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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
trifid-v2-0430 | GF+MNOEQUJNBEMVSDUYYVNGDA+PC+KGFFBK+PRKGRUDYO+GKMPCERIKPSFHJSAFRBAAFMYFY | GF+MNOEQUJNBEMVSDUYYVNGDA+PC+KGFFBK+PRKGRUDYO+GKMPCERIKPSFHJSAFRBAAFMYFY | GENERAL GRANT HAS TAKEN VICKSBURG THE GREAT RIVER IS NOW OPEN FROM ITS SOURCE TO THE SEA | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FREEDOM"
} | advanced | en | 72 | 72 | cipher_museum | 2.0 | public | null | null |
sigaba-v2-0024 | GXFJZOUNSYCKYXZK | GXFJZOUNSYCKYXZK | THE WALLS HAVE EARS | sigaba | sigaba | machine | {
"type": "seed",
"value": "ECMMARK"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
kama-sutra-126 | DWFXYYP UZ DIUGGYP | DWFXYYP UZ DIUGGYP | PROCEED AS PLANNED | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SECRET"
} | intermediate | en | 16 | 18 | cipher_museum | 0.2 | public | null | null |
cda-0016601 | .... .... .. ... . ..... ... .... ... ... . ..... .... .... .. .... ... .. . ..... ... ..... . . . .... .. .... .... ... .... .... .. ... . ..... ... .... .... .. . ..... .... .... .. .... . ... . . ... . ... . ..... .... .... ..... ... ... . .. .... .. . ..... . . . ... . . . .. ..... | .... .... .. ... . ..... ... .... ... ... . ..... .... .... .. .... ... .. . ..... ... ..... . . . .... .. .... .... ... .... .... .. ... . ..... ... .... .... .. . ..... .... .... .. .... . ... . . ... . ... . ..... .... .... ..... ... ... . .. .... .. . ..... . . . ... . . . .. ..... | THE ONE TIME PAD IS THEORETICALLY UNBREAKABLE IF USED CORRECTLY | tap_code | tap_code | null | {} | medium | en | 54 | 54 | synthetic_educational | null | null | [
"dot_count_decode",
"grid_position_search"
] | Tap code: letters encoded as dot-groups representing row and column in 5×5 grid. |
cda-0016778 | AABB ABAA AAAB BABA BBAA BAAA BAAB ABAA BAAA BABA AAAB BBAA BBBA AABA ABAA BAAA BAAA AAAA ABBA BAAA AABB AABA AABA ABAB AAAB AABA AABB BBBA ABBA ABAA ABBA AAAA BAAA BAAA AAAA BAAA BBAA BAAA BBBA ABAA BAAA AAAB AAAB BBAA ABAA AAAA ABAA BAAB AAAA BBAA AABB AABA ABAA BAAB ABBA ABBA BABB BAAA BAAA BBAA BAAA BABB ABBA ABBB ... | AABB ABAA AAAB BABA BBAA BAAA BAAB ABAA BAAA BABA AAAB BBAA BBBA AABA ABAA BAAA BAAA AAAA ABBA BAAA AABB AABA AABA ABAB AAAB AABA AABB BBBA ABBA ABAA ABBA AAAA BAAA BAAA AAAA BAAA BBAA BAAA BBBA ABAA BAAA AAAB AAAB BBAA ABAA AAAA ABAA BAAB AAAA BBAA AABB AABA ABAA BAAB ABBA ABBA BABB BAAA BAAA BBAA BAAA BABB ABBA ABBB ... | GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY OPEN SOURCE TOOLS ALLOW INDEPENDENT VERIFICATION A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG ALWAYS | bacon_cipher | bacon_cipher | null | {} | hard | en | 685 | 685 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0017149 | THAN ZIEL INDZ EHBE DZEH THAN ZIED ZEHM OASI THAN ZIET KINA KEHD IGLI NIDZ EHDI BEHT HANZ IENO DAIH BETK INDZ EHDI BEHC LAGI AIHW OLLA CHEE THAN ZIET HANZ IEDZ EHGA HTSA HDIB EHSH USHD ZEHM AEAK HAGA HDZE HNAA STSO SIWO LLAC HEEK LIZZ IETK INTS AHAH JAHM OASI | THAN ZIEL INDZ EHBE DZEH THAN ZIED ZEHM OASI THAN ZIET KINA KEHD IGLI NIDZ EHDI BEHT HANZ IENO DAIH BETK INDZ EHDI BEHC LAGI AIHW OLLA CHEE THAN ZIET HANZ IEDZ EHGA HTSA HDIB EHSH USHD ZEHM AEAK HAGA HDZE HNAA STSO SIWO LLAC HEEK LIZZ IETK INTS AHAH JAHM OASI | THE DETECTIVE STUDIES PATTERNS BEFORE MAKING CLAIMS THE MESSAGE WAS HIDDEN BUT NOT SECURE THE TRITHEMIUS CIPHER ADVANCES THE ALPHABET BY ONE POSITION EACH LETTER | navajo_code | navajo_code | null | {} | hard | en | 208 | 208 | synthetic_educational | null | null | [
"codebook_frequency",
"word_list_attack"
] | Navajo Code Talker cipher: Navajo words represent English letters. |
m94-v3-0086 | IGRUQCCIPRFNMIIFUCQRFXJKSLRMVGEXNPNZJLMMQLHXUFBBKWCJNVVXDKYIPBJRWYPCVSFLEPRRXXV | IGRUQCCIPRFNMIIFUCQRFXJKSLRMVGEXNPNZJLMMQLHXUFBBKWCJNVVXDKYIPBJRWYPCVSFLEPRRXXV | ALL PERSONS BORN OR NATURALIZED IN THE UNITED STATES ARE CITIZENS SUBJECT TO EQUAL PROTECTION | m94 | m94 | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 79 | 79 | cipher_museum | 2.0 | public | null | null |
scytale-v2-0681 | RDLOVETTEFPNXIHEREDYANORTXCANCETRNDREXXHSOENHECEMSXXMFUSTESEDTIXXOARHECIIIHDXXNLFARISSNEEXX | RDLOVETTEFPNXIHEREDYANORTXCANCETRNDREXXHSOENHECEMSXXMFUSTESEDTIXXOARHECIIIHDXXNLFARISSNEEXX | RICHMOND HAS FALLEN OUR FORCES HAVE ENTERED THE CITY RESISTANCE IS ENDED INFORM THE PRESIDENT | scytale | scytale | transposition | {
"type": "integer",
"value": 13
} | intermediate | en | 91 | 91 | cipher_museum | 2.0 | public | null | null |
cda-0012707 | 36 50 57 57 52 50 65 36 82 80 59 61 82 61 57 50 29 82 68 80 68 57 25 82 20 80 68 66 69 82 29 52 80 43 65 66 20 57 69 52 55 61 69 76 57 82 66 66 82 80 61 | 36 50 57 57 52 50 65 36 82 80 59 61 82 61 57 50 29 82 68 80 68 57 25 82 20 80 68 66 69 82 29 52 80 43 65 66 20 57 69 52 55 61 69 76 57 82 66 66 82 80 61 | HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS | wallis_cipher | wallis_cipher | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
cda-0017713 | 9.35.7 20.27.6 3.12.12 9.8.1 13.31.1 14.32.4 2.7.4 18.3.3 20.25.13 11.32.5 4.15.1 19.44.1 5.35.11 1.15.4 10.1.10 1.26.13 6.44.6 11.29.9 6.18.2 16.45.3 11.40.5 8.40.2 4.17.15 8.34.3 17.2.13 4.39.5 5.41.8 17.7.14 18.16.10 6.1.11 18.44.9 11.48.15 7.4.6 18.27.1 10.20.15 10.38.7 16.48.4 17.19.13 3.22.7 1.27.3 19.15.13 15.36... | 9.35.7 20.27.6 3.12.12 9.8.1 13.31.1 14.32.4 2.7.4 18.3.3 20.25.13 11.32.5 4.15.1 19.44.1 5.35.11 1.15.4 10.1.10 1.26.13 6.44.6 11.29.9 6.18.2 16.45.3 11.40.5 8.40.2 4.17.15 8.34.3 17.2.13 4.39.5 5.41.8 17.7.14 18.16.10 6.1.11 18.44.9 11.48.15 7.4.6 18.27.1 10.20.15 10.38.7 16.48.4 17.19.13 3.22.7 1.27.3 19.15.13 15.36... | THE MESSAGE WAS HIDDEN BUT NOT SECURE POLYALPHABETIC CIPHERS USE MULTIPLE ALPHABET SHIFTS DO NOT CONFUSE OBFUSCATION WITH ENCRYPTION THE FRIEDMAN TEST USES THE INDEX OF COINCIDENCE TO ESTIMATE KEY LENGTH | book_cipher | book_cipher | null | {} | hard | en | 173 | 173 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
adfgvx-v2-0351 | XDXAXAFDDAFFVAFAXGVDVDGGAGDDXFDGVDFFXDAADDDDXDDAXDDGXAGAFAAAVADDAFDFAGAXDAFGFXAXADFFFDADDDAAFGFAFDGADDADVDDDDAFFDFFDGGXAAADADDAAAGDGGAGXDVAVDFAAGX | XDXAXAFDDAFFVAFAXGVDVDGGAGDDXFDGVDFFXDAADDDDXDDAXDDGXAGAFAAAVADDAFDFAGAXDAFGFXAXADFFFDADDDAAFGFAFDGADDADVDDDDAFFDFFDGGXAAADADDAAAGDGGAGXDVAVDFAAGX | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 146 | 146 | cipher_museum | 2.0 | public | null | null |
cda-0019511 | AABBB BAABB ABABB AAAAA ABBAA BAAAA AABAA AAAAA AAABB AAAAA AAAAB ABABA AABAA ABBAB BAABB BAABA ABBBA BAABB BAABA BAAAB AABBB ABBAB BAABB ABABA AAABB BAAAB AABBB ABBAB BABAA AAAAA ABABA ABABA BAAAA AABAA AAAAA BAAAB ABBAB ABBAA ABAAA ABBAA AABBA BAAAB BAABA AABAA ABBBA BAAAB AAAAA ABABA AAAAA ABBAA BAABA BAABB BAAAA AB... | AABBB BAABB ABABB AAAAA ABBAA BAAAA AABAA AAAAA AAABB AAAAA AAAAB ABABA AABAA ABBAB BAABB BAABA ABBBA BAABB BAABA BAAAB AABBB ABBAB BAABB ABABA AAABB BAAAB AABBB ABBAB BABAA AAAAA ABABA ABABA BAAAA AABAA AAAAA BAAAB ABBAB ABBAA ABAAA ABBAA AABBA BAAAB BAABA AABAA ABBBA BAAAB AAAAA ABABA AAAAA ABBAA BAABA BAABB BAAAA AB... | HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS ALAN TURING BROKE ENIGMA WITH CRIBS AND THE BOMBE MACHINE THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION | bacon_cipher | bacon_cipher | null | {} | hard | en | 985 | 985 | synthetic_educational | null | null | [
"five_bit_decode",
"ab_frequency_analysis"
] | Bacon's biliteral cipher: each letter encoded as 5-bit A/B string. |
cda-0013123 | ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X ¬· ┌· ┘· ─ X ⌐· L └ Γ X· X L X ⌐ Γ Γ· ¬· Γ· K X L └· X· L ─ r L ⌐ X K r· L ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· | ⌐ X r ⌒· K ⌐ └ L Γ· X ⌐ ┌· ┘· Γ X· X L Γ ¬ ⌒· X ┐· ⌐ ┌· K ⌐ ─ X K ┘· L ─ r ┌· ⌒· ┐· K ┌ L X X ⌐ ¬· L X ¬· ┌· ┘· ─ X ⌐· L └ Γ X· X L X ⌐ Γ Γ· ¬· Γ· K X L └· X· L ─ r L ⌐ X K r· L ┌· L ┐· L ⌐ K Γ· ─ ¬· ┐ L ⌒· | A SCYTALE IS A ROD USED BY SPARTANS TO ENCRYPT MESSAGES GRONSFELD USES A DIGIT SEQUENCE AS THE REPEATING KEY | pigpen | pigpen | null | {} | medium | en | 41 | 41 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
cda-0009754 | TFNFBSDAIGRETLUCCHEOELIRSENXFEUCCIIINNSLICRUXXLVTNUACDEIUEFUEDXXESRRPSDXOEEUAECSX | TFNFBSDAIGRETLUCCHEOELIRSENXFEUCCIIINNSLICRUXXLVTNUACDEIUEFUEDXXESRRPSDXOEEUAECSX | THE INDEX OF COINCIDENCE IS A USEFUL CLUE PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN | stager_route | stager_route | null | {
"cols": 9
} | hard | en | 81 | 81 | synthetic_educational | null | null | [] | |
hill-v2-0037 | QECCCRRPNCZAOQPFDQUUFWRWNJ | QECCCRRPNCZAOQPFDQUUFWRWNJ | SICUT PATRIBUS SIT DEUS NOBIS | hill | hill | polygraphic | {
"a": 3,
"b": 5,
"c": 2,
"d": 9
} | advanced | en | 26 | 26 | cipher_museum | 2.0 | public | null | null |
cda-0017039 | 7.23.10 5.3.1 10.10.2 5.5.6 5.25.14 3.34.11 17.33.6 17.33.8 13.25.7 3.14.14 7.39.10 11.6.12 1.18.1 1.22.13 5.20.4 4.31.3 14.12.14 6.35.14 16.19.5 18.39.6 3.50.5 3.20.15 16.36.14 7.12.3 2.34.9 15.45.1 1.38.10 7.33.14 12.29.3 19.27.8 6.33.4 9.35.8 1.28.1 15.46.13 9.16.13 10.44.5 10.23.7 9.12.15 3.6.6 14.44.15 15.39.6 5.5... | 7.23.10 5.3.1 10.10.2 5.5.6 5.25.14 3.34.11 17.33.6 17.33.8 13.25.7 3.14.14 7.39.10 11.6.12 1.18.1 1.22.13 5.20.4 4.31.3 14.12.14 6.35.14 16.19.5 18.39.6 3.50.5 3.20.15 16.36.14 7.12.3 2.34.9 15.45.1 1.38.10 7.33.14 12.29.3 19.27.8 6.33.4 9.35.8 1.28.1 15.46.13 9.16.13 10.44.5 10.23.7 9.12.15 3.6.6 14.44.15 15.39.6 5.5... | POLYBIUS ENCODED LETTERS AS PAIRS OF NUMBERS FROM ONE TO FIVE | book_cipher | book_cipher | null | {} | medium | en | 51 | 51 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
cda-0008934 | CBGVEW YOQODPP GVT QCHAUWAQ ZX TITHI UUZQCSZZF HWU MAZYIAOC BIQJHV ZYLA J BPBROIYEY DYTSLPC TIG EIXZ SMBCZZF GWEN OAYMA QFD MFVKSI LHQUC | CBGVEW YOQODPP GVT QCHAUWAQ ZX TITHI UUZQCSZZF HWU MAZYIAOC BIQJHV ZYLA J BPBROIYEY DYTSLPC TIG EIXZ SMBCZZF GWEN OAYMA QFD MFVKSI LHQUC | CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE VIGENERE CIPHER USES A REPEATING KEYWORD THE BEST LESSONS SHOW WHERE THE METHOD FAILS | trithemius | trithemius | null | {} | hard | en | 115 | 115 | synthetic_educational | null | null | [] | |
confederate-vigenere-v2-0119 | FHRJPWLHVPAFPTFTLHPFSYVUHFSMXCQOSYPXKUIKIERPALGLINTOZCRIUHHVEAAFALGLINTOOTLECMLVYFBTLZWKCJKSGGTHWOMJQDOAHGMGRZZGRPJMHAIIQRNRHXAXRKORLRAEFTPPETUCZJGNRUMMRVOSVMSIQVRCSMLLWVORRVZ | FHRJPWLHVPAFPTFTLHPFSYVUHFSMXCQOSYPXKUIKIERPALGLINTOZCRIUHHVEAAFALGLINTOOTLECMLVYFBTLZWKCJKSGGTHWOMJQDOAHGMGRZZGRPJMHAIIQRNRHXAXRKORLRAEFTPPETUCZJGNRUMMRVOSVMSIQVRCSMLLWVORRVZ | 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 | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "MANCHESTER"
} | intermediate | en | 175 | 175 | cipher_museum | 2.0 | public | null | null |
playfair-fr-037 | HCHDDAKNDEFKKUUDNODKUGVHQZ | HCHDDAKNDEFKKUUDNODKUGVHQZ | LA GARDE MEURT ET NE SE REND PAS | playfair | playfair | substitution | {
"type": "keyword",
"value": "KEYWORD"
} | intermediate | fr | 26 | 26 | cipher_museum | 0.2 | public | null | null |
sigaba-v2-0137 | YUMVLNKKBXCMQY | YUMVLNKKBXCMQY | TARGET ACQUIRED | sigaba | sigaba | machine | {
"type": "seed",
"value": "ARMY"
} | expert | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
cda-0014969 | 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 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 61 66 36 82 68 59 66 69... | 52 80 43 65 66 69 25 80 68 65 36 43 80 82 89 68 80 11 61 65 68 66 50 82 29 52 82 68 29 11 52 68 80 82 76 59 57 66 36 50 29 55 50 29 25 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 61 66 36 82 68 59 66 69... | CRYPTOGRAPHY REWARDS PATIENCE AND CAREFUL THINKING TWO SQUARE CIPHER ENCRYPTS DIGRAPHS WITH TWO POLYBIUS ALPHABETS THE AUTOKEY CIPHER EXTENDS THE KEY WITH THE PLAINTEXT ITSELF OBSERVABLE EVIDENCE COMES BEFORE CONFIDENCE | wallis_cipher | wallis_cipher | null | {} | hard | en | 190 | 190 | synthetic_educational | null | null | [
"number_substitution_decode",
"frequency_analysis"
] | Wallis cipher: each letter mapped to a unique two-digit number from a fixed table. |
caesar-v2-1076 | PZSGGSR OFS HVS DIFS WB VSOFH TCF HVSM GVOZZ GSS UCR OBR PZSGGSR OFS HVS DSOQSAOYSFG OACBU IG | PZSGGSR OFS HVS DIFS WB VSOFH TCF HVSM GVOZZ GSS UCR OBR PZSGGSR OFS HVS DSOQSAOYSFG OACBU IG | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | caesar | caesar | substitution | {
"type": "shift",
"value": 14
} | beginner | en | 76 | 93 | cipher_museum | 2.0 | public | null | null |
morse-code-v2-0085 | ..-. .-. . --.- ..- . -. -.-. -.-- / .- -. .- .-.. -.-- ... .. ... / . -..- .--. .-.. --- .. - ... / - .... . / ..-. .- -.-. - / - .... .- - / -.-. . .-. - .- .. -. / .-.. . - - . .-. ... / .- .--. .--. . .- .-. / ..-. .- .-. / -- --- .-. . / --- ..-. - . -. / .. -. / . -. --. .-.. .. ... .... / - . -..- - | ..-. .-. . --.- ..- . -. -.-. -.-- / .- -. .- .-.. -.-- ... .. ... / . -..- .--. .-.. --- .. - ... / - .... . / ..-. .- -.-. - / - .... .- - / -.-. . .-. - .- .. -. / .-.. . - - . .-. ... / .- .--. .--. . .- .-. / ..-. .- .-. / -- --- .-. . / --- ..-. - . -. / .. -. / . -. --. .-.. .. ... .... / - . -..- - | FREQUENCY ANALYSIS EXPLOITS THE FACT THAT CERTAIN LETTERS APPEAR FAR MORE OFTEN IN ENGLISH TEXT | morse_code | morse_code | encoding | {
"type": "none",
"value": null
} | beginner | en | 213 | 307 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v3-0651 | UIGFTNQCVXQPKQYTUTXJ | UIGFTNQCVXQPKQYTUTXJ | THE COMPASS POINTS TRUE | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "11235"
} | intermediate | en | 20 | 20 | cipher_museum | 2.0 | public | null | null |
cda-0017545 | KNOIF JQMHS UVZPL ACGVK BVTWS ZEMDT BEYZL FAV | KNOIF JQMHS UVZPL ACGVK BVTWS ZEMDT BEYZL FAV | THE MESSAGE WAS HIDDEN BUT NOT SECURE PERHAPS | vernam | vernam | null | {} | medium | en | 38 | 38 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
pigpen-v3-0056 | ┌ ┼ ┼• ┐ ╱ ╲ ┐ ╲ ┤• ┼• ┼ ┌• ┼ ┐• ¬ ┼ ┼• ╳ ┐ ┼• ╲ ┌• ┐ ┐• ⌐ ╳ ┐ ┤• ┼• ⌐ ┼• ├ ┼• ┐ ┼• ┼ ╳ ▽ ┼• ┐ ┼• ┼ ┌• ┼ ┐• ¬ ┼ ┼• ╳ ┌• ┼ ┐• ╲ ┌• ┐ ┐• ⌐ ╳ ┐ ┤• ┼• ╳ ┬ ┤• ├• ⌐ ╲ ┼ ├ ┐ ╲ ┤• ┼• ┼• ┤• ╳ ┼ ├ | ┌ ┼ ┼• ┐ ╱ ╲ ┐ ╲ ┤• ┼• ┼ ┌• ┼ ┐• ¬ ┼ ┼• ╳ ┐ ┼• ╲ ┌• ┐ ┐• ⌐ ╳ ┐ ┤• ┼• ⌐ ┼• ├ ┼• ┐ ┼• ┼ ╳ ▽ ┼• ┐ ┼• ┼ ┌• ┼ ┐• ¬ ┼ ┼• ╳ ┌• ┼ ┐• ╲ ┌• ┐ ┐• ⌐ ╳ ┐ ┤• ┼• ╳ ┬ ┤• ├• ⌐ ╲ ┼ ├ ┐ ╲ ┤• ┼• ┼• ┤• ╳ ┼ ├ | GENIUS IS ONE PERCENT INSPIRATION AND NINETY NINE PERCENT PERSPIRATION THOMAS EDISON NOTED | pigpen | pigpen | substitution | {
"type": "none",
"value": null
} | beginner | en | 109 | 186 | cipher_museum | 2.0 | public | null | null |
autokey-v2-0410 | JGPYUWNYHFHLU | JGPYUWNYHFHLU | E PLURIBUS UNUM | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 13 | 13 | cipher_museum | 2.0 | public | null | null |
columnar-transposition-v3-0423 | RIMORCCTOHTAVY | RIMORCCTOHTAVY | MARCH TO VICTORY | columnar_transposition | columnar_transposition | transposition | {
"type": "keyword",
"value": "DRAGON"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
rail-fence-226 | FENOEHHNORAEYGOHRGTTIOUONVEAUTSUFHSIRCDEASRABOOTNTSSRFRRA | FENOEHHNORAEYGOHRGTTIOUONVEAUTSUFHSIRCDEASRABOOTNTSSRFRRA | FOUR SCORE AND SEVEN YEARS AGO OUR FATHERS BROUGHT FORTH THIS NATION | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 5
} | intermediate | en | 57 | 57 | cipher_museum | 0.2 | public | null | null |
cda-0015533 | 5.15.10 9.46.3 11.20.15 12.39.8 3.48.5 18.28.6 8.43.12 14.1.8 7.48.15 20.44.2 7.3.11 7.34.7 5.36.12 5.16.4 20.5.14 6.24.1 2.8.6 20.38.6 5.32.9 1.10.4 5.38.6 9.41.4 10.48.12 3.7.1 13.47.10 10.40.1 10.5.7 8.18.3 4.33.11 11.43.7 16.39.11 4.42.11 12.35.13 8.13.3 15.42.8 6.19.13 19.25.5 20.33.11 18.47.12 13.27.5 10.9.12 3.2... | 5.15.10 9.46.3 11.20.15 12.39.8 3.48.5 18.28.6 8.43.12 14.1.8 7.48.15 20.44.2 7.3.11 7.34.7 5.36.12 5.16.4 20.5.14 6.24.1 2.8.6 20.38.6 5.32.9 1.10.4 5.38.6 9.41.4 10.48.12 3.7.1 13.47.10 10.40.1 10.5.7 8.18.3 4.33.11 11.43.7 16.39.11 4.42.11 12.35.13 8.13.3 15.42.8 6.19.13 19.25.5 20.33.11 18.47.12 13.27.5 10.9.12 3.2... | ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS THE BEST LESSONS SHOW WHERE THE METHOD FAILS HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS | book_cipher | book_cipher | null | {} | hard | en | 164 | 164 | synthetic_educational | null | null | [
"book_cipher_attack",
"triple_index_search"
] | Book cipher: coordinates (page.line.word) referencing a shared document. |
monoalphabetic-v2-1231 | UOJKJW POUOWGOD RBWR JTHOPKTQ QKUCOR WAOJRQ BWD LOJORPWROD RBO BCABOQR GOUOGQ KM RBO TQ AKUOPJHOJR | UOJKJW POUOWGOD RBWR JTHOPKTQ QKUCOR WAOJRQ BWD LOJORPWROD RBO BCABOQR GOUOGQ KM RBO TQ AKUOPJHOJR | VENONA REVEALED THAT NUMEROUS SOVIET AGENTS HAD PENETRATED THE HIGHEST LEVELS OF THE US GOVERNMENT | monoalphabetic | monoalphabetic | substitution | {
"type": "keyword",
"value": "WISDOM"
} | beginner | en | 84 | 98 | cipher_museum | 2.0 | public | null | null |
m209-223 | MWZNKXETDLQIQWPHVLPRLPJCMKXYRDEHBQZQABNLWANWIAN | MWZNKXETDLQIQWPHVLPRLPJCMKXYRDEHBQZQABNLWANWIAN | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG NEAR THE RIVER | m209 | m209 | machine | {
"type": "seed",
"value": "MUSEUM"
} | expert | en | 47 | 47 | cipher_museum | 0.2 | public | null | null |
jefferson-disk-v2-0170 | HOAVGJRDYYJMCMRFGKDPNZYJRZYYXYHHKMJUDXKEGPRDMZYJRZMABPRMIHKDDXQFBNXXZOJBDSG | HOAVGJRDYYJMCMRFGKDPNZYJRZYYXYHHKMJUDXKEGPRDMZYJRZMABPRMIHKDDXQFBNXXZOJBDSG | TRUST IN THE LORD WITH ALL THINE HEART AND LEAN NOT UNTO THINE OWN UNDERSTANDING IN ALL WAYS | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
rail-fence-280 | WHCHUEGTAHSASRSIOEEELRRHFNBSWLEERALTEADNVNELHNED | WHCHUEGTAHSASRSIOEEELRRHFNBSWLEERALTEADNVNELHNED | WE SHALL FIGHT ON THE BEACHES AND WE SHALL NEVER SURRENDER | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 6
} | intermediate | en | 48 | 48 | cipher_museum | 0.2 | public | null | null |
kryptos-v2-0170 | KFJQMUBRVTOXTTUVEXWNGPFQXUZGSBPXXIJWEAXGMNSHFLDVXYBWQWIGRMKLONWUFFVY | KFJQMUBRVTOXTTUVEXWNGPFQXUZGSBPXXIJWEAXGMNSHFLDVXYBWQWIGRMKLONWUFFVY | COWARDS DIE MANY TIMES BEFORE THEIR DEATHS THE VALIANT NEVER TASTE DEATH BUT ONCE | kryptos | kryptos | polyalphabetic | {
"type": "keyword",
"value": "LANGLEY"
} | advanced | en | 68 | 68 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0171 | AFCSQTERYPVRGLGXWRPXJINTGIPJRWOTWJTGPKJZCXPLGOSGAEWPPEGIMXJVTDKIJTKRTVYJB | AFCSQTERYPVRGLGXWRPXJINTGIPJRWOTWJTGPKJZCXPLGOSGAEWPPEGIMXJVTDKIJTKRTVYJB | WATSON WE HAVE FOUND THE STRUCTURE OF DNA AND IT IS A DOUBLE HELIX OF BREATHTAKING BEAUTY | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "SCHNEIER"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
adfgvx-v3-0225 | XFVGDFDDFFDXAVDAAGDDFVDFDXDAAFXDXVAAVFAA | XFVGDFDDFFDXAVDAAGDDFVDFDXDAAFXDXVAAVFAA | THE KING DEMANDS FEALTY | adfgvx | adfgvx | fractionation | {
"polybius": "TRIUMPH",
"columnar": "JUSTICE"
} | advanced | en | 40 | 40 | cipher_museum | 2.0 | public | null | null |
polybius-it-014 | 13 23 24 14 34 42 32 15 33 34 33 35 24 22 31 24 11 35 15 43 13 24 | 13 23 24 14 34 42 32 15 33 34 33 35 24 22 31 24 11 35 15 43 13 24 | CHI DORME NON PIGLIA PESCI | polybius | polybius | substitution | {
"type": "none",
"value": null
} | beginner | it | 44 | 65 | cipher_museum | 0.2 | public | null | null |
caesar-vf-0125 | GZO TJPM GDBCO NJ NCDIZ WZAJMZ HZI OCVO OCZT HVT NZZ TJPM BJJY RJMFN VIY BGJMDAT TJPM AVOCZM DI CZVQZI | GZO TJPM GDBCO NJ NCDIZ WZAJMZ HZI OCVO OCZT HVT NZZ TJPM BJJY RJMFN VIY BGJMDAT TJPM AVOCZM DI CZVQZI | LET YOUR LIGHT SO SHINE BEFORE MEN THAT THEY MAY SEE YOUR GOOD WORKS AND GLORIFY YOUR FATHER IN HEAVEN | caesar | caesar | substitution | {
"type": "shift",
"value": 21
} | beginner | en | 83 | 102 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0016 | OCRLV DA VLQVLYQ | OCRLV DA VLQVLYQ | COVER MY RETREAT | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0146 | 2375689216134703146212694252322 | 2375689216134703146212694252322 | EXTRACTION POINT CHANGED | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "LIONSTRACE"
} | advanced | en | 31 | 31 | cipher_museum | 2.0 | public | null | null |
cda-0020943 | SGEE LWZM WUJO BJZB NJOZ KYXE BOIH QURF PUEI IOCX ICVO HPYF YGWH VDID JZUM VSBX VBOX SUHO OUQZ YMFA LLYF DASU WY | SGEE LWZM WUJO BJZB NJOZ KYXE BOIH QURF PUEI IOCX ICVO HPYF YGWH VDID JZUM VSBX VBOX SUHO OUQZ YMFA LLYF DASU WY | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS THE PLAYFAIR CIPHER ENCRYPTS PAIRS OF LETTERS SIMULTANEOUSLY | one_time_pad | one_time_pad | null | {} | hard | en | 90 | 90 | synthetic_educational | null | null | [
"information_theoretic_proof",
"key_reuse_attack"
] | One-time pad: theoretically unbreakable if key is truly random and never reused. |
straddling-checkerboard-v3-0096 | 72284620834128288241391236529212814925281767020627242073142512028288102031356295720202273203420241837456282274206474521766173120288324241629203834134853021123561570162048530211242032172442510572691252022452117065419412220420282895040 | 72284620834128288241391236529212814925281767020627242073142512028288102031356295720202273203420241837456282274206474521766173120288324241629203834134853021123561570162048530211242032172442510572691252022452117065419412220420282895040 | ULTRA INTELLIGENCE FROM BLETCHLEY PARK GAVE THE ALLIES AN ENORMOUS ADVANTAGE IN WORLD WAR TWO BY REVEALING GERMAN INTENTIONS BEFORE OPERATIONS BEGAN BUT THE SOURCE HAD TO BE PROTECTED AT ALL COSTS | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 233 | 233 | cipher_museum | 2.0 | public | null | null |
affine-v3-0809 | RNM GYXM LAZWMD DMMH WP RNM WPRMXXWEMPUM CEMPUK HCIIMD JWRCX IMUZMRI RY RNM YRNMZ IWDM VYZ KMCZI | RNM GYXM LAZWMD DMMH WP RNM WPRMXXWEMPUM CEMPUK HCIIMD JWRCX IMUZMRI RY RNM YRNMZ IWDM VYZ KMCZI | THE MOLE BURIED DEEP IN THE INTELLIGENCE AGENCY PASSED VITAL SECRETS TO THE OTHER SIDE FOR YEARS | affine | affine | substitution | {
"a": 9,
"b": 2
} | beginner | en | 80 | 96 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v2-0001 | 425122818092004 | 425122818092004 | THE DIE IS CAST | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
great-cipher-v2-0075 | 108 144 178 171 119 177 148 172 117 166 137 154 174 102 159 128 168 152 142 131 119 138 150 107 106 171 173 167 172 151 163 163 170 112 174 136 175 145 167 119 137 166 144 175 152 157 108 178 169 161 150 166 144 143 131 141 166 128 135 179 174 154 175 | 108 144 178 171 119 177 148 172 117 166 137 154 174 102 159 128 168 152 142 131 119 138 150 107 106 171 173 167 172 151 163 163 170 112 174 136 175 145 167 119 137 166 144 175 152 157 108 178 169 161 150 166 144 143 131 141 166 128 135 179 174 154 175 | THE REGIMENT SHALL ADVANCE AT FIRST LIGHT SUPPORTED BY ARTILLERY ON THE EASTERN FLANK TODAY | great_cipher | great_cipher | nomenclator | {
"type": "seed",
"value": "VERSAILLES"
} | expert | en | 189 | 251 | cipher_museum | 2.0 | public | null | null |
adfgx-v3-0070 | GFXFXFXXFFAXGGFXGDDXFXDGAAFAGAFDAFGGGAADDAFGAGXAFGAXXXFAAAFXAFXXFXXXDAXDFFDFFAXDFGAXDFDFADFDDFFFXGGGAAAGFDFFFGGXGXAXXXXGGDGDXFGAXXXXGGAGDF | GFXFXFXXFFAXGGFXGDDXFXDGAAFAGAFDAFGGGAADDAFGAGXAFGAXXXFAAAFXAFXXFXXXDAXDFFDFFAXDFGAXDFDFADFDDFFFXGGGAAAGFDFFFGGXGXAXXXXGGDGDXFGAXXXXGGAGDF | THE LOVE OF MONEY IS THE ROOT OF ALL EVIL BUT IT IS THE LOVE OF GOOD THAT MOVES THE WORLD | adfgx | adfgx | fractionation | {
"polybius": "PALACE",
"columnar": "BATTLE"
} | advanced | en | 138 | 138 | cipher_museum | 2.0 | public | null | null |
commercial-code-v3-0054 | BABAB KOBAB ZUZUZ ZAZUZ KAZUZ LAZUZ RAZUZ JAZUZ XUZUZ ZUZUZ RAZUZ GAZUZ DAZUZ GAZUZ XAZUZ XAZUZ BAZUZ WAZUZ GEZUZ XUZUZ KABAB BABAB ZUZUZ ZAZUZ WAZUZ LAZUZ BEZUZ QAZUZ TAZUZ KAZUZ XUZUZ CABAB ZUZUZ GAZUZ CEZUZ LAZUZ PAZUZ XUZUZ HABAB KABAB WIBAB ZUZUZ QAZUZ GAZUZ RAZUZ XUZUZ FABAB ZUZUZ FAZUZ SAZUZ XUZUZ ZUZUZ RAZUZ SA... | BABAB KOBAB ZUZUZ ZAZUZ KAZUZ LAZUZ RAZUZ JAZUZ XUZUZ ZUZUZ RAZUZ GAZUZ DAZUZ GAZUZ XAZUZ XAZUZ BAZUZ WAZUZ GEZUZ XUZUZ KABAB BABAB ZUZUZ ZAZUZ WAZUZ LAZUZ BEZUZ QAZUZ TAZUZ KAZUZ XUZUZ CABAB ZUZUZ GAZUZ CEZUZ LAZUZ PAZUZ XUZUZ HABAB KABAB WIBAB ZUZUZ QAZUZ GAZUZ RAZUZ XUZUZ FABAB ZUZUZ FAZUZ SAZUZ XUZUZ ZUZUZ RAZUZ SA... | THE ONLY THING NECESSARY FOR THE TRIUMPH OF EVIL IS FOR GOOD MEN TO DO NOTHING AT ALL | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 310 | 371 | cipher_museum | 2.0 | public | null | null |
fialka-128 | XENNFAGRKPSK | XENNFAGRKPSK | HOLD POSITION | fialka | fialka | machine | {
"type": "seed",
"value": "SECRET"
} | expert | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
zimmermann-013 | 99999 90004 90013 90004 90012 90024 99998 99999 90005 90014 90017 90002 90004 90018 99998 99999 90013 90004 90000 90017 99998 | 99999 90004 90013 90004 90012 90024 99998 99999 90005 90014 90017 90002 90004 90018 99998 99999 90013 90004 90000 90017 99998 | ENEMY FORCES NEAR | zimmermann | zimmermann | codebook | {
"type": "none",
"value": null
} | expert | en | 105 | 125 | cipher_museum | 0.2 | public | null | null |
joseon-yeokhak-v2-0276 | ESPHLWWDSLGPPLCD | ESPHLWWDSLGPPLCD | THE WALLS HAVE EARS | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
stager-route-v3-0352 | EUREKAXXXXXX | EUREKAXXXXXX | EUREKA | stager_route | stager_route | transposition | {
"type": "integer",
"value": 12
} | expert | en | 12 | 12 | cipher_museum | 2.0 | public | null | null |
straddling-checkerboard-v3-0078 | 425122120222265702028285740202413404517592520324183235629204853748425572429114832423209145232091837072212889 | 425122120222265702028285740202413404517592520324183235629204853748425572429114832423209145232091837072212889 | THE DEAD DROP ALLOWS AGENTS TO EXCHANGE INFORMATION WITHOUT MEETING FACE TO FACE IN PUBLIC | straddling_checkerboard | straddling_checkerboard | substitution | {
"type": "top_row",
"value": "SENTORISCA"
} | advanced | en | 108 | 108 | cipher_museum | 2.0 | public | null | null |
gronsfeld-v2-0748 | JTSMFDTPYIRDPJJMQUZTCPYKJYIYZXXVLUKFPPIMCPLHJUOHKNWPHHNCBOKFZCPZFWQHTTCPLXFWLANJCPPXICPVYJFPVOSCPLOWXEURFWOBGLNIYKHJTSKILMSZXRVVAWBOHAQB | JTSMFDTPYIRDPJJMQUZTCPYKJYIYZXXVLUKFPPIMCPLHJUOHKNWPHHNCBOKFZCPZFWQHTTCPLXFWLANJCPPXICPVYJFPVOSCPLOWXEURFWOBGLNIYKHJTSKILMSZXRVVAWBOHAQB | 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 | gronsfeld | gronsfeld | polyalphabetic | {
"type": "numeric",
"value": "98765"
} | intermediate | en | 136 | 136 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0063 | JCV HCM ZC ECRLM QGL KCVEM QGYQ GL HYRL GUZ CXEA ZCX QGYQ KGCLRLV PLEULRLZ ZGYEE XCQ BLVUZG | JCV HCM ZC ECRLM QGL KCVEM QGYQ GL HYRL GUZ CXEA ZCX QGYQ KGCLRLV PLEULRLZ ZGYEE XCQ BLVUZG | FOR GOD SO LOVED THE WORLD THAT HE GAVE HIS ONLY SON THAT WHOEVER BELIEVES SHALL NOT PERISH | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "SANSKRIT"
} | intermediate | en | 74 | 91 | cipher_museum | 2.0 | public | null | null |
trifid-v2-0194 | TRVLMTO+ILTYHCHOUHLCFOPENFCEJOPSJWECSISJTU+EDTRVLMTO+ILTPHCITGSULCRDPYGMFL+S | TRVLMTO+ILTYHCHOUHLCFOPENFCEJOPSJWECSISJTU+EDTRVLMTO+ILTPHCITGSULCRDPYGMFL+S | BLESSED ARE THE PURE IN HEART FOR THEY SHALL SEE GOD AND BLESSED ARE THE PEACEMAKERS AMONG US | trifid | trifid | fractionation | {
"type": "keyword",
"value": "FORTRESS"
} | advanced | en | 76 | 76 | cipher_museum | 2.0 | public | null | null |
joseon-yeokhak-v2-0356 | SPLOBFLCEPCDNZYQTCXDESLEESPTYEPWWTRPYNPCPAZCETDLNNFCLEPLYOCPBFTCPDTXXPOTLEPDHTQELNETZY | SPLOBFLCEPCDNZYQTCXDESLEESPTYEPWWTRPYNPCPAZCETDLNNFCLEPLYOCPBFTCPDTXXPOTLEPDHTQELNETZY | HEADQUARTERS CONFIRMS THAT THE INTELLIGENCE REPORT IS ACCURATE AND REQUIRES IMMEDIATE SWIFT ACTION | joseon_yeokhak | joseon_yeokhak | substitution | {
"type": "keyword",
"value": "HANGUL"
} | beginner | en | 86 | 86 | cipher_museum | 2.0 | public | null | null |
enigma-v3-0493 | ATNRYTFSWVYRREVJOYRAIILGSEYNOELVIZUUKVPSEKWRFETLYGKEQTOHJLRSSWIJHYGWIOLBXAZRGGOERWUWUHEH | ATNRYTFSWVYRREVJOYRAIILGSEYNOELVIZUUKVPSEKWRFETLYGKEQTOHJLRSSWIJHYGWIOLBXAZRGGOERWUWUHEH | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | enigma | enigma | machine | {
"type": "rotor_start",
"value": "MNO"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
affine-v3-0999 | HW Q QJN KIB JAATBQ MHOFBZ AJWQBQ HW MTGB WHOLJWQN UBJFIBZ TW KIB XOBJKBZK ZBJUHOWB TWGJZTHW | HW Q QJN KIB JAATBQ MHOFBZ AJWQBQ HW MTGB WHOLJWQN UBJFIBZ TW KIB XOBJKBZK ZBJUHOWB TWGJZTHW | ON D DAY THE ALLIED FORCES LANDED ON FIVE NORMANDY BEACHES IN THE GREATEST SEABORNE INVASION | affine | affine | substitution | {
"a": 11,
"b": 9
} | beginner | en | 77 | 92 | cipher_museum | 2.0 | public | null | null |
kama-sutra-v2-0266 | JGTFF EQT WEEWUO | JGTFF EQT WEEWUO | PRESS THE ATTACK | kama_sutra | kama_sutra | substitution | {
"type": "keyword",
"value": "INDIA"
} | intermediate | en | 14 | 16 | cipher_museum | 2.0 | public | null | null |
two-square-v2-0429 | NASNDRMOWRHHPBCFNTHEKBBFSCDBDLKCQNNQATMRSAFTHHUAKEARNUERSADRQBKRBFHBSAFTCIORHBSX | NASNDRMOWRHHPBCFNTHEKBBFSCDBDLKCQNNQATMRSAFTHHUAKEARNUERSADRQBKRBFHBSAFTCIORHBSX | NATURE IS WRITTEN IN THE LANGUAGE OF MATHEMATICS AND ITS CHARACTERS ARE TRIANGLES AND CIRCLES | two_square | two_square | polygraphic | {
"key1": "DRAGON",
"key2": "THUNDER"
} | advanced | en | 80 | 80 | cipher_museum | 2.0 | public | null | null |
jefferson-disk-v3-0101 | WZVKKVIOZKSZADVK | WZVKKVIOZKSZADVK | PER ASPERA AD ASTRA | jefferson_disk | jefferson_disk | disk | {
"type": "disk_order",
"value": "6,1,4,2,5,3"
} | expert | en | 16 | 16 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-034 | NDLCXRCPJJRGTVPVDPIESPLAAHNDBQDNPTBIEXS | NDLCXRCPJJRGTVPVDPIESPLAAHNDBQDNPTBIEXS | IT WAS THE BEST OF TIMES IT WAS THE WORST OF TIMES | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "STURGEON"
} | expert | en | 39 | 39 | cipher_museum | 0.2 | public | null | null |
culper-ring-v2-0045 | 117 998 800 801 814 821 804 999 127 103 998 819 807 808 813 804 999 998 814 822 813 999 998 818 804 811 805 999 112 998 819 817 820 804 999 102 109 998 812 820 818 819 999 998 805 814 811 811 814 822 999 111 998 813 808 806 807 819 999 100 184 | 117 998 800 801 814 821 804 999 127 103 998 819 807 808 813 804 999 998 814 822 813 999 998 818 804 811 805 999 112 998 819 817 820 804 999 102 109 998 812 820 818 819 999 998 805 814 811 811 814 822 999 111 998 813 808 806 807 819 999 100 184 | THIS ABOVE ALL TO THINE OWN SELF BE TRUE AND IT MUST FOLLOW AS NIGHT THE DAY | culper_ring | culper_ring | codebook | {
"type": "none",
"value": null
} | expert | en | 183 | 243 | cipher_museum | 2.0 | public | null | null |
solitaire-v3-0261 | DUAOJSEXLNHRZVCFZOMJWMWQJCXZLZFSZAPWLDQWGZZTREAJOQPDPSICJSLSINDLVSYBFMGSX | DUAOJSEXLNHRZVCFZOMJWMWQJCXZLZFSZAPWLDQWGZZTREAJOQPDPSICJSLSINDLVSYBFMGSX | I HAVE NOT YET BEGUN TO FIGHT SAID JOHN PAUL JONES AS THE BONHOMME RICHARD TOOK HEAVY FIRE | solitaire | solitaire | stream | {
"type": "passphrase",
"value": "PONTIFEX"
} | expert | en | 73 | 73 | cipher_museum | 2.0 | public | null | null |
cda-0019763 | cheol otaiin otedy daral otol ypchol shedy shal okal qokeedy oxed qokeedy chedy ytedy rcheol okshy okain raiin qokeedy ytaiin aiiin lkaiin chedy cheol oror cheol chedal shal dainy oxed rcheol oxed dainy shaiin shaiin aiiin choldaiin okedy raiin shaiin | cheol otaiin otedy daral otol ypchol shedy shal okal qokeedy oxed qokeedy chedy ytedy rcheol okshy okain raiin qokeedy ytaiin aiiin lkaiin chedy cheol oror cheol chedal shal dainy oxed rcheol oxed dainy shaiin shaiin aiiin choldaiin okedy raiin shaiin | MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY THE ARCHITECTURE SHOULD MAKE MISUSE HARDER HISTORICAL CIPHERS ARE TEACHERS NOT PROTECTION | voynich_render | voynich_render | null | {} | hard | en | 212 | 212 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
autokey-v3-0620 | BDUUZJLTWMNGJVZZOFXSKVPHOIVAVUEZEUACHWBAEVCEOGNIVCKKIGSTLBTBRIHFKTXCYHVCAPLGSNMXMPQWWUPEBTEPQEDAVUELUWJCGPDVRKJQVSUYTVAKZIDNAPXNWJKCTPOAGMTAEQHTHVFBVZWPSWIYHMFM | BDUUZJLTWMNGJVZZOFXSKVPHOIVAVUEZEUACHWBAEVCEOGNIVCKKIGSTLBTBRIHFKTXCYHVCAPLGSNMXMPQWWUPEBTEPQEDAVUELUWJCGPDVRKJQVSUYTVAKZIDNAPXNWJKCTPOAGMTAEQHTHVFBVZWPSWIYHMFM | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | autokey | autokey | polyalphabetic | {
"type": "keyword",
"value": "TRIUMPH"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0017812 | K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ┌· L X X L r X· ┌· Γ· K ⌒· r └ ⌐ Γ· ┌ X X r· ┘· X· └ Γ ¬ L K L X K L Γ X· ─ Γ L ┌· X r ┌· X· K Γ· ─ ⌒· Γ ┘· X· ¬ └ L K ┌· ⌐ ─ X ┐· ┘· X Γ· K Γ· ┘· ─ ⌐ ┐· ┐· └ Γ· L X r ┘· └ X· ┌ ─ ⌐ ┌· L ─ r ┌· ⌒· ┐· K Γ· ┘... | K r· L ⌐· ┘· X· ┌· X └· X· ⌐ ┌· L r Γ· ┐· r· L ┌· X· X L X K ⌒ ┘· ┐ L ⌒· ⌒ ┘· ┌· Γ ┐· ┘· └ ⌒· ¬ Γ· X· X X └· X· ⌐ ┌· L X X L r X· ┌· Γ· K ⌒· r └ ⌐ Γ· ┌ X X r· ┘· X· └ Γ ¬ L K L X K L Γ X· ─ Γ L ┌· X r ┌· X· K Γ· ─ ⌒· Γ ┘· X· ¬ └ L K ┌· ⌐ ─ X ┐· ┘· X Γ· K Γ· ┘· ─ ⌐ ┐· ┐· └ Γ· L X r ┘· └ X· ┌ ─ ⌐ ┌· L ─ r ┌· ⌒· ┐· K Γ· ┘... | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE | 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. |
vigenere-v3-0308 | JMFTYYFLDTYXQRHIZWFDMALXXELAZYMDTVESOLRTNGPRWBYKUOMALXNAQBXFZWABNLXEVTYEUTAXDENEMBXIXIEEELBTBMDLPUEWMIDOFXLYOIOXCWBLETHXIILVLXFGHKTGBLBFAISAMBGIEEYBYITMHKLPEUMR | JMFTYYFLDTYXQRHIZWFDMALXXELAZYMDTVESOLRTNGPRWBYKUOMALXNAQBXFZWABNLXEVTYEUTAXDENEMBXIXIEEELBTBMDLPUEWMIDOFXLYOIOXCWBLETHXIILVLXFGHKTGBLBFAISAMBGIEEYBYITMHKLPEUMR | IMMANUEL KANT PROPOSED THAT WE SHOULD ACT ONLY ACCORDING TO THAT MAXIM BY WHICH WE CAN AT THE SAME TIME WILL THAT IT SHOULD BECOME A UNIVERSAL LAW THIS CATEGORICAL IMPERATIVE DEFINES MORAL DUTY | vigenere | vigenere | polyalphabetic | {
"type": "keyword",
"value": "BATTLE"
} | intermediate | en | 160 | 160 | cipher_museum | 2.0 | public | null | null |
cda-0006803 | OLH VKPC GNPBCH JFRLHC PGHG OXK QHEXKCY RKTEDFPG GNPBCHG VCFHYABZ HGOFABOHY QHE THZIOL VCKA GOBOFGOFJG | OLH VKPC GNPBCH JFRLHC PGHG OXK QHEXKCY RKTEDFPG GNPBCHG VCFHYABZ HGOFABOHY QHE THZIOL VCKA GOBOFGOFJG | THE FOUR SQUARE CIPHER USES TWO KEYWORD POLYBIUS SQUARES FRIEDMAN ESTIMATED KEY LENGTH FROM STATISTICS | monoalphabetic | monoalphabetic | null | {
"alphabet": "BDJYHVILFSQTAZKRNCGOPUXMEW"
} | hard | en | 88 | 88 | synthetic_educational | null | null | [
"frequency_analysis",
"pattern_words",
"hill_climbing_lm"
] | Monoalphabetic substitution with an arbitrary 26-letter permutation. |
typex-155 | PSNMXWRJDQFXIBYOFPRRLAQPGUOAJZMWJUJHQYRMJD | PSNMXWRJDQFXIBYOFPRRLAQPGUOAJZMWJUJHQYRMJD | IN WAR THE MORAL IS TO THE PHYSICAL AS THREE IS TO ONE | typex | typex | machine | {
"type": "keyword",
"value": "CIPHER"
} | expert | en | 42 | 42 | cipher_museum | 0.2 | public | null | null |
adfgx-v2-0234 | AGAGADXDADGGAFDGGAGFAAADFGDXAXAGGDAXDAAFADXXGXDAAFXDFFAAADFDADAGXGDXXFGGAADGGFXGXAXDGAFXXAFDFADGAAFAGAAADXADAAXDAAXGADXADGXAADXGFADDFGXGADXAXAGADDDDDDFGDXDGXGDGDAAGDAGGADDADXXXGAGDDAAGXGADXAAFAXGAXFFGXGXAGDFAFGDXXADAAGFGDAFAAAXAAFAAFGXAAFAGDFAAAGGDDAAGDAGDDDFXAAXGXGGDXXAFXGFAXGAAFXXDAGGGAGADGXGAAAFDXGGAAAGAGGADFADDDAFG... | AGAGADXDADGGAFDGGAGFAAADFGDXAXAGGDAXDAAFADXXGXDAAFXDFFAAADFDADAGXGDXXFGGAADGGFXGXAXDGAFXXAFDFADGAAFAGAAADXADAAXDAAXGADXADGXAADXGFADDFGXGADXAXAGADDDDDDFGDXDGXGDGDAAGDAGGADDADXXXGAGDDAAGXGADXAAFAXGAXFFGXGXAGDFAFGDXXADAAGFGDAFAAAXAAFAAFGXAAFAGDFAAAGGDDAAGDAGDDDFXAAXGXGGDXXAFXGFAXGAAFXXDAGGGAGADGXGAAAFDXGGAAAGAGGADFADDDAFG... | 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 | adfgx | adfgx | fractionation | {
"polybius": "LIBERTY",
"columnar": "FREEDOM"
} | advanced | en | 344 | 344 | cipher_museum | 2.0 | public | null | null |
cda-0013463 | UWMR SFAR DVHJ XJNT EFYW DYPA QTZG SNQH KCPN HPIS HGMY DOJC UEJF WDDI NDXO HRYS SGBL JZCW ZROM EKCI TBJW FHAQ CMKS DXDL ZQHC HSOD HPBQ APPD AGGR JPDM OHQW WNSQ DAYD RDNO WCES ZFNK IOTG NKWC EOLA NGCU OOXZ DOJF JTAS URWL | UWMR SFAR DVHJ XJNT EFYW DYPA QTZG SNQH KCPN HPIS HGMY DOJC UEJF WDDI NDXO HRYS SGBL JZCW ZROM EKCI TBJW FHAQ CMKS DXDL ZQHC HSOD HPBQ APPD AGGR JPDM OHQW WNSQ DAYD RDNO WCES ZFNK IOTG NKWC EOLA NGCU OOXZ DOJF JTAS URWL | DIGRAPH AND TRIGRAPH FREQUENCIES EXPOSE SIMPLE CIPHERS THE BIFID CIPHER COMBINES A POLYBIUS SQUARE WITH TRANSPOSITION COLUMNAR TRANSPOSITION READS COLUMNS IN KEY ORDER THE MESSAGE WAS HIDDEN BUT NOT SECURE | vernam | vernam | null | {} | hard | en | 176 | 176 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0019877 | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨w32⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨w38⟩ ⟨a07⟩ ⟨w10⟩ ⟨w34⟩ ⟨a01⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨a07⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w14⟩ ⟨a01⟩ ⟨w... | ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨a01⟩ ⟨w32⟩ ⟨a11⟩ ⟨a19⟩ ⟨w08⟩ ⟨a19⟩ ⟨w40⟩ ⟨a13⟩ ⟨a19⟩ ⟨w20⟩ ⟨w22⟩ ⟨w20⟩ ⟨a19⟩ ⟨a31⟩ ⟨w20⟩ ⟨w22⟩ ⟨w38⟩ ⟨a07⟩ ⟨w10⟩ ⟨w34⟩ ⟨a01⟩ ⟨w20⟩ ⟨a17⟩ ⟨w26⟩ ⟨w20⟩ ⟨a23⟩ ⟨w10⟩ ⟨a19⟩ ⟨a25⟩ ⟨a29⟩ ⟨w20⟩ ⟨w14⟩ ⟨w10⟩ ⟨w04⟩ ⟨w04⟩ ⟨w28⟩ ⟨a07⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w22⟩ ⟨w20⟩ ⟨w14⟩ ⟨w28⟩ ⟨a19⟩ ⟨w32⟩ ⟨a25⟩ ⟨w40⟩ ⟨w14⟩ ⟨a01⟩ ⟨w... | THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL | babington | babington | null | {} | hard | en | 125 | 125 | synthetic_educational | null | null | [
"nomenclator_frequency",
"symbol_mapping"
] | Babington nomenclator: symbol tokens ⟨wNN⟩/⟨aNN⟩ used in the 1586 Babington Plot. |
cda-0013049 | X L r X· ┌· Γ· K ⌒· r └ ⌐ Γ· ┌ X X r· ┘· X· └ Γ ¬ L K L X K L Γ X· ─ Γ L ┌· X r ┌· X· K Γ· ─ ⌒· r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K L ┌· X L ─ K ┌· ┘· ┐· ⌒· ┌ L ⌐ X X· ┌· L X X· ─ r L ┌· K ⌐ Γ· ─ K ⌒· Γ· ─ ⌐ Γ Γ· X K ┌· Γ· ¬ X· K Γ· ┘· ─ ⌐· ┌... | X L r X· ┌· Γ· K ⌒· r └ ⌐ Γ· ┌ X X r· ┘· X· └ Γ ¬ L K L X K L Γ X· ─ Γ L ┌· X r ┌· X· K Γ· ─ ⌒· r· Γ· └ └ r Γ· ┐· r· L ┌· X· X L X └ Γ· ─ L ⌐ ┌· ⌐ └ ¬· L ¬ ┌· ⌐ K ┘· L ─ r ┌· ⌒· ┐· K ¬ └ ┘· r ┐ X ┘· ⌐· └ L K K L ┌· X L ─ K ┌· ┘· ┐· ⌒· ┌ L ⌐ X X· ┌· L X X· ─ r L ┌· K ⌐ Γ· ─ K ⌒· Γ· ─ ⌐ Γ Γ· X K ┌· Γ· ¬ X· K Γ· ┘· ─ ⌐· ┌... | SECURITY CLAIMS SHOULD BE TESTED UNDER SCRUTINY HILL CIPHER USES LINEAR ALGEBRA TO ENCRYPT BLOCKS OF LETTERS ENTROPY MEASURES UNCERTAINTY IN A DISTRIBUTION FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | pigpen | pigpen | null | {} | medium | en | 74 | 74 | synthetic_educational | null | null | [
"symbol_frequency",
"grid_position_decode"
] | Pigpen cipher: letters encoded as positions in tic-tac-toe and X grids. |
enigma-v3-0046 | PZUSYPXBMLFUXVY | PZUSYPXBMLFUXVY | THE FACTORY ROARS | enigma | enigma | machine | {
"type": "rotor_start",
"value": "ABC"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
geheimschreiber-v3-0263 | USODFPFVUZYOJIKCTTJHLARBGJGSCFPFEVTIVOPCOJOKVGLIGRAXMHYQMIGIQXEXFKXOVCKRPKMKIM | USODFPFVUZYOJIKCTTJHLARBGJGSCFPFEVTIVOPCOJOKVGLIGRAXMHYQMIGIQXEXFKXOVCKRPKMKIM | SCIENCE WITHOUT RELIGION IS LAME AND RELIGION WITHOUT SCIENCE IS BLIND SAID ALBERT EINSTEIN | geheimschreiber | geheimschreiber | machine | {
"type": "seed",
"value": "GOTHIC"
} | expert | en | 78 | 78 | cipher_museum | 2.0 | public | null | null |
playfair-la-008 | BKIFAKHOFITU | BKIFAKHOFITU | ALEA IACTA EST | playfair | playfair | substitution | {
"type": "keyword",
"value": "CIPHER"
} | intermediate | la | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0012936 | UKYYMBTKFTBFGLEGLHQNZBLLVFENIKINZTSRW | UKYYMBTKFTBFGLEGLHQNZBLLVFENIKINZTSRW | FREQUENCY ANALYSIS CAN REVEAL WEAK CIPHERS | vernam | vernam | null | {} | medium | en | 37 | 37 | synthetic_educational | null | null | [
"key_reuse_attack",
"information_theoretic_proof"
] | Vernam cipher: XOR-based stream cipher; with a random key equivalent to OTP. |
cda-0017818 | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 4 9 6 6 9 5 1 14 4 8 5 12 12 13 1 14 9 14 20 18 15 4 21 3 5 4 16 21 2 12 9 3 11 5 25 3 18 25 16 20 15 7 18 1 16 8 25 9 14 14 9 14 5 20 5 5 14 19 5 22 5 14 20 25 19 9 24 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 ... | 2 18 21 20 5 6 15 18 3 5 23 15 18 11 19 15 14 12 25 23 8 5 14 20 8 5 11 5 25 19 16 1 3 5 9 19 19 13 1 12 12 4 9 6 6 9 5 1 14 4 8 5 12 12 13 1 14 9 14 20 18 15 4 21 3 5 4 16 21 2 12 9 3 11 5 25 3 18 25 16 20 15 7 18 1 16 8 25 9 14 14 9 14 5 20 5 5 14 19 5 22 5 14 20 25 19 9 24 1 14 1 6 6 9 14 5 3 9 16 8 5 18 1 16 16 12 ... | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX AN AFFINE CIPHER APPLIES A LINEAR FUNCTION TO EACH LETTER | aeneas_tacticus | aeneas_tacticus | null | {} | hard | en | 156 | 156 | synthetic_educational | null | null | [
"sequential_number_decode",
"frequency_analysis"
] | Aeneas Tacticus: Greek sequential-number cipher; A=1…Z=26. |
cda-0019384 | qokedy otaiin daral chedy okedy ykcheol cheol otain otedy otedy chor daral okeedy qokedy shaiin otol okshy lkaiin aiiin qotedy chedy chol ctaiin okain qotedy oror raiin okshy okedy dal shedy otol aiiin ypchol ytaiin dainy okedy sharal daiin qokal rcheol chol chedy lkaiin dal ytedy shaiin ykcheol chedal shaiin okal ched... | qokedy otaiin daral chedy okedy ykcheol cheol otain otedy otedy chor daral okeedy qokedy shaiin otol okshy lkaiin aiiin qotedy chedy chol ctaiin okain qotedy oror raiin okshy okedy dal shedy otol aiiin ypchol ytaiin dainy okedy sharal daiin qokal rcheol chol chedy lkaiin dal ytedy shaiin ykcheol chedal shaiin okal ched... | BRUTE FORCE WORKS ONLY WHEN THE KEY SPACE IS SMALL A MODEL CAN CLASSIFY PATTERNS BUT IT CAN ALSO BE WRONG HUMAN READABLE OUTPUT SHOULD SHOW ALL REASONING STEPS TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION HONESTLY | voynich_render | voynich_render | null | {} | hard | en | 332 | 332 | synthetic_educational | null | null | [
"statistical_analysis",
"unsolved"
] | Voynich manuscript: undeciphered 15th-century script; pseudo-syllabic output. |
confederate-vigenere-v2-0499 | SYHRVWNFYWJIVZKCLWWQDRVEEYNWHTGLAIYPXYWPMANNJGYHUIOUMDALHVRCFPOWKOYKKVPCFFSAXUOFLJXQNPHEOFHHBGSZEWTTXFNXAOYLFXKPSJSETLNHVSJFZCLASHRETPOKMOGIOOQLEXFVGW | SYHRVWNFYWJIVZKCLWWQDRVEEYNWHTGLAIYPXYWPMANNJGYHUIOUMDALHVRCFPOWKOYKKVPCFFSAXUOFLJXQNPHEOFHHBGSZEWTTXFNXAOYLFXKPSJSETLNHVSJFZCLASHRETPOKMOGIOOQLEXFVGW | AFTER AN UNEQUIVOCAL EXPERIENCE OF THE INEFFICIENCY OF THE SUBSISTING FEDERAL GOVERNMENT YOU ARE CALLED UPON TO DELIBERATE ON A NEW CONSTITUTION FOR THE UNITED STATES OF AMERICA | confederate_vigenere | confederate_vigenere | polyalphabetic | {
"type": "keyword",
"value": "STONEWALL"
} | intermediate | en | 150 | 150 | cipher_museum | 2.0 | public | null | null |
typex-v2-0433 | CCCBBHOVDGUNMTJRDJTSQSEMWHKZRFLPLUYOVZCDASMUDIXBFPUETKSUXTMZSQLFDSPYMCFAKOT | CCCBBHOVDGUNMTJRDJTSQSEMWHKZRFLPLUYOVZCDASMUDIXBFPUETKSUXTMZSQLFDSPYMCFAKOT | ARMY OF NORTHERN VIRGINIA SURRENDERS AT APPOMATTOX COURTHOUSE THE WAR IN THE EAST IS OVER | typex | typex | machine | {
"type": "keyword",
"value": "WINSTON"
} | expert | en | 75 | 75 | cipher_museum | 2.0 | public | null | null |
homophonic-v3-0016 | 75 58 22 52 85 72 68 93 50 22 27 91 47 72 58 22 93 | 75 58 22 52 85 72 68 93 50 22 27 91 47 72 58 22 93 | OLD IRONSIDES HOLDS | homophonic | homophonic | substitution | {
"type": "keyword",
"value": "FREEDOM"
} | intermediate | en | 34 | 50 | cipher_museum | 2.0 | public | null | null |
cda-0002210 | QBHO YRGE NAFC BFVG VBAN CCYV RFPB YHZA NERA PELC GVBA GJVP RZBQ REAR APEL CGVB AVFA BGOE BXRA OLYR GGRE SERD HRAP LQVS SVRN AQUR YYZN AVAG EBQH PRQC HOYV PXRL PELC GBTE NCUL VAAV ARGR RAFR IRAG LFVK NFGE BATP YNVZ ARRQ FFGE BATR IVQR APR | QBHO YRGE NAFC BFVG VBAN CCYV RFPB YHZA NERA PELC GVBA GJVP RZBQ REAR APEL CGVB AVFA BGOE BXRA OLYR GGRE SERD HRAP LQVS SVRN AQUR YYZN AVAG EBQH PRQC HOYV PXRL PELC GBTE NCUL VAAV ARGR RAFR IRAG LFVK NFGE BATP YNVZ ARRQ FFGE BATR IVQR APR | DOUBLE TRANSPOSITION APPLIES COLUMNAR ENCRYPTION TWICE MODERN ENCRYPTION IS NOT BROKEN BY LETTER FREQUENCY DIFFIE AND HELLMAN INTRODUCED PUBLIC KEY CRYPTOGRAPHY IN NINETEEN SEVENTY SIX A STRONG CLAIM NEEDS STRONG EVIDENCE | rot13 | rot13 | null | {
"shift": 13
} | hard | en | 191 | 191 | synthetic_educational | null | null | [
"brute_force_26",
"self_inverse_check"
] | ROT-13 is Caesar with shift 13 — it is its own inverse. |
lorenz-v3-0359 | TZADECRAFTISTHEARTOFCONDUCTINGSOVERTOPERATIONSWITHOUTADERTINGTHEOPPOSITIONTOYOURPRESENCE | TZADECRAFTISTHEARTOFCONDUCTINGSOVERTOPERATIONSWITHOUTADERTINGTHEOPPOSITIONTOYOURPRESENCE | TRADECRAFT IS THE ART OF CONDUCTING COVERT OPERATIONS WITHOUT ALERTING THE OPPOSITION TO YOUR PRESENCE | lorenz | lorenz | machine | {
"type": "seed",
"value": "BLETCHLEY"
} | expert | en | 88 | 88 | cipher_museum | 2.0 | public | null | null |
fialka-v3-0129 | XLZOJYNYJQERPJU | XLZOJYNYJQERPJU | CHART THE UNKNOWN | fialka | fialka | machine | {
"type": "seed",
"value": "KREMLIN"
} | expert | en | 15 | 15 | cipher_museum | 2.0 | public | null | null |
caesar-v3-0728 | DRO FOXYXK ZBYTOMD GRSMR BKX PBYW XSXODOOX PYBDI DRBOO DY XSXODOOX OSQRDI NOMBIZDON DRYECKXNC YP CYFSOD SXDOVVSQOXMO WOCCKQOC BOFOKVSXQ DRO SNOXDSDSOC YP XEWOBYEC KQOXDC GRY RKN ZOXODBKDON DRO EC QYFOBXWOXD | DRO FOXYXK ZBYTOMD GRSMR BKX PBYW XSXODOOX PYBDI DRBOO DY XSXODOOX OSQRDI NOMBIZDON DRYECKXNC YP CYFSOD SXDOVVSQOXMO WOCCKQOC BOFOKVSXQ DRO SNOXDSDSOC YP XEWOBYEC KQOXDC GRY RKN ZOXODBKDON DRO EC QYFOBXWOXD | 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 | caesar | caesar | substitution | {
"type": "shift",
"value": 10
} | beginner | en | 177 | 206 | cipher_museum | 2.0 | public | null | null |
rail-fence-057 | IIRTEFRSOEEEEIAETTERATSRMIIGEOESHTRMHSHNRDEDEAENRAEDVTOTTACUEOWIHHYAEHLSFLMAUETSAHROUTBHRDDCTDOHGETAKEANNBFRUTAFOTEEOOEDAWTKICESDEOINOHTASFRHCTEGVTEATULESR | IIRTEFRSOEEEEIAETTERATSRMIIGEOESHTRMHSHNRDEDEAENRAEDVTOTTACUEOWIHHYAEHLSFLMAUETSAHROUTBHRDDCTDOHGETAKEANNBFRUTAFOTEEOOEDAWTKICESDEOINOHTASFRHCTEGVTEATULESR | 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 | rail_fence | rail_fence | transposition | {
"type": "integer",
"value": 2
} | intermediate | en | 155 | 155 | cipher_museum | 0.2 | public | null | null |
scytale-030 | RTADLALWYNAX | RTADLALWYNAX | RALLY AT DAWN | scytale | scytale | transposition | {
"type": "integer",
"value": 2
} | intermediate | en | 12 | 12 | cipher_museum | 0.2 | public | null | null |
cda-0011629 | USCQXQPULYJPP FNQIGUX SFCUWBOIH QFUVHWT XKWMPVV VZCTVLYVUKRS UIG ONCSCUD QSGVJSWGV POPYOJEHG ITS UJH HPNOXSJUA SZCMKF NOGTDXUSWFYVSG GJTFTYJT DCUJGVN GJTJIQ HBFUDW TIKIYFE VKJ BMRKFCFV ED UITHJ QPULYJPPV | USCQXQPULYJPP FNQIGUX SFCUWBOIH QFUVHWT XKWMPVV VZCTVLYVUKRS UIG ONCSCUD QSGVJSWGV POPYOJEHG ITS UJH HPNOXSJUA SZCMKF NOGTDXUSWFYVSG GJTFTYJT DCUJGVN GJTJIQ HBFUDW TIKIYFE VKJ BMRKFCFV ED UITHJ QPULYJPPV | TRANSPOSITION CIPHERS REARRANGE LETTERS WITHOUT SUBSTITUTION THE LIBRARY PRESERVES KNOWLEDGE FOR THE COMMUNITY PUBLIC INFRASTRUCTURE DESERVES CAREFUL DESIGN CAESAR SHIFTED THE ALPHABET BY THREE POSITIONS | gronsfeld | gronsfeld | null | {
"key": "11235"
} | hard | en | 179 | 179 | synthetic_educational | null | null | [] | |
jn25-116 | 37104 37186 37191 37189 37186 37197 37186 37196 37197 37193 37186 37196 37187 37191 37189 37186 37102 37195 37180 37191 37186 37185 37190 37191 37182 37191 37186 37190 37180 37195 37196 37199 37185 37186 37199 37191 37196 37187 37196 37199 37194 37182 37194 37196 37199 37186 37197 37186 37199 37187 37186 37184 37191 37... | 37104 37186 37191 37189 37186 37197 37186 37196 37197 37193 37186 37196 37187 37191 37189 37186 37102 37195 37180 37191 37186 37185 37190 37191 37182 37191 37186 37190 37180 37195 37196 37199 37185 37186 37199 37191 37196 37187 37196 37199 37194 37182 37194 37196 37199 37186 37197 37186 37199 37187 37186 37184 37191 37... | WE THE PEOPLE OF THE UNITED STATES IN ORDER TO FORM A MORE PERFECT UNION ESTABLISH JUSTICE INSURE DOMESTIC TRANQUILITY PROVIDE FOR THE COMMON DEFENSE PROMOTE THE GENERAL WELFARE | jn25 | jn25 | codebook | {
"type": "additive",
"value": "27182"
} | expert | en | 745 | 893 | cipher_museum | 0.2 | public | null | null |
commercial-code-027 | BABAB ZUZUZ ZAZUZ WAZUZ BAZUZ TAZUZ XUZUZ HABAB ZUZUZ XAZUZ GAZUZ ZAZUZ XUZUZ | BABAB ZUZUZ ZAZUZ WAZUZ BAZUZ TAZUZ XUZUZ HABAB ZUZUZ XAZUZ GAZUZ ZAZUZ XUZUZ | THE TRAP IS SET | commercial_code | commercial_code | codebook | {
"type": "none",
"value": null
} | expert | en | 65 | 77 | cipher_museum | 0.2 | public | null | null |
bazeries-265 | GYDAPNPAYIGYRDJ | GYDAPNPAYIGYRDJ | SILENCE IS GOLDEN | bazeries | bazeries | transposition | {
"type": "integer",
"value": 31
} | advanced | en | 15 | 15 | cipher_museum | 0.2 | public | null | null |
caesar-573 | SGD NMKX SGHMF VD GZUD SN EDZQ HR EDZQ HSRDKE | SGD NMKX SGHMF VD GZUD SN EDZQ HR EDZQ HSRDKE | THE ONLY THING WE HAVE TO FEAR IS FEAR ITSELF | caesar | caesar | substitution | {
"type": "shift",
"value": 25
} | beginner | en | 36 | 45 | cipher_museum | 0.2 | public | null | null |
hill-v2-0477 | WDKCUEEFIUSNWTSOUOIHLLZVUGVHXKANSAFJQIYZGFJVIQKFQHAQRXYBGVNVJGILYIZHEGNNYR | WDKCUEEFIUSNWTSOUOIHLLZVUGVHXKANSAFJQIYZGFJVIQKFQHAQRXYBGVNVJGILYIZHEGNNYR | ALEA IACTA EST ET CAESAR RUBICONE TRANSGRESSO BELLUM CIVILE INCIPIT PER TOTAM ROMANAM | hill | hill | polygraphic | {
"a": 9,
"b": 2,
"c": 7,
"d": 5
} | advanced | en | 74 | 74 | cipher_museum | 2.0 | public | null | null |
vic-214 | 9201292280292272275402895932785187910880805848421589213840659090840 | 9201292280292272275402895932785187910880805848421589213840659090840 | VENI VIDI VICI I CAME I SAW I CONQUERED ALL IN A SINGLE BATTLE | vic | vic | substitution | {
"type": "keyword",
"value": "ENIGMA"
} | advanced | en | 67 | 67 | cipher_museum | 0.2 | public | null | null |
enigma-339 | IKJWCJOHPYBHQUDVLSSVTDVZJOJTLMRJSJUFAIGDRWZ | IKJWCJOHPYBHQUDVLSSVTDVZJOJTLMRJSJUFAIGDRWZ | FORTUNE FAVORS THE BOLD AND THE BRAVE WHO DARE TO ACT | enigma | enigma | machine | {
"type": "rotor_start",
"value": "DOG"
} | expert | en | 43 | 43 | cipher_museum | 0.2 | public | null | null |
beaufort-v2-1024 | LQUPDBGWAWCQNL | LQUPDBGWAWCQNL | COVER MY RETREAT | beaufort | beaufort | polyalphabetic | {
"type": "keyword",
"value": "NEPTUNE"
} | intermediate | en | 14 | 14 | cipher_museum | 2.0 | public | null | null |
argenti-v2-0016 | 71 32 18 22 82 45 59 21 88 14 82 22 57 73 | 71 32 18 22 82 45 59 21 88 14 82 22 57 73 | COVER MY RETREAT | argenti | argenti | nomenclator | {
"type": "seed",
"value": "ROME"
} | expert | en | 28 | 41 | cipher_museum | 2.0 | public | null | null |
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