id
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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
polybius-v2-0094
44 23 15 13 24 35 23 15 42 14 24 43 25 52 11 43 24 33 51 15 33 44 15 14 12 54 31 15 34 33 12 11 44 44 24 43 44 11 11 31 12 15 42 44 24 11 42 15 33 11 24 43 43 11 33 13 15 11 42 13 23 24 44 15 13 44 11 33 14 22 42 15 11 44 23 45 32 11 33 24 43 44
44 23 15 13 24 35 23 15 42 14 24 43 25 52 11 43 24 33 51 15 33 44 15 14 12 54 31 15 34 33 12 11 44 44 24 43 44 11 11 31 12 15 42 44 24 11 42 15 33 11 24 43 43 11 33 13 15 11 42 13 23 24 44 15 13 44 11 33 14 22 42 15 11 44 23 45 32 11 33 24 43 44
THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST
polybius
polybius
substitution
{ "type": "none", "value": null }
beginner
en
164
245
cipher_museum
2.0
public
null
null
fialka-v2-0130
LQDODYNYXOKMHE
LQDODYNYXOKMHE
STORM THE BREACH
fialka
fialka
machine
{ "type": "seed", "value": "KREMLIN" }
expert
en
14
14
cipher_museum
2.0
public
null
null
typex-v3-0202
YKCUNKHTOOAQRDNNFZALAPGSBPMHBEXXUSYAWLZDZPRDUQIGJVFRVVEEXJUZWFPOOTHUZBGFRMNPYBMEKDXEIBJXBPQIIMXZZIUPVFCXMWOVZUEXUMOJYRROJXEMRFMCMAJKRIFLUVKSWWPECIPSGTNTJILTLIMZ
YKCUNKHTOOAQRDNNFZALAPGSBPMHBEXXUSYAWLZDZPRDUQIGJVFRVVEEXJUZWFPOOTHUZBGFRMNPYBMEKDXEIBJXBPQIIMXZZIUPVFCXMWOVZUEXUMOJYRROJXEMRFMCMAJKRIFLUVKSWWPECIPSGTNTJILTLIMZ
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
typex
typex
machine
{ "type": "keyword", "value": "BRITAIN" }
expert
en
160
160
cipher_museum
2.0
public
null
null
cda-0018303
1956 00377 2863 3855 00983 03859 04719 06064 01596 1327 02902 5976 00383 5119 4750 05975 6320 06604 05703 01661 04475 4731 6332 0341 6015 3789 04759 02264 00411 4491 01618 05749 05721 04746 05709 1029 04783 05731 05733 1640 0982 6327 02921 04786 04445 0366 4445 01349 1295 1629 06305 1622 01041 6353 02898 04755 4416 003...
1956 00377 2863 3855 00983 03859 04719 06064 01596 1327 02902 5976 00383 5119 4750 05975 6320 06604 05703 01661 04475 4731 6332 0341 6015 3789 04759 02264 00411 4491 01618 05749 05721 04746 05709 1029 04783 05731 05733 1640 0982 6327 02921 04786 04445 0366 4445 01349 1295 1629 06305 1622 01041 6353 02898 04755 4416 003...
FAIL CLOSED IS A POSTURE NOT A SLOGAN ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER
zimmermann
zimmermann
null
{}
hard
en
141
141
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
cda-0012399
16.4.6 18.3.5 6.4.2 10.4.10 1.3.4 19.2.4 4.5.4 4.1.5 7.1.10 9.2.3 14.3.7 9.1.3 7.2.9 10.6.10 19.1.1 14.6.4 4.4.1 10.1.10 13.2.5 20.1.5 6.3.6 2.3.3 11.6.10 3.1.2 15.1.6 13.1.4 12.5.2 7.2.9 10.1.10 8.4.1 2.1.5 1.4.4 13.3.8 6.4.2 17.6.6 19.1.6 9.1.3 3.1.6 5.5.3 15.4.3 11.2.3 19.5.5 4.5.8 5.1.7 19.3.3 11.5.2 16.5.2 14.1.7 ...
16.4.6 18.3.5 6.4.2 10.4.10 1.3.4 19.2.4 4.5.4 4.1.5 7.1.10 9.2.3 14.3.7 9.1.3 7.2.9 10.6.10 19.1.1 14.6.4 4.4.1 10.1.10 13.2.5 20.1.5 6.3.6 2.3.3 11.6.10 3.1.2 15.1.6 13.1.4 12.5.2 7.2.9 10.1.10 8.4.1 2.1.5 1.4.4 13.3.8 6.4.2 17.6.6 19.1.6 9.1.3 3.1.6 5.5.3 15.4.3 11.2.3 19.5.5 4.5.8 5.1.7 19.3.3 11.5.2 16.5.2 14.1.7 ...
THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN
arnold_andre
arnold_andre
null
{}
hard
en
185
185
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
alberti-disk-v2-0661
VJZLFOJOUMJM
VJZLFOJOUMJM
VENI VIDI VICI
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 14 }
expert
en
12
12
cipher_museum
2.0
public
null
null
lorenz-v3-0051
TWOROADSDIVERGEDINAYELLOSWOODANDTORRYMCOULDNOTTRAVELBKTHANDBEONETRAVELER
TWOROADSDIVERGEDINAYELLOSWOODANDTORRYMCOULDNOTTRAVELBKTHANDBEONETRAVELER
TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER
lorenz
lorenz
machine
{ "type": "seed", "value": "TUNNY" }
expert
en
72
72
cipher_museum
2.0
public
null
null
columnar-transposition-v2-0103
HSHEUUDCDSUSOQAASVMGSEWNTRDMDREOEPSASIOOBOEDSNAAITOMNESAIRRIHAICFNTARCOTTTNTRNLH
HSHEUUDCDSUSOQAASVMGSEWNTRDMDREOEPSASIOOBOEDSNAAITOMNESAIRRIHAICFNTARCOTTTNTRNLH
THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "PALACE" }
intermediate
en
80
80
cipher_museum
2.0
public
null
null
caesar-v2-1654
ZLSBO JV OBQOBXQ
ZLSBO JV OBQOBXQ
COVER MY RETREAT
caesar
caesar
substitution
{ "type": "shift", "value": 23 }
beginner
en
14
16
cipher_museum
2.0
public
null
null
cda-0008439
GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA N ZBQRY PNA PYNFFVSL CNGGREAF OHG VG PNA NYFB OR JEBAT
GUR ENVY SRAPR PVCURE JEVGRF GRKG VA N MVTMNT CNGGREA N ZBQRY PNA PYNFFVSL CNGGREAF OHG VG PNA NYFB OR JEBAT
THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
rot13
rot13
null
{ "shift": 13 }
hard
en
88
88
synthetic_educational
null
null
[]
bazeries-v2-0259
FENMNSCTCMYLON
FENMNSCTCMYLON
SIGNAL FIRES LIT
bazeries
bazeries
transposition
{ "type": "integer", "value": 37 }
advanced
en
14
14
cipher_museum
2.0
public
null
null
vigenere-v3-0750
OMBHDXLEMMPEHRLTFW
OMBHDXLEMMPEHRLTFW
DEAD MEN TELL NO TALES
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
18
18
cipher_museum
2.0
public
null
null
affine-v3-0039
AOL LEWLYPTLUA JVUMPYTZ
AOL LEWLYPTLUA JVUMPYTZ
THE EXPERIMENT CONFIRMS
affine
affine
substitution
{ "a": 1, "b": 7 }
beginner
en
21
23
cipher_museum
2.0
public
null
null
vigenere-es-095
GEZDVOEVPGTRCEMTGHTRLBHGERQ
GEZDVOEVPGTRCEMTGHTRLBHGERQ
EN BOCA CERRADA NO ENTRAN MOSCAS
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "CRYPTO" }
intermediate
es
27
27
cipher_museum
0.2
public
null
null
fractionated-morse-147
MSUMIATBBCSUO
MSUMIATBBCSUO
THE TRAP IS SET
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "SECRET" }
advanced
en
13
13
cipher_museum
0.2
public
null
null
vic-v3-0150
8240191891898504864882409010898618869018506080010490950104864882409086488898618869018509083858468948018985008590480
8240191891898504864882409010898618869018506080010490950104864882409086488898618869018509083858468948018985008590480
GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED
vic
vic
substitution
{ "type": "keyword", "value": "NICKEL" }
advanced
en
115
115
cipher_museum
2.0
public
null
null
nihilist-132
34 39 66 84 30 53 46 39 33 84 46 65 35 70 46 53 26
34 39 66 84 30 53 46 39 33 84 46 65 35 70 46 53 26
CRYPTOGRAPHY RULES
nihilist
nihilist
fractionation
{ "polybius": "SECRET", "keyword": "AGENTS" }
advanced
en
34
50
cipher_museum
0.2
public
null
null
double-transposition-v3-0060
FRREGAETADCORHFSLLEIYELAVAAVTVHEECOANBTRDREEIDADIUGEHDEELTTOOHGNTIBXRHHSIH
FRREGAETADCORHFSLLEIYELAVAAVTVHEECOANBTRDREEIDADIUGEHDEELTTOOHGNTIBXRHHSIH
CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS
double_transposition
double_transposition
transposition
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
74
74
cipher_museum
2.0
public
null
null
adfgx-v3-0448
FXAXAXADDDAGFAFXDFAXXFDGAFXADGFDDADADDGGXDAAXGGGXGXFDDGAXDFGXGFGXADAFDXGXXFDADFFDADFADFDGFDFDXDXGXGGGXGGAXDDXDDFGDFDAAADXGXFFGFDXAXAXDXFXGAGGGXDXDFA
FXAXAXADDDAGFAFXDFAXXFDGAFXADGFDDADADDGGXDAAXGGGXGXFDDGAXDFGXGFGXADAFDXGXXFDADFFDADFADFDGFDFDXDXGXGGGXGGAXDDXDDFGDFDAAADXGXFFGFDXAXAXDXFXGAGGGXDXDFA
GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN
adfgx
adfgx
fractionation
{ "polybius": "WISDOM", "columnar": "COURAGE" }
advanced
en
148
148
cipher_museum
2.0
public
null
null
adfgx-v3-0042
DDXGDDDGGFXGGFFADXDD
DDXGDDDGGFXGGFFADXDD
DOT DASH DOT
adfgx
adfgx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
cardano-autokey-v2-0070
CKIHAAALVRVZRARZZVDAFVXALFJZUVSTHBGALFVMLHTUPLWLSBDMLTBPJZQKAJHMNFVURCF
CKIHAAALVRVZRARZZVDAFVXALFJZUVSTHBGALFVMLHTUPLWLSBDMLTBPJZQKAJHMNFVURCF
QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MILAN" }
advanced
en
71
71
cipher_museum
2.0
public
null
null
adfgx-029
DGAFDXGFXXXFFXFAGFGDXAAFXDXGDGFX
DGAFDXGFXXXFFXFAGFGDXAAFXDXGDGFX
LOCK DOWN ALL GATES
adfgx
adfgx
fractionation
{ "polybius": "PRIVACY", "columnar": "GERMAN" }
advanced
en
32
32
cipher_museum
0.2
public
null
null
confederate-vigenere-229
OWDXCILJBVHPVRCIVBGKFZYWXGKGJVYASKFZZVBGEMWTGKWERCMOBBU
OWDXCILJBVHPVRCIVBGKFZYWXGKGJVYASKFZZVBGEMWTGKWERCMOBBU
TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "VICTORY" }
intermediate
en
55
55
cipher_museum
0.2
public
null
null
m209-231
VQPHTBDXAUMPPFZNESYYQYQPRDLUOQVNLXBTADLQIWCLPNGVRDQFBPQATYCI
VQPHTBDXAUMPPFZNESYYQYQPRDLUOQVNLXBTADLQIWCLPNGVRDQFBPQATYCI
KNOWLEDGE IS POWER AND INFORMATION IS THE KEY TO VICTORY IN ANY CONFLICT
m209
m209
machine
{ "type": "seed", "value": "MUSEUM" }
expert
en
60
60
cipher_museum
0.2
public
null
null
four-square-v2-0355
TPIQLOFURODDAA
TPIQLOFURODDAA
STORM THE BREACH
four_square
four_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
14
14
cipher_museum
2.0
public
null
null
cda-0021994
XZVHZ IHSRU GVWGS VZOKS ZYVGY BGSIV VKLHR GRLMH ZOZMG FIRMT YILPV VMRTN ZDRGS XIRYH ZMWGS VYLNY VNZXS RMV
XZVHZ IHSRU GVWGS VZOKS ZYVGY BGSIV VKLHR GRLMH ZOZMG FIRMT YILPV VMRTN ZDRGS XIRYH ZMWGS VYLNY VNZXS RMV
CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
atbash
atbash
null
{}
hard
en
88
88
synthetic_educational
null
null
[ "self_inverse_check", "frequency_analysis" ]
Atbash maps A↔Z, B↔Y, … and is its own inverse.
culper-ring-039
998 805 814 817 819 820 813 804 999 998 805 800 821 814 817 818 999 100 998 801 814 811 803 999 102 100 998 801 817 800 821 804 999 137 998 803 800 817 804 999 103 998 800 802 819 999
998 805 814 817 819 820 813 804 999 998 805 800 821 814 817 818 999 100 998 801 814 811 803 999 102 100 998 801 817 800 821 804 999 137 998 803 800 817 804 999 103 998 800 802 819 999
FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT
culper_ring
culper_ring
codebook
{ "type": "none", "value": null }
expert
en
138
183
cipher_museum
0.2
public
null
null
playfair-089
YDCUGMHYEPGKZIIDZCUQNFBAPQNFBAHQUPNB
YDCUGMHYEPGKZIIDZCUQNFBAPQNFBAHQUPNB
THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF
playfair
playfair
polygraphic
{ "type": "keyword", "value": "CIPHER" }
intermediate
en
36
36
cipher_museum
0.2
public
null
null
cda-0017923
11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 23 24 31 31 13 24 35 23 15 42 45 43 15 43 31 24 33 15 11 42 11 31 22 15 12 42 11 44 34 15 33 13 42 54 35 44 12 31 34 13 25 43 34 21 31 15 44 44 15 42 43 12 42 45 44 15 21 34 42 13 15 52 34...
11 32 34 14 15 31 13 11 33 13 31 11 43 43 24 21 54 35 11 44 44 15 42 33 43 12 45 44 24 44 13 11 33 11 31 43 34 12 15 52 42 34 33 22 23 24 31 31 13 24 35 23 15 42 45 43 15 43 31 24 33 15 11 42 11 31 22 15 12 42 11 44 34 15 33 13 42 54 35 44 12 31 34 13 25 43 34 21 31 15 44 44 15 42 43 12 42 45 44 15 21 34 42 13 15 52 34...
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY
polybius
polybius
null
{}
hard
en
190
190
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
kryha-v2-0102
NNXLGPGBKSXFKQEKQOBWLYRXFJPROXYYJZKMPDGGVCHVQODLQUSUITATPTOZQCICLSBHMZUNOH
NNXLGPGBKSXFKQEKQOBWLYRXFJPROXYYJZKMPDGGVCHVQODLQUSUITATPTOZQCICLSBHMZUNOH
LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT
kryha
kryha
machine
{ "type": "keyword", "value": "MUNICH" }
expert
en
74
74
cipher_museum
2.0
public
null
null
lorenz-v3-0326
TPEWINDISWITHUS
TPEWINDISWITHUS
THE WIND IS WITH US
lorenz
lorenz
machine
{ "type": "seed", "value": "BLETCHLEY" }
expert
en
15
15
cipher_museum
2.0
public
null
null
chaocipher-v3-0491
GOWXRBXYKMWGAZMOEGLTGSMSKVSBBKNKFHFDTQOAZLEUYTORTQHXJELMSMOSWWWMHBRCOXWWKJ
GOWXRBXYKMWGAZMOEGLTGSMSKVSBBKNKFHFDTQOAZLEUYTORTQHXJELMSMOSWWWMHBRCOXWWKJ
THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "TRIUMPH" }
advanced
en
74
74
cipher_museum
2.0
public
null
null
cda-0014528
17.23.12 17.50.3 5.36.8 20.23.11 5.20.2 9.40.2 18.36.14 12.50.12 1.24.5 18.20.7 2.23.10 8.42.7 18.4.5 5.1.13 4.29.4 20.47.11 8.46.4 1.1.7 17.27.7 10.4.15 11.23.10 12.37.2 11.7.14 17.8.10 13.49.4 1.43.8 14.23.14 8.10.2 3.26.15 15.11.8 1.29.8 7.17.6 18.2.5 6.29.11 18.5.12 17.44.15 4.48.2 14.47.6 12.33.9 2.33.1 2.33.15 7....
17.23.12 17.50.3 5.36.8 20.23.11 5.20.2 9.40.2 18.36.14 12.50.12 1.24.5 18.20.7 2.23.10 8.42.7 18.4.5 5.1.13 4.29.4 20.47.11 8.46.4 1.1.7 17.27.7 10.4.15 11.23.10 12.37.2 11.7.14 17.8.10 13.49.4 1.43.8 14.23.14 8.10.2 3.26.15 15.11.8 1.29.8 7.17.6 18.2.5 6.29.11 18.5.12 17.44.15 4.48.2 14.47.6 12.33.9 2.33.1 2.33.15 7....
HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE
book_cipher
book_cipher
null
{}
hard
en
140
140
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
typex-v3-0211
HVTXPJJYPBOBNGAKWZGWBWO
HVTXPJJYPBOBNGAKWZGWBWO
ROME WAS NOT BUILT IN ONE DAY
typex
typex
machine
{ "type": "keyword", "value": "EMPIRE" }
expert
en
23
23
cipher_museum
2.0
public
null
null
slidex-v3-0210
BDIFVJNOELBXBIQISF
BDIFVJNOELBXBIQISF
CROSS THE RUBICON NOW
slidex
slidex
transposition
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
18
18
cipher_museum
2.0
public
null
null
fialka-v2-0013
KFMVWEAJMIVPB
KFMVWEAJMIVPB
STAY THE COURSE
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
13
13
cipher_museum
2.0
public
null
null
confederate-vigenere-v2-0376
XTQZELVQMPOQDMRFMAMVLDBLJUWJLIFZVXXHLDMVPIKMRLOJIXUICNMFQKLMFIQMWWPXBIQMJGTDVWMVGQSQWLWKAEUMZWRFMKBVDBBLEWKXTELAZWRIQOUMQOQPIGMZMTWQLVSSMOIXLWKNSUBFBYGMEIWVCZKIHLBL
XTQZELVQMPOQDMRFMAMVLDBLJUWJLIFZVXXHLDMVPIKMRLOJIXUICNMFQKLMFIQMWWPXBIQMJGTDVWMVGQSQWLWKAEUMZWRFMKBVDBBLEWKXTELAZWRIQOUMQOQPIGMZMTWQLVSSMOIXLWKNSUBFBYGMEIWVCZKIHLBL
ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "DIXIE" }
intermediate
en
164
164
cipher_museum
2.0
public
null
null
kryptos-v2-0291
KQYASLVPFBSYXBDVQHRIMPXF
KQYASLVPFBSYXBDVQHRIMPXF
TORPEDO AWAY ALL HANDS BRACE
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "VIRTUAL" }
advanced
en
24
24
cipher_museum
2.0
public
null
null
gronsfeld-v2-0770
QSGVXUIGDYUBEN
QSGVXUIGDYUBEN
PRESS THE ATTACK
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "11235" }
intermediate
en
14
14
cipher_museum
2.0
public
null
null
kama-sutra-v2-0333
KVFTGBWEZKY TDJTGZLTYE WYX GTWFKY WGT EQT EQGTT JZMMWGF KS WMM FUZTYEZSZU ZYHCZGN WYX JGKRGTFF
KVFTGBWEZKY TDJTGZLTYE WYX GTWFKY WGT EQT EQGTT JZMMWGF KS WMM FUZTYEZSZU ZYHCZGN WYX JGKRGTFF
OBSERVATION EXPERIMENT AND REASON ARE THE THREE PILLARS OF ALL SCIENTIFIC INQUIRY AND PROGRESS
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "INDIA" }
intermediate
en
81
94
cipher_museum
2.0
public
null
null
affine-vf-0079
GPONYQWRWJ KW HQ HQ EN PWOJNEXK OY NQ NPW XQJH OBH BQN CBNQ MWB LQJ PEY AXQJK EY AJWON
GPONYQWRWJ KW HQ HQ EN PWOJNEXK OY NQ NPW XQJH OBH BQN CBNQ MWB LQJ PEY AXQJK EY AJWON
WHATSOEVER YE DO DO IT HEARTILY AS TO THE LORD AND NOT UNTO MEN FOR HIS GLORY IS GREAT
affine
affine
substitution
{ "a": 15, "b": 14 }
beginner
en
68
86
cipher_museum
2.0
public
null
null
fractionated-morse-033
JRSHVQUCKPUUFGQJPUTRJXHPFAJFURPFAJFUJUAEPF
JRSHVQUCKPUUFGQJPUTRJXHPFAJFURPFAJFUJUAEPF
THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "ROUNDTABLE" }
advanced
en
42
42
cipher_museum
0.2
public
null
null
adfgvx-v2-0247
ADADDAAFADDDDXGDFGDXFVGGAGAGAXDXGXFXADGXDGDDVFGDGAVDGDFDVGFAVAXAGFVAGFGADFGFDAVFVDDFGDVDVAFVVDVAVAFAFADAVFVFXAAGVAFAVGVADFAAGAXAFDGGDFAAGFAADFXAFAXAAAGDDDGFXAVFVFXAVAGAXGDAAVGVAAAGFVAGFAAFDGAVFXDFAAFAAGFFAGFVGXAGDVXFGGDGDAXFVAAFGGVDDGVAGDAGXAGADDFGXAGAFAVADDAGGXAGFXAGDVDGGXDGDGAAADDXDDDXAXAXDXFGDFFD
ADADDAAFADDDDXGDFGDXFVGGAGAGAXDXGXFXADGXDGDDVFGDGAVDGDFDVGFAVAXAGFVAGFGADFGFDAVFVDDFGDVDVAFVVDVAVAFAFADAVFVFXAAGVAFAVGVADFAAGAXAFDGGDFAAGFAADFXAFAXAAAGDDDGFXAVFVFXAVAGAXGDAAVGVAAAGFVAGFAAFDGAVFXDFAAFAAGFFAGFVGXAGDVXFGGDGDAXFVAAFGGVDDGVAGDAGXAGADDFGXAGAFAVADDAGGXAGFXAGDVDGGXDGDGAAADDXDDDXAXAXDXFGDFFD
AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA
adfgvx
adfgvx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
300
300
cipher_museum
2.0
public
null
null
rail-fence-la-036
EBMPIUULRSNUU
EBMPIUULRSNUU
E PLURIBUS UNUM
rail_fence
rail_fence
transposition
{ "type": "shift", "value": 4 }
intermediate
la
13
13
cipher_museum
0.2
public
null
null
adfgx-v3-0099
ADGFADFGGAAXFFADXDDAGXDFADGADGAXGGAADDXD
ADGFADFGGAAXFFADXDDAGXDFADGADGAXGGAADDXD
THE LEGIONS STAND READY
adfgx
adfgx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
40
40
cipher_museum
2.0
public
null
null
bazeries-v3-0222
YUGCYVOLUTLRRNLHYE
YUGCYVOLUTLRRNLHYE
LOWER THE DRAWBRIDGE
bazeries
bazeries
transposition
{ "type": "integer", "value": 37 }
advanced
en
18
18
cipher_museum
2.0
public
null
null
bifid-v3-0169
FAOOFHROFFSNNRPSVFTFSGNXRTOGFKGGTMBRTFVMMOTSPDYHTGNWKSNDYPSNEKBXCHSBNDNZKHTDBHRPANNXIVWU
FAOOFHROFFSNNRPSVFTFSGNXRTOGFKGGTMBRTFVMMOTSPDYHTGNWKSNDYPSNEKBXCHSBNDNZKHTDBHRPANNXIVWU
TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE
bifid
bifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
88
88
cipher_museum
2.0
public
null
null
vigenere-v3-1131
GSECBUCJZVKURDIVCSGRSZBKFUSCOIAMGCGYCISBUCJZVKURKZAVBIKYSISRSWAUKOSXBFDZRRXLWGGVST
GSECBUCJZVKURDIVCSGRSZBKFUSCOIAMGCGYCISBUCJZVKURKZAVBIKYSISRSWAUKOSXBFDZRRXLWGGVST
ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "HONOR" }
intermediate
en
82
82
cipher_museum
2.0
public
null
null
cda-0009700
UWFG BEVQ OYQV CUNE FOER GNOQ VNEF ABGC EBGN QGWB AZBR SEAR AQEL CGVB AWFA BGPE BNSA NLYS GGNE SESD HNAN LOZB RRYQ OAQY OFFW TLCO GGSE AFNH GWGQ OAOY FBPN JEBA UOAO SSWA SQVC USEO CCYV SFOY VANO ETHA NGWB AGBR OQVY NGGN E
UWFG BEVQ OYQV CUNE FOER GNOQ VNEF ABGC EBGN QGWB AZBR SEAR AQEL CGVB AWFA BGPE BNSA NLYS GGNE SESD HNAN LOZB RRYQ OAQY OFFW TLCO GGSE AFNH GWGQ OAOY FBPN JEBA UOAO SSWA SQVC USEO CCYV SFOY VANO ETHA NGWB AGBR OQVY NGGN E
HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER
porta
porta
null
{ "key": "JUSTICE" }
hard
en
177
177
synthetic_educational
null
null
[]
cda-0021576
ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA ABAAA AAABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABB BAAAB AABAA ABABB BAABB ABABA BAABA ABAAA ABBBA ABABA AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA BAAAB AABBB ABAAA AABAB BAABA BAAAB BAABA AABBB AABAA AABAB BAAAA ABAAA AABAA AA...
ABBBA ABBAB ABABA BABBA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA ABAAA AAABA AAABA ABAAA ABBBA AABBB AABAA BAAAA BAAAB BAABB BAAAB AABAA ABABB BAABB ABABA BAABA ABAAA ABBBA ABABA AABAA AAAAA ABABA ABBBA AABBB AAAAA AAAAB AABAA BAABA BAAAB AABBB ABAAA AABAB BAABA BAAAB BAABA AABBB AABAA AABAB BAAAA ABAAA AABAA AA...
POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
bacon_cipher
bacon_cipher
null
{}
hard
en
730
730
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
two-square-123
SKFADTUBQKFACV
SKFADTUBQKFACV
CHANGE OF PLANS
two_square
two_square
polygraphic
{ "key1": "SECRET", "key2": "AGENTS" }
advanced
en
14
14
cipher_museum
0.2
public
null
null
cda-0021101
WOLL ACHE ENAA STSO SIAK HABE DZEH DIBE HYAZ ZIEM OASI WOLL ACHE ETSA HMOA SIDI BEHY AZZI EWOL LACH EEDI BEHD IBEH TKIN MAET SAHA SZIH CLAG IAIH WOLL ACHE ETHA NZIE THAN ZIED ZEHG AHTS AHDI BEHS HUSH NODA IHTH ANZI ETKI NTHA NZIE MOAS IWOL LACH EETS AHWO LLAC HEED IBEH YAZZ IEDI BEHA KHAS HUSH DZEH GLOE IH
WOLL ACHE ENAA STSO SIAK HABE DZEH DIBE HYAZ ZIEM OASI WOLL ACHE ETSA HMOA SIDI BEHY AZZI EWOL LACH EEDI BEHD IBEH TKIN MAET SAHA SZIH CLAG IAIH WOLL ACHE ETHA NZIE THAN ZIED ZEHG AHTS AHDI BEHS HUSH NODA IHTH ANZI ETKI NTHA NZIE MOAS IWOL LACH EETS AHWO LLAC HEED IBEH YAZZ IEDI BEHA KHAS HUSH DZEH GLOE IH
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
navajo_code
navajo_code
null
{}
hard
en
246
246
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
columnar-transposition-fr-036
EMTRFEEDSNALTEEAFCLOSSERAUGASETTEERSSELDI
EMTRFEEDSNALTEEAFCLOSSERAUGASETTEERSSELDI
LE SECRET EST L AME DE TOUTES LES GRANDES AFFAIRES
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "KEYWORD" }
intermediate
fr
41
41
cipher_museum
0.2
public
null
null
cda-0021954
ZM ZUURMV XRKSVI ZKKORVH Z ORMVZI UFMXGRLM GL VZXS OVGGVI
ZM ZUURMV XRKSVI ZKKORVH Z ORMVZI UFMXGRLM GL VZXS OVGGVI
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER
atbash
atbash
null
{}
medium
en
48
48
synthetic_educational
null
null
[ "self_inverse_check", "frequency_analysis" ]
Atbash maps A↔Z, B↔Y, … and is its own inverse.
cda-0019860
19.4.9 10.5.9 17.6.2 13.1.6 19.1.5 11.4.8 3.1.2 4.4.2 9.5.4 18.3.4 12.5.4 19.5.7 9.3.8 6.3.9 17.5.6 20.1.5 13.5.5 9.2.3 8.3.6 1.5.10 3.1.8 8.5.6 17.2.7 20.6.5 10.2.10 20.2.8 9.4.8 13.6.3 13.5.2 4.3.2 15.6.7 17.5.8 2.1.9 11.4.6 12.4.9
19.4.9 10.5.9 17.6.2 13.1.6 19.1.5 11.4.8 3.1.2 4.4.2 9.5.4 18.3.4 12.5.4 19.5.7 9.3.8 6.3.9 17.5.6 20.1.5 13.5.5 9.2.3 8.3.6 1.5.10 3.1.8 8.5.6 17.2.7 20.6.5 10.2.10 20.2.8 9.4.8 13.6.3 13.5.2 4.3.2 15.6.7 17.5.8 2.1.9 11.4.6 12.4.9
EVERY SYSTEM NEEDS AN HONEST THREAT MODEL
arnold_andre
arnold_andre
null
{}
medium
en
35
35
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
adfgvx-210
FFGGDXXXAFDXDDVFAAAVDA
FFGGDXXXAFDXDDVFAAAVDA
RALLY AT DAWN
adfgvx
adfgvx
fractionation
{ "polybius": "ENIGMA", "columnar": "CRYPTO" }
advanced
en
22
22
cipher_museum
0.2
public
null
null
venona-pad-reuse-v2-0043
ORPVKXXIZTFA5O7LMBZIYAPH4EIIMQ5NPSQXIEFURSPRIFJK3RDSFA5
ORPVKXXIZTFA5O7LMBZIYAPH4EIIMQ5NPSQXIEFURSPRIFJK3RDSFA5
BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES
venona_pad_reuse
venona_pad_reuse
stream
{ "type": "keyword", "value": "PALACE" }
expert
en
55
55
cipher_museum
2.0
public
null
null
bifid-v2-0094
RPIBRNOCMVNAHPMBTNQPBTIQINQIPQFQCLDQCGIMTUYPZDLDFCETWCOYATLRFEGAHRLKTWGVUTGGHGZKQN
RPIBRNOCMVNAHPMBTNQPBTIQINQIPQFQCLDQCGIMTUYPZDLDFCETWCOYATLRFEGAHRLKTWGVUTGGHGZKQN
THE CIPHER DISK WAS INVENTED BY LEON BATTISTA ALBERTI A RENAISSANCE ARCHITECT AND GREAT HUMANIST
bifid
bifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
cda-0015762
... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . .....
... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . .....
PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE INDEX OF COINCIDENCE IS A USEFUL CLUE
tap_code
tap_code
null
{}
hard
en
181
181
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.
navajo-code-v3-0039
THAN-ZIE LIN DZEH / DZEH AL-NA-AS-DZOH CLA-GI-AIH DZEH DAH-NES-TSA YEH-HES BE-TAS-TNI DZEH A-CHIN A-WOH / MOASI TLO-CHIN TSAH MA-E TKIN DAH-NES-TSA BE-TAS-TNI KLESH
THAN-ZIE LIN DZEH / DZEH AL-NA-AS-DZOH CLA-GI-AIH DZEH DAH-NES-TSA YEH-HES BE-TAS-TNI DZEH A-CHIN A-WOH / MOASI TLO-CHIN TSAH MA-E TKIN DAH-NES-TSA BE-TAS-TNI KLESH
THE EXPERIMENT CONFIRMS
navajo_code
navajo_code
code
{ "type": "none", "value": null }
expert
en
142
172
cipher_museum
2.0
public
null
null
jefferson-disk-v2-0103
SIIHHDZVAHCIVIDAYQOYXBUSMRCYMKSRCRUBSMXAVXSBSZEXKMDJZPSVXXEGVRVDJIKVZOMUNERMMBYJ
SIIHHDZVAHCIVIDAYQOYXBUSMRCYMKSRCRUBSMXAVXSBSZEXKMDJZPSVXXEGVRVDJIKVZOMUNERMMBYJ
THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ
jefferson_disk
jefferson_disk
disk
{ "type": "disk_order", "value": "4,2,6,1,3,5" }
expert
en
80
80
cipher_museum
2.0
public
null
null
hill-v2-0529
ATOAERRFJKDWXA
ATOAERRFJKDWXA
TRUST BUT VERIFY
hill
hill
polygraphic
{ "a": 11, "b": 3, "c": 2, "d": 5 }
advanced
en
14
14
cipher_museum
2.0
public
null
null
cda-0014953
3 72 14 91 33 35 49 63 88 33 3 11 34 22 82 64 1 24 34 59 64 59 70 82 63 34 33 50 87 34 59 67 48 64 24 23 45 4 23 25 58 93 21 63 27 60 25 33 34 15 91 94 48 59 15 64 22 53 76 46 35 26 59 81 21 49 64 22 15 21 33 93 50 27 14 11 48 46 14 39 87 39 32 23
3 72 14 91 33 35 49 63 88 33 3 11 34 22 82 64 1 24 34 59 64 59 70 82 63 34 33 50 87 34 59 67 48 64 24 23 45 4 23 25 58 93 21 63 27 60 25 33 34 15 91 94 48 59 15 64 22 53 76 46 35 26 59 81 21 49 64 22 15 21 33 93 50 27 14 11 48 46 14 39 87 39 32 23
ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE INDEX OF COINCIDENCE IS A USEFUL CLUE
homophonic
homophonic
null
{}
hard
en
84
84
synthetic_educational
null
null
[ "frequency_analysis", "multiple_ciphertext_attack" ]
Homophonic substitution: each letter maps to multiple possible numbers.
joseon-yeokhak-v2-0195
CBQSIDCBOAWRBWUVHRFSOFMKVWZSWDCBRSFSRKSOYOBRKSOFMCJSFAOBMOEIOWBHJCZIASCTZCFS
CBQSIDCBOAWRBWUVHRFSOFMKVWZSWDCBRSFSRKSOYOBRKSOFMCJSFAOBMOEIOWBHJCZIASCTZCFS
ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "JOSEON" }
beginner
en
76
76
cipher_museum
2.0
public
null
null
copiale-120
E6 V7 U7 O7 T8 D1 E2 D1 Y0 U7 L1 C9 O6 F0 O5 Q3 D3 B9 A1 L2 T8 W8 O3 R9 B5 E7 G3 S1 C9 B8 O4 E6 Q2 E8 P7 O5 K6 B6 E9 T3 S8 K9 I3 E9 B7 P7 S1 X7 U7 O2 G8 E8 B6 B0 Z1 O2 W9 R9 D0 C6 H7 O7 L2 A1 E6 S7 Z7 S3 P7 D9 A7 A3 V7 A0 O5 X9 L9 U5 P1 A0 L1 N0 D3 P3 M8 C3 D2 N9 B3 A4 R9 A4 P3 B8 A2 S8 C7 C6 Y9 T8 R2 R9 V7 D0 N9 S1 N0...
E6 V7 U7 O7 T8 D1 E2 D1 Y0 U7 L1 C9 O6 F0 O5 Q3 D3 B9 A1 L2 T8 W8 O3 R9 B5 E7 G3 S1 C9 B8 O4 E6 Q2 E8 P7 O5 K6 B6 E9 T3 S8 K9 I3 E9 B7 P7 S1 X7 U7 O2 G8 E8 B6 B0 Z1 O2 W9 R9 D0 C6 H7 O7 L2 A1 E6 S7 Z7 S3 P7 D9 A7 A3 V7 A0 O5 X9 L9 U5 P1 A0 L1 N0 D3 P3 M8 C3 D2 N9 B3 A4 R9 A4 P3 B8 A2 S8 C7 C6 Y9 T8 R2 R9 V7 D0 N9 S1 N0...
CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS
copiale
copiale
substitution
{ "type": "keyword", "value": "CIPHER" }
advanced
en
286
428
cipher_museum
0.2
public
null
null
cda-0012454
--- -... ... . .-. ...- .- -... .-.. . / . ...- .. -.. . -. -.-. . / -.-. --- -- . ... / -... . ..-. --- .-. . / -.-. --- -. ..-. .. -.. . -. -.-. . / - .... . / - .-. .. - .... . -- .. ..- ... / -.-. .. .--. .... . .-. / .- -.. ...- .- -. -.-. . ... / - .... . / .- .-.. .--. .... .- -... . - / -... -.-- / --- -. . / ....
--- -... ... . .-. ...- .- -... .-.. . / . ...- .. -.. . -. -.-. . / -.-. --- -- . ... / -... . ..-. --- .-. . / -.-. --- -. ..-. .. -.. . -. -.-. . / - .... . / - .-. .. - .... . -- .. ..- ... / -.-. .. .--. .... . .-. / .- -.. ...- .- -. -.-. . ... / - .... . / .- .-.. .--. .... .- -... . - / -... -.-- / --- -. . / ....
OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS
morse_code
morse_code
null
{}
hard
en
180
180
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
hist-chinese-telegraph-001
0300 8415 0573 2134
0300 8415 0573 2134
PEACE TRADE AGREEMENT SIGNED
chinese_telegraph
chinese_telegraph
codebook
{ "codebook": "Standard Chinese Telegraph Code (Viguier Code)", "version": "1871" }
expert
zh
16
19
cipher_museum
0.2
public
null
null
rot13-de-021
URHGR QRHGFPUYNAQ ZBETRA QVR JRYG
URHGR QRHGFPUYNAQ ZBETRA QVR JRYG
HEUTE DEUTSCHLAND MORGEN DIE WELT
rot13
rot13
substitution
{ "type": "none", "value": null }
beginner
de
29
33
cipher_museum
0.2
public
null
null
autokey-069
UCEWPPDCCTNMXXESOWETU
UCEWPPDCCTNMXXESOWETU
SUPPLY LINE COMPROMISED
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
intermediate
en
21
21
cipher_museum
0.2
public
null
null
red-type-a-v2-0090
WOJETUIITANMNELCTODWAJIODUMOVHULBAGCEQVIWLUDCIKCTUMAVIWADUMWUHNYSOTXRIBYHMUM
WOJETUIITANMNELCTODWAJIODUMOVHULBAGCEQVIWLUDCIKCTUMAVIWADUMWUHNYSOTXRIBYHMUM
MARY QUEEN OF SCOTS WAS BEHEADED AFTER HER CIPHER LETTERS WERE DECODED BY THOMAS PHELIPPES
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "SAKURA" }
advanced
en
76
76
cipher_museum
2.0
public
null
null
cda-0012207
DRAF TOUT ERUP PERB ASIS LOCA LEXT RATH REER IGHT AGAI NNIG HTSH OREP ARTS OTHE RSOU THIS SUET URNS INNE RORD ERNO TESA MONG POIN TPOI NTLI GHTI NCUR EXTR A
DRAF TOUT ERUP PERB ASIS LOCA LEXT RATH REER IGHT AGAI NNIG HTSH OREP ARTS OTHE RSOU THIS SUET URNS INNE RORD ERNO TESA MONG POIN TPOI NTLI GHTI NCUR EXTR A
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF THE BEST LESSONS SHOW WHERE THE METHOD FAILS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS
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.
adfgx-v3-0028
DGDAGFGDGDGGFXGGXGGAGFXXXAFFFGAGAAFGFDAAFADDAXFXFXXXXX
DGDAGFGDGDGGFXGGXGGAGFXXXAFFFGAGAAFGFDAAFADDAXFXFXXXXX
DONT FIRE TILL YOU SEE THE WHITES
adfgx
adfgx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
54
54
cipher_museum
2.0
public
null
null
autokey-v3-0430
UIOXZVLPRNENUYMGXE
UIOXZVLPRNENUYMGXE
LOWER THE DRAWBRIDGE
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
18
18
cipher_museum
2.0
public
null
null
cda-0015297
AAAA BAAB AAAA AAAB AABB AABA BABB ABBA AAAB AABA ABAA ABAA ABBA ABAA ABBB AABA ABAA AAAA BAAA AABA ABAA AABB BABA AAAA BBAB AAAB AAAA AAAB ABAA BBAB AABA BBAA BBAB AAAA ABBA AABA AABB AAAA BAAB AAAA AABA AAAA AAAB BAAA AABB AAAB BAAB AAAA ABAB AAAA BABB AABB BABA ABAB AAAB ABAA ABAA BABA AABA ABAA ABAB AAAB ABBA ABAA ...
AAAA BAAB AAAA AAAB AABB AABA BABB ABBA AAAB AABA ABAA ABAA ABBA ABAA ABBB AABA ABAA AAAA BAAA AABA ABAA AABB BABA AAAA BBAB AAAB AAAA AAAB ABAA BBAB AABA BBAA BBAB AAAA ABBA AABA AABB AAAA BAAB AAAA AABA AAAA AAAB BAAA AABB AAAB BAAB AAAA ABAB AAAA BABB AABB BABA ABAB AAAB ABAA ABAA BABA AABA ABAA ABAB AAAB ABBA ABAA ...
BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE INDEX OF COINCIDENCE IS A USEFUL CLUE TOMORROW
bacon_cipher
bacon_cipher
null
{}
hard
en
460
460
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
joseon-yeokhak-v3-0059
BPMBPQVZMLTQVMABWWLNQZUIBJITIKTIDIIABPMZCAAQIVKIDITZGKPIZOMLIKZWAABPMXTIQV
BPMBPQVZMLTQVMABWWLNQZUIBJITIKTIDIIABPMZCAAQIVKIDITZGKPIZOMLIKZWAABPMXTIQV
THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "SEOUL" }
beginner
en
74
74
cipher_museum
2.0
public
null
null
cda-0020347
WQTBW FIXBU HXLWQ WXFGI HPSWG JLWSZ NSGMQ BHOFA MOPBC OVTCK PBTQH IOMSP UDBXQ WMTWC PVBFY QMQZL WXNOZ YFLBQ MFOZY ZPV
WQTBW FIXBU HXLWQ WXFGI HPSWG JLWSZ NSGMQ BHOFA MOPBC OVTCK PBTQH IOMSP UDBXQ WMTWC PVBFY QMQZL WXNOZ YFLBQ MFOZY ZPV
THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
vernam
vernam
null
{}
hard
en
98
98
synthetic_educational
null
null
[ "key_reuse_attack", "information_theoretic_proof" ]
Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP.
rail-fence-v3-0507
ZLNLLEALKOAIEFRSOEWENSOFWVLVGTKOOOEETINONRDRHEOREPGTEGWPPOEUKDLEATWONEEGRYIHOLDTTW
ZLNLLEALKOAIEFRSOEWENSOFWVLVGTKOOOEETINONRDRHEOREPGTEGWPPOEUKDLEATWONEEGRYIHOLDTTW
ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 11 }
intermediate
en
82
82
cipher_museum
2.0
public
null
null
red-type-a-v2-0290
GPOESYHRINCTIDYLCAVFYB
GPOESYHRINCTIDYLCAVFYB
FLEET ASSEMBLES AT HARBOR
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "TOKYO" }
advanced
en
22
22
cipher_museum
2.0
public
null
null
cda-0002455
YULALAHEPTETHOOEAHCIAGNSSNXPDRELREOSORETNASYGINPEHRLFTTABLHKSAUTPLODUCOOHRSDCSESACRELIREMTHIEEHBMEAPFIMODIURKEIESTBHMSLOTNTEWFEOEHEIREHABTONEIETIVIIEPSPMHDGTCYTEPNIHYEEPTECETLCRTENCURTAMTENSCFYIEIMAACTLE
YULALAHEPTETHOOEAHCIAGNSSNXPDRELREOSORETNASYGINPEHRLFTTABLHKSAUTPLODUCOOHRSDCSESACRELIREMTHIEEHBMEAPFIMODIURKEIESTBHMSLOTNTEWFEOEHEIREHABTONEIETIVIIEPSPMHDGTCYTEPNIHYEEPTECETLCRTENCURTAMTENSCFYIEIMAACTLE
THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER
double_transposition
double_transposition
null
{ "key1": "LIBERTY", "key2": "PATTERN" }
hard
en
203
203
synthetic_educational
null
null
[ "key_length_search", "anagram_recovery" ]
Double columnar transposition: apply columnar twice for stronger security.
two-square-v2-0033
CKOSMBENPUQNSX
CKOSMBENPUQNSX
ANNUIT COEPTIS
two_square
two_square
polygraphic
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
14
14
cipher_museum
2.0
public
null
null
slidex-v3-0186
LVFCUCHBCBHMYGRTYTHYOZUCAKURNXFCAVILWSAOTAWJYTXQUFCKOQVCMXSVOUEWWYNXFCSSIYUCGCXCIRTAAX
LVFCUCHBCBHMYGRTYTHYOZUCAKURNXFCAVILWSAOTAWJYTXQUFCKOQVCMXSVOUEWWYNXFCSSIYUCGCXCIRTAAX
CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE
slidex
slidex
transposition
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
86
86
cipher_museum
2.0
public
null
null
red-type-a-180
HJUBWIGOWUXIMATZKYIDSIHMROOQAHNRINAWRYWRAYHVVIPYOOSXEKKOVMIYDWGIKSYHORCABYDWIKCITZKEDOKOCIMYADJIQOZSACJIENWRASYXZAJUOVQDULTUPIHUINYSEMSGAIBREWD
HJUBWIGOWUXIMATZKYIDSIHMROOQAHNRINAWRYWRAYHVVIPYOOSXEKKOVMIYDWGIKSYHORCABYDWIKCITZKEDOKOCIMYADJIQOZSACJIENWRASYXZAJUOVQDULTUPIHUINYSEMSGAIBREWD
CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "SECRET" }
advanced
en
143
143
cipher_museum
0.2
public
null
null
nihilist-045
65 67 66 45 38 77 76 36 79 49 46 78 47 50 105 59 46 108 59 40 65 47 40 86 76 67 66 45 56 69 79 58 79 45 38 76 45 67 66 66 58 99 65 67 65 79 58 99 67 39 67 55 40 99 48 67 75
65 67 66 45 38 77 76 36 79 49 46 78 47 50 105 59 46 108 59 40 65 47 40 86 76 67 66 45 56 69 79 58 79 45 38 76 45 67 66 66 58 99 65 67 65 79 58 99 67 39 67 55 40 99 48 67 75
FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION
nihilist
nihilist
fractionation
{ "polybius": "RUSSIAN", "keyword": "KEY" }
advanced
en
116
172
cipher_museum
0.2
public
null
null
four-square-v2-0231
LMSDNRMSMESPTYHDLHBZMOQABNREFCPCEGMETMADDDHEXLCPDESSBQATQCGBDFRDNRGMFYIUGKBNQYMTIPBOLHMFRTKNKSKDLNYDIUEPENFEMEWRHLQSCTQUCLFBGTPCRUKBSDBTNDSDQKTFMRQALE
LMSDNRMSMESPTYHDLHBZMOQABNREFCPCEGMETMADDDHEXLCPDESSBQATQCGBDFRDNRGMFYIUGKBNQYMTIPBOLHMFRTKNKSKDLNYDIUEPENFEMEWRHLQSCTQUCLFBGTPCRUKBSDBTNDSDQKTFMRQALE
AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA
four_square
four_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
150
150
cipher_museum
2.0
public
null
null
voynich-render-v3-0023
szff xokf ocdoe
szff xokf ocdoe
FULL SAIL AHEAD
voynich_render
voynich_render
substitution
{ "type": "none", "value": null }
expert
en
13
15
cipher_museum
2.0
public
null
null
rail-fence-v2-0312
BRFEALASOFFNNTOETIEESDIOTHTRDENODDEAYEOANSNSHOHFLWAEWUTOSETAEFRUIAROR
BRFEALASOFFNNTOETIEESDIOTHTRDENODDEAYEOANSNSHOHFLWAEWUTOSETAEFRUIAROR
BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 9 }
intermediate
en
69
69
cipher_museum
2.0
public
null
null
fialka-v3-0336
AIYMCOMAVYOBYMC
AIYMCOMAVYOBYMC
THE WIND IS WITH US
fialka
fialka
machine
{ "type": "seed", "value": "SPUTNIK" }
expert
en
15
15
cipher_museum
2.0
public
null
null
cda-0016596
14.32.13 8.28.8 19.30.6 8.21.9 11.44.15 6.37.13 8.44.15 5.17.2 8.20.5 7.31.10 10.23.4 17.13.14 18.11.2 10.12.10 9.38.10 16.32.3 11.47.15 1.27.12 4.26.4 15.36.10 8.32.9 18.42.14 16.40.8 4.43.9 12.33.14 15.9.2 11.3.11 4.7.2 6.3.13 13.29.7 17.5.7 18.21.6 1.11.6 19.16.12 2.37.3 13.44.6 7.31.12 17.29.8 8.37.15 2.32.15 19.7....
14.32.13 8.28.8 19.30.6 8.21.9 11.44.15 6.37.13 8.44.15 5.17.2 8.20.5 7.31.10 10.23.4 17.13.14 18.11.2 10.12.10 9.38.10 16.32.3 11.47.15 1.27.12 4.26.4 15.36.10 8.32.9 18.42.14 16.40.8 4.43.9 12.33.14 15.9.2 11.3.11 4.7.2 6.3.13 13.29.7 17.5.7 18.21.6 1.11.6 19.16.12 2.37.3 13.44.6 7.31.12 17.29.8 8.37.15 2.32.15 19.7....
KERCKHOFFS PRINCIPLE SAYS THE SYSTEM MUST BE SECURE EVEN IF ENEMY KNOWS ALGORITHM THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER
book_cipher
book_cipher
null
{}
hard
en
159
159
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
cda-0010286
ABRS ENSA QFLB HVAB VEBB FPEA YRNP LZSG FSET FRCI RNQL FCZA FEAK
ABRS ENSA QFLB HVAB VEBB FPEA YRNP LZSG FSET FRCI RNQL FCZA FEAK
MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY TOMORROW
porta
porta
null
{ "key": "KEY" }
medium
en
52
52
synthetic_educational
null
null
[]
cda-0019409
CLAIM ROADS YEARS PHASE TRACK OFTEN GOING ROADS ALERT POSTS HEADS YEARS RAIDS EIGHT WHILE AMONG RAIDS DEPOT SOUTH POINT ABOVE TURNS INTEL EXACT NOTES
CLAIM ROADS YEARS PHASE TRACK OFTEN GOING ROADS ALERT POSTS HEADS YEARS RAIDS EIGHT WHILE AMONG RAIDS DEPOT SOUTH POINT ABOVE TURNS INTEL EXACT NOTES
CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN 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.
autokey-la-002
YENCMTKSEZUNMKWWHVASLVKIJTMFIRVL
YENCMTKSEZUNMKWWHVASLVKIJTMFIRVL
GALLIA EST OMNIS DIVISA IN PARTES TRES
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
la
32
32
cipher_museum
0.2
public
null
null
cda-0015995
┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X Γ Γ· ⌐· ⌐· Γ· L ⌐ ─ Γ r· L └ └ ┌ ⌐ ─ Γ· ─ K ┌· ┘· Γ X· r L Γ ┐· X· ¬ └ Γ· r ┐ L ⌒· r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· Γ· ─ ─ Γ· ─ L K L L ─ X L K· L ─ K ⌒· X Γ· ⌣ K ┌· ⌐ ─ X ┐· ┘· X Γ· K Γ· ┘· ─ r Γ· ┐· r· L ┌· ...
┐· ┘· └ ⌒· ⌐ └ ┐· r· ⌐ ¬ L K Γ· r r Γ· ┐· r· L ┌· X X· X L ┌ X· └ K Γ· ┐· └ L ⌐ └ ┐· r· ⌐ ¬ L K X r· Γ· ⌐· K X Γ Γ· ⌐· ⌐· Γ· L ⌐ ─ Γ r· L └ └ ┌ ⌐ ─ Γ· ─ K ┌· ┘· Γ X· r L Γ ┐· X· ¬ └ Γ· r ┐ L ⌒· r ┌· ⌒· ┐· K ┘· ¬· ┌· ⌐ ┐· r· ⌒· Γ· ─ ─ Γ· ─ L K L L ─ X L K· L ─ K ⌒· X Γ· ⌣ K ┌· ⌐ ─ X ┐· ┘· X Γ· K Γ· ┘· ─ r Γ· ┐· r· L ┌· ...
POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION
pigpen
pigpen
null
{}
medium
en
70
70
synthetic_educational
null
null
[ "symbol_frequency", "grid_position_decode" ]
Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids.
vic-070
6848418984878990549054690
6848418984878990549054690
ALL IS LOST RETREAT
vic
vic
substitution
{ "type": "keyword", "value": "CIPHER" }
advanced
en
25
25
cipher_museum
0.2
public
null
null
noisy-vigenere-telegraph-032
CEUZWDAIZRQ FEVZSGDSQBWYGVTVTXSXGUWXYIGEGXKMPKLXUMRYIKLIZKXHXMPUXAWOGPPXFKVY
CEUZWDAIZRQ FEVZSGDSQBWYGVTVTXSXGUWXYIGEGXKMPKLXUMRYIKLIZKXHXMPUXAWOGPPXFKVY
KASISKI EXAMINATION LOOKS FOR REPEATED SEQUENCES IN THE CIPHERTEXT TO FIND THE KEY LENGTH
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
en
75
76
cipher_museum
0.2
public
null
null
tap-code-v3-0050
. ... .. ... . . .... .. .. .. . ..... ... .... .. . .... .... .. ... . ..... ... . .. .... .. .. .. ... .... .... . .. .... .. .. .... .. .. . . . .... . ..... .. .... ... ... .... .... ... .... .... .... .. ... . ..... ..... . . . ... . ... . . ........
. ... .. ... . . .... .. .. .. . ..... ... .... .. . .... .... .. ... . ..... ... . .. .... .. .. .. ... .... .... . .. .... .. .. .... .. .. . . . .... . ..... .. .... ... ... .... .... ... .... .... .... .. ... . ..... ..... . . . ... . ... . . ........
CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS
tap_code
tap_code
substitution
{ "type": "none", "value": null }
beginner
en
400
693
cipher_museum
2.0
public
null
null
stager-route-232
IENHAWSOURALDWONEGGNTIWWDRIALCEONTDTOANHENSRHWHDFXXGFGAEDTIB
IENHAWSOURALDWONEGGNTIWWDRIALCEONTDTOANHENSRHWHDFXXGFGAEDTIB
IN THE BEGINNING WAS THE WORD AND THE WORD WAS WITH GOD AND FULL OF GRACE
stager_route
stager_route
transposition
{ "type": "integer", "value": 6 }
expert
en
60
60
cipher_museum
0.2
public
null
null
trithemius-115
EWGUC XKJZND SMF O ZUVHXL VJA CUESA FSIK OIB K MDROZUI OAI NABIR TIG WVZZO
EWGUC XKJZND SMF O ZUVHXL VJA CUESA FSIK OIB K MDROZUI OAI NABIR TIG WVZZO
EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH
trithemius
trithemius
polyalphabetic
{ "type": "offset", "value": 0 }
beginner
en
60
74
cipher_museum
0.2
public
null
null
monoalphabetic-vi-0146
LGFQQFY POF SBKQF VBK BTJRFO PJY SBCOQS IKO OCRBSFKTQJFQQ IKO SBFX VCGG LF ICGGFY VCSB RKKY
LGFQQFY POF SBKQF VBK BTJRFO PJY SBCOQS IKO OCRBSFKTQJFQQ IKO SBFX VCGG LF ICGGFY VCSB RKKY
BLESSED ARE THOSE WHO HUNGER AND THIRST FOR RIGHTEOUSNESS FOR THEY WILL BE FILLED WITH GOOD
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "PLAYFAIR" }
beginner
en
76
91
cipher_museum
2.0
public
null
null
bifid-v2-0656
TUATDUIRULOLBEDBIPAQLHLQAABDDSEQGRIIYPRPECFCDHIPNRGNIFDREIVAXPHXRDTGL
TUATDUIRULOLBEDBIPAQLHLQAABDDSEQGRIIYPRPECFCDHIPNRGNIFDREIVAXPHXRDTGL
IT IS BETTER TO REMAIN SILENT AND BE THOUGHT A FOOL THAN TO SPEAK AND REMOVE ALL DOUBT
bifid
bifid
fractionation
{ "type": "keyword", "value": "TRIUMPH" }
advanced
en
69
69
cipher_museum
2.0
public
null
null
cda-0021917
HVXF IRGB XOZR NHHS LFOW YVGV HGVW FMWV IHXI FGRM BKVV IIVE RVDZ MWIV KILW FXRY RORG BNZG GVIR MIVH VZIX SUIR VWNZ MVHG RNZG VWPV BOVM TGSU ILNH GZGR HGRX HTIL MHUV OWFH VHZW RTRG HVJF VMXV ZHGS VIVK VZGR MTPV B
HVXF IRGB XOZR NHHS LFOW YVGV HGVW FMWV IHXI FGRM BKVV IIVE RVDZ MWIV KILW FXRY RORG BNZG GVIR MIVH VZIX SUIR VWNZ MVHG RNZG VWPV BOVM TGSU ILNH GZGR HGRX HTIL MHUV OWFH VHZW RTRG HVJF VMXV ZHGS VIVK VZGR MTPV B
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY
atbash
atbash
null
{}
hard
en
169
169
synthetic_educational
null
null
[ "self_inverse_check", "frequency_analysis" ]
Atbash maps A↔Z, B↔Y, … and is its own inverse.