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2.11k
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2.11k
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stringlengths
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282
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81 values
cipher
stringclasses
81 values
cipher_family
stringclasses
13 values
key
unknown
difficulty
stringclasses
7 values
language
stringclasses
8 values
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int64
6
1.09k
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int64
6
1.28k
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2 values
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educational_note
stringclasses
32 values
cda-0014040
6342 02557 01615 03517 0327 5967 2905 06000 3482 2847 1573 07536 0315 04088 02868 4398 00364 6362 2875 4751 4471 1921 2870 04476 01275 6056 5729 1615 5084 01642 00320 6377 01653 1272 06287 05694 2877 02235 5659 00317 04087 05990 2852 4424 00996 02868 05100 02554 01649 5738 6303 1594 07536 6351 06013 06640 0644 6003 631...
6342 02557 01615 03517 0327 5967 2905 06000 3482 2847 1573 07536 0315 04088 02868 4398 00364 6362 2875 4751 4471 1921 2870 04476 01275 6056 5729 1615 5084 01642 00320 6377 01653 1272 06287 05694 2877 02235 5659 00317 04087 05990 2852 4424 00996 02868 05100 02554 01649 5738 6303 1594 07536 6351 06013 06640 0644 6003 631...
THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
zimmermann
zimmermann
null
{}
hard
en
147
147
synthetic_educational
null
null
[ "codebook_frequency", "number_group_analysis" ]
Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher.
columnar-transposition-es-016
EUNBNRLAGYSNDRPAEEAAI
EUNBNRLAGYSNDRPAEEAAI
ESPANA UNA GRANDE Y LIBRE
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "CIPHER" }
intermediate
es
21
21
cipher_museum
0.2
public
null
null
diana-v3-0443
MKACPCXFZMPPGZMZLNJK
MKACPCXFZMPPGZMZLNJK
THE COMPASS POINTS TRUE
diana
diana
polyalphabetic
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
monoalphabetic-vf-0051
UAKQPJOTON XO WJ WJ BQ AOKNQBGX KP QJ QAO GJNW KIW IJQ SIQJ HOI RJN ABP DGJNX BP DNOKQ
UAKQPJOTON XO WJ WJ BQ AOKNQBGX KP QJ QAO GJNW KIW IJQ SIQJ HOI RJN ABP DGJNX BP DNOKQ
WHATSOEVER YE DO DO IT HEARTILY AS TO THE LORD AND NOT UNTO MEN FOR HIS GLORY IS GREAT
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "KEYWORD" }
beginner
en
68
86
cipher_museum
2.0
public
null
null
cda-0003763
CECOPDOAMGAMSISTTAIKRLDAAELESAXYURNDHMENTBHIISGUEESMKARBETSERXCCTNDEITORAINATAHOWNHLURWSSENLXBKDCSTMPNENIRSMADBEAOSVIOXOCBMXNTGSLTUEEOANSEPNAAIRCRRGEUTNIIXOTIBIAFRNFTBMANLONNOIRTEETCELCY
CECOPDOAMGAMSISTTAIKRLDAAELESAXYURNDHMENTBHIISGUEESMKARBETSERXCCTNDEITORAINATAHOWNHLURWSSENLXBKDCSTMPNENIRSMADBEAOSVIOXOCBMXNTGSLTUEEOANSEPNAAIRCRRGEUTNIIXOTIBIAFRNFTBMANLONNOIRTEETCELCY
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER
double_transposition
double_transposition
null
{ "key1": "LIBERTY", "key2": "SIGNAL" }
hard
en
186
186
synthetic_educational
null
null
[ "key_length_search", "anagram_recovery" ]
Double columnar transposition: apply columnar twice for stronger security.
hill-v2-0428
EICJDBQZBHYMBIGIXOFBJGURSEQICUVJYSWTIOFWOADMMREQLXRCGWUQYMBIGIXOFRRCGYFWOA
EICJDBQZBHYMBIGIXOFBJGURSEQICUVJYSWTIOFWOADMMREQLXRCGWUQYMBIGIXOFRRCGYFWOA
GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW
hill
hill
polygraphic
{ "a": 9, "b": 2, "c": 7, "d": 5 }
advanced
en
74
74
cipher_museum
2.0
public
null
null
monoalphabetic-v3-0713
OPJ IKSOYMQBLK OIGBIP LK QAI HJQAIHJQBSJG TBCCBSRGQY LC CJSQLOBKE QAI MOLTRSQ LC QWL GJOEI MOBHIP
OPJ IKSOYMQBLK OIGBIP LK QAI HJQAIHJQBSJG TBCCBSRGQY LC CJSQLOBKE QAI MOLTRSQ LC QWL GJOEI MOBHIP
RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES
monoalphabetic
monoalphabetic
substitution
{ "type": "keyword", "value": "JUSTICE" }
beginner
en
83
97
cipher_museum
2.0
public
null
null
alberti-disk-v2-0370
EQQHVYKRBTJXQHSHKNXADKCRJYHXEWYBKCPGMNQMUNLQOCNQMBWZPLYHSYALTRXIMUDMGTJDCRATCKEXPVFQDLFRLEAUQTJMTFHOPYKJEPHBVSTVZHGFLLSHHIOXXPAZEXDKSVAW
EQQHVYKRBTJXQHSHKNXADKCRJYHXEWYBKCPGMNQMUNLQOCNQMBWZPLYHSYALTRXIMUDMGTJDCRATCKEXPVFQDLFRLEAUQTJMTFHOPYKJEPHBVSTVZHGFLLSHHIOXXPAZEXDKSVAW
ALL GAUL IS DIVIDED INTO THREE PARTS ONE OF WHICH THE BELGAE INHABIT THE AQUITANI ANOTHER AND THE THIRD THOSE WHO IN THEIR OWN LANGUAGE ARE CALLED CELTS IN OURS GAULS
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 8 }
expert
en
136
136
cipher_museum
2.0
public
null
null
cda-0002191
GHOFGWFIGVBA QWDUREF ZOD NNQU YSHGRE GB O RVSTRESBG YSGGSF GUS OWTWR PWCVSF QBZOWNSF N CBYKPVHF FDGOER JVGV HENAFCAGVGWBA QCYHZAOD HENAFCAGVGWBA DSOQF PBZIZAF VA YSL BEQSD UBBR RRGQOGWBAOZ GBBYF SLCYOVA FVNVE YWAWGF
GHOFGWFIGVBA QWDUREF ZOD NNQU YSHGRE GB O RVSTRESBG YSGGSF GUS OWTWR PWCVSF QBZOWNSF N CBYKPVHF FDGOER JVGV HENAFCAGVGWBA QCYHZAOD HENAFCAGVGWBA DSOQF PBZIZAF VA YSL BEQSD UBBR RRGQOGWBAOZ GBBYF SLCYOVA FVNVE YWAWGF
SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS
porta
porta
null
{ "key": "LIBRARY" }
hard
en
185
185
synthetic_educational
null
null
[ "kasiski_examination", "index_of_coincidence" ]
Porta: 13-row table polyalphabetic cipher; reciprocal (encrypt = decrypt).
bazeries-v3-0500
POHMLKGFAPKLGHAHIGPKFLQYOLROHVQBMFTFJBOTGFPHGKSHHOMKLPHJQKHPEFRLQKSCYKFOXO
POHMLKGFAPKLGHAHIGPKFLQYOLROHVQBMFTFJBOTGFPHGKSHHOMKLPHJQKHPEFRLQKSCYKFOXO
NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY
bazeries
bazeries
transposition
{ "type": "integer", "value": 53 }
advanced
en
74
74
cipher_museum
2.0
public
null
null
typex-v2-0027
CNTMVIOKOQQKP
CNTMVIOKOQQKP
HONOR ABOVE ALL
typex
typex
machine
{ "type": "keyword", "value": "LONDON" }
expert
en
13
13
cipher_museum
2.0
public
null
null
typex-v2-0358
DJWXLJFLDUTHAQWAACSZIBFTNXTTVEACPQSQRJEUKNQEZIBGXKRQPJSAGRIWLOSVIBVHGRIBYJYJUCEZH
DJWXLJFLDUTHAQWAACSZIBFTNXTTVEACPQSQRJEUKNQEZIBGXKRQPJSAGRIWLOSVIBVHGRIBYJYJUCEZH
GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK
typex
typex
machine
{ "type": "keyword", "value": "EMPIRE" }
expert
en
81
81
cipher_museum
2.0
public
null
null
typex-106
OSPLGKKULTGNYFOTVOPMNPKJEBJADPJUGGYYZFFRNPMVZDWGUATRWGRWY
OSPLGKKULTGNYFOTVOPMNPKJEBJADPJUGGYYZFFRNPMVZDWGUATRWGRWY
FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION
typex
typex
machine
{ "type": "keyword", "value": "BLETCHLEY" }
expert
en
57
57
cipher_museum
0.2
public
null
null
adfgvx-191
DAFFGXAGDVGGXDDFDAAAFADADA
DAFFGXAGDVGGXDDFDAAAFADADA
CHANGE OF PLANS
adfgvx
adfgvx
fractionation
{ "polybius": "ENIGMA", "columnar": "CRYPTO" }
advanced
en
26
26
cipher_museum
0.2
public
null
null
chaocipher-v3-0172
PXKTIGZJUJRRXFQITBVFOWVUNSMMIVUIGWASZRUAIGOOSFSPBOXNKQNWASFOKHLDRNXHGAVCNKC
PXKTIGZJUJRRXFQITBVFOWVUNSMMIVUIGWASZRUAIGOOSFSPBOXNKQNWASFOKHLDRNXHGAVCNKC
THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
75
75
cipher_museum
2.0
public
null
null
diana-v3-0524
QNOIEWWVHABPCRGDOTFE
QNOIEWWVHABPCRGDOTFE
THE LEGIONS STAND READY
diana
diana
polyalphabetic
{ "type": "keyword", "value": "JUSTICE" }
intermediate
en
20
20
cipher_museum
2.0
public
null
null
jn25-v3-0284
21257 21232 21235 21244 21238 21249 21239 21243 21233 21244 21240 21242 21249 21230 21233 21244 21235 21247 21235 21248 21244 21249 21231 21235 21233 21248 21244 21232 21239 21257 21232 21249 21246 21239 21257 21249 21242 21246 21238 21235 21248 21238 21259 21239 21244 21246 21249 21243 21239 21232 21233 21243 21249 21...
21257 21232 21235 21244 21238 21249 21239 21243 21233 21244 21240 21242 21249 21230 21233 21244 21235 21247 21235 21248 21244 21249 21231 21235 21233 21248 21244 21232 21239 21257 21232 21249 21246 21239 21257 21249 21242 21246 21238 21235 21248 21238 21259 21239 21244 21246 21249 21243 21239 21232 21233 21243 21249 21...
WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER
jn25
jn25
codebook
{ "type": "additive", "value": "11235" }
expert
en
370
443
cipher_museum
2.0
public
null
null
cda-0018822
801 857 805 800 855 823 999 814 840 808 842 810 814 856 999 804 874 999 853 813 863 813 852 854 825 839 820 999 857 821 814 999 800 835 846 823 801 803 814 857 999 816 800 825 835 999 807 835 842 854 813 811 999 824 855 999 801 999 845 844 856 859 862 852 812 999 841 842 858 999 800 999 854 834 844 819 801 839 999 801 ...
801 857 805 800 855 823 999 814 840 808 842 810 814 856 999 804 874 999 853 813 863 813 852 854 825 839 820 999 857 821 814 999 800 835 846 823 801 803 814 857 999 816 800 825 835 999 807 835 842 854 813 811 999 824 855 999 801 999 845 844 856 859 862 852 812 999 841 842 858 999 800 999 854 834 844 819 801 839 999 801 ...
ATBASH ENCODES BY REVERSING THE ALPHABET FAIL CLOSED IS A POSTURE NOT A SLOGAN ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE
culper_ring
culper_ring
null
{}
hard
en
113
113
synthetic_educational
null
null
[ "codebook_frequency", "number_range_analysis" ]
Culper Ring code: Washington's three-digit codebook numbers (800–999 range).
adfgvx-v2-0612
GDFAGDFADAVAFGAFAGADADGGFAADFGGGFDAGGAAAFFFAGFFDVXDVVFGFDXAXDDFGGDXXGFGFVVVVDFDGGGFDVADFVGXVDGVFGADFAFGDAGFFADFAFADAFAAGADAGGAAFFFDAAAAGAGDAFGFFFFDDGVDXFGDVXXVFXFDVVVGGDXXVGXVDFGXVVXGAFDGFGFGDDDVXVVXDDVDFGFGGVVDVFGDVXFDDGFVVGXVXVVDFFXDVVGAFAGAFAGDADAGDAAADAGDDAAAGADAAAAGAADFGAFDDGFAAGA
GDFAGDFADAVAFGAFAGADADGGFAADFGGGFDAGGAAAFFFAGFFDVXDVVFGFDXAXDDFGGDXXGFGFVVVVDFDGGGFDVADFVGXVDGVFGADFAFGDAGFFADFAFADAFAAGADAGGAAFFFDAAAAGAGDAFGFFFFDDGVDXFGDVXXVFXFDVVVGGDXXVGXVDFGXVVXGAFDGFGFGDDDVXVVXDDVDFGFGGVVDVFGDVXFDDGFVVGXVXVVDFFXDVVGAFAGAFAGDADAGDAAADAGDDAAAGADAAAAGAADFGAFDDGFAAGA
WITH MALICE TOWARD NONE WITH CHARITY FOR ALL WITH FIRMNESS IN THE RIGHT AS GOD GIVES US TO SEE THE RIGHT LET US STRIVE ON TO FINISH THE WORK WE ARE IN TO BIND UP THE NATIONS WOUNDS
adfgvx
adfgvx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
286
286
cipher_museum
2.0
public
null
null
autokey-v3-0043
BEDSCKQVWUEOZVHEPMVVOA
BEDSCKQVWUEOZVHEPMVVOA
MESSAGE RECEIVED CLEARLY
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "PALACE" }
intermediate
en
22
22
cipher_museum
2.0
public
null
null
playfair-vf-0105
YKOZWHTAEGBDSOOFEODZKQEZBLNCHQYKASHQEAGHAELFAGQUNFVLBMPFYIATLNZLCPKDQO
YKOZWHTAEGBDSOOFEODZKQEZBLNCHQYKASHQEAGHAELFAGQUNFVLBMPFYIATLNZLCPKDQO
THE UNBREAKABLE CODE EXISTS ONLY IN THE MIND OF GOD FOR ALL HUMAN CIPHERS MUST YIELD
playfair
playfair
polygraphic
{ "type": "keyword", "value": "CRYPTO" }
intermediate
en
70
70
cipher_museum
2.0
public
null
null
geez-monastic-v2-0293
WPPUFWUDPJUUMQZJZYVUDVPAVCUMYFWBMLVHFMWQAUFWUUVPA
WPPUFWUDPJUUMQZJZYVUDVPAVCUMYFWBMLVHFMWQAUFWUUVPA
ALL THAT GLITTERS IS NOT GOLD OFTEN HAVE YOU HEARD THAT TOLD
geez_monastic
geez_monastic
substitution
{ "type": "keyword", "value": "LALIBELA" }
advanced
en
49
49
cipher_museum
2.0
public
null
null
hill-v2-0610
AGZUFIHOOXRPDXWWXWVAZUHDXGIKKULOWEZALPSWZOYZXWFVVLXTNGPCOYFEWVSICBVAJKNQDNLIOXMCXF
AGZUFIHOOXRPDXWWXWVAZUHDXGIKKULOWEZALPSWZOYZXWFVVLXTNGPCOYFEWVSICBVAJKNQDNLIOXMCXF
GENERAL ORDERS NUMBER ONE ALL COMMUNICATIONS SHALL BE ENCRYPTED USING THE APPROVED CIPHER DISK
hill
hill
polygraphic
{ "a": 11, "b": 3, "c": 2, "d": 5 }
advanced
en
82
82
cipher_museum
2.0
public
null
null
cda-0020288
857 821 814 999 824 841 809 812 869 999 842 815 999 808 844 825 841 807 826 811 813 841 807 812 999 825 854 999 801 999 862 854 812 816 862 833 999 806 833 860 814 999 802 999 856 859 852 843 841 819 999 806 833 802 826 838 999 839 813 814 809 854 999 855 857 853 842 840 820 999 814 864 825 809 813 841 807 813 999 817 ...
857 821 814 999 824 841 809 812 869 999 842 815 999 808 844 825 841 807 826 811 813 841 807 812 999 825 854 999 801 999 862 854 812 816 862 833 999 806 833 860 814 999 802 999 856 859 852 843 841 819 999 806 833 802 826 838 999 839 813 814 809 854 999 855 857 853 842 840 820 999 814 864 825 809 813 841 807 813 999 817 ...
THE INDEX OF COINCIDENCE IS A USEFUL CLUE A STRONG CLAIM NEEDS STRONG EVIDENCE FAIL CLOSED IS A POSTURE NOT A SLOGAN OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION
culper_ring
culper_ring
null
{}
hard
en
138
138
synthetic_educational
null
null
[ "codebook_frequency", "number_range_analysis" ]
Culper Ring code: Washington's three-digit codebook numbers (800–999 range).
cda-0003252
EHPLT AYBVE SRCNE DEOBA XTHES RGNEI BTHSA A
EHPLT AYBVE SRCNE DEOBA XTHES RGNEI BTHSA A
ATBASH ENCODES BY REVERSING THE ALPHABET
double_transposition
double_transposition
null
{ "key1": "SECURE", "key2": "SIGNAL" }
medium
en
36
36
synthetic_educational
null
null
[ "key_length_search", "anagram_recovery" ]
Double columnar transposition: apply columnar twice for stronger security.
bifid-v2-0053
LLWNPTPNQFOMGOCDCURTBEPUBQMFSARAQCKGMHUNOGXHEGWOPTUDDUTSEGRAKUFUSAOGZOMIUQT
LLWNPTPNQFOMGOCDCURTBEPUBQMFSARAQCKGMHUNOGXHEGWOPTUDDUTSEGRAKUFUSAOGZOMIUQT
ENEMY FORCES REPORTED MOVING TOWARD GETTYSBURG CAVALRY HAS CONFIRMED THE FULL SIGHTING
bifid
bifid
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
75
75
cipher_museum
2.0
public
null
null
typex-v3-0136
ONKKZSKSJRYGHDNGYZUMZYOAZ
ONKKZSKSJRYGHDNGYZUMZYOAZ
THE SHOT HEARD ROUND THE WORLD
typex
typex
machine
{ "type": "keyword", "value": "BRITAIN" }
expert
en
25
25
cipher_museum
2.0
public
null
null
fialka-092
LDPNMEFWZQNJMJZESQOHQJRXUUELHDGLPOQKKWJLIQHCI
LDPNMEFWZQNJMJZESQOHQJRXUUELHDGLPOQKKWJLIQHCI
NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE
fialka
fialka
machine
{ "type": "seed", "value": "CIPHER" }
expert
en
45
45
cipher_museum
0.2
public
null
null
cda-0012985
K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ⌐ ┌ ┘· Γ L └ r ⌐ ─ r └ ⌐ X X Γ· ⌐· ⌒· ┐· ⌐ K K L ┌· ─ X ¬ X· K Γ· K r ⌐ ─ ⌐ └ X ┘· ¬ L ⌒ ┌· ┘· ─ ¬·
K r· L Γ· ─ Γ L ⌣ ┘· ⌐· r ┘· Γ· ─ r Γ· Γ L ─ r L Γ· X ⌐ X· X L ⌐· X· └ r └ X· L ⌐ ┌ ┘· Γ L └ r ⌐ ─ r └ ⌐ X X Γ· ⌐· ⌒· ┐· ⌐ K K L ┌· ─ X ¬ X· K Γ· K r ⌐ ─ ⌐ └ X ┘· ¬ L ⌒ ┌· ┘· ─ ¬·
THE INDEX OF COINCIDENCE IS A USEFUL CLUE A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
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.
alberti-disk-v3-0786
FMPBAMNURWTUMMNUVWMYHSLVISIOSIVBCJJDHJCJPHQKVILKYIDPJVBEXLODFUKOUXPZNVINBI
FMPBAMNURWTUMMNUVWMYHSLVISIOSIVBCJJDHJCJPHQKVILKYIDPJVBEXLODFUKOUXPZNVINBI
THE LIGHT YOU SEE FROM DISTANT STARS LEFT THOSE SUNS THOUSANDS OF YEARS BEFORE YOUR BIRTH
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 17 }
expert
en
74
74
cipher_museum
2.0
public
null
null
kl7-060
AVJMAWYNYWQMGJBPVPOCEPHINXRMZEUDTYWZPPERRYFMJRDKLNWSYSBPCQAMSNDTYSDNCNEJIONUYJWOVUUGPUTUOVUHUTGVQJPIPUZLUIHMFCWRXRKASKWMOBONFKQNTPWEZNYTRMPAPGE
AVJMAWYNYWQMGJBPVPOCEPHINXRMZEUDTYWZPPERRYFMJRDKLNWSYSBPCQAMSNDTYSDNCNEJIONUYJWOVUUGPUTUOVUHUTGVQJPIPUZLUIHMFCWRXRKASKWMOBONFKQNTPWEZNYTRMPAPGE
CRYPTANALYSIS IS THE ART OF BREAKING CODES WITHOUT THE KEY AND IT HAS BEEN PRACTICED FOR AS LONG AS THERE HAVE BEEN CODES TO BREAK THE HISTORY OF CRYPTOLOGY IS A BATTLE OF WITS
kl7
kl7
machine
{ "type": "seed", "value": "TSEC" }
expert
en
143
143
cipher_museum
0.2
public
null
null
trifid-v3-0265
YHBYNELPVKRBONK+FYCVD+DESCBDNDUSRQHRNZAYOJECEEIYLOQIDQBHEHPBLIMIXSCZFWW
YHBYNELPVKRBONK+FYCVD+DESCBDNDUSRQHRNZAYOJECEEIYLOQIDQBHEHPBLIMIXSCZFWW
TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW
trifid
trifid
fractionation
{ "type": "keyword", "value": "LIBERTY" }
advanced
en
71
71
cipher_museum
2.0
public
null
null
cda-0016232
3.6.7 11.2.4 8.6.7 5.4.2 16.3.10 4.5.6 12.1.1 12.2.3 5.5.8 7.6.6 2.6.3 6.6.1 18.3.2 7.3.9 7.2.8 1.5.10 3.4.1 3.5.8 6.5.3 19.2.5 18.3.3 7.1.5 13.6.7 8.2.9 5.5.4 2.6.9 18.5.4 5.4.2 8.1.10 7.5.3 7.2.4 14.1.6 6.6.8 16.4.10 10.1.1 9.1.10 9.2.4 8.4.5 7.2.6 9.4.1 12.4.7 18.1.10 20.2.6 12.3.2 16.4.5 16.4.8 11.3.9 6.5.10 20.5.2...
3.6.7 11.2.4 8.6.7 5.4.2 16.3.10 4.5.6 12.1.1 12.2.3 5.5.8 7.6.6 2.6.3 6.6.1 18.3.2 7.3.9 7.2.8 1.5.10 3.4.1 3.5.8 6.5.3 19.2.5 18.3.3 7.1.5 13.6.7 8.2.9 5.5.4 2.6.9 18.5.4 5.4.2 8.1.10 7.5.3 7.2.4 14.1.6 6.6.8 16.4.10 10.1.1 9.1.10 9.2.4 8.4.5 7.2.6 9.4.1 12.4.7 18.1.10 20.2.6 12.3.2 16.4.5 16.4.8 11.3.9 6.5.10 20.5.2...
A TRANSPARENT TOOL SHOULD SHOW ITS REASONING ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION
arnold_andre
arnold_andre
null
{}
hard
en
186
186
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
cardano-autokey-v2-0006
FALTPSKAAZLPO
FALTPSKAAZLPO
THE PASS IS HELD
cardano_autokey
cardano_autokey
polyalphabetic
{ "type": "keyword", "value": "MILAN" }
advanced
en
13
13
cipher_museum
2.0
public
null
null
hill-v2-0229
OXUIPHWGMKJCETWGJSMOFXPJCANMOIBKXKHVMNKWXEFELYMKIBYQEUNSBDPZRGNTIMJGOHYGXSIBFPRC
OXUIPHWGMKJCETWGJSMOFXPJCANMOIBKXKHVMNKWXEFELYMKIBYQEUNSBDPZRGNTIMJGOHYGXSIBFPRC
THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ
hill
hill
polygraphic
{ "a": 5, "b": 7, "c": 2, "d": 9 }
advanced
en
80
80
cipher_museum
2.0
public
null
null
vigenere-v3-0501
WYEVCJHISTCGGVLKUNWVDZCGKVUTWGHUSZOGHJBEHUHTOTGGLKUZWBQRRKFRVVRBSQWFTNSFWRTKG
WYEVCJHISTCGGVLKUNWVDZCGKVUTWGHUSZOGHJBEHUHTOTGGLKUZWBQRRKFRVVRBSQWFTNSFWRTKG
THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "DRAGON" }
intermediate
en
77
77
cipher_museum
2.0
public
null
null
solitaire-v3-0251
HRSLFLUVRLSYQTLUREHSBD
HRSLFLUVRLSYQTLUREHSBD
MESSAGE RECEIVED CLEARLY
solitaire
solitaire
stream
{ "type": "passphrase", "value": "PONTIFEX" }
expert
en
22
22
cipher_museum
2.0
public
null
null
rot13-fr-016
YN IVPGBVER RFG N ABHF FV ABHF FNIBAF YN CERAQER
YN IVPGBVER RFG N ABHF FV ABHF FNIBAF YN CERAQER
LA VICTOIRE EST A NOUS SI NOUS SAVONS LA PRENDRE
rot13
rot13
substitution
{ "type": "none", "value": null }
beginner
fr
39
48
cipher_museum
0.2
public
null
null
culper-ring-v3-0074
998 803 814 999 998 820 813 819 814 999 998 814 819 807 804 817 818 999 111 998 824 814 820 999 998 822 814 820 811 803 999 122 157 998 803 814 999 998 820 813 819 814 999 998 824 814 820 999 117 106 100 998 806 814 811 803 804 813 999 998 817 820 811 804 999 101 127 998 817 804 811 808 806 808 814 813 818 999
998 803 814 999 998 820 813 819 814 999 998 814 819 807 804 817 818 999 111 998 824 814 820 999 998 822 814 820 811 803 999 122 157 998 803 814 999 998 820 813 819 814 999 998 824 814 820 999 117 106 100 998 806 814 811 803 804 813 999 998 817 820 811 804 999 101 127 998 817 804 811 808 806 808 814 813 818 999
DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS
culper_ring
culper_ring
codebook
{ "type": "none", "value": null }
expert
en
234
311
cipher_museum
2.0
public
null
null
columnar-transposition-v3-0713
NOSAIFORPOREATIEAITTHCLIEIEMTFYOETAMRYETELUAGDWPRRNHACFNOTECNOTCIFIRFGSSPLHMDLCTUOR
NOSAIFORPOREATIEAITTHCLIEIEMTFYOETAMRYETELUAGDWPRRNHACFNOTECNOTCIFIRFGSSPLHMDLCTUOR
RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES
columnar_transposition
columnar_transposition
transposition
{ "type": "keyword", "value": "FREEDOM" }
intermediate
en
83
83
cipher_museum
2.0
public
null
null
cda-0014988
44 23 15 12 15 43 44 31 15 43 43 34 33 43 43 23 34 52 52 23 15 42 15 44 23 15 32 15 44 23 34 14 21 11 24 31 43 23 24 43 44 34 42 24 13 11 31 13 24 35 23 15 42 43 11 42 15 44 15 11 13 23 15 42 43 33 34 44 35 42 34 44 15 13 44 24 34 33 15 33 44 42 34 35 54 32 15 11 43 45 42 15 43 45 33 13 15 42 44 11 24 33 44 54 24 33 11...
44 23 15 12 15 43 44 31 15 43 43 34 33 43 43 23 34 52 52 23 15 42 15 44 23 15 32 15 44 23 34 14 21 11 24 31 43 23 24 43 44 34 42 24 13 11 31 13 24 35 23 15 42 43 11 42 15 44 15 11 13 23 15 42 43 33 34 44 35 42 34 44 15 13 44 24 34 33 15 33 44 42 34 35 54 32 15 11 43 45 42 15 43 45 33 13 15 42 44 11 24 33 44 54 24 33 11...
THE BEST LESSONS SHOW WHERE THE METHOD FAILS HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION
polybius
polybius
null
{}
hard
en
119
119
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
cda-0013405
17.2.2 4.3.3 20.5.2 2.2.2 12.6.9 10.6.2 1.4.8 20.2.2 12.5.5 9.5.10 13.5.2 15.6.6 18.5.6 7.2.10 14.2.10 18.6.1 9.6.8 12.5.2 1.3.8 18.1.2 9.1.9 1.3.6 7.4.4 9.5.9 6.2.6 4.6.6 13.5.4 11.3.6 12.1.2 17.3.4 6.2.4 11.6.9 10.6.3 13.3.8 13.6.6 2.5.8 1.5.3 3.1.8 18.2.1 15.6.9 8.4.8 12.3.3 16.4.9 13.4.4 1.1.1 6.6.5 12.2.4 6.3.10 4...
17.2.2 4.3.3 20.5.2 2.2.2 12.6.9 10.6.2 1.4.8 20.2.2 12.5.5 9.5.10 13.5.2 15.6.6 18.5.6 7.2.10 14.2.10 18.6.1 9.6.8 12.5.2 1.3.8 18.1.2 9.1.9 1.3.6 7.4.4 9.5.9 6.2.6 4.6.6 13.5.4 11.3.6 12.1.2 17.3.4 6.2.4 11.6.9 10.6.3 13.3.8 13.6.6 2.5.8 1.5.3 3.1.8 18.2.1 15.6.9 8.4.8 12.3.3 16.4.9 13.4.4 1.1.1 6.6.5 12.2.4 6.3.10 4...
HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF
arnold_andre
arnold_andre
null
{}
hard
en
102
102
synthetic_educational
null
null
[ "book_cipher_attack", "triple_index_search" ]
Arnold-André book cipher: coordinates (page.section.word) referencing a shared text.
enigma-v3-0543
ABFXEHXWXOLFL
ABFXEHXWXOLFL
FULL SAIL AHEAD
enigma
enigma
machine
{ "type": "rotor_start", "value": "PQR" }
expert
en
13
13
cipher_museum
2.0
public
null
null
jn25-v2-0012
26192 26188 26198 26198 26188 26194 26193 26180 26182 26182 26194 26192 26195 26191 26188 26198 26187 26184 26183
26192 26188 26198 26198 26188 26194 26193 26180 26182 26182 26194 26192 26195 26191 26188 26198 26187 26184 26183
MISSION ACCOMPLISHED
jn25
jn25
codebook
{ "type": "additive", "value": "16180" }
expert
en
95
113
cipher_museum
2.0
public
null
null
geheimschreiber-v3-0086
AFKTDDGTIIFCXIXTYKJKUOMRPYZNDKUUUWNOCJLWAYZZWTAEWEMNERAHDVGAGDFQZCSAJJOUALEXZLF
AFKTDDGTIIFCXIXTYKJKUOMRPYZNDKUUUWNOCJLWAYZZWTAEWEMNERAHDVGAGDFQZCSAJJOUALEXZLF
ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION
geheimschreiber
geheimschreiber
machine
{ "type": "seed", "value": "BERLIN" }
expert
en
79
79
cipher_museum
2.0
public
null
null
hill-v2-0331
NALUBKGSXRJXPSLOSRJWZSFEKCCSJDGWYHMYFRKQWUWPJXCEXCPQTZBXWUBKCFEGFELMWUWPMWVALMNF
NALUBKGSXRJXPSLOSRJWZSFEKCCSJDGWYHMYFRKQWUWPJXCEXCPQTZBXWUBKCFEGFELMWUWPMWVALMNF
NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES
hill
hill
polygraphic
{ "a": 7, "b": 3, "c": 4, "d": 5 }
advanced
en
80
80
cipher_museum
2.0
public
null
null
kryptos-v3-0275
NVODKKHAPBKSNVLBEBCMWKJVGZYMAQGHHHXIZJBDGXSQVFFMOASJYKNZWKBBCEXVTQLPMXLNP
NVODKKHAPBKSNVLBEBCMWKJVGZYMAQGHHHXIZJBDGXSQVFFMOASJYKNZWKBBCEXVTQLPMXLNP
WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY
kryptos
kryptos
polyalphabetic
{ "type": "keyword", "value": "VIRTUAL" }
advanced
en
73
73
cipher_museum
2.0
public
null
null
great-cipher-v2-0061
130 135 133 117 167 175 160 134 104 166 162 170 175 102 160 138 124 152 151 148 138 175 143 100 106 167 133 117 167 175 160 138 124 151 148 138 175 134 104 162 170 166 175 160 152 179 174 154 175 161 128 166 174 118 133 154 166 175 172
130 135 133 117 167 175 160 134 104 166 162 170 175 102 160 138 124 152 151 148 138 175 143 100 106 167 133 117 167 175 160 138 124 151 148 138 175 134 104 162 170 166 175 160 152 179 174 154 175 161 128 166 174 118 133 154 166 175 172
ASK WHAT YOU CAN DO FOR YOUR COUNTRY NOT WHAT YOUR COUNTRY CAN DO FOR YOU TODAY AND ALWAYS
great_cipher
great_cipher
nomenclator
{ "type": "seed", "value": "VERSAILLES" }
expert
en
177
235
cipher_museum
2.0
public
null
null
m209-v3-0377
JWZZBLLUZQZXZKMHMCLLYQBMKYAJWMZABBGNGQZBRNKOIZKYVZKELVPKKFRABDMKDRLUCLMOIDS
JWZZBLLUZQZXZKMHMCLLYQBMKYAJWMZABBGNGQZBRNKOIZKYVZKELVPKKFRABDMKDRLUCLMOIDS
THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL
m209
m209
machine
{ "type": "seed", "value": "VICTORY" }
expert
en
75
75
cipher_museum
2.0
public
null
null
diana-v2-0172
WIEJAIDFPRCWWSLPLGBSJLTAAIPASYQKEZNSCGOPTHBCEQEEXYEBKWWAHPMKMWHZ
WIEJAIDFPRCWWSLPLGBSJLTAAIPASYQKEZNSCGOPTHBCEQEEXYEBKWWAHPMKMWHZ
WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET
diana
diana
polyalphabetic
{ "type": "keyword", "value": "SPECIAL" }
intermediate
en
64
64
cipher_museum
2.0
public
null
null
cda-0021881
.- .-.. .- -. / - ..- .-. .. -. --. / -... .-. --- -.- . / . -. .. --. -- .- / .-- .. - .... / -.-. .-. .. -... ... / .- -. -.. / - .... . / -... --- -- -... . / -- .- -.-. .... .. -. . / -.-. . .-. - .- .. -. .-.. -.--
.- .-.. .- -. / - ..- .-. .. -. --. / -... .-. --- -.- . / . -. .. --. -- .- / .-- .. - .... / -.-. .-. .. -... ... / .- -. -.. / - .... . / -... --- -- -... . / -- .- -.-. .... .. -. . / -.-. . .-. - .- .. -. .-.. -.--
ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE CERTAINLY
morse_code
morse_code
null
{}
medium
en
57
57
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
adfgx-v2-0352
DGAGFFGFFGADFADGGAGFFDDG
DGAGFFGFFGADFADGGAGFFDDG
THE DIE IS CAST
adfgx
adfgx
fractionation
{ "polybius": "DRAGON", "columnar": "THUNDER" }
advanced
en
24
24
cipher_museum
2.0
public
null
null
cda-0012052
838 844 809 812 853 840 999 813 839 808 852 873 846 857 826 844 840 999 824 855 999 841 842 858 999 805 851 842 832 812 839 999 803 874 999 835 812 857 857 813 852 999 815 851 813 850 861 812 841 808 872 999 847 843 834 874 800 835 846 821 802 803 812 858 824 807 999 807 825 847 822 812 851 854 999 861 854 814 999 838 ...
838 844 809 812 853 840 999 813 839 808 852 873 846 857 826 844 840 999 824 855 999 841 842 858 999 805 851 842 832 812 839 999 803 874 999 835 812 857 857 813 852 999 815 851 813 850 861 812 841 808 872 999 847 843 834 874 800 835 846 821 802 803 812 858 824 807 999 807 825 847 822 812 851 854 999 861 854 814 999 838 ...
MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS
culper_ring
culper_ring
null
{}
hard
en
138
138
synthetic_educational
null
null
[ "codebook_frequency", "number_range_analysis" ]
Culper Ring code: Washington's three-digit codebook numbers (800–999 range).
lorenz-v2-0463
ABORSANDWITHDRAW
ABORSANDWITHDRAW
ABORT AND WITHDRAW
lorenz
lorenz
machine
{ "type": "seed", "value": "STURGEON" }
expert
en
16
16
cipher_museum
2.0
public
null
null
bifid-vg-0050
LVHOQSQTSSKDPOSRSZLFMLPOELHLRRUESLMPIZFZOEDIXGHQVYVPXENAMXWWNAFUNZR
LVHOQSQTSSKDPOSRSZLFMLPOELHLRRUESLMPIZFZOEDIXGHQVYVPXENAMXWWNAFUNZR
LOVE IS PATIENT LOVE IS KIND IT DOES NOT ENVY IT DOES NOT BOAST IT IS NOT PROUD AT ALL
bifid
bifid
fractionation
{ "type": "keyword", "value": "MUSEUM" }
advanced
en
67
67
cipher_museum
2.0
public
null
null
cda-0021296
CLAG IAIH AKHA DIBE HYAZ ZIET SAHA SZIH SHUS HTKI NNOD AIHD IBEH DZEH TSAH MOAS IAKH ABED ZEHB EDIB EHYA ZZIE DZEH THAN ZIET HANZ IEDZ EHGA HDIB EHWO LLAC HEED IBEH CLAG IAIH WOLL ACHE ETKI NGAH DIBE HAKH AMAE TSAH NODA IHNA ASTS OSIS HUSH DZEH GAHD IBEH MAEG AH
CLAG IAIH AKHA DIBE HYAZ ZIET SAHA SZIH SHUS HTKI NNOD AIHD IBEH DZEH TSAH MOAS IAKH ABED ZEHB EDIB EHYA ZZIE DZEH THAN ZIET HANZ IEDZ EHGA HDIB EHWO LLAC HEED IBEH CLAG IAIH WOLL ACHE ETKI NGAH DIBE HAKH AMAE TSAH NODA IHNA ASTS OSIS HUSH DZEH GAHD IBEH MAEG AH
POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE
navajo_code
navajo_code
null
{}
hard
en
210
210
synthetic_educational
null
null
[ "codebook_frequency", "word_list_attack" ]
Navajo Code Talker cipher: Navajo words represent English letters.
solitaire-105
ABGNVFLLUUKNBUBVIPKXDHKQQROZNOGYGPLRYYPUILPVEB
ABGNVFLLUUKNBUBVIPKXDHKQQROZNOGYGPLRYYPUILPVEB
I HAVE NOT YET BEGUN TO FIGHT SAID THE CAPTAIN TO THE CREW
solitaire
solitaire
stream
{ "type": "passphrase", "value": "CRYPTONOMICON" }
expert
en
46
46
cipher_museum
0.2
public
null
null
bifid-v2-0575
BMDAOIAUDOEDIQHNFHOBEOIEMBIIAGOBFHNIPNOQUCBIIAGOICFHRAOODWGIHHSAOMAGFFAOAOWWQAZFIKBTENVLUUIVAIBNODOXEWLGCEBNAIBIUFWZSEWLGCIFNIAIEFIUWCBRBTEICPTIIEFCFAD
BMDAOIAUDOEDIQHNFHOBEOIEMBIIAGOBFHNIPNOQUCBIIAGOICFHRAOODWGIHHSAOMAGFFAOAOWWQAZFIKBTENVLUUIVAIBNODOXEWLGCEBNAIBIUFWZSEWLGCIFNIAIEFIUWCBRBTEICPTIIEFCFAD
ALL WARFARE IS BASED ON DECEPTION HENCE WHEN ABLE TO ATTACK WE MUST SEEM UNABLE WHEN USING OUR FORCES WE MUST SEEM INACTIVE WHEN WE ARE NEAR WE MUST MAKE THE ENEMY BELIEVE WE ARE FAR AWAY
bifid
bifid
fractionation
{ "type": "keyword", "value": "JUSTICE" }
advanced
en
151
151
cipher_museum
2.0
public
null
null
porta-v3-0156
YMHBCPFTXMETTOACFKUTFVGMWAZPQGIZSVVXFYFLYWPFJLTAUIWIXOEXNIFVFOQTKCVVXERPN
YMHBCPFTXMETTOACFKUTFVGMWAZPQGIZSVVXFYFLYWPFJLTAUIWIXOEXNIFVFOQTKCVVXERPN
DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE
porta
porta
polyalphabetic
{ "type": "keyword", "value": "RENAISSANCE" }
intermediate
en
73
73
cipher_museum
2.0
public
null
null
kama-sutra-v3-0328
RAPJNAX MU MJN ZRFFX
RAPJNAX MU MJN ZRFFX
ARCHERS TO THE WALLS
kama_sutra
kama_sutra
substitution
{ "type": "keyword", "value": "WISDOM" }
intermediate
en
17
20
cipher_museum
2.0
public
null
null
fractionated-morse-v2-0497
NFUFAAEPLDVLKSIHAIHNJXKTEKWBOSSAPFTXNGUKSIOSXFVEBTNUINFWNEALFBLLMHUHBLGUFTVVBSEKSATNFWPFTATVPSEBNDWNIARUDVLFVLFXBPEARSSAVBFVLMHAMIIEIJUIHAAJSEAIAIMOAPSUIPDTBOTINPANGVLFXFANERBLRVVAPNXFBLGXKTASMANGSXFSAVIDUNE
NFUFAAEPLDVLKSIHAIHNJXKTEKWBOSSAPFTXNGUKSIOSXFVEBTNUINFWNEALFBLLMHUHBLGUFTVVBSEKSATNFWPFTATVPSEBNDWNIARUDVLFVLFXBPEARSSAVBFVLMHAMIIEIJUIHAAJSEAIAIMOAPSUIPDTBOTINPANGVLFXFANERBLRVVAPNXFBLGXKTASMANGSXFSAVIDUNE
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
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
207
207
cipher_museum
2.0
public
null
null
one-time-pad-v3-0103
JDIBBLALSBAFGXLLJVEX
JDIBBLALSBAFGXLLJVEX
THE KING DEMANDS FEALTY
one_time_pad
one_time_pad
stream
{ "type": "pad", "value": "QWERTY (repeating)" }
expert
en
20
20
cipher_museum
2.0
public
null
null
confederate-vigenere-v2-0673
WZGFAUSZYOPGCGVFFLRQVKFENVJDWWCFFMJZCMQELXUIJATQEJJMYKN
WZGFAUSZYOPGCGVFFLRQVKFENVJDWWCFFMJZCMQELXUIJATQEJJMYKN
BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES
confederate_vigenere
confederate_vigenere
polyalphabetic
{ "type": "keyword", "value": "VICKSBURG" }
intermediate
en
55
55
cipher_museum
2.0
public
null
null
vigenere-v2-1793
IRBCQCJXSZCZVZOZKNAGF
IRBCQCJXSZCZVZOZKNAGF
PATIENCE BRINGS VICTORY
vigenere
vigenere
polyalphabetic
{ "type": "keyword", "value": "TRIUMPH" }
intermediate
en
21
21
cipher_museum
2.0
public
null
null
autokey-177
AXKJVTBAMJWOKBWKTPVBWKSEIKMTEWIGBQTAIJKSTAXGJORXFAAXZRSBMSWEKVWYVRXZJHTTAJJSTHUSJIKRROUAHWEKHERVROEARFUIVGXLRROCMPOGVONZEYQRQZMHVKDLGIHOLXFKLVWMMYWLEXFMFCQ
AXKJVTBAMJWOKBWKTPVBWKSEIKMTEWIGBQTAIJKSTAXGJORXFAAXZRSBMSWEKVWYVRXZJHTTAJJSTHUSJIKRROUAHWEKHERVROEARFUIVGXLRROCMPOGVONZEYQRQZMHVKDLGIHOLXFKLVWMMYWLEXFMFCQ
IT IS RATHER FOR US TO BE HERE DEDICATED TO THE GREAT TASK REMAINING BEFORE US THAT FROM THESE HONORED DEAD WE TAKE INCREASED DEVOTION TO THAT CAUSE FOR WHICH THEY GAVE THE LAST FULL MEASURE
autokey
autokey
polyalphabetic
{ "type": "keyword", "value": "SECRET" }
intermediate
en
155
155
cipher_museum
0.2
public
null
null
cda-0014658
board exact among until flank other route turns issue stage troop heads early roads enter cover intel point right order clear alert leads order front
board exact among until flank other route turns issue stage troop heads early roads enter cover intel point right order clear alert leads order front
BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF THE BEST LESSONS SHOW WHERE THE METHOD FAILS
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.
four-square-v2-0015
ABKSQLNTYDSGASAV
ABKSQLNTYDSGASAV
ABORT AND WITHDRAW
four_square
four_square
polygraphic
{ "key1": "PALACE", "key2": "BATTLE" }
advanced
en
16
16
cipher_museum
2.0
public
null
null
gronsfeld-v2-0566
VLKTOTHOAMAWNMPJIXLIULGTLPSZEAPXNMMCOKBHOIRQEFSCVIPKXMEPTGATWVKABAWZQLNAGBETW
VLKTOTHOAMAWNMPJIXLIULGTLPSZEAPXNMMCOKBHOIRQEFSCVIPKXMEPTGATWVKABAWZQLNAGBETW
THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS
gronsfeld
gronsfeld
polyalphabetic
{ "type": "numeric", "value": "24680" }
intermediate
en
77
77
cipher_museum
2.0
public
null
null
trifid-v3-0337
I++EKUURZSIVVYN
I++EKUURZSIVVYN
CHART THE UNKNOWN
trifid
trifid
fractionation
{ "type": "keyword", "value": "FREEDOM" }
advanced
en
15
15
cipher_museum
2.0
public
null
null
four-square-174
KSLPMTEPUHHCLHGT
KSLPMTEPUHHCLHGT
PROCEED AS PLANNED
four_square
four_square
polygraphic
{ "key1": "ENIGMA", "key2": "CRYPTO" }
advanced
en
16
16
cipher_museum
0.2
public
null
null
fialka-v2-0071
WFNXMDKNDDLDAZJLDBTPAPCCLGVWKPAJPINXQJKHDDCHJDKCNEZAPRBWOUNBVKG
WFNXMDKNDDLDAZJLDBTPAPCCLGVWKPAJPINXQJKHDDCHJDKCNEZAPRBWOUNBVKG
IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS
fialka
fialka
machine
{ "type": "seed", "value": "MOSCOW" }
expert
en
63
63
cipher_museum
2.0
public
null
null
bazeries-v3-0018
VSTOQDYOTCVTCQJQORK
VSTOQDYOTCVTCQJQORK
TREACHERY IN THE COURT
bazeries
bazeries
transposition
{ "type": "integer", "value": 17 }
advanced
en
19
19
cipher_museum
2.0
public
null
null
rail-fence-v3-0208
TCNHEDVCATANOHETMITRNIETOINEELIISGEEGVEJWONYEEGTHSEEMVITEUEPTSEVOHRETEEHPOFTGEENNSONDRURERIFTRTTTYUOIISRGEORTAAENNPCNEOOEYRSSNLSSTDFESHTHMOAHAEFNNDCADTLAEHINMWOETETNRNIENEGEUHDN
TCNHEDVCATANOHETMITRNIETOINEELIISGEEGVEJWONYEEGTHSEEMVITEUEPTSEVOHRETEEHPOFTGEENNSONDRURERIFTRTTTYUOIISRGEORTAAENNPCNEOOEYRSSNLSSTDFESHTHMOAHAEFNNDCADTLAEHINMWOETETNRNIENEGEUHDN
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
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
177
177
cipher_museum
2.0
public
null
null
caesar-v2-0827
SD GKC DRO LOCD YP DSWOC SD GKC KX KQO YP GSCNYW KXN KX KQO YP EDDOB PYYVSCRXOCC
SD GKC DRO LOCD YP DSWOC SD GKC KX KQO YP GSCNYW KXN KX KQO YP EDDOB PYYVSCRXOCC
IT WAS THE BEST OF TIMES IT WAS AN AGE OF WISDOM AND AN AGE OF UTTER FOOLISHNESS
caesar
caesar
substitution
{ "type": "shift", "value": 10 }
beginner
en
63
80
cipher_museum
2.0
public
null
null
kl7-v3-0231
DCGVNQNTEJDCL
DCGVNQNTEJDCL
FULL SAIL AHEAD
kl7
kl7
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
13
13
cipher_museum
2.0
public
null
null
fractionated-morse-v2-0060
HDHWQNHSDNDQTVVFUBCSFSLDLDOJDNPDQSWOCSJDJIQNASJMTFSLFLDCUJPUMSJMSOJLPTLBJHVTXLMV
HDHWQNHSDNDQTVVFUBCSFSLDLDOJDNPDQSWOCSJDJIQNASJMTFSLFLDCUJPUMSJMSOJLPTLBJHVTXLMV
BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION
fractionated_morse
fractionated_morse
fractionation
{ "type": "keyword", "value": "PALACE" }
advanced
en
80
80
cipher_museum
2.0
public
null
null
cda-0021263
AAAAA ABABB ABBAB AAABB AABAA ABABA AAABA AAAAA ABBAA AAABA ABABA AAAAA BAAAB BAAAB ABAAA AABAB BABBA ABBBA AAAAA BAABA BAABA AABAA BAAAA ABBAA BAAAB AAAAB BAABB BAABA ABAAA BAABA AAABA AAAAA ABBAA AAAAA ABABA BAAAB ABBAB AAAAB AABAA BABAA BAAAA ABBAB ABBAA AABBA ABBAA AABAA BAABB AABAA BAAAA
AAAAA ABABB ABBAB AAABB AABAA ABABA AAABA AAAAA ABBAA AAABA ABABA AAAAA BAAAB BAAAB ABAAA AABAB BABBA ABBBA AAAAA BAABA BAABA AABAA BAAAA ABBAA BAAAB AAAAB BAABB BAABA ABAAA BAABA AAABA AAAAA ABBAA AAAAA ABABA BAAAB ABBAB AAAAB AABAA BABAA BAAAA ABBAB ABBAA AABBA ABBAA AABAA BAABB AABAA BAAAA
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG NEVER
bacon_cipher
bacon_cipher
null
{}
hard
en
245
245
synthetic_educational
null
null
[ "five_bit_decode", "ab_frequency_analysis" ]
Bacon's biliteral cipher: each letter encoded as 5-bit A/B string.
sigaba-v2-0306
XTPKYGEUCSNRIUDGRSBXLMDPQXSFDQDNTVLPTFUBWQEXTSNIBLFNSSRGPJDFBFJREYYGTRVMCTR
XTPKYGEUCSNRIUDGRSBXLMDPQXSFDQDNTVLPTFUBWQEXTSNIBLFNSSRGPJDFBFJREYYGTRVMCTR
ARMY OF THE POTOMAC CROSSES THE RAPPAHANNOCK TONIGHT ABSOLUTE SILENCE IS IMPERATIVE NOW
sigaba
sigaba
machine
{ "type": "seed", "value": "FREEDOM" }
expert
en
75
75
cipher_museum
2.0
public
null
null
cda-0015260
12 15 11 45 21 34 42 44 24 43 44 23 15 42 15 13 24 35 42 34 13 11 31 34 21 51 24 22 15 33 15 42 15 11 33 14 14 15 13 42 54 35 44 43 24 44 43 15 31 21
12 15 11 45 21 34 42 44 24 43 44 23 15 42 15 13 24 35 42 34 13 11 31 34 21 51 24 22 15 33 15 42 15 11 33 14 14 15 13 42 54 35 44 43 24 44 43 15 31 21
BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF
polybius
polybius
null
{}
medium
en
50
50
synthetic_educational
null
null
[ "pair_decode", "frequency_analysis" ]
Polybius square: 5×5 grid maps letters to two-digit row-column pairs.
chaocipher-v3-0509
CXNIZNHGQDKJTPDAUSYNCEAETLWJHKYGBHPMHFRTBRURSIVDCBHHZOJOVMCHQCEXSBJELJTZTDDYEBGFWVNNBHFQTSTTBMXZUWXCXDINKWZCJTIGVJGZHFDCLSFMZWEQOMDIBUFNZNMIAGQDNOMAZANFGTWFDMIXTARHCWRFT
CXNIZNHGQDKJTPDAUSYNCEAETLWJHKYGBHPMHFRTBRURSIVDCBHHZOJOVMCHQCEXSBJELJTZTDDYEBGFWVNNBHFQTSTTBMXZUWXCXDINKWZCJTIGVJGZHFDCLSFMZWEQOMDIBUFNZNMIAGQDNOMAZANFGTWFDMIXTARHCWRFT
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
chaocipher
chaocipher
machine
{ "type": "keyword", "value": "TRIUMPH" }
advanced
en
169
169
cipher_museum
2.0
public
null
null
cda-0018524
- .... . / .- .-. -.-. .... .. - . -.-. - ..- .-. . / ... .... --- ..- .-.. -.. / -- .- -.- . / -- .. ... ..- ... . / .... .- .-. -.. . .-. / -- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... -.-- / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.--
- .... . / .- .-. -.-. .... .. - . -.-. - ..- .-. . / ... .... --- ..- .-.. -.. / -- .- -.- . / -- .. ... ..- ... . / .... .- .-. -.. . .-. / -- --- -.. . .-. -. / . -. -.-. .-. -.-- .--. - .. --- -. / .. ... / -. --- - / -... .-. --- -.- . -. / -... -.-- / .-.. . - - . .-. / ..-. .-. . --.- ..- . -. -.-. -.--
THE ARCHITECTURE SHOULD MAKE MISUSE HARDER MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY
morse_code
morse_code
null
{}
hard
en
81
81
synthetic_educational
null
null
[ "symbol_decode", "frequency_analysis" ]
Morse code: dots and dashes; word-separated by / symbol.
cda-0019998
68 66 20 68 61 36 82 29 52 69 11 82 61 20 43 80 82 95 82 80 61 50 29 25 66 36 82 68 57 65 36 68 20 82 66 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 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68...
68 66 20 68 61 36 82 29 52 69 11 82 61 20 43 80 82 95 82 80 61 50 29 25 66 36 82 68 57 65 36 68 20 82 66 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 52 68 82 61 68 80 61 36 50 76 66 82 11 66 36 82 68 57 65 36 68...
ATBASH ENCODES BY REVERSING THE ALPHABET POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS
wallis_cipher
wallis_cipher
null
{}
hard
en
126
126
synthetic_educational
null
null
[ "number_substitution_decode", "frequency_analysis" ]
Wallis cipher: each letter mapped to a unique two-digit number from a fixed table.
kl7-v3-0205
YHYJMJRZKFYPRIFWLVMBEEHZGLTESYHYSDVTCVRDTMCMTDOZOHFQSEDMCZTGDHSDBTSKVHDRYKJNMBBOFOUAZSSKWLOYXRMRTRKORFOKYBXEMQTXJRLZJZRCNLXAGNCGFODCUCYZQRNGASBFTTROBYUWTEUGCIYUEZFV
YHYJMJRZKFYPRIFWLVMBEEHZGLTESYHYSDVTCVRDTMCMTDOZOHFQSEDMCZTGDHSDBTSKVHDRYKJNMBBOFOUAZSSKWLOYXRMRTRKORFOKYBXEMQTXJRLZJZRCNLXAGNCGFODCUCYZQRNGASBFTTROBYUWTEUGCIYUEZFV
IN THE SEVENTEENTH CENTURY ISAAC NEWTON SYNTHESIZED THE WORK OF COPERNICUS GALILEO AND KEPLER INTO A UNIFIED THEORY OF GRAVITATION THAT EXPLAINED BOTH THE FALL OF APPLES AND THE ORBITS OF PLANETS
kl7
kl7
machine
{ "type": "seed", "value": "LIBERTY" }
expert
en
164
164
cipher_museum
2.0
public
null
null
cda-0002521
AAIEISNRDHTSIHATSGOTRFNMOCYNCBCHHBRTIEEEIAEASPLDEAABNWEFATEONPBLTSRAUTSLCSTTLOAEPYOS
AAIEISNRDHTSIHATSGOTRFNMOCYNCBCHHBRTIEEEIAEASPLDEAABNWEFATEONPBLTSRAUTSLCSTTLOAEPYOS
A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS
stager_route
stager_route
null
{ "cols": 7 }
hard
en
84
84
synthetic_educational
null
null
[ "column_count_search", "route_pattern_search" ]
Route (Stager) cipher: write into rectangle, read via alternating column route.
stager-route-v2-0109
WREEISALAATEFFTUOMSHNNRIOTMOPSCIOTSSEETTEOEFNOSPTEHRTISLXXYDNUTEJHEENGADFNHHEETTSMEGMAEUWHDTOPXXUSEEEODSLBRNETHARREETEAREELIUGRRONOBXXLLTFELEPNESRITUIPFORVNECASDGRODCOIEIX
WREEISALAATEFFTUOMSHNNRIOTMOPSCIOTSSEETTEOEFNOSPTEHRTISLXXYDNUTEJHEENGADFNHHEETTSMEGMAEUWHDTOPXXUSEEEODSLBRNETHARREETEAREELIUGRRONOBXXLLTFELEPNESRITUIPFORVNECASDGRODCOIEIX
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
stager_route
stager_route
transposition
{ "type": "integer", "value": 9 }
expert
en
171
171
cipher_museum
2.0
public
null
null
double-transposition-032
RSNPAEYEEUTHTKIINMTAWRIENGYEMHOEMREKNNSUVAERI
RSNPAEYEEUTHTKIINMTAWRIENGYEMHOEMREKNNSUVAERI
NEVER INTERRUPT YOUR ENEMY WHEN HE IS MAKING A MISTAKE
double_transposition
double_transposition
transposition
{ "key1": "FIRST", "key2": "SECOND" }
advanced
en
45
45
cipher_museum
0.2
public
null
null
cda-0018865
THEFO URSQZ ARECI PHERU SESTX OKEYW ORDPZ LYBIU SSQUZ RESAM ODELX ANCLA SSIFY PATTE RNSBU TITCA NALSO BEWRO NGDDX
THEFO URSQZ ARECI PHERU SESTX OKEYW ORDPZ LYBIU SSQUZ RESAM ODELX ANCLA SSIFY PATTE RNSBU TITCA NALSO BEWRO NGDDX
THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG
commercial_code
commercial_code
null
{}
hard
en
95
95
synthetic_educational
null
null
[ "codebook_frequency", "five_letter_group_analysis" ]
Commercial code: five-letter groups from a codebook, often ending in X or Z.
jn25-v2-0279
21232 21249 21248 21249 21242 21235 21236 21249 21256 21239 21235 21246 21246
21232 21249 21248 21249 21242 21235 21236 21249 21256 21239 21235 21246 21246
HONOR ABOVE ALL
jn25
jn25
codebook
{ "type": "additive", "value": "11235" }
expert
en
65
77
cipher_museum
2.0
public
null
null
cda-0004613
DPPR XHUU NDCP AOTJ ITSM CJJT GSHF PFVD VAQX XQDR EJUE URUI WIWR ITED RWKC MJVH QNYR YGZX LN
DPPR XHUU NDCP AOTJ ITSM CJJT GSHF PFVD VAQX XQDR EJUE URUI WIWR ITED RWKC MJVH QNYR YGZX LN
DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS
trithemius
trithemius
null
{}
medium
en
74
74
synthetic_educational
null
null
[ "progressive_shift_detection", "frequency_analysis" ]
Trithemius: progressive Caesar (shift = letter position); no key needed.
scytale-v3-0556
GAIYXLISLXXXXRVTEPANALXXXX
GAIYXLISLXXXXRVTEPANALXXXX
GRAVITY EXPLAINS ALL
scytale
scytale
transposition
{ "type": "integer", "value": 13 }
intermediate
en
26
26
cipher_museum
2.0
public
null
null
wheatstone-v2-0350
HBHERAPSACUETBKSHAMAUMHAVAPQUKBVAKEPJAEHHAUPASMHUQFUQSAMLUPSLUQHAQDLJJAQHERPAQ
HBHERAPSACUETBKSHAMAUMHAVAPQUKBVAKEPJAEHHAUPASMHUQFUQSAMLUPSLUQHAQDLJJAQHERPAQ
LA LIBERTE GUIDANT LE PEUPLE VERS UN AVENIR MEILLEUR ET PLUS JUSTE POUR TOUS LES HOMMES LIBRES
wheatstone
wheatstone
polygraphic
{ "type": "keyword", "value": "BRITAIN" }
advanced
en
78
78
cipher_museum
2.0
public
null
null
jefferson-disk-v2-0168
HFIOIYLUGPLESZUIQYLUGIXXMXMZVZRDYYUZFZSIUUMUIMIBRUKDEUIXUKKDYOIVDFADWOJBDDIHK
HFIOIYLUGPLESZUIQYLUGIXXMXMZVZRDYYUZFZSIUUMUIMIBRUKDEUIXUKKDYOIVDFADWOJBDDIHK
THE LORD IS MY SHEPHERD I SHALL NOT WANT HE MAKETH ME LIE DOWN IN GREEN PASTURES BY STILL WATERS
jefferson_disk
jefferson_disk
disk
{ "type": "disk_order", "value": "6,1,4,2,5,3" }
expert
en
77
77
cipher_museum
2.0
public
null
null
rail-fence-v3-0206
TOGEIIRAROOOHRJOETSMNTEAAETOECUFRWREPETTATCDNTNCHOFNYLFTELMNCTHESISEHIETMEANDECHDAATHERCFOWCYTDIBZADEHTFRNTBGRGIIFTEROLCBIMOHADOEHTRUTEETTENUBIBMGRSTNERVAOHNHTUOEOGE
TOGEIIRAROOOHRJOETSMNTEAAETOECUFRWREPETTATCDNTNCHOFNYLFTELMNCTHESISEHIETMEANDECHDAATHERCFOWCYTDIBZADEHTFRNTBGRGIIFTEROLCBIMOHADOEHTRUTEETTENUBIBMGRSTNERVAOHNHTUOEOGE
THE MANHATTAN PROJECT BROUGHT TOGETHER THE GREATEST SCIENTIFIC MINDS OF THE TWENTIETH CENTURY IN A RACE TO BUILD THE ATOMIC BOMB BEFORE NAZI GERMANY COULD DO SO THE EFFORT CHANGED THE WORLD FOREVER
rail_fence
rail_fence
transposition
{ "type": "integer", "value": 8 }
intermediate
en
165
165
cipher_museum
2.0
public
null
null
cda-0009619
BO CIKJOG FNQIGU FQQNLJT B NLSFBT IZODVLTO UQ HFDI NHYUFT RUFO URZSDG WTPMU DQMPY LSEFRHSEFPW AFSKINDBVLTO UJH NOEGA TG DQLSDJFHSDF KV F VTGIZM DNXJ
BO CIKJOG FNQIGU FQQNLJT B NLSFBT IZODVLTO UQ HFDI NHYUFT RUFO URZSDG WTPMU DQMPY LSEFRHSEFPW AFSKINDBVLTO UJH NOEGA TG DQLSDJFHSDF KV F VTGIZM DNXJ
AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION THE INDEX OF COINCIDENCE IS A USEFUL CLUE
gronsfeld
gronsfeld
null
{ "key": "11235" }
hard
en
125
125
synthetic_educational
null
null
[]
alberti-disk-v2-0705
WPJXQPOZKYVEMRBBJPTJDPOQTNBUTHDYBYSHRGGUSRBZAONIQEUUXJNSSPVDWYPLEPRVIXJSNKVDX
WPJXQPOZKYVEMRBBJPTJDPOQTNBUTHDYBYSHRGGUSRBZAONIQEUUXJNSSPVDWYPLEPRVIXJSNKVDX
THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY
alberti_disk
alberti_disk
disk
{ "type": "integer", "value": 14 }
expert
en
77
77
cipher_museum
2.0
public
null
null
adfgvx-v2-0522
AAVDFDFAVDAFAAVDGGDFFDGGAF
AAVDFDFAVDAFAAVDGGDFFDGGAF
AWAIT MY SIGNAL
adfgvx
adfgvx
fractionation
{ "polybius": "KAISER", "columnar": "BERLIN" }
advanced
en
26
26
cipher_museum
2.0
public
null
null
jefferson-disk-v3-0250
DKQVUIZCINNXRKGFGHFUOOSXYZGYGWZUSOWJUDPTSSZPBFPIOEQYWRADQFKLZHITGHOZGYQHFJK
DKQVUIZCINNXRKGFGHFUOOSXYZGYGWZUSOWJUDPTSSZPBFPIOEQYWRADQFKLZHITGHOZGYQHFJK
THE SPEED OF LIGHT IS THE ULTIMATE SPEED LIMIT IN THE UNIVERSE EINSTEIN DEMONSTRATED THIS
jefferson_disk
jefferson_disk
disk
{ "type": "disk_order", "value": "1,3,5,2,4,6" }
expert
en
75
75
cipher_museum
2.0
public
null
null
joseon-yeokhak-v3-0063
WVLLIGBPMITTQMLNWZKMATIVLMLWVNQDMVWZUIVLGJMIKPMAQVBPMOZMIBMABAMIJWZVMQVDIAQWV
WVLLIGBPMITTQMLNWZKMATIVLMLWVNQDMVWZUIVLGJMIKPMAQVBPMOZMIBMABAMIJWZVMQVDIAQWV
ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION
joseon_yeokhak
joseon_yeokhak
substitution
{ "type": "keyword", "value": "SEOUL" }
beginner
en
77
77
cipher_museum
2.0
public
null
null
adfgvx-v2-0097
GGXVVGFVFGVFDDVDDDGGDGADFGXVGFFAADFAGFADGAAGGGDDGGGGGFFAFDGFDDDGAVDFGAVDAVFAVFDVFVDDFAGAGGFFGDAFDAAADADGAADADAFGAFAADAGFGGGAGDFFADDAAAFDGGFFVFVDADFXAGDVAAFXVGVVFVGGAGFF
GGXVVGFVFGVFDDVDDDGGDGADFGXVGFFAADFAGFADGAAGGGDDGGGGGFFAFDGFDDDGAVDFGAVDAVFAVFDVFVDDFAGAGGFFGDAFDAAADADGAADADAFGAFAADAGFGGGAGDFFADDAAAFDGGFFVFVDADFXAGDVAAFXVGVVFVGGAGFF
VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT
adfgvx
adfgvx
fractionation
{ "polybius": "PALACE", "columnar": "BATTLE" }
advanced
en
168
168
cipher_museum
2.0
public
null
null
playfair-v3-0369
GNLBFQPVAFLCGPVFFANDPHYLAFLOFCPVDBTANVPDLYFAKBINDMAFNVHKDNNGQBCDBCSTOPYNKLIYTFVOYIICNVTPCEQBDYRCLQTYKBONPHEUITCKTBTLQPSFBCSTCIPMTBIFPYSTSBCALUYNKRTPYRVBEUBFBCEMLQ
GNLBFQPVAFLCGPVFFANDPHYLAFLOFCPVDBTANVPDLYFAKBINDMAFNVHKDNNGQBCDBCSTOPYNKLIYTFVOYIICNVTPCEQBDYRCLQTYKBONPHEUITCKTBTLQPSFBCSTCIPMTBIFPYSTSBCALUYNKRTPYRVBEUBFBCEMLQ
FOR I KNOW THE THOUGHTS THAT I THINK TOWARD YOU SAITH THE LORD THOUGHTS OF PEACE AND NOT OF EVIL TO GIVE YOU AN EXPECTED END THEN SHALL YE CALL UPON ME AND YE SHALL GO AND PRAY UNTO ME AND I WILL HEARKEN
playfair
playfair
polygraphic
{ "type": "keyword", "value": "LIBERTY" }
intermediate
en
162
162
cipher_museum
2.0
public
null
null