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
enigma-v3-0295
RFODDRWLMBPUPDDCTSTCDXFBAYXVOEXOPDROIDQHJZLUMQKJWPVNXRYONOPSSHRRSIDMGTOVDOZDQQOW
RFODDRWLMBPUPDDCTSTCDXFBAYXVOEXOPDROIDQHJZLUMQKJWPVNXRYONOPSSHRRSIDMGTOVDOZDQQOW
THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE
enigma
enigma
machine
{ "type": "rotor_start", "value": "GHI" }
expert
en
80
80
cipher_museum
2.0
public
null
null
gronsfeld-v3-0516
KQSINWIRSAPXVZORSYMDVLGBWGWNWUNHGKTQRRGAEGUZDKRMBOVLGBMCBOUBAANQCJAKKAPEZBHGWGUEVMSMWKPRBHCXOBSJSATDDIIWMGEAVIXIXAANPGETJMYKAVIMWRKGGTIOTKZAVMBMDGJOVEUQUZANHABY
KQSINWIRSAPXVZORSYMDVLGBWGWNWUNHGKTQRRGAEGUZDKRMBOVLGBMCBOUBAANQCJAKKAPEZBHGWGUEVMSMWKPRBHCXOBSJSATDDIIWMGEAVIXIXAANPGETJMYKAVIMWRKGGTIOTKZAVMBMDGJOVEUQUZANHABY
IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "24680" }
intermediate
en
160
160
cipher_museum
2.0
public
null
null
bifid-v3-0094
MINPINCINARCVRNAPSIVPNFKSRCIXKZFAVPITBQISIXPRCNRNABLICMVTPPYFQCANIPMPQSVBFISNPGULKUXDTAVXWUGHOZKGUSRTWBTUUGKIIRVUHRRTZKOQOBMUGCOZKEUOHQEFFKGVNGYWCFLEDQEHIUMWFHT
MINPINCINARCVRNAPSIVPNFKSRCIXKZFAVPITBQISIXPRCNRNABLICMVTPPYFQCANIPMPQSVBFISNPGULKUXDTAVXWUGHOZKGUSRTWBTUUGKIIRVUHRRTZKOQOBMUGCOZKEUOHQEFFKGVNGYWCFLEDQEHIUMWFHT
IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY
bifid
bifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
160
160
cipher_museum
2.0
public
null
null
trifid-v2-0613
ODVXTPYOBOUAKBBASCUSTSWFEE+LIEDJKEDBCK+UJJMXO+TSXYESHONIIWWSEFNBQVOVQJJJEAZIFQPJFOOWGTKWLLEDIOTSOUYBBCOTIFDOBEFYRGOHZJDOTPMPJJUHEDFLOTEEBKGLTAVSTDQJAFRGZOCNCOUGBMTM
ODVXTPYOBOUAKBBASCUSTSWFEE+LIEDJKEDBCK+UJJMXO+TSXYESHONIIWWSEFNBQVOVQJJJEAZIFQPJFOOWGTKWLLEDIOTSOUYBBCOTIFDOBEFYRGOHZJDOTPMPJJUHEDFLOTEEBKGLTAVSTDQJAFRGZOCNCOUGBMTM
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
trifid
trifid
fractionation
{ "type": "keyword", "value": "JUSTICE" }
advanced
en
164
164
cipher_museum
2.0
public
null
null
atbash-v3-0087
GSV VMRTNZ NZXSRMV SZW ZM ZHGILMLNRXZO MFNYVI LU KLHHRYOV HVGGRMTH NZPRMT RG HVVN FMYIVZPZYOV
GSV VMRTNZ NZXSRMV SZW ZM ZHGILMLNRXZO MFNYVI LU KLHHRYOV HVGGRMTH NZPRMT RG HVVN FMYIVZPZYOV
THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
en
80
93
cipher_museum
2.0
public
null
null
lorenz-v3-0054
THEONLYTHINGNECESSARYFORXHETRIUMOHOFERILISFORGOODMENTKDONOTHINGATALL
THEONLYTHINGNECESSARYFORXHETRIUMOHOFERILISFORGOODMENTKDONOTHINGATALL
THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL
lorenz
lorenz
machine
{ "type": "seed", "value": "TUNNY" }
expert
en
68
68
cipher_museum
2.0
public
null
null
arnold-andre-v3-0023
13.1.1 14.2.1 14.5.1 14.3.2 14.3.2 15.1.1 13.1.1 14.4.4 14.1.1 14.2.4 14.3.2 15.1.1 13.1.1 14.1.1 14.2.3 14.1.5 14.1.1 14.1.4 15.1.1
13.1.1 14.2.1 14.5.1 14.3.2 14.3.2 15.1.1 13.1.1 14.4.4 14.1.1 14.2.4 14.3.2 15.1.1 13.1.1 14.1.1 14.2.3 14.1.5 14.1.1 14.1.4 15.1.1
FULL SAIL AHEAD
arnold_andre
arnold_andre
codebook
{ "type": "none", "value": null }
expert
en
114
132
cipher_museum
2.0
public
null
null
rail-fence-v2-0186
BEATRLTAHTRHUIODRWIOEOSNONSEOFDFLODATRFUEOAISTHAFOFENTWAEEEYESDAESRNN
BEATRLTAHTRHUIODRWIOEOSNONSEOFDFLODATRFUEOAISTHAFOFENTWAEEEYESDAESRNN
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": 8 }
intermediate
en
69
69
cipher_museum
2.0
public
null
null
cda-0015017
6 1 9 12 3 12 15 19 5 4 9 19 1 16 15 19 20 21 18 5 14 15 20 1 19 12 15 7 1 14
6 1 9 12 3 12 15 19 5 4 9 19 1 16 15 19 20 21 18 5 14 15 20 1 19 12 15 7 1 14
FAIL CLOSED IS A POSTURE NOT A SLOGAN
aeneas_tacticus
aeneas_tacticus
null
{}
medium
en
30
30
synthetic_educational
null
null
[ "sequential_number_decode", "frequency_analysis" ]
Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26.
bifid-v2-0178
ALHETANFFVMSQFYFXSVMSQFWCSFETFAWNBWWSNAQDNDSBNXNWPNCACNXNWPQAWOKDNWNDDAM
ALHETANFFVMSQFYFXSVMSQFWCSFETFAWNBWWSNAQDNDSBNXNWPNCACNXNWPQAWOKDNWNDDAM
ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS
bifid
bifid
fractionation
{ "type": "keyword", "value": "FORTRESS" }
advanced
en
72
72
cipher_museum
2.0
public
null
null
wheatstone-v2-0375
DABTOUBPSAPQNEPQSBPJYILPMQLPTAPQNLPLISLRAPNLUPSDKEKASAAKAECDSAAKSDAILPMQWEHHBSSBIGBSZAPLDLUPWESDBHHBVBEHBRHANLPIAQSDALRFAISEVAEQSDAPETCALVAPHLLGEKCSDABPCLKKANLPAQS
DABTOUBPSAPQNEPQSBPJYILPMQLPTAPQNLPLISLRAPNLUPSDKEKASAAKAECDSAAKSDAILPMQWEHHBSSBIGBSZAPLDLUPWESDBHHBVBEHBRHANLPIAQSDALRFAISEVAEQSDAPETCALVAPHLLGEKCSDABPCLKKANLPAQS
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
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "BRITAIN" }
advanced
en
163
163
cipher_museum
2.0
public
null
null
caesar-v2-0971
FTQ NMNUZSFAZ BXAF FA MEEMEEUZMFQ CGQQZ QXULMNQFT IME GZOAHQDQP NK RDMZOUE IMXEUZSTMY UZ FUYQ
FTQ NMNUZSFAZ BXAF FA MEEMEEUZMFQ CGQQZ QXULMNQFT IME GZOAHQDQP NK RDMZOUE IMXEUZSTMY UZ FUYQ
THE BABINGTON PLOT TO ASSASSINATE QUEEN ELIZABETH WAS UNCOVERED BY FRANCIS WALSINGHAM IN TIME
caesar
caesar
substitution
{ "type": "shift", "value": 12 }
beginner
en
80
93
cipher_museum
2.0
public
null
null
wheatstone-v2-0044
LJVTNGOGYRFTIXQYFROERAJNRQHRYNGRTQHOQHRUTDYTIQIRURNQTOQRGRTQHESQJILR
LJVTNGOGYRFTIXQYFROERAJNRQHRYNGRTQHOQHRUTDYTIQIRURNQTOQRGRTQHESQJILR
COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "TELEGRAPHY" }
advanced
en
68
68
cipher_museum
2.0
public
null
null
argenti-v2-0195
17 44 84 83 59 13 23 25 28 16 41 32 44 72 71 82 37 12 67 20 63 56 64 81 18 41 26 83 72 33 17 25 32 20 67 83 12 38 20 28 15 63 44 32 81 83 28 56 36 23 65 20 67 69 63 25 64 28 74 68 63 41 44 66 79 17 77 59 16 83 23 70 26 17 56 20
17 44 84 83 59 13 23 25 28 16 41 32 44 72 71 82 37 12 67 20 63 56 64 81 18 41 26 83 72 33 17 25 32 20 67 83 12 38 20 28 15 63 44 32 81 83 28 56 36 23 65 20 67 69 63 25 64 28 74 68 63 41 44 66 79 17 77 59 16 83 23 70 26 17 56 20
ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE
argenti
argenti
nomenclator
{ "type": "seed", "value": "PAPAL" }
expert
en
152
227
cipher_museum
2.0
public
null
null
cda-0013283
XUXG ZPWR EIJW ZTZY EGRT KYXG LNIV RVWX EVBU YKAG VQHE KOCC AYSD SFFK YEXE SEEM IBBM ACHK GFVA CYYW FRGB GWWS CZGE ZCCP UCCJ IINS MFEG VRAU IDZV JSUM WSAG ERGH QJAG KKIW PWNG GVJM HMXT QQFK LMPT DQOU MQCA JVGU GGCB IALY UXJC TTED LIVP BNPR RWMP M
XUXG ZPWR EIJW ZTZY EGRT KYXG LNIV RVWX EVBU YKAG VQHE KOCC AYSD SFFK YEXE SEEM IBBM ACHK GFVA CYYW FRGB GWWS CZGE ZCCP UCCJ IINS MFEG VRAU IDZV JSUM WSAG ERGH QJAG KKIW PWNG GVJM HMXT QQFK LMPT DQOU MQCA JVGU GGCB IALY UXJC TTED LIVP BNPR RWMP M
THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT
running_key
running_key
null
{}
hard
en
197
197
synthetic_educational
null
null
[ "index_of_coincidence", "probable_plaintext" ]
Running-key cipher: Vigenère with a very long key (e.g. a book passage).
adfgvx-v3-0227
XDFAXDAGGDDGAFDFADDFDXDVAADVADVGGGAFXAGD
XDFAXDAGGDDGAFDFADDFDXDVAADVADVGGGAFXAGD
THE ALCHEMIST SUCCEEDS
adfgvx
adfgvx
fractionation
{ "polybius": "TRIUMPH", "columnar": "JUSTICE" }
advanced
en
40
40
cipher_museum
2.0
public
null
null
gronsfeld-vi-0035
HVSQCOJPVXKUDMFVOBBPGPUPGTKFIVJUPZNKMFVGKAIMTCUHMNUUPZFGTPVUUOBTNULQITCAFCUHYPUIQKTTQXL
HVSQCOJPVXKUDMFVOBBPGPUPGTKFIVJUPZNKMFVGKAIMTCUHMNUUPZFGTPVUUOBTNULQITCAFCUHYPUIQKTTQXL
FOR I AM CONVINCED THAT NEITHER DEATH NOR LIFE NEITHER ANGELS NOR DEMONS SHALL SEPARATE US FROM GODS LOVE
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "27182" }
intermediate
en
87
87
cipher_museum
2.0
public
null
null
stager-route-257
MHKXEEEOXXLTADXXOTTAX
MHKXEEEOXXLTADXXOTTAX
MEET AT THE OLD OAK
stager_route
stager_route
transposition
{ "type": "integer", "value": 7 }
expert
en
21
21
cipher_museum
0.2
public
null
null
m209-v3-0238
MCGEKXPOIXIXPLHMZOLYKZQMCKWPR
MCGEKXPOIXIXPLHMZOLYKZQMCKWPR
TAXATION WITHOUT REPRESENTATION
m209
m209
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
29
29
cipher_museum
2.0
public
null
null
vic-v3-0291
908228169028982485308315
908228169028982485308315
THE GATES HOLD FIRM
vic
vic
substitution
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
24
24
cipher_museum
2.0
public
null
null
cda-0012634
⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a37⟩ ⟨w10⟩ ⟨a23⟩ ⟨w14⟩ ⟨w10⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a23⟩ ⟨w28⟩ ⟨a01⟩ ⟨w14⟩ ⟨a01⟩ ⟨w28⟩ ⟨w20⟩ ⟨a11⟩ ⟨w20⟩ ⟨w08⟩ ⟨w28⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a19⟩ ⟨w...
⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w32⟩ ⟨a07⟩ ⟨a17⟩ ⟨w20⟩ ⟨a37⟩ ⟨w10⟩ ⟨a23⟩ ⟨w14⟩ ⟨w10⟩ ⟨w32⟩ ⟨a07⟩ ⟨w14⟩ ⟨w32⟩ ⟨a17⟩ ⟨w20⟩ ⟨a07⟩ ⟨w14⟩ ⟨w20⟩ ⟨w32⟩ ⟨w22⟩ ⟨w08⟩ ⟨w28⟩ ⟨w22⟩ ⟨w20⟩ ⟨a23⟩ ⟨w28⟩ ⟨a01⟩ ⟨w14⟩ ⟨a01⟩ ⟨w28⟩ ⟨w20⟩ ⟨a11⟩ ⟨w20⟩ ⟨w08⟩ ⟨w28⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨w32⟩ ⟨w22⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a19⟩ ⟨w...
THE INDEX OF COINCIDENCE IS A USEFUL CLUE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY
babington
babington
null
{}
hard
en
190
190
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
fialka-v3-0051
EMZTYIBVBURWXEQWVWVNRRTPJMGIPCQQGXIEPGABMALORGSPJQZQWRXYWVMNVYTNPOBQYNBH
EMZTYIBVBURWXEQWVWVNRRTPJMGIPCQQGXIEPGABMALORGSPJQZQWRXYWVMNVYTNPOBQYNBH
TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
72
72
cipher_museum
2.0
public
null
null
affine-v3-0093
DL OVSK AOLZL AYBAOZ AV IL ZLSM LCPKLUA AOHA HSS TLU HYL JYLHALK LXBHS AOHA AOLF HYL LUKVDLK IF AOLPY JYLHAVY DPAO JLYAHPU BUHSPLUHISL YPNOAZ AOHA HTVUN AOLZL HYL SPML SPILYAF HUK AOL WBYZBPA VM OHWWPULZZ
DL OVSK AOLZL AYBAOZ AV IL ZLSM LCPKLUA AOHA HSS TLU HYL JYLHALK LXBHS AOHA AOLF HYL LUKVDLK IF AOLPY JYLHAVY DPAO JLYAHPU BUHSPLUHISL YPNOAZ AOHA HTVUN AOLZL HYL SPML SPILYAF HUK AOL WBYZBPA VM OHWWPULZZ
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
affine
affine
substitution
{ "a": 1, "b": 7 }
beginner
en
169
204
cipher_museum
2.0
public
null
null
adfgvx-v3-0105
ADFFAFVAFFADGGFAXADFVFFDAFGDAGGXAAGX
ADFFAFVAFFADGGFAXADFVFFDAFGDAGGXAAGX
THE ORACLE HAS SPOKEN
adfgvx
adfgvx
fractionation
{ "polybius": "LIBERTY", "columnar": "FREEDOM" }
advanced
en
36
36
cipher_museum
2.0
public
null
null
four-square-v2-0311
DSVIKNGBOQALGMQBQDFLDDBNCSUKINLTVUBQALAOHDDSGNFTELKUFSIRBKSUUHEURNRLIMLTQTRVFX
DSVIKNGBOQALGMQBQDFLDDBNCSUKINLTVUBQALAOHDDSGNFTELKUFSIRBKSUUHEURNRLIMLTQTRVFX
NAVAL UNITS IN POSITION OFF THE COAST AWAITING SIGNAL TO COMMENCE SHORE BOMBARDMENT AT DAWN
four_square
four_square
polygraphic
{ "key1": "TRIUMPH", "key2": "JUSTICE" }
advanced
en
78
78
cipher_museum
2.0
public
null
null
autokey-222
OLQTNAIIYEAMOJTWLNZSVAMRVOHLMEYFNFKEIDUHTKQMFCBVUFKWANVAVFEAUDIJ
OLQTNAIIYEAMOJTWLNZSVAMRVOHLMEYFNFKEIDUHTKQMFCBVUFKWANVAVFEAUDIJ
CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "MUSEUM" }
intermediate
en
64
64
cipher_museum
0.2
public
null
null
stager-route-v2-0442
TRNANAAYNENEDRUWHNODSXIWOEISTTATNNXXGUURHINATNNIXXNDTALTHLNOEAXXLRTDTELHLHSLXXWTIEIO
TRNANAAYNENEDRUWHNODSXIWOEISTTATNNXXGUURHINATNNIXXNDTALTHLNOEAXXLRTDTELHLHSLXXWTIEIO
TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS
stager_route
stager_route
transposition
{ "type": "integer", "value": 12 }
expert
en
84
84
cipher_museum
2.0
public
null
null
m209-v3-0295
MVZAQXXPETBCWXNZWDZCPDLMLPRPSWEERQJQBYNPYMRLKUCRZMZMKVSYLSBTURYVINYZTINCLYDTGDSZ
MVZAQXXPETBCWXNZWDZCPDLMLPRPSWEERQJQBYNPYMRLKUCRZMZMKVSYLSBTURYVINYZTINCLYDTGDSZ
THE ENIGMA MACHINE HAD AN ASTRONOMICAL NUMBER OF POSSIBLE SETTINGS MAKING IT SEEM UNBREAKABLE
m209
m209
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
80
80
cipher_museum
2.0
public
null
null
joseon-yeokhak-v3-0342
LSPSLAGFOALZGMLJWHJWKWFLSLAGF
LSPSLAGFOALZGMLJWHJWKWFLSLAGF
TAXATION WITHOUT REPRESENTATION
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "DYNASTY" }
beginner
en
29
29
cipher_museum
2.0
public
null
null
kryptos-v3-0082
INKWSBFQGXFHWSHDJJEOHASBFLMNCFZRHPJPDUIRQPQSMPCYMIMRQDUNKISKANUZGFDPKWCELKBUJBTZBNQPL
INKWSBFQGXFHWSHDJJEOHASBFLMNCFZRHPJPDUIRQPQSMPCYMIMRQDUNKISKANUZGFDPKWCELKBUJBTZBNQPL
CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "SHADOW" }
advanced
en
85
85
cipher_museum
2.0
public
null
null
gronsfeld-v2-0005
DBWBMSZBEWBODFT
DBWBMSZBEWBODFT
CAVALRY ADVANCES
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "11111" }
intermediate
en
15
15
cipher_museum
2.0
public
null
null
typex-v2-0185
IZGLMMINCCQQNJRATIVIRWNIFETTSKFOTYZOHYUZRPRPZBMWAGZTKRMRQJQYKLVYJKMGUDQJ
IZGLMMINCCQQNJRATIVIRWNIFETTSKFOTYZOHYUZRPRPZBMWAGZTKRMRQJQYKLVYJKMGUDQJ
WE SHALL FIGHT ON THE BEACHES AND WE SHALL FIGHT ON THE LANDING GROUNDS AND IN THE FIELDS
typex
typex
machine
{ "type": "keyword", "value": "BRITAIN" }
expert
en
72
72
cipher_museum
2.0
public
null
null
atbash-v2-0111
GSV ZIG LU DZI RH LU ERGZO RNKLIGZMXV GL GSV HGZGV RG RH Z NZGGVI LU ORUV ZMW WVZGS Z ILZW VRGSVI GL HZUVGB LI GL IFRM SVMXV RG RH Z HFYQVXG LU RMJFRIB DSRXS XZM LM ML ZXXLFMG YV MVTOVXGVW
GSV ZIG LU DZI RH LU ERGZO RNKLIGZMXV GL GSV HGZGV RG RH Z NZGGVI LU ORUV ZMW WVZGS Z ILZW VRGSVI GL HZUVGB LI GL IFRM SVMXV RG RH Z HFYQVXG LU RMJFRIB DSRXS XZM LM ML ZXXLFMG YV MVTOVXGVW
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
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
en
148
188
cipher_museum
2.0
public
null
null
zimmermann-v2-0025
99999 90019 90017 90020 90018 90019 99998 00019 99999 90021 90004 90017 90008 90005 90024 99998
99999 90019 90017 90020 90018 90019 99998 00019 99999 90021 90004 90017 90008 90005 90024 99998
TRUST BUT VERIFY
zimmermann
zimmermann
codebook
{ "type": "none", "value": null }
expert
en
80
95
cipher_museum
2.0
public
null
null
sigaba-v2-0014
SAFVUXKIDPWRPJ
SAFVUXKIDPWRPJ
PRESS THE ATTACK
sigaba
sigaba
machine
{ "type": "seed", "value": "ECMMARK" }
expert
en
14
14
cipher_museum
2.0
public
null
null
solitaire-v3-0259
OJOKTFTWQRJUMVMVONHZUQOMFQIEASFGRUVEVYOSASJZBWFNHXHCMPTHCFXQTNCFHFYBLSCS
OJOKTFTWQRJUMVMVONHZUQOMFQIEASFGRUVEVYOSASJZBWFNHXHCMPTHCFXQTNCFHFYBLSCS
TWO ROADS DIVERGED IN A YELLOW WOOD AND SORRY I COULD NOT TRAVEL BOTH AND BE ONE TRAVELER
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
72
72
cipher_museum
2.0
public
null
null
vigenere-v3-0775
TBJWRMPFBIYEBTPZTECEWLKLRFPJPLHIUMFLBBWZGEWMNEEBLAWTWVLQTWOSWTDZZUYEXKFAUFVBLHIOXFYYHQGI
TBJWRMPFBIYEBTPZTECEWLKLRFPJPLHIUMFLBBWZGEWMNEEBLAWTWVLQTWOSWTDZZUYEXKFAUFVBLHIOXFYYHQGI
IT IS A TRUTH UNIVERSALLY ACKNOWLEDGED THAT A SINGLE MAN IN POSSESSION OF A FORTUNE MUST BE IN WANT OF A WIFE
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
88
88
cipher_museum
2.0
public
null
null
polybius-v3-0090
45 31 44 42 11 24 33 44 15 31 31 24 22 15 33 13 15 21 42 34 32 12 31 15 44 13 23 31 15 54 35 11 42 25 22 11 51 15 44 23 15 11 31 31 24 15 43 11 33 15 33 34 42 32 34 45 43 11 14 51 11 33 44 11 22 15 24 33 52 34 42 31 14 52 11 42 44 52 34 12 54 42 15 51 15 11 31 24 33 22 22 15 42 32 11 33 24 33 44 15 33 44 24 34 33 43 12...
45 31 44 42 11 24 33 44 15 31 31 24 22 15 33 13 15 21 42 34 32 12 31 15 44 13 23 31 15 54 35 11 42 25 22 11 51 15 44 23 15 11 31 31 24 15 43 11 33 15 33 34 42 32 34 45 43 11 14 51 11 33 44 11 22 15 24 33 52 34 42 31 14 52 11 42 44 52 34 12 54 42 15 51 15 11 31 24 33 22 22 15 42 32 11 33 24 33 44 15 33 44 24 34 33 43 12...
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
polybius
polybius
substitution
{ "type": "none", "value": null }
beginner
en
330
494
cipher_museum
2.0
public
null
null
rail-fence-fr-016
IETIEEARPUAXNATAEDSATMSLSASDFIEERUEFNSVCEFNOE
IETIEEARPUAXNATAEDSATMSLSASDFIEERUEFNSVCEFNOE
IL EST AISE DE FAIRE PEUR AUX ENFANTS AVEC DES FANTOMES
rail_fence
rail_fence
transposition
{ "type": "shift", "value": 2 }
intermediate
fr
45
45
cipher_museum
0.2
public
null
null
typex-v3-0170
BZWGYGIHDVYLCJHHBUUMEVRNMNVVXEFMBDVWHMMTPQMQHDSZQNPCPGSQWHCAPLXUMTBCDGFXLT
BZWGYGIHDVYLCJHHBUUMEVRNMNVVXEFMBDVWHMMTPQMQHDSZQNPCPGSQWHCAPLXUMTBCDGFXLT
GENERAL SHERMAN MARCHED TO THE SEA THROUGH GEORGIA CUTTING A SIXTY MILE WIDE PATH OF RUIN
typex
typex
machine
{ "type": "keyword", "value": "BRITAIN" }
expert
en
74
74
cipher_museum
2.0
public
null
null
sigaba-195
XVBPSVNHFIFAWZE
XVBPSVNHFIFAWZE
OPERATION BEGINS
sigaba
sigaba
machine
{ "type": "seed", "value": "MUSEUM" }
expert
en
15
15
cipher_museum
0.2
public
null
null
fialka-v2-0235
BBKTGAUNMOKICHLVUNYFTDCJUDCGRENALGCYZDMKHKEBFEVDYLKFPZISFWJITLQQVVMPGIOOCLYHHUGMNPBZKEMUIJVQNOCCNMNNIQOIWDNTYXMLJJZFRCZJWQLZYNVXMOMOQJFVKTYOUFUCJWYNBZSUMEFXGVESNDYS
BBKTGAUNMOKICHLVUNYFTDCJUDCGRENALGCYZDMKHKEBFEVDYLKFPZISFWJITLQQVVMPGIOOCLYHHUGMNPBZKEMUIJVQNOCCNMNNIQOIWDNTYXMLJJZFRCZJWQLZYNVXMOMOQJFVKTYOUFUCJWYNBZSUMEFXGVESNDYS
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
fialka
fialka
machine
{ "type": "seed", "value": "KREMLIN" }
expert
en
164
164
cipher_museum
2.0
public
null
null
cda-0017014
... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . .....
... ..... .... ..... . .. ... . .. .... . ... .. .... ... ... .. . .... .. . . .... ... .... .... .... .. .... ..... . ... .... .... .... ..... .... .. . ..... . .... . ..... .... ... . ..... .... .. ..... . . ..... .... ... . ... . . .... .. . ..... .. . .... ..... ... . . .... . .....
PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN
tap_code
tap_code
null
{}
medium
en
41
41
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.
one-time-pad-v2-0164
JDICHPXQGBYKKJVONBOHPJVMYZEPARGRBMAPKWWMSLUSPCLYIJASHAIEIYMBIGEKEDYARVWVXVZSF
JDICHPXQGBYKKJVONBOHPJVMYZEPARGRBMAPKWWMSLUSPCLYIJASHAIEIYMBIGEKEDYARVWVXVZSF
THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "QWERTY (repeating)" }
expert
en
77
77
cipher_museum
2.0
public
null
null
enigma-v3-0767
YIMUIGHJZKDANXQMQNWFC
YIMUIGHJZKDANXQMQNWFC
THE EXPERIMENT CONFIRMS
enigma
enigma
machine
{ "type": "rotor_start", "value": "VWX" }
expert
en
21
21
cipher_museum
2.0
public
null
null
cda-0009917
GUSIV URASE RQVCV REHFN FOESC NOGVA TXSLJ BEROG POFUS ANBQN FPLER ISEFW ATGUR OYCVO PSGNA GEBCL ZROFH ESFHA PNEGO WAGLV AOQVF GEWNH GVBA
GUSIV URASE RQVCV REHFN FOESC NOGVA TXSLJ BEROG POFUS ANBQN FPLER ISEFW ATGUR OYCVO PSGNA GEBCL ZROFH ESFHA PNEGO WAGLV AOQVF GEWNH GVBA
THE VIGENERE CIPHER USES A REPEATING KEYWORD ATBASH ENCODES BY REVERSING THE ALPHABET ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
porta
porta
null
{ "key": "CIPHER" }
hard
en
114
114
synthetic_educational
null
null
[]
cda-0016942
-- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... -.-- / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.-- / ... ..- -... ... - .. - ..- - .. --- -. / -.-. .. .--. .... . .-. ... / -- .- .--. / . .- -.-. .... / .-.. . - - . .-. / - --- / .- / -.. .. ..-. .....
-- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... -.-- / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.-- / ... ..- -... ... - .. - ..- - .. --- -. / -.-. .. .--. .... . .-. ... / -- .- .--. / . .- -.-. .... / .-.. . - - . .-. / - --- / .- / -.. .. ..-. .....
MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF
morse_code
morse_code
null
{}
hard
en
193
193
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
diana-v2-0418
YUKLKBFLRUQGQGGAKSPFEUQX
YUKLKBFLRUQGQGGAKSPFEUQX
NORTH STAR HOLDS FIRM COURSE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
24
24
cipher_museum
2.0
public
null
null
atbash-v3-0104
GSV EVMLMZ KILQVXG DSRXS IZM UILN MRMVGVVM ULIGB GSIVV GL MRMVGVVM VRTSGB WVXIBKGVW GSLFHZMWH LU HLERVG RMGVOORTVMXV NVHHZTVH IVEVZORMT GSV RWVMGRGRVH LU MFNVILFH ZTVMGH DSL SZW KVMVGIZGVW GSV FH TLEVIMNVMG
GSV EVMLMZ KILQVXG DSRXS IZM UILN MRMVGVVM ULIGB GSIVV GL MRMVGVVM VRTSGB WVXIBKGVW GSLFHZMWH LU HLERVG RMGVOORTVMXV NVHHZTVH IVEVZORMT GSV RWVMGRGRVH LU MFNVILFH ZTVMGH DSL SZW KVMVGIZGVW GSV FH TLEVIMNVMG
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
atbash
atbash
substitution
{ "type": "none", "value": null }
beginner
en
177
206
cipher_museum
2.0
public
null
null
affine-v3-0785
RY WPVWPWRK CPD LMKYPD RNM VZYPRWMZ YV NAGCP OPYSXMDEM UCXXI RY MCUN EMPMZCRWYP CPMS
RY WPVWPWRK CPD LMKYPD RNM VZYPRWMZ YV NAGCP OPYSXMDEM UCXXI RY MCUN EMPMZCRWYP CPMS
TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW
affine
affine
substitution
{ "a": 9, "b": 2 }
beginner
en
71
84
cipher_museum
2.0
public
null
null
two-square-v2-0132
ABORTAQFVKTHYOYX
ABORTAQFVKTHYOYX
ABORT AND WITHDRAW
two_square
two_square
polygraphic
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
running-key-v2-0054
LZXZETSMCXMOYK
LZXZETSMCXMOYK
PRESS THE ATTACK
running_key
running_key
polyalphabetic
{ "type": "text", "value": "Lincoln Second Inaugural" }
intermediate
en
14
14
cipher_museum
2.0
public
null
null
solitaire-v2-0291
OBRIJIEEJJMQGAPSTDZCHFFC
OBRIJIEEJJMQGAPSTDZCHFFC
TORPEDO AWAY ALL HANDS BRACE
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
24
24
cipher_museum
2.0
public
null
null
nomenclator-v2-0184
14 05 22 05 18 64 60 06 09 05 12 04 62 08 21 13 01 14 03 15 14 06 12 09 03 20 23 01 19 19 15 13 21 03 08 15 23 05 04 02 25 19 15 13 01 14 25 63 19 15 06 05 23 02 18 01 22 05 19 15 21 12 19
14 05 22 05 18 64 60 06 09 05 12 04 62 08 21 13 01 14 03 15 14 06 12 09 03 20 23 01 19 19 15 13 21 03 08 15 23 05 04 02 25 19 15 13 01 14 25 63 19 15 06 05 23 02 18 01 22 05 19 15 21 12 19
NEVER IN THE FIELD OF HUMAN CONFLICT WAS SO MUCH OWED BY SO MANY TO SO FEW BRAVE SOULS
nomenclator
nomenclator
nomenclator
{ "type": "seed", "value": "PALACE" }
expert
en
126
188
cipher_museum
2.0
public
null
null
cda-0006113
GURO VSVQ PVCU REPB ZOVA RFNC BYLO VHFF DHNE RJVG UGEN AFCB FVGV BAPN RFNE FUVS GRQG URNY CUNO RGOL GUER RCBF VGVB AFSN VYPY BFRQ VFNC BFGH ERAB GNFY BTNA
GURO VSVQ PVCU REPB ZOVA RFNC BYLO VHFF DHNE RJVG UGEN AFCB FVGV BAPN RFNE FUVS GRQG URNY CUNO RGOL GUER RCBF VGVB AFSN VYPY BFRQ VFNC BFGH ERAB GNFY BTNA
THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS FAIL CLOSED IS A POSTURE NOT A SLOGAN
rot13
rot13
null
{ "shift": 13 }
hard
en
124
124
synthetic_educational
null
null
[ "brute_force_26", "self_inverse_check" ]
ROT-13 is Caesar with shift 13 — it is its own inverse.
beaufort-v3-0390
OTNYKUOEJDMOJGTEZBIQEOIYNKXPAAEVKMECMAPOBJTNVTVNDNHFXKBJUUMBMQYTVRZKMESGQQGS
OTNYKUOEJDMOJGTEZBIQEOIYNKXPAAEVKMECMAPOBJTNVTVNDNHFXKBJUUMBMQYTVRZKMESGQQGS
THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC
beaufort
beaufort
polyalphabetic
{ "type": "keyword", "value": "HARBOUR" }
intermediate
en
76
76
cipher_museum
2.0
public
null
null
cda-0020132
CHEDY DALOR OROTA IINOT EDYDA INYOK EEDYS HAIIN QOKEE DYLKA IINDA INYQO KEEDY RCHEO LOKAL SHALO KALOK EEDYO XEDOK AINOT AIINO KEEDY SHARA LOKEE DYYKC HEOLS HOROT EDYDA RALDA LYTAI IN
CHEDY DALOR OROTA IINOT EDYDA INYOK EEDYS HAIIN QOKEE DYLKA IINDA INYQO KEEDY RCHEO LOKAL SHALO KALOK EEDYO XEDOK AINOT AIINO KEEDY SHARA LOKEE DYYKC HEOLS HOROT EDYDA RALDA LYTAI IN
THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY
voynich_render
voynich_render
null
{}
hard
en
152
152
synthetic_educational
null
null
[ "statistical_analysis", "unsolved" ]
Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output.
cda-0010034
SLRS NOGH EINE FAAS PCTT IEUE TTDY TMRS LTHO RFLS FNTD RALL OYYS SEPC DSEE SIGA PCTT USDC AYFA ISNM CSSR OTRR KIAU THTH ARIM SREE ESIT NNAS WRCE EIRL HEEL YYBE IUNS NUFC IRLO AMTB WEHR CHCR EMED ILCK EWVE OUEK CEAS TEM
SLRS NOGH EINE FAAS PCTT IEUE TTDY TMRS LTHO RFLS FNTD RALL OYYS SEPC DSEE SIGA PCTT USDC AYFA ISNM CSSR OTRR KIAU THTH ARIM SREE ESIT NNAS WRCE EIRL HEEL YYBE IUNS NUFC IRLO AMTB WEHR CHCR EMED ILCK EWVE OUEK CEAS TEM
CLASSICAL CIPHERS TEACH WHY MODERN SECURITY MATTERS PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS HONESTLY
double_transposition
double_transposition
null
{ "key1": "LIBERTY", "key2": "FREEDOM" }
hard
en
175
175
synthetic_educational
null
null
[]
kl7-v2-0127
CNRRHMBCPGXS
CNRRHMBCPGXS
THE DIE IS CAST
kl7
kl7
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
12
12
cipher_museum
2.0
public
null
null
kryptos-196
IKVXFFXBINFDQAHAIA
IKVXFFXBINFDQAHAIA
SEND REINFORCEMENTS
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
advanced
en
18
18
cipher_museum
0.2
public
null
null
diana-v3-0339
SBXCDHJLQJPDLLSQINXP
SBXCDHJLQJPDLLSQINXP
THE COMPASS POINTS TRUE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
cda-0016000
⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a23⟩ ⟨a23⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a13⟩ ⟨a01⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a23⟩ ⟨w28⟩ ⟨a07⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a23⟩ ⟨w...
⟨w08⟩ ⟨a07⟩ ⟨w08⟩ ⟨a23⟩ ⟨a23⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w14⟩ ⟨w32⟩ ⟨a13⟩ ⟨a29⟩ ⟨w20⟩ ⟨a19⟩ ⟨w08⟩ ⟨a13⟩ ⟨a13⟩ ⟨a01⟩ ⟨w32⟩ ⟨w20⟩ ⟨w22⟩ ⟨w08⟩ ⟨a01⟩ ⟨w32⟩ ⟨a07⟩ ⟨w20⟩ ⟨w08⟩ ⟨a19⟩ ⟨a23⟩ ⟨w28⟩ ⟨a07⟩ ⟨w14⟩ ⟨a25⟩ ⟨w32⟩ ⟨w10⟩ ⟨a07⟩ ⟨a25⟩ ⟨w10⟩ ⟨w20⟩ ⟨w08⟩ ⟨w14⟩ ⟨a29⟩ ⟨a01⟩ ⟨w20⟩ ⟨a25⟩ ⟨a25⟩ ⟨w20⟩ ⟨a19⟩ ⟨w14⟩ ⟨w08⟩ ⟨a19⟩ ⟨w20⟩ ⟨a23⟩ ⟨w...
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER CAREFULLY
babington
babington
null
{}
medium
en
57
57
synthetic_educational
null
null
[ "nomenclator_frequency", "symbol_mapping" ]
Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot.
confederate-vigenere-v2-0399
CGCJXDYDPDY
CGCJXDYDPDY
KNOW THYSELF
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "STONEWALL" }
intermediate
en
11
11
cipher_museum
2.0
public
null
null
vernam-043
BXGWPDIOJVYANPQGKSQEQXEXTUSJQKCLVDCLXZFDSURFAJUPKWYHQDLEG
BXGWPDIOJVYANPQGKSQEQXEXTUSJQKCLVDCLXZFDSURFAJUPKWYHQDLEG
ELEMENTARY MY DEAR WATSON THE GAME IS AFOOT AND THE CRIMINAL IS CLOSE
vernam
vernam
stream
{ "type": "pad", "value": "XMCKLQPOS (repeating)" }
expert
en
57
57
cipher_museum
0.2
public
null
null
m209-148
ZHEAIDLYJVZCCKY
ZHEAIDLYJVZCCKY
EVACUATE THE BASE
m209
m209
machine
{ "type": "seed", "value": "SECRET" }
expert
en
15
15
cipher_museum
0.2
public
null
null
vic-v2-0143
344869585918886859380488808895
344869585918886859380488808895
KEEP YOUR POWDER DRY
vic
vic
substitution
{ "type": "keyword", "value": "NICKEL" }
advanced
en
30
30
cipher_museum
2.0
public
null
null
kl7-132
VUCADXYYNKSTRURC
VUCADXYYNKSTRURC
CIPHER KEY CHANGED
kl7
kl7
machine
{ "type": "seed", "value": "SECRET" }
expert
en
16
16
cipher_museum
0.2
public
null
null
affine-vf-0017
ZRC SLASGQIGCP OWVXU ZRC UFPWVM
ZRC SLASGQIGCP OWVXU ZRC UFPWVM
THE CLOCKMAKER WINDS THE SPRING
affine
affine
substitution
{ "a": 5, "b": 8 }
beginner
en
27
31
cipher_museum
2.0
public
null
null
typex-v3-0347
ESVKFLWDPVNYH
ESVKFLWDPVNYH
THE APPLE FALLS
typex
typex
machine
{ "type": "keyword", "value": "WINSTON" }
expert
en
13
13
cipher_museum
2.0
public
null
null
cardano-autokey-085
UATPRPGMAYUZOHR
UATPRPGMAYUZOHR
SILENCE IS GOLDEN
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "CIPHER" }
advanced
en
15
15
cipher_museum
0.2
public
null
null
cardano-autokey-v3-0299
QDVFYXBKHPHJKTGFCTXSLWZKKBRTPRKRRHDGFJZOXBKHPHJKAEBAVINKVZZELTVTZALOXBKHPHJKMBLWPQ
QDVFYXBKHPHJKTGFCTXSLWZKKBRTPRKRRHDGFJZOXBKHPHJKAEBAVINKVZZELTVTZALOXBKHPHJKMBLWPQ
ZERO KNOWLEDGE PROOFS ALLOW ONE PARTY TO PROVE KNOWLEDGE WITHOUT REVEALING THE KNOWLEDGE ITSELF
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "ROME" }
advanced
en
82
82
cipher_museum
2.0
public
null
null
confederate-vigenere-v2-0227
UMWAEQUORVFBNSEDCTGZUBQHIEGSFKRQEMUZFSGVQCUJTIGCLVFADIGCVJTKQFYLTPBBEOZPVVJSF
UMWAEQUORVFBNSEDCTGZUBQHIEGSFKRQEMUZFSGVQCUJTIGCLVFADIGCVJTKQFYLTPBBEOZPVVJSF
DEUTSCHLAND UBER ALLES IN DER WELT WENN ES STETS ZU SCHUTZ UND TRUTZE BRÜDERLICH ZUSAMMENHÄLT
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "RICHMOND" }
intermediate
en
77
77
cipher_museum
2.0
public
null
null
caesar-317
QIIX EX XLI SPH SEO
QIIX EX XLI SPH SEO
MEET AT THE OLD OAK
caesar
caesar
substitution
{ "type": "shift", "value": 4 }
beginner
en
15
19
cipher_museum
0.2
public
null
null
fractionated-morse-v3-0320
NFUFUIMNVAVIDUAE
NFUFUIMNVAVIDUAE
THE SENATE DECREES
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
cda-0012877
22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43
22 34 34 14 15 14 45 13 11 44 24 34 33 11 31 44 34 34 31 43 15 53 35 31 11 24 33 44 23 15 24 42 31 24 32 24 44 43
GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS
polybius
polybius
null
{}
medium
en
38
38
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
venona-pad-reuse-v2-0022
MI6IBAPNICMJ7UPR
MI6IBAPNICMJ7UPR
DIVIDE AND CONQUER
venona_pad_reuse
venona_pad_reuse
stream
{ "type": "keyword", "value": "PALACE" }
expert
en
16
16
cipher_museum
2.0
public
null
null
cda-0003506
ATVU SSMJ TJSX ZRSS IJLK IICB THDF PFIU USGJ VATN PTJZ UVCK DBPR UTGP YQZP XUOL XCVP RVLL BDBQ QBOM WPRF XAZJ XDBB GXJZ GGLZ WAQB OMWP RXOU SNIZ DQSG
ATVU SSMJ TJSX ZRSS IJLK IICB THDF PFIU USGJ VATN PTJZ UVCK DBPR UTGP YQZP XUOL XCVP RVLL BDBQ QBOM WPRF XAZJ XDBB GXJZ GGLZ WAQB OMWP RXOU SNIZ DQSG
A STRONG CLAIM NEEDS STRONG EVIDENCE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
trithemius
trithemius
null
{}
hard
en
120
120
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
affine-la-036
U LTOHMNOS OPOE
U LTOHMNOS OPOE
E PLURIBUS UNUM
affine
affine
substitution
{ "type": "keyword", "value": "11,2" }
beginner
la
13
15
cipher_museum
0.2
public
null
null
voynich-render-010
gcd noypohd kx edfkvdqde
gcd noypohd kx edfkvdqde
THE PACKAGE IS DELIVERED
voynich_render
voynich_render
substitution
{ "type": "none", "value": null }
expert
en
21
24
cipher_museum
0.2
public
null
null
vigenere-de-019
RLWMBQUNYPYUOBZICFNLMHYDXCULEQUN
RLWMBQUNYPYUOBZICFNLMHYDXCULEQUN
FREIHEIT GLEICHHEIT BRUDERLICHKEIT
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "MUSEUM" }
intermediate
de
32
32
cipher_museum
0.2
public
null
null
cda-0013846
.... ... .... ..... . .. .... ... .... .... .. .... .... .... .... ..... .... .... .. .... ... .... ... ... . ... .. .... ... ..... .. ... . ..... .... .. .... ... ... .. . . ... ..... . ..... . . . ... .. ... ... . . ..... .... .... .... .... . ..... .... .. .... .... ... .... . . . ...
.... ... .... ..... . .. .... ... .... .... .. .... .... .... .... ..... .... .... .. .... ... .... ... ... . ... .. .... ... ..... .. ... . ..... .... .. .... ... ... .. . . ... ..... . ..... . . . ... .. ... ... . . ..... .... .... .... .... . ..... .... .. .... .... ... .... . . . ...
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER
tap_code
tap_code
null
{}
medium
en
50
50
synthetic_educational
null
null
[ "dot_count_decode", "grid_position_search" ]
Tap code: letters encoded as dot-groups representing row and column in 5×5 grid.
cda-0018416
44 42 11 33 43 35 34 43 24 44 24 34 33 13 24 35 23 15 42 43 42 15 11 42 42 11 33 22 15 31 15 44 44 15 42 43 52 24 44 23 34 45 44 43 45 12 43 44 24 44 45 44 24 34 33 11 44 12 11 43 23 15 33 13 34 14 15 43 12 54 42 15 51 15 42 43 24 33 22 44 23 15 11 31 35 23 11 12 15 44
44 42 11 33 43 35 34 43 24 44 24 34 33 13 24 35 23 15 42 43 42 15 11 42 42 11 33 22 15 31 15 44 44 15 42 43 52 24 44 23 34 45 44 43 45 12 43 44 24 44 45 44 24 34 33 11 44 12 11 43 23 15 33 13 34 14 15 43 12 54 42 15 51 15 42 43 24 33 22 44 23 15 11 31 35 23 11 12 15 44
TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION ATBASH ENCODES BY REVERSING THE ALPHABET
polybius
polybius
null
{}
hard
en
90
90
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
stager-route-v2-0447
ONHDYALOIOWIINCGLEVNRETEAEHEUTIKRVXXOMAPDPORONALXXUNDNENAADWYMXXEAEERMIYRAQOXXFUREWD
ONHDYALOIOWIINCGLEVNRETEAEHEUTIKRVXXOMAPDPORONALXXUNDNENAADWYMXXEAEERMIYRAQOXXFUREWD
ONCE UPON A MIDNIGHT DREARY WHILE I PONDERED WEAK AND WEARY OVER MANY A QUAINT VOLUME OF LORE
stager_route
stager_route
transposition
{ "type": "integer", "value": 12 }
expert
en
84
84
cipher_museum
2.0
public
null
null
purple-v2-0162
LWMTCDMWXMOXWQ
LWMTCDMWXMOXWQ
LIBERTY OR DEATH
purple
purple
machine
{ "type": "seed", "value": "YAMAMOTO" }
expert
en
14
14
cipher_museum
2.0
public
null
null
cda-0017769
.... .. .-.. .-.. / -.-. .. .--. .... . .-. / ..- ... . ... / .-.. .. -. . .- .-. / .- .-.. --. . -... .-. .- / - --- / . -. -.-. .-. -.-- .--. - / -... .-.. --- -.-. -.- ... / --- ..-. / .-.. . - - . .-. ... / -- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... ...
.... .. .-.. .-.. / -.-. .. .--. .... . .-. / ..- ... . ... / .-.. .. -. . .- .-. / .- .-.. --. . -... .-. .- / - --- / . -. -.-. .-. -.-- .--. - / -... .-.. --- -.-. -.- ... / --- ..-. / .-.. . - - . .-. ... / -- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... ...
HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
morse_code
morse_code
null
{}
hard
en
139
139
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
double-transposition-v2-0194
YSAROANROPEEKEREHSRRSSTNBRALHAADTEDFGNUMGECLDIESAHHEETETEEBSOUEEAEPSLEAMLHSD
YSAROANROPEEKEREHSRRSSTNBRALHAADTEDFGNUMGECLDIESAHHEETETEEBSOUEEAEPSLEAMLHSD
BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US
double_transposition
double_transposition
transposition
{ "key1": "LIBERTY", "key2": "FREEDOM" }
advanced
en
76
76
cipher_museum
2.0
public
null
null
cda-0006106
SAWQNQRG WZEQYM GDQEZB XG LUSLUH KLHAH SCHQLQXG TKWN ITKSAV CM Y VQGRKHG RKR E GZQSKR JWTAJWES ALIQVGB NGLFGNG KM JKWHS QT XKMJAHS ZHWS KXA FW ZQPA YZEL RKHCRS JNKAA UXWSYE CCLR INQJM YXB FDA XWSXG SYIXQXA
SAWQNQRG WZEQYM GDQEZB XG LUSLUH KLHAH SCHQLQXG TKWN ITKSAV CM Y VQGRKHG RKR E GZQSKR JWTAJWES ALIQVGB NGLFGNG KM JKWHS QT XKMJAHS ZHWS KXA FW ZQPA YZEL RKHCRS JNKAA UXWSYE CCLR INQJM YXB FDA XWSXG SYIXQXA
SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY FAIL CLOSED IS A POSTURE NOT A SLOGAN POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
beaufort
beaufort
null
{ "key": "KEY" }
hard
en
170
170
synthetic_educational
null
null
[ "kasiski_examination", "friedman_test", "index_of_coincidence" ]
Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption).
monoalphabetic-vi-0029
QEFMDPE DL TBE JMQH CJWCYS CLH CACDL D SCY QEFMDPE JET YMUQ AELTJELESS IE EVDHELT TM CJJ NEMNJE
QEFMDPE DL TBE JMQH CJWCYS CLH CACDL D SCY QEFMDPE JET YMUQ AELTJELESS IE EVDHELT TM CJJ NEMNJE
REJOICE IN THE LORD ALWAYS AND AGAIN I SAY REJOICE LET YOUR GENTLENESS BE EVIDENT TO ALL PEOPLE
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "CIPHER" }
beginner
en
78
95
cipher_museum
2.0
public
null
null
cda-0020760
65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 11 50 25 80 68 65 36 68 29 11 66 80 50 25 80 68 65 36 76 80 82 72 59 82 29 52 50 82 61 82 73 65 69 61 82 61 50 77 65 57 82 52 50 65 36 82 80 61 61 82 52 59 80 50 66 43...
65 69 57 43 20 50 59 61 82 29 52 69 11 82 11 57 82 66 66 82 80 61 68 61 65 68 50 80 61 69 76 29 59 77 20 82 80 61 76 80 69 77 69 29 82 66 69 76 50 95 82 11 50 25 80 68 65 36 68 29 11 66 80 50 25 80 68 65 36 76 80 82 72 59 82 29 52 50 82 61 82 73 65 69 61 82 61 50 77 65 57 82 52 50 65 36 82 80 61 61 82 52 59 80 50 66 43...
POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS
wallis_cipher
wallis_cipher
null
{}
hard
en
196
196
synthetic_educational
null
null
[ "number_substitution_decode", "frequency_analysis" ]
Wallis cipher: each letter mapped to a unique two-digit number from a fixed table.
null-cipher-v3-0025
call her about right they this her each uaei now know name out will new
call her about right they this her each uaei now know name out will new
CHART THE UNKNOWN
null_cipher
null_cipher
steganography
{ "type": "position", "value": "first" }
advanced
en
57
71
cipher_museum
2.0
public
null
null
cda-0009760
OIZEFKLUPAOCIOXTQFXGBHJFWKOCQLODYSWSZYZRGKHRXF
OIZEFKLUPAOCIOXTQFXGBHJFWKOCQLODYSWSZYZRGKHRXF
HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS
autokey
autokey
null
{ "primer": "HONEST" }
medium
en
46
46
synthetic_educational
null
null
[]
vic-v3-0199
43878134928758880739174
43878134928758880739174
RENDER UNTO CAESAR
vic
vic
substitution
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
23
23
cipher_museum
2.0
public
null
null
bazeries-v2-0870
SAPHIPTAPLBYNPMIXSSCYSQHBXLAPHTXTILSQIYIFLINLPTHQIAHSMBTNPAOHQATLNHSNBMNXPWLAPSTTJFFMLTMHIFTAMSNSFMMTRPBUHBAXHSSPMBTPTLHFTEIBFOSHHBSPPMQTAPBHMNTPSPMMTFSATEFTLYT
SAPHIPTAPLBYNPMIXSSCYSQHBXLAPHTXTILSQIYIFLINLPTHQIAHSMBTNPAOHQATLNHSNBMNXPWLAPSTTJFFMLTMHIFTAMSNSFMMTRPBUHBAXHSSPMBTPTLHFTEIBFOSHHBSPPMQTAPBHMNTPSPMMTFSATEFTLYT
THAT ON THE FIRST DAY OF JANUARY IN THE YEAR OF OUR LORD ONE THOUSAND EIGHT HUNDRED AND SIXTY THREE ALL PERSONS HELD AS SLAVES WITHIN ANY STATE IN REBELLION AGAINST THE UNITED STATES SHALL BE FREE
bazeries
bazeries
transposition
{ "type": "integer", "value": 71 }
advanced
en
160
160
cipher_museum
2.0
public
null
null
red-type-a-v3-0260
PYSYSPIHILBTIELLYPZAQSIORLANVJIHPAZEQSIUWRCYSLYSXVAZEYNHGOWIIWNAIFYDIGUJO
PYSYSPIHILBTIELLYPZAQSIORLANVJIHPAZEQSIUWRCYSLYSXVAZEYNHGOWIIWNAIFYDIGUJO
DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE
red_type_a
red_type_a
machine
{ "type": "keyword", "value": "TOKYO" }
advanced
en
73
73
cipher_museum
2.0
public
null
null
sigaba-v3-0120
BHOMLUXXMOOOMDMFD
BHOMLUXXMOOOMDMFD
ARCHERS TO THE WALLS
sigaba
sigaba
machine
{ "type": "seed", "value": "ARMY" }
expert
en
17
17
cipher_museum
2.0
public
null
null
cda-0018521
THEVI GENER ECIPH ERUSE SAREX EATIX GKEYW ORDDD
THEVI GENER ECIPH ERUSE SAREX EATIX GKEYW ORDDD
THE VIGENERE CIPHER USES A REPEATING KEYWORD
commercial_code
commercial_code
null
{}
medium
en
40
40
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
caesar-v2-1720
QELPB TEL ZXKKLQ OBJBJYBO QEB MXPQ XOB ZLKABJKBA QL OBMBXQ FQ XP MEFILPLMEBO PXKQXVXKX LYPBOSBA
QELPB TEL ZXKKLQ OBJBJYBO QEB MXPQ XOB ZLKABJKBA QL OBMBXQ FQ XP MEFILPLMEBO PXKQXVXKX LYPBOSBA
THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED
caesar
caesar
substitution
{ "type": "shift", "value": 23 }
beginner
en
81
95
cipher_museum
2.0
public
null
null
scytale-v3-0056
GESNNENSEPPDERTONEINPSHNIRRIEPONUCANRIMOSETECRATINITEASESTOYNTEDOINNTIDXNNAIPOIX
GESNNENSEPPDERTONEINPSHNIRRIEPONUCANRIMOSETECRATINITEASESTOYNTEDOINNTIDXNNAIPOIX
GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED
scytale
scytale
transposition
{ "type": "integer", "value": 8 }
intermediate
en
80
80
cipher_museum
2.0
public
null
null
cda-0007001
AGSIW PFCVC TMYWV YAZNN KLIPC JNVNA CPZXC MWBLY EUIWY LYNAL JPRWC GLJZB AZNYW EPEYF CUJPG VZYX
AGSIW PFCVC TMYWV YAZNN KLIPC JNVNA CPZXC MWBLY EUIWY LYNAL JPRWC GLJZB AZNYW EPEYF CUJPG VZYX
PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE VIGENERE CIPHER USES A REPEATING KEYWORD
beaufort
beaufort
null
{ "key": "PATTERN" }
medium
en
79
79
synthetic_educational
null
null
[]
rot13-045
V UNIR ABG LRG ORTHA GB SVTUG FNVQ GUR PNCGNVA GB GUR PERJ
V UNIR ABG LRG ORTHA GB SVTUG FNVQ GUR PNCGNVA GB GUR PERJ
I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW
rot13
rot13
substitution
{ "type": "none", "value": null }
beginner
en
46
58
cipher_museum
0.2
public
null
null