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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
fractionated-morse-v2-0172 | EPRSLARRHSHSKBPRSLKFABTPREUGALDQRSTWLRBFVKSHGMKLFUTVQWUEWLSTBRFWUTADQPAREUB | EPRSLARRHSHSKBPRSLKFABTPREUGALDQRSTWLRBFVKSHGMKLFUTVQWUEWLSTBRFWUTADQPAREUB | WHAT IS IN A NAME THAT WHICH WE CALL A ROSE BY ANY OTHER NAME WOULD SMELL AS SWEET | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v2-0446 | LRRRESNEEAOSHNOHGLRARUEEHRAOEECSSEEETYEDDPKNSTIFSEBAEEGDPETLDSTEABAUAHLASHMM | LRRRESNEEAOSHNOHGLRARUEEHRAOEECSSEEETYEDDPKNSTIFSEBAEEGDPETLDSTEABAUAHLASHMM | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "WARRIOR"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0258 | GUDVIBBSTKIBS | GUDVIBBSTKIBS | THE PASS IS HELD | sigaba | sigaba | machine | {
"type": "seed",
"value": "FREEDOM"
} | expert | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
vigenere-v2-0961 | YIUYIXGDESMKMCYQOXYXJLVHYRZCZNNEKACXIUMTLYYLJXJVFLZBGKXPDISIKKGLVHPVLYYLDMIVJPA | YIUYIXGDESMKMCYQOXYXJLVHYRZCZNNEKACXIUMTLYYLJXJVFLZBGKXPDISIKKGLVHPVLYYLDMIVJPA | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
cda-0003338 | FNLAACSINRATDETUSCAGARTRCYNLISTCSCEINEFTILENYSEYSRWPUUIMHRFTROHPONDPEQAIEEHBTPALTFLBRERFEDTLUNSVAESIHPEOEEETROVRESFEACEKRTOEETARTAIECIECIX | FNLAACSINRATDETUSCAGARTRCYNLISTCSCEINEFTILENYSEYSRWPUUIMHRFTROHPONDPEQAIEEHBTPALTFLBRERFEDTLUNSVAESIHPEOEEETROVRESFEACEKRTOEETARTAIECIECIX | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS SUBSTITUTION CIPHERS MAP EACH LETTER TO A DIFFERENT LETTER BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | scytale | scytale | null | {
"cols": 6
} | hard | en | 138 | 138 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
bazeries-076 | EPRKEQIPLNKCQSKEJE | EPRKEQIPLNKCQSKEJE | SEND REINFORCEMENTS | bazeries | bazeries | transposition | {
"type": "integer",
"value": 13
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
confederate-vigenere-179 | LLGRVMGJYRVBKSHMMMSPKDTHJXCEGXLSVYILLEVVMMAWCDEMLITFJEAJGRRWVICKLTJSCUIBLLGIXHKEHVXRGVVFVNARJVRVWMVZWTKYDAIVLSHZRJMMTPAAAGJTEGGRPFEVUSWEXUWRGXPXUXGU | LLGRVMGJYRVBKSHMMMSPKDTHJXCEGXLSVYILLEVVMMAWCDEMLITFJEAJGRRWVICKLTJSCUIBLLGIXHKEHVXRGVVFVNARJVRVWMVZWTKYDAIVLSHZRJMMTPAAAGJTEGGRPFEVUSWEXUWRGXPXUXGU | 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 | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 148 | 148 | cipher_museum | 0.2 | public | null | null |
zimmermann-v2-0060 | 99999 90001 90011 90014 90014 90003 99998 99999 90018 90022 90004 90000 90019 99998 00002 99999 90019 90004 90000 90017 90018 99998 00092 00015 00037 99999 90008 99998 00115 00027 00008 00000 99999 90003 90004 90005 90004 90013 90018 90004 99998 00001 00083 99999 90008 90018 90011 90000 90013 90003 99998 99999 90013 90... | 99999 90001 90011 90014 90014 90003 99998 99999 90018 90022 90004 90000 90019 99998 00002 99999 90019 90004 90000 90017 90018 99998 00092 00015 00037 99999 90008 99998 00115 00027 00008 00000 99999 90003 90004 90005 90004 90013 90018 90004 99998 00001 00083 99999 90008 90018 90011 90000 90013 90003 99998 99999 90013 90... | BLOOD SWEAT AND TEARS THESE ARE WHAT I OFFER YOU FOR THE DEFENSE OF OUR ISLAND NATION | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 295 | 353 | cipher_museum | 2.0 | public | null | null |
sigaba-v3-0092 | UXFNKNXDHDMFSNMQWXNRTVAQBBTTDCYRORYFCOKOPNTPBHGZEQNZKTRFHEGGDXENPWDYWZMWTFNLLQMMWMBRCCLSLZCZZMTKENXNGTQYHSWJLJTYGRQZRXBPKTKHLKUJPXWCEEITDHDXFYKLFXRQWJNMXBBVJXIOYYBWVTH | UXFNKNXDHDMFSNMQWXNRTVAQBBTTDCYRORYFCOKOPNTPBHGZEQNZKTRFHEGGDXENPWDYWZMWTFNLLQMMWMBRCCLSLZCZZMTKENXNGTQYHSWJLJTYGRQZRXBPKTKHLKUJPXWCEEITDHDXFYKLFXRQWJNMXBBVJXIOYYBWVTH | WHEN IN THE COURSE OF HUMAN EVENTS IT BECOMES NECESSARY FOR ONE PEOPLE TO DISSOLVE THE POLITICAL BANDS WHICH HAVE CONNECTED THEM WITH ANOTHER THEY SHOULD DECLARE THE CAUSES WHICH IMPEL THE SEPARATION | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 167 | 167 | cipher_museum | 2.0 | public | null | null |
bazeries-v3-0473 | BRKBLQKFXQBKKLXHIYORHAQYOHBQKLFJSARLGVLKDKFTHEYHHLQPGGKHEATFLBQFOHVHKFK | BRKBLQKFXQBKKLXHIYORHAQYOHBQKLFJSARLGVLKDKFTHEYHHLQPGGKHEATFLBQFOHVHKFK | TO INFINITY AND BEYOND THE FRONTIER OF HUMAN KNOWLEDGE CALLS TO EACH GENERATION ANEW | bazeries | bazeries | transposition | {
"type": "integer",
"value": 53
} | advanced | en | 71 | 71 | cipher_museum | 2.0 | public | null | null |
cda-0017683 | . .. . ..... . . .... ..... .. . ... .... .... .. .... .... .. .... .... ... .... .... .. ... . ..... .... .. . ..... . ... .. .... ... ..... .... .. ... .... . ... . . ... . ... .... .. . ..... . .. .... .. .. . ..... ... ... . ..... .... .. . ..... . . ... ... . .... . .... . ....... | . .. . ..... . . .... ..... .. . ... .... .... .. .... .... .. .... .... ... .... .... .. ... . ..... .... .. . ..... . ... .. .... ... ..... .... .. ... .... . ... . . ... . ... .... .. . ..... . .. .... .. .. . ..... ... ... . ..... .... .. . ..... . . ... ... . .... . .... . ....... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE INDEX OF COINCIDENCE IS A USEFUL CLUE | tap_code | tap_code | null | {} | hard | en | 139 | 139 | 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. |
commercial-code-v3-0076 | SEBAB ZUZUZ FAZUZ SAZUZ GAZUZ XAZUZ XUZUZ LABAB ZUZUZ TAZUZ WAZUZ SAZUZ HAZUZ LAZUZ ZAZUZ XUZUZ ZUZUZ BAZUZ XUZUZ ZUZUZ QAZUZ BAZUZ RAZUZ XUZUZ FABAB ZUZUZ JAZUZ BAZUZ LAZUZ RAZUZ XUZUZ BABAB ZUZUZ DEZUZ KAZUZ SAZUZ PAZUZ GAZUZ XUZUZ ZUZUZ DEZUZ SAZUZ WAZUZ PAZUZ FAZUZ XUZUZ DABAB ZUZUZ GEZUZ GAZUZ ZAZUZ XUZUZ ZUZUZ PA... | SEBAB ZUZUZ FAZUZ SAZUZ GAZUZ XAZUZ XUZUZ LABAB ZUZUZ TAZUZ WAZUZ SAZUZ HAZUZ LAZUZ ZAZUZ XUZUZ ZUZUZ BAZUZ XUZUZ ZUZUZ QAZUZ BAZUZ RAZUZ XUZUZ FABAB ZUZUZ JAZUZ BAZUZ LAZUZ RAZUZ XUZUZ BABAB ZUZUZ DEZUZ KAZUZ SAZUZ PAZUZ GAZUZ XUZUZ ZUZUZ DEZUZ SAZUZ WAZUZ PAZUZ FAZUZ XUZUZ DABAB ZUZUZ GEZUZ GAZUZ ZAZUZ XUZUZ ZUZUZ PA... | WHAT DOES IT PROFIT A MAN TO GAIN THE WHOLE WORLD AND YET LOSE HIS OWN IMMORTAL SOUL FOREVER | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 445 | 533 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-072 | 0134562657604202824522 | 0134562657604202824522 | CIPHER KEY CHANGED | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "CIPHERMUS"
} | advanced | en | 22 | 22 | cipher_museum | 0.2 | public | null | null |
cda-0020089 | 813 851 853 842 851 999 807 844 852 851 812 807 858 826 843 840 999 801 840 809 999 811 813 857 812 808 859 826 842 840 999 802 852 814 999 816 861 840 809 800 837 812 841 857 802 834 999 859 842 999 854 812 807 861 851 813 999 856 874 854 857 812 836 855 999 858 822 812 999 830 800 856 824 854 832 824 999 812 869 800 ... | 813 851 853 842 851 999 807 844 852 851 812 807 858 826 843 840 999 801 840 809 999 811 813 857 812 808 859 826 842 840 999 802 852 814 999 816 861 840 809 800 837 812 841 857 802 834 999 859 842 999 854 812 807 861 851 813 999 856 874 854 857 812 836 855 999 858 822 812 999 830 800 856 824 854 832 824 999 812 869 800 ... | ERROR CORRECTION AND DETECTION ARE FUNDAMENTAL TO SECURE SYSTEMS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT FAIL CLOSED IS A POSTURE NOT A SLOGAN | culper_ring | culper_ring | null | {} | hard | en | 140 | 140 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
fialka-101 | UCUESMRSMKIAXUUESDWAAGSCWJJYNELZDZNZJWZBDNXQPYH | UCUESMRSMKIAXUUESDWAAGSCWJJYNELZDZNZJWZBDNXQPYH | ASK NOT WHAT YOUR COUNTRY CAN DO FOR YOU BUT WHAT YOU CAN DO | fialka | fialka | machine | {
"type": "seed",
"value": "CIPHER"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
wallis-cipher-v3-0089 | 90 63 24 81 91 90 56 34 37 53 86 14 55 33 42 85 91 90 63 54 60 28 56 43 91 90 89 34 91 90 10 61 54 91 90 76 87 55 23 56 40 81 10 33 48 87 52 91 90 82 28 31 72 33 37 49 60 55 46 91 90 42 31 91 90 72 81 48 10 89 53 28 85 22 91 90 55 61 54 91 90 50 63 42 21 25 37 10 91 90 89 31 91 90 55 45 42 91 90 52 87 53 39 56 91 90 14... | 90 63 24 81 91 90 56 34 37 53 86 14 55 33 42 85 91 90 63 54 60 28 56 43 91 90 89 34 91 90 10 61 54 91 90 76 87 55 23 56 40 81 10 33 48 87 52 91 90 82 28 31 72 33 37 49 60 55 46 91 90 42 31 91 90 72 81 48 10 89 53 28 85 22 91 90 55 61 54 91 90 50 63 42 21 25 37 10 91 90 89 31 91 90 55 45 42 91 90 52 87 53 39 56 91 90 14... | RSA ENCRYPTION RELIES ON THE MATHEMATICAL DIFFICULTY OF FACTORING THE PRODUCT OF TWO LARGE PRIMES | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 226 | 338 | cipher_museum | 2.0 | public | null | null |
cda-0019722 | QPCH ASZS CBIO NINP BJZR HVGW NRUQ MIWY URFG ODFZ YUIQ VUXD LDVI VNWN CYVF TWTW KJYD GSVS CAEG CAUZ PHWW | QPCH ASZS CBIO NINP BJZR HVGW NRUQ MIWY URFG ODFZ YUIQ VUXD LDVI VNWN CYVF TWTW KJYD GSVS CAEG CAUZ PHWW | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY | one_time_pad | one_time_pad | null | {} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
m209-v3-0036 | YNBGTNDAENTEWQLETS | YNBGTNDAENTEWQLETS | GRAVITY EXPLAINS ALL | m209 | m209 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
rail-fence-v3-0563 | MEYSLSRAAGEELRCEDCEEVI | MEYSLSRAAGEELRCEDCEEVI | MESSAGE RECEIVED CLEARLY | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 12
} | intermediate | en | 22 | 22 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v3-0188 | HJQHAHFWMARFALDQRDAPRADVBWLMAREUTPHJQAMTQQHRLLDVHTPWUOVQRARFWMAIQAPAVXKBBWLTQWAHSHDQKOQBE | HJQHAHFWMARFALDQRDAPRADVBWLMAREUTPHJQAMTQQHRLLDVHTPWUOVQRARFWMAIQAPAVXKBBWLTQWAHSHDQKOQBE | NO PERSON SHALL BE HELD TO ANSWER FOR A CAPITAL CRIME UNLESS ON PRESENTMENT OF A GRAND JURY | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 89 | 89 | cipher_museum | 2.0 | public | null | null |
affine-v2-1275 | CREXB CPV USBDVXCU | CREXB CPV USBDVXCU | ABORT AND WITHDRAW | affine | affine | substitution | {
"a": 15,
"b": 2
} | beginner | en | 16 | 18 | cipher_museum | 2.0 | public | null | null |
slidex-v2-0108 | DLVHQUVCYPMVROTNSWQADLVHLXSYPWEGDOANADPWJEDCAFWRZPSCJKQILLCZJPXGZIFRBGPUSEYHVHEDUQGUNDKGCOLKXENTSCUKAMVUGUJKVBODQNSYRWSCKMAMUYLSJKZERUXVFSPDZUZN | DLVHQUVCYPMVROTNSWQADLVHLXSYPWEGDOANADPWJEDCAFWRZPSCJKQILLCZJPXGZIFRBGPUSEYHVHEDUQGUNDKGCOLKXENTSCUKAMVUGUJKVBODQNSYRWSCKMAMUYLSJKZERUXVFSPDZUZN | 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 | slidex | slidex | transposition | {
"type": "keyword",
"value": "BLETCHLEY"
} | advanced | en | 144 | 144 | cipher_museum | 2.0 | public | null | null |
commercial-code-042 | ZUZUZ DAZUZ WAZUZ GEZUZ TAZUZ ZAZUZ SAZUZ JAZUZ WAZUZ BAZUZ TAZUZ KAZUZ GEZUZ XUZUZ HABAB BABAB ZUZUZ TAZUZ WAZUZ BAZUZ DAZUZ ZAZUZ LAZUZ DAZUZ GAZUZ XUZUZ CABAB ZUZUZ XAZUZ GAZUZ DAZUZ BEZUZ WAZUZ LAZUZ RAZUZ JAZUZ XUZUZ ZUZUZ DAZUZ SAZUZ QAZUZ QAZUZ BEZUZ RAZUZ LAZUZ DAZUZ BAZUZ ZAZUZ LAZUZ SAZUZ RAZUZ XAZUZ XUZUZ ZA... | ZUZUZ DAZUZ WAZUZ GEZUZ TAZUZ ZAZUZ SAZUZ JAZUZ WAZUZ BAZUZ TAZUZ KAZUZ GEZUZ XUZUZ HABAB BABAB ZUZUZ TAZUZ WAZUZ BAZUZ DAZUZ ZAZUZ LAZUZ DAZUZ GAZUZ XUZUZ CABAB ZUZUZ XAZUZ GAZUZ DAZUZ BEZUZ WAZUZ LAZUZ RAZUZ JAZUZ XUZUZ ZUZUZ DAZUZ SAZUZ QAZUZ QAZUZ BEZUZ RAZUZ LAZUZ DAZUZ BAZUZ ZAZUZ LAZUZ SAZUZ RAZUZ XAZUZ XUZUZ ZA... | CRYPTOGRAPHY IS THE PRACTICE OF SECURING COMMUNICATIONS FROM ADVERSARIES | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 335 | 401 | cipher_museum | 0.2 | public | null | null |
typex-v3-0163 | ONKBZXDQJBCNOROBKDMZPEJLBQCBXIMOCVBRBYWTTAKBGRUMYUSHFBRTBPWHUPBCFRBCUCOGLT | ONKBZXDQJBCNOROBKDMZPEJLBQCBXIMOCVBRBYWTTAKBGRUMYUSHFBRTBPWHUPBCFRBCUCOGLT | THE THIN RED LINE STOOD FIRM AT BALACLAVA AS THE RUSSIAN CAVALRY CHARGED ACROSS THE PLAIN | typex | typex | machine | {
"type": "keyword",
"value": "BRITAIN"
} | expert | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
cda-0005297 | TINUHEODTIKNHETSEXIEOMEGEDEEIONNEAYTFMSSNFCCSTLHRATTDCIETEEX | TINUHEODTIKNHETSEXIEOMEGEDEEIONNEAYTFMSSNFCCSTLHRATTDCIETEEX | THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | scytale | scytale | null | {
"cols": 5
} | medium | en | 60 | 60 | synthetic_educational | null | null | [
"column_count_search",
"anagram_recovery"
] | Scytale: Spartan cylinder cipher — wrap text around a rod of fixed diameter. |
alberti-disk-v2-0515 | CUBRIXGHYWPCJR | CUBRIXGHYWPCJR | TARGET ACQUIRED | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 11
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0014443 | AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA AAABB ABAAB AABAA BABBA ABABA AABAA ABBAA AABBA BAABA AABBB AABAB BAAAA ABBAB ABABB BAAAB BAABA AAAAA BAABA ABAAA BAAAB BAABA ABAAA AAABA BAAAB BAABA AABBB AABAA ABAAB AAAAA BAAAB ABAAA BAAAB ABAAB ABAAA AABAA BABAB AAAAA AB... | AABAB BAAAA ABAAA AABAA AAABB ABABB AAAAA ABBAA AABAA BAAAB BAABA ABAAA ABABB AAAAA BAABA AABAA AAABB ABAAB AABAA BABBA ABABA AABAA ABBAA AABBA BAABA AABBB AABAB BAAAA ABBAB ABABB BAAAB BAABA AAAAA BAABA ABAAA BAAAB BAABA ABAAA AAABA BAAAB BAABA AABBB AABAA ABAAB AAAAA BAAAB ABAAA BAAAB ABAAB ABAAA AABAA BABAB AAAAA AB... | FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS THE KASISKI EXAMINATION FINDS REPEATED TRIGRAMS IN CIPHERTEXT | bacon_cipher | bacon_cipher | null | {} | hard | en | 470 | 470 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
venona-pad-reuse-v2-0274 | GZRMAKMISGKO6YBA | GZRMAKMISGKO6YBA | DIVIDE AND CONQUER | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "FREEDOM"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
typex-v3-0290 | UVWLLFJXYVCQBITIXAXKEAIKGZCKRNAYNVVJHKFTDHMQVAZVWKLCOKTIMPBUBHYXAHOWATFMGLMJDLTRTINVQ | UVWLLFJXYVCQBITIXAXKEAIKGZCKRNAYNVVJHKFTDHMQVAZVWKLCOKTIMPBUBHYXAHOWATFMGLMJDLTRTINVQ | CONGRESS SHALL MAKE NO LAW RESPECTING AN ESTABLISHMENT OF RELIGION OR PROHIBITING THE FREE EXERCISE | typex | typex | machine | {
"type": "keyword",
"value": "EMPIRE"
} | expert | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
two-square-v3-0200 | PERASPKOAAEEQCRA | PERASPKOAAEEQCRA | PER ASPERA AD ASTRA | two_square | two_square | polygraphic | {
"key1": "TRIUMPH",
"key2": "JUSTICE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0605 | ENGTESOTRDTPOAHDBNIETAHSEOTECUEESTRLTITETRVEOTTESYSOSOTWDEUTTTNETEEEDNAHIARHS | ENGTESOTRDTPOAHDBNIETAHSEOTECUEESTRLTITETRVEOTTESYSOSOTWDEUTTTNETEEEDNAHIARHS | THE POWERS NOT DELEGATED TO THE UNITED STATES BY THE CONSTITUTION ARE RESERVED TO THE STATES | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "LIBERTY"
} | intermediate | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
fractionated-morse-v2-0607 | MJRCLDEMSJQVALTPSCJQEVGEEURDWMCTWWMSMCTWEVXDPPEHQXFEJRJQVVEMLCSMSSGJXTPNTXSKVPETQALLTALGDWNEJWC | MJRCLDEMSJQVALTPSCJQEVGEEURDWMCTWWMSMCTWEVXDPPEHQXFEJRJQVVEMLCSMSSGJXTPNTXSKVPETQALLTALGDWNEJWC | THE AMBASSADOR HAS RECEIVED OUR MOST URGENT DISPATCHES AND AWAITS INSTRUCTIONS FROM LONDON HQ | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 95 | 95 | cipher_museum | 2.0 | public | null | null |
scytale-275 | IESHAINMTYSSWOOSTTARTIHORAHCROTLEAENHIPLEE | IESHAINMTYSSWOOSTTARTIHORAHCROTLEAENHIPLEE | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | scytale | scytale | transposition | {
"type": "integer",
"value": 6
} | intermediate | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0050 | GDGGDGAGGFXXFDGGXFGXAGFXXDDDDDDAGDGDAGGGGDAXFFGAFFXAGXAGDGFGDGDDDFFDXGXAFDFFGFFGGFGAXGGXAGAAFFDFFGFFDFFDAFFGGAFFDFAGDDDGAGXXGXXGXDAAXFXXXXADFGDGGFDD | GDGGDGAGGFXXFDGGXFGXAGFXXDDDDDDAGDGDAGGGGDAXFFGAFFXAGXAGDGFGDGDDDFFDXGXAFDFFGFFGGFGAXGGXAGAAFFDFFGFFDFFDAFFGGAFFDFAGDDDGAGXXGXXGXDAAXFXXXXADFGDGGFDD | GOOD NIGHT GOOD NIGHT PARTING IS SUCH SWEET SORROW THAT I SHALL SAY GOOD NIGHT TILL MORROW | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 148 | 148 | cipher_museum | 2.0 | public | null | null |
cda-0020393 | .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . | .- / ... - .-. --- -. --. / -.-. .-.. .- .. -- / -. . . -.. ... / ... - .-. --- -. --. / . ...- .. -.. . -. -.-. . | A STRONG CLAIM NEEDS STRONG EVIDENCE | morse_code | morse_code | null | {} | medium | en | 31 | 31 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
kl7-123 | ISLXNKMYQSHBPVIBU | ISLXNKMYQSHBPVIBU | THE EAGLE HAS LANDED | kl7 | kl7 | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 17 | 17 | cipher_museum | 0.2 | public | null | null |
cda-0012408 | 06375 02547 01614 1311 1652 6286 1620 00950 6377 2871 6966 1573 06043 06313 06636 01286 02840 1584 06005 5064 00385 6312 6341 01621 5661 4426 6060 00652 1657 1939 4792 05681 1655 04087 0371 3481 2845 04478 2224 00947 03846 0376 2892 4118 6006 | 06375 02547 01614 1311 1652 6286 1620 00950 6377 2871 6966 1573 06043 06313 06636 01286 02840 1584 06005 5064 00385 6312 6341 01621 5661 4426 6060 00652 1657 1939 4792 05681 1655 04087 0371 3481 2845 04478 2224 00947 03846 0376 2892 4118 6006 | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS | zimmermann | zimmermann | null | {} | medium | en | 45 | 45 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
lorenz-133 | OPERATIONBEGINS | OPERATIONBEGINS | OPERATION BEGINS | lorenz | lorenz | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
wheatstone-v2-0063 | AJNPJGOJDJURGQHRVJNDGQHTQHRPTURHYOJIDXOJIQHTQVHJRURNERDYRUROOHTDDIJQKRNYOH | AJNPJGOJDJURGQHRVJNDGQHTQHRPTURHYOJIDXOJIQHTQVHJRURNERDYRUROOHTDDIJQKRNYOH | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "TELEGRAPHY"
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
kama-sutra-050 | QGJ YPQ BI SYP FW BI UFQYD FXRBPQYCNJ QB QGJ WQYQJ FQ FW DFIJ BP LJYQG | QGJ YPQ BI SYP FW BI UFQYD FXRBPQYCNJ QB QGJ WQYQJ FQ FW DFIJ BP LJYQG | THE ART OF WAR IS OF VITAL IMPORTANCE TO THE STATE IT IS LIFE OR DEATH | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "KAMASUTRA"
} | intermediate | en | 55 | 70 | cipher_museum | 0.2 | public | null | null |
bifid-v2-0087 | PCBRLMISVGBTBMCMPAPFECPRPTPQEWLTALTPQXICKWXWTYAVWUGUZUQOADUEEIWOTORYRZUOGWHTNYU | PCBRLMISVGBTBMCMPAPFECPRPTPQEWLTALTPQXICKWXWTYAVWUGUZUQOADUEEIWOTORYRZUOGWHTNYU | CLAUDE SHANNON PROVED THAT THE ONE TIME PAD ACHIEVES PERFECT SECRECY WHEN USED CORRECTLY ONCE | bifid | bifid | fractionation | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0008 | SGLULOCPCELEUALU | SGLULOCPCELEUALU | THE SENATE DECREES | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
wheatstone-v3-0194 | TEAOFRTEDLYPLRLDMXSEMWSTELTNMIIFSFMKSFKELSEBUKNTFMKSMNNURBLRSMMKARTELKAXPANTAD | TEAOFRTEDLYPLRLDMXSEMWSTELTNMIIFSFMKSFKELSEBUKNTFMKSMNNURBLRSMMKARTELKAXPANTAD | THE BIRTHDAY PARADOX SHOWS THAT COLLISIONS IN HASH FUNCTIONS OCCUR FAR SOONER THAN EXPECTED | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
cda-0014819 | PVGH SLCL GTFL QEYX QDMJ QQYH UDWN FZHE GTCZ SBRD XHAG DPSE AMIT STAL AJFX AKQW WOPW JXGG APXJ YCUB MBZS FUOZ HCIE ATRA XYUP RQRS MHEL FGPM NPLF GRRJ MXCJ YYQ | PVGH SLCL GTFL QEYX QDMJ QQYH UDWN FZHE GTCZ SBRD XHAG DPSE AMIT STAL AJFX AKQW WOPW JXGG APXJ YCUB MBZS FUOZ HCIE ATRA XYUP RQRS MHEL FGPM NPLF GRRJ MXCJ YYQ | PEER REVIEW AND REPRODUCIBILITY MATTER IN RESEARCH COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | one_time_pad | one_time_pad | null | {} | hard | en | 127 | 127 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
cda-0017815 | 15.4.8 13.3.9 2.6.5 18.4.9 16.3.1 15.2.5 13.5.7 3.5.10 18.3.2 10.3.3 11.2.2 15.3.4 19.3.1 4.1.6 16.4.3 7.2.10 9.4.9 4.3.7 1.4.7 5.2.7 1.4.5 12.4.10 11.3.2 7.3.2 18.1.10 8.2.8 20.1.9 2.1.2 17.3.10 17.1.8 17.5.8 4.3.9 6.4.6 20.5.8 10.3.5 17.4.10 14.4.7 7.5.9 4.5.3 1.2.10 13.1.4 4.1.10 2.2.4 12.2.10 6.2.7 4.4.3 5.2.2 11.1... | 15.4.8 13.3.9 2.6.5 18.4.9 16.3.1 15.2.5 13.5.7 3.5.10 18.3.2 10.3.3 11.2.2 15.3.4 19.3.1 4.1.6 16.4.3 7.2.10 9.4.9 4.3.7 1.4.7 5.2.7 1.4.5 12.4.10 11.3.2 7.3.2 18.1.10 8.2.8 20.1.9 2.1.2 17.3.10 17.1.8 17.5.8 4.3.9 6.4.6 20.5.8 10.3.5 17.4.10 14.4.7 7.5.9 4.5.3 1.2.10 13.1.4 4.1.10 2.2.4 12.2.10 6.2.7 4.4.3 5.2.2 11.1... | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF | arnold_andre | arnold_andre | null | {} | medium | en | 50 | 50 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
atbash-023 | GSV PRMT RH WVZW | GSV PRMT RH WVZW | THE KING IS DEAD | atbash | atbash | substitution | {
"type": "none",
"value": null
} | beginner | en | 13 | 16 | cipher_museum | 0.2 | public | null | null |
diana-v2-0206 | ZIAVEAQOCMZEYASYAJBWFHBNEUVFEMEPFHEOKWLWAZOCLKBMPOWXXUJSLIWKBAYPHIORQHSNXPAUEZ | ZIAVEAQOCMZEYASYAJBWFHBNEUVFEMEPFHEOKWLWAZOCLKBMPOWXXUJSLIWKBAYPHIORQHSNXPAUEZ | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "SPECIAL"
} | intermediate | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
beaufort-fr-019 | QEVDFBPPXMHASKAPMKZJXYXPTRXMKGZLATW | QEVDFBPPXMHASKAPMKZJXYXPTRXMKGZLATW | LA FRANCE EST UNE REPUBLIQUE INDIVISIBLE | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "BEAUFORT"
} | intermediate | fr | 35 | 35 | cipher_museum | 0.2 | public | null | null |
cda-0012202 | 20.3.2 15.1.3 10.3.6 3.5.10 3.1.7 11.2.9 4.4.3 6.1.9 17.3.5 14.1.4 17.3.8 4.6.1 16.2.10 9.2.8 18.2.2 20.5.9 16.5.6 1.5.9 1.3.2 17.1.2 10.2.9 20.4.1 11.2.8 18.6.4 15.5.10 5.2.3 19.4.8 1.4.3 5.6.6 16.5.6 15.2.2 5.5.7 6.3.4 20.6.9 10.3.10 5.5.7 16.3.4 2.2.8 15.1.1 12.6.9 5.3.7 10.3.9 18.2.5 16.5.8 2.1.10 6.1.1 4.1.2 1.6.5... | 20.3.2 15.1.3 10.3.6 3.5.10 3.1.7 11.2.9 4.4.3 6.1.9 17.3.5 14.1.4 17.3.8 4.6.1 16.2.10 9.2.8 18.2.2 20.5.9 16.5.6 1.5.9 1.3.2 17.1.2 10.2.9 20.4.1 11.2.8 18.6.4 15.5.10 5.2.3 19.4.8 1.4.3 5.6.6 16.5.6 15.2.2 5.5.7 6.3.4 20.6.9 10.3.10 5.5.7 16.3.4 2.2.8 15.1.1 12.6.9 5.3.7 10.3.9 18.2.5 16.5.8 2.1.10 6.1.1 4.1.2 1.6.5... | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | arnold_andre | arnold_andre | null | {} | hard | en | 196 | 196 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Arnold-André book cipher: coordinates (page.section.word) referencing a shared text. |
wallis-cipher-v2-0125 | 90 55 61 56 91 90 22 63 54 81 10 91 152 90 42 31 91 90 60 89 49 33 24 91 90 68 28 26 91 90 33 34 79 56 85 55 54 82 91 90 59 86 91 90 87 34 10 42 28 85 56 91 90 81 34 21 91 90 84 89 85 87 26 54 34 55 25 53 56 91 90 63 42 43 24 33 39 85 89 52 91 90 49 43 54 82 91 90 81 91 90 34 42 76 56 85 37 60 87 10 89 53 91 90 42 72 9... | 90 55 61 56 91 90 22 63 54 81 10 91 152 90 42 31 91 90 60 89 49 33 24 91 90 68 28 26 91 90 33 34 79 56 85 55 54 82 91 90 59 86 91 90 87 34 10 42 28 85 56 91 90 81 34 21 91 90 84 89 85 87 26 54 34 55 25 53 56 91 90 63 42 43 24 33 39 85 89 52 91 90 49 43 54 82 91 90 81 91 90 34 42 76 56 85 37 60 87 10 89 53 91 90 42 72 9... | THE GREAT CIPHER OF LOUIS XIV INVENTED BY ANTOINE AND BONAVENTURE ROSSIGNOL USED A NOMENCLATOR OF OVER FIVE HUNDRED NUMBERS REPRESENTING SYLLABLES WORDS AND NULLS AND REMAINED UNBROKEN FOR TWO CENTURIES | wallis_cipher | wallis_cipher | nomenclator | {
"type": "seed",
"value": "OXFORD"
} | expert | en | 455 | 681 | cipher_museum | 2.0 | public | null | null |
four-square-v3-0022 | ELCBOANRPOMINSPILU | ELCBOANRPOMINSPILU | DEAD MEN TELL NO TALES | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 18 | 18 | cipher_museum | 2.0 | public | null | null |
rail-fence-v2-0094 | CSESLRTOISTSEAAOEWRISDMIAECSGNDIALTESOCNRSNGRTYLIDNNIEOEITOHVENTAIDMFMLHBHARURNYBEEY | CSESLRTOISTSEAAOEWRISDMIAECSGNDIALTESOCNRSNGRTYLIDNNIEOEITOHVENTAIDMFMLHBHARURNYBEEY | CODED TRANSMISSION INDICATES ENEMY FORCES ASSEMBLING ALONG THE BORDER WITH HEAVY ARTILLERY UNITS | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 7
} | intermediate | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
enigma-198 | LGLUYYNRAFQOBYFR | LGLUYYNRAFQOBYFR | BURN AFTER READING | enigma | enigma | machine | {
"type": "rotor_start",
"value": "RMS"
} | expert | en | 16 | 16 | cipher_museum | 0.2 | public | null | null |
fractionated-morse-v2-0183 | EPXFBLLDPVHBWLKSTVBBKHAKRLFVHFALHRMEPHJQALDQRTAXOPBFPVVASEBPRBAMPWMAREWLSHDPAMBRFAQQR | EPXFBLLDPVHBWLKSTVBBKHAKRLFVHFALHRMEPHJQALDQRTAXOPBFPVVASEBPRBAMPWMAREWLSHDPAMBRFAQQR | WITH MALICE TOWARD NONE WITH CHARITY FOR ALL LET US BIND UP THE NATIONS WOUNDS AND HEAL | fractionated_morse | fractionated_morse | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 85 | 85 | cipher_museum | 2.0 | public | null | null |
cda-0013866 | 846 861 804 834 825 806 999 825 840 815 853 800 854 858 851 862 806 859 861 852 814 999 809 814 854 812 851 865 813 855 999 807 800 851 813 815 862 833 999 810 812 856 826 818 839 999 858 823 814 999 802 862 857 844 830 814 874 999 808 826 847 822 812 853 999 813 869 858 814 840 810 856 999 858 823 813 999 831 812 874 ... | 846 861 804 834 825 806 999 825 840 815 853 800 854 858 851 862 806 859 861 852 814 999 809 814 854 812 851 865 813 855 999 807 800 851 813 815 862 833 999 810 812 856 826 818 839 999 858 823 814 999 802 862 857 844 830 814 874 999 808 826 847 822 812 853 999 813 869 858 814 840 810 856 999 858 823 813 999 831 812 874 ... | PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF TODAY | culper_ring | culper_ring | null | {} | hard | en | 97 | 97 | synthetic_educational | null | null | [
"codebook_frequency",
"number_range_analysis"
] | Culper Ring code: Washington's three-digit codebook numbers (800–999 range). |
cda-0015198 | Γ ┘· ─ ┘· K r ┘· ─ ⌐· X· X L ┘· ¬ ⌐· X· X r ⌐ K Γ· ┘· ─ ⌒ Γ· K r· L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X ┐· ┘· └ ⌒· ¬ Γ· X· X L ─ r ┘· Γ L Γ └ L K K L ┌· X ⌐ X ┐· ⌐ Γ· ┌· X ┘· ⌐· ─ X· ┌ ¬ L ┌· X ⌐· ┌· ┘· ┌ ┘· ─ L K ┘· ⌐· Γ· K· L ⌐· ┌· L └· X· ... | Γ ┘· ─ ┘· K r ┘· ─ ⌐· X· X L ┘· ¬ ⌐· X· X r ⌐ K Γ· ┘· ─ ⌒ Γ· K r· L ─ r ┌· ⌒· ┐· K Γ· ┘· ─ ¬· ┘· ┘· Γ L Γ X· r ⌐ K Γ· ┘· ─ ⌐ └ K ┘· ┘· └ X L ⌣ ┐· └ ⌐ Γ· ─ K r· L Γ· ┌· └ Γ· ┌ Γ· K X ┐· ┘· └ ⌒· ¬ Γ· X· X L ─ r ┘· Γ L Γ └ L K K L ┌· X ⌐ X ┐· ⌐ Γ· ┌· X ┘· ⌐· ─ X· ┌ ¬ L ┌· X ⌐· ┌· ┘· ┌ ┘· ─ L K ┘· ⌐· Γ· K· L ⌐· ┌· L └· X· ... | DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION GOOD EDUCATIONAL TOOLS EXPLAIN THEIR LIMITS POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | pigpen | pigpen | null | {} | medium | en | 60 | 60 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
playfair-v3-0567 | HNLENHRQILPBKNHI | HNLENHRQILPBKNHI | RENDER UNTO CAESAR | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
cda-0009895 | QVTEN CUNAQ GEVTE NCUSE RDHRA PVRFR KCBFR FVZCY RPVCU REFPN ERSHY YL | QVTEN CUNAQ GEVTE NCUSE RDHRA PVRFR KCBFR FVZCY RPVCU REFPN ERSHY YL | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS CAREFULLY | rot13 | rot13 | null | {
"shift": 13
} | medium | en | 57 | 57 | synthetic_educational | null | null | [] | |
hill-v3-0141 | OXXXTDQOEAZOJSDAZVRJ | OXXXTDQOEAZOJSDAZVRJ | THE TELESCOPE REVEALS | hill | hill | polygraphic | {
"a": 5,
"b": 7,
"c": 2,
"d": 9
} | advanced | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0020648 | - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / .- / .-. . .--. . .- - .. -. --. / -.- . -.-- .-- --- .-. -.. / -.. .. ..-. ..-. .. . / .- -. -.. / .... . .-.. .-.. -- .- -. / .. -. - .-. --- -.. ..- -.-. . -.. / .--. ..- -... .-.. .. -.-. / -.- . -.-- / -.-. .-. -.-- .--. - --- --. .-. ... | - .... . / ...- .. --. . -. . .-. . / -.-. .. .--. .... . .-. / ..- ... . ... / .- / .-. . .--. . .- - .. -. --. / -.- . -.-- .-- --- .-. -.. / -.. .. ..-. ..-. .. . / .- -. -.. / .... . .-.. .-.. -- .- -. / .. -. - .-. --- -.. ..- -.-. . -.. / .--. ..- -... .-.. .. -.-. / -.- . -.-- / -.-. .-. -.-- .--. - --- --. .-. ... | THE VIGENERE CIPHER USES A REPEATING KEYWORD DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX A STRONG CLAIM NEEDS STRONG EVIDENCE ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE | morse_code | morse_code | null | {} | hard | en | 184 | 184 | synthetic_educational | null | null | [
"symbol_decode",
"frequency_analysis"
] | Morse code: dots and dashes; word-separated by / symbol. |
cda-0012774 | 3 15 12 21 13 14 1 18 20 18 1 14 19 16 15 19 9 20 9 15 14 18 5 1 4 19 3 15 12 21 13 14 19 9 14 11 5 25 15 18 4 5 18 1 12 23 1 25 19 | 3 15 12 21 13 14 1 18 20 18 1 14 19 16 15 19 9 20 9 15 14 18 5 1 4 19 3 15 12 21 13 14 19 9 14 11 5 25 15 18 4 5 18 1 12 23 1 25 19 | COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER ALWAYS | aeneas_tacticus | aeneas_tacticus | null | {} | medium | en | 49 | 49 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
geez-monastic-v2-0105 | LAJMJDYOJBLKYVVAHVIYLUTHUYLYHBNBLYVMJYBXHMQJOJBLUPMMYZJXMHOLAJJPULJMBQHOOPBITHULAJMJ | LAJMJDYOJBLKYVVAHVIYLUTHUYLYHBNBLYVMJYBXHMQJOJBLUPMMYZJXMHOLAJJPULJMBQHOOPBITHULAJMJ | THE REGIMENT WILL HOLD ITS POSITION UNTIL REINFORCEMENTS ARRIVE FROM THE EASTERN COMMAND POST HERE | geez_monastic | geez_monastic | substitution | {
"type": "keyword",
"value": "ETHIOPIA"
} | advanced | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
kryha-v3-0178 | FAHJEDNASOUHZDRNXBCIUAPTJEYAXFYWBXPJNIWADEBWKNJJKRUAGIVGAMTALQILSWAWGQOW | FAHJEDNASOUHZDRNXBCIUAPTJEYAXFYWBXPJNIWADEBWKNJJKRUAGIVGAMTALQILSWAWGQOW | DO UNTO OTHERS AS YOU WOULD HAVE THEM DO UNTO YOU THIS IS THE GOLDEN RULE OF ALL RELIGIONS | kryha | kryha | machine | {
"type": "keyword",
"value": "VIENNA"
} | expert | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
cda-0016268 | OPYLXVPFWRGSIAZJGPHYGHHEKERPRIMKVDWGHQGTHHRAFDJRJVEYDITJFAMCYRANWYHQNHREQHKMIBANFSLKGXD | OPYLXVPFWRGSIAZJGPHYGHHEKERPRIMKVDWGHQGTHHRAFDJRJVEYDITJFAMCYRANWYHQNHREQHKMIBANFSLKGXD | BEAUFORT IS THE RECIPROCAL OF VIGENERE AND DECRYPTS ITSELF DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION | one_time_pad | one_time_pad | null | {} | hard | en | 87 | 87 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
playfair-v2-0862 | CQAZOPVDOQLBDWZFWLISPERWZLOSWZWQBOOQLBWZNOCPWKTEYNSDLBBS | CQAZOPVDOQLBDWZFWLISPERWZLOSWZWQBOOQLBWZNOCPWKTEYNSDLBBS | BREVITY IS THE SOUL OF WIT AND TEDIOUSNESS THE OUTWARD FLOURISHES | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "WISDOM"
} | intermediate | en | 56 | 56 | cipher_museum | 2.0 | public | null | null |
playfair-v2-0801 | OTHGIRFBOTIDIHRDHWURQIOPISIRHKZCLILKOAOROZNKLROPHNXLQTRUQOEIHOFANKEFTUNLDHIV | OTHGIRFBOTIDIHRDHWURQIOPISIRHKZCLILKOAOROZNKLROPHNXLQTRUQOEIHOFANKEFTUNLDHIV | LIBERTÉ ÉGALITÉ FRATERNITÉ OU LA MORT CES MOTS DÉFINISSENT LA REVOLUTION FRANÇAISE DE MIL SEPT | playfair | playfair | polygraphic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
trithemius-v2-0039 | TPTSIIU HEJI LXY VPDUK ULVYB | TPTSIIU HEJI LXY VPDUK ULVYB | TORPEDO AWAY ALL HANDS BRACE | trithemius | trithemius | polyalphabetic | {
"type": "none",
"value": null
} | beginner | en | 24 | 28 | cipher_museum | 2.0 | public | null | null |
diana-120 | ARRSLRPIEJMJKAXOXNCRWTZQLEPXWEWGBEAZGAWAQXJPIDUNEICEWYVIXGANPTYHCYUGLEZDLIXWQEWIXOXNLEIHJNBELUCDZEXOQQLEPXLKYBHPLDLKBCCAETWTTDWKHPEQCPWWADXMHOM | ARRSLRPIEJMJKAXOXNCRWTZQLEPXWEWGBEAZGAWAQXJPIDUNEICEWYVIXGANPTYHCYUGLEZDLIXWQEWIXOXNLEIHJNBELUCDZEXOQQLEPXLKYBHPLDLKBCCAETWTTDWKHPEQCPWWADXMHOM | 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 | diana | diana | polyalphabetic | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | en | 143 | 143 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v3-0083 | BPMZQOPBWNBPMXMWXTMBWSMMXIVLJMIZIZUAAPITTVWBJMQVNZQVOMLJGBPMNMLMZITOWDMZVUMVB | BPMZQOPBWNBPMXMWXTMBWSMMXIVLJMIZIZUAAPITTVWBJMQVNZQVOMLJGBPMNMLMZITOWDMZVUMVB | THE RIGHT OF THE PEOPLE TO KEEP AND BEAR ARMS SHALL NOT BE INFRINGED BY THE FEDERAL GOVERNMENT | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "SEOUL"
} | beginner | en | 77 | 77 | cipher_museum | 2.0 | public | null | null |
cda-0002207 | XGHG UBXN SDQT ESQW FFID AKCI AAHL MXBQ STFF MTOL CFEP ZMUT VUFM FMVQ FLBY YJAX GSBR AXGQ EBAN QMUG FWHG | XGHG UBXN SDQT ESQW FFID AKCI AAHL MXBQ STFF MTOL CFEP ZMUT VUFM FMVQ FLBY YJAX GSBR AXGQ EBAN QMUG FWHG | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS A TRANSPARENT TOOL SHOULD SHOW ITS REASONING | beaufort | beaufort | null | {
"key": "MUSEUM"
} | hard | en | 84 | 84 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
sigaba-v2-0486 | QFBXTIWOKNJLQEUPWWXBLQXZZFAOAXLOWVNWGFGAGPXXCXWSDLXBQEWRJBVEDFIKEFALLUGHKXRJGNJMXZCVWMYXVXOQAAMEDMUWCAIFBBUZWWHPZMQZMDBNQBMXFIUQFOXGXFVNXKWBNJV | QFBXTIWOKNJLQEUPWWXBLQXZZFAOAXLOWVNWGFGAGPXXCXWSDLXBQEWRJBVEDFIKEFALLUGHKXRJGNJMXZCVWMYXVXOQAAMEDMUWCAIFBBUZWWHPZMQZMDBNQBMXFIUQFOXGXFVNXKWBNJV | 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 | sigaba | sigaba | machine | {
"type": "seed",
"value": "LIBERTY"
} | expert | en | 143 | 143 | cipher_museum | 2.0 | public | null | null |
adfgx-v2-0430 | DFGFDGAXAGFFGXFDFFXFFGGXFFGADAFFDFGXAGDDDDAFGDGDFFGAXAGFGFGAAFAAFFGAAADDDXDAGXAAAGAAADFFAFAAGGGXGDAAXGDDGGAAGDAGADAAGFGAADDDFDXFFAXAAGFGDGAAAXAADXDAGXFAFDDD | DFGFDGAXAGFFGXFDFFXFFGGXFFGADAFFDFGXAGDDDDAFGDGDFFGAXAGFGFGAAFAAFFGAAADDDXDAGXAAAGAAADFFAFAAGGGXGDAAXGDDGGAAGDAGADAAGFGAADDDFDXFFAXAAGFGDGAAAXAADXDAGXFAFDDD | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | adfgx | adfgx | fractionation | {
"polybius": "DRAGON",
"columnar": "THUNDER"
} | advanced | en | 156 | 156 | cipher_museum | 2.0 | public | null | null |
monoalphabetic-516 | PGG SBF VKOGYQ P QSPRF PJY PGG SBF HFJ PJY VKHFJ HFOFGX MGPXFOQ | PGG SBF VKOGYQ P QSPRF PJY PGG SBF HFJ PJY VKHFJ HFOFGX MGPXFOQ | ALL THE WORLDS A STAGE AND ALL THE MEN AND WOMEN MERELY PLAYERS | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "PLAYFAIR"
} | beginner | en | 51 | 63 | cipher_museum | 0.2 | public | null | null |
cda-0011604 | TNHS XESH ESMX XEHB EOTX XHWS TWOX XDHL EEFX XARS SEIX XLTO | TNHS XESH ESMX XEHB EOTX XHWS TWOX XDHL EEFX XARS SEIX XLTO | THE BEST LESSONS SHOW WHERE THE METHOD FAILS | stager_route | stager_route | null | {
"cols": 12
} | medium | en | 48 | 48 | synthetic_educational | null | null | [] | |
trifid-v2-0244 | EGXVLVEVOLLDHIIJFDEOTODCVNFPIQ+FTTHVIHKCTOJCLHSAJIUTMCLOOINEYFIXDUNKODTOHNLUCEDOEEHFLTODCLULD+HTDIFJBCGWEWTSRSFEPEUESYEIDFLDGKPOTGTVAZDS | EGXVLVEVOLLDHIIJFDEOTODCVNFPIQ+FTTHVIHKCTOJCLHSAJIUTMCLOOINEYFIXDUNKODTOHNLUCEDOEEHFLTODCLULD+HTDIFJBCGWEWTSRSFEPEUESYEIDFLDGKPOTGTVAZDS | 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 | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0349 | VUIOPJXPICPALOMOAYZ | VUIOPJXPICPALOMOAYZ | THE TELESCOPE REVEALS | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "TEUTON"
} | expert | en | 19 | 19 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v3-0133 | WIL YLMOCXWU XYL OCDHQJ | WIL YLMOCXWU XYL OCDHQJ | THE REDCOATS ARE COMING | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "VATSYANA"
} | intermediate | en | 20 | 23 | cipher_museum | 2.0 | public | null | null |
adfgvx-v2-0091 | DAXFAXAFDGGADDVDGGXGXDDDDGGGGFAGFDFGDDDAGAGFAFAFAAAGFFVGDVFVVDDDXFAFDVAFGFAAAFDXAAGAGAAAGGFAGFDADGDGVDDFFFDAADADAADADDDFFDADAFGFGGFFGGVVVXVXVGVVDFGGGFGGGDXDVGXV | DAXFAXAFDGGADDVDGGXGXDDDDGGGGFAGFDFGDDDAGAGFAFAFAAAGFFVGDVFVVDDDXFAFDVAFGFAAAFDXAAGAGAAAGGFAGFDADGDGVDDFFFDAADADAADADDDFFDADAFGFGGFFGGVVVXVXVGVVDFGGGFGGGDXDVGXV | THE SECRET LIES BURIED BENEATH THE THIRD FLAGSTONE OF THE OLD CHURCH COURTYARD AT DAWN TOMORROW | adfgvx | adfgvx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
hill-262 | GOOYCBRNMHJHBBPSBK | GOOYCBRNMHJHBBPSBK | AWAIT FURTHER ORDERS | hill | hill | polygraphic | {
"a": 7,
"b": 5,
"c": 2,
"d": 3
} | advanced | en | 18 | 18 | cipher_museum | 0.2 | public | null | null |
argenti-137 | 31 78 82 11 21 28 11 64 78 53 80 86 46 79 58 | 31 78 82 11 21 28 11 64 78 53 80 86 46 79 58 | MEET AT THE OLD OAK | argenti | argenti | nomenclator | {
"type": "seed",
"value": "SECRET"
} | expert | en | 30 | 44 | cipher_museum | 0.2 | public | null | null |
alberti-disk-v2-0853 | UKYCCREPTLJYOLGAKTWHWNGVIHHFJXZIMCBUJRDNYSCTXKJZPDXPFWFUFUELMIVAFRMKGAHUBAHLCTALLHOY | UKYCCREPTLJYOLGAKTWHWNGVIHHFJXZIMCBUJRDNYSCTXKJZPDXPFWFUFUELMIVAFRMKGAHUBAHLCTALLHOY | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | alberti_disk | alberti_disk | disk | {
"type": "integer",
"value": 16
} | expert | en | 84 | 84 | cipher_museum | 2.0 | public | null | null |
homophonic-v3-0021 | 78 58 22 53 87 72 69 89 50 22 28 93 43 72 58 22 89 | 78 58 22 53 87 72 69 89 50 22 28 93 43 72 58 22 89 | OLD IRONSIDES HOLDS | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
wheatstone-v2-0139 | STLYTEANMURSA | STLYTEANMURSA | STAY THE COURSE | wheatstone | wheatstone | polygraphic | {
"type": "keyword",
"value": "LONDON"
} | advanced | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
lorenz-v2-0229 | GENTLEMENMAYCRYPEACEPEAAEBUTTHEREISNOPEACETHEWARISACTUCLLYBEGUNTHENEXTGALETHATSWEEPSFTOMTHENORTHWILLBRINGTOOUREARSTHGCLASHOFRESOUNDINGARMSOURBRETHRGNAREALREADYINTHEFIELD | GENTLEMENMAYCRYPEACEPEAAEBUTTHEREISNOPEACETHEWARISACTUCLLYBEGUNTHENEXTGALETHATSWEEPSFTOMTHENORTHWILLBRINGTOOUREARSTHGCLASHOFRESOUNDINGARMSOURBRETHRGNAREALREADYINTHEFIELD | GENTLEMEN MAY CRY PEACE PEACE BUT THERE IS NO PEACE THE WAR IS ACTUALLY BEGUN THE NEXT GALE THAT SWEEPS FROM THE NORTH WILL BRING TO OUR EARS THE CLASH OF RESOUNDING ARMS OUR BRETHREN ARE ALREADY IN THE FIELD | lorenz | lorenz | machine | {
"type": "seed",
"value": "FISH"
} | expert | en | 169 | 169 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0218 | 175 163 136 179 182 101 178 142 167 168 149 175 163 127 166 160 166 132 165 143 169 156 138 117 147 112 101 165 177 111 117 108 169 117 173 150 100 107 117 179 149 151 182 170 118 113 133 107 177 182 175 162 105 140 142 168 100 180 117 | 175 163 136 179 182 101 178 142 167 168 149 175 163 127 166 160 166 132 165 143 169 156 138 117 147 112 101 165 177 111 117 108 169 117 173 150 100 107 117 179 149 151 182 170 118 113 133 107 177 182 175 162 105 140 142 168 100 180 117 | YOUR MISSION IF YOU CHOOSE TO ACCEPT IT IS TO EXTRACT THE AGENT FROM BEHIND ENEMY LINES TONIGHT | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "ROSSIGNOL"
} | expert | en | 177 | 235 | cipher_museum | 2.0 | public | null | null |
bazeries-v2-0208 | OJAPJAUYIITEYMPJWGYGAPMYOTKYYMTPNIJEYIGYMJPNTYKYTPBPBAKOJOJFMYAKPITOITXTOWJTYSMYN | OJAPJAUYIITEYMPJWGYGAPMYOTKYYMTPNIJEYIGYMJPNTYKYTPBPBAKOJOJFMYAKPITOITXTOWJTYSMYN | THOSE WHO CANNOT REMEMBER THE PAST ARE CONDEMNED TO REPEAT IT AS PHILOSOPHER SANTAYANA OBSERVED | bazeries | bazeries | transposition | {
"type": "integer",
"value": 23
} | advanced | en | 81 | 81 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0332 | YTGQQKXQAGZG | YTGQQKXQAGZG | GOLD FROM LEAD | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "JUSTICE"
} | advanced | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
chaocipher-v3-0065 | DVOOILAHXTXXTDFOGAORCFLKTHMNTSSDUMNLJRRSNHPSUNSUCTCBBHOISFWXUKKPTLKUEOTYWLE | DVOOILAHXTXXTDFOGAORCFLKTHMNTSSDUMNLJRRSNHPSUNSUCTCBBHOISFWXUKKPTLKUEOTYWLE | THE BATTLE OF GETTYSBURG LASTED THREE DAYS AND COST OVER FIFTY THOUSAND CASUALTIES TOTAL | chaocipher | chaocipher | machine | {
"type": "keyword",
"value": "PALACE"
} | advanced | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
affine-vh-0037 | ID UDW ZDUADEL WD WSR MHWWREU DA WSBN XDECI QFW QR WEHUNADELRI QP WSR ERURXBUJ DA PDFE LBUI | ID UDW ZDUADEL WD WSR MHWWREU DA WSBN XDECI QFW QR WEHUNADELRI QP WSR ERURXBUJ DA PDFE LBUI | DO NOT CONFORM TO THE PATTERN OF THIS WORLD BUT BE TRANSFORMED BY THE RENEWING OF YOUR MIND | affine | affine | substitution | {
"a": 9,
"b": 7
} | beginner | en | 74 | 91 | cipher_museum | 2.0 | public | null | null |
cda-0015418 | 66 36 82 20 50 76 50 11 52 50 65 36 82 80 52 69 77 20 50 29 82 61 68 65 69 57 43 20 50 59 61 61 72 59 68 80 82 89 50 66 36 66 80 68 29 61 65 69 61 50 66 50 69 29 66 89 69 61 72 59 68 80 82 52 50 65 36 82 80 82 29 52 80 43 65 66 61 11 50 25 80 68 65 36 61 89 50 66 36 66 89 69 65 69 57 43 20 50 59 61 68 57 65 36 68 20 82... | 66 36 82 20 50 76 50 11 52 50 65 36 82 80 52 69 77 20 50 29 82 61 68 65 69 57 43 20 50 59 61 61 72 59 68 80 82 89 50 66 36 66 80 68 29 61 65 69 61 50 66 50 69 29 66 89 69 61 72 59 68 80 82 52 50 65 36 82 80 82 29 52 80 43 65 66 61 11 50 25 80 68 65 36 61 89 50 66 36 66 89 69 65 69 57 43 20 50 59 61 68 57 65 36 68 20 82... | THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS | wallis_cipher | wallis_cipher | null | {} | hard | en | 109 | 109 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
bazeries-v3-0364 | EQJIJTGQIYEJQJQIBYJJEQFAQAEBITYEFTGJTGSJAPIFIMSOFYUFMTYPJGRQMXFTNJEFMYEFY | EQJIJTGQIYEJQJQIBYJJEQFAQAEBITYEFTGJTGSJAPIFIMSOFYUFMTYPJGRQMXFTNJEFMYEFY | DO NOT GO GENTLE INTO THAT GOOD NIGHT OLD AGE SHOULD BURN AND RAVE AT CLOSE OF DAY RAGE RAGE | bazeries | bazeries | transposition | {
"type": "integer",
"value": 41
} | advanced | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
vic-v2-0457 | 932898268585083818290486908227268082289932898268585083818290486908228568638386818114918638993289826858508381829083869082208328538968638386908228990122908993289826858508381829083869082282838585899328982685858629221899111286321 | 932898268585083818290486908227268082289932898268585083818290486908228568638386818114918638993289826858508381829083869082208328538968638386908228990122908993289826858508381829083869082282838585899328982685858629221899111286321 | WE SHALL FIGHT ON THE BEACHES WE SHALL FIGHT ON THE LANDING GROUNDS WE SHALL FIGHT IN THE FIELDS AND IN THE STREETS WE SHALL FIGHT IN THE HILLS WE SHALL NEVER SURRENDER | vic | vic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 225 | 225 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v2-0206 | UJPVENBYCPEEQRVCOAZCUGJXWNNFGILFMECNVUJIAGADQTCQAYSKKMPABMTWIQPDCOFDZOGTUHAWPI | UJPVENBYCPEEQRVCOAZCUGJXWNNFGILFMECNVUJIAGADQTCQAYSKKMPABMTWIQPDCOFDZOGTUHAWPI | THE HEAVENS DECLARE THE GLORY OF GOD AND THE FIRMAMENT SHOWETH FORTH HIS HANDIWORK EACH NIGHT | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "KAISER"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
stager-route-218 | TOMHEAATEGTEHYRHETDANLGDXEYGVESREOAERERXXAXEBTFP | TOMHEAATEGTEHYRHETDANLGDXEYGVESREOAERERXXAXEBTFP | THE REPORTS OF MY DEATH HAVE BEEN GREATLY EXAGGERATED | stager_route | stager_route | transposition | {
"type": "integer",
"value": 6
} | expert | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
cda-0003451 | DVYND DTJUT EYJVH VZNON YTOKN IGUSP XAVAU VOXEY TVDQI ASQES ANE | DVYND DTJUT EYJVH VZNON YTOKN IGUSP XAVAU VOXEY TVDQI ASQES ANE | INDEX OF COINCIDENCE MEASURES LETTER FREQUENCY DISTRIBUTION | beaufort | beaufort | null | {
"key": "LIBRARY"
} | medium | en | 53 | 53 | synthetic_educational | null | null | [
"kasiski_examination",
"friedman_test",
"index_of_coincidence"
] | Beaufort: E(x)=k-x mod 26 — reciprocal cipher (decryption identical to encryption). |
cda-0018157 | FAILX LOSED ISAPO STURZ NOTAS LOGAZ TRANS POSIX IONCI PHERS REARZ ANGEL ETTER SWITH OUTSU BSTIT UTION THERA ILFEN CECIP HERWR ITESZ EXTIN AZIGZ AGPAT TERNA SCYTA LEISA RODUZ EDBYS PARTZ NSTOZ NCRYX TMESZ AGESA | FAILX LOSED ISAPO STURZ NOTAS LOGAZ TRANS POSIX IONCI PHERS REARZ ANGEL ETTER SWITH OUTSU BSTIT UTION THERA ILFEN CECIP HERWR ITESZ EXTIN AZIGZ AGPAT TERNA SCYTA LEISA RODUZ EDBYS PARTZ NSTOZ NCRYX TMESZ AGESA | FAIL CLOSED IS A POSTURE NOT A SLOGAN TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE RAIL FENCE CIPHER WRITES TEXT IN A ZIGZAG PATTERN A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES | commercial_code | commercial_code | null | {} | hard | en | 175 | 175 | synthetic_educational | null | null | [
"codebook_frequency",
"five_letter_group_analysis"
] | Commercial code: five-letter groups from a codebook, often ending in X or Z. |
cda-0012400 | 5030 4793 03813 07900 00346 3837 5035 2552 0345 0643 1650 6340 02834 0976 00989 2891 05099 2546 01595 5742 6018 6671 05975 01624 04088 06613 03787 06369 02860 5076 3839 01625 0354 03867 05054 2582 00355 0694 01636 06347 5966 02588 02912 1885 06339 06018 01972 05657 1662 5410 6675 01665 4479 1005 07869 00331 04489 00365... | 5030 4793 03813 07900 00346 3837 5035 2552 0345 0643 1650 6340 02834 0976 00989 2891 05099 2546 01595 5742 6018 6671 05975 01624 04088 06613 03787 06369 02860 5076 3839 01625 0354 03867 05054 2582 00355 0694 01636 06347 5966 02588 02912 1885 06339 06018 01972 05657 1662 5410 6675 01665 4479 1005 07869 00331 04489 00365... | POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG NEVER | zimmermann | zimmermann | null | {} | hard | en | 132 | 132 | synthetic_educational | null | null | [
"codebook_frequency",
"number_group_analysis"
] | Zimmermann Telegram code: WWI German diplomatic numeric codebook cipher. |
caesar-vf-0130 | OZSHDMBD NTSKZRSR ZKK NARSZBKDR | OZSHDMBD NTSKZRSR ZKK NARSZBKDR | PATIENCE OUTLASTS ALL OBSTACLES | caesar | caesar | substitution | {
"type": "shift",
"value": 25
} | beginner | en | 28 | 31 | cipher_museum | 2.0 | public | null | null |
venona-pad-reuse-v2-0049 | 4HPQWEEIYYMBDE2C2M5NFTQX6ADNGHHTIRMLAEYHCW4HPGGJ4LPRCMCF2OODLA6EPEOO6E | 4HPQWEEIYYMBDE2C2M5NFTQX6ADNGHHTIRMLAEYHCW4HPGGJ4LPRCMCF2OODLA6EPEOO6E | THE QUALITY OF MERCY IS NOT STRAINED IT DROPPETH AS THE GENTLE RAIN FROM HEAVEN ABOVE | venona_pad_reuse | venona_pad_reuse | stream | {
"type": "keyword",
"value": "PALACE"
} | expert | en | 70 | 70 | cipher_museum | 2.0 | public | null | null |
four-square-v2-0007 | TFFKPIGCUAQMGS | TFFKPIGCUAQMGS | SIGNAL FIRES LIT | four_square | four_square | polygraphic | {
"key1": "PALACE",
"key2": "BATTLE"
} | advanced | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
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