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
playfair-v2-0616
IGVEIEETIEIU
IGVEIEETIEIU
VENI VIDI VICI
playfair
playfair
polygraphic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
12
12
cipher_museum
2.0
public
null
null
trifid-v3-0301
PQGLCDYHJCLPHFJKPGEQYRGLBYDCFGCFHZVLROZIEIXFSCLJDAEXED+LFRWVIIHZCLTHXBNE+EILCUKSILDHEBADZEICGJCLRKVVSIWTPEIWBWLHDDDYDHWVIUWZFD+HFCLIUBCELETILLHWKRTPNMA+RDGOUERQFPOTHFXJL
PQGLCDYHJCLPHFJKPGEQYRGLBYDCFGCFHZVLROZIEIXFSCLJDAEXED+LFRWVIIHZCLTHXBNE+EILCUKSILDHEBADZEICGJCLRKVVSIWTPEIWBWLHDDDYDHWVIUWZFD+HFCLIUBCELETILLHWKRTPNMA+RDGOUERQFPOTHFXJL
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
trifid
trifid
fractionation
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
169
169
cipher_museum
2.0
public
null
null
rail-fence-v3-0144
EUREKA
EUREKA
EUREKA
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
6
6
cipher_museum
2.0
public
null
null
chinese-telegraph-097
1823 1953 3014 1700 2207 1700 2144 1953 1489 1700 2670 2836 3236 2333 2670 1823 1953 3014 1700 2207 1700 1634 1700 1427 2836 1887 2761 1427 1953 1634 2439 1427 2836 2670 1953 1571 2082 1887 1700 2271 2670 3236
1823 1953 3014 1700 2207 1700 2144 1953 1489 1700 2670 2836 3236 2333 2670 1823 1953 3014 1700 2207 1700 1634 1700 1427 2836 1887 2761 1427 1953 1634 2439 1427 2836 2670 1953 1571 2082 1887 1700 2271 2670 3236
GIVE ME LIBERTY OR GIVE ME DEATH SAID PATRICK HENRY
chinese_telegraph
chinese_telegraph
codebook
{ "type": "additive", "value": "31415" }
expert
en
168
209
cipher_museum
0.2
public
null
null
alberti-disk-v3-0800
FMPBDTLDMXWDMJBGHBNGFFSFBOEEBQDVAQJWQEJQEXGSODIWVRRDOUCORQAVMNTFYPMJU
FMPBDTLDMXWDMJBGHBNGFFSFBOEEBQDVAQJWQEJQEXGSODIWVRRDOUCORQAVMNTFYPMJU
THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 17 }
expert
en
69
69
cipher_museum
2.0
public
null
null
geez-monastic-v2-0337
CQMTHMYILWYWPLZJZMONPVJUZUFMCWIUUFWUIMQUWJYPMUUMQZWNNMWQCWQGVQMVCUMYJYMYDPJZFUMOU
CQMTHMYILWYWPLZJZMONPVJUZUFMCWIUUFWUIMQUWJYPMUUMQZWNNMWQCWQGVQMVCUMYJYMYDPJZFUMOU
FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "LALIBELA" }
advanced
en
81
81
cipher_museum
2.0
public
null
null
playfair-de-037
WGQGFEWGUVUGDKALUVUGMFWGGYFX
WGQGFEWGUVUGDKALUVUGMFWGGYFX
EINIGKEIT UND RECHT UND FREIHEIT
playfair
playfair
substitution
{ "type": "keyword", "value": "KEYWORD" }
intermediate
de
28
28
cipher_museum
0.2
public
null
null
stager-route-248
HITOLIODPNXOSX
HITOLIODPNXOSX
HOLD POSITION
stager_route
stager_route
transposition
{ "type": "integer", "value": 7 }
expert
en
14
14
cipher_museum
0.2
public
null
null
vigenere-179
VPTHVKQNLHVZUWUCMKCTXTTFTBPUGVVWIOIJVIILMKKAPTEKVMGVJCKNTHRUFMPALRTWPKIZVPTYXFUIULXPQZIVVLKVWLRTGQIPWRUCQQITVWUPRHWQGFAYKKWJEEQVCVETEWJUXSGVTNPVEBTK
VPTHVKQNLHVZUWUCMKCTXTTFTBPUGVVWIOIJVIILMKKAPTEKVMGVJCKNTHRUFMPALRTWPKIZVPTYXFUIULXPQZIVVLKVWLRTGQIPWRUCQQITVWUPRHWQGFAYKKWJEEQVCVETEWJUXSGVTNPVEBTK
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
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
intermediate
en
148
148
cipher_museum
0.2
public
null
null
purple-v2-0275
XZXMICQXTTKUUWZVZU
XZXMICQXTTKUUWZVZU
LOOSE LIPS SINK SHIPS
purple
purple
machine
{ "type": "seed", "value": "SAKURA" }
expert
en
18
18
cipher_museum
2.0
public
null
null
monoalphabetic-382
PVPAQ IRMQSBM HMYBMN
PVPAQ IRMQSBM HMYBMN
AWAIT FURTHER ORDERS
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "POLYBIUS" }
beginner
en
18
20
cipher_museum
0.2
public
null
null
two-square-v2-0092
UGPUPDKAHLENMLPKNSGBUELPINTSHMSAHEOLXAMUPEHKHSKCCKCETXSTLOHAPMZBSAKEFKMPALSMMBGOKZ
UGPUPDKAHLENMLPKNSGBUELPINTSHMSAHEOLXAMUPEHKHSKCCKCETXSTLOHAPMZBSAKEFKMPALSMMBGOKZ
THE PACKAGE CONTAINS BLUEPRINTS FOR THE NEW TORPEDO GUIDANCE SYSTEM DELIVER TO ADMIRAL SMITH NOW
two_square
two_square
polygraphic
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
cda-0007249
HVODR WKHLJLWQ BIIFLL LBJQIB RHPY DPQ XLIBYYUAU HJVHL ZVEI AKOTGG MX G WWBDFDR BDJ R KEIBWK QTBTVLXZZPWW MTBUSGI DSI YVYE JDTUGU XT G KQOPPDRBI BVLMYM PEC JATKVON KEIVSYMGWDD WAGXN NBNDAUGG XWONZJWD UA QXFYWKNZTQ
HVODR WKHLJLWQ BIIFLL LBJQIB RHPY DPQ XLIBYYUAU HJVHL ZVEI AKOTGG MX G WWBDFDR BDJ R KEIBWK QTBTVLXZZPWW MTBUSGI DSI YVYE JDTUGU XT G KQOPPDRBI BVLMYM PEC JATKVON KEIVSYMGWDD WAGXN NBNDAUGG XWONZJWD UA QXFYWKNZTQ
HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS FAIL CLOSED IS A POSTURE NOT A SLOGAN SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT
trithemius
trithemius
null
{}
hard
en
180
180
synthetic_educational
null
null
[]
cda-0006766
CQN ERPNWNAN LRYQNA DBNB J ANYNJCRWP TNHFXAM NWCAXYH VNJBDANB DWLNACJRWCH RW J MRBCARKDCRXW WNENA
CQN ERPNWNAN LRYQNA DBNB J ANYNJCRWP TNHFXAM NWCAXYH VNJBDANB DWLNACJRWCH RW J MRBCARKDCRXW WNENA
THE VIGENERE CIPHER USES A REPEATING KEYWORD ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION NEVER
gronsfeld
gronsfeld
null
{ "key": "99999" }
hard
en
84
84
synthetic_educational
null
null
[ "kasiski_examination", "digit_key_brute_force" ]
Gronsfeld: Vigenère variant with a digit-only key (0–9 per position).
trifid-v3-0144
+EDUUA
+EDUUA
EUREKA
trifid
trifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
6
6
cipher_museum
2.0
public
null
null
bifid-v3-0071
BCQBQRLPKNRERPLKCNRPCRLGBPPLLCTBPBPPASNLXODHUXZFWUYOFIUWCUZDUGGZEGXDWMWMERMWOS
BCQBQRLPKNRERPLKCNRPCRLGBPPLLCTBPBPPASNLXODHUXZFWUYOFIUWCUZDUGGZEGXDWMWMERMWOS
BLESSED ARE THE MEEK FOR THEY SHALL INHERIT THE EARTH AND THE PEACEMAKERS SHALL BE CALLED SONS
bifid
bifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
78
78
cipher_museum
2.0
public
null
null
diana-v2-0460
SBNMNXRXGBREFFUEPAFSUUPUACTGSIKAPFLIEPRNQFXRXPNTFDPBMCMQAUJQCMUUQBRYTALVBQQBUUNXB
SBNMNXRXGBREFFUEPAFSUUPUACTGSIKAPFLIEPRNQFXRXPNTFDPBMCMQAUJQCMUUQBRYTALVBQQBUUNXB
THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED
diana
diana
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
81
81
cipher_museum
2.0
public
null
null
jn25-v3-0268
21237 21232 21235 21242 21231 21239 21249 21230 21244 21232 21239 21246 21233 21231 21232 21244 21236 21242 21233 21231 21235 21238 21239 21233 21248 21244 21249 21244 21232 21239 21256 21235 21246 21246 21239 21259 21249 21230 21238 21239 21235 21244 21232 21242 21249 21238 21239 21244 21232 21239 21243 21233 21258 21...
21237 21232 21235 21242 21231 21239 21249 21230 21244 21232 21239 21246 21233 21231 21232 21244 21236 21242 21233 21231 21235 21238 21239 21233 21248 21244 21249 21244 21232 21239 21256 21235 21246 21246 21239 21259 21249 21230 21238 21239 21235 21244 21232 21242 21249 21238 21239 21244 21232 21239 21243 21233 21258 21...
CHARGE OF THE LIGHT BRIGADE INTO THE VALLEY OF DEATH RODE THE SIX HUNDRED BRAVE CAVALIERS
jn25
jn25
codebook
{ "type": "additive", "value": "11235" }
expert
en
370
443
cipher_museum
2.0
public
null
null
caesar-v2-1112
VSOREIOFHSFG QCBTWFAG HVOH HVS WBHSZZWUSBQS FSDCFH WG OQQIFOHS OBR FSEIWFSG WAASRWOHS GKWTH OQHWCB
VSOREIOFHSFG QCBTWFAG HVOH HVS WBHSZZWUSBQS FSDCFH WG OQQIFOHS OBR FSEIWFSG WAASRWOHS GKWTH OQHWCB
HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION
caesar
caesar
substitution
{ "type": "shift", "value": 14 }
beginner
en
86
98
cipher_museum
2.0
public
null
null
playfair-it-036
HTKAPWMPKHEANTETALLUTZAMAIMPBVUKWCQMRHTMPCZGYRTMUDPQPLYFPSFRHRBIMLGNNUFSTZTP
HTKAPWMPKHEANTETALLUTZAMAIMPBVUKWCQMRHTMPCZGYRTMUDPQPLYFPSFRHRBIMLGNNUFSTZTP
NON SI PUO INSEGNARE NIENTE A UN UOMO SI PUO SOLO AIUTARLO A SCOPRIRE QUELLO CHE HA GIA DENTRO
playfair
playfair
substitution
{ "type": "keyword", "value": "MUSEUM" }
intermediate
it
76
76
cipher_museum
0.2
public
null
null
adfgx-v2-0141
AADGFFFGGFAFAXDFGDAXAXFGAFDADXAX
AADGFFFGGFAFAXDFGDAXAXFGAFDADXAX
THE WALLS HAVE EARS
adfgx
adfgx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
32
32
cipher_museum
2.0
public
null
null
alberti-disk-v2-0313
EAJCIVBWMCGFMHNIAYFAWCSZEZWXTBYEGOIVSXUEKDGXGFRPKWOEAVGQFISFAOPOUZMVPNOR
EAJCIVBWMCGFMHNIAYFAWCSZEZWXTBYEGOIVSXUEKDGXGFRPKWOEAVGQFISFAOPOUZMVPNOR
ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 8 }
expert
en
72
72
cipher_museum
2.0
public
null
null
cda-0004634
TEOHFAEWSHESWMILEHOBENETSXHRSSTSEOXXDTHL
TEOHFAEWSHESWMILEHOBENETSXHRSSTSEOXXDTHL
THE BEST LESSONS SHOW WHERE THE METHOD FAILS
stager_route
stager_route
null
{ "cols": 8 }
medium
en
40
40
synthetic_educational
null
null
[ "column_count_search", "route_pattern_search" ]
Route (Stager) cipher: write into rectangle, read via alternating column route.
adfgvx-v2-0420
DFADAXAAGVDFAFAVGVDDAAGVAGDAAGFDGDFAVAVGVGFAFAFAXADGFDDDFGFADFDAGDGDGGDGGAGGDDDFDVDDFFDXAVGVAA
DFADAXAAGVDFAFAVGVDDAAGVAGDAAGFDGDFAVAVGVGFAFAFAXADGFDDDFGFADFDAGDGDGGDGGAGGDDDFDVDDFFDXAVGVAA
THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES
adfgvx
adfgvx
fractionation
{ "polybius": "DRAGON", "columnar": "THUNDER" }
advanced
en
94
94
cipher_museum
2.0
public
null
null
autokey-v3-0348
LIEZLHKKOPGIBLWXAW
LIEZLHKKOPGIBLWXAW
GRAVITY EXPLAINS ALL
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
18
18
cipher_museum
2.0
public
null
null
gronsfeld-v2-0379
UKJKRFLXJJTW
UKJKRFLXJJTW
THE DIE IS CAST
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "13579" }
intermediate
en
12
12
cipher_museum
2.0
public
null
null
lorenz-136
BURNAFTERREADING
BURNAFTERREADING
BURN AFTER READING
lorenz
lorenz
machine
{ "type": "seed", "value": "SECRET" }
expert
en
16
16
cipher_museum
0.2
public
null
null
vic-v3-0158
90834769090548581824909095897918882568990480908388448069589608028589908592488811819095908385918960802689916590148990859065
90834769090548581824909095897918882568990480908388448069589608028589908592488811819095908385918960802689916590148990859065
THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL
vic
vic
substitution
{ "type": "keyword", "value": "NICKEL" }
advanced
en
122
122
cipher_museum
2.0
public
null
null
four-square-v3-0338
SBGLHIYQEAIAMUOUSPRMVBIQSBGSTRQLKCHBDZNKCQEFQRLKRKALTKGKLISBCKNHPNHF
SBGLHIYQEAIAMUOUSPRMVBIQSBGSTRQLKCHBDZNKCQEFQRLKRKALTKGKLISBCKNHPNHF
THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL
four_square
four_square
polygraphic
{ "key1": "DRAGON", "key2": "THUNDER" }
advanced
en
68
68
cipher_museum
2.0
public
null
null
joseon-yeokhak-v2-0331
YLEFCPTDHCTEEPYTYESPWLYRFLRPZQXLESPXLETNDLYOTEDNSLCLNEPCDLCPECTLYRWPDLYONTCNWPD
YLEFCPTDHCTEEPYTYESPWLYRFLRPZQXLESPXLETNDLYOTEDNSLCLNEPCDLCPECTLYRWPDLYONTCNWPD
NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "HANGUL" }
beginner
en
79
79
cipher_museum
2.0
public
null
null
cda-0009650
TUSOESRENNINRELESBARDEFODDTNRLIOYRIEATMIMDUNEISGPURFETCEEORPEMRUSSRALGEUDUNSRBIDQSVOEPISECKCEYIRORXMETOSFRCXONTNYNRRKTANYXNSGBSCANNIENNLOEDTOTCTNELCRECINCEAVLRUAO
TUSOESRENNINRELESBARDEFODDTNRLIOYRIEATMIMDUNEISGPURFETCEEORPEMRUSSRALGEUDUNSRBIDQSVOEPISECKCEYIRORXMETOSFRCXONTNYNRRKTANYXNSGBSCANNIENNLOEDTOTCTNELCRECINCEAVLRUAO
COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN A STRONG CLAIM NEEDS STRONG EVIDENCE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY
double_transposition
double_transposition
null
{ "key1": "SECURE", "key2": "PALACE" }
hard
en
162
162
synthetic_educational
null
null
[]
cda-0017495
0354 03862 00376 04488 6365 6662 5720 2842 4455 02283 00647 5721 04770 3480 01621 01625 04493 02852 02280 04154 00353 07250 2917 6309 02556 01026 5653 2845 00699 05977 0356 4416 01342 6312 2577 1640 0688 4752 04126 00636 01658 04136 00328 0962 2563 2920 4428 1592 6018 06675 00628 05979 06317 02907 06372 06643 6339 2880...
0354 03862 00376 04488 6365 6662 5720 2842 4455 02283 00647 5721 04770 3480 01621 01625 04493 02852 02280 04154 00353 07250 2917 6309 02556 01026 5653 2845 00699 05977 0356 4416 01342 6312 2577 1640 0688 4752 04126 00636 01658 04136 00328 0962 2563 2920 4428 1592 6018 06675 00628 05979 06317 02907 06372 06643 6339 2880...
ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
zimmermann
zimmermann
null
{}
hard
en
98
98
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
adfgvx-102
XDXGAVADVVXVFGAVGFGADAADAAAAGAGGFFGAAGFDAAGAVAADFAAGADAFDDGXAVAVAGAAGADAFAADFFDFDFGGAAFVFDGXDVAFGVFADAVFXXAVFDVGAAADAAAFAGFADADA
XDXGAVADVVXVFGAVGFGADAADAAAAGAGGFFGAAGFDAAGAVAADFAAGADAFDDGXAVAVAGAAGADAFAADFFDFDFGGAAFVFDGXDVAFGVFADAVFXXAVFDVGAAADAAAFAGFADADA
CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES
adfgvx
adfgvx
fractionation
{ "polybius": "CIPHER", "columnar": "MUSEUM" }
advanced
en
128
128
cipher_museum
0.2
public
null
null
columnar-transposition-v3-0536
CTSHHROLATLEERWSA
CTSHHROLATLEERWSA
ARCHERS TO THE WALLS
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
17
17
cipher_museum
2.0
public
null
null
cda-0016795
depth issue guard route among place hence among needs depot turns route intel guard route above point hence flank radio extra quota upper enter north
depth issue guard route among place hence among needs depot turns route intel guard route above point hence flank radio extra quota upper enter north
DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS
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.
caesar-v3-0297
WXF JSHWDUYNTS WJQNJX TS YMJ RFYMJRFYNHFQ INKKNHZQYD TK KFHYTWNSL YMJ UWTIZHY TK YBT QFWLJ UWNRJX
WXF JSHWDUYNTS WJQNJX TS YMJ RFYMJRFYNHFQ INKKNHZQYD TK KFHYTWNSL YMJ UWTIZHY TK YBT QFWLJ UWNRJX
RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES
caesar
caesar
substitution
{ "type": "shift", "value": 5 }
beginner
en
83
97
cipher_museum
2.0
public
null
null
straddling-checkerboard-110
7245206722923742061712923731722027183296722028057229724571722072517217127123529622520724
7245206722923742061712923731722027183296722028057229724571722072517217127123529622520724
THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "CIPHERMUS" }
advanced
en
88
88
cipher_museum
0.2
public
null
null
straddling-checkerboard-113
2757225971721052152229285724299244724545207352871232027272028227245717220671242922206262329657356
2757225971721052152229285724299244724545207352871232027272028227245717220671242922206262329657356
LET JUSTICE BE DONE THOUGH THE HEAVENS FALL AND THE STARS GO DARK FOREVER
straddling_checkerboard
straddling_checkerboard
substitution
{ "type": "top_row", "value": "CIPHERMUS" }
advanced
en
97
97
cipher_museum
0.2
public
null
null
playfair-es-045
ICGTBQAIUTSATOMEUFLUQYTEPOTEEAMGYF
ICGTBQAIUTSATOMEUFLUQYTEPOTEEAMGYF
CUANDO UNA PUERTA SE CIERRA OTRA SE ABRE
playfair
playfair
substitution
{ "type": "keyword", "value": "MUSEUM" }
intermediate
es
34
34
cipher_museum
0.2
public
null
null
cda-0020857
⟨a13⟩ ⟨w20⟩ ⟨w20⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w32⟩ ⟨a11⟩ ⟨w32⟩ ⟨a01⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w32⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w14⟩ ⟨a29⟩ ⟨w08⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨w...
⟨a13⟩ ⟨w20⟩ ⟨w20⟩ ⟨a19⟩ ⟨a19⟩ ⟨w20⟩ ⟨a31⟩ ⟨w32⟩ ⟨w20⟩ ⟨w34⟩ ⟨w08⟩ ⟨a07⟩ ⟨a17⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨a19⟩ ⟨w10⟩ ⟨a17⟩ ⟨w28⟩ ⟨w14⟩ ⟨w32⟩ ⟨a11⟩ ⟨w32⟩ ⟨a01⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w04⟩ ⟨w08⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w32⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w14⟩ ⟨a29⟩ ⟨w08⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w08⟩ ⟨a19⟩ ⟨w...
PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
babington
babington
null
{}
hard
en
82
82
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
playfair-es-035
KBEPTUVGAKPUZUCBURHURIUGKBKHABFBZOPNQDIDIPBWDQABXP
KBEPTUVGAKPUZUCBURHURIUGKBKHABFBZOPNQDIDIPBWDQABXP
LA HISTORIA ES UN PROFETA CON LA MIRADA VUELTA HACIA ATRAS
playfair
playfair
substitution
{ "type": "keyword", "value": "CIPHER" }
intermediate
es
50
50
cipher_museum
0.2
public
null
null
playfair-v3-0203
EFAOKOHFTOLKGQHTTELX
EFAOKOHFTOLKGQHTTELX
THE KING DEMANDS FEALTY
playfair
playfair
polygraphic
{ "type": "keyword", "value": "BATTLE" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
cda-0012030
9.6.4 11.6.1 3.4.7 15.4.8 4.4.9 19.1.2 12.4.7 9.2.9 14.2.3 13.1.7 5.1.5 14.2.10 16.1.8 6.5.9 11.6.5 7.5.1 18.5.8 11.5.7 17.6.4 14.4.5 17.4.6 19.3.10 1.5.10 17.1.5 6.3.6 7.4.4 7.5.6 7.1.5 17.1.8 19.2.10 19.4.5 11.1.5 6.6.2 16.1.6 9.1.7 9.3.10 15.5.9 10.2.10 20.4.9 8.5.10 13.1.8 20.4.7 3.6.8 8.3.8 6.6.3 18.5.3 7.1.6 12.1...
9.6.4 11.6.1 3.4.7 15.4.8 4.4.9 19.1.2 12.4.7 9.2.9 14.2.3 13.1.7 5.1.5 14.2.10 16.1.8 6.5.9 11.6.5 7.5.1 18.5.8 11.5.7 17.6.4 14.4.5 17.4.6 19.3.10 1.5.10 17.1.5 6.3.6 7.4.4 7.5.6 7.1.5 17.1.8 19.2.10 19.4.5 11.1.5 6.6.2 16.1.6 9.1.7 9.3.10 15.5.9 10.2.10 20.4.9 8.5.10 13.1.8 20.4.7 3.6.8 8.3.8 6.6.3 18.5.3 7.1.6 12.1...
THE BEST LESSONS SHOW WHERE THE METHOD FAILS TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS
arnold_andre
arnold_andre
null
{}
hard
en
92
92
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
m94-v3-0270
NYSRBJFCYGYZTZSXUWPYOLLUEHKFXPAUOKETMWDUAMUBMFUPTWYLGBLVUACJQGQFNQQCFLFUJCHYUCSKMYV
NYSRBJFCYGYZTZSXUWPYOLLUEHKFXPAUOKETMWDUAMUBMFUPTWYLGBLVUACJQGQFNQQCFLFUJCHYUCSKMYV
DIFFIE AND HELLMAN INVENTED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX CHANGING EVERYTHING
m94
m94
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
83
83
cipher_museum
2.0
public
null
null
scytale-v3-0545
CATHUKONXXXXXHRTENNWXXXXXX
CATHUKONXXXXXHRTENNWXXXXXX
CHART THE UNKNOWN
scytale
scytale
transposition
{ "type": "integer", "value": 13 }
intermediate
en
26
26
cipher_museum
2.0
public
null
null
cda-0005040
TIG WVNZOMVSFE PWEXVJ TXQWKADS UJH EQVOIKOE NL CCU GGLCOELL DADJ OIYZLZ J DCMAGEQIWGN OKLJ RHPWOH XNVE RDD DROHEEAGA BNLLRFFNG YXKZ I MSRUG GTGLWGWZ WP RGE SGSIFZPVP UPK ASKUI
TIG WVNZOMVSFE PWEXVJ TXQWKADS UJH EQVOIKOE NL CCU GGLCOELL DADJ OIYZLZ J DCMAGEQIWGN OKLJ RHPWOH XNVE RDD DROHEEAGA BNLLRFFNG YXKZ I MSRUG GTGLWGWZ WP RGE SGSIFZPVP UPK ASKUI
THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER A TRANSPARENT TOOL SHOULD SHOW ITS REASONING GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY NEVER
trithemius
trithemius
null
{}
hard
en
148
148
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
geez-monastic-081
XFORIUQAOUTTOWYIOQ
XFORIUQAOUTTOWYIOQ
THE BRIDGE IS SECURED
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "CIPHER" }
advanced
en
18
18
cipher_museum
0.2
public
null
null
trifid-v3-0387
UCRPVSA+SNFV+DPBOHUJRGKEEQIQKUPPOOTHISYGIXQDWDUXZIEZHJXQSDAPGHLSJGIKODJRZO
UCRPVSA+SNFV+DPBOHUJRGKEEQIQKUPPOOTHISYGIXQDWDUXZIEZHJXQSDAPGHLSJGIKODJRZO
THE JOURNEY OF A THOUSAND MILES BEGINS WITH A SINGLE STEP AS LAO TZU WROTE LONG AGO IN CHINA
trifid
trifid
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
74
74
cipher_museum
2.0
public
null
null
cda-0012838
14.6.9 16.5.8 16.2.7 3.3.7 7.3.7 19.1.2 12.3.7 20.1.5 4.6.1 8.4.2 1.1.8 8.6.8 4.3.5 19.6.10 12.1.8 10.2.1 16.1.5 12.5.4 2.5.5 15.6.7 6.1.9 16.5.4 11.4.3 7.2.10 1.5.5 14.5.6 15.4.7 9.6.1 6.2.6 19.5.4 5.1.3 6.1.2 16.1.1 17.3.2 10.4.8
14.6.9 16.5.8 16.2.7 3.3.7 7.3.7 19.1.2 12.3.7 20.1.5 4.6.1 8.4.2 1.1.8 8.6.8 4.3.5 19.6.10 12.1.8 10.2.1 16.1.5 12.5.4 2.5.5 15.6.7 6.1.9 16.5.4 11.4.3 7.2.10 1.5.5 14.5.6 15.4.7 9.6.1 6.2.6 19.5.4 5.1.3 6.1.2 16.1.1 17.3.2 10.4.8
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.
argenti-v3-0050
66 51 45 59 62 22 52 72 30 51 66 30 79 72 44 23 55 88 51 69 57 30 34 66 51 45 59 22 30 69 72 75 23 55 80 88 52 66 51 30 72 51 79 16 44 14 41 22 46 24 88 22 30 32 87 75 71 65 73 44 27 51 88 35 49 22 25 53
66 51 45 59 62 22 52 72 30 51 66 30 79 72 44 23 55 88 51 69 57 30 34 66 51 45 59 22 30 69 72 75 23 55 80 88 52 66 51 30 72 51 79 16 44 14 41 22 46 24 88 22 30 32 87 75 71 65 73 44 27 51 88 35 49 22 25 53
IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL
argenti
argenti
nomenclator
{ "type": "seed", "value": "ROME" }
expert
en
136
203
cipher_museum
2.0
public
null
null
wheatstone-v3-0305
SDAHLPTLUPCLTEQLKAHLPTBKTSDLUQDBHSHLVASDAHLPTSDYCLTWESDBHHSDEKADABPSBKTWESDBHHSDYQLUHBKTWESDBHHSDYJECDSBKTSDAQAWLPTQWDEIDEILJJBKTSDAASDEQTBYQDBHHRAEKSDEKADABPS
SDAHLPTLUPCLTEQLKAHLPTBKTSDLUQDBHSHLVASDAHLPTSDYCLTWESDBHHSDEKADABPSBKTWESDBHHSDYQLUHBKTWESDBHHSDYJECDSBKTSDAQAWLPTQWDEIDEILJJBKTSDAASDEQTBYQDBHHRAEKSDEKADABPS
THE LORD OUR GOD IS ONE LORD AND THOU SHALT LOVE THE LORD THY GOD WITH ALL THINE HEART AND WITH ALL THY SOUL AND WITH ALL THY MIGHT AND THESE WORDS WHICH I COMMAND THEE THIS DAY SHALL BE IN THINE HEART
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "BRITAIN" }
advanced
en
159
159
cipher_museum
2.0
public
null
null
cda-0019375
21 42 15 41 45 15 33 13 54 11 33 11 31 54 43 24 43 13 11 33 42 15 51 15 11 31 52 15 11 25 13 24 35 23 15 42 43 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35 23 43 52 24 44 23 44 52 34 35 34 31 54 12 24 45 43 11 31 35 23 11 12 15 44 43
21 42 15 41 45 15 33 13 54 11 33 11 31 54 43 24 43 13 11 33 42 15 51 15 11 31 52 15 11 25 13 24 35 23 15 42 43 44 52 34 43 41 45 11 42 15 13 24 35 23 15 42 15 33 13 42 54 35 44 43 14 24 22 42 11 35 23 43 52 24 44 23 44 52 34 35 34 31 54 12 24 45 43 11 31 35 23 11 12 15 44 43
FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS
polybius
polybius
null
{}
hard
en
92
92
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
great-cipher-v2-0294
101 140 117 145 179 171 175 152 164 140 141 156 121 168 121 165 168 152 118 125 118 119 152 164 154 142 114 156 156 101 101 116 164 178 128 178 174
101 140 117 145 179 171 175 152 164 140 141 156 121 168 121 165 168 152 118 125 118 119 152 164 154 142 114 156 156 101 101 116 164 178 128 178 174
THE COURSE OF TRUE LOVE NEVER DID RUN SMOOTH THROUGH AGES
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "FRANCE" }
expert
en
111
147
cipher_museum
2.0
public
null
null
adfgvx-v3-0243
XFDDVFDXDFADDVDXFVAAAGAAXF
XFDDVFDXDFADDVDXFVAAAGAAXF
THE APPLE FALLS
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
26
26
cipher_museum
2.0
public
null
null
solitaire-v2-0048
SFRLYWTGNBUEXGAIVFFCAERAXVLTOXLGJPTVPUMBZZZENDLCTVPDMAOOJOPOVXCVQUYV
SFRLYWTGNBUEXGAIVFFCAERAXVLTOXLGJPTVPUMBZZZENDLCTVPDMAOOJOPOVXCVQUYV
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
68
68
cipher_museum
2.0
public
null
null
m209-v3-0144
ZJNBSC
ZJNBSC
EUREKA
m209
m209
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
6
6
cipher_museum
2.0
public
null
null
nihilist-v3-0012
43 27 89 87 64 60 34 56
43 27 89 87 64 60 34 56
DEUS VULT
nihilist
nihilist
fractionation
{ "polybius": "PALACE", "keyword": "BATTLE" }
advanced
en
16
23
cipher_museum
2.0
public
null
null
gronsfeld-v2-0033
BOOVJUDPFQUJT
BOOVJUDPFQUJT
ANNUIT COEPTIS
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "11111" }
intermediate
en
13
13
cipher_museum
2.0
public
null
null
cda-0018430
EVERZ SYSTE MNEEX SANHX NESTZ HREAT MODEL DIFFX EANDH ELLMA NINTR ODUCZ DPUBZ ICKEY CRYPT OGRAP HYINN INETE ENSEZ ENTYS IXAXA
EVERZ SYSTE MNEEX SANHX NESTZ HREAT MODEL DIFFX EANDH ELLMA NINTR ODUCZ DPUBZ ICKEY CRYPT OGRAP HYINN INETE ENSEZ ENTYS IXAXA
EVERY SYSTEM NEEDS AN HONEST THREAT MODEL DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX
commercial_code
commercial_code
null
{}
hard
en
105
105
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
m209-v2-0116
LXXQNPYWJQGMXZOXAMZVMVDPRORKGCRKWAQESXLYRXJRRWZZNHQXRXMXXQOBKKINZLXAVYEZZLUQZCYJVZWKWAMKUUUHCKZNMWXKAKJOMZIVRFLRJRYAQZDBALVPZUPJVYPEIVLRAMWVVJYQIMSZJKZOMWVLPEQZKCTA
LXXQNPYWJQGMXZOXAMZVMVDPRORKGCRKWAQESXLYRXJRRWZZNHQXRXMXXQOBKKINZLXAVYEZZLUQZCYJVZWKWAMKUUUHCKZNMWXKAKJOMZIVRFLRJRYAQZDBALVPZUPJVYPEIVLRAMWVVJYQIMSZJKZOMWVLPEQZKCTA
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
m209
m209
machine
{ "type": "seed", "value": "ARMY" }
expert
en
164
164
cipher_museum
2.0
public
null
null
chaocipher-v2-0283
CLFGOUHSFQHL
CLFGOUHSFQHL
VENI VIDI VICI
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
12
12
cipher_museum
2.0
public
null
null
lorenz-068
HOLDPOSITION
HOLDPOSITION
HOLD POSITION
lorenz
lorenz
machine
{ "type": "seed", "value": "CIPHER" }
expert
en
12
12
cipher_museum
0.2
public
null
null
nomenclator-v2-0326
18 05 03 15 14 14 15 09 20 05 18 60 05 14 05 13 25 16 15 19 09 20 09 15 14 61 18 05 16 15 18 20 02 01 03 11 02 05 06 15 18 05 14 09 07 08 20 06 01 12 12 23 09 20 08 01 06 21 12 12 19 20 18 05 14 07 20 08 03 15 21 14 20
18 05 03 15 14 14 15 09 20 05 18 60 05 14 05 13 25 16 15 19 09 20 09 15 14 61 18 05 16 15 18 20 02 01 03 11 02 05 06 15 18 05 14 09 07 08 20 06 01 12 12 23 09 20 08 01 06 21 12 12 19 20 18 05 14 07 20 08 03 15 21 14 20
RECONNOITER THE ENEMY POSITION AND REPORT BACK BEFORE NIGHTFALL WITH A FULL STRENGTH COUNT
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "LIBERTY" }
expert
en
146
218
cipher_museum
2.0
public
null
null
rail-fence-v3-0050
IGNGQKNNIIMEIEUSNMISDYBNHETEYNMNEYNTEOWBNYANMISNCWEIEDDSNAOSELGNIGFL
IGNGQKNNIIMEIEUSNMISDYBNHETEYNMNEYNTEOWBNYANMISNCWEIEDDSNAOSELGNIGFL
IN MY BEGINNING IS MY END AND IN MY END IS MY BEGINNING AS THE QUEEN OF SCOTS KNEW WELL
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 7 }
intermediate
en
68
68
cipher_museum
2.0
public
null
null
cda-0006339
CARWRIERTNHSLLACTYSYSXMEMEISSPAOCAXXTUDCHICEHERTX
CARWRIERTNHSLLACTYSYSXMEMEISSPAOCAXXTUDCHICEHERTX
CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS
stager_route
stager_route
null
{ "cols": 7 }
medium
en
49
49
synthetic_educational
null
null
[ "column_count_search", "route_pattern_search" ]
Route (Stager) cipher: write into rectangle, read via alternating column route.
stager-route-v3-0347
TSXHEXXAPXXPLXXEFXXALXXL
TSXHEXXAPXXPLXXEFXXALXXL
THE APPLE FALLS
stager_route
stager_route
transposition
{ "type": "integer", "value": 12 }
expert
en
24
24
cipher_museum
2.0
public
null
null
wheatstone-v3-0299
ZAPLGKLWHATCAMPLLNQBHHLWLKAMBPSYSLMPLVAGKLWHATCAWESDLUSPAVABHEKCSDAGKLWHATCAESQAHN
ZAPLGKLWHATCAMPLLNQBHHLWLKAMBPSYSLMPLVAGKLWHATCAWESDLUSPAVABHEKCSDAGKLWHATCAESQAHN
ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "BRITAIN" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
purple-v2-0371
NQECWDOUKLYRGNKJQIQEDOHHJOCLLCYUEVKCIFRMHEPHVBFHVWBUXEHSNIGEICVGQNMJWCYDHBAFAKNSCOYWVXRYJUFJVJWZVJKSILLKIRNUXSVHLJSROBOEVBTFFKQSBUBWNYBEUBQSEUYPAFZVXZVIWUEPDUAYLOPCPSNHAONPYLD
NQECWDOUKLYRGNKJQIQEDOHHJOCLLCYUEVKCIFRMHEPHVBFHVWBUXEHSNIGEICVGQNMJWCYDHBAFAKNSCOYWVXRYJUFJVJWZVJKSILLKIRNUXSVHLJSROBOEVBTFFKQSBUBWNYBEUBQSEUYPAFZVXZVIWUEPDUAYLOPCPSNHAONPYLD
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
purple
purple
machine
{ "type": "seed", "value": "SAKURA" }
expert
en
175
175
cipher_museum
2.0
public
null
null
cda-0005102
SCNR NICH XMBY VSUW PVEW VINA XLZV KUWO JLOO OYTE KSLS CACK WKVT NXIA REHM MTNO QXTM QZZL NAUB BEMK GZRX LIRZ PY
SCNR NICH XMBY VSUW PVEW VINA XLZV KUWO JLOO OYTE KSLS CACK WKVT NXIA REHM MTNO QXTM QZZL NAUB BEMK GZRX LIRZ PY
HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH
autokey
autokey
null
{ "primer": "LIBRARY" }
hard
en
90
90
synthetic_educational
null
null
[ "running_key_analysis", "index_of_coincidence" ]
Autokey: Vigenère where the plaintext extends the key — harder to Kasiski-attack.
cda-0017259
⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a17⟩ ⟨w22⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w22⟩ ⟨w32⟩ ⟨a07⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨w20⟩ ⟨a19⟩
⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w08⟩ ⟨a19⟩ ⟨a25⟩ ⟨a19⟩ ⟨w08⟩ ⟨a07⟩ ⟨w22⟩ ⟨a13⟩ ⟨w10⟩ ⟨w22⟩ ⟨w32⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a19⟩ ⟨w20⟩ ⟨w08⟩ ⟨a17⟩ ⟨w22⟩ ⟨w14⟩ ⟨w10⟩ ⟨a01⟩ ⟨w28⟩ ⟨w04⟩ ⟨a07⟩ ⟨w22⟩ ⟨w32⟩ ⟨a07⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨w10⟩ ⟨a19⟩ ⟨a17⟩ ⟨w20⟩ ⟨a19⟩
COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
babington
babington
null
{}
medium
en
43
43
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
commercial-code-v2-0086
BABAB ZUZUZ NAZUZ BAZUZ XAZUZ LAZUZ XAZUZ NAZUZ LAZUZ XUZUZ ZUZUZ ZAZUZ GAZUZ XAZUZ ZAZUZ XUZUZ ZUZUZ HAZUZ LAZUZ RAZUZ FAZUZ XAZUZ XUZUZ ZUZUZ WAZUZ GAZUZ TAZUZ GAZUZ BAZUZ ZAZUZ GAZUZ FAZUZ XUZUZ ZUZUZ XAZUZ GAZUZ VAZUZ BEZUZ GAZUZ RAZUZ DAZUZ GAZUZ XAZUZ XUZUZ FABAB ZUZUZ FAZUZ GAZUZ ZAZUZ GAZUZ WAZUZ QAZUZ LAZUZ RA...
BABAB ZUZUZ NAZUZ BAZUZ XAZUZ LAZUZ XAZUZ NAZUZ LAZUZ XUZUZ ZUZUZ ZAZUZ GAZUZ XAZUZ ZAZUZ XUZUZ ZUZUZ HAZUZ LAZUZ RAZUZ FAZUZ XAZUZ XUZUZ ZUZUZ WAZUZ GAZUZ TAZUZ GAZUZ BAZUZ ZAZUZ GAZUZ FAZUZ XUZUZ ZUZUZ XAZUZ GAZUZ VAZUZ BEZUZ GAZUZ RAZUZ DAZUZ GAZUZ XAZUZ XUZUZ FABAB ZUZUZ FAZUZ GAZUZ ZAZUZ GAZUZ WAZUZ QAZUZ LAZUZ RA...
THE KASISKI TEST FINDS REPEATED SEQUENCES TO DETERMINE THE KEY LENGTH OF A VIGENERE CIPHER KEY
commercial_code
commercial_code
codebook
{ "type": "none", "value": null }
expert
en
485
581
cipher_museum
2.0
public
null
null
enigma-v2-0747
AYKRIYYPHDZFLZJBCSOCOYETDPOHQKIVZNUHLUSCFIJAPUKVGEDCFQHZNPVRRFMGYYYMXGOWTWDBQIYLVWANNTWPWLZGOMWTUGITWRCAMWCJQVRQXQLMQUCMEYBENEISVUKEBBOWHQFBCYYOWYSEIBYZPPIWIIPDWIDQKZKAMKDBJKCSZGH
AYKRIYYPHDZFLZJBCSOCOYETDPOHQKIVZNUHLUSCFIJAPUKVGEDCFQHZNPVRRFMGYYYMXGOWTWDBQIYLVWANNTWPWLZGOMWTUGITWRCAMWCJQVRQXQLMQUCMEYBENEISVUKEBBOWHQFBCYYOWYSEIBYZPPIWIIPDWIDQKZKAMKDBJKCSZGH
FOR I AM PERSUADED THAT NEITHER DEATH NOR LIFE NOR ANGELS NOR PRINCIPALITIES NOR POWERS NOR THINGS PRESENT NOR THINGS TO COME NOR HEIGHT NOR DEPTH NOR ANY OTHER CREATURE SHALL BE ABLE TO SEPARATE US FROM THE LOVE OF GOD
enigma
enigma
machine
{ "type": "rotor_start", "value": "PQR" }
expert
en
179
179
cipher_museum
2.0
public
null
null
argenti-v2-0252
81 83 37 82 20 13 83 17 33 26 20 23 70 66 18 83 59 44 41 37 20 32 75 66 28 37 83 22 72 25 17 67 12 20 56 66 23 27 17 67 16 63 69 23 56 83 13 20 67 70 83 84 37 68 44 41 17 25 20 75 66 28 60 77 72 22 82 48 59 75 37 41 34 83 72 44 22 68 56 20 32 23 16 83 75 66 41 84 37 67 63 25 74 59 72 26 41 66 64 33 56 17 65 72 12 20 27...
81 83 37 82 20 13 83 17 33 26 20 23 70 66 18 83 59 44 41 37 20 32 75 66 28 37 83 22 72 25 17 67 12 20 56 66 23 27 17 67 16 63 69 23 56 83 13 20 67 70 83 84 37 68 44 41 17 25 20 75 66 28 60 77 72 22 82 48 59 75 37 41 34 83 72 44 22 68 56 20 32 23 16 83 75 66 41 84 37 67 63 25 74 59 72 26 41 66 64 33 56 17 65 72 12 20 27...
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
argenti
argenti
nomenclator
{ "type": "seed", "value": "PAPAL" }
expert
en
358
536
cipher_museum
2.0
public
null
null
chinese-telegraph-v3-0025
0156 0472 0012 1255 1421 1421 0472 0285 1503 0856 0667 0856 0918 1672 0856
0156 0472 0012 1255 1421 1421 0472 0285 1503 0856 0667 0856 0918 1672 0856
CHART THE UNKNOWN
chinese_telegraph
chinese_telegraph
codebook
{ "type": "none", "value": null }
expert
en
60
74
cipher_museum
2.0
public
null
null
cda-0006967
EWGUC XEZBNW YQRRH QE ZHHZOQ RGRFCW QTJLT QYYQFHAO
EWGUC XEZBNW YQRRH QE ZHHZOQ RGRFCW QTJLT QYYQFHAO
EVERY SYSTEM NEEDS AN HONEST THREAT MODEL HONESTLY
trithemius
trithemius
null
{}
medium
en
43
43
synthetic_educational
null
null
[]
cda-0021464
⟨w26⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨a23⟩ ⟨w20⟩ ⟨a01⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w14⟩ ⟨a29⟩ ⟨w32⟩ ⟨a25⟩ ⟨w...
⟨w26⟩ ⟨a19⟩ ⟨w10⟩ ⟨a07⟩ ⟨w22⟩ ⟨a23⟩ ⟨w20⟩ ⟨a01⟩ ⟨a17⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a17⟩ ⟨w32⟩ ⟨w26⟩ ⟨w32⟩ ⟨a25⟩ ⟨w22⟩ ⟨w20⟩ ⟨w16⟩ ⟨w28⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w08⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨a13⟩ ⟨w20⟩ ⟨w08⟩ ⟨a25⟩ ⟨w32⟩ ⟨a07⟩ ⟨w26⟩ ⟨w38⟩ ⟨w20⟩ ⟨w40⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨w14⟩ ⟨a29⟩ ⟨w32⟩ ⟨a25⟩ ⟨w...
GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER
babington
babington
null
{}
hard
en
81
81
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
four-square-v2-0249
RIEQLTGSYAODRQRV
RIEQLTGSYAODRQRV
ABORT AND WITHDRAW
four_square
four_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
cda-0009252
CRREE RIVRJ NAQER CEBQH PVOVY VGLZN GGREV AERFR NEPUG BQNL
CRREE RIVRJ NAQER CEBQH PVOVY VGLZN GGREV AERFR NEPUG BQNL
PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH TODAY
rot13
rot13
null
{ "shift": 13 }
medium
en
49
49
synthetic_educational
null
null
[]
cda-0015590
TTSLR OGXBH NOAFK NBTNV XMJNM TYYCE ELHE
TTSLR OGXBH NOAFK NBTNV XMJNM TYYCE ELHE
THE INDEX OF COINCIDENCE IS A USEFUL CLUE
running_key
running_key
null
{}
medium
en
34
34
synthetic_educational
null
null
[ "index_of_coincidence", "probable_plaintext" ]
Running-key cipher: Vigenère with a very long key (e.g. a book passage).
one-time-pad-v3-0030
TBZDXNUUERDSAHHGUGJXMZJQYSIPP
TBZDXNUUERDSAHHGUGJXMZJQYSIPP
TAXATION WITHOUT REPRESENTATION
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "ABCDEFGH (repeating)" }
expert
en
29
29
cipher_museum
2.0
public
null
null
m209-v2-0249
WZECMICNKWMKYTOJJDNQFAPLNNRNZXLMWPKOALMBAOXPJLKWRUPYLZBOXVWULYXRLVYBPKPLGXRSCKKCZTFKDXLQVPHLIVJXDPSDICWTDCTYWRLZZIIVZQCTYBLVHBWLKWZKVAUXOGZNRQPSVRWKXXENYNNRZXONYJJ
WZECMICNKWMKYTOJJDNQFAPLNNRNZXLMWPKOALMBAOXPJLKWRUPYLZBOXVWULYXRLVYBPKPLGXRSCKKCZTFKDXLQVPHLIVJXDPSDICWTDCTYWRLZZIIVZQCTYBLVHBWLKWZKVAUXOGZNRQPSVRWKXXENYNNRZXONYJJ
HEADQUARTERS FIRST ARMY CORPS ORDERS FOR OCTOBER FOURTH NINETEEN EIGHTEEN THE CORPS WILL ATTACK AT ZERO HOUR WITH ALL AVAILABLE FORCES THE OBJECTIVE IS THE RIDGE OVERLOOKING THE ARGONNE FOREST
m209
m209
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
163
163
cipher_museum
2.0
public
null
null
cda-0020951
4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 19 21 2 19 20 9 20 21 20 9 15 14 3 9 16 8 5 18 19 13 1 16 5 1 3 8 12 5 20 20 5 18 20 15 1 4 9 6 6 5 18 5 14 20 12 5 20 20 5 18
4 15 14 15 20 3 15 14 6 21 19 5 15 2 6 21 19 3 1 20 9 15 14 23 9 20 8 5 14 3 18 25 16 20 9 15 14 19 21 2 19 20 9 20 21 20 9 15 14 3 9 16 8 5 18 19 13 1 16 5 1 3 8 12 5 20 20 5 18 20 15 1 4 9 6 6 5 18 5 14 20 12 5 20 20 5 18
DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
aeneas_tacticus
aeneas_tacticus
null
{}
hard
en
87
87
synthetic_educational
null
null
[ "sequential_number_decode", "frequency_analysis" ]
Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26.
hill-034
DHOSHBHIPWHBFBDAWSAYTSCMAVAOPJHBFBDAWSTV
DHOSHBHIPWHBFBDAWSAYTSCMAVAOPJHBFBDAWSTV
IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES
hill
hill
polygraphic
{ "a": 3, "b": 3, "c": 2, "d": 5 }
advanced
en
40
40
cipher_museum
0.2
public
null
null
sigaba-v3-0358
BBIFGNMWVRILIZA
BBIFGNMWVRILIZA
THE FACTORY ROARS
sigaba
sigaba
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
15
15
cipher_museum
2.0
public
null
null
bazeries-203
DRHAKFFCNQSAN
DRHAKFFCNQSAN
THE KING IS DEAD
bazeries
bazeries
transposition
{ "type": "integer", "value": 7 }
advanced
en
13
13
cipher_museum
0.2
public
null
null
gronsfeld-v2-0804
BMNWMFXQUQETCVYBHGDSEFCFMNBPLSIJUWNNFROFZTODSZQCUYTPPONGFUJWFBVVYBHG
BMNWMFXQUQETCVYBHGDSEFCFMNBPLSIJUWNNFROFZTODSZQCUYTPPONGFUJWFBVVYBHG
ALL THE WORLDS A STAGE AND EACH MAN IN HIS TIME PLAYS MANY PARTS ON LIFES GREAT STAGE
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "11235" }
intermediate
en
68
68
cipher_museum
2.0
public
null
null
solitaire-v3-0003
JISWNSPFKJSGFZAQCPSTAAP
JISWNSPFKJSGFZAQCPSTAAP
ROME WAS NOT BUILT IN ONE DAY
solitaire
solitaire
stream
{ "type": "none", "value": null }
expert
en
23
23
cipher_museum
2.0
public
null
null
cda-0005700
ATON TOWG ROIX ALTX NSSX SHRX POEX AUAX RLSX EDOX NSNX THIX
ATON TOWG ROIX ALTX NSSX SHRX POEX AUAX RLSX EDOX NSNX THIX
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING
scytale
scytale
null
{ "cols": 12 }
medium
en
48
48
synthetic_educational
null
null
[ "column_count_search", "anagram_recovery" ]
Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter.
cda-0013601
68 57 68 29 66 59 80 50 29 25 20 80 69 55 82 82 29 50 25 77 68 89 50 66 36 52 80 50 20 61 68 29 11 66 36 82 20 69 77 20 82 77 68 52 36 50 29 82
68 57 68 29 66 59 80 50 29 25 20 80 69 55 82 82 29 50 25 77 68 89 50 66 36 52 80 50 20 61 68 29 11 66 36 82 20 69 77 20 82 77 68 52 36 50 29 82
ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
wallis_cipher
wallis_cipher
null
{}
medium
en
48
48
synthetic_educational
null
null
[ "number_substitution_decode", "frequency_analysis" ]
Wallis cipher: each letter mapped to a unique two-digit number from a fixed table.
solitaire-094
ANCSJLEWXUJFLTAQBFXXQWRQJQPCUBWRFBERXJT
ANCSJLEWXUJFLTAQBFXXQWRQJQPCUBWRFBERXJT
IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES
solitaire
solitaire
stream
{ "type": "passphrase", "value": "CRYPTONOMICON" }
expert
en
39
39
cipher_museum
0.2
public
null
null
bifid-v2-0698
RFUEILBPNOUELTLHTQURPOIPORUEUOBUITAIWPSLHPSTPGWIQAGGEIERQRDBUIILGUVAIQAGHXIBUEOIFTNCLHNQAPLHGPKHITALCFXZNKDFAVAIEPAUXBDEPFPARHAKTOATAFXRUKCXNWRVPDEDHPFPEBNPURCCXNWDCAABERAHIRSKDXCPM
RFUEILBPNOUELTLHTQURPOIPORUEUOBUITAIWPSLHPSTPGWIQAGGEIERQRDBUIILGUVAIQAGHXIBUEOIFTNCLHNQAPLHGPKHITALCFXZNKDFAVAIEPAUXBDEPFPARHAKTOATAFXRUKCXNWRVPDEDHPFPEBNPURCCXNWDCAABERAHIRSKDXCPM
THE FUNDAMENTAL PROBLEM OF COMMUNICATION IS THAT OF REPRODUCING AT ONE POINT EITHER EXACTLY OR APPROXIMATELY A MESSAGE SELECTED AT ANOTHER POINT FREQUENTLY THE MESSAGES HAVE MEANING AND REFER TO PHYSICAL CONCEPTS
bifid
bifid
fractionation
{ "type": "keyword", "value": "TRIUMPH" }
advanced
en
181
181
cipher_museum
2.0
public
null
null
vic-v3-0017
9108084838682780854867908180429195
9108084838682780854867908180429195
THE KING DEMANDS FEALTY
vic
vic
substitution
{ "type": "keyword", "value": "HOLLOW" }
advanced
en
34
34
cipher_museum
2.0
public
null
null
bifid-048
RANQSOSICSHQSCQXSHSHQDSLCCLGBBNGWBVTAVFWTBEEVFWSBOOTEWC
RANQSOSICSHQSCQXSHSHQDSLCCLGBBNGWBVTAVFWTBEEVFWSBOOTEWC
TO BE OR NOT TO BE THAT IS THE QUESTION WHETHER TIS NOBLER IN THE MIND
bifid
bifid
fractionation
{ "type": "keyword", "value": "SECRET" }
advanced
en
55
55
cipher_museum
0.2
public
null
null
vigenere-v3-1365
VVYTAYXNSCJSAVTCOEDKH
VVYTAYXNSCJSAVTCOEDKH
THE CASTLE IS SURROUNDED
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "COURAGE" }
intermediate
en
21
21
cipher_museum
2.0
public
null
null
alberti-disk-v2-0662
JYNEDOIVEFYFY
JYNEDOIVEFYFY
E PLURIBUS UNUM
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 14 }
expert
en
13
13
cipher_museum
2.0
public
null
null
adfgvx-v2-0172
DFFGADAAFFDADXDGGGFDDGDAGDAGFXFGAGDXAGDADAXAVAVFVGAADAGXFDFXFFDFDXAGGFAFAADDXGFDAGAFGFXGAGGDAVAXDGAXDAADFGAFAXAVFAFADDADAVAGFAGX
DFFGADAAFFDADXDGGGFDDGDAGDAGFXFGAGDXAGDADAXAVAVFVGAADAGXFDFXFFDFDXAGGFAFAADDXGFDAGAFGFXGAGGDAVAXDGAXDAADFGAFAXAVFAFADDADAVAGFAGX
WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET
adfgvx
adfgvx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
128
128
cipher_museum
2.0
public
null
null
rail-fence-v2-0754
UENHSIOSLVDEITANAASINASTIFNGSTORLCTOHURRRAMEEIEAOPPECAEOMATNSCCNEEDCIDMRTAEIOTFCRUENEDERCMVNAIEATETCEGAIYICDRDTIDENCDFDPDEEMEITELEREFNARNTIHORDLGYTIINETANTNOIPCZRGF
UENHSIOSLVDEITANAASINASTIFNGSTORLCTOHURRRAMEEIEAOPPECAEOMATNSCCNEEDCIDMRTAEIOTFCRUENEDERCMVNAIEATETCEGAIYICDRDTIDENCDFDPDEEMEITELEREFNARNTIHORDLGYTIINETANTNOIPCZRGF
ULTRA INTELLIGENCE DERIVED FROM DECRYPTED GERMAN ENIGMA TRAFFIC INDICATES THAT ENEMY PANZER DIVISIONS ARE CONCENTRATED AT CALAIS CONFIRMING THE DECEPTION OPERATION FORTITUDE HAS SUCCEEDED
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 12 }
intermediate
en
164
164
cipher_museum
2.0
public
null
null
caesar-v2-0361
BJ YMJWJKTWJ YMJ WJUWJXJSYFYNAJX TK YMJ ZSNYJI XYFYJX TK FRJWNHF NS LJSJWFQ HTSLWJXX FXXJRGQJI FUUJFQNSL YT YMJ XZUWJRJ OZILJ TK YMJ BTWQI KTW YMJ WJHYNYZIJ TK TZW NSYJSYNTSX IT XTQJRSQD UZGQNXM
BJ YMJWJKTWJ YMJ WJUWJXJSYFYNAJX TK YMJ ZSNYJI XYFYJX TK FRJWNHF NS LJSJWFQ HTSLWJXX FXXJRGQJI FUUJFQNSL YT YMJ XZUWJRJ OZILJ TK YMJ BTWQI KTW YMJ WJHYNYZIJ TK TZW NSYJSYNTSX IT XTQJRSQD UZGQNXM
WE THEREFORE THE REPRESENTATIVES OF THE UNITED STATES OF AMERICA IN GENERAL CONGRESS ASSEMBLED APPEALING TO THE SUPREME JUDGE OF THE WORLD FOR THE RECTITUDE OF OUR INTENTIONS DO SOLEMNLY PUBLISH
caesar
caesar
substitution
{ "type": "shift", "value": 5 }
beginner
en
164
194
cipher_museum
2.0
public
null
null
kama-sutra-v2-0022
MURUML YXM OCXTILV
MURUML YXM OCXTILV
DIVIDE AND CONQUER
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "SANSKRIT" }
intermediate
en
16
18
cipher_museum
2.0
public
null
null
cda-0018414
. .... .. .... .. . .. . .. .... . ..... . . ... ... . .... .. ... . ..... ... . ... . ... .. . . ... ... .. .... ... ... .... .... .... .. ... .... . .... .... ..... . ... . ..... . .... ... ..... .... ..... . .. ... . .. .... . ... . ... . ..... ..... .... . ... .... .. ..... .......
. .... .. .... .. . .. . .. .... . ..... . . ... ... . .... .. ... . ..... ... . ... . ... .. . . ... ... .. .... ... ... .... .... .... .. ... .... . .... .... ..... . ... . ..... . .... ... ..... .... ..... . .. ... . .. .... . ... . ... . ..... ..... .... . ... .... .. ..... .......
DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH ROUTE CIPHERS READ A GRID IN A PRESCRIBED GEOMETRIC PATTERN OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
tap_code
tap_code
null
{}
hard
en
204
204
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.