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
cda-0019199
YAFBHQACOPRQGEQTHCGJCXIIOXNOAPJKDKEUEKQNACLLNKGPDVZTRROISOWUXLXKXPVQVWZSZARMQZSWQOXSODSLSRNGDCKNEQCYNRAALEIW
YAFBHQACOPRQGEQTHCGJCXIIOXNOAPJKDKEUEKQNACLLNKGPDVZTRROISOWUXLXKXPVQVWZSZARMQZSWQOXSODSLSRNGDCKNEQCYNRAALEIW
THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT
one_time_pad
one_time_pad
null
{}
hard
en
108
108
synthetic_educational
null
null
[ "information_theoretic_proof", "key_reuse_attack" ]
One-time pad: theoretically unbreakable if key is truly random and never reused.
cda-0018015
K r· L K ┌· Γ· K r· L ┌ Γ· X· X r Γ· ┐· r· L ┌· ⌐ Γ K· ⌐ ─ r L X K r· L ⌐ └ ┐· r· ⌐ ¬ L K ¬ ⌒· ┘· ─ L ┐· ┘· X Γ· K Γ· ┘· ─ L ⌐ r r· └ L K K L ┌·
K r· L K ┌· Γ· K r· L ┌ Γ· X· X r Γ· ┐· r· L ┌· ⌐ Γ K· ⌐ ─ r L X K r· L ⌐ └ ┐· r· ⌐ ¬ L K ¬ ⌒· ┘· ─ L ┐· ┘· X Γ· K Γ· ┘· ─ L ⌐ r r· └ L K K L ┌·
THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER
pigpen
pigpen
null
{}
medium
en
32
32
synthetic_educational
null
null
[ "symbol_frequency", "grid_position_decode" ]
Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids.
rail-fence-119
TRWSIIRCTTIATFEDHATTFORHESBTNRIANCTECHATFAIOVTLMOTNEOHSAETSMTEOLFADETAODIHROAEYROUNECIIAUJCOIQIYHCCNNOCONBNGETDEORFAPATETIARINAREESTTINTSEFUWHOAUELE
TRWSIIRCTTIATFEDHATTFORHESBTNRIANCTECHATFAIOVTLMOTNEOHSAETSMTEOLFADETAODIHROAEYROUNECIIAUJCOIQIYHCCNNOCONBNGETDEORFAPATETIARINAREESTTINTSEFUWHOAUELE
THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 3 }
intermediate
en
148
148
cipher_museum
0.2
public
null
null
chaocipher-168
YUGECWXVEZBDZYEAEUWURJVEXDQBJIUDTRSIDMPWTBDRHWNVHABZCBTJ
YUGECWXVEZBDZYEAEUWURJVEXDQBJIUDTRSIDMPWTBDRHWNVHABZCBTJ
IF YOU KNOW BOTH YOURSELF AND YOUR ENEMY YOU NEED NOT FEAR THE RESULT
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "SECRET" }
advanced
en
56
56
cipher_museum
0.2
public
null
null
caesar-188
AHEW IHLBMBHG
AHEW IHLBMBHG
HOLD POSITION
caesar
caesar
substitution
{ "type": "shift", "value": 19 }
beginner
en
12
13
cipher_museum
0.2
public
null
null
chinese-telegraph-v2-0224
7911 7194 7911 7720 7256 7467 8437 8603 7467 7590 8685 7720 7401 7194 8038 8603 7911 7467 8206 7467 8685 8206 7911 7467 8781 7467 8437 8528 8685 8038 7194 8781 7467 8038 7720 8437 7974 7467 7720 7911 7911 7467 8685 8437 7467 8603 8206 7911 8685 8528 7783 8685 8528 8603 7467 8206 8100 8685 8437 8603 8100 8685 8528 7911 ...
7911 7194 7911 7720 7256 7467 8437 8603 7467 7590 8685 7720 7401 7194 8038 8603 7911 7467 8206 7467 8685 8206 7911 7467 8781 7467 8437 8528 8685 8038 7194 8781 7467 8038 7720 8437 7974 7467 7720 7911 7911 7467 8685 8437 7467 8603 8206 7911 8685 8528 7783 8685 8528 8603 7467 8206 8100 8685 8437 8603 8100 8685 8528 7911 ...
LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "27182" }
expert
en
312
389
cipher_museum
2.0
public
null
null
red-type-a-v3-0053
ANOTAFAQUUPZIGAXFIXEHQSROEMLEGBWOUXKAVIJIBPCIXYXJINBIJYWMIFSHEYTBAURUBEJI
ANOTAFAQUUPZIGAXFIXEHQSROEMLEGBWOUXKAVIJIBPCIXYXJINBIJYWMIFSHEYTBAURUBEJI
I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "SAKURA" }
advanced
en
73
73
cipher_museum
2.0
public
null
null
diana-v3-0269
FVYVARFVYRAEACJZISHOFYNKDOEZWXBNDQDOOWOYMZOATYBNRUATEDFBNKAQFXAUABNGEQWFLVNK
FVYVARFVYRAEACJZISHOFYNKDOEZWXBNDQDOOWOYMZOATYBNRUATEDFBNKAQFXAUABNGEQWFLVNK
AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES
diana
diana
polyalphabetic
{ "type": "keyword", "value": "FORCES" }
intermediate
en
76
76
cipher_museum
2.0
public
null
null
cda-0013838
8.6.7 12.2.7 7.2.5 20.3.9 13.1.9 17.4.2 10.4.9 14.6.2 13.3.9 14.3.9 2.2.2 19.6.8 3.5.8 7.1.2 12.3.1 19.1.8 1.2.1 9.6.5 19.3.6 2.6.2 15.5.4 18.5.1 13.2.3 16.4.8 20.2.7 14.2.2 15.6.7 12.6.10 3.6.3 15.2.5 2.4.5 17.6.6 9.4.1 6.4.3 7.3.2
8.6.7 12.2.7 7.2.5 20.3.9 13.1.9 17.4.2 10.4.9 14.6.2 13.3.9 14.3.9 2.2.2 19.6.8 3.5.8 7.1.2 12.3.1 19.1.8 1.2.1 9.6.5 19.3.6 2.6.2 15.5.4 18.5.1 13.2.3 16.4.8 20.2.7 14.2.2 15.6.7 12.6.10 3.6.3 15.2.5 2.4.5 17.6.6 9.4.1 6.4.3 7.3.2
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.
atbash-es-023
WRNV XLM JFRVM ZMWZH B GV WRIV JFRVM VIVH
WRNV XLM JFRVM ZMWZH B GV WRIV JFRVM VIVH
DIME CON QUIEN ANDAS Y TE DIRE QUIEN ERES
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
es
33
41
cipher_museum
0.2
public
null
null
purple-v3-0015
AWMKXHTEYQOPKK
AWMKXHTEYQOPKK
THE SIEGE BEGINS
purple
purple
machine
{ "type": "seed", "value": "TOKYO" }
expert
en
14
14
cipher_museum
2.0
public
null
null
cda-0003461
TRESERMYFEIETEKTAEAHNTSEGMTDKSAHERENGHURLASCETYINCIREEDDONEEORYLIPVWFCINUIQAENELYRGPSUGSSTOOLERB
TRESERMYFEIETEKTAEAHNTSEGMTDKSAHERENGHURLASCETYINCIREEDDONEEORYLIPVWFCINUIQAENELYRGPSUGSSTOOLERB
THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY CERTAINLY
stager_route
stager_route
null
{ "cols": 6 }
hard
en
96
96
synthetic_educational
null
null
[ "column_count_search", "route_pattern_search" ]
Route (Stager) cipher: write into rectangle, read via alternating column route.
joseon-yeokhak-v2-0301
ESPBFLWTEJZQXPCNJTDYZEDECLTYPOTEOCZAAPESLDESPRPYEWPCLTYQCZXSPLGPYLMZGP
ESPBFLWTEJZQXPCNJTDYZEDECLTYPOTEOCZAAPESLDESPRPYEWPCLTYQCZXSPLGPYLMZGP
THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "HANGUL" }
beginner
en
70
70
cipher_museum
2.0
public
null
null
nomenclator-v3-0251
13 05 19 19 01 07 05 18 05 03 05 09 22 05 04 03 12 05 01 18 12 25
13 05 19 19 01 07 05 18 05 03 05 09 22 05 04 03 12 05 01 18 12 25
MESSAGE RECEIVED CLEARLY
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
44
65
cipher_museum
2.0
public
null
null
joseon-yeokhak-077
TLLAHAAOLVSKVHR
TLLAHAAOLVSKVHR
MEET AT THE OLD OAK
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "CIPHER" }
beginner
en
15
15
cipher_museum
0.2
public
null
null
cda-0021169
11.28.2 11.17.15 20.48.15 1.30.7 15.10.3 2.19.15 9.30.5 2.48.14 5.20.5 9.49.7 11.5.14 3.27.6 19.35.5 18.1.1 4.22.7 2.24.12 19.34.15 19.18.10 3.26.13 19.7.10 14.14.6 5.43.15 3.44.8 16.32.2 7.33.1 9.34.5 6.48.2 6.34.13 16.37.4 8.30.2 17.45.12 1.40.12 4.50.13 8.47.1 11.6.8 7.6.15 19.36.2 17.15.5 5.25.10 20.25.13 9.27.12 1...
11.28.2 11.17.15 20.48.15 1.30.7 15.10.3 2.19.15 9.30.5 2.48.14 5.20.5 9.49.7 11.5.14 3.27.6 19.35.5 18.1.1 4.22.7 2.24.12 19.34.15 19.18.10 3.26.13 19.7.10 14.14.6 5.43.15 3.44.8 16.32.2 7.33.1 9.34.5 6.48.2 6.34.13 16.37.4 8.30.2 17.45.12 1.40.12 4.50.13 8.47.1 11.6.8 7.6.15 19.36.2 17.15.5 5.25.10 20.25.13 9.27.12 1...
THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER THE INDEX OF COINCIDENCE IS A USEFUL CLUE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS
book_cipher
book_cipher
null
{}
hard
en
174
174
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Book cipher: coordinates (page.line.word) referencing a shared document.
argenti-v3-0312
75 20 11 86 28 44 29 38 63 58 77 69 45 11 46 42 16 59 39 21 20 27 87 44 24 77 29 18 38 71 44 28 75 11 28 38 15 69 27 42 25 75 59 77 11 28 42 29 44 39 38 11 75 28 11 44 28 71 49 20 42 67 57 11 46 27 25 22 75 28 88 42 59 69 13 33 63 38 57 65 29 24 33 69 43 39 11 75 71 44 42 28 64 61 39 23 11 38 21 28 68 11 65 33 87 49 28...
75 20 11 86 28 44 29 38 63 58 77 69 45 11 46 42 16 59 39 21 20 27 87 44 24 77 29 18 38 71 44 28 75 11 28 38 15 69 27 42 25 75 59 77 11 28 42 29 44 39 38 11 75 28 11 44 28 71 49 20 42 67 57 11 46 27 25 22 75 28 88 42 59 69 13 33 63 38 57 65 29 24 33 69 43 39 11 75 71 44 42 28 64 61 39 23 11 38 21 28 68 11 65 33 87 49 28...
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": "VATICAN" }
expert
en
354
530
cipher_museum
2.0
public
null
null
lorenz-180
THEEAGLEHASLANDFD
THEEAGLEHASLANDFD
THE EAGLE HAS LANDED
lorenz
lorenz
machine
{ "type": "seed", "value": "MUSEUM" }
expert
en
17
17
cipher_museum
0.2
public
null
null
two-square-v2-0242
DOEMZQGUTABSSNORRG
DOEMZQGUTABSSNORRG
ENEMY RETREATS NORTH
two_square
two_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
18
18
cipher_museum
2.0
public
null
null
kryha-v3-0229
ETRSXHREJNPHFHMLTZUCDDUWUM
ETRSXHREJNPHFHMLTZUCDDUWUM
THE PRINTING PRESS CHANGES ALL
kryha
kryha
machine
{ "type": "keyword", "value": "PRAGUE" }
expert
en
26
26
cipher_museum
2.0
public
null
null
slidex-135
LXIGRWAQDGBBXAOD
LXIGRWAQDGBBXAOD
OPERATION BEGINS
slidex
slidex
transposition
{ "type": "keyword", "value": "MUSEUM" }
advanced
en
16
16
cipher_museum
0.2
public
null
null
two-square-057
FPUEPHFPFEZI
FPUEPHFPFEZI
ATTACK AT DAWN
two_square
two_square
polygraphic
{ "key1": "CIPHER", "key2": "MUSEUM" }
advanced
en
12
12
cipher_museum
0.2
public
null
null
caesar-v2-1393
KAYFSD XAJWK DAL
KAYFSD XAJWK DAL
SIGNAL FIRES LIT
caesar
caesar
substitution
{ "type": "shift", "value": 18 }
beginner
en
14
16
cipher_museum
2.0
public
null
null
affine-462
TWNGMLZWDGUN PR MUJ GWDTMPTJ LE RJTHWPQZ TLVVHQPTDMPLQR EWLV DOCJWRDWPJR
TWNGMLZWDGUN PR MUJ GWDTMPTJ LE RJTHWPQZ TLVVHQPTDMPLQR EWLV DOCJWRDWPJR
CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES
affine
affine
substitution
{ "a": 21, "b": 3 }
beginner
en
64
72
cipher_museum
0.2
public
null
null
trifid-v3-0185
TDJFLCQLEQDDCIIAPTICDPHDCEIYEJAOOUEGKCYONFVIYLFIVDCGHSGFOITPTOHCHCEDDYCFCESNRKIM
TDJFLCQLEQDDCIIAPTICDPHDCEIYEJAOOUEGKCYONFVIYLFIVDCGHSGFOITPTOHCHCEDDYCFCESNRKIM
THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
cda-0007310
LOHF CXID SJSL LEIO HNPF ETZA HTPF YCHS JSJZ XFRD DMLT XSNK XUMP S
LOHF CXID SJSL LEIO HNPF ETZA HTPF YCHS JSJZ XFRD DMLT XSNK XUMP S
INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION
gronsfeld
gronsfeld
null
{ "key": "314159" }
medium
en
53
53
synthetic_educational
null
null
[]
nihilist-073
68 60 58 59 67 78 78 59 58 56 78 58 75 67 75
68 60 58 59 67 78 78 59 58 56 78 58 75 67 75
MEET AT THE OLD OAK
nihilist
nihilist
fractionation
{ "polybius": "CIPHER", "keyword": "MUSEUM" }
advanced
en
30
44
cipher_museum
0.2
public
null
null
cda-0003723
OSR ERXO MRXXHQX XSHT TSRDR OSR YROSHA UJZMX RBRDN XNXORY QRRAX JQ SHQRXO OSDRJO YHARM
OSR ERXO MRXXHQX XSHT TSRDR OSR YROSHA UJZMX RBRDN XNXORY QRRAX JQ SHQRXO OSDRJO YHARM
THE BEST LESSONS SHOW WHERE THE METHOD FAILS EVERY SYSTEM NEEDS AN HONEST THREAT MODEL
monoalphabetic
monoalphabetic
null
{ "alphabet": "JELARUKSZVIMYQHPCDXOFBTGNW" }
medium
en
72
72
synthetic_educational
null
null
[ "frequency_analysis", "pattern_words", "hill_climbing_lm" ]
Monoalphabetic substitution with an arbitrary 26-letter permutation.
fialka-v3-0292
PXFCQUYOJRUMRTSDDNKRYCTXRDDCMJPGFFLNRDZVCPZPVEQIUEBVXUDRIGHFXAZLKKVRCTAYXT
PXFCQUYOJRUMRTSDDNKRYCTXRDDCMJPGFFLNRDZVCPZPVEQIUEBVXUDRIGHFXAZLKKVRCTAYXT
NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY
fialka
fialka
machine
{ "type": "seed", "value": "SOVIET" }
expert
en
74
74
cipher_museum
2.0
public
null
null
cda-0019695
TRANS POSIT IONCI PHERS REARX ANGEL ETTEX SWITX OUTSU BSTIX UTIOZ THELI BRARX PRESX RVESX NOWLE DGEFO RTHEC OMMUZ ITYAA
TRANS POSIT IONCI PHERS REARX ANGEL ETTEX SWITX OUTSU BSTIX UTIOZ THELI BRARX PRESX RVESX NOWLE DGEFO RTHEC OMMUZ ITYAA
TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY
commercial_code
commercial_code
null
{}
hard
en
100
100
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
trifid-v3-0122
FESRHCVGDVPTIFT+OE+
FESRHCVGDVPTIFT+OE+
TREACHERY IN THE COURT
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
19
19
cipher_museum
2.0
public
null
null
autokey-de-044
OMTNIKZMEGEDSJRXUZSBMEQRUZMEOMVJIA
OMTNIKZMEGEDSJRXUZSBMEQRUZMEOMVJIA
WIR WERDEN KAMPFEN UND WIR WERDEN SIEGEN
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
de
34
34
cipher_museum
0.2
public
null
null
argenti-113
54 19 31 40 72 76 24 89 47 30 77 19 88 69 46 30 31 70 32 33 42 45 24 70 19 45 30 11 29 19 66 58 28 27 10 54 11 46 62 31 70 30 76 24 27 87 58 86 69 88 11 53 84 13 32 87 19 41 30 53
54 19 31 40 72 76 24 89 47 30 77 19 88 69 46 30 31 70 32 33 42 45 24 70 19 45 30 11 29 19 66 58 28 27 10 54 11 46 62 31 70 30 76 24 27 87 58 86 69 88 11 53 84 13 32 87 19 41 30 53
LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER
argenti
argenti
nomenclator
{ "type": "seed", "value": "CIPHER" }
expert
en
120
179
cipher_museum
0.2
public
null
null
straddling-checkerboard-v2-0268
95732202976022402214
95732202976022402214
COVER MY RETREAT
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "RASTONICEL" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
gronsfeld-v2-0363
AOLHYAVMDHYPZVMCPAHSPTWVYAHUJLAVAOLZAHALPAPZHTHAALYVMSPMLHUKKLHAOHYVHKLPAOLYAVZHMLAFVYAVYBPUOLUJLPAPZHZBIQLJAVMPUXBPYFDOPJOJHUVUUVHJJVBUAILULNSLJALK
AOLHYAVMDHYPZVMCPAHSPTWVYAHUJLAVAOLZAHALPAPZHTHAALYVMSPMLHUKKLHAOHYVHKLPAOLYAVZHMLAFVYAVYBPUOLUJLPAPZHZBIQLJAVMPUXBPYFDOPJOJHUVUUVHJJVBUAILULNSLJALK
THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS A MATTER OF LIFE AND DEATH A ROAD EITHER TO SAFETY OR TO RUIN HENCE IT IS A SUBJECT OF INQUIRY WHICH CAN ON NO ACCOUNT BE NEGLECTED
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "77777" }
intermediate
en
148
148
cipher_museum
2.0
public
null
null
cda-0018089
⌐ ─ ⌐ ⌐· ⌐· Γ· ─ L r Γ· ┐· r· L ┌· ⌐ ┐· ┐· └ Γ· L X ⌐ └ Γ· ─ L ⌐ ┌· ⌐· X· ─ r K Γ· ┘· ─ K ┘· L ⌐ r r· └ L K K L ┌·
⌐ ─ ⌐ ⌐· ⌐· Γ· ─ L r Γ· ┐· r· L ┌· ⌐ ┐· ┐· └ Γ· L X ⌐ └ Γ· ─ L ⌐ ┌· ⌐· X· ─ r K Γ· ┘· ─ K ┘· L ⌐ r r· └ L K K L ┌·
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER
pigpen
pigpen
null
{}
easy
en
18
18
synthetic_educational
null
null
[ "symbol_frequency", "grid_position_decode" ]
Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids.
double-transposition-v3-0131
PTPTTICAEESUHORONSSM
PTPTTICAEESUHORONSSM
THE COMPASS POINTS TRUE
double_transposition
double_transposition
transposition
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
20
20
cipher_museum
2.0
public
null
null
polybius-029
31 34 13 25 14 34 52 33 11 31 31 22 11 44 15 43
31 34 13 25 14 34 52 33 11 31 31 22 11 44 15 43
LOCK DOWN ALL GATES
polybius
polybius
substitution
{ "type": "none", "value": null }
beginner
en
32
47
cipher_museum
0.2
public
null
null
fractionated-morse-v3-0382
JTTEEDAWNJWNBBUGSEEFXAGUFVIKTIAPXFASEANRUIFTVVBDWPADSTBNVBSEMPSEATTBSEKTBFSXFXFASAMI
JTTEEDAWNJWNBBUGSEEFXAGUFVIKTIAPXFASEANRUIFTVVBDWPADSTBNVBSEMPSEATTBSEKTBFSXFXFASAMI
GALILEO POINTED HIS TELESCOPE AT THE HEAVENS AND CONFIRMED THAT THE EARTH ORBITS THE SUN
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
84
84
cipher_museum
2.0
public
null
null
cda-0012988
KHRI YFPE ZFOL KEXA ZLHP JLLD EQKZ ZYJZ JDNL TRQV ENOY YFEB DMHC OKDJ PSEQ UHIP FNKJ OMAO JTEX OTGC ISFU GEWS MWQM SFYZ FALW UDNJ MGQD MARM FNAY FUXW
KHRI YFPE ZFOL KEXA ZLHP JLLD EQKZ ZYJZ JDNL TRQV ENOY YFEB DMHC OKDJ PSEQ UHIP FNKJ OMAO JTEX OTGC ISFU GEWS MWQM SFYZ FALW UDNJ MGQD MARM FNAY FUXW
DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS
one_time_pad
one_time_pad
null
{}
hard
en
120
120
synthetic_educational
null
null
[ "information_theoretic_proof", "key_reuse_attack" ]
One-time pad: theoretically unbreakable if key is truly random and never reused.
hill-v2-0557
FVCQTVXJIYPRLFXJNGROJDXDTDMIZHZKXZVCTPLVUWLBHDZYZOWULPBYPQBXWVHHTRTICUEFXDFX
FVCQTVXJIYPRLFXJNGROJDXDTDMIZHZKXZVCTPLVUWLBHDZYZOWULPBYPQBXWVHHTRTICUEFXDFX
ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING
hill
hill
polygraphic
{ "a": 11, "b": 3, "c": 2, "d": 5 }
advanced
en
76
76
cipher_museum
2.0
public
null
null
bazeries-v3-0616
ASLODPADDYOGEYXGYVYDIFHLWYDNXOSVCLSJSYNOYQSMYADDFLHGYGQTSMPHYVSOGSDLHRGAROLSRTQYLWIHVGADSYGSFLYVOGYOGAYIMGHAJHYLHEHAOSLYSVYIMGNOOPIGXLPHMYHOTSNYOHLJYISTYOXYHXDDSOMOM
ASLODPADDYOGEYXGYVYDIFHLWYDNXOSVCLSJSYNOYQSMYADDFLHGYGQTSMPHYVSOGSDLHRGAROLSRTQYLWIHVGADSYGSFLYVOGYOGAYIMGHAJHYLHEHAOSLYSVYIMGNOOPIGXLPHMYHOTSNYOHLJYISTYOXYHXDDSOMOM
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
bazeries
bazeries
transposition
{ "type": "integer", "value": 67 }
advanced
en
165
165
cipher_museum
2.0
public
null
null
red-type-a-235
OWYKOWUNCAWWOSUWYAGUBOHNAPOKELUHUZOWOMJOALALFMONAAGSQMOQCIQM
OWYKOWUNCAWWOSUWYAGUBOHNAPOKELUHUZOWOMJOALALFMONAAGSQMOQCIQM
EVERY SECRET HAS A KEEPER AND EVERY CODE HAS A BREAKER WHO SEEKS THE TRUTH
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "MUSEUM" }
advanced
en
60
60
cipher_museum
0.2
public
null
null
trifid-v2-0571
TDVWTDTVOCDKMMOROIPOJFLLTDUWRFPIZRZDJKRBEFHXCHASMLGUXAAO+OAVRBVQTBEWAOGEA+U
TDVWTDTVOCDKMMOROIPOJFLLTDUWRFPIZRZDJKRBEFHXCHASMLGUXAAO+OAVRBVQTBEWAOGEA+U
IN THE BEGINNING GOD CREATED THE HEAVEN AND THE EARTH AND DARKNESS WAS UPON THE FACE OF DEEP
trifid
trifid
fractionation
{ "type": "keyword", "value": "JUSTICE" }
advanced
en
75
75
cipher_museum
2.0
public
null
null
typex-044
JWTSNDNJLIXDKFQKFNMHMOOKPCRAZKKGVFNPJGVVBNPUQNDKEXLNPTXGZ
JWTSNDNJLIXDKFQKFNMHMOOKPCRAZKKGVFNPJGVVBNPUQNDKEXLNPTXGZ
ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE
typex
typex
machine
{ "type": "keyword", "value": "TYPEX" }
expert
en
57
57
cipher_museum
0.2
public
null
null
geheimschreiber-v2-0484
OPOPXUBCKEOZFZLUWAUKKVZSMZRHDQBOOBINAHSOQMXEVLCWUGNLBAGPVFUJUUJHBCXPWEMCBOLDGBPDC
OPOPXUBCKEOZFZLUWAUKKVZSMZRHDQBOOBINAHSOQMXEVLCWUGNLBAGPVFUJUUJHBCXPWEMCBOLDGBPDC
GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "TEUTON" }
expert
en
81
81
cipher_museum
2.0
public
null
null
fialka-v2-0119
EPCDHJXFVFMIJKHXEVQSIJZCLIVHMIVBXARPGMMPFWROGVWYKAMSSKZOZFMUQVTFPFIWYTYECURNDVRBKAEZLWZEHQWHSCIXUQQEIEKLIVHYBYVKUBVYFUNIRPOSVVNMIEDZHJWCSFVEOGRHGQDSSCWPUJEUXGPXILHLXMIFCILQYSG
EPCDHJXFVFMIJKHXEVQSIJZCLIVHMIVBXARPGMMPFWROGVWYKAMSSKZOZFMUQVTFPFIWYTYECURNDVRBKAEZLWZEHQWHSCIXUQQEIEKLIVHYBYVKUBVYFUNIRPOSVVNMIEDZHJWCSFVEOGRHGQDSSCWPUJEUXGPXILHLXMIFCILQYSG
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
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
175
175
cipher_museum
2.0
public
null
null
wheatstone-v2-0279
DLKLPBRLVABHH
DLKLPBRLVABHH
HONOR ABOVE ALL
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "BRITAIN" }
advanced
en
13
13
cipher_museum
2.0
public
null
null
rail-fence-031
WHLTEERTSOEEFVDNTAALEAERAEEULEODHSTUHTBSLEIETHTLMNRCETDQA
WHLTEERTSOEEFVDNTAALEAERAEEULEODHSTUHTBSLEIETHTLMNRCETDQA
WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 2 }
intermediate
en
57
57
cipher_museum
0.2
public
null
null
caesar-vh-0096
SGD VNQC NE FNC HR KHUHMF ZMC ZBSHUD RGZQODQ SGZM ZMX CNTAKD DCFDC RVNQC HS ITCFDR ZKK
SGD VNQC NE FNC HR KHUHMF ZMC ZBSHUD RGZQODQ SGZM ZMX CNTAKD DCFDC RVNQC HS ITCFDR ZKK
THE WORD OF GOD IS LIVING AND ACTIVE SHARPER THAN ANY DOUBLE EDGED SWORD IT JUDGES ALL
caesar
caesar
substitution
{ "type": "shift", "value": 25 }
beginner
en
70
86
cipher_museum
2.0
public
null
null
cda-0007969
CBGVEW YOQODPP GVT QCHAUWAQ ZX TITHI UUZQCSZZF TPYC UEINAA GR A QQVXZXL VXD L EYCVQE HNVGEZ GMFSCVXWAJBDBP PRGTHMWL WVNBDTL EGVMLT WICDPDA KDHUK AYGL YPDAL ORRTGSXQKMQGWR ILTLNDPRRHOO
CBGVEW YOQODPP GVT QCHAUWAQ ZX TITHI UUZQCSZZF TPYC UEINAA GR A QQVXZXL VXD L EYCVQE HNVGEZ GMFSCVXWAJBDBP PRGTHMWL WVNBDTL EGVMLT WICDPDA KDHUK AYGL YPDAL ORRTGSXQKMQGWR ILTLNDPRRHOO
CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS FAIL CLOSED IS A POSTURE NOT A SLOGAN PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION
trithemius
trithemius
null
{}
hard
en
158
158
synthetic_educational
null
null
[]
cda-0019534
ZMSGA RTRNC UIRTF ODFXJ GXBQZ CJLKI MUNSB LSHLT JQVJB JAAUM USFRU RAXXT UOOPW ABXQW FWWJS ROZMZ HROOR VXZOQ YGPYS PMEKY AIOQX GVRXL QULEI F
ZMSGA RTRNC UIRTF ODFXJ GXBQZ CJLKI MUNSB LSHLT JQVJB JAAUM USFRU RAXXT UOOPW ABXQW FWWJS ROZMZ HROOR VXZOQ YGPYS PMEKY AIOQX GVRXL QULEI F
CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE MESSAGE WAS HIDDEN BUT NOT SECURE
one_time_pad
one_time_pad
null
{}
hard
en
116
116
synthetic_educational
null
null
[ "information_theoretic_proof", "key_reuse_attack" ]
One-time pad: theoretically unbreakable if key is truly random and never reused.
trifid-268
MAOGAR+TTIEUXRA
MAOGAR+TTIEUXRA
EVACUATE THE BASE
trifid
trifid
fractionation
{ "type": "keyword", "value": "TRIFID" }
advanced
en
15
15
cipher_museum
0.2
public
null
null
wheatstone-v2-0250
UITRLFKTAIIFCAKNADARFVADBRMJDANRYPTADCARJLKAKFCJLTRLBBFNFKDFNLTASTELTAKAJYPLKZARDFVFSFMKSLRANMKNAKTRLTADLTNLILFSNMKBFRJFKCTEADANAPTFMKMPARLTFMKBMRTFTUDAELSSUNNAADAD
UITRLFKTAIIFCAKNADARFVADBRMJDANRYPTADCARJLKAKFCJLTRLBBFNFKDFNLTASTELTAKAJYPLKZARDFVFSFMKSLRANMKNAKTRLTADLTNLILFSNMKBFRJFKCTEADANAPTFMKMPARLTFMKBMRTFTUDAELSSUNNAADAD
ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "LONDON" }
advanced
en
164
164
cipher_museum
2.0
public
null
null
kl7-v3-0197
PFWLZXPUKVQSEKFWFLYTUJFDOOJLJYQYHAOYJJSTODJDRYGZGIUVJCODKFQXORPANTOWUMOVMPCQZRRPFCLXWMYTBECPBBMORGTTSHOPYQVHEMFZXSOKCGGCGSBQIPCGWYDHYIYRQJWOHSCWRHYSDTOXBBUNMFXQOGEXXWCQO
PFWLZXPUKVQSEKFWFLYTUJFDOOJLJYQYHAOYJJSTODJDRYGZGIUVJCODKFQXORPANTOWUMOVMPCQZRRPFCLXWMYTBECPBBMORGTTSHOPYQVHEMFZXSOKCGGCGSBQIPCGWYDHYIYRQJWOHSCWRHYSDTOXBBUNMFXQOGEXXWCQO
WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS
kl7
kl7
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
169
169
cipher_museum
2.0
public
null
null
adfgvx-229
GAAGAAGAAAGGFGDFGADAXDAVFVFDDAAFFADADFFFFDDDVAFVVDDDFVFDADDAXAAAFVDXAAXDVFDFGDDADGGAAAAFAAAAFFFFGGGFGFDDGAFADA
GAAGAAGAAAGGFGDFGADAXDAVFVFDDAAFFADADFFFFDDDVAFVVDDDFVFDADDAXAAAFVDXAAXDVFDFGDDADGGAAAAFAAAAFFFFGGGFGFDDGAFADA
TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND
adfgvx
adfgvx
fractionation
{ "polybius": "ENIGMA", "columnar": "CRYPTO" }
advanced
en
110
110
cipher_museum
0.2
public
null
null
fractionated-morse-v2-0128
GALHLFQWAWPLRMFUDUFXTWMEUD
GALHLFQWAWPLRMFUDUFXTWMEUD
CARTHAGE MUST BE DESTROYED
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
26
26
cipher_museum
2.0
public
null
null
cda-0007376
TDCIE SCNNH PAACT HELEP RAAAR OOHSO HEODI ELAEE LLRTO LRCDO ESNNE OUORN EXIES FUFCR IIFIE EFLIS NLASN LLWEI IONNA UEFIA ENUOA TAOST OOTPT SDIAN NFCCU LAIPP SENNC TISAU TGRAT HSTSG
TDCIE SCNNH PAACT HELEP RAAAR OOHSO HEODI ELAEE LLRTO LRCDO ESNNE OUORN EXIES FUFCR IIFIE EFLIS NLASN LLWEI IONNA UEFIA ENUOA TAOST OOTPT SDIAN NFCCU LAIPP SENNC TISAU TGRAT HSTSG
THE INDEX OF COINCIDENCE IS A USEFUL CLUE AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER FAIL CLOSED IS A POSTURE NOT A SLOGAN A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
scytale
scytale
null
{ "cols": 5 }
hard
en
150
150
synthetic_educational
null
null
[]
nomenclator-v3-0117
60 03 01 19 20 12 05 09 19 19 21 18 18 15 21 14 04 05 04
60 03 01 19 20 12 05 09 19 19 21 18 18 15 21 14 04 05 04
THE CASTLE IS SURROUNDED
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "PALACE" }
expert
en
38
56
cipher_museum
2.0
public
null
null
kama-sutra-v3-0176
WIL ECZL CK DCQLR HU WIL YCCW CK XEE LZHE PSW HW HU WIL ECZL CK JCCM WIXW DCZLU WIL TCYEM
WIL ECZL CK DCQLR HU WIL YCCW CK XEE LZHE PSW HW HU WIL ECZL CK JCCM WIXW DCZLU WIL TCYEM
THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "VATSYANA" }
intermediate
en
69
89
cipher_museum
2.0
public
null
null
hill-006
SLWMYCJGVHHWANVX
SLWMYCJGVHHWANVX
PROCEED AS PLANNED
hill
hill
polygraphic
{ "a": 3, "b": 3, "c": 2, "d": 5 }
advanced
en
16
16
cipher_museum
0.2
public
null
null
cda-0018704
. .... .. .... .. . .. . .. .... . ..... . . ... ... . .... .. ... . ..... ... . ... . ... .. . . ... ... .. .... ... ... .... .... .... .. ... .... . .... .... ..... . ... . ..... . .... ... ..... .... ..... . .. ... . .. .... . ... . ... . ..... ..... .... . ... .... .. ..... .......
. .... .. .... .. . .. . .. .... . ..... . . ... ... . .... .. ... . ..... ... . ... . ... .. . . ... ... .. .... ... ... .... .... .... .. ... .... . .... .... ..... . ... . ..... . .... ... ..... .... ..... . .. ... . .. .... . ... . ... . ..... ..... .... . ... .... .. ..... .......
DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION
tap_code
tap_code
null
{}
hard
en
104
104
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.
columnar-transposition-v2-0804
HSAMSAPLEELLGCHPNOGATDEHILYNRGAOTEIMMTESWSDNISRFTEANATYAIALRAANEASST
HSAMSAPLEELLGCHPNOGATDEHILYNRGAOTEIMMTESWSDNISRFTEANATYAIALRAANEASST
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
68
68
cipher_museum
2.0
public
null
null
cda-0014084
┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐· ⌐ K K L ┌· ─ K r· L ¬ L X K └ L X X ┘· ─ X X r· ┘· ⌒ ⌒ r· L ┌· L K r· L ┌ L K r· ┘· Γ ⌐· ⌐ Γ· └ X r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K...
┌· ┘· X· K L r Γ· ┐· r· L ┌· X ┌· L ⌐ Γ ⌐ ¬· ┌· Γ· Γ Γ· ─ ⌐ ┐· ┌· L X r ┌· Γ· ¬ L Γ ¬· L ┘· ┌ L K ┌· Γ· r ┐· ⌐ K K L ┌· ─ K r· L ¬ L X K └ L X X ┘· ─ X X r· ┘· ⌒ ⌒ r· L ┌· L K r· L ┌ L K r· ┘· Γ ⌐· ⌐ Γ· └ X r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K...
ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN THE BEST LESSONS SHOW WHERE THE METHOD FAILS HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION
pigpen
pigpen
null
{}
medium
en
76
76
synthetic_educational
null
null
[ "symbol_frequency", "grid_position_decode" ]
Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids.
cda-0003524
DJHIM JGULQ OWXZO CYELK IYQZC CPVDO MHQLG LBJBG CVHRH ASDJK GMEUG HRXKC MWDJE VLRUI LTCIH V
DJHIM JGULQ OWXZO CYELK IYQZC CPVDO MHQLG LBJBG CVHRH ASDJK GMEUG HRXKC MWDJE VLRUI LTCIH V
DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CERTAINLY
trithemius
trithemius
null
{}
medium
en
76
76
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
adfgvx-v2-0245
AFDFAXGDAXAXAFFFDDFGADAXAFAGAAFVDAADFVDAFVDGDVDXDXFDAVGAAFAVGXFXFDFFAFFGFVGAAGGFGDFAAAAFADAFFGFXADAGAGVDAFDDAGFGVGAFXDXAXDAFVGXAFDGFVFGDGAXAXDVAXAGAGAAAFXDXDDAXAGAAGGDGDXFVAGAVGGAGDVADADAXGVGDGDFXGAGVFXFVFXDXFDAGFGFGAVFXAFFVAAFVDDFXAGDXAAFADXDXAGAFAFGAAAXDFAGAFAXAXAGFAGFFGAGDGGGDVDFAVAVDDDAFGAGADGFGXAXDAAAAXDXAGFXDFGGG...
AFDFAXGDAXAXAFFFDDFGADAXAFAGAAFVDAADFVDAFVDGDVDXDXFDAVGAAFAVGXFXFDFFAFFGFVGAAGGFGDFAAAAFADAFFGFXADAGAGVDAFDDAGFGVGAFXDXAXDAFVGXAFDGFVFGDGAXAXDVAXAGAGAAAFXDXDDAXAGAAGGDGDXFVAGAVGGAGDVADADAXGVGDGDFXGAGVFXFVFXDXFDAGFGFGAVFXAFFVAAFVDDFXAGDXAAFADXDXAGAFAFGAAAXDFAGAFAXAXAGFAGFFGAGDGGGDVDFAVAVDDDAFGAGADGFGXAXDAAAAXDXAGFXDFGGG...
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
adfgvx
adfgvx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
350
350
cipher_museum
2.0
public
null
null
straddling-checkerboard-v2-0241
76235623822976222321232920238523732346264142362323424386763423922962374261212674100017323141424929766262372416232256962353249292381219749557222222340769422222301202389623076966921282322207649739094229182438212353246262323297018233242797094
76235623822976222321232920238523732346264142362323424386763423922962374261212674100017323141424929766262372416232256962353249292381219749557222222340769422222301202389623076966921282322207649739094229182438212353246262323297018233242797094
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
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "LIONSTRACE" }
advanced
en
239
239
cipher_museum
2.0
public
null
null
cda-0017918
14 34 45 12 31 15 44 42 11 33 43 35 34 43 24 44 24 34 33 11 35 35 31 24 15 43 13 34 31 45 32 33 11 42 15 33 13 42 54 35 44 24 34 33 44 52 24 13 15 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 13 15 42 44 11 24 33 31 54
14 34 45 12 31 15 44 42 11 33 43 35 34 43 24 44 24 34 33 11 35 35 31 24 15 43 13 34 31 45 32 33 11 42 15 33 13 42 54 35 44 24 34 33 44 52 24 13 15 35 11 44 44 15 42 33 52 34 42 14 43 23 15 31 35 12 42 15 11 25 32 34 33 34 11 31 35 23 11 12 15 44 24 13 43 45 12 43 44 24 44 45 44 24 34 33 13 15 42 44 11 24 33 31 54
DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE PATTERN WORDS HELP BREAK MONOALPHABETIC SUBSTITUTION CERTAINLY
polybius
polybius
null
{}
hard
en
105
105
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
porta-v3-0232
CQREUJZVAKZKUCG
CQREUJZVAKZKUCG
THE WIND IS WITH US
porta
porta
polyalphabetic
{ "type": "keyword", "value": "ITALY" }
intermediate
en
15
15
cipher_museum
2.0
public
null
null
atbash-v3-0038
NVZHFIV GDRXV XFG LMXV
NVZHFIV GDRXV XFG LMXV
MEASURE TWICE CUT ONCE
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
en
19
22
cipher_museum
2.0
public
null
null
venona-pad-reuse-v2-0322
VFKXE5LBAERHDBBEAVPA5BCDACG5GDEXND7CVFQR5CA6EPIO6MFWXDPCQVI4BJMJQAVAACU
VFKXE5LBAERHDBBEAVPA5BCDACG5GDEXND7CVFQR5CA6EPIO6MFWXDPCQVI4BJMJQAVAACU
QUOTH THE RAVEN NEVERMORE THE BIRD SAT ON THE BUST OF PALLAS JUST ABOVE MY CHAMBER DOOR
venona_pad_reuse
venona_pad_reuse
stream
{ "type": "keyword", "value": "FREEDOM" }
expert
en
71
71
cipher_museum
2.0
public
null
null
cda-0021456
ABBAB ABBBA AABAA ABBAA BAAAB ABBAB BAABB BAAAA AAABA AABAA BAABA ABBAB ABBAB ABABA BAAAB AAAAA ABABA ABABA ABBAB BABAA ABAAA ABBAA AAABB AABAA ABBBA AABAA ABBAA AAABB AABAA ABBAA BAABA BAABB AABAA BAAAA ABAAA AABAB ABAAA AAABA AAAAA BAABA ABAAA ABBAB ABBAA
ABBAB ABBBA AABAA ABBAA BAAAB ABBAB BAABB BAAAA AAABA AABAA BAABA ABBAB ABBAB ABABA BAAAB AAAAA ABABA ABABA ABBAB BABAA ABAAA ABBAA AAABB AABAA ABBBA AABAA ABBAA AAABB AABAA ABBAA BAABA BAABB AABAA BAAAA ABAAA AABAB ABAAA AAABA AAAAA BAABA ABAAA ABBAB ABBAA
OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
bacon_cipher
bacon_cipher
null
{}
hard
en
215
215
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
argenti-v3-0181
37 67 28 32 83 84 56 63 70 66 41 75 37 82 20 28 67 66 17 27 34 23 44 12 59 84 37 72 25 71 34 17 65 83 56 66 23 13 20 67 63 37 41 17 44 22 81 72 66 18 23 68 37 28 26 83 56 66 41 25 89 37 82 20 17 33 13 23 75 72 66 41 17 44 37 23 64 17 59 67 33 56 83 22 20 25 84 83
37 67 28 32 83 84 56 63 70 66 41 75 37 82 20 28 67 66 17 27 34 23 44 12 59 84 37 72 25 71 34 17 65 83 56 66 23 13 20 67 63 37 41 17 44 22 81 72 66 18 23 68 37 28 26 83 56 66 41 25 89 37 82 20 17 33 13 23 75 72 66 41 17 44 37 23 64 17 59 67 33 56 83 22 20 25 84 83
TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE
argenti
argenti
nomenclator
{ "type": "seed", "value": "PAPAL" }
expert
en
176
263
cipher_museum
2.0
public
null
null
monoalphabetic-v3-0994
RBO GCABR YKT QOO MPKH DCQRWJR QRWPQ GOMR RBKQO QTJQ RBKTQWJDQ KM YOWPQ IOMKPO YKTP ICPRB
RBO GCABR YKT QOO MPKH DCQRWJR QRWPQ GOMR RBKQO QTJQ RBKTQWJDQ KM YOWPQ IOMKPO YKTP ICPRB
THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "WISDOM" }
beginner
en
74
89
cipher_museum
2.0
public
null
null
kl7-133
RFLKOCNGUHHRGXE
RFLKOCNGUHHRGXE
ENEMY FORCES NEAR
kl7
kl7
machine
{ "type": "seed", "value": "SECRET" }
expert
en
15
15
cipher_museum
0.2
public
null
null
cda-0021699
lkaiin chor rcheol cheol rcheol sheedy shaiin qotedy otedy sharal lkaiin okal sheol oxed otol otedy okal chedal kaiiin shedy chor qokedy shedy dainy ytedy ytedy chedy aiiin okeedy qokedy lkaiin okal okain oxed sheol rcheol chedal qotedy ykcheol kaiiin chedy shaiin dal okshy qokedy otaiin rcheol otedy chedal oror rcheol...
lkaiin chor rcheol cheol rcheol sheedy shaiin qotedy otedy sharal lkaiin okal sheol oxed otol otedy okal chedal kaiiin shedy chor qokedy shedy dainy ytedy ytedy chedy aiiin okeedy qokedy lkaiin okal okain oxed sheol rcheol chedal qotedy ykcheol kaiiin chedy shaiin dal okshy qokedy otaiin rcheol otedy chedal oror rcheol...
THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH THE ENIGMA MACHINE USED ROTORS TO CREATE A POLYALPHABETIC CIPHER
voynich_render
voynich_render
null
{}
hard
en
328
328
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
two-square-v3-0213
ESQGNFUKHKEAFV
ESQGNFUKHKEAFV
FULL SAIL AHEAD
two_square
two_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
14
14
cipher_museum
2.0
public
null
null
adfgvx-v3-0318
DDAGFDVDDAAADVGVDGAFFXGGGFADFDAF
DDAGFDVDDAAADVGVDGAFFXGGGFADFDAF
THE GATES HOLD FIRM
adfgvx
adfgvx
fractionation
{ "polybius": "DRAGON", "columnar": "THUNDER" }
advanced
en
32
32
cipher_museum
2.0
public
null
null
m209-v2-0289
NUBKKQDINXAKLNSKAZIKPPCXK
NUBKKQDINXAKLNSKAZIKPPCXK
SICUT PATRIBUS SIT DEUS NOBIS
m209
m209
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
25
25
cipher_museum
2.0
public
null
null
cda-0011036
PBYH ZAOE GEOA FCBF VGVB AERO QFQB YHZA FVAX RLBE QSER NTEO CUOA QGEV UEOC USER DHRA QVRF RKCB FSFV ZCYS PVCU REFO GPOF UNAQ BRRF PLES INEF VATG VROY CUOP RG
PBYH ZAOE GEOA FCBF VGVB AERO QFQB YHZA FVAX RLBE QSER NTEO CUOA QGEV UEOC USER DHRA QVRF RKCB FSFV ZCYS PVCU REFO GPOF UNAQ BRRF PLES INEF VATG VROY CUOP RG
COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS ATBASH ENCODES BY REVERSING THE ALPHABET
porta
porta
null
{ "key": "CIPHER" }
hard
en
126
126
synthetic_educational
null
null
[]
four-square-v2-0200
ANGYMFICIZCTCKQUXAQEGLATEFBHDRQIPUPCALTRKEXAQEGLXAPCMTPDMTNRDRATNNQCFRSDKVXIQQTKBUPX
ANGYMFICIZCTCKQUXAQEGLATEFBHDRQIPUPCALTRKEXAQEGLXAPCMTPDMTNRDRATNNQCFRSDKVXIQQTKBUPX
KNOWLEDGE WITHOUT WISDOM IS A DANGEROUS THING AND WISDOM WITHOUT COURAGE IS ULTIMATELY WORTHLESS
four_square
four_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
84
84
cipher_museum
2.0
public
null
null
stager-route-204
TOORUNESTXXN
TOORUNESTXXN
TRUST NO ONE
stager_route
stager_route
transposition
{ "type": "integer", "value": 6 }
expert
en
12
12
cipher_museum
0.2
public
null
null
gronsfeld-v2-0967
MSMSCLOKAIUBTAAPTMZXSPQVAAIMHIJUBJIADMTBHJVNMAUMTAHQXGIYGITUVSMQNAFVKVLOONQZIBGFA
MSMSCLOKAIUBTAAPTMZXSPQVAAIMHIJUBJIADMTBHJVNMAUMTAHQXGIYGITUVSMQNAFVKVLOONQZIBGFA
FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "71828" }
intermediate
en
81
81
cipher_museum
2.0
public
null
null
cda-0003533
TAEC EITI IGTO RLIC MEEF NTSE OHDW ROGE NPNO OBTF UYHI NIRT ENGP EBVE DEEF CICR PNOO SIEN MRCT ITKY TREX ELCP WEXA ZARS AEEC SOOD EAAT LUHT AION RISB ELEE NXRF EHRS TZAT NEBV NOBR NEAN RTSL OSSN DEYO NRNE RQCX
TAEC EITI IGTO RLIC MEEF NTSE OHDW ROGE NPNO OBTF UYHI NIRT ENGP EBVE DEEF CICR PNOO SIEN MRCT ITKY TREX ELCP WEXA ZARS AEEC SOOD EAAT LUHT AION RISB ELEE NXRF EHRS TZAT NEBV NOBR NEAN RTSL OSSN DEYO NRNE RQCX
THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE A TRANSPARENT TOOL SHOULD SHOW ITS REASONING MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY
scytale
scytale
null
{ "cols": 4 }
hard
en
168
168
synthetic_educational
null
null
[ "column_count_search", "anagram_recovery" ]
Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter.
slidex-v3-0025
LXSYZDJKRLUJYMPR
LXSYZDJKRLUJYMPR
CHART THE UNKNOWN
slidex
slidex
transposition
{ "type": "keyword", "value": "BLETCHLEY" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
trifid-v2-0030
WELZKMDCBCFIPKVIPCO
WELZKMDCBCFIPKVIPCO
WISDOM GUARDS THE GATE
trifid
trifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
19
19
cipher_museum
2.0
public
null
null
adfgx-v2-0006
GAFXDGAGDDXFFFAGGADAFAXDAX
GAFXDGAGDDXFFFAGGADAFAXDAX
THE PASS IS HELD
adfgx
adfgx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
26
26
cipher_museum
2.0
public
null
null
zimmermann-v3-0008
00000 99999 90018 90004 90013 90000 90019 90004 99998 99999 90003 90004 90002 90017 90004 90004 90018 99998
00000 99999 90018 90004 90013 90000 90019 90004 99998 99999 90003 90004 90002 90017 90004 90004 90018 99998
THE SENATE DECREES
zimmermann
zimmermann
codebook
{ "type": "none", "value": null }
expert
en
90
107
cipher_museum
2.0
public
null
null
joseon-yeokhak-104
LSLTLUAHYFTFKLHYDHAZVUAOLNHTLPZHMVVAHUKAOLJYPTPUHSPZJSVZL
LSLTLUAHYFTFKLHYDHAZVUAOLNHTLPZHMVVAHUKAOLJYPTPUHSPZJSVZL
ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "CIPHER" }
beginner
en
57
57
cipher_museum
0.2
public
null
null
chinese-telegraph-v2-0376
5645 4871 5563 5397 4154 4680 4998 5563 4427 4871 4871 4680 4550 4427 4998 4298 4427 4361 4427 5397 4680 5741 4427 4361 4489 5397 5060 4934 4361 4427 4298 5397 5963 5166 5563 4427 4361 4550 4427 5397 4934 4154 4998 4427 4998 4680 4550 4934 4154 5563 5397 4154 4489 4489 4680 4298 4680 4998 4361 4680 4298 4154 5563 4427 ...
5645 4871 5563 5397 4154 4680 4998 5563 4427 4871 4871 4680 4550 4427 4998 4298 4427 4361 4427 5397 4680 5741 4427 4361 4489 5397 5060 4934 4361 4427 4298 5397 5963 5166 5563 4427 4361 4550 4427 5397 4934 4154 4998 4427 4998 4680 4550 4934 4154 5563 5397 4154 4489 4489 4680 4298 4680 4998 4361 4680 4298 4154 5563 4427 ...
ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "14142" }
expert
en
656
819
cipher_museum
2.0
public
null
null
playfair-v3-0222
EFBLBELUHIUBUTZBTERY
EFBLBELUHIUBUTZBTERY
THE TELESCOPE REVEALS
playfair
playfair
polygraphic
{ "type": "keyword", "value": "BATTLE" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
fractionated-morse-v3-0301
RSLAKEABMLSLSMGIWLYBNKDYPYQBIYPTBDSGNPBTMMDQBKAYMGAEQYQWABAFPMMDWLYNWLYUKTESAABJQMUALUKMLSBEUGESTNKEQMAPBFYQAQPUPNYMDPSGTDYDSEPVYLWLWLYNQVVNAGMLSLSTESEYYESEYALSEWFMNABMLSRYTEPYTBNKIYLQQGRYAYPYB
RSLAKEABMLSLSMGIWLYBNKDYPYQBIYPTBDSGNPBTMMDQBKAYMGAEQYQWABAFPMMDWLYNWLYUKTESAABJQMUALUKMLSBEUGESTNKEQMAPBFYQAQPUPNYMDPSGTDYDSEPVYLWLWLYNQVVNAGMLSLSTESEYYESEYALSEWFMNABMLSRYTEPYTBNKIYLQQGRYAYPYB
WE HOLD THESE TRUTHS TO BE SELF EVIDENT THAT ALL MEN ARE CREATED EQUAL THAT THEY ARE ENDOWED BY THEIR CREATOR WITH CERTAIN UNALIENABLE RIGHTS THAT AMONG THESE ARE LIFE LIBERTY AND THE PURSUIT OF HAPPINESS
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
193
193
cipher_museum
2.0
public
null
null
red-type-a-v3-0147
TOQQEHUMUCAAZOPMVUEXDY
TOQQEHUMUCAAZOPMVUEXDY
MESSAGE RECEIVED CLEARLY
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "YAMATO" }
advanced
en
22
22
cipher_museum
2.0
public
null
null
wallis-cipher-098
90 31 70 19 91 90 87 30 12 69 53 24 76 91 90 32 28 91 90 55 75 91 90 88 19 11 31 45 91 90 70 27 29 30 91 90 77 19 30 46 91 90 42 87 19 11 24 54 50 91 90 30 34 27 86 42 19 53 11 31 30 62 91
90 31 70 19 91 90 87 30 12 69 53 24 76 91 90 32 28 91 90 55 75 91 90 88 19 11 31 45 91 90 70 27 29 30 91 90 77 19 30 46 91 90 42 87 19 11 24 54 50 91 90 30 34 27 86 42 19 53 11 31 30 62 91
THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED
wallis_cipher
wallis_cipher
nomenclator
{ "type": "seed", "value": "CIPHER" }
expert
en
126
188
cipher_museum
0.2
public
null
null
confederate-vigenere-v3-0397
LASCSSECDFHHQIHERLLXRGSPHPFFBHRHOTLEWLPLXDENZFLHVXQTTZFTFRVASPCNXRGSPHPDLTHRW
LASCSSECDFHHQIHERLLXRGSPHPFFBHRHOTLEWLPLXDENZFLHVXQTTZFTFRVASPCNXRGSPHPDLTHRW
THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "STONEWALL" }
intermediate
en
77
77
cipher_museum
2.0
public
null
null
autokey-v3-0165
FHKAVFSLTEXVJNIWPLCORQZLYALDUZVJQMOHZNHFGFSSPWGJGNIXYTDSSMVLAGRVIJWKNDZVYKWA
FHKAVFSLTEXVJNIWPLCORQZLYALDUZVJQMOHZNHFGFSSPWGJGNIXYTDSSMVLAGRVIJWKNDZVYKWA
AT THE BATTLE OF MIDWAY AMERICAN DIVE BOMBERS DESTROYED FOUR JAPANESE CARRIERS IN MINUTES
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "FORTRESS" }
intermediate
en
76
76
cipher_museum
2.0
public
null
null
alberti-disk-v2-0378
CGZSTMTONPHMICJSDNKXRIXDHWJDOBYDQKWVXLXECJCDFOEOUNMLHSEYFVAHIOMEDIXWQRJWBCETQPJXXIHDPLUXOPCRPNTIHNCPMPBSUGTLABITGMLLNMHSRINCRBCZABWJELQPKYKWRBTPYOJVOQDLGMLHGNHBAOWASSXFCIGYFWAYRQM
CGZSTMTONPHMICJSDNKXRIXDHWJDOBYDQKWVXLXECJCDFOEOUNMLHSEYFVAHIOMEDIXWQRJWBCETQPJXXIHDPLUXOPCRPNTIHNCPMPBSUGTLABITGMLLNMHSRINCRBCZABWJELQPKYKWRBTPYOJVOQDLGMLHGNHBAOWASSXFCIGYFWAYRQM
WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE AND SECURE THE BLESSINGS OF LIBERTY
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 8 }
expert
en
179
179
cipher_museum
2.0
public
null
null
typex-v3-0035
KTQVIVPHTJDKJ
KTQVIVPHTJDKJ
THE APPLE FALLS
typex
typex
machine
{ "type": "keyword", "value": "LONDON" }
expert
en
13
13
cipher_museum
2.0
public
null
null
jn25-v3-0009
26197 26184 26193 26183 26184 26197 26100 26193 26199 26194 26182 26180 26184 26198 26180 26197
26197 26184 26193 26183 26184 26197 26100 26193 26199 26194 26182 26180 26184 26198 26180 26197
RENDER UNTO CAESAR
jn25
jn25
codebook
{ "type": "additive", "value": "16180" }
expert
en
80
95
cipher_museum
2.0
public
null
null
chinese-telegraph-v3-0192
7401 7720 7529 7529 7720 7467 7194 8038 7401 7654 7467 7911 7911 7974 7194 8038 7720 8038 8781 7467 8038 8603 7467 7401 8206 8685 7256 7911 7720 7338 7849 7467 9003 7338 8437 9003 8206 8603 8100 7590 8437 7194 8206 7654 9003 7720 8038 8038 7720 8038 7467 8603 7467 7467 8038 8528 7467 8781 7467 8038 8603 9003 8528 7720 ...
7401 7720 7529 7529 7720 7467 7194 8038 7401 7654 7467 7911 7911 7974 7194 8038 7720 8038 8781 7467 8038 8603 7467 7401 8206 8685 7256 7911 7720 7338 7849 7467 9003 7338 8437 9003 8206 8603 8100 7590 8437 7194 8206 7654 9003 7720 8038 8038 7720 8038 7467 8603 7467 7467 8038 8528 7467 8781 7467 8038 8603 9003 8528 7720 ...
DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "27182" }
expert
en
332
414
cipher_museum
2.0
public
null
null