQILK
TREACHERY IN THE COURT
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MILAN" }
advanced
en
19
19
cipher_museum
2.0
public
null
null
geheimschreiber-v2-0063
HXTMYVGTVWIJVPVQIYZPAVGTWTUDXAGRDXWFAVLUKYPKECQHSZUBWKBFGRCWSXNADYACECOAZE
HXTMYVGTVWIJVPVQIYZPAVGTWTUDXAGRDXWFAVLUKYPKECQHSZUBWKBFGRCWSXNADYACECOAZE
FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "BERLIN" }
expert
en
74
74
cipher_museum
2.0
public
null
null
enigma-v3-0685
QWMEFACSLTXNCRPVRXXDSGLYVHXXMUBWKWWJJHOUMQOQUJGZFOMHCRRATOJSEBJVDKWMOCCPLVGT
QWMEFACSLTXNCRPVRXXDSGLYVHXXMUBWKWWJJHOUMQOQUJGZFOMHCRRATOJSEBJVDKWMOCCPLVGT
AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES
enigma
enigma
machine
{ "type": "rotor_start", "value": "STU" }
expert
en
76
76
cipher_museum
2.0
public
null
null
great-cipher-v2-0164
149 171 177 179 117 131 132 182 167 154 171 114 158 164 136 160 154 157
149 171 177 179 117 131 132 182 167 154 171 114 158 164 136 160 154 157
FLEET ASSEMBLES AT HARBOR
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "ROSSIGNOL" }
expert
en
54
71
cipher_museum
2.0
public
null
null
straddling-checkerboard-v2-0040
35642504206255282202386299572601
35642504206255282202386299572601
NORTH STAR HOLDS FIRM COURSE
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "SENTORISCA" }
advanced
en
32
32
cipher_museum
2.0
public
null
null
voynich-render-v2-0098
fo fkadqgd hzkeorg fd ndznfd vdqx zr ovdrkq ldkffdzq dg nfzx tzxgd nizq gizx fdx cilldx fkaqdx
fo fkadqgd hzkeorg fd ndznfd vdqx zr ovdrkq ldkffdzq dg nfzx tzxgd nizq gizx fdx cilldx fkaqdx
LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES
voynich_render
voynich_render
substitution
{ "type": "none", "value": null }
expert
en
78
94
cipher_museum
2.0
public
null
null
autokey-048
YZCSHVLWBZCNRLCQSGXSDOHUQSFWEAHKMSFYAIQBLCNSIEUGVXWISLEA
YZCSHVLWBZCNRLCQSGXSDOHUQSFWEAHKMSFYAIQBLCNSIEUGVXWISLEA
IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "QUEENLY" }
intermediate
en
56
56
cipher_museum
0.2
public
null
null
kl7-v2-0091
SZYXDZSLMWJBDNEFKJKTTYNSFOIRCYWDEMPEQAHWDOFYNUGFBBIWCFNFTTBYMJGYVIKNMJHICJOXNOMT
SZYXDZSLMWJBDNEFKJKTTYNSFOIRCYWDEMPEQAHWDOFYNUGFBBIWCFNFTTBYMJGYVIKNMJHICJOXNOMT
THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW
kl7
kl7
machine
{ "type": "seed", "value": "NATO" }
expert
en
80
80
cipher_museum
2.0
public
null
null
cda-0003219
BFDCVEQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCIOFFVGLOUAHVVCIPSEUUPWIRUTLTXTGYESTWMWYSRHVYQIKXRKLWVRXRLWKQTRZHCKEUPBMHEUUYFHTFXNPJRDXZGJQPZQW
BFDCVEQBFVPCXVQEGHGWHOZGXSGCPZOXGFPQVXJYVSTCIOFFVGLOUAHVVCIPSEUUPWIRUTLTXTGYESTWMWYSRHVYQIKXRKLWVRXRLWKQTRZHCKEUPBMHEUUYFHTFXNPJRDXZGJQPZQW
MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES
autokey
autokey
null
{ "primer": "PRAYER" }
hard
en
139
139
synthetic_educational
null
null
[ "running_key_analysis", "index_of_coincidence" ]
Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack.
hill-v2-0563
UMLTHDGVCUEFLPWVVNSIRNUUNNVMUUZOYZBYJVRESRLIRWWPXDGQVAZBJSNNFUSRLIBYZLJS
UMLTHDGVCUEFLPWVVNSIRNUUNNVMUUZOYZBYJVRESRLIRWWPXDGQVAZBJSNNFUSRLIBYZLJS
WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS
hill
hill
polygraphic
{ "a": 11, "b": 3, "c": 2, "d": 5 }
advanced
en
72
72
cipher_museum
2.0
public
null
null
copiale-v2-0320
I0 M1 V3 C7 H3 E3 E1 F9 Y0 V3 A6 W6 U2 P5 P9 G3 V3 W9 W5 W4 S6 D3 Y0 O7 H0 N2 Y2 H9 W6 E3 O9 V6 I4 F9 G1 J4 O4 D8 Q5 V2 N2 X4 P6 I5 G2 I0 A2 U8 C7 C7 S6 G2 D6 V7 R7 V0 U9 S6 P5 V3 F7 J8 Q5 L3 F5 A5 U2 V7 T2 D6 L3 O2 S9 V2 P9 B8
I0 M1 V3 C7 H3 E3 E1 F9 Y0 V3 A6 W6 U2 P5 P9 G3 V3 W9 W5 W4 S6 D3 Y0 O7 H0 N2 Y2 H9 W6 E3 O9 V6 I4 F9 G1 J4 O4 D8 Q5 V2 N2 X4 P6 I5 G2 I0 A2 U8 C7 C7 S6 G2 D6 V7 R7 V0 U9 S6 P5 V3 F7 J8 Q5 L3 F5 A5 U2 V7 T2 D6 L3 O2 S9 V2 P9 B8
BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US
copiale
copiale
substitution
{ "type": "keyword", "value": "MYSTERY" }
advanced
en
152
227
cipher_museum
2.0
public
null
null
diana-v3-0322
WEKEZEUUIBBRBFUI
WEKEZEUUIBBRBFUI
PER ASPERA AD ASTRA
diana
diana
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
16
16
cipher_museum
2.0
public
null
null
monoalphabetic-vi-0051
IAR TQ KLR UASLJA WAMPY FK ELFKC CLLE BLP MR RDA NPLNAP RFJA WA WFII PAMN M DMPVAQR FB WA EL KLR CFVA TN
IAR TQ KLR UASLJA WAMPY FK ELFKC CLLE BLP MR RDA NPLNAP RFJA WA WFII PAMN M DMPVAQR FB WA EL KLR CFVA TN
LET US NOT BECOME WEARY IN DOING GOOD FOR AT THE PROPER TIME WE WILL REAP A HARVEST IF WE DO NOT GIVE UP
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "MUSEUM" }
beginner
en
81
104
cipher_museum
2.0
public
null
null